X-ray diffractometer high temperature in-situ detection device

Abstract

The application discloses an X-ray diffractometer high-temperature in-situ detection device, a base lifting assembly is installed on the diffractometer, a tank body assembly rear end is connected with a lifting pad in the base lifting assembly, and a tank body assembly front end is connected with an upper cover in a tank body cover assembly; a heat preservation cavity assembly is arranged in the tank body assembly; a heating chamber assembly is arranged in the heat preservation cavity assembly, and a connecting pipe at a tail of the heating chamber assembly is connected with a gas distribution connector in the tank body cover assembly; sample entering holes for sample passing are arranged at lower ends of the tank body assembly and the heat preservation cavity assembly; the tank body and the tank body cover are provided with cooling water channels; a sample holder assembly is fixed at the tank body assembly lower end, and a measured sample is placed in a sample holder in the sample holder assembly and is sent into the heating chamber assembly; the application has novel structure, stable performance and convenient use, and greatly improves the temperature range of the heating chamber. Since the heat preservation cavity is in a sealed form, the heating speed is fast, and heat preservation is long-lasting.

Description

TECHNICAL FIELD

[0001] The application relates to an X-ray diffractometer, in particular to an X-ray diffractometer high-temperature in-situ detection device. BACKGROUND

[0002] At present, with the continuous development of new materials, more and more new materials are applied to various fields. In the field of X-ray diffraction, many new materials need to be heated at high temperature, and the changes of crystal structure can be studied under different temperature conditions. The current X-ray diffractometer high-temperature detection equipment has limited detection capacity, and cannot meet the increasing detection requirements of some materials with special requirements for ultra-high temperature sample detection. It is urgent to upgrade and reform the X-ray diffractometer high-temperature detection device to meet the increasing detection requirements. SUMMARY

[0003] In view of the problems of the current X-ray diffractometer high-temperature environment sample detection, such as the heating temperature of the sample not meeting the requirements, the heating speed being slow, and the heat preservation effect being poor, the application discards the traditional way of using a Peltier plate to heat the sample in the X-ray diffractometer high-temperature environment, and performs a reform on the existing X-ray diffractometer high-temperature detection device.

[0004] The technical scheme adopted by the application is as follows:

[0005] An X-ray diffractometer high-temperature in-situ detection device, comprising a heating chamber assembly, a heat preservation cavity assembly, a tank body assembly, a tank body cover assembly, a sample holder assembly and a base lifting assembly;

[0006] The base lifting assembly is installed on the diffractometer, the rear end of the tank body assembly is connected with a lifting pad in the base lifting assembly, and the front end of the tank body assembly is connected with an upper cover in the tank body cover assembly; the heat preservation cavity assembly is arranged in the tank body assembly; the heating chamber assembly is arranged in the heat preservation cavity assembly, and a connecting pipe at the tail of the heating chamber assembly is connected with a gas distribution connector in the tank body cover assembly; the lower ends of the tank body assembly and the heat preservation cavity assembly are provided with sample entering holes for the sample to pass through; the tank body and the tank body cover are provided with cooling water channels; the sample holder assembly is fixed at the lower end of the tank body assembly, and the sample to be measured is placed in a sample holder in the sample holder assembly and sent into the interior of the heating chamber assembly.

[0007] The heating chamber assembly comprises a heating shell, an armored electric heating wire, a fixing clamp, a connecting pipe and an ambient temperature thermocouple; the armored electric heating wire is arranged in the interior of the heating shell, the armored electric heating wire is fixed in the interior of the heating shell by the fixing clamps, a connecting pipe is welded at the tail of the heating shell, and an ambient temperature thermocouple for measuring the ambient temperature is arranged in the connecting pipe; the positive and negative poles of the armored electric heating wire are also led out of the connecting pipe; and the heating shell is provided with a sample entering hole for the sample to pass through.

[0008] The heat preservation cavity assembly comprises a heat preservation shell A, a beryllium sheet A, a heat preservation shell B, a beryllium sheet B and connecting columns; the beryllium sheet A is installed on the upper part of the heat preservation shell A, the heat preservation shell B is installed inside the heat preservation shell A, the beryllium sheet B is installed on the upper part of the heat preservation shell B, and the front end of the heat preservation shell A is welded with the three connecting columns; the heat preservation cavity assembly is fixed inside the tank body through the connecting columns.

[0009] The tank body assembly comprises a tank body, window covers, a window sealing film, guide columns, a water inlet joint A, a water outlet joint A and a tank body air inlet pipe two; two window covers are installed on the upper part of the tank body, and the window sealing film is clamped between the tank body and the window covers to ensure the sealing of the tank body while ensuring the entry of the rays; two guide columns are installed on the lower part of the tank body, the tank body is internally provided with a water channel, the water channel is provided with the water inlet joint A and the water outlet joint A, and the cooling of water when used ensures that the tank body is in a cooling state at all times during high-temperature use; the tank body air inlet pipe two is installed inside the tank body and connected with the air outlet joint two in the tank body cover assembly, and the entering gas can enter the most central position of the tank body.

[0010] The tank body cover assembly comprises an upper cover, a water channel cover plate, a water channel column, a water channel sleeve, a gas distribution joint, a junction box, a pressure relief valve, a total air inlet joint, an air outlet joint one, an air outlet joint two, a water inlet joint B, a water outlet joint B, a heat insulation plate A and a heat insulation plate B; the upper cover and the water channel cover plate are welded together, the inner hole of the upper cover is welded with the water channel column, the outer side of the water channel column is welded with the water channel sleeve, the end of the water channel sleeve is welded with the gas distribution joint, the gas distribution joint is connected with the junction box; the end of the upper cover is provided with the pressure relief valve, the gas distribution joint is welded with the total air inlet joint, the air outlet joint one and the air outlet joint two; the water inlet joint B is arranged on the water channel cover plate, and the water outlet joint B is arranged on the water channel sleeve; the cooling water flows into the water inlet joint B, passes through the upper cover, the water channel column and the water channel sleeve and flows out of the water outlet joint B, so that the tank body cover assembly is kept in a cooling state at all times; the other end of the upper cover is connected with the heat insulation plate A, and the heat insulation plate B is connected with the heat insulation plate A.

[0011] The sample holder assembly comprises a sample holder, a heat preservation cover, a lower cover, a guide sleeve, hand nuts, a support, a locking nut, a sample holder air inlet pipe one and a sample stage thermocouple; the sample holder, the heat preservation cover and the support are connected together, the support is installed inside the lower cover and fixed by the locking nut; the lower part of the lower cover is welded with the sample holder air inlet pipe one, which is connected with the air outlet joint one in the tank body cover assembly, and the entering gas can enter the position of the sample holder; the sample stage thermocouple for measuring the sample temperature is installed at the rear of the lower cover; the heat preservation cover corresponds to the sample inlet hole; the guide sleeve cooperates with the guide column on the tank body assembly, and the four hand nuts in the sample holder assembly connect the sample holder assembly with the tank body assembly.

[0012] The base lifting assembly includes a base, cross roller guides, a lifting pad, a clamping block, and a micrometer head; two cross roller guides are installed on the base, and the cross roller guides correspond to the guide grooves of the lifting pad. A clamping block is installed below the base, and the clamping block is provided with screw holes. The micrometer head is screwed into the screw holes, and the top rod of the micrometer head abuts against the lower end of the lifting pad.

[0013] The armored heating wire is coiled inside the heating housing according to the internal shape of the heating housing, so that the entire interior of the heating housing is evenly covered with armored heating wire except for the light inlet hole and the sample inlet hole.

[0014] The insulation cavity assembly has beryllium plates A and B at the window. The beryllium plates do not affect the entry of X-rays, and at the same time make the insulation cavity assembly a sealed environment, which plays a role in heat preservation.

[0015] The tank inlet pipe 2 in the tank assembly and the sample rack inlet pipe 1 in the sample rack assembly can bring gas into the tank assembly and the sample rack assembly; these gases are inert gases, which have a protective effect on the samples; they can also be liquid nitrogen, etc., which can cool the heating chamber assembly.

[0016] The tank assembly and the tank cover assembly are equipped with water channels to ensure that the tank assembly and the tank cover assembly are always in a cooled state during high-temperature use.

[0017] The sample is inserted into the tank from the bottom of the tank assembly by inserting the sample holder assembly into the tank.

[0018] The present invention has the following beneficial effects and advantages:

[0019] 1. Innovative structure, abandoning traditional concepts, with an attractive appearance, stable performance, and easy use;

[0020] 2. It abandons the traditional platinum plate heating method and adopts armored electric heating wire as the heating element, which is more sensitive to temperature, improving not only the detection accuracy but also the controllable temperature range of the heating chamber;

[0021] 3. Because the insulation cavity is sealed, the heating speed is fast and the insulation effect is good;

[0022] 4. Two thermocouples are used to sense the temperature; one thermocouple records the temperature of the heating wire, and the other thermocouple records the temperature of the heating chamber, thus ensuring more accurate heating temperature.

[0023] 5. Meets the testing requirements for samples stored in high-temperature environments (above 1000 degrees Celsius);

[0024] 6. Samples are inserted into the tank from the bottom of the tank assembly via the sample holder assembly, which facilitates sample insertion and improves testing efficiency;

[0025] 7. The tank body and tank cover are equipped with cooling water to ensure that the operator will not be scalded;

[0026] Meanwhile, inert gas can be introduced into the container to protect the sample; Attached Figure Description

[0027] Figure 1 This is a cross-sectional view of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram showing the positional relationship between the device and the diffractometer;

[0029] Figure 3 for Figure 1 The right view;

[0030] Figure 4 for Figure 1 Top view;

[0031] Figure 5 This is a schematic diagram of the heating chamber assembly;

[0032] Figure 6 for Figure 5 A bottom view;

[0033] Figure 7 for Figure 5 AA section view;

[0034] Figure 8 for Figure 5 BB section view;

[0035] Figure 9 This is a top view of the insulation cavity assembly;

[0036] Figure 10 for Figure 9 AA section view;

[0037] Figure 11 for Figure 10 A bottom view;

[0038] Figure 12 This is a front view of the tank assembly;

[0039] Figure 13 for Figure 12 The left view;

[0040] Figure 14 for Figure 12 Top view;

[0041] Figure 15 This is a front view of the tank cover assembly;

[0042] Figure 16 for Figure 15 Left sectional view;

[0043] Figure 17 This is a front view of the sample holder assembly;

[0044] Figure 18 for Figure 17 Left sectional view;

[0045] Figure 19 This is a front view of the base lifting assembly;

[0046] Figure 20 for Figure 19 Draw a sectional view at position AA;

[0047] Among them, 1 is the heating chamber assembly, 101 is the heating shell, 102 is the armored electric heating wire, 103 is the fixing clamp, 104 is the connecting pipe, and 105 is the ambient temperature thermocouple; 2 is the insulation cavity assembly, 201 is the insulation shell A, 202 is the beryllium plate A, 203 is the insulation shell B, 204 is the beryllium plate B, and 205 is the connecting column; 3 is the tank assembly, 301 is the tank body, 302 is the window cover, 303 is the window sealing film, 304 is the guide column, 305 is the water inlet connector A, 306 is the water outlet connector A, and 307 is the tank body air inlet pipe II; 4 is the tank cover assembly, 401 is the top cover, 402 is the water channel cover plate, 403 is the water channel column, 404 is the water channel outer sleeve, 405 is the air distribution connector, and 40... 6 is the junction box, 407 is the pressure relief valve, 408 is the main air inlet connector, 409 is the first air outlet connector, 410 is the second air outlet connector, 411 is the water inlet connector B, 412 is the water outlet connector B, 413 is the heat insulation plate A, and 414 is the heat insulation plate B; 5 is the sample rack assembly, 501 is the sample rack, 502 is the insulation cover, 503 is the lower cover, 504 is the guide sleeve, 505 is the hand-tightening nut, 506 is the bracket, 507 is the locking nut, 508 is the first air inlet pipe of the sample rack, and 509 is the thermocouple of the sample stage; 6 is the base lifting assembly, 601 is the base, 602 is the cross roller guide rail, 603 is the lifting pad, 604 is the clamping block, and 605 is the micrometer head; 7 is the sample to be tested; 8 is the diffractometer. Detailed Implementation

[0048] The present invention will now be further described with reference to the accompanying drawings.

[0049] like Figures 1-4 As shown, a high-temperature in-situ detection device for X-ray diffractometer includes a heating chamber assembly 1, a heat preservation cavity assembly 2, a tank assembly 3, a tank cover assembly 4, a sample rack assembly 5, and a base lifting assembly 6.

[0050] The base lifting assembly 6 is mounted on the diffractometer 8, and the rear end of the tank assembly 3 ( Figure 1 The left side) is connected to the lifting pad 603 in the base lifting assembly 6, and the front end of the tank assembly 3 ( Figure 1The right side of the sample rack assembly 3 is connected to the upper cover 401 in the tank cover assembly 4; the insulation chamber assembly 2 is set inside the tank assembly 3 via the connecting post 205; the heating chamber assembly 1 is set inside the insulation chamber assembly 2, and the connecting pipe 104 at the tail of the heating chamber assembly 1 is connected to the gas distribution connector 405 in the tank cover assembly; both the tank assembly 3 and the insulation chamber assembly 2 are provided with sample inlet holes 100 for sample passage at their lower ends; the sample rack assembly 6 is fixed to the lower end of the tank assembly 3, and the sample to be tested 7 is placed in the sample rack 501 in the sample rack assembly and sent into the interior of the heating chamber assembly 2. The sample rack assembly 5 has two guide sleeves 504 that slide in cooperation with the two guide posts 304 at the lower end of the tank assembly 3, positioning the tank assembly 3 and the sample rack assembly 5 vertically, and connecting the sample rack assembly 5 and the tank assembly 3 by the four hand-tightening nuts 505 in the sample rack assembly 5.

[0051] like Figures 5-8 As shown, the heating chamber assembly 1 includes a heating housing 101, an armored electric heating wire 102, a fixing clamp 103, a connecting pipe 104, and an ambient temperature thermocouple 105. A light inlet 200 is provided at the top of the heating housing 101. An armored electric heating wire 102 is installed inside the heating housing 101 and is fixed inside the heating housing 101 by multiple fixing clamps 103. A connecting pipe 104 is welded to the tail of the heating housing 101, and an ambient temperature thermocouple 105 for measuring the ambient temperature is installed inside the connecting pipe 104. Simultaneously, the positive and negative wires of the armored electric heating wire 102 are led out to the outside along the connecting pipe 104.

[0052] like Figures 9-11 As shown, the insulation cavity assembly 2 includes an insulation shell A201, a beryllium plate A202, an insulation shell B203, a beryllium plate B204, and connecting posts 205; wherein the beryllium plate A202 is installed on the upper part of the insulation shell A201, the insulation shell B203 is installed inside the insulation shell A201, the beryllium plate B204 is installed on the upper part of the insulation shell B203, and three connecting posts 205 are welded to the front end of the insulation shell A201.

[0053] like Figures 12-14As shown, the tank assembly 3 includes a tank body 301, window covers 302, window sealing membrane 303, guide pillars 304, water inlet connector A305, water outlet connector A306, and tank air inlet pipe 307. Two window covers 302 are installed on top of the tank body 301, with a window sealing membrane 303 sandwiched between the tank body 301 and the window covers 302, ensuring the airtightness of the entire tank body 301 while allowing radiation to enter. Two guide pillars 304 are installed at the bottom of the tank body 301. A water inlet connector A305 and a water outlet connector A306 are located at the rear of the tank body 301, one for water inlet and one for water outlet. Water channels are provided inside the tank body 301, and water cooling ensures that the tank body 301 remains cooled during high-temperature operation. An air inlet pipe 307 is installed inside the tank 301. It is connected to the air outlet connector 410 in the tank cover assembly 4, allowing the incoming gas to reach the center of the tank 301.

[0054] like Figures 15-16 As shown, the tank cover assembly 4 includes an upper cover 401, a water channel cover plate 402, a water channel column 403, a water channel outer sleeve 404, a gas distributor 405, a junction box 406, a pressure relief valve 407, a main air inlet 408, a first air outlet 409, a second air outlet 410, a water inlet B411, a water outlet B412, a heat insulation plate A413, and a heat insulation plate B414. The upper cover 401 is welded to the water channel cover plate 402. The water channel column 403 is welded to the inner hole of the upper cover 401, and the water channel outer sleeve 404 is welded to the outer side of the water channel column 403. The gas distributor 405 is welded to the end of the water channel outer sleeve 404 and is connected to the junction box 406. A pressure relief valve 407 is provided at the end of the upper cover 401, and the main air inlet 408, the first air outlet 409, and the second air outlet 410 are welded to the gas distributor 405. The water channel cover 402 is equipped with a water inlet connector B411, and the water channel outer sleeve 404 is equipped with a water outlet connector B412. Cooling water flows in from the water inlet connector B411, passes through the upper cover 401, the water channel column 403, and the water channel outer sleeve 404, and flows out from the water outlet connector B412, ensuring that the entire tank cover assembly 4 is always in a cooled state. The other end of the upper cover 401 is connected to the heat insulation plate A413, and the heat insulation plate B414 is connected to the heat insulation plate A413.

[0055] like Figures 17-18As shown, the sample rack assembly 5 includes a sample rack 501, an insulation cover 502, a lower cover 503, a guide sleeve 504, a hand-tightening nut 505, a bracket 506, a locking nut 507, a sample rack inlet pipe 508, and a sample stage thermocouple 509. The sample rack 501, insulation cover 502, and bracket 506 are connected together. The bracket 506 is installed inside the lower cover 503 and secured by the locking nut 507. The sample rack inlet pipe 508 is welded to the lower part of the lower cover 503, and it is connected to the outlet connector 409 in the tank cover assembly 4, allowing the incoming gas to enter the sample rack 501. The sample stage thermocouple 509, used for measuring sample temperature, is installed at the rear of the lower cover 503.

[0056] like Figures 19-20 As shown, the base lifting assembly 6 includes a base 601, cross roller guides 602, a lifting pad 603, a clamping block 604, and a micrometer head 605. Two cross roller guides 602 are mounted on the base 601, and the lifting pad 603 is mounted on top of the cross roller guides 602. The clamping block 604 is mounted below the base 601, and the micrometer head 605 is installed within the clamping block 604. The push rod of the micrometer head 605 contacts and engages with the lower end of the lifting pad 603.

[0057] The temperature of the heating chamber assembly 1 is achieved by heating the entire heating chamber assembly 1 to a high-temperature environment through the energization of the armored electric heating wire 102. The armored electric heating wire 102 is coiled inside the heating housing 101 according to the internal shape of the heating housing 101, so that the entire interior of the heating housing 101 is evenly covered with armored electric heating wire 102 except for the light inlet hole and the sample inlet hole 100.

[0058] The heat insulation cavity assembly 2 has beryllium plates A202 and B204 at the light inlet 200. The beryllium plates do not affect the entry of X-rays, and at the same time make the heat insulation cavity assembly 2 a sealed environment, which plays a role in heat preservation.

[0059] The tank inlet pipe 307 in tank assembly 3 and the sample rack inlet pipe 508 in sample rack assembly 5 can bring gas into tank assembly 3 and sample rack assembly 5, respectively. This gas can be an inert gas, which protects the sample. It can also be liquid nitrogen, etc., which can cool the heating chamber assembly 1.

[0060] The tank assembly 3 and the tank cover 4 are equipped with water channels inside, which ensures that the tank assembly 3 and the tank cover 4 are always in a cooled state during high-temperature use.

[0061] The sample is inserted into the tank 301 through the sample inlet hole at the bottom of the tank assembly 3 via the sample holder assembly 5.

[0062] The operation process of this invention is as follows:

[0063] First, place the sample 7 to be tested on the sample holder 501. Insert the sample holder assembly 5 into the tank 301 within the tank assembly 3. Tighten the four hand-tight nuts 505 to fix the sample holder assembly 5 onto the tank assembly 3. Adjust the micrometer head 605 to the position of 0, meaning the upper plane of the sample holder 501 is horizontal to the diffraction plane of the diffractometer 8. The armored electric heating wire 102 is energized for heating, and simultaneously the water cooling system starts working to cool and protect the tank assembly 3 and the tank cover assembly 4. Once the required temperature is reached, the X-ray can be turned on to begin detection and analysis. If necessary, the required gas can be introduced into the main gas inlet connector 408, filling the entire tank assembly 3. After use, once the temperature has dropped to room temperature, unscrew the four hand-tight nuts 505, pull the sample holder assembly 5 out of the tank 301, and remove the sample 7 to be tested.

Claims

1. A high-temperature in-situ detection device for X-ray diffractometers, characterized in that: It includes the heating chamber assembly, the insulation cavity assembly, the tank body assembly, the tank cover assembly, the sample rack assembly, and the base lifting assembly; The base lifting assembly is mounted on the diffractometer. The rear end of the tank assembly is connected to the lifting pad in the base lifting assembly, and the front end of the tank assembly is connected to the upper cover in the tank cover assembly. The insulation cavity assembly is located inside the tank assembly. The heating chamber assembly is located inside the insulation cavity assembly, and the connecting pipe at the rear of the heating chamber assembly is connected to the gas distribution connector in the tank cover assembly. The lower ends of both the tank assembly and the insulation cavity assembly are provided with sample inlet holes for sample passage. The tank and the tank cover are provided with cooling water channels. The sample rack assembly is fixed at the lower end of the tank assembly, and the sample to be tested is placed in the sample rack in the sample rack assembly and sent into the heating chamber assembly. The insulation cavity assembly has beryllium plates A and B at the window. The beryllium plates do not affect the entry of X-rays, and at the same time make the insulation cavity assembly a sealed environment, which plays a role in heat preservation. The tank cover assembly includes an upper cover, a water channel cover plate, a water channel column, a water channel outer sleeve, a gas distributor, a junction box, a pressure relief valve, a main air inlet, an air outlet connector 1, an air outlet connector 2, a water inlet connector B, a water outlet connector B, a heat insulation plate A, and a heat insulation plate B. The upper cover is welded to the water channel cover plate. The water channel column is welded to the inner hole of the upper cover, and the water channel outer sleeve is welded to the outside of the water channel column. The gas distributor is welded to the end of the water channel outer sleeve and is connected to the junction box. A pressure relief valve is located at the end of the upper cover. The main air inlet, air outlet connector 1, and air outlet connector 2 are welded to the gas distributor. The water channel cover plate has a water inlet connector B, and the water channel outer sleeve has a water outlet connector B. The other end of the upper cover is connected to heat insulation plate A, and heat insulation plate B is connected to heat insulation plate A.

2. The high-temperature in-situ detection device for X-ray diffractometer according to claim 1, characterized in that: The heating chamber assembly includes a heating shell, an armored heating wire, a fixing clamp, a connecting tube, and an ambient temperature thermocouple. The armored heating wire is installed inside the heating shell and is fixed inside the heating shell by multiple fixing clamps. A connecting tube is welded to the tail of the heating shell, and an ambient temperature thermocouple for measuring the ambient temperature is installed inside the connecting tube. The positive and negative wires of the armored heating wire are also led out to the outside through the connecting tube. The heating shell is provided with a sample inlet hole for the sample to pass through.

3. The high-temperature in-situ detection device for X-ray diffractometer according to claim 1, characterized in that: The insulation cavity assembly includes insulation shell A, beryllium plate A, insulation shell B, beryllium plate B, and connecting column; The insulation shell A has a beryllium plate A installed on its upper part, the insulation shell B is installed inside the insulation shell A, the insulation shell B has a beryllium plate B installed on its upper part, and three connecting columns are welded to the front end of the insulation shell A; the insulation cavity assembly is fixed inside the tank through the connecting columns.

4. The high-temperature in-situ detection device for X-ray diffractometer according to claim 1, characterized in that: The tank assembly includes a tank body, window covers, window sealing membranes, guide pillars, water inlet connector A, water outlet connector A, and a second tank air inlet pipe. Two window covers are installed on the top of the tank body, with a window sealing membrane sandwiched between the tank body and the window covers, ensuring both the entry of radiation and the overall sealing of the tank body. Two guide pillars are installed at the bottom of the tank body, and a water channel is provided inside the tank body. This water channel has water inlet connector A and water outlet connector A. During use, water cooling ensures that the tank body remains cooled during high-temperature operation. A second tank air inlet pipe is installed inside the tank body, connecting to a second air outlet connector in the tank cover assembly, allowing incoming gas to reach the very center of the tank body.

5. The high-temperature in-situ detection device for X-ray diffractometer according to claim 1, characterized in that: The sample rack assembly includes a sample rack, an insulation cover, a lower cover, a guide sleeve, a hand-tightening nut, a bracket, a locking nut, a sample rack inlet pipe, and a sample stage thermocouple. The sample rack, insulation cover, and bracket are connected together. The bracket is installed inside the lower cover and secured by the locking nut. The sample rack inlet pipe is welded to the lower part of the lower cover and connects to the outlet connector in the tank cover assembly, allowing gas to enter the sample rack. A sample stage thermocouple for measuring sample temperature is installed at the rear of the lower cover. The insulation cover corresponds to the sample inlet hole. The guide sleeve engages with the guide post on the tank assembly, and the four hand-tightening nuts in the sample rack assembly connect the sample rack assembly to the tank assembly.

6. The high-temperature in-situ detection device for X-ray diffractometer according to claim 1, characterized in that: The base lifting assembly includes a base, cross roller guides, a lifting pad, a clamping block, and a micrometer head; two cross roller guides are installed on the base, and the cross roller guides correspond to the guide grooves of the lifting pad. A clamping block is installed below the base, and the clamping block is provided with screw holes. The micrometer head is screwed into the screw holes, and the top rod of the micrometer head abuts against the lower end of the lifting pad.

7. The high-temperature in-situ detection device for X-ray diffractometer according to claim 1, characterized in that: The armored heating wire is coiled inside the heating housing according to the internal shape of the heating housing, so that the entire interior of the heating housing is evenly covered with armored heating wire except for the light inlet hole and the sample inlet hole.

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