A device for measuring oxygen concentration in waste fermentation material

Abstract

The utility model discloses a kind of waste fermentation material internal oxygen concentration measuring devices, including gas sampling bottle;Still including the upper end of gas sampling bottle is sealed with sealing cover, sealing cover is provided with connecting port, first connecting hose is connected through on connecting port, the other end of first connecting hose is connected with folding pipe in through mode, the other end of folding pipe is connected with second connecting hose in through mode, the outer wall of first connecting hose is fixedly connected with connecting seat, four limit rods are fixedly connected to the one end of connecting seat close to second connecting hose.The utility model is through in the process of using, by opening second air pump, limit rod is subjected to the thrust of delivery in communicating pipe, to move connecting seat and drive folding pipe to be unfolded to deliver gas sampling bottle to fixed position, solve the problem that gas sampling bottle can exist sinking inconveniently in compost material, and by the multilayer filter structure being provided on second connecting hose, the quality and efficiency of gas collection can be effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of waste treatment, specifically relating to a device for measuring the oxygen concentration in fermented waste materials. Background Technology

[0002] Currently, the oxygen concentration in waste fermentation materials is mainly tested directly by inserting a portable oxygen detector into the waste fermentation material, or by extracting gas samples using an airtight syringe and analyzing them in the laboratory. However, due to the high moisture content inside the waste fermentation material and the generation of corrosive gases such as ammonia and hydrogen sulfide during composting, the lifespan of the sensor is affected. For airtight syringes that use needles for sampling, they can only obtain the oxygen concentration value of the material near the needle, with a small radiation range. To accurately obtain the oxygen concentration in the entire pile of material, a high number of sampling points are required, which greatly increases the sampling time and economic cost. Therefore, in existing technologies, gas sampling cylinders are used for sampling and testing.

[0003] In the traditional process of measuring oxygen concentration in waste fermentation materials, when the gas sampling bottle is placed inside the waste fermentation material, it may sink due to material characteristics (such as moisture content, density, etc.) and its own gravity, making it difficult to accurately place it at the predetermined sampling position. This affects the accuracy and representativeness of the gas sampling. Existing technologies lack effective filtration structures when collecting gas from inside waste fermentation materials. The collected gas may contain impurities such as moisture, ammonia, hydrogen sulfide and other corrosive gases, as well as solid particles. These impurities not only affect the accuracy of oxygen concentration detection but may also damage the detection equipment, reduce its service life, and affect the efficiency of gas collection by clogging the air intake.

[0004] Therefore, existing oxygen measurement devices for waste fermentation materials have problems such as inconvenient position control of the gas sampling bottle inside the waste fermentation material and issues with gas collection quality and efficiency. Utility Model Content

[0005] To overcome the problems of inconvenient position control of the gas sampling bottle inside the waste fermentation material and issues with gas collection quality and efficiency in existing waste fermentation material oxygen measurement devices, a new waste fermentation material oxygen concentration measurement device is proposed.

[0006] The technical solution of this utility model is as follows: a device for measuring the oxygen concentration in waste fermentation materials, including a gas sampling bottle; the upper end of the gas sampling bottle is sealed with a sealing cap, the sealing cap is provided with a connection port, a first connecting hose is connected through the connection port, the other end of the first connecting hose is connected through a folded tube, the other end of the folded tube is connected through a second connecting hose, a connecting seat is fixed to the outer wall of the first connecting hose, four limiting rods are fixed to the end of the connecting seat near the second connecting hose, a connecting box is fixed to the outer wall of the second connecting hose, four connecting tubes are fixed through the end of the connecting box near the first connecting hose, the limiting rods and connecting tubes correspond one-to-one and the limiting rods are slidably disposed in the connecting tubes to form a sealed connection, a first air pump for providing suction and a drying and ammonia removal filter box and an adsorption box for corrosive gases such as ammonia and hydrogen sulfide are provided on the second connecting hose, a third connecting hose is fixed through the outer wall of the second connecting hose, a second air pump is provided on the third connecting hose, and the second air pump and the connecting box are interconnected.

[0007] Preferably, the drying and ammonia removal filter box, the ammonia and hydrogen sulfide adsorption box, and the first air pump are connected in sequence from back to front.

[0008] Preferably, the upper gas output port of the first air pump is equipped with an oxygen detection device, the oxygen detection device model is Biogas 5000, and the second connecting hose is equipped with a first sealing valve.

[0009] Preferably, a first filter plate is fixed to the inner wall of the gas sampling cylinder, and a second filter plate is fixed to the lower end of the connection port located inside the gas sampling cylinder.

[0010] Preferably, the lower end of the gas sampling cylinder has a rounded corner structure, and the diameter of the gas sampling hole is 1-1.5mm.

[0011] Preferably, a fourth connecting hose is fixedly connected to the upper end of the connecting box, and a third sealing valve is provided on the fourth connecting hose. The third sealing valve and the third connecting hose are connected in a through manner.

[0012] Preferably, a second sealing valve is provided at the connection point between the third connecting hose and the second air pump.

[0013] The beneficial effects of this utility model are as follows: During use, by turning on the second air pump, the limiting rod is subjected to the thrust of the conveying inside the connecting pipe, thereby causing the connecting seat to move and drive the folding tube to unfold and transport the gas collection bottle to a fixed position. This solves the problem that the gas collection bottle may sink and be inconvenient inside the waste fermentation material. In addition, the multi-layer filter structure set on the second connecting hose can effectively improve the quality and efficiency of gas collection. Attached Figure Description

[0014] Figure 1The diagram shown is a three-dimensional structural schematic of this utility model;

[0015] Figure 2 The diagram shown is a three-dimensional disassembled structural schematic of this utility model;

[0016] Figure 3 The diagram shown is a cross-sectional perspective view of the present invention.

[0017] Figure 4 This utility model is shown. Figure 3 A magnified three-dimensional structural diagram of point A;

[0018] Figure 5 This utility model is shown. Figure 3 A magnified three-dimensional structural diagram of point B.

[0019] The markings in the attached diagram are as follows: 1. Gas sampling cylinder; 101. Gas sampling port; 102. First filter plate; 103. Sealing cap; 104. Connection port; 105. Second filter plate; 106. First connecting hose; 107. Second connecting hose; 2. Folded tube; 201. Connecting seat; 202. Limiting rod; 203. Connecting box; 204. Connecting pipe; 3. Drying and ammonia removal filter box; 301. Adsorption box for corrosive gases such as ammonia and hydrogen sulfide; 302. First gas pump; 303. Oxygen detection device; 304. First sealing valve; 4. Third connecting hose; 401. Second sealing valve; 402. Second gas pump; 403. Fourth connecting hose; 404. Third sealing valve. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figures 1-5This utility model provides an embodiment: an oxygen concentration measuring device for waste fermentation materials, including a gas sampling bottle 1; and a sealing cap 103 sealed at the upper end of the gas sampling bottle 1, with a connection port 104 on the sealing cap 103, a first connecting hose 106 connected through the connection port 104, a folded tube 2 connected through the other end of the first connecting hose 106, and a second connecting hose 107 connected through the other end of the folded tube 2. A connecting seat 201 is fixed to the outer wall of the first connecting hose 106, and four limiting rods 202 are fixed to the end of the connecting seat 201 near the second connecting hose 107. A connecting box 203 is fixed to the outer wall of the second connecting hose 107, and four connecting tubes 204 are fixedly connected through the end of the connecting box 203 near the first connecting hose 106. The limiting rods 202 and the connecting tubes 204 correspond one-to-one, and the limiting rods 202 are slidably disposed on the connecting... The connecting pipe 204 is sealed. The second connecting hose 107 is equipped with a first air pump 302 for providing suction, a filter box 3 for drying and removing ammonia, and an adsorption box 301 for corrosive gases such as ammonia and hydrogen sulfide. The outer wall of the second connecting hose 107 is fixedly connected to a third connecting hose 4. The third connecting hose 4 is equipped with a second air pump 402. The second air pump 402 and the connecting box 203 are interconnected. During use, by turning on the second air pump 402, the limiting rod 202 is pushed by the force conveyed in the connecting pipe 204, which causes the connecting seat 201 to move and drive the folding tube 2 to unfold, transporting the gas collection bottle 1 to a fixed position. This solves the problem that the gas collection bottle 1 may sink and be inconvenient inside the waste fermentation material. In addition, the multi-layer filtration structure on the second connecting hose 107 can effectively improve the quality and efficiency of gas collection.

[0022] Please see Figures 1-3 In this embodiment, the drying and ammonia removal filter box 3, the ammonia and hydrogen sulfide corrosive gas adsorption box 301, and the first air pump 302 are connected sequentially from back to front. The suction generated by the first air pump 302 causes the gas on the second connecting hose 107 to pass through the drying and ammonia removal filter box 3 and the ammonia and hydrogen sulfide corrosive gas adsorption box 301 in sequence. An oxygen detection device 303 is provided at the upper gas output port of the first air pump 302. The oxygen detection device 303 is a Biogas 5000. A first sealing valve 304 is provided on the second connecting hose 107. The oxygen detection device 303 detects the gas on the first air pump 302. A second sealing valve 401 is provided at the connection between the third connecting hose 4 and the second air pump 402.

[0023] Please see Figures 3-5In this embodiment, a first filter plate 102 is fixedly connected to the inner wall of the gas sampling cylinder 1, and a second filter plate 105 is fixedly connected to the lower end of the connection port 104 located inside the gas sampling cylinder 1. The fertilizer is filtered twice through the first filter plate 102 and the second filter plate 105. The lower end of the gas sampling cylinder 1 has a rounded corner structure, and the diameter of the gas sampling hole 101 is 1-1.5mm. A fourth connecting hose 403 is fixedly connected to the upper end of the connecting box 203. A third sealing valve 404 is provided on the fourth connecting hose 403. The third sealing valve 404 and the third connecting hose 403 are connected in a through manner.

[0024] When using the device, place the gas sampling cylinder 1 at the sampling site. To facilitate control of the position of the gas sampling cylinder 1 inside the waste fermentation material, first close all the sealing valves on the device, then open the third sealing valve 404 on the fourth connecting hose 403. This allows the second air pump 402 to inject air into the connecting box 203 connected to the fourth connecting hose 403, thereby pushing the sliding limit rod 202 on the connecting pipe 204 forward. This causes the connecting seat 201 to stretch and extend the folding tube 2. When the gas sampling cylinder 1 sinks into the composting area, open the third sealing valve 404. The second sealing valve 401 allows the second air pump 402 to deliver air to the gas sampling port 101 on the gas sampling cylinder 1 through the pipe connected by the third connecting hose 4. This prevents liquid or particles at the composting site from clogging the gas sampling port 101. At this time, the second air pump 402 uses a short-duration, low-flow blowing method to avoid excessive disturbance to the gas environment inside the compost. During use, the position of the gas sampling cylinder 1 at the composting site is controlled by opening or closing the third sealing valve 404, facilitating subsequent gas detection and collection at different water levels. This is useful when it is necessary to sample and detect the gas inside the fermented waste material. At this time, the second air pump 402, the third sealing valve 404, and the second sealing valve 401 are closed, so that the second air pump 402 stops injecting gas into the gas collection cylinder 1. Then, the first sealing valve 304 and the first air pump 302 are opened, so that suction is generated in the gas collection cylinder 1, thereby adsorbing the gas inside the waste fermentation material through the gas collection port 101. A three-layer filtration structure is formed by the gas collection port 101, the first filter plate 102, and the second filter plate 105, thereby preventing the problem of compost particles clogging the first connecting hose 106. The gas is drawn from the first connecting hose 106 into the folded tube 2 and then into the second connecting hose 106. In hose 107, the gas is then filtered by drying and ammonia removal filter box 3 and ammonia and hydrogen sulfide adsorption box 301. Then, the concentration of the filtered gas extracted by the first gas pump 302 is detected by oxygen detection device 303. The extraction and detection can be performed continuously for 3-5 times, and the average value is calculated as the final test result. After use, the first sealing valve 304 is closed and the second sealing valve 401 and the second gas pump 402 are opened to clear the second connecting hose 107 and the first connecting hose 106. The sealing cap 103 can be rotated off the gas sampling bottle 1 for easy subsequent cleaning.

Claims

1. A device for measuring oxygen concentration in waste fermentation materials, comprising a gas sampling bottle (1); characterized in that: It also includes a sealing cap (103) at the upper end of the gas sampling cylinder (1), a connection port (104) on the sealing cap (103), a first connecting hose (106) connected through the connection port (104), a folded tube (2) connected through the other end of the first connecting hose (106), a second connecting hose (107) connected through the other end of the folded tube (2), a connecting seat (201) fixed to the outer wall of the first connecting hose (106), four limiting rods (202) fixed to the end of the connecting seat (201) near the second connecting hose (107), and a connecting box (203) fixed to the outer wall of the second connecting hose (107). One end of the first connecting hose (106) is fixedly connected to four connecting pipes (204). The limiting rod (202) and the connecting pipes (204) correspond one-to-one and the limiting rod (202) is slidably set in the connecting pipe (204) to form a sealed connection. The second connecting hose (107) is provided with a first air pump (302) for providing suction, a drying and ammonia removal filter box (3) for filtering, and an ammonia and hydrogen sulfide corrosive gas adsorption box (301). The outer wall of the second connecting hose (107) is fixedly connected to a third connecting hose (4). The third connecting hose (4) is provided with a second air pump (402). The second air pump (402) and the connecting box (203) are connected to each other in a through manner.

2. The device for measuring oxygen concentration in waste fermentation materials according to claim 1, characterized in that: The drying and ammonia removal filter box (3), the ammonia hydrogen sulfide corrosive gas adsorption box (301), and the first gas pump (302) are connected in sequence from back to front.

3. The device for measuring oxygen concentration in waste fermentation materials according to claim 1, characterized in that: An oxygen detection device (303) is provided at the upper gas output port of the first air pump (302). The oxygen detection device (303) is a Biogas5000. A first sealing valve (304) is provided on the second connecting hose (107).

4. The device for measuring oxygen concentration in waste fermentation materials according to claim 1, characterized in that: A first filter plate (102) is fixed to the inner wall of the gas sampling cylinder (1), and a second filter plate (105) is fixed to the lower end of the connection port (104) located inside the gas sampling cylinder (1).

5. The device for measuring oxygen concentration in waste fermentation materials according to claim 1, characterized in that: The lower end of the gas sampling bottle (1) has a rounded corner structure, and the diameter of the gas sampling hole (101) is 1-1.5 mm.

6. The device for measuring oxygen concentration in waste fermentation materials according to claim 1, characterized in that: The upper end of the connecting box (203) is fixedly connected to a fourth connecting hose (403), and a third sealing valve (404) is provided on the fourth connecting hose (403). The third sealing valve (404) and the third connecting hose (4) are connected in a through manner.

7. The device for measuring oxygen concentration in waste fermentation materials according to claim 1, characterized in that: A second sealing valve (401) is provided at the connection between the third connecting hose (4) and the second air pump (402).

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