SU1592363A1 - Apparatus for therma-pulse treating of articles - Google Patents

Description

The invention relates to heat engineering and can be used in the implementation of the processes of surface hardening of steel products, removal of burrs and other surface defects of products in the environment of the products of the explosion of the air-fuel mixture. The purpose of the invention is to increase reliability

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and the efficiency of the device.

The effect due to lower tempera-1 exhaust stages, additional ^1-cooled and flushing valve, ventilation of the apparatus and the heat chamber zone. The device comprises a housing fixed on the outside of the base of the chamber with a vertical outlet channel in the form of cylindrical wide, conical and cylindrical narrow parts connected from top to bottom, a piston located in the lower cylinder, a water supply system with a block for maintaining the level at a predetermined value. A cylindrical bushing is installed along the channel axis, closed on the base of the chamber with a replint. ®

the outer side and the communicating chamber / channel in its conical part and the working surface of the piston. 1 il. (

The invention relates to heat engineering and can be used in the implementation of the processes of surface hardening of steel products, removal of burrs and other surface defects of products in the environment of the products of the explosion of the air-fuel mixture.

The purpose of the invention is to improve the reliability and efficiency of the device by lowering the temperature of the exhaust · full gases, intensive flushing of the valve with water, additional valve; thermal chamber.

The drawing shows a device for thermopulse. Processing products, the cut.

The device contains a heat chamber 1, closed by the base 2 and the valve of the release of hot products, explosion

3. In the valve body 4, a channel 5 is made and a stepped piston 6 is located. Inside the socket, there is a guide sleeve 7, which forms an annular gap with the channel walls

8. The sleeve informs the heat chamber with the valve.

The valve is equipped with a system 9 that regulates the flow of water connected to the mouth of the channel and maintains a certain level in it. Valve release hot products of the explosion is installed in the protective chamber 10, _

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- the internal cavity of which communicates with the cavity of the stepped piston through the drain holes 11, overlapped by this piston. The protective chamber is equipped with a water discharge pipe 12 and a vent pipe 13. The product 14 processed in the heat chamber is installed on the base,

The device works as follows.

The workpiece 14 is installed on the base 2. The valve 3 of the release of hot products of the explosion is closed, the water supply control system 15 fills the channel 5 with water to a predetermined level. Heat chamber 1 is sealed with base 2 and filled with components of the combustible mixture. After the combustible mixture is ignited, a high temperature is created in the 20th chamber, which ensures calcination of steel products to a certain depth, removal of burrs and other surface defects from products made of various materials. The pressure of the explosion in the heat chamber 1 through the filled-bell water is transmitted to the stepped piston 6, setting the latter in motion and opening the drain holes 11; thirty

The hot products of the explosion, flowing over the sleeve 7, create in the annular

- gap 8 high dilution zone

(vacuum) due to the fact that in this zone the exhaust jet has a minimum cross section, maximum speed and lowest pressure, At

• this, water is supplied to the high dilution zone from system 9, which regulates its supply, the mass of which can be more than 5 times greater than the mass of the combustible mixture in heat chamber 1. This water is carried by hot gases to the cavity of the Protective chamber 10 through open drain holes 11 45

After the expiration of the main mass of the combustion products in the heat chamber, a certain volume of exhaust gases remains with pressure equal to atmospheric and a high content of oxides of the material being processed (2-5 and more times the sanitary permissible levels of air ^emissions in the working area ⁾ . 55

However, the adjustable water supply system 9 continues to supply water to the plant · rub 5, which allows the valve to be flushed,

3 from pollution and also due to

created in the lower cavity of the sleeve 7 of the vacuum to suck out the remnants of gas and air with harmful impurities from the heat chamber 1. After this, the heat chamber 1 is depressurized with the base 2 and the air is already sucked out from the entire working area.

The waste products of combustion, and then the wash water after opening the valve 3 pbatuyat through the drain port 11 into the protective chamber 10, where they are removed through the ventilation pipe 13 and the water discharge pipe 12. After removing the finished product 14 and installing the next part on the base 2, the working cycle repeats.

The proposed device allows to reduce the temperature of the exhaust gas -. ί call three or more times / due to I, which eliminates overheating of the machined part, provides additional | cooling of the valve and its washing, ventilation of the heat chamber and the working 1 zone of the installation. Reliable and efficient operation of the valve for the release of hot explosive products allows one to form thin установке products and also products made of light 1

fusible materials, improves the ventilation of the heat chamber, which reduces installation downtime and the cost of its maintenance and increases the efficiency of the installation.

Claims (1)

Claim A device for thermopulse treatment of products, comprising a housing mounted on the base of the heat chamber and installed on the outside of the heat chamber with a cylindrical cavity narrowed downwards and an outlet cylindrical channel, a piston placed in the outlet cylindrical channel, and a system. that, in order to increase reliability and efficiency, the device is equipped with a cylindrical guide bushing installed in the upper part of the body along its vertical axis and attached to The chamber is equipped with a through axial bore in the base, and the water supply system is equipped with a unit that maintains a constant level in the housing. 1592363 ι