CN205945498U - Two cooling water system for water cooled generator that join in marriage of direct current transmission change of current valve - Google Patents
Two cooling water system for water cooled generator that join in marriage of direct current transmission change of current valve Download PDFInfo
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- CN205945498U CN205945498U CN201620896958.8U CN201620896958U CN205945498U CN 205945498 U CN205945498 U CN 205945498U CN 201620896958 U CN201620896958 U CN 201620896958U CN 205945498 U CN205945498 U CN 205945498U
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Abstract
The utility model relates to a two cooling water system for water cooled generator that join in marriage of direct current transmission change of current valve includes in proper order that the flow switches module, three -way valve, separately cooling closed cooling tower, main circulating filter, detects the connecting line that switches module, change of current valve the heating element, degassing tank and each inter -module, wherein flow switching module is connected to three -way valve one end, and the separately cooling closed cooling tower is connected to one end, and the other end is connected on the connecting line between separately cooling closed cooling tower and main circulating filter. The beneficial effects of the utility model reside in that a two cooling water system for water cooled generator that join in marriage of direct current transmission change of current valve is provided, compare prior art, different test condition's demand can be satisfied in medium flow adjustable and control among the realization circulation circuit that it can be convenient, can be according to the change of change of current valve heating load, what make the cooling water advances valve temperature steady at the within range of setting for, the reliability service of guarantee change of current valve, the control range of flow and lift is wideer.
Description
Technical field
This utility model is related to a kind of cooling system, particularly to a kind of double water distribution cooling system of direct-current transmission converter valve.
Background technology
Need to adopt closed circulating cooling system in direct-current transmission converter valve test, it mainly includes internal cooling system, outer
Cooling system, inside and outside cold connection water system and control system etc..Wherein internal cooling system includes main circulation loop, deionization props up
Road, voltage-stabilizing system, water charging system etc..In main circulation loop, the cooling medium of constant pressure and flow velocity, dynamic by main circulation pump
Power circulates, and enters extraneous air cooler, the heat that direct-current transmission converter valve is sent in air cooler with extraneous air
Carry out heat exchange, the cooling medium after cooling enters back into main circulation loop, be back to main circulation pump entrance, form Closed Cycle
Cooling system.
Using the valve module of different electric pressures during converter valve experiments, the heating of each valve module in process of the test is damaged
Consumption is also by difference.For meeting the test requirements document of different valve modules, closed circulating cooling system needs to have flow adjustment range
Condition wide, that flow is controlled, and constant flux water supply can be kept.Existing direct-current transmission converter valve water-cooling system range of accommodation is relatively
Narrow, or when water-cooled demand is larger, discharge is not enough requiring, or when water-cooled demand is less no it is impossible to meet cooling
Method is reduced to low discharge, causes to waste.
Utility model content
The purpose of this utility model is to provide the controlled direct-current transmission converter valve of a kind of range of accommodation width, flow double water distribution
Cooling system.
For achieving the above object, this utility model employs following technical scheme：A kind of direct-current transmission converter valve is double
Water distribution cooling system, includes flow switch module, three-way valve, outer cold closed cooling tower, major cycle filter, detection switching successively
Module, the connecting line of converter valve heat generating component, degassing tank and each inter-module；The connection traffic switching of wherein said three-way valve one end
Module, one end connects outer cold closed cooling tower, and the other end connects the company between cold closed cooling tower and major cycle filter outside
On adapter road, accurately can effectively adjust the flow entering interior circulation and outer cold closed cooling tower；
Described flow switch module includes the first circulation module being connected in parallel and second circulation module, described first circulation
Module includes first entrance pressure gauge, the first main circulation pump, first outlet pressure gauge successively；Described second circulation module is wrapped successively
Include second entrance pressure gauge, the second main circulation pump, second outlet pressure gauge；Described first main circulation pump and the second main circulation pump
Two ends are equipped with valve；Described first main circulation pump and the second main circulation pump are variable frequency pump, and the first main circulation pump and second
The flow adjustable extent of main circulation pump is different；
Described detection handover module includes first detection module and the second detection module being connected in parallel；Described first detection
Module includes the first temperature sensor, first pressure table and first flow sensor successively；Described second detection module wraps successively
Include second temperature sensor, second pressure table and second flow sensor；Described first detection module and the second detection module
Two ends are equipped with valve.
When enabling first circulation module, the valve at the first main circulation pump two ends is opened, the valve at the second main circulation pump two ends
Door is closed；Meanwhile, the valve at first detection module two ends is opened, the valve closing at the second detection module two ends；When enabling
During second circulation module, the valve at the second main circulation pump two ends is opened, the valve closing at the first main circulation pump two ends；Same with this
When, the valve at the second detection module two ends is opened, the valve closing at first detection module two ends.Due to the first main circulation pump and
Two main circulation pump flow adjustable extents are different, achieved relatively by way of first circulation module and the switching of second circulation module
Wide flow adjustment range；If attempt to realize wider flow adjustment range it is most likely that no only with a main circulation pump
Method purchases the circulating pump meeting the requirements, even if can purchase obtaining, its purchase cost and maintenance cost also substantially exceed
This programme.
Preferably, the flow adjustable extent of described first main circulation pump and the second main circulation pump partially overlaps.First is main
The flow adjustable extent of circulating pump and the second main circulation pump partially overlaps and ensure that the first main circulation pump and the second main circulation pump
Can be with seamless switching during switching；Its operation principle is：Power to the flow adjusting the main circulation pump compared with low discharge reaches coincidence model
Enclose；Adjust the main circulation pump power of larger flow to flow quite, now close the valve at the main circulation pump two ends compared with low discharge,
The valve simultaneously opening the main circulation pump two ends of larger flow can achieve seamless switching；Contribute to extending direct-current transmission converter valve
The service life of double water distribution cooling systems, reduces fault rate.
Preferably, the bound of the flow adjustable extent intersection of described first main circulation pump and the second main circulation pump
Difference is less than the 20% of the first main circulation pump flow adjustable extent bound difference；Or it is adjustable less than the second main circulation pump flow
The 20% of adjusting range bound difference.The flow adjustable extent intersection of the first main circulation pump and the second main circulation pump upper
Lower limit difference is for example excessive, can cause the waste in the first main circulation pump and/or the second main circulation pump performance.
Preferably, the double water distribution cooling system of described direct-current transmission converter valve is also sequentially provided with the ion that several are arranged in parallel
Exchanger and ion exchanger filter；Company between the porch of described ion exchanger and filter and detection handover module
Adapter road connects；The outlet of described ion exchanger filter is connected with the pipeline between degassing tank and flow switch module.
Preferably, the exit of described ion exchanger filter is provided with surge tank and nitrogen cylinder；From ion exchanger
The cooling medium flowing out in filter is introduced into surge tank, then flows out from buffering pot bottom, enters detection handover module；Described slow
The top rushing tank is full of nitrogen, and when in system, cooling medium produces change in volume because of temperature, buffering tank deck given automatically by nitrogen cylinder
Portion's QI invigorating, to keep the pressure of pipeline and being full of of cooling medium.
Preferably, it is additionally provided with replenisher tank and small pump in described stream current transmission valve pair water distribution cooling system；Work as system
In occur pressure surge relief tank liquid level be less than setting value when, system can start small pump automatic water supplement.
Preferably, described small pump exit is provided with accurate filter, can cooling medium effectively in removing system
Ion, the long-term electrical conductivity maintaining cooling medium is kept low, thus safeguards system reliability service.
Preferably, described ion exchanger is provided with 1 ~ 4.
The beneficial effects of the utility model there are provided a kind of double water distribution cooling system of direct-current transmission converter valve；Compare existing
There is technology, it can easily be realized the adjustable of closed circuit medium flow and control, and can meet the need of different tests operating mode
Ask；Can be according to the change of converter valve thermic load, make cooling water enters valve temperature stabilization in the range of setting, and ensures converter valve
Reliability service；The range of accommodation of flow and lift is wider.
Brief description
With reference to the accompanying drawings and examples this utility model is further illustrated.
Fig. 1 is the structural representation of the specific embodiment of the double water distribution cooling system of direct-current transmission converter valve of the present utility model
Figure；
In figure mark：1st, the first main circulation pump；2nd, the second main circulation pump；31st, first outlet pressure gauge；32nd, second outlet
Pressure gauge；4th, three-way valve；5th, outer cold closed cooling tower；6th, major cycle filter；7th, the first temperature sensor；8th, first pressure
Table；9th, first flow sensor；10th, second temperature sensor；11st, second pressure table；12nd, second flow sensor；13rd, the change of current
Valve heat generating component；14th, degassing tank；151st, first entrance pressure gauge；152nd, second entrance pressure gauge；16th, nitrogen cylinder；17th, buffer
Tank；18th, ion exchanger filter；19th, ion exchanger；20th, replenisher tank outlet filter；21st, small pump；22nd, replenisher tank.
Specific embodiment
Presently in connection with accompanying drawing, this utility model is described in further detail.These accompanying drawings are the schematic diagram of simplification,
Basic structure of the present utility model is only described in a schematic way, therefore it only shows the composition relevant with this utility model.
As shown in figure 1, this utility model provides a kind of double water distribution cooling system of direct-current transmission converter valve, include successively flowing
Amount handover module, three-way valve 4, outer cold closed cooling tower 5, major cycle filter 6, detection handover module, converter valve heat generating component
13rd, the connecting line of degassing tank 14 and each inter-module；Wherein three-way valve 4 one end connection traffic handover module, one end connects outer cold
Closed cooling tower 5, the other end connects outside on the connecting line between cold closed cooling tower 5 and major cycle filter 6, Ke Yijing
Really effectively adjust the flow entering interior circulation and outer cold closed cooling tower 5；
Flow switch module includes the first circulation module being connected in parallel and second circulation module, described first circulation module
Include first entrance pressure gauge 151, the first main circulation pump 1, first outlet pressure gauge 31 successively；Second circulation module includes successively
Second entrance pressure gauge 152, the second main circulation pump 2, second outlet pressure gauge 32；First main circulation pump 1 and the second main circulation pump 2
Two ends be equipped with valve；First main circulation pump 1 and the second main circulation pump 2 are variable frequency pump；
Described detection handover module includes first detection module and the second detection module being connected in parallel；Described first detection
Module includes the first temperature sensor, first pressure table and first flow sensor successively；Described second detection module wraps successively
Include second temperature sensor, second pressure table and second flow sensor；Described first detection module and the second detection module
Two ends are equipped with valve.
In a preference of the present utility model, the flow adjustment range of the first main circulation pump 1 is 0 ~ 35m3/ h, second
The flow adjustment range of main circulation pump 2 is 30 ~ 70m3/h.This device has tested successfully at present, and wins auspicious electric power certainly in Changzhou
The success of Dong Hua equipment company limited is continuous to be run 168 hours, it is possible to achieve the seamless wide scope of flow is adjusted.
When enabling first circulation module, the valve at the first main circulation pump 1 two ends is opened, the second main circulation pump 2 two ends
Valve closing；Meanwhile, the valve at first detection module two ends is opened, the valve closing at the second detection module two ends；When opening
During with second circulation module, the valve at the second main circulation pump 2 two ends is opened, the valve closing at the first main circulation pump 1 two ends；With this
Meanwhile, the valve at the second detection module two ends is opened, the valve closing at first detection module two ends.Due to the first main circulation pump 1
Different with the second main circulation pump 2 flow adjustable extent, real by way of first circulation module and the switching of second circulation module
Show wider flow adjustment range；If attempting to realize wider flow adjustment range only with a main circulation pump, pole has
Possibly the circulating pump meeting the requirements cannot be purchased, even if can purchase obtaining, its purchase cost and maintenance cost are also big
Exceed greatly this programme.
In a preference of the present utility model, the double water distribution cooling system of direct-current transmission converter valve is also sequentially provided with two
The ion exchanger 19 being arranged in parallel and ion exchanger filter 18；The porch of ion exchanger 19 and filter 6 and inspection
The connecting line surveyed between handover module connects；The outlet of ion exchanger filter 18 and degassing tank 14 and flow switch module
Between pipeline be connected.
In a preference of the present utility model, the exit of ion exchanger filter 18 be provided with surge tank 17 and
Nitrogen cylinder 16；The cooling medium flowing out from ion exchanger filter 18 is introduced into surge tank 17, then from surge tank 17 bottom
Flow out, enter detection handover module；The top of surge tank 17 is full of nitrogen, when in system, cooling medium becomes because temperature produces volume
During change, buffering tank top QI invigorating given automatically by nitrogen cylinder 16, to keep the pressure of pipeline and being full of of cooling medium.
In a preference of the present utility model, in the double water distribution cooling system of stream current transmission valve, it is additionally provided with replenisher tank
22 and small pump 21；When pressure surge relief tank 17 liquid level in system less than setting value, system can start small pump
21 automatic water supplements.
In a preference of the present utility model, described small pump exit is provided with accurate filter 20, Ke Yiyou
The ion of cooling medium in effect removing system, the long-term electrical conductivity maintaining cooling medium is kept low, thus ensureing system
System reliability service.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all this
Within the spirit of utility model and principle, any modification, equivalent substitution and improvement made etc., should be included in this utility model
Protection domain within.
Claims (8)
1. a kind of double water distribution cooling system of direct-current transmission converter valve it is characterised in that include successively flow switch module, three-way valve,
Cold closed cooling tower, major cycle filter, detection handover module, the company of converter valve heat generating component, degassing tank and each inter-module outward
Adapter road；Wherein said three-way valve one end connection traffic handover module, one end connects outer cold closed cooling tower, and the other end is connected to
Outward on the connecting line between cold closed cooling tower and major cycle filter；
Described flow switch module includes the first circulation module being connected in parallel and second circulation module, described first circulation module
Include first entrance pressure gauge, the first main circulation pump, first outlet pressure gauge successively；Described second circulation module includes successively
Two inlet pressure gauge, the second main circulation pump, second outlet pressure gauge；Described first main circulation pump and the two ends of the second main circulation pump
It is equipped with valve；Described first main circulation pump and the second main circulation pump are variable frequency pump, and the first main circulation pump and the second master follow
The flow adjustable extent of ring pump is different；
Described detection handover module includes first detection module and the second detection module being connected in parallel；Described first detection module
Include the first temperature sensor, first pressure table and first flow sensor successively；Described second detection module includes successively
Two temperature sensors, second pressure table and second flow sensor；Described first detection module and the two ends of the second detection module
It is equipped with valve.
2. the double water distribution cooling system of direct-current transmission converter valve according to claim 1 is it is characterised in that described first master follows
The flow adjustable extent of ring pump and the second main circulation pump partially overlaps.
3. the double water distribution cooling system of direct-current transmission converter valve according to claim 1 is it is characterised in that described first master follows
The bound difference of the flow adjustable extent intersection of ring pump and the second main circulation pump can less than the first main circulation pump flow
The 20% of range of accommodation bound difference；Or 20% less than the second main circulation pump flow adjustable extent bound difference.
4. the double water distribution cooling system of the direct-current transmission converter valve according to any one of claims 1 to 3 is it is characterised in that described
The double water distribution cooling system of direct-current transmission converter valve is also sequentially provided with ion exchanger and the ion exchanger that several are arranged in parallel
Filter；Connecting line between the porch of described ion exchanger and filter and detection handover module is connected；Described from
The outlet of sub- exchanger filter is connected with the pipeline between degassing tank and flow switch module.
5. the double water distribution cooling systems of direct-current transmission converter valve according to claim 4 are it is characterised in that described ion exchange
The exit of device filter is provided with surge tank and nitrogen cylinder；The cooling medium flowing out from ion exchanger filter is introduced into
Surge tank, then flow out from buffering pot bottom, enter detection handover module；The top of described surge tank is full of nitrogen.
6. the double water distribution cooling system of the direct-current transmission converter valve according to any one of claims 1 to 3 is it is characterised in that described
It is additionally provided with replenisher tank and small pump in the double water distribution cooling system of stream current transmission valve.
7. the double water distribution cooling system of direct-current transmission converter valve according to claim 6 is it is characterised in that described moisturizing pumps out
It is provided with accurate filter at mouthful.
8. the double water distribution cooling systems of direct-current transmission converter valve according to claim 4 are it is characterised in that described ion exchange
Device is provided with 1～4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620896958.8U CN205945498U (en) | 2016-08-17 | 2016-08-17 | Two cooling water system for water cooled generator that join in marriage of direct current transmission change of current valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620896958.8U CN205945498U (en) | 2016-08-17 | 2016-08-17 | Two cooling water system for water cooled generator that join in marriage of direct current transmission change of current valve |
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| Publication Number | Publication Date |
|---|---|
| CN205945498U true CN205945498U (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620896958.8U Active CN205945498U (en) | 2016-08-17 | 2016-08-17 | Two cooling water system for water cooled generator that join in marriage of direct current transmission change of current valve |
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| CN (1) | CN205945498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253635A (en) * | 2016-08-17 | 2016-12-21 | 常州博瑞电力自动化设备有限公司 | The double water distribution cooling system of a kind of direct-current transmission converter valve |
-
2016
- 2016-08-17 CN CN201620896958.8U patent/CN205945498U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253635A (en) * | 2016-08-17 | 2016-12-21 | 常州博瑞电力自动化设备有限公司 | The double water distribution cooling system of a kind of direct-current transmission converter valve |
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