CN210665035U - Air source device for closed experimental system of compressor - Google Patents
Air source device for closed experimental system of compressor Download PDFInfo
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- CN210665035U CN210665035U CN201922086137.4U CN201922086137U CN210665035U CN 210665035 U CN210665035 U CN 210665035U CN 201922086137 U CN201922086137 U CN 201922086137U CN 210665035 U CN210665035 U CN 210665035U
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Abstract
The utility model discloses an air supply unit for compressor closed experimental system, this air supply unit include tonifying qi unit, gassing unit, voltage stabilizing unit. The air source device can complete the self-circulation of the working medium through the pressure stabilizing unit (comprising a pressure stabilizing tank, a compressor and other parts), can realize the recovery function of the working medium, and effectively expands the testing capability of a closed experimental system of the compressor; the air source device can realize air supplement and air release of a closed experimental system of the compressor by arranging the air supplement unit and the air release unit; the pressure fluctuation at the outlet of the tested compressor is dynamically monitored, and the quick surge relief of the tested compressor can be realized by operating the main air release valve. The utility model discloses an air supply device belongs to centrifugation or the relevant technical field of axial compressor test, not only is applicable to stable working medium such as air, carbon dioxide, nitrogen gas, is applicable to easily inflammable, explosive and corrosive working medium such as hydrogen, ammonia equally.
Description
Technical Field
The utility model belongs to the technical field of the compressed air energy storage, involve centrifugation or the relevant technical field of axial compressor test, specifically be an air supply unit for compressor closed experimental system.
Background
The characteristics of a compressed air energy storage system are combined, a centrifugal or axial flow type is usually selected for a compressor, relevant experiments and tests of the compressor are carried out, the performance identification of a new product of the compressor can be realized, and a performance curve and a quality detection means are provided for a designed prototype. According to different experiment types, the compressor experiment system can be divided into an open type and a closed type, wherein the open type experiment system can only realize the performance experiment of the compressor by taking air as a medium or other media (air is selected as substitute gas), and the experiment working condition can be seriously deviated from the design working condition; the closed experimental system can realize the performance experiment of any medium compressor by adding a set of air source device with air supplementing and releasing functions, a heat exchanger and a pressure reducing device, and can randomly select and control the air inlet pressure and temperature.
At present, a gas supplementing bottle is usually selected as a working medium gas supplementing device in the closed circulation system of the existing small compressor, and if the pressure of the gas supplementing bottle is smaller than the inlet pressure of an experimental system, the gas bottle needs to be replaced, so that the cost is high; the air supplement bottle has higher control precision requirement, and if the air supplement is not timely or insufficient, the surge of the compressor is easily caused, and safety accidents are caused; the special working medium may harm the environment, and if the air supplement bottle is adopted for recycling, certain potential safety hazard exists.
SUMMERY OF THE UTILITY MODEL
In view of the above disadvantages and shortcomings of the prior art, the present invention provides an air source device for a closed experimental system of a compressor, which can realize air supplement and air release of the closed experimental system of the compressor by arranging an air supplement unit and an air release unit; the self-circulation of the working medium and the recovery of the working medium can be realized by arranging the voltage stabilizing unit; the pressure fluctuation at the outlet of the tested compressor is dynamically monitored, and the quick surge relief of the tested compressor can be realized by operating the main air release valve. The above characteristics of the utility model, can effectively extend the test capability of compressor closed experimental system to the security of air supply unit has effectively been improved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an air source device for a closed experimental system of a compressor, which comprises a tested compressor, wherein an air inlet of the tested compressor is communicated with an air outlet of the tested compressor through a compressed gas pipeline, the compressed gas pipeline is at least provided with a flowmeter, a pressure reducing valve and a heat exchanger, and the air inlet and the air outlet of the tested compressor are both provided with pressure sensors,
the air source device comprises an air supplementing unit, an air discharging unit and a pressure stabilizing unit, wherein,
the air supply unit comprises an air supply and storage tank, a pressure sensor is arranged in the air supply and storage tank, the air supply and storage tank is communicated with the compressed gas pipeline through an air supply pipeline, and an air supply stop valve and an air supply flow regulating valve set are arranged on the air supply pipeline;
-the air bleeding unit comprises a buffer tank, a pressure sensor is arranged in the buffer tank, the buffer tank is communicated with the compressed gas pipeline through an air bleeding pipeline, and an air bleeding stop valve and an air bleeding valve group are arranged on the air bleeding pipeline;
the pressure stabilizing unit includes a pressure stabilizing tank and a pressure stabilizing compressor, a pressure sensor is disposed in the pressure stabilizing tank, an air inlet pipeline of the pressure stabilizing compressor is communicated with the buffer tank, an air outlet pipeline of the pressure stabilizing compressor is communicated with the pressure stabilizing tank, the pressure stabilizing tank is further communicated with the air supply and storage tank and the buffer tank through an air vent pipeline, and a control valve is disposed at a pressure stabilizing vent of the pressure stabilizing tank, the air supply and storage tank, the buffer tank and the air vent pipeline.
The air source device for the closed experimental system of the compressor is suitable for testing a centrifugal or axial flow compressor, is not only suitable for stable working media such as air, carbon dioxide and nitrogen, but also suitable for inflammable, explosive and corrosive working media such as hydrogen and ammonia; by monitoring the inlet pressure of the tested compressor, if the inlet pressure is greater than the experimental required value of the tested compressor, the air release unit is started; if the inlet pressure is smaller than the experimental required value of the tested compressor, the air supplementing unit is started; the self-circulation of the working medium and the recovery of the working medium can be realized through the voltage stabilizing unit; the anti-surge requirement of the tested compressor can be realized through the air discharge unit.
Preferably, the position of the air supplement pipeline communicated with the compressed air pipeline is close to an air inlet of the tested compressor.
Preferably, the air supply and storage tank is further provided with an air supply pipeline with an air supply stop valve, and the air supply pipeline is communicated with an external working medium high-pressure air source. The air supply pipeline is used for supplying working media meeting the starting pressure condition of the closed type experiment system of the compressor to the air supply and storage tank.
Preferably, an air supply check valve is further arranged on the air supply pipeline. The air supply check valve is used for preventing compressed air in the compressed air pipeline from flowing back to the air supply pipeline.
Preferably, an air supply flow meter is further arranged on the air supply pipeline. The air supply flow meter is used for monitoring the air supply flow of the air supply pipeline.
Preferably, the air release pipeline is also provided with an air release check valve. A bleed check valve is configured to prevent gas in the bleed line from flowing back into the compressed gas line.
Preferably, the air supply flow regulating valve group at least comprises two flow regulating valves which are arranged in parallel and are respectively a main flow regulating valve and an auxiliary flow regulating valve. The auxiliary flow regulating valve is used for accurately regulating the air supplementing flow.
Preferably, the bleed valve group at least comprises two bleed regulating valves arranged in parallel, namely a main bleed valve and an auxiliary bleed valve. The main deflation valve is used for preventing the tested compressor from surging, and the auxiliary deflation valve is used for adjusting the inlet pressure of the tested compressor.
Preferably, the air inlet pipeline and the exhaust pipeline of the pressure stabilizing compressor are both provided with pressure stabilizing stop valves, and at least the exhaust pipeline of the pressure stabilizing compressor is provided with a pressurization check valve. The pressurization check valve is used for preventing the working medium in the surge tank from flowing back to the surge compressor.
Preferably, the pressure stabilizing tank is also provided with an exhaust pipeline with an exhaust valve. The exhaust pipeline is used for releasing the working medium of the surge tank.
Preferably, the pressure stabilizing compressor is a reciprocating compressor, and can be automatically started and stopped according to the exhaust pressure.
Compared with the prior art, the beneficial effects of the utility model reside in that: (1) the air source device for the closed experimental system of the compressor is not only suitable for stable working media such as air, carbon dioxide, nitrogen and the like, but also suitable for inflammable, explosive and corrosive working media such as hydrogen, ammonia and the like; the medium recycling function can be realized, and the testing capability of a closed experimental system of the compressor is effectively expanded; (2) the utility model provides an air supply device for compressor closed experimental system, through set up the steady voltage unit (including parts such as surge tank, compressor) in the air supply device, can accomplish the self-loopa of working medium to can realize the recovery function of working medium, the security is better; (3) the air source device for the closed type experiment system of the compressor, which is provided by the utility model, can realize the automatic air supplement and air release of the closed type experiment system of the compressor by arranging the air supplement unit and the air release unit in the air source device; (4) the utility model provides an air supply device for compressor closed experimental system, through monitoring the fluctuation of the compressor outlet pressure of being measured, and through the operation to the main bleed valve, can realize the quick speed of measuring the compressor and move back and surge; (5) the utility model provides an air supply unit can make sled dress formula to air make-up volume, pressure demand according to compressor closed experimental system, and degree of automation is higher.
Drawings
Fig. 1 is a schematic composition diagram of an air source device for a closed experimental system of a compressor according to the present invention;
FIG. 2 is a schematic view of the air source device of the present invention under a general working condition;
fig. 3 is a schematic view of the air source device of the present invention under high pressure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1, as a preferred embodiment, the air source device for the closed experimental system of the compressor of the present invention includes an air supply unit, an air release unit and a pressure stabilizing unit. The closed experimental system of the compressor comprises a tested compressor 25, wherein an air inlet of the tested compressor 25 is communicated with an air outlet of the tested compressor 25 through a compressed gas pipeline, at least a flow meter 26, a pressure reducing valve 27 and a heat exchanger 28 are arranged on the compressed gas pipeline, pressure sensors are arranged at the air inlet and the air outlet of the tested compressor 25, the flow meter 26 is used for monitoring the air inlet flow of the tested compressor 25, the pressure reducing valve 27 is used for reducing the exhaust pressure of the tested compressor 25, and the heat exchanger 28 is used for adjusting the air inlet temperature of the tested compressor 25. And the load compressor 25 is connected to a driving motor 23 through a high-speed gear box 24, and the driving motor 23 provides a driving force for the load compressor 25. The air source device monitors the actual inlet pressure of the tested compressor 25, and if the actual inlet pressure of the tested compressor 25 is larger than the experimental required value, the air release unit is started; and if the actual inlet pressure of the tested compressor 25 is smaller than the experimental required value, the air supplementing unit is started. The air source device completes the self-circulation of the working medium through the pressure stabilizing unit and is used for realizing the recovery function of the working medium. In addition, the air source device realizes the anti-surge requirement of the closed type experiment system of the compressor through the air discharging unit.
Specifically, as shown in fig. 1, the gas supplement unit includes: an air supply stop valve 16, an air supply storage tank 17, an air supply stop valve 18, a main flow regulating valve 19, an auxiliary flow regulating valve 20, an air supply check valve 21 and an air supply flow meter 22. The air supply and storage tank 17 is also provided with a pressure sensor, the air supply and storage tank 17 is communicated with a compressed gas pipeline through an air supply pipeline, the position of the air supply pipeline communicated with the compressed gas pipeline is close to an air inlet of a tested compressor 25, an air supply stop valve 18 is arranged on the air supply pipeline, an air supply flow regulating valve group formed by connecting a main flow regulating valve 19 and an auxiliary flow regulating valve 20 in parallel, an air supply check valve 21 and an air supply flow meter 22, the air supply stop valve 18 is used for controlling the opening and closing of the air supply pipeline, the air supply flow regulating valve group is used for regulating the air supply flow of the air supply pipeline, the air supply flow regulating valve group has a valve position feedback function, and the auxiliary flow regulating valve. The air supply check valve 21 is used for preventing compressed air in the compressed air pipeline from flowing back to the air supply pipeline; and a make-up air flow meter 22 for monitoring the make-up air flow of the make-up air pipeline. The air supply and storage tank 17 is further provided with an air supply pipeline with an air supply stop valve 16, and the air supply pipeline is communicated with an external working medium high-pressure air source and used for supplying working media meeting the starting pressure condition of the closed experimental system of the compressor to the air supply and storage tank 17.
As shown in fig. 1, the air bleeding unit includes: buffer tank 7, air release stop valve 8, main relief valve 9, auxiliary relief valve 10, air release check valve 11. The buffer tank 7 is also provided with a pressure sensor, the buffer tank 7 is communicated with a compressed gas pipeline through a gas release pipeline, and the gas release pipeline is provided with a gas release stop valve 8, a gas release valve group formed by connecting a main gas release valve 9 and an auxiliary gas release valve 10 in parallel and a gas release check valve 11. The deflation stop valve 8 is used for controlling the opening and closing of the deflation pipeline, the deflation valve bank is used for adjusting the deflation flow rate of the gas supply pipeline, the deflation valve bank has a valve position feedback function, the main deflation valve 9 is used for preventing surging of the tested compressor, and the auxiliary deflation valve 10 is used for adjusting the inlet pressure of the tested compressor. The bleed check valve 11 prevents gas in the bleed line from flowing back into the compressed gas line.
As shown in fig. 1, the voltage stabilization unit includes: the device comprises an exhaust valve 1, a pressure stabilizing tank 2, a pressure stabilizing check valve 3, a pressure stabilizing stop valve 4/6, a pressure stabilizing compressor 5, electromagnetic control valves 12-14 and a pressure stabilizing check valve 15. Still be equipped with pressure sensor in surge tank 2, the air inlet pipeline of steady voltage compressor 5 and buffer tank 2 intercommunication, exhaust pipe and surge tank 2 intercommunication still set up an exhaust pipe that has discharge valve 1 on surge tank 2 for the working medium of release surge tank 2. The pressure stabilizing tank 2 is also respectively communicated with the air supply and storage tank 17 and the buffer tank 7 through an air vent pipeline, and an electromagnetic control valve 12, 13 and 14 are respectively arranged at the pressure stabilizing air vent where the pressure stabilizing tank 2, the air supply and storage tank 17 and the buffer tank 7 are communicated with the air vent pipeline. A pressure stabilizing check valve 15 is also arranged at the pressure stabilizing vent of the air supplementing and storing tank 17. The air inlet pipeline and the exhaust pipeline of the pressure stabilizing compressor 5 are both provided with pressure stabilizing stop valves 4 and 6, and at least the exhaust pipeline of the pressure stabilizing compressor 5 is provided with a pressurization check valve 3 to prevent the working medium in the pressure stabilizing tank 2 from flowing back to the pressure stabilizing compressor.
Example 1
As shown in fig. 2, in the general working condition, in the experiment process of the closed experiment system of the compressor, firstly, the gas supply stop valve 16, the gas supply stop valve 18, the main flow control valve 19 and the auxiliary flow control valve 20 are opened, and the gas release stop valve 8, the main release valve 9 and the auxiliary release valve 10 are closed, when the pressure of the working medium in the compressed gas pipeline of the closed experiment system of the compressor reaches the experiment intake pressure requirement value of the tested compressor 25, the main flow control valve 19 and the auxiliary flow control valve 20 are closed. Then, when the working medium pressure in the gas storage tank 17 to be supplied reaches the required value of the gas supply pressure (the required value of the gas supply pressure is obtained according to the leakage amount of the compressor 25 to be measured and the experiment time), the gas supply stop valve 16 is closed.
After the driving motor 23 is started, the working medium is heated and pressurized in the tested compressor 25, then cooled through the heat exchanger 28, the pressure is reduced through the pressure reducing valve 27, and after the requirements of the inlet pressure and the temperature of the tested compressor 25 are met, the working medium is conveyed to the tested compressor 25 again.
In the experimental process, the air supply stop valve 18 and the air discharge stop valve 8 are kept fully open, automatic air supply and air discharge are realized by monitoring the actual inlet pressure of the tested compressor 25, if the actual inlet pressure of the tested compressor 25 is greater than the experimental required value, the main air discharge valve 9 and the auxiliary air discharge valve 10 are opened, the main flow regulating valve 19 and the auxiliary flow regulating valve 20 are closed, and the air discharge unit is opened; if the actual inlet pressure of the tested compressor 25 is smaller than the experimental required value, the main air release valve 9 and the auxiliary air release valve 10 are closed, the main flow regulating valve 19 and the auxiliary flow regulating valve 20 are opened, and the air supplementing unit is opened. If the outlet pressure of the tested compressor 25 is monitored to fluctuate in a large range, the tested compressor 25 is judged to enter a surge state, and the main deflation valve 9 is rapidly opened at the moment, so that the tested compressor 25 can rapidly relieve surge.
In the experiment process, the electromagnetic valve 13 at the pressure stabilizing vent of the buffer tank 7 is kept closed, the electromagnetic valve 14 at the pressure stabilizing vent of the air supply and storage tank 17 is kept opened, and the pressure of working media in the air supply and storage tank 17, the buffer tank 7 and the pressure stabilizing tank 2 is monitored in real time. If the pressure in the pressure stabilizing tank 2 is lower than the pressure in the air supply and storage tank 17, closing the electromagnetic valve 12 at the pressure stabilizing vent of the pressure stabilizing tank 2, operating the pressure stabilizing compressor 5, pressurizing the working medium in the buffer tank 7, and then flowing into the pressure stabilizing tank 2, and when the pressure of the working medium in the pressure stabilizing tank 2 reaches an experimental required value (the experimental required value is determined according to experimental time and air supply amount and can be manually set), stopping the operation of the pressure stabilizing compressor 5, opening the electromagnetic valve 12, and allowing the working medium to flow into the air supply and storage tank 17 from the pressure stabilizing tank 2 under the action of pressure difference; if the pressure of the working medium in the buffer tank 7 is greater than the actual inlet pressure of the tested compressor 25, the pressure stabilizing compressor 5 operates, and after part of the working medium in the buffer tank 7 is extracted and pressurized, the working medium flows into the pressure stabilizing tank 2.
The utility model discloses an air supply unit can be through the actual inlet pressure of monitoring by pressure compressor 25, adjusts main bleed valve 9, supplementary bleed valve 10, main flow control valve 19 and supplementary flow control valve 20's aperture, realizes opening of tonifying qi unit and gassing unit and stops.
The utility model discloses an air supply unit can be through monitoring by the fluctuation of pressure measurement compressor 25 export pressure, opens main bleed valve 9 fast, realizes in the experimental system by the automation of pressure measurement compressor 25 and move back the breathing a.
The utility model discloses an air supply unit can realize tonifying qi working medium self-loopa through the pressure of monitoring tonifying qi gas holder 17, buffer tank 7 and surge tank 2 interior working medium, through opening and close surge compressor 5 and through opening and close solenoid valve 12.
Example 2
Referring to fig. 3, the difference between this embodiment and embodiment 1 is that in this embodiment, because the tested compressor 25 has a high test pressure, the closed test system of the compressor is in a high-pressure working condition, the pressure stabilizing unit of the air source device does not operate during the test, the pressures of the working mediums in the buffer tank 7 and the pressure stabilizing tank 2 are low, the pressure in the air replenishing and storing tank 17 is high (ensuring the air replenishing amount of the tested compressor 25 and the requirement of the test time), the electromagnetic valve 14 keeps in a closed state, the electromagnetic valves 12 and 13 keep in an open state, and the working mediums flow into the buffer tank 7 and the pressure stabilizing tank 2 through the air releasing unit for storage.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An air source device for a closed experimental system of a compressor, which comprises a tested compressor, wherein an air inlet of the tested compressor is communicated with an air outlet of the tested compressor through a compressed gas pipeline, the compressed gas pipeline is at least provided with a flowmeter, a pressure reducing valve and a heat exchanger, and the air inlet and the air outlet of the tested compressor are both provided with pressure sensors,
the air source device comprises an air supplementing unit, an air discharging unit and a pressure stabilizing unit, wherein,
the air supply unit comprises an air supply and storage tank, a pressure sensor is arranged in the air supply and storage tank, the air supply and storage tank is communicated with the compressed gas pipeline through an air supply pipeline, and an air supply stop valve and an air supply flow regulating valve set are arranged on the air supply pipeline;
-the air bleeding unit comprises a buffer tank, a pressure sensor is arranged in the buffer tank, the buffer tank is communicated with the compressed gas pipeline through an air bleeding pipeline, and an air bleeding stop valve and an air bleeding valve group are arranged on the air bleeding pipeline;
the pressure stabilizing unit includes a pressure stabilizing tank and a pressure stabilizing compressor, a pressure sensor is disposed in the pressure stabilizing tank, an air inlet pipeline of the pressure stabilizing compressor is communicated with the buffer tank, an air outlet pipeline of the pressure stabilizing compressor is communicated with the pressure stabilizing tank, the pressure stabilizing tank is further communicated with the air supply and storage tank and the buffer tank through an air vent pipeline, and a control valve is disposed at a pressure stabilizing vent of the pressure stabilizing tank, the air supply and storage tank, the buffer tank and the air vent pipeline.
2. The gas source arrangement of claim 1, wherein the gas make-up line is in communication with the compressed gas line at a location proximate to an inlet of the subject compressor.
3. The gas source apparatus as claimed in claim 1, wherein the gas supply tank is further provided with a gas supply line having a gas supply shutoff valve, the gas supply line being in communication with an external high pressure source of working medium.
4. The air supply device as defined in claim 1, wherein said air supply line further comprises an air supply check valve.
5. The air supply system as defined in claim 1, wherein the air supply line further includes an air supply flow meter.
6. The air supply system according to claim 1 wherein said bleed line further includes a bleed check valve.
7. The air supply device according to claim 1, wherein the air supply flow regulating valve set has a valve position feedback function, and comprises at least two flow regulating valves arranged in parallel, namely a main flow regulating valve and an auxiliary flow regulating valve.
8. The air supply device according to claim 1, wherein the bleed valve set has a valve position feedback function, and comprises at least two bleed regulating valves arranged in parallel, namely a main bleed valve and an auxiliary bleed valve.
9. The air supply device according to claim 1, wherein the inlet pipeline and the outlet pipeline of the stabilized compressor are provided with stabilized pressure stop valves, and at least the outlet pipeline of the stabilized compressor is provided with a pressurization check valve.
10. The air supply arrangement according to claim 1, wherein said surge tank is further provided with a vent line having a vent valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922086137.4U CN210665035U (en) | 2019-11-28 | 2019-11-28 | Air source device for closed experimental system of compressor |
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| CN201922086137.4U CN210665035U (en) | 2019-11-28 | 2019-11-28 | Air source device for closed experimental system of compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927819A (en) * | 2020-10-15 | 2020-11-13 | 中国航发上海商用航空发动机制造有限责任公司 | Combined anti-surge method and multistage axial flow compressor experiment platform |
| CN114279107A (en) * | 2021-12-24 | 2022-04-05 | 中国科学院工程热物理研究所 | Open type heat pump electricity storage system and method |
-
2019
- 2019-11-28 CN CN201922086137.4U patent/CN210665035U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927819A (en) * | 2020-10-15 | 2020-11-13 | 中国航发上海商用航空发动机制造有限责任公司 | Combined anti-surge method and multistage axial flow compressor experiment platform |
| CN114279107A (en) * | 2021-12-24 | 2022-04-05 | 中国科学院工程热物理研究所 | Open type heat pump electricity storage system and method |
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