CN109229958A - The corrosion-resistant program-controlled syringe pump system of ultra trace metal impurities - Google Patents
The corrosion-resistant program-controlled syringe pump system of ultra trace metal impurities Download PDFInfo
- Publication number
- CN109229958A CN109229958A CN201810840075.9A CN201810840075A CN109229958A CN 109229958 A CN109229958 A CN 109229958A CN 201810840075 A CN201810840075 A CN 201810840075A CN 109229958 A CN109229958 A CN 109229958A
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- China
- Prior art keywords
- syringe
- rod
- pump system
- injector push
- syringe pump
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
- B65D83/005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container the piston or movable bottom being pulled upwards to dispense the contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2583/00—Containers or packages with special means for dispensing contents
- B65D2583/005—Dispensers provided with a replaceable cartridge, recharge or pouch located within the dispenser
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The corrosion-resistant program-controlled syringe pump system of ultra trace metal impurities, the present invention relates to fluid applications, and in particular to a kind of corrosion-resistant program-controlled syringe pump system.The syringe pump system is made of syringe and its driving stepper motor.System is made with fluid contact component of high molecular material (fluoro-containing plastic, polypropylene, polyphenylene sulfide, polyether-ether-ketone or polyethylene etc.) resistant to chemical etching.The system is at least made of the syringe in a channel, a driving stepper motor and a set of mechanical transmission component.Drive stepper motor by process control, to realize automatic operation.Metal parts used in system is closed in a corrosion-resistant high molecular material cabinet, is relatively isolated with external environment, metal parts is prevented to be corroded.
Description
Technical field
The present invention relates to fluid applications, and in particular to the note of a kind of resistant to chemical etching, ultra trace metal impurities, process control
Penetrate pumping system.
Background technique
Syringe pump system is widely used in analytical chemistry, environmental science, chemical industry, environmental protection, food, clinical medicine and life section
Etc. fields.The injection needle tube material of existing syringe pump has glass, quartz, ceramics, metal, plastics etc., and piston material has glass
Glass, ceramics, rubber etc..Some special fluid application fields (fields such as semiconductor, geochemistry, life science) require fluid
Equipment has the ability of resistance to extensive chemical corrosion (nitric acid, hydrochloric acid, sulfuric acid hydrofluoric acid etc.), while having ultra trace metal impurities, existing
Some syringe pumps are difficult to meet above-mentioned requirements.Mainly since glass, quartz, ceramics, metal are difficult to meet resistance to extensive chemical corrosion,
For example, hydrofluoric acid understands etching glass, ceramics, metal, and the metal impurities of trace can be released in extensive chemical corrosive medium；
Rubber piston can also be corroded in extensive chemical corrosive medium, while release the metal impurities of trace;
On the other hand, the metal parts exposure of the driving stepper motor and mechanical driving device of existing syringe pump system has corrosion
Property gas atmosphere in, be not only easy to be corroded, formed volatile metal compounds there is also potential trace metal is miscellaneous
Matter pollution.
Summary of the invention
It is above-mentioned to solve the present invention provides a kind of corrosion-resistant, ultra trace metal impurities, the syringe pump system of process control
Technical problem present in background technique.
The corrosion-resistant program-controlled syringe pump system of ultra trace metal impurities of the present invention mainly includes 7 parts: syringe, injection
Device syringe fixing sleeve, mechanical transmission component, driving stepper motor, stepper motor drive module, limiting photoelectric switch and sealing are outer
Shell.
Syringe: for absorption and injecting fluid.Injector syringe selects the high molecular material of resistance to extensive chemical corrosion (fluorine-containing
Plastics, polypropylene etc.) production；Syringe piston also selects resistance to extensive chemical to corrode and has the high molecular material of self-lubricating function
(fluoro-containing plastic, polypropylene or polyethylene etc.) production；The injector push-rod high score higher and resistant to chemical etching using mechanical strength
Sub- material (polyether-ether-ketone, polyphenylene sulfide or polytrifluorochloroethylene etc.) production.
Syringe needle fixing sleeve: it for fixing injector syringe, prevents injector syringe from moving up and down and prevents macromolecule
The deformation of material syringe, guarantees fluid injection precision.
Mechanical transmission component: for connecting injector push-rod and driving stepper motor, stepper motor movement is passed into note
Emitter push rod makes injector push-rod do precise motion up and down under stepper motor driving.
Drive stepper motor: for driving coupled injector push-rod to move up and down.
Limiting photoelectric switch: being fixed on the transmission parts of up and down motion, and moves together with transmission parts, to judge to infuse
Extreme position above and below emitter push rod, limitation injector push-rod are more than high-low limit position.
Stepper motor drive module: the hardware circuit and embedded driver moved by control stepper motor forms.
Sealing shell: said syringe, injector syringe housing, mechanical transmission component, driving stepper motor are used to support
With stepper motor drive module, while be also used for sealing machine transmission, stepper motor and stepper motor drive module metal zero
Component, so that it is isolated with corrosive media in environment.
Detailed description of the invention
Figure 1A and Figure 1B is respectively the front of the corrosion-resistant program-controlled syringe pump system of ultra trace metal impurities for four-way
And backside structure figure.
Fig. 2A and Fig. 2 B is respectively injector syringe fixing sleeve appearance and sectional structure chart.
Fig. 3 A and Fig. 3 B are injector push-rod external structure and sectional view.
Fig. 4 A and Fig. 4 B are oilless bearing external structure and sectional view.
Fig. 5 A, Fig. 5 B, Fig. 5 C, Fig. 5 D are respectively injector push-rod connecting base structure front elevation, top view, bottom view and back
Face figure.
Fig. 6 is straight line slide unit.
Fig. 7 is the sealing shell front elevation of the corrosion-resistant program-controlled syringe pump system of ultra trace metal impurities for four-way.
Description of symbols
In Figure 1A and Figure 1B, 1- injector syringe；2- injector syringe fixing sleeve；3- drain gas vent；4- stepper motor passes
Dynamic screw rod；5- straight line slide unit；6- injector push-rod attachment base；7- optoelectronic switch baffle；8- screw rod connector；9- stepper motor；
10- sealing shell；11- dry seal bearing；12- injector push-rod；13- or more limits groove type photoelectric switch；14- stepper motor
Driver.
In Fig. 2A and Fig. 2 B, 15- external screw thread.
In Fig. 3 A and Fig. 3 B, the prominent rib of 16- ring-type；17- disk；18- blind hole.
In Fig. 5 A, Fig. 5 B, 5C and 5D, 19- push rod card.
In Fig. 6,20- sliding block.
Specific embodiment
In order to be best understood from content described in the invention, system structure of the invention and working principle are made below detailed
Explanation.
High molecular material (the fluoro-containing plastic, polypropylene etc.) production that the injector syringe 1 of system is corroded by resistance to extensive chemical,
Outside is cased with injector syringe fixing sleeve 2, prevents injector syringe from moving up and down and high molecular material injector syringe deforms, guarantor
Demonstrate,prove fluid injection precision；Injector syringe fixing sleeve 2 is made by the higher high molecular material of mechanical strength, and thickness is thicker, with
Guarantee its mechanical strength；Injector syringe fixing sleeve 2 is that external screw thread 15(is as shown in Figure 2 A and 2 B), so that it screws in system
In sealing shell 11, the outer of injector syringe lower end is compressed when tightened, syringe is fixed on outside the sealing of system
In shell 11.
Injector push-rod is by self-lubricating function, the high molecular material (polytetrafluoroethyl-ne of higher, the resistance to extensive chemical corrosion of mechanical strength
Alkene PTFE or PFA etc.) it makes, structure is as shown in Figure 3A and Figure 3B.Injector push-rod upper end has cyclic annular prominent rib, size
Interference slightly than injector syringe internal diameter, to guarantee injector syringe and the good sealing performance of push rod seal.Injector push-rod
Lower end structure have a disk 17, connect with injector push-rod attachment base 6.There is a blind hole 18 inside injector push-rod.
High molecular material (PTFE or the polyether-ether-ketone that dry seal bearing 11 is corroded by self-lubricating function, resistance to extensive chemical
PEEK etc.) production, a fluororubber O shape circle is installed in internal diameter the inside, for reinforcing sealing function, structure such as Fig. 4 A and Fig. 4 B
It is shown.Syringe space is isolated dry seal bearing 11 with following stepper motor machine driving space.Dry seal bearing 11
There is drain gas vent 3 identical as the syringe pump system external world.
Injector push-rod attachment base 6 connects injector push-rod 12 and stepper motor drive lead screw 4, structure such as Fig. 5 A, figure
5B, Fig. 5 C, shown in Fig. 5 D.6 upper end of injector push-rod attachment base is connected with 12 lower end of injector push-rod；Push rod card 19 will be injected
12 lower end disk of device push rod locks；6 lower end of injector push-rod attachment base passes through feed screw nut and 4 phase of stepper motor drive lead screw
Even；Screw rod 4 passes through 6 center of attachment base and is connected with injector push-rod blind hole；The mountable optoelectronic switch gear in the left and right sides of attachment base 6
Plate 7, optoelectronic switch baffle 7 are moved with attachment base 6, when it shelters from limit groove type photoelectric switch 13 up and down, stepping electricity
Machine stops immediately.Entire injector push-rod attachment base 6 is mounted on the sliding block 20 of straight line slide unit 5.
9 shaft of stepper motor is connected by screw rod connector 8 with screw rod 4, and the circumference fortune into motor 9 passes to screw rod 4, is led to
The linear motion that feed screw nut is converted into injector push-rod attachment base 6 is crossed, and then injector push-rod 12 is pushed to move up and down.
Stepper motor driver 14 is mounted on the rear seal space of syringe pump system.Stepper motor driver 14 is by stepping
Motor driven hardware and embedded control software composition, control stepper motor movement.
Above-mentioned each unit structure is sealed in the high molecular material (poly- third of higher, the resistance to extensive chemical corrosion of a mechanical strength
Alkene PP, PFA, PEEK, PPS or polytrifluorochloroethylene PCTFE) sealing shell 11 in, to prevent corrosivity gas in external environment
The corrosion of body.
The corrosion-resistant program-controlled syringe pump system of ultra trace metal impurities proposed by the present invention, with strong chemical corrosion resistance macromolecule
Based on material, by novel, reasonable Design of Mechanical Structure, trace metal impurity under extensive chemical corrosive environment is realized
Fluid accurate injection, high, chemical corrosivity extremely strong fluid injection field can be required to be used widely in metal impurities.
The above description of this invention is illustrative and not restrictive, technical staff's understanding of this professional domain,
Many modifications, variation or equivalent can be carried out in the spirit and scope that claim limits to it, but they would fall within this hair
Bright protection scope.
Claims (10)
1. the corrosion-resistant program-controlled syringe pump system of ultra trace metal impurities of the present invention, feature include:
Syringe, syringe select high molecular material (such as fluoro-containing plastic, polypropylene) production of resistance to extensive chemical corrosion, syringe
Outer mounting of syringe syringe fixing sleeve guarantees that high molecular material syringe is indeformable, does not also move up and down, guarantee the injection of syringe
Volume accuracy；
Injector push-rod has self-lubricating function and the production of the high molecular material of preferable mechanical strength using the burn into of resistance to extensive chemical, and
Injector push-rod is made into blind hole stick；
The high molecular material that syringe and fluid contact component are all made of resistance to extensive chemical corrosion makes, and can corrode in extensive chemical and be situated between
It is used for a long time in matter, and has the advantages that ultra trace metal impurities；
Syringe is isolated by a dry seal bearing with following mechanical driving device, and dry seal bearing is by with resistance to strong
Chemical attack, self-lubricating function high molecular material constitute；Dry seal bearing has a drain gas vent to communicate with external；
Injector push-rod lower end is connected with injector push-rod attachment base upper end, and injector push-rod attachment base is mounted on straight line slide unit
On, injector push-rod attachment base lower end is connected with feed screw nut, and stepper motor screw rod passes through injector push-rod by feed screw nut
Attachment base is inserted into injector push-rod blind hole；
Stepper motor drives screw rod rotation, drives injector push-rod attachment base to move up and down in straight line slide unit by feed screw nut,
And then injector push-rod is driven to move up and down；
Stepper motor is controlled by driver hardware circuit and software program.
2. syringe pump system according to claim 1, which is characterized in that installation one is resistance to outside the high molecular material syringe
The injector syringe fixing sleeve of extensive chemical corrosion, injector syringe fixing sleeve are screwed in system sealing shell using helicitic texture.
3. the syringe pump system according to claim, which is characterized in that the injector push-rod uses the burn into of resistance to extensive chemical
There are self-lubricating function and the preferable high molecular material production of mechanical strength, injector push-rod is made into blind hole stick.
4. the syringe pump system according to claim, which is characterized in that space where the syringe and following mechanical biography
Space where dynamic device is relatively isolated by oilless bearing, and oilless bearing has the height of self-lubricating function using the burn into of resistance to extensive chemical
Molecular material production.
5. the syringe pump system according to claim, which is characterized in that the dry seal bearing has a drain exhaust
Hole with it is external identical.
6. the syringe pump system according to claim, which is characterized in that the injection putter lower end be designed to it is discoid, lead to
A pair of push rods card is crossed to be connected with injector push-rod attachment base.
7. the syringe pump system according to claim, which is characterized in that the injector push-rod and stepper motor silk
Bar is connected by an injector push-rod attachment base.
8. the syringe pump system according to claim, which is characterized in that the injector push-rod attachment base is designed to
Through-hole structure, stepper motor drive lead screw pass through in through-hole insertion injector push-rod blind hole.
9. the syringe pump system according to claim, which is characterized in that the stepper motor driver is mounted on system
The back side, and sealed with the shell that resistance to extensive chemical is corroded.
10. the syringe pump system according to claim, which is characterized in that the mechanical driving device and hardware circuit are close
It is enclosed in resistance to extensive chemical corrosion high molecular material capsul.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810840075.9A CN109229958B (en) | 2018-07-27 | 2018-07-27 | Program-controlled injection pump system for corrosion-resistant ultra-trace metal impurities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810840075.9A CN109229958B (en) | 2018-07-27 | 2018-07-27 | Program-controlled injection pump system for corrosion-resistant ultra-trace metal impurities |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109229958A true CN109229958A (en) | 2019-01-18 |
| CN109229958B CN109229958B (en) | 2021-05-18 |
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ID=65073110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810840075.9A Active CN109229958B (en) | 2018-07-27 | 2018-07-27 | Program-controlled injection pump system for corrosion-resistant ultra-trace metal impurities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109229958B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114688224A (en) * | 2022-04-08 | 2022-07-01 | 成都理工大学 | Corrosion-resistant full-automatic injection pump system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1236644A1 (en) * | 2001-02-28 | 2002-09-04 | Probitas Pharma, S.A. | Apparatus for filling containers for pharmaceutical uses and the like |
| CN201027611Y (en) * | 2007-04-30 | 2008-02-27 | 洪陵成 | High-tension ceramic syringe pump |
| CN102499787A (en) * | 2011-11-18 | 2012-06-20 | 陈凯 | Split type needle-free injection system used for animal injection |
| CN103032289A (en) * | 2012-12-28 | 2013-04-10 | 深圳市锦瑞电子有限公司 | Plunger pump and hematology analyzer with plunger pump |
| CN103182112A (en) * | 2011-12-30 | 2013-07-03 | 北京谊安医疗系统股份有限公司 | Base structure of injection pump |
| CN203299213U (en) * | 2013-06-17 | 2013-11-20 | 孙卫国 | Precise injection pump |
| CN103520805A (en) * | 2013-10-17 | 2014-01-22 | 杭州普昂医疗科技有限公司 | Injection device and injection method |
| CN107412910A (en) * | 2017-06-26 | 2017-12-01 | 江苏德尔福医疗器械有限公司 | Syringe pump |
-
2018
- 2018-07-27 CN CN201810840075.9A patent/CN109229958B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1236644A1 (en) * | 2001-02-28 | 2002-09-04 | Probitas Pharma, S.A. | Apparatus for filling containers for pharmaceutical uses and the like |
| CN201027611Y (en) * | 2007-04-30 | 2008-02-27 | 洪陵成 | High-tension ceramic syringe pump |
| CN102499787A (en) * | 2011-11-18 | 2012-06-20 | 陈凯 | Split type needle-free injection system used for animal injection |
| CN103182112A (en) * | 2011-12-30 | 2013-07-03 | 北京谊安医疗系统股份有限公司 | Base structure of injection pump |
| CN103032289A (en) * | 2012-12-28 | 2013-04-10 | 深圳市锦瑞电子有限公司 | Plunger pump and hematology analyzer with plunger pump |
| CN203299213U (en) * | 2013-06-17 | 2013-11-20 | 孙卫国 | Precise injection pump |
| CN103520805A (en) * | 2013-10-17 | 2014-01-22 | 杭州普昂医疗科技有限公司 | Injection device and injection method |
| CN107412910A (en) * | 2017-06-26 | 2017-12-01 | 江苏德尔福医疗器械有限公司 | Syringe pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114688224A (en) * | 2022-04-08 | 2022-07-01 | 成都理工大学 | Corrosion-resistant full-automatic injection pump system |
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| Publication number | Publication date |
|---|---|
| CN109229958B (en) | 2021-05-18 |
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