RU176319U1 - DESCRIPTION INSTALLATION OF REVERSE OSMOSIS - Google Patents

Abstract

The utility model relates to technical means of water treatment, in particular to desalination of sea water, and can be used to provide the population and agriculture with high-quality fresh water. The technical result is to improve the quality of desalinated water by adjusting the isotopic composition of water - reducing the hydrogen isotope H ₂ (deuterium), which makes it possible for long-term use by the population and in agriculture without harming human health. To achieve this result, a reverse osmosis desalination plant is proposed, consisting of a high-pressure pump with an electric drive and a recuperator, a membrane separating element, channels for supplying low-pressure source water and high-pressure source, discharge of high-pressure waste water and low-pressure waste water and discharge of desalinated water. The installation additionally contains a water electrolyzer with a channel for draining deuterium-enriched water, connected through a regulator valve to a channel for removing desalinated water, a fuel cell with an afterburner connected to hydrogen and oxygen supply channels with an electrolyzer, and a mixing channel for deuterium-depleted water with a channel for removing desalinated water to consumers. 1 ill.

Description

Technical field

The utility model relates to technical means of water treatment, in particular to desalination of sea water, and can be used to provide the population and agriculture with high-quality fresh water.

State of the art

Various devices for producing desalinated water are known in the art. The most common and energy efficient are desalination plants based on reverse osmosis, for example, RF patents No. 2317138, No. 2401802, No. 2401806 or No. 2446110. However, all such technical solutions have one common and very significant drawback, namely, they do not change the isotopic composition of sea water. It is known that the content of the heavy hydrogen isotope H ² (deuterium) in sea water significantly exceeds its content in the water of lakes, rivers, underground and other continental sources of fresh water. It is also known that an increased content of deuterium slows down metabolic processes in the human body, which leads to serious consequences for his health (see, for example: V. Vetshtein, professor, M. Ganopolsky - professor, academician of the Academy of Medical Sciences of the USA and Russia, etc. An open letter to all branches and authorities of Israel. Http://www.isra.com/news/86251, GD Berdyshev et al. “Aquabiotics - the science of the role of water in life processes”, Kiev, 2003, Wetstein V. , Shevchenko L. Once again on the quality of drinking water, http: //zhurnal.lib/ru/e/etkin_w/eshepazo-kachestvevody.shtml).

Thus, the long-term use of desalinated sea water will negatively affect the population using such water. A radical way to solve the problem may be to reduce the deuterium content in desalinated water, especially taking into account the fact that a low deuterium content has a therapeutic effect in oncology (The role of Light Water in the treatment of oncology, http: //www.junivita.сom/publications/38-science -of-light-water / 269-onkologia.html).

In the RF patent No. 2446110 (op. March 27, 2012, the bulletin “Inventions. Utility models” No. 9), adopted as a prototype, a reverse osmosis desalination plant is proposed, selected from separate modules, each of which consists of a high pressure pump with a recuperator and an electromechanical a drive connected to the membrane separation element block with high pressure feed water supply and high pressure waste water supply channels, a feed water supply channel and a low pressure waste water removal channel are connected to the pump, and to the block embrannogo divider member connected desalinated water drainage channel. This device also has the above disadvantage.

Utility Model Disclosure

The technical result of the utility model is to improve the quality of desalinated water by adjusting the isotopic composition of water - reducing the hydrogen isotope H ² (deuterium), which makes it possible for prolonged use by the population and in agriculture without compromising human health.

To achieve this result, a reverse osmosis desalination plant is proposed, consisting of a high-pressure pump with an electric drive and a recuperator, a membrane separating element, channels for supplying low-pressure source water and high-pressure source, discharge of high-pressure waste water and low-pressure waste water and discharge of desalinated water, while it additionally contains a water electrolyzer with a drainage channel enriched in deuterium water, connected through a faucet-regulator to the drainage channel of the fresh water ennoy water, the fuel cell with afterburner connected channels for supplying hydrogen and oxygen from the electrolyzer, and the channel mix with deuterium-depleted water with a desalinated water outlet duct to consumers.

Brief description of the model drawing

The figure shows a diagram of a desalination plant reverse osmosis, where:

1 - electric drive;

2 - high pressure pump with recuperator;

3 - block membrane separation element;

4 - electrolyzer;

5 - fuel cell;

6 - afterburner;

7 - crane-regulator;

8 - channel for supplying low-pressure source water;

9 - channel for supplying high-pressure feed water;

10 - channel for discharge of high pressure waste water;

11 - channel for discharge of low-pressure waste water;

12 - channel for removal of desalinated water;

13 - channel for supplying water to the electrolyzer;

14 - channel desalinated water supply to consumers;

15 - channels for supplying hydrogen and oxygen to the fuel cell;

16 - channel mix of deuterium-depleted water in desalinated;

17 - channel drain water enriched in deuterium from the electrolyzer.

Utility Model Implementation

The reverse osmosis desalination plant consists of a high pressure pump with a recuperator 2, an electric drive 1, a membrane separation element 3, channels for supplying low 8 and high 9 pressure source water, high 10 and low 11 pressure waste water channels, desalinated water removal channel 12, moreover, the installation further comprises a water electrolyzer 4 with a channel for discharging water enriched in deuterium 17, connected by a channel for supplying water to the electrolyzer 13 through a faucet-regulator 7 with a channel for draining desalinated water 12, fuel an element 5 connected by channels for supplying hydrogen and oxygen 15 to the electrolyzer 4, and afterburner 6 with a channel for mixing deuterium-depleted water 16 into the channel for removing desalinated water to consumers 14.

Installation works as follows.

Source seawater is supplied through a low pressure source water supply channel 8 to a high pressure pump with a recuperator 2 and an electric drive 1, of which high pressure necessary for reverse osmosis is supplied through a high pressure source water supply channel 9 to a membrane separation element 3 unit, where it is divided into desalinated, discharged through the channel for discharging desalinated water 12, and high-pressure effluent discharged through the channel for discharging high-pressure waste water 10. To save energy, high-pressure wastewater the high pressure waste water channel 10 is fed to the high pressure pump recuperator 2, where the water pressure is activated and low pressure is discharged from the installation through the low pressure waste water channel 11. Part of the desalinated water from the channel for the removal of desalinated water 12 through the regulator 7 is supplied to the electrolyzer 4, where it is partially decomposed into hydrogen and oxygen, which are supplied through the hydrogen and oxygen supply channels 15 to the fuel cell 5, in which they are electrochemically oxidized to generate electricity, h partially compensated by the cost of electrolysis, and the unreacted residues of hydrogen and oxygen in the afterburner afterburned 6. In the electrolysis process occurs separation of hydrogen isotopes in which a generated hydrogen is decreased deuterium content of which is concentrated in the remaining water in the electrolytic cell. Part of the water with a high deuterium content is discharged from the electrolyser 4 through the drain channel of deuterium-enriched water 17, which can be used as a semi-finished product for the production of deuterium from it. Water with a reduced deuterium content after the fuel cell 5 and afterburner 6 is fed into the desalinated water supply channel 16 to the desalinated water supply channel 14 through the mixing channel of desalinated deuterium-depleted water to consumers 14. As a result of mixing the desalinated water with desalinated depleted water, the total deuterium content in the water supplied to consumers is reduced to the required safe level or to a lower therapeutic.

Thus, the claimed desalination plant reverse osmosis improves the quality of the produced water, and it can be used for long-term provision of people and agriculture without damage to health. Dimensions and installation parameters are determined in each case, based on customer requests.

Such a solution fits into the existing effective desalination plants for reverse osmosis without significant structural changes.

The calculations showed that the optimal operation mode of the installation is achieved when the ratio of flows in the water supply channel to the electrolyzer 13 and the desalinated water removal channel 12 is 1 / (1.5 ÷ 1.7) and in the enriched water removal channel from the electrolyzer 17 and the water supply channel to the electrolyzer 13 as 1 / (5 ÷ 6.5). At the same time, up to 88–90% of desalinated water obtained after the membrane separation element block is supplied to the consumer with improved quality, and the deuterium content in the enriched water from the electrolyzer increases 2.7–3.1 times.

Claims (1)

A reverse osmosis desalination plant consisting of a high-pressure pump with an electric drive and a recuperator, a membrane separating element, channels for supplying low-pressure source water and high-pressure source water, discharge of high-pressure waste water and low-pressure waste water, and discharge of desalinated water, characterized in which further comprises a water electrolyzer with a channel for discharging deuterium-enriched water, connected through a faucet-regulator with a channel for discharging desalinated water, a fuel cell with up to igatelem connected channels for supplying hydrogen and oxygen from the electrolyzer, and the channel mix with deuterium-depleted water with a desalinated water outlet duct to consumers.

Images