CN101994519B - Gas extraction hose connecting device and method - Google Patents

Abstract

The invention discloses a gas drainage hose connection device and method, wherein the device includes a ring-shaped steel bar, the ring-shaped steel bar is in the shape of a spring, and one end of the ring-shaped steel bar is in the shape of the other end of the ring-shaped steel bar. More than 360 degrees of superimposition; the first nut is arranged at one end of the ring-shaped steel bar; the second nut is arranged at the other end of the ring-shaped steel bar; the third nut is arranged with the diameter of the ring-shaped steel bar as the axis and the first A nut is symmetrically arranged on the ring-shaped steel bar, and the third nut is coaxial with the first nut; the fourth nut is symmetrically arranged on the second nut with the diameter of the ring-shaped steel bar as the axis on the ring-shaped steel bar, and the fourth nut is concentric with the second nut. The invention solves the technical defects of poor sealing at the socket of the gas extraction hose and high cost of the gas extraction hose with a flange in the prior art, and realizes excellent sealing at the socket of the gas extraction hose and The purpose of reducing the cost of gas extraction hoses.

Description

Gas extraction hose connection device and method

technical field

The invention relates to coal engineering technology, in particular to a gas extraction hose connection device and method for connecting gas extraction hoses in the gas extraction process.

Background technique

In the continuous progress of mine production, as the mined coal seam becomes deeper and deeper, the gas pressure in the unmined coal seam is also increasing. In order to ensure the safety and efficiency of mine production, a large number of construction drainage drilling is required. And through the drainage channel formed by several drainage boreholes, the gas drainage hose is used for gas drainage. Due to the varying degrees of complexity of the underground drainage boreholes, the lengths of the gas drainage hoses required to run through the drainage boreholes are also different. Therefore, it is necessary to combine the gas drainage hoses for drainage. In the prior art, the gas drainage hose is generally connected with iron wires for the drainage of the combined hole. Due to the poor sealing of the socket, it is easy to leak gas, which affects the effect of the combined hole drainage and restricts the gas extraction. Hole extraction efficiency. Furthermore, some coal mines currently use gas extraction hoses with flanges for closed-hole drainage. Although the technical problem of poor sealing at the sockets and easy gas leakage has been solved, the hoses with flanges The gas drainage hose has the disadvantage of high cost, and because the length of the gas drainage hose with the flange is limited, it is not suitable for complex terrain changes in mines.

Contents of the invention

The purpose of the present invention is to provide a gas drainage hose connection device and method to solve the poor sealing of the gas drainage hose socket and the gas drainage with a flange in the prior art. The technical defect of the high cost of the hose achieves the purpose of excellent sealing at the socket of the gas extraction hose and reducing the cost of the gas extraction hose.

In order to achieve the above object, the present invention provides a gas drainage hose connection device in one aspect, which includes: a ring-shaped steel bar, the ring-shaped steel bar is in the shape of a spring, and one end of the ring-shaped steel bar is connected to the The other end of the ring-shaped steel bar is superimposed over 360 degrees; the first nut is arranged at one end of the ring-shaped steel bar; the second nut is arranged at the other end of the ring-shaped steel bar; The diameter is the axis and the first nut is symmetrically arranged on the ring-shaped steel bar, and the third nut is concentric with the first nut; the fourth nut is arranged on the ring-shaped steel bar with the diameter as the axis and The second nut is arranged symmetrically on the ring-shaped steel bar, and the fourth nut is concentric with the second nut.

Another aspect of the present invention provides a gas extraction hose connection method, which includes:

Loosely cover the ring-shaped steel bar of the gas extraction hose connection device on one end of the gas extraction hose;

And one end of the gas extraction hose is sleeved on one end of an iron pipe, and the ring-shaped steel bar is loosely sleeved on the periphery of one end of the iron pipe;

By tightening the first bolt and the second bolt of the gas extraction hose connection device at the same time, the first nut and the third nut side and the second nut and the fourth nut side of the ring-shaped steel bar are simultaneously stressed symmetrically, The whole of the ring-shaped steel bar is tightened toward the center of the circle, so that the gas extraction hose is tightly sleeved on one end of the iron pipe.

From the above technical solutions, it can be seen that the gas drainage hose connection device and method provided by the present invention solve the problem of poor sealing at the joint of the gas drainage hose and the connection with flanges in the prior art. The technical defect of the high cost of the gas extraction hose of the pan achieves the purpose of excellent sealing at the socket of the gas extraction hose and reduces the cost of the gas extraction hose.

Description of drawings

Fig. 1 is a schematic top view of the gas drainage hose connection device of the present invention;

Fig. 2 is a schematic side view of the gas extraction hose connection device of the present invention;

Fig. 3 is a flow chart of the gas extraction hose connection method of the present invention.

Detailed ways

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Fig. 1 is a schematic top view of the gas extraction hose connection device of the present invention. Fig. 2 is a schematic side view of the gas extraction hose connection device of the present invention. As shown in Figure 1 and Figure 2, the gas extraction hose connection device of this embodiment includes a ring-shaped steel bar 5, a first nut 1, a second nut 2, a third nut 3, and a fourth nut 4, wherein the ring-shaped steel bar 5. One end of a steel bar of 6 mm can be made into a spring shape around the other end, and one end of the ring-shaped steel bar 5 and the other end of the ring-shaped steel bar 5 are superimposed over 360 degrees, specifically 540 degrees; the first nut 1 is welded At one end of the ring-shaped steel bar 5; the second nut 2 is welded on the other end of the ring-shaped steel bar 5; the third nut 3 is welded on the ring-shaped steel bar 5 symmetrically with the first nut 1 on the axis with the diameter of the ring-shaped steel bar 5, and The third nut 3 is coaxial with the first nut 1; the fourth nut 4 is symmetrically welded on the ring steel bar 5 with the diameter of the ring steel bar 5 as the axis and the second nut 2, and the fourth nut 4 and the second Nut 2 is concentric.

Further, the gas drainage hose connection device of this embodiment also includes a first bolt and a second bolt (not shown in Fig. 1 and Fig. 2 ). The first bolt penetrates between the first nut 1 and the third nut 3, And the length of the first bolt is greater than the distance between the first nut 1 and the third nut 3; the second bolt penetrates between the second nut 2 and the fourth nut 4, and the length of the second bolt is greater than the second nut 2 and the fourth nut 4 The distance between the nuts 4.

The working process of the application of the gas drainage hose connection device in this embodiment in the combined hole drainage is as follows: at the place where the combined hole drainage is required, the gas drainage hose connection device is set on the gas drainage hose, and then passed through Connect the gas extraction hose to one end of an iron pipe. At this time, place the gas extraction hose connection device loosely on the iron pipe. Further, by tightening the first bolt and the second bolt at the same time, the ring-shaped The sides of the first nut 1 and the third nut 3 of the steel bar 5 and the sides of the second nut 2 and the fourth nut 4 are stressed symmetrically at the same time, so that the ring-shaped steel bar 5 is tightened toward the center of the circle as a whole, so that the gas drainage hose is sealed and fixed on the The effect on the iron pipe is the same, and the same operation is carried out at the other end of the iron pipe, so as to achieve the purpose of sealing and closing the holes of the two gas extraction hoses.

The gas extraction hose connection device provided in this embodiment solves the poor sealing of the socket of the gas extraction hose and the high cost of the gas extraction hose with a flange in the prior art. The technical defects of the gas extraction hose have achieved the purpose of excellent sealing at the socket of the gas extraction hose and reducing the cost of the gas extraction hose.

Fig. 3 is a flow chart of the gas extraction hose connection method of the present invention. As shown in Figure 3, the gas extraction hose connection method of this embodiment includes:

Step 301, loosely put the ring-shaped steel bar of the gas extraction hose connection device on one end of the gas extraction hose;

Step 302, and one end of the gas extraction hose is sleeved on one end of an iron pipe, and the ring-shaped steel bar is loosely sleeved on the periphery of one end of the iron pipe;

Step 303, by simultaneously tightening the first bolt and the second bolt of the gas extraction hose connection device, making the sides of the first nut and the third nut and the side of the second nut and the fourth nut of the annular steel bar symmetrical at the same time Under force, the whole of the ring-shaped steel bar is tightened toward the center of the circle, so that the gas drainage hose is tightly sleeved on one end of the iron pipe.

The gas drainage hose connection method provided in this embodiment uses the gas drainage hose connection device to solve the problem of poor sealing at the socket of the gas drainage hose and the flange with the gas drainage hose in the prior art. The technical defect of the high cost of the gas extraction hose achieves the purpose of excellent sealing at the socket of the gas extraction hose and reducing the cost of the gas extraction hose.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it still Modifications or equivalent replacements can be made to the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims (4)

1. A gas extraction hose connection device, characterized in that it comprises: A ring-shaped steel bar, the ring-shaped steel bar is in the shape of a spring, and one end of the ring-shaped steel bar and the other end of the ring-shaped steel bar are superimposed over 360 degrees; a first nut welded to one end of the ring-shaped steel bar; The second nut is welded on the other end of the annular steel bar; The third nut is symmetrically welded on the ring-shaped steel bar with the diameter of the ring-shaped steel bar as the axis, and the third nut is concentric with the first nut; The fourth nut is symmetrically welded on the ring-shaped steel bar with the diameter of the ring-shaped steel bar as the axis, and the fourth nut is concentric with the second nut. 2. The gas extraction hose connection device according to claim 1, further comprising: a first bolt passing through between the first nut and the third nut, and the length of the first bolt is greater than the distance between the first nut and the third nut; The second bolt penetrates between the second nut and the fourth nut, and the length of the second bolt is greater than the distance between the second nut and the fourth nut. 3. The gas drainage hose connection device according to claim 1, characterized in that: The ring bars are made of 6mm steel bars. 4. A gas extraction hose connection method, characterized in that, comprising: Loosely cover the ring-shaped steel bar of the gas extraction hose connection device on one end of the gas extraction hose; And one end of the gas extraction hose is sleeved on one end of an iron pipe, and the ring-shaped steel bar is loosely sleeved on the periphery of one end of the iron pipe; By tightening the first bolt and the second bolt of the gas extraction hose connection device at the same time, the first nut and the third nut side and the second nut and the fourth nut side of the ring-shaped steel bar are simultaneously stressed symmetrically, The whole of the ring-shaped steel bar is tightened toward the center of the circle, so that the gas extraction hose is tightly sleeved on one end of the iron pipe.

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