SU1060259A1 - Method of washing through internal cavities of articles - Google Patents

Abstract

1. METHOD FOR WASHING OF DRAIN INNER CAVITIES OF PRODUCTS, stopping the supply of jets of washing liquid from opposite ends of the product towards each other before collisions and removal of the contaminated liquid from the cavity during the washing process, and in order to increase efficiency washing, removal of the contaminated liquid from the cavity during the washing process is performed in an amount not less than the amount of washing liquid supplied to the cavity to get the submerged jets, and the plane of the impact of the jets moves along the inside bottom surface of the product. 2. The method according to claim 1, wherein the movement of the plane of the impact of the jets is made by changing the flow rate of the liquid in the jets. 3. The method according to claim 1, is distinguished by the fact that the displacement of the plane of impact of the strut is made by shifting the jets relative to each other in this plane. 4. The method according to claim 1, referring to the fact that the displacement of the plane of the impact of the jets is made by the periodic introduction of gas into at least one of the jets. 5. The method according to claim 1, which is based on the fact that the displacement of the plane is the impact of Trui. (Produced by moving the product.

Description

;; L

.

Ltd

ate

with

FIELD The invention relates to mechanical engineering and can be used when washing through internal cavities of products of complex configuration in enterprises of the machine-building and chemical industries. A known method of washing hollow articles with branches is that the product is placed in a bath with washing solution and the solution is fed into the product at the same time from opposite ends. The streams of the washing solution meet in the branch zone and through it the solution enters the bath, creating streams inside it and facilitating the external cleaning of the product ij. However, flushing with submerged jets is ineffective for products with a large cross section, since the speed of the cleaning solution in the cleaned walls is small. In addition, return currents are formed in the cavity of the product, preventing the removal of contaminants. The purpose of the invention is to increase the washing efficiency. This goal is achieved by the fact that, according to the method of washing through internal cavities of products, consisting in supplying jets of washing liquid from opposite ends of the product towards each other before the impact and removal of the contaminated liquid from the cavity during the washing process, removal of the contaminated liquid from the cavity into the washing process is performed in an amount of not less than the amount of washing liquid supplied to the cavity to obtain free-flowing jets, and the plane of jet impact is moved along the internal cavity of the product. The movement of the jet impact plane along the inner surface of the product is carried out by changing the flow rate of the liquid in the jets, displacing the axis of the jets relative to each other. this plane, by periodically introducing gas into at least one of the jets or by moving the product. FIG. 1 and 2 show embodiments of the proposed method. The hollow article 1 is installed in such a way that the contaminated liquid is drained from the cavity of the product, for example, if there is a branch in the middle part, the hollow product is oriented downwards. The inside of the product through nozzles 2 and 3 of the spray jet 4 and 5, which collide inside the product, the amount of polluted fluid being withdrawn must not be less than the amount of washing fluid supplied to the inside of the product, due to which the jets of washing fluid are not submerged. The velocity of the liquid in the film formed during the collision of free non-submerged jets is close to the velocity of the liquid in the jet, due to which the contaminants are removed from the surface being cleaned. With equal flow rates of the nozzles, jet diameters and coincidence of the jet axes, a liquid film is formed at an equal distance from the nozzles (position q). In order to influence the entire surface being cleaned with a high-speed flow, the relative displacement of the liquid film is performed. To move the plane of impact of the jets and with it the liquid film on the surface being cleaned, the relative flow rate of the liquid in the nozzles is changed. For example, with a gradual increase in the flow rate of the liquid in the nozzle 3 relative to the nozzle 2, the resulting film is moved to position b and further, the high-speed flow of liquid in the film sequentially affects the entire inner surface of the product. The movement of the plane of impact between the jets and the film can be made by displacing the jets relative to each other. FIG. 2 shows the flow at the displacement of the axes of the jets relative to each other. Conical movements of jets with a varying angle of cone solution are most preferred. The displacement of the plane of collision of the jets and the film can also be achieved by introducing portions of gas into the jets, with the maximum displacement of the film from the equilibrium state approximately equal to half the length of the gas bubble. Introducing gas portions in addition to displacing the film facilitates the removal of liquid from the internal cavity of the product. The movement of the plane of impact of the jets and the film can also be carried out by moving the product with fixed nozzles. The application of the proposed method allows to improve the quality of cleaning the internal surfaces of products of complex configuration.

Claims (5)

454) 1. METHOD OF RINSING THROUGH THE INTERNAL CAVITIES OF THE PRODUCT, which consists in feeding jets of washing liquid from opposite ends of the product towards each other until they collide and draining the contaminated liquid from the cavity during the washing process, distinguishing it with the aim of increasing efficiency washing, removal of contaminated liquid from the cavity during the washing process is carried out in an amount not less than the amount of washing liquid supplied to the cavity to obtain unfilled jets, and the plane of impact of the jets is moved along the inside her product surface, 2. The method of pop, 1, characterized in that the movement of the plane of impact of the jets produce a change in the flow rate of the liquid in the jets. 3. The method of pop. 1, characterized in that the movement of the plane of impact of the jets is produced by the displacement of the jets relative to each other in this plane. 4. The method according to π. 1, characterized in that the plane of movement of the impingement jets _of Manu-, DYT periodic gas inlet at $ least one of the jets. 5. The method according to p. 1, about t l and characterized in that the movement of the plane of impact of the jets. t produce by moving the product.