CN102394551A - Direct current transmission converter valve cooling system - Google Patents
Direct current transmission converter valve cooling system Download PDFInfo
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- CN102394551A CN102394551A CN2011102995684A CN201110299568A CN102394551A CN 102394551 A CN102394551 A CN 102394551A CN 2011102995684 A CN2011102995684 A CN 2011102995684A CN 201110299568 A CN201110299568 A CN 201110299568A CN 102394551 A CN102394551 A CN 102394551A
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- converter valve
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
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Abstract
The invention discloses a direct current transmission converter valve cooling system, which comprises a main circulating water pump, a heating tank, an air radiator, a main filter, a converter valve and a degassing tank, wherein the outlet of the main circulating water pump, the heating tank, the air radiator, the main filter, the converter valve, the degassing tank and the inlet of the main circulating pump are connected together in turn through a pipeline to form a circulation loop. The direct current transmission converter valve cooling system can provide stable flow capacity and effective cooling, and the cooling water valve-entering temperature is basically stable without rapidly rising and dropping; besides, the direct current transmission converter valve cooling system can change the water-cooling heat dissipating capacity to track thermal load changes of a thyristor valve to ensure that the cooling water valve-entering temperature is stabilized in a set range, a reliable guarantee is provided for stable running of the converter valve, and the safety of power grid construction can be greatly improved.
Description
Technical field
The present invention relates to a kind of cooling system, particularly a kind of extra-high voltage direct-current transmission thyristor dc current transmission valve cooling system that is used for.
Background technology
Sending electricity and big grid power field, interchange is become direct current or the converter valve that direct current becomes interchange is widely used.Because its operating voltage grade can be up to ± 800kv, therefore power can will have a large amount of heats to produce up to 6000MW during operation, and therefore according to IEEE and national standard, the type of cooling of converter valve adopts the pure water cooling.In the flexible transmission field, converter valve cooling system has obtained ripe utilization, but in the direct current transportation field of operating voltage grade up to ± 800kv, the utilization of converter valve cooling system then just begins.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of converter valve water-cooling system is provided, converter valve is cooled off, for the stable operation of converter valve in practical application provides effective guarantee.
The object of the invention is realized through following technical scheme:
A kind of direct-current transmission converter valve cooling system comprises major cycle water pump, heating tank, air radiator, main filter, converter valve and degassing tank; Said major cycle exit of pump, heating tank, air radiator, main filter, converter valve, degassing tank and the import of major cycle water pump are through the pipeline formation circulation circuit that is connected in turn.
In order better to realize the present invention; Said direct-current transmission converter valve cooling system comprises the water treatment loop; Said water treatment loop comprises ion-exchanger and accurate filter; Said water treatment loop is parallelly connected with converter valve, and said ion-exchanger is connected with accurate filter, and said ion-exchanger and accurate filter are equipped with subsequent use.For adapting to the instructions for use of large power power electronic appliance under high voltage condition, prevent under high voltage environment, to produce leakage current, coolant must possess extremely low conductivity.Therefore on the major cycle cooling circuit parallel connection deionized water treatment loop.The a part of coolant that the presets flow ion-exchanger of flowing through constantly purifies the ion that possibly separate out in the pipeline, through accurate filter, expansion drum, collaborates before main circulation pump with the main circulation loop coolant then.Two ion-exchangers can the using and the reserved, and the resin in the operation ion-exchanger lost efficacy, when causing the coolant conductivity to raise, and changeable subsequent use ion-exchanger, the assurance system normally moves.Two accurate filters can the using and the reserved, when the pressure reduction of operation accurate filter raises, and changeable subsequent use accurate filter, the assurance system normally moves.
In order better to realize the present invention, said direct-current transmission converter valve cooling system comprises the nitrogen stabilization pressure system, and said nitrogen stabilization pressure system comprises expansion drum and nitrogen cylinder; Expansion drum is connected with accurate filter; Nitrogen cylinder is connected with expansion drum, and said expansion drum is two series connection, and nitrogen cylinder is provided with subsequent use.Two volume change that expansion drum available buffer cooling water produces because of variations in temperature.The top of expansion drum is filled with the high pure nitrogen of steady pressure, when coolant because of exosmosing on a small quantity or electrolysis when losing, nitrogen is expanded automatically, is pressed into circulating pipe system to coolant, to keep the constant pressure of pipeline and being full of of coolant.
In order better to realize the present invention; Said direct-current transmission converter valve cooling system comprises the automatic water supplement system; Said automatic water supplement system comprises raw water pump, moisturizing filter, former water pot, small pump and the moisturizing valve with electrically motorized operation that connects successively; The moisturizing valve with electrically motorized operation is connected with ion-exchanger, and said small pump is provided with subsequent use.When expansion drum liquid was lower than small pump startup liquid level, the moisturizing valve with electrically motorized operation was opened automatically, and small pump starts automatically, stops automatically when reaching the termination of pumping liquid level.When former water pot liquid level was lower than set point, alert started the raw water pump moisturizing, keeps being full of supplementing water in the former water pot.
In order better to realize the present invention, said heating tank comprises at least one electric heater.When the extremely low and converter valve of outdoor environment temperature in winter is in when stopping transport, can starts electric heater and freeze to avoid outdoor air cooler pipeline etc.
In order better to realize the present invention, said degassing tank comprises at least one electric heater.Winter, outdoor environment temperature was extremely low, and the thyristor valve underrun when cooling water advances the valve temperature and drops to set point, starts electric heater, prevented that cooling water from advancing that the valve temperature is low excessively to be caused along the Cheng Guanlu and the device damage that is cooled; Or cooling water starts electricity and adds device when advancing the valve temperature and dropping near dew point, prevents thyristor radiator or pipeline surface sweating influence insulation.
In order better to realize the present invention; Said direct-current transmission converter valve cooling system comprises electric T-shaped valve, butterfly valve and ball valve; Electric T-shaped valve is connected the back in the ball valve parallel connection with butterfly valve; Be connected between heating tank and the major cycle water pump, electric T-shaped valve the 3rd end is connected with main filter inlet, and said butterfly valve and electric T-shaped valve are equipped with subsequent use.
In order better to realize the present invention, said major cycle water pump, heating tank and main filter are equipped with subsequent use.
In order better to realize the present invention, said converter valve and degassing tank are provided with bypass.
In order better to realize the present invention, said water treatment loop is parallelly connected with the conductivity measurement branch road.Be used for the conductivity of sampled measurements main circulation loop
The invention has the beneficial effects as follows: direct-current transmission converter valve cooling system provided by the invention can provide stable flow rate; Effectively cooling, it is basicly stable that cooling water advances the valve temperature, and no-cooling-water advances the rapid drawdown that rises sharply of valve temperature; The direct-current transmission converter valve cooling system can change the water-cooling amount and follow the tracks of the variation of thyristor valve heat load; Make cooling water advance the valve temperature stabilization in setting range,, can greatly improve the fail safe of power grid construction for converter valve stable operation provides reliable guarantee.
Description of drawings
Fig. 1 is the described system configuration sketch mapes of an embodiment of the invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing an embodiment of the invention are described in further detail, but execution mode of the present invention is not limited thereto.
As shown in Figure 1, a kind of direct-current transmission converter valve cooling system comprises major cycle water pump 1, heating tank 4, air radiator 5, main filter 6, converter valve 7 and degassing tank 8; Said major cycle water pump 1 outlet, heating tank 4, air radiator 5, main filter 6, converter valve 7, degassing tank 8 and 1 import of major cycle water pump are through the pipeline formation circulation circuit that is connected in turn.
Said direct-current transmission converter valve cooling system comprises the water treatment loop; Said water treatment loop comprises ion-exchanger 9 and accurate filter 10; Said water treatment loop is parallelly connected with converter valve 7; Said ion-exchanger 9 is connected with accurate filter 10, and said ion-exchanger 9 and accurate filter 10 are equipped with subsequent use.
Said direct-current transmission converter valve cooling system comprises the nitrogen stabilization pressure system; Said nitrogen stabilization pressure system comprises expansion drum 11 and nitrogen cylinder 12, and expansion drum 11 is connected with accurate filter 10, and nitrogen cylinder 12 is connected with expansion drum 11; Said expansion drum 11 is two series connection, and nitrogen cylinder 12 is provided with subsequent use.
Said direct-current transmission converter valve cooling system comprises the automatic water supplement system; Said automatic water supplement system comprises raw water pump 13, moisturizing filter 14, former water pot 15, small pump 16 and the moisturizing valve with electrically motorized operation 17 that connects successively; Moisturizing valve with electrically motorized operation 17 is connected with ion-exchanger 9, and said small pump 16 is provided with subsequent use.
Said heating tank 4 comprises at least one electric heater 41.
Said degassing tank 8 comprises at least one electric heater 81.
Said direct-current transmission converter valve cooling system comprises electric T-shaped valve 3, butterfly valve 2 and ball valve 18; Electric T-shaped valve 3 is connected the back in the ball valve parallel connection with butterfly valve 2; Be connected between heating tank 4 and the major cycle water pump 1; Electric T-shaped valve 3 the 3rd end is connected with main filter 6 imports, and said butterfly valve 2 and electric T-shaped valve 3 are equipped with subsequent use.
Said major cycle water pump 1, heating tank 4 and main filter 6 are equipped with subsequent use.
Said converter valve 7 and degassing tank 8 are provided with bypass.
Said water treatment loop is parallelly connected with the conductivity measurement branch road.
Said pipeline is provided with and detects the loop instrument of pressure, temperature, flow and conductivity everywhere, and visual and accurate obtains various technical parameters.
The foregoing description is a preferred implementation of the present invention; But execution mode of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. a direct-current transmission converter valve cooling system is characterized in that: comprise major cycle water pump (1), heating tank (4), air radiator (5), main filter (6), converter valve (7) and degassing tank (8); Said major cycle water pump (1) outlet, heating tank (4), air radiator (5), main filter (6), converter valve (7), degassing tank (8) and major cycle water pump (1) import are through the pipeline formation circulation circuit that is connected in turn.
2. a kind of direct-current transmission converter valve cooling system according to claim 1; It is characterized in that: said direct-current transmission converter valve cooling system comprises the water treatment loop; Said water treatment loop comprises ion-exchanger (9) and accurate filter (10); Said water treatment loop is parallelly connected with converter valve (7), and said ion-exchanger (9) is connected with accurate filter (10), and said ion-exchanger (9) and accurate filter (10) are equipped with subsequent use.
3. a kind of direct-current transmission converter valve cooling system according to claim 2; It is characterized in that: said direct-current transmission converter valve cooling system comprises the nitrogen stabilization pressure system; Said nitrogen stabilization pressure system comprises expansion drum (11) and nitrogen cylinder (12), and expansion drum (11) is connected with accurate filter (10), and nitrogen cylinder (12) is connected with expansion drum (11); Said expansion drum (11) is two series connection, and nitrogen cylinder (12) is provided with subsequent use.
4. a kind of direct-current transmission converter valve cooling system according to claim 2; It is characterized in that: said direct-current transmission converter valve cooling system comprises the automatic water supplement system; Said automatic water supplement system comprises raw water pump (13), moisturizing filter (14), former water pot (15), small pump (16) and the moisturizing valve with electrically motorized operation (17) that connects successively; Moisturizing valve with electrically motorized operation (17) is connected with ion-exchanger (9), and said small pump (16) is provided with subsequent use.
5. a kind of direct-current transmission converter valve cooling system according to claim 1 is characterized in that: said heating tank (4) comprises at least one electric heater (41).
6. a kind of direct-current transmission converter valve cooling system according to claim 1 is characterized in that: said degassing tank (8) comprises at least one electric heater (81).
7. a kind of direct-current transmission converter valve cooling system according to claim 1; It is characterized in that: said direct-current transmission converter valve cooling system comprises electric T-shaped valve (3), butterfly valve (2) and ball valve (18); Electric T-shaped valve (3) is connected the back in the ball valve parallel connection with butterfly valve (2); Be connected between heating tank (4) and the major cycle water pump (1), electric T-shaped valve (3) the 3rd end is connected with main filter (6) import, and said butterfly valve (2) and electric T-shaped valve (3) are equipped with subsequent use.
8. a kind of direct-current transmission converter valve cooling system according to claim 1 is characterized in that: said major cycle water pump (1), heating tank (4) and main filter (6) are equipped with subsequent use.
9. a kind of direct-current transmission converter valve cooling system according to claim 1 is characterized in that: said converter valve (7) and degassing tank (8) are provided with bypass.
10. a kind of direct-current transmission converter valve cooling system according to claim 2 is characterized in that: said water treatment loop is parallelly connected with the conductivity measurement branch road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102995684A CN102394551A (en) | 2011-09-30 | 2011-09-30 | Direct current transmission converter valve cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102995684A CN102394551A (en) | 2011-09-30 | 2011-09-30 | Direct current transmission converter valve cooling system |
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| CN102394551A true CN102394551A (en) | 2012-03-28 |
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| CN2011102995684A Pending CN102394551A (en) | 2011-09-30 | 2011-09-30 | Direct current transmission converter valve cooling system |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018067A (en) * | 2012-12-05 | 2013-04-03 | 广州高澜节能技术股份有限公司 | Test system for cooling converter valve device |
| CN103018428A (en) * | 2012-12-06 | 2013-04-03 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Test and detection apparatus for ion exchange resin of direct-current power transmission valve cooling system |
| CN103025128A (en) * | 2012-12-05 | 2013-04-03 | 广州高澜节能技术股份有限公司 | Low hybrid wave water cooling system |
| CN103435196A (en) * | 2013-08-28 | 2013-12-11 | 湖南省湘电试验研究院有限公司 | Method and device for purification treatment of cooling water in converter valve |
| CN103435197A (en) * | 2013-08-28 | 2013-12-11 | 湖南省湘电试验研究院有限公司 | Method and device for treating cooling water of convertor station |
| CN103613230A (en) * | 2013-08-28 | 2014-03-05 | 湖南省湘电试验研究院有限公司 | Purification treatment method and device for converter valve outer cooling water |
| CN103934239A (en) * | 2014-04-08 | 2014-07-23 | 国家电网公司 | Converter valve voltage-sharing electrode regeneration device and method |
| CN105099137A (en) * | 2015-08-25 | 2015-11-25 | 许继集团有限公司 | Converter valve cooling system and ionized water removing apparatus |
| CN105226535A (en) * | 2015-10-30 | 2016-01-06 | 比赫电气（太仓）有限公司 | A kind of flexible AC transmission equipment water-cooling system |
| CN106455417A (en) * | 2016-08-31 | 2017-02-22 | 许昌许继晶锐科技有限公司 | Converter valve cooling system and DC power transmission equipment employing same |
| CN107787162A (en) * | 2016-08-31 | 2018-03-09 | 江苏海鼎电气科技有限公司 | Using the cooling back installation and its application method of pure water medium |
| CN109165393A (en) * | 2018-02-06 | 2019-01-08 | 中国西电电气股份有限公司 | A kind of HVDC change of current valve body cooling structure and its cooling system and simulating analysis |
| CN109639104A (en) * | 2017-06-29 | 2019-04-16 | 许昌许继晶锐科技有限公司 | A kind of direct-current transmission converter valve cooling back installation and direct current transportation equipment |
| CN113130936A (en) * | 2021-03-31 | 2021-07-16 | 大连擎研科技有限公司 | Vehicle fuel cell thermal management system and control method thereof |
| CN113772772A (en) * | 2021-08-31 | 2021-12-10 | 国网冀北电力有限公司电力科学研究院 | Dissolved oxygen removal device, internal cooling water system of converter valve and dissolved oxygen removal method thereof |
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| CN202260981U (en) * | 2011-09-30 | 2012-05-30 | 广州高澜节能技术股份有限公司 | Direct-current power transmission and current conversion valve cooling system |
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| CN101634866A (en) * | 2009-02-10 | 2010-01-27 | 广州市高澜水技术有限公司 | Control system of pure water cooling device of high voltage direct current (HVDC) transmission converter valve |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018067A (en) * | 2012-12-05 | 2013-04-03 | 广州高澜节能技术股份有限公司 | Test system for cooling converter valve device |
| CN103025128A (en) * | 2012-12-05 | 2013-04-03 | 广州高澜节能技术股份有限公司 | Low hybrid wave water cooling system |
| CN103018067B (en) * | 2012-12-05 | 2015-09-16 | 广州高澜节能技术股份有限公司 | converter valve device cooling test system |
| CN103018428A (en) * | 2012-12-06 | 2013-04-03 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Test and detection apparatus for ion exchange resin of direct-current power transmission valve cooling system |
| CN103613230A (en) * | 2013-08-28 | 2014-03-05 | 湖南省湘电试验研究院有限公司 | Purification treatment method and device for converter valve outer cooling water |
| CN103435196A (en) * | 2013-08-28 | 2013-12-11 | 湖南省湘电试验研究院有限公司 | Method and device for purification treatment of cooling water in converter valve |
| CN103435197A (en) * | 2013-08-28 | 2013-12-11 | 湖南省湘电试验研究院有限公司 | Method and device for treating cooling water of convertor station |
| CN103613230B (en) * | 2013-08-28 | 2014-12-03 | 湖南省湘电试验研究院有限公司 | Purification treatment method and device for converter valve outer cooling water |
| CN103435196B (en) * | 2013-08-28 | 2015-01-07 | 湖南省湘电试验研究院有限公司 | Method and device for purification treatment of cooling water in converter valve |
| CN103435197B (en) * | 2013-08-28 | 2015-01-07 | 湖南省湘电试验研究院有限公司 | Method and device for treating cooling water of convertor station |
| CN103934239B (en) * | 2014-04-08 | 2016-08-17 | 国家电网公司 | A kind of converter valve screening electrodes regenerating unit and method |
| CN103934239A (en) * | 2014-04-08 | 2014-07-23 | 国家电网公司 | Converter valve voltage-sharing electrode regeneration device and method |
| CN105099137A (en) * | 2015-08-25 | 2015-11-25 | 许继集团有限公司 | Converter valve cooling system and ionized water removing apparatus |
| CN105226535A (en) * | 2015-10-30 | 2016-01-06 | 比赫电气（太仓）有限公司 | A kind of flexible AC transmission equipment water-cooling system |
| CN106455417A (en) * | 2016-08-31 | 2017-02-22 | 许昌许继晶锐科技有限公司 | Converter valve cooling system and DC power transmission equipment employing same |
| CN107787162A (en) * | 2016-08-31 | 2018-03-09 | 江苏海鼎电气科技有限公司 | Using the cooling back installation and its application method of pure water medium |
| CN106455417B (en) * | 2016-08-31 | 2020-07-24 | 许昌许继晶锐科技有限公司 | Converter valve cooling system and direct current transmission equipment using same |
| CN107787162B (en) * | 2016-08-31 | 2023-09-12 | 江苏海鼎电气科技有限公司 | Circulation cooling device adopting pure water medium and application method thereof |
| CN109639104A (en) * | 2017-06-29 | 2019-04-16 | 许昌许继晶锐科技有限公司 | A kind of direct-current transmission converter valve cooling back installation and direct current transportation equipment |
| CN109165393A (en) * | 2018-02-06 | 2019-01-08 | 中国西电电气股份有限公司 | A kind of HVDC change of current valve body cooling structure and its cooling system and simulating analysis |
| CN113130936A (en) * | 2021-03-31 | 2021-07-16 | 大连擎研科技有限公司 | Vehicle fuel cell thermal management system and control method thereof |
| CN113130936B (en) * | 2021-03-31 | 2022-06-14 | 大连擎研科技有限公司 | Vehicle fuel cell thermal management system and control method thereof |
| CN113772772A (en) * | 2021-08-31 | 2021-12-10 | 国网冀北电力有限公司电力科学研究院 | Dissolved oxygen removal device, internal cooling water system of converter valve and dissolved oxygen removal method thereof |
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Application publication date: 20120328 |