Portable sampling device for absorption liquid in waste gas of stationary pollution source

Abstract

The utility model discloses a portable stationary pollution source waste gas absorption liquid sampling device which comprises a fixed plate, a clamping groove is formed in the side face of the fixed plate, the fixed plate is rotationally connected with one end of a rotary drum, the rotary drum is fixedly connected with the side face of a limiting plate, a pull rod is arranged on the limiting plate, one end of the pull rod is fixedly connected with a movable plate, and the side face of the movable plate is fixedly connected with a clamping plate. A sampling cylinder is arranged on the outer side of the rotating cylinder, the outer side of the sampling cylinder is fixedly connected with a guide strip, the side face of the fixing plate is fixedly connected with a sealing ring, and a first through hole is formed in the side face of the sealing ring. Through the fixing plate, the clamping groove, the rotating cylinder, the pull rod, the movable plate, the clamping plate and the sampling cylinder, the problems that an existing sampling device is only provided with one sampling cylinder and can only collect once are solved, the actual using effect of the sampling device is enhanced, and through the rotating cylinder, the sampling cylinder, the guide strip, the threaded sleeve and the top plate, the sampling cylinder is convenient to disassemble, clean and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas sampling, in particular to a portable device for sampling absorption liquid in waste gas from fixed pollution sources. Background Art

[0002] Waste gas refers to toxic and harmful gases emitted by humans during production and daily life, especially from chemical plants, steel mills, pharmaceutical plants, coking plants, and oil refineries. These gases have a strong odor, seriously polluting the environment and affecting human health. Exhaust gas from stationary pollution sources often contains absorbed liquids, so waste gas testing requires the collection and sampling of the absorbed liquids.

[0003] In order to improve the practicality of the sampling device, most of the existing sampling devices are small in size and easy to carry, but this results in the sampling device only having one sampling tube. Since the exhaust gas from a fixed pollution source needs to be sampled multiple times at different positions and heights, the existing sampling device cannot effectively meet the multiple sampling requirements. In addition, after the sampling tube collects the exhaust gas, the particulate matter in the exhaust gas will adhere to the inner wall and is difficult to clean, which will affect the accuracy of the subsequent exhaust gas collection by the sampling tube. Utility Model Content

[0004] The purpose of the utility model is to provide a portable device for sampling absorption liquid in exhaust gas from fixed pollution sources, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable absorption liquid sampling device for exhaust gas from a fixed pollution source, comprising a fixed plate, a card slot is provided on the side of the fixed plate, the fixed plate is rotatably connected to one end of the rotating drum, the rotating drum is fixedly connected to the side of the limiting plate, a pull rod is provided on the limiting plate, one end of the pull rod is fixedly connected to the movable plate, the side of the movable plate is fixedly connected to the card plate, a spring is sleeved on the outside of the pull rod, a guide groove is provided on the outside of the rotating drum, a sampling cylinder is provided on the outside of the rotating drum, the outside of the sampling cylinder is fixedly connected to the guide bar, the side of the fixed plate is fixedly connected to the sealing ring, a through hole 1 is provided on the side of the sealing ring, the side of the fixed plate is fixedly connected to the sampling head, a through hole 2 is provided inside the sampling cylinder, a piston rod is provided inside the sampling cylinder, a threaded sleeve is provided on the outside of the rotating drum, and the side of the threaded sleeve is fixedly connected to the top plate.

[0006] Preferably, there are three card slots and three card plates, the card slots are evenly distributed around the center of the fixed plate, the angle between two adjacent card slots is 60 degrees, and the card slots are movably connected to the outer side of the card plate.

[0007] Preferably, the rotating drum is slidably connected to the outer side of the pull rod through a circular through hole, the outer side of the pull rod is fixedly connected to the slide plate, a sliding groove is provided on the side of the limiting plate, and the pull rod is slidably connected to the sliding groove in the limiting plate through the slide plate.

[0008] Preferably, the guide groove is in a dovetail shape, and the guide groove is slidably connected to the outer side of the guide bar.

[0009] Preferably, the sealing ring is made of rubber material, and the sealing ring is connected to the sampling head through through hole 1.

[0010] Preferably, one end of the piston rod is fixedly connected to the piston, and the interior of the sampling cylinder is slidably connected to the piston.

[0011] Preferably, a thread groove is provided on the inner wall of the threaded sleeve, a thread is provided on one end of the rotating cylinder, and the threaded sleeve is threadedly connected to the outer side of the rotating cylinder through the thread groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model sets a fixed plate, a card slot, a rotating drum, a pull rod, a movable plate, a card plate and a sampling drum, and evenly distributes the sampling drum on the outside of the rotating drum, so that the rotating drum drives the sampling drum to rotate to the sampling head for sampling and collection, thereby solving the problem that the existing sampling device has only one sampling drum and can only collect once, and enhances the actual use effect of the sampling device. The sampling drum can be switched by rotating the rotating drum, and the cooperation of the card plate and the card slot is utilized to effectively reduce the time for staff to switch the sampling drum.

[0014] 2. The present invention also provides a rotating drum, a guide groove, a sampling drum, a guide strip, a threaded sleeve and a top plate. By rotating the threaded sleeve to disengage from the outside of the rotating drum, the sampling drum can be pushed to move the guide strip inside the guide groove until the sampling drum is disengaged from the outside of the rotating drum, thereby facilitating the cleaning of the inner wall of the sampling drum and replacing a new sampling drum, thereby effectively enhancing the actual use effect of the sampling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the fixed plate structure of the present utility model;

[0017] Figure 3 This is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 4 This is a cross-sectional view of the internal structure of the drum of the present utility model;

[0019] Figure 5 This is a schematic diagram of the sampling tube structure of the present utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the groove sleeve and top plate of the utility model.

[0021] In the figure: 1. Fixed plate; 2. Card slot; 3. Rotating cylinder; 4. Limiting plate; 5. Pull rod; 6. Moving plate; 7. Card plate; 8. Spring; 9. Guide groove; 10. Sampling cylinder; 11. Guide strip; 12. Sealing ring; 13. Through hole 1; 14. Sampling head; 15. Through hole 2; 16. Piston rod; 17. Threaded sleeve; 18. Top plate. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-6 The utility model provides a technical solution: a portable fixed pollution source exhaust gas absorption liquid sampling device, including a fixed plate 1, a card slot 2 is provided on the side of the fixed plate 1, the card slot 2 and the card plate 7 are the same size and shape, the fixed plate 1 is rotatably connected to one end of the rotating drum 3, the rotating drum 3 is located at the center of the fixed plate 1, the card slot 2 is sleeved inside the rotating drum 3, the rotating drum 3 is welded and fixed to the side of the limiting plate 4, the limiting plate 4 is slidably connected to the outside of the pull rod 5, one end of the pull rod 5 extends to the outside of the rotating drum 3 and is fixed to the rotating plate, one end of the pull rod 5 is welded and fixed to the movable plate 6, the side of the movable plate 6 is welded and fixed to the card plate 7, a spring 8 is sleeved on the outside of the pull rod 5, and the spring 8 is located Between the limiting plate 4 and the movable plate 6, a guide groove 9 is provided on the outside of the rotating cylinder 3. The number of the guide grooves 9 is the same as that of the sampling cylinder 10. The outside of the sampling cylinder 10 is fixedly connected to the guide strip 11. The guide strip 11 is slidably connected to the guide groove 9. The side of the fixed plate 1 is welded and fixed to the sealing ring 12. A through hole 13 is provided on the side of the sealing ring 12. The side of the fixed plate 1 is welded and fixed to the sampling head 14. The sampling head 14 can select a pointed head or a flared head according to actual conditions. A through hole 2 15 is provided inside the sampling cylinder 10. The inside of the sampling cylinder 10 is slidably connected to the piston at one end of the piston rod 16. A threaded sleeve 17 is provided on the outside of the rotating cylinder 3. The side of the threaded sleeve 17 is welded and fixed to the top plate 18.

[0024] When the sampling tube 10 is sampled, the number of the card slots 2 and the card plate 7 are both three, and the card slots 2 are evenly distributed around the center of the fixed plate 1. The angle between two adjacent card slots 2 is 60 degrees. The fixed plate 1 and the rotating drum 3 can be connected and fixed by inserting the card plate 7 into the card slot 2 to prevent the sampling tube 10 from moving during sampling. In addition, since the spring 8 is provided between the limit plate 4 and the movable plate 6, the pull rod 5 is pulled to disengage the card plate 7 from the inside of the card slot 2, and then the rotating drum 3 is rotated to drive the sampling tube 10 to rotate. When the second through hole 15 on the side of the next sampling tube 10 corresponds to the first through hole 13, the card plate 7 is inserted into the inside of the card slot 2 due to the elastic force of the spring 8, thereby reducing the time for the staff to switch the sampling tube 10;

[0025] In order to make the internal card plate 7 rotate synchronously with the rotation of the drum 3, the card slot 2 is movably connected to the outer side of the card plate 7, the drum 3 is slidably connected to the outer side of the pull rod 5 through a circular through hole, the outer side of the pull rod 5 is welded and fixed to the slide plate, and a slide groove is provided on the side of the limit plate 4. The pull rod 5 is slidably connected to the slide groove in the limit plate 4 through the slide plate.

[0026] In order to prevent the internal exhaust gas from being excessively mixed with the air after the sampling tube 10 is collected, the sampling tube 10 is rotated and the through hole 15 is sealed by the sealing ring 12. When the sampling tube 10 needs to be disassembled for transportation, the through hole 15 can be blocked by the sealing plug to make the sampling tube 10 easy to carry.

[0027] In order to reduce the difficulty of disassembling the sampling cylinder 10, the guide groove 9 is in the shape of a dovetail type, the guide groove 9 is slidably connected to the outer side of the guide bar 11, the sealing ring 12 is made of rubber material, the sealing ring 12 is connected to the sampling head 14 through the through hole 13, one end of the piston rod 16 is welded and fixed to the piston, the interior of the sampling cylinder 10 is slidably connected to the piston, the inner wall of the threaded sleeve 17 is provided with a thread, and a threaded sleeve 17 is threadedly connected to the outer side of the rotating cylinder 3 through the threaded groove.

[0028] When the sampling tube 10 is in the state of being collected, the staff can directly use the sampling head 14 to collect the waste gas through the sampling head 14 and the through hole 13 and the through hole 2 15. When the sampling tube 10 is collected, the staff can pull the pull rod 5 outward to disengage the clamping plate 7 from the clamping slot 2, and then manually rotate the rotating drum 3 to rotate the new sampling tube 10 to the position of the through hole 13. At this time, the clamping plate 7 moves into the clamping slot 2 under the elastic force of the spring 8, thereby fixing the fixed plate 1 and the rotating drum 3 to prevent the sampling tube 10 from rotating during the collection process. In this way, multiple collections can be completed through one sampling device; the waste gas inside the sampling tube 10 can be discharged by pressing the piston rod 16. If the inside of the sampling tube 10 needs to be cleaned or replaced, the threaded sleeve 17 is rotated until it disengages from the outer thread of the rotating drum 3. At this time, the sampling tube 10 is pushed to make the guide bar 11 slide inside the guide groove 9, and the sampling tube 10 can be disassembled and removed for easy replacement and cleaning. It is also convenient for the staff to adjust the collection times according to actual collection.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable device for sampling absorption liquid in waste gas from a fixed pollution source, comprising a fixed plate (1), characterized in that: A card slot (2) is provided on the side of the fixed plate (1), the fixed plate (1) is rotatably connected to one end of the rotating drum (3), the rotating drum (3) is fixedly connected to the side of the limiting plate (4), a pull rod (5) is provided on the limiting plate (4), one end of the pull rod (5) is fixedly connected to the movable plate (6), the side of the movable plate (6) is fixedly connected to the card plate (7), a spring (8) is sleeved on the outside of the pull rod (5), a guide groove (9) is provided on the outside of the rotating drum (3), and a sampling cylinder (10) is provided on the outside of the rotating drum (3). The outer side of the sampling cylinder (10) is fixedly connected to the guide bar (11), the side of the fixing plate (1) is fixedly connected to the sealing ring (12), the side of the sealing ring (12) is provided with a through hole (13), the side of the fixing plate (1) is fixedly connected to the sampling head (14), the interior of the sampling cylinder (10) is provided with a through hole (15), the interior of the sampling cylinder (10) is provided with a piston rod (16), the outer side of the rotating cylinder (3) is provided with a threaded sleeve (17), and the side of the threaded sleeve (17) is fixedly connected to the top plate (18).

2. A portable absorption liquid sampling device for exhaust gas from fixed pollution sources according to claim 1, characterized in that: The number of the card slots (2) and the card plate (7) are both three, the card slots (2) are evenly distributed around the center of the fixed plate (1), the angle between two adjacent card slots (2) is 60 degrees, and the card slots (2) are movably plugged into the outer side of the card plate (7).

3. The portable absorption liquid sampling device for exhaust gas from fixed pollution sources according to claim 1 is characterized in that: The rotating drum (3) is slidably connected to the outer side of the pull rod (5) through a circular through hole, the outer side of the pull rod (5) is fixedly connected to the slide plate, a sliding groove is provided on the side of the limit plate (4), and the pull rod (5) is slidably connected to the sliding groove in the limit plate (4) through the slide plate.

4. The portable absorption liquid sampling device for exhaust gas from a fixed pollution source according to claim 1 is characterized in that: The guide groove (9) is in a dovetail shape, and the guide groove (9) is slidably connected to the outer side of the guide bar (11).

5. The portable absorption liquid sampling device for exhaust gas from fixed pollution sources according to claim 1 is characterized in that: The sealing ring (12) is made of rubber material, and the sealing ring (12) is connected to the sampling head (14) through the first through hole (13).

6. The portable absorption liquid sampling device for exhaust gas from a fixed pollution source according to claim 1 is characterized in that: One end of the piston rod (16) is fixedly connected to the piston, and the interior of the sampling cylinder (10) is slidably connected to the piston.

7. The portable absorption liquid sampling device for exhaust gas from fixed pollution sources according to claim 1 is characterized by: The inner wall of the threaded sleeve (17) is provided with a thread groove, one end of the rotating cylinder (3) is provided with a thread, and the threaded sleeve (17) is threadedly connected to the outer side of the rotating cylinder (3) through the thread groove.

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