Switch valve for fire prevention and control
A switch valve, prevention and control technology, applied in the field of control, can solve the problems of inconvenient switch valve fire prevention and control, and achieve the effect of improving the reliability and safety of use
Pending Publication Date: 2020-06-19
CHONGQING CHUANYI AUTOMATION
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- Description
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Problems solved by technology
[0003] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a switch valve for fire prevention and control, which is used to solve the problem that the switch valve in the prior art is not convenient for fire prevention and control
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[0031] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.
[0032] see Figure 1 to Figure 2 . It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arb...
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The invention provides a switch valve for fire prevention and control. The switch valve for fire prevention and control comprises a shell and a valve element mechanism; the shell comprises an inlet, an outlet, and a fusible unit; and the valve element mechanism comprises a valve element unit and a damping unit, wherein one end of the damping unit is connected with the shell, the other end of the damping unit is connected with the valve element unit, one end of the valve element unit is connected with the fusible unit, and the other end of the valve element unit is matched with the inlet and the outlet. According to the switch valve for fire prevention and control, when a fire disaster occurs, the physical state of the fusible unit changes when the fusible unit is heated, then the valve element unit has the trend of moving towards the fusible unit, and meanwhile the damping unit extends to drive the valve element mechanism to move in the direction close to the fusible unit, then the inlet communicates with the outlet, so that opening control over the switch valve is achieved in the heating or fire disaster state, the situation that the valve cannot be opened due to power failure, poor reliability and the like is avoided, and use reliability and safety are improved.
Description
technical field [0001] The invention relates to the technical field of control, in particular to an on-off valve for fire prevention and control. Background technique [0002] In industrial sites in the fields of oil and gas pipelines, chemical industry, refining, oil depots, tank farms, docks, metallurgy and other fields, many internal pipeline valves transport flammable gases and liquids. When an accidental fire occurs on site, it is necessary to change the valve opening or closing in time Closed state, and then control the outward non-diffusion of flammable medium, is a key measure to reduce personal and property losses on site. Generally, after a fire occurs, the valve actuator will often lose the external power supply, resulting in loss of function and safety accidents. Contents of the invention [0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an on-off valve for fire prevention and control, whi...
Claims
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Login to View More IPC IPC(8): F16K17/38F16K31/64
CPCF16K17/383F16K31/002
Inventor 李巧
Owner CHONGQING CHUANYI AUTOMATION