An external pressure storage type long distance conveying fire extinguishing system

Abstract

The application discloses an external pressure storage type long-distance conveying fire extinguishing system, which comprises a nitrogen cylinder, a cylinder head valve, a fire extinguishing agent cylinder and a container valve. The cylinder head valve is connected with a nitrogen conveying pipe on the side, and is arranged on the nitrogen cylinder to convey the nitrogen in the nitrogen cylinder to the nitrogen conveying pipe. The container valve is arranged on the fire extinguishing agent cylinder, a pressure reducing and stabilizing valve is arranged on the side of the container valve, the pressure reducing and stabilizing valve is connected with the end of the nitrogen conveying pipe, a spray pipe is arranged on the side of the container valve, and the container valve controls the fire extinguishing gas in the fire extinguishing agent cylinder to be output from the spray pipe. One nitrogen cylinder and one fire extinguishing agent cylinder are connected to form a fire extinguishing group, a plurality of fire extinguishing groups are arranged, and the two cylinder head valves of the adjacent two fire extinguishing groups are connected through a gas connecting pipe. The nitrogen in the nitrogen cylinder can be stably conveyed to the fire extinguishing agent cylinder by arranging the nitrogen cylinder and the fire extinguishing agent cylinder, so that the fire extinguishing gas can be stably sprayed.

Description

Technical Field

[0001] This invention relates to the field of fire extinguishing technology, and in particular to an externally pressurized long-distance delivery fire extinguishing system. Background Technology

[0002] Existing fire extinguishing systems, such as suspended fire extinguishing devices and heptafluoropropane storage tank fire extinguishing systems, all have an actuator installed at the fire extinguishing nozzle. When a fire occurs, the actuator activates the fire extinguishing device, causing it to release extinguishing gas to spray at the fire source and extinguish the fire.

[0003] Existing fire extinguishing systems on the market use container valves for extinguishing agent storage cylinders that can be manually, electrically, or pneumatically activated. However, after the extinguishing device is activated, the extinguishing gas release is unstable, resulting in poor extinguishing effectiveness. In view of this, the inventors conducted in-depth research to address the aforementioned deficiencies in the prior art, leading to this invention. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, the objective of the present invention is to provide an externally pressurized long-distance delivery fire extinguishing system, which, by setting up a nitrogen cylinder and a fire extinguishing agent cylinder, allows nitrogen gas in the nitrogen cylinder to be stably delivered to the fire extinguishing agent cylinder, resulting in a stable ejection of the fire extinguishing gas.

[0005] To achieve the above objectives, this invention proposes an externally pressurized long-distance delivery fire extinguishing system, comprising a nitrogen cylinder, a cylinder head valve, a fire extinguishing agent cylinder, and a container valve;

[0006] The side of the cylinder valve is connected to a nitrogen delivery pipe. The cylinder valve is installed on the nitrogen cylinder to deliver the nitrogen in the nitrogen cylinder to the nitrogen delivery pipe. The container valve is installed on the extinguishing agent cylinder. A pressure reducing and stabilizing valve is installed on the side of the container valve. The pressure reducing and stabilizing valve is connected to the end of the nitrogen delivery pipe. A discharge pipe is installed on the side of the container valve. The container valve controls the extinguishing gas in the extinguishing agent cylinder to be output from the discharge pipe.

[0007] Furthermore, a nitrogen cylinder and a fire extinguishing agent cylinder are connected to form a fire extinguishing group. Multiple fire extinguishing groups are set up, and the two cylinder head valves of two adjacent fire extinguishing groups are connected through a gas connection pipe.

[0008] Furthermore, the discharge pipe of each fire extinguishing group is connected to a manifold.

[0009] Furthermore, a safety relief assembly and a low-leakage, high-seal valve are installed on the manifold.

[0010] Furthermore, the bottle head valve includes a bottle head valve body, a bottle head valve cap, a pilot valve seat, a pilot valve core, a pilot directional elastic element, a lifting valve core, and a compression elastic element. The bottle head valve cap is disposed on the bottle head valve body and has an air vent. An upper connecting protrusion is also provided on the bottle head valve cap. The pilot valve seat is disposed at the bottom of the bottle head valve cap and has a vent hole inside. The pilot valve core includes a pilot core body, which is movably disposed within the pilot valve seat so that the vent hole is located above or below the pilot core body. One end of the pilot directional elastic element is connected to the pilot core body, and the other end is connected to the pilot valve seat. The lifting valve core is movable within the bottle head valve body, forming a gas chamber between the lifting valve core and the bottle head valve cap. A gas supply channel communicating with the gas chamber is provided within the lifting valve core. One end of the compression elastic element is connected to the bottle head valve cap, and the other end is connected to the lifting valve core.

[0011] Furthermore, the fire extinguishing group includes a primary fire extinguishing group, a middle fire extinguishing group, and a secondary fire extinguishing group. The cylinder valve of the middle fire extinguishing group is connected to the cylinder valve of the primary fire extinguishing group through a first gas connection pipe, and the cylinder valve of the secondary fire extinguishing group is connected to the cylinder valve of the middle fire extinguishing group through a second gas connection pipe.

[0012] Furthermore, the upper connecting protrusion of the cylinder valve of the first fire extinguishing group is connected to the electromagnetic starter; the upper connecting protrusion of the cylinder valve of the middle fire extinguishing group is connected to the first pneumatic start valve; and the upper connecting protrusion of the cylinder valve of the tail fire extinguishing group is connected to the second pneumatic start valve.

[0013] Furthermore, the cylinder head valve of the first fire extinguishing unit is connected to the third pneumatic start valve, and the third pneumatic start valve is connected to the nitrogen supply cylinder group.

[0014] Furthermore, the pressure reducing and stabilizing valve includes a pressure stabilizing valve housing, a fixing component, a pressure stabilizing elastic component, and a moving component; the fixing component includes a fixing ring and a fixing post, the fixing ring is disposed on the inner side wall of the pressure stabilizing valve housing, a first vent hole is provided in the fixing ring, one end of the fixing post is fixedly connected to the fixing ring, and the other end of the fixing post forms a plug; one end of the pressure stabilizing elastic component is disposed on the fixing ring, and the other end of the pressure stabilizing elastic component is disposed on one side of the moving component, the moving component is movably disposed in the pressure stabilizing valve housing, a second vent hole is provided in the moving component for inserting the plug, and a vent passage is formed between the second vent hole and the outer side of the plug.

[0015] Furthermore, a first limiting step is provided inside the pressure regulating valve housing, and a limiting block is formed at the end of the moving part near the pressure regulating elastic element, which abuts against the first limiting step.

[0016] Furthermore, a pressure-bearing surface is formed inside the limiting block.

[0017] Furthermore, a second limiting step is provided inside the pressure regulating valve housing, and one side of the fixing ring abuts against the second limiting step.

[0018] Furthermore, it also includes a receiving component, which is connected to the pressure regulating valve housing, with the end of the receiving component abutting against the other side of the retaining ring.

[0019] Furthermore, a sealing ring mounting groove is provided on the outer wall of the fixing ring.

[0020] Furthermore, the inner diameter of the plug gradually decreases from near the retaining ring to far away from the retaining ring, so that the end of the plug forms an arc surface.

[0021] Furthermore, it also includes a left connector, one end of which is connected to the left side of the pressure regulating valve housing, and the other end of which forms a left connecting thread for connection with the pipe body.

[0022] Furthermore, it also includes a right connector, one end of which is connected to the right side of the receiving part, and the other end of which forms a right connection thread for connection with the valve body.

[0023] Furthermore, a one-way valve is installed at the connection point between the right connector and the receiving component.

[0024] Furthermore, the pressure-stabilizing elastic element is a compression spring.

[0025] Furthermore, a lower connecting boss is provided at the bottom of the bottle head valve cap, and a lower connecting internal thread is provided inside the lower connecting boss. An upper connecting external thread that mates with the lower connecting internal thread is provided at the upper end of the pilot valve seat.

[0026] Furthermore, the compression elastic element is sleeved on the lower connecting boss.

[0027] Furthermore, multiple upward-sloping vent holes are provided on the side of the pilot valve seat.

[0028] Furthermore, a sealing ring is provided on the side of the pilot core.

[0029] Furthermore, an upper valve core rod is provided at the upper end of the pilot valve core. The upper valve core rod is connected to the pressure rod of the pneumatic start valve and is driven to descend by the pressure rod.

[0030] Furthermore, a lower valve core rod is provided at the lower end of the pilot valve core; the pilot valve core is sleeved on the lower valve core rod.

[0031] Furthermore, a clearance perforation is provided at the bottom of the pilot valve seat for the lower valve core rod to pass through.

[0032] Furthermore, a limiting groove is formed at the upper end of the lifting valve core for the lower end of the compression elastic element to be inserted.

[0033] Furthermore, a valve connecting seat is formed inside the bottle head valve body, and the valve core support includes an upper sealing section and a lower abutment section. The side of the upper sealing section can move along the inner wall of the bottle head valve body. The inner diameter of the lower abutment section is smaller than the inner diameter of the upper sealing section. A support space is formed between the lower abutment section and the upper sealing section. A gas inlet is provided on the side of the bottle head valve body. The gas inlet is connected to the support space and is connected to a nitrogen delivery pipe.

[0034] Furthermore, an annular protrusion is provided at one end of the valve connecting seat near the valve core; a sealing buffer pad is provided in the lower abutment section to abut against the annular protrusion.

[0035] Furthermore, a flow guide is provided on the lower abutment section. The flow guide includes a flow guide rod and a flow guide protrusion. The flow guide rod is rotatably mounted on the lower abutment section, and the flow guide protrusion is fixedly connected to the end of the flow guide. The side of the flow guide protrusion abuts against the inner wall of the valve connection seat. A flow guide hole is provided inside the flow guide.

[0036] Furthermore, a connecting groove is provided inside the lifting valve core for threaded connection with the guide rod.

[0037] Furthermore, an anti-blocking component is installed inside the connecting groove, and a valve core air supply channel is formed inside the anti-blocking component.

[0038] Furthermore, the anti-clogging component is made of hydrophobic plastic.

[0039] Furthermore, a polytetrafluoroethylene film is applied to the surface of the anti-clogging component.

[0040] Furthermore, the valve core air supply channel includes an upper guide channel, a middle connecting channel, and a lower guide channel. The inner diameter of the upper guide channel gradually increases from the direction close to the middle connecting channel to the direction far from the middle connecting channel, and an upper guide surface is formed inside the upper guide channel. The upper end of the middle connecting channel is connected to the upper guide channel, and the lower end of the middle connecting channel is connected to the lower guide channel. The inner diameter of the lower guide channel gradually increases from the direction close to the middle connecting channel to the direction far from the middle connecting channel, and a lower guide surface is formed inside the lower guide channel.

[0041] Furthermore, the lifting valve core also includes a middle connecting section, the upper end of which is fixedly connected to the upper sealing section, and the lower end of which is fixedly connected to the lower abutting section.

[0042] Furthermore, an upper frustum is provided at the upper end of the middle joint section, and a lower frustum is provided at the lower end of the middle joint section.

[0043] Furthermore, a pressure gauge interface is provided on the side of the bottle head valve body.

[0044] Furthermore, the pneumatic start valve is equipped with a pressure-applying vertical rod connected to the upper valve core rod, and a pressure-applying horizontal channel is provided on the side of the pneumatic start valve, with an air pipe connector formed at the end of the pressure-applying horizontal channel.

[0045] Furthermore, an electromagnetic interface is provided on the side of the bottle head valve body. The electromagnetic interface is located below the valve connector and is equipped with an electromagnetic drive device. The electromagnetic drive device is connected to the gas pipe connector through a pressure tube.

[0046] Furthermore, the electromagnetic drive device includes an electromagnetic valve body, an electromagnetic valve core, a coil cover, and an electromagnetic elastic element. The electromagnetic valve body is connected to an electromagnetic interface. The electromagnetic valve body is provided with an inlet delivery channel, a gas receiving chamber, and an outlet delivery channel. One end of the inlet delivery channel is connected to the bottle head valve body, and the gas receiving chamber is connected to the other end of the inlet delivery channel. The electromagnetic valve core can be moved and installed in the electromagnetic valve body so that the gas receiving chamber is connected to or not connected to the outlet delivery channel. The coil cover is installed on the electromagnetic valve body, and a coil is installed inside the coil cover. One end of the electromagnetic elastic element is installed inside the coil cover, and the other end of the electromagnetic elastic element is installed on the electromagnetic valve core so that the end of the electromagnetic valve core abuts against the outlet delivery channel.

[0047] Furthermore, a sealing block is provided at the end of the solenoid valve core; a frustum-shaped boss is formed in the gas receiving cavity, and a gas outlet is formed in the frustum-shaped boss that communicates with the gas delivery channel. The diameter of the end of the frustum-shaped boss near the sealing block is smaller than the diameter of the sealing block; the sealing block can abut against the end of the frustum-shaped boss to block the gas outlet.

[0048] Furthermore, a hexagonal nut is provided at the end of the coil cover, and the hexagonal nut is connected to the screw rod. The end of the screw rod is located inside the coil cover, and the end of the electromagnetic elastic element abuts against the end of the screw rod.

[0049] Furthermore, a manual air outlet channel is provided inside the solenoid valve body, one end of which is connected to the gas receiving cavity. A manual drive valve is provided on the side of the solenoid valve body to drive the manual air outlet channel to be connected to or disconnected from the air delivery channel.

[0050] Furthermore, the manual drive valve includes a manual valve body and a lever. The manual valve body is located on the side of the solenoid valve body, and the lever is movably located within the manual valve body. Pulling the lever connects or disconnects the manual air outlet channel from the air outlet delivery channel.

[0051] Furthermore, a first plug and a second plug are provided on the lever. The first plug is located on one side of the manual air outlet channel, and the second plug is located on the other side of the manual air outlet channel.

[0052] Furthermore, both the first and second plugs are equipped with sealing rings.

[0053] Furthermore, a limiting abutment is provided on the side of the solenoid valve body, the end of the manual valve body abuts against the limiting abutment, and the end of the second plug abuts against the limiting abutment.

[0054] Furthermore, the manually operated valve also includes a pull pin that passes through the manual valve body and the lever to prevent the lever from being pulled.

[0055] Furthermore, a one-way valve is also provided on the side of the solenoid valve body. The one-way valve includes a one-way valve body, a one-way valve core, and a one-way elastic element. The one-way valve core is movably disposed in the one-way valve body. One end of the one-way elastic element is disposed in the one-way valve body, and the other end of the one-way elastic element abuts against the one-way valve core to close the gas delivery channel of the one-way valve core.

[0056] Furthermore, an air pipe interface for connecting to the pressurized air pipe is provided on the outside of the one-way valve body.

[0057] Furthermore, the container valve includes a valve body, an input port, an output port, a valve core, a valve cover, a reset elastic element, an interruption release mechanism, and a constant pressure opening valve. The input port is located on the side of the valve body and is connected to a pressure reducing and stabilizing valve. The output port is located on the side of the valve body. The valve core is movably located within the valve body so that the input port and output port can be connected or disconnected. The valve cover is located on the valve body, and an air chamber is formed between the valve cover and the valve core. One end of the reset elastic element abuts against the valve cover, and the other end of the reset elastic element abuts against the valve core. The interruption release mechanism is located on the valve cover to release the gas in the air chamber. The constant pressure opening valve is located on the side of the valve body and below the valve core. The constant pressure opening valve is connected to the interruption release mechanism through a pressurized air pipe to release the gas in the air chamber.

[0058] Furthermore, a core groove is formed on the upper part of the valve core for the end of the reset elastic element to be inserted, and a guide screw is provided on the lower part of the valve core. A guide hole is formed inside the guide screw, and the guide hole is connected to the air chamber through the core groove.

[0059] Furthermore, a valve sealing seat is formed inside the valve body; the lower part of the valve core abuts against the valve sealing seat, and the side of the flow guide screw abuts against the inner side of the valve sealing seat.

[0060] Furthermore, a gasket is provided between the lower part of the valve core and the guide screw, and a sealing ring is provided between the gasket and the valve sealing seat.

[0061] Furthermore, a main sealing gasket is provided at the lower part of the valve core, and the inner side of the main sealing gasket abuts against the gasket; a first mating block is provided on the gasket, and a second mating block that mates with the first mating block is provided on the main sealing gasket.

[0062] Furthermore, a raised ring is provided at the upper end of the valve sealing seat, and the outer side of the main sealing gasket abuts against the raised ring.

[0063] Furthermore, it also includes a siphon tube, which is installed inside the valve body. A lower gas channel is formed between the outer wall of the siphon tube and the inner wall of the valve body, and the siphon tube extends into the extinguishing agent bottle.

[0064] Furthermore, the siphon tube rests against the bottom of the valve sealing seat, and a sealing ring is provided between the siphon tube and the bottom of the valve sealing seat.

[0065] Furthermore, the interruption release mechanism includes an actuator, an interruption valve seat, an interruption valve core, and an interruption elastic element. The actuator is mounted on the valve cover, and a pressure rod is movably mounted inside the actuator. A pressure channel is provided on the upper part of the actuator, one end of which is used to connect to a pressure pipe, and the other end of which is located at the end of the pressure rod. A venting channel is provided at the lower part of the actuator. The interruption valve seat is mounted on the valve cover, and a pressure relief hole is provided on the side of the interruption valve seat. The interruption valve core is movably mounted inside the interruption valve seat so that the pressure relief hole is located on the upper or lower part of the interruption valve core. The interruption valve core is connected to the pressure rod and is moved by the pressure rod. One end of the interruption elastic element abuts against the interruption valve core, and the other end of the interruption elastic element abuts against the interruption valve seat.

[0066] Furthermore, a pipe connector for connecting to the pressurized air pipe is provided on the side of the starter.

[0067] Furthermore, a manual start device is provided at the end of the starter.

[0068] Furthermore, the interrupt valve core includes a core body and an upper core rod. The side of the core body is disposed on the inner wall of the interrupt valve seat, and the upper core rod is fixedly connected to the upper end of the core body. The upper core rod is connected to the lower end of the pressure rod.

[0069] Furthermore, a sealing ring is installed on the side of the core.

[0070] Furthermore, the interrupt valve core also includes a lower core rod, which is fixedly connected to the lower end of the core body; a clearance hole is provided at the bottom of the interrupt valve seat for the lower core rod to be inserted.

[0071] Furthermore, the interrupt valve seat is detachably mounted on the valve cover, and a sealing ring is provided at the connection between the interrupt valve seat and the valve cover.

[0072] Furthermore, a constant pressure opening valve is installed on the side of the valve body, and the pressurized air pipe is connected to the constant pressure opening valve.

[0073] Furthermore, the constant pressure opening valve includes a first constant pressure connector, a second constant pressure connector, a constant pressure core, and a constant pressure elastic element; the first constant pressure connector is disposed on the side of the valve body, and a first constant pressure air passage is formed inside the first constant pressure connector; the second constant pressure connector is disposed on the first constant pressure connector, and a second constant pressure air passage communicating with the first constant pressure air passage is formed inside the second constant pressure connector; the constant pressure core is movably disposed inside the first constant pressure connector and the second constant pressure connector; one end of the constant pressure core is connected to the constant pressure elastic element, and the other end of the constant pressure elastic element abuts against the second constant pressure connector; the constant pressure elastic element drives the constant pressure core to abut against the first constant pressure air passage.

[0074] Furthermore, the reset elastic element is sleeved on the outside of the interrupt valve seat.

[0075] Furthermore, a pressure gauge connector is provided on the side of the valve body. The pressure gauge connector includes a housing, a sealing core, and a sealing elastic element. A sealing channel is formed inside the housing, which includes a cylindrical section, a frustum section, a protruding section, and a connecting section. One end of the frustum section is connected to the cylindrical section, and the inner diameter of the frustum section gradually decreases from the direction closer to the cylindrical section to the direction farther away from the cylindrical section. One end of the protruding section is connected to the other end of the frustum section, and the connecting section is connected to the other end of the protruding section. The sealing core includes a sealing seat and a sealing head. The sealing seat is movably disposed in the cylindrical section, and an air passage is formed inside the sealing seat. The sealing head is fixedly connected to the sealing seat, and a sealing ring is provided on the side of the sealing head for abutting against the side of the frustum section. A trigger rod is formed at the end of the sealing head, protruding from the frustum section and located in the protruding section. One end of the sealing elastic element is connected to the end of the sealing seat, and the other end of the sealing elastic element is used to connect to the valve body to keep the sealing elastic element in a compressed state.

[0076] Furthermore, the air passage includes a horizontal air passage and multiple vertical air passages, with the ends of the multiple vertical air passages connected to the horizontal air passage.

[0077] Furthermore, the connection point between the horizontal and vertical air passages forms a pressure surface.

[0078] Furthermore, the longitudinal section of the pressure surface is V-shaped.

[0079] Furthermore, a connection port is provided on the side of the valve body, and a first internal connection thread is provided on the inner side of the connection port; an external connection thread is provided on the outer side of the outer shell to connect with the first internal connection thread.

[0080] Furthermore, an outer abutment surface is provided on the outer side of the outer casing to abut against the outer side of the valve body.

[0081] Furthermore, a sixth sealing ring is provided between the outer abutment surface and the valve body.

[0082] Furthermore, a limiting groove is provided on the inner side of the connection port for connecting the end of the sealing elastic element.

[0083] Furthermore, a second internal connecting thread is provided on the inner side of the connecting section for connection with a pressure gauge.

[0084] With the above structure, the externally pressurized long-distance delivery fire extinguishing system of the present invention has at least the following features:

[0085] Beneficial effects:

[0086] First, during use, the cylinder valve drives the gas in the nitrogen cylinder to be delivered to the extinguishing agent cylinder through the nitrogen delivery pipe. Because a pressure reducing and stabilizing valve is installed on the side of the container valve, and the pressure reducing and stabilizing valve is connected to the end of the nitrogen delivery pipe, the pressure of the nitrogen is relatively stable after passing through the pressure reducing and stabilizing valve. The nitrogen is stably delivered to the extinguishing agent cylinder, so that after the nitrogen and the extinguishing agent are mixed, the extinguishing gas is output stably, and the extinguishing effect is better.

[0087] Second, by setting up multiple fire extinguishing groups, and with each group's discharge pipe connected to a manifold, a large amount of extinguishing gas can be discharged to the fire source to effectively extinguish the fire. Attached Figure Description

[0088] Figure 1 This is a schematic diagram of the structure of an externally pressurized long-distance delivery fire extinguishing system according to an embodiment of the present invention;

[0089] Figure 2 This is a schematic diagram of another externally pressurized long-distance delivery fire extinguishing system according to an embodiment of the present invention;

[0090] Figure 3 This is a schematic diagram showing the connection between the electromagnetic starter and the bottle head valve according to an embodiment of the present invention;

[0091] Figure 4 This is a schematic diagram showing the connection between the pneumatic start valve and the bottle head valve according to an embodiment of the present invention;

[0092] Figure 5 This is a schematic diagram showing the connection between the inner lifting valve core and the pilot valve core of the bottle head valve according to an embodiment of the present invention.

[0093] Figure 6 This is a schematic diagram showing the connection between the electromagnetic drive device and the bottle head valve according to an embodiment of the present invention;

[0094] Figure 7 This is a cross-sectional view of an electromagnetic drive device according to an embodiment of the present invention;

[0095] Figure 8 This is a cross-sectional view of the electromagnetic drive device according to an embodiment of the present invention from another angle;

[0096] Figure 9 This is a schematic diagram of the structure of a container valve according to an embodiment of the present invention;

[0097] Figure 10 for Figure 9 A magnified view of a portion of the image;

[0098] Figure 11 This is a schematic diagram showing the connection between the constant pressure opening valve and the interruption release mechanism of the container valve according to an embodiment of the present invention;

[0099] Figure 12 This is a schematic diagram of the structure of the interruption release mechanism of the container valve fixed on the valve cover according to an embodiment of the present invention;

[0100] Figure 13 This is a schematic diagram of the pressure reducing and stabilizing valve according to an embodiment of the present invention;

[0101] Figure 14 This is a schematic diagram of the structure of the pressure reducing and stabilizing valve according to an embodiment of the present invention, showing the plug inserted into the moving part;

[0102] Figure 15 This is a schematic diagram of the container valve from another angle according to an embodiment of the present invention;

[0103] Figure 16 This is a schematic diagram of the structure of a pressure gauge connector according to an embodiment of the present invention;

[0104] Figure 17 This is a structural schematic diagram of another state of the pressure gauge connector according to an embodiment of the present invention.

[0105] Label Explanation

[0106] Nitrogen cylinder 1, cylinder head valve 2, cylinder head valve body 21, valve connecting seat 211, annular convex ring 2111, cylinder head valve cap 22, gas outlet 221, upper connecting convex seat 222, gas chamber 223, lower connecting convex seat 224, pilot valve seat 23, vent hole 231, clearance perforation 232, pilot valve core 24, pilot core body 241, upper valve core rod 242, lower valve core rod 243, pilot directional component 25, lifting valve core 26, gas supply channel 261, limiting groove 262, upper sealing section 263, lower abutment section 264, sealing buffer pad 2641, lifting space 265, gas inlet 2651, flow guide 266, flow guide rod 2661, flow guide protrusion 2662, flow guide hole 2663, anti-blocking component 267, valve core gas supply channel 2671, middle Components: 268 (connecting section), 27 (compression elastic element), 28 (electromagnetic drive device), 281 (electromagnetic valve body), 2811 (inlet delivery channel), 2812 (gas containment chamber), 2813 (outlet delivery channel), 2814 (limiting abutment seat), 282 (electromagnetic valve core), 2821 (sealing block), 283 (coil cover), 284 (electromagnetic elastic element), 285 (frustum-shaped boss), 286 (manual outlet channel), 287 (manual drive valve), 2871 (manual valve body), 2872 (pull rod), 28721 (first plug), 28722 (second plug), 2888 (one-way valve), 2881 (one-way valve body), 2882 (one-way valve core), 2883 (one-way elastic element), 3 (fire extinguishing agent bottle), 4 (container valve), 411 (valve body), 4111 (valve sealing seat), 4111 (convex ring), 412 (siphon tube), 41 (lower gas channel). 21. Pressure gauge connector 413, housing 4131, sealing channel 41311, cylindrical section 413111, frustum section 413112, protruding section 413113, connecting section 413114, sealing core 4132, sealing seat 41321, air passage 413211, sealing head 41322, trigger rod 413221, sealing elastic element 4133, input interface 42, output interface 43, valve core 44, core groove 441, guide screw 442, guide hole 4421, gasket 443, main sealing gasket 444, valve cover 45, air chamber 451, reset elastic element 46, interruption release mechanism 47, starter 471, pressure rod 4711, pressure channel 4712, venting channel 4713, air pipe connector 4714. Manual start device 4715, interrupt valve seat 472, pressure relief hole 4721, clearance hole 4722, interrupt valve core 473, core body 4731, upper core rod 4732, lower core rod 4733, interrupt elastic element 474, constant pressure opening valve 48, pressurizing air pipe 481, first constant pressure connector 482, second constant pressure connector 483, constant pressure core 484, constant pressure elastic element 485, nitrogen delivery pipe 5, pressure reducing and stabilizing valve 6, pressure stabilizing valve shell 61, first limiting step 611, second limiting step 612, fixing element 62, fixing ring 621, first vent hole 6211, fixing post 622, plug 6221, arc surface 62211, pressure stabilizing elastic element 63, moving element 64, second vent hole 641, vent passage 642, limiting block 643.Pressure-bearing surface 6431, receiving part 65, left connector 66, right connector 67, one-way valve 68, discharge pipe 7, fire extinguishing assembly 8, first fire extinguishing assembly 8a, middle fire extinguishing assembly 8b, tail fire extinguishing assembly 8c, gas connection pipe 81, first gas connection pipe 811, second gas connection pipe 812, electromagnetic starter 82, pneumatic start valve 83, first pneumatic start valve 83a, second pneumatic start valve 83b, third pneumatic start valve 83c, pressure applying vertical rod 831, pressure applying horizontal rail 832, gas pipe connector 833, manifold 9, nitrogen supply cylinder assembly 10. Detailed Implementation

[0107] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0108] like Figures 1 to 17 As shown, an externally pressurized long-distance delivery fire extinguishing system of the present invention includes a nitrogen cylinder 1, a cylinder head valve 2, a fire extinguishing agent cylinder 3, and a container valve 4; the cylinder head valve 2 is connected to a nitrogen delivery pipe 5 on its side, and the cylinder head valve 2 is installed on the nitrogen cylinder 1 to deliver the nitrogen in the nitrogen cylinder 1 to the nitrogen delivery pipe 5; the container valve 4 is installed on the fire extinguishing agent cylinder 3, and a pressure reducing and stabilizing valve 6 is installed on its side, which is connected to the end of the nitrogen delivery pipe 5; a discharge pipe 7 is installed on the side of the container valve 4, and the container valve 4 controls the fire extinguishing gas in the fire extinguishing agent cylinder 3 to be output from the discharge pipe 7.

[0109] Thus, the present invention relates to an externally pressurized long-distance delivery fire extinguishing system. In use, the cylinder valve 2 drives the gas in the nitrogen cylinder 1 to be delivered to the fire extinguishing agent cylinder 3 through the nitrogen delivery pipe 5. Since the pressure reducing and stabilizing valve 6 is installed on the side of the container valve 4 and is connected to the end of the nitrogen delivery pipe 5, the pressure of the nitrogen is relatively stable after passing through the pressure reducing and stabilizing valve 6. The nitrogen is stably delivered to the fire extinguishing agent cylinder 3, so that the fire extinguishing gas is stably output after the nitrogen and the fire extinguishing agent are mixed, and the fire extinguishing effect is better.

[0110] Optionally, a nitrogen cylinder 1 and a fire extinguishing agent cylinder 3 are connected to form a fire extinguishing group 8. Multiple fire extinguishing groups 8 are configured, and the two cylinder head valves 2 of adjacent fire extinguishing groups 8 are connected via a gas connection pipe 81. Each fire extinguishing group 8 has a discharge pipe 7 connected to a manifold 9. By setting up multiple fire extinguishing groups 8, and with each group's discharge pipe 7 connected to a manifold 9, a large amount of extinguishing gas can be discharged to the fire source to effectively extinguish the fire. In this example, the manifold 9 is equipped with a safety relief component and a low-leakage high-seal valve.

[0111] Further, the bottle head valve 2 includes a bottle head valve body 21, a bottle head valve cap 22, a pilot valve seat 23, a pilot valve core 24, a pilot elastic element 25, a lifting valve core 26, and a compression elastic element 27; the bottle head valve cap 22 is disposed on the bottle head valve body 21, and the bottle head valve cap 22 is provided with an vent hole 221 and an upper connecting protrusion 222; the pilot valve seat 23 is disposed at the bottom of the bottle head valve cap 22, and the pilot valve seat 23 is provided with a vent hole 231; the pilot valve core 24 includes a pilot core body 241, which is movably disposed within the pilot valve seat 23, so that... The vent 231 is located above or below the pilot core 241. One end of the pilot elastic element 25 is connected to the pilot core 241, and the other end of the pilot elastic element 25 is connected to the pilot valve seat 23. The lifting valve core 26 is movable and disposed in the bottle head valve body 21. A gas chamber 223 is formed between the lifting valve core 26 and the bottle head valve cap 22. A gas supply channel 261 communicating with the gas chamber 223 is provided in the lifting valve core 26. One end of the compression elastic element 27 is connected to the bottle head valve cap 22, and the other end of the compression elastic element 27 is connected to the lifting valve core 26.

[0112] During installation, the starter 471 can be connected to the upper connecting boss 222 of the bottle head valve cap 22. In use, the pilot valve core 24 descends under the action of the starter 471. After the pilot valve core 24 descends, the vent hole 231 is located above it. At this time, the gas in the gas chamber 223 is output to the outside through the vent hole 231 and the outlet hole 221, causing the gas pressure in the gas chamber 223 to decrease. This causes the lifting valve core 26 to rise, realizing the gas output from the bottle. When gas output is not required, the pilot valve core 24 rises under the action of the starter 471 and the pilot elastic element 25. The gas in the bottle is slowly replenished into the gas chamber 223 through the gas replenishment channel 261, increasing the gas pressure in the gas chamber 223. The lifting valve core 26 descends under the action of the compression elastic element 27 and the gas chamber 223, thus closing the gas output.

[0113] In this example, the fire extinguishing group 8 includes a first fire extinguishing group 8a, a middle fire extinguishing group 8b, and a final fire extinguishing group 8c. The cylinder valve 2 of the middle fire extinguishing group 8b is connected to the cylinder valve 2 of the first fire extinguishing group 8a via a first gas connection pipe 811, and the cylinder valve 2 of the final fire extinguishing group 8c is connected to the cylinder valve 2 of the middle fire extinguishing group 8b via a second gas connection pipe 812. By setting the first gas connection pipe 811 and the second gas connection pipe 812, it is convenient to use gas to drive the pneumatic start valve 83, thereby realizing the output of fire extinguishing gas. That is, the first gas connection pipe 811 and the second gas connection pipe 812 can be connected to the pressure channel 832 of the pneumatic start valve 83.

[0114] like Figure 1As shown, as an example, the upper connecting boss 222 of the cylinder valve 2 of the first fire extinguishing group 8a is connected to the electromagnetic starter 82; the upper connecting boss 222 of the cylinder valve 2 of the middle fire extinguishing group 8b is connected to the first pneumatic start valve 83a; and the upper connecting boss 222 of the cylinder valve 2 of the tail fire extinguishing group 8c is connected to the second pneumatic start valve 83b.

[0115] In other words, by setting up the electromagnetic starter 82, nitrogen gas in the nitrogen cylinder 1 of the first fire extinguishing group 8a can be delivered to the extinguishing agent cylinder 3 of the first fire extinguishing group 8a, so that the extinguishing gas in the extinguishing agent cylinder 3 of the first fire extinguishing group 8a can be output from the discharge pipe 7. By setting up the first pneumatic start valve 83a, which is connected to the cylinder head valve 2 of the first fire extinguishing group 8a through the first gas connecting pipe 811, the nitrogen gas in the first fire extinguishing group 8a can be used for pneumatic start, making it more convenient to use. By setting up the second pneumatic start valve 83b, which is connected to the first pneumatic start valve 83a through the second gas connecting pipe 812, and the first pneumatic start valve 83a is connected to the cylinder head valve 2 of the first fire extinguishing group 8a through the first gas connecting pipe 811, the nitrogen gas in the first fire extinguishing group 8a can be used for pneumatic start, making it even more convenient to use.

[0116] like Figure 2 As shown, as another example, the cylinder head valve 2 of the first fire extinguishing group 8a is connected to the third pneumatic start valve 83c, which in turn is connected to the nitrogen supply cylinder group 10. By setting up the nitrogen supply cylinder group 10, the first fire extinguishing group 8a, the middle fire extinguishing group 8b, and the tail fire extinguishing group 8c are all pneumatically started by nitrogen from the nitrogen supply cylinder group 10, making the whole operation convenient.

[0117] like Figure 9 , Figure 13 and Figure 14 As shown, the pressure reducing and regulating valve 6 further includes a pressure regulating valve housing 61, a fixing member 62, a pressure regulating elastic member 63, and a moving member 64; the fixing member 62 includes a fixing ring 621 and a fixing post 622. The fixing ring 621 is disposed on the inner side wall of the pressure regulating valve housing 61, and a first vent hole 6211 is provided in the fixing ring 621. One end of the fixing post 622 is fixedly connected to the fixing ring 621, and the other end of the fixing post 622 forms a plug 6221; one end of the pressure regulating elastic member 63 is disposed on the fixing ring 621, and the other end of the pressure regulating elastic member 63 is disposed on one side of the moving member 64. The moving member 64 is movably disposed in the pressure regulating valve housing 61, and a second vent hole 641 is provided in the moving member 64 for the plug 6221 to be inserted. A vent passage 642 is formed between the second vent hole 641 and the outer side of the plug 6221.

[0118] By setting a pressure-reducing and stabilizing valve 6, one end of the valve is connected to the nitrogen delivery pipe 5, and the other end is connected to the input interface 42. When nitrogen is being delivered, the initial pressure is high. At this time, the moving part 64 moves closer to the fixed ring 621 under the action of nitrogen, causing the plug 6221 to insert into the second vent hole 641. Thus, the venting channel 642 formed between the second vent hole 641 and the outside of the plug 6221 is smaller, thereby reducing the nitrogen output when the pressure is high. As nitrogen is continuously output, the nitrogen pressure in the nitrogen-driven cylinder group decreases. At this time, the moving part 64 moves away from the fixed ring 621, causing the plug 6221 to gradually move away from the second vent hole 641. This gradually enlarges the venting channel 642, thereby increasing the nitrogen output when the pressure is low. Therefore, this invention can deliver nitrogen relatively stably.

[0119] Furthermore, a first limiting step 611 is provided inside the pressure regulating valve housing 61, and a limiting block 643 is formed at the end of the moving member 64 near the pressure regulating elastic member 63, abutting against the first limiting step 611. In use, the limiting block 643 at the end of the moving member 64 abuts against the first limiting step 611 under the action of the pressure regulating elastic member 63, thereby increasing the gas passage 642 when the pressure decreases, and achieving a more stable delivery of nitrogen.

[0120] In this example, the limiting block 643 forms a pressure-bearing surface 6431 inside. By setting the pressure-bearing surface 6431, when the nitrogen pressure delivered by the nitrogen delivery pipe 5 is high, the nitrogen will act on the pressure-bearing surface 6431 during the nitrogen delivery process. At this time, the nitrogen will push the moving part 64 to move. After the moving part 64 moves, the gas passage 642 will become smaller, so that the nitrogen can be delivered more stably.

[0121] Furthermore, a second limiting step 612 is provided inside the pressure regulating valve housing 61, and one side of the fixing ring 621 abuts against the second limiting step 612. By providing the second limiting step 612, it is convenient to place the fixing ring 621 inside the pressure regulating valve housing 61, so that one end of the pressure regulating elastic element 63 abuts against the fixing ring 621, and the other end of the pressure regulating elastic element 63 abuts against the limiting block 643.

[0122] In some examples, a receiving element 65 is also included, which is connected to the pressure regulating valve housing 61, with its end abutting against the other side of the retaining ring 621. By providing the receiving element 65, after it is connected to the pressure regulating valve housing 61, its end abuts against the retaining ring 621, effectively preventing displacement of the retaining ring 621 and firmly confining it within the pressure regulating valve housing 61. A sealing ring mounting groove is provided on the outer wall of the retaining ring 621, allowing the sealing ring to be placed within this groove, preventing nitrogen leakage during nitrogen delivery and enhancing overall sealing performance.

[0123] As an example, the inner diameter of the plug 6221 gradually decreases from near the retaining ring 621 to away from the retaining ring 621, so that the end of the plug 6221 forms an arc surface 62211.

[0124] During nitrogen delivery, the nitrogen moves along the arc surface 62211, thereby reducing the impact of nitrogen on the plug 6221 and enabling rapid nitrogen delivery. Simultaneously, the movement of the moving block effectively changes the size of the gas passage 642, resulting in better pressure reduction and stabilization.

[0125] In some examples, a left connector 66 is also included, one end of which connects to the left side of the pressure regulating valve housing 61, and the other end of which forms a left connecting thread for connection with the pipe body. The left connecting thread of the left connector 66 facilitates connection with the pipe body. A right connector 67 is also included, one end of which connects to the right side of the receiving member 65, and the other end of which forms a right connecting thread for connection with the valve body 41. The right connecting thread of the right connector 67 facilitates connection with the valve body 41 of the container valve 4, which is located on the extinguishing agent cylinder 3, thereby facilitating the delivery of nitrogen gas into the extinguishing agent cylinder 3.

[0126] In this example, a one-way valve 68 is installed at the connection point between the right connector 67 and the receiving part 65. By installing the one-way valve 68, backflow of the extinguishing agent can be prevented, ensuring the one-way flow of the extinguishing agent. The one-way valve 68 is a common type of one-way valve in the prior art, and will not be described in detail here. This invention, by installing a pressure-reducing and stabilizing valve 6, can stabilize the nitrogen pressure from 4-15 MPa to 2.5-3 MPa when nitrogen is supplied to the liquid extinguishing agent cylinder 3, maintaining a stable nitrogen supply.

[0127] Optionally, a lower connecting boss 224 is provided at the bottom of the bottle cap 22, and a lower connecting internal thread is provided inside the lower connecting boss 224. An upper connecting external thread that mates with the lower connecting internal thread is provided at the upper end of the pilot valve seat 23. The compression elastic element 27 is sleeved on the lower connecting boss 224. By providing the lower connecting boss 224, and by providing a lower connecting internal thread within the lower connecting boss 224, it is easy to quickly install the pilot valve seat 23 onto the lower connecting boss 224. Simultaneously, the compression elastic element 27 can be sleeved on the lower connecting boss 224, thereby making the compression elastic element 27 more stable during compression.

[0128] In some examples, the pilot valve seat 23 has multiple upward-sloping vent holes 231 on its side. By providing multiple vent holes 231, and by arranging them upwards, the gas in the gas chamber 223 can be quickly discharged to the outside through the outlet hole 221 along the vent holes 231. A sealing ring is provided on the side of the pilot core 241 to prevent gas from escaping from the gas chamber 223 when the vent holes 231 are located below the pilot core 241.

[0129] In this example, an upper valve core rod 242 is provided at the upper end of the pilot valve core 24. The upper valve core rod 242 is connected to the pressure rod 831 of the pneumatic start valve 83 and is driven to descend by the pressure rod 831. A lower valve core rod 243 is provided at the lower end of the pilot valve core 24; the pilot flexural element 25 is sleeved on the lower valve core rod 243.

[0130] By providing an upper valve core rod 242, it is easy to connect with the pressure applying vertical rod 831, so that when the pressure applying vertical rod 831 rises or falls, the pilot core 241 rises or falls synchronously. The bottle head valve cap 22 has a clearance through-hole for the upper valve core rod 242 to pass through. The inner diameter of the clearance through-hole is larger than the inner diameter of the upper valve core rod 242, and a gap is formed between the inner wall of the clearance through-hole and the outer wall of the upper valve core rod 242, allowing gas in the gas chamber 223 to exit through the gap between the upper valve core rod 242 and the clearance through-hole. By providing a lower valve core rod 243, it is easy for the pilot scissor 25 to be fitted onto the lower valve core rod 243, making the pilot scissor 25 more stable during compression and preventing twisting of the pilot scissor 25. The bottom of the pilot valve seat 23 has a clearance through-hole 232 for the lower valve core rod 243 to pass through, thus facilitating the lower valve core rod 243 to pass through the pilot valve seat 23.

[0131] Preferably, a limiting groove 262 is formed at the upper end of the lifting valve core 26 for the lower end of the compression elastic element 27 to be inserted. The lower end of the compression elastic element 27 abuts against the limiting groove 262, further improving the stability of the compression elastic element 27 during compression and preventing the compression elastic element 27 from twisting during compression.

[0132] In this example, a valve connecting seat 211 is formed inside the bottle head valve body 21. The lifting valve core 26 includes an upper sealing section 263 and a lower abutting section 264. The side of the upper sealing section 263 can move along the inner wall of the bottle head valve body 21. The inner diameter of the lower abutting section 264 is smaller than the inner diameter of the upper sealing section 263. A lifting space 265 is formed between the lower abutting section 264 and the upper sealing section 263. A gas inlet 2651 is provided on the side of the bottle head valve body 21. The gas inlet 2651 communicates with the lifting space 265 and is connected to the nitrogen delivery pipe 5.

[0133] After the cylinder valve body 21 is connected to the nitrogen cylinder 1, when the gas in the nitrogen cylinder 1 is insufficient and needs to be filled, the lower abutment section 264 of the lifting valve core 26 abuts against the valve connecting seat 211 under the action of the compression elastic element 27. After the gas inlet 2651 is connected to the filling pipe, the filling pipe is connected to the gas source. The gas in the filling pipe is delivered from the gas inlet 2651 to the lifting space 265, which increases the gas pressure in the lifting space 265. At this time, the lifting valve core 26 rises under the action of the gas pressure. After the lifting valve core 26 rises, the lower abutment section 264 separates from the valve connecting seat 211. In this way, the gas enters the cylinder body through the gap formed between the lower abutment section 264 and the valve connecting seat 211, thereby realizing the filling of gas. Since the inner diameter of the gas inlet 2651 is much larger than the inner diameter of the pressure gauge interface, the filling speed is fast and the filling efficiency is high after the filling pipe is connected to the gas inlet 2651.

[0134] By setting an upper sealing section 263, and a sealing ring on the side of the upper sealing section 263, which abuts against the inner wall of the bottle head valve body 21, the gas in the lifting space 265 will not leak upward when the air pressure in the lifting space 265 increases, ensuring that the lifting valve core 26 can be lifted by the air pressure and achieve rapid filling.

[0135] Optionally, an annular protrusion 2111 is provided at one end of the valve connecting seat 211 near the lifting valve core 26; a sealing buffer pad 2641 is provided on the lower abutment section 264 for abutting against the annular protrusion 2111. By providing the sealing buffer pad 2641 and the annular protrusion 2111, after gas output stops, the sealing buffer pad 2641 abuts against the annular protrusion 2111 under the action of the compression elastic element 27, and the end of the annular protrusion 2111 inserts into the sealing buffer pad 2641, causing the sealing buffer pad 2641 to deform, thereby improving the sealing effect. Simultaneously, the sealing buffer pad 2641 acts as a buffer, preventing the lifting valve core 26 from directly impacting the valve connecting seat 211.

[0136] Furthermore, a guide member 266 is provided on the lower abutment section 264. The guide member 266 includes a guide rod 2661 and a guide protrusion 2662. The guide rod 2661 is rotatably mounted on the lower abutment section 264, and the guide protrusion 2662 is fixedly connected to the end of the guide member 266. The side of the guide protrusion 2662 abuts against the inner wall of the valve connecting seat 211. A guide hole 2663 is provided inside the guide member 266. A sealing ring can be provided on the side of the guide protrusion 2662. By providing the guide hole 2663, the gas in the bottle can slowly enter the gas cavity 223 formed between the bottle head valve cap 22 and the lifting valve core 26 through the guide hole 2663.

[0137] Furthermore, a connecting groove is provided inside the lifting valve core 26 for threaded connection with the guide rod 2661. An anti-clogging component 267 is provided inside the connecting groove, and an air supply channel 2671 is formed inside the anti-clogging component 267. The anti-clogging component 267 is made of hydrophobic plastic, and a polytetrafluoroethylene film is provided on the surface of the anti-clogging component 267.

[0138] The connecting groove can be provided with an internal thread, and the guide rod 2661 can be provided with an external thread. In this way, during connection, the guide protrusion 2662 can be rotated to drive the guide rod 2661 to rotate synchronously and fix the guide component 266 on the lifting valve core 26. At the same time, the sealing buffer pad 2641 abuts against the guide protrusion 2662, thereby restricting the sealing buffer pad 2641 and preventing the sealing buffer pad 2641 from being displaced.

[0139] By setting the valve core gas supply channel 2671, gas inside the bottle can easily enter the gas cavity 223 formed between the bottle head valve cap 22 and the lifting valve core 26 through the valve core gas supply channel 2671. The hydrophobic plastic is not easily dissolved in water, thus providing a water-proof effect. This prevents water vapor inside the bottle from adhering to the anti-clogging surface, preventing condensation and blockage of the valve core gas supply channel 2671. The anti-clogging component 267 can be made of copper. For example, physical surface vapor deposition can be performed on the copper surface, and then a polytetrafluoroethylene (PTFE) film can be applied to its surface. The PTFE film is made by molding, sintering, and cooling a suspended PTFE resin into a blank, followed by machining and calendering. The PTFE film has properties such as high temperature resistance, non-adhesion, high strength, and corrosion resistance, further preventing condensation and blockage of the valve core gas supply channel 2671.

[0140] In this example, the valve core gas supply channel 2671 includes an upper guide channel, a middle connecting channel, and a lower guide channel. The inner diameter of the upper guide channel gradually increases from the direction close to the middle connecting channel to the direction far from the middle connecting channel, and an upper guide surface is formed inside the upper guide channel. The upper end of the middle connecting channel is connected to the upper guide channel, and the lower end of the middle connecting channel is connected to the lower guide channel. The inner diameter of the lower guide channel gradually increases from the direction close to the middle connecting channel to the direction far from the middle connecting channel, and a lower guide surface is formed inside the lower guide channel, so that the gas in the bottle slowly enters the gas cavity 223 formed between the bottle head valve cap 22 and the lifting valve core 26.

[0141] Furthermore, the lifting valve core 26 also includes a middle connecting section 268. The upper end of the middle connecting section 268 is fixedly connected to the upper sealing section 263, and the lower end of the middle connecting section 268 is fixedly connected to the lower abutment section 264. The upper end of the middle connecting section 268 is provided with an upper frustum, and the lower end of the middle connecting section 268 is provided with a lower frustum. A pressure gauge interface is provided on the side of the cylinder valve body 21. The inner diameter of the middle part of the middle connecting section 268 is smaller than the inner diameter of the lower abutment section 264, resulting in a larger lifting space 265. The gas in the lifting space 265 applies pressure to the upper frustum, facilitating the lifting of the valve core 26 and enabling rapid gas filling. This pressure gauge interface can be connected to a pressure gauge, thus facilitating connection to the gas pressure inside the nitrogen cylinder 1.

[0142] In this example, the pneumatic start valve 83 is equipped with a pressure-applying vertical rod 831 connected to the upper valve core rod 242, and a pressure-applying horizontal channel 832 is provided on the side of the pneumatic start valve 83. An air pipe connector 833 is formed at the end of the pressure-applying horizontal channel 832. During use, gas from the air pipe connector 833 is supplied to the pressure-applying horizontal channel 832, increasing the air pressure within the channel. This causes the pressure-applying vertical rod 831 to descend, which in turn causes the upper valve core rod 242 to descend, thus positioning the vent 231 above the pilot core 241, thereby opening the valve.

[0143] Optionally, an electromagnetic interface is provided on the side of the bottle head valve body 21. The electromagnetic interface is located below the valve connector 211. An electromagnetic drive device 28 is provided on the electromagnetic interface. The electromagnetic drive device 28 is connected to the gas pipe connector 833 through a pressure pipe. Furthermore, the electromagnetic drive device 28 includes an electromagnetic valve body 281, an electromagnetic valve core 282, a coil cover 283, and an electromagnetic elastic element 284. The electromagnetic valve body 281 is connected to an electromagnetic interface. An inlet delivery channel 2811, a gas receiving chamber 2812, and an outlet delivery channel 2813 are provided inside the electromagnetic valve body 281. One end of the inlet delivery channel 2811 is connected to the bottle head valve body 21, and the gas receiving chamber 2812 is connected to the other end of the inlet delivery channel 2811. The electromagnetic valve core 282 can be moved and disposed inside the electromagnetic valve body 281 so that the gas receiving chamber 2812 is connected to or not connected to the outlet delivery channel 2813. The coil cover 283 is disposed on the electromagnetic valve body 281, and a coil is disposed inside the coil cover 283. One end of the electromagnetic elastic element 284 is disposed inside the coil cover 283, and the other end of the electromagnetic elastic element 284 is disposed on the electromagnetic valve core 282 so that the end of the electromagnetic valve core 282 abuts against the outlet delivery channel 2813.

[0144] By setting up an electromagnetic drive device 28, the gas inside the bottle can enter the pressure tube through the electromagnetic drive device 28, and finally enter the pressure channel 832 through the pressure tube, causing the pressure rod 831 to descend and thus opening. In use, the coil cover 283 and the coil drive the solenoid valve core 282 to rise, thereby connecting the gas inlet delivery channel 2811 with the gas outlet delivery channel 2813 through the gas receiving cavity 2812, thus facilitating the gas inside the bottle to enter the pressure channel 832 through the pressure tube.

[0145] In this example, a sealing block 2821 is provided at the end of the solenoid valve core 282; a frustum-shaped boss 285 is formed in the gas receiving cavity 2812, and a gas outlet communicating with the gas delivery channel 2813 is formed in the frustum-shaped boss 285. The diameter of the end of the frustum-shaped boss 285 near the sealing block 2821 is smaller than the diameter of the sealing block 2821; the sealing block 2821 can abut against the end of the frustum-shaped boss 285 to block the gas outlet. By providing the frustum-shaped boss 285 and the sealing block 2821, when the sealing block 2821 abuts against the gas outlet, the end of the frustum-shaped boss 285 is inserted into the sealing block 2821, causing the sealing block 2821 to deform, thereby improving the sealing effect.

[0146] Furthermore, a hexagonal nut is provided at the end of the coil cover 283, which is connected to the screw. The end of the screw is located inside the coil cover 283, and the end of the electromagnetic elastic element 284 abuts against the end of the screw. In use, the screw can be rotated synchronously by rotating the hexagonal nut, thereby adjusting the compression degree of the electromagnetic elastic element 284 and ensuring that the sealing block 2821 at the end of the solenoid valve core 282 can firmly abut against the gas outlet to block the gas outlet.

[0147] In some examples, a manual air outlet channel 286 is provided within the solenoid valve body 281. One end of the manual air outlet channel 286 is connected to the gas receiving cavity 2812. A manual drive valve 287 is provided on the side of the solenoid valve body 281 to connect or disconnect the manual air outlet channel 286 from the air delivery channel 2813. The manual drive valve 287 includes a manual valve body 2871 and a pull rod 2872. The manual valve body 2871 is located on the side of the solenoid valve body 281, and the pull rod 2872 is movably disposed within the manual valve body 2871. Pulling the pull rod 2872 connects or disconnects the manual air outlet channel 286 from the air delivery channel 2813.

[0148] By setting up a manual air outlet channel 286 and a manual drive valve 287, when the solenoid valve core 282 fails and cannot move, the manual drive valve 287 can be operated to connect the manual air outlet channel 286 with the air outlet delivery channel 2813, thereby allowing gas to flow from the manual air outlet channel 286 to the air outlet delivery channel 2813, and finally flow through the pressure pipe into the pressure cross channel 832. In specific operation, the lever 2872 can be pulled in the forward direction to connect the air outlet channel with the air outlet delivery channel 2813, while pushing the lever 2872 in the reverse direction will disconnect the air outlet channel from the air outlet delivery channel 2813.

[0149] In some examples, the lever 2872 is provided with a first plug 28721 and a second plug 28722. The first plug 28721 is located on one side of the manual vent channel 286, and the second plug 28722 is located on the other side of the manual vent channel 286. Both the first plug 28721 and the second plug 28722 are provided with sealing rings to effectively prevent gas leakage from the gas receiving cavity 2812.

[0150] Furthermore, a limiting abutment 2814 is provided on the side of the solenoid valve body 281, and the end of the manual valve body 2871 abuts against the limiting abutment 2814, and the end of the second plug 28722 abuts against the limiting abutment 2814. The manual drive valve 287 also includes a pull pin, which passes through the manual valve body 2871 and the pull rod 2872 to prevent the pull rod 2872 from being pulled. A first through hole can be provided on the manual valve body 2871, and a second through hole is provided on the pull rod 2872. When the end of the manual valve body 2871 abuts against the limiting abutment 2814 and the end of the pull rod 2872 abuts against the limiting abutment 2814, the second through hole aligns perfectly with the first through hole, thus facilitating the insertion of the pull rod 2872 into both the second and first through holes, thereby preventing the pull rod 2872 from being pulled.

[0151] In this example, a one-way valve 288 is also provided on the side of the solenoid valve body 281. The one-way valve 288 includes a one-way valve body 2881, a one-way valve core 2882, and a one-way elastic element 2883. The one-way valve core 2882 is movably disposed within the one-way valve body 2881. One end of the one-way elastic element 2883 is disposed within the one-way valve body 2881, and the other end of the one-way elastic element 2883 abuts against the one-way valve core 2882 to close the gas delivery channel 2813.

[0152] By setting a one-way valve 288, the gas in the pressure application pipe can be prevented from being transported in the reverse direction into the gas receiving chamber 2812. The one-way valve body 2881 is provided with a gas pipe interface on the outside for connecting to the pressure application pipe, thereby facilitating the connection between the gas pipe interface and the pressure application pipe.

[0153] like Figures 9 to 14As shown, optionally, the container valve 4 includes a valve body 41, an input port 42, an output port 43, a valve core 44, a valve cover 45, a reset elastic element 46, an interruption release mechanism 47, and a constant pressure opening valve 48; the input port 42 is located on the side of the valve body 41 and is connected to the pressure reducing and stabilizing valve 6; the output port 43 is located on the side of the valve body 41, and the valve core 44 is movably disposed within the valve body 41 so that the input port 42 and the output port 43 can be connected or disconnected; the valve cover 45 is provided with... On the valve body 41, an air chamber 451 is formed between the valve cover 45 and the valve core 44. One end of the reset elastic member 46 abuts against the valve cover 45, and the other end of the reset elastic member 46 abuts against the valve core 44. An interruption release mechanism 47 is provided on the valve cover 45 to release the gas in the air chamber 451. A constant pressure opening valve 48 is provided on the side of the valve body 41 and located below the valve core 44. The constant pressure opening valve 48 is connected to the interruption release mechanism 47 through a pressurized air pipe 481 to release the gas in the air chamber 451.

[0154] In use, nitrogen gas is supplied to the valve body 41 through the input interface 42. The nitrogen gas mixes with the extinguishing agent to generate extinguishing gas. This extinguishing gas enters the interruption release mechanism 47 through the constant pressure opening valve 48 and the pressurized gas pipe 481. The interruption release mechanism 47 releases the gas in the gas chamber 451, causing the valve core 44 to move upward. After the valve core 44 moves upward, the extinguishing gas in the extinguishing agent cylinder 3 is output from the output interface 43, thereby extinguishing the fire source. As the extinguishing gas in the extinguishing agent cylinder 3 is continuously released, when the gas pressure of the extinguishing gas drops, the constant pressure opening valve 48 closes, preventing the extinguishing gas from entering the interruption release mechanism 47. At this time, the gas in the gas chamber 451 is gradually replenished, causing the valve core 44 to move downward. After the valve core 44 moves downward, the extinguishing gas will not be output from the output interface 43, thus achieving interruption closure. Therefore, by setting a constant pressure regulating valve and an interruption release mechanism 47 on the valve body 41, the present invention enables the extinguishing agent to be released stably and intermittently, thereby improving the extinguishing effect.

[0155] In this example, the upper part of the valve core 44 forms a core groove 441 for the insertion of the end of the reset elastic element 46, and the lower part of the valve core 44 is provided with a guide screw 442. A guide hole 4421 is formed in the guide screw 442, and the guide hole 4421 is connected to the gas chamber 451 through the core groove 441. After the constant pressure opening valve 48 is closed, the gas pressure in the gas chamber 451 is less than the gas pressure of the extinguishing gas in the extinguishing agent bottle 3. The extinguishing gas in the extinguishing agent bottle 3 slowly enters the gas chamber 451 through the guide hole 4421 and the core groove 441, causing the gas pressure in the gas chamber 451 to slowly increase, thereby pushing the valve core 44 to move downward, so that the input interface 42 is not connected to the output interface 43, thereby interrupting the release of the extinguishing gas.

[0156] In some examples, a valve seal seat 411 is formed inside the valve body 41; the lower part of the valve core 44 abuts against the valve seal seat 411, and the side of the guide screw 442 abuts against the inner side of the valve seal seat 411. By setting the valve seal seat 411, the valve core 44 abuts against the valve seal seat 411 under the action of the reset elastic member 46, thereby closing the output port 43.

[0157] In this example, a gasket 443 is provided between the lower part of the valve core 44 and the guide screw 442, and a sealing ring is provided between the gasket 443 and the valve sealing seat 411. By providing the gasket 443 and the sealing ring, the fire extinguishing gas in the valve body 41 can be effectively prevented from being output from the output port 43 after closing.

[0158] Furthermore, a main sealing gasket 444 is provided at the lower part of the valve core 44, and the inner side of the main sealing gasket 444 abuts against the gasket 443; a first mating block is provided on the gasket 443, and a second mating block that mates with the first mating block is provided on the main sealing gasket 444. By providing the main sealing gasket 444, the main sealing gasket 444 is firmly fixed to the gasket 443 through the first mating block and the second mating block, thereby further preventing the fire extinguishing gas in the valve body 41 from being output from the output port 43 after closing.

[0159] As an example, a convex ring 4111 is provided at the upper end of the valve sealing seat 411. The outer side of the main sealing gasket 444 abuts against the convex ring 4111. After the valve core 44 abuts against the valve sealing seat 411 under the action of the reset elastic member 46, the outer side of the main sealing gasket 444 abuts against the convex ring 4111. The main sealing gasket 444 is squeezed, which further prevents the fire extinguishing gas in the valve body 41 from being output from the output port 43 after closing.

[0160] Furthermore, it also includes a siphon tube 412, which is disposed inside the valve body 41. A lower gas passage 4121 is formed between the outer wall of the siphon tube 412 and the inner wall of the valve body 41. The siphon tube 412 extends into the extinguishing agent bottle 3. The siphon tube 412 abuts against the bottom of the valve sealing seat 411, and a sealing ring is provided between the siphon tube 412 and the bottom of the valve sealing seat 411.

[0161] By setting up a siphon tube 412, nitrogen gas enters the extinguishing agent cylinder 3 along the lower gas channel 4121, where it mixes thoroughly with the extinguishing agent, improving the extinguishing effect. By sealing the end of the siphon tube 412, the input interface 42 and the output interface 43 are separated by the siphon tube 412, facilitating the output of the extinguishing gas formed after the extinguishing agent and nitrogen are fully mixed.

[0162] In this example, the interruption release mechanism 47 includes an actuator 471, an interruption valve seat 472, an interruption valve core 473, and an interruption elastic element 474. The actuator 471 is mounted on the valve cover 45, and a pressure rod 4711 is movably mounted inside the actuator 471. A pressure channel 4712 is provided at the upper part of the actuator 471. One end of the pressure channel 4712 is used to connect to the pressure pipe 481, and the other end of the pressure channel 4712 is located at the end of the pressure rod 4711. A venting channel 471 is provided at the lower part of the actuator 471. 713; The interrupt valve seat 472 is disposed on the valve cover 45, and the side of the interrupt valve seat 472 is provided with a pressure relief hole 4721; the interrupt valve core 473 is movably disposed in the interrupt valve seat 472 so that the pressure relief hole 4721 is located on the upper or lower part of the interrupt valve core 473, the interrupt valve core 473 is connected to the pressure rod 4711 and is driven to move by the pressure rod 4711, one end of the interrupt elastic member 474 abuts against the interrupt valve core 473, and the other end of the interrupt elastic member 474 abuts against the interrupt valve seat 472.

[0163] When in use, the extinguishing gas is introduced into the pressurization channel 4712 of the starter 471. The extinguishing gas pressurizes the pressurization rod 4711, causing the pressurization rod 4711 to move down, which in turn drives the interruption valve core 473 to move down synchronously. After the interruption valve core 473 moves down and is located below the pressure relief hole 4721, the gas in the gas chamber 451 is output to the outside through the pressure relief hole 4721 and the gas relief channel 4713, thereby reducing the pressure of the gas in the gas chamber 451. The valve core 44 in the valve body 41 rises, causing the extinguishing gas in the extinguishing agent bottle 3 to be released through the output port 43.

[0164] When the extinguishing gas pressure is insufficient, the pressure rod 4711 rises under the action of the interrupting elastic element 474 and is positioned above the pressure relief hole 4721. At this time, the gas in the gas chamber 451 will not be output from the pressure relief hole 4721. After the gas in the gas chamber 451 is gradually replenished, the valve core 44 in the valve body 41 descends, thereby stopping the release of the extinguishing gas. Therefore, this invention releases the extinguishing gas when the gas pressure is high and can interrupt the release when the gas pressure is insufficient, thus making the extinguishing gas release process more stable, achieving high-intensity fire extinguishing at the fire source location, and providing a good fire extinguishing effect.

[0165] Furthermore, the starter 471 is provided with a pipe connector 4714 on its side, which connects to the pressurizing pipe 481. By providing the pipe connector 4714, during installation, the pipe connector 4714 can be connected to one end of the pressurizing pipe 481, while the other end of the pressurizing pipe 481 can be connected to the valve body 41. This allows a small portion of the gas inside the valve body 41 to be transported through the pressurizing pipe 481 to the pressurizing channel 4712, so that the pressurizing rod 4711 can be pressurized to achieve pneumatic opening.

[0166] In this example, a manual starting device 4715 is provided at the end of the starter 471. The manual starting device 4715 includes a safety device and a button. By providing the manual starting device 4715, when there is no gas or the gas pressure is insufficient and emergency fire extinguishing needs to be started, the safety device can be removed and the button can be pressed down to lower the pressure lever 4711711 to achieve manual activation.

[0167] In some examples, the interrupt valve core 473 includes a core body 4731 and an upper core rod 4732. The core body 4731 is disposed on the inner wall of the interrupt valve seat 472, and the upper core rod 4732 is fixedly connected to the upper end of the core body 4731. The upper core rod 4732 is connected to the lower end of the pressure rod 4711. A sealing ring is provided on the side of the core body 4731, and the valve cover 45 has a through hole for the upper core rod 4732 to move. The diameter of the upper core rod 4732 is smaller than the through hole of the valve cover 45, so that gas in the gas chamber 451 is output through the through hole and the pressure relief hole 4721.

[0168] When the interrupt valve core 473 moves, the core body 4731 moves up and down along the inner wall of the interrupt valve seat 472. When the core body 4731 moves above the pressure relief hole 4721, the gas in the gas chamber 451 will not be output from the pressure relief hole 4721. However, when the core body 4731 moves below the pressure relief hole 4721, the gas in the gas chamber 451 is output from the pressure relief hole 4721, thereby reducing the pressure in the gas chamber 451. This causes the valve core 44 inside the valve body 41 to rise, resulting in the release of extinguishing gas from the extinguishing agent bottle 3. By providing a sealing ring on the side of the core body 4731, when the core body 4731 moves above the pressure relief hole 4721, the sealing ring can effectively prevent gas leakage from the gas chamber 451, providing a good sealing effect.

[0169] As an example, the interrupt valve core 473 also includes a lower core rod 4733, which is fixedly connected to the lower end of the core body 4731; the bottom of the interrupt valve seat 472 is provided with a clearance hole 4722 for the lower core rod 4733 to be inserted. The interrupt valve seat 472 is detachably mounted on the valve cover 45, and a sealing ring is provided at the connection between the interrupt valve seat 472 and the valve cover 45.

[0170] The interrupting elastic element 474 is sleeved on the lower core rod 4733, thereby limiting the interrupting elastic element 474 and preventing the interrupting elastic element 474 from bending during compression. When the core 4731 moves below the pressure relief hole 4721, the lower core rod 4733 is inserted into the relief hole 4722. The interrupting valve seat 472 can be connected to the valve cover 45 by threads, so that the interrupting valve seat 472 can be detachably mounted on the valve cover 45. By setting a sealing ring, gas is prevented from leaking out from the connection position between the interrupting valve seat 472 and the valve cover 45.

[0171] In this example, a constant pressure opening valve 48 is provided on the side of the valve body 41, and a pressurizing air pipe 481 is connected to the constant pressure opening valve 48. Specifically, the constant pressure opening valve 48 includes a first constant pressure connector 482, a second constant pressure connector 483, a constant pressure core 484, and a constant pressure elastic element 485. The first constant pressure connector 482 is provided on the side of the valve body 41, and a first constant pressure air passage is formed within the first constant pressure connector 482. The second constant pressure connector 483 is provided on the first constant pressure connector 482, and a second constant pressure air passage is formed within the second constant pressure connector 483 that communicates with the first constant pressure air passage. The constant pressure core 484 is movably provided within the first constant pressure connector 482 and the second constant pressure connector 483. One end of the constant pressure core 484 is connected to the constant pressure elastic element 485, and the other end of the constant pressure elastic element 485 abuts against the second constant pressure connector 483. The constant pressure elastic element 485 drives the constant pressure core 484 to abut against the first constant pressure air passage. The reset elastic element 46 can be sleeved on the outside of the interrupt valve seat 472.

[0172] By setting a constant-pressure opening valve 48, the extinguishing gas passage is ensured to open when the constant pressure is reached, keeping the extinguishing gas in a stable state throughout the entire discharge process. When the gas pressure inside the valve body 41 is high, the gas pressurizes the constant-pressure core 484, causing it to move and open the first constant-pressure gas passage. At this time, the gas inside the valve body 41 enters the pressurizing gas pipe 481 through the first and second constant-pressure gas passages, finally pressurizing the pressurizing rod 4711. As the extinguishing agent is continuously discharged, the gas pressure inside the valve body 41 gradually decreases. When the gas pressure inside the valve body 41 is insufficient to push the constant-pressure core 484, the constant-pressure core 484 closes the first constant-pressure gas passage under the action of the constant-pressure elastic element 485, thereby stopping the gas from entering the pressurizing gas pipe 481 and interrupting the discharge of the extinguishing agent.

[0173] like Figures 15 to 17As shown, a pressure gauge connector 413 is further provided on the side of the valve body 41. The pressure gauge connector 413 includes a housing 4131, a sealing core 4132, and a sealing elastic element 4133. A sealing channel 41311 is formed inside the housing 4131. The sealing channel 41311 includes a cylindrical section 413111, a frustum section 413112, a protruding section 413113, and a connecting section 413114. One end of the frustum section 413112 is connected to the cylindrical section 413111. The inner diameter of the frustum section 413112 gradually decreases from the direction close to the cylindrical section 413111 to the direction away from the cylindrical section 413111. One end of the protruding section 413113 is connected to the other end of the frustum section 413112. The connecting section 413114 is connected to the other end of the protruding section 413113. The sealing core 4132 includes a sealing seat 41321 and a sealing head 41322. The sealing seat 41321 is movably disposed within the cylindrical section 413111, and an air passage 413211 is formed within the sealing seat 41321. The sealing head 41322 is fixedly connected to the sealing seat 41321. A sealing ring is provided on the side of the sealing head 41322 for abutting against the side of the frustum section 413112. A trigger rod 413221 is formed at the end of the sealing head 41322. The trigger rod 413221 protrudes from the frustum section 413112 and is located within the protruding section 413113. One end of the sealing elastic member 4133 is connected to the end of the sealing seat 41321, and the other end of the sealing elastic member 4133 is used to connect to the valve body 41 so that the sealing elastic member 4133 is in a compressed state.

[0174] After connecting the outer casing 4131 to the valve body 41, one end of the sealing elastic element 4133 is connected to the valve body 41, and the other end of the sealing elastic element 4133 is connected to the sealing seat 41321. The sealing elastic element 4133 is in a compressed state, so that the fifth sealing ring is tightly pressed against the inner wall of the frustum section 413112. After the pressure gauge is installed in the connecting section 413114, the end of the pressure gauge presses the trigger rod 413221, so that the trigger rod 413221 and the sealing core 4132 move towards the sealing elastic element 4133, so that the sealing ring is not pressed against the frustum section 413112. In this way, gas can enter the pressure gauge through the gas passage 413211, thereby realizing the pressure measurement of the pressure gauge.

[0175] After the pressure gauge is removed, the sealing core 4132, under the action of the sealing elastic element 4133 and the gas, causes the fifth sealing ring of the sealing core 4132 to abut against the frustum section 413112, effectively preventing gas leakage and providing a good sealing effect. Because the inner diameter of the frustum section 413112 gradually decreases from near the cylindrical section 413111 to far away from the cylindrical section 413111, the fifth sealing ring can tightly abut against the frustum section 413112 under the action of the sealing elastic element 4133 and the gas, resulting in a good sealing effect.

[0176] Optionally, the air passage 413211 includes a horizontal air passage 413211 and a plurality of vertical air passages 413211, the ends of which are connected to the horizontal air passage 413211. The connection point between the horizontal and vertical air passages 413211 forms a pressure surface, the longitudinal section of which is V-shaped.

[0177] After the pressure gauge is installed on the connecting section 413114, the sealing ring does not abut against the frustum section 413112. At this time, the gas passes through the horizontal air passage 413211 and then through multiple vertical air passages 413211. The gap between the sealing ring and the frustum section 413112 allows the gas to enter the pressure gauge, thus causing the pressure gauge to display pressure. After the pressure gauge is removed, the sealing ring of the sealing core 4132 abuts against the frustum section 413112 under the action of the sealing elastic element 4133. At the same time, the gas pressure inside the valve body 41 is high, and the gas squeezes the pressure surface, further pressing the sealing ring against the frustum section 413112, resulting in a better sealing effect.

[0178] In this example, a connection port is provided on the side of the valve body 41, and a first internal connection thread is provided on the inner side of the connection port; an external connection thread that connects with the first internal connection thread is provided on the outer side of the outer shell 4131, and an outer abutting surface that abuts against the outer side of the valve body 41 is provided on the outer side of the outer shell 4131.

[0179] When connecting the outer casing 4131 to the valve body 41, rotating the outer casing 4131 causes the external connecting thread to engage with the first internal connecting thread, thereby firmly fixing the outer casing 4131 to the valve body 41. When fixing the outer casing 4131 to the valve body 41, rotating the outer casing 4131 causes its outer abutting surface to abut against the outside of the valve body 41, thus completing the installation of the outer casing 4131.

[0180] The above embodiments and figures are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. An externally pressurized long-distance delivery fire extinguishing system, characterized in that: It includes a nitrogen cylinder, a cylinder head valve, a fire extinguishing agent cylinder, and a container valve; the cylinder head valve is connected to a nitrogen delivery pipe on its side, and is installed on the nitrogen cylinder to deliver nitrogen from the nitrogen cylinder to the nitrogen delivery pipe; the container valve is installed on the fire extinguishing agent cylinder, and a pressure reducing and stabilizing valve is installed on its side, which is connected to the end of the nitrogen delivery pipe; a discharge pipe is installed on the side of the container valve, and the container valve controls the fire extinguishing gas in the fire extinguishing agent cylinder to be output from the discharge pipe; The bottle head valve includes a bottle head valve body, a bottle head valve cap, a pilot valve seat, a pilot valve core, a pilot elastic component, a lifting valve core, and a compression elastic component. The lifting valve core is movable and disposed within the bottle head valve body, forming a gas chamber between the lifting valve core and the bottle head valve cap. A gas supply passage communicating with the gas chamber is provided within the lifting valve core. The lifting valve core includes an upper sealing section and a lower abutment section. The side of the upper sealing section can move along the inner wall of the bottle head valve body. The inner diameter of the lower abutment section is smaller than the inner diameter of the upper sealing section, forming a lifting space between the lower abutment section and the upper sealing section. A gas inlet is provided on the side of the bottle head valve body. The gas inlet is connected to the lifting space and to the nitrogen delivery pipe. A guide component is installed on the lower abutment section. The guide component includes a guide rod and a guide protrusion. The guide rod is rotatably installed on the lower abutment section. The guide protrusion is fixedly connected to the end of the guide component. The side of the guide protrusion abuts against the inner wall of the valve connecting seat. A guide hole is provided inside the guide component. A connecting groove is provided inside the lifting valve core and is threadedly connected to the guide rod. An anti-clogging component is provided inside the connecting groove. A valve core gas supply channel is formed inside the anti-clogging component. The anti-clogging component is made of hydrophobic plastic and a polytetrafluoroethylene film is provided on the surface of the anti-clogging component. The valve core gas supply channel includes an upper guide channel, a middle connecting channel, and a lower guide channel. The inner diameter of the upper guide channel gradually increases from the direction close to the middle connecting channel to the direction far from the middle connecting channel, and an upper guide surface is formed inside the upper guide channel. The upper end of the middle connecting channel is connected to the upper guide channel, and the lower end of the middle connecting channel is connected to the lower guide channel. The inner diameter of the lower guide channel gradually increases from the direction close to the middle connecting channel to the direction far from the middle connecting channel, and a lower guide surface is formed inside the lower guide channel, so that the gas in the bottle slowly enters the gas cavity formed between the bottle head valve cap and the lifting valve core. The container valve includes a valve cover, a valve core, an interruption release mechanism, and a constant pressure opening valve. A gas chamber is formed between the valve cover and the valve core. The interruption release mechanism is mounted on the valve cover to release gas from the gas chamber. The constant pressure opening valve is connected to the interruption release mechanism via a pressurized air pipe to release gas from the gas chamber. The interruption release mechanism includes an actuator, an interruption valve seat, an interruption valve core, and an interruption elastic element. The actuator is mounted on the valve cover, and a pressure rod is movably mounted inside the actuator. A pressure channel is located at the upper part of the actuator, with one end connected to the pressurized air pipe and the other end located at the end of the pressure rod. A venting channel is located at the lower part of the actuator. The interruption valve seat is mounted on the valve cover, and a pressure relief hole is located on the side of the interruption valve seat. The interruption valve core is movably mounted inside the interruption valve seat so that the pressure relief hole is located on the interruption valve core. The valve core is located at the top or bottom. It is connected to the pressure rod and moved by the pressure rod. One end of the interrupting elastic element abuts against the interrupting valve core, and the other end of the interrupting elastic element abuts against the interrupting valve seat. The starter side is provided with a pipe connector for connecting to the pressure pipe, and the starter end is provided with a manual start device. The interrupting valve core includes a core body, an upper core rod, and a lower core rod. The core body side is located on the inner wall of the interrupting valve seat. The upper core rod is fixedly connected to the upper end of the core body and is connected to the lower end of the pressure rod. A sealing ring is provided on the core body side. The valve cover is provided with a through hole for the upper core rod to move. The diameter of the upper core rod is smaller than the through hole of the valve cover. The interrupting valve core also includes a lower core rod, which is fixedly connected to the lower end of the core body. The bottom of the interrupting valve seat is provided with a clearance hole for the lower core rod to be inserted. The interrupting elastic element is sleeved on the lower core rod.

2. The external pressure-storage long-distance delivery fire extinguishing system as described in claim 1, characterized in that: A nitrogen cylinder and an extinguishing agent cylinder are connected to form a fire extinguishing group. Multiple fire extinguishing groups are set up, and the two cylinder head valves of two adjacent fire extinguishing groups are connected through a gas connection pipe.

3. The external pressure-storage long-distance delivery fire extinguishing system as described in claim 2, characterized in that: A bottle head valve cap is mounted on the bottle head valve body, and the bottle head valve cap has a vent hole and an upper connecting protrusion. A pilot valve seat is located at the bottom of the bottle head valve cap, and a vent hole is provided inside the pilot valve seat. The pilot valve core includes a pilot core body, which is movably mounted inside the pilot valve seat so that the vent hole is located above or below the pilot core body. One end of the pilot elastic element is connected to the pilot core body, and the other end of the pilot elastic element is connected to the pilot valve seat. One end of the compression elastic element is connected to the bottle head valve cap, and the other end of the compression elastic element is connected to the lifting valve core.

4. The external pressure-storage long-distance delivery fire extinguishing system as described in claim 3, characterized in that: The fire extinguishing team includes a primary fire extinguishing team, a middle fire extinguishing team, and a secondary fire extinguishing team. The cylinder valve of the middle fire extinguishing team is connected to the cylinder valve of the primary fire extinguishing team through a first gas connection pipe, and the cylinder valve of the secondary fire extinguishing team is connected to the cylinder valve of the middle fire extinguishing team through a second gas connection pipe.

5. The external pressure-storage long-distance delivery fire extinguishing system as described in claim 4, characterized in that: The upper connecting protrusion of the cylinder valve of the first fire extinguishing group is connected to the electromagnetic starter; the upper connecting protrusion of the cylinder valve of the middle fire extinguishing group is connected to the first pneumatic starter valve; and the upper connecting protrusion of the cylinder valve of the tail fire extinguishing group is connected to the second pneumatic starter valve.

6. The external pressure-storage long-distance delivery fire extinguishing system as described in claim 4, characterized in that: The cylinder head valve of the first fire extinguishing unit is connected to the third pneumatic start valve, which is in turn connected to the nitrogen supply cylinder group.

7. The external pressure-storage long-distance delivery fire extinguishing system as described in claim 1, characterized in that: The pressure reducing and regulating valve includes a pressure regulating valve housing, a fixing component, a pressure regulating elastic component, and a moving component. The fixing component includes a fixing ring and a fixing post. The fixing ring is disposed on the inner side wall of the pressure regulating valve housing and has a first vent hole. One end of the fixing post is fixedly connected to the fixing ring, and the other end of the fixing post forms a plug. One end of the pressure regulating elastic component is disposed on the fixing ring, and the other end of the pressure regulating elastic component is disposed on one side of the moving component. The moving component is movably disposed within the pressure regulating valve housing and has a second vent hole for inserting the plug. A vent passage is formed between the second vent hole and the outer side of the plug.

8. The external pressure-storage long-distance delivery fire extinguishing system as described in claim 3, characterized in that: An electromagnetic interface is provided on the side of the bottle valve body. The electromagnetic interface is located below the valve connector and is equipped with an electromagnetic drive device. The electromagnetic drive device is connected to the gas pipe connector through a pressure tube.

9. The external pressure-storage long-distance delivery fire extinguishing system as described in claim 1, characterized in that: The container valve includes a valve body, an input port, an output port, and a reset elastic element. The input port is located on the side of the valve body and is connected to a pressure reducing and stabilizing valve. The output port is located on the side of the valve body. The valve core is movably located within the valve body so that the input port and the output port can be connected or disconnected. The valve cover is located on the valve body. One end of the reset elastic element abuts against the valve cover, and the other end of the reset elastic element abuts against the valve core. The constant pressure opening valve is located on the side of the valve body and below the valve core.

10. The external pressure-storage long-distance delivery fire extinguishing system as described in claim 9, characterized in that: The upper part of the valve core has a groove for inserting the end of the reset elastic element, and the lower part of the valve core is provided with a guide screw. A guide hole is formed in the guide screw, and the guide hole is connected to the air chamber through the groove.

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