A splicable soil gas collecting and detecting integrated device

Abstract

The utility model provides a kind of soil gas collection and detection integrated device of splicing, including detection collection bin and extension collection bin, the inside of detection collection bin upper side is equipped with detection host, the air passage is equipped in the side wall of detection collection bin lower side and the side wall of extension collection bin, the extension collection bin can be installed in the lower end of detection collection bin or other lower end of extension collection bin, the extension collection bin is used as optional spare and increases the gas collection range of detection collection bin.The lower end of the detection collection bin of the device can be equipped with a certain number of extension collection bin, so that the lowermost extension collection bin can be deeply inserted into the deep soil under permafrost, and the target gas in different soil depths can be effectively collected.The device has the advantages of simple structure, stability and reliability, strong operability on site, low cost, high performance-price ratio, and is suitable for various regional landforms, various pipeline burial depths, and large-scale promotion.

Description

Technical Field

[0001] This utility model relates to a soil gas detection device, specifically, to a modular integrated device for soil gas collection and detection. Background Technology

[0002] Buried gas detection devices are safety equipment used to monitor the leakage of combustible gas around underground gas pipelines or facilities. They are widely used in urban gas pipeline networks, chemical plants and other scenarios to effectively prevent explosions or poisoning accidents caused by gas leaks and improve the safety operation and maintenance level of underground gas systems.

[0003] Traditional soil gas detection (soil gas leak detection) typically involves separating gas collection and detection. Various soil gas collection devices are used on-site to collect the target gas into a sealed container, which is then sent to a laboratory for testing. This method is cumbersome, lacks real-time performance, and is not suitable for scenarios requiring continuous monitoring.

[0004] Furthermore, existing gas sampling / collection devices can only collect gases at a fixed depth in the soil, limiting their application scenarios. For example, in Jilin Province, the permafrost in Baicheng is generally deep, ranging from 170 to 250 centimeters, while in Tonghua it is generally shallow, around 100 to 140 centimeters. Similarly, in Heilongjiang Province, the seasonal permafrost depth in Huma can reach 280 centimeters, while in Harbin and Mudanjiang it is between 180 and 200 centimeters. This necessitates that long-term on-site soil gas sampling / collection devices be able to collect gases from shallow soil layers (0 to 50 centimeters) in summer and from below the permafrost layer in winter.

[0005] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a modular integrated soil gas collection and detection device. By connecting the detection collection chamber and the extended collection chamber, target gases at different soil depths can be collected and detected.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a detection collection chamber and an extended collection chamber. The detection collection chamber is equipped with a detection host inside the upper side. Both the lower side wall of the detection collection chamber and the side wall of the extended collection chamber are provided with ventilation channels. The extended collection chamber can be installed at the lower end of the detection collection chamber or at the lower end of other extended collection chambers. The extended collection chamber is used as an optional component to increase the gas collection range of the detection collection chamber.

[0008] Based on the above, the detection and collection chamber includes an underground section and a top cover, with the top cover exposed above the ground.

[0009] Based on the above, the underground section and the top cover adopt a splicable structure or an integrated structure, and the top cover can be opened and closed.

[0010] Based on the above, the detection and collection chamber includes a buried section at the bottom and a warning post at the top. The detection host is located inside the warning post, and the warning post is exposed on the ground.

[0011] Based on the above, the buried section and the warning post adopt a splicable structure or an integrated structure.

[0012] Based on the above, the length of the underground section is consistent with the length of the extended collection chamber.

[0013] Based on the above, the detection collection chamber is provided with a connected detection chamber and a main collection chamber. The detection chamber is located on the upper side of the main collection chamber and is equipped with a detection host. The extension collection chamber in the extension collection chamber is connected to the main collection chamber or other extension collection chambers from the top of the extension collection chamber. The ventilation channel is connected to the main collection chamber or the extension collection chamber.

[0014] Based on the above, the top of the extended collection chamber is set as a first modular splicing part, and the bottom of the detection collection chamber and the extended collection chamber are set as a second modular splicing part. The first modular splicing part and the second modular splicing part can be docked and fixed.

[0015] Based on the above, a modular sealing cover can be installed on the second modular splicing part at the bottom of the detection collection chamber and the extended collection chamber.

[0016] Based on the above, the ventilation channel adopts air vents and is equipped with a filter screen.

[0017] This invention has substantial features and advancements compared to existing technologies. Specifically, the lower end of the detection and collection chamber of this device can be equipped with a certain number of extended collection chambers, allowing the lowest extended collection chamber to penetrate deep into the soil below the frozen ground to collect and detect target gases in the deep soil. Moreover, each section of the extended collection chamber and the side wall of the highest detection and collection chamber are equipped with ventilation channels. Therefore, this device can effectively collect target gases from different soil depths. The device as a whole has the advantages of simple and stable structure, strong on-site operability, low cost, high cost-effectiveness, applicability to various geographical features and various pipeline burial depths, and is suitable for large-scale promotion.

[0018] Meanwhile, the upper part of the detection and collection chamber can be set as a top cover or a warning post to adapt to different scenarios; the detection and collection chamber and the extended collection chamber adopt modular assembly, which helps to reduce costs and increase assembly efficiency; the bottom of the device can be equipped with a modular sealing cover through modular assembly, and the ventilation channel adopts ventilation holes and is equipped with a filter screen to prevent debris from entering the device and affecting gas detection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure and an exploded view of one embodiment of this utility model; Figure 2 This is a schematic diagram of the overall structure and an exploded view of another embodiment of this utility model; Figure 3 These are schematic diagrams of the overall structure of two other embodiments of this utility model; In the figure, the attached labels are: detection and collection chamber 1, top cover 11, warning post 12, ventilation channel 101, extended collection chamber 2, first modular splicing part 21, detection host 3, modular sealing cover 4, ground surface 200. Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0021] Example 1 like Figures 1-3 As shown, the modular soil gas collection and detection integrated device of this embodiment includes a detection collection chamber 1. The detection collection chamber 1 is equipped with a detection host 3 inside the upper side and a ventilation channel 101 is provided on the lower side wall of the detection collection chamber 1. Specifically, the detection collection chamber 1 is equipped with a detection chamber and a main collection chamber, which are connected to each other. The detection chamber is located on the upper side of the main collection chamber, the detection host 3 is installed in the detection chamber, and the ventilation channel 101 is connected to the main collection chamber.

[0022] When the target gas in the soil enters the main collection chamber through the ventilation channel 101 on the lower side of the detection collection chamber 1, it will pass through the main collection chamber to reach the detection chamber and be detected by the detection host 3 inside the detection chamber. The detection host 3 can use a gas sensor to detect the concentration of the target gas, so that the detection collection chamber 1 can detect the concentration of the target gas in the soil.

[0023] The modular integrated soil gas collection and detection device of this embodiment also includes an extended collection chamber 2. The side wall of the extended collection chamber 2 is also provided with a ventilation channel 101. The extended collection chamber 2 can be installed at the lower end of the detection collection chamber 1 or at the lower end of other extended collection chambers 2 as an optional component to increase the downward gas collection range of the detection collection chamber 1. Specifically, the extended collection chamber 2 is provided with an extended collection cavity. The extended collection cavity of the extended collection chamber 2 is connected from the top of the extended collection chamber 2 to the main collection cavity or other extended collection cavities. The ventilation channel 101 is connected to the extended collection cavity provided by the extended collection chamber 2 itself.

[0024] When the target gas in the soil enters the extended collection chamber through the ventilation channel 101 on the side wall of the extended collection chamber 2, it will eventually reach the main collection chamber and enter the detection chamber to be detected by the detection host 3. The detection host 3 can use a gas sensor to detect the concentration of the target gas, so that the detection collection chamber 1 can detect the concentration of the target gas in the soil.

[0025] Based on the above, the cross-sectional shapes of the detection collection chamber 1 and the extended collection chamber 2 include, but are not limited to, circular, triangular, rectangular, and polygonal shapes. The detection collection chamber 1 and the extended collection chamber 2 can be different shapes, such as... Figure 2 The central detection collection chamber 1 is rectangular, and the extended collection chamber 2 is circular.

[0026] Based on the above, the materials of the detection collection chamber 1 and the extended collection chamber 2 include, but are not limited to, non-metallic materials such as PVC / PC / ABS / nylon / carbon fiber, metallic materials such as cast iron / aluminum alloy / stainless steel / titanium alloy, and mixed materials of metal and non-metal.

[0027] Based on the above, the power supply for the detection host 3 can be AC ​​power, solar power, battery, etc.; the detection host 3 can provide wired or wireless data interfaces to the outside world. The ventilation channel 101 has ventilation holes and a filter screen is provided on the ventilation channel 101. For example, the filter screen can be a waterproof and breathable mesh.

[0028] According to actual needs, such as Figure 3 As shown, the extension collection chamber 2 may not be installed on the lower side of the detection collection chamber 1; as Figure 1 , Figure 2 As shown, one or more extended collection chambers 2 can be installed on the lower side of the detection collection chamber 1.

[0029] This application Figures 1-3 The shadow below 200 on the ground surface represents soil.

[0030] The operating principle of this device is as follows: Based on the deepest depth of the seasonally frozen soil, a certain number of extended collection chambers 2 are installed at the lower end of the detection collection chamber 1, so that the lowest extended collection chamber 2 extends into the deep soil below the frozen soil to collect and detect the target gas in the deep soil. During the gradual freezing or thawing of the frozen soil layer, or during the period of no frozen soil in summer, because each section of the extended collection chamber 2 and the side wall of the highest detection collection chamber 1 are equipped with ventilation channels 101, this device can effectively collect the target gas in the soil regardless of whether there is frozen soil in winter, no frozen soil in summer, the process of frozen soil formation, or the process of frozen soil thawing.

[0031] This device has a simple and stable structure, is highly operable on site, has low cost and high cost-effectiveness, is suitable for various geographical features and various pipeline burial depths, and is suitable for large-scale promotion.

[0032] Example 2 Based on Embodiment 1, the detection and collection chamber 1 includes a buried section and a top cover 11, with the top cover 11 exposed above the ground. The buried section and the top cover 11 of the detection and collection chamber 1 are connected by a splicable structure or an integrated structure. The top cover 11 can be opened and closed for functions such as equipment maintenance, status reading, or signal transmission interface.

[0033] In other embodiments, the detection collection chamber 1 may also employ a fully embedded shell.

[0034] Example 3 Based on Embodiment 1, this embodiment differs from Embodiment 2. The detection and collection chamber 1 includes a buried section at the bottom and a warning post 12 at the top. The detection host 3 is located inside the warning post 12, which is exposed above the ground. For example, warning posts above gas pipelines are typically brightly colored, such as orange-yellow, and printed with words such as "Gas Pipeline, Do Not Excavate." Generally, the warning post 12 needs to extend at least 1.5 meters above the ground. The warning post 12 in this application is generally used in low-lying areas, green belts, shrubbery, and other similar scenarios, as well as on surfaces prone to water accumulation, to prevent water from entering the detection host 3.

[0035] In this embodiment, the underground section of the detection collection chamber 1 and the warning post 12 adopt a splicable structure or an integrated structure.

[0036] Furthermore, in conjunction with Embodiment 2, both the top cover 11 and the warning post 12 are configured as a splicable structure with the underground section of the detection and collection chamber 1, and the top cover 11 and the warning post 12 can be interchanged on the underground section of the detection and collection chamber 1.

[0037] Example 4 Based on Embodiment 2 or Embodiment 3, in this embodiment, the length of the buried section of the detection collection chamber 1 is consistent with the main body length of the extended collection chamber 2, so that the spliced ​​device can cover a wider range of soil depths, has a wider applicability, and is also convenient for calculating the splicing depth, thereby promoting the standardization of the device and making it suitable for large-scale promotion.

[0038] For example, the length of the buried section of the detection collection chamber 1 and the main body length of the extended collection chamber 2 are both set to 50 cm. Since the depth of frozen soil is usually in the range of 100 cm to 280 cm, the length of 50 cm has a wide applicability. When there is no frozen soil, soil gas at a depth of 50 cm can be detected, and when there is frozen soil, soil gas at depths of 100 cm, 150 cm, 200 cm, 250 cm, 300 cm and so on can be detected.

[0039] Example 5 Based on the above embodiments, in this implementation, the top of the extended collection chamber 2 is set as the first modular splicing part 21, and the bottom of the detection collection chamber 1 and the extended collection chamber 2 is set as the second modular splicing part. The first modular splicing part 21 and the second modular splicing part can be docked and fixed.

[0040] Based on the above, a modular sealing cover 4 can be installed in the second modular splice section at the bottom of the detection collection chamber 1 and the extended collection chamber 2.

[0041] Based on the above, the top cover 11 and the warning post 12 are also installed in the detection and collection chamber 1 using a modular splicing method.

[0042] Modular assembly has the advantages of reducing costs and increasing assembly efficiency.

[0043] The splicing methods in this application may include, but are not limited to, threads, snaps, riveting, set screws, flanges, and snap rings.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A modular integrated device for collecting and detecting soil gases, characterized in that, It includes a detection collection chamber (1) and an extension collection chamber (2). The detection collection chamber (1) is equipped with a detection host (3) inside the upper side. The lower side wall of the detection collection chamber (1) and the side wall of the extension collection chamber (2) are both equipped with ventilation channels (101). The extension collection chamber (2) can be installed at the lower end of the detection collection chamber (1) or at the lower end of other extension collection chambers (2). The extension collection chamber (2) is used as an optional component to increase the gas collection range of the detection collection chamber (1).

2. The modular integrated soil gas collection and detection device according to claim 1, characterized in that, The detection and collection chamber (1) includes an underground section and a top cover (11), which is exposed above ground.

3. The modular integrated soil gas collection and detection device according to claim 2, characterized in that, The underground section and the top cover (11) are connected by a splicable structure or an integrated structure, and the top cover (11) can be opened and closed.

4. The modular integrated soil gas collection and detection device according to claim 1, characterized in that, The detection and collection chamber (1) includes a buried section at the bottom and a warning post (12) at the top. The detection host (3) is located inside the warning post (12), and the warning post (12) is exposed on the ground.

5. The modular integrated soil gas collection and detection device according to claim 4, characterized in that, The buried section and the warning post (12) are connected by a splicable structure or an integrated structure.

6. The modular integrated soil gas collection and detection device according to any one of claims 2-5, characterized in that, The length of the underground section is the same as the length of the extended collection chamber (2).

7. The modular integrated soil gas collection and detection device according to claim 1, characterized in that, The detection collection chamber (1) is provided with a detection chamber and a main collection chamber that are connected. The detection chamber is located on the upper side of the main collection chamber. The detection host (3) is provided in the detection chamber. The extension collection chamber (2) is connected to the main collection chamber or other extension collection chambers from the top of the extension collection chamber (2). The ventilation channel (101) is connected to the main collection chamber or the extension collection chamber.

8. The modular integrated soil gas collection and detection device according to claim 1 or 7, characterized in that, The top of the extended collection chamber (2) is set as a first modular splicing part (21), and the bottom of the detection collection chamber (1) and the extended collection chamber (2) are set as a second modular splicing part. The first modular splicing part (21) and the second modular splicing part can be docked and fixed.

9. The modular integrated soil gas collection and detection device according to claim 8, characterized in that, The second modular splicing part at the bottom of the detection collection chamber (1) and the extended collection chamber (2) can be fitted with a modular sealing cover (4).

10. The modular integrated soil gas collection and detection device according to claim 1 or 7, characterized in that, The ventilation channel (101) has ventilation holes and a filter screen is provided on the ventilation channel (101).

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