CN205533182U - Combination twin -screw that screw pump was used - Google Patents
Combination twin -screw that screw pump was used Download PDFInfo
- Publication number
- CN205533182U CN205533182U CN201620064927.6U CN201620064927U CN205533182U CN 205533182 U CN205533182 U CN 205533182U CN 201620064927 U CN201620064927 U CN 201620064927U CN 205533182 U CN205533182 U CN 205533182U
- Authority
- CN
- China
- Prior art keywords
- helical rotor
- driven
- rotor
- screw
- spiral rotor
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a combination twin -screw that screw pump was used, its characterized in that: including initiative screw rod and driven screw, the initiative screw rod is including initiative spiral rotor and driving shaft, driven screw includes driven spiral rotor and driven shaft, initiatively spiral rotor and driven spiral rotor's profile of tooth is the same, the spiral is opposite, initiative spiral rotor and driven spiral rotor intermeshing, initiative spiral rotor and driven spiral rotor have all that the concatenation forms with extrusion spiral rotor by inhaleing spiral rotor, the helical pitch that inhales spiral rotor is greater than extrusion spiral rotor's helical pitch, it is close to the low pressure chamber to inhale spiral rotor, extrusion spiral rotor is close to the high pressure chest. Beneficial effect: the utility model discloses initiative screw rod and driven screw's rotor all has the spiral rotor of suction and the two sections concatenations of spiral rotor of impressing to form. It is big to inhale the spiral rotor helical pitch, and main, driven screw forms great cavity during the meshing, is favorable to the suction of heterogeneous fluid.
Description
Technical field
This utility model relates to screw pump field, particularly relates to oil gas water multi-phase mixed delivering Quimby pump, is specifically related to one
The combination twin screw of screw pump.
Background technology
Screw pump is a kind of positive displacement pump, is that a kind of spatial volume that engages relying on the pump housing to be formed with screw rod changes and moves
Move and carry liquid or be allowed to the drum pump of supercharging.It is widely used in each industrial circles such as oil, chemical industry and boats and ships at present.Existing
Some Quimby pumps are in petroleum industry, and for the heterogeneous conveying of oil gas water, driving and driven screw rod helical pitch is invariable.Due to gas
Having compressibility, in course of conveying, the compression of gas is completely by the backflow of high pressure chest gases at high pressure, and this will cause amount of leakage
Very big, volumetric efficiency is low.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide the combination spiral shell that helical pitch is reduced by low pressure chamber to high pressure chest
Bar.
This utility model solves above-mentioned technical problem and be the technical scheme is that the double spiral shell of combination of a kind of screw pump
Bar, it is characterised in that: including actively screw rod and driven screw, described active screw rod includes actively helical rotor and driving shaft, institute
Stating actively helical rotor and be provided with keyway, described driving shaft is provided with key, and described active helical rotor passes through key connecting actively
On axle, driving shaft drives actively helical rotor to rotate, and described driven screw includes driven helical rotor and driven shaft, described driven
Helical rotor is provided with keyway, and described driven shaft is provided with key, described driven helical rotor by key connecting on driven shaft, by
Driven shaft drives driven helical rotor to rotate, and described active helical rotor is identical with the profile of tooth of driven helical rotor, spiral contrary,
Actively helical rotor and driven helical rotor intermesh, and described active helical rotor and driven helical rotor all have by sucking spiral shell
Gyrator and extrusion helical rotor are spliced, and the helical pitch of described suction helical rotor is led more than described extrusion helical rotor
Journey, described suction helical rotor is near low pressure chamber, and described extrusion helical rotor is near high pressure chest.
Suck screw rotor helical pitch big, actively form bigger cavity, beneficially multiphase flow when screw rod, driven screw engagement
The suction of body.Helical rotor is extruded when heterogeneous fluid enters, owing to extrusion helical rotor helical pitch is little, the gas quilt in heterogeneous fluid
Force compression.Heterogeneous fluid was just compressed before entering high pressure chest, effectively reduces high pressure chest and extrudes between helical rotor
Pressure reduction, amount of leakage is greatly reduced therewith, and volumetric efficiency significantly improves.
Further, described suction helical rotor is plane with the end face that contacts extruding helical rotor.
Further, described suction helical rotor is in close contact with extruding helical rotor.
The utility model has the advantage of: combined threaded rod of the present utility model by active screw rod and driven screw, actively spiral shell
The rotor of bar and driven screw all has suction helical rotor and extrusion helical rotor two sections to be spliced.Suck helical rotor helical pitch
Greatly, bigger cavity, the beneficially suction of heterogeneous fluid are formed during the engagement of driving and driven screw rod.Spiral shell is extruded when heterogeneous fluid enters
Gyrator, little owing to extruding helical rotor helical pitch, the gas in heterogeneous fluid is forced compression.Heterogeneous fluid is entering high pressure chest
The most just being compressed, effectively reduce high pressure chest and the pressure reduction extruded between helical rotor, amount of leakage is greatly reduced therewith, volume
Efficiency significantly improves.This utility model combined threaded rod self compression function to gas, is not available for common screw.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, below by right
In detailed description of the invention or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be embodiments more of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that this utility model sucks helical rotor and extrudes the structural representation that helical rotor separates.
Fig. 3 is profile of the present utility model.
Wherein: 1, actively screw rod 2, driven screw 3, actively helical rotor
4, driving shaft 5, driven helical rotor 6, driven shaft
7, suck helical rotor 8, extrude helical rotor 9, keyway.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described
Embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, this
The every other embodiment that field those of ordinary skill is obtained under not making creative work premise, broadly falls into this practicality
Novel protected scope.
In description of the present utility model, " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that term
Directly ", " level ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, be only
Must have specific for the ease of describing this utility model and simplification description rather than instruction or the device of hint indication or element
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
A kind of combination twin screw of screw pump, it is characterised in that: include actively screw rod 1 and driven screw 2, described active
Screw rod 1 includes actively helical rotor 3 and driving shaft 4, and described active helical rotor is provided with keyway 9, and described driving shaft 4 is provided with
Key, described active helical rotor 3 inserts on driving shaft 4 by keyway 9, and driving shaft 4 drives actively helical rotor 3 to rotate, described
Driven screw 2 includes that driven helical rotor 5 and driven shaft 6, described driven helical rotor 5 are provided with keyway 9, described driven shaft 6
Being provided with key, described driven helical rotor 5 inserts on driven shaft 6 by keyway 9, driven shaft 6 drive driven helical rotor 5 turns
Dynamic, described active helical rotor 3 is identical with the profile of tooth of driven helical rotor 5, spiral is contrary, actively helical rotor 3 and driven spiral shell
Gyrator 5 intermeshes, and described active helical rotor 3 and driven helical rotor 5 all have by sucking helical rotor 7 and extruding spiral
Rotor 8 is spliced, and the helical pitch of described suction helical rotor 7 is more than the helical pitch of described extrusion helical rotor 8, described suction spiral
Rotor 7 is near low pressure chamber, and described extrusion helical rotor 8 is near high pressure chest.
Sucking screw rotor helical pitch big, actively screw rod 1, driven screw 2 form bigger cavity when engaging, the most heterogeneous
The suction of fluid.Helical rotor is extruded when heterogeneous fluid enters, owing to extrusion helical rotor helical pitch is little, the gas in heterogeneous fluid
It is forced compression.Heterogeneous fluid is just compressed entering before high pressure chest, effectively reduce high pressure chest and extrude screw rotor it
Between pressure reduction, amount of leakage is greatly reduced therewith, and volumetric efficiency significantly improves.
Further, described suction helical rotor 7 is plane with the end face that contacts extruding helical rotor 8.
Further, described suction helical rotor 7 is in close contact with extruding helical rotor 8.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, rather than it is limited
System；Although being described in detail this utility model with reference to foregoing embodiments, those of ordinary skill in the art should
Understand: the technical scheme described in foregoing embodiments still can be modified by it, or to the most some or all of
Technical characteristic carries out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from this practicality new
The scope of type each embodiment technical scheme.
Claims (4)
1. the combination twin screw of a screw pump, it is characterised in that: include actively screw rod and driven screw, described active screw rod
Including actively helical rotor and driving shaft, described active helical rotor is provided with keyway, and described driving shaft is provided with key, described master
Dynamic helical rotor is by key connecting on driving shaft, and driving shaft drives actively helical rotor to rotate, described driven screw include from
Dynamic helical rotor and driven shaft, described driven helical rotor is provided with keyway, and described driven shaft is provided with key, described driven spiral
Rotor on driven shaft, is driven driven helical rotor to rotate by driven shaft by key connecting, described active helical rotor and driven
The profile of tooth of helical rotor is identical, spiral contrary, and actively helical rotor and driven helical rotor intermesh, and described active spiral turns
Sub and driven helical rotor all have by suck helical rotor and extrude helical rotor be spliced, leading of described suction helical rotor
Journey is more than the helical pitch of described extrusion helical rotor, and described suction helical rotor is near low pressure chamber, and described extrusion helical rotor is close
High pressure chest.
The combination twin screw of a kind of screw pump the most according to claim 1, it is characterised in that: described suction helical rotor
Helical pitch more than the helical pitch of described extrusion helical rotor.
The combination twin screw of a kind of screw pump the most according to claim 1, it is characterised in that: described suction helical rotor
It is plane with the end face that contacts extruding helical rotor.
The combination twin screw of a kind of screw pump the most according to claim 1, it is characterised in that: described suction helical rotor
It is in close contact with extruding helical rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620064927.6U CN205533182U (en) | 2016-01-22 | 2016-01-22 | Combination twin -screw that screw pump was used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620064927.6U CN205533182U (en) | 2016-01-22 | 2016-01-22 | Combination twin -screw that screw pump was used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205533182U true CN205533182U (en) | 2016-08-31 |
Family
ID=56767833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620064927.6U Expired - Fee Related CN205533182U (en) | 2016-01-22 | 2016-01-22 | Combination twin -screw that screw pump was used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205533182U (en) |
-
2016
- 2016-01-22 CN CN201620064927.6U patent/CN205533182U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20200122 |