A supercritical liquid desuperheating and depressurization integrated device

Abstract

This invention discloses an integrated supercritical liquid desuperheating and depressurization device, comprising: a primary desuperheating and depressurization component, which includes a primary depressurization pipe and a primary desuperheating component. The primary depressurization pipe receives supercritical liquid from a connected supercritical liquid delivery pipe and transports the supercritical liquid to the next process. The primary desuperheating component is connected to the supercritical liquid delivery pipe. A secondary desuperheating and depressurization component, which includes a secondary depressurization component and a secondary desuperheating component. The secondary depressurization component receives supercritical liquid from the connected primary depressurization pipe and cools the supercritical liquid after depressurization by the secondary depressurization component. A tertiary desuperheating and depressurization component, which includes a tertiary mixing component and a tertiary mounting base. The tertiary mixing component is fitted outside the tertiary depressurization component. This invention features a reasonable structural design, small overall equipment size, low overall investment, high desuperheating and depressurization efficiency, energy saving during the desuperheating and depressurization process, low noise during the desuperheating and depressurization process, and safe and reliable operation.

Description

Technical Field

[0001] This invention relates to the field of desuperheating and decompression technology, and more specifically, to an integrated device for supercritical liquid desuperheating and decompression. Background Technology

[0002] Fluids with temperatures and pressures above their critical values ​​are called supercritical fluids. Supercritical fluids exist in a state where there is no clear gas-liquid interface; they are neither liquid nor gas. Because they are in a supercritical state, supercritical fluids are highly sensitive to changes in temperature and pressure, exhibiting unique physical properties. They possess good gas-like fluidity but have a much higher density, thus possessing many unique physicochemical properties.

[0003] For example, in practical applications, the critical temperature of supercritical water is 374.3℃ and the pressure is 22.064MPa. Supercritical fluids usually refer to high-temperature and high-pressure fluids. How to de-temperature and de-pressure high-temperature and high-pressure fluids in the production process has always been a difficult problem. At present, the de-temperature and de-pressure of supercritical fluids are mainly carried out by pressure reducing valves and high-temperature and high-pressure heat exchangers. However, when using pressure reducing valves, the valve core is easily damaged, the seal is not tight, and noise and cavitation are easily generated, posing a significant safety risk. When using high-temperature and high-pressure heat exchangers for heat exchange and de-temperature, there are problems such as long overall equipment, large footprint, and high investment. Summary of the Invention

[0004] To overcome the above-mentioned defects, the present invention provides an integrated supercritical liquid desuperheating and depressurization device, specifically adopting the following technical solution:

[0005] A supercritical liquid desuperheating and depressurization integrated device, comprising:

[0006] A primary cooling and pressure reducing device includes a primary pressure reducing pipe and a primary cooling device. The primary pressure reducing pipe receives supercritical liquid from a connected supercritical liquid delivery pipe and delivers the supercritical liquid to the next process. The primary cooling device is connected to the supercritical liquid delivery pipe and pumps cooling liquid into the primary pressure reducing pipe using the high-speed flow of the supercritical liquid as power.

[0007] A secondary depressurization and de-pressure reducing device is connected to the primary depressurization pipe. It includes a secondary depressurization device and a secondary depressurization device. The secondary depressurization device receives the supercritical liquid transported from the primary depressurization pipe to which it is connected, and the secondary depressurization device cools the supercritical liquid after it has been depressurized by the secondary depressurization device.

[0008] The third-stage desuperheating and depressurization component is connected to the second-stage depressurization component. It includes a third-stage mixing component and a third-stage mounting base. The third-stage mixing component is fitted outside the second-stage depressurization component to perform a third desuperheating and depressurization treatment on the supercritical liquid after the second-stage desuperheating and depressurization by the second-stage desuperheating and depressurization component. The third-stage mounting base is set on the third-stage mixing component to provide support for it.

[0009] Preferably, the primary pressure reducing tube includes a Venturi tube and a primary expansion tube. One end of the Venturi tube is connected to one end of the supercritical liquid delivery tube. The primary expansion tube is in the shape of a reducing tube, and the smaller end of the primary expansion tube is connected to the other end of the Venturi tube.

[0010] Preferably, the primary cooling component includes a cooling power component and a primary cooling liquid conveying component. The cooling power component is disposed on the supercritical liquid conveying pipe, and the primary cooling liquid conveying component is disposed on the cooling power component. The cooling power component includes a first cooling power pipe, a turbine housing, turbine blades, and a second cooling power pipe. One end of the first cooling power pipe is connected through to the supercritical liquid conveying pipe, the turbine housing is connected through to the other end of the first cooling power pipe, the turbine blades are embedded in the turbine housing, one end of the second cooling power pipe is connected through to the turbine housing, and the other end of the second cooling power pipe is connected through to the secondary cooling and pressure reducing component.

[0011] Preferably, the primary desuperheating fluid delivery component includes a pump housing, a drive shaft, a first drive gear, an impeller, a first desuperheating delivery pipe, and a second desuperheating delivery pipe. The pump housing is fixedly connected to the turbine housing. One end of the drive shaft penetrates into the pump housing, and the other end of the drive shaft penetrates into the turbine housing. The first drive gear is disposed on the other end of the drive shaft and meshes with a second drive gear on the turbine blade shaft. The impeller is disposed on one end of the drive shaft within the pump housing. One end of the first desuperheating delivery pipe is connected to the pump housing, and one end of the second desuperheating delivery pipe is connected to the pump housing. The other end of the second desuperheating delivery pipe is connected to the minimum diameter of the venturi tube.

[0012] Preferably, the secondary pressure reducing component includes a secondary pressure reducing pipe, a pressure reducing control component, and a secondary pressure reducing shell. The diameter of the secondary pressure reducing pipe is not less than the diameter of the large end of the primary expansion pipe. One end of the secondary pressure reducing pipe is connected to the other end of the primary expansion pipe, the other end of the secondary pressure reducing pipe is closed, and the sidewall of one end of the secondary pressure reducing pipe is connected to the other end of the second cooling power pipe.

[0013] Preferably, the pressure reduction control component includes a pressure reduction groove, a pressure reduction slider, a control transmission rod, a control fixing tube, and a magnetic coil. The pressure reduction groove is disposed on one end sidewall of the secondary pressure reduction tube, and a first through hole on the bottom of the pressure reduction groove communicates with a second through hole on the secondary pressure reduction tube. The pressure reduction slider is fitted into the pressure reduction groove. One end of the control transmission rod is connected to one end of the pressure reduction slider. The control fixing tube is disposed on the sidewall of the secondary pressure reduction tube, and one end of the control fixing tube is sleeved on the other end of the control transmission rod. The magnetic coil is embedded in the control fixing tube and sleeved on the control transmission rod. Multiple sets of the pressure reduction control components are evenly distributed along the circumference of the secondary pressure reduction tube.

[0014] Preferably, the sliding block on the side wall of the pressure-reducing slider is fitted into the sliding groove on the inner wall of the pressure-reducing slide groove.

[0015] Preferably, the secondary pressure relief shell is tubular, with an inner diameter larger than the outer diameter of the secondary pressure relief tube, and the secondary pressure relief shell is fixedly fitted onto both ends of the secondary pressure relief tube through fixing through holes on its two end faces.

[0016] Preferably, the secondary cooling component includes a first secondary cooling tube, a second secondary cooling tube, a second secondary cooling hose, a second secondary cooling nozzle, and a turbulence plate. One end of the first secondary cooling tube is connected to the second cooling delivery tube, and the other end of the first secondary cooling tube extends into the second secondary pressure reducing shell. The second secondary cooling tube is annular and is fitted onto multiple control fixing tubes, with the other end of the second secondary cooling tube connected to the first secondary cooling tube. One end of the second secondary cooling hose extends through the second secondary cooling tube, and the other end of the hose extends to the pressure reducing slider. Multiple second secondary cooling hoses correspond one-to-one with multiple pressure reducing sliders. The second secondary cooling nozzle is mounted on the pressure reducing slider, with one end connected to the other end of the hose and the other end extending beyond the free end of the pressure reducing slider. The turbulence plate is fixedly embedded in the second secondary pressure reducing shell via a first connecting rod and is fixedly fitted onto the outside of the second secondary pressure reducing tube via a second connecting rod.

[0017] Preferably, the three-stage mixing component includes a mixing guide plate, a mixing protective shell, a desuperheating liquid inlet pipe, and a desuperheating liquid outlet pipe. The mixing guide plate is spiral-shaped, with its inner ring fitted onto the secondary decompression shell. Multiple mixing guide plates are evenly distributed around the secondary decompression shell, and a third through hole is provided on the other end of the secondary decompression shell between adjacent mixing guide plates. The mixing protective shell is fixedly fitted onto one end of the secondary decompression pipe through a fourth through hole on one end face, and the inner wall of the mixing protective shell is connected to the outer ring of the mixing guide plate. At the same time, the other end face of the mixing protective shell is fixedly connected to the other end face of the secondary decompression pipe. One end of the desuperheating liquid inlet pipe passes through the other end of the mixing protective shell, and one end of the desuperheating liquid outlet pipe passes through and is connected to one end face of the mixing protective shell.

[0018] The present invention has at least the following beneficial effects:

[0019] 1) The supercritical liquid desuperheating and depressurization integrated device of the present invention has a reasonable structural design, small overall equipment size, small footprint, low overall investment, high desuperheating and depressurization efficiency, energy saving during the desuperheating and depressurization process, low noise during the desuperheating and depressurization process, and safe and reliable operation during the desuperheating and depressurization process.

[0020] 2) The supercritical liquid desuperheating and depressurization integrated device of the present invention is equipped with a desuperheating power component and a first-stage desuperheating liquid conveying component. The desuperheating power component can use the supercritical liquid as a power source to pump the desuperheating liquid into the Venturi tube through the first-stage desuperheating liquid conveying component. This means that no external energy is consumed during the first and second desuperheating processes of the supercritical liquid, which significantly reduces the energy consumption of the desuperheating and depressurization process and simplifies the process of the first and second desuperheating processes, making the desuperheating process more reliable.

[0021] 3) The present invention provides a three-stage desuperheating and depressurization integrated device for supercritical liquids. The three-stage desuperheating and depressurization component is fitted outside the two-stage desuperheating and depressurization component. It can significantly reduce the noise of the two-stage desuperheating and depressurization component during the desuperheating and depressurization process by using the desuperheating water inside the three-stage desuperheating and depressurization component. Furthermore, the three-stage desuperheating and depressurization component, which is wrapped around the two-stage desuperheating and depressurization component, further reduces the adverse consequences caused by the failure of the two-stage desuperheating and depressurization component, and further improves the safety of the supercritical liquid desuperheating and depressurization process.

[0022] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0023] Figure 1 This is a front view of the supercritical liquid desuperheating and depressurization integrated device of the present invention;

[0024] Figure 2 This is a top view of the supercritical liquid desuperheating and depressurization integrated device of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the integrated supercritical liquid desuperheating and decompression device of the present invention;

[0026] Figure 4 This invention relates to an integrated supercritical liquid desuperheating and depressurization device. Figure 2 Schematic diagram of the three-dimensional structure in the AA direction section;

[0027] Figure 5 This invention relates to an integrated supercritical liquid desuperheating and depressurization device. Figure 2 Schematic diagram of the three-dimensional structure in the BB direction;

[0028] Figure 6 This invention relates to an integrated supercritical liquid desuperheating and depressurization device. Figure 2 Schematic diagram of the three-dimensional structure in the CC direction;

[0029] Figure 7 This invention relates to an integrated supercritical liquid desuperheating and depressurization device. Figure 2 Schematic diagram of the three-dimensional structure in the DD direction;

[0030] Figure 8 This invention relates to an integrated supercritical liquid desuperheating and depressurization device. Figure 2 Schematic diagram of the three-dimensional structure in the EE direction.

[0031] Wherein: 1-Venturi tube, 2-First-stage expansion tube, 3-Supercritical liquid delivery tube, 4-First desuperheating power tube, 5-Turbine housing, 6-Second desuperheating power tube, 7-Pump housing, 8-First desuperheating delivery tube, 9-Second desuperheating delivery tube, 10-Second-stage pressure reducing tube, 11-Second-stage pressure reducing housing, 12-First flange, 13-Second flange, 14-Control fixing tube, 15-Second through hole, 16-Second-stage desuperheating first tube, 17-Second-stage desuperheating second tube, 18-Second-stage desuperheating hose, 19-Second-stage desuperheating nozzle, 20-Turbulence plate, 21-First connecting rod, 22-Second connecting rod, 23-Third-stage mounting base, 24-Mixed flow guide plate, 25-Mixed flow protective housing, 26-Desuperheating liquid inlet tube, 27-Desuperheating liquid outlet tube, 28-Third through hole. Detailed Implementation

[0032] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and by way of embodiments. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0033] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0034] according to Figures 1-8 As shown, a supercritical liquid desuperheating and depressurization integrated device includes a primary desuperheating and depressurization component, a secondary desuperheating and depressurization component, and a tertiary desuperheating and depressurization component. The secondary desuperheating and depressurization component is connected to the primary desuperheating and depressurization component, and the tertiary desuperheating and depressurization component is connected to the secondary desuperheating and depressurization component. The primary desuperheating and depressurization component includes a primary depressurization tube and a primary desuperheating component, with the primary desuperheating component disposed on the primary depressurization tube. The primary depressurization tube includes a Venturi tube 1 and a primary expansion tube 2. One end of the Venturi tube 1 is connected to one end of a supercritical liquid delivery tube 3, which is used to deliver the supercritical liquid to the primary desuperheating and depressurization component. The primary expansion tube 2 is a reducing tube, with its smaller end connected to the other end of the Venturi tube 1. The primary expansion tube 2 is used to deliver the supercritical liquid, after being desuperheated and depressurized by the primary desuperheating and depressurization component, to the secondary desuperheating and depressurization component.

[0035] The primary cooling component includes a cooling power component and a primary cooling liquid delivery component. The cooling power component is mounted on the supercritical liquid delivery pipe 3, and the primary cooling liquid delivery component is mounted on the cooling power component. The cooling power component includes a first cooling power pipe 4, a turbine housing 5, turbine blades, and a second cooling power pipe 6. One end of the first cooling power pipe 4 is connected to the side wall of the supercritical liquid delivery pipe 3. The turbine housing 5 is tubular and is connected to the other end of the first cooling power pipe 4. The turbine blades are embedded in the turbine housing 5 and can rotate freely circumferentially within the turbine housing 5. One end of the second cooling power pipe 6 is connected to the turbine housing 5, and the other end of the second cooling power pipe 6 is connected to the secondary cooling and pressure reducing component. Since the pressure of the supercritical liquid after being depressurized in the secondary depressurization and pressure-reducing component is much lower than the pressure in the supercritical liquid delivery pipe 3, a portion of the supercritical liquid in the supercritical liquid delivery pipe 3 will flow rapidly from the first depressurization power pipe 4 and the second depressurization power pipe 6 to the secondary depressurization and pressure-reducing component. During the flow, it will drive the turbine blades to rotate rapidly, thereby providing power for pumping the depressurized liquid into the Venturi tube 1.

[0036] Alternatively, the axis of the turbine blades can be aligned with or perpendicular to the axis of the other port of the first desuperheating power tube 4, depending on design requirements. This improves the rotational efficiency of the turbine blades while reducing the volume of the first-stage desuperheating component.

[0037] The primary cooling fluid delivery system includes a pump housing 7, a drive shaft, a first drive gear, an impeller, a first cooling delivery pipe 8, and a second cooling delivery pipe 9. The pump housing 7 is fixedly connected to the turbine housing 5. One end of the drive shaft passes through the pump housing 7, and the other end passes through the turbine housing 5. The first drive gear is fixedly mounted on the other end of the drive shaft and meshes with a second drive gear on the turbine blade shaft. This causes the turbine blade to drive the drive shaft to rotate via the second drive gear and the first drive gear. The impeller is fixedly mounted on one end of the drive shaft within the pump housing 7. One end of the first cooling delivery pipe 8 is connected to the pump housing 7, and the other end extends to a cooling fluid delivery tank, which delivers cooling fluid to the primary and secondary cooling and pressure-reducing components. One end of the second cooling delivery pipe 9 is connected to the pump housing 7, and the other end is connected to the minimum diameter section of the venturi tube 1. Furthermore, a first flow control valve is provided on the second cooling delivery pipe 9. Furthermore, the cooling liquid is water at a predetermined temperature.

[0038] It should be noted that while the flow rate and pressure of the supercritical liquid transported from the supercritical liquid delivery pipe 3 to the Venturi tube 1 increase, the pressure of the supercritical liquid after the pressure reduction is still much higher than the standard atmospheric pressure, preventing the cooling liquid from flowing naturally into the Venturi tube 1. An external power source is required to pump the cooling liquid into the Venturi tube 1, increasing energy consumption and reducing economic efficiency, while also increasing the complexity of the cooling liquid delivery process and reducing the reliability of the first-stage cooling and pressure-reducing component. The cooling liquid pumped into the Venturi tube 1 is instantly atomized by the high-speed flow of the supercritical liquid, and the atomized cooling liquid mixes thoroughly with the supercritical liquid, thus cooling the supercritical liquid.

[0039] Furthermore, in order to improve the cooling efficiency of the supercritical liquid, multiple Venturi tubes 1 are connected in series as needed, and each Venturi tube 1 is connected to the second desuperheating delivery pipe 9 so that the desuperheating effect of the first-stage desuperheating and pressure reducing component reaches the predetermined level.

[0040] The secondary depressurization and pressure reduction component includes a secondary pressure reduction component and a secondary depressurization component. The secondary pressure reduction component is connected to the primary pressure reduction pipe, and the secondary depressurization component is disposed on the secondary pressure reduction component. The secondary pressure reduction component includes a secondary pressure reduction pipe 10, a pressure reduction control component, and a secondary pressure reduction shell 11. The diameter of the secondary pressure reduction pipe 10 is not less than the diameter of the larger end of the primary expansion pipe 2. One end of the secondary pressure reduction pipe 10 is connected to a second flange 13 on the other end of the primary expansion pipe 2 through a first flange 12 fixedly disposed thereon. The other end of the secondary pressure reduction pipe 10 is closed, and the sidewall of one end of the secondary pressure reduction pipe 10 is connected to the other end of the second depressurization power pipe 6.

[0041] The pressure reduction control component includes a pressure reduction chute, a pressure reduction slider, a control transmission rod, a control fixing tube 14, and a magnetic coil. The pressure reduction chute is fixedly disposed on one end sidewall of the secondary pressure reduction tube 10, and the axis of the pressure reduction chute is parallel to the axis of the secondary pressure reduction tube 10. Simultaneously, a first through hole on the bottom of the pressure reduction chute communicates with a second through hole 15 on the secondary pressure reduction tube 10, allowing the supercritical liquid inside the secondary pressure reduction tube 10 to flow out of the secondary pressure reduction tube 10 through the second through hole 15 and the first through hole. The length of the pressure reduction slider is less than the length of the pressure reduction chute, and a sliding block on the sidewall of the pressure reduction slider is fitted into a sliding groove on the inner wall of the pressure reduction chute. This allows the pressure reduction slider to withstand the pressure of the supercritical liquid flowing out of the second through hole 15 during axial sliding within the pressure reduction chute, through the sliding block and the sliding groove. One end of the control transmission rod is fixedly connected to one end of the pressure-reducing slider. The control fixing tube 14 is fixedly disposed on the side wall of the secondary pressure-reducing tube 10, and one end of the control fixing tube 14 is sleeved on the other end of the control transmission rod. The magnetic coil is fixedly embedded in the control fixing tube 14 and sleeved on the control transmission rod. When the magnetic coil is supplied with positive direct current to generate a magnetic field, it will push the control transmission rod to move to the right. The control transmission rod pushes the pressure-reducing slider to move to the right within the pressure-reducing groove, thereby covering and blocking a portion of the first through hole. The pressure reduction ratio of the secondary pressure-reducing component is controlled by controlling the area of ​​the blocked first through hole. Four sets of pressure-reducing control components are provided, and the four sets of pressure-reducing control components are evenly distributed along the circumference of the secondary pressure-reducing tube 10.

[0042] The secondary decompression shell 11 is tubular, with an inner diameter larger than the outer diameter of the secondary decompression tube 10. The secondary decompression shell 11 is fixedly fitted onto both ends of the secondary decompression tube 10 through fixing through holes on its two end faces, and the secondary pressurization shell encloses the secondary decompression tube 10 within it. The supercritical liquid, after being decompressed and released by the decompression control device, temporarily resides in the cavity between the secondary decompression shell 11 and the secondary decompression tube 10.

[0043] The secondary cooling system includes a first secondary cooling pipe 16, a second secondary cooling pipe 17, a second secondary cooling hose 18, a second secondary cooling nozzle 19, and a turbulence plate 20. One end of the first secondary cooling pipe 16 is connected to the side wall of the second cooling delivery pipe 9, and the other end of the first secondary cooling pipe 16 extends into the second secondary pressure reducing shell 11. A second flow control valve is installed on the first secondary cooling pipe 16. The second secondary cooling pipe 17 is annular and is fixedly fitted onto four control fixing pipes 14, with the other end of the second secondary cooling pipe 17 connected to the other end of the first secondary cooling pipe 16. One end of the second secondary cooling hose 18 extends through the second secondary cooling pipe 17, and the other end of the second secondary cooling hose 18 extends to the pressure reducing slider. Four second secondary cooling hoses 18 are provided, each corresponding to one of the four pressure reducing sliders. The secondary cooling nozzle 19 is fixedly mounted on the pressure reducing slider, with one end of the secondary cooling nozzle 19 connected to the other end of the secondary cooling hose 18. The other end of the secondary cooling nozzle 19 extends beyond the free end of the pressure reducing slider, spraying the cooling liquid from the other end of the secondary cooling nozzle 19 towards the first through hole. When the cooling liquid sprayed towards the first through hole encounters the supercritical liquid ejected from the first through hole, it is dispersed and atomized, causing the cooling liquid to mix with the supercritical liquid for cooling. The turbulence plate 20 is spiral-shaped, with its inner diameter larger than the outer diameter of the secondary pressure reducing tube 10 and its outer diameter smaller than the inner diameter of the secondary pressure reducing shell 11. The turbulence plate 20 is fixedly embedded in the secondary pressure reducing shell 11 via a first connecting rod 21, and the turbulence plate 20 is fixedly fitted onto the outside of the secondary pressure reducing tube 10 via a second connecting rod 22. The supercritical liquid is ejected from the first through hole and mixed with the desuperheating liquid. After being guided into turbulent flow by the turbulence plate 20, it flows from one end of the secondary decompression shell 11 to the other end of the secondary decompression shell 11. During the flow, the turbulence plate 20 ensures that the supercritical liquid and the desuperheating liquid are fully mixed and desuperheated.

[0044] The three-stage desuperheating and pressure-reducing component includes a three-stage mixing element and a three-stage mounting base 23. The three-stage mixing element is mounted on the two-stage pressure-reducing component, and the three-stage mounting base 23 is mounted on the three-stage mixing element. The three-stage mixing element includes a mixing guide plate 24, a mixing protective shell 25, a desuperheating liquid inlet pipe 26, and a desuperheating liquid outlet pipe 27. The mixing guide plate 24 is spiral-shaped, and its length is less than the length of the two-stage pressure-reducing shell 11. The inner ring of the mixing guide plate 24 is fixedly fitted onto the two-stage pressure-reducing shell 11. Four mixing guide plates 24 are provided, and the four mixing guide plates 24 are evenly distributed around the two-stage pressure-reducing shell 11. A third through hole 28 is provided on the other end of the two-stage pressure-reducing shell 11 between adjacent mixing guide plates 24. The third through hole 28 is used to allow the supercritical liquid inside the two-stage pressure-reducing shell 11 to flow outward. The mixing flow protective shell 25 is fixedly fitted onto one end of the secondary pressure reducing pipe 10 through a fourth through hole on one end face, and the inner wall of the mixing flow protective shell 25 is fixedly connected to the outer ring of the mixing flow guide plate 24. Simultaneously, the other end face of the mixing flow protective shell 25 is fixedly connected to the other end face of the secondary pressure reducing pipe 10. One end of the desuperheating liquid inlet pipe 26 is connected through to the other end of the mixing flow protective shell 25, and the desuperheating liquid inlet pipe 26 is used to input desuperheating water into the mixing flow protective shell 25. One end of the desuperheating liquid outlet pipe 27 is connected through to one end face of the mixing flow protective shell 25, and the desuperheating liquid outlet pipe 27 is used to output the fully mixed and desuperheated supercritical liquid from inside the mixing flow protective shell 25 for use. The tertiary mounting base 23 is rectangular in shape and is fixedly mounted on the mixing flow protective shell 25 to provide support for the mixing flow protective shell 25.

[0045] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A supercritical liquid desuperheating and depressurization integrated device, characterized in that, include: A primary cooling and pressure reducing device includes a primary pressure reducing pipe and a primary cooling device. The primary pressure reducing pipe receives supercritical liquid from a connected supercritical liquid delivery pipe and delivers the supercritical liquid to the next process. The primary cooling device is connected to the supercritical liquid delivery pipe and pumps cooling liquid into the primary pressure reducing pipe using the high-speed flow of the supercritical liquid as power. A secondary depressurization and de-pressure reducing device is connected to the primary depressurization pipe. It includes a secondary depressurization device and a secondary depressurization device. The secondary depressurization device receives the supercritical liquid transported from the primary depressurization pipe to which it is connected, and the secondary depressurization device cools the supercritical liquid after it has been depressurized by the secondary depressurization device. The third-stage de-cooling and de-pressure reducing device is connected to the second-stage de-cooling and de-pressure reducing device. It includes a third-stage mixing element and a third-stage mounting base. The third-stage mixing element is fitted outside the second-stage de-cooling and de-pressure reducing device to perform a third de-cooling and de-pressure reducing treatment on the supercritical liquid after the second-stage de-cooling and de-pressure reducing device. The third-stage mounting base is set on the third-stage mixing element to provide support for it. The primary pressure reducing pipe includes a Venturi tube and a primary expansion tube. One end of the Venturi tube is connected to one end of the supercritical liquid delivery pipe. The primary expansion tube is a reducing tube, and its smaller end is connected to the other end of the Venturi tube. The primary cooling component includes a cooling power component and a primary cooling liquid delivery component. The cooling power component is mounted on the supercritical liquid delivery pipe, and the primary cooling liquid delivery component is mounted on the cooling power component. The cooling power component includes a first cooling power tube, a turbine housing, turbine blades, and a second cooling power tube. One end of the first cooling power tube is connected to the supercritical liquid delivery pipe, and the turbine housing is connected to the other end of the first cooling power tube. The turbine blades are embedded in the turbine housing. One end of the second cooling power tube is connected to the turbine housing, and the other end is connected to the secondary cooling and pressure reducing component. The primary cooling liquid delivery component includes a pump housing, a drive shaft, a first drive gear, and an impeller. The system comprises a first desuperheating delivery pipe and a second desuperheating delivery pipe. The pump casing is fixedly connected to the turbine casing. One end of the drive shaft penetrates into the pump casing, and the other end of the drive shaft penetrates into the turbine casing. A first drive gear is disposed on the other end of the drive shaft and meshes with a second drive gear on the turbine blade shaft. The impeller is disposed within the pump casing on one end of the drive shaft. One end of the first desuperheating delivery pipe is connected to the pump casing, and one end of the second desuperheating delivery pipe is connected to the pump casing. The other end of the second desuperheating delivery pipe is connected to the minimum diameter of the venturi tube. The secondary pressure reducing component includes a secondary pressure reducing pipe, a pressure reducing control component, and a secondary pressure reducing shell. The diameter of the secondary pressure reducing pipe is not less than the diameter of the large end of the primary expansion pipe. One end of the secondary pressure reducing pipe is connected to the other end of the primary expansion pipe, and the other end of the secondary pressure reducing pipe is closed. The sidewall of one end of the secondary pressure reducing pipe is connected to the other end of the second desuperheating power pipe.

2. The integrated supercritical liquid desuperheating and depressurization device according to claim 1, characterized in that, The pressure reduction control component includes a pressure reduction groove, a pressure reduction slider, a control transmission rod, a control fixing tube, and a magnetic coil. The pressure reduction groove is disposed on one end sidewall of the secondary pressure reduction tube, and a first through hole on the bottom of the pressure reduction groove communicates with a second through hole on the secondary pressure reduction tube. The pressure reduction slider is fitted into the pressure reduction groove. One end of the control transmission rod is connected to one end of the pressure reduction slider. The control fixing tube is disposed on the sidewall of the secondary pressure reduction tube, and one end of the control fixing tube is sleeved on the other end of the control transmission rod. The magnetic coil is embedded in the control fixing tube and sleeved on the control transmission rod. Multiple sets of the pressure reduction control components are evenly distributed along the circumference of the secondary pressure reduction tube.

3. The integrated supercritical liquid desuperheating and depressurization device according to claim 2, characterized in that, The sliding block on the side wall of the pressure-reducing slider is fitted into the sliding groove on the inner wall of the pressure-reducing slide groove.

4. The integrated supercritical liquid desuperheating and depressurization device according to claim 2, characterized in that, The secondary pressure relief shell is tubular, with an inner diameter larger than the outer diameter of the secondary pressure relief tube. The secondary pressure relief shell is fixedly fitted onto both ends of the secondary pressure relief tube through fixing through holes on its two end faces.

5. The integrated supercritical liquid desuperheating and depressurization device according to claim 2, characterized in that, The secondary cooling component includes a first secondary cooling tube, a second secondary cooling tube, a secondary cooling hose, a secondary cooling nozzle, and a turbulence plate. One end of the first secondary cooling tube is connected to the second cooling delivery tube, and the other end of the first secondary cooling tube extends into the secondary pressure reducing shell. The second secondary cooling tube is annular and is fitted onto multiple control fixing tubes, with its other end connected to the first secondary cooling tube. One end of the second secondary cooling hose extends through the second secondary cooling tube, and its other end extends to the pressure reducing slider. Multiple secondary cooling hoses correspond one-to-one with multiple pressure reducing sliders. The secondary cooling nozzle is mounted on the pressure reducing slider, with one end connected to the other end of the second secondary cooling hose and the other end extending beyond the free end of the pressure reducing slider. The turbulence plate is fixedly embedded in the secondary pressure reducing shell via a first connecting rod and is fixedly fitted onto the outside of the secondary pressure reducing tube via a second connecting rod.

6. The integrated supercritical liquid desuperheating and depressurization device according to claim 2, characterized in that, The three-stage mixing component includes a mixing guide plate, a mixing protective shell, a desuperheating liquid inlet pipe, and a desuperheating liquid outlet pipe. The mixing guide plate is spiral-shaped, with its inner ring fitted onto the secondary decompression shell. Multiple mixing guide plates are evenly distributed around the secondary decompression shell, and a third through hole is provided on the other end of the secondary decompression shell between two adjacent mixing guide plates. The mixing protective shell is fixedly fitted onto one end of the secondary decompression pipe through a fourth through hole on one end face, and the inner wall of the mixing protective shell is connected to the outer ring of the mixing guide plate. At the same time, the other end face of the mixing protective shell is fixedly connected to the other end face of the secondary decompression pipe. One end of the desuperheating liquid inlet pipe passes through the other end of the mixing protective shell, and one end of the desuperheating liquid outlet pipe passes through and is connected to one end face of the mixing protective shell.

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