Waste gas volatile organic compound sampling and detecting device

Abstract

The utility model discloses a sampling and detecting device for volatile organic compounds in waste gas, which belongs to the technical field of sampling and detecting equipment and comprises a detecting device main body, and a clamping and supporting device for fixing the detecting device main body at a pipeline opening is mounted at the upper end of the right side of the detecting device main body. A position adjusting mechanism for adjusting a detection position is mounted in the detection device main body; the clamping and supporting device comprises a power assembly used for providing power and a supporting assembly used for supporting and fixing the detection device body. The position adjusting mechanism comprises a rotating assembly used for adjusting the detection direction and a moving assembly used for adjusting the detection position. By means of the mode, the detection device body is fixed to the sampling opening through the supporting assembly, continuous sampling is carried out without the help of external force, and sampling detection can be carried out on different positions in a pipeline through the rotating assembly and the moving assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling and detection equipment, in particular to a sampling and detection device for volatile organic compounds in waste gas. Background Art

[0002] Volatile organic compounds, as important precursors of ozone and secondary organic aerosols, play an extremely important role in atmospheric chemical reactions. At the same time, some volatile organic compounds are extremely harmful to human health. Therefore, it is very necessary to achieve accurate measurement of volatile organic compounds. The detection of environmentally friendly treatment of waste gas is generally carried out directly through monitoring instruments.

[0003] For example, Chinese patent CN221686286U discloses an analyzer for detecting volatile organic compounds, comprising a sampling unit, a gas flow unit, a detector, and a controller. Two pipelines in the sampling unit separate the air in an explosion-proof environment into two paths, which are then delivered to the detector as a combustion-supporting gas and a sample gas, respectively. This eliminates the need for an additional sampling pump, reducing both the analyzer's weight and power consumption.

[0004] However, this technology has the following problems: it cannot be supported on the outer wall of the pipe, so it is impossible to continuously sample and detect the exhaust gas inside the pipe.

[0005] Based on this, the utility model designs a sampling and detection device for volatile organic compounds in exhaust gas to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a sampling and detection device for volatile organic compounds in exhaust gas.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A device for sampling and detecting volatile organic compounds in exhaust gas, comprising a detection device body, a clamping support device for fixing the detection device body to a pipe opening being installed at the upper right end of the detection device body, and a position adjustment mechanism for adjusting the detection position being installed inside the detection device body;

[0009] The clamping support device includes a power component for providing power and a support component for supporting and fixing the main body of the detection device. The right side of the power component is connected to the support component. The power component and the support component are both installed at the upper end of the main body of the detection device;

[0010] The position adjustment mechanism includes a rotating component for adjusting the detection direction and a moving component for adjusting the detection position. The rotating component is connected to the moving component, and both the rotating component and the moving component are installed inside the detection device body.

[0011] Furthermore, the main body of the detection device includes a gun head, a gun body, an air pump, a detection head and a detection chamber. The gun head is fixedly installed on the upper right side of the gun body, the air pump is fixedly installed inside the gun body, the detection chamber is opened at the lower end of the gun body, the lower end of the air pump is connected to the detection chamber, the upper end of the air pump is connected to the rotating assembly, and the detection head is connected to the rotating assembly.

[0012] Furthermore, the gun head is connected to the power component, the support component, the rotation component, and the moving component.

[0013] Furthermore, the power assembly includes a first electric cylinder, a slip ring, a support rod and a slide groove. The first electric cylinder is fixedly installed on the upper left end of the gun head. The slip ring is slidably connected to the middle side wall of the gun head. Multiple support rods are evenly spaced and fixedly installed on the outer wall of the slip ring. The output end of the first electric cylinder is fixedly connected to the left side of one of the support rods. A slide groove is provided in the middle of each of the multiple support rods, and the slide groove is connected to the support assembly.

[0014] Furthermore, the support assembly includes a fixed sleeve, a protrusion, a first connecting rod, a second connecting rod and a support plate. The fixed sleeve is fixedly installed on the right side wall of the gun head. The protrusions are provided at equal intervals and are all fixedly installed on the outer side wall of the fixed sleeve. One end of the first connecting rod and the second connecting rod are respectively hinged to the left and right sides of the protrusion, and the other ends of the first connecting rod and the second connecting rod are respectively hinged to the left and right sides of the lower end of the support plate. The first connecting rod and the second connecting rod are provided at equal intervals and arranged on the outer side wall of the fixed sleeve. The left side of the support plate is slidably connected to the slide groove.

[0015] Furthermore, the rotating assembly includes a motor, a connecting tube, a limiting groove, a detection tube, a limiting block, a connecting tube and a ring sleeve. The motor is fixedly installed on the left side of the inside of the gun head, the output end of the motor is fixedly connected to the left side of the connecting tube, a limiting groove is provided inside the connecting tube, the detection tube is located inside the connecting tube and is slidingly connected to the connecting tube, the limiting block is fixedly installed on the side wall of the detection tube, the limiting groove and the limiting block are slidingly connected, the right end of the detection tube is fixedly connected to the detection head, the ring sleeve is fixedly installed on the left side of the inside of the gun head, and the ring sleeve is slidingly connected to the outer wall of the connecting tube, the upper end of the connecting tube is communicated with the ring sleeve, the lower end of the connecting tube is connected to the air pump, and the connecting tube is provided with a through hole at the position of the ring sleeve.

[0016] Furthermore, the detection tube is connected to the moving component.

[0017] Furthermore, the moving assembly includes a second electric cylinder, a sliding sleeve, a first fixed sleeve and a second fixed sleeve. The second electric cylinder is fixedly installed on the inner top of the gun head. The output end of the second electric cylinder is fixedly connected to the sliding sleeve. The sliding sleeve is slidably connected to the outer wall of the detection tube. The sliding sleeve is located between the first fixed sleeve and the second fixed sleeve. The first fixed sleeve is located on the left side of the second fixed sleeve. The first fixed sleeve and the second fixed sleeve are both fixedly installed on the outer wall of the detection tube.

[0018] Compared with the prior art, the present invention has the following beneficial effects: when in use, the detection device body is inserted into the sampling port of the pipeline, the power assembly drives the support assembly to fit tightly with the sampling port, so that the detection device body is fixed at the sampling port, the detection device body samples the exhaust gas inside the pipeline, and the rotating assembly and the moving assembly drive the detection device body to perform sampling and detection at different positions inside the pipeline;

[0019] The utility model fixes the detection device body at the sampling port through the support component, performs continuous sampling without the aid of external force, and can perform sampling and detection at different positions inside the pipeline by rotating and moving the component. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0021] Figure 1 This is a three-dimensional sampling and detection device for volatile organic compounds in exhaust gas. Figure 1 ;

[0022] Figure 2 This is a front view of an exhaust gas volatile organic compound sampling and detection device of the present utility model;

[0023] Figure 3 This is a right side view of an exhaust gas volatile organic compound sampling and detection device according to the present utility model;

[0024] Figure 4 This is a three-dimensional sampling and detection device for volatile organic compounds in exhaust gas. Figure 2 ;

[0025] Figure 5 This is a three-dimensional sampling and detection device for volatile organic compounds in exhaust gas. Figure 3 ;

[0026] Figure 6 To follow Figure 3 AA direction cross-sectional view;

[0027] Figure 7 To follow Figure 3 BB direction cross-sectional view;

[0028] Figure 8 for Figure 7 Enlarged view of point C in the middle.

[0029] The numbers in the figure represent:

[0030] 1. Detection device body; 11. Gun head; 12. Gun body; 13. Air pump; 14. Detection head; 15. Detection chamber; 2. Clamping support device; 21. Power assembly; 211. First electric cylinder; 212. Slip ring; 213. Support rod; 214. Slide groove; 22. Support assembly; 221. Fixed sleeve; 222. Raised strip; 223. First connecting rod; 224. Second connecting rod; 225. Support plate; 3. Position adjustment mechanism; 31. Rotating assembly; 311. Motor; 312. Connecting tube; 313. Limiting groove; 314. Detection tube; 315. Limiting block; 316. Connecting tube; 317. Ring sleeve; 32. Moving assembly; 321. Second electric cylinder; 322. Slide sleeve; 323. First fixed sleeve; 324. Second fixed sleeve. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0032] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0033] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figures 1-8 A device for sampling and detecting volatile organic compounds in exhaust gas comprises a detection device body 1, a clamping support device 2 for fixing the detection device body 1 to a pipe opening is installed at the upper right end of the detection device body 1, and a position adjustment mechanism 3 for adjusting the detection position is installed inside the detection device body 1;

[0034] The clamping support device 2 includes a power component 21 for providing power and a support component 22 for supporting and fixing the detection device body 1. The right side of the power component 21 is connected to the support component 22. The power component 21 and the support component 22 are both installed at the upper end of the detection device body 1;

[0035] The position adjustment mechanism 3 includes a rotating assembly 31 for adjusting the detection direction and a moving assembly 32 for adjusting the detection position. The rotating assembly 31 is connected to the moving assembly 32 , and both the rotating assembly 31 and the moving assembly 32 are installed inside the detection device body 1 .

[0036] When the present invention is in use, the detection device body 1 is inserted into the sampling port of the pipeline, the power component 21 drives the support component 22 to fit closely with the sampling port, so that the detection device body 1 is fixed at the sampling port, and the detection device body 1 samples the exhaust gas inside the pipeline. The rotating component 31 and the moving component 32 drive the detection device body 1 to perform sampling and detection at different positions inside the pipeline;

[0037] The present invention fixes the detection device body 1 at the sampling port through the support component 22, performs continuous sampling without the aid of external force, and can perform sampling and detection at different positions inside the pipeline through the rotating component 31 and the moving component 32.

[0038] Embodiment 2: In some embodiments, as Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, as a preferred embodiment of the present utility model, the detection device body 1 includes a gun head 11, a gun body 12, an air pump 13, a detection head 14 and a detection chamber 15. The gun head 11 is fixedly installed on the right side of the upper end of the gun body 12, the air pump 13 is fixedly installed inside the gun body 12, the detection chamber 15 is opened at the lower end of the inner part of the gun body 12, the lower end of the air pump 13 is connected to the detection chamber 15, the upper end of the air pump 13 is connected to the rotating component 31, and the detection head 14 is connected to the rotating component 31.

[0039] The gun head 11 is connected to the power assembly 21 , the support assembly 22 , the rotating assembly 31 , and the moving assembly 32 .

[0040] The power assembly 21 includes a first electric cylinder 211, a slip ring 212, a support rod 213 and a slide groove 214. The first electric cylinder 211 is fixedly installed on the upper left end of the gun head 11. The slip ring 212 is slidingly connected to the middle side wall of the gun head 11. A plurality of support rods 213 are evenly spaced and fixedly installed on the outer wall of the slip ring 212. The output end of the first electric cylinder 211 is fixedly connected to the left side of one of the support rods 213. A slide groove 214 is provided in the middle of the plurality of support rods 213, and the slide groove 214 is connected to the support assembly 22.

[0041] The support assembly 22 includes a fixed sleeve 221, a protrusion 222, a first connecting rod 223, a second connecting rod 224 and a support plate 225. The fixed sleeve 221 is fixedly installed on the right side wall of the gun head 11. The protrusions 222 are provided in multiples at equal intervals and are all fixedly installed on the outer side wall of the fixed sleeve 221. One end of the first connecting rod 223 and the second connecting rod 224 are respectively hinged to the left and right sides of the protrusion 222, and the other ends of the first connecting rod 223 and the second connecting rod 224 are respectively hinged to the left and right sides of the lower end of the support plate 225. The first connecting rod 223 and the second connecting rod 224 are provided in multiples at equal intervals and arranged on the outer side wall of the fixed sleeve 221. The left side of the support plate 225 is slidably connected to the slide groove 214.

[0042] When the present utility model is in use, the staff places the gun head 11 at the sampling port, the first electric cylinder 211 is started, and the output end of the first electric cylinder 211 drives the support rod 213 to move to the right, and the support rod 213 drives the slip ring 212 to move to the right, and the slip ring 212 drives multiple support rods 213 to move to the right, and multiple support rods 213 drive multiple support plates 225 to move to the right. Under the action of the first connecting rod 223 and the second connecting rod 224, the multiple support plates 225 expand from the center to the surrounding areas, and the multiple support plates 225 are tightly fitted with the sampling port, thereby realizing the function of fixing the gun head 11 at the sampling port. After the gun head 11 is fixed, the worker seals the sampling port, and then the detection head 14 performs exhaust gas sampling.

[0043] Embodiment 3: In some embodiments, as Figure 6 、 Figure 7 and Figure 8As shown, as a preferred embodiment of the present invention, the rotating assembly 31 includes a motor 311, a connecting tube 312, a limiting groove 313, a detection tube 314, a limiting block 315, a connecting tube 316 and a ring sleeve 317. The motor 311 is fixedly installed on the left side of the inside of the gun head 11, and the output end of the motor 311 is fixedly connected to the left side of the connecting tube 312. The limiting groove 313 is provided inside the connecting tube 312. The detection tube 314 is located inside the connecting tube 312 and slides with the connecting tube 312. Connection, the limit block 315 is fixedly installed on the side wall of the detection tube 314, the limit groove 313 is connected to the limit block 315 in a limiting sliding manner, the right end of the detection tube 314 is fixedly connected to the detection head 14, the ring sleeve 317 is fixedly installed on the inner left side of the gun head 11, and the ring sleeve 317 is fitted and slidably connected to the outer wall of the connecting tube 312, the upper end of the connecting tube 316 is connected to the ring sleeve 317, and the lower end of the connecting tube 316 is connected to the air pump 13, and the connecting tube 312 is provided with a through hole at the position of the ring sleeve 317.

[0044] The detection tube 314 is connected to the moving component 32 .

[0045] The moving assembly 32 includes a second electric cylinder 321, a sliding sleeve 322, a first fixed sleeve 323 and a second fixed sleeve 324. The second electric cylinder 321 is fixedly installed on the inner top of the gun head 11. The output end of the second electric cylinder 321 is fixedly connected to the sliding sleeve 322. The sliding sleeve 322 is slidably connected to the outer wall of the detection tube 314. The sliding sleeve 322 is located between the first fixed sleeve 323 and the second fixed sleeve 324. The first fixed sleeve 323 is located on the left side of the second fixed sleeve 324. The first fixed sleeve 323 and the second fixed sleeve 324 are both fixedly installed on the outer wall of the detection tube 314.

[0046] When the present invention is used, after the gun head 11 is installed and fixed, the detection head 14 detects the exhaust gas inside the pipe, the motor 311 is started, the motor 311 drives the connecting tube 312 to rotate, the limiting groove 313 rotates accordingly, the limiting groove 313 drives the limiting block 315 to rotate, the limiting block 315 drives the detection tube 314 to rotate together, and the detection tube 314 drives the detection head 14 to rotate, thereby detecting exhaust gas in different directions;

[0047] The second electric cylinder 321 is activated, driving the sliding sleeve 322 to move. The sliding sleeve 322 contacts the second fixed sleeve 324 and pushes the second fixed sleeve 324 to move to the right. The second fixed sleeve 324 drives the detection tube 314 to move. The detection tube 314 drives the detection head 14 to move to the right, thereby detecting exhaust gas at different locations.

[0048] When the second electric cylinder 321 is reset, the second electric cylinder 321 drives the sliding sleeve 322 to move to the left. The sliding sleeve 322 contacts the first fixed sleeve 323 and drives the first fixed sleeve 323 to move to the left. The first fixed sleeve 323 drives the detection tube 314 to move to the left. The detection tube 314 drives the detection head 14 to move to the left, thereby achieving horizontal movement of the detection head 14.

[0049] The detection head 14 collects the exhaust gas sample, and the air pump 13 is started to suck the exhaust gas into the detection chamber 15 through the detection head 14, the detection tube 314, the through hole on the connecting tube 312, the ring sleeve 317 and the connecting tube 316. The detection chamber 15 is provided with an FID detector to detect the exhaust gas.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A sampling and detection device for volatile organic compounds in exhaust gas, comprising a detection device body (1), characterized in that: A clamping support device (2) for fixing the detection device body (1) at the pipe opening is installed at the upper right end of the detection device body (1), and a position adjustment mechanism (3) for adjusting the detection position is installed inside the detection device body (1); The clamping support device (2) comprises a power assembly (21) for providing power and a support assembly (22) for supporting and fixing the detection device body (1); the right side of the power assembly (21) is connected to the support assembly (22); and the power assembly (21) and the support assembly (22) are both mounted on the upper end of the detection device body (1); The position adjustment mechanism (3) comprises a rotating assembly (31) for adjusting the detection direction and a moving assembly (32) for adjusting the detection position. The rotating assembly (31) is connected to the moving assembly (32). Both the rotating assembly (31) and the moving assembly (32) are installed inside the detection device body (1).

2. The exhaust gas volatile organic compound sampling and detection device according to claim 1, characterized in that: The detection device body (1) comprises a gun head (11), a gun body (12), an air pump (13), a detection head (14) and a detection chamber (15); the gun head (11) is fixedly mounted on the right side of the upper end of the gun body (12); the air pump (13) is fixedly mounted inside the gun body (12); the detection chamber (15) is opened at the lower end of the gun body (12); the lower end of the air pump (13) is communicated with the detection chamber (15); the upper end of the air pump (13) is connected to the rotating assembly (31); and the detection head (14) is connected to the rotating assembly (31).

3. The exhaust gas volatile organic compound sampling and detection device according to claim 2, characterized in that: The gun head (11) is connected to the power component (21), the support component (22), the rotation component (31), and the moving component (32).

4. The exhaust gas volatile organic compound sampling and detection device according to claim 3, characterized in that: The power assembly (21) comprises a first electric cylinder (211), a slip ring (212), a support rod (213) and a slide groove (214); the first electric cylinder (211) is fixedly mounted on the upper left end of the gun head (11); the slip ring (212) is slidably connected to the middle side wall of the gun head (11); a plurality of support rods (213) are provided at equal intervals and are all fixedly mounted on the outer side wall of the slip ring (212); the output end of the first electric cylinder (211) is fixedly connected to the left side of one of the support rods (213); a slide groove (214) is provided in the middle of the plurality of support rods (213); and the slide groove (214) is connected to the support assembly (22).

5. The exhaust gas volatile organic compound sampling and detection device according to claim 4, characterized in that: The support assembly (22) includes a fixed sleeve (221), a convex strip (222), a first connecting rod (223), a second connecting rod (224) and a support plate (225). The fixed sleeve (221) is fixedly installed on the right side wall of the gun head (11). The convex strips (222) are provided at equal intervals and are fixedly installed on the outer side wall of the fixed sleeve (221). One end of the first connecting rod (223) and the second connecting rod (224) are respectively hinged to the left and right sides of the convex strip (222). The other ends of the first connecting rod (223) and the second connecting rod (224) are respectively hinged to the left and right sides of the lower end of the support plate (225). The first connecting rod (223) and the second connecting rod (224) are provided at equal intervals and are arranged on the outer side wall of the fixed sleeve (221). The left side of the support plate (225) is slidably connected to the slide groove (214).

6. The exhaust gas volatile organic compound sampling and detection device according to claim 5, characterized in that: The rotating assembly (31) comprises a motor (311), a connecting tube (312), a limiting groove (313), a detection tube (314), a limiting block (315), a connecting tube (316) and a ring sleeve (317). The motor (311) is fixedly installed on the left side of the inside of the gun head (11). The output end of the motor (311) is fixedly connected to the left side of the connecting tube (312). The connecting tube (312) is provided with a limiting groove (313). The detection tube (314) is located inside the connecting tube (312) and is slidably connected to the connecting tube (312). The limiting block (315) is fixedly connected to the left side of the connecting tube (312). 15) is fixedly installed on the side wall of the detection tube (314), the limiting groove (313) and the limiting block (315) are slidingly connected, the right end of the detection tube (314) is fixedly connected to the detection head (14), the ring sleeve (317) is fixedly installed on the inner left side of the gun head (11), and the ring sleeve (317) is slidingly connected to the outer side wall of the connecting tube (312), the upper end of the connecting tube (316) is connected to the ring sleeve (317), the lower end of the connecting tube (316) is connected to the air pump (13), and the connecting tube (312) is provided with a through hole at the position of the ring sleeve (317).

7. The exhaust gas volatile organic compound sampling and detection device according to claim 6, characterized in that: The detection tube (314) is connected to the moving component (32).

8. The exhaust gas volatile organic compound sampling and detection device according to claim 7, characterized in that: The moving assembly (32) comprises a second electric cylinder (321), a sliding sleeve (322), a first fixed sleeve (323) and a second fixed sleeve (324); the second electric cylinder (321) is fixedly mounted on the inner top of the gun head (11); the output end of the second electric cylinder (321) is fixedly connected to the sliding sleeve (322); the sliding sleeve (322) is slidably connected to the outer wall of the detection tube (314); the sliding sleeve (322) is located between the first fixed sleeve (323) and the second fixed sleeve (324); the first fixed sleeve (323) is located on the left side of the second fixed sleeve (324); and the first fixed sleeve (323) and the second fixed sleeve (324) are both fixedly mounted on the outer wall of the detection tube (314).

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