CN205265542U - Change of current valve separately cooling is system but - Google Patents
Change of current valve separately cooling is system but Download PDFInfo
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- CN205265542U CN205265542U CN201521141438.8U CN201521141438U CN205265542U CN 205265542 U CN205265542 U CN 205265542U CN 201521141438 U CN201521141438 U CN 201521141438U CN 205265542 U CN205265542 U CN 205265542U
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Abstract
The utility model discloses a change of current valve separately cooling is system but, including air cooler, water -cooling tower, first solenoid valve, second solenoid valve and third solenoid valve, air cooler and water -cooling tower pass through the pipeline establish ties the back connect change of current valve both ends as but return circuit of change of current valve separately cooling, separately cooling but still is provided with the second branch road parallelly connected with the water -cooling tower in the return circuit, the second solenoid valve is installed on a second way, first solenoid valve and third solenoid valve install at the play water end (W. E. ) of water -cooling tower respectively and intake hold the pipeline on, according to ambient temperature and change of current valve cooling load (change of current capacity) through the solenoid valve adjustment air cooler and the water -cooling tower method of operation, be applicable to the cooling method of the air cooler series connection closed water -cooling tower of " arid water -deficient, summer vehemently, winter severe cold " regional current conversion station engineering, the water consumption is little, the puzzlement at water source in the time of effectively solving the current conversion station site selection, the method of operation is nimble, can effectively satisfy change of current valve cooling load requirement during extreme high temperature in summer, freeze protection measures was simple winter.
Description
[technical field]
The utility model relates to converter valve cooling technology, relates in particular to the outer cooling system of a kind of converter valve.
[background technology]
Converter valve is the nucleus equipment that current conversion station is realized the conversion of alternating current-direct current electric energy, and the IGCT in converter valve is in operationThe heat of changing because of power attenuation in process can cause the temperature rise of thyristor chip, once exceed IGCTMaximum junction temperature, IGCT will be damaged, so converter valve need to be used cooling medium circulation heat absorption.
Converter valve cooling system is divided into interior cold and outer cold two parts.
Inner cold system cooling medium conventionally adopts deionized water or adds the ionized water of ethylene glycol, changes operatingThe heat absorption that stream valve gives out, to maintain the normal working temperature of converter valve. Inner cold system adopts closed cycle,Reduce and contact with atmosphere, avoid various impurity to enter inner cold water system, before converter valve puts into operation for the first time, just mustMust inject pure water to the interior cooling circuit of valve, cooling water pipe couples together the radiator of all elements in valve. ?The cooling water of low temperature enters cooling water pipe and flows into whole radiators in valve after water circulating pump pressurization, absorbs brilliant lockThe heat that tube elements and auxiliary element thereof produce, water temperature will raise.
The valve inner cold water that has carried out heat exchange with converter valve thyristor and heat up, must be cooling (through secondaryCold outward) reduce and enter again converter valve after water temperature and carry out cooling. Converter valve is to provide the requirement of the outer cooling system of valveCooling capacity reliably, is controlled at inner cold water temperature and can ensures in the scope of the normal operation of valve group.
At present, the outer type of cooling of converter valve has water-cooling pattern and two kinds of modes of air cooling.
Water-cooling pattern good cooling results, but have following shortcoming: 1) higher to the reliability requirement at water source; 2) consumptionThe water yield is large; 3) higher to water quality requirement; 4) when environment temperature is lower, outer cool equipment need be taked antifreeze arranging reliablyExecute.
Air cooling mode, but have following shortcoming: 1) meteorological condition harsh (generally outside air temperature with enter converter valveWater temperature difference reach more than 6 DEG C guarantee cooling effect); 2) occupation area of equipment is large; 3) running noises is large.
[utility model content]
The utility model object is to provide a kind of converter valve outer cooling system, can not only overcome shortage of water resourcesDeficiency, and it is large effectively to solve summer capacity, the problem of preventing freeze in winter.
Adopt following scheme for achieving the above object:
The outer cooling system of a kind of converter valve, comprise air cooler, water-cooling tower, the first magnetic valve, the second magnetic valve andThe 3rd magnetic valve; Described air cooler and water-cooling tower are connected to converter valve two ends as converter valve after connecting by pipelineOuter cooling circuit, is also provided with second branch road in parallel with water-cooling tower in outer cooling circuit, the second magnetic valve is installedOn the second branch road, the first magnetic valve and the 3rd magnetic valve are arranged on respectively water side and the water inlet end pipe of water-cooling towerLu Shang.
Further, described water-cooling tower adopts closed cooling tower.
Further, described outer cooling circuit hollow cooler and water-cooling tower set gradually along water (flow) direction.
Further, described the second branch road is connected between the water side of air cooler and the water inlet end of converter valve.
The outer cooling system of the utility model converter valve, is connected to and changes after air cooler and water-cooling tower are connected by pipelineStream valve two ends are as the outer cooling circuit of converter valve, according to environment temperature and converter valve cooling load (change of current capacity)Adjust air cooler and the water-cooling tower method of operation by magnetic valve, be applicable to that " drought and water shortage, summer are extremely hot, winterSevere cold " type of cooling of air cooler series connection enclosed water-cooling tower of regional converter station project, water consumption is little, can be effectiveThe puzzlement at water source while solving current conversion station addressing; The method of operation is flexible, the change of current can effectively meet extreme high temperature in summer timeThe requirement of valve cooling load; Preventing freeze in winter measure is simple.
[brief description of the drawings]
Fig. 1 is the workflow diagram of the utility model system
In figure: 1. converter valve, 2. air cooler, 3. water-cooling tower, 4. the first magnetic valve, 5. the second magnetic valve, 6.Three magnetic valves
[detailed description of the invention]
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the outer cooling system of a kind of converter valve comprise air cooler 2, water-cooling tower 3, the first magnetic valve 4,The second magnetic valve 5 and the 3rd magnetic valve 6; Described air cooler 2 and water-cooling tower 3 are connected to after connecting by pipelineConverter valve 1 two ends, as the outer cooling circuit of converter valve 1, are also provided with in parallel with water-cooling tower 3 in outer cooling circuitThe second branch road, the second magnetic valve 5 is arranged on the second branch road, 6 points of the first magnetic valve 4 and the 3rd magnetic valvesBe not arranged on the water side and water inlet end pipeline of water-cooling tower 3. Water-cooling tower 3 adopts closed cooling tower.
Air cooler 2 and water-cooling tower 3 are connected in outer cold cooling circuit, cooling according to environment temperature and converter valveLoad (change of current capacity) is adjusted air cooler and water-cooling tower; Lower or the converter valve of winter environment temperature load hour,Only air cooler is put into operation, now cooling tower is without putting into operation; Summer environment temperature is lower or converter valve negativeWhen lotus is larger, air cooler and water-cooling tower are all put into operation.
Further, outer cooling circuit hollow cooler 2 and water-cooling tower 3 set gradually along water (flow) direction, secondRoad is connected between the water side of air cooler 2 and the water inlet end of converter valve 1.
As shown in Figure 1, arrow instruction inner cold water water (flow) direction, when inner cold water is flowed through converter valve 1, by its heatTaking away temperature raises. Lower or the converter valve of winter environment temperature load hour, the first magnetic valve 4 and the 3rd electricityMagnet valve 6 is closed, and the second magnetic valve 5 is opened, and the inner cold water after intensification is again flowed through and changed after air cooler 2 is coolingStream valve. When lower the or converter valve of summer environment temperature load is larger, the first magnetic valve 4 and the 3rd magnetic valve 6 are openedOpen, the second magnetic valve 5 cuts out, and the inner cold water after intensification is flowed through after cooling again through air cooler 2 and water-cooling tower 3Converter valve.
Regional converter station project applicability at " drought and water shortage, summer are extremely hot, winter severe cold " for this type of coolingHeight, this type of cooling can not only overcome the deficiency of engineering location shortage of water resources, and it is cold effectively to solve summerThe problems such as but capacity is large, preventing freeze in winter.
Claims (4)
1. the outer cooling system of converter valve, is characterized in that: comprise air cooler (2), water-cooling tower (3),The first magnetic valve (4), the second magnetic valve (5) and the 3rd magnetic valve (6); Described air cooler (2) and water-cooledTower (3) is connected to converter valve (1) two ends as the outer cooling circuit of converter valve (1) after connecting by pipeline,In outer cooling circuit, be also provided with second branch road in parallel with water-cooling tower (3), the second magnetic valve (5) is arranged onOn the second branch road, the first magnetic valve (4) and the 3rd magnetic valve (6) are arranged on respectively going out of water-cooling tower (3)On water end (W.E.) and water inlet end pipeline.
2. the outer cooling system of converter valve according to claim 1, is characterized in that: described water-cooling tower (3)Adopt closed cooling tower.
3. the outer cooling system of converter valve according to claim 1, is characterized in that: described outer cooling backRoad hollow cooler (2) and water-cooling tower (3) set gradually along water (flow) direction.
4. the outer cooling system of converter valve according to claim 3, is characterized in that: described the second branch roadBe connected between the water side of air cooler (2) and the water inlet end of converter valve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521141438.8U CN205265542U (en) | 2015-12-31 | 2015-12-31 | Change of current valve separately cooling is system but |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521141438.8U CN205265542U (en) | 2015-12-31 | 2015-12-31 | Change of current valve separately cooling is system but |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205265542U true CN205265542U (en) | 2016-05-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521141438.8U Active CN205265542U (en) | 2015-12-31 | 2015-12-31 | Change of current valve separately cooling is system but |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205265542U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107846811A (en) * | 2016-09-19 | 2018-03-27 | 全球能源互联网研究院有限公司 | The cooling means and cooling device of a kind of converter valve |
| 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 |
| CN110806053A (en) * | 2019-12-03 | 2020-02-18 | 中国电力工程顾问集团西北电力设计院有限公司 | Closed converter valve external cooling system and method based on ground source heat exchange |
-
2015
- 2015-12-31 CN CN201521141438.8U patent/CN205265542U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107846811A (en) * | 2016-09-19 | 2018-03-27 | 全球能源互联网研究院有限公司 | The cooling means and cooling device of a kind of converter valve |
| 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 |
| CN110806053A (en) * | 2019-12-03 | 2020-02-18 | 中国电力工程顾问集团西北电力设计院有限公司 | Closed converter valve external cooling system and method based on ground source heat exchange |
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| C14 | Grant of patent or utility model | ||
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