System and method for analyzing hydrogen isotope in inclusion water

Abstract

The invention discloses an inclusion water hydrogen isotope analysis system and method, and belongs to the technical field of inclusion analysis, the inclusion water hydrogen isotope analysis system comprises: a plurality of grinding heating assemblies arranged on a base to grind and heat an inclusion sample; the vacuumizing assemblies are connected with the grinding and heating assembly through first connecting pipes so as to vacuumize an inner cavity of the grinding and heating assembly; the gas collecting assemblies are connected with the grinding and heating assembly through second connecting pipes so as to collect gas in the grinding and heating assembly; the gas collecting assembly is connected with a mass spectrometer so as to perform hydrogen isotope analysis on the collected gas; and valves are arranged on the first connecting pipe and the second connecting pipe. According to the device, the inclusion is crushed more uniformly, the inclusion with large particles is prevented from existing, meanwhile, the inclusion is heated more uniformly, and sufficient release of water vapor in the inclusion is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of inclusion analysis, and in particular relates to a system and method for analyzing hydrogen isotopes in inclusion water. Background Art

[0002] The fluid trapped in the inclusion during its growth (which can be called fluid inclusion) preserves various geological and geochemical information of the geological environment at that time (such as temperature, pressure, system composition, pH value, etc.). The material composition in the fluid inclusion is the code for deciphering the relevant geological processes. Therefore, a systematic study of fluid inclusions can obtain information such as the temperature and pressure conditions, chemical composition of the fluid, and source of the fluid during rock formation and mineralization, so as to find out the evolution and role of geological fluids during rock formation and mineralization, and explain the process and conditions of rock formation and mineralization.

[0003] In order to analyze the hydrogen isotopes in the inclusion water, the fluid inclusion sample needs to be ground first. In the prior art, the explosion does not completely break the inclusions, the required temperature is too high, the safety is low, and only inclusions of a fixed size can be ground during grinding, the scope of application is small, and when the inclusions are heated, the heating is uneven, and the inclusions cannot be heated evenly, affecting the accuracy of the analysis. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a system and method for analyzing hydrogen isotopes in inclusion water, which adopts the following technical solutions:

[0005] A system for analyzing hydrogen isotopes in inclusion water, comprising:

[0006] Base;

[0007] A plurality of grinding and heating components, wherein the grinding and heating components are arranged on the base to grind and heat the inclusion sample;

[0008] A plurality of vacuum pumping components, wherein the vacuum pumping components are connected to the grinding and heating components via a first connecting pipe to vacuum the inner cavity of the grinding and heating components;

[0009] A plurality of gas collecting components, wherein the gas collecting components are connected to the grinding and heating components via a second connecting pipe to collect the gas in the grinding and heating components; the gas collecting components are connected to a mass spectrometer to perform hydrogen isotope analysis on the collected gas;

[0010] Wherein, valves are provided on the first connecting pipe and the second connecting pipe; and the plurality of grinding and heating components, the plurality of vacuum components, and the plurality of gas collecting components are connected one by one.

[0011] Further, the grinding and heating assembly includes a first driving member, a second driving member, a third driving member, a rotating shaft, a grinding shell, a first grinding roller, a second grinding roller, a first connecting seat and a second connecting seat; both ends of the grinding shell in the length direction are connected to the base through the first connecting seat and the second connecting seat respectively; the fixed end of the third driving member is connected to the base, and the output end passes through the grinding shell and is connected to the rotating shaft arranged in the grinding shell; a plurality of heating plates are evenly connected to the rotating shaft to heat the ground inclusion sample.

[0012] The first connecting seat and the second connecting seat are respectively arranged at both ends of the grinding shell in the length direction and are both fixedly connected to the outer wall of the grinding shell; a first sliding groove is connected to one end of the grinding shell close to the first connecting seat; a first sliding plate is slidably connected to the first sliding groove; a second sliding groove is connected to one end of the grinding shell close to the second connecting seat; a second sliding plate is slidably connected to the second sliding groove.

[0013] The two first grinding rollers and the second grinding rollers which are arranged in parallel with each other are both arranged in the grinding shell and extend along the length direction of the grinding shell; the first end of the first grinding roller passes through the first sliding plate and the first sliding groove and is respectively rotatably connected to the first sliding groove and the first sliding plate, and the second end passes through the second sliding plate and the second sliding groove and is respectively rotatably connected to the second sliding plate and the second sliding groove; the first end of the second grinding roller passes through the first sliding plate and the first sliding groove and is respectively rotatably connected to the first sliding groove and the first sliding plate, and the second end passes through the second sliding plate and the second sliding groove and is respectively rotatably connected to the second sliding plate and the second sliding groove.

[0014] The first driving member is arranged on the first connecting seat, and the output end of the first driving member sequentially passes through the grinding shell and the first sliding groove and is connected to the second end of the second grinding roller to drive the second grinding roller to rotate; the second driving member is arranged on the second connecting seat, and the output end of the second driving member sequentially passes through the grinding shell and the second sliding groove and is connected to the first end of the first grinding roller to drive the first grinding roller to rotate.

[0015] Further, it further includes a fourth driving member, a lead screw, and a connecting plate; the lead screw is disposed within the second connecting seat and extends along the width direction of the grinding shell; both ends of the lead screw are rotatably connected to the inner wall of the second connecting seat; the fourth driving member is disposed at one end in the width direction of the second connecting seat; the output end of the fourth driving member passes through the second connecting seat and is connected to the lead screw to drive the lead screw to rotate; the bottom of the connecting plate is connected to the nut on the lead screw, and the top is connected to the second driving member; a limiting plate is fixedly connected to one end of the lead screw away from the fourth driving member to limit the connecting plate.

[0016] Further, a grinding cover is disposed on the top of the grinding shell; an inverted horn-shaped opening is disposed within the grinding cover; the small opening end within the grinding cover is connected to the top of the grinding shell and corresponds to the grinding area between the first grinding roller and the second grinding roller.

[0017] Further, the gas collection assembly includes a cold trap, a gas chromatography column, and a gas sample collection tube; the cold trap and the grinding cover are connected through the second connecting tube; the cold trap and the gas chromatography column are connected through the third connecting tube; the gas chromatography column and the gas sample collection tube are connected through the fourth connecting tube; the gas sample collection tube and the vacuum pumping assembly are connected through the fifth connecting tube.

[0018] Further, the second connecting tube and the fifth connecting tube are connected through a sixth connecting tube; the third connecting tube and the fifth connecting tube are connected through a seventh connecting tube.

[0019] Further, valves are disposed on the first connecting tube, the second connecting tube, the third connecting tube, the fourth connecting tube, the fifth connecting tube, the sixth connecting tube, and the seventh connecting tube.

[0020] Further, a vacuum gauge is disposed on the fifth connecting tube.

[0021] Further, an analysis method for an inclusion water hydrogen isotope analysis system is the analysis method for the inclusion water hydrogen isotope analysis system described in any one of the above, and the method includes the following steps:

[0022] S1. Adjust the position of the connecting plate inside the second connecting seat on the lead screw according to the size of the inclusion sample to adjust the grinding distance between the first grinding roller and the second grinding roller. After adjustment, open the grinding cover of the grinding shell. Place the chromium powder in the grinding shell, then place the sample in the grinding shell, close the grinding cover, open the valves on the first connecting pipe, the second connecting pipe, the third connecting pipe and the fourth connecting pipe, and start the vacuum pumping assembly to pump the air in the grinding shell. After pumping the vacuum, close all the valves, start the first driving part and the second driving part, make the first grinding roller and the second grinding roller rotate, and grind the inclusion sample through the grinding area between the first grinding roller and the second grinding roller. The ground sample falls to the bottom of the grinding shell.

[0023] S2. Start the third driving part, the rotating shaft drives the heating plate to rotate. The heating plate heats and stirs the ground inclusion sample. At the same time, open the valve on the second connecting pipe. The heating plate heats the water sample in the heated inclusion sample. The water sample is heated to release water vapor and undergoes a cracking reaction to generate a mixed gas containing hydrogen.

[0024] S3. The mixed gas enters the cold trap through the second connecting pipe. After condensing the mixed gas, close the valve on the second connecting pipe, open the valve on the sixth connecting pipe. By pumping the cold trap, after pumping the vacuum, close the valve on the sixth connecting pipe and open the valves on the third connecting pipe and the fourth connecting pipe. Heat the cold trap to separate hydrogen from the mixed gas through the gas chromatographic column and enter the gas collection pipe.

[0025] S3. Introduce the gas in the gas collection pipe into the mass spectrometer to analyze the hydrogen isotope of the gas.

[0026] Advantageous effects:

[0027] For an inclusion water hydrogen isotope analysis system provided by the present invention, the distance between the first grinding roller and the second grinding roller is adjustable, and inclusion samples of different sizes can be ground, breaking the inclusions to make the breaking of the inclusions more uniform, preventing the existence of large particle inclusions. At the same time, the heating plate stirs and heats the ground inclusions, making the inclusions heat more evenly, accelerating the reaction rate, and ensuring the full release of water vapor in the inclusions; each grinding shell can work simultaneously, and independent vacuum pumps and gas collection pumps are provided on both the inner and outer sides of each grinding shell, which can separately pump the vacuum of the inner cavity of the grinding shell and collect the inclusion gas. The gas collection and analysis of the inner cavities of different grinding shells do not interfere with each other, improving the accuracy of the experiment. Description of the drawings

[0028] Figure 1 It is a schematic diagram of the overall structure of the inclusion water hydrogen isotope analysis system of the present invention;

[0029] Figure 2Schematic diagram of the overall structure of the grinding device of the hydrogen isotope analysis system for inclusions in water according to the present invention;

[0030] Figure 3 Side view of the grinding device of the grinding shell of the hydrogen isotope analysis system for inclusions in water according to the present invention;

[0031] Figure 4 Schematic diagram of the internal structure of the grinding assembly of the grinding shell of the hydrogen isotope analysis system for inclusions in water according to the present invention Figure 1 ;

[0032] Figure 5 Schematic diagram of the internal structure of the grinding assembly of the grinding shell of the hydrogen isotope analysis system for inclusions in water according to the present invention Figure 2 ;

[0033] Figure 6 Top view of the internal structure of the grinding assembly of the grinding shell of the hydrogen isotope analysis system for inclusions in water according to the present invention;

[0034] Figure 7 is Figure 6 Cross-sectional view in the A-A direction of

[0035] Wherein, 1, base; 2, first driving member; 3, second driving member; 4, third driving member; 5, rotating shaft; 6, heating plate; 7, first grinding roller; 8, second grinding roller; 9, first connecting seat; 10, second connecting seat; 11, first sliding groove; 12, first sliding plate; 13, second sliding groove; 14, second sliding plate; 15, fourth driving member; 16, lead screw; 17, connecting plate; 18, grinding cover; 19, cold trap; 20, gas chromatograph column; 21, first connecting pipe; 22, second connecting pipe; 23, third connecting pipe; 24, fourth connecting pipe; 25, fifth connecting pipe; 26, sixth connecting pipe; 27, seventh connecting pipe; 28, gas sample collection pipe; 29, valve; 30, vacuum gauge; 31, grinding shell; 32, grinding heating device; 33, vacuum pumping assembly; 34, limiting plate. Detailed implementation manners

[0036] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, the following specifically gives the detailed implementation manners of the present invention.

[0037] Example 1

[0038] Referring to Figures 1 to 7 , a hydrogen isotope analysis system for inclusions in water includes:

[0039] Base 1;

[0040] Multiple grinding and heating components 32 are arranged on the base 1 to grind and heat the inclusion sample;

[0041] Multiple vacuum pumping components 33 are connected to the grinding and heating components 32 through a first connecting pipe 21 to evacuate the inner cavity of the grinding and heating components 32;

[0042] Multiple gas collection components are connected to the grinding and heating components 32 through a second connecting pipe 22 to collect the gas in the grinding and heating components 32; A mass spectrometer is connected to the gas collection components to perform hydrogen isotope analysis on the collected gas;

[0043] Among them, valves 29 are arranged on both the first connecting pipe 21 and the second connecting pipe 22; The multiple grinding and heating components 32, the multiple vacuum pumping components 33, and the multiple gas collection components are connected in one-to-one correspondence.

[0044] Among them, the vacuum pumping component 33 includes a vacuum pump.

[0045] In this embodiment, the grinding and heating component 32 includes a first driving member 2, a second driving member 3, a third driving member 4, a rotating shaft 5, a grinding shell 31, a first grinding roller 7, a second grinding roller 8, a first connecting seat 9, and a second connecting seat 10; Both ends of the grinding shell 31 in the length direction are connected to the base 1 through the first connecting seat 9 and the second connecting seat 10 respectively; The third driving member 4 is arranged at the bottom of the grinding shell 31, the fixed end of the third driving member 4 is connected to the base 1, and the output end passes through the grinding shell 31 and is connected to the rotating shaft 5 arranged inside the grinding shell 31; A plurality of heating plates 6 are evenly connected to the rotating shaft 5 to heat the ground inclusion sample;

[0046] The first connecting seat 9 and the second connecting seat 10 are respectively arranged at both ends of the grinding shell 31 in the length direction and are both fixedly connected to the outer wall of the grinding shell 31; One end of the grinding shell 31 close to the first connecting seat 9 is connected with a first sliding groove 11; A first sliding plate 12 is slidably connected to the first sliding groove 11; One end of the grinding shell 31 close to the second connecting seat 10 is connected with a second sliding groove 13; A second sliding plate 14 is slidably connected to the second sliding groove 13;

[0047] Among them, one end of the second connecting seat 10 far from the first grinding roller 7 is detachably connected to the grinding shell 31;

[0048] The first grinding roller 7 and the second grinding roller 8 which are arranged in parallel with each other are both arranged in the grinding shell 31 and extend along the length direction of the grinding shell 31; the first end of the first grinding roller 7 passes through the first sliding plate 12 and the first sliding groove 11 and is rotatably connected to the first sliding groove 11 and the first sliding plate 12 respectively, and the second end passes through the second sliding plate 14 and the second sliding groove 13 and is rotatably connected to the second sliding plate 14 and the second sliding groove 13 respectively; the first end of the second grinding roller 8 passes through the first sliding plate 12 and the first sliding groove 11 and is rotatably connected to the first sliding groove 11 and the first sliding plate 12 respectively, and the second end passes through the second sliding plate 14 and the second sliding groove 13 and is rotatably connected to the second sliding plate 14 and the second sliding groove 13 respectively;

[0049] The first driving member 2 is arranged on the first connecting seat 9, and the output end of the first driving member 2 passes through the grinding shell 31 and the first sliding groove 11 in sequence and is connected to the second end of the second grinding roller 8 to drive the second grinding roller 8 to rotate; the second driving member 3 is arranged on the second connecting seat 10, and the output end of the second driving member 3 passes through the grinding shell 31 and the second sliding groove 13 in sequence and is connected to the first end of the first grinding roller 7 to drive the first grinding roller 7 to rotate.

[0050] In this embodiment, it further includes a fourth driving member 15, a lead screw 16 and a connecting plate 17; the lead screw 16 is arranged in the second connecting seat 10 and extends along the width direction of the grinding shell 31; both ends of the lead screw 16 are rotatably connected to the inner wall of the second connecting seat 10 respectively; the fourth driving member 15 is arranged at one end of the second connecting seat 10 in the width direction; the output end of the fourth driving member 15 passes through the second connecting seat 10 and is connected to the lead screw 16 to drive the lead screw 16 to rotate; the bottom of the connecting plate 17 is connected to the nut on the lead screw 16, and the top is connected to the second driving member 3; a limiting plate 34 is fixedly connected to one end of the lead screw 16 far away from the fourth driving member 15 to limit the connecting plate 17 and restrict the movement of the first grinding roller 7 on the lead screw 16.

[0051] Through the above technical solution, the first grinding roller 7 is driven by the fourth driving member 15 and the lead screw 16 to move away from or close to the second grinding roller 8, and the grinding distance between the first grinding roller 7 and the second grinding roller 8 is adjusted to adapt to inclusions samples of different sizes, and the applicable range is wider.

[0052] In this embodiment, a grinding cover 18 is arranged on the top of the grinding shell 31; an inverted trumpet-shaped opening is arranged in the grinding cover 18; the small opening end in the grinding cover 18 is connected to the top of the grinding shell 31 and is correspondingly arranged with the grinding area between the first grinding roller 7 and the second grinding roller 8.

[0053] In this embodiment, the gas collection assembly includes a cold trap 19, a gas chromatography column 20, and a gas sample collection tube 28; the cold trap 19 and the grinding cover 18 are connected by a second connecting tube 22; the cold trap 19 and the gas chromatography column 20 are connected by a third connecting tube 23; the gas chromatography column 20 and the gas sample collection tube 28 are connected by a fourth connecting tube 24; the gas sample collection tube 28 and the vacuum pumping assembly 33 are connected by a fifth connecting tube 25.

[0054] In this embodiment, the second connecting tube 22 and the fifth connecting tube 25 are connected by a sixth connecting tube 26; the third connecting tube 23 and the fifth connecting tube 25 are connected by a seventh connecting tube 27.

[0055] In this embodiment, valves 29 are provided on the first connecting tube 21, the second connecting tube 22, the third connecting tube 23, the fourth connecting tube 24, the fifth connecting tube 25, the sixth connecting tube 26, and the seventh connecting tube 27.

[0056] In this embodiment, a vacuum gauge 30 is provided on the fifth connecting tube 25.

[0057] Through the above technical solution, there is no need to burst the inclusions at high temperature. After the first grinding roller 7 and the second grinding roller 8 crush and grind the inclusions, the inclusions are heated and stirred. Chromium powder is placed in the grinding shell 31, and the inclusions and chromium powder are fully mixed by the heating plate 6, making the heating of both more uniform, enabling both to react fully while accelerating the reaction rate, being more convenient to operate, and improving safety.

[0058] Embodiment 2

[0059] An analysis method of an inclusion water hydrogen isotope analysis system, which is the analysis method of the inclusion water hydrogen isotope analysis system provided in Embodiment 1. The method includes the following steps:

[0060] S1. Adjust the position of the connecting plate 17 in the second connecting seat 10 on the lead screw 16 according to the size of the inclusion sample to adjust the grinding distance between the first grinding roller 7 and the second grinding roller 8. After adjustment, open the grinding cover 18 of the grinding shell 31. After placing the chromium powder in the grinding shell 31, place the sample in the grinding shell 31, close the grinding cover 18, open the valves 29 on the first connecting tube 21, the second connecting tube 22, the third connecting tube 23, and the fourth connecting tube 24, and start the vacuum pump in the vacuum pumping assembly 33 to evacuate the grinding shell 31; observe the vacuum gauge 30. After evacuation, close all the valves 29, start the first driving member 2 and the second driving member 3 to rotate the first grinding roller 7 and the second grinding roller 8, and grind the inclusion sample through the grinding area between the first grinding roller 7 and the second grinding roller 8. The ground sample falls to the bottom of the grinding shell 31.

[0061] S2. Start the third driving member 4, the rotating shaft 5 drives the heating plate 6 to rotate, the heating plate 6 heats and stirs the ground inclusion sample, and at the same time, open the valve 29 on the second connecting pipe 22. The heating plate 6 heats the water sample in the heated inclusion sample, and the water sample is heated to release water vapor and undergoes a cracking reaction to generate a mixed gas containing hydrogen;

[0062] S3. The mixed gas enters the cold trap 19 through the second connecting pipe 22. After condensing the mixed gas, close the valve 29 on the second connecting pipe 22, open the valve 29 on the sixth connecting pipe 26. By evacuating the cold trap 19, after the evacuation is completed, close the valve 29 on the sixth connecting pipe 26 and open the valves 29 on the third connecting pipe 23 and the fourth connecting pipe 24. Heat the cold trap 19, and the mixed gas is separated into hydrogen by the gas chromatography column 20 and then enters the gas collection tube;

[0063] S3. Introduce the gas in the gas collection tube into the mass spectrometer to perform hydrogen isotope analysis on the gas.

[0064] As described above, it is only a preferred embodiment of the present invention, and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still belong to the scope of the technical solution of the present invention.

Claims

1. A system for analyzing hydrogen isotopes in inclusion water, characterized in that: include: Base; A plurality of grinding and heating components, wherein the grinding and heating components are arranged on the base to grind and heat the inclusion sample; A plurality of vacuum pumping components, wherein the vacuum pumping components are connected to the grinding and heating components via a first connecting pipe to vacuum the inner cavity of the grinding and heating components; A plurality of gas collecting components, wherein the gas collecting components are connected to the grinding and heating components via a second connecting pipe to collect the gas in the grinding and heating components; the gas collecting components are connected to a mass spectrometer to perform hydrogen isotope analysis on the collected gas; Wherein, valves are provided on the first connecting pipe and the second connecting pipe; and the plurality of grinding and heating components, the plurality of vacuum components, and the plurality of gas collecting components are connected one by one.

2. The hydrogen isotope analysis system in inclusion water according to claim 1, characterized in that: The grinding and heating assembly comprises a first driving member, a second driving member, a third driving member, a rotating shaft, a grinding shell, a first grinding roller, a second grinding roller, a first connecting seat and a second connecting seat; both ends of the grinding shell in the length direction are connected to the base through the first connecting seat and the second connecting seat respectively; the fixed end of the third driving member is connected to the base, and the output end passes through the grinding shell and is connected to the rotating shaft arranged in the grinding shell; a plurality of heating plates are evenly connected to the rotating shaft to heat the inclusion sample after grinding; A first sliding groove is connected to one end of the grinding shell near the first connecting seat; a first sliding plate is slidably connected to the first sliding groove; a second sliding groove is connected to one end of the grinding shell near the second connecting seat; a second sliding plate is slidably connected to the second sliding groove; The first grinding roller and the second grinding roller, two rollers arranged in parallel with each other, are both arranged in the grinding shell and extend along the length direction of the grinding shell; the first end of the first grinding roller passes through the first sliding plate and the first sliding groove, and is rotatably connected to the first sliding groove and the first sliding plate respectively, and the second end passes through the second sliding plate and the second sliding groove, and is rotatably connected to the second sliding plate and the second sliding groove respectively; the first end of the second grinding roller passes through the first sliding plate and the first sliding groove, and is rotatably connected to the first sliding groove and the first sliding plate respectively, and the second end passes through the second sliding plate and the second sliding groove, and is rotatably connected to the second sliding plate and the second sliding groove respectively; The first driving member is arranged on the first connecting seat, and the output end of the first driving member passes through the grinding shell and the first sliding groove in sequence, and is connected to the second end of the second grinding roller to drive the second grinding roller to rotate; the second driving member is arranged on the second connecting seat, and the output end of the second driving member passes through the grinding shell and the second sliding groove in sequence, and is connected to the first end of the first grinding roller to drive the first grinding roller to rotate.

3. The hydrogen isotope analysis system in inclusion water according to claim 2, characterized in that: It also includes a fourth driving member, a screw rod and a connecting plate; the screw rod is arranged in the second connecting seat and extends along the width direction of the grinding shell; the two ends of the screw rod are rotatably connected to the inner wall of the second connecting seat respectively; the fourth driving member is arranged at one end in the width direction of the second connecting seat; the output end of the fourth driving member passes through the second connecting seat and is connected to the screw rod to drive the screw rod to rotate; the bottom of the connecting plate is connected to the nut on the screw rod, and the top is connected to the second driving member; the end of the screw rod away from the fourth driving member is fixedly connected to a limiting plate to limit the connecting plate.

4. The system for analyzing hydrogen isotopes in inclusion water according to claim 2, characterized in that: A grinding cover is arranged on the top of the grinding shell; an inverted trumpet-shaped opening is arranged in the grinding cover; the small opening end in the grinding cover is connected to the top of the grinding shell and is arranged corresponding to the grinding area between the first grinding roller and the second grinding roller.

5. The system for analyzing hydrogen isotopes in inclusion water according to claim 4, characterized in that: The gas collection component includes a cold hydrazine, a gas chromatography column and a gas sample collection tube; the cold hydrazine and the grinding cover are connected via the second connecting tube; the cold hydrazine and the gas chromatography column are connected via a third connecting tube; the gas chromatography column and the gas sample collection tube are connected via a fourth connecting tube; the gas sample collection tube and the vacuum assembly are connected via a fifth connecting tube.

6. The system for analyzing hydrogen isotopes in inclusion water according to claim 5, characterized in that: The second connecting pipe and the fifth connecting pipe are connected via a sixth connecting pipe; the third connecting pipe and the fifth connecting pipe are connected via a seventh connecting pipe.

7. The system for analyzing hydrogen isotopes in inclusion water according to claim 6, characterized in that: The first connecting pipe, the second connecting pipe, the third connecting pipe, the fourth connecting pipe, the fifth connecting pipe, the sixth connecting pipe and the seventh connecting pipe are all provided with valves.

8. The system for analyzing hydrogen isotopes in inclusion water according to claim 7, characterized in that: The fifth connecting pipe is provided with a vacuum gauge.

9. An analysis method for hydrogen isotope analysis system in inclusion water, characterized in that: The analysis method of the hydrogen isotope analysis system in inclusion water according to any one of claims 1 to 8, the method comprising the following steps: S1. According to the size of the inclusion sample, the position of the connecting plate in the second connecting seat on the screw is adjusted to adjust the grinding distance between the first grinding roller and the second grinding roller. After the adjustment, the grinding cover of the grinding shell is opened, the chromium powder is placed in the grinding shell, the sample is placed in the grinding shell, the grinding cover is closed, the valves on the first connecting pipe, the second connecting pipe, the third connecting pipe and the fourth connecting pipe are opened, and the vacuum assembly is started to vacuum the grinding shell; after the vacuum is exhausted, all valves are closed, the first driving member and the second driving member are started to rotate the first grinding roller and the second grinding roller, and the inclusion sample is ground through the grinding area between the first grinding roller and the second grinding roller, and the ground sample falls into the bottom of the grinding shell; S2, start the third driving member, the rotating shaft drives the heating plate to rotate, the heating plate heats and stirs the ground inclusion sample, and at the same time, the valve on the second connecting pipe is opened, the heating plate heats the water sample in the inclusion sample, the water sample is heated to release water vapor and cracks it to generate a mixed gas containing hydrogen; S3, the mixed gas enters the cold hydrazine through the second connecting pipe, closes the valve on the second connecting pipe after condensing the mixed gas, opens the valve on the sixth connecting pipe, vacuumizes the cold hydrazine, closes the valve on the sixth connecting pipe and opens the valves on the third connecting pipe and the fourth connecting pipe after vacuuming, heats the cold hydrazine, and separates hydrogen from the mixed gas through the gas chromatography column and enters the gas collection pipe; S3. Introducing the gas in the gas collection tube into a mass spectrometer to perform hydrogen isotope analysis on the gas.

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