Method and device for sampling and cooling high-temperature flue gas of thermal power plant

Abstract

The invention relates to a thermal power plant high temperature flue gas sampling and cooling device and method.The device comprises a clamping block, a collecting barrel, a telescopic hose, a storage barrel and an adjusting baffle, the left end of the clamping block is fixedly connected with fixing blocks, a fastening bolt is fixedly connected between the fixing blocks, the outer surface of the collecting barrel is fixedly connected with an electric cooling pipe, and the electric cooling pipe is fixedly connected with the collecting barrel. The outer surface of the electric cooling pipe is mounted and connected to the inner wall of the protective mounting shell, the telescopic hose communicates with and is mounted at the upper end of the collecting barrel through a connecting steering pipe, a mounting block is fixedly connected to the left end of the collecting barrel, the storage barrel is mounted and connected to the lower end of the collecting barrel, and a discharging valve is fixedly connected to the lower end of the storage barrel. The adjusting baffle is fixedly connected to the inner wall of the collecting barrel. According to the cooling device for high-temperature flue gas sampling of the thermal power plant, flue gas is conveniently sampled and cooled at the same time, meanwhile, flue gas protection treatment is also conveniently carried out, leakage is avoided, and multi-point sampling treatment is conveniently carried out.

Description

Technical Field

[0001] The invention relates to a detection auxiliary tool used in a thermal power plant, in particular to a method and a device for multi-point sampling of high-temperature flue gas in a thermal power plant and cooling the flue gas while sampling. Background Art

[0002] During the operation of thermal power plant units, in order to accurately reflect the quality of steam, prevent damage to equipment caused by insufficient steam purity, and ensure that the working fluid meets the design requirements, it is necessary to design and install several steam sampling devices on the alloy steel pipelines of the thermal power plant to monitor the state of the working fluid in real time and ensure the safe operation of the unit; With reference to the Chinese patent authorization announcement number CN211627108U, the authorization announcement date is 2020.10.02, which discloses a flue gas sampling device for a thermal power plant. The invention is provided with a heat-insulating cotton wall and a first sealing pad. The flue gas enters the interior of the sampling device body and is absorbed by the heat-insulating cotton wall, thereby preheating the interior of the sampling device body to avoid a large difference between the flue gas temperature and the temperature inside the sampling device body. By providing a sealing mechanism and a fixing mechanism, when the flue gas is sucked into the interior of the sampling device body and needs to be introduced into the storage device, the connecting pipe is connected to the flue pipe through the fixing mechanism, and the other end of the connecting pipe is connected to the sampling collection box; However, this invention is not convenient for cooling the flue gas while sampling it, nor is it convenient for protecting the flue gas to avoid leakage, and it is not convenient for multi-point sampling. Summary of the invention

[0003] The purpose of the present invention is to provide a cooling device for high-temperature flue gas sampling in a thermal power plant to solve the problems raised in the above background technology that it is inconvenient to perform cooling treatment while sampling the flue gas, it is also inconvenient to perform flue gas protection treatment to avoid leakage, and it is inconvenient to perform multi-point sampling treatment.

[0004] To achieve the above object, the present invention provides the following technical solution: A cooling device for high-temperature flue gas sampling in a thermal power plant, comprising a clamping block, a fixed block is fixedly connected to the left end of the clamping block, and a fastening bolt is fixedly connected between the fixed blocks; A collecting barrel, the outer surface of which is fixedly connected with an electric cooling tube, and the outer surface of the electric cooling tube is mounted and connected to the inner wall of the protective mounting shell; It also includes: a telescopic hose, which is connected to the steering pipe and installed on the upper end of the collection bucket, and the left end of the collection bucket is fixedly connected with a mounting block; A storage bucket, wherein the storage bucket is installed and connected to the lower end of the collecting bucket, and a material discharge valve is fixedly connected to the lower end of the storage bucket; An adjusting baffle is fixedly connected to the inner wall of the collecting barrel, and the upper end of the collecting barrel is fixedly connected to a connecting steering tube.

[0005] Preferably, the clamping blocks are installed and connected via a mounting block, and the clamping blocks form a circular ring structure.

[0006] Preferably, the electric cooling tubes are arranged at multiple angles on the inner wall of the protective mounting shell, and a hollow structure is formed between the protective mounting shell and the collecting barrel, and a storage barrel with a funnel-shaped structure is integrally and fixedly connected to the lower end of the collecting barrel.

[0007] Preferably, the mounting block has a "concave" center structure, and the mounting block and the clamping block are rotationally connected, and the clamping block is symmetrically arranged front and back about the center axis of the mounting block.

[0008] Preferably, the right end of the telescopic hose is fixedly connected to a collecting head via a flange, and the right end of the collecting head is integrally connected to a through head, and a fixing block is installed and connected to the outer surface of the through head, and a rubber pad is tightly fitted to the right side wall of the fixing block.

[0009] Preferably, the adjusting baffle is arranged obliquely on the inner wall of the collecting barrel, and the length of the adjusting baffle is smaller than the length of the cross section of the collecting barrel.

[0010] The device described is a method for cooling while sampling. When using the cooling device for high-temperature flue gas sampling in a thermal power plant, the clamping block is first fitted to the outer surface of the flue, and the clamping block is fixed by a fixed connection between the fixing block and the fastening bolt. Multiple clamping blocks are clamped and installed on the outer surface of the flue as needed for multi-point inspection and processing. Then, the penetration head is penetrated through the side wall opening of the flue, and the fixing block is fixed to the flue by bolts. The outer surface of the penetration head is fixedly connected with a rubber pad, which is convenient for close fitting to the flue and avoiding the problem of flue gas leakage. The electric cooling tube is used for sufficient and uniform heat dissipation and cooling. The lower end of the collecting barrel is threadedly connected with a discharge valve. Beneficial Effects

[0011] The cooling device for high-temperature flue gas sampling in the thermal power plant is convenient for cooling the flue gas while sampling, and is also convenient for flue gas protection treatment to avoid leakage, and is convenient for multi-point sampling treatment; 1. An electric cooling pipe and a collection barrel are provided. The electric cooling pipe is arranged at equal angles on the inner wall of the protective installation shell, so as to facilitate the full and uniform heat dissipation of the flue gas collected inside the collection barrel, and also facilitate the collection and treatment of the flue gas to avoid diffusion and affect the use; 2. A clamping block and a mounting block are provided. The clamping block is rotatably connected inside the mounting block, so that it is convenient to clamp and fix at different heights of the flue, and then it is convenient to collect and sample the flue gas at different positions, which is convenient for use; 3. An adjusting baffle and a discharge valve are provided. The adjusting baffle is tilted inside the collecting barrel to facilitate the buffering of the flue gas and avoid direct falling, so as to facilitate sufficient heat dissipation and cooling treatment and facilitate use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the top view structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the collecting barrel of the present invention; Figure 3 For the present invention Figure 1 The enlarged structural diagram at A in the middle; Figure 4 It is a schematic diagram of the front cross-sectional structure of the collecting barrel of the present invention.

[0013] In the figure: 1. Clamping block; 2. Fixing block; 3. Fastening bolt; 4. Mounting block; 5. Collecting bucket; 6. Electric cooling pipe; 7. Protective mounting shell; 8. Telescopic hose; 9. Connecting steering tube; 10. Collecting head; 11. Fixing block; 12. Rubber pad; 13. Through head; 14. Adjusting baffle; 15. Unloading valve; 16. Storage bucket. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1-4 The present invention provides a technical solution: a cooling device for high-temperature flue gas sampling in a thermal power plant, comprising a clamping block 1, a fixing block 2, a fastening bolt 3, a mounting block 4, a collecting bucket 5, an electric cooling pipe 6, a protective mounting shell 7, a telescopic hose 8, a connecting steering pipe 9, a collecting head 10, a fixing block 11, a rubber pad 12, a penetration head 13, an adjusting baffle 14, a discharge valve 15 and a storage bucket 16.

[0016] When using the cooling device for high temperature flue gas sampling in the thermal power plant, first combine Figure 1 , Figure 2 and Figure 3 As shown, the clamping block 1 is attached to the outer surface of the flue, and the clamping block 1 is fixed by the fixing block 2 and the fastening bolt 3, so that the clamping block 1 is conveniently installed and connected to the outer surface of the flue. Multiple clamping blocks 1 are clamped and installed on the outer surface of the flue as needed for multi-point inspection and processing, so as to facilitate the collection of flue gas at different positions; Then, the penetration head 13 is passed through the opening of the side wall of the flue, and the fixing block 11 is fixed to the flue by bolts. The outer surface of the penetration head 13 is fixedly connected with a rubber pad 12, which is convenient for tightly fitting the flue, avoiding the problem of smoke leakage, and is convenient for use; Combination Figure 1 , Figure 2 and Figure 4 As shown, the interior of the collecting barrel 5 is fixedly connected with an adjusting baffle 14, so as to facilitate the buffering treatment of the collected flue gas and facilitate the use of the electric cooling tube 6 for sufficient and uniform heat dissipation and cooling treatment, which is convenient for use. At the same time, the lower end of the collecting barrel 5 is threadedly connected with a discharge valve 15, so as to facilitate the discharge and collection treatment of the collected and sampled flue gas, which is convenient for use.

[0017] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling device for high-temperature flue gas sampling in a thermal power plant, comprising a clamping block (1), the left end of the clamping block (1) being fixedly connected to a fixing block (2), and a fastening bolt (3) being fixedly connected between the fixing blocks (2); a collecting bucket (5), the outer surface of the collecting bucket (5) being fixedly connected to an electric cooling pipe (6), and the outer surface of the electric cooling pipe (6) being mounted and connected to the inner wall of a protective mounting shell (7); characterized in that: Its composition also includes: A telescopic hose (8), the telescopic hose (8) being connected to and mounted on the upper end of the collecting bucket (5) via a connecting steering tube (9), and a mounting block (4) being fixedly connected to the left end of the collecting bucket (5); A storage bucket (16), the storage bucket (16) being mounted and connected to the lower end of the collection bucket (5), and a discharge valve (15) being fixedly connected to the lower end of the storage bucket (16); An adjusting baffle (14) is fixedly connected to the inner wall of the collecting barrel (5), and the upper end of the collecting barrel (5) is fixedly connected to a connecting steering tube (9).

2. The cooling device for high temperature flue gas sampling in a thermal power plant according to claim 1, characterized in that: The clamping blocks (1) and the clamping blocks (1) are mounted and connected via a mounting block (4), and the clamping blocks (1) and the clamping blocks (1) form a circular ring structure.

3. The cooling device for high temperature flue gas sampling in a thermal power plant according to claim 1, characterized in that: The electric cooling tube (6) is arranged at multiple angles on the inner wall of the protective installation shell (7), and a hollow structure is formed between the protective installation shell (7) and the collection barrel (5), and a storage barrel (16) having a funnel-shaped structure is integrally fixedly connected to the lower end of the collection barrel (5).

4. The cooling device for high temperature flue gas sampling in a thermal power plant according to claim 1, characterized in that: The mounting block (4) has a "concave" center structure, the mounting block (4) and the clamping block (1) are rotationally connected, and the clamping block (1) is arranged symmetrically front and back about the center axis of the mounting block (4).

5. The cooling device for high temperature flue gas sampling in a thermal power plant according to claim 1, characterized in that: The right end of the telescopic hose (8) is fixedly connected to a collecting head (10) via a flange, and the right end of the collecting head (10) is integrally connected to a through-head (13), and a fixing block (11) is mounted on the outer surface of the through-head (13), and a rubber pad (12) is tightly fitted to the right side wall of the fixing block (11).

6. The cooling device for high temperature flue gas sampling in a thermal power plant according to claim 1, characterized in that: The adjusting baffle (14) is arranged obliquely on the inner wall of the collecting barrel (5), and the length of the adjusting baffle (14) is smaller than the length of the cross section of the collecting barrel (5).

7. A method for cooling the device according to any one of claims 1 to 7 while sampling, characterized in that: When using the cooling device for high-temperature flue gas sampling in the thermal power plant, first, the clamping block is attached to the outer surface of the flue, and the clamping block is fixed by the fixed connection between the fixing block and the fastening bolt. Multiple clamping blocks are clamped and installed on the outer surface of the flue as needed for multi-point inspection and processing. Then, the penetration head is penetrated through the side wall opening of the flue, and the fixing block is fixed to the flue by bolts. The outer surface of the penetration head is fixedly connected with a rubber pad to facilitate close fitting of the flue and avoid the problem of flue gas leakage. The electric cooling tube is used for sufficient and uniform heat dissipation and cooling treatment, and the lower end of the collecting barrel is threadedly connected with a discharge valve.

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