Intelligent pressure monitoring valve

Abstract

The application discloses an intelligent pressure monitoring valve and relates to the field of fire-fighting equipment.The valve body is provided with a valve cavity, a valve core assembly is slidably arranged in the valve cavity, a valve cover assembly is arranged on the top of the valve body and covers the top of the valve cavity, a connecting head is arranged on the top of the valve cover assembly, and a pressure monitoring assembly is embedded on the valve body and can monitor the pressure in the valve cavity.The intelligent pressure monitoring valve can solve the problems of large space occupation, environmental interference, data distortion and leakage at the connection of an external pressure monitoring device.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fire-fighting equipment, in particular to an intelligent pressure monitoring valve. BACKGROUND

[0002] The valve is a device that keeps the pressure in the fire extinguishing agent bottle stable in normal state, prevents leakage, and can quickly release the fire extinguishing agent in case of fire. Many traditional valves lack real-time pressure monitoring function, which makes it difficult for workers to detect and take effective measures in time when pressure relief or abnormal conditions occur, affecting the safety and reliability of the equipment. To solve this problem, a mechanical pressure gauge or a transmitter is usually connected to the valve on the fire extinguishing agent bottle. However, such external pressure monitoring devices occupy a large space and are easily disturbed by the environment (such as vibration, humidity), resulting in distorted data, and are prone to leakage at the connection, thereby affecting the service life of the fire extinguishing agent bottle. SUMMARY

[0003] The purpose of the present application is to provide an intelligent pressure monitoring valve that can solve the problems of large space occupation, environmental disturbance, data distortion, and leakage at the connection of external pressure monitoring devices.

[0004] The above-mentioned optimized structure of the present application is realized by the following technical scheme: an intelligent pressure monitoring valve, comprising a valve body;

[0005] a valve cavity provided in the valve body;

[0006] a valve core assembly slidably provided in the valve cavity;

[0007] a valve cover assembly provided at the top of the valve body and sealed at the top of the valve cavity;

[0008] a connector provided at the top of the valve cover assembly;

[0009] a pressure monitoring assembly embedded on the valve body and capable of monitoring the pressure in the valve cavity.

[0010] In some embodiments, the valve body includes a fire extinguishing agent inlet provided at the bottom of the valve body and in communication with the fire extinguishing agent bottle and the valve cavity;

[0011] a fire extinguishing agent outlet provided on the side of the valve body and in communication with the fire extinguishing nozzle and the valve cavity, and the pressure monitoring assembly is provided between the fire extinguishing agent inlet and the fire extinguishing agent outlet.

[0012] In some embodiments, the valve core assembly includes a valve core body that can be slidably provided in the valve cavity;

[0013] a cover cap arranged at the bottom of the valve core body;

[0014] a first sealing ring arranged between the valve core body and the cover cap;

[0015] a communication hole penetrating through the valve core body and the cover cap;

[0016] a second sealing ring coaxially arranged at the top of the valve core body and in sliding and sealing connection with the inner wall of the valve cavity;

[0017] In some embodiments, the valve cover assembly comprises a cover body, the top of which is detachably connected with the connecting head;

[0018] a mounting groove arranged at the bottom of the cover body and detachably connected with the top of the valve body;

[0019] an exhaust hole penetrating through the cover body and in communication with the valve cavity;

[0020] a first diaphragm arranged at the top of the exhaust hole;

[0021] a sealing member arranged between the valve body and the mounting groove;

[0022] In some embodiments, the sealing member comprises a first ring groove arranged at the inner bottom wall of the mounting groove;

[0023] a third sealing ring arranged in the first ring groove;

[0024] a second ring groove arranged at the junction of the bottom wall and the side wall of the mounting groove;

[0025] a third ring groove arranged on the outer side wall of the bottom of the valve body;

[0026] a sealing gasket arranged between the second ring groove and the third ring groove;

[0027] In some embodiments, the pressure monitoring assembly comprises a fixing groove penetrating through one side wall of the valve body and arranged between the fire extinguishing agent inlet and the fire extinguishing agent outlet;

[0028] a pressure sensor arranged in the fixing groove, and the measuring end of the pressure sensor extends into the valve cavity;

[0029] a pressure display member connected with the pressure sensor and arranged on the side of the fixing groove away from the valve cavity, and the side face of the pressure display member away from the pressure sensor is flush with the end face of the fixing groove.

[0030] In some embodiments, the pressure monitoring assembly further comprises a stabilizing layer, which is arranged between the inner wall of the fixing groove and the pressure sensor and the pressure display.

[0031] In some embodiments, the fixing groove comprises a plug-in part, which is arranged on the side of the fixing groove close to the valve cavity and is in plug-in cooperation with the pressure sensor.

[0032] A first filling part is coaxially connected with the plug-in part and coaxially arranged with the pressure sensor.

[0033] A second filling part is coaxially connected with the first filling part and coaxially arranged with the pressure display, and the stabilizing layer is arranged between the first filling part and the second filling part.

[0034] In some embodiments, a damping assembly is further arranged between the valve core assembly and the valve cover assembly, and the damping assembly comprises a damping groove arranged on the top of the valve core assembly.

[0035] A damping spring is arranged at the bottom of the damping groove and at the top of the valve cover assembly.

[0036] In some embodiments, a safety assembly is further arranged, and the safety assembly comprises a safety groove arranged on the side wall of the valve body and in communication with the valve cavity.

[0037] A second diaphragm is arranged in the safety groove.

[0038] A safety plug is in screwing cooperation with the safety groove.

[0039] An air vent is arranged through the safety plug.

[0040] The one or more technical solutions described above in the embodiments of the present application have at least the following technical effects or advantages:

[0041] (1) The pressure monitoring assembly is embedded in the valve body, so that the measuring end of the pressure monitoring assembly is directly in contact with the valve cavity, the influence of the environment is small, the equipment failure and false alarm caused by rust and poor sealing are reduced, the installation of the pressure monitoring equipment can be completed only by installing the valve during installation, the connection points and external pipelines are reduced, the potential leakage points are reduced, the installation hidden danger is reduced, and the reliability and measurement accuracy of the system are improved.

[0042] (2) The pressure monitoring assembly is wirelessly connected with an intelligent alarm system and an Internet of Things linkage system, so that the pressure state can be remotely and accurately viewed in real time without manual operation, the timeliness and accuracy of monitoring are improved, the personnel inspection pressure is reduced, the work efficiency is improved, the alarm can be automatically given in an abnormal situation, the maintenance party is timely informed of the alarm information, data are recorded and analyzed, the responsibility and equipment management are facilitated, and predictive maintenance is realized. BRIEF DESCRIPTION OF DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0044] Figure 1 It is a structural schematic view of the present application;

[0045] Figure 2 It is a sectional view of the present application;

[0046] Figure 3 It is a sectional schematic view of the present application;

[0047] Figure 4 It is an enlarged view of A in the present application Figure 3

[0048] In the figure: 1, valve body; 11, fire extinguishing agent inlet; 12, fire extinguishing agent outlet; 2, valve cavity; 3, valve core assembly; 31, valve core body; 32, gland; 33, first sealing ring; 34, communication hole; 35, second sealing ring; 4, valve cover assembly; 41, cover body; 42, exhaust hole; 43, first diaphragm; 44, sealing element; 441, third sealing ring; 442, sealing washer; 5, connecting head; 6, pressure monitoring assembly; 61, pressure sensor; 62, pressure display element; 63, stabilizing layer; 7, drop amplitude assembly; 71, drop amplitude groove; 72, drop amplitude spring; 8, safety assembly; 81, second diaphragm; 82, safety plug; 83, air vent hole; 9, blowout prevention assembly; 91, blowout prevention cover, 92, chain; 93, fixing pin. DETAILED DESCRIPTION

[0049] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0050] ​In the description of the application, it is to be understood by the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0051] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0052] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] Reference Figures 1-4The utility model provides a kind of intelligent pressure monitoring valve, including valve body 1, valve body 1 is installed on fire extinguishing agent bottle, as the main body structure of whole valve, provide mounting space and support for internal components, valve body 1 is equipped with valve cavity 2, valve cavity 2 can be slidably provided for the activity of valve core component 3 And fire extinguishing agent's flow provide space, valve cavity 2 is equipped with the valve core component 3 of slidable, by the sliding of valve core component 3 In valve cavity 2, the flow of fire extinguishing agent can be controlled, to control the opening and closing of valve, valve cover component 4 is located at the top of valve body 1, and is equipped in the top of valve cavity 2, play the role of protection internal components and sealing, valve cover component 4 top is equipped with connector 5, can be used to connect external equipment (such as electromagnetic type driving device etc.), to open valve when needed, make fire extinguishing agent in fire extinguishing agent bottle flow out, to realize the fire extinguishing function of fire extinguishing agent bottle, pressure monitoring component 6 is embedded in valve body 1, can monitor the pressure in valve cavity 2, pressure monitoring component 6 is completely sealed in valve body 1, little by external environment Influence, avoid the problem that pressure monitoring component 6 is easily damaged in low temperature, high humidity, strong vibration and other harsh environments, so that pressure monitoring component 6 can maintain stable monitoring performance under various working conditions, not prone to equipment failure due to rust, leakage and false alarm due to sealing, at the same time, can reduce connection point and pipeline, improve the reliability of system, and real-time fire extinguishing agent bottle pressure value can be read without manual operation, improve the timeliness and accuracy of monitoring.

[0054] In some embodiments, valve body 1 includes fire extinguishing agent inlet 11, fire extinguishing agent outlet 12, fire extinguishing agent inlet 11 is located at the bottom of valve body 1, which is the entrance of fire extinguishing agent into the valve, and is in communication with the fire extinguishing agent bottle and valve cavity 2, to ensure that the fire extinguishing agent can smoothly enter the valve cavity 2, the fire extinguishing agent outlet 12 is arranged on the side surface of the valve body 1 and is in communication with the fire extinguishing nozzle and the valve cavity 2, so that the fire extinguishing agent in the valve cavity 2 can be delivered to the fire extinguishing nozzle for fire extinguishing operation, and the pressure monitoring component 6 is arranged between the fire extinguishing agent inlet 11 and the fire extinguishing agent outlet 12, which can accurately monitor the pressure in the valve cavity 2 when the fire extinguishing agent flows, thereby improving the accuracy of the monitoring value of the pressure monitoring component 6.

[0055] In some embodiments, valve core component 3 includes valve core body 31, gland 32, first sealing ring 33, communication hole 34 and second sealing ring 35, valve core body 31 is slidably arranged in valve cavity 2 to control the flow of fire extinguishing agent, gland 32 is arranged at the bottom of valve core body 31 to fix and protect first sealing ring 33, first sealing ring 33 is arranged between valve core body 31 and gland 32 to prevent leakage of fire extinguishing agent, communication hole 34 penetrates valve core body 31 and gland 32 to realize the communication between the upper and lower cavities of valve core component 3, so that the airflow can flow through communication hole 34 to balance the pressure in the upper and lower cavities, and second sealing ring 35 is coaxially arranged on the top of valve core body 31 and is in sliding and sealing connection with the inner wall of valve cavity 2 to ensure the sealing of valve cavity 2 during the sliding of valve core body 31.

[0056] In some embodiments, the valve cover assembly 4 comprises a cover body 41, a mounting groove, an exhaust hole 42, a first diaphragm 43, a sealing element 44, the top of the cover body 41 is detachably connected with the connecting head 5, facilitating later disassembly and maintenance, the mounting groove is arranged at the bottom of the cover body 41 and is detachably connected with the top of the valve body 1, so that the valve cover assembly 4 and the valve body 1 can be mounted and fixed, the exhaust hole 42 penetrates through the cover body 41 and communicates with the valve cavity 2, so that the gas in the valve cavity 2 can be discharged to change the pressure distribution in the valve cavity 2, so that the valve core assembly 3 slides in the valve cavity 2, thereby realizing the control of the flow of the fire extinguishing agent; the first diaphragm 43 is arranged at the top of the exhaust hole 42 to seal the valve cavity 2, and the sealing element 44 is arranged between the valve body 1 and the mounting groove to enhance the sealing performance of the connection between the valve body 1 and the mounting groove.

[0057] In some embodiments, the sealing element 44 comprises a first ring groove, a third sealing ring 441, a second ring groove, a third ring groove, and a sealing gasket 442, the first ring groove is arranged in the inner bottom wall of the mounting groove, the third sealing ring 441 is arranged in the first ring groove, the second ring groove is arranged at the connection between the bottom wall and the side wall of the mounting groove, the third ring groove is arranged on the outer side wall of the bottom of the valve body 1, and the sealing gasket 442 is arranged between the second ring groove and the third ring groove. The third sealing ring 441 can enhance the sealing performance of the bottom of the mounting groove, the sealing gasket 442 can enhance the sealing performance of the connection between the valve body 1 and the valve cover assembly 4, and the double sealing structure can ensure the sealing performance of the connection between the valve body 1 and the valve cover assembly 4 to prevent leakage of the fire extinguishing agent.

[0058] In some embodiments, referring to Figure 4 , the pressure monitoring assembly 6 comprises a fixing groove, a pressure sensor 61, and a pressure display element 62, the fixing groove penetrates through one side wall of the valve body 1 and is arranged between the fire extinguishing agent inlet 11 and the fire extinguishing agent outlet 12 to provide mounting positions for the pressure sensor 61 and the pressure display element 62, the pressure sensor 61 is arranged in the fixing groove, the measurement end of the pressure sensor 61 extends into the valve cavity 2, the pressure in the valve cavity 2 can be monitored in real time, the pressure loss of the external measurement device is reduced, and the measurement accuracy is improved, the pressure display element 62 is connected with the pressure sensor 61, the pressure display element 62 is arranged on the side of the fixing groove away from the valve cavity 2, the pressure display element 62 can be a liquid crystal display screen, the pressure data monitored by the pressure sensor 61 can be displayed, and the staff can check conveniently, and the side face of the pressure display element 62 away from the pressure sensor 61 is flush with the end face of the fixing groove, so that damage caused by the pressure display element 62 protruding from the side wall of the valve body 1 is avoided. The pressure sensor 61 monitors the pressure in the valve cavity 2 in real time, when the pressure changes, the pressure sensor 61 transmits the pressure signal to the pressure display element 62, and the pressure display element 62 displays the pressure data intuitively.

[0059] The pressure sensor 61 can be a high-precision pressure sensor with wireless data transmission. The pressure sensor 61 can be wirelessly connected to a smart alarm system and an Internet of Things linkage system, and can transmit real-time pressure signals to the smart alarm system and the Internet of Things linkage system. This can reduce the pressure of personnel inspection, and can remotely view the real-time pressure state of each monitoring point, discover abnormalities in time and take measures, improve work efficiency, reduce labor costs, provide reliable data support for fine management of maintenance parties, and ensure the safe and stable operation of the system.

[0060] Specifically, when the pressure is lower than the preset range, the smart alarm system triggers an alarm mechanism to notify relevant personnel. When the fire extinguishing agent bottle is disassembled or sprayed, the smart alarm system records the abnormal pressure value to prevent users from disassembling or modifying it privately, and can upload these abnormal events and specific time, pressure change data, etc. information to the cloud platform in real time to form a complete device usage record. This not only helps to trace the responsibility, but also provides detailed data basis for subsequent equipment maintenance and management.

[0061] When the Internet of Things pressure monitoring valve generates an alarm signal, the alarm information can be transmitted to the cloud platform in a timely manner by using LoRa / 4G, etc. After receiving the pressure anomaly, the cloud platform notifies the maintenance party in real time through SMS, telephone, and WeChat push. Compared with traditional wired pressure monitoring, the installation difficulty is reduced, and the equipment maintenance is more intelligent and accurate. The system can analyze the pressure change trend based on historical data to provide early warning of possible failures and realize predictive maintenance. This not only improves the reliability of the device operation, but also reduces the cost of manual inspection, and provides strong support for the intelligent transformation of fire-fighting facilities.

[0062] In some embodiments, the pressure monitoring assembly 6 further comprises a stabilizing layer 63 disposed between the inner wall of the fixing groove and the pressure sensor 61 and the pressure display piece 62, which can realize stable installation of the pressure sensor 61 and the pressure display piece 62 in the installation groove, prevent displacement or damage during valve operation, and the stabilizing layer 63 can be formed by filling and solidifying epoxy resin, which can realize sealed installation of the pressure monitoring assembly 6 on the valve body 1, and through the elastic properties of the epoxy resin, the vibration generated during valve operation can be absorbed, thereby eliminating vibration interference, improving the measurement accuracy of the pressure monitoring assembly 6, and protecting the pressure sensor 61 and the pressure display piece 62, reducing the failure rate of the pressure monitoring assembly 6. At the same time, without additional steps, the installation of the equipment can be completed only by installing the valve during the production process, reducing potential leakage points and potential installation hazards caused by operation level.

[0063] In some embodiments, the fixed groove includes a plug-in part, a first filling part, a second filling part, the plug-in part is arranged on the side of the fixed groove close to the valve cavity 2 and is plug-in matched with the pressure sensor 61, which can realize the preliminary fixation of the pressure sensor 61 and facilitate the installation of the pressure sensor 61, the first filling part is coaxially connected with the plug-in part and coaxially arranged with the pressure sensor 61, the second filling part is coaxially connected with the first filling part and coaxially arranged with the pressure display piece 62, and the first filling part and the second filling part are provided with a stable layer 63, which can realize the installation of the pressure sensor 61 and the pressure display piece 62 in the fixed groove, realize the inlaid installation of the pressure monitoring assembly 6 on the valve body 1, and avoid the problems of rust and poor sealing caused by external measuring devices.

[0064] In some embodiments, the safety assembly 8 includes a safety groove, a second diaphragm 81, a safety plug 82, and a gas vent 83, the safety groove is arranged on the side wall of the valve body 1 and communicates with the valve cavity 2, the second diaphragm 81 is sealed in the safety groove and can isolate the valve cavity 2 from the external environment, the safety plug 82 is screw-connected with the safety groove, which facilitates the installation and removal of the safety plug 82 and facilitates the adjustment of the pre-warning pressure of the valve by rotating the safety plug 82 to pierce the second diaphragm 81 at different positions, and the gas vent 83 penetrates the safety plug 82, which can pierce the second diaphragm 81 by the safety plug 82 when the internal pressure of the valve is abnormal, discharge the gas in the valve cavity 2 through the gas vent 83, and release the pressure to ensure the safety of the valve.

[0065] Specifically, when the fire extinguishing agent enters the valve cavity 2, the pressure pushes the valve core body 31 to slide upward in the valve cavity 2. The amplitude reduction spring 72 at the top of the valve core assembly 3 is compressed, which plays a buffering role and avoids damage to the valve caused by the rapid movement of the valve core assembly 3. When the fire extinguishing agent stops entering or the pressure decreases, the elastic force of the amplitude reduction spring 72 pushes the valve core body 31 to slide downward, controlling the flow of the fire extinguishing agent. The valve cover assembly 4 plays a sealing and protection role, ensuring the normal work of the valve core assembly 3 in the valve cavity 2.

[0066] In some embodiments, the safety assembly 8 includes a safety groove, a second diaphragm 81, a safety plug 82, and a gas vent 83, the safety groove is arranged on the side wall of the valve body 1 and communicates with the valve cavity 2, the second diaphragm 81 is sealed in the safety groove and can isolate the valve cavity 2 from the external environment, the safety plug 82 is screw-connected with the safety groove, which facilitates the installation and removal of the safety plug 82 and facilitates the adjustment of the pre-warning pressure of the valve by rotating the safety plug 82 to pierce the second diaphragm 81 at different positions, and the gas vent 83 penetrates the safety plug 82, which can pierce the second diaphragm 81 by the safety plug 82 when the internal pressure of the valve is abnormal, discharge the gas in the valve cavity 2 through the gas vent 83, and release the pressure to ensure the safety of the valve.

[0067] Specifically, when the pressure in the valve cavity 2 abnormally rises, the pressure acts on the second diaphragm 81, causing the second diaphragm 81 to suddenly change direction towards the safety plug 82. When the pressure exceeds a certain value, the second diaphragm 81 is pierced by the safety plug 82, and the gas in the valve cavity 2 is released through the safety groove and the gas vent 83, preventing the valve from being damaged due to excessive pressure and ensuring the safety of the valve and the entire gas fire extinguishing system.

[0068] In some embodiments, a blowout prevention assembly 9 is also included, which includes a blowout prevention cover 91 that covers the fire extinguishing agent outlet 12 and is screw-connected with the outer wall of the fire extinguishing agent outlet 12. The blowout prevention cover 91 can block the fire extinguishing agent outlet 12 to prevent accidental spraying of the fire extinguishing agent and protect the valve. The blowout prevention cover 91 is hingedly connected with a chain 92, and the other end of the chain 92 is hingedly connected with a fixing pin 93 that is fixed to the valve body 1. Through the cooperation of the fixing pin 93 and the chain 92, the blowout prevention cover 91 can still be connected with the valve body 1 after being separated from the fire extinguishing agent outlet 12, preventing the blowout prevention cover 91 from being lost.

[0069] The specific working principle is as follows:

[0070] In normal state, the valve core body 31 in the valve core assembly 3 remains relatively stationary in the valve cavity 2. The gasket 32 at the bottom of the valve core body 31 and the first sealing ring 33 tightly cooperate to prevent the fire extinguishing agent from leaking from the bottom of the valve core assembly 3. The second sealing ring 35 is coaxially sleeved on the top of the valve core body 31 and is in sliding and sealing connection with the inner wall of the valve cavity 2, ensuring the overall sealing of the valve cavity 2 and maintaining the stability of the pressure in the fire extinguishing agent bottle to prevent leakage of the fire extinguishing agent. At this time, the cover body 41 of the valve cover assembly 4 is detachably connected with the top of the valve body 1 through the installation groove. The third sealing ring 441 and the sealing washer 442 in the sealing member 44 play a double sealing role, further ensuring the sealing of the connection between the valve body 1 and the valve cover assembly 4, preventing foreign matter from entering the valve cavity 2, and also preventing leakage of the fire extinguishing agent.

[0071] The pressure sensor 61 of the pressure monitoring assembly 6 monitors the pressure in the valve cavity 2 in real time. Its measuring end extends into the valve cavity 2, so it can directly obtain accurate pressure data, reducing the pressure loss that may be caused by external measurement devices. The pressure sensor 61 transmits the pressure signal to the pressure display 62, which is a liquid crystal display screen that visually displays the pressure data, making it convenient for on-site personnel to check. At the same time, the pressure sensor 61, as a high-precision sensor with wireless data transmission, transmits real-time pressure signals to the intelligent alarm system and the Internet of Things linkage system. The stable layer 63 is formed by filling and solidifying epoxy resin, which not only ensures the stable installation of the pressure sensor 61 and the pressure display 62 in the fixing groove, preventing displacement or damage, but also absorbs the vibration energy during valve operation using the elasticity of the epoxy resin, eliminating vibration interference and improving measurement accuracy.

[0072] When the pressure sensor 61 monitors that the pressure in the valve cavity 2 is lower than the preset range, the intelligent alarm system triggers the alarm mechanism to timely inform the relevant personnel. If the fire extinguishing agent bottle is disassembled or sprayed to cause abnormal pressure, the intelligent alarm system will record the abnormal pressure value, and upload the abnormal event and specific time, pressure change data and other information to the cloud platform in real time, so as to trace the responsibility and equipment management.

[0073] When the pressure in the valve cavity 2 is abnormally high, the pressure acts on the second diaphragm 81 of the safety assembly 8, and the second diaphragm 81 suddenly changes to the direction of the safety plug 82. When the pressure exceeds a certain value, the second diaphragm 81 is pierced by the safety plug 82, and the gas in the valve cavity 2 is discharged through the safety groove and the gas vent 83, preventing the valve from being damaged due to excessive pressure and ensuring the safety of the valve and the entire gas fire extinguishing system. In addition, the second diaphragm 81 can also be pierced by rotating the safety plug 82 to adjust its position, realizing the adjustment of the warning pressure of the valve.

[0074] When a fire occurs and the fire extinguishing agent needs to be released, the corresponding driving device (such as an electromagnetic type driving device) on the connecting head 5 is triggered to start, pierce the first diaphragm 43, and discharge the gas between the valve core assembly 3 and the valve cover assembly 4, open the valve, and make the bottom gas pressure of the valve core assembly 3 greater than the top gas pressure of the valve core assembly 3, so that the valve core body 31 slides upward in the valve cavity 2, opens the fire extinguishing agent outlet 12, and the fire extinguishing agent enters the valve cavity 2 from the fire extinguishing agent inlet 11 and flows to the fire extinguishing nozzle from the fire extinguishing agent outlet 12, and performs the fire extinguishing operation. In this process, the drop spring 72 in the drop groove 71 at the top of the valve core assembly 3 is compressed, which plays a buffering role for the rapid movement of the valve core assembly 3, avoiding damage caused by the direct impact of the valve core assembly 3 on the valve cover assembly 4. After the fire extinguishing agent is sprayed, the pressure between the valve core assembly 3 and the fire extinguishing agent inlet 11 is less than the sum of the elastic force of the drop spring 72 and the gravity of the valve core assembly 3, and the valve core assembly 3 is pressed to the limiting step hole of the valve body 1, so that the valve is closed.

[0075] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An intelligent pressure monitoring valve, characterized by: It comprises a valve body (1); A valve cavity (2) is arranged in the valve body (1); A valve core assembly (3) is arranged in the valve cavity (2) slidably; A valve cover assembly (4) is arranged on the top of the valve body (1) and covers the top of the valve cavity (2); A connector (5) is arranged on the top of the valve cover assembly (4); A pressure monitoring assembly (6) is embedded on the valve body (1) and can monitor the pressure in the valve cavity (2); The valve body (1) comprises a fire extinguishing agent inlet (11) arranged at the bottom of the valve body (1) and communicating with the fire extinguishing agent bottle and the valve cavity (2); A fire extinguishing agent outlet (12) is arranged on the side of the valve body (1) and communicates with the fire nozzle and the valve cavity (2), and the pressure monitoring assembly (6) is arranged between the fire extinguishing agent inlet (11) and the fire extinguishing agent outlet (12); The pressure monitoring assembly (6) comprises a fixing groove penetrating through one side wall of the valve body (1) and arranged between the fire extinguishing agent inlet (11) and the fire extinguishing agent outlet (12); A pressure sensor (61) is arranged in the fixing groove, and the measuring end of the pressure sensor (61) extends into the valve cavity (2); A pressure display piece (62) is connected with the pressure sensor (61) and arranged on the side of the fixing groove away from the valve cavity (2), and the side surface of the pressure display piece (62) away from the pressure sensor (61) is flush with the end surface of the fixing groove; The pressure monitoring assembly (6) further comprises a stable layer (63) arranged between the inner wall of the fixing groove and the pressure sensor (61) and the pressure display piece (62).

2. The intelligent pressure monitoring valve of claim 1, wherein: The valve core assembly (3) comprises a valve core body (31) which is slidably arranged in the valve cavity (2); A gland (32) is arranged at the bottom of the valve core body (31); A first sealing ring (33) is arranged between the valve core body (31) and the gland (32); A communication hole (34) penetrates through the valve core body (31) and the gland (32); A second sealing ring (35) is coaxially arranged on the top of the valve core body (31) and is in sliding and sealing connection with the inner wall of the valve cavity (2).

3. The intelligent pressure monitoring valve of claim 1, wherein: The valve cover assembly (4) comprises a cover body (41) which is detachably connected with the connector (5) on the top; An installation groove is arranged on the bottom of the cover body (41) and is detachably connected with the top of the valve body (1); An exhaust hole (42) penetrates through the cover body (41) and communicates with the valve cavity (2); A first diaphragm (43) is arranged on the top of the exhaust hole (42); A sealing member (44) is arranged between the valve body (1) and the mounting groove.

4. The intelligent pressure monitoring valve of claim 3, wherein: The sealing member (44) comprises a first ring groove arranged on the inner bottom wall of the mounting groove; A third sealing ring (441) is arranged in the first ring groove; A second ring groove is arranged at the junction of the bottom wall and the side wall of the mounting groove; A third ring groove is arranged on the outer side wall of the bottom of the valve body (1); A sealing washer (442) is arranged between the second ring groove and the third ring groove.

5. The intelligent pressure monitoring valve of claim 1, wherein: The fixing groove comprises a plug-in part arranged on the side of the fixing groove close to the valve cavity (2) and plug-in matched with the pressure sensor (61); A first filling part is coaxially connected with the plug-in part and coaxially arranged with the pressure sensor (61); A second filling part is coaxially connected with the first filling part and coaxially arranged with the pressure display member (62), and the first filling part and the second filling part are arranged with the stabilizing layer (63) therebetween.

6. The intelligent pressure monitoring valve of claim 3, wherein: Further comprising a drop amplitude assembly (7) arranged between the valve core assembly (3) and the valve cover assembly (4), the drop amplitude assembly (7) comprises a drop amplitude groove (71) arranged on the top of the valve core assembly (3); A drop amplitude spring (72) is fixedly arranged at the bottom of the drop amplitude groove (71) and at the top of the valve cover assembly (4).

7. The intelligent pressure monitoring valve of claim 1, wherein: Further comprising a safety assembly (8) comprising a safety groove arranged on the side wall of the valve body (1) and communicated with the valve cavity (2); A second diaphragm (81) is arranged in the safety groove; A safety plug (82) is screw-connected with the safety groove; An air vent (83) penetrates the safety plug (82).

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