Remote automatic starting system for transformer room air conditioner

Abstract

The utility model discloses a remote automatic starting system for a transformer room air conditioner in the technical field of transformer room temperature control. The remote automatic starting system comprises a transformer room and a central control room, the power transformation room is divided into a plurality of temperature control areas, a plurality of mating and power distribution devices and air conditioners are alternately distributed in the power transformation room, and the mating and power distribution devices and the air conditioners are distributed in the temperature control areas; each temperature control area is provided with a temperature detection module used for detecting real-time temperature information and an infrared communication module used for controlling starting and stopping of an air conditioner. A logic control module and a background display module are arranged in the central control room, the logic control module is in electric signal connection with the temperature detection module and the infrared communication module, and the background display module is in electric signal connection with the logic control module. According to the utility model, a subarea temperature control mode is adopted, full-automatic control and monitoring of the air conditioner in the transformer room are realized, and safe operation and economic operation of equipment in the transformer room are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature control of a transformer room, in particular to a remote automatic start system for an air conditioner in a transformer room. Background Art

[0002] There are a large number of transformers and distribution boxes in the substation. In a high temperature environment, the temperature of the electrical equipment in the substation rises, which can easily cause short circuit and circuit break accidents. The high temperature of the environment plus the heat emitted by the electrical equipment are the reasons why the electrical appliances cannot operate normally. At present, the substation (10KV) of the factory is equipped with air conditioning equipment, which effectively controls the temperature of the substation and provides a relatively strong environmental guarantee for the operation of the power distribution system. However, in the actual operation process, there are still the following shortcomings:

[0003] 1) The air conditioner in the substation room operates alone, and the central control room cannot obtain the operating status of the air conditioner in each substation room and the ambient temperature and humidity status, and cannot realize dynamic monitoring of the air conditioner operation and environmental conditions.

[0004] 2) The single-unit operation of the air conditioner in the substation room depends on manual start and stop, but manual start and stop cannot track the operation and environmental status of the corresponding power distribution system in time, and there is a risk of temperature rise due to untimely start and energy loss due to excessive start.

[0005] At present, intelligent air conditioners are widely used in civilian use under the guidance of smart homes, but in industrial applications, the mainstream industrial air conditioners that operate stably on the market do not have intelligent control functions, and the existing air conditioners in the substation not only do not have remote monitoring and control functions, but also do not have the function of expanding intelligent modules. They can only be controlled on-site by remote control. Utility Model Content

[0006] In view of this, the purpose of the utility model is to provide a remote automatic start system for the air conditioner in the substation room to solve the above technical problems, so as to replace the manual start and stop of the air conditioner and realize the fully automatic control of the air conditioner in the substation room.

[0007] The technical means adopted by the utility model are: a remote automatic start system for air conditioners in a transformer room, comprising a transformer room and a central control room;

[0008] The substation room is divided into a plurality of temperature-controlled areas, in which a plurality of power distribution equipment and air conditioners are alternately distributed, and the power distribution equipment and air conditioners are distributed in each temperature-controlled area; each temperature-controlled area is provided with a temperature detection module for detecting real-time temperature information and an infrared communication module for controlling the start and stop of the air conditioner;

[0009] A logic control module and a background display module are arranged in the central control room. The logic control module is electrically connected to the temperature detection module by signals, and is used to obtain real-time temperature information and average temperature information of each temperature control area. The logic control module is electrically connected to the infrared communication module by signals, and is used to transmit control information of the air conditioner in the temperature control area to the infrared communication module. The background display module is electrically connected to the logic control module by signals, and is used to display the opening point and quantity information of the air conditioner in each temperature control area.

[0010] Preferably, an alarm module is provided in the central control room, and the alarm module is electrically connected to the logic control module for giving an alarm when the temperature in the temperature control area is abnormal.

[0011] Preferably, the lower limit of the average temperature preset inside the logic control module is 28°C, and the upper limit of the average temperature preset inside the logic control module is 30°C.

[0012] Preferably, the temperature detection module is a temperature and humidity sensor.

[0013] Preferably, a data comparison module is arranged in the central control room, and the data comparison module is electrically connected to the logic control module for comparing the real-time temperature information and the average temperature information of the temperature control area in the same period at different times.

[0014] Preferably, the logic control module is a PLC controller.

[0015] Beneficial effects of the utility model:

[0016] The utility model adopts a zoned temperature control method, and improves the cooling effect of the air conditioner on the mating power equipment by alternately arranging the mating power equipment and the air conditioner in the substation room; obtains the real-time temperature information of each temperature control area and calculates the average temperature in the substation room through the temperature detection module arranged in the temperature control area, and determines the start point and number of the air conditioner in the substation room by comparing and judging the average temperature with the preset temperature threshold through the logic control module in the central control room, and controls the corresponding air conditioner to start through the infrared communication module arranged in the substation room, and cooperates with the background display module to display the start point and number of the air conditioner in the substation room in real time, thereby realizing full-automatic control and monitoring of the air conditioner in the substation room, and ensuring the safe and economical operation of the equipment inside the substation room. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the remote automatic start system of the transformer room air conditioner of the utility model;

[0018] Figure 2 This is the air conditioning control flow chart for the substation room;

[0019] Figure 3The utility model is a temperature control logic block diagram of the remote automatic start system of the transformer room air conditioner.

[0020] Description of reference numerals in the figures:

[0021] 10. Substation;

[0022] 11. Temperature control area; 12. Power distribution equipment; 13. Air conditioning; 14. Temperature detection module; 15. Infrared communication module;

[0023] 20. Central control room;

[0024] 21. Logic control module; 22. Background display module; 23. Alarm module; 24. Data comparison module. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the specific implementations of the present invention in conjunction with the accompanying drawings. These implementations are only used to illustrate the present invention, but not to limit the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0029] Examples, such as Figure 1 , Figure 2 and Figure 3 As shown, a remote automatic start system for a transformer room air conditioner includes a transformer room 10 and a central control room 20.

[0030] The transformer room 10 is divided into a plurality of temperature control areas 11, in which a plurality of electrical equipment 12 and air conditioners 13 are alternately distributed, and the electrical equipment 12 and air conditioners 13 are distributed in each temperature control area 11. Each temperature control area 11 is provided with a temperature detection module 14 for detecting real-time temperature information and an infrared communication module 15 for controlling the on and off of the air conditioner 13.

[0031] The central control room 20 is provided with a logic control module 21 and a background display module 22. The logic control module 21 is electrically connected to the temperature detection module 14 by signals, so as to obtain the real-time temperature information and the average temperature information of each temperature control area 11; the logic control module 21 is electrically connected to the infrared communication module 15 by signals, so as to transmit the control information of the air conditioner 13 in the temperature control area 11 to the infrared communication module 15; the background display module 22 is electrically connected to the logic control module 21 by signals, so as to display the opening point and quantity information of the air conditioner 13 in each temperature control area 11.

[0032] The present application adopts a zoned temperature control method, by alternately arranging the mating power equipment 12 and the air conditioner 13 in the substation 10, thereby improving the cooling effect of the air conditioner 13 on the mating power equipment 12; the temperature detection module 14 arranged in the temperature control area 11 obtains the real-time temperature information of each temperature control area 11 and calculates the average temperature in the substation 10, and the logic control module 21 in the central control room 20 compares and judges the average temperature with the preset temperature threshold, determines the start point and number of the air conditioner 13 in the substation 10, and controls the corresponding air conditioner 13 to start through the infrared communication module 15 arranged in the substation 10, cooperates with the background display module 22 to display the start point and number of the air conditioner 13 in the substation 10 in real time, thereby realizing the full automatic control and dynamic monitoring of the air conditioner 13 in the substation 10, and ensuring the safe and economical operation of the mating power equipment 12 inside the substation 10.

[0033] The "Standardization Specifications for Safety Production of Tobacco Enterprises" stipulates that the indoor exhaust temperature in summer should not exceed 40°C and the relative humidity should be less than 85%. Since the substation room is equipped with protection, measurement and control, and digital acquisition microcomputer systems, the ambient temperature requirements of the above devices will be relatively low. According to GB / T24274-2019 "Low-voltage withdrawable complete switchgear and control equipment" 7.1.1, the surrounding air does not exceed +40°C, and the average temperature in a 24h cycle does not exceed +35 degrees Celsius. According to my country's power industry standard DLT587-2007 "Relay Protection and Safety Automatic Device Operation Management Regulations", the indoor ambient temperature should be within the range of 5 to 30°C. It is determined that the temperature of the substation room should be controlled at 29±1°C to meet the environmental requirements of equipment components. That is, in the substation room 10, the lower limit of the average temperature is 28°C, the middle limit of the average temperature is 28.5°C, the upper limit of the average temperature is 29°C, and the upper limit of the average temperature is 30°C.

[0034] Specific embodiment 1, as Figure 1 , Figure 2 and Figure 3 As shown, a remote automatic start-up system for a transformer room air conditioner is used to realize automatic start-up and remote dynamic monitoring of the air conditioner in the transformer room; the system includes a transformer room 10 and a central control room 20.

[0035] The number of the transformer room 10 is one or more, and each transformer room 10 is divided into a plurality of temperature control areas 11. A plurality of power distribution equipment 12 and air conditioners 13 are alternately distributed in the transformer room 10, and the power distribution equipment 12 and air conditioners 13 are distributed in each temperature control area 11. Figure 1 In the figure, three power distribution devices 12 are evenly spaced in the transverse direction in the transformer room 10. There are six air conditioners 13, and the six air conditioners 13 are distributed in two rows. Three air conditioners 13 in each row are linearly distributed between two power distribution devices 12, so as to cool the power distribution devices 12 on both sides in the transverse direction.

[0036] The interior of the substation 10 is divided into three temperature-controlled areas 11, and in each temperature-controlled area 11 there are distribution electrical equipment 12 and air conditioners 13; in each temperature-controlled area 11 there are temperature detection modules 14 and infrared communication modules 15, the temperature detection modules 14 are temperature and humidity sensors, which are used to detect the real-time temperature information of the distribution electrical equipment 12 in the temperature-controlled area 11, and the infrared communication modules 15 are arranged at a position corresponding to the air conditioner 13, and are used to remotely control the start and stop of the air conditioner 13.

[0037] The central control room 20 is provided with a logic control module 21, a background display module 22 and an alarm module 23. The logic control module 21 is electrically connected to each temperature detection module 14 for acquiring the real-time temperature information of each temperature control area 11 and calculating the average temperature of the transformer room 10; the logic control module 21 is electrically connected to each infrared communication module 15 for determining and transmitting the control information of the air conditioner 13 in the temperature control area 11 to the infrared communication module 15 based on the comparison between the average temperature and the preset temperature threshold; the background display module 22 is electrically connected to the logic control module 21 for displaying the opening point and quantity information of the air conditioner 13 in each temperature control area 11; the alarm module 23 is electrically connected to the logic control module 21 for giving an alarm when the temperature in the temperature control area 11 is abnormal.

[0038] Preferably, the logic control module 21 is a PLC controller.

[0039] like Figure 1 and Figure 2As shown, the present application divides the interior of the substation 10 into three temperature control areas 11, and installs a temperature and humidity sensor in each of the three temperature control areas 11, so as to detect the real-time temperature of the distribution equipment 12 in the three temperature control areas 11 through the temperature and humidity sensors; the PLC controller receives the real-time temperature transmitted by the temperature and humidity sensor, calculates the average temperature in the substation 10, and the PLC controller compares the average temperature with the preset temperature threshold. If the average temperature is greater than the preset temperature threshold, the PLC controller selects the air conditioner to be turned on according to the heat load, and finally realizes the control of the number and position of the air conditioner 13 turned on through the infrared communication module 15, and the 4-20ma electrical signal of the temperature and humidity sensor is fed back to the PLC controller to form a closed-loop automatic control system.

[0040] More preferably, the lower limit of the average temperature preset in the logic control module 21 is 28°C, the middle limit of the average temperature preset in the logic control module 21 is 28.5°C, the upper limit of the average temperature preset in the logic control module 21 is 29°C, and the upper limit of the average temperature preset in the logic control module 21 is 30°C. A data comparison module 24 is arranged in the central control room 20, and the data comparison module 24 is connected to the logic control module 21 by electrical signals, and is used to compare the real-time temperature information and the average temperature information of the temperature control area 11 in the same period of different periods.

[0041] like Figure 3 As shown, the automatic start system in this application has the function of judging and alarming. The ambient temperature data of the substation 10 is read by the PLC controller and compared with the set threshold of the parameter for judging. When the data result is within the middle limit range, it will automatically prompt the operation and maintenance personnel to pay attention to the operation status of the air conditioner in the substation. When the value exceeds the upper limit, an alarm will be issued to warn the operator to check the operation status of the air conditioner in the substation on site.

[0042] Specifically, Figure 3 As shown, after the temperature and humidity sensors measure the real-time temperatures of the three temperature control areas 11, the PLC controller calculates the average temperature T in the transformer room 10 according to the real-time temperatures of the three temperature control areas 11, and first determines the size of the average temperature T and the lower limit of the average temperature 28°C. When 28°C ≤ T, turn on an air conditioner 13 in the temperature control area 11 corresponding to the highest real-time temperature.

[0043] After running for a period of time, the average temperature T in the substation room 10 is calculated again, and then the size of the average temperature T and the average temperature limit 28.5°C is determined. If 28.5°C ≤ T, then turn on another air conditioner 13 in the temperature control area 11 corresponding to the highest real-time temperature, that is, a total of two air conditioners 13 are turned on in the substation room 10; if T1 < 28.5°C, then maintain the operation state of the air conditioner 13 in the substation room 10, that is, when 28°C ≤ T < 28.5°C, a total of one air conditioner 13 is turned on in the substation room 10.

[0044] After running for a period of time, the average temperature T in the substation room 10 is calculated again, and then the size of the average temperature T and the average temperature upper limit 29°C is determined. If 29°C ≤ T, an air conditioner 13 in the temperature control area 11 corresponding to the highest real-time temperature is turned on, that is, a total of three air conditioners 13 are turned on in the substation room 10. If T < 29°C, the operation state of the air conditioner 13 in the substation room is maintained; that is, when 28.5°C ≤ T ≤ 29°C, a total of two air conditioners 13 are turned on in the substation room 10.

[0045] After running for a period of time, the average temperature T in the substation 10 is calculated again, and then the difference between the average temperature T and the average temperature exceeding the upper limit of 30°C is determined. If 30°C < T3, all air conditioners 13 in the substation 10 are turned on and an alarm is sounded to prompt the operation and maintenance personnel to repair. That is, when 29°C < T ≤ 30°C, a total of three air conditioners 13 are turned on in the substation 10, and when 30°C < T, all air conditioners 13 in the substation 10 are turned on.

[0046] During the operation of the system, the measured data was collected and archived, and the air conditioning power consumption data from July to October 2021 before the application and from July to October 2022 after the application were statistically analyzed as follows:

[0047] Date (year / month) Unit (KW / h) 2021-07 13692 2021-08 13737 2021-09 14103 2021-10 13471 2022-07 8862 2022-08 9352 2022-09 6637 2022-10 4074

[0048] Except for October 2022 when the external ambient temperature was lower than in previous years and the air-conditioning power consumption in the substation dropped by more than 50%, the air-conditioning power consumption in other months decreased by 30% compared with previous years, achieving the goal of energy saving and consumption reduction.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A remote automatic start system for air conditioner in transformer room, characterized in that: It includes a transformer room (10) and a central control room (20); The transformer room (10) is divided into a plurality of temperature-controlled areas (11), a plurality of electrical cross-connection equipment (12) and air conditioners (13) are alternately distributed in the transformer room (10), and the electrical cross-connection equipment (12) and air conditioners (13) are distributed in each temperature-controlled area (11); each temperature-controlled area (11) is provided with a temperature detection module (14) for detecting real-time temperature information and an infrared communication module (15) for controlling the opening and closing of the air conditioner (13); The central control room (20) is provided with a logic control module (21) and a background display module (22). The logic control module (21) is electrically connected to the temperature detection module (14) for obtaining real-time temperature information and average temperature information of each temperature control area (11). The logic control module (21) is electrically connected to the infrared communication module (15) for transmitting control information of the air conditioner (13) in the temperature control area (11) to the infrared communication module (15). The background display module (22) is electrically connected to the logic control module (21) for displaying the opening point and quantity information of the air conditioner (13) in each temperature control area (11).

2. A remote automatic start system for a transformer room air conditioner according to claim 1, characterized in that: An alarm module (23) is provided in the central control room (20), and the alarm module (23) is electrically connected to the logic control module (21) and is used to give an alarm when the temperature in the temperature control area (11) is abnormal.

3. A remote automatic start system for a transformer room air conditioner according to claim 2, characterized in that: The lower limit of the average temperature preset inside the logic control module (21) is 28° C., and the upper limit of the average temperature preset inside the logic control module (21) is 30° C.

4. A remote automatic start system for a transformer room air conditioner according to claim 1, characterized in that: The temperature detection module (14) is a temperature and humidity sensor.

5. A remote automatic start system for transformer room air conditioner according to claim 1, characterized in that: A data comparison module (24) is arranged in the central control room (20), and the data comparison module (24) is electrically connected to the logic control module (21) for comparing the real-time temperature information and the average temperature information of the temperature control area (11) at the same time period in different periods.

6. A remote automatic start system for a transformer room air conditioner according to claim 1, characterized in that: The logic control module (21) is a PLC controller.

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