CN219518325U - Organic waste gas purifying device with long service life and low flow resistance - Google Patents

Abstract

The utility model discloses an organic waste gas purifying device with long service life and low flow resistance, and relates to the field of purification of exhaust systems of nuclear power environmental laboratories. The utility model designs the active carbon adsorption units which are arranged in a vertically parallel and spaced layered way and internally adopt the folded carbon bed structure, can uniformly disperse and fully adsorb and purify harmful substances such as aerosol, acid mist, nitrogen oxides, VOCs and the like in the waste gas, increases the area of an air inlet and outlet surface, reduces the stacking thickness of active carbon in a ventilation section, greatly reduces the running resistance of the active carbon adsorption units and reduces the later running cost of the system; the pre-filter is arranged at the upstream of the activated carbon adsorption unit, so that impurities such as tar, dust and the like in waste gas can be effectively removed, and the service lives of the activated carbon adsorption unit and the pre-filter are greatly prolonged; the utility model is provided with the post filter at the downstream of the activated carbon adsorption unit, so that the dust content in exhaust air can be effectively reduced, and the safe discharge is realized.

Description

Organic waste gas purifying device with long service life and low flow resistance

Technical Field

The utility model relates to the technical field of exhaust system purification equipment in places such as nuclear power environmental laboratories, front edge stations, chemical libraries and the like, in particular to an organic waste gas purification device with long service life and low flow resistance.

Background

Because the nuclear power plant has the need of monitoring the surrounding environment, a nuclear power environment laboratory and a front station need to burn, extract and detect samples taken from the periphery of the nuclear power plant, and a small amount of harmful gases such as aerosol, acid mist, nitrogen oxides, VOCs and the like can be generated in the process. Meanwhile, a small amount of acid mist and the like can be generated in the chemical warehouse of the nuclear power plant during temporary storage of equipment.

Along with the increasing requirements of gas emission standards, the existing ventilation and filtration waste gas systems of environmental laboratories, front edge stations, chemical libraries and the like of the nuclear power plants cannot meet the related waste gas emission requirements, and an adsorption purification treatment unit capable of treating aerosol, acid mist, nitrogen oxides, VOCs and the like, namely an organic waste gas purification device, needs to be additionally arranged in the existing ventilation and filtration waste gas systems.

However, no special purification device is designed for the occasions in the market at present, and the conventional civil purification device does not meet the exhaust emission requirements of environmental laboratories, front edge stations, organic waste libraries and the like. The specific defects are as follows: impurities such as tar, dust and the like in the waste gas can be attached to the surface of the activated carbon adsorbent, so that the adsorption effect of the activated carbon is greatly reduced, and the service life of an activated carbon adsorption unit is also relatively low; the resistance of the activated carbon adsorption unit is high, a fan with a high pressure head is needed to be matched, and the later operation cost of the system is high.

Disclosure of Invention

The utility model aims at the defects of the prior art and provides the organic waste gas purifying device with long service life and low flow resistance. The utility model can uniformly disperse and fully adsorb and purify harmful substances such as aerosol, acid mist, nitrogen oxides, VOCs and the like in the waste gas, and the folding carbon bed structure of the active carbon adsorption unit also increases the area of the air inlet and outlet surfaces, reduces the stacking thickness of the active carbon in the ventilation section of the active carbon adsorption unit, greatly reduces the running resistance of the active carbon adsorption unit and reduces the running cost of the system in the later period; meanwhile, through unified upstream filtering of the pre-filter, impurities such as tar and dust in the waste gas can be effectively removed, the influence of the tar and the dust on the operation life of the activated carbon adsorption unit is reduced, and the operation life of the activated carbon adsorption unit are greatly prolonged; finally, through unified downstream filtration of the post filter, active carbon dust in exhaust air can be filtered, the dust content in exhaust air can be effectively reduced, and safe emission is realized.

The aim of the utility model can be achieved by the following technical measures:

the organic waste gas purification device with long service life and low flow resistance comprises a shell (the shell is a mounting cavity provided by the device, and the shell is matched with a folded plate to form an air flow channel inside the device), active carbon adsorption units which are arranged in an inner cavity of the shell in a front-back horizontal drawing mode and are arranged in an upper-lower parallel interval layering mode (the active carbon adsorption units can uniformly and fully adsorb and purify aerosol, acid mist, nitrogen oxides, VOCs and the like, the active carbon adsorption units are arranged in a spaced and dispersed mode, the waste gas is favorably split and harmful substances such as aerosol, acid mist, nitrogen oxides and VOCs in the waste gas are uniformly adsorbed and purified, the quantity of the active carbon adsorption units can be designed according to the requirement), a front filter which is arranged between the active carbon adsorption units and an air inlet joint of the shell in a front-back horizontal drawing mode is arranged (the front filter is arranged at the upstream of the active carbon adsorption units, so that impurities such as tar, dust and the like in the waste gas can be filtered, the influence of the tar and the dust on the active carbon adsorption units can be greatly improved, the active carbon adsorption units can be uniformly adsorbed and the service life of the active carbon adsorption units can be greatly improved, the active carbon adsorption units can be arranged between the front-back horizontal drawing mode and the active carbon adsorption units, the front-back filter is arranged between the active carbon adsorption units and the air inlet filter and the air outlet filter, and the front filter can be arranged at the back filter and the air outlet filter; the active carbon adsorption unit adopts a folding carbon bed structure with a plurality of air inlet channels and air outlet channels reserved in the inside uniformly (the area of an air inlet and outlet surface is increased, the stacking thickness of active carbon in a ventilation section of the active carbon adsorption unit is reduced, the running resistance of the active carbon adsorption unit is greatly reduced, and the later running cost of the system is reduced); the air flow sequentially flows through the shell air inlet connector, the pre-filter, the F-shaped dispersing flow channel, the active carbon adsorption unit, the inverted F-shaped converging flow channel, the post-filter and the shell air outlet connector in the purifying device to form an air flow channel (the air flow enters the purifying device through the shell air inlet connector and is filtered upstream uniformly through the pre-filter, firstly, impurities such as tar and dust in waste gas are removed, the influence of the tar and the dust on the service life of the active carbon adsorption unit is reduced, then the air flow is split along the F-shaped dispersing flow channel, so that each active carbon adsorption unit on the upper layer and the lower layer is uniformly dispersed and fully adsorbs and purifies harmful substances such as aerosol, acid mist, nitrogen oxides and VOCs in the waste gas, the air flow after being adsorbed by the active carbon adsorption unit is converged into the inverted F-shaped converging flow channel, the converged air flow passes through the post-filter to uniformly remove dust from the active carbon dust in the exhaust, the active carbon dust in the exhaust is filtered, the dust in the exhaust is reduced, and finally the dust in the exhaust is discharged to the atmosphere through the air outlet connector.

The drawing grooves for installing the pre-filter, the activated carbon adsorption unit and the post-filter are formed by buckling folded plates vertically fixed on the inner surface of the rear wall of the shell (the pre-filter, the activated carbon adsorption unit and the post-filter are embedded in the corresponding drawing grooves respectively, so that the pre-filter, the activated carbon adsorption unit and the post-filter can be quickly installed or detached in a drawing manner; the upper and lower folded plates for installing the pre-filter are simultaneously and epitaxially fixed with the inner surface of the front wall of the shell (so that the air flow entering the air conditioner through the air inlet joint of the shell can be filtered upstream uniformly through the pre-filter in advance and then is further separated, so that impurities such as tar and dust in waste gas can be removed firstly, the influence of the tar and the dust on the service life of the activated carbon adsorption unit is reduced), and the upper and lower folded plates for installing the post-filter are simultaneously and epitaxially fixed with the inner surface of the rear wall of the shell (so that the air flow converged into the inverted F-shaped converging flow passage after the adsorption treatment is finished is discharged to the atmosphere together through the air outlet joint of the shell after being filtered through the uniform downstream dust removal of the activated carbon dust in exhaust air through the post-filter); the far right end folded plate for installing the first layer of activated carbon adsorption unit is simultaneously and epitaxially fixed with the inner surface of the top wall of the shell, the far left end folded plate for installing the first layer of activated carbon adsorption unit and the second layer of activated carbon adsorption unit is connected into a whole, the far right end folded plate for installing the second layer of activated carbon adsorption unit and the third layer of activated carbon adsorption unit is connected into a whole, and the far left end folded plate for installing the third layer of activated carbon adsorption unit is simultaneously and epitaxially fixed with the inner surface of the bottom wall of the shell (the folded plate is matched with the shell to form an F-shaped dispersing flow channel and an inverted F-shaped converging flow channel, so that the waste gas is conveniently split and harmful substances such as aerosol, acid mist, nitrogen oxides, VOCs and the like in the waste gas are uniformly adsorbed and purified).

The design principle of the utility model is as follows:

the utility model designs an active carbon adsorption unit which is arranged in an upper-lower parallel interval layering way and adopts a folding carbon bed structure in the inner cavity of a shell, meanwhile, a front filter is arranged at the upstream of the active carbon adsorption unit, a rear filter is arranged at the downstream of the active carbon adsorption unit, and the shell and a folded plate are matched to form an air flow channel in the utility model, namely a shell air inlet joint, a front filter, an F-shaped dispersing runner, an active carbon adsorption unit, an inverted F-shaped converging runner, a rear filter and a shell air outlet joint, through which air flows in turn in a purifying device. The air flow entering the utility model through the shell air inlet connector is filtered upstream in advance through the preposed filter, so that the impurities such as tar and dust in the waste gas can be effectively removed, the influence of the tar and the dust on the operation life of the activated carbon adsorption unit is reduced, and the operation life of the activated carbon adsorption unit and the utility model is greatly prolonged; the airflow is split along the F-shaped dispersing flow passage, so that each active carbon adsorption unit on the upper layer and the lower layer is convenient to uniformly disperse and fully adsorb and purify harmful substances such as aerosol, acid mist, nitrogen oxides, VOCs and the like in the waste gas, a folding carbon bed structure with a plurality of air inlet channels and air outlet channels uniformly reserved is adopted in the adsorption unit, the area of an air inlet surface and an air outlet surface is increased, the stacking thickness of active carbon adsorption units in a ventilation section is reduced, the running resistance of the active carbon adsorption units is greatly reduced, and the later running cost of a system is reduced; after the airflow after being adsorbed by the activated carbon adsorption unit is converged into the inverted F-shaped converging flow passage, the activated carbon dust in the exhaust air is subjected to uniform downstream dust removal and filtration through a rear filter, namely the activated carbon dust in the exhaust air is filtered, so that the dust content in the exhaust air can be effectively reduced; finally, the air is safely discharged into the atmosphere through the air outlet joint of the shell.

The beneficial technical effects of the utility model are as follows:

the utility model can uniformly disperse and fully adsorb and purify harmful substances such as aerosol, acid mist, nitrogen oxides, VOCs and the like in the waste gas, and the folding carbon bed structure of the active carbon adsorption unit also increases the area of the air inlet and outlet surfaces, reduces the stacking thickness of the active carbon in the ventilation section of the active carbon adsorption unit, greatly reduces the running resistance of the active carbon adsorption unit and reduces the running cost of the system in the later period; meanwhile, through unified upstream filtering of the pre-filter, impurities such as tar and dust in the waste gas can be effectively removed, the influence of the tar and the dust on the operation life of the activated carbon adsorption unit is reduced, and the operation life of the activated carbon adsorption unit are greatly prolonged; finally, through unified downstream filtration of the post filter, active carbon dust in exhaust air can be filtered, the dust content in exhaust air can be effectively reduced, and safe emission is realized.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

FIG. 2 is a schematic view of the structure of the gas flow channel in the present utility model.

Fig. 3 is a schematic structural view of a casing according to the present utility model.

FIG. 4 is an internal schematic view of a single activated carbon adsorption unit in accordance with the present utility model.

Part number description in the figures: 1. the device comprises a shell, 1-1, a shell air inlet connector, 1-2, an F-shaped dispersing runner, 1-3, an inverted F-shaped converging runner, 1-4, a shell air outlet connector, 2, a pre-filter, 3, an activated carbon adsorption unit, 3-1, an air inlet channel, 3-2, an air outlet channel, 3-3, activated carbon, 4, a post-filter, 5 and a folded plate.

Detailed Description

The utility model will be further described with reference to the accompanying drawings:

as shown in fig. 1 to 4, an organic waste gas purifying apparatus of the present utility model having a long operation life and a low flow resistance comprises a housing 1 (the housing 1 is an installation cavity provided by the present utility model; meanwhile, the shell 1 is matched with the folded plates 5 to form an air flow channel in the utility model), the front-back horizontal drawing type active carbon adsorption units 3 are arranged in the inner cavity of the shell and are arranged in an upper-lower parallel and spaced layering way (the active carbon adsorption units 3 can uniformly and fully adsorb and purify aerosol, acid mist, nitrogen oxides, VOCs and the like, the active carbon adsorption units 3 are arranged in a spaced dispersing way, which is beneficial to the diversion of waste gas and the uniform adsorption and purification of harmful substances such as aerosol, acid mist, nitrogen oxides, VOCs and the like in the waste gas, the number of the active carbon adsorption units 3 can be designed according to the requirement), the front-back horizontal drawing type front-back filter 2 is arranged between the active carbon adsorption units 3 and the shell air inlet joint 1-1 (the front-back horizontal drawing type front-back filter 2 is arranged at the upstream of the active carbon adsorption units 3 and can filter tar, dust and other impurities in the waste gas, so that the influence of tar, dust and the like on the operation life of the active carbon adsorption units 3 is reduced, the operation life of the active carbon adsorption units 3 is greatly prolonged, the operation life of the active carbon adsorption units is greatly prolonged, the active carbon adsorption units 3 can be arranged between the active carbon adsorption units 3 and the shell air outlet joints 1-4, the front-back horizontal drawing type front-filter 2 is arranged between the active carbon adsorption units, the front-back horizontal filter 2 is arranged at the front-back horizontal filter 2, the front-back horizontal filter and the front filter 2, and the front horizontal filter is arranged and the front horizontal filter and the front filter; the active carbon adsorption unit 3 adopts a folding carbon bed structure in which a plurality of air inlet channels 3-1 and air outlet channels 3-2 are uniformly reserved in the inside (the area of an air inlet surface and an air outlet surface is increased, the stacking thickness of the active carbon 3-3 in the ventilation section of the active carbon adsorption unit 3 is reduced, the running resistance of the active carbon adsorption unit 3 is greatly reduced, and the later running cost of a system is reduced); the air flows sequentially flow through a shell air inlet joint 1-1, a pre-filter 2, an F-shaped dispersing flow channel 1-2, an activated carbon adsorption unit 3, an inverted F-shaped converging flow channel 1-3, a post-filter 4 and a shell air outlet joint 1-4 in the purifying device to form an air flow channel (the air flows enter the purifying device through the shell air inlet joint 1-1 and are filtered upstream in advance through the pre-filter 2, firstly, impurities such as tar and dust in waste gas are removed, the influence of the tar and the dust on the service life of the activated carbon adsorption unit 3 is reduced, then the air flows are split along the F-shaped dispersing flow channel 1-2, so that each activated carbon adsorption unit 3 on the upper layer and the lower layer can be uniformly dispersed and can fully adsorb and purify harmful substances such as aerosol, acid mist, nitrogen oxides and VOCs in the waste gas, the air flows after being adsorbed and treated by the activated carbon adsorption unit 3 are converged into the inverted F-shaped converging flow channel 1-3, the converged air flows are filtered through the post-filter 4 to uniformly remove dust in the downstream of the air in the air exhaust, so that the content of the activated carbon dust in the air exhaust is reduced, and finally the dust in the air exhaust is discharged to the air exhaust joint through the shell air outlet 1-4.

The drawing grooves for installing the pre-filter 2, the activated carbon adsorption unit 3 and the post-filter 4 are formed by buckling the folded plates 5 vertically fixed on the inner surface of the rear wall of the shell (the pre-filter 2, the activated carbon adsorption unit 3 and the post-filter 4 are embedded in the corresponding drawing grooves respectively, so that the pre-filter 2, the activated carbon adsorption unit 3 and the post-filter 4 can be quickly installed or detached in a drawing manner; the upper and lower folded plates used for installing the pre-filter 2 are simultaneously and epitaxially fixed with the inner surface of the front wall of the shell (so that the air flow entering the utility model through the shell air inlet connector 1-1 can be filtered upstream uniformly through the pre-filter 2 in advance and then is further divided, so that impurities such as tar and dust in waste gas can be removed firstly, the influence of the tar and the dust on the service life of the activated carbon adsorption unit 3 is reduced), and the upper and lower folded plates used for installing the post-filter 4 are simultaneously and epitaxially fixed with the inner surface of the rear wall of the shell (so that the air flow converged into the inverted F-shaped converging flow channel 1-3 after being adsorbed is treated is discharged to the atmosphere together through the shell air outlet connector 1-4 after being filtered by uniform downstream dust removal of the activated carbon dust in the exhaust air through the post-filter 4); the rightmost end folded plate for installing the first layer of activated carbon adsorption unit 3 is simultaneously and epitaxially fixed with the inner surface of the top wall of the shell, the leftmost end folded plate for installing the first layer of activated carbon adsorption unit 3 and the second layer of activated carbon adsorption unit 3 is connected into a whole, the rightmost end folded plate for installing the second layer of activated carbon adsorption unit 3 and the third layer of activated carbon adsorption unit 3 is connected into a whole, and the leftmost end folded plate for installing the third layer of activated carbon adsorption unit 3 is simultaneously and epitaxially fixed with the inner surface of the bottom wall of the shell (folded plate 5 is matched with the shell 1 to form an F-shaped dispersing flow channel 1-2 and an inverted F-shaped converging flow channel 1-3, so that waste gas can be conveniently split and evenly adsorbed and purified to treat harmful substances such as aerosol, acid mist, nitrogen oxides, VOCs and the like in the waste gas).

The specific use cases of the utility model are as follows:

before the utility model is used, the utility model is assembled according to the relative assembly relation described by the structure and shown in the drawings, each activated carbon adsorption unit 3 filled with activated carbon 3-3 is pushed into the corresponding drawing groove, and the pre-filter 2 and the post-filter 4 are pushed into the corresponding drawing groove. After the utility model is assembled, the utility model can be put into normal use, namely, the air flow enters the utility model from an external air inlet pipeline connected with the shell air inlet joint 1-1, the pre-filter 2, the F-shaped dispersing flow channel 1-2, the activated carbon adsorption unit 3, the inverted F-shaped converging flow channel 1-3, the post-filter 4 and the shell air outlet joint 1-4 which sequentially flow through in the purifying device. The air flow entering the utility model through the shell air inlet connector 1-1 is filtered upstream in advance through the pre-filter 2, so that impurities such as tar and dust in the waste gas can be effectively removed, the influence of the tar and the dust on the operation life of the activated carbon adsorption unit 3 is reduced, and the operation life of the activated carbon adsorption unit 3 and the utility model is greatly prolonged; then the airflow is split along the F-shaped dispersing flow channel 1-2, so that each active carbon adsorption unit 3 on the upper layer and the lower layer can be uniformly dispersed and fully adsorb and purify harmful substances such as aerosol, acid mist, nitrogen oxides, VOCs and the like in the waste gas, a folding carbon bed structure with a plurality of air inlet channels 3-1 and air outlet channels 3-2 uniformly reserved is adopted in the adsorption unit 3, the area of an air inlet surface and an air outlet surface is increased, the stacking thickness of the active carbon adsorption unit 3-3 in a ventilation section of the active carbon adsorption unit 3 is reduced, the running resistance of the active carbon adsorption unit 3 is greatly reduced, and the later running cost of the system is reduced; after the air flow after being adsorbed by the activated carbon adsorption unit 3 is converged into the inverted F-shaped converging flow passage 1-3, the activated carbon dust in the exhaust air is subjected to uniform downstream dust removal and filtration through the post filter 4, namely the activated carbon dust in the exhaust air is filtered, so that the dust content in the exhaust air can be effectively reduced; finally, the air is safely discharged into the atmosphere through the shell air outlet connector 1-4.

Claims (2)

1. An organic waste gas purification device with long service life and low flow resistance, which is characterized in that: the device comprises a shell (1), active carbon adsorption units (3) which are arranged in an inner cavity of the shell in a vertically parallel and spaced layering way in a front-back horizontal drawing way, a pre-filter (2) which is arranged between the active carbon adsorption units (3) and an air inlet joint (1-1) of the shell in a front-back horizontal drawing way, and a post-filter (4) which is arranged between the active carbon adsorption units (3) and an air outlet joint (1-4) of the shell in a front-back horizontal drawing way; the active carbon adsorption unit (3) adopts a folding carbon bed structure with a plurality of air inlet channels (3-1) and air outlet channels (3-2) reserved uniformly inside; the air flow sequentially flows through the shell air inlet joint (1-1), the pre-filter (2), the F-shaped dispersing flow channel (1-2), the inverted F-shaped converging flow channel (1-3) and the shell air outlet joint (1-4) in the purifying device to form an air flow channel.

2. An organic exhaust gas purifying apparatus having a long operating life and a low flow resistance according to claim 1, wherein: the drawing grooves for installing the pre-filter (2), the activated carbon adsorption unit (3) and the post-filter (4) are formed by buckling folded plates (5) vertically fixed on the inner surface of the rear wall of the machine shell; the upper and lower folded plates for installing the pre-filter (2) are simultaneously and epitaxially fixed with the inner surface of the front wall of the machine shell, and the upper and lower folded plates for installing the post-filter (4) are simultaneously and epitaxially fixed with the inner surface of the rear wall of the machine shell; the rightmost end folded plate for installing the first layer of activated carbon adsorption unit (3) is simultaneously and epitaxially fixed with the inner surface of the top wall of the shell, the leftmost end folded plate for installing the first layer of activated carbon adsorption unit (3) and the second layer of activated carbon adsorption unit (3) is connected into a whole, the rightmost end folded plate for installing the second layer of activated carbon adsorption unit (3) and the third layer of activated carbon adsorption unit (3) is connected into a whole, and the leftmost end folded plate for installing the third layer of activated carbon adsorption unit (3) is simultaneously and epitaxially fixed with the inner surface of the bottom wall of the shell.