A landfill methane zoning collection system

Abstract

The present invention discloses a landfill methane zoning collection system, comprising a methane tank and one or more collecting tanks installed on the outside of the methane tank; one or more first air inlet pipes are arranged on the surface of the collecting tank; a second air inlet pipe is arranged on the side of the collecting tank; the first air inlet pipe and the second air inlet pipe are arranged opposite to each other; a base is arranged on the outside of the methane tank; the present invention installs one or more collecting tanks on the outside of the methane tank, and arranges one or more first air inlet pipes on the surface of the collecting tank, arranges the second air inlet pipe on the side of the collecting tank, arranges the base on the outside of the methane tank, arranges the collecting tank on the upper end of the base, and arranges one or more first hydraulic lifting elements between the methane tank and the base; the collecting tank is lifted by the first hydraulic lifting element, and the first air inlet pipe and the second air inlet pipe are arranged opposite to each other, so as to realize stable collection of methane. Meanwhile, even if methane leaks in a certain collecting tank, it will not affect other collecting tanks, thereby greatly improving the reliability of the collection system.

Description

Technical Field

[0001] The invention relates to the technical field of landfill methane collection, and in particular to a landfill methane zoning collection system. Background Art

[0002] Landfill gas (LFG) is one of the degradation products of sanitary landfills. In addition to the main components CH and CO, more than 140 other substances have been detected. The uncontrolled migration and accumulation of these gases will cause secondary pollution and cause combustion and explosion accidents; landfill gas is also a type of greenhouse gas, which has a destructive effect on the atmospheric ozone layer. Data show that the greenhouse effect of landfill gas is more than 20 times higher than that of an equivalent volume of CO2.

[0003] The existing landfill biogas collection system consists of an outlet well, a gas collection cabinet, a gas pipeline and a collection station. The biogas flows to a specific gas outlet well by pressure difference, then reaches the gas collection cabinet through a gas collection pipe, and is finally transported to a gas collection station for purification. In addition, there are also landfills that use a sub-membrane collection system to collect landfill biogas, but this sub-membrane collection system has high requirements for oxygen leakage and regional gas stability. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a landfill methane zoning collection system; more than one collecting tank is installed on the outside of a methane tank, and more than one first air inlet pipe is arranged on the surface of the collecting tank, a second air inlet pipe is arranged on the side of the collecting tank, a base is arranged on the outside of the methane tank, the collecting tank is arranged on the upper end of the base, and more than one first hydraulic lifting element is arranged between the methane tank and the base; the collecting tank is lifted by the first hydraulic lifting element, and the first air inlet pipe and the second air inlet pipe are arranged opposite to each other, so as to realize the stable collection of methane.

[0005] The landfill methane zoning collection system of the present invention is realized by the following technical scheme: comprising a methane tank and one or more collection tanks installed outside the methane tank; one or more first air inlet pipes are arranged on the surface of the collection tank; a second air inlet pipe is arranged on the side of the collection tank;

[0006] The first air inlet pipe and the second air inlet pipe are arranged opposite to each other; a base is arranged outside the biogas tank; the collecting tank is arranged on the upper end of the base; and one or more first hydraulic lifting elements are arranged between the biogas tank and the base.

[0007] As a preferred technical solution, a biogas cavity is provided in the biogas tank; the other end of the first air inlet pipe penetrates the biogas tank and extends into the biogas cavity;

[0008] The other end of the first air inlet pipe is provided with a steering pipe with the pipe opening facing downward; the steering pipe is provided with a first motor; the steering pipe is provided with a first rotating shaft; the outer side of the first rotating shaft is provided with a Jiaolong blade which fits the inner wall of the steering pipe; the first motor is connected to the first rotating shaft;

[0009] The first air inlet pipe is provided with a second air inlet pipe and an exhaust device.

[0010] As a preferred technical solution, a first exhaust hole is installed on the upper surface of the collecting tank; a second exhaust pipe is installed on the side of the lower end of the collecting tank, and a first control valve is installed on the second exhaust pipe; and a biogas detection sensor is installed at the bottom of the collecting tank.

[0011] As a preferred technical solution, a second control valve is installed on the first exhaust pipe; a third control valve is installed on the second intake pipe; the second control valve and the third control valve are in a normally closed state;

[0012] A first Hall sensor and a first magnet corresponding to the second control valve are arranged on the outside of the biogas tank; a second Hall sensor and a second magnet corresponding to the third control valve are arranged on the outside of the collection tank;

[0013] When the first exhaust pipe is opposite to the second intake pipe, the first magnet is relatively attracted to the second Hall sensor; and the second magnet is relatively attracted to the first Hall sensor.

[0014] As a preferred technical solution, at least one first avoidance hole is provided on the outside of the biogas tank; the first avoidance hole is provided on the outside of one end of the first air inlet pipe; at least one second hydraulic lifting element is installed in the first avoidance hole; a first sealing ring is installed on the other end of the second hydraulic lifting element; the first sealing ring is provided on the outside of the first air inlet pipe;

[0015] One or more second avoidance holes are installed on the side of the collecting tank; when the first exhaust pipe is opposite to the second intake pipe, the second avoidance holes are arranged opposite to the first avoidance holes, and the diameters of the second avoidance holes and the first avoidance holes are consistent.

[0016] As a preferred technical solution, an upper cover is installed on the upper end of the biogas tank;

[0017] A fixing ring is installed in the biogas chamber; a second sealing ring is arranged on the surface of the fixing ring; an upper cover is installed on the upper end of the fixing ring, and the second sealing ring is fitted with the upper cover; one or more third hydraulic lifting elements are arranged on the surface of the fixing ring; one or more positioning holes are arranged on the lower surface of the upper cover; the positioning holes are installed opposite to the third hydraulic lifting elements;

[0018] A second motor is arranged on the upper surface of the upper cover; a second rotating shaft connected to the second motor is arranged on the lower surface of the upper cover; and one or more stirring rods are installed at the other end of the second rotating shaft.

[0019] As a preferred technical solution, a power supply and a remote control mainboard connected to the power supply are installed in the biogas tank and the base.

[0020] The beneficial effects of the present invention are:

[0021] 1. Install more than one collecting tank on the outside of the biogas tank, set more than one first air inlet pipe on the surface of the collecting tank, set a second air inlet pipe on the side of the collecting tank, set a base on the outside of the biogas tank, set the collecting tank on the upper end of the base, and set more than one first hydraulic lifting element between the biogas tank and the base; lift the collecting tank by the first hydraulic lifting element, set the first air inlet pipe and the second air inlet pipe opposite to each other, so as to realize stable collection of biogas. Even if biogas leaks in a certain collecting tank, it will not affect other collecting tanks, which greatly improves the reliability of the collection system;

[0022] 2. Install the first exhaust hole on the upper surface of the collection tank, install the second exhaust pipe on the side of the lower end of the collection tank, install the first control valve on the second exhaust pipe, and install a biogas detection sensor at the bottom of the collection tank. Since the mass of biogas is lighter than air, the collection tank is filled from top to bottom. When the detection sensor detects biogas, the second exhaust slot is automatically closed to prevent biogas leakage;

[0023] 3. By installing the second control valve on the first exhaust pipe and the third control valve on the second intake pipe, and the second control valve and the third control valve are in a normally closed state, a first Hall sensor and a first magnet corresponding to the second control valve are arranged on the outside of the biogas tank, and a second Hall sensor and a second magnet associated with the third control valve are arranged on the outside of the collection tank, the collection tank is lifted by the first hydraulic lifting element, the first intake pipe and the second intake pipe are arranged oppositely, the first magnet and the second Hall sensor are relatively attracted; the second magnet and the first Hall sensor are relatively attracted, and the second control valve and the third control valve are in a normally open state, so as to realize biogas transportation, which has the characteristics of high efficiency and intelligence;

[0024] 4. By setting more than one first avoidance hole on the outside of the biogas tank, setting the first avoidance hole on the outside of one end of the first air inlet pipe, installing more than one second hydraulic lifting element in the first avoidance hole, installing the first sealing ring at the other end of the second hydraulic lifting element, setting the first sealing ring on the outside of the first air inlet pipe, and installing more than one second avoidance hole on the side of the collecting tank, when the first exhaust pipe is opposite to the second air inlet pipe, the second avoidance hole is opposite to the first avoidance hole, and the diameter of the second avoidance hole is consistent with that of the first avoidance hole, the second hydraulic lifting element is started to push the first sealing ring into the second avoidance hole, and is sleeved on the outside of the second air inlet pipe to prevent biogas leakage during biogas transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 Illustration of a biogas tank Figure 1 ;

[0027] Figure 2 is a schematic diagram of a collection tank;

[0028] Figure 3 A schematic diagram of a hidden upper cover of a landfill methane zoning collection system according to the present invention;

[0029] Figure 4 Schematic diagram of the connection between the biogas tank and the base Figure 3 ;

[0030] Figure 5 is a schematic diagram of the upper cover;

[0031] Figure 6 Schematic diagram of the steering tube. DETAILED DESCRIPTION

[0032] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0033] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0034] In the description of the present invention, it is necessary to understand that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, in the description of the present invention, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0036] Terms such as "upper", "above", "lower", "below", etc. used in the present invention to indicate spatial relative positions are used for the purpose of convenience to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. Terms of spatial relative position may be intended to include different orientations of the device in use or operation in addition to the orientation shown in the drawings. For example, if the device in the figure is turned over, the unit described as being "below" or "beneath" other units or features will be located "above" the other units or features. Therefore, the exemplary term "below" can encompass both the above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptors used herein interpreted accordingly.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "disposed", "socketed", "connected", "through", "plugged" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] like Figure 1-Figure 6 As shown, a landfill methane zoning collection system of the present invention comprises a methane tank 6 and one or more collecting tanks 4 installed on the outside of the methane tank 6; one or more first air inlet pipes 9 are arranged on the surface of the collecting tank 4; a second air inlet pipe 15 is arranged on the side of the collecting tank 4; the first air inlet pipe 9 and the second air inlet pipe 15 are arranged opposite to each other; a base 25 is arranged on the outside of the methane tank 6; the collecting tank 4 is arranged on the upper end of the base 25; and one or more first hydraulic lifting elements 26 are arranged between the methane tank 6 and the base 25.

[0039] In this embodiment, a biogas chamber 5 is provided in the biogas tank 6; the other end of the first air inlet pipe 9 penetrates the biogas tank 6 and extends into the biogas chamber 5; a steering pipe 33 with its nozzle facing downward is installed at the other end of the first air inlet pipe 9; a first motor 10 is installed on the steering pipe 33; a first rotating shaft 27 is installed in the steering pipe 33; a dragon blade 28 that fits the inner wall of the steering pipe 33 is installed on the outer side of the first rotating shaft 27; the first motor 10 is connected to the first rotating shaft 27; a second exhaust hole 11 and an exhaust device 12 are installed on the first air inlet pipe 9 to realize two-way absorption of biogas, and at the same time, the dragon blade 28 on the inner wall of the steering pipe 33 rotates to prevent garbage in the biogas chamber 5 from entering the first air inlet pipe 9 from the steering pipe 33, thereby protecting the exhaust device 12 from damage.

[0040] In this embodiment, a first exhaust hole 16 is installed on the upper surface of the collecting tank 4; a second exhaust pipe 19 is installed on the side of the lower end of the collecting tank, and a first control valve 18 is installed on the second exhaust pipe 19; and a biogas detection sensor 17 is installed at the bottom of the collecting tank 4.

[0041] In this embodiment, a second control valve 13 is installed on the first air intake pipe 9; a third control valve 14 is installed on the second air intake pipe 15; the second control valve 13 and the third control valve 14 are in a normally closed state; a first Hall sensor 23-1 and a first magnet 23-2 corresponding to the second control valve 13 are arranged on the outside of the biogas tank 6; a second Hall sensor 24-2 and a second magnet 24-1 associated with the third control valve 14 are arranged on the outside of the collecting tank 4; when the first air intake pipe 9 and the second air intake pipe 15 are opposite to each other, the first magnet 23-2 and the second Hall sensor 24-2 are relatively attracted; the second magnet 24-1 and the first Hall sensor 23-1 are relatively attracted.

[0042] In the present embodiment, at least one first avoidance hole 30 is provided on the outside of the biogas tank 6; the first avoidance hole 30 is provided on the outside of one end of the first air inlet pipe 9; at least one second hydraulic lifting element 29 is installed in the first avoidance hole 30; a first sealing ring 311 is installed on the other end of the second hydraulic lifting element 29; the first sealing ring 311 is provided on the outside of the first air inlet pipe 9; at least one second avoidance hole 32 is installed on the side of the collecting tank 4; when the first air inlet pipe 9 is opposite to the second air inlet pipe 15, the second avoidance hole 32 is provided opposite to the first avoidance hole 30, and the diameter of the second avoidance hole 32 is consistent with that of the first avoidance hole 30.

[0043] In this embodiment, an upper cover 291 is installed on the upper end of the biogas tank 6; a fixing ring 7 is installed in the biogas chamber 5; a second sealing ring 8 is arranged on the surface of the fixing ring 7; the upper cover 291 is installed on the upper end of the fixing ring 7, and the second sealing ring 8 is in contact with the upper cover 291; one or more third hydraulic lifting elements 20 are arranged on the surface of the fixing ring 7; one or more positioning holes 34 are arranged on the lower surface of the upper cover 291; the positioning holes 34 are installed opposite to the third hydraulic lifting elements 20; a second motor 23 is arranged on the upper surface of the upper cover 291; a second rotating shaft 322 connected to the second motor 23 is arranged on the lower surface of the upper cover 291; one or more stirring rods 31 are installed on the other end of the second rotating shaft 322; a power supply and a remote control mainboard (not shown) connected to the power supply (not shown) are installed in the biogas tank 6 and the base 25.

[0044] The working process is as follows:

[0045] The second motor controls the second rotating shaft to drive the stirring rod to rotate, so as to promote the garbage in the biogas cavity to volatilize biogas quickly. The exhaust device discharges the biogas from the first air inlet pipe through the second air inlet pipe and the turning hole. The first hydraulic lifting element is controlled by the remote control mainboard to drive the biogas tank on the base to rise. The first air inlet pipe is arranged opposite to the second air inlet pipe, and the first magnet is relatively attracted to the second Hall sensor; the second magnet is relatively attracted to the first Hall sensor, and the second control valve and the third control valve are in a normally open state. At the same time, the second avoidance hole is arranged opposite to the first avoidance hole, and the diameter of the second avoidance hole is consistent with that of the first avoidance hole. The second hydraulic lifting element is started to push the first sealing ring into the second avoidance hole, and is sleeved on the outside of the second air inlet pipe to discharge the biogas from the biogas cavity to the collection tank. At this time, a biogas detection sensor is installed at the bottom of the collection tank. Since the mass of biogas is lighter than air, the collection tank is filled from top to bottom. When the detection sensor detects biogas, the second exhaust slot is automatically closed to complete the zoning collection of biogas and prevent biogas leakage; the first hydraulic lifting element is reset, the second Hall sensor is disconnected from the first Hall sensor, and the biogas transmission is interrupted.

[0046] The above is only for the specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. A landfill methane zoning collection system, characterized by: It comprises a biogas tank (6) and one or more collecting tanks (4) installed outside the biogas tank (6); one or more first air inlet pipes (9) are arranged on the surface of the collecting tank (4); and a second air inlet pipe (15) is arranged on the side of the collecting tank (4); The first air inlet pipe (9) and the second air inlet pipe (15) are arranged opposite to each other; a base (25) is arranged outside the biogas tank (6); the collection tank (4) is arranged on the upper end of the base (25); and one or more first hydraulic lifting elements (26) are arranged between the biogas tank (6) and the base (25); A biogas chamber (5) is provided in the biogas tank (6); the other end of the first air inlet pipe (9) penetrates the biogas tank (6) and extends into the biogas chamber (5); A steering tube (33) with a downwardly facing nozzle is mounted on the other end of the first air inlet pipe (9); a first motor (10) is mounted on the steering tube (33); a first rotating shaft (27) is mounted inside the steering tube (33); a dragon blade (28) is mounted outside the first rotating shaft (27) and is in contact with the inner wall of the steering tube (33); the first motor (10) is connected to the first rotating shaft (27); The first air inlet pipe (9) is provided with a second exhaust hole (11) and an exhaust device (12) to achieve two-way absorption of biogas; A first exhaust hole (16) is installed on the upper surface of the collection tank (4); a second exhaust pipe (19) is installed on the side of the lower end of the collection tank, and a first control valve (18) is installed on the second exhaust pipe (19); and a biogas detection sensor (17) is installed on the bottom of the collection tank (4); A second control valve (13) is installed on the first air intake pipe (9); a third control valve (14) is installed on the second air intake pipe (15); the second control valve (13) and the third control valve (14) are in a normally closed state; A first Hall sensor (23-1) and a first magnet (23-2) corresponding to the second control valve (13) are arranged on the outside of the biogas tank (6); a second Hall sensor (24-2) and a second magnet (24-1) corresponding to the third control valve (14) are arranged on the outside of the collection tank (4); When the first air intake pipe (9) and the second air intake pipe (15) are opposite to each other, the first magnet (23-2) and the second Hall sensor (24-2) are attracted to each other; and the second magnet (24-1) and the first Hall sensor (23-1) are attracted to each other; One or more first avoidance holes (30) are arranged on the outside of the biogas tank (6); the first avoidance holes (30) are arranged on the outside of one end of the first air inlet pipe (9); one or more second hydraulic lifting elements (29) are installed in the first avoidance holes (30); a first sealing ring (311) is installed on the other end of the second hydraulic lifting element (29); the first sealing ring (311) is arranged on the outside of the first air inlet pipe (9); One or more second avoidance holes (32) are installed on the side of the collection tank (4); when the first air intake pipe (9) and the second air intake pipe (15) are opposite to each other, the second avoidance holes (32) and the first avoidance holes (30) are arranged opposite to each other, and the diameters of the second avoidance holes (32) and the first avoidance holes (30) are the same; An upper cover (291) is installed at the upper end of the biogas tank (6); A fixing ring (7) is installed in the biogas chamber (5); a second sealing ring (8) is arranged on the surface of the fixing ring (7); an upper cover (291) is installed on the upper end of the fixing ring (7), and the second sealing ring (8) is in close contact with the upper cover (291); one or more third hydraulic lifting elements (20) are arranged on the surface of the fixing ring (7); one or more positioning holes (34) are arranged on the lower surface of the upper cover (291); the positioning holes (34) are installed relative to the third hydraulic lifting elements (20); A second motor (23) is disposed on the upper surface of the upper cover (291); a second rotating shaft (322) connected to the second motor (23) is disposed on the lower surface of the upper cover (291); and one or more stirring rods (31) are mounted on the other end of the second rotating shaft (322).

2. The landfill methane zoning collection system according to claim 1 is characterized by: A power supply and a remote control mainboard connected to the power supply are installed in the biogas tank (6) and the base (25).

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