CN211874808U

CN211874808U - Inner duct axial flow type fluid compressor

Info

Publication number: CN211874808U
Application number: CN202020331414.3U
Authority: CN
Inventors: 黄庆
Original assignee: Shanghai Xiantong Ind Co ltd
Current assignee: Shanghai Xiantong Ind Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-11-06
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses an inner duct axial-flow type fluid compressor, include the base and install first casing, the second casing on the base through the bolt, the left side of first casing is provided with the air inlet, the internally mounted of first casing has the inner duct rotor, and the compression intracavity in the inner duct rotor is provided with the multistage blading integrative with the letter way inner wall of inner duct rotor, be provided with the gear on the inner duct rotor between first casing and the second casing, the internally mounted of second casing has the diffuser, and the upper end of second casing is provided with the gas vent. The utility model has the advantages that the whole structure is simple, the power range can cover the mainstream middle and small models in the market, the operation is reliable, the running cost is low, the efficiency is high, the manufacturing process requirement is simple, the cost is low, the maintenance is convenient, the easy-to-damage parts are few, the energy consumption is low, the service life is long, and the application range is extensive.

Description

Inner duct axial flow type fluid compressor

Technical Field

The utility model relates to a compressor specifically is an inner duct axial-flow type fluid compressor.

Background

Fluid compressors have been widely used in many fields such as petrochemical industry, energy, steel, electric power, metallurgy, shipbuilding, electronics, textile, mining, light industry, mechanical manufacturing, military science and technology, aerospace, infrastructure, etc. at present, the compressors raise fluid pressure by mechanical work, raise the suction pressure state to the discharge pressure state, and there are 5 types of compressors at present: reciprocating, screw, rotary, scroll, and axial flow.

The existing axial compressor belongs to a speed type compressor, and the working principle of the existing axial compressor is that the blades rotating at a high speed do work on gas, the flowing speed of the gas is greatly improved, and then the kinetic energy is converted into pressure energy. The axial flow compressor is mainly applied to the field of large flow demand, and has the advantages of simple structure, stable performance, low energy consumption, simple maintenance, long service life and the like.

However, the axial flow compressor has complicated blade profile, the largest volume is the rotor and the casing, the requirement on manufacturing process is high, the manufacturing cost is high, and the axial flow compressor cannot be applied in small flow and miniaturization, so the flow is 30m at present³The medium-large compressor with the pressure of more than/min/8.0 bar is mainly a centrifugal compressor, and has the defects of high manufacturing cost and high maintenance cost. The flow rate is 1m³The small compressor above/min/8.0 bar mainly comprises a screw machine type compressor, a vortex type compressor, a piston type compressor and a sliding sheet type compressor, and has the advantages of mature technology, low manufacturing cost, simpler maintenance and high energy consumption, more easily damaged parts, more used consumables and high use cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an inner duct axial-flow type fluid compressor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an inner duct axial flow type fluid compressor comprises a base, a first shell and a second shell, wherein the first shell and the second shell are mounted on the base through bolts, an air inlet is formed in the left side of the first shell, an inner duct rotor is mounted inside the first shell, a multi-stage blade group integrated with the inner wall of a duct of the inner duct rotor is arranged in a compression cavity in the inner duct rotor, a gear is arranged on the inner duct rotor between the first shell and the second shell, a diffuser is mounted inside the second shell, and an air outlet is formed in the upper end of the second shell; a first sealing element, a thrust bearing and a first radial bearing are sequentially arranged between the left side of the inner duct rotor and the first shell from left to right, a second radial bearing and a second sealing element are sequentially arranged between the right side of the inner duct rotor and the first shell from left to right, and a third sealing element and a third radial bearing are sequentially arranged between the right end of the inner duct rotor and the second shell from left to right.

Preferably, the blade group is provided with 16 stages.

Preferably, a motor is further connected to the gear.

Preferably, the inner duct axial flow fluid compressor is further provided with a PLC intelligent control device or a variable frequency control device.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an inner duct compression cavity design, blade group and compression cavity integration are made as the rotor in same duct to great reduction the rotor volume, obtained axial compressor's excellent performance, all can use from the malleation field to the negative pressure vacuum field, also can be in wide application on middle-size and small-size flow market.

Drawings

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

In the figure: 1-a first housing; 2-a second housing; 3-a base; 4-a bolt; 5-an air inlet; 6-a endoprosthesis rotor; 7-a compression chamber; 8-blade set; 9-gear; 10-a diffuser; 11-an exhaust port; 12-a first seal; 13-a thrust bearing; 14-a first radial bearing; 15-a second radial bearing; 16-a second seal; 17-a third seal; 18-third radial bearing.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1, an inner duct axial flow fluid compressor includes a base 3, and a first casing 1 and a second casing 2 mounted on the base 3 through bolts 4, wherein an air inlet 5 is provided on the left side of the first casing 1, an inner duct rotor 6 is mounted inside the first casing 1, a 16-stage blade group 8 integrated with the duct inner wall of the inner duct rotor 6 is provided in a compression cavity 7 in the inner duct rotor 6, a gear 9 is provided on the inner duct rotor 6 between the first casing 1 and the second casing 2, the gear 9 is further connected with a motor, a diffuser 10 is mounted inside the second casing 2, and an exhaust port 11 is provided at the upper end of the second casing 2; a first sealing element 12, a thrust bearing 13 and a first radial bearing 14 are sequentially installed between the left side of the inner duct rotor 6 and the first shell 1 from left to right, a second radial bearing 15 and a second sealing element 16 are sequentially installed between the right side of the inner duct rotor 6 and the first shell 1 from left to right, and a third sealing element 17 and a third radial bearing 18 are sequentially installed between the right end of the inner duct rotor 6 and the second shell 2 from left to right. The inner duct axial flow type fluid compressor is also provided with a PLC intelligent control device or a variable frequency control device.

The inner duct rotor 6 is made of hollow metal, the first shell 1 is made of metal, the second shell 2 is of a metal shell structure, after the assembly is completed, the compressor can be directly started to operate according to preset technical parameters such as flow, pressure and temperature, and the required flow and pressure can be realized by adjusting the rotating speed of the rotor driven by the motor; when the internal bypass rotor is in operation, a medium is sucked from the air inlet 5, enters the compression cavity 7 of the internal bypass rotor 6, enters the diffuser 10 for diffusion and deceleration after being compressed, and is discharged from the air outlet 11 to enter an application process.

The utility model has the advantages that the whole structure is simple, the power range can cover the mainstream middle and small models in the market, the operation is reliable, the running cost is low, the efficiency is high, the manufacturing process requirement is simple, the cost is low, the maintenance is convenient, the easy-to-damage parts are few, the energy consumption is low, the service life is long, and the application range is extensive.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The inner duct axial flow type fluid compressor comprises a base (3), a first shell (1) and a second shell (2) which are installed on the base (3) through bolts (4), and is characterized in that an air inlet (5) is formed in the left side of the first shell (1), an inner duct rotor (6) is installed inside the first shell (1), a multi-stage blade group (8) integrated with the duct inner wall of the inner duct rotor (6) is arranged in a compression cavity (7) in the inner duct rotor (6), a gear (9) is arranged on the inner duct rotor (6) between the first shell (1) and the second shell (2), a diffuser (10) is installed inside the second shell (2), and an exhaust port (11) is formed in the upper end of the second shell (2); install first sealing member (12), thrust bearing (13) and first radial bearing (14) from left to right between left side of interior duct rotor (6) and first casing (1) in proper order, install second radial bearing (15) and second sealing member (16) from left to right between the right side of interior duct rotor (6) and first casing (1) in proper order, install third sealing member (17) and third radial bearing (18) from left to right between the right-hand member of interior duct rotor (6) and second casing (2) in proper order.

2. The endoprosthesis axial fluid compressor according to claim 1, characterized in that the blade group (8) is provided with 16 stages.

3. Endoprosthesis axial fluid compressor according to claim 1, characterised in that an electric motor is also connected to the gear (9).

4. The endoprosthesis axial flow fluid compressor of claim 1, further comprising a PLC intelligent control device or a variable frequency control device.