Quick deluge opening valve group and using method thereof

Abstract

The invention belongs to the technical field of fire fighting, and particularly relates to a rapid deluge opening valve group and a using method thereof.The rapid deluge opening valve group comprises a mechanical valve body, and an electromagnetic valve body is installed on one side of the mechanical valve body through a base block; an electromagnetic valve piston rod is arranged in the electromagnetic valve body; one end of the electromagnetic valve piston rod penetrates through the top of the electromagnetic valve body and extends to the outer side of the electromagnetic valve body, and an electromagnetic valve coil is arranged on the outer side; one side of the electromagnetic valve body is externally connected with air supply equipment through an electromagnetic valve air inlet; through cooperation of the electromagnetic valve body and the mechanical valve body, after an opening instruction is given through the control module, an electromagnetic valve coil is powered on, an electromagnetic valve piston rod is accelerated, an electromagnetic valve air inlet and an electromagnetic valve air outlet are opened, and airflow flows into the mechanical valve body through a mechanical valve air inlet in the other end of the ventilation pipeline; high-pressure gas in the mechanical valve body overcomes the resistance of the pressure spring to push the mechanical valve piston rod to be lifted upwards, so that water flow in the pipeline is sprayed to a protected area through the nozzle.

Description

Technical Field

[0001] The present invention belongs to the field of fire protection technology, and specifically relates to a quick-opening deluge valve group and its usage method. Background Art

[0002] In the existing fire protection systems, the deluge valve group, as a key fire extinguishing device, is usually used in flammable and explosive environments prone to fire such as chemical industry and dust pipeline transportation processes to protect large areas from fire threats. However, traditional deluge valve groups have problems such as slow opening speed and insensitive response. They cannot spray water for fire extinguishing in a timely and effective manner when a fire occurs, resulting in the spread of the fire and causing greater losses.

[0003] Currently, the opening mechanisms of traditional safety protection devices mainly fall into two types: electrically driven opening and differential pressure opening. Electrically driven opening mainly uses solenoid valves. By controlling the opening of the solenoid valve to release the fire extinguishing medium in the main pipeline to achieve the fire extinguishing effect. Therefore, the response speed of the entire safety protection system is slow. For example, if there is a power failure during opening, the solenoid valve will automatically close, directly affecting the control of the security equipment over the site. The differential pressure opening belongs to the manual drainage method, using manual opening instead of solenoid valve opening to ensure that the deluge system can be opened in case the solenoid valve is damaged.

[0004] In the current prior art, the opening of both types of valves requires a long time, missing the best fire extinguishing and suppression time, resulting in the spread of the fire. Moreover, after the solenoid valve is opened, due to its own principle, it has a large resistance to water flow, which is not conducive to rapid fire extinguishing. At the same time, the solenoid valve has a large power and a high temperature rise, and is not suitable for rapid fire extinguishing in dangerous dust or gas environments.

[0005] Therefore, the present invention provides a quick-opening deluge valve group and its usage method. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A quick-opening deluge valve group of the present invention includes a mechanical valve body, and a solenoid valve body is installed on one side of the mechanical valve body through a base block; a solenoid valve piston rod is arranged inside the solenoid valve body; one end of the solenoid valve piston rod penetrates through the top of the solenoid valve body and extends to the outside of the solenoid valve body, and a solenoid valve coil is arranged on the outside; a gas supply device is externally connected to one side of the solenoid valve body through a solenoid valve air inlet, and an air cavity is formed inside the solenoid valve body; a control module is arranged between the solenoid valve body and the mechanical valve body, and the control module is electrically connected to the fire alarm module;

[0008] There are two ventilation pipes installed inside the base block; there is a solenoid valve exhaust port at the bottom on the side of the air cavity away from the solenoid valve intake port; there is a mechanical valve intake port at the bottom of the mechanical valve body, and the solenoid valve exhaust port and the mechanical valve intake port are respectively arranged at both ends of the lower ventilation pipe; there is a mechanical valve exhaust port at the top of the mechanical valve body, and the exhaust port is installed on the solenoid valve through the upper ventilation pipe, and an exhaust valve is installed on the upper ventilation pipe.

[0009] Preferably, there is a mechanical valve piston rod inside the mechanical valve body, a quick connector is arranged at the top of the mechanical valve piston rod, and a first seal is installed at the connection between both ends of the mechanical valve piston rod and the mechanical valve; a sleeve pipe is arranged outside the mechanical valve piston rod, and a compression spring is arranged between the sleeve pipe and the mechanical valve body; the first seal uses an O-ring.

[0010] Preferably, there is a nozzle at the bottom of the mechanical valve body; there is a locking part between the top of the nozzle and the bottom of the mechanical valve piston rod, and a second seal is arranged between the locking part and the mechanical valve piston rod, and the second seal uses a rubber gasket.

[0011] Preferably, a lip seal air cavity is opened inside the mechanical valve body; the first seals are respectively arranged at the ends of the lip seal air cavity.

[0012] Preferably, a spring is fixedly connected to the bottom of the solenoid valve piston rod, a pressure sensor is fixedly connected to the inner wall of the bottom of the air cavity, and the bottom of the spring is fixedly connected to the top of the pressure sensor.

[0013] Preferably, a temperature sensor is installed at the bottom of the solenoid valve body; the temperature sensor is electrically connected to an external control module.

[0014] Preferably, both the solenoid valve body and the mechanical valve body are made of 304 stainless steel, and the air path pressure is 0.6 - 0.8 MPa. The solenoid valve body also includes a short-circuit protection module, and the mechanical valve body adopts a full-bore design.

[0015] Preferably, a method for using a quick deluge opening valve group includes the following steps:

[0016] S1: When the fire alarm module is triggered, confirm the location and nature of the fire, and judge whether it is necessary to start the quick deluge opening valve group through the control module;

[0017] S2: Based on the fire alarm module, instruct the solenoid valve coil to be energized through the control module, squeeze and circulate the air flow in the air cavity inside the mechanical valve body, and the high-pressure air overcomes the resistance of the compression spring to push the mechanical valve piston rod, so that the water flow in the pipeline is sprayed to the protected area through the nozzle;

[0018] S3: After the fire alarm module confirms safety, it instructs the solenoid valve coil to lose power through the control module. The solenoid valve body closes, and the high-pressure gas in the mechanical valve body is quickly discharged. The mechanical valve piston, under the action of the compression spring, closes the valve body with the mechanical valve piston rod, realizing an automatic reset to the initial state.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. For a quick deluge opening valve group and its usage method described in the present invention, through the cooperation of the solenoid valve body and the mechanical valve body, after receiving an opening instruction through the control module, the solenoid valve coil is energized, the solenoid valve piston rod speeds up, the solenoid valve air inlet and the solenoid valve exhaust port are opened, enabling air flow to pass through the other end of the ventilation pipe, the mechanical valve air inlet, and flow into the mechanical valve body. The high-pressure gas in the mechanical valve body overcomes the resistance of the compression spring and pushes the mechanical valve piston rod upward, allowing the water flow in the pipeline to be sprayed onto the protected area through the nozzle.

[0021] 2. For a quick deluge opening valve group and its usage method described in the present invention, by setting pressure sensors and temperature sensors, as the working state of the solenoid valve body changes, the pressure in the air chamber also changes accordingly. The electrical signals of the pressure sensors can be transmitted to the control module as feedback signals, and the control module precisely controls the working state of the solenoid valve body based on these signals; through temperature limit control, it ensures safer long-term power-on of the solenoid valve body.

[0022] 3. For a quick deluge opening valve group and its usage method described in the present invention, the outer shell of the mechanical valve body needs to be designed for explosion protection to meet the environment where dangerous dust and dangerous gases exist for a long time; it adopts a full-bore design and controls the movement of the piston inside the mechanical valve body to open or close the valve through the principle of electromagnetic switching, which can effectively reduce the resistance of the valve body to the liquid, enabling the fire extinguishing medium to be sprayed onto the protected area quickly and in large quantities. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the drawings.

[0024] Figure 1 is a perspective view of the present invention;

[0025] Figure 2 is a sectional view of the present invention;

[0026] Figure 3 is a sectional view of the mechanical valve body in the present invention;

[0027] Figure 4 is a sectional view of the solenoid valve body in the present invention;

[0028] Figure 5 is a structural schematic diagram of the mechanical valve and the solenoid valve in the present invention;

[0029] Figure 6 is the method flow chart for the use of the valve group in the present invention;

[0030] In the figure: 1. Mechanical valve body; 2. Quick connector; 3. First seal; 4. Lip seal air cavity; 5. Mechanical valve piston rod; 6. Compression spring; 7. Second seal; 8. Locking piece; 9. Nozzle; 10. Mechanical valve air inlet; 11. Mechanical valve exhaust port; 12. Exhaust valve; 13. Base block; 14. Solenoid valve body; 15. Solenoid valve coil; 16. Solenoid valve air inlet; 17. Solenoid valve exhaust port; 18. Solenoid valve piston rod; 19. Temperature sensor; 20. Spring; 21. Pressure sensor. Specific embodiments

[0031] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0032] As Figures 1 to 5 shown, a quick rain shower opening valve group and its use method according to an embodiment of the present invention, a quick rain shower opening valve group includes a mechanical valve body 1, and a solenoid valve body 14 is installed on one side of the mechanical valve body 1 through a base block 13; a solenoid valve piston rod 18 is arranged inside the solenoid valve body 14; one end of the solenoid valve piston rod 18 penetrates through the top of the solenoid valve body 14 and extends to the outside of the solenoid valve body 14, and a solenoid valve coil 15 is arranged on the outside; a gas supply device is externally connected to one side of the solenoid valve body 14 through a solenoid valve air inlet 16, and an air cavity is formed inside the solenoid valve body 14; a control module is arranged between the solenoid valve body 14 and the mechanical valve body 1, and the control module is electrically connected to a fire alarm module;

[0033] Two ventilation pipes are installed in the base block 13; a solenoid valve exhaust port 17 is arranged at the bottom end of the air cavity away from the solenoid valve air inlet 16; a mechanical valve air inlet 10 is arranged at the bottom end of the mechanical valve body 1, and the solenoid valve exhaust port 17 and the mechanical valve air inlet 10 are respectively arranged at both ends of the lower ventilation pipe; a mechanical valve exhaust port 11 is arranged at the top end of the mechanical valve body 1, and the exhaust port is installed on the solenoid valve through the upper ventilation pipe, and an exhaust valve 12 is installed on the upper ventilation pipe.

[0034] When the mechanical valve body 1, solenoid valve body 14 and solenoid valve coil 15 provided by the present invention are in use, the fire alarm module monitors the fire situation to confirm the location and nature of the fire. The control module determines whether it is necessary to start the quick drenching opening valve group. After the control module issues an opening instruction to the quick drenching opening valve group, the solenoid valve coil 15 is energized, the solenoid valve piston rod 18 speeds up, the solenoid valve air inlet 16 and the solenoid valve exhaust port 17 are opened, and the air flow passes through the mechanical valve air inlet 10 at the other end of the ventilation pipeline and flows into the mechanical valve body 1. The high-pressure gas in the mechanical valve body 1 overcomes the resistance of the compression spring 6 and pushes the mechanical valve piston rod 5 upward, so that the water flow in the pipeline is sprayed to the protected area through the nozzle 9;

[0035] When the fire alarm module confirms safety, an instruction is issued through the control module, the solenoid valve coil 15 is de-energized, the solenoid valve body 14 is closed, the high-pressure gas in the mechanical valve body 1 flows to the solenoid valve body 14 through the mechanical valve exhaust port 11 and is discharged through the exhaust valve 12. Under the action of the compression spring 6, the mechanical valve piston makes the mechanical valve piston tangent to the second seal 7 to close the valve body and return to the initial state automatically.

[0036] The mechanical valve exhaust port 11 can be set to be normally open or normally closed in a specific environment. It is normally closed under normal safety protection conditions until the main pipeline or the mechanical exhaust valve 12 is manually opened to relieve pressure and then the mechanical valve resets automatically; in the test state, the mechanical valve piston rod 5 is normally open, and the valve body resets automatically through the time delay control or power-off of the control module.

[0037] The electrical schematic diagram of the solenoid valve coil is as Figure 1 shown, where L1 is denoted as the solenoid valve coil, and the inside of the dotted line box represents the potting design.

[0038] As Figure 2 and Figure 3 shown, a mechanical valve piston rod 5 is provided inside the mechanical valve body 1. A quick connector 2 is provided at the top of the mechanical valve piston rod 5. First seals 3 are installed at the connections between both ends of the mechanical valve piston rod 5 and the mechanical valve; a sleeve pipe is provided outside the mechanical valve piston rod 5, and a compression spring 6 is provided between the sleeve pipe and the mechanical valve body 1; the first seal 3 adopts an O-ring.

[0039] When the first seal 3 and the compression spring 6 provided by the present invention are in use, the mechanical valve piston rod 5 is used to generate pressure and motion and transmit them to the mechanical valve, thereby realizing the opening and closing of the mechanical valve; the O-ring seals are installed at the joints between the two ends of the mechanical valve piston rod 5 and the mechanical valve body 1, and between the outer sleeve pipe of the piston rod and the mechanical valve body 1, forming an effective sealing barrier to prevent high-pressure gas from leaking along the gap between the piston rod and the valve body, and at the same time preventing external impurities from entering the valve body interior to ensure the normal operation of the valve; the sleeve pipe is located outside the mechanical valve piston rod 5 and forms a certain gap with the mechanical valve body 1, which is used to accommodate the compression spring 6 and provide a guiding function. The compression spring 6 is installed inside the sleeve pipe and applies a pre-tightening force to the mechanical valve piston rod 5 to keep it always in close contact with the valve seat, thereby achieving a good sealing effect.

[0040] As Figure 3 shown, a nozzle 9 is provided at the bottom of the mechanical valve body 1; a locking member 8 is provided between the top of the nozzle 9 and the bottom of the mechanical valve piston rod 5, and a second seal 7 is provided between the locking member 8 and the mechanical valve piston rod 5. The second seal 7 is made of a rubber gasket.

[0041] When the nozzle 9 provided by the present invention is in use, it is used to spray fire extinguishing agent or water flow to quickly cover or treat the target area; the locking member 8 is located between the top of the nozzle 9 and the bottom of the mechanical valve piston rod 5 and is used to tightly connect and fix the nozzle 9 to the piston rod to prevent loosening or displacement during operation. The locking member 8 is fastened with bolts to ensure the reliability and stability of the connection; the second seal 7 is installed between the locking member 8 and the mechanical valve piston rod 5 to prevent the working medium from leaking along the gap between the piston rod and the nozzle 9 and ensure the sealing and safety of the system.

[0042] As Figure 3 shown, a lip seal air cavity 4 is formed inside the mechanical valve body 1; the first seal 3 is respectively provided at the ends of the lip seal air cavity 4.

[0043] When the lip seal air cavity 4 provided by the present invention is in use, it is used to ensure that when the valve is closed, the gap between the piston rod and the valve body is effectively sealed to prevent medium leakage. The first seal 3 not only enhances the sealing performance of the mechanical valve body 1, but also can withstand the frictional force generated during the movement of the mechanical valve piston rod 5 to protect the mechanical valve piston rod 5 from wear.

[0044] As Figure 2 and Figure 4 shown, a spring 20 is fixedly connected to the bottom of the solenoid valve piston rod 18, a pressure sensor 21 is fixedly connected to the inner wall of the bottom of the air cavity, and the bottom of the spring 20 is fixedly connected to the top of the pressure sensor 21.

[0045] When the pressure sensor 21 provided by the present invention is in use, the pressure sensor 21 fixedly connected to the inner wall of the bottom of the air cavity is used to monitor the pressure change in the air cavity in real time. As the working state of the solenoid valve body 14 changes, the pressure in the air cavity also changes accordingly. The pressure sensor 21 can convert these pressure changes into electrical signals for output. The electrical signals of the pressure sensor 21 can be transmitted to the control module as feedback signals. The control module precisely controls the working state of the solenoid valve body 14 based on these signals to ensure the stability and reliability of the solenoid valve body 14. Moreover, the spring 20 at the bottom of the solenoid valve piston rod 18 generates a certain elastic force during the movement of the piston rod. This elastic force directly acts on the pressure sensor 21. As the solenoid valve piston rod 18 moves up and down, the compression or elongation amount of the spring 20 changes, resulting in a corresponding change in the pressure received by the pressure sensor 21.

[0046] As Figure 4 shown, a temperature sensor 19 is installed at the bottom of the solenoid valve body 14; the temperature sensor 19 is electrically connected to an external control module.

[0047] The temperature sensor 19 provided by the present invention is used to monitor the temperature of the environment or medium where the solenoid valve body 14 is located in real time during use. When the temperature sensor 19 monitors the temperature of the environment or medium where the solenoid valve body 14 is located, it converts the temperature signal into an electrical signal and sends it to the external control module. After receiving the signal, the external control module performs further data processing and analysis to extract useful information; based on the processed temperature data, temperature limit control is carried out to ensure safer long-term power-on of the solenoid valve body 14.

[0048] As Figure 1 shown, both the solenoid valve body 14 and the mechanical valve body 1 are made of 304 stainless steel, and the air circuit pressure is set to 0.6 - 0.8 MPa. The solenoid valve body 14 further includes a short-circuit protection module, and the mechanical valve body 1 adopts a full-bore design.

[0049] When the solenoid valve body 14 and the mechanical valve body 1 provided by the present invention are in use, the outer shell needs to be explosion-proof designed to meet the usage environment. It is made of 304 stainless steel material and can be used for anti-corrosion. The solenoid valve body 14 is integrally encapsulated in a stainless steel shell, and the electric control part is completely isolated from the outside world. The wire outlet method adopts a standard M20*1.5 explosion-proof locking set, which brings convenience to subsequent construction. The mechanical valve body 1 adopts a full-bore design. By the principle of electromagnetic switching, the air source is controlled to push the piston inside the mechanical valve body 1 to open or close the valve, which can effectively reduce the resistance of the valve body to the liquid, so that the fire extinguishing medium can be sprayed into the protected area quickly and in large quantities. By controlling the air circuit, the pushing of the piston is realized, and the air circuit pressure is designed to be 0.6-0.8 MPa. The solenoid valve body 14 also includes a short-circuit protection module, which is turned on by high voltage. After the coil is energized, the magnetic field generated by the coil is maintained by low voltage, thereby reducing the heat generation of the coil.

[0050] As Figure 6 shown, a method for using a quick-response deluge opening valve group includes the following steps:

[0051] S1: After the fire alarm module is triggered, confirm the location and nature of the fire, and judge whether it is necessary to start the quick-response deluge opening valve group through the control module;

[0052] S2: Based on the fire alarm module, instruct the solenoid valve coil 15 to be energized through the control module, squeeze and circulate the air flow in the air cavity in the mechanical valve body 1, and the high-pressure air overcomes the resistance of the compression spring 6 to push the mechanical valve piston rod 5, so that the water flow in the pipeline is sprayed to the protected area through the nozzle 9;

[0053] S3: After the fire alarm module confirms safety, instruct the solenoid valve coil 15 to lose power through the control module, the solenoid valve body 14 closes, the high-pressure gas in the mechanical valve body 1 is quickly discharged, and the mechanical valve piston closes the valve body of the mechanical valve piston rod 5 under the action of the compression spring 6 to realize automatic reset to the initial state.

[0054] Working principle: Monitor the fire situation through the fire alarm module, confirm the location and nature of the fire, and judge whether it is necessary to start the quick-response deluge opening valve group through the control module. When the control module issues an opening instruction to the quick-response deluge opening valve group, the solenoid valve coil 15 is energized, the solenoid valve piston rod 18 speeds up, the solenoid valve air inlet 16 and the solenoid valve exhaust port 17 are opened, and the air flow passes through the other end of the ventilation pipeline, the mechanical valve air inlet 10, and flows into the mechanical valve body 1. The high-pressure gas in the mechanical valve body 1 overcomes the resistance of the compression spring 6 to push the mechanical valve piston rod 5 upward, so that the water flow in the pipeline is sprayed to the protected area through the nozzle 9;

[0055] After the fire alarm module confirms safety, it issues an instruction through the control module. The solenoid valve coil 15 loses power, the solenoid valve body 14 closes, and the high-pressure gas in the mechanical valve body 1 flows through the mechanical valve exhaust port 11 to the solenoid valve body 14 and is discharged through the exhaust valve 12. Under the action of the compression spring 6, the mechanical valve piston makes the mechanical valve piston tangent to the second seal 7 to close the valve body, realizing automatic reset to the initial state.

[0056] Among them, the mechanical valve exhaust port 11 can be set to normally open or normally closed under specific environments. It is normally closed under normal safety protection conditions until the main pipeline or the mechanical exhaust valve 12 is manually interfered to open and relieve pressure, and then the mechanical valve automatically resets; in the test state, the mechanical valve piston rod 5 is normally open, and the valve body realizes automatic reset through the time-delay control or power-off of the control module.

[0057] The pressure sensor 21 is used to monitor the pressure change in the air chamber in real time. As the working state of the solenoid valve body 14 changes, the pressure in the air chamber will also change accordingly. The pressure sensor 21 can convert these pressure changes into electrical signals for output. The electrical signal of the pressure sensor 21 can be used as a feedback signal to be transmitted to the control module, and the control module precisely controls the working state of the solenoid valve body 14 according to these signals to ensure the stability and reliability of the solenoid valve body 14;

[0058] The temperature sensor 19 is used to monitor the temperature of the environment or medium where the solenoid valve body 14 is located in real time during use. When the temperature sensor 19 monitors the temperature of the environment or medium where the solenoid valve body 14 is located, it will convert the temperature signal into an electrical signal and send it to the external control module. After receiving the signal, the external control module will perform further data processing and analysis to extract useful information; based on the processed temperature data, temperature limit control is carried out to ensure the long-term power-on of the solenoid valve body 14 is safer.

[0059] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-rain-shower opening valve group, comprising a mechanical valve body (1), and a solenoid valve body (14) is installed on one side of the mechanical valve body (1) through a base block (13); characterized in that: The solenoid valve body (14) is provided with a solenoid valve piston rod (18); one end of the solenoid valve piston rod (18) penetrates through the top of the solenoid valve body (14) and extends to the outside of the solenoid valve body (14), and a solenoid valve coil (15) is arranged on the outside; one side of the solenoid valve body (14) is externally connected with a gas supply device through a solenoid valve air inlet (16), and an air cavity is formed inside the solenoid valve body (14); a control module is arranged between the solenoid valve body (14) and the mechanical valve body (1), and the control module is electrically connected with a fire alarm module; Two ventilation pipes are installed in the base block (13); a solenoid valve exhaust port (17) is arranged at the bottom end of the air cavity on the side far from the solenoid valve air inlet (16); a mechanical valve air inlet (10) is arranged at the bottom end of the mechanical valve body (1), and the solenoid valve exhaust port (17) and the mechanical valve air inlet (10) are respectively arranged at two ends of the lower ventilation pipe; a mechanical valve exhaust port (11) is arranged at the top end of the mechanical valve body (1), and the exhaust port is installed on the solenoid valve through the upper ventilation pipe, and an exhaust valve (12) is installed on the upper ventilation pipe.

2. The quick-rain-shower opening valve set according to claim 1, characterized in that: A mechanical valve piston rod (5) is arranged inside the mechanical valve body (1), a quick connector (2) is arranged at the top of the mechanical valve piston rod (5), and a first seal (3) is installed at the connection between the two ends of the mechanical valve piston rod (5) and the mechanical valve; a sleeve pipe is arranged on the outside of the mechanical valve piston rod (5), and a compression spring (6) is arranged between the sleeve pipe and the mechanical valve body (1); the first seal (3) is an O-ring seal.

3. The quick rain shower opening valve group according to claim 2, wherein: A nozzle (9) is arranged at the bottom of the mechanical valve body (1); a locking member (8) is arranged between the top of the nozzle (9) and the bottom of the mechanical valve piston rod (5), and a second seal (7) is arranged between the locking member (8) and the mechanical valve piston rod (5), and the second seal (7) is a rubber gasket.

4. A quick-rain-shower opening valve group according to claim 3, characterized in that: A lip seal air cavity (4) is formed inside the mechanical valve body (1); the first seal (3) is respectively arranged at the ends of the lip seal air cavity (4).

5. The quick-rain-shower opening valve group according to claim 4, wherein: A spring (20) is fixedly connected to the bottom of the solenoid valve piston rod (18), a pressure sensor (21) is fixedly connected to the inner wall of the bottom of the air cavity, and the bottom of the spring (20) is fixedly connected to the top of the pressure sensor (21).

6. The quick rain shower opening valve group according to claim 5, characterized in that: A temperature sensor (19) is installed at the bottom of the solenoid valve body (1); the temperature sensor (19) is electrically connected with an external control module.

7. A quick-rain-shower opening valve group according to claim 6, characterized in that: Both the solenoid valve body (14) and the mechanical valve body (1) are made of 304 stainless steel, and the air path pressure is set to 0.6 - 0.8 MPa. The solenoid valve body (14) also includes a short-circuit protection module, and the mechanical valve body (1) adopts a full-bore design.

8. A method for using a quick-rain-shower opening valve group, applicable to the quick-rain-shower opening valve group according to any one of claims 1-7, characterized in that: Its usage method includes the following steps: S1: After the fire alarm module is triggered, confirm the location and nature of the fire, and judge whether it is necessary to start the quick deluge opening valve group through the control module; S2: Based on the fire alarm module, the control module instructs the solenoid valve coil (15) to be energized, squeezing and circulating the air flow in the air chamber within the mechanical valve body (1). The high-pressure air overcomes the resistance of the compression spring (6) to push the mechanical valve piston rod (5), enabling the water flow in the pipeline to be sprayed onto the protected area through the nozzle (9). S3: After the fire alarm module confirms safety, the control module instructs the solenoid valve coil (15) to be de-energized, the solenoid valve body (14) closes, and the high-pressure gas in the mechanical valve body (1) is quickly discharged. Under the action of the compression spring (6), the mechanical valve piston closes the valve body of the mechanical valve piston rod (5), realizing automatic reset to the initial state.

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