CN202545366U - Blade diffuser of centrifugal gas compression equipment - Google Patents
Blade diffuser of centrifugal gas compression equipment Download PDFInfo
- Publication number
- CN202545366U CN202545366U CN2012201273731U CN201220127373U CN202545366U CN 202545366 U CN202545366 U CN 202545366U CN 2012201273731 U CN2012201273731 U CN 2012201273731U CN 201220127373 U CN201220127373 U CN 201220127373U CN 202545366 U CN202545366 U CN 202545366U
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- blade
- diffusion
- gas compression
- housing
- shell
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Abstract
The utility model relates to a blade diffuser of centrifugal gas compression equipment, wherein the blade diffuser comprises a plurality of blades arranged on the shell of the gas compression equipment; a plurality of grades of gas compression units are formed in the shell of the gas compression equipment; each grade of the gas compression unit is provided with a diffusion area; the shell at the diffusion area is a diffusion shell; a locating member is arranged on each blade; a plurality of locating holes for fixing the blades are arranged on the diffusion shell; and the blades are fixedly installed on the diffusion shell through the locating members. The blade diffuser disclosed by the utility model is used for decelerating airflow with higher speed from the impeller, so that kinetic energy is effectively converted into pressure energy; furthermore, the structure is simple; the installation and maintenance processes of a centrifugal fan are simplified; and the maintenance cost is reduced.
Description
Technical field
The utility model relates to centrifugal gas compressing equipment technical field, relates in particular to the vane diffuser of the centrifugal gas compressing equipment of big flow.
Background technique
For centrifugal high pressure fan, the Diffuser function mainly is that the air-flow with big speed that comes out from impeller is slowed down, and makes kinetic energy effectively be converted into the pressure ability.Generally be divided into two kinds of vaneless diffuser, vane diffusers, vaneless diffuser is simple in structure, but because of airflow direction angle α constant basically; Flow path is longer, and frictional loss is big, and under design conditions; Its efficient is low by 3～5% than vane diffuser, and vaneless diffuser mainly reaches the purpose of supercharging by increasing diameter, so make Blower Housing bigger; Then the diffusion degree is big for vane diffuser, and the advantage that size is little is so demonstrate remarkable advantages in centrifugal high pressure fan.
Right vane diffuser is because the existence of blade; Decrease in efficiency is obvious in the time of will causing variable working condition like design error; And pumping point reduces, thus change diffusion blade shape and position reaching the desired design parameter through regular meeting in the advanced development process, and blade and shell cast one in the existing technology; Therefore, be not easy to realize the change that designs.
The model utility content
The purpose of the utility model is to overcome the defective of background technique, and a kind of Diffuser of big flow centrifugal blower is provided, and is specially vane diffuser, and it is simple for structure, and installs, changes conveniently.
For realizing above-mentioned purpose; The utility model proposes following technological scheme: a kind of vane diffuser of centrifugal gas compressing equipment; Said vane diffuser comprises that most are arranged on the blade on the gas compressing equipment housing; Be formed with several grades of gas compression unit in the housing of said gas compressing equipment, said every grade of gas compression unit has the diffusion district, and the housing at place, said diffusion district is the diffusion housing; Said blade is provided with locating piece, and said diffusion housing is provided with the positioning hole of most fixing said blades, and said blade pass is crossed said locating piece and is fixedly installed on the said diffusion housing.
Further, said locating piece is a locating stud.
Also be provided with impeller in said every grade of gas compression unit, said vane diffuser limits flow direction to the air-flow that comes out from said impeller, improves the diffusion degree.
Said every grade of gas compression unit also comprises the recirculating zone.
Said blade pass is crossed said locating piece and is cooperated the realization blade to be connected with the assembling of diffusion housing with the location of positioning hole.
Compared with prior art, the vane diffuser of the centrifugal gas compressing equipment that the utility model discloses, it adopts the assembling design of blade and diffusion housing, and it is simple for structure, and has simplified the installation and the maintenance process of centrifugal blower, has reduced maintenance cost.
Description of drawings
Fig. 1 is the partial sectional view of the centrifugal blower among the utility model embodiment;
Fig. 2 is that the vane diffuser of the utility model is assembled in the schematic representation on the diffusion housing.
Fig. 3 is the schematic representation of blade among Fig. 2.
Embodiment
The accompanying drawing that will combine the utility model below carries out clear, complete description to the utility model embodiment's technological scheme.
The vane diffuser of the centrifugal gas compressing equipment that the utility model disclosed; It is installed in the casing of compression device; This gas compressing equipment comprises centrifugal compressor, centrifugal blower etc., and as shown in Figure 1 is a kind of centrifugal blower that adopts this practical vane diffuser, and it comprises casing 1; Be installed in the main shaft 2 on the casing 1; Suction port 3 and relief opening 4, said casing 1 comprises inlet casing 11, exit casing 12 and intermediate casing 13, said suction port 3 is arranged at respectively on inlet casing 11 and the exit casing 12 with relief opening 4; And said casing 1 inboard also is provided with the multistage gas compression unit 15 that two ends are connected with suction port 3 and relief opening 4 respectively, is provided with the impeller 16 that is loaded on the main shaft in said every grade of gas compression unit 15.
Also be provided with bearing support 17 on the said air intake casing 12, said main shaft 2 is installed on the bearing support 17 through the bearing 21 that is arranged at two ends, and the two ends of said bearing 21 also are provided with shaft end seal device 5 and the fuel tank 22 that supplies bearing 21 to lubricate.
Said every grade of gas compression unit has diffusion district and recirculating zone; The casing 1 at place, said diffusion district is defined as the diffusion housing; Said vane diffuser 7 comprises that most are installed in the blade 9 on the said diffusion housing 8; This vane diffuser 7 will flow along the direction that the diffusion blade limits from the air-flow with big flow velocity that impeller 16 comes out, and improves the diffusion degree of air-flow, makes kinetic energy effectively be converted into the pressure ability.
In the present embodiment, said each blade 9 has assembly department, and said assembly department is provided with locating stud 91; And in diffusion housing 8 mounting blades 9 positions, the locating stud 91 of corresponding each blade 9 is provided with corresponding positioning hole 81; When design, can the diffusion blade be made separately like this, after casing machines, after blade is threaded to the precalculated position; Behind location in the positioning hole 81 that the locating stud on the blade 9 91 is inserted on the diffusion housing 8, and the assembling of realization blade 9 and diffusion housing 8.
When needs are changed blade 9; Only need former blade is taken off from diffusion housing 8, the positioning hole on the locating stud insertion diffusion housing of new blade is got final product, thus the quick replacing of realization blade; Simplify the assembling and the maintenance process of centrifugal gas compressing equipment, reduced maintenance cost.
Technology contents of the utility model and technical characteristics have disclosed as above; Yet those of ordinary skill in the art still maybe be based on the teaching of the utility model and announcements and are done all replacement and modifications that does not deviate from the utility model spirit; Therefore; The utility model protection domain should be not limited to the content that embodiment discloses, and should comprise various replacement and the modifications that do not deviate from the utility model, and is contained by the present patent application claim.
Claims (4)
1. the vane diffuser of a centrifugal gas compressing equipment; It is characterized in that: said vane diffuser comprises that most are arranged on the blade on the gas compressing equipment housing; Be formed with several grades of gas compression unit in the housing of said gas compressing equipment; Said every grade of gas compression unit has the diffusion district, and the housing at place, said diffusion district is the diffusion housing; Said blade is provided with locating piece, and said diffusion housing is provided with the positioning hole of most fixing said blades, and said blade pass is crossed said locating piece and is fixedly installed on the said diffusion housing.
2. the vane diffuser of a centrifugal gas compressing equipment as claimed in claim 1, it is characterized in that: said locating piece is a locating stud.
3. the vane diffuser of a centrifugal gas compressing equipment as claimed in claim 1, it is characterized in that: said every grade of gas compression unit also comprises the recirculating zone.
4. the vane diffuser of a centrifugal gas compressing equipment as claimed in claim 1 is characterized in that: said blade pass is crossed said locating piece and is cooperated with the location of positioning hole and realize that blade is connected with the assembling of diffusion housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201273731U CN202545366U (en) | 2012-03-30 | 2012-03-30 | Blade diffuser of centrifugal gas compression equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201273731U CN202545366U (en) | 2012-03-30 | 2012-03-30 | Blade diffuser of centrifugal gas compression equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545366U true CN202545366U (en) | 2012-11-21 |
Family
ID=47166008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201273731U Expired - Fee Related CN202545366U (en) | 2012-03-30 | 2012-03-30 | Blade diffuser of centrifugal gas compression equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114729648A (en) * | 2019-11-27 | 2022-07-08 | 日立环球生活方案株式会社 | Blower and washing machine |
-
2012
- 2012-03-30 CN CN2012201273731U patent/CN202545366U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114729648A (en) * | 2019-11-27 | 2022-07-08 | 日立环球生活方案株式会社 | Blower and washing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20180330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |