Non-pressure storage type container valve and fire extinguishing device thereof

Abstract

The utility model relates to fire extinguishing equipment, and discloses a non-pressure storage type container valve and a fire extinguishing device thereof. The non-pressure storage type container valve comprises a valve body, a fire extinguishing agent channel is arranged on the valve body, a valve core capable of moving up and down is installed in the fire extinguishing agent channel, a supporting check block is fastened at the outlet end of the fire extinguishing agent channel, and a first elastic reset piece is installed between the valve core and the supporting check block; when the valve core moves downwards and abuts against the supporting check block, a valve channel in the valve core is opened; the valve body is provided with a gas generation cavity and a gas transmission channel, an upper port of the gas transmission channel penetrates through the upper end face of the valve body and faces the same direction as the inlet end of the fire extinguishing agent channel, a plug is installed on the gas transmission channel, the lower end of the gas transmission channel is communicated with the gas generation cavity, and a gas generation assembly used for generating high-pressure gas is installed on the gas generation cavity. The liquid fire extinguishing agent does not exist at the lower end of the valve core, high-pressure gas generated by the gas generation assembly can easily jack the valve core open, the phenomenon that the valve core is stuck due to residual fire extinguishing agent or other factors is effectively avoided, and the smoothness of the valve opening action is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire extinguishing equipment especially to non-pressure type container valve and fire extinguishing device thereof. BACKGROUND

[0002] With the continuous improvement of fire safety demand, the performance and structure optimization of fire extinguishing device become the research focus. Among the key components of fire extinguishing device, the design of container valve plays a crucial role in fire extinguishing effect. The traditional container valve exposes many problems in practical application, prompting the emergence of new non-pressure type container valve scheme.

[0003] Disadvantages of traditional pressure type container valve: the pressure type container valve is in high pressure state for a long time, which requires high material quality and sealing performance of the container, increasing the manufacturing cost and safety risk. Long-term storage may cause parts aging and deformation, reduce the sealing performance and cause leakage problems, which not only affects the normal use of fire extinguishing device, but also may fail to start at critical moment, endangering life and property safety.

[0004] Defects of existing non-pressure type container valve: the existing non-pressure type fire extinguishing device mentioned in the reference document, such as the full fluorine hexanone fire extinguishing device disclosed in the utility model patent with application number CN202320898391.8, has complex structure. Its expansion assembly contains multiple components such as storage pipe, gas generating agent and ignition element, and the matching precision between components is high, which increases the difficulty of installation and maintenance. When spraying fire extinguishing agent, the gas generating agent needs to be ignited to generate gas, and the gas expansion pushes the fire extinguishing agent to break through the sealing film and spray out. This process involves multiple links and has slow response speed, which cannot control the fire in time and effectively.

[0005] Some non-pressure type container valves need to be inverted on the fire extinguishing agent bottle body. When the container valve is inverted, there will be some fire extinguishing agent in liquid form on the container valve. When the fire extinguisher is started, the fire extinguishing agent in liquid state will not be compressed, which is easy to cause the starting knife head on the container valve to be stuck.

[0006] In modern society, the standards for fire safety in various places are increasingly strict. Especially in densely populated public places, flammable and explosive industrial areas and places with high requirements for electronic equipment protection, once a fire breaks out, the fire extinguishing device needs to respond quickly and extinguish the fire efficiently. The traditional container valve cannot meet these high requirements, so there is an urgent need for a non-pressure type container valve with simple structure, sensitive response and safety and reliability to improve the overall performance of the fire extinguishing device and ensure fire safety. UTILITY MODEL CONTENTS

[0007] The utility model provides non-pressure type container valve and fire extinguishing device thereof aiming at the defects in the prior art.

[0008] In order to solve the above technical problems, the utility model solves them through the following technical schemes:

[0009] The non-pressure storage container valve comprises a valve body, a fire extinguishing agent channel is arranged through the upper and lower end faces of the valve body,

[0010] A valve core capable of moving up and down is arranged in the fire extinguishing agent channel, a support block is fastened at the outlet end of the fire extinguishing agent channel, and a first elastic reset member is arranged between the valve core and the support block; when the valve core moves downward and abuts against the support block, the valve channel on the valve core is opened.

[0011] A gas production cavity and a gas conveying channel are arranged on the valve body, the upper end of the gas conveying channel penetrates through the upper end face of the valve body and is oriented in the same direction as the inlet end of the fire extinguishing agent channel, a plug is arranged on the gas conveying channel, the lower end of the gas conveying channel is communicated with the gas production cavity, and a gas production assembly for producing high-pressure gas is arranged on the gas production cavity.

[0012] Preferably, a valve core capable of moving up and down is arranged in the fire extinguishing agent channel, the valve core is axially provided with mounting holes penetrating through both ends thereof, and the valve core is arranged on the mounting holes, and the valve core drives the valve core to move up and down synchronously.

[0013] Preferably, the valve core comprises a core body and a top rod, the core body is fastened on the valve core and is in sealed connection with the valve core, the core body is provided with a valve channel, the top rod is arranged on the valve channel, a sealing gasket for sealing the port of the valve channel is arranged on the upper end face of the top rod, and a second elastic reset member supported on the core body is arranged on the lower end of the top rod.

[0014] Preferably, a first opening block ring is further arranged at the lower end of the fire extinguishing agent channel, the first opening block ring is arranged above the support block, and the first elastic reset member passes through the first opening block ring and is connected with the support block.

[0015] Preferably, an upper positioning groove for positioning the first elastic reset member is arranged on the upper end of the support block, a lower positioning groove for arranging a dismounting tool is arranged on the lower end of the support block, and the upper positioning groove and the lower positioning groove are communicated through a first through hole.

[0016] Preferably, a second opening block ring is arranged on the upper end of the gas conveying channel, a third elastic reset member is arranged between the second opening block ring and the plug, and the lower end of the plug is sealed to the lower end of the gas conveying channel through a sealing ring.

[0017] Preferably, the gas production assembly comprises an igniter and gunpowder, the gunpowder is filled in the gas production cavity, the igniter is fastened on the port of the gas production cavity, and the ignition end of the igniter extends into the gas production cavity.

[0018] As preferred, a pressure signal feedback device is further installed on the valve body, the pressure signal feedback device comprising a switch valve seat, a micro switch and a trigger body, the micro switch being fastened on the switch valve seat, the valve body being provided with a second through hole in communication with the fire extinguishing agent passage, the trigger body being installed on the second through hole and arranged between the valve core and the micro switch, the valve core moving downward and pushing the trigger body to press on the micro switch.

[0019] As preferred, a step surface limiting the axial valve core is arranged at the top end of the fire extinguishing agent passage, when the valve core is limited on the step surface, the lower end of the valve core extends to the second through hole, and the lower end of the valve core is provided with a guide inclined surface for obliquely pushing the trigger body.

[0020] The fire extinguishing device comprises a fire extinguishing agent bottle body, and comprises a non-pressure storage container valve.

[0021] The utility model discloses a container valve and a fire extinguishing agent bottle body, and the container valve is installed on the fire extinguishing agent bottle body in an inverted manner.

[0022] When the container valve is inverted on the fire extinguishing agent bottle body, the lower end of the valve core is not provided with liquid fire extinguishing agent, and the high-pressure gas generated by the gas production assembly can easily push open the valve core, effectively avoiding the phenomenon that the valve core is stuck due to the residual fire extinguishing agent or other factors, ensuring the smoothness of the valve opening operation and improving the response speed and reliability of the valve in an emergency. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a sectional view of the utility model.

[0024] Figure 2 is Figure 1 is a sectional view of the valve body.

[0025] Figure 3 is Figure 1 is a sectional view of the valve core.

[0026] Figure 4 is Figure 1 is a sectional view of the valve core.

[0027] Figure 5 is Figure 1 is a sectional view of the support block.

[0028] Figure 6 is a structure schematic diagram of the support block from the bottom.

[0029] Figure 7 is a structure schematic diagram of the first opening block.

[0030] The part names referred to by the numbers in the above drawings are as follows:

[0031] 10 - valve body, 11 - valve core, 12 - support block, 13 - first elastic return member, 14 - valve core, 15 - igniter, 16 - first open blocking ring, 17 - second open blocking ring, 18 - third elastic return member, 19 - sealing ring, 20 - pressure signal feedback device, 21 - plug

[0032] 101 - fire extinguishing agent passage, 102 - gas generating cavity, 103 - gas conveying passage, 104 - second through hole, 105 - step surface

[0033] 111 - valve passage, 112 - core body, 113 - top rod, 114 - sealing gasket, 115 - second elastic return member

[0034] 121 - upper positioning groove, 122 - lower positioning groove, 123 - first through hole

[0035] 141 - mounting hole, 142 - guide inclined surface

[0036] 201 - switch valve seat, 202 - micro switch, 203 - trigger body DETAILED DESCRIPTION

[0037] The utility model will be described in further detail below with reference to the accompanying drawings Figures 1-7 The utility model will be described in further detail below with reference to the accompanying drawings

[0038] Embodiment 1

[0039] Non-pressure storage type container valve, including valve body 10, be equipped with fire extinguishing agent passage 101 that passes through its upper and lower end faces on valve body 10, fire extinguishing agent passage 101 is used to transport fire extinguishing agent,

[0040] Fire extinguishing agent passage 101 is installed with the valve core 11 that can move up and down, and the support block 12 is screwed tightly at the outlet end of fire extinguishing agent passage 101, and the first elastic return member 13 is installed between the valve core 11 and the support block 12, the first elastic return member 13 is spring, and the first elastic return member 13 can make the valve core 11 reset in time after fire extinguishing agent injection is finished, when the valve core 11 moves downwards and is topped to the support block 12, the valve passage 111 on the valve core 11 is opened, and fire extinguishing agent will flow to the outlet end of fire extinguishing agent passage 101 through the valve passage 111;

[0041] The valve core 11 can also be used as the filling inlet of fire extinguishing agent, and the filling connector is installed at the lower end of valve body 10 and opens the valve core 11, the valve passage 111 of the valve core 11 is opened, and fire extinguishing agent can be filled into the fire extinguishing agent bottle body, after filling, the valve core 11 will be automatically closed under the action of the elastic force, and the fire extinguishing agent in the fire extinguishing agent bottle body will not flow into the valve core 11 or below the valve core 11, and the resistance of the valve core 11 is small.

[0042] The valve body 10 is provided with a gas production cavity 102 and a gas delivery channel 103. The upper end of the gas delivery channel 103 penetrates the upper end surface of the valve body 10 and is oriented in the same direction as the inlet end of the fire extinguishing agent channel 101. A plug 14 is installed on the gas delivery channel 103 and seals the gas delivery channel 103. The lower end of the gas delivery channel 103 is in communication with the gas production cavity 102. A gas production assembly for producing high-pressure gas is installed on the gas production cavity 102. When the gas production assembly is activated, a large amount of high-pressure gas is produced. The high-pressure gas pushes open the plug 14 and enters the fire extinguishing agent bottle body. The fire extinguishing agent in the fire extinguishing agent bottle body is pressed against the valve core 11 under the action of the high-pressure gas. The valve core 11 moves downward under the action of the force and abuts against the support block 12. The valve core 11 is opened, releasing the fire extinguishing agent.

[0043] When the container valve is inverted on the fire extinguishing agent bottle body, the lower end of the valve core 11 is not in contact with the liquid fire extinguishing agent. The resistance to the downward movement of the valve core 11 is small. The high-pressure gas produced by the gas production assembly can easily push open the valve core 11. The phenomenon of the valve core 11 being stuck due to the residue of the fire extinguishing agent or other factors is effectively avoided. The smoothness of the valve opening operation is ensured. The response speed and reliability of the valve in emergency situations are improved. In emergency situations such as fire, the container valve can be opened in time to release the fire extinguishing agent, enhancing the fire extinguishing efficiency.

[0044] A first opening retaining ring 16 is also installed at the lower end of the fire extinguishing agent channel 101. A clamping groove is provided on the inner wall of the fire extinguishing agent channel 101. The first opening retaining ring 16 is clamped in the clamping groove. The first opening retaining ring 16 is used to axially position the valve core 11. The first opening retaining ring 16 is located above the support block 12. The first elastic return member 13 passes through the first opening retaining ring 16 and is connected to the support block 12. The first opening retaining ring 16 precisely axially positions the valve core 11. This allows the valve core 11 to move only in the specified axial direction during upward and downward movement, avoiding problems such as poor sealing and smooth opening due to deviation, ensuring the reliability and stability of the valve operation.

[0045] An upper positioning groove 121 for positioning the first elastic return member 13 is provided on the upper end of the support block 12. A lower positioning groove 122 for installing and removing a tool is provided on the lower end of the support block 12. The upper positioning groove 121 and the lower positioning groove 122 are connected by a first through hole 123. The upper positioning groove 121 ensures that the first elastic return member 13 is always in the correct position during installation and operation, avoiding deviation or shaking, thereby ensuring that the first elastic return member 13 can stably provide a return force to the valve core 11, making the return action of the valve core 11 more reliable and improving the overall working stability and sealing performance of the valve. During installation, the tool can be more easily and accurately installed in the specified position by cooperating with the lower positioning groove 122

[0046] The second open check ring 17 is installed at the upper end of the gas delivery channel 103, and the gas delivery channel 103 is also provided with a clamping groove, and the second open check ring 17 is clamped in the clamping groove. The third elastic reset member 18 is installed between the second open check ring 17 and the plug 14, and the third elastic reset member 18 is a spring. On the one hand, the third elastic reset member 18 prevents the plug 14 from being blown into the fire extinguishing agent bottle by high-pressure gas, and on the other hand, the third elastic reset member 18 enables the gas production assembly to reset in time after the gas production is completed, thereby avoiding the fire extinguishing agent from entering the gas production cavity 102. The lower end of the plug 14 is sealed to the lower end of the gas delivery channel 103 by the sealing ring 19.

[0047] The gas production assembly includes an igniter 15 and gunpowder, and the gunpowder is filled in the gas production cavity 102. The igniter 15 is threadedly fastened to the port of the gas production cavity 102, and the ignition end of the igniter 15 extends into the gas production cavity 102. When the container valve needs to be started, the igniter 15 is powered to generate an electric spark, the electric spark ignites the gunpowder, and the gunpowder explodes to produce high-pressure gas.

[0048] Embodiment 2

[0049] Embodiment 2 has basically the same characteristics as embodiment 1, except that the valve core 14 is installed in the fire extinguishing agent channel 101 and can move up and down. The valve core 14 is axially provided with an installation hole 141 extending through both ends thereof, and the valve core 11 is installed on the installation hole 141 in a threaded connection manner. When the valve core 14 moves, the valve core 11 will move up and down synchronously. By installing the valve core 11 on the valve core 14, the valve core 14 provides a stable movement carrier for the valve core 11 by using the larger structure size and more stable movement track of the valve core 14. Compared with the separate setting of the valve core 11, the valve core 11 can better maintain axial stability during the up and down movement in this structure, and the shaking and deviation are reduced, thereby improving the precision of the opening and closing actions of the valve core 11 and ensuring the reliability of the valve.

[0050] The valve core 11 includes a core body 112 and a top rod 113, the core body 112 is fastened on the valve core 14 and is in sealing connection with the valve core 14, the core body 112 is provided with a valve passage 111, and the top rod 113 is installed on the valve passage 111. The top rod 114 is in T-shaped cross section at the top, the top rod 113 is provided with a sealing pad 114 at the upper end surface for sealing the port of the valve passage 111, the sealing pad 114 is sleeved on the top rod 113 and is axially limited at the top of the top rod 113, the lower end of the top rod 113 is provided with a second elastic reset member 115 supported on the core body 112, the second elastic reset member 115 is a spring, the spring is in pagoda shape, the lower end of the top rod 113 is provided with a support portion, the second elastic reset member 115 is sleeved on the top rod 113, one end of the second elastic reset member 115 is abutted on the core body 112, and the other end of the second elastic reset member 115 is abutted on the support portion. The core body 112 is fastened and in sealing connection with the valve core 14, and the risk of leakage of the fire extinguishing agent is reduced. The sealing pad 114 is installed on the top rod 113 to seal the port of the valve passage 111, and in the non-injection state, the leakage of the fire extinguishing agent can be effectively prevented, and the safety of the fire extinguishing system in storage is ensured.

[0051] The valve body 10 is further provided with a pressure signal feedback device 20, the pressure signal feedback device 20 includes a switch valve seat 201, a micro switch 202 and a trigger body 203, the trigger body 203 is a spherical body, the micro switch 202 is fastened on the switch valve seat 201, the switch valve seat 201 is screwed on the valve body 10, the valve body 10 is provided with a second through hole 104 in communication with the fire extinguishing agent passage 101, the trigger body 203 is installed on the second through hole 104 and is arranged between the valve core 14 and the micro switch 202, the valve core 14 moves downward and pushes the trigger body 203 to abut against the micro switch 202, and the micro switch 202 provides information to the remote monitoring personnel, and feedbacks that the container valve is started and injection occurs. Through the linkage of the pressure switch 20 and the valve core 14, support is provided for intelligent control of the fire extinguishing system. It can be linked with other fire fighting equipment such as a fire alarm system, a ventilation system and the like. Once the pressure switch 20 detects that the valve is opened, other related equipment can be automatically triggered to work cooperatively, automatic and intelligent operation of the fire extinguishing system is realized, and fire extinguishing efficiency and safety are improved.

[0052] The top end of the fire extinguishing agent channel 101 is provided with a stepped surface 105 for limiting the axial valve core 14, when the valve core 14 is limited by the stepped surface 105, the lower end of the valve core 14 extends to the second through hole 104, and the lower end of the valve core 14 is provided with a guide inclined surface 142 for obliquely pushing the trigger body 203. When the valve core 14 is limited by the stepped surface 105 and the lower end extends to the second through hole 104, and is provided with the guide inclined surface 142. When the valve core 14 moves downward, the guide inclined surface 142 can obliquely push the trigger body 203, and this design optimizes the mechanism of the trigger pressure switch 20. Compared with direct impact, the pushing mode of the guide inclined surface 142 makes the trigger process more stable and smooth, reduces the risk of damage of the trigger body 203 and the micro switch 202 due to excessive instantaneous impact force, and improves the accuracy and reliability of the trigger of the pressure switch 20.

[0053] Example 3

[0054] The fire extinguishing device comprises a fire extinguishing agent bottle body and the non-pressure storage type container valve in Example 1 or 2.

Claims

1. A non-pressurized container valve, comprising a valve body (10), wherein the valve body (10) is provided with a fire extinguishing agent channel (101) penetrating its upper and lower end faces, characterized in that: A valve core (11) that can move up and down is installed in the extinguishing agent channel (101). A support block (12) is fixedly attached to the outlet end of the extinguishing agent channel (101). A first elastic reset member (13) is installed between the valve core (11) and the support block (12). When the valve core (11) moves downward and hits the support block (12), the valve channel (111) on the valve core (11) is opened. The valve body (10) is provided with a gas generation chamber (102) and a gas delivery channel (103). The upper end of the gas delivery channel (103) passes through the upper end face of the valve body (10) and faces the same direction as the inlet end of the extinguishing agent channel (101). A plug (21) is installed on the gas delivery channel (103). The lower end of the gas delivery channel (103) is connected to the gas generation chamber (102). A gas generation component for generating high-pressure gas is installed on the gas generation chamber (102).

2. The non-pressurized container valve according to claim 1, characterized in that: A valve core (14) that can move up and down is installed in the fire extinguishing agent channel (101). The valve core (14) has mounting holes (141) that pass through both ends of it in the axial direction. The valve core (11) is installed in the mounting holes (141). The valve core (14) drives the valve core (11) to move up and down synchronously.

3. The non-pressurized container valve according to claim 2, characterized in that: The valve core (11) includes a core body (112) and a push rod (113). The core body (112) is fastened to the valve core (14) and sealed to it. The core body (112) is provided with a valve passage (111). The push rod (113) is installed on the valve passage (111). A sealing gasket (114) for sealing the port of the valve passage (111) is installed on the upper end face of the push rod (113). A second elastic reset member (115) supported on the core body (112) is installed at the lower end of the push rod (113).

4. The non-pressurized container valve according to claim 1, characterized in that: The lower end of the extinguishing agent channel (101) is also equipped with a first opening retaining ring (16), which is located above the support block (12). The first elastic reset member (13) passes through the first opening retaining ring (16) and is connected to the support block (12).

5. The non-pressurized container valve according to claim 1, characterized in that: The upper end of the support block (12) is provided with an upper positioning groove (121) for positioning the first elastic reset member (13), and the lower end of the support block (12) is provided with a lower positioning groove (122) for installing and disassembling the tooling. The upper positioning groove (121) and the lower positioning groove (122) are connected by a first through hole (123).

6. The non-pressurized container valve according to claim 1, characterized in that: A second opening retaining ring (17) is installed at the upper end of the gas transmission channel (103). A third elastic reset member (18) is installed between the second opening retaining ring (17) and the plug (21). The lower end of the plug (21) is sealed at the lower end of the gas transmission channel (103) by a sealing ring (19).

7. The non-pressurized container valve according to claim 1, characterized in that: The gas generating assembly includes an igniter (15) and gunpowder. The gunpowder is filled in the gas generating chamber (102). The igniter (15) is fastened to the port of the gas generating chamber (102), and the ignition end of the igniter (15) extends into the gas generating chamber (102).

8. The non-pressurized container valve according to claim 2 or 3, characterized in that: A pressure signal feedback device (20) is also installed on the valve body (10). The pressure signal feedback device (20) includes a switch valve seat (201), a micro switch (202), and a trigger (203). The micro switch (202) is fastened to the switch valve seat (201). The valve body (10) is provided with a second through hole (104) that communicates with the extinguishing agent channel (101). The trigger (203) is installed on the second through hole (104) and located between the valve core (14) and the micro switch (202). The valve core (14) moves downward and pushes the trigger (203) against the micro switch (202).

9. The non-pressurized container valve according to claim 8, characterized in that: The top of the extinguishing agent channel (101) is provided with a stepped surface (105) for an axially limiting valve core (14). When the valve core (14) is limited to the stepped surface (105), the lower end of the valve core (14) extends to the second through hole (104). The lower end of the valve core (14) is provided with a guide slope (142) for tilting and pushing the trigger body (203).

10. A fire extinguishing device, comprising a fire extinguishing agent cylinder, characterized in that: Includes the non-pressurized container valve as described in any one of claims 1-9.

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