RS20220782A1 - Rubber balloon for water pump suction hose - Google Patents

Abstract

The rubber balloon (30) for the suction hose (6) of the water pump (10) is characterized in that the system consisting of the rubber balloon (30) which is pulled onto the beginning of the suction hose (6) which is connected to the pump (10) at the other end. In addition to the pump (10), suction hose (6) and rubber balloon (30), the system also consists of a discharge hose (12) and a power source (13). The rubber balloon (30) does not allow water to fall into the well (1) while the pump (10) and the suction hose (6) are being filled and the pump (10) is not put into operation. After filling the pump (10) and the suction hose (6) and starting the pump (10), the rubber balloon (30) breaks against the tip (32) of the needle (31) and creates a continuous water column from the well (1) to the pump (10). After the bursting of the balloon (30), the water from the pump (10) cannot fall into the well (1), because the non-return valve (20) is mounted behind the pump.

Description

RUBBER BALLOON FOR WATER PUMP SUCTION HOSE

Field of technology to which the invention relates

The invention, generally speaking, falls into the field of applied electrical engineering, i.e. the field of electrical machines, whereby the subject matter of the invention also extends into the field of construction, i.e. mechanical engineering.

Technical problem

The technical problem solved by the present invention consists of the following: Filling the suction hose or pipe of an electric or motor pump with water through a water filling opening without a check valve at the beginning of the suction hose or pipe that is immersed in the well. By using a rubber balloon at the beginning of the pipe or suction hose, the check valve is changed once, thereby reducing the dimensions of the structure, and the application of the present invention in some cases increases the pump flow.

State of the art

A centrifugal pump, depending on its design, either has a self-priming of a few centimeters or none at all. In order for the pump to be able to draw water from the maximum depth of the factory-declared suction, usually 8-10m and less, the entire system, pump and suction hose must be filled with water before starting the pump.

A system is known that contains a centrifugal pump, a suction hose and a non-return valve at the beginning of the suction hose. Air is eliminated from the system by pouring water into the system through a filling hole on the pump itself. Water is poured into the pump and suction hose using a funnel into the filling hole, which is usually closed with a screw.

A system that includes a hand pump is also known. A pump is connected to a branch on the hand pump pipe via a non-return valve. Putting the pump into operation requires first that the hand pump draws water with its vacuum and then that the motor or electric pump is filled with water along with the suction pipe to the non-return valve. Water is poured into the pump and suction pipe using a funnel into the filling hole, which is usually closed with a screw.

Unlike a centrifugal pump, which does not have self-priming, a self-priming diaphragm pump has a self-priming of several meters, most often 2m. For a given height, a diaphragm pump can draw water by creating a vacuum even without a check valve. By adding a check valve to the beginning of the suction hose or suction pipe, a diaphragm pump can draw water from a depth of 8-10m.

Generally speaking, when a pump draws water from a certain depth, a check valve is necessary before the pump on the suction hose. The function of the check valve is to prevent the water used to fill the pump and suction hose from falling into the well when filling with water.

The invention arose as an upgrade and improvement of the author's application "PROCEDURE FOR FILLING A PLASTIC FLEXIBLE SUCTION HOSE OF A SELF-PRIMING DIAPHRAGM PUMP" recognized by the Intellectual Property Office of the Republic of Serbia (2014/340 RS No. 55013) and WO/215/199569.

Exposition of the essence of the invention

In some technical situations, it is necessary to pump water through a hose with a check valve at the beginning. The pump is often installed next to a small-diameter pipe, usually a hand pump pipe. There is a well with water under the pipe. Pushing a suction hose with a check valve is only possible if the check valve is small. The small dimensions of the check valve are a bottleneck for the system, and the system flow is significantly reduced. For most pumps, this design is unsuitable due to the size of the check valve.

In order for the pump to work, the entire system must be full of water. It is necessary to fill the pump and the suction hose with water without letting the water fall into the well. The non-return valve can also be installed behind the pump. The function of the non-return valve installed in this way is to let water out of the pump in the forward direction when the pump is running, or to create a vacuum in the reverse direction so that water does not fall into the well when the pump is not running. So, with this design, when the non-return valve is behind the pump, the pump draws water when it is running and water from the pump cannot fall into the well when the pump is not running. It is only necessary to fill the system with water for the first time.

By adding a rubber balloon to the beginning of the suction hose, so that the suction hose enters the balloon and the balloon wraps around the hose inlet, water cannot fall out when the pump and suction hose are filled. The balloon needs to be fixed to the suction hose and this is easiest to do with plastic adhesive tape or a rubber band. When the system is first assembled and lowered into the well, water from the pump and suction hose cannot fall into the well because there is a rubber balloon at the beginning of the suction hose. The pump is filled through the filling hole on the pump. When we filled the pump, the water from the well to the top of the pump is only separated by the balloon at the beginning of the suction hose. Since the pump is at some height above the well, the balloon is slightly bulging towards the well due to the weight of the water and pressure. When the pump is started, the balloon slowly contracts and then begins to enter the suction hose. The balloon then enters the suction hose further and at a certain pressure it bursts. When the balloon bursts, there is a column of water from the bottom of the well to the top of the pump. The pump operates smoothly because the balloon has burst. After the pump is turned off, water cannot flow into the well because a non-return valve is installed behind the pump. When installing the balloon on the suction hose, care should be taken to first pull the balloon back and then secure or wrap it with adhesive tape or a rubber band to prevent pieces of the burst balloon from getting into the pump. When a stretched balloon bursts, the balloon bursts in the middle of the hose and pulls it back and no longer has contact with the water flow going to the pump.

Brief description of the draft images

Figure 1 shows a cross-section of a well and a pump with a check valve at the beginning of the suction hose.

Figure 2 shows a cross-section of a check valve.

Figure 3 shows a cross-section of the suction hose.

Figure 4 shows an electric water pump.

Figure 5 represents a reamer, a plate pin, or a presser.

Figure 6 shows the appearance of the inlet section of the suction plastic hose pierced with a zipper.

Figure 7 shows the appearance of a rubber balloon.

Figure 8 shows the appearance of a rubber balloon threaded onto the inlet of a plastic suction hose pierced with a zipper.

Figure 9 shows the appearance of the rubber balloon stretched backwards at the beginning of the suction hose.

Figure 10 shows the appearance of waterproof plastic self-adhesive tape or insulating tape.

Figure 11 shows the appearance of a rubber band or tire in the form of a hollow cylinder.

Figure 12 shows the appearance of a backward-stretched rubber balloon at the beginning of the suction hose, which is pierced with a staple gun and secured with two rubber bands or self-adhesive tape.

Figure 13 shows the appearance of a backwardly stretched rubber balloon at the beginning of the suction hose without a needle piercing the suction hose.

Figure 14 shows the appearance of a backward-stretched rubber balloon at the beginning of the suction hose, fixed with two rubber bands or self-adhesive tape.

Figure 15 shows the layout of the complete system with the balloon at the beginning of the suction hose, the suction hose, the pump and the outlet hose before the suction hose is immersed in the well.

Figure 16 shows the appearance of the complete system mounted in a well with a balloon at the beginning of the suction hose, suction hose, pump and outlet hose.

Figure 17 shows the appearance of a backward-stretched rubber balloon at the beginning of the suction hose with a spigot piercing the suction hose immediately after filling the pump and suction hose with water.

Figure 18 shows the appearance of a backwardly stretched rubber balloon at the beginning of the suction hose with a zipper piercing the suction hose immediately after the pump is started, and before the balloon bursts.

Figure 19 shows the appearance of a backwardly stretched rubber balloon at the beginning of the suction hose without a spigot immediately after starting the pump, and before the balloon bursts.

Figure 20 shows the appearance of a backward-stretched rubber balloon at the beginning of the suction hose without a spigot after the pump is started and after the balloon bursts.

Figure 21 shows the appearance of the fork with a plug that is used to fill the pump when the pump does not have a filling opening.

Figure 22 shows the appearance of the complete system mounted in a well with a balloon at the beginning of the suction hose, suction hose, pump, pump filling branch and outlet hose after immersing the suction hose in the well.

Figure 23 shows the appearance of a hand pump with a well under the pump.

Figure 24 shows the layout of the complete system mounted in a well under a hand pump with a balloon at the beginning of the suction hose, suction hose, pump and outlet hose.

Detailed description of the invention

Figure 1 shows a pump marked with the symbol 10 to which a suction plastic hose 6 is attached, at the beginning of which a non-return valve 20 is attached, which is immersed in the well 1. A drain hose 12 is also attached to the pump 10. The pump 10 is mounted on a stand 5 next to the well 1 itself. Before putting the pump 10 into operation via the switch 14 and the power source 13, it is necessary to fill the pump with water through the filling opening 11 on the pump 10. After filling the pump 10 and the plastic suction hose 6 with water, the filling opening 11 is usually closed with a screw. The pump 10 is only filled with water for the first time because water cannot leak through the non-return valve 6, which is passable in the direction from the well 1 to the pump 10. The figure represents a known pump connection system. It is necessary to install a non-return valve 20 at the beginning of the suction hose 6 so that water does not flow into the well 1 when the pump 10 is not running.

Figure 2 shows a check valve 20. The check valve is permeable in the direction from the inlet to the outlet to which a flexible plastic hose 6 is attached. The check valve 20 consists of a spring 21 that pushes a seal or rubber band 22 which, when the check valve 20 is closed, rests on the body of the check valve 23. When there is water pressure between the inlet and outlet, the check valve 20 is open so that the seal or rubber band 22 does not rest on the body of the check valve 23 but is separated by a jet of water.

Figure 3 shows a cross-section of a plastic suction hose 6. The plastic suction hose 6 should be flexible and can be ribbed or smooth. Ribbed hoses are more flexible.

Figure 4 shows an electric water pump 10. For the current design, it is not important which type of pump is used, but what is important is that the pump creates fluid pressure from the inlet to the outlet. The pump can be a motor-driven one powered by fossil fuel or electric. The inlet of the pump 10 is marked with 15 and the outlet of the pump 10 is marked with 16. An electric centrifugal pump 10 is assumed, which is powered by an electrical energy source 13. Filling the pump 10 when it is empty is done through the filling opening 11 on the pump 10. After filling the pump and the suction hose 6, the opening 11 is closed with a screw with a gasket. A couple of liters of water are needed to fill the suction hose 6 and the pump 10.

Figure 5 shows the appearance of a reamer 31 or a presser with a blade 32 that pierces a rubber balloon 30. The reamer 31 can also be a flat pin.

Figure 6 shows the top of the suction plastic hose 6 pierced by a pin 31. The wall of the plastic suction hose 6 is a few millimeters thick so that the pin 31 can easily pierce only the plastic hose 6. The pin is fully inserted into the hose. The distance from the beginning of the suction plastic hose to the pin is approximately equal to the radius of the hose and less.

Figure 7 shows the appearance of a rubber balloon 30. The balloon is made of rubber or latex. Decorative balloons can also be used.

Figure 7 shows the shape of a decorative rubber balloon for ease of understanding. The best shape of the balloon is in the form of a cylinder, which is open on one side, and which is threaded onto the suction hose 6. Since the rubber balloon is extremely elastic, it follows the shape of something hard to which it is attached. Some balloons burst under strong pressure, while others do not. Therefore, a pin 31 is inserted that pierces the balloon 30 which is threaded onto the suction hose 6.

Figure 8 shows a cross-sectional view of a rubber balloon 30 threaded onto the beginning of a suction hose 6 that is pierced by a lance 31.

Figure 9 shows a cross-sectional view of a balloon 30 threaded onto the beginning of the suction hose 6, which is pierced by a spring 31. The rubber balloon 30 is tightened and pulled towards the middle of the suction hose 6. The thus tightened and stretched rubber balloon 30 needs to be fixed to the beginning of the suction hose 6.

Figure 10 shows the appearance of a plastic self-adhesive tape 41 that serves to fix the stretched rubber balloon 30. The adhesive tape is made of stretchable plastic. Such an adhesive tape is used to insulate electrical cables. The balloon that is stretched from the inlet of the suction hose 6 to the middle on the outside of the suction hose 6 needs to be wrapped with adhesive tape 41. The adhesive tape 41 is wrapped a few centimeters from the beginning of the suction hose 6 with the stretched balloon 30 to almost the very end of the balloon.

Figure 11 shows the appearance of the rubber band 40 for fixing the rubber balloon to the suction hose 6. To fix the rubber balloon to the outside of the suction hose 6, it is necessary to use either adhesive tape 41 or rubber bands 40. The rubber bands 40 have a smaller diameter than the diameter of the suction hose 6. By stretching the rubber band and placing the rubber band from the outside over the stretched balloon 30, the balloon 30 remains stretched because it is held by the rubber band 40.

Figure 12 shows the appearance of a rubber balloon 30 threaded onto the beginning of the suction hose 6 and stretched and fixed with two rubber bands 40 or adhesive tape. The beginning of the suction plastic hose 6 is pierced with a pin 31 at a distance less than the radius of the hose 6 from the beginning of the suction hose 6.

Figure 13 shows the appearance of a rubber balloon 30 threaded onto the beginning of the suction hose 6. The balloon is stretched. There are balloons that burst even at lower pressure, so the expander 31 is not needed.

Figure 14 shows a rubber balloon 30 threaded onto the beginning of the suction hose 6 and stretched and fixed with two rubber bands 40 or adhesive tape. This figure shows a balloon that does not require a spacer 31 because it bursts at lower pressure. The balloon bursts at a pressure greater than 0.8-1.0 bar.

Figure 15 shows the appearance of the entire system before the suction hose 6 is immersed in the well 1. The symbol 30 indicates the tip of the rubber balloon 30 protruding at the beginning of the suction hose 6. The suction hose 6 is connected to the pump 10 at its other end. The rubber balloon 30 is stretched towards the middle of the suction hose 6 and fixed with several rubber bands 40 or adhesive tape 41 to the beginning of the suction hose 6. The pump 10 has a pump filling opening 11. At the outlet of the pump 10, a non-return valve 20 is mounted, which is permeable from the pump 10 to the outlet hose 12. The pump is powered by electricity via a switch 14 from the power source 13.

Figure 16 shows the overall system installed in well 1. The pump 10 and the suction hose 6 are not filled with water. The symbol 30 indicates the tip of the rubber balloon 30 protruding from the beginning of the suction hose 6. The balloon 30 is stretched and fixed with several rubber bands 40 or adhesive tape 41 to the beginning of the suction hose 6 at a distance of less than a few centimeters. There is air in the suction hose 6 and the pump 10, and the suction hose 6 is immersed in well 1 to a depth of up to 1 m below the water surface of well 1. The tip of the balloon 30 is very slightly bent towards the middle of the suction hose with a pressure of less than 0.1 bar. The suction hose 6 is connected at its other end to the pump 10. The pump 10 has a pump filling opening 11. At the outlet of the pump 10, a non-return valve 20 is mounted, which is permeable from the pump 10 to the outlet hose 12. The pump is powered by electricity via a switch 14 from a power source 13. The function of the non-return valve 20 is to prevent water from the pump 10 and the suction hose 6 from flowing into the well 1 after the pump 10 is started.

Figure 17 shows the appearance of the rubber balloon 30 where the pump 10, the suction hose 6 and the balloon 30 are filled with water. The pump 10 has not yet been put into operation. The rubber balloon 30 is threaded onto the beginning of the suction hose 6 and tightened and fixed with two rubber bands 40 or adhesive tape. The beginning of the suction plastic hose 6 is pierced with a pin 31 at a distance less than the radius of the hose 6 from the beginning of the suction hose 6. The rubber balloon 30 is immersed in the water in the well 1 together with the beginning of the suction hose 6. The beginning of the suction hose with the tip of the balloon is at the working depth. Since the weight of the water from the suction hose 6 and the pump 10 is greater than the pressure of the water from the well 1, the rubber balloon 30 is bulged towards the well l. The height of the water column is slightly less than 8m, so the pressure on the balloon from the suction hose 6 to the well is less than 0.8 bar. As the entire system is filled with water, the pump 10 can be put into operation.

Figure 18 shows the appearance of a rubber balloon 30 submerged below the water surface of a well 1 immediately after the pump 10 has been started. The pump 10 has been filled with water and has just started working. The rubber balloon 30 is threaded onto the beginning of the suction hose 6 and is tightened and fixed with two rubber bands 40 or adhesive tape. The beginning of the suction plastic hose 6 is pierced with a sprue 31 at a distance less than the radius of the hose 6 from the beginning of the suction hose 6. As the pump 10 is started, the pump will draw water. There is now pressure from the well 1 towards the suction hose 6 and the pump 10. Under the action of the pressure, the balloon 30 will bend towards the middle of the suction hose 6. At the moment when the rubber balloon 30, which is bent, hits the top of the sprue 32, the balloon will burst.

Figure 19 shows the appearance of the rubber balloon 30 submerged below the water surface of the well 1 immediately after the pump 10 is started when the nozzle 31 is not used. As the pump 10 is started, the pump will draw water. There is now pressure from the well 1 towards the suction hose 6 and the pump 10. Under the action of the pressure, the balloon 30 will bend towards the middle of the suction hose 6. The balloon 30 will bend into the suction hose 6 a few centimeters until it bursts. The balloon should burst at a pressure greater than 1 bar. Otherwise, it can choke the pump 10, that is, the pump 10 does not have enough power to draw water. Therefore, it is much more rational to use the nozzle 31.

Figure 20 shows the appearance of the rubber balloon 30 after bursting, immediately after the pump 10 was put into operation. Since the rubber balloon 30 was previously stretched, the tip of the balloon bursts when struck by the tip of the reamer 32. Also, if the reamer 31 is not used, the balloon bursts at critical pressure.

Because the balloon 30 is stretched after bursting, the tip of the burst balloon 30 is pulled outward toward the center of the suction hose 6 and reaches the rubber band 40.

It is extremely rare for a piece of the ruptured balloon 30 to end up in the suction hose 6 and ultimately in the pump 10. Since the balloon 30 is made of thin rubber, the pieces of thin rubber do not pose any danger to the pump 10.

Figure 21 shows the appearance of the fork 70 for filling the pump 10, which does not have a filling opening 11. The fork is connected to the suction hose 6 and on the other side to the pump 10 or suction hose 6. The fork has a filling opening and a plug 71 that closes the fork 70.

Figure 22 shows a view of the complete system that uses a branch 70 for filling the pump 10 and the suction hose 6 with water. Figure 22 is identical to Figure 16, with the difference that instead of the pump filling opening 11, a branch 70 is used for filling the pump 10.

Figure 23 shows the layout of a hand pump 80. The symbol 81 indicates the inlet pipe of the hand pump 80. The symbol 84 indicates the holes on the inlet pipe 81 for the entry of water from the well 83 into the inlet pipe 81.

Figure 24 shows the appearance of the complete system mounted on the hand pump tube 81. Figure 24 is identical to Figure 16, with the difference that the suction hose 6 with the rubber balloon 30 at the top, instead of being immersed in the well 1, is pushed into the hand pump tube 81.

Method of industrial or other application of the invention

The application of the invention is in all situations where it is necessary to move the non-return valve located before the pump after the pump. The largest application is certainly given in Figure 24. When a rubber balloon 30 is used at the beginning of the suction hose 6, the dimensions or cross-section of the hose 6 are significantly smaller than the dimensions of the non-return valve 20.

By using a rubber balloon 30, instead of a check valve 20, at the beginning of the suction hose 6, given in figures l. and 16. the water flow with the same pump increases. This difference is greatest in a situation where the check valve is of small dimensions. When the pump 10 is used above the hand pump pipe 81 as in figure 24. the difference between the system with the balloon 30 figure 24. and the check valve 20 figure 1. at the beginning of the suction hose can be 30-50% in the flow rate. In addition, no plumbing work is required. The suction hose 6 with the rubber balloon 30 is simply lowered either into the well 1 or into the hand pump pipe 81.

Claims (5)

Patent claims 1. The rubber balloon (30) for the suction hose (6) of the water pump (10) is characterized in that it is made of rubber or some similar material and bursts at a certain pressure. 2. The rubber balloon (30) for the suction hose (6) of the water pump (10) is indicated by the fact that it is put on the very beginning of the suction hose (6), stretches towards the middle of the suction hose (6) and is attached to the suction hose (6) with rubber bands (40) or adhesive tape (41). 3. The rubber balloon (30) for the suction hose (6) of the water pump (10) is designed to prevent the water used to fill the pump (10) and suction hose (6) from falling into the well (1) before the balloon (30) bursts. 4. The rubber balloon (30) for the suction hose (6) of the water pump (10) is characterized in that, after being immersed in a well (1) or a hand pump tube (81) and after filling the pump (10) and the suction hose (6) with water, it bursts after the pump is started and a certain pressure is created, creating a continuous water column from the pump (10) to the well (1). 5. The rubber bellows (30) for the suction hose (6) of the water pump (10) is characterized by the fact that after filling the water pump (10) and the suction hose (6) with water at the filling opening (11) located on the pump (10) and starting the pump (10) it is plugged against the blade (32) of the reamer (31).