CN110652820A - Novel welding workstation air exchange system - Google Patents

Abstract

The invention belongs to the technical field of automobile assembly equipment, and relates to a new type of ventilation system for welding workstations, which is composed of a fresh air part and a purified air part. , and fire prevention device. The eddy current filter device is composed of a box body, a wind deflector, a vortex plate, a wave-proof board, an anti-splash bending plate, and a water supply and drainage mechanism. The box body is arranged on one side of the workstation, and the wind deflector is arranged in the box. On the side adjacent to the smoke and dust collection device, the vortex plate and the wind deflector are relatively fixed at the bottom of the box, the anti-wave plate is hinged on the side of the vortex plate at the lower part of the box, and the anti-splashing bending plate is arranged on the wind deflector above the vortex plate. The water supply and drainage mechanism is arranged at the lower part of the box. The structure design of the invention is scientific and reasonable, can effectively eliminate harmful smoke and dust in the exhaust gas generated by the workstation, eliminate the hidden danger of fire, ensure the supply of fresh air, has the advantages of good dust removal effect, easy observation and maintenance, etc., and has high innovation.

Description

A new type of ventilation system for welding workstation

technical field

The invention belongs to the technical field of automobile assembly equipment, and particularly relates to a novel ventilation system for a welding workstation.

Background technique

Welding is an important machining technology, especially the processing and production of automobile production line equipment is more inseparable from welding. During the welding process, under the high temperature generated by the welding arc, a large amount of toxic fumes and fine dust particles will be generated around the arc area, and other high-risk and dirty waste gases generated by the auxiliary welding gas will also diffuse everywhere. If it leaks into the environment, it will seriously pollute the environment and affect the health of workers. The welding workstation that can provide a relatively closed space has become an important protective equipment for welding, and the ventilation system of the welding workstation has become an important part of the welding workstation. However, although the ventilation system of the previous welding workstation has two parts, physical filtration and water filtration, the structure of the water filtration part is not reasonable and perfect, and the harmful substances are not completely filtered in the water filtration stage, and the effect is not satisfactory. Despite the difficulty of subsequent physical filtration, there are still potential pollution hazards. At the same time, the ventilation system of the welding workstation in the past still has problems such as fire hazard caused by overheating of the physical filter material and excessive consumption of the filter material.

In response to the above problems, our company has independently developed a new type of welding workstation ventilation system, which improves the filtering effect of the water body filtration stage and better solves the problems of air pollution in the welding workstation.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies of the prior art, and to provide a new type of ventilation system for welding workstations that can effectively eliminate harmful components of smoke, provide clean fresh air, good dust removal effect, easy to observe and easy to maintain.

The present invention solves its technical problem and realizes through the following technical solutions:

A new type of ventilation system for welding workstations is characterized in that: it is composed of a fresh air part and a purified air part, and the purified air part is composed of a smoke and dust collection device, an eddy current filter device, a physical filter device, an induced draft device, and a fire prevention device. The filter device is arranged on one side of the workstation, the smoke and dust collection device is connected between the workstation and the vortex filter device, the air induction device is arranged on the vortex filter device and is connected with the fresh air part, the physical filter device is arranged in the upper part of the vortex filter device, and the fire protection device is installed In the air induction device, the eddy current filter device is composed of a box body, a wind deflector, a vortex plate, a wave-proof plate, an anti-splash bending plate, and a water supply and drainage mechanism. The box body is arranged on one side of the workstation, and the wind deflector is arranged on the box. On the side adjacent to the dust collection device in the body, the vortex plate and the wind deflector are relatively fixed at the bottom of the box, the anti-wave plate is hinged on the side of the vortex plate at the lower part of the box, and the anti-splash bending plate is arranged on the wind deflector above the vortex plate. , the water supply and drainage mechanism is arranged in the lower part of the box.

Moreover, the vortex plate is composed of an air inlet guide part, a vortex part, and an air outlet guide part, and the air inlet guide part, the vortex part, and the air outlet guide part are connected in sequence to form a whole.

Furthermore, the vortex portion and the wind deflector together form a vortex chamber.

Moreover, the air inlet guide portion is provided with water passage holes.

Moreover, the lower end of the air guide plate is provided with an arc-shaped air guide portion, and an air intake flue is formed between the air guide plate and the box body.

Moreover, the box body is provided with a liquid level observation window, an inspection window and an eddy current observation window, a sedimentation tank is made at the inner bottom of the box, and a bracket is provided at the outer bottom of the box.

Moreover, the water supply and drainage mechanism is composed of a water supply part and a drainage part, the water supply part is arranged in the middle part of the box body, and the drainage part is arranged at the bottom of the box body.

Moreover, the air induction device is composed of an induced draft fan and a purified gas output pipe. The induced draft fan is arranged on the top of the box body, and the purified gas pipe is connected between the induced draft fan and the fresh air input pipe.

Moreover, the fire prevention device is a set of smoke-sensing fire dampers, which are respectively arranged in the front-end pipeline and the rear-end pipeline of the induced draft fan.

Moreover, the fresh air part is composed of a fresh air input duct, a first air outlet, a second air outlet and a third air outlet. The fresh air input duct is arranged outside the workstation, and the first air outlet, the second air outlet and the third air outlet All are set in the workstation and communicated with the fresh air input pipeline. The advantages and beneficial effects of the present invention are:

1. The new welding workstation ventilation system can effectively eliminate harmful smoke and dust in the exhaust gas generated by the workstation, prevent environmental pollution, and ensure the fresh air supply of the workstation.

2. The ventilation system of the new welding workstation is equipped with an eddy current filter device, which has a good dust removal effect and can reduce the consumption of physical filter materials.

3. The ventilation system of the new welding workstation is provided with observation windows and inspection windows, which are convenient for observation and maintenance.

4. The ventilation system of the new welding workstation is equipped with a smoke-sensing fire damper, which can effectively eliminate fire hazards.

5. The design of the ventilation system of the new welding workstation is scientific and reasonable, which can effectively eliminate the harmful smoke and dust in the exhaust gas generated by the workstation, eliminate the hidden danger of fire, ensure the supply of fresh air, and has the advantages of good dust removal effect, easy observation and maintenance, etc. Highly innovative new welding station ventilation system.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structural representation (perspective view) of the present invention;

Fig. 3 is the enlarged view of A part of Fig. 1;

Figure 4 is a schematic diagram of the structure of the vortex plate;

FIG. 5 is a schematic view (perspective view) of the structure of the vortex plate.

1- Induced draft fan, 2- Box, 3- Dust collection cover, 4- Welding workstation, 5- Purified gas output pipe, 6- Bracket, 7- Drain, 8- Sedimentation tank, 9- Liquid level observation window, 10 - Wave board, 11- Vortex board. 12- Inspection window, 13- Physical filter device, 14- Anti-splash curved plate, 15- Smoke detector fire damper, 16- Air deflector, 17- Water supply department, 18- Eddy current observation window, 19- Fresh air input pipe, 20- The second air outlet, 21- the first air outlet, 22- the third air outlet, 23- the vortex chamber, 24- the air inlet flue, 25- the arc guide part, 26- the air inlet guide part, 27- the air inlet Water hole, 28-vortex part, 29-air outlet guide part.

Detailed ways

The present invention will be further described in detail below through specific examples. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

A new type of ventilation system for welding workstations is composed of fresh air part and purified air part. On the welding workstation 4 side, the fume and dust collection device is connected between the workstation and the eddy current filter device, the air induction device is arranged on the eddy current filter device and is connected with the fresh air part, the physical filter device is arranged in the upper part of the eddy current filter device, and the fire protection device is arranged in the upper part of the eddy current filter device. In the air induction device, the eddy current filter device is composed of a box body, a wind deflector, a vortex plate, a wave-proof plate, an anti-splash curved plate, and a water supply and drainage mechanism. The box body is arranged on one side of the workstation, and the wind deflector is arranged inside the box On the side adjacent to the fume collection device, the vortex plate and the wind deflector are relatively fixed on the bottom of the box, the wave-proof plate is hinged on the side of the vortex plate at the lower part of the box, and the anti-splashing bending plate is arranged on the wind deflector above the vortex plate. The water supply and drainage mechanism is arranged at the lower part of the box. The fresh air part is used to input fresh air in the natural environment into the welding workstation and can adjust the input opening, closing and air volume; the physical filter device is used to further filter harmful substances in the exhaust gas of the workstation; The gas collection of harmful substances is introduced into the eddy current filter device; the induced draft device is used to generate negative pressure to make the exhaust gas in the welding workstation enter the eddy current filter device, the physical filter device and the purified air into the workstation. The eddy current filter device is used to filter, clean and dissolve harmful gases through the water body and the eddy current generated under the action of the induced draft device to eliminate harmful substances.

The eddy current filter device is composed of a box body 2, an air deflector 16, a vortex plate 11, a wave-proof plate 10, an anti-splash bent plate 14, and a water supply and drainage mechanism. On the adjacent side of the collecting device, the vortex plate and the wind deflector are relatively fixed at the bottom of the box, the wave-proof plate is hinged on the side of the vortex plate at the lower part of the box, and the anti-splash bending plate is arranged on the wind deflector above the vortex plate for water supply and drainage. The mechanism is arranged at the lower part of the box body.

The vortex plate is composed of an air inlet guide part 26, a vortex part 28 and an air outlet guide part 29. The air inlet guide part, the vortex part and the air outlet guide part are connected in sequence to form a whole; the vortex part and the wind guide plate The arc-shaped diversion parts of the vortex flow chambers 23 are formed together. The air inlet guide portion is provided with a water hole 27 on it.

The lower end of the air deflector is provided with an arc-shaped air guiding portion 25, and an air intake flue 24 is formed between it and the box.

The box body is provided with a liquid level observation window 9, an inspection window 12, and a vortex observation window 18. The inner bottom is provided with a sedimentation tank 8, and the outer bottom is provided with a bracket 6. The solid dust particles in the smoke are filtered by the water body and deposited in the sedimentation tank. When the water body is too turbid and the sediment in the sedimentation tank is too much, the sewage and dirt can be discharged into the waste water collection bucket through the drain valve of the drainage department of the water supply and drainage mechanism. deal with it separately.

The water supply and drainage mechanism is composed of a water supply part 17 and a drainage part 7. The water supply part is arranged in the middle of the box body, and the drainage part is arranged at the bottom of the box body. The water supply part consists of water pump, water supply pipeline and valve; the drainage part consists of drain valve, pipeline and waste water collection barrel.

The soot collecting device is a soot collecting cover 3 .

The induced draft device is composed of an induced draft fan 1 and a purified gas output pipe 5. The induced draft fan is arranged on the top of the box, and the purified gas output pipe is connected between the induced draft fan and the fresh air input pipe.

The fire prevention device is a set of smoke-sensing fire dampers 15, which are respectively arranged in the front-end pipeline and the rear-end pipeline of the induced draft fan. Set up a smoke-sensing fire damper, which can automatically control the welding workstation and the system to stop when there are unexpected situations such as accidental ignition of the physical filter device, excessive temperature of the induced draft fan, fire alarm linkage, poor filtering effect, etc. work and sound the alarm.

The fresh air part consists of a fresh air input duct 19, a first air outlet 21, a second air outlet 20, and a third air outlet 22. The fresh air input duct is set outside the workstation, the first air outlet, the second air outlet, and the third air outlet. All are set in the workstation and communicated with the fresh air input pipeline. A fresh air fan is arranged on the fresh air input pipe. The first air outlet, the second air outlet and the third air outlet are provided with air volume control switches, which can control the air volume.

The working principle of the present invention is:

Before the welding work at the welding station, fill the box with an appropriate amount of clean water through the water supply part. At this time, the clean water fills the lower part of the box through the water hole on the air inlet and diversion part of the vortex plate, and the water level is about to make the wave breaker float. to close to the level.

When manual welding or ordinary welding is performed by robots, the fresh air device is turned on, and the air volume of the air outlet is adjusted to an appropriate amount; the induced air device can be turned on continuously or intermittently depending on the situation. When argon arc welding is performed, the fresh air device is closed or the air outlet is adjusted to a small amount of gas, so that the workstation becomes a relatively closed space; the induced draft device is closed, and after the welding is completed, the induced draft device is turned on according to the situation in the workstation.

After the fresh air device is turned on, the fresh air enters the workstation through the fresh air fan and the fresh air input pipe, and then enters the workstation through the first, second and third air outlets respectively; the air outlet can be opened and closed through the air outlet adjustment switch, and the air volume entering the workstation can be adjusted. .

After the induced draft device is turned on (adjust the air intake volume to the proper position), the induced draft fan will generate negative pressure on the suction side, namely the box, and on the exhaust side, namely the purified gas output pipe, to generate positive pressure to form air flow. The dirty air in the welding workstation, under the action of negative pressure, enters the air inlet flue in the box through the fume collection cover, enters the water body from the air inlet flue, and turns back upwards into the vortex chamber, where it forms simultaneously with the water in the first vortex chamber. In the eddy current state, it hits the anti-splash curved plate upwards, and is blocked by the anti-splash curved plate and then returns to the physical filter device, and then enters the fresh air input pipe through the induced draft fan and the purified gas output pipe, and then enters the welding station. When the dirty air enters the water body, some pollutants with large specific gravity and soluble in the water body will be retained and dissolved in the water, so that the dirty air can be purified for the first time; The purified air is washed and purified again; after the twice-purified air enters the physical filter device, the solid dust particles in the airflow are filtered again, so that the purified air is filtered and purified into a relatively clean purified gas, and the physical filter device will also Block the fine water droplets formed by splashing with the airflow so that they cannot enter the air induction device to avoid damage to the motor. The purified gas enters the fresh air duct through the induced draft fan and the purified gas output pipe, and then returns to the workstation through the air outlet. When the fresh air device is turned on, the purified air enters the fresh air duct and merges with the fresh air before entering the workstation together.

During the dust removal process, water will not enter the upper part of the box under the joint action of the anti-splash curved plate and the physical filter device, so as to avoid harming the motor and other components; under the action of the wave-proof plate hinged in the box, the formation of water can be prevented. larger waves. During the dust removal process, the working conditions and water quality conditions can also be observed and judged through the liquid level observation window and the eddy current observation window. During maintenance and inspection, the physical filter device is inspected, maintained and replaced through the inspection window.

Workstation refers to welding workstation.

Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims (10)

1. a novel welding workstation ventilation system is characterized in that: it is composed of a fresh air part and a purified air part, and the purified air part is composed of a smoke and dust collection device, an eddy current filter device, a physical filter device, an induced draft device, and a fire protection device. The eddy current filter device is arranged on one side of the workstation, the smoke and dust collection device is connected between the workstation and the eddy current filter device, the air induction device is arranged on the eddy current filter device and is connected with the fresh air part, and the physical filter device is arranged in the upper part of the vortex filter device, which is fireproof The device is installed in the air induction device. The eddy current filter device is composed of a box body, a wind deflector, a vortex plate, a wave-proof plate, an anti-splash bending plate, and a water supply and drainage mechanism. The box body is arranged on one side of the workstation, and the wind deflector is arranged On the side of the box adjacent to the smoke and dust collection device, the vortex plate and the wind deflector are relatively fixed at the bottom of the box, the anti-wave plate is hinged on the side of the vortex plate at the lower part of the box, and the anti-splash bending plate is arranged above the vortex plate to deflect the wind. On the board, the water supply and drainage mechanism is arranged at the lower part of the box. 2 . The new type of ventilation system for welding workstations according to claim 1 , wherein the vortex plate is composed of an air inlet guide part, a vortex part, and an air outlet guide part, and the air inlet guide part and the vortex part , The air outlet and guide parts are connected in sequence to form a whole. 3 . The new type of ventilation system for welding workstations according to claim 1 and claim 2 , wherein the vortex portion and the wind deflector together form a vortex chamber. 4 . 4 . The new type of ventilation system for welding workstations according to claim 2 , wherein the air inlet guide portion is provided with water holes. 5 . 5 . The new type of ventilation system for welding workstations according to claim 1 , wherein the lower end of the air guide plate is provided with an arc-shaped air guide portion, and an air intake flue is formed between the air guide plate and the box. 6 . 6. The novel welding workstation ventilation system according to claim 1, characterized in that: the box body is provided with a liquid level observation window, an inspection window, and a vortex observation window, and a sedimentation tank is made at the inner bottom thereof. The outer bottom is provided with a bracket. 7 . The ventilation system of the new welding workstation according to claim 1 , wherein the water supply and drainage mechanism is composed of a water supply part and a drainage part, the water supply part is arranged in the middle of the box body, and the drainage part is arranged at the bottom of the box body. 8 . 8. The novel welding workstation ventilation system according to claim 1, characterized in that: the air induction device is composed of an induced draft fan and a purified gas output pipe, the induced draft fan is arranged on the top of the box, and the purified gas pipe is connected to the lead Between the fan and the fresh air input duct. 9 . The novel welding workstation ventilation system according to claim 1 , wherein the fire prevention device is a set of smoke-sensing fire dampers, which are respectively arranged in the front and rear pipes of the induced draft fan. 10 . 10. The ventilation system for a new welding workstation according to claim 1, wherein the fresh air part is composed of a fresh air input duct, a first air outlet, a second air outlet, and a third air outlet, and the fresh air input duct is provided with Outside the workstation, the first air outlet, the second air outlet, and the third air outlet are all arranged in the workstation and communicated with the fresh air input pipe.

Images