CN102442716B - Valve control type energy recovery unit device - Google Patents
Valve control type energy recovery unit device Download PDFInfo
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- CN102442716B CN102442716B CN 201110410950 CN201110410950A CN102442716B CN 102442716 B CN102442716 B CN 102442716B CN 201110410950 CN201110410950 CN 201110410950 CN 201110410950 A CN201110410950 A CN 201110410950A CN 102442716 B CN102442716 B CN 102442716B
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Abstract
The invention provides a valve control type energy recovery unit device, comprising a four-way sliding valve, four-way rotary valves, a group of two pressure exchange tubes and four one-way check valves; the four one-way check valves are uniformly divided into two groups, and are respectively arranged on one side of the pressure exchange tube; and the other side of the pressure exchange tube is connected with a four-way reversing valve. The valve control type energy recovery unit device can adopt one group or more groups of pressure exchange tubes according to requirements, and the four-way rotary valves can be overlapped. The invention adopts an isobaric change exchange principle, uses the own high-pressure operation conditions of a reverse osmosis processing system, and fully recycles the excessive pressure energy of reverse osmosis high-concentration seawater under the high-pressure condition, so as to realize the purpose of saving energy. The valve control type energy recovery unit device is simple and reliable to control, is stable to operate, has excellent adaptability to the system flow and pressure, and has low noise; and the energy recovery rate of the device reaches up to more than 95%, so the device is easy to standardize and upsize. Through the valve control type energy recovery unit device, the water making energy consumption of the reverse osmosis system and the investment in high-pressure pumps are greatly reduced, and the device has an important significance for reducing the water making cost of reverse osmosis projects and reducing the project investment.
Description
Technical field
The present invention relates to a kind of pressure can be delivered to the energy recovery unit device of one other fluid from a kind of fluid, refer in particular to the valve-regulated energy recovery unit device for reverse osmosis seawater desalination system.
Technical background
Reverse osmosis technology belongs to pressure-actuated membrane separation technique, and the semipermeable membrane that adopts in its process operation is organically kept apart fresh water and concentrated seawater, under the effect of high pressure the fresh water in seawater or the brackish water is carried out separating process.Operation pressure is generally between 5.0～7.0MPa in China's reverse osmosis seawater desalting engineering, and the pressure of the concentrated seawater that discharges from film group device is still up to 4.8～6.8MPa.If the water recovery rate according to common 40% is calculated, 60% feed pressure energy is arranged in the concentrated seawater approximately, have huge recovery value and meaning.
Energy recycle device based on reverse osmosis seawater desalination system mainly contains water turbine type, differential pressure exchange type and isobaric exchange type at present.Comparatively complicated moving element is all adopted in these three kinds of designs, the agent structure of its energy interchange.In addition, water turbine type energy recycle device efficient is on the low side, and general energy recovery efficiency is between 40%～70%; It is less than normal that differential pressure exchange type energy recycle device is handled flow, is not suitable for large scale system; Isobaric exchange type energy recycle device efficient has become the emphasis of domestic and international research and extension at present up to more than 94%.
Chinese patent ZL98809685.4 has announced a kind of pressure exchanger, this pressure exchanger is subjected to the restriction of the volume of the rotating speed of rotor and rotor channel, the treating capacity of separate unit PX is less, next adopts rotor channel that the entity piston is not set to carry out mixing of insulating sea water and concentrated seawater, mixing section has been sacrificed the volume of rotor channel about 50%, high pressure sea water salinity after the supercharging simultaneously increases, and then improves the operation pressure of system; Can influence rotor speed during last changes in flow rate, cause system's fluctuation of service, and a large amount of noise severe contaminations that send in the rotor operation process surrounding enviroment.
Two pressurized container merit exchange energy recovers (DWEER) of Switzerland CALDER AG company, its LinX valve of carrying out the concentrated seawater guiding adopts the oil pressure guide to drive, and not only will dispose an independently pressurized oil system for this reason, and leakage of oil easily, pollution of marine environment.
Chinese patent 200510014295.9 discloses a kind of energy-saving reverse osmosis seawater/brackish water desalination technological method and device, its energy recycle device partly adopts two pressure-exchange pipe two ends to connect two switching valve patterns, two switching valves all adopt running shaft to drive valve core rotation, there is a control difficult problem in it, difficult realization opens and closes automatically function, the control of two end control systems, synchronism are difficult to guarantee.
Chinese patent 200910243806.2 discloses a kind of energy recovery type reverse osmosis process and energy recycle device thereof, and this energy recycle device mainly is made up of two pressurized containers, 8 solenoid valves and a recycle pump.It adopts the solenoid valve commutation, because switching frequency is higher, the solenoid valve life-span is short, and is fragile, the equal control system complexity in pressurized container two ends.This device needs the control system of more complicated, switches to form mechanical interlockedly reliably between the moment solenoid valve each other, the high pressure relief phenomenon very easily occurs, and then causes counter-infiltration system pressure and flow big fluctuation to occur, and practical application is restricted.
Summary of the invention
The purpose of this invention is to provide a kind of valve-regulated energy recovery unit device, its control is simple and reliable.For this reason, the present invention is by the following technical solutions:
A kind of valve-regulated energy recovery unit device, it comprises a pressure-exchange pipe group, and described pressure-exchange pipe group has two pressure-exchange pipes, and described pressure-exchange pipe group is set the straight line guiding valve of 4 one-way valves and 1 3-position 4-way; Every each built-in free-piston of pressure-exchange pipe, and the pressure-exchange pipe is divided into two active chambers is respectively to be transferred the fluid operating chamber and energy reclaims the fluid operating chamber;
Described four one way stop peturn valves are split two groups, and the direction of two groups of one-way valves is opposite, and wherein one group of one-way valve is as the low-pressure fluid suction valve of energy recycle device; Another group one-way valve is as the high pressure outlet valve of energy recycle device, and the fluid operating chamber that is transferred of each pressure-exchange pipe links to each other with one of them high pressure outlet valve with one of them low-pressure fluid suction valve;
Described straight line guiding valve has 2 intake-outlets, 1 water intake, 1 drain opening, described 2 intake-outlets reclaim the fluid operating chamber with the energy of two pressure-exchange pipes respectively and are connected, described 1 water intake and energy reclaim fluid source and are connected, and described 1 drain opening is used for the waste water of exhaust energy recovery fluid operating chamber after by exchange energy; The two ends of described straight line guiding valve are respectively equipped with the control mouth,
Described valve-regulated energy recovery unit device is provided with the four-way rotary valve, described four-way rotary valve is provided with and is exclusively used in into water intake, the water outlet that is exclusively used in water outlet and two intake-outlets of water, two intake-outlets of described four-way rotary valve are connected with two control mouths of described straight line guiding valve respectively, control described straight line guiding valve by the four-way rotary valve and periodically work in the 11st state to the 12 states, the 12nd state to the 13 states, the 13rd state to the 12 states, the 12nd state to the 11 states;
Described the 11st state is that first in 2 intake-outlets of straight line guiding valve are imported and exported and are communicated with water intake, and second import and export are communicated with drain opening;
Described the 12nd state switches the state of moment for the straight line guiding valve, and 2 intake-outlets of straight line guiding valve all are communicated with water intake;
Described the 11st state is that first intake-outlet in 2 intake-outlets of straight line guiding valve is communicated with water outlet, and second intake-outlet is communicated with water intake;
Described four-way rotary valve comprises valve body and rotary spool;
Described valve body is equipped with the first fluid passage in the axial front and back of rotary spool, second fluid passage, the 3rd fluid passage, the 4th fluid passage, described first fluid passage is connected with the pilot pressure water source as described water intake with extraneous connecting port and is exclusively used in into water, second fluid passage is exclusively used in draining with the connecting port in the external world as described drain opening, the water that will flow out from the control mouth of described guiding valve is discharged, the 3rd fluid passage and extraneous connecting port for the intake-outlet that the control mouth is connected of straight line guiding valve, the 4th fluid passage and the extraneous intake-outlet of connecting port for being connected with another control mouth of straight line guiding valve are the first fluid passage along circumferential the putting in order of rotary spool, the 3rd fluid passage, second fluid passage, the 4th fluid passage;
First fluid passage before and after the rotary spool all includes in the end of corresponding spool and leads to leading the way of spool, is outwards communicated by connecting passage in corresponding spool footpath, and it is led the way on same straight line; Second fluid passage before and after the rotary spool all includes in the end of corresponding spool leads to leading the way of spool, is outwards communicated by connecting passage in corresponding spool footpath, and it is led the way on same straight line; The 3rd fluid passage before and after the rotary spool all includes in the end of corresponding spool leads to leading the way of spool, is outwards communicated by connecting passage in corresponding spool footpath, and it is led the way on same straight line; The 4th fluid passage before and after the rotary spool all includes in the end of corresponding spool leads to leading the way of spool, is outwards communicated by connecting passage in corresponding spool footpath, and it is led the way on same straight line; The leading the way of the leading the way of the leading the way of first fluid passage, second fluid passage, the 3rd fluid passage, the 4th fluid passage lead the way spool on circumferentially equidistant distribute and circumference at same radius on;
Rotary spool has the circular arc passing hole type fluid passage of two symmetries, the length of described two circular arc passing hole type fluid passages satisfies can be connected adjacent in the leading the way of the leading the way of the leading the way of the leading the way of first fluid passage, second fluid passage, the 3rd fluid passage, the 4th fluid passage two and leads the way, and the spacing of described two circular arc passing hole type fluid passages satisfies can make leading the way simultaneously of the leading the way of first fluid passage, second fluid passage be in closed condition with the leading the way of the 3rd fluid passage, leading the way of the 4th fluid passage;
Described rotary spool connects a multidiameter shaft to accept driving force, and described valve body is provided with the axocoel of multidiameter shaft, is communicated with by the hole between second fluid passage and the axocoel, and multidiameter shaft one end passes valve body, and the axle that the other end is supported in the valve body holds in the palm;
Described rotary spool is driven by reducing gear by drive motor.
On the basis of adopting technique scheme, the present invention also can adopt following further technological scheme:
The described axocoel of four-way rotary valve is made of the center hole of valve body, and the valve body bottom also connects the fixed plate that supports described axle holder at the place, aperture of center hole, is sealed by Sealing between fixed plate and the valve body.
The described valve body of four-way rotary valve is formed by connecting by two valve body unit along the axial arranged connection of spool, with the Sealing sealing, each valve body unit is equipped with the first fluid passage and leads the way and connecting passage, second fluid passage and lead the way and connecting passage, the 3rd fluid passage and lead the way and connecting passage, the 4th fluid passage and lead the way and connecting passage outside spool for two valve body unit.
In the four-way rotary valve, this end that passes valve body with multidiameter shaft is last, the upper surface that is in the valve body unit of below is provided with the spool mounting hole, described spool is placed in the spool mounting hole, the upper surface flush of its surface and residing valve body unit, described multidiameter shaft contains the through hole of two quadratures, described two through holes are on the axial diverse location of multidiameter shaft, for the initial circumferentially angular orientation of installation mandrel connecting pin connection multidiameter shaft with rotary spool and the relative valve body of position rotating spool, spool is provided with corresponding connecting groove from the downward extension of upper surface.
The radially employing axle sleeve location multidiameter shaft of four-way rotary valve, axle sleeve and multidiameter shaft transition fit are with the valve body interference fit; The friction pair pairing of metal and macromolecular material is all adopted in multidiameter shaft and axle sleeve, multidiameter shaft and an axle holder cooperation place, and spool and cooperation between the valve body are that the friction pair between the different macromolecular materials matches; The place of passing of the corresponding multidiameter shaft of valve body is provided with at least one pair of mechanical seal, described mechanical seal includes stationary ring, rotating ring, elastic element, spring seat, stationary ring auxiliary seal ring, mechanical seal is perpendicular to the end face of multidiameter shaft, thereby stationary ring and rotating ring keep fitting and can slide and be equipped with auxiliary seal relatively under hydrodynamic pressure and spring force effect and reach the gland seal device that resistance is leaked.
For solving the problems of the technologies described above, the present invention also can be by the following technical solutions:
A kind of valve-regulated energy recovery unit device, it comprises many groups pressure-exchange pipe group in parallel, and described pressure-exchange pipe group has two pressure-exchange pipes, and every group of pressure-exchange pipe group set the straight line guiding valve of 4 one-way valves and 1 3-position 4-way; Every each built-in free-piston of pressure-exchange pipe, and the pressure-exchange pipe is divided into two active chambers is respectively to be transferred the fluid operating chamber and energy reclaims the fluid operating chamber;
Described four one way stop peturn valves are split two groups, and the direction of two groups of one-way valves is opposite, and wherein one group of one-way valve is as the low-pressure fluid suction valve of energy recycle device; Another group one-way valve is as the high pressure outlet valve of energy recycle device, and the fluid operating chamber that is transferred of each pressure-exchange pipe links to each other with one of them high pressure outlet valve with one of them low-pressure fluid suction valve;
Described straight line guiding valve has 2 intake-outlets, 1 water intake, 1 drain opening, described 2 intake-outlets reclaim the fluid operating chamber with the energy of two pressure-exchange pipes respectively and are connected, described 1 water intake and energy reclaim fluid source and are connected, and described 1 drain opening is used for the waste water of exhaust energy recovery fluid operating chamber after by exchange energy; The two ends of described straight line guiding valve are respectively equipped with the control mouth,
Described valve-regulated energy recovery unit device is provided with the four-way rotary valve, described four-way rotary valve is provided with and is exclusively used in the into water intake of water, be exclusively used in the drain opening of draining and the many groups intake-outlet that equates with pressure-exchange pipe group number, every group of intake-outlet has two intake-outlets, two intake-outlets of every group mouthful are connected with two controls of the straight line guiding valve of one group of pressure-exchange pipe group wherein respectively, control described straight line guiding valve by the four-way rotary valve and periodically work in the 11st state to the 12 states, the 12nd state to the 13 states, the 13rd state to the 12 states, the 12nd state to the 11 states;
Described the 11st state is that first in 2 intake-outlets of straight line guiding valve are imported and exported and are communicated with water intake, and second import and export are communicated with water outlet;
Described the 12nd state switches the state of moment for the straight line guiding valve, and 2 intake-outlets of straight line guiding valve all are communicated with water intake;
Described the 13rd state is that first in 2 intake-outlets of straight line guiding valve are imported and exported and are communicated with water outlet, and second import and export are communicated with water intake;
Described four-way rotary valve comprises valve body and rotary spool, and described rotary spool connects a multidiameter shaft to accept driving force;
Axial along described multidiameter shaft, described four-way rotary valve is provided with a plurality of valve bodies unit, many one of the quantity specific pressure exchange pipe group number of valve body unit, described valve body unit is divided into end unit and temporary location, described valve body is formed by connecting by described valve body unit, be provided with a described spool between the adjacent valve body unit, adjacent two valve body unit seal with Sealing outside spool;
Described valve body is equipped with the first fluid passage that is mated in the axial front and back of rotary spool, second fluid passage, the 3rd fluid passage, the 4th fluid passage, described first fluid passage is connected with the pilot pressure water source as described water intake with extraneous connecting port and is exclusively used in into water, second fluid passage is exclusively used in draining with the connecting port in the external world as described drain opening, the water that will flow out from the control mouth of described guiding valve is discharged, the 3rd fluid passage and extraneous connecting port for the intake-outlet that the control mouth is connected of straight line guiding valve, the 4th fluid passage and the extraneous intake-outlet of connecting port for being connected with another control mouth of straight line guiding valve are the first fluid passage along circumferential the putting in order of rotary spool, the 3rd fluid passage, second fluid passage, the 4th fluid passage;
Described end unit is provided with a first fluid passage and leads the way and connecting passage, second fluid passage and lead the way and connecting passage, the 3rd fluid passage and lead the way and connecting passage, the 4th fluid passage and lead the way and connecting passage; Described leading the way is in the position corresponding with spool end, and it is outside that described connecting passage is in the footpath of spool;
Described temporary location is provided with a first fluid passage and leads the way and connecting passage, second fluid passage and lead the way and connecting passage, two the 3rd fluid passages, two the 4th fluid passages; Attaching troops to a unit respectively to the spool on it and the spool under it in two the 3rd fluid passages, and all has it and lead the way and connecting passage; Attaching troops to a unit respectively to the spool on it and the spool under it in two the 4th fluid passages, and all has it and lead the way and connecting passage; Described leading the way is in the position corresponding with spool end, and it is outside that described connecting passage is in the footpath of spool;
Leading the way on same straight line of the first fluid passage of described end unit and temporary location, leading the way on same straight line of second fluid passage, leading the way on same straight line of the 3rd fluid passage, leading the way on same straight line of the 4th fluid passage, the leading the way of the leading the way of the leading the way of first fluid passage, second fluid passage, the 3rd fluid passage, the 4th fluid passage lead the way spool on circumferentially equidistant distribute and circumference at same radius on; The connecting passage of the first fluid passage of described end unit and temporary location is on same straight line, the connecting passage of second fluid passage is on same straight line, the connecting passage of the 3rd fluid passage is on same straight line, and the connecting passage of the 4th fluid passage is on same straight line;
Do not communicate between the 3rd fluid passage that different spools are attached troops to a unit, do not communicate between the 4th fluid passage that different spools are attached troops to a unit;
Rotary spool has the circular arc passing hole type fluid passage of two symmetries, the length of described two circular arc passing hole type fluid passages satisfies can be connected adjacent in the leading the way of the leading the way of the leading the way of the leading the way of first fluid passage, second fluid passage, the 3rd fluid passage, the 4th fluid passage two and leads the way, and the spacing of described two circular arc passing hole type fluid passages satisfies can make leading the way simultaneously of the leading the way of first fluid passage, second fluid passage be in closed condition with the leading the way of the 3rd fluid passage, leading the way of the 4th fluid passage; There is phase difference in the circular arc passing hole type fluid passage of each spool, makes each spool poor corresponding blanking time operation cycle;
Described valve body is provided with the axocoel of multidiameter shaft, is communicated with by the hole between second fluid passage and the axocoel, and multidiameter shaft one end passes valve body, and the axle that the other end is supported in the valve body holds in the palm;
Described rotary spool is driven by reducing gear by drive motor.
On the basis of adopting technique scheme, the present invention also can adopt following further technological scheme:
The described axocoel of four-way rotary valve is made of the center hole of valve body, and the valve body bottom also connects the fixed plate that supports described axle holder at the place, aperture of center hole, is sealed by Sealing between fixed plate and the valve body.
In the four-way rotary valve, this end that passes valve body with multidiameter shaft is last, the upper surface that is in the valve body unit of below is provided with the spool mounting hole, described spool is placed in the spool mounting hole, the upper surface flush of its surface and residing valve body unit, described multidiameter shaft contains the through hole of two quadratures, described two through holes are on the axial diverse location of multidiameter shaft, for the initial circumferentially angular orientation of installation mandrel connecting pin connection multidiameter shaft with rotary spool and the relative valve body of position rotating spool, spool is provided with corresponding connecting groove from the downward extension of upper surface.
The radially employing axle sleeve location multidiameter shaft of four-way rotary valve, axle sleeve and multidiameter shaft transition fit are with the valve body interference fit; The friction pair pairing of metal and macromolecular material is all adopted in multidiameter shaft and axle sleeve, multidiameter shaft and an axle holder cooperation place, and spool and cooperation between the valve body are that the friction pair between the different macromolecular materials matches; The place of passing of the corresponding multidiameter shaft of valve body is provided with at least one pair of mechanical seal, described mechanical seal includes stationary ring, rotating ring, elastic element, spring seat, stationary ring auxiliary seal ring, mechanical seal is perpendicular to the end face of multidiameter shaft, thereby stationary ring and rotating ring keep fitting and can slide and be equipped with auxiliary seal relatively under hydrodynamic pressure and spring force effect and reach the gland seal device that resistance is leaked.
Because adopt technological scheme of the present invention, the present invention has following beneficial effect:
1. because the straight line guiding valve adopts four-way rotary valve guide control, valve link promotes by the press water on the four-way rotary valve operation control system pipeline, so thrust can be very big, operates also very convenient, commutation is more suitable for the impervious desalination system of high pressure, big flow relatively steadily fast.
2. the four-way rotary valve adopts motor driving, compares with solenoid actuated, and reliability and working life improve greatly.
3. the present invention adopts free-piston to isolate, and the mixing that is transferred between fluid and the energy recovery fluid is less, and pressure-exchange pipe capacity utilization is higher.
4. the present invention adopts modular design, and device is easy to standardization, maximization, and many covers are in parallel easy to use.
5. four-way rotary valve of the present invention is stackable, and each overlaps and can form mechanical interlockedly reliably between the energy recovery unit device, and control is simple, reliable, not easy break-down.
Since every pressure-exchange pipe be transferred the liquid side and be provided with 2 one way stop peturn valves that direction is opposite, can be according to pressure-exchange pipe internal pressure situation automatic on-off, not only can the simplification device control system, and be not easy to break down.
7. move through long in demonstration project, device operates steadily, and noise is low, and energy recovery efficiency has high value of practical up to more than 95%, has produced remarkable economic efficiency and social benefit.
Description of drawings
Fig. 1 is the schematic representation of the embodiment of the invention 1, has shown the valve-regulated energy recovery unit device with one group of pressure-exchange pipe.
Fig. 2 is the axial arrangement sectional view of inventive embodiments 1 four-way rotary valve.
Fig. 3 is the transverse sectional view of embodiment's 1 four-way rotary valve, shows first kind of working state of spool.
Fig. 4 is the transverse sectional view of embodiment's 1 four-way rotary valve, shows second kind of working state of spool.
Fig. 5 is the transverse sectional view of embodiment's 1 four-way rotary valve, shows the third working state of spool.
Schematic representation when Fig. 6 is applied to reverse osmosis seawater desalination system for the embodiment of the invention 2 has comprised three groups of pressure-exchange pipes in parallel among the embodiment 2.
Fig. 7 is the axial arrangement sectional view of the embodiment of the invention 2 four-way rotary valves, and emphasis shows first fluid passage and second fluid passage.
Fig. 8 is the axial arrangement sectional view of the embodiment of the invention 2 four-way rotary valves, and emphasis shows the 3rd fluid passage and the 4th fluid passage.
Fig. 9 is the transverse sectional view of embodiment's 2 four-way rotary valves, shows the rotational position of the superiors' spool when first kind of working state.
Figure 10 is the transverse sectional view of embodiment's 2 four-way rotary valves, shows the superiors' spool when first kind of working state, and it is the residing rotational position of one deck spool down.
Figure 11 is the transverse sectional view of embodiment's 2 four-way rotary valves, shows the superiors' spool when first kind of working state, and it is the residing rotational position of second layer spool down.
Embodiment
Embodiment 1, with reference to Fig. 1-5.
The present invention includes a pressure-exchange pipe group, described pressure-exchange pipe group has two pressure- exchange pipes 51,52, and described pressure-exchange pipe group is set the straight line guiding valve 7 of 4 one- way valves 61,62,63,64 and 1 two-position four-ways; Every each built-in free-piston 50 of pressure-exchange pipe, and the pressure-exchange pipe is divided into two active chambers is respectively to be transferred fluid operating chamber 53 and energy reclaims fluid operating chamber 54;
Described four one way stop peturn valves are split two groups, and the direction of two groups of one-way valves is opposite, wherein one group of one-way valve 61, the 62 low-pressure fluid suction valves as energy recycle device, and described low-pressure fluid is for being transferred fluid, such as the low pressure seawater of need desalination; Another group one-way valve 63, the 64 high pressure outlet valves as energy recycle device, described high pressure water outlet is transferred fluid for the high pressure after absorbing energy, and the fluid operating chamber that is transferred of each pressure-exchange pipe links to each other with one of them high pressure outlet valve with one of them low-pressure fluid suction valve;
Described straight line guiding valve has 2 intake-outlet A ', B ', 1 water intake P ', 1 drain opening O ', described 2 intake-outlet A ', B ' reclaim fluid operating chamber 54 with the energy of two pressure-exchange pipes respectively and are connected, described 1 water intake P is connected with the source that energy reclaims fluid, such as the high-pressure thick seawater that discharges in the reverse osmosis film group device, described 1 drain opening is used for exhaust energy and reclaims the waste water of fluid operating chamber after by exchange energy; The two ends of described straight line guiding valve are respectively equipped with control mouthful K1, K2.
Described valve-regulated energy recovery unit device is provided with the four-way rotary valve, described four-way rotary valve is provided with and is exclusively used in into water intake P, the drain opening T that is exclusively used in draining and two intake-outlet A, B of water, two intake-outlet A, B of described four-way rotary valve are connected with two controls mouthful K1, K2 of described straight line guiding valve respectively, control described straight line guiding valve by the four-way rotary valve and periodically work in the 11st state to the 12 states, the 12nd state to the 13 states, the 13rd state to the 12 states, the 12nd state to the 11 states;
Described the 11st state is that first in 2 intake-outlets of straight line guiding valve are imported and exported A ' and are communicated with water intake P ', and the second intake-outlet B ' is communicated with drain opening O ';
Described the 12nd state switches the state of moment for the straight line guiding valve, and 2 intake-outlet A ', B ' of straight line guiding valve are communicated with water intake P ';
Described the 13rd state is that first in 2 intake-outlets of straight line guiding valve are imported and exported A ' and are communicated with water outlet O ', and the second intake-outlet B ' is communicated with water intake P ';
Described four-way rotary valve 100 comprises valve body and rotary spool 2.
Described valve body is equipped with first fluid passage 11 in the axial front and back of rotary spool 2, second fluid passage 12, the 3rd fluid passage 13, the 4th fluid passage 14, described first fluid passage 11 and extraneous connecting port are connected and are exclusively used in into water with controlling with pressure water source as described water intake P, control with pressure water source such as being the high-pressure thick seawater that discharges in the reverse osmosis film group device, second fluid passage 12 is exclusively used in draining with the connecting port in the external world as described drain opening T, the water that will flow out from the control mouth of guiding valve 7 is discharged, the 3rd fluid passage 13 and extraneous connecting port for an intake-outlet A that control mouthful K1 is connected of straight line guiding valve, the 4th fluid passage 14 and the extraneous intake-outlet B of connecting port for being connected with another control mouthful K2 of straight line guiding valve are first fluid passage 11 along circumferential the putting in order of rotary spool, the 3rd fluid passage 12, second fluid passage 13, the 4th fluid passage 14; Before and after in the external connecting port in first fluid passage 11, second fluid passage 12, the 3rd fluid passage 13, the 4th fluid passage 14 one of them can be by shutoff.
The first fluid passage 11 of rotary spool 2 front and back all include in the end of corresponding spool 2 lead to spool 2 lead the way 111, outwards communicated by connecting passage 112 in corresponding spool 2 footpaths, it leads the way 111 on same straight line; Second fluid passage 12 before and after the rotary spool all include in the end of corresponding spool 2 lead to spool 2 lead the way 121, directly outwards communicated by connecting passage 122 at corresponding spool 2, it leads the way 121 on same straight line; The 3rd fluid passage 13 of rotary spool 2 front and back all include in the end of corresponding spool 2 lead to spool 2 lead the way 131, outwards communicated by connecting passage 132 in corresponding spool 2 footpaths, it leads the way 131 on same straight line; The 4th fluid passage 14 of rotary spool 2 front and back all include in the end of corresponding spool 2 lead to spool 2 lead the way 141, outwards communicated by connecting passage 142 in corresponding spool 2 footpaths, it leads the way 141 on same straight line; The 131, the 4th fluid passage of leading the way of the 121, the 3rd fluid passage of leading the way of 111, second fluid passage of leading the way of first fluid passage lead the way 141 spool 2 on circumferentially equidistant distribute and circumference at same radius on.
Described rotary spool 2 connects a multidiameter shaft 3 accepting driving force, and described valve body is provided with between axocoel 31, the second fluid passages 12 of multidiameter shaft and the axocoel 31 and is communicated with by hole 32, and multidiameter shaft 3 one ends pass valve body, and the other end is supported in the axle holder 33 in the valve body.
Described axocoel 31 is made of the center hole of valve body, and the valve body bottom also connects the fixed plate 34 that supports described axle holder 33 at the place, aperture of center hole, is sealed by seal ring between fixed plate and the valve body.
Described valve body adopts bolt to be formed by connecting by two the valve body unit 41,42 along the axial arranged connection of spool, with the Sealing sealing, each valve body unit is equipped with first fluid passage 11 and leads the way 111 and connecting passage 121, second fluid passage 12 and lead the way 121 and connecting passage 122, the 3rd fluid passage 13 and lead the way 131 and connecting passage 132, the 4th fluid passage 14 and lead the way 141 and connecting passage 142 outside spool for two unit.
This end that passes valve body with multidiameter shaft is last, the upper surface that is in the valve body unit of below is provided with spool mounting hole 24, described spool 2 is placed in the spool mounting hole 24, the upper surface flush of its surface and residing valve body unit, described multidiameter shaft contains the through hole 34 of two quadratures, described two through holes are on the axial diverse location of multidiameter shaft, for the initial circumferential angular orientation of mandrel connecting pin 35 connection multidiameter shafts 3 with rotary spool 2 and the relative valve body of position rotating spool is installed, spool 2 is provided with accordingly from the downward connecting groove 23 that extends of upper surface.
The axle sleeve 35 location multidiameter shafts 3 that radially adopt of the present invention, axle sleeve 35 and multidiameter shaft 3 transition fit are with the valve body interference fit; The friction pair pairing of metal and macromolecular material is all adopted in multidiameter shaft 3 and axle sleeve 35, multidiameter shaft 3 and axle holder 33 cooperation places, and spool 2 and cooperation between the valve body are that the friction pair between the different macromolecular materials matches; The place of passing of the corresponding multidiameter shaft of valve body is provided with at least one pair of mechanical seal 36, seals with 36 pairs of multidiameter shafts 3 of mechanical seal and static valve body, compresses mechanical seal with valve upper cover plate 39.Described mechanical seal includes stationary ring 361, rotating ring 362, spring 38, spring seat 40, stationary ring auxiliary seal ring 37, mechanical seal 36 is perpendicular to the end face of multidiameter shaft, thereby stationary ring 361 and rotating ring 362 keep fitting and can slide and be equipped with auxiliary seal relatively under hydrodynamic pressure and spring force effect and reach the gland seal device that resistance is leaked.
The four-way rotary valve that present embodiment provides can carry out following state successively continuously and switch when working:
State 1: as shown in Figure 3, rotary spool 2 circular arc passages 21 are communicated with first fluid passage 11 and the 3rd fluid passage 13, and rotary spool 2 circular arc passages 22 are communicated with second fluid passage 12 and the 4th fluid passage 14.First liquid stream advances from first fluid passage 11, goes out from the 3rd fluid passage 13 after 21 commutations of rotary spool 2 circular arc through holes; Second liquid stream advances from the 4th fluid passage 14, goes out from second fluid passage 12 after 22 commutations of rotary spool 2 circular arc through holes.
State 2: as shown in Figure 4, after rotary spool 2 rotates to an angle, its circular arc passage 22 only is communicated with the 4th fluid passage 14, and rotary spool 2 circular arc passages 21 only are communicated with the 3rd fluid passage 13, does not communicate with first fluid passage 11, second fluid passage 12.
State 3: as shown in Figure 5, after rotary spool 2 continued to rotate to next angle, its circular arc passage 22 was communicated with first fluid passage 11 and the 4th fluid passage 14, and rotary spool 2 circular arc passages 21 are communicated with second fluid passage 12 and the 3rd fluid passage 13.This moment, first liquid stream advanced from first fluid passage 11, went out from the 4th fluid passage 14, and second liquid stream advances from the 3rd fluid passage 13, goes out from second fluid passage 12.
This four-way rotary valve is the cycle with " state 1 → state 2 → state 3 → state 2 → state 1 ", switches continuously.
When the four-way rotary valve was in state 1, control mouthful K1 advanced the control press water, and control mouthful K2 goes out control and uses press water, and guiding valve 7 is in the 11st state,
When the four-way rotary valve was in state 2, guiding valve 7 kept previous state,
When the four-way rotary valve was in state 3, control mouthful K1 went out the control press water, and control mouthful K2 advances to control to use press water, guiding valve 7 to be in from the 11st state through the 12nd state, enters the 13rd state.
Go round and begin again.
The present invention includes the pressure-exchange pipe group of three groups of parallel connections, described pressure-exchange pipe group has two pressure- exchange pipes 51,52, and every group of pressure-exchange pipe group set the straight line guiding valve 7 of 4 one- way valves 61,62,63,64 and 1 3-position 4-ways; Every each built-in free-piston 50 of pressure-exchange pipe, and the pressure-exchange pipe is divided into two active chambers is respectively to be transferred fluid operating chamber 53 and energy reclaims fluid operating chamber 54;
Described four one way stop peturn valves are split two groups, and the direction of two groups of one-way valves is opposite, and wherein one group of one-way valve 61, the 62 low-pressure fluid suction valves as energy recycle device, described low-pressure fluid are for being transferred fluid, the low pressure seawater that also namely need desalinate; Another group one-way valve 63, the 64 high pressure outlet valves as energy recycle device, described high pressure water outlet is the high pressure sea water of the need desalination after absorbing energy, and the fluid operating chamber that is transferred of each pressure-exchange pipe links to each other with one of them high pressure outlet valve with one of them low-pressure fluid suction valve.
Described straight line guiding valve has 2 intake-outlet A ', B ', 1 water intake P ', 1 drain opening O ', 2 intake-outlet A ', B ' reclaim fluid operating chamber 54 with the energy of two pressure-exchange pipes respectively and are connected, 1 water intake P is connected with the source that energy reclaims fluid, high-pressure thick seawater such as discharging in the reverse osmosis film group device 95,1 drain opening O ' is used for exhaust energy and reclaims fluid operating chamber 54 by the waste water behind the exchange energy, also is the low-press thick seawater; The two ends of described straight line guiding valve are respectively equipped with control mouthful K1, K2.
Described valve-regulated energy recovery unit device is provided with the four-way rotary valve, described four-way rotary valve is provided with and is exclusively used in the into water intake P of water, be exclusively used in the water outlet T of water outlet and the many groups intake-outlet that equates with pressure-exchange pipe group number, every group of intake-outlet has two intake-outlet A, B, every group of intake-outlet A of described four-way rotary valve, B respectively with two control mouthful K1 of the straight line guiding valve of one group of pressure-exchange pipe group wherein, K2 connects, and controls described straight line guiding valve by the four-way rotary valve and periodically works in the 11st state to the 12 states, the 12nd state to the 13 states, the 13rd state to the 12 states, the 12nd state to the 11 states.
Described the 11st state is that first in 2 intake-outlets of straight line guiding valve are imported and exported A ' and are communicated with water intake P ', and the second import and export B ' is communicated with water outlet O ';
Described the 12nd state switches the state of moment for the straight line guiding valve, and 2 intake-outlet A ', B ' of straight line guiding valve are communicated with water intake P ';
Described the 13rd state is that first in 2 intake-outlets of straight line guiding valve are imported and exported A ' and are communicated with water outlet O ', and the second import and export B ' is communicated with water intake P ';
Described four-way rotary valve 100 comprises valve body and rotary spool 2, and described rotary spool 2 connects a multidiameter shaft 3 to accept driving force.
Axial along described multidiameter shaft, described four-way rotary valve is provided with four valve body unit, described valve body unit is divided into end unit and identical temporary location, this end that passes valve body with multidiameter shaft is last, described end unit is last end unit 41, base unit 42, temporary location has 2 in the present embodiment, its label is respectively 43,44, described valve body adopts bolt to be formed by connecting by described valve body unit, be provided with a described spool 2 between the adjacent valve body unit, adjacent two valve body unit with the Sealing sealing, adopt this structure outside spool 2, each temporary location can be made into identical, and precision is convenient to be made to improve.
Described valve body is equipped with the first fluid passage 11 that is mated in the axial front and back of rotary spool, second fluid passage 12, the 3rd fluid passage 13, the 4th fluid passage 14, described first fluid passage 11 and extraneous connecting port are connected and are exclusively used in into water with controlling with pressure water source as described water intake P, control with pressure water source such as the high-pressure thick seawater that is discharging in the reverse osmosis film group device 95, second fluid passage 12 is exclusively used in draining with the connecting port in the external world as described drain opening T, the water that will flow out from the control mouth of guiding valve 7 is discharged, the 3rd fluid passage 13 and extraneous connecting port for an intake-outlet A that control mouthful K1 is connected of straight line guiding valve, the 4th fluid passage 14 and the extraneous intake-outlet B of connecting port for being connected with another control mouthful K2 of straight line guiding valve are first fluid passage 11 along circumferential the putting in order of rotary spool 2, the 3rd fluid leads to 13 roads, second fluid passage 12, the 4th fluid passage 14.
Described end unit is provided with a first fluid passage 11 and leads the way 111 and connecting passage 112, second fluid passage 12 and lead the way 121 and connecting passage 122, the 3rd fluid passage 13 and lead the way 131 and connecting passage 132, the 4th fluid passage 14 and lead the way 141 and connecting passage 142; Described leading the way 111,121,131,141 is in the position corresponding with spool 2 end faces, and it is outside that described connecting passage 112,122,132,142 is in the footpath of spool 2.
Described temporary location is provided with a first fluid passage 11 and leads the way 111 and connecting passage 112, second fluid passage 12 and lead the way 121 and connecting passage 122, two the 3rd fluid passages 13, two the 4th fluid passages 14; Attaching troops to a unit respectively to the spool 2 on it and the spool 2 under it in two the 3rd fluid passages 13, and all has it and lead the way 131 and connecting passage 132; Attaching troops to a unit respectively to the spool 2 on it and the spool 2 under it in two the 4th fluid passages 14, and all has it and lead the way 141 and connecting passage 142; Described leading the way 111,121,131,141 is in the position corresponding with spool 2 end faces, and it is outside that described connecting passage 112,122,132,142 is in the footpath of spool 2.
The first fluid passage 11 of described end unit and temporary location lead the way 111 on same straight line, second fluid passage 12 lead the way 121 on same straight line, the 3rd fluid passage 13 lead the way 131 on same straight line, the 4th fluid passage 14 lead the way 141 on same straight line, the 131, the 4th fluid passage of leading the way of the 121, the 3rd fluid passage of leading the way of 111, second fluid passage of leading the way of first fluid passage lead the way 141 spool on circumferentially equidistant distribute and circumference at same radius on; The connecting passage 112 of the first fluid passage of described end unit and temporary location is on same straight line, the connecting passage 122 of second fluid passage is on same straight line, the connecting passage 132 of the 3rd fluid passage is on same straight line, and the connecting passage 142 of the 4th fluid passage is on same straight line.
Do not communicate between the 3rd fluid passage 13 that different spools are attached troops to a unit, do not communicate between the 4th fluid passage 14 that different spools are attached troops to a unit; The first fluid passage 11 of different spools communicate or do not communicate can, second fluid passage 12 of different spools communicates or do not communicate can.
Described valve body is provided with between axocoel 31, the second fluid passages 12 of multidiameter shaft and the axocoel 31 and is communicated with by hole 32, and multidiameter shaft 3 one ends pass valve body, and the other end is supported in the axle holder 33 in the valve body.
Described axocoel 31 is made of the center hole of valve body, and the valve body bottom also connects the fixed plate 34 that supports described axle holder 33 at the place, aperture of center hole, is sealed by seal ring between fixed plate and the valve body.
This end that passes valve body with multidiameter shaft is last, the upper surface that is in the valve body unit of below is provided with spool mounting hole 24, described spool 2 is placed in the spool mounting hole 24, the upper surface flush of its surface and residing valve body unit, described multidiameter shaft contains the through hole 26 of two quadratures, described two through holes are on the axial diverse location of multidiameter shaft, for the initial circumferential angular orientation of mandrel connecting pin 25 connection multidiameter shafts 3 with rotary spool 2 and the relative valve body of position rotating spool is installed, spool 2 is provided with accordingly from the downward connecting groove 23 that extends of upper surface.
Following structure is also identical with embodiment 1: present embodiment radially adopts axle sleeve location multidiameter shaft, and axle sleeve and multidiameter shaft transition fit are with the valve body interference fit; The friction pair pairing of metal and macromolecular material is all adopted in multidiameter shaft and axle sleeve, multidiameter shaft and an axle holder cooperation place, and spool and cooperation between the valve body are that the friction pair between the different macromolecular materials matches; The place of passing of the corresponding multidiameter shaft of valve body is provided with at least one pair of mechanical seal, with mechanical seal multidiameter shaft and static valve body is sealed, and compresses mechanical seal with the valve upper cover plate.Described mechanical seal includes stationary ring, rotating ring, spring, spring seat, stationary ring auxiliary seal ring, mechanical seal is perpendicular to the end face of multidiameter shaft, thereby stationary ring and rotating ring keep fitting and can slide and be equipped with auxiliary seal relatively under hydrodynamic pressure and spring force effect and reach the gland seal device that resistance is leaked.
Described multidiameter shaft 3 is connected with drive motor by reducing gear.
Drawing reference numeral 91 is suction booster, is used for improving the pressure that needs desalination charging seawater, can overcome the resistance on seawater treatment apparatus and the pipeline, and enter pressure-exchange pipe group.
Drawing reference numeral 92 is the sea water preprocessing device, is used for need desalination charging seawater is filtered.
Drawing reference numeral 93 is elevator pump, is used for the discharging high pressure sea water of pressure-exchange pipe group is further improved pressure again, can reach the feed pressure of reverse osmosis film group device.
Accompanying drawing table 94 is high-pressure service pump, for raising pressure that the need without pressure-exchange pipe group are desalinized seawater, can reach the feed pressure of reverse osmosis film group device.
Drawing reference numeral 96 is the water tank of the fresh water after the reverse osmosis film group device is handled.
With daily output fresh water 10000m
3, the reverse osmosis seawater desalting engineering of the water recovery rate 40% is example, at 25 ℃, is 35000mg/L to water concentration, under the PH=7 condition, under noenergy recovering device situation, the system ontology energy consumption is 8kWh/m
3, the system ontology energy consumption is 4kwh/m after using energy recycle device of the present invention
3, can save energy consumption and expense is as follows:
Can economize on electricity with ton water: 4kWh; Electricity price: 0.6 yuan/kWh; The utilization of capacity: 80%, then annual economize on electricity expense is:
Ten thousand yuan/year of ξ=10000 * 365 * 80% * 4.0 * 0.6 ÷ 10000=700.8
With 10000m
3The sea water desalinating unit of/d is example, and the system high pressure pump duty with energy recycle device does not need 1050m
3/ h, and the system high pressure pump duty of band energy recycle device of the present invention only needs 420m
3Therefore/d adopts this energy recycle device can reduce the investment of desalination of sea water high-pressure service pump significantly, and economic benefit is fairly obvious.
Claims (9)
1. a valve-regulated energy recovery unit device is characterized in that it comprises a pressure-exchange pipe group, and described pressure-exchange pipe group has two pressure-exchange pipes, and described pressure-exchange pipe group is set the straight line guiding valve of 4 one-way valves and 1 3-position 4-way; Every each built-in free-piston of pressure-exchange pipe, and the pressure-exchange pipe is divided into two active chambers is respectively to be transferred the fluid operating chamber and energy reclaims the fluid operating chamber;
Described 4 one-way valves are split two groups, and the direction of two groups of one-way valves is opposite, and wherein one group of one-way valve is as the low-pressure fluid suction valve of energy recovery unit device; Another group one-way valve is as the high pressure outlet valve of energy recovery unit device, wherein the fluid operating chamber that is transferred of a pressure-exchange pipe links to each other with one of them high pressure outlet valve with one of them low-pressure fluid suction valve, and be transferred fluid operating chamber and another low-pressure fluid suction valve wherein of another root pressure-exchange pipe link to each other with another high pressure outlet valve wherein;
Described straight line guiding valve has 2 intake-outlets, 1 water intake, 1 drain opening, described 2 intake-outlets reclaim the fluid operating chamber with the energy of two pressure-exchange pipes respectively and are connected, described 1 water intake and energy reclaim fluid source and are connected, and described 1 drain opening is used for the low pressure waste water of exhaust energy recovery fluid operating chamber after by exchange energy; The two ends of described straight line guiding valve are respectively equipped with the control mouth,
Described valve-regulated energy recovery unit device is provided with the four-way rotary valve, described four-way rotary valve is provided with and is exclusively used in into water intake, the water outlet that is exclusively used in water outlet and two intake-outlets of water, two intake-outlets of described four-way rotary valve are connected with two control mouths of described straight line guiding valve respectively, control described straight line guiding valve by the four-way rotary valve and periodically work in the 11st state to the 12 states, the 12nd state to the 13 states, the 13rd state to the 12 states, the 12nd state to the 11 states;
Described the 11st state is that first intake-outlet in 2 intake-outlets of straight line guiding valve is communicated with the water intake of described straight line guiding valve, and second intake-outlet is communicated with drain opening;
Described the 12nd state switches the state of moment for the straight line guiding valve, and 2 intake-outlets of straight line guiding valve all are communicated with the water intake of described straight line guiding valve;
Described the 13rd state is that first intake-outlet in 2 intake-outlets of straight line guiding valve is communicated with drain opening, and second intake-outlet is communicated with the water intake of described straight line guiding valve;
Described four-way rotary valve comprises valve body and rotary spool;
Described valve body is equipped with the first fluid passage in the axial front and back of rotary spool, second fluid passage, the 3rd fluid passage, the 4th fluid passage, described first fluid passage is connected with the pilot pressure water source as described water intake with extraneous connecting port and is exclusively used in into water, second fluid passage is exclusively used in draining with the connecting port in the external world as described water outlet, the water that will flow out from the control mouth of described straight line guiding valve is discharged, the 3rd fluid passage and extraneous connecting port for the intake-outlet that the control mouth is connected of straight line guiding valve, the 4th fluid passage and the extraneous intake-outlet of connecting port for being connected with another control mouth of straight line guiding valve are the first fluid passage along circumferential the putting in order of rotary spool, the 3rd fluid passage, second fluid passage, the 4th fluid passage;
First fluid passage before and after the rotary spool all includes in the end of corresponding rotation spool and leads to leading the way of rotary spool, is outwards communicated by connecting passage in corresponding rotation spool footpath, and it is led the way on same straight line; Second fluid passage before and after the rotary spool all includes in the end of corresponding rotation spool leads to leading the way of rotary spool, is outwards communicated by connecting passage in corresponding rotation spool footpath, and it is led the way on same straight line; The 3rd fluid passage before and after the rotary spool all includes in the end of corresponding rotation spool leads to leading the way of rotary spool, is outwards communicated by connecting passage in corresponding rotation spool footpath, and it is led the way on same straight line; The 4th fluid passage before and after the rotary spool all includes in the end of corresponding rotation spool leads to leading the way of rotary spool, is outwards communicated by connecting passage in corresponding rotation spool footpath, and it is led the way on same straight line; The leading the way of the leading the way of the leading the way of first fluid passage, second fluid passage, the 3rd fluid passage, the 4th fluid passage lead the way rotary spool on circumferentially equidistant distribute and circumference at same radius on;
Rotary spool has the circular arc passing hole type fluid passage of two symmetries, the length of described two circular arc passing hole type fluid passages satisfies can be connected adjacent in the leading the way of the leading the way of the leading the way of the leading the way of first fluid passage, second fluid passage, the 3rd fluid passage, the 4th fluid passage two and leads the way, and the spacing of described two circular arc passing hole type fluid passages satisfies can make leading the way simultaneously of the leading the way of first fluid passage, second fluid passage be in closed condition with the leading the way of the 3rd fluid passage, leading the way of the 4th fluid passage;
Described rotary spool connects a multidiameter shaft to accept driving force, and described valve body is provided with the axocoel of multidiameter shaft, is communicated with by the hole between second fluid passage and the axocoel, and multidiameter shaft one end passes valve body, and the axle that the other end is supported in the valve body holds in the palm;
Described rotary spool is driven by reducing gear by drive motor.
2. a kind of valve-regulated energy recovery unit device as claimed in claim 1, it is characterized in that described axocoel is made of the center hole of valve body, the valve body bottom also connects the fixed plate that supports described axle holder at the place, aperture of center hole, is sealed by Sealing between fixed plate and the valve body.
3. a kind of valve-regulated energy recovery unit device as claimed in claim 1 or 2, it is characterized in that described rotary valve valve body is formed by connecting by two valve body unit along the axial arranged connection of rotary spool, with the Sealing sealing, each valve body unit is equipped with the first fluid passage and leads the way and connecting passage, second fluid passage and lead the way and connecting passage, the 3rd fluid passage and lead the way and connecting passage, the 4th fluid passage and lead the way and connecting passage outside rotary spool for two valve body unit.
4. a kind of valve-regulated energy recovery unit device as claimed in claim 3, it is characterized in that, this end that passes valve body with multidiameter shaft is last, the upper surface that is in the valve body unit of below is provided with the rotary spool mounting hole, described rotary spool is placed in the rotary spool mounting hole, the upper surface flush of its surface and residing valve body unit, described multidiameter shaft contains the through hole of two quadratures, described two through holes are on the axial diverse location of multidiameter shaft, the connecting pin that mandrel be used for to be installed connects the initial circumferentially angular orientation of multidiameter shaft and rotary spool and the relative valve body of position rotating spool, and rotary spool is provided with accordingly from the upper surface connecting groove of extension downwards.
5. a kind of valve-regulated energy recovery unit device as claimed in claim 1 is characterized in that, the radially employing axle sleeve location multidiameter shaft of described valve-regulated energy recovery unit device, and axle sleeve and multidiameter shaft transition fit are with the valve body interference fit; The friction pair pairing of metal and macromolecular material is all adopted in multidiameter shaft and axle sleeve, multidiameter shaft and an axle holder cooperation place, and rotary spool and cooperation between the valve body are that the friction pair between the different macromolecular materials matches; The place of passing of the corresponding multidiameter shaft of valve body is provided with at least one pair of mechanical seal, described mechanical seal includes stationary ring, rotating ring, elastic element, spring seat, stationary ring auxiliary seal ring, mechanical seal is perpendicular to the end face of multidiameter shaft, thereby stationary ring and rotating ring keep fitting and can slide and be equipped with auxiliary seal relatively under hydrodynamic pressure and spring force effect and reach the gland seal device that resistance is leaked.
6. valve-regulated energy recovery unit device, it is characterized in that it comprises many groups pressure-exchange pipe group in parallel, described pressure-exchange pipe group has two pressure-exchange pipes, and every group of pressure-exchange pipe group set the straight line guiding valve of 4 one-way valves and 1 3-position 4-way; Every each built-in free-piston of pressure-exchange pipe, and the pressure-exchange pipe is divided into two active chambers is respectively to be transferred the fluid operating chamber and energy reclaims the fluid operating chamber;
Described 4 one-way valves are split two groups, and the direction of two groups of one-way valves is opposite, and wherein one group of one-way valve is as the low-pressure fluid suction valve of energy recovery unit device; Another group one-way valve is as the high pressure outlet valve of energy recovery unit device, wherein the fluid operating chamber that is transferred of a pressure-exchange pipe links to each other with one of them high pressure outlet valve with one of them low-pressure fluid suction valve, and be transferred fluid operating chamber and another low-pressure fluid suction valve wherein of another root pressure-exchange pipe link to each other with another high pressure outlet valve wherein;
Described straight line guiding valve has 2 intake-outlets, 1 water intake, 1 drain opening, described 2 intake-outlets reclaim the fluid operating chamber with the energy of two pressure-exchange pipes respectively and are connected, described 1 water intake and energy reclaim fluid source and are connected, and described 1 drain opening is used for the waste water of exhaust energy recovery fluid operating chamber after by exchange energy; The two ends of described straight line guiding valve are respectively equipped with the control mouth,
Described valve-regulated energy recovery unit device is provided with the four-way rotary valve, described four-way rotary valve is provided with and is exclusively used in the into water intake of water, be exclusively used in the drain opening of draining and the many groups intake-outlet that equates with pressure-exchange pipe group number, every group of intake-outlet has two intake-outlets, two intake-outlets of every group mouthful are connected with two controls of the straight line guiding valve of one group of pressure-exchange pipe group wherein respectively, control described straight line guiding valve by the four-way rotary valve and periodically work in the 11st state to the 12 states, the 12nd state to the 13 states, the 13rd state to the 12 states, the 12nd state to the 11 states;
Described the 11st state is that first intake-outlet in 2 intake-outlets of straight line guiding valve is communicated with the water intake of described straight line guiding valve, and second intake-outlet is communicated with the drain opening of straight line guiding valve;
Described the 12nd state switches the state of moment for the straight line guiding valve, and 2 intake-outlets of straight line guiding valve all are communicated with the water intake of described straight line guiding valve;
Described the 13rd state is that first intake-outlet in 2 intake-outlets of straight line guiding valve is communicated with the drain opening of straight line guiding valve, and second intake-outlet is communicated with the water intake of described straight line guiding valve;
Described four-way rotary valve comprises valve body and rotary spool, and described rotary spool connects a multidiameter shaft to accept driving force;
Axial along described multidiameter shaft, described four-way rotary valve is provided with a plurality of valve bodies unit, many one of the quantity specific pressure exchange pipe group number of valve body unit, described valve body unit is divided into end unit and temporary location, described valve body is formed by connecting by described valve body unit, be provided with a described rotary spool between the adjacent valve body unit, adjacent two valve body unit seal with Sealing outside rotary spool;
Described valve body is equipped with the first fluid passage that is mated in the axial front and back of rotary spool, second fluid passage, the 3rd fluid passage, the 4th fluid passage, described first fluid passage is connected with the pilot pressure water source as described water intake with extraneous connecting port and is exclusively used in into water, second fluid passage is exclusively used in draining with the connecting port in the external world as described drain opening, the water that will flow out from the control mouth of described straight line guiding valve is discharged, the 3rd fluid passage and extraneous connecting port for the intake-outlet that the control mouth is connected of straight line guiding valve, the 4th fluid passage and the extraneous intake-outlet of connecting port for being connected with another control mouth of straight line guiding valve are the first fluid passage along circumferential the putting in order of rotary spool, the 3rd fluid passage, second fluid passage, the 4th fluid passage;
Described end unit is provided with a first fluid passage and leads the way and connecting passage, second fluid passage and lead the way and connecting passage, the 3rd fluid passage and lead the way and connecting passage, the 4th fluid passage and lead the way and connecting passage; Described leading the way is in the position corresponding with the rotary spool end face, and it is outside that described connecting passage is in the footpath of rotary spool;
Described temporary location is provided with a first fluid passage and leads the way and connecting passage, second fluid passage and lead the way and connecting passage, two the 3rd fluid passages, two the 4th fluid passages; Attaching troops to a unit respectively to the rotary spool on it and the rotary spool under it in two the 3rd fluid passages, and all has it and lead the way and connecting passage; Attaching troops to a unit respectively to the rotary spool on it and the rotary spool under it in two the 4th fluid passages, and all has it and lead the way and connecting passage; Described leading the way is in the position corresponding with the rotary spool end face, and it is outside that described connecting passage is in the footpath of rotary spool;
Leading the way on same straight line of the first fluid passage of described end unit and temporary location, leading the way on same straight line of second fluid passage, leading the way on same straight line of the 3rd fluid passage, leading the way on same straight line of the 4th fluid passage, the leading the way of the leading the way of the leading the way of first fluid passage, second fluid passage, the 3rd fluid passage, the 4th fluid passage lead the way rotary spool on circumferentially equidistant distribute and circumference at same radius on; The connecting passage of the first fluid passage of described end unit and temporary location is on same straight line, the connecting passage of second fluid passage is on same straight line, the connecting passage of the 3rd fluid passage is on same straight line, and the connecting passage of the 4th fluid passage is on same straight line;
Do not communicate between the 3rd fluid passage that the different rotary spool is attached troops to a unit, do not communicate between the 4th fluid passage that the different rotary spool is attached troops to a unit;
Rotary spool has the circular arc passing hole type fluid passage of two symmetries, the length of described two circular arc passing hole type fluid passages satisfies adjacent in the leading the way of the leading the way of the leading the way of the leading the way of the first fluid passage can connect described end unit and temporary location, second fluid passage, the 3rd fluid passage, the 4th fluid passage two leads the way, and the spacing of described two circular arc passing hole type fluid passages satisfies can make leading the way simultaneously of the leading the way of first fluid passage, second fluid passage be in closed condition with the leading the way of the 3rd fluid passage, leading the way of the 4th fluid passage; There is phase difference in the circular arc passing hole type fluid passage of each rotary spool, makes each rotary spool poor corresponding blanking time operation cycle;
Described valve body is provided with the axocoel of multidiameter shaft, is communicated with by the hole between second fluid passage of described end unit and temporary location and the axocoel, and multidiameter shaft one end passes valve body, and the axle that the other end is supported in the valve body holds in the palm;
Described rotary spool is driven by reducing gear by drive motor.
7. a kind of valve-regulated energy recovery unit device as claimed in claim 6, it is characterized in that described axocoel is made of the center hole of valve body, the valve body bottom also connects the fixed plate that supports described axle holder at the place, aperture of center hole, is sealed by Sealing between fixed plate and the valve body.
8. as claim 6 or 7 described a kind of valve-regulated energy recovery unit devices, it is characterized in that, this end that passes valve body with multidiameter shaft is last, the upper surface that is in the valve body unit of below is provided with the rotary spool mounting hole, described rotary spool is placed in the rotary spool mounting hole, the upper surface flush of its surface and residing valve body unit, described multidiameter shaft contains the through hole of two quadratures, described two through holes are on the axial diverse location of multidiameter shaft, the connecting pin that mandrel be used for to be installed connects the initial circumferentially angular orientation of multidiameter shaft and rotary spool and the relative valve body of position rotating spool, and rotary spool is provided with accordingly from the upper surface connecting groove of extension downwards.
9. a kind of valve-regulated energy recovery unit device as claimed in claim 6 is characterized in that, the radially employing axle sleeve location multidiameter shaft of described valve-regulated energy recovery unit device, and axle sleeve and multidiameter shaft transition fit are with the valve body interference fit; The friction pair pairing of metal and macromolecular material is all adopted in multidiameter shaft and axle sleeve, multidiameter shaft and an axle holder cooperation place, and rotary spool and cooperation between the valve body are that the friction pair between the different macromolecular materials matches; The place of passing of the corresponding multidiameter shaft of valve body is provided with at least one pair of mechanical seal, described mechanical seal includes stationary ring, rotating ring, elastic element, spring seat, stationary ring auxiliary seal ring, mechanical seal is perpendicular to the end face of multidiameter shaft, thereby stationary ring and rotating ring keep fitting and can slide and be equipped with auxiliary seal relatively under hydrodynamic pressure and spring force effect and reach the gland seal device that resistance is leaked.
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| CN 201110410950 CN102442716B (en) | 2011-12-09 | 2011-12-09 | Valve control type energy recovery unit device |
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| CN 201110410950 CN102442716B (en) | 2011-12-09 | 2011-12-09 | Valve control type energy recovery unit device |
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|---|---|---|---|---|
| CN102815766B (en) * | 2012-09-03 | 2013-11-06 | 北京工业大学 | Liquid pressure energy recovery device based on full rotation valves |
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