Pressure control device and method for high-temperature and high-pressure reaction kettle

Abstract

The invention discloses a pressure control device and method for a high-temperature and high-pressure reaction kettle, and relates to the technical field of high-temperature and high-pressure experiment earth science, and the device comprises an automatic pressurization unit, a manual pressurization unit, a temperature and pressure rise control unit and a temperature and pressure control panel; wherein a first valve, a first pressure gauge, a second valve and a second pressure gauge are sequentially arranged between the automatic pressurizing unit and the manual pressurizing unit; a pipeline where the temperature rise and pressure rise control unit is located is connected between the first pressure gauge and the second valve through a tee joint; the temperature and pressure control panel is connected with the automatic pressurizing unit, the manual pressurizing unit and the temperature and pressure rising control unit in a wired mode. The rapid quenching cold sealing type autoclave pressure control system is upgraded and designed, the system is convenient to debug and control the pressure after being improved, the pressure precision is further improved, the pressure is more stable and visualized in the experiment process, and positive significance is achieved for experiment research.

Description

Technical Field

[0001] This invention relates to the field of high-temperature and high-pressure experimental earth science technology, and in particular to a pressure control device and method for a high-temperature and high-pressure reactor. Background Technology

[0002] The study of geological processes within the Earth helps us understand Earth's evolution, geological hazards and resource formation, as well as climate and environmental changes on the Earth's surface. However, our current understanding of the Earth's interior primarily comes from samples taken from deep within the Earth and the findings of high-temperature, high-pressure (HTHP) experiments. Because samples from deep within the Earth are extremely limited and difficult to obtain, HTHP experiments play a crucial role in Earth science research.

[0003] Under modern scientific and technological conditions, high-temperature and high-pressure experimental equipment is an important tool for simulating the Earth's internal conditions, studying high-temperature and high-pressure geological processes, and determining physicochemical parameters in geology. Among these, the rapid quenching and cold-sealing autoclave, as a crucial piece of high-temperature and high-pressure equipment, plays a vital role in simulating physicochemical reactions within the Earth's crust, especially magma-hydrothermal processes. Pressure control is critical for operating the rapid quenching and cold-sealing autoclave. Currently, pressure regulation in cold-sealing autoclaves involves using air compressors or manual pressure pumps, and monitoring real-time experimental pressure using pressure gauges or pressure sensors. Methods for pressure regulation and monitoring mainly include air compression pressurization and depressurization, manual pump pressurization and depressurization, pressure gauge monitoring, and sensor monitoring. However, existing pressure regulation and monitoring methods have the following limitations:

[0004] (1) Although the compressed air pump pressurizes the entire high-pressure reactor quickly, it is difficult to control the rate. When depressurizing, the pressure relief valve is used to release the pressure, but fine adjustment is still not possible.

[0005] (2) Pressure gauges usually cannot read accurate pressure values. Later pressure sensors have been developed to display pressure values ​​electronically, but they lack monitoring of the pressure values ​​of each reactor. To read the pressure value inside the reactor in the experiment, the needle valve needs to be opened for detection.

[0006] (3) High temperature and high pressure experiments usually last for several days to more than ten days. During this period, the pressure value changes of each autoclave can only be recorded by human multiple times. There is no device for continuous automatic pressure recording.

[0007] In summary, the pressure control systems of rapid quenching and cold sealing autoclaves used by predecessors are relatively simple, with a single pressure boosting method. The pressure control is difficult to meet the requirements of precise experiments, and the pressure control accuracy is low, making it impossible to independently monitor the pressure of a single autoclave. Summary of the Invention

[0008] The purpose of this invention is to provide a pressure control device and method for a high-temperature, high-pressure reactor. More specifically, it aims to provide a pressure control device and method for a high-temperature, high-pressure reactor that combines automatic and manual fine-tuning. This invention represents an upgrade design to the pressure control system of a rapid quenching and cold-sealing high-pressure reactor. The improved system facilitates pressure debugging and control, further enhances pressure accuracy, and makes the pressure more stable and visible during experiments, which is of positive significance for experimental research. To achieve the above objectives, this invention provides the following technical solution:

[0009] This invention provides a pressure control device for a high-temperature, high-pressure reactor. The device includes: an automatic pressurization unit, a manual pressurization unit, a temperature and pressure control unit, and a temperature and pressure control panel; wherein...

[0010] A first valve, a first pressure gauge, a second valve, and a second pressure gauge are sequentially arranged between the automatic pressurization unit and the manual pressurization unit.

[0011] The pipeline containing the temperature and pressure control unit is connected between the first pressure gauge and the second valve via a tee. The pipeline is also equipped with a first pressure relief valve, a third pressure gauge, and a main valve. The main valve is equipped with a first pressure sensor.

[0012] The temperature and pressure control panel is connected to the automatic pressurization unit, the manual pressurization unit, and the temperature and pressure control unit via wires.

[0013] Furthermore, the automatic pressurization unit includes an air compressor, a pressure pump, and a first water tank, wherein the first water tank is disposed between the air compressor and the pressure pump.

[0014] Furthermore, the manual pressurization unit includes: a hand pump, a hand crank pump, and a second water tank; wherein the hand pump and the hand crank pump are connected in parallel, the hand pump and the second water tank are connected in series and a third valve is provided in between, and the hand crank pump and the second water tank are connected in series and a fourth valve is provided in between.

[0015] Furthermore, the temperature and pressure control unit includes multiple sets of temperature and pressure control devices, and each set of temperature and pressure control devices is connected in parallel; wherein, the first temperature and pressure control device includes a first annular furnace, a first high-pressure vessel and a fifth valve connected in sequence, and the fifth valve is equipped with a second pressure sensor.

[0016] Furthermore, a tee is provided between the second valve and the second pressure gauge, and the second pressure relief valve is connected to the second water tank through the tee.

[0017] Furthermore, the temperature and pressure control panel includes a display for showing the monitored pressure and temperature data.

[0018] Based on the above-described apparatus, the present invention also provides a pressure control method for a high-temperature and high-pressure reactor, the method comprising the following steps:

[0019] Step S1: Initially pressurize the entire device; the initial pressurization method includes: automatic pressurization or manual pressurization.

[0020] Step S2: During the heating process, the pressure of the entire device is controlled by manual pressurization.

[0021] Step S3: Monitor the pressure during the temperature rise and pressure control process and the experimental process;

[0022] Step S4: Record and export pressure sensor data;

[0023] Step S5: Repeat the process of steps S1 to S4 to perform pressure control and monitoring during the initial pressurization, temperature control, high-temperature test, and quenching test.

[0024] The present invention also provides an electronic device, comprising:

[0025] One or more processors;

[0026] Storage device for storing one or more programs;

[0027] When the one or more programs are executed by the one or more processors, the one or more processors implement the pressure control method for the high-temperature and high-pressure reactor described above.

[0028] The present invention also provides a storage medium containing computer-executable instructions, which, when executed by a computer processor, are used to perform the pressure control method for the high-temperature and high-pressure reactor described above.

[0029] The technical effects and advantages of this invention are as follows:

[0030] 1. This invention allows for easy and flexible increase and adjustment of the pressure in a high-pressure reactor through automatic and manual pressure control systems, and combines coarse and fine adjustment methods for more precise pressure control.

[0031] 2. This invention uses multiple pressure gauges and pressure sensors to simultaneously monitor the real-time pressure at different locations and in each autoclave. It also has a pressure recording function, allowing users to view the real-time and historical curves of different pressure sensors and export and save the data.

[0032] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of a pressure control device for a high-temperature and high-pressure reactor provided by the present invention;

[0035] Figure 2 A flow chart of a pressure control method for a high-temperature and high-pressure reactor provided by the present invention;

[0036] Figure 3 A schematic diagram of an electronic device provided by the present invention;

[0037] Reference numerals: 1. Air compressor; 2. Pressure pump; 3. First water tank; 4. Main valve; 5. First pressure relief valve; 6. First valve; 7. Second valve; 8. Second pressure relief valve; 9. Hand pump; 10. Hand crank pump; 11. Second water tank; 12. Third valve; 13. Fourth valve; 14. First annular furnace; 15. First autoclave; 16. First pressure gauge; 17. Second pressure gauge; 18. Third pressure gauge; 19. First pressure sensor; 20. Second pressure sensor; 21. Fifth valve; 22. Temperature and pressure control panel. Detailed Implementation

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] To address the shortcomings of existing technologies, this invention discloses a pressure control device for a high-temperature, high-pressure reactor. Figure 1 This is a schematic diagram of a pressure control device for a high-temperature and high-pressure reactor provided by the present invention, as shown below. Figure 1 As shown, the device includes: an automatic pressurization unit, a manual pressurization unit, a temperature and pressure control unit, and a temperature and pressure control panel 22; wherein,

[0040] The automatic pressurization unit includes: an air compressor 1, a pressure pump 2, and a first water tank 3, wherein the first water tank 3 is disposed between the air compressor 1 and the pressure pump 2;

[0041] The manual pressurization unit includes a hand pump 9, a hand crank pump 10, and a second water tank 11. The hand pump 9 and the hand crank pump 10 are connected in parallel, the hand pump 9 and the second water tank 11 are connected in series and a third valve 12 is provided in the middle, and the hand crank pump 10 and the second water tank 11 are connected in series and a fourth valve 13 is provided in the middle.

[0042] The temperature and pressure control unit includes multiple sets of temperature and pressure control devices, and each set of temperature and pressure control devices is connected in parallel; wherein the first temperature and pressure control device includes a first annular furnace 14, a first high-pressure vessel 15 and a fifth valve 21 connected in sequence, and the fifth valve 21 is equipped with a second pressure sensor 20.

[0043] A first valve 6, a first pressure gauge 16, a second valve 7, and a second pressure gauge 17 are sequentially arranged between the automatic pressurization unit and the manual pressurization unit; and a three-way valve is provided between the second valve 7 and the second pressure gauge 17, and the second pressure relief valve 8 is connected to the second water tank 11 through the three-way valve.

[0044] The pipeline containing the heating and pressurizing control unit is connected between the second valve 7 and the first pressure gauge 16 via a tee. The pipeline is sequentially equipped with a first pressure relief valve 5, a third pressure gauge 18 and a main valve 4. The main valve 4 is equipped with a first pressure sensor 19.

[0045] The temperature and pressure control panel 22 is connected to the automatic pressurization unit, the manual pressurization unit, and the temperature and pressure control unit via wires. The temperature and pressure control panel 22 includes a display, and each pressure sensor and thermocouple directly measures the pressure and temperature inside the autoclave, and the values ​​are transmitted to the display panel via wires.

[0046] Based on the above-described apparatus, the present invention also discloses a pressure control method for a high-temperature and high-pressure reactor. Figure 2 A flowchart of a pressure control method for a high-temperature and high-pressure reactor provided by the present invention is shown below. Figure 2 As shown, the method includes the following steps:

[0047] Step S1: Initially pressurize the entire device; the initial pressurization method includes: automatic pressurization or manual pressurization; wherein,

[0048] The specific steps for automatically pressurizing the device are as follows:

[0049] Step S1.1: Connect the air compressor 1, pressure pump 2 and first water tank 3 to the main pipeline, and fill the water tank with distilled water;

[0050] Step S1.2: Start the air compressor 1, and at the same time close the main valve 4 and the third pressure relief valve 7 connected to the main pipeline and the pressure pump 2, and open the first pressure relief valve 5 and the first valve 6 to discharge the air from the pressure pump 2 and the pipeline.

[0051] Step S1.3: Close the first pressure relief valve 5 and open the main pipeline valve, i.e., the main valve 4, to pressurize the entire device. If you want to pressurize to a higher pressure after the pressurization stops, you can increase the pressure value of the air compressor 1 to pressurize the entire device to about 200-220 MPa.

[0052] Step S1.4: Close the main valve 4 and open the first pressure relief valve 5 to drain the water from the pressure pump 2.

[0053] The specific steps for manually pressurizing the device are as follows:

[0054] Step S1.1: Close the first valve 6 between the automatic pressurization unit and the manual pressurization unit, and fill the second water tank 11 in the manual pressurization unit with distilled water;

[0055] Step S1.2: Continuously press the hand pump 9 to raise the pressure of the entire device to about 100-110 MPa;

[0056] Step S1.3: If a higher pressure is required, close the third valve 12 between the hand pump 9 and the hand-cranked pump 10, and use the hand-cranked pump 10 to rotate to pressurize the entire device to about 200-220 MPa.

[0057] Step S1.4: After pressurization is completed, close the main valve 4 and open the second pressure relief valve 8 to release the pressure in the manual pressurization unit.

[0058] Step S2: During the heating process, the pressure of the entire device is controlled manually by applying pressure.

[0059] Step S2.1: To more accurately control the pressure during the heating process, a hand-operated pump 10 is mainly used for pressure control during the heating process, and the pressure is eventually adjusted to the target pressure. Before heating, the main valve 4 is opened to connect the first high-pressure vessel 15 pipeline of the main pipeline to the hand-operated pump 9, and the pressure is set to a suitable value, such as the initial pressure of about 100-110 MPa if the target pressure is 200 MPa.

[0060] Step S2.2: Then, the first high-pressure vessel 15 is heated by heating the first annular furnace 14. Due to the increase in temperature, the pressure medium water inside the first high-pressure vessel 15 expands, and the pressure inside the device increases. At this time, the hand pump 10 can be finely adjusted to increase or decrease the pressure according to the temperature change inside the first high-pressure vessel 15, so as to achieve a reasonable heating and pressurization process.

[0061] It should be noted that the structure consisting of the first annular furnace 14, the first high-pressure vessel 15, the second pressure sensor 20, and the third valve 21 in the temperature and pressure control unit can be one or more sets combined. Figure 1 Five combinations are shown in the image.

[0062] Step S2.3: When the pressure in the system is about to exceed the target pressure, the pressure can be reduced by hand pump 10; when hand pump 10 reaches the top and cannot release pressure, the main valve 4 can be closed, the first pressure relief valve 5 can be opened to reduce the internal pressure of hand pump 10, and the hand pump 10 can be adjusted to a suitable pressure position. Then, the main valve 4 can be opened to continue precise pressure control.

[0063] Step S3: Monitor the pressure during the temperature rise and pressure control process and the experimental process:

[0064] Step S3.1: The automatic pressurization unit and the manual pressurization unit are equipped with a first pressure gauge 16 and a second pressure gauge 17 for real-time pressure monitoring, while the main pipeline is equipped with a third pressure gauge 18 and a first pressure sensor 19 to monitor the overall pressure.

[0065] Step S3.2 During the heating and pressurization process, the pressure changes of different pipelines can be observed in real time through the first pressure gauge 16, the second pressure gauge 17, the third pressure gauge 18 or the first pressure sensor 19 and the second pressure sensor 20 connected to each pipeline.

[0066] Step S3.3: After the heating and pressurization are completed, use the hand pump 10 to adjust to the target pressure, and then close the valve corresponding to each high-pressure vessel in the heating and pressurization control unit. In this way, the pressure sensor connected to each high-pressure vessel will display the pressure value inside the high-pressure vessel.

[0067] Step S3.4: Periodically read, record, and adjust the pressure value until the experiment ends.

[0068] Step S4: Record and export pressure sensor data:

[0069] The temperature and pressure control panel 22 can read the values ​​of the pressure sensors connected to the main pipeline and each autoclave. It can also display real-time pressure change trend graphs, and present one or more sets of pressure change curves over time by checking and deselecting options.

[0070] After the experiment, the historical pressure change curve can be viewed through the temperature and pressure control panel 22 to analyze the impact of the pressure changes experienced during the experiment. Simultaneously, the text data of pressure and time from the pressure sensor can be exported via USB flash drive for further analysis on an office computer.

[0071] Step S5: Repeat the process of steps S1 to S4 to perform pressure control and monitoring during the initial pressurization, temperature control, high-temperature test, and quenching test.

[0072] It should be noted that if a leak occurs in the autoclave during the high-temperature experiment, the experiment must be terminated. Afterward, the autoclave must be replaced and steps S1 to S4 must be repeated to continue the experiment.

[0073] Based on the same inventive concept, the present invention also provides an electronic device. Figure 3 A schematic diagram of an electronic device provided by the present invention, such as... Figure 3 As shown, the electronic device includes at least one processor 301, at least one communication interface 302, at least one memory 303, and at least one communication bus 304; wherein the processor 301, communication interface 302, and memory 303 communicate with each other through the communication bus 304.

[0074] Memory 303 stores computer programs;

[0075] The processor 301 is used to execute the program stored in the memory 303 to implement the pressure control method of the high-temperature and high-pressure reactor.

[0076] Optionally, the communication interface can be an interface of a communication module, such as the interface of a GSM module; the processor may be a CPU, an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention. The memory may include high-speed RAM and may also include non-volatile memory, such as at least one disk storage device. The memory stores a program, and the processor calls the program stored in the memory to execute some or all of the above-described method embodiments.

[0077] Based on the same inventive concept, the present invention also provides a computer-readable storage medium storing a computer program, which, when executed, implements some or all of the above-described method embodiments. Optionally, the storage medium may be a non-transitory computer-readable storage medium, such as a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device.

[0078] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pressure control device for a high-temperature, high-pressure reactor, characterized in that, The device includes: an automatic pressurization unit, a manual pressurization unit, a temperature and pressure control unit, and a temperature and pressure control panel (22); wherein, A first valve (6), a first pressure gauge (16), a second valve (7), and a second pressure gauge (17) are sequentially arranged between the automatic pressurization unit and the manual pressurization unit; The pipeline where the heating and pressurizing control unit is located is connected between the first pressure gauge (16) and the second valve (7) via a tee. The pipeline is provided with a first pressure relief valve (5), a third pressure gauge (18) and a main valve (4) in sequence. The main valve (4) is equipped with a first pressure sensor (19). The temperature and pressure control panel (22) is connected to the automatic pressurization unit, the manual pressurization unit, and the temperature and pressure control unit via wires.

2. The pressure control device for a high-temperature and high-pressure reactor according to claim 1, characterized in that, The automatic pressurization unit includes an air compressor (1), a pressure pump (2), and a first water tank (3), wherein the first water tank (3) is disposed between the air compressor (1) and the pressure pump (2).

3. A pressure control device for a high-temperature and high-pressure reactor according to claim 1 or 2, characterized in that, The manual pressurization unit includes: a hand pump (9), a hand crank pump (10), and a second water tank (11); wherein the hand pump (9) and the hand crank pump (10) are connected in parallel, the hand pump (9) and the second water tank (11) are connected in series and a third valve (12) is provided in the middle, and the hand crank pump (10) and the second water tank (11) are connected in series and a fourth valve (13) is provided in the middle.

4. The pressure control device for a high-temperature and high-pressure reactor according to claim 2, characterized in that, The heating and pressurization control unit includes multiple heating and pressurization control devices, and each heating and pressurization control device is connected in parallel; wherein, the first heating and pressurization control device includes a first ring furnace (14), a first high-pressure vessel (15) and a fifth valve (21) connected in sequence, and the fifth valve (21) is equipped with a second pressure sensor (20).

5. The pressure control device for a high-temperature and high-pressure reactor according to claim 1, characterized in that, A tee is provided between the second valve (7) and the second pressure gauge (17), and the second pressure relief valve (8) is connected to the second water tank (11) through the tee.

6. The pressure control device for a high-temperature and high-pressure reactor according to claim 1, characterized in that, The temperature and pressure control panel (22) includes a display for showing the monitored pressure and temperature data.

7. A pressure control method for a high-temperature, high-pressure reactor, wherein the method employs the apparatus described in any one of claims 1-6, characterized in that, The method includes the following steps: Step S1: Initially pressurize the entire device; the initial pressurization method includes: automatic pressurization or manual pressurization. Step S2: During the heating process, the pressure of the entire device is controlled by manual pressurization. Step S3: Monitor the pressure during the temperature rise and pressure control process and the experimental process; Step S4: Record and export pressure sensor data; Step S5: Repeat the process of steps S1 to S4 to perform pressure control and monitoring during the initial pressurization, temperature control, high-temperature test, and quenching test.

8. An electronic device, characterized in that, include: One or more processors; Storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the pressure control method for the high-temperature and high-pressure reactor as described in claim 7.

9. A storage medium containing computer-executable instructions, characterized in that, The computer-executable instructions, when executed by a computer processor, are used to perform the pressure control method for the high-temperature and high-pressure reactor as described in claim 7.

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