Self-pressurization energy recovery device of high-pressure pump

Abstract

The utility model belongs to the technical field of high-pressure pump self-pressurization energy recovery, and particularly relates to a high-pressure pump self-pressurization energy recovery device which comprises a base, a capsule is installed on the inner wall of a shell, nitrogen is filled in the capsule, a plurality of sets of circular grooves are formed in the inner wall of the shell, balls are assembled in the circular grooves in a sliding mode, and the balls are connected with the base. The outer wall of the capsule is attached to the balls, a first rubber supporting ring is installed on the inner wall of one side of the shell, a second rubber supporting ring is installed in the other side of the shell and located at the position of the material guiding opening, energy recovery and utilization are achieved through shrinkage and expansion of the capsule, namely, the capsule can stretch out and draw back repeatedly and rub against the inner wall of the shell, and therefore the capsule can be recycled. The first rubber supporting ring and the second rubber supporting ring protect the capsule when the capsule expands, meanwhile, the balls are rotationally installed on the whole inner wall of the shell, sliding friction is conducted between the capsule and the balls when the capsule stretches out and draws back repeatedly, friction resistance is reduced, the service life of the capsule can be prolonged, and the protection performance of the capsule can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of self-pressurization energy recovery of a high-pressure pump, in particular to a self-pressurization energy recovery device for a high-pressure pump. Background Art

[0002] High-pressure pumps can be used for high-pressure water jet-assisted rock breaking and coal removal, fluid supply for underground hydraulic props, pumping high-pressure water with hydraulic expansion metal anchors, dredging, desilting and cleaning of large underground pipelines, etc. During the operation of the high-pressure pump, an energy recovery device can be used to effectively recover and utilize the energy of the high-pressure pump.

[0003] A Chinese patent with publication number CN111348726A discloses a booster pump energy recovery integrated machine and working method for seawater desalination, the integrated machine includes a motor, a booster device and an energy recovery device which are coaxially connected in sequence; the booster device is a centrifugal pump; the motor and the centrifugal pump are coaxially connected; the energy recovery device is self-driven by hydraulic power; the centrifugal pump and the energy recovery device are provided with communicating flow channels inside and between the two; a pressurized seawater inlet is provided between the energy recovery device and the centrifugal pump; the water outlet of the centrifugal pump is the high-pressure seawater outlet connected to the membrane assembly; the energy recovery device includes a high-pressure concentrated water inlet and a low-pressure concentrated water outlet which are connected to the internal flow channel thereof; the high-pressure concentrated water pressurizes the low-pressure seawater and then provides it to the membrane assembly through the centrifugal pump, and the high-pressure concentrated water is discharged through the low-pressure concentrated water outlet after the pressure is relieved, and the structure is compact and the use is stable and flexible.

[0004] In the process of energy recovery, the existing boosting energy recovery device stores energy by compressing the nitrogen in the capsule. The capsule will repeatedly expand and contract and rub against the inner wall of the shell, causing wear of the capsule, reducing the energy storage effect, reducing the service life of the capsule, and resulting in poor protection of the capsule. Therefore, a high-pressure pump self-boosting energy recovery device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems existing in the prior art, the utility model proposes a high-pressure pump self-pressurization energy recovery device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a high-pressure pump self-pressurization energy recovery device described in the utility model comprises a base, a support seat is installed on the base, a shell is installed on the support seat, an air filling tube is installed on one side of the shell, an air filling valve is installed on the air filling tube, a capsule is installed on the inner wall of the shell, the capsule is filled with nitrogen, one end of the capsule is connected to the air filling tube, a plurality of groups of circular grooves are provided on the inner wall of the shell, balls are slidably assembled in the circular grooves, the balls are arranged in a plurality of groups, and the plurality of groups of balls are arranged in an array structure, the balls are assembled on the entire inner wall of the shell, the outer wall of the capsule is in contact with the balls, and the A first rubber support ring is installed on the inner wall of one side of the shell, and the first rubber support ring is located at the inflation tube. A second rubber support ring is installed on the inside of the other side of the shell, and a material guide port is opened on the other side of the shell, and the second rubber support ring is located at the material guide port. Energy recovery and utilization are achieved through the contraction and expansion of the capsule, that is, the capsule will repeatedly expand and contract and rub against the inner wall of the shell. The first rubber support ring and the second rubber support ring protect the capsule when the capsule expands. At the same time, a ball is rotatably installed on the entire inner wall of the shell. The capsule slides and rubs against the ball when it repeatedly expands and contracts, thereby reducing friction resistance, increasing the service life of the capsule, and benefiting to improving the protectiveness of the capsule.

[0007] Preferably, a mushroom-shaped valve is installed on the inner wall of the guide port, a liquid inlet pipe is installed on the other side of the shell, a machine base is installed on the base, a high-pressure pump is installed on the machine base, a driving motor is installed on the high-pressure pump, a feed pipe is installed on one side of the high-pressure pump, a discharge pipe is installed on the other end of the high-pressure pump, a three-way pipe is installed on the discharge pipe, a check valve is installed on the three-way pipe, a pipe with a check valve installed on the three-way pipe is connected to the discharge pipe, one of the pipes of the three-way pipe is connected to the liquid inlet pipe, and the other pipe of the three-way pipe is connected to the discharge pipe, and a small part of high-pressure water enters the shell from the liquid inlet pipe. The high-pressure water compresses the nitrogen in the shell, and the capsule outside the nitrogen shrinks until the pressure inside the shell is consistent with that in the tee, thereby realizing self-pressurization energy recovery of the high-pressure pump; through the unstable internal pressure of the high-pressure pump, the capsule inside the shell expands, and the internal water is guided into the tee, and then the water is discharged from the discharge pipe at high pressure, thereby realizing the stable pressure of the high-pressure pump drainage; this structure enables the high-pressure pump to store the inertial energy and hydraulic energy generated during operation, and reuse this part of energy to improve the efficiency and performance of the high-pressure pump, thereby realizing effective energy recovery and utilization, which is beneficial to reducing energy consumption costs.

[0008] The utility model is beneficial in that:

[0009] 1. The utility model realizes energy recovery and utilization through the contraction and expansion of the capsule, that is, the capsule will repeatedly expand and contract and rub against the inner wall of the shell. The first rubber support ring and the second rubber support ring protect the capsule when the capsule expands. At the same time, a ball is rotatably installed on the entire inner wall of the shell. When the capsule repeatedly expands and contracts, it slides and rubs against the ball, which reduces friction resistance, can increase the service life of the capsule, and is beneficial to improving the protectiveness of the capsule.

[0010] 2. The utility model allows a small amount of high-pressure water to enter the shell from the liquid inlet pipe, and the high-pressure water compresses the nitrogen in the shell, and the capsule outside the nitrogen shrinks until the pressure inside the shell is consistent with that in the three-way pipe, thereby realizing self-pressurization energy recovery of the high-pressure pump; through the unstable internal pressure of the high-pressure pump, the capsule inside the shell expands, and the internal water is guided into the three-way pipe, and then the water is discharged from the discharge pipe at high pressure, thereby realizing the stable pressure of the high-pressure pump drainage; this structure enables the high-pressure pump to store the inertial energy and hydraulic energy generated during operation, and reuse this part of energy to improve the efficiency and performance of the high-pressure pump, thereby realizing effective energy recovery and utilization, which is beneficial to reducing energy consumption costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a schematic diagram of a three-dimensional structure from a first-person perspective;

[0013] Figure 2 It is a schematic diagram of the three-dimensional structure inside the shell;

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the ball bearing;

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the high-pressure pump.

[0016] In the figure: 1. base; 2. support seat; 3. shell; 4. inflation tube; 5. inflation valve; 6. capsule; 7. round groove; 8. ball; 9. first rubber support ring; 10. second rubber support ring; 11. material guide port; 12. mushroom valve; 13. liquid inlet pipe; 14. high-pressure pump; 15. drive motor; 16. feed pipe; 17. discharge pipe; 18. three-way pipe; 19. check valve; 20. discharge pipe. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4 As shown, a high-pressure pump self-pressurization energy recovery device includes a base 1, a support base 2 is installed on the base 1, a shell 3 is installed on the support base 2, an air charging tube 4 is installed on one side of the shell 3, an air charging valve 5 is installed on the air charging tube 4, a capsule 6 is installed on the inner wall of the shell 3, the capsule 6 is filled with nitrogen, one end of the capsule 6 is connected to the air charging tube 4, a plurality of groups of circular grooves 7 are provided on the inner wall of the shell 3, balls 8 are slidably assembled in the circular grooves 7, a plurality of groups of balls 8 are provided, and the plurality of groups of balls 8 are arranged in an array structure, the balls 8 are assembled on the entire inner wall of the shell 3, the outer wall of the capsule 6 is in contact with the balls 8, and the shell 3 is provided with a plurality of groups of balls 8. A first rubber support ring 9 is installed on the inner wall of one side of the shell 3, and the first rubber support ring 9 is located at the inflation tube 4. A second rubber support ring 10 is installed inside the other side of the shell 3. A material guide port 11 is opened on the other side of the shell 3, and the second rubber support ring 10 is located at the material guide port 11. A mushroom valve 12 is installed on the inner wall of the material guide port 11. A liquid inlet pipe 13 is installed on the other side of the shell 3. A machine base is installed on the base 1, and a high-pressure pump 14 is installed on the machine base. A drive motor 15 is installed on the high-pressure pump 14. A feed pipe 16 is installed on one side of the high-pressure pump 14, and a discharge pipe is installed at the other end of the high-pressure pump 14. 17, a three-way pipe 18 is installed on the discharge pipe 17, a check valve 19 is installed on the three-way pipe 18, a pipeline on which the check valve 19 is installed is connected to the discharge pipe 17, one of the pipelines of the three-way pipe 18 is connected to the liquid inlet pipe 13, and the other pipeline of the three-way pipe 18 is connected to the discharge pipe 20; when working, the existing pressurized energy recovery device realizes energy storage by compressing the nitrogen in the capsule 6 during the energy recovery process, and the capsule 6 will repeatedly expand and contract and rub against the inner wall of the shell 3, which reduces the service life of the capsule 6, resulting in the poor protection of the capsule 6 The difference is that through the operation of the high-pressure pump 14, water enters the high-pressure pump 14 through the feed pipe 16, and then is discharged from the discharge pipe 17 of the high-pressure pump 14 at high pressure. After passing through the three-way pipe 18, most of the high-pressure water is discharged from the discharge pipe 20 at high pressure, and a small part enters the shell 3 from the liquid inlet pipe 13. The high-pressure water compresses the nitrogen in the shell 3, and the capsule 6 outside the nitrogen shrinks until the pressure inside the shell 3 is consistent with that in the three-way pipe 18, thereby realizing the storage of the inertial energy and hydraulic energy generated by the high-pressure pump 14 inside the shell 3, and realizing the self-pressurization energy recovery of the high-pressure pump 14;

[0019] The main function of the mushroom valve 12 is to control the pressure stability in the housing 3 and protect the housing 3 from being affected by excessively high or low pressure;

[0020] When the internal pressure of the high-pressure pump 14 is unstable, it is necessary to use the boosting energy. Through the unstable internal pressure of the high-pressure pump 14, the pressure in the three-way pipe 18 is made lower than the pressure in the shell 3. The capsule 6 inside the shell 3 expands, and the water inside is guided into the three-way pipe 18. The check valve 19 prevents the water from flowing back into the high-pressure pump 14. Then the water is discharged from the discharge pipe 20 at high pressure, so that the pressure of the water discharged by the high-pressure pump 14 is stable.

[0021] This structure enables the high-pressure pump 14 to store the inertial energy and hydraulic energy generated during operation, and reuse this energy to improve the efficiency and performance of the high-pressure pump 14, thereby achieving effective energy recovery and utilization and reducing energy consumption costs;

[0022] During this process, energy recovery and utilization are achieved through the contraction and expansion of the capsule 6, that is, the capsule 6 will repeatedly expand and contract and rub against the inner wall of the shell 3. The first rubber support ring 9 and the second rubber support ring 10 protect the capsule 6 when the capsule 6 expands. At the same time, the ball 8 is rotatably installed on the entire inner wall of the shell 3. The capsule 6 slides and rubs against the ball 8 when it repeatedly expands and contracts, which reduces the friction resistance, can increase the service life of the capsule 6, and is beneficial to improving the protectiveness of the capsule 6.

[0023] Working principle: In the process of energy recovery, the existing boost energy recovery device stores energy by compressing the nitrogen in the capsule 6. The capsule 6 will repeatedly expand and contract and rub against the inner wall of the shell 3, which reduces the service life of the capsule 6 and leads to poor protection of the capsule 6. Through the operation of the high-pressure pump 14, water enters the high-pressure pump 14 through the feed pipe 16, and then is discharged from the discharge pipe 17 of the high-pressure pump 14 at high pressure. After passing through the three-way pipe 18, most of the high-pressure water is discharged from the discharge pipe 20 at high pressure, and a small part enters the shell 3 from the liquid inlet pipe 13. The high-pressure water compresses the nitrogen in the shell 3, and the capsule 6 outside the nitrogen shrinks until the pressure inside the shell 3 is consistent with that in the three-way pipe 18, thereby realizing the storage of the inertial energy and hydraulic energy generated by the high-pressure pump 14 inside the shell 3, and realizing the self-boosting energy recovery of the high-pressure pump 14; the main function of the mushroom valve 12 is to control the pressure stability in the shell 3 and protect the shell 3 from excessively high or low pressure; when the internal pressure of the high-pressure pump 14 is unstable, it is necessary to use the boost energy, through The internal pressure of the high-pressure pump 14 is unstable, so that the pressure in the three-way pipe 18 is lower than the pressure in the shell 3. The capsule 6 inside the shell 3 expands and guides the internal water into the three-way pipe 18. The check valve 19 prevents the water from flowing back into the high-pressure pump 14. Then the water is discharged from the discharge pipe 20 at high pressure, so that the pressure of the high-pressure pump 14 is stable. This structure allows the high-pressure pump 14 to store the inertial energy and hydraulic energy generated during operation, and reuse this part of energy to improve the efficiency and performance of the high-pressure pump 14, thereby realizing effective energy recovery and utilization and reducing energy consumption costs. In this process, energy recovery and utilization are realized through the contraction and expansion of the capsule 6, that is, the capsule 6 will repeatedly expand and contract and rub against the inner wall of the shell 3. The first rubber support ring 9 and the second rubber support ring 10 protect the capsule 6 when the capsule 6 expands. At the same time, the ball 8 is rotatably installed on the entire inner wall of the shell 3. The capsule 6 slides and rubs against the ball 8 when it expands and contracts repeatedly, which reduces the friction resistance, can increase the service life of the capsule 6, and is conducive to improving the protectiveness of the capsule 6.

[0024] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A high-pressure pump self-pressurization energy recovery device, characterized in that The invention comprises a base (1), a support base (2) is mounted on the base (1), a shell (3) is mounted on the support base (2), an air charging tube (4) is mounted on one side of the shell (3), an air charging valve (5) is mounted on the air charging tube (4), a capsule (6) is mounted on the inner wall of the shell (3), the capsule (6) is filled with nitrogen, one end of the capsule (6) is connected to the air charging tube (4), a plurality of groups of circular grooves (7) are arranged on the inner wall of the shell (3), a ball (8) is slidably mounted in the circular groove (7), and the ball (8) is (8) A plurality of groups of balls (8) are provided, and the plurality of groups of balls (8) are arranged in an array structure. The balls (8) are assembled on the entire inner wall of the shell (3), and the outer wall of the capsule (6) is in contact with the balls (8). A first rubber support ring (9) is installed on the inner wall of one side of the shell (3), and the first rubber support ring (9) is located at the inflation tube (4). A second rubber support ring (10) is installed inside the other side of the shell (3), and a material guide port (11) is opened on the other side of the shell (3), and the second rubber support ring (10) is located at the material guide port (11).

2. A high-pressure pump self-pressurization energy recovery device according to claim 1, characterized in that: A mushroom-shaped valve (12) is installed on the inner wall of the material guide port (11), and a liquid inlet pipe (13) is installed on the other side of the housing (3).

3. The high-pressure pump self-pressurization energy recovery device according to claim 1, characterized in that: The base (1) is provided with a machine base, the machine base is provided with a high-pressure pump (14), and the high-pressure pump (14) is provided with a driving motor (15).

4. A high-pressure pump self-pressurization energy recovery device according to claim 3, characterized in that: A feed pipe (16) is installed on one side of the high-pressure pump (14), and a discharge pipe (17) is installed on the other end of the high-pressure pump (14).

5. A high-pressure pump self-pressurization energy recovery device according to claim 4, characterized in that: A three-way pipe (18) is installed on the discharge pipe (17), and a check valve (19) is installed on the three-way pipe (18).

6. A high-pressure pump self-pressurization energy recovery device according to claim 5, characterized in that: A pipeline with a check valve (19) installed on the three-way pipe (18) is connected to the discharge pipe (17), one pipeline of the three-way pipe (18) is connected to the liquid inlet pipe (13), and the other pipeline of the three-way pipe (18) is connected to the discharge pipe (20).

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