Method of fabrication of apparatus for air cooling of gas, method of fabrication of apparatus heat exchanger section (versions), method of fabrication of apparatus chamber for gas inlet or outlet, method of hydraulic pressure testing of apparatus heat exchanger section and method of hydraulic pressure testing of apparatus manifold for gas supply and removal

FIELD: heating.

SUBSTANCE: invention is of relevance for operation of apparatus for air cooling of gas and is to be utilised in power engineering industry. The proposed method of the heat exchanger apparatus fabrication envisages the following activities: fabrication of finned heat exchange tubes, a framework, at least a single apparatus section with lateral walls and beams joining them together, gas inlet and outlet chambers; packing the section with a bundle of finned one-way-flow heat exchange tubes; fabrication of a manifold for gas supply and removal, a support structure and their assembly. The section walls are represented by channel bars with shelves turned towards the tubes and are equipped with fairing displacers forming the U-bar reinforcement ribs. One of the methods of the apparatus heat exchanger section fabrication envisages positioning an optimal number of tubes within the section in accordance with the dependence specified within the framework of the invention concept. An alternative method envisages assembly of the section elements on a holding frame designed within the framework of the invention concept. A third method envisages assembly of the elements in a specific sequence combined with performance of hydraulic pressure testing. The method of fabrication of the apparatus chamber for gas inlet or outlet envisages manufacture of the chamber elements and their assembly in a sequence developed within the framework of the invention concept. The method of fabrication of the gas delivery and removal manifold envisages manufacture of the manifold body sections and their assembly with the help of the tool tab designed within the framework of the invention concept. Method of hydraulic pressure testing of the apparatus sections envisages mounting the section to be tested on the hydraulic test bench designed within the framework of the invention concept with the pressure increase and drop modes as per the dependence given. Method of the manifold hydraulic pressure testing envisages it being mounted on the hydraulic test bench or a loft with the help of support structures designed within the framework of the invention concept.

EFFECT: enhanced effectiveness and precision of assembly of the apparatus and elements thereof combined with reduction of labour and material consumption, reduction of hydraulic losses occurring in the apparatus as well as technological simplification of the hydraulic pressure testing of heat exchanger sections and manifolds of the apparatus for air cooling of gas, improved effectiveness and reduced labour intensity of their performance.

25 cl, 30 dwg

 

The text descriptions are given in facsimile form.

1. A method of manufacturing a heat exchanger air ohlord the deposits of gas, characterized in that it provides for the manufacture of finned heat exchanger tubes, the manufacture of the frame, at least one heat transfer section with side walls and uniting their beams, manufacturer of cameras or out of gas, stuffing bundle of heat exchange tubes, manufacture of the collector supply and discharge of gas, the support structure of the apparatus and Assembly of the parts, and each side wall heat transfer section are in the form of a channel bar with shelves facing the heat exchange tubes and placed on the inner surface of the wall of the channel longitudinally oriented plungers-fairing flow of the cooling medium, forming the ribs of the channel, which set the height of the walls of the channel in increments of axes corresponding to the double step between the rows of tubes in the beam, while at least a portion of each edge tubes in series and/or fins, at least one number when the gasket is slid under the shelf channel of the respective side wall heat transfer section of the device.

2. The method according to claim 1, characterized in that for uniting the side walls of the heat exchange section, use upper and lower transverse beams, which are mounted along the length of the side walls with a step between the axes, the components (0,08-0,15)L, where L is the pipe length of the beam between the camera input Il the gas outlet, m, the side walls of the frame are made by the installation of the Plaza of their blanks with fixing clamps, mainly in a vertical position with the subsequent attachment thereto of displacers-fairings that set with a gradient from one end of each wall to another, determined by the ratio of the difference of the same name altitude chambers of gas entry and exit to the distance between them facing the tube bundle walls, when the gasket sections of the bundle of tubes number of tubes height of the beam take from two to fourteen, and in each row are placed from 12 to 125 pipes, and in each even-numbered row, counting from the bottom, the number pipes take the even, and every odd number is odd or every even row, counting from the bottom, the number of pipes accept odd, and each of the odd - even when this use, at least part of the pipes, which are made of double-layer of materials with different thermal conductivity, preferably a bimetal in which the outer layers and their fins are made of vysokoteploprovodnyh metal or alloys, mainly from aluminum alloy with a thermal conductivity of not less than 5% greater than thermal conductivity of the material of the inner layer, which is used preferably steel, or use, at least part of the pipe, the outer layer to the x and/or their fins made of copper or copper alloys, or use at least part of the pipe, the outer layer and/or the fins are made of high strength and resistant to corrosive factors outside environment material, for example, of titanium or titanium containing alloys, or having a floor, at least the outer surface and the fins vysokoteploprovodnyh and resistant to aggressive media material such as aluminum or copper, and the gasket of the first number of the multiple beam single finned tubes produce preferably prior to installation on the frame elements section distantsiruyutsa elements providing a given step of pipes in series and pipes of each row, starting from the second height of the beam, separated from each other by the same or similar discontinuously elements in the specified step of the tubes in the rows and between the rows, while the tubes in the bundle is placed, ensuring that transfer the load from the pipe through distantsiruyasj elements on the frame, a heat transfer section.

3. The method according to claim 1, characterized in that the camera input or output gas is produced by running blanks of sheet metal for the side, top, bottom and end walls and at least two, with holes for the passage through them of the gas flow dividers camera input or output gas, the subsequent Assembly and connections for welding the side walls of the to with partitions and through them to each other with the formation of a single rigid structure, to which is attached the upper and lower walls, and then in one of the side walls of the forming tube of the Board, carry out the holes at the ends of heat exchange tubes, and the other side wall, forming an external Board, perform coaxially with the holes in the tube plate screw holes to allow the introduction of tools to secure the ends of the tubes in the tube plate and install plugs mainly on the thread in the holes of the outer Board, and the bottom and/or top walls perform hole nozzles mainly with flanges for connection to the collector, respectively, inlet or gas outlet, and openings in the walls perform before or after attaching them to the walls of the chamber, the orifices in the walls perform with the throughput of not less than 5.9% of the total capacity of not less than 2/3 of the heat exchange tubes connected to the tube Board, in the Assembly chamber at the beginning of the side wall forming the tube Board, establish temporary fixation, such as tack, partitions, and then install also with time fixing the second side wall forming an external Board camera, then on the wall of the set elements, providing additional time fixing the walls and the opportunity to which orota design for welding partitions, as well as the upper and lower walls of the chamber inlet or outlet gas, the welding of the walls and partitions are produced on supports predominantly with pre-heated inert gas, such as CO2with subsequent cleaning of welds and control, and before performing the holes in the side walls of the chamber inlet or outlet gas is subjected to heat treatment with subsequent treatment, such as blasting, and welding reference platico, and after the execution of holes in the side walls of the chamber inlet or outlet gas move on the frame Assembly air cooler gas or on the frame Assembly heat exchange section air cooler gas, and securing the end walls of the chamber inlet or outlet of gas from the other chamber walls of the entrance or exit of gas produced after the execution of transactions of the institution of the pipe ends into the holes of the tube plate and welding to pipe the Board.

4. A method of manufacturing a heat exchange section air cooler gas, characterized in that it provides for the manufacture and Assembly of the frame of the heat transfer section, cameras, entry or exit of gas from the top and bottom walls, side walls, forming, respectively, the pipe and the outside of the Board with holes, end walls and at least one partition, the Assembly of the walls of the partition p is istinnymi the displacers-fairing flow external cooling medium, preferably air, the packing section of the bundle heat exchanger having fins, one-way pipes installed in the partition rows the same height as the division series discontinuously elements by transmitting the load from the pipe through distantsiruyasj elements on the frame, a heat transfer section and the fixing of the ends of the tubes in the holes in the tube sheets, and the number n of tubes 1 meter width of the cross-section of the bundle of heat exchange tubes section are from the condition

where FTthe relative total area of the heat exchange surface of the bundle of finned tubes per 1 m2cross-sectional area of flow of heat transfer medium, preferably air, take in the range 72,4<FT<275,8, a dimensionless quantity;
d1the diameter of the tubes with fins, m;
d2the diameter of the same heat exchanger tubes without fins, m;
δ is the thickness of the edges of the fins or the average fin thickness, m;
β - step edges of the pipe, m

5. The method according to claim 4, characterized in that the gasket sections of the bundle of tubes number of tubes height of the beam take from two to fourteen, and in each row are placed from 12 to 125 pipes, and in each even-numbered row, counting from the bottom, the number of pipes accept even, and every odd number is odd or every even the poison, counting from the bottom, the number of pipes accept odd, and in each odd - numbered lines, while using at least part of the pipes, which are made of double-layer of materials with different thermal conductivity, preferably a bimetal in which the outer layers and their fins are made of vysokoteploprovodnyh metal or alloys, mainly from aluminum alloy with a thermal conductivity of not less than 5% greater than thermal conductivity of the material of the inner layer, which is used preferably steel, or use at least part of the pipe, the outer layer and/or the fins are made of copper or copper alloys, or use at least part of the pipe, the outer layer and/or the fins are made of high strength and resistant to corrosive factors outside environment material, for example of titanium or titanium containing alloys, or having a floor, at least the outer surface and the fins vysokoteploprovodnyh and resistant to aggressive media material, such as aluminum or copper, filling first row of multi-row beam single finned tubes produce preferably preset distantsiruyutsa elements providing a given step of pipes in series and pipes of each row, starting from the second height PU is ka, separated from each other by the same or similar discontinuously elements in the specified step of the tubes in the rows and between the rows.

6. A method of manufacturing a heat exchange section air cooler gas, characterized in that it includes manufacturing mainly on the Plaza side walls of the frame of the heat transfer section with wall displacers-fairing air, the Assembly which supports the frame elements of the frame of the heat exchange sections of the side walls, the lower cross-beams and forming the end wall frame cameras inlet and gas outlet, and also the stiffening of the frame, followed by the gasket multi beam from a single finned heat exchange tubes with their education and cameras inlet or gas outlet of the vessel, working under pressure, install the upper cross-beams and hydraulic testing of the mounted heat transfer section and end-bearing piles do with the location of their sites support different levels with a difference of elevation component (1,1-4,6)d, where d is the internal pipe diameter beam, and when the frame Assembly chamber inlet or gas outlet mounted on end bearing piles, and the upper and lower transverse beams of the frame of the heat transfer section set in increments between axes along the length of the side walls, with the other commercial (0,08-0,15)L where L is the pipe length of the beam between the camera input or output gas meters

7. The method according to claim 6, characterized in that the side walls of the frame are made by the installation of the Plaza of their blanks with fixing clamps, mainly in a vertical position with the subsequent attachment thereto of displacers-fairings, which operates mainly from curved profile and set with a gradient from one end of each wall to another, determined by the ratio of the difference of the same name altitude chambers of gas entry and exit to the distance between them facing the tube bundle walls, filling first row of multi-row beam from a single finned tubes produce preferably prior to installation on the upper zone of the lower transverse beams distantsiruyutsa folded items, mostly wavy providing a given step of pipes in series, pipes of each row, starting from second on the height of the beam, separated from each other by the same or similar discontinuously elements in the specified step of the tubes in the row and between rows, and in the beam pipe is laid transmitting the load from the pipe through distantsiruyasj elements on the frame, a heat transfer section, and the upper cross beam of the frame set by adjunction or clamped to the pipe on the top row of beam mainly across distantsiruyasj elements, laid pipes on the top row of the bundle.

8. A method of manufacturing a heat exchange section air cooler gas, characterized in that it includes the manufacturer at the Plaza of the side walls of the frame heat exchanger section with wall displacers-fairing air, the Assembly which supports the frame elements of the frame of the heat exchange sections of the side walls, the lower cross-beams and forming the end wall frame cameras inlet or gas outlet, and also the stiffening of the frame, followed by the gasket multi beam from a single finned heat exchange tubes with their education and cameras inlet or gas outlet of the vessel, working under pressure, install the upper cross-beams and hydraulic testing of the mounted heat transfer section, and the upper and lower transverse beams of the frame of the heat transfer section set by the length of the side walls with a step gradient of elevations equal to (0,12-0,51)d, where d is the internal pipe diameter beam, and for mounting the camera in or out of gas on end parts of the side walls in the upper zone and the greatest part of the height of the walls perform different height cuts mainly under the dimensions of the cross section of the chambers, and the upper and lower transverse beams of the frame of the heat transfer section establish sagom axes along the length of the side walls, components (0,08-0,15)L, where L is the pipe length of the beam between the camera input or output gas meters

9. The method according to claim 8, characterized in that the cut-set reference tables under camera input or output gas from the ribs, which serve preferably in the form of struts, the side walls of the frame are made by the installation of the Plaza of their blanks with fixing clamps, mainly in a vertical position with the subsequent attachment thereto of displacers-fairings, which operates mainly from curved profile and install from one end of each wall to the other with a slope determined by the difference of the same name altitude chambers of gas entry and exit to the distance between them facing the tube bundle walls, filling first row of multi-row the beam from a single finned tubes produce preferably prior to installation on the upper zone of the lower transverse beams distantsiruyutsa folded items, mostly wavy providing a given step of pipes in series, pipes of each row, starting from second on the height of the beam, separated from each other by the same or similar discontinuously elements in the specified step of the tubes in the row and between rows, and in the beam pipe is laid transmitting the load from the pipe through distantsiruyasj e the cops on the frame, a heat transfer section, and the upper cross beam of the frame set by adjunction or clamped to the pipe on the top row of beam mainly through distantsiruyasj the elements arranged on the tubes of the upper row of the bundle.

10. A method of manufacturing a chamber inlet or gas outlet of the air cooling gas or air cooler gas, characterized in that it provides for the production of blanks from sheet metal for the side, top, bottom and end walls and at least two, with holes for the passage through them of the gas flow dividers camera input or output gas, and blanks for the side walls carry a length corresponding to the width of the machine or heat transfer section of the apparatus, all preparations are made with the implementation of the bevels for welding, and at least in the blanks for the side walls of the forming tube and the outside of the Board camera the entrance or exit of gas, as well as preparations for the upper and lower walls of the chamfer perform a polygonal configuration in cross section with education supporting areas and facets of welding socket with an angle 41-53°, and after casting produce consistent and splicing the welding of the side walls with partitions and through them to each other with the formation of a single rigid structure to which is attached the top of the YOYO and the bottom wall, then in one of the side walls of the forming tube of the Board, carry out the holes at the ends of heat exchange tubes, and the other side wall, forming an external Board, perform coaxially with the holes in the tube plate screw holes to allow the introduction of tools to secure the ends of the tubes in the tube plate and install plugs mainly on the thread in the holes of the outer Board, and the bottom and/or top walls perform hole nozzles mainly with flanges for connection to the manifold inlet or gas outlet, with a partition installed in the altitude range average ±1/4 the height of the camera the entrance or exit of gas, starting from the middle horizontal plane at the height of the camera input or chamber gas outlet, and the end wall of the chamber inlet or chamber gas outlet mounted after installation and fixing in the tube plate chamber inlet or gas outlet ends of the heat exchanging tubes, the system of holes in the walls perform with the throughput, greater than, not less than 5.9% of the total capacity of not less than 2/3 of the heat exchange tubes connected to the tube Board.

11. The method according to claim 10, characterized in that the height of the light of the side walls of the chamber inlet or gas outlet take 1.9-3.2 times longer than the width in the light of the partitions, as well as the upper and lower walls of the chamber inlet or outlet gas, and the walls set within the middle third of the height of the camera in or out of gas in the world, with a system of holes in the walls perform to attach them to the walls of the chamber or out of gas or holes in the walls perform after attaching them to the walls of the chamber or out of gas.

12. The method according to claim 10, characterized in that the blank for the chamber walls of the entrance or exit of gas and partitions are cut mainly on horizontal machines with an allowance, and the allowance of blanks for the side walls on each side across the width of the walls are 1.9-2.2 times less than on each side along the length of the side wall, and is equal to the seam allowance on all sides of the blanks to the end walls and billets for partitions, the allowance of which execute on each side just across the width of the partition, when the camera Assembly inlet or outlet gas first into the side wall forming the tube Board, set with time fixing, for example by tack, partitions, and then install also with time fixing the second side wall forming an external Board camera input or output gas, after which the walls of the set elements, providing additional time fixing the walls and the possibility regards the OTA design for welding partitions, as well as the upper and lower walls of the chamber inlet or outlet gas, the welding of the walls and partitions are produced on supports predominantly with pre-heated inert gas, such as CO2with subsequent cleaning of welds and control, and before performing the holes in the side walls of the chamber inlet or outlet gas is subjected to heat treatment with subsequent treatment, such as blasting, and welding reference platico, and after the execution of holes in the side walls of the chamber inlet or outlet gas move on the frame Assembly air cooler gas or on the frame Assembly heat exchange section air cooler gas, and securing the end walls of the chamber inlet or outlet gas produced by welding with the other walls of the chamber inlet or outlet gas after performing the operations of the institutions of the pipe ends into the holes of the tube plate and welding to the tube plate.

13. The method according to claim 10, characterized in that the openings in the side wall forming the tube Board, perform under pipes 12-36 mm, with multilayered their location and offset in each row at 40-60% of their step, with each row execute 20-70 holes, the number of rows take from 3 to 16, and holes for the nipples for connection to the manifold inlet or gas outlet perform in the bottom wall of the Cam, the market entry or exit of gas 2-4, diameter 120-156 mm

14. A method of manufacturing a manifold inlet and outlet gas air cooler gas, characterized in that it includes manufacturing at least the intermediate sections of the body of the collector inlet and outlet gas from performing in them holes for pipes with flanges for connection to a camera input or output gas heat transfer section of the apparatus, the manufacture of the mechanical elements of the body in the form of heads of double curvature, as well as the manufacture of flanges with pipe, Assembly and welding of the casing of the collector inlet and outlet gas by pristykovyvayas intermediate sections to the Central cylindrical section in the form of a tee, preferably seamless, with two coaxially adjacent intermediate sections, cylindrical, having a diameter not smaller diameter intermediate sections, areas and adjacent to these areas at an angle, mostly 90°, which is also located at an angle, mostly 90° to the plane passing through the vertical axis of the nozzle intermediate sections, the third is also cylindrical, having a diameter of 0,81-1,10 diameter cylindrical part of the body, a piece for connection to a pipeline, welding to the intermediate sections of the bottoms, and then mounted on the casing of the collector inlet and outlet gas tubes to the flanges with what insatia flanges on the plane, the angle and design of the distance between the flanges with their subsequent accession to the housing in the bore of the body of the manifold inlet and gas outlet mounted on supports at least part of which is performed with two supporting elements, the supporting plates arranged at an angle to each other with the possibility of bearing on them the body of the collector inlet and outlet gas with simultaneous touch at least two forming its cylindrical surface and additionally fix the case no less than one compression pressure element.

15. The method according to 14, characterized in that during the manufacture of the intermediate sections of the body to form holes in them sections mounted on bearings similar to the bearings used for cutting pipes with flanges, and an intermediate shell sections located on each side of the Central section, perform from 2 to 8 holes for pipes with flanges for connection to a camera input or output gas heat transfer section of the apparatus, the orifices in the intermediate sections of the body that is most remote from the Central section of the casing pipes for connection to the camera input or output gas perform on the distance of their axes from the nearest to it end of the intermediate sections in which they are formed, not less than the diameter of the intermediate section, the flanges do Vorotnikova with a conical extension in the area of the joint to the chamber inlet or gas outlet, and a conical extension do with the angle of inclination of the generatrix of contact of the plane of the flange constituting 72-87°, after manufacturing of the intermediate sections and the flanges of the pipes produce mechanical processing - beveling and chamfering on milling machines, and after the manufacture of the heads of their machining - beveling and chamfering of produce in the vertical machine, the center section using the length component of 0.45-0.74 and the distance between the axes closest to her nipples for connection to the camera input or output gas heat transfer section of the apparatus, and the bottom housing of the collector inlet and outlet gas perform punching, after welding heat treatment and visual, measurement and x-ray control of welded seams, then the assembled housing of the collector inlet and gas outlet are placed on the test stand, set of plugs for pressure testing casing of the collector inlet and outlet gas, which is carried out by filling the casing with fluid, creating a test pressure value exceeding estimated up to 40%, preferably 13,8 MPa, extracts for 10 min, examination, followed by reducing the pressure prior to the settlement, preferably 10 MPa, then PR is lead visual inspection for leaks and ottavani, and then reduce the pressure to zero, disconnect the pipes and appliances and fully drain the liquid, then purge the body cavity of the collector inlet and outlet gas with dry compressed air, after hydraulic testing produce preservation of the internal cavity of the manifold inlet and gas outlet.

16. The method according to 14, characterized in that the enclosure of the collector inlet and outlet gas air cooler gas or sections of the body of the collector apparatus using the support, which comprises a frame with at least two support elements arranged on both sides of the vertical middle longitudinal plane of the manufactured housing manifold inlet and outlet gas remote from its longitudinal axis to the reference point touch in the lower half of the body at a radial distance corresponding to its outer radius, while supporting elements of the supporting plates each contain at least one flat section, normal to the corresponding radius and located with the possibility of bearing along generatrix of the cylindrical part of the housing or his section with the angular deviation of the specified radius from the vertical in a plane normal to the generatrix, the angle of 15-75° in both directions, starting from the lowest point of the cross-section of the housing or section having the shape of the advantages of the NGO in the form of a body of rotation, and the lower part of the frame from its lower bearing surface provide not less than one element, containing transverse relative to the housing of the collector inlet and outlet gas or section of the protrusion or the recess for installing, adjusting and fixing the position of support and/or installed on her body collector inlet and outlet gas or sections along the longitudinal axis of the supporting base processing equipment or Plaza and/or relative to the axis, in addition, provide support, at least one compression pressure element, which is made with the possibility of covering at least part mounted on the support housing of the collector inlet and outlet gas or its partition and pressing at least two spaced apart on opposite sides of the vertical middle plane of the points in the upper half of the perimeter of the cross-section of the housing of the collector or his section, with captive clamping element do with the possibility of pressure to the body of the collector inlet and outlet gas or partitions on part of the perimeter of the upper half casing of the collector inlet and outlet gas or section, preferably a collar clamping element is performed with a flexible chain mainly the clamping section and fastened to the frame with one end fixed to one side of the collector or his seconds the AI, additionally, compression of the retainer element supplied with one end of a tension device, preferably in the form of a bolt connected at one end with the corresponding end of the flexible section coupling element and the other end of the bolt is passed through the hole in the frame and lock nut, and the lower part of the frame is performed in the form of a base plate, in which the side of the lower support surface to form a longitudinal groove, the axis of which is oriented parallel to the axis mounted on a support housing of the collector inlet and outlet gas or section, and the fixing groove is placed a removable elements, mainly in the form of parallelepipeds, forming beyond the lower bearing surface protrusions with the side faces parallel to the faces of the groove, and the base plate frame set form their body is not less than two mainly parallel supported, at least on the outer side ribs of the wall, which is oriented transversely of the casing of the collector inlet and outlet gas or sections, and in the upper part of the frame provide reference tables for fastening the ends of the collar of the clamping element.

17. Way hydraulic testing of the heat exchange section air cooler gas, characterized in that it provides for the placing on hydroscience made the Oh heat transfer section with cameras inlet or gas outlet, and a bundle of heat exchange tubes, sealed with the installation of caps on flanges camera input or output of the gas filling the tube space and cameras inlet or gas outlet section of an incompressible fluid, mainly water, gradual ascent pressure, shutter speed, manual removal of the pressure, visual and instrumental monitoring, draining, drying and documentary fixation test results and report on them, and the section is placed on hydroscience, which includes end and at least one intermediate support, the supporting surface of which is verified by plane, and each end support of hydroscand set the offset to the transverse axis of hydroscand along the length of the section and education cantilever overhang end portion of the test section of the outer faces of the camera input or output gas to the axis of the terminal support section length equal 2,1-3,5 width of the chamber inlet or outlet gas, and the speed of lifting and lowering the pressure to accept of the conditions
,
where- maximum pressure during testing, MPa;
Rcalc- design pressure, MPa;
Δ - pressure drop per second, MPa/s;
t - time increase or reduce the pressure in the tests, C.

18. The method according to 17, characterized in that the feel of the heat exchange section is of different height position of the camera in or out of gas, due to the slope of the heat transfer pipes, and different height location of the camera entrance or exit of gas and pitch pipes provide constructive perform heat transfer section, in which the camera input or output gas set at different levels, and the connecting pipe fitted with a slope defined by the altitude differential placement of cameras or out of gas in the heat transfer section, while supporting surface supports hydroscand have a horizontal or inclined plane, increasing different height location of the cameras input or output gas and the slope of the heat exchange tubes.

19. The method according to 17, characterized in that the different height of the location of the cameras of the entrance or exit of gas and slope to drain the fluid heat exchanging tubes provide the location of the heat transfer section on hydroscience, a support surface which supports verify on an inclined plane, the inclination of which to the horizon take from 0.002 to 0,009.

20. The method according to 17, characterized in that when pressure testing the pressure measurement is made according to two reliable gauges, and pressure is gradually raised to a value greater than 25-40% of the design working pressure, the pressure was kept for not less than 10 m, and removing the pressure initially produce to the calculated value, then inspect the heat is bonneu section, and then reduce the pressure to 0, and during hydraulic tests at ambient temperatures below 0°C, take measures to avoid freezing of the liquid, for example using a fluid with additives which lower the temperature of its freezing, with one pipe for exhaust and one of the pressure gauges hydroscand, which is embedded in the socket, set on top of one of the cells of the entrance or exit of gas, mainly in the upstream, and the other connection for air vent mounted on the top cover another camera input or output gas pipe for the fluid, a pressure and subsequent drain the fluid after testing and one of the pressure gauges hydroscand mounted on the stub of one of the flanges camera input or output gas, preferably lower located, and to drain the fluid using additional pipe, which is installed on the door of one of the flanges of the other camera input or output gas, preferably upstream, preferably tubes to drain the fluid sets with different ends of the test section diagonally in the plan, and the liquid used with the addition of inhibitors to prevent corrosion of the metal heat transfer section.

21. The method of pressure-test the inlet manifold and from the ode gas air cooler gas, characterized in that it provides for the placing on hydroscience made collector inlet and outlet gas tight install plugs on flanges for the connection of the collector inlet and outlet gas chambers inlet or gas outlet of the device and the open end of the pipe to attach the collector inlet and outlet gas to the gas, fill the housing of the collector inlet and outlet gas incompressible fluid, mainly water, gradual ascent pressure, shutter speed, manual removal of the pressure, visual and instrumental monitoring, draining, draining the collector inlet and outlet gas and documentary fixation test results and report on them, and the collector inlet and outlet gas is placed on hydroscience, which includes installed on horizontal basis, or on the Plaza, or on the frame Logement support the bed, made mainly by the shape of the casing of the collector inlet and outlet gas and a match in the reference section of the perimeter of the cross-section of the body in an arc, the length of which is 0.22-0,78 lower half of its perimeter, plugs on flanges for the connection of the collector inlet and outlet gas from the chamber inlet or gas outlet of the apparatus operates mainly with holes that match the size, location and kolichestvo evenly distributed around the circumference of the holes in the respective flanges body collector inlet and gas outlet, and the cap on the open end of the pipe to attach the collector inlet and outlet gas to the pipeline attached under tension to the body of the collector inlet and outlet gas through the outboard bearing, and at least a nozzle for air release is mounted on the stub, and the speed of lifting and lowering the pressure to accept of the conditions
,
where- maximum pressure during testing, MPa;
Rcalc- design pressure, MPa;
Δ - pressure drop per second, MPa/s;
t - time increase or reduce the pressure in the tests, C.

22. The method according to item 21, characterized in that use hydraulic workbench, which has at least two, mostly four Logement bearing and an outboard bearing, which is located between ligamentum bearings on the location of the pipe to attach the collector inlet and outlet gas to the pipeline, mainly in the Central part of the collector inlet and outlet gas with multidirectional spatial orientation of the input vectors in socket for connection to a gas pipeline and vectors of input and output for connection, respectively, to the chamber inlet or gas outlet of the apparatus of the collector inlet and outlet gas have on hydroscience with the orientation of the axis of the pipe for joining Gazoprovod the at up with a possible deviation from the vertical by an angle not exceeding 45°, while the hydraulic testing pressure measurement is made according to two reliable gauges, and pressure is gradually raised to a value greater than 25-40% of the design working pressure, the pressure was kept for not less than 10 m, and removing the pressure initially produce to the calculated value, then inspect manifold inlet and gas outlet, and then reduce the pressure to 0.

23. The method according to item 21, wherein during hydraulic tests at ambient temperatures below 0°C, take measures to avoid freezing of the liquid, for example, to use the liquid with additives which lower the temperature of its freezing.

24. The method according to item 21, wherein when the hydraulic tests to use the liquid with the addition of inhibitors to prevent corrosion of the metal collector inlet and gas outlet.

25. The method according to item 21, wherein filling the housing of the collector inlet and outlet gas incompressible fluid is produced through the pipe, which is connected to one of the pressure gauges hydroscand and set on the cover overlying the open end of the socket for connection of the collector inlet and outlet gas to the gas, and the second pressure gauge attached to the pipe used for venting when filling to the lecturer inlet and outlet gas incompressible fluid, or fill the housing of the collector incompressible fluid is produced through the pipe, which is installed on the flap overlying one of the flanges intended for connection of the collector inlet and outlet gas from the chamber inlet or gas outlet of the apparatus.



 

Same patents:

FIELD: oil and gas production.

SUBSTANCE: invention refers to gas transporting via pipelines and can be implemented for testing of multi-purpose valves of main line. The method of evaluating loss of gas consists in injecting indicator gas directly into the cavity of the valve of the multi-purpose valve system and in conditioning during certain period, whereupon concentration of indicator gas is measured in the cavity of the valve; further, on base of obtained values loss of transported gas through the untight gate and leak of tested multi-purpose valves are determined.

EFFECT: upgraded accuracy of evaluating of loss.

8 cl, 1 dwg

FIELD: physics.

SUBSTANCE: mechanism of moving the test pipe is in form of a live roller with lengthwise movement. The attachment fitting of the pressure plug is on a post opposite the test head. In the initial state the pressure plug is put on the attachment fitting, and its outer diametre does not exceed the outer diametre of the coupling end of the pipe. In the pressure plug for the pin-pipe end, a case is made in form of a nut-threaded plug, corresponding to the thread of the pin. In the un-threaded part of the case on the side of the inner surface, there are openings for communication with the cavity of the test pipe. An elastic sleeve gasket is made in form of a diametrically expanding cup under external effect, with a heavy base and inner lugs on the side opposite the base and is put into the threaded part of the case with an annular gap from the inner surface of the test pipe. A rod, movable in the longitudinal direction, is fitted in the case and is provided with a mouthpiece which interacts with lugs of the sleeve gasket. The mouthpiece has an opening for linking the cavity of the pipe with the cavity of the sleeve gasket.

EFFECT: increased reliability and service life, reduced specific quantity of metal of the installation, used for testing internal hydrostatic pressure of threaded pipes of oil products with screwed on sleeve gaskets.

2 cl, 2 dwg

FIELD: physics; testing.

SUBSTANCE: present invention relates to test engineering and is particularly meant for testing pipe fittings. Technical outcome is achieved due that, the apparatus for testing hollow objects contains immovable and movable face plates fitted on a stand, each of which has a groove, which interacts with the landing projection of a stopper with a central channel and with an elastically deformed ring, which seals the inner cavity of the object. The movable face plate has an inlet channel for test medium. According to the invention, each stopper is equipped with a tightener, which interacts with the elastically deformed ring, sealing the inner surface of the object, and controlled by screws passing through the body of the stopper. The screws, passing through the body of the stopper, are uniformly arranged around, and there are at least two of them.

EFFECT: provision for reliable sealing of connecting pipes of the test object during testing, with possible deviation of the geometry of their inner surfaces.

2 cl, 3 dwg

FIELD: physics, tests.

SUBSTANCE: invention is related to the field of machine building and may be used for testing of pipeline valves bodies. Technical result is provided by the fact that system comprises table for installation of tested product, in internal cavity of which elastic reservoirs filled with liquid medium are placed prior to air supply. Table is installed in bath with the possibility of its separation into upper and lower parts communicated by pipe. Lower part of bath is filled with water and connected to source of compressed air. Tested product is tightened with plugs equipped with elastic reservoirs with the possibility of liquid supply to them via pipelines from receiver connected to the source of compressed air. At that according to invention receiver is equipped by level indicator, tested item is installed in frame that covers the tightening plugs with elastic reservoirs so that tested product might be installed on table together with plugs and elastic reservoirs, and one of plugs has connection to high pressure pipeline of testing gas medium.

EFFECT: expansion of technological resources and higher qualitative assessment of test.

2 cl, 1 dwg

FIELD: physics, trials.

SUBSTANCE: invention concerns field of exploring technics. Device contains tube plugs with sealing devices for hermetic sealing of trailer holes, system for making of pressure of exploring medium (fluid or gas), and a casing which the tested device is put on. The casing is located in tested device with the underload backlash also is fastened to one of the tube plugs. The opposite extremity of casing is executed as the power cylinder with the piston and a rod. On the extremity of rod acting from the cylinder, fastens demountable tube plug. Thus the cylinder is supplied by holes for receipt of exploring medium in a vacuity over the piston from a rod and making of locking efforts on the tube plugs with formation of the closed vacuity between casing and tested device by means of the consolidations located in the tube plugs. For maintenance of tightness the piston area which pressure of exploring medium influences, exceeds the area of the tube plug, being under the pressure of exploring medium.

EFFECT: cutting of duration and material inputs, increase of safety of trials of devices of pipelines by interior pressure.

6 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: invention is related to power machine building and may be used, in particular, in hydraulic tests of heat exchange unit elements and heat exchange units of modular-sectional regenerative air heater. Technological complex of equipment for hydraulic tests comprises the following components that are technologically connected by working fluid: test bench for hydraulic tests of bent heat exchanging pipes, test bench for hydraulic tests of units with headers of air supply and exhaust and bundle of heat exchange pipes and test bench for drying of units with headers of air supply and exhaust, common or separate hydraulic systems with forcing installation with double-step supply of working fluid for stage of pipes filling and for stage of test pressure pulling. To connect bent pipes subject to hydraulic tests, clamping devices are used, developed in invention as hydraulic clamping devices with drives from pressure of hydraulic system working fluid pressure. Hydraulic system comprises tank with working fluid, forcing installation, piping from pipelines, stop valves and measuring instruments, and also foresaid hydraulic clamping devices. Method of hydraulic system assembly includes assembly of equipment, including installations with foresaid hydraulic clamping devices, which provide compression force from working fluid pressure. Methods of bent pipe hydraulic tests in version realisation provide filling of pipes packet with working fluid and their pressurising with application of foresaid hydraulic clamping devices with different realisation of their fixing on support structure. Hydraulic system for tests comprises support structures developed in invention for installation of units with air supply and exhaust. Test bench for drying of heat exchange units in version realisation comprises berth for unit installation, system of plugs and support system developed in invention.

EFFECT: increase of efficiency and reduction of power intensity, labour and material expenses for performance of hydraulic tests.

34 cl, 24 dwg

FIELD: technological processes; measurement.

SUBSTANCE: invention is related to the sphere of testing equipment and may be used for testing of pipes, pipelines and their connecting devices and joints for strength and leak-tightness. Device contains frame, which has in its ends the support fingers, on which from one side of frame there is a carriage installed with movable detachable plug, and on the other side there is immovable detachable plug. Carriage has the possibility of longitudinal movement in relation to frame with the help of hydraulic cylinder, which is installed in the carriage from the frame external side during tension testing of pipe or from the internal side of frame during pipe compression test. Every plug has a sealing element and is made in the form of counter end part of tested pipe and creates with the end part of this pipe the connecting device, which is equipped with stop element, which prevents the axial displacement of plugs and tested pipe. Connecting device may be made in the form of faucet joint with stop ring or in the form of flange joint with annular clamp of bow type as stop element. One of the plugs is connected with system for creation of testing pressure.

EFFECT: increase of testing axial loads and simplification of pipe testing design device.

7 cl, 7 dwg

FIELD: testing equipment.

SUBSTANCE: according to solution, it involves sampling of a base test section of the pipeline using non-destructive control methods in the re-insulation process of the pipe, blowing of the test medium to critical pressure, determination of indices of mechanical properties of the pipe metal, change of the defect pipe with retesting of the pipe base section for strength and water or air tightness with consequent increment of pressure and rehabilitation of the trunk pipeline. The trunk pipeline is rehabilitated using parameters, initially obtained from the test results of the base section test, while the operational resource of the trunk pipeline is calculated from design.

EFFECT: increasing the effectiveness of rehabilitation of trunk pipeline; accuracy in determining operational resource.

4 cl, 2 dwg

FIELD: the invention refers to control-diagnostics technique of bolting-adjusting fittings of the main gas pipeline.

SUBSTANCE: the mode of definition of volumetric consumption of transported gas through closed bolting-adjusting fittings being in impulse injection of portion of indicated gas into the flow of the transported gas at the output into the bolting-adjusting fittings, registration of the moment of its appearance with the aid of sensors of concentration of indicated gas before and after the bolting-adjusting fittings and measurement of time τ of delay of marker of passing of the portion of the indicated gas from the place of its injection to the place of reception of various values of static pressure of the transported gas, at testing of the bolting-adjusting fittings in natural conditions they additionally measure duration of impulses received with the aid of the sensors of concentration at the input and output of the bolting-adjusting fittings for various static pressures they calculate the value of special broadening Δd=f(τ) of various values of static pressures of transported gas and knowing the time of delay of marker τ and its special transported broadening Δd they define volumetric consumption of transported gas through closed bolting-adjusting fittings.

EFFECT: increases accuracy of definition of volumetric consumption through bolting-adjusting fittings.

4 cl, 2 dwg

FIELD: measurement equipment, particularly to test oil production tree.

SUBSTANCE: method involves pressing connection pipe to resilient sealing ring by compressing thereof with excessive pressure. First of all connection pipe is loaded with mass of production tree to be tested. Then the connection pipe is loaded with pressure of test medium contained inside production tree and connection device.

EFFECT: simplified testing and decreased power inputs.

8 cl, 3 dwg

Heat exchanger core // 2357170

FIELD: heating systems.

SUBSTANCE: inventions are intended for heat exchange, and can be used for heating heat carriers. Heat exchanger core consists of two groups of alternating plates. The latter are connected to each other and each plate in each group is made at least in one of its surfaces at least with three platelets, each of which consists of a group of parallel channels, holes passing through the first and second group of plates for transferring fluid heat carriers to the platelets and from them, and distributing channels connecting opposite ends of each platelet in each of the plates to some of the holes related thereto. Distributing channels that are connected to each of the platelets in the plates of the first group are located so that they cross the distributing channels that are connected to some of the appropriate platelets in the plates of the second group. Heat exchanger can include at least one core. Heat exchanger can include headers connected to the core. Heat exchanger can include at least two cores. In heat exchanger the cores are attached rear side-to-rear side, and headers are connected to assembly for transferring fluid heat carriers to the cores and from them.

EFFECT: providing required thermal efficiency, and decreasing dimensions and mass of heat exchanger.

31 cl, 16 dwg

Heat exchanger // 2334929

FIELD: heating.

SUBSTANCE: invention is referred to thermal engineering and may be used in district heating systems for heating service water. Heat exchanger contains primary circuit channel located between inlet and outlet connections, secondary circuit channel located between supply pipeline assembly and return pipeline assembly, heat-conducting device between primary circuit channel and secondary circuit channel, and temperature sensor. Temperature sensor is located between secondary circuit channels close to connection with return pipeline. Besides, temperature sensor contacts with heat-conducting device or situates at small distance from it.

EFFECT: space saving in heat exchanger when temperature is measured and good results are achieved.

7 cl, 5 dwg

FIELD: mechanical engineering; air conditioning and ventilation.

SUBSTANCE: invention relates to heat exchange devices used in air conditioning and ventilating plants, namely, to methods of evaporating cooling to dew point and to plate devices for evaporative cooling. According to invention, plates of plate device are made so that channels and perforation to pass from dry side to wet side can be at least partially wetted with evaporating liquid. Chute is provided made in part of plates which temporarily holds evaporating liquid in contact with wick material on surface of wet side of plate. Evaporating liquid flows along chute through perforation for liquid into following chute. When chute of plate from wet side is from above, perforation for liquid is on side forming reservoir for wetting opposite wick materials. When flow move along dry side, heat is conveyed to plate. In proposed method several heat transfer plates are used. Said plates have wet and dry sides and they form chutes. Plates are wetted form wet sides with evaporating liquid and they pass separately two flows, namely, working and product ones through dry sides. Flow of working gas passes along dry side and gets through perforation into channels on wet side which is cooled owing to evaporation, thermal conductivity of plate and its heat radiation.

EFFECT: provision of more effective air flow and heat transfer owing to evaporative cooling with intermediate coolant.

FIELD: gas turbine construction.

SUBSTANCE: matrix can be used in heat exchangers of heat regeneration heat system's exchanger, as well as for warming up (cooling down) gas or liquid in different heat-sing installations. Matrix of ring-shaped lamellar heat exchanger has heat-exchange members formed by lamellar plates with corrugated parts and openings of collectors, which are connected by means of lugs of internal and external diameters of plates or by means of lugs of collectors. Corrugated parts and collectors are limited by internal and external diameters of ring-shaped plate, or by lines being equidistant to them, and by frontal planes being parallel to axis of symmetry of corrugated parts. Axes of symmetry of any part and of collectors pass through center of plate. Angles between frontal planes of distributing and gathering collectors are equal to each other. Vertexes of angles are disposed at concentric circles having the same or different radiuses. Area of distributing collector relates to gathering collector is directly proportional to relation of corresponding radiuses of vertexes of angles and belongs to 0,4-0,8 interval.

EFFECT: improved efficiency of operation of heat exchanger.

2 cl, 7 dwg

FIELD: agriculture: heat engineering equipment for poultry and stock-rearing.

SUBSTANCE: the invention is dealt with the field of agricultural heat engineering equipment ensuring a heat transfer from one heat-exchanger to another in presence of aggressive corrosion-influencing components in one of them. The equipment may be used in the gas-air ventilation facilities of heat recovery in poultry and stock-rearing farms. The method of production of a cross-running heat exchanger out of a polymeric material containing a package made out of polymeric cellular plates bound to each other and encased in a box ensuring an inlet and an outlet of warm and cool air streams. At that the cellular plates located in one direction in a package are bound to each other by a two-sided polymeric adhesive tape through gaskets made out of the same polymer and placed along the surface and perpendicularly to directions of cells in a plate, are kept till full polymerization of the joints with following formation of the package on all its corners with metal angle sections into a rigid metal framework. At that in one of the vertical sides of the angle section they drill some bores ensuring a free running of a liquid. Then using a sliding fit the package is inserted in the guides made out of the angle sections and mounted perpendicularly to the corners of the air-distributive box so, that the bores of the lower corner of the package meet the bores of a lateral wall of a guide. The package is fixed in the guides formed by the metal angle sections. The bores of the lower angle section of a guide should be located opposite to the bores drilled-in in the lower wall of the air channel of the box placed above a draining container. The invention ensures the necessary tightness of the channels linking the heat exchangers, possibility to use the heat exchangers at low temperatures and also to increase the cost efficiency of the polymeric material cutting.

EFFECT: the invention ensures the necessary tightness of the channels linking the heat exchangers, possibility to use the heat exchangers at low temperatures and increased the cost efficiency of the polymeric material cutting.

2 dwg

The invention relates to heat-exchange equipment, implements the exchange of thermal energy between the two working environments through the wall, and can be used in ventilation systems and air conditioning for the heat exchange between the supply air and exhaust air

The invention relates to shipbuilding, and directly to the ship exchangers for heating of supply air

The heat exchanger // 2052757
The invention relates to a surface gas-liquid or gas-air heat exchangers, such as a regenerator for gas turbine engines

The heat exchanger // 2047076
The invention relates to a heating engineer, and in particular to heat exchangers, such as radiators, cooling systems of internal combustion engines

Vortex apparatus // 2341335

FIELD: mechanics.

SUBSTANCE: vortex apparatus comprises casing wit upper and lower covers, the lower one making a condensate collector, gas inlet/outlet and condensate outlet branch pipes, partitions, vortex pipe, initial compressed gas flow rate control device and condensate-separation units. Aforesaid vortex pipe includes a cold flow and hot flow pipes. Initial compressed gas flow rate control device incorporates a screw-type tightening device (STD) with adjusting washer furnished with a cross-piece with stem arranged in the STD membrane hole. The said stem passes via the cold flow pipe and through the gland in the upper cover out from the apparatus and is furnished with the rotation drive. The condensate-separation units comprise pipe laid between the said partitions, two pairs of crosswise slots arranged opposite to each other on the hot flow pipe at the distance of (1.25 to 1.45) d, where d is the pipe ID, from the STD edge and shifted relative to each other by 90°. Note that the said slots are arranged along the axis at the distance of (0.15 to 0.25) d. The circular chamber outlet channels, inside the hot flow pipe, are terminates at the gap between the casing wall and thin-wall cylinder. The hot flow pipe outlet is furnished with a nozzle and thin-wall cylinder is provided with confuser-diffuser element making an injector.

EFFECT: control over initial compressed gas flow rate by external effects and higher efficiency of condensation-separation processes.

1 cl, 4 dwg

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