SU944672A1 - Apparatus for receiving, mixing and delivering pressurized liquids mainly paints - Google Patents

Description

(54) DEVICE FOR RECEPTION, MIXING AND DISTRIBUTION UNDER PRESSURE OF LIQUIDS, PRIORLY COLOR

one

The invention relates to devices for receiving, mixing and delivery under pressure of liquid mixtures, such as paints, in particular in the manufacture of painting works.

A known apparatus for receiving, mixing and dispensing pressure liquids such as paints, comprising a hermetically sealed vessel, an agitator, an ejector, a float valve, taps and pipelines for supplying compressed air to the vessel and dispensing liquid 1.

The disadvantage of such a device is the possibility of a leakage of the float valve and the release of liquid (paint) into the atmosphere.

This happens because after the float valve is triggered and the ejector vacuum chamber is disconnected from the vessel, the vacuum in the unfilled part of the vessel remains, the liquid under the pressure differential continues to flow into the vessel, fills the valve and its seat, with repeated filling of the vessel causing the float flap and seat (when using

paints — dried paint), the valve’s tightness is disturbed, the liquid (paint) enters the dilution chamber of the ejector and is ejected through the diffuser into the atmosphere, which creates a fire hazard,

 aggravates sanitary conditions in obstruction and disrupts the operation of the apparatus.

It is also known a device for receiving, mixing and dispensing liquids, for example paints, including a vessel with a lid, a stirrer and a float, an ejector connected to the vessel by pipeline, supply lines for compressed air and liquid to the vessel and delivery of liquid and means for communicating the vessel with the atmosphere. The device eliminates the possibility of liquid ejection into the atmosphere due to the communication of the vessel with the atmosphere at the moment of its filling 2.

A disadvantage of the known device is the complexity of the design.

20 The purpose of the invention is to simplify the design and increase reliability.

Claims (2)

The goal is achieved in that the device for receiving, mixing and dispensing pressurized liquids, mainly paints, including a vessel with a lid, a stirrer and a float, an ejector connected to the vessel by means of a pipe, a supply line for compressed air and liquid and a liquid communicating the vessel with the atmosphere, means for communicating the vessel with the atmosphere are made in the form of a safety valve mounted on the vessel and connected with it by means of a double-arm check valve lever, mounted on the pipeline connecting the vessel to the ejector and rigidly connected to the float. With such an arrangement of the device, when the predetermined level of liquid (paint) is reached, the vessel is in communication with the atmosphere, a rapid increase in pressure in the vessel to atmospheric occurs, and the further flow of liquid (paint) into the vessel is stopped, thereby preventing its release through the ejector to the atmosphere. The drawing shows a diagram of the device. A device for receiving, displacing, and delivering liquids, such as paints, under pressure, includes a vessel 1 with a lid 2, a drive mixer 3 and a float 4 and connected by pipe 5 to the vessel 1 ejector 6. Pipe 7 is provided for supplying compressed air to vessel 1 and ejector 6 with a valve 8, three-way valves 9 and 10 and an air flow regulator 11 with a pressure gauge 12. A pipeline 14 with a valve 15 is provided for supplying liquid from the tank 13 to the vessel 1, and a valve 16 with the valve 17 for discharging the liquid from the vessel 1 The device is equipped with means for the vessel 1 communicates with the atmosphere, made in the form of a safety valve 18 mounted on the vessel, mounted on axis 19 with a nut 20 and connected with it by means of a double arm 21, a check valve 22 mounted on pipe 5 connecting the vessel 1 to the ejector 6 and rigidly connected with a float 4. The device operates as follows. In the initial position, the valve 22 opens the valve 18 is closed, the valves 15, 8 and 17 are closed. To fill the vessel 1 with liquid (paint), the pipeline 14 (receiving hose) is immersed in the paint container 13. The three-way valves 10 and 9 are placed in such a position that the compressed air from the network through the air flow regulator 11 enters the ejector nozzle 6 and the vessel 1 communicates with the vacuum chamber of the ejector through the open valve 22 (nozzle and vacuum chamber not shown). and after reaching a predetermined value in the vacuum vessel, the valve 15 is opened. The filling of the vessel with paint begins. When the specified paint level is reached, the float 4, floating up through the double-arm lever 21, moves the axis 19 and opens the safety valve 18, together with the vessel 1 with the atmosphere. At the same time, the valve 22 closes, disconnecting the vessel 1 from the dilution chamber of the ejector 6. The pressure in the vessel is equalized with the atmospheric pressure and the flow of liquid (paint) into the vessel is stopped, after which the valves 15 and 8 are closed. In order to dispense a liquid (paint) to the spray guns (not shown), rotating the nut 20 closes the safety valve 18. At the same time, the float 4 is recessed and the valve 22 opens. The taps 10, and 9 are set to the position when the compressed air from the network enters through the open valve 22 into the vessel 16, and the nozzle and the vacuum chamber of the ejector 6 are disconnected from the compressed air network and the vessel, and then the valve 17 is opened. ) is directed from the vessel 1 to the spray gun, and the coating is carried out. The use of the proposed device ensures its reliable operation and eliminates fire hazard. Apparatus of the Invention A device for receiving, displacing, and dispensing pressurized fluids, mainly paints, including a vessel with a lid, a broomstick and a float, an ejector connected to the vessel, supply pipelines to the vessel of compressed air and liquid and dispensing the liquid, and means for communicating the vessel to the atmosphere, characterized in that, in order to simplify the design and increase operational reliability, the means for communicating the vessel with the atmosphere is made in the form of a safety valve mounted on the vessel and associated with using a double-arm check valve lever mounted on the pipeline connecting the vessel to the ejector and rigidly connected to the float. Sources of information taken into account during the examination 1. USSR author's certificate No. 491411, cl. B 05 B 9/04, 1962. 2. USSR author's certificate for application No. 2934005 / 23-05, cl. B 05 B 9/04, 30.05.80 (prototype). WxV wi / n 51