Power distribution cabinet with automatic fire extinguishing function

Abstract

The utility model discloses a power distribution cabinet with an automatic fire extinguishing function. The power distribution cabinet comprises a power distribution cabinet main body and a mounting groove. The beneficial effects are that the power distribution cabinet employs the second shunt tube, the third shunt tube, the glass tube and the sleeve, the sleeve and the glass tube are distributed at a plurality of positions in the power distribution cabinet main body, when a fire disaster occurs and power is cut off, high temperature generated by the fire disaster enables diethyl ether liquid in the glass tube to expand, the glass tube is broken, the sleeve loses the plugging of the glass tube, and the power distribution cabinet is safe and reliable. High-pressure heptafluoropropane which is communicated with the interior of the power distribution cabinet main body and is positioned in the heptafluoropropane fire extinguisher enters the first shunting pipe through the discharging pipe, enters the second shunting pipe through the first shunting pipe, and is sprayed out along the sleeve to extinguish fire in the power distribution cabinet main body, so that automatic fire extinguishing is completed under the condition of power failure, the trouble of manual operation is saved, and the working efficiency is improved. And the device can quickly extinguish fire under the conditions of power failure and uninterruptible power supply, so that the fire extinguishing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet with automatic fire extinguishing function. Background Art

[0002] The distribution cabinet (box) is divided into power distribution cabinet (box), lighting distribution cabinet (box) and metering cabinet (box). It is the final equipment of the distribution system. The distribution cabinet is a general term for the motor control center. The distribution cabinet is used in occasions where the load is relatively dispersed and there are fewer circuits. The motor control center is used in occasions where the load is concentrated and there are more circuits. They distribute the electrical energy of a circuit of the upper-level distribution equipment to the nearest load. This level of equipment should provide protection, monitoring and control for the load.

[0003] After searching, it was found that the publication number is CN217036401U, and the name is a distribution cabinet with automatic fire extinguishing function. The application proposed a Chinese patent with the publication number CN212435102U, which proposed a distribution cabinet with automatic fire extinguishing function. Because the fire extinguisher does not have a pressure device when spraying dry powder, the dry powder spraying speed will be too slow or unable to spray. Through the set smoke alarm, when the smoke alarm detects a fire, the smoke alarm will transmit information to the PLC controller, and the PLC controller will start the air pump. The high pressure generated by the air pump will cause the dry powder stored in the powder storage bin to enter the interior of the protective bin through the discharge pipe and spray out through the fire extinguishing port. The fire extinguishing effect is achieved. At the same time, by rotating the movable cone, the movable cone will puncture the airbag when it contacts the airbag, and the dry powder inside the airbag will be sprayed into the interior of the distribution cabinet body through the delivery pipe under the huge pressure of the airbag rupture, thereby achieving the effect of manual fire extinguishing, thereby preventing the fire extinguishing component from failing to work during power outages and the fire from being out of control. However, in actual use, the communication system is prone to malfunction after a fire power outage, and it is impossible to notify the on-duty personnel in time. The movable cone of the application requires manual operation, and the smoke is heavy when a fire occurs. Manual operation has the problems of lag and danger, and it is impossible to perform fire extinguishing operations in time, affecting the convenience and safety of use. Further improvements can be made.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a power distribution cabinet with automatic fire extinguishing, which has the advantages of improving the convenience and safety of use and facilitating maintenance and replacement, thereby solving the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above advantages of improved convenience and safety in use and easy maintenance and replacement, the specific technical solutions adopted by the utility model are as follows:

[0009] A power distribution cabinet with automatic fire extinguishing function, comprising a power distribution cabinet body and a mounting slot, wherein the mounting slot is fixedly mounted on one side surface of the power distribution cabinet body, a heptafluoropropane fire extinguisher is placed inside the mounting slot, and a discharge pipe is connected through the discharge end of the heptafluoropropane fire extinguisher, the discharge pipe extends through and extends into the power distribution cabinet body, and a first shunt pipe is connected through the other end of the discharge pipe, and a second shunt pipe is connected through the surface of the first shunt pipe, a sleeve is connected through the surface of the second shunt pipe, and the top surface of the sleeve is fixedly mounted There is a top frame, and a supporting ring is fixedly installed inside the top opening of the sleeve, a glass tube is installed between the top surface of the supporting ring and the top surface inside the top frame, and ether liquid is contained inside the glass tube, the discharge pipe is connected to the third shunt pipe through a three-way connection, and the third shunt pipe extends to the top of the distribution cabinet body, and a nozzle is connected to the surface of the third shunt pipe, an electromagnetic valve is installed on the surface of the third shunt pipe, a smoke sensor is fixedly installed inside the distribution cabinet body, and the output end of the smoke sensor is electrically connected to the input end of the electromagnetic valve.

[0010] Furthermore, a first sleeve is connected through the surface of the second shunt pipe, and the first sleeve is threadedly connected to the sleeve.

[0011] Furthermore, a second sleeve is connected through the surface of the first shunt pipe, and the second sleeve is threadedly connected to one end of the second shunt pipe.

[0012] Furthermore, the sleeves are distributed in multiple groups at equal intervals along the length direction of the second diverter pipe, and the second diverter pipe is arranged in multiple groups from top to bottom.

[0013] Furthermore, the outer diameter of the glass tube is greater than the inner diameter of the support ring, and the height of the glass tube is equal to the distance between the top surface of the support ring and the inner top surface of the top frame.

[0014] Furthermore, a valve is installed on the surface of the discharge pipe, and the valve is located upstream of the tee.

[0015] Furthermore, there are multiple nozzles arranged, and the nozzles are distributed at equal intervals.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a power distribution cabinet with automatic fire extinguishing, which has the following beneficial effects:

[0018] (1) The utility model adopts a second shunt pipe, a third shunt pipe, a glass tube and a sleeve. The sleeve and the glass tube are distributed at multiple positions inside the main body of the distribution cabinet. When a fire occurs and the power is cut off, the high temperature generated by the fire will cause the ether liquid inside the glass tube to expand, causing the glass tube to rupture, and the sleeve will lose the glass tube seal and penetrate the inside of the main body of the distribution cabinet. The high-pressure heptafluoropropane inside the heptafluoropropane fire extinguisher enters the first shunt pipe through the discharge pipe, enters the second shunt pipe through the first shunt pipe, and is sprayed along the sleeve to extinguish the fire inside the main body of the distribution cabinet, thereby completing automatic fire extinguishing in the case of power failure, eliminating the trouble of manual operation, and improving the convenience and safety of use. At the same time, when a fire occurs but the power is not cut off, the smoke sensor is triggered, the solenoid valve is opened, and the high-pressure heptafluoropropane inside the heptafluoropropane fire extinguisher enters the third shunt pipe through the discharge pipe and is sprayed along the nozzle to extinguish the fire, so that the device can quickly extinguish the fire in the case of power failure or not, thereby improving the fire extinguishing efficiency.

[0019] (2) The utility model adopts a replaceable sleeve and a second shunt tube. The sleeve is threadedly connected to the first sleeve. When the glass tube inside the sleeve is broken, the staff can rotate and remove the sleeve and replace it with a sleeve with a complete glass tube, which is convenient for the staff to inspect and replace, thereby improving the convenience of maintenance and repair. At the same time, the second shunt tube is threadedly connected to the second sleeve, which is convenient for overall replacement, further improving the convenience of maintenance and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the external structure of a power distribution cabinet with automatic fire extinguishing proposed by the utility model;

[0022] Figure 2 It is a schematic diagram of the installation of the nozzle and the glass tube proposed by the utility model;

[0023] Figure 3 It is an enlarged view of node A of a power distribution cabinet with automatic fire extinguishing proposed by the utility model;

[0024] Figure 4 The utility model discloses an internal structure diagram of a power distribution cabinet with automatic fire extinguishing function.

[0025] In the figure:

[0026] 1. Distribution cabinet body; 2. Installation slot; 3. HFC-227ea fire extinguisher; 4. Discharge pipe; 5. First shunt pipe; 6. Second shunt pipe; 7. Third shunt pipe; 8. Nozzle; 9. Solenoid valve; 10. Smoke sensor; 11. Casing; 12. First sleeve; 13. Top frame; 14. Glass tube; 15. Ether liquid; 16. Support ring; 17. Valve; 18. Second sleeve; 19. Tee. DETAILED DESCRIPTION

[0027] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0028] According to an embodiment of the utility model, a power distribution cabinet with automatic fire extinguishing function is provided.

[0029] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4As shown, according to an embodiment of the utility model, a power distribution cabinet with automatic fire extinguishing comprises a power distribution cabinet body 1 and a mounting slot 2, a mounting slot 2 is fixedly mounted on one side surface of the power distribution cabinet body 1, and a heptafluoropropane fire extinguisher 3 is contained in the mounting slot 2, and a discharge end of the heptafluoropropane fire extinguisher 3 is connected with a discharge pipe 4, the discharge pipe 4 extends through and extends into the power distribution cabinet body 1, and a first shunt pipe 5 is connected with the other end of the discharge pipe 4, the first shunt pipe 5 is arranged along the inner side wall of the power distribution cabinet body 1, and a second shunt pipe 6 is connected with the surface of the first shunt pipe 5, and a second shunt pipe 6 is connected with the surface of the second shunt pipe 6. A sleeve 11 is connected to the sleeve 11, and a top frame 13 is fixedly installed on the top surface of the sleeve 11. The top frame 13 protects the glass tube 14 to avoid damage by touch, and a support ring 16 is fixedly installed inside the top of the sleeve 11. The glass tube 14 is installed between the top surface of the support ring 16 and the top surface of the top frame 13, and ether liquid 15 is contained in the glass tube 14. The discharge pipe 4 is connected to the third shunt pipe 7 through a tee 19, and the third shunt pipe 7 extends to the top of the distribution cabinet body 1, and the surface of the third shunt pipe 7 is connected to the nozzle 8, and the surface of the third shunt pipe 7 is installed with an electromagnetic valve 9. The inside of the distribution cabinet body 1 A smoke sensor 10 is fixedly installed on the main body 1, and the output end of the smoke sensor 10 is electrically connected to the input end of the solenoid valve 9. It is a common fire control structure and will not be described in detail here. The sleeve 11 and the glass tube 14 are distributed at multiple positions inside the distribution cabinet body 1. When a fire occurs and the power is cut off, the high temperature generated by the fire will cause the ether liquid 15 inside the glass tube 14 to expand and break the glass tube 14. The sleeve 11 loses the blockage of the glass tube 14 and penetrates the inside of the distribution cabinet body 1. The high-pressure heptafluoropropane inside the heptafluoropropane fire extinguisher 3 enters the first shunt pipe 5 through the discharge pipe 4. The first shunt pipe 5 enters the second shunt pipe 6 and is sprayed along the sleeve 11 to extinguish the fire inside the distribution cabinet body 1, thereby completing automatic fire extinguishing in the case of power failure, eliminating the trouble of manual operation, and improving the convenience and safety of use. At the same time, when a fire occurs but the power is not cut off, the smoke sensor 10 is triggered, the solenoid valve 9 opens, and the high-pressure heptafluoropropane located inside the heptafluoropropane fire extinguisher 3 enters the third shunt pipe 7 through the discharge pipe 4, and is sprayed along the nozzle 8 to extinguish the fire, so that the device can quickly extinguish fires in the case of power failure or non-power failure, thereby improving the fire extinguishing efficiency.

[0030] In one embodiment, a first sleeve 12 is connected through the surface of the second diverter tube 6, and the first sleeve 12 is threadedly connected to the sleeve 11, wherein a second sleeve 18 is connected through the surface of the first diverter tube 5, and the second sleeve 18 is threadedly connected to one end of the second diverter tube 6, and the sleeve 11 is threadedly connected to the first sleeve 12. When the glass tube 14 inside the sleeve 11 is broken, the staff can rotate to remove the sleeve 11 and replace it with the sleeve 11 with a complete glass tube 14, which is convenient for the staff to inspect and replace, thereby improving the convenience of maintenance and repair. At the same time, the second diverter tube 6 is threadedly connected to the second sleeve 18, which is convenient for overall replacement, further improving the convenience of maintenance and repair.

[0031] In one embodiment, multiple groups of sleeves 11 are evenly spaced along the length direction of the second diverter pipe 6, and multiple groups of the second diverter pipe 6 are arranged from top to bottom, thereby expanding the fire extinguishing range and improving the fire extinguishing efficiency.

[0032] In one embodiment, the outer diameter of the glass tube 14 is larger than the inner diameter of the support ring 16, which makes it easier for the glass tube 14 to seal the support ring 16 and improve air tightness. The height of the glass tube 14 is equal to the distance between the top surface of the support ring 16 and the inner top surface of the top frame 13, which makes it easier to fix the glass tube 14.

[0033] In one embodiment, a valve 17 is installed on the surface of the discharge pipe 4, and the valve 17 is located upstream of the tee 19. When the staff replaces the HFC-227ea fire extinguisher 3, the valve 17 can be closed, and after the replacement, the valve 17 can be opened.

[0034] In one embodiment, a plurality of nozzles 8 are arranged, and the nozzles 8 are distributed at equal intervals to improve the fire extinguishing efficiency.

[0035] Working principle:

[0036] The sleeve 11 and the glass tube 14 are distributed at multiple positions inside the power distribution cabinet body 1. When a fire occurs and the power is cut off, the high temperature generated by the fire will cause the ether liquid 15 inside the glass tube 14 to expand, causing the glass tube 14 to rupture. The sleeve 11 loses the blockage of the glass tube 14 and penetrates the inside of the power distribution cabinet body 1. The high-pressure heptafluoropropane in the heptafluoropropane fire extinguisher 3 enters the first shunt pipe 5 through the discharge pipe 4, enters the second shunt pipe 6 through the first shunt pipe 5, and is sprayed along the sleeve 11 to extinguish the fire inside the power distribution cabinet body 1, thereby completing automatic fire extinguishing in the case of power failure, eliminating the trouble of manual operation, and improving the convenience and safety of use. At the same time, when a fire occurs and the power is not cut off, the smoke sensor The device 10 is triggered, the solenoid valve 9 is opened, and the high-pressure heptafluoropropane inside the heptafluoropropane fire extinguisher 3 enters the third shunt pipe 7 through the discharge pipe 4 and is sprayed along the nozzle 8 to extinguish the fire, so that the device can quickly extinguish the fire in the case of power failure or power outage, thereby improving the fire extinguishing efficiency. At the same time, the sleeve 11 is threadedly connected to the first sleeve 12. When the glass tube 14 inside the sleeve 11 is broken, the staff can rotate to remove the sleeve 11 and replace it with the sleeve 11 with a complete glass tube 14, which is convenient for the staff to repair and replace, thereby improving the convenience of maintenance and repair. At the same time, the second shunt pipe 6 is threadedly connected to the second sleeve 18, which is convenient for overall replacement and further improves the convenience of maintenance and repair.

[0037] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power distribution cabinet with automatic fire extinguishing function, characterized in that: The invention comprises a power distribution cabinet body (1) and a mounting groove (2), wherein the mounting groove (2) is fixedly mounted on one side surface of the power distribution cabinet body (1), a heptafluoropropane fire extinguisher (3) is contained in the mounting groove (2), and a discharge pipe (4) is connected through the discharge end of the heptafluoropropane fire extinguisher (3), the discharge pipe (4) extends through the inside of the power distribution cabinet body (1), and a first shunt pipe (5) is connected through the other end of the discharge pipe (4), and a second shunt pipe (6) is connected through the surface of the first shunt pipe (5), a sleeve (11) is connected through the surface of the second shunt pipe (6), and a top frame (13) is fixedly mounted on the top surface of the sleeve (11), and the top of the sleeve (11) is provided with a plurality of brackets (13). A support ring (16) is fixedly installed inside the opening, a glass tube (14) is installed between the top surface of the support ring (16) and the inner top surface of the top frame (13), and ether liquid (15) is contained inside the glass tube (14), the discharge pipe (4) is connected to the third shunt pipe (7) through a tee (19), and the third shunt pipe (7) extends to the top of the distribution cabinet body (1), and the surface of the third shunt pipe (7) is connected to the nozzle (8), and the surface of the third shunt pipe (7) is installed with a solenoid valve (9), and a smoke sensor (10) is fixedly installed inside the distribution cabinet body (1), and the output end of the smoke sensor (10) is electrically connected to the input end of the solenoid valve (9).

2. A power distribution cabinet with automatic fire extinguishing function according to claim 1, characterized in that: A first sleeve (12) is connected through the surface of the second shunt pipe (6), and the first sleeve (12) is threadedly connected to the sleeve (11).

3. A power distribution cabinet with automatic fire extinguishing function according to claim 1, characterized in that: A second sleeve (18) is connected through the surface of the first shunt pipe (5), and the second sleeve (18) is threadedly connected to one end of the second shunt pipe (6).

4. A power distribution cabinet with automatic fire extinguishing function according to claim 1, characterized in that: The sleeves (11) are distributed in multiple groups at equal intervals along the length direction of the second diverter tube (6), and the second diverter tube (6) is arranged in multiple groups from top to bottom.

5. A power distribution cabinet with automatic fire extinguishing function according to claim 1, characterized in that: The outer diameter of the glass tube (14) is greater than the inner diameter of the support ring (16), and the height of the glass tube (14) is equal to the distance between the top surface of the support ring (16) and the inner top surface of the top frame (13).

6. A power distribution cabinet with automatic fire extinguishing function according to claim 1, characterized in that: A valve (17) is installed on the surface of the discharge pipe (4), and the valve (17) is located upstream of the tee (19).

7. A power distribution cabinet with automatic fire extinguishing function according to claim 1, characterized in that: A plurality of the nozzles (8) are arranged, and the nozzles (8) are distributed at equal intervals.

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