KR101636372B1 - The Noxious gas cleaning system - Google Patents

The Noxious gas cleaning system Download PDF

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Publication number
KR101636372B1
KR101636372B1 KR1020160040921A KR20160040921A KR101636372B1 KR 101636372 B1 KR101636372 B1 KR 101636372B1 KR 1020160040921 A KR1020160040921 A KR 1020160040921A KR 20160040921 A KR20160040921 A KR 20160040921A KR 101636372 B1 KR101636372 B1 KR 101636372B1
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South Korea
Prior art keywords
noxious gas
neutralizing
liquid
unit
nozzle
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KR1020160040921A
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Korean (ko)
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한경희
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(주)유나
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0035—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by wetting, e.g. using surfaces covered with oil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B01D50/006—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/263—Drying gases or vapours by absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L5/00—Gas handling apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2221/00—Applications of separation devices
    • B01D2221/10—Separation devices for use in medical, pharmaceutical or laboratory applications, e.g. separating amalgam from dental treatment residues
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/50—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for air conditioning
    • B01D2279/51—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for air conditioning in clean rooms, e.g. production facilities for electronic devices, laboratories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/06—Fluid handling related problems
    • B01L2200/0631—Purification arrangements, e.g. solid phase extraction [SPE]

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Clinical Laboratory Science (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

The present invention relates to a harmful gas purifying apparatus which is installed in a laboratory carrying hazardous substances or harmful substances so as to prevent dispersion of the harmful substances. More specifically, the present invention relates to a harmful gas purifying apparatus which collects steam and gas produced from chemical substances when handling hazardous chemical substances in an indoor workspace, and releases the steam and gas after neutralizing the same with a neutralizing part formed at a lower end.

Description

The Noxious gas cleaning system

The present invention relates to a harmful gas purifying apparatus installed in a laboratory for handling hazardous materials or hazardous materials and capable of preventing the scattering of harmful substances, and more particularly, The present invention relates to a harmful gas purifying apparatus capable of neutralizing vapors and gases through a neutralizing portion formed at a lower end thereof and collecting vapor and gas generated in the material and discharging the gases to the outside.

Generally, in the laboratory, a reagent for storing various reagent containers in isolation and harmful gas such as scattering or vapor contained in dangerous substances in the course of the experiment are sucked and discharged to the outside in order to ensure the safety of the operator. And fume hoods are installed.

That is, the above-mentioned fume hood corresponds to a device for purifying noxious gas. Such a device is capable of preventing air pollution in the laboratory by discharging noxious gas of dangerous substances generated in the course of the experiment so as not to scatter into the room But also to protect the safety of workers. At this time, a scrubber for purifying noxious gas generated in the equipment before the noxious gas is discharged to the outside is connected to the fume hood at the side of the fume hood.

[0004] As an example of the prior art proposed for purifying and neutralizing noxious gas generated in a laboratory or an experimental apparatus, according to the Japanese Laid-Open Patent No. 10-0941666, A filter, a first filter, a neutralized pellet bed, and a second filter, and an independent form in which a blower is embedded between the neutralized pellet bed and the second filter or between the neutralized pellet bed and the neutralized pellet bed A portable type or a stand type indoor harmful gas purifying and neutralizing device of the present invention is disclosed.

However, in the related art, the scrubber has been integrated so that the scrubber has to be aged to replace the entire scrubber when the internal parts fail, and when the solubilizer is introduced and replaced to neutralize the harmful gas, And the like.

1. Korean Patent Laid-Open No. 10-2014-0114119 'Equipment for cleaning harmful gas for laboratory equipment' (filed on March 3, 2013) 2. Registered Patent Publication No. 10-1172708 'Wet gas scrubber' (filed on December 16, 2011)

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for collecting vapor and gas generated from a hazardous chemical, And to provide a harmful gas purifying device capable of discharging the harmful gas.

In order to neutralize harmful gases, a neutralizing liquid is sprayed to the neutralizing liquid to increase the contact time between the neutralizing liquid and the gas so as to improve the neutralizing effect, and when the neutralizing liquid is supplied with the neutralizing liquid, A harmful gas purifying device capable of preventing leakage to the outside is provided.

The harmful gas purifying apparatus of the present invention comprises an opening A opened at one side, a door 110 selectively opening and closing the opening A, and an experimental case 100 in which a work space S having a certain space is formed therein. ; A suction duct (200) formed at an upper end of the test case (100) and sucking noxious gas remaining in the work space (S); A first neutralizing unit 300 which is located at the lower end of the test case 100 and receives the noxious gas from the intake duct 200 to neutralize the noxious gas by spraying the noxious gas to discharge the noxious gas to the outside, ; And a discharge duct 400 for discharging the neutralized and discharged air in the neutralization unit 300 to the outside.

In the present invention, the first neutralizing unit 300 is configured to partition the inside of the experimental case 100 such that the inlet 311 into which the noxious gas flows and the moving passage 312 through which the introduced noxious gas moves are formed A first reaction part 310 composed of a partition wall 313; A first nozzle 320 for injecting a neutralizing liquid into the first reaction part 310 so that the noxious gas contained in the first reaction part 310 is neutralized; A neutralizing liquid is supplied to the first nozzle 320 and a neutralizing liquid in which the neutralizing agent is dissolved is received and the remaining neutralizing liquid injected from the first nozzle 320 is communicated with the first reacting unit 310 A first receiving portion 330 in which an inlet 340 is formed; After the noxious gas that has been neutralized in the first reaction unit 310 is received, the moisture absorbed in the noxious gas or the remaining neutralized liquid is separated, and the first moisture absorbent And a first dehumidifying part 350 having an outlet 351 connected to the outlet duct 400.

The barrier rib 313 may include a first barrier rib 313-1 extending in the horizontal direction and a first barrier rib 313-1 spaced apart from the first barrier rib 313-1 by a predetermined distance, A second barrier rib 313-2 spaced apart from the first barrier rib 313-1 by a predetermined distance and extending in a direction symmetrical to the first barrier rib 313-1 so as to increase the movement distance of the noxious gas, And a plurality of first filling portions 360 for reducing the moving speed of the noxious gas are arranged at predetermined intervals along the moving passage 312 in the moving passage 312, The first nozzle 320 is disposed in a spaced-apart space between the first nozzle 320 and the second nozzle 360,

And a cooling unit (370) for cooling the neutralizing liquid so that the neutralizing liquid can uniformly maintain a predetermined temperature, in the first accommodating unit (330).

In the present invention, the suction duct 200 is provided with a second neutralizing part 500 for injecting a neutralizing liquid into the noxious gas before the noxious gas is introduced into the first neutralizing part 300 in order to raise the neutralization rate of the noxious gas The second neutralization unit 500 includes a second nozzle 510 for receiving the neutralizing liquid from the first containing unit 330 and injecting the neutralizing liquid into the second neutralizing unit 500; And a second filling part 520 positioned at the lower end of the second nozzle 510 to reduce the moving speed of the noxious gas moving to the first neutralization part 300.

A second desiccant 381 through which the neutralized noxious gas passes is provided in the exhaust duct 400 to remove remaining moisture of the noxious gas discharged from the first dehumidifier 350, The second desiccant 380 may include a third desiccant 383 spaced apart from the second desiccant 381 such that an air layer 382 is formed on the second desiccant 381.

The first receiving part 330 is provided with a charging port 331 at one side for injecting a neutralizing agent from the outside and has a partition wall 332 surrounding the inlet port 340 and a charging port 332 for charging the charging port 331 The filtration part 333 is provided on one side of the partition wall 332 to prevent the remainder of the neutralizing agent from moving into the first containing part 330 when the neutralizing agent introduced in the first receiving part 330 is dissolved in the first receiving part 330. [ ) Is provided.

The present invention can easily supplement a neutralizing liquid or a neutralizing agent when the concentration of the neutralizing liquid is diluted or the neutralizing liquid is evaporated to replenish the neutralizing liquid, and the intake air (noxious gas) There is an advantage that the dissolution rate of the neutralizing agent can be improved through the neutralizing liquid circulated to the inlet without leaking to the outside.

In addition, the present invention not only improves the neutralization rate by neutralizing the intake air (noxious gas) in a primary and a secondary order, but also includes a plurality of filling parts to reduce the moving speed of the intake air, The first and second dehumidifying agents were further provided so as not to contain the remaining neutralizing liquid.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing the entirety of a harmful gas purifying apparatus of the present invention. FIG.
2 is a perspective view showing a rear surface of the harmful gas purifying apparatus of the present invention.
3 is a perspective view of a first neutralizing part showing the main configuration of the first neutralizing part of the present invention;
4 is a cross-sectional view showing the internal structure of the first neutralizing part of the present invention as seen from a plane;
5 is a cross-sectional view showing a movement path of noxious gas moving through the first neutralizing part and the first dehumidifying part of the present invention.
6 is a perspective view and a plan view showing an internal structure of a first accommodating portion of the present invention.
7 is a left partial cross-sectional view showing a movement path of the noxious gas moving to the first dehumidifying part of the present invention and a main structure thereof.
8 is a right-hand partial sectional view showing the internal structure of the first neutralizing portion, the inside of the first accommodating portion, and the main configuration of the first and second nozzles.
9 is a sectional view showing a main structure of a second neutralizing part and a second dehumidifying part of the present invention.
10 is a right-hand partial sectional view showing one embodiment of a spray direction of a neutralizing liquid sprayed from the first and second nozzles of the present invention.
11 is a perspective view showing a main structure of a neutralization part of another embodiment of the present invention.
12 is a cross-sectional view showing an internal structure of a neutralization part in another embodiment of the present invention.
13 is a cross-sectional view showing a noxious gas moving path of a neutralization part in another embodiment of the present invention.
14 is a cross-sectional view showing the position and structure of a cooling section in another embodiment of the present invention.
15 is a perspective view showing a cooling / demounting structure of another embodiment of the present invention.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1, the apparatus for purifying noxious gas of the present invention has an experimental case 100. The test case 100 has an opening A whose one side is open. In the opening A, a door 110 is provided so that the opening A can be opened and closed according to the user's selection. The test case 100 may be formed in a hollow shape so that the work space S is formed therein. In the work space S, the user can perform various experiments. Since the dangerous materials and dangerous chemicals are handled in the work space S, it is possible to prevent the materials and the like from being scattered to the outside.

1 and 2, a suction duct 200 communicating with the work space S for sucking air existing in the work space S of the test case 100 is provided outside the test case 100 do. More specifically, one end of the suction duct 200 is coupled to the upper end of the test case 100, and the other end thereof is connected to a ventilator provided in a separate blowing fan or outside the building to receive a suction force.

On the other hand, the dangerous substances and dangerous chemicals mentioned above may mainly correspond to liquids having strong acidity, and such liquids generate acidic vapor (hereinafter referred to as noxious gas). At this time, the harmful gas distributed in the air inside the test case 100 can be discharged to the outside due to the suction duct 200, the blowing fan, and the ventilator communicating with the inside of the test case 100.

The door 110 is slidable in the vertical direction along the opening A, and can be opened and closed to adjust the amount of air sucked in the outside of the test case 100 into the interior according to the opened area.

Referring to FIG. 3, the first neutralizing unit 300 may be replaced with a ventilation fan or a ventilator at the other side of the suction duct 200. The first neutralizing unit 300 is located at the lower end of the experimental case 100 and corresponds to a device for neutralizing and filtering the polluted air such as steam of the hazardous chemical being tested in the experimental case 100 do. That is, when the neutralizing liquid is injected into the noxious gas delivered from one side of the suction duct 200, the noxious gas and the neutralizing liquid are mixed to neutralize the acid concentration of the noxious gas and then discharge the noxious gas to the outside.

Referring to FIGS. 2 and 3, the first neutralizing unit 300 is provided with a discharge duct 400 for discharging the noxious gas neutralized in the first neutralizing unit 300. One end of the discharge duct 400 is connected to the first neutralization unit 300 and the other end is connected to a ventilator or a ventilator provided outside the building to provide a suction force to the experimental case 100.

The test case 100 and the first neutralization unit 300 are interconnected with the suction duct 200 and the discharge duct 400 is spaced apart from the suction duct 200 by a predetermined distance to communicate with the first neutralization unit 300 . Accordingly, the noxious gas inside the test case 100 can be sucked due to the suction force of the ventilation fan or the ventilator provided at the end of the exhaust duct 400, and the noxious gas passes through the first neutralization unit 300, And then discharged to the outside through the discharge duct 400. [

That is, in the experiment using an aqueous solution of hydrochloric acid (HCL) having a high concentration in the experimental case 100, noxious gas mixed with hydrochloric acid and other aqueous solution to be evaporated is sucked into the suction duct 200, (300). At this time, the moving noxious gas has strong acidity.

And a neutralizing solution dissolved in sodium hydroxide (NaOH) or calcium hydroxide (Ca (OH) 2) provided at the lower end of the first neutralizing unit 300 reacts with harmful gas to precipitate water (2H 2 O) and calcium chloride (CaCl 2) And the harmful gas is neutralized.

3 to 7, the first neutralization unit 300 includes a first reaction unit 310, a first nozzle 320, a first accommodation unit 330, and a first dehumidification unit 350.

First, the first reaction part 310 receives a noxious gas from the test case 100 and has a hollow shape to hold noxious gas in a predetermined space. It is preferable that the first reaction part 310 is located below the experimental case 100. An inlet 311 communicating with the inside of the first reaction part 310 is formed at one side of the first reaction part 310 in the back direction to receive the noxious gas from the experimental case 100. The inlet 311 is connected to the other side of the suction duct 200 and can receive the noxious gas from the inner case 310.

A partition wall 313 for guiding the movement path of the noxious gas is provided in the first reaction unit 310. Since the partition wall 313 is provided in the first reaction part 310, the movement path 312 in which the noxious gas moves can be defined in the first reaction part 310.

The nozzle 320 can spray the neutralizing liquid in a predetermined radius in the form of a mist to neutralize the noxious gas contained in the first reaction part 310. The nozzle 320 can be disposed on the upper side of the first reaction part 310 desirable.

Referring to FIG. 6, the first accommodating part 330 is positioned at a lower side of the lower end of the first reaction part 310. The neutralizing liquid in which the neutralizing agent is dissolved is accommodated in the first accommodating portion 330 and the neutralizing liquid accommodated in the first accommodating portion 330 may be supplied to the nozzle 320.

At this time, the nozzle 320 and the first accommodating part 330 are connected to each other through a separate connection pipe 321. One side of the connection pipe 321 passes through one side of the first accommodating portion 330 and the other side is connected to the nozzle 320 so that the neutralizing liquid can be supplied to the nozzle 320. At this time, it is preferable that a pump P is formed in the connection pipe 321 to supply the neutralizing liquid to the nozzle 320.

A plurality of inlets 340 communicating with the hollow interior space of the first reaction part 310 are formed at the upper end of the first accommodating part 330 in the first accommodating part 330. This is because the residual neutralizing liquid injected from the first reaction part 310 flows into the inlet 340 again so that the neutralizing liquid can be recirculated. It is preferable that the inlet port 340 extends vertically and the lower end of the inlet port 340 is submerged to a predetermined depth in the neutralized liquid received in the first receiving portion 330. Therefore, the noxious gas contained in the first reaction part 310 can be prevented from flowing into the first accommodating part 330.

8, the upper end of the first accommodating portion 330 has a shape inclined at a predetermined angle? In the direction of the inlet 340. This is to allow the remaining neutralized liquid of the first reaction part 310 to flow smoothly into the inlet 340. Further, since the remaining neutralizing liquid flowing into the inlet 340 drops to the first containing portion 330, the mixing of the neutralizing agent and the neutralizing liquid can proceed smoothly, so that there is an additional advantage that the dissolution rate of the neutralizing agent can be improved.

The first dehumidifying part 350 receives the noxious gas that has been neutralized in the first reaction part 310 and separates the moisture or residual neutralizing liquid contained in the noxious gas, Gas is discharged. That is, the first dehumidifying part 350 communicated with the first reaction part 310 receives the noxious gas to one side and transmits the noxious gas to the exhaust duct 400 through the exhaust port 351 provided at the other side. At this time, a first moisture absorbent 352 for separating moisture or residual neutralizing liquid from noxious gas is provided inside the first dehumidifying part 350, and the inside of the first dehumidifying part 350 is divided so that the first dehumidifying part 350 is separated in the left- The partition 350-1 may be provided upright in the vertical direction. Therefore, the noxious gas moves in a 'U' shape.

The first desiccant 352 is a fiber having a plurality of meshes formed by a plurality of meshes. The noxious gas passes through the first desiccant 352 and the moisture containing the noxious gas in the plurality of meshes and the remaining neutralized liquid are formed into a liquid do.

The first dehumidifying part 350 is provided at the upper end of the first receiving part 330 with the lower end opened and when the remaining neutralizing liquid formed in the first desiccant 352 falls downward due to gravity, (340) along the sloping top of the second chamber (330).

Referring to FIGS. 4 and 5, the partition 313 of the first reaction unit 310 includes a first partition 313-1 and a second partition 313-2. The first partition 313-1 extends from one side to the other side of the inner side of the first reaction part 310 with respect to the plane. At this time, it is preferable that the end of the first partition 313-1 is spaced apart from the inner surface of the first reaction part 310 so that the noxious gas can be moved. The second barrier ribs 313-2 extend in a direction symmetrical to the first barrier ribs 313-1 at regular intervals from the first barrier ribs 313-1. As a result, the distance of the moving path 312 can be increased, and the noxious gas introduced into the inlet 311 moves in the 'S' shape. Accordingly, the time required for the noxious gas to stay in the first reaction unit 310 is increased, and thus the neutralization ratio can be improved.

Referring to FIGS. 4 and 8, a plurality of first filling parts 360 are spaced apart from each other by a predetermined distance in the movement path 312. A plurality of the first filling parts 360 may be provided to improve the contact ratio between the noxious gas and the neutralizing liquid. This makes it possible to reduce the moving speed of the noxious gas passing through the moving passage 312.

That is, when the harmful gas passing through the first filling part 360 enters a number of small holes filled in the first filling part 360, the instantaneous moving speed is increased, but the moment of the harmful gas passing through the first filling part 360 The moving speed of the gas is remarkably reduced. Since a plurality of first filling parts 360 are provided and a plurality of spaced spaces are arranged between the first filling parts 360, the above-mentioned phenomenon is repeated, and the contact efficiency between the harmful gas and the neutralizing liquid can be improved .

A first nozzle (320) is disposed between the spaces between the first filling parts (360) to spray the neutralizing liquid. At this time, the jetting direction of the first nozzle 320 may be the direction of the first filling part 360, or the direction opposite to the movement path of the noxious gas.

Referring to FIG. 10, the spraying direction of the neutralizing liquid is sprayed downward on the upper side, so that the moving speed of the noxious gas can be reduced. The injection direction of the first nozzle 320 may be changed according to the type of the noxious gas used to increase the contact efficiency between the noxious gas and the neutralizing liquid.

Referring to FIGS. 6 to 8, a cooling unit 370 for cooling the neutralizing liquid is provided in the first accommodating unit 330. When the neutralizing agent is dissolved in the neutralizing liquid, the temperature of the neutralizing liquid is increased. The calcium hydroxide used as the neutralizing agent is preferably lowered in the temperature of the solution to be dissolved, since the dissolution rate of the calcium hydroxide is remarkably decreased when the temperature of the solution to be dissolved is high. In order to solve this problem, the first accommodating part 330 is provided with a cooling part 370 for lowering the temperature of the neutralizing liquid.

The cooling unit 370 is provided between the plurality of cooling plates 371 and the cooling plate 371 having a predetermined thickness and spaced apart from each other by a predetermined distance in the vertical direction to cool the cooling plate 371 A compressor 373 connected to the refrigerant moving pipe 372 and the refrigerant moving pipe 372, and a heat exchanger 374. The cooling plate 371 is formed in a wide plate shape so that heat exchange with the neutralizing liquid can be smoothly performed. The refrigerant is accommodated in the refrigerant moving pipe 372. The refrigerant is converted into gas and the refrigerant converted into gas is transferred to the compressor 373 and converted into liquid. Thereafter, the refrigerant moves to the heat exchanger 374 and is cooled, and the cooled refrigerant moves to the refrigerant pipe 371 again. As the process is repeatedly circulated, the neutralizing liquid can always be maintained at a constant temperature (0 to 20 ° C). The cooling unit 370 corresponds to a cooling method used in a general refrigerator.

Referring to FIGS. 8 and 9, the suction duct 200 is provided with a second neutralizing part 500 for reducing the PH concentration of the harmful gas to a first level before the harmful gas is introduced into the first neutralizing part 300. This is provided for the purpose of further improving the neutralization rate of the noxious gas.

The second neutralizing part 500 is provided inside the case 501 in which a receiving space is formed and a second neutralizing part 500 receiving the neutralizing liquid from the first receiving part 330, A second nozzle 510 for injecting a neutralizing liquid into the passing noxious gas and a second filling part 520 for controlling or reducing the moving speed of the noxious gas at the lower end of the second nozzle 510. The second filling part 520 provides the same purpose and effect as the first filling part 360, and thus a detailed description thereof will be omitted.

The second nozzle 510 is connected to the connection pipe 511 connected to the first accommodating part 330 to receive the neutralizing liquid from the first accommodating part 330 and the second nozzle 510 is connected to the connection pipe 511. [ And a second pump P2 for discharging the neutralized liquid to the connection pipe 511 at a constant pressure in order to supply the neutralized liquid to the second pipe.

7 and 9, the exhaust duct 400 is provided with a second dehumidifying part 380. [ The second dehumidifying part 380 is provided for the purpose of removing residual moisture of the noxious gas which has been discharged from the first dehumidifying part 350 and has been neutralized. That is, the second dehumidifier 380 removes the remaining moisture that is not removed yet, so that only the completely dried air is discharged.

The second dehumidifier 380 includes a second desiccant 381 through which the noxious gas passes and a third desiccant 383 spaced apart from the second desiccant 381 by a predetermined distance. The second desiccant 381 and the third desiccant 383 are made of the same material and structure as those of the first desiccant 351.

At this time, the noxious gas passing through the discharge duct 400 is discharged at a high rate. Due to the air layer 382 formed between the second desiccant 381 and the third desiccant 383, the second desiccant 381 Can be prevented from being discharged to the outside together with the acidic gas discharged from the third moisture absorbent 383 and the residual neutralizing liquid.

Referring to FIGS. 3 to 7, a charging port 330-1 is formed at one side of the first accommodating portion 330 so that the neutralizing agent can be inserted into the first accommodating portion 330. As shown in FIG. A partition wall 332 surrounding the inlet 340 formed in the first accommodating portion 330 is provided in a direction in which the inlet 330-1 is formed. That is, the partition wall 332 is configured to surround the plurality of inlet ports 340 and the perimeter of the inlet port 330-1 in the first receiving portion 330.

When the partition wall 332 is wrapped around the inlet port 340 and the inlet port 330-1 to induce the neutralizer to stay in a predetermined space, the neutralizing agent is supplied to the first and second nozzles 320 and 510 To the supply pipe for supplying the water to the nozzle.

Further, as the remaining neutralizing liquid flowing in the inlet 340 drops to the neutralizing agent and the neutralizing liquid, the neutralizing agent and the neutralizing liquid can be mixed smoothly.

At this time, only a neutralizing solution dissolved in a part of the partition wall 332 is supplied to one side of the partition wall 332 so as to prevent the residual of the neutralizing agent or the neutralizing agent from moving to the inside of the first containing part 330 And a filtration unit 333 for filtration. The filtration unit 333 may be formed of a mesh having a predetermined through-hole or a sponge, a mesh of a plurality of piles, or the like.

Hereinafter, another embodiment of the present invention will be described in detail.

Referring to FIG. 11, the neutralization unit 3000 for purifying noxious gas sucked in the experimental case 100 is provided at the lower end of the experimental case 100 of the noxious gas purifying apparatus of the present invention. The neutralization part 3000 includes an inner case 3100, a nozzle 3200, a first reaction part 3300, a second reaction part 3400, a partition wall 3500 and a receiving part 3600.

First, the inner case 3100 receives a noxious gas from the test case 100 and has a hollow shape to hold harmful gas in a predetermined space. The inner case 3100 is preferably located on the lower side of the test case 100. An inlet 3110 communicating with the inside of the inner case 3100 is formed at one side of the inner case 3100 in the back direction to receive the noxious gas from the experimental case 100. The inlet 3110 is connected to the other side of the suction duct 200 and can receive the noxious gas from the inner case 3100.

The inner case 3100 is connected to the inner case 3100 so that the noxious gas neutralized inside the inner case 3100 is discharged from the inner case 3100 in the rear direction of the inner case 3100, 3120 are formed. The outlet 3120 may be connected to one end of the exhaust duct 400.

The nozzle 3200 may spray the neutralizing liquid in a predetermined radius in the form of a mist to neutralize the harmful gas contained in the inner case 3100 and may be located on the upper side of the inner case 3100.

Referring to FIGS. 12 and 13, the first reaction part 3300 and the second reaction part 3400 are partitioned into hollow chambers of the inner case 3100, respectively. At this time, the nozzle 3200 may include a plurality of nozzles for spraying the neutralizing liquid to the first reaction part 3300 and the second reaction part 3400, respectively. The first reaction part 3300 may be partitioned at a position adjacent to the inlet 3110 and the second reaction part 3400 may be partitioned at a position adjacent to the outlet 3120. The first reaction part 3300 and the second reaction part 3400 are preferably communicated with each other so that the noxious gas can be transferred from the first reaction part 3300 to the second reaction part 3400. At this time, the nozzle 3200 is positioned above the first reaction part 3300 and the second reaction part 3400, and the lower ends of the first and second reaction parts 3300 and 3400 are respectively opened.

That is, the noxious gas passing through the inlet port 3110 moves from the lower end to the upper end of the first reaction section 3300. At this time, the noxious gas is firstly neutralized while being in contact with the neutralizing liquid sprayed from the nozzle 3200. Then, the first neutralized noxious gas moves to the second reaction part 3400, and at the same time, the neutralizing liquid sprayed from the nozzle 3200 located in the second reaction part 3400 is neutralized while being in contact with the second reaction, Moves to the lower end of the portion 3400 and is discharged to the discharge port 3120. [

12 and 13, the partition 3500 is located between the first reaction part 3300 and the second reaction part 3400, and the first reaction part 3300 and the second reaction part 3400 are disposed between the first reaction part 3300 and the second reaction part 3400, In the vertical direction. Also, the barrier ribs 3500 have the purpose of extending the movement lines of the noxious gas moving from the first reaction part 3300 to the second reaction part 3400 to improve the neutralization efficiency.

In addition, a plurality of air rings may be provided in the first reaction part 3300 and the second reaction part 3400 to improve the contact ratio between the noxious gas and the neutralizing liquid.

12 and 13, the receiving portion 3600 is located at the lower end of the inner case 3100, that is, the lower end of the first reaction portion 3300 and the open lower end of the second reaction portion 3400. The neutralization liquid in which the neutralizing agent is dissolved is accommodated in the accommodating portion 3600. The neutralizing liquid contained in the accommodating portion 3600 may be supplied to the nozzle 3200. The nozzle 3200 and the accommodating portion 3600 are connected to each other through a connection pipe 3610. [ That is, one side of the connection pipe 3610 passes through one side of the accommodating portion 3600, and the other side is connected to the nozzle 3200, so that the neutralizing liquid can be supplied to the nozzle 3200. At this time, the connection pipe 3610 is preferably formed with a pump P for supplying the neutralizing liquid to the nozzle 3200.

12 and 13, the partition 3500 is composed of a storage tank 3510 and a bottom plate 3520. The storage tank 3510 is vertically erected to partition the first reaction part 3300 and the second reaction part 3400. The neutralizing agent accommodating portion U is formed so that the neutralizing agent is contained therein and the lower end thereof is opened so that the neutralizing agent contained in the neutralizing agent accommodating portion U is moved to the accommodating portion 3600 and dissolved.

That is, the open lower end of the storage tank 3510 is located below the water surface of the neutralized liquid contained in the storage section 3600, and the neutralizing agent contained in the neutralization agent storage section U gradually moves downward by gravity, Lt; / RTI >

An inlet 3510-1 is formed at the upper end of the storage tank 3510 so that the neutralizing agent can be introduced into the neutralizing agent storage unit U from the outside of the inner case 3100. The inlet 3510-1 A cap 3130 for opening and closing is provided.

At this time, since the lower end of the storage tank 3510 is located below the water surface of the neutralizing liquid, when the neutralizing agent is replenished by opening the inlet 3510-1, noxious gas flows into the neutralizing agent accommodating portion U and leaks to the outside Can be prevented.

12 and 13, the bottom plate 3520 is positioned at the lower end of the storage tank 3510 so as to be spaced apart from the open lower end of the storage tank 3510 by a predetermined distance. The bottom plate 3520 is formed with side walls along the edge thereof so that the upper surface thereof is opened, and the open top surface is formed to have an area larger than the area of the open lower end of the storage tank 3510. When the open area of the bottom plate 3520 is large, the bottom plate 3520 and the bottom plate 3520 are spaced apart from each other by a predetermined distance, so that the neutralizing agent moved from the storage tank 3510 is spread widely on the bottom plate 3520 And distributed. Therefore, there is an advantage that the neutralizing agent can be rapidly dissolved in the neutralizing liquid.

Further, the bottom plate 3520 may be formed in a mesh shape to further shorten the time for which the neutralizing agent is dissolved in the neutralizing liquid.

Referring to FIGS. 13 and 14, the neutralization unit 3000 further includes a second cooling unit 3700. The second cooling portion 3700 is located between the bottom plate 3520 and the bottom surface of the receiving portion 3600. When the neutralizing agent is dissolved in the neutralizing liquid, the temperature of the neutralizing liquid rises. The second cooling unit 3700 is provided to lower the temperature of the rising neutralizing liquid.

The second cooling unit 3700 includes a refrigerant pipe 3710, a compressor 3720, a heat exchanger 3730 and a refrigerant plate 3740. The second cooling unit 3700 has the same configuration as the cooling unit 370 or a common refrigerator or heat exchange And therefore, detailed description thereof will be omitted.

Referring to FIG. 15, a discharge pipe 3010 communicating with the accommodating portion 3600 for discharging the neutralized liquid accommodated in the accommodating portion 3600 is formed. This is because when the neutralized liquid that has elapsed after a predetermined time is to be exchanged, the neutralized liquid contained in the accommodating portion 3600 can be discharged to the outside through the discharge pipe 3010.

Referring to FIG. 6, the refrigerant pipe 3740 and the refrigerant pipe 3710 may be detached from the receiving portion 3600. A refrigerant plate insertion hole 3700-1 communicating with the accommodation portion 3600 is formed on one side of the inner case 3100 and the refrigerant pipe 3710 is formed to be detachable. Accordingly, if it is necessary to replace the refrigerant pipe 3740 with the refrigerant pipe 3710, the neutralizing liquid is discharged through the discharge pipe 3010, the refrigerant pipe 3710 is separated from the refrigerant pipe 3740, Can be withdrawn from the receptacle 3600 and replaced.

The refrigerant pipe 3710 and the refrigerant plate 3740 are corroded due to the above-described structure, so that the refrigerant pipe 3710 and the refrigerant pipe 3740 can be replaced only when replacement is required.

One side of the inner case 3100 may be provided with a solution inlet 3020 which is communicated with the receptacle 3600 and into which the solution for dissolving the neutralizing agent may be introduced into the receptacle 3600.

4 to 6, the neutralizing unit 3000 may further include a dehumidifying unit 3800 for absorbing moisture contained in the noxious gas when the noxious gas is discharged to the discharge port 3120. The dehumidifying part 3800 is provided between the second reaction part 3400 and the discharge port 3120. In the interior of the dehumidifying part 380, fibers having a plurality of meshes are stacked, and the noxious gas passing through the fibers can be absorbed while passing through the fibers in which the neutralized noxious gas is deposited.

When the concentration of the neutralizing liquid is reduced or the neutralizing liquid is evaporated and the neutralizing liquid is supposed to be replenished, the neutralizing liquid or the neutralizing agent can be easily replenished and the intake air (noxious gas) The neutralization rate can be improved by secondary neutralization, and the neutralized air is dried so as not to contain the residual neutralizing liquid and discharged to the outside.

100: Experimental case 110: Door
200: Suction duct 300: First neutralization part
310: first reaction part 311: inlet
312: moving passage 313: partition wall
313-1: first barrier rib 312-2: second barrier rib
320: first nozzle 330: first receiving portion
350: First dehumidifying part 351: Outlet
352: first moisture absorbent 360: first filling part
370: cooling section 380: second dehumidifying section
381: second desiccant 382: air layer
383: third hygroscopic agent 400: exhaust duct
500: second neutralization part 510: second nozzle
520: second filling part
A: opening S: working space

Claims (7)

A door (110) for selectively opening and closing the opening (A), and an experimental case (100) having a predetermined space (S) formed therein;
A suction duct (200) formed at an upper end of the test case (100) and sucking noxious gas remaining in the work space (S);
A first neutralization unit 300 positioned at the lower end of the experimental case 100 to neutralize the noxious gas by injecting the noxious gas into the noxious gas to neutralize the noxious gas and discharge the noxious gas to the outside, ;
And an exhaust duct 400 for discharging the air neutralized and discharged in the first neutralization unit 300 to the outside,
The first neutralizing unit 300 includes an inlet 311 through which the noxious gas flows from the test case 100 and a partition 313 through which the noxious gas flows A first reaction unit 310 comprising a first reaction unit 310;
A first nozzle 320 for injecting a neutralizing liquid into the first reaction part 310 so that the noxious gas contained in the first reaction part 310 is neutralized;
A neutralizing liquid is supplied to the first nozzle 320 and a neutralizing liquid in which the neutralizing agent is dissolved is received and the remaining neutralizing liquid injected from the first nozzle 320 is communicated with the first reacting unit 310 A first receiving portion 330 in which an inlet 340 is formed;
After the noxious gas that has been neutralized in the first reaction unit 310 is received, the moisture absorbed in the noxious gas or the remaining neutralized liquid is separated, and the first moisture absorbent A first dehumidifier 350 having an outlet 351 connected to the outlet duct 400;
Wherein the harmful gas purifying apparatus comprises: delete The method according to claim 1,
The barrier ribs 313 include first barrier ribs 313-1 extending in the horizontal direction,
The first barrier rib 313-1 is spaced apart from the first barrier rib 313-1 by a predetermined distance to increase the movement distance of the noxious gas moving into the first reaction part 310, And a second partition 313-2 extending in a direction symmetrical to the first partition 313-1,
A plurality of first filling portions 360 for reducing the moving speed of the noxious gas are arranged in the moving passage 312 at predetermined intervals along the moving passage 312,
Wherein the first nozzle (320) is disposed in a spaced space between the first filling parts (360) to spray the neutralizing liquid. The method according to claim 1,
Further comprising a cooling unit (370) for cooling the neutralizing liquid so that the neutralizing liquid can maintain a uniform temperature uniformly in the first accommodating unit (330). The method according to claim 1,
The suction duct (200) is provided with a second neutralizing part (500) for injecting a neutralizing liquid into the noxious gas before the noxious gas is introduced into the first neutralizing part (300) in order to raise the neutralization rate of the noxious gas,
The second neutralization unit 500
A second nozzle 510 for receiving the neutralizing liquid from the first containing part 330 and injecting the neutralizing liquid into the second neutralizing part 500;
And a second filling part (520) located at a lower end of the second nozzle (510) for reducing the moving speed of the noxious gas moving to the first neutralizing part (300) Device. The method according to claim 1,
In the exhaust duct 400, a second desiccant 381 through which the noxious gas that has been neutralized is passed to remove residual moisture of the noxious gas discharged from the first dehumidifier 350,
And a second dehumidifier 380 including a third desiccant 383 spaced apart from the second desiccant 381 such that an air layer 382 is formed on the second desiccant 381 Characterized by the harmful gas purification device. The method according to claim 1,
The first receiving part 330 is provided with a charging port 331 at one side thereof for injecting a neutralizing agent from the outside and has a partition wall 332 surrounding the inlet 340,
The partition wall 332 is provided at one side of the partition wall 332 so as to prevent the remainder of the neutralizing agent from moving into the first containing portion 330 when the neutralizer introduced at the inlet 331 is dissolved in the first containing portion 330 And a filtration unit (333).
KR1020160040921A 2016-04-04 2016-04-04 The Noxious gas cleaning system KR101636372B1 (en)

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CN108479348A (en) * 2018-04-19 2018-09-04 合肥职业技术学院 A kind of novel environment friendly emission-control equipment
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CN108211526A (en) * 2017-05-02 2018-06-29 中国石油化工股份有限公司 Harmful influence leaks emergency disposal system
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KR102261002B1 (en) * 2021-02-09 2021-06-04 (주)덕산레미콘 Absorption device to reduce atmospheric harmful substances

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