CN220380338U - Plate-shell type heat exchanger for organic Rankine cycle system - Google Patents
Plate-shell type heat exchanger for organic Rankine cycle system Download PDFInfo
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- CN220380338U CN220380338U CN202321494077.XU CN202321494077U CN220380338U CN 220380338 U CN220380338 U CN 220380338U CN 202321494077 U CN202321494077 U CN 202321494077U CN 220380338 U CN220380338 U CN 220380338U
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- 241000446313 Lamella Species 0.000 claims description 3
- 208000006673 asthma Diseases 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 8
- 238000010248 power generation Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 101100491335 Caenorhabditis elegans mat-2 gene Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 239000000924 antiasthmatic agent Substances 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a plate and shell type heat exchanger for an organic Rankine cycle system, which comprises the following components: the shell comprises an upper cavity, a narrow communication channel and a lower cavity which are integrally formed; the bottom of the lower cavity is provided with a cold fluid inlet, and a guide cover is arranged in the lower cavity and close to the cold fluid inlet; the top of the upper cavity is provided with a cold fluid outlet, and a gas-liquid separation net is arranged in the upper cavity and close to the cold fluid outlet. The utility model provides a plate-shell type heat exchanger for an organic Rankine cycle system, which has the advantages of simple structure, convenient installation and vibration resistance, ensures the heat exchange efficiency, enhances the capability of bearing pressure and temperature difference, realizes gas-gas heat exchange, gas-liquid heat exchange and liquid-liquid heat exchange, and is particularly suitable for ORC power generation systems of steam heat sources. In addition, the heat exchange area which can be provided in the same space volume is large, and the heat exchange device is particularly suitable for places with narrow installation space.
Description
Technical Field
The utility model belongs to the technical field of heat exchange, and particularly relates to a plate-shell type heat exchanger for an organic Rankine cycle system.
Background
Along with the continuous improvement of the energy consumption index requirements of industrial production, the full utilization of the medium-low temperature waste heat Yu Yaneng source generated in the production process becomes a basic requirement. The recovery of waste heat Yu Yaneng source power generation by utilizing an Organic Rankine Cycle (ORC) technology is a feasible technology, and the ORC technology is widely applied to various industrial production and becomes an indispensable technical system.
At present, when the conventional heat exchanger device is used for an organic Rankine cycle system, the conventional heat exchanger device generally has the problems of large occupied space, small pressure bearing capacity, complex installation and the like.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides a plate-shell type heat exchanger for an organic Rankine cycle system, which can effectively solve the problems.
The technical scheme adopted by the utility model is as follows:
the utility model provides a plate and shell type heat exchanger for an organic Rankine cycle system, which comprises the following components: the shell (1), the shell (1) comprises an integrally formed upper cavity (1.1), a narrow communication channel (1.2) and a lower cavity (1.3); a cold fluid inlet (2) is formed in the bottom of the lower cavity (1.3), and a guide cover (3) is arranged in the lower cavity (1.3) and close to the cold fluid inlet (2); a cold fluid outlet (4) is formed in the top of the upper cavity (1.1), and a gas-liquid separation net (5) is arranged in the upper cavity (1.1) and close to the cold fluid outlet (4);
a first heat exchange plate assembly (6) is arranged in the upper cavity (1.1), a 1 st hot fluid inlet (7) is communicated with the upper part of the first heat exchange plate assembly (6), and a 1 st hot fluid outlet (8) is communicated with the lower part of the first heat exchange plate assembly (6);
a second heat exchange plate assembly (9) is arranged in the lower cavity (1.3), a 2 nd hot fluid inlet (10) is communicated with the upper part of the second heat exchange plate assembly (9), and a 2 nd hot fluid outlet (11) is communicated with the lower part of the second heat exchange plate assembly (9); a connecting pipe (12) is arranged between the 1 st hot fluid outlet (8) and the 2 nd hot fluid inlet (10) in a communicated manner; the lower part of the connecting pipe (12) is provided with a asthma eliminating valve (13).
Preferably, a first rear cover (14) is arranged on the left side of the upper cavity (1.1), and a first flange cover (15) is arranged on the right side of the upper cavity (1.1); the left side of the lower cavity (1.3) is provided with a second rear cover (16), and the right side of the upper cavity (1.1) is provided with a second flange cover (17).
Preferably, the first heat exchange plate assembly (6) and the second heat exchange plate assembly (9) have the same structure, and each heat exchange plate comprises a plurality of heat exchange plates which are arranged in parallel and connected into a whole; the heat exchange plate is of a flexible structure, and the outer surface and the inner surface of the inner cavity form a honeycomb shape by arranging a plurality of bulges.
Preferably, the upper cavity (1.1) and the lower cavity (1.3) are connected and supported through a supporting piece (18).
Preferably, a supporting leg (19) is arranged below the lower cavity (1.3).
The plate-shell type heat exchanger for the organic Rankine cycle system provided by the utility model has the following advantages:
the utility model provides a plate-shell type heat exchanger for an organic Rankine cycle system, which has the advantages of simple structure, convenient installation and vibration resistance, ensures the heat exchange efficiency, enhances the capability of bearing pressure and temperature difference, realizes gas-gas heat exchange, gas-liquid heat exchange and liquid-liquid heat exchange, and is particularly suitable for ORC power generation systems of steam heat sources. In addition, the heat exchange area which can be provided in the same space volume is large, and the heat exchange device is particularly suitable for places with narrow installation space.
Drawings
Fig. 1 is a schematic structural diagram of a plate-shell heat exchanger for an organic rankine cycle system provided by the utility model.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The utility model provides a plate-shell type heat exchanger for an organic Rankine cycle system, which reduces the space occupation area of an ORC power generation system device, is convenient for recycling more and less waste heat, has high heat exchange efficiency, is simple and convenient to maintain, has light weight and can bear higher pressure. The method is particularly suitable for an ORC power generation system requiring the controllable micro-overheat gaseous organic working medium sent out by the evaporator. The method realizes gas-gas heat exchange, gas-liquid separation, gas-liquid heat exchange and liquid-liquid heat exchange, and eliminates gas-liquid mixed heat exchange surge.
The present utility model provides a lamella heat exchanger for an organic rankine cycle system, referring to fig. 1, comprising: the shell 1, the shell 1 adopts a steel shell; the shell 1 comprises an upper cavity 1.1, a narrow communication channel 1.2 and a lower cavity 1.3 which are integrally formed; the upper cavity 1.1 and the lower cavity 1.3 are both cylindrical in shape and are consistent in axial direction. The bottom of the lower cavity 1.3 is provided with a cold fluid inlet 2, and a guide cover 3 is arranged inside the lower cavity 1.3 and near the cold fluid inlet 2; the top of the upper cavity 1.1 is provided with a cold fluid outlet 4, and a gas-liquid separation net 5 is arranged in the upper cavity 1.1 and near the cold fluid outlet 4;
the first heat exchange plate assembly 6 is arranged in the upper cavity 1.1, the upper part of the first heat exchange plate assembly 6 is communicated with the 1 st hot fluid inlet 7, and the lower part of the first heat exchange plate assembly 6 is communicated with the 1 st hot fluid outlet 8;
the second heat exchange plate assembly 9 is arranged in the lower cavity 1.3, the upper part of the second heat exchange plate assembly 9 is communicated with the 2 nd hot fluid inlet 10, and the lower part of the second heat exchange plate assembly 9 is communicated with the 2 nd hot fluid outlet 11; a connecting pipe 12 is arranged between the 1 st hot fluid outlet 8 and the 2 nd hot fluid inlet 10 in a communicated manner; the lower part of the connecting pipe 12 is provided with an anti-surge valve 13. The anti-surge valve 13 is installed in a threaded connection.
The utility model provides a plate-shell type heat exchanger for an organic Rankine cycle system, which has the working principle that: when the device is used for steam power generation driving of the organic Rankine cycle system, cold fluid at an inlet is liquid organic working medium, the organic working medium flows into the lower cavity 1.3 from the cold fluid inlet 2, flows through the shell side of the lower cavity 1.3 under the flow guiding effect of the flow guiding cover 3, exchanges heat with the second heat exchange plate assembly 9, increases the temperature to be close to the liquid evaporation temperature, then flows through the narrow communication channel 1.2, enters the upper cavity 1.1, flows through the shell side of the upper cavity 1.1, exchanges heat with the first heat exchange plate assembly 6, further increases the temperature to a gasification state, then filters liquid drops through the gas-liquid separation net 5, and then obtains dry gas, and the dry gas is conveyed to the generator of the organic Rankine cycle system to serve as steam power generation driving. This shell side is the flow path for the cold fluid.
The hot fluid at the inlet is high-temperature water vapor, flows into the first heat exchange plate assembly 6 from the 1 st hot fluid inlet 7, exchanges heat with the cold fluid organic working medium, reduces the temperature to be mixed with wet steam, flows out from the 1 st hot fluid outlet 8, flows into the second heat exchange plate assembly 9 from the 2 nd hot fluid inlet 10 after flowing through the connecting pipe 12, exchanges heat with the cold fluid organic working medium, reduces the temperature to be further reduced to be set liquid temperature, and flows out from the 2 nd hot fluid outlet 11.
The heat exchange process of the heat exchanger is divided into four processes, namely, a hot fluid passes through a plate (a heat exchange plate assembly) and a cold fluid passes through a shell side. The heat exchange process is as follows: the upper cavity of the upper part of the heat exchanger firstly carries out gas-gas heat exchange, and cold side fluid is changed into an overheat state from a mixed state and a saturated state in sequence; and then gas-liquid heat exchange is carried out, the cold side fluid is changed from a liquid state to a mixed state, and the hot fluid is changed into wet gas after heat exchange and enters a lower cavity of the lower part of the heat exchanger through a connecting pipe 12. And in the lower cavity of the lower part of the heat exchanger, the heat exchanger performs gas-liquid heat exchange and liquid-liquid heat exchange, the hot fluid is changed from a gaseous state to a liquid state, and the cold fluid is heated from a low-temperature state to a state close to a saturated temperature. Therefore, the heat exchanger realizes the whole process of gas-gas, gas-liquid and liquid-liquid heat exchange, and solves the phase change heat exchange vibration problem of the heat exchanger.
In addition, because the hot fluid flowing through the connecting pipe 12 and entering the lower heat exchange plate is gas-liquid mixed fluid in the connecting pipe 12, vibration is easy to generate, and therefore the anti-asthma valve 13 is arranged at the lower part of the connecting pipe 12, so that the vibration degree of the whole heat exchange plate during operation is effectively reduced.
For convenient installation and disassembly, a first rear cover 14 is arranged on the left side of the upper cavity 1.1, and a first flange cover 15 is arranged on the right side of the upper cavity 1.1; the left side of the lower cavity 1.3 is provided with a second rear cover 16, and the right side of the upper cavity 1.1 is provided with a second flange cover 17. The rear cover and the flange cover are easy to install and detach, so that the heat exchange plate assembly is convenient to install in the cavity.
In the application, the first heat exchange plate assembly 6 and the second heat exchange plate assembly 9 have the same structure and comprise a plurality of heat exchange plates which are arranged in parallel and connected into a whole; the heat exchange plate is of a flexible structure, and the outer surface and the inner surface of the inner cavity form a honeycomb shape by arranging a plurality of bulges. As an example, the first heat exchange plate assembly 6 may be integrally connected to the gas-liquid separation net 5, and the second heat exchange plate assembly 9 may be integrally connected to the pod 3. The heat exchange plate component is of a flexible structure, is connected into a honeycomb shape through laser welding, realizes countercurrent heat transfer, and can obtain a good turbulence effect; meanwhile, the heat exchange plate group has elasticity, and good elasticity of the heat exchange plate group is guaranteed, so that the capacity of the heat exchange plate group for bearing pressure and temperature difference is enhanced.
To enhance the stability and reliability of the overall structure, the upper chamber 1.1 and the lower chamber 1.3 are supported by a connection through a support 18. Below the lower chamber 1.3, support legs 19 are provided, which are arranged in the mounting position by means of the support legs 19.
The utility model provides a plate-shell type heat exchanger for an organic Rankine cycle system, which has the characteristics of high temperature resistance, high pressure resistance and the like due to the protection of a pressure container shell and the flexible structure of a heat exchange plate assembly, wherein the highest pressure can reach 5MPa, and the highest temperature can reach 300 ℃.
The utility model provides a plate-shell type heat exchanger for an organic Rankine cycle system, which has the advantages of simple structure, convenient installation and vibration resistance, ensures the heat exchange efficiency, enhances the capability of bearing pressure and temperature difference, realizes gas-gas heat exchange, gas-liquid heat exchange and liquid-liquid heat exchange, and is particularly suitable for ORC power generation systems of steam heat sources. In addition, the heat exchange area which can be provided in the same space volume is large, and the heat exchange device is particularly suitable for places with narrow installation space.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which is also intended to be covered by the present utility model.
Claims (5)
1. A lamella heat exchanger for an organic rankine cycle system, comprising: the shell (1), the shell (1) comprises an integrally formed upper cavity (1.1), a narrow communication channel (1.2) and a lower cavity (1.3); a cold fluid inlet (2) is formed in the bottom of the lower cavity (1.3), and a guide cover (3) is arranged in the lower cavity (1.3) and close to the cold fluid inlet (2); a cold fluid outlet (4) is formed in the top of the upper cavity (1.1), and a gas-liquid separation net (5) is arranged in the upper cavity (1.1) and close to the cold fluid outlet (4);
a first heat exchange plate assembly (6) is arranged in the upper cavity (1.1), a 1 st hot fluid inlet (7) is communicated with the upper part of the first heat exchange plate assembly (6), and a 1 st hot fluid outlet (8) is communicated with the lower part of the first heat exchange plate assembly (6);
a second heat exchange plate assembly (9) is arranged in the lower cavity (1.3), a 2 nd hot fluid inlet (10) is communicated with the upper part of the second heat exchange plate assembly (9), and a 2 nd hot fluid outlet (11) is communicated with the lower part of the second heat exchange plate assembly (9); a connecting pipe (12) is arranged between the 1 st hot fluid outlet (8) and the 2 nd hot fluid inlet (10) in a communicated manner; the lower part of the connecting pipe (12) is provided with a asthma eliminating valve (13).
2. The plate and shell heat exchanger for an organic rankine cycle system according to claim 1, characterized in that a first rear cover (14) is mounted on the left side of the upper cavity (1.1), and a first flange cover (15) is mounted on the right side of the upper cavity (1.1); the left side of the lower cavity (1.3) is provided with a second rear cover (16), and the right side of the upper cavity (1.1) is provided with a second flange cover (17).
3. A plate and shell heat exchanger for an organic rankine cycle system according to claim 1, wherein the first heat exchange plate assembly (6) and the second heat exchange plate assembly (9) are identical in structure, each comprising a plurality of heat exchange plates arranged in parallel and connected to form a single body; the heat exchange plate is of a flexible structure, and the outer surface and the inner surface of the inner cavity form a honeycomb shape by arranging a plurality of bulges.
4. A lamella heat exchanger for an organic rankine cycle system according to claim 1, characterized in that between the upper cavity (1.1) and the lower cavity (1.3) is supported by a support (18) connection.
5. Plate and shell heat exchanger for an organic rankine cycle system according to claim 1, characterized in that below the lower cavity (1.3) there are provided support legs (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321494077.XU CN220380338U (en) | 2023-06-12 | 2023-06-12 | Plate-shell type heat exchanger for organic Rankine cycle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321494077.XU CN220380338U (en) | 2023-06-12 | 2023-06-12 | Plate-shell type heat exchanger for organic Rankine cycle system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220380338U true CN220380338U (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321494077.XU Active CN220380338U (en) | 2023-06-12 | 2023-06-12 | Plate-shell type heat exchanger for organic Rankine cycle system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220380338U (en) |
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2023
- 2023-06-12 CN CN202321494077.XU patent/CN220380338U/en active Active
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