Mobile landfill environment detection equipment

Abstract

The invention relates to the field of environment detection equipment, in particular to mobile landfill environment detection equipment. The device comprises a base, a detection box and a sampling assembly. The front side and the rear side of the base are provided with moving parts, and the left side and the right side of the base are provided with a first drainage dual-purpose air pump and a signal transmitter respectively. The detection box is located on the base, a gas detector is arranged in the detection cavity, on one hand, the detection cavity is connected with a first pumping and discharging dual-purpose air pump to form a negative pressure environment and used for emptying the detection cavity before air inflow, and on the other hand, a deformation structure capable of extruding the detection cavity is arranged and used for shrinking the detection cavity after air inflow. A plurality of groups of sampling assemblies are detachably arranged on the detection box, and the sampling cavity is selectively communicated with the detection cavity and the external atmosphere. According to the invention, the detection box provided with a plurality of mounting stations and the detachable sampling assembly are matched to sample and detect the atmospheric environment of the landfill, the detection is efficient and accurate, and the workload of workers is reduced.

Description

Technical Field

[0001] The present invention relates to the field of environmental detection equipment, and in particular to a mobile landfill environmental detection equipment. Background Art

[0002] Air quality monitoring at landfills, particularly municipal solid waste landfills, is crucial and multifaceted. It's not just a regulatory requirement; it's fundamental to environmental protection, public health, and safety. The primary focus is monitoring and controlling landfill gas emissions.

[0003] Methane and carbon dioxide: The primary gases produced by anaerobic decomposition of waste are methane and carbon dioxide. Methane is a highly potent greenhouse gas, with a greenhouse gas potential 28-36 times that of carbon dioxide (based on a 100-year average). Measuring methane emissions is crucial for assessing landfills' contributions to climate change and developing mitigation strategies.

[0004] Malodorous gases: Landfill gas contains a variety of malodorous substances, including hydrogen sulfide, ammonia, mercaptans, and organic acids. These gases severely impact the quality of life of surrounding residents and trigger numerous complaints. Continuous monitoring helps identify the source of odor, assess its impact, and verify the effectiveness of deodorization measures.

[0005] Trace amounts of toxic and harmful gases: Landfill gas may also contain trace amounts of volatile organic compounds (VOCs) such as benzene, toluene, xylene, and chlorinated hydrocarbons, as well as trace amounts of toxic and harmful components such as mercury vapor. These substances pose carcinogenic, teratogenic, and mutagenic risks, posing a potential health threat to nearby residents and workers. Detecting these substances is fundamental to assessing health risks.

[0006] The Chinese patent with authorization announcement number CN220019549U discloses an automatic sampling and detection device for pollutant gases in landfills, including a base and a fixed frame. The fixed frame is fixedly connected to the top of the base, one side of the interior of the fixed frame is fixedly connected to an exhaust fan, a gas detector is provided on the top of the exhaust fan, one side of the fixed frame is fixedly connected to an air inlet tube, a filter is fixedly connected to the inside of the air inlet tube, and a cleaning group is provided on the fixed frame.

[0007] The above-mentioned landfill environment detection equipment has the following shortcomings: it is set with air intake on one side and air outlet on the other side, and gas detection is performed during air circulation. Therefore, the sample must reach a certain concentration to be detected by the detector, resulting in low detection sensitivity and limited detection effect. Summary of the Invention

[0008] In response to the problems existing in the background technology, a mobile landfill environment detection equipment is proposed. The present invention provides a detection box with multiple installation stations and a detachable sampling component to cooperate in sampling and detecting the atmospheric environment of the landfill. The detection is efficient and accurate, reducing the workload of the staff.

[0009] The present invention proposes a mobile landfill environment detection device, including a base, a detection box and a sampling assembly. Moving parts are provided on the front and rear sides of the base, and a dual-purpose air pump for extraction and discharge and a signal transmitter are provided on the left and right sides respectively. The detection box is located on the base, and a gas detector is provided in the detection chamber. On the one hand, the detection chamber forms a negative pressure environment by connecting to the dual-purpose air pump for extraction and discharge, which is used to empty the detection chamber before air intake. On the other hand, a deformation structure that can squeeze the detection chamber is provided, which is used to shrink the detection chamber after air intake. The sampling assembly is detachably provided in multiple groups on the detection box, and the sampling chamber selectively connects the detection chamber and the external atmosphere.

[0010] Preferably, the moving part adopts a crawler type.

[0011] Preferably, the detection box includes a box body; an exhaust seat connected to a dual-purpose air pump for extraction and discharge is located in the center of the detection cavity; a gas detector is arranged on the exhaust seat; and a deformation structure is arranged on the periphery of the exhaust seat.

[0012] Preferably, the deformation structure is configured as an annular airbag arranged along the inner wall of the box; the annular airbag realizes telescopic deformation by connecting to a dual-purpose air pump for extraction and discharge.

[0013] Preferably, a box cover is provided on the top of the box body; a plurality of mounting positions are provided on the box cover; through holes communicating with the detection cavity are provided on the mounting positions; and the sampling assembly is provided on the mounting positions and communicates with the detection cavity through the through holes.

[0014] Preferably, the sampling assembly includes a sampling cylinder; a vent tube with a valve extending into the through hole is provided at the bottom of the sampling cylinder, a circle of air inlet holes is provided on the side wall of the sampling cylinder, a ventilation adjustment component for controlling the opening and closing of the air inlet holes is provided inside, and a pressure adjustment component for controlling the inlet and outlet of gas samples is also provided.

[0015] Preferably, a ring-shaped groove is provided at the bottom of the inner wall of the sampling cylinder; the ventilation adjustment member includes a driving ring located in the groove and an adjustment ring driven to rotate by a driving member on the driving ring; the adjustment ring is provided with connecting ports corresponding one to one with the air inlet holes; a covering area for the air inlet holes is provided between adjacent connecting ports, and a filter is provided on the connecting port.

[0016] Preferably, the pressure regulating member comprises a dual-purpose air pump for extraction and discharge located on the sampling cylinder, whose extraction and discharge ports are connected to the top of the sampling chamber; a piston seat is provided inside the sampling cylinder opposite to the extraction and discharge ports.

[0017] Preferably, a mounting seat is provided on the mounting position; the sampling tube is detachably connected to the mounting seat; the mounting seat is annular, and a thread is provided inside the ring; the sampling tube is installed on the mounting seat through a threaded connection; and a handle is provided on the sampling tube.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects: a detection box with multiple installation stations and a detachable sampling assembly are provided to cooperate in sampling and testing the atmospheric environment of the landfill. Before testing, the detection box and the sampling assembly are both set to a vacuum state to reduce detection errors. During testing, the air inlet is controlled by rotating the adjustment ring so that the air inlet and the connecting port are opposite or staggered. The pressure in the sampling chamber is controlled by moving the piston seat up and down, thereby speeding up the sampling and testing process. In the sealed test chamber, the annular airbag is further inflated and bulged, squeezing the test chamber, so that the gas sample is further concentrated, ultimately achieving accurate and efficient detection of the gas sample. After the test is completed, the test sample can be returned to the sampling room, and the staff can remove the sampling assembly and take the sample back to the laboratory for further processing, reducing the workload of the staff. In addition, the equipment is easy to move, meeting the mobility requirements in the landfill environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of the mobile landfill environment monitoring equipment;

[0020] Figure 2 This is a disassembled diagram of the mobile landfill environment monitoring equipment;

[0021] Figure 3 It is a structural diagram of the detection box;

[0022] Figure 4 is a cross-sectional view of the detection box;

[0023] Figure 5 It is a structural diagram of the sampling component;

[0024] Figure 6 A cross-sectional view of the sampling assembly.

[0025] Figure numerals: 1. base; 2. moving part; 3. signal transmitter; 4. dual-purpose air pump for extraction and discharge; 5. detection box; 501. box body; 502. annular air bag; 503. exhaust seat; 504. gas detector; 505. box cover; 506. mounting seat; 507. through hole; 508. pipeline 2; 509. pipeline 1; 6. sampling assembly; 601. sampling cylinder; 602. air inlet; 603. dual-purpose air pump for extraction and discharge; 604. ventilation pipe; 605. piston seat; 606. adjustment ring; 607. connecting port; 608. drive ring. DETAILED DESCRIPTION

[0026] In the first embodiment, the present invention provides a mobile landfill environment detection device, such as Figure 1-Figure 3As shown, it includes a base 1, a detection box 5, and a sampling assembly 6. The base 1 is provided with movable parts 2 on both the front and rear sides, and a dual-purpose air pump 4 and a signal transmitter 3 on the left and right sides, respectively. The detection box 5 is located on the base 1, and a gas detector 504 is installed in the detection chamber. The detection chamber is connected to the dual-purpose air pump 4 to form a negative pressure environment, which is used to empty the detection chamber before air is admitted. On the other hand, a deformation structure that can squeeze the detection chamber is provided to shrink the detection chamber after air is admitted. The sampling assembly 6 is detachably provided in multiple groups on the detection box 5, and the sampling chamber selectively connects the detection chamber to the external atmosphere.

[0027] It should be further explained that the moving part 2 is of crawler type to meet the movement requirements in an uneven environment of the filling field and facilitate multi-point sampling.

[0028] like Figure 3-Figure 4 As shown, the detection box 5 includes a box body 501; an exhaust seat 503 connected to a dual-purpose air pump 4 is located in the center of the detection chamber; a gas detector 504 is arranged on the exhaust seat 503; and a deformation structure is arranged on the outer periphery of the exhaust seat 503.

[0029] Before testing, the air in the test chamber is evacuated using a dual-purpose air pump (4) to reduce detection errors. During testing, the deformable structure compresses the test chamber to reduce its volume, thereby increasing the concentration of the gas sample and improving detection sensitivity. The deformation amount can be set according to the test requirements.

[0030] It should be further explained that the deformation structure is configured as an annular airbag 502 arranged along the inner wall of the box body 501; the annular airbag 502 realizes telescopic deformation by being connected to a dual-purpose air pump 4 for extraction and extraction.

[0031] It should be further explained that dual-purpose air pump 1 (4) is connected to the annular airbag 502 via pipe 1 (509); it is also connected to the exhaust seat 503 via pipe 2 (508). Dual-purpose air pump 1 (4) has a dual-connector structure, which controls the exhaust seat 503's decompression and the expansion and contraction of the annular airbag 502.

[0032] It should be further explained that a cover 505 is provided on the top of the box body 501; the cover 505 is provided with multiple sets of mounting positions; each of the mounting positions is provided with a through hole 507 that connects to the detection cavity; and the sampling assembly 6 is provided on the mounting position and connects to the detection cavity through the through hole 507. The provision of multiple sets of mounting positions enables batched, independent sampling and testing, thereby improving the flexibility and practicality of the device.

[0033] like Figure 5-Figure 6As shown, the sampling assembly 6 includes a sampling cylinder 601; a vent tube 604 with a valve extending into the through hole 507 is provided at the bottom of the sampling cylinder 601, a circle of air inlet holes 602 are provided on the side wall of the sampling cylinder 601, a ventilation adjustment component for controlling the opening and closing of the air inlet holes 602 is provided inside, and a pressure adjustment component for controlling the inlet and outlet of gas samples is also provided.

[0034] It should be further explained that the bottom of the inner wall of the sampling tube 601 is provided with an annular groove; the ventilation adjustment member includes a drive ring 608 located within the groove and an adjustment ring 606 driven to rotate by a drive member on the drive ring 608; the adjustment ring 606 is provided with communication ports 607 corresponding one-to-one with the air inlet holes 602; a covering area for the air inlet holes 602 is provided between adjacent communication ports 607, and a filter is provided on the communication ports 607; during sampling, the adjustment ring 606 rotates so that the air inlet holes 602 and the communication ports 607 are opposite each other, thereby allowing air to enter. During testing, the adjustment ring 606 rotates so that the air inlet holes 602 and the communication ports 607 are staggered, thereby achieving a seal.

[0035] It should be further explained that the pressure regulating component includes a dual-purpose air pump 603 for extraction and discharge located on the sampling cylinder 601, whose extraction and discharge ports are connected to the top of the sampling chamber; a piston seat 605 is provided inside the sampling cylinder 601, opposite to the extraction and discharge ports; before sampling, the piston seat 605 is located at the bottom to empty the air in the sampling cylinder 601. During sampling, the piston seat 605 moves upward to draw external gas into the sampling chamber. During testing, the piston seat 605 moves downward to press external gas into the test chamber. After the test is completed, the piston seat 605 moves upward to draw the test sample into the sampling chamber for subsequent further experiments.

[0036] It should be further explained that the mounting position is provided with a mounting base 506; the sampling tube 601 is detachably connected to the mounting base 506; the mounting base 506 is annular and has threads disposed therein; the sampling tube 601 is threadedly mounted on the mounting base 506; and the sampling tube 601 is provided with a handle. After the test is completed, the staff removes the sampling tube 601 and takes the collected gas sample away for further testing.

[0037] Example 2: This example proposes a landfill environment detection method based on the mobile landfill environment detection equipment in Example 1. The steps are as follows:

[0038] S1. The staff installs the empty sampling assembly 6 on the installation position of the box 501; the box 501 must also be vacuumed in advance;

[0039] S2, the crawler-type moving part 2 starts to move and sample in sequence according to the sampling route and sampling point positions set in advance;

[0040] S3. After moving to the sampling point, the adjusting ring 606 is first rotated so that the air inlet 602 and the communication port 607 are opposite each other; the piston seat 605 moves upward to draw external gas into the sampling chamber; then the adjusting ring 606 is rotated so that the air inlet 602 and the communication port 607 are staggered; then the piston seat 605 moves downward, the valve of the vent pipe 604 is opened, and the collected gas sample is pressed into the detection chamber;

[0041] S4. The valve of the vent tube 604 is closed to form a sealed detection chamber. The annular airbag 502 is inflated and squeezes the detection chamber, further concentrating the gas sample. The gas detector 504 detects the components and content in the gas sample and transmits the results to the backend via the signal transmitter 3.

[0042] S5. After the test is completed, the valve of the vent pipe 604 is opened, and the piston seat 605 moves upward to draw the test sample into the sampling chamber;

[0043] S6. After completing the sampling and testing of all sampling points, the staff removes the sampling component 6 and takes the samples back to the laboratory for further processing.

[0044] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A mobile landfill environment detection device, characterized in that: include: A base (1), a movable member (2) is provided on both the front and rear sides of the base (1), and a dual-purpose air pump (4) for pumping and releasing and a signal transmitter (3) are provided on the left and right sides respectively; A detection box (5) is located on the base (1), and a gas detector (504) is provided in the detection chamber. The detection chamber is connected to a dual-purpose air pump (4) to form a negative pressure environment for emptying the detection chamber before air intake. On the other hand, a deformation structure capable of squeezing the detection chamber is provided for shrinking the detection chamber after air intake. And a sampling assembly (6), wherein the sampling assembly (6) is detachably arranged in multiple groups on the detection box (5), and the sampling cavity selectively connects the detection cavity and the external atmosphere.

2. The mobile landfill environment detection equipment according to claim 1, characterized in that: The moving part (2) adopts a crawler type.

3. The mobile landfill environment detection equipment according to claim 1, characterized in that: The detection box (5) includes a box body (501); an exhaust seat (503) connected to a dual-purpose air pump (4) is located at the center of the detection chamber; The gas detector (504) is arranged on the exhaust seat (503); The deformation structure is arranged on the outer periphery of the exhaust seat (503).

4. The mobile landfill environment detection equipment according to claim 3, characterized in that: The deformation structure is configured as an annular air bag (502) arranged along the inner wall of the box body (501); the annular air bag (502) realizes telescopic deformation by being connected to a dual-purpose air pump (4) for pumping and releasing air.

5. The mobile landfill environment detection equipment according to claim 3, characterized in that: A box cover (505) is provided on the top of the box body (501); a plurality of mounting positions are provided on the box cover (505); and through holes (507) communicating with the detection cavity are provided on the mounting positions. The sampling assembly (6) is arranged on the installation position and is connected to the detection cavity via the through hole (507).

6. The mobile landfill environment detection equipment according to claim 5, characterized in that: The sampling assembly (6) includes a sampling cylinder (601); a vent tube (604) with a valve extending into a through hole (507) is provided at the bottom of the sampling cylinder (601); a circle of air inlet holes (602) are provided on the side wall of the sampling cylinder (601); a ventilation adjustment member for controlling the opening and closing of the air inlet holes (602) is provided inside the sampling cylinder (601); and a pressure adjustment member for controlling the inlet and outlet of gas samples is also provided.

7. The mobile landfill environment detection equipment according to claim 6, characterized in that: A ring-shaped groove is provided at the bottom of the inner wall of the sampling cylinder (601); The ventilation adjustment member comprises a driving ring (608) located in the groove and an adjusting ring (606) driven to rotate by a driving member on the driving ring (608); the adjusting ring (606) is provided with communication openings (607) corresponding one-to-one to the air inlet holes (602); a covering area for the air inlet holes (602) is provided between adjacent communication openings (607), and a filter screen is provided on the communication openings (607).

8. The mobile landfill environment detection equipment according to claim 6, characterized in that: The pressure regulating member comprises a dual-purpose air pump (603) for extraction and discharge located on the sampling tube (601), the extraction and discharge air ports of which are connected to the top of the sampling chamber; a piston seat (605) is provided inside the sampling tube (601) and is opposite to the extraction and discharge air ports.

9. The mobile landfill environment detection equipment according to claim 6, characterized in that: A mounting seat (506) is provided on the mounting position; the sampling cylinder (601) is detachably connected to the mounting seat (506); The mounting seat (506) is annular, with threads provided inside the ring; the sampling tube (601) is mounted on the mounting seat (506) through a threaded connection; A handle is provided on the sampling cylinder (601).

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