Tail gas purification device for laboratory

Abstract

The utility model discloses a laboratory tail gas purification device which comprises an exhaust pipe, a rotating joint, a second connecting pipe and a gas inlet pipe, the bottom of the exhaust pipe is fixedly connected with the fixed end of the rotating joint, the rotating end of the rotating joint is fixedly connected with a first connecting pipe, and the first connecting pipe is connected with the second connecting pipe through a first corrugated pipe; a third connecting pipe is fixedly connected to the end, opposite to the first corrugated pipe, of the second connecting pipe and connected with the top of the air inlet pipe through the second corrugated pipe. The first connecting pipe and the second connecting pipe are movably connected through a telescopic assembly arranged on the first corrugated pipe, and the third connecting pipe and the air inlet pipe are movably connected through an adjusting assembly arranged at the bottom of the second connecting pipe. Through the structure, tail gas can be better absorbed by adjusting the position of the gas inlet pipe according to the requirement of an experiment position, the structure is simple, operation is convenient, the adjusting area of the gas inlet pipe is larger, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of purification devices, in particular to a laboratory tail gas purification device. Background Art

[0002] With the continuous development of science and technology, the problem of laboratory exhaust emissions has become increasingly prominent, especially some toxic and harmful exhaust gases, which are directly discharged into the atmosphere and pose a serious threat to the environment and human health. Therefore, the purification of harmful gases and particulate matter in the laboratory environment is conducive to ensuring the health and safety of laboratory operators and the cleanliness and hygiene of the experimental environment.

[0003] In the prior art, after searching, it was found that a Chinese patent disclosed a laboratory exhaust gas purification device, and its application number is 202023240272.9. The above patent mainly includes a mounting plate, a gas collection hood and a purification tower. A purification tower is fixed at one end of the mounting plate, and a purification mechanism is arranged inside the purification tower. A motor is fixed at the bottom end of the mounting plate, and a screw is rotatably connected to the output end of the motor. A nut is threadedly connected to the screw, and a vertical rod is fixed at one end of the nut. A fixing ring is fixed at the end of the vertical rod away from the nut. A connecting pipe is fixed at one end of the gas collection hood, and a telescopic hose is arranged at the other end of the connecting pipe. The other end of the telescopic hose is connected to an air intake pipe, and the air intake pipe is fixedly connected to the purification tower. Although the above utility model can move the collection hood through a driving mechanism, it is convenient to collect and purify the exhaust gas generated by experiments at different locations on the platform, so as to avoid the exhaust gas from spreading into the laboratory, causing harm to the staff and affecting the health of the staff. However, when the above device is provided with components such as motors, screws, nuts and vertical plates to adjust the position of the connecting pipe, the left and right positions of the connecting pipe can only be adjusted within a certain range. This limitation greatly restricts the flexibility and applicability of the moving range of the connecting pipe. When conducting experiments in a larger range of locations, it may not be able to effectively connect to the exhaust gas generation point, affecting the absorption and purification effect of the exhaust gas. Therefore, those skilled in the art provide a laboratory exhaust gas purification device to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a laboratory exhaust gas purification device, which can adjust the height position of the intake pipe under the action of an adjusting component, and adjust the distance between the second connecting pipe and the first connecting pipe under the action of a telescopic component, so as to facilitate the adjustment of the horizontal position of the intake pipe. At the same time, the first connecting pipe is connected to the exhaust pipe through a rotating joint, and rotating the first connecting pipe can drive the intake pipe to rotate to further adjust the position of the intake pipe to the exhaust gas generation point, thereby facilitating the adjustment of the position of the intake pipe according to the requirements of the experimental position to better absorb the exhaust gas. The utility model has a simple structure, convenient operation, a larger adjustment area of ​​the intake pipe, and strong practicality.

[0005] To achieve the above-mentioned purpose, a laboratory exhaust gas purification device is provided, comprising an exhaust pipe, a rotary joint, a second connecting pipe and an intake pipe, wherein the bottom of the exhaust pipe is fixedly connected to the fixed end of the rotary joint, the rotating end of the rotary joint is fixedly connected to the first connecting pipe, the first connecting pipe is connected to the second connecting pipe through a first corrugated pipe, the second connecting pipe is fixedly connected to a third connecting pipe at one end opposite to the first corrugated pipe, and the third connecting pipe is connected to the top of the intake pipe through the second corrugated pipe;

[0006] The first connecting pipe and the second connecting pipe are movably connected via a telescopic component arranged on the first bellows, and the third connecting pipe and the air intake pipe are movably connected via an adjusting component arranged on the bottom of the second connecting pipe.

[0007] According to the laboratory exhaust gas purification device, the adjustment component includes a connecting rod fixedly connected to the bottom of the second connecting pipe, an adjusting screw fixedly connected to the bottom of the connecting rod, a support plate fixedly connected to the outside of the intake pipe, and an internally threaded sleeve rotatably connected to the top of the support plate and threadedly connected to the adjusting screw.

[0008] According to the laboratory exhaust gas purification device, the telescopic assembly includes a fixing plate fixedly connected to the top of the second connecting pipe and a telescopic rod fixedly connected between the fixing plate and the first connecting pipe.

[0009] According to the laboratory exhaust gas purification device, the bottom of the air inlet pipe is fixedly connected with an air collecting hood, and the bottom of the air collecting hood is installed with an activated carbon filter plate through a connecting component.

[0010] According to the laboratory exhaust gas purification device, the connecting assembly includes a mounting plate attached to the bottom of the gas collecting hood, four connecting plates evenly fixedly connected to the outer circle of the mounting plate and positioning screws threadedly connected to the corresponding connecting plates, the activated carbon filter plate is embedded in the interior of the mounting plate, the facing ends of the four positioning screws are attached to the top of the gas collecting hood, and the separated ends of the four positioning screws are fixedly connected with knobs.

[0011] According to the laboratory exhaust gas purification device, the internal threaded sleeve is arranged on one side close to the bottom of the air intake pipe and a non-slip rubber sleeve is fixedly connected to the outer side.

[0012] The utility model has the following beneficial effects:

[0013] Compared with the prior art, this laboratory exhaust gas purification device can adjust the height position of the intake pipe under the action of the adjusting component, and adjust the distance between the second connecting pipe and the first connecting pipe under the action of the telescopic component, so as to facilitate the adjustment of the horizontal position of the intake pipe. At the same time, the first connecting pipe is connected to the exhaust pipe through a rotating joint. Rotating the first connecting pipe can drive the intake pipe to rotate to further adjust the position of the intake pipe to the exhaust gas generation point, thereby facilitating the adjustment of the position of the intake pipe according to the requirements of the experimental position to better absorb the exhaust gas. The structure is simple, the operation is convenient, the adjustment area of ​​the intake pipe is larger, and the practicability is strong.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a first overall structural schematic diagram of a laboratory tail gas purification device of the utility model;

[0017] Figure 2 This is a second overall structural schematic diagram of a laboratory tail gas purification device of the utility model;

[0018] Figure 3 The utility model is a laboratory tail gas purification device Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 4 The utility model is a schematic structural diagram of the connection of an air intake pipe, an air collecting hood, a mounting plate and an activated carbon filter plate of a laboratory exhaust purification device.

[0020] Legend:

[0021] 1. Exhaust pipe; 2. Rotary joint; 3. First connecting pipe; 4. Second connecting pipe; 5. First bellows; 6. Third connecting pipe; 7. Second bellows; 8. Inlet pipe; 9. Air collecting hood; 10. Connecting rod; 11. Adjusting screw; 12. Internal threaded sleeve; 13. Fixing plate; 14. Telescopic rod; 15. Mounting plate; 16. Connecting plate; 17. Positioning screw; 18. Knob; 19. Activated carbon filter plate. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1 and Figure 2 The utility model embodiment is a laboratory exhaust gas purification device, which includes an exhaust pipe 1, a rotary joint 2, a second connecting pipe 4 and an intake pipe 8. The bottom of the exhaust pipe 1 is fixedly connected to the fixed end of the rotary joint 2, the rotating end of the rotary joint 2 is fixedly connected to the first connecting pipe 3, the first connecting pipe 3 is connected to the second connecting pipe 4 through the first corrugated pipe 5, the second connecting pipe 4 is fixedly connected to the third connecting pipe 6 at the end opposite to the first corrugated pipe 5, and the third connecting pipe 6 is connected to the top of the intake pipe 8 through the second corrugated pipe 7; the first connecting pipe 3 and the second connecting pipe 4 are movably connected through a telescopic component provided on the first corrugated pipe 5, and the third connecting pipe 6 and the intake pipe 8 are movably connected through an adjusting component provided at the bottom of the second connecting pipe 4;

[0024] The channel formed among the intake pipe 8, the second bellows 7, the third connecting pipe 6, the second connecting pipe 4, the first bellows 5, the first connecting pipe 3 and the exhaust pipe 1 can facilitate the transportation of exhaust gas, and the intake pipe 8 and the third connecting pipe 6 are connected by an adjusting component, and the height position of the intake pipe 8 can be adjusted under the action of the adjusting component, and the second connecting pipe 4 and the first connecting pipe 3 are connected by a telescopic component, and the distance between the second connecting pipe 4 and the first connecting pipe 3 is adjusted under the action of the telescopic component, so as to facilitate the adjustment of the horizontal position of the intake pipe 8. At the same time, the first connecting pipe 3 is connected to the exhaust pipe 1 through a rotating joint 2. Rotating the first connecting pipe 3 can drive the intake pipe 8 to rotate to further adjust the position of the intake pipe 8 to the exhaust gas generation point, so as to facilitate the adjustment of the position of the intake pipe 8 according to the requirements of the experimental position to better absorb the exhaust gas. The structure is simple, the operation is convenient, the adjustment area of ​​the intake pipe 8 is larger, and the practicality is strong.

[0025] Reference Figure 1 and Figure 2 The adjusting component includes a connecting rod 10 fixedly connected to the bottom of the second connecting pipe 4, an adjusting screw 11 fixedly connected to the bottom of the connecting rod 10, a supporting plate fixedly connected to the outside of the intake pipe 8, and an internally threaded sleeve 12 rotatably connected to the top of the supporting plate and threadedly connected to the adjusting screw 11. The supporting structure formed by the connecting rod 10, the adjusting screw 11 and the internally threaded sleeve 12 can support the intake pipe 8, and the internally threaded sleeve 12 can be moved up and down by rotating the internally threaded sleeve 12 under the action of the threaded connection with the adjusting screw 11, thereby better driving the intake pipe 8 to move up and down to adjust the height position of the intake pipe 8.

[0026] Reference Figure 1 and Figure 2The telescopic assembly includes a fixed plate 13 fixedly connected to the top of the second connecting tube 4 and a telescopic rod 14 fixedly connected between the fixed plate 13 and the first connecting tube 3. The telescopic rod 14 fixed on the first connecting tube 3 can better support the second connecting tube 4 after being connected to the fixed plate 13. At the same time, the first connecting tube 3 and the second connecting tube 4 are connected through the telescopic rod 14 to ensure the normal movement operation of the second connecting tube 4.

[0027] Reference Figure 2 and Figure 4 An air collecting hood 9 is fixedly connected to the bottom of the air intake pipe 8, and an activated carbon filter plate 19 is installed at the bottom of the air collecting hood 9 through a connecting component. The air collecting hood 9 can guide the exhaust gas to facilitate the exhaust gas to flow better into the air intake pipe 8, and when the exhaust gas flows into the air intake pipe 8, the exhaust gas can be adsorbed and purified under the action of the activated carbon filter plate 19.

[0028] Reference Figure 3 The connecting assembly includes a mounting plate 15 attached to the bottom of the gas collecting hood 9, four connecting plates 16 evenly fixedly connected to the outer ring of the mounting plate 15, and a positioning screw 17 threadedly connected to the corresponding connecting plate 16. The activated carbon filter plate 19 is embedded in the mounting plate 15. The facing ends of the four positioning screws 17 are all attached to the top of the gas collecting hood 9. The separated ends of the four positioning screws 17 are fixedly connected with knobs 18. The mounting plate 15 is installed at the bottom of the gas collecting hood 9. Turning the knob 18 drives the positioning screw 17 to rotate. The rotating positioning screw 17 moves to one side of the gas collecting hood 9 and fits on the gas collecting hood 9, so as to complete the installation of the activated carbon filter plate 19. The operation is simple, and the movable connection method facilitates the disassembly of the activated carbon filter plate 19 to meet the replacement or cleaning needs.

[0029] Reference Figure 1 and Figure 2 The internal threaded sleeve 12 is arranged on one side close to the bottom of the air intake pipe 8 and is fixedly connected to the outside with a non-slip rubber sleeve. The height of the internal threaded sleeve 12 close to the bottom of the air intake pipe 8 is lower, which is more convenient for the experimenter to operate, and the non-slip rubber sleeve is arranged on the outside to help the experimenter to rotate the internal threaded sleeve 12 more stably.

[0030] Working principle: the channel formed among the intake pipe 8, the second bellows 7, the third connecting pipe 6, the second connecting pipe 4, the first bellows 5, the first connecting pipe 3 and the exhaust pipe 1 can facilitate the transportation of the exhaust gas; when adjusting the height position of the intake pipe 8, the internal threaded sleeve 12 can be rotated to achieve the up and down movement operation of the internal threaded sleeve 12 under the threaded connection with the adjusting screw 11, so as to better drive the intake pipe 8 to move up and down to adjust the height position of the intake pipe 8;

[0031] At the same time, the first connecting pipe 3 and the second connecting pipe 4 are connected by a telescopic rod 14, and the distance between the second connecting pipe 4 and the first connecting pipe 3 can be adjusted, so as to facilitate the adjustment of the horizontal position of the intake pipe 8. At the same time, the first connecting pipe 3 is connected to the exhaust pipe 1 through a rotating joint 2. Rotating the first connecting pipe 3 can drive the intake pipe 8 to rotate to further adjust the position of the intake pipe 8 to the place where the exhaust gas is generated, so as to facilitate adjusting the position of the intake pipe 8 according to the requirements of the experimental position to better absorb the exhaust gas. The structure is simple, the operation is convenient, the adjustment area of ​​the intake pipe 8 is larger, and the practicality is strong.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A laboratory tail gas purification device, characterized in that: The invention comprises an exhaust pipe (1), a rotary joint (2), a second connecting pipe (4) and an intake pipe (8), wherein the bottom of the exhaust pipe (1) is fixedly connected to the fixed end of the rotary joint (2), the rotating end of the rotary joint (2) is fixedly connected to a first connecting pipe (3), the first connecting pipe (3) is connected to the second connecting pipe (4) via a first corrugated pipe (5), the end of the second connecting pipe (4) opposite to the first corrugated pipe (5) is fixedly connected to a third connecting pipe (6), and the third connecting pipe (6) is connected to the top of the intake pipe (8) via a second corrugated pipe (7); The first connecting pipe (3) and the second connecting pipe (4) are movably connected via a telescopic component provided on the first bellows (5), and the third connecting pipe (6) and the air intake pipe (8) are movably connected via an adjusting component provided on the bottom of the second connecting pipe (4).

2. A laboratory tail gas purification device according to claim 1, characterized in that: The adjustment assembly comprises a connecting rod (10) fixedly connected to the bottom of the second connecting pipe (4), an adjustment screw (11) fixedly connected to the bottom of the connecting rod (10), a support plate fixedly connected to the outside of the air intake pipe (8), and an internal threaded sleeve (12) rotatably connected to the top of the support plate and threadedly connected to the adjustment screw (11).

3. A laboratory tail gas purification device according to claim 1, characterized in that: The telescopic assembly comprises a fixing plate (13) fixedly connected to the top of the second connecting tube (4) and a telescopic rod (14) fixedly connected between the fixing plate (13) and the first connecting tube (3).

4. A laboratory tail gas purification device according to claim 3, characterized in that: The bottom of the air inlet pipe (8) is fixedly connected to an air collecting hood (9), and the bottom of the air collecting hood (9) is installed with an activated carbon filter plate (19) via a connecting assembly.

5. A laboratory tail gas purification device according to claim 4, characterized in that: The connection assembly comprises a mounting plate (15) attached to the bottom of the gas collecting hood (9), four connecting plates (16) evenly and fixedly connected to the outer ring of the mounting plate (15), and positioning screws (17) threadedly connected to the inside of the corresponding connecting plates (16); the activated carbon filter plate (19) is embedded in the inside of the mounting plate (15); the facing ends of the four positioning screws (17) are attached to the top of the gas collecting hood (9); and the separated ends of the four positioning screws (17) are fixedly connected to knobs (18).

6. A laboratory tail gas purification device according to claim 2, characterized in that: The internal threaded sleeve (12) is arranged on one side close to the bottom of the air intake pipe (8) and has an anti-slip rubber sleeve fixedly connected to the outside.

Images