High-voltage switch cabinet for extinguishing fire in closed oxygen isolation mode

Abstract

The utility model is suitable for the technical field of high-voltage switch cabinets, and provides a high-voltage switch cabinet for extinguishing fire by adopting a closed oxygen isolation mode, which comprises a high-voltage switch cabinet body and a heat dissipation port arranged at one side of the high-voltage switch cabinet body, the dustproof net is assembled in the heat dissipation opening; the fire detector is arranged in the high-voltage switch cabinet body; the carbon dioxide storage tank and the water-ring vacuum pump are arranged above the high-voltage switch cabinet body, and the output end of the water-ring vacuum pump is connected with the carbon dioxide storage tank. According to the scheme, the high-voltage switch cabinet for extinguishing fire in the closed oxygen isolation mode has the advantages that fire extinguishing treatment is carried out on a fire source in the high-voltage switch cabinet body in an oxygen isolation mode, the fire extinguishing efficiency is high, meanwhile, flames are restrained or extinguished by isolating oxygen, the fire behavior can be effectively controlled, and damage of the fire to equipment and property is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-voltage switch cabinets, and in particular relates to a high-voltage switch cabinet which adopts a closed oxygen-isolating method to extinguish fire. Background Art

[0002] High-voltage switchgear refers to the switchgear used for power generation, transmission, distribution, power conversion and consumption in the power system. It plays the role of switching, control or protection. High-voltage switchgear is divided into several categories according to the voltage level of 3.6kV ~ 550kV electrical products, high-voltage disconnectors and grounding switches, high-voltage load switches, high-voltage automatic reclosing and sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof distribution devices and high-voltage switchgear.

[0003] At present, when a switch short-circuit inside a high-voltage switch cabinet causes a fire, people are unable to discover and deal with it in time. The ventilation and cooling fan mechanism in the burning high-voltage switch cabinet continuously adds oxygen to the inside of the high-voltage switch cabinet, thereby fueling the fire in the high-voltage switch cabinet, resulting in a serious fire. The existing high-voltage switch cabinet cannot perform automatic fire extinguishing, which can easily lead to further spread of the fire and low safety of use. Utility Model Content

[0004] The utility model provides a high-voltage switch cabinet which adopts a closed oxygen-isolating method to extinguish fire, aiming to solve the technical problem that the high-voltage switch cabinet proposed in the above background technology cannot realize autonomous fire extinguishing.

[0005] To solve the above problems, the utility model is implemented as follows: a high-voltage switch cabinet that adopts a closed oxygen-isolating method to extinguish fire, comprising: a high-voltage switch cabinet body and a heat dissipation port opened on one side of the high-voltage switch cabinet body; a dustproof net installed in the heat dissipation port; a fire detector installed in the high-voltage switch cabinet body; a carbon dioxide storage tank and a water ring vacuum pump arranged above the high-voltage switch cabinet body, the output end of the water ring vacuum pump being connected to the carbon dioxide storage tank; an exhaust pipe fixedly installed on the top of the inner wall of the high-voltage switch cabinet body, the exhaust pipe being connected to the output end of the water ring vacuum pump; and a sealing mechanism arranged on the high-voltage switch cabinet body for sealing the heat dissipation port.

[0006] Preferably, the sealing mechanism includes: a connection box fixedly mounted on one side of the high-voltage switch cabinet body; a bidirectional screw rotatably mounted in the connection box; a group of sliders threadedly sleeved on the bidirectional screw; a group of sealing plates respectively slidably mounted on a group of the sliders, and a group of the sealing plates all pass through the connection box; a motor fixedly mounted on the top of the connection box, and the output shaft of the motor is fixedly connected to the bidirectional screw.

[0007] Preferably, a heat insulation board is fixedly installed on the top of the high-voltage switch cabinet body, a placement rack is installed on the top of the heat insulation board, the placement rack is adapted to the carbon dioxide storage tank, the heat insulation board is fixedly connected to the water ring vacuum pump, a protection box is installed on the top of the heat insulation board, and the protection box is snapped onto the carbon dioxide storage tank and the water ring vacuum pump.

[0008] Preferably, a temperature sensor is installed in the high-voltage switch cabinet body, a support plate is installed on one side of the inner wall of the high-voltage switch cabinet body, a mounting frame is detachably installed on the bottom of the support plate, and a cooling fan is installed in the mounting frame.

[0009] Preferably, a sealing ring is installed on one side of the high-voltage switch cabinet body, the sealing ring is in sliding contact with the sealing plate, and the sealing ring is made of silicone material.

[0010] Preferably, an electric telescopic rod is fixedly mounted on one side of the high-voltage switch cabinet body, the electric telescopic rod is located on one side of the heat dissipation port, a pressure plate is fixedly mounted on the electric telescopic rod, and the pressure plate is in sliding contact with the sealing plate.

[0011] Preferably, an operation opening is provided on one side of the protective box, and a box door is hinged in the operation opening.

[0012] Compared with the related art, the high-voltage switch cabinet provided by the utility model adopts the closed oxygen-isolating method to extinguish fire, which has the following beneficial effects:

[0013] The fire source in the high-voltage switch cabinet body is extinguished by isolating oxygen, and the fire extinguishing efficiency is relatively fast. At the same time, the flame is suppressed or extinguished by isolating oxygen, which can effectively control the fire and reduce the damage to equipment and property caused by the fire. The heat dissipation port is sealed by a sealing mechanism to ensure that oxygen does not enter the high-voltage switch cabinet body, which is convenient for oxygen isolation and fire extinguishing operations on the fire source in the high-voltage switch cabinet body. The sealing plate is pressed by a pressing plate so that the sealing plate fits tightly with the sealing ring, thereby ensuring that external oxygen does not enter the high-voltage switch cabinet body and improving the sealing performance of the sealing plate to the heat dissipation port.

[0014] Compared with the prior art, the high-voltage switchgear provided by the present invention adopts a closed oxygen-isolating fire extinguishing method, which extinguishes the fire source in the high-voltage switchgear body by isolating oxygen, and has a relatively fast fire extinguishing efficiency. At the same time, the flame is suppressed or extinguished by isolating oxygen, which can effectively control the fire and reduce the damage to equipment and property caused by the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main cross-sectional structure of a high-voltage switch cabinet provided by the utility model that adopts a closed oxygen-isolating method to extinguish fire;

[0016] Figure 2 This is a schematic diagram of the main structure of a high-voltage switch cabinet that adopts a closed oxygen-isolating method to extinguish fires provided by the utility model;

[0017] Figure 3 It is a side view structural schematic diagram of a high-voltage switch cabinet that adopts a closed oxygen-isolating method to extinguish fire provided by the utility model;

[0018] Figure 4 This is an assembly diagram of the medium pressure plate and the sealing plate provided by the utility model;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the connection box provided by the utility model;

[0020] Figure 6 for Figure 1 Schematic diagram of the enlarged structure of part A shown in FIG.

[0021] Figure numerals: 1. High-voltage switch cabinet body; 2. Heat dissipation port; 3. Dustproof net; 4. Fire detector; 5. Carbon dioxide storage tank; 6. Water ring vacuum pump; 7. Exhaust pipe; 8. Connection box; 9. Bidirectional screw; 10. Slider; 11. Sealing plate; 12. Motor; 13. Heat insulation board; 14. Protection box; 15. Temperature sensor; 16. Mounting frame; 17. Cooling fan; 18. Sealing ring; 19. Electric telescopic rod; 20. Pressure plate. DETAILED DESCRIPTION

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" in the specification and claims of the present application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present application or the above-mentioned figures are used to distinguish different objects, rather than to describe a specific order; the terms "inside", "outside", "left", and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] The utility model provides a high-voltage switch cabinet that uses a closed oxygen-isolating method to extinguish fire, such as Figure 1-6 As shown, the high-voltage switch cabinet adopting the closed oxygen-isolating method for fire extinguishing comprises: a high-voltage switch cabinet body 1 and a heat dissipation port 2 opened on one side of the high-voltage switch cabinet body 1; a dustproof net 3 installed in the heat dissipation port 2; a fire detector 4 installed in the high-voltage switch cabinet body 1; a carbon dioxide storage tank 5 and a water ring vacuum pump 6 arranged above the high-voltage switch cabinet body 1, and the output end of the water ring vacuum pump 6 is connected to the carbon dioxide storage tank 5; an exhaust pipe 7 fixedly installed on the top of the inner wall of the high-voltage switch cabinet body 1, and the exhaust pipe 7 is connected to the output end of the water ring vacuum pump 6; and a sealing mechanism provided on the high-voltage switch cabinet body 1 for sealing the heat dissipation port 2.

[0025] In this embodiment, when the high-voltage switch cabinet body 1 is in use, the fire detector 4 monitors the high-voltage switch cabinet body 1. When an electrical component in the high-voltage switch cabinet body 1 is short-circuited, thereby causing a fire, the fire detector 4 detects smoke and transmits a signal to an external control device, causing the external control device to drive the sealing mechanism to operate, so that the sealing mechanism seals the heat dissipation port 2. Then, the valve on the carbon dioxide storage tank 5 is started, and the water ring vacuum pump 6 is started at the same time to draw the carbon dioxide liquid in the carbon dioxide storage tank 5 into the exhaust pipe 7. The carbon dioxide liquid is quickly vaporized at normal temperature and pressure, thereby reducing the oxygen in the high-voltage switch cabinet body 1, so that the fire source is extinguished in a closed and oxygen-isolated manner. The fire extinguishing efficiency is relatively fast. At the same time, the flame is suppressed or extinguished by isolating oxygen, which can effectively control the fire and reduce the damage to equipment and property caused by the fire.

[0026] In a further preferred embodiment of the utility model, the sealing mechanism includes: a connection box 8 fixedly installed on one side of the high-voltage switch cabinet body 1; a bidirectional screw 9 rotatably installed in the connection box 8; a group of sliders 10 all threadedly sleeved on the bidirectional screw 9; a group of sealing plates 11 respectively slidably installed on a group of the sliders 10, and a group of the sealing plates 11 all pass through the connection box 8; a motor 12 fixedly installed on the top of the connection box 8, and the output shaft of the motor 12 is fixedly connected to the bidirectional screw 9.

[0027] In this embodiment, when the heat dissipation port 2 needs to be sealed, the motor 12 is first started so that the output shaft of the motor 12 drives the bidirectional screw 9 to rotate, so that the bidirectional screw 9 drives a group of sliders 10 to slide close to each other, and then the slider 10 drives the sealing plate 11 to slide along one side of the high-voltage switch cabinet body 1, so that a group of sealing plates 11 seals the heat dissipation port 2, and the operation is relatively quick.

[0028] In a further preferred embodiment of the utility model, a heat insulation board 13 is fixedly installed on the top of the high-voltage switch cabinet body 1, and a placement rack is installed on the top of the heat insulation board 13, and the placement rack is adapted to the carbon dioxide storage tank 5. The heat insulation board 13 is fixedly connected to the water ring vacuum pump 6, and a protective box 14 is installed on the top of the heat insulation board 13, and the protective box 14 is buckled on the carbon dioxide storage tank 5 and the water ring vacuum pump 6.

[0029] In this embodiment, the heat on the high-voltage switch cabinet body 1 is insulated by the insulation board 13, which is beneficial to the storage of the carbon dioxide storage tank 5. The carbon dioxide storage tank 5 and the water ring vacuum pump 6 are protected by the protection box 14 to ensure the safety of the carbon dioxide storage tank 5, which is beneficial to subsequent use.

[0030] In a further preferred embodiment of the utility model, a temperature sensor 15 is installed in the high-voltage switch cabinet body 1, a support plate is installed on one side of the inner wall of the high-voltage switch cabinet body 1, a mounting frame 16 is detachably installed at the bottom of the support plate, and a cooling fan 17 is installed in the mounting frame 16.

[0031] In this embodiment, when the high-voltage switch cabinet body 1 is in use, the temperature sensor 15 monitors the temperature inside the high-voltage switch cabinet body 1. When the temperature inside the high-voltage switch cabinet body 1 reaches a certain value, the cooling fan 17 is automatically turned on, and then the cooling fan 17 performs heat dissipation and cooling treatment on the equipment in the high-voltage switch cabinet body 1, and the heat dissipation is relatively fast.

[0032] In a further preferred embodiment of the present invention, a sealing ring 18 is installed on one side of the high-voltage switch cabinet body 1, and the sealing ring 18 is in sliding contact with the sealing plate 11, and the material of the sealing ring 18 is silicone.

[0033] In this embodiment, the sealing ring 18 is in close contact with the sealing plate 11, thereby ensuring that external oxygen does not enter the high-voltage switch cabinet body 1, which is beneficial to oxygen-isolating fire extinguishing operations on the fire source in the high-voltage switch cabinet body 1, and the sealing effect is better.

[0034] In a further preferred embodiment of the utility model, an electric telescopic rod 19 is fixedly installed on one side of the high-voltage switch cabinet body 1, and the electric telescopic rod 19 is located on one side of the heat dissipation port 2. A pressure plate 20 is fixedly installed on the electric telescopic rod 19, and the pressure plate 20 is in sliding contact with the sealing plate 11.

[0035] In this embodiment, when the sealing plate 11 seals the heat dissipation port 2, the electric telescopic rod 19 is started, so that the electric telescopic rod 19 drives the pressing plate 20 to slide, so that the pressing plate 20 presses the sealing plate 11, and at the same time, the sealing plate 11 slides along the slider 10, so that the sealing plate 11 is in close contact with the sealing ring 18, thereby ensuring that external oxygen does not enter the high-voltage switch cabinet body 1, and improving the sealing performance of the sealing plate 11 to the heat dissipation port 2.

[0036] In a further preferred embodiment of the present invention, an operation opening is provided on one side of the protection box 14, and a box door is hinged in the operation opening.

[0037] In this embodiment, the provision of the box door makes it convenient for people to regularly check the storage status of the carbon dioxide storage tank 5 .

[0038] In summary, compared with the relevant technology, the present device extinguishes the fire source in the high-voltage switch cabinet body 1 by isolating oxygen, and the fire extinguishing efficiency is relatively fast. At the same time, by isolating oxygen to suppress or extinguish the flame, it can effectively control the fire and reduce the damage of the fire to equipment and property.

[0039] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0040] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A high-voltage switch cabinet that uses a closed oxygen-isolated fire extinguishing method, characterized in that: include: A high-voltage switch cabinet body and a heat dissipation port provided on one side of the high-voltage switch cabinet body; A dust screen installed in the heat dissipation port; A fire detector installed in the high-voltage switch cabinet body; A carbon dioxide storage tank and a water ring vacuum pump are arranged above the high-voltage switch cabinet body, and the output end of the water ring vacuum pump is connected to the carbon dioxide storage tank; An exhaust pipe fixedly mounted on the top of the inner wall of the high-voltage switch cabinet body, the exhaust pipe being connected to the output end of the water ring vacuum pump; A sealing mechanism is provided on the high voltage switch cabinet body and is used to seal the heat dissipation opening.

2. The high-voltage switch cabinet adopting the closed oxygen-isolating fire extinguishing method as claimed in claim 1 is characterized in that: The sealing mechanism comprises: A connection box fixedly mounted on one side of the high-voltage switch cabinet body; Rotating a bidirectional screw installed in the connection box; A group of sliders threadedly sleeved on the bidirectional screw; A group of sealing plates respectively slidably mounted on a group of the sliding blocks, wherein the group of sealing plates all penetrate the connection box; A motor is fixedly mounted on the top of the connection box, and an output shaft of the motor is fixedly connected to the bidirectional screw.

3. The high-voltage switch cabinet adopting the closed oxygen-isolating fire extinguishing method as claimed in claim 1 is characterized in that: A heat insulation board is fixedly installed on the top of the high-voltage switch cabinet body, a placement rack is installed on the top of the heat insulation board, the placement rack is adapted to the carbon dioxide storage tank, the heat insulation board is fixedly connected to the water ring vacuum pump, a protection box is installed on the top of the heat insulation board, and the protection box is buckled onto the carbon dioxide storage tank and the water ring vacuum pump.

4. The high-voltage switch cabinet adopting the closed oxygen-isolating fire extinguishing method as claimed in claim 1 is characterized in that: A temperature sensor is installed in the body of the high-voltage switch cabinet. A support plate is installed on one side of the inner wall of the body of the high-voltage switch cabinet. A mounting frame is detachably installed at the bottom of the support plate. A cooling fan is installed in the mounting frame.

5. The high-voltage switch cabinet adopting the closed oxygen-isolating fire extinguishing method as claimed in claim 2 is characterized in that: A sealing ring is installed on one side of the high-voltage switch cabinet body, the sealing ring is in sliding contact with the sealing plate, and the sealing ring is made of silicone material.

6. The high-voltage switch cabinet adopting the closed oxygen-isolating fire extinguishing method as claimed in claim 2 is characterized in that: An electric telescopic rod is fixedly mounted on one side of the high-voltage switch cabinet body, the electric telescopic rod is located on one side of the heat dissipation port, a pressing plate is fixedly mounted on the electric telescopic rod, and the pressing plate is in sliding contact with the sealing plate.

7. The high-voltage switch cabinet adopting the closed oxygen-isolating fire extinguishing method as claimed in claim 3 is characterized in that: An operation opening is provided on one side of the protection box, and a box door is hinged in the operation opening.

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