Integrated safe interlock device used for lock-ring type quick open blind plate structure
A technology of safety interlocking device and interlocking device, which is applied in the direction of gas/liquid distribution and storage, pressure vessel, fixed-capacity gas storage tank, etc. It can solve the problems that cannot meet the requirements of domestic regulations, achieve compact structure, avoid injury, The effect of ensuring safety
Active Publication Date: 2015-09-16
BEIJING UNIV OF CHEM TECH
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Problems solved by technology
Due to the differences in domestic and foreign regulations, the current imported safety interlock devices cannot meet the requirements of domestic regulations.
Method used
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[0031] The following describes the working process of the device in conjunction with the above structure.
[0032] The safety interlock device of the present invention is used in the lock ring type quick opening blind plate structure.
[0033] When there is medium pressure in the pressure vessel or pipeline, the pressure reaches the cavity of the upper casing of the alarm screw through the air inlet, and pushes the lock core shaft to move downward, and the lock core shaft drives the upper and lower glands and the rubber diaphragm at the same time Move down, at this time, the rubber diaphragm bears against the lower shell of the alarm screw, the spring is compressed, and the stroke limit rod also moves the same distance with the lock core shaft, close to the lock ring insert, reminding the operator that there is pressure inside and cannot operate.
[0034] After the pressure vessel or pipeline is depressurized, there is still residual pressure. First, use the safety pressure r...
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The invention discloses an integrated safe interlock device used for a lock-ring type quick open blind plate structure. An alarm threaded rod upper shell and an alarm threaded rod lower shell are fixedly connected through a thread, and the alarm threaded rod upper shell and the alarm threaded rod lower shell cooperate to form an enclosure space; an upper pressing cover, a rubber membrane and a lower pressing cover are arranged on a lock cylinder shaft in sequence in a sleeving mode, and the lock cylinder shaft is screwed and sealed through a thread. An O-shaped rubber sealing ring is installed on the surface of the middle inside the alarm threaded rod lower shell. Steps are arranged at the end of an alarm threaded rod rotating handle, and the alarm threaded rod upper shell is fixedly connected with the steps at the end of the alarm threaded rod rotating handle through two groups of symmetric pins; a groove is formed in the middle of the alarm threaded rod rotating handle in the axial direction, and a stroke limiting rod moves along the groove; a handle pin is installed on the alarm threaded rod rotating handle in the radial direction, and the handle pin limits the axial displacement of a lock ring embedded block. According to the device, it is avoided that under the condition that residual pressure exists, the alarm threaded rod and the lock ring embedded block are taken out mistakenly, and an operator is prevented from injury and the environment is prevented from pollution by medium.
Description
technical field [0001] The invention is suitable for a lock-ring type quick-opening blind plate structure on a pressure vessel, specifically a novel integrated safety interlock device, belonging to the technical field of quick-opening blind plate pressure vessels. Background technique [0002] The quick-opening blind plate structure is a mechanical device installed at the end of a pressure vessel or pressure pipeline to realize rapid opening and closing, and is widely used in the oil and gas industry. Compared with the bolt flange structure, the opening and closing door cover operation of the quick opening blind plate structure is faster. The quick-opening blind plate structure is an important part of long-distance pipeline filters and receiving and receiving spherical tube devices, and usually transports flammable and explosive media. In actual operation, there are often potential safety hazards. For example, due to reasons such as failure of the pressure gauge, the operat...
Claims
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IPC IPC(8): F16J13/24
CPCF16J13/24
Inventor 陈平周淑敏王辰周云双李琪琪
Owner BEIJING UNIV OF CHEM TECH