Power station solution with high-temperature adaptability

Abstract

The invention relates to a high-temperature adaptive power station solution for a power station, which adopts a subarea cooling mode according to the characteristics of internal components of the power station, is convenient for regular maintenance and inspection, and can implement different cooling means according to the characteristics of different areas to realize effective cooling. By arranging the radiation refrigeration membrane module and applying the radiation refrigeration technology, the control area of the power station is passively cooled, energy consumption is not needed, and the operation cost is greatly reduced; by arranging the intelligent ventilation system, the power of the air supply device and the air exhaust device is automatically adjusted according to the temperature in the auxiliary equipment area, so that the ventilation and heat dissipation effects are changed, and the adaptability to the environment temperature is improved; through the arrangement of the inspection robot, the power station is subjected to regular inspection in an extreme environment, the temperature and humidity of each area of the power station are comprehensively controlled and fed back to the temperature and humidity control module for temperature regulation and control, manual inspection and control are not needed, and manpower waste is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power stations, and in particular to a solution for high temperature adaptability of power stations. Background Art

[0002] Substations include switch cabinets, transformers and other equipment. In summer, during high temperature and thunderstorm weather, a large amount of heat will be generated inside the substation. Internal transformers, disconnectors, etc. are prone to failure under high temperature conditions, shortening their service life and even causing fires or power outages. The real-time cooling solutions in existing substations are mostly external spray cooling, increased heat dissipation and ventilation, timely cleaning of debris, and manual regular maintenance and inspection. These measures increase the waterproof and anti-corrosion requirements of the power station, have poor cooling effects on components that cannot be sprayed, have poor automation levels, and cannot accurately cool down parts of the power station. Therefore, we have designed a high-temperature adaptable power station solution.

[0003] Patent number CN202210753817.0 is a Chinese invention patent, which discloses a method for judging the status of equipment based on the temperature field of a substation, including: establishing a three-dimensional model of the substation equipment, and dividing the surface of the three-dimensional model with a grid; collecting surface temperature data of the substation equipment; determining the temperature value corresponding to each of the grids according to the collected temperature data; judging whether the substation equipment is operating abnormally according to the temperature value corresponding to each of the grids; the invention also discloses a device for judging the status of equipment based on the temperature field of the substation; the invention can perform comprehensive temperature monitoring of various positions of the substation equipment and locate the heating position at the centimeter level, but the invention has the following problems: first, it does not have the function of fixed-point cooling of high-temperature areas according to the temperature, and secondly, it does not have a zoned cooling design to cool down different functional components. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies of the prior art and to solve the technical problems of poor internal cooling effect and poor cooling automation level in existing power stations due to high temperature weather, and the inability to accurately cool down local areas of the power station through zoning design, radiation cooling membrane modules, intelligent ventilation systems, fixed-point temperature control and drying systems, and patrol robots.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A power plant solution for high temperature adaptability of a power plant comprises the following steps:

[0007] Step 1: Divide the power station into control area, high-voltage equipment area, low-voltage equipment area, and auxiliary equipment area according to their functions;

[0008] Step 2: The control area is evenly distributed with temperature and humidity sensing modules, and a radiation cooling membrane module is set; the high-voltage equipment area and the low-voltage equipment area are both equipped with a fixed-point temperature control and drying system to cool and dehumidify different equipment inside the area, and the fixed-point temperature control and drying system includes a thermal infrared imaging module and an intelligent rapid condenser; the auxiliary equipment area is evenly distributed with temperature and humidity sensing modules, and an intelligent ventilation system is set to adjust the ventilation intensity according to the temperature and humidity of the area;

[0009] Step three: The control area is provided with a temperature and humidity control module, which is connected to the temperature and humidity sensing module and the thermal infrared imaging module, and controls the operation of the radiation cooling film module, the intelligent rapid condensing machine, and the intelligent ventilation system based on the temperature and humidity information.

[0010] Preferably, the radiation cooling film module is located on the outer shell surface of the control zone, and the radiation cooling film module comprises a carrier plate module and a composite film module, and the carrier plate module is fixed to the outer shell surface of the control zone in a snap-on manner.

[0011] As a preferred embodiment, three-dimensional dot models are established for both the high-voltage equipment area and the low-voltage equipment area, reference points are evenly distributed on the three-dimensional dot models, and the thermal infrared image module includes temperature data of each pixel point, and the position of each pixel point corresponds to the position of the reference point.

[0012] As a preferred embodiment, the intelligent rapid condensing machine is evenly distributed in the high-voltage equipment area and the low-voltage equipment area, and the intelligent rapid condensing machine is connected to the thermal infrared imaging module via a wireless communication protocol, and the intelligent rapid condensing machine is divided into an automatic mode and a manual mode.

[0013] As a preference, lightning protection devices are symmetrically provided at the inverter position of the high-voltage equipment area and the inverter position of the low-voltage equipment area, and a linear arc detection module is provided on the DC side of the circuit of the high-voltage equipment area.

[0014] As a preferred embodiment, the circuit connections of the high-voltage equipment area and the low-voltage equipment area are both made of high-temperature cables, the inlet and outlet holes of the high-temperature cables are sealed with fire-retardant mud, and the inlet and outlet ends of the high-temperature cables are painted with fire-retardant paint.

[0015] As a preferred embodiment, the intelligent ventilation system includes an air supply device, a control device and an exhaust device, the control device is electrically connected to the temperature and humidity control module, the air supply device and the exhaust device, respectively, and a first preset value and a second preset value are set in the control device, and the power of the air supply device and the exhaust device set in the first preset value is less than the power of the air supply device and the exhaust device set in the second preset value.

[0016] As a preferred embodiment, a patrol robot is provided in the power station to patrol and measure temperature and humidity in the control area, high-voltage equipment area, low-voltage equipment area and auxiliary equipment area, and the patrol robot is connected to the temperature and humidity control module via a wireless communication protocol.

[0017] Beneficial effects of the present invention:

[0018] (1) In the present invention, a zoning design is performed in the power station, and the power station is divided into a control area, a high-voltage equipment area, a low-voltage equipment area, and an auxiliary equipment area, so that the internal functional division is clear, which is convenient for regular maintenance and inspection. At the same time, different cooling methods can be implemented according to the characteristics of different areas to achieve effective cooling.

[0019] (2) The present invention provides a radiation cooling membrane module and utilizes radiation cooling technology to reflect the heat of solar radiation irradiated on the surface of the power station through the 8-13 μm infrared band, so that the control area of ​​the power station is cooled passively without consuming energy, thereby greatly reducing operating costs. In addition, the module is snap-fitted to the power station casing to facilitate replacement in the event of damage later.

[0020] (3) In the present invention, an intelligent ventilation system is provided to automatically adjust the power of the air supply device and the exhaust device according to the temperature in the auxiliary equipment area, thereby changing the effect of ventilation and heat dissipation and improving the adaptability to the ambient temperature.

[0021] (4) In the present invention, a patrol robot is provided to perform regular patrol inspections of the power station in extreme environments, comprehensively control the temperature and humidity of each area of ​​the power station, and feed back to the temperature and humidity control module for temperature regulation. No manual patrol inspection and regulation are required, thus reducing manpower waste.

[0022] In summary, the invention has the advantages of good zone cooling effect and energy saving, and is particularly suitable for the field of power station technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 This is a flowchart of the steps for high temperature adaptability of power plants.

[0025] Figure 2 This is a schematic diagram of the power station's partition structure.

[0026] Figure 3 This is a schematic diagram of the structure of the control area.

[0027] Figure 4 It is a structural schematic diagram of the high-voltage equipment area and the low-voltage equipment area.

[0028] Figure 5 This is a structural diagram of the auxiliary equipment area.

[0029] Figure 6 This is a structural diagram of the intelligent ventilation system. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings.

[0031] Embodiment 1

[0032] like Figures 1 to 6 As shown, the present invention provides a solution for a power plant with high temperature adaptability, comprising the following steps:

[0033] Step 1: Divide the power station into control area, high-voltage equipment area, low-voltage equipment area, and auxiliary equipment area according to their functions. The control area is responsible for monitoring the operating status of the entire power system and performing corresponding control operations. It is equipped with monitoring systems, protection devices and other equipment to achieve real-time monitoring and remote control of the power system. The high-voltage equipment area includes key equipment such as high-voltage switchgear, transformers, and mutual inductors. These equipment are responsible for converting high voltage into low voltage or vice versa to meet the needs of different users. The low-voltage equipment area is mainly responsible for further distributing the low voltage converted by the high-voltage equipment area to users. This area includes low-voltage switchgear, distribution boards, capacitors and other equipment, while the auxiliary equipment area includes ventilation systems, drainage systems, lighting systems, etc., to provide necessary support for the normal operation of the power station;

[0034] Step 2: The control area is evenly distributed with temperature and humidity sensing modules to detect the temperature and humidity in the control area, and a radiation cooling membrane module is set. The radiation cooling technology is used to reflect the heat of the solar radiation irradiated on the surface of the power station through the 8-13μm infrared band, so that the control area of ​​the power station is passively cooled without consuming energy, which greatly reduces the operating cost; the high-voltage equipment area and the low-voltage equipment area are both equipped with a fixed-point temperature control and drying system to cool and dehumidify different equipment inside the area. The fixed-point temperature control and drying system includes a thermal infrared image module and an intelligent rapid condenser. The thermal infrared image module plays a role in temperature measurement. The thermal infrared detector collects and records the thermal infrared radiation information radiated by the ground objects that is invisible to the human eye, and uses this thermal infrared information to identify the ground objects and invert surface parameters (such as temperature, emissivity, humidity, thermal inertia, etc.); the auxiliary equipment area is evenly distributed with temperature and humidity sensing modules, and an intelligent ventilation system is set to adjust the ventilation intensity according to the regional temperature and humidity;

[0035] Step 3: The control area is provided with a temperature and humidity control module for controlling and receiving the temperature and humidity sensing module, and feeding back the received information to the power station manager. The temperature and humidity control module is connected to the temperature and humidity sensing module and the thermal infrared imaging module, and controls the operation of the radiation cooling membrane module, the intelligent fast condensing machine, and the intelligent ventilation system based on the temperature and humidity information.

[0036] further, like Figure 4 As shown, The radiation cooling film module is located on the outer shell surface of the control area, and the radiation cooling film module includes a carrier plate module and a composite film module. The carrier plate module is fixed to the outer shell surface of the control area in a snap-fitting manner. The back of the carrier plate module is symmetrically provided with clips. The clips are elastic due to the material characteristics, so that the clips can be interference-fitted with the clip grooves of the outer shell on the surface of the control area, thereby achieving a snap-fitting effect, which is convenient for later replacement of the radiation cooling film module. The carrier plate module is made of plastic, and the composite film module reflects the heat of the solar radiation irradiated on the surface of the power station through the 8-13μm infrared band, so that the control area of ​​the power station is passively cooled without consuming energy, thereby greatly reducing operating costs.

[0037] Furthermore, three-dimensional dot models are established for the high-voltage equipment area and the low-voltage equipment area, and reference points are evenly distributed on the three-dimensional dot models. The thermal infrared image module includes temperature data of each pixel point, and the position of each pixel point corresponds to the position of the reference point. The specific locations with higher temperature and humidity in the high-voltage equipment area and the low-voltage equipment area can be known, so that the temperature and humidity control module controls the intelligent rapid condensation machine that is closer to start working, and quickly condenses and cools the positioning point.

[0038] Further, if Figure 4 As shown, the intelligent rapid condensing machine is evenly distributed in the high-voltage equipment area and the low-voltage equipment area, and the intelligent rapid condensing machine is connected to the thermal infrared imaging module through a wireless communication protocol, and the intelligent rapid condensing machine is divided into an automatic mode and a manual mode. In the automatic mode, when the thermal infrared imaging module detects that the temperature of a certain reference point becomes high, it directly controls the nearby intelligent rapid condensing machine to work, and quickly condenses and cools down the surrounding high temperature; in the manual mode, when the thermal infrared imaging module detects that the temperature of a certain reference point becomes high, it feeds back to the temperature and humidity control module, and the temperature and humidity control module feeds back information to the person in charge of the power station. The person judges whether the equipment fails according to the temperature and humidity values. If it is a fault, someone is sent for maintenance. If it is normal temperature rise, the intelligent rapid condensing machine is controlled to quickly cool down.

[0039] Furthermore, the inverter positions in the high-voltage equipment area and the inverter positions in the low-voltage equipment area are both symmetrically provided with lightning protection devices, which play a good role in lightning protection. The DC side of the circuit in the high-voltage equipment area is provided with a linear arc detection module, which is mainly used to prevent fire and ensure system safety.

[0040] Furthermore, the circuit connections of the high-voltage equipment area and the low-voltage equipment area both use high-temperature cables, which are resistant to high temperature, corrosion, aging, and have excellent electrical insulation and flame retardancy, and are suitable for various occasions requiring special requirements such as high temperature, corrosion resistance, and waterproofing. The entry and exit holes of the high-temperature cables are sealed with fire-retardant mud, and the entry and exit ends of the high-temperature cables are painted with fire-retardant paint to increase fire resistance and improve the safety of the power station.

[0041] Further, if Figure 6 As shown, the intelligent ventilation system includes an air supply device, a control device and an exhaust device, the control device is electrically connected to the temperature and humidity control module, the air supply device and the exhaust device, respectively, and a first preset value and a second preset value are set in the control device, the power of the air supply device and the exhaust device set in the first preset value is less than the power of the air supply device and the exhaust device set in the second preset value, the temperature and humidity sensing module detects the temperature in the auxiliary equipment area, and transmits the temperature and humidity information to the temperature and humidity control module, and the temperature and humidity control module transmits the information to the control device, so that external cold air enters the auxiliary equipment area under the action of the air supply device, and the hot air inside the auxiliary equipment area is discharged to the outside under the action of the exhaust device.

[0042] Further, if Figure 1 As shown, a patrol robot is provided in the power station to patrol and measure the temperature and humidity of the control area, high-voltage equipment area, low-voltage equipment area, and auxiliary equipment area. The patrol robot is connected to the temperature and humidity control module via a wireless communication protocol. The patrol robot conducts regular inspections of the power station under extreme environments, comprehensively controls the temperature and humidity of each area of ​​the power station, and feeds back to the temperature and humidity control module for temperature regulation. There is no need for manual patrol and regulation, thus reducing manpower waste.

[0043] Working process: First, the temperature and humidity sensing module and the thermal infrared image module detect the temperature and humidity changes in the relevant area; further, in the high-voltage equipment area and the low-voltage equipment area, in the automatic mode, when the thermal infrared image module detects that the temperature of a certain reference point has increased, it directly controls the nearby intelligent rapid condensation machine to work, and quickly condenses and cools the surrounding high temperature; further, in the manual mode, when the thermal infrared image module detects that the temperature of a certain reference point has increased, it is fed back to the temperature and humidity control module, and the temperature and humidity control module feeds back information to the person in charge of the power station, and the person judges whether the equipment is faulty according to the temperature and humidity values. If it is a fault, someone is sent for maintenance. If it is normal heating, the intelligent rapid condensation machine is controlled to quickly cool down; at the same time, in the auxiliary equipment area, the temperature and humidity sensing module detects the temperature in the auxiliary equipment area, and transmits the temperature and humidity information to the temperature and humidity control module, and then the temperature and humidity control module transmits the information to the control device; further, the control device selects the working power according to the temperature and humidity values, so that the external cold air enters the auxiliary equipment area under the action of the air supply device, and the hot air inside the auxiliary equipment area is discharged to the outside under the action of the exhaust device.

[0044] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "front and back", "left and right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the invention.

[0045] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0046] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A power plant solution for high temperature adaptability of a power plant, characterized by: The following steps are involved: Step 1: Divide the power station into control area, high-voltage equipment area, low-voltage equipment area, and auxiliary equipment area according to their functions; Step 2: The control area is evenly distributed with temperature and humidity sensing modules, and a radiation cooling membrane module is set; the high-voltage equipment area and the low-voltage equipment area are both equipped with a fixed-point temperature control and drying system to cool and dehumidify different equipment inside the area, and the fixed-point temperature control and drying system includes a thermal infrared imaging module and an intelligent rapid condenser; the auxiliary equipment area is evenly distributed with temperature and humidity sensing modules, and an intelligent ventilation system is set to adjust the ventilation intensity according to the temperature and humidity of the area; Step three: The control area is provided with a temperature and humidity control module, which is connected to the temperature and humidity sensing module and the thermal infrared imaging module, and controls the operation of the radiation cooling film module, the intelligent rapid condensing machine, and the intelligent ventilation system based on the temperature and humidity information.

2. A power plant solution for high temperature adaptability of a power plant according to claim 1, characterized in that: The radiation cooling film module is located on the outer shell surface of the control zone, and the radiation cooling film module includes a carrier plate module and a composite film module, and the carrier plate module is fixed on the outer shell surface of the control zone in a snap-fit ​​manner.

3. A power plant solution for high temperature adaptability of a power plant according to claim 1, characterized in that: A three-dimensional dot model is established for both the high-voltage equipment area and the low-voltage equipment area. Reference points are evenly distributed on the three-dimensional dot model. The thermal infrared image module includes temperature data of each pixel point. The position of each pixel point corresponds to the position of the reference point.

4. A power plant solution for high temperature adaptability of a power plant according to claim 1, characterized in that: The intelligent rapid condensing machines are evenly distributed in the high-voltage equipment area and the low-voltage equipment area, and the intelligent rapid condensing machines are connected to the thermal infrared imaging module via a wireless communication protocol, and the intelligent rapid condensing machines are divided into an automatic mode and a manual mode.

5. A power plant solution for high temperature adaptability of a power plant according to claim 1, characterized in that: The inverter position of the high-voltage equipment area and the inverter position of the low-voltage equipment area are both symmetrically provided with lightning protection devices, and the DC side of the circuit of the high-voltage equipment area is provided with a linear arc detection module.

6. A power plant solution for high temperature adaptability of a power plant according to claim 1, characterized in that: The circuit connections of the high-voltage equipment area and the low-voltage equipment area are both made of high-temperature cables, the inlet and outlet holes of the high-temperature cables are sealed with fire-retardant mud, and the inlet and outlet ends of the high-temperature cables are painted with fire-retardant paint.

7. A power plant solution for high temperature adaptability of a power plant according to claim 1, characterized in that: The intelligent ventilation system includes an air supply device, a control device and an exhaust device. The control device is electrically connected to the temperature and humidity control module, the air supply device and the exhaust device, respectively, and a first preset value and a second preset value are set in the control device. The power of the air supply device and the exhaust device set in the first preset value is less than the power of the air supply device and the exhaust device set in the second preset value.

8. A power plant solution for high temperature adaptability of a power plant according to claim 1, characterized in that: A patrol robot is provided in the power station to patrol and measure the temperature and humidity of the control area, high-voltage equipment area, low-voltage equipment area, and auxiliary equipment area. The patrol robot is connected to the temperature and humidity control module via a wireless communication protocol.

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