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Safety breathing valve for oil storage tank

A technology for petroleum storage tanks and breathing valves, applied in safety valves, balance valves, valve devices, etc., can solve problems such as easy failure, jamming and low temperature in winter

Active Publication Date: 2017-09-08
辽宁圣莱特石化设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So as to solve the above-mentioned problems of existing breathing valves, the present invention can effectively solve the problems of jamming and easy failure at low temperature in winter

Method used

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  • Safety breathing valve for oil storage tank
  • Safety breathing valve for oil storage tank

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Embodiment Construction

[0019] The invention discloses a safety breathing valve of an oil storage tank, which can well solve the safety problem caused by the failure of the breathing valve.

[0020] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention.

[0021] see figure 1 As shown, the breathing valve includes a breathing system 1, a safety protection system 10, and a differential pressure alarm system; the breathing system 1 includes a protective cover 2 and a breathing valve cavity 3, and the protective cover 2 is fixed on the breathing valve cavity 3 On the exhalation valve disc 4, a negative pressure chamber 5, a ventilation chamber 6 and a positive pressure chamber 7 are arranged inside the breathing valve cavity 3, and a communication channel is set between the positive pressure chamber 7 and the negative pressure chamber 5, and the positive pressure A flame arrester 8 is set bet...

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Abstract

The invention discloses a safety breathing valve for an oil storage tank and relates to a storage tank device. The breathing valve comprises a breathing system (1), a safety protection system (10) and a pressure difference alarming system. The breathing system (1) comprises a protection cover (2) and a breathing valve cavity (3). The safety protection system (10) comprises a valve bottom flange (11), a ventilation pipe (12), a shell (13), a shell bottom plate (14), a liquid isolation cylinder (15), a connecting plate (16), a connecting block (17), a supporting pillar (18), a liquid accumulation chamber (19) and a protection cover (20). The pressure difference alarming system comprises a liquid level detection device (26), a signal transmission device and an alarming device. Due to the fact that a cavity internal pressure difference real-time measuring and alarming device is additionally arranged and with the combination of a storage tank remote monitoring system, real-time monitoring, fault remote pre-warning and alarming of the running pressure difference of the storage tank can be achieved, and all-weather real-time monitoring running on the running state of the storage tank is achieved.

Description

technical field [0001] The invention belongs to the technical field of storage tank equipment, and in particular relates to a safety breathing valve for petroleum storage tanks. Background technique [0002] In the field of petroleum and chemical industry, most of the medium stored in the vertical vault tank is refined oil or light chemical products, which are highly volatile. In order to reduce the loss of medium volatilization and meet environmental protection requirements, it is necessary to The storage tank forms a closed space, and in the working state, the positive and negative pressure of the storage tank must not exceed the critical pressure of the positive and negative pressure allowed by the national design standards for petrochemical storage tanks, so it is generally added to the vertical vault tank. Install a breathing valve, but the breathing valves currently on the market have the following insurmountable problems: 1. The breathing valves are all mechanical str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K37/00F16K17/164
CPCF16K17/164F16K37/0083
Inventor 崔学文李维军袁玮骏
Owner 辽宁圣莱特石化设备有限公司