Non-stored-pressure perfluorohexanone fire extinguishing device

Abstract

The utility model discloses a non-stored-pressure perfluorohexanone fire extinguishing device which comprises a driver, a shell is arranged below the driver, a fire extinguishing agent cylinder is fixedly installed on the inner side face of the shell, installation holes are formed in the upper side and the lower side of the rear end of the shell, a lower end socket is connected to the bottom end of the fire extinguishing agent cylinder in a sealed mode, and a lower end socket is connected to the lower end socket in a sealed mode. And the top end of the fire extinguishing agent barrel is connected with an upper sealing head in a sealed mode, the fire extinguishing agent barrel is filled with a perfluorohexanone fire extinguishing agent, and a driver is installed on the right side of the top end of the upper sealing head in an embedded mode. The miniature sealing piston is installed at the starting end to replace a traditional rupture disk, the device is started through displacement of the sealing piston, and the situation that the sealing rupture disk in a traditional device is prone to being affected by environmental factors such as temperature and pressure is avoided; and hidden dangers such as leakage possibly caused by rapid rising of the saturated vapor pressure of the perfluorohexanone fire extinguishing agent along with the temperature are avoided, and the safety of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting and extinguishing, in particular to a non-pressure stored perfluorohexanone fire extinguishing device. Background Art

[0002] The non-pressure storage type perfluorohexanone fire extinguishing device is a new type of fire extinguishing device specially designed for fire protection in small spaces and specific spaces. It adopts an integrated, miniaturized design and modular assembly, so that the device can be used as a single set or in multiple sets. Its advantages are small size, high fire extinguishing efficiency, green environmental protection, good insulation, easy installation and no residue after use. The non-pressure storage type perfluorohexanone fire extinguishing device plays an important role in the field of fire protection with its unique advantages. It is an important equipment to ensure the safety of various small spaces and specific spaces.

[0003] The traditional non-pressure storage perfluorohexanone fire extinguishing device has two main characteristics when in use, namely, a bursting disc is installed at the spray port to seal and start the spraying, and a pushing piston is installed in the fire extinguishing agent cylinder to promote the spraying of the fire extinguishing agent. However, the sealing bursting disc is easily affected by environmental factors such as temperature and pressure, and the saturated vapor pressure of perfluorohexanone fire extinguishing agent rises rapidly with temperature, which may cause leakage or other hidden dangers in the equipment. At the same time, the pushing piston lacks a guiding mechanism and there is a risk of getting stuck. Summary of the invention

[0004] The purpose of the utility model is to provide a non-pressure storage perfluorohexanone fire extinguishing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a non-pressurized perfluorohexanone fire extinguishing device, comprising a driver, a shell is provided below the driver, a fire extinguishing agent cylinder is fixedly installed on the inner side surface of the shell, mounting holes are provided on the upper and lower sides of the rear end of the shell, the bottom end of the fire extinguishing agent cylinder is sealed with a lower head, the top end of the fire extinguishing agent cylinder is sealed with an upper head, the interior of the fire extinguishing agent cylinder is filled with perfluorohexanone fire extinguishing agent, a driver is inlaid on the right side of the top end of the upper head, a gas producing cylinder located directly below the driver is inlaid on the right side of the bottom end of the upper head, the gas producing cylinder is located inside the fire extinguishing agent cylinder, a nozzle base is inlaid on the left side of the top end of the upper head, and an atomizing nozzle is installed at the front end of the nozzle base.

[0006] As a further preferred embodiment of the present technical solution, a driving gas cavity is provided between the driver and the gas cylinder, a sealing ring is installed on the outer side of the upper head and the outer side of the sealing ring is in contact with the inner side of the fire extinguishing agent cylinder, and a sealing ring is also installed on the outer side of the lower head and is in contact with the inner side of the fire extinguishing agent cylinder.

[0007] As a further preferred embodiment of the present technical solution, a puncture needle for puncturing the gas-producing cylinder is built into the driver, and the puncture needle is a hollow structure with two rows of micro holes on the needle body, and the gas-producing cylinder is an integrally formed structure and contains high-pressure gas.

[0008] As a further preferred embodiment of the present technical solution, a sealing piston cavity is provided inside the upper head and is located on the left side of the driving gas cavity. The driving gas cavity is connected to the sealing piston cavity through a small hole. A sealing piston is movably sleeved inside the sealing piston cavity. Sealing rings are installed at both ends of the sealing piston. The diameter of the middle of the sealing piston is smaller than the diameter of both ends. The side of the sealing piston cavity close to the gas cylinder is connected to the fire extinguishing agent cylinder.

[0009] As a further preferred embodiment of the present technical solution, a piston limit screw is fixedly installed on one end of the inner side of the sealing piston cavity away from the gas cylinder, a mounting hole is opened on the side of the sealing piston close to the piston limit screw and a piston spring is fixedly installed on the side, and the other end of the piston spring is connected to one side of the piston limit screw.

[0010] As a further preferred embodiment of the present technical solution, the input end of the atomizing nozzle is connected with the sealing piston cavity, a siphon tube is embedded and installed at a position near the left side of the bottom end of the upper head, the bottom end of the siphon tube extends into a position near the bottom end of the fire extinguishing agent cylinder and is connected with the fire extinguishing agent cylinder, and the top end of the siphon tube is connected with the inside of the sealing piston cavity.

[0011] As a further preferred embodiment of the present technical solution, when the piston spring is in the initial state, the end of the sealing piston close to the gas cylinder can block the passage between the sealing piston cavity and the fire extinguishing agent cylinder, and the passage between the fire extinguishing agent cylinder and the atomizing nozzle is blocked, and the elastic force of the piston spring is less than the thrust of the high-pressure gas inside the gas cylinder.

[0012] The utility model provides a non-pressurized perfluorohexanone fire extinguishing device, which has the following beneficial effects:

[0013] (1) The utility model installs a miniature sealing piston at the starting end to replace the traditional bursting disc, and opens the device by the displacement of the sealing piston, thereby avoiding the hidden dangers of the sealed bursting disc inside the traditional device being easily affected by environmental factors such as temperature and pressure, and the possible leakage caused by the rapid increase in the saturated vapor pressure of perfluorohexanone fire extinguishing agent with temperature, thereby improving the safety of the device.

[0014] (2) The utility model abandons the traditional mode of using a piston as a driving mechanism and adopts a siphon mode instead, thereby avoiding the risk of the traditional piston driving mechanism being easily stuck. The utility model generates high-pressure gas through the internal gas cylinder to drive the sealing piston to move, and simultaneously opens the channel between the fire extinguishing agent cylinder and the atomizing nozzle and the channel between the fire extinguishing agent cylinder and the driving gas chamber, so that the high-pressure gas can drive the perfluorohexanone fire extinguishing agent to be ejected through the siphon tube and the atomizing nozzle to achieve the purpose of rapid fire extinguishing, thereby improving the ease of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the internal structure of the shell and the fire extinguishing agent cylinder of the utility model;

[0017] Figure 3 It is a three-dimensional cross-sectional schematic diagram of the local structure of the utility model;

[0018] Figure 4 It is a three-dimensional cross-sectional schematic diagram of the lower head structure of the utility model;

[0019] Figure 5 It is a three-dimensional cross-sectional schematic diagram of the upper head structure of the utility model;

[0020] Figure 6 It is a cross-sectional schematic diagram of the overall structure of the utility model;

[0021] Figure 7 It is a cross-sectional schematic diagram of the local structure of the top end of the utility model;

[0022] Figure 8 This is a schematic diagram of the assembly state of the upper head and the sealing piston of the utility model.

[0023] In the figure: 1. driver; 2. upper end cap; 3. driving gas cavity; 4. gas cylinder; 5. outer shell; 6. fire extinguishing agent cylinder; 7. lower end cap; 8. nozzle base; 9. atomizing nozzle; 10. sealing piston; 11. piston limit screw; 12. piston spring; 13. sealing piston cavity; 14. siphon. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] The utility model provides a technical solution: Figures 1 to 8As shown, in this embodiment, the non-pressurized perfluorohexanone fire extinguishing device includes a driver 1, a shell 5 is provided below the driver 1, a fire extinguishing agent cylinder 6 is fixedly installed on the inner side of the shell 5, mounting holes are provided on the upper and lower sides of the rear end of the shell 5, the bottom end of the fire extinguishing agent cylinder 6 is sealed with a lower head 7, the top end of the fire extinguishing agent cylinder 6 is sealed with an upper head 2, the interior of the fire extinguishing agent cylinder 6 is filled with perfluorohexanone fire extinguishing agent, the driver 1 is inlaid on the right side of the top end of the upper head 2, and a gas producing cylinder 4 located directly below the driver 1 is inlaid on the right side of the bottom end of the upper head 2, and the gas producing cylinder 4 is located inside the fire extinguishing agent cylinder 6, a nozzle base 8 is inlaid on the left side of the top end of the upper head 2, and an atomizing nozzle 9 is installed at the front end of the nozzle base 8.

[0026] The mounting hole at the rear end of the housing 5 can be used with fixing bolts or a bracket to conveniently mount the device in an area that needs to be protected.

[0027] like Figure 3 and Figure 6 as well as Figure 7 and Figure 8 As shown, a driving gas cavity 3 is provided between the driver 1 and the gas cylinder 4, a sealing ring is installed on the outer side of the upper head 2 and the outer side of the sealing ring contacts the inner side of the fire extinguishing agent cylinder 6, and a sealing ring is also installed on the outer side of the lower head 7 and contacts the inner side of the fire extinguishing agent cylinder 6.

[0028] The upper sealing head 2 is a main component, which is used for sealing the upper end of the fire extinguishing agent cylinder 6 and for installation between various structures.

[0029] like Figure 3 and Figure 6 As shown, the driver 1 has a built-in puncture needle for puncturing the gas cylinder 4, and the puncture needle is a hollow structure with two rows of micro holes on the needle body. The gas cylinder 4 is an integrally formed structure and contains high-pressure gas.

[0030] The puncture needle inside the driver 1 is driven by an electric ignition head or a thermistor wire. The puncture needle is a hollow structure with two rows of micro holes on the needle body for the rapid release of high-pressure gas. When started, the driver 1 pushes the puncture needle to puncture the gas cylinder 4, and the high-pressure gas in the gas cylinder 4 quickly escapes through the small holes on the puncture needle.

[0031] When in use, the gas cylinder 4 is punctured by the puncture needle of the driver 1 to open the blockage of the gas cylinder 4, and the high-pressure gas quickly escapes to the driving gas cavity 3 along the hole on the puncture needle.

[0032] like Figure 3 and Figure 6 as well as Figure 7 and Figure 8As shown, a sealing piston cavity 13 is provided inside the upper head 2 and is located on the left side of the driving gas cavity 3. The driving gas cavity 3 is connected to the sealing piston cavity 13 through a small hole. A sealing piston 10 is movably sleeved inside the sealing piston cavity 13. Sealing rings are installed at both ends of the sealing piston 10, and the middle of the sealing piston 10 is smaller than the diameter of the two ends. The side of the sealing piston cavity 13 close to the gas cylinder 4 is connected to the fire extinguishing agent cylinder 6.

[0033] The sealing piston cavity 13 is used to connect the driving gas cavity 3 and the fire extinguishing agent cylinder 6 and the atomizing nozzle 9.

[0034] like Figure 3 and Figure 7 as well as Figure 8 As shown, a piston limit screw 11 is fixedly installed on one end of the inner side of the sealing piston cavity 13 away from the gas cylinder 4, and a mounting hole is opened on the side of the sealing piston 10 close to the piston limit screw 11 and a piston spring 12 is fixedly installed thereon, and the other end of the piston spring 12 is connected to one side of the piston limit screw 11.

[0035] The high-pressure gas can push the sealing piston 10 to move to the position of the piston limit top screw 11 through the small hole, so that the high-pressure gas enters the fire extinguishing agent cylinder 6 through the sealing piston cavity 13, and simultaneously opens the channel between the fire extinguishing agent cylinder 6 and the atomizing nozzle 9, wherein the sealing piston 10 is a key component, and the function of the sealing piston 10 is to block and connect the fire extinguishing agent cylinder 6 and the driving gas cavity 3, and to block and connect the fire extinguishing agent cylinder 6 and the atomizing nozzle 9.

[0036] The piston spring 12 is used to press against the sealing piston 10 in a normal state to prevent the sealing piston 10 from being displaced due to vibration or other reasons.

[0037] The piston limit screw 11 can resist the piston spring 12 under normal conditions, so that the sealing piston 10 will not be displaced due to severe collisions, etc., and the moving distance of the sealing piston 10 is limited in the starting state to ensure the normal starting of the fire extinguishing equipment.

[0038] like Figure 3 and Figure 7 as well as Figure 8 As shown, the input end of the atomizing nozzle 9 is connected to the sealing piston cavity 13, and a siphon tube 14 is embedded and installed at a position near the left side of the bottom end of the upper head 2. The bottom end of the siphon tube 14 extends into a position near the bottom end of the fire extinguishing agent cylinder 6 and is connected to the fire extinguishing agent cylinder 6. The top end of the siphon tube 14 is connected to the inside of the sealing piston cavity 13.

[0039] The siphon 14 is used to transport the fire extinguishing agent to the atomizing nozzle 9, and the atomizing nozzle 9 can evenly atomize the liquid perfluorohexanone fire extinguishing agent to ensure the fire extinguishing effect.

[0040] like Figure 7 and Figure 8 As shown, when the piston spring 12 is in the initial state, the end of the sealing piston 10 close to the gas cylinder 4 can block the passage between the sealing piston cavity 13 and the fire extinguishing agent cylinder 6, and the passage between the fire extinguishing agent cylinder 6 and the atomizing nozzle 9 is blocked, and the elastic force of the piston spring 12 is less than the thrust of the high-pressure gas inside the gas cylinder 4.

[0041] The elastic force of the piston spring 12 is smaller than the thrust of the high-pressure gas inside the gas cylinder 4, which ensures that the sealing piston 10 can be smoothly pushed to the predetermined position when starting.

[0042] The utility model provides a non-pressure storage perfluorohexanone fire extinguishing device, and the specific working principle is as follows:

[0043] When it is necessary to extinguish the fire, that is, to start the fire, the driver 1 can be turned on so that the electric ignition head or thermistor inside it can drive the puncture needle to move downward. At this time, the puncture needle can puncture the gas cylinder 4, and the high-pressure gas inside the gas cylinder 4 quickly escapes through the small hole on the puncture needle and enters the interior of the driving gas cavity 3. With the entry of the high-pressure gas, the high-pressure gas can push the sealing piston 10 to move through the small hole. At this time, the piston spring 12 is compressed. When the sealing piston 10 moves to the position of the piston limit top screw 11, the high-pressure gas enters the interior of the fire extinguishing agent cylinder 6 through the sealing piston cavity 13, and simultaneously opens the channel between the fire extinguishing agent cylinder 6 and the atomizing nozzle 9. After the channel is opened, under the action of the high-pressure gas, the fire extinguishing agent inside the fire extinguishing agent cylinder 6 enters the interior of the siphon 14, and enters the interior of the atomizing nozzle 9 through the siphon 14, and is evenly atomized and sprayed to the fire area through the atomizing nozzle 9 to realize the fire extinguishing function.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-pressurized perfluorohexanone fire extinguishing device, comprising a driver (1), characterized in that: A housing (5) is provided below the driver (1), and a fire extinguishing agent cylinder (6) is fixedly mounted on the inner side surface of the housing (5). Mounting holes are provided on both upper and lower sides of the rear end of the housing (5). The bottom end of the fire extinguishing agent cylinder (6) is sealed with a lower end cap (7), and the top end of the fire extinguishing agent cylinder (6) is sealed with an upper end cap (2). The interior of the fire extinguishing agent cylinder (6) is filled with perfluorohexanone fire extinguishing agent. The driver (1) is embedded and mounted on the right side of the top end of the upper end cap (2). A gas producing cylinder (4) located directly below the driver (1) is embedded and mounted on the right side of the bottom end of the upper end cap (2). The gas producing cylinder (4) is located inside the fire extinguishing agent cylinder (6). A nozzle base (8) is embedded and mounted on the left side of the top end of the upper end cap (2), and an atomizing nozzle (9) is mounted on the front end of the nozzle base (8).

2. The non-pressurized perfluorohexanone fire extinguishing device according to claim 1, characterized in that: A driving gas chamber (3) is provided between the driver (1) and the gas cylinder (4); a sealing ring is installed on the outer side surface of the upper end cap (2) and the outer side surface of the sealing ring contacts the inner side surface of the fire extinguishing agent cylinder (6); and a sealing ring is also installed on the outer side surface of the lower end cap (7) and contacts the inner side surface of the fire extinguishing agent cylinder (6).

3. The non-pressurized perfluorohexanone fire extinguishing device according to claim 1 is characterized in that: The driver (1) has a built-in puncture needle for puncturing the gas-generating cylinder (4), and the puncture needle is a hollow structure with two rows of micro holes formed on the needle body. The gas-generating cylinder (4) is an integrally formed structure and contains high-pressure gas.

4. The non-pressurized perfluorohexanone fire extinguishing device according to claim 2 is characterized in that: The upper end cap (2) is provided with a sealing piston cavity (13) located on the left side of the driving gas cavity (3); the driving gas cavity (3) is connected to the sealing piston cavity (13) through a small hole; a sealing piston (10) is movably sleeved inside the sealing piston cavity (13); sealing rings are installed at both ends of the sealing piston (10); the diameter of the middle of the sealing piston (10) is smaller than the diameter of both ends; and the side of the sealing piston cavity (13) close to the gas cylinder (4) is connected to the fire extinguishing agent cylinder (6).

5. The non-pressurized perfluorohexanone fire extinguishing device according to claim 4 is characterized in that: A piston limit screw (11) is fixedly mounted on one end of the inner side of the sealing piston cavity (13) away from the gas cylinder (4); a mounting hole is provided on a side of the sealing piston (10) close to the piston limit screw (11) and a piston spring (12) is fixedly mounted thereon; the other end of the piston spring (12) is connected to one side of the piston limit screw (11).

6. The non-pressurized perfluorohexanone fire extinguishing device according to claim 4, characterized in that: The input end of the atomizing nozzle (9) is in communication with the sealing piston cavity (13); a siphon tube (14) is embedded and installed at a position near the left side of the bottom end of the upper sealing head (2); the bottom end of the siphon tube (14) extends into a position near the bottom end of the fire extinguishing agent cylinder (6) and is in communication with the fire extinguishing agent cylinder (6); the top end of the siphon tube (14) is in communication with the inside of the sealing piston cavity (13).

7. The non-pressurized perfluorohexanone fire extinguishing device according to claim 5, characterized in that: When the piston spring (12) is in an initial state, the end of the sealing piston (10) close to the gas cylinder (4) can block the passage between the sealing piston cavity (13) and the fire extinguishing agent cylinder (6), and the passage between the fire extinguishing agent cylinder (6) and the atomizing nozzle (9) is blocked, and the elastic force of the piston spring (12) is smaller than the thrust of the high-pressure gas inside the gas cylinder (4).

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