CN109578319A - Suitable for conveying the miniature dynamic sealing circulation pump of the medium containing granule foreign - Google Patents
Suitable for conveying the miniature dynamic sealing circulation pump of the medium containing granule foreign Download PDFInfo
- Publication number
- CN109578319A CN109578319A CN201710897847.8A CN201710897847A CN109578319A CN 109578319 A CN109578319 A CN 109578319A CN 201710897847 A CN201710897847 A CN 201710897847A CN 109578319 A CN109578319 A CN 109578319A
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- conveying
- shaft
- medium containing
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 24
- 239000008187 granular material Substances 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 6
- 239000004519 grease Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 238000002955 isolation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- 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
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
- F04D29/044—Arrangements for joining or assembling shafts
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/049—Roller bearings
-
- 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
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
-
- 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
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The miniature dynamic sealing circulation pump that the present invention relates to a kind of suitable for conveying the medium containing granule foreign, including water conservancy overcurrent unit, driving unit and dynamic seal component, water conservancy overcurrent unit includes the pump housing, impeller, pump cover and pump shaft, pump chamber is formed between the pump housing and pump cover, impeller is located in pump chamber and is connected on pump shaft, pump shaft passes through pump cover and driving unit is sequentially connected, loading bearing is equipped between pump shaft and pump cover, dynamic seal component includes the accessory impeller being mounted on pump shaft and between impeller and pump cover, the spiral pump ring that preceding door between impeller and accessory impeller is set and is arranged between pump shaft and pump cover.Compared with prior art, the present invention has many advantages, such as long service life, applied widely, easily operated use.
Description
Technical field
The present invention relates to a kind of circulation pumps, more particularly, to a kind of suitable for conveying the miniature of the medium containing granule foreign
Dynamic sealing circulation pump.
Background technique
Circulating pump sealing form in system or unit installation is divided into static seal and two kinds of dynamic sealing, involved by this patent
And the small power sealing circulating pump that can transport containing granule medium in seal form belong to one kind of dynamic sealing, and it is conventional dynamic
Sealing is the liquid film that is formed by rotating ring and stationary ring by medium and isolated from atmosphere, and when operation requires to be full of medium in pump, can not do fortune
Turn and the medium containing granule foreign can not be conveyed, damage probability is larger, and maintenance cost is higher.
Summary of the invention
Contain it is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind is suitable for conveying
The miniature dynamic sealing circulation pump of granule foreign medium.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of miniature dynamic sealing circulation pump suitable for conveying the medium containing granule foreign, including water conservancy overcurrent unit and
Driving unit, the water conservancy overcurrent unit includes the pump housing, impeller, pump cover and pump shaft, and pump chamber, leaf are formed between the pump housing and pump cover
Wheel is located in pump chamber and is connected on pump shaft, and pump shaft passes through pump cover and driving unit is sequentially connected, and sets between pump shaft and pump cover
There is loading bearing, which further includes dynamic seal component, and the dynamic seal component includes being mounted on pump shaft and being located at
Accessory impeller between impeller and pump cover, the preceding door being arranged between impeller and accessory impeller and it is arranged between pump shaft and pump cover
Spiral pump ring.
Preferably, side of the spiral pump ring towards driving unit is arranged in the loading bearing.
Preferably, the loading bearing is deep groove ball bearing.
Preferably, the deep groove ball bearing uses closed grease lubricating bearing.
Preferably, the spiral pump ring includes the external screw thread being arranged on pump shaft and is arranged in static on pump cover
Part, the external screw thread are rotated with pump shaft, and are cooperated with the inner surface of static element, for isolation medium and secondary gas at work
The contact of source protection chamber.
Preferably, the impeller is back vane structure impeller, the sealing pressure head that back blade and accessory impeller generate when work
The sum of be greater than the outlet pressure of the pump housing, make to pump intracorporal gas-liquid mixed area and be at the blade center of accessory impeller.
Preferably, the driving unit includes the middle frame being connected on pump cover and the motor that is connected between on frame,
The motor is sequentially connected by single-iris shaft coupling and pump shaft.
The present invention does work to pumped (conveying) medium by the pump housing and impeller, and medium and big is completely cut off by accessory impeller and spiral pump ring
The contact of gas, back vane structure impeller is used cooperatively with accessory impeller, in operational process, makes to be in accessory impeller wheel hub containing granule medium
To locate gas-liquid mixed area, cancels tradition machinery sealing, the spiral pump ring added at pump cover has completely cut off contact of the medium with bearing,
So that the present invention is lubricated without medium, the efficiency of magnetic drive pump is improved, it is therefore prevented that containing granule medium to deep groove ball bearing, list
The corrosion erosion damage of diaphragm coupling, motor.
Present invention utilizes closed grease lubricating bearings as loading bearing, and service free maintenance is not necessarily to cooling and lubricating, solution
The problem of certainly magnetic drive pump ceramic bearing needs forced feed lubrication.
The present invention seals the isolation to its medium and atmosphere by non-contact power, and will contain granule medium and be sealed in pair
At the gas-liquid two-phase of impeller, solves the friction loss of conventional seals.
The output shaft and pump shaft of motor of the invention are sequentially connected using single-iris shaft coupling, are allowed to generate between two axis and be deposited
Axial offset on one point, and biggish axial load and radial load will not be generated.
Compared with prior art, the invention has the following advantages:
(1) long service life: in addition to loading bearing, other component is all without contact, can idle running, the liquid that can break operation, can
Small flow operation, will not cause parts damages due to user's misoperation.Dynamic seal component material is wear-resisting stainless
Steel, long service life.
(2) use scope is wide: due to pump inner part without friction, without lubricating, medium is in impeller and accessory impeller in operation
Gas-liquid mixed area, therefore on the basis of ensuring to pump performance, it can transport harshness operating condition medium, be such as situated between containing granule medium, easily vaporization
Matter, high-temperature medium, cryogenic media etc..
(3) easily operated use: the present invention may be not only suitable for harsh operating condition, and without special operating requirements, easy to use.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of spiral pump ring of the invention.
In figure, 1 is the pump housing, and 2 be impeller, and 3 be preceding door, and 4 be accessory impeller, and 5 be pump cover, and 6 be spiral pump ring, and 7 be deep
Ditch ball bearing, 8 be pump shaft, and 9 be middle frame, and 10 be single-iris shaft coupling, and 11 be motor, and 12 be external screw thread.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
Suitable for conveying the miniature dynamic sealing circulation pump of the medium containing granule foreign, as shown in Figure 1, including water conservancy overcurrent
Unit, driving unit and dynamic seal component, water conservancy overcurrent unit include the pump housing 1, impeller 2, pump cover 5 and pump shaft 8, the pump housing 1 with
Pump chamber is formed between pump cover 5, impeller 2 is located in pump chamber and is connected on pump shaft 8, and pump shaft 8 passes through pump cover 5 and driving unit passes
Dynamic connection, is equipped with loading bearing between pump shaft 8 and pump cover 5, dynamic seal component includes being mounted on pump shaft 8 and being located at impeller 2
Accessory impeller 4 between pump cover 5, the preceding door 3 being arranged between impeller 2 and accessory impeller 4 and it is arranged in pump shaft 8 and pump cover 5
Between spiral pump ring 6.
The driving unit of the present embodiment includes the middle frame 9 being connected on pump cover 5 and the motor being connected between on frame 9
11, motor 11 is sequentially connected by single-iris shaft coupling 10 and pump shaft 8.
In the present embodiment, side of the spiral pump ring 6 towards driving unit is arranged in loading bearing.Loading bearing may be selected
Ground is deep groove ball bearing 7, and uses closed grease lubricating bearing.
As shown in Fig. 2, the spiral pump ring 6 of the present embodiment includes that the external screw thread 12 being arranged on pump shaft 8 and setting exist
Static element on pump cover 5, external screw thread 12 are rotated with pump shaft 8, and are cooperated with the inner surface of static element, are situated between for isolation at work
The contact of matter and secondary gas source protection chamber.Static element can be pump cover 5 itself, be also possible to and the separable component of pump cover.Outside
Screw thread is according to pump rotation direction design, and when pump rotates clockwise in terms of motor side, external screw thread is left-handed, and rotation counterclockwise is pumped in terms of motor side
When, external screw thread dextrorotation.
The impeller 2 of the present embodiment is back vane structure impeller, the sealing pressure head that back blade and accessory impeller 4 generate when work it
Outlet pressure with the pump housing 1 is greater than, is in the gas-liquid mixed area in the pump housing 1 at the blade center of accessory impeller 4.If back blade and
The sealing pressure head that accessory impeller 4 generates can not offset outlet pressure, can separately continue growing accessory impeller 4.Above-mentioned retouches embodiment
State is for ease of ordinary skill in the art to understand and use the invention.Person skilled in the art obviously may be used
Easily to make various modifications to these embodiments, and apply the general principles described here to other examples without
It is necessary to cross creative labor.Therefore, the present invention is not limited to the above embodiments, and those skilled in the art are according to the present invention to take off
Show, improvement and modification made without departing from the scope of the present invention all should be within protection scope of the present invention.
Claims (7)
1. a kind of miniature dynamic sealing circulation pump suitable for conveying the medium containing granule foreign, including water conservancy overcurrent unit and drive
Moving cell, the water conservancy overcurrent unit include the pump housing (1), impeller (2), pump cover (5) and pump shaft (8), the pump housing (1) and pump cover
(5) pump chamber is formed between, impeller (2) is located in pump chamber and is connected on pump shaft (8), and pump shaft (8) passes through pump cover (5) and driving
Unit transmission connection, is equipped with loading bearing, which is characterized in that the device further includes dynamic seal between pump shaft (8) and pump cover (5)
Component, the dynamic seal component include the accessory impeller being mounted on pump shaft (8) and between impeller (2) and pump cover (5)
(4), the preceding door (3) being arranged between impeller (2) and accessory impeller (4) and the spiral shell being arranged between pump shaft (8) and pump cover (5)
Rotation pumping ring (6).
2. the miniature dynamic sealing circulation pump according to claim 1 for being suitable for conveying the medium containing granule foreign, special
Sign is, the loading bearing setting is in spiral pump ring (6) towards the side of driving unit.
3. the miniature dynamic sealing circulation pump according to claim 1 or 2 for being suitable for conveying the medium containing granule foreign,
It is characterized in that, the loading bearing is deep groove ball bearing (7).
4. the miniature dynamic sealing circulation pump according to claim 3 for being suitable for conveying the medium containing granule foreign, special
Sign is that the deep groove ball bearing (7) uses closed grease lubricating bearing.
5. the miniature dynamic sealing circulation pump according to claim 1 for being suitable for conveying the medium containing granule foreign, special
Sign is that the spiral pump ring (6) includes setting in the external screw thread (12) on pump shaft (8) and is arranged on pump cover (5)
Static element, the external screw thread (12) with pump shaft (8) rotate, and with the inner surface of static element cooperate, at work every
The contact of exhausted medium and secondary gas source protection chamber.
6. the miniature dynamic sealing circulation pump according to claim 1 for being suitable for conveying the medium containing granule foreign, special
Sign is, the impeller (2) is back vane structure impeller, the sealing pressure head that back blade and accessory impeller (4) generate when work it
Outlet pressure with the pump housing (1) is greater than, is in the gas-liquid mixed area in the pump housing (1) at the blade center of accessory impeller (4).
7. the miniature dynamic sealing circulation pump according to claim 1 for being suitable for conveying the medium containing granule foreign, special
Sign is that the driving unit includes the middle frame (9) being connected on pump cover (5) and the motor being connected between on frame (9)
(11), the motor (11) is sequentially connected by single-iris shaft coupling (10) and pump shaft (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897847.8A CN109578319B (en) | 2017-09-28 | 2017-09-28 | Miniature dynamic seal circulating pump device suitable for conveying medium containing particles and impurities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897847.8A CN109578319B (en) | 2017-09-28 | 2017-09-28 | Miniature dynamic seal circulating pump device suitable for conveying medium containing particles and impurities |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109578319A true CN109578319A (en) | 2019-04-05 |
| CN109578319B CN109578319B (en) | 2024-07-02 |
Family
ID=65912836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710897847.8A Active CN109578319B (en) | 2017-09-28 | 2017-09-28 | Miniature dynamic seal circulating pump device suitable for conveying medium containing particles and impurities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109578319B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220984A (en) * | 2011-07-22 | 2011-10-19 | 李冬庆 | Single stage pump with forced circulation rotation-preventing structure |
| CN103603825A (en) * | 2013-11-25 | 2014-02-26 | 丹东克隆先锋泵业有限公司 | Spindle dry-type-running magnetic drive pump |
| CN203948307U (en) * | 2014-02-27 | 2014-11-19 | 大连振源泵业有限公司 | A kind of centrifugal pump of carrying for containing impurity liquid |
| CN207349161U (en) * | 2017-09-28 | 2018-05-11 | 上海佰诺泵阀有限公司 | Miniature dynamic sealing circulation pump suitable for conveying the medium containing granule foreign |
-
2017
- 2017-09-28 CN CN201710897847.8A patent/CN109578319B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220984A (en) * | 2011-07-22 | 2011-10-19 | 李冬庆 | Single stage pump with forced circulation rotation-preventing structure |
| CN103603825A (en) * | 2013-11-25 | 2014-02-26 | 丹东克隆先锋泵业有限公司 | Spindle dry-type-running magnetic drive pump |
| CN203948307U (en) * | 2014-02-27 | 2014-11-19 | 大连振源泵业有限公司 | A kind of centrifugal pump of carrying for containing impurity liquid |
| CN207349161U (en) * | 2017-09-28 | 2018-05-11 | 上海佰诺泵阀有限公司 | Miniature dynamic sealing circulation pump suitable for conveying the medium containing granule foreign |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109578319B (en) | 2024-07-02 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| GR01 | Patent grant |