CN203584749U - Mechanical automatic oil supplementing device for membrane pump - Google Patents
Mechanical automatic oil supplementing device for membrane pump Download PDFInfo
- Publication number
- CN203584749U CN203584749U CN201320739138.4U CN201320739138U CN203584749U CN 203584749 U CN203584749 U CN 203584749U CN 201320739138 U CN201320739138 U CN 201320739138U CN 203584749 U CN203584749 U CN 203584749U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- membrane
- face
- diaphragm
- automatic oil
- 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.)
- Expired - Lifetime
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 17
- 230000001502 supplementing effect Effects 0.000 title abstract 4
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 238000012938 design process Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 11
- 239000003921 oil Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Abstract
The utility model relates to a mechanical automatic oil supplementing device for a membrane pump in a fluid conveying device. The mechanical automatic oil supplementing device is formed by a membrane cavity, a membrane, a limiting baffle, a limiting spring, a valve seat and a valve element in a combined mode, the membrane cavity and the valve seat are of a split structure and are tightly connected with an oil cylinder body of the membrane pump through four bolts, meanwhile, a third O-shaped sealing ring is additionally arranged on the outer circle of the valve seat to carry out sealing, a first O-shaped sealing ring and a first rectangular sealing ring are additionally arranged on the end face of the valve seat to carry out sealing, and the end face of the valve seat and the end face of the valve element are sealed through a second O-shaped sealing ring. According to the mechanical automatic oil supplementing device, in the design process of the membrane cavity of the membrane pump, the membrane cavity and the valve seat are designed to be of the split structure and tightly connected with the oil cylinder body through the four M bolts, meanwhile, the sealing rings are additionally arranged on the outer circle and the end face of the valve seat, due to the fact that the differential pressure borne by the valve seat in the membrane cavity is zero and is the same as that of the membrane, the outer circle and the end face are reliably sealed, the small valve seat is accordingly changed into an easily-damaged part, installation and replacement are easy and convenient to achieve, and the design cost of the pump is greatly reduced.
Description
Technical field
The utility model patented technology relates to the diaphragm pump of industry conveying sewage, emulsified liquid, high temperature and the high-corrosion mediums such as oilfield exploitation, non-ferrous metal hydrometallurgy, Coal Chemical Industry.Reciprocating hydraulic diaphragm pump is all being used in domestic petroleum and coal chemical industry, all kinds of nonferrous metals ore and thermal power plant, by diaphragm element, conveying slurry is all isolated in to medium runner side, plunger (piston) parts are under hydraulic oil works, thereby greatly extended the life-span of Sealing, but as the barrier film of carrying deflection deformation and both sides unbalanced pressure, just certainly will become the easily damaged parts of pumping system, need frequently change.Maintenance exceedes approximate " 0 " value every both sides differential pressure of membrane, is the key of barrier film reliable operation.And Design and implementation diaphragm pump mechanical type automatic makeup, displacement configuration are the keys that guarantees pump safety, reliable and economical operation.
Background technique
At present, traditional small flow diaphragm pump is in fluid power terminal membrane chamber design, and its mechanical type automatic makeup, discharge equipment cut down core, postive stop baffle, exhaust by diaphragm cavity, oil cylinder, barrier film, repairing and cut down etc. and to form, and its repairing valve seat and diaphragm cavity are designed to one.When oil cylinder low on fuel, its pressure decreases, and at this moment barrier film cuts down repairing to open to realize repairing because being subject to force unbalance and to promote immediately postive stop baffle to oil cylinder Direction distortion.Because repairing is cut down core just as reciprocating motion of the pistons, so just easily make to cut down a hole wearing and tearing and become large, and then make automatically to control repairing inefficacy.Because repairing valve seat and film chamber are designed to one, so just making film forming chamber becomes easily damaged parts, has improved the operating cost of pump, simultaneously during replacement cost, effort.
Summary of the invention
The utility model object is a kind of diaphragm pump of design mechanical type automatic oil recharging device, to overcome existing recharging oil device, changes bothersome defect.
Diaphragm pump mechanical type automatic oil recharging device, is combined by diaphragm cavity, diaphragm membrane, postive stop baffle, limit spring, valve seat, spool, and its diaphragm cavity is Split type structure with valve seat and is closely connected with the cylinder body of diaphragm pump by 4 bolts; At the cylindrical of valve seat, by O-ring seals III, increase sealing simultaneously, at its end face, by O-ring seals I and rectangular seal I, increase sealing; O-ring seals II sealing for valve seat and spool end.
Between spool and diaphragm membrane, postive stop baffle is housed, on valve seat, overlaps limited location spring and head on postive stop baffle.
In diaphragm pump diaphragm cavity design process, diaphragm cavity 1 and valve seat 5 are designed to two body structures, and tighten and be connected with cylinder body by the bolt of 4 M6x45, at cylindrical and the end face of valve seat, increase sealing simultaneously, because valve seat is the same with barrier film in film chamber, the pressure reduction bearing is 0, and therefore cylindrical, end face seal are comparatively reliable.So just slight valve seat is converted into easily damaged parts, and installs, change more easy, greatly reduce the design cost of pump.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Figure number explanation: 1, diaphragm cavity 2, oil cylinder cylinder sleeve 3, O-ring seals I 4, rectangular seal I 5, valve seat 6, limit spring 7, spool 8, O-ring seals II 9, postive stop baffle 10, screw M6 × 45 11, O-ring seals III 12, barrier film.
Embodiment
(1) main structure summary (see photo):
This structure is combined by parts such as diaphragm cavity 1, diaphragm 12, postive stop baffle 9, limit spring 6, valve seat 5, spool 7, seal rings 3,4,11, and according to the structure of diaphragm and size determine successively above-mentioned parts structure and size, wherein repairing is cut down assembly and is tightened on cylinder body by the countersunk screw of 4-M6x45, and adopts end face O-ring seals to seal.
(2) cardinal principle summary:
Diaphragm cavity and Fill valve component design are two body structures, increase sealing at cylindrical and the end face of valve seat 5 simultaneously, and because valve seat 5 is the same with barrier film 12 in film chamber, the pressure reduction bearing is " 0 ", and therefore cylindrical, end face seal are comparatively reliable.So just slight valve seat 5 is converted into easily damaged parts, and installs, change more easy, greatly reduce the design cost of pump.
The scheme that realizes above-mentioned purpose is:
1) according to diaphragm physical property, determine diaphragm cavity structure and size (see photo);
2) according to diaphragm physical property, determine structure and the size of barrier film postive stop baffle, valve seat, spool;
3) according to valve seat, be identified for the size of seal ring 3,4,11 of sealing;
The feature of such scheme is:
The design that this structure repairing is cut down, has realized the object of automatic repairing, again easily damaged parts has been carried out to structure conversion, has reduced the cost of pump operation, and repairing is cut down unit replacement and reached rapid and convenient, reduces operator's labor intensity.In radial position and end face design two seals, guaranteed the reliable of sealing simultaneously.Simultaneously limiting board be arranged so that barrier film is in movement process, by promoting postive stop baffle, open oil recharging valve core and realize automatic makeup functional oil.The spacing spring that cuts down, can reduce on the one hand the impact force of spool 7 movement processes, can limit on the other hand barrier film suction journey time amount of deformation, and then life-span of improving barrier film.
Claims (2)
1. diaphragm pump mechanical type automatic oil recharging device, by diaphragm cavity (1), diaphragm membrane (12), valve seat (5), spool (7), combined, it is characterized in that diaphragm cavity (1) and valve seat (5) are Split type structure and are closely connected with the cylinder body (2) of diaphragm pump by four bolts (10); At the cylindrical of valve seat (5), by O-ring seals III (11), increase sealing simultaneously, at its end face, by O-ring seals I (3) and rectangular seal I (4), increase sealing; O-ring seals II (8) sealing for valve seat (5) and spool (7) end face.
2. diaphragm pump according to claim 1 mechanical type automatic oil recharging device, is characterized in that, between spool (7) and diaphragm membrane (12), postive stop baffle (9) is housed, and valve seat (5) upper cover limited location spring (6) heads on postive stop baffle (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739138.4U CN203584749U (en) | 2013-11-19 | 2013-11-19 | Mechanical automatic oil supplementing device for membrane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739138.4U CN203584749U (en) | 2013-11-19 | 2013-11-19 | Mechanical automatic oil supplementing device for membrane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584749U true CN203584749U (en) | 2014-05-07 |
Family
ID=50582681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320739138.4U Expired - Lifetime CN203584749U (en) | 2013-11-19 | 2013-11-19 | Mechanical automatic oil supplementing device for membrane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584749U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628227A (en) * | 2020-11-19 | 2021-04-09 | 上海顺子机械制造有限公司 | Limiting valve |
-
2013
- 2013-11-19 CN CN201320739138.4U patent/CN203584749U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628227A (en) * | 2020-11-19 | 2021-04-09 | 上海顺子机械制造有限公司 | Limiting valve |
| CN112628227B (en) * | 2020-11-19 | 2022-11-18 | 上海威弗德机械(集团)有限公司 | Limiting valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |