CN102200119A - Novel compressor - Google Patents

Abstract

A new type of compressor, consisting of a shell, a power source, a guide cover, a speed type compression device, a volume type compression device, an air intake pipe, and an exhaust pipe. Two different types of compression devices are arranged in the shell: a speed type compression device and a volume type compression device. By using two different types of compression devices in combination, the front end uses the large air intake volume of the speed type compressor to pre-compress the gas, and then uses the large output pressure of the volume type compression device to re-compress the pre-compressed gas, so that higher performance can be obtained under limited space, volume, and power.

Description

A new type of compressor

technical field

The invention relates to a novel compressor, which belongs to the optimization technology of the compressor.

Background technique

Existing compressors are mainly divided into two categories: speed type and volume type. These two types of compressors have their own advantages and disadvantages. The advantage of the speed type compressor is that the suction and discharge volume is large, but the output pressure is low; the advantage of the volumetric compressor is that the output pressure is large, and the disadvantage is that the suction and discharge volume is small. In order to further improve the output performance, the usual method is to increase the power, or to connect multiple compression devices of the same type in series to improve the output performance, such as a compressor with a double-rotor structure, a compressor with a double-scroll structure, and a multi-stage centrifugal compressor. compressor etc. None of these solutions take full advantage of the properties of the gas.

Therefore, it is necessary to find new compressors with higher efficiency.

Contents of the invention

The object of the present invention is to provide a new type of compressor which makes full use of gas characteristics to improve efficiency.

The technical solution of the present invention is: a new type of compressor, which is composed of a casing 1, a power source 2, a shroud 3, a speed type compression device 4, a volume type compression device 5, an air suction pipe 6, and an exhaust pipe 7. The housing 1 is provided with two different types of compression devices: a velocity type compression device 4 and a volume type compression device 5 .

In the direction from the suction pipe 6 to the exhaust pipe 7, the speed type compression device 4 is in front and the displacement type compression device 5 is in series connection on the same power shaft 21 of the power source 2 in sequence.

A shroud 3 is arranged around the speed-type compression device 4, and the shroud 3 divides the space in the casing 1 into a first-stage compression space 11 and a second-stage compression space 12, and the speed-type compression device 4 is located in the second stage. In the first-stage compression space 11 , the volumetric compression device 5 is located in the second-stage compression space 12 , and the first-stage compression space 11 and the second-stage compression space 12 communicate through the gas outlet end of the shroud 3 .

The wind deflector 3 is centered on the power shaft 21 .

The speed-type compression device 4 can be a centrifugal compression device or an axial flow compression device.

The volumetric compression device 5 may be a scroll compression device or a rotor compression device.

The beneficial effects of the present invention are:

1. Through the mixed use of two different types of compression devices, the front end uses the characteristics of the large suction volume of the speed type compressor to pre-compress the gas, and then uses the characteristics of the large output pressure of the volume type compression device to recompress the pre-compressed gas , so that higher performance can be obtained under limited space, volume and power.

Description of drawings

Fig. 1 is a front view structural schematic diagram of the present invention.

In the figure 1. shell, 11. first-stage compression space, 12. second-stage compression space, 2. power source, 21. power shaft, 3. shroud, 4. speed-type compression device, 5. volume-type compression Device, 6, suction pipe, 7, exhaust pipe.

Detailed ways

As shown in Figure 1, a new type of compressor is composed of a casing 1, a power source 2, a shroud 3, a speed type compression device 4, a volume type compression device 5, a suction pipe 6, and an exhaust pipe 7. 1 is provided with two different types of compression devices: a speed type compression device 4 and a volume type compression device 5 .

In the direction from the suction pipe 6 to the exhaust pipe 7, the speed type compression device 4 is in front and the displacement type compression device 5 is in series connection on the same power shaft 21 of the power source 2 in sequence. Through the mixed use of two different types of compression devices, the front end uses the characteristics of the large suction volume of the speed type compressor to pre-compress the gas, and then uses the characteristics of the large output pressure of the volume type compression device to recompress the pre-compressed gas. In this way, higher performance can be obtained under limited space, volume and power.

A shroud 3 is arranged around the speed-type compression device 4, and the shroud 3 divides the space in the casing 1 into a first-stage compression space 11 and a second-stage compression space 12, and the speed-type compression device 4 is located in the second stage. In the first-stage compression space 11 , the volumetric compression device 5 is located in the second-stage compression space 12 , and the first-stage compression space 11 and the second-stage compression space 12 communicate through the gas outlet end of the shroud 3 . The function of the shroud 3 is to divide the space into the first-stage compression space 11 and the second-stage compression space 12, and compress the gas entering the first-stage compression space from the suction pipe 6 through the speed-type compression device 4 , enters the second-stage compression space 12 from the air outlet end of the shroud 3, is further compressed by the volumetric compression device 5, and is finally transported out through the exhaust pipe 7.

The wind deflector 3 is centered on the power shaft 21, and its shape can be changed according to production requirements.

The speed-type compression device 4 can be a centrifugal compression device or an axial flow compression device.

The volumetric compression device 5 may be a scroll compression device or a rotor compression device.

The above-mentioned embodiments are only used to illustrate and explain the purpose of the present invention, rather than to limit the present invention. Those of ordinary skill in the art may make various changes or substitutions within the essential scope of the present invention, which shall also belong to the present invention. scope of protection for inventions.

Claims (6)

1. A new type of compressor, consisting of a casing (1), a power source (2), a shroud (3), a speed type compression device (4), a volume type compression device (5), an air suction pipe (6), The exhaust pipe (7) is composed of two different types of compression devices: a speed type compression device (4) and a volume type compression device (5). 2. A new type of compressor according to claim 1, characterized in that: in the direction from the suction pipe (6) to the discharge pipe (7), the speed type compression device (4) is in front, and the volume type compression The device (5) is connected in series on the same power shaft (21) of the power source (2) in the latter order. 3. A new type of compressor according to claim 2, characterized in that: a shroud (3) is arranged around the speed-type compression device (4), and the shroud (3) separates the The space is divided into a first-stage compression space (11) and a second-stage compression space (12), the velocity-type compression device (4) is located in the first-stage compression space (11), and the volume-type compression device (5) is located in In the second-stage compression space (12), the first-stage compression space (11) and the second-stage compression space (12) are communicated through the air outlet end of the shroud (3). 4. A new type of compressor according to claim 3, characterized in that: said shroud (3) takes the power shaft (21) as the axis. 5. A new type of compressor according to claim 3, characterized in that: the speed type compression device (4) can be a centrifugal type compression device or an axial flow type compression device 6. A new type of compressor according to claim 3, characterized in that: the volumetric compression device (5) can be a scroll compression device or a rotor compression device.

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