CN112473059A

CN112473059A - Fixed gas fire extinguishing equipment

Info

Publication number: CN112473059A
Application number: CN202011453954.XA
Authority: CN
Inventors: 刘明伟
Original assignee: Beijing Huili Fire Fighting Equipment Co ltd
Current assignee: Beijing Huili Fire Fighting Equipment Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-03-12

Abstract

The invention provides a fixed gas fire extinguishing device which is fixedly arranged in a fire protection area and comprises a fire extinguishing agent storage container and a container valve, wherein the container valve is arranged on a container opening of the fire extinguishing agent storage container. The container valve comprises a valve body, a valve core body and a temperature sensing component, wherein the valve body is provided with an air passage and a plurality of nozzle holes, and the valve core body is arranged in the air passage and can move between a first position and a second position in the air passage; when the valve core body is located at the first position, the communication between the nozzle hole and the air passage is blocked, and when the valve core body is located at the second position, the nozzle hole is communicated with the air passage. The temperature sensing component limits the valve core body at the first position, and after the temperature sensing component changes the shape or state due to temperature change, the valve core body moves to the second position, and the device is started. The fire extinguishing agent sprayed from the nozzle holes can completely cover the peripheral space of the fixed gas fire extinguishing equipment by 360 degrees. The valve body is also provided with a pressure annunciator which sends a feedback signal to the control panel after the fire extinguishing agent is sprayed to remind the person on duty of the fire.

Description

Fixed gas fire extinguishing equipment

Technical Field

The invention relates to the technical field of fire fighting, in particular to a fixed type gas fire extinguishing device.

Background

The existing society pays more and more attention to the fire safety problem and the environmental protection problem, and the use of the environment-friendly fire extinguishing equipment is the requirement of the current social development, compared with the prior art, the comprehensive performances of gas fire extinguishing, such as environmental protection performance, safety performance, cost performance, and the like, more meet the requirements of the public, and the gas fire extinguishing equipment (device) gradually becomes widely used fire extinguishing equipment.

Firstly, the traditional gas fire extinguishing equipment (device) is divided into a pipe network and a cabinet type, fig. 1 shows the overall structure and the fire extinguishing mode schematic diagram of the cabinet type gas fire extinguishing device, as shown in fig. 1, the cabinet type gas fire extinguishing device 500 is placed in a protection area and comprises a fire extinguishing agent storage container 501, a container valve 502, an electromagnetic valve 503 and a spray head 504, the container valve 502 is installed on a container opening of the fire extinguishing agent storage container 501 and is connected with the electromagnetic valve 503 in series, an outlet of the container valve 502 is connected with the spray head 504 through a pipeline, the whole body is arranged in a cabinet body, and the spray head 504 extends out of the cabinet body.

The difference between two kinds of fire extinguishing equipment, namely a pipe network and a cabinet type, is that:

the gas fire extinguishing equipment with the pipe network needs to be arranged between independent steel cylinders, and the cabinet type gas fire extinguishing device does not need to be arranged between the independent steel cylinders and only needs to be arranged in a protection area.

The gas fire-extinguishing equipment with the pipe network needs to build a pipeline from the steel cylinders to a protection area, and the cabinet type gas fire-extinguishing device only has a small section of metal hose;

the pipeline loss of the fire extinguishing agent of the gas fire extinguishing equipment with the pipe network is large, and the pipeline loss of the cabinet type gas fire extinguishing device is small;

the gas fire-extinguishing equipment with pipe network is composed of many fire-extinguishing agent storage bottles, can protect several protection zones with different sizes, and can be sprayed in a targeted mode, and the cabinet type gas fire-extinguishing equipment is composed of single bottle group or double bottle group, and the protection zone area is small.

The gas fire-extinguishing equipment with the pipe network is sprayed through the pipe network, the spray heads are evenly distributed, the spraying is even, the fire-extinguishing effect is good, the cabinet type gas fire-extinguishing device is sprayed through the metal hose by the spray heads on the box body, the spraying points are limited, and the spraying is not even enough.

Two, traditional mode gas fire extinguishing apparatus (device), there are three kinds of starting mode:

and (3) automatic starting: when a fire disaster occurs, smoke or temperature in a protection area detects the fire disaster, the smoke or temperature is transmitted to a control panel in a central control room through an electric signal, the control panel sends out an acousto-optic alarm and a fire extinguishing instruction (the electric signal), the electric signal is transmitted to a solenoid valve to start the solenoid valve, and a pricker on the solenoid valve punctures a working membrane to start fire extinguishing;

manual start-up: when a fire disaster occurs, after the fire disaster is detected by smoke or temperature, the electric signal is transmitted to a control panel in a central control room, the control panel gives out sound and light alarm, an attendant in the central control room presses a fire extinguishing button of the control panel to transmit the electric signal to a solenoid valve to start the solenoid valve, and a pricker on the solenoid valve punctures a working membrane to start and extinguish the fire;

emergency starting: when a fire disaster occurs, a person in the fire scene finds the fire situation, pulls down the safety card of the electromagnetic valve, manually beats down the button of the electromagnetic valve, and starts to extinguish the fire.

Thirdly, the existing traditional gas fire extinguishing equipment (device) has certain defects and shortcomings:

the fire extinguishing agent is sprayed to extinguish fire, electric signals are sent out by smoke and temperature senses and are simultaneously transmitted to a control panel in a central control room, the control panel sends out acousto-optic alarm and fire extinguishing instructions (electric signals), the electric signals are transmitted to an electromagnetic valve to start the electromagnetic valve, and a pricker on the electromagnetic valve punctures a working membrane to open a container valve. If the smoke or temperature is out of order, no electric signal is transmitted to the central control, and the operator on duty in the control room does not find the fire in time, the container valve can not be opened, the fire can not be effectively controlled, and casualties and property loss are easily caused;

when the emergency starting is carried out, the starting is orderly, the safety pin needs to be pulled down firstly, the safety pin of the selector valve needs to be pulled out in the gas fire extinguishing equipment with the pipe network, the selector valve is started firstly in an emergency, and then the electromagnetic valve is started. When a fire disaster occurs, people are nervous, and the situation that the fire disaster cannot be controlled in time due to the fact that the people can not be confused, forget the starting sequence is avoided.

When the protection area is small, if the gas fire extinguishing equipment with the pipe network is arranged, the steel cylinders are required to be arranged independently, and the spraying pipeline is built, so that the manufacturing cost is high.

The gas fire-extinguishing equipment with pipe network has separated steel cylinders, and the distance from the protecting area is far greater than that of cabinet type gas fire-extinguishing equipment, so that the required filling pressure is correspondingly increased, and the danger coefficient is increased.

The cabinet type gas fire extinguishing device is provided with a cabinet body, a door handle of the cabinet body is not easy to open sometimes, and in case of fire, the scene is in disorder, the temperature rise speed is high, and emergency starting is not easy.

The cabinet type gas fire extinguishing device needs to be placed in the box body, and the spray head is installed in the box body, so that the spraying effect can be only at a small angle, the spraying is not uniform enough, the fire extinguishing time cannot be guaranteed, and the safety of a protection area without a dead angle of 360 degrees cannot be realized.

In view of the above problems, the inventors of the present invention have finally obtained the present invention through a long period of research and practice.

Disclosure of Invention

In order to solve the technical problems, the invention provides a fixed type gas fire extinguishing device which can be automatically started to spray extinguishing agent to extinguish fire even if smoke detectors and temperature detectors in a protection area fail in case of fire.

The technical scheme adopted by the invention is as follows:

the fixed gas fire extinguishing equipment is fixedly arranged in a fire protection area and comprises a fire extinguishing agent storage container and a container valve, wherein the container valve is arranged on a container opening of the fire extinguishing agent storage container;

the container valve comprises a valve body, a valve core body and a temperature sensing element;

the valve body is provided with an air passage and a plurality of nozzle holes, the air passage is communicated with the container opening, and the nozzle holes are uniformly arranged along the outer circumferential direction of the valve body and are communicated with the air passage;

the valve core body is arranged in the air passage and can move between a first position and a second position in the air passage; when the valve core body is located at the first position, the communication between the nozzle hole and the air passage is blocked, and when the valve core body is located at the second position, the nozzle hole is communicated with the air passage;

the temperature sensing component is arranged on the valve body and used for limiting the valve core body at a first position; after the temperature sensing component changes shape or state due to temperature change, the valve core body moves to a second position under the pushing of gas in the fire extinguishing agent storage container, and the fire extinguishing agent in the fire extinguishing agent storage container is sprayed to the outside of the valve body through the nozzle hole.

Further, the container valve also comprises a valve cover component and a spring,

the air passage is longitudinally communicated along the valve body, and the lower end of the air passage is communicated with a container opening of the fire extinguishing agent storage container;

the valve cover assembly comprises an inner valve cover and an outer valve cover, and the outer valve cover is fixedly connected to the top of the air passage; the inner valve cover is fixedly connected in the air passage and divides the air passage into a temperature sensing cavity and a valve cavity, and the temperature sensing cavity is positioned above the valve cavity; the inner valve cover is provided with a pressure relief through hole, and a sealing seat is arranged at the position of the pressure relief through hole in a matching way;

the temperature sensing component is arranged in the temperature sensing cavity and abuts against the space between the outer valve cover and the sealing seat, so that the sealing seat seals the pressure relief through hole;

the valve core body can be longitudinally and slidably arranged in the valve cavity to divide the valve cavity into an upper valve cavity and a lower valve cavity; the spring is arranged in the upper valve cavity, and two ends of the spring respectively abut against the inner valve cover and the valve core body; a positioning boss is arranged on the inner wall of the valve cavity, the valve core body is clamped on the positioning boss when located at the first position so as to limit the position, and a damping hole communicated with the upper valve cavity and the lower valve cavity is arranged on the valve core body;

the diameter of the pressure relief through hole is larger than that of the damping hole; when the temperature sensing component changes form or state due to temperature change, the sealing seat is separated from the pressure relief through hole, then the upper valve cavity is relieved in pressure, and the valve core body slides upwards to the second position.

Further, the fire extinguishing agent sprayed from the nozzle holes can completely cover the peripheral side space of the fixed type gas fire extinguishing apparatus by 360 degrees.

Furthermore, a threaded hole is formed in the outer valve cover and is in threaded connection with an adjusting screw, and the temperature sensing component abuts against the space between the adjusting screw and the sealing seat.

Furthermore, the temperature sensing component is a temperature sensing glass bulb, or a fire detection tube, or a fusible alloy.

Furthermore, a plurality of heat conduction holes communicated with the outside are uniformly formed in the valve wall on the peripheral side of the temperature sensing cavity along the circumferential direction, the diameter of each heat conduction hole is slightly smaller than the height of the temperature sensing cavity, and the heat conduction holes are closely adjacent.

Furthermore, the temperature sensing cavity, the upper valve cavity and the lower valve cavity are arranged in a right-to-up sequence, and the central axes are collinear.

Further, the seal receptacle includes a sealed post and a backup pad, sealed post vertical fixation in the bottom surface of backup pad, sealed post is used for sealing the pressure release through-hole, the backup pad is used for supporting temperature sensing components and parts.

Furthermore, the upper part and the lower part of the peripheral surface of the valve core body are respectively provided with a sealing groove along the circumferential direction, and an O-shaped sealing ring is arranged in the sealing groove; when the valve core body is located at the lower first position, the two sealing grooves are respectively located above and below the port in the nozzle hole.

Further, a pressure feedback interface is arranged on the valve body and is communicated with the air passage, when the valve core body is located at the first position, the valve core body blocks the communication between the pressure feedback interface and the air passage, when the valve core body is located at the second position, the pressure feedback interface is communicated with the air passage, a pressure feedback device is installed on the pressure feedback interface and is used for sending a feedback signal to the control panel after the fire extinguishing agent is sprayed, and the fire condition is reminded of an operator on duty.

Furthermore, a safety valve interface and an inflation valve interface are arranged on the valve body, the safety valve interface and the inflation valve interface are respectively communicated with the air passage, the safety valve interface and the inflation valve interface are positioned below the valve core body, and a safety valve assembly and an inflation valve assembly are respectively arranged on the safety valve interface and the inflation valve interface.

Compared with the prior art, the invention has the beneficial effects that:

1. compared with the traditional cabinet type gas fire extinguishing device, the fixed type gas fire extinguishing device does not need to be provided with a box body, an electromagnetic valve, a high-pressure metal hose and a spray head, is more direct in fire extinguishing, and can reduce the cost.

2. The fixed gas fire-extinguishing equipment of the invention has the advantages that the spray head is integrated on the container valve 2 for the fixed gas fire-extinguishing device, the loss of the medicament pipeline is almost 0, and the medicament is fully utilized.

3. The nozzle of the fixed gas fire-extinguishing equipment is integrated on the container valve at 360 degrees, and the agent is sprayed to cover a protection area at 360 degrees, so that the fire-extinguishing efficiency is higher.

4. When the smoke detector and the temperature detector in the protection area are out of order, the traditional cabinet type gas fire extinguishing device cannot be automatically started and can only be manually started or started in an emergency mode. When the temperature in the protection area reaches the set value of the temperature sensing component, the fixed gas fire extinguishing equipment automatically starts the device to extinguish fire, so that the protection is more direct.

5. The fixed gas fire-extinguishing equipment does not use a pipeline for spraying, and has simple structure and more concise and beautiful appearance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view showing the overall structure and fire extinguishing mode of a conventional cabinet type gas fire extinguishing apparatus;

FIG. 2 is a schematic view showing the overall structure and fire extinguishing mode of the stationary gas fire extinguishing apparatus of the present invention;

FIG. 3 is a schematic diagram showing the extinguishing agent spraying effect of the stationary gas fire extinguishing apparatus of the present invention;

fig. 4 illustrates a structural sectional view of a container valve of a fixed type gas fire extinguishing apparatus according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 shows a schematic view of a container valve of an embodiment of the present invention in a closed state;

FIG. 7 shows a schematic view of a container valve of an embodiment of the present invention in an open state.

Detailed Description

The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

As shown in fig. 2, the fixed type gas fire-extinguishing apparatus is installed in a fire-protection area, fixed, and includes a fire-extinguishing agent storage container 300 and a container valve 400, and the container valve 400 is installed on a container port of the fire-extinguishing agent storage container, and is typically screwed. The container valve 400 includes a valve body, a spool body, and a temperature sensing element. The valve body is provided with a plurality of nozzle holes, when a fire disaster occurs and the temperature in the protection area reaches the set value of the temperature sensing component, the fixed gas fire extinguishing equipment is started, and fire extinguishing agent is sprayed from the nozzle holes on the container valve 400 of the fixed gas fire extinguishing device to extinguish the fire.

Preferably, as shown in fig. 3, the fire extinguishing agent sprayed from the nozzle holes can completely cover the peripheral side space of the fixed gas fire extinguishing apparatus by 360 degrees, and the fire extinguishing efficiency is higher.

In a specific embodiment, the valve body is provided with an air channel and a plurality of nozzle holes, the air channel is communicated with the container opening, and the nozzle holes are uniformly arranged along the outer periphery of the valve body and are communicated with the air channel. The valve core body is arranged in the air passage and can move between a first position and a second position in the air passage; when the valve core body is located at the first position, the communication between the nozzle hole and the air passage is blocked, and when the valve core body is located at the second position, the nozzle hole is communicated with the air passage. The temperature sensing component is arranged on the valve body and used for limiting the valve core body at a first position; after the temperature sensing component is broken or deformed or melted due to temperature change, the valve core body moves to the second position under the pushing of gas in the fire extinguishing agent storage container, and the fire extinguishing agent in the fire extinguishing agent storage container is sprayed to the outside of the valve body through the nozzle hole.

Preferably, the valve body is further provided with a pressure annunciator, after the fixed gas fire extinguishing equipment sprays the fire extinguishing agent, the pressure annunciator sends a feedback signal to the control panel, and an indicator lamp in the control panel is on to remind an operator on duty of fire.

In a typical embodiment, the container valve adopting the innovative structure integrates the functions of a nozzle, manual starting, emergency starting and temperature sensing automatic starting. An inflation valve assembly is reserved on the container valve, so that the container valve can be filled with gas fire extinguishing agent and driving gas, and can measure the pressure in the bottle group; a safety valve assembly is reserved, so that the safety of products and personnel can be protected; the reserved signal feedback device interface can be transmitted to the control panel when the fixed gas fire extinguishing device is started, and the control panel sends out a spraying alarm. And the valve body is provided with a nozzle hole which integrates the functions of the nozzle.

As shown in fig. 4 to 7, the container valve includes a valve body 1, a bonnet assembly, a temperature sensing component 5, and a valve core assembly 2. The valve body 1 is internally provided with a longitudinally through air passage. The lower port of the air passage is provided with threads for connecting the bottle mouth of the fire extinguishing agent container. The valve body 1 is provided with a nozzle hole 11, and the nozzle hole 11 is communicated with the air channel and the outside of the valve body.

The valve cover assembly comprises an inner valve cover 3 and an outer valve cover 7, and the outer valve cover 7 is in threaded connection with the upper end opening of the air passage of the valve body 1 so as to seal the upper end opening of the air passage. Inner valve lid 3 fixed connection is in the air flue, inner valve lid 3 and air flue inner wall threaded connection, and inner valve lid 3's periphery is equipped with seal groove and sealing washer. The air passage portion between the inner valve cover 3 and the outer valve cover 7 forms a temperature sensing chamber 100, and the air passage portion at the lower end of the inner valve cover 3 forms a valve chamber 200. The inner valve cover 3 is provided with a pressure relief through hole 31, and the position of the pressure relief through hole 31 is matched with a sealing seat 4. The temperature sensing component 5 is disposed in the temperature sensing cavity 100, the temperature sensing component 5 abuts against the space between the outer valve cover 7 and the sealing seat 4, so that the sealing seat 4 seals the pressure relief through hole 31, and the inner valve cover 3 completely seals and isolates the temperature sensing cavity 100 and the valve cavity 200. The temperature sensing element 5 can be burst, broken, deformed or melted when the temperature reaches a specific temperature or higher. It can be understood that the temperature-sensitive component 5 limits the position of the sealing seat 4, and if the temperature-sensitive component 5 is broken or deformed or melted, the sealing seat 4 is not limited by the temperature-sensitive component.

The valve core assembly 2 comprises a valve core body 22 and a spring 21, the valve core body 22 is arranged in the valve cavity 200, the peripheral side of the valve core body 22 is in contact with the inner wall of the valve cavity 200, and the valve core body 22 slides longitudinally along the valve cavity 200. A sealing structure is formed between the peripheral side of the spool body 22 and the inner wall of the valve cavity 200. The valve body 22 divides the valve chamber 200 into an upper valve chamber 210 and a lower valve chamber 220. The spring 21 is disposed in the upper valve cavity 210, and two ends of the spring respectively abut against the inner valve cover 3 and the valve core 22. The middle part of the valve cavity 200 is provided with a reducing part, the diameter of the reducing part is reduced downwards, and a positioning boss is correspondingly formed at the position. The periphery of the valve core body 22 also has a diameter-reducing portion, the diameter of the diameter-reducing portion decreases downward, a corresponding position of the diameter-reducing portion forms a clamping surface matched with the positioning boss, the valve core body 22 cannot slide downward after the clamping surface contacts with the positioning boss, in other words, a lower limit position (first position) of the valve core body 22 is defined, and at this time, the valve core body 22 can only slide upward. The valve core body 22 is provided with a damping hole 25 communicating the upper and

lower valve cavities

210 and 220. The diameter of the orifice 25 is smaller than that of the relief through hole 31. When the valve core body 22 is located at the lower limit position (first position), the communication between the nozzle hole 11 and the air passage is blocked.

It can be understood that, as shown in fig. 6 and 7, the container valve is of a differential pressure type structure, the spool body 22 is provided with the damping hole 25, the pressures of the fire extinguishing agents in the upper valve chamber 210 and the lower valve chamber 220 are equalized, and the pressure of the upper valve chamber 210 is sealed by the sealing seat 4. The temperature sensing component 5 supports the sealing seat 4, and the sealing seat 4 is pressed on the inner valve cover 3 to seal the pressure relief through hole 31, so that the upper port of the upper valve cavity 210 is sealed to seal the fire extinguishing agent. The fire extinguishing agent spraying process comprises the following steps: once the temperature sensing component 5 reaches the bursting or deformation or melting value along with the increase of the temperature, the supporting force of the temperature sensing component 5 on the seal seat 4 disappears, and the seal seat 4 is pushed up, because the diameter of the damping hole 25 is smaller than that of the pressure relief through hole 31, the discharge speed of the pressure in the upper valve cavity 210 is larger than the supply speed of the pressure of the damping hole 25 of the valve core body 22 to the upper valve cavity 210, and the pressure is rapidly released and exhausted. The valve core body 22 with the over-pressure of the lower valve cavity 220 is jacked up to the second position, the fire extinguishing agent is sprayed out from the nozzle hole 11 of the valve body 1, the container valve is started, and the fire extinguishing agent is sprayed out through the nozzle hole 11 on the container valve.

The maximum crush load of the temperature sensitive element 5 is generally about 2000N, and if the supporting force of the temperature sensitive element 5 on the seal holder 4 is to be maintained, the stress on the temperature sensitive element 5 must be smaller than the crush load. Because the pressures in the upper and

lower valve chambers

210, 220 are in equilibrium, the pressure of the fire suppressant on the spool body 22 is also in equilibrium. The pressure of the fire suppressant in the upper and

lower valve chambers

210, 220 is the same, so that the pressure and pressure of the fire suppressant against the seal seat 4 can be calculated. According to the pressure formula F-P.S (P is pressure, F is end surface pressure, and S is pressure area), if the pressure is too high, the pressure area of the seal seat 4, that is, the diameter of the pressure relief through hole 31, can be reduced. The stress area of the sealing seat 4 can be adjusted at will, and the use requirement of the container valve can be met only by the fact that the pressure relief through hole 31 is larger than the damping hole 25. In general, the steel cylinder used for a fixed gas fire extinguishing device calculates the flow rate of the fire extinguishing agent required by spraying according to the spraying time requirement required by national standards, and meets the flow rate value during spraying, the lowest drift diameter of a container valve cannot be lower than DN32, and the drift diameter of the container valve used for a steel cylinder with large volume cannot be even lower than DN 40. If F is 2000N, the diameter of the container valve is 40, the diameter of the pressure relief through hole 31 is 6, P is 2000/(6/2)²3.14 ≈ 70 MPa. The maximum working pressure of the container valve far greater than the drift diameter DN40 means that the container valve adopting the scheme can not limit the drift diameter of the container valve, can be used for a fire extinguishing agent storage container with large volume, and can ensure that the fire extinguishing agent storage container is large in volumeAnd spraying the required fire extinguishing agent flow.

In a preferred embodiment, the outer valve cover 7 is provided with a threaded hole, the threaded hole is in threaded connection with an adjusting screw 6, and the temperature sensing component 6 abuts against between the adjusting screw 6 and the sealing seat 4. More specifically, the threaded hole is a through hole, the upper end surface of the rod body 61 of the adjusting screw 6 is provided with a screwing groove matched with tools such as a screwdriver and the like, the lower end surface of the rod body 61 is provided with a groove, a nylon pad 62 is arranged in the groove, and the temperature sensing component 6 abuts against the nylon pad 62. It should be noted that the axial position of the temperature sensing component 5 can be adjusted by rotating the adjusting screw 6 with a tool, so that the temperature sensing component 5 can adapt to temperature sensing components 5 of different specifications, pressing force applied to the temperature sensing component 5 can be accurately adjusted, and the nylon pad 62 is in flexible contact with the temperature sensing component 5, thereby facilitating positioning and protection of the temperature sensing component 5. The temperature sensing component 5 can be, but is not limited to, a temperature sensing glass bulb, a fire detecting tube or a fusible alloy. Seal receptacle 4 is including sealed post and backup pad, and sealed post vertical fixation is in the bottom surface of backup pad, and sealed post cooperatees with pressure release through-hole 31 and is used for sealed pressure release through-hole 31, is equipped with the seal groove on the sealed post, installs the sealing washer in the seal groove, utilizes the sealed pressure release through-hole 31 of sealing washer, and the backup pad is used for supporting temperature sensing components and parts 5, is equipped with the arc wall in the backup pad for location temperature sensing components and parts 5. Evenly be equipped with a plurality of heat conduction holes 12 with outside intercommunication along circumference on the valve wall of temperature sensing chamber 100 week side, the diameter of heat conduction hole 12 slightly is less than the height in temperature sensing chamber 100, and each heat conduction hole 12 is closely adjacent, can understand, this structural arrangement makes heat conduction hole area very big, make the more timely response valve body outside air temperature of temperature sensing components and parts 5, and then the temperature sensing automatic start is more sensitive, and simultaneously, the aperture of heat conduction hole is very big, when the conflagration breaing out, the field personnel of being convenient for break or make it to deform or shift through hard object with temperature sensing components and parts, the emergency start container valve, make fixed gaseous extinguishing device work, it puts out a fire to spout gaseous extinguishing agent implementation.

The nozzle holes 11 are uniformly arranged on the valve body 1 along the circumferential direction, and the central line of the nozzle holes 11 is preferably arranged obliquely upwards. The upper and lower portions of the outer peripheral surface of the valve body 22 are respectively provided with

seal grooves

23, 24 in the circumferential direction, and O-ring seals are provided in the seal grooves. When the valve core body 22 is located at the lower limit position (the first position), the two

seal grooves

23 and 24 are located above and below the inner port of the nozzle hole 11, respectively, so as to ensure that the valve core body 22 can completely block the communication between the nozzle hole 11 and the air passage in the closed state. The temperature sensing cavity 100, the upper valve cavity 210 and the lower valve cavity 220 are arranged oppositely from top to bottom in sequence, and the central axes are collinear.

The assembling process is that the O-shaped sealing rings are respectively arranged in the corresponding sealing

grooves

23 and 24 on the valve core body 22, and are evenly coated with lubricating silicone grease, the assembled valve core body 22 is placed in the valve cavity 200 of the valve body 1 and is pressed to the bottom (the positioning boss), namely the lower limit position (the first position), and then the spring 21 is placed. And (3) installing the sealing ring into the sealing groove of the inner valve cover 3, coating lubricating silicone grease, screwing the sealing ring into the corresponding thread of the valve cavity 200 of the valve body 1, and screwing the sealing ring tightly. And (3) the sealing ring is arranged in a sealing groove of the sealing seat 4, and is coated with lubricating silicone grease which is placed in the pressure relief through hole 31 of the inner valve cover 3. The outer valve cover 7 is screwed into the corresponding threaded hole of the valve body 1 and tightened. Install nylon pad 62 in the recess of body of rod 61 lower extreme face of adjusting screw 6 to in the screw hole of outer valve gap 7 is twisted to adjusting screw subassembly 6 that will assemble, put the circular arc groove department of seal receptacle 4 with temperature sensing components and parts 5 button head department this moment, through twisting adjusting screw subassembly 6, with temperature sensing components and parts 5 with the compaction of seal receptacle 4. The container valve is simple in structure, convenient to install, free of casting in the machining process and cost-saving.

As shown in fig. 4 and 5, in a more preferred embodiment, a safety valve interface, an inflation valve interface and a pressure feedback interface are arranged on the valve body 1, the safety valve interface, the inflation valve interface and the pressure feedback interface are respectively communicated with the air passage, when the valve core body is located at the lower limit position (the first position), the safety valve interface and the inflation valve interface are located below the valve core body, and a safety valve assembly 9 and an inflation valve assembly 8 are respectively arranged on the safety valve interface and the inflation valve interface. When the valve core body is located at the lower limit position (the first position), the valve core body blocks the communication between the pressure feedback interface and the air passage, and the pressure feedback device 10 is installed on the pressure feedback interface. During installation, the gasket 81 and the inflation valve body 82 are sequentially placed in corresponding hole positions on the cylindrical surface of the valve body 1, the inflation valve body 82 is screwed, the O-shaped ring 83 is installed in a groove of the inflation valve core and locked on the inflation valve body 82 through the lock nut 85, and finally the pressure gauge pad 86 is placed in a threaded hole of the inflation valve core 84. The red copper pad 94, the safety diaphragm 93, the diaphragm pressing ring 92 and the safety valve body 91 are sequentially arranged in corresponding holes of the cylindrical surface of the valve body 1, and finally the safety valve body 91 is screwed down, so that the safety valve assembly 9 cannot be leaked. And installing the pressure feedback device 10 at a corresponding hole position on the cylindrical surface of the valve body 1 and screwing. And screwing the assembled container valve into the thread of the fire extinguishing agent storage steel cylinder, tightening without leakage, and performing airtight inspection, wherein the fire extinguishing agent can be filled after the airtight inspection is qualified. The fire extinguishing agent or the driving gas is connected with the inflating valve core 84 of the inflating assembly 8 of the container valve through a metal hose, the locking nut 85 of the inflating valve assembly 8 is released, the fire extinguishing agent or the driving gas valve is opened, and the fire extinguishing agent or the driving gas is filled into the fire extinguishing agent storage container. After the fire extinguishing agent is filled to the rated pressure, the locking nut 85 on the inflation valve assembly 8 is screwed down, the metal hose is removed, the air tightness of the fire extinguishing agent storage container is checked, and the fire extinguishing agent storage container can be installed and used after the fire extinguishing agent storage container is qualified. After the fixed gas fire-extinguishing equipment sprays the fire-extinguishing agent, the pressure feedback device 10 sends a feedback signal to the control panel, and an indicator lamp in the control panel is on to remind an operator on duty of fire.

It should be noted that the force of the fire extinguishing agent in the lower valve chamber 220 to the valve core 22 is the same as the force F of the fire extinguishing agent in the upper valve chamber 210 to the valve core 22, and the spring 21 has a downward elastic force to the valve core 22, and the sum of the forces of the upper valve chamber 210 is greater than the force F of the lower valve chamber 220, so that the valve core 22 is fixed at the positioning boss of the valve body 1, and the fire extinguishing agent for sealing the upper and lower valve chambers is not sprayed from the nozzle hole 11 on the valve body 1. The force of the fire extinguishing agent in the upper valve cavity 210 to the sealing seat 4 is smaller than the supporting force of the temperature sensing component 5 to the sealing seat 4, so that the sealing seat 4 is fixed in the pressure relief through hole 31 of the inner valve cover 3 to seal the upper valve cavity 210. When the fixed gas fire extinguishing device is filled with the gas fire extinguishing agent, the pressure of the slowly filled gas fire extinguishing agent and the driving gas flows to the upper valve cavity 210 through the damping hole 25 on the valve core body 22, at the moment, the pressure of the upper valve cavity 210 is sealed in the upper valve cavity 210 by the temperature sensing element 5 and the sealing seat 4, and the upper valve cavity and the lower valve cavity reach pressure balance. The upper valve cavity also has downward elastic force generated by the spring 21 on the valve core body 22, so that the pressure of the upper valve cavity is slightly larger than that of the lower valve cavity. The temperature sensing component 5 is pressed on the sealing seat 4, and has a downward supporting force on the sealing seat 4. And (3) installing the assembled container valve 2 for the fixed gas fire extinguishing device at the thread position of the bottle mouth of the fire extinguishing agent storage container, tightening without leakage, performing airtight inspection, and filling the fire extinguishing agent after the airtight inspection is qualified.

The invention has two starting modes:

and (3) active start: when the protection area encounters a fire, the temperature in the protection area rises sharply, when the temperature reaches the set value of the temperature sensing element 5, the temperature sensing element 5 actively opens the container valve, at the moment, the gas fire extinguishing agent in the fire extinguishing agent storage steel cylinder is pushed by the driving gas to open, and the fire extinguishing agent is sprayed from the nozzle hole 11 on the valve body 1 to extinguish the fire.

And (3) passive starting: when a fire disaster occurs in the protection area, field personnel knock the temperature sensing component 5 to open the container valve, at the moment, the gas fire extinguishing agent in the fire extinguishing agent storage steel cylinder is pushed by the driving gas to open, and the fire extinguishing agent is sprayed from the nozzle hole 11 on the valve body 1 to extinguish the fire.

The container valve provided by the invention has the following advantages:

1. the container valve provided by the invention is provided with the temperature sensing component, so that the container valve can be opened actively to implement automatic fire extinguishing after a fire occurs on site, and active protection is carried out on a protection area. The container valve is provided with an inflation valve assembly which can be filled with gas fire extinguishing agent and driving gas and can measure the pressure in the bottle group; the safety valve assembly is arranged, so that the safety of products and personnel can be protected; the pressure feedback device is arranged, and can be transmitted to the control panel when the fixed gas fire extinguishing device is started, and the control panel sends out a spraying alarm.

2. The container valve provided by the invention adopts a differential pressure type structure, and the size of the stress area of the sealing seat can be adjusted at will, so that the diameter of an air passage (the diameter of the container valve) of the container valve is not influenced by the crushing load of a temperature sensing component, and the container valve can be used in a fixed gas fire extinguishing device with a larger volume and can also be used in gas fire extinguishing equipment (device) with a smaller volume.

3. The container valve provided by the invention can be used in cooperation with a smoke detector and a temperature detector, and can be used independently when a protection area with no detector is provided.

4. The container valve provided by the invention has large area of the heat conducting hole, so that the automatic temperature sensing starting is more sensitive.

5. The container valve provided by the invention has the advantages of simple structure, no need of casting in the processing technology and cost saving.

6. The valve core does not shield the nozzle hole after the container valve is started, and the flow of the fire extinguishing agent during spraying is not influenced.

7. The container valve provided by the invention has the advantages of compact structure, small size and complete functions, is not easy to leak, and can meet the use requirements of a fixed gas fire extinguishing device.

8. The gas fire extinguishing equipment provided with the container valve can be independently placed in a protection area without installing a box body, so that time and labor are saved, and the cost is saved; when a fire occurs, field personnel can break or deform or displace the temperature sensing component through a hard object, and the container valve is started emergently, so that the fixed gas fire extinguishing device works, and the gas fire extinguishing agent is sprayed to extinguish the fire. And traditional fixed gaseous extinguishing device still need open the box door, just can realize emergent the start.

The foregoing is merely a preferred embodiment of this invention, which is intended to be illustrative, and not limiting. The structure, the connection mode and the like of all the components in the invention can be changed, and the equivalent transformation and the improvement on the basis of the technical scheme of the invention are not excluded from the protection scope of the invention.

Claims

1. A fixed gas fire-extinguishing apparatus is characterized in that the fixed gas fire-extinguishing apparatus is fixedly arranged in a fire protection area and comprises a fire-extinguishing agent storage container and a container valve, wherein the container valve is arranged on a container opening of the fire-extinguishing agent storage container;

2. A fixed gas fire suppression apparatus as defined in claim 1, wherein said container valve further comprises a bonnet assembly and a spring,

3. A fixed gas fire extinguishing apparatus according to claim 1 or 2, wherein the fire extinguishing agent sprayed from the nozzle holes covers the circumferential side space of the fixed gas fire extinguishing apparatus over 360 °.

4. A fixed gas fire extinguishing apparatus according to claim 2, wherein the outer valve cover has a threaded hole, the threaded hole is threadedly engaged with an adjusting screw, and the temperature sensing element abuts between the adjusting screw and the seal holder.

5. A fixed gas fire suppression apparatus as claimed in claim 2, wherein said temperature sensing component is a temperature sensing glass bulb, or a fire detector tube, or a fusible alloy.

6. A fixed gas fire extinguishing apparatus according to claim 2, wherein the valve wall around the temperature-sensing chamber is uniformly provided with a plurality of heat transfer holes communicating with the outside in the circumferential direction, the diameter of the heat transfer holes is slightly smaller than the height of the temperature-sensing chamber, and the heat transfer holes are closely adjacent.

7. A fixed gas fire extinguishing apparatus according to claim 2, wherein the sealing mount comprises a sealing post and a supporting plate, the sealing post is fixed perpendicularly to the bottom surface of the supporting plate, the sealing post is used for sealing the pressure relief through hole, and the supporting plate is used for supporting the temperature sensing component.

8. A fixed gas fire extinguishing apparatus as recited in claim 2, wherein the upper and lower portions of the outer peripheral surface of the spool body are respectively provided with seal grooves along the circumferential direction, and O-ring seals are provided in the seal grooves; when the valve core body is located at the first position, the two sealing grooves are respectively located above and below the port in the nozzle hole.

9. The fixed gas fire extinguishing apparatus of claim 2, wherein the valve body is provided with a pressure feedback port, the pressure feedback port is in communication with the air passage, the valve core block blocks the communication between the pressure feedback port and the air passage when the valve core block is in the first position, the pressure feedback port is in communication with the air passage when the valve core block is in the second position, and the pressure feedback port is provided with a pressure feedback device, and the pressure feedback device is used for sending a feedback signal to the control panel after the fire extinguishing agent is sprayed, so as to remind an operator on duty of a fire.

10. The fixed gas fire extinguishing apparatus of claim 9, wherein the valve body is provided with a safety valve port and an inflation valve port, the safety valve port and the inflation valve port are respectively communicated with the gas passage, the safety valve port and the inflation valve port are located below the valve core body, and the safety valve port and the inflation valve port are respectively provided with a safety valve assembly and an inflation valve assembly.