CN204996259U - Air exhaust device - Google Patents

Abstract

The utility model discloses an exhaust device, which comprises an air inlet for sucking exhaust gas, an adsorption tower for purifying exhaust gas, an air outlet pipe for discharging purified gas, and a high-pressure fan; wherein, the adsorption tower includes a tower Body, air inlet and air outlet, the air inlet is connected to the air inlet through the pipe, and the air outlet is respectively connected to the high-pressure fan and the air outlet pipe, and the filter screen and activated carbon are arranged in the tower body; the overall equipment layout of the utility model is reasonable, adopting The new internal structure of the adsorption tower makes the device have a strong ability to purify exhaust gas, which can ensure that the exhaust gas is discharged up to the standard, which is beneficial to the health of the workshop workers, and the exhaust air volume is large, and the maintenance and repair of the equipment are convenient.

Description

Exhaust device

technical field

The utility model relates to an exhaust device in the production process of a workshop.

Background technique

Toxic and harmful waste gas will be produced in the production process of many processes, such as printing process, etc. During the production process of these processes, a lot of waste gas will be generated. The waste gas contains compounds such as manganese, chromium, nickel, silicon, fluorine, nitrogen oxides and ozone. If effective ventilation measures are not taken in the production workshop, the physical and mental health of workshop workers will be seriously damaged, which may cause pneumoconiosis, manganese poisoning, metal fume fever and other diseases.

In order to effectively improve the air condition of the production workshop, make the work area meet the hygienic standard, and reduce the incidence of occupational diseases, it must be ventilated to remove and dilute harmful substances, and the following ventilation pipeline system design should be carried out.

The air suction volume of the existing exhaust device cannot meet the amount of waste gas generated during production, and the high-pressure fan of the existing exhaust device is placed at a high altitude, which makes repair and maintenance very inconvenient.

Utility model content

Purpose of the utility model: to solve the problems existing in the prior art, and to provide an exhaust device with a reasonable layout and which can be used to purify exhaust gas.

Technical solution: The exhaust device described in the utility model includes an air inlet for sucking exhaust gas, an adsorption tower for purifying exhaust gas, an air outlet pipe for discharging purified gas, and a high-pressure fan; wherein, the adsorption tower It includes a tower body, and air inlets and outlets located at both ends of the tower body, wherein the air inlet is connected to the air induction port through a pipe, and the air outlet is respectively connected to a high-pressure fan and an air outlet pipe, and a filter screen and activated carbon are arranged in the tower body.

The air inlet and air outlet are in the shape of a circular platform, which includes a large end and a small end; wherein, the large end of the air inlet is connected to one end of the tower body, the small end of the air inlet is connected to the pipeline, and the large end of the air outlet is connected to the other end of the tower body The small end of the air outlet is connected to the high-pressure fan and the air outlet pipe respectively.

The tower body is provided with several end-to-end partitions arranged in an S shape. The partitions include partitions for placing activated carbon and vertical plates for connecting adjacent partitions. The waste gas entering the tower is sequentially After passing through the screen and activated carbon, the gas purified by activated carbon is discharged through the small end of the air outlet.

The spacer is arranged horizontally, and the spacer arranged horizontally is more stable when the activated carbon is placed.

There are 3-6 nets, preferably 4 in the present invention.

There is a filter screen inside the tower near the air inlet. The filter screen has the characteristics of corrosion resistance and oxidation resistance, and can be used to filter out larger dust particles.

There are several air-introducing outlets arranged side by side on the pipeline, and the number of air-introducing outlets can be controlled according to the total amount of waste gas to be treated in the workshop.

The distance between the adjacent air inlets is no more than 5cm, which can absorb the exhaust gas to the greatest extent without omission.

The lower end of the high-pressure fan is provided with a fan bracket, which plays the role of fixing the motor.

Beneficial effects: Compared with the prior art, the utility model has the advantages that: the device extracts waste gas through a high-pressure fan, and the waste gas enters the adsorption tower through the air inlet and the pipeline, and the workshop waste gas can be purified through the filter screen and activated carbon in the adsorption tower, which is beneficial The health of the workers in the workshop; secondly, the structural design of the adsorption tower can handle the exhaust gas generated during the process to the greatest extent; in addition, the number of air inlets can be designed according to the total amount of exhaust gas to be processed in the workshop, and the exhaust efficiency is greatly improved. improve.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the structure inside the adsorption tower in the utility model.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, further illustrate the utility model.

As shown in Figure 1-2, the described air exhaust device includes an air introduction port 1, an adsorption tower 2, a pipeline 5, an air outlet pipe 3 and a high-pressure fan 4, the above-mentioned air introduction port 1 is used for sucking exhaust gas, and the adsorption tower 2 is used for To purify the exhaust gas, the pipeline 5 is used to transmit the exhaust gas inhaled by the air inlet 1 to the adsorption tower 2, and the air outlet pipe 3 and the high-pressure fan 4 are used to discharge the purified gas; wherein, a section of the pipeline 3 is connected to five air inlets 1, of which An air introduction port 1 is located at the end of one side of the pipeline 3 and communicates with the port on this side. The distance between adjacent air introduction ports 1 is at most 5 cm, and the closer the distance is, the air introduction port 1 can suck exhaust gas to the greatest extent. When inhaling exhaust gas, the least omission or no omission can be achieved. The air introduction port 1 is funnel-shaped, and the suction port of the air introduction port 1 is downward, and the diameter of the air suction port is larger than the diameter of the connection with the pipe 5; the other end of the pipe 5 is connected to the adsorption tower. The air inlet 21 on one side is connected, and the adsorption tower 2 includes a tower body 20, an air inlet 21 and an air outlet 22. The air inlet 21 and the air outlet 22 are in the shape of a circular table, which includes a large end and a small end; The setting of the end is to match the layout of the overall structure, and the small end matches the diameter of the pipeline, wherein the large end of the air inlet 21 is connected with one end of the tower body 20, the small end of the air inlet 21 is connected with the pipeline 5, and the large end of the air outlet 22 is connected with the tower body. The other end of body 20 is connected, and the small ends of air outlet 22 are respectively connected

The high-pressure fan 4 and the air outlet pipe 3 are equipped with a filter screen 23 inside the tower body 20, which can initially filter out mechanical impurities and larger dust particles. On the other hand, the filtering area of the filter screen 23 can be designed according to the air volume that needs to be processed. The inside of the adsorption tower 2 is also provided with activated carbon 24. At the air outlet 22 of the adsorption tower 2, a high-pressure blower 4 is also connected, and the lower end of the high-pressure blower 4 is provided with a fan support 5. , the upper end is provided with an air outlet pipe 3, under the operation of the high-pressure fan 4, based on the effect of centrifugal force, the wind vane promotes the exhaust gas purified by the adsorption tower 2 to move outward, and is discharged from the upper end of the air outlet pipe 3, wherein a part of the pipe 5 The wall is placed on the roof 10, and the adsorption tower 2 connected to the pipeline 3 and the high-pressure blower 4 connected to the adsorption tower 2 are all placed on the roof 10, which is convenient for maintenance and inspection.

It can be seen from Figure 2 that the exhaust gas enters the tower body 20 from the air inlet 21, and a certain air flow will be formed at the air inlet 21, so that the exhaust gas passes through the filter screen 23 in a divergent form, and initially filters out mechanical impurities and larger dust particles. One side of filter screen 23 is provided with several road end-to-end, S-shaped partitions arranged, partitions include partitions and vertical plates, the utility model is preferably used to place the partitions for activated carbon 24 to be horizontal, and the partitions have Four, the partitions are parallel to each other, the vertical boards used to connect adjacent partitions are vertically arranged with the partitions, there are five vertical boards, first the first vertical board is vertically arranged inside the tower body and one side is connected to the tower body The top is connected, the other side of the first vertical board is connected to one side of the horizontally arranged first partition, and the other side of the first partition is vertically connected to the second vertical board, and so on. Finally, the vertically arranged fifth vertical board and The bottom of the tower body is connected, and after the exhaust gas passes through the filter screen 23, due to the blocking of the vertical plate, the exhaust gas enters the activated carbon 24 through the gap between the adjacent meshes that are not blocked by the vertical plate. Contact with activated carbon 24 to improve the adsorption efficiency, and the gas purified by activated carbon 24 is discharged through the small end of the air outlet 22; in contrast, without using several end-to-end separators with an S-shaped structure, the air is more exposed to air when it enters The active carbon 24 of middle part, the active carbon 24 of two parts up and down can't utilize better.

Working principle: Place the air inlet 1 above the printing machine 11 with a certain distance. When the printing press is working, the exhaust gas is continuously sucked into the pipe 5 through the air inlet 1 with a large air suction port. The air inlet 21 enters the adsorption tower 2, and the larger dust particles are filtered out by the filter screen 23, and then enters the adsorption stage of the activated carbon 24, and finally the internal gas pressure is increased by the high-pressure fan 4, and the purified gas is discharged through the air outlet pipe 3.

Claims (9)

1. an air exhausting device, is characterized in that: comprise the air-vent (1) for sucking waste gas, for the adsorption tower (2) of purifying exhaust air, for discharging discharge pipe (3) and the high pressure positive blower (4) of the rear gas of purification; Wherein, described adsorption tower (2) comprises tower body (20) and is positioned at air intake vent (21) and the air outlet (22) at tower body (20) two ends, wherein, this air intake vent (21) is connected with air-vent (1) by pipeline (5), air outlet (22) connects high pressure positive blower (4) and discharge pipe (3) respectively, is provided with active carbon (24) in tower body (20).

2. air exhausting device according to claim 1, is characterized in that: described air intake vent (21) and air outlet (22) are truncated conical shape, and it comprises one and holds greatly and a small end; Wherein, air intake vent (21) greatly end is connected with tower body (20) one end, air intake vent (21) small end is connected with pipeline, and air outlet (22) greatly end is connected with tower body (20) other end, and air outlet (22) small end connects high pressure positive blower (4) and discharge pipe (3) respectively.

3. air exhausting device according to claim 2, it is characterized in that: in described tower body (20), be provided with that some roads join end to end, the dividing plate of S-type arrangement, described dividing plate comprises for placing the filter of active carbon (24) and the riser for being connected adjacent filter, enter waste gas in tower body successively through filter and active carbon (24), discharged by air outlet (22) small end through active carbon (24) purified gas.

4. air exhausting device according to claim 3, is characterized in that: described filter is horizontally disposed with.

5. the air exhausting device according to claim 3 or 4, is characterized in that: described filter is 3-6.

6. air exhausting device according to claim 1, is characterized in that: be provided with screen pack (20) near the tower body inside of air intake vent (21) side.

7. air exhausting device according to claim 1, is characterized in that: described air-vent (1) has several, is disposed in parallel on pipeline (5).

8. air exhausting device according to claim 7, is characterized in that: the distance between adjacent described air-vent (1) is not more than 5cm.

9. air exhausting device according to claim 1, is characterized in that: described high pressure positive blower (4) lower end is provided with fan supporter (6).