CN110255652A - A kind of ultra-high voltage converter station valve cooling system inner cold water nitrogen deoxidation method and device - Google Patents
A kind of ultra-high voltage converter station valve cooling system inner cold water nitrogen deoxidation method and device Download PDFInfo
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- CN110255652A CN110255652A CN201910506404.0A CN201910506404A CN110255652A CN 110255652 A CN110255652 A CN 110255652A CN 201910506404 A CN201910506404 A CN 201910506404A CN 110255652 A CN110255652 A CN 110255652A
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- 238000001816 cooling Methods 0.000 title claims abstract description 58
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 233
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 208
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 104
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000001301 oxygen Substances 0.000 claims abstract description 87
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 87
- 238000006392 deoxygenation reaction Methods 0.000 claims abstract description 73
- 238000002347 injection Methods 0.000 claims abstract description 31
- 239000007924 injection Substances 0.000 claims abstract description 31
- 238000005276 aerator Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000027734 detection of oxygen Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of ultra-high voltage converter station valve cooling system inner cold water nitrogen deoxidation method and device, the method for the present invention step includes realizing air deoxygenation by injection nitrogen to the upper air of water storage device in advance；The inner cold water of ultra-high voltage converter station valve cooling system is injected into water storage device, makes nitrogen content increase, oxygen content in water storage device reduce to realize inner cold water deoxygenation the aerator injection nitrogen in water storage device；Including water storage device and nitrogen cylinder, the top of water storage device is equipped with manual exhaust valve and air deoxygenation nitrogen inlet etc..The present invention, which can be realized, realizes air deoxygenation by injection nitrogen to the upper air of water storage device, after inner cold water injects water storage device, nitrogen content increase, oxygen content in water storage device is made to reduce to realize inner cold water deoxygenation the aerator injection nitrogen in water storage device, so as to the dissolved oxygen content of strict control inner cold water, it is ensured that inner cold water deaerating effect and inner cold water oxygen removal efficiency.
Description
Technical field
The present invention relates to ultra-high voltage converter station valve cooling system inner cold water deoxygenation technologies, and in particular to a kind of extra-high voltage converter
It stands valve cooling system inner cold water nitrogen deoxidation method and device.
Background technique
The each valve group of UHVDC converter station configures a set of independent valve cooling system, and the system is by interior water-cooling system
It is formed with outer water-cooling system, interior water-cooling system directly cools down converter valve, avoids converter valve equipment from overheating, cause crystalline substance
The components such as brake tube cross cause thermal damage and accelerated ageing.One is equipped on interior water-cooling system pipeline in the valve tower of converter valve cooling
The platinum electrode for clamping down on inner cold water road current potential, inhibiting Faradaic current of fixed number amount.Table is studied through China Electric Power Research Institute
Bright, the dissolved oxygen content in inner cold water is higher, and the easier fouling of platinum electrode seriously affects its electric conductivity, seriously threatens and change
Flow the stable operation of valve.Valve tower maintenance and the maintenance of interior water-cooling system are mended, after row's inner cold water, and inner cold water dissolved oxygen content generally exists
2000ppb or so, state's net professional standard are no more than 200ppb, and oxygen content severely exceeds.Therefore, in valve tower maintenance and interior water cooling
When system overhaul is mended, arranges inner cold water, the dissolved oxygen of internal water-cooling system is needed to be removed.
Currently, nitrogen deaeration plant and operating feature are as follows in converter station: (1) domestic all sharp using high billows and Xu Ji crystalline substance
The converter station of valve cooling system, valve cooling system do not have nitrogen deoxygenation function really quickly, safe；(2) using current
Equipment, which carries out nitrogen deoxygenation, need to expend a large amount of high pure nitrogens and time；(3) nitrogen displacement dissolved oxygen is general in natural operational process
40 days or more are needed, dissolved oxygen in inner cold water could be down to 200ppb hereinafter, country's converter station is all made of this side substantially at present
Formula；(4) when valve tower maintenance and the maintenance of interior water-cooling system mend, arrange inner cold water, though using closed container, still have a large amount of
Oxygen enters in inner cold water, and inner cold water dissolved oxygen content is caused to severely exceed.
Summary of the invention
The technical problem to be solved in the present invention: in view of the above problems in the prior art, a kind of ultra-high voltage converter station valve is provided
Cooling system inner cold water nitrogen deoxidation method and device, the present invention, which can be realized, passes through injection nitrogen to the upper air of water storage device
Gas realizes air deoxygenation, after inner cold water injects water storage device, makes water storage to the aerator injection nitrogen in water storage device
Nitrogen content increases in device, oxygen content reduces to realize inner cold water deoxygenation, so as to the molten of strict control inner cold water
Solve oxygen content, it is ensured that inner cold water deaerating effect and inner cold water oxygen removal efficiency.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of ultra-high voltage converter station valve cooling system inner cold water nitrogen deoxidation method, it is characterised in that implementation steps include:
1) air deoxygenation is realized by injection nitrogen to the upper air of water storage device in advance；
2) inner cold water of ultra-high voltage converter station valve cooling system is injected into water storage device, the aerator in water storage device is injected
Nitrogen makes nitrogen content increase, oxygen content in water storage device reduce to realize inner cold water deoxygenation.
Optionally, the detailed step of step 1) includes: to water storage device by injecting nitrogen, oxygen being made to pass through water storage device
On manual exhaust valve discharge, while the oxygen content in the air in water storage device is detected, if the oxygen content in air
Less than the first setting value, then stops the upper air injection nitrogen to water storage device, closes the manual exhaust valve on water storage device,
And jump execution step 2；Otherwise, continue to jump execution step 1).
Optionally, the detailed step of step 2 includes: that the inner cold water of ultra-high voltage converter station valve cooling system is injected water storage
Device, increase nitrogen content the aerator injection nitrogen in water storage device, oxygen content reduce from
And realize inner cold water deoxygenation, while detecting the oxygen content in the liquid in water storage device, if the oxygen content in liquid is small
In the second setting value, then the inner cold water after deoxygenation is discharged, terminates and exit；Otherwise, continue to jump execution step 2.
The present invention provides a kind of ultra-high voltage converter station valve cooling system inner cold water nitrogen deaerating plant, including water storage device and
The top of nitrogen cylinder, the water storage device is equipped with manual exhaust valve and air deoxygenation nitrogen inlet, the lower part of the water storage device
It is equipped with and deoxygenation in water equipped with deoxygenation nitrogen inlet, inner cold water entrance and deoxygenation water out in water, and in the water storage device
The aerator of nitrogen inlet connection, the air deoxygenation nitrogen inlet are connected by pressure maintaining valve with the output end of nitrogen cylinder, institute
Deoxygenation nitrogen inlet in water is stated to be connected by deoxygenation valve with the output end of nitrogen cylinder.
Optionally, the water storage device is equipped with oxygen content detector in oxygen in water detector and air, the water
The detector of middle dissolution oxygen detection is plugged in the bottom or lower part of water storage device, the detection of oxygen content detector in the air
Head is plugged in the top or top of water storage device.
Optionally, the output end of the nitrogen cylinder is serially connected with pressure reducing valve.
Optionally, the output end of the nitrogen cylinder is serially connected with flow control valve.
The present invention provides a kind of application method of aforementioned ultra-high voltage converter station valve cooling system inner cold water nitrogen deaerating plant,
Implementation steps include:
S1 pressure maintaining valve) is opened in advance, and air deoxygenation is realized by injection nitrogen to water storage device；
S2 the inner cold water of ultra-high voltage converter station valve cooling system) is injected into water storage device by inner cold water entrance, opens deoxygenation valve
Nitrogen content increase, oxygen content in water storage device is made to reduce to realize the aerator injection nitrogen in water storage device
Inner cold water deoxygenation.
Optionally, step S1) detailed step include: open pressure maintaining valve to water storage device by injection nitrogen, make oxygen
By the manual exhaust valve discharge on water storage device, while the oxygen content in the air in water storage device is detected, if air
In oxygen content less than the first setting value, then close pressure maintaining valve and stop to the upper air of water storage device injection nitrogen, close
Manual exhaust valve on water storage device, and jump and execute step S2)；Otherwise, continue to jump and execute step S1).
Optionally, step S2) detailed step include: by the inner cold water of ultra-high voltage converter station valve cooling system by interior cold
Water inlet injects water storage device, increase nitrogen content the aerator injection nitrogen in water storage device,
Oxygen content reduces to realize inner cold water deoxygenation, while detecting the oxygen content in the liquid in water storage device, if liquid
In oxygen content less than the second setting value, then by deoxygenation water out by after deoxygenation inner cold water be discharged, terminate and exit；It is no
Then, continue to jump and execute step S2).
Compared to the prior art, ultra-high voltage converter station valve cooling system inner cold water nitrogen deoxidation method of the present invention has following
Advantage:
1, ultra-high voltage converter station valve cooling system inner cold water nitrogen deoxidation method of the present invention is in advance to the upper air of water storage device
Air deoxygenation is realized by injection nitrogen；The inner cold water of ultra-high voltage converter station valve cooling system is injected into water storage device, to water storage
Aerator injection nitrogen in device makes nitrogen content increase, oxygen content in water storage device reduce to realize inner cold water
Deoxygenation can be realized and realize air deoxygenation by injection nitrogen to the upper air of water storage device, in conjunction with Converter Station Valve cooling system
The contact of the characteristics of system inner cold water deoxygenation and requirement isolation inner cold water with air, after inner cold water injects water storage device, to water storage
Aerator injection nitrogen in device makes nitrogen content increase, oxygen content in water storage device reduce to realize inner cold water
Deoxygenation, so as to the dissolved oxygen content of strict control inner cold water, it is ensured that inner cold water deaerating effect and inner cold water oxygen removal efficiency,
The problem of being able to solve converter station valve tower water dissolution too high oxygen level, improves the stability of change of current station equipment.
2, implementation of the present invention is simple and convenient to operate, is low in cost, is not necessarily to electric control system.
Compared to the prior art, ultra-high voltage converter station valve cooling system inner cold water nitrogen deaerating plant of the present invention has following
Advantage: ultra-high voltage converter station valve cooling system inner cold water nitrogen deaerating plant of the present invention ultra-high voltage converter station valve to realize the present invention
The device of cooling system inner cold water nitrogen deoxidation method equally also has ultra-high voltage converter station valve cooling system inner cold water of the present invention
The aforementioned advantages of nitrogen deoxidation method, and ultra-high voltage converter station valve cooling system inner cold water nitrogen deaerating plant structure of the present invention
It is very simple.
Detailed description of the invention
Fig. 1 is the basic principle schematic of present invention method.
Fig. 2 is the principle schematic diagram of the device of that embodiment of the invention.
Fig. 3 is the operation principle schematic diagram of the device of that embodiment of the invention.
Marginal data: 1, water storage device；10, manual exhaust valve；11, air deoxygenation nitrogen inlet；111, pressure maintaining valve；12,
Deoxygenation nitrogen inlet in water；121, deoxygenation valve；13, inner cold water entrance；14, deoxygenation water out；15, aerator；2, nitrogen cylinder；
21, pressure reducing valve；22, flow control valve；3, oxygen in water detector；4, oxygen content detector in air.
Specific embodiment
As shown in Figure 1, the implementation steps of the present embodiment ultra-high voltage converter station valve cooling system inner cold water nitrogen deoxidation method
Include:
1) air deoxygenation is realized by injection nitrogen to the upper air of water storage device in advance；
2) inner cold water of ultra-high voltage converter station valve cooling system is injected into water storage device, the aerator in water storage device is injected
Nitrogen makes nitrogen content increase, oxygen content in water storage device reduce to realize inner cold water deoxygenation, and wherein aerator can
It realizes the nitrogen of unit quantity and the Maximum Contact face of water, improves nitrogen oxygen removal efficiency.
In the present embodiment, the detailed step of step 1) includes: to water storage device by injecting nitrogen, oxygen being made to pass through water storage
Manual exhaust valve discharge on device, while the oxygen content in the air in water storage device is detected, if the oxygen in air
Content then stops the upper air injection nitrogen to water storage device, closes the manual row on water storage device less than the first setting value
Air valve, and jump execution step 2；Otherwise, continue to jump execution step 1).
In the present embodiment, the detailed step of step 2 includes: to inject the inner cold water of ultra-high voltage converter station valve cooling system
Water storage device subtracts nitrogen content increase, oxygen content in water storage device the aerator injection nitrogen in water storage device
Less to realize inner cold water deoxygenation, while the oxygen content in the liquid in water storage device is detected, if the oxygen in liquid contains
Inner cold water after deoxygenation is then discharged less than the second setting value, terminates and exit by amount；Otherwise, continue to jump execution step 2.
As shown in Fig. 2, the present embodiment provides a kind of ultra-high voltage converter station valve cooling system inner cold water nitrogen deaerating plant, packet
Water storage device 1 and nitrogen cylinder 2 are included, the top of water storage device 1 is equipped with manual exhaust valve 10 and air deoxygenation nitrogen inlet 11, water storage
The lower part of device 1 is equipped with deoxygenation nitrogen inlet 12, inner cold water entrance 13 and deoxygenation water out 14 in water, and in water storage device 1
Equipped with the aerator 15 being connected to deoxygenation nitrogen inlet 12 in water, the nitrogen and water that aerator 15 can realize unit quantity are most
Large contact surface, improves nitrogen oxygen removal efficiency, and air deoxygenation nitrogen inlet 11 passes through the output end phase of pressure maintaining valve 111 and nitrogen cylinder 2
Even, deoxygenation nitrogen inlet 12 is connected by deoxygenation valve 121 with the output end of nitrogen cylinder 2 in water.Pressure maintaining valve 111, deoxygenation valve 121
Switch achievable water storage device 1 to be in pressure stabilizing state or remove oxygen condition, pressure stabilizing state prevents oxygen in air from entering water storage device 1
It is interior, except oxygen condition realizes the function of removal oxygen in water.
Water storage device 1 is closed container, and for carrying out deoxygenation to inner cold water, wherein inner cold water entrance 13 and deaerated water go out
It is equipped with control valve on mouth 14, for controlling the injection and discharge of inner cold water.
Nitrogen cylinder 2 is for being stored with high pure nitrogen.
As shown in Fig. 2, water storage device 1 is equipped with oxygen content detector 4 in oxygen in water detector 3 and air, in water
The detector of dissolution oxygen detection 3 is plugged in the bottom or lower part of water storage device 1, the detector of oxygen content detector 4 in air
It is plugged in the top or top of water storage device 1.Oxygen content detector 4 is in oxygen in water detector 3 and air for realizing water
The detection function of oxygen content in middle dissolved oxygen and air.
As shown in Fig. 2, the output end of nitrogen cylinder 2 be serially connected with pressure reducing valve 21, it can be achieved that nitrogen pressure adjusting, make deoxygenation
Journey is optimal effect.It (also can according to need straight between nitrogen cylinder 2, pressure reducing valve 21 by pipeline connection in the present embodiment
Even).
As shown in Fig. 2, the output end of nitrogen cylinder 2 be serially connected with flow control valve 22, it can be achieved that nitrogen flow adjusting, make to remove
Oxygen process is optimal effect, (can also basis by pipeline connection between pressure reducing valve 21, flow control valve 22 in the present embodiment
It needs direct-connected).
In addition, the present embodiment provides a kind of aforementioned ultra-high voltage converter station valve cooling system inner cold water nitrogen deoxygenations referring to Fig. 1
The application method of device, implementation steps include:
S1 pressure maintaining valve 111) is opened in advance, and air deoxygenation is realized by injection nitrogen to water storage device 1；
S2 the inner cold water of ultra-high voltage converter station valve cooling system) is injected into water storage device by inner cold water entrance 13, opens deoxygenation
Valve 121 injects nitrogen to the aerator 15 in water storage device 1 and nitrogen content increase, oxygen content in water storage device 1 is subtracted
Less to realize inner cold water deoxygenation.
Referring to Fig. 3, the present embodiment step S1) detailed step include: to open pressure maintaining valve 111 to pass through note to water storage device 1
Enter nitrogen, oxygen is discharged by the manual exhaust valve 10 on water storage device 1, while detecting in the air in water storage device 1
Oxygen content, if the oxygen content in air is closed pressure maintaining valve 111 and stopped to the upper of water storage device less than the first setting value
Portion's air injects nitrogen, closes the manual exhaust valve 10 on water storage device, and jumps and execute step S2)；Otherwise, continue to jump to hold
Row step S1).
Referring to Fig. 3, the present embodiment step S2) detailed step include: will be cold in ultra-high voltage converter station valve cooling system
Water injects water storage device 1 by inner cold water entrance 13, injects nitrogen to the aerator 15 in water storage device 1 and makes water storage device
Nitrogen content increases in 1, oxygen content is reduced to realize inner cold water deoxygenation, while being detected in the liquid in water storage device 1
Oxygen content, if oxygen content in liquid less than the second setting value, will be cold in after deoxygenation by deoxygenation water out 14
Water discharge, terminates and exits；Otherwise, continue to jump and execute step S2).
In conclusion the present embodiment ultra-high voltage converter station valve cooling system inner cold water nitrogen deaerating plant and its application method
Have the advantages that structure is simple and convenient to operate, is low in cost, electric control system is not necessarily to, in conjunction in Converter Station Valve cooling system
The characteristics of cold water deoxygenation and requirement completely cut off contact of the inner cold water with air, and can be improved nitrogen oxygen removal efficiency, are able to solve and change
The problem of stream station valve tower water dissolution too high oxygen level, improve the stability of change of current station equipment.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of ultra-high voltage converter station valve cooling system inner cold water nitrogen deoxidation method, it is characterised in that implementation steps include:
1) air deoxygenation is realized by injection nitrogen to the upper air of water storage device in advance；
2) inner cold water of ultra-high voltage converter station valve cooling system is injected into water storage device, the aerator in water storage device is injected
Nitrogen makes nitrogen content increase, oxygen content in water storage device reduce to realize inner cold water deoxygenation.
2. ultra-high voltage converter station valve cooling system inner cold water nitrogen deoxidation method according to claim 1, which is characterized in that
The detailed step of step 1) includes: to water storage device by injecting nitrogen, oxygen being made to pass through the manual exhaust valve on water storage device
Discharge, while detecting the oxygen content in the air in water storage device, if the oxygen content in air less than the first setting value,
Then stop the upper air injection nitrogen to water storage device, close the manual exhaust valve on water storage device, and jumps execution step
2)；Otherwise, continue to jump execution step 1).
3. ultra-high voltage converter station valve cooling system inner cold water nitrogen deoxidation method according to claim 1, which is characterized in that
The detailed step of step 2 includes: that the inner cold water of ultra-high voltage converter station valve cooling system is injected water storage device, to water storage device
Interior aerator injection nitrogen makes nitrogen content increase, oxygen content in water storage device reduce to realize that inner cold water removes
Oxygen, while detecting the oxygen content in the liquid in water storage device, if oxygen content in liquid less than the second setting value,
By the inner cold water discharge after deoxygenation, terminates and exit；Otherwise, continue to jump execution step 2.
4. a kind of ultra-high voltage converter station valve cooling system inner cold water nitrogen deaerating plant, which is characterized in that including water storage device (1)
Manual exhaust valve (10) and air deoxygenation nitrogen inlet (11), institute are equipped with the top of nitrogen cylinder (2), the water storage device (1)
The lower part for stating water storage device (1) is equipped with deoxygenation nitrogen inlet (12), inner cold water entrance (13) and deoxygenation water out (14) in water,
And the aerator (15) being connected to deoxygenation nitrogen inlet (12) in water, the air deoxygenation are equipped in the water storage device (1)
Nitrogen inlet (11) is connected by pressure maintaining valve (111) with the output end of nitrogen cylinder (2), and deoxygenation nitrogen inlet (12) is logical in the water
Deoxygenation valve (121) is crossed to be connected with the output end of nitrogen cylinder (2).
5. ultra-high voltage converter station valve cooling system inner cold water nitrogen deaerating plant according to claim 4, which is characterized in that
The water storage device (1) is equipped with oxygen content detector (4) in oxygen in water detector (3) and air, dissolves in the water
The detector of oxygen detection (3) is plugged in the bottom or lower part of water storage device (1), oxygen content detector (4) in the air
Detector is plugged in the top or top of water storage device (1).
6. ultra-high voltage converter station valve cooling system inner cold water nitrogen deaerating plant according to claim 4, which is characterized in that
The output end of the nitrogen cylinder (2) is serially connected with pressure reducing valve (21).
7. ultra-high voltage converter station valve cooling system inner cold water nitrogen deaerating plant according to claim 4, which is characterized in that
The output end of the nitrogen cylinder (2) is serially connected with flow control valve (22).
8. ultra-high voltage converter station valve cooling system inner cold water nitrogen deaerating plant described in a kind of any one of claim 4~7
Application method, it is characterised in that implementation steps include:
S1 pressure maintaining valve (111)) are opened in advance, and air deoxygenation is realized by injection nitrogen to water storage device (1)；
S2 the inner cold water of ultra-high voltage converter station valve cooling system) is injected into water storage device by inner cold water entrance (13), opening is removed
Oxygen valve (121) increases water storage device (1) interior nitrogen content aerator (15) the injection nitrogen in water storage device (1),
Oxygen content reduces to realize inner cold water deoxygenation.
9. the application method of ultra-high voltage converter station valve cooling system inner cold water nitrogen deaerating plant according to claim 8,
It is characterized in that, step S1) detailed step include: open pressure maintaining valve (111) to water storage device (1) by injection nitrogen, make
Oxygen detects the oxygen in the air in water storage device (1) by manual exhaust valve (10) discharge on water storage device (1)
Content, if the oxygen content in air closes pressure maintaining valve (111) stopping to the top of water storage device less than the first setting value
Air injects nitrogen, closes the manual exhaust valve (10) on water storage device, and jumps and execute step S2)；Otherwise, continue to jump to hold
Row step S1).
10. the application method of ultra-high voltage converter station valve cooling system inner cold water nitrogen deaerating plant according to claim 8,
It is characterized in that, step S2) detailed step include: to enter the inner cold water of ultra-high voltage converter station valve cooling system by inner cold water
Mouth (13) injection water storage device (1) makes in water storage device (1) aerator (15) the injection nitrogen in water storage device (1)
Nitrogen content increases, oxygen content reduces to realize inner cold water deoxygenation, while detecting the oxygen in the liquid in water storage device (1)
Gas content, if oxygen content in liquid less than the second setting value, will be cold in after deoxygenation by deoxygenation water out (14)
Water discharge, terminates and exits；Otherwise, continue to jump and execute step S2).
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| CN113860414A (en) * | 2021-09-02 | 2021-12-31 | 华电湖北发电有限公司武昌热电分公司 | Heat supply first station condensation return water nitrogen regulation deoxidization system |
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