CN205449588U - Boiler retractable flue gas sampling device - Google Patents

Abstract

A telescopic flue gas sampling device for a boiler, the device includes a sampling pipe body, a pipe body joint, a pagoda joint and a pipe seat. The sampling pipe body is connected along the length direction by pipe joints. The length of each section of the pipe body is equal, and each section of pipe is equipped with a pipe hole of the same aperture; each section of pipe on the pipe body can be disassembled through the pipe joint. , so as to achieve the length of the telescopic pipe, which is convenient for testing different sizes of flue. The end connected to the sampling pipe body is installed on the pipe seat, and the other end of the pipe seat is connected to the pagoda joint, which is convenient for connecting the silicone tube; the pipe seat is matched with the on-site flue gas sampling measuring hole, so as to realize the sealing of the measuring point and prevent air leakage It leads to the distortion of flue gas sampling, which greatly improves the measurement efficiency, and the operation is simple and convenient. The utility model is suitable for boiler flue gas collection and sampling.

Description

A telescopic flue gas sampling device for a boiler

technical field

The utility model relates to a telescopic flue gas sampling device for a boiler, which belongs to the technical field of flue gas collection and processing.

Background technique

In power plant boiler tests, calculations of boiler thermal efficiency, denitrification efficiency, air preheater air leakage, and mercury removal efficiency are all inseparable from the measurement and analysis of flue gas components. In the context of my country's increasingly stringent requirements for environmental protection, the measurement of flue gas components can perform qualitative or quantitative analysis of the pollutant components in boiler flue gas, so as to effectively optimize the combustion of boilers to achieve optimal operation, energy saving and emission reduction the goal of.

The flue ducts of modern large-scale power plant boilers are relatively large and vary in size. On the cross-section of the flowing flue gas, the flue gas distribution is uneven. Therefore, the grid method is often used for flue gas sampling. For the measurement of flue gas composition of power plant boilers, a single thin iron pipe is often used, with only two ends open, one end inserted into the flue, and the other end connected to the flue gas analyzer. During the measurement, the sampling pipe is gradually pulled out according to a certain length, Measure a set of data at each point to achieve the goal of the entire section grid method. This method takes a long time to measure the pipeline, has a large workload, and has a large manual error. During the test, the sampling pipe is divided into points according to a certain length during the measurement as time changes. When pulling out gradually, the combustion state of the boiler is also changing, thus the real grid method sampling test cannot be achieved, and the measurement accuracy is low. And the length of this single thin iron pipe is fixed, when the size of the test boiler flue changes, the iron pipe with fixed length is not suitable.

Contents of the invention

The purpose of the utility model is to propose a telescopic boiler flue gas sampling device according to the problems existing in flue gas sampling of existing power station boilers.

The technical scheme of the utility model is that the utility model is a retractable flue gas sampling device for a boiler, which includes a sampling pipe body, a pipe body joint, a pagoda joint and a pipe seat. The sampling pipe body is connected along the length direction through the pipe joint. The length of each section of the pipe body is equal, and each section of the pipe is equipped with a pipe hole of the same aperture; each section of the pipe on the pipe body can be disassembled through the pipe joint. , so as to achieve the length of the telescopic pipe, which is convenient for testing flue ducts of different sizes. The end connected to the sampling pipe body is installed on the pipe seat, and the other end of the pipe seat is connected to the pagoda joint, which is convenient for connecting the silicone tube; the pipe seat is matched with the on-site flue gas sampling measuring hole, so as to realize the sealing of the measuring point and prevent air leakage It leads to the distortion of flue gas sampling, which greatly improves the measurement efficiency, and the operation is simple and convenient.

The beneficial effect of the utility model is that the utility model can realize the real-time grid method sampling test of different sizes of flue, which improves the measurement efficiency and accuracy, and the operator can work away from the noise and dust area, which reduces personal injury. easy and convenient.

The utility model is suitable for boiler flue gas collection and sampling.

Description of drawings

Fig. 1 is a structural schematic diagram of a telescopic flue gas sampling device for a boiler of the present invention;

Fig. 2 is the enlarged left view of Fig. 1;

In the figure, 1 is the pagoda joint; 2 is the pipe seat; 3 is the sampling pipe body; 4 is the pipe hole; 5 is the pipe body joint.

detailed description

The specific embodiment of the utility model is shown in Fig. 1 and Fig. 2 .

This embodiment is realized in this way. The boiler flue gas multi-directional collection and sampling device in this embodiment consists of a pagoda joint 1, a pipe base 2, a sampling pipe body 3, a pipe hole 4 and a pipe body joint 5. The sampling pipe body 3 is connected along the length direction through the pipe body joint 5, and the length of each section of the pipe body is equal, and each section of the pipe is equipped with a pipe hole 4 with the same aperture; each section of the pipe on the pipe body can pass through the pipe body The joint 5 is disassembled to realize the length of the telescopic pipe, which is convenient for testing flue pipes of different sizes; the end of the sampling pipe body is connected to the pipe base 2, and the other end of the pipe base 2 is connected to the pagoda joint 1, which is convenient for connecting the silicone tube; the pipe base 2 and On-site flue gas sampling and measuring holes are matched, so as to realize the sealing of the measuring point, prevent the distortion of flue gas sampling caused by air leakage, greatly improve the measurement efficiency, and the operation is simple and convenient.

The utility model can realize the real-time grid method sampling test of flues of different sizes, improves the measurement efficiency and accuracy, and the operator can work away from noise and dust areas, reduces personal injury, and is simple and convenient to operate.

Claims (3)

1. a boiler extension type flue gas sampling device, described device is made up of body of sampling, pipe joint, pagoda joint and base, it is characterized in that, the sampling body of described device is connected by pipe joint along its length, on body, each pipe joint is dismounted by pipe joint, the end of sampling body is arranged on base, and the base other end connects pagoda joint.

A kind of boiler extension type flue gas sampling device the most according to claim 1, it is characterised in that on described body, each pipe joint length is equal, and on every pipe joint, it is furnished with the pore of a same apertures.

A kind of boiler extension type flue gas sampling device the most according to claim 1, it is characterised in that described base and the on-the-spot supporting connection of smoke sampling gaging hole.