CN203229405U - Gas-liquid transmission system taking compressed air as power, and seawater desalination system - Google Patents
Gas-liquid transmission system taking compressed air as power, and seawater desalination system Download PDFInfo
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- CN203229405U CN203229405U CN2013201031718U CN201320103171U CN203229405U CN 203229405 U CN203229405 U CN 203229405U CN 2013201031718 U CN2013201031718 U CN 2013201031718U CN 201320103171 U CN201320103171 U CN 201320103171U CN 203229405 U CN203229405 U CN 203229405U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A20/131—Reverse-osmosis
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Abstract
The utility model relates to a gas-liquid transmission system taking compressed air as a power, and a seawater desalination system. The seawater desalination system comprises a high-pressure gas sending system, the gas-liquid transmission system, a seawater supply system, a control system and a reverse osmosis membrane seawater desalination system, wherein the high-pressure gas sending system is used for supplying high-pressure gas; the gas-liquid transmission system comprises two gas-liquid transmission tanks which are respectively provided with a gas inlet valve, a gas exhaust valve, a water inlet valve and a water drainage valve capable of being opened/closed; the a seawater supply system is used for supplementing seawater to the gas-liquid transmission tanks; the control system can enable the second gas-liquid transmission tank to exhaust internal high-pressure gas and receive the seawater supplied by the seawater supply system while the first gas-liquid transmission tank receives the high-pressure gas and drains the seawater by virtue of the high-pressure gas, or performing reversely; the reverse osmosis membrane seawater desalination system is used for performing reverse osmosis seawater desalination by virtue of the seawater drained by the gas-liquid transmission tanks under the action of the high-pressure gas; the pressure of the high-pressure gas is at least used as osmosis pressure of the reverse osmosis membrane seawater desalination system.
Description
Technical field
The utility model relates to a kind of method and system of sea water desaltination/water treatment, relates in particular to the method and system of reverse osmosis seawater desalting/water treatment.
Background technology
In water treatment or desalination technology, reverse osmosis method is simple with its equipment, be easy to safeguard and the advantage of EM equipment moduleization dominates the market rapidly, and reverse osmosis method is not only applicable to sea water desaltination, is suitable for brackish water desalination yet.The characteristics of reverse osmosis membrane separation are that its " wide spectrum " separates, be that it not only can remove various ions in the water, and can remove the particulate bigger than ion, as most organism, colloid, virus, bacterium, suspended substance etc., so the reverse osmosis isolation method has the title of wide spectrum partition method again.
Owing to be pressure in the impellent of reverse osmosis process, undergoing phase transition not in the process, reverse osmosis membrane only plays a part " screening ", so the required energy consumption of reverse osmosis isolation process is relatively low.In the method for existing seawater and brackish water desalination, reverse osmosis method is the most energy-conservation, produces the fresh water of equal quality, and its energy consumption only is 1/40 of distillation method.Therefore, since 1974, developed country in the world is all with the main flow research direction of reverse osmosis method as sea water desaltination.It is reported that the share of market that reverse osmosis method sea water desaltination is at present handled is with a wide range of applications up to about 40%.
In at present traditional reverse osmosis water treatment unit, all adopt high-pressure hydraulic pump to produce the necessary pushed at high pressure power of counter osmosis, to keep the continuous operation of High-Pressure Water.
In service in reverse osmosis, because the drag effect of permeable membrane, the speed of current is very slow, flow is very little, so water pump almost is in all the time under " vexed car " state and moves, and consumes lot of energy, but because flow is little, so useful work seldom, and efficient is extremely low.Although it is the most energy-conservation that reverse osmosis method is compared with the method for other sea water desaltinations, but the current consumption of production unit fresh water is still very huge, in large-scale sea water desaltination engineering, the current consumption of water per ton is about 3kwh, the current consumption of middle-size and small-size sea water desalinating plant is then up to 6kwh, be that the small-sized sea water desaltination treatment facility that produces 150 tons of fresh water every day is example with an output: seawater desalination system adopts high-pressure hydraulic pump to produce pressure, required pump power adds up to more than the 50kw, and fresh water consumed power per ton is up to 7kwh/t.
Because above-mentioned traditional method for desalting seawater need consume a large amount of electric energy, thereby has limited the development of sea water desaltination industry, be difficult to alleviate by the method for sea water desaltination the fresh water crisis of growing tension.
The utility model content
It is that process for desalinating seawater and system are sent in the change of power with pressurized air that the purpose of this utility model is to provide a kind of, is intended to reduce the energy expenditure of sea water desaltination.
Be that the gas-liquid of power becomes and send method for desalting seawater with pressurized air, it comprises:
Step a is stored into gas-holder with air pressurized;
Step b adds the gas of gas-holder again and to be pressed into the high pressure gas that pressure is not less than the reverse osmosis membrane seepage water pressure;
Step c, two gas-liquids changes can carrying out exhaust water inlet or air inlet draining are set send jar, described air inlet draining refers to allow described high pressure gas to enter the seawater discharge that the phase strain is sent jar and change sent jar inside, described exhaust water inlet refers to discharge the phase strain and send jar gas inside pressure to send jar outside seawater to send to enter under jar inside and outside differential pressure effect to become in change and send in the jar to allow change, two gas-liquids are become send jar to be in such state, first gas-liquid wherein becomes when sending the canister incoming gas draining, second gas-liquid wherein becomes send a jar exhaust water inlet, perhaps second gas-liquid becomes when sending the canister incoming gas draining, and first gas-liquid becomes send a jar exhaust water inlet; And
Steps d, constantly circulation step c becomes a seawater that send jar to discharge with gas-liquid and is sent to reverse osmosis unit input seawater, desalinates.
Described gas-liquid becomes send method for desalting seawater, wherein, described gas-liquid is become send jar to be immersed among the seawater, send jar to finish the into process of water automatically under the static pressure effect of seawater so that gas-liquid becomes.
Described gas-liquid becomes send method for desalting seawater, wherein, send jar to be arranged on the land described gas-liquid change, and the seawater that utilizes water pump to provide is finished into water process.
Be that the gas-liquid of power becomes and send seawater desalination system to comprise with pressurized air
The high pressure gas transmitting system is used for the supply high pressure gas;
The gas-liquid transmitting system comprise that two gas-liquids become to send jar, but each gas-liquid becomes intake valve, vent valve, water intaking valve and a water discharge valve that send jar to dispose On/Off;
The seawater make up system is used for sending a jar additional seawater to described gas-liquid change;
Controlling System, couple with each intake valve, vent valve, water intaking valve and water discharge valve, so that two gas-liquids become when sending jar first gas-liquid change wherein to send jar described high pressure gas of reception and utilize high pressure gas to discharge seawater, second gas-liquid wherein becomes the seawater that send jar described high pressure gas of its inside of discharging and receive described seawater make up system supply, perhaps second gas-liquid becomes when sending jar described high pressure gas of reception and utilizing high pressure gas to discharge seawater, and first gas-liquid becomes to be sent jar described high pressure gas of its inside of discharging and receive the seawater that described seawater make up system is supplied; And
The reverse osmosis membrane seawater desalination system utilizes described gas-liquid to become the seawater that send jar to discharge under the high pressure gas effect and carries out the reverse osmosis method sea water desaltination, and the pressure of described high pressure gas is at least the seepage water pressure of reverse osmosis membrane seawater desalination system.
Described gas-liquid becomes send seawater desalination system, wherein, described high pressure gas transmitting system comprises air engine, gas-holder and topping-up pump, and air engine is imported gas-holder with air pressurized, air in the gas-holder enters into topping-up pump by pipeline, is pressurised into high pressure gas by topping-up pump.
Described gas-liquid becomes send seawater desalination system, and wherein, two gas-liquids become send the intake valve of jar to be provided by a T-valve.
Described gas-liquid becomes send seawater desalination system, and wherein, two gas-liquids become send the vent valve of jar to be provided by a T-valve.
Described gas-liquid becomes send seawater desalination system, and wherein, two gas-liquids become send jar intake valve, vent valve, water intaking valve and the water discharge valve of configuration to be provided by a four-way valve.
Described gas-liquid becomes send seawater desalination system, and wherein, two gas-liquids become send jar intake valve, vent valve, water intaking valve and the water discharge valve of configuration to be independent valve, and the closure or openness action of each valve is realized by the program of Controlling System respectively.
Described gas-liquid becomes send seawater desalination system, wherein, this gas-liquid becomes send seawater desalination system to comprise multistage described gas-liquid transmitting system, gas-liquid transmitting systems at different levels independently couple the reverse osmosis membrane seawater desalination system respectively so that discharge seawater to the reverse osmosis membrane seawater desalination system that couples separately separately and desalinate, and the gas-liquid of back one-level gas-liquid transmitting system becomes the dense water that send jar with the reverse osmosis membrane seawater desalination system discharge of previous stage gas-liquid transmitting system correspondence into replenishing as seawater.
Described gas-liquid becomes send seawater desalination system, and wherein, the gas-liquid of described gas-liquid transmitting system becomes send jar to be immersed among the seawater, and described seawater make up system comprises the filtration unit of marine setting.
Described gas-liquid becomes send seawater desalination system, and wherein, described gas-liquid transmitting system is installed in the land, and described seawater make up system comprises to the gas-liquid change send jar that the water pump of seawater is provided.
Described gas-liquid becomes send seawater desalination system, and wherein, it is to transmit the pressure realization by direct contact or by piston or air bag that described gas-liquid becomes the interaction of sending between high pressure gas described in the jar and the seawater.
Described gas-liquid becomes send seawater desalination system, and wherein, described gas-liquid change is sent liquid level sensor is installed in the jar, liquid level information is sent to Controlling System, the control drain tap is closed when liquid level surpasses upper limit, and when liquid level was lower than lower limit, the control air intake valve was closed; Gas-liquid becomes send jar to be mounted with flow sensor to the outlet conduit of reverse osmosis membrane seawater desalination system, the flow information of water liquid is sent to Controlling System, according to the switching frequency of controlling each inlet and outlet valve with the variation of discharge, when flow is zero, each drain tap is closed.
The gas-liquid transmitting system that with pressurized air is power comprises
The high pressure gas transmitting system is used for the supply high pressure gas;
The gas-liquid transmitting system comprise that two gas-liquids become to send jar, but each gas-liquid becomes intake valve, vent valve, water intaking valve and a water discharge valve that send jar to dispose On/Off;
The seawater make up system is used for sending a jar additional seawater to described gas-liquid change; And
Controlling System, couple with each intake valve, vent valve, water intaking valve and water discharge valve, so that two gas-liquids become when sending jar first gas-liquid change wherein to send jar described high pressure gas of reception and utilize high pressure gas to discharge seawater, second gas-liquid wherein becomes the seawater that send jar described high pressure gas of its inside of discharging and receive described seawater make up system supply, perhaps second gas-liquid becomes when sending jar described high pressure gas of reception and utilizing high pressure gas to discharge seawater, and first gas-liquid becomes to be sent jar described high pressure gas of its inside of discharging and receive the seawater that described seawater make up system is supplied.
In the application example of sea water desaltination processing or water treatment, the output terminal of gas-liquid transmitting system is connected with the front end of water treatment system (feed-water end), substitute the high-pressure hydraulic pump in the legacy system, provide continuous, the stable pending former water of high pressure to water treatment system, the energy of system consumption then reduces significantly than water pump system, obtains obvious energy-saving effect.
Aforementioned purpose of the present utility model, feature and technique effect are with accompanying drawings and embodiment are described in detail in the back.
Description of drawings
Fig. 1 is that method reverse osmosis seawater desalting treatment system synoptic diagram (water inlet automatically) is sent in the change of deep water installation gas-liquid.
Fig. 2 is that the iris type gas-liquid becomes structure and the operation logic figure (water inlet of A jar pressurization B jar) that send device.
Fig. 3 is that apparatus structure and operation logic figure (water inlet of B jar pressurization A jar) are sent in the change of iris type gas-liquid.
Fig. 4 is the operation logic synoptic diagram of water pump under the pump water condition.
Fig. 5-a is the operation logic figure of water pump under super lift operating mode.
Fig. 5-b is the operation logic figure of gas-liquid transmitting system under super lift operating mode.
Fig. 6 is that water pump is being used as the operation logic figure that improves under hydraulic pressure and the low flow state.
Fig. 7 is two closed tin intake valves of T-valve synchronization control, exhaust structure synoptic diagram.
Fig. 8 is two closed tin intake valves of four-way valve synchronization control, exhaust structure synoptic diagram.
Fig. 8 a is the pressurization of four-way valve control A canister incoming gas, B jar exhaust release (plunger rod moves right) state graph.
Fig. 8 b is four-way valve control A jar exhaust release, B canister incoming gas pressurization (plunger rod is to moving to left) state graph.
Fig. 9 is that method reverse osmosis seawater desalting treatment system figure is sent in land installation gas-liquid change (water pump water supply).
The sealed can synoptic diagram of Figure 10 rodless piston structure.
The sealed can synoptic diagram of Figure 11 airbag structure.
Figure 12 multi-stage gas-liquid transmitting system seawater desalination system synoptic diagram.
The spherical sealed can synoptic diagram of Figure 13.
Embodiment
In aftermentioned embodiment, aftermentioned seawater desalination system or method do not really want Application Areas of the present utility model is defined as the desalination processing of seawater, the desalination that also is fit to other fluids is handled, for example to the processing of brackish water, all be the applicable scope of the utility model as long as be suitable for the water treatment of reverse osmosis membrane, certainly, be that the gas-liquid transmitting system of power is not limited to water treatment with pressurized air, field that can other any appropriate." seawater " mentioned among the aftermentioned embodiment is not limited to big water in the sea, can be that other phase quasi-fluids are its equivalent.
Before describing embodiment of the present utility model, carry high pressure water to carry the energy-saving principle of high pressure water to carry out brief description than water pump to the gas-liquid transmitting system.
1, gas-liquid transmitting system and water pump transmit the principle of work contrast of high pressure water
Fig. 4 is the fundamental diagram of water pump,
Efficiency calculation formula according to impeller pump: N=Q * H/102 * η,
Can extrapolate pump efficiency η=Q * H/102 * N
In the formula: N: pump shaft power
Q: water pump feed flow
H: water pump dehvery lift
η: water pump transport efficiency
By following formula as seen, under the constant situation of pump power, lift, the water pump output flow is directly proportional with pump efficiency, that is to say: under the normal situation of output flow, water pump can reach the efficient of standard code; But work (as shown in Figure 6) under the improper situation that the water pump output flow reduces, pump efficiency will descend with the decline of flow.
In the reverse osmosis method water treatment system, water pump is used to improve the usefulness of hydraulic pressure, and flow then descends significantly, is equivalent to working order shown in Figure 6.Be that 150 tons/day sea water desalinating plant is example with fresh water yield, pump power is 50kw, and the hydraulic pressure of reverse osmosis membrane front end is risen to 60kg/cm
2More than, but raw water flow only is 20 tons/hour, far below water pump works better flow, causes water pump to be under the inefficient state and moves.
Fig. 5 a is the limiting case of pump working: the lift of establishing water pump is L, if the height of water pipe surpasses L, even then water pump oepration at full load, water column also can only rest on the height of L, can not overflow the mouth of pipe, because flow is zero, so do not produce effective work done, but this moment, water pump still must keep normal operation just can make water column maintain the height of L, in case switch off the pump, water column falls after rise immediately, therefore, under this state, the efficient of water pump is almost nil.
Fig. 5 b is the fundamental diagram of gas-liquid transmitting system, open air compressor machine, under the pressure effect of air, water column can rise to the height of L, it is constant to keep-up pressure, then water can not overflow the mouth of pipe, owing to do not have flow, so do not produce effective work done, but this moment air pressure and water column weight balancing, can make water column maintain the height of L, even close air pump, water column can not fall after rise yet, therefore, under this state, the energy consumption of gas-liquid transmitting system is almost nil, and visible gas-liquid transmitting system is worked under the low discharge state and can not be influenced the efficient of system.
In the gas-liquid transmitting system, the pressure of former water is provided by pressurized air, only consumed energy improves air pressure when original state, reach after the balance namely no longer consumed energy, and the whole service process is to carry out, and can not produce the leakage of gas in enclosed environment, so the consumption of gas is suitable with the flow of liquid, system's required drive only needs the consumption of make-up gas flow, and therefore, the power consumption of total system can descend significantly.
Be example with the small-sized sea water desaltination treatment facility that produces 150 tons of fresh water every day still: system's Central Plains water required pressure is 60kg/cm
2, flow is 20 tons/hour, becomes in gas-liquid of the present utility model and send in the device, only needing pressure is 60kg/cm
2, flow is 20M
3/ hour pressurized air can realize, be the power of 7.5kw and the pressurized air that meets above-mentioned flow and pressure requirement only needs power, can make the power consumption of fresh water per ton be reduced to 2kwh/t.Thereby produced significantly energy-saving effect.
2, the gas-liquid transmitting system becomes the principle of work of sending high pressure water continuously
Shown in Fig. 5 b, gas-liquid becomes to be sent and must could realize in the container of sealing, and the volume of closed container is limited, after the water in the container is all discharged, High-Pressure Water in the system will interrupt, if and reverse osmosis unit can not obtain the former water of the high pressure of pressure-stabilisation, will cause the water treatment system cisco unity malfunction, also can't drop into practical application even energy-saving effect is good again.Therefore, the continuous operation of the former water of realization high pressure is the key problem in technology of gas-liquid transmitting system.
The present high-pressure hydraulic pump hydrotechny that adopts, though the energy consumption height, perfect solution the former water of the high pressure problem of transporting continuously, this is the major cause that existing water treatment system extensively adopts water pump.
Utilize one group of pipeline among the utility model embodiment described later, valve and valve control system, the airtight tank body of two or more gas-liquids (also claim gas-liquid to become and send jar) is organically contacted among a system, make the inflation in each airtight tank body send water (or air inlet draining) and exhaust moisturizing (exhaust of perhaps intaking) to move the method that hockets by the ordered control to each valve, can realize the stable of High-Pressure Water, transmit continuously, the gas-liquid transmitting system is applied in sea water desaltination and water treatment system becomes possibility, also make the sea water desaltination engineering energy-conservation possibility that becomes significantly, have the significant social economic benefit.
In the embodiment shown in fig. 1, be that the gas-liquid of power becomes and to send a system element of seawater desalination system by constituting with the lower section with pressurized air.
1, high pressure gas transmitting system:
As shown in Figure 1, the source of the gas of system enters gas-holder (or pressure-pot) 1 by air engine 28 with air pressurized from air, with (8 kilograms/cm of low pressure
2About) pressurized air 2 is stored in the pressure-pot 1.Enter topping-up pump (perhaps supercharging device) 34 by master control valve 3, by reverse osmosis membrane processing need be with air pressure height to 60 kilogram/cm
2(or more than), high-pressure air send the intake valve of jar to be connected by pipeline and the change of each gas-liquid.Gas-liquid becomes intake valve 4, the gas-liquid send jar A and becomes the intake valve 7 that send jar B and be connected in parallel with inlet manifold 36, if gas-liquid becomes the quantity sent jar into more than two, then other gas-liquids become the intake valve that send jar also with inlet manifold's 36 parallel connections.
2, gas-liquid transmitting system
As Fig. 1, Fig. 2, Fig. 3, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, shown in Figure 13, the gas-liquid transmitting system constitutes (can system 22 by two or more gas-liquid transmitting systems, 29 etc.), each gas-liquid transmitting system comprises airtight gas-liquid tank body A, B(be gas-liquid become send jar) and be installed in intake valve (4 on the tank body respectively, 7), vent valve (5,6), exhaust main valve 30, water intaking valve (18,15), water discharge valve (16,17), be installed in the liquid level sensor (31 in the high-pressure gas-liquid tank body, 32), the water outlet main valve 12 that is installed in the flow sensor 33 in the rising pipe and is installed in the water side.
3, reverse osmosis membrane sea water desaltination or water treatment system
As shown in Figure 1, sea water desaltination or water treatment system are made of reverse osmosis treatment system 8.
4, seawater or former water make up system
As shown in Figure 1, gas-liquid becomes send a jar A, B to be installed in certain depth under water, and is filtered by filtering net 20.When vent valve (5,6), when exhaust main valve 30 is opened, because the effect of deep-water pressure, seawater enters the gas-liquid change automatically by water intaking valve (18,15) and send jar, finishes system's feedwater.
As Fig. 1, shown in Figure 9, gas-liquid becomes send a jar A, B to be installed in the land, then drawn water by water pump, by sending a jar A, B to supply water to the gas-liquid change behind the pretreater, when vent valve 5,6, when exhaust main valve 30 is opened, because the effect of water-aspirator pressure, seawater enters the gas-liquid change by water intaking valve 18,15 and send jar, finishes system's feedwater.
5, valve switch Controlling System
Shown in Fig. 1～13, the operation of gas-liquid transmitting system is to be installed in each gas-liquid change by 35 pairs of PLC Controlling System to send the ordered control of the open and close state of the inlet and outlet valve on the jar to realize.PLC Controlling System 35 also can be other system, for example is industrial computer, perhaps the embedded system of micro-chip formation.
Concrete operation logic
1, the operation logic of gas-liquid transmitting system
In conjunction with Fig. 1～13, described gas-liquid of the present utility model becomes send the method reverse osmosis seawater desalting method to comprise a plurality of steps, and this step will be to repeat in the cycle with the period of change of air intake valve and drain tap on off state.
As shown in Figure 1, the source of the gas of system is from air, by air engine 28 with (8～10 kilograms/cm of low pressure
2) pressurized air 2 is stored in the pressure-pot 1.Enter topping-up pump 34 by master control valve 3.According to the rate of supercharging (example: rate of supercharging is 1:10) of topping-up pump, the air pressure of output terminal will increase to 80～100 kilograms/cm
2(or more than).
As Fig. 1, Fig. 2, shown in Figure 3, intake valve 4, intake valve 7 are parallel to inlet manifold 36.Control respectively by the PLC controller Combination Control of T-valve, multiport valve (or by), the on off state that can realize intake valve 4, intake valve 7 keeps opposite forever, if that is: intake valve 7 is opened, then intake valve 4 must cut out, vice versa, if intake valve 4 is opened, then intake valve 7 must cut out.
Meanwhile, the also control respectively by the PLC controller of vent valve 5 and vent valve 6 (or Combination Control of T-valve, the multiport valve) open and-shut mode reverse with corresponding intake valve maintenance, if that is: intake valve 7 is opened, then corresponding vent valve 6 must be closed, vice versa, if intake valve 4 is opened, then corresponding vent valve 5 must be closed, guaranteed that on same tank body what inlet and outlet were moved carries out in order.
As Fig. 1, Fig. 2, shown in Figure 3, it all is check valve that inlet valve (18,15) and the flowing water Valve (16,17) of jar are sent in the gas-liquid change.Wherein the flap (or ball) of inlet valve (18,15) is opened in jar, and closed outside jar, the flap (or ball) of flowing water Valve (16,17) is then opened outside jar, and is closed in the jar.Therefore under pressurized state, the high pressure water among closed tin A, the B can only flow out from flowing water Valve, and can not flow out from water intaking valve; Equally, under the exhaust depressurization phase, closed tin A, B are low-pressure state, high pressure water water in the rising pipe 37 can not be back in the closed tin by outlet valve, and the outer hydraulic pressure of closed tin is higher than a jar internal pressure, and seawater can enter sealed can from water intaking valve, finish the moisturizing flow process of sealed can.
Concrete operations flow process and step
Below be the gas-liquid transmitting system under the effect of controller, by two closed tin drainings of A, B, moisturizing alternate run periodically, reach to outfall sewer and become the operation steps of sending High-Pressure Water continuously:
Period 1: A jar output high pressure water, B jar supply seawater
Concrete operations: the air intake valve 4 of A jar is in opened condition, (or interlock of T-valve, multiport valve) effect because the control of PLC controller, A jar drain tap 5 must be closed at this moment, then be in high pressure conditions in the A jar, according to the principle of work of above-mentioned check valve, the water in the A jar can only be discharged from A jar outlet valve 17 under the pressure effect of high pressure gas, enter outfall sewer 37, and can not discharge by A jar water intaking valve 18.Because the A jar has certain volume, so the output of high pressure water will continue for some time t, and this time length t is directly proportional with the volume of A jar, is inversely proportional to flow.
That is: t
A=V
A/ Q
In the formula: t
AIt is the time length of output high pressure water
V
AIt is the volume of closed tin A
Q is the flow of high pressure water output
When the air intake valve 4 of A jar is opened, (or Combination Control of T-valve, multiport valve) effect because the control of PLC controller, the intake valve 7 of B jar must cut out, vent valve 6 must be opened, and then the B jar is in the exhaust depressurization phase.According to the principle of work of above-mentioned check valve, the high pressure water in the outfall sewer 37 can not be back in the B jar by the outlet valve 16 of B jar.At this moment, automatic inlet valve 15 by the B jar enters in the B jar the outer sea pressure of B jar greater than the jar internal pressure, finishes the operation of B jar supplementary feed.
Because the B jar has certain volume, so the exhaust release of B jar need continue for some time t
B1, seawater enters the B jar also will continue for some time t
B2, the total time t of B jar supply seawater
BBe evacuation time and flooding time sum, that is: t
B=t
B1+ t
B2
Flooding time t
BBe directly proportional with the volume of B jar, be inversely proportional to the flow that enters the B jar.
That is: t
B=V
B/ Q
In the formula: t
BIt is the time length that the low pressure seawater enters B jar supplementary feed
V
BIt is the volume of closed tin A, B
Q is the flow that the low pressure seawater enters the B jar
Because draining and moisturizing operating mode that A, B are two jars hocket, therefore must make high pressure water discharge time of A jar and seawater enters the time that the B jar carries out moisturizing and is consistent, the volume of A jar is necessary identical with the volume of B jar, inlet valve 15,18 and drain tap 5,6 diameter suitably is set, the flooding velocity that can make the drain discharge of A jar and B jar be consistent, thereby make the operation of A, the draining of B jar and water inlet to hocket.
Second cycle: B jar output high pressure water, A jar supply seawater
Concrete operations: after the period 1 finishes, the open and-shut mode of PLC controller automatic switchover A, B canister incoming gas valve.The air intake valve 4 of A jar is changed into closing condition by opened condition, and the air intake valve 7 of B jar is then changed into opened condition by closing condition synchronously.
(or interlock of T-valve, multiport valve) effect because the control of PLC controller, B jar drain tap 6 must be closed at this moment, then be in high pressure conditions in the B jar, principle of work according to above-mentioned check valve, water in the B jar is under the pressure effect of high pressure gas, can only discharge from B jar outlet valve 16, enter outfall sewer 37, and can not discharge by B jar water intaking valve 15.
When the air intake valve 7 of B jar is opened, (or Combination Control of T-valve, multiport valve) effect because the control of PLC controller, the intake valve 4 of A jar must cut out, vent valve 5 must be opened, and then the A jar is in the exhaust depressurization phase.According to the principle of work of above-mentioned check valve, the high pressure water in the outfall sewer 37 can not be back in the A jar by the outlet valve 17 of A jar.At this moment, the outer sea pressure of A jar enters in the A jar by A jar inlet valve 18 automatically greater than the jar internal pressure, finishes the operation of A jar supplementary feed.
Because being converted into the B jar draining of second cycle from the draining of period 1 A jar finishes synchronously automatically by the PLC controller, so the pressure in the outfall sewer can not send variation.
Under the control action kou of PLC controller, system repeats air inlet, draining, exhaust, the water inlet operation of period 1 again.
Period 4
Repeat the operation of second cycle.
In the period of motion afterwards, the constantly circulation that goes round and begins again can realize that the gas-liquid change of system is sent, and produces continuous, stable High-Pressure Water in outfall sewer, desalinates the usefulness of (or purification) processing for follow-up sea water desaltination (or water treatment) device.
Above-mentioned intake valve (4,7) switches synchronously in order with vent valve (5,6) on off state, thereby guaranteed that two gas-liquids become the state that send jar to be in alternation forever, if i.e.: A canister incoming gas pressurization water supply work, then the B jar must be intake in exhaust, and vice versa.
2, the energy-saving effect of gas-liquid transmitting system calculates
(1) produce the energy consumption calculation of the seawater desalination system of high pressure water with high-pressure hydraulic pump:
Be that the small-sized sea water desaltination treatment facility that produces 150 tons of fresh water every day is example with an output: seawater desalination system adopts high-pressure hydraulic pump to produce High-Pressure Water.The pressure of reverse osmosis unit feed-water end is 60kg/cm
2, getting the water rate is 30%, so pending high pressure sea water flow is:
Q=150 ton/0.3/ (24 * 60)=0.35 ton/minute,
According to the data that manufacturer announces, the required high-pressure hydraulic pump power of this system is 50kw, and therefore fresh water consumed power per ton is: 50kw * 24h/150 ton=8kwh/ ton.
(2) produce the seawater desalination system energy consumption calculation of high pressure water with the gas-liquid transmitting system:
Be that the small-sized sea water desaltination treatment facility that produces 150 tons of fresh water every day is example with an output equally, still: adopt the gas-liquid transmitting system to produce 60kg/cm
2High-Pressure Water.Reverse osmosis unit the water rate still be 30%, so pending high pressure sea water flow is:
Q=150 ton/0.3/24 * 60=0.35 ton/minute, amount to volume unit:
Q=0.35m
3/ minute
Principle of work according to the utility model gas-liquid transmitting system: in closed system, the flow of propelling movement liquid is suitable with the flow of consumed cabin air, so the high pressure air flow of the required consumption of native system is:
Q=0.35m
3/ minute.
As shown in Figure 1, high-pressure air is obtained after by topping-up pump 34 superchargings by low pressure air compressor 28.Selecting rate of supercharging is that can to obtain pressure be 80kg/cm for the topping-up pump of 1:10
2, flow is 0.35m
3/ minute high-pressure air can drive the work of gas-liquid variator, and with supporting low pressure air compressor 28 powers of motor of this topping-up pump only be 7.5kw, therefore adopt the consumed power of this system to be:
7.5kw * 24h/150t=1.2kwh/ ton
Institute of the topworks power consumption power of PLC computer control system and each valve event of driving is very little, presses 0.8kwh/t, and then system's total energy consumption is about the 2kwh/ ton.
(3) contrast of the energy consumption of high-pressure hydraulic pump system and gas-liquid transmitting system is calculated
Press following formula and calculate, the sea water desaltination energy consumption of high-pressure hydraulic pump system is the 8kwh/ ton, and the energy consumption of gas-liquid transmitting system is the 2kwh/ ton, so energy-saving effect is: 8kwh/2kwh%=400%
(4) intake valve, exhaust valve open off status control cycle calculate
As mentioned above, A jar, B canister incoming gas valve 4,7 and vent valve 5,6 on off state are to be realized by PLC Controlling System (or Combination Control of T-valve, multiport valve).The cycle switching time t of on off state and the flow Q of total water-supply pipe are inversely proportional to, and are directly proportional with the capacity V of A jar, B jar, that is:
t＝V/Q
In the formula: t is that on off state changes once the required time (second)
V is the volume (liter) of A jar, B jar
Q is the flow (rising/second) of outfall sewer
Still with output be every day the seawater desalination system of 150 tons of fresh water be example:
Rising pipe flow Q=0.35m
3/ minute=6 liters/second
Suppose that the volume of A, B jar gets 180 liters, then the switch time cycle once is:
T=V/Q=180 liter/6 liter/second=30 seconds
That is: operated by the PLC Controlling System, the time that the valve switch state switches once was 30 seconds.System's valve has time enough to respond the operation of this order of magnitude.
(5) securing system under the abnormal work state
Securing system constitutes by being placed in the position transducer 31 in the A jar, the position transducer 32 in the B jar, the flow sensor 33 in the outfall sewer, total air intake valve 3 and total drain tap 30.Its operating principle is as follows:
Under normal circumstances, the water level in the A jar B jar should change between upper limit sensor and lower limit sensor, and the fluctuations in discharge in the outfall sewer also should remain within certain scope.Under this normal circumstances, system is by the on off state of PLC Controlling System by certain time sequence and periodic Control intake and exhaust valve, and the assurance system normally moves.
But no matter owing to any reason, following situation occurs, namely belong to abnormal running:
1) water level in the A jar B jar is higher than the upper limit sensor, is lower than the lower limit sensor
2) the fluctuations in discharge scope in the outfall sewer 37 surpasses the scope of setting
Above-mentioned state will by position transducer 32,31 and flow sensor 33 send to the PLC Controlling System, the PLC controller will send instruction closes total drain tap 30 and total air intake valve 3, because total inlet and outlet valve closes, then A jar, B jar namely stop gas-liquid at once and become the operation of sending, wait for that maintenance handles, and be unlikely to produce to rising pipe exhaust or the improper situation that sluices from vapor pipe.
(6) gas-liquid becomes the water inlet system that send device
According to different working conditionss and requirement, gas-liquid becomes send the water inlet system of device can comprise following different methods:
1) as shown in Figure 1, gas-liquid becomes send device to be installed in apart from the position of sea certain depth, has 20 pairs of seawater of filtering net tentatively to filter outward.When A jar 23, when B jar 29 alternately is in the exhaust depressurization phase, a jar internal pressure drops to 1 normal atmosphere, and seawater alternately enters A jar, B jar from inlet valve 18,15 under the effect of deep water pressure, finish seawater supply flow process.This method can be saved water reservoir or low-pressure pump, and the automatic supply of seawater has remarkable energy saving effect, but intake pressure will be influenced by sea hydrology states such as wave, morning and evening tides, and intake pressure fluctuation degree is bigger, and system should increase stable-pressure device when adopting this method.
2) as shown in Figure 9, gas-liquid becomes send device to be installed on the bank in fixed position or the cabin, naval vessel, draws water from marine with low-pressure pump, becomes with gas-liquid by sea water preprocessing device 50 backs and send the inlet valve 18,15 of device to be connected, to hang down hydraulic pressure (as 2～3kg/cm
2) to system water supply.When A jar 23, when B jar 29 alternately is in the exhaust depressurization phase, jar internal pressure descends, and when the jar internal pressure drops to when being lower than the water pump transfer pressure, inlet valve 18,15 is opened automatically, and seawater alternate enters A jar, B jar, finishes seawater supply flow process.This method can avoid sea hydrology state to the influence of system, and intake pressure can be regulated as required, pressure-stabilisation.Because in this scheme, needing with water pump is system's feedwater, the about 7kw of pump power, so energy-saving effect is a little less than scheme 1.But because of in this scheme, the effect of water pump is the fluming water source, and does not make the usefulness of supercharging, so water pump is worked in the characteristic zone of normal efficiency, required motor power and power consumption are all much lower than high-pressure hydraulic pump system.Still the system with 150 tons of daily output fresh water is example, and the pressure of water pump output is 3～5kg/cm
2, flow is 0.35m
3/ minute, power demand is 7kw, adds to produce compressed-air actuated 7.5kw, and overall power is 15kw, and system compares with high-pressure hydraulic pump, and energy consumption decline 50/15=333% is so still have obvious energy-saving effect.
(7) different structure designs of intake and exhaust valve
As mentioned above, gas-liquid that the utility model provides becomes that to send method be by to intake valve 4,7, and the ordered control of vent valve 5,6 unlatching and closure state realizes.The control of inlet and outlet threshold switch state can realize by diverse ways and device as required, mainly comprise following method:
1) separate valve is controlled method respectively
As shown in Figure 1, air intake valve 4, air intake valve 7, drain tap 5, drain tap 6 are mutual independent valve (can be magnetic valve, pneumavalve, electromechanical valve etc.), the PLC Controlling System is connected with the topworks of each valve respectively, each valve is accepted the modification of order on off state separately of PLC, and responsiveness and the period of change of each valve are controlled by computer program.
2) threeway combined valve interlock control method
As shown in Figure 7, because system requirements A canister incoming gas valve 4 must keep reverse with the on off state of B canister incoming gas valve 7, therefore can adopt a three-way valve to substitute air intake valve 4 and air intake valve 7, T-valve guarantees that from structure the on off state of two output terminals is reverse, so can simplify the sequence of control of PLC controller.
Equally, because system requirements A jar drain tap 5 must keep reverse with the on off state of B jar drain tap 6, therefore also can adopt a three-way valve to substitute drain tap 5 and drain tap 6, T-valve guarantees that from structure the on off state of two output terminals is reverse, so can simplify the sequence of control of PLC controller.
And the switch motion of two groups of T-valve is still controlled by PLC Controlling System follow procedure, assurance makes intake valve, the vent valve on same jar be reverse on off state (that is: when A canister incoming gas valve 4 is opened, A jar vent valve 5 is in closing condition: when B canister incoming gas valve 7 was opened, B jar vent valve 6 was in closing condition)
3) four-way combined valve interlock control method
As shown in Figure 8, because under the situation of works better, be installed in the A jar, each intake valve on the B jar, the logical relation of the on off state of vent valve is changeless, therefore can make the four-way valve 60 shown in Fig. 8 a, 8 holes are arranged on the valve body 60-1, relative (k1-k5 in twos, k2-k6, k3-k7, k4-k8), unimpeded or the blocked state of two through hole is controlled by the gap position on the plunger rod relatively, when the barbed portion of relative two holes and plunger rod 60-2 and when relative, this group hole is unimpeded, is equivalent to valve opening state, when relative two holes are relative with the non-barbed portion of plunger rod 60-2, this group hole is blocked, and is equivalent to the valve closes state
Hole k1 is connected with the inlet manifold, hole k5 and A canister incoming gas pipe coupling, and k1-hole, hole k5 is equivalent to A canister incoming gas valve 4
Hole k4 is connected with the inlet manifold, hole k8 and B canister incoming gas pipe coupling, and k4-hole, hole k8 is equivalent to B canister incoming gas valve 7
Hole k2 is connected with exhaust-gas receiver, and hole k6 is connected with A jar vapor pipe, and k2-hole, hole k6 is equivalent to A jar vent valve 5
Hole k3 is connected with exhaust-gas receiver, and hole k7 is connected with B jar vapor pipe, and k3-hole, hole k7 is equivalent to B jar vent valve 6
Plunger rod 60-2 can be by electromagnetic component 60-3(or pneumatic element, electromechanical compo) drive, move left and right in the plunger hole of valve body 60-1 realizes the operation that each valve opening is opened, closure state switches synchronously,
Period 1: shown in Fig. 8 a, the PLC Controlling System drive to be blocked bar 60-2 and is moved to the R side, this moment A canister incoming gas valve open, the vent valve closure, the A jar is in the Pressure water discharging state; Simultaneously B canister incoming gas valve closure, vent valve are open-minded, and the B jar is in release moisturizing state.
Second cycle: shown in Fig. 8 b, the PLC Controlling System drive to be blocked bar 60-2 and is moved to the L side, and this moment, A canister incoming gas valve closure, vent valve were open-minded, and the A jar switches to release moisturizing state; While B canister incoming gas valve is opened, the vent valve closure, and the B jar switches to release moisturizing state.
Period 3: under the effect of PLC Controlling System, plunger rod repeats the operation of period 1 again, switches the running status of A jar, B jar.
Under the driving effect of PLC Controlling System, plunger rod 60-2 constantly does the to-and-fro movement that goes round and begins again, can drive the gas-liquid transmitting system continuous, stable carry high pressure sea water to desalination treatment system.
(8) gas-liquid becomes the different structure that send closed tin
According to different needs and processing request, sealed can A, B in the gas-liquid transmitting system can be designed to different structure formation:
1) as Fig. 1, shown in Figure 13, sealed can A, sealed can B can be two independently tank bodies, and its shape can be spheroid, right cylinder or other shapes
2) as Fig. 2, shown in Figure 3, sealed can A, sealed can B can add median septum 21 by a tank body and be separated, and the shape of tank body can be spheroid, right cylinder or other shapes
3) if need in the treatment process high-pressure air and water separation are come, then sealed can A, sealed can B can adopt the structure of rodless piston cylinder, as shown in figure 10, high-pressure air does not directly contact with water, exert pressure to water by rodless piston, the principle of work that produces high pressure water is constant, can export high pressure water to outfall sewer equally; During the exhaust release, the pressure of piston air side reduces, and sea pressure can be passed piston greater than the jar inner air pressure to air side, and seawater enters tank body from water intaking valve, finishes the moisturizing operation,
4) if need in the treatment process high-pressure air and water separation are come, then sealed can A, sealed can B can also adopt the tank body that has airbag structure, as shown in figure 11, high-pressure air does not directly contact with water, exert pressure to water by air bag, the principle of work that produces high pressure water is constant, can export high pressure water to outfall sewer equally; During the exhaust release, the pressure of air bag air side reduces, and sea pressure can be passed air bag greater than the jar inner air pressure to air side, and seawater enters tank body from water intaking valve, finishes the moisturizing operation,
3, the series operation of multi-stage gas-liquid transmitting system
As shown in figure 12, but the multi-stage gas-liquid transmitting system that the utility model relates to and series operation, the inferior high density seawater 65 of above first-stage reverse osmosis treatment system 62 dischargings is as raw material, enter the change of next stage gas-liquid and send device 67, under the effect of second stage topping-up pump 66, inferior high density salt solution input next stage reverse osmosis membrane 68 is carried out second stage sea water desaltination handle.Two-pass reverse osmosis film 68 is in output secondary fresh water 69, give off the higher secondary high density salt solution 70 of concentration again, if needed, also can the connect third stage or more multistage gas-liquid transmitting system carries out multistage reverse osmosis seawater desalting and handles, import evaporating pot again after improving the concentration of discharging salt solution to greatest extent, can form crystal salt by evaporation process and reclaim.Thereby realize not having the reverse osmosis seawater desalting processing of discharging.
Because the concentration of capacity of outlet water, efficient and the pending former water of reverse osmosis membrane is closely related, when the concentration of pending former water increased, the input pressure that needs to improve former water could be handled out fresh water, and concentration pressure more high, that need is bigger.For example: when pending former water was common seawater 25, required input hydraulic pressure was about 50～60kg/cm
2, when the former water of input be inferior high density seawater 65, required input hydraulic pressure was about 100～120kg/cm
2, when the former water of input was secondary high density seawater 70, required input hydraulic pressure was about 180～200kg/cm
2At present, though the reverse osmosis membrane supply that can bear high pressure is arranged, in the system that adopts traditional high-pressure hydraulic pump, improve intake pressure and will increase considerably energy consumption, and pressure is healed the high energy consumption lift velocity sooner.The operation scheme that therefore present nearly all reverse osmosis seawater desalting treatment system (comprising large-scale, medium-sized, mini-system) all can't adopt multistage reverse osmosis treatment system series connection to handle, but enter among water drain or the coastal waters after directly strong brine 65 being passed through pressure recovery, cause strong brine to pollute to the surrounding waters, havoc the eubiosis in coastal waters, even cause the salt alkaliization in seashore farmland, limited the development of sea water desaltination engineering.
But as the gas-liquid transmitting system that adopts the utility model to provide, then can make things convenient for, the energy-conservation multistage reverse osmosis seawater desalination system series operation of realization, its ultimate principle is as follows:
As shown in figure 12, the inlet pipe of second stage topping-up pump 66 is connected with the output terminal of first step topping-up pump 61, when the input air pressure of second stage topping-up pump 66 is 60kg/cm
2The time, the rate of supercharging of second stage topping-up pump 66 only needs 1:2, can obtain 120kg/cm easily
2Air pressure.Simultaneously, the water inlet pipe of secondary gas-liquid transmitting system 67 is connected with the strong brine discharge outlet 65 of first-stage reverse osmosis device 62, and then the output hydraulic pressure of secondary gas-liquid transmitter 67 can reach 120kg/cm
2
Because reverse osmosis treatment system must the water rate be 30%, so entering the flow of the water (inferior strong brine 65) of second-stage treatment compares with the flow that enters the water (that is: seawater 11) that one-level handles and has reduced 30%, so the energy consumption that the energy consumption of second-stage treatment system is also handled than one-level reduces 30%(in the gas-liquid transmitting system, the consumption of gas is directly proportional with the flow of its fluming water, flow descends 30%, so gas consumption also reduces by 30%, energy expenditure also reduces by 30%).In like manner, as carry out third stage processing, its energy consumption is also successively decreased successively.
Still the system with 150 tons of fresh water of above-mentioned daily output is example, as shown in figure 12, during the series operation of secondary gas-liquid transmitting system, compares with the one-level treatment system, and energy consumption only increases by 70%.Power consumption every day that carries out one-level sea water desaltination processing is 300kwh, obtains 150 tons of fresh water (press 500 tons/day of flows, get 30% calculating of water rate).Power consumption every day that carries out secondary desalination processing is 300kwh * 70%=210kwh, obtains 90 tons of fresh water (press 450 tons/day of flows, get 20% calculating of water rate).Then every day overall power consumption 510kwh, obtain 240 tons of fresh water total amounts, unit consumption of energy is: 510kwh/240 ton=2.2kwh/t, compare with energy consumption 2kwh/t that gas-liquid transmitting system one-level desalination is handled and to remain basically stable, slightly to rise, compare but handle energy consumption 8kwh/t with the first-stage reverse osmosis of high-pressure hydraulic pump system, still have the energy-saving effect more than 350%.
From above-mentioned analytical calculation as seen, the gas-liquid that the utility model proposes becomes send method to have obvious energy-saving effect, makes the large-scale application of multistage reverse-osmosis treated series operation become possibility.
Gas-liquid becomes the application example that send seawater desalination system
1, as marine mobile water supply station
As shown in Figure 1, the related gas-liquid of the utility model becomes send device can be installed in apart from the position of sea certain depth, and seawater is finished the seawater supply automatically under the effect of deep water pressure.Need not water reservoir and low-pressure pump supplies water, only need the small power air compressor machine drive system to move, therefore be fit to be installed in maritime floating platform, with wave energy, the tidal energy gathering device connects, or be connected with the wind collecting device, utilize natural energy resources to produce pressurized air, can drive reverse osmosis seawater desalination system work, produce fresh water continuously on (or on unmanned island) on the mobile-surface platform, become marine mobile water supply station (or water supply station, island), power by the inland need not, under the situation about supplying water, can utilize natural energy resources to solve the water supply problem on unmanned island, be conducive to development and use and the frontier sentry construction on unmanned island.
2, be used as the water supply device of ships
As shown in Figure 9, the gas-liquid that the utility model relates to becomes send device also can be installed in the cabin, naval vessel, with supplying water to native system after the low-pressure pump extracting seawater, can produce fresh water by reverse osmosis method.Compare with conventional high-tension water pump method desalination treatment system, native system power demand and energy consumption reduce more than 3 times, are particularly suitable for the requirement on naval vessel, can be widely used in all kinds of ships.
3, be used for the energy-conservation sea water desaltination engineering of pollution-free high-efficient
As shown in figure 12, but the multi-stage gas-liquid transmitting system that the utility model relates to and series operation, the inferior high density seawater 65 of above first-stage reverse osmosis treatment system 62 dischargings is as raw material, enter the change of next stage gas-liquid and send device 67, under the effect of second stage topping-up pump 66, inferior high density salt solution input next stage reverse osmosis membrane 68 is carried out second stage sea water desaltination handle.Two-pass reverse osmosis film 68 is in output secondary fresh water 69, give off the higher secondary high density salt solution 70 of concentration again, if needed, also can the connect third stage or more multistage gas-liquid transmitting system carries out multistage reverse osmosis seawater desalting and handles, after improving the concentration of discharging salt solution to greatest extent, be connected with evaporation unit, the high pressure high density is imported evaporating pot by nozzle again, can form crystal salt by evaporation process and reclaim.Thereby realize not having the reverse osmosis seawater desalting processing of discharging.
The multi-stage gas-liquid change that employing the utility model proposes send the sea water desaltination of series operation method to handle, and can be lower than under the prerequisite of conventional reverse osmosis method in energy consumption, improves fresh water yield, reclaim crystallization sea salt, realize pollution-free sea water desaltination processing, increase substantially direct economic benefit and social benefit
4, widespread use in other water treatment systems
Handle identically with sea water desaltination, allly relate to the problem that all there are a large amount of energy consumptions of water pump in the system that adopts high-pressure hydraulic pump to carry out the reverse osmosis method water treatment, for example: sewage disposal, drinking water treatment, boiler water processing etc.
The gas-liquid transmitting system that the utility model provides can be used as an independently high pressure water supply module, high-pressure hydraulic pump power system in the place of water treatment system simply and easily, under the condition that does not change existing water technology and effluent characteristics, reduce the equipment installed power, and reduce power consumption significantly, have obvious energy-saving effect.
Claims (8)
1. seawater desalination system is sent in the gas-liquid change that with pressurized air is power, it is characterized in that, comprises
The high pressure gas transmitting system is used for the supply high pressure gas;
The gas-liquid transmitting system comprise that two gas-liquids become to send jar, but each gas-liquid becomes intake valve, vent valve, water intaking valve and a water discharge valve that send jar to dispose On/Off;
The seawater make up system is used for sending a jar additional seawater to described gas-liquid change;
Controlling System, couple with each intake valve, vent valve, water intaking valve and water discharge valve, so that two gas-liquids become when sending jar first gas-liquid change wherein to send jar described high pressure gas of reception and utilize high pressure gas to discharge seawater, second gas-liquid wherein becomes the seawater that send jar described high pressure gas of its inside of discharging and receive described seawater make up system supply, perhaps second gas-liquid becomes when sending jar described high pressure gas of reception and utilizing high pressure gas to discharge seawater, and first gas-liquid becomes to be sent jar described high pressure gas of its inside of discharging and receive the seawater that described seawater make up system is supplied; And
The reverse osmosis membrane seawater desalination system utilizes described gas-liquid to become the seawater that send jar to discharge under the high pressure gas effect and carries out the reverse osmosis method sea water desaltination, and the pressure of described high pressure gas is at least the seepage water pressure of reverse osmosis membrane seawater desalination system.
2. seawater desalination system is sent in gas-liquid change as claimed in claim 1, it is characterized in that, two gas-liquids become send jar intake valve, vent valve, water intaking valve and the water discharge valve of configuration to be independent valve, or three-way valve or four way valve, and the action of each valve is realized by the program of Controlling System respectively.
3. seawater desalination system is sent in gas-liquid change as claimed in claim 1, it is characterized in that, this gas-liquid becomes send seawater desalination system to comprise multistage described gas-liquid transmitting system, gas-liquid transmitting systems at different levels independently couple the reverse osmosis membrane seawater desalination system respectively so that discharge seawater to the reverse osmosis membrane seawater desalination system that couples separately separately and desalinate, and the gas-liquid of back one-level gas-liquid transmitting system becomes the dense water that send jar with the reverse osmosis membrane seawater desalination system discharge of previous stage gas-liquid transmitting system correspondence into replenishing as seawater.
4. seawater desalination system is sent in gas-liquid change as claimed in claim 1, it is characterized in that, the gas-liquid of described gas-liquid transmitting system becomes send jar to be immersed among the seawater, and described seawater make up system comprises the filtration unit of marine setting.
5. seawater desalination system is sent in gas-liquid change as claimed in claim 1, it is characterized in that described gas-liquid transmitting system is installed in the land, and described seawater make up system comprises to the gas-liquid change send jar that the water pump of seawater is provided.
6. seawater desalination system is sent in gas-liquid change as claimed in claim 1, it is characterized in that, it is to transmit the pressure realization by direct contact or by piston or air bag that described gas-liquid becomes the interaction of sending between high pressure gas described in the jar and the seawater.
7. seawater desalination system is sent in gas-liquid change as claimed in claim 1, it is characterized in that, described gas-liquid change is sent liquid level sensor is installed in the jar, liquid level information is sent to Controlling System, the control drain tap is closed when liquid level surpasses upper limit, when liquid level was lower than lower limit, the control air intake valve was closed; Gas-liquid becomes send jar to be mounted with flow sensor to the outlet conduit of reverse osmosis membrane seawater desalination system, the flow information of water liquid is sent to Controlling System, according to the switching frequency of controlling each inlet and outlet valve with the variation of discharge, when flow is zero, each drain tap is closed.
8. be the gas-liquid transmitting system of power with pressurized air, it is characterized in that, comprise
The high pressure gas transmitting system is used for the supply high pressure gas;
The gas-liquid transmitting system comprise that two gas-liquids become to send jar, but each gas-liquid becomes intake valve, vent valve, water intaking valve and a water discharge valve that send jar to dispose On/Off;
The seawater make up system is used for sending a jar additional seawater to described gas-liquid change; And
Controlling System, couple with each intake valve, vent valve, water intaking valve and water discharge valve, so that two gas-liquids become when sending jar first gas-liquid change wherein to send jar described high pressure gas of reception and utilize high pressure gas to discharge seawater, second gas-liquid wherein becomes the seawater that send jar described high pressure gas of its inside of discharging and receive described seawater make up system supply, perhaps second gas-liquid becomes when sending jar described high pressure gas of reception and utilizing high pressure gas to discharge seawater, and first gas-liquid becomes to be sent jar described high pressure gas of its inside of discharging and receive the seawater that described seawater make up system is supplied.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103951099A (en) * | 2014-03-28 | 2014-07-30 | 宁波埃克钛能源科技有限公司 | Integrated treatment equipment for treating waste water |
| CN103979642A (en) * | 2014-05-14 | 2014-08-13 | 海南大学 | Reverse osmosis water treatment method by utilization of impact pressure of raw water accelerated by gas |
| CN104671354A (en) * | 2015-02-16 | 2015-06-03 | 集美大学 | Wave energy driven air pressure seawater desalination system |
| CN109507957A (en) * | 2017-09-15 | 2019-03-22 | 进金生实业股份有限公司 | Cloud Intelligent power saving system for water process industry |
-
2013
- 2013-03-06 CN CN2013201031718U patent/CN203229405U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103951099A (en) * | 2014-03-28 | 2014-07-30 | 宁波埃克钛能源科技有限公司 | Integrated treatment equipment for treating waste water |
| CN103951099B (en) * | 2014-03-28 | 2016-01-13 | 宁波埃克钛能源科技有限公司 | Waste water integrated treatment unit |
| CN103979642A (en) * | 2014-05-14 | 2014-08-13 | 海南大学 | Reverse osmosis water treatment method by utilization of impact pressure of raw water accelerated by gas |
| CN104671354A (en) * | 2015-02-16 | 2015-06-03 | 集美大学 | Wave energy driven air pressure seawater desalination system |
| CN109507957A (en) * | 2017-09-15 | 2019-03-22 | 进金生实业股份有限公司 | Cloud Intelligent power saving system for water process industry |
| CN109507957B (en) * | 2017-09-15 | 2022-04-01 | 进金生实业股份有限公司 | Cloud intelligent power-saving system for water treatment industry |
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