CN104390403A - Outside-valve air-cooling system auxiliary spraying device of converter transformer substation - Google Patents
Outside-valve air-cooling system auxiliary spraying device of converter transformer substation Download PDFInfo
- Publication number
- CN104390403A CN104390403A CN201410673896.XA CN201410673896A CN104390403A CN 104390403 A CN104390403 A CN 104390403A CN 201410673896 A CN201410673896 A CN 201410673896A CN 104390403 A CN104390403 A CN 104390403A
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- Prior art keywords
- valve
- cooling system
- centrifugal pump
- vertical centrifugal
- water
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D1/00—Devices using naturally cold air or cold water
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention relates to an outside-valve air-cooling system auxiliary spraying device of a converter transformer substation. The outside-valve air-cooling system auxiliary spraying device is characterized by comprising a water source, wherein the water source is connected with an inlet of a vertical centrifugal pump (1) through a precise filter (2), an outlet of the vertical centrifugal pump (1) is communicated with a spraying water pipe, the spraying water pipe is commucnited with at least one spray head (4), and the spray head (4) is arranged above an air cooler finned tube in the outside-valve air-cooling system auxiliary spraying device of the converter transformer substation. For preventing trip caused by ultra-high cooling water inlet valve temperature of a valve cooling system, the operating reliability of the device is improved. The outside-valve air-cooling system auxiliary spraying device of the converter transformer substation can effectively reduce the inlet valve temperature of a converter valve.
Description
Technical field
The present invention relates to a kind of converting plant valve external air cooling system system supplymentary spray equipment.
Background technology
In recent years, be applicable to remote, jumbo DC transmission engineering be developed rapidly in China.Compared with ac transmission engineering, DC transmission engineering advantage is self-evident, but also there are some drawbacks, and the cost as DC transmission engineering is high, complex structure, loss are large etc., wherein very the important point is exactly that DC transmission system reliability is poor, is unfavorable for power grid security.Valve cooling system is as current conversion station core auxiliary equipment, and its safe and stable operation directly affects the reliability of DC transmission system.Valve cooling system is divided into valve inner cold system and valve external condensation system.At present, state's internal valve external condensation system is adopted and is realized in two ways, and one is outer water-cooling system, primarily of cooling tower and accessory system composition thereof; Two is adopt external air cooling system system, forms primarily of aerial cooler, electric heater, pipeline and valve.Wherein external air cooling system system is affected by environment comparatively large, is applicable to the area of drought and water shortage; And outer water-cooling system is affected by environment little, be applicable to the area had abundant water resources, but operation maintenance amount is large compared with external air cooling system.
Certain model external air cooling system system that such as the Northwest's current conversion station adopts, every pole configures 24 Fans to cool the valve inner cold water of outflow, and then takes away the heat produced in converter valve running.Create following problem in actual moving process: noon in summer, outdoor temperature reached about 40 DEG C, 24 Fans of every pole all run with 50Hz maximum (top) speed, and now cooling water enters valve temperature and reaches 44 DEG C, close to entering valve temperature height alarming value 48 DEG C.This is because external air cooling system system is affected by environment comparatively large, if environment temperature is high, then the heat exchanger effectiveness of air cooler is deteriorated, therefore in the urgent need to considering that Design assistant spray equipment enters valve temperature to reduce cooling water.
Summary of the invention
The object of this invention is to provide a kind of converting plant valve external air cooling system system supplymentary spray equipment, can by the spray of air cooler fin tube-surface to provide cooling capacity for subsequent use, thus the cooling capacity not foot phenomenon caused under effective compensation extreme high temperature in summer weather and cooling device failure condition.
A kind of converting plant valve external air cooling system system supplymentary spray equipment, its special feature is: comprise water source, this water source is by the inlet communication of accurate filter and a vertical centrifugal pump, this vertical centrifugal delivery side of pump is communicated with spray header by water softener, this spray header is communicated with at least one shower nozzle, and this shower nozzle to be located in the valve external air cooling system system of converting plant above aerial cooler finned tube.
Wherein also comprise temperature control equipment, the cooling water that the temperature sensor of this temperature control equipment is arranged on converter valve enters valve place, and the control output end of this temperature control equipment is also connected with the control end of vertical centrifugal pump.
Wherein also be parallel with a vertical centrifugal pump for subsequent use vertical centrifugal pump is other.
For preventing valve cooling system cooling water from entering the tripping operation of valve thermo-field thoery, increasing equipment operational reliability, the invention provides a kind of valve external air cooling system system supplymentary spray equipment, effectively can reduce converter valve and enter valve temperature.Its advantage is: 1) start when summer temperature height, can reduce converter valve and enter valve temperature, add operational reliability; 2) air-cooler fault outside, plays auxiliary temperature-reducing function when cooling capacity is inadequate in support; 3) the spray pump the using and the reserved of auxiliary spraying device, facilitate operation maintenance; 4) adopt the water after resin cation purification to spray, prevent outer cold framework scaling from affecting radiating effect.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Detailed description of the invention
As shown in Figure 1, the invention provides a kind of converting plant valve external air cooling system system supplymentary spray equipment, comprise water source, this water source passes through the inlet communication of accurate filter 2 and a vertical centrifugal pump 1, the outlet of this vertical centrifugal pump 1 is communicated with spray header by water softener 3 (ion-exchanger), this spray header is communicated with at least one shower nozzle 4, and this shower nozzle 4 to be located in the valve external air cooling system system of converting plant above aerial cooler finned tube.
Wherein also comprise temperature control equipment, the cooling water that the temperature sensor of this temperature control equipment is arranged on converter valve enters valve place, and the control output end of this temperature control equipment is also connected with the control end of vertical centrifugal pump 1.Also be parallel with a vertical centrifugal pump 1 for subsequent use vertical centrifugal pump 1 is other in addition.
For the practical application of apparatus of the present invention at east, Yinchuan current conversion station, spray equipment of the present invention has following several respects advantage:
1, reliability is high:
East, Yinchuan current conversion station is located in northwest, and day and night temperature is large, and about when afternoon 14, temperature reaches the highest.Through observing, environment temperature is up to 42 DEG C, and cooling water enters valve temperature 44 DEG C, and close to entering valve temperature height alarming value 48 DEG C, now all blower fans all run with maximum (top) speed.After increasing auxiliary spraying device, reach 42 DEG C of spray pumps (vertical centrifugal pump 1) startup when entering valve temperature, 38 DEG C of spray pumps stop, effectiveness comparison is obvious, about 3 minutes temperature can decline 2-3 DEG C, therefore Be very effective, add straight-flow system operational reliability.
2, utilization rate is high:
Yinchuan east current conversion station summer high temperature weather duration is longer, long-term Operation at full power, therefore average spray pump startup every day 2-3 time, and utilization ratio is high compared with other DC converter stations.
3, there is automatic control function:
Utilize the temperature controller in the outer cold switch board of valve or PLC can realize automatic remote and control spray pump start and stop, make it reach 42 DEG C and automatically start entering valve temperature, temperature is down to 38 DEG C of time delays and is automatically stopped for 2 minutes.Spray pump starts employing rotation Starting mode, adds the reliability of every platform spray pump.
Using method of the present invention and operation principle are:
Living Water in station is taken from shower water water source, and water intaking position is positioned on the Living Water pipeline outside integrated water pump house.First running water is the accurate filter 2 of 200 μm through a filtering accuracy, removes precipitation, suspension etc. in water, to reduce the turbidity of water.Running water after filtration is by after two vertical centrifugal pumps 1 (a preparation and a use) supercharging, enter water softener 3 (ion-exchanger), being filled with ion exchange resin in water softener 3, for removing the calcium ions and magnesium ions in water, preventing shower water at finned tube surface scale.After running water softening, enter spray header, be sprayed onto air cooler fin tube-surface equably finally by shower nozzle 4.
Claims (3)
1. a converting plant valve external air cooling system system supplymentary spray equipment, it is characterized in that: comprise water source, this water source is by the inlet communication of accurate filter (2) with a vertical centrifugal pump (1), the outlet of this vertical centrifugal pump (1) is communicated with spray header by water softener (3), this spray header is communicated with at least one shower nozzle (4), and this shower nozzle (4) to be located in the valve external air cooling system system of converting plant above aerial cooler finned tube.
2. valve external air cooling system system supplymentary spray equipment in converting plant as claimed in claim 1, it is characterized in that: wherein also comprise temperature control equipment, the cooling water that the temperature sensor of this temperature control equipment is arranged on converter valve enters valve place, and the control output end of this temperature control equipment is also connected with the control end of vertical centrifugal pump (1).
3. converting plant valve external air cooling system system supplymentary spray equipment as claimed in claim 1 or 2, is characterized in that: be wherein also parallel with a vertical centrifugal pump (1) for subsequent use vertical centrifugal pump (1) is other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673896.XA CN104390403A (en) | 2014-11-21 | 2014-11-21 | Outside-valve air-cooling system auxiliary spraying device of converter transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673896.XA CN104390403A (en) | 2014-11-21 | 2014-11-21 | Outside-valve air-cooling system auxiliary spraying device of converter transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104390403A true CN104390403A (en) | 2015-03-04 |
Family
ID=52608340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410673896.XA Pending CN104390403A (en) | 2014-11-21 | 2014-11-21 | Outside-valve air-cooling system auxiliary spraying device of converter transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104390403A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109213221A (en) * | 2017-06-29 | 2019-01-15 | 许昌许继晶锐科技有限公司 | A kind of temprature control method of the outer cooling system of direct-current transmission converter valve combined type |
| CN110880905A (en) * | 2019-11-18 | 2020-03-13 | 中国南方电网有限责任公司超高压输电公司广州局 | Motor thermosensitive control system of high-voltage direct-current valve cooling system |
| CN111447801A (en) * | 2020-05-07 | 2020-07-24 | 南京佳力图机房环境技术股份有限公司 | Spraying system of container type indirect evaporation cooling air conditioning unit |
Citations (4)
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|---|---|---|---|---|
| CN102435033A (en) * | 2011-12-01 | 2012-05-02 | 国家电网公司 | Closed type circulation water cooling device and method thereof |
| CN202350409U (en) * | 2011-11-23 | 2012-07-25 | 许继集团有限公司 | Tandem type mixed cooling system |
| CN203421872U (en) * | 2013-08-14 | 2014-02-05 | 张健 | DC converter station external cooling system |
| CN204345985U (en) * | 2014-11-21 | 2015-05-20 | 国家电网公司 | Converting plant valve external air cooling system system supplymentary spray equipment |
-
2014
- 2014-11-21 CN CN201410673896.XA patent/CN104390403A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202350409U (en) * | 2011-11-23 | 2012-07-25 | 许继集团有限公司 | Tandem type mixed cooling system |
| CN102435033A (en) * | 2011-12-01 | 2012-05-02 | 国家电网公司 | Closed type circulation water cooling device and method thereof |
| CN203421872U (en) * | 2013-08-14 | 2014-02-05 | 张健 | DC converter station external cooling system |
| CN204345985U (en) * | 2014-11-21 | 2015-05-20 | 国家电网公司 | Converting plant valve external air cooling system system supplymentary spray equipment |
Non-Patent Citations (1)
| Title |
|---|
| 张斌、韦鹏: "《银川东换流站辅助喷淋系统的设计及应用》", 《宁夏电力》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109213221A (en) * | 2017-06-29 | 2019-01-15 | 许昌许继晶锐科技有限公司 | A kind of temprature control method of the outer cooling system of direct-current transmission converter valve combined type |
| CN109213221B (en) * | 2017-06-29 | 2022-04-01 | 河南晶锐冷却技术股份有限公司 | Temperature control method of direct-current power transmission converter valve combined type external cooling system |
| CN110880905A (en) * | 2019-11-18 | 2020-03-13 | 中国南方电网有限责任公司超高压输电公司广州局 | Motor thermosensitive control system of high-voltage direct-current valve cooling system |
| CN111447801A (en) * | 2020-05-07 | 2020-07-24 | 南京佳力图机房环境技术股份有限公司 | Spraying system of container type indirect evaporation cooling air conditioning unit |
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Application publication date: 20150304 |
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