Concentration monitoring and regulating device for low-concentration gas power generation

Abstract

The utility model discloses a concentration monitoring and regulating device for low-concentration gas power generation, which relates to the technical field of gas safety monitoring and control, and comprises a pipeline, a mounting frame, a gas inlet pipe, a gas outlet pipe and a gas outlet pipe, the electric telescopic rod is arranged at the top of the pipeline, and the fixed end of the electric telescopic rod is fixedly mounted on the inner wall of the mounting frame; the moving block is arranged at the top of the pipeline and fixedly mounted at the telescopic end of the electric telescopic rod; according to the utility model, the electric telescopic rod pushes the moving block to extend forwards, the mounting rod is slightly closed towards the square groove through the through hole, the moving block drives the right rotating rod and the first sealing plate to rotate clockwise and the left and second sealing plates to rotate anticlockwise through the mounting rod, the gas amount is regulated, the angle distribution flow of the sealing plates is regulated, and the stable power generation effect is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of gas safety monitoring and control technology, concretely is a kind of concentration monitoring and regulation and control device of low concentration gas power generation. BACKGROUND

[0002] With the growth of energy demand and the emphasis on clean energy, gas power generation, as an effective way to utilize coal mine gas resources, has gradually been widely applied. Gas is a byproduct gas in the process of coal mining, and the reserves of low-concentration gas (usually referring to methane concentration less than 30%) are huge. If this part of gas can be effectively utilized for power generation, not only can it reduce the harm of greenhouse effect caused by direct discharge of gas to the environment, but also can realize the recycling of energy, with significant economic and environmental benefits. However, low-concentration gas power generation faces many technical challenges, and accurate monitoring and effective regulation of gas concentration are the key to ensuring the safe, stable and efficient operation of the power generation system.

[0003] In the prior art, a telescopic motor is installed at the top of the gas vertical pipe, a connecting rod is fixedly installed at the bottom of the telescopic motor, a blocking plug is fixedly installed at the bottom of the connecting rod, and the downward opening can be completely blocked. However, the internal opening of the upward part is larger than the piston, a gas outlet pipe is fixedly installed at the right side of the gas vertical pipe, when the telescopic end of the electric telescopic rod drives the piston to move upward away from the blocking opening, before the piston moves to the connection between the two pipes, gas can pass from the edge of the piston to the right side of the gas outlet pipe. The above-mentioned control of the piston is not accurate enough, and the flow of gas passing from the edge of the piston will significantly affect the power generation device, making the gas supply unstable, and further affecting the stable operation of the power generation device. SUMMARY

[0004] The utility model aims at providing a kind of concentration monitoring and regulation and control device of low concentration gas power generation, to solve the problems raised in the above background.

[0005] The utility model provides a kind of concentration monitoring and regulation device for low-concentration gas power generation, including pipeline, mounting bracket, fixedly installed in the top of pipeline;Electric telescopic link, it is set in the top of pipeline, and its fixed end is fixedly installed in the inner wall of mounting bracket;Movable block, it is set in the top of pipeline, and it is fixedly installed in the telescopic end of electric telescopic link;Square groove, the middle line position of movable block is equipped with square groove;Rotary rod, rotationally connected on pipeline, and the part extending out is set on square groove;First sealing plate, it is set in the inside of pipeline, and its side surface is fixedly installed with multiple annular rings, and annular ring is fixedly installed on the outer wall of rotary rod, second sealing plate, it is set in the inside of pipeline, and its side surface is also fixedly installed with multiple annular rings, and annular ring is sleeved on the outer wall of rotary rod, and mounting rod is fixedly installed on the annular ring close to top, and the extension direction of mounting rod is upwards, and another mounting rod is fixedly installed on the top end of rotary rod and fixedly installed with mounting rod, and the extension direction of another mounting rod is downwards.

[0006] Further, two through openings are formed in the movable block, and the through openings are symmetrically installed on two sides of the square groove.

[0007] Further, two mounting rods are respectively arranged on the through openings, and a gas power generation device is fixedly installed at one end of the pipeline.

[0008] Further, sliding blocks are symmetrically installed on two sides of the movable block, and sliding grooves that are matched with the sliding blocks are formed in the inner wall of the mounting bracket.

[0009] Further, the bottom end of the rotary rod is arranged on the inner bottom wall of the gas power generation device.

[0010] Further, an infrared absorption type gas concentration sensor is fixedly installed on the inner wall of the pipeline, and the infrared absorption type gas concentration sensor is in the form of annular ring.

[0011] Further, a control panel is fixedly installed on the outer wall of the gas power generation device, a buzzer is arranged on the control panel, and the control panel is electrically connected with the infrared absorption type gas concentration sensor.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、In the utility model, the movable block is pushed forward by the electric telescopic link, the through openings make the mounting rods close to the square groove, the movable block drives the rotary rod and the first sealing plate to rotate clockwise and the second sealing plate to rotate counterclockwise by the mounting rods, the amount of gas is regulated, the flow rate is adjusted by the angle of the sealing plates, and the power generation is stable and efficient.

[0014] 2、The infrared absorption type gas concentration sensor is arranged on the inner wall of the pipeline, can detect gas in all directions, and can monitor multi-directional concentration simultaneously by being annularly wound around the pipeline for one turn. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a connection structure schematic view of the pipeline and the infrared absorption type gas concentration sensor in the utility model;

[0017] Figure 3 It is a connection structure schematic view of the sliding block and the sliding groove in the utility model;

[0018] Figure 4 It is a connection structure schematic view of the electric telescopic rod and the mounting frame in the utility model;

[0019] Figure 5 It is a connection structure schematic view of the second sealing plate and the mounting rod in the utility model.

[0020] In the drawing: 1, pipeline; 2, gas power generation device; 3, electric telescopic rod; 4, mounting frame; 5, moving block; 6, rotating rod; 7, first sealing plate; 8, second sealing plate; 9, mounting rod; 10, square groove; 11, infrared absorption type gas concentration sensor; 12, control panel; 13, sliding block; 14, through port; 15, sliding groove. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0023] Please refer to Figures 1-5As shown, a low concentration gas power generation concentration monitoring and regulating device, including pipeline 1, mounting bracket 4, fixedly installed on the top of pipeline 1; electric telescopic rod 3, provided on the top of pipeline 1, its fixed end is fixedly installed on the inner wall of mounting bracket 4; moving block 5, provided on the top of pipeline 1, it is fixedly installed on the telescopic end of electric telescopic rod 3; square groove 10, the middle line position of moving block 5 is provided with square groove 10; rotating rod 6, rotatably connected on pipeline 1, the part extending out of it is provided on square groove 10; first sealing plate 7, provided inside pipeline 1, its side surface is fixedly installed with a plurality of annular rings, the annular rings are fixedly installed on the outer wall of rotating rod 6, second sealing plate 8, provided inside pipeline 1, its side surface is also fixedly installed with a plurality of annular rings, the annular rings are sleeved on the outer wall of rotating rod 6, the annular rings close to the top are fixedly installed with mounting rod 9, the extension direction of mounting rod 9 is upward, the other mounting rod 9 is fixedly installed on the top end of rotating rod 6 fixedly installed with mounting rod 9, the extension direction of the other mounting rod 9 is downward.

[0024] The telescopic end of electric telescopic rod 3 makes stretching movement forward, its telescopic end pushes moving block 5 to make stretching movement forward, rotating rod 6 keeps the original position unchanged, when the through hole 14 on moving block 5 can drive mounting rod 9 to move forward, mounting rod 9 slightly closes to square groove 10 on the through hole 14, moving block 5 drives right rotating rod 6 to rotate clockwise and first sealing plate 7 to rotate clockwise at the same time, moving block 5 drives second sealing plate 8 to rotate in the opposite direction through left mounting rod 9, so as to realize accurate regulation and control of gas passing amount, the corresponding gas flow can be matched by adjusting the angle of sealing plate, and the stability and efficiency of power generation process are ensured.

[0025] Referring to Figure 4 Two through holes 14 are provided on moving block 5, and the through holes 14 are symmetrically installed on both sides of square groove 10.

[0026] The mounting rod 9 is limited, the through hole 14 has a certain reserved space for the mounting rod 9, when the telescopic rod of electric telescopic rod 3 pushes moving block 5 to move, the reserved space of through hole 14 can make mounting rod 9 move in through hole 14.

[0027] Referring to Figure 1 Two mounting rods 9 are respectively provided on the through holes 14, and one end of pipeline 1 is fixedly installed with gas power generation device 2.

[0028] The gas power generation device 2 is fixedly installed at one end of the pipeline 1, and in combination with the design of the through hole 14 and the mounting rod 9, stable air intake can be provided for the gas power generation device 2. In low-concentration gas power generation, stable air intake amount and air intake concentration are crucial for efficient and stable operation of the power generation device. The mounting rod 9 guides the gas to pass through the through hole 14 into the device uniformly, so that the gas flow and concentration entering the gas power generation device 2 can be maintained at a relatively stable level. For example, stable air intake can ensure stable combustion process in the gas power generation device 2, avoid problems such as incomplete combustion and power fluctuation caused by unstable air intake, and thus improve power generation efficiency and power quality.

[0029] Referring to Figure 4 , the two sides of the moving block 5 are symmetrically installed with sliding blocks 13, and the inner wall of the mounting bracket 4 is provided with sliding grooves 15 matched with the sliding blocks 13.

[0030] The cooperation of the sliding blocks 13 and the sliding grooves 15 enables the moving block 5 to move stably in a specific direction within the mounting bracket 4. In the concentration monitoring and regulating device for low-concentration gas power generation, such stable linear motion is very important. For example, when it is necessary to monitor the gas concentration at different positions in the pipeline 1, the moving block 5 can be driven by the power device to move to the target position accurately through the sliding of the sliding blocks 13 in the sliding grooves 15. This is like a train running on a track, the sliding blocks 13 and the sliding grooves 15 limit the movement trajectory of the moving block 5, so that it will not deviate or sway, thereby ensuring the accuracy of the monitoring position.

[0031] Referring to Figure 4 , the bottom end of the rotating rod 6 is arranged at the inner bottom wall of the gas power generation device 2.

[0032] The bottom end of the rotating rod 6 is located at the inner bottom wall of the gas power generation device 2, which provides a solid support point for the rotating rod 6. The support of the inner bottom wall can keep the rotating rod 6 in an upright state during the operation of the device. For example, during the operation of the power generation device, vibration or airflow impact may occur, and the support at the bottom can prevent the rotating rod 6 from swaying or tilting due to these external forces. Such stable support helps the monitoring components on the rotating rod 6 to work accurately without measurement errors caused by instability of the rotating rod 6 itself.

[0033] Referring to Figures 1-2 , the inner wall of the pipeline 1 is fixedly installed with an infrared absorption type gas concentration sensor 11, and the infrared absorption type gas concentration sensor 11 is in the form of a ring.

[0034] The infrared absorption type gas concentration sensor 11 is installed in the inner wall of the pipeline 1 in a circular ring shape, and can detect the gas in the pipeline 1 in all directions. Because the ring structure can surround the pipeline 1 for one turn, the sensor can monitor the gas concentration in different directions of the pipeline 1 at the same time. In the low-concentration gas power generation process, the distribution of gas in the pipeline 1 may not be uniform, and local concentration differences may be caused by factors such as airflow and pipeline 1 shape. The circular ring-shaped sensor can effectively avoid the situation of missing concentration changes in other directions by monitoring only one direction, so as to more comprehensively and accurately obtain gas concentration information.

[0035] Referring to Figure 1 The outer wall of the gas power generation device 2 is fixed with a control panel 12, and the control panel 12 is provided with a buzzer. The control panel 12 is electrically connected with the infrared absorption type gas concentration sensor 11.

[0036] When the infrared absorption type gas concentration sensor 11 detects abnormal gas concentration, it will transmit a signal to the control panel 12, and the control panel 12 can immediately trigger the buzzer to issue an alarm. In the low-concentration gas power generation process, once the gas concentration exceeds the safe range, it may cause serious accidents such as explosion. For example, if the gas leaks or the concentration in a certain local area is too high, the buzzer can timely emit a sharp sound to remind the staff to take emergency measures such as evacuating personnel and stopping the power generation equipment, so as to effectively avoid safety accidents.

[0037] Working principle: the telescopic end of the electric telescopic rod 3 stretches forward, and the telescopic end pushes the moving block 5 to stretch forward. The rotating rod 6 remains in the original position. When the through hole 14 on the moving block 5 drives the mounting rod 9 to move forward, the mounting rod 9 slightly approaches the direction of the square groove 10 on the through hole 14. The moving block 5 drives the right rotating rod 6 to rotate clockwise and drives the first sealing plate 7 to rotate clockwise at the same time. The moving block 5 drives the second sealing plate 8 to rotate in the opposite direction through the left mounting rod 9, so as to realize accurate control of the gas passing amount. The angle of the sealing plate can be adjusted to match the corresponding gas flow, so as to ensure the stability and efficiency of the power generation process.

[0038] The infrared absorption type gas concentration sensor 11 is installed in the inner wall of the pipeline 1 in a circular ring shape, and can detect the gas in the pipeline 1 in all directions. Because the ring structure can surround the pipeline 1 for one turn, the sensor can monitor the gas concentration in different directions of the pipeline 1 at the same time. In the low-concentration gas power generation process, the distribution of gas in the pipeline 1 may not be uniform, and local concentration differences may be caused by factors such as airflow and pipeline 1 shape. The circular ring-shaped sensor can effectively avoid the situation of missing concentration changes in other directions by monitoring only one direction, so as to more comprehensively and accurately obtain gas concentration information.

Claims

1. A low concentration gas power generation concentration monitoring and regulating device, comprising a pipeline (1), characterized in that: a mounting frame (4) is fixedly installed on the top of the pipeline (1); an electric telescopic rod (3) is arranged on the top of the pipeline (1), and a fixed end of the electric telescopic rod (3) is fixedly installed on the inner wall of the mounting frame (4); a moving block (5) is arranged on the top of the pipeline (1), and the moving block (5) is fixedly installed on the telescopic end of the electric telescopic rod (3); a square groove (10) is arranged on the center line position of the moving block (5); a rotating rod (6) is rotatably connected to the pipeline (1), and an extended part of the rotating rod (6) is arranged on the square groove (10); a first sealing plate (7) is arranged in the pipeline (1), and a plurality of annular rings are fixedly installed on the side surface of the first sealing plate (7); the annular rings are fixedly installed on the outer wall of the rotating rod (6); a second sealing plate (8) is arranged in the pipeline (1), and a plurality of annular rings are fixedly installed on the side surface of the second sealing plate (8); the annular rings are sleeved on the outer wall of the rotating rod (6); an installation rod (9) is fixedly installed on the annular ring close to the top, the extension direction of the installation rod (9) is upward, another installation rod (9) is fixedly installed on the top end of the rotating rod (6), and the extension direction of the other installation rod (9) is downward. Two through openings (14) are arranged on the moving block (5), and the through openings (14) are symmetrically arranged on the two sides of the square groove (10). Two installation rods (9) are arranged on the through openings (14), respectively; and a gas power generation device (2) is fixedly installed on one end of the pipeline (1). Sliding blocks (13) are symmetrically arranged on the two sides of the moving block (5), and sliding grooves (15) are arranged on the inner wall of the mounting frame (4) and matched with the sliding blocks (13). The bottom end of the rotating rod (6) is arranged on the inner bottom wall of the gas power generation device (2). An infrared absorption type gas concentration sensor (11) is fixedly installed on the inner wall of the pipeline (1), and the infrared absorption type gas concentration sensor (11) is in a circular ring shape. A control panel (12) is fixedly installed on the outer wall of the gas power generation device (2), a buzzer is arranged on the control panel (12), and the control panel (12) is electrically connected with the infrared absorption type gas concentration sensor (11). ​ 2. The low concentration gas power generation concentration monitoring and regulating device according to claim 1, characterized in that: ​ 3. The low concentration gas power generation concentration monitoring and regulating device according to claim 2, characterized in that: ​ 4. The low concentration gas power generation concentration monitoring and regulating device according to claim 3, characterized in that: ​ 5. The low concentration gas power generation concentration monitoring and regulating device according to claim 4, characterized in that: ​ 6. The low concentration gas power generation concentration monitoring and regulating device according to claim 5, characterized in that: ​ 7. The low concentration gas power generation concentration monitoring and regulating device according to claim 6, characterized in that: ​

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