CN216953399U

CN216953399U - Welding fume collecting and purifying system for tall and big factory building

Info

Publication number: CN216953399U
Application number: CN202121309259.6U
Authority: CN
Inventors: 高淑敏; 冯绮华; 廖检华; 郭炜麟
Original assignee: Guangzhou City Esen Environmental Protection Equipment Co ltd
Current assignee: Guangzhou City Esen Environmental Protection Equipment Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-07-12
Anticipated expiration: 2031-06-11

Abstract

The utility model discloses a welding fume collecting and purifying system for a tall factory building, which comprises a factory building, a carrying airflow module and an air suction purifying module, wherein the carrying airflow module and the air suction purifying module are oppositely arranged at the installation position of the air outlet ends of the carrying airflow modules at the two sides of the factory building, and are not lower than the installation position of the air inlet end of the air suction purifying module; according to the welding fume collecting and purifying system for the high and large factory buildings, the carrying airflow module is arranged at the space zone with the maximum welding fume concentration, so that the welding fume can be pushed to the air suction purifying module by the carrying airflow module, the air suction purifying module can suck and purify a large amount of retained welding fume and discharge the purified airflow attached to the ground of the factory buildings, and vertical wall attached jet flow dispersion air supply is formed, so that newly generated welding fume rises, and the influence of the flowing airflow on workers is effectively weakened; the system can effectively remove welding smoke in the factory building, ensures the health and the illumination quality of workers, effectively eliminates air pollution caused by welding smoke in the workshop, and avoids temperature change fluctuation in the factory building.

Description

Welding fume collecting and purifying system for tall and big factory building

Technical Field

The utility model relates to the field of environmental protection, in particular to a welding fume collecting and purifying system for a tall factory building.

Background

The size of a large welding workshop is generally 15-35 m in height, the transverse span is 20-45 m, the length reaches 50-150 m, and a single-layer or double-layer crane is installed. Because the welding workpiece is large and the welding position is not fixed, a local air suction purification device cannot be arranged. The comprehensive ventilation is that fans are arranged on two sides or the roof of a workshop or exhaust inlets of purifying equipment are arranged, the air change amount is determined by 3-10 times of air change times of the volume of the workshop, the air volume is large, the air suction characteristic is that the speed is attenuated to 1% within the range of 2-3 meters outside the exhaust inlets, and although the air change amount is large, welding fume dispersed in the workshop 3 meters outside the exhaust inlets is in a static retention state and cannot flow and be discharged.

Welding fume generated by high temperature of welding arc and surrounding gas are rapidly expanded, mixed and rapidly raised, and then settled under the action of gravity, a welding fume maximum concentration zone is formed at a certain height (7-25 m) of a workshop, micropressure is formed due to high fume density of the concentration zone, the rising of the subsequently generated welding fume is inhibited, the concentration of the welding fume at the lower part of the workshop concentration zone is seriously exceeded, the health of operators is greatly harmed, the illumination and welding quality is influenced, and the environmental pollution of the whole workshop is caused.

In winter in north, the temperature of a welding workshop is required to be not lower than 5 ℃ for ensuring the welding quality, and the air intake and exhaust amount is required to be further reduced or the self-circulation purification of workshop airflow is required to be formed for heating.

The air exhaust and air exchange system of the existing large welding workshop can not efficiently purify and discharge welding fume in the workshop, so that the welding fume is accumulated to form a welding fume zone, the concentration of the welding fume in the workshop is seriously exceeded, the health of workers is damaged, the lighting quality and the welding quality of the workshop can be influenced, and meanwhile, the body sensing temperature of a human body can be reduced by the existing air exhaust and air exchange system in winter in the north.

SUMMERY OF THE UTILITY MODEL

The welding fume collecting and purifying system for the tall and large factory buildings overcomes the defects of the prior art, and the welding fume collecting and purifying system for the tall and large factory buildings can effectively collect and purify the welding fume by pushing the suspended and static high-concentration belt airflow in the workshop to move through reasonable airflow organization, and effectively solves the problems of poor welding fume purifying effect and the like of the tall and large space.

In order to achieve the above purpose, the following scheme is provided:

a welding fume collecting and purifying system for a tall factory building comprises a factory building, a carrying airflow module and an air suction purifying module, wherein the carrying airflow module and the air suction purifying module are oppositely arranged on two sides of the factory building, the mounting position of an air outlet end of the carrying airflow module is not lower than that of an air inlet end of the air suction purifying module, the carrying airflow module comprises an airflow push carrier, a plurality of jet air ports and a plurality of air inlet pipes with different lengths, the airflow push carrier is mounted on one side in the factory building, the air inlet pipes are connected with the air inlet end of the airflow push carrier, the air outlet end of the airflow push carrier is connected with the jet air ports, the jet air ports are uniformly arranged on the same horizontal plane, the air suction purifying module comprises a plurality of air suction covers, an air suction pipe, a welding fume purifying module and a fan, and the air suction covers are arranged on the same horizontal plane, the mounting height of the air suction cover is not higher than that of the jet flow air port, the air suction cover is connected with one end of the air suction pipe, the other end of the air suction pipe is connected with the welding smoke purification module, the welding smoke purification module is connected with the air inlet end of the fan, the fan is located on one side of the factory building, which is far away from the carrying air flow module, the fan is mounted on the ground of the factory building, the air outlet end of the fan is close to the ground of the factory building, and the flowing direction of the air flow blown out by the fan is opposite to that of the air flow ejected by the air flow ejection carrier.

Furthermore, a plurality of air inlet branch pipes are arranged on the air inlet pipe.

Furthermore, the air suction cover and the jet flow air opening are arranged between 5 meters and 25 meters of the ground clearance of the factory building.

Furthermore, the end of giving vent to anger of fan is installed and is filtered and adsorption equipment.

Further, the welding fume purification module comprises a welding fume purifier or an electrostatic dust collector or a bag type dust collector or a filter cartridge dust collector.

Further, the airflow ejection carrier is installed on the side wall of the plant through the supporting platform.

The working principle and the advantages of the utility model are as follows: according to the welding fume collecting and purifying system for the high and large factory buildings, the carrying airflow module and the air suction purifying module are arranged at the space zone with the maximum welding fume concentration, so that the welding fume can be pushed to the air suction purifying module by the carrying airflow module, the air suction purifying module can suck and purify a large amount of retained welding fume and discharge the purified airflow attached to the ground of the factory buildings, vertical wall attached jet flow dispersed air supply is formed, newly generated welding fume is enabled to rise, and the influence of the flowing airflow on workers is effectively weakened; the system can effectively remove welding smoke in the factory building, guarantees the health and the illumination quality of workers, effectively purifies air in the factory building, effectively eliminates air pollution caused by welding smoke in the workshop, and avoids temperature change fluctuation in the factory building.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Reference numerals in the drawings of the specification include:

1. the device comprises a factory building, an air inlet pipe 2, an air inlet branch pipe 3, a supporting platform 4, an air flow pushing and jetting carrier 5, a jet flow air port 6, an air suction cover 7, an air suction pipe 8, a welding fume purification module 9 and a fan 10.

Detailed Description

The following is further detailed by the specific embodiments:

as shown in figure 1, the welding fume collecting and purifying system for the tall and big factory building comprises a factory building 1, a carrying airflow module and an air suction purifying module, wherein the carrying airflow module and the air suction purifying module are oppositely arranged on two sides of the factory building 1, the installation position of the air outlet end of the carrying airflow module is not lower than that of the air inlet end of the air suction purifying module, the carrying airflow module comprises an airflow push-jet carrier 5, a plurality of jet air ports 6 and a plurality of air inlet pipes 2 with different lengths, the airflow push-jet carrier 5 is arranged on one side in the factory building 1, the air inlet pipes 2 are connected with the air inlet end of the airflow push-jet carrier 5, the air outlet end of the airflow push-jet carrier 5 is connected with the jet air ports 6, the jet air ports 6 are uniformly arranged on the same horizontal plane, the air suction purifying module comprises a plurality of air suction hoods 7, air suction pipes 8, welding fume purifying modules 9 and a fan 10, the utility model discloses a welding fume purification device, including a plurality of suction hoods 7, welding fume purification module 10, fan 10, a plurality of suction hoods 7 are arranged on same horizontal plane, and the mounting height of suction hood 7 is not higher than the mounting height in efflux wind gap 6, and suction hood 7 is connected with the one end of breathing pipe 8, and the other end of breathing pipe 8 is connected with welding fume purification module 9, welds the inlet end that fume purification module 9 and fan 10 are connected, fan 10 is located one side of keeping away from the carrying air current module in factory building 1, fan 10 installs on factory building 1 subaerial and the end of giving vent to anger of fan 10 is close to factory building 1 ground, the air current flow direction that fan 10 blown out is opposite with the air current flow direction that air current jet carrier 5 jetted.

The workshop 1 is a welding workshop, workers weld workpieces in the workshop 1, and generated welding fume is accumulated in the workshop 1; the carrying airflow module is used for sucking part of welding fume and ejecting airflow to push the welding fume deposition layer to flow; the air suction purification module is used for absorbing and purifying welding fume; the carrier airflow module and the air suction purification module form an internal circulation system for welding fume purification, so that airflow in the workshop 1 circularly flows in a ring shape, the arrangement heights of the air outlet end of the carrier airflow module and the air inlet end of the air suction purification module can be adjusted according to actual use conditions, and the carrier airflow module and the air suction purification module are generally positioned on the same horizontal plane or the installation height of the air suction purification module is slightly lower than that of the carrier airflow module; the airflow ejection carrier 5 for carrying the airflow module is used for generating an ejection airflow to impact and push the welding fume deposition layer, which is a mature technology in the prior art and is not described herein again; the jet flow air ports 6 are arranged at the air outlet end of the air flow pushing carrier 5, the angles of the jet flow air ports 6 can be adjusted, the jet flow air ports 6 are round or flat, and the jet flow air ports 6 are arranged, so that pushing air flow generated by the air flow pushing carrier 5 can form flat carrying jet air flow, and the pushing motion of welding fume is facilitated; the installation height of the air suction cover 7 is lower than that of the jet flow tuyere 6, so that the welding fume is accurately gathered at the air suction cover 7 under the coordination of the self gravity and the driving force of the jet flow tuyere 6; the air inlet pipe 2 is used for air inlet of the air flow ejection carrier 5 and can absorb part of welding fume, and the air inlet pipes 2 with different lengths are used for absorbing the welding fume in areas with different heights of the plant 1; the air suction cover 7 is used for gathering welding fume, so that the welding fume can be absorbed by the air suction pipe 8; the air suction pipe 8 is used for connecting the welding fume purification module 9 with the air suction cover 7; the welding fume purification module 9 is used for purifying welding fume; the fan 10 is used for providing suction force of welding fume flow so that the welding fume can enter the welding fume purification module 9; the end of giving vent to anger of fan 10 is close to factory building 1 ground for fan 10's the air current of giving vent to anger forms the attached efflux of vertical wall and disperses the air supply, and attached efflux can form the air tide on workshop ground and get into workshop workman's breathing zone and effectively be utilized by operating personnel, and the sense of blowing of operating space in the workshop is eliminated to the return air like this, also avoids influencing gas shielded welding and administers, and the difference in temperature also can impel the welding to produce dusty air current and rise. .

As shown in fig. 1, a plurality of intake branches 3 are provided on the intake pipe 2.

Wherein, air intake branch 3 makes intake pipe 2 possess a plurality of air inlets for intake pipe 2 can absorb the not airflow of co-altitude in the factory building 1.

As shown in figure 1, the air suction hood 7 and the jet flow air opening 6 are arranged between 5 meters and 25 meters of the ground clearance of the plant 1.

Wherein, the cover 7 that induced drafts is installed in the position that welds the cigarette concentration highest in factory building 1 with efflux wind gap 6 for it is more high-efficient that the cigarette that welds in the factory building 1 is handled.

As shown in fig. 1, the air outlet end of the blower 10 is provided with a filtering and adsorbing device.

Wherein, fan 10 spun air current after filtration and adsorption equipment secondary treatment, its air of discharging is cleaner for air quality in the factory building 1 obtains further promotion, filters and adsorption equipment includes high efficiency filter and has the active carbon filter who adsorbs harmful gas molecule, and it is current mature technique, and no longer repeated here, also can use other filters that have similar filtering capability to replace filter equipment.

As shown in fig. 1, the welding fume purification module 9 includes a welding fume purifier or an electrostatic precipitator or a bag filter or a cartridge filter.

The welding fume purification module 9 may be a welding fume purifier, an electrostatic precipitator, a bag type precipitator, a filter cartridge precipitator, a combination of these apparatuses, or a similar replacement device, and the welding fume purifier, the electrostatic precipitator, the bag type precipitator, and the filter cartridge precipitator are all existing mature technologies for removing solid particles in welding fume.

As shown in fig. 1, the air jet carrier 5 is mounted on the side wall of the plant 1 via a support platform 4.

Wherein, the supporting platform 4 is used for installing the airflow ejection carrier 5, so that the installation of the airflow ejection carrier 5 is more stable.

The specific implementation process is as follows:

when the high and large factory building welding smoke collecting and purifying system works, a carrying airflow module and an air suction purifying module are started simultaneously, an airflow push carrier and a fan 10 are started simultaneously, the airflow push carrier 5 sucks partial airflow in the factory building 1 through an air inlet pipe 2 and an air inlet branch pipe 3 and sprays the partial airflow out of a jet flow air port 6, the airflow sprayed out of the jet flow air port 6 pushes an accumulation layer of welding smoke in the factory building 1, a large amount of welding smoke flows out of an air suction cover 7, meanwhile, the fan 10 sucks the welding smoke accumulated at the air suction cover 7 into the welding smoke purifying module 9 through the welding smoke purifying module 9 and an air suction pipe 8 for purification operation, the purified air is discharged by the fan 10, and the fan 10 is close to the ground of the factory building 1 for air exhaust; the welding fume circulating treatment in the plant 1 can be realized by circulating the processes.

When the factory building 1 is located in a region with higher air temperature, the welding fume purification module 9 and the fan 10 can be arranged outside the factory building 1, and purified air flow is discharged in the high air through a chimney; factory building 1 is located in the cold region, then need to weld cigarette purification module 9 and fan 10 and install in the workshop, the end of giving vent to anger of fan 10 is further selected to connect high-efficient activated carbon and is inhaled filter equipment and further purify the air current, 1 ground of factory building is pressed close to the clean air current after purifying and is sent out, form the attached efflux of perpendicular wall and disperse the air supply, attached efflux can form air tide on workshop ground and get into workshop workman's breathing zone and effectively be utilized by operating personnel, the sensation of blowing of interior operating space of workshop is eliminated to the return air like this, also avoid influencing gas shielded arc welding and administer, the difference in temperature also can make the welding produce dusty air current and rise.

The purification system does not interfere an operator, the dust concentration meter and the PLC which are reasonably arranged control the carrying air supply device to be intermittently opened and closed, the modular welding smoke purification device in the system is always in an opening working state, the comprehensive dust concentration in a workshop is ensured to be less than the specification in the standard GBZ2-2002, and secondary pollution to the environment can not be caused. The processed air quantity is only one fourth of the air quantity required by the traditional mixed air supply mode, the running energy consumption of the fan is only one half to one third of the mixed air supply mode, and the energy-saving effect of the system is obvious.

The number of the air flow pushing and ejecting carrier 5, the jet air port 6, the air suction cover 7, the welding fume purification module 9 and the fan 10 can be set according to the actual situation, and a regulating valve for regulating the air flow speed is also arranged at the jet air port 6; the height in welding dust concentration area and welding workpiece size, welding wire diameter, current strength etc. are different and have the difference in 1 interior factory building, for adapting to this altitude variation and 1 interior efflux wind gap 6 settings of factory building probably receive the workshop position influence to need finely tune after the installation, and 6 designs in efflux wind gap are portable type, can control and highly finely tune 6 directions in efflux wind gap from top to bottom, with the adjustment efflux direction.

According to the welding fume collecting and purifying system for the high and large factory building, the carrying airflow module and the suction purifying module are arranged at the space zone with the highest welding fume concentration, so that the welding fume can be pushed to the suction purifying module by the carrying airflow module, the suction purifying module can suck and purify a large amount of retained welding fume and discharge the purified airflow attached to the ground of the factory building 1, a vertical wall attached jet flow is formed for dispersing air supply, the newly generated welding fume is enabled to rise, and the influence of the flowing airflow on workers is effectively weakened; the system can effectively remove welding smoke in the workshop 1, guarantees the health and the illumination quality of workers, effectively purifies air in the workshop 1, effectively eliminates air pollution caused by welding smoke in a workshop, and avoids temperature change fluctuation in the workshop 1.

The foregoing are embodiments of the present invention and are presented for illustrative purposes only, and no attempt is made to show structural details of the utility model in more detail than is necessary for a fundamental understanding of the prior art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the present invention may be embodied in practice with the aid of the basic teaching of the utility model. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the applicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a high big factory building welds cigarette and collects clean system which characterized in that: the device comprises a factory building, a carrying airflow module and an air suction purification module, wherein the carrying airflow module and the air suction purification module are oppositely arranged at two sides of the factory building, the mounting position of an air outlet end of the carrying airflow module is not lower than that of an air inlet end of the air suction purification module, the carrying airflow module comprises an airflow ejection carrier, a plurality of jet flow air ports and a plurality of air inlet pipes with different lengths, the airflow ejection carrier is mounted at one side in the factory building, the air inlet pipes are connected with the air inlet end of the airflow ejection carrier, the air outlet end of the airflow ejection carrier is connected with the jet flow air ports, the jet flow air ports are uniformly arranged on the same horizontal plane, the air suction purification module comprises a plurality of air suction covers, an air suction pipe, a welding fume purification module and a fan, the air suction covers are arranged on the same horizontal plane, and the mounting height of the air suction covers is not higher than that of the jet flow air ports, the cover that induced drafts is connected with the one end of breathing pipe, and the other end of breathing pipe with weld the cigarette and purify the module and be connected, weld the cigarette and purify the inlet end of module and fan and be connected, the fan is located the one side of keeping away from the carrier gas flow module in the factory building, the fan is installed and is close to factory building ground at the subaerial and giving vent to anger end of fan of factory building, the air current flow direction that the fan blew out is opposite with the air current flow direction that the air current pushes away the carrier and erupts.

2. The welding fume collecting and purifying system for the tall building according to claim 1, which is characterized in that: and the air inlet pipe is provided with a plurality of air inlet branch pipes.

3. The welding fume collecting and purifying system for the tall building according to claim 1, which is characterized in that: the air suction cover and the jet flow air opening are arranged between 5 meters and 25 meters of the ground clearance of the factory building.

4. The welding fume collecting and purifying system for the tall building according to claim 1, which is characterized in that: and the air outlet end of the fan is provided with a filtering and adsorbing device.

5. The welding fume collecting and purifying system for the tall building according to claim 1, which is characterized in that: the welding fume purification module comprises a welding fume purifier or an electrostatic dust collector or a bag type dust collector or a filter cartridge dust collector.

6. The welding fume collecting and purifying system for the tall building according to claim 1, which is characterized in that: the airflow ejection carrier is installed on the side wall of the factory building through the supporting platform.