CN213749252U

CN213749252U - Gas sampling device with diffuse function

Info

Publication number: CN213749252U
Application number: CN202022247351.6U
Authority: CN
Inventors: 孟凡杰; 赵立军; 姜彦冰; 何冲; 宋守强; 胡绍磊; 滕雪亮
Original assignee: Angang Steel Co Ltd
Current assignee: Angang Steel Co Ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-07-20
Anticipated expiration: 2030-10-10

Abstract

The utility model relates to a coal gas sampling device with diffuse function, including filter screen, diffuse valve, diffuse pipe, sample ball courage, the export of sample connection valve is connected through filter screen and three-way first port, and three-way second port is connected with sample ball courage, and three-way third port is connected through diffuse valve and diffuse pipe, diffuse pipe be universal pipe. The advantages are that: rational in infrastructure, through the diffusion time of diffusion valve control coal gas, guarantee that the interior remaining gas of sampling tube and dust are whole to be emitted the back, take a sample, guaranteed the purity of gas sample. And the valve is adopted for control, so that the operation is convenient. The diffusion pipe is connected behind the diffusion valve, so that the discharge position of diffused gas is conveniently adjusted, and the safety of operators is ensured. The diffusing pipe adopts a universal pipe, so that the diffusing direction of the gas can be conveniently adjusted on site at any time.

Description

Gas sampling device with diffuse function

Technical Field

The utility model belongs to industrial gas production detection area especially relates to a coal gas sampling device with diffuse function.

Background

The gas pipeline of industrial enterprise installs online gas analysis system mostly, nevertheless need carry out the manual sampling chemical examination work of gas pipeline often for the accuracy of proofreading and correct online analysis appearance, uses the sample bulb to go on at the sample connection of gas pipeline during manual sampling, and the step of sampling is:

1. before sampling, opening a sampling valve on a gas pipeline, and releasing gas to air for more than 2min until residual gas and dust in a sampling pipe after the sampling valve is completely discharged;

2. connecting a connecting pipe on the sampling bladder with a sampling port, opening a sampling valve to introduce gas into the bladder until the bladder is full of gas, and closing the sampling valve on a gas pipeline.

3. And taking down the sampling bladder, and gradually folding the bladder from the tail end of the bladder to the connecting pipe end of the bladder to completely remove the gas in the bladder.

4. And repeating the steps 2 and 3-4 times, and replacing residual gas of the bladder with coal gas.

5. And (5) repeating the step (2) to obtain a gas sample.

The sampling bladder needs to be connected and taken down for many times in the sampling process, so that the positive pressure of the sampling pipe and the connecting pipe cannot be kept by using coal gas at the moment, air enters, the air enters the sampling bag along with the coal gas, and the problem that the air enters the sampling bag cannot be solved in the replacement step, so that the sample of the taken gas is impure, and the analysis result is influenced. Meanwhile, when the sampling bladder is connected and taken down for a plurality of times to drive the gas in the bladder, the safety of operators is threatened, and the gas poisoning is very easy to occur.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide a gas sampling device with a diffusing function, which solves the problems that the gas sample obtained in the existing gas sampling process is impure and the safety of the operating personnel can not be guaranteed.

In order to achieve the above object, the utility model discloses a following technical scheme realizes:

the utility model provides a coal gas sampling device with diffuse function, includes filter screen, diffuse valve, diffuse pipe, sample ball courage, and the export of sample connection valve is connected with three-way first port through the filter screen, and three-way second port is connected with sample ball courage, and three-way third port is connected with diffuse pipe through diffuse valve, diffuse pipe be universal pipe.

The filter screen is composed of a plurality of layers of filter screens with different apertures.

Compared with the prior art, the beneficial effects of the utility model are that:

the gas sampling device with the diffusing function is reasonable in structure, the diffusing time of gas is controlled through the diffusing valve, the residual gas and dust in the sampling pipe are guaranteed to be discharged completely, sampling is carried out, the filter screen is connected to the outlet of the valve of the sampling port, and the purity of a gas sample is guaranteed. And the valve is adopted for control, so that the operation is convenient. The diffusion pipe is connected behind the diffusion valve, so that the discharge position of diffused gas is conveniently adjusted, and the safety of operators is ensured. The diffusing pipe adopts a universal pipe, so that the diffusing direction of the gas can be conveniently adjusted on site at any time.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1-sampling port valve 2-tee joint 3-filter screen 4-sampling bladder 5-blow-off valve 6-blow-off pipe.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.

See figure 1, a coal gas sampling device with diffuse function, including filter screen 3, diffuse valve 5, diffuse pipe 6, sample ball courage 4, the first port that the export of sample connection valve 1 was connected through filter screen 3 and tee bend 2 guarantees the purity of gas sample, and tee bend 2's second port is connected with sample ball courage 4, and tee bend 2's third port is connected with diffuse pipe 6 through diffuse valve 5, diffuse pipe 6 be universal pipe, conveniently will diffuse 6 end position of pipe and adjust to arbitrary position. The filter screen 3 is composed of a plurality of layers of filter screens with different apertures.

Connect this device to sample connection valve 1 through the pipeline before the operation of taking a sample, will diffuse 6 terminal leeward sides of arranging sample operation personnel in of pipe, the sample step is as follows:

1. and opening the bleeding valve 5 and the sampling port valve 1 to bleed the gas for more than 2min until the residual gas in the sampling pipe after the sampling valve is completely discharged.

2. And (3) closing the bleeding valve 5, opening the sampling port valve 1, introducing gas into the bladder until the bladder is full of the gas, and closing the sampling port valve 1.

3. And opening the bleeding valve 5, gradually folding the bladder from the tail end of the bladder to the connecting pipe end of the bladder, and completely removing the gas in the bladder.

4. And (5) repeating the steps 2 to 3 for three to four times, and replacing residual gas of the bladder with coal gas.

5. And (5) performing the step 2 to obtain a pure gas sample.

Claims

1. The utility model provides a coal gas sampling device with diffuse function, its characterized in that, includes filter screen, diffuse valve, diffuse pipe, sample ball courage, and sample connection valve outlet is connected through filter screen and three-way first port, and three-way second port is connected with sample ball courage, and three-way third port is connected with diffuse pipe through diffuse valve, diffuse pipe be universal pipe.

2. The gas sampling device with a diffusing function of claim 1, wherein the filter screen is composed of a plurality of layers of filter screens with different apertures.