CN214749904U - Medium temperature expander test system - Google Patents
Medium temperature expander test system Download PDFInfo
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- CN214749904U CN214749904U CN202120507909.1U CN202120507909U CN214749904U CN 214749904 U CN214749904 U CN 214749904U CN 202120507909 U CN202120507909 U CN 202120507909U CN 214749904 U CN214749904 U CN 214749904U
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Abstract
The utility model discloses a medium temperature expander test system, which comprises a working medium heating system and an expander test system, wherein the outlet of a heat storage oil tank (1) of the working medium heating system is connected with the heat transfer oil inlet of a heat exchanger (2), and the heat transfer oil outlet of the heat exchanger (2) is connected with the inlet of the heat storage oil tank (1); a high-pressure storage tank (3) of the expander test system is connected with a working medium inlet of the heat exchanger (2); the working medium outlet of the heat exchanger (2) is connected with the inlet of the expansion machine (4), the expansion machine (4) is connected with the gear box (22) and the backpressure gas storage tank (9) respectively, one end of the alternating current power dynamometer (5) is connected with the gear box (22), the other end of the alternating current power dynamometer is connected with the measurement and control system (6), the measurement and control system (6) is connected with the motor (7), and the compressor (8) is connected with the motor (7), the high-pressure storage tank (3) and the backpressure gas storage tank (9) respectively. The utility model discloses can test various rated rates of medium temperature expander and vary performance test such as operating mode characteristic, can promote the promotion of compressed air energy storage density also can be better simultaneously utilize the medium temperature waste heat.
Description
Technical Field
The utility model relates to a test technical field relates to a medium temperature expander test system particularly.
Background
In recent years, in order to solve the problems of peak clipping and valley filling of a power grid and grid connection of intermittent power resources such as solar energy, the compressed air energy storage technology is more and more emphasized, in order to reduce the dependence on fossil energy, domestic compressed air energy storage mostly utilizes compressed waste heat to reheat expansion gas, which causes the inlet temperature of an expansion machine to be relatively low, and the reheating temperature is mostly about 100 ℃ at present, which causes the density of energy storage to be relatively low, and a gas collection chamber to be constructed to be large.
At present, trough type solar heat utilization equipment is mature relatively, the heating temperature of the trough type solar heat to working media can reach about 400 ℃, and compared with other solar energy utilization technologies, the trough type solar heat utilization equipment is low in cost and can be commercially operated. The peak time of the electricity utilization in daytime is the time when the compressed air energy storage needs to be operated, and the peak time when the solar energy can be utilized is the same as the optimal time. In addition, a large amount of intermediate-temperature waste heat can be utilized in various industries such as chemical industry, steel, textile and the like.
The test of various rated and variable working condition characteristics of the medium temperature expander can promote the improvement of the energy storage density of the compressed air and can better utilize the medium temperature waste heat of various industries. The existing gas expander testing technology is mainly aimed at a closed testing system under a single condition of toxic and harmful gases, and because a heat exchanger is not arranged, the inlet temperature of an expander is difficult to adjust, and meanwhile, the universality of the testing system is relatively poor.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned shortcoming and the performance test such as the various ratings of ability test medium temperature expander and variable operating mode characteristic that provide, the medium temperature expander test system of utilization medium temperature waste heat that also can be better simultaneously of promotion that can promote compressed air energy storage density.
The utility model discloses a medium temperature expander test system comprises working medium heating system and expander test system, wherein: the working medium heating system comprises a heat storage oil tank, an adjusting valve B, a stop valve C, a heat exchanger and a stop valve E, wherein an outlet of the heat storage oil tank is connected with an inlet of heat transfer oil of the heat exchanger through a pipeline, the adjusting valve B and the stop valve C are sequentially arranged on the pipeline, an outlet of the heat transfer oil of the heat exchanger is connected with an inlet of the heat storage oil tank through a pipeline, and the pipeline is provided with the stop valve E.
The expander testing system comprises a high-pressure storage tank, an expander, a backpressure gas storage tank, a compressor, a gear box, an alternating current power dynamometer, a motor and a measurement and control system, wherein the high-pressure storage tank is connected with a working medium inlet of a heat exchanger through a pipeline, a stop valve A and a regulating valve A are sequentially arranged on the pipeline, a working medium outlet of the heat exchanger is connected with an inlet of the expander, the pipeline connected with the expander is provided with a stop valve F, the expander is respectively connected with the gear box and the backpressure gas storage tank, the pipeline connected with the expander and the backpressure gas storage tank is provided with a stop valve G, one end of the alternating current power dynamometer is connected with the gear box, the other end of the alternating current power dynamometer is connected with the measurement and control system, the measurement and control system is connected with the motor, the compressor is respectively connected with the motor, the high-pressure storage tank and the backpressure gas storage tank, the pipeline connected with the high-pressure storage tank is provided with a stop valve B, and the pipeline connected with the backpressure gas storage tank is provided with a stop valve D and a regulating valve C, a valve is arranged on a pipeline connecting the backpressure gas storage tank and the high-pressure storage tank; a pressure reducing valve is arranged on the backpressure air storage tank.
Compared with the prior art, the utility model, have obvious beneficial effect, can know from above technical scheme: the utility model discloses a: the heated heat conduction oil is used as a heat source, and the heat conduction oil enters the heat exchanger and then heats the high-pressure compressed gas to reach the temperature required by the test; regulating the pressure of the outlet gas through a regulating valve connected with the high-pressure gas storage device to reach the pressure required by the test; the alternating current power dynamometer is connected with the expansion machine to measure and control the expansion machine, so that the variable temperature working condition characteristic of the medium temperature heat source can be simulated; the outlet backpressure of expander gets into the backpressure gas holder through the direct discharge gas of high-pressure gas holder when needing the pressure boost, can adopt the compressor to go into high-pressure gas holder with it directly when needing the decompression, also can directly the evacuation step-down when the system is as open. The closed system can better adjust the backpressure size to realize the variable working condition test of the medium temperature expander export, this system not only can regard as closed system simultaneously, also can regard as open system when needs. The utility model discloses a through the test to the various rated rates of moderate temperature expander and variable working condition characteristic, the moderate temperature waste heat of utilization each trade that also can be better simultaneously of promotion that can promote compressed air energy storage density has solved the performance test and the research and development that utilize the moderate temperature compressed air expander of solar energy, the utility model relates to an open and closed experimental system of gas expansion device, also can be applied to solar heat utilization and utilize the waste heat of various mechanical and chemical industries to carry out the research and development and the detection of power generation facility.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The labels in the figure are:
1. a heat storage oil tank; 2. a heat exchanger; 3. a high pressure storage tank; 4. an expander; 5. an alternating current power dynamometer; 6. a measurement and control system; 7. an electric motor; 8. a compressor; 9. a backpressure gas storage tank; 10. adjusting a valve A; 11. a stop valve A; 12. a stop valve B; 13. a valve; 14. adjusting a valve B; 15. a stop valve C; 16. a stop valve D; 17; adjusting a valve C; 18. a pressure reducing valve; 19. a stop valve E; 20. a stop valve F; 21. a stop valve G; 22. a gear box.
Detailed Description
The following detailed description of the embodiments, structures, features and effects of the test system for medium temperature expanders according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
The utility model discloses a medium temperature expander test system comprises working medium heating system and expander test system, wherein: working medium heating system includes heat-retaining oil tank 1, governing valve B14, stop valve C15, heat exchanger 2 and stop valve E19, through the pipe connection between heat-retaining oil tank 1 export and the heat-conducting oil import of heat exchanger 2, be equipped with governing valve B14 on the pipeline in proper order, stop valve C15, through the pipe connection between heat-conducting oil export of heat exchanger 2 and the heat-retaining oil tank 1 import, be equipped with stop valve E19 on the pipeline, the heat-conducting oil that is heated in the heat-retaining oil tank 1 gets into heat exchanger 2 and heats the compression working medium after through governing valve B14 and stop valve C15, the heat-conducting oil after the cooling gets into heat-conducting oil heat-retaining oil tank again through stop valve E19 and heats, accomplish a circulation. The temperature of the heating working medium can be realized by controlling the flow of the heat-conducting oil through the regulating valve B14.
The expander test system comprises a high-pressure storage tank 3, an expander 4, a backpressure gas storage tank 9, a compressor 8, a gear box 22, an alternating current power dynamometer 5, a motor 7 and a measurement and control system 6, wherein the high-pressure storage tank 3 is connected with a working medium inlet of a heat exchanger 2 through a pipeline, a stop valve A11 and an adjusting valve A10 are sequentially arranged on the pipeline, a working medium outlet of the heat exchanger 2 is connected with an inlet of the expander 4, a stop valve F20 is arranged on the connected pipeline, the expander 4 is respectively connected with the gear box 22 and the backpressure gas storage tank 9, a stop valve G21 is arranged on the pipeline connecting the expander 4 with the backpressure gas storage tank 9, one end of the alternating current power dynamometer 5 is connected with the gear box 22, the other end of the alternating current power dynamometer is connected with the measurement and control system 6, the measurement and control system 6 is connected with the motor 7, the compressor 8 is respectively connected with the motor 7, the high-pressure storage tank 3 and the backpressure gas storage tank 9, and a stop valve B12 is arranged on the pipeline connected with the high-pressure storage tank 3, A stop valve D16 and a regulating valve C17 are arranged on a pipeline connected with the backpressure air storage tank 9, and a valve 13 is arranged on a pipeline connected with the backpressure air storage tank 9 and the high-pressure storage tank 3; the backpressure air storage tank 9 is provided with a pressure reducing valve 18.
The working principle is as follows: the high-pressure working medium passes through a stop valve A11 and a regulating valve A10, the pressure of the working medium is regulated to a required value, and then the temperature is increased to a required value after passing through a heat exchanger 2 and a stop valve F20. At this point the working fluid enters the expander 4 for testing. Because the rotating speed of the expansion machine 4 is high, in order to match with the AC electric dynamometer 5, a gear box 22 is added between the expansion machine and the AC electric dynamometer 5, and the rotating speed of the expansion machine 4 is controlled by a measurement and control system 6.
The expanded working medium enters the backpressure gas storage tank 9 through the stop valve G21, the low-pressure working medium has two ways in the way of going, when the system is in closed circulation, the working medium can enter the compressor 8 through the stop valve D16 and the regulating valve C17, and then enters the high-pressure gas storage tank 3 through the stop valve B12 to complete one circulation. The compressor 8 controls the motor 7 to drive through the measurement and control system 6.
The pressurization of the backpressure gas storage tank 9 is realized by enabling high-pressure working medium in the high-pressure gas storage tank 3 to pass through a valve 13 and then enter the backpressure gas storage tank 9 to be mixed with low-pressure working medium. The decompression is realized by two ways: when the system is open, it can be depressurized by direct evacuation through relief valve 18; when the closed system is adopted, the gas in the partial back pressure gas storage tank can be pumped into the high pressure gas storage tank 3 by the compressor 8.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and any simple modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention.
Claims (7)
1. The utility model provides a medium temperature expander test system, comprises working medium heating system and expander test system which characterized in that: the working medium heating system comprises a heat storage oil tank (1), an adjusting valve B (14), a stop valve C (15), a heat exchanger (2) and a stop valve E (19), wherein an outlet of the heat storage oil tank (1) is connected with a heat conduction oil inlet of the heat exchanger (2) through a pipeline, and a heat conduction oil outlet of the heat exchanger (2) is connected with an inlet of the heat storage oil tank (1) through a pipeline;
the expander testing system comprises a high-pressure storage tank (3), an expander (4), a backpressure air storage tank (9), a compressor (8), a gear box (22), an alternating-current power dynamometer (5), a motor (7) and a measurement and control system (6), wherein the high-pressure storage tank (3) is connected with a working medium inlet of the heat exchanger (2) through a pipeline; heat exchanger (2) working medium export and expander (4) access connection, be equipped with stop valve F (20) on the pipeline of connection, expander (4) respectively with gear box (22), backpressure gas holder (9) are connected, be equipped with stop valve G (21) on the pipeline that expander (4) and backpressure gas holder (9) are connected, alternating current power dynamometer (5) one end is connected with gear box (22), measurement and control system (6) are connected to the other end, measurement and control system (6) are connected with motor (7), compressor (8) respectively with motor (7), high pressure storage tank (3) and backpressure gas holder (9) are connected.
2. A medium-temperature expander test system as claimed in claim 1, wherein: and a regulating valve B (14) and a stop valve C (15) are sequentially arranged on a pipeline between the outlet of the heat storage oil tank (1) and the heat conducting oil inlet of the heat exchanger (2).
3. A medium-temperature expander test system as claimed in claim 1, wherein: the heat conducting oil outlet of the heat exchanger (2) is connected with the inlet of the heat storage oil tank (1) through a pipeline, and a stop valve E (19) is arranged on the pipeline.
4. A medium-temperature expander test system as claimed in claim 1, wherein: a stop valve A (11) and an adjusting valve A (10) are sequentially arranged on a pipeline between the high-pressure storage tank (3) and the working medium inlet of the heat exchanger (2).
5. A medium-temperature expander test system as claimed in claim 1, wherein: a stop valve B (12) is arranged on a pipeline connecting the compressor (8) and the high-pressure storage tank (3), and a stop valve D (16) and a regulating valve C (17) are arranged on a pipeline connecting the backpressure air storage tank (9).
6. A medium-temperature expander test system as claimed in claim 1, wherein: a valve (13) is arranged on a pipeline connecting the backpressure gas storage tank (9) and the high-pressure storage tank (3).
7. A medium-temperature expander test system as claimed in claim 1, wherein: a pressure reducing valve (18) is arranged on the backpressure air storage tank (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120507909.1U CN214749904U (en) | 2021-03-10 | 2021-03-10 | Medium temperature expander test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120507909.1U CN214749904U (en) | 2021-03-10 | 2021-03-10 | Medium temperature expander test system |
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| Publication Number | Publication Date |
|---|---|
| CN214749904U true CN214749904U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120507909.1U Active CN214749904U (en) | 2021-03-10 | 2021-03-10 | Medium temperature expander test system |
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| CN (1) | CN214749904U (en) |
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2021
- 2021-03-10 CN CN202120507909.1U patent/CN214749904U/en active Active
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