CN103867454A - Vacuum self-priming pump - Google Patents
Vacuum self-priming pump Download PDFInfo
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- CN103867454A CN103867454A CN201410036456.3A CN201410036456A CN103867454A CN 103867454 A CN103867454 A CN 103867454A CN 201410036456 A CN201410036456 A CN 201410036456A CN 103867454 A CN103867454 A CN 103867454A
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- pump
- impeller
- seal cage
- vacuum self
- self priming
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Abstract
The invention discloses a vacuum self-priming pump which comprises a pump body, a combined rotor and a power assembly, wherein the power assembly is connected with the combined rotor; the combined rotor is arranged in the pump body; the pump body is connected with a pump cover; the pump body is internally provided with a first sealing cavity, a second sealing cavity and a third sealing cavity, wherein the first sealing cavity is connected with a liquid inlet; the second sealing cavity is connected with a liquid outlet; the first sealing cavity and the second sealing cavity are approximately identical in shape and size; the third sealing cavity is C-shaped. According to the vacuum self-priming pump disclosed by the invention, the pump body is internally provided with a plurality of sealing cavities, thus the vacuum degree can be produced fast to suck materials in; the vacuum self-priming pump is strong in sucking force and large in lift; no material is detained in a container; in addition, the vacuum self-priming pump is simple and convenient to mount, easy to maintain and long in service life. Besides, a sealing cavity is formed in the pump cover to form double flow passages; gaps between the pump body and an impeller as well as between the impeller and the pump cover and material selection are controlled, and the sucking force and lift are increased, and the friction of heat expansion is avoided.
Description
Technical field
The present invention relates to a kind of pump, relate in particular to a kind of vacuum self priming pump.
Background technique
Self-priming pump is a kind ofly, the gas in pipe to be drained by the High Rotation Speed of impeller through short-time running starting the inlet ductwork of front pump without filling water, and liquid is entered in pump, completes self-priming process.
Exist on the market multiple self-priming pump, self-priming centrifugal pump is accepted extensively by people with its portability and stability in recent years.But because the design of itself is not comprehensive, materials as not good in sealability or flow passage components are not good etc., cause its suction capacity to have narrow limitation, lift is little, can not be by material suction in container completely, and self-priming starts slow, so most centrifugal or axial flow self-priming pump all cannot aspirate the liquid that viscosity is large.On market, also have the Under Water Pumps that another kind of lift is large and self-suction is strong, but owing to existing volume large, the high deficiency of Heavy Weight or price, is not also widely used simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of vacuum self priming pump, can produce fast degree of vacuum and suck material, and suction is strong, lift is large, in container without being detained material, and simple installation, easy care, long service life, can be widely used in acidproof, alkaline-resisting chemical industry.
The present invention is that to solve the problems of the technologies described above the technological scheme adopting be a kind of vacuum self priming pump, comprise the pump housing, combined rotor and Power Component, described Power Component is connected with combined rotor, described combined rotor is arranged in the pump housing, the described pump housing is connected with pump cover, wherein, in the described pump housing, be formed with the first Seal cage, the second Seal cage and the 3rd Seal cage, described the first Seal cage is connected with liquid entering hole, described the second Seal cage is connected with liquid outlet, the shape size of described the first Seal cage and the second Seal cage is roughly the same, and described the 3rd Seal cage is C shape.
Above-mentioned vacuum self priming pump, wherein, described Power Component comprises motor, motor shaft and motor rack, described motor is arranged on motor rack by motor shaft.
Above-mentioned vacuum self priming pump, wherein, described pump cover is single channel pump cover or double flow channel pump cover, between the described pump housing and pump cover, is provided with seal ring.
Above-mentioned vacuum self priming pump, wherein, described pump cover is double flow channel pump cover, and described pump cover is provided with a central shaft hole and the 4th Seal cage, and the shape size of described the 4th Seal cage and the 3rd Seal cage is roughly the same.
Above-mentioned vacuum self priming pump, wherein, described combined rotor comprises impeller, impeller shaft and impeller nut, and described impeller nut is fixed on described impeller shaft one end, and the described impeller shaft the other end is fixedly connected with described motor shaft through described central shaft hole.
Above-mentioned vacuum self priming pump, Qi Zhongyu, described the first Seal cage and the second Seal cage are symmetrical and be positioned at the 3rd Seal cage along impeller shaft.
Above-mentioned vacuum self priming pump, wherein, described impeller shaft outside is provided with mechanical sealing element, and described mechanical sealing element peripheral hardware has mechanical seal cover.
Above-mentioned vacuum self priming pump, wherein, the material of described impeller is engineering ceramics, and the material of the described pump housing and pump cover is engineering plastics or fluoroplastic, distance between the described pump housing and impeller is 0.1～0.25mm, and the distance between described impeller and pump cover is 0.1～0.25mm.
Above-mentioned vacuum self priming pump, wherein, the material of described impeller, the pump housing and pump cover is stainless steel or alloyed steel, and the distance between the described pump housing and impeller is 0.1-0.25mm, and the distance between described impeller and pump cover is 0.1～0.25mm.
Above-mentioned vacuum self priming pump, wherein, described liquid entering hole is provided with one-way valve.
The present invention contrasts prior art following beneficial effect: a kind of vacuum self priming pump provided by the invention, by form multiple Seal cages in the pump housing, thereby can produce fast degree of vacuum and suck material, suction is strong, lift is large, in container without being detained material, and simple installation, easy care, long service life.In addition, the present invention forms double flow channel by Seal cage is set on pump cover, suction and lift are improved in the gap of controlling between the pump housing and impeller, impeller and pump cover, and the selection flow passage components material of science, ensure can not produce because of thermal expansion collision between impeller and the pump housing, pump cover, can be widely used in acidproof, alkaline-resisting chemical industry.
Brief description of the drawings
Fig. 1 is the structural representation of vacuum self priming pump of the present invention;
Fig. 2 is the pump body structure schematic diagram in the embodiment of the present invention;
Fig. 3 is double flow channel pump cover structural representation in the embodiment of the present invention.
In figure:
1 pump housing 2 combined rotor 3 Power Components
4 liquid entering hole 5 liquid outlet 6 pump covers
7 mechanical sealing element 8 mechanical seal covers
101 first Seal cage 102 second Seal cage 103 the 3rd Seal cages
201 impeller 202 impeller shaft 203 impeller nuts
301 motor 302 motor shaft 303 motor racks
601 central shaft holes 602 the 4th Seal cage.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the structural representation of vacuum self priming pump of the present invention; Fig. 2 is the pump body structure schematic diagram in the embodiment of the present invention.
Refer to Fig. 1 and Fig. 2, vacuum self priming pump provided by the invention, comprise the pump housing 1, combined rotor 2 and Power Component 3, Power Component 3 is connected with combined rotor 2, combined rotor 2 is arranged in the pump housing 1, wherein, in the pump housing 1, be formed with the first Seal cage 101, the second Seal cage 102 and the 3rd Seal cage 103, the first Seal cage 101 is connected with liquid entering hole 4, the second Seal cage 102 is connected with liquid outlet 5, vacuum self priming pump also comprises pump cover 6, pump cover 6 is provided with a central shaft hole 601, pump cover 6 is connected 1 with the pump housing, the shape size of described the first Seal cage 101 and the second Seal cage 102 is roughly the same, described the 3rd Seal cage 103 is C shape.
Above-mentioned vacuum self priming pump, wherein, Power Component 3 comprises motor 301, motor shaft 302 and motor rack 303; Combined rotor 2 comprises impeller 201, impeller shaft 202 and impeller nut 203, and impeller nut 203 is fixed on impeller shaft 202 one end, and impeller shaft 203 the other ends are fixedly connected with motor shaft 302 through central shaft hole 601; Described the first Seal cage 101 and the second Seal cage 102 are preferably symmetrical along impeller shaft 202 and be positioned at the 3rd Seal cage 103.After motor 301 starts by the impeller shaft 202 being fixedly connected with motor shaft 302, kinetic energy is passed to impeller 201, thereby impeller 201 rotary works, the impeller 201 of rotation makes 4 moments of liquid entering hole form vacuum, material is sucked from liquid entering hole 4, by impeller 201, material is pressed into the 3rd sealed cavity 103 again, constantly pass to the pressure energy of medium through impeller 201 High Rotation Speeds, material compression in last the 3rd Seal cage 103 is to the second Seal cage 102 being connected with input channel, thus the object of realization suction material.
Vacuum self priming pump provided by the invention, the material of described impeller 201, the pump housing 1 and pump cover 6 can be stainless steel or alloyed steel, between the described pump housing 1 and pump cover 6, can be provided with seal ring, distance between the pump housing 1 and impeller 201 is preferably 0.1～0.25mm, distance between impeller and pump cover is preferably 0.1～0.25mm, the axial clearance of impeller 201 front and back and the pump housing 1 and pump cover 6 is less, and the degree of vacuum in pump chamber is higher, thereby produces stronger suction and larger lift.The suction lift of existing pump is generally 4-5 rice, adopts the suction lift of the double flow channel metal pump of the above-mentioned gap design of the present invention can reach 8.5 meters.But impeller 201 and the pump housing 1, pump cover 6 gaps are less, also easilier cause grazing because of thermal expansion.Particularly for nonmetal positive displacement vacuum self priming pump, as engineering plastics selecting, impeller 201 must be greater than the grazing that 0.1～0.25mm just can avoid thermal expansion to cause, thereby affect lift with the pump housing 1, pump cover 6 gaps.
The present invention also further provides a kind of nonmetal positive displacement vacuum self priming pump, the material of described impeller 201 is engineering ceramics, the material of the described pump housing 1 and pump cover 6 is engineering plastics or fluoroplastic, distance between the described pump housing 1 and impeller 201 is 0.1～0.25mm, distance between described impeller 201 and pump cover 6 is 0.1～0.25mm, engineering ceramics acid-fast alkali-proof, high temperature resistant, and thermal expansion coefficient is little, thereby can prevent that impeller distortion from causing the grazing pump housing 1 or pump cover 6, less gap has ensured stronger suction and larger lift.Above-mentioned nonmetal positive displacement double flow channel vacuum self priming pump provided by the invention, suction lift also can reach 8.5 meters.In addition, impeller shaft 202 outsides are provided with mechanical sealing element 7, and described mechanical sealing element 7 peripheral hardwares have mechanical seal cover 8, and this mechanical seal structure rotates together with impeller shaft 202, place leak of liquid.
Fig. 3 is double flow channel pump cover structural representation in the embodiment of the present invention.
Please continue referring to Fig. 3, vacuum self priming pump provided by the invention, on described pump cover 6, also can be provided with the 4th Seal cage 602, the size shape of the 4th Seal cage 602 the preferably with three Seal cage 103 is roughly the same, vacuum self priming pump provided by the invention, and the Seal cage volume on the flow of pump and the pump housing 1 has much relations, in order to promote the suction of vacuum self priming pump, on pump cover 6, increase the 4th Seal cage 602 and formed double flow channel, the flow of pump has been doubled, thereby promoted pump performance.
Therefore, vacuum self priming pump provided by the invention, forms double flow channel pump cover by increase by the 4th Seal cage 602 on pump cover 6, controls the distance between the pump housing 1 and impeller 201, impeller 201 and pump cover 6, and the selection flow passage components material of science, thereby produce fast degree of vacuum and suck material, suction is strong, and lift is large, in container, nothing is detained material, and vacuum self priming pump simple installation, easy care, long service life is widely used in acidproof, alkaline-resisting chemical industry.
Although the present invention discloses as above with preferred embodiment; so it is not in order to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when doing a little amendment and perfect, therefore protection scope of the present invention is worked as with being as the criterion that claims were defined.
Claims (10)
1. a vacuum self priming pump, comprise the pump housing (1), combined rotor (2) and Power Component (3), described Power Component (3) is connected with combined rotor (2), described combined rotor (2) is arranged in the pump housing (1), the described pump housing (1) is connected with pump cover (6), it is characterized in that, in the described pump housing (1), be formed with the first Seal cage (101), the second Seal cage (102) and the 3rd Seal cage (103), described the first Seal cage (101) is connected with liquid entering hole (4), described the second Seal cage (102) is connected with liquid outlet (5), the shape size of described the first Seal cage (101) and the second Seal cage (102) is roughly the same, described the 3rd Seal cage (103) is C shape.
2. vacuum self priming pump as claimed in claim 1, is characterized in that, described Power Component (3) comprises motor (301), motor shaft (302) and motor rack (303), and described motor (301) is arranged on motor rack (303) by motor shaft (302).
3. vacuum self priming pump as claimed in claim 1, is characterized in that, described pump cover (6) is single channel pump cover or double flow channel pump cover, between the described pump housing (1) and pump cover (6), is provided with seal ring.
4. vacuum self priming pump as claimed in claim 3, it is characterized in that, described pump cover (6) is double flow channel pump cover, described pump cover (6) is provided with a central shaft hole (601) and the 4th Seal cage (602), and the shape size of described the 4th Seal cage (602) and the 3rd Seal cage (103) is roughly the same.
5. vacuum self priming pump as claimed in claim 4, it is characterized in that, described combined rotor (2) comprises impeller (201), impeller shaft (202) and impeller nut (203), described impeller nut (203) is fixed on described impeller shaft (202) one end, and described impeller shaft (203) the other end is fixedly connected with described motor shaft (302) through described central shaft hole (601).
6. vacuum self priming pump as claimed in claim 5, is characterized in that, described the first Seal cage (101) and the second Seal cage (102) are symmetrical and be positioned at the 3rd Seal cage (103) along impeller shaft (202).
7. vacuum self priming pump as claimed in claim 5, is characterized in that, described impeller shaft (202) outside is provided with mechanical sealing element (7), and described mechanical sealing element (7) peripheral hardware has mechanical seal cover (8).
8. vacuum self priming pump as claimed in claim 5, it is characterized in that, the material of described impeller (201) is engineering ceramics, the material of the described pump housing (1) and pump cover (6) is engineering plastics or fluoroplastic, distance between the described pump housing (1) and impeller (201) is 0.1～0.25mm, and the distance between described impeller (201) and pump cover (6) is 0.1～0.25mm.
9. vacuum self priming pump as claimed in claim 5, it is characterized in that, the material of described impeller (201), the pump housing (1) and pump cover (6) is stainless steel or alloyed steel, distance between the described pump housing (1) and impeller (201) is 0.1～0.25mm, and the distance between described impeller (201) and pump cover (6) is 0.1～0.25mm.
10. the vacuum self priming pump as described in claim 1～9 any one, is characterized in that, described liquid entering hole (4) is provided with one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036456.3A CN103867454A (en) | 2014-01-26 | 2014-01-26 | Vacuum self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036456.3A CN103867454A (en) | 2014-01-26 | 2014-01-26 | Vacuum self-priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103867454A true CN103867454A (en) | 2014-06-18 |
Family
ID=50906351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410036456.3A Pending CN103867454A (en) | 2014-01-26 | 2014-01-26 | Vacuum self-priming pump |
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| Country | Link |
|---|---|
| CN (1) | CN103867454A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4111597A (en) * | 1976-01-10 | 1978-09-05 | Worthington Pump, Inc. | Centrifugal pump with centripetal inducer |
| CN2057237U (en) * | 1989-11-24 | 1990-05-16 | 南京航空学院 | Household miniature motor-operated water pump |
| CN2207462Y (en) * | 1994-08-25 | 1995-09-13 | 江苏省宜兴陶瓷公司非金属化工机械厂 | Improved centrifugal pump |
| KR20010010704A (en) * | 1999-07-22 | 2001-02-15 | 김찬원 | Vacuum self- priming pump |
| JP2010285972A (en) * | 2009-06-15 | 2010-12-24 | Rinnai Corp | Self-priming pump |
| CN203335420U (en) * | 2013-05-14 | 2013-12-11 | 绍兴蓝德磁力科技有限公司 | Small-flow high-lift magnetic transmission peripheral pump |
| CN203770146U (en) * | 2014-01-26 | 2014-08-13 | 上海德耐泵业有限公司 | Vacuum self-sucking pump |
-
2014
- 2014-01-26 CN CN201410036456.3A patent/CN103867454A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4111597A (en) * | 1976-01-10 | 1978-09-05 | Worthington Pump, Inc. | Centrifugal pump with centripetal inducer |
| CN2057237U (en) * | 1989-11-24 | 1990-05-16 | 南京航空学院 | Household miniature motor-operated water pump |
| CN2207462Y (en) * | 1994-08-25 | 1995-09-13 | 江苏省宜兴陶瓷公司非金属化工机械厂 | Improved centrifugal pump |
| KR20010010704A (en) * | 1999-07-22 | 2001-02-15 | 김찬원 | Vacuum self- priming pump |
| JP2010285972A (en) * | 2009-06-15 | 2010-12-24 | Rinnai Corp | Self-priming pump |
| CN203335420U (en) * | 2013-05-14 | 2013-12-11 | 绍兴蓝德磁力科技有限公司 | Small-flow high-lift magnetic transmission peripheral pump |
| CN203770146U (en) * | 2014-01-26 | 2014-08-13 | 上海德耐泵业有限公司 | Vacuum self-sucking pump |
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Application publication date: 20140618 |
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| WD01 | Invention patent application deemed withdrawn after publication |