CN203308785U - Steel middle case for multi-stage blower - Google Patents
Steel middle case for multi-stage blower Download PDFInfo
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- CN203308785U CN203308785U CN2013203776227U CN201320377622U CN203308785U CN 203308785 U CN203308785 U CN 203308785U CN 2013203776227 U CN2013203776227 U CN 2013203776227U CN 201320377622 U CN201320377622 U CN 201320377622U CN 203308785 U CN203308785 U CN 203308785U
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- impeller
- wallboard
- disk
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Abstract
The utility model relates to a steel middle case for a multi-stage blower, which belongs to the technical field of blowers. The technical scheme is as follows: the steel middle case comprises a steel framework (1), disc-shaped clapboards (2) and an impeller sealing ring (3), wherein the two disc-shaped clapboards (2) are arranged between two adjacent stages of impellers; the parts of the two disc-shaped clapboards, close to impeller shafts, are small in separated distance, and sealed by the impeller sealing ring; the parts of the two disc-shaped clapboards, away from the impeller shafts, are large in separated distance, and connected in a sealing manner by the steel framework, and a sealed annular space is formed among the two disc-shaped clapboards, the steel framework and the impeller sealing ring, and has a wide outer part and a narrow inner part. The steel middle case is formed by mutually welding the components, performing stress elimination treatment, and then performing machining. According to the steel middle case disclosed by the utility model, the problems of complex structure and high rejection rate of the cast middle case of a fan are solved, the manufacturing accuracy of the middle case is improved, and the manufacturing cost is decreased; the resistance of a compressed gas in the middle case is reduced, the efficiency of the fan is improved, and the middle case is suitable for serialized multi-variety production for the multi-stage blower.
Description
Technical field
The utility model relates to a kind of multistage blowers steel intermediate casing, belongs to the blower technical field.
Background technique
The gas compression of multistage blowers is that first order impeller enters into the intermediate casing that return channel (cast iron) and intermediate (cast iron) form by inlet casing inspiration gas and after compressing, then entering second level impeller compresses again, repeatedly compress successively, finally by the casing of giving vent to anger, discharged.The background technique major measure: intermediate casing is to make return channel and intermediate is assembled into by gray iron, and the casting all-in-one-piece is also arranged; The problem that background technique exists is: waste product easily appears in the first casting intermediate casing complex structure.The second accuracy of manufacturing is low, cost is high.The 3rd pressurized gas runner resistance is large, and the 4th is not suitable for many variety production, and the adaptation of product is poor.
The model utility content
The utility model purpose is to provide a kind of multistage blowers steel intermediate casing, manufacture component precision is high, cost is low, structure optimization is easily manufactured, reduced the flow passage resistance force of waterproof of pressurized gas, be applicable to many variety production, the product structure strong adaptability, well solved the problems referred to above that background technique exists.
Technical solutions of the utility model are: multistage blowers steel intermediate casing, comprise Steel Skeleton, disk partition and impeller sealing ring, two disk partitions are set between adjacent both stage impellers, two disk partitions are narrower apart near the position of impeller shaft, and seal by impeller sealing ring; Two disk partitions at a distance of wider, and seals connection by Steel Skeleton away from the position of impeller shaft, the annular space of a sealing of formation between two disk partitions and Steel Skeleton and impeller sealing ring, and this space is wide outside and narrow inside.
The utility model also is provided with inter-stage seal ring, wallboard, guide plate and diffusion changed course ring, between impeller shaft and wallboard, is provided with the inter-stage seal ring, and the outer of wallboard is provided with guide plate and diffusion changed course ring.
Described Steel Skeleton is provided with cooling liquid inlet and cooling liquid outlet.Between described two disk partitions, be provided with stiffening rib; Between disk partition and wallboard, be provided with air-duct clapboard.
Disk partition and Steel Skeleton weld together, and stiffening rib is welded between two disk partitions, and air-duct clapboard is welded between disk partition and wallboard, and guide plate and diffusion changed course boxing are connected between wallboard and Steel Skeleton.
The beneficial effects of the utility model are: solved blower fan casting intermediate casing complex structure, easily occurred the waste product problem having improved the intermediate casing accuracy of manufacturing, reduced manufacture cost; Reduce the resistance of pressurized gas in intermediate casing inside, improved the efficiency of blower fan, be applicable to the many variety production of multistage blowers seriation.
The accompanying drawing explanation
Fig. 1 is the utility model overall schematic;
Fig. 2 is the utility model structural representation;
In figure: Steel Skeleton 1, disk partition 2, impeller sealing ring 3, stiffening rib 4, air-duct clapboard 5, inter-stage seal ring 6, wallboard 7, guide plate 8, diffusion changed course ring 9, cooling liquid outlet 10, cooling liquid inlet 11.
Embodiment
Below in conjunction with accompanying drawing, by example, the utility model is described further.
Multistage blowers steel intermediate casing, comprise Steel Skeleton 1, disk partition 2 and impeller sealing ring 3, and two disk partitions are set between adjacent both stage impellers, and two disk partitions are narrower apart near the position of impeller shaft, and seal by impeller sealing ring; Two disk partitions at a distance of wider, and seals connection by Steel Skeleton away from the position of impeller shaft, the annular space of a sealing of formation between two disk partitions and Steel Skeleton and impeller sealing ring, and this space is wide at the top and narrow at the bottom.The utility model also is provided with inter-stage seal ring 6, wallboard 7, guide plate 8 and diffusion changed course ring 9, between impeller shaft and wallboard, is provided with the inter-stage seal ring, and the outer of wallboard is provided with guide plate and diffusion changed course ring.
Described Steel Skeleton is provided with cooling liquid inlet 11 and cooling liquid outlet 10.Between described two disk partitions, be provided with stiffening rib 4; Between disk partition and wallboard, be provided with air-duct clapboard 5.
Disk partition and Steel Skeleton weld together, and stiffening rib is welded between two disk partitions, and air-duct clapboard is welded between disk partition and wallboard, and guide plate and diffusion changed course boxing are connected between wallboard and Steel Skeleton.
The present embodiment is by one of Steel Skeleton, two of disk partitions, one of impeller sealing ring, many of stiffening ribs, many of air-duct clapboards, one of inter-stage seal ring, one of wallboard, many of guide plates, one, diffusion changed course ring, be welded to each other and form, after through eliminating stress, processing, carry out machining and complete making.
Claims (4)
1. multistage blowers steel intermediate casing, it is characterized in that: comprise Steel Skeleton (1), disk partition (2) and impeller sealing ring (3), two disk partitions are set between adjacent both stage impellers, two disk partitions are narrower apart near the position of impeller shaft, and seal by impeller sealing ring; Two disk partitions at a distance of wider, and seals connection by Steel Skeleton away from the position of impeller shaft, the annular space of a sealing of formation between two disk partitions and Steel Skeleton and impeller sealing ring, and this space is wide outside and narrow inside.
2. multistage blowers steel intermediate casing according to claim 1, it is characterized in that also being provided with inter-stage seal ring (6), wallboard (7), guide plate (8) and diffusion changed course ring (9), between impeller shaft and wallboard, be provided with the inter-stage seal ring, the outer of wallboard is provided with guide plate and diffusion changed course ring.
3. multistage blowers steel intermediate casing according to claim 1 and 2, is characterized in that described Steel Skeleton is provided with cooling liquid inlet and cooling liquid outlet; Between described two disk partitions, be provided with stiffening rib (4); Between disk partition and wallboard, be provided with air-duct clapboard (5).
4. multistage blowers steel intermediate casing according to claim 2, it is characterized in that disk partition and Steel Skeleton weld together, stiffening rib is welded between two disk partitions, air-duct clapboard is welded between disk partition and wallboard, and guide plate and diffusion changed course boxing are connected between wallboard and Steel Skeleton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203776227U CN203308785U (en) | 2013-06-28 | 2013-06-28 | Steel middle case for multi-stage blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203776227U CN203308785U (en) | 2013-06-28 | 2013-06-28 | Steel middle case for multi-stage blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203308785U true CN203308785U (en) | 2013-11-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203776227U Expired - Fee Related CN203308785U (en) | 2013-06-28 | 2013-06-28 | Steel middle case for multi-stage blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203308785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007126A (en) * | 2021-02-26 | 2021-06-22 | 英飞同仁风机股份有限公司 | Multi-stage centrifugal blower partition plate, preparation method thereof and multi-stage centrifugal blower |
-
2013
- 2013-06-28 CN CN2013203776227U patent/CN203308785U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007126A (en) * | 2021-02-26 | 2021-06-22 | 英飞同仁风机股份有限公司 | Multi-stage centrifugal blower partition plate, preparation method thereof and multi-stage centrifugal blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180408 Address after: 063020 Qinghua Road, Tangshan City high tech Zone, Hebei Province, No. 7 Co-patentee after: Tangshan City Environmental Protection Engineering Co., Ltd. Patentee after: Tangshan Yiren Blower Manufacturing Co., Ltd. Address before: 063020 Qinghua Road, Tangshan City high tech Zone, Hebei Province, No. 7 Patentee before: Tangshan Yiren Blower Manufacturing Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20180628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |