CN2844436Y

CN2844436Y - Electric-melting and panel turnover gas-injecting point controller

Info

Publication number: CN2844436Y
Application number: CN200520144344.6U
Authority: CN
Inventors: 梁杰; 李文军; 孙加亮
Original assignee: China University of Mining and Technology Beijing CUMTB
Current assignee: China University of Mining and Technology Beijing CUMTB
Priority date: 2005-12-12
Filing date: 2005-12-12
Publication date: 2006-12-06
Anticipated expiration: 2015-12-12

Abstract

The utility model belongs to the technical equipment field of underground coal gasification, in particular to an electric melting flap type gas injection point controller. The controller is composed of four-way tube, flap A, flap B, flap C, electric heating wire, low-melting point metal pre-tensioning rod, and rotating shaft adjuster; flap A and flap B pass low-melting point metal The pre-tensioning rod is fixed on the port of the bypass channel of the four-way pipe, the rotating shaft regulator is installed on the pipe wall on both sides of the center line on the downstream side of the main channel of the four-way tube, and the flap C is installed on the downstream side of the main channel of the four-way tube. On the rotary shaft adjuster on the side, the electric control heating wire is wound on the low melting point metal pretension rod. Combining the utility model with the separation control gas injection process can increase the controllability and stability of the underground gasification process, and can automatically control the upward movement of the gas injection point, so that the gas injection point can move up following the upward movement of the gasification working face, Thus, the effective control of the gasification process is realized.

Description

Electric smelting turnover plate type gas injection point control device

Technical field

The utility model belongs to the coal underground gasification technology apparatus field, and particularly a kind of electric smelting turnover plate type gas injection point control device is applicable to underground coal gasification(UCG) control gas injection point gasifying process.

Background technology

The method of control gas injection point is less in the underground coal gasification(UCG) process at present, in shaft underground gasification process is arranged, someone proposes the pipe of placement different length in gasification tunnel and controls the gas injection point, and also the someone proposes to realize the gas injection point control with the method for explosion pipeline.But the former consumption of materials is big, and the latter was lost efficacy because of explosive or had unsafe factor, and is difficult to realize that it is very necessary therefore inventing a kind of safe and reliable gas injection point control device.

Summary of the invention

The purpose of this utility model provides a kind of electric smelting turnover plate type gas injection point control device that is applicable to the coal underground gasification furnace.

The utility model is made up of cross, turnover panel A, turnover panel B, turnover panel C, automatically controlled heater strip, low-melting-point metal pretension bar, axis of rotation adjuster; Turnover panel A and turnover panel B are fixed on the cross bypass port by low-melting-point metal pretension bar, the axis of rotation adjuster is installed on the center line both sides tube wall of cross primary path downstream one side, turnover panel C is installed on the axis of rotation adjuster of cross primary path downstream one side, can rotate, automatically controlled heater strip installs around on low-melting-point metal pretension bar.

On the four-way tube wall at described turnover panel C place, the sealing position-arresting ring is installed, guarantees that turnover panel C can only revolve the effect that turn 90 degrees and play the sealing primary path;

Along the center line both sides axostylus axostyle is installed at described turnover panel C, it inserts in the axle sleeve of axis of rotation adjuster;

At primary path and bypass port flange is installed all at described cross;

At described turnover panel A and turnover panel B and be fixed and accompany the fire prevention cushion between the cross bypass port, sealing bypass port prevents that gas from flowing out;

One stainless steel wire backguy is installed on described turnover panel C, and the other end of backguy is fixed on the turnover panel B, drives turnover panel C by the steel wire backguy and rotate when turnover panel B falls.

The beneficial effect that the utility model reaches is: electric smelting turnover plate type gas injection point control device is in conjunction with separating the control gas injection technology, the controllability and the stability of underground gasification process have been increased, can control on the gas injection point automatically and move, make the gas injection point follow gasification face on move and on move, thereby realized effective control to gasification.

Below in conjunction with drawings and Examples the utility model being done one describes in detail

Description of drawings

Fig. 1 is the utility model master sectional view;

Fig. 2 is the utility model vertical view;

Fig. 3 is an A rotation adjustment device sectional view among Fig. 2.

The specific embodiment

Fig. 1 to Fig. 3 has shown electric smelting turnover plate type gas injection point control device structure, wherein, cross 15, the primary path 4 of

cross

15,14, four outlets of the bypass of cross 15 port is welded with flange 5; On both sides bypass terminal port flange 5, be fixed with turnover panel A1 and turnover panel B8 by low-melting-point metal pretension bar 9 and nut 10; Accompany between turnover panel A1 and turnover panel B8 and the terminal port flange 5 fire prevention cushion 12, employing be the asbestos seal pad; Automatically controlled heater strip 11 is housed on the low-melting-point metal pretension bar 9, and the automatically controlled lead-in wire 13 of automatically controlled heater strip 11 is drawn by turnover panel B8; Primary path downstream at cross 15 is equipped with turnover panel C2, and turnover panel C2 is equipped with axostylus axostyle 20 along the center line both sides; Axostylus axostyle 20 is installed in the axle sleeve 18, and axle sleeve 18 is to be formed on the set screw 19 of rotation adjustment device 16, and the setscrew nut 17 on the rotation adjustment device 16 welds together with cross 15, on the fixing nut 17 on the throne of set screw 19 rotations; Guiding principle pearl 21 is installed, to reduce spin friction power in the axle sleeve 18; Sealing position-arresting ring 3 is housed on the primary path downstream tube wall of the cross 15 vertical with turnover panel C2 center of rotation, the rotational angle of control turnover panel C2 is 90 degree, be fixed with stainless steel wire backguy 6 on the turnover panel C2, stainless steel wire backguy 6 is passed the guide ring 7 that is fixed on cross 15 tube walls and is linked to each other with turnover panel B8.

The course of work of the present utility model is such:

When after automatically controlled heater strip 11 energisings, low-melting-point metal pretension bar 9 is fused, and turnover panel A1 and turnover panel B8 open the bypass 14 of cross 15 under action of gravity; Turnover panel B8 traction stainless steel wire backguy 6 drives turnover panel C2 rotation, and turnover panel C2 revolves and turn 90 degrees that strut rail is in the primary path of cross 15 under the effect of sealing position-arresting ring 3, and air-flow is flowed out by bypass 14, and is no longer descending, realized the gas injection point control.

Claims

1. An electrofusion flap type gas injection point controller is characterized in that it consists of four-way pipe (15), flap A (1), flap B (8), flap C (2), electric control heating wire (11), low-melting-point metal pre-tension rod (9), and rotary shaft adjuster (16); flap A (1) and flip-plate B (8) are controlled by low-melt-point metal pre-tension rod (9) Be fixed on the port of the four-way pipe (15) bypass passage (14), and the rotary shaft regulator (16) is installed on the pipe wall on both sides of the center line of the downstream side of the four-way pipe (15) main passage (4). Plate C (2) is installed on the rotary shaft regulator (16) on the downstream side of the main channel (4) of the four-way pipe, and the electric control heating wire (11) is wound on the low-melting point metal pre-tensioning rod (9).

2. An electrofusion flap type gas injection point controller according to claim 1, characterized in that a sealing stop is installed on the wall of the four-way pipe (15) at the flap C (2) Ring (3).

3. An electrofusion flap type gas injection point controller according to claim 1 or 2, characterized in that, said flap C (2) is equipped with shafts (20) along both sides of the centerline, which Insert into the bushing (18) of the rotary shaft adjuster (16).

4. A kind of electrofusion flap type gas injection point controller according to claim 1, characterized in that, said four-way pipe (15) is equipped with Flange(5).

5. An electrofusion flap type gas injection point controller according to claim 1, characterized in that, between the flap A (1) and the flap B (8) and the fixed four-way pipe (15 ) A fireproof cushion (12) is sandwiched between the ports of the bypass passage (14).

6. According to claim 1, 2 or 3, a kind of electrofusion flap type gas injection point controller is characterized in that, a stainless steel wire pull wire (6) is installed on the flap C (2), and the pull wire The other end of (6) is fixed on the turnover plate B (8).