CN116403769A - Novel bus hybrid cooling system based on power plant cooling system - Google Patents
Novel bus hybrid cooling system based on power plant cooling system Download PDFInfo
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- CN116403769A CN116403769A CN202310300015.9A CN202310300015A CN116403769A CN 116403769 A CN116403769 A CN 116403769A CN 202310300015 A CN202310300015 A CN 202310300015A CN 116403769 A CN116403769 A CN 116403769A
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- water
- cooling
- pipe
- cooling system
- power plant
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- 238000001816 cooling Methods 0.000 title claims abstract description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 137
- 239000000498 cooling water Substances 0.000 claims abstract description 39
- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000011033 desalting Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 14
- 238000012806 monitoring device Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/10—Cooling
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a novel busbar mixed cooling system based on a power plant cooling system, which comprises a demineralized water circulating cooling subsystem, a secondary cooling water subsystem and a DCS control system, wherein the demineralized water circulating cooling subsystem comprises a cooling water pipe, a backwater main pipe, a demineralized water tank, a first heat exchange pipe, a circulating water pump and a water main pipe which are sequentially communicated, the cooling water pipe is arranged in a busbar, and two ends of the cooling water pipe are respectively communicated with the backwater main pipe and the water main pipe; the secondary cooling water subsystem comprises a secondary water inlet pipe, a second heat exchange pipe, a secondary water outlet pipe and a secondary water cooling tank which are sequentially communicated, and the first heat exchange pipe and the second heat exchange pipe are arranged in the heat exchanger. The existing water circulation system of the power plant can be fully utilized, the heat dissipation efficiency is improved, the cost is reduced, the cooling mode can be switched, and the operation reliability is greatly improved.
Description
Technical Field
The invention relates to a novel bus hybrid cooling system based on a power plant cooling system, and belongs to the field of heat dissipation of electrical equipment.
Background
Among the many factors that affect the reliable operation of high voltage buses, heat dissipation is critical. In operation, a proper heat dissipation mode is selected, and reasonable design is performed, so that the overload capacity of the bus can be effectively improved, and the bus is one of important links essential for improving the operation reliability of the bus.
The heat dissipation mode of the high-voltage bus is mainly an air cooling or self-cooling mode. With the recent continuous development of domestic bus technology, the capacity of the bus is continuously improved, and the heat dissipation is affected by various reasons such as the area of a radiator, the ambient temperature, the use environment of the bus and the like, so that the heat dissipation requirement of a high-power bus cannot be completely met.
In order to improve the running environment and balance the running cost, the novel cooling system can greatly reduce the running cost when used in the tropical zone and the subtropical zone, can simultaneously meet the safe running under the heavy load working condition, and can also greatly reduce the manufacturing cost by utilizing the existing special water circulation working condition of the power plant.
Disclosure of Invention
The invention aims to provide a high-efficiency high-voltage bus hybrid cooling system, which can fully utilize the existing water circulation system of a power plant in practical application, improve the heat dissipation efficiency, reduce the cost, switch the cooling mode and greatly improve the running reliability so as to solve the problems in the background technology.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the novel busbar hybrid cooling system based on the power plant cooling system comprises a demineralized water circulating cooling subsystem, a secondary cooling water subsystem and a DCS control system, wherein the demineralized water circulating cooling subsystem comprises a cooling water pipe, a backwater main pipe, a demineralized water tank, a first heat exchange pipe, a circulating water pump and a water main pipe which are sequentially communicated, the cooling water pipe is arranged in a busbar, and two ends of the cooling water pipe are respectively communicated with the backwater main pipe and the water main pipe; the secondary cooling water subsystem comprises a secondary water inlet pipe, a second heat exchange pipe, a secondary water outlet pipe and a secondary water cooling tank which are sequentially communicated, and the first heat exchange pipe and the second heat exchange pipe are arranged in the heat exchanger.
According to one aspect of the invention, the bus is also provided with a cooling fan and an emergency water drain valve.
According to one aspect of the invention, the water outlet main pipe and the water return main pipe are stainless steel pipes, the cooling water pipe is a heat-resistant rubber hose, and the unit cooling water pipes are connected in parallel.
According to one aspect of the invention, two circulating water pumps are arranged, one circulating water pump is a normal working water pump, the other circulating water pump is a standby water pump, and the two circulating water pumps are connected in parallel.
According to one aspect of the invention, the demineralized water tank is provided with a water quality monitoring device and a water level monitoring device, which are connected with a DCS control system through data lines.
According to one aspect of the invention, an electrically operated valve is disposed between the pipe connections, the electrically operated valve being connected to the DCS control system via an electrical circuit.
According to one aspect of the invention, the bottom of the demineralized water tank is provided with a drain and a valve.
According to one aspect of the invention, the secondary water inlet pipe is communicated with one end of a three-way valve, and the other two ends of the three-way valve are respectively communicated with a secondary water cooling tank and an external water source.
The implementation of the invention has the advantages that:
the invention discloses a novel busbar mixed cooling system based on a power plant cooling system, which comprises a demineralized water circulating cooling subsystem, a secondary cooling water subsystem and a DCS control system, wherein the demineralized water circulating cooling subsystem comprises a cooling water pipe, a backwater main pipe, a demineralized water tank, a first heat exchange pipe, a circulating water pump and a water main pipe which are sequentially communicated, the cooling water pipe is arranged in a busbar, and two ends of the cooling water pipe are respectively communicated with the backwater main pipe and the water main pipe; the secondary cooling water subsystem comprises a secondary water inlet pipe, a second heat exchange pipe, a secondary water outlet pipe and a secondary water cooling tank which are sequentially communicated, and the first heat exchange pipe and the second heat exchange pipe are arranged in the heat exchanger. The existing water circulation system of the power plant can be fully utilized, the heat dissipation efficiency is improved, the cost is reduced, the cooling mode can be switched, the running reliability is greatly improved, and the problems in the background technology are solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a novel busbar hybrid cooling system based on a power plant cooling system.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the novel busbar hybrid cooling system based on the power plant cooling system comprises a demineralized water circulating cooling subsystem 1, a secondary cooling water subsystem 8 and a DCS control system 9, wherein the demineralized water circulating cooling subsystem comprises a cooling water pipe 1-2, a backwater main pipe 1-1, a desalting water tank 1-6, a first heat exchange pipe, a circulating water pump 1-4 and a water outlet main pipe 1-3 which are sequentially communicated, the cooling water pipe 1-2 is arranged in a busbar, and two ends of the cooling water pipe 1-2 are respectively communicated with the backwater main pipe 1-1 and the water outlet main pipe 1-3; the secondary cooling water subsystem 8 comprises a secondary water inlet pipe, a second heat exchange pipe, a secondary water outlet pipe and a secondary water cooling tank 8-3 which are sequentially communicated, and the first heat exchange pipe and the second heat exchange pipe are arranged in the heat exchanger 2.
The water replenishing of the desalting water tank is from the own desalting water production system of the power plant.
When the air temperature is low, the secondary circulating cooling water takes away the heat in the primary circulating cooling water through the closed-cooling heat exchanger, and finally the heat reaches the cooling tower for cooling. At higher temperatures, the industrial water cooling without circulation is directly used.
In this embodiment, the bus is further provided with a cooling fan 4 and an emergency drain valve 3.
In the fault or maintenance state of the water cooling system, the bus can still ensure heat dissipation through forced air cooling.
In this embodiment, the water outlet main pipe 1-3 and the water return main pipe 1-1 are stainless steel pipes, the cooling water pipe 1-2 is a heat-resistant rubber hose, and the unit cooling water pipe 1-2 adopts a parallel connection mode. The unit cooling water pipes are connected in parallel, so that the flow is ensured to be uniformly distributed.
In this embodiment, two circulating water pumps 1-4 are provided, one circulating water pump 1-4 is a normal working water pump, the other circulating water pump 1-4 is a standby water pump, and the two circulating water pumps 1-4 are connected in parallel. The two circulating water pumps are in a working state of one work and one standby, so that the continuous operation of the bus cooling circulation is ensured.
In this embodiment, the desalting water tank 1-6 is provided with a water quality monitoring device 7 and a water level monitoring device, and the water quality monitoring device 7 and the water level monitoring device are connected with the DCS control system 9 through data lines. The water quality monitoring system can transmit the water quality condition to the DCS, and the water level monitoring system can transmit the water level signal to the DCS.
The DCS control system is a power plant DCS control system, and can realize water leakage monitoring and alarming, condensation monitoring and controlling, constant temperature control of water and high water temperature alarming, conductivity monitoring and alarming of water, low water level alarming/high water level alarming of the demineralized water tank, starting and stopping of an interlocking circulating pump, switching of a valve, water supplementing of the demineralized water tank and the like.
In this embodiment, an electric valve is provided between the pipe connections, and the electric valve is connected to the DCS control system 9 through a circuit.
In this embodiment, the bottom of the desalting water tank 1-6 is provided with a drain outlet 5 and a valve. A part of desalted water can be discharged through the valve, and the water is discharged into the drainage ditch of the power plant.
In this embodiment, the secondary water inlet pipe is connected to one end of the three-way valve 8-2, and the other two ends of the three-way valve 8-2 are respectively connected to the secondary water cooling tank 8-3 and the external water source 8-1.
Compared with the prior art, the invention has the beneficial effects that:
the water cooling equipment has smaller sound and good equipment running environment.
The water cooling heat dissipation mode has excellent heat dissipation performance, higher reliability and strong adaptability to the running environment.
The temperature of the electrical equipment can be reduced below the ambient temperature, and the electrical equipment is not limited by the ambient temperature.
The existing water circulation system and demineralized water production system of the power plant are fully utilized, a water treatment device is not required to be arranged independently, some power plants are provided with closed cooling equipment, and only the demineralized water pipeline is connected, so that the system greatly reduces the cost and can be integrated with the process flow of the power plant perfectly.
The control of the heat dissipation system is incorporated into the DCS control system of the power plant, and local other control systems are not required to be additionally added, so that unified coordination control is conveniently performed according to the process flow of the power plant.
The air cooling mode and the water cooling mode can be switched, so that the requirements of different operation modes are greatly met, and meanwhile, continuous operation of equipment can be ensured.
The implementation of the invention has the advantages that:
the invention discloses a novel busbar mixed cooling system based on a power plant cooling system, which comprises a demineralized water circulating cooling subsystem, a secondary cooling water subsystem and a DCS control system, wherein the demineralized water circulating cooling subsystem comprises a cooling water pipe, a backwater main pipe, a demineralized water tank, a first heat exchange pipe, a circulating water pump and a water main pipe which are sequentially communicated, the cooling water pipe is arranged in a busbar, and two ends of the cooling water pipe are respectively communicated with the backwater main pipe and the water main pipe; the secondary cooling water subsystem comprises a secondary water inlet pipe, a second heat exchange pipe, a secondary water outlet pipe and a secondary water cooling tank which are sequentially communicated, and the first heat exchange pipe and the second heat exchange pipe are arranged in the heat exchanger. The existing water circulation system of the power plant can be fully utilized, the heat dissipation efficiency is improved, the cost is reduced, the cooling mode can be switched, the running reliability is greatly improved, and the problems in the background technology are solved.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. Novel generating line hybrid cooling system based on power plant cooling system, its characterized in that: the novel busbar hybrid cooling system based on the power plant cooling system comprises a demineralized water circulating cooling subsystem, a secondary cooling water subsystem and a DCS control system, wherein the demineralized water circulating cooling subsystem comprises a cooling water pipe, a backwater main pipe, a demineralized water tank, a first heat exchange pipe, a circulating water pump and a water outlet main pipe which are sequentially communicated, the cooling water pipe is arranged in a busbar, and two ends of the cooling water pipe are respectively communicated with the backwater main pipe and the water outlet main pipe; the secondary cooling water subsystem comprises a secondary water inlet pipe, a second heat exchange pipe, a secondary water outlet pipe and a secondary water cooling tank which are sequentially communicated, and the first heat exchange pipe and the second heat exchange pipe are arranged in the heat exchanger.
2. The novel power plant cooling system-based busbar hybrid cooling system as set forth in claim 1, wherein: and the bus is also provided with a cooling fan and an emergency water drain valve.
3. The novel power plant cooling system-based busbar hybrid cooling system as set forth in claim 2, wherein: the water outlet main pipe and the water return main pipe are stainless steel pipes, the cooling water pipe is a heat-resistant rubber hose, and the unit cooling water pipe adopts a parallel connection mode.
4. A novel power plant cooling system based busbar hybrid cooling system according to claim 3, wherein: the circulating water pumps are arranged in two, one circulating water pump is a normal working water pump, the other circulating water pump is a standby water pump, and the two circulating water pumps are connected in parallel.
5. The novel power plant cooling system-based busbar hybrid cooling system as set forth in claim 4, wherein: the demineralized water tank is provided with water quality monitoring equipment and water level monitoring equipment, and the water quality monitoring equipment and the water level monitoring equipment are connected with the DCS control system through data lines.
6. The novel power plant cooling system-based busbar hybrid cooling system as set forth in claim 5, wherein: an electric valve is arranged between the pipeline connection, and the electric valve is connected with the DCS control system through a circuit.
7. The novel power plant cooling system-based busbar hybrid cooling system of claim 6, wherein: the bottom of the desalting water tank is provided with a sewage outlet and a valve.
8. The novel power plant cooling system-based busbar hybrid cooling system of claim 7, wherein: the secondary water inlet pipe is communicated with one end of the three-way valve, and the other two ends of the three-way valve are respectively communicated with the secondary water cooling box and an external water source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310300015.9A CN116403769A (en) | 2023-03-26 | 2023-03-26 | Novel bus hybrid cooling system based on power plant cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310300015.9A CN116403769A (en) | 2023-03-26 | 2023-03-26 | Novel bus hybrid cooling system based on power plant cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116403769A true CN116403769A (en) | 2023-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310300015.9A Pending CN116403769A (en) | 2023-03-26 | 2023-03-26 | Novel bus hybrid cooling system based on power plant cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116403769A (en) |
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2023
- 2023-03-26 CN CN202310300015.9A patent/CN116403769A/en active Pending
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