CN202348682U - Slow-rotary-speed corrosion-resisting wear-resisting centrifugal pump - Google Patents
Slow-rotary-speed corrosion-resisting wear-resisting centrifugal pump Download PDFInfo
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- CN202348682U CN202348682U CN2011203991582U CN201120399158U CN202348682U CN 202348682 U CN202348682 U CN 202348682U CN 2011203991582 U CN2011203991582 U CN 2011203991582U CN 201120399158 U CN201120399158 U CN 201120399158U CN 202348682 U CN202348682 U CN 202348682U
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- pump
- centrifugal pump
- resisting
- rotate speed
- resistant
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Abstract
The utility model discloses a slow-rotary-speed corrosion-resisting wear-resisting centrifugal pump. A motor drives an impeller in a pump body to rotate, a hard seal assembly is arranged on a rotation shaft, and a fixed ring and a movable ring of the hard seal assembly achieve sealing through abutting contact of smooth contact surfaces. The motor is a quadrupole slow-rotary-speed motor. An outer casing of the pump body is composed of a jacket and a pump cover, and the jacket is wrapped outside a cavity of the pump body, small blades are arranged between main blades of the impeller. By means of the design combination of the structure, the slow-rotary-speed corrosion-resisting wear-resisting centrifugal pump thoroughly solves the problem that a conventional centrifugal pump can not adapt to specific working conditions of chemical industry. Main technical performance parameter scopes of pumps in the series are that flow is 10-50m<3>/h, lift is 20-60m, rotation speed is 1450 rings/minute, the service life is prolonged by 2-3 times compared with a common pump, the small-flow high-lift working condition of a medium with particles can be completely adapted, the performance is reliable, materials of the cavity of the pump body inside are easily replaced through the jacket structure, and using requirements of various materials can be flexibly met.
Description
Technical field
The utility model relates to the fluid pump field, especially low-rotate speed anticorrosive wear-resistant centrifugal pump.
Background technique
A lot of small flows, high-lift occasion are used conventional middle-size and small-size chemical pump in industries such as titanium pigment, flue gas desulfurization, sewage treatment; Be the high speed pump of supporting bipolar machine mostly; What sealing was adopted is conventional machinery sealing or oil sealing dynamic seal; Owing to impurity is arranged or a spot of crystal is arranged in these operating modes, easily these sealing configurations are produced wearing and tearing.Therefore, in these applying working conditions, the using effect of conventional centrifugal pump is very undesirable, and ubiquity the weak point in working life, sealed unfavorable problem.
The model utility content
The applicant can not use in specific Chemical Manufacture operating mode to above-mentioned existing conventional centrifugal pump preferably; There is the weak point in working life, seals shortcomings such as undesirable; A kind of low-rotate speed anticorrosive wear-resistant centrifugal pump rational in infrastructure is provided; Thereby can be suitable for specific operation, reduce wear, effectively prolong working life.
The technological scheme that the utility model adopted is following:
Impeller rotation in a kind of low-rotate speed anticorrosive wear-resistant centrifugal pump, the motor driving pump housing, running shaft is provided with hard seal combination, and the stationary ring of hard seal combination contacts through pushing against of smooth contact surface with rotating ring and realizes sealing.
It is further characterized in that: said motor adopts four utmost point low-rotate speed motors.
Pump housing shell is made up of chuck and pump cover, and it is outside that chuck is wrapped in pump housing inner chamber.
Said chuck is a cast iron quality, and said pump housing inner chamber is a non-metallic material.
Be provided with small leaf between the primary blades of said impeller.
Said stationary ring and rotating ring adopt silicon carbide material, and stationary ring utilizes spring to push against on the surface of contact of rotating ring.
The beneficial effect of the utility model is following:
Through above structure Design combination; The utility model has thoroughly solved the difficult problem that conventional centrifugal pump can not be applicable to specific chemical industry operating mode, and the main technical parameters scope of this series pump is: flow 10～50m3/h, lift 20～60m; 1450 rev/mins of rotating speeds; Improve 2～3 times than conventional pump working life, can adapt to the small flow that granule medium is arranged, high-lift operating mode fully, reliable performance; The jacket structured material that is easy to change the internal pump intracoelomic cavity is to satisfy the usage requirement of various materials flexibly.
Description of drawings
Fig. 1 is the plan view of the utility model, broken section.
Fig. 2 is the right elevation of Fig. 1.
Fig. 3 is the jacket structured sectional view of the utility model.
Fig. 4 is the plan view of the impeller of the utility model.
Fig. 5 is for cuing open figure among Fig. 4.
Fig. 6 is the sectional view of the hard seal combination of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the utility model is described.
As shown in Figure 1; The pump housing and the motor 2 of the described low-rotate speed anticorrosive wear-resistant of the utility model centrifugal pump are installed on the base 1; The output shaft of motor 2 rotates through the impeller 10 that jaw coupling 3, suspension-type bearing support 4 drive in the centrifugal pump body; With the acceleration of the liquid of fluid inlet 11 input, pump from fluid output 9 through impeller 10.
The motor 2 of the utility model adopts four utmost point low-rotate speed motors, has greatly reduced wearing and tearing at a high speed, has improved the wear-out life of flow passage components.
Like Fig. 2, shown in Figure 3; The pump housing of the utility model adopts novel jacket type structure; The shell of the pump housing is the chuck 8 of cast iron quality, is wrapped in the outside of the nonmetal pump intracoelomic cavity 7 of plastics or pottery, and utilizes fastening piece to realize being connected with the pump cover 6 of plastic lining layer.In this jacket type structure; Pump housing inner chamber 7 can be selected various materials flexibly according to different operating modes; The mode of structure of changed that the existing pump housing is overall plastic, pottery is moulded, served as a contrast to all steel, lining only needs to change pump housing inner chamber 7 separately in that the wearing and tearing back takes place, and need not to change chuck 8; Thereby effectively practiced thrift cost, also widened the application of pump.
Like Fig. 4, shown in Figure 5, the utility model has changed the design of impeller according to the performance requirement of the small flow of this pump, high-lift, low-rotate speed; Increased the diameter of impeller on the one hand, between conventional primary blades 12, increased additional small leaf 13 simultaneously, thereby be adapted to this kind small inlet, large diameter impeller; The increase of small leaf neither can be crowded the blade arrangement; Guarantee the diffusion ratio of runner, but also can suitably increase vane thickness, thereby improved the wear resistance of impeller.
In order to overcome the specific application environment problem that causes seal failure easy to wear; The utility model adopts collection dress sealed mode as shown in Figure 6 firmly to hard mechanical seal combination on main shaft, and the stationary ring 14 of hard seal combination 5 adopts hard materials such as silicon carbide, both smooth contact surface 15 contacts after polishing with rotating ring 16; Stationary ring 14 utilizes spring 18 to push against and realizes sealing simultaneously; Sealing is a kind of balanced mechanical seal, and when fluid pressure in the pump chamber changed, it can regulate the specific pressure of dynamic and static ring sealing face automatically; Thereby alleviate the wearing and tearing of dynamic and static ring sealing face, life-saving.The utility model dependence adds cooling water hard sealing is cooled off, and through two turnover water nozzles 17 that become 90 ° of V-arrangements to arrange up, is full of water in the Seal cage and keeps flowing of water as long as guarantee; And that cooling water pressure does not need is too high, and when main axis rotation, cooling water is because centrifugal action; Get rid of sealing surface to dynamic and static ring; Not only can implement cooling, and the aggressive medium that can block in the pump chamber leaks, thereby realize reliable sealing dynamic and static ring.And common machine envelope of the prior art is to lean on working medium coolant seal face, thereby can throw away acid mist, corrosion pump machine and befouling environment; Common oil sealing cannot stand the damage of granule medium; And the seal combination of this pump has fundamentally solved these difficult problems, not only is fit to have the operating mode of granule medium, and is suitable equally for other operating modes; Owing to have outstanding sealability, be more than three times of conventional seals life-span the sealing life of the hard seal combination 5 of the utility model.
More than describing is the explanation to the utility model, is not the qualification to model utility, and the utility model institute restricted portion is referring to claim, and under the situation of the utility model spirit, the utility model can be done any type of modification.
Claims (6)
1. low-rotate speed anticorrosive wear-resistant centrifugal pump; Motor (2) drives impeller (10) rotation in the pump housing; It is characterized in that: running shaft is provided with hard seal combination (5), and the stationary ring (14) of hard seal combination (5) contacts through pushing against of smooth contact surface (15) with rotating ring (16) and realizes sealing.
2. according to the described low-rotate speed anticorrosive wear-resistant of claim 1 centrifugal pump, it is characterized in that: said motor (2) adopts four utmost point low-rotate speed motors.
3. according to the described low-rotate speed anticorrosive wear-resistant of claim 1 centrifugal pump, it is characterized in that: pump housing shell is made up of chuck (8) and pump cover (6), and chuck (8) is wrapped in pump housing inner chamber (7) outside.
4. according to the described low-rotate speed anticorrosive wear-resistant of claim 3 centrifugal pump, it is characterized in that: said chuck (8) is a cast iron quality, and said pump housing inner chamber (7) is a non-metallic material.
5. according to the described low-rotate speed anticorrosive wear-resistant of claim 1 centrifugal pump, it is characterized in that: be provided with small leaf (13) between the primary blades (12) of said impeller (10).
6. according to the described low-rotate speed anticorrosive wear-resistant of claim 1 centrifugal pump, it is characterized in that: said stationary ring (14) adopts silicon carbide material with rotating ring (16), and stationary ring (14) utilizes spring (18) to push against on the surface of contact of rotating ring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203991582U CN202348682U (en) | 2011-10-19 | 2011-10-19 | Slow-rotary-speed corrosion-resisting wear-resisting centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203991582U CN202348682U (en) | 2011-10-19 | 2011-10-19 | Slow-rotary-speed corrosion-resisting wear-resisting centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348682U true CN202348682U (en) | 2012-07-25 |
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ID=46537690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203991582U Expired - Lifetime CN202348682U (en) | 2011-10-19 | 2011-10-19 | Slow-rotary-speed corrosion-resisting wear-resisting centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348682U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954039A (en) * | 2012-12-27 | 2013-03-06 | 宜兴市灵谷塑料设备有限公司 | Centrifugal pump of liner of sealed anti-cracking silicon carbide ceramic |
| CN105065288A (en) * | 2015-09-08 | 2015-11-18 | 湘潭大学 | Small-sized water pumping device using flowing water kinetic energy |
-
2011
- 2011-10-19 CN CN2011203991582U patent/CN202348682U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954039A (en) * | 2012-12-27 | 2013-03-06 | 宜兴市灵谷塑料设备有限公司 | Centrifugal pump of liner of sealed anti-cracking silicon carbide ceramic |
| CN105065288A (en) * | 2015-09-08 | 2015-11-18 | 湘潭大学 | Small-sized water pumping device using flowing water kinetic energy |
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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: 20120725 |
|
| CX01 | Expiry of patent term |