A waste gas sampling device for industrial waste gas detection

Abstract

The utility model provides an industrial waste gas detects and uses waste gas sampling device relates to waste gas sampling technical field, including holding sleeve, the inside of holding sleeve is provided with telescopic adjusting mechanism, telescopic adjusting mechanism includes sliding block, the outside of sliding block is connected with the inner wall sliding sleeve joint of holding sleeve, the upper end fixed connection of sliding block has adjusting lever, the upper end of adjusting lever penetrates to the top of holding sleeve, through telescopic adjusting mechanism with the help of adjusting lever, hand screw bolt etc. component, realize sampling length flexible adjustment, adapt to different distance sampling scene, folding storage mechanism relies on the linkage of swing lever, positioning rod, completes the multi -angle, multi -posture switching of sampling cylinder, double mechanism linkage, not only can let the operator complete sampling outside safe distance, avoid high temperature burn risk, also reduced manual labor, and through the way of reciprocating exhaust gas, eliminate the residual gas interference of air pipe, make sampling detection precision improve, guarantee the effect of waste gas detection result accuracy.

Description

Technical Field

[0001] This utility model relates to the field of waste gas sampling technology, and in particular to a waste gas sampling device for industrial waste gas detection. Background Technology

[0002] With the continuous development and progress of my country's industry, industrial kilns, stoves, auxiliary processing equipment, waste incinerators, and motor vehicles generate exhaust gas emissions. When conducting exhaust gas emission tests and analyses, a specific sampling device is used to extract a certain amount of gas from the exhaust gas and send it to an exhaust gas analyzer for analysis and calculation to determine whether the exhaust gas emissions meet the relevant standards. When testing exhaust gas emissions, a sampling device is needed to store the gas before sending it to the testing laboratory and into the testing instrument for testing. Existing sampling devices are relatively slow when sampling exhaust gas.

[0003] For example, a waste gas sampling device for industrial waste gas detection disclosed in Chinese patent literature (publication number: CN222144639U) connects to the waste gas emission pipe through the vent pipe of the emission mechanism. Pulling the pull rod causes the connecting plate to rise in the sampling cylinder, thereby extracting the waste gas in the emission pipe into the sampling cylinder for storage, achieving the effect of sampling and storing waste gas. This device has high waste gas sampling efficiency and is easy to operate.

[0004] However, industrial exhaust gases are generally emitted at high temperatures, with some industrial boilers reaching 300-800℃. Although the temperature will decrease during the emission process, when sampling with this device, the operator needs to hold the sampling tube tightly with one hand and bring one end of the vent pipe close to the source of the high-temperature exhaust gas being emitted. During this process, due to the close proximity, the arm is exposed to high-temperature radiation for a long time, which can easily cause skin burns. In addition, the other hand needs to hold the lever continuously to extract the exhaust gas. This not only involves high labor intensity but also poses a safety hazard. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the high risk of burns from high-temperature exhaust gases and the high labor intensity when sampling exhaust gases at close range.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An industrial waste gas sampling device includes a grip sleeve, wherein a telescopic adjustment mechanism is provided inside the grip sleeve.

[0008] The telescopic adjustment mechanism includes a sliding block, the outer side of which is slidably sleeved with the inner wall of the grip sleeve. An adjustment rod is fixedly connected to the upper end of the sliding block, the upper end of which extends through to the top of the grip sleeve. A threaded hole is provided on the outer side of the grip sleeve, and a hand-tightening bolt is threadedly connected to the inner wall of the threaded hole. One end of the hand-tightening bolt contacts the outer side of the adjustment rod.

[0009] A folding and storage mechanism is provided above the grip sleeve.

[0010] Preferably, a battery is fixedly installed on the inner bottom wall of the grip sleeve, a spiral telescopic wire is provided at the upper end of the battery, the upper end of the spiral telescopic wire is fixedly installed with the lower end of the sliding block, and a control button is fixedly installed on the outside of the grip sleeve.

[0011] Preferably, the folding and storage mechanism includes a mounting block, a mounting groove is provided on one side of the mounting block, and a swing rod is hinged to the front and rear inner walls of the mounting groove by a pin. A first positioning groove is provided at the upper end of the swing rod, and second positioning grooves are provided at both ends of the swing rod in a symmetrical arrangement.

[0012] Preferably, the mounting block has an internal mounting cavity, and a movable ring is slidably sleeved on the inner wall of the mounting cavity. A positioning rod is fixedly sleeved on the inner wall of the movable ring, and one end of the positioning rod passes through the inside of the mounting groove and is movably inserted into the inner wall of one of the second positioning grooves.

[0013] Preferably, the other end of the positioning rod extends through to one side of the mounting block and is fixedly connected to a pull ring, and a return spring is fixedly connected to one side of the moving ring, with one end of the return spring fixedly connected to the inner wall of one side of the mounting cavity.

[0014] Preferably, the lower end of the swing arm is provided with an electric sampling mechanism, the electric sampling mechanism includes a sampling cylinder, a small servo electric cylinder is fixedly installed on the inner top wall of the sampling cylinder, and a piston block is fixedly connected to one end of the piston rod of the small servo electric cylinder.

[0015] Preferably, the piston block is movably sleeved with the inner wall of the sampling cylinder, and the lower end of the sampling cylinder is fixedly connected to symmetrically distributed air pipes. An inlet one-way valve and an exhaust one-way valve are respectively fixedly installed on the outside of the two air pipes.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the sampling length can be flexibly adjusted by means of components such as the telescopic adjustment mechanism, adjusting rod, and hand-tightening bolt, to adapt to different sampling distance scenarios. The folding and storage mechanism relies on the linkage of the swing rod and the positioning rod to complete the multi-angle and multi-posture switching of the sampling tube. The linkage of the two mechanisms not only allows operators to complete sampling from a safe distance, avoiding the risk of high temperature burns, but also reduces manual labor. Furthermore, by reciprocating the exhaust of waste gas, the interference of residual gas in the gas tube is eliminated, thereby improving the sampling and detection accuracy and ensuring the accuracy of waste gas detection results. Attached Figure Description

[0018] Figure 1 A schematic diagram of the main structure of an industrial waste gas sampling device for detection provided by this utility model;

[0019] Figure 2 A perspective view of the gripping sleeve structure of an industrial waste gas sampling device for detecting waste gas provided by this utility model;

[0020] Figure 3 Exploded view of the grip sleeve structure of an industrial waste gas sampling device for detection provided by this utility model;

[0021] Figure 4 Exploded view of the mounting block structure of an industrial waste gas sampling device for detection provided by this utility model;

[0022] Figure 5 A three-dimensional view of the sampling cylinder structure of an industrial waste gas sampling device for detection provided by this utility model.

[0023] Legend: 1. Holding sleeve; 2. Sliding block; 21. Adjusting rod; 22. Threaded hole; 23. Hand-tightening bolt; 24. Battery; 25. Spiral telescopic wire; 26. Control button; 3. Mounting block; 31. Mounting groove; 32. Swing rod; 33. First positioning groove; 34. Second positioning groove; 35. Mounting cavity; 36. Moving ring; 37. Positioning rod; 38. Pull ring; 39. Return spring; 4. Sampling cylinder; 41. Small servo electric cylinder; 42. Piston block; 43. Air pipe; 44. Inlet one-way valve; 45. Exhaust one-way valve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Example

[0029] like Figures 1-5 As shown, this utility model provides a technical solution: an industrial waste gas sampling device, including a gripping sleeve 1, a telescopic adjustment mechanism inside the gripping sleeve 1, which forms a flexible and precise sampling length adjustment system, providing strong support for waste gas sampling operations at different distances, and the core component sliding block 2 slidingly sleeved with the inner wall of the gripping sleeve 1, with an adjustment rod 21 fixed at the upper end.

[0030] The sliding engagement between the sliding block 2 and the holding sleeve 1 provides high-precision guidance for the extension and retraction of the adjusting rod 21, allowing operators to precisely adjust the length of the sampling device according to different distances from exhaust gas outlets, meeting various sampling needs from near to far distances.

[0031] The upper end of the adjusting rod 21 extends through to the top of the holding sleeve 1. The holding sleeve 1 has a threaded hole 22 on its outside and a hand-tightening bolt 23 is threaded on its inner wall. One end of the hand-tightening bolt 23 contacts the outside of the adjusting rod 21. The hand-tightening bolt 23 can quickly lock the extension length of the adjusting rod 21. After locking, the length of the adjusting rod 21 is kept stable during the sampling process, avoiding the impact of the sliding of the adjusting rod 21 on the sampling accuracy and greatly improving the accuracy of the sampling.

[0032] A battery 24 is fixedly installed on the bottom wall of the grip sleeve 1, and a spiral telescopic wire 25 is provided at the upper end. The upper end of the spiral telescopic wire 25 is fixedly installed with the lower end of the sliding block 2. A control button 26 is fixedly installed on the outside of the grip sleeve 1.

[0033] The battery 24 provides stable power to the entire device, meeting the needs of long-term, multi-batch sampling operations. The spiral telescopic wire 25 has excellent telescopic performance and can flexibly extend or retract with the extension and retraction of the adjusting rod 21. Within the maximum extension and retraction range of the adjusting rod 21, the circuit connection can still be guaranteed to be stable, providing a reliable circuit foundation for the precise control of the subsequent small servo electric cylinder 41. The control button 26 allows the operator to remotely control the small servo electric cylinder 41 without close contact with high-temperature exhaust gas, improving the convenience and safety of operation. This allows the operator to complete the sampling operation from a safe distance. The lower end of the holding sleeve 1 is equipped with a charging port for charging the battery 24.

[0034] The folding and storage mechanism above the holding sleeve 1 enables the sampling tube 4 to switch quickly and be stably fixed in multiple angles and postures, providing flexible posture adjustment capability for exhaust gas sampling under complex working conditions. The mechanism includes a mounting block 3, with a mounting groove 31 on one side of the mounting block 3, and a swing rod 32 is hinged to the front and rear inner walls of the mounting groove 31 by a pin.

[0035] The mounting slot 31 provides ample rotation space for the swing arm 32. The pin connection allows the swing arm 32 to rotate flexibly, and operators can easily and quickly adjust the posture of the swing arm 32, thereby adjusting the posture of the sampling cylinder 4, to meet the sampling needs of various exhaust gas outlets such as L-shaped and straight-line types.

[0036] The upper end of the swing rod 32 is provided with a first positioning groove 33, and the two ends are provided with second positioning grooves 34 that are symmetrically distributed. The first positioning groove 33 and the second positioning groove 34 are used to cooperate with the positioning rod 37 to achieve precise fixation of the swing rod 32 in different postures. This high precision ensures the stability of the posture of the sampling tube 4, so that the sampling tube 4 will not deviate from the exhaust port due to posture shaking during the sampling process, thus ensuring the accuracy of sampling.

[0037] The mounting block 3 has an internal mounting cavity 35. A movable ring 36 is slidably sleeved on the inner wall of the mounting cavity 35, and a positioning rod 37 is fixedly sleeved on the inner wall of the movable ring 36. The movable ring 36 provides a high-precision sliding guide for the positioning rod 37, ensuring that the positioning rod 37 can be accurately inserted into the first positioning groove 33 or the second positioning groove 34, thus avoiding the problem of attitude fixation failure due to inaccurate positioning.

[0038] One end of the positioning rod 37 passes through the interior of the mounting groove 31 and is movably inserted into the inner wall of one of the second positioning grooves 34. The other end passes through one side of the mounting block 3 and is fixedly connected to a pull ring 38. One side of the moving ring 36 is fixedly connected to a return spring 39, and one end of the return spring 39 is fixedly connected to one side of the inner wall of the mounting cavity 35.

[0039] The pull ring 38 is ergonomically designed, allowing operators to easily pull the positioning rod 37. The return spring 39 provides a stable return force for the positioning rod 37, ensuring that the positioning rod 37 can be reliably inserted after release, thus achieving stable fixation of the swing rod 32 and improving its vibration resistance after fixation.

[0040] The electric sampling mechanism at the lower end of the swing rod 32 enables precise, efficient and non-interference sampling of exhaust gas, providing high-quality samples for exhaust gas detection. The mechanism includes a sampling cylinder 4, which consists of a cylinder body and a cover body, and is fixed by bolts for easy disassembly, cleaning and maintenance. A small servo electric cylinder 41 is fixedly installed on the inner top wall of the sampling cylinder 4, and a piston block 42 is fixedly connected to one end of the piston rod of the small servo electric cylinder 41.

[0041] The small servo electric cylinder 41 has high-precision position control capability, which can accurately control the lifting and lowering of the piston block 42, making the lifting and lowering action of the piston block 42 precise and controllable. Compared with the traditional manual pull-out sampling structure, the degree of automation of sampling is improved and the sampling efficiency is improved.

[0042] The piston block 42 is movably sleeved with the inner wall of the sampling cylinder 4. The lower end of the sampling cylinder 4 is fixedly connected to symmetrically distributed air pipes 43. An inlet one-way valve 44 and an exhaust one-way valve 45 are fixedly installed on the outside of the two air pipes 43 respectively.

[0043] The piston block 42 and the sampling cylinder 4 work together to form a variable gas chamber. The combination of the inlet check valve 44 and the exhaust check valve 45 enables unidirectional extraction and discharge of waste gas, effectively avoiding gas backflow. In actual sampling, the reciprocating extraction and discharge of waste gas can eliminate the interference of residual gas in the gas pipe 43, improve the sampling and detection accuracy, ensure the accuracy of waste gas detection results, and provide a reliable basis for judging whether industrial waste gas meets emission standards.

[0044] It should be noted that the electrical components mentioned above are all existing mature technologies. Appropriate models and power can be selected based on the technical knowledge of those skilled in the art, and they are controlled by PLC controllers, which are existing mature technologies. Therefore, they will not be described in detail again.

[0045] The working process of this utility model:

[0046] Step one: First, fully charge the battery 24 using the charging port at the lower end of the holding sleeve 1 to ensure sufficient power for the device. The spiral telescopic wire 25 is then electrically connected to the small servo electric cylinder 41 via the sliding block 2, adjusting rod 21, mounting block 3, swing rod 32, and sampling cylinder 4. The small servo electric cylinder 41 can be remotely controlled via the control button 26. Adjust the swing rod 32 according to the sampling requirements: Pull the pull ring 38, which moves the positioning rod 37. At this time, the return spring 39 is compressed and contracts, and the positioning rod 37 disengages from the current position. If the sampling cylinder 4 needs to be inserted into the exhaust pipe through the second positioning groove 34, it is adjusted to an L-shaped sampling posture. The swing rod 32 is rotated 90 degrees, and then the pull ring 38 is released. Under the action of the return spring 39, the positioning rod 37 is inserted into the first positioning groove 33 to achieve the fixed limit of the swing rod 32. If long-distance linear sampling is required, the swing rod 32 is rotated 180 degrees, the pull ring 38 is released, and the positioning rod 37 is inserted into another second positioning groove 34 under the action of the return spring 39 to complete the posture fixation of the swing rod 32.

[0047] Step 2: After adjusting the posture of the swing rod 32, loosen the hand-tightening bolt 23, pull out the adjusting rod 21, and extend it to a suitable length to meet the distance requirements for long-distance sampling. Then tighten the hand-tightening bolt 23 to fix the adjusting rod 21 and ensure that the adjusting rod 21 will not slide arbitrarily during the sampling process.

[0048] Step 3: Activate the small servo electric cylinder 41 to perform three reciprocating extension and retraction movements. During the extension and retraction, the small servo electric cylinder 41 drives the piston block 42 to reciprocate up and down within the sampling cylinder 4. Through the cooperation of the inlet one-way valve 44 and the exhaust one-way valve 45, the exhaust gas is reciprocated for extraction and discharge. This step effectively avoids the mixing of other residual gases in the air pipe 43 during direct extraction, which would affect the accuracy of the test results. After three reciprocating extensions and retractions, drive the small servo electric cylinder 41 to extend, driving the piston block 42 to descend and move to the bottom wall of the sampling cylinder 4. The gas inside the sampling cylinder 4 is discharged through one of the air pipes 43 and in cooperation with the exhaust one-way valve 45. Subsequently, control the small servo electric cylinder 41 to retract, and the piston block 42 to rise. At this time, with the cooperation of the inlet one-way valve 44, the other air pipe 43 samples the exhaust gas, completing one exhaust gas sampling process.

[0049] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An industrial waste gas sampling device, comprising a gripping sleeve (1), characterized in that: The grip sleeve (1) is provided with a telescopic adjustment mechanism inside; The telescopic adjustment mechanism includes a sliding block (2), the outer side of which is slidably sleeved with the inner wall of the grip sleeve (1), and an adjustment rod (21) is fixedly connected to the upper end of the sliding block (2). The upper end of the adjustment rod (21) extends through to the top of the grip sleeve (1). A threaded hole (22) is provided on the outer side of the grip sleeve (1), and a hand-tightening bolt (23) is threadedly connected to the inner wall of the threaded hole (22). One end of the hand-tightening bolt (23) is in contact with the outer side of the adjustment rod (21). A folding and storage mechanism is provided above the grip sleeve (1).

2. The waste gas sampling device for industrial waste gas detection according to claim 1, characterized in that: A battery (24) is fixedly installed on the inner bottom wall of the grip sleeve (1). A spiral telescopic wire (25) is provided at the upper end of the battery (24). The upper end of the spiral telescopic wire (25) is fixedly installed with the lower end of the sliding block (2). A control button (26) is fixedly installed on the outside of the grip sleeve (1).

3. The waste gas sampling device for industrial waste gas detection according to claim 1, characterized in that: The folding storage mechanism includes a mounting block (3), a mounting groove (31) is provided on one side of the mounting block (3), and a swing rod (32) is hinged to the front and rear inner walls of the mounting groove (31) by a pin. A first positioning groove (33) is provided at the upper end of the swing rod (32), and a second positioning groove (34) is provided at both ends of the swing rod (32) in a symmetrical arrangement.

4. The waste gas sampling device for industrial waste gas detection according to claim 3, characterized in that: The mounting block (3) has an installation cavity (35) inside. A movable ring (36) is slidably sleeved on the inner wall of the mounting cavity (35). A positioning rod (37) is fixedly sleeved on the inner wall of the movable ring (36). One end of the positioning rod (37) passes through the interior of the mounting groove (31) and is movably inserted into the inner wall of one of the second positioning grooves (34).

5. The waste gas sampling device for industrial waste gas detection according to claim 4, characterized in that: The other end of the positioning rod (37) extends through to one side of the mounting block (3) and is fixedly connected to a pull ring (38). A reset spring (39) is fixedly connected to one side of the moving ring (36), and one end of the reset spring (39) is fixedly connected to one side of the inner wall of the mounting cavity (35).

6. The waste gas sampling device for industrial waste gas detection according to claim 3, characterized in that: The lower end of the swing rod (32) is provided with an electric sampling mechanism, which includes a sampling cylinder (4). A small servo electric cylinder (41) is fixedly installed on the inner top wall of the sampling cylinder (4). A piston block (42) is fixedly connected to one end of the piston rod of the small servo electric cylinder (41).

7. The waste gas sampling device for industrial waste gas detection according to claim 6, characterized in that: The piston block (42) is movably sleeved with the inner wall of the sampling cylinder (4). The lower end of the sampling cylinder (4) is fixedly connected to symmetrically distributed air pipes (43). An inlet one-way valve (44) and an exhaust one-way valve (45) are fixedly installed on the outside of the two air pipes (43).

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