CN115308200B - Sealed gas detector adopting lead acetate paper method - Google Patents
Sealed gas detector adopting lead acetate paper method Download PDFInfo
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- CN115308200B CN115308200B CN202211243596.9A CN202211243596A CN115308200B CN 115308200 B CN115308200 B CN 115308200B CN 202211243596 A CN202211243596 A CN 202211243596A CN 115308200 B CN115308200 B CN 115308200B
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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Abstract
The invention relates to the technical field of gas detection, in particular to a sealed gas detector adopting a lead acetate paper method. The residual toxic gas affects the next detection process, and for some toxic gases with unstable air pressure, the volume of the introduced toxic gas is uncertain in the same time, so that the actually measured volume is deviated. The utility model provides an adopt plumbous paper method closed gas detection appearance, is including detecting the casing, detects casing sliding connection and has the sliding plate, and the intake pipe has been inlayed to the sliding plate, and the intake pipe is provided with locking Assembly, detects the casing rigid coupling and has the air-blower, and the intercommunication has the connecting pipe between sliding plate and the air-blower. According to the invention, the toxic gas pipeline and the air pipeline are switched through the sliding plate, so that the influence of residual toxic gas on subsequent detection data is avoided, the air inlet pipe and the toxic gas pipeline are locked through the locking component, the increase of the pressure of the toxic gas is avoided, and the toxic gas pipeline is disconnected from the air inlet pipe.
Description
Technical Field
The invention relates to the technical field of gas detection, in particular to a sealed gas detector adopting a lead acetate paper method.
Background
Hydrogen sulfide is a toxic gas, can produce hydrogen sulfide at petroleum or chemical production's in-process, through set up the detector on production line or pipeline, detects the content of hydrogen sulfide, and current hydrogen sulfide detector is when using, through letting in lead acetate with chemical gas for the paper tape produces the color reaction, analyzes the content of hydrogen sulfide through the depth of the regional brown that discolours on the paper tape.
In the actual detection process, toxic gas is remained in the detector, so that the residual toxic gas affects the next detection process, and for some toxic gases with unstable air pressure, the volume of the toxic gas introduced in the same time is uncertain, so that the actually measured volume is deviated, and the subsequent detection process is affected; toxic gas is not wetted in advance during detection, so that the lead acetate solution is short in service time and the cost is increased; in addition, the lead acetate paper is not sealed during detection, so that toxic gas leaks out, and the health of workers is affected.
Disclosure of Invention
In order to solve the problems that in the actual detection process, the residual toxic gas is caused to influence the next detection process due to the discharge of the residual toxic gas, the volume of the toxic gas introduced in the same time is uncertain for some toxic gases with unstable air pressure, the actual measured volume is caused to deviate, the subsequent detection process is influenced, and the toxic gas is not wetted in advance, so that the service time of a lead acetate solution is short, a sealed toxic gas detector adopting a lead acetate paper method and having the function of discharging the residual toxic gas is developed.
The technical scheme is as follows: a sealed gas detector adopting a lead acetate paper method comprises a detection shell, wherein a groove is formed in one side of the detection shell, an electric push rod is fixedly connected to the top of the detection shell, a symmetrically distributed limiting frame is fixedly connected to the top of the detection shell, a sliding plate fixedly connected with the telescopic end of the electric push rod is slidably connected to the limiting frame, an air blower is fixedly connected to the detection shell, a connecting pipe is communicated between the sliding plate and the air blower, the transverse portion of the connecting pipe is a corrugated pipe, an air inlet pipe is embedded in the sliding plate, the air inlet pipe is made of an elastic material, a quantitative shell is arranged in the detection shell and is communicated with a fixed shell through a pipe, a lead acetate storage box is arranged in the detection shell and is filled with lead acetate, the lead acetate storage box is communicated with the fixed shell through a pipe, a support shell is slidably connected to the detection shell and is communicated with the lead acetate storage box through a hose, a servo motor is fixedly connected to the detection shell, symmetrically distributed spline rods are rotatably connected to the groove of the detection shell, an output shaft of the servo motor is fixedly connected to one of the spline rods, lead acetate paper is arranged on the spline rods, the lead acetate storage box, a spherical shunt shell is fixedly connected to one end of the hose between the lead acetate storage box and the support shell, and is fixedly connected to one end of the support shell, and is close to the spherical shunt shell, through a through hole uniformly, and is in a circumferential contact with the lead acetate paper; the rigid coupling has the color comparison board that is used for contrasting the acetate lead paper colour in the recess of detection casing, detects the casing and is provided with control terminal, and electric putter, air-blower and servo motor are connected with control terminal electricity, and electric putter drives connecting pipe and intake pipe through the sliding plate and switches.
Preferably, one end of the conduit communicated with the lead acetate storage tank is lower than the liquid level of lead acetate in the conduit, the lead acetate storage tank is communicated with a lead acetate compensator, and the lead acetate compensator is used for supplementing the lead acetate in the lead acetate storage tank, so that the situation that part of toxic gas cannot contact with the lead acetate due to the fact that the liquid level of the lead acetate is reduced is avoided.
Preferably, still including locking Assembly, locking Assembly sets up in the sliding plate, locking Assembly is including solid fixed ring, gu fixed ring rigid coupling is in the sliding plate, gu fixed ring cover locates the intake pipe, gu fixed ring equidistant rigid coupling in circumference has the elastic component, the elastic component cover is equipped with the chucking ring, the chucking ring rigid coupling has the first L shape pole of symmetric distribution, the one end that chucking ring was kept away from to first L shape pole is rotated and is connected with the gyro wheel, the gyro wheel and the spacing contact of first L shape pole, the middle part of spacing lower surface sets up to the arcwall face.
Preferably, the quantitative device further comprises a quantitative mechanism for quantifying the toxic gas, the quantitative mechanism is arranged in a quantitative shell, the quantitative mechanism comprises a filter screen for filtering the toxic gas, the filter screen is fixedly connected in the quantitative shell, a support positioned below the filter screen is fixedly connected in the quantitative shell, the inner diameter of the upper portion of the quantitative shell, which is close to the top end, is gradually reduced, the reducing portion of the quantitative shell is arranged as an inclined plane, a first piston is slidably connected to the upper portion in the quantitative shell, a first spring is fixedly connected between the first piston and the support, a second piston in contact with the lower surface of the first piston is slidably connected to the quantitative shell, a second piston is embedded into a conduit fixedly connected with the quantitative shell, the conduit fixedly connected with the quantitative shell is in sealing fit with the first piston and the second piston, a first sliding rod fixedly connected with the second piston is slidably connected to the quantitative shell, a spring is fixedly connected between the second piston and the quantitative shell, a touch switch electrically connected with a control terminal is fixedly connected in the quantitative shell, a pressure relief assembly is arranged on the quantitative shell, and the pressure relief assembly is used for assisting the first piston in resetting.
Preferably, the pressure relief assembly comprises a sleeve, the sleeve is communicated with the quantitative shell, a second sliding rod is slidably connected in the sleeve, the sleeve is slidably connected with a piston fixedly connected with the second sliding rod, a second spring is fixedly connected between the piston and the sleeve, the elastic coefficient of the second spring is smaller than that of the first spring and used for resetting the first piston, a limiting ring is fixedly connected to one end, away from the sleeve, of the second sliding rod, a supporting rod is fixedly connected with the quantitative shell, a second L-shaped rod is slidably connected with the supporting rod of the quantitative shell, a third spring is fixedly connected between the second L-shaped rod and the supporting rod of the quantitative shell, the second L-shaped rod is in limit fit with the limiting ring, and the first sliding rod is matched with the second L-shaped rod and used for releasing the limit of the limiting ring.
Preferably, still including the speed governing subassembly that is used for adjusting the toxic gas velocity of flow, the speed governing subassembly sets up in fixed casing, the speed governing subassembly is including the breather pipe, breather pipe sliding connection is in fixed casing, the breather pipe rigid coupling has the interception piece that is located fixed casing, the breather pipe has first rack through the branch rigid coupling, first slide bar has the second rack through the branch rigid coupling, it is connected with the swivel sleeve to rotate through the dead lever in the detection casing, swivel sleeve one end rigid coupling has the first gear with first rack toothing, swivel sleeve other end rigid coupling has the second gear with second rack toothing, the tooth quantity of second gear is greater than the tooth quantity of first gear, equal rigid coupling has the rectangle pole that is used for spacingly on breather pipe and the first slide bar, prevent breather pipe and first slide bar rotation, and avoid first rack and second rack to rotate.
Preferably, the inner diameter of the upper part of the fixed shell is gradually increased from top to bottom, the interception block is in a circular truncated cone shape, the interception block is matched with the inner diameter of the upper part of the fixed shell, and the circulation of gas between the fixed shell and the interception block is adjusted by the up-and-down movement of the interception block.
Preferably, be provided with the steam production machine of being connected with control terminal electricity in the detection casing, the interception piece is provided with the cavity with the breather pipe intercommunication, and interception piece circumference is provided with the through-hole, and the steam production machine passes through hose and breather pipe intercommunication, and the steam that the steam production machine produced forms the convection current with the toxic gas that gets into in the fixed casing, moistens the hydrogen sulfide among the toxic gas, the follow-up chemical reaction of being convenient for.
Preferably, still including the seal assembly who prevents toxic gas and leak, seal assembly sets up in the sliding plate, seal assembly is including third L shape pole, third L shape pole rigid coupling is in the sliding plate, it is provided with the rectangle through groove that is used for third L shape pole to remove to detect the casing, it is connected with the connecting rod to detect through the dead lever rotation in the casing, the one end of connecting rod passes through fourth spring and detects the casing rigid coupling, the other end and the support casing of connecting rod are articulated, the support casing rigid coupling has the sealing washer, the rigid coupling has and supports casing complex transparent housing in the recess of detection casing, transparent housing is convenient for operating personnel to observe the situation of change of acetate plumbous paper, the acetate plumbous paper is located between transparent housing and the sealing washer, prevent toxic gas and leak, it has the waste gas collecting box to detect the casing rigid coupling, the waste gas collecting box passes through elasticity broken pipe and transparent housing intercommunication.
The invention has the following beneficial effects: according to the invention, the toxic gas pipeline and the air pipeline are switched through the sliding plate, so that the influence of residual toxic gas on subsequent detection data is avoided, the air inlet pipe and the toxic gas pipeline are locked through the locking assembly, the increase of the pressure of the toxic gas is avoided, the toxic gas pipeline is disconnected from the air inlet pipe, the problem that the volume of the toxic gas cannot be quantified due to the fact that the gas pressure fluctuates when the toxic gas is introduced and the volume of the introduced toxic gas is uncertain in the same time is avoided by carrying out quantitative operation on the toxic gas, the supporting shell presses the lead acetate paper on the right side surface of the transparent shell through the sealing ring, the sealing performance between the supporting shell and the lead acetate paper is improved through the sealing ring, and the environmental pollution caused by the leakage of harmful gas in the acetic acid or toxic gas pipeline is avoided.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a partial cross-sectional view of a three-dimensional structure according to the present invention.
Fig. 3 is a partial cross-sectional view of another three-dimensional structure of the present invention.
Fig. 4 is a partial perspective view of the present invention.
Fig. 5 is a perspective view of the locking assembly of the present invention.
Fig. 6 is a partial cross-sectional view of a three-dimensional structure of a dosing mechanism according to the invention.
Fig. 7 is an enlarged perspective view of the present invention at a.
Fig. 8 is a partial cross-sectional view of another embodiment of the dosing mechanism of the present invention.
Fig. 9 is an enlarged perspective view of the present invention at B.
Fig. 10 is an enlarged perspective view of the present invention at C.
Fig. 11 is a perspective partial sectional view of a seal assembly of the present invention.
Fig. 12 is an enlarged schematic perspective view of the present invention at D.
The device comprises a detection shell, a 2 electric push rod, a 3 limiting frame, a 4 sliding plate, a 401 fixing ring, a 402 elastic part, a 403 clamping ring, a 404 first L-shaped rod, a 5 blower, a 6 connecting pipe, a 7 air inlet pipe, an 8 quantitative shell, a 801 filtering net, an 802 support, a 803 first piston, a 804 first spring, a 805 second piston, a 806 first sliding rod, a 807 sleeve, a 808 second sliding rod, a 809 second spring, a 810 limiting ring, a 811 second L-shaped rod, a 812 third spring, a 9 fixing shell, a 901 ventilating pipe, a 902 blocking block, a 903 first rack, a 904 second rack, a rotating sleeve, a 906 first gear, a 907 second gear, a 908-vapor production machine, a 10-lead acetate storage box, a 11 supporting shell, a 1101 third L-shaped rod, a 1102-1104 connecting rod, a 1103-rotating sleeve, a 906 first gear, a 907 second gear, a waste vapor production machine, a 10-lead acetate storage box, a 11 supporting shell, a 1101 third L-shaped rod, a 1102-fourth spring, a lead connecting rod, a 1103-sealing ring, a 1105-transparent shell, a 1106-transparent shell, a spline paper guide plate, a spline paper control box, a 13-13 control motor and a spline paper control box.
Detailed Description
The winding method of the lead acetate paper described below is tape winding, and the following direction is convenient for others to understand the present invention, and is not an actual fixed installation direction, and the following is only a preferred embodiment of the present invention, and therefore does not limit the protection scope of the present invention.
Example 1
A sealed gas detector adopting a lead acetate paper method is disclosed, as shown in figures 1-4, and comprises a detection shell 1, a groove is arranged on the left side surface of the detection shell 1, an electric push rod 2 is fixedly connected to the top of the detection shell 1, a limiting frame 3 which is symmetrically distributed in the front and back is fixedly connected to the detection shell 1, a sliding plate 4 fixedly connected to the telescopic end of the electric push rod 2 is slidably connected to the limiting frame 3, the sliding plate 4 is tightly attached to the upper surface of the detection shell 1, an air blower 5 is fixedly connected to the detection shell 1, a connecting pipe 6 is communicated between the sliding plate 4 and the air blower 5, the transverse part of the connecting pipe 6 is provided with a corrugated pipe, an air inlet pipe 7 is embedded in the sliding plate 4, the air inlet pipe 7 is made of an elastic material, a quantitative shell 8 is arranged in the detection shell 1, the outer side surface of the quantitative shell 8 is fixedly connected to the detection shell 1 through a supporting plate, the quantitative shell 8 is communicated with a fixed shell 9 through a conduit, a lead acetate storage tank 10 is arranged in the detection shell 1, lead acetate is filled in the lead acetate storage box 10, the lead acetate storage box 10 is communicated with the fixed shell 9 through a guide pipe, one end of the guide pipe between the fixed shell 9 and the lead acetate storage box 10, which is close to the lead acetate storage box 10, is lower than the liquid level of lead acetate therein, the situation that the generation amount of compounds is reduced due to the fact that part of toxic gas cannot be contacted with the lead acetate caused by the reduction of the liquid level of the lead acetate is avoided, the lead acetate storage box 10 is communicated with a lead acetate compensator which is used for supplementing the lead acetate in the lead acetate storage box 10, the detection shell 1 is slidably connected with a support shell 11, the support shell 11 is communicated with the lead acetate storage box 10 through a hose, the left end of the hose communicated with the support shell 11 is fixedly connected with a spherical shunting shell, through holes are uniformly arranged in the circumferential direction of the spherical shunting shell, and compounds sprayed out to lead acetate paper 14 in a dispersing way, avoid compound maldistribution, cause the difference between the colour everywhere on the leaded paper 14 of acetate, influence operating personnel and observe, be full of lead acetate in the lead acetate bin 10, it has servo motor 12 to detect the rigid coupling in the casing 1, detect the recess internal rotation of casing 1 and be connected with symmetrical spline rod 13, servo motor 12 and front side spline rod 13 rigid coupling, be provided with the leaded paper 14 of acetate on the spline rod 13, the rigid coupling has the color comparison board 15 that is used for contrasting the 14 colours of leaded paper of acetate in the recess of detection casing 1, operating personnel is through observing the colour comparison of leaded paper 14 and color comparison board 15, obtain the how much of hydrogen sulfide content in the toxic gas and record data, its principle is the same with PH color development principle, it is provided with control terminal 16 to detect casing 1, electric putter 2, air-blower 5 and servo motor 12 are connected with control terminal 16 electrically, electric putter 2 drives connecting pipe 6 and intake pipe 7 through sliding plate 4 and switches, thereby toxic gas and air switch, discharge toxic gas through the air, avoid remaining gas to influence follow-up testing process.
When the content of hydrogen sulfide of toxic gas is required to be detected, an operator firstly places a non-wound roll of lead acetate paper 14 on a spline rod 13 fixedly connected with an output shaft of a servo motor 12, places the roll wound with the lead acetate paper 14 on the spline rod 13 at the rear side, inserts a toxic gas pipeline into an air inlet pipe 7 by the operator, the air inlet pipe 7 has elasticity, the inner diameter of the air inlet pipe 7 is slightly smaller than the outer diameter of the toxic gas pipeline, so that the air inlet pipe 7 is sealed with the toxic gas pipeline, the operator starts an electric push rod 2 through a control terminal 16, the electric push rod 2 drives the air inlet pipe 7 to move rightwards through a sliding plate 4, when the air inlet pipe 7 is aligned with a quantitative shell 8, the operator stops the electric push rod 2 through the control terminal 16, then the operator introduces the toxic gas into the quantitative shell 8, the toxic gas enters a lead acetate storage box 10 through the quantitative shell 8 and a fixed shell 9 in sequence, the toxic gas entering the lead acetate reacts with the lead acetate to generate a compound, the lead acetate storage box is consumed, and the lead acetate content in the lead acetate storage box 10 is reduced.
Because the one end that the pipe between fixed casing 9 and the lead acetate storage box 10 is close to lead acetate storage box 10 is less than the liquid level of its interior lead acetate, and lead acetate storage box 10 intercommunication has the lead acetate compensator, the lead acetate compensator is used for replenishing the lead acetate in the lead acetate storage box 10, avoid the lead acetate liquid level to reduce and cause that part toxic gas can't contact with lead acetate, cause the condition that compound formation volume reduces, the compound that produces gets into support housing 11 through the hose and spouts to lead acetate paper 14 through the dispersion of spherical reposition of redundant personnel casing, avoid compound distribution inequality, cause the difference between the colour everywhere on lead acetate paper 14, influence the problem that operating personnel observed, along with compound formation, the colour of lead acetate paper 14 becomes brown by white gradually, the colour of lead acetate paper 14 is darker, the content of hydrogen sulfide in the toxic gas is higher, operating personnel is through observing the colour contrast of lead acetate paper 14 and colour comparison of colour comparison board 15, obtain how much the logarithm of hydrogen sulfide content in the toxic gas and data record the test paper, it is the same with PH, after the development of lead acetate paper 14 is accomplished, operating personnel stop to the quantitative casing 8 internal gas, the residual gas that the toxic gas still has the toxic gas of the operation, this moment, carry out the residual gas to carry out the following detection and can carry out the toxic gas detection process, the following process of the detection, the process of the detection, it can carry out to carry out the following:
an operator starts the electric push rod 2 through the control terminal 16, the electric push rod 2 drives the connecting pipe 6 to move leftwards, after the connecting pipe 6 is aligned with the quantitative shell 8, the operator stops the electric push rod 2 and starts the air blower 5 through the control terminal 16, the air blower 5 blows air into the quantitative shell 8, the air moves along the toxic gas path (the air does not react with lead acetate in the lead acetate storage box 10), residual toxic gas in the pipeline is discharged after a period of time, influence of the residual toxic gas on the next detection process is avoided, accuracy of detection of hydrogen sulfide content in the toxic gas is improved, better detection effect is achieved, the operator stops the air blower 5 and starts the electric push rod 2 through the control terminal 16, after the electric push rod 2 drives the sliding plate 4 to reset, the operator stops the electric push rod 2 through the control terminal 16, the device is used, toxic gas pipeline and air pipeline are switched through the sliding plate 4, influence of the residual toxic gas on subsequent detection data is avoided, before the next detection of the lead acetate paper 14 is carried out, the operator starts the electric push rod 12, the servo motor 12 drives the spline rod to rotate, the spline rod 13, and then the servo motor 14 rotates the spline rod 14, and drives the servo motor 12 to rotate the spline rod 14, and then, after the servo motor 14 rotates the spline rod 14 to rotate.
Example 2
On the basis of embodiment 1, as shown in fig. 2 and 5, the gas inlet pipe sealing device further comprises a locking assembly, the locking assembly is arranged on the sliding plate 4, the locking assembly comprises a fixing ring 401, the fixing ring 401 is fixedly connected to the sliding plate 4, the fixing ring 401 is sleeved on the outer wall of the gas inlet pipe 7, the fixing ring 401 is welded with elastic members 402 at equal intervals in the circumferential direction, the diameter of the lower portion of the inner wall of the elastic member 402 is larger than the diameter of the upper portion of the inner wall of the elastic member 402, the elastic members 402 are spring pieces, a clamping ring 403 is sleeved on the outer side of the elastic members 402, the clamping ring 403 is fixedly connected with first L-shaped rods 404 which are symmetrically distributed, one ends of the first L-shaped rods 404, which are far away from the clamping ring 403, are rotatably connected with rollers, friction force generated when the first L-shaped rods 404 move is reduced, the rollers of the first L-shaped rods 404 are in contact with the limiting frame 3, the middle portion of the lower surface of the limiting frame 3 is set to be an arc-shaped surface, the clamping ring 403 is driven to move downwards by the lower surface of the limiting frame 3 in the process of the two first L-shaped rods 404, the clamping ring 403 gradually reduces the inner diameter of the upper portion surrounded by the clamping member 402, and increases the extrusion force generated when the gas inlet pipe between the gas inlet pipe 7 and the gas inlet pipe moves rightwards.
As shown in fig. 6-8, the device further comprises a quantitative mechanism for quantifying the toxic gas, the quantitative mechanism is disposed in the quantitative housing 8, the quantitative mechanism comprises a filter screen 801 for filtering the toxic gas, a vent hole for balancing air pressure is disposed at the lower end of the quantitative housing 8, the filter screen 801 is fixedly connected in the quantitative housing 8, a support 802 disposed below the filter screen 801 is fixedly connected in the quantitative housing 8, the inner diameter of the upper portion of the quantitative housing 8, which is close to the top end, is gradually reduced, the diameter-variable portion of the quantitative housing 8 is disposed as an inclined surface, a first piston 803 is slidably connected at the upper portion of the quantitative housing 8, a first spring 804 is fixedly connected between the first piston 803 and the support 802, the quantitative housing 8 is slidably connected with a second piston 805 contacting with the lower surface of the first piston 803, and a conduit fixedly connected with the quantitative housing 8 is embedded in the second piston 805, the guide pipe fixedly connected with the quantitative shell 8 is in sealing fit with the first piston 803 and the second piston 805, the quantitative shell 8 is connected with a first sliding rod 806 fixedly connected with the second piston 805 in a sliding mode, a spring is fixedly connected between the second piston 805 and the quantitative shell 8, a touch switch electrically connected with the control terminal 16 is fixedly connected in the quantitative shell 8, when the second piston 805 is in contact with the touch switch in the quantitative shell 8, the volume and the pressure of toxic gas in the quantitative shell 8 are equal, quantitative operation is conducted on the toxic gas, fluctuation of the gas pressure when the toxic gas is introduced is avoided, the volume of the toxic gas introduced in the same time is uncertain, and the problem that the volume of the toxic gas cannot be quantified is caused, a pressure relief assembly is arranged on the quantitative shell 8 and used for resetting the first piston 803.
As shown in fig. 6 and 7, the pressure relief assembly includes a sleeve 807, the sleeve 807 is communicated with the quantitative shell 8, a vent hole for balancing air pressure is formed in the right side of the sleeve 807, a second sliding rod 808 is slidably connected with the sleeve 807, a piston fixedly connected with the second sliding rod 808 is slidably connected with the sleeve 807, a second spring 809 is fixedly connected between the piston and the sleeve 807, the second spring 809 is sleeved on the second sliding rod 808, the elastic coefficient of the second spring 809 is smaller than the elastic coefficient of the first spring 804 and is used for resetting the first piston 803, a limit ring 810 is fixedly connected with the right end of the second sliding rod 808, two support rods are fixedly connected with the right side surface of the quantitative shell 8, a second L-shaped rod 811 is slidably connected with a support rod of the quantitative shell 8, a third spring 812 is fixedly connected between the second L-shaped rod 811 and the support rod of the quantitative shell 8, the second L-shaped rod 811 is in limit fit with the limit ring 810, and the first sliding rod 806 is matched with the second L-shaped rod 811 and is used for releasing the limit of the limit ring 810.
As shown in fig. 6, 9 and 10, the device further comprises a speed regulating assembly for regulating the flow rate of the toxic gas, the speed regulating assembly is arranged in the fixed housing 9, the speed regulating assembly comprises a vent pipe 901, the vent pipe 901 is slidably connected to the fixed housing 9, the upper end of the vent pipe 901 is welded with a blocking block 902 positioned in the fixed housing 9, the inner diameter above the fixed housing 9 is gradually increased from top to bottom, the blocking block 902 is in a circular table shape, the blocking block 902 is matched with the inner diameter above the fixed housing 9, the blocking block 902 moves up and down through the blocking block 902 to regulate the air inlet area in the fixed housing 9, and the air inlet amount is regulated, so that the air inlet amount of the toxic gas in unit time is kept at a certain value, and the rate of the toxic gas entering the lead acetate storage tank 10 is ensured, the reaction speed of hydrogen sulfide in toxic gas and lead acetate in the lead acetate storage box 10 is controlled, the lower end of a vent pipe 901 is fixedly connected with a first rack 903 through a support rod, a first sliding rod 806 is fixedly connected with a second rack 904 through a support rod, a rotating sleeve 905 is rotatably connected in the detection shell 1 through a fixed rod, the front end of the rotating sleeve 905 is fixedly connected with a first gear 906 meshed with the first rack 903, the rear end of the rotating sleeve 905 is fixedly connected with a second gear 907 meshed with the second rack 904, the number of teeth of the second gear 907 is larger than that of the first gear 906, rectangular rods for limiting are fixedly connected on the vent pipe 901 and the first sliding rod 806, the vent pipe 901 and the first sliding rod 806 are prevented from rotating, and the first rack 903 and the second rack 904 are prevented from rotating.
As shown in fig. 6 and 9, a water vapor generator 908 electrically connected with the control terminal 16 is arranged in the detection housing 1, the water vapor generator 908 is electrically connected with the control terminal 16, the interception block 902 is provided with a cavity communicated with the vent pipe 901, through holes are circumferentially arranged on the outer side surface of the interception block 902, the water vapor generator 908 is communicated with the vent pipe 901 through a hose, water vapor generated by the water vapor generator 908 and toxic gas entering the fixed housing 9 form convection, hydrogen sulfide in the toxic gas is humidified, so that lead acetate can fully react with the hydrogen sulfide, and thus the lead acetate can be diluted and the service life of the lead acetate is prolonged.
As shown in fig. 11 and 12, the portable gas detector further comprises a sealing assembly for preventing toxic gas from leaking, the sealing assembly is disposed on the sliding plate 4, the sealing assembly includes a third L-shaped rod 1101, the third L-shaped rod 1101 is welded to the sliding plate 4, the detection housing 1 is provided with a rectangular through slot for the third L-shaped rod 1101 to move, a connecting rod 1102 is rotatably connected to the detection housing 1 through a fixing rod, the upper end of the connecting rod 1102 is fixedly connected to the detection housing 1 through a fourth spring 1103, the lower end of the connecting rod 1102 is hinged to the support housing 11, a sealing ring 1104 is fixedly connected to the support housing 11, a transparent housing 1105 matching with the support housing 11 is fixedly connected to a groove of the detection housing 1, the transparent housing 1105 is convenient for an operator to observe changes of the lead acetate paper 14, the lead acetate paper 14 is located between the transparent housing 1105 and the sealing ring 1104, the support housing 11 presses the lead acetate paper 14 against the right side of the transparent housing 1105 through the sealing ring 1104, the sealing ring increases the sealing performance between the support housing 11 and the lead acetate paper 14, thereby preventing compounds or toxic gas in the toxic gas pipeline from leaking out and causing environmental pollution, the detection housing 1 is provided with an exhaust gas collecting box 1106, and the exhaust gas collecting box is communicated with the transparent housing 1104 through the elastic tube 1105.
When the content of hydrogen sulfide needs to be detected for toxic gas, an operator places a winding drum which is not wound with the lead acetate paper 14 on a spline rod 13 fixedly connected with an output shaft of a servo motor 12, places the winding drum which is wound with the lead acetate paper 14 on another spline rod 13, the lead acetate paper 14 is placed and completed, the operator inserts a toxic gas pipeline into an air inlet pipe 7, the air inlet pipe 7 has elasticity, the inner diameter of the air inlet pipe 7 is slightly smaller than the outer diameter of the toxic gas pipeline, so that the air inlet pipe 7 and the toxic gas pipeline are sealed, the operator starts an electric push rod 2 through a control terminal 16, the electric push rod 2 drives the air inlet pipe 7 to move rightwards through a sliding plate 4, in the process that the air inlet pipe 7 moves rightwards, the air inlet pipe 7 and the toxic gas pipeline are locked by a locking assembly, the increase of the pressure of the toxic gas is avoided, the toxic gas pipeline is disconnected from the air inlet pipe 7, and the method is characterized by comprising the following specific operations: because the fixing ring 401 is fixedly connected to the sliding plate 4, the fixing ring 401 and the gas inlet pipe 7 move rightwards synchronously, the fixing ring 401 drives the elastic part 402 to move rightwards, the elastic part 402 drives the clamping ring 403 to move rightwards, the clamping ring 403 drives the two first L-shaped rods 404 to move rightwards, and the roller is rotatably arranged at one end, far away from the clamping ring 403, of the first L-shaped rods 404, so that the friction force generated when the first L-shaped rods 404 move is reduced, because the middle part of the lower surface of the limiting frame 3 is set to be an arc-shaped surface, the two first L-shaped rods 404 move downwards in the process of moving rightwards by the limiting frame 3 under the limiting frame, the two first L-shaped rods 404 drive the clamping ring 403 to move downwards, the clamping ring 403 gradually clamps the lower part of the elastic part 402, because the elastic part 402 is an elastic sheet, the inner diameter surrounded by the upper part of the elastic part 402 is gradually reduced, the upper part of the elastic part increases the extrusion force between the gas inlet pipe 7 and the toxic gas pipe, the tightness between the gas pipe 7 and the toxic gas pipe support 802 is increased, the increase of the pressure of the toxic gas is avoided, and the toxic gas pipe 7 is disconnected.
When first L shape pole 404 is located the minimum with the one end of spacing 3 lower surface contact, locking is accomplished, intake pipe 7 aligns with quantitative casing 8 this moment, afterwards, operating personnel stops electric putter 2 through control terminal 16, afterwards, operating personnel lets in toxic gas in to quantitative casing 8, toxic gas gets into quantitative casing 8, quantitative mechanism carries out the ration operation to toxic gas, avoid letting in the too much or too little deviation that arouses its interior hydrogen sulfide content of toxic gas, concrete operation is as follows: the toxic gas entering the quantitative shell 8 firstly filters impurities through the filter screen 801, the pressure above the first piston 803 gradually increases with the increase of the content of the introduced toxic gas, the first piston 803 starts to move downwards, the first spring 804 is stretched, the first piston 803 drives the second piston 805 to move downwards, the spring fixedly connected with the second piston 805 is compressed, the first sliding rod 806 moves downwards, the first piston 803 seals a conduit adjacent to the first piston 803, then the first piston 803 continues to move downwards, when the upper surface of the first piston 803 is lower than the connection part of the two inner diameters of the quantitative shell 8, the toxic gas flows downwards from the connection part of the two inner diameters of the quantitative shell 8, the toxic gas drives the second piston 805 to move downwards, the content of the toxic gas between the first piston 803 and the second piston 805 gradually increases, when the lower end of the first sliding rod 806 is in contact with the second L-shaped rod 811 and drives the first piston to move downwards, the third spring 812 is compressed, when the second L-shaped rod 811 contacts with a limit ring 810, the contact pressure switch 805 in the quantitative shell 8, a contact pressure switch 805 stops the transmission of the toxic gas signal to the terminal control personnel, and the personnel stops introducing the toxic gas to the terminal 16.
Because the upper part of the first piston 803 is in a high pressure state, and the elastic coefficient of the second spring 809 is less than that of the first spring 804, the piston fixedly connected with the second slide bar 808 moves rightwards rapidly, the pressure above the first piston 803 is reduced instantly, the first spring 804 is reset to drive the first piston 803 to move upwards and remove the sealing of the conduit fixedly connected with the quantitative shell 8, the lower surface of the first piston 803 is flush with the middle part of the conduit, at the moment, the conduit is communicated with the quantitative shell 8, the spring fixedly connected with the second piston 805 is reset, the second piston 805 moves upwards to press the toxic gas in the quantitative shell 8 into the fixed shell 9 through the conduit, the second piston 805 drives the first slide bar 806 to move upwards, the first sliding rod 806 limits the second L-shaped rod 811, and at this time, the limiting ring 810 is not located right above the second L-shaped rod 811 (the top of the second L-shaped rod 811 contacts with the second sliding rod 808), the third spring 812 is in a compressed state, and when the second piston 805 contacts with the touch switch in the quantitative housing 8, the volume and pressure of the toxic gas in the quantitative housing 8 are equal, so that the toxic gas is quantitatively operated, and the problem that the volume of the toxic gas cannot be quantitatively determined due to fluctuation of the pressure when the toxic gas is introduced and uncertainty of the volume of the toxic gas introduced in the same time is avoided, and after the toxic gas between the first piston 803 and the second piston 805 is exhausted, the first piston 803 and the second piston 805 re-seal the adjacent conduits.
The speed regulating assembly in the fixed housing 9 is used for regulating the intake rate of toxic gas, when the first sliding bar 806 moves downwards, the first sliding bar 806 drives the second rack 904 to move downwards through the supporting bar, the second rack 904 drives the second gear 907 to rotate clockwise, the second gear 907 drives the first gear 906 to rotate clockwise through the rotating sleeve 905, the first gear 906 drives the first rack 903 to move upwards, the first rack 903 drives the vent pipe 901 to move upwards through the supporting bar, the vent pipe 901 drives the blocking block 902 to move upwards, a gap between the side surface of the blocking block 902 and the fixed housing 9 is gradually reduced, when the first sliding bar 806 is contacted with the second L-shaped bar 811, the blocking block 902 is positioned at the upper part in the fixed housing 9, when the second piston 805 is contacted with the touch pressure switch, an operator starts the steam production machine 908, and the steam production machine 908 introduces steam into the vent pipe 901 through a hose, the vapor is discharged into the fixed housing 9 through the through hole on the side of the intercepting block 902, at this time, the toxic gas between the second piston 805 and the first piston 803 enters the fixed housing 9 through the guide pipe, the vapor generated by the vapor generator 908 and the toxic gas entering the fixed housing 9 form convection, and the hydrogen sulfide in the toxic gas is humidified, so that the lead acetate can fully react with the hydrogen sulfide, thereby diluting the lead acetate, increasing the service time of the lead acetate, the second piston 805 drives the first sliding rod 806 to move upwards, due to the nature of the spring, the speed of the second piston 805 moving upwards is changed from fast to slow, therefore, the speed of the toxic gas entering the fixed housing 9 is changed from fast to slow, in the process that the toxic gas enters the fixed housing 9, the first sliding rod 806 moves upwards to drive the vent pipe 901 to drive the intercepting block 902 to move downwards through transmission, and the gap between the side of the intercepting block 902 and the fixed housing 9 is gradually increased, make when the admission rate is fast, through reducing the cross-sectional area that admits air, reduce the air input, when the admission rate is slow simultaneously, through the cross-sectional area that increases the admission, increase the air input, make the air input in the toxic gas unit interval keep a definite value, the rate of toxic gas in the lead acetate bin 10 has been guaranteed to get into simultaneously, the reaction rate of hydrogen sulfide and lead acetate in the lead acetate bin 10 in the toxic gas has been controlled, admit air at the uniform velocity and more be favorable to chemical reaction, through admitting air at the uniform velocity better acetic acid production effect has been realized.
The toxic gas entering the lead acetate reacts with the lead acetate to produce a compound, the content of the lead acetate in the lead acetate storage tank 10 is reduced, the situation that the generation amount of the compound is reduced due to the fact that one end of a guide pipe communicated with the lead acetate storage tank 10 is lower than the liquid level of the lead acetate therein is avoided, the situation that part of the toxic gas cannot contact with the lead acetate due to the fact that the liquid level of the lead acetate is reduced is avoided, the lead acetate storage tank 10 is communicated with a lead acetate compensator which is used for supplementing the lead acetate in the lead acetate storage tank 10, the generated compound enters the support shell 11 through a hose and is sprayed to the lead acetate paper 14, due to the elastic action of a fourth spring 1103, the lower end of a connecting rod 1102 extrudes the support shell 11, the support shell 11 presses the lead acetate paper 14 to the right side face of a transparent shell 1105 through a sealing ring 1104, the sealing performance between the support shell 11 and the lead acetate paper 14 is improved, the situation that the compound or harmful gas in a toxic gas pipeline leaks outside to cause environmental pollution is avoided, the problem that the toxic gas gradually leaks out of the toxic gas entering a color contrast principle that a waste gas collecting box 14 is higher and the waste gas enters a white waste gas collecting box 14, the principle of a color of a sulphur paper, the waste gas collecting box, the waste gas is observed more and the waste gas passing through a waste gas collecting box 14, the principle of a waste gas collecting box, the principle of a sulphur paper, the waste gas collecting box is improved, the waste gas is observed more and the waste gas, the waste gas is observed more deeply, 14 coloration of lead acetate paper is accomplished the back, and operating personnel stops letting in toxic gas in to ration casing 8, and at this moment, can have some toxic gas in the pipeline, afterwards, clear away remaining toxic gas, and concrete operation is as follows:
an operator starts the electric push rod 2 through the control terminal 16, the electric push rod 2 drives the connecting pipe 6 to move leftwards, after the connecting pipe 6 is aligned with the quantitative shell 8, the operator stops the electric push rod 2 through the control terminal 16 and starts the air blower 5, the air blower 5 blows air into the quantitative shell 8, the air moves along the toxic gas path (the air can not react with lead acetate in the lead acetate storage tank 10), residual toxic gas in the pipeline is discharged after a period of time, the influence of the residual toxic gas on the next detection process is avoided, the accuracy of detecting the content of hydrogen sulfide in the toxic gas is improved, a better detection effect is realized, the operator stops the air blower 5 through the control terminal 16 and starts the electric push rod 2, after the electric push rod 2 drives the sliding plate 4 to reset, the operator stops the electric push rod 2 through the control terminal 16, the device is used, toxic gas pipelines and air pipelines are switched through the sliding plate 4, the influence of residual toxic gas on subsequent detection data is avoided, before the toxic gas is detected next time, the switching of the lead acetate paper 14 is carried out, an operator starts the electric push rod 2 through the control terminal 16, the electric push rod 2 drives the third L-shaped rod 1101 to move leftwards through the sliding plate 4, when the third L-shaped rod 1101 is contacted with the upper end of the connecting rod 1102, the sliding plate 4 does not seal the upper part of the quantitative shell 8, the quantitative shell 8 is communicated with the external air pressure, the second spring 809 is reset, the second sliding rod 808 drives the spacing ring 810 to move leftwards, when the spacing ring 810 is positioned right above the first L-shaped rod, the third spring 812 is reset, the second L-shaped rod 811 re-limits the spacing ring 810, when the upper end of the connecting rod 1102 of the third L-shaped rod 1101 moves leftwards, the fourth spring 1103 is compressed, the connecting rod 1102 drives the supporting shell 11 to move rightwards, the extrusion force of the sealing ring 1104 on the lead acetate paper 14 is reduced, and therefore the subsequent movement of the lead acetate paper 14 is facilitated, subsequently, an operator stops the electric push rod 2 through the control terminal 16 and starts the servo motor 12, the servo motor 12 drives the spline rod 13 to rotate, a winding drum on the spline rod 13 on the right side in fig. 4 rotates to wind the lead acetate paper 14 used last time, and moves the new lead acetate paper 14 into the left side of the supporting shell 11, subsequently, the operator stops the servo motor 12 through the control terminal 16, and starts the electric push rod 2 to drive the third L-shaped rod 1101 to reset, so that the supporting shell 11 and the lead acetate paper 14 are sealed again, and after the lead acetate paper 14 is used, the operator replaces the lead acetate paper 14.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions and improvements to part of the technical features of the foregoing embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A sealed gas detector adopting a lead acetate paper method comprises a detection shell (1), and is characterized in that one side of the detection shell (1) is provided with a groove, the top of the detection shell (1) is fixedly connected with an electric push rod (2), the top of the detection shell (1) is fixedly connected with a symmetrically distributed limiting frame (3), the limiting frame (3) is slidably connected with a sliding plate (4) fixedly connected with a telescopic end of the electric push rod (2), the detection shell (1) is fixedly connected with an air blower (5), a connecting pipe (6) is communicated between the sliding plate (4) and the air blower (5), the transverse part of the connecting pipe (6) is arranged as a corrugated pipe, the sliding plate (4) is embedded with an air inlet pipe (7), the air inlet pipe (7) is made of an elastic material, a quantitative shell (8) is arranged in the detection shell (1), the quantitative shell (8) is communicated with a fixed shell (9) through a conduit, a lead acetate storage tank (10) is arranged in the detection shell (1), the lead acetate storage tank (10) is communicated with the fixed shell (9) through a conduit, the lead acetate storage tank (10) is filled with a servo motor (12), spline rods (13) which are symmetrically distributed are rotationally connected in a groove of the detection shell (1), an output shaft of a servo motor (12) is fixedly connected with one of the spline rods (13), lead acetate paper (14) is arranged on the spline rods (13), one end, close to the support shell (11), of a hose between the lead acetate storage box (10) and the support shell (11) is fixedly connected with a spherical shunt shell, through holes are uniformly formed in the circumferential direction of the spherical shunt shell and are used for enabling a compound to be in full contact with the lead acetate paper (14); a colorimetric plate (15) for comparing the color of the lead acetate paper (14) is fixedly connected in a groove of the detection shell (1), the detection shell (1) is provided with a control terminal (16), the electric push rod (2), the air blower (5) and the servo motor (12) are electrically connected with the control terminal (16), and the electric push rod (2) drives the connecting pipe (6) and the air inlet pipe (7) to be switched through the sliding plate (4);
the quantitative device is characterized by further comprising a quantitative mechanism for quantifying the toxic gas, the quantitative mechanism is arranged in a quantitative shell (8), the quantitative mechanism comprises a filter screen (801) for filtering the toxic gas, the filter screen (801) is fixedly connected in the quantitative shell (8), a support (802) positioned below the filter screen (801) is fixedly connected in the quantitative shell (8), the upper portion of the quantitative shell (8) is gradually reduced close to the top end inner diameter, the reducing portion of the quantitative shell (8) is arranged to be an inclined surface, a first piston (803) is slidably connected to the upper portion in the quantitative shell (8), a first spring (804) is fixedly connected between the first piston (803) and the support (802), and a second piston (805) in contact with the lower surface of the first piston (803) is slidably connected to the quantitative shell (8), a conduit fixedly connected with the quantitative shell (8) is embedded into a second piston (805), a conduit fixedly connected with the quantitative shell (8) is in sealing fit with the first piston (803) and the second piston (805), the quantitative shell (8) is in sliding connection with a first sliding rod (806) fixedly connected with the second piston (805), a spring is fixedly connected between the second piston (805) and the quantitative shell (8), a touch switch electrically connected with the control terminal (16) is fixedly connected in the quantitative shell (8), a pressure relief assembly is arranged on the quantitative shell (8), and the pressure relief assembly is used for resetting the first piston (803);
the pressure relief assembly comprises a sleeve (807), the sleeve (807) is communicated with the quantitative shell (8), a second sliding rod (808) is connected in the sleeve (807) in a sliding manner, a piston fixedly connected with the second sliding rod (808) is connected in the sleeve (807) in a sliding manner, a second spring (809) is fixedly connected between the piston and the sleeve (807), the elastic coefficient of the second spring (809) is smaller than that of the first spring (804) and used for resetting the first piston (803), one end, far away from the sleeve (807), of the second sliding rod (808) is fixedly connected with a limiting ring (810), a support rod is fixedly connected with the quantitative shell (8), a second L-shaped rod (811) is connected in a sliding manner with the support rod of the quantitative shell (8), a third spring (812) is fixedly connected between the second L-shaped rod (811) and the support rod of the quantitative shell (8), the second L-shaped rod (811) is in limiting fit with the limiting ring (810), and the first sliding rod (806) and the second L-shaped rod (811) are matched and used for relieving the limiting ring (810);
the device is characterized by further comprising a speed regulating assembly for regulating the flow rate of toxic gas, the speed regulating assembly is arranged in the fixed shell (9), the speed regulating assembly comprises a vent pipe (901), the vent pipe (901) is connected to the fixed shell (9) in a sliding mode, the vent pipe (901) is fixedly connected with a blocking block (902) located in the fixed shell (9), the vent pipe (901) is fixedly connected with a first rack (903) through a support rod, a second rack (904) is fixedly connected to the first slide rod (806) through the support rod, a rotating sleeve (905) is rotatably connected to the detection shell (1) through a fixed rod, a first gear (906) meshed with the first rack (903) is fixedly connected to one end of the rotating sleeve (905), a second gear (907) meshed with the second rack (904) is fixedly connected to the other end of the rotating sleeve (905), the number of teeth of the second gear (907) is larger than that of the first gear (906), rectangular rods for limiting are fixedly connected to the vent pipe (901) and the first slide rod (806), and the first rack (904) are prevented from rotating.
2. The sealed gas detector using the paper method for detecting lead acetate according to claim 1, wherein one end of the conduit between the fixed casing (9) and the lead acetate storage tank (10) close to the lead acetate storage tank (10) is lower than the liquid level of lead acetate therein, the lead acetate storage tank (10) is communicated with a lead acetate compensator, and the lead acetate compensator is used for supplementing lead acetate in the lead acetate storage tank (10) and preventing a part of toxic gas from contacting with lead acetate due to the reduction of the liquid level of lead acetate.
3. The sealed gas detector adopting the lead acetate paper method as set forth in claim 1, further comprising a locking assembly, wherein the locking assembly is disposed on the sliding plate (4), the locking assembly comprises a fixing ring (401), the fixing ring (401) is fixedly connected to the sliding plate (4), the fixing ring (401) is sleeved on the outer wall of the gas inlet pipe (7), the fixing ring (401) is fixedly connected to elastic members (402) at equal intervals in the circumferential direction, the elastic members (402) are sleeved with clamp rings (403), the clamp rings (403) are fixedly connected to first L-shaped rods (404) which are symmetrically distributed, one ends of the first L-shaped rods (404) far away from the clamp rings (403) are rotatably connected with rollers, the rollers of the first L-shaped rods (404) are in contact with the limiting frame (3), and the middle portion of the lower surface of the limiting frame (3) is provided with an arc-shaped surface.
4. The hermetic gas detector according to claim 1, wherein the inner diameter of the upper portion of the fixed housing (9) is gradually increased from top to bottom, the intercepting block (902) is configured in a truncated cone shape, the intercepting block (902) is matched with the inner diameter of the upper portion of the fixed housing (9), and the flow rate of the gas between the fixed housing (9) and the intercepting block (902) is adjusted.
5. The sealed gas detector adopting the lead acetate paper method as claimed in claim 4, wherein a water vapor production machine (908) electrically connected with the control terminal 16 is arranged in the detection housing (1), the intercepting block (902) is provided with a cavity communicated with the vent pipe (901), through holes are circumferentially arranged on the intercepting block (902), the water vapor production machine (908) is communicated with the vent pipe (901) through a hose, and water vapor generated by the water vapor production machine (908) and toxic gas entering the fixed housing (9) form convection to humidify hydrogen sulfide in the toxic gas, thereby facilitating subsequent chemical reaction.
6. The sealed gas detector adopting the seal paper method as claimed in claim 1, further comprising a seal assembly for preventing toxic gas from leaking, the seal assembly is disposed on the sliding plate (4), the seal assembly comprises a third L-shaped rod (1101), the third L-shaped rod (1101) is fixedly connected to the sliding plate (4), the detection housing (1) is provided with a rectangular through slot for moving the third L-shaped rod (1101), a connecting rod (1102) is rotatably connected to the detection housing (1) through a fixing rod, one end of the connecting rod (1102) is fixedly connected to the detection housing (1) through a fourth spring (1103), the other end of the connecting rod (1102) is hinged to the support housing (11), the support housing (11) is fixedly connected to a sealing ring (1104), a transparent housing (1105) matched with the support housing (11) is fixedly connected to a groove of the detection housing (1), the transparent housing (1105) is convenient for an operator to observe changes of the seal paper (14), the seal paper (14) is disposed between the transparent housing (1105) and the sealing ring (1104), thereby preventing gas from leaking, the detection housing (1) is fixedly connected to a toxic waste gas collection box (1106) through an elastic waste gas collection box (1106).
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| CN116973330B (en) * | 2023-09-15 | 2023-12-01 | 北京智慧共享技术服务有限公司 | Gas spectrum infrared analyzer |
| CN117110230B (en) * | 2023-10-23 | 2023-12-19 | 北京智慧共享技术服务有限公司 | Infrared gas analysis device and application method thereof |
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