An exhaust gas sampling and detection device

Abstract

The present invention discloses an exhaust gas sampling and detection device, including a detector, an input tube installed on the top of the detector, and a box body, the box body is fixedly connected to the top of the detector, six collection bottles rotating in the box body are arranged in the box body, one side of the six collection bottles are connected and fixedly connected with a first connector, one of the first connectors is directly opposite to one end of the input tube, and the six collection bottles are connected and fixedly connected with an L-shaped joint. The exhaust gas sampling and detection device of the present invention collects exhaust gas through an automatic sampling component. During the process of collecting exhaust gas, the collection bottle after the exhaust gas collection is completed rotates to the lowest position, and the lowest collection bottle is pushed by the pushing component to connect the second connector corresponding to the first connector, so that the exhaust gas collected in the lowest collection bottle enters the sample tube through the L-shaped connector and the second connector for retention, which is helpful for subsequent review and comparison, thereby improving the accuracy and reliability of the analysis.

Description

Technical Field

[0001] The present invention relates to the technical field of exhaust gas detection, and in particular to an exhaust gas sampling and detection device. Background Art

[0002] With the advancement of industrialization, waste gas emissions have caused serious pollution to the atmospheric environment and posed a huge threat to human health and the ecological environment. In order to effectively control waste gas emissions, it is necessary to detect waste gas through waste gas sampling and detection equipment. Waste gas sampling and detection equipment is used in various industrial enterprises, such as chemical plants, power plants, steel plants, etc. Waste gas sampling and detection technology is used to detect waste gas emissions in the production process.

[0003] Existing exhaust gas sampling and detection equipment usually uses adsorbents such as activated carbon or polymer materials to capture VOCs in the air, and then transfers them to analytical instruments for detection. During use, current sampling and detection devices are difficult to retain the sampled exhaust gas samples, resulting in the exhaust gas sampling and detection equipment being relatively limited in exhaust gas detection. After the exhaust gas sampling and detection equipment initially completes the detection task, the exhaust gas samples will be directly discharged or purified, making them unusable for subsequent review and comparison, which can easily affect the accuracy and reliability of subsequent analysis. Summary of the invention

[0004] The object of the present invention is to provide an exhaust gas sampling and detection device to solve the problem of difficulty in retaining the sampled exhaust gas samples raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an exhaust gas sampling and detection device, comprising: a detector, an input pipe is installed on the top of the detector, and also includes:

[0006] A box body, the box body is fixedly connected to the top of the detector, and six collection bottles rotating in the box body are arranged inside the box body, one side of the six collection bottles is connected and fixedly connected to a first connector, one of the first connectors is directly opposite to one end of the input pipe, and the six collection bottles are connected and fixedly connected to an L-shaped connector, and a sample retention component for retaining exhaust gas samples is arranged in the box body;

[0007] The sample retention component includes two rotating rods, which are rotatably connected to the inner wall of the box body. The outer surfaces of the two rotating rods are fixedly connected with rotating rollers. The two rotating rollers are connected by a conveyor belt transmission. A plurality of clamping blocks are fixedly connected to the surface of the conveyor belt. The clamping block includes two elastic clamping plates. A sample tube is arranged between the two clamping plates of the clamping block. The conveyor belt is used to drive the sample tube to move. A second connector is fixedly connected to one side of the plurality of sample tubes, and one of the second connectors is directly opposite to one of the L-shaped joints.

[0008] As a preferred technical solution of the present invention, an automatic sampling component for sampling exhaust gas is provided on the box body, and the automatic sampling component includes a connecting rod rotatably connected to the inner wall of the box body, a horizontal plate is fixedly connected to the connecting rod, a first circular ring plate is provided on the horizontal plate, the horizontal plate is fixedly connected to the inner wall of the first circular ring plate, six circular ring sleeves are fixedly connected to the first circular ring plate, and the six collection bottles are all slidably connected in the corresponding circular ring sleeves, a fixed tube is fixedly connected to the side wall of the box body, the fixed tube is directly opposite to the top first connector, and a conical sleeve is fixedly connected to one end of the fixed tube.

[0009] As a preferred technical solution of the present invention, a driving component for driving a sample retention component and an automatic sampling component is provided on the box body, and the driving component includes a first L-shaped plate fixedly connected to the left end of the box body, a first motor is fixedly connected to the first L-shaped plate, one end of a connecting rod is fixedly connected to the output end of the first motor, a rotating shaft is rotatably connected to the left end of the box body, and pulleys are fixedly connected to the outer surfaces of the rotating shaft and the connecting rod, and the two pulleys are connected by a transmission belt, a first gear is fixedly connected to one end of the rotating shaft, a second gear is fixedly connected to one end of one of the rotating rods, the second gear and the first gear are meshed with each other, and the diameter of the second gear is larger than the diameter of the first gear.

[0010] As a preferred technical solution of the present invention, a pushing assembly for pushing the collection bottles is provided on the box body, and the pushing assembly includes a second L-shaped plate fixedly connected to the left end of the box body, an electric push rod is fixedly connected to the second L-shaped plate, and a push plate is fixedly connected to the telescopic end of the electric push rod, and two first magnets are fixedly connected to one side of the push plate, and one end of the six collection bottles is fixedly connected to the second magnet, and the two first magnets are directly opposite to the topmost and bottommost second magnets.

[0011] As a preferred technical solution of the present invention, a closing component for closing the first connecting head and the L-shaped joint is provided on the first connecting head and the L-shaped joint, and the closing component includes two third joints fixedly connected to the first connecting head and the L-shaped joint, the inner walls of the two third joints are fixedly connected to fixed plates, the inner walls of the third joints are slidably connected to a movable plate, a spring is fixedly connected between the movable plate and the fixed plate, a sealing block is fixedly connected to one side of the movable plate, the inner wall of the third joint is fixedly connected to a first circular plate, a circular opening is opened in the middle of the first circular plate, and the sealing block is inserted in the circular opening.

[0012] As a preferred technical solution of the present invention, the input pipe, the six second connecting heads and the fixed pipe are all provided with a conducting component for conducting the closed component, the conducting component includes a plurality of fourth joints fixedly connected to the input pipe, the plurality of second connecting heads and the fixed pipe, the inner walls of the plurality of fourth joints are slidably connected with a second circular ring plate, the inner wall of the second circular ring plate is fixedly connected with a connecting pipe, the connecting pipe is provided with a plurality of rectangular openings and circular holes, the inner wall of the fourth joint is fixedly connected with two blocks, the inner wall of the fourth joint is fixedly connected with a third circular plate, a sealing opening is provided in the middle of the third circular plate, a sealing ball is clamped on the inner wall of the sealing opening, and two elastic ropes are fixedly connected between the inner wall of the fourth joint and the sealing ball.

[0013] As a preferred technical solution of the present invention, a fixing frame, a sponge block and a filter screen are fixedly connected to the inner wall of the conical sleeve. The fixing frame and the filter screen are used to clamp the sponge block, the sponge block is used to filter moisture in the exhaust gas, and the filter screen is used to filter dust in the exhaust gas.

[0014] As a preferred technical solution of the present invention, a rectangular shell is fixedly connected to the top of the box body, a second motor is fixedly connected to the inner top wall of the rectangular shell, a first connecting shaft is fixedly connected to the output end of the second motor, a plurality of first fan blades are fixedly connected to the outer surface of the first connecting shaft, an air inlet is provided on the rectangular shell, an L-shaped tube is fixedly connected to the bottom end of the rectangular shell, the L-shaped tube passes through the upper end of the box body, a conducting component is provided at one end of the L-shaped tube, and the conducting component is used to be connected to the topmost collection bottle through a first connector.

[0015] As a preferred technical solution of the present invention, a positioning plate is fixedly connected to the inner wall of the conical sleeve, a second connecting shaft is rotatably connected to one side of the positioning plate, a plurality of second fan blades are fixedly connected to the outer surface of the second connecting shaft, one end of the second connecting shaft is fixedly connected to a connecting plate, a scraper is fixedly connected to one side of the connecting plate, and the scraper is in contact with one side of the filter screen.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention is provided with a sample retention component, and the exhaust gas is collected by an automatic sampling component. During the process of collecting the exhaust gas, the collection bottle after the exhaust gas collection is completed rotates to the lowermost position, and the lowermost collection bottle is pushed by the pushing component to connect the second connector corresponding to the first connector, so that the exhaust gas collected in the lowermost collection bottle enters the sample tube through the L-shaped joint and the second connector for retention, which is helpful for subsequent review and comparison, thereby improving the accuracy and reliability of the analysis.

[0018] The present invention is provided with an automatic sampling component, which pushes the top collection bottle through the pushing component, so that the first connecting head on one side of the top collection bottle is connected to the fixed tube and the conical sleeve, and the exhaust gas enters the collection bottle through the conical sleeve, the fixed tube and the first connecting head for collection. After the collection is completed, the driving component is started to drive the connecting rod to rotate, and the connecting rod drives the six collection bottles to rotate as a whole, so that the next collection bottle that needs to collect exhaust gas rotates to the top for collection again. The six collection bottles can sample the exhaust gas at different time periods, so as to capture the changes of the exhaust gas components over time, which is helpful to more comprehensively understand the emission characteristics and changing trends of the exhaust gas, and improve the accuracy and reliability of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the assembly appearance structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the front cross-sectional structure of the box body of the present invention;

[0021] Figure 3 It is a schematic diagram of the right side cross-sectional structure of the box body of the present invention;

[0022] Figure 4 For the present invention Figure 3 A is an enlarged schematic diagram of the structure;

[0023] Figure 5 It is a schematic diagram of the structure of the clamp block and the sample tube of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the automatic sampling component of the present invention;

[0025] Figure 7 It is a schematic diagram of the collection bottle and the circular ring sleeve structure of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the driving assembly of the present invention;

[0027] Fig. 9 It is a schematic diagram of the structure of the driving component of the present invention;

[0028] Fig.10 It is a schematic diagram of the structure of the closure assembly of the present invention;

[0029] Fig.11 It is a schematic diagram of the structure of the conducting component of the present invention;

[0030] Fig.12 It is a schematic diagram of the structure of the fixing frame, sponge block and filter screen of the present invention;

[0031] Fig.13 This is a schematic diagram of the first fan blade structure of the present invention;

[0032] Fig.14 It is a schematic diagram of the second fan blade and scraper structure of the present invention.

[0033] In the figure: 101, detector; 102, input tube; 103, box; 104, collection bottle; 105, first connector; 106, L-shaped connector; 201, rotating rod; 202, rotating roller; 203, conveyor belt; 204, clamping block; 205, sample tube; 206, second connector; 301, connecting rod; 302, horizontal plate; 303, first circular plate; 304, circular ring; 305, fixed tube; 306, conical sleeve; 401, first L-shaped plate; 402, first motor; 403, rotating shaft; 404, pulley; 405, transmission belt; 406, first gear; 407, second gear; 501, second L-shaped plate; 502, electric push rod; 503, push plate; 504, first magnet; 505, second magnet; 601, third joint; 602, fixed plate; 603, movable plate; 604, spring; 605, sealing block; 606, first circular plate; 607, circular opening; 701, fourth joint; 702, second annular plate; 703, connecting pipe; 704, rectangular opening; 705, circular hole; 706, stopper; 707, third circular plate; 708, sealing opening; 709, sealing ball; 710, elastic rope; 801, fixed frame; 802, sponge block; 803, filter screen; 804, rectangular shell; 805, second motor; 806, first connecting shaft; 807, first fan blade; 808, air inlet; 809, L-shaped tube; 810, positioning plate; 811, second connecting shaft; 812, second fan blade; 813, connecting plate; 814, scraper. DETAILED DESCRIPTION

[0034] 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.

[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] See also Figure 1-14The exhaust gas sampling and detection equipment provided in the embodiment of the present application includes: a detector 101, and an input pipe 102 is installed on the top of the detector 101. The exhaust gas sampling and detection equipment also includes a box 103, which is fixedly connected to the top of the detector 101. Six rotatable collection bottles 104 are arranged in the box 103, and one side of the six collection bottles 104 is connected and fixedly connected to a first connector 105, and one of the first connectors 105 is directly opposite to one end of the input pipe 102.

[0037] The equipment is set at the location where exhaust gas needs to be detected, and the exhaust gas can be collected through the collection bottle 104 during use. Specifically, when it is necessary to collect exhaust gas through the collection bottle 104, since six collection bottles 104 are set, the exhaust gas can be collected every four hours within twenty-four hours. The collected exhaust gas is temporarily stored in the collection bottle 104, wherein the time interval for collecting exhaust gas within twenty-four hours can be controlled by increasing or decreasing the number of collection bottles 104. During the collection process of the collection bottles 104, the exhaust gas is collected in the top collection bottle 104. After the collection of the collection bottle 104 is completed, the six collection bottles 104 are rotated sixty degrees together in the box 103, so that the next collection bottle 104 that has not collected exhaust gas moves to the top to wait for collection, so that the collection bottle 104 that was originally at the top and has collected exhaust gas The bottle 104 rotates toward the bottom of the box 103, waiting to be rotated to the bottom to discharge the collected waste gas, and the waste gas is temporarily stored in the collection bottle 104. When a collection bottle 104 that has collected waste gas rotates to the bottom, the first connector 105 at one end thereof is aligned with the input pipe 102. The first connector 105 is connected to the input pipe 102, so that the waste gas collected in the collection bottle 104 enters the detector 101 through the first connector 105 and the input pipe 102, and the detector 101 performs component analysis and concentration measurement on the waste gas.

[0038] The six collection bottles 104 are all connected and fixed with an L-shaped joint 106. A sample retention component for storing exhaust gas samples is arranged in the box 103. The sample retention component includes two rotating rods 201, and the two rotating rods 201 are rotatably connected to the inner wall of the box 103. The outer surfaces of the two rotating rods 201 are fixed with rotating rollers 202. The two rotating rollers 202 are connected by a conveyor belt 203. The surface of the conveyor belt 203 is fixed with a plurality of clamping blocks 204. The clamping blocks 204 include two elastic clamping plates. A sample tube 205 is arranged between the two clamping plates of the clamping blocks 204. The conveyor belt 203 is used to drive the sample tubes 205 to move. A second connector 206 is fixed to one side of the plurality of sample tubes 205, and one of the second connectors 206 is directly opposite to one of the L-shaped joints 106.

[0039] During the process of collecting waste gas by the collection bottle 104, a collection bottle 104 that has collected waste gas will rotate to the lowest position, and the collection bottle 104 can pass the waste gas in the collection bottle 104 into the detector 101 through the connection between the first connector 105 and the input tube 102. At the same time, the L-shaped connector 106 on the collection bottle 104 is connected with the corresponding second connector 206, so that the waste gas collected in the lowest collection bottle 104 enters the sample tube 205 through the L-shaped connector 106 and the second connector 206 for retention. Subsequently, the rotating rod 201 is rotated, the rotating rod 201 drives the rotating roller 202 to rotate, the rotating roller 202 drives the conveyor belt 203 to rotate, and the conveyor belt 203 drives the multiple clamps 204 and the sample tube 205 to rotate, so that the next sample tube 205 is directly opposite to the lowest L-shaped connector 106, which is convenient for retaining the waste gas in the next collection bottle 104, which is helpful for subsequent review and comparison, thereby improving the accuracy and reliability of the analysis.

[0040] See also Figure 2 , Figure 6 and Figure 7 The box body 103 is provided with an automatic sampling assembly for sampling exhaust gas, and the automatic sampling assembly includes a connecting rod 301 rotatably connected to the inner wall of the box body 103, a horizontal plate 302 is fixedly connected to the connecting rod 301, a first circular plate 303 is provided on the horizontal plate 302, the horizontal plate 302 is fixedly connected to the inner wall of the first circular plate 303, six circular rings 304 are fixedly connected to the first circular plate 303, and the six collection bottles 104 are all slidably connected in the corresponding circular rings 304. A fixed tube 305 is fixedly connected to the side wall of the box body 103, and the fixed tube 305 is directly opposite to the top first connector 105, and a conical sleeve 306 is fixedly connected to one end of the fixed tube 305.

[0041] When it is necessary to automatically sample the exhaust gas, the first connector 105 on the top collection bottle 104 is connected to the fixed tube 305, so that the exhaust gas enters the fixed tube 305 through the conical sleeve 306, and then enters the collection bottle 104 through the fixed tube 305 and the first connector 105. Subsequently, the connecting rod 301 is rotated, and the connecting rod 301 drives the horizontal plate 302 and the first circular plate 303 to rotate, and the first circular plate 303 drives the six circular sleeves 304 and the collection bottle 104 to rotate, and the collection bottle 104 that has completed sampling is removed from the fixed tube 305, so that the next collection bottle 104 and the first connector 105 are connected to the fixed tube 305, which is helpful for the subsequent re-collection of the exhaust gas, and the six collection bottles 104 can sample the exhaust gas at different time periods, so as to capture the changes in the exhaust gas components over time, which is helpful for a more comprehensive understanding of the emission characteristics and changing trends of the exhaust gas, and improves the accuracy and reliability of the detection.

[0042] See also Figure 8A driving assembly for driving the sample retention assembly and the automatic sampling assembly is provided on the box 103, and the driving assembly includes a first L-shaped plate 401 fixedly connected to the left end of the box 103, and a first motor 402 is fixedly connected to the first L-shaped plate 401, and one end of the connecting rod 301 is fixedly connected to the output end of the first motor 402. The left end of the box 103 is rotatably connected to a rotating shaft 403, and the outer surfaces of the rotating shaft 403 and the connecting rod 301 are fixedly connected to pulleys 404, and the two pulleys 404 are connected to each other through a transmission belt 405. One end of the rotating shaft 403 is fixedly connected to a first gear 406, and one end of one of the rotating rods 201 is fixedly connected to a second gear 407, and the second gear 407 is meshed with the first gear 406, and the diameter of the second gear 407 is larger than the diameter of the first gear 406.

[0043] When it is necessary to drive the sample retention component and the automatic sampling component, the first motor 402 is started, and the output end of the first motor 402 drives the connecting rod 301 to rotate, and the connecting rod 301 can drive the six collection bottles 104 to rotate as a whole, and each rotation angle is sixty degrees. During the rotation process, the connecting rod 301 can also drive one of the pulleys 404 to rotate, and through the action of the transmission belt 405, the other pulley 404 drives the rotating shaft 403 to rotate, and the rotating shaft 403 drives the first gear 406 to rotate, and the first gear 406 drives the second gear 407 and the rotating rod 201 to rotate. The rotating rod 201 drives the conveyor belt 203 to move, and the conveyor belt 203 can drive the sample tube 205 to move. Since the diameter of the second gear 407 is larger than the diameter of the first gear 406, the first gear 406 can only drive the second gear 407 to rotate a smaller angle when it rotates a larger angle, so that the sample tube 205 moves a smaller distance, that is, each time the six collection bottles 104 rotate sixty degrees, all the sample tubes 205 move a short distance, so that the sample tube 205 that has retained the exhaust gas is no longer opposite to the lowest collection bottle 104, and the next sample tube 205 is opposite to the lowest collection bottle 104.

[0044] See also Fig. 9 A pushing assembly for pushing the collection bottles 104 is provided on the box body 103, and the pushing assembly includes a second L-shaped plate 501 fixedly connected to the left end of the box body 103, an electric push rod 502 is fixedly connected to the second L-shaped plate 501, and a push plate 503 is fixedly connected to the telescopic end of the electric push rod 502, and two first magnets 504 are fixedly connected to one side of the push plate 503, and one end of the six collection bottles 104 is fixedly connected to the second magnet 505, and the two first magnets 504 are directly opposite to the uppermost and lowermost second magnets 505.

[0045] When it is necessary to connect the top first connector 105 with the fixed tube 305, the electric push rod 502 is started, and the telescopic end of the electric push rod 502 drives the push plate 503 to move. When the push plate 503 is close to the collection bottle 104, the first magnet 504 and the second magnet 505 on the push plate 503 are attracted, so that the push plate 503 pushes the top collection bottle 104 and the bottom collection bottle 104 to slide in the annular sleeve 304, so that the top collection bottle 104 is connected to the fixed tube 305 through the first connector 105 to collect the waste gas, and the bottom collection bottle 104 is connected to the input tube 102 through the first connector 105, so that the detector 101 detects the waste gas, and the bottom collection bottle 104 can also be connected to the second connector 206 on the corresponding sample tube 205 through the L-shaped joint 106, and the sample tube 205 can retain the waste gas in the collection bottle 104, that is, the collection, detection and retention of waste gas are carried out simultaneously;

[0046] When the collection bottle 104 needs to be reset, the electric push rod 502 is started, and the telescopic end of the electric push rod 502 drives the push plate 503. Since the second magnet 505 and the first magnet 504 attract each other, the push plate 503 can drive the collection bottle 104 to reset when moving.

[0047] See also Fig.10 The first connector 105 and the L-shaped connector 106 are both provided with a closing component for closing the first connector 105 and the L-shaped connector 106, and the closing component includes two third connectors 601 fixedly connected to the first connector 105 and the L-shaped connector 106, the inner walls of the two third connectors 601 are both fixedly connected to a fixed plate 602, the inner walls of the third connectors 601 are slidably connected to a movable plate 603, a spring 604 is fixedly connected between the movable plate 603 and the fixed plate 602, a sealing block 605 is fixedly connected to one side of the movable plate 603, the inner wall of the third connector 601 is fixedly connected to a first circular plate 606, a circular opening 607 is opened in the middle of the first circular plate 606, and the sealing block 605 is inserted in the circular opening 607.

[0048] When it is necessary to collect, detect and store waste gas, the third joint 601 needs to be connected with the fixed pipe 305, the input pipe 102 and the second connector 206, and the sealing block 605 is pushed. The sealing block 605 drives the movable plate 603 to slide in the third joint 601, and the spring 604 is compressed to push the sealing block 605 away from the circular opening 607. The waste gas can be discharged through the circular opening 607, which is convenient for the collection bottle 104 to collect the waste gas.

[0049] When the third joint 601 needs to be sealed, the restriction on the sealing block 605 is released, the spring 604 rebounds to drive the movable plate 603 to slide, and the movable plate 603 drives the sealing block 605 to slide into the circular opening 607 to seal the circular opening 607.

[0050] See also Fig.11 The input pipe 102, the six second connectors 206 and the fixed pipe 305 are all provided with a conducting component for conducting the closed component. The conducting component includes a plurality of fourth joints 701 fixedly connected to the input pipe 102, the plurality of second connectors 206 and the fixed pipe 305. The inner walls of the plurality of fourth joints 701 are slidably connected with a second annular plate 702. The inner wall of the second annular plate 702 is fixedly connected with a connecting pipe 703. The connecting pipe 703 is provided with a plurality of rectangular openings 704 and circular holes 705. The inner wall of the fourth joint 701 is fixedly connected with two blocks 706. The inner wall of the fourth joint 701 is fixedly connected with a third circular plate 707. The middle part of the third circular plate 707 is provided with a sealing opening 708. The inner wall of the sealing opening 708 is engaged with a sealing ball 709. Two elastic ropes 710 are fixedly connected between the inner wall of the fourth joint 701 and the sealing ball 709.

[0051] When the corresponding third joint 601 and the corresponding fourth joint 701 need to be connected, the automatic sampling assembly is pushed by the pushing assembly, and the automatic sampling assembly drives the third joint 601 to move, so that the third joint 601 is connected to the fourth joint 701. When the connecting pipe 703 contacts the sealing block 605, the sealing block 605 can push the connecting pipe 703 and the second annular plate 702 to slide on the inner wall of the fourth joint 701. When the tip of the connecting pipe 703 contacts the sealing ball 709, the tip of the connecting pipe 703 can push the sealing ball 709 to leave the sealing port 708. , the elastic rope 710 is stretched, and when the second annular plate 702 slides to contact the side wall of the stopper 706, the second annular plate 702 will no longer move toward the inside of the fourth joint 701, and the third joint 601 and the fourth joint 701 continue to move toward each other, so that the connecting pipe 703 can have a thrust on the sealing block 605, and the connecting pipe 703 pushes the sealing block 605 to leave from the circular opening 607, so that the exhaust gas enters the fourth joint 701 through the circular opening 607, and is discharged through the rectangular opening 704, the circular hole 705 and the sealing opening 708, which is convenient for sampling, retention or detection of the exhaust gas.

[0052] When the third joint 601 and the fourth joint 701 need to be sealed, the automatic sampling assembly and the third joint 601 are driven to move by the pushing assembly. When the third joint 601 leaves the fourth joint 701, the elastic rope 710 rebounds, driving the sealing ball 709 to seal the sealing port 708.

[0053] See also Fig.12 The inner wall of the conical sleeve 306 is fixedly connected with a fixing frame 801, a sponge block 802 and a filter net 803. The fixing frame 801 and the filter net 803 are used to clamp the sponge block 802. The sponge block 802 is used to filter moisture in the exhaust gas. The filter net 803 is used to filter dust in the exhaust gas.

[0054] During the process of collecting exhaust gas in the collection bottle 104, the exhaust gas will pass through the sponge block 802 and the filter net 803 when entering the collection bottle 104. The filter net 803 can filter out dust and impurities in the exhaust gas to prevent dust and impurities from entering the collection bottle 104. The sponge block 802 can absorb moisture in the exhaust gas to prevent moisture from entering and interfering with detection, thereby improving the purity of the sampling. It can not only effectively filter impurities in the exhaust gas and protect the equipment, but also improve the accuracy and reliability of the sampling.

[0055] See also Fig.13 A rectangular shell 804 is fixedly connected to the top of the box body 103, a second motor 805 is fixedly connected to the inner top wall of the rectangular shell 804, a first connecting shaft 806 is fixedly connected to the output end of the second motor 805, a plurality of first fan blades 807 are fixedly connected to the outer surface of the first connecting shaft 806, an air inlet 808 is provided on the rectangular shell 804, an L-shaped tube 809 is fixedly connected to the bottom end of the rectangular shell 804, the L-shaped tube 809 passes through the upper end of the box body 103, a conducting component is arranged at one end of the L-shaped tube 809, and the conducting component is used to connect with the topmost collection bottle 104 through the first connector 105.

[0056] When the next collection bottle 104 for collecting waste gas moves to the top to wait for collection, the waste gas originally stored in the collection bottle 104 needs to be discharged, and the second motor 805 is started. The output end of the second motor 805 drives the first connecting shaft 806 and the multiple first fan blades 807 to rotate, so that the waste gas in the collection bottle 104 enters the rectangular shell 804 through the first connecting head 105, the L-shaped joint 106, the fourth joint 701 and the L-shaped tube 809, and is discharged through the air inlet 808.

[0057] When waste gas needs to be collected, the second motor 805 is started to drive the first blade 807 to rotate in the opposite direction. The first blade 807 can absorb gas from the collection bottle 104 through the L-shaped tube 809 to assist the collection bottle 104 in collecting waste gas from the outside.

[0058] See also Fig.14 A positioning plate 810 is fixedly connected to the inner wall of the conical sleeve 306, and a second connecting shaft 811 is rotatably connected to one side of the positioning plate 810. A plurality of second fan blades 812 are fixedly connected to the outer surface of the second connecting shaft 811. A connecting plate 813 is fixedly connected to one end of the second connecting shaft 811, and a scraper 814 is fixedly connected to one side of the connecting plate 813. The scraper 814 is in contact with one side of the filter screen 803.

[0059] During the process of exhaust gas collection by the collection bottle 104, the dust in the exhaust gas is blocked on the filter 803. During the process of the first fan blade 807 rotating to discharge the original exhaust gas in the collection bottle 104, the wind is discharged outward through the filter 803. The filter 803 can blow the second fan blade 812 to rotate, and the second fan blade 812 drives the second connecting shaft 811 to rotate. The second connecting shaft 811 drives the connecting plate 813 and the scraper 814 to rotate, so that the scraper 814 cleans the dust and impurities attached to the surface of the filter 803 to avoid clogging of the filter 803.

[0060] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. An exhaust gas sampling and detection device, comprising: A detector (101), wherein an input pipe (102) is installed on the top of the detector (101), characterized in that it further comprises: A box body (103), the box body (103) is fixedly connected to the top of the detector (101), six collection bottles (104) are arranged inside the box body (103) and rotate inside the box body (103), one side of the six collection bottles (104) is connected and fixedly connected to a first connector (105), one of the first connectors (105) is directly opposite to one end of the input pipe (102), and the six collection bottles (104) are connected and fixedly connected to an L-shaped connector (106), and a sample retention component for retaining exhaust gas samples is arranged inside the box body (103); The sample retention component comprises two rotating rods (201), the two rotating rods (201) are rotatably connected to the inner wall of the box body (103), the outer surfaces of the two rotating rods (201) are fixedly connected with rotating rollers (202), the two rotating rollers (202) are connected by transmission via a conveyor belt (203), a plurality of clamping blocks (204) are fixedly connected to the surface of the conveyor belt (203), the clamping block (204) comprises two elastic clamping plates, a sample tube (205) is arranged between the two clamping plates of the clamping block (204), the conveyor belt (203) is used to drive the sample tube (205) to move, a second connector (206) is fixedly connected to one side of the plurality of sample tubes (205), one of the second connectors (206) is directly opposite to one of the L-shaped joints (106); The box (103) is provided with an automatic sampling assembly for sampling exhaust gas, the automatic sampling assembly comprising a connecting rod (301) rotatably connected to the inner wall of the box (103), a horizontal plate (302) being fixedly connected to the connecting rod (301), a first annular plate (303) being provided on the horizontal plate (302), the horizontal plate (302) being fixedly connected to the inner wall of the first annular plate (303), six annular sleeves (304) being fixedly connected to the first annular plate (303), the six collection bottles (104) being slidably connected in corresponding annular sleeves (304), a fixed tube (305) being fixedly connected to the side wall of the box (103), the fixed tube (305) being directly opposite to the first connector (105) at the top, and a conical sleeve (306) being fixedly connected to one end of the fixed tube (305); The box (103) is provided with a driving component for driving the sample retention component and the automatic sampling component, the driving component comprising a first L-shaped plate (401) fixedly connected to the left end of the box (103), a first motor (402) fixedly connected to the first L-shaped plate (401), one end of the connecting rod (301) fixedly connected to the output end of the first motor (402), a rotating shaft (403) rotatably connected to the left end of the box (103), the rotating shaft (403) and the outer surface of the connecting rod (301) are both fixedly connected to pulleys (404), the two pulleys (404) are connected to each other by a transmission belt (405), one end of the rotating shaft (403) is fixedly connected to a first gear (406), one end of one of the rotating rods (201) is fixedly connected to a second gear (407), the second gear (407) and the first gear (406) are meshed with each other, and the diameter of the second gear (407) is greater than the diameter of the first gear (406); The box body (103) is provided with a pushing assembly for pushing the collection bottles (104), the pushing assembly comprising a second L-shaped plate (501) fixedly connected to the left end of the box body (103), an electric push rod (502) fixedly connected to the second L-shaped plate (501), a telescopic end of the electric push rod (502) fixedly connected to a pushing plate (503), one side of the pushing plate (503) fixedly connected to two first magnets (504), one end of the six collection bottles (104) fixedly connected to a second magnet (505), and the two first magnets (504) directly opposite to the uppermost and lowermost second magnets (505); The first connector (105) and the L-shaped connector (106) are both provided with a sealing component for sealing the first connector (105) and the L-shaped connector (106), the sealing component comprising two third connectors (601) fixedly connected to the first connector (105) and the L-shaped connector (106), the inner walls of the two third connectors (601) are both fixedly connected to a fixed plate (602), the inner walls of the third connectors (601) are slidably connected to a movable plate (603), a spring (604) is fixedly connected between the movable plate (603) and the fixed plate (602), a sealing block (605) is fixedly connected to one side of the movable plate (603), the inner wall of the third connector (601) is fixedly connected to a first circular plate (606), a circular opening (607) is opened in the middle of the first circular plate (606), and the sealing block (605) is inserted into the circular opening (607); The input pipe (102), the six second connectors (206) and the fixed pipe (305) are all provided with a conduction component for conducting the closed component, the conduction component comprising a plurality of fourth connectors (701) fixedly connected to the input pipe (102), the plurality of second connectors (206) and the fixed pipe (305), the inner walls of the plurality of fourth connectors (701) being slidably connected to a second annular plate (702), the inner wall of the second annular plate (702) being fixedly connected to a connecting pipe (703), the connecting pipe A plurality of rectangular openings (704) and circular holes (705) are provided on the fourth joint (703); two blocks (706) are fixedly connected to the inner wall of the fourth joint (701); a third circular plate (707) is fixedly connected to the inner wall of the fourth joint (701); a sealing opening (708) is provided in the middle of the third circular plate (707); a sealing ball (709) is engaged with the inner wall of the sealing opening (708); and two elastic ropes (710) are fixedly connected between the inner wall of the fourth joint (701) and the sealing ball (709).

2. The exhaust gas sampling and detection equipment according to claim 1, characterized in that: A fixing frame (801), a sponge block (802) and a filter screen (803) are fixedly connected to the inner wall of the conical sleeve (306); the fixing frame (801) and the filter screen (803) are used to clamp the sponge block (802); the sponge block (802) is used to filter moisture in the exhaust gas; and the filter screen (803) is used to filter dust in the exhaust gas.

3. The exhaust gas sampling and detection equipment according to claim 2, characterized in that: A rectangular shell (804) is fixedly connected to the top of the box body (103), a second motor (805) is fixedly connected to the inner top wall of the rectangular shell (804), an output end of the second motor (805) is fixedly connected to a first connecting shaft (806), a plurality of first fan blades (807) are fixedly connected to the outer surface of the first connecting shaft (806), an air inlet (808) is provided on the rectangular shell (804), an L-shaped tube (809) is fixedly connected to the bottom end of the rectangular shell (804), the L-shaped tube (809) passes through the upper end of the box body (103), and a conduction component is provided at one end of the L-shaped tube (809), which is used to be connected to the topmost collection bottle (104) through the first connector (105).

4. The exhaust gas sampling and detection equipment according to claim 3 is characterized in that: A positioning plate (810) is fixedly connected to the inner wall of the conical sleeve (306); a second connecting shaft (811) is rotatably connected to one side of the positioning plate (810); a plurality of second fan blades (812) are fixedly connected to the outer surface of the second connecting shaft (811); a connecting plate (813) is fixedly connected to one end of the second connecting shaft (811); a scraper (814) is fixedly connected to one side of the connecting plate (813); and the scraper (814) is in contact with one side of the filter screen (803).

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