Gas fire extinguishing device for power distribution cabinet

Abstract

The utility model relates to the field of power distribution cabinets, in particular to a gas fire extinguishing device for a power distribution cabinet, which comprises a mounting shell and a U-shaped plate, the bottom of an inner cavity of the mounting shell is connected with a base through bolts, an inner cavity of the base is provided with a heptafluoropropane storage tank, and the top of the heptafluoropropane storage tank is fixedly communicated with a connecting valve. Through cooperation of the driving motor, the connecting ring, the spraying head, the hollow plate and the rotating rod, the power distribution cabinet fire extinguishing device has the advantage of rotating spraying fire extinguishing, the driving motor drives the rotating rod to rotate, the connecting ring can drive the hollow plate to rotate, the spraying angle of the spraying head is adjusted, fire extinguishing substances can be fully sprayed into the power distribution cabinet, and fire extinguishing efficiency is improved. Therefore, fire can be extinguished in the power distribution cabinet more effectively, and the fire extinguishing effect is improved. And through cooperation of an air suction pipe, an air suction shell, a fan, an air suction cover, a first electric telescopic rod, a cleaning brush and an activated carbon net plate, the device has the advantage that smoke can be sucked and purified.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution cabinets, in particular to a gas fire extinguishing device for power distribution cabinets. Background Art

[0002] The distribution cabinet is the final equipment of the power distribution system, which is mainly divided into power distribution cabinet, lighting distribution cabinet and metering cabinet. The distribution cabinet is used in the occasions with dispersed load and fewer circuits, while the motor control center is used in the occasions with concentrated load and more circuits. Short circuit and fire are prone to occur when the distribution cabinet is in use, so a gas fire extinguishing device is needed to extinguish the fire in the distribution cabinet.

[0003] After searching, the patent number is CN220585739U, and the name is a utility model of emergency fire extinguishing equipment for a distribution cabinet, including a distribution cabinet. Through research and analysis, it is found that although the perfluorohexanone fire extinguisher bottle can be quickly removed from the fixed block, which is very convenient and practical, there are still the following disadvantages to a certain extent.

[0004] For example, because it does not have the function of rotating spraying to extinguish fire during use, the fire extinguishing material stored in the bottle cannot be fully sprayed into the distribution cabinet during fire extinguishing, which reduces the effect of fire extinguishing. In addition, it does not have the function of absorbing and purifying smoke. Therefore, after the fire in the distribution cabinet is extinguished, a large amount of smoke will remain inside the distribution cabinet, which can be easily inhaled by the staff after opening it, affecting the health of the staff. In order to solve the above technical problems, we have designed a gas fire extinguishing device for distribution cabinets. Utility Model Content

[0005] The utility model aims to provide a gas fire extinguishing device for a power distribution cabinet, which has the advantages of rotating spraying fire extinguishing and being able to absorb and purify smoke, thereby solving the problems of not having rotating spraying fire extinguishing and not having the ability to absorb and purify smoke.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas fire extinguishing device for a power distribution cabinet, comprising a mounting shell and a U-shaped plate, the bottom of the inner cavity of the mounting shell is connected to a base by bolts, the inner cavity of the base is provided with a heptafluoropropane storage tank, the top of the heptafluoropropane storage tank is fixedly connected to a connecting valve, the top of the connecting valve is fixedly connected to a telescopic hose, a rotating assembly is installed on the surface of the U-shaped plate, and an air suction assembly is installed at the bottom of the mounting shell.

[0007] Preferably, the air intake assembly includes an air intake shell, the top of the air intake shell is fixedly connected to the bottom of the mounting shell by bolts, the top of the U-shaped plate is penetrated by an air intake hood, the front of the air intake shell is fixedly connected with an air intake pipe, the end of the air intake pipe away from the air intake shell is fixedly connected to the top of the air intake hood, the right side of the air intake shell is connected with a mounting plate by bolts, the back side of the mounting plate is connected with a fan by bolts, the air inlet end of the fan is fixedly connected to the right side of the air intake shell, the inner cavity of the air intake shell is connected with an activated carbon mesh plate by bolts, and the left side of the air intake shell is penetrated by a first electric telescopic rod.

[0008] Preferably, the right end of the first electric telescopic rod is connected to a cleaning brush via bolts, a drop hole is provided at the bottom of the air suction shell, and the bottom of the air suction shell is connected to a collecting shell via bolts.

[0009] Preferably, the rotating assembly includes a driving motor, the right side of the driving motor is fixedly connected to the left side of the U-shaped plate by bolts, the right end of the driving motor shaft passes through the inner cavity of the U-shaped plate and is connected to a rotating rod by bolts, a connecting ring is fixed on the surface of the rotating rod, the bottom end of the connecting ring is connected to a hollow plate by bolts, and the end of the telescopic hose away from the connecting valve is fixedly connected to the front side of the hollow plate.

[0010] Preferably, a spray head is installed at the bottom of the hollow plate, and the right end of the rotating rod is movably connected to the right side of the inner cavity of the U-shaped plate through a bearing.

[0011] Preferably, the right side of the U-shaped plate is connected to the smoke sensor by bolts, and second electric telescopic rods are provided through both left and right sides of the mounting shell, and one end of the second electric telescopic rod is connected to a clamping plate by bolts.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model has the advantage of rotating spraying fire extinguishing by cooperating with a driving motor, a connecting ring, a spray head, a hollow plate and a rotating rod. The driving motor drives the rotating rod to rotate, so that the connecting ring can drive the hollow plate to rotate, thereby adjusting the spray angle of the spray head, so that the fire extinguishing material can be fully sprayed into the distribution cabinet, so that the fire in the distribution cabinet can be extinguished more effectively, thereby improving the fire extinguishing effect.

[0014] 2. The utility model has the advantage of being able to absorb and purify smoke by cooperating with the suction pipe, the suction shell, the fan, the suction hood, the first electric telescopic rod, the cleaning brush and the activated carbon mesh plate. After extinguishing the fire, the suction hood generates suction through the fan, and the smoke inside the distribution cabinet is absorbed through the suction pipe, so that the smoke can enter the suction shell, and the smoke can be filtered through the activated carbon mesh plate to filter out harmful substances. At the same time, the cleaning brush is driven to move by the first electric telescopic rod to clean the surface of the activated carbon mesh plate to prevent the surface of the activated carbon mesh plate from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a partial bottom-up three-dimensional structural schematic diagram of the utility model;

[0017] Figure 3 It is a partial front view three-dimensional structure schematic diagram of the utility model;

[0018] Figure 4 It is a schematic diagram of a partially cutaway three-dimensional structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the sectional three-dimensional structure of the utility model.

[0020] In the figure: 1. Mounting shell; 2. HFC-227ea storage tank; 3. Intake assembly; 301. Intake pipe; 302. Intake shell; 303. Fan; 304. Intake hood; 305. First electric telescopic rod; 306. Cleaning brush; 307. Activated carbon mesh; 4. Mounting plate; 5. Base; 6. Second electric telescopic rod; 7. Clamping plate; 8. Rotating assembly; 801. Drive motor; 802. Connecting ring; 803. Spray head; 804. Hollow plate; 805. Rotating rod; 9. Smoke sensor; 10. U-shaped plate; 11. Telescopic hose; 12. Connecting valve; 13. Collecting shell. DETAILED DESCRIPTION

[0021] See also Figure 1-Figure 5 A gas fire extinguishing device for a power distribution cabinet comprises a mounting shell 1 and a U-shaped plate 10. The bottom of the inner cavity of the mounting shell 1 is connected with a base 5 by bolts. The inner cavity of the base 5 is provided with a heptafluoropropane storage tank 2. The top of the heptafluoropropane storage tank 2 is fixedly connected with a connecting valve 12. The top of the connecting valve 12 is fixedly connected with a telescopic hose 11. A rotating component 8 is installed on the surface of the U-shaped plate 10. An air suction component 3 is installed at the bottom of the mounting shell 1. By setting the base 5, the heptafluoropropane storage tank 2 can be positioned so that the heptafluoropropane storage tank 2 will not move in the mounting shell 1.

[0022] See also Figure 1 and Figure 4 The air intake assembly 3 includes an air intake shell 302, the top of the air intake shell 302 is fixedly connected to the bottom of the mounting shell 1 by bolts, an air intake cover 304 is provided through the top of the U-shaped plate 10, an air intake pipe 301 is fixedly connected to the front of the air intake shell 302, and one end of the air intake pipe 301 away from the air intake shell 302 is fixedly connected to the top of the air intake cover 304, the right side of the air intake shell 302 is connected to the mounting plate 4 by bolts, the back side of the mounting plate 4 is connected to the fan 303 by bolts, the air inlet end of the fan 303 is fixedly connected to the right side of the air intake shell 302, the inner cavity of the air intake shell 302 is connected to the activated carbon mesh plate 307 by bolts, and the left side of the air intake shell 302 is provided with a first electric telescopic rod 305;

[0023] See also Figure 1 and Figure 4 The right end of the first electric telescopic rod 305 is connected with a cleaning brush 306 by bolts, a drop hole is provided at the bottom of the air suction shell 302, and a collecting shell 13 is connected with the bottom of the air suction shell 302 by bolts. By setting the collecting shell 13, the dust swept by the cleaning brush 306 can be collected, which is convenient for centralized cleaning;

[0024] See also Figure 1 and Figure 2 The rotating assembly 8 includes a driving motor 801, the right side of the driving motor 801 is fixedly connected to the left side of the U-shaped plate 10 by bolts, the right end of the rotating shaft of the driving motor 801 penetrates the inner cavity of the U-shaped plate 10 and is connected to a rotating rod 805 by bolts, a connecting ring 802 is fixedly sleeved on the surface of the rotating rod 805, the bottom end of the connecting ring 802 is connected to a hollow plate 804 by bolts, and one end of the telescopic hose 11 away from the connecting valve 12 is fixedly connected to the front of the hollow plate 804;

[0025] See also Figure 1 and Figure 2 , a spray head 803 is installed at the bottom of the hollow plate 804, and the right end of the rotating rod 805 is movably connected to the right side of the inner cavity of the U-shaped plate 10 through a bearing;

[0026] See also Figure 1 and Figure 3 The right side of the U-shaped plate 10 is connected to the smoke sensor 9 by bolts, and the left and right sides of the mounting shell 1 are penetrated by a second electric telescopic rod 6, and one end of the second electric telescopic rod 6 is connected to a clamping plate 7 by bolts. By setting the second electric telescopic rod 6, the clamping plate 7 can be moved so that the clamping plate 7 can be clamped on the HFC-227ea storage tank 2, thereby ensuring the stability of the HFC-227ea storage tank 2.

[0027] When in use, an external controller and power supply are installed on the distribution cabinet, and the distribution cabinet is monitored through the smoke sensor 9. When smoke is detected, the connecting valve 12 is opened to allow HFC-227ea to be sprayed into the hollow plate 804 through the telescopic hose 11, and finally sprayed out through the spray head 803. At the same time, the rotation shaft of the driving motor 801 drives the rotating rod 805 to rotate, so that the connecting ring 802 can drive the hollow plate 804 to rotate, thereby adjusting the spraying angle of the spray head 803, so that HFC-227ea can be better sprayed into the distribution cabinet. HFC-227ea absorbs a lot of heat when spraying, and quickly turns into gas, which reduces the temperature at the fire scene. This physical property makes Heptafluoropropane can quickly control the flame and prevent the fire from spreading. At the same time, heptafluoropropane will undergo thermal decomposition in a high temperature environment to produce fluorine-containing free radicals. These free radicals will chemically react with the active free radicals in the flame to generate a chain reaction of harmless substances that interrupt the combustion, thereby extinguishing the distribution cabinet. After the fire is extinguished, the fan 303 is operated to allow the suction hood 304 to generate suction to absorb the gas in the distribution cabinet, allowing the gas to enter the suction shell 302, filter it through the activated carbon mesh plate 307, filter out the harmful substances therein, and finally discharge it through the air outlet of the fan 303, preventing harmful gases from remaining inside the distribution cabinet after the staff opens it, thereby protecting the staff.

[0028] In summary: the gas fire extinguishing device for the power distribution cabinet, through the cooperation of the driving motor 801, the connecting ring 802, the spray head 803, the hollow plate 804, the rotating rod 805, the suction pipe 301, the suction shell 302, the fan 303, the suction hood 304, the first electric telescopic rod 305, the cleaning brush 306 and the activated carbon mesh plate 307, solves the problems of not having the function of rotating spraying for fire extinguishing and not having the function of absorbing and purifying the smoke.

Claims

1. A gas fire extinguishing device for a power distribution cabinet, comprising a mounting shell (1) and a U-shaped plate (10), characterized in that: The bottom of the inner cavity of the installation shell (1) is connected to a base (5) by bolts, the inner cavity of the base (5) is provided with a heptafluoropropane storage tank (2), the top of the heptafluoropropane storage tank (2) is fixedly connected to a connecting valve (12), the top of the connecting valve (12) is fixedly connected to a telescopic hose (11), a rotating component (8) is installed on the surface of the U-shaped plate (10), and an air suction component (3) is installed at the bottom of the installation shell (1).

2. A gas fire extinguishing device for a power distribution cabinet according to claim 1, characterized in that: The air intake assembly (3) comprises an air intake shell (302), the top of the air intake shell (302) is fixedly connected to the bottom of the mounting shell (1) by bolts, an air intake hood (304) is provided through the top of the U-shaped plate (10), an air intake pipe (301) is fixedly connected to the front of the air intake shell (302), one end of the air intake pipe (301) away from the air intake shell (302) is fixedly connected to the top of the air intake hood (304), the right side of the air intake shell (302) is connected to the mounting plate (4) by bolts, the back side of the mounting plate (4) is connected to the fan (303) by bolts, the air inlet end of the fan (303) is fixedly connected to the right side of the air intake shell (302), the inner cavity of the air intake shell (302) is connected to the activated carbon mesh plate (307) by bolts, and the left side of the air intake shell (302) is provided with a first electric telescopic rod (305).

3. A gas fire extinguishing device for a power distribution cabinet according to claim 2, characterized in that: The right end of the first electric telescopic rod (305) is connected to a cleaning brush (306) via bolts, a material drop hole is provided at the bottom of the air suction shell (302), and the bottom of the air suction shell (302) is connected to a collection shell (13) via bolts.

4. A gas fire extinguishing device for a power distribution cabinet according to claim 1, characterized in that: The rotating assembly (8) comprises a driving motor (801), the right side of the driving motor (801) being fixedly connected to the left side of the U-shaped plate (10) by means of bolts, the right end of the rotating shaft of the driving motor (801) passing through the inner cavity of the U-shaped plate (10) and being connected to a rotating rod (805) by means of bolts, a connecting ring (802) being fixedly sleeved on the surface of the rotating rod (805), the bottom end of the connecting ring (802) being connected to a hollow plate (804) by means of bolts, and the end of the telescopic hose (11) away from the connecting valve (12) being fixedly connected to the front side of the hollow plate (804).

5. A gas fire extinguishing device for a power distribution cabinet according to claim 4, characterized in that: A spray head (803) is installed at the bottom of the hollow plate (804), and the right end of the rotating rod (805) is movably connected to the right side of the inner cavity of the U-shaped plate (10) through a bearing.

6. A gas fire extinguishing device for a power distribution cabinet according to claim 1, characterized in that: The right side of the U-shaped plate (10) is connected to a smoke sensor (9) via bolts, and second electric telescopic rods (6) are provided through both left and right sides of the mounting shell (1), and one end of the second electric telescopic rod (6) is connected to a clamping plate (7) via bolts.

Images