Electromagnetic drive type selector valve for gas fire extinguishing system piping

Abstract

The application provides an electromagnetic drive type selection valve for a gas fire extinguishing system pipeline, comprising a selection valve body, a hexagonal end cover connected to one end of the selection valve body through screw connection, a round end cover connected to the other end of the selection valve body through a hexagonal bolt, a push rod assembly and an integral piston arranged in the selection valve body, the push rod assembly comprising a sealing gasket and a push rod body, the sealing gasket being attached to the sealing surface of the selection valve body under the action of an integral spring to close the valve, and a starting assembly arranged on the selection valve body, the starting assembly comprising a starting top rod configured to be connected to an electromagnetic drive device and a valve core starting core attached to a valve core starting sealing seat under the action of a valve core spring to close the starting gas flow. The application solves the design of the selection valve in the pipeline area of the current gas fire extinguishing system, and upgrades the starting mode of the selection valve in the automatic control state of the gas fire extinguishing system from the gas pressure gas path starting mode to the electromagnetic drive starting mode.

Description

Technical Field

[0001] This utility model relates to the field of pipeline valve technology, specifically to a selector valve for gas fire extinguishing system pipelines, and more specifically to an electromagnetically driven selector valve for gas fire extinguishing system pipelines. Background Technology

[0002] In industrial production and safety protection, especially in gas extinguishing systems, it is often necessary to precisely control the flow of gas in pipelines using valves. These valves typically need to reliably block the gas passage under normal conditions and open quickly and reliably when needed, allowing the extinguishing gas to flow smoothly into the designated gas-protected area.

[0003] Existing gas selector valves mostly employ pneumatic actuation. That is, the starting gas opens the valve's actuation component via a control line, ultimately opening or closing the main gas flow channel. This structure has some inherent drawbacks: it requires a relatively large volume of high-pressure starting gas, connects to the selector valve via a long starting pipeline, has numerous actuation components, and involves a large number of starting pipelines, affecting the system's reliability and aesthetics. Therefore, we propose an improvement: an electromagnetically driven selector valve for gas extinguishing system piping. Utility Model Content

[0004] The purpose of this invention is to solve the design problem of the selector valve in the pipeline area of ​​the current gas extinguishing system, and to upgrade the selector valve in the automatic control state of the gas extinguishing system from the gas pressure gas path start-up method to the electromagnetic drive start-up method.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: An electromagnetically driven selector valve for gas extinguishing system pipelines is provided to improve the above-mentioned problems.

[0006] The application is as follows: An electromagnetically driven selector valve for gas extinguishing system pipelines includes a selector valve body. One end of the selector valve body is connected to a hexagonal end cap via a thread, and the other end is connected to a round end cap via a hexagonal bolt. Inside the selector valve body, there is a push rod assembly and an integral piston. The push rod assembly includes a sealing gasket and a push rod body. The sealing gasket, under the action of an integral spring, fits against the sealing surface of the selector valve body to close the valve. The selector valve body also has an actuation assembly, which includes an actuation push rod and a valve core actuation core. The actuation push rod is configured to connect to an electromagnetic drive device. The valve core actuation core, under the action of a valve core spring, fits against a valve core actuation sealing seat to close the starting airflow. When the electromagnetic drive device is activated, the actuation push rod pushes the valve core actuation core to move, causing the valve core actuation core to separate from the valve core actuation sealing seat. The starting airflow pushes the integral piston to move, and the integral piston pushes the push rod assembly to move, causing the sealing gasket to disengage from the sealing surface of the selector valve body, thereby opening the valve.

[0007] As a preferred technical solution of this application, the push rod assembly also includes a valve disc, a clamping nut, and a push rod piston. The valve disc is fixed to the sealing gasket by the clamping nut, and the push rod body is connected to the push rod piston.

[0008] As a preferred technical solution of this application, the starting assembly further includes a valve core starting sleeve, a valve core spring, a valve core starting sealing seat, and a starting top cover. The valve core starting sleeve accommodates the valve core spring and the valve core starting core. The starting top cover is connected to the selector valve body, and the starting rod passes through the starting top cover.

[0009] As a preferred technical solution of this application, the integral piston is disposed inside the selector valve body and contacts the push rod assembly. When the start-up airflow pushes the integral piston, the integral piston directly pushes the push rod assembly to move.

[0010] As a preferred technical solution of this application, the valve body is configured to be connected to the pipeline via a flange or thread.

[0011] As a preferred technical solution of this application, the round end cap and the electromagnetic drive device are connected by threads.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By combining the electromagnetic drive structure with the selector valve body, the system structure is effectively simplified, eliminating the traditional starting pipeline. The selector valve is directly started by the start signal from the gas control panel, improving installation convenience and system aesthetics. Direct electromagnetic drive ensures rapid, reliable, and time-controllable start-up, significantly improving valve action accuracy and response efficiency. Simultaneously, the valve has flexible start-up timing configuration capabilities, allowing it to be set to start earlier or simultaneously with the storage cylinder, enhancing system control adaptability and fire extinguishing efficiency. Furthermore, the valve achieves reliable sealing through springs and sealing structures in both the initial state and non-operational phases, ensuring system safety. The overall structure is compact and easy to maintain, possessing high practicality and promotional value. Attached Figure Description

[0013] Figure 1 This application provides an overall structural schematic diagram of an electromagnetically driven selector valve for a gas extinguishing system pipeline. Figure 2 A side sectional view of an electromagnetically driven selector valve for a gas extinguishing system pipeline provided in this application; Figure 3 This application provides an electromagnetically driven selector valve for gas extinguishing system pipelines. Figure 2 Front view; Figure 4 The electromagnetic drive type selector valve for gas extinguishing system pipelines provided in this application has an airflow direction diagram. Figure 5 An enlarged cross-sectional view of the push rod assembly of an electromagnetically driven selector valve for a gas extinguishing system pipeline provided in this application; Figure 6 Enlarged cross-sectional view of the starting assembly of an electromagnetically driven selector valve for a gas extinguishing system pipeline provided in this application; Figure 7 An enlarged cross-sectional view of the round end cap of an electromagnetically driven selector valve for a gas extinguishing system pipeline provided in this application.

[0014] The image shows: 1. Hexagonal end cap; 2. Selector valve body; 3. Push rod assembly; 4. Round end cap; 5. Integral piston; 6. Actuating assembly; 7. Integral spring; 8. Valve disc; 9. Sealing gasket; 10. Compression nut; 11. Push rod body; 12. Push rod piston; 13. Valve core actuating sleeve; 14. Valve core spring; 15. Valve core actuating core; 16. Valve core actuating sealing seat; 17. Actuating push rod; 18. Actuating top cover. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0016] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely illustrates some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model. It should be noted that, unless otherwise specified, the embodiments, features, and technical solutions in the embodiments of this utility model can be combined with each other.

[0017] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0018] like Figures 1-7 As shown, this embodiment proposes an electromagnetically driven selector valve for gas extinguishing system pipelines, including a selector valve body 2. One end of the selector valve body 2 is connected to a hexagonal end cap 1 via a thread, and the other end is connected to a round end cap 4 via a hexagonal bolt. Inside the selector valve body 2, there is a push rod assembly 3 and an integral piston 5. The push rod assembly 3 includes a sealing gasket 9 and a push rod body 11. The sealing gasket 9, under the action of an integral spring 7, fits against the sealing surface of the selector valve body 2 to close the valve. An actuation assembly 6 is also provided on the selector valve body 2. The actuation assembly 6 includes... The valve includes an actuating push rod 17 and a valve core actuating core 15. The actuating push rod 17 is configured to be connected to the electromagnetic drive device. The valve core actuating core 15, under the action of the valve core spring 14, is in contact with the valve core actuating sealing seat 16 to close the starting airflow. When the electromagnetic drive device is activated, the actuating push rod 17 pushes the valve core actuating core 15 to move, causing the valve core actuating core 15 to separate from the valve core actuating sealing seat 16. The starting airflow pushes the integral piston 5 to move, and the integral piston 5 pushes the push rod assembly 3 to move, causing the sealing gasket 9 to disengage from the sealing surface of the selector valve body 2, thereby opening the valve.

[0019] The push rod assembly 3 also includes a valve disc 8, a clamping nut 10, and a push rod piston 12. The valve disc 8 is fixed to the sealing gasket 9 by the clamping nut 10, and the push rod body 11 is connected to the push rod piston 12.

[0020] The starting assembly 6 also includes a valve core starting sleeve 13, a valve core spring 14, a valve core starting sealing seat 16, and a starting top cover 18. The valve core starting sleeve 13 accommodates the valve core spring 14 and the valve core starting core 15. The starting top cover 18 is connected to the round end cover 4, and the starting rod 17 passes through the starting top cover 18.

[0021] The integral piston 5 is located inside the selector valve body 2 and is in contact with the push rod assembly 3. When the start-up airflow pushes the integral piston 5, the integral piston 5 directly pushes the push rod assembly 3 to move.

[0022] Select valve body 2 to be configured to connect to the pipeline via flange or thread.

[0023] The round end cap 4 is connected to the electromagnetic drive device via a thread.

[0024] From the diagram, we can see that the airflow direction when the valve is activated is as follows: Figure 4 As shown by the arrow group above; the airflow direction after the valve is activated is as follows. Figure 4 As shown by the arrow group in the lower middle.

[0025] When this application is used: In the initial state of the valve, when there is no external action, the push rod assembly 3, under the action of the overall spring 7, has its sealing gasket 9 in contact with the sealing surface of the selector valve body 2, and the valve closes in the direction of airflow; when there is no external action, the starting assembly 6, under the action of the valve core spring 14, has its valve core starting core 15 in contact with the valve core starting sealing seat 16, and the valve closes in the direction of starting airflow. When the valve is started, after the electromagnetic drive device connected to the round end cover 4 is activated, the starting rod 17 moves downward, pushing the valve core starting core 15 downward. The seal between the valve core starting core 15 and the valve core starting sealing seat 16 is broken. At this time, the starting airflow will flow in the direction of the starting airflow, pushing the overall piston 5 downward, pushing the push rod assembly 3 downward, and the seal between the sealing gasket 9 and the sealing surface of the selector valve body 2 is broken. The valve is started, and the airflow flows in the direction of the green arrow. The electromagnetically driven selector valve of this application is installed in a pipeline and is used to open the pipeline and control the flow of gas through the pipeline; it can block the pipeline and open it when needed to allow the pipeline to pass through, so that the gas can flow through the valve and enter the protected area. The starting pipeline connecting the selector valve has been eliminated; the selector valve is directly activated by the start signal from the gas control panel. This results in a reliable starting method, controllable start time, and an aesthetically pleasing system design. Furthermore, the selector valve can be set to start earlier than the storage cylinder, or it can be set to start simultaneously with the storage cylinder, leading to higher selection performance and better efficiency.

[0026] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. An electromagnetically driven selector valve for gas extinguishing system pipelines, comprising a selector valve body (2), characterized in that, One end of the selector valve body (2) is connected to a hexagonal end cap (1) by a thread, and the other end is connected to a round end cap (4) by a hexagonal bolt. The selector valve body (2) is provided with a push rod assembly (3) and an integral piston (5). The push rod assembly (3) includes a sealing gasket (9) and a push rod body (11). The sealing gasket (9) is in contact with the sealing surface of the selector valve body (2) under the action of the integral spring (7) to close the valve. The selector valve body (2) is also provided with an actuation assembly (6). The actuation assembly (6) includes an actuation push rod (17) and a valve core actuation core (11). 5) The starting push rod (17) is configured to be connected to the electromagnetic drive device. The valve core starting core (15) is in contact with the valve core starting sealing seat (16) under the action of the valve core spring (14) to close the starting airflow. When the electromagnetic drive device is activated, the starting push rod (17) pushes the valve core starting core (15) to move, so that the valve core starting core (15) is separated from the valve core starting sealing seat (16). The starting airflow pushes the overall piston (5) to move. The overall piston (5) pushes the push rod assembly (3) to move, so that the sealing gasket (9) is separated from the sealing surface of the selector valve body (2), thereby opening the valve.

2. The electromagnetically driven selector valve for a gas extinguishing system pipeline according to claim 1, characterized in that, The push rod assembly (3) also includes a valve disc (8), a clamping nut (10) and a push rod piston (12). The valve disc (8) fixes the sealing gasket (9) through the clamping nut (10), and the push rod body (11) is connected to the push rod piston (12).

3. The electromagnetically driven selector valve for a gas extinguishing system pipeline according to claim 1, characterized in that, The starting assembly (6) further includes a valve core starting sleeve (13), a valve core spring (14), a valve core starting sealing seat (16), and a starting top cover (18). The valve core starting sleeve (13) accommodates the valve core spring (14) and the valve core starting core (15). The starting top cover (18) is connected to the round end cover (4), and the starting rod (17) passes through the starting top cover (18).

4. The electromagnetically driven selector valve for a gas extinguishing system pipeline according to claim 1, characterized in that, The integral piston (5) is located inside the selector valve body (2) and is in contact with the push rod assembly (3). When the start-up airflow pushes the integral piston (5), the integral piston (5) directly pushes the push rod assembly (3) to move.

5. The electromagnetically driven selector valve for a gas extinguishing system pipeline according to claim 1, characterized in that, The selector valve body (2) is connected to the pipeline via a flange or thread.

6. The electromagnetically driven selector valve for a gas extinguishing system pipeline according to claim 1, characterized in that, The round end cap (4) is connected to the electromagnetic drive device by a thread.

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