CN2278832Y - Front valve high-pressure connection hose - Google Patents

Abstract

The utility model relates to a front valve high-pressure connection hose, which belongs to the connection and gating equipment for liquefied petroleum gas pipeline supply system. The utility model is composed of a high pressure hose (1), a preposition valve (2) and a male screw hand wheel (3). The utility model is characterized in that the right valve body (5) the preposition valve (1) is made into a connecting body which is provided with a flange and can be connected with the angle valve outlet of a steel cylinder; the left valve body (6) of the preposition valve (1) is made into a tooth shaped connecting tube which can be connected with the high pressure hose. When the steel cylinder needs to be changed, the preposition valve (2) is shut, and gas in the high pressure hose can be prevented from leaking and going into the gas station. Thus, the utility model has the advantages that the waste of the gas and the environmental pollution are avoided; a hidden danger of safety is eliminated; a ball valve does not need to be arranged on an air accumulation branch tube with the installation of the utility model, and the cost is saved.

Description

Preposition valve high pressure hose

The utility model belongs to the connection and the switch gear of lpg pipeline supply system.

Each steel cylinder of two groups and the present employing of connecting of pipeline be not with the high pressure hose of preposition valve in the LP gas cylinder group pipeline supply system, one end (front end) is equipped with outside thread handwheel joint and can directly connects with the cylinder angle valve outlet, the other end (rear end) is equipped with pipe thread and connects the passage of formation gas with ball valve on the gas collection arm that is installed in pipe-line system.When combustion gas in the steel cylinder (being called empty bottle) when using up, replacing can that must be in groups the steel cylinder of liquefied petroleum gas (LPG) (being called heavy bottle), at this moment in gas collecting tube, gas collection arm and the high pressure hose still residue pressure is arranged is blau gas inflammable gas about 0.1 MPa, although earlier the ball valve on the gas collection arm is closed when changing heavy bottle, but the inflammable gas of every long about 0.8 meter high pressure hose has still leaked in the bottle group air feed station, except that having wasted these gases, also polluted environment, and the formation unsafe factor, brought hidden danger to safety operation.

The purpose of this utility model provides a kind ofly can be avoided remaining combustion gas at the preposition valve of high pressure hose combustion gas inlet end and leak into preposition valve high pressure hose in the air feed station.To improve the Security of air feed station.

A kind of by high pressure hose [1], the preposition valve high pressure hose that preposition valve [2] and outside thread handwheel [3] are formed, the right valve barrel [5] that it is characterized in that preposition valve [1] make be the inlet end of valve be again the flanged pin connected body that joins with the cylinder angle valve outlet, this connected body (right valve barrel) and cylinder angle valve can be compressed by outside thread handwheel [3], it is that the outlet side of valve is again and the joining profile of tooth connecting tube of high pressure hose that its left valve barrel [6] is made, by outer gland [7] that high pressure hose [1] and this profile of tooth connecting tube is closely compressed together, form tight non-disconnectable connection.

Connected body right-hand member cover one band filter screen rubber gasket [4] during use, sealing and filtration are played in compacted back.The female adapter [8] of high pressure hose [1] rear end directly is screwed on the gas collection arm, is pressed on the gas collecting tube end face to rubber gasket [9], form the flexible channel that the tight preposition valve of right-hand member band [2] can close and open from steel cylinder to the gas collection arm.Combustion gas in one group of steel cylinder is approaching to be used up when changing heavy bottle, close cylinder angle valve earlier, after close preposition valve [2], and then unscrew outside thread handwheel [3], high pressure hose and empty bottle are broken away from, and the heavy bottle of carrying is to changing the position, and the cylinder angle valve that earlier outside thread handwheel [3] is screwed in heavy bottle ends to compressing rubber gasket [4], open cylinder angle valve after opening preposition valve [2] then earlier, change a bottle operation and finish.

The utility model has the advantages that when the steel cylinder group is changed heavy bottle, can close preposition valve, leak in the air feed station, not only avoided the waste of combustion gas, the pollution of environment, the more important thing is and eliminated a kind of potential safety hazard to prevent the combustion gas in the high pressure hose.The utility model is installed, is need not mounting ball valve again on the gas collection arm, saved investment.

Accompanying drawing is a kind of structural drawing of preposition valve high pressure hose, 1-high pressure hose wherein, the preposition valve of 2-, 3-outside thread handwheel, 4-band filter screen rubber gasket, 5-right valve barrel, 6-left valve barrel, the outer gland of 7-, the 8-female adapter, 9-rubber gasket, ← A-gas flow direction.

The utility model will be made the right valve barrel [5] (inlet end) of preposition valve when implementing by tightening the flanged pin connected body that outside thread handwheel [3] can form close-coupled with cylinder angle valve, left valve barrel [6] (outlet side) make by press outer gland [7] can with the tight profile of tooth connecting tube compressed together of high pressure hose [1].The preposition valve [2] that accompanying drawing is painted is a kind of ball valve, adopt the high stopcock of accuracy of manufacturing also can, as long as change spherical valve core into cone shape cock spool, valve body adds man-hour, the fitting surface of valve body and spool changes conical surface into by sphere and gets final product.

Claims (1)

1. A kind of by high pressure hose [1], the preposition valve high pressure hose that preposition valve [2] and outside thread handwheel [3] are formed, the right valve barrel [5] that it is characterized in that preposition valve [1] make be the inlet end of valve be again the flanged pin connected body that joins with the cylinder angle valve outlet, this connected body (right valve barrel) and cylinder angle valve can be compressed by outside thread handwheel [3], it is that the outlet side of valve is again and the joining profile of tooth connecting tube of high pressure hose that its left valve barrel [6] is made, by outer gland [7] that high pressure hose [1] and this profile of tooth connecting tube is closely compressed together, form tight non-disconnectable connection.