Device for rapidly collecting soil along long oil and gas conveying pipeline

Abstract

The invention discloses a device for rapidly collecting soil along a long oil and gas pipeline in the field of soil sampling, and the device comprises a sampling assembly which comprises a sampling pipe, a separation structure and a sealing assembly, the separation structure is arranged in the sampling pipe, and the sampling pipe is uniformly divided into three same cavities by the separation structure; the sealing assembly is used for sealing two adjacent cavities at the same time, and the sealing assembly can rotate and switch to seal the cavities; the sensing modules are arranged in the pipe walls of the sampling pipes corresponding to the three cavities, and the probes are communicated with the interiors of the cavities; the controller is electrically connected with the sensing module; the invention also discloses a sampling method. The soil sampling device has the beneficial effects that the separation structure and the sealing assembly are arranged in the sampling pipe, layered soil sampling of the sampling pipe can be achieved, soil of different depths cannot make contact with one another, the sensing module is arranged in the pipe wall of the sampling pipe, soil detection can be completed while sampling is conducted, the soil does not need to be submitted for detection, and the sampling efficiency is improved. And the soil detection efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of soil sampling, and more specifically to a rapid soil sampling device along long-distance oil and gas pipelines. Background Technology

[0002] Currently, soil investigation work in the ecological and environmental impact assessment of long-distance oil and gas pipeline projects usually adopts the traditional ring sampling method and manual laboratory testing.

[0003] Subsequently, various soil sampling devices emerged, which solved the problem of soil sampling requiring multiple excavations at different depths, which was time-consuming, labor-intensive, and damaged surface vegetation. However, most of them only had sampling functions, and therefore may also have the following two problems: First, it is impossible to collect and test soil samples in real time, requiring them to be transported to a laboratory for testing, which takes a long time. Second, traditional devices are difficult to meet the needs of stratified sampling in narrow areas along the pipeline, especially in complex terrains such as steep slopes and wetlands, where operation is inconvenient.

[0004] To address this, we propose a rapid soil sampling device for long-distance oil and gas pipelines. Summary of the Invention

[0005] To address the aforementioned shortcomings of existing technologies, this invention provides a rapid soil sampling device along long-distance oil and gas pipelines.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows: A rapid soil sampling device along a long-distance oil and gas pipeline includes: a sampling component comprising a sampling tube, a partition structure, and a sealing component; the partition structure is disposed inside the sampling tube and uniformly divides the sampling tube into three identical cavities; the sealing component is used to simultaneously seal two adjacent cavities and can rotate to switch between sealing cavities; a sensing module is disposed inside the wall of the sampling tube corresponding to the three cavities, and the probe is connected to the interior of the cavity; the sensing module is used to sense the soil pH value and soil moisture inside the sampling tube; and a controller is electrically connected to the sensing module.

[0007] By setting up a partition structure and a sealing component, the partition structure divides the sampling tube into three identical cavities, while the sealing component simultaneously closes two cavities and opens one. When the sampling tube is inserted into the soil, only one cavity is filled with soil. Once that cavity is full, the sealing component is rotated to close the soil-filled cavity and one of the unfilled cavities, while opening the unfilled cavity. As the sampling tube is inserted deeper, the soil fills the opened cavity. After the cavity is filled, the sealing component is rotated again to open the last cavity and close the two soil-filled cavities. The sampling tube is then inserted deeper again until the last cavity is filled with soil. This completes the stratified sampling of soil at different depths at the same location, and soil from different depths does not mix. Furthermore, a sensing module is installed inside the sampling tube wall to collect soil pH and moisture data as the soil enters the corresponding cavity, eliminating the need to send the soil to a testing agency or laboratory for analysis, thus saving on testing procedures and improving testing efficiency.

[0008] Further defining the separation structure, it includes a fixed column and a partition plate. The top of the fixed column is concentrically fixed to the inner wall of the top of the sampling tube. The partition plate consists of three pieces, which are evenly spaced around the perimeter of the fixed column, with their outer ends in contact with the inner wall of the sampling tube. This separation structure is simple and easy to manufacture.

[0009] Further defining the enclosure, the enclosure includes a mounting frame, a sealing plate, a rotating shaft, a driven reduction gear, a driving gear, and a drive motor. The mounting frame is in the shape of an "A" and its outer end is fixed to the top surface of the sampling tube via a vertical rod. The rotating shaft passes through the fixed column and its top end passes through the top surface of the sampling tube, located between the mounting frame and the sampling tube. The sealing plate is fixed to the bottom end of the rotating shaft and its area is the same as the area of ​​the two adjacent cavities. The driven reduction gear is fixed to the rotating shaft between the mounting frame and the sampling tube. The drive motor is vertically mounted on the mounting frame and its output shaft passes through the mounting frame. The driving gear is fixed to the output shaft between the mounting frame and the sampling tube and meshes with the driving reduction gear. The drive motor has a self-locking function.

[0010] With this enclosure component designed in this way, when the enclosure needs to be switched, the drive motor is turned on, the drive gear rotates, the drive gear rotates, the driven gear rotates, the driven gear rotates, the shaft rotates, and the enclosure plate rotates, thus achieving the switching. The driven gear increases the output torque of the drive motor, making the switching more stable and effectively pushing away soil obstructions to achieve the switching.

[0011] Furthermore, the sensing module includes a pH sensor and a humidity sensor, which are integrated and acquire data through the same housing and probe. By using an integrated soil detection sensor as the sensing module, the structure is simple and easier to install.

[0012] Further defining the features, each cavity has a sampling hole along its length inside the sampling tube wall. The bottom of the sampling hole bends inward to connect with the inside of the sampling tube, and the top of the sampling hole penetrates the top surface of the sampling tube. The inner wall of the sampling hole has an internal thread. The housing of the sensing module is also cylindrical, and the outer surface has an external thread that matches the internal thread. The depth of the sampling hole matches the total length of the housing of the sensing module and the probe, so that the probe is located at the bottom of the sampling hole.

[0013] By creating a sampling hole, the probe of the sensing module is fixed inside the sampling hole through the housing, with its bottom end located at the bottom of the sampling hole. When soil enters the sampling tube, the soil will enter the sampling hole and contact the bottom end of the probe. At this time, the sensing module can collect the pH value and humidity data of the soil at that location, which is very convenient.

[0014] Further defined, the sampling tube includes a top plate and three side plates; all side plates are arc plates, and the three side plates are cylindrical in the installed state. The top plate and side plates are respectively provided with mounting holes, and the collection holes are also respectively provided on the top plate and side plates. The mounting holes are threaded holes, and the mounting holes are staggered with the collection holes and the mounting frame. The top plate and side plates are fixed by screwing mounting bolts into the mounting holes. The top of the fixing column is fixed at the center of the top plate.

[0015] This sampling tube setup allows the side plate to be disassembled after sampling, facilitating the cleaning of the soil inside the sampling tube. The side plate and top plate are secured with bolts and threaded mounting holes for added stability.

[0016] Furthermore, the top of the mounting frame is fixedly equipped with a mounting rod, and the top of the mounting rod is equipped with a mounting head for fixed connection with the vibrator. With the mounting rod and mounting head set in this way, the mounting rod with the sampling tube connected to it can be fixed on the vibrator. The vibration of the sampling tube by the vibrator makes it easier for the sampling tube to penetrate deeper into the soil for sampling.

[0017] A sampling method, using the aforementioned rapid soil sampling device along a long-distance oil and gas pipeline, includes the following steps: S1. Connect the top of the mounting rod to the output end of the vibrator, align the bottom of the sampling tube vertically with the soil surface, and start the vibrator to extend the sampling tube into the soil. S2. When the depth of the sampling tube into the soil is the same as the length of the sampling tube, stop the vibrator, start the drive motor to switch the closed cavity, close the cavity filled with soil and open one of the cavities that have not collected soil. At this time, the sensing module in the cavity filled with soil transmits the pH value data and humidity data of the shallow soil to the controller in real time, and then starts the vibrator again. S3. When the sampling tube enters the soil to a depth equal to twice the length of the sampling tube, stop the vibrator, start the drive motor to switch the closed cavity, close the two cavities filled with soil and open the cavity without soil. At this time, the sensing module in the second cavity filled with soil transmits the pH value data and humidity data of the middle soil layer to the controller in real time, and then starts the vibrator again. S4. When the sampling tube enters the soil to a depth equal to three times its length, the vibrator is stopped. At this point, the sensing module that has collected soil for the third time transmits the pH and humidity data of the deep soil to the controller in real time, completing the stratified sampling and real-time sensing of the soil.

[0018] The beneficial effects of this invention are as follows: by setting a partition structure and a sealing component inside the sampling tube, layered soil sampling can be achieved, and soil at different depths will not come into contact with each other. By setting a sensing module inside the tube wall of the sampling tube, soil detection can be completed at the same time as sampling, without having to send the soil for testing, thus improving the efficiency of soil detection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the internal structure of the present invention from a frontal view. Figure 2 This is a schematic diagram illustrating the interaction between the sensing module and the sampling tube of the present invention. Figure 3 A top view of the present invention; Figure 4 This is an exploded view of the sampling tube from a top-down perspective; Figure 5 This is a bottom view of the sampling tube without the sealing plate installed. Figure 6 This is a bottom view of the sampling tube with the enclosure plate installed. Figure 7 This is a diagram showing the connection relationships of the electrical components in this invention.

[0020] The symbols for each component are as follows: Sampling component 1, sampling tube 11, top plate 111, side plate 112, collection hole 113, mounting hole 114, partition structure 12, fixing column 121, partition plate 122, sealing component 13, mounting bracket 131, sealing plate 132, rotating shaft 133, driven reduction gear 134, driving gear 135, drive motor 136, sensing module 2, pH sensor 21, humidity sensor 22, controller 3, mounting rod 4, mounting head 5. Detailed Implementation

[0021] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0022] Example: like Figures 1-7 As shown, a rapid soil sampling device along a long-distance oil and gas pipeline includes a sampling component 1, a sensing module 2, and a controller 3. The sampling component 1 includes a sampling tube 11, a partition structure 12, and a sealing component 13. The partition structure 12 is disposed inside the sampling tube 11 and divides the sampling tube 11 into three identical cavities. The sealing component 13 is used to simultaneously seal two adjacent cavities and can rotate to switch between sealing cavities. The sampling tube 11 includes a top plate 111 and three side plates 112. The side plates 112 are all arc plates, and the three side plates 112 are cylindrical in the installed state. The partition structure 12 includes a fixing column 121 and partition plates 122. The top end of the fixing column 121 is concentrically fixed to the bottom surface of the top plate 111 with the sampling tube 11. The partition plates 122 include three pieces, which are evenly spaced around the periphery of the fixing column 121, and the outer ends are in contact with the inner walls of the side plates 112. The enclosure assembly 13 includes a mounting frame 131, an enclosure plate 132, a rotating shaft 133, a driven reduction gear 134, a driving gear 135, and a drive motor 136. The mounting frame 131 is in the shape of an "A" and its outer end is fixed to the top surface of the top plate 111 by a vertical rod. The rotating shaft 133 passes through the fixed column 121 and its top end passes through the top surface of the top plate 111, located between the mounting frame 131 and the sampling tube 11. The enclosure plate 132 is fixed to the bottom end of the rotating shaft 133 and its area is the same as the area of ​​the two adjacent cavities. The driven reduction gear 134 is fixedly mounted on the rotating shaft 133 between the mounting frame 131 and the top plate 111. The drive motor 136 is vertically mounted on the mounting frame 131 and its output shaft passes through the mounting frame 131. The driving gear 135 is fixedly mounted on the output shaft between the mounting frame 131 and the top plate 111 and meshes with the driving reduction gear. The drive motor 136 has a self-locking function. The top of the mounting frame 131 is fixedly provided with a mounting rod 4, and the top end of the mounting rod 4 is provided with a mounting head 5 for fixed connection with the vibrator. The sensing module 2 is used to sense the soil pH and soil moisture in the sampling tube 11. The sensing module 2 includes a pH sensor 21 and a humidity sensor 22. The pH sensor 21 and the humidity sensor 22 are integrated and collect data through the same housing and the same probe. Each cavity has a collection hole 113 in the tube wall along the length direction. The bottom end of the collection hole 113 is bent inward and communicates with the inside of the sampling tube 11. The top end penetrates the top surface of the sampling tube 11. The inner wall of the collection hole 113 has an internal thread. The housing of the sensing module 2 is also cylindrical and has an external thread matching the internal thread on its outer surface. The depth of the collection hole 113 matches the total length of the housing and the probe of the sensing module 2 so that the probe is located at the bottom of the collection hole 113. Mounting holes 114 are provided on the top plate 111 and the side plate 112 respectively. Collection holes 113 are also provided on the top plate 111 and the side plate 112 respectively. The mounting holes 114 are threaded holes, and the mounting holes 114 are offset from the collection holes 113 and the mounting bracket 131. The top plate 111 and the side plate 112 are fixed by screwing the mounting bolts into the mounting holes 114. The controller 3 is electrically connected to the pH sensor 21 and the humidity sensor 22.

[0023] By setting up the partition structure 12 and the sealing component 13, the partition structure 12 divides the sampling tube 11 into three identical cavities, while the sealing component 13 simultaneously closes two cavities and opens one cavity. When the sampling tube 11 is inserted into the soil for sampling, only one cavity is filled with soil. After the cavity is filled with soil, the sealing component 13 is rotated to close the cavity filled with soil and one of the cavities that is not yet filled with soil, while opening one of the cavities that is not yet filled with soil. At this time, as the sampling tube 11 is inserted deeper, the soil will fill the opened cavity. After the cavity is filled with soil, the sealing component 13 is rotated again to open the last cavity and close the two cavities filled with soil, and the sampling tube is inserted deeper again. The sampling tube 11 is designed so that the last cavity is filled with soil, thus completing the stratified sampling of soil at different depths at the same location without mixing soil from different depths. A sensing module 2 is installed inside the sampling tube 11 to collect pH and moisture data of the soil as it enters the corresponding cavity, eliminating the need to send the soil to a testing institution or laboratory for analysis, saving on testing procedures and improving efficiency. This separation structure 2 is simple and easy to manufacture. The enclosed component 13 is designed so that when switching between enclosed cavities is required, the drive motor 136 is activated, causing the drive gear 135 to rotate. The rotation of the driven reduction gear 134 drives the driven reduction gear 134 to rotate, which in turn drives the rotating shaft 133 to rotate, which in turn drives the closed plate 132 to rotate, thereby achieving the switching. The driven reduction gear 134 increases the output torque of the drive motor 136, making the switching more stable and effectively pushing away soil obstructions. The integrated soil detection sensor used as the sensing module 2 has a simple structure and is easier to install. By opening a sampling hole 113, the probe of the sensing module 2 is fixed inside the sampling hole 113 by the housing, with its bottom end located at the bottom of the sampling hole 113. This allows soil to enter the sampling tube 11. When the soil enters the sampling hole 113 and contacts the bottom of the probe, the sensing module 2 can collect the pH value and humidity data of the soil at that location, which is very convenient. This arrangement of the sampling tube 11 allows the side plate 112 to be disassembled after sampling, making it easy to clean the soil inside the sampling tube 11 after sampling. The side plate 112 and the top plate 111 are fixed by the mounting bolts and the threaded mounting holes 114, making them more stable. This arrangement of the mounting rod 4 and the mounting head 5 allows the mounting rod 4, which is connected to the sampling tube 11, to be fixed on the vibrator. The vibration of the sampling tube 11 by the vibrator makes it easier for the sampling tube 11 to penetrate deeper into the soil for sampling.

[0024] A sampling method, using the aforementioned rapid soil sampling device along a long-distance oil and gas pipeline, includes the following steps: S1. Connect the top of the mounting rod 4 to the output end of the vibrator, align the bottom of the sampling tube 11 vertically with the soil surface, and start the vibrator to extend the sampling tube 11 into the soil. S2. When the depth of the sampling tube 11 into the soil is the same as the length of the sampling tube 11, stop the vibrator, start the drive motor 136 to switch the closed cavity, close the cavity filled with soil and open one of the cavities that have not collected soil. At this time, the sensing module 2 in the cavity filled with soil transmits the pH value data and humidity data of the shallow soil to the controller 3 in real time, and then starts the vibrator again. S3. When the depth of the sampling tube 11 into the soil is the same as twice the length of the sampling tube 11, stop the vibrator, start the drive motor 136 to switch the closed cavity, close the two cavities filled with soil and open the cavity without soil. At this time, the sensing module 2 in the second cavity filled with soil transmits the pH value data and humidity data of the middle soil to the controller 3 in real time, and then starts the vibrator again. S4. When the sampling tube 11 enters the soil to a depth equal to three times its length, the vibrator is stopped. At this time, the sensing module 2, which collects soil for the third time, transmits the pH value and humidity data of the deep soil to the controller 3 in real time, thus completing the soil stratification sampling and real-time sensing.

Claims

1. A rapid soil sampling device along a long-distance oil and gas pipeline, characterized in that, include: The sampling component (1) includes a sampling tube (11), a partition structure (12) and a sealing component (13). The partition structure (12) is disposed inside the sampling tube (11) and divides the sampling tube (11) into three identical cavities. The sealing component (13) is used to simultaneously seal two adjacent cavities and the sealing component (13) can rotate to switch the sealed cavities. The sensing module (2) is located inside the wall of the sampling tube (11) corresponding to the three cavities, and the probe is connected to the inside of the cavity. The sensing module (2) is used to sense the soil pH value and soil moisture inside the sampling tube (11). The controller (3) and the sensing module (2) are electrically connected.

2. The rapid soil sampling device along a long-distance oil and gas pipeline according to claim 1, characterized in that, The separation structure (12) includes a fixed column (121) and a partition plate (122). The top end of the fixed column (121) is concentrically fixed to the inner wall of the top of the sampling tube (11). The partition plate (122) includes three pieces. The three partition plates (122) are evenly spaced around the circumference of the fixed column (121), and the outer ends are in contact with the inner wall of the sampling tube (11).

3. The rapid soil sampling device along a long-distance oil and gas pipeline according to claim 2, characterized in that, The enclosed assembly (13) includes a mounting bracket (131), a sealing plate (132), a rotating shaft (133), a driven reduction gear (134), a driving gear (135), and a drive motor (136). The mounting bracket (131) is in the shape of an "A" and its outer end is fixed to the top surface of the sampling tube (11) by a vertical rod. The rotating shaft (133) passes through the fixed column (121) and its top end passes through the top surface of the sampling tube (11) and is located between the mounting bracket (131) and the sampling tube (11). The sealing plate (132) is fixed to the rotating shaft. The shaft (133) has the same area at its bottom end as the adjacent two cavities. The driven reduction gear (134) is fixedly mounted on the shaft (133) between the mounting bracket (131) and the sampling tube (11). The drive motor (136) is vertically mounted on the mounting bracket (131) and its output shaft passes through the mounting bracket (131). The driving gear (135) is fixedly mounted on the output shaft between the mounting bracket (131) and the sampling tube (11) and meshes with the driving reduction gear. The drive motor (136) has a self-locking function.

4. The rapid soil sampling device along a long-distance oil and gas pipeline according to claim 3, characterized in that, The sensing module (2) includes a pH sensor (21) and a humidity sensor (22). The pH sensor (21) and the humidity sensor (22) are integrated and acquire data through the same housing and the same probe.

5. The rapid soil sampling device along a long-distance oil and gas pipeline according to claim 4, characterized in that, Each cavity has a sampling hole (113) in the inner wall of the sampling tube (11) along the length direction. The bottom end of the sampling hole (113) is bent inward to communicate with the inside of the sampling tube (11), and the top end penetrates the top surface of the sampling tube (11). The inner wall of the sampling hole (113) is provided with an internal thread. The housing of the sensing module (2) is also cylindrical, and an external thread matching the internal thread is provided on the outer surface. The depth of the sampling hole (113) matches the total length of the housing and the probe of the sensing module (2) so that the probe is located at the bottom of the sampling hole (113).

6. The rapid soil sampling device along a long-distance oil and gas pipeline according to claim 5, characterized in that, The sampling tube (11) includes a top plate (111) and three side plates (112); the side plates (112) are all arc plates, and the three side plates (112) are cylindrical in the installation state. The top plate (111) and the side plates (112) are respectively provided with mounting holes (114). The collection hole (113) is also respectively provided on the top plate (111) and the side plates (112). The mounting hole (114) is a threaded hole, and the mounting hole (114) is offset from the collection hole (113) and the mounting bracket (131). The top plate (111) and the side plates (112) are fixed by screwing the mounting bolts into the mounting hole (114). The top end of the fixing column (121) is fixed at the center of the top plate (111).

7. The rapid soil sampling device along a long-distance oil and gas pipeline according to claim 6, characterized in that, The top of the mounting bracket (131) is fixedly provided with a mounting rod (4), and the top end of the mounting rod (4) is provided with a mounting head (5) for fixed connection with the vibrator.

8. A sampling method, comprising soil sampling using a rapid soil sampling device along a long-distance oil and gas pipeline as described in claim 6, characterized in that, Includes the following steps: S1. Connect the top of the mounting rod (4) to the output end of the vibrator, vertically align the bottom of the sampling tube (11) with the soil surface, and start the vibrator to extend the sampling tube (11) into the soil. S2. When the depth of the sampling tube (11) into the soil is the same as the length of the sampling tube (11), stop the vibrator, start the drive motor (136) to switch the closed cavity, close the cavity filled with soil and open one of the cavities that have not collected soil. At this time, the sensing module (2) in the cavity filled with soil transmits the pH value data and humidity data of the shallow soil to the controller (3) in real time, and starts the vibrator again. S3. When the depth of the sampling tube (11) into the soil is the same as twice the length of the sampling tube (11), stop the vibrator, start the drive motor (136) to switch the closed cavity, close the two cavities filled with soil and open the cavity without soil. At this time, the sensing module (2) in the cavity filled with soil for the second time transmits the pH value data and humidity data of the middle soil to the controller (3) in real time, and starts the vibrator again. S4. When the depth of the sampling tube (11) into the soil is the same as three times the length of the sampling tube (11), the vibrator is stopped. At this time, the sensing module (2) in the cavity filled with soil for the third time transmits the pH value data and humidity data of the deep soil to the controller (3) in real time, thus completing the soil stratification sampling and real-time sensing.

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