CN212987516U - A subregion allies oneself with accuse clean system for factory building dust is administered - Google Patents

Abstract

The utility model discloses a subarea joint control purification system for dust treatment of a factory building, which comprises a plurality of air treatment units, wherein the air treatment units correspond to each dust production area in the factory building; the air treatment unit comprises a dust removal unit, an air supply pipeline and an air return pipeline, wherein the air supply pipeline and the air return pipeline are respectively connected with the dust removal unit; the dust generating areas are provided with dust concentration sensors which are used as trigger signal units of the air processing units of the dust generating areas and are connected with the control system of the air processing units in a feedback mode, and the dust distribution conditions in the dust generating areas are monitored in real time, and the start and stop and variable-frequency operation of the dust removing units are coordinated by combining with a controller. By adopting the plurality of air processing units to control the whole workshop production area in different areas, the modularized arrangement can be realized, and the problem of high energy consumption during operation of part of the production workshop with an oversized space is solved.

Description

A subregion allies oneself with accuse clean system for factory building dust is administered

Technical Field

The utility model belongs to the technology is administered to the factory building dust, concretely relates to subregion allies oneself with accuse clean system for factory building dust is administered.

Background

Harmful substances in the form of gas and particles (including gas, smoke, dust, etc.) harmful to health are generated in industrial processes (such as welding, cutting, grinding, etc.). The harmful substances are dispersed in the air in the form of gaseous or tiny solid particles, which can cause harm to human bodies, eyes, organs and the like, and the dirty workshop environment can also cause the workers to be irritated and depressed, thus reducing the working efficiency.

The existing methods for treating welding fume include a local dust removal method and an integral dust removal method.

For the conditions of large welding smoke dust and good workshop tightness, an integral dust removal method is adopted, for example, an integral workshop dust removal system disclosed in the Chinese patent document with the application number of 200910043693.1, the integral treatment technology has a good control effect on the integral environment in a workshop, but when only partial areas of the workshop are produced, the integral treatment method still needs to perform ventilation and dust removal in the whole range, and the passive operation energy consumption is higher. Meanwhile, for an industrial factory building with an ultra-large space, the whole dust removal method is complex due to the large area of treatment, the energy consumption of a fan is relatively high due to long-distance air supply, and the system is not energy-saving enough.

For the situation that the welding workpiece is small and the welding position is relatively fixed, a local treatment method is adopted, for example, a welding fume purifier disclosed in the Chinese patent document with the application number of 201821576056.1, the local dust removal method can realize dust removal control on each production station, a pipeline system is relatively simple, the pressure loss of the system is small, but the local dust removal method is greatly influenced by factors such as the production process, the change of the production stations and the like. The local treatment method is more limited to operate under the conditions that the welding workpieces are large, the welding positions are not fixed, the welding quantity is large, and the welding area runs intermittently.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem be: the dust treatment difficult problem that the smoke and dust exists is produced to present workshop factory building multizone provides a subregion and allies oneself with accuse clean system.

The utility model discloses a following technical scheme realizes:

a subarea joint control purification system for dust treatment of a factory building comprises a plurality of air treatment units, wherein the air treatment units correspond to each dust production area in the factory building;

the air treatment unit comprises a dust removal unit, an air supply pipeline and an air return pipeline, wherein the air supply pipeline and the air return pipeline are respectively connected with the dust removal unit;

the dust generating areas are provided with dust concentration sensors, the dust concentration sensors are used as trigger signal units of the air processing units of the dust generating areas and are connected with the control system of the air processing units in a feedback mode, the dust distribution conditions in the dust generating areas are monitored in real time, and the start and stop and variable-frequency operation of the dust removing units are coordinated by combining with a controller.

In the technical scheme of the partitioned joint control purification system, the air supply pipeline is provided with a negative oxygen ion generation section for increasing negative oxygen ions for the air in the plant to ensure the requirement on the indoor air freshness.

In the technical scheme of the partitioned joint control purification system, the air supply outlets of the air supply pipeline are low-speed dispersion type air supply outlets and are arranged in working areas on two sides of a factory building, a side-supply layered air supply airflow organization form is formed, and the influence on the working area in the middle of the factory building is avoided.

In the technical scheme of the subarea joint control purification system, the air return opening is positioned at the top of the plant and faces to the ascending direction of the dust-containing hot plume in the dust-producing area, and the dust-containing hot plume in the ascending state is directly absorbed.

According to the technical scheme of the partitioned combined control purification system, the air return inlet is connected with the air return cover, and the air return cover can be arranged above the dust source to capture dust when the indoor dust yield is large and the indoor dust yield is distributed intensively, so that the dust capture effect of the air return cover is ensured.

In the utility model, the dust removing unit comprises a dust remover air supply section and a filtering dust removing section;

a circulating fan is arranged in the dust remover air supply section, the air outlet end of the circulating fan is provided with a dust remover air outlet, the dust remover air outlet is connected with an air supply pipeline, and the air inlet end of the circulating fan is butted with the filtering dust removal section;

the inside filter core that is equipped with of dust removal section filters, and the filter core adopts high efficiency filter material to carry out filtration purification to dirty gas, like the filter core of polytetrafluoroethylene filter media, keeps away from one side of circulating fan air inlet end and sets up the dust remover return air inlet, dust remover return air inlet and return air pipe connection.

In the technical scheme of the partition joint control purification system, a fresh air port is further formed in the air supply section of the dust remover, close to the air inlet end of the circulating fan, and the fresh air port is communicated with the outside of a plant through the fresh air port section and used for supplementing fresh air to the room, so that the positive pressure requirement of the fresh air fan is met.

In the technical scheme of the partition joint control purification system, an automatic ash cleaning device is arranged above the filter element of the filtering and dust removing section, and an ash collecting device is arranged at the bottom of the filter element.

In the technical scheme of the partition joint control purification system, the control system comprises a central control display screen and PLC controllers respectively corresponding to the air treatment units, the dust concentration sensor is connected with the signal input end of the PLC controllers in a feedback mode, and the signal output end of the PLC controllers is connected to the control valves of the air treatment units corresponding to the dust generation areas.

In the technical scheme of the partitioned joint control purification system, the control system further comprises HMI interaction modules corresponding to the PLC controllers, and the HMI interaction modules are connected with signal input ends of the PLC controllers.

The utility model discloses following beneficial effect has:

(1) the utility model discloses a subregion allies oneself with accuse clean system carries out regional control with whole workshop environment according to the technology production situation through a plurality of air treatment units, can not only realize the independent treatment of factory building bay, can also reach the treatment as required of different areas in the same bay, greatly reduced the passive running energy consumption in the centralized dust removal treatment mode;

(2) the air treatment unit treatment pipeline system is simple in arrangement, the system pressure loss is small, and the low-power circulating fan can meet the power requirement;

(3) the utility model arranges the return air inlet on the upper part of the workshop to directly suck the dust-containing hot plume in the ascending state, the upper return air form does not affect the production operation, the air supply outlet adopts a low-speed dispersive air supply outlet to directly supply fresh air to the personnel activity area, the low air age value of the air in the operation area is ensured, and the air speed of the operation area meets the low air speed requirement of the production welding process (the air supply mode and the air supply outlet are only for example illustration and are not limited, and the air supply outlet can also be set into different ventilation modes such as upper air supply trench return air and the like according to the requirement);

(4) the air treatment unit can realize the full circulation of air supply and return by using a single fan, the appearance size of the dust removal unit is optimized, the dust removal unit is arranged close to two sides of a workshop, and the occupied space is small;

(5) the air processing unit is provided with a fresh air port section and a negative oxygen ion generation section, fresh air and negative oxygen ions are sent to an indoor working area while dust is removed, air freshness in the working area is guaranteed, and comfort requirements of workers are fully considered;

(6) the dust removal filtering section of the air treatment unit adopts high-efficiency filtering materials, the cleanliness of indoor air can be well guaranteed, the automatic dust removal device arranged in the filtering dust removal section adopts an on-line dust removal mode, the dust removal is convenient and fast, the time is short, and the device is particularly suitable for occasions of continuous production;

(7) environmental zone control in the large-space factory building is achieved through centralized control and frequency conversion control, the indoor environment control mode that air is supplied according to needs is achieved to a great extent, control precision is high, passive operation energy consumption is reduced remarkably, overall operation cost is saved by about 20%, and engineering practicability is high.

To sum up, the utility model discloses an adopt a plurality of air treatment unit to carry out regional control of branch to whole workshop production region, air treatment unit pipeline layout is simple, can realize the modularization and arrange, high energy consumption problem when having solved the operation of super large space production factory building part region again simultaneously.

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Drawings

Fig. 1 is a schematic elevation view of a zoned-linkage-controlled purification system according to the first embodiment.

Fig. 2 is a schematic top view of a zoned-linkage-controlled purification system according to the first embodiment.

Fig. 3 is a schematic structural diagram of a dust removal unit in the first embodiment.

Fig. 4 is a schematic diagram of a control system according to a first embodiment.

Fig. 5 is a schematic elevation view of the zoned-linkage-controlled purification system of the second embodiment.

Fig. 6 is a schematic top view of the zoned-linkage-controlled purification system of the second embodiment.

Reference numbers in the figures: 1-an air supply outlet, 2-an air supply pipeline, 3-a fresh air outlet section, 4-a negative oxygen ion generation section, 5-a dust removal unit, 6-a dust-containing hot plume, 7-an air return pipeline, 8-a baffle, 9-an air return cover, 10-a factory building, 11-an air return inlet, 12-an air treatment unit, 13-a dust removal unit shell, 14-a circulating fan, 15-a dust removal device air outlet, 16-an automatic dust removal device, 17-a dust removal device air return inlet, 18-a filter element, 19-an ash collection device, 20-a dust removal device air supply section, 21-a filtering dust removal section, 30-a central control display screen, 31-HMI interactive module, 32-a PLC controller and 33-a dust concentration sensor.

Detailed Description

Example one

Referring to fig. 1 and 2, the partitioned linkage control purification system in the figure is the utility model discloses a specific implementation scheme, this embodiment with the inside a plurality of dust producing areas of dividing of factory building 10, every dust producing area sets up air handling unit 12, every air handling unit 12 can be jointly controlled and opened, also can open through manual control part or whole, carries out the partitioned linkage control to each dust producing area and purifies.

Specifically, the air processing unit comprises a dust removal unit 5, an air supply pipeline 2 and an air return pipeline 7, wherein the air supply pipeline 2 and the air return pipeline 7 are connected with the dust removal unit 5, the dust removal unit 5 is arranged inside a workshop to perform centralized processing on dust-containing gas in the workshop, one end of the air supply pipeline 2 is connected with an air supply outlet 1 arranged inside the workshop 10, the other end of the air supply pipeline is connected with the dust removal unit 5, the air supply pipeline 2 is used for orderly conveying clean air purified by the dust removal unit to the inside of the workshop, and a system of the air supply pipeline 2 can be arranged into different forms according to the specific; and one end of the air return pipeline 7 is connected to an air return port 11 arranged in a corresponding dust production area, and the other end of the air return pipeline is connected with the dust removal unit 5 and used for orderly recovering dust-containing air in the workshop to the dust removal unit 5 for dust removal and purification.

In this embodiment, return air inlet 11 sets up at factory building inner space top, set up at least one, still be equipped with return air cover 9 to the big and concentrated condition of distribution of indoor dust production and catch dusty air, return air cover 9 sets up towards the regional dusty hot plume ascending direction of producing dirt, the periphery sets up and separates fender 8, the improvement is to the concentrated collection effect of dusty hot plume, the globose dusty hot plume that is in the rising directly enters into and separates fender 8 and return air cover 9 inside and be absorbed by return air duct 7, the improvement catches dirt efficiency.

The air supply pipeline 2 is provided with a negative oxygen ion generation section 4, and negative oxygen ions are added while clean air is supplied into a factory building, so that the requirement on indoor air freshness is met. The air supply outlet 1 inside the factory building adopts a low-speed dispersion type air supply outlet, is arranged in the work areas on two sides of the factory building and is arranged close to the ground, a layered air supply airflow organization form of side air supply is formed, fresh air enters the inside of the factory building and cannot disturb rising dust-containing hot plumes, the trapping of dust-containing air is influenced, and different forms such as a shutter air port and a drum air port can also be adopted according to specific production processes and conditions in the workshop.

Referring to fig. 3 in combination, in the present embodiment, the dust removing unit 5 includes a dust remover air supply section 20 and a filtering dust removing section 21, the dust removing unit 5 adopts a vertical structure, the dust remover air supply section 20 and the filtering dust removing section 21 are arranged in the dust removing unit housing 13 from top to bottom, wherein a circulating fan 14 is arranged in the dust remover air supply section 20 to provide aerodynamic force for the whole dust removing unit and even for the air handling unit, a dust remover air outlet 15 is arranged on the dust removing unit housing 13 near the air outlet end of the circulating fan 14, the dust remover air outlet 15 is connected with the air supply pipeline 2, and the air inlet end of the circulating fan 14 is butted with the filtering dust removing section 21 in the dust removing unit housing; the dust removal section 21 mainly catches and filters dust in the dusty air current, make the cleanliness factor of indoor environment meet the demands, filter the inside filter core 18 that is equipped with of dust removal section 21, the filter core separates dust remover air supply section 20 and filtration dust removal section 21, filter core 18 adopts high efficiency filter material to carry out the dust removal purification to the dusty gas through the filter core, set up dust remover return air inlet 17 on keeping away from one side dust remover unit housing 13 of circulating fan air inlet end, dust remover return air inlet 17 is connected with return air pipeline 7.

In order to guarantee to supply and take a breath to the factory building inside, still be equipped with the fresh air inlet on the dust remover unit casing 13 that leans on circulating fan air inlet end on dust remover air supply section 20, the fresh air inlet passes through fresh air inlet section 3 and the outside intercommunication of factory building, fresh air inlet section 3 is used for gathering outdoor new trend and sends into indoorly, fresh air inlet section 3 department sets up the new trend governing valve, be used for adjusting the new trend proportion and guarantee the fresh requirement of indoor air, the dust remover unit is connected to 3 one ends in fresh air inlet section, one end communicates with each other with outdoor environment, one satisfies the new fan malleation requirement, and can supply new trend to the factory building indoor.

The dust remover unit 5 of this embodiment can carry out automatic deashing, is equipped with automatic ash removal device 16 above the inside filter core 18 of dust remover unit 5, and the bottom is equipped with collection ash device 19, and automatic ash removal device 16 adopts the blowback ash removal device, detects the pressure differential start blowback ash removal in filter core 18 both sides through the pressure differential switch, and collection ash device 19 adopts the ash bucket, collects the dust that the blowback got off on the filter core, and collection ash device 19 and dust removal filter segment 21 sealing connection do not leak the dust. The blowback ash removal device and ash bucket all belong to the dust remover and set up commonly, and this embodiment does not give consideration to its specific structure here.

Referring to fig. 4, the present embodiment further includes a control system for performing joint control on all the air processing units 12, and meanwhile, dust concentration sensors 33 are disposed in all the dust generating areas, and the dust concentration sensors 33 are used as trigger signal units of the air processing units in each dust generating area and are connected with the control system of the air processing units in a feedback manner. Specifically, the control system of this embodiment includes well accuse display screen 30 and corresponds each air handling unit's PLC controller 32 respectively, dust concentration sensor 33 and PLC controller 32's signal input part feedback connection, PLC controller 32's signal output part is connected to the control flap that corresponds the air handling unit in the dust production region, this control flap is dust collector 5's among the control air handling unit circulating fan, dust distribution situation in the air in each dust production region of real-time supervision through dust concentration sensor 33, feedback signal control coordinates the start-stop or the frequency conversion operation of each air handling unit's dust collector, in order to adapt to the regional air treatment of the dust production of different concentrations. In addition, in order to facilitate manual active control over each dust generating area, the control system of the embodiment further includes an HMI interaction module 31 corresponding to each PLC controller 32, the HMI interaction module 31 connects the central control display screen 30 and the signal input end of the PLC controller 32, and the HMI interaction module 31 can manually and actively send a control signal to the PLC controller 32 to actively adjust the corresponding air processing unit 12.

Example two

Referring to fig. 5 and fig. 6, the subregion coordinated control clean system in this embodiment does the utility model discloses a further concrete implementation scheme, the factory building inside of this embodiment produces the regional comparison of dirt and distributes more evenly, evenly falls into a plurality of blocks with the factory building inside and produces the regional back of dirt, this embodiment evenly lays return air duct 7 with air handling unit 12 at the factory building top to evenly set up a plurality of return air inlets 11 on return air duct 7, replace the return air cover in embodiment one through evenly arranged a plurality of return air inlets of arranging and carry out even suction to the regional ascending dust-laden title air current of producing dirt.

In the present embodiment, reference may be made to the first embodiment for other air supply ducts and the dust removing unit of the air processing unit 12, and repeated descriptions are not repeated herein.

The specific operation of the first and second embodiments will be described in detail below.

The dust removing unit 5, the negative oxygen ion generation section 4, the air supply pipeline 2, the air supply outlet 1, the factory building indoor environment, the air return inlet 11 or the air return cover 9 and the air return pipeline 7 of the air processing unit 12 form a circulating loop of dusty air flow together.

When a dust source in a factory building intensively emits a large amount of dust, as shown in fig. 1 and 5, dust-containing airflow generated by welding and other related process activities in each dust generating area in the factory building is gathered to the upper part of the factory building under the entrainment action of hot plumes and the pushing action of air supply to form a dust-containing hot plume 6, dust is collected through a return air cover 9 or a return air inlet 11 arranged above the dust source, and considering that the dust-containing hot plume 6 can be diffused outwards due to the entrainment action of the hot plume when moving upwards, in the first embodiment, the partition 8 is arranged around the return air cover 9 to ensure that the dust can be completely captured, and at least one return air inlet 11 is also arranged at the upper part of a public area outside the production area to ensure the airflow flow of the public area. The captured dusty airflow enters the return air inlet 17 of the dust remover along with the return air pipeline 7 and then enters the dust removal filtering section 21, and is separated from the airflow under the adsorption action of the high-efficiency filtering material of the filter element 18, so that the purification of the dusty airflow is realized. The filtered clean air flow enters the air supply section 20 of the dust remover, is mixed with the fresh air sucked by the fresh air inlet section 3 in the air supply section of the dust remover, and enters the air supply pipeline 2 under the action of the circulating fan 14. On the other hand, a large amount of negative oxygen ions generated by the negative oxygen ion generation section 4 also enter the air supply pipeline 2 to be mixed with the filtered air flow and then sent into the plant, so that the indoor dust-containing air flow is filtered and purified, and is sent to each production area through each air supply opening 1 distributed in the plant under the action of the circulating fan 14. In the dust removing machine set, the pressure of the dust adsorbed on the outer surface of the filter element 18 is too high due to too thick dust, when the pressure difference sensor of the automatic dust cleaning device 16 detects that the pressure difference on two sides of the filter element exceeds a set value, the dust cleaning function is started, and the adsorbed dust is separated from the filter element 18 under the back blowing of the compressed air of the automatic dust cleaning device 16 and is collected into the dust collecting device 19.

When the indoor dust that gives off of factory building is relatively more even, as shown in fig. 6, the embodiment two-pass collects dusty hot plume 6 through evenly arranging multiunit return air inlet 11 in factory building upper portion, and indoor dirty air current originally evenly sets up the return air inlet suction on upper portion under the holistic push-up effect of air supply this moment, the regional replacement ventilation effect of realization whole that can be better.

The cooperative regulation and control of the operation parameters and the operation mode of each air processing unit 12 are realized by a control system, so that the air flow in each control area of the workshop is dynamically balanced, regional air supply is performed in the production workshop as required, and the cooperative control principle is shown in fig. 4. The coordination control among all the areas is realized through the control valve of each area dust removing unit 5 and the dust concentration sensor 33, the dust concentration sensor 33 monitors the dust concentration in each area in real time, when the dust concentration in a certain area exceeds the standard once, the dust concentration sensor 33 sends a signal to the corresponding PLC 32, the PLC 32 receives the signal and controls the opening degree of the area dust removing unit 5 or the running frequency of the fan according to the dust concentration distribution interval to control the dust removing air volume of the area according to the programmed program. The dust concentration of each area and the corresponding unit operation condition can be displayed on a central control display screen through an interface of the HMI interaction module 31, and indoor personnel can also control the dust control condition of each area in the room manually through the display interface of the HMI interaction module 31. The control system of a single area is simple in structure, but the air flow in the whole control area can be dynamically balanced through the cooperative control of all the areas, and the passive operation energy consumption can be reduced to the lowest on the basis of ensuring the smoke and dust removal of the whole workshop.

The above embodiments are illustrative of the present invention, and not limiting to the present invention, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only illustrative of the specific working principle of the present invention, and without departing from the spirit and scope of the present invention, the present invention can also have various changes and modifications, which fall into the scope of the claims, and the scope of the claims is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a subregion allies oneself with accuse clean system for factory building dust is administered which characterized in that: the system comprises a plurality of air processing units, wherein the air processing units correspond to all dust producing areas in a plant;

the air treatment unit comprises a dust removal unit, an air supply pipeline and an air return pipeline, wherein the air supply pipeline and the air return pipeline are respectively connected with the dust removal unit;

the dust-producing areas are provided with dust concentration sensors, and the dust concentration sensors are used as trigger signal units of the air processing units of the dust-producing areas and are connected with the control systems of the air processing units in a feedback mode.

2. The zoning and joint control purification system for plant dust control of claim 1, which is characterized in that: and the air supply pipeline is provided with a negative oxygen ion generation section.

3. The subarea joint control purification system for plant dust control of claim 2, which is characterized in that: and the air supply outlet of the air supply pipeline is a dispersion type air supply outlet and is arranged in working areas on two sides of the factory building.

4. The zoning and joint control purification system for plant dust control of claim 1, which is characterized in that: the air return opening is positioned at the top of the plant and faces to the ascending direction of the dust-containing hot plume in the dust-producing area.

5. The system of claim 4, wherein the system comprises: and the air return inlet is connected with an air return cover.

6. The subarea joint control purification system for plant dust treatment according to any one of claims 1-5, characterized in that: the dust removal unit comprises a dust remover air supply section and a filtering dust removal section;

a circulating fan is arranged in the dust remover air supply section, the air outlet end of the circulating fan is provided with a dust remover air outlet, the dust remover air outlet is connected with an air supply pipeline, and the air inlet end of the circulating fan is butted with the filtering dust removal section;

the filter dust removal section is internally provided with a filter element, one side of the filter dust removal section, which is far away from the air inlet end of the circulating fan, is provided with a dust remover air return opening, and the dust remover air return opening is connected with an air return pipeline.

7. The system of claim 6, wherein the system comprises: and a fresh air port is also arranged at the air supply section of the dust remover, close to the air inlet end of the circulating fan, and is communicated with the outside of the plant through the fresh air port section.

8. The system of claim 6, wherein the system comprises: an automatic ash cleaning device is arranged above the filter element of the filtering and dust removing section, and an ash collecting device is arranged at the bottom of the filter element.

9. The zoning and joint control purification system for plant dust control of claim 1, which is characterized in that: the control system comprises a central control display screen and PLC controllers corresponding to the air processing units respectively, the dust concentration sensor is connected with the signal input end of the PLC controllers in a feedback mode, and the signal output end of the PLC controllers is connected to control valves of the air processing units corresponding to the dust production areas.

10. The system of claim 9, wherein the system comprises: the control system further comprises HMI interaction modules corresponding to the PLC controllers, and the HMI interaction modules are connected with the signal input ends of the PLC controllers.

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