SU1650597A1 - Desalination plant - Google Patents

Abstract

The invention relates to a technique for desalinating saline waters, can be used as stand-alone desalination plants, and allows for greater efficiency and autonomy of operation. The desalination plant contains an evaporation chamber and a condensation chamber separated by a thermoelectric battery whose hot junctions face the evaporation chamber, an additional condenser, piping, steam lines and condensate lines, connect the evaporation chamber directly to the condensation chamber, the output of which is connected to the additional condenser by the steam line. In addition, the desalination plant further comprises a steam separator, a circulating pump, a salt water buffer tank, a check valve, a level regulator, first and second electromagnetic valves, a switching valve, a vacuum pump, a salt water tank, a condensate reservoir, a condensate pump, a unit water conditioning and water collection. 3 з п. Ф-лы, 3 ил СП

Description

This invention relates to a technique for desalinating saline waters and can be used as standalone desalination plants.

The purpose of the invention is to increase efficiency and ensure the autonomy of work.

FIG. 1 is a schematic diagram of a desalination plant; in fig. 2 - desalination plant with heat recovery of condensate and coolant; in fig. 3 - the same with condensate heat recovery.

The self-contained desalination plant contains (Fig. 1) an evaporation chamber 1 and a condensation chamber 2, which are separated by a thermoelectric battery 3. Hot junctions 4 thermopiles 3 are facing

into the evaporation chamber 1, and the cold junctions 5 into the condensation chamber 2. The evaporation chamber 1 is connected by a steam line to a condensation chamber 2, the outlet of which is connected to an additional condenser 6. The desalination plant also contains a steam separator 7, a circulation pump 8, a salt water buffer tank 9, a check valve 10, a regulator Level 11, first 12 and second 13 solenoid valves, switching valve 14, salt water tank 15, control valve 16, vacuum pump 17, condenser accumulator 18, condensate pump 19, water conditioning unit 20 and water collector 21, desalination elements tion installation conduits are connected and capacitor toprovodami (shown by the solid

a c a

h:

gmn.pell), steam lines {depict the breaks by the true line), moreover, the steam separator is connected on a pericode between the chamber and. Zreimch 1 and the camera densensmi2. Circulation hscorvi discharge I connected to the salt water outlet from the evaporation chamber I, from its outlet through a non-return valve (O is connected by pipeline to the inlet of the 9 salt buffer tank. The outlet of the latter is connected by pipeline through the pens; solenoid valve 12 with saltwater inlet and chamber 1 evaporation. The output of a fraction of the condenser 6 through the accumulator of kg of condensate 18 is connected to the con- fi ne; –––––––––––––––– Single input nary-mind-pump VI black without regulating

16 GHROGFONODOMI SHOPPOLNU1gePonnp satorpm 6 i. ikogm e. m with -1- and psat 18. Switch O, class 1

COC / ih H Roughly Conducted

16 salt water, with a camera and a steam. 1 through controller 11 as well as from the dog dog, NGKHYATCHPMSU hdezh b. -Beppog smchlosyo 9 and obrpnym vachnom K) Vtpron chTro. a H / iTiiMH (lanan 13 is connected to w i.iv, c / water, aloe- f between the buffer capacity 9 and the first electromagnet station 12. In addition to the go (, to the compressor G, the output ports | Handbook of j / l for the liquid

R desalination plant, ioiiv and not. FIG. 2 from the reservoir 15 of the vessel, the cavity 22 is located. The right of separation from the reservoir is 15 crawls of CTV. 22 spins this element of thermal insulation in a hemophone of primary action. of the lanes 22, connect the pipeline with the second zl.chgropredigny valve 13, and at the output of ae st i, new / cord thread 23 23 end of the 05 ю ° m cavity 22 not less than the buffer capacitance h 9. In addition, the oppressor will increase so it contains g ifripo- obpenshk.k 24, chogory and connected by pipeline g; the entrance of the pesjooyapa 15 salt water and, by the way, the oubaprovodom oulul dyu ley liquid

R olresiit. We ouch f. ir 3) on the coarse window; in the regulator, rum 1 I level and with the evaporation chamber 1 install. consistently built-in heat exchanger 25 and vgtg, a warm condenser 26, which are placed into the condensation chamber 2 at the same time as the heat exchanger 25; it is located in IT parts, not KfiMepi i. condensation 2 and the built-in (. mc cold gels

5 thermopile and built-in heat exchanger 25. In this case, the cavity 22 is separated from the tank 15 by a pereurodka 27. Desalination plants work as follows

Before starting the autonomous desalination plant (FIG. 1), the first solenoid valve 12 opens, and the second solenoid valve 13 closes. The valve 14 is switched to the position, saline water is supplied from the tank 15 to the level controller 11. Next, the installation is evacuated. The vacuum pump 17 is turned on and through

5, the control valve 16 is carried out by evacuating the cavities, the condensate storage 18 of the additional condenser 6, then the condensation chamber 2, and through the evaporator / evaporation chamber 1.

Sopen water is fed to reservoir 15,

from which it is fed through switching switch panel 14 and 11 into the

evaporation chamber 1 for hot junction 4 ter

Molecular Battery 3. Out of Camera 1

5 by the circulation pump 8, the saline water through the check valve 10 is fed into the buffer tank 9 and fills it. From the buffer tank, cr., T i 9, through the first electromagnetic klpon 12, it is fed again.

Into the chamber, I used hot junction 4 thermoatt & 3 with a smoky salt beneath which circulates continuously in the circuit {hot loop) R of the following sequence, and the junction 4 of the thermopile 3,

5 circulating naked 8, non-return valve 10, a buffer tank 9, the first electromagnet 12 and again the hot junctions 4 thermopiles 3 The level of the liquid in the evaporation chamber 1, pa and i x 4 x 4 adjusts with the 11 level regulator. When a predetermined level of liquid in the evaporation chamber 1 is reached, the regulator 11 cuts off the flow of saline water into the hot circuit. During operation, when the level of the liquid decreases

L of the evaporation chamber 1 by means of the level controller 11 takes place continuously with water / salt water from the tank 15.

The thermopile 3 is energized

(} direct current. In this case, heat is released on its hot cmcix and heat is absorbed in cold. Heat from the hot junctions of 4 thermopiles 3 is transferred to the salt water circulating in the hot

5 contour This causes heating and evaporation of water in chamber 1 at hot spa x 4 The resulting steam, through separator 7, enters the condensation chamber 2 in the steam trap and, RNF rtsch n cold spa x 5, v ther, condensation of the vapor by means of a thermopile 3 (heat pump) is again transferred to the evaporation chamber 1 and goes to the heating and evaporation of water. Thus, the thermopile 3 works on the principle of a heat pump, increasing the overall efficiency of the desalination plant and reducing the specific energy consumption.

Excess steam from condensation chamber 2 enters an additional condenser 6, where it condenses. The heat in the additional condenser 6 is removed by a coolant (water) circuit. The resulting condensate is discharged from the condensation chamber 2 and the additional condenser 6 to the condensate accumulator 18. Moreover, the condensate enters by gravity by supplying the vacuum line 18 to the condenser condenser from the back side of the membrane. During operation, the condensate storage tank is filled, while its membrane rises up. When the maximum volume is reached, the condensate storage membrane closes the end contacts that automatically switch on the condensate pump 19, and the condensate is pumped out of the storage tank 18 The condensate is pumped through the water conditioning unit 20, where the condensate is brought to the parameters of drinking water and discharged into a collection of water 21. When the minimum volume of condensate in the accumulator 18 is reached, its membrane closes the end contacts in the lower part, and the condensate pump 19 is automatically switched off. In this way, autonomous periodic pumping of condensate is provided.

During the operation of the desalination plant in a hot circuit: hot junctions 4, circulation pump 8, check valve 10, buffer tank 9, first solenoid valve 12 and again hot junctions 4, the salt water concentration rises continuously from initial to final (45% ). Upon reaching the final concentration of the desalination plant, it switches to the concentrate discharge mode. The thermopile 3 is turned off and the circulation pump 8 is turned off. The first solenoid valve 12 is turned off, the second solenoid valve 13 is opened, and the valve 14 is switched in the direction of the buffer tank. In this case, the initial water displaces the concentrate from the buffer tank 9. To displace the concentrate, a volume of the initial salt water, equal to the volume of the buffer tank, is sufficient. The logic of the desalination plant is set in such a way that the concentrate is discharged after processing a certain amount of the original

salt water or after a certain number of pumping cycles out of storage 18, after the comparison of the concentrate, the second valve 13 closes, the first

valve 12 m valve 14 switches to the direction of the regulator 11 level The desalination plant switches to the operation mode described above.

In the desalination plant (Fig 2)

0, the concentrate is discharged into the cavity 22 of the salt water reservoir 15. The reservoir 15 with a bore of 22 is a batch heat exchanger. Here, the heat accumulated in the condensate goes to pre-trust heating of the original salt water. In addition, the original salt water initially enters the heat exchanger 24, which regulates the heat of the coolant water from the additional

0 capacitor 6

In the desalination plant (Fig. 3), salt water is fed through the built-in heat exchanger 25 and the built-in condenser 26, which are placed

5 into the condensation chamber 2. In this case, the condensate heat is regenerated and the heat load on the additional capacitor 6 is reduced. The efficiency of the plant increases.

Claims (2)

Formula of invention 1 A desalination plant comprising an evaporation chamber and a condensation chamber placed between the chambers of a thermoelectric battery, hot springs and 5 of which are turned into an evaporation chamber, an additional condenser, pipelines, steam lines and condensate lines, characterized in that, in order to increase efficiency and ensure operation autonomy, it is equipped with a steam separator, a circulation pump, a salt water buffer tank, a check valve, level torch, first and second solenoid valve, switching valve, salt water tank, control valve, vacuum pump, condensate accumulator, condensate pump, air conditioning unit ode and collection of water, said chamber is connected to steam pipe ispare0 audio pChara separator through condensation directly with a camera, whose output is connected with a steam pipe additional capacitor, the input of the circulation pump 5 is connected by pipeline to the outlet of the evaporation chamber, and the outlet of the circulating pump through a check valve is connected to the buffer tank of salt water, which is connected to the inlet of the evaporation chamber through the first solenoid valve, through the condensate accumulator through the condensate accumulator, the output of which through the water conditioning unit is connected to the water collection piping, the inlet of the vacuum pump is connected through the regulating valve with a wire with an additional condenser and a condensate tank, the switching valve is connected by pipelines to a salt water tank, through a level regulator to an evaporation chamber and to a pipe located between the buffer tank and a check valve, the second solenoid valve is connected to the pipeline placed between the buffer tank and the first solenoid valve, and an additional condenser connected inlet and outlet pipes of the coolant. 2. Installation pop, 1, characterized in that it is equipped with a concentrate tank, and salt water tank is supplied - j D. „ 17 / "± L I  i 2 5 20 a partition placed to form a closed cavity, the inlet of which is connected by a pipeline to the second solenoid valve and the outlet to concentrate tank, while the volume of the cavity is not less than the volume of the buffer tank. 3, the installation of claim 1 and 2, characterized in that it is provided with a heat exchanger connected by pipelines to the inlet of a salt water tank and an outlet pipe for a cooling fluid. A. Installation on PP. 1-3, that is, with the fact that it is equipped with sequentially placed built-in heat exchanger and built-in condenser, connected to the pipeline between the level control and condensation chamber, and installed in the condensation chamber, while the built-in heat exchanger is installed on the bottom of the condensation chamber, and the built-in condenser, between the cold thermopile joints and the built-in heat exchanger. - nbSomna boda 14 gy I n |  i Concentrate 2 5 Coolant Fig CSJ Uqkuytl Oos Ohm Lead Solena Soda 27