RU2172215C2 - Plant for liquid spraying - Google Patents

Abstract

FIELD: equipment of liquid spraying by compressed air; applicable in manufacture of plants for spraying various liquids, chemical solutions and dispersions. SUBSTANCE: plant body is made in form of detachable cylinder with cavity forming chamber for liquid in upper part and vertical channels communicating with cavity in lower part. Chamber for compressed air is made in form of hollow cylinder embracing body central part and having upper and lower bases. Cylinder is limited in height on the side of upper base by nozzles supplying liquid and made in side wall of chamber for liquid, and additional nozzles one the side of lower base. Additional nozzles are radially arranged in body wall and communicating outlet parts of body vertical channels. Additional open chambers with additional holes for air discharge are radially arranged on upper base of chamber for compressed air. Every other open chamber is communicated with respective open chamber on side generating surface of chamber for air and chamber lower base has through holes for air discharge round body. EFFECT: extended plant technological potentialities and its high economic efficiency due to provided possibility for direct motion of liquid flow subject to spraying and its simultaneous spraying upward, downward and in horizontal direction over circumference. 2 cl, 2 dwg

Description

 The invention relates to techniques for spraying liquids with compressed air and can be used in the manufacture of plants for spraying various liquids, chemical solutions and dispersions.

 A known liquid atomizer (see ed. Certificate of the USSR N 1734870, IPC 5 B 05 B 17/00, 1992) containing a guide plate for fluid ejection with a groove of a V-shaped cross section and a hole for supplying compressed air in its recess. However, the presence of a single hole limits the production capacity of the known sprayer when working with large machined surfaces.

 There is also known a device for spraying liquid (see US patent N 3915384, IPC B 05 V 1/20, 1972), comprising a housing, a chamber for compressed air with through holes for air supply and made on the side surface along the generatrix of the open channels, the supply pipe compressed air and nozzles for supplying fluid to open channels. The nozzles for supplying liquid to the channels are made in the pipeline, which causes a non-uniform supply of liquid to all channels. The execution of the surface of the body with a vertical rectilinear surface does not allow for the spraying of liquid in the horizontal direction around the circumference and simultaneously in the vertical directions up and down.

 Thus, the invention is based on the task of creating an installation for spraying liquids, in which another embodiment of the form of the housing, the chamber for compressed air and the introduction of new elements would allow for directed movement of the fluid flow to be sprayed, and its simultaneous spraying up, down and in horizontal circumferential direction, due to which the technological capabilities of the installation would expand and its efficiency would increase.

 The problem is solved in that in the installation for spraying liquid containing a housing, a chamber for compressed air with through holes for supplying air and made on the side surface along the generatrix of open channels, a pipe for supplying compressed air and a nozzle for supplying liquid to the channels according to the invention, the housing is made in the form of a detachable cylinder with a cavity forming for the liquid chamber in the upper part and with vertical channels communicating with the cavity in the lower part, the compressed air chamber is made in the form of coverage the central part of the housing of the hollow cylinder with the upper and lower bases, limited in height from the upper base side, made in the side wall of the fluid chamber radially by nozzles for supplying liquid, and from the side of the lower base by additional nozzles made radially in the housing wall and communicating with exit sections of the vertical channels of the housing, while on the upper base of the chamber for compressed air there are made radially placed additional open chambers with additional Verstov air outlet, each second of which communicates with a respective open channel on the side surface forming chamber for air, and the lower its base through holes for air to escape around the housing.

 It is also advisable that the nozzle for supplying compressed air was in communication with a channel made along the axis of the housing in the lower part, having lateral channels extending from it, communicating with the cavity of the chamber for compressed air.

 The execution of the cylindrical body with the presence in its upper part of the fluid chamber with radial nozzles made on its side wall and the presence of vertical channels for the passage of fluid into the lower part of the housing and the additional radially made nozzles connected to them allows for fast and uniform formation and distribution of fluid flow at two levels, further directed movement of the fluid to the openings for the exit of compressed air is achieved by the presence of radially located open channels als on the top base of the chamber for compressed air, designed as a housing part covering the central hollow cylinder, a limited adjustment outputs nozzles for the liquid and a second message of each of them with a corresponding open channel on the side forming the chamber for compressed air. Openings on the upper and lower bases of the compressed air chamber for the exit of compressed air at certain intervals around the circumference, on the upper base in radially arranged channels, on the lower base in close proximity to the side wall of the housing, along with the openings in the open channels on the side surface, allows simultaneous spraying of liquid up, down and in a horizontal direction around the circumference, thereby expanding the technological capabilities of the installation and increases Xia its efficiency.

 The execution along the axis of the housing in the upper base of the hole for the nozzle for supplying liquid, and in the lower base of the channel with its branching into channels directed to the side walls, for the release of compressed air into the chamber for compressed air, allows for uniform synchronous flow of air and liquid, which also increases its manufacturability.

 In FIG. 1 shows an apparatus for spraying liquid, FIG. 2 - the same, top view.

 The installation comprises a housing in the form of a detachable cylinder 1, including a liquid chamber 2 and vertical channels 3 emerging from it, made on a circle on the lower base of the liquid chamber 2, directed to the lower part of the body and at the ends having horizontal nozzles 4 for supplying liquid, leaving on the side wall of the housing 1. On the side wall of the liquid chamber 2 at its lower base, horizontal nozzles 5 for supplying liquid are made at certain intervals.

 In the central part of the housing 1 there is a chamber 6 for compressed air, made in the form of a hollow cylinder, covering the housing 1, with a height limited by nozzles 4 and 5 for supplying liquid.

 On the upper base of the chamber 6 for compressed air, open channels 7 are arranged radially at certain intervals, each second of which, reaching the end of the cylinder, is connected to the vertical channels 8. On channels 7 and 8, openings 9 and 10 are installed for the exit of compressed air, alternating openings 9 are directed vertically upward, on the horizontal surface of the hole 10 — horizontally circumferentially on the side surface of the chamber 6. On the lower base of the chamber 6, holes 11 are installed for the outlet of compressed air directed downward.

 In the liquid chamber 2, an opening 12 is made in the upper base for installing a nozzle for supplying liquid, and a hole 13 is made in the lower base of the housing 1 for installing a nozzle for supplying compressed air, from which air enters the axial channel 14 extending onto the side surface of the housing 1, into the chamber 6 for compressed air. The liquid chamber 2 has a threaded connection 15 with the lower part of the housing 1.

 Installation works as follows.

 Compressed air through a pipe in the lower base of the housing (not shown in the drawing), through channel 14, is supplied to the chamber 6 for compressed air, and then through pressure holes 9, 10 and 11 leaves the chamber to its upper, lower horizontal surfaces and side surface.

 The sprayed liquid or solution through the upper nozzle (not shown in the drawing) installed in the hole 12 is fed into the liquid chamber 2, flows into the channels 3, and through the horizontal nozzles 4 and 5 located in the side walls of the casing, it flows outside, where it gets from the nozzles 5 into radially located horizontal open channels 7 and for each second of them flows into vertically located open channels 8.

 The solution is sprayed with a stream of compressed air leaving the openings 9, 10 and 11, and is sprayed to the surface to be treated in all directions.

Claims (2)

 1. Installation for spraying liquid, comprising a housing, a chamber for compressed air with through holes for supplying air and made on the side surface along the generatrix of open channels, a nozzle for supplying compressed air and a nozzle for supplying liquid to the channels, characterized in that the housing is made in the form of a detachable cylinder with a cavity forming a liquid chamber in the upper part and with vertical channels communicating with the cavity in the lower part, the compressed air chamber is made in the form of a a hollow cylinder with upper and lower bases, limited in height from the upper base side, made in the lateral wall of the fluid chamber radially by nozzles for supplying liquid, and from the lower base side by additional nozzles made radially in the housing wall and communicating with the outlet portions of the vertical channels of the housing moreover, on the upper base of the chamber for compressed air there are made radially placed additional open chambers with additional openings for air outlet, each the second of which is in communication with the corresponding open channel on the side generatrix of the surface of the air chamber, and in its lower base there are through holes for air to exit around the housing.  2. Installation according to claim 1, characterized in that the nozzle for supplying compressed air is in communication with a channel made along the axis of the housing in the lower part, having side channels extending from it, communicating with the cavity of the chamber for compressed air.

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