CN104329261A - High temperature distilled water circulating pump - Google Patents
High temperature distilled water circulating pump Download PDFInfo
- Publication number
- CN104329261A CN104329261A CN201410561832.0A CN201410561832A CN104329261A CN 104329261 A CN104329261 A CN 104329261A CN 201410561832 A CN201410561832 A CN 201410561832A CN 104329261 A CN104329261 A CN 104329261A
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- pump cover
- mechanical seal
- high temperature
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/06—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
- F04D29/447—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps rotating diffusers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a high temperature distilled water circulating pump. The high temperature distilled water circulating pump consists of a base, a coupling, a motor and a pump part, wherein a pump body is taken as a main body in the pump part; an impeller is arranged in the pump body; an outer pump cover is arranged on the outer end face of the pump body; an inner pump cover is arranged on the inner end face of the pump body and is provided with a mechanical seal; a shaft seat coaxially connected with the inner pump cover is supported on the base; a pump shaft extends out of two ends of the shaft seat; one end, facing the pump body, of the pump shaft is sequentially provided with the mechanical seal and the impeller in a positioning manner; the other end of the pump shaft is connected with the motor through the coupling. An inducer coaxially connected with the impeller is arranged in an inner cavity of a suction inlet of the outer pump cover to increase the pressure at the inlet of the impeller and reduce the cavitation intensity. In order to reduce the temperature of the mechanical seal in the inner pump cover, an annular water channel is formed in the inner pump cover; inner water cooling structures are arranged at bearing support positions at two ends of the shaft seat to improve the bearing working conditions, reduce the lubricant leakage probability and ensure that the sanitary condition of the pump is not reduced.
Description
Technical field
The present invention relates to a kind of water pump, specifically, the present invention relates to a kind of single stage single suction volute pump, particularly a kind of working medium is the recycle pump of hyperthermal distilled water.
Background technique
Evaporative type fresh water maker system and medical distilled water system all rely on pump to realize high temperature distillation water circulation, and in engineering, the pump of adapted is sanitation-grade hot water circulating pump, and this pump can effectively accomplish that distilled water circulates.But because the supporting application life of the special existing sanitation-grade hot water circulating pump of operating mode is short, major failure has the blade damage of impeller, and mechanical seal was easily lost efficacy, and the bearing heat waste operated in high temperature environments is serious.Tracing it to its cause is supporting sanitation-grade hot water circulating pump, the distilled water temperatures as high sucked when practical application 100 DEG C, add the pressure for vaporization of PIP lower than distilled water, vapor bubbles is full of in distilled water, treat that bubble enters pump inner high voltage district with distilled water, bubble pressurized breaks suddenly, and this cavitation phenomenon is noise to the side effect that pump brings, the blade of vibration and impeller produces spot corrosion.If pump runs under continuing to be in cavitation condition, what first damage is impeller, and mechanical seal and bearing are then because ambient temperature is high, also fragile.
Summary of the invention
The present invention is mainly for the sanitation-grade hot water circulating pump anti-cavitation scarce capacity of prior art, the high temperature distillation water-circulating pump that a kind of structure is simple, resistance to corrosion is strong, reliable is proposed, this pump improves anti-cavitation ability by strengthening suction pressure, and newly-increased hydrologic cycle cooling system improves mechanical seal and bearing working environment.
The present invention is achieved through the following technical solutions technical goal.
High temperature distillation water-circulating pump, it is made up of jointly base, shaft coupling, motor and pumping section.Described pumping section is based on the pump housing, and the built-in impeller of the pump housing, exterior edge face is equipped with outer pump cover, and pump cover in interior edge face is equipped, axially installs mechanical seal in the middle part of interior pump cover.The axle bed be coaxially connected with interior pump cover props up on base, and pump shaft stretches out from axle bed two ends, and one end positioned in sequence towards the pump housing installs mechanical seal, impeller, and the pump shaft towards the other end connects motor by shaft coupling.Its improvements are: be provided with the inducer be coaxially connected with impeller in the suction port inner chamber of described outer pump cover.Described interior pump cover is arranged with water annulus outside mechanical seal installation place, and closed water annulus is provided with the cooling water intake, the coolant outlet that stagger position.Supporting place of described axle bed bearings at both ends is provided with inner lead, and the inner lead two ends that inside communicates are respectively equipped with cooling water intake, coolant outlet, cause from one end into cooling water again from the other end discharge form in water-cooling structure.
In said structure, impeller is closed type structure, and the pump housing, impeller, inducer, outer pump cover and interior pump cover all manufacture with 316L stainless steel, have both met requirement against corrosion, and have met hygienic requirements again.
The present invention compared with prior art, has following good effect:
1, the suction port of outer pump cover sets up inducer, and structure is simple, makes easily;
2, the inducer of helix structure rotates with pump shaft, directly increases impeller eye pressure, can alleviate cavitation erosion and intensity occurs, alleviate the spot corrosion to impeller blade surface, reduces running noises and the vibration of pump;
3, interior water-cooling structure, improves the working environment of mechanical seal and bearing, improves the working life of friction pair.
Accompanying drawing explanation
Fig. 1 is structural profile schematic diagram of the present invention.
Fig. 2 is Fig. 1 left view.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the invention will be further described.
High temperature distillation water-circulating pump shown in Fig. 1, it is made up of jointly base 1, shaft coupling 10, motor 11 and pumping section.Described pumping section is based on the pump housing 2, and put the impeller 3 of closed type structure at the pump housing 2 inner chamber of horizontal type structure, the import of impeller 3 outwardly.The equipped outer pump cover 5 in exterior edge face of the pump housing 2, pump cover 6 in interior edge face is equipped, axially installs mechanical seal 7 in the middle part of interior pump cover 6.With the coaxial axle bed be connected 8 of interior pump cover 6 on base 1, pump shaft 9 stretches out from axle bed 8 two ends, and one end positioned in sequence towards the pump housing 2 installs mechanical seal 7, impeller 3.Pump shaft 9 towards the other end connects motor 11 by shaft coupling 10, forms and to be linked the drive mechanism that pump shaft 9 rotates by motor 11.Intensity is there is in the present invention in order to cavitate when slowing down pump operation, the inducer 4 that be connected coaxial with impeller 3 is provided with in the suction port inner chamber of outer pump cover 5, the inducer 4 of helix structure rotates with pump shaft 9, directly increases impeller 3 inlet pressure, and the inlet pressure of impeller 3 improves can alleviate cavitation erosion generation intensity.The low spot corrosion directly alleviated impeller 3 blade surface of cavitation intensity in pump, also reduces running noises and the vibration of pump simultaneously.Mechanical seal 7 is arranged in the middle part of interior pump cover 6, leans against impeller 3, and mechanical seal 7 is positioned at the temperature impact being subject to two aspects herein, one is the temperature of carrying hyperthermal distilled water, two is heats that friction pair generates when rotating, so mechanical seal 7 work under bad environment, working time is long just lost efficacy.The present invention, in order to improve the working environment of mechanical seal 7, installs the outer of mechanical seal 7 place at interior pump cover 6 and is arranged with water annulus 6.1, and the water annulus 6.1 closed is provided with the cooling water intake 6.2, the coolant outlet 6.3 that stagger position.The cooling water introduced takes away heat through water annulus 6.1, directly reduces the temperature of mechanical seal 7, improves running state.Long-time running, the temperature of axle bed 8 is also very high, although axle bed 8 penetrates heat transfer by the heat transfer of pump shaft 9 and the width of the pump housing 2, the ambient temperature of axle bed 8 is still very high, the lubricating oil that axle bed 8 is built-in is in high temperature environments thinning, easily pollute surrounding enviroment from the machine oil of slot leakage, even pollute the medium of transmission in pump, cause the problem that sanitary grade is not up to standard.The present invention is provided with inner lead 8.1 in supporting place of axle bed 8 bearings at both ends, and inner lead 8.1 two ends that inside communicates are respectively equipped with cooling water intake 8.2, coolant outlet 8.3.From the low-temperature cooling water that cooling water intake 8.2 is introduced during work, the cooling water heated up through heat exchange is discharged through inner lead 8.1, although water-cooling structure is simple in this kind, but cooling effect is fine, guarantee that the bearing that axle bed 8 is equipped with cause thermal damage did not occur, make the lubricating oil of adapted also can not be overheated thinning, thus can avoid internal leakage problem occurs.The present embodiment working medium is the distilled water of 100 DEG C.The product adopting said structure to make is supporting in evaporative type water generating machine peculiar to vessel, and can accomplish operation 9600 failure-free hours, this index exceeds nearly 2 times than prior art, greatly improves operational efficiency, reduces the supporting cost of user.The present invention is in order to accomplish that sanitary grade does not reduce, and manufactured by all flow passage components 316L stainless steels, concrete flow passage components have the pump housing 2, impeller 3, inducer 4, outer pump cover 5 and interior pump cover 6.Manufacture flow passage components with erosion resistant, although manufacture cost strengthens, sanitary grade is secure, failure rate is low, long service life, and because comprehensive benefit is good, the cost of material of increase can be ignored.
Claims (3)
1. a high temperature distillation water-circulating pump, it is made up of jointly base (1), shaft coupling (10), motor (11) and pumping section; Described pumping section based on the pump housing (2), the pump housing (2) built-in impeller (3), exterior edge face is equipped with outer pump cover (5), pump cover (6) in interior edge face is equipped, and mechanical seal (7) is axially installed in interior pump cover (6) middle part; Prop up on base (1) with the coaxial axle bed (8) be connected of interior pump cover (6), pump shaft (9) stretches out from axle bed (8) two ends, one end positioned in sequence towards the pump housing (2) installs mechanical seal (7), impeller (3), and the pump shaft (9) towards the other end connects motor (11) by shaft coupling (10); It is characterized in that: in the suction port inner chamber of described outer pump cover (5), be provided with the inducer (4) that be connected coaxial with impeller (3); Described interior pump cover (6) is arranged with water annulus (6.1) outside mechanical seal (7) installation place, and the water annulus (6.1) closed is provided with the cooling water intake (6.2), the coolant outlet (6.3) that stagger position; Described axle bed (8) bearings at both ends supporting place is provided with inner lead (8.1), inner lead (8.1) two ends that inside communicates are respectively equipped with cooling water intake (8.2), coolant outlet (8.3), cause from one end into cooling water again from the other end discharge form in water-cooling structure.
2. high temperature distillation water-circulating pump according to claim 1, is characterized in that: described impeller (3) is double shrouded wheel.
3. high temperature distillation water-circulating pump according to claim 1, is characterized in that: the described pump housing (2), impeller (3), inducer (4), outer pump cover (5) and interior pump cover (6) all manufacture with 316L stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561832.0A CN104329261A (en) | 2014-10-22 | 2014-10-22 | High temperature distilled water circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561832.0A CN104329261A (en) | 2014-10-22 | 2014-10-22 | High temperature distilled water circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104329261A true CN104329261A (en) | 2015-02-04 |
Family
ID=52404047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410561832.0A Pending CN104329261A (en) | 2014-10-22 | 2014-10-22 | High temperature distilled water circulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104329261A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106363413A (en) * | 2015-07-24 | 2017-02-01 | 杭州三花研究院有限公司 | Manufacture method for electronic pump |
| CN108518344A (en) * | 2018-03-28 | 2018-09-11 | 广东知识城运营服务有限公司 | A kind of efficient electric pumping unit |
| WO2020093109A1 (en) | 2018-11-08 | 2020-05-14 | Zip Industries (Aust) Pty Ltd | A pump assembly |
| CN112412820A (en) * | 2020-11-12 | 2021-02-26 | 昆山新莱洁净应用材料股份有限公司 | Sanitary-grade double-support high-pressure pump |
| CN112412819A (en) * | 2020-11-12 | 2021-02-26 | 昆山新莱洁净应用材料股份有限公司 | Sanitary-grade single-support high-pressure pump |
| CN113864246A (en) * | 2021-10-31 | 2021-12-31 | 浙江水泵总厂有限公司 | Bearing cooling structure and condensate pump with same |
| CN114001033A (en) * | 2021-10-31 | 2022-02-01 | 浙江水泵总厂有限公司 | Axial liquid inlet structure and multistage centrifugal pump with same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1318312A2 (en) * | 2001-12-06 | 2003-06-11 | Sachtleben Chemie GmbH | Shaft sealing system for rotary shafts on pumps |
| CN2690629Y (en) * | 2004-04-07 | 2005-04-06 | 李再成 | High temperature high pressure hot water circulation pump device |
| CN2784625Y (en) * | 2004-12-24 | 2006-05-31 | 上海凯泉泵业（集团）有限公司 | Improved hot-water circulating pump |
| CN1828063A (en) * | 2006-03-31 | 2006-09-06 | 浙江水泵总厂有限公司 | High temperature high pressure hot-water circulating pump |
| CN201321989Y (en) * | 2008-12-12 | 2009-10-07 | 上海凯泉泵业（集团）有限公司 | High pressure resistant, wearable and corrosion resistant high temperature pump |
| CN204175602U (en) * | 2014-10-22 | 2015-02-25 | 江苏振华泵业制造有限公司 | High temperature distillation water-circulating pump |
-
2014
- 2014-10-22 CN CN201410561832.0A patent/CN104329261A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1318312A2 (en) * | 2001-12-06 | 2003-06-11 | Sachtleben Chemie GmbH | Shaft sealing system for rotary shafts on pumps |
| CN2690629Y (en) * | 2004-04-07 | 2005-04-06 | 李再成 | High temperature high pressure hot water circulation pump device |
| CN2784625Y (en) * | 2004-12-24 | 2006-05-31 | 上海凯泉泵业（集团）有限公司 | Improved hot-water circulating pump |
| CN1828063A (en) * | 2006-03-31 | 2006-09-06 | 浙江水泵总厂有限公司 | High temperature high pressure hot-water circulating pump |
| CN201321989Y (en) * | 2008-12-12 | 2009-10-07 | 上海凯泉泵业（集团）有限公司 | High pressure resistant, wearable and corrosion resistant high temperature pump |
| CN204175602U (en) * | 2014-10-22 | 2015-02-25 | 江苏振华泵业制造有限公司 | High temperature distillation water-circulating pump |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106363413A (en) * | 2015-07-24 | 2017-02-01 | 杭州三花研究院有限公司 | Manufacture method for electronic pump |
| CN108518344A (en) * | 2018-03-28 | 2018-09-11 | 广东知识城运营服务有限公司 | A kind of efficient electric pumping unit |
| WO2020093109A1 (en) | 2018-11-08 | 2020-05-14 | Zip Industries (Aust) Pty Ltd | A pump assembly |
| CN114207289A (en) * | 2018-11-08 | 2022-03-18 | 吉普工业（澳大利亚）集团有限公司 | Pump assembly |
| CN112412820A (en) * | 2020-11-12 | 2021-02-26 | 昆山新莱洁净应用材料股份有限公司 | Sanitary-grade double-support high-pressure pump |
| CN112412819A (en) * | 2020-11-12 | 2021-02-26 | 昆山新莱洁净应用材料股份有限公司 | Sanitary-grade single-support high-pressure pump |
| CN113864246A (en) * | 2021-10-31 | 2021-12-31 | 浙江水泵总厂有限公司 | Bearing cooling structure and condensate pump with same |
| CN114001033A (en) * | 2021-10-31 | 2022-02-01 | 浙江水泵总厂有限公司 | Axial liquid inlet structure and multistage centrifugal pump with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 225500 No. 9, Jiangyan Avenue, Jiangyan Economic Development Zone, Taizhou, Jiangsu Applicant after: Jiangsu Zhenhua pump Limited by Share Ltd Address before: 225500 No. 9, Jiangyan Avenue, Jiangyan District, Jiangsu, Taizhou Applicant before: Jiangsu Zhenhua Pump Industry Manufacturing Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150204 |