An ultrahigh pressure pressure boosting device and method

Abstract

The application provides a kind of superhigh pressure pressure supercharger and method, supercharger, at least including one-stage supercharger and two-stage supercharger, the outlet end of the one-stage supercharger is communicated two-stage supercharger by high pressure pipeline one, the two-stage supercharger is communicated with superhigh pressure working unit by high pressure pipeline two, the inlet end of the one-stage supercharger is communicated with normal pressure system by high pressure pipeline three, and the normal pressure system is used for medium supplement to one-stage supercharger, two-stage supercharger and superhigh pressure working unit;One-way valve one is arranged on the high pressure pipeline one, and one-way valve two and pressure sensor are arranged on the high pressure pipeline two.The application solves the problem that the stroke of traditional superhigh pressure system supercharging is limited, the effective supercharging volume is limited, and the process applicability is poor;Realize the continuous supercharging of superhigh pressure system, and the container of simultaneous supercharging is no longer limited, and the applicability of supercharging system can be improved, and a little leakage can be overcome to continue supercharging or pressure maintaining.

Description

Technical Field

[0001] This invention belongs to the field of ultra-high pressure hydraulic technology, specifically relating to an ultra-high pressure boosting device and method, which is applicable to boosting pressure in ultra-high pressure hydraulic equipment such as ultra-high pressure isostatic presses. Background Technology

[0002] Pressurization is fundamental to the operation of ultra-high pressure (UHPP) equipment. Currently, most UHPP equipment uses a single pressurizer, primarily a single-stroke pressurization method, similar to the principle of a syringe. This typically involves direct pressurization using a piston-type hydraulic cylinder, with the pressurization ratio being the ratio of the cylinder area to the piston rod area. The advantages of this method are its relatively simple pressurization principle and ease of control. However, its disadvantages include a limited pressurization stroke, resulting in a limited effective pressurization volume dependent on the piston rod area and cylinder stroke. Furthermore, even a small leak can prevent pressurization or pressure maintenance.

[0003] Therefore, there is an urgent need for a completely new pressurization method to solve the above problems, which can achieve continuous pressurization, while also removing restrictions on the pressurized container, improving the applicability of the pressurization system, and overcoming minor leaks to continue pressurization or pressure maintenance. Summary of the Invention

[0004] The purpose of this invention is to provide an ultra-high pressure boosting device to solve the above-mentioned technical problems existing in the prior art.

[0005] Another objective of this invention is to provide an ultra-high pressure boosting method that can achieve staged boosting and continuous boosting.

[0006] Therefore, the technical solution provided by the present invention is as follows: An ultra-high pressure boosting device includes at least a primary booster and a secondary booster. The outlet of the primary booster is connected to the secondary booster via a high-pressure pipeline. The secondary booster is connected to an ultra-high pressure working unit via a high-pressure pipeline. The inlet of the primary booster is connected to an atmospheric pressure system via a high-pressure pipeline. The atmospheric pressure system is used to replenish the medium for the primary booster, the secondary booster, and the ultra-high pressure working unit. One-way valve one is provided on the high-pressure pipeline one, and one-way valve two and pressure sensor are provided on the high-pressure pipeline two.

[0007] It also includes a control system, wherein the first-stage booster, the second-stage booster, and the pressure sensor are all electrically connected to the control system.

[0008] The first-stage booster is a reciprocating booster structure. The first-stage booster includes a left high-pressure chamber, a right high-pressure chamber, and a first-stage booster control valve group. The first-stage booster control valve group is used to control the reciprocating boosting and reversing of the first-stage booster. The left high-pressure chamber is connected to a left inlet check valve and a left outlet check valve, respectively. The right high-pressure chamber is connected to a right inlet check valve and a right outlet check valve, respectively. The first-stage booster control valve group is electrically connected to the control system.

[0009] The secondary booster is a single-pass booster structure. The secondary booster includes a high-pressure chamber and a primary booster control valve group. The secondary booster control valve group is electrically connected to the control system.

[0010] The atmospheric pressure system includes a medium tank, an atmospheric pressure pump, an overflow valve, and a low-pressure return pipe. One end of the atmospheric pressure pump is connected to the medium tank, and the other end of the atmospheric pressure pump is connected to the high-pressure pipeline. One end of the low-pressure return pipe is connected to the medium tank, and the other end of the low-pressure return pipe is connected to the high-pressure pipeline. The overflow valve is located on the low-pressure return pipe.

[0011] A method for increasing ultra-high pressure, employing an ultra-high pressure boosting device, includes the following steps: Step 1) Start the atmospheric pressure system and adjust the pressure to P0 through the atmospheric pressure pump and overflow valve of the atmospheric pressure system; Step 2) After the atmospheric pressure pump starts, the medium is filled into the left and right high pressure chambers of the first-stage booster through the high pressure pipe 3. After filling, the medium is filled into the second-stage booster and the ultra-high pressure working unit through the high pressure pipe 1 and the high pressure pipe 2 respectively, until the pressure detected by the pressure sensor is P0. Step 3) After the pressure reaches P0, the first-stage booster starts to work, pressurizing one side while replenishing the liquid on the other side, repeating the cycle until the pressure detected by the pressure sensor is consistent with the set pressure P1 that the first-stage booster needs to reach. Step 4) After the pressure reaches P1, the secondary booster starts working until the pressure measured by the pressure sensor reaches the working pressure P2 required by the ultra-high pressure working unit, thus realizing ultra-high pressure boosting.

[0012] Step 3) The specific process is as follows: The pressure sensor detects the pressure of the medium after pressurization in real time and sends it to the control system. When the pressure reaches P0, the control system sends a signal to the first-stage pressurization control valve group. The first-stage pressurization valve group controls the first-stage pressurizer to pressurize. During the pressurization process, when the left high-pressure chamber is pressurized, the left inlet check valve is closed. When the pressure of the left high-pressure chamber is higher than the pressure of the ultra-high pressure pipeline, the left outlet check valve opens. At this time, there is no pressure in the right high-pressure chamber, and the atmospheric pressure system continuously replenishes the medium to the right high-pressure chamber. Afterwards, the right high-pressure chamber is pressurized, and the atmospheric pressure system continuously replenishes the medium into the right high-pressure chamber. This process is repeated until the pressure detected by the pressure sensor matches the set pressure P1 required by the first-stage booster.

[0013] In step 4), after the pressure reaches P1, the control system sends a signal to the secondary booster control valve group, which controls the secondary booster to increase the pressure.

[0014] After the pressure reaches P2 in step 4), the secondary booster and the primary booster work together to maintain the pressure. During the pressure maintenance process, if P1 < P < P2, only the secondary booster needs to work to increase the pressure to P2. If P0 < P < P1, the first-stage booster will work first to increase the pressure back to P1, and then the second-stage booster will start working, repeating step 4). If P < P0, the atmospheric pressure pump will start working first, and steps 2) to 4) will be repeated.

[0015] The beneficial effects of this invention are: The ultra-high pressure boosting device provided by this invention achieves staged pressure boosting through a combination of a primary booster and a secondary booster. Each stage is connected in series, and different hydraulic pumps or boosters complete the pressure boosting in different pressure ranges.

[0016] This invention solves the problems of limited pressurization stroke, limited effective pressurization volume, and poor process applicability in traditional ultra-high pressure systems; it enables continuous pressurization of ultra-high pressure systems, while removing restrictions on the pressurization container, and improves the applicability of the pressurization system, enabling it to continue pressurization or pressure holding even with minor leaks. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of one embodiment of the present invention; Figure 2 This is a flowchart of the present invention.

[0018] In the diagram: 1. First-stage booster; 1-1. Left inlet check valve; 1-2. Right inlet check valve; 1-3. Left outlet check valve; 1-4. Right outlet check valve; 1-5. First-stage booster control valve assembly; 2. Second-stage booster; 2-1. Second-stage booster control valve assembly; 3. High-pressure pipeline one; 4. Ultra-high-pressure working unit; 5. High-pressure pipeline two; 6. Pressure sensor; 7. Check valve two; 8. Check valve one; 9. Atmospheric pressure system; 9-1. Atmospheric pressure pump; 9-2. High-pressure pipeline three; 9-3. Medium tank; 9-4. Overflow valve; 9-5. Low-pressure return pipe. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0020] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided to fully and completely disclose the invention and to fully convey its scope to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the drawings is not intended to limit the invention. In the drawings, the same units / elements are referred to by the same reference numerals.

[0021] Unless otherwise stated, the terms used herein (including technical terms) have their common meaning as understood by one of ordinary skill in the art. Furthermore, it is understood that terms defined in commonly used dictionaries should be understood to have a meaning consistent with the context of their relevant field, and not to be interpreted as having an idealized or overly formal meaning.

[0022] Example 1 This embodiment provides an ultra-high pressure boosting device, which includes at least a primary booster 1 and a secondary booster 2. The outlet end of the primary booster 1 is connected to the secondary booster 2 through a high-pressure pipeline 3. The secondary booster 2 is connected to an ultra-high pressure working unit 4 through a high-pressure pipeline 5. The inlet end of the primary booster 1 is connected to an atmospheric pressure system 9 through a high-pressure pipeline 9-2. The atmospheric pressure system 9 is used to replenish the medium for the primary booster 1, the secondary booster 2 and the ultra-high pressure working unit 4. One-way valve 8 is installed on high-pressure pipeline 3, and one-way valve 7 and pressure sensor 6 are installed on high-pressure pipeline 5. One-way valve 8 is installed in series on high-pressure pipeline 3, opening from the primary booster 1 to the secondary booster 2, and closing in the opposite direction. One-way valve 7 opens from the secondary booster 2 to the ultra-high pressure working unit 4, and closes in the opposite direction.

[0023] This invention achieves staged pressurization by combining a primary booster 1 and a secondary booster 2, thereby meeting the working pressure requirements of the ultra-high pressure working unit 4.

[0024] Example 2 Based on Example 1, this example provides an ultra-high pressure boosting device, which also includes a control system. The first-stage booster 1, the second-stage booster 2, and the pressure sensor 6 are all electrically connected to the control system.

[0025] The control system monitors the pressure of pressure sensor 6 in real time, and then controls the pressure of primary booster 1 and secondary booster 2 according to the set pressure of primary booster 1 and secondary booster 2.

[0026] Example 3 Based on Example 1, this example provides an ultra-high pressure boosting device, such as... Figure 1 As shown, the first-stage booster 1 is a reciprocating booster structure. The first-stage booster 1 includes a left high-pressure chamber, a right high-pressure chamber, and a first-stage booster control valve group 1-5. The first-stage booster control valve group 1-5 is used to control the reciprocating boosting and reversing of the first-stage booster 1. The left high-pressure chamber is connected to a left inlet check valve 1-1 and a left outlet check valve 1-3. The right high-pressure chamber is connected to a right inlet check valve 1-2 and a right outlet check valve 1-4. The first-stage booster control valve group 1-5 is electrically connected to the control system.

[0027] The left inlet check valve 1-1 and the left outlet check valve 1-3 are connected to the left booster cylinder in pairs; the right inlet check valve 1-2 and the right outlet check valve 1-4 are connected to the right booster cylinder in pairs. The first-stage booster 1 is a reciprocating booster; during boosting, when one side is boosted, the other side is replenished. The valve group of the first-stage booster 1 controls the boosting of the first-stage booster 1. When the left high-pressure chamber of the first-stage booster 1 is boosted, the left inlet check valve is closed. When the pressure in the left high-pressure chamber exceeds the pressure in the ultra-high-pressure pipeline 1, the left outlet check valve 1-3 opens.

[0028] Work process: Connect the ultra-high pressure booster device and ensure a reliable connection. 2) The atmospheric pressure system 9 starts working, and the atmospheric pressure pump 9-1 starts to fill the high pressure chambers at both ends of the first-stage booster 1 with medium through the high pressure pipe 3. After the high pressure chamber of the first-stage booster 1 is filled, the second-stage booster 2 and the ultra-high pressure working unit 4 are filled with medium through the high pressure pipe 1 3 and the high pressure pipe 2 5 respectively, until the pressure detected by the pressure sensor 6 is consistent with the pressure output by the atmospheric pressure pump 9-1.

[0029] 3) The first-stage pressurization begins. The first-stage pressurizer 1 is a reciprocating pressurizer; when one side is pressurized, the other side is replenished. Specifically: the valve group of the first-stage pressurizer 1 controls the pressurization of the first-stage pressurizer 1. When the left high-pressure chamber of the first-stage pressurizer 1 is pressurized, the inlet check valve on the left is closed. When the pressure in the left high-pressure chamber exceeds the pressure in the ultra-high-pressure pipeline 1, the outlet check valve opens. Simultaneously, there is no pressure in the right high-pressure chamber, and the atmospheric pressure system 9 continuously replenishes the medium into the right high-pressure chamber. The same applies when the right side is pressurized. This process repeats until the pressure detected by the pressure sensor 6 matches the set pressure required by the first-stage pressurizer 1.

[0030] 4) The second-stage booster 2 starts working. The second-stage booster 2 is a single-pass type. Since the first-stage booster 1 has already completed part of the boosting, the boosting volume requirement for the second-stage booster is not so high. The second-stage booster 2 only needs a very small stroke to further compress the medium for boosting. Since the one-way valve 1 is closed to the first-stage booster 1, the boosted medium can only flow to the ultra-high pressure working unit 4 through the one-way valve 2 until the pressure measured by the pressure sensor 6 is consistent with the required working pressure.

[0031] Example 4 Based on Example 1, this example provides an ultra-high pressure boosting device. The secondary booster 2 is a single-pass boosting structure. The secondary booster 2 includes a high-pressure chamber and a primary boosting control valve group 1-5. The secondary boosting control valve group 2-1 is electrically connected to the control system.

[0032] Since the first-stage booster 1 has already completed part of the boosting, the boosting volume requirement for the second-stage booster is not so high. The second-stage booster 2 only needs a very small stroke to further compress the medium for boosting. Since the one-way valve 2 7 is closed to the first-stage booster 1, the boosted medium can only flow to the ultra-high pressure working unit 4 through the one-way valve 2 7 until the pressure measured by the pressure sensor 6 is consistent with the required working pressure.

[0033] Example 5 Based on Example 1, this example provides an ultra-high pressure boosting device, such as... Figure 1 As shown, the atmospheric pressure system 9 includes a medium tank 9-3, an atmospheric pressure pump 9-1, an overflow valve 9-4, and a low-pressure return pipe 9-5. One end of the atmospheric pressure pump 9-1 is connected to the medium tank 9-3, and the other end of the atmospheric pressure pump 9-1 is connected to the high-pressure pipeline. One end of the low-pressure return pipe 9-5 is connected to the medium tank 9-3, and the other end of the low-pressure return pipe 9-5 is connected to the high-pressure pipeline. The overflow valve 9-4 is located on the low-pressure return pipe 9-5.

[0034] During the pressurization process, the atmospheric pressure system 9 is used for primary pressurization, secondary pressurizer 2, and filling of the ultra-high pressure working unit 4. During the replenishment process, the excess medium will overflow through the overflow valve 9-4 and then return to the medium tank 9-3 through the low-pressure return pipe 9-5. Among them, the high-pressure pipeline 9-2 connects the atmospheric pressure pump 9-1 and the two inlet check valves of the primary pressurizer 1 (left inlet check valve 1-1 and right inlet check valve 1-2).

[0035] In this invention, ultra-high pressure refers to not less than 1000MPa, normal pressure in normal pressure system 9 refers to 30MPa, and low pressure in low pressure return pipe 9-5 refers to below 5MPa.

[0036] Example 6 This embodiment provides an ultra-high pressure boosting method, which employs an ultra-high pressure boosting device and includes the following steps: Step 1) Start the atmospheric pressure system 9 and adjust the pressure to P0 through the atmospheric pressure pump 9-1 and overflow valve 9-4 of the atmospheric pressure system 9; Step 2) After the atmospheric pressure pump 9-1 starts, it fills the left and right high pressure chambers of the first-stage booster 1 with medium through the high pressure pipe 3. After filling, it fills the second-stage booster 2 and the ultra-high pressure working unit 4 with medium through the high pressure pipe 1 3 and the high pressure pipe 2 5 respectively, until the pressure detected by the pressure sensor 6 is P0. Step 3) After the pressure reaches P0, the first-stage booster 1 starts to work, pressurizing one side while replenishing the liquid on the other side, repeating the cycle until the pressure detected by the pressure sensor is consistent with the set pressure P1 that the first-stage booster 1 needs to reach. Step 4) After the pressure reaches P1, the secondary booster 2 starts working until the pressure measured by the pressure sensor 6 reaches the working pressure P2 required by the ultra-high pressure working unit 4, thus realizing ultra-high pressure boosting.

[0037] Example 7 Based on Example 6, this example provides an ultra-high pressure boosting method. Step 3) is as follows: Pressure sensor 6 detects the pressure of the boosted medium in real time and sends it to the control system. When the pressure reaches P0, the control system sends a signal to the first-stage boosting control valve group 1-5. The first-stage boosting valve group controls the first-stage booster 1 to boost the pressure. During the boosting process, when the left high-pressure chamber is boosted, the left inlet check valve 1-1 is closed. When the pressure of the boosted left high-pressure chamber is higher than the pressure of the ultra-high pressure pipeline 3, the left outlet check valve 1-3 opens. At this time, there is no pressure in the right high-pressure chamber, and the atmospheric pressure system 9 continuously replenishes the medium into the right high-pressure chamber. Afterwards, the high-pressure chamber on the right is pressurized, and the atmospheric pressure system 9 continuously replenishes the medium into the high-pressure chamber on the right. This process is repeated until the pressure detected by the pressure sensor matches the pressure P1 that the first-stage booster 1 needs to achieve.

[0038] During this process, the atmospheric pressure system 9 continues to work, mainly to replenish the liquid in the first-stage booster 1. The excess medium will overflow through the overflow valve 9-4 and then return to the medium tank 9-3 through the low-pressure return pipe 9-5.

[0039] In step 4), after the pressure reaches P1, the control system sends a signal to the secondary booster control valve group 2-1, which controls the secondary booster 2 to boost the pressure.

[0040] like Figure 2As shown, after the pressure reaches P2 in step 4), the secondary booster 2 and the primary booster 1 work together to maintain the pressure. During the pressure maintenance process, if P1 < P < P2, only the secondary booster 2 needs to work to boost the pressure to P2. If P0 < P < P1, then the first-stage booster 1 will work first to increase the pressure back to P1, and then the second-stage booster 2 will start working, repeating step 4). If P < P0, then the atmospheric pressure pump 9-1 will start working first, and steps 2) - 4 will be repeated.

[0041] This invention firstly achieves staged pressurization by combining a hydraulic pump, a primary pressurizer 1, and a secondary pressurizer 2. Secondly, it solves the problems of limited pressurization stroke, limited effective pressurization volume, and poor process applicability in traditional ultra-high pressure systems. It enables continuous pressurization of ultra-high pressure systems, while removing restrictions on the pressurized container and improving the applicability of the pressurization system, allowing it to overcome minor leaks and continue pressurization or pressure holding.

[0042] The above examples are merely illustrative of the present invention and do not constitute a limitation on the scope of protection of the present invention. All designs that are the same as or similar to the present invention are within the scope of protection of the present invention.

Claims

1. An ultra-high pressure boosting device, suitable for boosting the pressure of ultra-high pressure hydraulic equipment, wherein the ultra-high pressure is not less than 1000 MPa, characterized in that: It includes at least an atmospheric pressure system, a first-stage booster, a second-stage booster, an ultra-high pressure working unit, pressure sensors, and a control system; The first-stage booster is a reciprocating booster structure, and the second-stage booster is a single-stage booster structure. The outlet of the first-stage booster is connected to the second-stage booster via a high-pressure pipeline, the second-stage booster is connected to the ultra-high-pressure working unit via a high-pressure pipeline, and the inlet of the first-stage booster is connected to the atmospheric pressure system via a high-pressure pipeline. The atmospheric pressure system is used to replenish the medium for the first-stage booster, the second-stage booster, and the ultra-high-pressure working unit. One-way valve one is provided on the high-pressure pipeline one. The direction of one-way valve one is to open from the first-stage booster to the second-stage booster and to close in the opposite direction. One-way valve two and the pressure sensor are provided on the high-pressure pipeline two. The direction of one-way valve two is to open from the second-stage booster to the ultra-high-pressure working unit and to close in the opposite direction. The primary booster, the secondary booster, and the pressure sensor are all electrically connected to the control system. The control system monitors the medium pressure P detected by the pressure sensor in real time and controls the primary and secondary boosters to increase pressure according to their set pressures. Specifically, when P reaches the output pressure P0 of the atmospheric pressure system, the control system controls the primary booster to increase pressure to P1; when P reaches P1, the control system controls the secondary booster to increase pressure to P2, where P2 is the working pressure of not less than 1000 MPa required by the ultra-high pressure working unit. During the pressure holding process after the pressure reaches P2, if P1 < P < P2, the control system controls the secondary booster to work and increase the pressure to P2; if P0 < P < P1, the control system first controls the primary booster to work and increase the pressure back to P1, and then controls the secondary booster to work and increase the pressure to P2; if P < P0, the control system first controls the atmospheric pressure pump of the atmospheric pressure system to replenish the liquid, and then controls the primary booster and the secondary booster in sequence to increase the pressure to P2. The first-stage booster includes a left high-pressure chamber, a right high-pressure chamber, and a first-stage booster control valve group. The first-stage booster control valve group is used to control the reciprocating boosting and reversing of the first-stage booster. The left high-pressure chamber is connected to a left inlet check valve and a left outlet check valve, respectively. The right high-pressure chamber is connected to a right inlet check valve and a right outlet check valve, respectively. The first-stage booster control valve group is electrically connected to the control system.

2. The ultra-high pressure boosting device according to claim 1, characterized in that: The left inlet check valve and the left outlet check valve are connected to the left high-pressure chamber in pairs, and the right inlet check valve and the right outlet check valve are connected to the right high-pressure chamber in pairs; during the pressurization process of the first-stage booster, when one high-pressure chamber is pressurized, the other high-pressure chamber is replenished by the atmospheric pressure system.

3. The ultra-high pressure boosting device according to claim 1, characterized in that: The secondary booster includes a high-pressure chamber and a secondary booster control valve group. The secondary booster control valve group is electrically connected to the control system. After the primary booster pressurizes the medium to P1, the secondary booster further compresses the medium for pressurization. When the one-way valve is closed in the reverse direction, the pressurized medium can only flow to the ultra-high pressure working unit through the one-way valve.

4. The ultra-high pressure boosting device according to any one of claims 1-3, characterized in that: The atmospheric pressure system includes a medium tank, an atmospheric pressure pump, an overflow valve, and a low-pressure return pipe. One end of the atmospheric pressure pump is connected to the medium tank, and the other end of the atmospheric pressure pump is connected to the high-pressure pipeline via a three-way connection. One end of the low-pressure return pipe is connected to the medium tank, and the other end of the low-pressure return pipe is connected to the high-pressure pipeline via a three-way connection. The overflow valve is located on the low-pressure return pipe.

5. A method for increasing ultra-high pressure, using the ultra-high pressure increasing device according to any one of claims 1-4, characterized in that, Includes the following steps: Step 1) Start the atmospheric pressure system and adjust the pressure to P0 through the atmospheric pressure pump and overflow valve of the atmospheric pressure system; Step 2) After the atmospheric pressure pump starts, the medium is filled into the left and right high pressure chambers of the first-stage booster through the high pressure pipeline 3. After filling, the medium is filled into the second-stage booster and the ultra-high pressure working unit through the high pressure pipeline 1 and the high pressure pipeline 2 respectively, until the pressure detected by the pressure sensor is P0. Step 3) After the pressure reaches P0, the first-stage booster starts working, pressurizing one side while replenishing the liquid on the other side, repeating the cycle until the pressure detected by the pressure sensor matches the set pressure P1 that the first-stage booster needs to reach. Step 4) After the pressure reaches P1, the secondary booster starts working until the pressure measured by the pressure sensor reaches the working pressure P2 required by the ultra-high pressure working unit, thereby realizing ultra-high pressure boosting; wherein, P2 is not less than 1000MPa.

6. The ultra-high pressure boosting method according to claim 5, characterized in that: Step 3) specifically includes: The pressure sensor detects the pressure of the pressurized medium in real time and sends it to the control system. When the pressure reaches P0, the control system sends a signal to the first-stage pressurization control valve group, which controls the first-stage pressurizer to pressurize. When the left high-pressure chamber is pressurized, the left inlet check valve is closed. When the pressure of the left high-pressure chamber is higher than the pressure of the high-pressure pipeline, the left outlet check valve opens. At this time, there is no pressure in the right high-pressure chamber, and the atmospheric pressure system continuously replenishes the medium into the right high-pressure chamber. After that, the right high-pressure chamber is pressurized, and the atmospheric pressure system continuously replenishes the medium into the left high-pressure chamber. This process is repeated until the pressure detected by the pressure sensor is consistent with the set pressure P1 that the first-stage pressurizer needs to reach.

7. The ultra-high pressure boosting method according to claim 5, characterized in that: In step 4), after the pressure reaches P1, the control system sends a signal to the secondary booster control valve group, which controls the secondary booster to boost the pressure. During the pressure holding process after the pressure reaches P2, if P1 < P < P2, only the secondary booster needs to work to boost the pressure to P2. If P0 < P < P1, the primary booster works first to boost the pressure back to P1, and then the secondary booster starts working, repeating step 4). If P < P0, the atmospheric pressure pump starts working first, repeating steps 2) to 4).

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