CN206221240U - A kind of screw pump stator of modified nano zinc oxide nitrile rubber - Google Patents
A kind of screw pump stator of modified nano zinc oxide nitrile rubber Download PDFInfo
- Publication number
- CN206221240U CN206221240U CN201621165678.6U CN201621165678U CN206221240U CN 206221240 U CN206221240 U CN 206221240U CN 201621165678 U CN201621165678 U CN 201621165678U CN 206221240 U CN206221240 U CN 206221240U
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- China
- Prior art keywords
- stator
- screw pump
- nitrile rubber
- zinc oxide
- rubber
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- 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.)
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Abstract
A kind of screw pump stator of modified nano zinc oxide nitrile rubber, it is related to a kind of screw pump stator, the stator in the screw pump stator steel body overcoat to be cast in steel body overcoat by bushing of rubber, stator, around pump case axial line, is made up of internal messing in the rotor shape of planetary rotation；Stator is fixed together with steel bushing by binding agent, and stator inner helical surface is taken as 14 22 helical pitch numbers with the multiple sealed chambers of formation, the stator liner length of screw pump is engaged between rotor surface.The utility model nitrile rubber adds modified nano zinc oxide, improves dispersiveness of the nanometer Zinc oxide powder in rubber matrix, effectively improves the comprehensive usage performance of vulcanized rubber.On the one hand the ageing properties of resistance to oil swell of nitrile rubber are improved, the intensity and hardness of nitrile rubber is on the other hand improve, its abrasion resistance properties is improved.The utility model has widened the range of application of screw pump nitrile rubber.
Description
Technical field
The utility model is related to a kind of screw pump stator, more particularly to a kind of spiral shell of modified nano zinc oxide nitrile rubber
Bar pump stator.
Background technology
Current China's major part oil field come into two adopt, three adopt the stage, heavy oil wells frequency is existing, and conventional oil production equipment is not
Adapt to currently to recover the oil the requirement of operating mode, and submersible screw pump is particularly suitable for the exploitation of such high viscosity heavy oil wells.Due to starting
Later, technology is still immature in addition, and also there is a big difference than foreign countries for the service life of China's submersible screw pump.How spiral shell is extended
In the bar pump usage life-span, renewal frequency and cost are reduced, be all the time the study hotspot in the engineering field.
In general purpose rubber, nitrile rubber (NBR) have excellent oil resistivity, thus be widely used in oil sealing, fuel tank,
Resistant and oil resistant rubber roller, Oil Resistant Rubber Plate and screw pump rubber lining etc..It is non-identical, it is necessary in NBR from reinforcing synthetic rubber with other
Various compounding ingredients are added to improve, improve its performance.Zinc oxide (ZnO) is used as sulfurate activity in sulfur cross-linking system
Agent, is one of important compounding ingredient in rubber industry, can not only activate whole vulcanizing system, and the crosslinking for improving vulcanizate is close
Degree, can also improve vulcanizate heat aging property.
Nano zine oxide has the specific properties of nano material, such as skin effect, small-size effect etc..Zinc oxide particle diameter
Reduce so that zinc oxide reactivity strengthens, it is possible to achieve and the combination in rubber " molecule " level, but particle diameter reduction,
The specific surface energy of zinc oxide particles is increased simultaneously so that nano-powder is reunited seriously, in order to preferably give play to nano material
Nano effect, improve its dispersiveness in matrix material, improve melting efficiency and be modified, it is necessary to carry out surface to it.
Example using nano zinc oxide modified rubber is relatively more, such as a kind of multifunctional nano-ZnO reinforced rubber（Patent is public
The number of opening is CN101891907A）, what is taken is the method that the surfactant after being diluted with acetone processes nano-ZnO；For rubber
Nano zine oxide composite master batch of glue addition and preparation method thereof（Patent publication No. is CN1188459C）, use in nanometer
Difference in functionality composite components are added in zinc oxide, the method for nano zine oxide composite master batch is obtained；Nano zine oxide/polypropylene/
PLA Composite Fiber material and preparation method thereof（Patent publication No. CN101407948B）, use plasma processing method
Deng the performance of material is improved very well.
The content of the invention
The purpose of this utility model is to provide a kind of screw pump stator of modified nano zinc oxide nitrile rubber, this practicality
It is new that modified nano zinc oxide is added into nitrile rubber, it is to avoid nano-particle is reunited because surface high can trigger and causes to lose
Nano-particle performance.And screw pump stator is made with nitrile rubber, and excellent oil resistant, wearability are made it have, improve material
Service life and range of application.
The purpose of this utility model is achieved through the following technical solutions：
A kind of screw pump stator of modified nano zinc oxide nitrile rubber, determining in the screw pump stator steel body overcoat
Son, casts in steel body overcoat by bushing of rubber, and stator passes through internal messing around pump case axial line, in the rotor of planetary rotation
Shape is constituted；Stator is fixed together with steel bushing by binding agent, and stator inner helical surface forms multiple close with being engaged between rotor surface
Envelope chamber, the stator liner length of screw pump is taken as 14-22 helical pitch number.
A kind of described modified nano zinc oxide prepares nitrile rubber for screw pump stator, and the structure of the screw pump is joined
Number：The eccentric distance e of pump, pump rotor diameter D, stator helical pitch T are chosen by following ratio：,。
A kind of described modified nano zinc oxide prepares nitrile rubber for screw pump stator, the initial mistake of the screw pump
The ratio being full of with screw diameterChosen between 0.008-0.012.
Advantage of the present utility model is with effect：
The utility model nitrile rubber adds modified nano zinc oxide, improves nanometer Zinc oxide powder in rubber matrix
Dispersiveness, effectively improve the comprehensive usage performance of vulcanized rubber.On the one hand the aging of resistance to oil swell of nitrile rubber is improved
Can, the intensity and hardness of nitrile rubber are on the other hand improve, improve its abrasion resistance properties.The utility model has widened screw rod
The range of application of pump nitrile rubber.
Brief description of the drawings
Fig. 1 is screw pump rotor front view；
Fig. 2 is screw pump rotor left view；
Fig. 3 is screw pump stator front view；
Fig. 4 is screw pump stator left view；
Fig. 5 is screw pump dynamic schematic front view；
Fig. 6 is that screw pump dynamically illustrates left view.
Specific embodiment
The utility model is described in detail with reference to embodiment.
Embodiment 1
In figure：1- screw pump rotors；2- screw pump stators；3- fluids.
The utility model screw pump be by under working condition it is motionless with rubber as bushing and cast in steel body overcoat, shape
Into stator and with stator by internal messing, and constituted around the steel body rotor that pump case axial line does planetary rotation.Stator and steel
Set is fixed together by binding agent.Stator inner helical surface is engaged between rotor surface, forms multiple sealed chambers, is conveyed
Medium is engaged in the sealed chamber to be formed in stator with rotor, and swing offset is done along screw pump axis direction, from screw pump suction
Hold and moved to outlet side.
The structural parameters of screw pump（The eccentric distance e of pump, pump rotor diameter D, stator helical pitch T）Selected by following ratio
Take：,.The stator liner length of screw pump is taken as 14-22 helical pitch number.Screw pump
Initial interference and the ratio of screw diameterChosen between 0.008-0.012.
Instrument and equipment used by the utility model includes：XK-150 type opening rubber mixing machines, Qingdao Yadong machinery share has
Limit company.M2000-A types rubber is without rotor vulcameter, Taiwan high ferro Science and Technology Co., Ltd..XLB type vulcanizing presses, it is blue or green
Island Yadong machinery limited company.LX-A type Shao Er A type hardness tester meters, Shanghai is from nine measurer Co., Ltds.TH5000 series
5000N electronic universal testers, Jiangdu Tian Can test machines factory.
It is made up of following raw material by quality parts ratio：100 parts of nitrile rubber, 70 parts of high wear-resistant carbon black, modified Nano oxidation
1 part of zinc, 1 part of stearic acid, 1 part of 4010NA age resistor, 0.5 part of sulphur, 1.5 parts of DM, 1.5 parts of TMTD, 0.15 part of MgO, DOP
2 parts.
A kind of development of screw pump stator nitrile rubber, step is as follows：To weigh material standby for number according to the above ratio；Will
Mill roll spacing is adjusted to 0.5-1mm, weighs nitrile rubber and delivers thin logical plasticate 3 minutes and bag roller；Compounding ingredient is sequentially added
Kneaded in mill.Feeding sequence is：Nitrile rubber → sulphur → stearic acid → modified nano zinc oxide → antioxidant 4010NA
→ N330 high wear-resistant carbon blacks → softening agent DOP → captax gO → altax → Vulcanization accelerator TMTD, cut and smash 8-10 times and make cooperation
Bottom sheet after agent mixing is uniform；After gained elastomeric compound is placed 24 hours, back mixing 3-5 minutes, cure time tc is determined90；According to institute
Obtain tc90, elastomeric compound is vulcanized in vulcanizing press.Above-mentioned cured samples are screened, selection surface is smooth, without gas
The sample of bubble carries out performance test, main to pass through：Mechanics Performance Testing；Hardness performance is tested；Oil resistance passes through normal temperature and pressure
Crude oil immersion test is completed；Wear test is tested.
The mechanical experimental results of the present embodiment gained screw pump stator nitrile rubber are shown in Table 1, hardness performance test
2 are shown in Table, resistance to oil swell test result is shown in Table 3, and wear test is shown in Table 4.
The tensile strength test result of table 1
| Tensile strength（MPa） | |
| Example 1 | 19.231 |
| Example 2 | 20.098 |
| Example 3 | 21.996 |
| Example 4 | 20.773 |
| Example 5 | 19.45 |
| Example 6 | 19.36 |
The hardness performance test result of table 2
| Shao Er A type hardness testers/degree | |
| Example 1 | 76 |
| Example 2 | 77 |
| Example 3 | 81 |
| Example 4 | 79 |
| Example 5 | 75 |
| Example 6 | 73 |
The normal temperature and pressure crude oil of table 3 soaks result
The wear test test result of table 4
| Wear extent（mg） | |
| Example 1 | 35.6 |
| Example 2 | 33.7 |
| Example 3 | 25 |
| Example 4 | 29.8 |
| Example 5 | 40.6 |
| Example 6 | 47.3 |
Claims (3)
1. a kind of screw pump stator of modified nano zinc oxide nitrile rubber, it is characterised in that outside the screw pump stator steel body
Stator in set, is cast in steel body overcoat by bushing of rubber, and stator, around pump case axial line, is turned by internal messing in planet
Dynamic rotor shape is constituted；Stator is fixed together with steel bushing by binding agent, engaging between stator inner helical surface and rotor surface
Into multiple sealed chambers, the stator liner length of screw pump is taken as 14-22 helical pitch number.
2. a kind of screw pump stator of modified nano zinc oxide nitrile rubber according to claim 1, it is characterised in that institute
State the structural parameters of screw pump：The eccentric distance e of pump, pump rotor diameter D, stator helical pitch T are chosen by following ratio：。
3. a kind of screw pump stator of modified nano zinc oxide nitrile rubber according to claim 1, it is characterised in that institute
State the initial interference of screw pump and the ratio of screw diameterChosen between 0.008-0.012.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621165678.6U CN206221240U (en) | 2016-11-02 | 2016-11-02 | A kind of screw pump stator of modified nano zinc oxide nitrile rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621165678.6U CN206221240U (en) | 2016-11-02 | 2016-11-02 | A kind of screw pump stator of modified nano zinc oxide nitrile rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206221240U true CN206221240U (en) | 2017-06-06 |
Family
ID=58787922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621165678.6U Expired - Fee Related CN206221240U (en) | 2016-11-02 | 2016-11-02 | A kind of screw pump stator of modified nano zinc oxide nitrile rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206221240U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106543503A (en) * | 2016-11-02 | 2017-03-29 | 沈阳化工大学 | A kind of modified nano zinc oxide prepares nitrile rubber and for screw pump stator |
| CN113236561A (en) * | 2021-04-26 | 2021-08-10 | 西安交通大学 | Variable-pitch co-rotating meshing double-screw compressor rotor and compressor |
-
2016
- 2016-11-02 CN CN201621165678.6U patent/CN206221240U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106543503A (en) * | 2016-11-02 | 2017-03-29 | 沈阳化工大学 | A kind of modified nano zinc oxide prepares nitrile rubber and for screw pump stator |
| CN113236561A (en) * | 2021-04-26 | 2021-08-10 | 西安交通大学 | Variable-pitch co-rotating meshing double-screw compressor rotor and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170606 Termination date: 20191102 |