A device and method for collecting gaseous volatiles in crustal fluids

Abstract

The present invention relates to a device for collecting gaseous volatile components in crustal fluids, which comprises a crustal fluid aggregation mechanism, a flow rate adjustment device, a gas-liquid two-phase separation mechanism, a volatile component collection device and a control circuit. The crustal fluid aggregation mechanism is connected to the flow rate adjustment device through a gas guide pipe, the flow rate adjustment device is connected to the gas-liquid two-phase separation mechanism through a diversion pipe, the gas-liquid two-phase separation mechanism is connected to the volatile component collection device through a diversion pipe, and both the flow rate adjustment device and the volatile component collection device are electrically connected to the control circuit. The crustal fluid aggregation mechanism includes support columns, guiding arms, water collection tanks, mud-water separation mechanisms, control valves, liquid level gauges and temperature sensors. On the one hand, the present invention effectively prevents solid pollutants from contaminating the equipment during the sampling process and improves the efficiency of the operation of collecting volatile components in crustal fluids; on the other hand, it eliminates the pollution of the collected samples by air, greatly improves the quality of the sampled volatile component samples, and fundamentally improves the accuracy of subsequent detection and analysis operations.

Description

Technical Field

[0001] The present invention relates to technical equipment for detecting gas components and flow rates, and particularly to a device for collecting gaseous volatiles in crustal fluids and a method for using the same. Background Art

[0002] Currently, when sampling the gases contained in formation waters such as hot springs and hydrothermal fluids, on the one hand, the environmental differences at the leakage points of formation waters such as hot springs and hydrothermal fluids are huge and relatively harsh. At the same time, the leakage points of hot springs and hydrothermal fluids often have the problem of too high temperature. Therefore, the sampling difficulty is relatively large and it is easy to pose a safety threat to sampling personnel. On the other hand, the gas components at the leakage points of hot springs and hydrothermal fluids are complex, the gas flow stability is poor, it is difficult to continuously and stably carry out gas collection operations, and the collected gas samples are easily polluted by external air environment. At the same time, due to the relatively high temperature of hot springs and hydrothermal fluids, a large amount of water vapor is contained in the collected gas samples, resulting in poor quality of the gas samples and greatly affecting the detection accuracy during subsequent analysis of the gas samples due to pollution, making it difficult to effectively meet the usage requirements.

[0003] Therefore, in view of the deficiencies in current actual work, it is necessary to develop a new gas collection device and method for detecting gases in formation waters to meet the needs of actual work. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for collecting gaseous volatiles in crustal fluids and a method for using the same. The invention has a high degree of system integration and modularization. On the one hand, it can effectively meet the need for efficient and flexible sampling of formation waters in various complex environments. At the same time, during the sampling process, it can effectively prevent solid pollutants from polluting the equipment, and can also improve the efficiency of gas-water separation and collection operations. On the other hand, it can effectively improve the working efficiency and accuracy of gas collection operations in formation waters, overcome the pollution of formation water gases by external air, and can also effectively eliminate the pollution of the collected gas samples by water vapor in the formation water, thereby greatly improving the quality of the sampled gas samples and the accuracy of detection and analysis operations.

[0005] To achieve the above object, the present invention provides a device for collecting gaseous volatiles in crustal fluids and a method for using the same:

[0006] A device for collecting gaseous volatiles in crustal fluids, comprising a crustal fluid aggregation mechanism, a flow rate regulating device, a gas-liquid two-phase separation mechanism, a volatile collection device and a control circuit. The crustal fluid aggregation mechanism is connected to the flow rate regulating device through a gas guide pipe. The flow rate regulating device is connected to the gas-liquid two-phase separation mechanism through a diversion pipe. The gas-liquid two-phase separation mechanism is connected to the volatile collection device through a gas guide pipe. Both the flow rate regulating device and the volatile collection device are electrically connected to the control circuit. The crustal fluid aggregation mechanism includes support columns, guiding arms, water collection tanks, mud-water separation mechanisms, control valves, liquid level gauges and temperature sensors. The water collection tank is a conical trough-shaped structure, and its outer side surface is hinged to the front end surface of the guiding arm through a hinge. The lower end surface of the water collection tank is parallel to the horizontal plane. The lower end surface of the guiding arm is hinged to the upper end surfaces of at least one support column. The axes of the support columns are perpendicular to the horizontal plane, and their lower end surfaces are connected to the ground surface. An exhaust port coaxial with it is provided at the top of the water collection tank. At the same time, the exhaust port is connected to the flow rate regulating device through a diversion pipe, and the exhaust port and the diversion pipe are connected through a control valve. The mud-water separation mechanism is embedded in the water collection tank and is coaxial with the water collection tank. The mud-water separation mechanism divides the water collection tank from top to bottom into a gasification chamber and a purification chamber, and the mud-water separation mechanism is located in the purification chamber. The gasification chamber and the purification chamber are connected through the mud-water separation mechanism, and the lower end surface of the mud-water separation mechanism is at least 10 mm above the lower end surface of the water collection tank. The liquid level gauge is connected to the outer side surface of the water collection tank. There are at least two temperature sensors, and at least one temperature sensor is provided in both the gasification chamber and the purification chamber. The control valve, the liquid level gauge and the temperature sensors are all electrically connected to the control circuit.

[0007] Further, the mud-water separation mechanism includes an elastic sealing ring, an assembly shell, a filter net, a filter cotton layer, negative ion balls, a support plate and a filter core. The assembly shell is a cylindrical hollow columnar structure. The outer side surface of the assembly shell is connected to the inner side surface of the water collection tank through a connecting mechanism, and the assembly shell is coaxial with the water collection tank. The elastic sealing ring is coated outside the assembly shell and is located at the contact surface between the water collection tank and the assembly shell. The support plate is embedded in the upper end surface of the assembly shell and seals the upper end surface of the assembly shell. A number of assembly holes are evenly distributed on the support plate, and the support plate is connected to the filter core through the assembly holes. There are several filter cores. The upper end surfaces of each filter core extend out of the upper end surface of the assembly shell through the assembly holes and are connected to the gasification chamber. At the same time, the lower half of the filter core is located inside the assembly shell and is connected to the purification chamber of the assembly shell. At the same time, each filter core is connected in parallel and is distributed parallel to the axis of the assembly shell. There are at least three filter nets, which are embedded in the assembly shell and distributed from top to bottom along the axis of the assembly shell. At the same time, the uppermost filter net abuts against the lower end surfaces of each filter core, and the lowermost filter net is coated outside the lower end surface of the assembly shell. At the same time, the adjacent two layers of filter nets are filled with a filter cotton layer and negative ion balls, and the filter cotton layer is coated outside the negative ion balls, and the weight of the filter cotton layer is 1 / 10 - 1 / 3 of the weight of the negative ion balls.

[0008] Further, a number of elastic bearing columns evenly distributed around the axis are provided on the lower end surface of the water collecting tank. Each elastic bearing column is evenly distributed around the axis of the water collecting tank and is parallel to the axis of the water collecting tank. At the same time, a number of wedge-shaped tips with a height of 3-10 mm are provided on the inner side surface of the water collecting tank. Each wedge-shaped tip is evenly distributed around the axis of the water collecting tank, and the axis of each wedge-shaped tip is perpendicular to the inner side surface of the water collecting tank. At least one ultrasonic oscillation mechanism is provided on the outer side surface of the water collecting tank, and the ultrasonic oscillation mechanism is electrically connected to the control circuit.

[0009] Further, the volatile matter collection device includes a bearing keel, a water storage bucket, a drainage pipe, a gas collecting copper pipe, a control valve and a pressure sensor. The bearing keel is a frame structure with a cross-section in the shape of "I". There is at least one water storage bucket, which is embedded in the bearing keel and connected to the bottom of the bearing keel. The axis of the water storage bucket is perpendicular to the horizontal plane. There is at least one gas collecting copper pipe, which is connected to the upper end surface of the bearing keel. The axis of the gas collecting copper pipe is parallel to the horizontal plane. A control valve is provided on the front end surface and the rear end surface of the gas collecting copper pipe respectively. The control valve on the rear end surface of the gas collecting copper pipe is connected to the water storage bucket through a drainage pipe. The control valve on the front end surface of the gas collecting copper pipe is connected to the gas-liquid two-phase separation mechanism. The pressure sensor is located at the connection position between the rear end surface of the gas collecting copper pipe and the control valve. The control valve and the pressure sensor are both electrically connected to the control circuit.

[0010] Further, an auxiliary support is provided on the upper end surface of the bearing keel and is connected to the gas collecting copper pipe through the auxiliary support. The auxiliary support includes a guiding chute, a slider and an elastic buckle. There are at least two guiding chutes, which are connected to the upper end surface of the bearing keel and are parallel to each other. Each guiding chute is slidably connected to at least one slider. The upper end surface of the slider is connected to the elastic buckle through a turntable mechanism. The axis of the gas collecting copper pipe is parallel to the upper end surface of the bearing keel and is perpendicular to the axis of each guiding chute. The gas collecting copper pipe is connected to the sliders provided on each guiding chute through the elastic buckle and is slidably connected to the guiding chute through the slider.

[0011] Further, the flow rate regulating device is connected to the bearing keel of the volatile matter collection device, and at least 1 / 4 of the flow rate regulating device is embedded in the bearing keel. The flow rate regulating device includes a storage tank, an adjusting piston, an adjusting spring column, a semiconductor refrigeration mechanism, an electric heating wire, a temperature sensor, a pressure sensor, a flow rate sensor, a metering pump, a peristaltic pump, and a control valve. The storage tank is a cylindrical cavity structure with its axis perpendicular to the horizontal plane. There is at least one electric heating wire, which is embedded in the inner side of the storage tank and distributed in a spiral structure around the axis of the storage tank. An assembly cavity coaxial with it is arranged at the bottom of the storage tank. The semiconductor refrigeration mechanism is located in the assembly cavity, and a plurality of ventilation openings are evenly distributed on the side wall of the assembly cavity corresponding to the semiconductor refrigeration mechanism. An adjusting piston coaxial with it is arranged in the storage tank, and the adjusting piston divides the storage tank into a pressure regulating cavity and an adjusting cavity from top to bottom. The adjusting spring column is located in the adjusting cavity and is connected between the adjusting piston and the bottom of the storage tank. An air inlet and an exhaust port are arranged at the top of the storage tank. Both the air inlet and the exhaust port are connected to a control valve. The air inlet is connected to the crust fluid aggregation mechanism through a peristaltic pump, and the exhaust port is connected to the metering pump through a diversion pipe. The metering pump is connected to the outer side of the storage tank and is connected to the air inlet of the volatile matter collection device through a diversion pipe. There is one temperature sensor and one pressure sensor, which are located in the storage tank and embedded in the top of the storage tank. The flow rate sensor is located outside the storage tank and is connected to the diversion pipes connected to the input end and the output end of the metering pump. The semiconductor refrigeration mechanism, the electric heating wire, the temperature sensor, the pressure sensor, the flow rate sensor, the metering pump, the peristaltic pump, and the control valve are all electrically connected to the control circuit.

[0012] A collection method for a gaseous volatile matter collection device in crust fluid includes the following steps:

[0013] S1. System prefabrication: First, the crust fluid aggregation mechanism, the flow rate regulating device, the gas-liquid two-phase separation mechanism, the volatile matter collection device, and the control circuit are respectively transported to the sampling point for assembly and installation to obtain a finished collection device. Then, the finished collection device is installed and positioned on the geological structure around the sampling point. The crust fluid aggregation mechanism is placed into the water body. At the same time, the formation water at the sampling point is filled into the water storage bucket, and the drainage pipe at the rear end of the volatile matter collection device is placed into the water storage bucket filled with formation water. The peristaltic pump in the flow rate regulating device is started to run in the reverse direction. The formation water in the water storage bucket flows successively along the drainage pipe at the rear end of the volatile matter collection mechanism to the crust fluid aggregation mechanism until the finished collection device is filled with formation water and circulates, completely exhausting the air in the finished collection device. Then, the valves of the gas-liquid two-phase separation mechanism and the volatile matter collection device are closed.

[0014] S2, Volatile Component Collection: After completing step S1, adjust the peristaltic pump to run forward, and at the same time open the drain port of the gas-liquid two-phase separation mechanism. As the gaseous volatiles accumulated in the crust fluid accumulation mechanism enter the gas-liquid two-phase separation mechanism through the flow rate regulating device, the formation water in the finished product collection device is discharged from the tail end of the gas collection copper tube by using the pressure of the gaseous volatiles. When the liquid level in the formation water in the gas-liquid two-phase separation mechanism drops to 1 / 2 - 1 / 3 of the device height, close the drain port, and at the same time open the valve connecting the gas-liquid two-phase separation mechanism and the volatile component collection device. The gaseous volatiles enter the volatile component collection device, forming a continuous gaseous volatiles gas stream. After passing through the continuous gas stream in the copper tube collection device for 10 minutes, first close the lower part of the copper tube, and then close the upper part of the copper tube device. Thus, the gaseous volatiles collection operation can be completed.

[0015] Further, in step S2, when the flow rate regulating device is sampling the formation water, the gas flow rate at the sampling point is the ratio of the gas flow rate to the time. At the same time, after forming a continuous gaseous volatiles gas stream, pay attention to the liquid level in the gas-liquid two-phase separation mechanism synchronously. If the liquid level rises, reduce the flow rate of the fluid regulating device; otherwise, increase the flow rate of the fluid regulating device.

[0016] Compared with the prior art, the system of the present invention has a high degree of system integration and modularization. On the one hand, it can effectively meet the need for efficient and flexible sampling of formation water in various complex environments. At the same time, during the sampling process, it can effectively prevent solid pollutants from contaminating the equipment, and can also improve the efficiency of the separation and collection operations between gas and water. On the other hand, it can effectively improve the working efficiency and accuracy of the gas collection operation in the formation water, overcome the pollution of the formation water gas by external air, thereby greatly improving the quality of the sampled gas sample and the accuracy of the detection and analysis operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the system of the present invention;

[0018] Figure 2 It is a partial structural schematic diagram of the connection relationship between the water collection tank and the mud-water separation mechanism;

[0019] Figure 3 It is a partial cross-sectional structural schematic diagram of the flow rate regulating device;

[0020] Figure 4 It is a partial structural schematic diagram of the connection relationship between the volatile component collection device and the auxiliary support;

[0021] Figure 5 It is a schematic flowchart of the method of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-4 , a gaseous volatile component collection device in crustal fluid, comprising a crustal fluid aggregation mechanism 1, a flow rate adjustment device 2, a gas-liquid two-phase separation mechanism 6, a volatile component collection device 3 and a control circuit 4. The crustal fluid aggregation mechanism 1 is connected to the flow rate adjustment device 2 through a gas guide pipe. The flow rate adjustment device 2 is connected to the gas-liquid two-phase separation mechanism 6 through a diversion pipe. The gas-liquid two-phase separation mechanism 6 is connected to the volatile component collection device 3 through a gas guide pipe. Both the flow rate adjustment device 2 and the volatile component collection device 3 are electrically connected to the control circuit 4.

[0024] Specifically, the crustal fluid aggregation mechanism 1 includes a support column 11, a guiding arm 12, a water collecting tank 13, a mud-water separation mechanism 14, a control valve 35, a liquid level gauge 15, and a temperature sensor 16. The water collecting tank 13 is in a conical trough structure, and its outer side surface is hinged to the front end surface of the guiding arm 12 through a hinge. The lower end surface of the water collecting tank 13 is parallel to the horizontal plane. The lower end surface of the guiding arm 12 is hinged to the upper end surface of at least one support column 11. The axis of the support column 11 is perpendicular to the horizontal plane, and its lower end surface is connected to the ground surface. An exhaust port 17 coaxial with it is provided at the top of the water collecting tank 13. At the same time, the exhaust port 17 is connected to the flow rate adjustment device 2 through a diversion pipe, and the exhaust port 17 is connected to the diversion pipe through the control valve 35. The mud-water separation mechanism 14 is embedded in the water collecting tank 13 and is coaxial with the water collecting tank 13. The mud-water separation mechanism 14 divides the water collecting tank 13 into a gasification chamber 101 and a purification chamber 102 from top to bottom, and the mud-water separation mechanism 14 is located in the purification chamber 102. The gasification chamber 101 and the purification chamber 102 are connected through the mud-water separation mechanism 14, and the lower end surface of the mud-water separation mechanism 14 is at least 10 mm above the lower end surface of the water collecting tank 13. The liquid level gauge 15 is connected to the outer side surface of the water collecting tank 13. There are at least two temperature sensors 16, and at least one temperature sensor 16 is provided in both the gasification chamber 101 and the purification chamber 102. The control valve 35, the liquid level gauge 15, and the temperature sensor 16 are all electrically connected to the control circuit 4.

[0025] In this embodiment, the guiding arm 12 is a multi-joint robotic arm; the support column 11 is a telescopic column structure with at least two levels.

[0026] When collecting formation water samples using the crust fluid aggregation mechanism, the lower end face of the collection tank is parallel to the water surface of the formation water leakage point, and at least 1 / 2 of the height of the collection tank is embedded in the water body. When immersing the collection tank into the water body at the formation water leakage point, first connect the collection tank to the guiding arm, and then connect the guiding arm to the support column. Then insert the support column into the ground at the position of the formation water leakage point. Finally, adjust the position of the collection tank through the guiding arm and embed the collection tank into the water body at the formation water leakage point, so as to enable the staff to deploy the equipment remotely, overcoming the defects of sampling difficulties and potential safety hazards caused by factors such as high-temperature water vapor at the formation water leakage point and the difficult-to-stand ground structure during the sampling of traditional sampling equipment.

[0027] In addition, the provided mud-water separation mechanism can effectively prevent equipment blockage and water and gas pollution caused by pollutants such as sediment in the water body at the formation water leakage point; at the same time, the provided liquid level gauge can detect the position of the collection tank immersed in the water body, improving the positioning accuracy of the collection tank; the provided temperature sensor can detect the temperature of the water body at the formation water leakage point. Using the detected temperature, on the one hand, the content of water vapor in the sampled gas can be preliminarily judged; on the other hand, it can also give a high-temperature warning to the staff, improving the safety of equipment operation.

[0028] It should be noted that the muddy water separation mechanism 14 includes an elastic sealing ring 141, an assembly shell 142, a filter net 143, a filter cotton layer 144, negative ion balls 145, a support plate 146, and a filter core 147. Among them, the assembly shell 142 is a hollow cylindrical structure. The outer side surface of the assembly shell 142 is connected to the inner side surface of the water collecting tank 13 through a connecting mechanism, and the assembly shell 142 and the water collecting tank 13 are coaxially distributed. The elastic sealing ring 141 is wrapped around the outer side of the assembly shell 142 and is located at the contact surface between the water collecting tank 13 and the assembly shell 142. The support plate 146 is embedded in the upper end surface of the assembly shell 142 and seals the upper end surface of the assembly shell 142. A number of assembly holes 148 are evenly distributed on the support plate 146, and the support plate 146 is connected to the filter core 147 through the assembly holes 148. There are several filter cores 147. The upper end surfaces of each filter core 147 extend out of the upper end surface of the assembly shell 142 through the assembly holes 148 and are connected to the gasification chamber 101. At the same time, the lower half of the filter core 147 is located inside the assembly shell 142 and is connected to the purification chamber 102 of the assembly shell 142. At the same time, the filter cores 147 are connected in parallel and are distributed parallel to the axis of the assembly shell 142. There are at least three filter nets 143, which are embedded in the assembly shell 142 and are distributed from top to bottom along the axis of the assembly shell 142. At the same time, the uppermost filter net 143 abuts against the lower end surfaces of each filter core 147, and the lowermost filter net 143 is wrapped around the outer side of the lower end surface of the assembly shell 142. At the same time, the space between adjacent two layers of filter nets 143 is filled with a filter cotton layer 144 and negative ion balls 145, and the filter cotton layer 144 is wrapped around the negative ion balls 145, and the weight of the filter cotton layer 144 is 1 / 10 - 1 / 3 of the weight of the negative ion balls 145.

[0029] When the muddy water separation mechanism operates, the water body and the gas contained in the water body enter the water collecting tank from bottom to top along the axis of the water collecting tank. Thus, the water body is preliminarily filtered through the filter net, the filter cotton layer, and the negative ion balls of the muddy water separation mechanism, and the pollutants such as large-particle-size sediment are preliminarily filtered and purified. Then, the preliminarily purified water body and gas enter the gasification chamber of the water collecting tank after being filtered and purified by each filter core, and the preliminary sampling can be completed.

[0030] At the same time, a number of elastic bearing columns 131 evenly distributed around its axis are provided on the lower end surface of the water collecting tank 13. Each elastic bearing column 131 is evenly distributed around the axis of the water collecting tank 13 and is distributed parallel to the axis of the water collecting tank 13. At the same time, a number of wedge-shaped projections 132 with a height of 3 - 10 mm are provided on the inner side surface of the water collecting tank 13. Each wedge-shaped projection 132 is evenly distributed around the axis of the water collecting tank 13. At the same time, the axis of each wedge-shaped projection 132 is perpendicularly distributed to the inner side surface of the water collecting tank 13. At least one ultrasonic oscillation mechanism 133 is provided on the outer side surface of the water collecting tank 13, and the ultrasonic oscillation mechanism 133 is electrically connected to the control circuit 4.

[0031] The elastic bearing columns provided in the water collecting tank can effectively improve the reliable positioning of the water collecting tank at the bottom of the formation water leakage point. The provided wedge can effectively guide the water flow and air flow, and utilize the surface tension of the liquid to achieve the separation between the water body and the gas, thereby improving the gas separation efficiency.

[0032] Meanwhile, the provided ultrasonic oscillation mechanism can prevent the gas from adhering to the surface of the water collecting tank by generating vibrations, thereby improving the air flow supply and discharge efficiency.

[0033] At the same time, the volatile matter collection device 3 includes a bearing keel 31, a water storage bucket 32, a drainage pipe 34, a gas collecting copper pipe 33, a control valve 35 and a pressure sensor 36. Among them, the bearing keel 31 is a frame structure with an "I" - shaped cross - section. There is at least one water storage bucket 32, which is embedded in the bearing keel 31 and connected to the bottom of the bearing keel 31. The axis of the water storage bucket 32 is vertically distributed with respect to the horizontal plane. There is at least one gas collecting copper pipe 33, which is connected to the upper end surface of the bearing keel 31. The axis of the gas collecting copper pipe 33 is horizontally distributed. A control valve 35 is provided on both the front end face and the rear end face of the gas collecting copper pipe 33. The control valve 35 on the rear end face of the gas collecting copper pipe 33 is connected to the water storage bucket 32 through the drainage pipe 34. The control valve 35 on the front end face of the gas collecting copper pipe 33 is connected to the gas - liquid two - phase separation mechanism 6. The pressure sensor 36 is located at the connection position between the rear end face of the gas collecting copper pipe 33 and the control valve 35. The control valves 35 and the pressure sensor 36 are both electrically connected to the control circuit 4.

[0034] In addition, an auxiliary support 5 is provided on the upper end surface of the bearing keel 31 and is connected to the gas collecting copper pipe 33 through the auxiliary support 5. The auxiliary support 5 includes a guiding chute 51, a slider 52, and an elastic buckle 54. Among them, there are at least two guiding chutes 51, which are connected to the upper end surface of the bearing keel 31 and are parallelly distributed. At the same time, each guiding chute 51 is slidably connected to at least one slider 52. The upper end surface of the slider 52 is connected to the elastic buckle 54 through a turntable mechanism 53. The axis of the gas collecting copper pipe 33 is parallel to the upper end surface of the bearing keel 31 and is perpendicular to the axis of each guiding chute 51. The gas collecting copper pipe 33 is connected to the sliders 52 provided in each guiding chute 51 through the elastic buckle 54 and is slidably connected to the guiding chute 51 through the slider 52.

[0035] In addition, the flow rate regulating device 2 is connected to the bearing keel 31 of the volatile matter collection device 3, and at least 1 / 4 of the flow rate regulating device 2 is embedded in the bearing keel 31. The flow rate regulating device 2 includes a storage tank 21, a regulating piston 22, a regulating spring column 23, a semiconductor refrigeration mechanism 24, an electric heating wire 25, a temperature sensor 16, a pressure sensor 36, a flow rate sensor 26, a metering pump 27, a peristaltic pump 20 and a control valve 35. The storage tank 21 is a cylindrical cavity structure with its axis perpendicular to the horizontal plane. There is at least one electric heating wire 25, which is embedded on the inner side of the storage tank 21 and distributed in a spiral structure around the axis of the storage tank 21. An assembly cavity 28 coaxial with it is arranged at the bottom of the storage tank 21. The semiconductor refrigeration mechanism 24 is located in the assembly cavity 28, and a number of ventilation openings 29 are evenly distributed on the side wall of the assembly cavity 28 corresponding to the semiconductor refrigeration mechanism 24. A regulating piston 22 coaxial with the storage tank 21 is arranged in the storage tank 21, and the regulating piston 22 divides the storage tank 21 into a pressure regulating cavity 211 and a regulating cavity 212 from top to bottom. The regulating spring column 23 is located in the regulating cavity 212 and is connected between the regulating piston 22 and the bottom of the storage tank 21. An air inlet 201 and an exhaust port 17 are arranged at the top of the storage tank 21. Both the air inlet 201 and the exhaust port 17 are connected to a control valve 35. The air inlet 201 is connected to the crust fluid aggregation mechanism 1 through the peristaltic pump 20, and the exhaust port 17 is connected to the metering pump 27 through a guide pipe. The metering pump 27 is connected to the outer side of the storage tank 21 and is connected to the air inlet 201 of the volatile matter collection device 3 through a guide pipe. One temperature sensor 16 and one pressure sensor 36 are located in the storage tank 21 and embedded in the top of the storage tank 21. The flow rate sensor 26 is located outside the storage tank 21 and is connected to the guide pipes connected to the input end and the output end of the metering pump 27. The semiconductor refrigeration mechanism 24, the electric heating wire 25, the temperature sensor 16, the pressure sensor 36, the flow rate sensor 26, the metering pump 27, the peristaltic pump 20 and the control valve 35 are all electrically connected to the control circuit 4.

[0036] During operation, after the gas is transported into the storage tank, the pressure in the storage tank increases. While the pressure increases, it drives the liquid and the regulating piston in the storage tank to move downward as a whole. While satisfying gas storage, the pressure maintaining operation is realized through the elasticity of the regulating spring column. At the same time, the regulating spring column is compressed to store elastic potential energy. When the gas pressure in the storage tank decreases, under the drive of the elastic potential energy, the liquid level in the storage tank rises as a whole, compressing the storage space in the storage tank, so as to achieve the effect of stabilizing the gas pressure.

[0037] The provided semiconductor refrigeration mechanism, electric heating wire, and temperature sensor cooperate. During operation, the temperature sensor first accurately obtains the temperatures of the input and output gases. Then, the semiconductor refrigeration mechanism operates to cool the storage tank as a whole. By cooling, the gas input into the storage tank is condensed, causing the water vapor in the sampled gas to condense and liquefy, thus achieving separation from the gas. At the same time, the provided electric heating wire can adjust the temperature of the storage tank as a whole, making the temperature of the output gas consistent with the temperatures of subsequent equipment and the external environment, preventing the gas from condensing during transportation due to drastic temperature changes, which could lead to a decrease in air pressure and volume, and also preventing the condensate water from contaminating or eroding the equipment due to gas condensation.

[0038] Meanwhile, the provided metering pump can assist the provided pressure sensor and flow sensor to accurately control and measure the gas supply discharged, facilitating the improvement of the accuracy of gas collection and detection operation control and the precision of operation.

[0039] In this embodiment, the control circuit 4 is a circuit system based on any one of the FPGA chip and the DSP chip, and the control circuit 4 is additionally provided with a serial communication circuit and an auxiliary drive power supply based on a battery pack.

[0040] As Figure 5 shown, a collection method for a gaseous volatile collection device in crustal fluids includes the following steps:

[0041] S1, System prefabrication: First, the crustal fluid aggregation mechanism, flow regulation device, gas-liquid two-phase separation mechanism, volatile collection device, and control circuit are separately transported to the sampling point for assembly and installation to obtain a finished collection device. Then, the finished collection device is installed and positioned on the geological structure around the sampling point. The crustal fluid aggregation mechanism is placed into the water body. At the same time, the formation water at the sampling point is filled into the water storage bucket, and the drainage pipe at the rear end of the volatile collection device is placed into the water storage bucket filled with formation water. The peristaltic pump in the flow regulation device is started to run in the reverse direction. The formation water in the water storage bucket flows sequentially along the drainage pipe at the rear end of the volatile collection mechanism to the crustal fluid aggregation mechanism until the finished collection device is filled with formation water and circulates, completely exhausting the air in the finished collection device. Then, the valves of the gas-liquid two-phase separation mechanism and the volatile collection device are closed.

[0042] S2, Volatile Component Collection. After completing step S1, adjust the peristaltic pump to run forward, and at the same time open the drain port of the gas-liquid two-phase separation mechanism. As the gaseous volatile components accumulated in the crust fluid accumulation mechanism enter the gas-liquid two-phase separation mechanism through the flow regulating device, the formation water in the finished product collection device is discharged from the tail end of the gas collection copper tube by using the pressure of the gaseous volatile components. When the liquid level height of the formation water in the gas-liquid two-phase separation mechanism drops to 1 / 2 - 1 / 3 of the device height, close the drain port, and at the same time open the valve connecting the gas-liquid two-phase separation mechanism and the volatile component collection device. The gaseous volatile components enter the volatile component collection device, forming a continuous gaseous volatile component airflow. After the copper tube collection device passes through the continuous airflow for 10 minutes, first close the lower part of the copper tube, and then close the upper part of the copper tube device. Thus, the gaseous volatile component collection operation can be completed.

[0043] In this embodiment, in step S2, when the flow regulating device is sampling formation water, the gas flow rate at the sampling point is the ratio of the gas flow rate to the time. At the same time, after forming a continuous gaseous volatile component airflow, pay attention to the liquid level height in the gas-liquid two-phase separation mechanism synchronously. If the liquid level height rises, reduce the flow rate of the fluid regulating device; otherwise, increase the flow rate of the fluid regulating device.

[0044] Compared with the prior art, the system of the present invention has a high degree of system integration and modularization. On the one hand, it can effectively meet the need for efficient and flexible sampling of formation water in various complex environments. At the same time, during the sampling process, it can effectively prevent solid pollutants from contaminating the equipment, and can also improve the efficiency of the separation and collection operations between gas and water. On the other hand, it can effectively improve the working efficiency and accuracy of the gas collection operation in formation water, overcome the pollution of the formation water gas by external air, thereby greatly improving the quality of the sampled gas sample and the accuracy of the detection and analysis operation.

[0045] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one" does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0046] In the description of this specification, terms such as "connection", "installation", "fixation", "setting", etc. are understood in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and technical effects, or it can be an integral connection or a partial connection. In the case of this example, for those of ordinary skill in the art, the specific meanings of the above terms in this invention or the invention can be understood according to specific circumstances.

[0047] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for collecting gaseous volatiles in crustal fluids, characterized in that: The gaseous volatiles collection device in the crustal fluid includes a crustal fluid gathering mechanism, a flow regulating device, a gas-liquid two-phase separation mechanism, a volatiles collection device and a control circuit, wherein the crustal fluid gathering mechanism is connected to the flow regulating device through an air guide tube, the flow regulating device is connected to the gas-liquid two-phase separation mechanism through a flow guide tube, the gas-liquid two-phase separation mechanism is connected to the volatiles collection device through an air guide tube, and the flow regulating device and the volatiles collection device are both electrically connected to the control circuit, wherein the crustal fluid gathering mechanism includes a support column, a guide arm, a water collecting trough, a mud-water separation mechanism, a control valve, a liquid level meter, and a temperature sensor, wherein the water collecting trough is a conical trough structure, the outer side surface of which is hinged to the front end surface of the guide arm by a hinge, the lower end surface of the water collecting trough is parallel to the horizontal plane, the lower end surface of the guide arm is connected to the upper end surface of at least one support column Hinged, the axis of the support column is perpendicular to the horizontal plane, and its lower end face is connected to the ground surface, an exhaust port coaxially distributed therewith is provided on the top of the water collecting tank, and the exhaust port is communicated with the flow regulating device through a guide pipe, and the exhaust port and the guide pipe are communicated through a control valve, the mud and water separation mechanism is embedded in the water collecting tank and coaxially distributed therewith, the mud and water separation mechanism divides the water collecting tank from top to bottom into a gasification chamber and a purification chamber, and the mud and water separation mechanism is located in the purification chamber, wherein the gasification chamber and the purification chamber are communicated through the mud and water separation mechanism, and the lower end face of the mud and water separation mechanism is located at least 10 mm above the lower end face of the water collecting tank, the liquid level gauge is connected to the outer side of the water collecting tank, at least two temperature sensors are provided, and at least one temperature sensor is provided in the gasification chamber and the purification chamber, the control valve, liquid level gauge and temperature sensor are all electrically connected to the control circuit; The mud-water separation mechanism includes an elastic sealing ring, an assembly shell, a filter screen, a filter cotton layer, a negative ion ball, a support plate, and a filter element; The flow regulating device is connected to the supporting keel of the volatile collection device, and at least 1 / 4 of the flow regulating device is embedded in the supporting keel. The flow regulating device includes a storage tank, an adjusting piston, an adjusting spring column, a semiconductor refrigeration mechanism, an electric heating wire, a temperature sensor, an air pressure sensor, a flow sensor, a metering pump, a peristaltic pump and a control valve.

2. The device for collecting gaseous volatiles in crustal fluid according to claim 1, characterized in that: The assembly shell is a cylindrical hollow columnar structure. The outer side of the assembly shell is connected to the inner side of the water collecting tank through a connecting mechanism, and the assembly shell and the water collecting tank are coaxially distributed. The elastic sealing ring is coated on the outside of the assembly shell and is located at the contact surface between the water collecting tank and the assembly shell. The support plate is embedded in the upper end surface of the assembly shell and blocks the upper end surface of the assembly shell. A number of assembly holes are evenly distributed on the support plate, and the support plate is connected to the filter element through the assembly holes. There are several filter elements, and the upper end surface of each filter element exceeds the upper end surface of the assembly shell through the assembly hole and is connected to the gasification cavity. At the same time, the lower half of the filter element is located in the assembly shell and is connected to the purification chamber of the assembly shell. At the same time, the filter elements are connected in parallel and distributed parallel to the axis of the assembly shell. There are at least three filter screens, which are embedded in the assembly shell and distributed from top to bottom along the axis of the assembly shell. At the same time, the uppermost filter screen is against the lower end surface of each filter element, and the lowermost filter screen is covered on the outside of the lower end surface of the assembly shell. At the same time, the space between two adjacent layers of filter screens is filled with filter cotton layers and negative ion balls, and the filter cotton layer is covered on the outside of the negative ion balls, and the weight of the filter cotton layer is 1 / 10-1 / 3 of the weight of the negative ion balls.

3. The device for collecting gaseous volatiles in crustal fluid according to claim 1, characterized in that: The lower end surface of the water collection trough is provided with a plurality of elastic bearing columns evenly distributed around its axis, and each elastic bearing column is evenly distributed around the axis of the water collection trough and parallel to the axis of the water collection trough; at the same time, the inner side surface of the water collection trough is provided with a plurality of wedges with a height of 3-10 mm, and each wedge is evenly distributed around the axis of the water collection trough, and at the same time, each wedge axis is perpendicular to the inner side surface of the water collection trough, and at least one ultrasonic oscillation mechanism is also provided on the outer side surface of the water collection trough, and the ultrasonic oscillation mechanism is electrically connected to the control circuit.

4. The device for collecting gaseous volatiles in crustal fluid according to claim 1, characterized in that: The volatile matter collection device includes a supporting keel, a water storage bucket, a drainage pipe, a gas collecting copper tube, a control valve and an air pressure sensor, wherein the supporting keel is a frame structure with an "I"-shaped cross-section, at least one water storage bucket is embedded in the supporting keel and connected to the bottom of the supporting keel, the axis of the water storage bucket is perpendicular to the horizontal plane, at least one gas collecting copper tube is connected to the upper end face of the supporting keel, the axis of the gas collecting copper tube is parallel to the horizontal plane, a control valve is provided on the front end face and the rear end face of the gas collecting copper tube, and the control valve on the rear end face of the gas collecting copper tube is connected to the water storage bucket through the drainage pipe, the control valve on the front end face of the gas collecting copper tube is connected to the gas-liquid two-phase separation mechanism, the air pressure sensor is located at the connection position between the rear end face of the gas collecting copper tube and the control valve, and the control valve and the air pressure sensor are both electrically connected to the control circuit.

5. The device for collecting gaseous volatiles in crustal fluid according to claim 4, characterized in that: An auxiliary bracket is provided on the upper end surface of the load-bearing keel, and is connected to the gas collecting copper tube through the auxiliary bracket. The auxiliary bracket includes a guide slide, a slider, and an elastic clip. There are at least two guide slides, which are connected to the upper end surface of the load-bearing keel and distributed in parallel. At the same time, each guide slide is slidably connected to at least one slider. The upper end surface of the slider and the elastic clip are connected through a turntable mechanism. The axis of the gas collecting copper tube is distributed parallel to the upper end surface of the load-bearing keel and perpendicular to the axis of each guide slide. The gas collecting copper tube is connected to the slider provided in each guide slide through an elastic clip, and is slidably connected to the guide slide through the slider.

6. The device for collecting gaseous volatiles in crustal fluid according to claim 1, characterized in that: The storage tank is a cylindrical cavity structure with an axis perpendicular to the horizontal plane. The at least one electric heating wire is embedded in the inner side of the storage tank and is distributed in a spiral structure around the axis of the storage tank. An assembly cavity coaxially distributed with the storage tank is provided at the bottom of the storage tank. The semiconductor refrigeration mechanism is located in the assembly cavity, and a plurality of vents are evenly distributed on the side walls of the assembly cavity corresponding to the semiconductor refrigeration mechanism. An adjusting piston coaxially distributed with the storage tank is provided in the storage tank, and the adjusting piston divides the storage tank from top to bottom into a pressure regulating cavity and an adjusting cavity. The adjusting spring column is located in the adjusting cavity and is connected to the adjusting piston and the bottom of the storage tank. An air inlet and an exhaust port are provided at the top of the storage tank. The air inlet and the exhaust port are both connected to a control valve, wherein the air inlet is connected to the crustal fluid gathering mechanism through a peristaltic pump, and the exhaust port is connected to the metering pump through a guide tube. The metering pump is connected to the outer side of the storage tank and is connected to the air inlet of the volatile collection device through the guide tube. The temperature sensor and the air pressure sensor are both located in the storage tank and embedded in the top of the storage tank. The flow sensor is located outside the storage tank and is connected to the guide tube connected to the input and output ends of the metering pump. The semiconductor refrigeration mechanism, electric heating wire, temperature sensor, air pressure sensor, flow sensor, metering pump, peristaltic pump and control valve are all electrically connected to the control circuit.

7. A method for collecting gaseous volatiles in crustal fluids according to claim 1, characterized in that: The method for collecting gaseous volatiles in crustal fluids comprises the following steps: S1, system prefabrication. First, the crustal fluid gathering mechanism, flow regulating device, gas-liquid two-phase separation mechanism, volatiles collection device and control circuit are transported to the sampling point respectively for assembly to obtain a finished collection device. The finished collection device is then installed and positioned on the geological structure around the sampling point. The crustal fluid gathering mechanism is placed in the water body. At the same time, the water storage bucket is filled with formation water at the sampling point, and the drainage pipe at the rear end face of the volatiles collection device is placed into the water storage bucket filled with formation water. The peristaltic pump in the flow regulating device is turned on and operated in reverse. The formation water in the water storage bucket flows along the drainage pipe at the rear end face of the volatiles collection mechanism to the crustal fluid gathering mechanism in sequence until the finished collection device is filled with formation water and circulated. The air in the finished collection device is completely removed. Then, the valves of the gas-liquid two-phase separation mechanism and the volatiles collection device are closed. S2, volatile matter collection, after completing step S1, adjust the peristaltic pump to run in the forward direction, and at the same time open the drain port of the gas-liquid two-phase separation mechanism, as the gaseous volatiles gathered in the crustal fluid gathering mechanism enter the gas-liquid two-phase separation mechanism through the flow regulating device, and use the pressure of the gaseous volatiles to discharge the formation water in the finished collection device from the tail end of the gas collecting copper tube; wait until the liquid level of the formation water in the gas-liquid two-phase separation mechanism drops to 1 / 2-1 / 3 of the device height, close the drain port, and at the same time open the valve connecting the gas-liquid two-phase separation mechanism and the volatile matter collection device; the gaseous volatiles enter the volatile matter collection device, forming a continuous gaseous volatiles airflow; after the continuous airflow passes through the copper tube collection device for 10 minutes, first close the lower part of the copper tube, and then close the upper part of the copper tube device; the gaseous volatiles collection operation is completed.

8. A method for collecting gaseous volatiles in crustal fluids according to claim 7, characterized in that: In step S2, when the flow regulating device is sampling formation water, the gas flow at the sampling point is the ratio of the gas flow to time; at the same time, after a continuous gaseous volatile gas flow is formed, the liquid level in the gas-liquid two-phase separation mechanism is paid attention to simultaneously. If the liquid level rises, the flow rate of the fluid regulating device is reduced, otherwise the flow rate of the fluid regulating device is increased.

Images