CN209228694U - A kind of blade wheel structure and compressor for compressor axial force balance - Google Patents
A kind of blade wheel structure and compressor for compressor axial force balance Download PDFInfo
- Publication number
- CN209228694U CN209228694U CN201822020059.3U CN201822020059U CN209228694U CN 209228694 U CN209228694 U CN 209228694U CN 201822020059 U CN201822020059 U CN 201822020059U CN 209228694 U CN209228694 U CN 209228694U
- Authority
- CN
- China
- Prior art keywords
- compressor
- blade
- axial force
- force balance
- wheel structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a kind of blade wheel structure and compressor for compressor axial force balance, belongs to frame for movement technical field.It includes wheel disc, and wheel disc has opposite inner wall and outside wall surface, is provided with multiple back blades being along the circumferential direction distributed in outside wall surface, multiple impeller blades being along the circumferential direction distributed are provided on inner wall.The structure solves the problems, such as that compressor axial force is big, can reduce by 20%~30% axial force；The loss of bearing is reduced simultaneously, back blade processing and manufacture difficulty are small, and it is at low cost, improve the efficiency of compressor.
Description
Technical field
The utility model relates to mechanical equipment technical field more particularly to a kind of impellers for compressor axial force balance
Structure and compressor.
Background technique
Industrial compressor, the especially compressor of particular job medium.Improve the reliability of compressor, safety and
Efficiency is always the important topic of compressor field research.And the quality of axial force balance directly affects the reliable of compressor operation
Property and working efficiency.Many compressors lead to the excessively high need of sliding bearing temperature of compressor since Axial Force Calculating goes wrong
Increase cooling oil mass, system effectiveness is caused to reduce, or even the possibility that sliding bearing is burnt occur, seriousness has been more than corruption
It is lost caused by erosion, abrasion etc., and influences the service life of whole system.
In the prior art, high speed compressor impeller is usually semi-open type structure, and axial force is directly pushing away by gear-box
Power bearing balances, some designs special balancing disc structure to balance a part of axial force.These technologies at present
In, although the structure of design can be with balancing axial thrust, loss is excessive, and structure is complicated, to influence the efficiency of compressor.
Utility model content
The purpose of this utility model is to provide a kind of blade wheel structure and compressor for compressor axial force balance, purports
Solving the problems, such as that compressor axial force is big in the prior art.
To achieve the above object, the technical solution of the utility model is:
A kind of blade wheel structure for compressor axial force balance, the blade wheel structure for compressor axial force balance
Including wheel disc, the wheel disc has opposite inner wall and outside wall surface, is provided in the outside wall surface and multiple along the circumferential direction divides
The back blade of cloth is provided with multiple impeller blades being along the circumferential direction distributed on the inner wall.
As a kind of optimal technical scheme of the utility model, circumferencial direction of multiple back blades along the outside wall surface
The identical distribution of upper spacing.
As a kind of optimal technical scheme of the utility model, multiple impeller blades are along the circumference side of the inner wall
The identical distribution of upward spacing.
As a kind of optimal technical scheme of the utility model, the back blade is semi-open type structure.
As a kind of optimal technical scheme of the utility model, the back blade is prismatic blade or camber blades.
As a kind of optimal technical scheme of the utility model, Plane of rotation of the back blade perpendicular to the wheel disc.
As a kind of optimal technical scheme of the utility model, the back blade is 7, and the structure of each back blade and
Length is all the same.
As a kind of optimal technical scheme of the utility model, the back blade and the wheel disc are integrated milling structure.
As a kind of optimal technical scheme of the utility model, the center position of the wheel disc offers rotated through-hole,
The length of the back blade be less than the rotated through-hole marginal position to the wheel disc marginal position spacing.
A kind of compressor, the compressor include the above-described blade wheel structure for compressor axial force balance.
The beneficial effects of the utility model are:
The utility model provides a kind of blade wheel structure for compressor axial force balance, is used for compressor axial force balance
Blade wheel structure include wheel disc, wheel disc has opposite inner wall and outside wall surface, be provided in outside wall surface it is multiple along the circumferential direction
The back blade of distribution is provided with multiple impeller blades being along the circumferential direction distributed on inner wall.Since back blade is synchronous with impeller
Rotation, back blade is perpendicular to impeller Plane of rotation, and the arrangement that is uniformly distributed along the circumference, and can effectively reduce the gas for being leaked to impeller back face
Pressure.Meanwhile back blade is rotated with impeller, forces wheel backface gas rotating, reduces wheel backface gas pressure, thus
A pressure difference opposite with axial force is generated to balance a part of axial force, while will not influence the flow field of impeller internal gas,
The efficiency that ensure that impeller, reduces quantity of gas leakage.It follows that efficiently solve compressor axial force big for the structure
Problem, can reduce by 20%~30% axial force, while reduce the loss of bearing, and back blade processing and manufacture difficulty are small,
It is at low cost, improve the efficiency of compressor.
The utility model provides a kind of compressor by above-mentioned design, the compressor have it is above-mentioned for compressor shaft to
The blade wheel structure of dynamic balance has the characteristics that structure is simple and easy to use.
Detailed description of the invention
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the structural representation of the blade wheel structure provided by the embodiment of the utility model for compressor axial force balance
Figure；
Fig. 2 is the first angle of the blade wheel structure provided by the embodiment of the utility model for compressor axial force balance
Structural schematic diagram；
Fig. 3 is the second angle of the blade wheel structure provided by the embodiment of the utility model for compressor axial force balance
Structural schematic diagram；
Fig. 4 is the structural schematic diagram of wheel disc provided by the embodiment of the utility model.
Icon: 1- is used for the blade wheel structure of compressor axial force balance；2- wheel disc；3- inner wall；4- outside wall surface；5- notopodium
Piece；6- impeller blade；7- rotated through-hole.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term " on ", "lower"
For be based on the orientation or positional relationship shown in the drawings or the utility model product using when the orientation or position usually put
Relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, in the present invention unless specifically defined or limited otherwise, fisrt feature on second feature or
Under may include that the first and second features directly contact, may include the first and second features be not direct contact but logical yet
Cross the other characterisation contact between them.Moreover, fisrt feature is on second feature, top and above include fisrt feature
Right above second feature and oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature is
Under two features, lower section and fisrt feature included below be directly below and diagonally below the second feature, or be merely representative of fisrt feature
Level height is less than second feature.
In addition, the terms such as term "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly
Low dip.It is not to indicate that the structure has been had to if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It is complete horizontal, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Embodiment:
The present embodiment provides a kind of compressors comprising for the blade wheel structure 1 of compressor axial force balance, this is used to press
The blade wheel structure 1 of contracting machine axial force balance aims to solve the problem that the larger effect so as to cause compressor of compressor axial force in the prior art
The low problem of rate.
It should be noted that compressor is a kind of driven fluid machinery that low-pressure gas is promoted to high pressure gas, it is
The heart of refrigeration system.The specific term that compressor characteristics can most be showed is known as " vapor pump ".The duty that compressor is actually undertaken
Duty is adherence pressure, and pressure of inspiration(Pi) state is increased to discharge pressure state.
Compression ratio is a kind of technology representation of pressure difference, and meaning is high-pressure side absolute pressure divided by the exhausted of low-pressure side
To pressure.The calculating of compression ratio must use absolute pressure value.In order to avoid making compression ratio calculated value negative value occur, pressure is calculated
Than when must use absolute pressure, rather than meter pressure.Compression ratio calculated value positive value can be made by using absolute pressure value, in this way
It is just significant.
Compressor is to operate band piston from the refrigerant gas of air intake duct sucking low-temp low-pressure by motor and carry out to it
After compression, to the refrigerant gas of exhaust pipe discharge high temperature and pressure, power is provided for refrigeration cycle, to realize compression → condensation
The refrigeration cycle of (heat release) → expansion → evaporation (heat absorption).
Meanwhile compressor is divided into piston compressor, helical-lobe compressor, centrifugal compressor and straight line pressure according to working principle
Contracting machine etc..
Piston compressor is generally equipment (starter and thermal protector) and cold by shell, motor, cylinder body, piston, control
But system forms, and the type of cooling has oil cold and air-cooled, and three kinds of natural cooling.
And linear compressor is then to be compressed to gas using magnetic suspension principle and helical ring hydrodynamics structure, be
Refrigeration provides power.
It should be noted that under normal circumstances, linear compressor does not have axis, without cylinder body, sealing and radiator structure.
The specific structure for being used for the blade wheel structure 1 of compressor axial force balance is as hereinbefore set forth.
Fig. 1 is please referred to, referring to Figure 2 to Figure 4, the blade wheel structure 1 for compressor axial force balance includes wheel disc 2 for cooperation,
Wheel disc 2 has opposite inner wall 3 and outside wall surface 4, is provided with multiple back blades 5 being along the circumferential direction distributed in outside wall surface 4, interior
Multiple impeller blades 6 being along the circumferential direction distributed are provided on wall surface 3.
It should be noted that in the present embodiment, multiple back blades 5 spacing along the circumferencial direction of outside wall surface 4 is identical
Distribution；And in other examples, it can be along the circumferencial direction of outside wall surface 4 in different spacing between multiple back blades 5
Distribution, and it is not limited only to the distribution form in the present embodiment.
It should be noted that in the present embodiment, multiple impeller blades 6 spacing along the circumferencial direction of inner wall 3 is identical
Distribution；And in other examples, it can be along the circumferencial direction of outside wall surface 4 between difference between multiple impeller blades 6
Away from distribution, and be not limited only to the distribution form in the present embodiment.
It should be noted that in the present embodiment, back blade 5 is semi-open type structure；In other examples, may be used
To use other structure types, the structure type being not limited only in the present embodiment.
It should be noted that in the present embodiment, back blade 5 is prismatic blade or camber blades；In other embodiments
In, it can also be using other structure types, the structure type being not limited only in the present embodiment.
It should be noted that in the present embodiment, Plane of rotation of the back blade 5 perpendicular to wheel disc 2, and the row of being uniformly distributed along the circumference
Column, can effectively reduce the gas pressure for being leaked to impeller back face.
Meanwhile back blade 5 is rotated with impeller, forces wheel backface gas rotating, reduces wheel backface gas pressure,
To generate a pressure difference opposite with axial force to balance a part of axial force, while it will not influence the stream of impeller internal gas
, it ensure that the efficiency of impeller, reduce quantity of gas leakage.
It should be noted that in the present embodiment, back blade 5 is 7, and the structure of each back blade 5 and length are homogeneous
Together.
It should be noted that in the present embodiment, back blade 5 and wheel disc 2 are integrated milling structure, i.e. back blade 5 and wheel
Disk 2 is integrally machined molding using same blank material, and back blade 5 and 2 junction of wheel disc are provided with the change of smooth transition
Diameter fillet, enables unobstructed by the air-flow of this impeller, passes through, reduces energy when air-flow passes through impeller internal
Loss, improves the aeroperformance of impeller.
It should be noted that in the present embodiment, the center position of wheel disc 2 offers rotated through-hole 7, back blade 5
Length be less than rotated through-hole 7 marginal position to wheel disc 2 marginal position spacing.
It follows that the blade wheel structure 1 for compressor axial force balance includes wheel disc 2, wheel disc 2 has opposite inner wall
Face 3 and outside wall surface 4 are provided with multiple back blades 5 being along the circumferential direction distributed in outside wall surface 4, are provided with multiple edges on inner wall 3
The impeller blade 6 of circumferencial direction distribution.Due to back blade 5 and impeller synchronous rotary, back blade 5 perpendicular to impeller Plane of rotation,
And the arrangement that is uniformly distributed along the circumference, it can effectively reduce the gas pressure for being leaked to impeller back face.Meanwhile back blade 5 is revolved with impeller
Turn, force wheel backface gas rotating, reduce wheel backface gas pressure, comes to generate a pressure difference opposite with axial force
A part of axial force is balanced, while will not influence the flow field of impeller internal gas, ensure that the efficiency of impeller, gas is reduced and lets out
Leakage quantity.
Therefore, which efficiently solves the problems, such as that compressor axial force is big, can reduce by 20%~30% axial direction
Power, while the loss of bearing is reduced, the processing of back blade 5 and manufacture difficulty are small, and it is at low cost, improve the efficiency of compressor.It should
Compressor has the above-mentioned blade wheel structure 1 for compressor axial force balance, has the characteristics that structure is simple and easy to use.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of blade wheel structure for compressor axial force balance, which is characterized in that described to be used for compressor axial force balance
Blade wheel structure include wheel disc, the wheel disc has opposite inner wall and outside wall surface, is provided with multiple edges in the outside wall surface
The back blade of circumferencial direction distribution, is provided with multiple impeller blades being along the circumferential direction distributed on the inner wall.
2. the blade wheel structure according to claim 1 for compressor axial force balance, which is characterized in that multiple back
Blade identical distribution of spacing along the circumferencial direction of the outside wall surface.
3. the blade wheel structure according to claim 1 for compressor axial force balance, which is characterized in that multiple leaves
Impeller blade identical distribution of spacing along the circumferencial direction of the inner wall.
4. the blade wheel structure according to claim 1 for compressor axial force balance, which is characterized in that the back blade
For semi-open type structure.
5. the blade wheel structure according to claim 1 for compressor axial force balance, which is characterized in that the back blade
For prismatic blade or camber blades.
6. the blade wheel structure according to claim 1 for compressor axial force balance, which is characterized in that the back blade
Perpendicular to the Plane of rotation of the wheel disc.
7. the blade wheel structure according to claim 1 for compressor axial force balance, which is characterized in that the back blade
It is 7, and the structure of each back blade and length are all the same.
8. the blade wheel structure according to claim 1 for compressor axial force balance, which is characterized in that the back blade
Milling structure is integrated with the wheel disc.
9. the blade wheel structure according to claim 1 for compressor axial force balance, which is characterized in that the wheel disc
Center position offers rotated through-hole, and the length of the back blade is less than the marginal position of the rotated through-hole to the wheel disc
Marginal position spacing.
10. a kind of compressor, which is characterized in that the compressor includes that claim 1 to 9 is described in any item for compressor
The blade wheel structure of axial force balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822020059.3U CN209228694U (en) | 2018-12-03 | 2018-12-03 | A kind of blade wheel structure and compressor for compressor axial force balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822020059.3U CN209228694U (en) | 2018-12-03 | 2018-12-03 | A kind of blade wheel structure and compressor for compressor axial force balance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209228694U true CN209228694U (en) | 2019-08-09 |
Family
ID=67506026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822020059.3U Active CN209228694U (en) | 2018-12-03 | 2018-12-03 | A kind of blade wheel structure and compressor for compressor axial force balance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209228694U (en) |
-
2018
- 2018-12-03 CN CN201822020059.3U patent/CN209228694U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201262164Y (en) | Air-intake vane apparatus | |
| CN202250886U (en) | Dual-drum self-balancing sectional type multi-stage pump | |
| CN103321748B (en) | Verticle gas turbine | |
| CN205977713U (en) | Novel canned motor pump structure for air conditioning unit | |
| CN207673544U (en) | The bent axle of compressor and compressor with it | |
| CN209228694U (en) | A kind of blade wheel structure and compressor for compressor axial force balance | |
| CN202100282U (en) | Rear supercharging turboexpander of gas bearing | |
| CN210889438U (en) | Combined dry gas sealing structure suitable for radial-flow impeller | |
| CN208040700U (en) | A kind of two-stage screw compressor | |
| CN203756586U (en) | Sealing part and centrifugal compressor | |
| CN103277146A (en) | Symmetrical lateral tooth steam sealing structure | |
| CN207621031U (en) | A kind of single-stage cantilever centrifugal pump | |
| CN205154629U (en) | Gas suspension variable frequency air conditioner compressor | |
| CN209244895U (en) | The dedicated extra-high pressure fan of ash furnace | |
| CN203130504U (en) | Novel liquid ring vacuum pump | |
| CN114017347A (en) | Sectional type multistage centrifugal pump without balancing device | |
| CN209261819U (en) | A kind of Roots Blower Rotor | |
| CN209340166U (en) | Multi-online air-conditioning system | |
| CN208138157U (en) | Double-suction submerged pump | |
| CN208619389U (en) | High-speed small-size air blower based on air hydrodynamic bearing | |
| CN108730201A (en) | Double-suction submerged pump | |
| CN207297382U (en) | Small pump and small pump pump group | |
| CN104100565B (en) | Water pump complement for Diesel engine | |
| CN204283882U (en) | Blower fan | |
| CN216666029U (en) | Blade top clearance optimization structure for high-speed centrifugal compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Impeller structure for axial force balance of compressor and compressor Effective date of registration: 20210723 Granted publication date: 20190809 Pledgee: Wuhan area branch of Hubei pilot free trade zone of Bank of China Ltd. Pledgor: GREATALL POWER Co.,Ltd. Registration number: Y2021420000069 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |