一种特气供应分配阀箱

Abstract

本实用新型涉及特气供应技术领域，提出了一种特气供应分配阀箱，包括外箱体、布置于外箱体内的主管道、以及若干个与主管道连通的分配管道，每个所述分配管道上均设置有分配阀，每个所述分配管道外均固定有密封箱，所述密封箱内固定有隔板，所述隔板将密封箱内空间分隔形成相互独立的左腔室与右腔室；本实用新型中通过密封箱将分配阀与操作机构物理隔离，左右腔室形成独立密封空间，有效阻隔特气泄漏路径，左腔室配置手动部件，避免操作过程中对监测系统的干扰，右腔室内置监测装置（如气体传感器），实时监测分配阀微漏，结合密封箱结构形成双重防护，显著提升高危气体输送的安全冗余度。

Claims

1. A special gas supply distribution valve box, comprising an outer box body (1), a main pipe (2) arranged in the outer box body (1), and a plurality of distribution pipes (3) in communication with the main pipe (2), each of the distribution pipes (3) being provided with a distribution valve (4), characterized in that, Each of the distribution pipes (3) is fixed with a sealing box (5), and a partition (6) is fixed inside the sealing box (5). The partition (6) divides the space inside the sealing box (5) into an independent left chamber and a right chamber. The distribution valve (4) is located in the right chamber, and a monitoring device (7) for monitoring leakage of the distribution valve (4) is provided in the right chamber. A manual component (8) and a transmission component (9) for regulating the distribution valve (4) under the drive of the manual component (8) are provided in the left chamber.

2. A specialty gas supply distribution valve box according to claim 1, wherein, The distribution valve (4) includes a valve body (41), a valve shaft (42) is provided on one side of the valve body (41), a valve stem (43) is fixed outside the valve shaft (42), and a U-shaped groove (44) is provided on the valve stem (43).

3. A specialty gas supply distribution valve box according to claim 2, wherein, The manual component (8) includes a drive shaft (81), which is rotatably connected to the sealing box (5). One end of the drive shaft (81) extends through to the outside of the sealing box (5) and is fixed with a handwheel (82). A worm gear (83) is fixed at the location of the drive shaft (81) in the sealing box (5).

4. A specialty gas supply distribution valve box as defined in claim 3, wherein, The transmission component (9) includes a driven shaft (91), which is rotatably connected to the sealing box (5). The driven shaft (91) is axially perpendicular to the drive shaft (81). The driven shaft (91) is axially coincident with the valve shaft (42). A worm gear (92), a turntable (93), and a disc (95) that are axially coincident are fixed on the outside of the driven shaft (91).

5. A specialty gas supply distribution valve box as defined in claim 4, wherein, The worm gear (92) meshes with the worm (83).

6. A specialty gas supply distribution valve box as defined in claim 4, wherein, The turntable (93) is rotatably connected to the partition (6), and a sealing ring (94) is embedded on the outside of the turntable (93).

7. A specialty gas supply distribution valve box as defined in claim 4, wherein, The disk (95) has a through groove (96) on its surface. A slider (97) is provided in the through groove (96). A sliding rod (98) slides through both sides of the slider (97). The sliding rod (98) is fixed to the disk (95). The slider (97) is elastically connected to the disk (95) by a spring (99). A lever (910) located in the U-shaped groove (44) is fixed on the outer surface of the slider (97).

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