CN201068864Y - Linked centrifugal sealing self control self priming pump - Google Patents
Linked centrifugal sealing self control self priming pump Download PDFInfo
- Publication number
- CN201068864Y CN201068864Y CNU2007200254376U CN200720025437U CN201068864Y CN 201068864 Y CN201068864 Y CN 201068864Y CN U2007200254376 U CNU2007200254376 U CN U2007200254376U CN 200720025437 U CN200720025437 U CN 200720025437U CN 201068864 Y CN201068864 Y CN 201068864Y
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- pump
- impeller
- interlock
- automatic control
- control self
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Abstract
The utility model relates to a linkage centrifugal and sealing self-control self-suction pump; wherein, the pump body consists of a lower pump body(9) and an upper pump body (15) arranged above the lower pump body(9). An assistant impeller (13) and a second-level closed impeller (8) which are sleeved on a pump shaft (4) are respectively positioned on the upper end and the lower end of the cavity of the upper pump body (15). A first-level open impeller is arranged on the lower end of the pump shaft (4). The utility model has the advantages of high-temperature resistance, wear resistance and (once liquid irrigation, life-long self-absorption). The utility model can be applied to oil, electricity, chemical industry, metallurgy, medicine, food, electroplating, fire control, mining, construction and other industries for transporting medium containing particles and crystalline medium.
Description
Technical field
The utility model relates to a kind of centrifugal pump, particularly a kind of interlock centrifugal seal automatic control self-priming pump.
Background technique
Existingly be used to carry the centrifugal pump structure of liquid medium varied, their common defects is mainly reflected in the following aspects:
When the first, motor quit work, the liquid in the pump housing was sucked away by conveyance conduit under the effect of siphon power, and each startup all needs to irritate in advance liquid, operates more loaded down with trivial details.
The second, usually need mechanical seal, packing_seal or packing seal.Increased the wearing and tearing of pump on the one hand, influenced the working life of pump, this point was more obvious when particularly conveying contained particle solid medium; Need often to change sealing material on the other hand, not only influence manufacturing efficiency, and increased the equipment user cost.
Three, the coupling that being used to of being adopted connects pump shaft and motor shaft adopts jackscrew to fix, and easily gets rusty under long-time, the corrosive environment, and is not quick detachable.
Four, the both stage impellers series aiding connection is installed on the pump shaft, and the pump shaft axially loaded is bigger, and motor bearings and coupling load are heavier, are easy to impaired destruction.
Five, the pump housing generally adopts integrative-structure, and difficulty of processing is big; And the discharge port position can not adjust, and increased the difficulty of pipeline turn-around design, layout.
Model utility content the purpose of this utility model is to provide a kind of interlock centrifugal seal automatic control self-priming pump, and technical problem to be solved comprises: (1), realization dynamic seal; (2), overcome " siphonage "; (3), alleviate the pump shaft axial load; (4), realize the discharge port adjustable positions; (5), coupling is easy to dismounting.
In order to solve the problems of the technologies described above, the utility model has adopted following technological scheme.
A kind of interlock centrifugal seal automatic control self-priming pump comprises the pump shaft that is arranged in the pump housing, and the pump shaft upper end is connected with motor by coupling, it is characterized in that: the described pump housing is made up of lower pump body and the upper pump casing that is installed in the lower pump body top; Be communicated with by the medium inlet between upper pump casing and the lower pump body; Lower pump body has the import bend pipe, is provided with drain pipe in a side of upper pump casing; Be sleeved on the top and bottom that sub-propeller on the pump shaft and secondary seal impeller lay respectively at the cavity of upper pump casing; The pump shaft lower end is equipped with the one-level unshrouded impeller by thread connecting mode.
Place, medium inlet at the import bend pipe is equipped with air shut-off valve, and this air shut-off valve is connected with motor by lead.
The one-level unshrouded impeller is anchored on the pump shaft underpart by positioning screwn.
Coupling is the opposite opened coupling.
In the pump shaft upper end fan is installed also, its wind direction is towards motor drive direction.
One-level unshrouded impeller leaf finned surface is downward; Accessory lobes wheel blade finned surface upwards; Secondary seal impeller leaf finned surface upwards.
The specific speed of secondary seal impeller: 150≤ns≤300.
The media outlet place of drain pipe is equipped with one-way valve.
Good effect of the present utility model is:
(1), the centrifugal force that relies on sub-propeller to produce realizes sealing, replaced original sealing means, thoroughly solved " run, drip, leak " problem.Because axial play sealed department position does not have wearing and tearing in the running, therefore needn't frequently change sealing, guaranteed the continuous operation of equipment, prolong working life significantly.
(2), adopt air shut-off valve and motor synchronous interlock mode, mend air to the place, medium inlet during the motor stall, thoroughly solved the problem that " siphonage " brings, realized " once irritating liquid, all the life self-priming ".
(3), utilized the Nash hytor principle, self-priming time shortens to 3-10 second.
(4), drawn the operational advantages of double suction type centrifugal pump impeller, with the back-to-back installation of I and II impeller, the axial force that makes pump shaft bear obtains balance preferably, has protected motor bearings first.
(5), press the applying working condition difference, impeller can be selected full-open type, semi-open type, enclosed respectively for use.Self-priming pump of the present utility model is applicable to that the liquid kinematic viscosity is not more than 1000mm
2/ s, air content is not more than 6%, and the liquid medium that is not more than 12mm by the particulate matter size is carried.
(6), coupling adopts and to split rigid connection, all expose nut all is the head type structure, convenient disassembly is easy to Installation and Debugging, does not need lower margin to fix.
(7), because pump shaft is axially consistent with gravitational direction, and axial force balance, so vibrate for a short time, noise is low.
(8), be vertical structure, floor space is less.
(9), the impeller parameters design is suitable for containing solid particles thing medium transport.
(10), the one-level unshrouded impeller is anchored on the pump shaft, this impeller can not become flexible yet, come off when the counter-rotating of misoperation pump shaft occurring by positioning screwn and locking and positioning pad.
(11), owing to taked cooling method, the heatproof value is brought up to about 200 ℃ by original 78-80 ℃.
(12), by rotating upper pump casing, can change the discharge port direction, be convenient to install, use.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the utility model comprises the lower pump body 9 that has import bend pipe 12, is installed in the upper pump casing 15 of lower pump body 9 tops, is communicated with by the medium inlet between upper pump casing 15 and the lower pump body 9.By motor cabinet 2 motor 1 is installed above upper pump casing 15, pump shaft 4 upper ends are in transmission connection by opposite opened coupling 3 and motor shaft.In pump shaft 4 upper ends fan 20 is installed also, its wind direction is implemented the blowing cooling towards motor 1 direction to motor bearings.
Pump shaft 4 first halves are positioned at the cavity of upper pump casing 15, are sleeved on the top and bottom that sub-propeller 13 on the pump shaft 4 and secondary seal impeller 8 lay respectively at the cavity of upper pump casing 15.Wherein, sub-propeller 13 is fixed on the pump shaft 4 by locking nut 5, and the leaf finned surface upwards.Secondary seal impeller 8 is fixed on the pump shaft 4 by tightening nut 16, and the leaf finned surface makes progress, and specific speed (ns) is between 150-300.Supporting positive cover 10 is by being bolted on the upper pump casing 15, and the axle bush 17 that is installed in the supporting positive cover 10 plays the effect that limits pump shaft 4 radial displacements.
Pump shaft 4 Lower Halves are deep in the cavity of lower pump body 9, in pump shaft 4 lower ends, by thread connecting mode one-level unshrouded impeller 11 are installed, and by positioning screwn 19 and locking and positioning pad 18 one-level unshrouded impeller 11 are anchored on pump shaft 4 underparts.These one-level unshrouded impeller 11 leaf finned surfaces are downward.
Place, medium inlet at import bend pipe 12 is equipped with air shut-off valve 14, and this air shut-off valve 14 is connected with motor 1 by lead.Air shut-off valve 14 is in normally off when motor 1 running, and air shut-off valve 14 is often opened when motor 1 stall.
The drain pipe 7 that has media outlet is arranged on a side of upper pump casing 15, at this media outlet place one-way valve 6 is installed.
During motor 1 work, drive sub-propeller 13, secondary seal impeller 8 and one-level unshrouded impeller 11 by pump shaft 4 and rotate synchronously.One-level unshrouded impeller 11 is pumped into medium in the cavity of lower pump body 9 from import bend pipe 12.Secondary seal impeller 8 is pumped into medium in the cavity of upper pump casing 15 from the medium inlet between upper pump casing 15 and the lower pump body 9.Sub-propeller 13 and 8 interlocks of secondary seal impeller are pumped the cavity of medium from upper pump casing 15 through drain pipe 7.
Claims (8)
1. interlock centrifugal seal automatic control self-priming pump, comprise the pump shaft (4) that is arranged in the pump housing, pump shaft (4) upper end is connected with motor (1) by coupling (3), it is characterized in that: the described pump housing is made up of lower pump body (9) and the upper pump casing (15) that is installed in above the lower pump body (9); Be communicated with by the medium inlet between upper pump casing (15) and the lower pump body (9); Lower pump body (9) has import bend pipe (12), is provided with drain pipe (7) in a side of upper pump casing (15); Be sleeved on the top and bottom that sub-propeller (13) on the pump shaft (4) and secondary seal impeller (8) lay respectively at the cavity of upper pump casing (15); Pump shaft (4) lower end is equipped with one-level unshrouded impeller (11) by thread connecting mode.
2. interlock centrifugal seal automatic control self-priming pump as claimed in claim 1 is characterized in that: the place, medium inlet at import bend pipe (12) is equipped with air shut-off valve (14), and this air shut-off valve (14) is connected with motor (1) by lead.
3. interlock centrifugal seal automatic control self-priming pump as claimed in claim 1 is characterized in that: one-level unshrouded impeller (11) is anchored on pump shaft (4) underpart by positioning screwn (19).
4. interlock centrifugal seal automatic control self-priming pump as claimed in claim 1 is characterized in that: coupling (3) is the opposite opened coupling.
5. interlock centrifugal seal automatic control self-priming pump as claimed in claim 1 is characterized in that: in pump shaft (4) upper end fan (20) is installed also, its wind direction is towards motor (1) direction.
6. interlock centrifugal seal automatic control self-priming pump as claimed in claim 1, it is characterized in that: one-level unshrouded impeller (11) leaf finned surface is downward; Sub-propeller (13) leaf finned surface upwards; Secondary seal impeller (8) leaf finned surface upwards.
7. interlock centrifugal seal automatic control self-priming pump as claimed in claim 1 is characterized in that: the specific speed of secondary seal impeller (8): 150≤ns≤300.
8. interlock centrifugal seal automatic control self-priming pump as claimed in claim 1, it is characterized in that: the media outlet place of drain pipe (7) is equipped with one-way valve (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200254376U CN201068864Y (en) | 2007-07-20 | 2007-07-20 | Linked centrifugal sealing self control self priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200254376U CN201068864Y (en) | 2007-07-20 | 2007-07-20 | Linked centrifugal sealing self control self priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201068864Y true CN201068864Y (en) | 2008-06-04 |
Family
ID=39490248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200254376U Expired - Fee Related CN201068864Y (en) | 2007-07-20 | 2007-07-20 | Linked centrifugal sealing self control self priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201068864Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527494A (en) * | 2013-09-30 | 2014-01-22 | 合肥工业大学 | Self-absorption device for centrifugal pump |
| CN105526176A (en) * | 2015-12-21 | 2016-04-27 | 安徽南方化工泵业有限公司 | Blockage prevention type second-grade self-priming pump |
| CN107701462A (en) * | 2017-10-18 | 2018-02-16 | 珠海格力电器股份有限公司 | A kind of pump |
| CN110685929A (en) * | 2019-11-14 | 2020-01-14 | 合肥恒大江海泵业股份有限公司 | Mining submersible electric pump |
-
2007
- 2007-07-20 CN CNU2007200254376U patent/CN201068864Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527494A (en) * | 2013-09-30 | 2014-01-22 | 合肥工业大学 | Self-absorption device for centrifugal pump |
| CN103527494B (en) * | 2013-09-30 | 2015-12-23 | 合肥工业大学 | A kind of self-priming apparatus for centrifugal pump |
| CN105526176A (en) * | 2015-12-21 | 2016-04-27 | 安徽南方化工泵业有限公司 | Blockage prevention type second-grade self-priming pump |
| CN107701462A (en) * | 2017-10-18 | 2018-02-16 | 珠海格力电器股份有限公司 | A kind of pump |
| CN107701462B (en) * | 2017-10-18 | 2023-08-18 | 珠海格力电器股份有限公司 | Pump with a pump body |
| CN110685929A (en) * | 2019-11-14 | 2020-01-14 | 合肥恒大江海泵业股份有限公司 | Mining submersible electric pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: YANTAI GENERAL MACHINERY EQUIPMENT MANUFACTURE CO. Free format text: FORMER NAME: YANTAI GENERAL ANTICORROSION PUMP CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 264100 No. 929 Xincheng street, Muping District, Shandong, Yantai Patentee after: YANTAI TONGYONG MACHINERY EQUIPMENT MANUFACTURING CO., LTD. Address before: 264100, Yantai District, Shandong City, Muping Metro Avenue West head Patentee before: Yantai General Anticorrosion Pump Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20120720 |