CN113530771A - Wind generating set external circulating cooling system utilizing underground water source - Google Patents

Wind generating set external circulating cooling system utilizing underground water source Download PDF

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Publication number
CN113530771A
CN113530771A CN202111003265.3A CN202111003265A CN113530771A CN 113530771 A CN113530771 A CN 113530771A CN 202111003265 A CN202111003265 A CN 202111003265A CN 113530771 A CN113530771 A CN 113530771A
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China
Prior art keywords
cooling
water
loop
water inlet
inlet pipe
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CN202111003265.3A
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CN113530771B (en
Inventor
王保刚
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KSB Shanghai Pump Co Ltd
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KSB Shanghai Pump Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/60—Cooling or heating of wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • 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

Abstract

The invention discloses an external circulating cooling system of a wind generating set by utilizing an underground water source, which is used for cooling a refrigerant loop in an internal cooling system of the wind generating set and also comprises a forced cooling circulating loop; the upper end of the forced cooling circulation loop is communicated with the refrigerant loop, and the lower end of the forced cooling circulation loop penetrates through the stratum and is immersed in an underground water source below the stratum; the forced cooling circulation loop is an open cooling loop. The invention solves the problem of low heat exchange efficiency of the existing air cooling unit, and simultaneously fully utilizes the monitoring and big data analysis functions of various sensors to ensure the safe operation and early warning prejudgment of the cooling system.

Description

Wind generating set external circulating cooling system utilizing underground water source
Technical Field
The invention relates to the technical field of wind generating sets, in particular to an external circulating cooling system of a wind generating set by utilizing an underground water source.
Background
Wind power generation is to convert kinetic energy of wind into mechanical kinetic energy and then to convert mechanical energy into electrical kinetic energy. As shown in fig. 1, a device required for wind power generation is called a wind turbine generator system, and a wind power drives a wind turbine blade (rotor 1) to rotate, and then drives a generator to generate power through a transmission device in a nacelle 2. However, due to the influence of wind and sand in some areas, the cooling effect of the air cooling system 3 and the difficulty in cleaning up the sediment of the wind and sand are reduced when the wind generating set is facing, and in other areas, the cooling capacity of the air cooling system is influenced by the natural environment after the power of the wind generating set is increased, and the heat dissipation capacity is often insufficient and the heat exchange is unstable.
In addition, as the power of the wind turbine generator sets is continuously increased, higher demands are made on the cooling intensity and the cooling efficiency of the forced cooling system of the wind turbine generator sets. Meanwhile, compared with a water cooling unit of wind power, the air cooling unit is large in size, heavy in weight and low in heat exchange efficiency.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the external circulating cooling system of the wind generating set by utilizing the underground water source, which solves the problem of low heat exchange efficiency of the existing air cooling set and simultaneously fully utilizes the monitoring and big data analysis functions of various sensors to ensure the safe operation and early warning prejudgment of the cooling system.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides an external circulating cooling system of a wind generating set by utilizing an underground water source, which is used for cooling a refrigerant loop in an internal cooling system of the wind generating set and also comprises a forced cooling circulating loop;
the upper end of the forced cooling circulation loop is communicated with the refrigerant loop, and the lower end of the forced cooling circulation loop penetrates through the stratum and is immersed in an underground water source below the stratum;
the forced cooling circulation loop is an open cooling loop.
Preferably, the open cooling loop comprises a water inlet pipe, a water outlet pipe, a pump unit and a frequency converter;
the upper ends of the water inlet pipe and the water outlet pipe are communicated with the refrigerant loop, and the lower ends of the water inlet pipe and the water outlet pipe are communicated with the underground water source;
the pump unit is arranged on the water inlet pipe, and the frequency converter is electrically connected with the pump unit.
Preferably, the water inlet pipe and the water outlet pipe are both provided with check valves to prevent water from flowing backwards.
Preferably, the refrigerant circuit includes a heat exchanger, and a cooling water circulation pipe communicating an inlet side and an outlet side of the heat exchanger;
the inlet side of the heat exchanger is communicated with the upper end of the water inlet pipe, and the outlet side of the heat exchanger is communicated with the upper end of the water outlet pipe.
The invention provides a wind generating set external circulation cooling system using underground water source, which is used for cooling a refrigerant loop in an internal cooling system of a wind generating set and also comprises a forced cooling circulation loop;
the upper end of the forced cooling circulation loop is communicated with the refrigerant loop, and the lower end of the forced cooling circulation loop penetrates through the stratum and is immersed in an underground water source below the stratum;
the forced cooling circulation loop is a closed cooling loop.
Preferably, the closed cooling loop comprises a water inlet pipe, a water outlet pipe, a pump unit and a frequency converter;
the upper ends of the water inlet pipe and the water outlet pipe are communicated with the refrigerant loop, and the lower ends of the water inlet pipe and the water outlet pipe are positioned in the underground water source and are communicated through a connecting pipe;
the pump unit is arranged on the water inlet pipe, and the frequency converter is electrically connected with the pump unit;
and a water supplementing interface is arranged on the water outlet pipe.
Preferably, the water inlet pipe and the water outlet pipe are both provided with check valves.
Preferably, the refrigerant circuit includes a heat exchanger, and a cooling water circulation pipe communicating an inlet side and an outlet side of the heat exchanger;
the inlet side of the heat exchanger is communicated with the upper end of the water inlet pipe, and the outlet side of the heat exchanger is communicated with the upper end of the water outlet pipe.
The invention provides a wind generating set external circulating cooling system utilizing an underground water source, which is used for cooling a refrigerant loop in an internal cooling system of a wind generating set and comprises a forced cooling circulating loop, a temperature sensor, a flowmeter, a pressure sensor, a signal collector and a cloud end;
the temperature sensor is used for measuring the temperature of the refrigerant medium in the refrigerant loop, the inflow and outflow temperatures of external cooling water in the forced cooling circulation loop and the operating temperature of the pump unit;
the flow meter is used for measuring the flow of the refrigerant medium in the refrigerant circuit;
the pressure sensor is used for measuring the working pressure in the forced cooling circulation loop;
the signal collector is used for receiving the measurement data of the temperature sensor, the flowmeter and the pressure sensor;
and the cloud end receives the measurement data received by the signal collector through the gateway, analyzes and diagnoses the measurement data, and monitors the working state of the circulating cooling system of the wind turbine generator.
Preferably, the forced cooling circulation loop is an open cooling loop or a closed cooling loop;
the open cooling loop comprises a water inlet pipe, a water outlet pipe, a pump unit and a frequency converter;
the upper ends of the water inlet pipe and the water outlet pipe are communicated with the refrigerant loop, and the lower ends of the water inlet pipe and the water outlet pipe are communicated with the underground water source;
the pump unit is arranged on the water inlet pipe, and the frequency converter is electrically connected with the pump unit; and/or
The closed cooling loop comprises a water inlet pipe, a water outlet pipe, a pump unit and a frequency converter;
the upper ends of the water inlet pipe and the water outlet pipe are communicated with the refrigerant loop, and the lower ends of the water inlet pipe and the water outlet pipe are positioned in the underground water source and are communicated through a connecting pipe;
the pump unit is arranged on the water inlet pipe, and the frequency converter is electrically connected with the pump unit; and/or
The refrigerant loop comprises a heat exchanger and a cooling water circulating pipe which communicates the inlet side and the outlet side of the heat exchanger;
the inlet side of the heat exchanger is communicated with the upper end of the water inlet pipe, and the outlet side of the heat exchanger is communicated with the upper end of the water outlet pipe; and/or
The temperature sensor comprises a first wireless temperature sensor and a second wireless temperature sensor which are arranged on the inlet side and the outlet side of the heat exchanger, a third wireless temperature sensor arranged at the upper end of the water inlet pipe, a fourth wireless temperature sensor arranged at the upper end of the water outlet pipe and a wired waterproof vibration temperature sensor arranged at the lower end of the water inlet pipe and positioned above the pump unit; and/or
The flowmeter is arranged on the outlet side of the heat exchanger; and/or
Pressure sensor is including locating on the inlet tube and being located wireless pressure sensor one, wireless pressure sensor two of upper and lower side of check valve are located on the outlet pipe and being located wireless pressure sensor three, wireless pressure sensor four of upper and lower side of check valve and locating the lower extreme of inlet tube is located the wired pressure sensor of pump unit below.
The invention provides a wind generating set external circulating cooling system utilizing underground water source, which is used for cooling a refrigerant loop in an internal cooling system of a wind generating set and comprises a forced cooling circulating loop, a water-cooling flushing mechanism, a sewage collecting tank and a sewage draining mechanism;
the upper end of the forced cooling circulation loop is attached to the outer side of the refrigerant loop, and the lower end of the forced cooling circulation loop penetrates through the stratum and is immersed in an underground water source below the stratum;
the water-cooling flushing mechanism is arranged above the refrigerant loop and used for spraying the refrigerant loop;
the sewage collecting tank is positioned below the refrigerant loop and used for collecting spray water;
the sewage draining mechanism is communicated with the sewage collecting tank and is used for discharging the spray water in the sewage collecting tank.
Preferably, the refrigerant circuit is an air cooler.
Preferably, the forced cooling circulation loop comprises a cooling water inlet pipe attached to the outer side of the air cooler, and a cooling water outlet pipe communicated with the cooling water inlet pipe and also attached to the outer side of the air cooler;
the lower ends of the cooling water inlet pipe and the cooling water outlet pipe are circularly communicated with an underground water source; through the formation and in communication with the groundwater source.
Preferably, the water-cooling flushing mechanism comprises a plurality of nozzles and corresponding cooling water inlet pipes, and the nozzles are positioned above the air cooler and used for spraying the air cooler.
Preferably, the cooling water inlet pipe and the cooling water outlet pipe are both provided with cooling water temperature sensors;
and a cooling water inlet pressure sensor is arranged on the cooling water inlet pipe.
Preferably, the wind generating set circulating cooling system further comprises a signal collector and a cloud end;
and the measurement data of the cooling water inlet pressure sensor and the cooling water temperature sensor are transmitted to the signal collector, and the signal collector transmits the measurement data to the cloud end.
The external circulating cooling system of the wind generating set utilizing the underground water source provided by the invention can adjust the cooling power of an external forced circulation loop by adopting a digital intelligent means so as to meet the requirements of real-time change of heat load and maximization of energy efficiency. The monitoring and big data analysis functions of various sensors are fully utilized to ensure the safe operation and early warning prejudgment of the cooling system. Meanwhile, by utilizing the underground water source, various water can be provided for the wind generating set, such as a fire-fighting system, a cleaning system, a water supply system and the like. The invention is not only suitable for collecting water of underground water source, but also suitable for cleaning water of low-temperature water source on any ground, such as rivers, lakes and seas.
Drawings
FIG. 1 is a schematic view of a prior art wind turbine generator set;
FIG. 2 is a schematic diagram of a first embodiment of an external circulation cooling system of a wind generating set using a ground water source according to the present invention;
FIG. 3 is a schematic diagram of a frame of the open cooling circuit of FIG. 2;
FIG. 4 is a schematic view of a second embodiment of the external circulation cooling system of the wind turbine generator system using the ground water source according to the present invention;
FIG. 5 is a schematic diagram of a framework of the closed cooling circuit of FIG. 3;
FIG. 6 is a schematic diagram of a third embodiment of the external circulation cooling system of the wind generating set using the underground water source according to the invention;
FIG. 7 is a schematic diagram of an external circulation cooling system of a wind generating set according to a fourth embodiment of the invention, which utilizes a ground water source.
Detailed Description
In order to better understand the technical solutions of the present invention, the following further describes the technical solutions of the present invention with reference to the accompanying drawings and examples.
Referring to fig. 2 and 3, in an external circulation cooling system of a wind turbine generator using ground water according to an embodiment of the present invention, a cooling circuit 5 in a cooling system inside a nacelle 4 of the wind turbine generator is cooled, and includes a forced cooling circulation circuit 100.
The forced cooling circulation circuit 100 has an upper end communicating with the refrigerant circuit 5 and a lower end penetrating the formation 101 and immersed in a groundwater source 102 below the formation 101.
The refrigerant circuit 5 includes a heat exchanger 6, and a cooling water circulation pipe 9 communicating an inlet side 7 and an outlet side 8 of the heat exchanger 6.
The forced cooling circulation circuit 100 is an open cooling circuit.
The open cooling loop comprises a water inlet pipe 10, a water outlet pipe 11, a pump unit 12 and a frequency converter 13.
The upper ends of the water inlet pipe 10 and the water outlet pipe 11 are respectively communicated with the inlet side 7 and the outlet side 8 of the heat exchanger 6, and the lower ends of the water inlet pipe 10 and the water outlet pipe 11 penetrate through the stratum 101 and are communicated with an underground water source 102 below the stratum 101.
The pump unit 12 is arranged on the water inlet pipe 10, and the frequency converter 13 is electrically connected with the pump unit 12.
Check valves 14 are provided on the water inlet pipe 10 and the water outlet pipe 11 to prevent the backflow of the cooling water.
The inlet side 7 of the heat exchanger 6 is connected with the pump unit 12 through the water inlet pipe 10 and the check valve 14, the pump unit 12 can directly suck, lift and pressurize water from the underground water source 102 and send the water to the heat exchanger 6, and after the water circularly absorbs heat and flows in the heat exchanger 6, the water is directly input from the outlet side 8 through the water outlet pipe 11 and the check valve 14 and returns to the underground water source 102.
Referring to fig. 3 and 4, a wind turbine external circulation cooling system using ground water according to a second embodiment of the present invention is used for cooling a refrigerant circuit 5 in a cooling system inside a nacelle 4 of a wind turbine generator system, and includes a forced cooling circulation circuit 100.
The forced cooling circulation circuit 100 has an upper end communicating with the refrigerant circuit 5 and a lower end penetrating the formation 101 and immersed in a groundwater source 102 below the formation 101.
The refrigerant circuit 5 includes a heat exchanger 6, and a cooling water circulation pipe 9 communicating an inlet side 7 and an outlet side 8 of the heat exchanger 6.
The forced cooling circulation circuit 100 is a closed cooling circuit.
When the cooling loop is closed, the cooling loop comprises a water inlet pipe 10, a water outlet pipe 11, a pump unit 12 and a frequency converter 13.
The upper ends of the water inlet pipe 10 and the water outlet pipe 11 are respectively communicated with the inlet side 7 and the outlet side 8 of the heat exchanger 6, and the lower ends of the water inlet pipe 10 and the water outlet pipe 11 penetrate through the stratum 101 to be positioned in the underground water source 102 and are communicated with each other through the connecting pipe 15, so that a loop is formed.
The pump unit 12 is arranged on the water inlet pipe 10, and the frequency converter 13 is electrically connected with the pump unit 12.
Check valves 14 are arranged on the water inlet pipe 10 and the water outlet pipe 11 respectively and used for preventing cooling water from flowing backwards, and a water supplementing interface 16 is arranged on the water outlet pipe 11.
The inlet side 7 of the heat exchanger 6 is connected with the pump unit 12 through the water inlet pipe 10 and the check valve 14, the pump unit 12 boosts pressure and circularly flows cooling water in the loop, the outlet side 8 is connected with the water supplementing interface 16 through the water outlet pipe 11, and the water supplementing interface 16 is used for supplementing water for the forced cooling circulation loop 100. The lower ends of the water inlet pipe 10 and the water outlet pipe 11 and the connecting pipe 15 are cooled in the underground water source 102, and the underground water source 102 absorbs the refrigerant heat of the wind generating set.
In order to be able to remove the gas in the forced cooling circulation circuit 100, an exhaust port 17 is installed at the highest position of the forced cooling circulation circuit 100.
With reference to fig. 6, a wind turbine external circulation cooling system using underground water according to a third embodiment of the present invention is used for cooling a refrigerant circuit 5 in a cooling system inside a nacelle 4 of a wind turbine, and includes a forced cooling circulation circuit, a temperature sensor, a flow meter, a pressure sensor, a signal collector, and a cloud end;
temperature sensors for measuring the temperature of the refrigerant medium in the refrigerant circuit 5, the inflow and outflow temperatures of the external cooling water in the forced cooling circulation circuit 100, and the operating temperature of the pump unit 12;
a flow meter 18 for measuring the flow of refrigerant medium in the refrigerant circuit 5;
a pressure sensor for measuring the operating pressure of the check valve 14 and the pump assembly 12;
a signal collector 19 for receiving the measurement data of the temperature sensor, the flow meter 18 and the pressure sensor;
and the cloud 20 is used for receiving the measurement data received by the signal collector 19 through the gateway, analyzing and diagnosing the measurement data, monitoring the working state of the circulating cooling system of the wind turbine generator, and performing early warning and prejudgment and troubleshooting.
The forced cooling circulation circuit 100 is an open cooling circuit or a closed cooling circuit;
the open cooling loop comprises a water inlet pipe 10, a water outlet pipe 11, a pump unit 12 and a frequency converter 13;
the upper ends of the water inlet pipe 10 and the water outlet pipe 11 are communicated with the refrigerant loop 5, and the lower ends are communicated with the underground water source 102;
the pump unit 12 is arranged on the water inlet pipe 10, and the frequency converter 13 is electrically connected with the pump unit 12; and/or
The closed cooling loop comprises a water inlet pipe 10, a water outlet pipe 11, a pump unit 12 and a frequency converter 13;
the upper ends of the water inlet pipe 10 and the water outlet pipe 11 are communicated with the refrigerant loop 5, and the lower ends are positioned in the underground water source 102 and communicated with each other through a connecting pipe 15;
the pump unit 12 is arranged on the water inlet pipe 10, and the frequency converter 13 is electrically connected with the pump unit 12; and/or
The refrigerant circuit 5 includes a heat exchanger 6, and a cooling water circulation pipe communicating an inlet side 7 and an outlet side 8 of the heat exchanger 6;
the inlet side 7 of the heat exchanger 6 is communicated with the upper end of a water inlet pipe 10, and the outlet side 8 of the heat exchanger 6 is communicated with the upper end of a water outlet pipe 11;
the temperature sensors comprise a first wireless temperature sensor 21 and a second wireless temperature sensor 22 which are arranged on the inlet side 7 and the outlet side 8 of the heat exchanger 6, a third wireless temperature sensor 23 which is arranged on the upper end of the water inlet pipe 10, a fourth wireless temperature sensor 24 which is arranged on the upper end of the water outlet pipe 11 and a wired waterproof vibration temperature sensor 25 which is arranged on the lower end of the water inlet pipe 10 and is positioned above the pump unit 12; and/or
The flow meter 18 is arranged on the outlet side 8 of the heat exchanger 6; and/or
The pressure sensors comprise a first wireless pressure sensor 26 and a second wireless pressure sensor 27 which are arranged on the water inlet pipe 10 and are positioned above and below the check valve 14, a third wireless pressure sensor 28 and a fourth wireless pressure sensor 29 which are arranged on the water outlet pipe 11 and are positioned above and below the check valve 14, and a wired pressure sensor 30 which is arranged at the lower end of the water inlet pipe 10 and is positioned below the pump unit 12.
In the wind turbine external circulation cooling system using groundwater provided in the third embodiment of the present invention, under the condition of changing refrigerant loads of different heat exchangers 6, the flow state of the pump unit 12 in the forced cooling circulation loop 100 needs to be regulated and controlled and remote cloud-monitored, and the specific work is as follows:
the cloud 20 measures the temperature of the refrigerant medium in the refrigerant circuit 5 through the first wireless temperature sensor 21 and the second wireless temperature sensor 22, and measures the flow rate of the refrigerant medium in the refrigerant circuit 5 through the flowmeter 18, so that the heat exchange quantity of the refrigerant medium in the refrigerant circuit 5 is obtained;
the cloud 20 measures the inflow temperature and the outflow temperature of the forced cooling circulation loop 100 through a third wireless temperature sensor 23 and a fourth wireless temperature sensor 24, and obtains the working flow value of the pump unit 12 through a third wireless pressure sensor 28 and a fourth wireless pressure sensor 29, so as to obtain the cooling load capacity of the forced cooling circulation loop 100;
when the heat exchange amount is inconsistent with the cooling load amount, the speed of the pump unit 12 is adjusted by the frequency converter 13, so that the flow output of the pump unit 12 is changed, and the optimal matching of the heat load of the refrigerant and the cooling load of the cooling water is realized through the optimal pump energy efficiency;
the cloud 20 monitors the working state of the check valve 14 through the first wireless pressure sensor 26 and the second wireless pressure sensor 27, monitors the inlet pressure of the pump unit 12 through the wired pressure sensor 30, and monitors the operating state of the pump unit 12 through the wired vibration temperature sensor 25;
the measurement signals of all the temperature sensors, the flow meter 18 and the pressure sensors are sent to the signal collector 19 and sent to the cloud 20 through the gateway, and the working state of the forced cooling circulation loop 100 is monitored, pre-warned and pre-judged and troubleshooting through data analysis and diagnosis of the cloud.
Referring to fig. 7, an external circulation cooling system of a wind turbine generator using underground water according to a fourth embodiment of the present invention includes a forced cooling circulation loop, a water-cooling flushing mechanism, a sewage collecting tank 31, and a sewage draining mechanism 32.
The upper end of the forced cooling circulation loop is attached to the outer side of the refrigerant loop, and the lower end of the forced cooling circulation loop penetrates through the stratum and is immersed in an underground water source below the stratum;
the water-cooling flushing mechanism is arranged above the refrigerant loop and used for spraying the refrigerant loop;
the sewage collecting tank 31 is positioned below the refrigerant loop and used for collecting spray water;
the sewage discharging mechanism 32 is communicated with the sewage collecting tank 31 to discharge the shower water in the sewage collecting tank 31.
The refrigerant circuit is an air cooler 33, and since the air cooler 33 directly exchanges heat with the air, if dust and dirt in the air adhere to the surface of the heat exchanger, the heat exchange effect of the heat exchanger is affected. Meanwhile, the manual cleaning at regular intervals also increases the labor cost.
The forced cooling circulation circuit includes a cooling water inlet pipe 34 attached to the outside of the air cooler 33, and a cooling water outlet pipe 35 communicating with the cooling water inlet pipe 34 and also attached to the outside of the air cooler 33;
the lower ends of the cooling water inlet pipe 34 and the cooling water outlet pipe 35 are circularly communicated with an underground water source; through the formation and in communication with a source of groundwater.
The water-cooled flushing mechanism comprises a plurality of nozzles 36 and corresponding cooling water inlet pipes 37, the nozzles 36 are positioned above the air cooler 33 for spraying the dust and dirt on the surface of the air cooler 33, and the flushed shower water and the dust and dirt on the surface are collected by the sewage collecting tank 31 and finally discharged by the sewage discharging mechanism 32.
Cooling water temperature sensors 38 are arranged on the cooling water inlet pipe 34 and the cooling water outlet pipe 35;
the cooling water inlet pipe 37 is provided with a cooling water inlet pressure sensor 39.
The external circulating cooling system of the wind generating set provided by the fourth embodiment further comprises a signal collector 40 and a cloud 41;
the measurement data of the cooling water inlet pressure sensor 39 and the cooling water temperature sensor 38 are transmitted to the signal collector 40, and the signal collector 40 transmits the measurement data to the cloud 41.
For the washing and water-cooling of the surface of the air cooler 33, the water-cooling and washing work can be performed by installing 2 cooling water temperature sensors 38 to measure the heat exchange load of the forced cooling circulation circuit according to the heat exchange effect of the air cooler 33, and the water-cooling and cleaning work amount is increased when the heat load is increased. The spray pressure of the water-cooled flushing mechanism was monitored by installing 2 cooling water inlet pressure sensors 39. Meanwhile, the water pressure of the water-cooling flushing mechanism can be increased according to the strength requirement on the surface of the air cooler 33 to be cleaned and cooled, and the efficient operation of the air cooler 33 is realized.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims (16)

1. The utility model provides an utilize external circulation cooling system of wind generating set of ground water source for cool off the cryogen return circuit in wind generating set's the inside cooling system, its characterized in that: the system also comprises a forced cooling circulation loop;
the upper end of the forced cooling circulation loop is communicated with the refrigerant loop, and the lower end of the forced cooling circulation loop penetrates through the stratum and is immersed in an underground water source below the stratum;
the forced cooling circulation loop is an open cooling loop.
2. The external circulation cooling system of a wind generating set using underground water source as claimed in claim 1, wherein: the open cooling loop comprises a water inlet pipe, a water outlet pipe, a pump unit and a frequency converter;
the upper ends of the water inlet pipe and the water outlet pipe are communicated with the refrigerant loop, and the lower ends of the water inlet pipe and the water outlet pipe are communicated with the underground water source;
the pump unit is arranged on the water inlet pipe, and the frequency converter is electrically connected with the pump unit.
3. The external circulation cooling system of a wind generating set using underground water source as claimed in claim 2, wherein: the water inlet pipe and the water outlet pipe are both provided with check valves.
4. The external circulation cooling system of a wind generating set using underground water source as claimed in claim 2, wherein: the refrigerant loop comprises a heat exchanger and a circulating pipe which communicates the inlet side and the outlet side of the heat exchanger;
the inlet side of the heat exchanger is communicated with the upper end of the water inlet pipe, and the outlet side of the heat exchanger is communicated with the upper end of the water outlet pipe.
5. The utility model provides an utilize external circulation cooling system of wind generating set of ground water source for cool off the cryogen return circuit in wind generating set's the inside cooling system, its characterized in that: the system also comprises a forced cooling circulation loop;
the upper end of the forced cooling circulation loop is communicated with the refrigerant loop, and the lower end of the forced cooling circulation loop penetrates through the stratum and is immersed in an underground water source below the stratum;
the forced cooling circulation loop is a closed cooling loop.
6. The external circulation cooling system of a wind generating set using underground water source as claimed in claim 5, wherein: the closed cooling loop comprises a water inlet pipe, a water outlet pipe, a pump unit and a frequency converter;
the upper ends of the water inlet pipe and the water outlet pipe are communicated with the refrigerant loop, and the lower ends of the water inlet pipe and the water outlet pipe are positioned in the underground water source and are communicated through a connecting pipe;
the pump unit is arranged on the water inlet pipe, and the frequency converter is electrically connected with the pump unit;
and a water supplementing interface is arranged on the water outlet pipe.
7. The external circulation cooling system of a wind generating set using underground water source as claimed in claim 6, wherein: the water inlet pipe and the water outlet pipe are both provided with check valves.
8. The external circulation cooling system of a wind generating set using underground water source as claimed in claim 6, wherein: the refrigerant loop comprises a heat exchanger and a circulating pipe which communicates the inlet side and the outlet side of the heat exchanger;
the inlet side of the heat exchanger is communicated with the upper end of the water inlet pipe, and the outlet side of the heat exchanger is communicated with the upper end of the water outlet pipe.
9. The utility model provides an utilize external circulation cooling system of wind generating set of ground water source for cool off the cryogen return circuit in wind generating set's the inside cooling system, its characterized in that: the system comprises a forced cooling circulation loop, a temperature sensor, a flowmeter, a pressure sensor, a signal collector and a cloud end;
the temperature sensor is used for measuring the temperature of the refrigerant medium in the refrigerant loop, the inflow and outflow temperatures of external cooling water in the forced cooling circulation loop and the operating temperature of the pump unit;
the flow meter is used for measuring the flow of the refrigerant medium in the refrigerant circuit;
the pressure sensor is used for measuring the working pressure in the forced cooling circulation loop;
the signal collector is used for receiving the measurement data of the temperature sensor, the flowmeter and the pressure sensor;
and the cloud end receives the measurement data received by the signal collector through the gateway, analyzes and diagnoses the measurement data, and monitors the working state of the circulating cooling system of the wind turbine generator.
10. The external circulation cooling system of a wind generating set using underground water source according to claim 9, wherein:
the forced cooling circulation loop is an open cooling loop or a closed cooling loop;
the open cooling loop comprises a water inlet pipe, a water outlet pipe, a pump unit and a frequency converter;
the upper ends of the water inlet pipe and the water outlet pipe are communicated with the refrigerant loop, and the lower ends of the water inlet pipe and the water outlet pipe are communicated with the underground water source;
the pump unit is arranged on the water inlet pipe, and the frequency converter is electrically connected with the pump unit; and/or
The closed cooling loop comprises a water inlet pipe, a water outlet pipe, a pump unit and a frequency converter;
the upper ends of the water inlet pipe and the water outlet pipe are communicated with the refrigerant loop, and the lower ends of the water inlet pipe and the water outlet pipe are positioned in the underground water source and are communicated through a connecting pipe;
the pump unit is arranged on the water inlet pipe, and the frequency converter is electrically connected with the pump unit; and/or
The refrigerant loop comprises a heat exchanger and a circulating pipe which communicates the inlet side and the outlet side of the heat exchanger;
the inlet side of the heat exchanger is communicated with the upper end of the water inlet pipe, and the outlet side of the heat exchanger is communicated with the upper end of the water outlet pipe; and/or
The temperature sensors comprise a first wireless temperature sensor and a second wireless temperature sensor which are arranged on the inlet side and the outlet side of the heat exchanger, a third wireless temperature sensor arranged at the upper end of the water inlet pipe, a fourth wireless temperature sensor arranged at the upper end of the water outlet pipe and a wired vibration temperature sensor which is arranged at the lower end of the water inlet pipe and is positioned above the pump unit; and/or
The flowmeter is arranged on the outlet side of the heat exchanger; and/or
Pressure sensor is including locating on the inlet tube and being located wireless pressure sensor one, wireless pressure sensor two of upper and lower side of check valve are located on the outlet pipe and being located wireless pressure sensor three, wireless pressure sensor four of upper and lower side of check valve and locating the lower extreme of inlet tube is located the wired pressure sensor of pump unit below.
11. The utility model provides an utilize external circulation cooling system of wind generating set of ground water source for cool off the cryogen return circuit in wind generating set's the inside cooling system, its characterized in that: comprises a forced cooling circulation loop, a water-cooling flushing mechanism, a sewage collecting tank and a sewage draining mechanism;
the upper end of the forced cooling circulation loop is attached to the outer side of the refrigerant loop, and the lower end of the forced cooling circulation loop penetrates through the stratum and is immersed in an underground water source below the stratum;
the water-cooling flushing mechanism is arranged above the refrigerant loop and used for spraying the refrigerant loop;
the sewage collecting tank is positioned below the refrigerant loop and used for collecting spray water;
the sewage draining mechanism is communicated with the sewage collecting tank and is used for discharging the spray water in the sewage collecting tank.
12. The external circulation cooling system of a wind generating set using underground water source as claimed in claim 11, wherein: the refrigerant circuit is an air cooler.
13. The external circulation cooling system of a wind generating set using ground water source according to claim 12, wherein: the forced cooling circulation loop comprises a cooling water inlet pipe attached to the outer side of the air cooler and a cooling water outlet pipe communicated with the cooling water inlet pipe and also attached to the outer side of the air cooler;
the lower ends of the cooling water inlet pipe and the cooling water outlet pipe are circularly communicated with an underground water source; through the formation and in communication with the groundwater source.
14. The external circulation cooling system of a wind generating set using underground water source as claimed in claim 13, wherein: the water-cooling flushing mechanism comprises a plurality of nozzles and corresponding cooling water inlet pipes, and the nozzles are located above the air cooler and used for spraying the air cooler.
15. The external circulation cooling system of a wind generating set using ground water source according to claim 14, wherein: the cooling water inlet pipe and the cooling water outlet pipe are respectively provided with a cooling water temperature sensor;
and a cooling water inlet pressure sensor is arranged on the cooling water inlet pipe.
16. The external circulation cooling system of a wind generating set using underground water source as claimed in claim 15, wherein: the wind generating set circulating cooling system further comprises a signal collector and a cloud end;
and the measurement data of the cooling water inlet pressure sensor and the cooling water temperature sensor are transmitted to the signal collector, and the signal collector transmits the measurement data to the cloud end.
CN202111003265.3A 2021-08-30 2021-08-30 External circulating cooling system of wind generating set by utilizing underground water source Active CN113530771B (en)

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Citations (6)

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CN103292519A (en) * 2013-06-30 2013-09-11 苏州市牛勿耳关电器科技有限公司 Internet-of-things ground source heat pump
US20130309093A1 (en) * 2011-02-04 2013-11-21 Hitachi, Ltd. Wind Turbine Generator System
CN109882366A (en) * 2019-02-20 2019-06-14 浙江大学 Wind power generating set
CN112112760A (en) * 2020-08-24 2020-12-22 淮阴工学院 Control system of wind power plant

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090094981A1 (en) * 2007-10-12 2009-04-16 General Electric Company Wind turbine geothermal heating and cooling system
KR20100053954A (en) * 2008-11-13 2010-05-24 이시영 Homoiothermal aerogenerator
US20130309093A1 (en) * 2011-02-04 2013-11-21 Hitachi, Ltd. Wind Turbine Generator System
CN103292519A (en) * 2013-06-30 2013-09-11 苏州市牛勿耳关电器科技有限公司 Internet-of-things ground source heat pump
CN109882366A (en) * 2019-02-20 2019-06-14 浙江大学 Wind power generating set
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