A high-performance adaptive adjustment supercharging conversion and recovery device

Abstract

A high-performance adaptive adjustment pressurization conversion recovery device belongs to the field of sewage treatment. This device uses the pressure difference on both sides of the rotor to drive rotation, efficiently recovers the residual pressure energy of high-pressure concentrated liquid, avoids the energy consumption of traditional motor drive, reduces the overall energy consumption of the system, improves the energy utilization rate, and saves the operation cost. Its adaptive sealing system dynamically adjusts the sealing gap according to the liquid pressure. The sealing ring of the diversion hole keeps in contact with the inner wall of the inlet and outlet diversion parts under the action of spring force and liquid pressure to prevent leakage, and is applicable to fluid containing particles. It can adapt to fluids with different pressures, flows and compositions, and can also be dynamically adjusted through the sealing system for fluid containing particles to ensure stable operation. Due to the adaptive sealing adjustment, the adaptive sealing rotor end face, and the adaptive adjustment of the leakage gap, it solves the blockage problem of dealing with large particles.

Description

Technical Field

[0001] The present invention relates to a high-performance adaptive adjustment pressurization conversion recovery device, belonging to the field of membrane separation technology. Background Art

[0002] In the field of membrane separation technology driven by pressure, material separation requires a relatively high driving pressure (usually 85 bar). However, the concentrated liquid still has a residual pressure as high as 80 bar after doing work. If directly discharged, it will cause serious waste of energy. According to statistics, the loss caused by the non-recovery of the residual pressure of the concentrated liquid accounts for 50% of the total cost of produced water and 75% of the operating cost. The traditional energy recovery devices have the following significant defects:

[0003] First, the energy consumption is too high. When the traditional device processes material separation, the energy consumption is generally as high as 8 kW·h / m³. Even when using partial recovery technology, the energy consumption still remains at 4 kW·h / m³, and the energy utilization efficiency is low.

[0004] Second, the problem of particle blockage. When processing a solution containing particles (such as 10-micron particulate matter), the traditional sealing structure is prone to blockage due to particle accumulation, and it is necessary to frequently stop the machine for cleaning, resulting in high maintenance costs and affecting continuous production.

[0005] Third, the sealing performance is insufficient. The existing sealing technology cannot dynamically compensate for the leakage gap, resulting in a mixing rate of the concentrated liquid and the original liquid of more than 5%, affecting the separation effect and increasing the difficulty of subsequent processing.

[0006] Fourth, the defects of materials and structures. The steel cylinder has a large weight and weak corrosion resistance, and the bearing structure cannot withstand the axial force sufficiently. It is prone to wear during long-term operation, reducing the service life of the device.

[0007] In summary, it is necessary to develop a high-performance adaptive adjustment pressurization conversion recovery solution. Summary of the Invention

[0008] In view of the deficiencies of the existing technology, the present invention provides a high-performance adaptive adjustment pressurization conversion recovery device, which solves the problems of low energy conversion efficiency, poor particle adaptability, unstable sealing performance and insufficient structural reliability existing in the traditional technology.

[0009] The technical solution of the present invention to solve the above technical problems is as follows: A high-performance adaptive adjustment pressurization conversion recovery device, comprising:

[0010] A rotor, which is arranged at the central position inside the device, and the rotor is driven to rotate by the pressure difference on both sides;

[0011] A fiberglass shell that surrounds the outside of the rotor. Fixed tie rods are evenly distributed along the circumferential direction on the outside of the fiberglass shell. One end of the fixed tie rod is fixedly connected to one end of the fiberglass shell, and the other end of the fixed tie rod is fastened to the other end of the fiberglass shell through a fixed tie rod nut.

[0012] Inlet and outlet flanges are respectively arranged at both ends of the fiberglass shell. The inlet and outlet flanges are used to connect the inlet and outlet water pipes. The ends of the inlet and outlet water pipes are tightly connected to the inlet and outlet flanges through inlet and outlet water pipe fixing screws. An inlet and outlet water pipe sealing ring is arranged at the pipe orifice of the inlet and outlet water pipes.

[0013] An adaptive sealing system, including a mechanical seal spring, an inlet and outlet flange, and an inlet and outlet flow guide member. One end of the mechanical seal spring is connected to a spring fixing groove on the inlet and outlet flange, and the other end of the mechanical seal spring is connected to a spring fixing groove on the inlet and outlet flow guide member. A flow guide hole sealing ring is arranged between the inlet and outlet flange and the inlet and outlet flow guide member.

[0014] As a preferred solution for a high-performance adaptive adjustment pressurization conversion and recovery device, it further includes a bearing assembly. The bearing assembly includes a first self-aligning ball bearing and a second self-aligning ball bearing symmetrically arranged on both sides of the rotor main shaft. Both the first self-aligning ball bearing and the second self-aligning ball bearing are configured with bearing thrust rings and bearing positioning rings.

[0015] The first self-aligning ball bearing and the second self-aligning ball bearing are respectively sleeved on both ends of the rotor main shaft. The first self-aligning ball bearing and the second self-aligning ball bearing respectively bear axial forces through the corresponding bearing thrust rings.

[0016] The first self-aligning ball bearing and the second self-aligning ball bearing respectively cooperate with elastic snap rings through the corresponding bearing positioning rings to achieve axial positioning.

[0017] Both the first self-aligning ball bearing and the second self-aligning ball bearing are of deep groove ball bearing structure. The outer rings of the first self-aligning ball bearing and the second self-aligning ball bearing are respectively in close fit with the bearing seat holes inside the device, and the inner rings of the first self-aligning ball bearing and the second self-aligning ball bearing are respectively in interference fit with the rotor main shaft.

[0018] As a preferred solution for a high-performance adaptive adjustment pressurization conversion and recovery device, the inlet and outlet flanges are provided with double sealing rings, including a first flange sealing ring and a second flange sealing ring. The first flange sealing ring and the second flange sealing ring are respectively installed in the sealing grooves of the inlet and outlet flanges. The inlet and outlet flanges and the connecting flange are fastened and connected by bolts. During the connection process, the first flange sealing ring and the second flange sealing ring are extruded and deformed to fill the gap between the inlet and outlet flanges and the connecting flange to achieve fluid sealing.

[0019] As a preferred solution of the high-performance adaptive adjustment supercharging conversion recovery device, a mating bellows joint is provided at the connection part between the end of the inlet and outlet water pipe and the inlet and outlet flange;

[0020] The inlet and outlet water pipe sealing ring is an O-ring made of rubber. The inner diameter of the inlet and outlet water pipe sealing ring is adapted to the outer diameter of the inlet and outlet water pipe, and the outer diameter of the inlet and outlet water pipe sealing ring is adapted to the inner diameter of the sealing groove of the inlet and outlet flange.

[0021] As a preferred solution of the high-performance adaptive adjustment supercharging conversion recovery device, it further includes an end cover fixed by end cover screws. The end cover is a disc-shaped structure, and threaded holes adapted to the end cover screws are provided at the edge of the end cover. By tightening the end cover screws with the threaded holes at the end of the fiberglass shell, the fixed connection between the end cover and the fiberglass shell is realized; an end cover sealing ring is provided between the end cover and the fiberglass shell. The end cover sealing ring is an annular rubber sealing ring, and the end cover sealing ring is installed in the sealing groove of the end cover to play a sealing role after the end cover is connected to the fiberglass shell.

[0022] As a preferred solution of the high-performance adaptive adjustment supercharging conversion recovery device, a first shell sealing ring and a second shell sealing ring are provided between the rotor and the fiberglass shell. Both the first shell sealing ring and the second shell sealing ring are annular rubber sealing rings;

[0023] The first shell sealing ring and the second shell sealing ring are respectively installed in the corresponding sealing grooves between the rotor and the fiberglass shell. The rotor main shaft is provided with a shaft sealing retaining ring and a shaft sealing ring. The shaft sealing retaining ring is sleeved on the rotor main shaft, and the shaft sealing ring is installed in the sealing groove of the shaft sealing retaining ring;

[0024] The first shell sealing ring, the second shell sealing ring, the shaft sealing retaining ring and the shaft sealing ring together constitute a multi-stage sealing structure to prevent fluid leakage.

[0025] As a preferred solution of the high-performance adaptive adjustment supercharging conversion recovery device, the fixed pull rod is a high-strength metal rod. One end of the fixed pull rod is fixedly connected to one end of the fiberglass shell by means of threaded connection. After the other end of the fixed pull rod passes through the corresponding hole position at the other end of the fiberglass shell, it is tightened by the fixed pull rod nut to generate a pre-tightening force on the fixed pull rod.

[0026] As a preferred solution of the high-performance adaptive adjustment supercharging conversion recovery device, the inlet and outlet flow guiding member is attached to the inner wall of the flow guiding hole on the inlet and outlet flow guiding member through the flow guiding hole sealing ring, and the sealing gap between the inlet and outlet flange and the inlet and outlet flow guiding member is maintained by the mechanical seal spring.

[0027] As an optimal solution for a high-performance adaptive adjustment boost conversion and recovery device, an energy conversion method is adopted to drive the rotation of the rotor. During the rotation of the rotor, high-pressure concentrated liquid and low-pressure original liquid are respectively input with preset pressure and flow rate. The energy transfer formula is:

[0028] ;

[0029] ;

[0030] ;

[0031] In the formula, represents the energy transfer amount achieved by the high-performance adaptive adjustment boost conversion and recovery device; represents the pressure difference; is the pressure of the high-pressure fluid, is the pressure of the low-pressure fluid, represents the average flow rate; is the flow rate of the high-pressure fluid, is the flow rate of the low-pressure fluid.

[0032] As an optimal solution for a high-performance adaptive adjustment boost conversion and recovery device, the adaptive sealing system adopts a dynamic adjustment method for the sealing gap, and a balance formula is established through the elastic coefficient of the mechanical seal spring and the contact area of the guide hole sealing ring:

[0033] ;

[0034] In the formula, is the spring compression amount, is the friction coefficient, is the normal force of the sealing surface to maintain the initial gap and dynamic compensation accuracy of the inlet and outlet guide parts.

[0035] The beneficial effects of the present invention are as follows:

[0036] First, by driving the rotation using the pressure difference on both sides of the rotor, the residual pressure energy of the high-pressure concentrated liquid is efficiently recovered, avoiding the energy consumption of traditional motor drive, reducing the overall energy consumption of the system, improving the energy utilization rate, and saving the operation cost. Recycling the energy of the high-pressure concentrated liquid to drive the rotor reduces the external energy input and is more energy-efficient than traditional devices when processing the same materials. When processing material separation, the energy consumption is reduced from 8 kW*h / m 3 to 4 kW*h / m 3 , and can even be reduced to 2 kW*h / m 3 , with a single-unit processing capacity of up to 95 m 3 / h and a processing and recovery efficiency of up to 98%.

[0037] Second, the fiberglass shell is paired with evenly circumferentially distributed fixed tie rods, which are light in weight, corrosion-resistant, convenient for installation and transportation, improve the corrosion resistance in harsh environments, extend the service life, and at the same time enhance the structural strength to ensure stable high-voltage operation. The inlet and outlet flanges and the inlet and outlet water pipes are tightly connected with screws and supplemented with sealing rings to ensure fluid inlet and outlet sealing and stable connection, and prevent energy loss, environmental pollution and component damage caused by leakage.

[0038] Third, the adaptive sealing system dynamically adjusts the sealing gap according to the liquid pressure. Under the action of the spring force and the liquid pressure, the sealing ring of the diversion hole keeps fitting with the inner wall of the inlet and outlet diversion parts to prevent leakage, and is suitable for fluid containing particles. It can adapt to fluids with different pressures, flows and compositions, and can also be dynamically adjusted by the sealing system for fluids containing particles to ensure stable operation. Due to the adaptive sealing adjustment and the adaptive adjustment of the leakage gap, the problem of blockage containing large particles can be solved. Brief Description of the Drawings

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0040] The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limited conditions for the implementation of the present invention. Therefore, they do not have a technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the efficacy and purpose that the present invention can achieve, should still fall within the scope that the technical content disclosed by the present invention can cover.

[0041] Figure 1 It is a schematic structural diagram of the high-performance adaptive adjustment pressurization conversion recovery device provided in the embodiment of the present invention;

[0042] Figure 2 It is an exploded view of the high-performance adaptive adjustment pressurization conversion recovery device provided in the embodiment of the present invention;

[0043] Figure 3 It is a semi-sectional view of the high-performance adaptive adjustment pressurization conversion recovery device provided in the embodiment of the present invention;

[0044] Figure 4 It is a full-sectional view of the high-performance adaptive adjustment pressurization conversion recovery device provided in the embodiment of the present invention.

[0045] In the figure, 01 is the end cover screw; 02 is the end cover; 03 is the end cover sealing ring; 04 is the bearing thrust ring; 05 is the first self-aligning ball bearing; 06 is the second self-aligning ball bearing; 07 is the bearing positioning ring; 08 is the snap ring; 09 is the shaft sealing retaining ring; 10 is the shaft sealing ring; 11 is the inlet and outlet pipe fixing screw; 12 is the inlet and outlet pipe; 13 is the inlet and outlet pipe sealing ring; 14 is the inlet and outlet flange; 15 is the diversion hole sealing ring; 16 is the mechanical seal spring; 17 is the inlet and outlet diversion part; 18 is the first flange sealing ring; 19 is the second flange sealing ring; 20 is the connecting flange; 21 is the first housing sealing ring; 22 is the second housing sealing ring; 23 is the fiberglass housing; 24 is the fixed pull rod nut; 25 is the fixed pull rod; 26 is the rotor. Detailed implementation mode

[0046] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific implementation mode of the present invention will be given in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific implementation modes and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0048] See Figure 1 , Figure 2 , Figure 3 and Figure 4 , the embodiment of the present invention provides a high-performance adaptive adjustment supercharging conversion recovery device, including:

[0049] The rotor 26 is disposed at the central position inside the device, and the rotor 26 is driven to rotate by the pressure difference on both sides. When the device operates, the high-pressure concentrated liquid and the low-pressure original liquid enter the device respectively and act on both sides of the rotor 26 to form a pressure difference. According to the principle of fluid mechanics, the pressure difference will generate a force that pushes the rotor 26 to rotate. This force causes the rotor 26 to rotate around its central axis, thereby converting the pressure energy of the fluid into the mechanical energy of the rotor 26 and achieving the initial conversion of energy. This method of driving the rotor 26 using the pressure difference avoids the use of an additional power source and improves the energy utilization efficiency. For example, in some industrial wastewater treatment systems, the residual pressure of the high-pressure concentrated liquid would originally be wasted, and this device can recover and utilize this part of the energy.

[0050] The fiberglass shell 23 surrounds the outside of the rotor 26. Fixed tie rods 25 are evenly distributed along the circumferential direction on the outside of the fiberglass shell 23. One end of each fixed tie rod 25 is fixedly connected to one end of the fiberglass shell 23, and the other end of the fixed tie rod 25 is fastened to the other end of the fiberglass shell 23 through a fixed tie rod nut 24. Fiberglass has the advantages of light weight, high strength, and corrosion resistance. Using the fiberglass shell 23 can reduce the overall weight while ensuring the structural strength of the device, which is convenient for installation and transportation. The fixed tie rods 25 and fixed tie rod nuts 24 evenly distributed along the circumferential direction play a role in strengthening the shell. When the fixed tie rod nut 24 is tightened, the fixed tie rod 25 generates a pre-tightening force, causing the fiberglass shell 23 to be subjected to uniform tensile force in the circumferential direction, enhancing the overall stability of the shell and preventing the shell from deforming or being damaged under high-pressure environments.

[0051] Inlet and outlet flanges 14 are respectively arranged at both ends of the fiberglass shell 23. The inlet and outlet flanges 14 are used to connect the inlet and outlet water pipes 12. The ends of the inlet and outlet water pipes 12 are tightly connected to the inlet and outlet flanges 14 through inlet and outlet water pipe fixing screws 11. Inlet and outlet water pipe sealing rings 13 are arranged at the pipe orifices of the inlet and outlet water pipes 12. The inlet and outlet flanges 14 provide a connection interface between the inlet and outlet water pipes 12 and the fiberglass shell 23. Tightly connecting the inlet and outlet water pipes 12 to the inlet and outlet flanges 14 through the inlet and outlet water pipe fixing screws 11 ensures the firmness of the connection. The function of the inlet and outlet water pipe sealing rings 13 is to prevent fluid leakage at the connection part. When the inlet and outlet water pipes 12 are connected to the inlet and outlet flanges 14, the sealing rings are squeezed and deformed, filling the gaps at the connection part, forming a sealing barrier, ensuring that the fluid can flow normally in the device, and avoiding energy loss and environmental pollution.

[0052] An adaptive sealing system, comprising a mechanical seal spring 16, an inlet and outlet flange 14 and an inlet and outlet flow guiding member 17. One end of the mechanical seal spring 16 is connected to a spring fixing groove on the inlet and outlet flange 14, and the other end of the mechanical seal spring 16 is connected to a spring fixing groove on the inlet and outlet flow guiding member 17. A flow guiding hole sealing ring 15 is provided between the inlet and outlet flange 14 and the inlet and outlet flow guiding member 17. During the operation of the device, when fluid flows into the device, the high-pressure fluid pressure acts between the inlet and outlet flange 14 and the inlet and outlet flow guiding member 17. In the initial state, the flow guiding hole sealing ring 15 is closely attached to the connection between the inlet and outlet flange 14 and the inlet and outlet flow guiding member 17 to prevent fluid leakage. Both ends of the mechanical seal spring 16 are firmly connected to the corresponding spring fixing grooves on the inlet and outlet flange 14 and the inlet and outlet flow guiding member 17 respectively. With the fluctuating change of the fluid pressure, when the pressure rises, the pressures on the inlet and outlet flange 14 and the inlet and outlet flow guiding member 17 increase, and there is a tendency for a small displacement to occur in their relative positions. At this time, the mechanical seal spring 16 undergoes elastic deformation due to the change in the forces at the connection positions at both ends, the spring is compressed, and the generated elastic force acts on the inlet and outlet flange 14 and the inlet and outlet flow guiding member 17, offsetting part of the displacement force caused by the increase in fluid pressure, so that the flow guiding hole sealing ring 15 always maintains a good sealing state and prevents fluid from leaking through the gap at the connection between the two. When the fluid pressure decreases, the mechanical seal spring 16 recovers part of its deformation, and its elastic force pushes the inlet and outlet flange 14 and the inlet and outlet flow guiding member 17 to restore their relative positions, also maintaining the sealing effect of the flow guiding hole sealing ring 15, ensuring that the entire adaptive sealing system can adjust the sealing state in real time and effectively according to the dynamic change of the fluid pressure, and guaranteeing the stable operation and efficient work of the device.

[0053] In this embodiment, it further includes a bearing assembly. The bearing assembly includes a first self-aligning ball bearing 05 and a second self-aligning ball bearing 06 symmetrically arranged on both sides of the main shaft of the rotor 26. Both the first self-aligning ball bearing 05 and the second self-aligning ball bearing 06 are configured with a bearing thrust ring 04 and a bearing positioning ring 07. The first self-aligning ball bearing 05 and the second self-aligning ball bearing 06 are respectively sleeved on both ends of the main shaft of the rotor 26. The first self-aligning ball bearing 05 and the second self-aligning ball bearing 06 respectively bear axial forces through the corresponding bearing thrust rings 04. The first self-aligning ball bearing 05 and the second self-aligning ball bearing 06 respectively cooperate with an elastic snap ring 08 through the corresponding bearing positioning rings 07 to achieve axial positioning. Both the first self-aligning ball bearing 05 and the second self-aligning ball bearing 06 are of deep groove ball bearing structure. The outer rings of the first self-aligning ball bearing 05 and the second self-aligning ball bearing 06 are closely fitted with the bearing seat holes inside the device, and the inner rings of the first self-aligning ball bearing 05 and the second self-aligning ball bearing 06 are interference-fitted with the main shaft of the rotor 26.

[0054] Specifically, axial and radial forces are generated during the rotation of the rotor 26. The functions of the first self-aligning ball bearing 05 and the second self-aligning ball bearing 06 are to support the main shaft of the rotor 26, reduce the frictional resistance during rotation, and ensure that the rotor 26 can rotate smoothly. The bearing thrust ring 04 is used to bear the axial force and prevent the rotor 26 from displacing in the axial direction. The bearing positioning ring 07 cooperates with the snap ring 08 to axially position the bearing and ensure that the position of the bearing on the main shaft is fixed. The deep groove ball bearing structure has high rotational accuracy and load-bearing capacity. Its outer ring fits tightly with the bearing seat hole inside the device, and its inner ring has an interference fit with the main shaft of the rotor 26, which can effectively transmit force and torque, ensuring the stability and reliability of the entire device.

[0055] In this embodiment, the inlet and outlet flange 14 is provided with double sealing rings, including a first flange sealing ring 18 and a second flange sealing ring 19. The first flange sealing ring 18 and the second flange sealing ring 19 are respectively installed in the sealing grooves of the inlet and outlet flange 14. The inlet and outlet flange 14 and the connecting flange 20 are fixedly connected by bolts. During the connection process, the first flange sealing ring 18 and the second flange sealing ring 19 are extruded and deformed to fill the gap between the inlet and outlet flange 14 and the connecting flange 20 to achieve fluid sealing.

[0056] Specifically, the design of the double sealing rings provides double sealing guarantees. When the inlet and outlet flange 14 and the connecting flange 20 are fixedly connected by bolts, the first flange sealing ring 18 and the second flange sealing ring 19 will be extruded. They will undergo elastic deformation to fill the tiny gap between the inlet and outlet flange 14 and the connecting flange 20. This can effectively prevent fluid from leaking from the flange connection part and improve the reliability of the seal. Even if one of the sealing rings is slightly damaged, the other sealing ring can still play a sealing role, reducing the risk of leakage.

[0057] In this embodiment, a mating bell coupling joint is provided at the connection part between the end of the inlet and outlet water pipe 12 and the inlet and outlet flange 14; the inlet and outlet water pipe sealing ring 13 is an O-ring made of rubber. The inner diameter of the inlet and outlet water pipe sealing ring 13 is adapted to the outer diameter of the inlet and outlet water pipe 12, and the outer diameter of the inlet and outlet water pipe sealing ring 13 is adapted to the inner diameter of the sealing groove of the inlet and outlet flange 14.

[0058] Specifically, the copy ring joint has the characteristics of convenient connection and good sealing performance. The mutually matching copy ring joints can quickly and accurately connect the inlet and outlet water pipes 12 with the inlet and outlet flanges 14, and can ensure the sealing and stability of the connection. The O-ring seal made of rubber has good elasticity and sealing performance. Its inner diameter is adapted to the outer diameter of the inlet and outlet water pipes 12, and its outer diameter is adapted to the inner diameter of the sealing groove of the inlet and outlet flanges 14. When the inlet and outlet water pipes 12 are connected to the inlet and outlet flanges 14, the O-ring seal will be compressed, further enhancing the sealing effect and preventing fluid leakage.

[0059] In this embodiment, it further includes an end cover 02 fixed by an end cover screw 01. The end cover 02 has a disc-shaped structure. Threaded holes adapted to the end cover screw 01 are provided at the edge of the end cover 02. By tightening the end cover screw 01 with the threaded hole at the end of the fiberglass shell 23, the fixed connection between the end cover 02 and the fiberglass shell 23 is achieved; an end cover seal ring 03 is provided between the end cover 02 and the fiberglass shell 23. The end cover seal ring 03 is an annular rubber seal ring. The end cover seal ring 03 is installed in the sealing groove of the end cover 02 and plays a sealing role after the end cover 02 is connected to the fiberglass shell 23.

[0060] Specifically, the end cover 02 is fixedly connected to the fiberglass shell 23 through the end cover screw 01, providing a closed space for the device. The disc-shaped structure of the end cover 02 can evenly distribute the force, enhancing the stability of the connection. The end cover seal ring 03 is installed in the sealing groove of the end cover 02. When the end cover 02 is connected to the fiberglass shell 23, the seal ring is compressed and deformed, filling the gap between the end cover 02 and the fiberglass shell 23, preventing fluid from leaking from the connection between the end cover 02 and the shell, and ensuring the sealing inside the device.

[0061] In this embodiment, a first shell seal ring 21 and a second shell seal ring 22 are provided between the rotor 26 and the fiberglass shell 23. Both the first shell seal ring 21 and the second shell seal ring 22 are annular rubber seal rings; the first shell seal ring 21 and the second shell seal ring 22 are respectively installed in the corresponding sealing grooves between the rotor 26 and the fiberglass shell 23. An axial seal retaining ring 09 and an axial seal ring 10 are provided on the main shaft of the rotor 26. The axial seal retaining ring 09 is sleeved on the main shaft of the rotor 26, and the axial seal ring 10 is installed in the sealing groove of the axial seal retaining ring 09; the first shell seal ring 21, the second shell seal ring 22, the axial seal retaining ring 09 and the axial seal ring 10 together constitute a multi-stage sealing structure to prevent fluid leakage.

[0062] Specifically, the design of the multi-stage sealing structure greatly improves the sealing performance of the device. The first outer shell sealing ring 21 and the second outer shell sealing ring 22 are installed in the sealing grooves between the rotor 26 and the fiberglass outer shell 23, which can prevent fluid from leaking through the gap between the rotor 26 and the outer shell. The shaft sealing retaining ring 09 and the shaft sealing ring 10 seal the main shaft of the rotor 26 to prevent fluid from leaking along the main shaft direction. Through this multi-stage sealing method, even if a problem occurs in a certain stage of sealing, the other stages of sealing can still play a blocking role, effectively reducing the possibility of fluid leakage and improving the operating efficiency and reliability of the device.

[0063] In a possible embodiment, the fixed pull rod 25 is a high-strength metal rod. One end of the fixed pull rod 25 is fixedly connected to one end of the fiberglass outer shell 23 by means of threaded connection. After the other end of the fixed pull rod 25 passes through the corresponding hole position at the other end of the fiberglass outer shell 23, it is tightened by the fixed pull rod nut 24 to generate a pre-tightening force on the fixed pull rod 25.

[0064] Specifically, the high-strength metal rod has high strength and stiffness and can withstand large tensile forces. Fixing one end of the fixed pull rod 25 to the fiberglass outer shell 23 by threaded connection ensures the firmness of the connection. When the fixed pull rod nut 24 is tightened, the fixed pull rod 25 will be stretched to generate a pre-tightening force. This pre-tightening force causes the fiberglass outer shell 23 to be uniformly pulled in the circumferential direction, enhancing the overall stability of the outer shell and preventing the outer shell from deforming or being damaged under high-pressure environments. At the same time, the pre-tightening force can also improve the connection reliability between the fixed pull rod 25 and the fiberglass outer shell 23 and reduce the possibility of loosening.

[0065] In a possible embodiment, the inlet and outlet flow guiding member 17 is in contact with the inner wall of the flow guiding hole on the inlet and outlet flow guiding member 17 through the flow guiding hole sealing ring 15, and the mechanical seal spring 16 is used to maintain the sealing gap between the inlet and outlet flange 14 and the inlet and outlet flow guiding member 17.

[0066] Specifically, as described in the principle of the adaptive sealing system above, the inlet and outlet flow guiding member 17 is the channel for fluid to enter and exit the device. The flow guiding hole sealing ring 15 is in contact with the inner wall of the flow guiding hole of the inlet and outlet flow guiding member 17. When the fluid pressure changes, dynamic compensation is achieved through interaction with the mechanical seal spring 16. When the fluid pressure and the spring force reach equilibrium, the sealing gap remains stable, which can not only ensure the smooth flow of fluid in and out but also prevent fluid leakage, realizing the sealing and flow guiding functions of fluid in and out.

[0067] In a possible embodiment, an energy conversion method is adopted to drive the rotation of the rotor 26. During the rotation of the rotor 26, high-pressure concentrated liquid and low-pressure original liquid are respectively input with preset pressures and flow rates, and the energy transfer formula is:

[0068] ;

[0069] wherein, represents the amount of energy transfer achieved by the high-performance adaptive adjustment supercharging conversion recovery device; represents the pressure difference; is the pressure of the high-pressure fluid, is the pressure of the low-pressure fluid, represents the average flow rate; is the flow rate of the high-pressure fluid, is the flow rate of the low-pressure fluid.

[0070] Specifically, according to the law of conservation of energy and the principles of fluid mechanics, the pressure difference between the high-pressure concentrated liquid and the low-pressure original liquid is the power source for driving the rotation of the rotor 26. The average flow rate reflects the flow condition of the fluid in the device. The product of the pressure difference and the average flow rate represents the energy transferred from the high-pressure concentrated liquid to the rotor 26. Through this formula, the amount of energy transfer achieved by the device can be calculated, thereby evaluating the energy conversion efficiency of the device. In practical applications, the pressures and flow rates of the high-pressure concentrated liquid and the low-pressure original liquid can be adjusted according to different working conditions to optimize the energy transfer effect.

[0071] In a possible embodiment, the adaptive sealing system adopts a method of dynamically adjusting the sealing gap, and a balance formula is established through the elastic coefficient of the mechanical seal spring 16 and the contact area of the guide hole sealing ring 15:

[0072] ;

[0073] wherein, is the spring compression amount, is the friction coefficient, is the normal force of the sealing surface to maintain the initial gap and dynamic compensation accuracy of the inlet and outlet guide members 17.

[0074] Specifically, when the fluid pressure acts on the guide hole sealing ring 15, a force related to the normal force of the sealing surface will be generated. At the same time, due to the friction between the guide hole sealing ring 15 and the inner wall of the inlet and outlet guide members 17, and the friction coefficient is , a certain frictional force will also be generated. The elastic coefficient of the mechanical seal spring 16 is , the spring compression amount is , and the elastic force generated by the spring is . When these three forces reach equilibrium, that is, , the diversion hole seal ring 15 is in a stable state. At this time, the sealing gap for the inflow and outflow of the diversion part 17 can be maintained within the range of the initial design, and can be dynamically compensated according to the change of fluid pressure, ensuring the sealing accuracy and reliability. By adjusting the elastic coefficient of the spring , the contact area of the diversion hole seal ring 15 and other parameters, the sealing performance can be optimized to better adapt to different working conditions.

[0075] In a possible embodiment, the water flow and the energy conversion and transmission process are as follows:

[0076] First, water flow introduction: High-pressure concentrated liquid (pressure bar, flow rate m³ / h) passes through the inlet and outlet flange 14 at one end of the device, and precisely flows into the device interior through the closely connected inlet and outlet water pipes 12. Low-pressure original liquid (pressure bar, flow rate m³ / h) flows in from the other end of the device in the same way. The inlet and outlet flange 14 is provided with double seal rings (the first flange seal ring 18, the second flange seal ring 19), which are bolted and fastened to the connecting flange 20. Combining the copy ring joint at the connection part between the end of the inlet and outlet water pipe 12 and the inlet and outlet flange 14 and the inlet and outlet water pipe seal ring 13 at the pipe orifice ensures no leakage during the water flow introduction process.

[0077] Second, rotor drive and preliminary energy conversion: The high-pressure concentrated liquid and the low-pressure original liquid act on both sides of the rotor 26 inside the device respectively, forming a pressure difference bar. This pressure difference drives the rotor 26 to rotate at the central position inside the device, realizing the preliminary conversion from fluid pressure energy to rotor mechanical energy. The main shaft of the rotor 26 is supported by symmetrically arranged first self-aligning ball bearings 05 and second self-aligning ball bearings 06, and is paired with a bearing thrust ring 04 and a bearing positioning ring 07 to ensure the stable rotation of the rotor.

[0078] Third, energy transmission and efficient recovery: During the rotation of the rotor 26, according to the energy transmission formula ( m³ / h), the energy of the high-pressure concentrated liquid is continuously transmitted to the rotor 26. The measured energy recovery efficiency reaches 98%, and the energy consumption is reduced to 2 kW·h / m, showing a significant energy-saving effect compared with traditional devices.

[0079] Fourth, adaptive sealing ensures stable water flow and energy: During the inflow and outflow diversion process, the adaptive sealing system comes into play. When the high-pressure concentrated liquid flows into the inflow and outflow diversion part 17, its pressure directly acts on the diversion hole sealing ring 15 between the inlet and outlet flange 14 and the inflow and outflow diversion part 17. With the dynamic change of the fluid pressure, the pressure environment between the inlet and outlet flange 14 and the inflow and outflow diversion part 17 also changes accordingly. When the liquid pressure increases, the pressures on the inlet and outlet flange 14 and the inflow and outflow diversion part 17 rise, and there is a tendency for relative displacement between the two. At this time, the mechanical seal spring 16 connected in the spring fixing grooves of the inlet and outlet flange 14 and the inflow and outflow diversion part 17 is compressed due to the change in the forces at both ends, and the elastic force generated by the spring acts on the inlet and outlet flange 14 and the inflow and outflow diversion part 17, offsetting part of the displacement force caused by the increased pressure, ensuring that the diversion hole sealing ring 15 always fits tightly at the connection between the two, effectively preventing fluid leakage. On the contrary, when the liquid pressure decreases, the mechanical seal spring 16 recovers part of its deformation, and its elastic force pushes the inlet and outlet flange 14 and the inflow and outflow diversion part 17 back to the relative initial position, thereby maintaining the sealing performance of the diversion hole sealing ring 15. Through this dynamic balance mechanism between the liquid pressure and the elastic force of the mechanical seal spring 16, the sealing reliability between the inlet and outlet flange 14 and the inflow and outflow diversion part 17 is ensured, and the leakage rate is always kept below 0.1%, and the mixing rate is reduced from the original 5% to 1.5%. This stable and reliable sealing effect ensures the stable transportation of water flow in the device, avoiding energy loss and interference caused by leakage and mixing problems during the energy conversion and transmission process, and effectively ensuring the efficient and stable operation of the device.

[0080] Fifth, water flow derivation: The fluid after energy conversion is derived from the device through the inflow and outflow diversion part 17, the inlet and outlet flange 14 and the inlet and outlet water pipes 12 at the other end of the device. The whole process is ensured to be leak-free under the protection of multiple sealing structures such as the end cover 02 and the end cover sealing ring 03, the first housing sealing ring 21 and the second housing sealing ring 22 between the rotor 26 and the fiberglass outer shell 23, and the shaft sealing retaining ring 09 and the shaft sealing ring 10, realizing an efficient and stable water flow and energy conversion and transmission process.

[0081] The following verifies the effects of the embodiments of the present invention through verification tests.

[0082] First, energy recovery efficiency verification test

[0083] Test purpose: Verify the accuracy of the device energy conversion formula and the recovery efficiency.

[0084] Test conditions:

[0085] High-pressure concentrated liquid parameters: ;

[0086] Low-pressure stock solution parameters: ;

[0087] Ambient temperature: 25 °C, continuous operation for 100 hours.

[0088] Test process:

[0089] 1. Use an electromagnetic flowmeter to measure the inlet and outlet flow rates, and a pressure transmitter to monitor and , and a power sensor to record the energy consumption of the drive motor.

[0090] 2. Adjust the stock solution flow rate to 136 m 3 / h through a frequency converter, and turn on the concentrated solution pump to 83 bar after stabilization.

[0091] 3. Record data every 30 minutes and calculate the average flow rate , pressure difference .

[0092] 4. Theoretical energy , and the actual recovered energy is calculated by the difference between the input power and output power of the motor.

[0093] Results and conclusions:

[0094] The measured average , theoretical value , efficiency , which is 28 percentage points higher than that of traditional devices (≤70%).

[0095] Second, dynamic seal compensation test

[0096] Test purpose: Verify the dynamic response ability of the seal balance formula .

[0097] Test conditions:

[0098] Spring parameters: ;

[0099] Piston parameters: Contact area , friction coefficient ;

[0100] Pressure fluctuation range: 70–90 bar, particle concentration 100 ppm (10 μm quartz sand).

[0101] Test process:

[0102] 1. Install laser displacement sensors on the inlet and outlet guide parts to monitor , and a pressure sensor to record the real-time .

[0103] 2. Simulate the pressure fluctuation through a plunger pump, increasing it in a gradient of 5 bar up to 90 bar, maintaining it for 30 minutes and then decreasing it to 70 bar.

[0104] 3. Detect the concentration of the mixed liquid using a turbidimeter and calculate the leakage rate: .

[0105] Results and conclusions:

[0106] When , the measured , with an error from the theoretical value < 1.2%,

[0107] The leakage rate is stable at 0.08–0.12%, and there is no blockage after continuous operation for 5000 hours under the condition of containing particles.

[0108] Third, structural strength and durability test

[0109] Test purpose: Verify the fatigue life of the fiberglass shell and the fixed tie rod under high-pressure cycling.

[0110] Test conditions:

[0111] Pressure cycle: 1–83 bar, frequency 0.1 Hz, total number of cycles 1 million times;

[0112] Material parameters: Tensile strength of fiberglass 300 MPa, yield strength of 316L tie rod 280 MPa.

[0113] Test process:

[0114] 1. Paste strain gauges on the surface of the tie rod and install a laser vibrometer on the shell to monitor deformation.

[0115] 2. Apply cyclic load through a servo hydraulic press and stop for inspection of the appearance every 100,000 times.

[0116] 3. Use an ultrasonic flaw detector to detect the crack propagation inside the shell.

[0117] Results and conclusions:

[0118] The maximum stress of the tie rod is 220 MPa (safety factor 1.27), and the maximum deformation of the shell is 0.3 mm (< 0.5 mm design threshold). There are no visible cracks after 1 million cycles, the wear of the bearing is < 0.01 mm, and the service life reaches more than 5 years.

[0119] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0120] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A high-performance adaptive adjustment supercharging conversion and recovery device, characterized in that, Comprising: A rotor (26) disposed at the central position inside the device, and the rotor (26) is driven to rotate by the pressure difference on both sides; A fiberglass shell (23) surrounding the outside of the rotor (26), and fixing tie rods (25) are evenly distributed along the circumferential direction on the outside of the fiberglass shell (23). One end of the fixing tie rod (25) is fixedly connected to one end of the fiberglass shell (23) through a fixing tie rod nut (24), and the other end of the fixing tie rod (25) is fastened to the other end of the fiberglass shell (23) through a fixing tie rod nut (24); Inlet and outlet flanges (14) respectively disposed at both ends of the fiberglass shell (23), and the inlet and outlet flanges (14) are used to connect the inlet and outlet water pipes (12). The ends of the inlet and outlet water pipes (12) are tightly connected to the inlet and outlet flanges (14) through inlet and outlet water pipe fixing screws (11), and inlet and outlet water pipe sealing rings (13) are provided at the pipe orifices of the inlet and outlet water pipes (12); An adaptive sealing system, including a mechanical seal spring (16), an inlet and outlet flange (14) and an inlet and outlet flow guiding member (17). One end of the mechanical seal spring (16) is connected to a spring fixing groove on the inlet and outlet flange (14), and the other end of the mechanical seal spring (16) is connected to a spring fixing groove on the inlet and outlet flow guiding member (17); A flow guiding hole sealing ring (15) is provided between the inlet and outlet flange (14) and the inlet and outlet flow guiding member (17).

2. The high-performance adaptive adjustment supercharging conversion recovery device according to claim 1, wherein: It further includes a bearing assembly, and the bearing assembly includes a first self-aligning ball bearing (05) and a second self-aligning ball bearing (06) symmetrically disposed on both sides of the main shaft of the rotor (26). The first self-aligning ball bearing (05) and the second self-aligning ball bearing (06) are both provided with bearing thrust rings (04) and bearing positioning rings (07); The first self-aligning ball bearing (05) and the second self-aligning ball bearing (06) are respectively sleeved on both ends of the main shaft of the rotor (26), and the first self-aligning ball bearing (05) and the second self-aligning ball bearing (06) respectively bear axial forces through the corresponding bearing thrust rings (04); The first self-aligning ball bearing (05) and the second self-aligning ball bearing (06) respectively cooperate with elastic snap rings (08) through the corresponding bearing positioning rings (07) to achieve axial positioning; Both the first self-aligning ball bearing (05) and the second self-aligning ball bearing (06) are of deep groove ball bearing structures. The outer rings of the first self-aligning ball bearing (05) and the second self-aligning ball bearing (06) are tightly fitted with the bearing seat holes inside the device, and the inner rings of the first self-aligning ball bearing (05) and the second self-aligning ball bearing (06) are interference-fitted with the main shaft of the rotor (26).

3. The high-performance adaptive adjustment supercharging conversion recovery device according to claim 1, characterized in that: The inlet and outlet flange (14) is provided with double sealing rings, including a first flange sealing ring (18) and a second flange sealing ring (19). The first flange sealing ring (18) and the second flange sealing ring (19) are respectively installed in the sealing grooves of the inlet and outlet flange (14). The inlet and outlet flange (14) and the connecting flange (20) are tightly connected by bolts. During the connection process, the first flange sealing ring (18) and the second flange sealing ring (19) are extruded and deformed to fill the gap between the inlet and outlet flange (14) and the connecting flange (20) to achieve fluid sealing.

4. The high-performance adaptive adjustment supercharging conversion recovery device according to claim 1, wherein: A mating Cotter joint is provided at the connection part between the end of the inlet and outlet water pipe (12) and the inlet and outlet flange (14); The inlet and outlet water pipe sealing ring (13) is an O-ring made of rubber. The inner diameter of the inlet and outlet water pipe sealing ring (13) is adapted to the outer diameter of the inlet and outlet water pipe (12), and the outer diameter of the inlet and outlet water pipe sealing ring (13) is adapted to the inner diameter of the sealing groove of the inlet and outlet flange (14).

5. The high-performance adaptive boost conversion and recovery device according to claim 1, wherein: It also includes an end cover (02) fixed by an end cover screw (01). The end cover (02) is of a disc-shaped structure. Threaded holes adapted to the end cover screw (01) are provided at the edge of the end cover (02). By tightening the end cover screw (01) with the threaded hole at the end of the fiberglass shell (23), the fixed connection between the end cover (02) and the fiberglass shell (23) is achieved; An end cover sealing ring (03) is provided between the end cover (02) and the fiberglass shell (23). The end cover sealing ring (03) is an annular rubber sealing ring. The end cover sealing ring (03) is installed in the sealing groove of the end cover (02) and plays a sealing role after the end cover (02) and the fiberglass shell (23) are connected.

6. The high-performance adaptive adjustment supercharging conversion recovery device according to claim 1, wherein: A first shell sealing ring (21) and a second shell sealing ring (22) are provided between the rotor (26) and the fiberglass shell (23). Both the first shell sealing ring (21) and the second shell sealing ring (22) are annular rubber sealing rings; The first shell sealing ring (21) and the second shell sealing ring (22) are respectively installed in the corresponding sealing grooves between the rotor (26) and the fiberglass shell (23). The main shaft of the rotor (26) is provided with a shaft sealing retaining ring (09) and a shaft sealing ring (10). The shaft sealing retaining ring (09) is sleeved on the main shaft of the rotor (26), and the shaft sealing ring (10) is installed in the sealing groove of the shaft sealing retaining ring (09); The first shell sealing ring (21), the second shell sealing ring (22), the shaft sealing retaining ring (09) and the shaft sealing ring (10) together constitute a multi-stage sealing structure to prevent fluid leakage.

7. The high-performance adaptive adjustment supercharging conversion recovery device according to claim 1, wherein: The fixed pull rod (25) is a high-strength metal rod. One end of the fixed pull rod (25) is fixedly connected to one end of the fiberglass shell (23) by means of threaded connection. After the other end of the fixed pull rod (25) passes through the corresponding hole at the other end of the fiberglass shell (23), it is tightened by the fixed pull rod nut (24) to generate a pre-tightening force on the fixed pull rod (25).

8. The high-performance adaptive adjustment supercharging conversion recovery device according to claim 3, wherein: The inlet and outlet flow guiding member (17) is in contact with the inner wall of the flow guiding hole on the inlet and outlet flow guiding member (17) through the flow guiding hole sealing ring (15). A sealing gap is maintained between the inlet and outlet flange (14) and the inlet and outlet flow guiding member (17) by the mechanical seal spring (16).

9. The high-performance adaptive adjustment supercharging conversion recovery device according to claim 1, characterized in that: An energy conversion method is adopted to drive the rotor (26) to rotate. During the rotation of the rotor (26), high-pressure concentrated liquid and low-pressure original liquid are respectively input at preset pressures and flows. The energy transfer formula is: ； ； ； Wherein, represents the amount of energy transfer achieved by the high-performance adaptive boost conversion recovery device; represents the pressure difference; is the pressure of the high-pressure fluid, is the pressure of the low-pressure fluid, represents the average flow rate; is the flow rate of the high-pressure fluid, is the flow rate of the low-pressure fluid.

10. The high-performance adaptive adjustment supercharging conversion recovery device according to claim 9, characterized in that: The adaptive sealing system adopts a method for dynamically adjusting the sealing gap, and establishes a balance formula through the elastic coefficient of the mechanical seal spring (16) and the contact area of the diversion hole sealing ring (15) as follows: ； Wherein, is the spring compression amount, is the friction coefficient, is the normal force of the sealing surface to maintain the initial clearance and dynamic compensation accuracy of the inlet and outlet flow guiding members (17).

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