JP3193464U - Gas cleaning device and draft chamber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas cleaning device or a fume hood which can be installed in a room having a low floor-to-ceiling height or a room having a narrow frontage without deteriorating the environment or the like. SOLUTION: A gas cleaning device 3 sprinkles water on a filter 22 containing a filler provided in an air flow path 38 and air flowing through the air flow path 38 downstream of the filter 22 containing the filler in the air flow path 38. The shower 23, the vinyl lock filter 24 provided downstream of the shower 23 in the air flow path 38, and the shower 23 and the circulating water tank chamber 29 by pumping up the washing water stored in the circulating water tank chamber 29 and supplying it to the shower 23. It has a circulation pump 27 that circulates wash water between the two, and a housing 20 that is made of polypropylene and is arranged behind the draft chamber main body 2. [Selection diagram] Fig. 1

Description

  The present invention relates to a gas cleaning device and a draft chamber for cleaning and removing exhaust gas contained in air.

  2. Description of the Related Art Conventionally, in places where chemicals or precision equipment are used, such as laboratories or laboratory laboratories, gas cleaning apparatuses that clean and remove exhaust gas contained in air are used to protect the safety of people and products. The gas cleaning device cleans and removes exhaust gases such as harmful substances generated in the working space of the draft chamber body using chemicals or precision equipment. The casing of the draft chamber body and the casing of the gas cleaning device are made of vinyl chloride.

  Conventionally, there has been known a draft chamber in which a gas cleaning device is provided on an upper surface or a side surface of a draft chamber body.

  However, since the conventional gas cleaning apparatus and draft chamber are formed of a material that generates dioxin such as vinyl chloride or a material that cannot be recycled, there is a problem that the environment and the like may be significantly deteriorated. Further, in the conventional gas cleaning device and the draft chamber, since the gas cleaning device is provided on the upper surface or the side surface of the draft chamber body, there is a problem that it cannot be installed in a room with a low height from the floor to the ceiling or a room with a narrow frontage. .

  An object of the present invention is to provide a gas cleaning device and a draft chamber that can be installed in a room with a low height from the floor to the ceiling or a room with a narrow frontage without deteriorating the environment or the like.

  A gas cleaning device according to the present invention is a gas cleaning device that sucks in air containing exhaust gas discharged from a mounted device, and cleans and removes the exhaust gas. The gas cleaning device opens to the housing and the housing. An air suction portion that sucks in air containing the exhaust gas, an air discharge portion that is open to the housing, an air flow path that connects the air suction portion and the air discharge portion inside the housing, and washing water A water tank chamber for storing water, a filter with a filler provided in the air flow path, and a shower for spraying cleaning water to the air flowing through the air flow path downstream of the filter with the filler in the air flow path And a vinylock filter provided downstream of the shower in the air flow path, and the shower and the aquarium chamber by pumping the wash water stored in the aquarium chamber and supplying it to the shower Anda circulation pump for circulating the washing water between the housing, the disposed behind of the attached device while being formed of polypropylene.

A draft chamber according to the present invention is a draft chamber for cleaning and removing the exhaust gas of air containing exhaust gas, and includes a first housing and a working space formed in the first housing. A draft chamber body provided in front of the first casing, and a transparent window that allows the working space to be visually recognized and opened to the outside, a second casing, and the second casing An air suction portion that opens to the housing and faces the working space and sucks air containing the exhaust gas discharged from the working space, an air discharge portion that opens to the second housing, An air flow path connecting the air suction part and the air discharge part inside the second housing, a water tank chamber for storing cleaning water, a filter with a filler provided in the air flow path, and the air flow From the filter with filler in the road A shower for spraying washing water to the air flowing in the air flow path downstream, a vinylock filter provided downstream of the shower in the air flow path, and the washing water stored in the water tank chamber A gas pump comprising a circulation pump that circulates cleaning water between the shower and the water tank chamber by supplying to the shower, and the first housing is made of polypropylene, The second housing is formed of polypropylene and is disposed behind the first housing.

  According to the present invention, it is possible to prevent deterioration of the environment and the like, and it can be installed in a room with a low height from the floor to the ceiling or a room with a narrow frontage.

It is sectional drawing of the draft chamber which concerns on the 1st Embodiment of this invention. It is a top view of the gas cleaning apparatus which concerns on the 1st Embodiment of this invention. 1 is a front view of a gas cleaning device according to a first embodiment of the present invention. It is sectional drawing of the draft chamber which concerns on the 2nd Embodiment of this invention.

  Hereinafter, a draft chamber according to an embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In the figure, the x-axis, y-axis, and z-axis form a three-axis orthogonal coordinate system, where the positive y-axis direction is the forward direction, the negative y-axis direction is the backward direction, the x-axis direction is the left-right direction, and the z-axis direction is A description will be given assuming that the positive direction is upward and the negative direction of the z-axis is downward.

(First embodiment)
<Draft chamber configuration>
The configuration of the draft chamber 1 according to the first embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 3.

  The draft chamber 1 includes a draft chamber body 2, a gas cleaning device 3, and a storage unit 4.

  The draft chamber body 2 can perform work using chemicals or precision equipment inside.

  The gas cleaning device 3 sucks air containing exhaust gas such as harmful substances discharged from the draft chamber main body 2 from the draft chamber main body 2, and discharges the air after cleaning and removing the exhaust gas.

  The storage unit 4 is provided below the draft chamber main body 2 and the gas cleaning device 3, has a space 41 for storing chemicals and the like, and has a door 40 that can be opened and closed forward. The draft chamber 1 may not have the storage unit 4.

<Configuration of draft chamber body>
The configuration of the draft chamber body 2 according to the first embodiment of the present invention will be described in detail below with reference to FIG.

  The draft chamber body 2 includes a housing 10, a work space 11, a partition wall 12, an illumination 13, and a window 14.

The housing 10 is made of polypropylene and has a working space 11 therein.

  The working space 11 is a space that can be used for chemicals or precision equipment, and is surrounded by a housing 10.

  The partition wall 12 is provided in the work space 11 and faces the gas cleaning device 3 with a predetermined distance. The partition wall 12 has a shape in which an upper side is bent forward, and an upper end thereof is opposed to the upper surface of the inner wall of the housing 10 with a predetermined interval. A through hole 121 and a through hole 122 that penetrate in the plate thickness direction are provided in a portion of the partition wall 12 facing the gas cleaning device 3.

  The illumination 13 is provided in front of the upper surface of the inner wall of the housing 10, and enables the work space 11 to be illuminated from the inside.

  The window 14 is provided at the front end of the housing 10 and is transparent so that the inside of the work space 11 can be seen from the front. The window 14 can be opened and closed, and the work space 11 can be opened to the outside.

<Configuration of gas cleaning device>
The configuration of the gas cleaning device 3 according to the first embodiment of the present invention will be described in detail below with reference to FIGS.

  The gas cleaning device 3 includes a housing 20, an air suction unit 21, a filter 22 with a filler, a shower 23, a vinylock filter 24, an exhaust damper 25, an air discharge unit 26, a circulation pump 27, A circulating water tank chamber 29, a drain valve 30, a pump discharge valve 33, a water level gauge 34, an inspection window 35, an inspection window 36, and an air flow path 38 are provided.

  The housing | casing 20 is formed with the polypropylene and has the air flow path 38 inside.

  The air suction portion 21 is provided to open in front of the lower end of the housing 20, faces the work space 11, and communicates the air flow path 38 and the work space 11.

  The filter 22 with filler is provided above the air suction portion 21 and is provided in the air flow path 38 so as to close the air flow path 38.

  The shower 23 is provided above the filter 22 with filler, and is provided downstream of the filter 22 with filler in the air flow path 38, and sprays cleaning water into the air flowing through the air flow path 38. Here, downstream means downstream in the direction of air flow.

  The vinylock filter 24 is provided above the shower 23, provided downstream of the shower 23 in the air flow path 38, and provided in the air flow path 38 so as to close the air flow path 38.

  The exhaust damper 25 adjusts the amount of air flowing from the air flow path 38 to the air discharge unit 26.

  The air discharge unit 26 is provided at the upper end of the housing 20 so as to communicate with the air flow path 38 and the outside. The air discharged from the air discharge unit 26 passes through a duct (not shown) connected to the air discharge unit 26 and is discharged outside the room in which the draft chamber 1 is installed.

  The circulation pump 27 is stored in the space 41 of the storage unit 4, and the washing water stored in the circulation water tank chamber 29 is pumped up to the shower 23 and supplied to the shower 23, whereby the shower 23 and the circulation water tank chamber 29 are provided. Circulate wash water between

  The circulating water tank chamber 29 is provided at the lower end of the gas cleaning device 3 and stores cleaning water for spraying water from the shower 23. The circulating water tank chamber 29 stores the wash water sprayed from the shower 23 so that it can be reused, and new wash water can be supplied from the outside. The circulating water tank chamber 29 can discharge dirty cleaning water to the outside.

  The drain valve 30 adjusts the flow rate and pressure of the cleaning water when the cleaning water pumped up from the circulating water tank chamber 29 by the circulation pump 27 is discharged to the outside of the gas cleaning device 3.

  The pump discharge valve 33 adjusts the flow rate and pressure of the cleaning water when the cleaning water pumped up from the circulating water tank chamber 29 by the circulation pump 27 is supplied to the shower 23.

  The water level meter 34 indicates the water level of the wash water stored in the circulating water tank chamber 29.

  The inspection window 35 is provided in front of the housing 20 and makes the shower 23 visible from the outside so that the shower 23 can be inspected. The inspection window 35 is a window that does not open and close.

  The inspection window 36 is provided in front of the housing 20 so that the filter 22 with a filler can be visually recognized from the outside, and the filter 22 with a filler can be inspected. The inspection window 36 is a window that does not open and close.

  The air flow path 38 connects the air suction part 21 and the air discharge part 26 and is surrounded by the housing 20. The air flow path 38 is sealed from the outside so that the air flowing inside does not leak to the outside.

  The gas cleaning apparatus 3 having the above configuration is vertically long, has a longer left-right direction than the front-rear direction, and has a substantially rectangular shape when viewed from above.

<Operation of draft chamber>
The operation of the draft chamber 1 according to the first embodiment of the present invention will be described in detail below.

  The window 14 of the draft chamber body 2 is opened, and a predetermined operation is performed using an instrument or apparatus inserted from the window 14 into the work space 11. By this work, exhaust gas such as harmful substances is generated in the work space 11.

  Next, air containing exhaust gas such as harmful substances generated in the work space 11 is sucked through the gas cleaning device 3 by an external fan (not shown), so that the partition wall 12 and the inner wall of the housing 10 are separated. It flows in the direction of the gas cleaning device 3 from the gap or the through hole 121 and the through hole 122 of the partition wall 12.

  Next, the air containing the exhaust gas flowing in the direction of the gas cleaning device 3 is sucked into the air flow path 38 of the gas cleaning device 3 from the air suction portion 21 of the gas cleaning device 3.

  Next, the air sucked into the air flow path 38 rises in the air flow path 38 and the exhaust gas is removed when passing through the filter 22 with the filler.

  Next, the air that has passed through the filter 22 with the filler further rises in the air flow path 38 and is sprayed with cleaning water by the shower 23 to clean the exhaust gas.

  Next, the air sprinkled by the shower 23 further rises in the air flow path 38 and the exhaust gas is removed when passing through the vinylock filter 24.

  Next, the air from which the exhaust gas has been cleaned and removed by the filler-filled filter 22, the shower 23 and the vinylock filter 24 is discharged from the air discharge unit 26.

  Thus, according to this embodiment, since the housing | casing 10 and the housing | casing 20 are formed with a polypropylene, specific gravity can be made small compared with the thing made from the vinyl chloride of the conventional structural material, and it reduces in weight. In order to increase the surface hardness, have a beautiful appearance of gloss, have chemical resistance, corrosion resistance and heat resistance, enable recycling, and do not generate dioxins It can prevent the environment from deteriorating.

  Moreover, according to this embodiment, since the length in the height direction and the left-right direction can be shortened by arranging the case 20 behind the case 10, the height from the floor to the ceiling is low. A draft chamber can be installed in a room or a room with a narrow frontage, and it is possible to prevent the empty space in the height direction and the left-right direction of the room in which the draft chamber is installed from becoming narrow.

  Moreover, according to this embodiment, since exhaust gas is removed using two types of filters, a filler-filled filter and a vinylock filter, the exhaust gas can be reliably removed.

(Second Embodiment)
<Draft chamber configuration>
The configuration of the draft chamber 5 according to the second embodiment of the present invention will be described in detail below with reference to FIG.

  In FIG. 4, parts having the same configuration as in FIGS. 1 to 3 are denoted by the same reference numerals, and description thereof is omitted.

  The draft chamber 5 includes a draft chamber body 2, a gas cleaning device 6, and a storage unit 4.

  The gas cleaning device 6 sucks air containing exhaust gas such as harmful substances generated in the draft chamber main body 2 from the draft chamber main body 2, and discharges air after cleaning and removing the exhaust gas contained in the sucked air. .

  The storage unit 4 is provided below the draft chamber main body 2 and the gas cleaning device 6, has a space 41 for storing chemicals and the like, and has a door 40 that can be opened and closed forward. The draft chamber 5 may not have the storage unit 4.

<Configuration of gas cleaning device>
The configuration of the gas cleaning device 6 according to the second embodiment of the present invention will be described in detail below with reference to FIG.

  In FIG. 4, parts having the same configuration as in FIGS. 1 to 3 are denoted by the same reference numerals, and description thereof is omitted.

  The gas cleaning device 6 includes a housing 20, an air suction part 21, a filter 22 with a filler, a shower 23, a vinylock filter 24, an air discharge part 26, a circulation pump 27, and a circulation water tank chamber 29. , A drain valve 30, a pump discharge valve 33, a water level gauge 34, an inspection window 35, an inspection window 36, an air flow path 38, and an exhaust fan 50.

  The exhaust fan 50 is provided above the housing 20, sucks air containing exhaust gas discharged from the work space 11 into the air suction portion 21, and sucks air sucked from the air suction portion 21 into the air flow path 38. The air is discharged from the air discharge unit 26 via The exhaust fan 50 uses a corrosion-resistant product. The air exhausted from the air exhaust unit 26 by the exhaust fan 50 is air after being cleaned by the shower 23 and from which exhaust gas has been removed by the filler-filled filter 22 and the vinylock filter 24. It is discharged into the room where it is installed.

  The operation of the draft chamber 5 is the same as the operation of the draft chamber 1 according to the first embodiment, and a description thereof will be omitted.

  According to the present embodiment, in addition to the effects of the first embodiment, air exhausted from the exhaust fan is exhausted from the exhaust fan to the room where the draft chamber is installed. Complete air conditioning can be implemented.

  Further, according to the present embodiment, since the corrosion-resistant product is used as the exhaust fan 50, the exhaust fan can be used semipermanently.

  In the present invention, the type, arrangement, number, etc. of the members are not limited to the above-described embodiments, and the constituent elements thereof are appropriately replaced with those having the same operational effects, etc. Of course, it can be changed appropriately.

  For example, in the first and second embodiments, the gas cleaning device is attached to the rear of the draft chamber body. However, the gas cleaning device can be attached to the rear of the attached device other than the draft chamber main body. .

  Further, in the first embodiment and the second embodiment, the exhaust gas is removed by the filter 22 with the filler and the vinyllock filter 24. However, the exhaust gas is removed by a filter other than the filter 22 with the filler and the vinylock filter 24. May be removed.

  The gas cleaning apparatus and the draft chamber according to the present invention are suitable for cleaning and removing exhaust gas.

DESCRIPTION OF SYMBOLS 1 Draft chamber 2 Draft chamber main body 3 Gas cleaning apparatus 4 Storage part 5 Draft chamber 6 Gas cleaning apparatus 10 Case 11 Working space 12 Partition 13 Illumination 14 Window 20 Case 21 Air suction part 22 Filled filter 23 Shower 24 Bini Lock filter 25 Exhaust damper 26 Air exhaust part 27 Circulating pump 30 Drain valve 33 Pump discharge valve 34 Water level gauge 35 Inspection window 36 Inspection window 38 Air flow path 40 Door 121 Through hole 122 Through hole

Claims (4)

A gas cleaning device that sucks in air containing exhaust gas discharged from a mounted device and cleans and removes the exhaust gas,
A housing,
An air suction portion that opens into the housing and sucks air containing the exhaust gas;
An air discharge part opened in the housing;
An air flow path connecting the air suction part and the air discharge part inside the housing;
A tank room for storing wash water;
A filter with a filler provided in the air flow path;
A shower for spraying washing water to the air flowing through the air flow path downstream of the filter with the filler in the air flow path;
A vinylock filter provided downstream of the shower in the air flow path;
A circulation pump that circulates the cleaning water between the shower and the water tank chamber by pumping the cleaning water stored in the water tank chamber and supplying the water to the shower;
Have
The housing is
Formed of polypropylene and placed behind the mounted device,
A gas cleaning apparatus characterized by that. A fan that sucks the air containing the exhaust gas discharged from the mounted device into the air suction portion and discharges the air from the air discharge portion via the air flow path;
The air discharge part is
Exhausting air into the room where the gas scrubber is installed;
The gas cleaning apparatus according to claim 1. A draft chamber for cleaning and removing said exhaust gas of air containing exhaust gas,
A first housing, a working space formed in the first housing, and a front space provided to the front of the first housing so that the working space can be visually recognized and opened to the outside. A draft chamber body comprising a transparent window;
A second housing, an air suction portion that opens into the second housing and faces the working space, and sucks air containing the exhaust gas discharged from the working space; and the second housing An air discharge portion that is open to the body, an air passage that connects the air suction portion and the air discharge portion inside the second housing, a water tank chamber that stores wash water, and an air passage A filled filter, a shower for spraying cleaning water to the air flowing through the air flow path downstream of the filled filter in the air flow path, and a downstream of the shower in the air flow path A gas cleaning apparatus comprising: a vinylock filter provided; and a circulation pump that circulates the cleaning water between the shower and the water tank chamber by pumping the cleaning water stored in the water tank chamber and supplying the water to the shower And,
Have
The first housing is
Formed of polypropylene,
The second housing is
Formed of polypropylene and disposed behind the first housing;
A draft chamber characterized by that. The gas scrubber is
A fan that sucks the air in the draft chamber body into the air suction portion and discharges it from the air discharge portion via the air flow path;
The air discharge part is
Exhausting air into the room where the draft chamber is installed;
The draft chamber according to claim 3.

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