CN112337307A - Reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery - Google Patents
Reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery Download PDFInfo
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- CN112337307A CN112337307A CN202011270150.6A CN202011270150A CN112337307A CN 112337307 A CN112337307 A CN 112337307A CN 202011270150 A CN202011270150 A CN 202011270150A CN 112337307 A CN112337307 A CN 112337307A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/06—Energy recovery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/10—Accessories; Auxiliary operations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/143—Sealing provided on the piston
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/138—Water desalination using renewable energy
- Y02A20/144—Wave energy
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Hydraulic Motors (AREA)
Abstract
The invention discloses a reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery, belonging to the technical field of seawater desalination. Be equipped with along the inside and outside jar hole of circumferencial direction evenly distributed on the cylinder body, the cylinder body passes through cylinder body sleeve nestification in electric motor rotor, receives motor direct drive. The energy recovery is realized by introducing high-pressure concentrated seawater into the rod cavity through the flow distribution window and the corresponding flow channel in the piston contraction process, working on the piston by utilizing the pressure energy of the high-pressure concentrated seawater, and pressurizing the raw seawater under the driving of the motor. The invention organically integrates the motor, the swash plate type axial plunger pump, the booster pump and the energy recovery device together, greatly improves the integration level of the reverse osmosis seawater desalination system, simultaneously improves the working efficiency of the system and reduces the energy consumption of the system.
Description
Technical Field
The invention relates to the field of seawater desalination, in particular to a reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery.
Background
China is one of countries with scarce water resources in the world, and the per-capita water resource is 1/4 of the per-capita quantity in the world. The reverse osmosis seawater desalination technology is an effective way for solving the shortage of water resources in China. Besides the membrane component, the integration level, energy consumption and efficiency of a high-pressure pump, a booster pump, a motor and an energy recovery device in the reverse osmosis seawater desalination system are key indexes for measuring the technical level of the system. In the traditional reverse osmosis seawater desalination system, the four elements exist independently, the system integration level is low, the required installation space is large, and large energy transfer loss exists among the elements, so that the system energy consumption is high and the efficiency is low. Therefore, a reverse osmosis seawater desalination motor pump which has higher integration level and working efficiency, is designed by fusing the four independent elements in principle and structure and has lower energy consumption is urgently needed to be developed.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery, which is mainly used for improving the integration level and the operation efficiency of a seawater desalination system and reducing the energy consumption of the system.
The invention provides a reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery, which comprises a front end cover, a rear end cover, a motor stator, a motor rotor, a bearing, an O-shaped sealing ring, a cylinder sleeve, a cylinder, a piston end cover, a swash plate, a double-acting flow distribution plate, a return plate, a sliding shoe, a pre-tightening spring and a self-cooling flow passage, and is characterized in that: the outer circular surface of the cylinder body is fixedly connected with the inner circular surface of the cylinder body sleeve in the circumferential direction, the outer circular surface of the cylinder body is connected with the inner circular surface of the cylinder body sleeve in the axial direction in a floating manner, the outer circular surface of the cylinder body sleeve is fixedly connected with the inner circular surface of the motor rotor, the cylinder body is provided with an outer cylinder hole and an inner cylinder hole which are uniformly distributed along the circumferential direction, the outer cylinder hole is a through hole, the through hole is a waist-shaped hole at one side close to the double-acting port plate, the rest part of the through hole is a cylindrical hole, the bottom of the blind hole is provided with a round hole communicated with the through hole, and the piston comprises a piston rod part and a piston head part, the piston rod part is arranged on the cylinder hole on the outer side of the cylinder body, the end part of the piston rod part is fixed through the piston end cover, the piston is matched with the cylinder hole on the outer side of the cylinder body to form a raw material seawater cavity and an energy recovery cavity, the energy recovery cavity is communicated with the cylinder hole on the inner side of the cylinder body, the raw material seawater cavity and the energy recovery cavity are communicated with the flow distribution windows on the inner side and the outer side of the double-acting flow distribution plate, a concentrated seawater high-pressure flow passage, a concentrated seawater low-pressure flow passage, a raw material seawater low-pressure flow passage and a raw material seawater high-pressure flow passage are arranged in the rear end cover, the flow distribution windows on the inner side and the outer side are respectively communicated with the concentrated seawater high-pressure flow passage, the concentrated seawater low-pressure flow passage, the raw material seawater low-pressure flow passage and the, the first end face of the sliding shoe is connected with the end face of the swash plate, a certain included angle is formed between the end face of the swash plate and the axis of the cylinder body, the end face of the swash plate is fixedly connected with the end face of the front end cover through a positioning pin, the end face of the double-acting valve plate is fixedly connected with the end face of the rear end cover through a positioning pin, the first end of the O-shaped sealing ring is connected with the motor stator, the second end of the O-shaped sealing ring is connected with the annular grooves of the front end cover and the rear end cover, the self-cooling flow channel is formed by the flow channel hole and the flow channel of the front end cover, and the flow channel hole outside the motor stator and.
The cylinder body and the motor rotor are supported and rotated by a bearing between the cylinder body sleeve and the front end cover and the rear end cover, outer circular surfaces at two ends of the cylinder body sleeve are fixedly connected with an inner circular surface of the bearing, circular shoulders at two ends of the cylinder body sleeve are contacted with the end surface of the bearing to play a limiting role, the outer circular surface of the bearing is fixedly connected with the inner circular surfaces of the front end cover and the rear end cover, the circular shoulders of the front end cover and the rear end cover are contacted with the end surface of the bearing to realize the limiting role, the inner circular surface of the cylinder body sleeve and the outer circular surface of the cylinder body sleeve are connected through keys to realize circumferential fixed connection and axial floating connection of the cylinder body and the cylinder body sleeve, and the outer circular surface of the middle section of the.
The axes of the cylinder body, the cylinder sleeve, the motor rotor, the inner circular surface of the motor stator, the inner circular surface of the front end cover, the inner circular surface of the rear end cover, the O-shaped sealing ring, the bearing, the swash plate and the double-acting port plate are on the same straight line, and the axes of the piston, the outer cylinder hole and the piston end cover are on the same straight line.
The sealing rings are symmetrically distributed about the motor stator, low-pressure raw material seawater flow channels are arranged in the front end cover, the motor stator and the rear end cover, and self-cooling flow channels in the pump body are formed among the front end cover, the motor stator and the rear end cover under the sealing effect of the O-shaped sealing rings.
Under the action of the piston, a raw seawater cavity is formed in the outer cylinder hole, an energy recovery cavity is formed in the inner cylinder hole, the concentrated seawater high-pressure flow channel and the raw seawater high-pressure flow channel are distributed on the same side of the rear end cover, and the concentrated seawater low-pressure flow channel and the raw seawater low-pressure flow channel are distributed on the other side of the rear end cover.
The axial positions of the piston and the piston shoe are provided with throttling through holes, the axial positions of the inner circular surfaces of the swash plate and the front end cover are provided with through holes, and the included angle between the end surface of the swash plate and the axial line of the cylinder body is related to the discharge capacity of the raw material seawater cavity and the energy recovery cavity.
Compared with the prior art, the invention has the following advantages:
the invention realizes the integrated design of the energy recovery device, the high-pressure pump and the booster pump by constructing a raw material seawater cavity and a concentrated seawater cavity on a swash plate type axial plunger pump cylinder body, constructing corresponding flow distribution windows on a flow distribution plate, constructing a corresponding low-pressure raw material seawater flow passage, a corresponding high-pressure concentrated seawater flow passage and a corresponding low-pressure concentrated seawater flow passage on an end cover, and simultaneously changing a plunger structure into a piston structure. Simultaneously through cylinder body sleeve with the cylinder body nestification inside electric motor rotor, by motor direct drive to realize the integration of pump and motor, reduced the energy loss that brings through the shaft drive among the prior art. The invention organically integrates the plunger pump principle, the motor principle, the energy recovery principle and the like, constructs the reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery, and has higher system integration level, lower system installation space, higher working efficiency and lower system energy consumption compared with the prior reverse osmosis seawater desalination technology.
Drawings
FIG. 1 is a schematic structural diagram of the whole reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery;
FIG. 2 is a schematic structural diagram of a valve plate of a reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery according to the present invention;
FIG. 3 is an axial cross-sectional view of a reverse osmosis desalination motor pump piston of the present invention that can achieve a high level of energy recovery integration;
FIG. 4 is a schematic view of a motor stator structure of a reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery according to the present invention;
FIG. 5 is a cross-sectional view of the front end cover of the reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery according to the present invention;
the device comprises a front end cover 1, a front end cover 2, a cylinder sleeve 3, a motor rotor 4, a return disc 5, a cylinder 501, an energy recovery cavity 502, a raw seawater cavity 6, a bearing 7, a rear end cover 701, a raw seawater high-pressure flow channel 702, a concentrated seawater high-pressure flow channel 703, a concentrated seawater low-pressure flow channel 704, a raw seawater low-pressure flow channel 8, a double-acting flow distribution disc 9, a motor stator 10, a piston 101, a piston rod part 102, a piston head part 11, a piston end cover 12, a sliding shoe 13, a swash plate 14 and an O-shaped sealing ring.
Detailed Description
The technical contents, structural features, attained objects and effects of the present invention are explained in detail below with reference to the accompanying drawings.
A reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery, as shown in fig. 1, which comprises a front end cover 1, a cylinder sleeve 2, a motor rotor 3, a return disc 4, a cylinder 5, an energy recovery cavity 501, a raw seawater cavity 502, a bearing 6, a rear end cover 7, a raw seawater high-pressure flow channel 701, a concentrated seawater high-pressure flow channel 702, a concentrated seawater low-pressure flow channel 703, a raw seawater low-pressure flow channel 704, a double-acting flow distribution disc 8, a motor stator 9, a piston 10, a piston rod part 101, a piston head part 102, a piston end cover 11, a piston shoe 12, a swash plate 13 and an O-shaped sealing ring 14. According to the invention, the swash plate type axial plunger pump, the booster pump, the motor and the energy recovery device are designed in a fusion manner, so that the integration level and the efficiency of the reverse osmosis seawater desalination system are higher, and the power consumption is lower.
As shown in fig. 1, the outer circumferential surface of the cylinder 5 is fixedly connected to the inner circumferential surface of the cylinder sleeve 2 in the circumferential direction and in the axial floating connection, the outer circumferential surface of the cylinder sleeve 2 is fixedly connected to the inner circumferential surface of the motor rotor 3, and the cylinder 5 is provided with outer cylinder holes and inner cylinder holes which are uniformly distributed in the circumferential direction.
As shown in fig. 2 and 3, the piston 10 includes a piston rod 101 and a piston head 102, the piston rod 101 is installed in an outer cylinder hole, and is fixed at an end by a piston end cover 11, the piston 10 is matched with the outer cylinder hole of the cylinder 5 to form a raw seawater cavity 502 and an energy recovery cavity 501, the raw seawater cavity 502 and the energy recovery cavity 501 are communicated with inner and outer side distribution windows on the double-acting distribution plate 8, a raw seawater high-pressure flow channel 701, a concentrated seawater high-pressure flow channel 702, a concentrated seawater low-pressure flow channel 703, and a raw seawater low-pressure flow channel 704 are respectively communicated with the corresponding distribution windows to complete the distribution process.
As shown in fig. 1 and 3, the outer surface of the piston head 102 is connected with the inner surface of the piston shoe 12 in a floating manner, the second end surface of the piston shoe 12 is connected with the second end surface of the return plate 4, the first end surface of the piston shoe 12 is connected with the end surface of the swash plate 13, the end surface of the swash plate 13 forms a certain included angle with the axis of the cylinder body 5, the end surface of the swash plate 13 is fixedly connected with the end surface of the front end cover 1 through a positioning pin, and the end surface of the double-acting thrust plate 8.
As shown in fig. 1, 4 and 5, a first end of the O-ring 14 is connected to the motor stator 9, a second end of the O-ring 14 is connected to the circular grooves of the front end cover 1 and the rear end cover 7, and the self-cooling flow channel is formed by a flow channel hole of the front end cover 1, a flow channel hole outside the motor stator 9, and a flow channel hole of the rear end cover 7.
As shown in FIG. 1, the axes of the cylinder 5, the cylinder sleeve 2, the motor rotor 3, the motor stator 9, the inner cylindrical surface of the front end cover 1, the inner cylindrical surface of the rear end cover 7, the sealing ring 14, the bearing 6, the swash plate 13 and the double-acting port plate 8 are on the same straight line, and the axes of the piston 10, the cylinder hole outside the cylinder and the piston end cover 11 are on the same straight line.
As shown in fig. 1, 4 and 5, the sealing rings 14 are symmetrically distributed about the motor stator 9, low-pressure raw material seawater flow channels are arranged in the front end cover 1, the motor stator 9 and the rear end cover 7, and a self-cooling flow channel of the pump body is formed among the front end cover 1, the motor stator 9 and the rear end cover 7 under the action of the sealing rings 14.
As shown in fig. 1, under the action of the piston 10, a raw seawater chamber 502 is formed in the cylinder bore on the outer side of the cylinder, an energy recovery chamber 501 is formed in the cylinder bore on the inner side of the cylinder, a concentrated seawater high-pressure flow passage 702 and a raw seawater high-pressure flow passage 701 in the rear end cover 7 are distributed on the same side of the rear end cover 7, and a concentrated seawater low-pressure flow passage 703 and a raw seawater low-pressure flow passage 704 are distributed on the other side of the rear.
As shown in fig. 1 and fig. 3, the axial positions of the piston 10 and the slipper 12 are provided with a throttling through hole, the axial positions of the inner circular surfaces of the swash plate 13 and the front end cover 1 are provided with through holes, and the included angle between the end surface of the swash plate 13 and the axial line of the cylinder 5 is related to the discharge capacity of the raw seawater cavity 502 and the energy recovery cavity 501.
The invention can realize the working principle of the reverse osmosis seawater desalination motor pump with highly integrated energy recovery: under the direct drive of the motor, when the piston 10 retracts, the cylinder 5 enters the energy recovery cavity 501 through the double-acting port plate 8, and drives the piston 10 together with the motor to pressurize the low-pressure seawater in the raw material seawater cavity 502 to form high-pressure seawater which flows out of the double-acting port plate 8, so that the energy recovery process of the high-pressure concentrated seawater is completed; when the piston 10 is extended, the low-pressure raw material seawater enters the raw material seawater cavity 502 through the double-acting port plate 8 under the driving of the motor, and simultaneously, the low-pressure concentrated seawater is discharged through the double-acting port plate 8, thereby completing the suction and discharge process and the energy recovery process of the whole motor pump.
The reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery is further described by combining the following embodiments:
the reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery is mainly used in occasions such as islands, ships, offshore platforms, medium and small seawater desalination and the like, and taking the offshore platforms as an example, the platform requires that the smaller the installation space of the reverse osmosis seawater desalination system is, the better the power consumption is, the lower the power consumption is, the better the power consumption is. The reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery has the advantages that the swash plate type axial plunger pump, the booster pump, the motor and the energy recovery device are organically integrated, so that the integration level of a reverse osmosis seawater desalination system is greatly improved, the installation space of the system is reduced, the working efficiency of the system is further improved, the energy consumption of the system is reduced, and the installation space and energy consumption requirements of an offshore platform can be well met.
The reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery is applied, the cylinder 5 is directly driven by a motor, when the piston 10 retracts into the cylinder, high-pressure concentrated seawater enters the energy recovery cavity 501 from a high-pressure concentrated seawater channel 702 in the rear end cover 7 through a corresponding flow distribution window of the double-acting flow distribution plate 8, and drives the piston 10 together with the motor to pressurize low-pressure seawater in the raw material seawater cavity 502 into high-pressure seawater, and the high-pressure seawater flows out from the corresponding flow distribution window of the double-acting flow distribution plate 8 through the high-pressure raw material seawater channel 701 in the rear end cover 7 to enter a reverse osmosis membrane component for desalination treatment, and the process finishes the energy recovery process of the high-pressure concentrated seawater; when the piston 10 extends out, under the driving of the motor, the low-pressure raw material seawater enters the raw material seawater cavity 502 through the corresponding flow distribution window of the double-acting flow distribution plate 8 from the low-pressure raw material seawater flow channel 704 in the rear end cover 7, and simultaneously, the low-pressure concentrated seawater is discharged through the corresponding flow distribution window of the double-acting flow distribution plate 8 through the low-pressure concentrated seawater flow channel 703 in the rear end cover 7, so that the suction and discharge process, the seawater desalination process and the energy recovery process of the raw material seawater and the concentrated seawater in the whole reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery are completed.
The reverse osmosis seawater desalination motor pump can realize high integration of energy recovery, and because the swash plate type axial plunger pump, the booster pump, the motor and the energy recovery device in the traditional reverse osmosis seawater desalination system are designed in a fusion manner, the reverse osmosis seawater desalination motor pump has the advantages of high integration level, small installation space and the like, and has higher working efficiency and lower energy consumption compared with the traditional reverse osmosis seawater desalination system.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.
Claims (8)
1. The utility model provides a can realize high integrated reverse osmosis sea water desalination motor pump of energy recuperation, includes cylinder body (5), body sleeve (2), front end housing (1), rear end cap (7), bearing (6), motor stator (9), electric motor rotor (3), two effect valve plates (8) and piston (10), its characterized in that: the outer circular surface of the cylinder body (5) is fixedly connected with the inner circular surface of the cylinder body sleeve (2) in the circumferential direction and is in floating connection in the axial direction, and the cylinder body (5) is provided with an outer cylinder hole and an inner cylinder hole which are uniformly distributed in the circumferential direction; the outer circular surface of a cylinder sleeve (2) is fixedly connected with the inner circular surface of a motor rotor (3), the cylinder sleeve (2) is connected with a motor stator (9) through bearings (6) at two ends of the cylinder sleeve, a front end cover (1) and a rear end cover (7) are respectively positioned at two ends of a motor pump, a double-acting flow distribution plate (8) is arranged at the bottom of a cylinder body (5) and floats in the axial direction, 8 flow distribution windows are arranged on the inner side and the outer side of the double-acting flow distribution plate (8), a piston (10) is arranged in the cylinder body (5), the piston (10) is matched with a cylinder hole at the outer side of the cylinder body to form a raw seawater cavity (502) and an energy recovery cavity (501), the raw seawater cavity (502) and the energy recovery cavity (501) are communicated with the flow distribution windows on the inner side and the outer side arranged on the double-acting flow distribution plate (8), and a concentrated seawater high-pressure flow passage (702, The raw material seawater low-pressure runner (704) and the raw material seawater high-pressure runner (701) are respectively communicated with the inner and outer side distribution windows arranged on the double-acting distribution plate (8).
2. The reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery as claimed in claim 1, wherein: the piston (10) comprises a piston rod part (101) and a piston head part (102), the piston head part (102) is connected with the inner circular surface of the sliding shoe (12) in a floating mode, the second end surface of the sliding shoe (12) is connected with the second end surface of the return plate (4), under the action of the return plate (4) and a pre-tightening spring, the sliding shoe (12) is connected with the inclined surface of the swash plate (13), a certain included angle is formed between the inclined surface of the swash plate (13) and the axis of the cylinder body (5), the piston rod part (101) is installed on a cylinder hole on the outer side of the cylinder body (5) and is fixed at the end through the piston end cover (11), the first end of the O-shaped sealing ring (14) is connected with the motor stator (9), and the second end of the O-shaped sealing ring (14) is connected with the circular grooves of the front end cover (1) and the rear end cover (7).
3. The reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery as claimed in claim 2, wherein: the front end cover (1) is fixedly connected with the right end face of a motor stator (9), the inner side end face of the front end cover (1) is fixedly connected with a swash plate (13), a rear end cover (7) is fixedly connected with the left end face of the motor stator (9), the inner side end face of the rear end cover (7) is connected with a double-acting valve plate (8), the double-acting valve plate (8) is circumferentially constrained through a positioning pin, a cylinder hole on the outer side of the cylinder body is a through hole, an opening on one side, close to the double-acting valve plate (8), of the through hole is a kidney-shaped hole, openings on the rest parts of the through hole are cylindrical holes matched with the piston (10), an inner side cylinder hole is a blind hole, an opening on one side, close to the double-acting valve plate (8), of the blind hole is a kidney-shaped hole, openings on the rest parts.
4. The reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery as claimed in claim 1, wherein: the cylinder body (5) and the motor rotor (3) are supported and rotated through the bearing (6) between the cylinder body sleeve (2) and the front end cover (1) and the rear end cover (7), outer circular surfaces at two ends of the cylinder body sleeve are fixedly connected with inner circular surfaces of the bearing (6), circular shoulders at two ends of the cylinder body sleeve (2) are in end surface contact with the bearing (6) to play a limiting role, the outer circular surfaces of the bearing (6) are fixedly connected with the inner circular surfaces of the front end cover (1) and the rear end cover (7), the circular shoulders of the front end cover (1) and the rear end cover (7) are in end surface contact with the bearing to achieve the limiting role, the inner circular surfaces of the cylinder body sleeve (2) and the cylinder body sleeve (2) are in circumferential fixed connection and axial floating connection through key connection, and the outer circular surfaces of the middle section of the cylinder body sleeve (2) are fixedly connected with the inner circular surfaces of the motor rotor (.
5. The reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery as claimed in claim 1, wherein: the axes of the cylinder body (5), the cylinder body sleeve (2), the motor rotor (3), the motor stator (9), the front end cover inner cylindrical surface, the rear end cover inner cylindrical surface, the O-shaped sealing ring (14), the bearing (6), the swash plate (13) and the double-acting valve plate (8) are on the same straight line, and the axes of the piston (10), the outer cylinder hole and the piston end cover are on the same straight line.
6. The reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery as claimed in claim 1, wherein: raw material seawater low-pressure flow channels (704) are arranged in the front end cover (1), the motor stator (9) and the rear end cover (7), and self-cooling flow channels in the pump body are formed among the front end cover (1), the motor stator (9) and the rear end cover (7) under the sealing action of the O-shaped sealing ring (14).
7. The reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery as claimed in claim 1, wherein: under the action of the piston (10), a raw seawater cavity (502) is formed in the outer cylinder hole, an energy recovery cavity (501) is formed in the inner cylinder hole, the concentrated seawater high-pressure flow channel (702) and the raw seawater high-pressure flow channel (701) are distributed on the same side of the rear end cover (7), and the concentrated seawater low-pressure flow channel (703) and the raw seawater low-pressure flow channel (704) are distributed on the other side of the rear end cover (7).
8. The reverse osmosis seawater desalination motor pump capable of realizing high integration of energy recovery as claimed in claim 2, wherein: the axial positions of the piston (10) and the slipper (12) are provided with throttling through holes, the axial positions of the inner circular surfaces of the swash plate (13) and the front end cover are provided with through holes, and the included angle between the end surface of the swash plate and the axial line of the cylinder body is related to the discharge capacity of the raw material seawater cavity (502) and the energy recovery cavity (501).
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| CN112337307B CN112337307B (en) | 2021-06-22 |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6176684B1 (en) * | 1998-11-30 | 2001-01-23 | Caterpillar Inc. | Variable displacement hydraulic piston unit with electrically operated variable displacement control and timing control |
| US6186747B1 (en) * | 1996-06-06 | 2001-02-13 | Haiwei Zhou | Axial plunger slurry pump |
| US20130081724A1 (en) * | 2011-09-30 | 2013-04-04 | General Electric Company | Desalination system with energy recovery and related pumps, valves and controller |
| WO2014165831A1 (en) * | 2013-04-05 | 2014-10-09 | Best Larry D | Synchronized dual well variable stroke and variable speed pump down control with regenerative assist |
| US20150298062A1 (en) * | 2012-07-31 | 2015-10-22 | Ronghui Zhu | Membrane seawater desalination pressurization and energy recovery integrated method and device |
| CN105526051A (en) * | 2016-01-19 | 2016-04-27 | 沃尔科技有限公司 | High-pressure plunger pump with energy recycling function |
| CN205370878U (en) * | 2016-01-19 | 2016-07-06 | 沃尔科技有限公司 | Energy recuperation's high pressure plunger pump |
| CN106286183A (en) * | 2016-10-10 | 2017-01-04 | 燕山大学 | The inclined disc type axial plunger displacement pump alive that fluid energy reclaims can be realized |
| CN207845222U (en) * | 2017-11-22 | 2018-09-11 | 上海齐耀动力技术有限公司 | A kind of sea water desalination energy-recuperation system |
| JP6412233B1 (en) * | 2017-09-22 | 2018-10-24 | 株式会社電業社機械製作所 | Energy recovery equipment |
| CN208252295U (en) * | 2018-03-08 | 2018-12-18 | 上海锋机五金模具有限公司 | A kind of high-pressure pump of integrated check valve |
| CN208933040U (en) * | 2018-08-02 | 2019-06-04 | 顾为东 | Wind power sea water desalination system |
| CN111022281A (en) * | 2019-12-26 | 2020-04-17 | 北京工业大学 | Sea water desalination high-pressure pump with few friction pairs and energy recovery integrated unit |
-
2020
- 2020-11-13 CN CN202011270150.6A patent/CN112337307B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6186747B1 (en) * | 1996-06-06 | 2001-02-13 | Haiwei Zhou | Axial plunger slurry pump |
| US6176684B1 (en) * | 1998-11-30 | 2001-01-23 | Caterpillar Inc. | Variable displacement hydraulic piston unit with electrically operated variable displacement control and timing control |
| US20130081724A1 (en) * | 2011-09-30 | 2013-04-04 | General Electric Company | Desalination system with energy recovery and related pumps, valves and controller |
| US20150298062A1 (en) * | 2012-07-31 | 2015-10-22 | Ronghui Zhu | Membrane seawater desalination pressurization and energy recovery integrated method and device |
| WO2014165831A1 (en) * | 2013-04-05 | 2014-10-09 | Best Larry D | Synchronized dual well variable stroke and variable speed pump down control with regenerative assist |
| CN205370878U (en) * | 2016-01-19 | 2016-07-06 | 沃尔科技有限公司 | Energy recuperation's high pressure plunger pump |
| CN105526051A (en) * | 2016-01-19 | 2016-04-27 | 沃尔科技有限公司 | High-pressure plunger pump with energy recycling function |
| CN106286183A (en) * | 2016-10-10 | 2017-01-04 | 燕山大学 | The inclined disc type axial plunger displacement pump alive that fluid energy reclaims can be realized |
| JP6412233B1 (en) * | 2017-09-22 | 2018-10-24 | 株式会社電業社機械製作所 | Energy recovery equipment |
| CN207845222U (en) * | 2017-11-22 | 2018-09-11 | 上海齐耀动力技术有限公司 | A kind of sea water desalination energy-recuperation system |
| CN208252295U (en) * | 2018-03-08 | 2018-12-18 | 上海锋机五金模具有限公司 | A kind of high-pressure pump of integrated check valve |
| CN208933040U (en) * | 2018-08-02 | 2019-06-04 | 顾为东 | Wind power sea water desalination system |
| CN111022281A (en) * | 2019-12-26 | 2020-04-17 | 北京工业大学 | Sea water desalination high-pressure pump with few friction pairs and energy recovery integrated unit |
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