CN114922801B - High-pressure pneumatic diaphragm pump - Google Patents
High-pressure pneumatic diaphragm pump Download PDFInfo
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- CN114922801B CN114922801B CN202210450597.4A CN202210450597A CN114922801B CN 114922801 B CN114922801 B CN 114922801B CN 202210450597 A CN202210450597 A CN 202210450597A CN 114922801 B CN114922801 B CN 114922801B
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- sliding plate
- liquid
- liquid storage
- diaphragm
- storage cavity
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- 239000007788 liquid Substances 0.000 claims abstract description 175
- 230000001105 regulatory effect Effects 0.000 claims abstract description 39
- 239000012530 fluid Substances 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract 1
- 208000002925 dental caries Diseases 0.000 abstract 1
- 238000005192 partition Methods 0.000 abstract 1
- 239000011550 stock solution Substances 0.000 description 12
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000003348 petrochemical agent Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- -1 ships Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F04B43/025—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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0081—Special features systems, control, safety measures
- F04B43/009—Special features systems, control, safety measures leakage control; pump systems with two flexible members; between the actuating element and the pumped fluid
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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
Abstract
The utility model relates to a high-pressure pneumatic diaphragm pump, which relates to the field of diaphragm pumps and aims at solving the problem of lower discharge efficiency caused by intermittent discharge of liquid in the conventional diaphragm pump, and the high-pressure pneumatic diaphragm pump comprises a pump body, wherein the pump body is sequentially provided with a pneumatic assembly, a pressure regulating assembly and a liquid storage cavity from the middle part to two sides, and further comprises a liquid inlet pipe and a liquid outlet pipe which are communicated with the liquid storage cavity, and unidirectional blocking pieces are arranged at the joints of the liquid storage cavity, the liquid inlet pipe and the liquid outlet pipe; the pressure regulating subassembly includes pressure regulating box and sliding plate, and the pressure regulating box sets up on the pump body, and the sliding plate is with the internal partition of pressure regulating box into two cavitys, and the sliding plate slides along the setting direction in pressure regulating box's inside, and when the sliding plate slides, is located the liquid storage intracavity pressure increase of sliding plate slip direction one side and makes the liquid in liquid storage intracavity get into the drain pipe, is located the liquid storage intracavity pressure reduction that deviates from sliding plate slip direction one side and makes the liquid of feed liquor pipe get into the liquid storage intracavity. The utility model improves the effect of liquid discharge efficiency by the cross liquid discharge of the two groups of liquid storage cavities.
Description
Technical Field
The utility model relates to the field of diaphragm pumps, in particular to a high-pressure pneumatic diaphragm pump.
Background
The pneumatic diaphragm pump is a novel liquid material conveying device, and can replace submersible pumps, sewage pumps, centrifugal pumps and other devices. Because of its ability to transport liquids containing solid particles, it is commonly used in more and more industries such as petrochemicals, paints, ships, water treatment, food, paper making, mines, and the like.
The utility model of China with the application number of 202020186931.6 discloses a high-pressure pneumatic double-diaphragm pump which comprises a pump body, wherein the pump body comprises a left liquid cavity, a left gas cavity, an intermediate body, a right gas cavity and a pressurizing gas cavity which are sequentially arranged from left to right; the left liquid cavity and the left gas cavity are separated by a left diaphragm, and the edge of the left diaphragm is fixed on the intermediate body; the right liquid cavity and the pressurized gas cavity are separated by a right diaphragm, and the edge of the right diaphragm is fixed on the intermediate body; the two ends of the diaphragm connecting rod are respectively inserted into the left gas cavity and the right gas cavity, the left diaphragm pressing plate is arranged at the left end of the diaphragm connecting rod, and the right diaphragm pressing plate is arranged at the right end of the diaphragm connecting rod; the left gas cavity is communicated with the pressurized gas cavity, the gas valve assembly charges the left gas cavity, and high-pressure gas enters the pressurized gas cavity through the left diaphragm bolt, the diaphragm connecting rod and the right diaphragm bolt after entering the left diaphragm bolt communication hole through the vent hole on the diaphragm connecting rod, so that the pressurized gas cavity is filled with the high-pressure gas together. The liquid outlet pressure of the utility model has the excellent effect of doubling the liquid outlet pressure compared with the traditional diaphragm pump.
With respect to the related art in the above, the inventors found that the following drawbacks exist: after the liquid in the left liquid cavity is discharged, gas needs to be injected into the right liquid cavity, the diaphragms at two sides move rightwards along with the gas, a vacuum phenomenon is caused to the left liquid cavity, so that the liquid is sucked into the left liquid cavity, and the liquid in the left liquid cavity is discharged by injecting air into the left liquid cavity, so that the liquid discharge of the device is an intermittent process, and the efficiency of the liquid in the discharge process is lower.
Disclosure of Invention
In order to improve the liquid discharge efficiency, the utility model provides a high-pressure pneumatic diaphragm pump.
The utility model provides a high-pressure pneumatic diaphragm pump which adopts the following technical scheme:
the high-pressure pneumatic diaphragm pump comprises a pump body, a pneumatic assembly, a pressure regulating assembly, a liquid storage cavity, a liquid inlet pipe and a liquid outlet pipe, wherein the pneumatic assembly, the pressure regulating assembly and the liquid storage cavity are sequentially arranged from the middle part to two sides of the pump body;
the pressure regulating assembly comprises a pressure regulating box and a sliding plate, the pressure regulating box is arranged on the pump body, the sliding plate divides the interior of the pressure regulating box into two cavities, the sliding plate is arranged in the pressure regulating box in a sliding manner along the arrangement direction of the liquid storage cavity, when the sliding plate slides, the pressure in the liquid storage cavity positioned at one side of the sliding direction of the sliding plate increases to enable liquid in the liquid storage cavity to enter the liquid outlet pipe, and the pressure in the liquid storage cavity positioned at one side deviating from the sliding direction of the sliding plate decreases to enable liquid in the liquid inlet pipe to enter the liquid storage cavity;
the pneumatic assembly is used for driving the sliding plate to slide.
Through adopting above-mentioned technical scheme, be provided with two sets of stock solution chambeies on the pump body, when pneumatic assembly drive sliding plate slides, the inside pressure of two sets of stock solution chambeies can be adjusted to the sliding plate to make the inside liquid of stock solution intracavity get into the drain pipe and make the liquid in the feed liquor pipe get into in the stock solution chamber, make two sets of stock solution chambeies realize alternately flowing back, thereby improved the liquid emission efficiency of this diaphragm pump.
Optionally, the liquid storage cavity comprises fluid lid and diaphragm, the fluid lid set up in on the pump body, the diaphragm sets up in the fluid lid be close to the one side of pressure regulating box, the diaphragm with be provided with coupling assembling between the sliding plate, the sliding plate passes through coupling assembling push-and-pull diaphragm.
Through adopting above-mentioned technical scheme, the sliding plate slides in the inside of pressure regulating box, can realize the push-and-pull diaphragm through coupling assembling to change the inside pressure of stock solution chamber, coupling assembling makes the diaphragm can be comparatively stable take place deformation, causes the damage of diaphragm when avoiding the diaphragm push-and-pull.
Optionally, the coupling assembling includes connecting rod and two sets of splint, the one end of connecting rod set up in on the sliding plate, two sets of splint all set up on the connecting rod, offer the perforation that supplies the connecting rod to wear to establish on the diaphragm, two sets of splint are located the both sides of diaphragm respectively, two sets of movable butt between the splint.
Through adopting above-mentioned technical scheme, keeping away from the one end of sliding plate with the connecting rod and wearing to establish the perforation, realize the butt between two sets of splint on the rethread connecting rod, press from both sides tightly the diaphragm through two sets of splint, improve the area of contact of connecting rod and diaphragm, thereby when the sliding plate drives the connecting rod motion, can make the diaphragm motion through splint, can improve the change difference of stock solution intracavity space, thereby improve the stock solution volume in stock solution chamber, make this diaphragm pump can discharge more liquid in the unit time, further improve the discharge efficiency of diaphragm pump.
Optionally, be close to splint fixed connection of sliding plate is on the connecting rod, the connecting rod is kept away from the one end periphery wall of sliding plate and is provided with first screw thread, keeps away from the outside that the splint cover of sliding plate was located first screw thread, threaded connection has first nut on the connecting rod, first nut is used for the drive to keep away from the splint of sliding plate with be close to the splint butt of sliding plate.
Through adopting above-mentioned technical scheme, make the connecting rod keep away from the perforation of diaphragm after the one end of sliding plate passes, locate the splint cover on the connecting rod, two sets of splint are located the both sides of diaphragm this moment, carry out the centre gripping to the diaphragm through two sets of splint, install the butt between the first nut messenger two sets of splint to can press from both sides tight fixedly of tight diaphragm clamp, improve the leakproofness between diaphragm and the splint, and simple structure, the installation of being convenient for.
Optionally, the one end peripheral wall that the sliding plate was kept away from to the connecting rod is provided with the second screw thread, threaded connection has two sets of second nuts on the connecting rod, two sets of the second nut is located two sets of respectively the splint one side that keeps away from each other, second nut and splint movable butt.
Through adopting above-mentioned technical scheme, rotate two sets of second nuts and can drive two sets of splint and be close to each other, through adjusting the position of two sets of second nuts on the connecting rod to can adjust the position that two sets of splint press from both sides tight to the diaphragm, with the rate of tension of adjusting the diaphragm, make the push-and-pull to the diaphragm influence more accurate to the pressure of stock solution intracavity portion, realization extraction that can be better and discharge liquid.
Optionally, the pneumatic assembly includes inflatable member and two sets of air ducts, the both ends and the two that are located of air duct the cavity intercommunication of sliding plate homonymy, and two sets of the cavity of air duct intercommunication is different, the output and the two sets of air ducts of inflatable member all communicate.
Through adopting above-mentioned technical scheme, the gas is filled through the inside injection gas of air duct to the cavity to the piece, and can be through the different air duct internal injection gas of different cavities to make the atmospheric pressure in the cavity change, with the slip of drive sliding plate towards different directions, make the sliding plate slip more stable.
Optionally, a first electromagnetic valve is arranged between the air charging member and the air inlet end of one group of air guide pipes, and a second electromagnetic valve is arranged between the air charging member and the air inlet end of the other group of air guide pipes.
Through adopting above-mentioned technical scheme, control opening or closing of first solenoid valve and second solenoid valve can realize inflating the piece and aerify in to a set of air duct to make the inside atmospheric pressure of a set of cavity increase, with drive sliding plate slip, full automatic control need not manual regulation and control, make the diaphragm pump use more convenient.
Optionally, two groups of through holes which are respectively communicated with the two cavities are formed in the pressure regulating box, third electromagnetic valves which are used for opening and closing the through holes are arranged at the through holes, the third electromagnetic valves are electrically connected with the first electromagnetic valves and the second electromagnetic valves, and when the inflatable member injects gas into the cavity at one side of the sliding plate, the third electromagnetic valves at the through holes which are communicated with the cavity at the other side of the sliding plate are opened.
Through adopting above-mentioned technical scheme, when the inflatable member is to the inside injection gas of a set of cavity, in order to be convenient for the slip of sliding plate, need make the inside gaseous exhaust of another group of cavity, the third solenoid valve of the through-hole department of intercommunication on the corresponding cavity this moment is opened, the discharge of the air of being convenient for, and third solenoid valve and first solenoid valve and second solenoid valve electric connection realize the automatic control of third solenoid valve to realize the better operation of diaphragm pump inner structure.
Optionally, the one-way plugging piece is a ball valve, the ball valve at the junction of the liquid storage cavity and the liquid inlet pipe is arranged to flow from the liquid inlet pipe to the liquid storage cavity, and the ball valve at the junction of the liquid storage cavity and the liquid outlet pipe is arranged to flow from the liquid storage cavity to the liquid outlet pipe.
Through adopting above-mentioned technical scheme, the case of ball valve is alloy steel spray welding usually, and the sealing washer is alloy steel build-up welding, makes the ball valve can not produce too big wearing and tearing in the switch room, is applicable to as the valve of discharging the liquid pipeline that contains solid particle, and ball valve seal is artificial grinding, knows case and sealing washer and completely coincide just can use, and the leakproofness is better.
Optionally, the diaphragm is made of an elastic material.
By adopting the technical scheme, the diaphragm can be deformed when being pushed and pulled, so that the diaphragm is enlarged or reduced.
In summary, the utility model has at least the following beneficial technical effects:
when the pneumatic assembly drives the sliding plate to slide, the sliding plate can adjust the pressure intensity inside the two groups of liquid storage cavities, so that liquid inside the liquid storage cavities enters the liquid outlet pipe and liquid in the liquid inlet pipe enters the liquid storage cavities, the two groups of liquid storage cavities realize cross liquid discharge, and the liquid discharge efficiency of the diaphragm pump is improved;
the connecting rod can be driven to move by sliding the sliding plate, so that two groups of clamping plates are driven to move, the clamping plates push and pull the diaphragm to deform the diaphragm, so that the pressure change in the liquid storage cavity is changed, liquid in the liquid storage cavity enters the liquid outlet pipe and liquid in the liquid inlet pipe enters the liquid storage cavity, and the use effect is good;
through opening or closing of control first solenoid valve, second solenoid valve, can make the piece of aerifing to the injection gas in a set of cavity, the air discharge in another set of cavity of messenger is made to the automatic opening of third solenoid valve simultaneously to thereby control the sliding plate and remove, so that push-and-pull to the diaphragm, realize adjusting the pressure in the stock solution chamber, full automatic control makes the diaphragm pump more convenient to use.
Drawings
FIG. 1 is a schematic overall structure of embodiment 1;
FIG. 2 is a schematic cross-sectional view of example 1;
FIG. 3 is an exploded view showing a liquid storage chamber of example 1;
fig. 4 is a schematic cross-sectional view of example 2.
Reference numerals: 1. a pump body; 2. a pneumatic assembly; 21. an inflatable member; 22. an air duct; 23. a first electromagnetic valve; 24. a second electromagnetic valve; 25. a third electromagnetic valve; 3. a pressure regulating assembly; 31. a pressure regulating box; 311. a through hole; 32. a sliding plate; 4. a liquid storage cavity; 41. a fluid cap; 42. a diaphragm; 5. a liquid inlet pipe; 6. a liquid outlet pipe; 7. a one-way closure; 8. a connection assembly; 81. a connecting rod; 811. a first thread; 812. a first nut; 813. a second thread; 814. a second nut; 82. and (3) clamping plates.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-4.
The embodiment of the utility model discloses a high-pressure pneumatic diaphragm pump.
Example 1:
referring to fig. 1 and 2, the high-pressure pneumatic diaphragm pump comprises a pump body 1, a pneumatic component 2, a pressure regulating component 3, a liquid storage cavity 4, a liquid inlet pipe 5, a liquid outlet pipe 6 and a one-way plugging piece 7, wherein the pneumatic component 2, the pressure regulating component 3, the liquid storage cavity 4, the liquid inlet pipe 5, the liquid outlet pipe 6 and the one-way plugging piece 7 are all arranged on the pump body 1, the pressure regulating component 3 is controlled by the pneumatic component 2 so that the pressure inside the liquid storage cavity 4 is increased or decreased, liquid inside the liquid storage cavity 4 enters the liquid outlet pipe 6 or liquid inside the liquid inlet pipe 5 enters the liquid storage cavity 4, the liquid inlet pipe 5 and the liquid outlet pipe 6 are all communicated with the liquid storage cavity 4, the one-way plugging piece 7 is arranged at the connection position of the liquid storage cavity 4 and the liquid inlet pipe 5 and the liquid outlet pipe 6, the pneumatic component 2 and the outside of the pressure regulating component 3 are provided with a protective cover so as to protect the internal structure to normally operate.
Referring to fig. 1 and 2, in order to improve the efficiency of the diaphragm 42 pump for transferring liquid, the pressure regulating component 3 and the liquid storage cavity 4 are both provided with two groups, the pneumatic component 2 is disposed in the middle of the pump body 1, the pressure regulating component 3 and the liquid storage cavity 4 are sequentially disposed on two sides of the pneumatic component 2, when the pressure in one group of liquid storage cavity 4 increases to enable the liquid to be discharged into the liquid outlet pipe 6, the pressure in the other group of liquid storage cavity 4 decreases to enable the liquid in the liquid inlet pipe 5 to enter the liquid storage cavity 4.
Referring to fig. 2 and 3, in order to facilitate the adjustment of the pressure inside the liquid storage cavity 4, the pressure adjusting assembly 3 includes a pressure adjusting box 31 and a sliding plate 32, the pressure adjusting box 31 is fixedly connected to the pump body 1, the sliding plate 32 divides the interior of the pressure adjusting box 31 into two cavities, the sliding plate 32 is slidably connected to the interior of the pressure adjusting box 31 along the arrangement direction of the liquid storage cavity 4, a limit bar is fixedly connected to the inner wall of the pressure adjusting box 31, a sliding groove slidably adapted to the limit bar is formed in the sliding plate 32, so as to improve the sliding stability of the sliding plate 32, the sliding plate 32 is driven to slide by the pneumatic assembly 2, when the sliding plate 32 slides, the pressure inside the liquid storage cavity 4 at one side of the sliding direction of the sliding plate 32 increases, and the pressure inside the liquid storage cavity 4 at one side deviating from the sliding direction of the sliding plate 32 decreases;
the liquid storage cavity 4 is composed of a fluid cover 41 and a diaphragm 42, the fluid cover 41 is fixedly connected to the pump body 1, the diaphragm 42 is fixedly connected to one side of the fluid cover 41, which is close to the pressure regulating box 31, through a screw, the diaphragm 42 is made of soft elastic materials, a connecting component 8 is arranged between the diaphragm 42 and the sliding plate 32, and the sliding plate 32 pushes and pulls the diaphragm 42 through the connecting component 8, so that the diaphragm 42 deforms, and the pressure intensity in the liquid storage cavity 4 is regulated;
in order to enable the sliding plate 32 to slide and better drive the diaphragm 42 to deform, the connecting assembly 8 comprises a connecting rod 81 and two groups of clamping plates 82, one end of the connecting rod 81 is fixedly connected to the sliding plate 32, a hole for the connecting rod 81 to pass through is formed in the pressure regulating box 31, a rubber ring attached to the peripheral wall of the connecting rod 81 is fixedly connected in the hole, a through hole for the connecting rod 81 to pass through is formed in the diaphragm 42, the two groups of clamping plates 82 are arranged on the connecting rod 81, the two groups of clamping plates 82 are respectively positioned on two sides of the diaphragm 42, the diaphragm 42 is fixed by movable abutting between the two groups of clamping plates 82, in the embodiment, the clamping plates 82 close to the sliding plate 32 are fixedly connected to the connecting rod 81, the connecting rod 81 is perpendicular to the sliding plate 32, a first thread 811 is carved on the peripheral wall of one end of the connecting rod 81 far away from the sliding plate 32, the splint 82 cover that keeps away from the sliding plate 32 is located the outside of first screw 811, and threaded connection has first nut 812 on the connecting rod 81, and first nut 812 is used for driving the splint 82 that keeps away from the sliding plate 32 with be close to the splint 82 butt of sliding plate 32 realizes that two sets of splint 82 press from both sides tightly fixedly to the diaphragm 42, when sliding plate 32 slides this moment, can drive connecting rod 81 and splint 82 motion to make the diaphragm 42 take place deformation, and splint 82 has increased the area of contact with diaphragm 42, and splint 82 makes diaphragm 42 motion time, can improve the change difference in liquid storage chamber 4 inner space, thereby improves the liquid storage volume of liquid storage chamber 4, makes this diaphragm 42 pump can discharge more liquid in unit time, improves the discharge efficiency of diaphragm 42 pump.
Referring to fig. 2, in order to drive the sliding plate 32 to slide inside the adjusting boxes, the pneumatic assembly 2 includes an air pump 21 and two sets of air ducts 22, the two sets of air ducts 22 are fixedly connected between the two adjusting boxes, two ends of the air ducts 22 are communicated with two cavities located at the same side of the sliding plate 32, and the effect of simultaneously providing pressure through the two cavities is maintained, so that the utility model maintains the original effect of the existing diaphragm pump while adding other effects, the cavities communicated by the two sets of air ducts 22 are different, the output end of the air pump 21 is communicated with the two sets of air ducts 22, in the embodiment, the air pump 21 is an air pump, a first electromagnetic valve 23 is fixedly arranged between the air pump and the air inlet end of one set of air ducts 22, a second electromagnetic valve 24 is fixedly connected between the air pump and the air inlet end of the other set of air ducts 22, and the opening or closing of the first electromagnetic valve 23 and the second electromagnetic valve 24 is controlled, the inflation member 21 can be inflated into one group of air guide pipes 22, so that the internal air pressure of one group of cavities is increased to drive the sliding plate 32 to slide, when air is injected into one group of cavities, the air in the other group of cavities needs to be exhausted in order to facilitate the sliding of the sliding plate 32, therefore, two groups of through holes 311 which are respectively communicated with the two cavities are formed on the pressure regulating box 31, a third electromagnetic valve 25 for opening and closing the through holes 311 is fixedly arranged at each through hole 311, the third electromagnetic valve 25 is electrically connected with the first electromagnetic valve 23 and the second electromagnetic valve 24, when the inflation member 21 injects air into the cavity on one side of the sliding plate 32, the third electromagnetic valve 25 at the through hole 311 communicated with the cavity on the other side of the sliding plate 32 is opened to facilitate the exhausting of air, the third electromagnetic valve 25 is started along with the starting of the first electromagnetic valve 23 and the second electromagnetic valve 24, automatic control of the third solenoid valve 25 is achieved, thereby achieving better operation of the internal structure of the diaphragm 42 pump.
Referring to fig. 2, in order to realize unidirectional flow of liquid, in this embodiment, the unidirectional plugging member 7 is a ball valve, the ball valve located at the connection between the liquid storage cavity 4 and the liquid inlet pipe 5 faces the liquid storage cavity 4 from the liquid inlet pipe 5, and the ball valve located at the connection between the liquid storage cavity 4 and the liquid outlet pipe 6 faces the liquid outlet pipe 6 from the liquid storage cavity 4.
The implementation principle of the embodiment 1 is as follows: when the diaphragm 42 pump is used, gas is injected into different cavities in the pressure regulating box 31 in the pressure regulating assembly 3 through the pneumatic assembly 2, so that the sliding plate 32 is driven to slide in different directions, the sliding plate 32 slides to push and pull the diaphragm 42 through the connecting assembly 8, the pressure in one group of liquid storage cavities 4 is increased, the pressure in the other group of liquid storage cavities 4 is reduced, the pressure in the liquid storage cavities 4 is reduced, liquid in the liquid inlet pipe 5 can pass through the one-way sealing piece 7 and enter the liquid storage cavities 4, the pressure in the liquid storage cavities 4 is increased, the liquid in the liquid storage cavities 4 can pass through the one-way sealing piece 7 and enter the liquid outlet pipe 6, and the two groups of liquid storage cavities 4 are crossed to realize liquid discharging and liquid pumping, so that the liquid conveying efficiency is improved.
Example 2:
referring to fig. 4, the difference between this embodiment and embodiment 1 is that the outer peripheral wall of one end of the connecting rod 81 far away from the sliding plate 32 is engraved with the second thread 813, the connecting rod 81 is threaded with two sets of second nuts 814, the two sets of clamping plates 82 are all sleeved outside the second thread 813, the two sets of second nuts 814 are respectively located at one sides of the two sets of clamping plates 82 far away from each other, the second nuts 814 are movably abutted with the clamping plates 82, the positions of the second nuts 814 on the connecting rod 81 can be adjusted by rotating the two sets of second nuts 814, and then the positions of the two sets of clamping plates 82 are adjusted, the closer the two sets of clamping plates 82 are to the adjusting box, the higher the tension of the clamping plates 82 after clamping the diaphragm 42 is, so that the influence of push-pull to the diaphragm 42 on the pressure inside the liquid storage cavity 4 is more accurate, and liquid extraction and liquid discharge can be better realized.
The implementation principle of the embodiment 2 is as follows: through adjusting the position of the second nut 814 that is close to pressure regulating box 31 one side, locate on the connecting rod 81 with a set of splint 82 cover, insert the perforation on the diaphragm 42 with connecting rod 81 again, and then install another splint 82 and second nut 814, through adjusting the position of two sets of second nuts 814 on connecting rod 81, thereby can adjust the position that two sets of splint 82 press from both sides tight to the diaphragm 42, with the rate of tension of adjusting the diaphragm 42, make the push-and-pull to the diaphragm 42 more accurate to the inside pressure influence of stock solution chamber 4, realization extraction that can be better and discharge liquid.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (7)
1. High-pressure pneumatic diaphragm pump, including the pump body (1), its characterized in that: the pump body (1) is sequentially provided with a pneumatic assembly (2), a pressure regulating assembly (3) and a liquid storage cavity (4) from the middle part to the two sides, and further comprises a liquid inlet pipe (5) and a liquid outlet pipe (6) which are communicated with the liquid storage cavity (4), wherein the joints of the liquid storage cavity (4) and the liquid inlet pipe (5) and the liquid outlet pipe (6) are respectively provided with a one-way plugging piece (7);
the pressure regulating assembly (3) comprises a pressure regulating box (31) and a sliding plate (32), the pressure regulating box (31) is arranged on the pump body (1), the sliding plate (32) divides the interior of the pressure regulating box (31) into two cavities, the sliding plate (32) is slidably arranged in the pressure regulating box (31) along the arrangement direction of the liquid storage cavity (4), when the sliding plate (32) slides, the pressure in the liquid storage cavity (4) positioned at one side of the sliding direction of the sliding plate (32) is increased to enable liquid in the liquid storage cavity (4) to enter the liquid outlet pipe (6), and the pressure in the liquid storage cavity (4) positioned at one side deviating from the sliding direction of the sliding plate (32) is reduced to enable liquid in the liquid inlet pipe (5) to enter the liquid storage cavity (4);
the pneumatic assembly (2) is used for driving the sliding plate (32) to slide;
the pneumatic assembly (2) comprises an inflatable part (21) and two groups of air guide pipes (22), two ends of each air guide pipe (22) are communicated with two cavities positioned on the same side of the sliding plate (32), the two groups of air guide pipes (22) are communicated with different cavities, and the output end of the inflatable part (21) is communicated with the two groups of air guide pipes (22); a first electromagnetic valve (23) is arranged between the air charging piece (21) and the air inlet end of one group of air guide pipes (22), and a second electromagnetic valve (24) is arranged between the air charging piece (21) and the air inlet end of the other group of air guide pipes (22);
two groups of through holes (311) are formed in the pressure regulating box (31), third electromagnetic valves (25) for opening and closing the through holes (311) are arranged at the through holes (311), the third electromagnetic valves (25) are electrically connected with the first electromagnetic valves (23) and the second electromagnetic valves (24), and when the inflatable piece (21) injects gas into the cavity on one side of the sliding plate (32), the third electromagnetic valves (25) at the through holes (311) communicated with the cavity on the other side of the sliding plate (32) are opened.
2. The high pressure pneumatic diaphragm pump of claim 1, wherein: the liquid storage cavity (4) is composed of a fluid cover (41) and a diaphragm (42), the fluid cover (41) is arranged on the pump body (1), the diaphragm (42) is arranged on one side, close to the pressure regulating box (31), of the fluid cover (41), a connecting component (8) is arranged between the diaphragm (42) and the sliding plate (32), and the sliding plate (32) pushes and pulls the diaphragm (42) through the connecting component (8).
3. The high pressure pneumatic diaphragm pump of claim 2, wherein: the connecting assembly (8) comprises a connecting rod (81) and two groups of clamping plates (82), one end of the connecting rod (81) is arranged on the sliding plate (32), the two groups of clamping plates (82) are arranged on the connecting rod (81), a through hole for the connecting rod (81) to penetrate through is formed in the diaphragm (42), the two groups of clamping plates (82) are respectively arranged on two sides of the diaphragm (42), and the two groups of clamping plates (82) are in movable butt joint.
4. A high pressure pneumatic diaphragm pump according to claim 3, wherein: be close to splint (82) fixed connection on connecting rod (81) of sliding plate (32), connecting rod (81) are kept away from one end peripheral wall of sliding plate (32) and are provided with first screw thread (811), keep away from the outside that first screw thread (811) were located to splint (82) cover of sliding plate (32), threaded connection has first nut (812) on connecting rod (81), first nut (812) are used for the drive to keep away from splint (82) of sliding plate (32) with be close to splint (82) butt of sliding plate (32).
5. A high pressure pneumatic diaphragm pump according to claim 3, wherein: the connecting rod (81) is provided with second screw threads (813) away from the peripheral wall of one end of the sliding plate (32), two groups of second nuts (814) are connected to the connecting rod (81) in a threaded mode, the two groups of second nuts (814) are located on one sides, away from each other, of the two groups of clamping plates (82), and the second nuts (814) are in movable butt with the clamping plates (82).
6. The high pressure pneumatic diaphragm pump of claim 1, wherein: the one-way plugging piece (7) is a ball valve, the ball valve flow direction at the joint of the liquid storage cavity (4) and the liquid inlet pipe (5) is from the liquid inlet pipe (5) to the liquid storage cavity (4), and the ball valve flow direction at the joint of the liquid storage cavity (4) and the liquid outlet pipe (6) is from the liquid storage cavity (4) to the liquid outlet pipe (6).
7. The high pressure pneumatic diaphragm pump of claim 2, wherein: the diaphragm (42) is made of an elastic material.
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|---|---|---|---|
| CN202210450597.4A CN114922801B (en) | 2022-04-27 | 2022-04-27 | High-pressure pneumatic diaphragm pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210450597.4A CN114922801B (en) | 2022-04-27 | 2022-04-27 | High-pressure pneumatic diaphragm pump |
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| CN114922801A CN114922801A (en) | 2022-08-19 |
| CN114922801B true CN114922801B (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210450597.4A Active CN114922801B (en) | 2022-04-27 | 2022-04-27 | High-pressure pneumatic diaphragm pump |
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| EP0018143A1 (en) * | 1979-04-13 | 1980-10-29 | Wilden Pump & Engineering Co. | Air driven diaphragm pump |
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| CN208416888U (en) * | 2018-06-25 | 2019-01-22 | 苏州罗曼奇机械科技有限公司 | One kind distribution valve assembly on double diaphragm diaphragm pumps |
| CN110735782A (en) * | 2019-07-22 | 2020-01-31 | 六安永贞匠道机电科技有限公司 | Flexible pneumatic driving method of diaphragm pumps |
| CN211648416U (en) * | 2020-02-20 | 2020-10-09 | 奥锐力实业(广州)有限公司 | High-pressure pneumatic double-diaphragm pump |
| CN212337589U (en) * | 2020-07-28 | 2021-01-12 | 星宇电子(宁波)有限公司 | Energy-saving external control type pneumatic diaphragm pump |
| CN213360087U (en) * | 2020-08-13 | 2021-06-04 | 四川锦盛油田技术服务有限公司 | Continuous automatic agent injection device for natural gas well |
| CN114320848A (en) * | 2021-11-23 | 2022-04-12 | 嘉善边锋机械股份有限公司 | Diaphragm pump with solar term function |
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2022
- 2022-04-27 CN CN202210450597.4A patent/CN114922801B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0018143A1 (en) * | 1979-04-13 | 1980-10-29 | Wilden Pump & Engineering Co. | Air driven diaphragm pump |
| EP0781922A1 (en) * | 1995-12-28 | 1997-07-02 | Van Wijk Engineering B.V. | Double-acting membrane pump |
| CN200943571Y (en) * | 2006-09-07 | 2007-09-05 | 陈黎明 | Pneumatic double diaphragm pump |
| CN206257031U (en) * | 2016-11-30 | 2017-06-16 | 天津市帕瑞铭达科技有限公司 | A kind of novel pneumatic barrier film pump installation |
| CN208416888U (en) * | 2018-06-25 | 2019-01-22 | 苏州罗曼奇机械科技有限公司 | One kind distribution valve assembly on double diaphragm diaphragm pumps |
| CN110735782A (en) * | 2019-07-22 | 2020-01-31 | 六安永贞匠道机电科技有限公司 | Flexible pneumatic driving method of diaphragm pumps |
| CN211648416U (en) * | 2020-02-20 | 2020-10-09 | 奥锐力实业(广州)有限公司 | High-pressure pneumatic double-diaphragm pump |
| CN212337589U (en) * | 2020-07-28 | 2021-01-12 | 星宇电子(宁波)有限公司 | Energy-saving external control type pneumatic diaphragm pump |
| CN213360087U (en) * | 2020-08-13 | 2021-06-04 | 四川锦盛油田技术服务有限公司 | Continuous automatic agent injection device for natural gas well |
| CN114320848A (en) * | 2021-11-23 | 2022-04-12 | 嘉善边锋机械股份有限公司 | Diaphragm pump with solar term function |
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| Publication number | Publication date |
|---|---|
| CN114922801A (en) | 2022-08-19 |
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