CN109550399B - High-throughput rotor type energy recovery device - Google Patents
High-throughput rotor type energy recovery device Download PDFInfo
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- CN109550399B CN109550399B CN201811501596.8A CN201811501596A CN109550399B CN 109550399 B CN109550399 B CN 109550399B CN 201811501596 A CN201811501596 A CN 201811501596A CN 109550399 B CN109550399 B CN 109550399B
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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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Abstract
A rotor type energy recovery device with large treatment capacity. The device comprises a transmission mechanism, an oil tank, an upper sealing disc, an upper end disc, a rotor sleeve, a lower end disc and a lower sealing disc; the oil tank, the upper sealing disc, the upper end disc, the rotor sleeve, the lower end disc and the lower sealing disc are sequentially and coaxially connected, and the transmission mechanism is arranged in the oil tank and is in driving connection with a plurality of rotors; a plurality of rotors are arranged in pore channels uniformly distributed in the circumferential direction of the rotor sleeve; annular rib plates are arranged at one ends of the upper end plate and the lower end plate, high-pressure brine is connected with an outer annular groove of the upper end plate through a connecting pipe F, pressure-relief brine is connected with an inner annular groove of the upper end plate through a connecting pipe G, pressurized seawater is connected with an outer annular groove of the lower end plate through a connecting pipe E, and low-pressure seawater is connected with an inner annular groove of the lower end plate through a connecting pipe D; the lower end of the upper end disc and the upper end of the lower end disc are respectively provided with a plurality of pairs of liquid collecting grooves, the liquid collecting grooves on the inner side of the end disc are communicated with the inner annular groove on the other end of the end disc, and the liquid collecting grooves on the outer side of the end disc are communicated with the outer annular groove on the other end of the end disc. The invention can greatly improve the processing capacity of the device.
Description
Technical Field
The invention relates to a pressure energy recovery device applied to a reverse osmosis sea water desalination system, in particular to a rotor type energy recovery device with large treatment capacity.
Background
The positive displacement energy recovery device realizes one-step conversion of pressure energy, and has the advantage of high energy recovery efficiency. The rotor type energy recovery device is a typical representative of a positive displacement type energy recovery device, can directly transfer the pressure energy of high-pressure brine to low-pressure seawater, reduces the treatment capacity of a high-pressure pump, and is important energy-saving equipment in a reverse osmosis seawater desalination system.
The known Chinese patent CN200620151430 relates to a rotary pressure exchanger for a sea water or brackish water reverse osmosis desalination system and an external driving rotor type energy recovery device of CN201611266165, and the known Chinese patent CN200620151430 relates to a positive displacement type energy recovery device which has the defects of small device treatment capacity and high manufacturing cost.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the rotor type energy recovery device with large treatment capacity, which can greatly improve the treatment capacity of the device and reduce the manufacturing cost of the device.
The technical scheme adopted for solving the technical problems is as follows: the device comprises a transmission mechanism, an oil tank, an upper sealing disc, an upper end disc, a rotor sleeve, a lower end disc and a lower sealing disc; the oil tank, the upper sealing disc, the upper end disc, the rotor sleeve, the lower end disc and the lower sealing disc are sequentially and coaxially connected and tightly pressed and sealed, and the transmission mechanism is arranged in the oil tank and is in driving connection with the rotor; each rotor is provided with a plurality of pore canals I in the circumferential direction, and a section of blind hole is formed in the center of each rotor; a plurality of through holes IV running along the axis are uniformly distributed in the circumferential direction of the rotor sleeve, and a corresponding number of rotors are arranged in the holes IV; the structure of the lower end of the upper end disc is the same as that of the upper end of the lower end disc, a plurality of pairs of concave-convex opposite liquid collecting grooves are formed in the upper end disc, the number of pairs of liquid collecting grooves is the same as that of the rotors, the positions of the pair of liquid collecting grooves are the same as that of the rotor pore canal I, and the area of a rib plate between the pair of liquid collecting grooves is larger than that of one rotor pore canal I; the upper end of the upper end plate is provided with an annular rib plate I, the position of the annular rib plate I is positioned between concave-convex opposite liquid collecting grooves at the lower end of the upper end plate, an inner annular groove of the upper end plate and an outer annular groove of the upper end plate are respectively formed inside and outside the annular rib plate I, high-pressure brine is connected with the outer annular groove of the upper end plate through a connecting pipe F, and pressure-released brine is connected with the inner annular groove of the upper end plate through a connecting pipe G; the lower end of the lower end plate is provided with an annular rib plate II, the position of the annular rib plate II is positioned between concave-convex opposite liquid collecting grooves at the upper end of the lower end plate, an inner annular groove of the lower end plate and an outer annular groove of the lower end plate are respectively formed inside and outside the annular rib plate II, pressurized seawater is connected with the outer annular groove of the lower end plate through a connecting pipe E, and low-pressure seawater is connected with the inner annular groove of the lower end plate through a connecting pipe D; the liquid collecting groove on the upper end disc, which is relatively positioned on the inner side, is communicated with the inner annular groove of the upper end disc, and the liquid collecting groove on the upper end disc, which is relatively positioned on the outer side, is communicated with the outer annular groove of the upper end disc; the liquid collecting groove on the lower end disc, which is relatively positioned on the inner side, is communicated with the inner annular groove of the lower end disc, and the liquid collecting groove on the lower end disc, which is relatively positioned on the outer side, is communicated with the outer annular groove of the lower end disc: the liquid collecting groove on the outer side of the upper end disc is communicated with the liquid collecting groove on the outer side of the lower end disc, and the liquid collecting groove on the inner side of the upper end disc is communicated with the liquid collecting groove on the inner side of the lower end disc.
Compared with the prior art, the high-throughput rotor type energy recovery device has the advantages that through the novel rotor, the rotor sleeve, the upper end disc and the lower end disc structure design, the core components of the rotor type energy recovery devices are innovatively coupled together, and one power device is shared, so that the throughput of the device is improved, and the manufacturing cost of the device is reduced.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a full cross-sectional view of one embodiment of the present invention.
Fig. 2 is a cross-sectional view at A-A in fig. 1.
Fig. 3 is a cross-sectional view at B-B in fig. 1.
Fig. 4 is a cross-sectional view at C-C in fig. 1.
Fig. 5 is an end view of a rotor in an embodiment of the invention.
Fig. 6 is an end view of a rotor sleeve in an embodiment of the invention.
Wherein: 1. the device comprises a driving shaft, 2, an upper bearing gland, 3-1, an upper rolling bearing, 3-2, a lower rolling bearing, 4, a driving wheel, 5, a lower bearing gland, 6, an oil tank, 7, a driven shaft, 8, a driven wheel, 9, an upper sealing disc, 10, a sliding bearing, 11, an upper end disc, 11-1, an annular rib plate I, 11-2, an upper end disc outer annular groove, 11-3, an upper end disc inner annular groove, 11-4, a pore channel III, 12, a rotor, 12-1, a pore channel I, 12-2, a blind hole, 13, a rotor sleeve, 13-1, a pore channel IV, 14, a lower end disc, 14-1, an annular rib plate II, 14-2, a lower end disc outer annular groove, 14-3, a lower end disc inner annular groove, 14-4, a liquid collecting groove, 15 and a lower sealing disc.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
FIGS. 1 to 6 show a schematic structural view of a preferred embodiment of the present invention, a high throughput rotor type energy recovery device of FIG. 1 comprising a transmission mechanism, an oil tank 6, an upper seal disk 9, an upper end disk 11, a rotor 12, a rotor sleeve 13, a lower end disk 14 and a lower seal disk 15; the oil tank 6, the upper sealing disc 9, the upper end disc 11, the rotor sleeve 13, the lower end disc 14 and the lower sealing disc 15 are sequentially and coaxially connected, and are tightly pressed by bolts and sealed by rubber rings; the transmission mechanism comprises a driving shaft 1, an upper bearing gland 2, an upper rolling bearing 3-1, a lower rolling bearing 3-2, a driving wheel 4, a lower bearing gland 5, a driven shaft 7, a driven wheel 8 and a sliding bearing 10.
Wherein, the rotor 12 is provided with a plurality of pore canals I12-1 in the circumferential direction, the cross section of the pore canals I12-1 can be round or fan-shaped, and the number of the pore canals I12-1 can be odd or even; the center of the rotor 12 is provided with a section of blind hole 12-2, the front end of the blind hole 12-2 is a round hole, and the tail end of the blind hole 12-2 is square (see figure 5); a plurality of through holes IV 13-1 running along the axis are uniformly distributed in the circumferential direction of the rotor sleeve 13, and a corresponding number of rotors 12 are arranged in the through holes IV 13-1 (see FIG. 6); the height of the rotor sleeve 13 is 0.02 mm-0.06 mm greater than the height of the rotor 12; the inner diameter of the pore canal IV 13-1 of the rotor sleeve 13 is 0.02-0.08 mm larger than the outer diameter of the rotor 12.
The driven shaft 7 sequentially passes through the upper sealing disc 9 and the upper end disc 11 and is then inserted into the rotor 12, and the concrete implementation structure is that the upper sealing disc 9 is provided with a plurality of holes II for the driven shaft 7 to pass through in the circumferential direction, the annular rib plate I11-1 of the upper end disc 11 is also provided with a plurality of holes III 11-4 for the driven shaft 7 to pass through in the circumferential direction, and the holes II on the upper sealing disc 9 are consistent with the holes III 11-4 of the upper end disc 11 in number and correspond to the rotor 12 in number. The driven shaft 7 and the upper sealing disc 9 are sealed by mechanical sealing or packing sealing; the driven shaft 7 is positioned by a slide bearing 10 connected to an upper seal disk 9 and an upper end disk 11, and the end of the driven shaft 7 is square. The tail end of the driven shaft 7 is connected with the tail end of the blind hole 12-2 through a square structure, and the driven shaft 7 drives the rotor 12 to rotate.
The upper end of the driving shaft 1 passes through the oil tank 6, the lower end of the driving shaft 1 passes through the upper sealing disc 9, and the two ends of the driving shaft 1 are positioned through the upper rolling bearing 3-1 and the lower rolling bearing 3-2; the upper rolling bearing 3-1 is arranged on the oil tank 6 and is tightly pressed by the upper bearing gland 2; the lower rolling bearing 3-2 is arranged on the upper sealing disc 9, the bearing is tightly pressed by the lower bearing gland 5, and the lower bearing gland 5 and the upper sealing disc 9 are sealed by a rubber ring; the oil tank 6 and the driving shaft 1 are in fluid sealing by adopting mechanical sealing or packing sealing; the driving shaft 1 drives the driving wheel 4 to rotate through key connection, the upper end of the driven shaft 7 is connected with the driven wheel 8 through a key, and the driving wheel 4 drives the driven wheel 8 to drive the driven shaft 7 to rotate through driving; the rotational speed of the rotor 12 can be adjusted by changing the gear ratio between the driving wheel 4 and the driven wheel 8.
Referring to fig. 4, the upper end of the lower end plate 14 is provided with a plurality of pairs of concave-convex opposite liquid collecting tanks 14-4, the number of the pairs of liquid collecting tanks 14-4 is the same as that of the rotors 12, the positions of the pair of liquid collecting tanks 14-4 are the same as that of the pore canal I12-1 of the rotors 12, and the area of a rib plate between the pair of liquid collecting tanks 14-4 is larger than that of the pore canal I12-1 of one rotor; the lower end of the upper end plate 11 has the same structure as the upper end of the lower end plate 14.
Referring to fig. 3, an annular rib plate i 11-1 is disposed at the upper end of the upper end plate 11, the annular rib plate i 11-1 is located between the concave-convex opposite liquid collecting grooves 14-4 at the lower end of the upper end plate 11, an inner annular groove 11-3 of the upper end plate and an outer annular groove 11-2 of the upper end plate are formed inside and outside the annular rib plate i 11-1 respectively, high-pressure brine is connected with the outer annular groove 11-2 of the upper end plate through a connecting pipe F, pressure-released brine is connected with the inner annular groove 11-3 of the upper end plate through a connecting pipe G, and the annular rib plate i 11-1 is used for isolating high-pressure brine and low-pressure brine.
Referring to fig. 2, an annular rib plate ii 14-1 is disposed at the lower end of the lower end plate 14, the annular rib plate ii 14-1 is located between the liquid collecting grooves 14-4 with concave-convex opposite upper ends of the lower end plate 14, an inner annular groove 14-3 of the lower end plate and an outer annular groove 14-2 of the lower end plate are formed inside and outside the annular rib plate ii 14-1 respectively, pressurized seawater is connected with the outer annular groove 14-2 of the lower end plate through a connecting pipe E, low-pressure seawater is connected with the inner annular groove 14-3 of the lower end plate through a connecting pipe D, and the annular rib plate ii 14-1 is used for isolating high-pressure seawater and low-pressure seawater.
The liquid collecting groove 14-4 on the upper end disc 11 which is relatively positioned on the inner side is communicated with the upper end disc inner annular groove 11-3 on the upper end disc 11, and the liquid collecting groove 14-4 on the upper end disc 11 which is relatively positioned on the outer side is communicated with the upper end disc outer annular groove 11-2 on the upper end disc 11; the liquid collecting groove 14-4 on the lower end disc 14 which is relatively positioned on the inner side is communicated with the lower end disc inner annular groove 14-3 on the lower end disc 14, and the liquid collecting groove 14-4 on the lower end disc 14 which is relatively positioned on the outer side is communicated with the lower end disc outer annular groove 14-2 on the lower end disc 14; the outer sump 14-4 of the upper end plate 11 communicates with the outer sump 14-4 of the lower end plate 14, and the inner sump 14-4 of the upper end plate 11 communicates with the inner sump 14-4 of the lower end plate 14.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, but any simple modification and equivalent variation of the above embodiment according to the technical spirit of the present invention falls within the scope of the present invention.
Claims (4)
1. The large-throughput rotor type energy recovery device comprises a transmission mechanism, an oil tank (6), an upper sealing disc (9), an upper end disc (11), a rotor (12), a rotor sleeve (13), a lower end disc (14) and a lower sealing disc (15); the oil tank (6), the upper sealing disc (9), the upper end disc (11), the rotor sleeve (13), the lower end disc (14) and the lower sealing disc (15) are sequentially and coaxially connected and tightly pressed and sealed, and the transmission mechanism is arranged in the oil tank (6) and is in driving connection with the rotor (12); the method is characterized in that:
each rotor (12) is provided with a plurality of pore canals I (12-1) in the circumferential direction, and a section of blind hole (12-2) is formed in the center of each rotor (12); a plurality of through holes IV (13-1) which run along the axis are uniformly distributed in the circumferential direction of the rotor sleeve (13), and a corresponding number of rotors (12) are arranged in the holes IV (13-1); the cross section of the pore canal I (12-1) of the rotor (12) in the circumferential direction is circular or fan-shaped; the front end of the blind hole (12-2) on the rotor (12) is a round hole, and the tail end of the blind hole (12-2) is square; the tail end of the driven shaft (7) is square, and the tail end of the driven shaft (7) is connected with the tail end of the blind hole (12-2); the height of the rotor sleeve (13) is 0.02 mm-0.06 mm greater than the height of the rotor (12); the inner diameter of the pore canal IV (13-1) of the rotor sleeve (13) is 0.02-0.08 mm larger than the outer diameter of the rotor (12);
the upper end of the upper end disc (11) is provided with an annular rib plate I (11-1), the annular rib plate I (11-1) is positioned between concave-convex opposite liquid collecting grooves (14-4) at the lower end of the upper end disc (11), an inner annular groove (11-3) of the upper end disc and an outer annular groove (11-2) of the upper end disc are respectively formed inside and outside the annular rib plate I (11-1), high-pressure brine is connected with the outer annular groove (11-2) of the upper end disc through a connecting pipe F, and pressure-relief brine is connected with the inner annular groove (11-3) of the upper end disc through a connecting pipe G;
the lower end of the lower end disc (14) is provided with an annular rib plate II (14-1), the annular rib plate II (14-1) is positioned between the concave-convex opposite liquid collecting grooves (14-4) at the upper end of the lower end disc (14), an inner annular groove (14-3) of the lower end disc and an outer annular groove (14-2) of the lower end disc are respectively formed inside and outside the annular rib plate II (14-1), pressurized seawater is connected with the outer annular groove (14-2) of the lower end disc through a connecting pipe E, and low-pressure seawater is connected with the inner annular groove (14-3) of the lower end disc through a connecting pipe D;
the structure of the lower end of the upper end disc (11) is the same as that of the upper end of the lower end disc (14), a plurality of pairs of concave-convex opposite liquid collecting grooves (14-4) are formed, the logarithm of each liquid collecting groove (14-4) is the same as that of the rotor (12), the positions of the liquid collecting grooves (14-4) are the same as those of the pore canal I (12-1) of the rotor (12), and the area of a rib plate between the pair of liquid collecting grooves (14-4) is larger than the area of the pore canal I (12-1) of one rotor;
the liquid collecting groove (14-4) on the upper end disc (11) which is relatively positioned on the inner side is communicated with the annular groove (11-3) on the inner side of the upper end disc, and the liquid collecting groove (14-4) on the upper end disc (11) which is relatively positioned on the outer side is communicated with the annular groove (11-2) on the outer side of the upper end disc; the liquid collecting groove (14-4) on the inner side of the lower end disc (14) is communicated with the annular groove (14-3) on the inner side of the lower end disc, and the liquid collecting groove (14-4) on the outer side of the lower end disc (14) is communicated with the annular groove (14-2) on the outer side of the lower end disc; the outer side liquid collecting groove (14-4) of the upper end plate (11) is communicated with the outer side liquid collecting groove (14-4) of the lower end plate (14), and the inner side liquid collecting groove (14-4) of the upper end plate (11) is communicated with the inner side liquid collecting groove (14-4) of the lower end plate (14).
2. A high throughput rotor energy recovery apparatus as defined in claim 1, wherein: the transmission mechanism comprises a driving shaft (1), an upper bearing gland (2), an upper rolling bearing (3-1), a lower rolling bearing (3-2), a driving wheel (4), a lower bearing gland (5), a driven shaft (7), a driven wheel (8) and a sliding bearing (10); the driven shaft (7) sequentially passes through the upper sealing disc (9) and the upper end disc (11) and then is inserted into the rotor (12), and the space between the driven shaft (7) and the upper sealing disc (9) is sealed; the driven shaft (7) is positioned through a sliding bearing (10) connected with the upper sealing disc (9) and the upper end disc (11); the upper end of the driven shaft (7) is fixedly connected with a driven wheel (8); the tail end of the driven shaft (7) is fixedly connected in a blind hole (12-2) of the rotor (12); the upper and lower ends of the driving shaft (1) respectively pass through the middle parts of the oil tank (6) and the upper sealing disc (9) and are positioned by an upper rolling bearing (3-1) and a lower rolling bearing (3-2); the driving shaft (1) is fixedly connected with driving wheels (4) meshed with all driven wheels (8).
3. A high throughput rotor energy recovery apparatus as defined in claim 2, wherein: the upper sealing disc (9) is provided with a plurality of pore canals II for the driven shaft (7) to pass through in the circumferential direction, the annular rib plate I of the upper end disc (11) is also provided with a plurality of pore canals III (11-4) for the driven shaft (7) to pass through in the circumferential direction, and the pore canals II on the upper sealing disc (9) are consistent with the pore canals III (11-4) of the upper end disc (11) in number and correspond to the rotor (12) in number.
4. A high throughput rotor energy recovery apparatus as claimed in claim 2 or claim 3, wherein: the driven shaft (7) and the upper sealing disc (9) are sealed through mechanical sealing or packing sealing; the upper rolling bearing (3-1) is arranged on the oil tank (6) and is tightly pressed by the upper bearing gland (2); the lower rolling bearing (3-2) is arranged on the upper sealing disc (9) and is tightly pressed by the lower bearing gland (5), and the lower bearing gland (5) and the upper sealing disc (9) are sealed by a rubber ring; the oil tank (6) and the driving shaft (1) are in fluid sealing by adopting mechanical sealing or packing sealing; the driving shaft (1) drives the driving wheel (4) to rotate through key connection, and the upper end of the driven shaft (7) is connected with the driven wheel (8) through a key.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811501596.8A CN109550399B (en) | 2018-12-10 | 2018-12-10 | High-throughput rotor type energy recovery device |
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| CN201811501596.8A CN109550399B (en) | 2018-12-10 | 2018-12-10 | High-throughput rotor type energy recovery device |
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| CN109550399B true CN109550399B (en) | 2023-09-19 |
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| 自驱型旋转式压力能交换器性能模拟与结构优化;陈志华;《化工机械》;第42卷(第5期);第669-675页 * |
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