CN112245063B - Swift quiet electric welding waste gas inhales toxicity experimental apparatus - Google Patents
Swift quiet electric welding waste gas inhales toxicity experimental apparatus Download PDFInfo
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- CN112245063B CN112245063B CN202011295701.4A CN202011295701A CN112245063B CN 112245063 B CN112245063 B CN 112245063B CN 202011295701 A CN202011295701 A CN 202011295701A CN 112245063 B CN112245063 B CN 112245063B
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- 238000003466 welding Methods 0.000 title claims abstract description 174
- 239000002912 waste gas Substances 0.000 title claims abstract description 53
- 231100000419 toxicity Toxicity 0.000 title claims abstract description 10
- 230000001988 toxicity Effects 0.000 title claims abstract description 10
- 238000002474 experimental method Methods 0.000 claims abstract description 89
- 238000011109 contamination Methods 0.000 claims abstract description 75
- 230000003068 static effect Effects 0.000 claims abstract description 32
- 231100000016 inhalation toxicity Toxicity 0.000 claims abstract description 30
- 238000010171 animal model Methods 0.000 claims abstract description 24
- 241001465754 Metazoa Species 0.000 claims abstract description 16
- 238000005192 partition Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 9
- 231100000037 inhalation toxicity test Toxicity 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 238000002834 transmittance Methods 0.000 claims description 5
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 239000012811 non-conductive material Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 239000012945 sealing adhesive Substances 0.000 claims description 2
- 239000003053 toxin Substances 0.000 claims description 2
- 231100000765 toxin Toxicity 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 239000000725 suspension Substances 0.000 claims 1
- 238000011160 research Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 6
- 235000004443 Ricinus communis Nutrition 0.000 description 4
- 231100000820 toxicity test Toxicity 0.000 description 2
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 231100000828 respiratory toxicity Toxicity 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D7/00—Devices or methods for introducing solid, liquid, or gaseous remedies or other materials into or onto the bodies of animals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Devices For Use In Laboratory Experiments (AREA)
- Housing For Livestock And Birds (AREA)
Abstract
The invention provides a rapid static electric welding waste gas inhalation toxicity experiment device, which comprises a toxicity contamination cabinet body which is arranged on a cabinet body support and consists of a cabinet body bottom plate, a cabinet body side plate and a cabinet body top plate, wherein the inside of the toxicity contamination cabinet body is partitioned into a front space and a rear space by a shading partition plate, an experimental animal and an animal cage are arranged at the rear part of the toxicity contamination cabinet body, an experimental bench with a welding module is arranged at the front part of the toxicity contamination cabinet body, an operator holds an electric welding handle of an electric welding clamp on the cabinet body top plate through rubber gloves on the cabinet body side plate to carry out electric welding, waste gas generated by the electric welding carries out inhalation toxicity exposure experiment on the experimental animal, a goggles window is arranged on a movable cabinet door of the toxicity contamination cabinet body, and an electric welding experiment parameter and an environment parameter in the toxicity contamination cabinet body are regulated and controlled in real time by a control system comprising an internal circuit control device and a display instrument at the upper part of the toxicity contamination cabinet body to finish static electric welding waste gas inhalation toxicity experiment. The beneficial effects of the invention are as follows: the static electric welding waste gas inhalation toxicity experiment is conveniently and rapidly carried out, and the scientific research experiment requirements for electric welding waste gas inhalation toxicity research and prevention are met.
Description
Technical Field
The invention relates to a rapid static electric welding waste gas inhalation toxicity experimental device. .
Background
With the development of scientific research on respiratory diseases, more and more pathological researches need to carry out respiratory toxicity experiments to verify the degree of influence of certain gaseous substances and the like on human hazards, especially the influence of welding waste gas generated by daily electric welding operation on the human hazards of operators and nearby personnel, the traditional technology is to collect the waste gas generated by welding while carrying out electric welding in an independent large closed space, then take the waste gas to a detection room to detect the waste gas by corresponding detection equipment, so as to analyze the influence of the welding waste gas on human hazards, and because the welding waste gas is welded and collected in the large closed space, the field hazards of the operators and the detection personnel are larger, and because the space is large, the waste gas distribution is uneven, the concentration of the collected waste gas is not definite, and if the small space distribution uniformity is improved, but the harm of the operators and the detection personnel is extremely serious, the irreconcilable contradiction is brought to the application of scientific research institutions and the scientific experiments, so that the harm of the welding waste gas to the operators is avoided, and the accurate detection and analysis of the harm of the welding waste gas to human hazards is urgent to develop a current device for sucking toxicity experiment of the welding waste gas. .
Disclosure of Invention
In order to solve the problems, the invention aims to provide a rapid static type electric welding waste gas inhalation toxicity experiment device, an operator holds an electric welding handle under the condition of isolating the gas outside the cabin of a contamination cabinet body to freely operate an electric welding pliers with an electric welding rod to carry out electric welding operation on a welding module arranged on an experiment bench, and the generated electric welding waste gas carries out inhalation toxicity experiment on experimental animals in the same closed environment.
In order to achieve the above purpose, the technical scheme of the invention is to provide a quick static electric welding waste gas inhalation toxicity experiment device, which comprises a contamination cabinet body arranged on a cabinet body bracket with movable casters, wherein the contamination cabinet body is a sealed cabin body consisting of a cabinet body bottom plate, a cabinet body side plate and a cabinet body top plate, the sealed cabin body is provided with an air inlet pipe and an air outlet pipe, experimental animals can be accommodated to carry out static welding waste gas inhalation toxicity experiment under the monitoring and control of a control system, a shading baffle plate positioned at the middle bottom of the contamination cabinet body divides the contamination cabinet body into a front space and a rear space which are communicated with each other at the upper part, an animal cage for the experimental animals is arranged in the rear space to carry out inhalation toxicity exposure on the experimental animals, an experiment bench capable of freely translating and adjusting the height is arranged on the upper surface of the cabinet body bottom plate, the experiment bench is provided with a welding module connected with a grounding electrode arranged below a side plate of the cabinet body through a connecting wire, a top plate of the cabinet body right above the welding module is provided with an electrode holder hung on a live wire electrode through a spiral wire, an electric welding handle of the electrode holder is close to a rubber glove arranged on the side plate of the cabinet body and arranged by a sealing rubber ring, an operator holds the electric welding handle to freely operate the electrode holder with the welding electrode under the condition of isolating the gas outside a cabin of the contamination cabinet body to perform electric welding operation on the welding module arranged on the experiment bench to generate electric welding waste gas to perform inhalation toxicity experiment on experimental animals, a movable cabinet door capable of being opened, closed and locked is arranged in front of the contamination cabinet body, the upper part of the movable cabinet door is provided with a goggles window which is used for enabling the operator to observe welding operation conditions at any time and is provided with a control system arranged on the upper part of the side plate of the cabinet body at the right of the contamination cabinet body, the control system comprises an internal circuit control device and a special operating device of an external display instrument, and voltage and current required by welding, stirring fan control and measurement control circuits of various internal sensors are completed, and a power switch, an adjusting knob, an output positive electrode, an output negative electrode and other control operating systems and current indicator, a temperature display meter, a humidity display meter, an oxygen concentration meter, a light transmittance meter and other monitoring instruments are uniformly distributed on an external instrument panel to ensure that operators can regulate and control electric welding experiment parameters in the toxin-contaminated cabinet body in real time and test environment parameters to complete a required static electric welding waste gas inhalation toxicity-contamination experiment.
The beneficial effects of the invention are as follows: the static electric welding waste gas inhalation toxicity experiment is conveniently and rapidly carried out, and the scientific research experiment requirements for electric welding waste gas inhalation toxicity research and prevention are met.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
In the figure:
1. Exhaust port 2, exhaust gate valve 3, exhaust seal port 4, control system 5, instrument panel 6, light transmittance meter
7. Temperature display table 8, current indicator 9, output positive electrode 10, oxygen concentration meter 11, humidity display table 12, power switch
13. The adjusting knob 14, the output cathode 15, the cabinet side plate 16, the animal cage 17, the shading baffle 18, the experimental animal 19, the rubber glove 20, the sealing rubber 21, the cabinet bottom plate 22, the bracket flange 23, the bracket leg 24, the locking pin 25, the cabinet bracket 26, the adjusting handle 27, the adjusting flange 28, the caster brake 29, the movable caster 30, the bracket foot rod 31, the ground electrode 32, the bolt clamp spring
33. Intake gate valve 34, intake port 35, intake pipe 36, bracket beam 37, intake seal port 38, and landing foot pad
39. Bench support leg 40, fixed handle 41, bench sleeve leg 42, movable door shaft 43, karman rotary handle 44, experiment bench 45, experiment table top 46, goggles window 47, movable cabinet door 48, sealing rubber strip 49, module base 50, welding module 51, welding steel plate
52. Cabinet door frame 53, isolation shield 54, welding rod 55, fixing bolt 56, electrode clamp 57, welding rod clamping mouth
58. Gas-blocking hole 59, electric welding handle 60, electric welding pliers 61, spiral wire 62, sealing flange 63, live wire electrode
64. Electrode wire 65, stirring fan 66, cabinet top plate 67, door joint adhesive tape 68, contamination cabinet 69 and exhaust pipe.
Detailed Description
The invention will be described with reference to fig. 1 and the examples.
As shown in fig. 1, the invention provides a rapid static electric welding waste gas inhalation toxicity test device, which comprises a contamination cabinet 68 arranged on a cabinet bracket 25 with movable casters 29, and capable of accommodating test animals 18 for static welding waste gas inhalation toxicity test under the monitoring control of a control system 4, wherein the contamination cabinet 68 is a square with smooth inner and outer surfaces and made of corrosion-resistant transparent materials and capable of accommodating the test animals 18 and performing gas test, the contamination cabinet 68 is provided with a plurality of planes, each plane comprises a cabinet bottom plate 21, a cabinet side plate 15 and a cabinet top plate 66, each plane is a flat plate with different functional accessories, the lower part of each flat plate is a sealed multi-surface cavity formed by the sealed connection of other flat plates, a cabinet bottom plate 21 is connected and arranged on a cabinet bracket 25 through bracket flanges 22 at four corners, a plurality of cabinet side plates 15 are arranged on each upper side of the cabinet bottom plate 21 in a sealing way and are supported by and connected with a cabinet top plate 66 at the uppermost side in a sealing way, a cabinet door frame 52 is arranged in front of a contamination cabinet 68 and is in sealing connection with the cabinet bottom plate 21, the cabinet side plates 15 and the cabinet top plate 66, a movable cabinet door 47 capable of being opened and closed and locked is arranged in front of the contamination cabinet 68, a goggles window 46 with a function of blocking electric welding illumination is arranged on the upper part of the movable cabinet door 47, an operator can observe welding operation conditions at any time through a window, the goggles window 46 is sealed by a sealing adhesive tape 48, the movable cabinet door 47 is movably linked to open and close by a movable door shaft 42 arranged on the left side of a cabinet door frame 52, the movable cabinet door 47 is locked by a latch rotary handle 43 arranged on the right side edge of the movable cabinet door 47 being clamped into a latch clamp spring 32 fixedly arranged on the right side edge of the cabinet door frame 52 when the movable cabinet door 47 is closed, the movable cabinet door 47 is tightly pressed and contacted with a door gap adhesive tape 67 arranged on the upper side of the cabinet door frame 52 to form a sealed experiment cabin, a center part of a cabinet top plate 66 arranged on the upper side inside a contamination cabinet 68 near the front side is connected with a fire wire electrode 63 by a sealing flange 62, the live wire electrode 63 is connected with the electrode holder 60 through the spiral wire 61 in the poison-dying cabinet 68, the electric welding handle 59 of the electrode holder 60 is close to the rubber glove 19 arranged on the side plate 15 of the cabinet, the front end of the electrode holder 60 is provided with a welding strip clamping mouth 57 used for clamping the welding rod 54 to perform electric welding operation on the welding module 50 arranged on the experiment table frame 44, the middle part in the cabinet top plate 66 is provided with a stirring fan 65, the cabinet top plate 66 is provided with a round hole near the middle part at the rear part, the outside is provided with an exhaust pipe 69 which is connected with the exhaust port 1 through the exhaust gate valve 2 in a sealing way, the middle bottom in the poison-dying cabinet 68 is provided with a shading baffle 17 to divide the poison-dying cabinet 68 into a front space and a rear space which are communicated at the upper part, the animal cage 16 with the experimental animal 18 is arranged in the rear space, the experimental bench 44 capable of freely translating and adjusting the height is arranged in the front space on the upper surface of the bottom plate 21 of the cabinet body, the light shielding baffle 17 is a rectangle with smooth inner and outer surfaces and is not limited to a rectangle flat plate, the front surface of the light shielding baffle 17 is coated with light absorbing paint to prevent light reflection and transmission, the height of the light shielding baffle 17 is higher than the height of the animal cage 16 with the experimental animal 18 arranged behind the experimental bench 44 and the welding module 50 on the upper side of the experimental bench, the space on the upper part of the light shielding baffle 17 can facilitate freely taking and placing the animal cage 16 without being blocked, the light shielding baffle 17 is transversely and vertically arranged in the middle of the cabinet bottom plate 21, the left side and the right side are respectively and firmly connected with the cabinet side plates 15 on the left side and the right side, the experimental animal 18 positioned behind the contamination cabinet 68 and the experimental bench 44 positioned in front of the contamination cabinet 68 are separated, a plurality of staggered and overlapped opening phosgene blocking holes 58 are densely distributed on the light shielding baffle 17, so that strong light and heat generated by electric welding can not pass while the gas circulation is kept smooth; the upper part of the experiment bench 44 is provided with a welding module 50 with an electrode clamp 56, which is connected with a grounding electrode 31 at the lower side of a cabinet side plate 15 through an electrode wire 64, the lower part of the cabinet side plate 15 at the right side of the cabinet is provided with a small hole near the front side, the grounding electrode 31 is installed in an insulating way through a sealing flange 62, the grounding electrode 31 is connected with the electrode clamp 56 of the welding module 50 arranged on the experiment bench 44 through the electrode wire 64 from an output cathode 14 of the control system 4, an electric welding clamp 60 which is hung on a fire wire electrode 63 through a spiral wire 61 is arranged on a cabinet top plate 66 right above the welding module 50, the lower part of the cabinet side plate 15 near the front side at the right side of the cabinet is also provided with a larger round hole, a rubber glove 19 is installed through a sealing rubber ring 20, the electric welding handle 59 of the electric welding pliers 60 is close to the rubber glove 19 arranged on the side plate 15 of the cabinet body, the hand of an operator holds the electric welding handle 59 under the condition of isolating the gas outside the cabin of the contamination cabinet body 68, and the electric welding pliers 60 with the welding rods 54 are freely operated to carry out electric welding on the welding module 50 arranged on the experiment bench 44, and the generated electric welding waste gas carries out static inhalation toxicity experiment on the experimental animal 18 at the rear part of the contamination cabinet body 68; the welding module 50 is a small tool mould which is made of rigid high-temperature resistant heat-insulating non-conductive materials and used for protecting and fixing the welding materials, the lowest part of the welding module 50 is a flat and firm module base 49 with an isolation shield 53 and an electrode clamp 56, the isolation shield 53 is a cylindrical shield which is suspended by a bracket and fixedly arranged on the upper part of the module base 49 by a distance which can be just inserted into a welding steel plate 51 when in welding, the electrode clamp 56 is a conductive clip with a spring and a handle which is formed by intersecting two S-shaped conductive metal clamp sheets, the rear side of the handle of the electrode clamp 56 is connected with a grounding electrode 31 on a side plate 15 of a cabinet body through an electrode wire 64, the electrode clamp 56 fixes the lower metal clamp sheet on the edge of the module base 49 through a fixing bolt 55, the upper metal clamp sheet can freely and movably clamp the welding steel plate 51 arranged on the upper side of the module base 49 up and down and enable the welding steel plate 51 to be communicated with the grounding electrode 31 to have negative potential, an opening is formed in the welding steel plate 51 and is fixed on the module base 49 through the fixing bolt 55, the fixing bolt 55 is unscrewed conveniently and rapidly when the welding steel plate 51 needs to be replaced after the welding experiment is finished, the new welding steel plate 51 is detached and replaced, and the fixing bolt 55 is screwed down again, so that a new welding experiment is completed; the experiment table 44 is a small-sized working table made of rigid high-temperature-resistant heat-insulating non-conductive materials for placing articles, the uppermost side of the experiment table 44 is a flat plate-shaped experiment table 45 which is horizontally arranged, four corners of the experiment table 45 are respectively vertically and downwardly fixed with a table sleeve leg 41, the lower end of the table sleeve leg 41 is sleeved with a fixed handle 40, the lower end of each fixed handle 40 is sleeved with a table support 39, when the fixed handles 40 are loosened, the length between the table sleeve legs 41 and the table support 39 can be changed, simultaneously, the height of the experiment table 44 is stably changed by adjusting each fixed handle 40, the whole experiment bench 44 is fixed in height, the lower end of each bench leg 39 is connected with a bench foot pad 38 with shock absorption, anti-skid and damping effects, so that the whole experiment bench 44 is stably arranged at the front end of the cabinet bottom plate 21 inside the contamination cabinet 68, and the experiment bench 44 and the welding module 50 arranged on the experiment bench 44 can be freely adjusted up and down and moved by adjusting four fixed handles 40 so as to adapt to the required rapid static electric welding waste gas inhalation toxicity experiment by an operator holding the electric welding tongs 60 through rubber gloves 19; the cabinet bottom plate 21 is provided with a round hole near the middle part of the cabinet door frame 52, an air inlet pipe 35 is hermetically arranged in the cabinet bottom plate through an air inlet sealing interface 37, the air inlet pipe 35 is connected with an air inlet interface 34 through an air inlet gate valve 33, then is connected with a gas blower, and controls the contamination cabinet 68 to be sealed or to exchange gas with the outside by simultaneously opening and closing the air inlet gate valve 33 and the air outlet gate valve 2, and a control system 4 is arranged at the upper part of the cabinet side plate 15 at the right side of the contamination cabinet 68; the control system 4 is a special operating device with an internal circuit control device and an external display instrument, the internal circuit arranged on the side plate 15 of the cabinet body comprises a voltage and current generating circuit, a stirring fan 65 control circuit and various internal sensors and measurement control circuits with all functions, the instrument panel 5 is externally arranged on the side plate 15 of the cabinet body, and a power switch 12, an adjusting knob 13, a control operating system such as an output positive electrode 9 and an output negative electrode 14, a current indicator 8, a temperature indicator 7, a humidity indicator 11, an oxygen concentration meter 10, a light transmittance meter 6 and other monitoring instruments are uniformly arranged on the instrument panel 5 to ensure that an operator regulates and controls electric welding experiment parameters and environment parameter tests in the cabinet body 68 in real time to finish a static electric welding waste gas inhalation toxicity and contamination experiment; the contamination cabinet 68 is arranged on a cabinet bracket 25 with movable casters 29, the cabinet bracket 25 is a composite mechanical device made of firm bearing rigid materials, four bracket flanges 22 made of metal materials are arranged at the uppermost edge of the cabinet bracket 25 and are respectively and fixedly arranged at the corners close to the lower surface of a cabinet bottom plate 21 of the contamination cabinet 68, a bracket sleeve leg 23 is vertically and downwards fixed in the middle of each bracket flange 22, a locking flange 24 is sleeved at the lower end of the bracket sleeve leg 23, the locking flange 24 is transversely connected and fixedly provided with a bracket cross beam 36, the locking flange 24 is downwards connected with an adjusting flange 27 with the height adjustable through an adjusting handle 26, the lower end of each adjusting flange 27 is sleeved with a support foot rod 30, when the adjusting handle 26 is loosened, the length between the support foot rods 30 sleeved with the support leg 23 can be changed, the height of the cabinet support 25 is also changed, when the adjusting handle 26 is screwed down, the height of the cabinet support 25 is fixed, the lower end of each support foot rod 30 is connected with a movable castor 29 with a castor brake 28, and because the whole contamination cabinet 68 is fixedly arranged on the cabinet support 25 with the movable castor 29, the height and the position of the whole rapid static electric welding waste gas inhalation toxicity experiment device can be freely adjusted up and down and moved horizontally by adjusting the four adjusting flanges 27 and the castor brake 28.
Examples:
When in use, firstly, experimental animals 18 for experiments are prepared and put into the animal cage 16, then the welding rod 54 and the welding steel plate 51 are prepared, then the rapid static electric welding waste gas inhalation toxicity experiment device is pushed to the place where the device needs to be used, the height and flatness of the rapid static electric welding waste gas inhalation toxicity experiment device are adjusted according to the height of operators, namely, the height of the cabinet bracket 25 for fixing the contamination cabinet 68 is adjusted, the adjusting handle 26 on the adjusting flange 27 is loosened, the length between the bracket sleeve legs 23 and the bracket foot rods 30 is changed according to the required bracket height, the height of the cabinet bracket 25 is also changed, when the required height is reached, the adjusting handle 26 is screwed down, at this time, the height of the cabinet bracket 25 is fixed, 4 bracket foot rods 30 sleeved on the bracket sleeve legs 23 are respectively adjusted to the same height, and then the caster brakes 28 of the movable casters 29 are braked, so that the whole experimental device keeps the same height and flatness and can not move; the clamping door rotating handle 43 is rotated out of the latch clamp spring 32 at the right edge of the cabinet door frame 52, the movable cabinet door 47 of the contamination cabinet 68 is opened, and the animal cage 16 filled with the experimental animal 18 is placed behind the contamination cabinet 68 through the space above the light shielding partition 17; placing the experiment table 44 at a proper position in the contamination cabinet 68, then adjusting the height of the experiment table 44, firstly loosening the fixed handles 40 to change the length between the table legs 41 and the table legs 39, simultaneously adjusting the other three fixed handles 40 to smoothly change the height of the experiment table 44, finally screwing the fixed handles 40, fixing the height of the whole experiment table 44, connecting the lower end of each table leg 39 with a table foot pad 38 with shock absorption, anti-skid and damping effects, thus the whole experiment table 44 is stably placed at the front end of the cabinet bottom plate 21 in the contamination cabinet 68, and freely adjusting and planarly moving the experiment table 44 and the welding module 50 placed on the experiment table 44 by adjusting the four fixed handles 40 to adapt to the rapid electrostatic electric welding waste gas inhalation toxicity experiment required by operators; then the prepared welding steel plate 51 is inserted into the distance that the isolation shield 53 is suspended by the support, the welding steel plate 51 is fixed on the module base 49 by the fixing bolt 55, the metal clamp piece on the upper side of the electrode clamp 56 can freely and vertically movably clamp the welding steel plate 51 arranged on the upper side of the module base 49, and the welding steel plate 51 is communicated with the grounding electrode 31 and has negative potential; the welding rod 54 is put into the welding strip clamping port 57 at the front end of the welding tongs 60 to clamp, the movable cabinet door 47 of the contamination cabinet 68 is closed, the movable cabinet door 47 is clamped into the latch clamp spring 32 fixedly arranged at the right side edge of the cabinet door frame 52 through the latch rotary handle 43 when the movable cabinet door 47 is closed to lock the movable cabinet door 47, the movable cabinet door 47 is tightly pressed and contacted with the door slot adhesive tape 67 arranged on the upper edge of the cabinet door frame 52 to form a sealed experiment cabin, meanwhile, the air inlet gate valve 33 and the air outlet gate valve 2 are closed to ensure that the contamination cabinet 68 is completely sealed, the device is electrified, the control system 4 starts to work, at the moment, the electric welding tongs 60 provided with the welding rod 54 are freely operated by the electric welding handle 59 under the condition of isolating the outside air in the contamination cabinet 68, the generated electric welding waste gas carries out static inhalation toxicity experiment on the experimental animal 18 at the rear part of the contamination cabinet 68; during the experiment, an operator can observe the welding operation condition at any time through the goggles window 46 with the function of blocking the electric welding illumination on the upper part of the movable cabinet door 47 in front of the contamination cabinet 68, fresh air needs to be input during the experiment, the air inlet gate valve 33 and the air outlet gate valve 2 can be simultaneously opened to exchange air with the outside, and the air inlet gate valve 33 and the air outlet gate valve 2 are closed after the exchange is completed, so that the inside of the contamination cabinet 68 is a closed cabin; the internal circuit control equipment and the external display instrument of the control system 4 in the experiment ensure that an operator can regulate and control the electric welding experiment parameters and the environmental parameter tests in the toxin exposure cabinet 68 at any time so as to complete the required static electric welding waste gas inhalation toxicity exposure experiment; after the experiment is finished, the air inlet gate valve 33 and the air outlet gate valve 2 are simultaneously opened to exchange air with the outside, then the device is powered off, the movable cabinet door 47 of the contamination cabinet 68 is opened, and the animal cage 16 containing the experimental animal 18 placed behind the contamination cabinet 68 is taken out through the space above the light shielding baffle 17 for further test and detection analysis; if the welding steel plate (51) needs to be replaced, the fixing bolt (55) is conveniently and rapidly unscrewed, the new welding steel plate (51) is detached and replaced, the fixing bolt (55) is screwed down again for the next welding experiment, the welding rod 54 which cannot be used again is taken out for treatment, finally the caster brake 28 of the movable caster 29 is opened, the quick static electric welding waste gas suction toxicity experiment device is pushed to a storage place, and the caster brake 28 is braked for the next experiment.
Claims (7)
1. A swift quiet electric welding waste gas inhalation toxicity experimental apparatus, characterized by: comprises a contamination cabinet (68) arranged on a cabinet bracket (25) with movable casters (29), the contamination cabinet (68) is a sealed cabin consisting of a cabinet bottom plate (21), a cabinet side plate (15) and a cabinet top plate (66), the sealed cabin is provided with an air inlet pipe (35) and an air outlet pipe (69), a static welding waste gas inhalation toxicity experiment can be carried out on an experimental animal (18) under the monitoring control of a control system (4), a shading baffle (17) arranged at the middle bottom of the contamination cabinet (68) divides the contamination cabinet (68) into a front space and a rear space which are communicated with each other, an animal cage (16) for the experimental animal (18) is arranged in the rear space to carry out inhalation toxicity exposure on the experimental animal (18), the front space is provided with an experimental bench (44) which can be freely translated and adjusted in height on the upper surface of the cabinet bottom plate (21), a grounding electrode (31) arranged below the cabinet side plate (15) is arranged on the experimental bench (44) and connected with a wire (64) through an electrode wire (50), a wire (60) is hung on a wire welding clamp (61) on the upper part of the electric wire (66), an electric welding handle (59) of an electric welding clamp (60) is close to a rubber glove (19) which is arranged on a side plate (15) of a cabinet body and is provided with a sealing rubber ring (20), an operator holds the electric welding handle (59) under the condition of isolating the gas outside a chamber of a contamination cabinet body (68) and freely operates the electric welding clamp (60) with an electric welding rod (54) to carry out electric welding operation on a welding module (50) arranged on an experiment bench (44) to produce electric welding waste gas to carry out toxicity sucking experiments on experimental animals (18), a movable cabinet door (47) which can be opened and closed and locked is arranged in front of the contamination cabinet body (68), a goggles window (46) with a function of blocking electric welding operation condition is arranged at any time at the upper part of the movable cabinet door (47), a control system (4) is arranged at the upper part of the side plate (15) of the right side of the contamination cabinet body (68), the control system (4) comprises an internal circuit control device and a special operating device of an external display instrument, voltage and current required by welding is completed, a stirring fan (65) and various internal control devices are controlled, a measuring circuit (14), a temperature sensor (14) is arranged on an output meter (13), a power supply meter (13) is arranged on the output meter, a control system (13), a power meter is arranged on the output meter (13), and an output meter is adjusted The humidity display meter (11), the oxygen concentration meter (10) and the light transmittance meter (6) are used for ensuring that operators can regulate and control electric welding experiment parameters and environment parameters in the toxin exposure cabinet body (68) in real time to test and finish a required static electric welding waste gas inhalation toxicity exposure experiment.
2. The rapid static electric welding waste gas inhalation toxicity test device according to claim 1, wherein: the contamination cabinet body (68) is a square sealing cabin body which is made of corrosion-resistant transparent materials and has smooth inner and outer surfaces, can accommodate experimental animals (18) and carry out gas experiments, the contamination cabinet body (68) is provided with a plurality of planes, each plane is a flat plate with different functional accessories, each flat plate and other flat plates are connected in a sealing way to form a sealed multi-surface cavity, the bottom part of the contamination cabinet body is a cabinet body bottom plate (21) which is connected and installed on the upper edge of a cabinet body bracket (25) through bracket flanges (22) at four corners, a plurality of cabinet side plates (15) are arranged on each upper side of the cabinet bottom plate (21) in a sealing way and are supported by and connected with the uppermost cabinet top plate (66), a cabinet door frame (52) is arranged in front of the contamination cabinet (68) and is connected with the cabinet bottom plate (21), the cabinet side plates (15) and the cabinet top plate (66) in a sealing way, a movable cabinet door (47) with a goggles window (46) for blocking electric welding illumination is arranged in front of the contamination cabinet (68), the goggles window (46) is sealed by a sealing adhesive tape (48), the movable cabinet door (47) is opened and closed through a movable door shaft (42) arranged on the left side of the cabinet door frame (52) in a movable link way, when the movable cabinet door (47) is closed, the movable cabinet door (47) is clamped into a latch clamp spring (32) fixedly arranged at the right side edge of a cabinet door frame (52) through a latch rotary handle (43) arranged at the right side edge of the movable cabinet door, the movable cabinet door (47) is tightly pressed and sealed by a door gap adhesive tape (67) arranged on the upper side of the cabinet door frame (52) to form a closed experiment cabin, a fire wire electrode (63) is connected to the middle part of a cabinet top plate (66) arranged on the upper side inside a contamination cabinet body (68) close to the front through a sealing flange (62), the fire wire electrode (63) is connected with an electric welding clamp (60) through a spiral lead (61) inside the contamination cabinet body (68), the electric welding handle (59) of the electric welding pliers (60) is close to the rubber glove (19) arranged on the side plate (15) of the cabinet body, the front end of the electric welding pliers (60) is provided with a welding strip clamping opening (57) for clamping an electric welding rod (54) to perform electric welding operation on a welding module (50) arranged on the experiment table frame (44), the middle part inside the top plate (66) of the cabinet body is provided with a stirring fan (65), the middle part of the top plate (66) of the cabinet body is provided with a round hole near the middle part of the rear part, the outside is provided with an exhaust pipe (69) in a sealing way through an exhaust sealing interface (3), the exhaust valve (2) is connected with the exhaust interface (1), the middle bottom inside the contamination cabinet body (68) is provided with a shading baffle plate (17) for dividing the contamination cabinet body (68) into a front space and a rear space which are communicated with the upper part, an animal cage (16) with experimental animals (18) is arranged in the rear space, an experiment table frame (44) with adjustable height is arranged on the upper surface of a cabinet bottom plate (21) in the front space, a welding module (50) with an electrode clamp (56) connected with a grounding electrode (31) is arranged on the upper part of the experiment table frame (44), a round hole is arranged on the cabinet bottom plate (21) near the middle part of a cabinet door frame (52), an air inlet pipe (35) is hermetically arranged in the cabinet bottom plate (21) through an air inlet sealing interface (37), the air inlet pipe (35) is connected with an air inlet interface (34) through an air inlet gate valve (33), then the air inlet pipe is connected with an air blower, and the air inlet gate valve (33) and the air outlet gate valve (2) are simultaneously opened and closed or in air exchange with the outside so as to control a contamination cabinet (68), the lower part of the cabinet body side plate (15) on the right side of the cabinet body is provided with a small hole near the front edge and is provided with a grounding electrode (31) in an insulating way through a sealing flange (62), the grounding electrode (31) is connected to an electrode clamp (56) of a welding module (50) arranged on an experiment table frame (44) from an output negative electrode (14) of a control system (4) through an electrode lead (64), the lower part of the cabinet body side plate (15) on the right side of the cabinet body near the front edge is also provided with a round hole near the middle and lower part of the cabinet body side plate (15) on the right side of the cabinet body is provided with a rubber glove (19) through a sealing rubber ring (20), an operator can hold an electric welding handle (59) in the condition of isolating the outside air in a cabin of a contamination cabinet body (68) to freely operate an electric welding clamp (60) with an electric welding electrode (54) to carry out static inhalation toxicity test on an experiment animal (18) arranged at the rear part of the contamination cabinet body (68) by electric welding waste gas generated by electric welding, the upper part of a cabinet body side plate (15) at the right side of the contamination cabinet body (68) is provided with a control system (4).
3. The rapid static electric welding waste gas inhalation toxicity test device according to claim 1, wherein: the light shielding partition plate (17) is made of a rigid heat-resistant heat-insulating opaque material and is a rectangular plate with smooth inner and outer surfaces, the front surface of the light shielding partition plate (17) is coated with a light-absorbing coating to prevent light reflection and transmission, the height of the light shielding partition plate (17) is higher than that of an experimental bench (44) and a welding module (50) arranged on the experimental bench, the experimental animal (18) can be completely shielded by the experimental bench (44), the animal cage (16) is placed behind the contamination cabinet (68), the space on the upper part of the light shielding partition plate (17) can be conveniently and freely taken and placed in the animal cage (16) without being blocked, the light shielding partition plate (17) is transversely and vertically arranged in the middle of a cabinet bottom plate (21), the left side and the right side are respectively and firmly connected with cabinet side plates (15) on the left side and the right side, the experimental animal (18) positioned behind the contamination cabinet (68) and the experimental bench (44) positioned in front of the contamination cabinet (68) are separated, a plurality of light blocking holes (58) with staggered and overlapped openings are distributed on the upper side of the light shielding partition plate (17) to keep effective heat and not to be blocked.
4. The rapid static electric welding waste gas inhalation toxicity test device according to claim 1, wherein: the experiment table frame (44) is a small-sized work table frame made of rigid heat-resistant heat-insulating non-conductive materials for placing articles, the uppermost side of the experiment table frame (44) is a flat plate-shaped experiment table surface (45) which is horizontally arranged, four corners of the experiment table surface (45) are respectively vertically and downwards fixed with a table frame sleeve leg (41), the lower end of the table frame sleeve leg (41) is sleeved with a fixed handle (40), the lower end of each fixed handle (40) is sleeved with a table frame support leg (39), when the fixed handles (40) are loosened, the length of the table frame sleeve leg (41) sleeved with the table frame support legs (39) can be changed, meanwhile, the height of each fixed handle (40) is adjusted, and when the fixed handles (40) are screwed down, the height of the whole experiment table frame (44) is fixed; the lower end of each rack supporting leg (39) is connected with a rack foot pad (38) with a shock absorption anti-slip damping effect, so that the whole experiment rack (44) is stably arranged at the front end of a cabinet body bottom plate (21) inside a contamination cabinet body (68), and the experiment rack (44) and a welding module (50) arranged on the experiment rack (44) can be freely adjusted up and down and moved by adjusting four fixed handles (40) so as to adapt to an operator to carry out a required fast static electric welding waste gas inhalation toxicity experiment by holding an electric welding clamp (60) through rubber gloves (19).
5. The rapid static electric welding waste gas inhalation toxicity test device according to claim 1, wherein: the welding module (50) is a small tool die which is made of rigid heat-resistant heat-insulating non-conductive materials and used for protecting and fixing welding materials, the lowest part of the welding module (50) is a flat and firm module base (49) with an isolation shield (53) and an electrode clamp (56), the isolation shield (53) is a cylindrical shield which is suspended by a bracket and fixedly arranged on the upper part of the module base (49) to prevent spark from splashing during welding, the suspension distance can be just inserted into a welding steel plate (51), the electrode clamp (56) is a conductive clamp which is formed by intersecting two S-shaped conductive metal clamp sheets and is provided with a spring and a handle, the rear side of the handle of the electrode clamp (56) is connected with a grounding electrode (31) on a side plate (15) of a cabinet body through an electrode lead (64), the lower metal clamp sheet of the electrode clamp (56) is fixed on the edge of the module base (49) through a fixing bolt (55), the upper metal clamp sheet can freely clamp the welding steel plate (51) arranged on the upper side of the module base (49) and enable the upper side of the electrode clamp sheet (51) to be communicated with the grounding electrode (51) to be fixed on the grounding electrode (49) through a negative electrode lead (55), the welding steel plate (51) is convenient and quick to unscrew the fixing bolt (55) when the welding steel plate needs to be replaced after the welding experiment is finished, the new welding steel plate (51) is detached and replaced, and the fixing bolt (55) is screwed down again to finish the new welding experiment.
6. The rapid static electric welding waste gas inhalation toxicity test device according to claim 1, wherein: the cabinet body bracket (25) is a composite mechanical device made of firm bearing rigid materials, four bracket flanges (22) made of metal materials are arranged at the uppermost edge of the cabinet body bracket (25), the bracket flanges are respectively and fixedly arranged at the corners, close to the lower surface, of a cabinet body bottom plate (21) of a contamination cabinet body (68), a bracket sleeve leg (23) is vertically and downwards fixed in the middle of each bracket flange (22), a locking flange (24) is sleeved at the lower end of the bracket sleeve leg (23), the locking flange (24) is transversely connected and fixedly provided with a bracket cross beam (36), the locking flange (24) is downwards connected with an adjusting flange (27) with the adjustable height through an adjusting handle (26), a bracket foot rod (30) is sleeved below each adjusting flange (27), the length between the bracket sleeve legs (23) and the bracket foot rods (30) can be changed when the adjusting handle (26) is loosened, the height of the cabinet body bracket (25) is also changed, when the adjusting handle (26) is screwed down, the height of the cabinet body bracket (25) is fixed, the lower bracket rods (30) are connected with the trundles (29) on the movable caster wheels (28) because the movable caster wheels (28) are arranged on the movable caster wheels (25), therefore, the height and the position of the whole rapid static electric welding waste gas inhalation toxicity experimental device can be freely adjusted up and down and can be moved horizontally by adjusting the four adjusting flanges (27) and the caster brake (28).
7. The rapid static electric welding waste gas inhalation toxicity test device according to claim 1, wherein: the control system (4) is a special operating device which is arranged on the upper portion of a cabinet body side plate (15) on the right of the contamination cabinet body (68) and is provided with an internal circuit control device and an external display instrument, the internal circuit arranged on the upper portion of the cabinet body side plate (15) comprises a voltage and current generation circuit, a stirring fan (65) control circuit and various internal sensors and measurement control circuits with all functions, which are needed by welding, an instrument panel (5) is arranged on the upper portion of the cabinet body side plate (15), and a power switch (12), an adjusting knob (13), an output positive electrode (9) and an output negative electrode (14) are uniformly arranged on the instrument panel (5) to control the operating system, a current indicator (8), a temperature indicator (7), a humidity indicator (11), an oxygen concentration meter (10) and an optical transmittance meter (6) to monitor the instruments so as to ensure that operators can regulate electric welding experimental parameters in the contamination cabinet body (68) in real time and complete a required static electric welding waste gas inhalation toxicity contamination experiment.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2803309Y (en) * | 2005-07-19 | 2006-08-09 | 范维林 | Dynamic, static and washing three-in-one full automatic toxicity inhalation testing device |
| CN201026205Y (en) * | 2007-04-29 | 2008-02-27 | 南方医科大学 | Modified type static inhalation exposure cabinet |
| CN102337210A (en) * | 2011-10-10 | 2012-02-01 | 天津开发区合普工贸有限公司 | Positive and negative pressure compatible cell exposure aseptic shielding cabinet equipment |
| CN214511410U (en) * | 2020-11-18 | 2021-10-29 | 天津开发区合普工贸有限公司 | Swift quiet formula electric welding waste gas inhales toxicity experimental apparatus |
-
2020
- 2020-11-18 CN CN202011295701.4A patent/CN112245063B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2803309Y (en) * | 2005-07-19 | 2006-08-09 | 范维林 | Dynamic, static and washing three-in-one full automatic toxicity inhalation testing device |
| CN201026205Y (en) * | 2007-04-29 | 2008-02-27 | 南方医科大学 | Modified type static inhalation exposure cabinet |
| CN102337210A (en) * | 2011-10-10 | 2012-02-01 | 天津开发区合普工贸有限公司 | Positive and negative pressure compatible cell exposure aseptic shielding cabinet equipment |
| CN214511410U (en) * | 2020-11-18 | 2021-10-29 | 天津开发区合普工贸有限公司 | Swift quiet formula electric welding waste gas inhales toxicity experimental apparatus |
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