Emergency shut-off quarter-stroke valve device based on flame detection and its application method
A flame detection, valve device technology, applied in valve device, valve operation/release device, valve details, etc., can solve problems such as failure
Active Publication Date: 2022-02-25
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
However, there are certain risks in the passive emergency cut-off device that only relies on the melting of the fusible plug at present. Only when the flame melts the fusible plug, the emergency cut-off valve will operate, and at this time, the sealing parts in the actuator are also under fire. The test, facing the risk of failure
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[0029] The present invention proposes an emergency shut-off quarter-turn valve device based on flame detection and its usage method. In order to make the advantages and technical solutions of the present invention clearer and clearer, the present invention will be described in detail below in conjunction with specific embodiments.
[0030] combine figure 1 and figure 2 As shown, the active emergency cut-off quarter-stroke valve device based on flame detection of the present invention includes a valve plate base 1, a quarter-stroke valve plate 2, a valve stem 3, an emergency cut-off actuator 4, and a flame detection module 5, wherein the emergency cut-off angular stroke The actuator 4 includes a solenoid valve 7, a hydraulic oil pipeline A8, a fuel tank 9, a normally open stop valve 10, a hydraulic oil pipeline B11, a hydraulic cylinder 12, a piston 13, a sealing ring 14, a hydraulic oil pipeline C15, a worm 16, a worm gear 17, and a spring Cylinder 18, spring 19. The worm g...
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The invention discloses an emergency cut-off quarter-stroke valve device and a use method based on flame detection, belonging to the technical field of oil and gas storage and transportation. It includes a valve stem, a quarter-turn valve plate, a valve plate base, an emergency cut-off actuator and a flame detection module. Located in the hydraulic cylinder, the hydraulic cylinder is divided into two parts, the first hydraulic cylinder and the second hydraulic cylinder, the solenoid valve and the flame detection module are connected through signal control lines; the right side of the piston is connected to the worm, and the worm's The other end is connected on the spring in the spring cylinder, the worm gear is located near the worm, the worm gear is connected with the valve stem, and the worm gear and the worm are meshed with each other. The invention uses the flame detection module to actively detect the flame signal, and when the fire has not spread to the tank wall, the emergency cutoff between the storage tank and the oil inlet and outlet pipelines is realized by itself.
Description
technical field [0001] The invention belongs to the technical field of oil and gas storage and transportation, and in particular relates to an active emergency cut-off angular stroke valve device based on flame detection and a use method thereof. Background technique [0002] The past fire and explosion accidents of petrochemical storage tanks showed that the failure to cut off the source of materials in the first time caused the accident to expand, so oil storage tanks need to be equipped with emergency cut-off devices. CN107366767A discloses a fast-response fusible hydraulic relief valve, which uses a fusible retainer to maintain the balance of the frame such as the pole and lever. When the fusible retainer is melted at high temperature, the frame becomes unstable and the elastic valve stem pops up, thereby Open the cartridge valve. However, there are certain risks in the passive emergency cut-off device that only relies on the melting of the fusible plug at present. Only...
Claims
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IPC IPC(8): F16K31/122F16K31/02F16K31/53
CPCF16K31/122F16K31/02F16K31/53
Inventor 管孝瑞陶彬张玉平刘全桢马开良蒲鹤
Owner CHINA PETROLEUM & CHEM CORP