Waste gas sampling device for waste gas monitoring equipment

Abstract

The utility model discloses a waste gas sampling device for waste gas monitoring equipment, and particularly relates to the technical field of waste gas sampling, the waste gas sampling device comprises a guide cylinder, a guide purification assembly is arranged on the guide cylinder, the guide purification assembly comprises a shunting cover arranged at the top of the guide cylinder, and a through hole is formed in the middle of the shunting cover in a penetrating manner; a backing ring is arranged at the bottom of the flow dividing cover and located at the top of the flow guide cylinder, and a filter is arranged at the top of the backing ring. By arranging the flow guide purification assembly, when the pressure intensity of airflow in a flow guide cylinder is small, a second baffle can block a cavity due to gravity, the phenomenon of waste gas backflow is avoided, waste gas can be discharged through a hose and can also be discharged after being filtered through a filter when being conveyed into a flow dividing cover, and the waste gas can be purified easily according to requirements. Whether the waste gas needs to be filtered or not is selected, and the diversity and convenience during waste gas sampling detection are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to exhaust gas sampling technical field more specifically, the utility model relates to a kind of exhaust gas sampling device for exhaust gas monitoring equipment. BACKGROUND

[0002] Exhaust gas monitoring equipment is used to detect and monitor the device of the exhaust emission of the exhaust gas generated in industrial production process, and the exhaust gas sampling device is an important component in the exhaust gas monitoring equipment, for collecting and providing exhaust gas sample for subsequent analysis and monitoring, common sampling principle includes adsorption method, suction method, purging method etc., exhaust gas sampling device can be sampled by direct contact, extraction, inhalation etc., usually including sampling head and sampling pipeline, target exhaust gas is sampled and detected, the treatment effect of exhaust gas treatment equipment can be obtained, and whether the treated exhaust gas meets the standard for discharge.

[0003] Among them, the patent with announcement number CN221959822U discloses a kind of exhaust gas sampling device for exhaust gas monitoring equipment, including support assembly;Still including sealing assembly, installation assembly, gas guide assembly, flow assembly and adsorption sampling assembly;

[0004] The structure when in use, by opening flow assembly, exhaust gas can be accelerated in gas guide assembly, then exhaust gas will enter support assembly and sealing assembly, is adsorbed and sampled by adsorption sampling assembly, when needing to disassemble adsorption structure and sampling structure, installation assembly is removed from the rear end of support assembly, adsorption sampling assembly can be quickly disassembled, but the structure when in use is not easy to split flow conveying for exhaust gas, causes the sampling performance of device when in use is relatively single. UTILITY MODEL CONTENT

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an exhaust gas sampling device for exhaust gas monitoring equipment, which aims to solve the problems raised in the above background art.

[0006] The utility model provides the following technical scheme: an exhaust gas sampling device for exhaust gas monitoring equipment, comprising a flow guide cylinder, a flow guide purification assembly is arranged on the flow guide cylinder;

[0007] The flow guide purification assembly comprises a split cover arranged at the top of the flow guide cylinder, a through hole is formed in the middle of the split cover, a grommet is arranged at the bottom of the split cover, the grommet is located at the top of the flow guide cylinder, and a filter is arranged at the top of the grommet.

[0008] The filter is located in the middle of the through hole, the filter is clamped with the through hole, the inner cavity top of the flow guide cylinder is provided with two first baffles, and the outer side of each first baffle extends to the inner wall of the flow guide cylinder, a cavity for airflow conveying is formed between the two first baffles, a second baffle is arranged in the cavity, a first supporting rod is inserted into each of the two first baffles, a second supporting rod is arranged in the middle of the second baffle, and the two ends of the first supporting rod and the second supporting rod extend to the flow guide cylinder, and the second baffle is rotationally connected with the second supporting rod.

[0009] It can be seen that in the above technical solution, when the waste gas is conveyed in the flow guide cylinder, the second baffle is rotated along the axis point of the connection between the second baffle and the second supporting rod under the traction force of the airflow conveying, so that the waste gas can be conveyed into the flow distribution cover, and when the airflow pressure in the flow guide cylinder is small, the second baffle can block the cavity due to gravity, avoiding the phenomenon of waste gas backflow.

[0010] Optionally, in a possible implementation, the inner cavity top of the through hole is provided with a sealing disc, the sealing disc is clamped with the flow distribution cover, a hose is inserted into the sealing disc, and the inner part of the flow guide cylinder is provided with a heat exchange rod.

[0011] It can be seen that in the above technical solution, the waste gas can be discharged through the hose, and can also be discharged after being filtered through the filter, so that whether the waste gas needs to be filtered can be selected according to the requirement, and the diversity and convenience of the waste gas sampling and detection are improved.

[0012] The technical effects and advantages of the utility model are as follows:

[0013] Compared with the prior art, by arranging the flow guide purification assembly on the flow guide cylinder, when the waste gas is conveyed in the flow guide cylinder, the second baffle is rotated along the axis point of the connection between the second baffle and the second supporting rod under the traction force of the airflow conveying, so that the waste gas can be conveyed into the flow distribution cover, and when the airflow pressure in the flow guide cylinder is small, the second baffle can block the cavity due to gravity, avoiding the phenomenon of waste gas backflow.

[0014] When the waste gas is conveyed into the flow distribution cover, the waste gas can be discharged through the hose, and can also be discharged after being filtered through the filter, so that whether the waste gas needs to be filtered can be selected according to the requirement, and the diversity and convenience of the waste gas sampling and detection are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present disclosure, the drawings needed to be used in some embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some drawings of the embodiments of the present disclosure, and all other drawings obtained by those of ordinary skill in the art based on these drawings also belong to the scope of protection of the present disclosure.

[0016] Figure 1 It is a front view of the overall structure of the present utility model.

[0017] Figure 2 It is a perspective view of the flow guide cylinder, the sealing disc, the first baffle, the second baffle and the hose of the present utility model.

[0018] Figure 3 It is a perspective view of the flow distribution cover, the gasket ring and the filter of the present utility model.

[0019] Figure 4 It is a sectional view of the overall structure of the present utility model.

[0020] The reference signs are as follows: 1, flow guide cylinder; 2, flow distribution cover; 3, through hole; 4, gasket ring; 5, filter; 6, first baffle; 7, second baffle; 8, first support rod; 9, second support rod; 10, sealing disc; 11, hose; 12, heat exchange rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, but not all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor also belong to the scope of protection of the present utility model.

[0022] As shown in the drawings, Figure 1 - Figure 4 The waste gas sampling device for the waste gas monitoring equipment is provided with a flow guide purification assembly on the flow guide cylinder 1. When the waste gas is conveyed in the flow guide cylinder 1, the second baffle 7 will rotate along the axis point of the connection between the second baffle 7 and the second support rod 9 due to the traction force of the airflow conveying, so that the waste gas can be conveyed into the flow distribution cover 2. When the airflow pressure in the flow guide cylinder 1 is small, the second baffle 7 will block the cavity due to the gravity, so as to avoid the phenomenon of waste gas backflow. When the waste gas is conveyed into the flow distribution cover 2, the waste gas can be discharged through the hose 11 and also discharged after being filtered by the filter 5. It is easy to select whether the waste gas needs to be filtered according to the requirement, so as to improve the diversity and convenience of the waste gas sampling and detection, and the specific structure of the assembly is set as follows.

[0023] The flow guide purification assembly comprises a flow distribution cover 2 arranged at the top of the flow guide cylinder 1, a through hole 3 is formed in the middle of the flow distribution cover 2, a gasket ring 4 is arranged at the bottom of the flow distribution cover 2, the gasket ring 4 is located at the top of the flow guide cylinder 1, and a filter 5 is arranged at the top of the gasket ring 4;

[0024] The filter 5 is located in the middle of the through hole 3 and is clamped with the through hole 3, two first baffles 6 are arranged at the top of the inner cavity of the flow guide cylinder 1, the outer sides of the first baffles 6 extend to the inner wall of the flow guide cylinder 1, a cavity for air flow conveying is formed between the two first baffles 6, a second baffle 7 is arranged in the cavity, a first supporting rod 8 is inserted into each of the two first baffles 6, a second supporting rod 9 is arranged in the middle of the second baffle 7, the two ends of the first supporting rod 8 and the second supporting rod 9 extend to the flow guide cylinder 1, and the second baffle 7 is rotationally connected with the second supporting rod 9.

[0025] A sealing disc 10 is arranged at the top of the inner cavity of the through hole 3, the sealing disc 10 is clamped with the flow distribution cover 2, a hose 11 is inserted into the sealing disc 10, and a heat exchange rod 12 is arranged in the flow guide cylinder 1.

[0026] According to the above structure, when in use, the workers install the device at the designated position, the waste gas is conveyed into the flow guide cylinder 1 through the pipe, heat exchange is performed on the waste gas by the heat exchange rod 12, the heat of the waste gas when being discharged is reduced, the second baffle 7 is rotated along the axial point of the connection position of the second baffle 7 and the second supporting rod 9 due to the traction force of the air flow conveying when the waste gas is conveyed in the flow guide cylinder 1, so that the waste gas can be conveyed into the flow distribution cover 2, and when the air flow pressure in the flow guide cylinder 1 is small, the second baffle 7 blocks the cavity due to gravity, so that the phenomenon of waste gas backflow is avoided;

[0027] When the waste gas is conveyed into the flow distribution cover 2, the waste gas can be discharged through the hose 11 and can also be discharged after being filtered through the filter 5, so it is easy to select whether the waste gas needs to be filtered according to the requirement, and the diversity and convenience of the waste gas sampling and detection are improved.

[0028] Different from the prior art, the waste gas sampling device for the waste gas monitoring equipment is disclosed, the second baffle 7 is rotated along the axial point of the connection position of the second baffle 7 and the second supporting rod 9 due to the traction force of the air flow conveying when the waste gas is conveyed in the flow guide cylinder 1, so that the waste gas can be conveyed into the flow distribution cover 2, and when the air flow pressure in the flow guide cylinder 1 is small, the second baffle 7 blocks the cavity due to gravity, so that the phenomenon of waste gas backflow is avoided, when the waste gas is conveyed into the flow distribution cover 2, the waste gas can be discharged through the hose 11 and can also be discharged after being filtered through the filter 5, so it is easy to select whether the waste gas needs to be filtered according to the requirement, and the diversity and convenience of the waste gas sampling and detection are improved.

[0029] The above are only preferred embodiments of the present application, and are not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An exhaust gas sampling device for an exhaust gas monitoring apparatus, comprising a flow guide tube (1), characterized in that: The flow guide cylinder (1) is provided with a flow guide purification assembly; The flow guide purification assembly comprises a flow distribution cover (2) arranged at the top of the flow guide cylinder (1), a through hole (3) is formed in the middle of the flow distribution cover (2), a gasket ring (4) is arranged at the bottom of the flow distribution cover (2), the gasket ring (4) is located at the top of the flow guide cylinder (1), and a filter (5) is arranged at the top of the gasket ring (4). The filter (5) is located in the middle of the through hole (3), and the filter (5) is clamped with the through hole (3).

2. The exhaust gas sampling device for an exhaust gas monitoring apparatus according to claim 1, characterized by: Two first baffles (6) are arranged at the top of the inner cavity of the flow guide cylinder (1), and the outer sides of the first baffles (6) extend to the inner wall of the flow guide cylinder (1).

3. The exhaust gas sampling device for an exhaust gas monitoring apparatus according to claim 2, characterized by: A cavity for air flow conveying is formed between the two first baffles (6), and a second baffle (7) is arranged in the cavity.

4. The exhaust gas sampling device for an exhaust gas monitoring apparatus according to claim 3, characterized by: First support rods (8) are inserted into the two first baffles (6), and a second support rod (9) is arranged in the middle of the second baffle (7).

5. The exhaust gas sampling device for an exhaust gas monitoring apparatus according to claim 4, characterized by: The two ends of the first support rod (8) and the second support rod (9) extend to the flow guide cylinder (1), and the second baffle (7) is rotationally connected with the second support rod (9).

6. The exhaust sampling device for an exhaust monitoring apparatus according to claim 1, characterized by: A sealing disc (10) is arranged at the top of the inner cavity of the through hole (3), and the sealing disc (10) is clamped with the flow distribution cover (2).

7. The exhaust gas sampling device for an exhaust monitoring apparatus according to claim 6, characterized by: A hose (11) is inserted into the sealing disc (10), and a heat exchange rod (12) is arranged in the flow guide cylinder (1).

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