KR101644604B1 - Toxicity testing device for harmful gas - Google Patents

Toxicity testing device for harmful gas Download PDF

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Publication number
KR101644604B1
KR101644604B1 KR1020150147457A KR20150147457A KR101644604B1 KR 101644604 B1 KR101644604 B1 KR 101644604B1 KR 1020150147457 A KR1020150147457 A KR 1020150147457A KR 20150147457 A KR20150147457 A KR 20150147457A KR 101644604 B1 KR101644604 B1 KR 101644604B1
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KR
South Korea
Prior art keywords
test case
noxious gas
fan
test
case
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KR1020150147457A
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Korean (ko)
Inventor
이희정
이병칠
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이병칠
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/5005—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells
    • G01N33/5008—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics
    • G01N33/5082—Supracellular entities, e.g. tissue, organisms
    • G01N33/5088—Supracellular entities, e.g. tissue, organisms of vertebrates
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K67/00—Rearing or breeding animals, not otherwise provided for; New breeds of animals
    • A01K67/02—Breeding vertebrates
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/10—Means to control humidity and/or other gases

Abstract

A toxicity testing device for harmful gas of the present invention comprises: a base; a test case installed on the base, having a door member, and accommodating a test object; a supply pipe connected to the test case to supply harmful gas; a valve installed on the supply pipe and controlling an amount of the supplied harmful gas; an environment case installed on the base to prevent the harmful gas leaked from the test case from being spread indoors; a sensing unit for transmitting a concentration signal by measuring the concentration of the harmful gas filled in the test case or the environment case; and a control unit for receiving the concentration signal inputted from the sensing unit, transmitting a block signal to the valve if the concentration of the harmful gas filled in the test case or the environment case exceeds a set value, and transmitting a driving signal to discharge the harmful gas to the outside of a laboratory from the environment case. The toxicity testing device for harmful gas and a controlling method thereof according to the present invention promote safety of a worker and simultaneously facilitate work such as accommodation of a test object, replacement of a component, or the like.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a toxicity testing apparatus for harmful gas,

The present invention relates to a toxicity test apparatus for toxic gases and a control method thereof, and more particularly to a toxicity test apparatus for toxic gases, which can observe changes in laboratory animals or cells while providing a concentration of harmful gases such as carbon monoxide To a toxicity test apparatus for toxic gases capable of easily maintaining the concentration of harmful gas throughout the space and easily replacing parts of a test apparatus and a control method thereof.

2. Description of the Related Art In general, there are known two methods of inhalation experiment for examining the effect of a drug on a living body by administering a drug to a small laboratory animal such as a rat, a mouse or a guinea pig, .

In the whole body exposure method, an experimental animal is housed in an experimental container, sealed, and the test substance is supplied from one side of the container, and the mixed gas of the residual gas of the test substance and the exhalation gas of the test animal is discharged from the other side.

The non-exposure method is a method for exposing the test substance-containing air to an air-permeable inner tube, a non-exposed nozzle mounted on the inner-air tube, and a gas- And an experimental animal holder attached to an outer tube at a position opposite to the bosom exposing nozzle, and the experimental material from the bosom exposed nozzle is injected into the experimental animal by the inspiration of the experimental animal.

Among them, since the test chamber is large and accommodates a large number of cages therein, it is difficult to observe the appearance of each animal from the outside and requires a large amount of facility cost, Is suitable for exposure experiments using expensive test materials or small test materials because they can be tested at smaller exposure volumes than systemic exposure methods.

On the other hand, in the nasal exposure method, the experimental animals are restrained in the cylindrical holder for a long period of time, thereby giving stress to the experimental animals such as suppression of weight gain, thereby affecting the reliability of the test results. And it is not preferable from the viewpoint of animal welfare.

In order to solve the above-mentioned problems, when a whole body exposure test chamber has been developed, the chamber for whole body exposure test according to the related art has a bottom plate, a side plate rising from the peripheral edge of the bottom plate, A net bottom provided with a space between the bottom plate and the bottom plate in the lower part of the breeding box so as to be accommodated with an experimental animal; An air outlet member attached to the bottom of the breeding box so as to pass through the bottom plate of the breeding box and connected to an exhaust pipe for sucking air in the breeding box, a top plate, an inclined side plate extending downward from the periphery of the top plate, And an opening surrounded by the lower edge of the inclined side plate, and the opening is hermetically joined with the opening of the feeding box, And a feed mechanism member attached to the top plate of the hopper so as to penetrate the top plate and connected to a feed pipe for feeding the gas to be tested in the feeding box.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Registration No. 10-1476635 (entitled "Whole Body Exposure Chamber" and "Whole Body Exposure Test Apparatus Using the same", published on Dec. 29, 2014, entitled "

In the test apparatus according to the related art, since the gas supply mechanism for supplying gas is installed at the upper end and the exhaust port is installed at the lower end, when the amount of supply is not raised above the set value, It is difficult to provide a uniform concentration of gas in the space and it is difficult to carry out a precise test.

In addition, in the test apparatus according to the related art, when a separate circulating apparatus for uniformly maintaining the gas concentration in the entirety of the experimental space is installed, if a failure occurs in the circulating apparatus used for a long period of time, There is a problem that it is difficult to reduce the time required to stop the test.

Therefore, there is a need for improvement.

The present invention can observe changes in laboratory animals or cells while keeping the concentration of harmful gas such as carbon monoxide within the set range, maintain the harmful gas concentration uniform throughout the test space, facilitate the replacement of parts of the test apparatus The present invention also provides a toxicity test apparatus for toxic gases and a control method thereof.

The present invention relates to a semiconductor device comprising a base; A test case installed in the base and having a door member and receiving a test object; A supply pipe connected to the test case to supply noxious gas; A valve installed in the supply pipe and regulating a supply amount of the noxious gas; An environmental case installed on the base to prevent harmful gas lost from the test case from spreading into the room; A sensing unit for measuring a concentration of noxious gas to be filled in the test case or the environmental case and transmitting a concentration signal; And a concentration signal input from the sensing unit. When the concentration of the noxious gas filled in the test case or the environmental case exceeds a predetermined value, a shutoff signal is transmitted to the valve, and noxious gas is discharged from the environmental case to the outside And a control unit for transmitting a driving signal for discharging the driving signal.

The environmental case of the present invention may further include a finishing panel installed on the base so as to face one surface of the test case; A main body coupled to the finishing panel, the main body having a plurality of surfaces to provide a closed space and installed on the base; And a mounting portion for detachably connecting the main body or the finishing panel to the base.

The mounting portion of the present invention may further include: a first sliding groove portion formed in the base; A first rail provided on the finishing panel to be inserted into the first sliding groove; A second sliding groove portion formed on the base to intersect with the first sliding groove portion; And a second rail portion provided in the main body portion to be inserted into the second sliding groove portion.

Further, the present invention may further include a circulation unit for uniformly dispersing noxious gas flowing into the test case throughout the test case, wherein the circulation unit includes: a first fan that press-feeds the noxious gas discharged from the supply pipe to one side; And a second fan that press-feeds the noxious gas discharged from the supply pipe to the other side.

Further, in the test case of the present invention, a service door detachably connected to the circulation part is installed, and the service door is provided with a connection part for detachably connecting the supply pipe to the service door or a connection part for detachably attaching the circulation part to the service door And a replaceable part for connecting the two parts.

Further, the connection part of the present invention may include: a coupling panel installed on the supply pipe; And a guide member slidably inserted into the coupling panel and closely fitting the supply pipe to the coupling hole portion of the service door.

The replacement unit may further include: a guide rail provided on the service door; And a mounting panel slidably coupled along the guide rail and having a through hole through which the first fan and the second fan are installed and which is connected to the supply pipe.

In addition, the service door of the present invention is installed on the upper surface of the test case, and the second fan is installed on an extension extending from the installation panel.

Further, the service door of the present invention is installed on one side of the test case, the first fan is positioned at an upper end of the installation panel, and the second fan is positioned at a lower end of the installation panel .

According to another aspect of the present invention, there is provided a method of testing a test object, comprising the steps of: (a) installing an environmental case for accommodating a test object in a test case and surrounding the test case; (b) supplying noxious gas into the test case when the installation of the environmental case is completed; (c) uniformly distributing the noxious gas supplied to the test case to the test case when noxious gas is supplied to the test case; (d) determining whether the concentration of the noxious gas in the test case exceeds an upper limit value when the circulation unit is driven; (e) blocking the supply of noxious gas to the test case when the noxious gas concentration in the test case exceeds an upper limit value; And (f) determining whether the concentration of the noxious gas in the test case is less than a lower limit value when the noxious gas supply is interrupted in the test case.

The toxic test apparatus for toxic gas according to the present invention and the control method thereof include an environmental case for enclosing a test case in which test objects such as laboratory animals or cells are housed and a noxious gas is supplied, It is possible to prevent the inside from being lost and there is an advantage that the safety of the operator can be achieved.

In addition, the toxic gas toxicity testing apparatus and its control method according to the present invention include a mounting portion for detachably mounting an environmental case on a base on which a test case is installed, and a connection portion for detachably connecting the supply case and the test case, It is possible to easily carry out work such as storage of a test object, replacement of parts, and the like.

In addition, since the toxicity testing apparatus for toxic gases according to the present invention and the control method thereof are provided with the circulation section for evenly distributing the noxious gas supplied into the test case throughout the test case, even if the test case is formed long in the lateral direction, It is possible to uniformly distribute the harmful gas to both ends of the test case and to the upper and lower ends of the test case so that harmful gas evenly contacts the test object accommodated in the test case and the concentration of the harmful gas in the test case is low There is an advantage that an erroneous operation caused by the movement of the test object can be prevented.

In addition, the toxicity testing apparatus for toxic gases and the control method thereof according to the present invention include a service door capable of replacing the circulation unit and a replacement unit detachably connecting the circulation unit to the service door, It is possible to separate the environmental case from the base and to reduce the time and cost required for replacement of the circulation part by the action of the service door and the replacement part and to suppress the test interruption due to the occurrence of the failure of the circulation part There is an advantage.

1 is a perspective view showing a toxicity testing apparatus for noxious gas according to a first embodiment of the present invention.
2 is a flowchart showing a control method of the toxicity testing apparatus for toxic gases according to the first embodiment of the present invention.
3 is a perspective view showing a toxicity testing apparatus for toxic gases according to a second embodiment of the present invention.
4 is an exploded perspective view showing a toxicity test apparatus for toxic gases according to a second embodiment of the present invention.
5 is a perspective view showing a toxicity testing apparatus for toxic gases according to a third embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a toxicity test apparatus for toxic gases according to the present invention and a control method thereof will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator.

Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a perspective view showing a toxicity testing apparatus for toxic gases according to a first embodiment of the present invention, FIG. 2 is a flowchart showing a method of controlling a toxicity testing apparatus for toxic gases according to a first embodiment of the present invention .

1 and 2, the toxicity testing apparatus for toxic gases according to the first embodiment of the present invention comprises a base 10, a door member 31 provided on the base 10, A supply pipe 56 connected to the test case 30 to supply the noxious gas; a valve 58 provided in the supply pipe 56 for adjusting the supply amount of the noxious gas; The environmental case 50 installed in the base 10 and the concentration of the noxious gas filled in the test case 30 or the environmental case 50 are measured so as to prevent the noxious gas lost from the room 30 from spreading in the room And a control unit which receives a concentration signal inputted from the sensing unit 102 and outputs a concentration signal when the concentration of the noxious gas filled in the test case 30 or the environmental case 50 exceeds a set value, 58, and sends out the noxious gas from the environmental case 50 With a control unit 100 for transmitting a driving signal to the Laboratory discharged to the outside.

The test apparatus according to the present embodiment is a device for uniformly supplying carbon monoxide to the inside of the test case 30 in a state in which a test object such as a test animal or a cell is housed in the test case 30 to observe a change in the test object, An environmental case (50) enclosing the test case (30) is provided to prevent carbon monoxide harmful to the human body from spreading inside the test chamber, thereby preventing the operator from being injured by carbon monoxide.

The present embodiment is also provided with a sensing unit 102 for measuring and transmitting the concentration of carbon monoxide filled in the test case 30 or the environmental case 50, The concentration of carbon monoxide filled in the test case 30 can be maintained within the set range.

Therefore, it is possible to prevent an erroneous operation in which carbon monoxide is supplied more than necessary and it becomes difficult to observe the change of the test object, and it is possible to prevent the erroneous operation in which the concentration of carbon monoxide is supplied below the set range, .

The test case 30 is formed in a small size as compared with the environmental case 50 and fixedly mounted on the upper surface of the base 10. The door member 31 is openably and closably provided on the front surface, So that the test object can be stored in the test case 30.

The present embodiment further includes a circulation unit 90 for uniformly dispersing the noxious gas introduced into the test case 30 into the test case 30 so that carbon monoxide flowing into the test case 30 is tested It is possible to uniformly disperse the entirety of the case 30 so that the state of the test object can not be easily determined by moving the test object to the corner of the test case 30 having a low carbon monoxide concentration when the test object is an animal So that the problem can be solved.

The circulation unit 90 includes a first fan 92 for feeding the noxious gas discharged from the supply pipe 56 to one side and a second fan 94 for feeding the noxious gas discharged from the supply pipe 56 to the other side, The carbon monoxide discharged from the supply pipe 56 is circulated to the one side of the test case 30 by the first fan 92 and circulated to the other side of the test case 30 by the second fan 94, The carbon monoxide can be uniformly dispersed throughout the case 30.

The operation block 34 installed in the test case 30 of the present embodiment is provided with a display portion 34a so that the operator can visually confirm the concentration inside the test case 30 and the display portion 34a, It is possible to confirm whether or not the concentration of carbon monoxide is out of the set range in accordance with the output signal displayed from the fuel cell.

The reference numerals 32 and 32a denote a plurality of discharge hole portions 32 formed in the test case 30 and a stopper member 32a provided in a part of the plurality of discharge hole portions 32 to reduce the cross sectional area of the discharge hole portion 32. [ to be.

A control method of the toxicity testing apparatus for harmful gas according to the first embodiment of the present invention will be described as follows.

A method of controlling a toxicity test apparatus for toxic gases according to a first embodiment of the present invention includes the steps of installing an environmental case 50 for storing a test object in a test case 30 and enclosing the test case 30, The method comprising the steps of supplying noxious gas into the test case 30 when the installation of the environmental case 50 is completed and supplying noxious gas to the test case 30 when the noxious gas is supplied to the test case 30 (30); determining whether the concentration of noxious gas in the test case (30) exceeds an upper limit value when the circulation unit (90) is driven; and controlling the concentration of noxious gas in the test case And stopping the supply of the noxious gas to the test case 30 when the supply of the noxious gas to the test case 30 is stopped and determining whether the concentration of the noxious gas in the test case 30 is lower than the lower limit value .

First, the operator opens the door member 31 to store the test object in the test case 30, closes the door member 31, and installs the environmental case 50 on the base 10.

Thereafter, when the operator operates the control box provided with the control unit 100 or transmits a drive signal to the operation block 34 by operating a remote controller or the like, the carbon monoxide supplied through the control box passes through the valve 58 Passes through the environmental case 50 and is supplied into the test case 30.

When the supply of carbon monoxide is started, the first fan 92 and the second fan 94 are driven according to the drive signal transmitted from the control unit 100, so that carbon monoxide is uniformly supplied to the entirety of the test case 30.

When the supply of carbon monoxide is started, the concentration of carbon monoxide is detected by the first sensor 102a installed in the test case 30 and the second sensor 102b installed in the environmental case 50, and the first sensor 102a, And the density signal transmitted from the second sensor 102b are received by the control unit 100 and displayed on the display unit 34a.

When the concentration of carbon monoxide in the test case 30 exceeds the upper limit value, a stop signal is transmitted from the control unit 100 and the valve 58 is shut off.

When the concentration signal transmitted from the second sensor 102b exceeds the set value, the control unit 100 transmits the rotor emergency signal. After the valve 58 is shut off, the exhaust pipe 54a, which is installed in the finish panel 54, The exhaust fan 54b installed in the exhaust pipe 54a is driven so that carbon monoxide is discharged to the outside of the test room.

It is possible to observe a change in the test object accommodated in the test case 30 while preventing the carbon monoxide from being lost in the test chamber by the above operation.

FIG. 3 is a perspective view illustrating a toxicity testing apparatus for toxic gases according to a second embodiment of the present invention, and FIG. 4 is an exploded perspective view illustrating a toxicity testing apparatus for toxic gases according to a second embodiment of the present invention.

3 and 4, the environmental case 50 of the toxicity testing apparatus for toxic gases according to the second embodiment of the present invention includes a test case 30, A body portion 52 coupled to the finishing panel 54 to provide a closed space and having a plurality of surfaces and being mounted to the base 10 and a body portion 52 or a finishing panel 54 And a mounting portion 70 detachably connecting to the base 10.

A finish panel 54 is provided so as to face the test case 30 and the finish panel 54 and the main body 52 are coupled to each other to mount the test case 30 on the upper surface of the base 10, As shown in Fig.

Therefore, when the worker places the test object in the test case 30 or replaces the parts installed in the test case 30, the mounting portion 70 is operated to separate the environment case 50 from the base 10 It is possible to easily perform the storing operation or the replacing operation in the test case 30.

The mounting portion 70 includes a first sliding groove portion 72 formed in the base 10, a first rail portion 74 provided on the finishing panel 54 to be inserted into the first sliding groove portion 72, A second sliding groove portion 76 formed on the base 10 so as to intersect the first sliding groove portion 72 and a second rail portion 77 provided on the body portion 52 to be inserted into the second sliding groove portion 76, .

The first sliding groove portion 72 is formed on the upper surface of the base 10 in the front and rear direction and is formed on one side of the base 10 and the second sliding groove portion 76 is formed on the front side of the base 10 and the rear side And is formed so as to intersect with the front end portion and the rear end portion of the first sliding groove portion 72 so as to be orthogonal to each other.

Accordingly, the first sliding groove portion 72 and the pair of second sliding groove portions 76 have a planar shape, and the first rail 74 formed at the lower end of the finishing panel 54 When the main body portion 52 is engaged along the pair of second sliding groove portions 76 after the insertion into the first sliding groove portion 72, the finishing panel 54 is inserted along the opened surface of the main body portion 52 The installation of the environmental case 50 surrounding the test case 30 is completed.

Thereafter, when the finishing block 79 is slidably inserted into the stepped portion 78 formed at the other end of the upper surface of the base 10, the finishing block 79 restrains the other end of the main body 52, 52 and the finishing panel 54 are firmly coupled to each other, it is possible to prevent the carbon monoxide from being lost to the outside of the environmental case 50.

A sealing member is provided between the main body 52 and the finishing panel 54 and the base 10 so that a person skilled in the art can easily carry out the present invention. .

A service door 86 is detachably connected to the test case 30 so as to be openable and closable and a service door 86 is provided with a connection portion 80 for detachably connecting the supply pipe 56 Or a replacement part 96 detachably connecting the circulation part 90 to the service door 86 is provided.

The connecting portion 80 is provided with a connecting panel 82 provided on the supply pipe 56 and a guide plate 82 on which the connecting panel 82 is slid and inserted and the supply pipe 56 is brought into close contact with the engaging hole portion 88 of the service door 86 When the main body portion 52 is slid along the second sliding groove portion 76 and the coupling panel 82 is inserted into the guide member 84 while the supply pipe 56 and the service door 86 As shown in FIG.

An inclined surface 82a is formed at an end of the coupling panel 82. A detachable groove portion 82b is formed on the upper surface of the coupling panel 82 and inserted into the detachable groove portion 82b on the inner surface of the upper surface of the guide member 84 The detachment protrusion 84a is formed so that when the operator slides the main body 52 and the engaging panel 82 is inserted into the guide member 84, the end of the engaging panel 82 and the guide member 82 84 are prevented from interfering with each other and when the insertion of the coupling panel 82 is completed, the detachable protrusion 84a is inserted into the detachable groove portion 82b so that the operator feels the detachment feeling.

Since the detachable protrusion 84a presses the engaging panel 82 toward the engaging hole 88 while the detachable protrusion 84a is inserted into the detachable slot 82b, the supply tube 56 and the service door 86 are closed, It is possible to prevent the carbon monoxide from being lost at intervals of a predetermined time.

The replacing portion 96 includes a guide rail 96a provided in the service door 86 and a first fan 92 and a second fan 94 slidably coupled along the guide rail 96a, And an installation panel 96b in which a through hole portion 96c communicating with the through hole 56c is formed.

A pair of guide rails 96a are formed on the bottom of the service door 86 and a mounting panel 96b is provided to be engaged when the pair of guide rails 96a are slid at a distance between the pair of guide rails 96a, Since the first fan 92, the extension 94a and the second fan 94 are installed, when a failure occurs in the first fan 92 or the second fan 94, The replacement operation of the first fan 92 and the second fan 94 can be completed by a simple operation of opening the installation panel 96b and replacing the installation panel 96b.

Therefore, the first fan (92) and the second fan (94) can be replaced within a short time without interrupting the toxic gas toxicity test, thereby restraining the interruption of the toxic gas toxicity test due to failure of the test apparatus .

The operation block 34 installed in the test case 30 of the present embodiment is provided with a display portion 34a so that the operator can visually confirm the concentration inside the test case 30 and the display portion 34a, It is possible to confirm whether or not the concentration of carbon monoxide is out of the set range in accordance with the output signal displayed from the fuel cell.

The cable 36 extending from the operation block 34 is connected to the first connection block 36a provided on the upper surface of the base 10 and the first connection block 36a is connected to the main body 52 The first connection block 36a and the second connection block 36b are in close contact with each other and are electrically connected to each other, A cable 36 extending from the first connection block 34 and a cable 36 extending from the second connection block 36b to the control unit 100 are connected and output to the display unit 34a according to a signal transmitted from the control unit 100 The signal can be displayed.

In addition, the supply pipe 56 is provided with a valve 58 for controlling the supply of carbon monoxide and the supply of carbon monoxide. The control unit 100 can set the upper limit for shutting off the valve 58 in steps, The degree of opening of the blocking panel 58a is cut off by one step and then the primary warning signal is outputted to the display unit 34a. If the degree of opening of the blocking panel 58a is exceeded, The second warning signal is output to the first control unit 34a. When the third upper limit value is exceeded, the shutoff panel 58a is closed, and then the third warning signal is output to stop the carbon monoxide supply step by step.

5 is a perspective view showing a toxicity testing apparatus for toxic gases according to a third embodiment of the present invention.

Referring to FIG. 5, a service door 86 of the toxic gas toxicity testing apparatus according to another embodiment of the present invention is installed on one side of the test case 30, and the first fan 92 is installed Is positioned at the upper end of the panel 96b, and the second fan 94 is positioned at the lower end of the installation panel 96b.

This embodiment is characterized in that the supply pipe 56 is connected to the side surface of the test case 30 and the service door 86 is also installed on the side of the test case 30, And a connection portion 80 is provided on an outer wall of the service door 86. [

The present embodiment is characterized in that the first fan 92 and the second fan 94 provided on the installation panel 96b are installed at the upper part and the lower part and a part of the carbon monoxide discharged from the supply pipe 56 The remaining part of the carbon monoxide discharged from the supply pipe 56 is circulated to the upper part of the test case 30 by the driving of the first fan 92, And is uniformly dispersed in the test case 30.

This makes it possible to observe changes in laboratory animals or cells while keeping the concentration of harmful gases such as carbon monoxide within the set range, to keep the concentration of harmful gas uniform throughout the test space, It is possible to provide a toxicity test apparatus for toxic gases and a control method thereof.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

In addition, the toxicity testing apparatus for toxic gas and the control method thereof have been described as an example, but this is merely an illustrative example, and the test apparatus of the present invention and the control method thereof are also applicable to the toxicity testing apparatus for toxic gas and other products Can be used.

Accordingly, the true scope of the present invention should be determined by the following claims.

10: Base 30: Test Case
31: door member 32: discharge hole portion
32a: plug member 34: operation block
34a: display portion 36: cable
36a: first connection block 36b: second connection block
50: environmental case 52:
54: Finishing panel 54a: Exhaust pipe
54b: ventilation fan 56: supply pipe
58: valve 58a:
58b: motor 70:
72: first sliding groove portion 74: first sliding portion
76: second sliding groove portion 77: second rail portion
78: Step 79: Finishing block
80: connection part 82: engagement panel
82a: inclined surface 82b: attaching / detaching groove
84: guide member 84a: detachment projection
86: Service door 88:
90: circulation part 92: first fan
94: second fan 94a: extension
96: Replacement portion 96a: Guide rail
96b: installation panel 96c: through hole portion
100: control unit 102: sensing unit
102a: first sensor 102b: second sensor

Claims (10)

Base;
A test case installed in the base and having a door member and receiving a test object;
A supply pipe connected to the test case to supply noxious gas;
A valve installed in the supply pipe and regulating a supply amount of the noxious gas;
An environmental case installed on the base to prevent harmful gas lost from the test case from spreading into the room;
A sensing unit for measuring a concentration of noxious gas to be filled in the test case or the environmental case and transmitting a concentration signal; And
A concentration signal input from the sensing unit is received and a shutoff signal is transmitted to the valve when the concentration of the noxious gas filled in the test case or the environmental case exceeds a set value, And a control unit for transmitting a driving signal for discharging,
Further comprising a circulation unit for uniformly dispersing noxious gas flowing into the test case throughout the test case,
The circulation unit includes:
A first fan for feeding the noxious gas discharged from the supply pipe to one side; And
And a second fan for feeding the noxious gas discharged from the supply pipe to the other side,
The second fan is installed in an extension extending to the inside of the test case so as to be spaced apart from the first fan,
A plurality of discharge holes are formed in the test case, and the discharge hole portion is provided with a stopper member for closing a part of the plurality of discharge hole portions to reduce a cross-sectional area of the discharge hole portion,
Wherein the test case is provided with a service door detachably connected to the circulation part and installed to be openable and closable,
Wherein the service door is provided with a connection part for detachably connecting the supply pipe or a replacement part for detachably connecting the circulation part to the service door.
The electronic apparatus according to claim 1,
A finish panel installed on the base so as to face one surface of the test case;
A main body coupled to the finishing panel, the main body having a plurality of surfaces to provide a closed space and installed on the base; And
And a mounting portion detachably connecting the main body or the finishing panel to the base.
The connector according to claim 2,
A first sliding groove formed in the base;
A first rail provided on the finishing panel to be inserted into the first sliding groove;
A second sliding groove portion formed on the base to intersect with the first sliding groove portion; And
And a second rail portion provided in the main body portion to be inserted into the second sliding groove portion.
delete delete The connector according to claim 1,
A coupling panel installed on the supply pipe; And
And a guide member slidably inserted into the joint panel and closely fitting the supply pipe to the joint hole portion of the service door.
The apparatus according to claim 1,
A guide rail provided on the service door; And
And an installation panel slidably coupled along the guide rail and having a through hole formed therein for connecting the first fan and the second fan and communicating with the supply pipe.
8. The method of claim 7,
Wherein the service door is installed on an upper surface of the test case, and the second fan is installed on an extension extending from the installation panel.
8. The method of claim 7,
Wherein the service door is installed on one side of the test case, the first fan is positioned at an upper end of the installation panel, and the second fan is positioned at a lower end of the installation panel. Device.
(a) installing an environmental case for accommodating a test object in a test case and surrounding the test case;
(b) supplying noxious gas into the test case when the installation of the environmental case is completed;
(c) uniformly distributing the noxious gas supplied to the test case to the test case when noxious gas is supplied to the test case;
(d) determining whether the concentration of the noxious gas in the test case exceeds an upper limit value when the circulation unit is driven;
(e) blocking the supply of noxious gas to the test case when the noxious gas concentration in the test case exceeds an upper limit value; And
(f) determining whether the concentration of the noxious gas in the test case is less than a lower limit value when the noxious gas supply is interrupted in the test case,
Wherein the step (c) comprises: a circulation part for uniformly dispersing noxious gas introduced into the test case throughout the test case,
The circulation unit includes:
A first fan for feeding the noxious gas discharged from the supply pipe to one side; And
And a second fan for feeding the noxious gas discharged from the supply pipe to the other side,
The second fan is installed in an extension extending to the inside of the test case so as to be spaced apart from the first fan,
A plurality of discharge holes are formed in the test case, and the discharge hole portion is provided with a stopper member for closing a part of the plurality of discharge hole portions to reduce a cross-sectional area of the discharge hole portion,
Wherein the test case is provided with a service door detachably connected to the circulation part and installed to be openable and closable,
Wherein the service door is provided with a connection part for detachably connecting the supply pipe or a replacement part for detachably connecting the circulation part to the service door.
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CN110411771A (en) * 2019-08-01 2019-11-05 山东省计量科学研究院 Refrigerator product automatic overflow experimental rig
CN110595992A (en) * 2019-10-14 2019-12-20 重庆阿泰可环境可靠性检测技术有限公司 Salt spray test device
KR20210040504A (en) * 2019-10-04 2021-04-14 창원대학교 산학협력단 Chamber for Diagnosis of Chemical Accident Damage
KR102563930B1 (en) * 2023-01-02 2023-08-04 김근홍 Gas measuring device with a function of automatically removing the test gas
CN117136857A (en) * 2023-10-23 2023-12-01 佳木斯大学 Sampling device for small animal breath experiment

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Publication number Priority date Publication date Assignee Title
CN110411771A (en) * 2019-08-01 2019-11-05 山东省计量科学研究院 Refrigerator product automatic overflow experimental rig
CN110411771B (en) * 2019-08-01 2024-03-26 山东省计量科学研究院 Automatic overflow test device for refrigerator products
KR20210040504A (en) * 2019-10-04 2021-04-14 창원대학교 산학협력단 Chamber for Diagnosis of Chemical Accident Damage
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KR102563930B1 (en) * 2023-01-02 2023-08-04 김근홍 Gas measuring device with a function of automatically removing the test gas
CN117136857A (en) * 2023-10-23 2023-12-01 佳木斯大学 Sampling device for small animal breath experiment
CN117136857B (en) * 2023-10-23 2024-01-09 佳木斯大学 Sampling device for small animal breath experiment

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