JPS62233459A - Turbine type gas compressor - Google Patents

Abstract

PURPOSE:To obtain a lightweight and highly efficient compressor, by using an axial-flow turbine to divide air fed under pressure into an air compressing chamber, into two parts to apply a torque to a combustion turbine, and by mixing exhaust gas and air to cool exhaust gas. CONSTITUTION:When fuel is injected and ignited, air is compressed successively through rotor blades 2, inclined air passages or several stages of turbines or the like, and is then introduced into a compressing chamber 3. At this time the most part of air flows through holes 4 and a ventilating cylinder, and is jetted from a jet port 6 while the remainder of air is injected into a combustion chamber 8 through a gap 7. Further fuel jetted from the a nozzle 9 is ignited and burnt to produce high pressure gas which rotates a turbine rotor 12 by means of drive stationary vanes 10 and rotor blades 11. At this time exhaust gas having a high temperature is mixed with a large amount of air in an air-gas mixing chamber 13 to be cooled down to lower the temperature of the gas.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention is based on a private pressurized airship (Patent Application No. 15 of 1982).
1566) (which requires a large amount of compression in a short period of time), but it can also be fully utilized for general industrial purposes.

(Prior art) Piston-type air compressors (also called compressors) are the main type, and there are also rotary sets and recently invented screw sets, but these are heavy compared to the amount of compressed air and have low compression speeds.

For example, even with the latest Denyo screw compressor, the maximum pressure cuff hg/d, the discharge air volume, and the
．． 1, but it weighs 1000 kg.

These factors are generally considered to include the use of a reciprocating engine or electric mode, and the fact that the compressor and the engine that drives it are separate.

(Problem to be solved by the invention) Instead of such a heavy and inefficient compressor, the compressor and engine are integrated by making full use of the high performance of the turbine, and the amount of gas discharged per minute can be increased by several times per minute. Moreover, it is intended to be much lighter in weight.

(Means for solving the problem) In order to achieve the above goal 1-1, compressed air is created using an axial flow turbine similar to a jet engine, and the exhaust gas of the engine is also mixed in to make the air even more compressed air. This is a gas compressor with high-speed input capacity.

Since this compressor does not utilize shaft output like a turboprop, most of the combustion energy is used for air compression.

Of course, as will be explained later, it is also possible to extract only the compressed air without mixing in the exhaust air.

(Example) To explain the function using figures, Figure 1 is a cross-sectional view of the engine, which looks like a jet engine, and when fuel is injected and ignited,
Air is gradually compressed by the rotary blade (2), the inclination of the air passage, the number of stages of the turbine, etc., and is then pressurized into the compression chamber (3).

Here, most of the water passes through appropriately arranged holes (4), passes through the ventilation pipe (5), and is ejected from the ejection port (6). On the other hand (7
) is injected into the combustion chamber (8) at high speed. Here, fuel is injected from the nozzle (9) and is appropriately ignited and combusted to generate high pressure gas.

This gas is supplied to the driving fixed blade (101) and the rotary blade (11).
, which are also called blades, pass through the turbine rotating body (
12) Rotate. This rotating body is supported by a frame such as a fixed wing.

This rotational power does not use shaft horsepower like other types, so it is used only for air compression, so only relatively small horsepower is required.

Therefore, although the gas discharged at this time has a high temperature, it is mixed with a large amount of air in the air/gas mixing chamber (13) and cooled to lower its temperature.

For example, the amount of air is several times that of exhaust gas.

The greater the cooling, the better, and the contraction of the exhaust gas increases the driving efficiency of the turbine.

Incidentally, this mixed gas is ejected from the discharge port (14) with considerable pressure and speed, and is used for the purpose.

Pressurized airships are made of carbon fiber and Tyranno fiber, which are extremely heat-resistant materials (500 to 1000°C), so pressurized gas can reach 20°C.
It is okay if it is around 0'C, but if it is used for general industrial purposes, it may be possible to install a radiator next to the discharge port to supply cooled gas.

(15) is a heat insulating material to prevent the heat of the combustion chamber from being transmitted to the ventilation pipe (5) as much as possible.

If only compressed air (excluding exhaust) is required, the exhaust can be discharged directly into the air and a compressed air outlet (16) or the like can be installed at the tip of the ventilation cylinder (5), as shown in Figure 2. However, there is a risk of air leakage at this joint, so it is not suitable for high pressure applications.

The gap (7) should be designed so that enough air can be inserted to secure the turbine rotational force, and it should be designed to avoid idling or lack of rotational force, and to maximize the double combustion efficiency. There must be. An adjustment device may be provided in some cases.

Furthermore, although the number of stages of the turbine blades is simply shown in the figure, it is determined by fully considering the compression pressure and discharge capacity of the gas.

(Effects of the invention) 1. The compressor and engine are integrated by utilizing the generally recognized benign nature of the turbine (explanation omitted).
It generates a large amount of compressed gas in a short time at high speed, and is light in weight.

2. Easy to draw because the compressor and engine are integrated.
It has high mechanical strength and high fuel efficiency relative to the amount of compressed gas.

3. Due to the relationship between rotational speed and torque, which are characteristics of turbines, when gas is injected into the air bladder of a pressurized airship or a commonly used pressure storage tank, there is no pressure at first, so a turbine rotates at high speed and pumps a large amount of gas. As the pressure gradually increases, the rotation speed decreases, but the torque increases, and there is little fluctuation in the injected gas.This relationship is established automatically, but in a reciprocating engine type for general use, there is no relationship with the pressure. The rotational speed is almost constant, the amount of pressure is small at low pressure, and when the pressure gets a little high, the engine will shut down.

4. Even when considering the gas discharged from this machine, although the amount of exhaust gas is a fraction of the total, there is little oxygen (it is similar to normal air, such as water and carbon dioxide (1.5 times heavier than air)). Because there will be more
Since the weight increases and the flammability decreases, it is convenient and preferable for pressurized airships to descend.

5. When only compressed air is produced as shown in Figure 2, even if the exhaust gas is released directly into the air, compared to a reciprocating engine, there are fewer toxic gases such as nitrogen dioxide (and the environment is less likely to deteriorate).

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an example of the present invention, and FIG. 2 is a partial view of the combustion chamber and subsequent parts of FIG. 1.

Claims (2)

[Claims] (1) Using an axial flow turbine, the air pressurized into the compressed air chamber is divided into two parts, most of which is guided to the jet port through the internal ventilation side, and some of which is sent to the combustion chamber to supply fuel to the combustion turbine and generate rotational force. Furthermore, a gas compressor cools the exhaust gas by mixing the exhaust gas and air in a mixing chamber, and jets out the same pressure and velocity from the outlet. (2) In the case of compressing only air, as shown in Figure 2, the exhaust gas is directly discharged after its use, and an outlet is provided so that the end of the ventilation cylinder can be rotated, and the other parts are the same as (1).