Automatic water removal system for gas

Abstract

The utility model provides an automatic water removal system for gas, which belongs to the technical field of greenhouse gas treatment and comprises two groups of water removal components which are respectively used for removing water from greenhouse gases at different heights. The first group of water removal assembly comprises a first cavity and a third cavity, and the first cavity and the third cavity are provided with air inlets and air outlets; the second group of water removal assembly comprises a second cavity and a fourth cavity, and the second cavity and the fourth cavity are provided with air inlets and air outlets; a cooling and condensing assembly and a heating and draining assembly are arranged in each cavity, the cooling and condensing assemblies are used for cooling and dewatering treatment, and the heating and draining assemblies are used for heating and draining treatment. According to the utility model, a plurality of cavities are utilized, cooling condensation water removal and heating melting drainage are alternately realized, automatic removal of water in the greenhouse gas can be realized in the process of continuously collecting and detecting the greenhouse gas, the water removal efficiency is high, and the stability is good.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of greenhouse gas treatment, specifically a gas automatic water removal system. Background Technique

[0002] Greenhouse gases refer to natural or man-made gases that can absorb and emit infrared radiation (long-wave radiation). These gases will form a greenhouse effect-like phenomenon in the atmosphere, leading to an increase in the temperature of the Earth's surface. The short-wave radiation of the sun can penetrate the atmosphere and reach the Earth's surface, warming the ground; while the long-wave radiation released by the ground will be absorbed by greenhouse gases, and part of the energy will be re-radiated back to the surface, keeping the surface temperature at a relatively high level.

[0003] The main greenhouse gases include: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), fluorocarbon gases (such as hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride), etc. During the monitoring of greenhouse gases, the presence of moisture (H2O) can have a certain impact on the monitoring results, especially when using certain types of instruments for measurement. The following are the main aspects of the impact:

[0004] 1. Interference in measurement: Moisture can absorb infrared rays of specific wavelengths, which partially overlaps with the wavelengths absorbed by many greenhouse gases (such as carbon dioxide and methane). Therefore, in a high-humidity environment, moisture may interfere with the accurate measurement of greenhouse gas concentrations, especially when using measurement devices based on the principle of infrared absorption.

[0005] 2. Dilution effect: The presence of moisture can cause the total volume of the gas sample to increase, thereby diluting the proportion of other gas components. This means that if the moisture in the sample is not properly processed or compensated, the actual concentration of greenhouse gases may be underestimated.

[0006] 3. Condensation problem: During the sampling process, if the temperature of the gas sample drops below the dew point, moisture may condense into a liquid state, resulting in the loss of some gas components in the sample, thereby affecting the accuracy of the measurement results.

[0007] 4. Background signal: Moisture itself is also a greenhouse gas. Although its direct anthropogenic emissions are relatively small, its content in the atmosphere can significantly affect the climate. Therefore, when monitoring greenhouse gases, the contribution of moisture itself needs to be considered in order to correctly interpret the changes of other greenhouse gases.

[0008] In order to ensure the accuracy and reliability of greenhouse gas monitoring, appropriate technical means must be taken to minimize the impact of moisture on the measurement results.

[0009] Some water removal devices for greenhouse gases in the prior art have the following defects: First, the water removal efficiency is low. Even after water removal, the moisture content in the greenhouse gas is still relatively high, affecting the accuracy of the detection results. Second, it is impossible to continuously remove water during the monitoring of greenhouse gases, making it difficult to ensure the continuity of monitoring data. Greenhouse gas monitoring requires continuous and uninterrupted data collection because the concentration and distribution of greenhouse gases change over time, and this change may be rapid and unpredictable. Continuous data can provide more accurate information to help understand the dynamic changes of greenhouse gases. Therefore, in order to obtain the most reliable results, it is usually necessary to maintain the continuity of data.

[0010] In view of the above problems, after years of research and development by the inventors of this application, a gas automatic water removal system has been designed, which can automatically remove the moisture in greenhouse gases during the continuous collection and detection of greenhouse gases. It not only has high water removal efficiency and good stability, but also can be connected to existing greenhouse gas monitoring equipment through modular design, facilitating popularization and use, and has strong practicability. Summary of the Utility Model

[0011] Aiming at the above problems, one of the purposes of the present utility model is to provide a gas automatic water removal system, which uses multiple cavities to alternately achieve cooling condensation water removal and heating melting drainage, and can automatically remove the moisture in greenhouse gases during the continuous collection and detection of greenhouse gases, with high water removal efficiency and good stability.

[0012] The technical solution adopted by the present utility model to solve the above technical problems is as follows:

[0013] The present utility model provides a gas automatic water removal system, including two groups of water removal components, and the two groups of water removal components are respectively used for water removal of greenhouse gases at different heights;

[0014] The first group of the water removal components includes a first cavity and a third cavity. The first cavity and the third cavity have air inlets and air outlets, and the air inlets of the first cavity and the third cavity are both connected to a first inlet pipe, and the first inlet pipe is used to introduce greenhouse gases at a first height;

[0015] The second group of the water removal components includes a second cavity and a fourth cavity. The second cavity and the fourth cavity have air inlets and air outlets, and the air inlets of the second cavity and the fourth cavity are both connected to a second inlet pipe, and the second inlet pipe is used to introduce greenhouse gases at a second height;

[0016] Each cavity is provided with a cooling condensation component and a heating drainage component. The cooling condensation component is used to achieve cooling water treatment, and the heating drainage component is used to achieve heating drainage treatment.

[0017] In some feasible embodiments, the air inlets of the first cavity and the third cavity are provided at the upper part of the cavity;

[0018] and / or, the air inlets of the second cavity and the fourth cavity are provided at the upper part of the cavity.

[0019] In some feasible embodiments, the part of the first inlet pipe connected to the air inlet of the first cavity or the third cavity is inserted into the cavity and extends to the bottom of the cavity;

[0020] and / or, the part of the second inlet pipe connected to the air inlet of the second cavity or the fourth cavity is inserted into the cavity and extends to the bottom of the cavity.

[0021] In some feasible embodiments, the first inlet pipe is obliquely cut and connected to the air inlet of the first cavity or the third cavity;

[0022] and / or, the second inlet pipe is obliquely cut and connected to the air inlet of the second cavity or the fourth cavity.

[0023] In some feasible embodiments, the air outlets of the first cavity and the third cavity are both connected to the first outlet pipe, and the first outlet pipe is used to discharge the water-removed greenhouse gas in the first cavity or the third cavity.

[0024] In some feasible embodiments, a first exhaust valve is provided on the first outlet pipe, and the first exhaust valve is used to control the exhaust of the first cavity or the third cavity;

[0025] and / or, there are two first exhaust valves, which are respectively arranged on the side of the first outlet pipe close to the first cavity or the third cavity.

[0026] In some feasible embodiments, the air outlets of the second cavity and the fourth cavity are both connected to the second outlet pipe, and the second outlet pipe is used to discharge the water-removed greenhouse gas in the second cavity or the fourth cavity.

[0027] In some feasible embodiments, a second exhaust valve is provided on the second outlet pipe, and the second exhaust valve is used to control the exhaust of the second cavity or the fourth cavity;

[0028] and / or, there are two second exhaust valves, which are respectively arranged on the side of the second outlet pipe close to the second cavity or the fourth cavity.

[0029] In some feasible embodiments, a first inlet valve is provided on the first inlet pipe, and the first inlet valve is used to control the inlet of the first cavity or the third cavity;

[0030] and / or, the first inlet valves are respectively arranged on the side of the first inlet pipe close to the first cavity or the third cavity.

[0031] In some realizable ways, a second intake valve is provided on the second intake pipe, and the second intake valve is used to control the intake of the second cavity or the fourth cavity;

[0032] And / or, the second intake valves are respectively arranged on one side of the second intake pipe close to the second cavity or the fourth cavity.

[0033] A drain pipe is provided at the bottom of each cavity, and a drain valve is provided on the drain pipe.

[0034] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0035] The present utility model is provided with two sets of water removal components, which respectively perform water removal treatment on greenhouse gases at different heights, facilitating subsequent simultaneous collection of greenhouse gas data at two different heights, and having a wider application range.

[0036] In each cavity of the present utility model, a cooling and condensation component and a heating and drainage component are provided. On the one hand, the ultra-low temperature cooling and condensation component condenses the moisture in the greenhouse gas into a solid, which is then separated from the gas sample, and is applicable to application scenarios requiring high-purity gas samples to avoid the influence of moisture on subsequent greenhouse gas data analysis; on the other hand, heating is used to convert the solidified moisture into a liquid, thereby realizing drainage.

[0037] The present utility model utilizes multiple cavities to alternately realize cooling and condensation for water removal and heating for melting and drainage, and can automatically remove the moisture in the greenhouse gas during the continuous collection and detection of greenhouse gases, with high water removal efficiency and good stability.

[0038] The present utility model can be connected to existing greenhouse gas monitoring equipment through modular design, facilitating popularization and use, and having strong practicability.

[0039] The following will combine the drawings with specific embodiments to explain the present utility model in detail. Description of the Drawings

[0040] Figure 1 is the overall structural schematic diagram of the embodiment of the present utility model;

[0041] Figure 2 is the overall structural connection schematic diagram of the embodiment of the present utility model;

[0042] Figure 3 is the partial structural cross-sectional view of the embodiment of the present utility model, which shows the flow direction of the gas inside the cavity.

[0043] In the figure:

[0044] 1. First cavity; 2. Second cavity; 3. Third cavity; 4. Fourth cavity;

[0045] 5. Inlet pipe fittings; 51. First inlet pipe; 511. First inlet; 52. Second inlet pipe; 521. Second inlet; 53. First intake valve; 54. Second intake valve;

[0046] 6. Outlet pipe fittings; 61. First outlet pipe; 611. First exhaust port; 62. Second outlet pipe; 621. Second exhaust port; 63. First exhaust valve; 64. Second exhaust valve;

[0047] 7. Drain pipe; 71. Drain valve. Detailed implementation manner

[0048] For ease of understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0049] It should be noted that when an element is referred to as being "fixedly arranged on" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0051] This embodiment provides an automatic gas water removal system, which includes two sets of water removal components. The two sets of water removal components are respectively used for removing water from greenhouse gases at different heights, facilitating subsequent collection of greenhouse gas data at two different heights at the same time, and having a wider application range. Here, for example, the first set of water removal components can perform water removal treatment on greenhouse gases at a height of 30 meters, and the second set of water removal components can perform water removal treatment on greenhouse gases at a height of 50 meters. Of course, it can be understood that the water removal components can also be set to one set or multiple sets, which can be specifically set according to actual situations and can meet different scenarios.

[0052] Such as Figure 1 And Figure 2As shown in the figure, in this embodiment, the first set of water removal components includes a first cavity 1 and a third cavity 3. The first cavity 1 and the third cavity 3 are provided with air inlets and air outlets. The air inlets of the first cavity 1 and the third cavity 3 are both connected to a first inlet pipe 51, and the first inlet pipe 51 is used to introduce greenhouse gas at a first height. The gas enters the first cavity 1 or the third cavity 3 through the air inlet. After being treated by cooling and condensation for water removal, the water-removed gas is discharged through the air outlet and can be discharged to subsequent greenhouse gas detection and analysis equipment.

[0053] Similarly, the second set of water removal components includes a second cavity 2 and a fourth cavity 4. The second cavity 2 and the fourth cavity 4 are provided with air inlets and air outlets. The air inlets of the second cavity 2 and the fourth cavity 4 are both connected to a second inlet pipe 52, and the second inlet pipe 52 is used to introduce greenhouse gas at a second height. The gas enters the second cavity 2 or the fourth cavity 4 through the air inlet. After being treated by cooling and condensation for water removal, the water-removed gas is discharged through the air outlet and can be discharged to subsequent greenhouse gas detection and analysis equipment.

[0054] To achieve the purpose of water removal, in this embodiment, a cooling and condensation component and a heating and drainage component are provided in each cavity. The cooling and condensation component is used to achieve cooling and water removal treatment. Specifically, in this embodiment, a cryogenic condensation component is used to quickly reduce the temperature in the cavity to -70°C to -50°C, which can cool the gas to an extremely low temperature, far lower than the normal freezing point of water. In this way, the water in the gas can be condensed into a solid (ice cube), thereby realizing the separation of greenhouse gas and water. After cooling and water removal, the greenhouse gas can be discharged from the cavity for subsequent detection and analysis.

[0055] The heating and drainage component is used for heating and drainage treatment. Specifically, in this embodiment, the heating and drainage component is used to raise the temperature in the cavity to 50° to 110°, melt the above-mentioned ice cubes into water and then discharge them from the cavity. After draining the water in the cavity completely, air can be introduced again for cooling and condensation for water removal and heating and drainage treatment. By repeating this process, the continuity of water removal can be achieved.

[0056] Preferably, in this embodiment, the cooling and condensation component adopts a double-compressor cascade technology, and the double Danfoss compressors are cascaded to quickly reduce the temperature in the cavity to -70°C to -50°C. The refrigerant in the high-temperature compressor is R404, which can reduce the condensation temperature to -30°C, and the refrigerant in the low-temperature compressor is R170, which can reduce the final temperature to -70°C to -50°C. In addition, the absolute low-temperature range in this experimental example can be adjusted according to national standards during actual operation. The heating and drainage component is arranged in the form of an electric heating tape on the outside of the cavity for heating and temperature-raising treatment of the cavity to increase its internal temperature.

[0057] Please refer to Figure 3, in this embodiment, the air inlets of the first cavity 1 and the third cavity 3 are provided at the upper part of the cavity; the air inlets of the second cavity 2 and the fourth cavity 4 are provided at the upper part of the cavity. Wherein, the part of the first inlet pipe 51 connected to the air inlet of the first cavity 1 or the third cavity 3 is inserted into the cavity interior and extends to the bottom of the cavity; the part of the second inlet pipe 52 connected to the air inlet of the second cavity 2 or the fourth cavity 4 is inserted into the cavity interior and extends to the bottom of the cavity.

[0058] It can be seen that in this embodiment, the first inlet pipe 51 and the second inlet pipe 52 extend to the bottom of each corresponding cavity, increasing the flow time of the sample gas in the cavity, ensuring sufficient time to condense the moisture in the sample gas into ice, greatly improving the water removal effect, and ensuring that the moisture in the finally output gas is less than 50 ppm.

[0059] To further improve the water removal effect, in this embodiment, the first inlet pipe 51 is obliquely cut and connected to the air inlet of the first cavity 1 or the third cavity 3; the second inlet pipe 52 is obliquely cut and connected to the air inlet of the second cavity 2 or the fourth cavity 4. According to fluid mechanics, since the conveyed gas has a certain pressure and enters the cavity obliquely, the gas spirals downward in the cavity, extending the flow path and residence time, facilitating better condensation of the moisture in the sample gas into ice, and ensuring the water removal efficiency.

[0060] In some realizable embodiments, the air outlets of the first cavity 1 and the third cavity 3 are both connected to the first outlet pipe 61, and the first outlet pipe 61 is used to discharge the greenhouse gas after water removal in the first cavity 1 or the third cavity 3. A first exhaust valve 63 is provided on the first outlet pipe 61, and the first exhaust valve 63 is used to control the exhaust of the first cavity 1 or the third cavity 3. Specifically, in this embodiment, there are two first exhaust valves 63, which are respectively provided on the side of the first outlet pipe 61 close to the first cavity 1 or the third cavity 3.

[0061] In some realizable embodiments, the air outlets of the second cavity 2 and the fourth cavity 4 are both connected to the second outlet pipe 62, and the second outlet pipe 62 is used to discharge the greenhouse gas after water removal in the second cavity 2 or the fourth cavity 4. A second exhaust valve 64 is provided on the second outlet pipe 62, and the second exhaust valve 64 is used to control the exhaust of the second cavity 2 or the fourth cavity 4. Specifically, in this embodiment, there are two second exhaust valves 64, which are respectively provided on the side of the second outlet pipe 62 close to the second cavity 2 or the fourth cavity 4.

[0062] Furthermore, in this embodiment, a first intake valve 53 is provided on the first inlet pipe 51, and the first intake valve 53 is used to control the intake of the first cavity 1 or the third cavity 3; the first intake valve 53 is respectively provided on the side of the first inlet pipe 51 close to the first cavity 1 or the third cavity 3.

[0063] In this embodiment, a second intake valve 54 is provided on the second inlet pipe 52. The second intake valve 54 is used to control the intake of the second cavity 2 or the fourth cavity 4. The second intake valve 54 is respectively provided on one side of the second inlet pipe 52 close to the second cavity 2 or the fourth cavity 4. A drain pipe 7 is provided at the bottom of each cavity. A drain valve 71 is provided on the drain pipe 7 for draining the cavity. Preferably, in this embodiment, the air inlet is provided at the upper part of the side of each cavity, and the air outlet is provided at the top of each cavity. The gas entering the cavity from the side is discharged from the top air outlet after water treatment, and the drain pipe 7 is provided at the bottom of each cavity for convenient drainage treatment.

[0064] The specific working process is as follows:

[0065] First, open the first intake valve 53 and the first exhaust valve 63 between the first inlet 511, the first cavity 1 and the second inlet 521, and open the second intake valve 54 and the second exhaust valve 64 between the second inlet 521, the second cavity 2 and the second exhaust port 621, and start cooling the first cavity 1 and the second cavity 2 so that the temperature in the first cavity 1 and the second cavity 2 drops to -30°C (-30°C is the set temperature and can also be adjusted according to actual conditions);

[0066] Then, input the sample gas at the first height (usually 30 meters high) into the first inlet 511 and enter the first cavity 1, input the sample gas at the second height (usually 50 meters high) into the second inlet 521 and enter the second cavity 2. At the same time, continue to cool the first cavity 1 and the second cavity 2 until the temperature in the cavity drops to the range of -70°C to -50°C. At this time, the moisture in the gas in the first cavity 1 and the second cavity 2 condenses and freezes to achieve the purpose of water removal. The water-removed gas in the first cavity 1 and the second cavity 2 is respectively led out from the first exhaust port 611 and the second exhaust port 621. When the water in the first cavity 1 and the second cavity 2 freezes to a certain extent, close the previously opened valves, and then open the valves that were not opened before;

[0067] Subsequently, the gases of the two heights enter the third cavity 3 and the fourth cavity 4 that have been pre-cooled to -30°. At this time, the third cavity 3 and the fourth cavity 4 are rotated for condensation, temperature reduction, and water treatment, while the first cavity 1 and the second cavity 2 are subjected to temperature increase and drainage treatment. When the temperature in the first cavity 1 and the second cavity 2 rises to 50° - 110°, the ice cubes produced during the above condensation process melt into water. By opening the drain valve 71 on the drain pipe 7 of the first cavity 1 and the second cavity 2, the water in the cavity can be drained until it is completely drained. When enough ice has formed in the third cavity 3 and the fourth cavity 4, the first cavity 1 and the second cavity 2 are used for condensation, temperature reduction, and water treatment. Multiple cavities are alternately subjected to condensation, temperature reduction, and water treatment and temperature increase and drainage treatment to achieve the purpose of continuous water removal.

[0068] The above describes the present invention exemplarily in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. Gas automatic water removal system, characterized in that it includes two sets of water removal components, and the two sets of water removal components are respectively used for water removal of greenhouse gases at different heights; The first set of the water removal components includes a first cavity (1) and a third cavity (3), the first cavity (1) and the third cavity (3) have an air inlet and an air outlet, the air inlets of the first cavity (1) and the third cavity (3) are both connected to a first inlet pipe (51), and the first inlet pipe (51) is used for introducing greenhouse gases at a first height; The second set of the water removal components includes a second cavity (2) and a fourth cavity (4), the second cavity (2) and the fourth cavity (4) have an air inlet and an air outlet, the air inlets of the second cavity (2) and the fourth cavity (4) are both connected to a second inlet pipe (52), and the second inlet pipe (52) is used for introducing greenhouse gases at a second height; A temperature reduction and condensation component and a temperature increase and drainage component are arranged in each cavity, the temperature reduction and condensation component is used for realizing temperature reduction and water removal treatment, and the temperature increase and drainage component is used for temperature increase and drainage treatment.

2. The gas automatic water removal system according to claim 1, characterized in that the air inlets of the first cavity (1) and the third cavity (3) are arranged at the upper part of the cavity; and / or, the air inlets of the second cavity (2) and the fourth cavity (4) are arranged at the upper part of the cavity.

3. The gas automatic water removal system according to claim 2, characterized in that the part of the first inlet pipe (51) connected to the air inlet of the first cavity (1) or the third cavity (3) is inserted into the cavity interior and extends to the bottom of the cavity; and / or, the part of the second inlet pipe (52) connected to the air inlet of the second cavity (2) or the fourth cavity (4) is inserted into the cavity interior and extends to the bottom of the cavity.

4. The gas automatic water removal system according to any one of claims 1-3, characterized in that the first inlet pipe (51) is obliquely cut and connected to the air inlet of the first cavity (1) or the third cavity (3); and / or, the second inlet pipe (52) is obliquely cut and connected to the air inlet of the second cavity (2) or the fourth cavity (4).

5. The gas automatic water removal system according to claim 1, characterized in that the air outlets of the first cavity (1) and the third cavity (3) are both connected to a first outlet pipe (61), and the first outlet pipe (61) is used for discharging the greenhouse gases after water removal in the first cavity (1) or the third cavity (3).

6. The gas automatic water removal system according to claim 5, characterized in that a first exhaust valve (63) is arranged on the first outlet pipe (61), and the first exhaust valve (63) is used for controlling the exhaust of the first cavity (1) or the third cavity (3); and / or, there are two first exhaust valves (63), which are respectively arranged on one side of the first outlet pipe (61) close to the first cavity (1) or the third cavity (3).

7. The gas automatic water removal system according to claim 1, characterized in that The air outlets of the second cavity (2) and the fourth cavity (4) are both connected to the second outlet pipe (62), and the second outlet pipe (62) is used to discharge the greenhouse gas after water removal in the second cavity (2) or the fourth cavity (4).

8. The gas automatic water removal system according to claim 7, wherein a second exhaust valve (64) is provided on the second outlet pipe (62), and the second exhaust valve (64) is used to control the exhaust of the second cavity (2) or the fourth cavity (4); and / or, there are two second exhaust valves (64), which are respectively arranged on one side of the second outlet pipe (62) close to the second cavity (2) or the fourth cavity (4).

9. The gas automatic water removal system according to claim 1, wherein a first intake valve (53) is provided on the first inlet pipe (51), and the first intake valve (53) is used to control the intake of the first cavity (1) or the third cavity (3); and / or, the first intake valves (53) are respectively arranged on one side of the first inlet pipe (51) close to the first cavity (1) or the third cavity (3).

10. The gas automatic water removal system according to claim 1, wherein a second intake valve (54) is provided on the second inlet pipe (52), and the second intake valve (54) is used to control the intake of the second cavity (2) or the fourth cavity (4); and / or, the second intake valves (54) are respectively arranged on one side of the second inlet pipe (52) close to the second cavity (2) or the fourth cavity (4); A drain pipe (7) is provided at the bottom of each cavity, and a drain valve (71) is provided on the drain pipe (7).

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