CN204314282U - Detect the experimental provision of gas discharge drilling sealing material sealing property - Google Patents

Abstract

The utility model discloses an experimental device for detecting the sealing performance of gas drainage drilling sealing materials, which comprises a material detection tube (1) for containing the sealing material (14); the material detection tube (1) left , and the right two ends are respectively sealed by the left flange (2) and the right flange (15); the left end of the material detection pipe (1) is connected to the pressure gauge (3) and the left valve ( 4) and air compressor (6); the right end of the material detection tube (1) is connected to the right valve (8), flow meter (9) and water tank (11) in turn through the right pipe (10); The gas permeability is used to detect the shrinkage performance of the material, the idea is simple, the effect is intuitive, and the detection effect is good; through the device and method, a higher quality sealing material can be selected and inferior sealing materials can be eliminated.

Description

Experimental device for testing the sealing performance of gas drainage drilling sealing materials

technical field

The utility model relates to a gas drainage drilling sealing material, in particular to an experimental device for testing the sealing performance of the gas drainage drilling sealing material.

Background technique

The main method of gas extraction in coal mines in my country is borehole drainage; the sealing materials for borehole drainage are mainly polyurethane foam materials, cement, etc., but these materials are generally shrinkable, which determines the current underground gas extraction in my country. The gas leaks in the holes are generally serious, which has a negative impact on gas drainage and mine safety.

There is generally a lack of an effective detection method to verify the shrinkage of these materials in the borehole and the air leakage in the borehole with the rheology of time.

Contents of the invention

Aiming at the above-mentioned problems in the prior art, the utility model provides an experimental device for detecting the sealing performance of the gas drainage drilling sealing material, which detects the shrinkage performance of the material through the permeability of the high-pressure gas. The idea is simple and the effect is intuitive.

In order to achieve the above purpose, the technical solution adopted by the utility model is: an experimental device for detecting the sealing performance of the gas drainage drilling sealing material,

It includes a material detection tube for holding the sealing material;

The left and right ends of the material detection tube are respectively sealed by the left flange and the right flange;

The left end of the material detection tube is connected to the pressure gauge, the left valve and the air compressor in turn through the left pipeline;

The right end of the material detection pipe is sequentially connected to the right valve, the flow meter and the water tank through the right pipeline.

The left flange is sealed by screws and rubber pads.

The right flange is sealed by screws and rubber pads.

Both ends of the material detection tube are simultaneously blocked with cotton yarn.

The end of described right pipeline stretches below the liquid level of water tank.

The shape of the material detection tube is made of PE material, and the diameter is a straight tube of 80-115mm.

Compared with the existing device, this experimental device detects the shrinkage performance of the material through the permeability of high-pressure gas. Sealing materials, eliminate inferior sealing materials.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1. Material detection tube, 2. Left flange, 3. Pressure gauge, 4. Left valve, 5. Left pipeline, 6. Air compressor, 7. Screw, 8. Right valve, 9. Right Barometer, 10, right pipeline, 11, water tank, 12, rubber pad, 13, cotton yarn, 14, sealing material.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1, an experimental device for testing the sealing performance of gas drainage drilling sealing materials,

It includes a material detection tube 1 for containing a sealing material 14, wherein the sealing material 14 is filled with the material detection tube 1;

The left and right ends of the material detection tube 1 are respectively sealed by the left flange 2 and the right flange 15;

The left end of the material detection tube 1 is connected to the pressure gauge 3, the left valve 4 and the air compressor 6 in turn through the left pipeline 5;

The right end of the material detection pipe 1 communicates with the right valve 8 , the flow meter 9 and the water tank 11 through the right pipe 10 in sequence.

Further, the left flange 2 and the right flange 15 are sealed by screws 7 and rubber pads 12, and the sealing effect is simple and effective.

Both ends of the material detection tube 1 are blocked with cotton yarn 13 to further maintain the sealing performance.

The end of described right pipe 10 stretches into the bottom of the liquid surface of water tank 11, and the high-pressure air that is delivered from air compressor 6 has a better visual effect.

The material detection pipe 1 is made of PE material, a straight pipe with a diameter of 80-115mm, and is used for simulating downhole drilling. The pipe is easy to manufacture and has good sealing performance.

Its working process is as follows: open the air compressor 6, fill in high-pressure air, and adjust the power of the air compressor at the same time, the high-pressure air enters the material detection tube 1 through the pipeline 5 and penetrates into the sealing material 14; the high-pressure air flows from the right end of the material detection tube 1 Seep out and open right valve 8 at the same time, observe the amount of air bubbles in right pipeline 10 in water tank 11, and then detect the performance of sealing material 14.

To sum up, this device detects the shrinkage performance of materials through the permeability of high-pressure gas. Poor quality sealing material.

Claims (6)

1. detect an experimental provision for gas discharge drilling sealing material sealing property, it is characterized in that,

It comprises the material tests pipe (1) for holding encapsulant (14);

Described material tests pipe (1) left and right two ends are respectively by left flange plate (2), right ring flange (15) sealing;

Described material tests pipe (1) left end is communicated with tensimeter (3), left valve (4) and air compressor (6) successively by left pipeline (5);

Described material tests pipe (1) right-hand member is communicated with right valve (8), flowmeter (9) and water tank (11) successively by right pipeline (10).

2. a kind of experimental provision detecting gas discharge drilling sealing material sealing property according to claim 1, is characterized in that, described left flange plate (2) is by screw (7) and rubber cushion (12) sealing.

3. a kind of experimental provision detecting gas discharge drilling sealing material sealing property according to claim 1 and 2, is characterized in that, described right ring flange (15) is by screw (7) and rubber cushion (12) sealing.

4. a kind of experimental provision detecting gas discharge drilling sealing material sealing property according to claim 1, is characterized in that, described material tests pipe (1) two ends adopt cotton yarn (13) to carry out shutoff simultaneously.

5. a kind of experimental provision detecting gas discharge drilling sealing material sealing property according to claim 1, is characterized in that, the end of described right pipeline (10) stretches into below the liquid level of water tank (11).

6. a kind of experimental provision detecting gas discharge drilling sealing material sealing property according to claim 1 or 4, is characterized in that, described material tests pipe (1) material is PE material, and diameter gets the straight tube of 80-115mm.