CN207043609U - A kind of steel construction confined space welding soot purifying device - Google Patents

Abstract

The utility model discloses a kind of steel construction confined space welding soot purifying device,Its structure includes effectively limit space,Steel construction,Steel construction smallclothes,Air draught flexible pipe,Air supplying hose,Pressure fan,Induced-draught fan,Welding smoke purification device,Moving cart,Steel construction is on confined space extexine,The dust removal by ventilation mode that the utility model is combined using air-supply with exhausting,Welding fume caused by welding process can effectively be reduced,And can reduces air-supply air quantity,The excessive weld seam of wind speed is avoided to produce aeration welding quality,Simultaneously using the draft type for above sending lower row,Welding fume caused by avoiding welding passes through operating personnel's breathing zone,Mitigate health hazard of the welding fume to electric welding field personnel,Workshop will be discharged into again after the high concentration welding soot purifying of the confined space by exhausting system,The Weld fume concentration in whole workshop can effectively be reduced；Avoid the air containing pollution from being discharged to again in the confined space, form benign cycle.

Description

A device for purifying electric welding smoke and dust in a limited space of steel structure

technical field

The utility model relates to an electric welding fume purification device in a steel structure limited space, which belongs to the technical field of occupational disease hazard control.

Background technique

Welding fume is one of the common and harmful occupational disease hazard factors. Based on different welding methods and welding objects, harmful factors including manganese, iron, aluminum, zinc, copper and other metals and their compounds may be produced. Long-term exposure to welding fume will lead to its retention and deposition in the lungs, eventually forming welder's pneumoconiosis.

Marine heavy industry enterprises such as shipbuilding and offshore drilling platforms are typical labor-intensive industries, with a large amount of electric welding work, a large number of construction personnel, and operations involving limited space for steel structures. Barrels, pipes, pressure vessels, etc.) all involve confined space welding operations. During the welding operation, the air can only be ventilated through the air supply hose (some adopt the ventilation method), which only moves the welding fume from one workplace to another, and the welding fume is still confined in the workshop. The ventilator is installed in the workshop outside the cabin, and the air polluted by smoke and dust around the fan may be sent into a limited space during the air supply. When welding in a limited space, the generated gas and fumes are not easy to disperse, and the concentration of welding fume detected by individuals is as high as 40.88mg/m ³ , far exceeding the occupational exposure limit requirement of 4mg/m ³ for welding fume concentration. It can be seen that the confined space can significantly increase the dust exposure of welding workers, and the welding operation in limited space is a prominent problem of labor protection in shipyards and other marine heavy industry enterprises.

The prior open technology application number is: 201220433558.5, a welding fume purification device, which solves the problem that the existing dust removal method is not suitable for electric welding fume control. The welding fume purification device includes several parallel gas collecting hoods integrated with the welding torch. The gas collecting hood is connected with the rotating packing bed. The gas collecting hood is an umbrella structure. hood connection. The beneficial effects of the utility model: the technological process is simple, the dust removal rate reaches over 99%, it is easy to carry, it occupies a small area, the operation cost is low, the energy consumption is small, it is easy to move, and the operation is simple. In the welding operation of the existing limited space air supply or exhaust facilities, if the air supply speed is too high, it will cause bubbles in the weld seam, which will affect the welding quality. A vicious circle is formed. The air supply or exhaust method alone cannot satisfy the concentration of welding fume in a limited space to meet the occupational health exposure limit requirements. The outlet of the air supply hose and the inlet of the exhaust hose are located at random in the limited space. It can pass through the breathing belt of welding workers with the wind, seriously endangering the health of workers.

Utility model content

Aiming at the deficiencies of the existing technology, the purpose of this utility model is to provide a steel structure limited space electric welding fume purification device to solve the problem that when the existing limited space air supply or exhaust facilities are welded, if the air supply wind speed is too high, it will cause Bubbles appear in the welding seam, which affects the welding quality. The welding fume discharged in the limited space is not treated, and then circulated into the limited space, forming a vicious circle. Simply using air supply or exhaust can not meet the concentration of welding fume in the limited space to meet occupational hygiene requirements. The exposure limits require that the outlet of the air supply hose and the inlet of the exhaust hose are located randomly in a limited space, and the welding fume generated by the welding operation can pass through the breathing belt of the welding operator with the wind, seriously endangering the health of the operator.

In order to achieve the above object, the utility model is realized through the following technical scheme: a steel structure limited space electric welding fume purification device, its structure includes a limited space, steel structure, steel structure small parts, suction hose, air supply soft Pipe, air blower, suction fan, welding fume purification device, mobile trolley, the steel structure is set on the outer layer of the limited space, small steel structure parts are installed for internal activities in the limited space, and the mobile trolley is set on the right side of the limited space , the blower, suction fan and welding fume purification device are all installed on the mobile trolley, the blower and suction fan are arranged at the left and right ends of the welding fume purification device, the side end of the blower is provided with an air inlet hose, the The air inlet hose is at the same level as the blower, and the upper end of the blower is vertically connected with the blower hose. The blower hose is provided with a fixed bracket, a magnet, a telescopic hose, an exhaust hood, a side air outlet and a baffle. The wind plate, the air blower is sent from the upper part to the breathing belt of the welding workers through the air inlet hose through the side air outlet of the exhaust hood, the lower part of the fixed bracket is provided with a magnet, and the air supply hose is locked on the steel plate At the entrance of the structure, the air supply hose and the telescopic hose are perpendicular to each other, the exhaust hood is provided with 4 side air outlets, the bottom of the exhaust hood is movably connected to the windshield, and the right side of the suction fan It is movably connected with the welding fume purification device, the left side of the suction fan is connected with the suction hose, the suction hose is arranged under the air supply hose, and the suction hose is provided with a dust cover, The side air inlet and the electromagnetic suction cup, the top of the dust collection hood and the suction hose are perpendicular to each other, the side of the dust collection hood is provided with 4 side air inlets, the bottom of the dust collection hood and the electromagnetic suction cup are an integrated structure, The electromagnetic chuck is electrically connected to the power supply, and the bottom of the electromagnetic chuck is attached to the steel structure.

Further, the bottom of the mobile trolley is provided with a rear support wheel and a front support wheel.

Further, the rear supporting wheel and the front supporting wheel are parallel to each other.

Further, the rear supporting wheel and the front supporting wheel are movably connected with the bottom of the mobile trolley.

Further, the telescopic hose is one of a metal hose and a corrugated hose.

Further, the telescopic tube can be moved up and down to a suitable position as required.

Furthermore, the air sent out by the air supply hose is reflected by the windshield and then discharged from the side air outlet to form a fresh air curtain.

Further, the electric welding fume in the suction pipe is discharged into the welding fume purification device under the action of the suction fan, and the electric welding fume is discharged after being purified.

Beneficial effects of the utility model: adopting the ventilation and dust removal method combining air supply and exhaust can not only effectively reduce the electric welding smoke and dust generated in the welding process, but also reduce the air volume of the air supply, and avoid air bubbles in the welding seam from excessive wind speeds affecting the welding quality. At the same time, the ventilation method of sending up and down is adopted to prevent the welding fumes generated by welding from passing through the breathing belt of the workers, reducing the health hazards of welding fumes to welding workers, and purifying the high-concentration welding fumes in a limited space through the exhaust system before discharging them into the workshop , which can effectively reduce the concentration of welding fumes in the entire workshop; prevent polluted air from being discharged into a limited space again, forming a virtuous circle.

Description of drawings

Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

Fig. 1 is a structural schematic diagram of a steel structure limited space electric welding fume purification device of the present invention.

In the figure: limited space-1, steel structure-2, small steel structure-3, suction hose-4, air supply hose-5, blower-6, suction blower-7, welding fume purification device-8, Mobile trolley-9, air inlet hose-61, fixed bracket-51, magnet-52, telescopic hose-53, exhaust hood-54, side air outlet-55, windshield-56, rear support wheel-91 , Front support wheel-92, dust cover-41, side air inlet-42, electromagnetic sucker-43.

detailed description

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific embodiments.

Please refer to Fig. 1, the utility model provides a technical scheme of electric welding fume purification device with steel structure limited space: its structure includes limited space 1, steel structure 2, small steel structure parts 3, air suction hose 4, air supply hose 5 , blower 6, suction fan 7, welding fume purification device 8, mobile trolley 9, the steel structure 2 is arranged on the outer layer of the limited space 1, and the internal activities of the limited space 1 are provided with a small steel structure 3, and the mobile The trolley 9 is located on the right side of the limited space 1, and the blower 6, the suction blower 7 and the welding fume purification device 8 are all installed on the mobile trolley 9, and the blower 6 and the suction blower 7 are arranged on the left and right sides of the welding fume purification device 8. The side end of the air blower 6 is provided with an air inlet hose 61, the air inlet hose 61 is on the same level as the air blower 6, the upper end of the air blower 6 is vertically connected with the air supply hose 5, and the air supply soft The pipe 5 is provided with a fixed bracket 51, a magnet 52, a flexible hose 53, an exhaust cover 54, a side air outlet 55 and a wind deflector 56. The tuyere 55 is sent to the breathing belt of the welding worker from the upper part, and the lower part of the fixed bracket 51 is provided with a magnet 52, and the air supply hose 5 is locked at the entrance of the steel structure 2 by the magnet 52, and the air supply hose 5 Perpendicular to the telescopic hose 53, the exhaust hood 54 is provided with four side air outlets 55, the bottom of the exhaust hood 54 is flexibly connected to the windshield 56, and the right side of the suction fan 7 is connected to the welding fume purification device 8 is movably connected, the left side of the suction fan 7 is connected with the suction hose 4, the suction hose 4 is arranged under the air supply hose 5, and the suction hose 4 is provided with a dust cover 41. Side air inlets 42 and electromagnetic chucks 43. The top of the dust collection cover 41 is perpendicular to the suction hose 4. The side of the dust collection cover 41 is provided with four side air inlets 42. The dust collection cover 41 The bottom and the electromagnetic chuck 43 are an integrated structure, the electromagnetic chuck 43 is electrically connected to the power supply, the bottom of the electromagnetic chuck 43 is attached to the steel structure 2, and the bottom of the moving trolley 9 is provided with a rear support wheel 91 and a front support wheel. Wheel 92, the rear support wheel 91 and the front support wheel 92 are parallel to each other, the rear support wheel 91 and the front support wheel 92 are movably connected with the bottom of the mobile trolley 9, and the telescopic hose 53 is a metal hose, a corrugated hose In one of them, the telescopic tube 53 can be moved up and down to a suitable position as required, and the air sent by the air supply hose 5 is reflected by the windshield and then discharged from the side air outlet 55 to form a fresh air curtain. Under the action of the suction fan 7, the electric welding fume in the suction pipe is discharged into the welding fume purification device 8, and the electric welding fume is discharged after purification.

The magnets mentioned in this patent are divided into permanent magnets and soft magnets. Permanent magnets are added with strong magnetism, so that the spin of the magnetic substance and the angular momentum of electrons are arranged in a fixed direction. Soft magnetism is added with electricity, and the magnet can generate a magnetic field. It has the property of attracting ferromagnetic substances such as iron, nickel, cobalt and other metals.

When using the utility model, before welding, the inlet of the air inlet hose 61 connected to the blower 6 is placed in a fresh air place, and the air supply pipe 5 is adsorbed on the inlet of the steel structure 2 through the fixed bracket 51 and the magnet 52, and pulled Stretch the flexible hose 53 to a suitable place above the welding workers, place the suction hose 4 and the dust collection cover 41 of the exhaust fan 7 on the bottom of the limited space or the lower side of the steel structure 2, turn on the power supply of the electromagnetic chuck, and set it on the suction The electromagnetic chuck at the bottom of the dust cover 41 is firmly fixed on the base plate of the steel structure 2 . Open the power switch of blower 6 earlier, blower 6 runs, then open exhaust fan 7 and welding fume purification device. Welding workers start to weld the steel structure small parts 3, and the electric welding fume produced is discharged after being purified by the dust collection hood 41, the suction hose 4, the exhaust fan 7 and the welding fume purification device 8; the fresh air passes through the air inlet hose 61, The side air outlet 55 of air duct 5, telescopic pipe 53, exhaust hood 54 is discharged to the breathing zone of welding worker. Welding is finished, after continuing to run for a period of time, first turn off the exhaust fan power switch, then turn off the blower power switch, and finally turn off the power switch of the electromagnetic sucker 53, take out the dust suction cover 41 and the suction hose 4; place, and remove the fixed bracket, take out the exhaust hood and the air supply hose and arrange them for use. The fixed bracket 51 is provided with a magnet instead of an electromagnetic sucker. The main consideration is that the air supply hose 5 and its supporting facilities will be sucked in case of a power failure. The sudden drop of the dust cover 54 affects the welding workers. For example, the fume purification device can be used in electric welding workshops.

Limited space of the present utility model 1, steel structure 2, small steel structure 3, suction hose 4, air supply hose 5, blower 6, suction blower 7, welding fume purification device 8, mobile trolley 9, air intake soft Pipe 61, fixed bracket 51, magnet 52, flexible hose 53, exhaust cover 54, side air outlet 55, windshield 56, rear supporting wheel 91, front supporting wheel 92, dust suction cover 41, side air inlet 42, Electromagnetic chuck 43, parts are common standard parts or parts known to those skilled in the art, its structure and principle all can be known by technical manuals or known by conventional experimental methods for those skilled in the art, the problem that the utility model solves is the existing If there is a technology such as excessive wind speed, it will cause bubbles in the weld seam, which will affect the welding quality. The welding fume discharged in the limited space will be discharged into the limited space without treatment, forming a vicious circle. The concentration of welding fumes in a limited space cannot meet the requirements of occupational health exposure limits. The outlet of the air supply hose and the inlet of the exhaust hose are located at random in the limited space. Harm the health of the workers, the utility model can adopt the ventilation and dust removal method combining the air supply and the exhaust air through the mutual combination of the above components, which can not only effectively reduce the electric welding smoke generated during the welding process, but also reduce the air supply volume, avoiding If the wind speed is too high, air bubbles will be produced in the welding seam, which will affect the welding quality. At the same time, the ventilation method of sending up and down will be adopted to prevent the welding smoke generated by welding from passing through the breathing belt of the workers, and reduce the health hazards of the welding smoke to the welding workers. The high-concentration welding fume is purified and then discharged into the workshop, which can effectively reduce the concentration of welding fume in the entire workshop; prevent the polluted air from being discharged into a limited space again, forming a virtuous circle, as follows:

The blower 6 and the suction blower 7 are located at the left and right ends of the welding fume purification device 8, and the side ends of the blower 6 are provided with an air inlet hose 61, and the air inlet hose 61 is on the same level as the blower 6, and the The upper end of the air blower 6 is vertically connected with the air supply hose 5, and the air supply hose 5 is provided with a fixed bracket 51, a magnet 52, a flexible hose 53, an exhaust cover 54, a side air outlet 55 and a windshield 56. The air blower 6 is sent from the upper part to the breathing belt of the welding operator through the air inlet hose 61 through the side air outlet 55 of the exhaust hood 54. The lower part of the fixed bracket 51 is provided with a magnet 52, and the air supply hose 5 passes through the magnet. 52 is locked at the entrance of the steel structure 2, the air supply hose 5 and the telescopic hose 53 are perpendicular to each other, the exhaust hood 54 is provided with four side air outlets 55, and the bottom of the exhaust hood 54 is in contact with the windshield The plate 56 is flexibly connected, the right side of the suction fan 7 is flexibly connected to the welding fume purification device 8, the left side of the suction fan 7 is connected to the suction hose 4, and the suction hose 4 is arranged on the air supply hose 5, the suction hose 4 is provided with a suction cover 41, a side air inlet 42 and an electromagnetic chuck 43, the top of the suction cover 41 is perpendicular to the suction hose 4, and the suction cover 41 There are four side air inlets 42 on the side of the dust collection cover 41, the bottom of the dust collection cover 41 is an integrated structure with the electromagnetic chuck 43, the electromagnetic chuck 43 is electrically connected to the power supply, and the bottom of the electromagnetic chuck 43 is attached to the steel structure 2 combine.

Company A adopts blower fan 6 upper ends to be vertically connected with air supply hose 5, and telescopic hose 53 is a corrugated hose, and Company B adopts telescopic hose 53 to be a metal hose.

The welding time of Company A is 50 minutes, and the ventilation method is adopted from the top to the bottom, and the purification effect is good;

The welding time of Company B is 90 minutes, and the air supply or exhaust method is adopted, and the purification effect is not good;

In summary, the upper end of the air blower 6 of the utility model is vertically connected with the air supply hose 5, and the telescopic hose 53 is a corrugated hose, which avoids the welding fumes generated by welding from passing through the breathing belt of the workers, and reduces the health hazards of the welding fumes to the welding workers , through the exhaust system to purify the high-concentration welding fume in a limited space and then discharge it into the workshop, which can effectively reduce the concentration of welding fume in the entire workshop.

The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the utility model The present utility model can be realized in other specific forms without the spirit or essential features. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (5)

1. a kind of steel construction confined space welding soot purifying device, its structure includes the confined space (1), steel construction (2), steel knot Structure smallclothes (3), air draught flexible pipe (4), air supplying hose (5), pressure fan (6), induced-draught fan (7), welding smoke purification device (8), shifting Dynamic dolly (9), for the steel construction (2) on the confined space (1) extexine, the confined space (1) internal activity is provided with steel Structure smallclothes (3), the moving cart (9) is on the right side of the confined space (1), the pressure fan (6), induced-draught fan (7) and welding Smoke and dust purifier (8) is installed in moving cart (9), it is characterised in that：

The pressure fan (6), induced-draught fan (7) are located at welding smoke purification device (8) left and right ends, pressure fan (6) side Provided with air intake flexible pipe (61), the air intake flexible pipe (61) is in same level with pressure fan (6), pressure fan (6) upper end It is vertically connected with air supplying hose (5), the air supplying hose (5) is provided with fixed support (51), magnet (52), bellows (53), exhaust hood (54), side air outlet (55) and deep bead (56), the pressure fan (6) is by air intake flexible pipe (61) through row The side air outlet (55) of fan housing (54) delivers to the breathing zone of weld job personnel from top, and fixed support (51) bottom is set There is magnet (52), the air supplying hose (5) is locked in the entrance of steel construction (2), the air supplying hose (5) by magnet (52) It is mutually perpendicular to bellows (53), the exhaust hood (54) is provided with 4 side air outlets (55), exhaust hood (54) bottom It is flexibly connected with deep bead (56)；

It is flexibly connected on the right side of the induced-draught fan (7) with welding smoke purification device (8), it is soft with air draught on the left of the induced-draught fan (7) Pipe (4) is connected, and the air draught flexible pipe (4) is located at the lower section of air supplying hose (5), and the air draught flexible pipe (4) is provided with dust shield (41), side air inlet mouth (42) and magnechuck (43), dust shield (41) top are mutually perpendicular to air draught flexible pipe (4), institute The side for stating dust shield (41) is provided with 4 side air inlet mouths (42), and dust shield (41) bottom is one with magnechuck (43) Body structure, with power supply by electrically connecting, magnechuck (43) bottom is affixed the magnechuck (43) with steel construction (2) Close.

A kind of 2. steel construction confined space welding soot purifying device according to claim 1, it is characterised in that：The shifting Branch wheel (91) and preceding branch wheel (92) after dynamic dolly (9) bottom is provided with.

A kind of 3. steel construction confined space welding soot purifying device according to claim 2, it is characterised in that：After described Branch wheel (91) and preceding branch wheel (92) are parallel to each other.

A kind of 4. steel construction confined space welding soot purifying device according to claim 2, it is characterised in that：After described Branch wheel (91) and preceding branch wheel (92) are flexibly connected with moving cart (9) bottom.

A kind of 5. steel construction confined space welding soot purifying device according to claim 1, it is characterised in that：It is described to stretch Contracting flexible pipe (53) is metal hose, corrugated flexible hose one kind therein.