KR20060120333A - Air pressure pump with no vibration for high consistency - Google Patents

Abstract

An air pressure pump with no vibration for high consistency is provided to realize continuous pumping of liquid phase materials with a high discharge pressure but not generating serious noise by supplying high pressure air to right and left pneumatic chambers in a cylinder from an air compressor alternately. An air pressure pump with no vibration for high consistency includes a valve unit for controlling introduction and discharge of liquid phase materials, and having a branch type body connected with inlet and outlet pipes and mounted with check valves to be opened in the outlet pipe direction. A pneumatic unit(3) generates driving sources for introducing or discharging the liquid phase materials with air supplied from an air compressor. In the pneumatic unit, right and left pneumatic chambers(12,11) are formed in a cylinder(10) and pistons(14,13) are inserted in the chambers to be connected to a piston rod(15). Each spring(16) is provided to the pistons for reducing pulsation and improving reciprocation speed. Disc type pushers(23,22) are slidably mounted in the pistons via springs(20,21) having different spring coefficients. The pushers selective push valve rods mounted on barrier walls(25,24), wherein the valve rods open or close valve holes of the barrier walls and the valve holes are connected to an orifice(30). A connection pipe(31) connects the pneumatic chambers to each other. The valve holes are provided with air inlet and outlet pipes, wherein the air inlet pipe(32) is mounted with a valve for pumping speed control.

Description

Air pressure pump with no vibration for high consistency

The present invention relates to a high-viscosity pulsation-free pneumatic pump, and more particularly, to continuously inhale and discharge high-viscosity liquids on both sides by vibrating and noise-free by interlocking and injecting and discharging compressed air into a cylinder. It is to provide a high-viscosity pulsating pneumatic pump.

Conventional products that can pump liquids with pneumatic pumps include diaphragm pumps from ARO of the United States. However, vibration and noise are too severe during operation, which requires the attachment of the pump at all times and damage of the valve due to continuous reciprocating motion. If there is a mixture of liquid and air at the same time and air is mixed in the supply of brake oil, there is a fatal risk and the operation of the pump may be stopped.In addition, a small amount of liquid exchange (lubricating oil, etc.) and Gases such as refrigerants, pumping of liquid mixtures, and high viscosity liquids could not be pumped.

In addition, the German pneumatic drum pump may be pumped by rotating the impeller using air, but the liquid to be discharged is not completely discharged and remains. In addition, it is not suitable for use in the exchange of small amounts of liquids (removal of waste oil and supply of new oil) while moving in various lubricants such as large machinery or wheels of electric trains.

In addition, there is a case of injecting lubricating oil by using pressurized air by injecting various lubricating oil into a general pressure vessel, but this does not have a function of removing waste oil in a situation where fresh oil should be injected after removing waste oil such as a large machine. Since the case is narrow and the space is small, the pumping speed such as lubricating oil supply should be made to be slow and appropriate.

In addition, there are gear pumps using existing electric motors, but this does not have an effect of preventing explosion, and when pumping pumps in a large number of places, each motor is equipped with a motor, which is against energy saving and uses flammable or toxic substances as the industry develops. As the frequency increases, fire is generated due to leakage or synthesis of flammables in the factory, and in particular, the number of factories that cause explosions and fires increases due to the backfire of flammables such as motors and the like electrically. to be.

In the general use state of various lubricants on the market, it is supplied to the drum 200L and poured or transferred to another container with a manual valve by using a pump or a forklift.

The valve of this container is turned into a container that can be transported by hand (kettle, etc.) to the lubricating oil exchange site of large machinery, etc., and the waste oil cock of large machinery is opened to remove oil by flowing to the floor. This is the case of removing the waste oil on the floor with mop after supplying fresh oil through. As such, there is a need for a new device capable of quickly and accurately supplying new oils by eliminating the intermediate process from the lubricating oil drum supplied in the exchange of lubricating oil and immediately moving to necessary elements such as large machinery or electric trains.

In the present invention, to provide a high viscosity non-pulsating pneumatic pump that can solve all the problems of the existing pneumatic pump as described above,

In particular, the present invention is capable of pumping high viscosity liquids (honey, etc.) and high-viscosity pumps and gases, mixed liquids, and the like, as well as oil-changing and toxic low viscosity chemical liquids such as large machinery. The pulsation can be minimized by using the pressure difference, and the pneumatic part and the pumping part can be distinguished to maximize the durability life of the device. The purpose of the present invention is to provide a high viscosity non-pulsating pneumatic pump that can achieve the technical problem.

1 is a perspective view showing a pneumatic pump (1) provided by the present invention, Figures 2 and 2a is a cross-sectional view showing the assembled state and the main portion enlarged cross-sectional configuration, Figure 3 is an exploded perspective view of the present invention, these figures The present invention will be described in detail together with.

The high-viscosity pulsating pneumatic pump 1 of the present invention cooperates with the valve unit 2 for intermitting the inflow and discharge of the liquid and the valve unit 2 to receive air from an air compressor (not shown) to supply pneumatically. It is largely composed of a pneumatic unit 3 that provides a driving source (pumping function) for inflow and outflow of liquid matter.

On the branched body 4 constituting the valve unit 2, the inlet pipe 5 into which the liquid is introduced and the discharge pipe 6 discharged are connected to each other, and the inlet pipe 5 and the discharge pipe ( 6) Two check valves 7 and 7a are installed in two directions on the branched body 4 so that they can be opened only in the discharge pipe 6 direction, respectively.

Between both check valves 7 and 7a installed on the branched body 4, connecting pipes 8 and 9 connected to the pneumatic units 3 are connected to each other.

And the pneumatic unit (3), which can be said to be the core of the present invention, is formed in a cylindrical shape and forms pneumatic chambers (11, 12) left and right inside the assembling and disassembling cylinder (10), and the pneumatic chambers (11, 12) Pistons 13 and 14, which can be slid by pneumatic pressure from side to side, are indented to connect to the mutual piston rod 15.

That is, the pistons 13 and 14 inserted into both ends of the piston rod 15 are springs 16 for reducing the pulsation at the end side and increasing the speed during the reciprocating movement of the pistons 13 and 14. Resilient support is installed so that it can not be separated to the fixing nut (17).

A pumping chamber 18 is formed between the left and right pneumatic chambers 11 and 12 formed on the cylinder 10 so that the pumping piston 19 fixed in the middle of the piston rod 15 slides simultaneously with the piston rod 15. It is built to be.

In addition, the spring coefficient is adjusted to be compatible with the pressure of the air compressor used inside the pistons 13 and 14 embedded in the left and right pneumatic chambers 11 and 12 except for the pumping chamber 18 in the center of the cylinder 10. The disc-shaped pushers 22 and 23 are elastically mounted to the center side through two different springs 20 and 21.

The pushers 22 and 23 may selectively push valve rods 26 and 27 installed on the partition walls 24 and 25 that form the left and right pneumatic chambers 11 and 12 and the central pumping chamber 18. The valve rods 26 and 27 are coupled onto a plurality of valve holes 28 and 29 formed laterally on both partitions 24 and 25 so that the left and right valve holes 28 and 29 are left to right. The valves 26a and 27a selectively open and close while reciprocating.

The plurality of valve holes 28 and 29 formed in the partition walls 24 and 25 are mutually communicated with orifices 30 on the partition walls 24 and 25 and on the valve holes 28 and 29. The valves 26a and 27a of the combined valve rods 26 and 27 are configured to open and close in opposite directions.

And both the pneumatic chamber (11, 12) bar is connected to the communication pipe 31 so that the air can communicate with each other, the communication tube 31 may be connected to both ends of the pneumatic chamber (11, 12), As shown in FIG. 4, the center portion and the outer portion of both pneumatic chambers 11 and 12 may be configured to communicate with each other based on the pistons 13 and 14.

In the pumping chamber 18 of the central portion, connecting pipes 8 and 9 which repeat the operation of introducing and discharging the liquid to be pumped are connected to the pipes 24 and 25.

In addition, the air supply pipe 32 for supplying air supplied from the air compressor and the air discharge pipe 33 for discharging onto the plurality of valve holes 28 and 29 formed on the partition walls 24 and 25, respectively. Connection is plumbed. The air supply pipe 32 is provided with a valve 34 for adjusting the pumping speed.

And the cylinder 10 of the present invention is assembled using a number of fixing bolts 36 and fixing nuts 37 to be easily assembled and disassembled for parts replacement and repair, etc., even after installation in a specific position. Therefore, if only the fixing bolt 36 and the fixing nut 37 are screwed off, the cylinder 10 may be disassembled and the pneumatic chambers 11 and 12 and the pumping chamber 18 may be separated from the partition walls 24 and 25. Make sure

Reference numeral 35 in the figure shows the packing.

High viscosity non-pulsating pneumatic pump (1) of the present invention configured as described above, when air is supplied from the air compressor to the pneumatic unit (3), the liquid is introduced and discharged through the valve unit (2), as well as high viscosity It is possible to continuously supply liquids such as pulsation with minimized pulsation. When pumping liquids with high viscosity and low viscosity, the pneumatic unit (3) should be installed at a position higher than the valve unit (2). Low-liquid liquid and low-boiling liquid may be used by installing the above-mentioned pneumatic unit 3 below the valve unit 2.

When mixing high viscosity and low viscosity, it is preferable to install and use the pneumatic unit 3 and the valve unit 2 on the same horizontal surface.

When the pneumatic unit 3 and the valve unit 2 are used, the installation position achieves the purpose of improving the durability life of the device by blocking the inflow of liquids into the pumping chamber 18 and the connecting pipes 8 and 9 as much as possible. In addition, to perform a smooth liquid pumping by the caption action of the air therein, and to provide the discharge continuity.

As described above, the pneumatic pump 1 according to the present invention is installed by adjusting its position according to the liquid to be pumped, and then, in order to transfer and supply the liquid contained in a specific container (drum, etc.), the liquid through the inlet pipe 5. Is allowed to flow in, and when the air compressor is operated, air is supplied to the pneumatic unit 3 through the air supply pipe 32 and branched onto the left and right partitions 24 and 25 of the cylinder 10. As air is supplied in both directions, air is introduced into one of the left and right pneumatic chambers 11 and 12 while the air is introduced into the valve hole 28 in one of the left and right valve holes 28.

In FIGS. 5 and 5A, as the air flows into the left pneumatic chamber 11, the disc-shaped pusher 22 and the piston 13 inwardly installed on the piston rod 15 are pushed to the left and the springs 16, 20, and 21. ) Are respectively compressed, and the disk-shaped pusher 23 and the piston 14 embedded in the right side of the piston rod 15 are moved to the right side. Of course, the pumping piston 19 is fixed to the center of the piston rod 15 so that the slide operation is performed on the pumping chamber 18 is moved to the left while generating a suction force on the connecting pipe (9) valve unit (2) Open the check valve (7) of the liquid is made to flow through the inlet pipe (5).

As the air continuously flows into the left pneumatic chamber 11, the pusher 23 and the piston 14 on the right pneumatic chamber 12 move in a left direction, and flow into the left pneumatic chamber 11. Some of the air flows into the right pneumatic chamber 12 through the communication tube 31 to push the piston 14 on the right to the left, so that the smoother slide operation can be achieved when the pistons 13 and 14 move for the first time. Will cooperate.

The disk-shaped pusher 23 in the right pneumatic chamber 12 is connected to the piston rod 15 by the continuous supply of air and is also pushed to the left by air supplied to the communication pipe 31. Compresses the springs 20 and 21 by the movement of the piston 14, and one of the springs 20 and 21 having different spring coefficients momentarily expands in the compressed state, thereby causing the pusher 23 to be shot and the valve rod ( The right end of the valves 26 and 27 is pushed to open the valve 26a on the right side of the valves 26a and 27a of the valve rods 26 and 27 and to close the valve 27a installed in parallel. The valve 26a is closed and the parallel valve 27a is opened.

As a result, the air introduced into the air supply pipe 32 by the opening and closing operations of the left and right valves 26a and 27a on the valve rods 26 and 27 is supplied to the right pneumatic chamber 12 on the left pneumatic chamber 11. This is done, the air remaining between the partition wall 24 and the piston 13 of the left pneumatic chamber 11 is discharged through the air discharge pipe 33 through the valve hole (29).

When the air is supplied to the right pneumatic chamber 12 due to the automatic change of the supply direction of the air, the pumping piston 19 on the pumping chamber 18 is moved to the right direction and sucked onto the connecting pipe 9. The liquid is discharged, and the liquid is discharged through the discharge pipe 6 by opening the check valve 7a of the valve unit 2 by the discharge pressure of the liquid.

In this way, the air supplied from the air compressor is alternately replaced by the valve rods 26 and 27 having the pistons 13 and 14 and the valves 26a and 27a on the pneumatic chambers 11 and 12 formed to the left and right of the cylinder 10. While being supplied, it is fixed on the piston rod 15 and reciprocates the pumping piston 19 installed so as to reciprocate on the pumping chamber 18 from side to side, and inflow and discharge of liquids onto the pumping chamber 18 is performed. It will be able to perform the liquid pumping operation continuously and repeatedly.

And in using the pneumatic pump (1) of the present invention, when the packing 35, etc. in the cylinder 10 is worn out to replace it, only the fixing bolt 36 and the fixing nut 37 are simply installed at the installed place. When the screw is removed, the cylinder 10 is separated together with the partition walls 24 and 25, so that repair and replacement can be performed very easily.

As described in detail above, the high viscosity non-pulsating pneumatic pump 1 provided by the present invention alternately supplies high pressure air from the air compressor onto the left and right pneumatic chambers 11 and 12 inside the cylinder 10. The pistons 13 and 14 provided at both ends of the piston rod 15 are reciprocated from side to side, and the pumping piston 19 fixed to the piston rod 15 is reciprocated from side to side on the pumping chamber 18 to form a liquid phase. To pump water continuously,

The present invention is capable of continuously pumping various liquids (low viscosity and high viscosity liquids, as well as explosive liquids, mixtures of gases and liquids such as refrigerants, gel foods, etc.) with a large discharge pressure without noise, Its simple structure allows the pumping of liquid water at high pressure, so that it is possible to replace expensive imported pumps, and easy to install, repair, and replace.

1 is a perspective view of a high viscosity non-pulsating pneumatic pump provided by the present invention

Figure 2 is a cross-sectional configuration of the high viscosity non-pulsating pneumatic pump provided by the present invention

Figure 2a is an enlarged cross-sectional view of the main portion of the high viscosity non-pulsating pneumatic pump provided by the present invention

Degree

Figure 3 is an exploded perspective view of the main portion of the high viscosity non-pulsating pneumatic pump provided by the present invention

Figure 4 is another embodiment of a high viscosity non-pulsating pneumatic pump provided by the present invention

Cross-sectional configuration diagram

5, 5a is an example of the operating state of the high viscosity pulsation-free pneumatic pump provided by the present invention

Time profile

Figure 5a illustrates the operating state of the high viscosity non-pulsating pneumatic pump provided by the present invention

A lumbar excerpt profile

Figure 6 illustrates the operating state of the high viscosity non-pulsating pneumatic pump provided by the present invention

A cross section

Figure 6a illustrates the operating state of the high viscosity non-pulsating pneumatic pump provided by the present invention

A lumbar excerpt profile

■ Explanation of symbols used in main part of drawing ■

1: (High viscosity no pulsation) Pneumatic pump 2: Valve unit

3: pneumatic unit 4: body

5: inlet pipe 6: discharge pipe

7,7a: check valve 8,9: connection pipe

10: cylinder 11, 12: pneumatic chamber

13,14: piston 15: piston rod

16: spring 17: retaining nut

18: pumping chamber 19: pumping piston

20,21: spring 22,23: pusher

24, 25: bulkhead 26, 27: valve rod

26a, 27a: valve 28, 29: valve hole

30: orifice 31: communication tube

32: air supply pipe 33: air discharge pipe

34: valve 36: fixing bolt

37: fixing nut

Claims (3)

In constructing a high viscosity non-pulsating pneumatic pump (1); The high viscosity non-pulsating pneumatic pump (1) and the valve unit (2) for intermitting the inflow and discharge of liquid water, A pneumatic unit (3) for cooperating with the valve unit (2) to receive air from the air compressor and perform liquid inflow and discharge at pneumatic pressure; The valve unit 2 includes a branch body 4 in which the liquid inlet pipe 5 and the discharge pipe 6 are installed with the check valves 7 and 7a; Connecting pipes 8 and 9 connected to the pumping chamber 18 of the pneumatic unit 3 between the check valves 7 and 7a; The pneumatic unit (3) is a cylinder (10) consisting of an intermediate pumping chamber (18) formed by the pneumatic chamber (11, 12) and the partitions (24, 25) to the left and right, The piston rod (15) is slidably installed on the pneumatic chamber (11, 12) and the pumping chamber (18), and the pistons (13, 14) are elastically installed at both ends, and the pumping piston (19) is fixed in the middle. Wow, A spring 16 elastically interposed with a fixing nut 17 to the outside of the pistons 13 and 14 fitted at both ends of the piston rod 15, and a spring having a different elastic modulus inside the pistons 13 and 14; Disc-shaped pushers 22 and 23 that are elastically installed using (20, 21), The valves 24 and 25 have valve holes 28 and 29 penetrating laterally and have valves 26a and 27a left and right to selectively open and close the valve holes 28 and 29 while reciprocating left and right. Rods (26, 27), An orifice 30 which communicates the valve holes 28 and 29 on the partition walls 24 and 25; A separate communication tube 31 for communicating the left and right pneumatic chambers 11 and 12 with each other, An air supply pipe 32 and an air discharge pipe 33 for supplying and discharging air supplied from the air compressor onto a plurality of valve holes 28 and 29 formed in the partition walls 24 and 25; The air supply pipe 32 is provided with a valve 34 for adjusting the pumping speed; High viscosity non-pulsating pneumatic pump, characterized in that consisting of a fixed bolt 36 and a fixed nut (37) for assembling the cylinder (10). The method of claim 1; The communicating tube 31 is a high-viscosity pulsating pneumatic pump, characterized in that to communicate with both ends of the pneumatic chamber (11,12). The method of claim 1; The communication tube 31 is a high viscosity non-pulsating pneumatic pump, characterized in that configured to communicate with each other the central portion and the outer portion of the two pneumatic chambers (11, 12) as a starting point.