WO1985001221A1

WO1985001221A1 - Membrane separator

Info

Publication number: WO1985001221A1
Application number: PCT/JP1983/000311
Authority: WO
Inventors: Koichi Yamada; Ichiro Hiraiwa; Shin Taniguchi; Toshinari Zengo
Original assignee: Ebara Corporation
Priority date: 1983-09-19
Filing date: 1983-09-19
Publication date: 1985-03-28
Also published as: FR2551989A1; FR2551989B1

Abstract

A membrane separator wherein a substance is separated out by employing a semipermeable membrane to obtain either a dilute or a concentrated solution or both. The most economical operation of the membrane separator obtains a maximum amount of a desired liquid with minimum energy, that is, minimizing the amount of energy required per unit of obtained solution. Hitherto, minimum power is obtained at the maximum pressure corresponding to the performance of the semipermeable membrane; consequently, the energy required is not the minimum. According to the invention, there is provided a membrane separator comprising a flow rate controller provided with a control circuit for calculating the minimum necessary power at the flow rate of a dilute or concentrated solution, set according to the pump performance curve, the power-recovering means performance curve and the relationship between the concentration and osmotic pressure of a solute in the solution, wherein the power-recovering means performance curve is also taken into consideration. An embodiment of the invention is provided with a means for detecting the flow rate of a liquid supplied to the membrane separator or of a concentrated or dilute solution therefrom, and a control circuit for adjusting a pressure-regulating valve or a power-recovering means so that the value from the flow rate detecting means is coincident with the theoretical flow rate in the system. Alternately, the flow rate detecting means is provided with, as a pressure detecting means, a control circuit for adjusting the pressure-regulating valve or the power-recovering means so that the value indicated by the pressure detecting means is coincident with the pressure corresponding to the theoretical pressure in the system. The flow rate or pressure detecting means is disposed between a pump and a semipermeable membrane or in the part of a piping for concentrated solution which is on the downstream side of the semipermeable membrane.

Description

, Continue incense

Technical field

S The origin of this genera is to focus on power-saving nuclei in the decay process.

Background technology

The traditional c banquet of Huo Yi Zhi »is structured as shown in the No. 1 / aa flow chart. The dew / B is an example of seawater in the seawater / 0, which is not shown in the drawing and is unreasonable. rarely, the pump / the discharge pressure, discharge rate, discharge in the Ko麼0 _beta, through 8Ξ ChikaraiHajikamiben a be more Seimai the pressure sensing讎<2 * semipermeable membrane * Schlenk f Through the pressure leak point of the fficatosuto SJ *, enter the semi-translucent * confetti, and resist the osmotic pressure by the surface EE force. through and out sent to the water tank 4, S side, ¾ the amount of ₀ - _t- _¾, * thickened the sea water to a concentration o ₂ of-data one bottle grayed to be Kyo縿to the other one bottle 7 entrance Roh's

The key is returned by the activator J. The energy stripped by the bin is used to assist the pump motor f.

The discharge pressure of the pump / in the configuration on Jfel is usually *

* "Is a 0ifZc« ^l, in the inner semipermeable ¾ of the pump / discharge amount ¾ ₀ "T for the penetration of sea water of 2 Qu ~ * click ¾ |

f O PI -The water has penetrated the road.

As shown in the above section, the haze power of the pump / is inevitably occupying a large part of the eclipse in the perennial separation device. Power Garden

The installation of a Singaporean, for example, a Pelton turbine has been seen.

However, the driving method was to use only the sparse cut-off rate, and to minimize the shaft power of the pump / semi-transparency * with the maximum permissible inspection car.

Inventive manifestation

to As described in the background art, the conventional technology arrived only on a domestic vehicle with a dilute solution. Since the power recovered by «was not taken into account, the power consumed was not minimal.

"

In the present invention, it is assumed that the required power of the pump and the power ft of the pump are set to be the minimum in the garden in a large-scale separable storage device.

The present invention relates to a pump and a motor

効効攄攄効最も効効効最も最も最も最も最も最も最も最も最も最も最も効最も効効効効効効最も最も最も最も最も最も最も最も最も効効最も最も最も最も最も最も最も最も最も最も最も最も最も最も最も効ことこと最も最も最も最も最も最も最もIt is intended to ensure the maximum effectiveness of the equipment.

The present invention relates to a performance curve of a pump, a performance curve of a power control means, and

f OI Coordination of concentration and osmotic pressure of shenrite Dilute or fibrous irrigation solution determined using * Minimum amount of food in volume * Calculated With a

The present invention relates to a pump for pressurized excitation of a liquid, a pump and a semi-permeable membrane interposed in the piping of the IW, a semi-permeable membrane, and a semi-permeable membrane. Using a semi-permeable membrane, the quality of the liquid in the sap is obtained using the semi-permeable membrane. The minimum in the amount of dilute or hot water, determined by using the relationship between the temperature of the perfusion and the permeation of the perfusate of the water, This is a Ryujo rig with a 31-volume control system equipped with a control circuit that calculates the restaurant meal.

By calculating the minimum director power, the liquid supply volume, liquid supply pressure, trace flow volume, test liquid pressure, volume and pressure such as C at the turning point where the minimum required power is obtained are determined.調調薑園ぇ入口度度度度度度度度度度度度度度度度度度度度度度度度度度度度度度度度度度度度度度鬭 The valve stroke of the pressure ginger valve calculated only by hand counting and the turbine inlet valve are controlled so that the pressure ginger valve and the turbine are controlled so that they run with minimum required power. In order to detect the following E force or a small amount of detectors, the detection conditions of these minors must be equal to the internal pressure or the amount. Pressure

OMFI L 一勐カ園轵 Amago ginger can also be used.

The claim of the present invention is characterized in that the pump and the semi-permeable SIM piping are provided with a pressure-intensifying means or a strain-detecting means A in the claim / claim and a & box indication is calculated. A wide-spreading device equipped with a pressure regulating valve opening and a power garden hand ft to adjust the opening of the power control valve so that it is equal to the pressure in the system or the system in the system It is.

The * claim is a semi-transparent recommendation and an energizing means in claim / claim. 手段囊圧力囊圧力圧力圧力備え備え備え備え備え備え備え備え備え備え備え備え備え備え備え備え備え備え ¾ ¾ ¾ This device is equipped with a control circuit that provides a power circuit or a pressure regulating valve to make it equal.

Claims of the present application are based on the claims / claims, wherein a means for detecting the amount of the stagnant liquid is provided to the means for semi-transparent and power cultivating means M, and this scooping is calculated. This is a split crane device that conveys a control system to control the power control valve S or E.

Claims in this order are claims / claims: ¾ 希薄よりより半よりよりより值值

内 This is a separation bell device equipped with a control circuit that performs a so-called valve-regulating or several-time control so that the amount of diluent becomes equal to the volume.

The ^seventh claim is the invention according to any one of the claims / claims to which the minimum required power is calculated.

Equipped with a 2S recovery setter, within a semi-global allowable recovery rate or less And the power of dining is minimal

It is a female part of the membrane.

The main unit is the pump, the power β, and the discharge of the pump, as shown above. Calculating the point of minimum supper power within the standard of the detention system based on the census of the clan quality and the penetration of the garden «The high pressure pump that occupies the food has the effect of making it possible to reduce C.

'0 In the present invention, the force detecting means (or the collecting amount detecting means) was cultivated in the pipe of the 4r corrosive liquid in the pipe of the present invention, and the loss of the force was detected in the system. In order to obtain a pressure control valve or a power scheme, the procedure is simple.

It has the effect that you can return accurately with a fist.

Simple description of the surface cylinder

Solution / is the flow sheet for fermentation, and joy <2 »is the line 8 that explains the pressure and the amount of lipolysis in the film as it is placed. Line showing the power of the plant and the power lost

.Lambda.6 g, Fig. 4 real present invention; block diagram of M examples, FIG. 7 is a fireman's standard si showing one block of interdigital ⁴ a.

Invention M

C Here, the power control of the device for exchanging rot to young people according to the present invention will be described. Pump / shaft power, turbine f driving power, * f

OMPI one Pump power I

^ However: 7? Pump / Effectiveness

P _L1 pump / to semi-permeable membrane *

) 9ϊ However efficiency of 2? Τ Turn-pin ⁷

L ₂ semipermeable pressure loss of the pipe of up to Nyuro Roh nozzle ,, of «from * data one bottle 7

Therefore, the motor station S power L

1ι― Ιι, ichi L _F

-, Zf, + (, ¾1 "Η ^^, Ζ) + (

I> K &-ι ^ρ ιιΖ

Fig. ^ Is a horizontal line with a line S indicating the relationship between the valve loss due to the pressure return valve and the amount of dilute solution (recharge water). Is taken. Yuma A is a pump

OMFI 1 H Curve :), curves Β, Ο are £ force adjustment valve 鷉 surface force when squeezed? ! ! And «to be confined to the surface». Curve 0 is more inclusive of the so-called pressure increase than song summary Β.

Corresponding to the curves Β, Β, and σ, the retention of the dilute liquid flow rate and the surface pressure are expressed by the curves Α ', Β ·, σ ». If the epsilon force in the system is lowered by operating the force adjustment valve j, too, the turning point of the pump / changes from _{a →} u → _c → d → e → f.

→ c '→ A »→ e' → For example, pumping tt

/ 0 Summary Discharge of pump / at point 4 on A E force P ₀ and E force adjustment valve a

Difference between the ordinates of point d 'on curve G when focusing on? ₀ -: P _M is the valve EE loss due E force adjusting valve J. However, at ¾fc point *, t, pressure regulating valve << 2 is fully open and there is no valve S loss a

Here, when the flow rate of the dilute liquid is constant, the W degree of the pressure control valve と and the w of the motor station «» force I »are obtained. * Hydrogen power required to send water ^ Semi-membrane * times枳皐high :) In the film surface £ force _Ρ Μ the pump / of the box off E vicinity _(β is small again a large, pump / of efficiency car? ? Is small Α is large

When the pressure of the pump / is reduced, the decay pressure becomes smaller, and the »ratio of the pump / becomes larger, increasing the desalination power.

值 decreases. However, there is a maximum in the pump / effect car, and the pumping power is reduced in the area where the water pressure increases. ^ Increases again. The power L _{VL for} the pressure loss in the circuit is the resistance of the pressure regulating valve.

Αί Αί, ΟΜΡΙ In comparison with Kuma, the S resistance is always small. The valve pressure drop due to the E-force ginger valve depends on the pressure, but after that, there is a maximum point at the β-door, which is flagged once and then again.

Cable loss caused by the efficiency of the pump / turbine f

M _IL pump / is a composite of Kosatsuki ft line櫬霍圔有the turbines 7 respectively, the power loss at the maximum efficiency point near傪of两者

¾ 小_さ becomes smaller, the pressure is lower than the point, and i becomes large. As described above, the desalination power ½, the power L _{T¾ for} the power loss due to the _chorion , and the effect of the _pump turbine

(0 Power loss due to I ^ co-pressure

It's not a big proportion. Wakasen's << is shown in Figure J, * Arrogant, Figure r. In the figure, Yokosuke is represented by pressure and Loose is represented by »force.

In Fig. J, the feeding power I of the motor f has a large pump / discharge itE power, and the SIR vehicle is large and small.

In the * B9, the power L of the motor r is almost constant regardless of the surrounding ratio.

In the figure, the motor f has a smaller power I at the lower end of the shaft (power E), which is less power-saving.

0 As shown in Fig. J, the hydration power 高 is high in the low-low flow area and high-pressure area, and its local minimum value is located in the middle of the garden.

The power loss of the E-force in the circuit, which is lost 31 _Lt, increases with the increase of the discharge pressure of the pump / and is _extinguished . Loss due to pump / turbine ⁷ efficiency

OMPI Ι ΙΙ »is depleted« Λ, and the depletion is reduced together with the decrease in the pump EE discharge force.

Hereinafter, SRW is performed by the 488th block S of the present invention.

First, enter the amount of diluted liquid in the volume of the diluted liquid.

Ask for.

Input the permissible maximum rotation of the output from the IK set S // and input the dilute R to the flow rate of the dilute liquid from the output of the set / Minimum volume of liquid

Calculate ¾Ο «Μ = <¾Ι / ¾ΑΧ and enter the number of the pre-punched 曲曲曲 of A

Output the maximum discharge pressure mi corresponding to the liquid volume and input it to the maximum pressure calculation S / *.

"Maximum discharge pressure corresponding to this flow rate from dilute liquid flow rate

The Poiuxa is obtained. Here, the method shown in Fig. 10 is used to calculate the discharge amount ^ supplied to the membrane from the dilute liquid mm.

(1) The discharge pressure of pump / is returned. Pump discharge

If the EE method Ρ _β is determined, the pump performance curve A will be used to determine the pump / discharge rate ^.

(¾ 項目纏

From the obtained _β , it can be obtained by extinguishing, in the set child.

(3) The osmotic pressure and seawater concentration C _M The shaking of C _M is unique. Half

Liquid concentration G _M supply salary of Toru鶬is澳度C _Q of Hiroshi inlet liquid, concentrated

O PI

Treasure ⁰ O If the condensate concentration is ^, it is determined by the following formula: ^^ (Ca + ^) / ^. G _e , C _¾ does not change well. ¾ connexion Further, the spring Ura置normal邁monkey It can _beta Micromax is obtained this 91 engaging either et osmotic * regarded as Tei歡.

(4) When the seawater has a significant change in the water level, the distribution center is

Use the ink to detect the severity of the liquor in the liquid, but the constant determined by the rot of rot

Diffusion coefficient of water in / 0 ^ 囊

τ liquid

Calculate the retention Ϊ by A constant value may be used for small meals where the amount of liquid / change is small.

m Semi-permeable membrane * pressure * pressure? _M is the term

Head discharge E force of the probe · [rho from _Β to losses due conduit containing EE Chikaracho Hajikamiben a of ¾ of the supply儒配pipe to HanToruHiroshi *

¾t It is the same. Semi-transparent f's diluted capital? , Are almost constant, and the dilute solution can be considered to be constant, so that the penetration E * of the dilute solution may be constant. There road

20

Is calculated.

(® Dilute volume Λ volume is the membrane area of semipermeable membrane

~ Α _Μ ΚΔ

It is represented by 2S. Semi-permeable membrane 4 »dilute flow exceeds penetration £

f Ο? 1- The dilute i, which is degraded by the SE force える, is a first-order specific example. 1¾0AL0 calculated by the formula ω.

(7) The set and are compared. And if the difference of C is large, the term S) summer pump discharge ΑΕΡ _β

JT is specified, and then to clause (1). (7) The loop is repeated.

The difference of dlOAI.0 is! Until it becomes.

Here, as shown in the J theory, the pump / discharge ε force corresponding to the maximum lean ** amount <¾! ¾10AiO-¾1> ^

10 Rutoki re «to rather smaller than the first« boss was P ₀ constant of the, - when Ku becomes re «boss was _Σ» β is larger than the first in «boss was ρ ₀ Kusuru.

The discharge pressure of the pump / _returned in the first term in g (i) is low. (M

"CAL0 one> made when a large range鼴than re« of ¾! "To first to" much larger than the _Ρ β was _¾ β a, i _<L0 - <¾, is when it comes to <click of re-constant _Β is smaller than originally set.

m »Specified dilute liquid * volume and terms s (i) to m

^ If the needle difference, which is the difference from the calculated ^ CAL0, is within the permissible range, it is assumed that the assumed pump discharge E force is correct. When the diluent volume is determined, the pump / property curve is determined, and the degree of osmotic pressure and the degree of osmotic pressure depend on the type of irrigation fluid.

»Since the staff is also fixed, the pump / discharge power is high? The preservation of _a and the amount of diluted liquid is uniquely determined. About the above Steps 8 to m above can be omitted by weaving them as a mathematical table.

In addition, in the case of a very small amount of diluted liquid, the discharge of a double-chain pump is determined as shown in a. High E power

* Is this a flea? tHAXZ, which is? omi.

Wexing, disdaining Figure A. The output of "Dilute liquid% setting" / is input to ~ ^ number generator /. The number of S / Y / s is the amount of dilute traces of Yokouen in the seventh column, and the discharge power of the pump / is shown in Zhengyuan, _β , and represents the depth of the dilute liquid. Let the number of linings be E billion

When the volume of the dilute liquid is input, the discharge pressure of the pump /

Ρ _β ΜΑΖ2,? ₀ XXir. The maximum bomb discharge EE power ΡαΜΑχι is input to the maximum power calculator / *. The S / S power ^ HAZi is the maximum E force determined from the properties of the semi-permeable *, calculated from the pumping curve, and the pump / Is the maximum pressure determined by the pumping plane. Therefore, the maximum E force allowed as a prosthesis is the smaller of Ρ _{βΜ ΑΙ} ,,? _Β ΜΑΖ2, and the maximum pressure calculation S / # compares the E force P _0KAX , and _finds the smaller 值I'll do it. Where ^ ΟΜΑΖ

Discharge power calculation S / 4 has a pressure of a force of a maximum of £ power / *

Pressure, which is the output of number generation S, is input. And Hamasan «» | »constant" operation 1WSI N, which is set at t ⁷ is input, if e Λ

ΟΜΡΙ At MSI Semi ～： Ρ _β ΜΑΐ W (構 / ΖΜ)

? 0 W = C / Ti) C PQMAZ-^ ΟΜΧ ») + ^P 0MIJI

These calculations are performed by a multiplexer.

Entered into /. Multiplexer / f also generates output ^) ~: p, w receives pump power, and generates pump power》 / f, input E force (~: Ρ _β (8) eat吐凼amount <¾ _e = f (P ₀ pump吐凼amount to ¾ force the Tokoro鋈»force of the pump / eats seen. Then over data plant餐動force calculator a / the pump power is input,囊纏. liquid Hamasan "discharge amount of the pump / from the genus incidence» / f of the pump of饞曲lines and pump power to lambda 2 _beta is inputted ft囊纏mark澳量operation躉aa dilute solution flow 19; constant Dilute mark of input from S / * Concentrated liquid flow from volume <^: Concentrated liquid of output by calculating ¾2 = ¾β- 出力 1 , Sent to Yuhirohama **.

The BW volume ₀ of the pump / from ΛΟ is input, and the concentration of the continuation liquid, c _a = o _{ex e} /, is added to calculate the seismic surface concentration 0 _M = (0 ₀ + C _A ). Output, and input to the penetrating £ »floor generation» ai ”. The M number generator * 3 outputs« .as » _{M from the} permeation £ ^ -f (OK)) and calculates the pressure β · Input to 2. In the formula calculation 4, the continuous trace flow is calculated from the

OMPI Enter i <% i and dilute elephant X amount. ? Calculate the E-force. Then, the head loss _{管 ¾2} of the conduit from the semi-transparent sho * to the turbulent _nozzle is _calculated by the following equation. C, where ^ is a constant determined by the pipeline

Is the regulation of the pipeline

And concentrated liquid £ power-

The concentrated liquid pressure of ₀ C, which is the pressure of the liquid to be supplied to the bin 7 ¾ _{2 is} supplied to the bin 7. The turbine generation power is calculated from the continuous amount 2 input to

,? ₂ ) «Calculate and output, and input to the previously described motor

" Also.

Motor director's calculation >> J / overlooks the restaurant power of motor f and obtains the power of pump / input from the input power of pump / Then, the training power I »of the narrow motor f is sent to the minimum power calculation. Minimum power calculation · 7 is 1-,,, << 2 ··································································································································· L (i + /) Ask. Then, the motor power train L (to LI) is calculated to find the dimming 暈まで镧このこのまでまでまで勖勖ではでは求める勖求めるではBe able to pass through _β

ΟΜΡΙ The minimum power calculated by the smallest cabin calculus, pump / discharge rate ^, discharge s power? _β is the m inlet valve »Takahama

1 Yuichi ^{Ρ Μ} one 1 Τ + ^Ρ 1ι 1 »

r However, the pressure loss of the 靄靄

? 1,1 »: Pressure drop in Macau

Then ^^^ (^ / ^! ^ Is stipulated by the amount,

^J ihi7 ^^ ΐιΐ 一 ^ ny

And [Turning volume] C _T of pressure regulating valve 4 is z 'S constant

Sought is ¾ _beta in because they definite to JR, £ valve opening force adjusting valve than is required. An operation similar to C is performed, and the valve opening A _T1 is output, and the valve mechanism is exposed by a servo mechanism that does not indicate H *.

Turbin Entrance Valve Naohama Calculation >> ，, is the minimum power operation n

From the minimum power calculated at f, the concentrated solution pressure and the volume _{2 of the} concentrated liquid pressure, the amount A of the vial inlet well J is determined from the following equation.

Acceleration of gravity

It is. Kagurashi Bengou A ₇₂ Pota One bin inlet valve opening The calculation f adjusts the valve stroke of the nozzle ^ through a servo mechanism not shown.

Real; in Ni i Bence preparative o Beqa Kang A _t, the EE force adjusting valve j of凼力the back inlet valve Akirado Hama San讎4 t of the Figure - was adjusted by the motor s servomechanism But the pressure as the first / H

The E-force regulating valve a may be returned by the SE force lateral ffi »2» so that the force at the determination point matches the calculation.

The H it l a 4 ¾ of turbines inlet valve opening Hama calculated valve »degree A _{T a} by motor one bottle inlet nozzle of the output of f in

/ 0 Trimmed the well stroke of Le ^

In order to prepare for the process from the semi-permeable membrane * to the recovery of the power, the pressure of the pressure from the semi-permeable membrane * (not shown) is reduced by the minimum power L _mi *. The power recovery device may be driven back by the pressure generator to obtain hydraulic power. * A BE power detector a »is provided in the supply pipe or the power supply pipe is connected to the concentrated liquid pipe. It is also possible to displace the EE force adjusting valve or the exciting force S so as to provide a small amount of power by imaging the EE force adjusting valve or the exciting force S (not shown). Therefore, provision is made for detecting the volume of piping from the pump / to the semi-permeable *

00) The flow rate of the liquid discharged from the volume detector is

Audience may be applied to the wedge valve> 2 and the moving picture so that the supply mark may be appropriate.The total liquid from the outlet of the semi-transparent * to the powering hand Large number of pipes

And a pressure regulating valve such that the% amount of the concentrated liquid detected by the fiber amount detecting means is a fiber liquid amount corresponding to the minimum power.

Λ ^ It is also possible to adjust the J and the excitation power. Available for your business

In the present invention, the food is sent to a table meal, which is a must-have meal, especially for the ingestion of seawater, but 1K is used for other medicines A, food and other fibers.

Claims

Scope of request H ι Operation of the supply liquid * Pump, pump and pressure regulating valve interposed in the piping of the pump and semi-transparent storm, semi-transparent membrane, and higher performance than the semi-transparent organ It is equipped with a hand-painted knives arranged in the Confucian Confucianism.餞餞餞と、詹 ft to to to to to to ft to to ft to to to At the moment, the minimum amount of encouraging power is calculated.

The pump and the semi-transparent W pipe are equipped with a pressure detector, and the pressure is regulated so that it becomes equal to the control pressure in the supply liquid at the calculated operating point. Claims comprising a control circuit for controlling the operation of the device and the operation of the device.

^ The pump and the semicircular rot! 腐 pipe can be weighed with the mass detector, and the furnace is operated at the calculated operating point.

請求 The billing box in section / E of the billing box with a control circuit for the so-called "M" of the pressure gauge valve and the power circuit so as to be equal to the quantity of the request.

* Semi-permeability and power 驭驭 M M £ 搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛搛Power Garden Or, a control circuit for controlling the EE power regulating valve.

半 Semi-permeability and power recovery

In order to make it equal to the current amount of liquid in the system at the operating point calculated by this instruction,

In addition, the control box that controls the pressure squeeze valve is controlled.

4 With semi-permeability, equipped with dilute irrigation liquid A, and adjust the pressure so that the loss amount is equal to the calculated amount of diluent in the system. Refer to claim with provision of a control circuit to return the valve or power recovery device.

1 Minimum location 41 Return circuit to calculate power is a car

In the image of Sada Hajime, it is equipped with a function to calculate the meaning point that minimizes the required power in the area below the allowable size of the semi-permeable membrane. Item / One of the periameter devices.

0

¾ ATlO