CN215546109U

CN215546109U - Environment-friendly welding machine

Info

Publication number: CN215546109U
Application number: CN202122239721.6U
Authority: CN
Inventors: 王彦峰
Original assignee: Ningjin Yuheng Machinery Manufacturing Co ltd
Current assignee: Ningjin Yuheng Machinery Manufacturing Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-01-18
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses an environment-friendly welding machine which comprises a welding machine body, a welding machine head, a smoke exhaust hood sleeved on the welding machine head, an exhaust pump communicated with the smoke exhaust hood through an exhaust pipe, and a tail gas treatment box used for collecting and treating harmful gas conveyed by the exhaust pump. According to the method, the source of the harmful gas is controlled through the welding head, wherein the harmful gas generated during welding is guided into the tail gas treatment box through the exhaust hood and the exhaust pump for collection treatment, so that the treatment accuracy is improved, and the escape of the harmful gas is reduced; in addition, in the tail gas treatment box, harmful gases such as ozone and the like are adsorbed by utilizing the activated carbon adsorption layer and the modified molecular sieve layer, and carbon monoxide and nitrogen oxide are subjected to catalytic conversion, so that harmless emission is achieved, and the environment-friendly requirement is met.

Description

Environment-friendly welding machine

Technical Field

The utility model relates to the technical field of welding equipment, in particular to an environment-friendly welding machine.

Background

When a conventional electric welding machine is used for welding, a large amount of harmful gases such as ozone, carbon monoxide, nitrogen oxide and the like can be generated; however, the air extraction equipment is usually installed on the top of the corresponding welding workshop, and the processing mode is rough, so that harmful gas can easily escape, the air environment of the working occasion of an operator cannot be improved, and the requirement of environmental protection cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an environment-friendly welding machine, which solves the problem that harmful gas generated by the welding machine during use is not treated properly.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides an environment-friendly welding machine which comprises a welding machine body, a welding machine head, a smoke exhaust hood sleeved on the welding machine head, an exhaust pump communicated with the smoke exhaust hood through an exhaust pipe, and a tail gas treatment box for collecting and treating harmful gas conveyed by the exhaust pump;

the gas extraction hood is a hollow cylinder, the top of the gas extraction hood is hermetically sealed and arranged on the outer peripheral side of the welding machine head, the bottom of the gas extraction hood is connected with a circular truncated cone cover, and a filter screen is arranged at the contact position of the gas extraction hood and the circular truncated cone cover;

one end of the exhaust pipe is communicated with the side wall of the exhaust hood, the other end of the exhaust pipe is communicated with the exhaust pump, and the exhaust pump guides harmful gas into the tail gas treatment box through a gas pipe;

in the tail gas treatment box, from the supreme pickling cistern, bottom active carbon adsorption layer, modified molecular sieve layer and the top active carbon adsorption layer of having set gradually down.

In this embodiment, it is further preferable that the smoke exhaust hood is a cylindrical structure, an upper end surface of the smoke exhaust hood is hermetically connected with the outer peripheral wall of the welding head, and the filter screen is arranged between a lower end of the smoke exhaust hood and the outer peripheral wall of the welding head, and is used for screening impurities in air, wherein when a workpiece is welded, a large amount of dust or falling objects may be generated, and if the dust or falling objects do not affect subsequent treatment of harmful gas.

In the embodiment, the fume extracting hood is further optimized to be made of a transparent material, wherein the working state of the welding machine head can be conveniently and timely observed by using the transparent material, such as glass; the total length of the smoke exhaust hood and the circular truncated cone cover is smaller than the working length of the welding machine head.

In this embodiment, it is further optimized that the gas outlet port of the gas pipe is inserted into the pickling tank, wherein the pickling solution is used to pretreat nitrogen oxides in the gas.

In this embodiment, optimize still further, the bottom active carbon adsorption layer is filled through supporting the carrier in the tail gas treatment box, and be located directly over the pickling cistern, in this embodiment, the particle size of active carbon is less, in order to guarantee that it installs the top of pickling cistern, in this embodiment, can set up ventilative hole board in the bottom of bottom active carbon adsorption layer.

In this embodiment, it is further optimized that a catalyst is attached to the modified molecular sieve layer, wherein the catalyst is used for catalyzing the reaction of carbon monoxide and nitrogen oxide.

In this embodiment, further optimize again, the blast pipe has been seted up at the top of tail gas treatment box, will handle the gas discharge up to standard.

Compared with the prior art, the utility model has the beneficial technical effects that: according to the method, the source of the harmful gas is controlled through the welding head, wherein the harmful gas generated during welding is guided into the tail gas treatment box through the exhaust hood and the exhaust pump for collection treatment, so that the treatment accuracy is improved, and the escape of the harmful gas is reduced; in addition, in the tail gas treatment box, harmful gases such as ozone and the like are adsorbed by utilizing the activated carbon adsorption layer and the modified molecular sieve layer, and carbon monoxide and nitrogen oxide are subjected to catalytic conversion, so that harmless emission is achieved, and the environment-friendly requirement is met.

Drawings

The utility model is further illustrated in the following description with reference to the drawings.

FIG. 1 is a schematic view of a main body of an environment-friendly welding machine according to the present invention;

FIG. 2 is an enlarged view of a portion of the connection of the eco-friendly welding machine of the present invention;

FIG. 3 is a schematic view of the internal structure of the tail gas treatment tank of the environment-friendly welding machine of the present invention.

Description of reference numerals:

1. welding a machine head; 2. a smoke exhaust hood; 2a, a filter screen; 2b, a circular truncated cone cover; 3. an air exhaust pipe; 4. an air pump; 4a, a gas conveying pipe; 5. a tail gas treatment tank; 5a, an acid pickling liquid tank; 5b, a bottom activated carbon adsorption layer; 5c, a modified molecular sieve layer; 5d, a top activated carbon adsorption layer; 5e, an exhaust pipe.

Detailed Description

As shown in fig. 1, the embodiment discloses an environment-friendly welding machine, which includes a welding machine body, a welding machine head 1, a fume extracting hood 2 sleeved on the welding machine head 1, a suction pump 4 communicated with the fume extracting hood 2 through a suction pipe 3, and a tail gas processing box 5 for collecting and processing harmful gas delivered by the suction pump 4;

wherein the welding machine body is an electric welding machine; when the conventional electric welding machine is used, harmful gases such as carbon monoxide, nitrogen oxide, ozone and the like are easily generated; in a welding workshop, the health of workers is seriously influenced; if directly discharged, the quality of the atmospheric environment is affected.

As shown in fig. 2, in this embodiment, the smoke exhaust hood 2 is a hollow cylinder, the top of the smoke exhaust hood is hermetically sealed and arranged on the outer peripheral side of the welding machine head 1, the bottom of the smoke exhaust hood 2 is connected with a circular truncated cone cover 2b, and a filter screen 2a is installed at a contact position of the smoke exhaust hood 2 and the circular truncated cone cover 2 b; when the welding head 1 works, metal powder or falling off can also occur in the generated harmful gas, and if the particle size of the harmful gas is too large, the subsequent treatment of tail gas can be influenced;

in the embodiment, specifically, the smoke exhaust hood 2 is of a cylindrical structure, the upper end surface of the smoke exhaust hood is hermetically connected with the outer peripheral wall of the welding head 1, and the filter screen 2a is installed between the lower end of the smoke exhaust hood and the outer peripheral wall of the welding head 1 and used for screening impurities in air;

in the embodiment, the smoke exhaust hood 2 is made of transparent materials, so that the welding machine head 1 can be observed conveniently; the total length of the smoke exhaust hood 2 and the circular truncated cone cover 2b is shorter than the working length of the welding machine head 1, so that the working angle of the welding machine head 1 can be flexibly adjusted.

As shown in fig. 3, in this embodiment, one end of the exhaust pipe 3 is communicated with the side wall of the exhaust hood 2, and the other end is communicated with the exhaust pump 4, the exhaust pump 4 guides the harmful gas into the exhaust gas treatment box 5 through a gas pipe 4a, wherein the gas pipe 4a is obliquely inserted into the pickling solution tank 5a, so as to facilitate pickling of the harmful gas;

an acid washing liquid tank 5a, a bottom activated carbon adsorption layer 5b, a modified molecular sieve layer 5c and a top activated carbon adsorption layer 5d are sequentially arranged in the tail gas treatment box 5 from bottom to top;

the bottom activated carbon adsorption layer 5b is filled in the tail gas treatment box 5 through a support carrier and is positioned right above the pickling liquid tank 5a, and specifically, the bottom activated carbon adsorption layer 5b is filled and installed in the tail gas treatment box 5 through a porous plate or a porous ceramic carrier; wherein, the bottom active carbon adsorption layer 5b and the top active carbon adsorption layer 5d can be used for adsorbing nitrogen oxide and ozone.

In this embodiment, a catalyst is attached to the modified molecular sieve layer 5c, but in this embodiment, alumina may be used as a carrier, and a noble metal may be used as a catalyst to perform a catalytic reaction (such as platinum, rhodium, palladium) on carbon monoxide and nitrogen oxide, so as to achieve harmless performance;

in this embodiment, an exhaust pipe 5e is disposed at the top of the tail gas treatment box 5 for exhausting clean gas.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description only, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above embodiments are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims

1. The utility model provides an environment-friendly welding machine which characterized in that: the welding machine comprises a welding machine body, a welding machine head, a smoke exhaust hood sleeved on the welding machine head, an air exhaust pump communicated with the smoke exhaust hood through an air exhaust pipe, and a tail gas treatment box for collecting and treating harmful gas conveyed by the air exhaust pump;

2. The environment-friendly welding machine as defined in claim 1, wherein: the smoke exhaust cover is of a cylindrical structure, the upper end face of the smoke exhaust cover is in sealing connection with the peripheral wall of the welding machine head, and the lower end of the smoke exhaust cover is provided with the filter screen between the peripheral wall of the welding machine head and used for screening impurities in air.

3. The environment-friendly welding machine as defined in claim 1, wherein: the smoke exhaust hood is made of transparent materials; the total length of the smoke exhaust hood and the circular truncated cone cover is smaller than the working length of the welding machine head.

4. The environment-friendly welding machine as defined in claim 1, wherein: and the air outlet port of the air conveying pipe is inserted into the pickling liquid tank.

5. The environment-friendly welding machine as defined in claim 1, wherein: the bottom activated carbon adsorption layer is filled in the tail gas treatment box through a support carrier and is positioned right above the pickling liquid tank.

6. The environment-friendly welding machine as defined in claim 1, wherein: and a catalyst is attached in the modified molecular sieve layer.

7. The environment-friendly welding machine as defined in claim 1, wherein: the top of the tail gas treatment box is provided with an exhaust pipe.