CN221123119U - Compact phase-change heat exchanger - Google Patents
Compact phase-change heat exchanger Download PDFInfo
- Publication number
- CN221123119U CN221123119U CN202322657098.5U CN202322657098U CN221123119U CN 221123119 U CN221123119 U CN 221123119U CN 202322657098 U CN202322657098 U CN 202322657098U CN 221123119 U CN221123119 U CN 221123119U
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- China
- Prior art keywords
- box plate
- inner box
- gear oil
- phase
- pipe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000012208 gear oil Substances 0.000 claims abstract description 42
- 238000001816 cooling Methods 0.000 claims abstract description 40
- 239000003507 refrigerant Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 239000012071 phase Substances 0.000 abstract description 26
- 239000007791 liquid phase Substances 0.000 abstract description 15
- 239000012530 fluid Substances 0.000 abstract description 14
- 239000003921 oil Substances 0.000 description 10
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 241000274582 Pycnanthus angolensis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a compact phase change heat exchanger, which comprises an inner box plate, wherein a gear oil inlet pipe is arranged on the left side wall of the inner box plate, a gear oil outlet pipe is arranged on the right side wall of the inner box plate, a heat-conducting pipe group is arranged in a hollow cavity of the inner box plate, two ends of the heat-conducting pipe group are respectively connected with the gear oil inlet pipe and the gear oil outlet pipe, a refrigerant medium is filled in the hollow cavity of the inner box plate, a liquid phase inlet pipe is connected on the bottom wall of the inner box plate in a penetrating way, and a vapor-liquid phase outlet pipe is connected on the top wall in a penetrating way. The refrigerant medium filled in the inner box body flows through the heat-conducting tube group under the drive of the two-phase pump, the heat-conducting tube group is sequentially connected with the gear oil inlet tube and the gear oil outlet tube and used for conveying the high Wen Youye pumped from the gear box, the refrigerant medium is directly evaporated after absorbing heat, the refrigerant medium is changed into a vapor-liquid two-phase state from a liquid phase, the two-phase fluid passes through the condenser to release heat, and the vapor-liquid two-phase fluid is changed into a liquid state and then enters the two-phase pump, so that the reciprocating circulation is realized, and the purpose of efficiently exchanging heat and cooling the gear oil is achieved.
Description
Technical Field
The utility model relates to the technical field of gear oil cooling, in particular to a compact phase change heat exchanger.
Background
When the wind generating set generates electricity, in the running process of the gear box in the cabin, as the oxidation and the tooth surface pitting corrosion of the oil product are aggravated under the high-temperature environment, the running efficiency of the gear box is gradually reduced, the heating coefficient of the gear box is continuously increased, the gear box generally adopts an air cooling oil cooling mode, oil in the gear box is conveyed to the external condenser of the cabin by an oil pump for air cooling and cooling, and the cooled oil flows back into the gear box.
But during use the following drawbacks exist: the cooling fins on the cabin body condenser are required to meet the oil cooling requirement, the condenser with larger occupied space is required to be installed outside the cabin body, so that the heat exchange area of the cooling fins is increased, the area of the condenser installed by the external bracket of the cabin body is increased, the installation difficulty of the high-altitude cabin body is increased, potential safety hazards exist, in addition, flying dust and flying cotton fibers are easily attached to the cooling fins of the condenser, the ventilation cooling capacity of the cooling fins is reduced, the cooling effect of the gear oil is affected, and therefore, the cooling requirement of a gear box of a unit cannot be met in a traditional gearbox cooling mode.
Disclosure of utility model
The utility model aims to provide a compact phase change heat exchanger which is used for solving the problem of poor cooling effect of gear oil in the prior art.
The aim of the utility model can be achieved by the following technical scheme:
the compact phase change heat exchanger comprises an inner box plate, wherein a gear oil inlet pipe is arranged on the left side wall of the inner box plate, a gear oil outlet pipe is arranged on the right side wall of the inner box plate, a heat-conducting pipe group is arranged in a hollow cavity of the inner box plate, and two ends of the heat-conducting pipe group are respectively connected with the gear oil inlet pipe and the gear oil outlet pipe;
The hollow cavity of the inner box plate is filled with a refrigerant medium, the bottom wall of the inner box plate is connected with a liquid inlet pipe in a through mode, and the top wall of the inner box plate is connected with a vapor-liquid outlet pipe in a through mode.
As a further scheme of the utility model: the heat conduction pipe group comprises a plurality of U-shaped pipe fittings which are connected in sequence.
As a further scheme of the utility model: an outer box plate is arranged outside the inner box plate, and an air cooling cavity is formed between the inner box plate and the outer box plate.
As a further scheme of the utility model: an air inlet pipe communicated with the air cooling cavity is arranged on the left side wall of the outer box plate, and an air outlet pipe communicated with the air cooling cavity is arranged on the right side wall.
As a further scheme of the utility model: the upper side of outer boxboard is provided with the back flow, the one end fixed connection of back flow gear fluid advances the pipe, and the other end fixed connection gear fluid exit tube, just be provided with the backwash pump on the back flow.
The utility model has the beneficial effects that:
(1) The refrigerant medium filled in the inner box body flows through the heat-conducting tube group under the drive of the two-phase pump, the heat-conducting tube group is sequentially connected with the gear oil inlet tube and the gear oil outlet tube and is used for conveying the high Wen Youye pumped from the gear box, the refrigerant medium is directly evaporated after absorbing heat, the refrigerant medium is changed into a vapor-liquid two-phase state from a liquid phase, the two-phase fluid releases heat through the condenser, and the vapor-liquid two-phase fluid is changed into a liquid state and then enters the two-phase pump, so that the reciprocating circulation is realized, and the purpose of efficiently exchanging heat and cooling the gear oil is achieved;
(2) The U-shaped pipe fittings sequentially connected form the heat-conducting pipe group, a return pipe is arranged between the gear oil inlet pipe and the gear oil outlet pipe, the height Wen Youye is conveyed by the heat exchange of the refrigerant medium, the contact area with the refrigerant medium can be increased, the heat exchange efficiency is improved, and the U-shaped pipe fittings form the heat-conducting pipe group to reduce the area of the phase-change heat exchanger, so that the installation space occupied by the phase-change heat exchanger is reduced under the condition of meeting the requirement of circulating heat exchange, cooling and oil conveying, and the installation requirement of the compact phase-change heat exchanger is met;
(3) An air cooling cavity is formed between the inner box body and the outer box plate, and in the process of conveying high-temperature gear oil into the hollow cavity of the inner box plate, the refrigerant medium filled in the inner box body exchanges heat and heats up, the inner box plate is wrapped by the arranged air cooling cavity, and the inner box body can be cooled by air cooling, so that the load of the cabin outer condenser for circularly treating the vapor-liquid phase refrigerant medium is reduced.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a gear oil inlet pipe and a gear oil outlet pipe respectively connected with a heat conducting pipe group and a return pipe;
fig. 3 is a schematic diagram of an application connection of the present utility model.
In the figure: 1. an inner box plate; 2. a gear oil inlet pipe; 3. a gear oil outlet pipe; 4. a heat conduction pipe group; 5. a liquid phase inlet pipe; 6. a vapor-liquid phase outlet pipe; 7. a return pipe; 8. a reflux pump; 9. an outer case plate; 10. an air cooling cavity; 11. an air inlet pipe; 12. and (5) an air outlet pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model; in the description of the present utility model, "a plurality of" means at least two, for example, two, three, etc., unless explicitly defined otherwise.
Referring to fig. 1, the utility model relates to a compact phase change heat exchanger, which comprises an inner tank plate 1, wherein a gear oil inlet pipe 2 is arranged on the left side wall of the inner tank plate 1, a gear oil outlet pipe 3 is arranged on the right side wall of the inner tank plate, a heat conducting pipe group 4 is arranged in a hollow cavity of the inner tank plate 1, two ends of the heat conducting pipe group 4 are respectively connected with the gear oil inlet pipe 2 and the gear oil outlet pipe 3, refrigerant medium is filled in the hollow cavity of the inner tank plate 1, a liquid phase inlet pipe 5 is connected on the bottom wall of the inner tank plate 1 in a penetrating way, and a vapor-liquid phase outlet pipe 6 is connected on the top wall in a penetrating way.
In the process of generating electricity in the cabin, the phase-change heat exchanger is arranged in the cabin, the phase-change heat exchanger comprises an inner box body which is respectively connected with a gear box through a gear oil inlet pipe 2 and a gear oil outlet pipe 3, an oil pump is arranged on the gear oil inlet pipe 2, the inner box body is connected with a two-phase pump through a liquid phase inlet pipe 5 and is connected with a condenser arranged outside the cabin through a vapor-liquid phase outlet pipe 6, the condenser is connected with the two-phase pump through a pipeline, so that refrigerant media filled in the inner box body flow through a heat conducting pipe group 4 under the driving of the two-phase pump, the heat conducting pipe group 4 is sequentially connected with the gear oil inlet pipe 2 and the gear oil outlet pipe 3 and is used for conveying a height Wen Youye extracted from the gear box, the refrigerant media is directly evaporated after absorbing heat, the refrigerant media is changed into a vapor-liquid two-phase state from the liquid phase state through the condenser, the two-phase fluid releases heat, and the two-phase fluid is changed into a liquid state from the vapor-liquid phase state through the vapor-liquid phase state, and then enters the two-phase pump, and the two-phase pump is in a reciprocating circulation mode, thereby achieving the purpose of high-efficiency heat exchange and cooling of the gear oil.
In the using process of the phase-change heat exchanger, the phase-change heat exchanger is additionally arranged between the internal gear box of the cabin body and the external condenser of the cabin body, and compared with the traditional condenser which directly exchanges heat and cools high-temperature gear oil, the phase-change heat exchanger has the advantages that the vapor-liquid fluid evaporated by the phase-change heat exchanger is subjected to heat exchange and cooling through the condenser, the installation occupied space of the condenser can be reduced, the size of radiating fins on the condenser is reduced, and the volume is smaller than that of the traditional condenser under the same heat exchange power requirement.
When the refrigerant medium filled in the hollow cavity of the inner box body contacts the heat conduction pipe group 4 for heat exchange, the evaporation phase change efficiency of the refrigerant medium can be improved, wherein the refrigerant medium used for phase change is nontoxic, does not explode, has no corrosion effect on metals and nonmetal, is easy to perceive when in leakage, has stable chemical property, has no destructiveness on lubricating oil, has higher evaporation latent heat, is harmless to the environment, can stop the leakage risk of the refrigerant medium, and is safe and reliable.
In this embodiment, as shown in fig. 2, the heat-conducting tube group 4 includes a plurality of U-shaped tubes connected in sequence, where the plurality of U-shaped tubes connected in sequence form the heat-conducting tube group 4, which can increase the contact area with the refrigerant medium and improve the heat exchange efficiency, and the U-shaped tubes form the heat-conducting tube group 4, which can reduce the area of the phase-change heat exchanger according to the present application, so as to reduce the installation space occupied by the phase-change heat exchanger and meet the installation requirement of the compact phase-change heat exchanger under the condition of meeting the requirement of circulating heat exchange, cooling and oil transportation.
In this embodiment, as shown in fig. 1, an outer box plate 9 is disposed outside the inner box plate 1, an air cooling cavity 10 is enclosed between the inner box plate 1 and the outer box plate 9, and in the process of conveying high-temperature gear oil into the hollow cavity of the inner box plate 1, the refrigerant medium filled in the inner box body exchanges heat and heats up, the set air cooling cavity 10 wraps the inner box plate 1, so that the inner box body can be cooled by air cooling, and the load of the external condenser for circularly processing the vapor-liquid phase refrigerant medium is reduced.
Further, as shown in fig. 1, an air inlet pipe 11 communicated with the air cooling cavity 10 is arranged on the left side wall of the outer box plate 9, an air outlet pipe 12 communicated with the air cooling cavity 10 is arranged on the right side wall, and air flow is conveniently and circularly conveyed into the air cooling cavity 10 through the air inlet pipe 11 and the air outlet pipe 12, so that the air cooling treatment efficiency of the inner box plate 1 is improved.
Further, as shown in fig. 1, the top of outer case board 9 is provided with back flow 7, and the one end fixed connection gear fluid of back flow 7 advances pipe 2, and the other end fixed connection gear fluid exit tube 3, and is provided with backwash pump 8 on the back flow 7, through setting up back flow 7 between gear fluid advances pipe 2 and gear fluid exit tube 3, high Wen Youye carries through refrigerant medium heat transfer, in order to satisfy compact phase change heat exchanger's structural requirement, can circulate the oil of insufficient cooling heat transfer and go into interior box and carry out heat transfer treatment, can shorten fluid backward flow conveying route, promote high Wen Youye circulation heat transfer cooling efficiency.
The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (5)
1. The compact phase change heat exchanger is characterized by comprising an inner box plate (1), wherein a gear oil inlet pipe (2) is arranged on the left side wall of the inner box plate (1), a gear oil outlet pipe (3) is arranged on the right side wall of the inner box plate, a heat conduction pipe group (4) is arranged in a hollow cavity of the inner box plate (1), and two ends of the heat conduction pipe group (4) are respectively connected with the gear oil inlet pipe (2) and the gear oil outlet pipe (3);
The inner box plate (1) is characterized in that a hollow cavity is filled with a refrigerant medium, a liquid inlet pipe (5) is connected to the bottom wall of the inner box plate (1) in a penetrating manner, and a vapor-liquid outlet pipe (6) is connected to the top wall of the inner box plate.
2. A compact phase change heat exchanger according to claim 1, wherein the heat conducting tube group (4) comprises a plurality of U-shaped tube members connected in sequence.
3. A compact phase change heat exchanger according to claim 2, characterized in that the outer part of the inner box plate (1) is provided with an outer box plate (9), between which inner box plate (1) and the outer box plate (9) an air cooling chamber (10) is enclosed.
4. A compact phase change heat exchanger according to claim 3, wherein the left side wall of the outer box plate (9) is provided with an air inlet pipe (11) communicated with the air cooling cavity (10), and the right side wall is provided with an air outlet pipe (12) communicated with the air cooling cavity (10).
5. A compact phase change heat exchanger according to claim 3, characterized in that a return pipe (7) is arranged above the outer box plate (9), one end of the return pipe (7) is fixedly connected with the gear oil inlet pipe (2), the other end is fixedly connected with the gear oil outlet pipe (3), and a return pump (8) is arranged on the return pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322657098.5U CN221123119U (en) | 2023-09-28 | 2023-09-28 | Compact phase-change heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322657098.5U CN221123119U (en) | 2023-09-28 | 2023-09-28 | Compact phase-change heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221123119U true CN221123119U (en) | 2024-06-11 |
Family
ID=91339850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322657098.5U Active CN221123119U (en) | 2023-09-28 | 2023-09-28 | Compact phase-change heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221123119U (en) |
-
2023
- 2023-09-28 CN CN202322657098.5U patent/CN221123119U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |