Double-end flue gas sampling device

Abstract

The utility model discloses a double-end flue gas sampling device which comprises a sampling box body, sampling pipes are fixedly installed on the two sides of the side wall of the sampling box body, the top ends of the two sampling pipes are fixedly connected with connecting discs, the tops of the connecting discs are provided with filtering discs, the tops of the connecting discs are in threaded connection with air expanding openings, and the air expanding openings are communicated with the sampling box body. An air expanding opening is formed in the sampling box body, the air expanding opening, the filtering disc and the sampling pipe are communicated, a dust filtering net is fixedly mounted on the inner wall of the filtering disc, a lifting mechanism is arranged on the side wall of the sampling box body, and the sampling pipe is connected with the lifting mechanism through the sampling box body; when flue gas is sampled through the sampling pipe, solid particles in the flue gas are filtered through the filtering disc mounted on the connecting disc between the sampling pipe and the expanded air port, so that the solid particles are prevented from entering the sampling pipe, being combined with water vapor and adhered to the pipe wall of the sampling pipe, and the filtering disc is blocked after long-term use; and the filter disc can be replaced by dismounting the air expansion port.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke sampling, in particular to a double-head smoke sampling device. Background Art

[0002] The background technology of the double-head flue gas sampling device is mainly developed based on the needs of environmental protection and industrial production monitoring. In the fields of electricity, chemical industry, metallurgy, environmental protection, etc., the monitoring and control of harmful substances in flue gas is very important. These harmful substances such as VOC, NH3, HCl, HF, H2S, SO2, NOx, etc. may have serious impacts on the environment and human health. Therefore, accurate and rapid monitoring of harmful substances in flue gas has become an important demand for the development of the industry.

[0003] The double-ended flue gas sampling device is designed to meet this demand. It uses advanced adsorption, capture, and suction processes to effectively extract harmful substances from flue gas and determine their concentrations through chemical analysis. The characteristic of this device is its double-ended design, which can collect two flue gas samples at the same time, improving sampling efficiency and accuracy.

[0004] Background technology of the double-ended flue gas sampling device is an efficient and accurate flue gas sampling technology developed based on the needs of environmental protection and industrial production monitoring. With the improvement of environmental awareness and the development of industrial production, this technology will continue to be widely used and promoted.

[0005] In the existing double-ended flue gas sampling device, in order to prevent solid particles in the flue gas from entering the sampling device when sampling the flue gas, a filtering mechanism is usually set at the connection between the sampling tube and the sampling device. When the flue gas enters the sampling tube, it adheres to the inner wall of the sampling tube under the action of water vapor, which makes the cleaning of the sampling tube more complicated, increasing the difficulty of cleaning the device. Utility Model Content

[0006] The purpose of the present invention is to provide a double-ended smoke sampling device to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a double-head flue gas sampling device, including a sampling box body, sampling tubes are fixedly installed on both sides of the side walls of the sampling box, the tops of the two sampling tubes are fixedly connected with connecting plates, the top of the connecting plate is provided with a filter plate, the top of the connecting plate is threadedly connected with an air expansion port, the air expansion port, the filter plate and the sampling tube are connected, a dust filter is fixedly installed on the inner wall of the filter plate, a lifting mechanism is provided on the side wall of the sampling box body, and the sampling tube is connected to the lifting mechanism through the sampling box body.

[0008] As a further description of the above technical solution: two slide grooves are provided on the side walls of the filter plate, and a notch is provided at one end of the two slide grooves; a card block is fixedly installed on the inside of the connecting plate, and the card block is adapted to the notch and the slide groove; locking rods are slidably provided on both sides of the top of the connecting plate, and connecting plates are fixedly installed on the two side walls of the locking rod; the locking rod and the connecting plate are both slidably connected to the inside of the filter plate, and a spring is fixedly installed on the bottom of the connecting plate, and the lower end of the spring is fixedly connected to the inside of the filter plate; a slot is provided at the bottom of the inner wall of the connecting plate, and the locking rod is adapted to the slot.

[0009] As a further description of the above technical solution: the filter screen on the filter disc is provided with three layers.

[0010] As a further description of the above technical solution: grooves are provided on both sides of the top of the filter disc.

[0011] As a further description of the above technical solution: a support column is slidably connected to the side wall of the sampling box body, a motor is fixedly installed on the bottom of the sampling box body, the output end of the motor passes through the sampling box body and is fixedly connected to an adjusting screw, the adjusting screw is threadedly connected to the support column, a connecting rod is fixedly installed on the top of the support column, and both ends of the connecting rod are fixedly installed with clamping rings, and the clamping ring is adapted to the sampling tube.

[0012] As a further description of the above technical solution: a base is fixedly installed at the bottom of the sampling box body, and rollers are rotatably installed at the four corners of the bottom of the base.

[0013] The utility model provides a double-head flue gas sampling device, which has the following beneficial effects: the utility model prevents dust from adhering to the inner wall of the sampling tube and avoids frequent cleaning of the sampling tube by arranging a detachable and replaceable filter disc at the front end of the sampling tube.

[0014] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0015] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a double-ended smoke sampling device proposed by the utility model;

[0017] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the three-dimensional unfolded structure of the air expansion port and the connecting plate of the utility model;

[0020] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0021] Legend:

[0022] 1. Sampling box body; 2. Sampling tube; 3. Connecting plate; 4. Filter plate; 5. Air vent; 6. Slide groove; 7. Notch; 8. Block; 9. Dust filter; 10. Locking rod; 11. Connecting plate; 12. Spring; 13. Groove; 14. Slot; 15. Support column; 16. Adjusting screw; 17. Connecting rod; 18. Snap ring; 19. Motor; 20. Base; 21. Roller. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1 , a double-ended flue gas sampling device comprises a sampling box body 1, sampling tubes 2 are fixedly installed on both sides of the side walls of the sampling box, and the tops of the two sampling tubes 2 are fixedly connected with connecting plates 3, and the top of the connecting plate 3 is provided with a filter plate 4, and the top of the connecting plate 3 is threadedly connected with an air diffuser 5, and the air diffuser 5, the filter plate 4 and the sampling tube 2 are connected. A dust filter 9 is fixedly installed on the inner wall of the filter plate 4, and a lifting mechanism is provided on the side wall of the sampling box body 1, and the sampling tube 2 is connected to the lifting mechanism through the sampling box body 1; when the flue gas is sampled through the sampling tube 2, the solid particles in the flue gas are filtered through the filter plate 4 installed on the connecting plate 3 between the sampling tube 2 and the air diffuser 5, so as to prevent the solid particles from entering the interior of the sampling tube 2 and combining with water vapor to adhere to the tube wall of the sampling tube 2. After long-term use, the filter plate 4 is blocked and can be replaced by disassembling the air diffuser 5.

[0025] As a preferred technical solution of this embodiment, two slide grooves 6 are provided on the side wall of the filter disc 4, and a notch 7 is provided at one end of the two slide grooves 6. A clamping block 8 is fixedly installed on the inside of the connecting disc 3, and the clamping block 8 is adapted to the notch 7 and the slide groove 6. Locking rods 10 are slidably provided on both sides of the top of the connecting disc 3, and connecting plates 11 are fixedly installed on the two side walls of the locking rod 10. The locking rod 10 and the connecting plate 11 are both slidably connected to the inside of the filter disc 4, and a spring 12 is fixedly installed at the bottom of the connecting plate 11, and the lower end of the spring 12 is fixedly installed with the inner end of the filter disc 4. The connection plate 3 is fixedly connected, and a slot 14 is provided at the bottom of the inner wall of the connection plate 3, and the locking rod 10 is adapted to the slot 14; when installing and replacing the filter plate 4, it is necessary to rotate the filter plate 4 so that the notch 7 of the slide groove 6 is aligned with the block 8, and the filter plate 4 can be disassembled. After the filter plate 4 is installed, the air expansion port 5 is tightened on the connection plate 3, and the bottom of the air expansion port 5 squeezes the locking rod 10, and the locking rod 10 is pressed into the slot 14 to fix the installation position of the filter plate 4. After the air expansion port 5 is removed, the locking rod 10 is ejected by the spring 12, and the filter plate 4 is no longer locked and can be removed.

[0026] As a preferred technical solution of this embodiment, the filter screen on the filter disc 4 is provided with three layers; the flue gas is filtered through the front two layers of filter screen, and a desiccant is added between the back two layers of filter screen to absorb the water vapor in the flue gas, thereby reducing the water vapor inside the sampling tube 2 and keeping the inside of the sampling tube 2 dry.

[0027] As a preferred technical solution of this embodiment, grooves 13 are provided on both sides of the top of the filter disc 4; the grooves 13 provided on both sides provide a fulcrum for the filter disc 4, making it more convenient to disassemble the filter disc 4.

[0028] As the preferred technical solution of this embodiment, a support column 15 is slidably connected to the side wall of the sampling box body 1, and a motor 19 is fixedly installed at the bottom of the sampling box body 1. The output end of the motor 19 passes through the sampling box body 1 and is fixedly connected to an adjusting screw 16. The adjusting screw 16 is threadedly connected to the support column 15. A connecting rod 17 is fixedly installed on the top of the support column 15. Both ends of the connecting rod 17 are fixedly installed with a clamping ring 18, and the clamping ring 18 is adapted to the sampling tube 2; the sampling tube 2 is clamped and supported by the clamping ring 18. When the sampling height is changed, the motor 19 is turned on, and the adjusting screw 16 rotates driven by the motor 19, so that the support column 15 threadedly connected to the adjusting screw 16 slides and rises along the side wall of the sampling box body 1, thereby changing the sampling height of the sampling tube 2.

[0029] As the preferred technical solution of this embodiment, a base 20 is fixedly installed at the bottom of the sampling box body 1, and rollers 21 are rotatably installed at the four corners of the bottom of the base 20; the sampling box body 1 is supported by the base 20, and the device is conveniently moved by the rollers 21.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-ended smoke sampling device, comprising a sampling box body (1), characterized in that: Sampling tubes (2) are fixedly mounted on both sides of the side walls of the sampling box, and the top ends of the two sampling tubes (2) are fixedly connected to a connecting plate (3), and a filter plate (4) is arranged on the top of the connecting plate (3). An air diffuser (5) is threadedly connected to the top of the connecting plate (3), and the air diffuser (5), the filter plate (4) and the sampling tubes (2) are connected, and a dust filter (9) is fixedly mounted on the inner wall of the filter plate (4). A lifting mechanism is arranged on the side wall of the sampling box body (1), and the sampling tubes (2) are connected to the lifting mechanism through the sampling box body (1).

2. A double-ended smoke sampling device according to claim 1, characterized in that: Two slide grooves (6) are provided on the side wall of the filter disc (4), and a notch (7) is provided at one end of the two slide grooves (6). A clamping block (8) is fixedly installed on the inside of the connecting disc (3), and the clamping block (8) is adapted to the notch (7) and the slide groove (6). Locking rods (10) are slidably provided on both sides of the top of the connecting disc (3), and connecting plates (11) are fixedly installed on the two side walls of the locking rod (10). The locking rod (10) and the connecting plate (11) are both slidably connected to the inside of the filter disc (4). A spring (12) is fixedly installed at the bottom of the connecting plate (11), and the lower end of the spring (12) is fixedly connected to the inside of the filter disc (4). A slot (14) is provided at the bottom of the inner wall of the connecting disc (3), and the locking rod (10) is adapted to the slot (14).

3. A double-ended smoke sampling device according to claim 2, characterized in that: The filter screen on the filter disc (4) is provided with three layers.

4. A double-ended smoke sampling device according to claim 2, characterized in that: Grooves (13) are provided on both sides of the top of the filter disc (4).

5. A double-ended smoke sampling device according to claim 4, characterized in that: A support column (15) is slidably connected to the side wall of the sampling box body (1), and a motor (19) is fixedly installed at the bottom of the sampling box body (1). The output end of the motor (19) passes through the sampling box body (1) and is fixedly connected to an adjusting screw (16). The adjusting screw (16) is threadedly connected to the support column (15). A connecting rod (17) is fixedly installed at the top of the support column (15). Both ends of the connecting rod (17) are fixedly installed with a clamping ring (18), and the clamping ring (18) is compatible with the sampling tube (2).

6. A double-ended smoke sampling device according to claim 4, characterized in that: A base (20) is fixedly mounted on the bottom of the sampling box body (1), and rollers (21) are rotatably mounted on the four corners of the bottom of the base (20).

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