Gas air cooling apparatus

FIELD: the invention refers to energy engineering namely to air cooling apparatus applied particularly for cooling of natural gas.

SUBSTANCE: the gas air cooling apparatus has ventilators for feeding exterior intertubular cooling environment predominantly air , at least two heat exchanging sections with multi-row single-pass bundle of finned tubes in which the tube rows are separated from each other with distancing elements fulfilled in the shape of folded plates interchanging along the length of the plate prominent and concave plots forming supporting sites for the tubes adjacent throughout the height of the bundle of rows. The configuration of the folded distancing element are accepted of the kind that transversal lines of the upper concave plots are located relatively to the flatness passing through corresponding transversal lines of the lower concave plots of the element in high-altitude diapason of values: from exceeding on a value γ1 over the flatness on the part of the thickness Δ of the distancing element making γ1=Δ-A, where A- amplitude of the fold, before location of the lower than mentioned flatness on the value γ2≤0,11d, and the pitch n of the folds along the length of the distancing element makes up n=(1,01-1,75)d where d - a diameter of finning along the exterior contour of the fins of the tubes.

EFFECT: increases stability of the bundle of the tubes of the heat exchanging section of the apparatus, thermal efficiency of the gas air cooling apparatus and also increases rigidity characteristics of the heat exchanging sections of the apparatus working under pressure.

17 cl, 13 dwg

 

The invention relates to the field of energy, namely, air cooling units (ACU), used in particular for the cooling of natural gas.

In the General case, the air cooling unit is a device consisting of two main parts: surface cooling (heat transfer section) and the system air supply.

The main structural differences AVO are in the spatial arrangement of the heat exchange sections and mutual arrangement of heat exchange sections and fan. By referring to the mutual direction of movement of fluids AVO is made as vehicles cross type, in which fluids move in mutually perpendicular directions. The cooling air does a single current through the tube bundle, and the hot technology product, such as the gas moves inside the pipe.

Known apparatus for air cooling gas containing a heat transfer section, secured in the tube sheets, with cameras inlet and outlet of the coolant, the fan drive and the base metal (RU 2075714).

Known air cooling apparatus with a horizontal arrangement of the heat exchange sections of the injection type, in which the fan is located to the coil in the direction of movement of the air (EN 2200907). Devices of this type are more simple and convenient in maintenance, but C is remove large areas, are more bulky and consume a lot of energy.

The closest analogue to the technical essence and the achieved result of the claimed device is a device for air-cooling the natural gas with the collector supply and discharge of the product AUG-75(100)used for cooling the gas at compressor stations of main gas pipelines (see Webcounter, Annesley and other Fundamentals of calculation and design of heat exchanger for air cooling. - SPb.: The subsoil, 1996, p.84-85, RIS). The apparatus consists of horizontal sections of the collector type, collected from bimetallic finned tubes, which are blown by the air flow injected from the bottom axial fans with drives from low-speed motors. Heat transfer section include chamber inlet and outlet of the refrigerant gas containing the tube plate with holes, into which are sealed the ends of the finned tubes. Pipe material: internal - steel fins - aluminum.

The disadvantages of the known AVO are high power consumption, a significant intensity and complexity of manufacturing, which makes them expensive to manufacture and operate. The long pipes and large dimensions and weight of the apparatus as a whole lead to a large consumption of material. Considerably higher power consumption of the actuator is of tilator due to the high aerodynamic resistance of the air when it travels through the tube bundle. In addition the air, rolling on the tube bundle, has a non-uniform velocity field that does not effectively use the entire heat exchange surface. Low velocity heated air at the outlet of the heat exchange sections may cause recirculation, i.e. the back-flow of the air flow in the rarefaction zone on the suction side of the fan and consequently energy losses. To a significant loss of power for moving fluid (cooled natural gas pipes also causes the increase of the hydraulic resistance of the gas distribution pipes beam from the camera to its supply. The individual units AVO, namely the collector supply and discharge of gas, pipe cameras and the actual bundle of finned tubes under pressure leads to excessive loads on structures located in areas of high pressure, and additional hydraulic losses associated with non-uniformity of the gas flow supplied to the cooling. Work in aggressive environments also requires the use of AVO corrosion-resistant materials that ensure its performance under these conditions.

Heat transfer section AVO gas, made of multi-row single-beam finned tubes arranged in parallel in the horizontal direction, are effective means and, providing the interaction of a large surface of heat exchange with a cooling fluid, mainly by air moving in the cross-direction. The problem with the tube bundles in such devices is the need to provide appropriate support for individual pipes so that the pipes were retained its structural integrity under the conditions of operating forces by rolling the tube bundle of the cooling air. In these conditions, the tube bundle is experiencing vibrations that increase and additional turbulization of the cooling fluid (air). In addition, for a beam pipe having large dimensions and weight, is of great importance optimization of parameters of heat exchange elements and their compact accommodation in heat transfer section without compromising thermal efficiency of the air cooling unit.

The location of the tubes in the bundle, or classically increments on an equilateral triangle or an enlarged transverse step, allows to reduce the pressure loss on the air side. Increasing the length of the pipe up to 18 m in the traditional implementation, increasing hardware thermal capacity due to the increase in the area of heat transfer, reduces stiffness and beam stability, significant deflections in the vertical plane, is azaleia edges of the tubes of adjacent rows, violation of uniform bore for air, thus deteriorating the hydrodynamic conditions of the flow tube bundle and reduced teploenergeticheskii characteristics against the settlement.

The present invention is to increase the efficiency of the air cooler as in the manufacture and in operation by reducing metal consumption and complexity of the manufacturing process, and reduce power consumption while increasing reliability and improving the maintainability of the design.

The problem is solved due to the fact that air cooler gas, according to the invention, contains a fan for supplying external annular cooling medium, preferably air, into the body, which is made partitioned, with at least two heat exchange sections, each of which includes a pressure vessel for the on-line environment, mainly gas, made in the form of multi-row single bundle of finned tubes communicated with the chamber inlet and a gas outlet and through them with the collector supply and discharge of gas, and the finned tubes are arranged in the beam offset in each row relative to the pipe in the adjacent rows, and the rows of tubes are separated from each other discontinuously elements made in the form of folded plates turn is engaged along the length of the plate convex and concave areas, forming a platform under the pipe adjacent the height of the beam series, and the folded configuration distancerange element is adopted such that the transverse line of the upper concave positioned with respect to a plane passing through the respective transverse lines of the bottom concave element, in a high-rise range: from exceeding the value of γ1on this plane by the thickness of Δ distancerange element, component γ1=Δ-A, where a is the amplitude of the folds, to the location below said plane on the value γ2≤0,11d, and step n folds along the length distancerange element is n=(1,01-1,75)d, where d is the diameter of the fins on the outer contour of the edges of the pipes.

Each section of the body of the device may be made in the form of having the skeleton of the vessel external cooling medium with the longitudinal side walls and transverse end walls formed by the chambers of the inlet and outlet pipe of the environment and the bottom formed by the buildings of the cones of the fan, which is installed under the heat exchange sections.

The apparatus may be made for cooling the natural gas fed to him with a working pressure of from 5 to 15 MPa, created by the compressor or compressors in the system compressor stations mainly of gas pipelines, while in the case of two heat transfer sections of the apparatus can be made to pass 150000-500000 m 3/hour cooled natural gas in terms of temperature, component 20°and the pressure of 0,101325 MPa, as an external cooling medium used primarily outdoor air supplied to annulus sections, and as a fan - blade fans.

The design of the pipes and chambers of entry and exit of the refrigerant gas, forming a vessel operating under pressure, may be performed on the working gas pressure, comprising 7,00-9,00 MPa, mainly of 7.36, 8,35 and 8,92 MPa.

In addition, the apparatus may be made of a material which does not lose its strength properties when working in climatic areas with an average temperature of the coldest five-day week is not lower than -60°With seismic activity up to 7 points, and the speed the pressure of the wind, the corresponding IV geographic area for the geophysical division of the territory.

Heat transfer section can be placed horizontally or with a slope of 0.002 to 0,009 in the axial direction of the pipe to the manifold inlet or gas outlet and mounted on the supports, made in the form of a rod of the frame, forming a spatial reference metal or medulloblastoma design, with frames heat exchange sections can be installed on spatial design on top and secured with the possibility of compensation is emperature deformations of the frame section.

At least part distantsiruyutsa elements can be executed in length, a composite of separate and not interconnected parts that are installed across the width of the beam coaxially to each other.

Convex and concave areas, at least part distantsiruyutsa elements can be defined adjacent to each other arcs of a circle, the radius R of the contact with the edges of the pipe is R=(1,0-1,12)d width distancerange element m=(0,15-2,8)d, where d is the diameter of the fins on the outer contour of the edges of the pipes.

The diameter of tube beading on the outer contour of the edges of the pipe R=57 mm, pitch pipes in a row can be 69±2 mm, the step of rows of tubes in the beam - 57,2 mm, step distantsiruyutsa elements along the length of the pipe - 1323 mm, width distancerange element 30±2 mm, thickness 10 mm, and the radius R of the concave may be 28,5 mm

Under each section can be set from one to six fans, each fan can be placed in a wind protective casing containing the diffuser and collector smooth entrance, while the collector smooth input can be performed in longitudinal section of a variable curvature configuration, at least from the inner surface, for example, on the lemniscate, and preferably round in plan, and the entry mouth of the casing in the zone of transition of the collector in the cone of m which can be performed in diameter, components of 0.6-0.95 to the width of the heat transfer section, and diffuser casing of each of the fans can be made in its upper part, in the zone of adjacency to the frame elements of the heat exchange section with the configuration of the output circuit of edges, providing the possibility of acceding to the respective circuit elements of the frame section.

Fans can be performed mostly two - or three-lobed and with adjustable angle of rotation of the blades, with a drive wheel of the fan mainly direct, direct from the low-speed motor, its power, component preferably 2.5 to 12.0 kW and a nominal rotational speed preferably 290-620 min-1.

Longitudinal walls of the frame section can be equipped with extended wall displacers flow external cooling medium, oriented in parallel to adjacent pipe sections, each heat exchange section may be made in the form of mainly rectangular panel, the number of rows of pipes located along the height of the panel may vary from 4 to 14, in a series hosted from 21 to 98 pipes with a nominal length of pipe section from 6 to 24 m, and the pipe can be performed mainly bimetallic, with an outer layer and fins from a material with a higher relative to the inner layer of talopram what bullying; appropriate, mainly of aluminum alloy.

Each camera input or output of the refrigerant gas can be performed by a length corresponding to the width of the heat transfer section of the apparatus, and includes a tubular boards forming the front side, in which the sealed ends of the tubes of the beam, and the rear side part of the camera is formed mainly by the external Board, which can be made with holes aligned with the holes in the tube plate.

The collector supply or exhaust gas may be communicated with the respective chambers, nozzles, and the inlet manifold for supplying gas and/or outlet manifold exhaust gas can be performed with the cutting edges to attach mainly by welding to the pipeline.

Sockets for connection to the camera input camera output can be fitted with flanges, primarily collar type, and connection flanges cameras input and output can be performed with pads.

The flanges can be selected under the strip.

The apparatus may be mounted on the spatial metal that is installed on the foundations fastened to them mainly anchor bolts and is made of rod elements - posts and beams, and girders form a flat in the plan, mainly horizontal design with longitudinal and Arachnida belts, forming the reference sites not less than two heat transfer section of the apparatus and compartments not less than four fans, and racks made of corner and intermediate and corner posts are made spatially trichotomy and intermediate - flat, V-shaped.

The technical result provided by the present set of essential features, is to increase the efficiency of heat transfer and increase the heat output of the apparatus and increase the service life of the device by ensuring rigidity of the beam while the exception of the engagement of the edges of the tubes of adjacent rows and no violation of the uniform bore for cooling air by preventing violations of the geometry of the beam as a result of bending of pipes and optimization of parameters of heat exchange elements.

The invention is illustrated by drawings, where:

figure 1 shows AVO gas, side view;

figure 2 - the same, end view;

figure 3 - heat exchanger section AVO gas, side view;

figure 4 is a view along a-a in figure 3;

figure 5 - node B in figure 3, showing the fastening of the finned tubes in the tube plate;

figure 6 - node In figure 4, showing the finned tubes of the beam, split discontinuously elements;

figure 7 - spatial structure for the mouth of the shutdown heat exchange sections and fans in the ABO gas, side view;

on Fig the same, top view;

figure 9 camera input or output of the cooled gas AVO gas, end view;

figure 10 is a view along G - g of figure 9;

figure 11 - the collector inlet or gas outlet AVO gas, side view;

on Fig - distanziali - item version with the location of the reference sites for the pipe in the upper concave areas exceeding the above conventional plane on the value γ1;

on Fig - distanziali - item version with the location of the reference sites for the pipe at the top of the concave sections below an imaginary plane on value γ2.

Air cooler gas that contains a fans 1 for applying an external annular cooling medium, preferably air, into the housing 2 of the device.

Fans can be performed mostly two - or three-lobed and with adjustable angle of rotation of the blades, with a drive wheel of the fan mainly direct, direct from the low-speed motor, its power, component preferably 2.5 to 12.0 kW and a nominal rotational speed preferably 290-620 min-1.

Each section 3 of the housing 2 of the apparatus may be made in the form of having the skeleton of the vessel low pressure with the longitudinal side walls 4, a transverse end walls 5 formed by the cells of the entrance 6 and exit 7 nutritio the Noah environment and the bottom 8, educated buildings diffusers 9 fan 1, which is installed under the heat-exchange sections 3.

Under each section 3 can be set from one to six fans 1. Every fan 1 can be placed in a wind protective casing 10 containing the cone 9 and the collector smooth entrance 11. Collector smooth input 11 can be performed in longitudinal section of a variable curvature configuration, at least from the inner surface, for example, on the lemniscate, and preferably round in plan. Input the mouth of the casing 10 in the transition zone of the collector 11 in the cone 9 can be performed by a diameter, comprising 0.6 to 0.95 to the width of the heat transfer section 3, and the cone 9 of the casing 10 of each of the fan 1 can be executed in its upper part, in the zone of adjacency to the frame elements heat transfer section 3 configuration circuit output edges, providing the possibility of acceding to the respective circuit elements of the frame section.

The apparatus may be made for cooling the natural gas fed to him with a working pressure of from 5 to 15 MPa, created by the compressor or compressors in the system compressor stations mainly of main gas pipelines (not shown), when the two heat transfer sections 3, the device can be made to pass 10000-500000 m 3/hour cooled natural gas in terms of temperature, component 20°and the pressure of 0,101325 MPa. As an external cooling medium used primarily outdoor air supplied to the annular space of sections 3 and as fans 1 - blade fans.

The device can be made with regard to work in climatic areas with an average temperature of the coldest five-day week is not below 60°With seismic activity up to 7 points, and the speed of the wind pressure, corresponding IV geographic area for the geophysical division of the territory.

Heat transfer section 3 can be placed horizontally or with a slope of 0.002 to 0,009 in the axial direction of the pipe 12 to collect 13 or distributing manifold 14 and mounted on the supports, made in the form of a rod of the frame, forming a spatial reference metal or medulloblastoma design 15 frames 2 heat exchange sections 3 can be installed on the spatial structure 15 on top and secured with the possibility of compensation of thermal deformations of frame 2 section 3.

The pipe 12 is made of ribbed and there are rows of 16 with the formation of multi-row single-beam 17 finned tubes 12. The rows 16 of tube 12 is separated in the beam 17 discontinuously elements 18.

At least the e, part distantsiruyutsa elements 18 can be made along the length of the composite of individual interconnected parts that are installed across the width of the beam 17 coaxially to each other.

Convex and concave areas, at least part distantsiruyutsa elements 18 may be defined adjacent to each other arcs of a circle, the radius R of the contact with the edges of the pipe is R=(1,0-1,12)d width distancerange element m=(0,15-2,8)d, where d is the diameter of the fins on the outer contour of the edges of the pipes.

Diameter of the fins of the tubes 12 to the outer contour of the edges of the pipe R=57 mm, pitch pipe 12 in a series of 16 may comprise 69±2 mm, the step of rows 16 of the pipe 12 in the beam 17-57,2 mm, step distantsiruyutsa elements 18 along the length of the pipe 12-1323 mm, width distancerange item 18-(30±2) mm, thickness 10 mm, and the radius R of the concave may be 28,5 mm

The longitudinal side walls 4 of the frame section 3 can be provided with a long wall displacers 19 flow external cooling medium, oriented in parallel to adjacent tubes 12 section 3, each heat exchanger section 3 may be made in the form of mainly rectangular panel 20, the number of rows 16 of the tube 12 along the height of the panel 20, may be from 4 to 14, in a series hosted from 21 to 98 pipes with a nominal length of pipe 12 in section 6 to 24 m, and the pipe 12 may be in the accomplished mainly bimetal, with the outer layer 21 and the fins 22 from a material with a higher relative to the inner conductive layer mainly made of aluminum alloy.

Each camera input 6 or 7 output of the refrigerant gas can be performed by a length corresponding to the width of the heat transfer section 3 of the apparatus containing the tube Board 23, which forms a front side, in which the sealed tube 12 of the beam 17, and the rear side part of the camera is formed mainly by the external Board, which can be made with holes 25, aligned holes 26 in the tube plate 23.

The collector supply 27 or diversion 28 gas may be communicated with the respective chambers by pipes 29 and 30, and the inlet 29 of the collector inlet 27 of the gas and/or the outlet 30 of the exhaust manifold 28 of the gas can be accomplished with cutting edges for joining mainly by welding to the pipeline.

The pipes 29 and 30 for connection with the camera input 6 and output 7 can be provided with flanges 31 and 32, predominantly collar type, and connection flanges 33 and 34 of the camera input 6 and output 7 can be performed with pads.

The flanges 31 to 34 can be selected under the strip.

The apparatus may be mounted on the spatial metal 15 which is installed on foundations (the drawing is not marked mounting them to the benefits of the natural enemy anchor bolts 35 and is made of rod elements - the racks 36 and bolts 37, and the crossbars 37 form a flat in the plan, mainly horizontal design with longitudinal 38 and 39 cross belts, forming support parts 40 not less than two heat transfer section 3 of the apparatus and the compartments 41 is not less than four fan 1, and the rack 36 is made angular 42 and intermediate 43, and the corner posts 42 are made spatially trichotomy and intermediate 43 - flat, V-shaped.

The housing 2 of the device is partitioned, with at least two heat exchange sections 3, each of which includes a pressure vessel 44 for the on-line environment, mainly gas.

The pressure vessel 44 can be made in the form of multi-row single-beam 17 finned tubes 12, is in communication with the chambers of the inlet 6 and a gas outlet 7, and through them with the reservoir inlet 27 and outlet 28 of the gas.

The design of the pipes 12 and camera input 6 and output 7 of the refrigerant gas can be performed on the working gas pressure, comprising 7,00-9,00 MPa, mainly of 7.36 MPa (75 kgf/cm2), 8,35 MPa (85 kgf/cm2and 8,92 MPa (100 kgf/cm2).

Finned tubes 12 may be located offset in each row 16 relative to the pipe 12 in adjacent rows 16.

The rows 16 of pipe 12 are separated from each other discontinuously elements 18, made in the form of folded plates 45 with the turn is engaged along the length of the plate convex and concave, forming a supporting platform 46 led tubes adjacent the height of the beam series plots.

The folded configuration distancerange element is adopted such that the transverse line of the upper concave 47 is positioned relative to the plane 49, passing through the respective transverse lines of the bottom concave 48 element 18 in the height range from exceeding the value of γ1on this plane by the thickness of Δ distancerange element 18, component γ1=Δ-A, where a is the amplitude of the folds, to the location below mentioned plane 49 by the value of γ2≤0,11d, and step n folds along the length distancerange element 18 is n=(1,01-1,75)d, where d is the diameter of the fins 22 to the outer contour of the edges of the pipe 12.

The invention provides rigidity and stability of the tube bundle heat transfer section of the apparatus, eliminates the violation of uniform bore for the working environment. This will increase the heat output AVO gas, as well as increase the strength characteristics of the heat transfer sections of the apparatus operating under pressure.

The number of rows of tubes in the bundle, the number in the number and length of tubes in these ranges provide the best achievable result, the efficiency of heat transfer with a minimum of metal constructions by providing the packing density of the tubes in Puig is E. Lower limits in the claimed ranges are designed for small AVO, top - to large-sized installations. This increases the heat transfer coefficient of the surface of finned tubes from the cooling air by performing the beam pipe of the material for the outer layer with higher heat conductivity than the inner layer, which passes through a cooled gas. In addition, increasing the total area of heat transfer surfaces by increasing the packing density of the tubes in the bundle, and also increases the reliability and durability of his work and reduces the metal structure.

In the range of the operating pressure of the injected gas from 5 to 15 MPa provides the best result on the efficiency of heat exchange of the refrigerant gas. Preemptive execution vessels of high-pressure gas of 7.36 MPa (75 kgf/cm2), 8,35 MPa (85 kgf/cm2and 9,82 MPa (100 kgf/cm2) ensures their work in the working pressure range of the gas from 7.00 to 10.00 MPa. This increases the reliability of the device operation at low ambient temperatures and high seismicity.

The possibility of installation of heat exchange sections with a slope of 0.002 to 0,009 with respect to the incident flow enables removal of the product passing through the pipes, stopping the machine.

make a reference frame as a supporting structure for buildings of large size and weight, experiencing heavy loads, including those caused by temperature and voltage, allows to increase the strength characteristics of the structure under the condition of reducing its weight through the use of spatial supports and profile elements made from ultra-strong lightweight materials, for example, metalloplastic.

Running fans and housings in which they are placed, provides a reduction of hydraulic resistance in the mains supply air and further increases the heat output of the unit as a whole. This is achieved due to channel air flow in the apparatus, with streamlined surfaces and providing maximum contact area RAM air pipe, and a uniform distribution of air through the front section of the heat exchange sections. And wall displacers air prevents the reverse flow of the air flow and power loss. The number of fans in the apparatus is determined by its size and length of pipe. Used in the apparatus of the fans are compact, simpler to manufacture and operate and more economical in energy consumption.

Air cooler gas from the lower position of the fan operates as follows. When the flow of cooling fluid (who is the ear) as a bundle of finned tubes, which transport natural gas, is flowing around the tube bundle air and contact heat exchange. Thus by optimizing the parameters of finned tubes of the beam, increasing their teploenergeticheskii characteristics and improves the aerodynamic condition of flow beam cooling coolant increases the total area of heat transfer surfaces by increasing the packing density of the tubes in the bundle.

Thus, when using the invention maximizes the efficiency of heat transfer with a minimum of metal, the reduction of hydraulic losses and, therefore, reduction of power losses in the highways of air and the cooled gas and increase the heat output of the apparatus and increase the strength characteristics of structural system.

1. Air cooler gas, characterized in that it contains a fan for supplying external annular cooling medium, preferably air, into the body, which is made partitioned with at least two heat exchange sections, each of which includes a pressure vessel for the on-line environment, mainly gas, made in the form of multi-row single bundle of finned tubes communicated with the chamber inlet and a gas outlet and through them with the collective is the ora inlet and gas outlet, and finned tubes are located in the beam offset in each row relative to the tubes in adjacent rows, and the rows of tubes are separated from each other discontinuously elements made in the form of folded plates with alternating along the length of the plate convex and concave sections, forming a platform under the pipe adjacent the height of the beam series, and the folded configuration distancerange element is adopted such that the transverse line of the upper concave positioned with respect to a plane passing through the respective transverse lines of the bottom concave element, in a high-rise range: from exceeding the value of γ1on this plane by the thickness of Δ distancerange element, component γ1=Δ-A, where a is the amplitude of the folds, to the location below said plane on the value γ2≤0,11d, and step n folds along the length distancerange element is n=(1,01-1,75)d, where d is the diameter of the fins on the outer contour of the edges of the pipes.

2. The apparatus according to claim 1, characterized in that each section of the body of the device made in the form of having the skeleton of the vessel external cooling medium with the longitudinal side walls and transverse end walls formed by the cameras input and output line environment, and the bottom formed by the buildings of the diffusers veins is esterov, established under heat exchange sections.

3. The apparatus according to claim 1, characterized in that it is made for cooling the natural gas fed to him with a working pressure of from 5 to 15 MPa, created by the compressor or compressors in the system compressor stations mainly of gas pipelines, when two heat exchange sections of the device is made to pass 150000-500000 m3/h cooled natural gas in terms of temperature, component 20°and the pressure of 0,101325 MPa, as an external cooling medium used primarily outdoor air supplied to annulus sections, and as a fan - blade fans.

4. The apparatus according to claim 1 or 2, characterized in that the design of the pipes and chambers of entry and exit of the refrigerant gas, forming the vessel pressure is made on the working gas pressure, comprising 7,00-9,00 MPa, mainly of 7.36; 8,35 and 8,92 MPa.

5. The apparatus according to claim 1, characterized in that it is made from a material which does not lose its strength properties when working in climatic areas with an average temperature of the coldest five-day week is not lower than -60°With seismic activity up to 7 points, and the speed the pressure of the wind, the corresponding IV geographic area for the geophysical division of the territory.

6. The apparatus according to P1, characterized in that the heat transfer section disposed horizontally or with a slope of 0.002 to 0,009 in the axial direction of the pipe to the manifold inlet or gas outlet and mounted on the supports, made in the form of a rod of the frame, forming a spatial reference metal or medulloblastoma design, with frames heat exchange sections are installed on the spatial structure on top and secured with the possibility of compensation of thermal deformations of the frame section.

7. The apparatus according to claim 1, characterized in that at least part distantsiruyutsa elements along the length of the composite of separate interconnected parts that are installed across the width of the beam coaxially with each other.

8. The apparatus according to claim 1, characterized in that the convex and concave areas, at least part distantsiruyutsa elements defined adjacent to each other arcs of a circle, the radius R of the contact with the edges of the pipe is R=(1,0-1,12)d width distancerange element m=(0,15 -2,8)d, where d is the diameter of the fins on the outer contour of the edges of the pipes.

9. The apparatus according to claim 8, characterized in that the diameter of the fins of the tubes at the outer contour of the edges of the pipe R=57 mm, pitch pipes in a row is (69±2) mm, pitch of rows of tubes in the beam - 57,2 mm, step distantsiruyutsa elements along the length of the pipe -1323 mm, width distancerange element (30± 2) mm, thickness 10 mm, and the radius R of the concave is 28.5 mm

10. The apparatus according to claim 1, characterized in that each partition is set from one to six fans, each fan is placed in a wind protective casing containing the diffuser and collector smooth entrance, while the collector smooth logged in longitudinal section of a variable curvature configuration, at least from the inner surface, for example, the lemniscate and preferably round in plan, and the entry mouth of the casing in the zone of transition of the collector in the cone diameter, comprising 0.6 to 0.95 to the width of the heat transfer section, and diffuser casing of each of the fan is made in the upper part, in the area near the frame elements heat transfer section with the configuration of the output circuit of edges, providing the possibility of acceding to the respective circuit elements of the frame section.

11. The apparatus according to claim 10, characterized in that the fans are made mostly two - or three-lobed and with adjustable angle of rotation of the blades, with a drive wheel of the fan mainly direct, direct from the low-speed motor power component preferably 2.5 to 12.0 kW and a nominal rotational speed preferably 290-620 min-1.

12. So the t according to claim 1, characterized in that the longitudinal walls of the frame section provided with a long wall displacers flow external cooling medium, oriented in parallel to adjacent pipe sections, each heat transfer section is made mainly in the form of a rectangular panel, the number of rows of pipes located along the height of the panel is 4 to 14, and in a series hosted from 21 to 98 pipes with a nominal length of pipe section from 6 to 24 m, and the tube is made mainly bimetallic outer layer and fins from a material with a higher relative to the inner conductive layer mainly made of aluminum alloy.

13. The apparatus according to claim 1, characterized in that each chamber inlet or outlet of the refrigerant gas made of length corresponding to the width of the heat transfer section of the apparatus, and includes forming the front side pipe Board, in which the sealed ends of the tubes of the beam, and the rear side part of the camera is formed mainly by the external Board, which is made with holes aligned with the holes in the tube plate.

14. The apparatus according to claim 1, characterized in that the reservoir inlet or gas outlet communicated with the respective chambers, nozzles, and the inlet manifold for supplying gas and/or outlet manifold exhaust gas is made by cutting to the of AMOC to attach mainly by welding to the pipeline.

15. The apparatus according to 14, characterized in that the nozzles for connection to the camera input camera output has flanges predominantly collar type, and connection flanges cameras input and output performed with pads.

16. The apparatus of clause 15, wherein the flanges are selected under the strip.

17. The apparatus according to claim 1, characterized in that the apparatus is mounted on spatial metal that is installed on the foundations fastened to them mainly anchor bolts and is made of rod elements - posts and beams, and girders form a flat in terms of mainly horizontal design with longitudinal and transverse zones, forming the reference sites not less than two heat transfer section of the apparatus and compartments not less than four fans, and racks made of corner and intermediate and corner posts made of spatial trichotomy and intermediate - flat V-shaped.



 

Same patents:

FIELD: the invention refers to energy engineering namely to air cooling apparatus applied particularly for cooling of natural gas.

SUBSTANCE: the cooling apparatus has ventilators for feeding of exterior cooling environment predominantly of air into the body of the apparatus and at least two heat exchanging sections with chambers of input and output of cooling gas. Single-passing finned heat exchanging tubes located in the section in rows according to its height and forming a bundle are packed into the tube plates. Each chamber of input and each chamber of output has from two to seven sockets for joining to the collector of input or output of gas which are connected with a gas pipe line. The total square of the transversal section in the light of the group of the heat exchanging tubes of the bundle communicated along the flow of the cooling gas preferably to the nearest to them the feeding socket, exceeds in 1,2-1,7 times the square of the transversal section of this socket in the zone of contiguity of the last to the chamber of input of gas into the heat exchanging section of the apparatus. At that the tubes of the bundle of the section are taken in at condition according to which the ratio of the square of the interior heat exchanging surface of the tubes to the total volume of in-tube space is determined with the coefficient that makes up (98-412) [ m-1].

EFFECT: increases economy of the air cooling apparatus as at manufacturing so as at exploiting due to decreasing metal consumption and labor-consuming at manufacturing and also decreasing of energy consumption at simultaneous increasing of reliability and improving maintainability of the construction.

18 cl, 11 dwg

FIELD: heat-exchange equipment.

SUBSTANCE: heat-exchange apparatus has supplying and removing collectors integrated by group of heat-exchange tubes having protrusions at their surfaces. Protrusions are made in form of sheets connected by their side surfaces with surface of tube along the length being equal to 1,5-3,0 thickness of sheets. Protrusions are disposed tangentially to surface of tube tat the points of connection of those sheets with tubes. Several sheets are fastened to tube along the perimeter of cross-section to overlap each other. Protrusions on surfaces of heat-exchange tubes are made in form of several sheets of different lengths being fastened along their side surfaces by welding or soldering along the whole length of surfaces of heat-exchange tubes. Protrusions in form of sheets fastened to surfaces of heat-exchange tubes can be also made to have slots and curves relatively sheets at adjacent, neighboring parts.

EFFECT: improved efficiency of heat exchange; provision of adjustment of heat flow.

7 cl, 12 dwg

FIELD: heat engineering devices.

SUBSTANCE: the recuperative heat exchanger has rigidly fastened tube plates with tubes installed in them in concentric circles, the tube cavities communicate with one another for supply of the heat-transfer agent, connections for supply and discharge of the heat-transfer agent by means of which the tube cavities are connected, the heat exchanger has intermediate tubes, the cavity of each tube communicates with the cavities of the two adjacent tubes by means of two branches, and the cavities of the delivery and discharge branches communicate with the cavities of the first and last tube of the formed tube coil, the interaxial distance between the last and first tubes in the adjacent concentric circles equals the interaxial distance of the branches, the length of the tubes installed in the adjacent concentric circles differs by the value equal or exceeding the size of the branches fastened on the tubes. Besides, pouring holes are made in the tube plates for communication of the cavities between the plates, the heat exchanger is provided with a perforated or cellular casing and lugs fastened on the plates, it is also provided with a perforated tube with a connection for discharge of the heated heat-transfer agent, it is installed in the holes heat-transfer agent, it is installed in the holes made in the center of the tube plates.

EFFECT: produced recuperative heat exchanger for heat-up of the liquid discharge zone in tanks with petroleum products.

4 cl, 4 dwg

The invention relates to heat-exchange technique and can be used in evaporators for refrigerating circuits

The heat exchanger // 2146795

The invention relates to the field of engineering, namely, to designs of heat exchangers

The heat exchanger // 2080536
The invention relates to heat exchange devices used in membrane technology for temperature control of mediums and products of membrane separation and apparatus alcohol production for carrying out processes of condensation in systems containing gases

FIELD: the invention refers to energy engineering namely to air cooling apparatus applied particularly for cooling of natural gas.

SUBSTANCE: the cooling apparatus has ventilators for feeding of exterior cooling environment predominantly of air into the body of the apparatus and at least two heat exchanging sections with chambers of input and output of cooling gas. Single-passing finned heat exchanging tubes located in the section in rows according to its height and forming a bundle are packed into the tube plates. Each chamber of input and each chamber of output has from two to seven sockets for joining to the collector of input or output of gas which are connected with a gas pipe line. The total square of the transversal section in the light of the group of the heat exchanging tubes of the bundle communicated along the flow of the cooling gas preferably to the nearest to them the feeding socket, exceeds in 1,2-1,7 times the square of the transversal section of this socket in the zone of contiguity of the last to the chamber of input of gas into the heat exchanging section of the apparatus. At that the tubes of the bundle of the section are taken in at condition according to which the ratio of the square of the interior heat exchanging surface of the tubes to the total volume of in-tube space is determined with the coefficient that makes up (98-412) [ m-1].

EFFECT: increases economy of the air cooling apparatus as at manufacturing so as at exploiting due to decreasing metal consumption and labor-consuming at manufacturing and also decreasing of energy consumption at simultaneous increasing of reliability and improving maintainability of the construction.

18 cl, 11 dwg

FIELD: systems for air ventilating and conditioning.

SUBSTANCE: apparatus includes housing, tray with water and level regulator arranged on tray. In cylindrical housing there is converging insert whose lower edge is arranged higher than lower edge of housing and higher than water level in tray arranged around cylindrical transition branch pipe having diameter less than that of housing but larger than diameter of lower edge of converging insert. Upper edge of transition branch pipe is arranged higher than lower edge of converging insert and it is secured to housing by means of two mutually normal rods in order to form between converging insert and transition branch pipe duct for passing air from room. Lower part of converging insert is embraced by cone shaped gate that may move along converging insert and may be fixed in intermediate and boundary positions, possibly in position for completely closing duct for air passing from room between converging insert and transition branch pipe. Transition branch pipe is joined with outlet diverging branch pipe which is joined with air distributing grid in the form of hemisphere. Second grid also in the form of hemisphere is arranged inside first grid with minimum gap relative to it. Second grid joined through shaft with impeller may rotate around axis of apparatus. Impeller is arranged inside transition branch pipe. All members of apparatus are made of corrosion resistant material.

EFFECT: possibility for controlling air humidifying at outlet of apparatus and for distributing humidified air in room.

1 dwg

FIELD: air conditioning.

SUBSTANCE: proposed indirect evaporative air cooling device has housing with tray, pipes for feeding and discharging, general, main, and auxiliary air streams, blowdown and drawing fans, and evaporation head incorporating capillary-porous plates separated by corrugated water-tight partitions. Capillary-porous plates are open on both ends and form so-called wet channels together with corrugated partitions wherein evaporation process cools down entire air stream being forced. Plates are made of permeable magnetic material that has bonding adhesive base and spatially oriented particles of magnetic filler characterized in high heat conductivity, corrosion resistance, and magnetization.

EFFECT: enhanced stability of evaporation head, enlarged cold-productivity range, provision for dispensing with regular washing of porous plates.

1 cl, 3 dwg

FIELD: air conditioning aids.

SUBSTANCE: method of air conditioning is based upon mixing internal and external air, cleaning, heating and moisturizing. Moisturizing and cleaning is performed simultaneously with mixing in twisted flux. Mixing is made in proportion being necessary for achieving required temperature. Method includes cleaning, moisturizing, cooling, drying and heating of air. Before putting thermal parameters in balance the twisted flux is created where cleaning and moisturizing is made; drying is conducted by means of cooling till getting due point. Air conditioning system has fan, mixing chamber, regulating valves, control devices provided with detectors, air cooler, air heater and sprinkling system. Mixing chamber is made in form of cyclone-type mixer and is matched with sprinkling system. Efficiency of heat and mass exchange is improved due to sprinkling air by fluid inside twisted flux together with reduction in aerodynamic resistance of system.

EFFECT: improved efficiency of operation.

6 cl, 2 dwg

FIELD: gas-turbine plants.

SUBSTANCE: method comprises overexpanding air in a gas-expansion turbine and compressing it in a compressor. Downstream of the turbine the ambient air is cooled by cool air, and moisture is withdrawn. The compressor is actuated from the turbine. The cooling of the ambient air by cool air downstream of the turbine is performed before its supplying to the letter. The moisture is additionally withdrawn from the overexpanded air, and additional compression of the overexpanded air downstream of the compressor up to the pressure of the ambient air is performed in an individual plant.

EFFECT: enhanced efficiency.

2 dwg

FIELD: systems for ventilation and air conditioning.

SUBSTANCE: apparatus includes housing having pan, inlet and outlet branch pipes, heat exchanging plates of capillary-porous material partially immersed into pan with water. Converging insert is arranged in cylindrical housing of apparatus. Ejection windows are cut out on surface of housing in front of walls of converging insert. Plates of capillary-porous material are arranged vertically and they overlap ejection windows; upper ends of said plates are mounted higher than said windows, their lower ends are immersed into pan with water. Outlet branch pipe of apparatus having diffuser shape at air outlet and cylinder shape of the remaining part is arranged coaxially with housing and it has diameter slightly less than inner diameter of housing. It provides minimum gap between inner surface of housing and outer surface of outlet branch pipe and possibility of motion of branch pipe inside housing along its axis by action of light effort of hand of operator for partially or completely overlapping ejection windows. Flow rate of air is controlled in apparatus by means of flap-type valve arranged in inlet branch pipe. Air distribution is realized by means of diffusers concentrically arranged in diffuser part of outlet branch pipe and having less diameters. Partitions are placed diametrically between less -diameter diffusers. Ducts restricted by diffusers and partitions are provided with air swirlers. All constructional members of apparatus except capillary-porous plate are made of corrosion-proof material.

EFFECT: possibility for controlling air humidity at outlet of humidifying device and distributing humidified air in room.

1 dwg

FIELD: heat-power engineering; manufacture of cheat multi-functional cold and heat generating plants.

SUBSTANCE: according to first version, proposed method includes heating the air in heat exchanger by burning fuel in furnace, preliminary heating of air at mixing with cold air and humidification of air before delivery of it to consumer. Preliminary heating of air is performed in air elevator; humidification of air is performed in circulating line; condensed moisture is removed from furnace, ash pan and humidifier by means of drainage units; for delivery of air to furnace, use is made of fan. According to second version, in summer season water or dry ice is placed in tubular heat exchanger; then air is fed to furnace by means of fan and to consumer through heat exchanger; moisture from furnace and ash pan is removed by means of drainage units. Plant for forming the microclimate includes casing, furnace with fire grate, gas-and-air heat exchanger, gas duct, exhaust branch pipes and fan; it is provided with receiving collector, lower air chamber, tubular heat exchangers, recirculating line with filter and air elevator made in form of passages taking the heat from external lateral surfaces of casing; vertical tubular heat exchangers provided with swirlers are mounted on inner sides of furnace wall forming crown portion of furnace heat exchanger and connecting the lower air chamber located under ash pan bottom with collector and exhaust branch pipes; recirculating line is provided with air humidifier and is used for coupling the air elevator with heated air receiving collector. Volume of lower air chamber exceeds that of upper air chamber of heated air receiving collector by two times. Swirler is made in form of metal band with cuts on edges of lateral sides at swirling pitch relative to tube diameter equal to 4-7. Furnace, ash pan and humidifier are provided with drainage units for removal of moisture.

EFFECT: possibility of creating and maintaining required climate in room in winter and in summer.

4 cl, 7 dwg

The invention relates to a method for cooling air flow and can be used in ventilation systems and air conditioning

The invention relates to processing systems compressed air through drying from condensed moisture using cold and can be applied in various industries

The invention relates to a technique, ventilation, and air conditioning

FIELD: heat-power engineering; manufacture of cheat multi-functional cold and heat generating plants.

SUBSTANCE: according to first version, proposed method includes heating the air in heat exchanger by burning fuel in furnace, preliminary heating of air at mixing with cold air and humidification of air before delivery of it to consumer. Preliminary heating of air is performed in air elevator; humidification of air is performed in circulating line; condensed moisture is removed from furnace, ash pan and humidifier by means of drainage units; for delivery of air to furnace, use is made of fan. According to second version, in summer season water or dry ice is placed in tubular heat exchanger; then air is fed to furnace by means of fan and to consumer through heat exchanger; moisture from furnace and ash pan is removed by means of drainage units. Plant for forming the microclimate includes casing, furnace with fire grate, gas-and-air heat exchanger, gas duct, exhaust branch pipes and fan; it is provided with receiving collector, lower air chamber, tubular heat exchangers, recirculating line with filter and air elevator made in form of passages taking the heat from external lateral surfaces of casing; vertical tubular heat exchangers provided with swirlers are mounted on inner sides of furnace wall forming crown portion of furnace heat exchanger and connecting the lower air chamber located under ash pan bottom with collector and exhaust branch pipes; recirculating line is provided with air humidifier and is used for coupling the air elevator with heated air receiving collector. Volume of lower air chamber exceeds that of upper air chamber of heated air receiving collector by two times. Swirler is made in form of metal band with cuts on edges of lateral sides at swirling pitch relative to tube diameter equal to 4-7. Furnace, ash pan and humidifier are provided with drainage units for removal of moisture.

EFFECT: possibility of creating and maintaining required climate in room in winter and in summer.

4 cl, 7 dwg

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