Apparatus for continuous extraction of ice core gases and simultaneous collection of water and method of use

Abstract

The application discloses a device for continuous extraction of ice core gas and synchronous collection of water body and a use method. The device comprises a sample containing shell, a sample pushing mechanism is arranged on the closed end of the sample containing shell, a transparent cover is arranged on the open end, and a melting ice part is arranged in the cover. The sample sealing sleeve comprises a transparent soft sleeve, the closed end of the soft sleeve is arranged in the sample containing shell and connected with the sample pushing mechanism penetrating through the closed end of the sample containing shell, and the open end of the soft sleeve extends out. When the cover is buckled with the sample containing shell, the part of the soft sleeve in the sample containing shell forms a sealed cavity containing ice core with the cover. The ice core is moved to the melting ice part under the pushing of the sample pushing mechanism and is melted by the melting ice part. The sample containing shell and the cover are provided with a blowing pipe, a gas sampling pipe and a drainage pipe are arranged on the cover, and the drainage pipe is connected with a water body collecting member. The application realizes continuous extraction of gas samples and synchronous collection of water samples for the whole ice core.

Description

Technical Field

[0001] This invention relates to an apparatus and method for continuous gas extraction and simultaneous water collection from ice cores, belonging to the technical field of ice core experimental equipment. Background Technology

[0002] Ice cores are cylindrical ice samples obtained vertically from the surface of a glacier to a certain depth within the glacier. Each layer of ice in each ice core contains a wealth of information about the climate and environmental conditions of the glacier region during its formation. This information is both regional and representative of a broad global climate and environmental situation. Therefore, ice core climate records can reveal regional and even global climate and environmental changes over historical periods. In particular, the gas samples sealed in ice cores represent the natural atmosphere trapped inside the ice body during the transformation of snowflakes from the glacier surface into ice. They are a direct carrier for understanding the composition and changes of the paleoatmosphere over historical periods. Thus, the extraction and analysis of gases from ice cores from different regions and at different time scales helps to reconstruct the basic trends and inter-regional differences in atmospheric composition changes across regions and globally, thereby exploring the basic compositional patterns and evolutionary characteristics of regional or global climate environments.

[0003] The extraction and analysis of gases from ice cores began in the late 1980s, with Switzerland, France, and the United States being among the first countries to conduct such research. In recent years, my country has also made initial progress in the analysis and determination of gases from ice cores and is continuously improving its techniques. Currently, there are two main methods for extracting gases from ice cores: wet extraction and dry extraction. Wet extraction involves melting the ice core sample under different temperatures and container atmospheres to release gases for gaseous component analysis. Dry extraction involves pulverizing the ice core sample while keeping it solid at low temperatures to release gases for analysis. Currently, wet extraction is widely used in most laboratories, while dry extraction is less common.

[0004] For the widely used wet extraction method, current experiments involve cutting a whole ice core of about 1 meter in length, extracting samples every 2-5 centimeters, and then extracting gas from each sample individually. However, practical experiments have shown that this method leads to the loss of valuable ice samples between adjacent samples during the cutting process. Furthermore, the cutting method also breaks up air bubbles sealed on the end faces of each sample, or increases the fragmentation of the sample itself, resulting in the loss of gas samples trapped in the ice core and significant sample waste. In addition, repeatedly performing gas extraction on multiple samples is cumbersome, inefficient, and lacks continuity in gas sample acquisition.

[0005] Therefore, in order to continuously, efficiently, and conveniently extract gas samples from ice cores for analysis, and to better support ice core climate record research and improve the depth of global climate and environmental change research, it is essential to design a device suitable for continuous extraction of gas samples from ice cores. Summary of the Invention

[0006] The purpose of this invention is to provide an apparatus and method for continuous gas extraction and simultaneous water collection from ice cores. This apparatus enables continuous extraction of gas samples and simultaneous collection of water samples from the entire ice core, eliminating sample waste and facilitating research.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An apparatus for continuous gas extraction and simultaneous water collection from ice cores includes a sample container, a sample sealing sleeve, a sample pushing mechanism, a cap, and a water collection component. The transparent sample container is rectangular, open at one end and closed at the other. The sample pushing mechanism is installed at the closed end of the sample container. The transparent cap is detachably fastened to the open end of the sample container, and an ice-melting component is installed inside the cap. The sample sealing sleeve comprises a transparent plastic sleeve, closed at one end and open at the other. The closed end of the sleeve is placed inside the sample container and connected to the sample pushing mechanism, which moves through the closed end of the sample container. The open end of the soft sleeve extends out of the sample housing and is sandwiched between the cap and the sample housing. Thus, when the cap and the sample housing are fastened together, the portion of the soft sleeve inside the sample housing and the cap can form a sealed cavity for containing the ice core, allowing the ice core to move toward the melting component under the pushing action of the sample pushing mechanism and be melted by the melting component. The sample housing and the cap are equipped with purge tubes for introducing inert gas into the sealed cavity. The cap is equipped with a gas inlet tube for discharging the gas released by the ice core, and the cap is equipped with a drain pipe connected to the external water collection component.

[0009] A method of using the device for continuous gas extraction and simultaneous water collection from ice cores includes the following steps: 1) placing a cylindrical ice core into the soft sleeve, so that the ice core and the soft sleeve are placed together in the sample receiving shell; 2) loosening the cap onto the sample receiving shell, wherein a portion of the soft sleeve extends out between the cap and the sample receiving shell; 3) moving the ice core by means of the sample pushing mechanism, stopping the pushing when the end face of the ice core to be melted is observed to contact the melting component; 4) pressing the cap to tighten it onto the sample receiving shell, so that the ice core is in the sealed cavity; 5) feeding the sealed cavity... 6) Inert gas is introduced into the ice core and the water collection component connected to the sealed cavity to place the ice core in a pure inert gas environment; 7) The inert gas is stopped from being introduced into the water collection component, and the flow rate of the inert gas continuing to be introduced into the sealed cavity is reduced to the sample injection flow rate; 8) The ice melting component is heated, and the sample pushing mechanism continues to push the ice core to move in the sealed cavity at a set melting speed so that the end face of the ice core to be melted is continuously melted, so that the gas released after the ice core melts is sent into the gas analysis instrument, and the water formed after melting flows into the water collection component; 9) The continuous extraction of ice core gas and the synchronous collection of water are completed.

[0010] The advantages of this invention are:

[0011] The device of this invention is easy to operate, highly automated, and improves experimental efficiency. It is designed for experiments on whole ice cores, enabling continuous extraction of sealed gas samples from the entire ice core. The gas extraction process is completed in one operation without the need for repeated operations, reducing the workload of experimental personnel. At the same time, it also enables the simultaneous collection of water samples from the melted ice core. It is particularly suitable for experimental analysis of whole ice cores after field drilling, and there is no problem of loss of ice and gas samples due to cutting the ice core. It helps to carry out ice core climate record research and improve the depth of global climate and environmental change research. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structural composition of the device for continuous gas extraction from ice cores and simultaneous water collection according to the present invention.

[0013] Figure 2 yes Figure 1 A schematic diagram of the AA-direction cross-section.

[0014] Figure 3 This is a schematic diagram of the arrangement of the push rod and the first purge tube on the substrate, viewed from direction B.

[0015] Figure 4 This is a schematic diagram of the structure of the cap and its heating plate from direction C (the gas inlet tube and water collection components are not shown). Detailed Implementation

[0016] like Figures 1 to 4 As shown, this invention proposes a device for continuous gas extraction and simultaneous water collection from ice cores, comprising a sample container 10, a sample sealing sleeve 20, a sample pushing mechanism 30, a cap 40, and a water collection component 50. The transparent sample container 10 is rectangular, open at one end and closed at the other. The sample pushing mechanism 30 is installed at the closed end of the sample container 10, and the transparent cap 40 is detachably fastened to the open end of the sample container 10. An ice-melting component 70 is installed inside the cap 40. The sample sealing sleeve 20 includes a transparent plastic soft sleeve 21, closed at one end and open at the other. The closed end of the soft sleeve 21 is placed inside the sample container 10 and connected to the sample pushing mechanism 30, which moves through the closed end of the sample container 10. The open end of the soft sleeve 21 extends out of the sample housing 10 and is sandwiched between the cap 40 and the sample housing 10. Thus, when the cap 40 and the sample housing 10 are fastened together (meaning tightly fitted), the part of the soft sleeve 21 inside the sample housing 10 and the cap 40 can form a sealed cavity for containing the ice core 90, so that the ice core 90 moves toward the melting component 70 under the pushing action of the sample pushing mechanism 30 and is melted by the melting component 70. The sample housing 10 and the cap 40 are equipped with purge tubes for introducing inert gas into the sealed cavity. The cap 40 is equipped with a gas inlet tube 63 for discharging the gas (paleoatmosphere) released by the ice core 90, and the cap 40 is equipped with a drain pipe 80, which is connected to the external water collection component 50.

[0017] like Figure 1 The closed end of the soft sleeve 21 is fixed with a base plate 22. The base plate 22 is provided with a push rod 23 (or push block). The push rod 23 is used to push against the end face of the ice core 90 and push the columnar ice core 90 forward. The push rod 23 avoids large-area contact between the end face of the ice core 90 and the base plate 22, thus avoiding unnecessary wear on the ice core 90. Preferably, the base plate 22 is designed with multiple push rods 23. Figure 3 (The illustration shows a configuration with four evenly distributed push rods 23), and the substrate 22 is connected to the sample pushing mechanism 30.

[0018] In this invention, the soft sleeve 21 is made of plastic that is resistant to low temperatures (minus 25°C) and transparent (or semi-transparent). The base plate 22 and the top rod 23 are made of Teflon material that is resistant to low temperatures (minus 25°C). The Teflon material can prevent the ice core from melting prematurely when it comes into contact with the ice core.

[0019] like Figure 1The sample pushing mechanism 30 includes a motor 35. The output shaft of the motor 35 is connected to one end of a connecting rod 32 via a single pulling rope 33 (preferably a flat rope). The other end of the connecting rod 32 is connected to one end of a push rod 31. The other end of the push rod 31 moves through the closed end of the sample housing 10 and the soft sleeve 21 and is connected to the substrate 22.

[0020] In actual implementation, after the motor 35 runs, the output shaft rotates, so the pull rope 33 continuously winds around the output shaft, thereby driving the connecting rod 32 to move linearly toward the closed end of the sample housing 10. As a result, the push rod 31 extends from the closed end of the sample housing 10 into the interior of the sample housing 10 under the action of the connecting rod 32.

[0021] In the actual design, the motor 35 and the sample housing 10 are on the same experimental platform, and the connecting rod 23 is in a horizontal state.

[0022] To ensure the linear motion stability of the push rod 31, a guide support block 34 can be designed. The guide support block 34 is preferably made of aluminum alloy, and its bottom is fixed to the experimental table surface. Specifically, the guide support block 34 can be designed as a ring, with a smooth inner wall for the push rod 31 to pass through, and the outer wall of the push rod 31 is also smooth. Therefore, the push rod 31 can move translatively through the guide support block 34. Here, the guide support block 34 not only guides the push rod 31 but also provides support, ensuring the reliability of the push rod 31's reciprocating linear motion and ensuring the stable drive of the push rod 31 by the connecting rod 32. In actual manufacturing, the guide support block 34 and the push rod 31 can be implemented by using existing guide rails and sliders in reverse; that is, the existing movable slider is fixed to serve as the guide support block 34, and the existing stationary guide rail moves linearly to serve as the push rod 31.

[0023] In this invention, the purge tube includes a first purge tube 61 and a second purge tube 62, wherein: the push rod 31 is a hollow tube, and the external first purge tube 61 is exposed within the sealed cavity after passing through the inner cavity of the push rod 31, the soft sleeve 21, and the base plate 22. Typically, the first purge tube 61 is located within the gap between each push rod 23. (Refer to...) Figure 3 To understand this, the first purge pipe 61 should ensure unobstructed airflow; the second purge pipe 62 is located on the cover 40. Figure 1 The diagram shows the second purge pipe 62 located at the lower part of the cover 40; the first purge pipe 61 and the second purge pipe 62 are connected to an inert gas storage tank (such as a helium storage tank) via the same purge valve (not shown in the figure).

[0024] In the actual design, the sample housing 10 consists of four side plates 11 and a bottom plate 12. The inner cross-section of the sample housing 10 is square, and its shape and size are adapted to the ice core. The entire sample housing 10 is rectangular, and the bottom plate 12 has a smooth circular hole for the push rod 31 to pass through and be installed.

[0025] In this invention, the sample container 10 can be made of rigid transparent fiberglass. During the experiment, the sample container 10 is placed in a lying position, that is, one of the shell side plates 11 is placed on the experimental platform.

[0026] In this invention, the connecting rod 32 and the push rod 31 are preferably made of aluminum alloy.

[0027] like Figure 1 The ice-melting component 70 is a heating plate, which is installed inside the cover 40 and is opposite to the closed end of the sample container shell 10.

[0028] In this invention, the cover 40 consists of four side plates 42 and a top plate 41, with the heating plate adhered to the top plate 41. The cover 40 has a square cross-section, and its shape and size are adapted to the sample housing 10. The top plate 41 and the two opposite side plates 42 of the cover 40 can be made of aluminum alloy, while the other two opposite side plates 42 can be made of rigid transparent fiberglass, and there are no limitations on this.

[0029] like Figure 1 The cap 40 may be provided with a slot 420 at the cap opening position, the slot 420 is used to ensure that the cap 40 can be tightly fitted and fastened to the open end of the sample container shell 10.

[0030] In practical design, such as Figure 4 The heating plate fixed to the top plate 41 and the surrounding side plates 42 do not contact each other and leave a certain gap 71. The gap 71 is designed to better arrange the second purge pipe 62, etc.

[0031] Here, the installation of the gas injection tube 63, the second purge tube 62, and the drain tube 80 on the cap 40 should all be sealed to ensure the airtightness of the sealed cavity.

[0032] Here, the substrate 22 is installed inside the soft sleeve 21. The connection between the push rod 31 and the substrate 22, as well as the arrangement of the first purge tube 61 through the soft sleeve 21 and the substrate 22, should all be sealed to ensure sealing performance.

[0033] like Figure 1The water collection component 50 includes a conical collection bottle 51 (such as one made of aluminum alloy). The bottle mouth of the collection bottle 51 is detachably screwed to the drain pipe 80. The bottom of the collection bottle 51 is connected to a gas purge pipe 52, which is equipped with a purge switch 53. The drain pipe 80 is equipped with a drain switch 81 on the part of the drain pipe that is exposed outside the cap 40.

[0034] Further design, such as Figure 1 The drain pipe 80 is connected to a vent pipe 82 between its own screw interface and the drain switch 81, and the vent pipe 82 is equipped with a vent switch 820.

[0035] Here, the gas purge pipe 52, the first purge pipe 61, and the second purge pipe 62 should preferably be made of stainless steel. The gas purge pipe 52 can be connected to the same inert gas storage tank together with the first purge pipe 61 and the second purge pipe 62. Of course, the gas purge pipe 52 can also be connected to other inert gas storage tanks alone, without limitation.

[0036] In this invention, the gas injection tube 63 is connected to the injection port of the gas analyzer.

[0037] like Figure 2 Multiple elongated guide strips 13 are arranged parallel to each other inside the sample housing 10. The length direction of the guide strips 13 is consistent with the direction in which the sample pushing mechanism 30 pushes the ice core 90. Figure 2 The design of two guide bars 13 is shown. In this invention, the guide bars 13 create a gap between the ice core 90 placed inside the soft sleeve 21 and the sample housing 10. This ensures that after the sample pushing mechanism 30 moves the ice core 90 and the soft sleeve 21 wrinkles slightly, the wrinkles in the soft sleeve 21 do not affect the smooth movement of the ice core 90. Of course, because the soft sleeve 21 is extremely thin, even without the guide bars 13, the ice core 90 will not be unable to move due to the wrinkles in the soft sleeve 21.

[0038] The present invention also provides a method for using the above-mentioned device for continuous gas extraction from ice cores and simultaneous water collection, comprising the following steps:

[0039] 1) Place the cylindrical ice core 90 into the soft sleeve 21, so that the ice core 90 and the soft sleeve 21 are placed together in the sample receiving shell 10;

[0040] 2) Loosen the cap 40 onto the open end of the sample container 10, wherein a portion of the soft sleeve 21 extends out between the cap 40 and the sample container 10;

[0041] 3) The ice core 90 is moved by the sample pushing mechanism 30, and the pushing stops when the end face of the ice core 90 to be melted is observed to contact the ice melting component 70.

[0042] 4) Press the cap 40 to make the cap 40 fit tightly on the open end of the sample container shell 10, so that the ice core 90 is in the sealed cavity;

[0043] 5) Inert gas with a high flow rate (100-150 mL / min) is introduced into the sealed cavity and the water collection component 50 connected to the sealed cavity to remove the ambient air inside the sealed cavity and the water collection component 50 where the ice core sample is located, so that the ice core 90 is in a pure inert gas environment.

[0044] 6) Stop introducing the above-mentioned high-flow-rate inert gas into the water collection component 50, and continue to introduce the inert gas into the sealed cavity at a low flow rate (i.e., the injection flow rate, 3-4 mL / min).

[0045] 7) Heat up the ice melting component 70, and continue to push the ice core 90 in the sealed cavity toward the ice melting component 70 at the set melting speed, so that the end face of the ice core 90 to be melted will continue to melt. At the same time, under the drive of a small flow of inert gas, the gas (paleoatmosphere) released after the ice core 90 melts is sent to the gas analysis instrument for detection, and the water formed after melting flows into the water collection component 50.

[0046] 8) Complete the continuous extraction of gas from ice core 90 and the synchronous collection of water.

[0047] In practical implementation, the above-described method of the present invention can be used to continuously extract gas and collect water simultaneously from the entire ice core 90 in one go. Of course, it can also be carried out step by step. That is, when the ice core 90 melts to a specified length, the melting component 70 and the sample pushing mechanism 30 are turned off, the ice core 90 stops melting, and then the connection between the water collection component 50 and the sealed cavity is cut off (the drain switch 81 is turned off). The collected water is transferred to other sample bottles and the water collection component 50 is reinstalled. The water collection component 50 is cleaned by its own components (by turning on the purge switch 53 and the gas outlet switch 820 and introducing inert gas into the collection bottle 51). Then the connection between the water collection component 50 and the sealed cavity is turned on (the drain switch 81 is turned on), and step 7) is repeated until the entire ice core 90 is completely melted.

[0048] The working process of the device of the present invention will be described in detail below.

[0049] During the experiment, the device of this invention is placed in a low-temperature environment (e.g., -25°C). The sample pushing mechanism 30 is reset to its initial state (the substrate 22 is close to the closed end of the sample housing 10). The first purge tube 61 and the second purge tube 62 are connected to the helium storage tank via the same purge valve. The gas injection tube 63 is connected to the inlet of the gas analyzer (an existing instrument). The collection bottle 51 is installed. The gas purge tube 52 is connected to the helium storage tank. The purge switch 53 and the purge valve installed on the gas purge tube 52 independently control the introduction of the purge gas. The first purge tube 61, the second purge tube 62, and the gas purge tube 52 are connected to the same helium storage tank, which has a built-in flow regulating valve that can control the flow rate and velocity of the output helium. Of course, other inert gases can also be used to replace helium.

[0050] Then, the entire ice core 90 obtained from field drilling (the ice core 90 is cylindrical, usually less than 100cm in length, and has a square cross-section, such as a square with a side length of 3cm) is placed inside the soft sleeve 21 within the sample housing 10, that is, the ice core 90 and the soft sleeve 21 are placed together in the sample housing 10. Then, the cap 40 is loosely fastened to the open end of the sample housing 10, with a portion of the soft sleeve 21 protruding and positioned between the cap 40 and the sample housing 10.

[0051] Then, start and control the motor 35 to run, so that the pull rope 33 is wound around the output shaft of the motor 35, causing the pull rope 33 to pull the connecting rod 32 toward the closed end of the sample housing 10, which in turn drives the push rod 31 to extend into the sample housing 10, so that the push rod 23 abuts against the opposite end face of the ice core 90 inside the soft sleeve 21, pushing the ice core 90 forward. Then, by visual observation, when the other end face of the ice core 90 to be melted contacts the heating plate (heating surface) inside the cover 40, stop the motor 35.

[0052] Then gently pull the soft sleeve 21 so that the part of the soft sleeve 21 inside the sealed cavity is spread out and relatively flat. Then press the cap 40 firmly so that the cap 40 is tightly fastened to the open end of the sample container shell 10, so that the part of the soft sleeve 21 inside the sample container shell 10 together with the cap 40 forms a sealed cavity containing the ice core 90. At this time, a part of the soft sleeve 21 extends out and is sandwiched between the cap 40 and the sample container shell 10, ensuring and improving the sealing performance.

[0053] Then, open the purge valve, purge switch 53, and drain switch 81 to start the purge operation. Helium from the helium storage tank then enters the sealed cavity through the first purge pipe 61 and the second purge pipe 62, and enters the collection bottle 51 through the gas purge pipe 52. This allows high-speed helium (flow rate of 100-150 mL / min) to purge the existing air inside. The purged gas is discharged through the gas inlet pipe 63, ensuring that the sealed cavity containing the ice core 90 is in a pure helium environment.

[0054] After the purging process is complete, turn off the purging switch 53 and adjust the helium gas inlet speed in the first purging tube 61 and the second purging tube 62 to the required flow rate (3-4 mL / min). Simultaneously, start the heating plate and motor 35. Driven by the motor 35 and pulled by the rope 33 and connecting rod 32, the push rod 31 pushes the ice core 90 through the top rod 23 to move it within the sealed cavity at the set melting speed. As the ice core 90 moves towards the heating plate, the soft sleeve 21 moves synchronously with the ice core 90 as the surface to be melted melts (the soft sleeve 21 may deform slightly, but this will not affect the movement). In actual implementation, a stepper motor is preferable for the motor 35, and the speed of the stepper motor should be designed to match the melting speed of the heating plate.

[0055] As the ice core 90 continues to melt, the gas (paleoatmosphere) trapped in the ice is released. Driven by the introduced helium gas, the gas enters the gas analyzer through the gas sampler tube 63 for testing. Meanwhile, the melted water flows into the collection bottle 51 through the drain pipe 80 and is collected.

[0056] Once the ice core 90 has melted to the specified length, one melting process is complete. At this point, the heating plate and motor 35 are turned off, stopping the melting of the ice core 90. Then, the drain switch 81 is turned off, and the water collected in the collection bottle 51 is transferred to other sample bottles. The collection bottle 51 is then reconnected to the drain pipe 80. Next, the purge switch 53 and the vent switch 820 are turned on, and a large flow of inert gas is introduced into the collection bottle 51 to quickly clean the air inside. After cleaning, the drain switch 81 is turned on to start the next melting process, continuing until the entire ice core 90 has melted.

[0057] During the melting process described above, the sealed cavity is not opened again. Only the heating plate and motor are repeatedly started and stopped, and the water sample is transferred. It can be seen that there is no need to process the sample too much, which saves experimental time and ensures the experimental results.

[0058] This invention's device performs experiments on the entire ice core, achieving continuous extraction of gas samples (paleoatmosphere) while simultaneously collecting water samples, thus saving ice core samples and ensuring data continuity and analytical efficiency. During gas sampling, this invention can set the melting rate for a single ice core based on its characteristics (such as the gas content within the ice) obtained from different layers or locations.

[0059] The above description describes the preferred embodiments of the present invention and the technical principles applied thereto. For those skilled in the art, any obvious changes such as equivalent transformations or simple substitutions based on the technical solutions of the present invention, without departing from the spirit and scope of the present invention, shall fall within the protection scope of the present invention.

Claims

1. A device for continuous gas extraction from ice cores and simultaneous water collection, characterized in that, The system includes a sample container, a sample sealing sleeve, a sample pushing mechanism, a cap, and a water collection component. The transparent sample container is rectangular, open at one end and closed at the other. The sample pushing mechanism is installed at the closed end of the sample container. The transparent cap is detachably fastened to the open end of the sample container, and an ice-melting component is installed inside the cap. The sample sealing sleeve includes a transparent plastic sleeve, closed at one end and open at the other. The closed end of the sleeve is placed inside the sample container and connected to the sample pushing mechanism, which moves through the closed end of the sample container. The open end of the sleeve extends outwards... The sample housing is sandwiched between the cap and the sample housing, so that when the cap and the sample housing are fastened together, the portion of the soft sleeve inside the sample housing and the cap can form a sealed cavity for containing the ice core, so that the ice core moves toward the melting component under the pushing action of the sample pushing mechanism and is melted by the melting component; the sample housing and the cap are equipped with purge tubes for introducing inert gas into the sealed cavity, the cap is equipped with a gas inlet tube for discharging the gas released by the ice core, and the cap is equipped with a drain pipe, which is connected to the external water collection component.

2. The apparatus for continuous gas extraction from ice cores and simultaneous water collection as described in claim 1, characterized in that, A base plate is fixed inside the closed end of the soft sleeve, and a top rod is provided on the base plate. The base plate is connected to the sample pushing mechanism.

3. The apparatus for continuous gas extraction from ice cores and simultaneous water collection as described in claim 2, characterized in that, The sample pushing mechanism includes a motor. The output shaft of the motor is connected to one end of a connecting rod via a single pull rope. The other end of the connecting rod is connected to one end of a push rod. The other end of the push rod moves through the closed end of the sample receiving shell and the soft sleeve and is then connected to the substrate.

4. The apparatus for continuous gas extraction from ice cores and simultaneous water collection as described in claim 3, characterized in that, The purge tube includes a first purge tube and a second purge tube, wherein: the push rod is a hollow tube, and the external first purge tube is exposed after passing through the inner cavity of the push rod, the soft sleeve and the substrate; the second purge tube is disposed on the cover; the first purge tube and the second purge tube are connected to the inert gas storage tank through the same purge valve.

5. The apparatus for continuous gas extraction from ice cores and simultaneous water collection as described in claim 1, characterized in that, The ice-melting component is a heating plate, which is installed inside the cover and faces the closed end of the sample accommodating shell.

6. The apparatus for continuous gas extraction from ice cores and simultaneous water collection as described in claim 5, characterized in that, The cap has a slot at the opening, which allows the cap to be tightly engaged with the open end of the sample container.

7. The apparatus for continuous gas extraction from ice cores and simultaneous water collection as described in claim 5, characterized in that, The water collection component includes a conical collection bottle, the mouth of which is detachably screwed to the drain pipe. A gas purging pipe is connected to the bottom of the collection bottle, and a purging switch is provided on the gas purging pipe. A drain switch is installed on the portion of the drain pipe that is exposed outside the cap.

8. The apparatus for continuous gas extraction from ice cores and simultaneous water collection as described in claim 7, characterized in that, The portion of the drain pipe located between its own screw interface and the drain switch is connected to an air outlet pipe, and an air outlet switch is provided on the air outlet pipe.

9. The apparatus for continuous extraction of gas from ice cores and simultaneous collection of water as described in any one of claims 1 to 8, characterized in that, The sample housing is provided with multiple elongated guide strips spaced apart inside, and the length direction of the guide strips is consistent with the direction in which the sample pushing mechanism moves the ice core.

10. A method of using the apparatus for continuous gas extraction from ice cores and simultaneous water collection as described in any one of claims 1 to 9, characterized in that, Including the following steps: 1) Place the cylindrical ice core into the soft sleeve, so that the ice core and the soft sleeve are placed together in the sample receiving shell; 2) Loosen the cap onto the sample housing, wherein a portion of the soft sleeve extends out between the cap and the sample housing; 3) The ice core is moved by the sample pushing mechanism, and the pushing stops when the end of the ice core to be melted is observed to contact the ice melting component. 4) Press the cap to secure it tightly to the sample housing, so that the ice core is in the sealed cavity; 5) Inert gas is introduced into the sealed cavity and the water collection component connected to the sealed cavity to place the ice core in a pure inert gas environment; 6) Stop introducing inert gas into the water collection component, and reduce the flow rate of inert gas continuing to be introduced into the sealed cavity to the sample injection flow rate; 7) The ice-melting component is heated, and the sample pushing mechanism continues to push the ice core to move in the sealed cavity at a set melting speed, so that the end face of the ice core to be melted is continuously melted, and the gas released after the ice core melts is sent into the gas analysis instrument, and the water formed after melting flows into the water collection component. 8) Complete the continuous extraction of gases from ice cores and the synchronous collection of water.

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