Unlock instant, AI-driven research and patent intelligence for your innovation.

Technological device and method for preventing gas-phase blasting of combustible liquid storage tank

A technology of process equipment and process method, which is applied in the directions of packaging, transportation, packaging, containers, etc., can solve the problems of large nitrogen consumption, achieve the effects of reducing the amount of use, good technical effects, and preventing gas phase explosions

Inactive Publication Date: 2015-08-19
CHINA PETROLEUM & CHEM CORP +3
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the technical problems to be solved by the present invention is the problem of large nitrogen consumption in the prior art, and a new process device for preventing gas phase explosion of flammable liquid storage tanks is provided

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Technological device and method for preventing gas-phase blasting of combustible liquid storage tank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A process device and method for preventing gas-phase explosion of a flammable liquid storage tank, which is used for oil storage tanks, and the oil products include gasoline, kerosene, diesel oil, dirty oil, naphtha, solvent oil, crude oil, etc., and the device Including storage tank (1), breathing valve (2), oxygen content detector (4), supplementary nitrogen pipeline (5), regulating valve (3), one end of breathing valve (2) is connected with the gas phase space of storage tank (1) , the breather valve (2) is provided with an air inlet (6) and an exhaust gas outlet (7), and is characterized in that the oxygen content detector (4) is arranged on the gas phase space of the storage tank (1), and the supplementary nitrogen pipeline (5) is connected with the The gas phase space of the storage tank (1) is connected, the regulating valve (3) is arranged on the supplementary nitrogen pipeline (5), and the oxygen content detector (4) is connected with the regulating valve (3) th...

Embodiment 2

[0021] According to the conditions described in Example 1, only the device is applied to the alkane storage tank, and the alkane includes pentane, hexane, cyclohexane, pentane oil and the like. When the gaseous oxygen content in the tank is higher than 9.6%, the valve is automatically opened to feed nitrogen until the gaseous oxygen volume content in the tank is lower than 9.6%; when the gaseous oxygen volume content is lower than 9.6%, the valve is automatically closed to stop feeding nitrogen. Through the above control loop, it is ensured that the oxygen volume content in the gas phase of the storage tank is lower than 9.6%. In the case of saving nitrogen, the gas phase of the alkane storage tank is prevented from detonating.

[0022] By adopting the device of the invention, compared with completely using nitrogen to protect storage tanks, at least 45.8% of nitrogen can be saved, and the safety effect achieved is completely consistent.

Embodiment 3

[0024] According to the conditions described in Example 1, only the device is applied to an organic acid storage tank, and the organic acid includes formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, isooctanoic acid and the like. When the gaseous oxygen content in the tank is higher than 5.1%, the valve is automatically opened to feed nitrogen until the gaseous oxygen volume content in the tank is lower than 5.1%; when the gaseous oxygen volume content is lower than 5.1%, the valve is automatically closed to stop feeding nitrogen. Through the above control loop, it is ensured that the oxygen volume content in the gas phase of the storage tank is lower than 5.1%. In the case of saving nitrogen, the organic acid storage tank is prevented from detonating in the gas phase.

[0025] Adopting the device of the present invention can save at least 24.3% of nitrogen compared with completely using nitrogen to protect storage tanks, and achieves completely consiste...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a technological device and a method for preventing gas-phase blasting of a combustible liquid storage tank, mainly solving the problem of high nitrogen consumption in the prior art. The technological device comprises the storage tank (1), a breather valve (2), an oxygen content detector (4), a nitrogen supplement pipeline (5) and a regulating valve (3). One end of the breather valve (2) is connected with a gas-phase space of the storage tank (1). The breather valve (2) is provided with an air inlet (6) and a tail gas outlet (7). The oxygen content detector (4) is arranged on the gas-phase space of the storage tank (1). The nitrogen supplement pipeline (5) is connected with the gas-phase space of the storage tank (1). The regulating valve (3) is arranged on the nitrogen supplement pipeline (5). The oxygen content detector (4) is connected with the regulating valve (3) through a data line. The technological device and the method solve the problem well and can be applied to gas-phase blasting prevention of the combustible liquid storage tank.

Description

technical field [0001] The invention relates to a process device and method for preventing gas phase explosion of a flammable liquid storage tank. Background technique [0002] For flammable liquids, such as oil, alkanes, organic oxides, etc., the gas phase of flammable liquid storage tanks is often in an explosive atmosphere. In order to prevent the gas phase explosion of flammable liquid storage tanks, the most conventional and effective way is to use gas phase nitrogen protection. The tank breathing valve continuously replenishes nitrogen. With the operation of the storage tank, nitrogen is continuously added and exhaled to keep the gas phase in the tank in an oxygen-free state. At present, the commonly used oil storage tanks have a capacity of 5,000-10,000 cubic meters. Therefore, this method requires a large amount of nitrogen, and the operating cost is relatively high for enterprises that are not rich in nitrogen. Through research, 1 cubic meter in the refinery The co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B65D90/22B65D90/48
CPCB65D90/22B65D90/48
Inventor 石宁王林王振刚孙峰牟善军
Owner CHINA PETROLEUM & CHEM CORP