SU865437A2 - Device for cleaning hollow articles - Google Patents

Description

(54) DEVICE FOR CLEANING AND COMPLETE PRODUCTS

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The invention relates to mechanical engineering, can be used for cleaning hollow articles, mainly heating surfaces of boiler units, tanks, cylinders.

According to the main author. St. No. 728948 discloses a device for cleaning hollow articles, preferably heating surfaces of boiler units, tanks, cylinders, including an ejector, to the nozzle of which compressed gas (air) is supplied from a source, a vortex tube, to which the ejector diffuser outlet is connected, discharge pipe for supplying gas (air) from the hot end face of a vortex tube into the product, a recirculation pipe with a choke valve connected to the vacuum chamber of the ejector, and lock-in throttles A pilot valve connecting the section of the recirculation pipe between the valve on it and the ejector with the atmosphere 1.

However, the known device does not improve the performance of the cleaning process.

The purpose of the invention is to increase the cleaning performance.

The goal is achieved by the fact that the device is additionally equipped with a vortex tube, the nozzle block of which is connected to the cold end of the vortex tube connected to the discharge pipeline, and its hot end is connected to the vacuum chamber of the ejector.

The drawing shows a diagram of the proposed device.

The device includes a vortex tube 1,

10 nozzle block 2 which is connected to the outlet of the ejector 3, and to the nozzle of the ejector 3 through the valve 4 through the pipeline 5 summed compressed gas (air) from the main duct or fan. A hot air supply pipe 7 for cleaning products is connected to the hot end 6 of the vortex tube, and a cold air exhaust pipe 9 is connected to the cold end 8 of the vortex tube 1. A recirculation 20 10 pipe is connected to the vacuum chamber of the ejector 3 to return pumped through the product 11 flow of hot air. To increase the possibility of adjusting the operating modes on the pipeline 10, a shut-off throttling valve 12 is installed, and a section of the pipeline 10 between the valve 12 and the ejector 3 through the shut-off throttle valve 13 is in communication with the atmosphere.

The device works as follows.

To open the valve 4, the compressed gas (air) from the line through the pipeline 5 enters the ejector nozzle 3. The high velocity velocity of the ejector 3 leaves the gas (air) flow in the ejector chamber to discharge 3.

Due to the pressure difference formed, gas (air) from the cavity of product 11 enters the chamber of ejector 3 through conduit 10, the air from the exit of the hot end 16 of the additional vortex tube 15 through conduit 18, and atmospheric air through valve 12 and part of conduit 10. From of the ejector 3, the air mixture enters the nozzle block 2 of the vortex tube 1, receives a rotational motion and enters the vortex tube 1 in the form of a free vortex, in which the gas (air) is split into hot and cold streams. From the exit of the hot end 6 of the vortex tube 1, the flow of heated gas (air) through the pipeline 7 enters the cavity of the product 11, gives off some of the heat and returns through the recirculation pipe 10 with the valve 12 to the vacuum chamber of the ejector 3. From the outlet of the cold end 8 the vortex pipes 1 the flow of cooled gas (air) through the pipeline 9 enters the nozzle block 14 of the additional vortex tube 15, in which the gas (air) is also split into hot and cold streams. From the exit of the hot end 16 of the additional vortex tube 15, the purified gas (air) flow with an elevated temperature through the pipeline 18 through the stop-throttling valve 17 enters the dilution chamber of the ejector 3. The cold gas flow (air) from the cold end 19 exit of the additional vortex tube

15 through, line 20 is emitted to the atmosphere. Adjusting the cleaning mode of the product 11 is carried out by adjusting the operating modes of the vortex tubes 1 and 15, as well as by adjusting the flow of atmospheric air by the valve 13.

The use of the proposed invention will not only clear a part of the stream withdrawn from the cold end of the main vortex tube, but also significantly

raise its temperature. Recirculation of this part of the flow will increase the rate of increase in the temperature of the air drawn from the hot end of the main vortex tube to purge the product and will increase the speed and performance.

cleaning of hollow products without additional energy or other costs.

Claims (1)

Invention Formula A device for cleaning hollow articles according to ed. St. No. 728948, characterized in that, in order to increase productivity, it is additionally equipped with a vortex tube, the nozzle block of which is connected to the cold end of the vortex tube connected to the discharge pipeline, and its hot end is connected to the vacuum chamber of the ejector. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 728948, c. В 08 В 9/02, 1978.