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CN118178918A - Miniature multifunctional gas cylinder - Google Patents

Miniature multifunctional gas cylinder Download PDF

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Publication number
CN118178918A
CN118178918A CN202410376743.2A CN202410376743A CN118178918A CN 118178918 A CN118178918 A CN 118178918A CN 202410376743 A CN202410376743 A CN 202410376743A CN 118178918 A CN118178918 A CN 118178918A
Authority
CN
China
Prior art keywords
fire extinguishing
extinguishing agent
gas cylinder
temperature
heat conduction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202410376743.2A
Other languages
Chinese (zh)
Inventor
张禹海
鲁竟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chinese People's Police University International Law Enforcement Cooperation College Of Ministry Of Public Security Chinese Peacekeeping Police Training Center
Original Assignee
Chinese People's Police University International Law Enforcement Cooperation College Of Ministry Of Public Security Chinese Peacekeeping Police Training Center
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chinese People's Police University International Law Enforcement Cooperation College Of Ministry Of Public Security Chinese Peacekeeping Police Training Center filed Critical Chinese People's Police University International Law Enforcement Cooperation College Of Ministry Of Public Security Chinese Peacekeeping Police Training Center
Priority to CN202410376743.2A priority Critical patent/CN118178918A/en
Publication of CN118178918A publication Critical patent/CN118178918A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C31/00Delivery of fire-extinguishing material
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C31/00Delivery of fire-extinguishing material
    • A62C31/28Accessories for delivery devices, e.g. supports
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C37/00Control of fire-fighting equipment
    • A62C37/08Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10Releasing means, e.g. electrically released
    • A62C37/11Releasing means, e.g. electrically released heat-sensitive

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The invention discloses a miniature multifunctional gas cylinder, which relates to the technical field of fire extinguishers and comprises a fire extinguishing agent tank, an exhaust pipe and an automatic temperature-sensing exhaust valve, wherein the exhaust pipe is communicated with a gas outlet of at least one fire extinguishing agent tank through the automatic temperature-sensing exhaust valve, and the automatic temperature-sensing exhaust valve can open a channel between the fire extinguishing agent tank and the exhaust pipe at a set temperature. The miniature multifunctional gas cylinder can be placed in a precise instrument for use, and can effectively sense the external temperature through the automatic temperature-sensing exhaust valve and automatically open a fire extinguishing passage, so that the fire extinguishing gas is rapidly released, and the fire extinguishing effect is achieved.

Description

Miniature multifunctional gas cylinder
Technical Field
The invention relates to the technical field of fire extinguishers, in particular to a miniature multifunctional gas cylinder.
Background
With the increasing fire threat in household appliances and industrial electronics, not only is the fire loss of residential appliances rising year by year, but also the industry and automotive industries are facing higher fire risks. Most of daily life is caused by short circuit, electric leakage, overload and other reasons of electrical equipment; some sites such as big data centers, computer rooms, distribution rooms, cultural relics archives, engine cabins of aviation and ships, etc. are not suitable for fire extinguishing agents with large secondary pollution. These fire events not only cause significant damage to the person's property, but can also lead to casualties and life safety threats. On the one hand, fire usually happens unknowingly, and a fire source cannot be extinguished in time; on the other hand, the gas fire extinguishing agents such as traditional halons, heptafluoropropanes and hexafluoropropane are more and more strictly limited to use, so that the volume of the existing pressure fire extinguisher products on the market is generally large, the pressure fire extinguisher products are difficult to install, and the application range is narrow.
Therefore, there is a need to design a fire extinguishing apparatus that can be used reliably, quickly and simply in a protected space.
Disclosure of Invention
The invention aims to provide a miniature multifunctional gas cylinder so as to solve the problems in the prior art, effectively sense the external temperature and automatically open a fire extinguishing passage when a fire disaster occurs, and realize quick response and use in a protective precision instrument.
In order to achieve the above object, the present invention provides the following solutions:
The invention provides a miniature multifunctional gas cylinder which comprises a fire extinguishing agent tank, an exhaust pipe and an automatic temperature-sensing exhaust valve, wherein the exhaust pipe is communicated with a gas outlet of at least one fire extinguishing agent tank through the automatic temperature-sensing exhaust valve, the automatic temperature-sensing exhaust valve can open a channel between the fire extinguishing agent tank and the exhaust pipe at a set temperature, one fire extinguishing agent is arranged in each fire extinguishing agent tank, and when the number of the fire extinguishing agent tanks is more than 1, at least two types of fire extinguishing agents are arranged.
Preferably, the automatic temperature-sensing exhaust valve comprises a heat conduction shell and a temperature-sensing element, wherein the heat conduction shell is a cylindrical part, the temperature-sensing element is detachably arranged in the heat conduction shell, and the temperature-sensing element and the cross section of the heat conduction shell are arranged in parallel and can seal the cross section of the heat conduction shell.
Preferably, the temperature sensing element is a fusible alloy sheet, the thickness of the fusible alloy sheet is 1mm-3mm, the material of the fusible alloy sheet is a die alloy, and the melting point is 70-80 ℃.
Preferably, the heat conduction shell comprises two symmetrically arranged flange joints, one end of each flange joint is a pipeline joint, the other end of each flange joint is a flange end cover, the two flanges of the flange end covers are connected through bolts, gaskets are arranged on the bolts, a groove is formed in each flange end cover, the two symmetrically arranged grooves can be spliced into a containing groove, fusible alloy sheets are arranged in the containing grooves, and the grooves are communicated with the pipeline joints.
Preferably, sealing rings are arranged at the bottoms of the two grooves and between the two flanges, and the sealing rings in the grooves are respectively positioned at two sides of the fusible alloy sheet; the flange joint is made of copper.
Preferably, the pipeline joint is welded or in threaded sealing connection with the air outlet of the fire extinguishing agent tank, and the flange end cover is in threaded sealing connection with the exhaust pipe.
Preferably, the exhaust pipe is a straight pipe, and two ends of the exhaust pipe are respectively connected with the fire extinguishing agent tank through the automatic temperature sensing exhaust valve.
Preferably, four exhaust holes are uniformly distributed in the circumferential direction of the exhaust pipe, the exhaust holes are conical holes with small inside and large outside, and the diameter of the small holes of the conical holes is 3mm.
Preferably, the fire extinguishing agent tanks are made of stainless steel, at least one of the fire extinguishing agent tanks contains a liquid fire extinguishing agent layer of perfluoroethanone and a pressurized nitrogen gas layer, and at least one of the fire extinguishing agent tanks contains liquefied carbon dioxide; the diameter of the fire extinguishing agent tank is 20mm-30mm, and the length is 40mm-50mm.
Preferably, the tail of the fire extinguishing agent tank is provided with a pressurizing port, a hollow plug is arranged on the pressurizing port, and a rubber plug is arranged in the plug in a sealing manner.
Compared with the prior art, the invention has the following technical effects:
the miniature multifunctional gas cylinder can be placed in a precise instrument for use, and can effectively sense the external temperature through the automatic temperature-sensing exhaust valve and automatically open a fire extinguishing passage, so that the fire extinguishing gas is rapidly released, and the fire extinguishing effect is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a micro multifunctional gas cylinder according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an exhaust pipe and an automatic temperature-sensing exhaust valve according to an embodiment of the present invention;
FIG. 3 is a schematic view of a flange joint according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating an internal structure at A in FIG. 1 according to an embodiment of the present invention;
Wherein: the fire extinguishing agent tank is 1-, the flange joint is 2-, the bolt is 3-, the groove is 4-, the temperature sensing element is 5-, the sealing ring is 6-, the exhaust pipe is 7-, the exhaust hole is 8-, the air outlet is 9-, the pressurizing port is 10-, the sealing plug is 11-, and the rubber plug is 12-.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art based on the embodiments of the invention without any inventive effort, are intended to fall within the scope of the invention.
The invention aims to provide a miniature multifunctional gas cylinder to solve the problems in the prior art, so that the miniature multifunctional gas cylinder can effectively sense the external temperature and automatically open a fire extinguishing passage when a fire disaster occurs, has quick response and can be used in a protective precision instrument.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1 to 4: the embodiment provides a miniature multifunctional gas cylinder, including fire extinguishing agent jar 1, blast pipe 7 and automatic temperature sensing discharge valve, blast pipe 7 is through automatic temperature sensing discharge valve and the gas outlet 9 intercommunication of at least one fire extinguishing agent jar 1, and automatic temperature sensing discharge valve can open the passageway of fire extinguishing agent jar 1 and blast pipe 7 at the settlement temperature, is provided with a fire extinguishing agent in every fire extinguishing agent jar 1, and when the quantity of fire extinguishing agent jar 1 is greater than 1, the kind of fire extinguishing agent is provided with two kinds at least. Can realize the multifunctional fire extinguishment of gas coverage suffocation type fire extinguishment and liquid gasification cooling fire extinguishment in the fire extinguishment process.
As a preferred scheme, the automatic temperature-sensing exhaust valve in this embodiment includes a heat conduction shell and a temperature-sensing element 5, the heat conduction shell is a tubular component, the temperature-sensing element 5 is detachably arranged in the heat conduction shell, the temperature-sensing element 5 is parallel to the cross section of the heat conduction shell and can seal the cross section of the heat conduction shell, the air outlet 9 of the fire extinguishing agent tank 1 is sealed by the temperature-sensing element 5, heat in the surrounding environment is transferred to the temperature-sensing element 5, and after reaching the melting point of the temperature-sensing element 5, the temperature-sensing element 5 can be melted and the fire extinguishing agent tank 1 can be opened for fire extinguishing.
As a preferable scheme, in the embodiment, the temperature sensing element 5 is a fusible alloy sheet, the thickness of the fusible alloy sheet is between 1mm and 3mm, the material of the fusible alloy sheet is a die alloy, the fusible alloy sheet is a low-melting-point alloy which is generally made of elements such as bismuth, lead, tin, cadmium and the like, the melting point is 70-80 ℃, and the fusible alloy sheet with the melting point of about 40 ℃ can be used according to the environmental requirement.
The starting temperature (melting point) of the fusible alloy in this example was about 79 ℃. The temperature sensing element 5 may be selected from a temperature sensing glass bulb and a fusible alloy. At lower storage temperatures, fusible alloys are recommended; when the storage temperature is higher, the temperature-sensing glass bubbles are recommended to be used, and when the temperature reaches a certain temperature, the organic liquid in the temperature-sensing glass bubbles expands, and the temperature-sensing glass bubbles are ruptured, so that the fire extinguishing is realized.
As a preferred scheme, the heat conduction shell in this embodiment includes two symmetrical flange joints 2 that set up, and the one end that the flange joint 2 is the pipeline joint, the other end is the flange end cover, and the flange of two flange end covers passes through bolt 3 to be connected, is provided with the gasket on the bolt 3, is provided with a recess 4 in the flange end cover, and the recess 4 that two symmetries set up can splice into a holding tank, is provided with fusible alloy piece in the holding tank, recess 4 and pipeline joint intercommunication. When a fire disaster occurs, the fusible alloy is melted by the temperature rise, so that the height between the fusible alloy and the sleeve is reduced, and the hook plate falls off without a fulcrum, thereby realizing fire extinguishment.
Preferably, sealing rings 6 are arranged at the bottoms of the two grooves 4 and between the two flanges, and the sealing rings 6 in the grooves 4 are respectively positioned at two sides of the fusible alloy sheet; the flange joint 2 is made of copper, so that the heat transfer is fast, and the temperature sensing element 5 is heated fast and responds fast.
As a preferable scheme, in the embodiment, the pipeline joint is welded or in threaded sealing connection with the air outlet 9 of the fire extinguishing agent tank 1, and the flange end cover is in threaded sealing connection with the exhaust pipe 7, so that the disassembly and the replacement of accessories are facilitated.
As a preferred scheme, in this embodiment, the exhaust pipe 7 is a straight pipe, and two ends are respectively connected with a fire extinguishing agent tank 1 through an automatic temperature sensing exhaust valve, and the two fire extinguishing agent tanks 1 are simultaneously sprayed, so that the fire extinguishing space with the spraying speed can be increased.
As a preferable scheme, four exhaust holes 8 are uniformly distributed in the circumferential direction of the exhaust pipe 7 in the embodiment, the exhaust holes 8 are conical holes with small inside and large outside, and the diameter of the small holes of the conical holes is 3mm, so that the injection speed and the injection quantity can meet the design requirements.
As a preferable scheme, in this embodiment, the fire extinguishing agent tank 1 is made of stainless steel, and at least one fire extinguishing agent tank 1 contains a liquid fire extinguishing agent layer of perfluoroethanone and a pressurized nitrogen gas layer, and at least one fire extinguishing agent tank 1 contains liquefied carbon dioxide; if only one extinguishing agent tank 1 is provided, the liquid of the perfluoroethanone can be changed into the liquid of carbon dioxide, the liquid state inerting speed of the carbon dioxide is high, the cooling effect is obvious, and a great amount of heat can be absorbed when the liquid carbon dioxide is evaporated with good explosion suppression effect; when two or more fire extinguishing agent tanks 1 are provided, one fire extinguishing agent tank 1 can be filled with perfluorinated hexanone and nitrogen, and one fire extinguishing agent tank 1 can be filled with carbon dioxide, so that the fire extinguishing agent tank can extinguish fire by covering the fire extinguishing agent tank with gas and can extinguish fire by liquid gasification and cooling, thereby realizing multifunctional fire extinguishing. The fire extinguishing agent tank 1 has a diameter of 20mm-30mm, a length of 40mm-50mm and a small volume. The perfluoro-hexanone is clear, colorless and odorless liquid and pressurized nitrogen at normal temperature, is super-pressurized by the nitrogen, is stored in a high-pressure gas cylinder as a part of a fire extinguishing system, is easy to vaporize and exists in a gaseous state, achieves the fire extinguishing effect by means of heat absorption, is a famous and environment-friendly fire extinguishing agent, and has the properties of high boiling point, good electrical insulation performance, low surface tension, good chemical stability and the like; the perfluorinated hexanone fire extinguishing agent is efficient, strong in initiative, clean, safe, environment-friendly, free of corrosion to precise elements, free of pollution to human bodies and environment, and suitable for fire protection places which cannot be subjected to secondary pollution after being put out and extinguished by other fire extinguishing agents. Nitrogen is colorless, odorless, nontoxic, corrosion-free, spontaneous combustion-free and combustion-free gas. The fire-extinguishing agent has the advantages of high fire-extinguishing speed, fire prevention, fire extinguishment, gas explosion inhibition, no environmental pollution, no electromechanical equipment and the like.
As a preferable scheme, in this embodiment, the tail of the fire extinguishing agent tank 1 is provided with a pressurizing port 10, a hollow plug 11 is arranged on the pressurizing port 10, and a rubber plug 12 is arranged in the hollow of the plug 11 in a sealing manner. In the embodiment, the needle tube can be used for penetrating the rubber plug 12 to inject pressurized nitrogen, the air tightness of the fire extinguishing agent tank 1 can not be damaged after the needle tube is pulled out, and the pressurization is more convenient. If the fire extinguishing agent tank 1 is filled with perfluorinated hexanone, the tank needs to be filled with certain nitrogen gas through internal storage; if liquid carbon dioxide is contained in the fire extinguishing agent tank 1, pressurization can be directly realized by compressing carbon dioxide gas, and pressurization by gas is not needed.
The amount of fire extinguishing agent in this example can be calculated using equation (1):
wherein W is a fire extinguishing design amount or an inerting design amount (kg);
C 1 -fire-extinguishing or inerting design concentration (%);
S-specific volume (m 3/kg) of superheated steam of fire extinguishing agent at 101kPa atmospheric pressure and minimum ambient temperature in the protection zone;
v-the net volume of the guard area in cubic meters (m 3);
K is altitude correction coefficient, which can be selected according to altitude.
Wherein, specific volume S of the superheated steam of the fire extinguishing agent under the atmospheric pressure of 101kPa and the lowest environmental temperature of the protection zone can be calculated according to the formula (2):
S=K1+K2T (2)
where K 1=0.0664,K2 =0.000274, t is the lowest ambient temperature.
The principles and embodiments of the present invention have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present invention and its core ideas; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.

Claims (10)

1. A miniature multifunctional gas cylinder is characterized in that: including fire extinguishing agent jar, blast pipe and automatic temperature sensing discharge valve, the blast pipe passes through automatic temperature sensing discharge valve with at least one the gas outlet intercommunication of fire extinguishing agent jar, automatic temperature sensing discharge valve can be opened at the settlement temperature the fire extinguishing agent jar with the passageway of blast pipe, every be provided with a fire extinguishing agent in the fire extinguishing agent jar, just when the quantity of fire extinguishing agent jar is greater than 1, the kind of fire extinguishing agent is provided with two kinds at least.
2. The miniature multi-function gas cylinder of claim 1, wherein: the automatic temperature-sensing exhaust valve comprises a heat conduction shell and a temperature-sensing element, wherein the heat conduction shell is a cylindrical part, the temperature-sensing element is detachably arranged in the heat conduction shell, and the temperature-sensing element and the cross section of the heat conduction shell are arranged in parallel and can seal the cross section of the heat conduction shell.
3. The miniature multi-function gas cylinder of claim 2, wherein: the temperature sensing element is a fusible alloy sheet, the thickness of the fusible alloy sheet is 1mm-3mm, the fusible alloy sheet is made of die alloy, and the melting point is 70-80 ℃.
4. The miniature multi-function gas cylinder of claim 2, wherein: the heat conduction shell comprises two symmetrically arranged flange joints, one end of each flange joint is a pipeline joint, the other end of each flange joint is a flange end cover, the flanges of the two flange end covers are connected through bolts, gaskets are arranged on the bolts, a groove is formed in each flange end cover, the grooves which are symmetrically arranged can be spliced into a containing groove, fusible alloy sheets are arranged in the containing grooves, and the grooves are communicated with the pipeline joints.
5. The miniature multi-function gas cylinder of claim 4, wherein: sealing rings are arranged at the bottoms of the two grooves and between the two flanges, and the sealing rings in the grooves are respectively positioned at two sides of the fusible alloy sheet; the flange joint is made of copper.
6. The miniature multi-function gas cylinder of claim 4, wherein: the pipeline joint is welded or in threaded sealing connection with the air outlet of the fire extinguishing agent tank, and the flange end cover is in threaded sealing connection with the exhaust pipe.
7. The miniature multi-function gas cylinder of claim 1, wherein: the exhaust pipe is a straight pipe, and two ends of the exhaust pipe are respectively connected with the fire extinguishing agent tank through the automatic temperature sensing exhaust valve.
8. The miniature multi-function gas cylinder of claim 7, wherein: four exhaust holes are uniformly distributed in the circumferential direction of the exhaust pipe, the exhaust holes are conical holes with small inside and large outside, and the diameter of small holes of the conical holes is 3mm.
9. The miniature multi-function gas cylinder of claim 1, wherein: the fire extinguishing agent tanks are made of stainless steel, at least one of the fire extinguishing agent tanks contains a liquid fire extinguishing agent layer of perfluoroethanone and a pressurized nitrogen gas layer, and at least one of the fire extinguishing agent tanks contains liquefied carbon dioxide; the diameter of the fire extinguishing agent tank is 20mm-30mm, and the length is 40mm-50mm.
10. The miniature multi-function gas cylinder of claim 1, wherein: the tail of the fire extinguishing agent tank is provided with a pressurizing port, a hollow plug is arranged on the pressurizing port, and a rubber plug is arranged in the plug in a sealing manner.
CN202410376743.2A 2024-03-29 2024-03-29 Miniature multifunctional gas cylinder Pending CN118178918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410376743.2A CN118178918A (en) 2024-03-29 2024-03-29 Miniature multifunctional gas cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410376743.2A CN118178918A (en) 2024-03-29 2024-03-29 Miniature multifunctional gas cylinder

Publications (1)

Publication Number Publication Date
CN118178918A true CN118178918A (en) 2024-06-14

Family

ID=91400121

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202410376743.2A Pending CN118178918A (en) 2024-03-29 2024-03-29 Miniature multifunctional gas cylinder

Country Status (1)

Country Link
CN (1) CN118178918A (en)

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