WO2009018724A1

WO2009018724A1 - A blower or an air inducing device

Info

Publication number: WO2009018724A1
Application number: PCT/CN2008/001632
Authority: WO
Inventors: Daming Li; Zhiquan Zhang; Jun Ji
Original assignee: Xi'an Unionfilter Purification Equipment Co., Ltd.
Priority date: 2007-07-20
Filing date: 2008-09-22
Publication date: 2009-02-12
Also published as: CN201090442Y

Abstract

A blower or an air inducing device includes a fan (1), and a driving device (3) connecting with the fan (1), wherein the fan (1) is placed in a chamber (201) of a pressure container (2), a container air inlet (202) and a container air outlet (204) are provided on the pressure container (2), an air inlet (101) of the fan (1) is communicated with the chamber (201) of the pressure container (2), an air outlet (102) of the fan (1) is communicated with the container air outlet (204) of the pressure container (2) through a connecting pipe (4). The device can work under high pressure, and can transport flammable, explosive and poisonous harmful gas.

Description

Blasting or air guiding device

The invention relates to the field of wind turbines, in particular to an air blowing or air guiding device.

Background technique

Fans commonly used in the industry include centrifugal fans, axial fans, vortex fans, and Roots wind turbines. In different operating conditions, fans can be used for blasting or for introducing air. Regardless of the type of fan, there is an air inlet and an exhaust port. Air or process gas enters the fan casing through the air inlet, and the pressure is raised by the fan, and then discharged from the exhaust port. The pressure of the exhaust gas is higher than that of the suction gas. Pressure, the difference is generally called boost. The boosting of different fans is different. The boosting of the fan is used to overcome the system resistance in the industrial device to complete certain processes, and the pressure of the working gas is different in different processes. The working pressure of the fan includes the boost of the fan and the pressure of the suction gas. For a selected fan, the boost is a certain value.

Due to its structure and materials, the normal wind turbine can withstand a small working pressure, usually less than 0.1MP. If the pressure of the working gas is high, the fan casing is easily damaged. Therefore, the application range of the conventional fan is limited to a certain extent, that is, the existing ordinary fan can only be used in a case where the working gas pressure is low. In some cases, it is often necessary to pressurize the higher pressure working gas again. For the above reasons, it is now necessary to use a compressor to solve this problem. However, the compression ratio and energy consumption of the compressor that delivers the same gas flow rate are much higher than that of the fan, that is, the compressor is not suitable for the low pressure reduction ratio, and the cost of the compressor is much higher than that of the fan.

In other fields, there are so-called high-pressure fans working in a high-pressure environment. The structure is not only large and complex, but also has a large footprint and high cost. Moreover, it can only work under certain pressure conditions, that is, its so-called "high pressure" is Limitations.

Summary of the invention

The technical problem mainly solved by the present invention is to provide a blast or air guiding device which can work under high working gas pressure, in view of the disadvantage that the existing fan can not work under high pressure.

The technical solution to solve the above problems is:

An air blower or air intake device includes a fan 1, and a drive device 3 connected to the fan 1, which is special in that: the fan 1 is disposed in a cavity 201 of the pressure vessel 2, the pressure

- 1 - Confirmation The container 2 is provided with a container inlet 202 and a container outlet 204, the inlet 101 of the fan 1 is in communication with the chamber 201 of the pressure vessel 2, and the exhaust 13102 of the fan 1 is passed through a connecting tube. .. 4. Connected to the container exhaust port 204 of the pressure vessel 2.

For ease of manufacture and installation, the pressure vessel 2 described above may be formed by a container body 205 and a container end cap 203 disposed at an end of the container body 205. The container vent 204 is disposed on the container end cap 203. Preferably, the container vent 204 may also be disposed on the container body 205.

The drive unit 3 described above can be disposed inside the cavity 201 of the pressure vessel 2.

The fan 1 described above can be specifically fixed in the cavity 201 through the bracket 5.

The container inlet 202 of the pressure vessel 2 described above may be placed on the vessel end cap 203 or the vessel body 205 depending on the installation of the work equipment.

The driving device 3 of the present invention can also be disposed outside the cavity 201 of the pressure vessel 2.

Preferably, the drive unit 3 is connected to the blower 1 via the magnetic actuator 6.

The drive unit 3 described above can also be connected to the fan 1 via the output shaft of the drive unit.

The container inlet 202 of the pressure vessel 2 described above may be disposed on the vessel end cap 203 or the vessel body 205.

The invention has the following advantages:

Compared with the prior art, the invention installs the fan in the pressure vessel, and the fan inlet directly draws in gas from the inside of the container, and the use thereof is not restricted by the pressure of the working gas, and can be operated under high pressure or lower. Work under pressure. The present invention adopts the above simple method, and can change the ordinary fan into a fan which can work under a high pressure environment without changing the original structure of the fan. The present invention reduces the cost and energy consumption of existing high pressure operation. When the working gas passes through the ordinary fan, gas leakage is easily generated, and the present invention installs the fan in the pressure vessel. Even if the fan leaks, the leaked gas is enclosed inside the pressure vessel, and the normal operation of the fan is not affected. Achieve "zero leakage" of the fan to the environment. The invention is suitable for conveying various gases, and is particularly suitable for conveying flammable, explosive, toxic, harmful gases and the like.

DRAWINGS

1 is a schematic structural view of an embodiment of the present invention;

2 is a schematic structural view of another embodiment of the present invention.

detailed description: The working gas of the invention enters the pressure vessel from the inlet of the pressure vessel, and then enters the fan through the inlet of the fan, and then is discharged from the exhaust port of the fan. If the working gas pressure is high, the pressure vessel is a high-pressure environment, and the entire fan is in a high-pressure environment. From the perspective of force balance, the fan casing and other components are not subject to high working gas pressure. Damage to the machine ensures that the fan can still operate normally with high working gas pressure.

An embodiment of the invention is illustrated in Figure 1:

The fan 1 is connected to the driving device 3, and the fan 1 is disposed in the cavity 201 of the pressure vessel 2, and the fan 1 can be specifically fixed in the cavity 201 through the bracket 5. The driving device 3 is disposed inside the cavity 201 of the pressure vessel 2. The pressure vessel 2 is provided with a container inlet 202 and a container outlet 204. The inlet 101 of the fan 1 communicates with the cavity 201 of the pressure vessel 2, and the exhaust port 102 of the fan 1 passes through the connecting tube 4 and the pressure vessel. The container exhaust port 204 of 2 is in communication. The connecting tube 4 can be a steel tube, a bellows, a braided hose or other hose. For ease of manufacture and installation, the pressure vessel 2 may be formed by a container body 205 and a container end cap 203 disposed at an end of the container body 205, and the container vent 204 is preferably disposed on the container end cap 203; the container vent 204 It can also be disposed on the container body 205. The container inlet 202 of the pressure vessel 2 can be disposed on the vessel end cap 203 or the vessel body 205 depending on the installation of the work equipment. The connection between the exhaust port 102 of the blower 1, the connecting pipe 4, and the exhaust port 204 of the container may be flanged, screwed, ferrule, flared or directly welded. This embodiment of the invention can achieve a "zero leakage" of the fan to the environment.

When the "zero leakage" operation of the fan to the environment is realized, air or process gas enters the inside of the cavity 201 of the pressure vessel 2 from the inlet port 202 of the container, and the gas is filled with the gas while the gas is also filled by the fan 1 The air inlet 101 enters the fan 1, is lifted by the fan 1, and is then exhausted by the exhaust port 102 of the fan 1, and then discharged through the connecting pipe 4 through the container exhaust port 204.

Another embodiment of the present invention is shown in Fig. 2: The driving device 3 is disposed outside the cavity 201 of the pressure vessel 2. The drive unit 3 can be connected to the fan 1 via the output shaft of the drive unit. However, it is preferable that the driving device 3 is connected to the fan 1 through the magnetic actuator 6, and the magnetic actuator 6 can also realize the "zero leakage" of the fan to the environment. The container inlet 202 of the pressure vessel 2 can be disposed on the vessel end cap 203 or the vessel body 205. The driving device 3 can be a power machine such as a diesel engine or a gasoline engine. Except for this, the rest of the structure of this embodiment is the same as that of the first embodiment.

Claims

Claim

1. An air blowing or air guiding device, comprising a fan (1), a driving device (3) connected to the fan (1), characterized in that: the fan (1) is arranged in a pressure vessel (2) In the cavity (201), the pressure vessel (2) is provided with a container inlet (202) and a container outlet (204), and the inlet (101) and pressure of the fan (1) The chamber (201) of the container (2) is in communication, and the exhaust port (102) of the fan (1) communicates with the container exhaust port (204) of the pressure vessel (2) through a connecting pipe (4).

2. The blast or air-inducing device according to claim 1, wherein: the pressure vessel (2) is composed of a container body (205) and a container end cover provided at an end of the container body (205) ( 203) The container vent (204) is disposed on the container end cap (203).

3. The blast or air intake device according to claim 1, wherein: the pressure vessel (2) is composed of a container body (205) and a container end cover (203), the container vent (204) is disposed on the container body (205).

The blasting or air guiding device according to any one of claims 1 to 3, characterized in that the driving device (3) is disposed inside the cavity (201) of the pressure vessel (2).

5. An air blowing or air guiding device according to claim 4, characterized in that the fan (1) is fixed in the cavity (201) by means of a bracket (5).

6. The blast or air intake device according to claim 5, wherein: the container inlet (202) of the pressure vessel (2) is disposed on the container end cover (203) or the container body (205) .

The blast or air guiding device according to any one of claims 1 to 3, characterized in that the driving device (3) is disposed outside the cavity (201) of the pressure vessel (2).

8. Blowing or air guiding device according to claim 7, characterized in that the driving device (3) is connected to the fan (1) via a magnetic drive (6).

9. An air blowing or air guiding device according to claim 7, characterized in that the driving device (3) is connected to the fan (1) via a drive output shaft.

10. The blast or air intake device according to claim 7, wherein: the container inlet (202) of the pressure vessel (2) is disposed on the container end cover (203) or the container body (205) .