Welding station environmental control device and method

Abstract

The application discloses a welding station environment control device and an environment control method, which comprises an air composition detection mechanism and a smoke adsorption mechanism arranged at a welding station, the air composition detection mechanism is used for detecting the content of specific components in the air at the welding station, and the smoke adsorption mechanism is used for adsorbing welding fume at the welding station; characterized in that the air composition detection mechanism is a dust detection mechanism; and the dust blowing mechanism and a fence are further arranged at the welding station, the fence is used for surrounding the working area of the welding station, a door structure for entering and leaving the working area of the welding station is arranged on the fence, the dust blowing mechanism can blow air flow to the ground of the working area of the welding station and a welding table, and the wind speed of the blown air flow is 2-10 m / s. During welding operation, the dust detection mechanism is started to monitor the dust concentration in the air, and the smoke adsorption mechanism is started to adsorb smoke; during non-welding operation, the dust blowing mechanism and the smoke adsorption mechanism are started to adsorb smoke.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of welding station environment control device, and particularly relates to a welding station environment control device and an environment control method. BACKGROUND

[0002] In the welding process, a large amount of welding fume (hereinafter referred to as welding smoke) is generated, and at the same time, light radiation, light pollution and noise are also generated during the welding operation, which makes the health conditions of the welding labor operation environment deteriorate, harms the health of the welders, and leads to the decline of the production efficiency of the welding part manufacturing enterprises.

[0003] Welding smoke can cause various welder occupational diseases. Under normal circumstances, welding smoke contains ozone (caused by welding arc discharge to further ionize and oxidize oxygen), carbon monoxide, carbon oxide, nitrogen dioxide, fluoride, chloride, nitrogen oxide, various metal particles and active oxides. Inhalation of too much welding fume (particle size range is 0.1-1 μm) can cause pneumoconiosis, blood system, nervous system diseases and pathological changes of liver, digestive organs, etc. In addition, welding smoke particles contacting with human skin can cause human skin diseases. Therefore, protection against welding smoke is needed.

[0004] In order to effectively judge the welding smoke at the welding station, the technical scheme of the publication number CN114849399A discloses a "welding smoke purification device capable of reducing pollution and purification method thereof", which includes a welding operation area, a plurality of workbenches are arranged on the welding operation area, a lifting support is arranged on the outer side of each workbench, a welding smoke absorption pipe is connected to the lifting support, a welding smoke conveying pipe is connected to the upper part of the welding smoke absorption pipe through a movable connector, the end of the welding smoke conveying pipe is connected to a welding smoke purification device through a connecting end, a baffle is arranged on the outer side of the welding operation area, the welding smoke purification device is located on the outer side of the baffle, the welding smoke conveying pipe passes through the baffle to connect a plurality of welding smoke absorption pipes, a controller is arranged on the outer side of the baffle, the controller is electrically connected with a gas detection sensor group and an operation button, an electric lifting device is arranged on the lifting support, and the controller is electrically connected with the electric lifting device. The controller is connected with a remote monitoring center through a CAN bus. Further in the technical scheme, the gas detection sensor group includes an oxygen detection sensor, a carbon monoxide detection sensor, a hydrogen sulfide detection sensor, a methane detection sensor, a sulfur dioxide detection sensor, a methyl chloride detection sensor, a temperature detection sensor and a humidity detection sensor.

[0005] However, the above "welding smoke purification device capable of reducing pollution and purification method thereof" has the following deficiencies:

[0006] In the technical scheme, the types of sensors used by the gas detection sensor group are more, and the implementation cost is higher. At the same time, the welding smoke purification device can only absorb and remove the welding smoke at the welding station site by negative pressure.

[0007] Therefore, the technical scheme has the problems of high implementation cost and unsatisfactory welding fume treatment effect.

[0008] Therefore, the present application provides a welding station environment control device and a welding station environment control method with lower implementation cost and better welding fume treatment effect. SUMMARY

[0009] The present application provides a welding station environment control device and a welding station environment control method with lower implementation cost and better welding fume treatment effect.

[0010] To solve the above technical problems, the present application adopts the following technical scheme:

[0011] The welding station environment control device comprises an air composition detection mechanism and a welding fume adsorption mechanism arranged at the welding station, the air composition detection mechanism is used for detecting the content of a specific component in the air at the welding station, and the welding fume adsorption mechanism is used for adsorbing and removing the welding fume at the welding station.

[0012] The air composition detection mechanism is a dust detection mechanism.

[0013] The welding station environment control device further comprises a dust blowing mechanism and an enclosure arranged at the welding station, the enclosure is used for enclosing the working area of the welding station, a door structure is arranged on the enclosure to allow access to the working area of the welding station, and the dust blowing mechanism can blow air flow to the ground and the welding table of the working area of the welding station, and the wind speed of the air flow is 2-10 m / s.

[0014] Compared with the prior art, the welding station environment control device has the following advantages:

[0015] 1. The dust detection mechanism is used to detect the dust in the air at the welding station, which is single and highly targeted. The dust concentration is proportional to the concentration of other harmful substances generated during welding. Therefore, the dust concentration in the air can reflect the harmfulness of the air quality at the welding station. The dust detection mechanism is cheaper than the gas detection sensor group in the background technology, and is easier to deploy, implement and use.

[0016] 2、The technical scheme further comprises a dust blowing mechanism and a fence arranged at the welding station, so that the fence can be used to block the floating and diffusion of welding fume, and the dust blowing mechanism can be used to blow the dust on the ground of the working area of the welding station and the welding table into the air during the time period when the welder does not need to enter the working area; in this way, the welding fume dust removal degree of the welding station can be improved by cooperating with the smoke adsorption mechanism, so that the smoke adsorption and treatment effect can be further improved.

[0017] A welding fume collection and treatment method, characterized in that the method comprises the following steps:

[0018] During the welding operation, the dust detection mechanism is started to monitor the dust concentration in the air, and the smoke adsorption mechanism is started to adsorb the smoke;

[0019] During the non-welding operation, the dust blowing mechanism and the smoke adsorption mechanism are started to adsorb the smoke.

[0020] The above welding station environment control device can be used to implement the welding fume collection and treatment method, so that the on-site smoke can be adsorbed in time during the welding operation, and the dust blowing mechanism and the smoke adsorption mechanism can be started (automatically started by the controller) or manually started to make the dust fly during the non-welding operation, so as to enhance the dust adsorption degree, better avoid the dust accumulation at the station, reduce the cleaning workload, and improve the station cleaning timeliness. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A structure diagram of a filter cartridge dust removal filter in the welding fume collection and treatment system in the specific embodiment

[0022] Figure 2 A plan view of the welding station in the welding fume collection and treatment system in the specific embodiment

[0023] Figure 3 A structure diagram of the welding station in the welding fume collection and treatment system in the specific embodiment (connection hose not shown)

[0024] Figure 4 A structure diagram of the welding table in the welding fume collection and treatment system in the specific embodiment

[0025] Figure 5 A structure diagram of the welding table in the welding fume collection and treatment system in the specific embodiment Figure 4

[0026] Figure 6 A structure diagram of the welding table in the welding fume collection and treatment system in the specific embodiment Figure 4

[0027] Figure 7 A structure diagram of the welding table in the welding fume collection and treatment system in the specific embodiment

[0028] ​​Figure 8 Structure diagram of air filter and connecting head in welding fume collection and treatment system in specific embodiment

[0029] Figure 9 Structure diagram of drawer in welding station in welding fume collection and treatment system in specific embodiment

[0030] Figure 10 Structure diagram of Figure 9 Partial enlarged view in

[0031] Figure 11 Structure diagram of adsorption cover in welding fume collection and treatment system in specific embodiment

[0032] Figure 12 Structure diagram of adsorption cover supporting mechanism in welding fume collection and treatment system in specific embodiment

[0033] Figure 13 Structure diagram of Figure 12 Enlarged view in

[0034] Figure 14 Structure diagram of Figure 12 Enlarged view in

[0035] Figure 15 Photo of welding station site (showing adsorption cover, fence, etc.)

[0036] Figure 16 Photo of welding station site (showing adsorption cover supporting mechanism)

[0037] Marked as in the figure:

[0038] Welding fume collection and treatment system:

[0039] A1 main pipe, A2 bypass branch pipe

[0040] A3 main suction pump, A4 auxiliary suction pump

[0041] A5 electrically controlled on-off valve

[0042] A6 filter cartridge dust removal filter

[0043] A7 output chimney

[0044] A8 connecting hose

[0045] Z welding station

[0046] Welding station environmental control device:

[0047] B1 fence

[0048] B2 flashlight

[0049] B3 PM2.5 dust sensor

[0050] B4 Wall-mounted Electric Fan

[0051] Air purification equipment for welding stations:

[0052] C1 Welding Station: C11 Drawer (C110 Air Outlet, C111 Connecting Sleeve, C112 Pulley), C12 Slide Rail, C13 Sealing Material, C14 Limit Stop, C15 Micro Switch, C16 Metal Mesh (C160 Connecting Frame)

[0053] C2 air filter; C21 filter media; C22 electrically controlled exhaust fan; C23 connector.

[0054] Welding fume adsorption structure:

[0055] D1 Adsorption Hood: D11 Support Frame (D110 Connecting Studs), D12 Curtain (D120 Magnetic Strip), D13 Connecting Column (D130 U-shaped Connector), D14 Counterweight, D15 Polyurethane, D16 Suction Interface Adsorption Hood Support Mechanism:

[0056] E1 square tube (E100 upper end plate, E101 lower end plate), E2 lifting platform, E3 guide tube, E4 lifting gear motor, E5 lead screw in lead screw and nut assembly, E6 nut in lead screw and nut assembly.

[0057] E9 Support Cantilever

[0058] E10 Rotary geared motor, E11 Drive gear, E12 Fixed gear Detailed Implementation

[0059] The present invention will now be described in further detail with reference to the accompanying drawings.

[0060] In practical implementation: such as Figures 1 to 16 As shown, the welding fume collection and treatment system includes a fume adsorption mechanism, a fume conveying pipeline, and a filter cartridge dust collector arranged sequentially along the flow direction, and also includes a suction pump installed in the fume conveying pipeline;

[0061] The suction pump includes a main suction pump and a secondary suction pump.

[0062] The dust conveying pipeline includes a main pipe and multiple bypass branch pipes that are sealed and connected to the main pipe;

[0063] The main suction pump is installed on the main pipe; the bypass branch pipe is used to set up at a single welding station and is equipped with the auxiliary suction pump and the electrically controlled on / off valve.

[0064] The advantages of this welding fume collection and treatment system are:

[0065] 1. Each bypass branch pipe is provided with a secondary suction pump and an electrically controlled opening and closing valve, so that each bypass branch pipe corresponding to each welding station can be independently controlled to open and close and suction.

[0066] In this way, not only can the welding fume suction of each welding station be independently controlled, improving the welding fume suction control efficiency of a single station, but also the negative pressure suction of the dry pipe can be accurately applied to the welding station in operation after the independent control of each bypass branch pipe, improving the welding fume suction efficiency.

[0067] 2. Each bypass branch pipe is used in cooperation with a single welding station to suction the welding fume generated during welding of the station, and the welding fume suction is more targeted and has better suction effect.

[0068] The main suction pump is a centrifugal fan, and the secondary suction pump is an axial flow fan.

[0069] Because the secondary suction pump is installed at the welding operation station, the axial flow fan can make the structure more compact, the running noise and power consumption lower, and the negative pressure suction effect of the "fume suction mechanism" at the end better, and the positive pressure in the dry pipe increased, thereby ensuring the suction power of the main suction pump installed in the dry pipe.

[0070] At the same time, the main suction pump is a centrifugal fan, and the centrifugal fan has a large power and is easy to maintain and repair because most of the base body is located outside the dry pipe.

[0071] The main suction pump is fixedly installed in the closed pump house, and the pump house has a through hole for the fume conveying pipeline to pass in or out.

[0072] In implementation, a sound insulation layer is preferably fixedly installed in the closed pump house, and the sound insulation layer is made of asbestos material. The sound insulation layer has better noise reduction, heat insulation, and moisture-proof effects, and can make the operation of the main suction pump more quiet and reliable.

[0073] In this way, the closed pump house can be better assembled in a place far away from the welding station outdoors, so that the noise generated during the operation of the main suction pump can be better isolated and reduced after the main suction pump is loaded in the closed pump house, and the noise environment of the welding operation area can be better maintained.

[0074] The input port of the main suction pump is sealingly connected with the airflow output port of the filter cartridge dust removal filter, and the output port of the main suction pump is connected with the output chimney.

[0075] The main suction pump and the filter cartridge dust removal filter are two sets of matched use, the input ports of the two sets of filter cartridge dust removal filters are respectively sealingly connected with the dry pipe through pipelines; and the output ports of the two sets of main suction pumps are respectively connected with the output chimneys through pipelines.

[0076] The two sets of main suction pumps and filter cartridge dust removal filters can have a better flexible working mode, that is, when more than 80% of the welding stations are working, two sets of main suction pumps are started to form an enhanced smoke suction mode; when less than 50% of the welding stations are working, only one set of main suction pump is started to implement an environmentally friendly and energy-saving welding smoke suction mode.

[0077] In addition, the two sets of main suction pumps and filter cartridge dust removal filters also form a double redundancy structure, which avoids downtime when one of them fails, thereby better ensuring the continuity and reliability of the overall operation.

[0078] The welding smoke collection and treatment system also includes a welding station environment control device, which includes an air composition detection mechanism and a smoke dust adsorption mechanism arranged at the welding station. The air composition detection mechanism is used to detect the content of a specific component in the air at the welding station; the smoke dust adsorption mechanism is used to remove the welding smoke at the welding station.

[0079] The air composition detection mechanism is a dust detection mechanism.

[0080] It also includes a dust blowing mechanism and a fence arranged at the welding station. The fence is used to surround the working area of the welding station, and a door structure is arranged on the fence to allow access to the working area of the welding station. The dust blowing mechanism can blow air flow to the ground and welding table surface of the working area of the welding station, and the wind speed of the blowing air flow is 2-10 meters per second.

[0081] The welding station environment control device of the technical solution has the following advantages:

[0082] 1. Only a dust detection mechanism is used to detect the dust in the air at the welding station, which has single detection and strong targeting. Because the dust concentration is basically proportional to the concentration of other harmful substances generated during welding, the dust concentration in the air can be used to comprehensively reflect the harmfulness of the air quality at the welding station (the dust concentration is proportional to the harmfulness of the air quality). Compared with the background technology which uses a plurality of component gas detection sensors, the dust detection mechanism is cheaper, easier to deploy, implement and promote.

[0083] 2. The technical solution also includes a dust blowing mechanism and a fence arranged at the welding station. In this way, the fence can not only block the floating and diffusion of welding smoke, but also blow the dust on the ground and welding table of the working area of the welding station into the air during the time period when the welder does not need to enter the working area. In this way, the dust blowing mechanism and the smoke dust adsorption mechanism can be operated together to improve the dust removal degree of the welding smoke at the welding station, thereby further improving the dust removal and treatment effect of the welding smoke.

[0084] The welding station environment control device comprises an air composition detection mechanism and a welding fume adsorption mechanism arranged at the welding station, the air composition detection mechanism is used for detecting the content of a specific component in the air at the welding station, and the welding fume adsorption mechanism is used for adsorbing welding fume at the welding station.

[0085] The air composition detection mechanism is a dust detection mechanism.

[0086] The welding station environment control device further comprises a dust blowing mechanism and a fence arranged at the welding station, the fence is used for surrounding the working area of the welding station, a door structure for entering and exiting the working area of the welding station is arranged on the fence, and the dust blowing mechanism can blow air flow to the ground and the welding table top of the working area of the welding station, and the wind speed of the blown air flow is 2-10 m / s.

[0087] Compared with the prior art, the welding station environment control device has the following advantages:

[0088] 1. The dust detection mechanism is used to detect the dust in the air at the welding station, the detection is single and highly targeted, the dust concentration is basically proportional to the concentration of other harmful substances generated during welding, the dust concentration in the air can be used to comprehensively reflect the harmfulness of the air quality at the welding station (the dust concentration is proportional to the harmfulness of the air quality), and the dust detection mechanism is used in the technical solution, which is lower in price than the gas detection sensor group with multiple components in the background technology, and is easier to deploy, implement and popularize.

[0089] 2. The welding station environment control device further comprises a dust blowing mechanism and a fence arranged at the welding station, so that the fence can block the floating and diffusion of welding fume, and the dust blowing mechanism can blow the dust on the ground and the welding table of the working area of the welding station into the air when the welder does not need to enter the working area, so that the welding fume dust adsorption mechanism can be used to improve the adsorption degree of the welding fume dust at the welding station, and the adsorption and treatment effect of the welding fume can be further improved.

[0090] The dust detection mechanism comprises a visible dust detection mechanism and an invisible dust detection mechanism, the visible dust detection mechanism is a white openable and closable light source with a luminous flux of 500-3500 lumens, and can highlight the dust with a particle size of more than 10 μm so that the dust can be seen by the naked eye of the human body.

[0091] The invisible dust detection mechanism comprises a controller, a PM2.5 dust sensor arranged at each welding station and an output prompter, the PM2.5 dust sensor and the output prompter are respectively signal-connected to the controller, and the output prompter is an electrically controlled audible and light alarm or / and an electronic screen.

[0092] The technical scheme simultaneously adopts the visible dust detection mechanism and the invisible dust detection mechanism, wherein the high-brightness white light source is directly used for the visible dust visible to the naked eye of the human body, and the visible dust in the air can be highlighted after the light source is turned on (light scattering phenomenon, the dust and the surrounding can have more intense light and shade contrast in the strong light irradiation area, and the naked eye of the human body is more likely to see), so as to prompt the welder to turn on or control the smoke adsorption mechanism to strengthen the adsorption.

[0093] In addition, the invisible dust (dust below 10 μm) which is difficult to be seen by the naked eye of the human body is more likely to be inhaled into the human body and harm the human body; the technical scheme adopts the structure that the controller is combined with the PM2.5 dust sensor and the output prompter, so that when the invisible dust concentration detected exceeds the threshold value, the output prompter sends an over-standard signal, so that the welder can timely understand the air quality and make a treatment decision.

[0094] In implementation, the color temperature of the openable and closable light source is 5000-6500k.

[0095] In implementation, the openable and closable light source is a movable light source (for example, a flashlight) or an immovable light source (for example, an LED lamp which is fixedly installed on the welding table surface and faces upward or is fixedly suspended by a support and faces downward). Preferably, the movable light source is adopted, so that the light source can not only be used for irradiating and identifying the dust, but also can be used for the convenient lighting function, thereby improving the practicability.

[0096] In implementation, the PM2.5 dust sensor can adopt a ZH06-IV laser dust sensor (detecting particle size range 0.3-10 μm, effective range 0-1000 μg / m 3 ) or a ZPH04 infrared sensor (detecting particle size range 1 μm, effective range 0-1000 μg / m 3 ). Preferably, the ZH06-IV laser dust sensor is adopted, because it has the advantages of higher detection precision and smaller and more compact size (the outer size is 47x37x12.2mm (LxWxH)).

[0097] In implementation, the controller can adopt a single-chip microcomputer, an industrial computer or a display control all-in-one machine.

[0098] The dust blowing mechanism includes at least one wall-mounted electric fan which is fixed in the middle and upper segment of the height direction of the inner side of the fence.

[0099] In this way, the wall-mounted electric fan can be used to accelerate the flow of the airflow, and the ground of the operation area of the welding station and the welding dust flying of the welding table surface can be caused, so that the welding smoke can be more fully adsorbed by the smoke adsorption mechanism, and the operation area of the welding station can be better cleaned and maintained.

[0100] The welding station air control device further comprises a welding station air purification device, which comprises a welding table, an air filter fixedly installed in the lower side space of the welding table, and a blowing port provided on the welding table and capable of blowing air upwards above the welding table.

[0101] The air filter is in communication with external air through a filter material and forms a filter air cavity inside, and an electrically controlled exhaust fan is arranged at the output port of the filter air cavity, and the output port of the filter air cavity is in communication with the blowing port through a gas conveying channel.

[0102] The welding station air purification device has the following advantages:

[0103] 1. The air filter is installed on the lower side of the welding table, which can form a baffle to block welding fume, ensure that the air sucked by the air filter is relatively cleaner, prolong the service life of the filter material, and reduce the use cost.

[0104] 2. The output port of the air filter is in communication with the blowing port capable of blowing air upwards above the welding table through a gas conveying channel, so that the blowing port blowing air upwards can accelerate the upward movement of welding fume, and then cooperate with the adsorption cover above the welding table to quickly and efficiently remove welding fume, and better maintain the air quality at the welding station.

[0105] 3. At the same time, the blowing port blowing air upwards above the welding table can also provide cleaner "fresh air" for the welder, ensuring that the welder inhales cleaner air and achieving a better welding working environment.

[0106] The welding fume collection and treatment method comprises the following steps:

[0107] During welding operation, the dust detection mechanism is started to monitor the dust concentration in the air, and the smoke adsorption mechanism is started to remove smoke;

[0108] During non-welding operation, the dust blowing mechanism and the smoke adsorption mechanism are started to remove smoke.

[0109] The above welding station air control device can realize the welding fume collection and treatment method, so that the on-site smoke can be removed in time during welding operation, and the dust blowing mechanism and the smoke adsorption mechanism can be started manually or automatically (through the controller) to make the dust fly during non-welding operation, enhance the sufficiency of dust removal, better avoid dust accumulation at the station, reduce the cleaning workload, and improve the timeliness of station cleaning.

[0110] The welding station air purification device comprises a welding table, an air filter fixedly installed in the lower side space of the welding table, and a blowing port provided on the welding table and capable of blowing air upwards above the welding table.

[0111] The air filter is communicated with external air through a filter material and an internal filter air cavity is formed, an electric control exhaust fan is arranged at an output port of the filter air cavity, and the output port of the filter air cavity is communicated with the air outlet through a gas conveying channel.

[0112] In implementation, the air filter is fixedly installed on the lower surface of the table panel of the welding table through the hanging support.

[0113] The welding station air purification equipment has the following advantages:

[0114] 1. The air filter is installed on the lower side of the welding table, the welding table can form a baffle to block welding fume, the air inhaled by the air filter is relatively cleaner, the service life of the filter material is prolonged, and the use cost is reduced.

[0115] 2. The output port of the air filter is communicated with the air outlet above the welding table through the gas conveying channel, so that the upward air outlet can accelerate the upward movement of the welding fume, and the welding fume can be quickly and efficiently removed in cooperation with the adsorption cover above the welding table, so that the air quality at the welding station is better maintained.

[0116] 3. At the same time, the air outlet above the welding table can also provide cleaner fresh air for the welder, so that the welder can inhale cleaner air and achieve a better welding environment.

[0117] The lower surface of the table panel of the welding table is provided with a drawer, and the drawer is slidably connected between a pair of support plates provided with slide rails and fixedly installed on the lower surface of the table panel of the welding table through pulleys installed on the two outer plates facing in the length direction of the drawer.

[0118] The two outer plates facing in the length direction of the drawer and the upper end of the rear plate are sleeved with a sealing material, and the sealing material can form a sliding sealing connection with the welding table.

[0119] An air outlet hole is formed in the rear vertical plate of the drawer, and the air outlet hole is sealingly connected with the output port of the air filter through a flexible pipe.

[0120] When the drawer is pulled out, the drawer opening forms the air outlet.

[0121] In implementation, the sealing material is preferably any one of nylon, rubber or polyurethane material.

[0122] After the above technical solution is adopted, the drawer can not only be used to put necessary items during welding operation, but also can form an air outlet after being pulled out, and the size of the air outlet can be adjusted by the size of the drawer opening after being pulled out.

[0123] When the opening of the drawer opening is small, the blowing flow rate is larger, the welding fume blowing effect is better, and it is suitable for the case where the welding fume generation rate is faster;

[0124] When the opening of the drawer opening is large, the blowing coverage is larger, the blowing flow rate is smaller, and it is suitable for the case where the welding fume generation rate is slower but the generation coverage is larger.

[0125] In addition, the opening after the drawer is pulled out is used as the blowing port, so even if welding fume or welding slag falls into the blowing port, it is convenient to clean by pulling open the drawer, and therefore the practicability is higher.

[0126] At least two of the drawers are arranged in parallel along the length direction of the welding table; a limiting block is arranged on the lower surface of the table top of the welding table, and a plurality of limiting blocks are arranged one by one corresponding to the rear side of the upper end of the front plate of each drawer; a blowing start-stop switch is arranged on each limiting block, and the blowing start-stop switch is any one of a micro switch, a form switch or a touch switch;

[0127] It also includes a valve controller and an electromagnetic valve arranged in each flexible pipe in sealing communication with the drawer; the electromagnetic valve and the blowing start-stop switch are respectively electrically connected with the valve controller; the blowing start-stop switch is used to send a trigger signal to open the electromagnetic valve in the corresponding flexible pipe of the drawer after the drawer is opened, and the blowing start-stop switch is used to trigger the valve controller to close the electromagnetic valve after the drawer is closed.

[0128] After the above structure is adopted, the position of the multiple drawers can be used to adapt to the displacement of the welder during welding operation, so that the welder can work along the length of the welding table and pull out the drawer at the adjacent position to obtain the fresh air blown from above, ensuring that the standing position during operation can obtain better air quality and better guarantee the health of the welder.

[0129] A connecting head in a whole cover type structure is detachably and fixedly connected to the output port of the filtering air cavity; the lower end of the connecting head is in sealing butt joint with the output port of the filtering air cavity; a plurality of outwardly convex connecting pipes corresponding to the number of the drawers are arranged on the circumferential side wall of the connecting head, and each connecting pipe is in communication with the inside of the connecting head.

[0130] In this way, since the connecting head is independent of the air filter, it is convenient to process the connecting head to match and sealingly butt joint with the flexible pipes of the multiple drawers, simplifying the structure and improving the connection efficiency.

[0131] In implementation, the lower end of the connecting head can be in interference fit with the output port of the air filter to realize sealing sleeve connection, and a hoop is used to realize tight connection.

[0132] The outer side of the rear side vertical plate of the drawer is fixedly provided with a sleeve pipe extending rearward and used for sleeving the end of the flexible pipe, and the sleeve pipe is sealingly and centrally connected with the air outlet hole of the rear side vertical plate of the drawer;

[0133] The front side of the rear side vertical plate of the drawer is further fixedly provided with a metal mesh covering the air outlet hole, and the edge of the stainless steel mesh is clamped and connected with a connecting frame made of stainless steel material, and the radially inner side edge of the connecting frame is in the form of an inwardly convex sawtooth shape.

[0134] After the above sleeve pipe is used, the end of the flexible pipe can be conveniently sleeved, and the sleeve pipe can be quickly connected with the end of the flexible pipe by using a hoop.

[0135] After the above metal mesh is used, objects (such as mice, cockroaches or small parts) can be effectively prevented from entering the fresh air channel, thereby achieving better protection.

[0136] Meanwhile, after the structure of the radially inner side edge of the connecting frame being in the form of an inwardly convex sawtooth shape is used, the sawtooth-shaped inner side edge can be used to break the jet flow passing through the edge and generate turbulence, thereby reducing the flow rate of the jet flow blown out of the air outlet hole and simultaneously reducing the vibration noise caused by the higher flow rate, so as to help reduce noise and improve quietness.

[0137] Welding fume adsorption structure, comprising an adsorption cover, the upper part of the adsorption cover is provided with an air suction interface sealingly connected with a smoke dust conveying pipeline for negative pressure air suction;

[0138] The top of the adsorption cover is provided with a support frame in the form of a horizontal frame body, and the top of the support frame is sealingly and coveringly provided with a cover plate, and the cover plate is provided with the air suction interface;

[0139] The side surface of the support frame is detachably and fixedly connected with a plurality of curtain cloths made of soft plastic along the frame edge of the support frame, and the vertical projection of the plurality of curtain cloths falls on the frame edge of the support frame;

[0140] The two vertical edges of each of the curtain cloths are fixedly connected with a magnetic attraction strip with the same height as the curtain cloth, and the edges of the adjacent two curtain cloths are magnetically and sealingly connected through the magnetic attraction strips;

[0141] The bottom of each of the curtain cloths is provided with a counterweight.

[0142] Compared with the prior art, the welding fume adsorption structure has the following advantages:

[0143] 1. The curtain cloth is made of soft plastic, which has the advantages of air-tightness, easy processing and easy assembly

[0144] The height of the curtain cloth fixedly connected on the support frame can be selected according to the working site and cut to a suitable size, and the lower end of the curtain cloth can be adjacent to the welding working position, so as to help obtain a better welding fume collecting and adsorbing effect.

[0145] 2. When the welder is welding, even if any part of the human body accidentally hits the adsorption cover, the curtain cloth on the adsorption cover can deform with the impact force, thereby reducing the damage to the position of the human body hit, and playing a role of protecting the human body.

[0146] The curtain cloth is made of PVC film material.

[0147] In this way, the mass of the curtain cloth and the entire adsorption cover is lighter, the load of the support cantilever is reduced, the reliability of the adsorption cover is better ensured, and the harm to the human body in case of an accident (for example, accidental falling does not cause serious injury) is reduced, and the protection is better.

[0148] At the same time, the PVC film material has the advantages of being easy to cut and not easy to scratch and damage, and is more reliable for long-term use.

[0149] A plurality of connecting studs are fixedly arranged on the outer side of the frame edge of the support frame along the length direction, a plurality of connecting holes corresponding to the plurality of connecting studs are arranged through the top of the plurality of curtain cloths, and the plurality of curtain cloths are sleeved on the plurality of connecting studs through the connecting holes and locked and connected by nuts.

[0150] Further, a pressing block is arranged between the top outer side of the plurality of curtain cloths and the nut, and the pressing block has a through hole through which each connecting stud passes and which corresponds to the connecting hole.

[0151] The assembly structure between the above curtain cloth and the frame edge of the support frame has the advantages of convenient disassembly and assembly, and the curtain cloth is easy to disassemble and assemble. At the same time, the top of the curtain cloth can be pressed tightly by cooperating with the pressing block, the reliability of the connection and sealing is better, and the reliability of the adsorption cover for welding fume adsorption is better ensured.

[0152] A plurality of mounting holes are fixedly arranged on the outer side of the frame edge of the support frame along the length direction, a plurality of connecting holes corresponding to the plurality of mounting holes are arranged through the top of the plurality of curtain cloths, and a bolt and a nut are arranged in each mounting hole and the corresponding connecting hole to realize locking and connecting.

[0153] Further, a pressing block is arranged between the top outer side of the plurality of curtain cloths and the nut, and the pressing block has a through hole corresponding to the connecting hole.

[0154] Similarly, by using the above bolt and nut, the curtain cloth also has the advantage of convenient disassembly and assembly.

[0155] The top of the support frame is fixedly provided with an upwardly protruding connecting column, and the top of the upwardly protruding connecting column is fixedly provided with a U-shaped connecting part; a pair of rollers are fixed inside the opening of the U-shaped connecting part, or the opening of the U-shaped connecting part has a pair of protrusions that extend laterally inward and are spaced apart, and the lower end face of the pair of protrusions is fixedly connected to a slider made of polyurethane.

[0156] With the above-mentioned connecting column and its U-shaped connecting part structure, the slider or roller made of polyurethane can be slidably mounted on the support cantilever with the cross section of "I" to achieve the ability to move laterally along the length of the support cantilever to adjust the position of the adsorption hood to better align with the welding fume generation area, thereby obtaining the advantage of better welding fume removal function.

[0157] An adsorption hood support mechanism includes a vertically adjustable support structure, which is used for mounting the adsorption hood and enabling vertical adjustment.

[0158] The vertical liftable support structure includes a vertical support rod, on which a lifting platform is provided that can be raised, lowered, and positioned along the height of the support rod;

[0159] It also includes a rotating structure, which comprises a planar thrust bearing, a vertical shaft, and a laterally extending support cantilever; the upper surface of the lifting platform is rotatably connected to the end of a support cantilever via the planar thrust bearing and the vertical shaft, the support cantilever being used to suspend the adsorption hood.

[0160] Compared with existing technologies, the adsorption hood support mechanism of this technical solution has the following advantages:

[0161] Not only can the adsorption hood be vertically raised and lowered, but the aforementioned rotating structure also allows the supporting cantilever to rotate around the vertical axis, thereby achieving circumferential rotation. This allows the adsorption hood, suspended on the supporting cantilever, to also move laterally, thus better meeting the changing requirements of welding operations. The position of the adsorption hood can be flexibly adjusted according to the welding processing point to obtain a better welding fume removal effect and better ensure that welders are in a better working environment.

[0162] The rotating structure also includes a rotation reduction motor, a drive gear, and a fixed gear; the fixed gear is coaxial with the vertical shaft and fixed to the upper surface of the lifting platform; the rotation reduction motor with its shaft facing vertically downward is fixedly installed on the outer side of the end of the support cantilever, and the drive gear is coaxially fixedly installed on the shaft of the rotation reduction motor, and the drive gear meshes with the fixed gear.

[0163] Adopt the above structure, namely through the motor controller to control the rotation of the reduction motor forward or reverse, namely the support on the cantilever adsorption cover transverse positioning, more convenient operation.

[0164] The support rod is a vertical square tube, the top and the middle part of the square tube in the height direction are fixedly provided with upper and lower end plates opposite to each other, and a guide tube is vertically and fixedly connected between the upper and lower end plates, the cross section of the guide tube is rectangular;

[0165] The outer side of the guide tube is sleeved with a sliding member in the vertical "H" type structure, the outer side of the upper end of the sliding member is fixedly connected with a transversely outward protruding support plate through a reinforcing rib block, the sliding member and the support plate together constitute the lifting platform, and the opposite sides of the "H" type structure of the sliding member are provided with guide pulleys rolling along the outer side of the guide tube.

[0166] The vertical lifting support structure further comprises a screw nut pair and a lifting reduction motor, the lifting reduction motor is fixedly installed on the lower end plate and is drivingly connected with the screw rod in the screw nut pair, and the nut in the screw nut pair is fixedly installed on the outer side of the sliding member and is connected with the upper segment of the screw rod through threads.

[0167] The square tube as the main support rod has the advantages of structural strength and reliable support, and further, after the upper and lower end plates and the guide tube between them are fixedly arranged on the square tube, the structural strength and reliability of the whole vertical lifting support structure can be further improved.

[0168] The sliding member sleeved on the outer side of the guide tube has a simple structure and high strength, and can be well connected to the outer side of the guide tube, and further, the coaxiality and the limiting structure of the screw nut pair are combined, so that the reliable lifting and sliding of the sliding member along the guide tube can be ensured, and at the same time, the reliable sliding of the sliding member along the guide tube can further optimize the stress of the screw nut pair (greatly offset the radial stress), and improve the durability and reliability of the nut moving up and down on the screw rod.

[0169] The protective sleeve sleeved on the outer side of the screw rod is fixedly installed on the lower end plate, so that the protective sleeve can prevent the body from being accidentally touched by the screw rod and causing injury, thereby providing better protection.

[0170] The cross section of the support cantilever is in the "H" type structure.

[0171] In this way, the support cantilever has the advantages of lighter weight and higher structural strength, and reliable support of the adsorption cover can be ensured.

[0172] Furthermore, the structure of the aforementioned support cantilever makes it easy to use in conjunction with the connecting column and its U-shaped connecting part on the adsorption hood. This allows the adsorption hood to be easily and slidably fitted onto the support cantilever with an "I"-shaped cross-section, enabling the adsorption hood to be moved laterally along the length of the support cantilever to adjust its position and better align with the welding fume generation area, thereby achieving the advantage of superior welding fume removal function.

[0173] The above are merely preferred embodiments of the present invention. It should be noted that any modifications and improvements made by those skilled in the art without departing from the present technical solution should also be considered to fall within the scope of protection claimed in this claim.

Claims

1. A welding station environment control device, comprising an air composition detection mechanism and a fume suction mechanism arranged at a welding station; the fume suction mechanism is used to suck off welding fume at the welding station; characterized in that: the air composition detection mechanism is a dust detection mechanism; further comprising a dust blowing mechanism and a fence arranged at the welding station, the fence is used to enclose the working area of the welding station, and a door structure for entering and exiting the working area of the welding station is arranged on the fence; the dust blowing mechanism can blow air flow to the ground and welding table surface of the working area of the welding station, and the wind speed of the blowing air flow is 2-10 meters per second; further comprising a welding station air purification equipment, the welding station air purification equipment comprises a welding table, an air filter fixedly installed in the lower side space of the welding table, and a blowing port arranged on the welding table and capable of blowing air to the upper side of the welding table; the air filter is fixedly installed on the lower surface of the table panel of the welding table through a hanging support; the air filter is in communication with external air through a filter filter material and forms a filter air cavity inside; an electric control exhaust fan is arranged at the output port of the filter air cavity, and the output port of the filter air cavity is in communication with the blowing port through a gas conveying channel; a drawer is installed on the lower surface of the table surface of the welding table, and the drawer is slidingly connected between a pair of support plates provided with sliding rails and fixedly installed on the lower surface of the table surface of the welding table through pulleys installed on the two outer panel surfaces facing in the length direction of the drawer; a circle of sealing material is sleeved on the upper side end of the rear side plate of the two outer panel surfaces and the rear side plate facing in the length direction of the drawer, and the circle of sealing material can form a sliding sealing connection with the welding table; an air outlet hole is formed in the rear side plate of the drawer, the air outlet hole is sealingly connected between the output port of the air filter through a flexible pipe, and the drawer port forms the blowing port after the drawer is pulled out.

2. The welding station environment control device according to claim 1, characterized in that: the dust detection mechanism comprises a visible dust detection mechanism and an invisible dust detection mechanism; the visible dust detection mechanism is a white light source with an opening and closing function and capable of highlighting dust with a particle size greater than 10 μm to make the dust visible to the naked eye of the human body, and the light source has a luminous flux of 500-3500 lumens; the invisible dust detection mechanism comprises a controller, a PM2.5 dust sensor arranged at each welding station, and an output prompter; the PM2.5 dust sensor and the output prompter are respectively signal connected with the controller, and the output prompter is an electrically controlled audible and visual alarm or / and an electronic screen.

3. The welding station environment control device according to claim 2, characterized in that: the dust blowing mechanism comprises at least one wall-mounted electric fan fixed in the middle and upper segment of the height direction of the inner side of the fence. ​ ​ ​ ​ ​ ​ ​ ​

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