CN201103906Y

CN201103906Y - Injected suction type semi-automatic imitation type gasoline cutter

Info

Publication number: CN201103906Y
Application number: CNU2007201899937U
Authority: CN
Inventors: 石锋云
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-16
Filing date: 2007-10-16
Publication date: 2008-08-20
Anticipated expiration: 2017-10-16

Abstract

The utility model relates to a radio suction type semi-automatic imitating gasoline cutter, which belongs to a metal cutter using gasoline and oxygen mixing gas as fuel and comprises a valve consisting of a front joint, a back joint and a connecting pipe; an oil and gas channel and a cutting oxygen channel are arranged in the front joint and the back joint; an oil and gas mixing chamber is arranged at the front part of the front joint; an oil and gas mixing pipe and a cutting oxygen connecting pipe are connected between the front joint and the back joint; a radio suction pipe which has a radio suction cone hole at a back end connected with an ejector and has a lateral side connected with a gasoline joint is connected with a back part of the back joint. The oil and gas mixing room can be provided with a guide ring with a front internal conical surface and a back internal conical surface which are in back-to-back position, and the guide ring has clearance with a nozzle core. The radio suction type semi-automatic imitating gasoline cutter can absorb gasoline automatically and form oil and oxygen mixture by not being pressed by an oil tank, is simple in structure, easy in installation and connection, and easy in heat dissipation of the cutter, and gas resistance cannot occur; in addition, the cutter is small in processing difficulty, low in manufacturing cost, stable in burning flame, and safe in work, so the utility model is particularly suitable for being used as the cutting torch of the semi-automatic imitating cutter.

Description

The semi-automatic imitative type gasoline cutter of jet absorption type

Technical field

The utility model relates to a kind of metal cutter of making fuel with gasoline and oxygen mixture.

Background technology

Current, use acetylene, propane and liquefied petroleum gas to make the automatically imitative type cutter of fuel, because acetylene, propane cost height, it is big to transport, preserve difficulty, poor stability, liquefied petroleum gas flame temperature is low, under low temperature environment reason such as cisco unity malfunction, presented state backward in technique, for this reason, people begin to develop the automatically imitative type cutter of making fuel with gasoline and oxygen mixture.China 00208757X utility model patent discloses a kind of " semi auto cutting machine gasoline-oxygen lance ", and this gasoline oxygen lance is made up of valve body, gasoline joint, gasoline main valve, gasoline tube connector, gasoline pipe, gasoline adjusting needle, gasoline control valve handle, petrol jet, preheat oxygen joint, preheat oxygen passage, cutting oxygen joint, cutting oxygen passage, oily oxygen mixing chamber, cutting torch seat, cutting torch.Gasoline pipe, preheat oxygen passage, cutting oxygen passage, oily oxygen mixing chamber and petrol jet are arranged in its valve body.Gasoline need be transported to the gasoline joint through sebific duct again in oil storage tank after pressurization.Like this, it is complex structure not only, and difficulty of processing is big, and easily after working long hours, cause that the cutter bulk temperature raises and produce the air-resistance phenomenon of the initiation of gasoline vapor, cause that fuel feeding is smooth, flame instability even flame-out, thereby potential safety hazard is used and caused in influence.

Summary of the invention

Task of the present utility model is the shortcoming that will overcome existing semi-automatic gasoline oxygen lance, provide a kind of simple in structure, processing and manufacturing difficulty is little, safe and convenient to use, do not need the semi-automatic imitative type gasoline cutter of jet absorption type to the gasoline pressurization.

Task of the present utility model is finished like this: it also has by front connector, the valve body that back joint and extension tube attached are formed, cutting oxygen joint and cutting torch, gas channel and cutting oxygen passage that preheat oxygen and gasoline mixture are all arranged in front connector and the back joint, cutting torch is fixed on the front end of front connector with nut, there is the oil gas mixing chamber front portion of front connector, gas channel in the front connector is forming spray-hole with oil gas mixing chamber junction reduced cross-sectional, the mouth core of cutting torch stretches in the oil gas mixing chamber and is tightly connected with cutting oxygen passage, be connected with oil gas mixing tube and cutting oxygen tube connector between front connector and the back joint, rear portion at the back joint also is connected with an injecting tube, the injector that is connected with the band spray cone on the taper hole is inhaled in penetrating of the rear end of injecting tube, the side of injecting tube is connected with and penetrates the gasoline joint that the suction taper hole is communicated with, and the rear end of injector is connected with the preheat oxygen joint.

For preheat oxygen can further fully be mixed and refinement in the oil gas mixing chamber with the gaseous mixture of gasoline, can in the oil gas mixing chamber, be provided with one and have the guide collar that former and later two lean against inner conical surface, the valve of guide collar and mouth core has little gap.

Because the rear portion of joint is connected with the band injector and penetrates the injecting tube of inhaling taper hole behind the utility model, the side of injecting tube is connected with the gasoline joint again, thereby can rely on the preheat oxygen high velocity air that penetrates from injector, in penetrating the suction taper hole, form negative pressure, gasoline is sucked automatically from the gasoline joint, and needn't allow gasoline flow into through the oil storage tank pressurization from the gasoline joint, thereby structure of the present utility model is simplified greatly, use also more convenient, valve body particularly of the present utility model is by front connector, back joint and tube connector are formed, not only the structure of each part is all fairly simple, install, ease of connection, and the whole easily heat radiation of cutter can not produce air-resistance phenomenon after working long hours, thereby not only processing and manufacturing difficulty is little, production cost is low, and combustion flame is stable, work safety.It is especially suitable for use as the cutting torch of semi-automatic imitative type cutting machine.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the utility model.

The specific embodiment

With reference to accompanying drawing 1, the utility model has the valve body that is composed of a fixed connection by front connector 1, back joint 2 and extension tube attached 3.Gas channel 4 and cutting oxygen passage 5 that preheat oxygen and gasoline mixture are all arranged in front connector 1 and the back joint 2.Cutting torch 6 usefulness nuts 7 are fixed on the front end of front connector 1.There is oil gas mixing chamber 8 front portion of front connector 1, and the gas channel 4 in the front connector 1 forms spray-hole 9 in the junction reduced cross-sectional with oil gas mixing chamber 8, and the mouth core 10 of cutting torch 6 stretches in the oil gas mixing chamber 8 and is tightly connected with the 5 exits formation of cutting oxygen passage.Be connected with oil gas mixing tube 11 and cutting oxygen tube connector 12 between front connector 1 and the back joint 2.In cutting oxygen passage 5 exits at rear portion of back joint 2, be connected with cutting oxygen joint 13.Gas channel 4 exits at rear portion at back joint 2 are connected with injecting tube 14, and the internal diameter of gas channel 4 that preferably will back joint 2 is done more greatly, so that the front end of injecting tube 14 is directly linked to each other with the rear end of oil gas mixing tube 11.The rear portion of injecting tube 14 is penetrated and is inhaled taper hole 15, and penetrating the front end of inhaling taper hole 15 is inner conical surface, and the stage casing is the face of cylinder, and back segment is a flank.Penetrate the injector 17 that is connected with band spray cone 16 on the screwed hole of inhaling taper hole 15 rear portions, the penetrating of the spray cone 16 of injector 17 and injecting tube 14 inhaled taper hole 15 and matched and form negative pressure chamber, the side of injecting tube 14 is connected with gasoline joint 18, and the oil duct of gasoline joint 18 is communicated with the negative pressure chamber of penetrating suction taper hole 15 and form.The rear end of injector 17 can directly not be connected with preheat oxygen joint (drawing among the figure), can connect indirectly by tracheae yet.For preheat oxygen can further fully be mixed and refinement in oil gas mixing chamber 8 with the gaseous mixture of gasoline, in oil gas mixing chamber 8, also be provided with a guide collar 21 that has former and later two inner conical surfaces that lean against 19,20, little gap 22 is arranged between guide collar 21 and the mouth core 10.

During work, earlier send into preheated oxygen from injector 17, sprayed at a high speed and penetrated the preheat oxygen air-flow of inhaling taper hole 15, make to penetrate to inhale and produce negative pressure in the taper hole 15, this negative pressure sucks gasoline mixes with preheat oxygen from gasoline joint 18, spray into then in the oil gas mixing tube 11, the volumetric expansion in oil gas mixing tube 11 of the gaseous mixture of gasoline and preheat oxygen, form aerosol, when this aerosol is flowed through the gas channel 4 of front connector 1 and spray-hole 9, be compressed, after spray-hole 9 sprays into oil gas mixing chamber 8, expand again, the oil oxygen mixture is able to further mixing, refinement, the aerosol of refinement by the little gap 22 between guide collar 21 and the mouth core 10, enters lateral opening 23 of cutting torch 6 mouth cores 10 under the guiding of the preceding inner conical surface 19 of guide collar 21, then from mouth core 10 and outside spray the gap between the through hole 25 of mouth 24 front ends, promptly form oily oxygen flame after the igniting.When this oil oxygen flame with the METAL HEATING PROCESS of desire cutting when temperature required, introduce cutting oxygen from cutting oxygen joint 13 again, this cutting oxygen is flowed through behind the cutting oxygen passage 5 of cutting oxygen passage 5, cutting oxygen tube connector 12 and front connector 1 of back joint 2, from centre bore 26 ejections of cutting torch 6 mouth cores 10, can cut.In order further to prevent cutting torch 6 oil drippings, also the through hole 25 of outer mouth 24 front ends of cutting torch 6 can be made inner small and outside big shoulder hole.

Claims

1, the semi-automatic imitative type gasoline cutter of a kind of jet absorption type, it has by front connector, the valve body that back joint and extension tube attached are formed, cutting oxygen joint and cutting torch, gas channel and cutting oxygen passage that preheat oxygen and gasoline mixture are all arranged in front connector and the back joint, cutting torch is fixed on the front end of front connector with nut, there is the oil gas mixing chamber front portion of front connector, gas channel in the front connector is forming spray-hole with oil gas mixing chamber junction reduced cross-sectional, the mouth core of cutting torch stretches in the oil gas mixing chamber and is tightly connected with cutting oxygen passage, be connected with oil gas mixing tube and cutting oxygen tube connector between front connector and the back joint, it is characterized in that: the rear portion at the back joint also is connected with an injecting tube, the injector that is connected with the band spray cone on the taper hole is inhaled in penetrating of the rear end of injecting tube, the side of injecting tube is connected with and penetrates the gasoline joint that the suction taper hole is communicated with, and the rear end of injector is connected with the preheat oxygen joint.

2, by the semi-automatic imitative type gasoline cutter of the described jet absorption type of claim 1, it is characterized in that: there is one to have the guide collar that former and later two lean against inner conical surface in the oil gas mixing chamber, gapped between guide collar and the mouth core.

3, by the semi-automatic imitative type gasoline cutter of the described jet absorption type of claim 1, it is characterized in that: the through hole of the outer mouth front end of cutting torch is inner small and outside big shoulder hole.