Device and method for improving power utilization reliability of thermal power plant
By laying two 10kV power supplies in the construction power supply opening and closing of the thermal power plant and connecting the power cabinet and distribution room, the problem of poor power supply in the thermal power plant is solved, and emergency power supply is achieved in the case of power loss in the entire factory, ensuring the rapid recovery and operation of the air compressor system.
Patent Information
- Application Number
- CN202411740173.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-03-28
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
There are poor reliability problems in thermal power plants, which leads to tripping of lines and shutdown of factory power, making emergency power supply inconvenient.
Two 10kV power supplies are laid in the construction power supply opening and closing site, connected to the No. 1 and No. 2 power supply cabinets, and are transported to the main factory through the working lines. The No. 2 and No. 1 distribution rooms are connected to the working lines through the connecting cables and the opening and closing site respectively, and are used for emergency power supplies in extreme situations such as power loss in the entire factory.
Through the consistent design of the upper power supply of the public 10kV distribution section, the public air compressor system can be restored to operation as soon as possible, and the reliability of power consumption in thermal power plants is improved.
Smart Images
Figure CN119727073A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of power consumption in thermal power plants, and in particular relates to a device and a method for improving the reliability of power consumption in thermal power plants. Background Art
[0002] A thermal power plant is a plant that uses combustibles (such as coal) as fuel to produce electricity. Its basic production process is: when the fuel is burned, it heats water to generate steam, converting the chemical energy of the fuel into thermal energy. The steam pressure drives the turbine to rotate, converting the thermal energy into mechanical energy. The turbine then drives the generator to rotate, converting the mechanical energy into electrical energy.
[0003] However, thermal power plants have poor reliability issues in their power supply, which affects safety. Line tripping causes a complete power outage in the plant, making emergency power supply inconvenient to use. Summary of the invention
[0004] In order to solve the problems raised in the above background technology, the present invention provides a device for improving the reliability of power supply in a thermal power plant, which has the characteristics of safe and reliable use of external power supply.
[0005] The invention also provides a method for improving the reliability of power supply in a thermal power plant.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A device for improving the reliability of power supply in a thermal power plant, comprising a construction power switch station, wherein the output end of the construction power switch station is respectively connected to a No. 1 power cabinet and a No. 2 power cabinet, the input end of the No. 2 power cabinet is connected to a No. 2 connecting cable, the input end of the No. 2 connecting cable is connected to the No. 2 switch station, the input end of the No. 2 switch station is connected to the No. 2 distribution room, the input end of the No. 1 power cabinet is connected to the No. 1 connecting cable, the input end of the No. 1 connecting cable is connected to the No. 1 switch station, and the input end of the No. 1 switch station is connected to the No. 1 distribution room.
[0007] Furthermore, the capacity of the No. 1 power cabinet and the No. 2 power cabinet is 5000kVA, and the No. 2 connecting cable and the No. 1 connecting cable are 10kv cables.
[0008] Furthermore, the length of the No. 2 connecting cable is 510 meters, and the length of the No. 1 connecting cable is 590 meters.
[0009] Furthermore, a set of microcomputer protection and measurement and control devices are provided inside the No. 1 power supply cabinet and the No. 2 power supply cabinet as load switch protection.
[0010] Furthermore, the No. 2 distribution room and the No. 1 distribution room provide a 10kV working voltage.
[0011] Furthermore, a method for improving the reliability of power supply in a thermal power plant comprises the following steps:
[0012] Two 10kV power supplies are laid from the construction power switch station, namely the No. 1 power cabinet and the No. 2 power cabinet, and transmitted to the 10kV working section I (Unit 1) and Section III (Unit 2) of the main plant through the working line. The No. 2 distribution room is connected to the working line through the No. 2 switch station and the No. 2 connecting cable, and the No. 1 distribution room is connected to the working line through the No. 1 switch station and the No. 1 connecting cable. It is used as an emergency power supply in extreme situations such as power outage in the whole plant. Both the No. 2 distribution room and the No. 1 distribution room are 10kV, and the No. 2 distribution room and the No. 1 distribution room are connected to the No. 2 power cabinet and the No. 1 power cabinet respectively. Since the upper power supply of the public 10kV distribution section is consistent, it ensures that the public air compressor system can resume operation as soon as possible.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] The present invention lays two 10kV power supplies, namely No. 1 power cabinet and No. 2 power cabinet, in the construction power switch station, and transmits them to the 10kV working No. 1 and No. 2 units of the main plant through the working line. The No. 2 distribution room is connected to the working line through the No. 2 switch station and the No. 2 connecting cable, and the No. 1 distribution room is connected to the working line through the No. 1 switch station and the No. 1 connecting cable. It is used for emergency power supply in extreme situations such as power outage in the whole plant. The No. 2 distribution room and the No. 1 distribution room are both 10kV, and the No. 2 distribution room and the No. 1 distribution room are respectively connected to the No. 2 power cabinet and the No. 1 power cabinet. Since the upper power supply of the public 10kV distribution section is consistent, it is ensured that the public air compressor system can resume operation in the first time, thereby improving the reliability of power supply. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the present invention;
[0016] In the figure: 1. Power supply cabinet No. 1; 2. Construction power switchgear; 3. Power supply cabinet No. 2; 4. Working line; 5. Connecting cable No. 2; 6. Switchgear No. 2; 7. Distribution room No. 2; 8. Distribution room No. 1; 9. Switchgear No. 1; 10. Connecting cable No. 1. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0018] Example 1
[0019] See also Figure 1The present invention provides the following technical solutions: A device for improving the reliability of power supply in a thermal power plant, comprising a construction power switch station 2, the output end of the construction power switch station 2 is respectively connected to a No. 1 power cabinet 1 and a No. 2 power cabinet 3, the input end of the No. 2 power cabinet 3 is connected to a No. 2 connecting cable 5, the input end of the No. 2 connecting cable 5 is connected to a No. 2 switch station 6, the input end of the No. 2 switch station 6 is connected to a No. 2 distribution room 7, the input end of the No. 1 power cabinet 1 is connected to a No. 1 connecting cable 10, the input end of the No. 1 connecting cable 10 is connected to a No. 1 switch station 9, and the input end of the No. 1 switch station 9 is connected to a No. 1 distribution room 8.
[0020] Further in the present invention, the capacity of the No. 1 power cabinet 1 and the No. 2 power cabinet 3 is 5000kVA, and the No. 2 connecting cable 5 and the No. 1 connecting cable 10 are 10kv cables.
[0021] Further in the present invention, the length of the No. 2 connecting cable 5 is 510 meters, and the length of the No. 1 connecting cable 10 is 590 meters.
[0022] Furthermore, in the present invention, a set of microcomputer protection and measurement and control devices are provided inside the No. 1 power supply cabinet 1 and the No. 2 power supply cabinet 3 as load switch protection.
[0023] Furthermore, in the present invention, the No. 2 distribution room 7 and the No. 1 distribution room 8 provide a 10 kV working voltage.
[0024] Example 2
[0025] A method for improving the reliability of power supply in a thermal power plant, the method comprising the following steps:
[0026] Two 10kV power supplies are laid from the construction power switch station 2, namely the No. 1 power cabinet 1 and the No. 2 power cabinet 3, and transmitted to the 10kV working section I (unit 1) and section III (unit 2) of the main plant through the working line 4. The No. 2 distribution room 7 is connected to the working line 4 through the No. 2 switch station 6 and the No. 2 connecting cable 5, and the No. 1 distribution room 8 is connected to the working line 4 through the No. 1 switch station 9 and the No. 1 connecting cable 10, which is used for emergency power supply in extreme situations such as power outage in the whole plant. The No. 2 distribution room 7 and the No. 1 distribution room 8 are both 10kV, and the No. 2 distribution room 7 and the No. 1 distribution room 8 are connected to the No. 2 power cabinet 3 and the No. 1 power cabinet 1 respectively. Since the upper power supply of the public 10kV distribution section is consistent, it is ensured that the public air compressor system can resume operation as soon as possible.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A device for improving the reliability of power supply in a thermal power plant, comprising a construction power switch station (2), characterized in that: The output end of the construction power switch station (2) is respectively connected to a No. 1 power cabinet (1) and a No. 2 power cabinet (3); the input end of the No. 2 power cabinet (3) is connected to a No. 2 connecting cable (5); the input end of the No. 2 connecting cable (5) is connected to a No. 2 switch station (6); the input end of the No. 2 switch station (6) is connected to a No. 2 power distribution room (7); the input end of the No. 1 power cabinet (1) is connected to a No. 1 connecting cable (10); the input end of the No. 1 connecting cable (10) is connected to a No. 1 switch station (9); and the input end of the No. 1 switch station (9) is connected to a No. 1 power distribution room (8).
2. The device for improving the reliability of power supply in a thermal power plant according to claim 1, characterized in that: The capacity of the No. 1 power cabinet (1) and the No. 2 power cabinet (3) is 5000 kVA.
3. The device for improving the reliability of power supply in a thermal power plant according to claim 1, characterized in that: The length of the No. 2 connecting cable (5) is 510 meters, and the length of the No. 1 connecting cable (10) is 590 meters. The No. 2 connecting cable (5) and the No. 1 connecting cable (10) are 10kv cables.
4. The device for improving the reliability of power supply in a thermal power plant according to claim 1, characterized in that: A set of microcomputer protection and control devices are provided inside the No. 1 power supply cabinet (1) and the No. 2 power supply cabinet (3) as load switch protection.
5. The device for improving the reliability of power supply in a thermal power plant according to claim 1, characterized in that: The No. 2 power distribution room (7) and the No. 1 power distribution room (8) provide a 10 kV working voltage.
6. A method for improving the reliability of power supply in a thermal power plant according to any one of claims 1 to 5, characterized in that: The methods include the following: Two 10kV power supplies are laid from the construction power switch station (2), namely the No. 1 power cabinet (1) and the No. 2 power cabinet (3), and transmitted to the 10kV working section I (unit 1) and section III (unit 2) of the main power plant through the working line (4). The No. 2 distribution room (7) is connected to the working line (4) through the No. 2 switch station (6) and the No. 2 connecting cable (5), and the No. 1 distribution room (8) is connected to the working line (4) through the No. 1 switch station (9) and the No. 1 connecting cable (10). They are used as emergency power supplies in extreme situations such as power failure in the entire plant. The No. 2 distribution room (7) and the No. 1 distribution room (8) are both 10kV, and the No. 2 distribution room (7) and the No. 1 distribution room (8) are connected to the No. 2 power cabinet (3) and the No. 1 power cabinet (1) respectively. Since the upper power supply of the public 10kV distribution section is consistent, it is ensured that the public air compressor system can resume operation in the first time.