CN221172631U - Evaporator with built-in gas-liquid separation device - Google Patents
Evaporator with built-in gas-liquid separation device Download PDFInfo
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- CN221172631U CN221172631U CN202322867364.7U CN202322867364U CN221172631U CN 221172631 U CN221172631 U CN 221172631U CN 202322867364 U CN202322867364 U CN 202322867364U CN 221172631 U CN221172631 U CN 221172631U
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- 239000007788 liquid Substances 0.000 title claims abstract description 134
- 238000000926 separation method Methods 0.000 title claims abstract description 19
- 239000003507 refrigerant Substances 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 238000005192 partition Methods 0.000 claims description 23
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 abstract description 9
- 230000008020 evaporation Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to the field of evaporators, and provides an evaporator with a built-in gas-liquid separation device. The heat exchange tube comprises a heat exchange tube body, a heat exchange tube and a refrigerant outlet, wherein a liquid homogenizing component is arranged in the heat exchange tube body, a liquid baffle is arranged in the heat exchange tube body and is positioned between the heat exchange tube component and the refrigerant outlet, a plurality of layers of liquid flow baffles are arranged between the liquid baffle and the heat exchange tube component, and the refrigerant is uniformly distributed in the heat exchange tube body through the liquid homogenizing component, so that heat exchange unevenness caused by severe local evaporation is avoided; the liquid drops contained in the evaporating gas are blocked by the broken line channel formed by the liquid flow baffles, the gas subjected to primary gas-liquid separation is blocked and separated again by the liquid baffle, the liquid drops are blocked and guided to fall by the slope panel, the liquid drops in the gaseous refrigerant can be effectively separated, and damage to the compressor is avoided.
Description
Technical Field
The utility model relates to the field of evaporators, in particular to an evaporator with a built-in gas-liquid separation device.
Background
Flooded evaporators are widely used in refrigeration systems because of their high heat transfer efficiency. The working principle of the flooded evaporator is that the refrigerant flows outside the heat exchange tube, the secondary refrigerant flows in the tube, the refrigerant absorbs the heat of the secondary refrigerant to evaporate, the evaporated gas is sucked by the compressor to be compressed, and then the gas enters the next refrigeration cycle. The refrigerant liquid is strongly boiled in the evaporator, the evaporated refrigerant gas inevitably entrains liquid drops, if the liquid drops are sucked by the compressor, the liquid drops are brought into the cylinder of the piston compressor, and are forced by the piston to generate strong impact in the cylinder due to incompressibility of the liquid, so that the machine body is severely vibrated and emits great impact sound, and a piston rod, a connecting rod screw, a crankshaft and the like are broken or damage the cylinder cover and the piston; meanwhile, abrasion among the rotors is accelerated, and the rotor spiral line is likely to be damaged; the introduction of the refrigerant into the screw compressor also dilutes the refrigerant, and deteriorates lubrication and sealing performance between compressor components.
Therefore, the evaporated refrigerant gas must be sufficiently separated into gas and liquid, thereby securing safe operation of the compressor. The existing flooded evaporator is only provided with a liquid inlet baffle at the refrigerant outlet, and can not effectively avoid liquid drops from entering the compressor.
Disclosure of Invention
In order to avoid damage to a compressor caused by liquid drops contained in gasified refrigerant, the utility model aims to provide an evaporator with built-in gas-liquid separation.
The technical scheme adopted by the utility model is as follows:
The evaporator with the built-in gas-liquid separation device comprises a horizontal heat exchange cylinder, wherein two sides of the heat exchange cylinder are respectively provided with a seal head assembly, the seal head assemblies are connected with two end faces of the heat exchange cylinder through flanges, a heat exchange pipe assembly is arranged in the heat exchange cylinder, the heat exchange pipe assembly is fixedly supported in the heat exchange cylinder through a plurality of uniformly distributed heat exchange pipe supporting plates, a water inlet pipe and a water outlet pipe are arranged on the seal head assembly at one end, hot water is input into the water inlet pipe, a partition plate is respectively arranged in the seal head assembly, the flow direction of the hot water in a heat pipe is changed by the partition plate in the seal head assembly, and the hot water after heat exchange flows out from the water outlet pipe; the liquid inlet pipe is installed to the bottom of heat exchange barrel, and the top of heat exchange barrel is equipped with the refrigerant export, and the refrigerant gets into in the heat exchange barrel from the liquid inlet pipe, with heat exchange evaporation is managed in the heat exchange, and the gas after the evaporation is followed the export of refrigerant is discharged, install the fender liquid board in the heat exchange barrel, it is located between heat exchange tube assembly and the refrigerant export to keep off the liquid board. The liquid baffle extends along the length direction of the heat exchange barrel, the liquid baffle comprises a horizontal plate and slope panels with two sides bent upwards, the upper edge of the slope panels is connected with the inner wall of the top of the heat exchange barrel, the liquid baffle isolates the refrigerant and the refrigerant outlet in the heat exchange barrel, a plurality of air ports uniformly distributed along the length direction are arranged at the top edges of the two slope panels of the liquid baffle, and the evaporated refrigerant enters the refrigerant outlet through the air ports.
Further, a plurality of layers of liquid flow baffles are arranged between the liquid baffle and the heat exchange tube assembly, the liquid flow baffles extend along the length direction of the heat exchange tube body, the liquid flow baffles on adjacent layers are arranged in a staggered mode, the projection parts of the liquid flow baffles on the upper layer and the liquid flow baffles on the lower layer in the vertical direction are overlapped, and a folding line channel in the vertical direction is formed between the refrigerant in the heat exchange tube body and the liquid baffle through the plurality of layers of liquid flow baffles.
Further, the liquid flow baffle is a horizontal plate or a wave-shaped plate or a sawtooth-shaped plate.
Further, the liquid baffle and the liquid flow baffle are positioned above the liquid level of the refrigerant.
Further, install the samming subassembly in the heat exchange barrel, samming subassembly is both ends confined side pipe, and the samming subassembly is on a parallel with the heat exchange tube subassembly and is located the below of heat exchange tube subassembly, and the feed liquor pipe is connected at samming subassembly middle part, and the top of samming subassembly is equipped with the drain hole of a plurality of equipartitions.
Further, the heat exchange tube assembly comprises a plurality of parallel heat exchange tubes, and two ends of each heat exchange tube come in and go out of the corresponding seal heads.
Further, the seal head assembly comprises a tube plate and a seal head, wherein the tube plate and the seal head form a closed cavity, the tube plate is positioned between the seal head and the heat exchange cylinder, and the tube plate is provided with a mounting hole matched with the heat exchange tube; the right end socket is internally provided with a vertical partition plate and an inclined partition plate, the vertical partition plate divides the right end socket into a front cavity and a rear cavity, the water inlet pipe and the water outlet pipe are communicated with the front cavity, and the inclined partition plate divides the water inlet pipe and the water outlet pipe in the front cavity; a horizontal partition plate is arranged in the left end socket assembly and divides the left end socket into an upper cavity and a lower cavity; and heat exchange pipes are connected in all the chambers separated by the partition plates.
Further, the liquid inlet pipe is provided with a bypass pipe.
Still further, the drain valve is installed to the bottom of each head subassembly, and the top of each head subassembly is equipped with the discharge valve.
After the technical scheme is adopted, the beneficial effects of the utility model are as follows:
The refrigerant is uniformly distributed in the heat exchange cylinder through the liquid homogenizing component, so that uneven heat exchange caused by severe local evaporation is avoided; the liquid drops contained in the evaporating gas are blocked by the broken line channel formed by the liquid flow baffles, the gas subjected to primary gas-liquid separation is blocked and separated again by the liquid baffle, the liquid drops are blocked and guided to fall by the slope panel, the liquid drops in the gaseous refrigerant can be effectively separated, and damage to the compressor is avoided.
Drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is a cross-sectional view of the present utility model.
Fig. 3 is a schematic structural diagram of the right side seal head.
Fig. 4 is a schematic structural diagram of the left side seal head.
Detailed Description
The following detailed description of the utility model refers to the accompanying drawings.
As shown in fig. 1-2, an evaporator with a built-in gas-liquid separation device is composed of a heat exchange cylinder 1, end socket assemblies 2 on two sides of the heat exchange cylinder, a heat exchange tube 3 and a gas-liquid separation structure, wherein a refrigerant exchanges heat with circulating water passing through the heat exchange tube 3 in the heat exchange cylinder 1 and evaporates.
The heat exchange cylinder 1 is internally provided with a horizontal metal cylinder, and the two sides of the metal cylinder are provided with seal head assemblies 2 through flanges to form a closed cylinder. The bottom of the heat exchange barrel 1 is welded and provided with a liquid inlet pipe 4, the bottom of the inner side of the heat exchange barrel 1 is provided with a liquid homogenizing component 5, the liquid inlet pipe 4 is communicated with the liquid homogenizing component 5, the liquid homogenizing component 5 is a square pipe with two closed ends, the liquid homogenizing component 5 extends along the length direction of the heat exchange barrel 1, the middle part of the liquid homogenizing component 5 is connected with the liquid inlet pipe, and the top of the liquid homogenizing component 5 is provided with a plurality of uniformly distributed liquid outlet holes; the refrigerant enters the liquid homogenizing component 5 from the liquid inlet pipe 4, and the liquid homogenizing component 5 uniformly inlets liquid at the bottom of the heat exchange cylinder 2. The liquid inlet pipe 4 is provided with a bypass pipe for adjusting the liquid inlet amount. The center of the top of the heat exchange cylinder 1 is provided with a refrigerant outlet 6.
The heat exchange tubes 3 are a plurality of parallel horizontal tubes, the heat exchange tubes 3 are positioned above the liquid homogenizing component 5, and two ends of the heat exchange tubes 3 are inserted into the end socket component 2. Install inlet tube 7 and outlet pipe 8 on the head subassembly on right side, through set up the baffle in the head subassembly inboard, separate the head subassembly into a plurality of switching-over cavity for the hot water that inlet tube 7 got into passes through all heat exchange tubes 3 in proper order after a plurality of switching-over, finally discharges from outlet pipe 8, accomplishes the heat transfer cycle.
The seal head assembly 2 consists of a tube plate 21, a seal head 22 and a baffle plate, wherein the tube plate 21 and the seal head 22 form a closed cavity, the tube plate 21 is positioned between the seal head 22 and the heat exchange cylinder 1, and the tube plate 21 is provided with a mounting hole matched with the heat exchange tube 3 for connecting with the heat exchange tube 3; a vertical partition plate 23 and an inclined partition plate 24 are arranged in the right end socket assembly, the vertical partition plate 23 divides the right end socket assembly into a front cavity and a rear cavity, the water inlet pipe 7 and the water outlet pipe 8 are communicated with the front cavity, and the inclined partition plate 24 divides the front cavity into a right lower cavity and a right upper cavity which are respectively communicated with the water inlet pipe 7 and the water outlet pipe 8; a horizontal partition plate 25 is arranged in the left end socket assembly, and the horizontal partition plate 25 divides the left end socket into an upper cavity and a lower cavity; and heat exchange tubes are connected in the chambers separated by the partition boards.
The circulating heat exchange path of the hot water in the technical scheme is as follows: the hot water enters a lower right cavity corresponding to the water inlet pipe from the water inlet pipe 7, enters a lower cavity of the left end socket assembly through a heat exchange pipe communicated with the cavity, enters other heat exchange pipes communicated with the lower cavity through reversing of the lower cavity, returns to a rear cavity of the right end socket assembly from the heat exchange pipe, enters an upper cavity of the left end socket assembly through reversing of the rear cavity and the heat exchange pipe communicated with the rear cavity, finally returns to an upper right cavity of the right end socket assembly through the heat exchange pipe communicated with the upper cavity, and is discharged through a water outlet pipe 8 communicated with the upper right cavity.
The refrigerant is evenly fed with liquid through the liquid homogenizing component 5 and submerges the heat exchange tube 3, the refrigerant exchanges heat with hot water in the heat exchange tube 3 and is subjected to severe evaporation, and the refrigerant steam generated after evaporation is discharged through a refrigerant outlet at the top of the heat exchange cylinder body and inevitably contains liquid drops due to severe evaporation, so that the subsequent compressor is damaged. The technical scheme is that a liquid baffle 9 and a plurality of liquid flow baffles 10 are arranged in a heat exchange cylinder, and the liquid baffle 9 and the liquid flow baffles 10 are positioned above the liquid level of the refrigerant.
A liquid baffle 9 is provided between the heat exchange tube 3 and the refrigerant outlet 6. The liquid baffle 9 extends along the length direction of the heat exchange barrel, the liquid baffle 9 comprises a horizontal plate 91 and sloping plates 92 which are bent upwards from two sides of the horizontal plate, the upper edge of each sloping plate 92 is welded with the inner wall of the top of the heat exchange barrel 1, the liquid baffle 9 isolates the refrigerant and the refrigerant outlet in the heat exchange barrel, a plurality of air ports 93 which are uniformly distributed along the length direction are arranged at the top edges of the two sloping plates 92 of the liquid baffle 9, and the evaporated refrigerant conveniently enters the refrigerant outlet 6 through the air ports 93.
The multilayer liquid flow baffle 10 is located between baffle 9 and heat exchange tube 3, and liquid flow baffle 10 extends along heat exchange tube body length direction equally, and liquid flow baffle 10 is horizontal plate or wave template or sawtooth shaped plate, misplaces between the liquid flow baffle 10 of adjacent layer, and upper liquid flow baffle and lower liquid flow baffle's projection in vertical direction partially coincide, and multilayer liquid flow baffle 10 forms the broken line passageway of vertical direction between refrigerant and baffle 9 in the heat exchange tube body.
The evaporated refrigerant passes through the broken line channel formed by the multi-layer liquid flow baffle plate 10, continuously impacts the liquid flow baffle plate 10 in the upward movement process, liquid drops are intercepted and dropped at the liquid flow baffle plate 10, the primarily separated steam and a small amount of liquid drops are intercepted again at the liquid baffle plate 9, the liquid drops are separated, and the steam enters the refrigerant outlet 6 from the air port.
The bottom of each seal head assembly 2 is respectively provided with a blow-down valve 11, and the top of each seal head assembly 2 is provided with an exhaust valve 12, which is used for exhausting internal gas and heat exchange water after heat exchange is completed.
Claims (9)
1. The evaporator with the built-in gas-liquid separation device comprises a horizontal heat exchange cylinder, wherein two sides of the heat exchange cylinder are respectively provided with a seal head assembly, the seal head assemblies are connected with two end faces of the heat exchange cylinder through flanges, a heat exchange pipe assembly is arranged in the heat exchange cylinder, the heat exchange pipe assembly is fixedly supported in the heat exchange cylinder through a plurality of uniformly distributed heat exchange pipe supporting plates, a water inlet pipe and a water outlet pipe are arranged on the seal head assembly at one end, hot water is input into the water inlet pipe, a partition plate is respectively arranged in the seal head assembly, the flow direction of the hot water in a heat pipe is changed by the partition plate in the seal head assembly, and the hot water after heat exchange flows out from the water outlet pipe; the liquid inlet pipe is arranged at the bottom of the heat exchange barrel, the refrigerant enters the heat exchange barrel from the liquid inlet pipe and exchanges heat with the heat exchange pipe to evaporate, and the evaporated gas is discharged from the refrigerant outlet, and the liquid baffle is arranged in the heat exchange barrel and positioned between the heat exchange pipe assembly and the refrigerant outlet; the liquid baffle extends along the length direction of the heat exchange barrel, the liquid baffle comprises a horizontal plate and slope panels with two sides bent upwards, the upper edge of the slope panels is connected with the inner wall of the top of the heat exchange barrel, the liquid baffle isolates the refrigerant and the refrigerant outlet in the heat exchange barrel, a plurality of air ports uniformly distributed along the length direction are arranged at the top edges of the two slope panels of the liquid baffle, and the evaporated refrigerant enters the refrigerant outlet through the air ports.
2. The evaporator with the built-in gas-liquid separation device according to claim 1, wherein a plurality of layers of liquid flow baffles are arranged between the liquid baffle and the heat exchange tube assembly, the liquid flow baffles extend along the length direction of the heat exchange tube body, the liquid flow baffles of adjacent layers are arranged in a staggered mode, the projection part of the upper layer of liquid flow baffles and the projection part of the lower layer of liquid flow baffles in the vertical direction are overlapped, and a folding line channel in the vertical direction is formed between the refrigerant in the heat exchange tube body and the liquid baffle by the plurality of layers of liquid flow baffles.
3. An evaporator incorporating a gas-liquid separation apparatus as set forth in claim 2 wherein said flow baffle is a horizontal plate or a wave-shaped plate or a zigzag-shaped plate.
4. An evaporator incorporating a gas-liquid separation apparatus as set forth in claim 2 wherein said liquid baffle and liquid flow baffle are positioned above the level of refrigerant.
5. The evaporator with the built-in gas-liquid separation device according to claim 1, wherein a liquid homogenizing component is arranged in the heat exchange cylinder, the liquid homogenizing component is a square tube with two closed ends, the liquid homogenizing component is parallel to the heat exchange tube component and is positioned below the heat exchange tube component, the middle part of the liquid homogenizing component is connected with a liquid inlet tube, and a plurality of uniformly distributed liquid outlet holes are formed in the top of the liquid homogenizing component.
6. The evaporator with built-in gas-liquid separation device according to claim 1, wherein the heat exchange tube assembly comprises a plurality of parallel heat exchange tubes, and two ends of the heat exchange tubes are led into and out of the corresponding seal heads.
7. The evaporator with the built-in gas-liquid separation device according to claim 5, wherein the seal head assembly comprises a tube plate and a seal head, the tube plate and the seal head form a closed cavity, the tube plate is positioned between the seal head and the heat exchange cylinder, and the tube plate is provided with a mounting hole matched with the heat exchange tube; the right end socket is internally provided with a vertical partition plate and an inclined partition plate, the vertical partition plate divides the right end socket into a front cavity and a rear cavity, the water inlet pipe and the water outlet pipe are communicated with the front cavity, and the inclined partition plate divides the water inlet pipe and the water outlet pipe in the front cavity; a horizontal partition plate is arranged in the left end socket assembly and divides the left end socket into an upper cavity and a lower cavity; and heat exchange pipes are connected in all the chambers separated by the partition plates.
8. The evaporator with built-in gas-liquid separation apparatus according to claim 1, wherein the liquid inlet pipe is provided with a bypass pipe.
9. The evaporator with built-in gas-liquid separation device according to claim 1, wherein a drain valve is installed at the bottom of each head assembly, and an exhaust valve is installed at the top of each head assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322867364.7U CN221172631U (en) | 2023-10-25 | 2023-10-25 | Evaporator with built-in gas-liquid separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322867364.7U CN221172631U (en) | 2023-10-25 | 2023-10-25 | Evaporator with built-in gas-liquid separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221172631U true CN221172631U (en) | 2024-06-18 |
Family
ID=91459880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322867364.7U Active CN221172631U (en) | 2023-10-25 | 2023-10-25 | Evaporator with built-in gas-liquid separation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221172631U (en) |
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2023
- 2023-10-25 CN CN202322867364.7U patent/CN221172631U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |