RU2540625C2 - Method of producing light water - Google Patents

Abstract

FIELD: physics, atomic power.

SUBSTANCE: invention relates to production of water with low content of heavy isotopic water types from natural water via freezing and thawing processes and be used for household purposes. The method of producing light water includes uniformly cooling and mixing natural water until ice of heavy water forms, removing the mixture of ice of heavy water and light water, wherein the process is carried out in the presence of a plurality of abrasive particles, placed freely in the process area and deposited on structural components of the apparatus for producing light water or said particles being integral parts of said components.

EFFECT: invention provides improved binding of ice of heavy water and efficient production of light water.

3 dwg

Description

The invention relates to the field of obtaining water with a reduced content of heavy isotopic types of water, hereinafter referred to as light or prothy water, from natural water by freezing and thawing processes and can be used for domestic purposes.

A known method of producing light water [1] by implementing the steps:

- placement in a freezer of a container with natural water;

- when an ice layer is formed on the surface and on the walls, water is drained:

- ice remaining in the container is discarded

This method is based on the fact that the freezing temperature of pure light water is lower than the freezing temperature of heavy water, and this difference is up to 3.8 ° C for various types of heavy water. Thus, it is assumed that the first layer of ice formed in a container with natural water consists of ice of heavy water, which is not recommended for consumption [1]. The disadvantages of the method include: its relatively long duration, lack of automation, lack of confidence that all heavy water has time to undergo crystallization during the exposure time in the freezer. To eliminate these shortcomings create artificial mixing of water in containers and artificial crystallization centers in the form of air bubbles [2], carry out filtering to remove ice crystals of heavy water.

Closest to the proposed method is the "Method for producing light water 1H2 16O" [3]. This method consists in the fact that natural water is evenly cooled, periodically mixed by aeration with air until a suspension of heavy water ice forms, the resulting suspension of ice is filtered and the food light water is discharged. This method requires less time to process a portion of water, amenable to automation. However, this method has several disadvantages, which include: 1) the use of a single crystallization mechanism for heavy isotopic types of water, namely crystallization on air bubbles, which lengthens the process in time and requires special design solutions; 2) the need for a filtration phase that requires additional time and the availability of appropriate equipment.

These shortcomings are largely eliminated by the proposed method for producing light water from uniformly cooled and stirred natural water until ice forms heavy water with further removal of a mixture of ice heavy water and light water.

The purpose of the invention is to increase the efficiency of the process of binding ice of heavy water by introducing an additional crystallization mechanism.

This goal is achieved in that the process of cooling and mixing of natural water is carried out in the presence of many abrasive particles placed in the process zone both freely and applied to the structural elements of the light water production plant or which are integral parts of these elements.

The effect of the presence of abrasive particles in the crystallization zone of heavy water ice is experimentally confirmed [4] in the form of ice crystals forming on the abrasive surface.

The figures show an example installation diagram for implementing the method and the results of its operation.

Figure 1. Schematic diagram of the installation for producing light water, where:

1 - a container with natural water; 2 - a device for mixing water, an air diffuser; 3 - air compressor for powering the diffuser; 4 - a hose; 5 - structural element with an abrasive surface (diffuser without air supply, in this case); 6 - outdoor thermometer; 7 - internal thermometer; 8 - heat-insulating cover with a thermostat and elements that generate heat / cold.

Figure 2. Crystallization of heavy water ice on an air diffuser with an abrasive surface that generates a stream of bubbles mixing the water in the tank. For comparison, the diffuser is shown in the initial state.

Figure 3. Crystallization of heavy water ice on an air diffuser with an abrasive surface that is not connected to an air compressor and is used as a structural element of the installation. For comparison, the diffuser is shown in the initial state.

Installation for implementing the proposed method works as follows. In a thermally insulating cover, a temperature below 0 ° C is created, which is necessary for cooling water to a temperature of about 0 ° C. When the water temperature reaches the specified temperature, the thermostat ensures its maintenance at a predetermined level. An air compressor is turned on to mix the water. Over time, the duration of which depends on the capacity of the tank and the parameters of the abrasive surface on the internal structural elements with an abrasive surface, ice of heavy water forms, which, for example, is removed together with the corresponding structural element. Also, after freezing ice of heavy water, light water can be drained, and ice of heavy water can then be melted by changing the thermostat task, followed by washing and draining. During operation, crystals of heavy water may also form in the surface layer. You can get rid of them by known methods, for example by filtration.

It is also possible to implement the method when the abrasive particles are in water in a free state, for example in the form of a suspension, and are crystallization centers for heavy water.

The moment of completion of the formation of crystals on abrasive surfaces can be recorded by known methods, for example, visually or using optical or laser sensors.

List of references

1. Mosin OV Preparation of Protein Water. An article on the Internet site. Http://www.o8ode.ru/article/tawa/prigotovlenie_protievoi_vody.htm.

2. Muratov M.M. A device for producing light water. Application for invention 2008146513/15 11/25/2008.

3. Muratov M.M. The method of obtaining light water 1H2 16O. Application for invention 2011117384/05, 04/29/2011.

4. Vasiliev Yu.B. Experiment protocol for ice binding of heavy isotopic species of water. Appendix to the materials of this application for an invention. 2013 year

Claims (1)

A method of producing light water, in which natural water is evenly cooled and stirred until ice forms heavy water, subsequently remove a mixture of ice heavy water and light water, characterized in that the process is introduced in the presence of many abrasive particles, both placed freely in the zone of the process, and applied to the structural elements of the installation for producing light water or which are integral parts of these elements.

Images