CN105927515A - S-type sealing-up and leak-proof structure for diaphragm of electromagnetic diaphragm metering pump - Google Patents
S-type sealing-up and leak-proof structure for diaphragm of electromagnetic diaphragm metering pump Download PDFInfo
- Publication number
- CN105927515A CN105927515A CN201610433490.3A CN201610433490A CN105927515A CN 105927515 A CN105927515 A CN 105927515A CN 201610433490 A CN201610433490 A CN 201610433490A CN 105927515 A CN105927515 A CN 105927515A
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- Prior art keywords
- diaphragm
- groove
- pump head
- diameter
- electromagnetic
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Classifications
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- 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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
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- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention relates to an S-type sealing-up and leak-proof structure for a diaphragm of an electromagnetic diaphragm metering pump. A second O-shaped ring groove and a first O-shaped ring groove are arranged in a staggered mode; the diameter of the second O-shaped ring groove is 1.05 times that of the first O-shaped ring groove; and the distance between the center line of the second O-shaped ring groove and the center line of the first O-shaped ring groove is 0.05 time the diameter of the diaphragm. The S-type sealing-up and leak-proof structure for the diaphragm is formed by the staggered arrangement of the first O-shaped ring groove and the second O-shaped ring groove; and the diaphragm can make axial and radial movements under the action of the first O-shaped ring groove and the second O-shaped ring groove. According to the S-type sealing-up and leak-proof structure for the diaphragm of the electromagnetic diaphragm metering pump, an electromagnetic metering pump fluid end diaphragm and a conventional sealing-up method are overturned; an original composite diaphragm is replaced with the PTFE diaphragm; and at the same time, the movable S-type sealing-up method is matched for use, original static sealing is changed to dynamic sealing, and therefore the service life of the diaphragm is prolonged to be more than ten years.
Description
Technical field
The present invention relates to measuring pump field, be specifically related to a kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure.
Background technology
Electromagnetic diaphragm formula measuring pump utilizes diaphragm to replace plunger, and diaphragm realizes moving back and forth under drive mechanism effect, completes liquid suction, discharge process.Electromagnetic diaphragm formula measuring pump, due to the buffer action of diaphragm, is structurally truly realized the isolation between measured fluid and drive mechanism.Diaphragm on market is crimped by tetrafluoro layer, canvas filler rubber layer and glue and forms, and canvas filler rubber layer wraps up an iron core piece simultaneously.Such as meter Dun Luo, Paasche phenanthrene reach, the well-known producer of general sieve name top grade all uses this type of diaphragm.Above-mentioned diaphragm not only complex process, the life-span is typically at about 5000 hours simultaneously.Constituting because diaphragm is composite, when electromagnetic diaphragm formula measuring pump is in the case of high-concentration acidic wastewater or alkaline environment high-frequency work continuously, it is easy to fatigue damage, degumming is the modal phenomenon of this type of diaphragm.
Tradition electromagnetic dosing pump diaphragm is formed by the splicing of mould glue by rubber layer, tetrafluoro layer, iron core.Owing to it is to glued joint with different materials to form, in various acid alkaline environments, rubber layer and the easy aging oxidation degumming of tetrafluoro layer, iron core and the most as easy as rolling off a log degumming of rubber layer.Tradition Electromagnetic diaphragm metering pump all uses and connects seat edge compression sealing means (face sealing) by pump head and pump head simultaneously, pump head is become an airtight cavity, the most back and forth made by plunger the deformation of diaphragm flexing agitate back and forth, realize inhaling night and the cyclic process of discharge opeing in conjunction with importing and exporting check valve opening and closing.The most such sealing means easily causes the some fatigue rupture of diaphragm flexing.The most traditional diaphragm is one weak link the most fatal of Electromagnetic diaphragm metering pump, must change at set intervals, and diaphragm cost is higher.
Summary of the invention
For problems of the prior art, it is an object of the invention to propose the technical scheme of a kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure.
Described a kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure, it is characterised in that: include pump head, pump head connect seat, pump head cavity, connect seat cavity, for isolating connection seat cavity and the diaphragm of pump head cavity, pump head is connected seat and fixes connection with pump head；Described diaphragm is PTFE, diaphragm arrangement is connected between seat with pump head at pump head, pump head and film contact position are provided with the first O groove, pump head connects seat and is provided with the second O groove with film contact position, second O groove and the first O groove are crisscross arranged, the diameter of the second O groove is 1.05 times of the first O groove diameter, and size is diaphragm diameter 0.05 times of the center line of distance between center line the first O groove of the second O groove；Being provided with the second O in described second O groove, the diameter of the second O and the diameter of the second O groove match, and are provided with the first O in the first O groove, and the diameter of the first O and the diameter of the first O groove match；The first described O and being crisscross arranged of the second O form the sealing structure of the S type to diaphragm, and diaphragm can axially and radially move under the first O and the second O effect.
Described a kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure, it is characterised in that: described first O and the second O are fluororubber O-type ring.
Described a kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure, it is characterised in that: described pump head and described pump head connect seat and connect by four bolts are fixing.
Described a kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure, it is characterised in that: described pump head upper end is provided with check valve, and pump head lower end is provided with lower check valve.
Described a kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure, it is characterised in that: described upper check valve and described lower check valve are non-return valve.
The diaphragm of the present invention is suppressed by PTFE, sintering, turning are made, can be compatible with big multi-chemistry, and the present invention, by portable S type Seal Design, makes measuring pump have better seal performance and more robust.
Wherein, second O groove and the first O groove are crisscross arranged, the diameter of the second O groove is 1.05 times of the first O groove diameter, and second size is diaphragm diameter 0.05 times of center line of distance between center line the first O groove of O groove, first O and being crisscross arranged of the second O form the sealing structure of the S type to diaphragm, and diaphragm can axially and radially move under the first O and the second O effect.
Using traffic requirement, diaphragm diameter to be generally 40 ~ 70 millimeters according to Electromagnetic diaphragm metering pump at actual condition, such as diaphragm diameter is 40 millimeters, then the first O groove and the second O groove center stagger away from for 2 millimeters.
During use, Electromagnetic diaphragm metering pump the most back and forth makes diaphragm produce axially by plunger, radial motion, the motion of diaphragm 4 causes the change of pump head cavity 3 volume, check valve and lower check valve is forced alternately to open and close, thus liquid is constantly sucked from lower check valve, discharge from upper check valve.When diaphragm 4 moves right, the pull effect to diaphragm due to the first O and the second O, make the external diameter of diaphragm diminish, move to center, it is to avoid the concentration of diaphragm upper stress point, so that diaphragm has longer service life.
The invention has the beneficial effects as follows:
The present invention has overturned electromagnetic measurement pump hydraulic end diaphragm and traditional sealing means, original compound diaphragm is substituted with tetrafluoro diaphragm, coordinate portable S type sealing means simultaneously, original static seal is changed into dynamic seal (packing), the service life of diaphragm is reached more than 10 years, almost identical with the electromagnetic dosing pump life-span, the consumable accessory of diaphragm is become conventional part, change without carrying out guarantee, also solve electromagnetic measurement pump hydraulic end leakage problem simultaneously, significantly reduce use and the maintenance cost of user, significantly widen Electromagnetic diaphragm metering pump and use field, make Electromagnetic diaphragm metering pump at high poison, inflammable, explosive, the use of the occasion such as volatile becomes a reality.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of diaphragm；
Wherein: 1-pump head, 2-pump head connects seat, and 3-pump head cavity, 4-diaphragm, 5-connects seat cavity, 6-the first O groove, 7-the second O groove.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is elaborated.
The present invention includes pump head 1, pump head connects seat 2, pump head cavity 3, connect seat cavity 5, for isolating connection seat cavity 5 and the diaphragm 4 of pump head cavity 3, pump head 1 is connected the fixing connection of seat 2 with pump head, diaphragm 4 is PTFE, diaphragm 4 is arranged on pump head 1 and is connected with pump head between seat 2, pump head and film contact position are provided with the first O groove 6, pump head connects seat and is provided with the second O groove 7 with film contact position, second O groove and the first O groove are crisscross arranged, the diameter of the second O groove is 1.05 times of the first O groove diameter, and second size is diaphragm diameter 0.05 times of center line of distance between center line the first O groove of O groove；Being provided with the second O in second O groove, the diameter of the second O and the diameter of the second O groove match, and are provided with the first O in the first O groove, and the diameter of the first O and the diameter of the first O groove match；First O and being crisscross arranged of the second O form the sealing structure of the S type to diaphragm, diaphragm is PTFE, diaphragm will not deform upon when imbibition or discharge opeing, when diaphragm 4 moves right, diaphragm can axially and radially move under the first O and the second O effect, the pull effect to diaphragm due to the first O and the second O, the external diameter making diaphragm diminishes, move to center, it is to avoid the concentration of diaphragm upper stress point, so that diaphragm has longer service life.
Be provided with the upper check valve connected with pump head cavity 3 in pump head 1 upper end, pump head 1 lower end is provided with the lower check valve connected with pump head cavity 3, and liquid enters pump head cavity 3 from lower check valve, discharges from upper check valve, and upper check valve and lower check valve are non-return valve.
Pump head 1 and pump head connect seat 2 and are bolted to connection, pass pump head by 4 bolts and pump head connects seat and support is spirally connected and makes the first O and the deformation of the second O compress diaphragm, owing to the first O and the second O centre-to-centre spacing stagger, allow for diaphragm and define the S type sealing of uniqueness.
During use, Electromagnetic diaphragm metering pump the most back and forth makes diaphragm 4 produce axially by plunger, radial motion, the motion of diaphragm 4 causes the change of pump head cavity 3 volume, check valve and lower check valve is forced alternately to open and close, thus liquid is constantly sucked from lower check valve, discharge from upper check valve.When diaphragm 4 moves right, diaphragm axially and radially moves, the pull effect to diaphragm due to the first O and the second O, makes the external diameter of diaphragm diminish, moves to center, it is to avoid the concentration of diaphragm upper stress point, so that diaphragm has longer service life.
Claims (5)
1. an Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure, it is characterised in that: include pump head, pump head connect seat, pump head cavity, connect seat cavity, for isolating connection seat cavity and the diaphragm of pump head cavity, pump head is connected seat and fixes connection with pump head；Described diaphragm is PTFE, diaphragm arrangement is connected between seat with pump head at pump head, pump head and film contact position are provided with the first O groove, pump head connects seat and is provided with the second O groove with film contact position, second O groove and the first O groove are crisscross arranged, the diameter of the second O groove is 1.05 times of the first O groove diameter, and size is diaphragm diameter 0.05 times of the center line of distance between center line the first O groove of the second O groove；Being provided with the second O in described second O groove, the diameter of the second O and the diameter of the second O groove match, and are provided with the first O in the first O groove, and the diameter of the first O and the diameter of the first O groove match；The first described O and being crisscross arranged of the second O form the sealing structure of the S type to diaphragm, and diaphragm can axially and radially move under the first O and the second O effect.
A kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure the most according to claim 1, it is characterised in that: described first O and the second O are fluororubber O-type ring.
A kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure the most according to claim 1, it is characterised in that: described pump head and described pump head connect seat and connect by four bolts are fixing.
A kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure the most according to claim 1, it is characterised in that: described pump head upper end is provided with check valve, and pump head lower end is provided with lower check valve.
A kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure the most according to claim 4, it is characterised in that: described upper check valve and described lower check valve are non-return valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610433490.3A CN105927515A (en) | 2016-06-18 | 2016-06-18 | S-type sealing-up and leak-proof structure for diaphragm of electromagnetic diaphragm metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610433490.3A CN105927515A (en) | 2016-06-18 | 2016-06-18 | S-type sealing-up and leak-proof structure for diaphragm of electromagnetic diaphragm metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105927515A true CN105927515A (en) | 2016-09-07 |
Family
ID=56830463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610433490.3A Pending CN105927515A (en) | 2016-06-18 | 2016-06-18 | S-type sealing-up and leak-proof structure for diaphragm of electromagnetic diaphragm metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105927515A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB700368A (en) * | 1951-01-10 | 1953-12-02 | Anton Ryba | Electromagnetic compressor or pump |
| DE4027920A1 (en) * | 1990-09-03 | 1992-03-05 | Karl Eickmann | High pressure aggregate for water delivery systems - makes use a membrane and seals between two cover plates |
| CN2577005Y (en) * | 2002-10-11 | 2003-10-01 | 北京汇知机电设备有限责任公司 | Symmetric balanced metal diaphragm compressor |
| CN201078325Y (en) * | 2007-07-31 | 2008-06-25 | 北京天高隔膜压缩机有限公司 | Diaphragm compressor with new type gas cylinder seal structure |
| CN202117896U (en) * | 2011-02-11 | 2012-01-18 | 贾念国 | Diaphragm pump diaphragm with double sealing rings at edge, and diaphragm pump thereof with double-sealing structure |
| CN202756203U (en) * | 2012-08-13 | 2013-02-27 | 北京天高隔膜压缩机有限公司 | Compressed air cylinder for diaphragm compressor |
| CN205779586U (en) * | 2016-06-18 | 2016-12-07 | 浙江爱力浦科技股份有限公司 | A kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure |
-
2016
- 2016-06-18 CN CN201610433490.3A patent/CN105927515A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB700368A (en) * | 1951-01-10 | 1953-12-02 | Anton Ryba | Electromagnetic compressor or pump |
| DE4027920A1 (en) * | 1990-09-03 | 1992-03-05 | Karl Eickmann | High pressure aggregate for water delivery systems - makes use a membrane and seals between two cover plates |
| CN2577005Y (en) * | 2002-10-11 | 2003-10-01 | 北京汇知机电设备有限责任公司 | Symmetric balanced metal diaphragm compressor |
| CN201078325Y (en) * | 2007-07-31 | 2008-06-25 | 北京天高隔膜压缩机有限公司 | Diaphragm compressor with new type gas cylinder seal structure |
| CN202117896U (en) * | 2011-02-11 | 2012-01-18 | 贾念国 | Diaphragm pump diaphragm with double sealing rings at edge, and diaphragm pump thereof with double-sealing structure |
| CN202756203U (en) * | 2012-08-13 | 2013-02-27 | 北京天高隔膜压缩机有限公司 | Compressed air cylinder for diaphragm compressor |
| CN205779586U (en) * | 2016-06-18 | 2016-12-07 | 浙江爱力浦科技股份有限公司 | A kind of Electromagnetic diaphragm metering pump diaphragm S type sealing and anti-leakage structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Luo Kaibin Inventor before: Luo Xianyao Inventor before: Yang Huafeng Inventor before: Han Shuo |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161018 Address after: Hangzhou City, Zhejiang Province, 310053 Binjiang District Puyan street sun Residence Internazionale 1 Building 5 unit 1802 room Applicant after: Luo Kaibin Address before: 317100, No. 2 Jin Yuan Road, Binhai New Town, sea town, three counties, Taizhou, Zhejiang Applicant before: ZHEJIANG AILIPU TECHNOLOGY CO., LTD. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160907 |