Mechanical sealing type high-pressure capillary gas circuit device

Abstract

The invention discloses a mechanical sealing type high-pressure capillary gas circuit device for connecting simulation testing equipment with a high-pressure gas refrigerating device. The device comprises a capillary high-pressure gas pipe, two jacket nuts and spiral head sealing components, wherein the two jacket nuts respectively penetrate into two ends of the capillary high-pressure gas pipe, and the spiral head sealing components are arranged in the jacket nuts and surround the outer wall of the capillary high-pressure gas pipe. The simulation testing equipment and the high-pressure gas refrigerating device are connected and sealed through one or two series-wound devices. Two end parts of the capillary high-pressure gas pipe are arranged outside the spiral head sealing components. The device is connected with the simulation testing equipment and the high-pressure gas refrigerating device through the jacket nuts. When the jacket nuts are fastened by virtue of an external pressure in a use state, the spiral head sealing components are deformed so as to surround and seal the outer wall of the capillary high-pressure gas pipe. According to the mechanical sealing type high-pressure capillary gas circuit device, the capillary high-pressure gas pipe can be rapidly and safely mounted; and the device is good in sealing property and flexibility and is particularly suitable for being used in a narrow space and repeatedly detached.

Description

technical field [0001] The invention relates to a capillary gas circuit, in particular to a mechanically sealed high-pressure capillary gas circuit device. Background technique [0002] The ground simulation test equipment needs to be cooled by external high-pressure gas, and the refrigerant gas needs to be transmitted through a high-pressure gas path. The most prominent difficulty is the gas path at the end. Due to strict requirements such as repeated disassembly and assembly, sufficient deflection and deformation allowance, and tight space dimensions, only stainless steel tubes with an outer diameter of about 1 to 3 mm can be used for this section of the gas path (generally referred to as capillary gas path). The pressure of the refrigeration gas circuit is as high as 20MPa-30MPa, which not only requires the capillary stainless steel tube to have sufficient pressure resistance, but also requires reliable sealing of the joint connection. [0003] At present, the connection...

AI Technical Summary

Problems solved by technology

However, the difficulties in the high-pressure environment faced in high-pressure capillary gas path welding still cannot be effectively solved.

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