Welding station smoke dust treatment facility

Abstract

The utility model relates to a smoke dust treatment facility for a welding station, which belongs to the field of smoke dust removal equipment and comprises a fan, a box-type dust remover, a main blast pipe, three-way pipe fittings, an air valve, a dust removal cover, an electric cabinet and a valve sensor, the main blast pipe is hung at the top of a welding workshop and is wired along the welding station, main pipes of the three-way pipe fittings are connected in series on the main blast pipe, and the air valve is connected with the dust removal cover. A branch pipe of the three-way pipe fitting is connected with the dust removal cover through the air valve, and the dust removal cover is arranged above a welding table of a welding station. The valve sensor is arranged on the air valve and can collect the opening and closing state of the air valve and feed the opening and closing state back to a controller in the electric cabinet, and an output terminal of the controller is electrically connected to a variable speed motor of the fan. According to the smoke dust removal device, smoke dust removal treatment can be carried out on a plurality of welding stations of a welding workshop, the operation power of the fan is adjusted according to actual smoke dust removal requirements, and the operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke and dust removal equipment, in particular to a smoke and dust treatment facility for a welding station. Background Art

[0002] The applicant has been engaged in the production and manufacturing of heavy steel structures for a long time, mainly steel structures for bridges, and has also been engaged in related engineering construction, such as the manufacture of large steel box girder bridges, steel tube arch bridges, etc. In the steel structure bridge section of the steel box girder bridge, welding methods are mostly used for processing. In the welding workshop, especially for some special-shaped components, manual welding stations often use mobile welding fume purifiers to deal with welding fumes. The reality is that these manual welding stations are relatively concentrated. If each station is equipped with a mobile welding fume purifier, the initial cost of the equipment and the operation and maintenance are relatively large. If several stations share a mobile welding fume purifier, it may cause idle work and affect production efficiency.

[0003] The utility model patented welding fume purification machine with publication number CN206008307U comprises a housing and a flexible suction arm connected to the top of the housing, the number of the flexible suction arms is multiple, the housing is provided with filter cartridges and fans from top to bottom, and the housing is provided with air outlets in sequence. The utility model solves the purification demand of concentrated multi-station welding operations of mobile welding fume purifiers, but it cannot be used for welding stations that are far away, and the welding workpieces of the applicant are often large in size, and the distance between the welding tables of adjacent welding stations is often more than 10 meters, and the flexible suction arm cannot be deployed for such a long distance.

[0004] Therefore, it is necessary to develop a welding station smoke treatment facility to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model aims to provide a welding station smoke treatment facility, which can remove smoke from multiple welding stations in a welding workshop, adjust the operating power of the fan according to actual smoke removal needs, and reduce operating costs.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The utility model discloses a fume treatment facility for a welding station, comprising a fan, a box-type dust collector, a main air duct, a three-way pipe fitting, an air valve, a dust hood, an electric control box and a valve sensor, wherein the main air duct is hung on the top of a welding workshop and is arranged along the welding station, a plurality of main pipes of the three-way pipe fittings are connected in series on the main air duct, a branch pipe of the three-way pipe fitting is connected to the dust hood through the air valve, and the dust hood is arranged above a welding table of the welding station; the valve sensor is arranged on the air valve and can collect the switch state of the air valve and feed it back to a controller in the electric control box, and an output terminal of the controller is electrically connected to a variable speed motor of the fan.

[0008] Furthermore, it also includes a hose, which is in the form of an accordion tube and can be retracted and moved, and the hose is connected between the air valve outlet and the dust hood; the dust hood is supported by a flexibly movable slide rail hanger or support frame.

[0009] Furthermore, the air valve adopts a manual air duct butterfly valve, and the valve sensor adopts a proximity switch. The proximity switch is installed on the housing of the air valve and can detect the position information of the valve plate when it is closed.

[0010] Furthermore, it also includes a distribution box, each welding station is equipped with a distribution box, the distribution box, the air valve and the dust cover correspond to each other and are configured as a set; a current transformer is arranged in the distribution box, the current transformer is electrically connected to the controller input terminal, the air valve adopts an electric air duct butterfly valve, and the electric actuator of the air valve is connected to the controller output terminal.

[0011] Furthermore, the variable speed motor of the fan is a variable frequency motor or a servo motor, and the corresponding frequency converter or driver of the variable frequency motor or servo motor is electrically connected to the output terminal of the controller.

[0012] Furthermore, it also includes a four-way pipe fitting, the main pipe of the four-way pipe fitting is connected in series to the main air duct, and the branch pipes on both sides of the four-way pipe fitting are respectively connected to a set of the air valve and the dust removal hood.

[0013] Compared with the prior art, the beneficial technical effects of the utility model are:

[0014] The utility model discloses a fume treatment facility for welding stations. By setting a main air duct and a plurality of three-way pipe fittings at the top of a welding workshop, a fume removal air outlet can be allocated to each welding station, and a set of fans and box-type dust collectors can be used to remove welding fumes at multiple locations. At the same time, through the setting of a controller, a valve sensor and a variable speed motor, the output power of the variable speed motor can be adjusted accordingly according to the number of open fume removal branches, thereby reducing energy consumption, and also ensuring the stability of the fume removal wind speed at the dust removal hood. The utility model discloses a fume treatment facility for welding stations. The fume treatment facility can remove fumes from a plurality of welding stations in a welding workshop, and adjust the operating power of the fan according to the actual fume removal demand, thereby reducing the operating cost.

[0015] In addition, by connecting the hose between the air valve outlet and the dust hood, the dust hood can be flexibly positioned within a short distance, and the air can be drawn close to the welding point, which has a good smoke removal effect. By setting the current transformer distribution box to collect the working current information of the electric welder, and using an electric air duct butterfly valve as the matching air valve, the air valve of the corresponding dust hood can be opened and closed according to the working condition of the electric welder, reducing the dependence of the staff. By setting the four-way pipe fitting, two sets of air valves and dust hoods are added to the same welding station, which can meet the smoke removal needs during double-point welding at the same station. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall layout of the fume treatment facilities of the welding station of the utility model;

[0018] Figure 2 This is the control principle diagram of the smoke treatment facility for the welding station of the utility model.

[0019] Explanation of the reference numerals: 1. Fan; 101. Frequency converter; 2. Box-type dust collector; 201. Dust exhaust valve; 3. Main air duct; 4. Three-way pipe fitting; 5. Air valve; 501. Electric actuator; 6. Hose; 7. Dust hood; 8. Electric control box; 801. Controller; 9. Distribution box; 901. Current transformer; 10. Valve sensor. DETAILED DESCRIPTION

[0020] The core of the utility model is to provide a welding station smoke treatment facility, which can remove smoke from multiple welding stations in a welding workshop, adjust the operating power of the fan according to actual smoke removal needs, and reduce operating costs.

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] In a specific embodiment, Figure 1 and Figure 2 As shown, the fume treatment facility for welding stations of the utility model includes a fan 1, a box-type dust collector 2, a main air duct 3, a three-way pipe fitting 4, a wind valve 5, a dust hood 7, an electric control box 8 and a valve sensor 10. The main air duct 3 is suspended on the top of the welding workshop by means of an anchor bolt suspension rod and arranged along the principle of passing through most welding stations. The main pipes of multiple three-way pipe fittings 4 are connected in series to the main air duct 3. The number of three-way pipe fittings 4 is consistent with the number of welding stations. The end of the main air duct 3 is well blocked to avoid air leakage. The branch pipe of the three-way pipe fitting 4 is connected to the dust hood 7 through the wind valve 5. The dust hood 7 is arranged above the welding table of the welding station. The dust hood 7 is in the shape of a trumpet or a square funnel. The valve sensor 10 is arranged on the wind valve 5 and can collect the switch state of the wind valve 5 and feedback it to the controller 801 in the electric control box 8. The output terminal of the controller 801 is electrically connected to the variable speed motor of the fan 1.

[0024] Specifically, the main air duct 3 can be a circular air duct or a square air duct, and a circular air duct is preferred. The diameter of the circular air duct is 630 mm, which can meet the air volume requirements of 12 to 15 welding stations working simultaneously.

[0025] By setting a main air duct 3 and a plurality of three-way pipe fittings 4 at the top of the welding workshop, a smoke removal exhaust port can be allocated to each welding station, and a set of fans 1 and box-type dust collectors 2 can be used to remove welding smoke at multiple locations. At the same time, through the setting of the controller 801, the valve sensor 10 and the variable speed motor, the output power of the variable speed motor can be adjusted accordingly according to the number of smoke removal branches opened, thereby reducing energy consumption, and at the same time, the stability of the smoke removal wind speed at the dust removal hood 7 can be ensured. The welding station smoke treatment facility of the utility model can remove smoke from multiple welding stations in the welding workshop, adjust the operating power of the fan according to the actual smoke removal needs, and reduce the operating cost.

[0026] In a specific embodiment of the present invention, Figure 1 As shown, the welding station smoke treatment facility of the utility model also includes a hose 6, which is in the form of an organ pipe and can be retracted and moved, and the hose 6 is connected between the outlet of the air valve 5 and the dust removal cover 7. The hose 6 is made of PVC and glass fiber composite material with good fire resistance, and the dust removal cover 7 is supported by a slide rail hanger or a support frame that can be flexibly moved.

[0027] By connecting the hose 6 between the outlet of the air valve 5 and the dust hood 7, the dust hood 7 can be flexibly positioned within a short distance, and air can be drawn close to the welding point, thereby achieving a good smoke and dust removal effect.

[0028] In a specific embodiment of the present invention, Figure 1 As shown, the air valve 5 adopts a manual air duct butterfly valve, and the valve sensor 10 adopts a proximity switch. The proximity switch is installed on the shell of the air valve 5 and can detect the position information of the valve plate when it is closed.

[0029] When a manual air duct butterfly valve is used, the operator is required to manually close the air valve 5 in time after welding is completed. The closing information of the air valve 5 is collected by the valve sensor 10 and transmitted to the controller 801 to reduce the output power adjustment of the variable speed motor.

[0030] In another specific embodiment of the present invention, Figure 1 and Figure 2 As shown, the fume treatment facility for welding stations of the utility model also includes a distribution box 9, each welding station is equipped with a distribution box 9, and the distribution box 9 supplies power to the electric welder. The distribution box 9, the air valve 5 and the dust cover 7 correspond to each other and are configured as a set. A current transformer 901 is arranged in the distribution box 9, and the current transformer 901 measures the current supplied to the electric welder by the distribution box 9. The current transformer 901 is electrically connected to the input terminal of the controller 801, and the air valve 5 adopts an electric air duct butterfly valve, and the electric actuator 501 of the air valve 5 is connected to the output terminal of the controller 801.

[0031] Specifically, the controller 801 adopts Siemens S7-200PLC and has analog input and output modules. The transmitter of the current transformer 901 outputs a 1-5V voltage signal to the analog input module of the PLC. The built-in control program of the PLC determines that the welding machine has not worked for a set time for a long time, and controls the corresponding electric actuator 501 to close the air valve 5. At the same time, the analog output module outputs an analog control signal to the variable speed motor side to change the power.

[0032] Specifically, if Figure 2 As shown, the motor of the fan 1 is a variable frequency motor or a servo motor, and the corresponding frequency converter 101 or driver of the variable frequency motor or servo motor is electrically connected to the output terminal of the controller 801.

[0033] By setting a current transformer 901 in the distribution box 9 to collect the working current information of the welding machine, and matching the air valve 5 with an electric air duct butterfly valve, the air valve 5 of the corresponding dust cover 7 can be opened and closed according to the working condition of the welding machine, reducing the dependence of the staff.

[0034] In a specific embodiment of the utility model, the fume treatment facility for welding stations of the utility model further comprises a four-way pipe fitting, the main pipe of the four-way pipe fitting is connected in series to the main air duct 3, and the branch pipes on both sides of the four-way pipe fitting are respectively connected to a set of air valves 5 and dust removal hoods 7. Of course, the directions of the two branch pipe outlets of the four-way pipe fitting can also be adjusted according to actual needs.

[0035] By providing the four-way pipe fitting, two sets of air valves 5 and dust hoods 7 are added to the same welding station, which can meet the smoke and dust removal needs during double-point welding at the same station.

[0036] The working principle of the fume treatment facility for welding stations of the utility model in a specific embodiment is as follows: First, the operator of the welding station adjusts the position of the dust cover 7 according to the position of the welding point, and the principle is to be as close to the welding point as possible without getting in the way. After welding starts, the current transformer 901 collects the working status of the corresponding electric welding machine and feeds it back to the controller 801. The controller 801 controls the electric actuator 501 to open the corresponding air valve 5 and start the exhaust state. At the same time, the controller 801 calculates the required air volume according to the number of open air valves 5, and controls the speed and power of the variable frequency motor of the fan 1 through the frequency converter 101 to perform good air volume adaptation. When a welding station stops welding for a period of time, the current transformer 901 collects that the corresponding electric welding machine has no working status and continuously feeds it back to the controller 801. The controller 801 determines that the electric welding machine has not worked for a long time to the set time, controls the corresponding electric actuator 501 to close the air valve 5, and adjusts the output power of the fan 1 at the same time.

[0037] In summary, the utility model welding station smoke treatment facility can allocate smoke removal exhaust ports to each welding station by setting a main air duct 3 and multiple three-way pipe fittings 4 at the top of the welding workshop, and can realize multiple welding smoke removal with a set of fans 1 and box-type dust collectors 2. At the same time, through the setting of the controller 801, the valve sensor 10 and the variable speed motor, the output power of the variable speed motor can be adjusted accordingly according to the number of openings of the smoke removal branch, thereby reducing energy consumption, and at the same time, the stability of the smoke removal wind speed at the dust removal hood 7 can be ensured. The utility model welding station smoke treatment facility can perform smoke removal treatment on multiple welding stations in the welding workshop, adjust the operating power of the fan according to the actual smoke removal needs, and reduce the operating cost. In addition, by connecting the hose 6 between the outlet of the air valve 5 and the dust removal hood 7, the dust removal hood 7 can be flexibly positioned within a short distance, and the air can be extracted close to the welding point, and the smoke removal effect is good. By setting the current transformer 901 in the distribution box 9 to collect the working current information of the electric welder, and using the electric duct butterfly valve as the supporting air valve 5, the air valve 5 of the corresponding dust cover 7 can be opened and closed according to the working condition of the electric welder, reducing the dependence of the staff. By setting the four-way pipe fitting, two sets of air valves 5 and dust cover 7 are added in the same welding station, which can meet the smoke removal needs of double-point welding in the same station.

[0038] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0039] It should be noted that all components in the technical solution of this application require the necessary additional facilities of water supply, oil supply, electricity supply and gas supply to be driven and / or controlled. If there is no further explanation, it is assumed that the existing technology is used and equipped without special explanation.

[0040] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A welding station fume treatment facility, characterized in that: The invention comprises a fan (1), a box-type dust collector (2), a main air duct (3), a three-way pipe fitting (4), an air valve (5), a dust hood (7), an electric control box (8) and a valve sensor (10); the main air duct (3) is suspended on the top of a welding workshop and arranged along a welding station; the main pipes of a plurality of three-way pipe fittings (4) are connected in series to the main air duct (3); the branch pipes of the three-way pipe fittings (4) are connected to the dust hood (7) through the air valve (5); the dust hood (7) is arranged above a welding table at the welding station; the valve sensor (10) is arranged on the air valve (5) and can collect the switch state of the air valve (5) and feed it back to a controller (801) in the electric control box (8); the output terminal of the controller (801) is electrically connected to the variable speed motor of the fan (1).

2. The welding station fume treatment facility according to claim 1, characterized in that: It also includes a hose (6), which is in the form of an organ pipe and can be retracted and moved. The hose (6) is connected between the outlet of the air valve (5) and the dust hood (7); the dust hood (7) is supported by a movable slide rail hanger or a support frame.

3. The welding station fume treatment facility according to claim 1, characterized in that: The air valve (5) is a manual air duct butterfly valve, and the valve sensor (10) is a proximity switch. The proximity switch is installed on the housing of the air valve (5) and can detect the position information of the valve plate when it is closed.

4. The welding station fume treatment facility according to claim 1, characterized in that: The invention also comprises a distribution box (9), each welding station is equipped with a distribution box (9), the distribution box (9), the air valve (5) and the dust cover (7) correspond to each other and are configured as a set; a current transformer (901) is arranged in the distribution box (9), the current transformer (901) is electrically connected to the input terminal of the controller (801), the air valve (5) adopts an electric air duct butterfly valve, and the electric actuator (501) of the air valve (5) is connected to the output terminal of the controller (801).

5. The welding station fume treatment facility according to claim 1, characterized in that: The variable speed motor of the fan (1) is a variable frequency motor or a servo motor, and the corresponding frequency converter (101) or driver of the variable frequency motor or servo motor is electrically connected to the output terminal of the controller (801).

6. The welding station fume treatment facility according to claim 1, characterized in that: It also comprises a four-way pipe fitting, the main pipe of which is connected in series to the main air duct (3), and the branch pipes on both sides of the four-way pipe fitting are respectively connected to a set of the air valve (5) and the dust removal cover (7).

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