Coal seam underground gasification pressure regulating device
By designing an underground coalbed gasification pressure regulating device, and utilizing components such as a metering chamber and a return spring, the problem of quantitative delivery of coalbed gas pressure regulating equipment was solved, thereby improving the delivery efficiency of coalbed gas and the working efficiency of the pressure regulating equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2026-03-20
AI Technical Summary
Existing coalbed methane pressure regulating equipment is unable to achieve quantitative delivery, resulting in coalbed methane waste and reduced working efficiency of the pressure regulating equipment.
A coalbed methane underground gasification pressure regulating device was designed. It utilizes components such as a metering chamber, sealing plate, barrier plate and return spring to achieve metered delivery of coalbed methane through pressure control. The device includes the coordinated action of the metering chamber inlet, inlet channel, sealing plate, barrier plate, buffer spring and return spring to ensure the metered output of coalbed methane.
This enables the quantitative transportation of coalbed methane, improves the working efficiency of pressure regulating pumps, and reduces the waste of coalbed methane.
Smart Images
Figure CN224017376U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the coal bed gas pressure regulating field especially relates to a coal bed underground gasification pressure regulating device. BACKGROUND
[0002] Coal underground gasification is carried out in the coal bed in the gasification passage, and its core technology is to promote the full contact between the gasification agent (air or oxygen, water vapor, etc.) and the underground coal bed, to produce combustible gas through the pyrolysis and chemical action on the coal. With the natural wide application of coal bed gas, coal bed gas pressure regulating equipment also emerges as the times require, but the coal bed gas pressure regulating equipment in the market at present is difficult to realize quantitative conveying of coal bed gas, causing the waste of coal bed gas and reducing the working efficiency of the pressure regulating equipment. CONTENT OF UTILITY MODEL
[0003] In order to solve the technical problem that the coal bed gas pressure regulating equipment in the market at present is difficult to realize quantitative conveying of coal bed gas, causing the waste of coal bed gas and reducing the working efficiency of the pressure regulating equipment, the utility model provides a coal bed underground gasification pressure regulating device.
[0004] The utility model adopts the following technical scheme to realize: a coal bed underground gasification pressure regulating device, including pressure regulating pump, the pressure regulating pump includes ration cavity, the top of ration cavity is provided with ration cavity air inlet, the below of ration cavity air inlet is connected with air inlet channel, the below of air inlet channel is abutted with sealing plate, and the sealing plate seals air inlet channel, the below of air inlet channel is provided with sealing plate, the below of sealing plate is connected with mounting bracket, one end of the below of mounting bracket is connected with first reset spring, the other end of first reset spring is connected with blocking plate, and the lateral wall of blocking plate is abutted with the outside of ration cavity air outlet, and the blocking plate seals ration cavity air outlet, the below of blocking plate is connected with buffer spring, one end of the below of blocking plate is fixedly connected with shaft, the other end of shaft is connected with movable table, and movable table is installed on limiting frame, and the inside of movable table is clamped with first axle, and the outside of first axle is installed with axle support, the other end of axle support is connected with second axle, the outside of second axle is connected with press spring, and second reset spring is installed between axle support and limiting frame, and the bottom of movable table is fixedly connected with third reset spring.
[0005] When the coal bed gas enters into the quantitative cavity from the quantitative cavity air inlet, the coal bed gas enters into the air inlet channel, under the pressure of the coal bed gas, the sealing plate below the air inlet channel is pressed and then pushes down the mounting frame, the mounting frame then pushes down the first reset spring connected therewith, the first reset spring is pressed and then pushes down, the coal bed gas then enters into the upper half of the quantitative cavity, with the gradual increase of the coal bed gas, the pressure gradually increases, the blocking plate then pushes the buffer spring and the shaft connected therewith, the shaft pushes down the movable table, the movable table drives the first shaft to be synchronously pressed down, the first shaft then drives the shaft frame to be deflected, the second shaft connected to the other end of the shaft frame is synchronously deflected, the second shaft is connected with the pressing spring, the stability of the pressing is ensured, the second reset spring is connected with the limiting frame and the shaft frame, the reset and stability of the shaft frame are ensured, the third reset spring connected to the bottom end of the movable table is synchronously compressed, the horizontal stability of the shaft driving the movable table to be pressed down is ensured, and the situation that the pressing is deviated is avoided; with the gradual pressing down of the blocking plate, the coal bed gas then enters into the quantitative cavity air outlet, and the coal bed gas is output through the quantitative cavity air outlet.
[0006] After the coal bed gas is output, the pressure of the quantitative cavity air inlet will be smaller, the third reset spring will be reset, the third reset spring reversely pushes the movable table and the shaft, and the blocking plate connected to the upper side of the shaft then seals the quantitative cavity air outlet, so that the coal bed gas is quantitatively delivered into the pressure regulating pump, and the working efficiency of the pressure regulating pump is improved.
[0007] As a further improvement of the above-mentioned scheme, the side wall of the quantitative cavity is provided with the quantitative cavity air outlet, one side of the quantitative cavity is connected with the pressure stabilizer, the other side of the pressure stabilizer is provided with the filter, the side, away from the pressure stabilizer, of the filter is connected with the pressure detection chamber, and the end, away from the filter, of the pressure detection chamber is connected with the coal bed gas outlet.
[0008] As a further improvement of the above-mentioned scheme, the connecting part of the movable table and the first shaft is provided with a slot, and the first shaft is clamped in the inner side of the slot. The connecting part of the limiting frame and the second shaft is provided with a U-shaped slot, the second shaft is clamped in the inner side of the slot, and the pressing spring is arranged in the inner side of the slot and connected with the second shaft and the limiting frame.
[0009] As a further improvement of the above-mentioned scheme, the first shaft and the second shaft are both spherical, so that the first shaft and the second shaft are conveniently deflected.
[0010] Compared with the prior art, the beneficial effects of the present application are as follows:
[0011] The utility model discloses a quantitative cavity air inlet pressure will be smaller after coal bed gas output, third reset spring will reset, third reset spring reverse push movable platform and axle rod, and the blocking board connected on the axle rod is sealed to quantitative cavity air outlet, thereby realizing the quantitative delivery coal bed gas to pressure regulating pump, improve the working efficiency of pressure regulating pump. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is whole structure schematic diagram of the utility model;
[0013] Figure 2 It is the utility model Figure 1 It is internal structure schematic diagram;
[0014] Figure 3 It is part structure schematic diagram of the utility model. Figure 2
[0015] Main symbol explanation:
[0016] 1, pressure regulating pump;2, quantitative cavity;3, quantitative cavity air inlet;4, quantitative cavity air outlet;5, pressure stabilizer;6, filter;7, pressure detection chamber;9, coal bed gas outlet;10, air inlet channel;11, sealing plate;12, mounting frame;13, first reset spring;14, blocking plate;15, buffer spring;16, axle rod;17, movable platform;18, limit frame;19, first axle center;20, axle bracket;21, second axle center;22, press spring;23, second reset spring;24, third reset spring. DETAILED DESCRIPTION
[0017] Below, combining the drawings and specific implementation, the utility model is described further, need to explain, under the premise of not conflicting, the following description of each embodiment or each technical feature between can be any combination and form new embodiment.
[0018] Example 1:
[0019] Please combine Figures 1-3 , this embodiment proposes a coal bed underground gasification pressure regulating device, including pressure regulating pump 1, and pressure regulating pump 1 includes quantitative cavity 2, and the top of quantitative cavity 2 is provided with quantitative cavity air inlet 3;Quantitative cavity 2's lateral wall is opened with quantitative cavity air outlet 4, and one side of quantitative cavity 2 is connected with pressure stabilizer 5, and the other side of pressure stabilizer 5 is installed with filter 6, and the side of filter 6 away from pressure stabilizer 5 is connected with pressure detection chamber 7, and one end of pressure detection chamber 7 away from filter 6 is connected with coal bed gas outlet 9.
[0020] The lower part of the quantitative cavity air inlet 3 is connected with an air inlet channel 10, the lower part of the air inlet channel 10 is abutted with a sealing plate 11, the sealing plate 11 seals the air inlet channel 10; the lower part of the air inlet channel 10 is provided with the sealing plate 11, the lower part of the sealing plate 11 is connected with a mounting frame 12, one end of the lower part of the mounting frame 12 is connected with a first reset spring 13, the other end of the first reset spring 13 is connected with a blocking plate 14, the side wall of the blocking plate 14 is abutted with the outside of the quantitative cavity air outlet 4, the blocking plate 14 seals the quantitative cavity air outlet 4; the lower part of the blocking plate 14 is connected with a buffer spring 15, the lower part of the blocking plate 14 is fixedly connected with one end of a shaft rod 16, the other end of the shaft rod 16 is connected with a movable table 17, the movable table 17 is installed on a limiting frame 18, the inner side of the movable table 17 is clamped with a first shaft 19, the outer side of the first shaft 19 is installed with a shaft frame 20, the other end of the shaft frame 20 is connected with a second shaft 21, the outer side of the second shaft 21 is connected with a pressing spring 22, the second reset spring 23 is installed between the shaft frame 20 and the limiting frame 18, the bottom end of the movable table 17 is fixedly connected with a third reset spring 24.
[0021] When the coal bed gas enters into the quantitative cavity 2 from the quantitative cavity air inlet 3, the coal bed gas enters into the air inlet channel 10, under the pressure of the coal bed gas, the sealing plate 11 at the lower part of the air inlet channel 10 is pressed and then pushes downward, the sealing plate 11 then pushes the mounting frame 12 downward, the mounting frame 12 then presses the first reset spring 13 connected therewith downward, the first reset spring 13 is pressed and then pressed downward, the coal bed gas thus enters into the upper half of the quantitative cavity 2, with the gradual increase of the coal bed gas, the pressure gradually increases, the coal bed gas then pushes the blocking plate 14, the blocking plate 14 compresses the buffer spring 15 and the shaft rod 16 connected therewith, the shaft rod 16 pushes the movable table 17 downward, the movable table 17 drives the first shaft 19 clamped thereon to be pressed downward synchronously, the first shaft 19 then drives the shaft frame 20 to be deflected, the second shaft 21 connected with the other end of the shaft frame 20 is deflected synchronously, the second shaft 21 is connected with the pressing spring 22, ensuring the stability of the downward pressing, the second reset spring 23 connects the limiting frame 18 with the shaft frame 20, ensuring the reset and stability of the shaft frame 20, the third reset spring 24 connected with the bottom end of the movable table 17 is compressed synchronously, ensuring the horizontal stability of the shaft rod 16 driving the movable table 17 to be pressed downward, and the downward deviation of the movable table 17 does not occur; with the gradual downward pressing of the blocking plate 14, the coal bed gas then enters into the quantitative cavity air outlet 4, the coal bed gas passes through the quantitative cavity air outlet 4 and outputs the coal bed gas.
[0022] After the coal bed gas is output, the pressure of the quantitative cavity air inlet 3 at this time will be smaller, the third reset spring 24 will be reset, the third reset spring 24 reversely pushes the movable table 17 and the shaft rod 16, the blocking plate 14 connected with the upper part of the shaft rod 16 then seals the quantitative cavity air outlet 4, thus realizing the quantitative delivery of the coal bed gas into the pressure regulating pump 1 and improving the working efficiency of the pressure regulating pump 1.
[0023] The active platform 17 is provided with a notch at the connection with the first shaft 19, and the first shaft 19 is clamped in the inner side of the notch. The limiting frame 18 is provided with a U-shaped notch at the connection with the second shaft 21, and the second shaft 21 is clamped in the inner side of the notch. The pressing spring 22 is arranged in the inner side of the notch to connect the second shaft 21 and the limiting frame 18. The first shaft 19 and the second shaft 21 are both spherical.
[0024] The specific implementation steps of the utility model are as follows:
[0025] In use, when the coal bed gas enters into the quantitative cavity 2 from the quantitative cavity air inlet 3, the coal bed gas enters into the air inlet channel 10, and under the pressure of the coal bed gas, the sealing plate 11 below the air inlet channel 10 is pressed and then pushed downward, the sealing plate 11 then pushes the mounting frame 12 downward, the mounting frame 12 then presses the first reset spring 13 connected therewith downward, the first reset spring 13 is pressed and pressed downward, and the coal bed gas then enters into the upper half of the quantitative cavity 2. With the gradual increase of the coal bed gas, the pressure gradually increases, the coal bed gas then pushes the blocking plate 14, the blocking plate 14 compresses the buffer spring 15 and the shaft rod 16 connected therewith, the shaft rod 16 pushes the active platform 17 downward, the active platform 17 drives the first shaft 19 clamped thereon to be pressed downward synchronously, the first shaft 19 then drives the shaft frame 20 to be deflected, the second shaft 21 connected to the other end of the shaft frame 20 is deflected synchronously, the second shaft 21 is connected with the pressing spring 22, the stability of the downward pressing is ensured, the second reset spring 23 connects the limiting frame 18 and the shaft frame 20, the reset and stability of the shaft frame 20 are ensured, the third reset spring 24 connected to the bottom end of the active platform 17 is compressed synchronously, the horizontal stability of the shaft rod 16 driving the active platform 17 to be pressed downward is ensured, and the situation that the downward pressing is deviated will not occur. With the gradual downward pressing of the blocking plate 14, the coal bed gas then enters into the quantitative cavity air outlet 4, and the coal bed gas is output through the quantitative cavity air outlet 4.
[0026] After the coal bed gas is output, the pressure of the quantitative cavity air inlet 3 will be smaller, the third reset spring 24 will be reset, the third reset spring 24 reversely pushes the active platform 17 and the shaft rod 16, and the blocking plate 14 connected to the upper side of the shaft rod 16 then seals the quantitative cavity air outlet 4, so that the coal bed gas is quantitatively delivered into the pressure regulating pump 1, and the working efficiency of the pressure regulating pump 1 is improved.
[0027] The above-mentioned embodiment is only a preferred embodiment of the utility model, and cannot be used to limit the range of protection of the utility model. Any non-substantial change and replacement made by the person skilled in the art on the basis of the utility model belongs to the range of protection required by the utility model.
Claims
1. A coal seam underground gasification pressure regulating device, comprising a pressure regulating pump, characterized in that, The pressure regulating pump includes a metering chamber, and a metering chamber air inlet is provided at the top of the metering chamber; An air inlet channel is connected below the air inlet of the metering chamber. A sealing plate is provided below the air inlet channel. A mounting bracket is connected below the sealing plate. One end of a first return spring is connected below the mounting bracket. A baffle plate is connected to the other end of the first return spring. A buffer spring is connected below the baffle plate. One end of a shaft is fixedly connected below the baffle plate. The other end of the shaft is connected to a movable platform. The movable platform is mounted on a limiting frame. A first shaft is snapped into the inner side of the movable platform. A shaft bracket is installed on the outer side of the first shaft. A second shaft is connected to the other end of the shaft bracket. A pressing spring is connected to the outer side of the second shaft. A second return spring is installed between the shaft bracket and the limiting frame. A third return spring is fixedly connected to the bottom end of the movable platform. The metering chamber has a metering outlet on its side wall. A pressure regulator is connected to one side of the metering chamber, and a filter is installed on the other side of the pressure regulator. A pressure detection chamber is connected to the side of the filter away from the pressure regulator, and a coalbed methane outlet is connected to the end of the pressure detection chamber away from the filter.
2. The underground coal seam gasification pressure regulating device as described in claim 1, characterized in that, A slot is provided at the connection between the movable platform and the first shaft, and the first shaft is engaged with the inside of the slot.
3. The underground coal seam gasification pressure regulating device as described in claim 1, characterized in that, The connection between the limiting frame and the second shaft is provided with a U-shaped slot, the second shaft is engaged inside the slot, and the pressing spring is provided inside the slot to connect the second shaft and the limiting frame.
4. The underground coal seam gasification pressure regulating device as described in claim 1, characterized in that, The sealing plate abuts against the lower part of the air intake channel, and the sealing plate seals the air intake channel.
5. The underground coal seam gasification pressure regulating device as described in claim 1, characterized in that, The sidewall of the barrier plate abuts against the outside of the outlet of the metering chamber, and the barrier plate seals the outlet of the metering chamber.
6. The underground coal seam gasification pressure regulating device as described in claim 1, characterized in that, Both the first axis and the second axis are spherical.