CN103688055A - Diaphragm for conveying media - Google Patents
Diaphragm for conveying media Download PDFInfo
- Publication number
- CN103688055A CN103688055A CN201280032790.0A CN201280032790A CN103688055A CN 103688055 A CN103688055 A CN 103688055A CN 201280032790 A CN201280032790 A CN 201280032790A CN 103688055 A CN103688055 A CN 103688055A
- Authority
- CN
- China
- Prior art keywords
- work film
- film
- work
- axle collar
- support
- 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.)
- Granted
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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
- 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
Abstract
The invention relates to a working diaphragm (14) for the volumetric conveying of a fluid. In the installed state (28), the working diaphragm (14) is received between components (30, 38). The working diaphragm (14) is connected to an actuator (10, 12) for carrying out conveying strokes. The working diaphragm (14) is stabilized by a supporting element (18, 54) in the elastic region (26).
Description
Background technique
In transmission equipment, for example, for transmitting the membrane pump of working medium, work film is mainly used elastic material to make.Utilize described transmission equipment, especially membrane pump, can transmit for example work materials/auxiliary material or working medium, for example as the reducing agent of watery urea liquid, described watery urea liquid in exhausted gas post-processing system for reducing the NO of waste gas
xcomposition.
Yet the work film of mainly making with elastic material is limited in for the low pressure range of about 6bar at the most.In principle, the object of this work film is can be oscillatorily and produce constantly low pressure for drawing or for transmitting the alternation of the pressure of volume by connecting the mechanical component be connected with actuator.
The work film for this reason using is generally by backing plate and housing locking and to external sealed.
From the DE41 known this work film of 19 228C2 and working principle thereof.For fear of proofreading and correct under pressure alternation condition, according to the technological scheme of DE41 19 228C2, propose, (pivotable) region of the elasticity of described work film, motion applies prestressing force by cushioning add ons.Especially, use the support element of being made by foamed material, to cushion described work film, form the natural vibration of noise.
In order to carry out transmitting moving, described work film must have the elastic region being out of shape when carrying out transmitting moving.Yet this elastic region to described work film has proposed very high mechanical requirement, and only there is limited working life.In addition, when there is pressure difference, the elastic region of described work film is heaved as balloon, thereby makes described transmission volume depend on pressure.
Summary of the invention
The present invention proposes, and exists with the stable region of support element on the work film for volume transmitting fluid medium, and described region makes described thin flexible film distortion and when transmission stroke, occurs that the highest mechanical load, described work film are constructed to dish type roughly.
The work film that utilizes described support element can local strengthening to use, and thereby make it be applicable to higher working pressure.The film of working described in avoiding particularly when the higher operating pressure by described strengthening occurs that balloon-like is out of shape.This distortion makes the stereomutation by the component space of described work film gauge, and thereby affects transmission quantity.In addition by using support element, obviously extend the working life of described work film.
The stability of described work film can further be improved, and wherein, the stability of described work film is additionally strengthened by metal surface sclerosis, fiber and/or fabric face sclerosis.
According to support element of the present invention, be embodied as in one embodiment support disc.
At of the present invention another, implement in modification, described support element is embodied as supporting structure mushroom or Tulip shape.
In an advantageous manner, by described support disc or support the axle collar by use, to work film, especially below the elastic region of described film, use and be used to stable strengthening part.Described support disc or support that the manufactured materials of the axle collar can be metallic material, plate for example, rare metal alloy steel or plastics, for example thermoplastic.In the to-and-fro motion of described work film, when pressure increases, component space is constant large, and the maintenance of the volume of described component space is equal, because described support disc has stoped the distortion of soft elastic part.
The film proposing according to the present invention is by support element, support disc or support the axle collar for example, and supporting and be clamped in two parts, between housing parts and intermediate plate.The radial seal projection that the sealing of described work film can consist of the fringe region at described work film realizes.In order to make described elastic material expand when temperature improves, utilize in the present invention the work film of support element support to there is expansion space.This expansion space is arranged in an advantageous manner between seal convexity and separation rib and can makes described elastic material expand when temperature rising and receiver media.In addition, on the component space top of described film, the upside at it arranges an additional volume in an advantageous manner, to guarantee the expansion space of the material of described work film here.
Described support element, support disc or support the axle collar for example, can be extruded, screw thread is tightened, weld or also can be bonded.Described support element is expressed to from below on armature or piston, at its upside, is described film, and therefore needn't be injected in rubber material or be arranged in component space.Got rid of thus and in the layout being conventionally arranged in component space, occurred sealing interruption, described sealing is interrupted causing forcing to leak or damage.A part for actuator described in described armature or piston, to-and-fro motion utilizes described actuator produce and be delivered on described work film.
Preferably, the edge of described support disc is by rounding, and wherein, the radius of described circle is chosen as described work film is launched on radius by described armature or piston when to-and-fro motion.
In a favourable enforcement modification, on downside, support the support element of described film to allow to be constructed to support the axle collar.The enough metallic material of this parts energy, for example, to rush curved technology manufacture.The advantage of the described support axle collar is mainly to have improved installation, because the expansion of pliable and tough wall is possible.In the wall region of the described support axle collar, be provided with additional gap, described installing force can change.In addition, this has formed in the inner side of described Tulip shape support element the additional embossing that is arranged in radius region has been set, and the additional hardening of the face of the pressure that is therefore absorbed.
According to the present invention, the feature of the work film of proposition is especially, it can use under the situation of pressure >=6bar, and especially when for automotive field, has long working life.It can carry out volume transmission, thereby can save pressure transducer.By by support element,, there is not above-mentioned balloon effect, especially when high temperature and high pressure in support disc or support the work film of axle collar support to allow to obtain not relying on the transmission performance of temperature for example.
By the rolling radius arranging on support disc, described film clings on described support disc by described armature in whole to-and-fro motion.Thereby obtain described stabilization in each stage of described motion.
Additionally, described work film allows to strengthen by introducing metal surface sclerosis, fiber and/or fabric face sclerosis.This has further improved the resistance to pressure of described film, and the working life of the film of working described in significant prolongation.
The work film that utilization proposes according to the present invention can be realized transmission volume and keep equating, does not rely on expansion and the temperature impact of described thin-film material.Equally, described transmission volume reduces the dependence of pressure.
Accompanying drawing explanation
Describe below with reference to the accompanying drawings the present invention in detail, wherein:
Fig. 1 illustrates the work film of supporting by receiving the support element (here with disk-form) of armature;
Fig. 2 is illustrated in the work film of being supported by support element under the state being installed between housing and intermediate plate;
Fig. 3 illustrates the work film by supporting that the axle collar is supported;
Described in illustrating, Fig. 4 is provided with the support axle collar in embossing and gap from the perspective view of downside observation;
Described in illustrating, Fig. 5 is provided with the support axle collar of embossing from the reproduction view of downside observation; With
Fig. 6 illustrates the rating curve of general thin or volume transmission film.
Embodiment
The work film that the plate-like support element that is subject to being received on armature shown in Figure 1 is supported.
Fig. 1 illustrates the work film 14 on the armature head 12 that utilizes side recessed 16 to be received in securely armature 10.Connection between work film 14 and the armature head 12 of armature 10 can for example be undertaken by sulfuration.Armature 10 is delivered to to-and-fro motion on work film 14, and work film 14 is distortion in elastic region 26 by to-and-fro motion.For stable operation film 14, support disc 18 is received on armature 10.Connection between armature 10 and support disc 18 by extruding connect, be welded to connect, bonding connection and/or 20 realizations that are threaded.The edge of support disc 18 is provided with rolling radius 48.By the rolling radius 48 on support disc 18, film 14 is close on support disc 18 by armature 10 in whole to-and-fro motion process.Thereby obtain described stabilization in each stage of described motion.The edge 22 of work film 14 is reinforced and surrounds recess 24.
In this and other embodiment, work film 14 allows additionally by introducing metal surface sclerosis, fiber and/or fabric face sclerosis, to strengthen.This has further improved the resistance to pressure of work film 14 and significant prolongation the working life of work film 14.
Fig. 2 shows the work film of being supported by dish type support element under installment state.
Fig. 2 illustrates work film 14 and is assemblied in the state 28 between housing parts 31 and intermediate plate 30, and work film 14 is received on the armature head 12 of armature 10 securely by side recessed 16.Support disc 18 is received on armature 10.Armature 10 imports in housing parts 31 by opening 51.Housing parts 31 also has pond slotted recess 52, for receiving adequate space and the cavity 50 of support disc 18.The downside 36 of work film 14 abuts on the supporting surface 38 of housing parts 31.Intermediate plate 30 is arranged in work film 14 tops.The margo 22 of work film 14 is as seal convexity 44, and with the separation rib 46, intermediate plate 30 and the recess 24 gauge expansion spaces 40 that are arranged on intermediate plate 30.Owing to having received, the medium transmitting expands work film 14 or because temperature rising is stretched, additional volume receives by expansion space 40.The upside 34 of separation rib 46, work film 14 and intermediate plate 30 are in composed component space, top or the stroke volume 32 of work film 14.The size of component space 32 and cavity 50 adapts to the needed stroke of armature 10 or needed transmission volume.Described transmission volume almost remains unchanged when temperature and/or pressure variation.By utilizing, support disc 18 is stable to be made to receive distortion expansion space 40, that pressure causes and reduces in the thermal expansion of work film 14.
Another embodiment of the present invention shown in Fig. 3, wherein, described work film is by supporting the axle collar to support.
Fig. 3 illustrates the work film 14 on the armature head 12 that utilizes side recessed 16 to be received in securely armature 10.When armature 10 to-and-fro motion, work film 14 is out of shape in elastic region 26.For stable operation film 14, support that the axle collar 54 is arranged on armature 10.Support that the axle collar 54 is preferably connected and is fixed by pressure, when pressing connection, support the flange 62 extruding armature 10 of the axle collar 54.The position of the support axle collar 54 is chosen as elastic region 26 downsides 36 of work film 14 is abutted in the support side 64 of supporting the axle collar 54.The edge 22 of work film 14 is reinforced, and surrounds recess 24, as above-mentioned embodiment variant.
Shown in Fig. 4, be provided with the support axle collar in embossing and gap from the perspective view of downside observation.
Fig. 4 illustrates and supports the axle collar 54 with the perspective view of observing from downside.Supporting surface 64 is downward lateral bend in the region at edge 66.Supporting the axle collar 54 middle parts, supporting surface 64 with large curve transition in flange 62.The size of bending radius is positioned at the thickness range of described material.Flange 62 is constructed such that the support axle collar 54 with flange 62 can be connected with armature 10 by extruding.Support that the axle collar 54 is oriented to make it from below, to push away the downside 37 of armature head 12 and support performance film 14 here.
The described support axle collar preferably forms by rushing curved technology.This allows the described support axle collar to adjust flexibly the wall expansion of flange 62.Pressing-in force is preferably arranged in from flange 62 to supporting surface 64 and/or the transition region of flange 62 and is further changed by making to unload gap 58.In the embodiment variant shown in Fig. 4, arranged that unloading gap 58,58, two, three unloading gaps forms hexagonal angle degree.According to needed pressing-in force, more or less unloading gap 58 also can be set.For make pressure from supporting surface 64 be delivered to better flange 62 and thereby be delivered on armature 10, strengthening embossing 56 preferred arrangements are in the transition region between flange 62 and supporting surface 64.In suitable embodiment, support the axle collar 54 to there are three strengthening embossing 56, be implemented as oval groove here.Three strengthening embossing 56 are arranged around flange 62, wherein, between two strengthening flanges, become hexagonal angle degree.Strengthening embossing 56 also can be embodied as other pattern, for example, be embodied as by the bending between supporting surface 64 and flange 62 and form straight groove.The strengthening embossing 56 of greater or lesser quantity equally also can be installed.
Fig. 5 illustrates and is provided with the support axle collar of embossing from the perspective view of downside observation.
Fig. 5 illustrates the another embodiment who supports the axle collar 54 with the perspective view of observing from downside.Support that the axle collar 54 has supporting surface 64, supporting surface 64 is downward lateral bend in the region at edge 66.Flange 62 is out of shape by the large bending of material at supporting surface 64 middle parts.In order to improve pressure, from supporting surface 64, be delivered to flange 62, in embodiment variant shown here, arrange three strengthening embossing 56 that are implemented as oval groove.For example above-described embodiment modification illustrates, according to the strengthening embossing 56 of other quantity and/or shape also can be set the requirement of component strength.
Shown in Fig. 6, use the characteristic curve of flow when thering is the pump of conventional film and using the pump with volume transmission film.
Fig. 6 illustrates the flow Q of flowing medium while using two kinds of membrane pumps about the comparison example of pressure p.Line 70 represents to have the pump curve of routine work film.Flow Q obviously declines along with the rising of pressure p.Line 68 represents to have according to the pump curve of volume transmission work film of the present invention.Flow Q increases with pressure the undesirable decrease reducing and obviously reduces.
Be equipped with the transmission equipment that is especially suitable as work materials/auxiliary material or working medium according to the membrane pump of work film of the present invention.By flow, depend on hardly pressure and temperature and saved expensively measuring flow and/or pressure.This transmission equipment is also applicable to medical technology purposes by stable flow.
Claims (13)
1. the work film (14) for volume transmitting fluid, described work film (14) is received between parts (30,38) and with actuator (10,12) and is connected under installment state (28), described actuator is used for carrying out transmission stroke, it is characterized in that
Described work film (14) is stable by support element (18,54) in elastic region (26).
2. work film according to claim 1 (14), is characterized in that, described work film (14) is used metal surface sclerosis, fiber and/or fabric face sclerosis to strengthen.
3. work film according to claim 1 and 2 (14), is characterized in that, expansion space (40) are arranged between described work film (14) and intermediate plate (30).
4. according to the work film (14) described in any one in claims 1 to 3, it is characterized in that, additional volume is arranged in the component space (32) on described work film (14) top.
5. according to the work film (14) described in any one in claim 1 to 4, it is characterized in that, described work film (14) has seal convexity (44).
6. according to the work film (44) described in any one in claim 1 to 5, it is characterized in that, described support element (18,54) is received on actuator armature (10) by pushing, weld, bond and/or being threaded.
7. according to the work film (14) described in any one in claim 1 to 6, it is characterized in that, described support element (18,54) is implemented as support disc (18).
8. work film according to claim 7 (14), is characterized in that, described support disc (18) has rolling radius (48) on edge.
9. according to the work film (14) described in any one in claim 1 to 6, it is characterized in that, described support element (18,54) is implemented as supports the axle collar (54).
10. work film according to claim 9 (14), is characterized in that, the described support axle collar (54) has at least one strengthening embossing (56).
11. according to the work film (14) described in claim 9 or 10, it is characterized in that, the described support axle collar (54) has at least one unloading gap (58).
12. according to the work film (14) described in any one in claim 9 to 11, it is characterized in that, the described support axle collar (54) is made with latch plate or thermoplastic.
13. application at the membrane pump for volume transmitting fluid according to the work film (14) described in any one in claim 1 to 12.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011078499.3 | 2011-07-01 | ||
| DE102011078499A DE102011078499A1 (en) | 2011-07-01 | 2011-07-01 | Membrane for conveying media |
| PCT/EP2012/062016 WO2013004516A1 (en) | 2011-07-01 | 2012-06-21 | Diaphragm for conveying media |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103688055A true CN103688055A (en) | 2014-03-26 |
| CN103688055B CN103688055B (en) | 2017-02-15 |
Family
ID=46331315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280032790.0A Active CN103688055B (en) | 2011-07-01 | 2012-06-21 | Diaphragm for conveying media |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2726739B1 (en) |
| CN (1) | CN103688055B (en) |
| BR (1) | BR112013033838A2 (en) |
| DE (1) | DE102011078499A1 (en) |
| RU (1) | RU2620894C2 (en) |
| WO (1) | WO2013004516A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246376A (en) * | 2017-07-12 | 2017-10-13 | 浙江卡韦德新能源科技有限公司 | Diesel motor exhaust handles the diaphragm assembly of urea pump |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013212785A1 (en) | 2013-07-01 | 2015-01-08 | Robert Bosch Gmbh | Device for pressure compensation in delivery units for exhaust aftertreatment systems |
| DE102020111670A1 (en) | 2020-04-29 | 2021-11-04 | Prominent Gmbh | DOSING PUMP WITH HYGIENE-COMPLIANT CLAMPING ZONE |
| DE102020125567A1 (en) * | 2020-09-30 | 2022-03-31 | Ulman Dichtungstechnik Gmbh | Composite diaphragm for diaphragm pumps |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2295774A (en) * | 1941-02-26 | 1942-09-15 | Corydon Jeff | Pump valve |
| DE854464C (en) * | 1950-06-11 | 1952-11-04 | Friedrich Dr Goetz | Diaphragm pump |
| GB2140876B (en) * | 1983-06-02 | 1986-10-22 | Pienne Spa | Pump for supplying fuel to the carburettor of an internal combustion engine |
| FR2697589B1 (en) * | 1992-11-04 | 1994-12-23 | Milton Roy Dosapro | Diaphragm metering pump with mechanical actuation. |
| DE29620094U1 (en) * | 1996-11-20 | 1998-03-26 | Knf Neuberger Gmbh | Diaphragm pump |
| CN1704587A (en) * | 2004-06-01 | 2005-12-07 | 株式会社丰田自动织机 | Diaphragm pump |
| CN200975331Y (en) * | 2006-06-13 | 2007-11-14 | 上海化工研究院 | Mechanically-actuated diaphram pump |
| CN101235813A (en) * | 2007-01-31 | 2008-08-06 | 加德纳·丹佛·托马斯股份有限公司 | Positive displacement pump for transporting a fluid with automatic adaptation to the compressibility of the fluid |
| CN101251101A (en) * | 2008-03-10 | 2008-08-27 | 李建松 | Pressure regulating type stabilivolt membrane pump |
| EP2058517B1 (en) * | 2007-11-07 | 2010-09-08 | Idromeccanica Bertolini S.p.A. | Pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4119228C2 (en) | 1991-06-14 | 1995-04-13 | Knf Neuberger Gmbh | Diaphragm pump |
-
2011
- 2011-07-01 DE DE102011078499A patent/DE102011078499A1/en not_active Withdrawn
-
2012
- 2012-06-21 RU RU2014103287A patent/RU2620894C2/en active
- 2012-06-21 CN CN201280032790.0A patent/CN103688055B/en active Active
- 2012-06-21 WO PCT/EP2012/062016 patent/WO2013004516A1/en active Application Filing
- 2012-06-21 BR BR112013033838A patent/BR112013033838A2/en not_active Application Discontinuation
- 2012-06-21 EP EP12729121.9A patent/EP2726739B1/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2295774A (en) * | 1941-02-26 | 1942-09-15 | Corydon Jeff | Pump valve |
| DE854464C (en) * | 1950-06-11 | 1952-11-04 | Friedrich Dr Goetz | Diaphragm pump |
| GB2140876B (en) * | 1983-06-02 | 1986-10-22 | Pienne Spa | Pump for supplying fuel to the carburettor of an internal combustion engine |
| FR2697589B1 (en) * | 1992-11-04 | 1994-12-23 | Milton Roy Dosapro | Diaphragm metering pump with mechanical actuation. |
| DE29620094U1 (en) * | 1996-11-20 | 1998-03-26 | Knf Neuberger Gmbh | Diaphragm pump |
| CN1704587A (en) * | 2004-06-01 | 2005-12-07 | 株式会社丰田自动织机 | Diaphragm pump |
| CN200975331Y (en) * | 2006-06-13 | 2007-11-14 | 上海化工研究院 | Mechanically-actuated diaphram pump |
| CN101235813A (en) * | 2007-01-31 | 2008-08-06 | 加德纳·丹佛·托马斯股份有限公司 | Positive displacement pump for transporting a fluid with automatic adaptation to the compressibility of the fluid |
| EP2058517B1 (en) * | 2007-11-07 | 2010-09-08 | Idromeccanica Bertolini S.p.A. | Pump |
| CN101251101A (en) * | 2008-03-10 | 2008-08-27 | 李建松 | Pressure regulating type stabilivolt membrane pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246376A (en) * | 2017-07-12 | 2017-10-13 | 浙江卡韦德新能源科技有限公司 | Diesel motor exhaust handles the diaphragm assembly of urea pump |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013004516A1 (en) | 2013-01-10 |
| CN103688055B (en) | 2017-02-15 |
| EP2726739A1 (en) | 2014-05-07 |
| EP2726739B1 (en) | 2017-08-09 |
| BR112013033838A2 (en) | 2017-02-21 |
| DE102011078499A1 (en) | 2013-01-03 |
| RU2620894C2 (en) | 2017-05-30 |
| RU2014103287A (en) | 2017-01-10 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |