Collection device for environmental waste gas detection
By designing a flue gas sampling gun and a positioning and sealing component, the problem of unstable fixing of the flue gas sampler to the measuring hole was solved, achieving vertical alignment of the sampling port and convenient removal, thus improving the accuracy of flue gas sampling and analysis.
Patent Information
- Application Number
- CN202423221778.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The existing flue gas sampler and the measuring hole cannot be effectively fixed, resulting in the sampling port being tilted and unable to be aligned with the flue gas flow direction, which affects the accuracy of the sampling concentration. In addition, the gap between the measuring hole and the flue gas sampler allows air to enter the flue, affecting the accuracy of the analysis.
A sampling device including a dust sampling gun and a positioning and sealing component was designed. The sampling hole is sealed and fixed by a conical plug and a self-locking unit to ensure that the dust sampling gun is horizontally distributed and the sampling port is vertically downward. It can be easily removed by pulling the rope to unlock.
This improved the accuracy of flue gas sampling, prevented external air from entering the flue, ensured that the sampling port was directly facing the flue gas flow direction, and improved the accuracy of sampling concentration and the reliability of detection.
Smart Images
Figure CN223692108U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to waste gas detection collection technical field, concretely is a kind of collection device for environmental waste gas detection. BACKGROUND
[0002] With the continuous acceleration of human industrialization process, industrial pollution has more and more affected people's daily life, as one of industrial pollution, air pollution, which is mainly generated by energy, chemical, recycling and other factory enterprises discharging smoke waste gas, in order to effectively detect which kind of pollutant discharged by enterprises and the concentration of corresponding pollutant, the discharged flue gas needs to be sampled and analyzed.
[0003] The existing flue gas sampling method is to open a measuring hole outside the flue or furnace wall, and the flue gas sampler is inserted into the measuring hole for sampling, usually the hole diameter is larger than the outer diameter of the flue gas sampler, which causes the flue gas sampler and the measuring hole cannot be effectively fixed, so that the sampling port is inclined when the sampler is placed, and cannot be perpendicular to the flue gas flow direction, which leads to the situation that the analyzed flue gas pollutant concentration is not accurate, and the inaccurate sampling concentration will directly affect the index of the enterprise discharging outside, and the gap between the measuring hole and the flue gas sampler also easily leads to air entering the flue or furnace wall inside, which affects the accuracy of waste gas composition analysis, based on this, a collection device for environmental waste gas detection is provided. SUMMARY
[0004] The utility model aims at: in order to solve the problem in the above background, provide a kind of collection device for environmental waste gas detection.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of collection device for environmental waste gas detection, including smoke dust sampling gun, the outer side of the sampling gun pipe of smoke dust sampling gun is integrally formed with external thread, the smoke dust sampling gun is connected with the positioning plugging assembly by external thread screw thread, the positioning plugging assembly includes plugging unit, self-locking unit, unlocking unit;The plugging unit is used to realize the plugging operation of measuring hole;The self-locking unit is used to realize the locking of plugging unit and measuring hole, so as to realize the limit of the horizontal distribution state of smoke dust sampling gun;The unlocking unit is used to release the locking state of self-locking unit, for realizing the taking-out operation of smoke dust sampling gun.
[0006] As a further scheme of the utility model: the plugging unit includes a tapered plug; the tapered plug is connected to the outer side of the smoke sampling gun through external threads, the outer wall diameter of the tapered plug close to the front end of the sampling gun tube of the smoke sampling gun is smaller than the inner diameter of the measuring hole, the outer wall diameter of the tapered plug away from the front end of the sampling gun tube of the smoke sampling gun is larger than the diameter of the measuring hole, and the tapered plug is inserted into the measuring hole to realize plugging of the measuring hole; the tapered plug is adjusted along the outer wall of the smoke sampling gun horizontally to realize length adjustment of the smoke sampling gun inserted into the flue.
[0007] As a further scheme of the utility model: the self-locking unit includes a tapered cavity, a vertical sliding groove, an inclined block and a vertical clamping block; the tapered cavity is formed in the inside of the tapered plug, the vertical sliding groove is arranged on the outside of the tapered plug and communicates with the tapered cavity, and a plurality of vertical sliding grooves are evenly arranged along the inclined outer wall of the tapered plug; the inclined block is attached to the inner wall side of the tapered cavity, the vertical clamping block is fixed to the outside of the inclined block and protrudes from the outside of the tapered plug through the vertical sliding groove, the number of the vertical clamping blocks matches the number of the vertical sliding grooves, and the end face of the vertical clamping block close to the front end of the tapered plug is in an arc surface structure; when the tapered plug is inserted into the measuring hole, two adjacent vertical clamping blocks are attached to the inner and outer surfaces of the flue respectively to realize position fixation of the tapered plug and the measuring hole.
[0008] As a further scheme of the utility model: the self-locking unit includes an inclined guide groove, a side-inverted extruded cylinder, a connecting arm, a linkage sliding column, a spring and a pull rope; the inclined guide groove is arranged on one side of the inclined block and penetrates through the other side of the inclined block completely; the side-inverted extruded cylinder is sleeved on the outside of the inner ring of the tapered cavity, the connecting arms are fixed to the outside of the large-diameter part of the side-inverted extruded cylinder in pairs, two connecting arms extend to the both sides of the outer wall of the inclined block, the linkage sliding column is fixed to the middle of the two connecting arms and is in sliding connection with the inclined guide groove, the spring is sleeved on the outside of the small-diameter part of the side-inverted extruded cylinder, and the both ends of the spring are attached to the end face of the large-diameter part of the side-inverted extruded cylinder and the end face of the inner wall of the vertical sliding groove respectively to provide a pushing force for the side-inverted extruded cylinder towards the front end of the tapered plug; the small-diameter part of the side-inverted extruded cylinder extends through the rear end of the tapered plug, the pull rope is fixedly attached to the outside of the side-inverted extruded cylinder, and the pull rope extends to the rear end of the smoke sampling gun.
[0009] As a further scheme of the utility model: the vertical sliding grooves, the inclined blocks, the vertical clamping blocks and the connecting arms are evenly distributed in multiple groups around the center line of the tapered plug.
[0010] Compared with the prior art, the utility model has the advantages of:
[0011] The positioning and plugging assembly can realize the plugging of the measuring hole, avoid the external air from entering the flue, and make the adjacent two vertical clamping blocks adhere to the inner and outer sides of the flue, so that the conical plug and the smoke dust sampling gun are kept in a horizontal state, the sampling port is kept in a vertical downward state, and the sampling port is opposite to the flue gas flow direction, thereby ensuring the accuracy of sampling and detection. BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 It is a structure schematic view of the utility model;
[0013] Fig. 2 It is another perspective structure schematic view of the utility model;
[0014] Fig. 3 It is a split schematic view of the positioning and plugging assembly and the dust sampling gun of the utility model;
[0015] Fig. 4 It is a structure sectional view of the positioning and plugging assembly of the utility model;
[0016] Fig. 5 It is a split sectional view of the positioning and plugging assembly of the utility model.
[0017] In the drawing: 1, the smoke dust sampling gun; 2, the external thread; 3, the positioning and plugging assembly; 301, the conical plug; 302, the conical cavity; 303, the vertical sliding slot; 304, the inclined block; 305, the vertical clamping block; 306, the inclined guide slot; 307, the side inverted convex cylinder; 308, the connecting arm; 309, the linkage sliding column; 310, the spring; 311, the pull rope; 4, the sampling port. DETAILED DESCRIPTION
[0018] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0019] Please refer to Figs. 1-5 In the embodiments of the utility model, a collecting device for environmental waste gas detection includes a smoke dust sampling gun 1, an external thread 2 is integrally formed on the outer side of the sampling gun pipe of the smoke dust sampling gun 1, the smoke dust sampling gun 1 is threadedly connected with a positioning and plugging assembly 3 through the external thread 2, and the positioning and plugging assembly 3 includes a plugging unit, a self-locking unit and an unlocking unit. The plugging unit is used for realizing the plugging operation of the measuring hole. The self-locking unit is used for realizing the locking of the plugging unit and the measuring hole, so as to realize the limiting of the horizontal distribution state of the smoke dust sampling gun 1.
[0020] The unlocking unit is used to release the locking state of the self-locking unit, so as to realize the taking-out operation of the smoke sampling gun 1; the plugging unit comprises a tapered plug 301; the tapered plug 301 is threadedly connected to the outer side of the smoke sampling gun 1 through the outer thread 2, the outer wall diameter of the tapered plug 301 close to the front end of the sampling gun barrel of the smoke sampling gun 1 is smaller than the inner diameter of the measuring hole, the outer wall diameter of the tapered plug 301 away from the front end of the sampling gun barrel of the smoke sampling gun 1 is larger than the diameter of the measuring hole, and the tapered plug 301 is inserted into the measuring hole to realize the plugging of the measuring hole; the tapered plug 301 is adjusted along the outer wall of the smoke sampling gun 1 horizontally, so as to realize the length adjustment of the smoke sampling gun 1 inserted into the flue.
[0021] The self-locking unit comprises a tapered cavity 302, a vertical sliding groove 303, an inclined block 304 and a vertical clamping block 305; the tapered cavity 302 is formed in the inside of the tapered plug 301, the vertical sliding groove 303 is arranged on the outside of the tapered plug 301 and communicates with the tapered cavity 302, and a plurality of vertical sliding grooves 303 are uniformly arranged along the inclined outer wall of the tapered plug 301; the inclined block 304 is attached to the inner wall side of the tapered cavity 302, the vertical clamping block 305 is fixed to the outside of the inclined block 304 and protrudes from the outside of the tapered plug 301 through the vertical sliding groove 303, the number of the vertical clamping blocks 305 matches the number of the vertical sliding grooves 303, and the end face of the vertical clamping block 305 close to the front end of the tapered plug 301 is in an arc surface structure; when the tapered plug 301 is inserted into the measuring hole, the two adjacent vertical clamping blocks 305 are respectively attached to the inner and outer surfaces of the flue, so as to realize the position fixation of the tapered plug 301 and the measuring hole.
[0022] The self-locking unit comprises an inclined guide groove 306, a side-inverted extruded cylinder 307, a connecting arm 308, a linkage sliding column 309, a spring 310 and a pull rope 311; the inclined guide groove 306 is arranged on one side of the inclined block 304 and completely penetrates to the other side of the inclined block 304; the side-inverted extruded cylinder 307 is sleeved on the outside of the inner ring of the tapered cavity 302, the connecting arms 308 are fixed in pairs on the outside of the large-diameter part of the side-inverted extruded cylinder 307, and the two connecting arms 308 extend to the both sides of the outer wall of the inclined block 304; the linkage sliding column 309 is fixed in the middle of the two connecting arms 308 and is in sliding connection with the inclined guide groove 306; the spring 310 is sleeved on the outside of the small-diameter part of the side-inverted extruded cylinder 307, and the two ends of the spring 310 are respectively attached to the end face of the large-diameter part of the side-inverted extruded cylinder 307 and the inner wall end face of the vertical sliding groove 303, so as to provide a pushing force for the side-inverted extruded cylinder 307 towards the front end of the tapered plug 301; the small-diameter part of the side-inverted extruded cylinder 307 extends to the rear end outside of the tapered plug 301, and the pull rope 311 is fixedly attached to the outside of the side-inverted extruded cylinder 307 and extends to the rear end of the smoke sampling gun 1.
[0023] In the present embodiment: it needs to be pointed out that the front end of the smoke sampling gun 1 is also provided with a sampling port 4, after the tapered plug 301 is sleeved on the outside of the smoke sampling gun 1 and is screw-connected with the external thread 2, then the sampling port 4 is installed with the front end of the smoke sampling gun 1, the smoke sampling gun 1 is a common heating type low concentration smoke sampling gun on the market, the installation structure of the sampling port 4 and the front end of the smoke sampling gun 1 is the same as that of the existing heating type low concentration smoke sampling gun, and the sampling principle of the smoke sampling gun 1 is the same as that of the common heating type low concentration smoke sampling gun on the market, therefore, the sampling principle of the smoke sampling gun 1 is not described here.
[0024] When the smoke sampling gun 1 is used, the position of the tapered plug 301 can be adjusted according to the depth of the sampling port 4 inserted into the flue, by rotating the tapered plug 301, under the cooperation of the external thread 2 (it needs to be pointed out that the tapered plug 301 is formed with an internal thread hole matched with the external thread 2), the horizontal movement adjustment of the tapered plug 301 can be realized, when the distance between the tapered plug 301 and the sampling port 4 is close to the distance from the outer wall of the flue to the center of the flue, it can be stopped, in this way, when the sampling port 4 is inserted into the flue, the sampling port 4 can be close to the center of the flue.
[0025] During the process of inserting the sampling port 4 into the inside of the flue, the tapered plug 301 is synchronously close to the measuring hole and is inserted into the inside of the measuring hole, finally, the tapered plug 301 completely blocks the measuring hole (it needs to be pointed out that the tapered plug 301 with a tapered shape is used to block the measuring hole with different diameters), at the same time, when the tapered plug 301 is inserted into the inside of the measuring hole, the arc surface of the vertical clamping block 305 will contact with the inner wall of the measuring hole, at this time, the vertical clamping block 305 is extruded and shrunk, the inclined block 304 and the multiple vertical clamping blocks 304 connected with the inclined block 305 are synchronously shrunk, the inclined block 304 gives an extrusion force to the linkage sliding column 309 through the inclined guide slot 306, the extrusion force can make the linkage sliding column 309, the connecting arm 308 and the side inverted convex cylinder 307 move as a whole to the rear end of the tapered plug 301, and extrude the spring 310 to further shrink, when the inner wall of the measuring hole is located at the middle position of the two vertical clamping blocks 305, the vertical clamping block 305 loses the external extrusion, the spring 310 pushes the linkage sliding column 309, the connecting arm 308 and the side inverted convex cylinder 307 as a whole to reset, the inclined block 304 and the vertical clamping block 305 reset, the two vertical clamping blocks 305 are protrudingly attached to the inside and outside of the flue (it needs to be pointed out that the distance between the two adjacent vertical clamping blocks 305 is matched with the wall thickness of the flue, different types of positioning and blocking assemblies 3 can be set according to the flues with different wall thicknesses), in this way, the tapered plug 301 can be distributed in a horizontal state in the measuring hole, which can make the smoke sampling gun 1 keep in a horizontal state, the port of the sampling port 4 keeps in a vertical downward state, and is opposite to the flow direction of the flue gas, so as to ensure the accuracy of the sampling detection.
[0026] When the sampling is completed, the pull rope 311 is manually pulled to move the linkage slide column 309, the connecting arm 308 and the side-inverted convex cylinder 307 as a whole backward, at this time, the inclined blocks 304 and the vertical clamping blocks 305 are driven to retract, so that the locking with the flue is released, and the smoke dust sampling gun 1 can be easily taken out.
[0027] Please refer to Figs. 1-5 The vertical sliding grooves 303, the inclined blocks 304, the vertical clamping blocks 305 and the connecting arms 308 are uniformly distributed in multiple groups around the center line of the tapered plug 301.
[0028] In the embodiment, when the side-inverted convex cylinder moves horizontally, the multiple groups of inclined blocks 304 and vertical clamping blocks 305 can be driven to retract or expand synchronously through the multiple groups of vertically sliding grooves 303, inclined blocks 304, vertical clamping blocks 305 and connecting arms 308, so that the flue can be conveniently unlocked or locked, and the operation is simple and convenient.
[0029] The above describes only the preferred specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A collecting device for environmental exhaust gas detection, comprising a soot sampling gun (1), characterized in that, The smoke sampling gun (1) is integrally formed with external threads (2) on the outer side of the sampling gun tube, the smoke sampling gun (1) is threadedly connected with a positioning and blocking assembly (3) through the external threads (2), the positioning and blocking assembly (3) comprises a blocking unit, a self-locking unit and an unlocking unit; the blocking unit is used for realizing the blocking operation of the measuring hole; the self-locking unit is used for realizing the locking of the blocking unit and the measuring hole, so as to realize the limiting of the horizontal distribution state of the smoke sampling gun (1); the unlocking unit is used for releasing the locking state of the self-locking unit, and is used for realizing the taking-out operation of the smoke sampling gun (1).
2. The collection device for environmental exhaust gas detection according to claim 1, characterized in that, The blocking unit comprises a tapered plug (301); the tapered plug (301) is threadedly connected to the outer side of the smoke sampling gun (1) through the external threads (2), the outer wall diameter of the tapered plug (301) close to the front end of the sampling gun tube of the smoke sampling gun (1) is smaller than the inner diameter of the measuring hole, the outer wall diameter of the tapered plug (301) away from the front end of the sampling gun tube of the smoke sampling gun (1) is greater than the diameter of the measuring hole, and the tapered plug (301) is inserted into the measuring hole to realize the blocking of the measuring hole; the tapered plug (301) is adjusted horizontally along the outer wall of the smoke sampling gun (1), and is used for realizing the length adjustment of the smoke sampling gun (1) inserted into the flue.
3. The collection device for environmental exhaust gas detection according to claim 2, characterized in that, The self-locking unit comprises a tapered cavity (302), a vertical sliding groove (303), an inclined block (304) and a vertical clamping block (305); the tapered cavity (302) is formed in the inside of the tapered plug (301), the vertical sliding groove (303) is arranged on the outside of the tapered plug (301) and communicates with the tapered cavity (302), and a plurality of vertical sliding grooves (303) are uniformly arranged along the inclined outer wall of the tapered plug (301); the inclined block (304) is attached to the inner wall side of the tapered cavity (302), the vertical clamping block (305) is fixed to the outside of the inclined block (304) and protrudes from the outside of the tapered plug (301) through the vertical sliding groove (303), the number of the vertical clamping blocks (305) matches the number of the vertical sliding grooves (303), and the end face of the vertical clamping block (305) close to the front end of the tapered plug (301) is in an arc surface structure; when the tapered plug (301) is inserted into the measuring hole, two adjacent vertical clamping blocks (305) are respectively attached to the inner and outer surfaces of the flue to realize the position fixation of the tapered plug (301) and the measuring hole.
4. The collection device for environmental exhaust gas detection according to claim 3, characterized in that, The self-locking unit comprises an inclined guide groove (306), a side inverted extruded cylinder (307), a connecting arm (308), a linkage slide column (309), a spring (310), and a pull rope (311); the inclined guide groove (306) is arranged on one side of the inclined block (304) and penetrates through to the other side of the inclined block (304); the side inverted extruded cylinder (307) is sleeved on the outer side of the inner ring of the conical cavity (302), the connecting arms (308) are fixed on the outer side of the large-diameter part of the side inverted extruded cylinder (307) in pairs, and the two connecting arms (308) extend to the two sides of the outer wall of the inclined block (304); the linkage slide column (309) is fixed in the middle of the two connecting arms (308) and is in sliding connection with the inclined guide groove (306); the spring (310) is sleeved on the outer side of the small-diameter part of the side inverted extruded cylinder (307), and the two ends of the spring (310) are respectively attached to the end face of the large-diameter part of the side inverted extruded cylinder (307) and the end face of the inner wall of the vertical sliding groove (303), so as to provide a pushing force for the side inverted extruded cylinder (307) towards the front end of the conical plug (301); the small-diameter part of the side inverted extruded cylinder (307) extends through to the outside of the rear end of the conical plug (301), the pull rope (311) is fixedly attached to the outer side of the side inverted extruded cylinder (307), and the pull rope (311) extends to the rear end of the smoke sampling gun (1).
5. The collection device for environmental exhaust gas detection according to claim 4, characterized in that, The vertical sliding groove (303), the inclined block (304), the vertical clamping block (305), and the connecting arm (308) are evenly distributed in multiple groups around the center line of the conical plug (301).