CN203257718U - Dual-suction centrifugal blower - Google Patents
Dual-suction centrifugal blower Download PDFInfo
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- CN203257718U CN203257718U CN 201320304640 CN201320304640U CN203257718U CN 203257718 U CN203257718 U CN 203257718U CN 201320304640 CN201320304640 CN 201320304640 CN 201320304640 U CN201320304640 U CN 201320304640U CN 203257718 U CN203257718 U CN 203257718U
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Abstract
The utility model relates to turbo-machinery applied to the field of acid making, and particularly relates to a dual-suction centrifugal blower. The dual-suction centrifugal blower comprises a main shaft, a semi-open type ternary efficient impeller, a bearing, a bearing box, a type ring, an upper blower shell and a lower blower shell, wherein the upper blower shell and the lower blower shell are horizontally subdivided. The type ring comprises an upper type ring and a lower type ring, wherein the shapes and the structures of the upper type ring and the lower type ring are the same; the lower type ring is installed on the lower blower shell; the upper type ring and the lower type ring are connected on a horizontal split; the upper type ring is in clearance fit with the upper blower shell. Because the type ring is designed to be of the upper half structure and the lower half structure, wherein the shapes and the structures of the upper half structure and the lower half structure are the same, the dual-suction centrifugal blower effectively solves the problem that a type ring of a double-supporting structure is hard to assemble; because the upper type ring is installed on the lower type ring, the lower type ring is installed on the lower blower shell, the upper type ring is in clearance fit with the upper blower shell, and the lower type ring is adjusted through an adjustment gasket so as to achieve the purposes that the gap between the whole type ring and the semi-open type ternary efficient impeller is adjusted, and the type ring can be more easily and conveniently adjusted and maintained.
Description
Technical field
The utility model relates to the turbomachinery that is applied to the relieving haperacidity field, specifically a kind of dual-sucking type centrifugal blower.
Background technique
The dual-sucking type centrifugal blower is the nucleus equipment of sulphuric acid plant, is used for carrying air before the tower drier in the relieving haperacidity flow process or the SO behind the tower
2Process gas.Along with device maximizes, technological process is evolved first, on the double suction blower fan structure from the closed binary impeller to the enclosed 3 d impeller, again to semi-open type ternary high-efficiency vane wheel, guarantee that with the Spielpassung of type ring and half-opened impeller gas is compressed in type ring and wheel disc, the formed runner of blade.The type ring of general half-opened impeller is cast inblock processing, because this type is dual-support structure, and type ring assembling difficulty made in one piece, the type czermak space also is difficult to guarantee.
The model utility content
The problem that assembling is difficult, the type czermak space is difficult to guarantee that exists in order to solve the existing cast inblock type ring of dual-sucking type centrifugal blower, the purpose of this utility model is to provide a kind of dual-sucking type centrifugal blower of type ring dimidiation.The type ring of this dual-sucking type centrifugal blower dimidiation has been eliminated the narrow limitation of type ring assembling, and the advantage of the large flow of dual-sucking type half-opened impeller blower, high pressure ratio, lifting market core competitiveness are given full play in the gap of assurance type ring and half-opened impeller.
The purpose of this utility model is achieved through the following technical solutions:
The utility model comprises upper casing and the lower housing of main shaft, semi-open type ternary high-efficiency vane wheel, bearing, bearing housing, type ring and horizonally split, and described type ring is divided into shape, mo(u)ld top half ring and mo(u)ld bottom half ring that structure is identical.
Wherein: described mo(u)ld bottom half ring is installed on the lower housing, and the mo(u)ld top half ring links to each other at the horizontal flange place with the mo(u)ld bottom half ring, is Spielpassung between described mo(u)ld top half ring and the upper casing; Be provided with the adjustment pad between described mo(u)ld bottom half ring and the lower housing, by this adjustment pad adjust described mo(u)ld bottom half ring so that adjust whole type ring and described semi-open type ternary high-efficiency vane wheel between axial distance; Described mo(u)ld top half ring and mo(u)ld bottom half ring are provided with respectively platform at the horizontal flange place, and it is affixed that mo(u)ld top half ring and mo(u)ld bottom half ring close bolt at platform place separately by locating stud and handle; Closing, type ring full circle is processed about platform place separately for described mo(u)ld top half ring and mo(u)ld bottom half ring; Seal by the O RunddichtringO respectively between the external peripheral surface of described mo(u)ld top half ring and the upper casing and between the external peripheral surface of mo(u)ld bottom half ring and the lower housing.
Advantage of the present utility model and good effect are:
1. type ring of the present utility model is designed to shape, up and down two halves structure that structure is identical, has effectively solved the problem that dual-support structure type ring is difficult to assemble.
2. mo(u)ld top half ring of the present utility model is installed on the mo(u)ld bottom half ring, the mo(u)ld bottom half ring is installed on the lower housing, it is Spielpassung between mo(u)ld top half ring and the upper casing, adjust the mo(u)ld bottom half ring and reach the effect of adjusting whole type ring and semi-open type ternary high-efficiency vane wheel gap by adjusting pad, make the adjustment of type ring, service work more simple and convenient.
3. type ring full circle of the present utility model processing, up and down closing, mismatch when effectively avoiding the type ring to install, casing thermal distortion are on the impact of type czermak space.
4. adopt the sealing of O RunddichtringO between type ring of the present utility model and the casing, reduced interior leakage circulation loss, guarantee overall performance.
Description of drawings
Fig. 1 is internal structure schematic representation of the present utility model;
Fig. 2 is internal structure partial enlarged drawing of the present utility model;
Fig. 3 is the perspective view of the utility model type ring;
Fig. 4 is the enlarged view at I place among Fig. 1;
Wherein: 1 is upper casing, and 2 is lower housing, and 3 is the mo(u)ld top half ring, 4 is the mo(u)ld bottom half ring, and 5 is main shaft, and 6 is semi-open type ternary high-efficiency vane wheel, 7 is thrust bearing, and 8 is spring bearing, and 9 is the bearing block, 10 is bearing housing, and 11 is vane diffuser, and 12 is platform, 13 is locating stud, 14 for handle closes bolt, and 15 for adjusting pad, and 16 is the O RunddichtringO.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model comprises upper casing 1 and the lower housing 2 of main shaft 5, semi-open type ternary high-efficiency vane wheel 6, thrust bearing 7, spring bearing 8, bearing housing 10, bearing block 9, vane diffuser 11, type ring and horizonally split, its medium-sized ring is divided into shape, mo(u)ld top half ring 3 and mo(u)ld bottom half ring 4 that structure is identical as shown in Figure 3.Upper casing 1, lower housing 2, mo(u)ld top half ring 3, mo(u)ld bottom half ring 4 and vane diffuser 11 are the stator group part of blower, and main shaft 5 and semi-open type ternary high-efficiency vane wheel 6 are rotor group part.Main shaft 5 is installed in the middle of the upper and lower casing 1,2, the two ends of main shaft 5 are passed by upper and lower casing 1,2 both sides respectively, and connecting respectively thrust bearing 7, spring bearing 8, thrust bearing 7, spring bearing 8 are placed in the bearing housing 10 that is fixed on the bearing block 9.Semi-open type ternary high-efficiency vane wheel 6 is arranged in upper and lower casing 1,2, and is installed on the main shaft 5, with main shaft 5 rotations.
Mo(u)ld top half ring 3 and mo(u)ld bottom half ring 4 are provided with respectively platform 12 at the horizontal flange place.As shown in Figure 2, mo(u)ld bottom half ring 4 is fixed on the lower housing 2, and mo(u)ld top half ring 3 connects fastening by locating stud 13 and closing bolt 14 at platform 12 places separately with mo(u)ld bottom half ring 4, is Spielpassung between mo(u)ld top half ring 3 and the upper casing 1.Mo(u)ld top half ring 3 and mo(u)ld bottom half ring 4 are up and down closing at platform 12 places separately, the processing of type ring full circle, and mismatch when effectively having avoided the type ring to install, casing thermal distortion are on the impact of type czermak space.Seal by O RunddichtringO 16 respectively between the external peripheral surface of mo(u)ld top half ring 3 and the upper casing 1 and between the external peripheral surface of mo(u)ld bottom half ring 4 and the lower housing 2, reduced interior leakage circulation loss, guarantee overall performance.
As shown in Figure 4, be provided with between mo(u)ld bottom half ring 4 and the lower housing 2 and adjust pad 15, adjust mo(u)ld bottom half rings 4 and then adjust axial distance between whole type ring and the semi-open type ternary high-efficiency vane wheel 6 by this adjustment pad 15, make the adjustment of type ring, service work more simple and convenient.
Because the type of dual-sucking type centrifugal blower of the present utility model is dual-support structure, type ring assembling difficulty made in one piece is so type ring of the present utility model is designed to shape, the identical up and down two halves structure of structure.Because of relatively huge (the about 2700mm of horizontal flange height of machine contour structure size; the about 4500mm of casing height); under operating condition; because the thermal distortion of metallic material; the amount of deformation of upper casing 1 is about 5～10 times of lower housing 2 amount of deformation; the type czermak space that the thermal walking of upper casing 1 produces is overproof; be easy to cause the disorderly closedown of unit; so adopt mo(u)ld top half ring 3 to be installed on the mo(u)ld bottom half ring 4; mo(u)ld bottom half ring 4 is installed in the structure on the lower housing 2; make mo(u)ld top half ring 3 and upper casing 1 Spielpassung, avoided owing to upper casing 1 displacement causes too greatly the overproof problem of type czermak space.Adjust pad 15 adjustment mo(u)ld bottom half rings 4 by using, adjust the gap between whole type ring and the semi-open type ternary high-efficiency vane wheel 6, and make the adjustment of type czermak space more easy.
Upper and lower type ring 3 of the present utility model, 4 adopts the HT250 casting, and excellent performance has reduced manufacture cost.
Working principle of the present utility model is:
Gas enters induction chamber by upper and lower casing 1,2, semi-open type ternary high-efficiency vane wheel 6 with main shaft 5 High Rotation Speeds to air work, make gas upper and lower type ring 3,4 and the runner that forms of semi-open type ternary high-efficiency vane wheel 6 in compressed, enter again vane diffuser 11, further make gas kinetic energy be converted to pressure energy, finally exported by exhaust chamber through upper and lower casing 1,2 volute casing from vane diffuser 11 pressurized gas out.
Claims (6)
1. dual-sucking type centrifugal blower, comprise upper casing and the lower housing of main shaft, semi-open type ternary high-efficiency vane wheel, bearing, bearing housing, type ring and horizonally split, it is characterized in that: described type ring is divided into shape, mo(u)ld top half ring (3) and mo(u)ld bottom half ring (4) that structure is identical.
2. by dual-sucking type centrifugal blower claimed in claim 1, it is characterized in that: described mo(u)ld bottom half ring (4) is installed on the lower housing (2), mo(u)ld top half ring (3) links to each other at the horizontal flange place with mo(u)ld bottom half ring (4), is Spielpassung between described mo(u)ld top half ring (3) and the upper casing (1).
3. by claim 1 or 2 described dual-sucking type centrifugal blowers, it is characterized in that: be provided with between described mo(u)ld bottom half ring (4) and the lower housing (2) and adjust pad (15), by this adjustments pad (15) adjustment described mo(u)ld bottom half ring (4) so that adjust whole type ring and described semi-open type ternary high-efficiency vane wheel (6) between axial distance.
4. by claim 1 or 2 described dual-sucking type centrifugal blowers, it is characterized in that: described mo(u)ld top half ring (3) and mo(u)ld bottom half ring (4) are provided with respectively platform (12) at the horizontal flange place, and mo(u)ld top half ring (3) and mo(u)ld bottom half ring (4) are located by locating stud (13) and affixed closing bolt (14) at platform (12) separately.
5. by dual-sucking type centrifugal blower claimed in claim 4, it is characterized in that: described mo(u)ld top half ring (3) and mo(u)ld bottom half ring (4) are located up and down closing the processing of type ring full circle at platform (12) separately.
6. by claim 1 or 2 described dual-sucking type centrifugal blowers, it is characterized in that: seal by O RunddichtringO (16) respectively between the external peripheral surface of described mo(u)ld top half ring (3) and the upper casing (1) and between the external peripheral surface of mo(u)ld bottom half ring (4) and the lower housing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320304640 CN203257718U (en) | 2013-05-29 | 2013-05-29 | Dual-suction centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320304640 CN203257718U (en) | 2013-05-29 | 2013-05-29 | Dual-suction centrifugal blower |
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| Publication Number | Publication Date |
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| CN203257718U true CN203257718U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320304640 Expired - Lifetime CN203257718U (en) | 2013-05-29 | 2013-05-29 | Dual-suction centrifugal blower |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088818A (en) * | 2014-08-06 | 2014-10-08 | 大唐淮北发电厂 | Aligning method of static blade fan for power plant |
| CN104279180A (en) * | 2014-09-09 | 2015-01-14 | 兰州水泵总厂 | Double-suction impeller |
| CN104791263A (en) * | 2015-04-27 | 2015-07-22 | 江苏金通灵流体机械科技股份有限公司 | Single-stage double-suction high-speed centrifugal blower |
| CN104863643A (en) * | 2015-04-22 | 2015-08-26 | 上海理工大学 | Radial centrifugal turbine |
| CN106050735A (en) * | 2016-06-03 | 2016-10-26 | 中国航空动力机械研究所 | Double-sided centrifugal impeller and machining method thereof |
-
2013
- 2013-05-29 CN CN 201320304640 patent/CN203257718U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088818A (en) * | 2014-08-06 | 2014-10-08 | 大唐淮北发电厂 | Aligning method of static blade fan for power plant |
| CN104279180A (en) * | 2014-09-09 | 2015-01-14 | 兰州水泵总厂 | Double-suction impeller |
| CN104863643A (en) * | 2015-04-22 | 2015-08-26 | 上海理工大学 | Radial centrifugal turbine |
| CN104791263A (en) * | 2015-04-27 | 2015-07-22 | 江苏金通灵流体机械科技股份有限公司 | Single-stage double-suction high-speed centrifugal blower |
| CN106050735A (en) * | 2016-06-03 | 2016-10-26 | 中国航空动力机械研究所 | Double-sided centrifugal impeller and machining method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |
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| CX01 | Expiry of patent term |