CN101526218B

CN101526218B - Fuel gas energy saving welding torch

Info

Publication number: CN101526218B
Application number: CN2009100953552A
Authority: CN
Inventors: 韩敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-08
Filing date: 2009-01-08
Publication date: 2011-01-26
Anticipated expiration: 2029-01-08
Also published as: CN101526218A

Abstract

The invention relates to a fuel gas welding torch. The technical problem to be resolved is to provide the improvement for a fuel gas flaming welding torch, the improved welding torch is required to have the two functions of strong fire combustion and flame maintenance as well as the characteristics of adjustable flame, obvious energy saving and convenient operation. The technical proposal provided by the invention is as follows: the fuel gas energy saving welding torch is characterized in that the torch body is thereon manufactured with a rotary valve cavity, the inner wall of the middle of the valve cavity is manufactured as an inner conical shape, a sliding valve core is arranged in the valve cavity, the bottom of the valve core is manufactured with a cone matched with the inner conical shape to form a valve mouth which can be closed; the bottom end of the valve core is also under the action of a spring so that the valve core has a potential energy of moving upward to close the valve mouth; besides, a manual drive handle is positioned at the top end of the valve core in a pendulous way; the valve core is also manufactured with a flow discharge passage; a branch path communicating with a Y-shape gas injecting pipe is introduced out of a gas inlet end, a needle-shape valve is arranged at the branch path to adjust the gas flow passing through the branch path.

Description

Fuel gas energy saving welding torch

Technical field

The present invention relates to a kind of fuel gas welding torch, the combustion gas flame welding gun (claiming duration and degree of heating again) that especially uses in the electricity-saving lamp production process.

Background technology

Combustion gas flame welding gun is the conventional instrument in the electricity-saving lamp production process, and used source of the gas is liquefied gas (or coal gas); Because equipment, process aspect, the utilization ratio of liquefied gas (or coal gas) is not high.Main cause is in the production process, and the combustion flame that liquefied gas produces is an intermittently used; For example connecing in the bridge operation in exhaust, is that fluorescent tube of a fluorescent tube carries out successively to the sintering of power saving fluorescent lamps; Each fluorescent tube uses the time of flame to account for about 20%, and the vacant time (emptying time) accounts for 80%; The effective rate of utilization of gaseous mixture only has an appointment 20%.And liquefied gas (or coal gas) from light to increase to temperature required flame need one comparatively the trouble adjustment process.General program is (connecing the bridge operation with exhaust is example): after operating personnel open gas control valve (this valve have only open and close two kinds of duties), the flow of regulator solution gasification (coal gas) and oxygen (makes these the two kinds of gases in the gaseous mixture reach appropriate ratio respectively earlier, and make gaseous mixture have suitable flow), after flame size when making mixture combustion is suitable, be used further to glass lamp heating, cooperate vacuumize, gas injection and seal, binding and welding.Though the time used of flame accounts for about 20%, all the other times also can only emptyly in vain burn; Because if in a single day flame put out, need when lighting once more to adjust respectively the flow of liquefied gas and oxygen again, not only bother again during operating cost, also reduced production efficiency.

Summary of the invention

Technical problem to be solved by this invention is the deficiency that overcomes the above-mentioned background technology, a kind of improvement of combustion gas flame welding gun is provided, this welding gun should have the very hot oven burning and kindling material keeps two kinds of functions, has kindling material adjustable size, obvious energy conservation and operates characteristics easily.

The technical scheme that the present invention proposes is: fuel gas energy saving welding torch, comprise the rifle body, be installed in inlet end on the rifle body, be installed on the rifle body as the Y shape air jet pipe of outlet side and inlet end to the gas channel between the Y shape air jet pipe, it is characterized in that the valve pocket that is shaped on single-revolution shape on the described rifle body, this valve pocket series connection inserts gas channel; Inner conical is made at inwall position in the middle of the valve pocket, inserts a spool slidably in the valve pocket, and the bottom of spool is shaped on and the matched cone of described inner conical, to form closable valve port; The bottom of spool also is subjected to the effect of a spring, makes spool have the potential energy of the close port of moving upward; Other has a manual handle to be positioned at the top of spool swingably, it is moved downward open valve port so that drive spool when being subjected to manual pushing tow; Also be shaped on a current by pass on the spool, this current by pass begins from the spool bottom along the outer circumference surface that extended to the spool middle part after cone passed through in valve core axis, still to connect described gas channel when valve port is closed; Inlet end is also drawn a branch road that leads to Y shape air jet pipe, and a needle valve is set on this branch road, to regulate the throughput through this branch road.

Described manual handle is hinged on the rifle body.

Described needle valve comprises the needle valve inner chamber 2 of a jatharapanvartanasana structure in the branch road, and internal conical surface is made in the connecting part of inner chamber and branch road; The outer circumference surface of needle valve spool is shaped on the screw thread that matches with internal chamber wall portion, and the right-hand member of needle valve is shaped on the cone that matches with described internal conical surface, to realize the adjusting to the branch road throughput when rotating the needle valve spool.

Use principle of the present invention is: operating personnel light welding gun, and the flow of difference regulator solution gasification (coal gas) and oxygen uses light finger pushing hands fixed handle (flow to be opened to maximum afterwards earlier; This moment, air-flow mainly sprayed by Y shape air jet pipe through valve pocket 15, valve port, outlet 8-1, gas channel 8 successively from inlet end 1 again; A small amount of air communication is crossed needle valve 6, branch road 7 converges to gas channel 8), again welding gun is aimed at the power saving fluorescent lamps heating, cooperate with air-extractor vacuumize, gas injection and seal, binding or welding work; Heating is finished the back and is only needed to discharge manual handle, and spring promotes to move close port on the spool, and gas channel promptly is cut off, and only has a little air-flow to pass through from current by pass and needle valve respectively, thereby big fire becomes small kindling material, a circulation end immediately; When needing to heat second power saving fluorescent lamps by the time, only need with light finger pushing hands fixed handle air-flow is increased again, kindling material just increases immediately, can be once more burns and power saving fluorescent lamps is heated with the air-flow ratio of setting up and throughput.

The invention has the beneficial effects as follows: the welding gun that is provided still keeps a burning fire kind owing to do not cut off air-flow fully when cutting out spool; Operating personnel can enable very hot oven as required respectively and keep two kinds of operating modes of kindling material during use, when not only having satisfied sintering to the needs of big flame, and the flame of loitering phase reduced to minimum, thus having reduced energy consumption significantly, fuel saving reaches more than 50%; In addition and since once more when lighting big flame only with hand refer to the pushing tow manual handle, need not regulate the flow proportional of liquefied gas and oxygen again, so operate also very convenient; Thereby has a broad prospect for its application.

Description of drawings

Fig. 1 is a main TV structure schematic diagram of the present invention.

Fig. 2 is the right apparent direction structure for amplifying schematic diagram of the manual handle among Fig. 1.

Fig. 3 is the structural representation of the inlet end among Fig. 1.

The specific embodiment

Below in conjunction with embodiment shown in the drawings, the invention will be further described.

Fuel gas energy saving welding torch comprises rifle body 10, is installed in inlet end 1 on the rifle body, is installed on the rifle body as the Y shape air jet pipe 9 of outlet side and inlet end to the gas channel 8 between the Y shape air jet pipe; These structures are identical with conventional welding gun.Wherein, jet bar is made Y shape (not doing to analyse and observe processing among Fig. 1), and the nozzle 9-1 of both sides and 9-2 are heated power saving fluorescent lamps (representing with dot-dash coil D the figure) from illustrated F1 and F2 both direction.

The change that the present invention did is (referring to Fig. 1, Fig. 2): make the valve pocket 15 of single-revolution shape on the rifle body, this valve pocket series connection inserts gas channel 8; The inner wall surface of valve pocket middle part is made inner conical 15-1, inserts a spool 12 that slidably (can slide along the jatharapanvartanasana axis) in the valve pocket, and the bottom of spool is shaped on and the matched cone 12-3 of described inner conical; Cone 12-3 cooperates with the inner wall surface 15-1 of inner conical and has formed closable valve port; The bottom of spool also is subjected to the effect (spring 14 1 ends are sleeved on the bottom of spool) of a spring 14, makes spool have the potential energy of the close port of moving upward; Other has a manual handle 11 to locate (being that employing jointed shaft 11-1 is hinged as shown in Figure 2) swingably on the rifle body, and is positioned at the top of spool; Manual handle swing can the pushing tow spool moves downward it to open valve port; Also be shaped on a current by pass 12-2 on the spool, this current by pass is from the spool bottom, along the outer circumference surface 12-1 that extended to the spool middle part after cone passed through in valve core axis (among the figure as can be known, this place's outer circumference surface diameter is significantly less than spool top (spool top is as the back-up block that slides) on the valve pocket inwall, still to connect described gas channel when valve port is closed; Owing to this current by pass 12-2 only establishes for conducting kindling material air-flow,, be typically chosen between the 0.5-1.5mm and get final product so diameter is less.In addition, also be shaped on the sealing gasket 13 that is beneficial to sealing on the rifle body.

Inlet end 1 on the rifle body is also drawn a branch road 7 that leads to Y shape air jet pipe; One needle valve 6 is set on this branch road,, guarantees the adjusting of the stable and realization of kindling material air-flow this throughput size to regulate throughput through this branch road.

Described needle valve comprises the needle valve inner chamber 2 of a jatharapanvartanasana structure in the branch road, and internal conical surface 2-1 is made in this inner chamber and branch road connecting part; One needle valve spool 3 also is housed in this inner chamber; The threads engaged of the jatharapanvartanasana wall portion of screw thread that the outer circumference surface of spool is shaped on and inner chamber, the right-hand member of needle valve is shaped on the cone 3-1 that matches with described internal conical surface; Turning handle 3-2, spool 3 are move left and right (distance between cone 3-1 and the internal conical surface 2-1 just changes), can realize the adjusting to the branch road throughput, and sealing ring 5 is used for the sealing of needle valve.

In addition, the inlet end 1 among Fig. 1 is an inlet suction port, puts this joint with the rubber appendix and just can introduce combustion gas from source of the gas.All be shaped on screw thread (shown in Figure 3) on two link 1-21 of this inlet suction port and the 1-22, inlet suction port is by these screw threads 6 fixing with rifle body and needle valve respectively (during installation, being just to be connected on the needle valve 6 at last as the pipeline of branch road 7).Nature also can be made an integral body with needle valve 6 as the inlet suction port of inlet end.

Still it should be noted that: under the situation of combustion gas air pressure big (relative pressure is greater than 0.13Mpa), spool of the present invention can not have current by pass 12-2 yet, promptly adopt the spool that does not have current by pass 12-2, only utilize needle valve also can have the very hot oven of enabling and two kinds of functions of maintenance kindling material.

Claims

1. fuel gas energy saving welding torch, comprise rifle body (10), be installed in inlet end (1) on the rifle body, be installed on the rifle body as the Y shape air jet pipe (9) of outlet side and inlet end to the gas channel (8) between the Y shape air jet pipe, it is characterized in that being shaped on the described rifle body valve pocket (15) of single-revolution shape, this valve pocket series connection inserts gas channel (8); Inner conical (15-1) is made at inwall position in the middle of the valve pocket, inserts a spool (12) slidably in the valve pocket, and the bottom of spool is shaped on and the matched cone of described inner conical (12-3), to form closable valve port; The bottom of spool also is subjected to the effect of a spring (14), makes spool have the potential energy of the close port of moving upward; Other has a manual handle (11) to be positioned at the top of spool swingably, it is moved downward open valve port so that drive spool when being subjected to manual pushing tow; Also be shaped on a current by pass (12-2) on the spool, this current by pass begins from the spool bottom along the outer circumference surface (12-1) that extended to the spool middle part after cone passed through in valve core axis, still to connect described gas channel when valve port is closed; Inlet end is also drawn a branch road that leads to Y shape air jet pipe, and a needle valve is set on this branch road, to regulate the throughput through this branch road.

2. fuel gas energy saving welding torch according to claim 1 is characterized in that described manual handle is hinged on the rifle body.