CN110486347B - Combined hydraulic control valve - Google Patents
Combined hydraulic control valve Download PDFInfo
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- CN110486347B CN110486347B CN201910775432.2A CN201910775432A CN110486347B CN 110486347 B CN110486347 B CN 110486347B CN 201910775432 A CN201910775432 A CN 201910775432A CN 110486347 B CN110486347 B CN 110486347B
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- piston
- reversing
- control valve
- rod
- guide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
Abstract
The invention discloses a combined hydraulic control valve, wherein a first hydraulic cylinder is provided with a first hydraulic hole and a first hydraulic piston, a second hydraulic cylinder is provided with a second hydraulic hole and a second hydraulic piston, a hydraulic piston rod is connected between the first hydraulic piston and the second hydraulic piston, and the hydraulic piston rod is provided with a first impact rod and a second impact rod; the first hydraulic cylinder and the second hydraulic cylinder are both connected with a reversing control valve, and the reversing control valve is connected with a guide control valve; a reversing piston rod is arranged in the reversing control valve, and is provided with a first reversing piston, a second reversing piston, a third reversing piston and a fourth reversing piston; a guide piston rod is arranged in the guide control valve, the guide piston rod is provided with a first guide piston and a second guide piston, a first guide rod is arranged on the left side of the first guide piston, and a second guide rod is arranged on the right side of the second guide piston. The invention combines two directional control valves, adopts water power as energy for driving the directional control valves, and has the advantages of cleanness, environmental protection, low cost, compact structure and the like.
Description
Technical Field
The invention relates to a control valve, in particular to a combined hydraulic control valve.
Background
The direction control valve utilizes the relative movement of the valve core relative to the valve body to reach a specific working position, so that different liquid flow pipelines are switched on or off, thereby changing the flowing direction of liquid and changing the moving direction of an actuating element. In the existing hydraulic system, the operation of a directional control valve mostly needs an external power source to provide driving energy, so that the whole hydraulic system tends to be dispersed and cannot effectively perform integral feedback control. Because external equipment is needed, the seawater desalination system occupies a large volume, is difficult to operate and maintain, has high cost and is not suitable for a small seawater desalination system.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a combined hydraulic control valve for a seawater desalination device, which reasonably and effectively combines two directional control valves in a small seawater desalination system, adopts hydraulic power as energy for driving the directional control valves, has the advantages of cleanness, environmental protection, low cost, compact structure and the like, and can better meet the requirements of sustainable development and social production.
The purpose of the invention is realized by the following technical scheme.
The combined hydraulic control valve comprises a first hydraulic cylinder and a second hydraulic cylinder which are horizontally and symmetrically arranged from left to right, wherein a first liquid flow hole is formed in the right end of the bottom of the first hydraulic cylinder, a second liquid flow hole is formed in the left end of the bottom of the second hydraulic cylinder, a first hydraulic piston and a second hydraulic piston are respectively arranged in the first hydraulic cylinder and the second hydraulic cylinder, a hydraulic piston rod is connected between the first hydraulic piston and the second hydraulic piston, and a first impact rod and a second impact rod which are symmetrically arranged from left to right are arranged at the bottom of the hydraulic piston rod; the first hydraulic cylinder and the second hydraulic cylinder are both connected with a reversing control valve, and the reversing control valve is connected with a guide control valve arranged between the first impact rod and the second impact rod;
a reversing piston rod is arranged in the reversing control valve, and a first reversing piston, a second reversing piston, a third reversing piston and a fourth reversing piston are sequentially arranged on the reversing piston rod from left to right; a third discharge port, a third liquid flow hole and a fourth liquid flow hole are sequentially arranged at the top of the reversing control valve from left to right, and a fifth liquid flow hole, a high-pressure strong brine inlet, a fourth discharge port and a sixth liquid flow hole are sequentially arranged at the bottom of the reversing control valve from left to right;
a guide piston rod is arranged in the guide control valve, a first guide piston and a second guide piston are respectively arranged at the left end and the right end of the guide piston rod, a first guide rod colliding with a first impact rod is arranged on the left side surface of the first guide piston, and a second guide rod colliding with a second impact rod is arranged on the right side surface of the second guide piston; a seventh liquid flow hole and an eighth liquid flow hole are respectively formed in the left end and the right end of the top of the guide control valve, and a second discharge port, a raw seawater inlet and a first discharge port are sequentially formed in the bottom of the guide control valve from left to right;
and a third liquid flow channel is connected between the first liquid flow hole and the third liquid flow hole, a fourth liquid flow channel is connected between the second liquid flow hole and the fourth liquid flow hole, a first liquid flow channel is connected between the fifth liquid flow hole and the seventh liquid flow hole, and a second liquid flow channel is connected between the sixth liquid flow hole and the eighth liquid flow hole.
The left side of the first hydraulic cylinder is provided with a seawater inlet A and a seawater outlet A, and the right side of the second hydraulic cylinder is provided with a seawater inlet B and a seawater outlet B.
The first hydraulic piston is vertically arranged inside the first hydraulic cylinder, the second hydraulic piston is vertically arranged inside the second hydraulic cylinder, and the hydraulic piston rod drives the first hydraulic piston, the second hydraulic piston, the first impact rod and the second impact rod to synchronously move left and right along the horizontal direction.
The first impact rod is arranged on the right side of the outside of the first hydraulic cylinder, the second impact rod is arranged on the left side of the outside of the second hydraulic cylinder, and the first impact rod and the second impact rod are perpendicularly arranged on the lower surface of the hydraulic piston rod.
The reversing control valve is characterized in that the reversing piston rod is horizontally arranged in the reversing control valve, the first reversing piston, the second reversing piston, the third reversing piston and the fourth reversing piston are all vertically arranged with the reversing piston rod, and the reversing piston rod drives the first reversing piston, the second reversing piston, the third reversing piston and the fourth reversing piston to synchronously move left and right along the horizontal direction.
The direction piston rod level sets up inside the direction control valve, first direction piston and second direction piston all set up with the direction piston rod is perpendicular, the direction control valve left and right sides face all is provided with the through-hole, the equal level setting of first guide bar and second guide bar, and all pass the through-hole of its place side and extend to the direction control valve outside, the direction piston rod drives first direction piston, second guide piston, first guide bar, second guide bar and moves about along the horizontal direction is synchronous, realizes the collision of first guide bar and first impact pole or the collision of second guide bar and second impact pole.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
(1) the invention reasonably and effectively combines the reversing control valve and the guide control valve, adopts water power as energy for driving the direction control valve, has the advantages of cleanness, environmental protection, low cost, compact structure and the like, and can better give consideration to the requirements of sustainable development and social production.
(2) The switching of the left working condition or the right working condition of the reversing control valve in the invention is realized by utilizing the flow direction of raw material seawater.
(3) The switching between the left working condition and the right working condition of the guide control valve is realized by mechanical collision, the feedback is purely mechanical, no additional equipment is arranged, and the movement of the guide control valve is realized by mechanical collision.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a workflow block diagram of the present invention;
FIG. 3 is a schematic view of the right hand operating condition of the present invention;
FIG. 4 is a schematic view of the left operating condition of the present invention.
Reference numerals:
1, guiding a control valve; 101 a first guide bar; 102 a first pilot piston; 103 guiding the piston rod; 104 a second pilot piston; 105 a second guide bar; 106 a seventh flowbore; 107 eighth flowbore; 108 a second discharge port; 109, a raw seawater inlet; 110 a first discharge port;
2, a reversing control valve; 201 a first reversing piston; 202 a second reversing piston; 203 a third reversing piston; 204 a fourth reversing piston; 205 reversing the piston rod; 206 a third discharge port; 207 a third flow aperture; 208 a fourth flow aperture; 209 a fifth flow orifice; 210 high-pressure strong brine inlet; 211 a fourth discharge port; 212 sixth flowbore;
3 a first hydraulic cylinder; 301 a first hydraulic piston; 302 seawater inlet a; 303, a seawater outlet A; 304 a first flow aperture;
4 a second hydraulic cylinder; 401 a second hydraulic piston; 402 seawater inlet B; 403 seawater outlet B; 404 a second orifice;
5 a hydraulic piston rod; 6 a first flow channel; 7 a second flow path; 8 a third flow channel; 9 a fourth flow channel; 10 a first striker bar; 11 second striker bar.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the combined hydraulic control valve of the present invention includes a first hydraulic cylinder 3 and a second hydraulic cylinder 4 which are horizontally and symmetrically arranged, a seawater inlet a302 and a seawater outlet a303 are arranged on the left side of the first hydraulic cylinder 3, and a first fluid hole 304 is arranged on the right end of the bottom of the first hydraulic cylinder 3; the right side of the second hydraulic cylinder 4 is provided with a seawater inlet B402 and a seawater outlet B403, and the left end of the bottom of the second hydraulic cylinder 4 is provided with a second hydraulic hole 404. The hydraulic cylinder is characterized in that a first hydraulic piston 301 and a second hydraulic piston 401 are respectively arranged inside the first hydraulic cylinder 3 and the second hydraulic cylinder 4, a hydraulic piston rod 5 is connected between the first hydraulic piston 301 and the second hydraulic piston 401, and a first impact rod 10 and a second impact rod 11 which are bilaterally symmetrical are arranged at the bottom of the hydraulic piston rod 5. The first hydraulic piston 301 is vertically disposed inside the first hydraulic cylinder 3, and the second hydraulic piston 401 is vertically disposed inside the second hydraulic cylinder 4. First striker rod 10 sets up in the outside right side of first pneumatic cylinder 3, second striker rod 11 sets up in the outside left side of second pneumatic cylinder 4, first striker rod 10 and second striker rod 11 all set up perpendicularly in hydraulic piston rod 5 lower surface. The hydraulic piston rod 5 drives the first hydraulic piston 301, the second hydraulic piston 401, the first impact rod 10 and the second impact rod 11 to synchronously move left and right along the horizontal direction.
The first hydraulic cylinder 3 and the second hydraulic cylinder 4 are both connected with the reversing control valve 2. A reversing piston rod 205 is arranged in the reversing control valve 2, and a first reversing piston 201, a second reversing piston 202, a third reversing piston 203 and a fourth reversing piston 204 are sequentially arranged on the reversing piston rod 205 from left to right. The reversing piston rod 205 is horizontally arranged in the reversing control valve 2, the first reversing piston 201, the second reversing piston 202, the third reversing piston 203 and the fourth reversing piston 204 are all vertically arranged with the reversing piston rod 205, and the reversing piston rod 205 drives the first reversing piston 201, the second reversing piston 202, the third reversing piston 203 and the fourth reversing piston 204 to synchronously move left and right along the horizontal direction.
The directional control valve 2 is connected to a pilot control valve 1 disposed between a first striker rod 10 and a second striker rod 11. The guide control valve 1 is internally provided with a guide piston rod 103, the left end and the right end of the guide piston rod 103 are respectively provided with a first guide piston 102 and a second guide piston 104, the left side surface of the first guide piston 102 is provided with a first guide rod 101 which collides with the first striking rod 10, and the right side surface of the second guide piston 104 is provided with a second guide rod 105 which collides with the second striking rod 11. The guide piston rod 103 is horizontally arranged inside the guide control valve 1, the first guide piston 102 and the second guide piston 104 are vertically arranged with the guide piston rod 103, through holes are formed in the left side surface and the right side surface of the guide control valve 1, the first guide rod 101 and the second guide rod 105 are horizontally arranged, the through holes penetrating through the left side surface and the right side surface of the guide control valve extend to the outside of the guide control valve 2, the guide piston rod 103 drives the first guide piston 102, the second guide piston 104, the first guide rod 101 and the second guide rod 105 to move left and right in a synchronous mode along the horizontal direction, and collision between the first guide rod 101 and the first impact rod 10 or collision between the second guide rod 105 and the second impact rod 11 are achieved.
The top of the reversing control valve 2 is sequentially provided with a third discharge port 206, a third liquid flow hole 207 and a fourth liquid flow hole 208 from left to right, and the bottom of the reversing control valve 2 is sequentially provided with a fifth liquid flow hole 209, a high-pressure concentrated brine inlet 210, a fourth discharge port 211 and a sixth liquid flow hole 212 from left to right. The left end and the right end of the top of the guide control valve 1 are respectively provided with a seventh liquid flow hole 106 and an eighth liquid flow hole 107, and the bottom of the guide control valve 1 is sequentially provided with a second discharge port 108, a raw seawater inlet 109 and a first discharge port 110 from left to right. A third flow channel 8 is connected between the first flow hole 304 and the third flow hole 207, a fourth flow channel 9 is connected between the second flow hole 404 and the fourth flow hole 208, a first flow channel 6 is connected between the fifth flow hole 209 and the seventh flow hole 106, and a second flow channel 7 is connected between the sixth flow hole 212 and the eighth flow hole 107.
When the invention works, two working conditions, namely a right working condition and a left working condition, occur, and the two working conditions work alternately to complete the working process, as shown in fig. 2.
(1) The right working condition is as follows: as shown in fig. 3, the raw seawater enters the first hydraulic cylinder 3 from the seawater inlet a302, and pushes the hydraulic piston rod 5 to move right, so as to drive the first striker 10 to move right to collide with the first guide rod 101, so that the guide control valve 1 works right. Raw seawater enters the guide control valve 1 through the raw seawater inlet 109, reaches the right side in the reversing control valve 2 through the second flow channel 7 connected with the eighth flow hole 107, pushes the reversing piston rod 205 to move left, the reversing control valve 2 works in the left position, and high-pressure concentrated brine entering through the high-pressure concentrated brine inlet 210 sequentially enters the right side in the first hydraulic cylinder 3 through the third flow hole 207, the third flow channel 8 and the first flow hole 304. Meanwhile, the raw material seawater enters the right side inside the second hydraulic cylinder 4 from the seawater inlet B402, and at the moment, the high-pressure strong brine and the raw material seawater on the right side inside the second hydraulic cylinder 4 jointly push the raw material seawater on the left side inside the first hydraulic cylinder 3, so that pressurization is realized.
The concentrated brine on the left side in the second hydraulic cylinder 4 sequentially flows back to the reversing control valve 2 through the second liquid flow hole 404, the fourth liquid flow channel 9 and the fourth liquid flow hole 208, and is discharged to the concentrated brine pond through the fourth discharge port 211. The seawater at the leftmost side in the reversing control valve 2 sequentially passes through the fifth liquid flow hole 209, the first liquid flow channel 6 and the seventh liquid flow hole 106 to the inside of the guide control valve 1, and is discharged to the seawater pool from the second discharge port 108 at the leftmost side of the guide control valve 1.
(2) Left-position working condition: as shown in fig. 4, the raw seawater enters the second hydraulic cylinder 4 from the seawater inlet B402, and pushes the hydraulic piston rod 5 to move left, so as to drive the second striker rod 11 to collide with the second guide rod 105, so that the pilot control valve 1 operates in the left position. Raw seawater enters the guide control valve 1 through the raw seawater inlet 109, reaches the left side inside the reversing control valve 2 through the first liquid flow channel 6 connected with the seventh liquid flow hole 106, pushes the reversing piston rod 205 to move to the right, the reversing control valve 2 works at the right position, and high-pressure concentrated brine entering through the high-pressure concentrated brine inlet 210 sequentially passes through the fourth liquid flow hole 208, the fourth liquid flow channel 9 and the second liquid flow hole 404 to enter the left side inside the second hydraulic cylinder 4. Meanwhile, the raw material seawater enters the left side inside the first hydraulic cylinder 3 from the seawater inlet A302, and at the moment, the high-pressure strong brine and the raw material seawater on the left side inside the first hydraulic cylinder 3 jointly push the raw material seawater on the right side inside the second hydraulic cylinder 4, so that pressurization is realized.
The strong brine on the right side in the first hydraulic cylinder 3 sequentially flows back to the reversing control valve 2 through the first liquid flow hole 304, the third liquid flow channel 8 and the third liquid flow hole 207, and is discharged to a strong brine pond through the third discharge port 206. The seawater at the rightmost side in the reversing control valve 2 sequentially passes through the sixth liquid flow hole 212, the second liquid flow channel 7 and the eighth liquid flow hole 107 to flow into the guiding control valve 1, and is discharged to the seawater pool from the first discharge port 110 at the rightmost side of the guiding control valve 1.
While the present invention has been described in terms of its functions and operations with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise functions and operations described above, and that the above-described embodiments are illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope or spirit of the invention as defined by the appended claims.
Claims (1)
1. The combined hydraulic control valve is characterized by comprising a first hydraulic cylinder (3) and a second hydraulic cylinder (4) which are arranged in a left-right horizontal symmetry mode, wherein a first liquid flow hole (304) is formed in the right end of the bottom of the first hydraulic cylinder (3), a second liquid flow hole (404) is formed in the left end of the bottom of the second hydraulic cylinder (4), a first hydraulic piston (301) and a second hydraulic piston (401) are respectively arranged in the first hydraulic cylinder (3) and the second hydraulic cylinder (4), a hydraulic piston rod (5) is connected between the first hydraulic piston (301) and the second hydraulic piston (401), and a first impact rod (10) and a second impact rod (11) which are arranged in a left-right symmetry mode are arranged at the bottom of the hydraulic piston rod (5); the first hydraulic cylinder (3) and the second hydraulic cylinder (4) are both connected with a reversing control valve (2), and the reversing control valve (2) is connected with a guide control valve (1) arranged between a first impact rod (10) and a second impact rod (11);
a reversing piston rod (205) is arranged in the reversing control valve (2), and a first reversing piston (201), a second reversing piston (202), a third reversing piston (203) and a fourth reversing piston (204) are sequentially arranged on the reversing piston rod (205) from left to right; a third discharge port (206), a third liquid flow hole (207) and a fourth liquid flow hole (208) are sequentially arranged at the top of the reversing control valve (2) from left to right, and a fifth liquid flow hole (209), a high-pressure concentrated brine inlet (210), a fourth discharge port (211) and a sixth liquid flow hole (212) are sequentially arranged at the bottom of the reversing control valve (2) from left to right;
a guide piston rod (103) is arranged in the guide control valve (1), a first guide piston (102) and a second guide piston (104) are respectively arranged at the left end and the right end of the guide piston rod (103), a first guide rod (101) which collides with a first impact rod (10) is arranged on the left side surface of the first guide piston (102), and a second guide rod (105) which collides with a second impact rod (11) is arranged on the right side surface of the second guide piston (104); a seventh liquid flow hole (106) and an eighth liquid flow hole (107) are respectively formed in the left end and the right end of the top of the guide control valve (1), and a second discharge port (108), a raw seawater inlet (109) and a first discharge port (110) are sequentially formed in the bottom of the guide control valve (1) from left to right;
a third liquid flow channel (8) is connected between the first liquid flow hole (304) and the third liquid flow hole (207), a fourth liquid flow channel (9) is connected between the second liquid flow hole (404) and the fourth liquid flow hole (208), a first liquid flow channel (6) is connected between the fifth liquid flow hole (209) and the seventh liquid flow hole (106), and a second liquid flow channel (7) is connected between the sixth liquid flow hole (212) and the eighth liquid flow hole (107);
the seawater inlet A (302) and the seawater outlet A (303) are arranged on the left side of the first hydraulic cylinder (3), and the seawater inlet B (402) and the seawater outlet B (403) are arranged on the right side of the second hydraulic cylinder (4);
the first hydraulic piston (301) is vertically arranged inside the first hydraulic cylinder (3), the second hydraulic piston (401) is vertically arranged inside the second hydraulic cylinder (4), and the hydraulic piston rod (5) drives the first hydraulic piston (301), the second hydraulic piston (401), the first impact rod (10) and the second impact rod (11) to synchronously move left and right along the horizontal direction;
the first impact rod (10) is arranged on the right side of the outer portion of the first hydraulic cylinder (3), the second impact rod (11) is arranged on the left side of the outer portion of the second hydraulic cylinder (4), and the first impact rod (10) and the second impact rod (11) are both vertically arranged on the lower surface of the hydraulic piston rod (5);
the reversing control valve comprises a reversing control valve 2, a reversing piston rod (205), a first reversing piston (201), a second reversing piston (202), a third reversing piston (203) and a fourth reversing piston (204), wherein the reversing piston rod (205) is horizontally arranged in the reversing control valve 2, the first reversing piston (201), the second reversing piston (202), the third reversing piston (203) and the fourth reversing piston (204) are all vertically arranged with the reversing piston rod (205), and the reversing piston rod (205) drives the first reversing piston (201), the second reversing piston (202), the third reversing piston (203) and the fourth reversing piston (204) to synchronously move;
wherein, direction piston rod (103) level sets up inside direction control valve (1), first direction piston (102) and second direction piston (104) all set up with direction piston rod (103) is perpendicular, direction control valve (1) left and right sides face all is provided with the through-hole, first guide bar (101) and the equal level setting of second guide bar (105), and all pass the through-hole of its place side and extend to direction control valve (1) outside, direction piston rod (103) drive first direction piston (102), second direction piston (104), first guide bar (101), second guide bar (105) and move about along the horizontal direction is synchronous, realize the collision of first guide bar (101) and first striking pole (10) or the collision of second guide bar (105) and second striking pole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910775432.2A CN110486347B (en) | 2019-08-21 | 2019-08-21 | Combined hydraulic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910775432.2A CN110486347B (en) | 2019-08-21 | 2019-08-21 | Combined hydraulic control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110486347A CN110486347A (en) | 2019-11-22 |
| CN110486347B true CN110486347B (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910775432.2A Active CN110486347B (en) | 2019-08-21 | 2019-08-21 | Combined hydraulic control valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN110486347B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115400594A (en) * | 2022-09-22 | 2022-11-29 | 自然资源部天津海水淡化与综合利用研究所 | Energy recovery system for seawater desalination engineering and working method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2219122B1 (en) * | 2001-07-27 | 2005-09-16 | Bolsaplast, S.A. | PUMP FOR MARINE WATER DESALINATION SYSTEMS BY REVERSE OSMOSIS. |
| WO2006067241A1 (en) * | 2004-12-21 | 2006-06-29 | Bolsaplast, S.A. | Seawater desalination system using reverse osmosis |
| CN101581328A (en) * | 2009-05-31 | 2009-11-18 | 王世昌 | United piston self-pressurization energy recovery pump used for reverse osmosis seawater desalination system |
| CN102588240B (en) * | 2012-02-20 | 2014-10-01 | 国家海洋局天津海水淡化与综合利用研究所 | Self-pressurization energy recovery high-pressure pump for reverse osmosis sea water desalinization |
| CN103979643A (en) * | 2014-05-15 | 2014-08-13 | 国家海洋局天津海水淡化与综合利用研究所 | Reverse osmosis seawater desalination system using self-pressurization energy recycling high-pressure pump |
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