Fixed switch cabinet with infrared temperature measuring mechanism

Abstract

The utility model discloses a fixed switch cabinet with an infrared temperature measuring mechanism, which comprises a steel cabinet body, a cable chamber is arranged at the bottom of one side in the steel cabinet body, a relay instrument chamber is arranged at the top end of one side in the steel cabinet body, and the infrared temperature measuring mechanism is arranged at the front end of an opening and closing door. According to the fixed switch cabinet with the infrared temperature measuring mechanism, the infrared temperature measuring sensor, the liquid crystal display screen and the buzzer are arranged, so that when the fixed switch cabinet is used, the temperature of a transformer in the working process rises rapidly, and the infrared temperature measuring sensor keeps monitoring the transformer and feeds back a temperature value to the liquid crystal display screen; when the temperature exceeds a corresponding threshold value or the device is on fire and smokes, the smoke sensor and the infrared temperature measurement sensor synchronously sense signals and feed back the signals upwards through the signal wire, and the buzzer synchronously sounds to remind a worker of timely maintenance, so that the function of monitoring the internal temperature is realized, and the problem that the device does not have the function of monitoring the internal temperature is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a fixed switch cabinet with an infrared temperature measuring mechanism. Background Art

[0002] Fixed switchgear is a common electrical equipment. Its main function is to open and close, control and protect electrical equipment during the process of power generation, transmission, distribution and energy conversion in the power system.

[0003] The common fixed switch cabinets on the market are mostly similar in structure, with a cold-rolled steel shell as the main body, and the interior is divided into multiple areas such as cable room, circuit breaker room, instrument room, etc. Corresponding electrical components are installed in each room. For example, the cable room has a circuit breaker and isolating knife. There are some functional deficiencies in actual use, and there is room for improvement. For example, in fixed switch cabinets, especially high-voltage fixed switch cabinets, transformers and other components will heat up rapidly during operation. When the temperature rises too fast, it means that there may be a fault in the line or component, and it is necessary to shut down the power for maintenance in time, but the temperature rise is It is a function that is difficult to visually discover from the outside, and it does not have the function of internal temperature monitoring. Secondly, once a fault occurs in the switch cabinet, the probability of electrical fire is very high, and electrical fires burn quickly and are very dangerous. The interval between the staff's discovery and the implementation of fire-fighting measures is long, and the fire is likely to expand and spread. It does not have the function of autonomous fire extinguishing and prevention of spread. In addition, electrical equipment has certain requirements for the dryness of the working environment. During the rainy season in the south, when the air humidity is high, the temperature of the steel cabinet shell itself is low, condensation is easily formed on the surface, and it is easy to cause a short circuit in the line. It does not have the function of internal dehumidification and moisture-proofing.

[0004] Now, a new type of fixed switch cabinet with infrared temperature measurement mechanism is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a fixed switch cabinet with an infrared temperature measuring mechanism to solve the problem of lack of internal temperature monitoring function proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixed switch cabinet with an infrared temperature measuring mechanism, comprising a steel cabinet, a cable chamber is arranged at the bottom of one side of the steel cabinet, a relay instrument chamber is arranged at the top of one side of the steel cabinet, a preparatory function chamber is arranged at the top of the other side of the steel cabinet, a circuit breaker chamber is arranged at the bottom of the other side of the steel cabinet, a grounding knife is installed at the bottom end of one side of the cable chamber, a transformer is installed at the middle position of the other side of the cable chamber, a contact box is arranged below the transformer, an isolating knife is installed at the top of one side of the cable chamber, an opening and closing door is movably hinged on one side of the front end of the steel cabinet, a fire extinguishing agent high-pressure storage tank is fixedly connected to the top of one side of the preparatory function chamber, a shell is fixedly connected to the middle position of one side of the cable chamber, two sets of drawers are plugged into the front end of the shell, and an infrared temperature measuring mechanism is arranged at the front end of the opening and closing door.

[0007] The infrared temperature measuring mechanism includes a liquid crystal display screen, which is fixedly connected to the top of the front end of the opening and closing door, and the bottom of the liquid crystal display screen is fixedly connected to the main housing. An infrared temperature sensor is installed at the middle position of one side of the front end of the opening and closing door, and a smoke sensor is installed at the middle position of the other side of the front end of the opening and closing door.

[0008] Preferably, a lithium battery is disposed inside the main housing, and the position of the infrared temperature sensor corresponds to the position of the transformer.

[0009] Preferably, signal wires are respectively provided between the top of the infrared temperature sensor and the smoke sensor and one side of the main housing, and the infrared temperature sensor, the smoke sensor and the liquid crystal display are electrically connected.

[0010] Preferably, buzzers are fixedly connected to both sides of the bottom of the rear end of the liquid crystal display screen, and the buzzers are symmetrically distributed about the vertical center line of the liquid crystal display screen.

[0011] Preferably, a programmable logic controller is installed on the top of the other side of the interior of the preparatory function room, a fire extinguishing agent conduit is provided at the rear end of the fire extinguishing agent high-pressure storage tank, a solenoid valve is installed at the end of the fire extinguishing agent conduit, a nozzle is provided on one side of the solenoid valve, a control wire is provided between the bottom end of the programmable logic controller and the top end of the solenoid valve, the interiors of the fire extinguishing agent high-pressure storage tank, the fire extinguishing agent conduit and the nozzle are interconnected, and the end of the nozzle extends into the interior of the cable room.

[0012] Preferably, a replenishing valve port is provided in front of the fire extinguishing agent high-pressure storage tank, and a main control panel is installed at the front end of the relay instrument room.

[0013] Preferably, a handle is fixedly connected to the front end of the draw plate, and a plurality of groups of small holes are arranged inside one side of the shell.

[0014] Preferably, a plurality of groups of water-absorbing resin blocks are horizontally placed at the bottom end of the pumping plate, and the water-absorbing resin blocks are arranged at equal intervals.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the fixed switch cabinet with infrared temperature measurement mechanism not only realizes the function of internal temperature monitoring, realizes the function of autonomous fire extinguishing and preventing diffusion, but also realizes the function of internal dehumidification and moisture-proofing;

[0016] (1) The device is provided with an infrared temperature sensor, a main housing, a lithium battery, a smoke sensor, a signal wire, a liquid crystal display and a buzzer. When in use, the isolating knife is used to isolate the high-voltage power supply to ensure safe maintenance of the line and equipment. The grounding knife is usually connected to the high-voltage side of the step-down transformer. When a fault occurs at the receiving end or an internal fault occurs in the transformer, the grounding knife switch automatically closes, causing a ground short circuit fault, forcing the circuit breaker in the circuit breaker room at the power transmission end (upper end) to quickly operate to cut off the fault. The temperature of the transformer itself will rise rapidly during operation. The infrared temperature sensor keeps monitoring it and feeds back the temperature value to the liquid crystal display. When the temperature exceeds the corresponding threshold or fire and smoke occur, the smoke sensor and the infrared temperature sensor synchronously sense the signal and feed it back upward through the signal wire. The buzzer also sounds synchronously to remind the staff to carry out timely maintenance. The lithium battery in the main housing serves as a backup power supply, which can ensure the normal operation of other sensing elements and valve components such as solenoid valves inside the switch cabinet when a circuit fault occurs, thereby realizing the function of internal temperature monitoring.

[0017] (2) By providing a high-pressure fire extinguishing agent storage tank, a replenishing valve port, a programmable logic controller, a control wire, a solenoid valve, a fire extinguishing agent conduit and a nozzle, when a fire accident occurs inside the cabinet, as the sensing signal of the smoke sensor is uploaded, the programmable logic controller controls the solenoid valve to open in real time through the control wire, and the high-pressure fire extinguishing agent in the high-pressure fire extinguishing agent storage tank is sprayed outward along the nozzle at the end of the fire extinguishing agent conduit, quickly extinguishing the fire in the cable room, reducing the probability of fire spreading, and the replenishing valve port facilitates the subsequent replenishment of fire extinguishing agent, thereby realizing the function of autonomous fire extinguishing and preventing spread;

[0018] (3) By providing a shell, a drawer, a water-absorbent resin block and a handle, when in use, in weather with high air humidity, several groups of water-absorbent resin blocks are promptly added to the drawer. The water-absorbent resin blocks with strong water absorption can capture water molecules in the air inside the steel cabinet through the holes on the shell, making the interior of the cabinet dry and reducing the probability of condensation. The staff can regularly pull out the drawer through the handle and replace the water-absorbent resin blocks, thereby achieving the function of internal dehumidification and moisture-proofing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view structural diagram of the opening and closing door of the utility model in an open state;

[0020] Figure 2 This is a front view structural diagram of the opening and closing door of the utility model in a closed state;

[0021] Figure 3 For the utility model Figure 1 A schematic diagram of the enlarged structure of the local section at point A in the middle;

[0022] Figure 4 It is a schematic diagram of an enlarged side view of the shell of the utility model.

[0023] In the figure: 1. Steel cabinet; 2. Cable room; 3. Opening and closing door; 4. Contact box; 5. Transformer; 6. Infrared temperature sensor; 7. Main housing; 8. Lithium battery; 9. Smoke sensor; 10. Signal wire; 11. LCD screen; 12. Buzzer; 13. Relay instrument room; 14. Main control panel; 15. Preparation function room; 16. Fire extinguishing agent high-pressure storage tank; 17. Supplementary valve port; 18. Programmable logic controller; 19. Control wire; 20. Solenoid valve; 21. Fire extinguishing agent conduit; 22. Nozzle; 23. Circuit breaker room; 24. Housing; 25. Drawer; 26. Water-absorbing resin block; 27. Handle; 28. Grounding knife; 29. ​​Isolation knife. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-4 A fixed switch cabinet with an infrared temperature measuring mechanism comprises a steel cabinet 1, a cable chamber 2 is arranged at the bottom of one side of the steel cabinet 1, a relay instrument chamber 13 is arranged at the top of one side of the steel cabinet 1, a preparatory function chamber 15 is arranged at the top of the other side of the steel cabinet 1, a circuit breaker chamber 23 is arranged at the bottom of the other side of the steel cabinet 1, a grounding knife 28 is installed at the bottom end of one side of the cable chamber 2, a transformer 5 is installed at the middle position of the other side of the cable chamber 2, a contact box 4 is arranged below the transformer 5, an isolation knife 29 is installed at the top of one side of the cable chamber 2, an opening and closing door 3 is movably hinged on one side of the front end of the steel cabinet 1, and an infrared temperature measuring mechanism is arranged at the front end of the opening and closing door 3;

[0026] See also Figure 1-4A fixed switch cabinet with an infrared temperature measuring mechanism also includes an infrared temperature measuring mechanism, the infrared temperature measuring mechanism includes a liquid crystal display screen 11, the liquid crystal display screen 11 is fixedly connected to the top of the front end of the opening and closing door 3, the bottom of the liquid crystal display screen 11 is fixedly connected to the main housing 7, an infrared temperature sensor 6 is installed at the middle position of one side of the front end of the opening and closing door 3, and a smoke sensor 9 is installed at the middle position of the other side of the front end of the opening and closing door 3;

[0027] A lithium battery 8 is arranged inside the main housing 7, the position of the infrared temperature sensor 6 corresponds to the position of the transformer 5, a signal wire 10 is arranged between the top of the infrared temperature sensor 6 and the smoke sensor 9 and one side of the main housing 7, the infrared temperature sensor 6, the smoke sensor 9 and the liquid crystal display screen 11 are electrically connected, and buzzers 12 are fixedly connected to both sides of the bottom of the rear end of the liquid crystal display screen 11, and the buzzers 12 are symmetrically distributed about the vertical center line of the liquid crystal display screen 11. The safety of the use of the equipment can be improved by monitoring the temperature;

[0028] Specifically, Figure 1 and Figure 2 As shown, the infrared temperature sensor 6 keeps monitoring the transformer 5 and feeds back the temperature value to the LCD screen 11. When the temperature exceeds the corresponding threshold or fire and smoke occur, the smoke sensor 9 and the infrared temperature sensor 6 synchronously sense the signal and feed it back upward through the signal wire 10. The buzzer 12 simultaneously sounds to remind the staff to repair it in time. The lithium battery 8 in the main housing 7 serves as a backup power supply, which can ensure the normal operation of other sensing elements and valve components such as the solenoid valve 20 inside the switch cabinet when a circuit fails.

[0029] Embodiment 2: A high-pressure fire extinguishing agent storage tank 16 is fixedly connected to the top of one side of the preparatory function room 15, a programmable logic controller 18 is installed on the top of the other side of the preparatory function room 15, a fire extinguishing agent conduit 21 is provided at the rear end of the high-pressure fire extinguishing agent storage tank 16, a solenoid valve 20 is installed at the end of the fire extinguishing agent conduit 21, a nozzle 22 is provided on one side of the solenoid valve 20, a control wire 19 is provided between the bottom end of the programmable logic controller 18 and the top end of the solenoid valve 20, the interiors of the high-pressure fire extinguishing agent storage tank 16, the fire extinguishing agent conduit 21, and the nozzle 22 are connected, the end of the nozzle 22 extends into the interior of the cable room 2, a supplementary valve port 17 is provided in front of the high-pressure fire extinguishing agent storage tank 16, and a main control panel 14 is installed at the front end of the relay instrument room 13, which can intervene in time when an electrical fire occurs to reduce the probability of fire spreading;

[0030] Specifically, Figure 1 and Figure 3As shown, the programmable logic controller 18 controls the electromagnetic valve 20 to open in real time through the control wire 19, and the high-pressure fire extinguishing agent in the high-pressure fire extinguishing agent storage tank 16 is sprayed outward along the nozzle 22 at the end of the fire extinguishing agent conduit 21, so as to quickly extinguish the fire in the cable room 2 and reduce the probability of fire spreading. The replenishing valve port 17 is convenient for the subsequent replenishment of the fire extinguishing agent.

[0031] Embodiment 3: A housing 24 is fixedly connected to the middle position of one side of the cable chamber 2, two sets of drawers 25 are plugged into the front end of the housing 24, a handle 27 is fixedly connected to the front end of the drawer 25, a plurality of small holes are arranged inside one side of the housing 24, a plurality of water-absorbing resin blocks 26 are horizontally placed at the bottom end of the drawer 25, and the water-absorbing resin blocks 26 are arranged at equal intervals, which can ensure the dryness of the cabinet and reduce the probability of short circuit due to moisture;

[0032] Specifically, Figure 1 and Figure 4 As shown, the absorbent resin block 26 with strong water absorption captures water molecules in the air inside the steel cabinet 1 through the holes on the shell 24, making the interior of the cabinet dry and reducing the possibility of condensation. The staff regularly pulls out the drawer 25 through the handle 27 to replace the absorbent resin block 26.

[0033] Working principle: When the utility model is in use, first, the isolation knife 29 is used to isolate the high-voltage power supply to ensure the safe maintenance of the lines and equipment. The grounding knife 28 is usually connected to the high-voltage side of the step-down transformer 5. When a fault occurs at the receiving end or an internal fault occurs in the transformer 5, the grounding knife 28 switch is automatically closed, causing a ground short circuit fault, forcing the circuit breaker in the circuit breaker chamber 23 at the power transmission end (upper end) to quickly operate to cut off the fault. The temperature of the transformer 5 itself will rise rapidly during operation. The infrared temperature sensor 6 keeps monitoring it and feeds back the temperature value to the LCD display 11. When the temperature exceeds the corresponding threshold or fire and smoke occur, the smoke sensor 9 and the infrared temperature sensor 6 synchronously sense the signal and feed it back upward through the signal wire 10. The buzzer 12 synchronously sounds to remind the staff to repair it in time. The lithium battery 8 in the main housing 7 serves as a backup power supply, which can ensure the normal operation of other sensing elements and valve components such as the solenoid valve 20 inside the switch cabinet when a circuit fault occurs. When a fire occurs inside the cabinet, as the induction signal of the smoke sensor 9 is uploaded, the programmable logic controller 18 controls the electromagnetic valve 20 to open in real time through the control wire 19, and the high-pressure fire extinguishing agent in the high-pressure storage tank 16 is sprayed outward along the nozzle 22 at the end of the fire extinguishing agent conduit 21, quickly extinguishing the fire in the cable room 2, reducing the probability of fire spreading, and the replenishment valve 17 is convenient for subsequent replenishment of fire extinguishing agent. In weather with high air humidity, several groups of water-absorbing resin blocks 26 are added in time in the drawer 25. The water-absorbing resin blocks 26 with strong water absorption capture water molecules in the air inside the steel cabinet 1 through the holes on the shell 24, making the interior of the steel cabinet 1 dry and reducing the probability of condensation. The staff regularly pulls out the drawer 25 through the handle 27 to replace the water-absorbing resin blocks 26.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A fixed switch cabinet with an infrared temperature measuring mechanism, comprising a steel cabinet body (1), characterized in that: A cable chamber (2) is provided at the bottom of one side of the steel cabinet (1), a relay instrument chamber (13) is provided at the top of one side of the steel cabinet (1), a preparatory function chamber (15) is provided at the top of the other side of the steel cabinet (1), a circuit breaker chamber (23) is provided at the bottom of the other side of the steel cabinet (1), a grounding knife (28) is installed at the bottom end of one side of the cable chamber (2), a transformer (5) is installed at the middle position of the other side of the cable chamber (2), and the transformer (1) is provided at the bottom of the other side of the cable chamber (2). 5), a contact box (4) is arranged below the cable chamber (2), an isolating knife (29) is installed on the top of one side of the interior of the cable chamber (2), an opening and closing door (3) is movably hinged on one side of the front end of the steel cabinet (1), a high-pressure storage tank (16) for fire extinguishing agent is fixedly connected to the top of one side of the interior of the preparatory function chamber (15), a shell (24) is fixedly connected at the middle position of one side of the cable chamber (2), two sets of drawers (25) are plugged into the front end of the shell (24), and an infrared temperature measuring mechanism is arranged at the front end of the opening and closing door (3); The infrared temperature measuring mechanism comprises a liquid crystal display screen (11), the liquid crystal display screen (11) is fixedly connected to the top of the front end of the opening and closing door (3), the bottom of the liquid crystal display screen (11) is fixedly connected to the main housing (7), an infrared temperature measuring sensor (6) is installed at the middle position of one side of the front end of the opening and closing door (3), and a smoke sensor (9) is installed at the middle position of the other side of the front end of the opening and closing door (3).

2. A fixed switch cabinet with an infrared temperature measurement mechanism according to claim 1, characterized in that: A lithium battery (8) is arranged inside the main housing (7), and the position of the infrared temperature sensor (6) corresponds to the position of the transformer (5).

3. A fixed switch cabinet with an infrared temperature measurement mechanism according to claim 1, characterized in that: Signal wires (10) are respectively arranged between the top ends of the infrared temperature sensor (6) and the smoke sensor (9) and one side of the main housing (7), and the infrared temperature sensor (6), the smoke sensor (9) and the liquid crystal display screen (11) are electrically connected.

4. A fixed switch cabinet with an infrared temperature measurement mechanism according to claim 1, characterized in that: Buzzers (12) are fixedly connected to both sides of the bottom of the rear end of the liquid crystal display screen (11), respectively, and the buzzers (12) are symmetrically distributed about the vertical center line of the liquid crystal display screen (11).

5. The fixed switch cabinet with infrared temperature measurement mechanism according to claim 1, characterized in that: A programmable logic controller (18) is installed at the top of the other side of the interior of the preparatory function room (15); a fire extinguishing agent conduit (21) is provided at the rear end of the fire extinguishing agent high-pressure storage tank (16); a solenoid valve (20) is installed at the end of the fire extinguishing agent conduit (21); a nozzle (22) is provided at one side of the solenoid valve (20); a control wire (19) is provided between the bottom end of the programmable logic controller (18) and the top end of the solenoid valve (20); the interiors of the fire extinguishing agent high-pressure storage tank (16), the fire extinguishing agent conduit (21), and the nozzle (22) are connected; and the end of the nozzle (22) extends into the interior of the cable room (2).

6. The fixed switch cabinet with infrared temperature measurement mechanism according to claim 1, characterized in that: A supplementary valve port (17) is arranged in front of the fire extinguishing agent high-pressure storage tank (16), and a main control panel (14) is installed at the front end of the relay instrument room (13).

7. The fixed switch cabinet with infrared temperature measurement mechanism according to claim 1, characterized in that: A handle (27) is fixedly connected to the front end of the draw plate (25), and a plurality of groups of small holes are arranged inside one side of the housing (24).

8. The fixed switch cabinet with infrared temperature measurement mechanism according to claim 1, characterized in that: A plurality of groups of water-absorbing resin blocks (26) are horizontally placed at the bottom end of the pumping plate (25), and the water-absorbing resin blocks (26) are arranged at equal intervals.

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