CN208203554U - A kind of low pressure and mass flow compact Quimby pump - Google Patents
A kind of low pressure and mass flow compact Quimby pump Download PDFInfo
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- CN208203554U CN208203554U CN201820830426.3U CN201820830426U CN208203554U CN 208203554 U CN208203554 U CN 208203554U CN 201820830426 U CN201820830426 U CN 201820830426U CN 208203554 U CN208203554 U CN 208203554U
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- pump
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- casing
- driving shaft
- low pressure
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Abstract
The utility model relates to a kind of low pressure and mass flow compact Quimby pumps, including the pump housing, it is arranged in parallel and pumps intracorporal driving shaft and driven shaft, left hand helix set, right hand helix set are equipped on driving shaft and driven shaft, driving shaft and driven shaft are mounted on the pump housing by bearing block；The driving shaft/driven shaft bearings at both ends supports that the ratio I of spacing Lb and screw-casing installation place diameter of axle Dh is 9-10.The utility model has the beneficial effects that improving the transfer efficiency of pump, the installation dimension and weight of pump are reduced, the manufacturing cost of pump is reduced.
Description
Technical field
The utility model belongs to twin-screw pump technical field more particularly to a kind of low pressure and mass flow compact Quimby pump.
Background technique
Universal, the high temperature modification of Quimby pump on domestic and international market point at present, high-pressure type etc. have vertical installation again respectively,
The different structures forms such as horizontal installation.High-temperature double screw belongs to long axis series；High pressure Quimby pump belongs to thick axis, heavy duty system
Column, not within pump patent comparison range.Current general operating condition, i.e. pumped (conveying) medium temperature are lower than 150 DEG C, and pressure is lower than 60bar
All be universal serial horizontal or Vertical Twin pump.
But in oil field, ship, oil depot, harbour etc. is some special should to convey clean crude oil or combustion in operating condition
Material oil, pumped (conveying) medium temperature are usually less than 100 DEG C, and pressure is lower than 16bar；Generic configuration Quimby pump design requirement is much high
In actual requirement, cause that the manufacturing cost of pump is high, installation dimension is big, weight is heavy, the relatively low disadvantage of service efficiency in this way.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of low pressure and mass flow compact Quimby pump, mesh
Be improve pump transfer efficiency, reduce the installation dimension and weight of pump, reduce the manufacturing cost of pump.
The technical solution of the utility model are as follows:
A kind of low pressure and mass flow compact Quimby pump, including the pump housing are arranged in parallel and pump intracorporal driving shaft and driven
It is equipped with left hand helix set, right hand helix set on axis, driving shaft and driven shaft, driving shaft and driven shaft are mounted on by bearing block
On the pump housing；The driving shaft/driven shaft bearings at both ends supports that the ratio I of spacing Lb and screw-casing installation place diameter of axle Dh is 9-10.
Compared to the prior art, the technical program is no more than 100 DEG C for medium temperature, and pump discharge pressure is no more than
The operating condition of 16bar optimizes the diameter of axle and length ratio under the premise of guaranteeing rotor rigidity, service performance, and general-purpose pump I value is 11-
12, optimized technical solution neither will cause bearing temperature overtemperature and overload caused to damage；And due to driving shaft and driven shaft two
End supports distance to reduce, and bending strength improves, and the diameter of axle needed for realizing same load can reduce；Applying working condition limited load
No more than 16bar, the diameter of screw rod can be further reduced compared with universal architecture.
Based on above scheme, the present invention is also made that following improvement:
Further, the ratio I c of the screw-casing groove depth T and screw-casing outside diameter Dw is 0.30-0.33, wherein spiral shell
Rotation set groove depth T=(Dw-Df)/2, Df is screw-casing bottom circular diameter.General-purpose pump Ic is 0.20-0.26, in the technical program, due to
The diameter of axle is reduced, and groove depth is accordingly increased, can further improve the conveying capacity of pump.
Further, the ratio I d of the screw-casing outside diameter Dw and screw-casing length L is 1.2-1.4.This improvement side
Screw-casing length is optimized in case, general-purpose pump Id (0.8-1.18) is optimized for 1.2-1.4.
Further, overflow valve built in the pump housing, the overflow valve are located under pump inlet flange opposite, outlet(discharge) flange
Side.Traditional external overflow valve is changed to embedding structure in this improvement project, reduces the mounting height of pump.
Further, the bearing block is connect with the pump housing by stud.In this improvement project, by the function of spacer flanger
It can be integrated on bearing block, drive end and non-driven-end bearing holder structure highly compact, save the length of bearings at both ends support,
Improve the bending resistance of screw rod.
The beneficial effect of the technical program is:
Both ends support distance to reduce, and bending strength improves, and the diameter of axle needed for realizing same load can reduce；The diameter of axle subtracts
Small, in an equal amount of screw-casing, groove depth can be increase accordingly, and under same operating condition, pump conveying capacity is increase accordingly；It will be external
Overflow valve is changed to embedding structure, reduces the mounting height of pump；Wall thickness accordingly reduces, weight saving；Compared with general pump,
Installation dimension and weight reduce about 30% respectively；The efficiency of pump improves about 10-15%；The case where same installation dimension and weight
Under, the conveying capacity of pump improves 30%.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of all-purpose double-screw pump.
Fig. 2 is the utility model overall structure diagram.
Fig. 3 is the utility model section structural schematic diagram.
Fig. 4 is the utility model structure of relief valve schematic diagram.
In figure, 1, the pump housing；2, driving shaft；3, driven shaft；4, screw-casing；5, bearing block；6, overflow valve；7, outlet(discharge) flange；
8, suction flange；9, spacer flanger.
Specific embodiment
As in Figure 2-4, a kind of low pressure and mass flow compact Quimby pump, including the pump housing 1 are arranged in parallel intracorporal with pump
Driving shaft 2 and driven shaft 3, are equipped with left hand helix set 4, right hand helix set 4 on driving shaft 2 and driven shaft 3, driving shaft 2 with from
Moving axis 3 is mounted on the pump housing 1 by bearing block 5；Driving shaft supports pitch structure identical with driven shaft bearings at both ends, driving shaft/
Driven shaft bearings at both ends supports that the ratio I of spacing Lb and screw-casing installation place diameter of axle Dh is 9-10.The 4 groove depth T of screw-casing with
The ratio I c of screw-casing outside diameter Dw is 0.30-0.33, wherein screw-casing groove depth T=(Dw-Df)/2, Df is screw-casing bottom
Circular diameter.The ratio I d of the screw-casing outside diameter Dw and screw-casing length L is 1.2-1.4.Overflow valve built in the pump housing 1
6, the overflow valve 6 is located at the lower section on pump inlet flange opposite 7, outlet(discharge) flange 8.It as shown in Figure 1,3, will in the technical program
The function of spacer flanger is integrated on bearing block 5, is driven end and non-driven-end bearing holder structure highly compact, is saved two end axles
The length for holding support improves the bending resistance of screw rod.The bearing block 5 is connect with the pump housing 1 by stud.
Claims (4)
1. a kind of low pressure and mass flow compact Quimby pump, including the pump housing are arranged in parallel and pump intracorporal driving shaft and driven shaft,
Left hand helix set, right hand helix set are equipped on driving shaft and driven shaft, driving shaft is mounted on pump by bearing block with driven shaft
On body；It is characterized by: the driving shaft/driven shaft bearings at both ends supports the ratio of spacing Lb and screw-casing installation place diameter of axle Dh
I is 9-10.
2. low pressure and mass flow compact Quimby pump according to claim 1, it is characterised in that: the screw-casing groove depth T
Ratio I c with screw-casing outside diameter Dw is 0.30-0.33, wherein screw-casing groove depth T=(Dw-Df)/2, Df is screw-casing
Bottom circular diameter.
3. low pressure and mass flow compact Quimby pump according to claim 1, it is characterised in that: the screw-casing outer circle is straight
The ratio I d of diameter Dw and screw-casing length L is 1.2-1.4.
4. low pressure and mass flow compact Quimby pump according to claim 1, it is characterised in that: overflow built in the pump housing
Valve, the overflow valve are located at the lower section on pump inlet flange opposite, outlet(discharge) flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820830426.3U CN208203554U (en) | 2018-05-25 | 2018-05-25 | A kind of low pressure and mass flow compact Quimby pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820830426.3U CN208203554U (en) | 2018-05-25 | 2018-05-25 | A kind of low pressure and mass flow compact Quimby pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208203554U true CN208203554U (en) | 2018-12-07 |
Family
ID=64516744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820830426.3U Active CN208203554U (en) | 2018-05-25 | 2018-05-25 | A kind of low pressure and mass flow compact Quimby pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208203554U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798242A (en) * | 2019-03-26 | 2019-05-24 | 山东劳伦斯流体科技有限公司 | A kind of small flow Quimby pump of cantilevered single suction |
| CN110397588A (en) * | 2019-07-29 | 2019-11-01 | 山东劳伦斯流体科技有限公司 | A kind of high-pressure heavy-load Quimby pump |
-
2018
- 2018-05-25 CN CN201820830426.3U patent/CN208203554U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798242A (en) * | 2019-03-26 | 2019-05-24 | 山东劳伦斯流体科技有限公司 | A kind of small flow Quimby pump of cantilevered single suction |
| CN110397588A (en) * | 2019-07-29 | 2019-11-01 | 山东劳伦斯流体科技有限公司 | A kind of high-pressure heavy-load Quimby pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201103 Address after: 062150 north side of Zhenggang Road, Botou Industrial Zone, Cangzhou City, Hebei Province Patentee after: HEBEI HENGSHENG PUMPS Co.,Ltd. Address before: 264100 Jinniu Mountain Road, Muping District, Yantai, Shandong Province, No. 515 Patentee before: SHANDONG LAWRENCE FLUID TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |