CN2723844Y

CN2723844Y - Hydrogen-oxygen mixed gas burning torch

Info

Publication number: CN2723844Y
Application number: CN 200420083733
Authority: CN
Inventors: 李勤民
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-03
Filing date: 2004-09-03
Publication date: 2005-09-07
Anticipated expiration: 2014-09-03

Abstract

The utility model discloses a hydrogen-oxygen mixed gas cutting torch which aims at the disadvantages that backfire, detonation ect. Are easy to happen when the existing cutting torch using hydrogen-oxygen mixed gas to serve as air source for flame cutting on line is extinguished. The hydrogen-oxygen mixed gas cutting torch comprises a torch body (8) provided with a cutting nozzle joint (6) on the front end; a cooling water inlet pipeline (4), a cooling water outlet pipeline (5) and a cutting oxygen pipeline (3) communicated with the cutting nozzle joint (6) are arranged inside the torch body (8); the torch body also comprises a connector (7) with sucking-jetting function; one end of the connector (7) is inserted into a gas pipeline (1) and a mixed oxygen pipeline (2), and the other end of the connector (7) is communicated with the cutting nozzle joint (6). Adopting the utility model, the cutting torch can extinguish a flame safely, not causing the backfire and detonation; the utility model has the advantages of simple structure and fine economic benefit.

Description

Hydrogen-oxygen air mixture burning torch

Technical field

The utility model relates to a kind of burning torch that uses the combustion gas cutting metal, particularly a kind of burning torch that uses hydrogen-oxygen air mixture cutting metal.

Background technology

At metallurgy industry, be used for cutting the large volume derby, as: the burning torch of plate slab, source of the gas generally adopts the mineral matter combustion gas, as acetylene, methane etc., compare and use the burning torch of hydrogen-oxygen air mixture as source of the gas, the former advantage is that flame is controlled easily, be convenient to operation, but the former shortcoming also is very tangible, mainly contains: 1. the source of the gas cost height of mineral matter combustion gas, estimation roughly, steel per ton use the mineral matter combustion gas than the cost that uses hydrogen-oxygen air mixture increasing 6-9 unit more, and in fact this is a very large numeral; 2. the otch that uses the mineral matter combustion gas to cut is bigger than the latter, reason is if that the former flame concentration degree is not the latter, generally all handle and be positioned at the metal fillings that incision is blown away as the metal waste residue, being difficult to again, row utilizes, for a large-scale metallurgical enterprise, this direct loss that insufficient utilization of resource is caused also is very surprising; 3. when cutting operation, scene temperature generally all is very high, use the mineral matter combustion gas to cut, source of the gas mostly leaves the scene in the form of storage tank, so its security also needs to treat modestly especially, otherwise the consequence that may cause is very serious, yet, if use the latter, while because hydrogen generally is to use to produce as source of the gas, need not the high capacity storage can satisfy request for utilization, thereby use the latter in fact safer; In addition, use the essentially no any pollution of hydrogen-oxygen air mixture, adapt to environmental protection trend especially.

The burning torch structure of the online flame cutting generally used of metallurgy industry at present as shown in Figure 1,6 be cutting head joint among Fig. 1, burning torch has 5 pipelines to insert, fuel gas pipeline 1, mixing oxygen pipeline 2, cutting oxygen pipe road 3, cooling water inlet pipe road 4 and outlet pipeline 5.If the burning torch of this structure uses the mineral matter combustion gas as source of the gas, basically can satisfy the requirements such as far distance controlled of cutting and flame switch, but has aforementioned every defective, if and this burning torch is when using the hydrogen-oxygen air mixture to carry out online flame cutting as source of the gas, can't realize the far distance controlled of flame switch smoothly, reason just is that the speed of knallgas burning is fast especially, the pass tempering occurs especially easily when fiery and sets off an explosion or detonation, even this blast or detonation phenomenon do not lead to grave consequences, but but can produce great influence to other production equipments at the scene, in the actual production, generally all need to stop work and overhaul, therefore tend to directly have influence on actual production efficiency, therefore, when using at present the hydrogen-oxygen air mixture to carry out online flame cutting as source of the gas, the flame of burning torch does not generally extinguish, even the time of actual cutting is less than the empty time (ratio of this time often reaches 1: 15) of burning far away, obviously, because of sky burns the source of the gas loss that causes also is quite huge, thereby reduce greatly, dash the original various advantages that possesses of this technology that disappeared, this also is that the technology that the hydrogen-oxygen air mixture is carried out online flame cutting as source of the gas is failed to be able at metallurgy industry the main cause of large-scale promotion for a long time always.

Summary of the invention

It is a kind of when using the hydrogen-oxygen air mixture to carry out online flame cutting as source of the gas that technical problem to be solved in the utility model is intended to provide, the burning torch that flame still can be extinguished by safety.

For solving the problems of the technologies described above, the utility model proposes a kind of hydrogen-oxygen air mixture burning torch, comprise that front end is equipped with the rifle body of cutting head joint, the cutting oxygen pipe road of cooling water inlet pipe road, outlet pipeline being housed in the described rifle body and communicating with described cutting head joint; Also include one and have to inhale and penetrate the connector of effect, a termination of described connector is gone into the fuel gas pipeline of burning torch and is mixed the oxygen pipeline, and the other end is connected with described cutting head joint.

After adopting the utility model, because fuel gas pipeline and mixing oxygen pipeline are had the effect of penetrating of inhaling by one, the connector of penetrating suction phenomenon that can produce gas in its cavity inserts cutting head joint, after using the hydrogen-oxygen air mixture to cut, when needing burning torch to close fire, mix the oxygen pipeline as long as open as source of the gas, utilize the suction effect of penetrating of connector, just hydrogen residual in the fuel gas pipeline can be discharged gradually, and then flame safety is extinguished, the back draft phenomenon can not occur.

To and be elaborated to the utility model in conjunction with the accompanying drawings by embodiment below

Description of drawings

Fig. 1 is existing burning torch structural representation;

Fig. 2 is the structural representation of a kind of hydrogen-oxygen air mixture described in the utility model with burning torch;

Embodiment

With reference to Fig. 2, a kind of hydrogen-oxygen air mixture burning torch comprises that front end is equipped with the rifle body 8 of cutting head joint 6, is equipped with cooling water inlet pipe road 4, outlet pipeline 5 in the rifle body 8; Cutting oxygen pipe road 3 can be common mode communicate with the centre of cutting head joint 6, be used in time blowing away with being positioned at the metal fillings that incision is cut; At the fuel gas pipeline 1 of burning torch with mix and also set up one between oxygen pipeline 2 and the cutting head joint 6 in addition and have suction and penetrate the connector 7 of effect, fuel gas pipeline 1, mixing oxygen pipeline 2, cutting head joint 6 threes are connected together, promptly as shown in Figure 2, the fuel gas pipeline 1 and the mixing oxygen pipeline 2 of burning torch are gone into from a termination of connector 7, and the other end of connector 7 is connected with described cutting head joint 6.

The burning torch of said structure still can common mode use common mineral matter combustion gas to carry out online flame cutting as source of the gas, and when the air mixture of use hydrogen-oxygen is lighted a fire as source of the gas and cut, will demonstrate special advantage, not need to open during normal cutting metal and mix oxygen pipeline 2; And after finishing cutting work, when needing burning torch to close fire, mix oxygen pipeline 2 as long as open, in cutting head joint 6, inject the mixture of oxygen bigger slightly by connector 7 than the Hydrogen Vapor Pressure in the fuel gas pipeline 1, just can in connector 7, form and penetrate suction phenomenon, utilize this to penetrate the suction effect, just hydrogen residual in the fuel gas pipeline can be discharged gradually, thereby reach with flame gradually, the purpose extinguished safely, as the effect of using the mineral matter combustion gas, can blast or detonation phenomenon not appear because of tempering.Therefore, the many disadvantages that is caused by back draft all will be readily solved, and at metallurgy industry the hydrogen-oxygen air mixture being laid a solid foundation as the large-scale promotion that source of the gas carries out the technology of online flame cutting, burning torch is simple in structure, make also uncomplicatedly, but economic benefit is very considerable.

From the above mentioned, connector 7 structures own in fact can be very simple, as long as be able to when manufacturing and designing produce effectively and penetrate suction phenomenon, and connector 7 can be installed in outside the described rifle body 8, with more convenient, realize that distance switch controls safely, also can make the shape of connector 7, structure Design more free simultaneously; Also can be installed within the described rifle body 8 as shown in Figure 2, the structure of burning torch more is becoming tight gathers, be convenient for carrying.

Claims

1. hydrogen-oxygen air mixture burning torch, comprise that front end is equipped with the rifle body (8) of cutting head joint (6), the cutting oxygen pipe road (3) of cooling water inlet pipe road (4), outlet pipeline (5) being housed in the described rifle body (8) and communicating with described cutting head joint (6); It is characterized in that: also include one and have to inhale and penetrate the connector (7) of effect, a termination of described connector (7) is gone into the fuel gas pipeline (1) and the mixing oxygen pipeline (2) of burning torch, and the other end is connected with described cutting head joint (6).

2. hydrogen-oxygen air mixture burning torch as claimed in claim 1 is characterized in that: described connector (7) is installed in outside the described rifle body (8).