CN211397956U

CN211397956U - Pneumatic structure of doublestage compression

Info

Publication number: CN211397956U
Application number: CN201922461080.1U
Authority: CN
Inventors: 王刚
Original assignee: Xi'an Tuobo Kangbao Power Technology Co ltd
Current assignee: Xi'an Tuobo Kangbao Power Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-01
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a pneumatic structure of doublestage compression, including the compressor main part, the left side of compressor main part is run through and is provided with the drive bull stick, the air inlet duct has been seted up to the bottom on the positive surface of compressor main part, first recess has been seted up on the right side of air inlet duct inner chamber, the inner chamber of first recess is provided with first impeller, and the intercommunication has first connecting groove between two adjacent first recesses, and the second recess has been seted up to the right side of the first connecting groove inner chamber in right side. The utility model discloses a set up compressor main part, first impeller, first recess, second impeller, second recess, air discharge duct, air inlet duct, drive bull stick, supporting baseplate, standing groove, fixed protrusion, mounting hole, first intercommunication groove and second intercommunication groove cooperation and use, have the advantage that compression efficiency is high, it is relatively poor to have solved current pneumatic structural stability, it is lower to lead to its compression efficiency, can't satisfy user's demand, the problem of centrifugal compressor compression efficiency has been reduced.

Description

Pneumatic structure of doublestage compression

Technical Field

The utility model relates to a compressor technical field specifically is a pneumatic structure of doublestage compression.

Background

The improvement of air pressure in the centrifugal compressor is realized by the rotation of an impeller and the diffusion of a diffuser, and the air pressure can be divided into three types according to the height of the exhaust pressure: a centrifugal ventilator, wherein the wind pressure is in the range of 10-15kPa or less; a centrifugal blower, wherein the air pressure is 15-350 kPa; centrifugal compressor, the wind pressure is above 350kPa, in order to make compression efficiency higher, can use the centrifugal compressor who has the pneumatic structure of doublestage compression, and current pneumatic structure stability is relatively poor, leads to its compression efficiency lower, can't satisfy user's demand, has reduced centrifugal compressor's compression efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic structure of doublestage compression possesses the advantage that compression efficiency is high, and it is relatively poor to have solved current pneumatic structural stability, leads to its compression efficiency lower, can't satisfy user's demand, has reduced centrifugal compressor compression efficiency's problem.

In order to achieve the above object, the utility model provides a following technical scheme: a pneumatic structure for two-stage compression comprises a compressor main body, wherein a driving rotating rod is arranged on the left side of the compressor main body in a penetrating mode, an air inlet groove is formed in the bottom of the front surface of the compressor main body, a first groove is formed in the right side of the inner cavity of the air inlet groove, a first impeller is arranged in the inner cavity of the first groove, a first connecting groove is communicated between every two adjacent first grooves, a second groove is formed in the right side of the inner cavity of the first connecting groove, a second impeller is arranged in the inner cavity of the second groove, fixing protrusions are fixedly connected to the centers of the two sides of the first impeller and the second impeller, a mounting hole matched with the driving rotating rod is formed in the center of each fixing protrusion, a second communicating groove is communicated between every two adjacent second impellers, an air exhaust groove is formed in the top of the right side of the inner cavity of the second groove, and one side, away from the second groove, the right side of the driving rotating rod sequentially penetrates through the first groove, the first impeller, the second groove and the second impeller from left to right, the placing grooves are formed in the centers of the inner cavities of the first groove and the second groove, and the outer sides of the fixing protrusions penetrate through the inner cavities of the placing grooves.

Preferably, the bottom of the compressor main body is fixedly connected with a supporting bottom plate, and the bottom of the supporting bottom plate is provided with anti-skid grains.

Preferably, the surface of the first impeller outer ring is movably connected with the inner wall of the first groove, and the surface of the second impeller outer ring is slidably connected with the inner wall of the second groove.

Preferably, the inner wall of the mounting hole is in interference fit with the surface of the driving rotating rod, and the surface of the driving rotating rod is movably connected with the joint of the compressor main body.

Preferably, the diameter of the second impeller is larger than that of the first impeller, the inner diameter of the second communicating groove is smaller than that of the first communicating groove, and the outer surface of the fixing protrusion is movably connected with the inner wall of the placing groove.

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

1. the utility model discloses a set up compressor main part, first impeller, first recess, second impeller, second recess, air discharge duct, air inlet duct, drive bull stick, supporting baseplate, standing groove, fixed protrusion, mounting hole, first intercommunication groove and second intercommunication groove cooperation and use, have the advantage that compression efficiency is high, it is relatively poor to have solved current pneumatic structural stability, it is lower to lead to its compression efficiency, can't satisfy user's demand, the problem of centrifugal compressor compression efficiency has been reduced.

2. The utility model discloses a set up first impeller, first recess and first intercommunication groove cooperation are used, can play the effect of once compression to gas, through setting up the second impeller, second recess and second intercommunication groove cooperation are used, can play secondary compression's effect to gas, compression efficiency has been increased, use through setting up standing groove and fixed protruding cooperation, can play the effect of auxiliary stay to first recess and second impeller, the effectual stability that improves pneumatic structure, use through setting up supporting baseplate and anti-skidding line cooperation, frictional force between increase holding surface that can be great and the supporting baseplate, prevent that the supporting baseplate from sliding at will.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a right sectional view of the main structure of the compressor of the present invention;

fig. 3 is a right-side schematic view of a second impeller structure of the present invention.

In the figure: the air compressor comprises a compressor main body 1, a first impeller 2, a first groove 3, a second impeller 4, a second groove 5, an exhaust groove 6, an air inlet groove 7, a driving rotating rod 8, a supporting bottom plate 9, a placing groove 10, a fixing protrusion 11, a mounting hole 12, a first connecting groove 13 and a second connecting groove 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a pneumatic structure of two-stage compression comprises a compressor body 1, a driving rotary rod 8 is arranged on the left side of the compressor body 1 in a penetrating manner, the surface of the driving rotary rod 8 is movably connected with the joint of the compressor body 1, an air inlet groove 7 is arranged at the bottom of the front surface of the compressor body 1, a first groove 3 is arranged on the right side of the inner cavity of the air inlet groove 7, a first impeller 2 is arranged in the inner cavity of the first groove 3, the surface of the outer ring of the first impeller 2 is movably connected with the inner wall of the first groove 3, a first connecting groove 13 is communicated between two adjacent first grooves 3, a second groove 5 is arranged on the right side of the inner cavity of the first connecting groove 13, a second impeller 4 is arranged in the inner cavity of the second groove 5, the surface of the outer ring of the second impeller 4 is slidably connected with the inner wall of the second groove 5, and fixing protrusions 11 are fixedly connected with the centers, the center of the fixed bulge 11 is provided with a mounting hole 12 matched with the driving rotating rod 8 for use, the inner wall of the mounting hole 12 is in interference fit with the surface of the driving rotating rod 8, a second communicating groove 14 is communicated between every two adjacent second impellers 4, the top of the right side of the inner cavity of the second groove 5 on the right side is provided with an exhaust groove 6, one side, away from the second groove 5, of the exhaust groove 6 penetrates through the front surface of the compressor main body 1, the diameter of each second impeller 4 is larger than that of each first impeller 2, the inner diameter of each second communicating groove 14 is smaller than that of each first communicating groove 13, the right side of the driving rotating rod 8 sequentially penetrates through the first groove 3, each first impeller 2, each second groove 5 and each second impeller 4 from left to right, the center of the inner cavities of the first groove 3 and the second groove 5 are provided with a placing groove 10, the outer side of the fixed bulge 11 penetrates through the inner cavity of the placing groove 10, the outer surface of the, the bottom fixedly connected with supporting baseplate 9 of compressor main part 1, anti-skidding line has been seted up to the bottom of supporting baseplate 9, through setting up first impeller 2, first recess 3 and first intercommunication groove 13 cooperate the use, can play the effect of primary compression to gas, through setting up second impeller 4, second recess 5 and second intercommunication groove 14 cooperate the use, can play the effect of secondary compression to gas, compression efficiency has been increased, through setting up standing groove 10 and fixed bulge 11 cooperation use, can play the effect of auxiliary stay to first recess 3 and second impeller 4, the stability of pneumatic structure has effectively been improved, through setting up supporting baseplate 9 and anti-skidding line cooperation use, frictional force between increase holding surface that can be great and supporting baseplate 9, prevent supporting baseplate 9 from sliding at will, through setting up compressor main part 1, first impeller 2, first recess 3, Second impeller 4, second recess 5, exhaust duct 6, air inlet duct 7, drive bull stick 8, supporting baseplate 9, standing groove 10, fixed arch 11, mounting hole 12, first intercommunication groove 13 and the cooperation of second intercommunication groove 14 are used, have the advantage that compression efficiency is high, and it is relatively poor to have solved current pneumatic structural stability, leads to its compression efficiency lower, can't satisfy user's demand, has reduced centrifugal compressor compression efficiency's problem.

During the use, when the compressor during operation, drive bull stick 8 and rotate, drive bull stick 8 drives first impeller 2 at the internal rotation of first recess 3, second impeller 4 is at the internal rotation of second recess 5, make external gas get into through inlet channel 7, external gas loops through inlet channel 7 under the effect of first impeller 2, first recess 3 and first connecting groove 13, realize once compressing, under the effect of second impeller 4, gas after once compressing loops through second recess 5 and second connecting groove 14, realize the secondary compression, finally discharge through exhaust duct 6, under the cooperation of fixed arch 11 and standing groove 10, play the effect of outrigger to first recess 3 and second impeller 4, make the pneumatic structure operation more stable, thereby compression efficiency has been increased.

All parts used in the application document are standard parts and can be purchased from the market, the specific connection mode of all parts adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, and machines and parts adopt conventional models in the prior art, and detailed description is not given here.

In summary, the following steps: this pneumatic structure of doublestage compression, through setting up compressor body 1, first impeller 2, first recess 3, second impeller 4, second recess 5, exhaust duct 6, air inlet duct 7, drive bull stick 8, supporting baseplate 9, standing groove 10, fixed arch 11, mounting hole 12, first intercommunication groove 13 and the cooperation of second intercommunication groove 14 are used, the advantage that has compression efficiency height, it is relatively poor to have solved current pneumatic structural stability, lead to its compression efficiency lower, can't satisfy user's demand, the problem of centrifugal compressor compression efficiency has been reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pneumatic structure of two-stage compression, comprising a compressor body (1), characterized in that: a driving rotating rod (8) penetrates through the left side of the compressor main body (1), an air inlet groove (7) is formed in the bottom of the front surface of the compressor main body (1), first grooves (3) are formed in the right side of the inner cavity of the air inlet groove (7), first impellers (2) are arranged in the inner cavities of the first grooves (3), a first connecting groove (13) is communicated between every two adjacent first grooves (3), a second groove (5) is formed in the right side of the inner cavity of the first connecting groove (13) in the right side, second impellers (4) are arranged in the inner cavities of the second grooves (5), fixing protrusions (11) are fixedly connected to the centers of the two sides of the first impellers (2) and the second impellers (4), mounting holes (12) matched with the driving rotating rod (8) for use are formed in the centers of the fixing protrusions (11), and second communicating grooves (14) are communicated between every two adjacent second impellers (4), exhaust duct (6) have been seted up at the top on right side second recess (5) inner chamber right side, one side that second recess (5) were kept away from in exhaust duct (6) runs through to the positive surface of compressor main part (1), the right side of drive bull stick (8) runs through first recess (3), first impeller (2), second recess (5) and second impeller (4) from a left side to the right side in proper order, standing groove (10) have all been seted up in the center department of first recess (3) and second recess (5) inner chamber, the inner chamber to standing groove (10) is run through in fixed protruding (11) outside.

2. The pneumatic structure of two-stage compression according to claim 1, wherein: the bottom of the compressor main body (1) is fixedly connected with a supporting bottom plate (9), and anti-skid grains are formed in the bottom of the supporting bottom plate (9).

3. The pneumatic structure of two-stage compression according to claim 1, wherein: the surface of the outer ring of the first impeller (2) is movably connected with the inner wall of the first groove (3), and the surface of the outer ring of the second impeller (4) is slidably connected with the inner wall of the second groove (5).

4. The pneumatic structure of two-stage compression according to claim 1, wherein: the inner wall of mounting hole (12) and the surperficial interference fit of drive bull stick (8), the junction swing joint of the surface of drive bull stick (8) and compressor main part (1).

5. The pneumatic structure of two-stage compression according to claim 1, wherein: the diameter of the second impeller (4) is larger than that of the first impeller (2), the inner diameter of the second communicating groove (14) is smaller than that of the first communicating groove (13), and the outer surface of the fixing protrusion (11) is movably connected with the inner wall of the placing groove (10).