Oil storage tank top self-sealing or double-sealing combination system

A combined system and oil storage tank technology, which is applied in the field of oil storage tanks and their air sealing devices, can solve problems such as air pollution, resource waste, and exhaust emissions, and achieve the effects of safety assurance, reduced air sealing costs, and low operating costs

Pending Publication Date: 2019-09-17
JIANGSU KEWEI ENVIRONMENTAL PROTECTION TECHCO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is still a small amount of exhaust gas discharged into the air through the breathing valve, causing a certain degree of air pollution and waste of resources

Method used

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  • Oil storage tank top self-sealing or double-sealing combination system

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Embodiment Construction

[0028] Such as figure 1 The self-sealing or double-sealing combined system on the top of the oil storage tank shown is used for gas sealing of the oil storage tank for storing oil products. The interior of the oil storage tank has a liquid space and a gas space on the top of the tank. There is a one-way valve; after the one-way valve, a compressor and a compression tank are connected, and the upper part of the compression tank has an air outlet; between the compressor and the compression tank, there is a cooling device for cooling the fluid in the pipeline; the compression tank cannot compress and condense The low boiling point gas is discharged from the gas outlet, enters the gas expansion device installed in the subsequent pipeline, and then flows into the tank top gas space of the oil storage tank through the valve V1, and the low boiling point gas becomes the filling gas of the oil storage tank.

[0029] A buffer tank may be connected between the one-way valve and the comp...

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Abstract

The invention discloses an oil storage tank top self-sealing or double-sealing combination system. A tank top gas space of an oil storage tank is connected with a one-way valve; a compressor and a compression tank are connected behind the one-way valve, the upper part of the compression tank is provided with an air outlet, the lower part is provided with a condensate outlet, and a cooling device is arranged between the compressor and the compression tank; most high-boiling point gas in the compression tank is compressed and condensed into liquid to flow out from the condensate outlet; and low-boiling point gas is discharged from the air outlet, enters a gas expansion device arranged in a subsequent pipeline and flows into the tank top gas space of the oil storage tank to become potting gas of the oil storage tank. The oil storage tank top self-sealing or double-sealing combination system is low in gas sealing cost, discharged low-boiling point VOC is reused in the system, and atmospheric pollution is reduced; and heat and cooling capacity which are generated by the system are reused in the system, and energy saving and cost reducing are achieved.

Description

technical field [0001] The invention relates to an oil storage tank and an air sealing device thereof. Background technique [0002] In the process of petrochemical production, there are a large number of liquid production raw materials, liquid semi-finished products, and finished materials. During storage, liquid materials use storage tanks, and the storage tanks are equipped with devices that communicate with the atmosphere. According to different materials and safety characteristics, this type of device is generally equipped with a pipeline directly connected to the atmosphere, or equipped with a breathing valve. [0003] Storage tank breathing valves are generally installed with one or more breathing valves in the form of single-suction, single-exhalation valves (separate breathing valves), or single-channel breathing valves (one channel, connected to the atmosphere), or dual-channel breathing valves (one valve , two channels, the inhalation channel and the exhalation c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D88/74B65D90/54B65D88/48
CPCB65D88/74B65D90/54B65D88/48
Inventor 顾建
Owner JIANGSU KEWEI ENVIRONMENTAL PROTECTION TECHCO
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