RU119812U1 - STEAM GAS GENERATOR - Google Patents

Abstract

1. A steam and gas generator containing a combustion chamber, an evaporation chamber, an ignition device, a ballasting agent supply device, characterized in that the ballasting agent supply device is made in the form of an ejector or a tangential swirler. ! 2. The steam and gas generator according to claim 1, characterized in that the tangential swirler is made in the form of a superheating chamber with a nozzle, the outlet of which is located tangentially to the axis of the outlet channel of the evaporator.

Description

The utility model relates to power engineering, and in particular to methods of operation and design of steam and gas generators.

One of the problems currently facing the field of technology is the problem of the efficiency of power plants, increasing their efficiency and reliability.

A device is known for producing high-temperature steam (see AS USSR No. 168962), comprising a housing with outlet pipes for a gas-vapor mixture and a burner device located inside.

Known steam and gas generator, comprising a housing with an outlet pipe for a gas mixture, a cylindrical combustion chamber with a burner, a mixing chamber, nozzles, flow swirls (see RF patent No. 2283456 dated February 12, 2004, IPC F22B 1/22)

A common disadvantage of the known technical devices is their insufficient work efficiency, design complexity and low reliability at high thermal loads of structural elements.

A steam and gas generator is known comprising a combustion chamber, an ignition device, an evaporation chamber, a water supply located in the upper part of the combustion chamber and made in the form of a sleeve with tangential channels for swirling the water flow and forming a vortex-like shell, and a diaphragm is installed in the evaporation chamber (see RF applications No. 2008105213 dated 02/11/08, IPC F02C 6/18 - prototype.)

A disadvantage of the known solution is the significant thermal load on the structural elements and insufficient work efficiency.

The aim of the proposed technical solution is to eliminate these drawbacks, namely increasing efficiency, reducing thermal loads on structural elements of the device due to more efficient cooling.

This goal is achieved due to the fact that in the known steam and gas generator containing a combustion chamber, an evaporation chamber, an ignition device, according to a utility model, a device for supplying a ballasting material is installed at the outlet of the steam and gas generator, for example: an ejector, or an injector, or a tangential swirler.

The tangential swirl is made in the form of an overheating chamber with a nozzle, the output of which is located tangentially to the axis of the output channel of the evaporator.

The scheme of the proposed device is presented in figure 1, where:

1 - combustion chamber;

2 - mixing head;

3 - evaporation chamber;

4 - ignition device;

5 - oxidizer supply line;

6 - fuel supply line;

7 - water supply line;

8 - ejector;

9 - throttle washer

A mixing head 2 is connected to the body of the combustion chamber 1 on one side and an evaporation chamber 3 on the other. In addition, the steam and gas generator is equipped with an ignition device 4 with a spark plug, oxidizer 5, fuel 6 and water 7 supply lines, as well as pressure and temperature sensors.

The output device for outputting high-temperature steam is made in the form of a confuser, to which an ejector 8 is connected, equipped with a throttle washer 9 at the output.

Before starting the operation of the device, the water supply line 7 opens. Then, through the oxidizer lines 5 and 6, the components are supplied to the mixing head 2. The ignition device 4 ignites them with the help of a candle. The components are burned inside the combustion chamber 1, and the combustion products enter the evaporation chamber 3 and then into the ejector 8 as a working fluid. Due to the occurrence of a vacuum, a ballasting substance begins to flow into the ejector 8, which can be, for example, water vapor, on the saturation line which, when mixed with the working body of the ejector 8 (combustion products of the components), reduces their temperature while facilitating the operation mode of the output units of the device and as superheated steam exits through the regulating throttle washer 9 for further use. Depending on the need, gases, oxides, liquid substances, etc. can be used as ballasting agents.

Figure 2 presents the second variant of the proposed technical solution where:

1 - combustion chamber;

2 - mixing head;

3 - evaporation chamber;

4 - ignition device;

5 - oxidizer supply line;

6 - fuel supply line;

7 - water supply line;

9 - throttle washer;

10 - overheating chamber;

11 - nozzle;

12 - tangential swirl;

In this case, instead of an ejector 8 (see Fig. 1), a tangential swirler 12 is installed at the outlet of the steam-gas generator, made in the form of an overheating chamber 10 with a nozzle 11, the output of which is located tangentially to the axis of the output channel of the evaporator 3.

Its work is similar to the work of the first option, except that the ballasting substance is supplied under some pressure to the steam overheating chamber 10 through the nozzle 11, where it mixes with the combustion products, lowering their temperature and thereby increasing the efficiency of the gas generator.

Thus, the use of the proposed utility model will reduce thermal loads on structural elements and increase the efficiency of the device.

Claims (2)

1. Steam and gas generator containing a combustion chamber, an evaporation chamber, an ignition device, a device for supplying a ballasting substance, characterized in that the device for supplying a ballasting substance is made in the form of an ejector or tangential swirl. 2. The steam and gas generator according to claim 1, characterized in that the tangential swirl is made in the form of an overheating chamber with a nozzle, the output of which is located tangentially to the axis of the output channel of the evaporator.