Landfill gas guiding and discharging device for landfill
By using a pressure regulating spring and piston block structure in the landfill gas conducting and discharge device of the landfill site, the problem that traditional landfill gas conducting and discharge system cannot be adjusted is solved, and a safe and stable landfill gas conducting and purification is achieved.
Patent Information
- Application Number
- CN202422487233.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-15
AI Technical Summary
Traditional landfill gas conduction and exhaust systems cannot automatically adjust the emission speed according to the pressure changes in the landfill, resulting in insufficient emissions of landfill gas or excessive pressure, increasing safety risks and environmental pollution.
A landfill gas conducting and discharge device is designed to automatically adjust the area of the conducting and discharge port through the pressure regulating spring and piston block structure, and combined with the condensing plate and gas purification parts, real-time discharge and purification of the landfill gas is achieved.
Effectively control the pressure in the landfill within the safe range, improve the landfill gas emission efficiency, reduce safety hazards, reduce greenhouse gas emissions, and improve gas calorific value and purification efficiency.
Smart Images
Figure CN223276903U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of landfill gas drainage, in particular to a landfill gas drainage device. Background Art
[0002] With the acceleration of urbanization and the improvement of people's living standards, the amount of municipal solid waste generated in cities is increasing. Currently, sanitary landfill is one of the main methods of waste disposal. During the landfill process, organic matter in the garbage gradually decomposes under the action of microorganisms, producing large amounts of landfill gas. Landfill gas is mainly composed of methane and carbon dioxide, with small amounts of nitrogen, oxygen, hydrogen sulfide, and other gases. The production of landfill gas not only causes increased pressure within the landfill, posing a threat to landfill safety, such as explosions and fires, but also the methane in landfill gas is a potent greenhouse gas, with a greenhouse effect approximately 25 times that of carbon dioxide. If landfill gas is directly discharged into the atmosphere, it will cause serious environmental pollution and exacerbate global climate change.
[0003] In order to ensure the safe operation of landfills and reduce the impact of landfill gas on the environment, landfill gas needs to be effectively drained and treated. Traditional landfill gas drainage systems usually adopt a fixed discharge port structure. This structure cannot automatically adjust the discharge speed according to the changes in the pressure in the landfill, resulting in insufficient landfill gas discharge when the pressure is low, affecting the landfill gas collection efficiency; when the pressure is too high, it may not be able to reduce the pressure in a timely and effective manner, increasing safety risks. Therefore, we propose a new type of landfill gas drainage device. Utility Model Content
[0004] (1) Technical problems solved
[0005] In response to the shortcomings of the existing technology, the utility model provides a landfill gas drainage device. By adjusting the drainage port area according to the internal pressure, the pressure in the landfill can be effectively controlled within a safe range in real time. When the pressure rises, the drainage port area is automatically increased to speed up the discharge of landfill gas and prevent safety accidents such as explosions and fires caused by excessive pressure.
[0006] (2) Technical solution
[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a landfill gas drainage device, comprising a connecting base, a plurality of gas guide pipes fixedly connected to the side wall of the connecting base, the plurality of gas guide pipes being arranged in a cylindrical shape, and a plurality of gas guide ports 1 and 2 being arranged through the gas guide pipes;
[0008] A cavity is defined within the connection base, a fixing seat is fixedly connected to the inner sidewall of the cavity, a plurality of pressure-adjusting springs are fixedly connected to the sidewall of the fixing seat, one end of each of the plurality of pressure-adjusting springs is fixedly connected to a piston block, and the plurality of piston blocks are slidably connected to the gas guide pipe;
[0009] An air guide main pipe is fixedly connected to the side wall of the connection base.
[0010] Preferably, the plurality of gas guiding pipes are arranged in a ring array.
[0011] Preferably, one end of the air guide main pipe is fixedly connected to a condensation box, an inner side wall of the condensation box is fixedly connected to a condensation plate, and an exhaust pipe is fixedly connected to the side wall of the condensation box.
[0012] Preferably, a liquid storage tank is fixedly connected to the inner bottom side wall of the condensation tank, a drain pipe is fixedly connected to the side wall of the liquid storage tank, and the drain pipe passes through the side wall of the condensation tank.
[0013] Preferably, a heat dissipation plate is fixedly connected to the side wall of the condensation plate.
[0014] Preferably, a gas purification component is provided on the exhaust pipe.
[0015] Preferably, the gas guide branch pipe and the gas guide main pipe are both made of high-density polyethylene.
[0016] (3) Beneficial effects
[0017] Compared with the prior art, the present invention provides a method with the following beneficial effects:
[0018] 1. The utility model is provided with an automatic adjustment structure for the area of the air guide port. Under the action of the elastic force of the pressure-regulating spring and the pressure change in the landfill, the left and right movement of the piston block can be controlled, and the area of the air guide port of the second air guide port can be controlled, thereby effectively controlling the pressure in the landfill within a safe range and reducing potential safety hazards.
[0019] 2. By providing a water vapor separation structure, the condensation plate of the utility model can effectively condense the moisture in the landfill gas into liquid water and discharge it, thereby reducing the moisture content in the gas. This helps to increase the calorific value of the landfill gas, making it more stable and efficient during combustion or other energy conversion processes. It can also remove some other impurities, such as dust and tiny particles. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a three-dimensional structural diagram of the utility model;
[0021] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present utility model;
[0022] Figure 3 It is a schematic diagram of the top cross-sectional structure of the utility model.
[0023] In the picture:
[0024] 1. Connecting base; 2. Gas branch pipe; 3. Gas port 1; 4. Fixing seat; 5. Gas port 2; 6. Pressure regulating spring; 7. Piston block; 8. Gas main pipe; 9. Condensation plate; 10. Liquid storage tank; 11. Condensation tank; 12. Drain pipe; 13. Heat sink; 14. Gas purification component; 15. Exhaust pipe. DETAILED DESCRIPTION
[0025] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.
[0026] The utility model provides a technical solution:
[0027] See also Figures 1 to 3 A landfill gas drainage device comprises a connecting base 1, a plurality of gas guide pipes 2 are fixedly connected to the side wall of the connecting base 1, the plurality of gas guide pipes 2 are arranged in a cylindrical shape, and a plurality of gas guide ports 1 3 and 2 5 are formed on the gas guide pipes 2;
[0028] A cavity is defined within the connection base 1, a fixing seat 4 is fixedly connected to the inner sidewall of the cavity, a plurality of pressure-adjusting springs 6 are fixedly connected to the sidewall of the fixing seat 4, one end of each of the plurality of pressure-adjusting springs 6 is fixedly connected to a piston block 7, and the plurality of piston blocks 7 are slidably connected to the gas guide pipe 2;
[0029] An air guide main pipe 8 is fixedly connected to the side wall of the connection base 1 .
[0030] In an optional embodiment, the plurality of gas guiding pipes 2 are arranged in a ring array.
[0031] It should be noted that the landfill gas in the landfill should be evenly discharged.
[0032] In an optional embodiment, one end of the air guide main pipe 8 is fixedly connected to a condensation box 11 , a condensation plate 9 is fixedly connected to the inner side wall of the condensation box 11 , and an exhaust pipe 15 is fixedly connected to the side wall of the condensation box 11 .
[0033] It should be noted that landfill gas usually contains a certain amount of moisture, which can cause many problems during transportation and utilization. The use of the condensation plate 9 can effectively condense the moisture in the landfill gas into liquid water and discharge it, thereby reducing the moisture content in the gas. This helps to increase the calorific value of the landfill gas, making it more stable and efficient during combustion or other energy conversion processes. It can also remove some other impurities, such as dust and tiny particles, the presence of which will affect the combustion performance of the landfill gas and the operating efficiency of the equipment.
[0034] In an optional embodiment, a liquid storage tank 10 is fixedly connected to the inner bottom side wall of the condensation tank 11 , a drain pipe 12 is fixedly connected to the side wall of the liquid storage tank 10 , and the drain pipe 12 passes through the side wall of the condensation tank 11 .
[0035] It should be noted that the moisture in the polluted gas is condensed into water droplets, which are then stored in the liquid storage tank 10 and discharged through the drain pipe 12 .
[0036] In an optional embodiment, a heat dissipation plate 13 is fixedly connected to the side wall of the condensation plate 9 .
[0037] It should be noted that the heat dissipation effect of the condensation plate 9 is improved.
[0038] In an optional embodiment, a gas purification component 14 is provided on the exhaust pipe 15 .
[0039] It should be noted that the gas purification element 14 adopts existing technology. The main components of landfill gas are methane and carbon dioxide. The greenhouse effect of methane is about 25 times that of carbon dioxide. By purifying landfill gas, removing impurities and harmful substances, and recycling combustible gases such as methane, the direct emission of greenhouse gases into the atmosphere can be greatly reduced, which has positive significance for alleviating global climate change.
[0040] In an optional embodiment, the gas branch pipe 2 and the gas main pipe 8 are both made of high-density polyethylene.
[0041] It should be noted that it has good corrosion resistance and can resist the erosion of various chemical substances in the landfill, including acids, alkalis, salts, etc. in the leachate. It has high strength and good toughness, can withstand the soil pressure inside the landfill and the external construction load, and is not easy to break or damage.
[0042] When used specifically, the working principle of the utility model is as follows:
[0043] During use, when the pressure in the landfill is too high, the internal gas will push against the piston block 7 to move toward the position of the fixed seat 4, and the pressure-regulating spring 6 will be compressed. As the position of the piston block 7 moves, the area of the gas guide port 2 5 leaking out increases, which can speed up the flow of landfill gas. When the internal pressure gradually decreases, under the elastic reset action of the pressure-regulating spring 6, the piston block 7 moves in the opposite direction, gradually blocking the ventilation area of the gas guide port 2 5. The area of the guide port is adjusted according to the internal pressure, which can effectively control the pressure in the landfill within a safe range in real time. When the pressure rises, the area of the guide port is automatically increased to speed up the discharge of landfill gas. Speed, the gas containing water vapor enters the condensation box 11, and then passes through the condensation plate 9, which can effectively condense the moisture in the landfill gas into liquid water and discharge it, thereby reducing the moisture content in the gas. The moisture in the gas condenses into water droplets, and then the condensed water droplets are stored in the liquid storage tank 10 and discharged through the drain pipe 12. Then the gas passes through the gas purification component 14. The gas purification component 14 uses an existing gas purifier to purify the landfill gas, remove impurities and harmful substances therein, and recycle combustible gases such as methane, which can greatly reduce the direct emission of greenhouse gases into the atmosphere, and has positive significance for alleviating global climate change.
[0044] In summary, the utility model adjusts the drainage port area according to the internal pressure of the landfill, which can effectively control the pressure in the landfill within a safe range in real time. When the pressure rises, the drainage port area is automatically increased to speed up the discharge of landfill gas, providing an efficient and reliable solution for landfill gas drainage.
[0045] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention that solve essentially the same technical problems and achieve essentially the same technical effects are included within the scope of protection of the present invention.
Claims
1. A landfill gas drainage device for a landfill site, comprising a connecting base (1), characterized in that: A plurality of air guide pipes (2) are fixedly connected to the side wall of the connection base (1), the plurality of air guide pipes (2) are arranged in a cylindrical shape, and the air guide pipes (2) are provided with a plurality of air guide ports 1 (3) and air guide ports 2 (5) arranged in a through-going manner; A cavity is provided inside the connection base (1), a fixing seat (4) is fixedly connected to the inner side wall of the cavity, a plurality of pressure-regulating springs (6) are fixedly connected to the side wall of the fixing seat (4), one end of the plurality of pressure-regulating springs (6) is fixedly connected to a piston block (7), and the plurality of piston blocks (7) are slidably connected to the gas guide pipe (2); An air guide main pipe (8) is fixedly connected to the side wall of the connection base (1).
2. The landfill gas exhaust device according to claim 1, characterized in that: The plurality of gas guide pipes (2) are arranged in a ring array.
3. The landfill gas exhaust device according to claim 2, characterized in that: One end of the air guide main pipe (8) is fixedly connected to a condensation box (11), an inner side wall of the condensation box (11) is fixedly connected to a condensation plate (9), and an exhaust pipe (15) is fixedly connected to the side wall of the condensation box (11).
4. The landfill gas exhaust device according to claim 3, characterized in that: A liquid storage tank (10) is fixedly connected to the inner bottom side wall of the condensation tank (11), a drainage pipe (12) is fixedly connected to the side wall of the liquid storage tank (10), and the drainage pipe (12) passes through the side wall of the condensation tank (11).
5. The landfill gas exhaust device according to claim 4, characterized in that: A heat dissipation plate (13) is fixedly connected to the side wall of the condensation plate (9).
6. The landfill gas exhaust device according to claim 5, characterized in that: A gas purification component (14) is provided on the exhaust pipe (15).
7. The landfill gas exhaust device according to claim 6, characterized in that: The gas guide branch pipe (2) and the gas guide main pipe (8) are both made of high-density polyethylene.