SU1495359A1 - Acetylene generator - Google Patents

Abstract

The invention relates to the production of acetylene from calcium carbide and allows for easier maintenance due to the automatic charging of the water gate. The acetylene is released when the generator starts to work in the reaction chamber 5, passes through the washer 3 and is collected in the gas collector 15. The water is heated in the washer from acetylene and serves as a shutter protection at low temperatures. As acetylene is added to the gas collector 15, the pressure on the water increases and it is expelled from the washer 3 into the valve through an open valve. The lower end of the water inlet fitting is located above the bottom and below the control plug 14 of the washer 3. A check valve installed in the lower part of the shutter stabilizes the water level in the shutter. In the event of a backfire from the flame, the water column located in the gate localizes the propagation of the blast wave. 3 il.

Description

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acetylene and serves as a shutter protection at low temperatures. As acetylene is added to the gas collector 15, pressure on the water is applied and it is forced out of the washer 3 into the valve through an open valve. The lower end of the water inlet is located above the bottom and

The invention relates to an apparatus for producing acetylene gas by decomposing calcium carbide with water.

The aim of the invention is to simplify the service due to the automatic charging of the water gate. ,

Figure 1 shows the generator before starting work; figure 2 - the same, in operating mode; in FIG. 3, node I in FIG. 2

The generator has a cylindrical housing 1 divided by a partition 2 into a washer 3 and a pererestalny chamber 4. The reaction chamber 5 is bounded by a shaft 6 and is connected to the washer via a gas exhaust pipe 7. In the shaft of the reaction chamber there is a charged basket 8 fixed in the throat of the generator using a spring-loaded. rod 9. The throat is closed at the top with a cap 10. To seal the cover, use a rubber membrane 11.

Safety water shutter

12 is placed in the lower part of the industrial medium into the aqueous medium and communicates with it, with the lower end of the inlet nozzle

A water gate 12 is located above the bottom and below the control plug 14 of the nozzle 3. The upper part of the water gate is located in the gas collector 15 of the nozzle 3.

At the bottom of the safety shutter, 12, a check valve 16 is installed and a pipeline 17 is welded to drain water from the shutter. The pipeline 17 at the welding station to the generator case has windows 18 through which water is drained from the pant 3. The water from the plenum 12 is drained simultaneously with the water poured from the plow 3 with the plug 19 on the side of the generator open.

Below is the test plug 14, the washing body. 3. A check valve installed in the lower part of the gate ensures that the level of water in the gate is stabilized. In the event of a backfire from the flame, the water column located in the gate localizes the propagation of the blast wave. 3 il.

At the bottom of the generator there is a stopper 20 for the discharge of sludge from the reaction chamber, and a valve 21 is installed in the upper part of the generator for collecting acetylene.

The generator works as follows.

After opening Krshka 10 and closing the plugs 19 and 20, water is poured through the neck into the reaction chamber 5 until it flows from the stopper 14, after which the stopper is closed.

The basket 8 suspended on the lid 10 and loaded with carbide is placed in the reaction chamber 5 and the lid 10 is closed, while the water level in the washer and safety valve is shown by line BB.

When calcium carbide interacts with water, acetylene is released in the reaction chamber, which is collected in the free space of the reaction chamber 5, and then passes through the water column of the carrier 3 through the vapor tube 7, is cleaned of impurities and collected in the annular free space of the gas collector 15.

As the pressure of acetylene in the gas collector 15 increases, the pressure on the surface of the water in the washer 3 rises and water is forced out of it into the valve, in which, with the valve 21 open, the pressure is atmospheric.

The water seal is not filled with water before starting, but is filled automatically as the pressure of acetylene formed by the interaction of calcium carbide with water in the reaction chamber increases. Moreover, the gas at the initial moment from the reaction chamber 5 through the gas outlet pipe 7 enters the washer 3, bubbles through the water in the washer and goes to the gas collector. Directly

51495359

gas cannot flow from the gas outlet pipe to the gate, since they are separated by a layer of water, and gas escapes from the gas outlet pipe away from the gate. The gas from the gas outlet pipe 7 is bubbling through the water of the washer 3 along the path of least resistance, i.e. ver

ticking up, and in the gate, the gas is delivered only after the entire water layer, located in the discharger between the lower section of the inlet 13 and the control plug 14, moves to the gate, i.e. the water shutter will automatically charge.

The water safety gate is thus automatically charged as the gas is released at the initial moment of the generator start-up.

ilo, as far as gas is concerned, the water level in the washer decreases, and in the gate increases until the lower edge of the shutter is equal to the level of water in the cement. This moment is the beginning of gas extraction from the generator. The direction of gas movement in the generator is indicated by arrows.

The gas from the reaction chamber 5 through the gas outlet pipe 7 enters the gas reservoir 15. Then through the return. valve 16 goes to the charged safety shutter 12, bubbles through it and goes to the consumer. If there is no gas extraction, as the pressure in the reaction chamber 5 increases, water is displaced from it into the overflow chamber 4, which functions as a gas cushion . In addition, as the water level in chamber 5 decreases, the carbide lock with water decreases and the level of acetylene decreases. At the same time, the pressure of acetylene acts on the rubber membrane 11. It is pressed upwards and partially lifts the basket 8 out of the water, reducing its closure. It also reduces the release of acetylene. Thus, the gas cushion 4 and the membrane 11 operate simultaneously and allow smooth adjustment of the carbide lock with water.

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depending on the acetylene potion.

The proposed generator design provides the ability to automatically charge the water safety shutter before starting work, along with ensuring its frost resistance. This simplifies maintenance work and significantly increases the safety of this design, as welders do not always control the operation of the water safety shutter or do not fill it at all during the work. In this design, this is not possible, since the filling of the gate and the control of the water level in it are carried out automatically.

In the initial period of operation of the generator, when the pressure of acetylene formed by the interaction of calcium carbide with water in the reaction chamber increases, water from the washer flows into the gate. The water level in the gate then increases until the lower edge of the shutter opens in the washer. As soon as the water level in the scrubber reaches the lower edge of the shutter, acetylene will begin to bubble through the water in the shutter. The volume of the shutter is set so as to exclude the entrainment of water from it. When the extraction of acetylene from the generator is stopped, the check valve installed in the lower part of the gate will ensure the stabilization of the level in the gate. In the event of a backfire from the flame, the column of water located in the gate localizes the propagation of the surge wave,

Claims (1)

Invention Formula The acetylene generator, comprising a housing with a reaction chamber, an arm with a drain plug and a water seal with a lower inlet pipe located in the housing, is characterized by the fact that, in order to simplify service due to the automatic charging of the water seal, the lower end The water seal nozzle is located above the bottom and the low-pressure washer plug. ..I I FS / E.2