CN110060844A - Dry-type transformer refrigeration system and dry-type transformer system - Google Patents
Dry-type transformer refrigeration system and dry-type transformer system Download PDFInfo
- Publication number
- CN110060844A CN110060844A CN201910275687.2A CN201910275687A CN110060844A CN 110060844 A CN110060844 A CN 110060844A CN 201910275687 A CN201910275687 A CN 201910275687A CN 110060844 A CN110060844 A CN 110060844A
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- CN
- China
- Prior art keywords
- heat
- dry
- type transformer
- exchanger rig
- refrigeration system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/16—Water cooling
Abstract
The invention discloses dry-type transformer refrigeration system and dry-type transformer systems, including coolant refrigeration system and the water-cooling system being connect with dry-type transformer, the water-cooling system includes the first heat-exchanger rig, the coolant refrigeration system is connect with the first heat-exchanger rig, so that the thermal medium in the refrigerant of coolant refrigeration system and the first heat-exchanger rig carries out heat exchange；By heat exchange of the refrigerant in the first heat-exchanger rig, can quickly cool down to the cooling water of dry-type transformer.
Description
Technical field
The present invention relates to dry-type transformer field, in particular to a kind of dry-type transformer refrigeration system and dry-type transformer system
System.
Background technique
Offshore wind farm installs air-water cooling device additional in dry-type transformer box house with water cooling dry-type transformer at present, leads to
Closed waterway circulating is crossed to external water-air cooler, the heat in transformer-cabinet is shed, solves high protection etc.
Heat dissipation problem under the conditions of grade；And in order to reduce offshore wind farm cost of electricity-generating, preferably land ring is different from using marine environment
Border (landform height in land rises and falls, and slows down effect to wind speed generation), wind speed is high, the small climatic characteristic of windage, larger capacity
Generating set, the blower of larger diameter also promote operation therewith, and transformer capacity is also increasing, and transformer loss is also increasingly
Greatly, effective heat dissipating method also becomes more and more important.
Existing offshore wind farm on water cooling dry-type transformer have cooling water outlet and cooling water intake, cooling water
It is discharged to after dry-type transformer cooling from cooling water outlet, into water-air cooler, is reduced by external cooling fan
The temperature of water-air cooler, is input in dry-type transformer using cooling water intake and cools down, and thus recycles, but
It is that this mode makes the temperature decline of cooling water in water-air cooler unobvious, cooling water intake temperature is caused to compare ring
High 10 DEG C of border temperature or so, temperature is high in cabinet, and in this case, transformer will increase to reduce the intracorporal temperature of case
Heat dissipation area on transformer-cabinet causes volume of transformer big, and occupancy tower area is big, and cost is high.
Summary of the invention
It is an object of the invention at least solve one of the technical problems existing in the prior art, a kind of dry type transformation is provided
Device refrigeration system, the temperature decline for the cooling water being able to solve in dry-type transformer refrigeration system is unobvious to lead to dry-type transformer
The problem that temperature is high in cabinet, volume of transformer is big.
A kind of embodiment of the invention solves technical solution used by its technical problem: dry-type transformer refrigeration system
System, comprising:
The water-cooling system connecting with dry-type transformer, the water-cooling system include the first heat-exchanger rig；
Coolant refrigeration system, the coolant refrigeration system is connect with the first heat-exchanger rig, so that coolant refrigeration system is cold
Thermal medium in matchmaker and the first heat-exchanger rig carries out heat exchange.
The coolant refrigeration system includes control device, compression set and the second heat-exchanger rig, control device control pressure
Compression apparatus acts so that refrigerant can pass sequentially through compression set, the second heat-exchanger rig and the first heat-exchanger rig.
Further, further include refrigeration expansion valve and high-pressure reservoir, the first feed liquor is provided on the high-pressure reservoir
Mouth and liquid outlet, the first inlet are connected to the second heat-exchanger rig, and liquid outlet is connected to one end of refrigeration expansion valve, are freezed swollen
The other end of swollen valve is connected to the first heat-exchanger rig.
Further, further include the first reversal valve, the second reversal valve and heating expansion valve, set on first reversal valve
It is equipped with first port, second port, third port and the 4th port, the first commutation mouth, second are provided on the second reversal valve
Commutate mouth and third commutation mouth, is provided with the first air inlet and the first gas outlet, the first air inlet and first on compression set
Port connection, second port are connected to the first heat-exchanger rig, and third port is connected to the second heat-exchanger rig, and the first air inlet passes through
4th port is connected to the first gas outlet, and the first commutation mouth is connected to high-pressure reservoir liquid outlet, and the second commutation mouth and refrigeration are swollen
One end of swollen valve is connected to, and third commutation mouth is connected to the one end for heating expansion valve, heats the other end and the second heat exchange of expansion valve
Device connection, the first inlet of high-pressure reservoir is connected to the first heat-exchanger rig, the heating expansion valve and high-pressure reservoir the
Between one inlet, check valve, the control dress are provided between the first inlet of the first heat-exchanger rig and high-pressure reservoir
Set the flow direction that can control the first reversal valve and the second commutation valve events to change refrigerant.
Device for drying and filtering is provided between the high-pressure reservoir liquid outlet and the first commutation mouth of the second reversal valve.
Economizer is provided between the device for drying and filtering and the first commutation mouth of the second reversal valve.
Separating tube is provided between the heating expansion valve and the second heat-exchanger rig.
Further, further include vapour liquid separator, the second air inlet and the second outlet are provided on the vapour liquid separator
Mouthful, the second air inlet is connected to the fourth port, and the second gas outlet is connected to first air inlet.
Dry-type transformer system, including dry-type transformer and the dry-type transformer refrigeration system, the dry-type transformer
On be provided with the second coolant inlet and the second cooling liquid outlet, there is the first coolant inlet and the on the first heat-exchanger rig
One cooling liquid outlet, the second cooling liquid outlet are connected to the first coolant inlet, and the second coolant inlet goes out with the first coolant liquid
Mouth connection.
It further, further include pumping plant, the pumping station layout exchanges heat in the second cooling liquid outlet of dry-type transformer and first
Between first coolant inlet of device.
Beneficial effects of the present invention: the present invention includes coolant refrigeration system and the water cooling system connecting with dry-type transformer
System, the water-cooling system include the first heat-exchanger rig, and the coolant refrigeration system is connect with the first heat-exchanger rig, so that refrigerant system
Thermal medium in the refrigerant of cooling system and the first heat-exchanger rig carries out heat exchange；Pass through heat of the refrigerant in the first heat-exchanger rig
Exchange, can quickly cool down to the cooling water of dry-type transformer.
Detailed description of the invention
The present invention is further explained with reference to the accompanying drawings and examples；
Fig. 1 is the structural schematic diagram of dry-type transformer of embodiment of the present invention system；
Fig. 2 is the structural schematic diagram of coolant refrigeration of embodiment of the present invention system.
Specific embodiment
This part will be described in specific embodiments of the present invention, and the preferred embodiments of the invention is shown in the accompanying drawings, attached
The effect of figure be with figure remark additionally book word segment description, enable a person to intuitively, visually understand of the invention
Each technical characteristic and overall technical architecture, but it should not be understood as limiting the scope of the invention.
In the description of the present invention, it is to be understood that, be related to orientation description, for example, above and below, front, rear, left and right etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore be not considered as limiting the invention.
In the description of the present invention, several to be meant that one or more, it is multiple to be meant that two or more, be greater than,
Be less than, more than etc. be interpreted as not including this number, it is above, following, within etc. be interpreted as including this number.If there is being described to first,
Second is only intended to for the purpose of distinguishing technical characteristic, is not understood to indicate or imply relative importance or implicitly indicates institute
The quantity of the technical characteristic of instruction or the precedence relationship for implicitly indicating indicated technical characteristic.
In description of the invention, unless otherwise restricted clearly, the words such as setting, installation, connection be shall be understood in a broad sense, institute
Above-mentioned word in the present invention specific can rationally be determined with the particular content of combination technology scheme by belonging to technical field technical staff
Meaning.
Referring to Fig.1-2, dry-type transformer refrigeration system, comprising:
The water-cooling system 16 connecting with dry-type transformer 13, the water-cooling system 16 include the first heat-exchanger rig 2；
Coolant refrigeration system 17, the coolant refrigeration system 1 is connect with the first heat-exchanger rig 2, so that coolant refrigeration system 1
Refrigerant and the first heat-exchanger rig 2 in thermal medium carry out heat exchange.
The coolant refrigeration system 17 includes control device, compression set 1 and the second heat-exchanger rig 3, control device control
The movement of compression set 1 processed is so that refrigerant can pass sequentially through compression set 1, the second heat-exchanger rig 3 and the first heat-exchanger rig 2.
In one embodiment of the invention, the control device is realized by controlling the working condition of compression set 1
Circulation of the refrigerant in coolant refrigeration system, refrigerant carry out heat exchange in the first heat-exchanger rig 2 and the second heat-exchanger rig 3,
Realize that the coolant liquid that quickly dry-type transformer 13 is discharged cools down, it is ensured that recycled again into the coolant liquid temperature in dry-type transformer 13
Degree will not be too high, and dry-type transformer 13 casees intracorporal temperature in the reasonable scope, are conducive to the volume for reducing dry-type transformer 13.
Preferably, further including refrigeration expansion valve 5 and high-pressure reservoir 7, the high pressure in one embodiment of the present of invention
The first inlet and liquid outlet are provided on liquid storage device 7, the first inlet is connected to the second heat-exchanger rig 3, liquid outlet and system
One end of cold expansion valve 5 is connected to, and the other end of refrigeration expansion valve 5 is connected to the first heat-exchanger rig 2.
High pressure, low temperature refrigerant of the storage by the cooling of the second heat-exchanger rig 3, high-pressure reservoir 7 in the high-pressure reservoir 7
Interior refrigerant becomes the refrigerant of low temperature, low pressure after the decompression of refrigeration expansion valve 5.Enter in the first heat-exchanger rig 2 later
The coolant liquid heat that dry-type transformer 13 is discharged is absorbed, evaporation becomes gaseous state, takes away the heat of coolant liquid, play reduction coolant liquid
The purpose of temperature.
Preferably, further including that the first reversal valve 4, the second reversal valve 6 and heating are swollen in one embodiment of the present of invention
Swollen valve 8 is provided with first port, second port, third port and the 4th port, the second commutation on first reversal valve 4
The first commutation mouth, the second commutation mouth and third commutation mouth are provided on valve 6, be provided on compression set 1 first air inlet and
First gas outlet, the first air inlet are connected to first port, and second port is connected to the first heat-exchanger rig 2, third port and the
The connection of two heat-exchanger rigs 3, the first air inlet are connected to by the 4th port with the first gas outlet, the first commutation mouth and high-pressure reservoir
The connection of 7 liquid outlets, the second commutation mouth are connected to one end of refrigeration expansion valve 5, and third commutation mouth and the one end for heating expansion valve 8 connect
Logical, the other end of heating expansion valve 8 is connected to the second heat-exchanger rig 3,7 first inlet of high-pressure reservoir and the first heat-exchanger rig
2 connections, between 7 first inlet of the heating expansion valve 8 and high-pressure reservoir, the first heat-exchanger rig 2 and high-pressure reservoir 7 the
Check valve 10 is provided between one inlet, the control device can control the first reversal valve 4 and the movement of the second reversal valve 6
To change refrigerant flow direction, so that cooling system has refrigeration mode and heating mode, the control device can be single by control
The direction for realizing that refrigerant under heating mode or refrigeration mode enters high-pressure reservoir 7 is opened with shutdown to valve 10,
First reversal valve 4 is preferably a four-way valve, and four-way valve is respectively communicated with the first heat-exchanger rig 2, compression set 1 the
One gas outlet, 2 first gas outlet of compression set and the second heat-exchanger rig 3, control device pass through the control each valve of four-way valve
On-off to change the loop direction of refrigerant；Second reversal valve 6 is respectively communicated with refrigeration expansion valve 5, high-pressure reservoir 7 and system
Thermal expansion valve 8, control device can control the on-off of each valve of the second reversal valve 6 to change the direction of refrigerant circulation.
In cooling mode, refrigerant becomes the state of high temperature and pressure after the compression of compression set 1, after four-way valve
The second heat-exchanger rig 3 is reached, becomes the state of cryogenic high pressure after the cooling of the second heat-exchanger rig 3, into high-pressure reservoir 7
Interior storage, then reaches refrigeration expansion valve 5 by the second reversal valve 6, and the refrigerant of cryogenic high pressure drops in refrigeration expansion valve 5
Pressure makes refrigerant become low temperature, becomes high-temperature low-pressure subsequently into the heat for absorbing coolant liquid in the first heat-exchanger rig 2
Refrigerant, finally from 1 first air inlet of compression set return to compression set 1 by four-way valve, so recycle.
In a heating mode, refrigerant becomes the state of high temperature and pressure after the compression of compression set 1, after four-way valve
The first heat-exchanger rig 2 is reached, heat is discharged in the first heat-exchanger rig 2 and is heated to coolant liquid, the state of low-temp low-pressure is become, is passed through
Reach the second reversal valve 6 after crossing high-pressure reservoir 7, then reach heating expansion valve 8, through heating expansion valve 8 decompression after at
Become gaseous state to evaporate in the second heat-exchanger rig 3, eventually pass back to compression set 1, so recycles.
Some areas in winter when temperature it is lower, the coolant liquid in dry-type transformer can freeze solidification, therefore heating is added
Mode is first heated to coolant liquid, waits cooling liquids to be reconverted into refrigeration mode after liquid, the cooling being discharged to dry-type transformer
Liquid cooling.
Device for drying and filtering 11 is provided between 7 liquid outlet of high-pressure reservoir and the first commutation mouth of the second reversal valve 6；
The device for drying and filtering 11 is used to filter out the moisture in refrigerant to the dry filter of refrigerant, so that refrigerant is in the first heat exchange dress
It sets 2 or the second state transfer efficiency in heat-exchanger rig 3 is higher, conversion effect is best.
Economizer 15 is provided between the device for drying and filtering 11 and the first commutation mouth of the second reversal valve 6；The economy
Device 15 can be improved the working efficiency of compression set 1, improve refrigerant circulation efficiency.
Separating tube 9 is provided between the heating expansion valve 8 and the second heat-exchanger rig 3；Separating tube 9 has several tiny
Branched pipe is conducive to refrigerant heating in the second heat-exchanger rig 3 again after the pressurization by heating expansion valve 8, makes heating speed
Faster.
Further, further include vapour liquid separator 12, be provided with the second air inlet and second on the vapour liquid separator 12
Gas outlet, the second air inlet is connected to the fourth port, and the second gas outlet is connected to first air inlet；The vapour-liquid point
It is used to separate the gas and liquid in refrigerant from device 12, for recycling again, liquid then emits gas.
Referring to Fig.1, dry-type transformer system, including done described in dry-type transformer 13 and the dry-type transformer refrigeration system
It is provided with the second coolant inlet and the second cooling liquid outlet on formula transformer 13, there is the first cooling on the first heat-exchanger rig 2
Liquid entrance and the first cooling liquid outlet, the second cooling liquid outlet are connected to the first coolant inlet, the second coolant inlet with
The connection of first cooling liquid outlet.
It further, further include pumping plant 14, the pumping plant 14 setting is in 13 second cooling liquid outlet of dry-type transformer and the
Between first coolant inlet of one heat-exchanger rig 2.
The embodiment of the present invention is explained in detail above in conjunction with attached drawing, but the present invention is not limited to the above embodiments,
The technical field those of ordinary skill within the scope of knowledge, can also make without departing from the purpose of the present invention
Various change out.
Claims (10)
1. dry-type transformer refrigeration system characterized by comprising
The water-cooling system (16) connecting with dry-type transformer (13), the water-cooling system (16) include the first heat-exchanger rig (2)；
Coolant refrigeration system (17), the coolant refrigeration system (17) connect with the first heat-exchanger rig (2), so that coolant refrigeration system
Thermal medium in the refrigerant and the first heat-exchanger rig (2) of system (17) carries out heat exchange.
2. dry-type transformer refrigeration system according to claim 1, it is characterised in that: coolant refrigeration system (17) packet
Control device, compression set (1) and the second heat-exchanger rig (3) are included, control device controls compression set (1) movement so that refrigerant
Compression set (1), the second heat-exchanger rig (3) and the first heat-exchanger rig (2) can be passed sequentially through.
3. dry-type transformer refrigeration system according to claim 2, it is characterised in that: further include refrigeration expansion valve (5) and
High-pressure reservoir (7) is provided with the first inlet and liquid outlet, the first inlet and second on the high-pressure reservoir (7)
Heat-exchanger rig (3) connection, liquid outlet are connected to the one end of refrigeration expansion valve (5), and the other end of refrigeration expansion valve (5) is changed with first
Thermal (2) connection.
4. dry-type transformer refrigeration system according to claim 3, it is characterised in that: further include the first reversal valve (4),
Two reversal valves (6) and heating expansion valve (8), are provided with first port, second port, third on first reversal valve (4)
Port and the 4th port are provided with the first commutation mouth, the second commutation mouth and third commutation mouth, pressure on the second reversal valve (6)
The first air inlet and the first gas outlet are provided on compression apparatus (1), the first air inlet is connected to first port, second port and the
One heat-exchanger rig (2) connection, third port are connected to the second heat-exchanger rig (3), and the first air inlet passes through the 4th port and first
Gas outlet connection, the first commutation mouth be connected tos with high-pressure reservoir (7) liquid outlet, and second commutates the one of mouth and refrigeration expansion valve (5)
End connection, third commutation mouth are connected to the one end for heating expansion valve (8), and the other end and the second heat exchange for heating expansion valve (8) fill
(3) connection is set, (7) first inlet of high-pressure reservoir is connected to the first heat-exchanger rig (2), the heating expansion valve (8) and height
It is respectively provided between pressure (7) first inlet of liquid storage device, between (7) first inlet of the first heat-exchanger rig (2) and high-pressure reservoir
Have check valve (10), the control device can control the first reversal valve (4) and the second reversal valve (6) movement to change refrigerant stream
To.
5. dry-type transformer refrigeration system according to claim 4, it is characterised in that: the high-pressure reservoir (7) goes out liquid
Device for drying and filtering (11) are provided between mouth and the first commutation mouth of the second reversal valve (6).
6. dry-type transformer refrigeration system according to claim 5, it is characterised in that: the device for drying and filtering (11) and the
Economizer (15) are provided between first commutation mouth of two reversal valves (6).
7. dry-type transformer refrigeration system according to claim 4, it is characterised in that: the heating expansion valve (8) and the
Separating tube (9) are provided between two heat-exchanger rigs (3).
8. dry-type transformer refrigeration system according to claim 4, it is characterised in that: it further include vapour liquid separator (12),
The second air inlet and the second gas outlet are provided on the vapour liquid separator (12), the second air inlet and the 4th port connect
Logical, the second gas outlet is connected to first air inlet.
9. dry-type transformer system, it is characterised in that: any described dry including dry-type transformer (13) and claim 1-8
Interferometric transformer cooling system is provided with the second coolant inlet and the second cooling liquid outlet on the dry-type transformer (13),
There is the first coolant inlet and the first cooling liquid outlet, the second cooling liquid outlet and first cold on first heat-exchanger rig (2)
But liquid entrance is connected to, and the second coolant inlet is connected to the first cooling liquid outlet.
10. dry-type transformer system according to claim 9, it is characterised in that: further include pumping plant (14), the pumping plant
(14) it is arranged between (13) second cooling liquid outlet of dry-type transformer and the first coolant inlet of the first heat-exchanger rig (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910275687.2A CN110060844A (en) | 2019-04-08 | 2019-04-08 | Dry-type transformer refrigeration system and dry-type transformer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910275687.2A CN110060844A (en) | 2019-04-08 | 2019-04-08 | Dry-type transformer refrigeration system and dry-type transformer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110060844A true CN110060844A (en) | 2019-07-26 |
Family
ID=67318492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910275687.2A Pending CN110060844A (en) | 2019-04-08 | 2019-04-08 | Dry-type transformer refrigeration system and dry-type transformer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110060844A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2615599Y (en) * | 2003-02-14 | 2004-05-12 | 清华同方人工环境有限公司 | Low-temperature air-cooling heat pump machine set |
| CN205641659U (en) * | 2016-04-25 | 2016-10-12 | 广州哈思新能源科技有限公司 | High -efficient heat pump set system in two sources of ultra -low temperature |
| CN210272010U (en) * | 2019-04-08 | 2020-04-07 | 广东明阳电气有限公司 | Dry-type transformer cooling system and dry-type transformer system |
-
2019
- 2019-04-08 CN CN201910275687.2A patent/CN110060844A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2615599Y (en) * | 2003-02-14 | 2004-05-12 | 清华同方人工环境有限公司 | Low-temperature air-cooling heat pump machine set |
| CN205641659U (en) * | 2016-04-25 | 2016-10-12 | 广州哈思新能源科技有限公司 | High -efficient heat pump set system in two sources of ultra -low temperature |
| CN210272010U (en) * | 2019-04-08 | 2020-04-07 | 广东明阳电气有限公司 | Dry-type transformer cooling system and dry-type transformer system |
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| CB02 | Change of applicant information |
Address after: 528400 No.1, Hengmen Xingye West Road, Nanlang Town, Zhongshan City, Guangdong Province Applicant after: Guangdong Mingyang Electric Co., Ltd Address before: 528400 Guangdong province Zhongshan Nanlang Town Industrial Zone East Road No. 9 crane factory Applicant before: Guangdong Ruizhi Electric Technology Co. Ltd. |
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Address after: No.1, Hengmen Xingye West Road, Nanlang Town, Zhongshan City, Guangdong Province, 528400 Applicant after: Guangdong Mingyang Electric Co.,Ltd. Address before: No.1, Hengmen Xingye West Road, Nanlang Town, Zhongshan City, Guangdong Province, 528400 Applicant before: Guangdong Mingyang Electric Co.,Ltd. |
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Application publication date: 20190726 |
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| RJ01 | Rejection of invention patent application after publication |