CN201305484Y - Switching valve group driven by hydraulic pressure - Google Patents
Switching valve group driven by hydraulic pressure Download PDFInfo
- Publication number
- CN201305484Y CN201305484Y CNU2008201673333U CN200820167333U CN201305484Y CN 201305484 Y CN201305484 Y CN 201305484Y CN U2008201673333 U CNU2008201673333 U CN U2008201673333U CN 200820167333 U CN200820167333 U CN 200820167333U CN 201305484 Y CN201305484 Y CN 201305484Y
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Abstract
The utility model provides a switching valve group driven by hydraulic pressure. The switching valve group comprises an electromagnetic directional valve, a direction control valve driven by hydraulic pressure, and four hydraulic pressure drive valves, which are combined together. Six water ports communicated with the outside are formed on the valve group, namely a pressure exchange pipe water port, a high pressure concentrated water inlet, a concentrated water outlet, a high pressure sea-water inlet and a low pressure sea-water inlet. The valve driven by hydraulic pressure provided by the utility model has high through flow capability, and can save energy and protect environment, as well as conduct smooth switching without impact. The utility model has the advantages of compact structure, convenient operation, small occupied area, sensitive action, high pollution resistance, long service life, convenient maintenance and inspection, convenient and rapid component increase and decrease when altering a system, flexile configuration and reliable operation.
Description
Technical field
The utility model relates to a kind of switching valve group of hydraulic drives, is applicable to that the high-low pressure current of positive displacement formula energy recycle device in the reverse osmosis seawater desalting switch.
Background technology
The reverse osmosis membrane sea water desaltination is generally adopted in countries in the world, and China was existing in recent years to develop on a large scale very much, also will become the mainstream technology of China's sea water desaltination industry from now on.Energy recycle device is one of key equipment of reverse osmosis seawater desalination system, and is most important to significantly reducing system's operation energy consumption and making the water cost.According to principle of work, the fluid energy recovery technology mainly is divided into hydraulic turbine formula and positive displacement formula two big classes.The former is representative with the hydraulic turbine (Turbo Charger) of U.S. PEI company, needs usually through " pressure energy--mechanical energy (shaft work)--pressure energy " two step conversion process, and energy recovery efficiency has only 30%～75%.The latter is representative with DWEER (WorkExchange Energy Recovery), PX (Pressure Exchanger) then, only need through " pressure energy--pressure energy " step conversion process, energy recovery efficiency becomes the emphasis of domestic and international research and extension up to more than 94%.
In seawater or the brackish water desalination process, its high-pressure thick water pressure can realize the overbottom pressure energy recovery by adopting positive displacement formula energy recycle device.Its process is one, and liquid collecting body flow is big, pressure reduction is high, needs constantly back and forth to switch the process of liquid flow direction.Therefore, the high-low pressure current switching valve that this energy recycle device adopts is a gordian technique, can't use conventional magnetic valve and motorized valve.
(the employing LinX valve of Work Exchange Energy Recovery switches the high-low pressure current to DWEER, but the LinX valve adopts oil pressure actuated, and is bulky, maintenance cost height, and easy oil leakage contaminate environment; PX (Pressure Exchanger) utilizes water flow impact pressure that the automatic rotation of ceramic rotor is combined with the dish flow and realizes that the high-low pressure current switch, but be subjected to the capacity limitation of the rotating speed and the rotor channel of rotor, the treatment capacity of separate unit PX can not be too big, can not be too little, adaptability is not strong, and rotating speed is stable inadequately.
Summary of the invention
The switching valve group that the utility model technical problem at first to be solved is a kind of hydraulic drives is applicable to that the high-low pressure current of positive displacement formula energy recycle device in the reverse osmosis seawater desalting switch.For this reason, the utility model by the following technical solutions: it is by a solenoid operated directional valve [V
6], the direction control valve [V of a hydraulic drives
5], four hydraulic drives valve [V
1], [V
2], [V
3], [V
4] combine, described valve group have six with extraneous outlet pass, be respectively pressure-exchange pipe outlet pass [W
1], [W
3], high-pressure thick water water-in [W
2], concentrated water discharge mouth [W
4], high pressure sea water water-in [W
5], low pressure seawater water-in [W
6];
Direction control valve [V
5] have a water-in [P
1], water-in [P
1] by water pipe [8] and high pressure sea water water-in [W
5] link to each other solenoid operated directional valve [V
6] water-in [P
2] by water pipe [13] and low pressure seawater water-in [W
6] be communicated with;
The hydraulic drives valve has water-in, pilot control opening and water outlet respectively, the water-in of described hydraulic drives valve and the connection of water outlet and close by by the control of the positive and negative pressure of pilot control opening and water-in;
Hydraulic drives valve [V
1] water-in [A
1] and hydraulic drives valve [V
4] water-in [A
4] by water pipe [2] connect and with high-pressure thick water water-in [W
2] be communicated with;
Direction control valve [V
5] have four outlet pass [N
1], [N
2], [N
3], [N
4], outlet pass [N
1] by water pipe [4] and hydraulic drives valve [V
1] pilot control opening [C
1] be communicated with outlet pass [N
2] by water pipe [5] and hydraulic drives valve [V
2] pilot control opening [C
2] be communicated with outlet pass [N
3] by water pipe [6] and hydraulic drives valve [V
3] pilot control opening [C
3] be communicated with outlet pass [N
4] by water pipe [7] and hydraulic drives valve [V
4] pilot control opening [C
4] be communicated with;
Solenoid operated directional valve [V
6] have two outlet pass [N
5], [N
6], direction control valve [V
5] also have two pilot control opening [K
1], [K
2], direction control valve [V
5] pilot control opening [K
1] by water pipe [11] and solenoid operated directional valve [V
6] outlet pass [N
5] be communicated with direction control valve [V
5] pilot control opening [K
2] by water pipe [12] and solenoid operated directional valve [V
6] outlet pass [N
6] be communicated with;
Hydraulic drives valve [V
3] water-in [A
3] and hydraulic drives valve [V
1] water outlet [B
1] by water pipe [1] connect and with pressure-exchange pipe outlet pass [W
1] be communicated with; Hydraulic drives valve [V
2] water-in [A
2] and hydraulic drives valve [V
4] water outlet [B
4] by water pipe [3] connect and with pressure-exchange pipe outlet pass [W
3] be communicated with;
Direction control valve [V
5] also have two water port [O
1], [O
2], solenoid operated directional valve [V
6] also have two water port [O
3], [O
4], hydraulic drives valve [V
2] water outlet [B
2], hydraulic drives valve [V
3] water outlet [B
3], water port [O
1], [O
2], [O
3], [O
4] by water pipe [9] link together and with concentrated water discharge mouth [W
4] be communicated with;
Solenoid operated directional valve [V
6] in be provided with on-off mechanism, described on-off mechanism, water port [O
3] and [O
4], outlet pass [N
5] and [N
6], water-in [P
2] cooperation satisfy solenoid operated directional valve [V
6] two kinds of working ordeies can be provided: water-in [P
2] and outlet pass [N
5] connect and water port [O
4] and outlet pass [N
6] connect water-in [P
2] and outlet pass [N
6] connect and water port [O
3] and outlet pass [N
5] connect;
Direction control valve [V
5] in be provided with on-off mechanism, described on-off mechanism, water port [O
1] and [O
2], outlet pass [N
1], [N
2], [N
3], [N
4], water-in [P
1] cooperation satisfy direction control valve [V
5] five kinds of working ordeies can be provided:
1). water-in [P
1] and outlet pass [N
1], [N
2] connect and water port [O
2] and outlet pass [N
3], [N
4] connect,
2). water-in [P
1] and outlet pass [N
1], [N
2], [N
3] connect and water port [O
2] and outlet pass [N
4] connect,
3). water-in [P
1] and outlet pass [N
2], [N
3] connect and water port [O
1] and outlet pass [N
1] connect, water port [O
2] and outlet pass [N
4] connect,
4). water-in [P
1] and outlet pass [N
2], [N
3], [N
4] connect and water port [O
1] and outlet pass [N
1] connect,
5). water-in [P
1] and outlet pass [N
3], [N
4] connect and water port [O
1] and outlet pass [N
1], [N
2] connect.
Because adopt the technical solution of the utility model, the beneficial effects of the utility model are:
1. the utility model is by direction control valve [V
5] utilize the high pressure sea water of reverse osmosis seawater desalination system, control the pressure of 4 hydraulic drives valve pilot control opening, open and close 4 hydraulic drives valve [V
1], [V
2], [V
3], [V
4], the through-current capability of hydraulic drives valve is big, and spool is active in one's movements, and is specially adapted to big flow occasion.
2. direction control valve [the V of hydraulic drives of the present utility model
5] valve rod [30] by solenoid operated directional valve [V
6] the pressure water handled in the control reverse osmosis seawater desalination system of electro-magnet promote, so thrust can be very big, handles also very convenient.
3. the utility model adopts low pressure seawater, high pressure sea water in the reverse osmosis seawater desalination system to come driving direction control valve [V respectively
5], hydraulic drives valve [V
1], [V
2], [V
3], [V
4], so not only energy-conserving and environment-protective, thus and can steadily there be the commutation of impact.
4. the utility model compact construction, floor space is little, is active in one's movements, antipollution power is strong, long service life, Maintenance and Repair are convenient, and the increase and decrease element is rapidly convenient during the system change, flexible configuration, reliable operation.
Description of drawings
Fig. 1 is the overall schematic of embodiment that the utility model provides.
Fig. 2 is a direction control valve sectional view of the present utility model.
Fig. 3 is a solenoid operated directional valve sectional view of the present utility model.
Fig. 4 is a hydraulic drives valve sectional view of the present utility model.
Fig. 5 is applied to the schematic diagram of reverse osmosis desalination device for the utility model.
Fig. 6 is the H position enlarged view of Fig. 2.
Embodiment
With reference to accompanying drawing.Switching valve group 73 provided by the utility model is by a solenoid operated directional valve V
6, the direction control valve V of a hydraulic drives
5, four hydraulic drives valve V
1, V
2, V
3, V
4Combine, described valve group have six with extraneous outlet pass, be respectively pressure-exchange pipe outlet pass W
1, W
3, high-pressure thick water water-in W
2, concentrated water discharge mouth W
4, high pressure sea water water-in W
5, low pressure seawater water-in W
6
Described direction control valve V
5Be provided with valve seat 15, described valve seat is provided with outlet pass N from left to right
1, outlet pass N
2, water-in P
1, outlet pass N
3, outlet pass N
4
Described direction control valve V
5Also be provided with left valve gap 2 that is connected the valve seat left side and the right valve gap 11 that is connected the valve seat right side, described pilot control opening K
1, water port O
1Be arranged on the left valve gap 2 described pilot control opening K from left to right
2, water port O
2Be arranged on the right valve gap 11 from right-to-left; Left side valve gap 2 and right valve gap 11 are fixed to valve seat 15 left and right sides with bolt 25 respectively, make installation more simple.
Described direction control valve V5 installs the first porous ring 17 in the valve seat left side, the second porous ring, 13, the first porous rings 17 are installed in the valve seat right side are provided with from left to right and outlet pass N
1The first limbers T of conducting
1, with outlet pass N
2The second limbers T of conducting
2, the second porous ring 13 is provided with and outlet pass N from left to right
3The 3rd limbers T of conducting
3, with outlet pass N
4The four-way water hole T of conducting
4
Between the first porous ring 17 and the valve seat sealed with upper/lower positions: outlet pass N
1Left side, outlet pass N
1With outlet pass N
2Between, outlet pass N
2With pressure water import P
1Between; Drawing reference numeral 3,4,5 is respectively the sealing-ring of realizing above-mentioned sealing; Drawing reference numeral 19 is the sealing-ring together between the first porous ring 17 and the left valve gap 2;
Between the second porous ring 13 and the valve seat sealed with upper/lower positions: outlet pass N
4Right side, outlet pass N
4With outlet pass N
3Between, outlet pass N
3With pressure water import P
1Between; Drawing reference numeral 8,7,6 is respectively the sealing-ring of realizing above-mentioned sealing; Drawing reference numeral 12 is the sealing-ring together between the second porous ring 13 and the right valve gap 11;
Described direction control valve also is provided with valve rod 16, and described valve rod has left sealing-ring 18 that cooperates with 17 dynamic seals of the first porous ring and the right sealing-ring 14 that cooperates with 13 dynamic seals of the second porous ring;
Described direction control valve is provided with free driven plunger 9,20 at the two ends, the left and right sides of valve rod; Free driven plunger 20 is in guide's outlet pass K
1With water port O
1Between, free driven plunger 9 is in guide limbers K
2With the second water port O
2Between.Drawing reference numeral 1 is the sealing-ring of free driven plunger 20 between left valve gap 2, and drawing reference numeral 10 is the sealing-ring of free driven plunger 9 between right valve gap 11.
Direction control valve V
5Left sealing-ring 18, right sealing-ring 14, water port O
1And O
2, outlet pass N
1, N
2, N
3, N
4, water-in P
1Cooperation satisfy direction control valve V
5Five kinds of working ordeies can be provided:
1). water-in P
1With outlet pass N
1, N
2Connect and water port O
2With outlet pass N
3, N
4Connect,
2). water-in P
1With outlet pass N
1, N
2, N
3Connect and water port O
2With outlet pass N
4Connect,
3). water-in P
1With outlet pass N
2, N
3Connect and water port O
1With outlet pass N
1Connection, water port O
2With outlet pass N
4Connect,
4). water-in P
1With outlet pass N
2, N
3, N
4Connect and water port O
1With outlet pass N
1Connect,
5). water-in P
1With outlet pass N
3, N
4Connect and water port O
1With outlet pass N
1, N
2Connect.
In force, described left sealing-ring 18 and right sealing-ring 14 can adopt the self-fastening ring group respectively.Described self-fastening ring group adopts concave rubber sealing ring 100 and friction ring 200, and described friction ring 200 is in concave rubber sealing ring 100 inboards, and the spill of described concave rubber sealing ring is towards pressure water import P
1Residing this side is utilized self elasticity of spill sealing-ring to make friction ring be close to the porous ring inner surface and is formed the self-tightening type combination sealing.Spill sealing-ring 100 can adopt nitrile rubber, and friction ring 200 can adopt nylon or other macromolecular material to make.The internal surface of the first porous ring 17 and the second porous ring 13 reinforced plastic layer of can having combined closely, and constitute friction pair with the self-fastening ring group, like this, make can prolong the life-span of the present utility model greatly by the utility model good sealing effect and very wear-resisting; And valve rod 16 also can adopt engineering plastics to make, and the spool quality is little, inertia is little, stroke is short, and noise is little, it is fast to be active in one's movements, to respond; Like this, the utility model can be applicable to better with the Working environment of water as hydraulic transmission medium.
Also can combine closely reinforced plastic layer and constitute friction pair with described sealing member 1,10 in driven plunger 9,20 surfaces.
Guide's outlet pass K
1Or guide limbers K
2The place is provided with the pin type flow regulation device 24 of control valve rod 16 translational speed speeds, and drawing reference numeral 2 is that sealing-ring, drawing reference numeral 22 are packing ring, and drawing reference numeral 23 is a nut.
With reference to Fig. 4.Described hydraulic drives valve V
1, V
2, V
3, V
4Structure as follows: it comprises valve body 56, and described valve body one end connects valve gap 54, seals between valve body and the valve gap, and drawing reference numeral 55 is for realizing the sealing-ring of sealing.For hydraulic drives valve V
1, drawing reference numeral C is equivalent to pilot control opening C among Fig. 4
1, by that analogy.Be provided with spool 59 in the described valve body, be provided with spring 57 between spool 59 and the valve gap 54, the head of spool is a pyramidal structure, and valve body is provided with the valve core case that matches with this pyramidal structure, and drawing reference numeral 60 is the sealing-ring that cooperates with valve seat set on the spool.The water inlet A of hydraulic drives valve and water outlet B are located at respectively before and after the valve core case, for hydraulic drives valve V
1, drawing reference numeral A is equivalent to water inlet A among Fig. 4
1, drawing reference numeral B is equivalent to water inlet B
1, by that analogy.Also be provided with on the valve body between water outlet B and the valve gap 54 and combined seal ring 58 seal spool, that form by engineering plastics sealing-ring and rubber seal, described engineering plastics sealing-ring is in the inboard of rubber seal, the cross section of rubber seal is a matrix, its opening is towards valve gap, and it can adopt nitrile rubber.The material of spool 59 is rigid non-metallic material, it adopts the lightweight engineered plastics to make in the present embodiment, is specially the polyoxymethylene material, adopts the spool 59 of lightweight engineered plastics and combined seal ring 58 to constitute friction pair, like this, make the hydraulic drives valve seal effective and very wear-resisting, can prolong the life-span of hydraulic drives valve greatly, quality is little, inertia is little, stroke is short, noise is little, so it is active in one's movements, responds soon, can be applicable to better with the Working environment of water as hydraulic transmission medium.
Described solenoid operated directional valve V
6Be provided with valve seat 45, outlet pass N
5, water-in P
2, outlet pass N
6Be arranged on from left to right on the valve seat 45;
Described solenoid operated directional valve V
6Also be provided with left valve gap 37 that is connected the valve seat left side and the right valve gap 49 that is connected the valve seat right side, water port O
3Be arranged on the left valve gap 37 water port O
4Be arranged on the right valve gap 49;
Described solenoid operated directional valve V
6 Porous ring 42 is installed in valve seat 45 left sides, porous ring 48 is installed in the valve seat right side, porous ring 42 is provided with and outlet pass N
5The limbers S of conducting
5, porous ring 48 is provided with and outlet pass N
6The limbers S of conducting
6 Drawing reference numeral 41 and 50 is respectively the sealing-ring of realizing that left valve gap 37 and 42 sealings of porous ring, right valve gap 49 and porous ring 48 seal.
Between porous ring 42 and the valve seat 45 at outlet pass N
5Both sides sealing, between porous ring 48 and the valve seat 45 at outlet pass N
6Both sides sealing; Drawing reference numeral 53,52,46,47 is respectively the sealing-ring of realizing above-mentioned sealing.
Described solenoid operated directional valve V
6Also be provided with valve rod 44, described valve rod 44 has left sealing-ring 43 that cooperates with 42 dynamic seals of porous ring and the right sealing-ring 51 that cooperates with 48 dynamic seals of porous ring; A left side sealing-ring 43 and right sealing-ring 51 can adopt the left sealing-ring 18 in the direction control valve and the structure of right sealing-ring 14.
Described solenoid operated directional valve V
6Left end at valve rod is provided with piston 40, drawing reference numeral 39 is for realizing the sealing-ring of the sealing between piston 40 and the left valve gap 37, and being provided with electro-magnet 36 that cooperates with piston and the spring 38 that acts on piston at this end, the action direction and the electro-magnet of 38 pairs of pistons of spring are opposite to the action direction of piston.
Described left sealing-ring 43 and right sealing-ring 51, water port O
3And O
4, outlet pass N
5And N
6, water-in P
2Cooperation satisfy solenoid operated directional valve V
6Can provide two kinds of working ordeies: water-in P
2With outlet pass N
5Connect and water port O
4With outlet pass N
6Connect water-in P
2With outlet pass N
6Connect and water port O
3With outlet pass N
5Connect;
Direction control valve V
5Water-in P
1By water pipe 8 and high pressure sea water water-in W
5Link to each other solenoid operated directional valve V
6Water-in P
2By water pipe 13 and low pressure seawater water-in W
6Be communicated with;
Hydraulic drives valve V
1Water inlet A
1And hydraulic drives valve V
4Water inlet A
4By water pipe 2 connect and with high-pressure thick water water-in W
2Be communicated with;
Direction control valve V
5Outlet pass N
1 By water pipe 4 and hydraulic drives valve V
1Pilot control opening C
1Be communicated with outlet pass N
2 By water pipe 5 and hydraulic drives valve V
2Pilot control opening C
2Be communicated with outlet pass N
3 By water pipe 6 and hydraulic drives valve V
3Pilot control opening C
3Be communicated with outlet pass N
4 By water pipe 7 and hydraulic drives valve V
4Pilot control opening C
4Be communicated with;
Direction control valve V
5Pilot control opening K
1By water pipe 11 and solenoid operated directional valve V
6Outlet pass N
5Be communicated with direction control valve V
5Pilot control opening K
2By water pipe 12 and solenoid operated directional valve V
6Outlet pass N
6Be communicated with;
Hydraulic drives valve V
3Water inlet A
3With hydraulic drives valve V
1Water outlet B
1 By water pipe 1 connect and with pressure-exchange pipe outlet pass W
1Be communicated with; Hydraulic drives valve V
2Water inlet A
2With hydraulic drives valve V
4Water outlet B
4 By water pipe 3 connect and with pressure-exchange pipe outlet pass W
3Be communicated with;
Hydraulic drives valve V
2Water outlet B
2, hydraulic drives valve V
3Water outlet B
3, water port O
1, O
2, O
3, O
4By water pipe 9 link together and with concentrated water discharge mouth W
4Be communicated with;
Below in conjunction with accompanying drawing, set by step the utility model is done further statement:
1. the moisture that is come out by raw water pump 61 through pretreated seawater becomes two strands, and one seawater directly enters reverse osmosis unit 63 through high-pressure pump 62 superchargings; Another stock market water by 68 pressurizations of boost in pressure pump, enters reverse osmosis unit 63 more then through the pressure-exchange pipe.
2. when detecting in the pressure-exchange pipe 71 piston motion to the limit on the left position, the position transducer on the pressure-exchange pipe 71 69 gives PLC, PLC control solenoid operated directional valve V with signal feedback
6Electro-magnet get electricly, the low pressure seawater that boosts through raw water pump 61 is through W
6From water-in P
2Go into solenoid operated directional valve V
6, from outlet pass N
5Come out to enter water pipe 11, through pilot control opening K
1Approach axis control valve V
5, promote valve rod 16 and move right.
Just begun valve rod 16 and be positioned near the position of left end, sealing-ring 18 is in the limbers T of porous ring 17
1Left side, sealing-ring 14 are in the limbers T of porous ring 13
3The left side.By the high pressure sea water of boost in pressure pump 68 adherence pressures through outlet pass W
5Earlier from water-in P
1Approach axis control valve V
5, pass through outlet pass N again
1, N
2Flow into water pipe 4,5, then from pilot control opening C
1, C
2Enter hydraulic drives valve V
1, V
2, drive hydraulic drives valve V
1, V
2Spool 59, hydraulic drives valve V
1, V
2Close.Simultaneously, hydraulic drives valve V
3, V
4Guide's control chamber in seawater, respectively from pilot control opening C
3, C
4Enter water pipe 6,7, pass through outlet pass N again
3, N
4Approach axis control valve V
5, then from water port O
2Discharge hydraulic drives valve V
3, V
4Open.
At this moment, the high-pressure thick water that comes from reverse osmosis unit 63 dense water outs can be through water-in W
2Inhalent siphon 2 is through water inlet A
4Go into hydraulic pressure driver's valve V
4, again through water outlet B
4Inhalent siphon 3 and pressure-exchange pipe 71 outlet pass W
3Conducting; Simultaneously, the low-press thick water in the pressure-exchange pipe 72 can be through outlet pass W
1Inhalent siphon 1 is through water inlet A
3Go into hydraulic pressure driver's valve V
3, again through water outlet B
3Inhalent siphon 9 is from water port W
4Discharge.
Then valve rod 16 moves right certain distance, makes sealing-ring 18 still be in the limbers T of porous ring 17
1Left side, sealing-ring 14 are in the limbers T of porous ring 13
3With limbers T
4Between.High pressure sea water is through outlet pass W
5Earlier from water-in P
1Approach axis control valve V
5, pass through outlet pass N again
1, N
2, N
3, flow into water pipe 4,5,6, then from pilot control opening C
1, C
2, C
3Enter hydraulic drives valve V
1, V
2, V
3, drive hydraulic drives valve V
1, V
2, V
3Spool 59, hydraulic drives valve V
1, V
2, V
3Close.Simultaneously, hydraulic drives valve V
4Guide's control chamber in seawater, respectively from pilot control opening C
4 Enter water pipe 7, pass through outlet pass N again
4, approach axis control valve V
5, then from water port O
2Discharge hydraulic drives valve V
4Open.
At this moment, high-pressure thick water can be through water-in W
2Inhalent siphon 2 is through water inlet A
4Go into hydraulic pressure driver's valve V
4, again through water outlet B
4Inhalent siphon 3 and pressure-exchange pipe 71 outlet pass W
3Conducting; Simultaneously, the dense water in the pressure-exchange pipe 72 does not discharge.
Then valve rod 16 moves near the mid-way, and sealing-ring 18 still is in the limbers T of porous ring 17
1With limbers T
2Between, sealing-ring 14 is in the limbers T of porous ring 13
3With limbers T
4Between.High pressure sea water is earlier from water-in P
1Approach axis control valve V
5, pass through outlet pass N again
2, N
3Flow into water pipe 5,6, then from pilot control opening C
2, C
3Enter hydraulic drives valve V
2, V
3, drive hydraulic drives valve V
2, V
3Spool 59, hydraulic drives valve V
2, V
3Close.Simultaneously, hydraulic drives valve V
1, V
4Guide's control chamber in seawater, respectively from pilot control opening C
1, C
4Enter water pipe 4,7, pass through outlet pass N more respectively
1, N
4Approach axis control valve V
5, then respectively from water port O
1, O
2Discharge hydraulic drives valve V
1, V
4Open.
At this moment, high-pressure thick water can be through water-in W
2Inhalent siphon 2 is through water inlet A
1, A
4Go into hydraulic pressure driver's valve V
1, V
4, again through water outlet B
1, B
41,3 whiles and pressure- exchange pipe 72,71 outlet pass W of inhalent siphon
1, W
3Conducting.
At this moment, high-pressure thick water can be through water-in W
2Inhalent siphon 2 is through water inlet A
1Go into hydraulic pressure driver's valve V
1, again through water outlet B
1Inhalent siphon 1 and pressure-exchange pipe 72 outlet pass W
1Conducting; Simultaneously, the dense water in the pressure-exchange pipe 71 does not discharge.
At last, valve rod 16 continues end motion certain distance to the right, the limbers T of sealing-ring 18 porous rings 17
2Right side, sealing-ring 14 are in the limbers T of porous ring 13
4The right side.High pressure sea water is earlier from water-in P
1Approach axis control valve V
5, pass through outlet pass N again
3, N
4, flow into water pipe 6,7, then from pilot control opening C
3, C
4Enter hydraulic drives valve V
3, V
4, drive hydraulic drives valve V
3, V
4Spool 59, hydraulic drives valve V
3, V
4Close.Simultaneously, hydraulic drives valve V
1, V
2Guide's control chamber in seawater, respectively from pilot control opening C
1, C
2Enter water pipe 4,5, pass through outlet pass N more respectively
1, N
2, approach axis control valve V
5, then respectively from water port O
1Discharge hydraulic drives valve V
1, V
2Open.
At this moment, high-pressure thick water can be through water-in W
2Inhalent siphon 2 is through water inlet A
1Go into hydraulic pressure driver's valve V
1, again through water outlet B
1Inhalent siphon 1 and pressure-exchange pipe 72 outlet pass W
1Conducting; Simultaneously, the low pressure seawater in the pressure-exchange pipe 71 can be through outlet pass W
3Inhalent siphon 3 is through water inlet A
2Go into hydraulic pressure driver's valve V
2, again through water outlet B
2Inhalent siphon 9 is from water port W
4Discharge.
At this moment, the dense water of pressure-exchange pipe 72 inner high voltages is given the low pressure seawater with transmission ofenergy, becomes high pressure sea water after the supercharging of low pressure seawater, by 68 pressurizations of boost in pressure pump, enters reverse osmosis unit 63 then again; Simultaneously, become low-press thick water after the dense water supercharging exchange of pressure-exchange pipe 71 inner high voltages, the low pressure seawater is released pressure-exchange pipe 71 with low-press thick water, discharges through switching valve group 73.
3. when detecting in the pressure-exchange pipe 72 piston motion to the limit on the left position, the position transducer on the pressure-exchange pipe 72 70 gives PLC, PLC control solenoid operated directional valve V with signal feedback
6The electro-magnet dead electricity, the low pressure seawater can be through water-in W
6From water-in P
2Go into solenoid operated directional valve V
6, from outlet pass N
6Come out to enter water pipe 11, through pilot control opening K
2Approach axis control valve V
5, promote valve rod 16 and be moved to the left.
Just begin, valve rod 16 is positioned at right-hand member, the limbers T of sealing-ring 18 porous rings 17
2Right side, sealing-ring 14 are in the limbers T of porous ring 13
4The right side.High pressure sea water is earlier from water-in P
1Approach axis control valve V
5, pass through outlet pass N again
3, N
4, flow into water pipe 6,7 then from pilot control opening C
3, C
4Enter hydraulic drives valve V
3, V
4, drive hydraulic drives valve V
3, V
4Spool 59, hydraulic drives valve V
3, V
4Close.Simultaneously, hydraulic drives valve V
1, V
2Guide's control chamber in seawater, respectively from pilot control opening C
1, C
2Enter water pipe 4,5, pass through outlet pass N more respectively
1, N
2, approach axis control valve V
5, then respectively from water port O
1Discharge hydraulic drives valve V
1, V
2Open.
At this moment, high-pressure thick water can be through water-in W
2Inhalent siphon 2 is through water inlet A
1Go into hydraulic pressure driver's valve V
1, again through water outlet B
1Inhalent siphon 1 and pressure-exchange pipe 72 outlet pass W
1Conducting; Simultaneously, the low-press thick water in the pressure-exchange pipe 71 can be through outlet pass W
3Inhalent siphon 3 is through water inlet A
2Go into hydraulic pressure driver's valve V
2, again through water outlet B
2Inhalent siphon 9 is from water port [W
4] discharge.
Then, valve rod 16 is the end motion certain distance left, and sealing-ring 18 still is in the limbers T of porous ring 17
1With limbers T
2Between, sealing-ring 14 is in the limbers T of porous ring 13
4The right side.High pressure sea water is earlier from water-in P
1Approach axis control valve V
5, pass through outlet pass N again
2, N
3, N
4Flow into water pipe 5,6,7, then from pilot control opening C
2, C
3, C
4Enter hydraulic drives valve V
2, V
3, V
4, drive hydraulic drives valve V
2, V
3, V
4Spool 59, hydraulic drives valve V
2, V
3, V
4Close.Simultaneously, hydraulic drives valve V
1Guide's control chamber in seawater, respectively from pilot control opening C
1 Enter water pipe 4, pass through outlet pass N again
1, approach axis control valve V
5, then from water port O
1Discharge hydraulic drives valve [V
1] open.
At this moment, high-pressure thick water can be through water-in W
2Inhalent siphon 2 is through water inlet A
1Go into hydraulic pressure driver's valve V
1, again through water outlet B
1Inhalent siphon 1 and pressure-exchange pipe 72 outlet pass W
1Conducting; Simultaneously, the dense water in the pressure-exchange pipe 71 does not discharge.
Then valve rod 16 moves near the mid-way, and sealing-ring 18 still is in the limbers T of porous ring 17
1With limbers T
2Between, sealing-ring 14 is in the limbers T of porous ring 13
3With limbers T
4Between.High pressure sea water is earlier from water-in P
1Approach axis control valve V
5, pass through outlet pass N again
2, N
3, flow into water pipe 5,6, then from pilot control opening C
2, C
3Enter hydraulic drives valve V
2, V
3, drive hydraulic drives valve V
2, V
3Spool 59, hydraulic drives valve V
2, V
3Close.Simultaneously, hydraulic drives valve V
1, V
4Guide's control chamber in seawater, respectively from pilot control opening C
1, C
4Enter water pipe 4,7, pass through outlet pass N more respectively
1, N
4, approach axis control valve V
5, then respectively from water port O
1, O
2Discharge hydraulic drives valve V
1, V
4Open.
At this moment, high-pressure thick water can be through water-in W
2Inhalent siphon 2 is through water inlet A
1, A
4Go into hydraulic pressure driver's valve V
1, V
4, again through water outlet B
1, B
41,3 whiles and pressure- exchange pipe 72,71 outlet pass W of inhalent siphon
1, W
3Conducting.
Then, valve rod 16 continues to make sealing-ring 18 still be in the limbers T of porous ring 17 to the left movement certain distance
1Left side, sealing-ring 14 are in the limbers T of porous ring 13
3With limbers T
4Between.High pressure sea water is earlier from water-in P
1Approach axis control valve V
5, pass through outlet pass N again
1, N
2, N
3, flow into water pipe 4,5,6, then from pilot control opening C
1, C
2, C
3Enter hydraulic drives valve V
1, V
2, V
3, drive hydraulic drives valve V
1, V
2, V
3Spool 59, hydraulic drives valve V
1, V
2, V
3Close.Simultaneously, hydraulic drives valve V
4Guide's control chamber in seawater, respectively from pilot control opening C
4 Enter water pipe 7, pass through outlet pass N again
4, approach axis control valve V
5, then from water port O
2Discharge hydraulic drives valve V
4Open.
At this moment, high-pressure thick water can be through water-in W
2Inhalent siphon 2 is through water inlet A
4Go into hydraulic pressure driver's valve V
4, again through water outlet B
4Inhalent siphon 3 and pressure-exchange pipe 71 outlet pass W
3Conducting; Simultaneously, the dense water in the pressure-exchange pipe 72 does not discharge.
At last, valve rod 16 continues end motion certain distance left again, and sealing-ring 18 is in the limbers T of porous ring 17
1Left side, sealing-ring 14 are in the limbers T of porous ring 13
3The left side.High pressure sea water is earlier from water-in P
1Approach axis control valve V
5, pass through outlet pass N again
1, N
2Flow into water pipe 4,5, then from pilot control opening C
1, C
2Enter hydraulic drives valve V
1, V
2, drive hydraulic drives valve V
1, V
2Spool 59, hydraulic drives valve V
1, V
2Close.Simultaneously, hydraulic drives valve V
3, V
4Guide's control chamber in seawater, respectively from pilot control opening C
3, C
4Enter water pipe 6,7, pass through outlet pass N again
3, N
4Approach axis control valve V
5, then from water port O
2Discharge hydraulic drives valve V
3, V
4Open.
At this moment, high-pressure thick water can be through water-in W
2Inhalent siphon 2 is through water inlet A
4Go into hydraulic pressure driver's valve V
4. again through water outlet B
4Inhalent siphon 3 and pressure-exchange pipe 71 outlet pass W
3Conducting; Simultaneously, the low-press thick water in the pressure-exchange pipe 72 can be through outlet pass W
1Inhalent siphon 1 is through water inlet A
3Go into hydraulic pressure driver's valve V
3, again through water outlet B
3Inhalent siphon 9 is from water port W
4Discharge.
At this moment, the dense water of pressure-exchange pipe 71 inner high voltages is given the low pressure seawater with transmission ofenergy, becomes high pressure sea water after the supercharging of low pressure seawater, by 68 pressurizations of boost in pressure pump, enters reverse osmosis unit 63 then again; Simultaneously, the dense water of pressure-exchange pipe 72 inner high voltages becomes low-press thick water after supercharging, and the low pressure seawater is released pressure-exchange pipe 72 with low-press thick water, discharges through switching valve group 73.
4. when detecting in the pressure-exchange pipe 71 piston motion to the limit on the left position, the position transducer on the pressure-exchange pipe 71 69 gives PLC, PLC control solenoid operated directional valve V with signal feedback
6Electro-magnet get electricly, repeat abovementioned steps, move in circles like this, periodically dense water pressure can be passed to fresh seawater, thereby realize the recovery of energy.
At last, it is also to be noted that, more than only be examples of implementation more of the present utility model.Obviously, the utility model is not limited to above examples of implementation, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (9)
1. the switching valve group of a hydraulic drives is characterized in that it is by a solenoid operated directional valve [V
6], the direction control valve [V of a hydraulic drives
5], four hydraulic drives valve [V
1], [V
2], [V
3], [V
4] combine, described valve group have six with extraneous outlet pass, be respectively pressure-exchange pipe outlet pass [W
1], [W
3], high-pressure thick water water-in [W
2], concentrated water discharge mouth [W
4], high pressure sea water water-in [W
5], low pressure seawater water-in [W
6];
Direction control valve [V
5] have a water-in [P
1], water-in [P
1] by water pipe [8] and high pressure sea water water-in [W
5] link to each other solenoid operated directional valve [V
6] water-in [P
2] by water pipe [13] and low pressure seawater water-in [W
6] be communicated with;
The hydraulic drives valve has water-in, pilot control opening and water outlet respectively, the water-in of described hydraulic drives valve and the connection of water outlet and close by the control of the positive and negative pressure of pilot control opening and water-in;
Hydraulic drives valve [V
1] water-in [A
1] and hydraulic drives valve [V
4] water-in [A
4] by water pipe [2] connect and with high-pressure thick water water-in [W
2] be communicated with;
Direction control valve [V
5] have four outlet pass [N
1], [N
2], [N
3], [N
4], outlet pass [N
1] by water pipe [4] and hydraulic drives valve [V
1] pilot control opening [C
1] be communicated with outlet pass [N
2] by water pipe [5] and hydraulic drives valve [V
2] pilot control opening [C
2] be communicated with outlet pass [N
3] by water pipe [6] and hydraulic drives valve [V
3] pilot control opening [C
3] be communicated with outlet pass [N
4] by water pipe [7] and hydraulic drives valve [V
4] pilot control opening [C
4] be communicated with;
Solenoid operated directional valve [V
6] have two outlet pass [N
5], [N
6], direction control valve [V
5] also have two pilot control opening [K
1], [K
2], direction control valve [V
5] pilot control opening [K
1] by water pipe [11] and solenoid operated directional valve [V
6] outlet pass [N
5] be communicated with direction control valve [V
5] pilot control opening [K
2] by water pipe [12] and solenoid operated directional valve [V
6] outlet pass [N
6] be communicated with;
Hydraulic drives valve [V
3] water-in [A
3] and hydraulic drives valve [V
1] water outlet [B
1] by water pipe [1] connect and with pressure-exchange pipe outlet pass [W
1] be communicated with; Hydraulic drives valve [V
2] water-in [A
2] and hydraulic drives valve [V
4] water outlet [B
4] by water pipe [3] connect and with pressure-exchange pipe outlet pass [W
3] be communicated with;
Direction control valve [V
5] also have two water port [O
1], [O
2], solenoid operated directional valve [V
6] also have two water port [O
3], [O
4], hydraulic drives valve [V
2] water outlet [B
2], hydraulic drives valve [V
3] water outlet [B
3], water port [O
1], [O
2], [O
3], [O
4] by water pipe [9] link together and with concentrated water discharge mouth [W
4] be communicated with;
Solenoid operated directional valve [V
6] in be provided with on-off mechanism, described on-off mechanism, water port [O
3] and [O
4], outlet pass [N
5] and [N
6], water-in [P
2] cooperation satisfy solenoid operated directional valve [V
6] two kinds of working ordeies can be provided: water-in [P
2] and outlet pass [N
5] connect and water port [O
4] and outlet pass [N
6] connect water-in [P
2] and outlet pass [N
6] connect and water port [O
3] and outlet pass [N
5] connect;
Direction control valve [V
5] in be provided with on-off mechanism, described on-off mechanism, water port [O
1] and [O
2], outlet pass [N
1], [N
2], [N
3], [N
4], water-in [P
1] cooperation satisfy direction control valve [V
5] five kinds of working ordeies can be provided:
1). water-in [P
1] and outlet pass [N
1], [N
2] connect and water port [O
2] and outlet pass [N
3], [N
4] connect,
2). water-in [P
1] and outlet pass [N
1], [N
2], [N
3] connect and water port [O
2] and outlet pass [N
4] connect,
3). water-in [P
1] and outlet pass [N
2], [N
3] connect and water port [O
1] and outlet pass [N
1] connect, water port [O
2] and outlet pass [N
4] connect,
4). water-in [P
1] and outlet pass [N
2], [N
3], [N
4] connect and water port [O
1] and outlet pass [N
1] connect,
5). water-in [P
1] and outlet pass [N
3], [N
4] connect and water port [O
1] and outlet pass [N
1], [N
2] connect.
2. the switching valve group of a kind of hydraulic drives as claimed in claim 1 is characterized in that described direction control valve [V
5] be provided with valve seat [15], outlet pass [N
1], outlet pass [N
2], water-in [P
1], outlet pass [N
3], outlet pass [N
4] be arranged on the valve seat from left to right;
Described direction control valve [V
5] also be provided with left valve gap [2] that is connected valve seat left side and the right valve gap [11] that is connected the valve seat right side, described pilot control opening [K
1], water port [O
1] be arranged on the left valve gap [2] described pilot control opening [K from left to right
2], water port [O
2] be arranged on the right valve gap [11] from right-to-left;
Described direction control valve [V
5] in the valve seat left side, the first porous ring [17] is installed, the second porous ring [13] is installed in the valve seat right side, the first porous ring [17] is provided with and outlet pass [N from left to right
1] the first limbers [T of conducting
1], with outlet pass [N
2] the second limbers [T of conducting
2], the second porous ring [13] is provided with and outlet pass [N from left to right
3] the 3rd limbers [T of conducting
3], with outlet pass [N
4] the four-way water hole [T of conducting
4];
Between the first porous ring [17] and the valve seat sealed with upper/lower positions: outlet pass [N
1] left side, outlet pass [N
1] and outlet pass [N
2] between, outlet pass [N
2] and pressure water import [P
1] between;
Between the second porous ring [13] and the valve seat sealed with upper/lower positions: outlet pass [N
4] right side, outlet pass [N
4] and outlet pass [N
3] between, outlet pass [N
3] and pressure water import [P
1] between;
Described direction control valve also is provided with valve rod [16], and described valve rod has left sealing-ring [18] that cooperates with first porous ring [17] dynamic seal and the right sealing-ring [14] that cooperates with second porous ring [13] dynamic seal;
Described direction control valve is provided with free driven plunger [9], [20] at the two ends, the left and right sides of valve rod; Free driven plunger [20] is in guide's outlet pass [K
1] and water port [O
1] between, free driven plunger [9] is in guide limbers [K
2] and the second water port [O
2] between.
3. the switching valve group of a kind of hydraulic drives as claimed in claim 2, it is characterized in that described left sealing-ring [18] and right sealing-ring [14] adopt the self-fastening ring group respectively, described self-fastening ring group adopts concave rubber sealing ring and friction ring, described friction ring is in the concave rubber sealing ring inboard, and the spill of described concave rubber sealing ring is towards pressure water import [P
1] residing this side.
4. the switching valve group of a kind of hydraulic drives as claimed in claim 3 is characterized in that the internal surface of the first porous ring [17] and the second porous ring [13] has been combined closely reinforced plastic layer and constituted friction pair with the self-fastening ring group.
5. the switching valve group of a kind of hydraulic drives as claimed in claim 2, it is characterized in that left valve gap [2] and right valve gap [11] inwall are respectively equipped with sealing member [1], [10], has combined closely reinforced plastic layer and has constituted friction pair with described sealing member in free driven plunger [9], [20] surface.
6. the switching valve group of a kind of hydraulic drives as claimed in claim 2 is characterized in that valve rod [16] adopts engineering plastics to make.
7. the switching valve group of a kind of hydraulic drives as claimed in claim 2 is characterized in that guide's outlet pass [K
1] or [K
2] locate to be provided with the pin type flow regulation device [24] of control valve rod [16] translational speed speed.
8. the switching valve group of a kind of hydraulic drives as claimed in claim 1 is characterized in that described solenoid operated directional valve [V
6] be provided with valve seat [45], outlet pass [N
5], water-in [P
2], outlet pass [N
6] be arranged on from left to right on the valve seat [45];
Described solenoid operated directional valve [V
6] also be provided with left valve gap [37] that is connected valve seat left side and the right valve gap [49] that is connected the valve seat right side, water port [O
3] be arranged on the left valve gap [37] water port [O
4] be arranged on the right valve gap [49];
Described solenoid operated directional valve [V
6] in valve seat [45] left side, porous ring [42] is installed, porous ring [48] is installed in the valve seat right side, porous ring [42] is provided with and outlet pass [N
5] limbers [S of conducting
5], porous ring [48] is provided with and outlet pass [N
6] limbers [S of conducting
6];
Between porous ring [42] and the valve seat [45] at outlet pass [N
5] both sides sealing, between porous ring [48] and the valve seat [45] at outlet pass [N
6] both sides sealing;
Described solenoid operated directional valve [V
6] also being provided with valve rod [44], described valve rod [44] has left sealing-ring [43] that cooperates with porous ring [42] dynamic seal and the right sealing-ring [51] that cooperates with porous ring [48] dynamic seal;
Described solenoid operated directional valve [V
6] be provided with piston [40] in one of them of the two ends, the left and right sides of valve rod, and be provided with electro-magnet [36] that cooperates with piston and the spring [38] that acts on piston at this end, spring is opposite to the action direction of piston to the action direction and the electro-magnet of piston.
9. the switching valve group of a kind of hydraulic drives as claimed in claim 1, it is characterized in that described hydraulic drives valve comprises valve body, described valve body one end end connects valve gap, seal between valve body and the valve gap, the pilot control opening of hydraulic drives valve is located at valve gap, is provided with spool in the described valve body, be provided with spring between spool and the valve gap, the head of spool is a pyramidal structure, and valve body is provided with the valve core case that matches with this pyramidal structure, and the water-in of hydraulic drives valve and water outlet are located at respectively before and after the valve core case; Also be provided with on the valve body between water outlet and the valve gap and combined seal ring seal spool, that form by engineering plastics sealing-ring and rubber seal, described engineering plastics sealing-ring is in the inboard of rubber seal, and the contact surface material of described spool and described combined seal ring is engineering plastics and and combined seal ring formation friction pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201673333U CN201305484Y (en) | 2008-11-13 | 2008-11-13 | Switching valve group driven by hydraulic pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201673333U CN201305484Y (en) | 2008-11-13 | 2008-11-13 | Switching valve group driven by hydraulic pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201305484Y true CN201305484Y (en) | 2009-09-09 |
Family
ID=41097949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201673333U Expired - Lifetime CN201305484Y (en) | 2008-11-13 | 2008-11-13 | Switching valve group driven by hydraulic pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201305484Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456607B (en) * | 2008-11-13 | 2011-06-29 | 杭州水处理技术研究开发中心有限公司 | Water pressure driven switching valve group |
-
2008
- 2008-11-13 CN CNU2008201673333U patent/CN201305484Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456607B (en) * | 2008-11-13 | 2011-06-29 | 杭州水处理技术研究开发中心有限公司 | Water pressure driven switching valve group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090909 Effective date of abandoning: 20081113 |