Drainage and gas collection device, system and method

Abstract

The invention provides a water drainage and gas collection device, system and method. The water drainage and gas collection device comprises a turntable mechanism and a push rod mechanism, wherein the turntable mechanism is provided with a water-containing and gas-collecting bottle, and the push rod mechanism is provided with a gas inlet needle for feeding gas from the desorption instrument and a water discharge needle for discharging water to the water discharge pipe. The drainage and gas collection system comprises the drainage and gas collection device and a software control center. The drainage and gas collection method adopts the drainage and gas collection system for gas production. The automatic drainage and gas collection device has the beneficial effects that the rotary table mechanism and the push rod mechanism are matched to work, so that the gas inlet needle and the water drainage needle can be automatically inserted into the corresponding water-containing and gas-collecting bottles, and automatic water drainage and gas collection operation is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of oil and gas exploration experimental equipment, and in particular to a drainage and gas collection device, system and method. Background Art

[0002] Shale gas, a clean and efficient form of energy, has achieved remarkable breakthroughs and commercial success in domestic exploration and development in recent years. With growing environmental awareness and the continuous optimization of energy structures, shale gas, as a key alternative to traditional energy sources, is gaining widespread attention from all sectors of society.

[0003] In the process of shale gas exploration and development, accurate evaluation of shale gas content is particularly important. This evaluation is not only directly related to the estimation of resource volume, but also the key basis for selecting favorable exploration areas. Among them, scientific and systematic evaluation of shale gas content can provide the most direct and critical data support for exploration and development, thereby greatly improving the efficiency and success rate of exploration and development; through in-depth analysis of the gas-bearing characteristics of shale, shale gas reserves and distribution can be more accurately assessed, providing a strong decision-making basis for subsequent mining work; at the same time, gas content evaluation can also help us select favorable areas, avoid blind investment and waste of resources, and maximize resource utilization. Obviously, shale gas content evaluation plays an irreplaceable role in promoting the development of the shale gas industry. By continuously improving and optimizing evaluation methods and technical means, the accuracy and reliability of evaluation results can be improved, providing a strong guarantee for the healthy development of the shale gas industry.

[0004] Determination of gas content by heating desorption is a common experimental method for evaluating rock gas content, especially for unconventional shale reservoirs, whose micro- and nano-pores contain abundant hydrocarbon gases. Due to differences in the original organic matter type, degree of thermal evolution, and pore structure of different shales, hydrocarbon gas compositions and isotopes vary significantly. Even the gas desorbed from the same rock sample at different times may exhibit significant differences in composition and isotopes. Therefore, it is essential to collect desorbed gas samples at different times during the desorption process to analyze gas properties and explore the shale gas storage mechanism.

[0005] Currently, manual drainage and gas collection methods are used to collect gas samples during desorption experiments. Furthermore, high-density desorption experiments are commonly performed during shale gas content determination. This involves heating and desorbing multiple rock samples simultaneously, and the desorption cycle lasts for more than ten hours. This manual drainage and gas collection process is extremely time-consuming and labor-intensive. Specifically, the manual drainage and gas collection method requires the experimenter to constantly monitor the experimental process and manually perform the drainage and gas collection steps. This not only increases the experimenter's labor intensity but can also lead to inaccurate data due to human error. Prolonged manual operation can also cause fatigue in the experimenter, further affecting the accuracy of the experimental results.

[0006] Therefore, it is necessary to study a drainage and gas collection device, system and method with a high degree of automation and easy operation to solve the above problems or alleviate the impact of the above problems. Summary of the Invention

[0007] On the one hand, the present invention provides a drainage and gas collection device, which, through the cooperation of a turntable mechanism and a push rod mechanism, can automatically insert the air intake needle and the drainage needle into the corresponding water-filled gas collecting bottle, thereby realizing automated drainage and gas collection operations, thereby effectively solving or alleviating the above-mentioned technical problems.

[0008] The drainage and gas collecting device of the present invention comprises a rotating disk mechanism and a push rod mechanism;

[0009] The turntable mechanism is provided with a water-filled gas collecting bottle, which is filled with water. The turntable mechanism can position the corresponding water-filled gas collecting bottle by rotating so that it corresponds to the gas collecting position of the push rod mechanism.

[0010] The push rod mechanism is provided with an air intake needle for taking in air from the desorber and a water drainage needle for draining water to the drain pipe. The push rod mechanism can push the air intake needle and the water drainage needle to be inserted into the corresponding water-filled gas collecting bottle to perform water drainage and gas collection operations.

[0011] In one embodiment, the turntable mechanism includes a rotating disk, and the rotating disk is provided with a plurality of mounting holes at intervals along its own rotation direction, and each of the mounting holes is correspondingly provided with one of the water-filled and gas-collecting bottles.

[0012] In one embodiment, the turntable mechanism further includes a rotation position control motor, a rotation shaft of the rotation position control motor is fixedly connected to the rotating disk, and the rotation position control motor can control the rotation angle of the rotating disk.

[0013] In one embodiment, the push rod mechanism includes an electric push rod and a push rod positioning seat arranged at the fixed end of the electric push rod, the movable end of the electric push rod is provided with a cylinder, and the air intake needle and the drainage needle are both arranged at the end of the cylinder.

[0014] In one embodiment, the water-containing and gas-collecting bottle includes an outer cup sleeve with an opening facing upward and an inner cup sleeve sealed at the bottle mouth end. The outer side of the outer cup sleeve is fixedly connected to the mounting hole of the turntable mechanism, and the inner cup sleeve is inverted inside the outer cup sleeve. The outer cup sleeve has an inverted cone structure and can be fitted with inner cup sleeves of different sizes.

[0015] In one embodiment, an intermediate cup sleeve is provided between the outer cup sleeve and the inner cup sleeve. The structure of the intermediate cup sleeve is the same as that of the outer cup sleeve, and the cup wall of the intermediate cup sleeve is made of a flexible material and can form a flexible contact with the bottle mouth end of the inner cup sleeve.

[0016] In one embodiment, the drainage and gas collecting device further comprises a pressing plate mechanism, the pressing plate mechanism comprising a pressing plate and a push-pull rod assembly, the pressing plate being connected to the moving end of the push-pull rod assembly, and the extrusion end of the pressing plate corresponding to the gas collecting position;

[0017] The push-pull rod assembly can drive the pressure plate to move relative to the push rod mechanism, so that its extrusion end can press the water-filled gas collecting bottle in the gas collecting position toward the push rod mechanism.

[0018] In one embodiment, a locator is provided on the fixed end of the push-pull rod assembly, and the detection light emitted by the locator passes through the bottle mouth of the water-filled gas collecting bottle at the gas collecting position. The locator can determine whether the air inlet needle and the water discharge needle are inserted into the water-filled gas collecting bottle by whether the detection light is blocked.

[0019] On the other hand, the present invention also provides a drainage and gas collection system, which includes the drainage and gas collection device as described above and a software control center. The software control center is electrically connected to each actuator of the drainage and gas collection device, and the software control center can control the drainage and gas collection device to perform automatic drainage and gas collection operations.

[0020] In another aspect, the present invention provides a drainage gas collection method, wherein the drainage gas collection method uses the drainage gas collection system as described above to collect gas, and the specific steps include at least:

[0021] In response to the desorption process of the desorber reaching a specified time, the turntable mechanism is controlled to rotate so that the corresponding water-filled gas collecting bottle is in the gas collecting position;

[0022] Controlling the push rod mechanism to push the air intake needle and the water drainage needle toward the water-filled gas collecting bottle and insert them into the water-filled gas collecting bottle to start water drainage and gas collection; and controlling the push rod mechanism to pull out the air intake needle and the water drainage needle from the water-filled gas collecting bottle after a predetermined gas collection time;

[0023] In response to the desorption process of the desorber reaching the next designated time, the turntable mechanism is controlled to rotate so that another corresponding water-filled gas collecting bottle is in the gas collecting position, and the operation of draining water and collecting gas is repeated.

[0024] The drainage and gas collecting device provided by the present invention has at least the following beneficial effects compared with the prior art:

[0025] The drainage gas collection device of the present invention uses a turntable mechanism to drive the water-filled gas collection bottle to rotate to the designated gas collection position, and a push rod mechanism drives the air inlet needle and the drainage needle to insert into the corresponding water-filled gas collection bottle for gas collection. It can automatically complete the drainage gas collection operation, and the drainage gas collection device can specify the water-filled gas collection bottle as needed. It can also respond to the desorption process of the desorber to collect desorbed gas samples at different times of the rock to conduct gas property analysis to explore the shale gas occurrence mechanism. Compared with the traditional manual drainage gas collection method, such a drainage gas collection device can greatly save time and manpower, reduce the labor intensity of the test personnel and the negative impact of human factors on the experimental results, and improve the gas collection efficiency and the accuracy of the experimental results.

[0026] The drainage and gas collection system provided by the present invention also has the above-mentioned beneficial effects because it includes the above-mentioned drainage and gas collection device.

[0027] The drainage and gas collection method provided by the present invention also has the above-mentioned beneficial effects due to the use of the above-mentioned drainage and gas collection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Hereinafter, the present invention will be described in more detail based on embodiments with reference to the accompanying drawings.

[0029] Figure 1 This is a structural diagram of a drainage and gas collecting device according to an embodiment of the present invention;

[0030] Figure 2 is another structural schematic diagram of the drainage and gas collecting device according to an embodiment of the present invention;

[0031] Figure 3 It is a structural schematic diagram of a water-filled gas collecting bottle with multiple cup sleeves in an embodiment of the present invention.

[0032] In the drawings, like parts are given like reference numerals, but the drawings are not necessarily drawn to scale.

[0033] Reference numerals:

[0034] 1-turntable mechanism, 11-rotating disk, 12-rotating position control motor, 13-mounting hole,

[0035] 2-Pressing plate mechanism, 21-Push-pull rod, 22-Pressing plate, 23-Adjusting nut, 24-Locator, 25-Push-pull rod seat,

[0036] 3-push rod mechanism, 31-electric push rod, 32-push rod positioning seat,

[0037] 4-intake mechanism, 41-intake pipe, 42-intake valve, 43-desorption instrument,

[0038] 5-drainage mechanism, 51-drain pipe, 52-drain valve,

[0039] 6-water gas collecting bottle, 61-outer cup sleeve, 62-middle cup sleeve, 63-inner cup sleeve, 64-rubber stopper,

[0040] 7-drain needle, 8-air inlet needle, 9-cylinder. DETAILED DESCRIPTION

[0041] The present invention will be further described below with reference to the accompanying drawings.

[0042] Example 1

[0043] like Figure 1 As shown, the drainage and gas collecting device of the present invention includes a rotary disc mechanism 1 and a push rod mechanism 3;

[0044] The turntable mechanism 1 is provided with a water-filled gas collecting bottle 6, which is filled with water. The turntable mechanism 1 can position the corresponding water-filled gas collecting bottle 6 by rotating so that it corresponds to the gas collecting position of the push rod mechanism 3.

[0045] The push rod mechanism 3 is provided with an air intake needle 8 for taking in air from the desorber 43 and a water drainage needle 7 for draining water to the drain pipe 51. The push rod mechanism 3 can push the air intake needle 8 and the water drainage needle 7 to be inserted into the corresponding water-filled gas collecting bottle 6 for water drainage and gas collection operations.

[0046] Specifically, the drainage and gas collection device mainly includes a turntable mechanism 1 and a push rod mechanism 3. The two mechanisms work together to complete the task of drainage and gas collection.

[0047] The turntable mechanism 1 is the core part of the drainage and gas collection device, and can be equipped with multiple water-filled gas collecting bottles 6, and the inside of the water-filled gas collecting bottles 6 is pre-filled with water for gas collection by drainage and gas collection. The water-filled gas collecting bottles 6 have good sealing properties to ensure that no leakage or damage occurs during the drainage and gas collection process, and the water in the water-filled gas collecting bottles 6 is generally salt water. The turntable mechanism 1 is firmly set and has a precise rotation function. It can be driven by a motor or other mechanical transmission method. The turntable mechanism 1 can be easily rotated so that the corresponding water-filled gas collecting bottle 6 can be accurately positioned at the gas collection position. This positioning method can ensure that when drainage and gas collection operations are required, the corresponding water-filled gas collecting bottle 6 can accurately correspond to the gas collection position where the push rod mechanism 3 is located.

[0048] The push rod mechanism 3 is another key part of the water drainage and gas collection device, which is equipped with an air intake needle 8 and a water drainage needle 7. The main function of the air intake needle 8 is to introduce gas from the desorber 43, while the water drainage needle 7 is responsible for draining the water in the water-filled gas collecting bottle 6, thereby making room for collecting gas. The push rod mechanism 3 has a driving force to ensure that the air intake needle 8 and the water drainage needle 7 are accurately inserted into the corresponding water-filled gas collecting bottle 6. When the push rod mechanism 3 is pushed forward, the air intake needle 8 and the water drainage needle 7 can penetrate the seal of the bottle mouth of the water-filled gas collecting bottle 6, and the air intake needle 8 can allow the gas in the desorber 43 to enter the bottle, while the water drainage needle 7 can drain the water in the bottle, ensuring that the gas can be collected smoothly.

[0049] In operation, the turntable mechanism 1 first rotates a certain angle to the appropriate position, aligning a filled water-filled gas collection bottle 6 with the push rod mechanism 3 in the gas collection position. The push rod mechanism 3 then advances, inserting the air intake needle 8 and the water discharge needle 7 into the water-filled gas collection bottle 6. At this point, gas from the desorber 43 begins to enter the bottle, while the water in the bottle is discharged. Once the drainage and air intake processes are complete, the push rod mechanism 3 retracts, and the turntable mechanism 1 rotates again, awaiting the next drainage and gas collection operation.

[0050] Overall, the drainage gas collection device uses a turntable mechanism 1 to drive the water-filled gas collecting bottle 6 to rotate to the designated gas collection position, and the push rod mechanism 3 drives the air inlet needle 8 and the drainage needle 7 to insert into the corresponding water-filled gas collecting bottle 6 for gas collection. It can automatically complete the drainage gas collection operation, and the drainage gas collection device can specify the water-filled gas collecting bottle 6 as needed, and can also respond to the desorption process of the desorber 43 to collect desorbed gas samples of the rock at different times, so as to carry out gas property analysis to explore the shale gas storage mechanism.

[0051] Such a drainage and gas collection device is rationally designed and simple to operate, and can efficiently complete the drainage and gas collection tasks. Compared with the traditional manual drainage and gas collection method, it can greatly save time and manpower, reduce the labor intensity of the test personnel and the negative impact of human factors on the experimental results, and improve the gas collection efficiency and the accuracy of the experimental results.

[0052] It should be noted that the placement of the turntable mechanism 1 and the push rod mechanism 3 of the drainage gas collection device can be adjusted according to specific circumstances, as long as the corresponding water-filled gas collection bottle 6 corresponds to the push rod mechanism 3 and can achieve the corresponding functions. For example, the water-filled gas collection bottle 6 and the push rod mechanism 3 can be in a vertical relationship, or a horizontal relationship. However, the drawings and text of the present invention are mostly presented with the water-filled gas collection bottle 6 and the push rod mechanism 3 in a vertical relationship.

[0053] It should also be noted that the gas collection position generally refers to the corresponding positions of the water-filled gas collection bottle 6 and the push rod mechanism 3 during the drainage gas collection operation, and is not a single point. For example, when the water-filled gas collection bottle 6 and the push rod mechanism 3 are in a vertical relationship, the gas collection position refers to the position of the water-filled gas collection bottle 6 and the push rod mechanism 3 in the horizontal plane; when the water-filled gas collection bottle 6 and the push rod mechanism 3 are in a horizontal relationship, the gas collection position refers to the position of the water-filled gas collection bottle 6 and the push rod mechanism 3 in the vertical plane.

[0054] Example 2

[0055] like Figure 1 As shown, the drainage and gas collecting device of the present invention includes a rotary disc mechanism 1 and a push rod mechanism 3;

[0056] The turntable mechanism 1 is provided with a water-filled gas collecting bottle 6, which is filled with water. The turntable mechanism 1 can position the corresponding water-filled gas collecting bottle 6 by rotating so that it corresponds to the gas collecting position of the push rod mechanism 3.

[0057] The push rod mechanism 3 is provided with an air intake needle 8 for taking in air from the desorber 43 and a water drainage needle 7 for draining water to the drain pipe 51. The push rod mechanism 3 can push the air intake needle 8 and the water drainage needle 7 to be inserted into the corresponding water-filled gas collecting bottle 6 for water drainage and gas collection operations.

[0058] like Figure 1 As shown, in one example, the turntable mechanism 1 includes a rotating disk 11 , and the rotating disk 11 is provided with a plurality of mounting holes 13 at intervals along its own rotation direction, and each mounting hole 13 is correspondingly provided with a water-filled gas collecting bottle 6 .

[0059] Specifically, the rotating disk 11 is a solid circular disc with excellent rotational stability. Multiple mounting holes 13 are evenly spaced along the rotating disk 11's direction of rotation. Each mounting hole 13 corresponds to a corresponding water-collecting gas bottle 6. The design of the mounting holes 13 meets the size and installation requirements of the water-collecting gas bottle 6, ensuring that each water-collecting gas bottle 6 can be securely mounted on the rotating disk 11. Furthermore, the water-collecting gas bottle 6 has excellent sealing properties, ensuring that it will not leak or be damaged during the drainage and gas collection process.

[0060] Furthermore, the mounting hole 13 can be a through hole with an internal thread, and the water-filled gas collecting bottle 6 is provided with an external thread structure that matches the internal thread of the through hole. In this way, the water-filled gas collecting bottle 6 can be arranged in the mounting hole 13 by a threaded connection method.

[0061] In one example, Figure 1 As shown, the turntable mechanism 1 further includes a rotary position control motor 12 , the rotary shaft of the rotary position control motor 12 is fixedly connected to the rotary disk 11 , and the rotary position control motor 12 can control the rotation angle of the rotary disk 11 .

[0062] Specifically, the rotary position control motor 12 has precise rotation control capabilities, and its rotating shaft is tightly coupled to the rotating disk 11 through a fixed connection to ensure the stability and reliability of the rotational movement. When water drainage and gas collection operations are required, the rotary position control motor 12 can start working according to a preset program or operating instructions, precisely controlling the rotation angle of the rotating disk 11 so that the corresponding water-filled gas collection bottle 6 can be positioned at the gas collection position.

[0063] The rotary positioning motor 12 has high control accuracy and can monitor the position and angle of the rotating disk 11 in real time through built-in sensors and control programs to ensure the accuracy of positioning. At the same time, the rotary positioning motor 12 can also enable the turntable mechanism 1 to complete the positioning and switching operations of multiple water-filled gas collecting bottles 6 in a preset order.

[0064] Thus, by equipping the turntable mechanism 1 with a rotary position control motor 12, the turntable 11 can achieve precise control of its rotation angle. The use of the rotary position control motor 12 can significantly improve the operational efficiency and automation of the drainage and gas collection device. Specifically, it can not only reduce the errors and tediousness of manual operation, but also improve the accuracy and reliability of drainage and gas collection operations. The advantages of the rotary position control motor 12 are particularly evident when multiple drainage and gas collection operations need to be performed continuously, greatly improving work efficiency and production benefits.

[0065] Furthermore, the rotary position control motor 12 is provided with a fixed base to provide stable support for the turntable mechanism 1. The rotary position control motor 12 is also provided with a limit switch to ensure that the rotary disk 11 can automatically stop rotating when it reaches a specified position to avoid over-positioning or collision.

[0066] In one example, Figure 1 As shown, the push rod mechanism 3 includes an electric push rod 31 and a push rod positioning seat 32 arranged at the fixed end of the electric push rod 31. The movable end of the electric push rod 31 is provided with a cylinder 9, and the air intake needle 8 and the water discharge needle 7 are both arranged at the end of the cylinder 9.

[0067] Specifically, the push rod mechanism 3 is mainly responsible for pushing the air inlet needle 8 and the water drain needle 7 into the water-filled gas collecting bottle 6 to perform water drainage and gas collection operations. The push rod mechanism 3 includes key components such as an electric push rod 31, a push rod positioning seat 32, and a cylinder 9.

[0068] The electric push rod 31, serving as the power source for the push rod mechanism 3, possesses powerful thrust and precise control capabilities. Its fixed end is securely mounted on the push rod positioning base 32, ensuring the stability and reliability of the entire push rod mechanism 3. Driven by a motor, the electric push rod 31 can telescope according to control commands, thereby moving the cylinder 9 and its associated air intake needle 8 and drain needle 7 for insertion into or removal from the water-filled gas collecting bottle 6.

[0069] The push rod positioning seat 32 serves to position and support the electric push rod 31. It has sufficient strength and stability to withstand the reverse force generated by the electric push rod 31 during operation. The design of the push rod positioning seat 32 should also take into account the convenience of operation and adjustability, making the electric push rod 31 easy to install and remove and able to be adjusted as needed.

[0070] The barrel 9 is a key component of the movable end of the electric push rod 31, housing an air intake needle 8 and a water drainage needle 7. Both the air intake needle 8 and the water drainage needle 7 are fixedly mounted on the ends of the barrel 9, with one end exposed and the other end located within the barrel 9 and connected to the corresponding air intake mechanism 4 or water drainage mechanism 5. The air intake needle 8 draws gas from the air intake mechanism 4, which includes the desorber 43, while the water drainage needle 7 drains water from the water collection bottle 6 into the water drainage mechanism 5.

[0071] It should be noted that the length of the air intake needle 8 and the water drainage needle 7 exposed outside the cylinder 9 can be specifically set according to the corresponding position relationship between the water-filled gas collecting bottle 6 and the cylinder 9. For example, when the water-filled gas collecting bottle 6 is correspondingly arranged vertically above the cylinder 9, the air intake needle 8 and the water drainage needle 7 are moved vertically upward to be inserted into the water-filled gas collecting bottle 6 for gas collection. At this time, the air intake needle 8 should be longer than the water drainage needle 7. Figure 1 As shown, the needle head of the air inlet needle 8 is higher than the needle head of the water discharge needle 7, so that the water in the water collecting bottle 6 can be automatically discharged when gas is collected.

[0072] During operation, the electric push rod 31 begins to operate, driving the cylinder 9 toward the water-filled gas collection bottle 6, allowing the air intake needle 8 and the water drainage needle 7 to be accurately inserted into the water-filled gas collection bottle 6. At this point, the gas in the desorber 43 enters the bottle through the air intake needle 8, while the water in the water-filled gas collection bottle 6 is discharged into the drainage mechanism 5 by the water drainage needle 7. When the drainage and air intake processes are complete, the electric push rod 31 drives the cylinder 9 back, removing the air intake needle 8 and the water drainage needle 7 from the water-filled gas collection bottle 6, thus concluding the drainage and gas collection operation for the water-filled gas collection bottle 6.

[0073] The push rod mechanism 3 is compact and stable, adaptable to various complex working environments, and ensures smooth drainage and gas collection operations. The push rod mechanism 3, through the coordinated operation of the electric push rod 31, the push rod positioning seat 32, and the cylinder 9, can achieve precise control of the air inlet needle 8 and the drain needle 7, providing strong support for drainage and gas collection operations.

[0074] Further, if Figure 1 As shown, the air intake mechanism 4 includes a desorber 43 and an air intake pipe 41 provided at the air outlet end of the desorber 43 and connected to the air intake needle 8 , and an air intake valve 42 is provided on the air intake pipe 41 .

[0075] Specifically, one end of the air inlet pipe 41 is connected to the gas outlet of the desorber 43, and the other end thereof extends into the interior of the cylinder 9 and is connected to the air inlet needle 8. The air inlet pipe 41 can input the gas discharged from the desorber 43 into the air inlet needle 8, and then input the gas into the water-filled gas collecting bottle 6 through the air inlet needle 8.

[0076] More specifically, the air intake pipe 41 may include an air intake main pipe and an air intake branch pipe. A plurality of air intake branch pipes are provided and each of the air intake branch pipes converges onto the air intake main pipe. Each air intake branch pipe is connected to a corresponding air outlet of the desorber 43, and an air intake valve 42 is provided on each air intake branch pipe.

[0077] It should be noted that the air inlet branch pipes are respectively connected to the air outlet ends arranged at different height positions of the desorber 43 to collect gas at different positions in the desorber 43.

[0078] Furthermore, if Figure 1 As shown, the drainage mechanism 5 includes a drainage pipe 51 connected to the drainage needle 7 , and a drainage valve 52 is provided on the drainage pipe 51 .

[0079] Specifically, one end of the drain pipe 51 is connected to the water tank or water receiving tank, and the other end thereof extends into the interior of the cylinder 9 and is connected to the drain needle 7. The drain pipe 51 can discharge the water in the water collecting bottle 6 to the water tank or water receiving tank, and can be controlled by the drain valve 52.

[0080] Example 3

[0081] like Figure 1 As shown, the drainage and gas collecting device of the present invention includes a rotary disc mechanism 1 and a push rod mechanism 3;

[0082] The turntable mechanism 1 is provided with a water-filled gas collecting bottle 6, which is filled with water. The turntable mechanism 1 can position the corresponding water-filled gas collecting bottle 6 by rotating so that it corresponds to the gas collecting position of the push rod mechanism 3.

[0083] The push rod mechanism 3 is provided with an air intake needle 8 for taking in air from the desorber 43 and a water drainage needle 7 for draining water to the drain pipe 51. The push rod mechanism 3 can push the air intake needle 8 and the water drainage needle 7 to be inserted into the corresponding water-filled gas collecting bottle 6 for water drainage and gas collection operations.

[0084] like Figure 1 As shown, in one example, the turntable mechanism 1 includes a rotating disk 11 , and the rotating disk 11 is provided with a plurality of mounting holes 13 at intervals along its own rotation direction, and each mounting hole 13 is correspondingly provided with a water-filled gas collecting bottle 6 .

[0085] Specifically, the rotating disk 11 is a solid circular disc with excellent rotational stability. Multiple mounting holes 13 are evenly spaced along the rotating disk 11's direction of rotation. Each mounting hole 13 corresponds to a corresponding water-collecting gas bottle 6. The design of the mounting holes 13 meets the size and installation requirements of the water-collecting gas bottle 6, ensuring that each water-collecting gas bottle 6 can be securely mounted on the rotating disk 11. Furthermore, the water-collecting gas bottle 6 has excellent sealing properties, ensuring that it will not leak or be damaged during the drainage and gas collection process.

[0086] Furthermore, the mounting hole 13 can be a through hole with an internal thread, and the water-filled gas collecting bottle 6 is provided with an external thread structure that matches the internal thread of the through hole. In this way, the water-filled gas collecting bottle 6 can be arranged in the mounting hole 13 by a threaded connection method.

[0087] In one example, Figure 1 As shown, the turntable mechanism 1 further includes a rotary position control motor 12 , the rotary shaft of the rotary position control motor 12 is fixedly connected to the rotary disk 11 , and the rotary position control motor 12 can control the rotation angle of the rotary disk 11 .

[0088] Specifically, the rotary position control motor 12 has precise rotation control capabilities, and its rotating shaft is tightly coupled to the rotating disk 11 through a fixed connection to ensure the stability and reliability of the rotational movement. When water drainage and gas collection operations are required, the rotary position control motor 12 can start working according to a preset program or operating instructions, precisely controlling the rotation angle of the rotating disk 11 so that the corresponding water-filled gas collection bottle 6 can be positioned at the gas collection position.

[0089] The rotary positioning motor 12 has high control accuracy and can monitor the position and angle of the rotating disk 11 in real time through built-in sensors and control programs to ensure the accuracy of positioning. At the same time, the rotary positioning motor 12 can also enable the turntable mechanism 1 to complete the positioning and switching operations of multiple water-filled gas collecting bottles 6 in a preset order.

[0090] Thus, by equipping the turntable mechanism 1 with a rotary position control motor 12, the turntable 11 can achieve precise control of its rotation angle. The use of the rotary position control motor 12 can significantly improve the operational efficiency and automation of the drainage and gas collection device. Specifically, it can not only reduce the errors and tediousness of manual operation, but also improve the accuracy and reliability of drainage and gas collection operations. The advantages of the rotary position control motor 12 are particularly evident when multiple drainage and gas collection operations need to be performed continuously, greatly improving work efficiency and production benefits.

[0091] Furthermore, the rotary position control motor 12 is provided with a fixed base to provide stable support for the turntable mechanism 1. The rotary position control motor 12 is also provided with a limit switch to ensure that the rotary disk 11 can automatically stop rotating when it reaches a specified position to avoid over-positioning or collision.

[0092] In one example, Figure 1 As shown, the push rod mechanism 3 includes an electric push rod 31 and a push rod positioning seat 32 arranged at the fixed end of the electric push rod 31. The movable end of the electric push rod 31 is provided with a cylinder 9, and the air intake needle 8 and the water discharge needle 7 are both arranged at the end of the cylinder 9.

[0093] Specifically, the push rod mechanism 3 is mainly responsible for pushing the air inlet needle 8 and the water drain needle 7 into the water-filled gas collecting bottle 6 to perform water drainage and gas collection operations. The push rod mechanism 3 includes key components such as an electric push rod 31, a push rod positioning seat 32, and a cylinder 9.

[0094] The electric push rod 31, serving as the power source for the push rod mechanism 3, possesses powerful thrust and precise control capabilities. Its fixed end is securely mounted on the push rod positioning base 32, ensuring the stability and reliability of the entire push rod mechanism 3. Driven by a motor, the electric push rod 31 can telescope according to control commands, thereby moving the cylinder 9 and its associated air intake needle 8 and drain needle 7 for insertion into or removal from the water-filled gas collecting bottle 6.

[0095] The push rod positioning seat 32 serves to position and support the electric push rod 31. It has sufficient strength and stability to withstand the reverse force generated by the electric push rod 31 during operation. The design of the push rod positioning seat 32 should also take into account the convenience of operation and adjustability, making the electric push rod 31 easy to install and remove and able to be adjusted as needed.

[0096] The barrel 9 is a key component of the movable end of the electric push rod 31, housing an air intake needle 8 and a water drainage needle 7. Both the air intake needle 8 and the water drainage needle 7 are fixedly mounted on the ends of the barrel 9, with one end exposed and the other end located within the barrel 9 and connected to the corresponding air intake mechanism 4 or water drainage mechanism 5. The air intake needle 8 draws gas from the air intake mechanism 4, which includes the desorber 43, while the water drainage needle 7 drains water from the water collection bottle 6 into the water drainage mechanism 5.

[0097] It should be noted that the length of the air intake needle 8 and the water drainage needle 7 exposed outside the cylinder 9 can be specifically set according to the corresponding position relationship between the water-filled gas collecting bottle 6 and the cylinder 9. For example, when the water-filled gas collecting bottle 6 is correspondingly arranged vertically above the cylinder 9, the air intake needle 8 and the water drainage needle 7 are moved vertically upward to be inserted into the water-filled gas collecting bottle 6 for gas collection. At this time, the air intake needle 8 should be longer than the water drainage needle 7. Figure 1 As shown, the needle head of the air inlet needle 8 is higher than the needle head of the water discharge needle 7, so that the water in the water collecting bottle 6 can be automatically discharged when gas is collected.

[0098] During operation, the electric push rod 31 begins to operate, driving the cylinder 9 toward the water-filled gas collection bottle 6, allowing the air intake needle 8 and the water drainage needle 7 to be accurately inserted into the water-filled gas collection bottle 6. At this point, the gas in the desorber 43 enters the bottle through the air intake needle 8, while the water in the water-filled gas collection bottle 6 is discharged into the drainage mechanism 5 by the water drainage needle 7. When the drainage and air intake processes are complete, the electric push rod 31 drives the cylinder 9 back, removing the air intake needle 8 and the water drainage needle 7 from the water-filled gas collection bottle 6, thus concluding the drainage and gas collection operation for the water-filled gas collection bottle 6.

[0099] The push rod mechanism 3 is compact and stable, adaptable to various complex working environments, and ensures smooth drainage and gas collection operations. The push rod mechanism 3, through the coordinated operation of the electric push rod 31, the push rod positioning seat 32, and the cylinder 9, can achieve precise control of the air inlet needle 8 and the drain needle 7, providing strong support for drainage and gas collection operations.

[0100] Further, if Figure 1 As shown, the air intake mechanism 4 includes a desorber 43 and an air intake pipe 41 provided at the air outlet end of the desorber 43 and connected to the air intake needle 8 , and an air intake valve 42 is provided on the air intake pipe 41 .

[0101] Specifically, one end of the air inlet pipe 41 is connected to the gas outlet of the desorber 43, and the other end thereof extends into the interior of the cylinder 9 and is connected to the air inlet needle 8. The air inlet pipe 41 can input the gas discharged from the desorber 43 into the air inlet needle 8, and then input the gas into the water-filled gas collecting bottle 6 through the air inlet needle 8.

[0102] More specifically, the air intake pipe 41 may include an air intake main pipe and an air intake branch pipe. A plurality of air intake branch pipes are provided and each of the air intake branch pipes converges onto the air intake main pipe. Each air intake branch pipe is connected to a corresponding air outlet of the desorber 43, and an air intake valve 42 is provided on each air intake branch pipe.

[0103] It should be noted that the air inlet branch pipes are respectively connected to the air outlet ends arranged at different height positions of the desorber 43 to collect gas at different positions in the desorber 43.

[0104] Furthermore, if Figure 1 As shown, the drainage mechanism 5 includes a drainage pipe 51 connected to the drainage needle 7 , and a drainage valve 52 is provided on the drainage pipe 51 .

[0105] Specifically, one end of the drain pipe 51 is connected to the water tank or water receiving tank, and the other end thereof extends into the interior of the cylinder 9 and is connected to the drain needle 7. The drain pipe 51 can discharge the water in the water collecting bottle 6 to the water tank or water receiving tank, and can be controlled by the drain valve 52.

[0106] like Figure 2 and Figure 3As shown, in one example, the water-filled gas collecting bottle 6 includes an outer cup sleeve 61 with its opening facing upward and an inner cup sleeve 63 sealed at the bottle mouth end. The outer side of the outer cup sleeve 61 is fixedly connected to the mounting hole 13 of the turntable mechanism 1, and the inner cup sleeve 63 is inverted in the outer cup sleeve 61. The outer cup sleeve 61 has an inverted cone structure and can be fitted with inner cup sleeves 63 of different sizes.

[0107] Specifically, the water-filled gas collecting bottle 6, a key component in the drainage gas collecting device, has a design that directly affects the effectiveness of the drainage and gas collecting operation. The water-filled gas collecting bottle 6 adopts a special structural design of multiple cup sleeves, including an outer cup sleeve 61 with an upward opening and an inner cup sleeve 63 with a sealed bottle mouth.

[0108] The outer cup 61 connects the water-collecting and gas-collecting bottle 6 to the turntable mechanism 1. Its outer wall is securely fastened to the mounting hole 13 of the turntable mechanism 1 via a fixed connection, ensuring it will not fall off or wobble during rotation. The outer cup 61 features an inverted conical structure, which aligns with the inner cup 63 and allows for mounting of inner cups 63 of varying sizes to accommodate drainage and gas collection needs of varying capacities and sizes. The top of the outer cup 61 is open for inserting the inverted inner cup 63, while its bottom is sealed and can be penetrated by the air inlet needle 8 and the water discharge needle 7.

[0109] The inner cup 63 is the water-collecting and gas-collecting component of the water-filled and gas-collecting bottle 6. It is filled with water and has a sealed opening. The opening of the inner cup 63 matches the structure of the outer cup 61. Different-sized water-filled and gas-collecting bottles 6 have the same outer cup 61, while the inner cup 63 has different sizes. Furthermore, the depth to which the inner cup 63 can be inserted inverted inside the outer cup 61 varies. Due to the inverted conical structure of the outer cup 61, the inner cup 63 can be stably placed within the outer cup 61.

[0110] During the drainage and gas collection operation, the inner cup 63 of different sizes can be replaced according to the drainage and gas collection needs, which is convenient to operate. In addition, the air inlet needle 8 and the water discharge needle 7 of the push rod mechanism 3 can sequentially pierce the bottom sealing layer of the outer cup 61 and the bottle mouth sealing layer of the inner cup 63, and drain and collect gas in the inner cup 63.

[0111] It should be noted that the opening of the outer cup sleeve 61 is upward based on the following Figure 2 The water-filled gas collecting bottle 6 shown is arranged vertically above the cylinder 9. The opening setting of the outer cup sleeve 61 and the positional relationship of the inner cup sleeve 63 can be adaptively adjusted based on the corresponding positional relationship between the water-filled gas collecting bottle 6 and the push rod mechanism 3.

[0112] In one example, Figure 3 As shown, an intermediate cup sleeve 62 is provided between the outer cup sleeve 61 and the inner cup sleeve 63 . The structure of the intermediate cup sleeve 62 is the same as that of the outer cup sleeve 61 , and the cup wall of the intermediate cup sleeve 62 is made of a flexible material, which can form a flexible contact with the bottle mouth end of the inner cup sleeve 63 .

[0113] Specifically, since the outer cup sleeve 61 needs to be fixedly connected to the mounting hole 13 of the turntable mechanism 1, the material of the outer cup sleeve 61 is generally a hard material. When the inner cup sleeve 63 is inverted, both the outer cup sleeve 61 and the inner cup sleeve 63 may be deformed due to the downward pressure of the inner cup sleeve 63, affecting their respective functions. Therefore, a flexible intermediate cup sleeve 62 is provided between the outer cup sleeve 61 and the inner cup sleeve 63, so that the bottle mouth end of the inner cup sleeve 63 forms a flexible contact with the intermediate cup sleeve 62, which has a strong cushioning effect. This can avoid direct contact between the outer cup sleeve 61 and the inner cup sleeve 63, prevent deformation of the outer cup sleeve 61 and the inner cup sleeve 63, and improve the reliability and durability of the entire device.

[0114] The structure of the middle cup sleeve 62 is the same as that of the outer cup sleeve 61, presenting a similar inverted cone structure. This consistency ensures that the middle cup sleeve 62 can replace the outer cup sleeve 61 to set the inner cup sleeve 63 of different sizes.

[0115] Furthermore, the middle cup sleeve 62 matches the inner cup sleeve 63 in size, and the middle cup sleeve 62 is detachably fixedly connected to the outer cup sleeve 61 .

[0116] Specifically, since the size of the outer cup sleeve 61 matches the size of the mounting hole 13, the inner cup sleeve 63 may be too small and may wobble when inverted inside the outer cup sleeve 61. Therefore, the inner cup sleeve 63 can be placed inside the middle cup sleeve 62 of matching size to further ensure the stable placement of the inner cup sleeve 63. The middle cup sleeve 62 can be removably fixed by matching the mounting holes set on the bottom of the outer cup sleeve 61.

[0117] Furthermore, the bottle mouth end of the inner cup sleeve 63 is sealed with a rubber stopper 64, and the bottom sealing layers of the middle cup sleeve 62 and the outer cup sleeve 61 can be made of rubber or silicone.

[0118] This not only enables the middle cup sleeve 62 to form a flexible contact with the bottle mouth end of the inner cup sleeve 63, but also when performing drainage and air collection operations, the air intake needle 8 and the drainage needle 7 of the push rod mechanism 3 can effectively pass through the bottom of the outer cup sleeve 61, the bottom of the middle cup sleeve 62 and the bottle mouth end of the inner cup sleeve 63 in turn, and then enter the inner cup sleeve 63 for drainage and air collection, ensuring the smooth progress of the drainage and air collection process.

[0119] Furthermore, the outer wall of the outer cup sleeve 61 is provided with an external thread matching the internal thread of the mounting hole 13. In this way, the outer cup sleeve 61 can be fixed in the mounting hole 13 of the turntable mechanism 1 by a threaded connection.

[0120] In one example, Figure 2As shown, the drainage and gas collecting device further includes a pressing plate mechanism 2, which includes a pressing plate 22 and a push-pull rod assembly. The pressing plate 22 is connected to the moving end of the push-pull rod assembly, and the extrusion end of the pressing plate 22 corresponds to the gas collecting position;

[0121] The push-pull rod assembly can drive the pressure plate 22 to move relative to the push rod mechanism 3, so that its extrusion end can press the water-filled gas collecting bottle 6 in the gas collecting position toward the push rod mechanism 3.

[0122] Specifically, because the water-filled gas collection bottle 6 employs a multi-cup assembly structure, when the air intake needle 8 and the water drainage needle 7 are inserted into the water-filled gas collection bottle 6, the thrust of the electric push rod 31 causes the inner cup 63 located inside to move upward, preventing the air intake needle 8 and the water drainage needle 7 from being inserted into the inner cup 63 to drain and collect water. The drainage and gas collection device is equipped with a pressure plate mechanism 2 as an auxiliary mechanism to ensure that the air intake needle 8 and the water drainage needle 7 can be smoothly inserted into the inner cup 63, thereby improving the reliability of the drainage and gas collection operation.

[0123] The pressure plate mechanism 2 mainly consists of two parts: a pressure plate 22 and a push-pull rod assembly. Among them, the pressure plate 22 is the core component of the pressure plate mechanism 2. Its extrusion end corresponds to the gas collecting position and can accurately act on the water-filled gas collecting bottle 6 to effectively compress it.

[0124] The push-pull rod assembly is responsible for driving the pressure plate 22 to move, and includes a movable end and a fixed end. The movable end is tightly connected to the pressure plate 22 and can drive the pressure plate 22 to move back and forth. When drainage and gas collection operations are required, the push-pull rod assembly can work according to the control instructions to drive the pressure plate 22 to move toward the push rod mechanism 3. As the pressure plate 22 moves, its extrusion end will gradually approach and press the water-filled gas collecting bottle 6 in the gas collecting position. This pressing effect can not only effectively prevent the water-filled gas collecting bottle 6 from shaking or displacement during the drainage and gas collection process, but also ensure that the air inlet needle 8 and the drainage needle 7 can be smoothly inserted into the water-filled gas collecting bottle 6, thereby improving the accuracy and efficiency of the drainage and gas collection operations.

[0125] In specific applications, such as Figure 2 As shown, the pressure plate mechanism 2 works in conjunction with the turntable mechanism 1 and the push rod mechanism 3 to complete the drainage and gas collection operation. Once the turntable mechanism 1 positions the corresponding water-filled gas collection bottle 6 at the gas collection position, the push rod mechanism 3 begins to operate, driving the air intake needle 8 and the water discharge needle 7 into the water-filled gas collection bottle 6. Simultaneously, the pressure plate mechanism 2, via the push-pull rod assembly, drives the pressure plate 22 to press the water-filled gas collection bottle 6 tightly, ensuring smooth insertion of the air intake needle 8 and the water discharge needle 7. This coordinated operation ensures smooth drainage and gas collection operations, improving the stability and reliability of the entire device.

[0126] Further, if Figure 2As shown, the extrusion end of the pressure plate 22 is provided with an adjustment nut 23, and the adjustment nut 23 corresponds to the gas collection position. The adjustment nut 23 is threadedly mounted in the threaded connection hole on the pressure plate 22 and is arranged perpendicular to the pressure plate 22. It can be manually adjusted to meet the compression requirements of different specifications of water-filled gas collection bottles 6 by telescoping according to the position of the gas collection bottle.

[0127] In one example, Figure 2 As shown, a locator 24 is provided on the fixed end of the push-pull rod assembly. The detection light emitted by the locator 24 passes through the bottle mouth of the water-filled gas collecting bottle 6 in the gas collecting position. The locator 24 can determine whether the air intake needle 8 and the water discharge needle 7 are inserted into the water-filled gas collecting bottle 6 by detecting whether the light is blocked.

[0128] Specifically, to enhance the safety and accuracy of the drainage and gas collection operation, a positioner 24 is specially provided on the fixed end of the push-pull rod assembly. The positioner 24 uses the optical detection principle to determine whether the air intake needle 8 and the drainage needle 7 are correctly inserted into the water-filled gas collection bottle 6 by detecting the obstruction of light.

[0129] Locator 24 is meticulously mounted on the fixed end of the push-pull rod assembly, ensuring its stable position and resistance to external interference. The detection light emitted by locator 24 has a specific wavelength and intensity, allowing it to clearly pass through the mouth of the water-filled gas collection bottle 6 in the gas collection position. This utilizes the transparent nature of the water-filled gas collection bottle 6 to allow the detection light to pass through the bottle mouth unimpeded, allowing for precise detection of the condition within the bottle.

[0130] Before the drainage and gas collection operation begins, the locator 24 emits a detection light. When the turntable mechanism 1 positions the water-filled gas collection bottle 6 at the gas collection position and the push rod mechanism 3 begins to drive the air intake needle 8 and the water discharge needle 7 into the water-filled gas collection bottle 6, the locator 24 continuously monitors the state of the detection light. If the air intake needle 8 and the water discharge needle 7 are correctly inserted into the water-filled gas collection bottle 6, the detection light will be blocked or reflected. The locator 24 captures this change and determines that the insertion is successful. If the air intake needle 8 and the water discharge needle 7 are not correctly inserted or are inserted into the wrong position, the locator 24 will determine that the insertion has failed and will not be able to open the air intake valve 42 and the water discharge valve 52 to perform the drainage and gas collection operation.

[0131] The positioner 24 accurately monitors the insertion status of the air intake needle 8 and the drainage needle 7 in real time, providing a crucial safety measure for drainage and gas collection operations. If the positioner 24 detects an insertion failure during insertion of the air intake needle 8 or drainage needle 7, the device immediately stops and sounds an alarm, prompting the operator to inspect and adjust the device. This not only avoids the risk of device damage or experimental failure caused by improper insertion but also improves the efficiency and reliability of drainage and gas collection operations.

[0132] Furthermore, the use of the locator 24 simplifies the operational process of drainage and gas collection operations. Operators no longer need to manually check the insertion status of each water-filled gas collection bottle 6; they can simply observe the indication of the locator 24 to understand the operational status. This not only reduces the operational burden but also the possibility of human error.

[0133] Further, if Figure 2 As shown, the push-pull rod assembly includes a push-pull rod 21 and a push-pull rod seat 25. The push-pull rod 21 is arranged on the push-pull rod seat 25. The push-pull rod 21 plays a telescopic driving function, and the push-pull rod seat 25 plays a fixed support function. The positioner 24 can be fixedly arranged on the push-pull rod seat 25.

[0134] Example 4

[0135] The drainage and gas collection system of the present invention includes the above-mentioned drainage and gas collection device and a software control center (not shown in the drawings). The software control center is electrically connected to the various actuators of the drainage and gas collection device, and the software control center can control the drainage and gas collection device to perform automatic drainage and gas collection operations.

[0136] Specifically, the drainage and gas collection system, as an integrated device, is designed to achieve automated and intelligent operation of drainage and gas collection. It consists of two core components: a drainage and gas collection device and a software control center. The controlled ends of the drainage and gas collection device's push rod mechanism 3, turntable mechanism 1, pressure plate mechanism 2, air intake mechanism 4, and drainage mechanism 5 are each connected to the software control center.

[0137] The drainage and gas collection device serves as the execution end of the system and is responsible for the specific drainage and gas collection operations. It integrates multiple key components such as a turntable mechanism 1, a push rod mechanism 3, a water-filled gas collection bottle 6, and a pressure plate mechanism 2. These components work together to complete the task of drainage and gas collection. The turntable mechanism 1 is responsible for rotating and positioning the corresponding water-filled gas collection bottle 6 to the gas collection position, while the push rod mechanism 3 drives the air inlet needle 8 and the drainage needle 7 to insert into the corresponding water-filled gas collection bottle 6 for drainage and gas collection operations. The water-filled gas collection bottle 6 also adopts a special multi-cup combination structural design, which can conveniently meet different drainage and gas collection needs, while the pressure plate mechanism 2 ensures the stability of the water-filled gas collection bottle 6 during operation.

[0138] The software control center, serving as the system's central control hub, is electrically connected to each actuator of the drainage and gas collection device, enabling precise control of the entire drainage and gas collection process. Utilizing advanced control algorithms and logic, the software control center can control the drainage and gas collection device to automatically perform drainage and gas collection operations according to preset programs or real-time instructions. This not only controls the rotation of the turntable mechanism 1 and the extension and retraction of the push rod mechanism 3, but also monitors the status of the water-filled gas collection bottle 6 and feedback signals from the positioner 24, ensuring the accuracy and reliability of the drainage and gas collection operation.

[0139] During the drainage and gas collection process, the software control center can set different drainage and gas collection parameters and modes, such as drainage speed and gas collection time, based on experimental or production needs. The software control center also monitors the working status of the drainage and gas collection device in real time, such as the water level and air pressure in the water-filled gas collection bottle 6. If any abnormality is detected, an alarm will be immediately issued and appropriate measures will be taken to ensure the safe and stable operation of the entire system.

[0140] In addition, the software control center also has data recording and analysis functions, which can record the data of each drainage and gas collection operation, including operation time, drainage volume, gas collection volume, etc., providing an important reference basis for subsequent experimental analysis and production optimization.

[0141] Example 5

[0142] The drainage gas collection method of the present invention uses the above drainage gas collection system to collect gas, and the specific steps include at least:

[0143] S1, in response to the desorption process of the desorber 43 reaching a specified time, controlling the turntable mechanism 1 to rotate so that the corresponding water-filled gas collecting bottle 6 is in the gas collecting position;

[0144] S2, control the push rod mechanism 3 so that the air inlet needle 8 and the water drain needle 7 are pushed toward the water-filled gas collecting bottle 6 and inserted into the water-filled gas collecting bottle 6, and start water drainage and gas collection. After a predetermined gas collection time, control the push rod mechanism 3 to pull out the air inlet needle 8 and the water drain needle 7 from the water-filled gas collecting bottle 6;

[0145] S3. In response to the desorption process of the desorber 43 reaching the next designated time, the turntable mechanism 1 is controlled to rotate so that another corresponding water-filled gas collecting bottle 6 is in the gas collecting position, and the operation of draining water and collecting gas is repeated.

[0146] Specifically, the drainage gas collection method of the present invention uses the above-mentioned drainage gas collection system to perform drainage gas collection. This method is based on the desorption process of the desorber 43 and realizes automated and continuous drainage gas collection operations by controlling different mechanisms of the drainage gas collection device.

[0147] First, when the desorption process of the desorber 43 reaches a specified time (for example, 5 minutes after the desorption begins), the software control center receives a corresponding signal and immediately controls the rotation of the turntable mechanism 1. As the turntable mechanism 1 rotates, the corresponding water-filled gas collection bottle 6 is accurately positioned at the gas collection position, ready for water drainage and gas collection operations.

[0148] Next, the software control center controls the push rod mechanism 3. Upon receiving the command, the push rod mechanism 3 drives the air intake needle 8 and the water drainage needle 7 toward the water-filled gas collection bottle 6. Once the air intake needle 8 and the water drainage needle 7 are in place, the water drainage and gas collection operation officially begins. The water drainage needle 7 begins to drain the water from the water-filled gas collection bottle 6, making room for gas collection. Simultaneously, the air intake needle 8 begins to collect gas desorbed from the desorber 43.

[0149] The drainage and gas collection process continues until the predetermined gas collection time (e.g., 20 minutes) has expired. The software control center precisely controls the gas collection time according to a pre-set program to ensure sufficient gas samples are collected. When the gas collection time has expired, the software control center again controls the push rod mechanism 3 to remove the air inlet needle 8 and the drainage needle 7 from the water-filled gas collection bottle 6. At this point, a complete drainage and gas collection process is complete.

[0150] Then, as the desorption process in the desorber 43 continues, when the next designated time is reached (for example, 35 minutes after the desorption begins), the software control center controls the rotation of the turntable mechanism 1 again, and the turntable mechanism 1 rotates the next water-filled gas collection bottle 6 to the gas collection position, preparing for the next round of drainage and gas collection. In this way, the entire drainage and gas collection system can realize automated and continuous drainage and gas collection operations, improving gas collection efficiency and accuracy.

[0151] Furthermore, throughout the drainage and gas collection process, the software control center monitors the operating status of each actuator and the status of the water-filled gas collection bottle 6. If any abnormality occurs, such as damage to the water-filled gas collection bottle 6 or a blockage in the air inlet needle 8 or the drainage needle 7, the software control center immediately issues an alarm and takes appropriate action to ensure the safe and stable operation of the drainage and gas collection system.

[0152] It should be noted that when the water-filled gas collecting bottle 6 adopts a special structural form of a multi-cup sleeve combination, the drainage and gas collection method also controls the pressure plate mechanism 2 through the software control center to press the water-filled gas collecting bottle 6 for the corresponding drainage and gas collection to ensure that the drainage and gas collection operation can operate normally.

[0153] In summary, the drainage gas collection method can realize automated and continuous drainage gas production operations by controlling the different mechanisms of the drainage gas collection system through the software control center. In this way, the desorber 43 releases gas at different times, and desorbed gas samples of the rock at different times can be collected to carry out gas property analysis to explore the shale gas storage mechanism.

[0154] Example 6

[0155] This embodiment takes the corresponding relationship in which the water-filled gas collecting bottle is arranged vertically above the push rod mechanism as an example to explain in detail the drainage gas collecting system and method of the present invention.

[0156] like Figure 1 As shown, the drainage and gas collection system of this embodiment includes a water-filled gas collection bottle 6, a turntable mechanism 1, a push rod mechanism 3, an air intake needle 8, a drainage needle 7, an air intake mechanism 4, and a drainage mechanism 5.

[0157] There are multiple water-filled gas collecting bottles 6 , all of which are filled with brine and are used to collect the gas discharged from the desorber 43 by drainage.

[0158] The water-filled gas collecting bottles 6 are positioned and arranged on the turntable mechanism 1 at circumferential intervals and can rotate along a horizontal plane driven by the turntable mechanism 1 .

[0159] like Figure 1 As shown, the turntable mechanism 1 includes a rotating disk 11 and a rotary positioning motor 12 arranged below the rotating disk 11. The rotary positioning motor 12 is used to drive the rotating disk 11 to rotate. The rotating disk 11 is fixed on the rotating shaft of the rotary positioning motor 12. The rotary positioning motor 12 can rotate to a specified position under the command of the software control center.

[0160] The rotating disk 11 is used to place the water-filled gas collecting bottle 6. A plurality of mounting holes 13 are opened on the rotating disk 11 in the circumferential direction. The mounting holes 13 are used to place the water-filled gas collecting bottle 6. The mounting holes 13 are through holes with internal threads.

[0161] Taking into account the differences in specifications of the water-filled gas collecting bottle 6 , the water-filled gas collecting bottle 6 in this embodiment adopts a multi-cup sleeve combination structure and is positioned in the mounting hole 13 .

[0162] Specifically, if Figure 3 As shown, the water-filled gas collecting bottle 6 includes an outer cup 61 with an upward opening and an intermediate cup 62. The intermediate cup 62 is mounted inside the outer cup 61. The inner cup 63 with a downward opening is mounted inside the intermediate cup 62. The open end of the inner cup 63 is sealed by a rubber stopper 64. The outer cup 61 has an external thread on its outer wall, which mates with the internal thread in the mounting hole 13 on the rotating disk 11, thereby securing the outer cup 61.

[0163] In this embodiment, the outer cup sleeve 61, the middle cup sleeve 62 and the inner cup sleeve 63 are all set to an inverted cone shape. The middle cup sleeve 62 is fitted with the inner cup sleeve 63. The air intake needle 8 and the drainage needle 7 can pass through the bottom of the outer cup sleeve 61 and the middle cup sleeve 62 and the rubber plug 64 on the inner cup sleeve 63, and are connected to the interior of the inner cup sleeve 63.

[0164] like Figure 1 and Figure 2As shown, a push rod mechanism 3 is provided below the turntable mechanism 1. The push rod mechanism 3 utilizes an electric push rod 31, which inserts and removes a hollow needle through vertical movement. The two hollow needles at the movable end of the electric push rod 31 are an air intake needle 8 and a water drainage needle 7. During vertical movement of the push rod mechanism 3, the air intake needle 8 and the water drainage needle 7 are inserted into the water-filled gas collecting bottle 6. The air intake needle 8 is connected to the air intake mechanism 4, which inputs gas into the water-filled gas collecting bottle 6, and the water drainage needle 7 is connected to the water drainage mechanism 5.

[0165] The push rod mechanism 3 in this embodiment includes an electric push rod 31 and a push rod positioning seat 32 provided at the bottom end of the electric push rod 31. A cylinder 9 is positioned above the movable end of the push rod mechanism 3, and an air intake needle 8 and a water discharge needle 7 are respectively provided on the cylinder 9. The air intake mechanism 4 extends into the cylinder 9 and is connected to the air intake needle 8. The water discharge mechanism 5 extends into the cylinder 9 and is connected to the water discharge needle 7.

[0166] The air intake mechanism 4 in this embodiment includes a desorber 43 and an air intake pipe 41 disposed at the outlet of the desorber 43 and connected to the air intake needle 8. The air intake pipe 41 is provided with an air intake valve 42. Specifically, the air intake pipe 41 extends into the interior of the cylinder 9 and is configured to input the gas discharged from the desorber 43 into the air intake needle 8, which then inputs the gas into the interior of the inner cup 63 through the air intake needle 8.

[0167] Furthermore, the air intake pipe 41 includes an air intake main pipe and an air intake branch pipe. There are multiple air intake branch pipes that converge into the air intake main pipe respectively. Each air intake branch pipe is connected to the air outlet end of the desorber 43 respectively. An air intake valve 42 is provided on each air intake branch pipe.

[0168] The air inlet branch pipes are respectively connected to different height positions of the desorber 43 and are used to collect gas at different positions in the desorber 43.

[0169] The drainage mechanism 5 in this embodiment includes a drainage pipe 51 connected to the drainage needle 7, and a drainage valve 52 is provided on the drainage pipe 51. Specifically, the drainage pipe 51 extends into the interior of the cylinder 9, and the drainage pipe 51 is capable of draining the saline in the inner cup sleeve 63.

[0170] Because the water-filled gas collecting bottle 6 of this embodiment utilizes a multi-cup sleeve structure, when the air inlet needle 8 and the water drain needle 7 are inserted into the water-filled gas collecting bottle 6, the inner cup sleeve 63 located therein may move upward, preventing the air inlet needle 8 and the water drain needle 7 from being inserted into the inner cup sleeve 63. To this end, this embodiment further includes a pressure plate mechanism 2 above the turntable mechanism 1. The pressure plate mechanism 2 is used to apply pressure and secure the water-filled gas collecting bottle 6, facilitating the push rod mechanism 3 to insert the air inlet needle 8 and the water drain needle 7 into the water-filled gas collecting bottle 6. The pressure plate mechanism 2 is vertically retractable and can achieve compression and release of the water-filled gas collecting bottle 6. The extrusion end of the pressure plate mechanism 2 is arranged in the same vertical direction as the push rod mechanism 3, with the two corresponding to each other.

[0171] like Figure 2 As shown, the pressing plate mechanism 2 of this embodiment includes a pressing plate 22, an adjusting nut 23 and a push-pull rod assembly.

[0172] The pressing plate 22 is located above the turntable mechanism 1 and is arranged horizontally. A threaded connection hole is provided on the extrusion end of the pressing plate 22 .

[0173] The adjusting nut 23 is threadedly mounted in the threaded connection hole on the pressing plate 22 and is vertically arranged. It can be adjusted according to the height of the water-filled gas collecting bottle 6 to meet the fixing requirements of water-filled gas collecting bottles of different specifications 6. The adjusting nut 23 is arranged correspondingly to the push rod mechanism 3 up and down.

[0174] A push-pull rod assembly for driving the pressing plate 22 and the adjusting nut 23 to move up and down is provided at the bottom end of the pressing plate 22 . The push-pull rod assembly includes a push-pull rod 21 and a push-pull rod seat 25 on which the push-pull rod 21 is provided.

[0175] In order to better detect the rising action of the air intake needle 8 and the water drainage needle 7, and to determine whether the air intake needle 8 and the water drainage needle 7 are inserted into the water-filled gas collecting bottle 6, this embodiment is provided with a locator 24 on the push-pull rod seat 25, and the position of the air intake needle 8 and the water drainage needle 7 is detected by the locator 24, that is, when the air intake needle 8 and the water drainage needle 7 rise, the air intake needle 8 and the water drainage needle 7 block the detection light emitted by the locator 24, and then determine that the air intake needle 8 and the water drainage needle 7 have performed the rising action.

[0176] The drainage and gas collection system of this embodiment also includes a software control center, which controls the desorber 43 in the gas intake mechanism 4 to release gas at different times, thereby collecting desorbed gas samples from the rock at different times for gas property analysis and exploration of shale gas occurrence mechanisms. The controlled terminals of the gas intake mechanism 4, push rod mechanism 3, drainage mechanism 5, rotary disc mechanism 1, and pressure plate mechanism 2 are each connected to the output terminal of the software control center.

[0177] The drainage gas collection method of this embodiment uses the above drainage gas collection system to collect gas, and the specific steps include at least:

[0178] (1) During the automated drainage and gas collection process, a control program is pre-set in the software control center to correspond to the pipeline of the desorber 43 requiring gas sampling at a specific time.

[0179] (2) At the designated moment, the software control center controls the rotary position control motor 12 to drive the rotating disk 11 to rotate. The rotating disk 11 will rotate the designated water-filled gas collecting bottle 6 to the gas collecting position directly below the pressure plate 22, and the software control center controls the pressure plate mechanism 2 to move downward to press the water-filled gas collecting bottle 6.

[0180] (3) When the software control center determines that there is enough gas in the desorber 43 pipeline, the electric push rod 31 drives the air intake needle 8 and the water discharge needle 7 to move upward, and the air intake needle 8 and the water discharge needle 7 penetrate into the water-filled gas collecting bottle 6, and then opens the corresponding air intake valve 42 on the air intake pipe 41, and at the same time opens the water discharge valve 52 on the water discharge pipe 51, and starts to drain water and collect gas.

[0181] (4) When gas collection is complete, the electric push rod 31 drives the air inlet needle 8 and the water outlet needle 7 to remove the rubber stopper 64 of the water-filled gas collecting bottle 6. The push-pull rod assembly drives the pressure plate 22 and the adjusting nut 23 to move upward, loosening the water-filled gas collecting bottle 6. The rotating disk 11 returns to its initial position and waits for the next gas collection.

[0182] In summary, the beneficial effects of the present invention include:

[0183] The present invention adopts a turntable mechanism 1 to drive the water-filled gas collecting bottle 6 to rotate to a specified position, and the push rod mechanism 3 drives the air inlet needle 8 and the water discharge needle 7 to be inserted into the water-filled gas collecting bottle 6 for gas collection. The water discharge and gas collection operation can be completed automatically, and the water-filled gas collecting bottle 6 can be designated as needed. Compared with the traditional manual water discharge and gas collection method, it greatly saves time and manpower, has high gas collection efficiency, and can collect desorbed gas samples of rocks at different times to conduct gas property analysis to explore the shale gas occurrence mechanism.

[0184] The water-filled gas collecting bottle 6 of the present invention adopts a multi-cup sleeve combination structure, which can realize gas collecting operations on inner cup sleeves 63 of various specifications and models, making the present invention widely applicable.

[0185] Because the water-filled gas collecting bottle 6 of the present invention adopts a multi-cup sleeve combination structure, the present invention also provides a pressure plate mechanism 2 above the turntable mechanism 1. The pressure plate mechanism 2 is used to pressurize and fix the water-filled gas collecting bottle 6 so that the push rod mechanism 3 can insert the air intake needle 8 and the water discharge needle 7 into the water-filled gas collecting bottle 6. The pressure plate mechanism 2 can be retracted and retracted in the vertical direction to realize the tightening and loosening of the water-filled gas collecting bottle 6.

[0186] While the present invention has been described with reference to preferred embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner, provided no structural conflicts exist. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A drainage and gas collecting device, characterized in that: The drainage and gas collecting device includes a turntable mechanism and a push rod mechanism; The turntable mechanism is provided with a water-filled gas collecting bottle, which is filled with water. The turntable mechanism can position the corresponding water-filled gas collecting bottle by rotating so that it corresponds to the gas collecting position of the push rod mechanism. The push rod mechanism is provided with an air intake needle for taking in air from the desorber and a water drainage needle for draining water to the drain pipe. The push rod mechanism can push the air intake needle and the water drainage needle to be inserted into the corresponding water-filled gas collecting bottle to perform water drainage and gas collection operations.

2. The drainage gas collecting device according to claim 1, characterized in that: The turntable mechanism comprises a rotating disk, and the rotating disk is provided with a plurality of mounting holes at intervals along its own rotation direction, and each of the mounting holes is correspondingly provided with one of the water-filled and gas-collecting bottles.

3. The drainage gas collecting device according to claim 2, characterized in that: The turntable mechanism further includes a rotation position control motor, a rotation shaft of the rotation position control motor is fixedly connected to the rotating disk, and the rotation position control motor can control the rotation angle of the rotating disk.

4. The drainage gas collecting device according to claim 1, characterized in that: The push rod mechanism includes an electric push rod and a push rod positioning seat arranged at the fixed end of the electric push rod. The movable end of the electric push rod is provided with a cylinder. The air intake needle and the water drainage needle are both arranged at the end of the cylinder.

5. The drainage gas collecting device according to claim 1, characterized in that: The water-filled and gas-collecting bottle includes an outer cup sleeve with an opening facing upward and an inner cup sleeve sealed at the bottle mouth end. The outer side of the outer cup sleeve is fixedly connected to the mounting hole of the turntable mechanism, and the inner cup sleeve is inverted inside the outer cup sleeve. The outer cup sleeve has an inverted cone structure and can accommodate inner cup sleeves of different sizes.

6. The drainage gas collecting device according to claim 5, characterized in that: An intermediate cup sleeve is provided between the outer cup sleeve and the inner cup sleeve. The structure of the intermediate cup sleeve is the same as that of the outer cup sleeve, and the cup wall of the intermediate cup sleeve is made of a flexible material and can form a flexible contact with the bottle mouth end of the inner cup sleeve.

7. The drainage gas collecting device according to claim 1, characterized in that: The drainage and gas collecting device further comprises a pressing plate mechanism, which comprises a pressing plate and a push-pull rod assembly, wherein the pressing plate is connected to the movable end of the push-pull rod assembly, and the extrusion end of the pressing plate corresponds to the gas collecting position; The push-pull rod assembly can drive the pressure plate to move relative to the push rod mechanism, so that its extrusion end can press the water-filled gas collecting bottle in the gas collecting position toward the push rod mechanism.

8. The drainage gas collecting device according to claim 7, characterized in that: A locator is provided on the fixed end of the push-pull rod assembly. The detection light emitted by the locator passes through the bottle mouth of the water-filled gas collecting bottle at the gas collecting position. The locator can determine whether the air inlet needle and the water discharge needle are inserted into the water-filled gas collecting bottle by whether the detection light is blocked.

9. A drainage and gas collection system, characterized in that: The drainage and gas collection system includes a drainage and gas collection device as described in any one of claims 1 to 8 and a software control center, wherein the software control center is electrically connected to each actuator of the drainage and gas collection device, and the software control center can control the drainage and gas collection device to perform automatic drainage and gas collection operations.

10. A drainage and gas collection method, characterized in that: The drainage gas collection method uses the drainage gas collection system according to claim 9 to collect gas, and the specific steps include at least: In response to the desorption process of the desorber reaching a specified time, the turntable mechanism is controlled to rotate so that the corresponding water-filled gas collecting bottle is in the gas collecting position; Controlling the push rod mechanism to push the air intake needle and the water drainage needle toward the water-filled gas collecting bottle and insert them into the water-filled gas collecting bottle to start water drainage and gas collection; and controlling the push rod mechanism to pull out the air intake needle and the water drainage needle from the water-filled gas collecting bottle after a predetermined gas collection time; In response to the desorption process of the desorber reaching the next designated time, the turntable mechanism is controlled to rotate so that another corresponding water-filled gas collecting bottle is in the gas collecting position, and the operation of draining water and collecting gas is repeated.

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