Real-time testing device for multi-field coupled rheological properties of CO2

Abstract

This utility model relates to the field of fluid flow technology and discloses a real-time testing device for the multi-field coupled rheological properties of CO2. The device includes a metal frame with a heating mechanism on one side. The heating mechanism comprises a side cover fastened to one side of the metal frame. A hollow shaft is rotatably inserted through the center of the side cover via a rotating seat. A stirring rod is symmetrically fixed to the circumference of one end of the hollow shaft. A sealing ring is fixed inside a sealing groove. A turntable is fixed to the other end of the hollow shaft. A bracket is fixed at the middle of the side cover, and a heating rod is fixed at the center of the bracket's inner side. Through the structure of the heating mechanism and the hollow shaft inserted into the inner side of the metal frame, this utility model allows the heating rod to directly transfer heat through the hollow shaft to the carbon dioxide inside the metal frame, thereby quickly and accurately adjusting the temperature and changing the shape of the carbon dioxide inside the metal frame for testing its rheological properties.

Description

Technical Field

[0001] This utility model relates to the field of fluid flow technology, specifically a real-time testing device for the multi-field coupled rheological properties of CO2. Background Technology

[0002] CO2 is the chemical formula for carbon dioxide. Its multi-field coupled rheological properties refer to the flow and deformation characteristics of carbon dioxide under the interaction of multiple physical fields such as temperature field, pressure field, seepage field, and stress field. This research is often used in the fields of carbon dioxide capture, utilization and storage.

[0003] In the testing of carbon dioxide, the existing testing device is based on a metal frame. A barometer is installed on the circumference of the metal frame, and a valve is fixed on the circumference of the metal frame, located on one side of the barometer. Through holes are evenly distributed on the side of the metal frame, and transparent cover plates are fastened to both sides of the metal frame. Bolts are inserted through the edges of the transparent cover plates and are inserted into the through holes. A nut is installed at one end of the bolt and is pressed against the surface of the transparent cover plate. During the test, dry ice can be placed inside the metal frame, and then the transparent cover plates are fixed to both sides of the metal frame to seal it. At this time, a hot air gun or other equipment can be used to heat the cover plates. According to the temperature and pressure changes, the carbon dioxide is brought to a supercritical state or other states, thereby detecting its rheological properties.

[0004] However, the current testing device is heated by an external heat source, which makes it impossible to accurately regulate the temperature inside the device. Furthermore, the operation of disassembling and assembling the cover plate before and after testing is cumbersome, resulting in low efficiency in carbon dioxide testing. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology has the following problems, the current testing device is heated by an external heat source during use, which makes it impossible to accurately adjust the temperature inside the device, and the operation of disassembling and assembling the cover plate before and after testing is relatively cumbersome, resulting in low efficiency of carbon dioxide testing.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A real-time testing device for the multi-field coupled rheological properties of CO2 includes:

[0009] A metal frame, wherein a heating mechanism is provided on one side of the metal frame, a fixing mechanism is provided on the inner side of the metal frame, and a sealing mechanism is provided on the side of the metal frame;

[0010] The heating mechanism includes a side cover fastened to one side of a metal frame. A hollow shaft is rotatably inserted through the center of the side cover via a rotating seat. A stirring rod is symmetrically fixed on the circumferential surface of one end of the hollow shaft. A sealing groove is opened on the inner side of the side cover, and a sealing ring is fixed inside the sealing groove. A turntable is fixed to the other end of the hollow shaft. A bracket is fixed at the middle position of the side of the side cover, and an electric heating rod is fixed at the center of the inner side of the bracket.

[0011] As a further embodiment of this utility model: the heating rod is inserted and installed inside the hollow shaft, and the heating rod is slidably connected to the hollow shaft; the sealing ring is symmetrically arranged on both sides of the rotating seat, and the sealing ring is tightly fitted to the surface of the rotating seat.

[0012] As a further embodiment of this utility model: the fixing mechanism includes a sliding groove evenly opened on the inner circumferential surface of the metal frame, a piston is slidably installed inside the sliding groove, a connecting rod is fixed to one side of the piston, and a spring is fixedly connected between the piston and one end of the inner side of the sliding groove.

[0013] As a further embodiment of this utility model: U-shaped grooves are evenly provided on the inner side of the metal frame, and U-shaped inserts are slidably installed on the inner side of the U-shaped grooves. One end of the connecting rod passes through the groove and is fixedly connected to the U-shaped insert. Through holes are provided on the side of the metal frame.

[0014] As a further embodiment of this utility model: a fixing rod is symmetrically installed inside the through hole by means of a limiting block, and a fixing hole is opened at one end of the fixing rod, with the bottom side of the fixing hole being inclined. The U-shaped insert is fastened to the inside of the fixing hole.

[0015] As a further embodiment of this utility model: the sealing mechanism includes rectangular grooves symmetrically opened on both sides of the metal frame, a rubber pad is fixedly fitted inside the rectangular groove, and a transparent shell is fastened to the side of the metal frame.

[0016] As a further improvement of this utility model: the rubber pad is tightly attached to the surface of the transparent shell and the side cover, a barometer is installed on the circumferential surface of the metal frame, and an air valve is installed on the circumferential surface of the metal frame, and the air valve is connected to the inside of the metal frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention utilizes a heating mechanism with a hollow shaft inserted into the inside of a metal frame. This allows the heating rod to directly transfer heat through the hollow shaft to the carbon dioxide inside the metal frame, thereby quickly and precisely adjusting the temperature and changing the shape of the carbon dioxide inside the metal frame to test its rheological properties. Attached Figure Description

[0019] Figure 1 A schematic diagram of a real-time testing device for the multi-field coupled rheological properties of CO2.

[0020] Figure 2 A side cross-sectional view of the heating mechanism of a real-time testing device for multi-field coupled rheological properties of CO2.

[0021] Figure 3 A top-view cross-sectional schematic diagram of the fixing mechanism of the real-time testing device for multi-field coupled rheological properties of CO2;

[0022] Figure 4 A bottom-view cross-sectional view of the sealing mechanism of a real-time testing device for multi-field coupled rheological properties of CO2.

[0023] In the diagram: 1. Metal frame; 2. Heating mechanism; 21. Side cover; 22. Rotating seat; 23. Hollow shaft; 24. Stirring rod; 25. Sealing groove; 26. Sealing ring; 27. Turntable; 28. Support; 29. ​​Heating rod; 3. Fixing mechanism; 31. Slide groove; 32. Piston; 33. Connecting rod; 34. Spring; 35. U-shaped groove; 36. U-shaped insert rod; 37. Fixing rod; 38. Fixing hole; 4. Through hole; 5. Sealing mechanism; 51. Rectangular groove; 52. Rubber pad; 53. Barometer; 54. Air valve; 6. Transparent shell. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0027] Example 1:

[0028] Please see Figures 1-2 This is the first embodiment of the present invention.

[0029] This embodiment provides a real-time testing device for the multi-field coupled rheological properties of CO2, including:

[0030] Metal frame 1, heating mechanism 2 is provided on one side of metal frame 1, fixing mechanism 3 is provided on the inner side of metal frame 1, and sealing mechanism 5 is provided on the side of metal frame 1;

[0031] The heating mechanism 2 includes a side cover 21 fastened to one side of the metal frame 1. A hollow shaft 23 is inserted through the center of the side cover 21 via a rotating seat 22. A stirring rod 24 is symmetrically fixed on the circumferential surface of one end of the hollow shaft 23. A sealing groove 25 is opened on the inner side of the side cover 21. A sealing ring 26 is fixed inside the sealing groove 25. A turntable 27 is fixed at the other end of the hollow shaft 23. A bracket 28 is fixed at the middle position of the side of the side cover 21. An electric heating rod 29 is fixed at the center of the inner side of the bracket 28.

[0032] Specifically, the heating rod 29 is inserted and installed inside the hollow shaft 23, and the heating rod 29 is slidably connected to the hollow shaft 23. The sealing rings 26 are symmetrically arranged on both sides of the rotating seat 22, and the sealing rings 26 are tightly attached to the surface of the rotating seat 22.

[0033] Furthermore, through the structure of the hollow shaft 23 and the heating rod 29, the inner side of the metal frame 1 can be directly heated, thereby precisely controlling its inner temperature and preventing subsequent testing.

[0034] In use, dry ice is placed inside the metal frame 1, and then the side cover 21 and the transparent shell 6 are fixed to both sides of the metal frame 1. At this time, the heating rod 29 is turned on so that it heats the carbon dioxide inside the metal frame 1 with the cooperation of the hollow shaft 23, so that it is in a liquid or supercritical state. Then, the turntable 27 can be rotated to drive the hollow shaft 23 to rotate, thereby causing the stirring rod 24 at one end of the hollow shaft 23 to stir the carbon dioxide inside the metal frame 1 to flow, thereby testing its rheological properties. This structure can quickly and accurately adjust the temperature of the carbon dioxide inside the metal frame 1, thereby ensuring the accuracy of the test results.

[0035] In summary, through the structure of the heating mechanism 2 and the hollow shaft 23 inserted into the inside of the metal frame 1, the heating rod 29 can directly transfer heat to the carbon dioxide inside the metal frame 1 through the hollow shaft 23, thereby quickly and accurately adjusting the temperature of the carbon dioxide inside the metal frame 1 and changing its shape, so as to test the rheological properties of carbon dioxide.

[0036] Example 2:

[0037] Please see Figures 3-4 This is the second embodiment of the present utility model.

[0038] Specifically, the fixing mechanism 3 includes a sliding groove 31 evenly opened on the inner circumferential surface of the metal frame 1. A piston 32 is slidably installed inside the sliding groove 31. A connecting rod 33 is fixed to one side of the piston 32. A spring 34 is fixedly connected between the piston 32 and one end of the inner side of the sliding groove 31. A U-shaped groove 35 is evenly opened inside the metal frame 1. A U-shaped insert rod 36 is slidably installed inside the U-shaped groove 35. One end of the connecting rod 33 passes through the sliding groove 31 and is fixedly connected to the U-shaped insert rod 36. Through holes 4 are opened on the side of the metal frame 1. A fixing rod 37 is symmetrically inserted and installed inside the through hole 4 through the cooperation of a limiting block. A fixing hole 38 is opened at one end of the fixing rod 37, and the bottom side of one end of the fixing hole 38 is inclined. The U-shaped insert rod 36 is fastened inside the fixing hole 38.

[0039] Furthermore, through the structure of piston 32 and U-shaped insert 36, when the pressure inside the metal frame 1 increases, the U-shaped insert 36 can be automatically pushed to extend and fix the fixing rod 37, so that the fixing rod 37 presses the side cover 21 and the transparent shell 6 on both sides of the metal frame 1, realizing the function of quick assembly and disassembly and improving the efficiency of testing.

[0040] Specifically, the sealing mechanism 5 includes rectangular grooves 51 symmetrically opened on both sides of the metal frame 1. A rubber pad 52 is fixedly fitted inside the rectangular groove 51. A transparent shell 6 is fastened to the side of the metal frame 1. The rubber pad 52 is tightly attached to the surface of the transparent shell 6 and the side cover 21. A barometer 53 is installed on the circumference of the metal frame 1. An air valve 54 is installed on the circumference of the metal frame 1 and is connected to the inside of the metal frame 1.

[0041] Furthermore, the pressure inside the metal frame 1 can be measured through the gas valve 54 and the barometer 53, and it is convenient to introduce other gases into the inside of the metal frame 1 or to discharge the gas after the test is completed, thereby facilitating the testing of the rheological properties of carbon dioxide and making the testing device easier to use.

[0042] In use, the side cover 21 and the transparent shell 6 are respectively fastened to both sides of the metal frame 1. Then, the fixing rod 37 is passed through the side cover 21 and the transparent shell 6 and fastened to the inside of the through hole 4 on the circumferential surface of the metal frame 1. At this time, when the dry ice inside the metal frame 1 vaporizes and its internal pressure increases, it will push the piston 32 to slide inside the slide groove 31, thereby pushing the U-shaped insert rod 36 to slide inside the U-shaped groove 35. This causes one end of the U-shaped insert rod 36 to press against the inclined surface of the fixing hole 38, causing the fixing rods 37 on both sides to retract, clamping and fixing the side cover 21 and the transparent shell 6 to both sides of the metal frame 1. At the same time, the U-shaped insert rod 36 is inserted into the through hole 4. The fixing rod 37 is fixed inside the fixing hole 38 to prevent it from falling off under force. At this time, with the cooperation of the rubber pad 52, the inside of the metal frame 1 is in a sealed environment to test the rheological properties of carbon dioxide. After the test is completed, the gas valve 54 can be slowly opened to discharge the gas inside the metal frame 1. After the pressure inside returns to normal, the spring 34 pushes the piston 32 to slide inside the slide groove 31, so that the U-shaped insert 36 is pulled out inside the fixing hole 38 with the cooperation of the connecting rod 33, releasing the fixing of the fixing rod 37, so that the side cover 21 and the transparent shell 6 can be removed for the next test.

[0043] In summary, through the structure of the fixing mechanism 3 and the sealing mechanism 5, and through the cooperation of the piston 32 and the spring 34, the fixing rod 37 can be automatically fixed during the test. After the test is completed, the spring 34 pushes the piston 32 to reset and automatically contact the fixing. Thus, the side cover 21 and the transparent shell 6 can be quickly disassembled and assembled before and after the test, thereby improving the testing efficiency of the testing device.

[0044] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0045] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0046] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A real-time testing device for CO2 multi-field coupling rheological characteristics, comprising: A metal frame (1) is characterized in that: a heating mechanism (2) is provided on one side of the metal frame (1), a fixing mechanism (3) is provided on the inner side of the metal frame (1), and a sealing mechanism (5) is provided on the side of the metal frame (1). The heating mechanism (2) includes a side cover (21) fastened to one side of the metal frame (1). A hollow shaft (23) is inserted through the center of the side cover (21) via a rotating seat (22). A stirring rod (24) is symmetrically fixed on the circumferential surface of one end of the hollow shaft (23). A sealing groove (25) is opened on the inner side of the side cover (21). A sealing ring (26) is fixed on the inner side of the sealing groove (25). A turntable (27) is fixed on the other end of the hollow shaft (23). A bracket (28) is fixed at the middle position of the side of the side cover (21). An electric heating rod (29) is fixed at the center of the inner side of the bracket (28). 2.The CO2 multi-field coupling rheological property real-time testing device according to claim 1, characterized in that: The heating rod (29) is inserted and installed inside the hollow shaft (23), and the heating rod (29) is slidably connected to the hollow shaft (23). The sealing ring (26) is symmetrically arranged on both sides of the rotating seat (22), and the sealing ring (26) is tightly attached to the surface of the rotating seat (22). 3.The CO2 multi-field coupling rheological property real-time testing device according to claim 1, characterized in that: The fixing mechanism (3) includes a slide groove (31) evenly opened on the inner circumferential surface of the metal frame (1), a piston (32) is slidably installed inside the slide groove (31), a connecting rod (33) is fixed on one side of the piston (32), and a spring (34) is fixedly connected between the piston (32) and one end of the inner side of the slide groove (31). 4.The CO2 multi-field coupling rheological property real-time testing device according to claim 3, characterized in that: The metal frame (1) has U-shaped grooves (35) evenly distributed on its inner side. A U-shaped rod (36) is slidably installed on the inner side of the U-shaped groove (35). One end of the connecting rod (33) passes through the sliding groove (31) and is fixedly connected to the U-shaped rod (36). The metal frame (1) has through holes (4) on its side.

5. The real-time testing device for multi-field coupled rheological properties of CO2 according to claim 4, characterized in that: A fixing rod (37) is symmetrically inserted and installed inside the through hole (4) with the cooperation of a limiting block. A fixing hole (38) is opened at one end of the fixing rod (37), and the bottom side of one end of the fixing hole (38) is inclined. The U-shaped insert rod (36) is fastened inside the fixing hole (38).

6. The real-time testing device for multi-field coupled rheological properties of CO2 according to claim 1, characterized in that: The sealing mechanism (5) includes rectangular grooves (51) symmetrically opened on both sides of the metal frame (1), a rubber pad (52) is fixed inside the rectangular groove (51), and a transparent shell (6) is fastened to the side of the metal frame (1).

7. The real-time testing device for multi-field coupled rheological properties of CO2 according to claim 6, characterized in that: The rubber pad (52) is tightly attached to the surface of the transparent shell (6) and the side cover (21). A barometer (53) is installed on the circumferential surface of the metal frame (1). An air valve (54) is installed on the circumferential surface of the metal frame (1), and the air valve (54) is connected to the inside of the metal frame (1).

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