CN103122874B - Shaft-seal-free high temperature pump - Google Patents
Shaft-seal-free high temperature pump Download PDFInfo
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- CN103122874B CN103122874B CN201310064314.3A CN201310064314A CN103122874B CN 103122874 B CN103122874 B CN 103122874B CN 201310064314 A CN201310064314 A CN 201310064314A CN 103122874 B CN103122874 B CN 103122874B
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- pump housing
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Abstract
The present invention relates to high temperature pump, particularly Shaft-seal-free high temperature pump.At the pump housing center of circle and end cover designs bearing position, concentric with the pump housing for locating impeller shaft.The exterior edge face fitted seal lid of end cap is as sealing surface.The pump housing all adopts heating resisting metal material RTGr 16 to process, and the pump housing and end cap connection opening, utilize copper backing to seal.Impeller shaft and sealing cover are processed as one, and when impeller shaft is through the end cap of the pump housing, the sealing surface on impeller shaft, just in time covers on the sealing surface of end cap.Impeller shaft one of being connected with motor, utilize spline, can directly be connected with motor, sealing cover utilizes the promotion of spring, sealing cover and end cap is produced and seals.Impeller axle rotates.When mounted, impeller is arranged on impeller shaft, the pump housing adopts pump housing support to be connected with motor, during work, motor drive activity capping is rotated, and activity capping impeller is rotated, without shaft seal part, there is no nonmetallic material, operating temperature can be brought up to more than 500 DEG C, can normally work.
Description
The present invention relates to high temperature pump, particularly Shaft-seal-free high temperature pump.
At present, the high temperature pump of known use, thinks that industry is made contributions, and also there are some shortcomings, and the highest use medium temperature only has 350 DEG C, can not meet the needs of industrial upgrades.Reason is the shaft seal of pump is that process for un-metal material forms, and shaft seal can only conditional operation below 350 degree.At present, spiral working pump (application number: 2011101965802) use medium temperature can work normally under the temperature more than 500 DEG C, shortcoming is that lift of pump is low is also had.If the technological scheme of these two kinds of pumps is combined, become a kind of new technological scheme, make high temperature pump keep original lift, change operational temperature conditions, the working medium of high temperature pump normally can be worked more than 500 DEG C.Industry conveying and the needs of upgrading that circulate can be met.
The technical issues that need to address, are the movable sealing process spiral working pump, can are reasonably applied in the shaft seal of high temperature pump, carry out technical combinations, make high temperature pump also without shaft seal, normally can work more than 500 DEG C.The upgrading of industry conveying and circulation can be solved.
Technological scheme: Shaft-seal-free high temperature pump (Fig. 1), in order to the pump housing center of circle and impeller shaft, bearing position can be designed on the pump housing center of circle simultaneously, (Fig. 1) at a design end cap 12 of the pump housing 1, the center of circle design bearing position 6 of end cap, bearing position 6 is concentric with the bearing position 2 of the pump housing, concentric with the pump housing 1 for locating impeller shaft 13.The exterior edge face of end cap 12, with highi degree of accuracy processing exterior edge face, the precision of processing, with the sealing surface of shaft seal, accuracy tolerance precision is processed, using fitted seal lid as end bracket enclosed face 7 (Fig. 1).The pump housing all adopts heating resisting metal material RTGr 16 to process, and the pump housing and end cap connection opening utilize copper backing 5 to seal, such pump housing also just without nonmetallic material, to improve the serviceability temperature of the pump housing.Impeller shaft 13 (Fig. 2) and sealing cover are processed as one, sealing cover machining accuracy, also the sealing surface of shaft seal is adopted, accuracy tolerance precision is processed, when impeller shaft 13 is through the end cap 12 of the pump housing, sealing surface 4 on impeller shaft 13, just in time covers on the sealing surface 7 of end cap, coordinates as sealing using end cap.Impeller shaft one of being connected with motor 9, be processed into internal spline 3, can be directly connected with motor, between such sealing cover and end cap, just had adjustable range, sealing cover utilizes the promotion of spring 11, sealing cover and end cap is produced and seals (Fig. 1).Sealing surface also just becomes activity capping, and impeller axle rotates, and the pump housing does not just need shaft seal.When mounted, impeller 8 is arranged on impeller shaft, the pump housing 1 adopts pump housing support 10 to be connected with motor 9, during work, motor 9 drive activity capping is rotated, activity capping impeller is rotated, and without shaft seal part, does not have nonmetallic material, operating temperature can be brought up to more than 500 DEG C, can normally work.
Beneficial effect: high temperature pump under original lift condition, can improve operating temperature to more than 500 DEG C.Because there is no shaft seal, without nonmetallic material, operating life can be extended.High temperature pump only improves operating conditions, does not improve processing expense, improves the service behaviour of high temperature pump.RTCr 16 heat resisting cast iron, resistance to nitric acid causticity is good, for the needs of hot industry and high temperature chemical industry, the upgrading of conveying and circulation.
Embodiment: have shown in Fig. 1, pump housing bearing position 2 and bearing with end cover position 6 is utilized to make impeller shaft concentric with the pump housing, the exterior edge face of end cap highi degree of accuracy processing coordinates with impeller shaft sealing surface 4 for sealing surface 7, installing impeller 8, installing copper backing 5 between the pump housing and end cap when assembling.In force, as centrifugal pump, submersible pump, self-priming pump, volute pump, Vortex pump, turbulence pump, wait them to have common structural feature, they are by the pump housing, impeller, shaft seal composition operating conditions, the main distinction is at impeller, as long as the structural response of impeller and the pump housing, just above-mentioned different pump can be formed, Shaft-seal-free high temperature pump, that the shaft seal of pump is made into capping, so said pump can use the technological scheme of Shaft-seal-free high temperature pump, to improve the temperature conditions of use.
Figure of description illustrates:
Fig. 1 is Shaft-seal-free high temperature pump structural drawing,
Fig. 2 is impeller shaft figure.
In figure 1 is the pump housing.2 is pump housing bearing positions.3 is internal splines.4 is sealing surfaces.5 is copper backings.6 is bearing with end cover positions.7 is end bracket enclosed faces.8 is impellers.9 motor.10 pump housing supports.11 springs.12 end caps.13 impeller shafts.
Claims (3)
1. Shaft-seal-free high temperature pump: by the pump housing, impeller, impeller shaft, end cap, the pump of sealing cover composition, it is characterized in that: in order to the pump housing center of circle and impeller shaft, can be with one heart, bearing position is designed in the pump housing center of circle, at a design end cap of the pump housing, the center of circle design bearing position of end cap, bearing position is concentric with the bearing position of the pump housing, concentric with the pump housing for locating impeller shaft, the exterior edge face of end cap, with highi degree of accuracy processing exterior edge face, the precision of processing, with the sealing surface of shaft seal, accuracy tolerance precision is processed, to join platform sealing cover as sealing surface, the pump housing all adopts heating resisting metal material RTGr 16 to process, the pump housing and end cap connection opening, copper backing is utilized to seal, such pump housing is also just without nonmetallic material, to improve the serviceability temperature of the pump housing, impeller shaft and sealing cover are processed as one, sealing cover machining accuracy, also the sealing surface of shaft seal is adopted, accuracy tolerance precision is processed, when impeller shaft is through the end cap of the pump housing, sealing surface on impeller shaft, just in time cover on the sealing surface of end cap, platform is joined as sealing using end cap, impeller shaft one of being connected with motor, be processed into internal spline, motor reel is also processed into spline, can directly be connected with motor, between such sealing cover and end cap, just there is adjustable range, sealing cover utilizes the promotion of spring, sealing cover and end cap are produced seal, sealing surface also just becomes activity capping, during drive, wheel shaft rotates, the pump housing does not just need shaft seal, when mounted, impeller is arranged on impeller shaft, the pump housing adopts pump housing support to be connected with motor, during work, motor drive activity capping is rotated, activity capping impeller is rotated, without shaft seal part, there is no nonmetallic material, operating temperature can be brought up to more than 500 DEG C, can normally work.
2. Shaft-seal-free high temperature pump as claimed in claim 1, is characterized in that: with the pump housing, shaft seal, and the pump of impeller composition operating conditions, can apply shaftless encapsulation technique, improve the serviceability temperature of pump, increase using scope.
3. Shaft-seal-free high temperature pump as claimed in claim 1, it is characterized in that: the service behaviour improving high temperature pump, the pump housing all adopts RTCr16 heat resisting cast iron, and resistance to nitric acid causticity is good, for needing before hot industry and high temperature chemical industry, conveying and the upgrading circulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310064314.3A CN103122874B (en) | 2013-02-21 | 2013-02-21 | Shaft-seal-free high temperature pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310064314.3A CN103122874B (en) | 2013-02-21 | 2013-02-21 | Shaft-seal-free high temperature pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103122874A CN103122874A (en) | 2013-05-29 |
| CN103122874B true CN103122874B (en) | 2015-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310064314.3A Active CN103122874B (en) | 2013-02-21 | 2013-02-21 | Shaft-seal-free high temperature pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN103122874B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728157A (en) * | 2015-01-04 | 2015-06-24 | 张其明 | Internally closed high-temperature pump |
| CN104653507A (en) * | 2015-03-05 | 2015-05-27 | 罗显平 | Internal combustion engine water pump |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6884022B2 (en) * | 2003-04-25 | 2005-04-26 | General Motors Corporation | Diesel engine water pump with improved water seal |
| JP4711611B2 (en) * | 2003-08-20 | 2011-06-29 | 株式会社鶴見製作所 | Vertical electric pump |
| CN2674156Y (en) * | 2004-01-06 | 2005-01-26 | 哈尔滨理工大学 | High temp. magnetic pump |
| EP1711709A2 (en) * | 2004-01-16 | 2006-10-18 | Polaris Pool Systems, Inc. | Motor-driven pump for pool or spa |
| CN102287377B (en) * | 2011-07-05 | 2013-01-23 | 张其明 | Spiral working pump |
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2013
- 2013-02-21 CN CN201310064314.3A patent/CN103122874B/en active Active
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| CN103122874A (en) | 2013-05-29 |
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Effective date of registration: 20191111 Address after: 314100 No.8, Kangxing Road, Dayun Town, Jiashan County, Jiaxing City, Zhejiang Province Patentee after: Jiashan Dayun Economic Development Industrial Co., Ltd Address before: 233200 Anhui County of Dingyuan Province Ding Si Yuan Xiang Long Road Town 12 Dong 1 room Patentee before: Zhang Qiming |