Automatic constant pressure system for ultralow-temperature liquid storage tank
A technology of ultra-low temperature and pressure, applied in non-pressure vessels, gas/liquid distribution and storage, equipment discharged from non-pressure vessels, etc., can solve problems such as pressure imbalance, large gas pressure fluctuations, and potential safety hazards, and achieve structural The effect of novel design and stable pressure
Pending Publication Date: 2022-03-18
NANTONG HENGXINDA REFRIGERATION EQUIP
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Problems solved by technology
[0002] The pressure used by the existing gas relies on the system composed of the vaporizer of the cryogenic liquid storage tank and the mechanical spring pressure reducing valve, which causes the gas pressure to fluctuate greatly, the pressure is not balanced, and there are certain safety hazards. Therefore, there are Necessary to improve
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "another end" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that ...
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The invention discloses an ultralow-temperature liquid storage tank pressure automatic constant system which comprises an electric heating type water bath vaporizer and a liquid oxygen tank, the oxygen outlet end of the liquid oxygen tank is connected with the electric heating type water bath vaporizer through a liquid oxygen supply pipe, and the electric heating type water bath vaporizer is further connected with the oxygen inlet end of the liquid oxygen tank through an oxygen return pipe. The electric control box is arranged outside the electric heating type water bath vaporizer, and the liquid oxygen supply pipe is respectively provided with the liquid oxygen supply electromagnetic valve and the pneumatic flow control valve; the electric heating type water bath vaporizer comprises a stainless steel heat preservation box body, an electric heating pipe is installed in an inner cavity of the stainless steel heat preservation box body, a temperature sensor and a liquid level sensor are installed in the inner cavity of the stainless steel heat preservation box body, the electric heating type water bath vaporizer further comprises a liquid supplementing pipe, one end of the liquid supplementing pipe extends into the inner cavity of the stainless steel heat preservation box body, and a liquid level supplementing electromagnetic valve is installed on the liquid supplementing pipe. The device is novel in structural design, peak elimination and valley removal are carried out on gas pressure through electronic simulation control, and the pressure is stabilized within a required set value range.
Description
technical field [0001] The invention relates to the technical field of pressure constant systems, in particular to an automatic pressure constant system for ultra-low temperature liquid storage tanks. Background technique [0002] The pressure used by the existing gas relies on the system composed of the vaporizer of the cryogenic liquid storage tank and the mechanical spring pressure reducing valve, which causes the gas pressure to fluctuate greatly, the pressure is not balanced, and there are certain safety hazards. Therefore, there are Improvements are necessary. Contents of the invention [0003] The object of the present invention is to provide an automatic pressure constant system for ultra-low temperature liquid storage tanks, so as to solve the problems raised in the above-mentioned background technology. [0004] In order to achieve the above object, the present invention provides the following technical solutions: an automatic pressure constant system for ultra-...
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IPC IPC(8): F17C9/02F17C13/02F17C13/04
CPCF17C9/02F17C13/025F17C13/04F17C2250/043F17C2250/0626
Inventor 顾天为
Owner NANTONG HENGXINDA REFRIGERATION EQUIP