Special low-temperature liquid level valve bank

Abstract

The invention discloses a special low-temperature liquid level valve bank which comprises a valve body, wherein a first groove and a second groove which are depressed along the longitudinal direction are formed in one side of the valve body; a third groove and a fourth groove are formed in the opposite side of the valve body; a fifth groove and a sixth groove are respectively formed in two ends of the valve body; a first transverse cavity is formed in the bottom of the fifth groove; a second transverse cavity is formed in the bottom of the sixth groove; a first channel is arranged between the fifth groove and the first groove; a second channel is arranged between the first transverse cavity and the third groove; a third channel is arranged between the second groove and the sixth groove; a fourth channel is arranged between the second transverse cavity and the fourth groove; connectors are respectively formed in the first groove, the second groove, the third groove and the fourth groove; valve mechanisms are respectively arranged in the fifth groove, the sixth groove and a seventh groove; the communication and the closing among the first groove, the second groove, the third groove, the fourth groove, the fifth groove, the sixth groove and the seventh groove are realized by the valve mechanisms. According to the special low-temperature liquid level valve bank disclosed by the invention, due to the adoption of the multi-channel structural design, the stability of the valves is improved.

Description

Technical field [0001] The invention relates to a level gauge valve, in particular to a level gauge valve group for low temperature, belonging to the technical field of valves. Background technique [0002] The liquid level of the existing liquefied gas in the cryogenic container is indicated by the value of the differential pressure level gauge. The normal operation of the differential pressure level gauge is protected by a differential pressure level gauge combined control valve. A conventional liquid level gauge valve includes a valve body. One side of the valve body is provided with two longitudinally extending first joints, and the other side is provided with a longitudinally extending second joint corresponding to the first joint. The valve body is provided with a transverse through hole, the transverse through hole is located on the center line of the valve body, the valve body is provided with a longitudinal channel, and the center line of the longitudinal channel is in l...

AI Technical Summary

Problems solved by technology

A traditional liquid level gauge valve includes a valve body, one side of the valve body is provided with two longitudinally extending first joints, and the other side is provided with a longitudinally extending second joint corresponding to the first joints, The valve body is provided with a transverse through hole, the transverse through hole is located on the center line of the valve body, the valve body is provided with a longitudinal channel, and the center line of the longitudinal channel is in the same direction as the center line of the valve body. Vertically distributed, the transverse through hole communicates with the first and second joints through a longitudinal channel, one end of the transverse through hole is provided with a valve seat, and the other end is provided with a valve stem, which is realized through the cooperation of the valve stem and the valve seat The opening and closing between the joints on both sides; the valve stem of the valve with this structure directly bears the pressure of the liquid and is easily damaged; and the processing of this valve is very difficult

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