[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN107424747A - A kind of transformer forces hydrologic cycle cooling system and its control method - Google Patents

A kind of transformer forces hydrologic cycle cooling system and its control method Download PDF

Info

Publication number
CN107424747A
CN107424747A CN201710631029.3A CN201710631029A CN107424747A CN 107424747 A CN107424747 A CN 107424747A CN 201710631029 A CN201710631029 A CN 201710631029A CN 107424747 A CN107424747 A CN 107424747A
Authority
CN
China
Prior art keywords
cooling
water
transformer
temperature
cooling tower
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710631029.3A
Other languages
Chinese (zh)
Inventor
魏本刚
黄华
戴明秋
傅正财
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Jiaotong University
State Grid Shanghai Electric Power Co Ltd
East China Power Test and Research Institute Co Ltd
Original Assignee
Shanghai Jiaotong University
State Grid Shanghai Electric Power Co Ltd
East China Power Test and Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Jiaotong University, State Grid Shanghai Electric Power Co Ltd, East China Power Test and Research Institute Co Ltd filed Critical Shanghai Jiaotong University
Priority to CN201710631029.3A priority Critical patent/CN107424747A/en
Publication of CN107424747A publication Critical patent/CN107424747A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/40Structural association with built-in electric component, e.g. fuse
    • H01F27/402Association of measuring or protective means
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/08Cooling; Ventilating
    • H01F27/085Cooling by ambient air
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/08Cooling; Ventilating
    • H01F27/10Liquid cooling
    • H01F27/12Oil cooling
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/08Cooling; Ventilating
    • H01F27/10Liquid cooling
    • H01F27/16Water cooling
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/08Cooling; Ventilating
    • H01F27/22Cooling by heat conduction through solid or powdered fillings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/40Structural association with built-in electric component, e.g. fuse
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/40Structural association with built-in electric component, e.g. fuse
    • H01F27/402Association of measuring or protective means
    • H01F2027/406Temperature sensor or protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformer Cooling (AREA)

Abstract

The invention discloses a kind of transformer to force hydrologic cycle cooling system, including:The cooling device being connected with transformer, it is used for using the oil in cooling water cooling transformer oil pipe;The water replanishing device being connected with cooling device, it is used for the supplement that cooling water is carried out to the cooling device, and, the signal supervisory instrument being arranged on cooling device, water replanishing device and transformer, it is used to detect the water temperature in cooling device and water replanishing device, and the oil temperature in transformer.The present invention is used as the foundation of cooling device switching by pasta heat indicator on transformer and winding temperature indicating gage institute temperature displaying function, can effectively reflect that temperature change avoids additional temperature measuring equipment again in transformer, reduces control system hardware cost.The control method logic is concise, need not largely be calculated in control process, therefore control response speed is fast, control system is easy to operate, is suitably applied the operation of actual transformer station.

Description

A kind of transformer forces hydrologic cycle cooling system and its control method
Technical field
The present invention relates to the cooling device technical field of transformer, and in particular to a kind of transformer forces water circulation cooling system System and its control method.
Background technology
With urban development and expansion, the characteristics of large size city is densely populated, high building stands in great numbers, electric load density is high and Show simultaneously the characteristics of land resource scarcity at the load center of city.Infrastructure voltage levels Large Copacity transformer station into To meet the solution of the ever-increasing electric load demand in city.Underground substation station equipment characteristics of compact layout, to equipment Operational reliability and criteria of noise control are high.According to common integrated radiating mode, then it is larger to require that transformer room is set Inlet and outlet area, and take strong-force exhaust measure to improve radiating, this will increase the difficulty of layout design and Noise measarement.In order to While meeting power equipment radiating requirements and space and criteria of noise control, the main transformer of underground and indoor substation is often using change Depressor body and the radiator split type of cooling arranged apart.Oily cycle forces water-cooling pattern (ODWF or ONWF) has higher Cooling effectiveness be usually used in the cooling of Large Copacity oil-immersed power transformer in underground substation.Using the split of the type of cooling Cooling system structure is complicated, generally comprises transformer, oil water heat exchange device, water cooling tower, water circulating pump, temperature detection, flow inspection The cooling devices such as survey and auxiliary operational outfit, the control logic of cooling device are also complex.
The content of the invention
It is an object of the invention to provide a kind of transformer to force hydrologic cycle cooling system and its control method, makes system safe Effec-tive Function and the radiating effect that cooling system can be ensured, and make oil surface temperature and winding temperature during transformer station high-voltage side bus equal The purpose changed in standard prescribed limits.
To reach above-mentioned purpose, the invention provides a kind of transformer to force hydrologic cycle cooling system, including:
The cooling device being connected with transformer, it is used for using the oil in cooling water cooling transformer oil pipe;
The water replanishing device being connected with cooling device, it is used for the supplement that cooling water is carried out to the cooling device, and,
The signal supervisory instrument being arranged on cooling device, water replanishing device and transformer, its be used to detecting cooling device and Water temperature in water replanishing device, and the oil temperature in transformer;
The cooling device includes a cooling tower and more oil water heat exchange devices being arranged in transformer;
Oil pipe connection in oil pipe and transformer in the oil water heat exchange device, water pipe in the oil water heat exchange device with it is cold But tower connects.
Above-mentioned transformer forces hydrologic cycle cooling system, wherein, the cooling tower includes:
The blower fan being arranged at the top of cooling tower;
The cooling coil being arranged in cooling tower, it is connected with the water pipe of oil water heat exchange device;
The spray equipment being arranged in cooling tower, it is used to cool down the cooling water in cooling coil;
It is arranged on the shower water collecting-tank of cooling tower bottom;
The shower water collecting-tank is connected with spray equipment by feeding spraying pump.
Above-mentioned transformer forces hydrologic cycle cooling system, wherein, the spray equipment includes being arranged on cooling coil One row's spray spout of side and the low pressure mist-generating nozzle being arranged on below cooling coil.
Above-mentioned transformer forces hydrologic cycle cooling system, wherein, it is provided with blowoff valve on the shower water collecting-tank.
Above-mentioned transformer forces hydrologic cycle cooling system, wherein, the water replanishing device includes:
Extra feed tank, and,
The voltage stabilization water filling device that arrival end is connected with extra feed tank, its port of export catchment with cooling coil and shower water respectively Pond connects.
Above-mentioned transformer forces hydrologic cycle cooling system, wherein, the signal supervisory instrument includes:
The cooling tower inflow temperature sensor being arranged on cooling coil inlet pipeline;
The cooling tower leaving water temperature sensors being arranged on cooling coil outlet pipeline;
Oil surface temperature indicating gage and winding temperature indicating gage on the transformer is set, and,
The shower water thermometer and the conductivity meter of detection spray water conductivity being arranged in shower water collecting-tank.
Present invention also offers the control method that a kind of above-mentioned transformer forces hydrologic cycle cooling system, following step is included Suddenly:Switching according to oil temperature change control in transformer to oil water heat exchange device, at the same it is cold according to the change control of the water temperature of cooling tower But the switching of tower inner blower and spray equipment;
It is described according to the water temperature of cooling tower change control cooling tower inner blower and spray equipment switching method include with Lower step:
Step 1:Detect cooling tower inflow temperature;If it is higher than preset temperature T1, then blower fan is started, and perform step 2;
Step 2:Detect cooling tower leaving water temperature;If it is less than preset temperature T2, then blower fan is closed, and perform step 1;If It is in preset temperature T2With preset temperature T3Between, then keep blower fan unlatching and linear regulation blower fan is transported between 25Hz~50Hz Line frequency;If it is higher than preset temperature T3, then feeding spraying pump is started, and perform step 3;
Step 3:Detect spray coolant-temperature gage and cooling tower leaving water temperature in collecting-tank;If spray coolant-temperature gage is higher than in collecting-tank Preset temperature T4, then it is on the rocks into shower water collecting-tank to spray coolant-temperature gage to reduce;If cooling tower leaving water temperature is less than default temperature Spend T5, then feeding spraying pump is closed, and perform step 2;
It is described that the operation/cutting method of oil water heat exchange device is comprised the steps of according to oil temperature change control in transformer:
When Transformer Winding temperature is higher than preset temperature B1Or oil surface temperature is higher than preset temperature B2When, increase a profit Heat exchanger is run.
Above-mentioned transformer forces the control method of hydrologic cycle cooling system, wherein, in step 3, close feeding spraying pump Afterwards, detection spray water conductivity is first carried out before step 2 is performed;If surveying spray water conductivity is higher than 500 μ S/cm, beat Drive the blowoff valve of shower water collecting-tank.
Above-mentioned transformer forces the control method of hydrologic cycle cooling system, wherein, the T1Around cooling tower + 15 DEG C of environment temperature, the T2Not higher than T1- 10 DEG C, the T3Not higher than+30 DEG C of cooling tower ambient temperature, the T4It is situated between Between 35-40 DEG C, the T5Not higher than+25 DEG C of cooling tower ambient temperature.
Relative to prior art, the invention has the advantages that:
(1) present invention is used as cooling and set by pasta heat indicator on transformer and winding temperature indicating gage institute temperature displaying function The foundation of standby switching, it can effectively reflect that temperature change avoids additional temperature measuring equipment again in transformer, reduces control system hardware Cost.
(2) the preset temperature T in control method of the present invention1、T2、T3、T4And T5Setting principle preferentially to be dissipated using blower fan Heat, shorten the operation burden of spray equipment, so as to reduce the water consumption of cooling tower and operating cost, improve cooling system efficiency.
(3) without largely be calculated in control method logic simplicity of the present invention, control process, therefore control response speed Hurry up, control system it is easy to operate, be suitably applied the operation of actual transformer station.
Brief description of the drawings
Fig. 1 is that transformer of the present invention forces hydrologic cycle cooling system location map;
Fig. 2 is cooling tower of the present invention and water replanishing device structural representation;
Fig. 3 is signal point position distribution schematic diagram of the present invention;
Fig. 4 is the flow chart that cooling column water temperature controls in control method of the present invention;
Fig. 5 is the particular flow sheet that cooling column water temperature controls in control method of the present invention.
Embodiment
Below in conjunction with accompanying drawing, by specific embodiment, the invention will be further described, and these embodiments are merely to illustrate The present invention, it is not limiting the scope of the invention.
As shown in Figure 1, Figure 2 and Figure 3, the invention provides a kind of transformer to force hydrologic cycle cooling system, including:
The cooling device being connected with transformer 31, it is used for using the oil in the oil pipe of cooling water cooling transformer 31;
The water replanishing device being connected with cooling device, it is used for the supplement that cooling water is carried out to the cooling device, and,
The signal supervisory instrument being arranged on cooling device, water replanishing device and transformer, its be used to detecting cooling device and Oil temperature in water temperature in water replanishing device, and transformer 31;
The cooling device includes a cooling tower 1 and more oil water heat exchange devices 2 being arranged in transformer 31;
Oil pipe in the oil water heat exchange device 2 is connected with the oil pipe in transformer 31, the water pipe in the oil water heat exchange device 2 It is connected with cooling tower 1.
The cooling tower 1 includes:
It is arranged on the blower fan 3 at the top of cooling tower 1;
The cooling coil 5 being arranged in cooling tower 1, it is connected with the water pipe of oil water heat exchange device 2;
The spray equipment being arranged in cooling tower 1, it is used to cool down the cooling water in cooling coil 5;
It is arranged on the shower water collecting-tank 6 of the bottom of cooling tower 1;
The shower water collecting-tank 6 is connected with spray equipment by feeding spraying pump 7;
Blowoff valve is provided with the shower water collecting-tank 6;
Cooling water circulation water pump 8 and cooling water flow regulation are provided between the oil water heat exchange device 2 and cooling coil 5 Valve.
The spray equipment includes being arranged on row's spray spout 4 above cooling coil and is arranged on below cooling coil Low pressure mist-generating nozzle 29.
The water replanishing device includes:
Extra feed tank 9;
The voltage stabilization water filling device 10 that arrival end is connected with extra feed tank 9, its port of export respectively with cooling coil 5 and shower water Collecting-tank 6 connects;
Cooling water replenishment valve 11 is provided between the voltage stabilization water filling device 10 and cooling coil 5;
Collecting-tank water compensating valve 12 is provided between the voltage stabilization water filling device 10 and shower water collecting-tank 6;
The arrival end of the extra feed tank 9 is also connected with extra feed tank circulating pump 13 by extra feed tank water compensating valve 14.
The signal monitoring device includes:
The extra feed tank liquid level sensor 15 being arranged on extra feed tank 9;
The supplementing water pressure sensor 16 being arranged on the export pipeline of voltage stabilization water filling device 10;
Cooling water water pillow liquid level sensor 17, the cooling tower inflow temperature being arranged on the inlet pipeline of cooling coil 5 sense Device 18, cooling tower flow of inlet water sensor 19 and cooling tower intake pressure sensor 20;
Cooling tower leaving water temperature sensors 21, the cooling tower water flow being arranged on the outlet pipeline of cooling coil 5 sense Device 22 and cooling tower discharge pressure sensor 23;
The oil surface temperature indicating gage and winding temperature indicating gage being arranged on transformer 31, and,
Collecting-tank liquid level gauge 24, shower water thermometer 25, the detection spray water conductivity being arranged in shower water collecting-tank 6 Conductivity meter 30.
The system also includes control device, and it includes:The fan control box 26 being connected with blower fan 3, it is used to control blower fan 3 Operation;The feeding spraying pump control cabinet 27 being connected with feeding spraying pump 7, it is used for the operation for controlling feeding spraying pump 7, and, with supply The extra feed tank circulating pump control cabinet 28 that water tank circulating pump 13 connects, it is used for the operation for controlling extra feed tank circulating pump 13.
The more oil water heat exchange devices 2 include N platforms operation oil water heat exchange device 2 and 2 standby oil water heat exchange devices 2, the change When the voltage class of depressor 31 is more than 220kV, N values are 2, when the voltage class of transformer 31 is less than or equal to 220kV, N values For 1.
As shown in figure 4, present invention also offers the control method that a kind of above-mentioned transformer 31 forces hydrologic cycle cooling system, Comprise the steps of:Switching according to oil temperature change control in transformer 31 to oil water heat exchange device 2, while according to cooling tower 1 The switching of the water temperature change control inner blower 3 of cooling tower 1 and spray equipment;
The method of the switching for changing the control inner blower 3 of cooling tower 2 and spray equipment according to the water temperature of cooling tower 1 includes Following steps:
Step 1:Detect cooling tower inflow temperature;If it is higher than preset temperature T1, then blower fan 3 is started, and perform step 2;
Step 2:Detect cooling tower leaving water temperature;If it is less than preset temperature T2, then blower fan 3 is closed, and perform step 1; If it is in preset temperature T2With preset temperature T3Between, then keep blower fan 3 to open and the linear regulation blower fan between 25Hz~50Hz 3 running frequencies;If it is higher than preset temperature T3, then feeding spraying pump is started, and perform step 3;
Step 3:Detect spray coolant-temperature gage and cooling tower leaving water temperature in collecting-tank;If spray coolant-temperature gage is higher than in collecting-tank Preset temperature T4, then it is on the rocks into shower water collecting-tank 6 to spray coolant-temperature gage to reduce;If cooling tower leaving water temperature is less than default temperature Spend T5, then feeding spraying pump 7 is closed, and perform step 2;
It is described that the operation/cutting method of oil water heat exchange device 2 is comprised the steps of according to oil temperature change control in transformer 31:
When the winding temperature of transformer 31 is higher than preset temperature B1Or oil surface temperature is higher than preset temperature B2When, increase an oil Water- to-water heat exchanger 2 is run.Preferably, when the winding temperature of transformer 31 is higher than 80 DEG C or oil surface temperature is higher than 55 DEG C, one is increased Oil water heat exchange device 2 is run.
In step 3, after closing feeding spraying pump 7, detection spray water conductivity is first carried out before step 2 is performed;If institute Survey spray water conductivity and be higher than 500 μ S/cm, then open the blowoff valve of shower water collecting-tank 6.
The T1Not higher than+15 DEG C of 1 ambient temperature of cooling tower, the T2Not higher than T1- 10 DEG C, the T3It is not higher than + 30 DEG C of 1 ambient temperature of cooling tower, the T4Between 35-40 DEG C, the T5Not higher than the ambient temperature of cooling tower 1 +25℃。
Hydrologic cycle cooling system and its controlling party are forced with the transformer 31 provisioned in certain 550kV main transformer of transformer substation 31 Exemplified by method, every main transformer 31 is equipped with 4 oil water heat exchange devices 2, keeps 2 operation oil water heat exchange devices 2 to put into during normal operation Operation, 1 standby oil water heat exchange device 2 is put into when winding temperature is higher than 80 DEG C or oil surface temperature is higher than 55 DEG C;When operation profit 1 standby oil water heat exchange device 2 is put into during 2 failure of heat exchanger.
As shown in figure 5, before cooling tower 1 puts into operation, start voltage stabilizing moisturizing and detect supplementing water pressure P0 whether P0≤set Definite value, if so, then sending the low alarm of supplementing water pressure;If it is not, then detect water supply tank liquid level;When water supply tank liquid level is not higher than minimum liquid During position, open extra feed tank water compensating valve 14 and carry out moisturizing, when reaching minimum liquid level, close extra feed tank water compensating valve 14.Moisturizing Water cooling tower 1 enters running status after pressure and water supply tank liquid level meet condition.
The preset temperature T of method for controlling cooling system1、T2、T3、T4And T5It is respectively set as 36 DEG C, 26 DEG C, 50 DEG C, 38 DEG C With 45 DEG C.
When the inflow temperature of cooling tower 1 is higher than 36 DEG C, starts blower fan 3 in cooling tower 1, detect the exit water temperature of cooling tower 1.When The leaving water temperature of cooling tower 1 closes blower fan 3 when being less than 26 DEG C;When the leaving water temperature of cooling tower 1 is between 26 DEG C and 50 DEG C, in 25Hz The frequency of linear regulation blower fan 3 between~50Hz.When the leaving water temperature of cooling tower 1 rises to over 50 DEG C, start cooling tower 1 and spray Device, to strengthen radiating effect.Whether the water level for detecting shower water collecting-tank 6 first is in high level state, in this way, then directly Open feeding spraying pump 7;If not, feeding spraying pump 7 is opened after moisturizing to high fluid level condition.Continue to monitor the liquid of shower water collecting-tank 6 Position state, shower water water temperature and cooling water water pillow liquid level and the leaving water temperature of cooling tower 1, when the liquid level of shower water collecting-tank 6 is down to Spray pump is closed during low liquid level state, feeding spraying pump 7 is reopened after opening moisturizing to the high fluid level condition of collecting-tank water compensating valve 12; It is on the rocks to reduce shower water water temperature into shower water collecting-tank 6 when water temperature is higher than 38 DEG C;When cooling water water pillow liquid level is less than most Cooling water replenishment valve 11 is opened during low liquid level;Feeding spraying pump 7 is closed when the leaving water temperature of water cooling tower 1 is less than 45 DEG C, and is detected The electrical conductivity of shower water in shower water collecting-tank 6.When electrical conductivity is higher than 500 μ S/cm, collecting-tank blowoff valve, blowoff valve are opened Time-delay closing, delay time are adjustable.Return to the detection leaving water temperature of water cooling tower 1, circular flow.
When being adjusted to maximum air quantity and shower water work in the converter plant of 1 blower fan of cooling tower 3 run, cooling tower 1 inflow temperature it is still high (>It is 65 DEG C, adjustable) or the leaving water temperature of cooling tower 1 still raise (>It is 55 DEG C, adjustable), then aid in controlling by transformer station System processed sends the signal (be delayed 300s, adjustable) that increase cooling tower 1 runs number of units, opens the off-duty cooling tower in the system 1;When the inflow temperature of cooling tower 1 reduce (<It is 52 DEG C, adjustable) or the reduction of the leaving water temperature of cooling tower 1 (<It is 42 DEG C, adjustable), then by power transformation Supplementary controlled system of standing sends the signal for reducing the number of units of cooling tower 1, closes unnecessary water cooling tower 1 (be delayed 300s, adjustable).When One cooling tower 1 breaks down (blower fan 3, valve, baffle plate), closes the flowing water Valve of cooling tower 1, the water cooling tower 1 of stopping transport, and Open standby water cooling tower 1.
In cooling system running, when there are following abnormal conditions in monitoring signals, cooling system host computer display report Alert signal:
Fault of water pump everywhere in cooling system;Cooling water circulation water pump 8 exports main-piping pressure and is less than setting value;Cooling tower 1 Water-in and water-out valve, blower fan 3, the blowoff valve failure of shower water collecting-tank 6;The water level of shower water collecting-tank 6 is too high or too low;Shower water It is too low that main-piping pressure is exported when pump 7 is run;Cooling tower 1 is intake and leaving water temperature is higher than setting value (setting value is adjustable);Cooling tower 1 Flow of inlet water is too low;Spray water conductivity in shower water collecting-tank 6 is too high etc..
In summary, the present invention is used as by pasta heat indicator on transformer and winding temperature indicating gage institute temperature displaying function The foundation of cooling device switching, it can effectively reflect that temperature change avoids additional temperature measuring equipment again in transformer, reduces control system System hardware cost.Preset temperature T in control method of the present invention1、T2、T3、T4And T5Setting principle preferentially to be dissipated using blower fan Heat, shorten the operation burden of spray equipment, so as to reduce the water consumption of cooling tower and operating cost, improve cooling system efficiency. Control method logic of the present invention is concise, need not largely be calculated in control process, therefore control response speed is fast, control system It is easy to operate, it is suitably applied the operation of actual transformer station.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.

Claims (9)

1. a kind of transformer forces hydrologic cycle cooling system, it is characterised in that including:
The cooling device being connected with transformer, it is used for using the oil in cooling water cooling transformer oil pipe;
The water replanishing device being connected with cooling device, it is used for the supplement that cooling water is carried out to the cooling device, and,
The signal supervisory instrument being arranged on cooling device, water replanishing device and transformer, it is used to detect cooling device and moisturizing Water temperature in device, and the oil temperature in transformer;
The cooling device includes a cooling tower and more oil water heat exchange devices being arranged in transformer;
Oil pipe in oil pipe and transformer in the oil water heat exchange device connects, water pipe and cooling tower in the oil water heat exchange device Connection.
2. transformer as claimed in claim 1 forces hydrologic cycle cooling system, it is characterised in that the cooling tower includes:
The blower fan being arranged at the top of cooling tower;
The cooling coil being arranged in cooling tower, it is connected with the water pipe of oil water heat exchange device;
The spray equipment being arranged in cooling tower, it is used to cool down the cooling water in cooling coil;
It is arranged on the shower water collecting-tank of cooling tower bottom;
The shower water collecting-tank is connected with spray equipment by feeding spraying pump.
3. transformer as claimed in claim 2 forces hydrologic cycle cooling system, it is characterised in that the spray equipment includes setting Put row's spray spout above cooling coil and the low pressure mist-generating nozzle being arranged on below cooling coil.
4. transformer as claimed in claim 2 forces hydrologic cycle cooling system, it is characterised in that on the shower water collecting-tank It is provided with blowoff valve.
5. transformer as claimed in claim 2 forces hydrologic cycle cooling system, it is characterised in that the water replanishing device includes:
Extra feed tank, and,
The voltage stabilization water filling device that arrival end is connected with extra feed tank, its port of export connect with cooling coil and shower water collecting-tank respectively Connect.
6. transformer as claimed in claim 2 forces hydrologic cycle cooling system, it is characterised in that the signal supervisory instrument bag Include:
The cooling tower inflow temperature sensor being arranged on cooling coil inlet pipeline;
The cooling tower leaving water temperature sensors being arranged on cooling coil outlet pipeline;
Oil surface temperature indicating gage and winding temperature indicating gage on the transformer is set, and,
The shower water thermometer and the conductivity meter of detection spray water conductivity being arranged in shower water collecting-tank.
7. the transformer in a kind of 1-6 such as claim as described in any one forces the control method of hydrologic cycle cooling system, its It is characterised by, comprises the steps of:Switching according to oil temperature change control in transformer to oil water heat exchange device, while according to cooling The water temperature change control cooling tower inner blower of tower and the switching of spray equipment;
The method of the switching for changing control cooling tower inner blower and spray equipment according to the water temperature of cooling tower includes following step Suddenly:
Step 1:Detect cooling tower inflow temperature;If it is higher than preset temperature T1, then blower fan is started, and perform step 2;
Step 2:Detect cooling tower leaving water temperature;If it is less than preset temperature T2, then blower fan is closed, and perform step 1;If its Preset temperature T2With preset temperature T3Between, then keep blower fan unlatching and the linear regulation fan operation frequency between 25Hz~50Hz Rate;If it is higher than preset temperature T3, then feeding spraying pump is started, and perform step 3;
Step 3:Detect spray coolant-temperature gage and cooling tower leaving water temperature in collecting-tank;If spray coolant-temperature gage is higher than default in collecting-tank Temperature T4, then it is on the rocks into shower water collecting-tank to spray coolant-temperature gage to reduce;If cooling tower leaving water temperature is less than preset temperature T5, Feeding spraying pump is then closed, and performs step 2;
It is described that the operation/cutting method of oil water heat exchange device is comprised the steps of according to oil temperature change control in transformer:
When Transformer Winding temperature is higher than preset temperature B1Or oil surface temperature is higher than preset temperature B2When, increase an oil water heat exchange Device is run.
8. transformer as claimed in claim 7 forces the control method of hydrologic cycle cooling system, it is characterised in that in step 3 In, after closing feeding spraying pump, detection spray water conductivity is first carried out before step 2 is performed;If it is high to survey spray water conductivity In 500 μ S/cm, then opening shower water collecting-tank blowoff valve.
9. transformer as claimed in claim 7 forces the control method of hydrologic cycle cooling system, it is characterised in that the T1No Higher than+15 DEG C of cooling tower ambient temperature, the T2Not higher than T1- 10 DEG C, the T3Not higher than cooling tower ambient temperature + 30 DEG C, the T4Between 35-40 DEG C, the T5Not higher than+25 DEG C of cooling tower ambient temperature.
CN201710631029.3A 2017-07-28 2017-07-28 A kind of transformer forces hydrologic cycle cooling system and its control method Pending CN107424747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710631029.3A CN107424747A (en) 2017-07-28 2017-07-28 A kind of transformer forces hydrologic cycle cooling system and its control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710631029.3A CN107424747A (en) 2017-07-28 2017-07-28 A kind of transformer forces hydrologic cycle cooling system and its control method

Publications (1)

Publication Number Publication Date
CN107424747A true CN107424747A (en) 2017-12-01

Family

ID=60430670

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710631029.3A Pending CN107424747A (en) 2017-07-28 2017-07-28 A kind of transformer forces hydrologic cycle cooling system and its control method

Country Status (1)

Country Link
CN (1) CN107424747A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107817843A (en) * 2017-11-27 2018-03-20 国网内蒙古东部电力有限公司 The control method and control system of the cooling system of forced oil-circulation air-cooled transformer
CN108106453A (en) * 2018-01-30 2018-06-01 荆州市宏达生物科技股份有限公司 A kind of aerating and cooling tower control device
CN109213012A (en) * 2018-09-11 2019-01-15 广东瑞智电力科技有限公司 A kind of offshore wind farm boosting dry-type transformer control system
CN110035638A (en) * 2019-04-25 2019-07-19 广东海悟科技有限公司 Reducing energy consumption module, improved computer-room air conditioning system and control method
CN110957109A (en) * 2019-11-25 2020-04-03 国网四川省电力公司广安供电公司 Oil-immersed self-cooling transformer cooling system
CN113380501A (en) * 2021-06-03 2021-09-10 国网江苏省电力有限公司南通供电分公司 Transformer temperature control system and control method thereof
CN113606839A (en) * 2021-07-19 2021-11-05 宁波沃弗圣龙环境技术有限公司 Low-temperature granary of single-cooling water-cooling air conditioning unit and control method
CN118394016A (en) * 2024-06-25 2024-07-26 深圳市兄弟制冰系统有限公司 Intelligent monitoring system and method for cabin-mounted refrigeration replenishing device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07283034A (en) * 1994-04-01 1995-10-27 Tokyo Electric Power Co Inc:The Cooler and cooling method for transformer
CN203179660U (en) * 2013-03-29 2013-09-04 国家电网公司 Circulation cooling system for transformer and reactor
CN203240923U (en) * 2013-03-30 2013-10-16 国家电网公司 Air-cooling spray evaporation cooling tower
CN103779059A (en) * 2013-12-17 2014-05-07 国网上海市电力公司 Dynamic capacity increasing method for oil-immersed transformer
CN105953602A (en) * 2016-04-25 2016-09-21 珠海格力电器股份有限公司 Energy-saving control method and device for cooling tower and air conditioning system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07283034A (en) * 1994-04-01 1995-10-27 Tokyo Electric Power Co Inc:The Cooler and cooling method for transformer
CN203179660U (en) * 2013-03-29 2013-09-04 国家电网公司 Circulation cooling system for transformer and reactor
CN203240923U (en) * 2013-03-30 2013-10-16 国家电网公司 Air-cooling spray evaporation cooling tower
CN103779059A (en) * 2013-12-17 2014-05-07 国网上海市电力公司 Dynamic capacity increasing method for oil-immersed transformer
CN105953602A (en) * 2016-04-25 2016-09-21 珠海格力电器股份有限公司 Energy-saving control method and device for cooling tower and air conditioning system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107817843A (en) * 2017-11-27 2018-03-20 国网内蒙古东部电力有限公司 The control method and control system of the cooling system of forced oil-circulation air-cooled transformer
CN108106453A (en) * 2018-01-30 2018-06-01 荆州市宏达生物科技股份有限公司 A kind of aerating and cooling tower control device
CN108106453B (en) * 2018-01-30 2023-11-17 荆州市宏达生物科技股份有限公司 Ventilation cooling tower controlling means
CN109213012A (en) * 2018-09-11 2019-01-15 广东瑞智电力科技有限公司 A kind of offshore wind farm boosting dry-type transformer control system
CN109213012B (en) * 2018-09-11 2021-02-09 广东明阳电气股份有限公司 Offshore wind power boost dry-type transformer control system
CN110035638A (en) * 2019-04-25 2019-07-19 广东海悟科技有限公司 Reducing energy consumption module, improved computer-room air conditioning system and control method
CN110957109A (en) * 2019-11-25 2020-04-03 国网四川省电力公司广安供电公司 Oil-immersed self-cooling transformer cooling system
CN113380501A (en) * 2021-06-03 2021-09-10 国网江苏省电力有限公司南通供电分公司 Transformer temperature control system and control method thereof
CN113380501B (en) * 2021-06-03 2022-08-19 国网江苏省电力有限公司南通供电分公司 Transformer temperature control system and control method thereof
CN113606839A (en) * 2021-07-19 2021-11-05 宁波沃弗圣龙环境技术有限公司 Low-temperature granary of single-cooling water-cooling air conditioning unit and control method
CN118394016A (en) * 2024-06-25 2024-07-26 深圳市兄弟制冰系统有限公司 Intelligent monitoring system and method for cabin-mounted refrigeration replenishing device

Similar Documents

Publication Publication Date Title
CN107424747A (en) A kind of transformer forces hydrologic cycle cooling system and its control method
CN205542977U (en) Battery box application has heat dissipation concurrently and puts out a fire pipeline structure of function
CN203642581U (en) Cooling water circulation system
CN108549313A (en) The control method of static reactive water-cooling circulating system
CN109443075B (en) Thermal performance evaluation method and monitoring system for closed cooling tower
CN109555712A (en) A kind of nuclear power station main pump integrated verification experimental rig
CN206274708U (en) Wind power generating set CRS Coolant Recovery System
CN103712395A (en) Closed-type water cooling system and cooling method thereof
CN106793698A (en) Closed cooling system of wind generating set
CN206490546U (en) Wind power generating set cooling system and wind power generating set
CN205980107U (en) A CO2 refrigerating system for high heat density data center
CN108760786A (en) Cooling recirculation system
CN204879451U (en) Modularization gas pressure regulating box
CN207166953U (en) A kind of water-cooling system applied to automobile charging pile
CN207379010U (en) Intelligent temperature control system
CN207282068U (en) A kind of apparatus for demonstrating of pressurized-water reactor nuclear power plant passive residual heat removal system
CN105934142B (en) A kind of electric appliance box heat abstractor
CN101928574A (en) Installing method of dry quenching apparatus
CN206149699U (en) Large -scale power transmitter heat abstractor
CN205283375U (en) Cooling device of power module
CN210717771U (en) Heating system
CN209731868U (en) A kind of high-power extra-high voltage liquid cooling apparatus
CN107919215A (en) A kind of oil-immersed transformer
CN105259950B (en) Temperature control system and implementation method for PE can packing machine high-frequency heating closing devices
CN210485884U (en) Integral heat exchange module unit

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20171201

RJ01 Rejection of invention patent application after publication