CN206759898U - The hybrid outer cooling system and cooling system of a kind of converter valve - Google Patents
The hybrid outer cooling system and cooling system of a kind of converter valve Download PDFInfo
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- CN206759898U CN206759898U CN201720271551.0U CN201720271551U CN206759898U CN 206759898 U CN206759898 U CN 206759898U CN 201720271551 U CN201720271551 U CN 201720271551U CN 206759898 U CN206759898 U CN 206759898U
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- cooling system
- valve
- outer cooling
- chilling units
- water chilling
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Abstract
The utility model embodiment discloses the hybrid outer cooling system and cooling system of a kind of converter valve, it is related to technical field of direct current power transmission, to improve due to the continuous improvement of direct current transportation power, the shortcomings that causing single outer cooling system more distinct issues, so as to more effectively be radiated and be advantageous to engineering construction.The system includes：First outer cooling system and the second outer cooling system, wherein, the first outer cooling system is different with the type of the described second outer cooling system, and the second outer cooling system is handpiece Water Chilling Units.
Description
Technical field
The utility model is related to technical field of direct current power transmission, more particularly to a kind of hybrid outer cooling system of converter valve and
Cooling system.
Background technology
The generations of electricity by new energy such as wind energy, solar energy access power network and energy interconnection is an important class in future source of energy field
Topic, HVDC Transmission Technology are a kind of effective means for solving the problem.And converter valve is the nucleus equipment of DC transmission engineering.
Converter valve is during operation, its internal IGCT, damping capacitor, equalizing capacitance, damping resistance, equal piezoelectricity
The components such as resistance, saturable reactor, thyristor control unit can produce the core devices crystalline substance lock of substantial amounts of heat, especially converter valve
Pipe is temperature sensor, when temperature exceedes its junction temperature, will be damaged and causes direct current locking.Therefore need to configure a set of special
With cooling system to control the temperature of converter valve within allowed band, the cooling system includes internal cooling system and outer cooling system
Unite two parts, internal cooling system is the closed deionized water circulatory system, example, and structure is as shown in figure 1, relatively low interior of temperature
Cold water can take away the heat in converter valve when flowing through the radiator being in close contact with converter valve and heat up, the inner cold water stream after heating
It can be recycled in the heat abstractor of outer cooling system part after going out converter valve.
Outer cooling system generally cools down using closed cooling tower (example, structure is as shown in Figure 2) or air at present
Device (example, structure is as shown in Figure 3).Closed cooling tower is radiated using water evaporation, and cooling effectiveness is high, little power consumption, and occupation of land is small,
But its outer cold needs constantly evaporation expends substantial amounts of water, and can sewage effluent.Aerial cooler is dissipated using powerful fan
Heat, external condensation system do not need water consumption, it is not necessary to which moisturizing, water process etc. equipment, system is simpler, in the place of water shortage arid
It is especially suitable；But the floor space of fan is big, power consumption is big, noise is also big.With the continuous improvement of direct current transportation power level,
The loss of converter valve is consequently increased, and the caused heat in converter valve also accordingly increases, with the cooling system that converter valve is supporting
Capacity also constantly lifted.So, can be more when direct current transportation power further improves, the shortcomings that the above two type of cooling
Add protrusion, sometimes as the restraining factors of engineering construction.
Utility model content
Embodiment of the present utility model provides a kind of hybrid outer cooling system and cooling system of converter valve, to improve
Due to the continuous improvement of direct current transportation power, the shortcomings that causing single outer cooling system more distinct issues, so as to enter
Go and more effectively radiate and be advantageous to engineering construction.
To reach above-mentioned purpose, embodiment of the present utility model adopts the following technical scheme that：
In a first aspect, the utility model embodiment provides a kind of hybrid outer cooling system of converter valve, the mixing
The outer cooling system of formula includes：First outer cooling system and the second outer cooling system, wherein, the first outer cooling system and described
The type of second outer cooling system is different, and the second outer cooling system is handpiece Water Chilling Units.
Optionally, the described first outer cooling system is aerial cooler.
Optionally, the described first outer cooling system is closed cooling tower.
Optionally, the closed cooling tower includes spray pond, and the handpiece Water Chilling Units include evaporator；The handpiece Water Chilling Units
Evaporator positioned at it is described spray pond in.
Optionally, the described first outer cooling system and handpiece Water Chilling Units pass through placed in series.Optionally, the system is also wrapped
Include：First valve and the second valve, first valve pass through placed in series, first valve and institute with the handpiece Water Chilling Units
State handpiece Water Chilling Units series connection after it is in parallel by pipeline with second valve, first valve and the second valve for control it is interior cold
Whether water is exchanged heat by handpiece Water Chilling Units.
Optionally, the described first outer cooling system and handpiece Water Chilling Units are in parallel by pipeline.Optionally, the system also includes
Valve, with the handpiece Water Chilling Units by placed in series, the valve is used to control whether inner cold water passes through cooling-water machine the valve
Group is exchanged heat.
Optionally, the handpiece Water Chilling Units include：
Compressor, the compressor have exhaust outlet and gas returning port, and the gas returning port is connected with the refrigerant outlet；
Condenser, the entrance of the condenser are connected with the exhaust outlet；
Evaporator, the evaporator have refrigerant inlet and refrigerant outlet, the refrigerant outlet and the return-air
Mouth is connected；
First throttle device, the outlet of the first throttle device are connected with the refrigerant inlet, the first throttle
The entrance of device is connected with the outlet of the condenser；
Control device, the control device are connected with the compressor and the first throttle device to control the compression
The working condition of machine and the first throttle device.
Second aspect, the utility model embodiment provide a kind of cooling system of converter valve, including：Described in first aspect
Outer cooling system and internal cooling system, the internal cooling system is connected with the converter valve by pipeline, the outer cooling system
Unite for being cooled down to the inner cold water flowed out from the internal cooling system.
The utility model embodiment provide the hybrid outer cooling system and cooling system of a kind of converter valve by using
The mixing cooling mode of first outer cooling system and handpiece Water Chilling Units, improves due to the continuous improvement of direct current transportation power, causes
The shortcomings that single outer cooling system more distinct issues, so as to more effectively radiated and be advantageous to engineering reality
Apply.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, embodiment or prior art will be retouched below
The required accompanying drawing used is briefly described in stating, it should be apparent that, drawings in the following description are only the utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of internal cooling system structure chart for converter valve that prior art provides；
Fig. 2 is a kind of outer cooling system structure figure of closed cooling tower for converter valve that prior art provides；
Fig. 3 is a kind of outer cooling system structure figure of aerial cooler for converter valve that prior art provides；
Fig. 4 is a kind of outer cooling system structure figure of handpiece Water Chilling Units for converter valve that the utility model embodiment provides；
Fig. 5 is one of structure chart of hybrid outer cooling system of converter valve that the utility model embodiment provides；
Fig. 6 is the two of the structure chart of the hybrid outer cooling system for the converter valve that the utility model embodiment provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
For the ease of clearly describing the technical scheme of the utility model embodiment, in embodiment of the present utility model, art
Language " first ", " second " are only used for describing purpose, and it is not intended that instruction or implying relative importance or implicit indicating institute
The quantity of the technical characteristic of instruction.Thus, " first " is defined, one can be expressed or be implicitly included to the feature of " second "
Or more this feature.In description of the present utility model, unless otherwise indicated, " multiple " be meant that two or two with
On.
Embodiment one
The utility model embodiment provides a kind of hybrid outer cooling system of converter valve, for direct-current transmission converter
The cooling of valve.The hybrid outer cooling system includes：First outer cooling system and the second outer cooling system, wherein, it is cold outside first
But system is different with the type of the second outer cooling system, and the second outer cooling system is handpiece Water Chilling Units.
The species of handpiece Water Chilling Units has a variety of, and optionally, with reference to shown in figure 4, handpiece Water Chilling Units include：Compressor 1, condenser 2,
Evaporator 3, first throttle device 4, control device (being not drawn into figure), wherein compressor 1 are preferably centrifugal magnetic suspension pressure
Contracting machine, compressor 1 have exhaust outlet a and gas returning port b.Evaporator 3 is preferably falling film type case tube heat exchanger, and evaporator 3 has
Refrigerant inlet d and refrigerant outlet e.First throttle device 4 is preferably electric expansion valve.The entrance of condenser 2 and exhaust
Mouth a is connected, and refrigerant outlet e is connected with gas returning port b, and the outlet of first throttle device 4 is connected with refrigerant inlet d, first segment
The entrance of stream device 4 is connected with the outlet of condenser 2.Control device is connected with compressor 1 and first throttle device 4, control dress
The opening and closing of compressor 1 can be controlled by putting, and control device can control the aperture of first throttle device 4.
As shown in figure 4, the handpiece Water Chilling Units also include liquid level sensor 5 and cooling flowing path 6, liquid level sensor 5 is used to detect
Liquid level in evaporator 3, liquid level sensor 5 are connected with control device, and control device is according to the testing result control of liquid level sensor 5
The aperture of first throttle device 4 processed.Cooling flowing path 6 is used to cool down the motor of compressor 1, is in series with cooling flowing path 6
Second throttling device and control valve, one end of cooling flowing path 6 are connected with the second end of condenser 2.Specifically, second throttling device
It can be located in compressor 1 with control valve.Alternatively, second throttling device can be capillary, and control valve can be magnetic valve.
When handpiece Water Chilling Units are run, the gaseous refrigerant of low-temp low-pressure enters compressor 1 from gas returning port b, is compressed by compressor 1
The gaseous refrigerant of HTHP is formed afterwards, and then refrigerant, which is entered back into condenser 2, is cooled to cryogenic high pressure liquid, low
Warm high pressure liquid refrigerant becomes low-temp low-pressure gas liquid mixture, last refrigerant after the reducing pressure by regulating flow of first throttle device 4
Enter after evaporator 3 absorbs heat and become the refrigerant gas of low-temp low-pressure again.Liquid level sensor 5 detects the liquid in evaporator 3
Position, control device control the aperture of first throttle device 4 to control by first throttle according to the testing result of liquid level sensor 5
The amount for the refrigerant that device 4 is entered in evaporator 3, so as to the controlling party by combining liquid level sensor 5 and electric expansion valve
Formula, ensure the refrigerant amount of handpiece Water Chilling Units with more accurate Liquid level, it is ensured that the refrigerant level in evaporator 3 is relatively low and keeps away
Exempt from the absorbing gas belt liquid of compressor 1, extend the service life of handpiece Water Chilling Units.Of course, it should be understood that can also be by detecting cold water
The mode such as the exhaust of unit or the degree of superheat of air-breathing controls the amount of the refrigerant entered in evaporator 3.
When control valve is in open mode, the part of refrigerant discharged from condenser 2 is entered in cooling flowing path 6,
The refrigerant entered in cooling flowing path 6 becomes low-temp low-pressure gas liquid mixture after the reducing pressure by regulating flow of the 3rd throttling arrangement,
The refrigerant discharged from cooling flowing path 6 can cool down to motor, and to reduce the temperature of motor, that improves motor uses the longevity
Life.
According to above-mentioned handpiece Water Chilling Units, the performance and comfort of handpiece Water Chilling Units can be improved, at the same can use compared with
Few refrigerant obtains the preferable coefficient of heat transfer, further improves unit performance, while the refrigerant adjustable range of handpiece Water Chilling Units
Extensively, unit operation requires regulation smooth steady.
In the utility model embodiment, handpiece Water Chilling Units species or structure are not limited to the handpiece Water Chilling Units of foregoing description, can
To be any handpiece Water Chilling Units of the prior art for meeting the application requirement in the utility model embodiment.
Optionally, the first outer cooling system is aerial cooler.Aerial cooler is come pair by using powerful fan
It is sent to what outdoor inner cold water was cooled.The species and structure of aerial cooler have it is a variety of, specifically with reference to prior art, this
Place is not limited.In the utility model embodiment, inner cold water refers to the water flowed in internal cooling system.It is cold using air
But device mixes the mode of cooling with handpiece Water Chilling Units, and floor space caused by can improving the scale of increase aerial cooler is big, makes an uproar
The problems such as sound is big.
Optionally, the first outer cooling system is closed cooling tower.The species and structure of closed cooling tower have it is a variety of, specifically
With reference to prior art, it is not limited herein., first can be notable by the way of closed cooling tower mixes cooling with handpiece Water Chilling Units
The cooling water evaporation amount of external condensation system is reduced, evaporation water consumption saves more the capacity pass in direct ratio of few and handpiece Water Chilling Units configuration
System；Secondly the quantity of wastewater effluent of cooling system can be reduced, reduces the pollution to environment, the expense and workload of waste water control
It can reduce；The inner cold water temperature after handpiece Water Chilling Units pre-cool has certain reduction in addition, that is, flows in cooling tower heat exchange coil
Water temperature it is relatively low, shower water pool inner water temperature also has and reduced to a certain degree, and external condensation system scale formation can obtain certain alleviation.
When the first outer cooling system is closed cooling tower, optionally, closed cooling tower includes spray pond, handpiece Water Chilling Units
Including evaporator；The evaporator of handpiece Water Chilling Units is in spray pond.The water that handpiece Water Chilling Units are used in chilling spray pond, with drop
The temperature of low shower water.The spray coolant-temperature gage sprayed so after handpiece Water Chilling Units pre-cool in pond has certain reduction, that is, flows
Relatively low to the water temperature in cooling tower heat exchange coil, external condensation system scale formation can obtain certain alleviation.It should be noted that spray
Pond can also be spray tank, many structures in the utility model, have multiple titles in the prior art, its essence
Equally, will not enumerate herein.
Optionally, with reference to shown in figure 5 (internal cooling system omits in figure), the first outer cooling system and handpiece Water Chilling Units pass through pipe
Connect in road.Preferably, the system also includes：First valve and the second valve, the first valve and handpiece Water Chilling Units by placed in series,
In parallel by pipeline with the second valve after first valve and handpiece Water Chilling Units series connection, the first valve and the second valve are interior cold for controlling
Whether water is exchanged heat by handpiece Water Chilling Units.When opening the first valve, when closing the second valve, inner cold water flows out from inner cold system
Inner cold system is returned to after being exchanged heat by the first outer cooling system；When closing the first valve, when opening the second valve, inner cold water is from interior
After cooling system outflow inner cold system is returned to through the second outer cooling system after the first outer cooling system heat exchange again.
Optionally, with reference to shown in figure 6 (internal cooling system omits in figure), the first outer cooling system and handpiece Water Chilling Units pass through pipe
Road is in parallel.Preferably, the system also includes valve, and with handpiece Water Chilling Units by placed in series, valve is used to control inner cold water valve
Whether exchanged heat by handpiece Water Chilling Units.I.e. when the valve is open, inner cold water from inner cold system outflow after through the first outer cooling system
Inner cold system is returned to after system heat exchange；When valve closes, inner cold water is divided into two-way after inner cold system outflow, all the way into first
Outer cooling system, all the way into the second outer cooling system, the inner cold water after two-way is cooled returns to after bringing together again
Cooling system.
The utility model embodiment provides a kind of hybrid outer cooling system of converter valve, is cooled down outside by using first
The mixing cooling mode of system and handpiece Water Chilling Units, is improved due to the continuous improvement of direct current transportation power, causes single outer cooling
The shortcomings that system more distinct issues, so as to more effectively be radiated and be advantageous to engineering construction.
Embodiment two
The utility model embodiment provides a kind of cooling system of converter valve, including：Outer cooling described in embodiment one
System and internal cooling system, internal cooling system are connected with converter valve by pipeline, specifically refer to prior art, outer cooling system
For being cooled down to the inner cold water flowed out from internal cooling system, with specific reference to above-described embodiment, will not be repeated here.
The utility model embodiment provides a kind of cooling system of converter valve, by using the first outer cooling system and cold
The mixing cooling mode of water dispenser group, is improved due to the continuous improvement of direct current transportation power, causes lacking for single outer cooling system
Point more distinct issues, so as to more effectively be radiated and be advantageous to engineering construction.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the utility model technology
The spirit and scope of scheme.Therefore, the scope of protection of the utility model should be based on the protection scope of the described claims.
Claims (10)
1. the hybrid outer cooling system of a kind of converter valve, it is characterised in that the hybrid outer cooling system includes：Outside first
Cooling system and the second outer cooling system, wherein, the type of the first outer cooling system and the second outer cooling system is not
Together, the described second outer cooling system is handpiece Water Chilling Units.
2. system according to claim 1, it is characterised in that the first outer cooling system is aerial cooler.
3. system according to claim 1, it is characterised in that the first outer cooling system is closed cooling tower.
4. system according to claim 3, it is characterised in that the closed cooling tower includes spray pond, the cold water
Unit includes evaporator；The evaporator of the handpiece Water Chilling Units is in the spray pond.
5. system according to claim 1, it is characterised in that the first outer cooling system and handpiece Water Chilling Units pass through pipeline
Series connection.
6. system according to claim 5, it is characterised in that the system also includes：First valve and the second valve, institute
The first valve and the handpiece Water Chilling Units are stated by placed in series, with described the after first valve and handpiece Water Chilling Units series connection
Two valves are in parallel by pipeline, and first valve and the second valve are used to control whether inner cold water is changed by handpiece Water Chilling Units
Heat.
7. system according to claim 1, it is characterised in that the first outer cooling system and handpiece Water Chilling Units pass through pipeline
It is in parallel.
8. system according to claim 7, it is characterised in that the system also includes valve, the valve with it is described cold
By placed in series, the valve is used to control whether inner cold water is exchanged heat by handpiece Water Chilling Units water dispenser group.
9. according to the system described in claim any one of 1-8, it is characterised in that the handpiece Water Chilling Units include：
Compressor, the compressor have exhaust outlet and gas returning port, and the gas returning port is connected with refrigerant outlet；
Condenser, the entrance of the condenser are connected with the exhaust outlet；
Evaporator, the evaporator have refrigerant inlet and refrigerant outlet, the refrigerant outlet and the gas returning port phase
Even；
First throttle device, the outlet of the first throttle device are connected with the refrigerant inlet, the first throttle device
Entrance be connected with the outlet of the condenser；
Control device, the control device be connected with the compressor and the first throttle device with control the compressor and
The working condition of the first throttle device.
A kind of 10. cooling system of converter valve, it is characterised in that including：Outer cooling system described in claim any one of 1-9
And internal cooling system, the internal cooling system are connected with the converter valve by pipeline, the outer cooling system is used for from institute
The inner cold water for stating internal cooling system outflow is cooled down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720271551.0U CN206759898U (en) | 2017-03-20 | 2017-03-20 | The hybrid outer cooling system and cooling system of a kind of converter valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720271551.0U CN206759898U (en) | 2017-03-20 | 2017-03-20 | The hybrid outer cooling system and cooling system of a kind of converter valve |
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| Publication Number | Publication Date |
|---|---|
| CN206759898U true CN206759898U (en) | 2017-12-15 |
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ID=60610621
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720271551.0U Active CN206759898U (en) | 2017-03-20 | 2017-03-20 | The hybrid outer cooling system and cooling system of a kind of converter valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106817885A (en) * | 2017-03-20 | 2017-06-09 | 南方电网科学研究院有限责任公司 | The hybrid outer cooling system and cooling system of a kind of converter valve |
-
2017
- 2017-03-20 CN CN201720271551.0U patent/CN206759898U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106817885A (en) * | 2017-03-20 | 2017-06-09 | 南方电网科学研究院有限责任公司 | The hybrid outer cooling system and cooling system of a kind of converter valve |
| CN106817885B (en) * | 2017-03-20 | 2023-12-19 | 南方电网科学研究院有限责任公司 | Mixed external cooling system and cooling system of converter valve |
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