CN108561296A - A kind of diaphragm pump suitable for high inlet pressure with distribution pipeline - Google Patents
A kind of diaphragm pump suitable for high inlet pressure with distribution pipeline Download PDFInfo
- Publication number
- CN108561296A CN108561296A CN201810011588.9A CN201810011588A CN108561296A CN 108561296 A CN108561296 A CN 108561296A CN 201810011588 A CN201810011588 A CN 201810011588A CN 108561296 A CN108561296 A CN 108561296A
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- China
- Prior art keywords
- diaphragm
- import
- outlet
- shunting
- current divider
- 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.)
- Pending
Links
- 230000008676 import Effects 0.000 claims abstract description 54
- 230000000740 bleeding effect Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008439 repair process Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 9
- 239000003921 oil Substances 0.000 description 8
- 230000006698 induction Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 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
- 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
- F04B43/06—Pumps having fluid drive
- F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
-
- 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
- F04B43/0009—Special features
- F04B43/0081—Special features systems, control, safety measures
-
- 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
- F04B49/22—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 by means of valves
- F04B49/24—Bypassing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention relates to a kind of diaphragm pumps suitable for high inlet pressure with distribution pipeline, including pump head, diaphragm is set in pump head, and the diaphragm side is oily side, and the other side is side medium, the oily side protection plate limited to diaphragm is provided in oily side, it is equipped with medium entrance and media outlet in the side medium of pump head, in the external import isocon of medium entrance, which connects current divider, shunting import check valve, the current divider connection shunting Outlet check valves are provided on import isocon.Compared with prior art, the present invention devises flow dividing structure between import check valve and pump head, and while medium enters in pump head, flow part more than needed is diverted in current divider, reduce the impact to protection plate when diaphragm shifts to diaphragm oil side protection plate, and the influence to driving end.Improve the applying working condition of pump, reduce influence of the bad working environments to pump service life, reduces the influence to production because of pump repair.
Description
Technical field
The present invention relates to a kind of diaphragm pump, more particularly, to it is a kind of with distribution pipeline be suitable for high inlet pressure every
Membrane pump.
Background technology
Diaphragm pump is a kind of form more special in positive displacement pump.It is to drive diaphragm by the variation of hydraulic fluid chamber internal volume
It moves forward and backward, realizes that pumping enters and be discharged liquid.
Diaphragm pump is mainly by driving end and fluid end two large divisions to form.The kind of drive is to pass through crosshead by crank mechanism
Connection, and plunger is driven to move reciprocatingly, when plunger moves reciprocatingly in the hydraulic fluid chamber of fluid end, the shape in hydraulic fluid chamber
Changing at volume, and then diaphragm is driven to move forward and backward, its driving form has machine driving, hydraulic drive and Pneumatic Transmission etc.,
Wherein widely used is hydraulic drive.The structure of diaphragm pump mainly by toggle, plunger, hydraulic fluid chamber, every
The compositions such as film, the pump housing, import check valve and Outlet check valves, wherein by crankshaft-link rod, the fluid machine of plunger and fluid end composition
Tool is one kind in reciprocating pump, similar to the type of drive of reciprocating pump.
When diaphragm pump work, toggle drives plunger reciprocating, plunger is in liquid under the driving of motor
When moving reciprocatingly in pumping cavity, the hydraulic oil of diaphragm oil side forms volume variation in hydraulic fluid chamber, and then before drive diaphragm
After move.
Because of the requirement of technological requirement and pumped (conveying) medium characteristic, many oil and chemical engineering process require process pump to have
Higher inlet pressure cannot take decompression to arrange in the higher operating mode of medium saturated vapor pressure to ensure that pumped (conveying) medium does not vaporize
It applies.Diaphragm pump is in induction stroke, and the pressure of diaphragm side medium is inlet pressure, and diaphragm oil side is atmospheric pressure, in entrance normal pressure,
Suction process diaphragm pressure at both sides balances；When inlet pressure increases, diaphragm medium lateral pressure will be above the pressure of diaphragm oil side
(pressure of normal conditions diaphragm oil side is atmospheric pressure), diaphragm pressure at both sides is uneven, can quickly be moved in high pressure effect lower diaphragm plate
To oily side protection plate, protection plate can be caused to be hit and split, while also influence whether that the repairing of driving end crosshead pin causes cross pin stuck,
Cause pump to shut down simultaneously frequent maintenance, influences normally to produce.Meanwhile the size designed according to pump plunger power, pump the highest of permission
Inlet pressure is also restricted, more than the damage that this limitation will cause driving end pieces.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind having distribution pipeline
The diaphragm pump suitable for high inlet pressure.
The present invention and is designed a kind of suitable with distribution pipeline to meet the requirement of high inlet pressure operating mode
Diaphragm pump structure for high inlet pressure.The inlet outlet pressure differential of valve is a parameter of valve through-current capacity, and pressure difference is high, valve through-current capacity
Compared with normal condition height, the present invention by rich flow shunt, reduces the impact to diaphragm oil side protection plate, and protection driving end ten
Prefix pin is not stuck, and then improves the influence under high inlet pressure operating mode to pump, meets production requirement.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of diaphragm pump suitable for high inlet pressure with distribution pipeline, including pump head, are arranged diaphragm in pump head,
The diaphragm side is oily side, and the other side is side medium, the oily side protection plate limited to diaphragm is provided in oily side, in Jie of pump head
Matter side is equipped with medium entrance and media outlet, and in the external import isocon of medium entrance, which connects current divider,
Shunting import check valve, the current divider connection shunting Outlet check valves are provided between import isocon and current divider.
Further, the medium entrance is connected with entrance sleeve, and the entrance sleeve connects import check valve.
Further, the media outlet is connected with Outlet check valves, and the Outlet check valves connection outlet is taken over.
Further, it is connected with air bleeding valve on the current divider.
Further, the import isocon is linked in sequence pipe fitting, shunting import check valve, pipe fitting, current divider.
Further, the current divider be linked in sequence pipe fitting, shunting Outlet check valves, pipe fitting, outlet collecting pipe, institute
Outlet collecting pipe is stated to connect with media outlet.
Further, the shunting import check valve, shunting Outlet check valves are pressure-control valve.
Adjustable shunting import check valve, current divider and pump outlet check valve are housed between current divider and pump inlet check valve
Between adjustable shunting Outlet check valves are housed, in high inlet pressure operating mode, pump in induction stroke, the sucking of pump inlet check valve
Medium, a part normally enter pump head, and when more than that can shunt import check valve setting pressure, shunting import check valve is opened,
Medium more than needed flows into current divider, and the gas in current divider, the medium in current divider are discharged equipped with air bleeding valve for current divider top
Discharge is according to working condition requirement, and the row of may be selected is to export pipeline, or arranges to specified pipeline, and the medium in current divider is single through shunting outlet
It is discharged to valve, shunting Outlet check valves can in advance adjust setting pressure, and different pipelines are discharged to according to working condition requirement.First
Kind discharge mode：Flow more than needed is discharged to outlet confluence through be linked in sequence pipe fitting, shunting Outlet check valves, pipe fitting of current divider
Pipe, outlet collecting pipe are connect with pump outlet check valve, and the medium in current divider converges into discharge connection, arranges to export pipeline.The
Two kinds of discharge modes：Flow more than needed is arranged that (follow-up pipeline is pressed to specified pipeline through current divider, shunting Outlet check valves by working condition requirement
Working condition requirement connects).The volume of current divider is designed according to the requirement of applying working condition, and shunting import check valve, shunting outlet are unidirectional
The setting of valve pressure is set according to the requirement of applying working condition.
Compared with prior art, special designing of the present invention is, shunting is devised between pump inlet check valve and pump head
Flow part more than needed is diverted in current divider by structure while medium enters in pump head, is reduced diaphragm and is shifted to diaphragm oil
To the impact of protection plate when the protection plate of side, and the influence to driving end.Improve the applying working condition of pump, reduces bad working environments and pump is used
The influence in service life reduces the influence to production because of pump repair.
The present invention is extended simultaneously by by flow shunt more than needed, playing the influence for improving pump intake high pressure to pumping the service life
Inlet high pressure uses limitation.
Description of the drawings
Fig. 1 is the diaphragm pump structure schematic diagram suitable for high inlet pressure with distribution pipeline in embodiment 1；
Fig. 2 is the diaphragm pump structure schematic diagram suitable for high inlet pressure with distribution pipeline in embodiment 2；
Fig. 3 is embodiment 1,2 interval membrane pump current dividers and the design parameter for being diverted into Outlet check valves.
Shown in figure label：1- pump heads, 2- diaphragms, 3- import check valves, 41- entrance sleeves, 42- discharge connections, 5- go out
Mouth check valve, 6- oil side protection plate, 7- import isocons, 8- pipe fittings, 91- shunt import check valve, and 92- shuntings outlet is unidirectional
Valve, 10- current dividers, 11- air bleeding valves, 12- export collecting pipe.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of diaphragm pump suitable for high inlet pressure with distribution pipeline, including pump head 1, in the pump head 1 setting every
Film 2,2 side of the diaphragm are oily side, and the other side is side medium, and the oily side protection plate 6 limited to diaphragm is provided in oily side, is being pumped
First 2 side medium is equipped with medium entrance and media outlet, in the external import isocon 7 of medium entrance, the import isocon 7 connection
Current divider 10 is provided with shunting import check valve 91, the connection shunting Outlet check valves of the current divider 10 on import isocon 7
92。
In the present embodiment, the medium entrance is connected with entrance sleeve 41, and it is unidirectional that the entrance sleeve 41 connects pump inlet
Valve 3.The media outlet is connected with Outlet check valves 5,5 connection outlet take over 42 of the Outlet check valves.The current divider 10
On be connected with air bleeding valve 11.
In the present embodiment, the import isocon 7 be linked in sequence pipe fitting 8, shunting import check valve 91, pipe fitting 8, point
Flow device 10.The current divider 10 be linked in sequence pipe fitting 8, shunting Outlet check valves 92, pipe fitting 8, outlet collecting pipe 12, it is described
Outlet collecting pipe 12 is connect with media outlet.
In the present embodiment, the shunting import check valve 91, shunting Outlet check valves 92 are pressure-control valve.
Adjustable shunting import check valve 91 is housed, current divider 10 is single with outlet between current divider 10 and import check valve 3
To adjustable shunting Outlet check valves 92 are equipped between valve 5, in high inlet pressure operating mode, pump in induction stroke, import check valve 3
The medium of sucking, a part normally enter pump head 1, when more than that can shunt the setting pressure of import check valve 91, shunt import list
It is opened to valve 91, medium more than needed flows into current divider 10, and 10 top of current divider is discharged equipped with air bleeding valve 11 in current divider 10
Gas, for the medium discharge in current divider 10 according to working condition requirement, the row of may be selected is to export pipeline, or arranges to specified pipeline, shunting
Medium in device 10 is discharged through shunting Outlet check valves 92.
The discharge mode of the present embodiment：Flow more than needed is linked in sequence pipe fitting 8, shunting Outlet check valves through current divider 10
92, pipe fitting 8 is discharged to outlet collecting pipe 12, and outlet collecting pipe 12 is connect with media outlet.The volume of current divider 10 is according to using
The requirement of operating mode designs, and shunting import check valve 91 shunts the setting of 92 pressure of Outlet check valves according to the requirement of applying working condition
Setting.
The present embodiment design parameter is with reference to figure 3：
Pump parameter：Diameter of plunger：25mm, length of stroke：25.4mm stroke speed：140spm.
Highest allows inlet pressure to be 6bar.Pressure difference is 6bar i.e. before and after import check valve.
Actually use operating mode：Inlet pressure 10bar.
Calculate as follows, it is 2.5L to be computed 10 volume of current divider, shunt import check valve 91 set Opening pressure as 6bar,
What shunting exported single-phase valve 9.2 sets pressure as 11.5bar (1.15 times of inlet pressure).
Embodiment 2
A kind of diaphragm pump suitable for high inlet pressure with distribution pipeline, including pump head 1, in the pump head 1 setting every
Film 2,2 side of the diaphragm are oily side, and the other side is side medium, and the oily side protection plate 6 limited to diaphragm is provided in oily side, is being pumped
First 2 side medium is equipped with medium entrance and media outlet, in the external import isocon 7 of medium entrance, the import isocon 7 connection
Current divider 10 is provided with shunting import check valve 91, the connection shunting Outlet check valves of the current divider 10 on import isocon 7
92。
In the present embodiment, the medium entrance is connected with entrance sleeve 41, and it is unidirectional that the entrance sleeve 41 connects pump inlet
Valve 3.The media outlet is connected with Outlet check valves 5,5 connection outlet take over 42 of the Outlet check valves.The current divider 10
On be connected with air bleeding valve 11.
In the present embodiment, the import isocon 7 be linked in sequence pipe fitting 8, shunting import check valve 91, pipe fitting 8, point
Flow device 10.
In the present embodiment, the shunting import check valve 91, shunting Outlet check valves 92 are pressure-control valve.
Adjustable shunting import check valve 91 is housed, current divider 10 is single with outlet between current divider 10 and import check valve 3
To adjustable shunting Outlet check valves 92 are equipped between valve 5, in high inlet pressure operating mode, pump in induction stroke, import check valve 3
The medium of sucking, a part normally enter pump head 1, when more than that can shunt the setting pressure of import check valve 91, shunt import list
It is opened to valve 91, medium more than needed flows into current divider 10, and 10 top of current divider is discharged equipped with air bleeding valve 11 in current divider 10
Gas, for the medium discharge in current divider 10 according to working condition requirement, the row of may be selected is to export pipeline, or arranges to specified pipeline, shunting
Medium in device 10 is discharged through shunting Outlet check valves 92.
The discharge mode of the present embodiment：Flow more than needed through current divider 10, shunting Outlet check valves 92 by working condition requirement arrange to
Specified pipeline (follow-up pipeline is connected by working condition requirement).The volume of current divider 10 is designed according to the requirement of applying working condition, is diverted into
Mouth check valve 91, the setting for shunting 92 pressure of Outlet check valves are set according to the requirement of applying working condition.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be the present invention's
Within protection domain.
Claims (7)
1. a kind of diaphragm pump suitable for high inlet pressure with distribution pipeline, including pump head (1), the setting in pump head (1)
Diaphragm (2), diaphragm (2) side are oily side, and the other side is side medium, and the oily side protection plate limited to diaphragm is provided in oily side
(6), medium entrance and media outlet are equipped in the side medium of pump head (2), which is characterized in that in the external import shunting of medium entrance
It manages (7), which connects current divider (10), and shunting import check valve is provided on import isocon (7)
(91), current divider (10) the connection shunting Outlet check valves (92).
2. a kind of diaphragm pump suitable for high inlet pressure with distribution pipeline according to claim 1, feature exist
In the medium entrance is connected with import check valve (3), import check valve (3) the connection entrance sleeve (41).
3. a kind of diaphragm pump suitable for high inlet pressure with distribution pipeline according to claim 1, feature exist
In the media outlet is connected with Outlet check valves (5), and Outlet check valves (5) connection outlet is taken over (42).
4. a kind of diaphragm pump suitable for high inlet pressure with distribution pipeline according to claim 1, feature exist
In being connected with air bleeding valve (11) on the current divider (10).
5. a kind of diaphragm pump suitable for high inlet pressure with distribution pipeline according to claim 1, feature exist
It is linked in sequence pipe fitting (8), shunting import check valve (91), pipe fitting (8), current divider in, the import isocon (7)
(10)。
6. a kind of diaphragm pump suitable for high inlet pressure with distribution pipeline according to claim 1, feature exist
It is linked in sequence pipe fitting (8), shunting Outlet check valves (92), pipe fitting (8), outlet collecting pipe in, the current divider (10)
(12), the outlet collecting pipe (12) connect with media outlet.
7. a kind of diaphragm pump suitable for high inlet pressure with distribution pipeline according to claim 1, feature exist
In the shunting import check valve (91), shunting Outlet check valves (92) are pressure-control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810011588.9A CN108561296A (en) | 2018-01-05 | 2018-01-05 | A kind of diaphragm pump suitable for high inlet pressure with distribution pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810011588.9A CN108561296A (en) | 2018-01-05 | 2018-01-05 | A kind of diaphragm pump suitable for high inlet pressure with distribution pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108561296A true CN108561296A (en) | 2018-09-21 |
Family
ID=63529577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810011588.9A Pending CN108561296A (en) | 2018-01-05 | 2018-01-05 | A kind of diaphragm pump suitable for high inlet pressure with distribution pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108561296A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412127A (en) * | 2020-05-18 | 2020-07-14 | 重庆水泵厂有限责任公司 | A nuclear grade reciprocating hydraulic diaphragm pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0816729A1 (en) * | 1996-07-03 | 1998-01-07 | Uraca Pumpenfabrik Gmbh & Co. Kg | Relief valve assembly |
| CN1191937A (en) * | 1997-02-28 | 1998-09-02 | 舒弗罗泵制造公司 | Pump with bypass valve |
| CN201155451Y (en) * | 2008-01-29 | 2008-11-26 | 重庆水泵厂有限责任公司 | Diaphragm for slurry pump and reciprocating type hydraulic slurry pump using same |
| CN201288653Y (en) * | 2008-09-18 | 2009-08-12 | 常州江南电力环境工程有限公司 | Pump head mechanism for large flow hydraulic barrier diaphragm metering pump |
| DE202011107552U1 (en) * | 2011-11-04 | 2012-01-16 | Kracht Gmbh | Pressure control device for liquid pumps |
| CN207761915U (en) * | 2018-01-05 | 2018-08-24 | 米顿罗工业设备（上海）有限公司 | The diaphragm pump suitable for high inlet pressure with distribution pipeline |
-
2018
- 2018-01-05 CN CN201810011588.9A patent/CN108561296A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0816729A1 (en) * | 1996-07-03 | 1998-01-07 | Uraca Pumpenfabrik Gmbh & Co. Kg | Relief valve assembly |
| CN1191937A (en) * | 1997-02-28 | 1998-09-02 | 舒弗罗泵制造公司 | Pump with bypass valve |
| CN201155451Y (en) * | 2008-01-29 | 2008-11-26 | 重庆水泵厂有限责任公司 | Diaphragm for slurry pump and reciprocating type hydraulic slurry pump using same |
| CN201288653Y (en) * | 2008-09-18 | 2009-08-12 | 常州江南电力环境工程有限公司 | Pump head mechanism for large flow hydraulic barrier diaphragm metering pump |
| DE202011107552U1 (en) * | 2011-11-04 | 2012-01-16 | Kracht Gmbh | Pressure control device for liquid pumps |
| CN207761915U (en) * | 2018-01-05 | 2018-08-24 | 米顿罗工业设备（上海）有限公司 | The diaphragm pump suitable for high inlet pressure with distribution pipeline |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412127A (en) * | 2020-05-18 | 2020-07-14 | 重庆水泵厂有限责任公司 | A nuclear grade reciprocating hydraulic diaphragm pump |
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Application publication date: 20180921 |
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