Linear multi-sample cache sample injection calorimetric device

Abstract

The utility model discloses a linear multi-sample cache sample injection calorimetric device, and relates to the field of detection instruments.The calorimetric device comprises a conveying assembly, a transfer assembly and a calorimeter, the conveying assembly is provided with at least two layers of conveying lines, one layer of conveying line can serve as a sample injection conveying line, and the other layer of conveying line can serve as a discharging conveying line; a plurality of sample containers loaded with different samples can be prepared and placed on the sample feeding conveying line at a time, the pre-caching function of the multiple samples is achieved, manual participation is not needed in the midway, the multiple layers of conveying lines directly face the calorimeter, sample feeding and discharging are both located at the same position of the front face of the calorimeter, and the sample feeding and discharging efficiency is improved. The sample and the sample container can be conveniently managed by personnel before and after detection, circulation of the sample and the sample container among a plurality of working positions is realized through the transfer assembly, the automation degree is high, the transfer assembly has degrees of freedom in a plurality of directions, and flexible circulation of the sample container can be realized.

Description

Technical Field

[0001] This application relates to the field of testing instruments, and more particularly to a linear multi-sample buffer injection calorimetric device. Background Technology

[0002] A calorimeter is an instrument used to measure the heat released or absorbed by a substance during a physical or chemical change. It is widely used in energy, chemical, food, medicine, materials and other fields.

[0003] Currently available calorimeters (such as oxygen bomb calorimeters) rely on manual labor for individual oxygen bombs, including sample weighing, loading, oxygen filling, bomb mounting, and analysis. However, due to technological limitations, calorimeters can only analyze one oxygen bomb at a time before switching to another and starting the analysis process again. This necessitates periodic re-intervention for personnel to prepare for testing. This repetitive work model is inefficient and does not meet the requirements of high-throughput testing units. Utility Model Content

[0004] This application provides a linear multi-sample buffer injection calorimetric device that requires no human intervention and has a high degree of automation.

[0005] This application provides a linear multi-sample buffer injection calorimeter, including a delivery component, a transfer component, and a calorimeter;

[0006] The conveying assembly includes a frame and at least two conveyor lines disposed on the frame, the conveyor lines being used to convey sample containers in the X-axis direction;

[0007] The transfer assembly includes an X-axis module, a first lifting drive unit, a rotary drive component, a linear drive unit, and a clamping component. The X-axis module is positioned between the calorimeter and the frame. The first lifting drive unit is connected to the X-axis module and is driven to move in the X-axis direction. The rotary drive component is connected to the first lifting drive unit and is driven to move in the Z-axis direction. The linear drive unit is connected to the rotary drive unit and is driven to rotate around the Z-axis. The clamping component is connected to the linear drive unit and is driven to move horizontally. The clamping component is used to grip the sample container.

[0008] The calorimeter is spaced along the Y-axis on one side of the transfer assembly to measure the heat absorption or heat generation of the sample.

[0009] Preferably, the frame is provided with two layers of conveyor lines, which are arranged at intervals along the Z-axis on the frame. One layer of conveyor lines is configured as a sample feeding conveyor line, and the other layer of conveyor lines is configured as a material discharging conveyor line.

[0010] Preferably, the feeding conveyor line and the discharging conveyor line have opposite conveying directions.

[0011] Preferably, a positioning blocking component is provided on the frame, which is located at the end of the sample feeding conveyor line and is used to block the sample container at the end of the sample feeding conveyor line.

[0012] Preferably, the positioning stop is configured as a V-shaped stop, with the opening of the V-shaped stop facing the sample container.

[0013] Preferably, the V-shaped stop bar is equipped with a detection switch for detecting the sample container.

[0014] Preferably, the rotary drive is configured as a rotary cylinder, the linear drive unit is configured as a slide cylinder, and the clamping component is configured as a pneumatic finger.

[0015] Preferably, the calorimeter includes a calorimeter body and a gas filling / draining assembly. The calorimeter body is disposed on one side of the transfer assembly along the Y-axis and has a bayonet for connecting a sample container. The calorimeter body is used to measure the heat absorption or heat generation of the sample. The gas filling / draining assembly is disposed on one side of the calorimeter body along the X-axis and is used to fill and drain the sample container.

[0016] Preferably, the gas filling / discharging assembly includes a bracket, a second lifting drive unit, a tray, a third lifting drive unit, and a gas head; the bracket is disposed on one side of the calorimeter body; the second lifting drive unit is disposed on the bracket, and the tray is disposed on the second lifting drive unit, which drives the tray and the sample container to move in the Z-axis direction; the third lifting drive unit is disposed on the bracket and located above the second lifting drive unit; the gas head is disposed on the third lifting drive unit, which drives the gas head to connect with the sample container, and the gas head is used to fill and discharge the sample container.

[0017] Preferably, the inflation / deflation assembly further includes a first position detection element and a second position detection element. The first position detection element is disposed in the second lifting drive unit and is used to detect the position of the pallet in the Z-axis direction. The second position detection element is disposed in the third lifting drive unit and is used to detect the position of the air head in the Z-axis direction.

[0018] The calorimetric device of this application has at least the following beneficial effects:

[0019] The conveying assembly of the calorimeter in this application is equipped with at least two layers of conveyor lines. One layer of conveyor line can be used as a sample inlet conveyor line, and the other layer can be used as a discharge conveyor line. Multiple sample containers loaded with different samples can be prepared and placed on the sample inlet conveyor line at one time, realizing the pre-buffering function of multiple samples. After the sample testing is completed, the sample and sample container are placed on the discharge conveyor line and transported to the unloading position for unloading. No manual intervention is required in the middle. In addition, the multi-layer conveyor line of this application is directly facing the calorimeter, and the sample inlet and outlet are located in the same position on the front of the calorimeter, which facilitates the management of the sample and sample container before and after testing. The sample and sample container can be transferred between multiple working positions through the transfer assembly without the need for manual intervention. The degree of automation is high, and the transfer assembly has multiple degrees of freedom in multiple directions, which can realize the flexible transfer of sample containers. Attached Figure Description

[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0021] Figure 1 This is an isometric drawing of the calorimetric device of this application;

[0022] Figure 2 yes Figure 1 A schematic diagram of the structure of the conveyor assembly;

[0023] Figure 3 yes Figure 1 A schematic diagram of the transfer component;

[0024] Figure 4 yes Figure 1 Schematic diagram of a medium calorimeter;

[0025] Figure 5 yes Figure 4 A schematic diagram of the back of the medium calorimeter body;

[0026] Figure 6 yes Figure 5 Vertical cross-sectional view of the inner and outer tubs;

[0027] Figure 7 This is an exploded view of the sample container and the hanging plate;

[0028] Figure 8 This is a vertical cross-sectional view of the sample container;

[0029] Figure 9 yes Figure 4 Schematic diagram of the in-cell inflation and deflation assembly;

[0030] The annotations in the attached figures are explained as follows:

[0031] 100. Conveying assembly; 101. Frame; 102. Conveying line; 102a. Sample feeding conveyor line; 102b. Material discharging conveyor line; 103. Positioning stopper; 104. Detection switch;

[0032] 200. Transfer assembly; 201. X-axis module; 202. First lifting drive unit; 203. Rotary drive component; 204. Linear drive unit; 205. Clamping component;

[0033] 300. Calorimeter; 301. Calorimeter body; 302. Gas filling / discharging assembly; 303. Outer tank; 304. Inner tank; 305. First temperature measuring resistor; 306. Sealing strip; 307. Base; 308. First inlet / outlet connector; 309. Second inlet / outlet connector; 310. Main frame; 311. Fourth lifting drive unit; 312. Lifting frame; 313. Top cover; 314. Hanging plate; 315. Stirring unit; 316. Second temperature measuring resistor; 317. Guide plate; 318. Bayonet; 319. Positioning groove; 320. Bracket; 321. Second lifting drive unit; 322. Support plate; 323. Third lifting drive unit; 324. Gas head; 325. First position detection element; 326. Second position detection element;

[0034] 400. Sample container; 401. Oxygen bomb cup; 402. Oxygen bomb cover; 403. Gas nozzle; 403a. Flange; 404. Valve core; 405. Crucible rack; 406. Crucible; 407. Sealing ring. Detailed Implementation

[0035] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0037] like Figure 1 As shown, this embodiment discloses a linear multi-sample buffer injection calorimetric device. The calorimetric device includes a conveying assembly 100, a transfer assembly 200, and a calorimeter 300. The conveying assembly 100 is used to convey a sample container 400 (the sample is built into the sample container), and the sample container 400 can be buffered on the conveying assembly 100. The transfer assembly 200 is used for the transfer of the sample container 400 between the conveying assembly 100 and the calorimeter 300. The calorimeter 300 is used to measure the heat generation or heat absorption of the sample after burning. In this embodiment, the sample includes coal powder, and the sample container 400 includes an oxygen bomb.

[0038] like Figure 1 As shown, in order to facilitate understanding of the solution of this embodiment, the directions of the attached figures are first defined as follows: the first horizontal direction is configured as the X-axis direction, the second horizontal direction is configured as the Y-axis direction, and the height direction is configured as the Z-axis direction. The X-axis direction, Y-axis direction and Z-axis direction intersect each other perpendicularly to form a three-dimensional coordinate system.

[0039] like Figure 2 As shown, the conveying assembly 100 includes a frame 101 and a conveying line 102. The frame 101 is set on the ground or other base surface and extends a certain length along the X-axis. The conveying line 102 is set on the frame 101 and the length direction (i.e. the conveying direction) of the conveying line 102 is configured in the X-axis direction. The sample container 400 is set on the conveying line 102 and the sample container 400 is conveyed through the conveying line 102.

[0040] like Figure 2 As shown, in this embodiment, the number of conveyor lines 102 is at least two layers. The multi-layer conveyor lines 102 are spaced apart along the Z-axis on the frame 101, and the distance between the layers is greater than the height of the sample container 400. In this embodiment, setting up multi-layer conveyor lines 102 can achieve simultaneous sample feeding and discharging.

[0041] like Figure 2As shown, in this embodiment, the preferred number of conveyor lines 102 is two layers. The conveying direction of both layers of conveyor lines 102 is configured in the X-axis direction. The two layers of conveyor lines 102 are spaced apart on the frame 101 along the Z-axis direction. One layer of conveyor line 102 is configured as the sample infeed conveyor line 102a, and the other layer of conveyor line 102 is configured as the discharge conveyor line 102b. The upper layer of conveyor line 102 is configured as the sample infeed conveyor line 102a, and the lower layer of conveyor line 102 is configured as the discharge conveyor line 102b.

[0042] like Figure 2 As shown, in this embodiment, the conveying directions of the sample infeed conveyor line 102a and the discharge conveyor line 102b are opposite to each other. That is, the conveying direction of the sample infeed conveyor line 102a is to the left along the X-axis, and the conveying direction of the discharge conveyor line 102b is to the right along the X-axis. This embodiment designs the directions of the two conveyor lines 102 to be opposite to each other, which separates the loading and unloading positions, facilitating separate management of untested samples and tested samples, and avoiding errors.

[0043] In some other embodiments, the conveyor line 102 is configured as a belt conveyor line, which is driven by a drive mechanism such as a motor to transport the sample container 400. It should be noted that the specific structural form of the belt conveyor line is an existing mature technology, which will not be described in detail here.

[0044] like Figure 2 As shown, in this embodiment, a positioning blocking member 103 is provided on the frame 101; along the X-axis direction, the positioning blocking member 103 is located at the end of the sample delivery line 102a. When the sample container 400 moves to the end of the sample delivery line 102a along the X-axis direction, the positioning blocking member 103 can block the sample container 400 to achieve the limiting and blocking of the sample container 400 in the X-axis direction. The position where the positioning blocking member 103 is located is defined as the sampling station. The clamping member 205 of the transfer assembly 200 transfers the untested sample and sample container 400 from the sampling station to the calorimeter 300 for measurement.

[0045] like Figure 2As shown, the design of the positioning stop 103 in this embodiment facilitates the clamping member 205 to accurately clamp the sample container 400 from the sampling station. In some preferred embodiments, the positioning stop 103 is configured as a V-shaped stop, that is, the shape of the positioning stop 103 when viewed from above is V-shaped. The V-shaped stop is horizontally set on the frame 101 and located at the end of the sample feeding conveyor line 102a. The opening of the V-shaped stop faces the sample container 400 along the X-axis direction, and the outer peripheral wall of the sample container 400 conveyed to the sampling station can tangentially contact the inner peripheral wall of the V-shaped stop. Since the V-shaped shape has an automatic centering function, the sample container 400 can automatically cooperate with the V-shaped stop to achieve centering, thereby making the sample container 400 located at the sampling station accurately positioned, which facilitates the clamping member 205 of the transfer assembly 200 to accurately clamp the sample container 400.

[0046] like Figure 2 As shown, in some preferred embodiments, a detection switch 104 for detecting the sample container 400 is provided on the V-shaped baffle. The detection switch 104 can detect whether there is a sample container 400 inside the V-shaped baffle. That is, the detection switch 104 is used to detect whether the sample container 400 has reached the sampling station. The signal of the detection switch 104 can be used as a working signal to drive the transfer component 200 to sample.

[0047] like Figure 3 As shown, the transfer assembly 200 includes an X-axis module 201, a first lifting drive unit 202, a rotary drive unit 203, a linear drive unit 204, and a clamping member 205. The X-axis module 201 is located between the calorimeter 300 and the frame 101 of the transfer assembly 100, specifically, the X-axis module 201 is located along the Y-axis between the calorimeter 300 and the transfer assembly 100. The X-axis module 201 extends along the X-axis and can drive the first lifting drive unit 202 to perform linear motion in the X-axis direction. The first lifting drive unit 202 is disposed on the moving end of the X-axis module 201 and is used to drive the rotary drive unit 204. The drive unit 203 performs linear lifting and lowering motion in the Z-axis direction. The rotary drive unit 203 is disposed on the moving end of the first lifting drive unit 202. The rotary drive unit 203 is used to drive the linear drive unit 204 to rotate around the Z-axis direction. The linear drive unit 204 is disposed on the output end of the rotary drive unit 203. The linear drive unit 204 can drive the clamping member 205 to perform linear motion in the horizontal direction. The clamping member 205 is connected to the linear drive unit 204. The clamping member 205 can be used to clamp and release the sample container 400 so that the transfer assembly 200 can drive the sample container 400 to flow between various working positions.

[0048] like Figure 3As shown, in this embodiment, the transfer component 200 has multiple degrees of freedom in multiple directions, namely linear motion in the X-axis, Y-axis and Z-axis directions, and horizontal rotation around the Z-axis. By designing multiple degrees of freedom, the sample container 400 can be flexibly picked up and put down, realizing automated operation.

[0049] In some preferred embodiments, the rotary drive 203 is configured as a rotary cylinder, the linear drive unit 204 is configured as a slide cylinder, and the clamping member 205 is configured as a pneumatic finger.

[0050] like Figure 4 As shown, the calorimeter 300 is disposed on one side of the transfer assembly 200 along the Y-axis. The calorimeter 300 is used to measure the heat generated or absorbed by the sample after burning. It should be noted that the calorimeter 300 can adopt the structure in the prior art or the structure described in this embodiment, both of which are feasible.

[0051] like Figure 4 As shown, the calorimeter 300 of this embodiment includes a calorimeter body 301 and a gas filling and degassing assembly 302; along the Y-axis direction, the calorimeter body 301, the transfer assembly 200 and the conveying assembly 100 are arranged in sequence at intervals; the gas filling and degassing assembly 302 is arranged on one side of the calorimeter body 301 along the X-axis direction, and the gas filling and degassing assembly 302 is used to fill and degas the sample container 400.

[0052] like Figure 5 and Figure 6 As shown, the calorimeter body 301 includes an outer barrel 303, an inner barrel 304, a first temperature measuring resistor 305, a sealing strip 306, a base 307, a first inlet / outlet water connector 308, a second inlet / outlet water connector 309, a main frame 310, a fourth lifting drive unit 311, a lifting frame 312, a top cover 313, a hanging plate 314, a stirring unit 315, and a second temperature measuring resistor 316.

[0053] like Figure 6As shown, the outer barrel 303 is disposed on one side of the transfer assembly 200 along the Y-axis; the upper end of the inner barrel 304 is open, and the inner barrel 304 is coaxially disposed inside the outer barrel 303, forming an annular space between the outer circumferential surface of the inner barrel 304 and the inner circumferential surface of the outer barrel 303; both the annular space and the interior of the inner barrel 304 are filled with a medium, including water or other liquids; a guide plate 317 is arranged in the annular space between the outer barrel 303 and the inner barrel 304 to form a water circulation structure, responsible for quickly achieving a constant temperature effect; the inner barrel 304 is installed inside the outer barrel 303 to contain the medium (e.g., water) and support the sample container 400; the first temperature measuring electrode... A first temperature-sensing resistor 305 is connected to the top of the outer barrel 303 and is used to measure the temperature of the medium in the annulus. The first temperature-sensing resistor 305 includes a platinum resistance thermometer. A sealing strip 306 is coaxially disposed at the center of the top of the outer barrel 303 and is used to seal between the outer barrel 303 and the top cover 313. A foot 307 is installed at the bottom of the outer barrel 303 and is used to adjust the height of the outer barrel 303. A first inlet / outlet connector 308 passes through the outer barrel 303 and the annulus and communicates with the interior of the inner barrel 304. A second inlet / outlet connector 309 passes through the outer barrel 303 and communicates with the annulus. The medium flows in and out of the outer barrel 303 and the inner barrel 304 through the two inlet / outlet connectors.

[0054] like Figure 5 As shown, the main frame 310 is disposed on one side of the outer tub 303; the lifting frame 312 is slidably connected to the main frame 310, and the sliding direction of the lifting frame 312 is configured in the Z-axis direction; the fourth lifting drive unit 311 is disposed on the main frame 310 and is used to drive the lifting frame 312 to move up and down in the Z-axis direction; the upper cover 313 is connected to the lifting frame 312, and the upper cover 313 can move up and down together with the lifting frame 312. The upper cover 313 is horizontally disposed and can cover the outer tub 303 and the inner tub 304 downwards, so that the interior of the inner tub 304 is sealed; the hanging plate 314 is connected to the lower surface of the upper cover 313, and the hanging plate 314 and the inner tub 304 are correspondingly disposed in the Z-axis direction.

[0055] like Figure 7 As shown, in this embodiment, the mounting plate 314 is provided with a bayonet 318. The bayonet 318 has a U-shaped top view and a downwardly recessed positioning groove 319. The positioning groove 319 can position the sample container 400 so that the sample container 400 can only be pushed upward and cannot move in other directions.

[0056] like Figure 7 As shown, in this embodiment, the sample container 400 is provided with a flange 403a, which can be placed in the positioning groove 319. The flange 403a and the positioning groove 319 cooperate and are positioned together, thereby restricting the horizontal displacement of the sample container 400. The sample container 400 of this embodiment can refer to the existing oxygen bomb structure, as follows:

[0057] like Figure 8 As shown, the sample container 400 includes an oxygen bomb cup 401, an oxygen bomb cover 402, a gas nozzle 403, a valve core 404, a crucible rack 405, a crucible 406, and a sealing ring 407. The oxygen bomb cup 401 and the oxygen bomb cover 402 are connected to form a combustion chamber. The gas nozzle 403 is installed on the oxygen bomb cover 402 and is used to cooperate with the gas filling and emptying assembly 302 for gas filling and emptying. A flange 403a is provided on the outer circumference of the gas nozzle 403, which facilitates the positioning and connection of the sample container 400 in the positioning groove 319 of the hanging plate. The valve core 404 is installed in the gas nozzle 403 to realize the opening and closing function of the gas nozzle 403. The crucible rack 405 is installed below the oxygen bomb cover 402 and is responsible for supporting the crucible 406. The crucible 406 is placed on the crucible rack 405 and is responsible for carrying the sample. The sealing ring 407 is installed between the various parts to realize the sealing function of the entire sample container. It should be noted that the sample container 400 also includes other structures, but since the sample container 400 is prior art, it will not be described in detail here.

[0058] like Figure 7 As shown, the positioning principle of the positioning groove 319 and the flange 403a is as follows: the inner bottom surface of the positioning groove 319 is in contact with the lower surface of the flange 403a. The inner bottom surface of the positioning groove 319 supports the flange 403a and bears the weight of the sample container 400 in the Z-axis direction. The inner circumferential contour of the positioning groove 319 is consistent with the outer circumferential contour of the flange 403a, so that the inner circumferential surface of the positioning groove 319 surrounds the outer circumferential side of the flange 403a. The inner circumferential surface of the positioning groove 319 restricts the horizontal displacement of the flange 403a.

[0059] The nozzle 403 of the sample container 400 passes downward through the bayonet 318, and the flange 403a on the outer periphery of the nozzle 403 is engaged in the positioning groove 319, so that the sample container 400 can only be lifted upward in the Z-axis direction. The movement of the sample container 400 in other directions is restricted by the positioning groove 319, ensuring that once the sample container 400 is engaged in the positioning groove 319 of the bayonet 318, the X, Y, and Z-axis positioning of the sample container 400 is completed, eliminating the need for secondary positioning and saving time. When it is necessary to transfer the sample container 400, the sample container 400 can be lifted upward and disengaged from the bayonet 318 along the Y-axis direction.

[0060] like Figure 5 As shown, the stirring unit 315 is disposed on the upper cover 313. The stirring unit 315 is used to stir the medium in the inner tank 304. It can be understood that the stirring unit 315 includes a motor, a stirring shaft and stirring blades. The stirring motor is disposed on the upper cover 313. The stirring shaft is rotatably connected to the upper cover 313 and connected to the output end of the stirring motor. The stirring blades are connected to the stirring shaft. The stirring shaft and the stirring blades are both disposed in the Z-axis direction corresponding to the inner tank 304.

[0061] like Figure 5 As shown, the second temperature measuring resistor 316 is disposed on the lower surface of the upper cover 313 and is used to measure the temperature of the medium inside the inner barrel 304. The second temperature measuring resistor 316 includes a platinum resistance thermometer.

[0062] In some preferred embodiments, the calorimeter body 301 also includes an external water tank (not shown), which includes a tank body, a water inlet, a water outlet, an overflow outlet, and support legs. The external water tank is used to replenish water for the outer tank 303 and the inner tank 304.

[0063] like Figure 9 As shown, the gas filling and venting assembly 302 is used to fill and vent the sample container 400, specifically to fill the sample container 400 with oxygen or to release the gas inside the sample container 400. The gas filling and degassing assembly 302 includes a support 320, a second lifting drive unit 321, a tray 322, a third lifting drive unit 323, and a gas head 324. The support 320 is arranged on one side of the outer barrel 303 along the X-axis direction. The second lifting drive unit 321 is arranged on the support 320, and the tray 322 is arranged on the second lifting drive unit 321. The second lifting drive unit 321 drives the tray 322 to move in the Z-axis direction. When the tray 322 moves upward, it can lift the sample container 400 upward. The third lifting drive unit 323 is arranged on the support 320 and is located above the second lifting drive unit 321. The gas head 324 is connected to the third lifting drive unit 323 and can be connected to an external oxygen source to fill and degas the sample container 400.

[0064] like Figure 9 As shown, the working principle of the inflation / deflation assembly 302 in this embodiment is as follows: the clamping member 205 of the transfer assembly 200 transports the sample container 400 that needs to be inflated or deflated to the tray 322 and positions the sample container 400 through the blind hole provided on the tray 322. The second lifting drive unit 321 drives the tray 322 and the sample container 400 to move upward together to the predetermined position. The third lifting drive unit 323 drives the air head 324 to move downward. The air head 324 is directly opposite the air nozzle 403 of the sample container 400. The air head 324 moves downward and completely covers the air nozzle 403 of the sample container 400. Inflation or deflation is achieved through the cooperation of the air head 324 and the air nozzle 403.

[0065] In this embodiment, the gas filling and degassing assembly 302 is disposed on one side of the calorimeter body 301. On the one hand, by setting the gas filling and degassing assembly 302 and the calorimeter body 301 independently, the weight pressure of the calorimeter body 301 and the complexity of the structural design can be reduced (in the prior art, the gas filling and degassing assembly 302 is usually disposed on the upper cover 313 of the calorimeter body 301). On the other hand, when the sample container 400 is filled with gas, the support plate 322 bears the impact force during filling, avoiding the impact force from acting directly on the hanging plate 314 and causing damage to the calorimeter body 301.

[0066] like Figure 9 As shown, in this embodiment, the inflation / deflation assembly 302 further includes a first position detection element 325 and a second position detection element 326; the first position detection element 325 is disposed in the second lifting drive unit 321 and is used to detect the position of the pallet 322 in the Z-axis direction; the second position detection element 326 is disposed in the third lifting drive unit 323 and is used to detect the position of the air head 324 in the Z-axis direction.

[0067] In this embodiment, the positions of the tray 322 and the gas head 324 are obtained by setting the first position detection element 325 and the second position detection element 326 respectively, so that the second lifting drive unit 321 and the third lifting drive unit 323 can lift the sample container 400 and drive the gas head 324 to fill and release gas.

[0068] In this embodiment, the first lifting drive unit 202, the second lifting drive unit 321, the third lifting drive unit 323, and the fourth lifting drive unit 311 are all preferably existing actuators capable of linear drive, such as linear modules, lead screw and slider mechanisms, telescopic cylinders, slide cylinders, etc.

[0069] The working steps of the calorimetric device in this embodiment are as follows:

[0070] I. Preparatory Work

[0071] Weigh the sample as required, place it in crucible 406, hang crucible 406 in crucible rack 405 inside sample container 400 (oxygen bomb), and pour 10ml of water into sample container 400.

[0072] II. Sample Injection Preparation

[0073] Place the sample container 400 stably on the sample feeding conveyor line 102a, start the feeding button, and the sample feeding conveyor line 102a will start feeding in, preparing to put in the second sample container 400 (oxygen bomb). After feeding is completed, press the detection start button again.

[0074] III. Start the detection procedure

[0075] (1) Oxygenation

[0076] The clamping member 205 of the transfer assembly 200 moves to the tail end of the sample delivery line 102a under the cooperation of the X-axis module 201, the first lifting drive unit 202, the rotary drive unit 203, and the linear drive unit 204, and clamps the sample container 400 at the sampling station at the tail end. Specifically, the X-axis module 201 drives the clamping member 205 to move to the tail end of the sample delivery line 102a, and the first lifting drive unit 202 drives the clamping member 205 to move to the sampling station at the tail end. At the same height as the sample container 400, the rotary drive 203 drives the clamping member 205 to rotate so that it is directly opposite the sample container 400. The linear drive unit 204 drives the clamping member 205 to extend into the outside of the sample container 400 and clamp the sample container 400. After clamping the sample container 400, it is transported to the tray 322 of the gas filling and defilling assembly 302. Then the clamping member 205 releases the sample container 400 and retracts under the drive of the linear drive unit 204. The sample container 400 is ready to be filled with oxygen.

[0077] The second lifting drive unit 321 drives the tray 322 to move upward to the predetermined position and then stops. The third lifting drive unit 323 drives the gas head 324 to move downward until the gas head 324 completely covers the gas nozzle 403 of the sample container 400 and begins to fill with oxygen.

[0078] After oxygenation is completed, the third lifting drive unit 323 drives the air head 324 to return to its initial position and standby.

[0079] (2) Sample delivery

[0080] The clamping member 205 of the transfer assembly 200 moves to the outside of the sample container 400 after oxygenation is completed, with the cooperation of the linear drive unit 204. The clamping member 205 clamps the sample container 400 and, with the cooperation of the X-axis module 201, the linear drive unit 204 and the first lifting drive unit 202, moves the sample container 400 to the same height position as the hanging plate 314 of the calorimeter body 301. At this time, the flange 403a on the air nozzle 403 is slightly higher than the height of the hanging plate 314. The air nozzle 403 of the sample container 400 extends into the bayonet 318 of the hanging plate 314 along the Y-axis direction under the drive of the clamping member 205 and the linear drive unit 204. Then, the sample container 400 is placed downward in the positioning groove 319 of the bayonet 318. The positioning of the sample container 400 is achieved by the cooperation of the flange 403a on the air nozzle 403 and the positioning groove 319. Then, the linear drive unit 204 drives the clamping member 205 to retract and reset, and the sample delivery ends.

[0081] III. Test the samples;

[0082] (1) The fourth lifting drive unit 311 drives the upper cover 313 to descend until the sample container 400 falls on the support at the bottom of the inner barrel 304 and the upper cover 313 closes with the top of the outer barrel 303.

[0083] (2) Start the stirring unit 315 to start the ignition test of the sample (the ignition of the sample is the prior art, and will not be described in detail here). The heat released by the combustion of the sample is transferred to the surrounding water bath (or air bath) through the sample container 400. The platinum resistance records the temperature change (ΔT) of the water bath or air bath in real time, and uses this to measure the heat absorbed after the sample combustion. For a detailed explanation of the principle, please refer to the prior art, and will not be described in detail here. After the test is completed, the results are generated.

[0084] IV. End of Testing

[0085] (1) The top cover 313 rises and brings the sample container 400 that has been tested upward. Then the clamping member 205 clamps the sample container 400. The first lifting drive unit 202 lifts the sample container 400 upward, and the linear drive unit 204 drives the sample container 400 to exit from the bayonet 318 along the Y-axis. Then, through the cooperation of the X-axis module 201, the linear drive unit 204 and the first lifting drive unit 202, the sample container 400 that has been tested is placed on the tray 322 of the inflation and deflation assembly 302, and the sample container 400 is deflated according to the above oxygenation steps.

[0086] After the venting is completed, the sample container 400 after testing is placed on the discharge conveyor line 102b by the cooperation of the X-axis module 201, the linear drive unit 204 and the first lifting drive unit 202. The discharge conveyor line 102b transports the sample and sample container 400 after testing to the unloading position along the X-axis direction.

[0087] V. Proceed to the next sample test.

[0088] After the current sample container 400 is vented, the water in the calorimeter rebalances its temperature. Once the water temperature balance is achieved, the sample delivery line 102a transports the next sample to be tested and its sample container to the sampling station at the end. The next sample is then tested following the same steps.

[0089] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A linear multi-sample buffer calorimetric device, characterized in that, include: The conveying assembly (100) includes a frame (101) and at least two layers of conveying lines (102) disposed on the frame (101), the conveying lines (102) being used to convey sample containers (400) in the X-axis direction. The transfer assembly (200) includes an X-axis module (201), a first lifting drive unit (202), a rotary drive unit (203), a linear drive unit (204), and a clamping member (205); the X-axis module (201) is disposed between the calorimeter (300) and the frame (101); the first lifting drive unit (202) is connected to the X-axis module (201), and the X-axis module (201) drives the first lifting drive unit (202) to move in the X-axis direction; the rotary drive unit (203) is connected to the first lifting drive unit (205). The drive unit (202) drives the rotary drive (203) to move in the Z-axis direction through the first lifting drive unit (202); the linear drive unit (204) is connected to the rotary drive (203) and drives the linear drive unit (204) to rotate around the Z-axis direction through the rotary drive (203); the clamping member (205) is connected to the linear drive unit (204) and drives the clamping member (205) to move in the horizontal direction through the linear drive unit (204), and the clamping member (205) is used to clamp the sample container (400); A calorimeter (300) is spaced along the Y-axis on one side of the transfer assembly (200) and is used to measure the heat absorption or heat generation of the sample.

2. The calorimetric device according to claim 1, characterized in that, The frame (101) is provided with two layers of conveyor lines (102). The two layers of conveyor lines (102) are arranged at intervals along the Z-axis on the frame (101). One layer of conveyor line (102) is configured as a sample feeding conveyor line (102a), and the other layer of conveyor line (102) is configured as a material discharging conveyor line (102b).

3. The calorimetric device according to claim 2, characterized in that, The feeding conveyor line (102a) and the discharging conveyor line (102b) are in opposite directions.

4. The calorimetric device according to claim 2, characterized in that, A positioning stop (103) is provided on the frame (101). The positioning stop (103) is located at the end of the sample delivery line (102a) and is used to block the sample container (400) at the end of the sample delivery line (102a).

5. The calorimetric device according to claim 4, characterized in that, The positioning stop (103) is configured as a V-shaped stop bar with the opening of the V-shaped stop bar facing the sample container (400).

6. The calorimetric device according to claim 5, characterized in that, The V-shaped stop bar is equipped with a detection switch (104) for detecting the sample container (400).

7. The calorimetric device according to claim 1, characterized in that, The rotary drive (203) is configured as a rotary cylinder, the linear drive unit (204) is configured as a slide cylinder, and the clamping member (205) is configured as a pneumatic finger.

8. The calorimetric device according to claim 1, characterized in that, The calorimeter (300) includes a calorimeter body (301) and a gas filling and emptying assembly (302). The calorimeter body (301) is located on one side of the transfer assembly (200) along the Y-axis. The calorimeter body (301) is provided with a bayonet (318) for connecting the sample container (400). The calorimeter body (301) is used to measure the heat absorption or heat generation of the sample. The gas filling and emptying assembly (302) is located on one side of the calorimeter body (301) along the X-axis and is used to fill and empty the sample container (400).

9. The calorimetric device according to claim 8, characterized in that, The gas filling and degassing assembly (302) includes a bracket (320), a second lifting drive unit (321), a tray (322), a third lifting drive unit (323), and a gas head (324). The bracket (320) is located on one side of the calorimeter body (301). The second lifting drive unit (321) is located on the bracket (320), and the tray (322) is located on the second lifting drive unit (321). The second lifting drive unit (321) drives the tray (322) and the sample container (400) to move in the Z-axis direction. The third lifting drive unit (323) is located on the bracket (320) and above the second lifting drive unit (321). The gas head (324) is located on the third lifting drive unit (323). The third lifting drive unit (323) drives the gas head (324) to connect with the sample container (400). The gas head (324) is used to fill and degas the sample container (400).

10. The calorimetric device according to claim 9, characterized in that, The inflation / deflation assembly (302) also includes a first position detection element (325) and a second position detection element (326). The first position detection element (325) is disposed in the second lifting drive unit (321) and is used to detect the position of the pallet (322) in the Z-axis direction. The second position detection element (326) is disposed in the third lifting drive unit (323) and is used to detect the position of the air head (324) in the Z-axis direction.

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