Waste gas detection device and detection method for waste gas treatment

Abstract

The present invention discloses an exhaust gas detection device for exhaust gas treatment and a detection method thereof, which relates to the field of exhaust gas detection, including a base and an exhaust gas collection pipe, wherein the exhaust gas collection pipe is arranged above the base to collect the treated exhaust gas, an exhaust gas storage chamber is installed above the base to collect the exhaust gas, and the left end of the exhaust gas storage chamber and the exhaust gas collection pipe are connected to each other, so that the exhaust gas collection pipe can send the gas into the exhaust gas storage chamber, and a gas pumping mechanism is arranged inside the exhaust gas storage chamber to suck the gas at the exhaust gas collection pipe into the exhaust gas storage chamber. The exhaust gas detection device for exhaust gas treatment can realize quantitative collection of the detection gas by moving the piston in the exhaust gas storage chamber in cooperation with the first one-way conduction mechanism, so that the subsequent detection data is more comparable, and when the piston is subsequently pushed to exhaust, the second one-way conduction mechanism is arranged to enable the gas to smoothly enter the detection chamber for detection, and is easy to use.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas detection, and in particular to a waste gas detection device for waste gas treatment and a detection method thereof. Background Art

[0002] When preventing and controlling air pollution, it is particularly important to manage the source of exhaust gas emissions. Direct placement of exhaust gas after it is generated will cause greater pollution to the environment. Therefore, the exhaust gas needs to be treated. The exhaust gas can only be discharged after the treatment is completed. In order to ensure that the exhaust gas treatment meets the standards, the exhaust gas can be tested when it is placed. The application number is CN202221784286.3, and a waste gas detection device for waste gas treatment disclosed on December 23, 2022, uses an injection component to allow the gas to enter the inside of the exhaust pipe through the air inlet pipe, so that the gas passes through the nozzle to clear the air inlet net of the detection device. , thereby achieving the effect of preventing the air inlet of the detection device from being blocked, thereby improving the practicality of the entire device. The application number is CN202120984005.8. An organic waste gas detection and treatment device disclosed on November 23, 2021 is provided with a box body, an air induction mechanism, a detection mechanism, a filter frame, an activated carbon filter frame, an oil-absorbing cotton mesh frame, a driving mechanism, a connecting rod, a vertical rod, a bevel gear, a bevel gear, a fixing mechanism, a spoiler mechanism and blades. The exhaust gas can be introduced into the box body through the air induction mechanism, the filter frame can filter the dust in the exhaust gas, and the two oil-absorbing cotton mesh frames can absorb the gaseous oil in the exhaust gas;

[0003] The detection devices currently used need to be cleaned inside the device or the exhaust gas needs to be pre-treated after use to ensure the detection accuracy of the detection equipment. However, impurities in the exhaust gas are also one of the criteria for judging whether the exhaust gas treatment meets the standards. Directly discharging it will also affect the overall detection effect of the exhaust gas. The exhaust gas entering the exhaust gas during detection is affected by manual exhaust and detection time. The detection amount of gas is difficult to accurately control, and the impurities and pollutants in the exhaust gas are still directly discharged after detection, which will also cause pollution to the environment. Summary of the invention

[0004] The object of the present invention is to provide an exhaust gas detection device for exhaust gas treatment and a detection method thereof, so as to solve the problem proposed in the above background technology that the detection device currently used needs to clean the inside of the device after use, or pre-treat the exhaust gas to ensure the detection accuracy of the detection equipment. However, impurities in the exhaust gas are also one of the criteria for judging whether the exhaust gas treatment meets the standards. Directly discharging it will also affect the overall detection effect of the exhaust gas. The exhaust gas entering the exhaust gas during detection is affected by the exhaust gas exhaust and detection time, and the detection amount of the gas is difficult to accurately control.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an exhaust gas detection device for exhaust gas treatment, comprising a base and an exhaust gas collecting pipe, wherein the exhaust gas collecting pipe is arranged above the base to collect the treated exhaust gas, an exhaust gas storage chamber is installed above the base to collect the exhaust gas, and the left end of the exhaust gas storage chamber and the exhaust gas collecting pipe are connected to each other, so that the exhaust gas collecting pipe can deliver the gas into the exhaust gas storage chamber, a gas pumping mechanism is arranged inside the exhaust gas storage chamber to suck the gas at the exhaust gas collecting pipe into the exhaust gas storage chamber, a first one-way conducting mechanism is arranged at the end of the exhaust gas collecting pipe, and the conducting direction of the first one-way conducting mechanism is from the exhaust gas collecting pipe to the exhaust gas storage chamber, The left end of the waste gas storage chamber is connected to an air supply hose, and the end of the air supply hose is connected to an air supply pipe, and a cover body is fixed to the outside of the air supply pipe, and the bottom of the cover body is connected to a detection chamber, the lower end of the air supply pipe is located at the bottom of the detection chamber, and an air outlet is opened at the lower end of the air supply pipe to send gas into the detection chamber and mix with the detection liquid, a third one-way conducting mechanism is arranged inside the air supply pipe, and the conducting direction of the third one-way conducting mechanism is from the air supply hose to the inside of the air supply pipe, an exhaust pipe is arranged above the cover body to discharge the detected gas, and a second one-way conducting mechanism is arranged inside the exhaust pipe, and the conducting direction of the second one-way conducting mechanism is from the inside of the detection chamber to the outside.

[0006] To further optimize the technical solution, the gas pumping mechanism includes a piston and a control rod;

[0007] A piston is arranged inside the exhaust gas storage chamber and between the exhaust gas storage chambers to form a left-right sliding structure, and the gas is pumped by the movement of the piston;

[0008] The control rod, fixed on the right side of the piston, controls the movement of the piston.

[0009] To further optimize the technical solution, locking grooves are evenly opened laterally above the control rod, and a locking rod is engaged above the locking groove, and the locking rod is located on the outside of the exhaust gas storage chamber, and a mounting plate is threadedly connected to the outside of the locking rod, and the mounting plate is fixed to the surface of the exhaust gas storage chamber to provide support for the locking rod.

[0010] To further optimize the technical solution, a connector is installed at the end of the air supply hose, and a threaded connection is formed between the connector and the air supply pipe, so that the air supply hose and the air supply pipe can be disassembled, the air supply pipe and the cover body are fixedly connected, and a threaded connection is formed between the cover body and the detection chamber.

[0011] Further optimizing the technical solution, the second one-way conduction mechanism includes a baffle, a communication port, a sealing block, a first spring and a fixing plate;

[0012] a baffle, fixed to the inside of the exhaust pipe;

[0013] A communication port is provided in the middle of the baffle;

[0014] A sealing block is arranged above the communicating port to seal the communicating port;

[0015] A first spring, arranged above the sealing block, provides a downward thrust for the sealing block;

[0016] A fixing plate is fixed inside the exhaust pipe to provide support for the first spring.

[0017] To further optimize the technical solution, an anti-overflow plate is arranged below the exhaust pipe, and an up and down sliding structure is formed between the anti-overflow plate and the exhaust pipe, and the anti-overflow plate is located below the baffle, and air holes are opened on the anti-overflow plate, and the positions of the air holes and the connecting port are staggered.

[0018] To further optimize the technical solution, a movable shaft is rotatably installed inside the detection chamber, and a blade is fixed on the surface of the movable shaft, and the end of the blade is located on the outside of the air outlet, so that the air outlet can blow the blade to rotate, and an auxiliary shaft is fixed on the surface of the movable shaft.

[0019] To further optimize the technical solution, a connecting block is connected to the bottom of the detection chamber, and a correction ball is fixed below the connecting block, and the outer side of the correction ball is rotatably connected to a support seat, a counterweight block is fixed below the correction ball, and the counterweight block provides vertical pulling force for the correction ball to maintain the vertical state of the detection chamber, and a connecting ring is fixed below the detection chamber, and a detachable connection is formed between the connecting ring and the connecting block.

[0020] To further optimize the technical solution, a positioning block is provided above the connecting block, and a horizontal sliding structure is formed between the positioning block and the connecting block, and the outer end of the positioning block is designed in a circular arc shape, and the inner end of the positioning block is connected to a second spring to provide an external thrust for the positioning block, and an annular connecting groove is provided inside the connecting ring, and the positioning block and the connecting groove are engaged to position the connection between the connecting block and the connecting ring, an auxiliary ring is provided on the outside of the connecting ring, and the auxiliary ring is fixed below the detection chamber, and a mounting block is fixed above the base, and the middle part of the mounting block is designed in a notch shape, and a threaded connection is formed between the mounting block and the auxiliary ring.

[0021] A detection method of an exhaust gas detection device for exhaust gas treatment, the method comprising the following steps:

[0022] S1: Add gas detection reagent into the forward detection chamber, move the device to the exhaust gas discharge, place the exhaust gas collection pipe and the exhaust gas discharge place opposite each other, and then pull the control rod to drive the piston to move in the exhaust gas storage chamber, the air pressure in the exhaust gas storage chamber is reduced, the first one-way conduction mechanism is opened, and the external gas enters the exhaust gas storage chamber through the exhaust gas collection pipe, and the gas collection amount is controlled by the moving distance of the control rod;

[0023] S2: After the gas collection is completed, the control rod can be pushed to squeeze out the gas in the waste gas storage chamber. At this time, the first one-way conduction mechanism is closed, and the gas enters the interior of the gas delivery pipe through the third one-way conduction mechanism, and enters the detection chamber through the gas outlet to react with the detection liquid, and the impurities in the gas are also adsorbed in the liquid at the same time;

[0024] S3: The pollutant content of the gas after the reaction treatment will also decrease. The treated gas is discharged from the detection chamber through the second one-way conduction mechanism. The waste gas treatment status can be detected by comparing the color change of the liquid in the detection chamber and the residual impurities.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The exhaust gas detection device for exhaust gas treatment can realize quantitative collection of detection gas through the movement of the piston in the exhaust gas storage chamber in cooperation with the first one-way conduction mechanism, so that subsequent detection data are more comparable. When the piston is subsequently pushed to exhaust gas, the second one-way conduction mechanism is set to allow the gas to smoothly enter the detection chamber for detection, which is convenient to use.

[0027] The waste gas detection device for waste gas treatment can distinguish the acidity and alkalinity of the solution after absorbing the waste gas by adding detection reagents in the detection chamber, and the concentration of pollutants in the waste gas can be judged by observing the color depth. The waste gas after passing through the solution is washed with water, and the impurities in the waste gas can also be absorbed by the solution, so that the subsequent discharged gas can be purified, and the pollutants in the waste gas remain in the detection chamber. The liquid in the detection chamber can be poured out and re-added to continue the detection, which also greatly facilitates the cleaning of the device;

[0028] The waste gas detection device for waste gas treatment can keep the detection chamber in a vertical state by setting the correction ball and the counterweight block, so that the gas outlet can be kept at the bottom of the liquid, so that the subsequently discharged gas can fully contact and react with the liquid, and the gas can drive the blades to rotate when being discharged, stirring the liquid in the detection chamber, so that the gas and liquid are mixed more evenly;

[0029] The exhaust gas detection device for exhaust gas treatment has a detachable connection between the connection ring and the connection block at the bottom of the detection chamber. After the detection chamber is removed, it can be connected to the mounting block and placed on the base, so that multiple detection chambers can be placed on the base. Different detection liquids can be filled in different detection chambers to detect different exhaust gases, which is more flexible to use.

[0030] The detection method of the exhaust gas detection device for exhaust gas treatment extracts and discharges the exhaust gas by controlling the piston, thereby ensuring the uniformity of the single detection amount of the exhaust gas, and realizing the detection of the exhaust gas through the reaction changes of the same gas volume and the detection liquid in the same detection chamber. It is more environmentally friendly and energy-saving, and the detection results are intuitive. The device has low use costs and can be widely used in various exhaust gas detection fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of the present invention from the side;

[0033] Figure 3 This is a schematic diagram of the main cross-sectional structure of the waste gas storage chamber of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the detection chamber of the present invention when viewed from above;

[0035] Figure 5 This is a schematic diagram of the main cross-sectional structure of the detection chamber of the present invention;

[0036] Figure 6 This is a schematic diagram of the main cross-sectional structure of the cover body of the present invention;

[0037] Figure 7 This is a schematic diagram of the main cross-sectional structure of the support seat of the present invention;

[0038] Figure 8 It is a schematic diagram of the main cross-sectional structure of the connecting block of the present invention.

[0039] In the figure: 1, base; 2, exhaust gas storage chamber; 3, exhaust gas collection pipe; 4, first one-way conduction mechanism; 5, piston; 6, control rod; 7, locking groove; 8, locking rod; 9, mounting plate; 10, air supply hose; 11, connector; 12, detection chamber; 13, cover; 14, air supply pipe; 15, air outlet; 16, exhaust pipe; 17, second one-way conduction mechanism; 1701, baffle; 1702, communication port; 1 703, sealing block; 1704, first spring; 1705, fixing plate; 18, third one-way conduction mechanism; 19, anti-overflow plate; 20, air vent; 21, movable shaft; 22, blade; 23, auxiliary shaft; 24, connecting block; 25, correction ball; 26, supporting seat; 27, counterweight block; 28, connecting ring; 29, connecting groove; 30, positioning block; 31, second spring; 32, auxiliary ring; 33, mounting block. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 8 The present invention provides a technical solution: an exhaust gas detection device for exhaust gas treatment, comprising a base 1 and an exhaust gas collection pipe 3, wherein the exhaust gas collection pipe 3 is arranged above the base 1 to collect the treated exhaust gas; Example

[0042] like Figure 1-Figure 3 As shown, the present invention provides a technical solution: an exhaust gas detection device for exhaust gas treatment, which discloses:

[0043] An exhaust gas storage chamber 2 is installed above the base 1 to collect exhaust gas, and the left end of the exhaust gas storage chamber 2 is connected to the exhaust gas collection pipe 3, so that the exhaust gas collection pipe 3 can deliver gas into the exhaust gas storage chamber 2. A gas pumping mechanism is arranged inside the exhaust gas storage chamber 2 to suck the gas at the exhaust gas collection pipe 3 into the exhaust gas storage chamber 2. A first one-way conducting mechanism 4 is arranged at the end of the exhaust gas collection pipe 3. The conducting direction of the first one-way conducting mechanism 4 is from the exhaust gas collection pipe 3 to the exhaust gas storage chamber 2. An air supply hose 10 is connected to the left end of the exhaust gas storage chamber 2, and an air supply pipe 14 is connected to the end of the air supply hose 10, and a cover body 13 is fixed to the outside of the air supply pipe 14, and a detection chamber 12 is connected below the cover body 13. The lower end of the air supply pipe 14 is located at the bottom of the detection chamber 12, and the air supply pipe 14 is connected to the exhaust gas storage chamber 2. An air outlet 15 is provided at the lower end of 14 to deliver gas into the detection chamber 12 to mix with the detection liquid. A third one-way conduction mechanism 18 is provided inside the air supply pipe 14, and the conduction direction of the third one-way conduction mechanism 18 is from the air supply hose 10 to the inside of the air supply pipe 14. An exhaust pipe 16 is provided above the cover body 13 to discharge the detected gas, and a second one-way conduction mechanism 17 is provided inside the exhaust pipe 16, and the conduction direction of the second one-way conduction mechanism 17 is from the inside of the detection chamber 12 to the outside. The gas pumping mechanism includes a piston 5 and a control rod 6. The piston 5 is arranged inside and between the exhaust gas storage chamber 2 to form a left-right sliding structure. The gas is pumped by the movement of the piston 5. The control rod 6 is fixed on the right side of the piston 5 to control the movement of the piston 5.

[0044] A detection method of an exhaust gas detection device for exhaust gas treatment, the method comprising the following steps:

[0045] S1: Add gas detection reagent into the forward detection chamber 12, the detection reagent can be used to absorb acidic or alkaline gas, and add phenolphthalein reagent to make it colorable later, move the device to the exhaust gas discharge, and place the exhaust gas collection pipe 3 and the exhaust gas discharge opposite to each other, then pull the control rod 6 to drive the piston 5 to move in the exhaust gas storage chamber 2, the air pressure in the exhaust gas storage chamber 2 is reduced, the first one-way conduction mechanism 4 is opened, and the external gas enters the exhaust gas storage chamber 2 through the exhaust gas collection pipe 3, and the gas collection amount is controlled by the moving distance of the control rod 6;

[0046] S2: After the gas collection is completed, the control rod 6 can be pushed to squeeze out the gas in the waste gas storage chamber 2. At this time, the first one-way conduction mechanism 4 is closed, and the gas enters the interior of the gas delivery pipe 14 through the third one-way conduction mechanism 18, and enters the detection chamber 12 through the gas outlet 15 to react with the detection liquid, and the impurities in the gas are also adsorbed in the liquid at the same time;

[0047] S3: The pollutant content of the gas after the reaction treatment will also decrease. The treated gas is discharged from the detection chamber 12 through the second unidirectional conduction mechanism 17. The waste gas treatment status can be detected by comparing the color change of the liquid in the detection chamber 12 and the residual impurities. Example

[0048] like Figure 1-Figure 6 As shown, the present invention provides a technical solution: an exhaust gas detection device for exhaust gas treatment, which discloses:

[0049] A locking groove 7 is evenly opened horizontally above the control rod 6, and a locking rod 8 is engaged above the locking groove 7, and the locking rod 8 is located on the outside of the exhaust gas storage chamber 2, and the outer side of the locking rod 8 is threadedly connected to a mounting plate 9, and the mounting plate 9 is fixed to the surface of the exhaust gas storage chamber 2 to provide support for the locking rod 8, a connector 11 is installed at the end of the air supply hose 10, and a threaded connection is formed between the connector 11 and the air supply pipe 14, so that the air supply hose 10 and the air supply pipe 14 can be disassembled, the air supply pipe 14 is fixedly connected to the cover body 13, and a threaded connection is formed between the cover body 13 and the detection chamber 12, the second unidirectional conduction mechanism 17 includes a baffle 1701, a connecting port 1702, a sealing block 1703, a first spring 1704 and a fixing plate 1705, the baffle 1701 is fixed to the inside of the exhaust pipe 16, the connecting port 1702 is opened in the middle of the baffle 1701, and the sealing block 170 3, arranged above the connecting port 1702 to seal the connecting port 1702, a first spring 1704, arranged above the sealing block 1703 to provide a downward thrust for the sealing block 1703, a fixing plate 1705, fixed inside the exhaust pipe 16 to provide support for the first spring 1704, an anti-overflow plate 19 is arranged below the exhaust pipe 16, and an up-and-down sliding structure is formed between the anti-overflow plate 19 and the exhaust pipe 16, and the anti-overflow plate 19 is located below the baffle 1701, an air hole 20 is opened on the anti-overflow plate 19, and the position of the air hole 20 is staggered with the position of the connecting port 1702, a movable shaft 21 is rotatably installed inside the detection chamber 12, and a blade 22 is fixed on the surface of the movable shaft 21, and the end of the blade 22 is located outside the air outlet 15, so that the air outlet 15 can blow the blade 22 to rotate, and an auxiliary shaft 23 is fixed on the surface of the movable shaft 21;

[0050] The gas entering the exhaust gas storage chamber 2 can be stored. When storing, the locking rod 8 is rotated to move it through the threaded connection between the mounting plate 9, so that the locking rod 8 and the locking groove 7 are connected, and the position of the control rod 6 is locked. When exhaust is required later, the locking rod 8 is rotated again to release the connection between the locking rod 8 and the locking groove 7. The air supply pipe 14 is connected to the air supply hose 10 through the connector 11. The connector 11 can be removed from the air supply pipe 14 by rotating it. When the gas is discharged through the air outlet 15 below the air supply pipe 14, the gas will blow The blades 22 rotate, driving the movable shaft 21 and the auxiliary shaft 23 to rotate, stirring the liquid so that it can be mixed more evenly with the gas. After the mixing is completed, the remaining gas is discharged outward through the exhaust pipe 16. The gas enters the connecting port 1702 through the air vent 20 to push the sealing block 1703 to move and discharge the gas outward. When the detection chamber 12 is tilted, the liquid flows into the exhaust pipe 16 and will push the anti-overflow plate 19 to move, so that the anti-overflow plate 19 and the baffle 1701 fit together, and the connecting port 1702 is blocked to prevent liquid overflow. Example

[0051] like Figure 6-Figure 8 As shown, the present invention provides a technical solution: an exhaust gas detection device for exhaust gas treatment, which discloses:

[0052] A connecting block 24 is connected to the bottom of the detection chamber 12, and a correction ball 25 is fixed to the bottom of the connecting block 24, and a support seat 26 is rotatably connected to the outer side of the correction ball 25, and a counterweight block 27 is fixed to the bottom of the correction ball 25, and the counterweight block 27 provides a vertical pulling force for the correction ball 25 to keep the vertical state of the detection chamber 12, a connecting ring 28 is fixed to the bottom of the detection chamber 12, and a detachable connection is formed between the connecting ring 28 and the connecting block 24, a positioning block 30 is arranged above the connecting block 24, and a horizontal sliding structure is formed between the positioning block 30 and the connecting block 24, and the positioning block 30 and the connecting block 24 form a horizontal sliding structure ... The outer end of the positioning block 30 is designed in an arc-shaped structure, and the inner end of the positioning block 30 is connected to a second spring 31 to provide an external thrust for the positioning block 30. An annular connecting groove 29 is provided inside the connecting ring 28. The positioning block 30 and the connecting groove 29 are engaged with each other to position the connection between the connecting block 24 and the connecting ring 28. An auxiliary ring 32 is provided on the outer side of the connecting ring 28. The auxiliary ring 32 is fixed below the detection chamber 12. A mounting block 33 is fixed above the base 1. The middle part of the mounting block 33 is designed in a notch-shaped structure, and a threaded connection is formed between the mounting block 33 and the auxiliary ring 32.

[0053] The counterweight block 27 provides a downward pulling force for the correction ball 25, which can maintain the vertical state of the detection chamber 12, so that the air supply pipe 14 can be maintained at the bottom of the liquid in the detection chamber 12, so that the subsequent gas can fully contact the liquid, and the detection chamber 12 can be removed from the connecting block 24. When disassembling, the detection chamber 12 can be directly pulled upward to squeeze the positioning block 30 out of the connecting groove 29. After disassembly, the detection chamber 12 can be placed on the top of the base 1 and positioned by the threaded connection between the auxiliary ring 32 and the mounting block 33. It is also possible to place multiple groups of detection chambers 12 on the base 1 for backup, which can be adapted to different subsequent detection needs.

[0054] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0055] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An exhaust gas detection device for exhaust gas treatment, comprising a base (1) and an exhaust gas collection pipe (3), wherein the exhaust gas collection pipe (3) is arranged above the base (1) to collect the treated exhaust gas; Features: An exhaust gas storage chamber (2) is installed above the base (1) to collect exhaust gas, and the left end of the exhaust gas storage chamber (2) and the exhaust gas collection pipe (3) are connected to each other so that the exhaust gas collection pipe (3) can deliver gas into the exhaust gas storage chamber (2). A gas pumping mechanism is provided inside the exhaust gas storage chamber (2) to suck gas from the exhaust gas collection pipe (3) into the exhaust gas storage chamber (2). A first one-way conducting mechanism (4) is provided at the end of the exhaust gas collection pipe (3). The conducting direction of the first one-way conducting mechanism (4) is from the exhaust gas collection pipe (3) to the exhaust gas storage chamber (2). The left end of the exhaust gas storage chamber (2) is connected to an air supply hose (10), and the end of the air supply hose (10) is connected to an air supply pipe (14), and the outer side of the air supply pipe (14) is fixed. A cover body (13) is provided, wherein a detection chamber (12) is connected to the bottom of the cover body (13), the lower end of the air supply pipe (14) is located at the bottom of the detection chamber (12), and an air outlet (15) is provided at the lower end of the air supply pipe (14) to supply gas into the detection chamber (12) to mix with the detection liquid, a third one-way conducting mechanism (18) is provided inside the air supply pipe (14), and the conducting direction of the third one-way conducting mechanism (18) is from the air supply hose (10) to the inside of the air supply pipe (14), an exhaust pipe (16) is provided above the cover body (13) to discharge the detected gas, and a second one-way conducting mechanism (17) is provided inside the exhaust pipe (16), and the conducting direction of the second one-way conducting mechanism (17) is from the inside of the detection chamber (12) to the outside; A connecting block (24) is connected to the bottom of the detection chamber (12), and a calibration ball (25) is fixed to the bottom of the connecting block (24), and the outer side of the calibration ball (25) is rotatably connected to a support seat (26), a counterweight block (27) is fixed to the bottom of the calibration ball (25), and the counterweight block (27) provides a vertical pulling force for the calibration ball (25) to maintain the vertical state of the detection chamber (12), and a connecting ring (28) is fixed to the bottom of the detection chamber (12), and a detachable connection is formed between the connecting ring (28) and the connecting block (24); A positioning block (30) is arranged above the connecting block (24), and a horizontal sliding structure is formed between the positioning block (30) and the connecting block (24), and the outer end of the positioning block (30) is designed in an arc-shaped structure, and the inner end of the positioning block (30) is connected to a second spring (31) to provide an external thrust for the positioning block (30), and an annular connecting groove (29) is provided inside the connecting ring (28), and the positioning block (30) and the connecting groove (29) are engaged with each other to position the connection between the connecting block (24) and the connecting ring (28), and an auxiliary ring (32) is arranged on the outer side of the connecting ring (28), and the auxiliary ring (32) is fixed below the detection chamber (12), and a mounting block (33) is fixed above the base (1), and the middle part of the mounting block (33) is designed in a notch-shaped structure, and a threaded connection is formed between the mounting block (33) and the auxiliary ring (32).

2. The exhaust gas detection device for exhaust gas treatment according to claim 1, characterized in that: The gas pumping mechanism comprises a piston (5) and a control rod (6); A piston (5) is arranged inside the exhaust gas storage chamber (2) and between the exhaust gas storage chamber (2) to form a left-right sliding structure, and gas is pumped through the movement of the piston (5); A control rod (6) is fixed to the right side of the piston (5) to control the movement of the piston (5).

3. The exhaust gas detection device for exhaust gas treatment according to claim 2, characterized in that: The control rod (6) is evenly and transversely provided with locking grooves (7) above, and a locking rod (8) is engaged above the locking groove (7), and the locking rod (8) is located outside the exhaust gas storage chamber (2), and a mounting plate (9) is threadedly connected to the outside of the locking rod (8), and the mounting plate (9) is fixed to the surface of the exhaust gas storage chamber (2) to provide support for the locking rod (8).

4. The exhaust gas detection device for exhaust gas treatment according to claim 1, characterized in that: A connector (11) is installed at the end of the air supply hose (10), and a threaded connection is formed between the connector (11) and the air supply pipe (14), so that the air supply hose (10) and the air supply pipe (14) can be disassembled. The air supply pipe (14) and the cover body (13) are fixedly connected, and a threaded connection is formed between the cover body (13) and the detection chamber (12).

5. The exhaust gas detection device for exhaust gas treatment according to claim 1, characterized in that: The second one-way conduction mechanism (17) comprises a baffle (1701), a communication port (1702), a sealing block (1703), a first spring (1704) and a fixing plate (1705); A baffle (1701) fixed inside the exhaust pipe (16); A communication port (1702) is provided in the middle of the baffle (1701); A sealing block (1703) is arranged above the communication opening (1702) to seal the communication opening (1702); A first spring (1704), arranged above the sealing block (1703) to provide a downward thrust for the sealing block (1703); The fixing plate (1705) is fixed inside the exhaust pipe (16) to provide support for the first spring (1704).

6. The exhaust gas detection device for exhaust gas treatment according to claim 5, characterized in that: An anti-overflow plate (19) is provided below the exhaust pipe (16), and an up-and-down sliding structure is formed between the anti-overflow plate (19) and the exhaust pipe (16), and the anti-overflow plate (19) is located below the baffle plate (1701), and an air hole (20) is provided on the anti-overflow plate (19), and the position of the air hole (20) and the position of the connecting port (1702) are staggered.

7. The exhaust gas detection device for exhaust gas treatment according to claim 1, characterized in that: A movable shaft (21) is rotatably mounted inside the detection chamber (12), and a blade (22) is fixed on the surface of the movable shaft (21), and the end of the blade (22) is located outside the air outlet (15), so that the air outlet (15) can blow the blade (22) to rotate, and an auxiliary shaft (23) is fixed on the surface of the movable shaft (21).

8. A detection method for an exhaust gas detection device for exhaust gas treatment, characterized in that: The method adopts the exhaust gas detection device in claim 2, and the method comprises the following steps: S1: adding a gas detection reagent into the forward detection chamber (12), moving the device to the exhaust gas discharge location, placing the exhaust gas collection pipe (3) opposite to the exhaust gas discharge location, and then pulling the control rod (6) to drive the piston (5) to move in the exhaust gas storage chamber (2), the gas pressure in the exhaust gas storage chamber (2) is reduced, the first one-way conduction mechanism (4) is opened, and external gas enters the exhaust gas storage chamber (2) through the exhaust gas collection pipe (3), and the gas collection amount is controlled by the moving distance of the control rod (6); S2: After the gas collection is completed, the control rod (6) can be pushed to squeeze out the gas in the waste gas storage chamber (2). At this time, the first one-way conduction mechanism (4) is closed, and the gas enters the interior of the gas supply pipe (14) through the third one-way conduction mechanism (18), and enters the detection chamber (12) through the gas outlet (15) to react with the detection liquid, and impurities in the gas are also adsorbed in the liquid at the same time; S3: The pollutant content of the gas after the reaction treatment will also decrease, and the treated gas is discharged from the detection chamber (12) through the second one-way conduction mechanism (17). Subsequently, the waste gas treatment status can be detected by comparing the color change of the liquid in the detection chamber (12) and the amount of impurities remaining.

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