CN212487034U - Gas pressure stabilizer and water cooling system of wind power generation converter - Google Patents
Gas pressure stabilizer and water cooling system of wind power generation converter Download PDFInfo
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- CN212487034U CN212487034U CN202021014855.7U CN202021014855U CN212487034U CN 212487034 U CN212487034 U CN 212487034U CN 202021014855 U CN202021014855 U CN 202021014855U CN 212487034 U CN212487034 U CN 212487034U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a gas pressure stabilizing device and a water cooling system of a wind power generation converter, wherein the gas pressure stabilizing device comprises a gas compressor, a second electromagnetic valve, a first pressure sensor, an exhaust valve, a buffer tank and a first electromagnetic valve which are connected in sequence; the air inlet of the first electromagnetic valve is communicated with a pipeline between the gas compressor and the second electromagnetic valve; when the first pressure sensor monitors that the pressure in the buffer tank is lower than the preset air supplement pressure, the first electromagnetic valve is closed, the second electromagnetic valve is opened, and the gas compressor is started to supplement air to the buffer tank; when the pressure monitored by the first pressure sensor is higher than the preset stop pressure, the first electromagnetic valve is opened to release the pressure of the outlet of the gas compressor, and the second electromagnetic valve and the gas compressor are closed at the same time. The utility model discloses can realize automatic air supplement, the exhaust function of system, the reliability is high, has overcome the problem that the system needs frequent artifical tonifying qi, and degree of automation is high, is applicable to present unmanned on duty, the position wind power system far away more.
Description
Technical Field
The utility model belongs to the technical field of voltage regulator device, concretely relates to gaseous voltage regulator device and wind power generation converter water cooling system.
Background
China has rich wind energy resources, and the wind energy has the characteristics of cleanness, reproducibility and the like, and is increasingly paid attention. In recent years, the wind power industry in China is rapidly developed, and newly increased installed capacity lasts for many years and is the first global place. The current wind power generation technology is developing towards the direction of single machine power increase, the converter is used as a main heating component and needs to be cooled in time, and water cooling is the most efficient cooling mode at present.
Most of the existing water cooling systems for wind power converters adopt an expansion tank to stabilize the system pressure, when the system pressure fluctuates, gas in the expansion tank is compressed or expanded until the gas pressure in the expansion tank and the water pressure of the system reach balance, and the expansion tank plays a role in regulating and balancing the system pressure in the process.
The expansion tank is pre-filled with gas at a certain pressure when the expansion tank leaves a factory, but after the expansion tank works for a long time, the gas nozzle of the expansion tank is easily damaged and further loses the gas, so that the system cannot work normally, and in addition, the gas supplementing operation is required. The existing wind power generation system is generally remote in position and is unattended in daily life, and the phenomena of air leakage of an expansion tank, air supplement and the like are extremely inconvenient.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides a gaseous voltage regulator device and wind power generation converter water cooling system can realize automatic air supplement, the exhaust function of system, and the reliability is high, and degree of automation is high, has overcome the problem that the system needs frequent artifical tonifying qi, is applicable to present unmanned on duty, the position wind power system far away more.
In order to realize the technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
in a first aspect, the present invention provides a gas pressure stabilizer, including: the device comprises a gas compressor, a second electromagnetic valve, a check valve, a first pressure sensor, an exhaust valve, a buffer tank and a first electromagnetic valve which are connected in sequence;
the gas inlet of the first electromagnetic valve is communicated with a pipeline between the gas compressor and the second electromagnetic valve;
when the first pressure sensor monitors that the pressure of the buffer tank is lower than the preset air supplement pressure, the first electromagnetic valve is closed, the second electromagnetic valve is opened, and the gas compressor is started;
when the first pressure sensor monitors that the pressure of the buffer tank is higher than the preset stop pressure, the first electromagnetic valve is opened to release the pressure of the outlet of the gas compressor, and the second electromagnetic valve and the gas compressor are closed at the same time.
Optionally, the gas pressure stabilizing device further comprises a gas inlet filter element, and the gas inlet filter element is arranged at the gas inlet of the gas compressor.
Optionally, the gas pressure stabilizing device further comprises a check valve disposed between the second solenoid valve and the exhaust valve.
In a second aspect, the utility model provides a wind power generation converter water cooling system, include: a circulation pump, a valve, an air cooler, a circulation pipeline, a water replenishing pipeline, and the gas pressure stabilizing device of any one of the first aspect;
the inlet end of the circulating pump is connected with the wind power generation converter, and the outlet end of the circulating pump is connected with the inlet end of the valve;
the inlet end of the air cooler is connected with one of the outlet ends of the valves, and the outlet end of the air cooler is connected with the inlet end of the circulating pipeline;
the inlet end of the circulating pipeline is also connected with the other outlet end of the valve, and the outlet end of the circulating pipeline is used for being connected with the wind power generation converter;
two ends of the water replenishing pipeline are respectively connected with the outlet end of the circulating pipeline and the circulating pump;
and the gas pressure stabilizing device is connected with the water replenishing pipeline.
Optionally, the water replenishing pipeline comprises: a raw water pump, a raw water tank and a water replenishing pump which are connected in sequence;
the raw water pump is used for connecting a water source;
the outlet end of the water replenishing pump is connected with the buffer tank of the gas pressure stabilizing device, and the inlet is connected with the raw water tank.
Optionally, the water cooling system of the wind power generation converter comprises 2 circulating pumps which are independently arranged, wherein one circulating pump serves as a main circulating pump, and the other circulating pump serves as a standby circulating pump.
Optionally, the water cooling system of the wind power converter further comprises a first temperature sensor and a second temperature sensor;
the first temperature sensor is arranged at the outlet end of the circulating pipeline;
the second temperature sensor is provided at an inlet end of the circulation pump.
Optionally, the outlet end of the circulation pump is provided with a second pressure sensor for monitoring the outlet pressure of the circulation pump in real time.
Optionally, the water cooling system of the wind power converter further comprises a filter, and the filter is connected with the outlet end of the air cooler.
Optionally, the valve is an electric three-way valve or a thermostatic valve.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a gaseous steady voltage system cooperatees with wind power generation converter water cooling system in the practical application process, can solve the easy gas leakage of conventional converter cooling system expansion tank, the trouble scheduling problem of tonifying qi, can realize the automatic tonifying qi of system and exhaust, and degree of automation is high, has improved the system reliability.
The utility model provides a wind power generation converter water cooling system adopts gaseous steady voltage system to replace the expansion tank to carry out the steady voltage to the system, need not artifical tonifying qi, can show the adaptability that improves converter cooling system under remote area, unmanned on duty condition, has enlarged the range of application of system.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings, in which:
FIG. 1 is a schematic view showing the structure of a gas pressure stabilizer in example 1;
fig. 2 is one of the schematic structural diagrams of the water cooling system of the wind power generation converter in embodiment 2;
FIG. 3 is a second schematic structural diagram of a wind power generation converter water cooling system in embodiment 2;
wherein:
1-1-main circulating pump, 1-2-standby circulating pump, 2-second pressure sensor, 3-valve, 4-air cooler, 5-filter, 6-first temperature sensor, 7-converter, 8-second temperature sensor, 9-raw water pump, 10-raw water tank, 11-water replenishing pump, 12-air inlet filter element, 13-gas compressor, 14-first electromagnetic valve, 15-second electromagnetic valve, 16-check valve, 17-first pressure sensor, 18-exhaust valve and 19-buffer tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.
The following description is made in detail for the application of the principles of the present invention with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the embodiment of the present invention provides a gas voltage stabilizer, including: a gas compressor 13, a second electromagnetic valve 15, a first pressure sensor 17, an exhaust valve 18 and a buffer tank 19, and a first electromagnetic valve 14, which are connected in this order;
the second electromagnetic valve 15 is a normally open electromagnetic valve;
an air inlet of the first electromagnetic valve 14 is communicated with a pipeline between the gas compressor 13 and the second electromagnetic valve 15, and the first electromagnetic valve 14 is a normally closed electromagnetic valve;
when the first pressure sensor 17 monitors that the pressure of the buffer tank 19 is lower than the preset air supplement pressure, the first electromagnetic valve 14 is closed, the second electromagnetic valve 15 is opened, and the gas compressor 13 is started, wherein the gas compressor 13 can be an air compressor;
when the first pressure sensor 17 detects that the pressure of the buffer tank 19 is higher than the preset stop pressure, the first electromagnetic valve 14 is opened to release the pressure at the outlet of the gas compressor 13, and the second electromagnetic valve 15 and the gas compressor 13 are closed.
In a specific application, the first pressure sensor 17 may be a pressure transmitter.
In a specific implementation manner of this embodiment, the gas pressure stabilizing device further includes a gas inlet filter element 12, the gas inlet filter element 12 is disposed at a gas inlet of the gas compressor 13, and in an actual use process, gas is firstly filtered by the gas inlet filter element 12, so that gas purity is greatly improved.
In a specific implementation manner of this embodiment, the gas pressure stabilizing device further includes a check valve 16, where the check valve 16 is disposed between the second electromagnetic valve 15 and the exhaust valve 18, and is used for allowing air to pass when air is supplied and stopping air reversely after air supply is completed.
In summary, the working process of the gas pressure stabilizer in this embodiment is specifically as follows:
monitoring the gas pressure at the top of the buffer tank 19 by using a first pressure sensor 17, and if the pressure is between the inlet pressure set by the gas compressor 13 and the outlet pressure set by the exhaust valve 18, indicating that the pressure of the system is normal and the gas pressure stabilizing device does not produce any action;
when the gas pressure at the top of the buffer tank 19 rises to the exhaust pressure set by the exhaust valve 18, the exhaust valve 18 is opened to exhaust, and the pressure of the whole system is ensured not to be too high.
When the gas pressure at the top of the buffer tank 19 is reduced to the starting pressure of the gas compressor 13 and the opening pressure of the second electromagnetic valve 15, the gas compressor 13 is operated, the second electromagnetic valve 15 is opened, and air is supplemented into the buffer tank 19, so that the pressure of the pressure stabilizing device is continuously increased.
When the pressure rises to the stop pressure of the gas compressor 13, the gas compressor 13 stops running and does not supplement gas in the system any more, the second electromagnetic valve 15 is closed, the first electromagnetic valve 14 is opened, and residual gas at the outlet of the air compressor is discharged to prepare for the next running of the gas compressor 13.
Example 2
The embodiment of the utility model provides an in provide a wind power generation converter water cooling system includes: a circulating pump, an air cooler 4, a circulating pipeline, a valve 3, a water replenishing pipeline and the gas pressure stabilizing device in the embodiment 1;
the inlet end of the circulating pump is connected with the wind power generation converter 7, and the outlet end of the circulating pump is connected with the inlet end of the valve 3 and used for providing circulating power and promoting the cooling water to circulate continuously;
the inlet end of the air cooler 4 is connected with one of the outlet ends of the valves 3, and the outlet end of the air cooler is connected with the inlet end of the circulating pipeline;
the inlet end of the circulating pipeline is also connected with the other outlet end of the valve 3, and the outlet end of the circulating pipeline is used for being connected with a wind power generation converter 7;
two ends of the water replenishing pipeline are respectively connected with the outlet end of the circulating pipeline and the circulating pump;
and the gas pressure stabilizing device is connected with the water replenishing pipeline.
In an embodiment of the present invention, the water replenishing pipeline includes: a raw water pump 9, a raw water tank 10 and a water replenishing pump 11 which are connected in sequence; the raw water pump 9 is used for connecting a water source (such as pure water); the outlet end of the water replenishing pump is connected with a buffer tank 19 of the gas pressure stabilizing device, and the inlet is connected with the raw water tank 10; when the system needs water supplement, pure water is supplemented through the raw water pump 9, the raw water tank 10 and the water supplement pump 11 and flows through the buffer tank 19 to the inlet of the circulating pump to supplement water for the whole system; during the water replenishing and discharging process, the exhaust valve 18 can be opened to improve the water replenishing and discharging speed. In the actual use process, the lower part of the buffer tank 19 is water, and the upper part is gas.
In a specific embodiment of this embodiment, the first pressure sensor 17 is used to monitor the gas pressure at the top of the buffer tank 19, and if the pressure is between the inlet pressure set by the gas compressor 13 and the outlet pressure set by the outlet valve 18, it indicates that the system pressure is normal and the gas pressure stabilizer does not act;
as the water temperature gradually increases, the volume of cooling water expands, causing the liquid level in the buffer tank 19 to increase and the gas pressure at the top of the tank to increase. When the pressure rises to the exhaust pressure set by the exhaust valve 18, the exhaust valve 18 is opened to exhaust, and the pressure of the whole system is ensured not to be too high.
When the water temperature of the system is gradually reduced, the volume of the cooling water is reduced, so that the liquid level of the buffer tank 19 is reduced, and the air pressure at the top of the tank is reduced. When the pressure is reduced to the starting pressure of the gas compressor 13 and the opening pressure of the second electromagnetic valve 15, the gas compressor 13 is operated, the second electromagnetic valve 15 is opened, and air is supplemented into the buffer tank 19, so that the pressure of the pressure stabilizing device is continuously increased. When the pressure rises to the stop pressure of the gas compressor 13, the gas compressor 13 stops running and does not supplement gas in the system any more, the second electromagnetic valve 15 is closed, the first electromagnetic valve 14 is opened, and residual gas at the outlet of the air compressor is discharged to prepare for the next running of the gas compressor 13.
In a specific manner of this embodiment, as shown in fig. 2, the water cooling system of the wind power generation converter includes 1 circulating pump, the water cooling system of the wind power generation converter 7 is generally installed at the top of the wind tunnel, and the installation space is limited; on the basis, a single circulating pump is arranged, so that the volume of the system can be greatly compressed, and the arrangement is convenient; the circulating pump selects an import brand, and the single pump operation can also meet the characteristic of high system reliability requirement.
In another specific implementation manner of this embodiment, in order to improve system reliability, as shown in fig. 1, the water cooling system of the wind power generation converter includes 2 circulation pumps independently arranged, where one circulation pump serves as a main circulation pump 1-1, and the other circulation pump serves as a standby circulation pump 1-2, a flow rate of a single circulation pump can meet system requirements, and 100% redundancy is met, and the main circulation pump 1-1 and the standby circulation pump 1-2 can be periodically switched automatically and in a fault.
In a specific implementation manner of this embodiment, the water cooling system of the wind power converter further includes a first temperature sensor 6 and a second temperature sensor 8; the first temperature sensor 6 is arranged at the outlet end of the circulating pipeline; the second temperature sensor 8 is arranged at the inlet end of the circulating pump; namely, a first temperature sensor 6 is arranged at the inlet of the converter 7, a second temperature sensor 8 is arranged at the outlet of the converter, the water temperature of inlet water and outlet water of the converter 7 is monitored in real time, and when the water temperature of the inlet water and the water temperature of the outlet water are higher, the system gives an alarm. The first temperature sensor 6 and the second temperature sensor 8 can be temperature transmitters.
In a specific implementation manner of this embodiment, a second pressure sensor 2 is disposed at an outlet end of the circulation pump, so as to monitor the outlet pressure of the circulation pump in real time; the second pressure sensor 2 can be a pressure gauge.
In a specific implementation manner of this embodiment, impurities possibly existing in the system are filtered, and the filter 5 is arranged at the outlet, and the water cooling system of the wind power converter further comprises the filter 5, and the filter 5 is connected with the outlet end of the air cooler 4.
In a specific implementation of embodiment, as shown in fig. 1 and 2, valve 3 is electric three-way valve, and electric three-way valve can be according to the actual temperature in the system and the result of predetermineeing the temperature contrast, and the flow proportion of air cooler 4 and circulating line is arrived in automatically regulated, and specific accommodation process is prior art, the utility model discloses do not do too much redundantly.
In another embodiment of this embodiment, as shown in fig. 3, valve 3 is the temperature-sensing valve, and at the practical application in-process, can choose for use self-operated temperature-sensing valve, compares electric three-way valve, and self-operated temperature-sensing valve mainly relies on inside temperature sensing element monitoring system temperature, and then adjusts business turn over air cooler 4, circulation pipeline's flow, does not need extra power supply, and specific accommodation process is prior art, the utility model discloses do not do too much redundantly.
When the system normally operates, as shown in fig. 3, when a temperature sensing element in the thermostat monitors that the temperature of the system is low and does not reach the opening temperature of the thermostat, water flow at the outlet of the main circulating pump 1-1 does not pass through the air cooler 4 for heat dissipation, directly enters a circulating pipeline through the filter 5, and finally flows into the converter 7;
when a temperature sensing element in the temperature control valve monitors that the temperature of the system is higher and reaches the opening temperature of the temperature control valve, the temperature control valve is partially opened, part of water flow at the outlet of the main circulating pump 1-1 is radiated by the air cooler 4, and part of the water flow directly enters a circulating pipeline through the filter 5, and the water flow are converged and then flow into the converter 7;
when a temperature sensing element in the temperature control valve monitors that the temperature of the system is higher and reaches the full opening temperature of the temperature control valve, the temperature control valve is fully opened, all water flow at the outlet of the main circulating pump 1-1 is radiated by the air cooler 4, enters the filter 5 and finally flows into the converter 7.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A gas pressure stabilizing device, comprising: the device comprises a gas compressor, a second electromagnetic valve, a check valve, a first pressure sensor, an exhaust valve, a buffer tank and a first electromagnetic valve which are connected in sequence;
the gas inlet of the first electromagnetic valve is communicated with a pipeline between the gas compressor and the second electromagnetic valve;
when the first pressure sensor monitors that the pressure of the buffer tank is lower than the preset air supplement pressure, the first electromagnetic valve is closed, the second electromagnetic valve is opened, and the gas compressor is started;
when the first pressure sensor monitors that the pressure of the buffer tank is higher than the preset stop pressure, the first electromagnetic valve is opened to release the pressure of the outlet of the gas compressor, and the second electromagnetic valve and the gas compressor are closed at the same time.
2. A gas pressure regulating device according to claim 1, characterized in that: the gas pressure stabilizing device further comprises a gas inlet filter element, and the gas inlet filter element is arranged at the gas inlet of the gas compressor.
3. A gas pressure regulating device according to claim 1, characterized in that: the gas pressure stabilizing device further comprises a check valve, and the check valve is arranged between the second electromagnetic valve and the exhaust valve.
4. A wind power generation converter water cooling system is characterized by comprising: a circulation pump, a valve, an air cooler, a circulation line, a water replenishing line, and the gas pressure stabilizing device according to any one of claims 1 to 3;
the inlet end of the circulating pump is connected with the wind power generation converter, and the outlet end of the circulating pump is connected with the inlet end of the valve; the inlet end of the air cooler is connected with one of the outlet ends of the valves, and the outlet end of the air cooler is connected with the inlet end of the circulating pipeline;
the inlet end of the circulating pipeline is also connected with the other outlet end of the valve, and the outlet end of the circulating pipeline is used for being connected with the wind power generation converter;
two ends of the water replenishing pipeline are respectively connected with the outlet end of the circulating pipeline and the circulating pump;
and the gas pressure stabilizing device is connected with the water replenishing pipeline.
5. The water cooling system for the converter of wind power generation as claimed in claim 4, wherein the water supply pipeline comprises: a raw water pump, a raw water tank and a water replenishing pump which are connected in sequence;
the raw water pump is used for connecting a water source;
the outlet end of the water replenishing pump is connected with the buffer tank of the gas pressure stabilizing device, and the inlet is connected with the raw water tank.
6. The wind power converter water cooling system of claim 4, wherein said wind power converter water cooling system comprises 2 independent circulation pumps, wherein one of said circulation pumps is a main circulation pump and the other is a backup circulation pump.
7. The wind power converter water cooling system according to claim 4, further comprising a first temperature sensor and a second temperature sensor;
the first temperature sensor is arranged at the outlet end of the circulating pipeline;
the second temperature sensor is provided at an inlet end of the circulation pump.
8. The water cooling system of the wind power converter according to claim 4, wherein: and a second pressure sensor is arranged at the outlet end of the circulating pump, so that the outlet pressure of the circulating pump is monitored in real time.
9. The water cooling system of the wind power converter according to claim 4, wherein: the wind power generation converter water cooling system further comprises a filter, and the filter is connected with the outlet end of the air cooler.
10. The water cooling system of the wind power converter according to claim 4, wherein: the valve is an electric three-way valve or a temperature control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021014855.7U CN212487034U (en) | 2020-06-05 | 2020-06-05 | Gas pressure stabilizer and water cooling system of wind power generation converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021014855.7U CN212487034U (en) | 2020-06-05 | 2020-06-05 | Gas pressure stabilizer and water cooling system of wind power generation converter |
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| Publication Number | Publication Date |
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| CN212487034U true CN212487034U (en) | 2021-02-05 |
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| CN202021014855.7U Active CN212487034U (en) | 2020-06-05 | 2020-06-05 | Gas pressure stabilizer and water cooling system of wind power generation converter |
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| CN (1) | CN212487034U (en) |
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- 2020-06-05 CN CN202021014855.7U patent/CN212487034U/en active Active
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