A waste gas sampling device for industrial waste gas detection

Abstract

The utility model discloses an industrial waste gas detection exhaust gas sampling device relates to exhaust gas sampling technical field, including exhaust gas sampling cylinder, the inner chamber of exhaust gas sampling cylinder is equipped with closed subassembly, the closed subassembly is by sealing plate, through -hole, rotation column, limit disc, rotating cap is composed, the sealing plate is located the bottom of exhaust gas sampling cylinder inner chamber, the bottom fixedly connected with rotation column of sealing plate. This industrial waste gas detection exhaust gas sampling device, through the use of closed subassembly, through the rotation of promoting rotating cap, make rotating cap rotation drive rotation column, limit disc and sealing plate rotate, and can control the coincidence of through -hole and exhaust gas inlet pipe's port or with exhaust gas exhaust pipe's port at the time, and exhaust gas inlet pipe port coincides, and exhaust gas exhaust pipe port coincides, exhaust gas can be discharged, and in the operation process, the sampling personnel only need to rotate rotating cap.

Description

Technical Field

[0001] This utility model relates to the field of waste gas sampling technology, specifically 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 will 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.

[0003] When testing exhaust gases, a sampling device is needed to store the gas before sending it to the testing laboratory and into the testing instrument for analysis. Existing sampling devices are slow in sampling exhaust gases, reducing work efficiency. Therefore, the prior art, Chinese Patent Publication No. "CN222144639U", discloses an exhaust gas sampling device for industrial exhaust gas testing, including a sampling mechanism. The sampling mechanism is externally equipped with an emission mechanism. The sampling mechanism includes a sampling cylinder with a leakage hole at the top. A pull rod is installed inside the leakage hole. A connecting plate is installed at the bottom of the pull rod. An installation groove is opened on the outer surface of the connecting plate. A rubber ring is fitted inside the installation groove. A placement component is provided at the bottom of the sampling cylinder.

[0004] This industrial waste gas sampling device samples waste gas from the factory's waste gas emission pipe. The sampling is achieved by connecting the device to the emission pipe via a ventilation pipe. Pulling the lever raises the connecting plate inside the sampling cylinder, drawing the waste gas from the emission pipe into the sampling cylinder for storage. However, this product requires frequent opening and closing of valves on the inlet and outlet pipes, which is inconvenient. Therefore, we propose an industrial waste gas sampling device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an industrial waste gas sampling device for detection, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an industrial waste gas sampling device, comprising a waste gas sampling cylinder, wherein the inner cavity of the waste gas sampling cylinder is provided with a sealing assembly, the sealing assembly being composed of a sealing plate, a through hole, a rotating column, a limiting plate, and a rotating cap, the sealing plate being located at the bottom of the inner cavity of the waste gas sampling cylinder, the bottom of the sealing plate being fixedly connected to the rotating column, the rotating column penetrating the bottom of the waste gas sampling cylinder and being fixedly connected to the limiting plate, the upper surface of the limiting plate being in contact with the bottom of the waste gas sampling cylinder, the bottom end of the limiting plate being fixedly connected to the rotating cap, the outer side of the rotating cap being provided with multiple anti-slip ridges, and the surface of the sealing plate being provided with a through hole.

[0007] Preferably, an exhaust gas inlet pipe is fixedly connected to one side of the bottom of the exhaust gas sampling cylinder, and an exhaust gas outlet pipe is fixedly connected to the other side of the bottom of the exhaust gas sampling cylinder. The exhaust gas outlet pipe and the exhaust gas inlet pipe are symmetrically arranged. The ends of the exhaust gas inlet pipe and the exhaust gas outlet pipe extend into the inner cavity of the exhaust gas sampling cylinder and are parallel to the bottom of the inner cavity of the exhaust gas sampling cylinder. The inner diameter of the exhaust gas inlet pipe and the exhaust gas outlet pipe is the same as the inner diameter of the through hole.

[0008] Preferably, a piston plate is slidably sleeved in the inner cavity of the exhaust gas sampling cylinder, a cover plate is threadedly installed on the outer top of the exhaust gas sampling cylinder, and a base is fixedly connected to the bottom end of the exhaust gas sampling cylinder.

[0009] Preferably, the base is connected to the exhaust pipe and the exhaust inlet pipe.

[0010] Preferably, the upper surface of the cover plate is provided with a storage groove, and a pressing rod is slidably connected to the inner cavity of the cover plate. The bottom end of the pressing rod extends into the inner cavity of the exhaust gas sampling cylinder and is threaded into the inside of the piston plate.

[0011] Preferably, the lower surface and side surface of the sealing plate and the side surface of the piston plate are provided with sealing rubber.

[0012] Preferably, two limiting blocks are fixedly connected to the bottom of the exhaust gas sampling cylinder, and a positioning block is installed on one side of the limiting plate.

[0013] This utility model provides a waste gas sampling device for industrial waste gas detection, which has the following beneficial effects:

[0014] This industrial waste gas sampling device utilizes a sealed assembly. By pushing a rotating cap, the device rotates a rotating column, a limiting plate, and a sealing plate. This allows the through-hole to align with either the port of the waste gas inlet pipe or the port of the waste gas outlet pipe. When aligned with the inlet pipe, industrial waste gas enters the sampling cylinder through the inlet pipe; when aligned with the outlet pipe, waste gas is discharged. During operation, the sampling personnel only need to rotate the rotating cap. The rotation angle is limited by the positioning and limiting blocks, preventing inaccurate through-hole positioning and improving the ease of use and stability of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the closed component of this utility model;

[0018] Figure 4 This is a schematic diagram of the exhaust gas sampling cylinder of this utility model viewed from below.

[0019] In the diagram: 1. Exhaust gas sampling cylinder; 2. Piston plate; 3. Storage groove; 4. Cover plate; 5. Pressing rod; 6. Sealing plate; 601. Through hole; 602. Rotating column; 603. Limiting plate; 604. Rotating cap; 7. Exhaust gas inlet pipe; 8. Exhaust gas outlet pipe; 9. Base; 10. Limiting block; 11. Positioning block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1: Refer to Figures 1-4This utility model provides an industrial waste gas sampling device, including a waste gas sampling cylinder 1. The inner cavity of the waste gas sampling cylinder 1 is provided with a sealing assembly, which consists of a sealing plate 6, a through hole 601, a rotating column 602, a limiting plate 603, and a rotating cap 604. The sealing plate 6 is located at the bottom of the inner cavity of the waste gas sampling cylinder 1. The rotating column 602 is fixedly connected to the bottom of the sealing plate 6. The rotating column 602 penetrates the bottom of the waste gas sampling cylinder 1 and is fixedly connected to the limiting plate 603. The upper surface of the limiting plate 603 is in contact with the bottom of the waste gas sampling cylinder 1. The bottom end of the limiting plate 603 is fixedly connected to the rotating cap 604. The outer side of the rotating cap 604 is provided with multiple anti-slip ridges. The surface of the sealing plate 6 is provided with a through hole 601.

[0022] Reference Figures 1-4 An exhaust gas inlet pipe 7 is fixedly connected to one side of the bottom of the exhaust gas sampling cylinder 1, and an exhaust gas outlet pipe 8 is fixedly connected to the other side of the bottom of the exhaust gas sampling cylinder 1. The exhaust gas outlet pipe 8 and the exhaust gas inlet pipe 7 are arranged symmetrically. The ends of the exhaust gas inlet pipe 7 and the exhaust gas outlet pipe 8 extend into the inner cavity of the exhaust gas sampling cylinder 1 and are parallel to the bottom of the inner cavity of the exhaust gas sampling cylinder 1. The inner diameter of the exhaust gas inlet pipe 7 and the exhaust gas outlet pipe 8 is the same as the inner diameter of the through hole 601.

[0023] Reference Figures 1-2 A piston plate 2 is slidably sleeved in the inner cavity of the exhaust gas sampling cylinder 1. A cover plate 4 is threaded on the outer top of the exhaust gas sampling cylinder 1. A base 9 is fixedly connected to the bottom end of the exhaust gas sampling cylinder 1. The base 9 is connected to the exhaust gas exhaust pipe 8 and the exhaust gas inlet pipe 7. The base 9 is used to support and fix the exhaust gas inlet pipe 7 and the exhaust gas exhaust pipe 8 to prevent the connection point between the exhaust gas inlet pipe 7 and the exhaust gas exhaust pipe 8 and the exhaust gas sampling cylinder 1 from being damaged by gravity and the weight of the pipe.

[0024] Reference Figures 1-2 The upper surface of the cover plate 4 is provided with a storage groove 3, and the inner cavity of the cover plate 4 is slidably connected with a pressing rod 5. The bottom end of the pressing rod 5 extends into the inner cavity of the exhaust gas sampling cylinder 1 and is threaded into the inside of the piston plate 2.

[0025] The top of the pressing rod 5 is equipped with a pressing plate, and the storage groove 3 is used to store the pressing plate. When not in use, the piston plate 2 is positioned in the inner cavity of the exhaust gas sampling cylinder 1 and in contact with the sealing plate 6, so that the pressing plate enters the inner cavity of the storage groove 3 for storage.

[0026] Reference Figures 1-2 The lower surface and side surface of the sealing plate 6 and the side surface of the piston plate 2 are provided with sealing rubber.

[0027] Two limiting blocks 10 are fixedly connected to the bottom of the exhaust gas sampling cylinder 1. A positioning block 11 is installed on one side of the limiting plate 603. The rotation angle of 605 can be limited by the cooperation of the positioning block 11 and the limiting block 10, so as to avoid inaccurate position of the through hole 601 during operation.

[0028] Working principle: When sampling industrial waste gas, connect the waste gas inlet pipe 7 to the waste gas pipeline or place it at the waste gas discharge position. Then, use your finger to push the rotating cap 604 to rotate, causing the rotating cap 604 to rotate, which in turn drives the rotating column 602, the limiting plate 603, and the sealing plate 6 to rotate, so that the positioning block 11 contacts the right-side limiting block 10. At this time, the through hole 601 coincides with the port of the waste gas inlet pipe 7. Pull the pressing rod 5 to move upward, and the piston plate 2 draws in air to generate negative pressure, which helps to draw the industrial waste gas into the inner cavity of the waste gas sampling cylinder 1 through the waste gas inlet pipe 7 for storage. When the piston plate 2 moves to the top of the inner cavity of the waste gas sampling cylinder 1, rotate the rotating cap 604 in the opposite direction, so that the positioning block 11 is located between the two limiting blocks 10, and the through hole 601 is misaligned with the port of the waste gas inlet pipe 7. At this time, the inner cavity of the waste gas sampling cylinder 1 can be sealed.

[0029] When the industrial waste gas stored in the inner cavity of the waste gas sampling cylinder 1 is discharged into the detection device, the rotating cap 604 is rotated so that the positioning block 11 is in contact with the limiting block 10 on the side near the waste gas exhaust pipe 8. At this time, the through hole 601 coincides with the port of the waste gas exhaust pipe 8. The pressing rod 5 is pressed down, which in turn presses down the piston plate 2. The industrial waste gas is pushed into the detection device through the through hole 601 and the waste gas exhaust pipe 8 by the pressure. The operation is simpler and more convenient, and it is easier for users to operate.

[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0031] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An industrial waste gas sampling device, comprising a waste gas sampling cylinder (1), characterized in that: The inner cavity of the exhaust gas sampling cylinder (1) is provided with a sealing assembly, which consists of a sealing plate (6), a through hole (601), a rotating column (602), a limiting plate (603), and a rotating cap (604). The sealing plate (6) is located at the bottom of the inner cavity of the exhaust gas sampling cylinder (1). The bottom of the sealing plate (6) is fixedly connected to the rotating column (602). The rotating column (602) penetrates the bottom of the exhaust gas sampling cylinder (1) and is fixedly connected to the limiting plate (603). The upper surface of the limiting plate (603) is in contact with the bottom of the exhaust gas sampling cylinder (1). The bottom end of the limiting plate (603) is fixedly connected to the rotating cap (604). The outer side of the rotating cap (604) is provided with multiple anti-slip ridges. The surface of the sealing plate (6) is provided with a through hole (601).

2. The waste gas sampling device for industrial waste gas detection according to claim 1, characterized in that: A waste gas inlet pipe (7) is fixedly connected to one side of the bottom of the waste gas sampling cylinder (1), and a waste gas exhaust pipe (8) is fixedly connected to the other side of the bottom of the waste gas sampling cylinder (1). The waste gas exhaust pipe (8) and the waste gas inlet pipe (7) are arranged symmetrically. The ends of the waste gas inlet pipe (7) and the waste gas exhaust pipe (8) extend into the inner cavity of the waste gas sampling cylinder (1) and are parallel to the bottom of the inner cavity of the waste gas sampling cylinder (1). The inner diameter of the waste gas inlet pipe (7) and the waste gas exhaust pipe (8) is the same as the inner diameter of the through hole (601).

3. The waste gas sampling device for industrial waste gas detection according to claim 1, characterized in that: The inner cavity of the exhaust gas sampling cylinder (1) is slidably fitted with a piston plate (2), the top outer side of the exhaust gas sampling cylinder (1) is threaded with a cover plate (4), and the bottom end of the exhaust gas sampling cylinder (1) is fixedly connected with a base (9).

4. The waste gas sampling device for industrial waste gas detection according to claim 3, characterized in that: The base (9) is connected to the exhaust pipe (8) and the exhaust inlet pipe (7).

5. The waste gas sampling device for industrial waste gas detection according to claim 3, characterized in that: The upper surface of the cover plate (4) is provided with a storage groove (3), and a pressing rod (5) is slidably connected to the inner cavity of the cover plate (4). The bottom end of the pressing rod (5) extends into the inner cavity of the exhaust gas sampling cylinder (1) and is threaded into the piston plate (2).

6. The waste gas sampling device for industrial waste gas detection according to claim 1, characterized in that: The lower surface and side surface of the sealing plate (6) and the side surface of the piston plate (2) are provided with sealing rubber.

7. The waste gas sampling device for industrial waste gas detection according to claim 1, characterized in that: The bottom of the exhaust gas sampling tube (1) is fixedly connected to two limiting blocks (10), and a positioning block (11) is installed on one side of the limiting plate (603).

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