A soot sampling device

Abstract

The application discloses a smoke dust sampling device and belongs to the technical field of environmental monitoring. Mainly including air inlet pipe, which is installed on the flue gas discharge pipe; air pipe, which is installed on the upper end of the air inlet pipe; multi-pass connecting pipe, which is installed on the lower end of the air pipe; connector, which has multiple, is respectively fixed on each outlet of the multi-pass connecting pipe; sampling tank, which has multiple, is respectively detachably installed on the lower end of each connector, including tank body, the inside of the tank body is provided with an elastic sealing assembly, and the connector extends into the inside of the tank body and pushes open the elastic sealing assembly. The smoke dust sampling device can realize continuous multiple sampling, improve sampling efficiency, automatically seal the sampling tank, effectively ensure that the sample is isolated from air before and after sampling, and ensure the accuracy of detection results.

Description

Technical Field

[0001] This application relates to the field of environmental monitoring technology, specifically to a smoke and dust sampling device. Background Technology

[0002] In industrial production processes, effective monitoring of flue gas emissions is a crucial part of the environmental protection system. To accurately assess and control the environmental impact of various pollutants, specialized flue gas sampling devices must be used. These devices are designed to collect representative gas samples from flue gas emission pipes. Subsequently, these samples are sent to laboratories for detailed component analysis and multi-pollutant concentration detection.

[0003] For example, the existing patent application number CN202120971295.2 discloses a low-concentration smoke sampler, including a sampling head, a delivery pipe, a collection chamber, an anti-backflow mechanism, a piston block, and a push rod. This device can effectively seal the gas inhaled into the collection chamber and effectively prevent the occurrence of gas backflow.

[0004] In actual operation, the device adopts a single-point, single-sampling method, which can only complete one independent data acquisition at a time. This makes it difficult to achieve continuous, multiple data acquisitions, resulting in low overall operating efficiency and making it difficult to meet the needs of continuous data acquisition in flue gas emissions.

[0005] Therefore, it is necessary to provide a smoke and dust sampling device to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0007] In view of the above-mentioned problems in the prior art, this application provides a dust sampling device that, by setting up a multi-port connecting pipe and multiple sampling containers, can achieve continuous multiple samplings. The sampling containers are automatically sealed to ensure sample integrity and prevent blockage of the sampling pipeline.

[0008] The technical solution adopted by this application to solve its technical problem is: a dust sampling device, installed on a flue gas emission pipe, comprising: The intake pipe is installed on the flue gas exhaust pipe; A vent pipe, which is installed at the upper end of the air inlet pipe; A multi-port connecting pipe is installed at the lower end of the vent pipe; The connector has multiple parts, each fixed to one of the outlets of the multi-port connecting pipe; The sampling canisters are multiple in number and are detachably installed at the lower end of each connector. Each canister includes a canister body and has an elastic sealing assembly inside. The connector extends into the canister body and pushes open the elastic sealing assembly.

[0009] Furthermore, the intake pipe includes a vertical pipe, the upper end of which is connected to the ventilation pipe, and the lower end of which is fixed with an inclined connecting pipe to the flue gas exhaust pipe.

[0010] Furthermore, the connector includes a tapered tube, the upper end of which is fixed to the lower end of a multi-port connecting tube, and an inner tube is fixedly connected to the lower end of the tapered tube. An outer tube is sleeved on the outside of the inner tube.

[0011] Furthermore, the upper end of the tank body is integrally formed with a tank opening, and a gap is left between the inner tube and the outer tube. The tank opening extends into the gap and is connected to the outer tube by a threaded connection. The lower end of the inner tube passes through the tank opening and extends into the interior of the tank body.

[0012] Furthermore, the elastic sealing assembly includes a connecting seat, which is fixed inside the tank body. A rotating head is rotatably connected inside the connecting seat. A sealing plate is fixedly connected to one end of the rotating head, and a torsion spring is sleeved on the outer end of the rotating head. One end of the torsion spring abuts against the sealing plate.

[0013] Furthermore, after the sampling can is detached from the connector, the sealing plate resets and completely covers the lower opening of the can. A sealing ring is fixedly embedded on the end face of the sealing plate facing the can opening. A sealing cap is connected to one side of the can body by a hanging rope, and the sealing cap can be fitted onto the can opening.

[0014] Furthermore, a main valve is installed at the outer end of the vent pipe, and a secondary valve is installed at each outlet port of the multi-port connecting pipe.

[0015] The beneficial effects of this application are as follows: The dust sampling device provided by this application can achieve continuous multiple sampling by setting up a multi-port connecting pipe and multiple sampling canisters, thereby improving sampling efficiency; the sampling canister is equipped with an elastic sealing component inside, which automatically opens when the connector is inserted and automatically seals when it is removed, effectively ensuring that the sample is isolated from the air before and after sampling, thus ensuring the accuracy of the test results.

[0016] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a dust sampling device according to this application; Figure 2 This is a schematic diagram of the connection structure of the sampling tank of a dust sampling device according to this application; Figure 3 This is a schematic diagram of the internal structure of the tank of a dust sampling device according to this application; Figure 4 for Figure 3 Enlarged view of point A in the middle; The following are the labeling elements in the figure: 1. Flue gas exhaust pipe; 2. Inlet pipe; 21. Vertical pipe; 22. Connecting pipe; 3. Ventilation pipe; 4. Multi-way connecting pipe; 5. Main valve; 6. Secondary valve; 7. Connector; 71. Conical pipe; 72. Inner pipe; 73. Outer pipe; 8. Sampling tank; 81. Tank body; 82. Tank opening; 83. Hanging rope; 84. Sealing cap; 85. Elastic sealing assembly; 851. Sealing plate; 852. Sealing ring; 853. Connecting seat; 854. Rotating head; 855. Torsion spring. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] like Figure 1-4 As shown, this application provides a flue gas sampling device, which is installed on a flue gas emission pipe 1 for collecting flue gas samples. The device includes an inlet pipe 2, a ventilation pipe 3, a multi-way connecting pipe 4, a connector 7, and a sampling tank 8.

[0021] The intake pipe 2 is installed on the flue gas exhaust pipe 1. The intake pipe 2 includes a vertical pipe 21. The upper end of the vertical pipe 21 is connected to the ventilation pipe 3, and the lower end is fixed with an inclined connecting pipe 22 between it and the flue gas exhaust pipe 1.

[0022] Ventilation pipe 3 is installed at the upper end of the vertical pipe 21 of the air inlet pipe 2, and a main valve 5 is installed at its outer end to control the flue gas flow of the entire sampling device. Multi-way connecting pipe 4 is installed at the lower end of ventilation pipe 3. In this embodiment, a three-way connecting pipe is used, which has three outlets. Each outlet is equipped with a secondary valve 6 to independently control the flow of each branch.

[0023] There are three connectors 7, which are fixed to the three outlets of the multi-port connecting pipe 4 respectively. The connector 7 includes a tapered pipe 71. The upper end of the tapered pipe 71 is fixed to the lower end of the multi-port connecting pipe 4 by welding. The lower end of the tapered pipe 71 is fixedly connected to an inner pipe 72. An outer pipe 73 is sleeved on the outside of the inner pipe 72. A gap is left between the inner pipe 72 and the outer pipe 73.

[0024] There are three sampling canisters 8, which are detachably installed at the lower end of each connector 7. The sampling canister 8 includes a canister body 81. The upper end of the canister body 81 is integrally formed with a canister opening 82. During installation, the canister opening 82 extends into the gap between the inner tube 72 and the outer tube 73 and is threadedly connected to the outer tube 73 to realize the detachable connection between the sampling canister 8 and the connector 7. The lower end of the inner tube 72 passes through the canister opening 82 and extends into the interior of the canister body 81 to guide the flue gas into the canister body.

[0025] The tank body 81 is equipped with an elastic sealing assembly 85. The elastic sealing assembly 85 includes a connecting seat 853, which is fixed to the bottom surface of the tank body 81. A rotating head 854 is rotatably connected to the inside of the connecting seat 853 via a bearing. A sealing plate 851 is fixedly connected to one end of the rotating head 854. A torsion spring 855 is sleeved on the outer end of the rotating head 854. One end of the torsion spring 855 abuts against the sealing plate 851 to provide a restoring torque for the sealing plate 851.

[0026] When the sampling canister 8 is not installed, under the action of the torsion spring 855, the sealing plate 851 is in a horizontal position, completely covering the lower opening of the canister opening 82. The sealing plate 851 is fixedly embedded with a sealing ring 852 facing the end face of the canister opening 82 to ensure the sealing effect. When the sampling canister 8 is installed on the connector 7, the inner tube 72 presses the sealing plate 851 downward, causing it to rotate around the rotating head 854, opening the channel below the canister opening 82, and the flue gas can enter the canister body 81 through the inner tube 72.

[0027] A sealing cap 84 is connected to one side of the can body 81 via a hanging rope 83. After sampling is completed, the sampling can 8 is unscrewed from the connector 7. The sealing plate 851 automatically resets under the action of the torsion spring 855, sealing the can opening 82. Then, the sealing cap 84 is fitted onto the can opening 82 to achieve double sealing, ensuring that the sample will not leak or be contaminated during transportation and storage.

[0028] Working principle: During sampling, open the main valve 5 and the auxiliary valve 6 on the branch line to be sampled.

[0029] The flue gas enters the vertical pipe 21 from the flue gas emission pipe 1 through the connecting pipe 22, and then enters the designated sampling tank 8 through the vent pipe 3, the multi-way connecting pipe 4 and the connector 7.

[0030] Once the first sampling tank has completed sampling, close the corresponding secondary valve 6 and open another secondary valve 6 to perform a second sampling, thus enabling continuous multiple samplings.

[0031] After sampling is completed, close the main valve 5 and all auxiliary valves 6, unscrew the sampling can 8 from the connector 7, the sealing plate 851 will automatically reset and close the can opening, then put on the sealing cover 84, and the sampling can can be sent for testing.

[0032] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A smoke and dust sampling device, installed on a flue gas emission pipe (1), characterized in that, include: The intake pipe (2) is installed on the flue gas exhaust pipe (1); Ventilation pipe (3), which is installed at the upper end of the air inlet pipe (2); A multi-port connecting pipe (4) is installed at the lower end of the vent pipe (3); The connector (7) has multiple parts, which are respectively fixed on each outlet of the multi-port connector (4); The sampling tank (8) has multiple components, each detachably installed at the lower end of a connector (7), and includes a tank body (81). The tank body (81) is provided with an elastic sealing component (85). The connector (7) extends into the tank body (81) and pushes open the elastic sealing component (85).

2. The smoke and dust sampling device according to claim 1, characterized in that, The intake pipe (2) includes a vertical pipe (21), the upper end of which is connected to the ventilation pipe (3), and the lower end of which is fixed with an inclined connecting pipe (22) between it and the flue gas discharge pipe (1).

3. The smoke and dust sampling device according to claim 1, characterized in that, The connector (7) includes a tapered tube (71), the upper end of which is fixed to the lower end of the multi-way connector (4), and the lower end of the tapered tube (71) is fixedly connected to an inner tube (72), and an outer tube (73) is sleeved on the outside of the inner tube (72).

4. The smoke and dust sampling device according to claim 3, characterized in that, The upper end of the tank body (81) is integrally formed with a tank opening (82). There is a gap between the inner tube (72) and the outer tube (73). The tank opening (82) extends into the gap and is connected to the outer tube (73) by a thread. The lower end of the inner tube (72) passes through the tank opening (82) and extends into the inside of the tank body (81).

5. A smoke and dust sampling device according to claim 1, characterized in that, The elastic sealing assembly (85) includes a connecting seat (853), which is fixed inside the tank body (81). A rotating head (854) is rotatably connected inside the connecting seat (853). A sealing plate (851) is fixedly connected to one end of the rotating head (854). A torsion spring (855) is sleeved on the outer end of the rotating head (854). One end of the torsion spring (855) abuts against the sealing plate (851).

6. A smoke and dust sampling device according to claim 5, characterized in that, After the sampling can (8) is separated from the connector (7), the sealing plate (851) is reset and completely covers the lower opening of the can opening (82). The sealing plate (851) is fixedly embedded with a sealing ring (852) on the end face facing the can opening (82). A sealing cover (84) is connected to one side of the can body (81) by a hanging rope (83). The sealing cover (84) can be sleeved with the can opening (82).

7. A smoke and dust sampling device according to claim 1, characterized in that, The outer end of the vent pipe (3) is equipped with a main valve (5), and each outlet of the multi-way connecting pipe (4) is equipped with a secondary valve (6).

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