CN109539813A

CN109539813A - Burn oxygen valve

Info

Publication number: CN109539813A
Application number: CN201811340371.9A
Authority: CN
Inventors: 臧轲轲; 沈承胜
Original assignee: Jinguan Copper Industry Branch of Tongling Nonferrous Metals Group Holding Co Ltd
Current assignee: Jinguan Copper Industry Branch of Tongling Nonferrous Metals Group Holding Co Ltd
Priority date: 2018-11-12
Filing date: 2018-11-12
Publication date: 2019-03-29

Abstract

The invention discloses a kind of burning oxygen valves, including the spool being arranged in valve body and valve body, the air inlet pipe of valve body is connect with oxygen source, and nut set is connected on the escape pipe of valve body, and escape pipe and nut the set cooperation of valve body will be burnt the constraint of oxygen seal of tube formula and is connected on the escape pipe of valve body.Above scheme will be burnt the constraint of oxygen seal of tube formula by the cooperation of escape pipe and the nut set of valve body and is connected on the escape pipe of valve body, it is ensured that the fastness and leakproofness of junction；Again by releasing the cooperation of escape pipe and nut set, burning oxygen pipe can be enable to be taken out conveniently and be inserted into.Structure is simple, easy to operate, effectively raises the safety for burning oxygen operation.

Description

Burn oxygen valve

Technical field

The present invention relates to metallurgical technology fields, and in particular to a kind of burning oxygen valve burnt in oxygen operation for metal tube.

Background technique

It is one of the important content in metallurgy industry that metal tube, which burns oxygen operation, such as opens the work of metallurgical furnace melt discharge outlet Bad solid-state bonding process generated in industry, burn off metallurgical process etc..In industry common practice be using burn the operation of oxygen pipe (in the industry Generally with steel pipe or other combustion tubes), it burns oxygen pipe one end and is passed through pure oxygen, the other end intervenes operative goals point after lighting, burns oxygen pipe Vigorous combustion generates high temperature under the conditions of the high intensity of pure oxygen is combustion-supporting, and the sticky object of target point is melted and is removed.

It needs purity oxygen combustion-supporting in this operation process, is generally connected in the prior art using special flexible oxygen hose It connects oxygen source and burns oxygen pipe, the internal diameter of oxygen hose is identical as the outer diameter of oxygen pipe is burnt, one end of oxygen hose and the oxygen with regulating valve Source connection, the other end is directly inserted in as free end burns oxygen pipe, when a burning oxygen pipe burns low, will directly burn oxygen pipe and remain section It is extracted from oxygen hose, then is inserted into a new burning oxygen pipe into oxygen hose, repeatedly, until target sticky object is removed Operation is completed.But be inserted directly into oxygen hose due to burning oxygen pipe, it burns to need to remain section after oxygen pipe burns low and pull out and change New burning oxygen pipe, difficulty is larger when this allows for burning oxygen pipe insertion oxygen hose, and slotting tension may cause residual section and be difficult to pull out Out, operating efficiency is influenced；If that inserts is more loose, burning oxygen pipe is very likely resulted under the pressure effect of oxygen and is fallen off, this is not It will result only in and burn oxygen job abort, can also generate security risk.Need more burning oxygen pipes complete in addition, generally burning oxygen operation At grafting is easy to cause oxygen hose interface that flexible deformation occurs repeatedly between burning oxygen pipe and oxygen hose, so that junction Poor sealing performance, oxygen is easy to reveal from junction when burning oxygen operation, causes tempering phenomenon, and burning oxygen operating personnel is caused to be burnt Wound, causes serious accident.Finally, oxygen regulating valve door is fixed on oxygen source end, when operation, needs two people while cooperating, i.e., one People burns oxygen operation, and the adjusting that a people carries out amount of oxygen easily causes the uncoordinated of operation in noisy production environment.

Goal of the invention

The object of the present invention is to provide a kind of for burning the burning oxygen valve connected between oxygen pipe and oxygen hose, is being conveniently replaceable The fastness and leakproofness for guaranteeing junction while burning oxygen pipe, ensure the safety for burning oxygen operation.

To achieve the above object, the technical solution adopted by the present invention is that: a kind of burning oxygen valve, including be arranged in valve body and valve body Spool, the air inlet pipe of valve body connect with oxygen source, and nut set, the escape pipe and nut set of valve body are connected on the escape pipe of valve body Cooperation will be burnt the constraint of oxygen seal of tube formula and is connected on the escape pipe of valve body.

Beneficial effect using the above scheme is: will burn oxygen seal of tube formula by the cooperation of escape pipe and the nut set of valve body Constraint is connected on the escape pipe of valve body, it is ensured that the fastness and leakproofness of junction；Again by releasing escape pipe and spiral shell The cooperation of mother set can enable burning oxygen pipe be taken out conveniently and be inserted into.Structure is simple, easy to operate, effectively raises burning The safety of oxygen operation.

Detailed description of the invention

Fig. 1 is schematic diagram of the invention；

Fig. 2 is the connection schematic diagram of working condition of the present invention；

Fig. 3 is to burn oxygen pipe and oxygen hose connection schematic diagram in the prior art.

Specific embodiment

In conjunction with attached drawing, a kind of burning oxygen valve, including the spool being arranged in valve body 10 and valve body 10, the air inlet pipe 11 of valve body 10 with Oxygen source connects, and nut set 20 is connected on the escape pipe 12 of valve body 10, and 20 cooperation of escape pipe 12 and nut set of valve body 10 will be burnt The sealed constraint of oxygen pipe A is connected on the escape pipe 12 of valve body 10.Core of the invention be by the escape pipe 12 of valve body 10 with The cooperation of nut set 20 will be burnt the sealed constraint of oxygen pipe A and is connected on the escape pipe 12 of valve body 10, it is ensured that the jail of junction Solidity and leakproofness；Again by release escape pipe 12 and nut set 20 cooperation, can enable burn oxygen pipe A be taken out conveniently and Insertion.Structure is simple, easy to operate, effectively raises the safety for burning oxygen operation.The air inlet pipe 11 of valve body 10 and oxygen source it Between connect and fasten by oxygen hose B, do not need between the two frequently separate and insertion.

Further, there is external screw thread to constitute with nut set 20 on the escape pipe 12 to be threadedly coupled, be located at escape pipe 12 The lumen of the end of external nut set 20 is closing, is provided in the closing lumen and burns the sealed cooperation of oxygen pipe A Sealing shroud 30；The pressure ring 40 for being provided between 12 pipe end of sealing shroud 30 and escape pipe and burning the cooperation of oxygen pipe A clamped-in style, pressure ring 40 One side end face is vertical with ring core, the angle of another side end face and ring core is acute angle, and the end face of the vertical ring core of pressure ring 40 is resisted against close On big envelope 30, opposite side end face is resisted against on the nozzle end face of escape pipe 12；The sealing shroud 30 and pressure ring 40 are set in burning oxygen On pipe A, nut set 20 constitutes radial patch to the outer tube wall of sealing shroud 30 when 12 direction precession of escape pipe and pressure ring 40 and burning oxygen pipe A Compact form sealing cooperation.

Specifically, internal diameter, the internal diameter of sealing shroud 30 and the internal diameter of pressure ring 40 that nut covers 20 closing nozzles are slightly larger than Burn the outer diameter of oxygen pipe A, the in this way insertion convenient for burning oxygen pipe A；The internal diameter of escape pipe 12 is less than the outer diameter for burning oxygen pipe A, in this way burning oxygen Pipe A just can be only inserted into 12 pipe end of escape pipe against position, convenient for operator grasp burn oxygen pipe A insertion.Work as burning After oxygen pipe A is inserted into rest position, to the direction tightening nut of escape pipe 12 set 20, sealing shroud 30 and pressure ring 40 are in nut set 20 Lumen in compressed by 12 pipe end of escape pipe, due to the side end face that pressure ring 40 is contacted with 12 pipe end of escape pipe be it is inclined, Radial displacement can occur after 40 stress of pressure ring, burn oxygen pipe A to clamp；Sealing shroud 30 is elastic material, is squeezed after power Its length, which is compressed, causes internal diameter to become smaller, until fitting closely with the outer tube wall for burning oxygen pipe A, constitutes sealing, and burning oxygen pipe A in this way is just It is clamped and what is sealed constrains in the lumen of nut set 20.Conversely, when burning oxygen pipe A burns low, to separate escape pipe 12 The constraint of direction loosening nut set 20, such sealing shroud 30 and 40 couples of pressure ring burning oxygen pipe A will release, and burn the stub segment of oxygen pipe A It can easily be taken out out of nut set 20 lumen.

Further, the valve body 10 is made of the valve body of the valve body of ball valve 50 and check valve 60, ball valve 50 and check valve 60 are sequentially arranged along the airintake direction of valve body 10, and the conducting direction of check valve 60 with ball valve 50 is inlet end, is with escape pipe 12 Outlet side.When it is implemented, the valve body 10 is combinaing valve body, ball valve 50 can not only implement the on-off of oxygen at work, also The size of oxygen feeding amount can be adjusted according to the actual situation by burning oxygen operator, cooperate and complete without two people, save employment Cost；Check valve 60 is arranged between ball valve 50 and escape pipe 12, so that the circulating direction of oxygen can only be flow to by ball valve 50 Escape pipe 12, effectively prevent in the course of work it is possible that tempering phenomenon, ensure that the safety of operator.

Claims

1. a kind of burning oxygen valve, including the spool being arranged in valve body (10) and valve body (10), it is characterised in that: the air inlet of valve body (10) Pipe (11) is connect with oxygen source, is connected with nut set (20) on the escape pipe (12) of valve body (10), the escape pipe (12) of valve body (10) Oxygen pipe (A) sealed constraint will be burnt with nut set (20) cooperation to be connected on the escape pipe (12) of valve body (10).

2. burning oxygen valve according to claim 1, it is characterised in that: have external screw thread and nut set on the escape pipe (12) (20) it constitutes and is threadedly coupled, the lumen for being located at the end of escape pipe (12) external nut set (20) is closing, the closing The sealing shroud (30) for being provided in lumen and burning oxygen pipe (A) sealed cooperation.

3. burning oxygen valve according to claim 2, it is characterised in that: be arranged between sealing shroud (30) and escape pipe (12) pipe end The pressure ring (40) for having and burning the cooperation of oxygen pipe (A) clamped-in style, a side end face of pressure ring (40) is vertical with ring core, another side end face and ring The angle of core is acute angle, and the end face of the vertical ring core of pressure ring (40) is resisted against on sealing shroud (30), and opposite side end face is resisted against outlet On the nozzle end face for managing (12).

4. burning oxygen valve according to claim 3, it is characterised in that: the sealing shroud (30) and pressure ring (40) are set in burning oxygen It manages on (A), outer tube of the nut set (20) to sealing shroud (30), pressure ring (40) and burning oxygen pipe (A) when escape pipe (12) direction precession Wall constitutes radial paste tightening type sealing cooperation.

5. burning oxygen valve according to claim 1, it is characterised in that: the valve body (10) is by the valve body of ball valve (50) and unidirectional The valve body of valve (60) is constituted, and airintake direction of the ball valve (50) with check valve (60) along valve body (10) is sequentially arranged, check valve (60) Conducting direction with ball valve (50) be inlet end, with escape pipe (12) for outlet side.