CN108571432A - A kind of corrosion-resistant eccentric wheel pump - Google Patents
A kind of corrosion-resistant eccentric wheel pump Download PDFInfo
- Publication number
- CN108571432A CN108571432A CN201810652768.5A CN201810652768A CN108571432A CN 108571432 A CN108571432 A CN 108571432A CN 201810652768 A CN201810652768 A CN 201810652768A CN 108571432 A CN108571432 A CN 108571432A
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- Prior art keywords
- plunger
- corrosion
- resistant
- eccentric
- pump housing
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- 238000005260 corrosion Methods 0.000 title claims abstract description 35
- 230000007797 corrosion Effects 0.000 title claims abstract description 35
- 239000003351 stiffener Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000000919 ceramic Substances 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 230000009471 action Effects 0.000 claims abstract description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 5
- 229920006324 polyoxymethylene Polymers 0.000 claims description 5
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 2
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims description 2
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 229920003023 plastic Polymers 0.000 abstract description 13
- 239000004033 plastic Substances 0.000 abstract description 13
- 239000010687 lubricating oil Substances 0.000 abstract description 7
- 238000010612 desalination reaction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000013535 sea water Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 239000010242 baoji Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/18—Lubricating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention relates to a kind of corrosion-resistant eccentric wheel pumps, cover board including the pump housing, on the pump housing, the eccentric stiffener in the pump housing and the plunger with eccentric stiffener cooperation, cavity is formed between the pump housing and cover board, the feed check valve being connected to cavity and supercharging check valve are equipped in the pump housing, one end of plunger is connected to cavity, the other end is installed in the pump housing and is arranged with spring, and spring is limited in the pump housing, and plunger realizes reciprocating motion under the action of eccentric stiffener and spring.Spring of the present invention does not contact fluid, the material based on plastics, reach corrosion resistant purpose using means such as corrosion-resistant one-way valves, achieve the purpose that as main motion pair in the contact that lubricating oil submerges with ceramic gasket or ceramic plunger by using bearing wear-resisting under high speed rotary motion, have many advantages, such as that corrosion-resistant, reliability is high, at low cost, compact-sized, can be widely applied to the supercharging to all kinds of corrosive fluids.
Description
Technical field
The present invention relates to Seawater Treatment fields, and in particular to a kind of corrosion-resistant eccentric wheel pump.
Background technology
Desalination technology receives more and more attention as the important means for alleviating water resource shortage.Numerous
Desalination technology in, hyperfiltration since cost is lower, gradually become market mainstream technological means.Reverse osmosis seawater
Desalination technology is that raw material seawater is pressurizeed using high-pressure pump, its pressure is made to reach reverse osmosis 5.0~7.0MPa of operating pressure (depending on sea
Depending on salinity water difference)；Plunger pump has been all made of for middle-size and small-size desalination plant as high-pressure pump, but for a long time
Plunger pump price under briny environment is very expensive, greatly limits the application of middle-size and small-size sea water desalination.It is with 1t/h plunger pumps
The price of example, the offshore companies such as Donfoss, Spark product exceeds 100,000 yuan, although the product prices such as domestic Baoji Water Pump Factory
As long as more than 10,000 yuan, but product quality does not obtain market approval yet, and sales situation is unsatisfactory, and for middle-size and small-size sea water desalination
The main users of device --- for fisherman, even the price of home products is still excessively high.
Sea water desalination plunger pump is at high price have in it the reason of.No matter axial plunger pump or radial plunger are used
Pump, contact fluid section be required to use resistant material, most common material be beryllium-bronze, two phase stainless steel, 316L not
Become rusty steel, super-duplex stainless steel etc., these material prices are expensive, process is complicated, in addition needing to consider that seawater crystallizes, is resistance to
Factors and used all kinds of heat treatments, the surface treatment means such as mill keep its cost high.
The flow passage components such as check valve, spring are also faced with same problem.Medium and small type axial piston pump, lobe pump, partially
In heart wheel pump, crank connecting link or similar mechanism are mostly used, this way can effectively ensure that the reciprocating motion of plunger, but connecting rod
Both ends stressing conditions are severe；This problem causes to require Machining of Connecting Rod high, requires lubricating system when work high and to turning
The limitation of speed is more.Also part pump uses the design that spring applies thrust in fluid channel to plunger, although this spline structure
It is more simple, but the corrosion resistance of spring is required very high.In addition, middle-size and small-size plunger pump, lobe pump, eccentric wheel pump configuration compared with
For complexity, runner is especially true, this also further improves its processing cost.
Invention content
The purpose of the present invention is exactly to provide a kind of corrosion-resistant eccentric wheel pump to solve the above-mentioned problems.
The purpose of the present invention is achieved through the following technical solutions：
A kind of corrosion-resistant eccentric wheel pump, including the pump housing, the cover board on the pump housing, the eccentric stiffener in the pump housing with
And the plunger with eccentric stiffener cooperation, cavity is formed between the pump housing and cover board, is equipped in the pump housing and is connected with the cavity
Logical feed check valve and supercharging check valve, one end of the plunger is connected to cavity, and the other end is installed in the pump housing and is arranged
There are spring, the spring to be limited in the pump housing, the plunger realizes reciprocating motion under the action of eccentric stiffener and spring：
When eccentric stiffener pushes plunger to be moved into cavity, cavity internal pressure increases, and feed check valve is under the action of the pressure difference of both sides
It closes；When pressure, which is persistently increased to supercharging check valve both sides pressure difference, is more than the unidirectional valve opening pressure of supercharging, supercharging check valve is opened
It opens, high-pressure fluid working medium is provided to outside.When eccentric stiffener is moved far from cavity, under the action of the spring, plunger will follow closely
Eccentric stiffener is moved far from cavity together, and cavity internal pressure reduces, and supercharging check valve is closed under the action of the pressure difference of both sides；When
When pressure is decrease continuously to feed check valve both sides pressure difference more than feed check valve Opening pressure, feed check valve is opened, external
Low-pressure fluid working medium enters in cavity.
Further, using bulk ceramics plunger or ceramic gasket is being arranged with the contact surface of eccentric stiffener in the plunger.
For the friction problem for solving with base bearing, can be adopted to the higher occasion of life requirements using ceramic gasket at the place of being in contact with it
With monoblock type plunger scheme.
Further, the ceramic gasket uses Al2O3Ceramics.
Further, the plunger is cylindrical structure, and section is T-shaped, includes the Plunger skirt coordinated with eccentric stiffener
With thinner plunger stem, the spring pocket is set in plunger stem, and the both ends of spring are respectively by the Plunger skirt of plunger and pump
Body limits.In addition, to solve the problems, such as the circulation of lubricating oil, multiple oil leak holes can be outputed in Plunger skirt.
Further, the eccentric stiffener includes eccentric bushing, the base bearing outside eccentric bushing and across eccentric bushing
Drive shaft.
Further, the eccentric bushing and the base bearing outside eccentric bushing can be replaced with capacity eccentric bearing, can will also be driven
Eccentric part is processed on moving axis replaces eccentric bushing.
Further, the portion that the pump housing, cover board, feed check valve, supercharging check valve and plunger are in contact with fluid
Divide and material is used to be made for POM, UPVC, PTFE or ABS plastic material, can also be needed using not according to corrosion-resistant environment and intensity
Rust steel, titanium alloy or ceramic material are made, and fabulous corrosion resistance is shown as the plastics of representative using POM, UPVC, PTFE, ABS
Can, corrosion-resistant target can be reached as material of main part using plastics, plastics itself are cheap, in addition Shooting Technique can be used
It is produced in batches, therefore cost can be substantially reduced compared with traditional material structure.
Further, the feed check valve uses magnet-type check valve, and magnet spool and valve seat with supercharging check valve
It is coated for PTFE resistant materials, spring check valve can also be used, spring uses stainless steel according to corrosion-resistant environmental requirement
Or titanium alloy material.
Further, the plunger, feed check valve or supercharging check valve are installed in same sealing plane, and using close
Seal is sealed.
Further, one, two or more plunger can be used in the plunger, respectively constitutes single plunger pump, duplex plunger pump
Or multipe plunger pump.
The present invention does not contact the skirt section of fluid by placing the spring in plunger, using material based on plastics, and uses
The means such as corrosion-resistant one-way valve reach corrosion resistant purpose, by using bearing and ceramic gasket or ceramic plunger in lubrication oil immersion
Contact in the case of not is wear-resisting under high speed rotary motion to achieve the purpose that as main motion pair, has corrosion-resistant, reliable
The advantages that property is high, at low cost, compact-sized, can be widely applied to the supercharging to all kinds of corrosive fluids.
Compared with prior art, advantages of the present invention is specially：
1, corrosion-resistant target can be reached as material of main part using plastics, plastics itself are cheap, in addition can be used
Shooting Technique is produced in batches, therefore cost can be substantially reduced compared with traditional material structure.
2, using extremely simple motion structure, eccentric stiffener is in direct contact with plunger, is resetted by spring, with crank connecting link
Mechanism compares, and directly reduces cost.
3, ceramic gasket is added to solve frictional dissipation in the mode that lubricating oil submergence is in direct contact with bearing in plunger
Problem greatly reduces abrasion and its production since friction coefficient is extremely low between lubricating oil submergence situation lower bearing and ceramic gasket
Raw heat greatly improves product service life.
4, spring is limited in the pump housing, does not contact fluid, using common spring, with the bullet for being arranged in fluid channel
Spring is compared, and reliability higher, cost are lower, longer life expectancy.
5, shell, cover board can be moulding, and bearing, spring are standard component, and check valve can be on the market with lower price
Purchase, plunger and eccentric bushing are also structure easy to process, each component part do not needed except eccentric bushing in addition to it is expensive it is hot at
Reason and surface treatment procedure, therefore processing cost is relatively low.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of corrosion-resistant eccentric wheel pump provided by the invention；
Fig. 2 is switch plunger structure diagram provided by the invention；
Fig. 3 is monoblock type switch plunger structure diagram provided by the invention；
Fig. 4 is split type switch plunger structure diagram provided by the invention；
Fig. 5 is that high-pressure section provided by the invention seals schematic diagram；
In figure：The pump housing 1, plunger 2, spring 3, feed check valve 4, supercharging check valve 5, cover board 6, base bearing 7, eccentric bushing 8,
Drive shaft 9.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of corrosion-resistant eccentric wheel pump, as shown in Figure 1, including the pump housing 1, the cover board 6 on the pump housing 1, being set to the pump housing 1
Interior eccentric stiffener and the plunger 2 with eccentric stiffener cooperation, eccentric stiffener includes eccentric bushing 8, the main shaft outside eccentric bushing 8
Hold 7 and across eccentric bushing 8 drive shaft 9, form cavity between the pump housing 1 and cover board 6, be equipped in the pump housing 1 and to be connected to cavity
Feed check valve 4 and supercharging check valve 5, one end of plunger 2 are connected to cavity, and the other end is installed in the pump housing 1 and is arranged with bullet
Spring 3, spring 3 are limited in the pump housing 1, and plunger 2 realizes reciprocating motion under the action of eccentric stiffener and spring 3.Plunger 2 is
Cylindrical structure, section is T-shaped, includes the Plunger skirt coordinated with eccentric stiffener and plunger stem, and spring 3 is sheathed on plunger rod
In portion, the both ends of spring 3 are limited by the Plunger skirt of plunger 2 and the pump housing 1 respectively.Plunger 2 and the contact surface of eccentric stiffener are arranged
Ceramic gasket, ceramic gasket use Al2O3Ceramics.
Fabulous corrosion resistance is shown as the plastics of representative using POM, UPVC, PTFE, ABS, the present embodiment pump housing 1,
Cover board 6, feed check valve 4, supercharging check valve 5 and the part that is in contact with fluid of plunger 2 use material for POM, UPVC,
PTFE or ABS plastic material are made, cheap, are produced in batches in addition Shooting Technique can be used, with traditional material structure
Compared to cost can be substantially reduced.
Base bearing 7 is in direct contact with plunger 2, is resetted by spring 3, and compared with toggle, structure is obviously simple
It is single, reduce cost.
Scheme shown in Fig. 1 includes 1 additional bearing, is used to share the stress of base bearing.Also may be used in design
Cantilever structure is used as needed, or increases the design means in the design of the conventional mechanicals such as thrust bearing.
Switch plunger structure diagram such as Fig. 2 uses ceramics for the friction problem for solving with base bearing 7 at the place of being in contact with it
Gasket.To solve the problems, such as the circulation of lubricating oil, multiple oil leak holes have been outputed in Plunger skirt.To the higher field of life requirements
Close, monoblock type plunger scheme can be used and see Fig. 3, but since it belongs to irregular structure, difficulty of processing is higher, processing cost compared with
Height also can be used split type plunger scheme and sees Fig. 4 at this time, and piston body is regular cylindrical body at this time, using ceramic material, thereon
It is provided with mounting hole, and skirt section uses plastics or metal material.
The present invention is using in plunger plus ceramic gasket and bearing are subject in such a way that lubricating oil is submerged and is in direct contact
Solve, friction coefficient is extremely low due to being submerged between situation lower bearing and ceramic gasket in lubricating oil, greatly reduce abrasion and
Its heat generated also greatly improves life of product.
Since spring is arranged in the skirt section that plunger does not contact fluid, common spring is used, is flowed with being arranged in
The spring in body channel is compared, and reliability higher, cost are lower.
It is very high or there are high temperature, the occasion of low temperature and certain poles having to plastics compared with strong corrosive in certain pressure
Occasion existing for situation is held, is difficult to meet requirement using plastics, at this time it is contemplated that using stainless steel, titanium alloy, ceramics etc.
Material substitution plastics.A kind of magnet-type check valve is proposed in Chinese patent CN201410274918.5, it is external coated
The resistant materials such as PTFE can also be applied in the present invention.It can also be used and One-way Plastic Valves spring is changed to resistant material system
Spring made of making, to reach corrosion resistant purpose；It needs to use stainless steel or titanium alloy according to corrosion-resistant environmental requirement at this time
Deng as spring material.
The seal failure of high-pressure section easily causes functions of the equipments and degrades or even completely lose, but also may cause environment
Pollution the problems such as, therefore the present invention reduces the quantity of high pressure sealing as far as possible, thus by plunger 2, feed check valve 4, supercharging
Check valve 5 is installed in same sealing plane, can be sealed to external leakage using sealing element such as O-ring, high-pressure section is close
Schematic diagram such as Fig. 5 is sealed, the shape of sealing element is modified according to requirements, using kidney-shaped, ellipse or other does not advise such as
Then shape.
Since high-pressure section can be arranged symmetrically, its runner is also arranged symmetrically, therefore shell can be in same plane
The corresponding hole of interior processing seperated need not realize fission and necessarily bring sealing surface, solid to realize that runner is realized in an entirety
The increase for determining mounting surface and its attachment increases the complexity of system, reduces the reliability of system.Twin columns as shown in Figure 1
It is clear opening to feed runner among plug scheme, in shell runner, be pressurized runner, passes through the feed opening at middle part, pressurized hole respectively
Lead to the feed inlet outside shell, at boost port.
Increase corresponding plunger, cover board and corresponding accessory on shell in the case where runner is arranged symmetrically and is adapted to
Property change, you can formed multipe plunger pump.Single plunger pump, which reduces to configure accordingly and carry out adaptability on the basis of duplex plunger pump, to be changed
It is dynamic.
In addition, capacity eccentric bearing replacement can be used in base bearing 7, eccentric bushing 8, it also can be used and process eccentric part in drive shaft 9
Divide and replace eccentric bushing 8, can so reduce amount of parts, improves reliability, can be selected according to actual needs.
When specific works, expects pipe is tapped into feed inlet in outside, connects pressure inlet to boost port, external pressure is in 0.05Mpa
Above working medium flow to feed inlet, and supercharging working medium then can be obtained from boost port.Specifically operating principle is：When eccentric stiffener pushes away
When dynamic plunger is moved into cavity, cavity internal pressure increases, and feed check valve is closed under the action of the pressure difference of both sides；When pressure is held
When up to supercharging check valve both sides of continuing rising pressure difference is more than supercharging unidirectional valve opening pressure, supercharging check valve is opened, and is provided to outside
High-pressure fluid working medium.When eccentric stiffener is moved far from cavity, under the action of the spring, it is separate together that plunger will follow eccentric wheel closely
Cavity and move, cavity internal pressure reduce, supercharging check valve closed under the action of the pressure difference of both sides；When pressure be decrease continuously into
When expecting that check valve both sides pressure difference is more than feed check valve Opening pressure, feed check valve is opened, and outer low pressure fluid working substance enters
In cavity.
Claims (10)
1. a kind of corrosion-resistant eccentric wheel pump, including the pump housing (1), be mounted on the pump housing (1) cover board (6), be set in the pump housing (1)
Eccentric stiffener and the plunger (2) coordinated with eccentric stiffener, cavity, the pump housing are formed between the pump housing (1) and cover board (6)
(1) feed check valve (4) being connected to the cavity and supercharging check valve (5) are equipped in, which is characterized in that the plunger (2)
One end be connected to cavity, the other end is installed in the pump housing (1) and is arranged with spring (3), and the spring (3) is limited in the pump housing
(1) in, the plunger (2) realizes reciprocating motion under the action of eccentric stiffener and spring (3).
2. the corrosion-resistant eccentric wheel pump of one kind according to claim 1, which is characterized in that the plunger (2) with eccentric machine
Ceramic gasket is arranged in the contact surface of structure, or uses bulk ceramics plunger.
3. the corrosion-resistant eccentric wheel pump of one kind according to claim 2, which is characterized in that the ceramic gasket uses Al2O3Pottery
Porcelain.
4. the corrosion-resistant eccentric wheel pump of one kind according to claim 1, which is characterized in that the plunger (2) is cylindrical ties
Structure, section is T-shaped, includes the Plunger skirt coordinated with eccentric stiffener and thinner plunger stem, and the spring (3) is sheathed on column
In stopper rod portion, the both ends of spring (3) are limited by the Plunger skirt of plunger (2) and the pump housing (1) respectively.
5. the corrosion-resistant eccentric wheel pump of one kind according to claim 1, which is characterized in that the eccentric stiffener includes eccentric bushing
(8), the base bearing (7) of eccentric bushing (8) outside and the drive shaft (9) across eccentric bushing (8) are set to.
6. the corrosion-resistant eccentric wheel pump of one kind according to claim 5, which is characterized in that the eccentric bushing (8) and be set to
The base bearing (7) of eccentric bushing (8) outside can be replaced with capacity eccentric bearing, and eccentric part can will be also processed in drive shaft (9) and is replaced partially
Heart set (8).
7. the corrosion-resistant eccentric wheel pump of one kind according to claim 1, which is characterized in that the pump housing (1), cover board (6), into
The part that material check valve (4), supercharging check valve (5) and plunger (2) are in contact with fluid uses material for POM, UPVC, PTFE
Or ABS plastic material is made, and can also be needed to use stainless steel, titanium alloy or ceramic material system according to corrosion-resistant environment and intensity
.
8. the corrosion-resistant eccentric wheel pump of one kind according to claim 1, which is characterized in that the feed check valve (4) and increasing
Check valve (5) is pressed to use magnet-type check valve, and magnet spool is coated for PTFE resistant materials with valve seat, and bullet can also be used
Spring formula check valve, spring use stainless steel or titanium alloy material according to corrosion-resistant environmental requirement.
9. the corrosion-resistant eccentric wheel pump of one kind according to claim 1, which is characterized in that the plunger (2), feed check valve
(4) or supercharging check valve (5) is installed in same sealing plane, and is sealed using sealing ring.
10. the corrosion-resistant eccentric wheel pump of one kind according to claim 1, which is characterized in that the plunger (2) can be used one
Only, two or more, single plunger pump, duplex plunger pump or multipe plunger pump are respectively constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810652768.5A CN108571432A (en) | 2018-06-22 | 2018-06-22 | A kind of corrosion-resistant eccentric wheel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810652768.5A CN108571432A (en) | 2018-06-22 | 2018-06-22 | A kind of corrosion-resistant eccentric wheel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108571432A true CN108571432A (en) | 2018-09-25 |
Family
ID=63572175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810652768.5A Pending CN108571432A (en) | 2018-06-22 | 2018-06-22 | A kind of corrosion-resistant eccentric wheel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108571432A (en) |
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| US5323742A (en) * | 1993-03-26 | 1994-06-28 | Fuji Oozx, Inc. | Shim structure in use for valve tappet of internal combustion engine |
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| CN107917055A (en) * | 2017-12-26 | 2018-04-17 | 浙江三浪润滑科技有限公司 | A kind of plunger mechanism |
| CN107939628A (en) * | 2017-12-26 | 2018-04-20 | 浙江三浪润滑科技有限公司 | A kind of bull radial plunger pump and its application method |
| CN108071569A (en) * | 2017-12-24 | 2018-05-25 | 福建省福安市力德泵业有限公司 | The low pulse high temperature plunger pump of intelligent micro constant current |
| CN208587264U (en) * | 2018-06-22 | 2019-03-08 | 上海坤释流体科技有限公司 | A kind of corrosion-resistant eccentric wheel pump |
-
2018
- 2018-06-22 CN CN201810652768.5A patent/CN108571432A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5323742A (en) * | 1993-03-26 | 1994-06-28 | Fuji Oozx, Inc. | Shim structure in use for valve tappet of internal combustion engine |
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