CN212625060U - Liquid cooling system of gas transformer and transformer substation - Google Patents
Liquid cooling system of gas transformer and transformer substation Download PDFInfo
- Publication number
- CN212625060U CN212625060U CN202020961693.1U CN202020961693U CN212625060U CN 212625060 U CN212625060 U CN 212625060U CN 202020961693 U CN202020961693 U CN 202020961693U CN 212625060 U CN212625060 U CN 212625060U
- Authority
- CN
- China
- Prior art keywords
- gas
- transformer
- main
- heat exchanger
- cooling
- Prior art date
- 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.)
- Active
Links
Images
Abstract
The utility model provides a gas transformer liquid cooling system and transformer substation. The utility model provides a gas transformer liquid cooling system includes gas transformer, cooling device, heat transfer device and coolant, and insulating gas among the gas transformer can enter and carry out the heat exchange with coolant among the heat transfer device, and coolant cools off insulating gas, and cooling device can cool off coolant. This gas transformer liquid cooling system adopts the mode of liquid cooling to cool down gas transformer, need not set up great mechanical air exit or vent in the main room that becomes at its place, and the gas volume of revealing outside the transformer substation when consequently insulating gas takes place to leak is few, and the security is higher. The utility model provides a transformer substation includes above-mentioned gas transformer liquid cooling system, and the quantity of gas of revealing to the transformer substation is few when insulating gas takes place to leak, and the security is higher.
Description
Technical Field
The utility model belongs to the technical field of the vary voltage technique and specifically relates to a gas transformer liquid cooling system and transformer substation is related to.
Background
In a traditional transformer substation adopting a gas transformer, the gas transformer is mostly cooled by air cooling. The main transformer chamber for placing the gas transformer is provided with a large air inlet and a large mechanical air outlet, after the insulating gas in the gas transformer absorbs the heat of components such as an iron core and a winding, the heat can be transmitted to the air in the main transformer chamber through the radiating fins, the air in the main transformer chamber can be discharged from the mechanical air outlet under the action of air exhaust equipment, and finally the heat of the transformer is taken out of a room. However, once the insulating gas leaks from the gas transformer, the insulating gas may gush out of the substation along with the mechanical exhaust outlet, and there is a high possibility of causing damage to pedestrians.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a gas transformer liquid cooling system adopts the mode of liquid cooling to cool down gas transformer, need not set up great mechanical air exit or vent in the main room that becomes at its place, and the quantity of gas of revealing outside the transformer substation when consequently insulating gas takes place to leak is few, and the security is higher.
The utility model discloses still provide a transformer substation including above-mentioned gas transformer liquid cooling system.
In a first aspect, an embodiment of the present invention provides a liquid cooling system for a gas transformer, including:
a liquid cooling system for a gas transformer, comprising:
a gas transformer having an insulating gas inside;
a heat exchange device;
a cooling device;
the gas transformer and the heat exchange device are connected through the first circulating pipeline, and the insulating gas can flow in the first circulating pipeline;
the cooling device is connected with the heat exchange device through the second circulating pipeline, and a cooling medium is filled in the second circulating pipeline;
the insulating gas and the cooling medium can enter the heat exchange device for heat exchange, and the cooling device can cool the cooling medium.
The utility model discloses potential device has following beneficial effect at least: carry out cooling to gas transformer through the mode of liquid cooling, the heat that the gas transformer operation in-process produced transmits for cooling medium through insulating gas earlier, and the rethread cooling medium transmits outdoors for the main room that becomes at gas transformer place need not set up great mechanical air exit or vent, and when insulating gas takes place to leak, the gas quantity that leaks outside the transformer substation is less, and the injury to the pedestrian is still less, and the security is higher.
According to the liquid cooling system of the gas transformer in other embodiments of the present invention, the heat exchanging device includes a main heat exchanger and an auxiliary heat exchanger, and the main heat exchanger and the auxiliary heat exchanger are connected in parallel; the insulating gas can enter and exit the main heat exchanger or the auxiliary heat exchanger through the first circulating pipeline, and the cooling medium can enter and exit the main heat exchanger or the auxiliary heat exchanger through the second circulating pipeline.
According to the utility model discloses a gas transformer liquid cooling system of other embodiments, the coolant is water.
According to other embodiments of the present invention, the gas transformer liquid cooling system, the cooling device comprises a cooling tower.
In a second aspect, an embodiment of the present invention provides a transformer substation including a gas transformer liquid cooling system as described in the previous embodiment.
The utility model discloses transformer substation has following beneficial effect at least: the transformer room that becomes of transformer substation need not set up great mechanical air exit and air intake and carries out the forced air cooling heat dissipation to gas transformer, and when insulating gas in the gas transformer leaked, the insulating gas volume that becomes room flow direction outside from becoming can significantly reduce, and is safer to the pedestrian on the way.
According to the utility model discloses a transformer substation of other embodiments, with main body building joint construction, still include the main room that becomes, the main room embedding that becomes in the main body building, gas transformer is located become in the room, cooling device is located become outdoor.
According to the utility model discloses a transformer substation of other embodiments, heat transfer device is located become indoor.
Drawings
FIG. 1 is a schematic diagram of a liquid cooling system of a gas transformer in a first embodiment;
FIG. 2 is a simplified schematic diagram of a liquid cooling system of a gas transformer in a second embodiment;
fig. 3 is a schematic diagram of a substation in a third embodiment.
Detailed Description
The conception and the resulting technical effects of the present invention will be described clearly and completely with reference to the following embodiments, so that the objects, features and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the embodiments of the present invention, if a feature is referred to as being "disposed", "fixed", "connected", or "mounted" on another feature, it can be directly disposed, fixed, or connected to the other feature or indirectly disposed, fixed, connected, or mounted on the other feature. In the description of the embodiments of the present invention, if "a plurality" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "more than", "less than" or "within" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.
The first embodiment:
referring to fig. 1, the present embodiment provides a liquid cooling system for a gas transformer, which includes a gas transformer 101, a cooling device 103 and a heat exchanging device 102. In this embodiment, the gas transformer 101 is made of SF6Gas transformer, SF6(Sulfur hexafluoride) gas as an insulating medium (insulating gas) of the gas transformer 101, SF6The gas is located inside the gas transformer 101 and fills between the core and the windings. The gas transformer 101 is connected with the heat exchanger 102 through a first circulation pipeline, the cooling device 103 is connected with the heat exchanger 102 through a second circulation pipeline, and the second circulation pipeline is connected with the first circulation pipelineThe loop circuit is filled with a cooling medium, the insulating gas can flow in the first circulating circuit, and the cooling medium can flow in the second circulating circuit.
More specifically, in the present embodiment, the first circulation line includes a first inflow pipe 104 and a first outflow pipe 105, and the second circulation line includes a second inflow pipe 107 and a second outflow pipe 106. A first inflow pipe 104 and a first outflow pipe 105 are connected between the gas transformer 101 and the heat exchange device 102, and a second inflow pipe 107 and a second outflow pipe 106 are connected between the cooling device 103 and the heat exchange device 102. SF6Flows into the heat exchange device 102 through the first inflow pipe 104 from the inside of the gas transformer 101, and then flows back to the inside of the gas transformer 101 through the first outflow pipe 105 from the inside of the heat exchange device 102; the cooling medium flows from the cooling device 103 into the heat exchange device 102 through the second inflow pipe 107, and flows back from the heat exchange device 102 to the cooling device 103 through the second outflow pipe 106.
When the gas transformer 101 is operated, a large amount of heat is generated inside the gas transformer 101 due to the heat effect of the current, so that the SF is generated6The gas temperature rises; SF6The gas and the cooling medium exchange heat in the heat exchanger 102, and the temperature of the cooling medium entering the heat exchanger 102 is higher than that of SF6Temperature of gas is low, SF6Part of the heat of the gas is transferred to the cooling medium, cooled SF6The gas returns to the gas transformer 101, which allows the gas transformer 101 to operate at a safe temperature. After the cooling medium flows back to the cooling device 103, the temperature of the cooling medium drops under the action of the cooling device 103, and then the cooling medium flows to the heat exchanging device 102 again to perform the next round of cooling the insulating gas.
In this embodiment, the heat exchanger 102 is a tube type heat exchanger, which has a simple and compact structure and a low cost, and is suitable for heat exchange between gas and water.
The insulating gas in the gas transformer 101 may be harmful to the human body if leaked to the external environment. With SF6Gas, for example, although it is nontoxic, has a higher density than air at normal temperature and leaks to the outside of the substation6The gas can be deposited on the road surface, and the air can be extruded to go upwards; when SF6When the gas leakage rate is relatively large, SF6The air is possibly extruded to a higher position by the air, so that the air content at the height of a common person is greatly reduced, and the poisoning phenomenon of pedestrians is caused.
In this embodiment, carry out cooling to gas transformer 101 through the mode of liquid cooling, the heat that produces among the gas transformer 101 operation process is transmitted for cooling medium through insulating gas earlier, and the rethread cooling medium transmits outdoors for the main transformer room at gas transformer 101 place need not set up great mechanical air exit or vent, and when insulating gas takes place to leak, the gas quantity that leaks to the transformer substation is less, and is still less to pedestrian's injury, and the security is higher.
The cooling medium only flows through the cooling device 103 and the heat exchange device 102, and the flow channel of the cooling medium is not in contact with the gas transformer 101 in the heat dissipation process of the gas transformer 101, so that the risk of short circuit of the gas transformer 101 caused by leakage of the cooling medium is reduced, and the safety of the gas transformer 101 in the operation process is higher.
The cooling medium may be chosen in many ways, as long as its temperature can be lowered to a temperature lower than the heated SF6The temperature of the gas is low. Generally, the temperature of the gas transformer 101 during normal operation is about 75 ℃, which is much higher than the normal temperature of water, so in this embodiment, the cooling medium is selectedWhat be water, what cooling device 103 that corresponds chose to be the cooling tower, in the cooling tower, cool off water (cooling to the normal atmospheric temperature) through natural draft, do not need refrigeration plant to refrigerate water (water under the normal atmospheric temperature can be to the SF that is heated6Gas cooling) is more energy-saving. To optimize the cooling effect, the cooling device 103 may also adopt a refrigeration unit to further cool the cooling medium, so as to make the cooling medium and SF6The temperature difference of the gas is larger, and the heat exchange effect is enhanced.
Second embodiment:
referring to fig. 2, this embodiment is similar to the first embodiment, with differences including, but not limited to: the heat exchange device 102 comprises a main heat exchanger 201 and an auxiliary heat exchanger 202, the main heat exchanger 201 is connected with the auxiliary heat exchanger 202 in parallel, the insulating gas can enter and exit the main heat exchanger 201 or the auxiliary heat exchanger 202 through the first circulation pipeline, and the cooling medium can enter and exit the main heat exchanger 201 or the auxiliary heat exchanger 202 through the second circulation pipeline.
During normal operation, only the primary heat exchanger 201 is used, and the secondary heat exchanger 202, i.e. the cooling medium and the insulating gas (SF), is not used6) Flows only through the primary heat exchanger 201 and not through the secondary heat exchanger 202; when the primary heat exchanger 201 fails or needs maintenance, it is possible to choose to flow the cooling medium and the insulating gas through the secondary heat exchanger 202 instead of through the primary heat exchanger 201. Specifically, referring to fig. 2, the first circulation line and the second circulation line have valves 203 in different branches, and the flow directions of the cooling medium and the insulating gas can be switched by adjusting the opening and closing of the different valves 203.
The specific number of primary and secondary heat exchangers 201, 202 may be adjusted, for example, in other embodiments, 3 primary heat exchangers 201 and 1 secondary heat exchanger 202 may be provided according to the "three-way-one-standby" configuration principle. In a general operation process, a cooling medium and an insulating gas are made to flow through 3 main heat exchangers; when one of the main heat exchangers 201 fails, the cooling medium and the insulating gas may be made to flow through the other two main heat exchangers 201 and the sub heat exchanger 202.
The third embodiment:
the embodiment provides a transformer substation, which comprises the liquid cooling system of the gas transformer.
More specifically, the substation provided in this embodiment is an embedded substation, and does not need to be built independently, the substation is built together with a main building 302 (the main building 302 may be a commercial office building, a shopping center, etc.), referring to fig. 3, the substation includes a main transformer room 301, the main transformer room 301 is embedded in the main building 302, one of the main transformer room 301 faces a road (the left and right sides of the main building 302 are roads), and one face of the main transformer room 301 facing the road is provided with a louver 303, so as to implement the most basic ventilation between the main transformer room 301 and the outside. The gas transformer 101 is located in the main transformer chamber 301, and the cooling device 103 is located outside the main transformer chamber 301.
After the cooling medium takes away the heat of the gas transformer 101, the heat needs to be transferred again in the cooling device 103, for example, to the air in the environment; if the cooling device 103 is placed in the main transformer chamber 301, the heat will be retained in the main transformer chamber 301, and the ambient temperature of the main transformer chamber 301 will also be raised, so that the gas transformer 101 still operates at a higher temperature; therefore, the cooling device 103 is disposed outside the main transformer chamber 301, which is beneficial to realize true heat dissipation, so that the gas transformer 101 does not operate at an excessively high temperature. The cooling device 103 may be located on the equipment floor or attic of the main building 302.
In the transformer substation of the embodiment, the main transformer chamber 301 is only provided with the smaller shutter 303, so that the air-cooling heat dissipation of the gas transformer 101 is not required to be provided with a larger mechanical air outlet and an air inlet, when the insulating gas in the gas transformer 101 leaks, the amount of the insulating gas flowing from the main transformer chamber 301 to the outside of the main building 302 is greatly reduced, and the transformer substation is safer for pedestrians on the road.
In addition, in this embodiment, the heat exchanging device 102 is also disposed in the main transformer chamber 301. On one hand, the heat exchange device 102 is arranged in the main transformer chamber 301, so that an additional equipment room for placing the heat exchange device 102 is not needed, and the space is saved; on the other hand, if the heat exchange device 102 is disposed outside the main transformer chamber 301, the insulating gas needs to flow through the outside of the main transformer chamber 301, the potential range of leakage of the insulating gas is wider, and the safety is poor, so that the heat exchange device 102 is disposed in the main transformer chamber 301, which is beneficial to improving the safety of the transformer substation.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Claims (7)
1. A liquid cooling system for a gas transformer, comprising:
a gas transformer having an insulating gas inside;
a heat exchange device;
a cooling device;
the gas transformer and the heat exchange device are connected through the first circulating pipeline, and the insulating gas can flow in the first circulating pipeline;
the cooling device is connected with the heat exchange device through the second circulating pipeline, and a cooling medium is filled in the second circulating pipeline;
the insulating gas and the cooling medium can enter the heat exchange device for heat exchange, and the cooling device can cool the cooling medium.
2. The liquid cooling system of claim 1, wherein the heat exchanging device comprises a primary heat exchanger and a secondary heat exchanger, and the primary heat exchanger and the secondary heat exchanger are connected in parallel; the insulating gas can enter and exit the main heat exchanger or the auxiliary heat exchanger through the first circulating pipeline, and the cooling medium can enter and exit the main heat exchanger or the auxiliary heat exchanger through the second circulating pipeline.
3. The gas transformer liquid cooling system of claim 1, wherein the cooling medium is water.
4. The gas transformer liquid cooling system of claim 3, wherein the cooling device comprises a cooling tower.
5. A substation, comprising: the liquid cooling system of any one of claims 1-4.
6. The substation according to claim 5, wherein the substation is co-constructed with a main building, the substation comprising a main transformer chamber embedded in the main building, the gas transformer being located in the main transformer chamber, the cooling device being located outside the main transformer chamber.
7. A substation according to claim 6, wherein the heat exchange means is located within the main substation chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020961693.1U CN212625060U (en) | 2020-05-29 | 2020-05-29 | Liquid cooling system of gas transformer and transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020961693.1U CN212625060U (en) | 2020-05-29 | 2020-05-29 | Liquid cooling system of gas transformer and transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212625060U true CN212625060U (en) | 2021-02-26 |
Family
ID=74750249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020961693.1U Active CN212625060U (en) | 2020-05-29 | 2020-05-29 | Liquid cooling system of gas transformer and transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212625060U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114242401A (en) * | 2021-10-26 | 2022-03-25 | 保定天威保变电气股份有限公司 | Arrangement system of inner-cooling circulating water cooling type flexible-direct transformer |
-
2020
- 2020-05-29 CN CN202020961693.1U patent/CN212625060U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114242401A (en) * | 2021-10-26 | 2022-03-25 | 保定天威保变电气股份有限公司 | Arrangement system of inner-cooling circulating water cooling type flexible-direct transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201986326U (en) | Cooling plug-in box and cooling system of machine set | |
| CN205281101U (en) | Integrated type liquid cooling system and projection equipment | |
| CN212625060U (en) | Liquid cooling system of gas transformer and transformer substation | |
| CN201163745Y (en) | Thermal power exchange and equipment cooling apparatus of high voltage frequency convertor | |
| CN104633873A (en) | Air conditioning unit | |
| CN209184046U (en) | A kind of High-voltage Electric tank | |
| CN104534598B (en) | Using the air conditioner in machine room hot-water heating system and its control method of double water source heat pump | |
| CN104994707B (en) | Liquid-cooled radiating rack cabinet door | |
| CN113310155A (en) | Building ventilation device | |
| WO2024012034A1 (en) | Control method and apparatus for air conditioner, and electronic device, storage medium and air conditioner | |
| KR20170126656A (en) | Heat exchange | |
| CN210143223U (en) | Cabinet for 5G BBU equipment pooling heat dissipation | |
| CN207081146U (en) | A kind of air-conditioning system in large-scale workshop | |
| CN107105602B (en) | Cooling water system for data center | |
| CN213367622U (en) | Frequency converter and refrigerating system | |
| CN210840516U (en) | Intelligent electric control device | |
| CN209843904U (en) | Temperature control system and energy storage battery cabinet | |
| CN201555316U (en) | Cooling energy-saving device of unmanned engine room and base station | |
| CN106659082A (en) | Pump-type natural cooling system and data center with pump-type natural cooling system | |
| CN202232014U (en) | Container data center cooling device | |
| CN220043999U (en) | Liquid cooling rack heat recovery device and system for data center | |
| CN211406693U (en) | Heat dissipation frost prevention rack for cloud computer | |
| CN217721805U (en) | Refrigerating system | |
| CN215453689U (en) | Data center heat pipe air conditioning system | |
| CN217444195U (en) | Multipurpose combined transformer for air cooler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |