CN213088245U

CN213088245U - Multistage centrifugal blower directly driven by high-speed motor

Info

Publication number: CN213088245U
Application number: CN202021931851.5U
Authority: CN
Inventors: 庞博; 王小银; 王强军
Original assignee: Hunan Toubo Industrial Design Co ltd
Current assignee: Hunan Toubo Industrial Design Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-04-30
Anticipated expiration: 2030-09-07

Abstract

The utility model relates to a multistage centrifugal blower technical field discloses an adopt high-speed motor direct drive's multistage centrifugal blower, including left casing and right casing, the equal fixed mounting of a left side casing and right casing opposite lateral wall intermediate position has the bearing frame, two the equal and movable embedding of bearing frame is in the end shaft fixed connection of the same root multistage impeller of left casing and right casing, is located the drive shaft fixed connection of shaft coupling and high-speed motor is passed through to multistage impeller right-hand member portion. The utility model discloses when changing air filter, at first demolish air intake muffler from the internal anticlockwise rotation of filtration, then take out air filter to take out the otter board and wash, improve the efficiency of circulation of air, the dust particulate matter that can avoid in the outside air enters into the air-blower inner chamber, and then influences the life of air-blower and the problem of the actual amount of wind.

Description

Multistage centrifugal blower directly driven by high-speed motor

Technical Field

The utility model relates to a multistage centrifugal blower technical field specifically is an adopt high-speed motor direct drive's multistage centrifugal blower.

Background

At present, a centrifugal blower is an impeller machine for conveying gas, and is generally driven by a motor. The existing multistage high-speed centrifugal blower usually adopts a constant-speed motor as a prime motor, and drives a blower impeller to work after being accelerated by a gear speed increaser. The speed increaser has certain mechanical transmission loss, influences the complete machine efficiency of the air blower, and has larger mechanical noise.

In addition, the air inlet of the existing centrifugal blower is exposed and opened, so that dust particles in the outside air enter the inner cavity of the blower, and the service life and the actual air volume of the blower are further influenced; and the noise that air intake and air outlet produced also can influence the actual silence effect of air-blower.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adopt high-speed motor direct drive's multistage centrifugal blower, solved the problem that proposes among the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-stage centrifugal blower directly driven by a high-speed motor comprises a left shell and a right shell, wherein bearing seats are fixedly arranged in the middle positions of the opposite side walls of the left shell and the right shell, the two bearing seats are fixedly connected with end shafts of a same multi-stage impeller movably embedded in the left shell and the right shell, and the right end part of the multi-stage impeller is fixedly connected with a driving shaft of the high-speed motor through a coupler;

an air inlet pipe is fixedly communicated with the front side part of the left shell, an air speed sensor penetrates through the left side wall of the air inlet pipe in a fixed sealing manner, and an air filter pipe is covered at the front end part of the air inlet pipe; the inner wall of the front end part of the air filter pipe is provided with an air inlet silencer, and a threaded connecting pipe at the rear end part of the air inlet silencer is screwed and fixed, the middle part of the inner wall of the air filter pipe is fixedly connected with a lap joint ring table, the front side of the lap joint ring table is lapped with a screen plate, and the front end part of the screen plate is lapped with an air filter element;

an exhaust pipe is fixedly communicated with the front side wall of the right shell, an external threaded pipe is fixedly connected to the front end portion of the exhaust pipe, and the external threaded pipe is screwed and fixed with the inner wall of the rear end portion of the air outlet silencer.

As a preferred embodiment of the utility model, both ends all pass through fixing bolt and air-supply line fixed connection about the filtration pipe.

As a preferred embodiment of the present invention, the mesh plate is a 50-mesh stainless steel mesh plate.

As a preferred embodiment of the present invention, the air filter is located between the threaded connection pipe and the mesh plate.

As a preferred embodiment of the present invention, the connection can be dismantled for the bolt between left casing and the right casing.

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

1. the utility model discloses a set up the PLC controller of wind velocity transducer real-time transmission data for controlling this air-blower, in case wind velocity numerical value is less than when the normal value, PLC control alarm sends the police dispatch newspaper, reminds operating personnel to in time change air filter, and automatic warning operating personnel change air filter, guarantees the air supply efficiency and the effect of air-blower in real time.

2. The utility model discloses when changing air filter, at first demolish air intake muffler from the internal anticlockwise rotation of filtration, then take out air filter to take out the otter board and wash, improve the efficiency of circulation of air, the dust particulate matter that can avoid in the outside air enters into the air-blower inner chamber, and then influences the life of air-blower and the problem of the actual amount of wind.

3. The utility model discloses because there are air intake muffler and air outlet muffler respectively fixed mounting on the air-supply line of air-blower and discharge air pipe, great reduction the wind noise when the air-blower moves.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of the overall structure of a multistage centrifugal blower directly driven by a high-speed motor according to the present invention;

fig. 2 is the utility model relates to an air filter tube and air intake silencer connection side-looking structural schematic diagram of the multistage centrifugal blower that adopts high-speed motor direct drive.

In the figure: 1. a multi-stage impeller; 2. a coupling; 3. a high-speed motor; 4. an exhaust duct; 5. an air inlet pipe; 6. a bearing seat; 7. a left housing; 8. a right housing; 9. an externally threaded tube; 10. an air outlet silencer; 11. an air filter tube; 12. an air inlet silencer; 13. fixing the bolt; 14. a wind speed sensor; 15. a threaded connection pipe; 16. an air filter element; 17. lapping a loop platform; 18. a mesh plate.

The utility model provides an instrument all can be through market purchase and private customization acquisition.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a multi-stage centrifugal blower directly driven by a high-speed motor comprises a left shell and a right shell 8, wherein bearing seats 6 are fixedly arranged in the middle positions of the opposite side walls of the left shell 7 and the right shell 8, the two bearing seats 6 are fixedly connected with end shafts of a same multi-stage impeller 1 movably embedded in the left shell 7 and the right shell 8, and the right end part of the multi-stage impeller 1 is fixedly connected with a driving shaft of the high-speed motor 3 through a coupling 2;

an air inlet pipe 5 is fixedly communicated with the front side part of the left shell 7, an air speed sensor 14 is fixedly, hermetically and penetratingly arranged on the left side wall of the air inlet pipe 5, and an air filter pipe 11 is covered at the front end part of the air inlet pipe 5; the inner wall of the front end part of the air filter pipe 11 is provided with a threaded connecting pipe 15 at the rear end part of the air inlet silencer 12, the threaded connecting pipe is screwed and fixed, the middle part of the inner wall of the air filter pipe 11 is fixedly connected with a lap joint ring table 17, the front side of the lap joint ring table 17 is lapped with a screen plate 18, and the front end part of the screen plate 18 is lapped with an air filter element 16;

the front side wall of the right shell 8 is fixedly communicated with an exhaust pipe 4, the front end part of the exhaust pipe 4 is fixedly connected with an external threaded pipe 9, and the external threaded pipe 9 is screwed and fixed with the inner wall of the rear end part of the air outlet silencer 10; specifically, the method comprises the following steps: the multiple impellers are arranged on a main shaft in a series connection mode to form a multi-stage impeller 1, the main shaft of the air blower is connected with a shaft of a motor through a coupler 2, a frequency converter is utilized to adjust the rotating speed of a high-speed motor 3 to the rated rotating speed of the air blower during operation, a wind speed sensor 14 transmits data to a PLC (programmable logic controller) for controlling the air blower in real time, and once the wind speed value is lower than a normal value, the PLC controls an alarm to give an alarm to remind an operator to replace an air filter element 16 in time; when the air filter element 16 is replaced, firstly, the air inlet silencer 12 is rotated anticlockwise from the air filter pipe 11 to be detached, then the air filter element 16 is taken out, and the screen plate 18 is taken out to be cleaned, so that the air circulation efficiency is improved, and the mode can avoid the problems that dust particles in the outside air enter the inner cavity of the air blower, and further the service life and the actual air volume of the air blower are influenced; the air filter element 16 can be automatically reminded to replace by operators, and the air supply efficiency and effect of the blower can be guaranteed in real time; because the air inlet pipe 5 and the exhaust air pipe 4 of the air blower are respectively and fixedly provided with the air inlet silencer 12 and the air outlet silencer 10, the air noise generated when the air blower operates is greatly reduced.

In this embodiment (see fig. 1), the left and right ends of the air filter pipe 11 are both fixedly connected to the air inlet pipe 5 through the fixing bolts 13, so that the air filter pipe is convenient to disassemble, assemble and repair at a later stage.

In this embodiment, otter board 18 is 50 mesh stainless steel otter boards, and life is more of a specified duration to can protect air filter 16, avoid the too big condition that causes air filter 16 to take place to buckle of air current, and then influence the problem of air filter effect.

In this embodiment (see fig. 2), the air filter element 16 is located between the threaded connection tube 15 and the screen plate 18, so as to ensure that the threaded connection tube 15 and the screen plate 18 can form a clamping effect on the air filter element 16, and ensure stability.

In this embodiment (please refer to fig. 1), the left casing 7 and the right casing 8 are detachably connected by bolts, so that the later period of disassembly and maintenance is facilitated.

When an adopt high-speed motor direct drive's multistage centrifugal blower uses, it is required to explain, the utility model relates to an adopt high-speed motor direct drive's multistage centrifugal blower, each part is the parts that general standard component or technical staff in the field know, and its structure and principle all can learn through the technical manual or learn through conventional experimental method for this technical staff.

When the air filter is used, a plurality of impellers are arranged on a main shaft in a series connection mode to form a multi-stage impeller 1, the main shaft of the air blower is connected with a shaft of the motor through a coupler 2, the rotating speed of a high-speed motor 3 is adjusted to the rated rotating speed of the air blower by using a frequency converter during operation, the air speed sensor 14 transmits data to a PLC (programmable logic controller) for controlling the air blower in real time, and once the air speed value is lower than a normal value, the PLC controls an alarm to give an alarm to remind an operator to replace the air filter element 16 in time; when the air filter element 16 is replaced, firstly, the air inlet silencer 12 is rotated anticlockwise from the air filter pipe 11 to be detached, then the air filter element 16 is taken out, and the screen plate 18 is taken out to be cleaned, so that the air circulation efficiency is improved, and the mode can avoid the problems that dust particles in the outside air enter the inner cavity of the air blower, and further the service life and the actual air volume of the air blower are influenced; the air filter element 16 can be automatically reminded to replace by operators, and the air supply efficiency and effect of the blower can be guaranteed in real time; because the air inlet pipe 5 and the exhaust air pipe 4 of the air blower are respectively and fixedly provided with the air inlet silencer 12 and the air outlet silencer 10, the air noise generated when the air blower operates is greatly reduced.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an adopt high-speed motor direct drive's multistage centrifugal blower which characterized in that: the multi-stage impeller structure comprises a left shell (7) and a right shell (8), wherein bearing seats (6) are fixedly arranged in the middle positions of the opposite side walls of the left shell (7) and the right shell (8), the two bearing seats (6) are fixedly connected with an end shaft of the same multi-stage impeller (1) movably embedded in the left shell (7) and the right shell (8), and the right end part of the multi-stage impeller (1) is fixedly connected with a driving shaft of a high-speed motor (3) through a coupling (2);

an air inlet pipe (5) is fixedly communicated with the front side part of the left shell (7), an air velocity sensor (14) is fixedly, hermetically and penetratingly arranged on the left side wall of the air inlet pipe (5), and an air filter pipe (11) is covered at the front end part of the air inlet pipe (5); the inner wall of the front end part of the air filter pipe (11) is provided with a threaded connecting pipe (15) at the rear end part of the air inlet silencer (12), the threaded connecting pipe is screwed and fixed, the middle part of the inner wall of the air filter pipe (11) is fixedly connected with a lap joint ring table (17), the front side of the lap joint ring table (17) is lapped with a screen plate (18), and the front end part of the screen plate (18) is lapped with an air filter element (16);

the front side wall of the right shell (8) is fixedly communicated with an exhaust pipe (4), the front end part of the exhaust pipe (4) is fixedly connected with an external threaded pipe (9), and the external threaded pipe (9) is screwed and fixed with the inner wall of the rear end part of the air outlet silencer (10).

2. A multi-stage centrifugal blower directly driven by a high speed motor as claimed in claim 1, wherein: the left end part and the right end part of the air filter pipe (11) are fixedly connected with the air inlet pipe (5) through fixing bolts (13).

3. A multi-stage centrifugal blower directly driven by a high speed motor as claimed in claim 1, wherein: the mesh plate (18) is a 50-mesh stainless steel mesh plate.

4. A multi-stage centrifugal blower directly driven by a high speed motor as claimed in claim 1, wherein: the air filter element (16) is positioned between the threaded connecting pipe (15) and the screen plate (18).

5. A multi-stage centrifugal blower directly driven by a high speed motor as claimed in claim 1, wherein: the left shell (7) and the right shell (8) are detachably connected through bolts.