Greenhouse gas monitoring equipment

Abstract

The utility model relates to greenhouse gas monitoring equipment, which comprises a gas collection tank, a gas production pipeline, a negative pressure fan, a gas storage tank and a gas component analyzer, an exhaust pipe is arranged at the bottom end of the gas collection tank, the gas component analyzer is fixedly mounted on the outer side of the gas collection tank, and a gas inlet pipe of the gas component analyzer is communicated with the exhaust pipe; one end of the gas production pipeline is communicated with the interior of the gas collection tank, a plurality of extending branch pipes are arranged at the other end of the gas production pipeline, the negative pressure fan is fixedly installed at the bottom end of the gas collection tank, a suction opening corresponding to the negative pressure fan in position is formed in the bottom end of the gas collection tank, an automatic sealing door is fixedly installed in the suction opening, and the gas storage tank is fixedly installed on one side of the gas collection tank. The protective gas is stored in the gas storage tank, the gas outlet nozzle of the gas storage tank is communicated with the interior of the gas collection tank, and gas in a plurality of to-be-detected areas is collected into the gas collection tank through the gas collection pipeline, so that the to-be-detected gas does not directly impact a sensing component of the gas component analyzer, and the service life of the gas component analyzer is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of greenhouse gas monitoring technology, and in particular to a greenhouse gas monitoring device. Background Technology

[0002] Greenhouse gases refer to gases in the atmosphere that absorb long-wave radiation reflected from the ground and then re-emit radiation, such as water vapor, carbon dioxide, and most refrigerants. Their effect is to warm the Earth's surface, similar to how a greenhouse traps solar radiation and heats the air inside. This warming effect of greenhouse gases is called the "greenhouse effect." Water vapor, carbon dioxide, nitrous oxide, Freon, and methane are the main greenhouse gases in the Earth's atmosphere. Greenhouse gas monitoring requires corresponding gas monitoring equipment. Existing gas monitoring equipment uses a miniature motor inside a conical barrel to drive a stirring blade to mix the air evenly before it enters the greenhouse gas detector. However, the air contains dust particles, which not only affect the accuracy of the gas data but also clog the multiple vents on the conical barrel, making subsequent cleaning very troublesome. Furthermore, the opening of the hammer-shaped barrel cannot be adjusted, and a large amount of dust will enter when the equipment is parked or used in harsh outdoor environments, severely reducing the lifespan of the greenhouse gas monitoring equipment. This is especially true in areas with smog and in rainy or snowy weather, where prolonged use can cause significant damage to the equipment. Utility Model Content

[0003] The purpose of this invention is to provide a greenhouse gas monitoring device to solve the problems existing in the prior art.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A greenhouse gas monitoring device includes a gas collection box, a gas sampling pipeline, a negative pressure fan, a gas storage tank, and a gas composition analyzer. The gas collection box has an exhaust pipe at its bottom end, and the gas composition analyzer is fixedly installed on the outside of the gas collection box, with its inlet pipe connected to the exhaust pipe. One end of the gas sampling pipeline is connected to the interior of the gas collection box, and the other end of the gas sampling pipeline has multiple extension branches. The negative pressure fan is fixedly installed at the bottom of the gas collection box, and the bottom of the gas collection box has an exhaust port corresponding to the position of the negative pressure fan. An automatic sealing door is fixedly installed inside the exhaust port. The gas storage tank is fixedly installed on one side of the gas collection box, and the gas storage tank stores protective gas. The exhaust nozzle of the gas storage tank is connected to the interior of the gas collection box. Each of the extension branches is equipped with a solenoid valve.

[0006] By adopting the above technical solution, the gas from multiple test areas is collected into the gas collection box through the gas sampling pipeline, ensuring that the gas to be tested does not directly impact the sensing components of the gas composition analyzer. The gas inside the gas collection box is extracted and measured in a relatively gentle manner. If the gas composition could damage the gas composition analyzer, the negative pressure fan is turned off, and then protective gas is reverse-filled into the gas collection pipe of the gas collection box through the gas storage tank to dilute the gas to be tested. Then, the negative pressure fan is turned back on to create a negative pressure environment inside the gas collection box, allowing the gas composition analyzer to resume operation. This protects the gas composition analyzer and extends its service life.

[0007] In a further embodiment, a flow rate detection valve is provided on the gas outlet of the gas storage tank.

[0008] By adopting the above technical solution, the flow rate detection valve can determine the content of protective gas filled in the gas storage tank or gas collection box. The actual composition of the gas to be measured can be calculated by the algorithm, enabling the device to operate in multiple modes.

[0009] In a further embodiment, a refractometer is provided on the inner top of the gas collection box.

[0010] By adopting the above technical solution, the refractometer is used to detect the particle content of the gas to be tested.

[0011] In a further embodiment, a rotating bracket is fixedly installed inside the air collection box, and a filter sponge block is fixedly installed on the top of the rotating bracket.

[0012] By adopting the above technical solution, particles in the gas to be tested can be filtered when needed, reducing the content of large particles in the gas and protecting the gas composition analyzer.

[0013] In a further embodiment, a housing is fixedly installed inside the gas collection box, the housing being used to house the filter sponge block.

[0014] In a further embodiment, the inner wall of the gas extraction pipe is provided with a nano-coating.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. By collecting gases from multiple test areas through gas sampling pipes into the gas collection box, the gas to be measured is prevented from directly impacting the sensing components of the gas composition analyzer. A relatively gentle method is used to extract the gas from inside the gas collection box for measurement. If the gas composition could damage the gas composition analyzer, the negative pressure fan is turned off, and then protective gas is reverse-filled into the gas collection pipes of the gas collection box through the gas storage tank to dilute the gas to be measured. Then, the negative pressure fan is turned back on to create a negative pressure environment inside the gas collection box, allowing the gas composition analyzer to resume operation. This protects the gas composition analyzer and extends its service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram illustrating the internal structure of the gas collecting box of this utility model.

[0019] In the diagram, 1. Gas collection box; 2. Gas collection pipeline; 3. Negative pressure fan; 4. Gas storage tank; 5. Gas composition analyzer; 6. Automatic sealing door; 7. Solenoid valve; 8. Flow rate and velocity detection valve; 9. Refractometer; 10. Rotating support; 11. Filter sponge block; 12. Housing shell. Detailed Implementation

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

[0021] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0022] Example 1:

[0023] like Figures 1-2As shown, a greenhouse gas monitoring device includes a gas collection box 1, a gas sampling pipe 2, a negative pressure fan 3, a gas storage tank 4, and a gas composition analyzer 5. The inner wall of the gas sampling pipe 2 is coated with a nano-coating. An exhaust pipe is provided at the bottom of the gas collection box 1. The gas composition analyzer 5 is fixedly installed on the outside of the gas collection box 1, and its inlet pipe is connected to the exhaust pipe. One end of the gas sampling pipe 2 is connected to the interior of the gas collection box 1, and the other end of the gas sampling pipe 2 is provided with multiple extension branches. The negative pressure fan 3 is fixedly installed at the bottom of the gas collection box 1, and an exhaust port corresponding to the position of the negative pressure fan 3 is provided at the bottom of the gas collection box 1. An automatic sealing door 6 (automatically controlled door) is fixedly installed inside the exhaust port. The automatic sealing door 6 is used for... The system controls the opening and closing of the exhaust vent. When the exhaust vent is open, the negative pressure fan 3 starts working. When the automatic sealing door 6 is closed, the negative pressure fan 3 stops working. The gas storage tank 4 is fixedly installed on one side of the gas collection box 1. The gas storage tank 4 stores protective gas. The exhaust nozzle of the gas storage tank 4 is connected to the inside of the gas collection box 1. Each extension branch is equipped with a solenoid valve 7. The exhaust nozzle of the gas storage tank 4 is equipped with a flow rate detection valve 8. A refractometer 9 is installed on the top inside the gas collection box 1. A rotating bracket 10 is fixedly installed inside the gas collection box 1. A filter sponge block 11 is fixedly installed on the top of the rotating bracket 10. A housing 12 is fixedly installed inside the gas collection box 1. The housing 12 is used to house the filter sponge block 11.

[0024] like Figures 1-2 As shown, the technical solution of this application has three main working modes. In the first mode, the gas storage tank does not work, and the negative pressure fan 3 creates a negative pressure environment inside the gas collection box 1, so that the gas to be tested from the outside enters the interior of the gas collection box 1 through the gas collection pipe 2 and is detected by the gas composition analyzer 5.

[0025] The second scenario involves the gas storage tank operating. When the negative pressure fan starts, 2 is not working, the automatic sealing door 6 is closed, and the gas storage tank is reversibly filling the gas collection box, replacing the gas inside the gas collection box with the protective gas stored in the gas storage tank. When the gas composition analyzer 5 detects that the concentration of the protective gas is greater than 95%, the automatic sealing door 6 opens, the negative pressure fan 2 starts working, and at this time the gas storage tank stops releasing the protective gas.

[0026] The third scenario involves the gas storage tank operating. When the negative pressure fan 2 starts, it is not working, the automatic sealing door 6 is closed, and the gas storage tank is refilled in reverse to fill the gas collection box, replacing the gas inside the gas collection box with the protective gas stored in the gas storage tank. When the gas composition analyzer 5 detects that the concentration of the protective gas is greater than 95%, the automatic sealing door 6 opens, the negative pressure fan 2 starts working, and the gas storage tank continues to release the protective gas. Through the coordination of the flow rate detection valve 8 and the gas composition analyzer 5, the gas composition analyzer 5 always operates in a relatively less damaging environment.

[0027] The specific implementation process is as follows: By collecting gases from multiple test areas through gas sampling pipes into the gas collection box, the gas to be tested is prevented from directly impacting the sensing components of the gas composition analyzer. The gas inside the gas collection box is extracted and measured in a relatively gentle manner. When the gas composition could damage the gas composition analyzer, the negative pressure fan is turned off, and then protective gas is reverse-filled into the gas collection pipes of the gas collection box through the gas storage tank to dilute the gas to be tested. Then, the negative pressure fan is turned back on to create a negative pressure environment inside the gas collection box, allowing the gas composition analyzer to resume operation. This process protects the gas composition analyzer and extends its service life.

[0028] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0029] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A greenhouse gas monitoring device, characterized in that: The system includes a gas collection box (1), a gas sampling pipe (2), a negative pressure fan (3), a gas storage tank (4), and a gas composition analyzer (5). The gas collection box (1) has an exhaust pipe at its bottom. The gas composition analyzer (5) is fixedly installed on the outside of the gas collection box (1), and its inlet pipe is connected to its exhaust pipe. One end of the gas sampling pipe (2) is connected to the interior of the gas collection box (1), and the other end of the gas sampling pipe (2) has multiple extension branches. The negative pressure fan (3) is fixedly installed at the bottom of the gas collection box (1), and the bottom of the gas collection box (1) is provided with an exhaust port corresponding to the position of the negative pressure fan (3). An automatic sealing door (6) is fixedly installed inside the exhaust port. The gas storage tank (4) is fixedly installed on one side of the gas collection box (1). The gas storage tank (4) stores protective gas. The exhaust nozzle of the gas storage tank (4) is connected to the interior of the gas collection box (1). Each of the extension branches is provided with a solenoid valve (7).

2. The greenhouse gas monitoring device according to claim 1, characterized in that: The gas storage tank (4) is equipped with a flow rate detection valve (8) on its outlet.

3. The greenhouse gas monitoring device according to claim 1, characterized in that: A refractometer (9) is installed on the inner top of the gas collection box (1).

4. A greenhouse gas monitoring device according to claim 3, characterized in that: A rotating bracket (10) is fixedly installed inside the air collection box (1), and a filter sponge block (11) is fixedly installed on the top of the rotating bracket (10).

5. A greenhouse gas monitoring device according to claim 4, characterized in that: The gas collection box (1) is fixedly installed with a housing (12) inside, which is used to house the filter sponge block (11).

6. A greenhouse gas monitoring device according to claim 1, characterized in that: The inner wall of the gas extraction pipeline (2) is provided with a nano-coating.

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