CN111550391A - Pneumatic diaphragm pump - Google Patents
Pneumatic diaphragm pump Download PDFInfo
- Publication number
- CN111550391A CN111550391A CN202010558963.9A CN202010558963A CN111550391A CN 111550391 A CN111550391 A CN 111550391A CN 202010558963 A CN202010558963 A CN 202010558963A CN 111550391 A CN111550391 A CN 111550391A
- Authority
- CN
- China
- Prior art keywords
- pump
- valve core
- air
- sides
- channel
- 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
Links
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 6
- 239000003208 petroleum Substances 0.000 description 3
- -1 printing and dyeing Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- F04B43/06—Pumps having fluid drive
- F04B43/073—Pumps having fluid drive the actuating fluid being controlled by at least one valve
- F04B43/0736—Pumps having fluid drive the actuating fluid being controlled by at least one valve with two or more pumping chambers in parallel
-
- 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
-
- 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
- F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
- F04B43/026—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber
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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
- 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
- F04B53/1002—Ball valves
-
- 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
- F04B53/109—Valves; Arrangement of valves inlet and outlet valve forming one unit
- F04B53/1092—Valves; Arrangement of valves inlet and outlet valve forming one unit and one single element forming both the inlet and outlet closure member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a pneumatic diaphragm pump, which comprises a pump shell, wherein two opposite sides of the pump shell are provided with a pump inlet and a pump outlet; a square-back channel is arranged in the pump shell and is respectively communicated with the pump outlet and the pump inlet, two ball valves distributed on two sides of the pump inlet are arranged in the channel, and two ball valves distributed on two sides of the pump outlet are arranged in the channel; a cavity is arranged in the pump shell and is communicated with the channel shaped like a Chinese character 'hui'; pump covers corresponding to the cavities are arranged on two sides of the pump shell; the pump body is fixedly arranged in the cavity, two symmetrical valve core seats are fixedly arranged in the pump body, and a valve core and an air inlet distribution body are fixedly arranged between the two valve core seats; the centers of the pump body, the valve core seat and the valve core are penetrated and provided with a connecting rod in a sliding way. The invention greatly reduces the amount of air leakage, reduces the use of air, saves energy, reduces cost and greatly reduces maintenance cost.
Description
Technical Field
The invention relates to the field of pumps, in particular to a pneumatic diaphragm pump.
Background
At present, in the industries of chemical industry, petroleum, printing and dyeing, medicine, food, electroplating and the like, the pneumatic diaphragm pump is widely applied to conveying liquids such as petroleum, chemical and the like, and various characteristics of the media require the pneumatic diaphragm pump to be resistant to corrosion, abrasion and leakage; the pneumatic diaphragm pump is mainly used for conveying toxic and harmful media, strong acid, strong alkali, strong corrosion, flammability and explosiveness, high viscosity and particle-containing media in the production flow of enterprises such as petroleum, chemical engineering, pharmacy, printing and dyeing, electroplating, food, environmental protection and the like.
The traditional diaphragm pump has high requirements on the machining and assembling precision of each part due to a plurality of parts, and has large air leakage and can consume more gas to cause energy waste when an air source is matched.
Disclosure of Invention
The invention aims to provide a pneumatic diaphragm pump, which solves the problems of the existing products.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pneumatic diaphragm pump comprises a pump shell, wherein a pump inlet and a pump outlet are arranged on two opposite sides of the pump shell; a square-back channel is arranged in the pump shell and is respectively communicated with the pump outlet and the pump inlet, two ball valves distributed on two sides of the pump inlet are arranged in the channel, and two ball valves distributed on two sides of the pump outlet are arranged in the channel; a cavity is arranged in the pump shell and is communicated with the channel shaped like a Chinese character 'hui'; pump covers corresponding to the cavities are arranged on two sides of the pump shell; the air-intake distribution valve is characterized in that a pump body is fixedly arranged in the cavity, two symmetrical valve core seats are fixedly arranged in the pump body, and a valve core and an air-intake distribution body are fixedly arranged between the two valve core seats; the centers of the pump body, the valve core seat and the valve core are penetrated and are provided with a connecting rod in a sliding way, and an adjusting sleeve is sleeved on the connecting rod; the two ends of the connecting rod are respectively fixedly connected with the centers of the two diaphragms, and the peripheries of the diaphragms are hermetically fixed on the pump cover.
Preferably, the valve core seat is provided with an air passage A and an air passage D, and the valve core is provided with a transverse air passage B and an air passage E, and a vertical air passage C and an air passage F; a first groove is formed in the middle of the adjusting sleeve, and two first bosses are symmetrically arranged on the adjusting sleeve on two sides of the first groove; the adjusting sleeves on the outer sides of the two first bosses are provided with the same second bosses, and the adjusting sleeves on the outer sides of the two second bosses are provided with the same third bosses; the height is reduced in sequence according to the first boss, the second boss and the third boss; the gas circuit C and the gas circuit F correspond to the first boss, and the gas circuit B and the gas circuit E correspond to the second boss.
Preferably, the air inlet distributor is arranged between the two valve core seats and sealed by an O-shaped sealing ring.
Preferably, the valve core is positioned between the air inlet distributing body and the valve core seat, and the air seal is sealed by adopting a Y-shaped sealing ring and a thin polytetrafluoroethylene sleeve.
Preferably, the connecting rod penetrates through the adjusting sleeve, and the connecting rod and the adjusting sleeve are sealed through an O-shaped sealing ring.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the beneficial effects that:
the invention only uses a valve core, an adjusting sleeve, a connecting rod and a gas distributing part, needs few parts, and relies on the position staggered relation between the adjusting sleeve and the valve core for opening and closing, thus the normal work of the pump can be realized only by processing the surface, the gas leakage amount is greatly reduced, the gas use is reduced, the energy is saved, the cost is reduced, and the maintenance cost is also greatly reduced.
Drawings
FIG. 1 is an overall schematic structural view of a first embodiment of the present invention;
FIG. 2 is a schematic structural view of a pump body according to a first embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the release sleeve of FIG. 1;
fig. 4 is an enlarged structural distribution diagram of the a-F gas paths in fig. 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1-3, an air operated diaphragm pump comprises a pump housing having a pump inlet 8 and a pump outlet 1 disposed on opposite sides of the pump housing. The pump is internally provided with a square-shaped channel 2 and a square-shaped channel 7, the channel 2 and the channel 7 are respectively communicated with the pump outlet and the pump inlet, the channel is internally provided with two ball valves 4 distributed on two sides of the pump inlet, and the channel is internally provided with two ball valves 3 distributed on two sides of the pump outlet. A cavity is arranged in the pump shell and communicated with the channel shaped like a Chinese character 'hui'. And pump covers corresponding to the cavities are arranged on two sides of the pump shell. The pump shell, the inlet and outlet of the pump, the ball valve and the pump cover are all in the prior art, so that the working principle and the connection relation belong to the prior art and are not described in detail.
A pump body 10 is fixedly arranged in the cavity, two symmetrical valve core seats 12 are fixedly arranged in the pump body 10, and a valve core 13 and an air inlet distributing body 9 are fixedly arranged between the two valve core seats 12. The centers of the pump body, the valve core seat and the valve core are penetrated and slidably provided with a connecting rod 6, and an adjusting sleeve 11 is sleeved on the connecting rod 6. The two ends of the connecting rod 6 are respectively fixedly connected with the centers of the two diaphragms 5, and the peripheries of the diaphragms 5 are hermetically fixed on the pump cover.
As shown in fig. 4, the valve core seat is provided with an air passage a and an air passage D, and the valve core is provided with an air passage B and an air passage E which are horizontal, and an air passage C and an air passage F which are vertical. The middle part of the adjusting sleeve 11 is provided with a first groove 111, and two first bosses 110 are symmetrically arranged on the adjusting sleeve at two sides of the first groove 111. The adjusting sleeves on the outer sides of the two first bosses 110 are provided with the same second bosses 112, and the adjusting sleeves on the outer sides of the two second bosses 112 are provided with the same third bosses 113. The height is reduced in sequence according to the first boss, the second boss and the third boss; the gas circuit C and the gas circuit F correspond to the first boss, and the gas circuit B and the gas circuit E correspond to the second boss. The air path A, the air path B, the air path C, the air path D, the air path E and the air path F are respectively independent and mutually connected, and the air inlet distribution body 9 is communicated with the air paths.
High-pressure gas enters the gas distributing body, when gas enters the gas path E, the valve core 13 moves leftwards, when the valve core moves to a proper position, gas enters the gas path A, the diaphragm on the left side inflates and expands to drive the connecting rod to move leftwards, and when the diaphragm moves to a proper position, the adjusting sleeve is driven to move leftwards. When the connecting rod moves to a proper position next to the inner part, the air path in the F air path direction is opened for exhausting, the air path in the E air path direction is closed, the air path B is opened for air intake, the air path C is closed, the air path A is opened for exhausting, the air intake in the D air path direction is opened for air intake, the diaphragm 5 on the right side is inflated, and the expansion drives the connecting rod to move rightwards. So far, first stroke round is accomplished, and pneumatic diaphragm pump accomplishes first imbibition and flowing back action, then repeats in cycles for the continuous imbibition flowing back of pneumatic diaphragm pump.
The specific seal design is as follows: the air inlet distributing body is arranged between the two valve core seats and sealed by an O-shaped sealing ring. The valve core is positioned between the air inlet distributing body and the valve core seat, and the air seal is sealed by adopting a Y-shaped sealing ring and a thin polytetrafluoroethylene sleeve. The connecting rod penetrates through the adjusting sleeve, and the connecting rod and the adjusting sleeve are sealed through an O-shaped sealing ring.
The invention only uses a valve core, an adjusting sleeve, a connecting rod and a gas distributing part, needs few parts, and relies on the position staggered relation between the adjusting sleeve and the valve core for opening and closing, thus the normal work of the pump can be realized only by processing the surface, the gas leakage amount is greatly reduced, the gas use is reduced, the energy is saved, the cost is reduced, and the maintenance cost is also greatly reduced.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A pneumatic diaphragm pump comprises a pump shell, wherein a pump inlet and a pump outlet are arranged on two opposite sides of the pump shell; a square-back channel is arranged in the pump shell and is respectively communicated with the pump outlet and the pump inlet, two ball valves distributed on two sides of the pump inlet are arranged in the channel, and two ball valves distributed on two sides of the pump outlet are arranged in the channel;
a cavity is arranged in the pump shell and is communicated with the channel shaped like a Chinese character 'hui';
pump covers corresponding to the cavities are arranged on two sides of the pump shell;
the air-intake distribution valve is characterized in that a pump body is fixedly arranged in the cavity, two symmetrical valve core seats are fixedly arranged in the pump body, and a valve core and an air-intake distribution body are fixedly arranged between the two valve core seats;
the centers of the pump body, the valve core seat and the valve core are penetrated and are provided with a connecting rod in a sliding way, and an adjusting sleeve is sleeved on the connecting rod; the two ends of the connecting rod are respectively fixedly connected with the centers of the two diaphragms, and the peripheries of the diaphragms are hermetically fixed on the pump cover.
2. The pneumatic diaphragm pump of claim 1, wherein the valve core seat is provided with an air passage A and an air passage D, and the valve core is provided with an air passage B and an air passage E which are transverse, and an air passage C and an air passage F which are vertical; a first groove is formed in the middle of the adjusting sleeve, and two first bosses are symmetrically arranged on the adjusting sleeve on two sides of the first groove; the adjusting sleeves on the outer sides of the two first bosses are provided with the same second bosses, and the adjusting sleeves on the outer sides of the two second bosses are provided with the same third bosses; the height is reduced in sequence according to the first boss, the second boss and the third boss; the gas circuit C and the gas circuit F correspond to the first boss, and the gas circuit B and the gas circuit E correspond to the second boss.
3. An air operated diaphragm pump according to claim 2 wherein the inlet manifold is disposed between the two valve core seats and sealed with an O-ring seal.
4. An air operated diaphragm pump according to claim 3, wherein the valve core is located between the air inlet distributor and the valve core seat, and the air seal is performed by using a Y-shaped seal ring and a PTFE thin sleeve.
5. An air operated diaphragm pump according to claim 2, wherein the coupling rod extends through the adjustment sleeve and is sealed from the adjustment sleeve by an O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010558963.9A CN111550391B (en) | 2020-06-18 | 2020-06-18 | Pneumatic diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010558963.9A CN111550391B (en) | 2020-06-18 | 2020-06-18 | Pneumatic diaphragm pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111550391A true CN111550391A (en) | 2020-08-18 |
| CN111550391B CN111550391B (en) | 2024-07-30 |
Family
ID=72005334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010558963.9A Active CN111550391B (en) | 2020-06-18 | 2020-06-18 | Pneumatic diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111550391B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5545016A (en) * | 1995-01-31 | 1996-08-13 | Standard-Keil Industries, Inc. | Plural chamber pneumatic pump having a motive fluid exhaust valve |
| CN104819134A (en) * | 2015-05-27 | 2015-08-05 | 潘磊 | Pneumatic diaphragm pump |
| CN212429160U (en) * | 2020-06-18 | 2021-01-29 | 浙江腾鹰机械科技有限公司 | Pneumatic diaphragm pump |
-
2020
- 2020-06-18 CN CN202010558963.9A patent/CN111550391B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5545016A (en) * | 1995-01-31 | 1996-08-13 | Standard-Keil Industries, Inc. | Plural chamber pneumatic pump having a motive fluid exhaust valve |
| CN104819134A (en) * | 2015-05-27 | 2015-08-05 | 潘磊 | Pneumatic diaphragm pump |
| CN212429160U (en) * | 2020-06-18 | 2021-01-29 | 浙江腾鹰机械科技有限公司 | Pneumatic diaphragm pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111550391B (en) | 2024-07-30 |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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