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 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

 

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 bundle of heat exchange tubes, and 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 is the lid, but occupy large areas and 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 collectors of the input and output of 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 heat exchange tubes. The material of heat exchanger tubes: 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 the mother of the La. Considerably higher power consumption of the fan drive due to the high aerodynamic resistance of the air when it travels through the bundle of heat exchange tubes. 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 hence energy loss. 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 manifolds, inlet and outlet gas pipe cameras and the actual beam finned heat exchange 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 in these conditions is X.

The objective of the invention is to increase the efficiency of the air cooler as in the manufacture and operation, as well as reducing energy 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 cooling medium, preferably air, into the body, which is made in the sectional view of the vessel with at least two heat exchange sections, each of which includes a chamber inlet and a chamber outlet for cooled gas containing tube plate with holes, into which are sealed ends located in a section of the series on its height forming a single beam of finned heat exchange tubes, which are laterally limited longitudinal walls of the frame section, each chamber gas inlet of the heat exchange sections of the apparatus has two up to seven pipes to attach to the manifold for supplying gas from a feed gas pipeline, and each chamber gas outlet sections of the apparatus has also respectively from two to seven pipes to attach to the manifold gas outlet provided on the output pipeline, and the total cross-sectional area in the light of the group of heat exchanger tubes of the beam, indicated by flow cooled the gas mainly from the nearest to him of the feeding pipe, 1.2-1.7 times higher than the cross-sectional area of the pipe in the zone of junction of the latter to the chamber gas inlet in the heat transfer section of the apparatus, while the tube bundle section of the apparatus taken from the condition, according to which the ratio of the total area of the inner heat transfer tube surface to the total volume of in-line space defined by the coefficientcomponents (98-412) [m-1].

While in the air cooler gas total cross-sectional area in the light of the group of heat exchanger tubes of the beam, indicated by the flow of the refrigerant gas mainly from the nearest to him, the feed pipe may be selected in proportion to the number and relative positioning of the feed nozzle width of the heat transfer section.

In addition, the air cooler gas constituent elements reported on the flow of the refrigerant gas, namely the collector supply and discharge of gas, the chamber entrance and exit of the refrigerant gas and the tubes may form a vessel operating under pressure.

In each section of the vessel, working under pressure, may be performed for cooling the natural gas fed to him with a working pressure from 5 MPa to 15 MPa, created by the compressor or compressors in the system compressor stations, pre is modestino of trunk gas pipelines. When two heat exchange sections of the device is made to pass 150000-500000 m3/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.

In the ABO gas vessels, working under pressure, may be performed on the working gas pressure, comprising 7,00-10,00 MPa, mainly of 7.36 MPa, 8,35 MPa and 9,82 MPa.

Each heat exchanger section may contain mostly the same camera input and one output camera cooled gas, reported on the flow of the cooled gas from the heat exchange tubes of the bundle.

AVO gas can be 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.

The apparatus can be made horizontal type with lower location of the fans under the heat exchange sections, and the heat transfer section disposed horizontally or with a slope comprising 0,002-0,009 in the axial direction of the RUB 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 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.

This spatial structure can be installed on 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 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 are made spatially trichotomy and intermediate - flat, V-shaped.

In the ABO gas under each section can be 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, components of 0,95 0,6 width of the heat transfer section, and diffuser casing of each of the fan is made in the 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, the diffuser covers all of the fans, established under section cover mostly all turned to him surface of the bundle of heat exchange tubes of the section.

While fans can be performed mostly two - or three-lobed, with adjustable angle of rotation of the blades and wheel fan mainly direct, direct, working on low-speed motor, preferably with a capacity of 2.5 to 12.0 kW and nominal speed 290-620 min-1.

In addition, AVO gas heat exchanger tubes can be divided by the height of the section discontinuously elements, and 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 heat exchange tubes arranged at the height of the panel ranges from 2 to 14, AV series hosted from 21 to 98 pipes with a nominal length of pipe section from 6 to 24 m, and in the beam pipe are located mainly in horizontal rows arranged one above the other with the displacement of the tubes in each row relative to the tubes in the adjacent height of the beam lines, and pipes are made mostly bi-metal, with an outer layer and fins from a material with a higher relative to the inner conductive layer mainly made of aluminum alloy.

In the ABO gas each camera input or output of the cooled gas may be in the form of a vessel operating under pressure, the length corresponding to the width of the heat transfer section of the apparatus and tube plate sealed with it the ends of the bundle of heat exchange tubes forms a front side of the camera, 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.

Each chamber entrance and exit of the refrigerant gas can be divided by the height of the reinforcing walls made of sheet metal with holes for the passage of gas. This increases the reliability of the cameras in conditions of high pressure and allows more uniformly distributed velocity field coming into the gas chamber.

Chamber gas inlet, at least two heat exchange sections may be attached to a common inlet manifold g is for mainly by means of flanges, and the chamber gas outlet, at least two heat exchange sections are attached to a common manifold exhaust gas mainly through flanges with education together with him, and with a bundle of heat exchange tubes, cameras, gas inlet and manifold gas supply vessel working under pressure.

In addition, AVO gas manifold gas supply and manifold gas outlet may be each made in the form of a vessel operating under pressure, comprising a cylindrical housing with end sections of double curvature and attached to the Central body, respectively, to the first input and the second outlet nozzles for connection to the pipeline, and distributed along the length of the casing pipe for connection respectively to the first chambers of the gas inlet, and the second with cameras gas outlet, at least two heat exchange sections of the device.

The inlet manifold for supplying gas and/or outlet manifold exhaust gas can be performed with cutting edges for joining, mainly by welding to the pipeline.

In addition, connections for connecting to cameras, gas inlet and gas outlet chambers can be fitted with flanges, primarily collar type, and connection flanges cameras input and output performed with pads.

Technically the result, provide the above set of essential features, is to increase the efficiency of the air cooling of the gas as in the manufacture and during operation due to the alignment of the velocity field coming from the collector supply of the refrigerant gas in the chamber gas inlet heat exchange sections, and the cooled gas from the chamber gas outlet through manifold exhaust gas in the pipeline, exceptions, hydraulic shocks in the mains supply gas in the heat exchange section and exit, ensure uniform gas distribution pipes heat transfer section and increase the efficiency of heat exchange with the cooling gas flowing through the pipes, which allows to optimize the efficiency of heat transfer with minimum metal.

The invention is illustrated by drawings, where

1 shows the apparatus for air cooling 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 mounting of finned heat exchange tubes in the tube plate;

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

figure 7 - spatial structure for installing th the exchange sections and fans AVO gas, side view;

on Fig the same, top view;

figure 9 - camera input (camera output) cooled gas AVO gas, side view;

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

figure 11 - the inlet manifold (exhaust) gas AVO gas, side view.

Air cooler (AVO) of gas contains fans 1 for applying an external cooling medium, preferably air (figure 1), in the case 2 of the apparatus. AVO gas made in the sectional view of the vessel with at least two heat exchange sections 3. Each heat exchanger section 3 includes camera input 4 and output 5 of the refrigerant gas (structurally output camera 5 is made as well as camera input 4), containing the tube plate 6. The tube plate 6 provided with holes 7, which are sealed ends located in a section of the series on its height forming a beam of 8 single finned heat exchange tubes 9. The sides of the tubes limited longitudinal walls 10 of the frame section 3. Each camera 4 input heat exchange sections 3 apparatus has from two to seven nozzles 11 for connection to the manifold for supplying gas 12 gas pipeline. Each camera 5 output sections 3 of the apparatus is also respectively from two to seven nozzles 13 for connection to the exhaust manifold 14 gas made structurally similar to the manifold for supplying gas 12. Collector gas outlet 14 reported on the exit of Gazoprovod the Ohm (not illustrated).

Manifold gas supply 12 and the collector gas outlet 14, the camera input 4 and output 5 of the refrigerant gas and the heat exchange tubes 9 form a vessel operating under pressure.

In each section of the vessel, working under pressure, made for cooling the natural gas fed to them with a working pressure from 5 MPa to 15 MPa, created by the compressor or compressors in the system compressor stations mainly of gas pipelines. When two heat transfer sections 3 the device is made to pass 150000-500000 m3/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 vessels working under pressure is performed at a working gas pressure, comprising 7,00-10,00 MPa, mainly of 7.36 MPa (75 kgf/cm2), 8,35 MPa (85 kgf/cm2and 9,82 MPa (100 kgf/cm2).

AVO gas 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 geophysical is yonibana territory.

AVO gas made of horizontal type with bottom location of the fan 1 under heat exchange sections 3 (figure 1 and figure 2). Heat transfer section 3 is placed horizontally (figure 3) or with a slope comprising from 0.002 to 0,009 in the axial direction of the pipe 9 to the manifold gas outlet 14 or manifold gas supply 12 and mounted on the supports, made in the form of a rod of the frame, forming a spatial metal or medulloblastoma design 15 frames heat exchange sections 3 installed on spatial structure on top (figure 2) and secured with the possibility of compensation of thermal deformations of the frame section.

Spatial structure 15 mounted on a Foundation (not shown) attached to them mainly anchor bolts 16 (Fig.7, Fig) and is made of rod elements - racks 17 and bolts 18. The crossbars 18 form a flat in the plan, mainly horizontal design with longitudinal 19 and 20 cross belts, forming the support sections 21 not less than two heat transfer section 3 of the apparatus and the compartments 22 is not less than four fan 1, and the rack 17 is made of angle 23 and intermediate 24 and the corner posts 23 are made spatially trichotomy, and the intermediate 24 - flat, V-shaped.

Under each section 3 is set from one to six voltage is s 1. Each fan is placed in a wind protective casing 25 containing the diffuser 26 and the collector smooth entrance 27. Thus a smooth manifold inlet 27 is made 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 inlet mouth 28 of the casing 25 in the transition zone of the reservoir 27 into the diffuser 26 is made with a diameter, comprising 0.6 to 0.95 to the width of the heat transfer section 3 and the diffuser 26 of the casing 25 of each of the fan 1 has in its upper part, in the zone of adjacency to the frame elements heat transfer section 3 with the circuit configuration of a trailing edge 29, which provides the possibility of acceding to the respective circuit elements of the framework of section 3. This diffuser casings 26 25 all fans 1, established under section 3, block mostly all turned to him surface of the beam 8 of the heat exchange tubes 9 of section 3.

The fan 1 is made mostly two - or three-lobed, with adjustable angle of rotation of the blades and wheel fan, mostly direct, direct, working on low-speed motor, preferably with a capacity of 2.5 to 12.0 kW and nominal speed 290-620 min-1.

The tubes 9 are separated by the height of the work discontinuously elements 30, and the longitudinal wall 10 of the frame section provided with a long wall displacers thread 31 of the external cooling medium, oriented in parallel to adjacent pipes 9 section 3 (figure 4 and 6). Each heat exchanger section 3 made in the form of mainly rectangular panel 32, and the number of rows of heat exchange tubes 9, located at the height of the panel 32, is from 4 to 12, and in a series hosted from 21 to 98 pipe 9 when the nominal length of the pipe section from 6 to 24 meters In beam 8 pipe 9 located mainly in horizontal rows 33, located one above another with an offset pipe 9 in each row relative to the pipe 9 in the adjacent height of the beam 8 ranks. Pipe 9 is made mostly of bimetallic (figure 5), with an outer layer and fins from a material with a higher relative to the inner conductive layer mainly made of aluminum alloy.

Each camera input 4 or 5 of the refrigerant gas (Fig.9) is made in the form of a vessel operating under pressure with a length corresponding to the width of the heat transfer section 3 of the apparatus, and tube sheet with 6 embedded in it the ends of the beam 8 of the heat exchange tube 9 forms a front side of the camera, and the rear side part of the camera is formed mainly by the external Board 34, which is made with holes 35 in alignment with the holes 7 in the tube plate 6.

Ka is Daya camera input 4 or 5 of the refrigerant gas can be divided by the height of the reinforcing walls 36, made of metal sheet with holes 37 for the passage of gas (figure 10). Partition 36 is welded to the walls of the chambers and are ribs.

Camera inputs 4, at least two heat exchange sections 3 are attached to a common manifold for supplying gas 12 by means of flanges 38 with education together with the pressure vessel. Camera output 5, at least two heat exchange sections 3 are attached to a common manifold gas outlet 14 is also mainly through the flanges 39 with education together with them and with the beam 8 of the heat exchange tubes 9, cameras, input 4 and inlet gas manifold 12 of a vessel operating under pressure.

Manifold gas supply 12 and the collector gas outlet 14 each made in the form of a vessel operating under pressure (11), comprising a cylindrical body 40 with end sections 41 of double curvature and attached to the Central body, respectively, to the first input 42, and the second output nozzles 43 for connection with the gas pipeline, and distributed along the length of casing pipes 44, 45 for connection respectively to the first 44 camera inputs 4, and for the second 45 - with cameras exit 5, at least two heat exchange sections 3 of the device.

The inlet 42 of the manifold gas supply 12 and/or the outlet 43 Kollek, the ora gas outlet 14 is made with cutting edges for joining, mainly welding, process piping (not shown) respectively supplying and discharging the refrigerant gas.

The nozzles 44 and 45 for connection with the camera input 4 and output 5 gas provided with flanges 46 and 47, predominantly collar type. Connection flanges 46 and 47 of the camera input 4 and output 5 is made with pads (not labeled).

Air cooler gas is as follows.

The cooled gas from the main pipeline is fed through a manifold for supplying gas 12 in the camera input 4 heat transfer section 3 under pressure 8,35 MPa and input after compression temperature 60°S. Of camera input 4 of the cooled gas is distributed over the heat exchange tubes 9. When the gas is coming into the camera entry through the feed pipe 11, are distributed over the group of heat exchange tubes 9, adjacent to the nearest mainly in the direction of the gas outlet 11, and reported on a cooled gas mainly with this pipe. Heat transfer section 3 of the apparatus, collected from finned tubes 9, blown by the cooling air flow with a temperature of 27°With pumped from the bottom of the axial fan 1 with drives from low-speed motors.

The cooling fluid (air)passing through the collector smooth entrance 27 and the diffuser 26, flows into the annular spaces of the heat transfer section 3. Passing through the annulus, surrounding the bimetallic finned heat exchange tubes 9, the air picks up heat from the heat exchange surfaces of the heated flowing inside the tubes cooled gas. After passing through the pipes and achladies, the gas to a temperature of 40°flows into the output chamber 5, where through the collector gas outlet 14 is fed into the main pipeline.

The total cross-sectional area of the group of heat exchange tubes 9 of the beam 8, adjacent to the nearest thereto the feed pipe 11 and is communicated to the flow of the refrigerant gas mainly with this nozzle, 1.2-1.7 times higher than the cross-sectional area of the pipe in the zone of junction of the latter to the camera input 4 in the heat exchange section 3 of the apparatus. When this occurs the reduction of hydraulic resistance and a uniform distribution of gas through pipes 9. Pressure loss for gas decrease with increasing operating pressure at the inlet. For example, when the inlet pressure of 7.36 MPa pressure loss for gas are 0,021 MPa, and at a pressure 9,82 MPa losses are 0,018 MPa.

The tubes 9 in section 3 are selected so that they provide optimal heat removal from the cooled gas.

Depending on seasonal fluctuations of ambient temperature used in the work or all the fans 1, feed the cooling air, is because only part of them. This improves the efficiency of the device.

Air cooler gas from the lower position of the fan operates as follows. When the flow of cooling fluid (air) as a bundle of finned heat exchange 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 increases 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.

We offer air cooler by optimizing the parameters of the heat exchange elements provides in the course of its operation, the efficiency of heat transfer and reduced pressure loss for gas and air. This leads to an increase in the heat output of the apparatus and thus to reduce energy consumption and metal consumption decrease due to more efficient use of the heat transfer surfaces.

In the process of making savings is by reducing the amount of consumables required for the manufacture of heat transfer surfaces due to their more efficient use is education. By reducing the size and weight of the heat transfer sections was possible to reduce both the size and weight of the supporting structures of the device.

By increasing the strength characteristics of structural apparatus of improved reliability of the apparatus as a whole and its parts working under pressure. Easy access to the heat exchange tubes, as well as the convenience of their inspection during operation and repair improves the maintainability of the device.

Thus, the inventive apparatus for air cooling gas is more economical in manufacture and in operation.

1. Air cooler gas, characterized in that it contains a fan for supplying external cooling medium, preferably air, into the body, which is made in the sectional view of the vessel with at least two heat exchange sections, each of which includes a chamber inlet and a chamber outlet for cooled gas containing tube plate with holes, into which are sealed ends located in a section of the series on its height, forming a single beam of finned heat exchange tubes, which are laterally limited longitudinal walls of the frame sections, with each chamber gas inlet of the heat exchange sections of the apparatus has from two to seven pipes to attach to the manifold for supplying gas from the surrounding gas, and each chamber gas outlet sections of the apparatus has also respectively from two to seven pipes to attach to the manifold gas outlet provided on the output pipeline, and the total cross-sectional area in the light of the group of heat exchanger tubes of the beam, indicated by the flow of the refrigerant gas mainly from the nearest to him of the feeding pipe, 1.2-1.7 times higher than the cross-sectional area of the pipe in the zone of junction of the latter to the chamber gas inlet in the heat transfer section of the apparatus, while the tube bundle section of the apparatus taken from the condition, according to which the ratio of the total area of the inner heat transfer tube surface to the total volume in-line space defined by the ratio

components (98-412) [m-1].

2. The apparatus according to claim 1, characterized in that the total cross-sectional area in the light of the group of heat exchanger tubes of the beam, indicated by the flow of the refrigerant gas mainly from the nearest to him of the feeding pipe, selected in proportion to the number and relative positioning of the feed nozzle width of the heat transfer section.

3. The apparatus according to claim 1, characterized in that the constituent elements reported on the flow of the refrigerant gas, namely the collector supply and discharge of gas, the chamber inlet and outlet of the cooled gas and the tubes form the vessel, working under pressure.

4. The apparatus according to claim 3, characterized in that in each section of the vessel, working under pressure, 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.

5. The apparatus according to claim 3, characterized in that the receptacles are made on the working gas pressure, comprising 7,00-10,00 MPa, mainly of 7.36; 8,35 and 9,82 MPa.

6. The apparatus according to claim 1, characterized in that each heat exchanger section contains predominantly single camera input and one output camera cooled gas, reported on the flow of the cooled gas from the heat exchange tubes of the bundle.

7. 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 is thew up to 7 points, and the speed the pressure of the wind, the corresponding IV geographic area for the geophysical division of the territory.

8. The apparatus according to claim 1, characterized in that it is made of horizontal type with lower location of the fans under the heat exchange sections, and the heat transfer section disposed horizontally or with a slope comprising 0,002-0,009 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 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.

9. The apparatus of claim 8, wherein the spatial structure 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.

1. 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 manifold a smooth entrance to the cone diameter, comprising 0.6 to 0.95 to the width of the heat transfer section, and diffuser casing of each of the fans has its upper parts 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, the diffuser covers all of the fans, established under section cover mostly all turned to him surface of the bundle of heat exchange tubes of the section.

11. The apparatus according to claim 10, characterized in that the fans are made mostly two - or three-bladed with adjustable angle of rotation of the blades and wheel fan mainly direct, direct, working on low-speed motor preference is sustained fashion with a capacity of 2.5 to 12.0 kW and nominal speed 290-620 min -1.

12. The apparatus according to claim 1, characterized in that the tubes are separated by the height of the section discontinuously elements, and 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 heat exchange tubes arranged at the height of the panel ranges from 2 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 beam pipes are placed mainly in horizontal rows arranged one above the other with the displacement of the tubes in each row relative to the tubes in the adjacent height of the beam lines, and pipes are made mostly 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 is made in the form of a vessel operating under pressure, the length corresponding to the width of the heat transfer section of the apparatus and tube plate sealed with it the ends of heat exchange tubes of the beam forms a front side of the camera, and the rear side part of the camera spans the Ana predominantly external Board, which is made with holes aligned with the holes in the tube plate.

14. The apparatus according to item 13, wherein each chamber entrance and exit of the refrigerant gas separated by the height of the reinforcing walls made of sheet metal with holes for the passage of gas.

15. The apparatus according to 14, characterized in that the chamber gas inlet, at least two heat exchange sections are attached to a common manifold for supplying gas mainly through the flanges and the chamber gas outlet, at least two heat exchange sections are attached to a common manifold exhaust gas mainly through flanges with education together with him, and with a bundle of heat exchange tubes, cameras, gas inlet and manifold gas supply vessel working under pressure.

16. The apparatus according to claim 1, characterized in that the manifold gas supply and manifold gas outlet each made in the form of a vessel operating under pressure, comprising a cylindrical housing with end sections of double curvature and attached to the Central body, respectively, to the first input and the second outlet nozzles for connection to the pipeline and distributed along the length of the casing pipe for connection respectively to the first chambers of the gas inlet, and the second with cameras gas outlet at least two heat exchange sections of the device.

17. The apparatus according to item 16, characterized in that the inlet manifold for supplying gas and/or outlet manifold gas outlet is made with cutting edges for joining mainly by welding to the pipeline.

18. The apparatus according to item 16, characterized in that the nozzles of the manifold inlet or gas outlet for connection respectively with the chambers of the inlet or gas outlet chambers fitted with flanges predominantly collar type, and the connection flanges of the nozzle chamber inlet and gas outlet are made with pads.



 

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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

Air cooler // 2075714
The invention relates to heat exchange apparatus in which heat exchanging medium, one of which the air is separated by a heat transfer wall, and can be used in gas processing, chemical, petrochemical, power and other industries, in particular as heat exchangers gas compressor stations, chillers, boilers, gas fractionation plants, etc

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

The invention relates to techniques for ventilation and air-conditioning, in particular to a device for heat-moisture treatment of air

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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