CN221228154U - Waste heat recovery system of energy storage converter - Google Patents
Waste heat recovery system of energy storage converter Download PDFInfo
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- CN221228154U CN221228154U CN202421129684.0U CN202421129684U CN221228154U CN 221228154 U CN221228154 U CN 221228154U CN 202421129684 U CN202421129684 U CN 202421129684U CN 221228154 U CN221228154 U CN 221228154U
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- energy storage
- storage converter
- heat
- heat exchanger
- condenser
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- 238000004146 energy storage Methods 0.000 title claims abstract description 87
- 238000011084 recovery Methods 0.000 title claims abstract description 16
- 239000002918 waste heat Substances 0.000 title claims abstract description 15
- 239000002826 coolant Substances 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000003507 refrigerant Substances 0.000 claims description 13
- 238000009825 accumulation Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract description 27
- 238000005338 heat storage Methods 0.000 abstract description 18
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000012806 monitoring device Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011555 saturated liquid Substances 0.000 description 2
- 239000013526 supercooled liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a waste heat recovery system of an energy storage converter, which relates to the field of energy storage converters and comprises the energy storage converter, wherein a cooling medium circulating pipeline is arranged in a shell of the energy storage converter, a cooling medium circulating pump is arranged on the cooling medium circulating pipeline, an energy storage converter heat exchanger is arranged at a shell of the energy storage converter, the energy storage converter heat exchanger is connected with an evaporator of a heat pump unit, an air outlet of the evaporator is connected with an air inlet of a condenser, a liquid inlet of the evaporator is connected with a liquid outlet of the condenser, the condenser is connected with a heat storage system, and the heat storage system comprises a heat storage tank. According to the utility model, the cooling system is arranged, so that the total conversion power of the energy storage converter is improved by about 4-5%, the cooling system exchanges heat with the energy storage converter and absorbs heat energy, the refrigerating working medium of the cooling system is heated, and the heat can be stored in the heat storage system.
Description
Technical Field
The utility model relates to the field of energy storage converters, in particular to a waste heat recovery system of an energy storage converter.
Background
The energy storage converter can control the charging and discharging processes of the storage battery to perform alternating current-direct current conversion, and can directly supply power for an alternating current load under the condition of no power grid.
Too high a temperature of the energy storage converter will affect the performance of the energy storage converter, and may cause the service life of relevant parts to be reduced due to high temperature, and proper cooling is required. Under the existing operation mode of the energy storage converter, the energy storage converter is cooled only through scattered air cooling equipment and the like, or most of the energy storage converters are in modular design through containers, and each container maintains stable operation temperature in an air cooling real-time cooling mode. The cooling mode is unstable and consumes more power, which is about 4-5% of the total conversion power of the energy storage converter, so that the conversion power of the energy storage converter is reduced. And the current energy storage converter cooling mode can not effectively recover the heat of the energy storage converter, so that energy waste is caused.
Therefore, it is necessary to design a waste heat recovery system of a large-scale energy storage converter, so as to solve the problems that the working efficiency of the existing energy storage converter is affected and the concentrated collection of heat energy is realized when the existing energy storage converter is cooled in a working stage.
Disclosure of utility model
The utility model provides a waste heat recovery system of an energy storage converter, which solves the problems that the working efficiency is affected by cooling the existing energy storage converter in a working stage and the concentrated collection of heat energy is realized.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The utility model provides a waste heat recovery system of energy storage converter, includes the energy storage converter, be provided with coolant circulation pipeline in the energy storage converter casing, be provided with coolant circulation pump on the coolant circulation pipeline, the shell department of energy storage converter is provided with energy storage converter heat exchanger, energy storage converter heat exchanger is connected with heat pump set's evaporimeter, the gas inlet of condenser is connected to the gas outlet of evaporimeter, the liquid outlet of condenser is connected to the inlet of evaporimeter, the condenser is connected with heat accumulation system, heat accumulation system includes the heat accumulation jar.
Further, the energy storage converter heat exchanger is a shell-and-tube heat exchanger, a cooling medium is arranged in a shell of the energy storage converter heat exchanger, a plurality of refrigerant tubes connected in parallel are arranged in the pipelines in the energy storage converter heat exchanger, and a refrigerating working medium is arranged in the refrigerant tubes.
Further, the heat pump unit further comprises a compressor, the compressor is arranged on a pipeline between the liquid inlet of the evaporator and the liquid outlet of the condenser, and the compressor is in wireless connection with the control device.
Further, heat exchanger control valves are arranged on pipelines of the air outlet of the evaporator and the air inlet of the condenser, and the heat exchanger control valves are in wireless connection with a control device.
Further, an expansion valve is arranged on a connecting pipeline between the air outlet of the evaporator and the control valve of the heat exchanger, and a check valve is arranged on a connecting pipeline between the control valve of the heat exchanger and the air inlet of the condenser.
Further, a temperature measuring device is arranged at the inlet of the cooling medium circulating pump.
The utility model has the beneficial effects that:
According to the utility model, the cooling system is arranged, so that the total conversion power of the energy storage converter is improved by about 4-5%. And the cooling system exchanges heat with the energy storage converter and absorbs heat energy, the refrigerating working medium of the cooling system is heated, the heat can be stored in the heat storage system, namely, the heat storage system is provided with heat storage media such as water, oil and the like, the heat of the cooling system is obtained by using the heat storage media, the heat can be stored and reused, and the heat can be intensively managed. I.e. the heat storage tank storing the heat storage medium is connected in heat exchange with the condenser of the heat pump unit to collect heat. The heat is used for heating or selling through a pipeline.
Drawings
For a clearer description of an embodiment of the utility model or of the prior art, the drawings that are used in the description of the embodiment or of the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present utility model.
Reference numerals illustrate:
1. An energy storage converter; 2. a cooling medium circulation pump; 3. a cooling system; 4. an energy storage converter heat exchanger; 5. a temperature measuring device; 6. a heat exchanger control valve; 7. a check valve; 8. an evaporator; 9. an expansion valve; 10. a condenser; 11. a compressor; 12. and a heat storage system.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. 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.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
The utility model provides a technical scheme that: the waste heat recovery system of the energy storage converter comprises the energy storage converter 1, a cooling medium circulating pump 2, a monitoring device, a cooling system 3, a heat storage system 12 and pipelines as shown in fig. 1;
The utility model is suitable for the waste heat recovery of a large-scale energy storage converter system, and comprises a monitoring device for monitoring the working state of an energy storage converter 1 and a cooling system 3 which is started by sending a signal that the energy storage converter 1 is in the working state from the monitoring device; the cooling system 3 cools the energy storage converter 1 in a heat exchange mode; the system further comprises a heat storage system 12 for collecting heat of the energy storage converter 1 exchanged by the cooling system 3.
The monitoring device can be an energy management system EMS which is used by an energy storage converter system in the prior art, and the management system EMS is mainly used for monitoring parameters such as electric energy quality, output power, voltage and the like and then controlling the operation of the energy storage converter 1 system.
The system also comprises an energy storage converter heat exchanger 4, a heat pump unit and a temperature control device; wherein the temperature control system comprises a temperature measuring device 5; the energy storage converter heat exchanger 4 and the heat pump unit are cascaded to form a cooling system 3; the energy storage converter heat exchangers 4 are arranged at the shell of each energy storage converter 1, the energy storage converter heat exchangers 4 are shell-and-tube heat exchangers, the heat exchanger control valve 6 is arranged at the refrigerant side of the energy storage converter heat exchangers 4, cooling media are arranged at the inner side of the shell of each energy storage converter heat exchanger 4, a plurality of parallel refrigerant pipes are arranged in the pipelines in the energy storage converter heat exchangers 4, refrigeration working media are arranged in the refrigerant pipes, every plurality of sets (such as 100 sets) of refrigerant pipes are connected in parallel, the refrigerant is gathered and enters the heat pump unit after being heated, low-grade heat energy is lifted into high-grade heat energy through a heat pump to exchange heat with hot water to heat the hot water to 70-90 ℃, and heating or selling is carried out after the heat energy is stored, so that the cold and hot comprehensive utilization of energy is realized.
The temperature measuring device 5 is arranged at the inlet of the cooling medium circulating pump 2, the heat exchanger control valve 6 is arranged at the refrigerant side of the evaporator 8, the control device is used for controlling the start and stop of the heat pump unit and the energy storage converter heat exchanger 4 and the output power thereof, and meanwhile, the control device controls the start and stop of the energy storage converter heat exchanger 4 and the output power thereof through the heat exchanger control valve 6; an expansion valve 9 is installed on a connection line between the evaporator 8 and the condenser 10, and a check valve 7 is installed on a connection line between the expansion valve 9 and the condenser 10. Expansion valve 9 acts: a throttling device which throttles the saturated liquid or supercooled liquid at the condensing pressure in the condenser 10 and then reduces the saturated liquid or supercooled liquid to the evaporating pressure and evaporating temperature, and simultaneously adjusts the flow rate of the refrigerant entering the evaporator 8 according to the load change; the check valve 7 functions: preventing medium backflow and preventing the reverse rotation of the driving motor of the compressor 11;
The refrigerant pipes of the energy storage converter heat exchanger 4 are connected in parallel and release heat collected by the cooling medium to supply the evaporator 8 of the heat pump unit, the condenser 10 of the heat pump unit releases heat to the heat storage system 12 and is stored by the heat storage system 12, and the heat storage system 12 is a heat storage tank for storing the heat storage medium.
The heat pump unit further comprises a compressor 11, the compressor 11 which is controlled by the control device to start and stop in a time-sharing manner is arranged on a pipeline between the liquid inlet of the evaporator 8 and the liquid outlet of the condenser 10 of the heat pump unit, and the compressor 11 is started in the working state of the energy storage converter 1 and stopped in the stopping state of the energy storage converter 1.
The heat exchanger control valve 6 of the heat pump unit is positioned on a pipeline of the air outlet of the evaporator 8 and the air inlet of the condenser 10, an expansion valve 9 is arranged on a connecting pipeline between the evaporator 8 and the heat exchanger control valve 6, and a check valve 7 is connected on a pipeline between the heat exchanger control valve 6 and the condenser 10.
The heat pump unit further comprises a heat exchanger control valve 6 which can be used as a single part or a component part of the heat pump unit, for example, in the heat pump unit, the heat exchanger control valve 6 is arranged on the refrigerating medium side of the heat pump unit, and the control device is used for controlling the start and stop of the heat pump unit or the heat pump unit and the energy storage converter heat exchanger 4;
The heat exchanger control valve 6 may also be arranged to regulate the output power of the heat pump unit, said control means being arranged to control the start-stop of the energy storage converter heat exchanger 4 and/or to regulate its output power via the heat exchanger control valve 6.
The cooling system 3 is used for cooling the energy storage converter 1, and the heat pump unit is arranged for realizing centralized collection and recovery of heat of the energy storage converter 1, and for the starting time of the cooling system 3, namely, the control device controls the starting and stopping of the energy storage converter heat exchanger 4 through the heat exchanger control valve 6, and the control device controls the compressor 11 which is started and stopped in a time-sharing way to control the starting time of cooling.
The cooling system 3 can be a cooling medium circulation pipeline arranged on the shell of the energy storage converter 1, the pipeline is provided with a cooling medium circulation pump 2 and an energy storage converter heat exchanger 4, the shell side of the energy storage converter heat exchanger 4 is a cooling medium, and the pipe side is a refrigerating medium in a plurality of refrigerant pipes connected in parallel. The temperature measuring device 5 is arranged at the inlet of the cooling medium circulating pump 2 of the energy storage converter cooler, and the temperature measuring device 5 is used for monitoring the temperature of the energy storage converter 1 in the cooling method.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides an energy storage converter's waste heat recovery system, its characterized in that, including energy storage converter (1), be provided with cooling medium circulation pipeline in energy storage converter (1) casing, be provided with cooling medium circulating pump (2) on the cooling medium circulation pipeline, the shell department of energy storage converter (1) is provided with energy storage converter heat exchanger (4), energy storage converter heat exchanger (4) are connected with heat pump set's evaporimeter (8), the gas inlet of condenser (10) is connected to the gas outlet of evaporimeter (8), the liquid outlet of condenser (10) is connected to the inlet of evaporimeter (8), condenser (10) are connected with heat accumulation system (12), heat accumulation system (12) include the heat accumulation jar.
2. The waste heat recovery system of an energy storage converter according to claim 1, wherein the energy storage converter heat exchanger (4) is a shell-and-tube heat exchanger, a cooling medium is arranged in a shell of the energy storage converter heat exchanger (4), a plurality of refrigerant tubes connected in parallel are arranged in a pipeline in the energy storage converter heat exchanger (4), and a refrigerating working medium is arranged in the refrigerant tubes.
3. The waste heat recovery system of an energy storage converter according to claim 1, wherein the heat pump unit further comprises a compressor (11), the compressor (11) is arranged on a pipeline between a liquid inlet of the evaporator (8) and a liquid outlet of the condenser (10), and the compressor (11) is in wireless connection with the control device.
4. The waste heat recovery system of the energy storage converter according to claim 1, wherein a heat exchanger control valve (6) is arranged on a pipeline of an air outlet of the evaporator (8) and an air inlet of the condenser (10), and the heat exchanger control valve (6) is in wireless connection with the control device.
5. The waste heat recovery system of the energy storage converter according to claim 4, wherein an expansion valve (9) is arranged on a connecting pipeline between an air outlet of the evaporator (8) and the heat exchanger control valve (6), and a check valve (7) is arranged on a connecting pipeline between the heat exchanger control valve (6) and an air inlet of the condenser (10).
6. Waste heat recovery system of an energy storage converter according to claim 1, characterized in that the inlet of the cooling medium circulation pump (2) is provided with a temperature measuring device (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421129684.0U CN221228154U (en) | 2024-05-23 | 2024-05-23 | Waste heat recovery system of energy storage converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421129684.0U CN221228154U (en) | 2024-05-23 | 2024-05-23 | Waste heat recovery system of energy storage converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221228154U true CN221228154U (en) | 2024-06-25 |
Family
ID=91565718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421129684.0U Active CN221228154U (en) | 2024-05-23 | 2024-05-23 | Waste heat recovery system of energy storage converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221228154U (en) |
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2024
- 2024-05-23 CN CN202421129684.0U patent/CN221228154U/en active Active
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