KR20120017624A - Well cleaning apparatus with rotary and high pressure water - Google Patents

Abstract

PURPOSE: A high-pressure rotary cleaning equipment for a tube well is provided to simplify a structure by using a self-rotating method without power and improve work efficiency by controlling rotating speed according to jetting pressure. CONSTITUTION: A high-pressure rotary cleaning equipment for a tube well comprises a self-rotary jetting and cleaning device(40). The self-rotary jetting and cleaning device comprises a mechanical chamber, a jetting extension flow unit(42), a deflected flow unit(43), and a rotary jetting nozzle unit(44). The mechanical chamber prevents leakage of high pressure cleaning water. The nozzle is rotatably installed in the mechanical chamber. The jetting extension flow unit supplies the high pressure cleaning water passing through a high pressure hose and the mechanical chamber into at least one nozzle. The deflected flow unit is formed toward a flow direction of the high pressure cleaning water at a predetermined angle. The rotary jetting nozzle unit self-rotates by jetting the high pressure cleaning water supplied from the deflected flow unit.

Description

WELL CLEANING APPARATUS WITH ROTARY AND HIGH PRESSURE WATER}

The present invention relates to a tubular cleaning apparatus, and more particularly, because the high-pressure washing water is rotated and sprayed, the washing effect is excellent, and because it rotates in opposite directions in the vertical direction, it prevents the lake from twisting and maximizes the washing efficiency. It relates to a high-pressure rotary well cleaning device that can be.

In general, in order to supply water for agriculture, industrial use, and living water in farming and fishing villages, a well is drilled through the ground, a pumping pipe is inserted into the well, and ground water is pumped using a pump.

In other words, the conventional pumping device for the development of groundwater is to excavate the ground to form a well, and then insert and install a casing, which is a circular pipe, on the inner wall of the well so as to be in close contact with the proper position of the well. It is inserted into the well, and the adapter is connected to the water pipe and the water pipe.

This pumping device is usually ground water flowing between the rock mass is collected in the well through the rock hole, the ground water collected in the well is forced to be sucked by the operation of the underwater motor pump is supplied to the water pipe along the pump pipe.

Groundwater is usually grounded by the sedimentation sludge, which flows into the well, and the groundwater sludge, which flows with the groundwater. As a result of the sharp decline, the government has not been able to fulfill its role and is currently dealing with waste.

In addition, if the wells of the groundwater are not cleaned regularly, various contaminants such as scales and scales will stick to the inner walls of the wells, and the soil sludge introduced along the rock holes will be loaded on the bottom of the wells. Reaching the submersible motor pump to worsen the water quality of the groundwater, as well as the damage of the submersible motor pump will occur frequently.

Patent No. 10-0497815 discloses the vortex causing the vortex of compressed air supplied to the inside of the well and discharges it to the side to clean the inside of the well, and at the same time according to the pressure difference between the cleaning device and the bottom of the well. Disclosed is a technique of using the lifting force to suck up the sewage and sludge loaded on the bottom surface to discharge to the outside.

Patent No. 10-0835138 is equipped with a washing machine conveying device can easily move the washing machine in the well, and the compressed air of high pressure through the nozzle portion of a simple structure that changes the flow of compressed air from downward to upward inclined direction Disclosed is a groundwater washing apparatus for simultaneously cleaning and discharging contaminants or soil sludge with the pressure difference generated by the pressure difference.

The techniques of the registered patents also have limitations in efficiently cleaning the wells with less power by cleaning various wells such as scales and scales on the inner wall of the wells by cleaning the wells of the groundwater.

In addition, the techniques are not only limited to the efficient cleaning of the inside of the well by similar methods to air surging, but also the use of compressed air of less than 50 [Bar]. There is a problem that can not be solved.

The present invention for solving the above problems is to be sprayed while the high pressure washing water is rotated, the washing is evenly distributed over the entire surface of the well to be cleaned, there is an object to optimally clean the foreign matter.

In addition, since the rotary spray nozzle has an injection angle to be deflected in the radial direction, the self-rotating method that does not require a separate power for rotation is not only simple in structure but also can adjust the rotational speed according to the injection pressure, thereby improving work efficiency. It is to be possible.

And by placing the spray nozzles to be rotated in the opposite direction up and down, to prevent the kink of the lake and to maximize the cleaning efficiency is to wash.

The present invention for achieving the above object,

In the well cleaning device which is supplied from the ultra high pressure water generating motor (8) and the ultra high pressure water generating pump (9) to the high pressure hose (20) is supplied to a self-rotating jet washing machine (40) located in the well (100) , The self-rotating jet washing machine 40 provided at the end of the high pressure hose 20,

A mechanical chamber 30 to allow the nozzle to be rotatable without leaking the high pressure washing water;

An injection extension flow section 42 through which the high pressure wash water passing the high pressure hose 20 and the mechanical chamber 30 is supplied to at least one nozzle;

A deflection flow portion 43 for connecting a nozzle to form a predetermined angle with a traveling direction of the high pressure washing water sprayed from the injection extension flow portion 42; And

It is provided with a high-pressure rotating well cleaning device comprising a rotary spray nozzle unit 44 for self-rotating by injecting a high-pressure washing water supplied from the deflection flow portion (43).

The spray extension flow section 42 and the deflection flow section 43; And it is preferable that the portion consisting of the rotary spray nozzle portion 44 is formed of a plurality of stages in the vertical direction.

It is preferable that the nozzle is formed in two stages in the vertical direction, and the rotary spray nozzles 44 rotate in opposite directions to each other.

Preferably, the rotary spray nozzle 44 is provided in plural in a uniform angle with respect to the horizontal direction.

The predetermined angle of the deflection flow portion 43 is preferably 30 ° to 60 °.

It is preferable that the roller 21 for supporting the high pressure hose 20 is provided upward of the self-rotating jet washing machine 40 and the folding support 22 for supporting the roller 21 is provided.

The present invention constituted as described above has an excellent effect that the washing is evenly performed evenly over the entire inner wall surface of the well being the washing target because it is sprayed while rotating the high pressure washing water.

It is possible to solve the pore blockage outside the well, which was the root cause of the decrease of the groundwater which could not be solved by the existing equipment, and in particular, it requires a separate power for the rotation because the spray nozzle has a spray angle to deflect the radial direction. The self-rotating method is not only simple structure, but also can adjust the rotational speed according to the injection pressure has an excellent effect of improving the work efficiency.

And by disposing the spray nozzles to be rotated in the opposite direction up and down to prevent the kink of the lake and can be cleaned to maximize the cleaning efficiency.

1 is a schematic configuration diagram of a high-pressure rotation well cleaning device according to the present invention.
Figure 2 is a detailed illustration of the rotary spray nozzle of the high-pressure rotary well cleaning apparatus according to the present invention.
Figure 3 is an illustration of the injection angle of the high pressure washing water sprayed on the top view of the high pressure rotary well cleaning device according to the present invention.
Figure 4 is a vertical configuration of the self-rotating jet washing machine of the high-pressure rotation well cleaning device according to the invention.
Figure 5 is a horizontal configuration of the self-rotating jet washing machine of the high-pressure rotation well cleaning device according to the invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

High pressure rotating well cleaning device 10 according to the present invention, as shown in Figures 1 to 5, the high-pressure washing water from the ultra high pressure water generating motor (8) and the ultra high pressure water generating pump (9) to the high pressure hose (20) It is for the high-pressure rotary well cleaning device 10 is supplied to the self-rotating jet washing machine 40 is located in the well 100 to be cleaned.

In particular, the self-rotating jet washing machine 40 is provided at the end of the high-pressure hose 20, the self-rotating jet washing machine 40 is provided with one or a plurality of rotary jet nozzles 44 so that the supplied high-pressure washing water is rotated sprayed It may be provided. By rotating the spray nozzle (44) to be injected during the rotation in the self-rotating jet washing machine 40, the high pressure washing water is evenly sprayed on the inner wall of the well (100) to be cleaned, so that it can be cleaned without gaps. In addition, the high-pressure water of 300 [Bar] or more close to the well can be sprayed to solve the clogging phenomenon of the outside of the well, which is the root cause of the decrease in the amount of groundwater that could not be solved with the existing equipment.

Looking at the detailed configuration of the self-rotating jet washing machine 40, a mechanical chamber 30 is provided to allow the rotary jet nozzle 44 to be rotatable without leakage of ultra-high pressure with respect to the high-pressure hose (20).

This mechanical seal (30) is a stable rotation by the coupling of the fixed ring and the rotating ring, etc. about the axis that rotates at a high speed, to prevent the fluid passing through the interior of these coupling rotating members will be. A pump or a blower, in particular, the automatic reel 12 or roller 21 for the automatic winding of the hose, and is coupled around the rotary spray nozzle 44 can be used in most of the packing. Therefore, the high pressure washing water by the high pressure hose 20 and the automatic reel 12, the self-rotating jet washing machine 40, the rotary jet nozzle 44, etc. by the mechanical chamber 30 or the reel mechanical chamber 13 according to the present invention. It is supplied smoothly.

The packing is also used to prevent leakage of the fluid, but when the packing is used, the repulsive force caused by the packing friction is so large that the nozzle may not rotate. The packing is therefore applicable to pumps and blowers but is difficult to apply to the apparatus of the present invention. The mechanical seal differs from the packing in that its function is similar but very smoothly it can rotate the machine without the need for large torque.

In addition, the injection extension flow portion 42 and the injection extension flow portion 42 to supply the high pressure washing water passing through the high pressure hose 20 and the mechanical chamber 30 to one or a plurality of rotary spray nozzles 44. It is provided with a deflection flow portion 43 formed in connection with the rotary spray nozzle 44 by forming an injection angle of the high-pressure washing water to be injected.

In particular, it is provided in the form of a rotary spray nozzle 44 to be sprayed by deflecting at a predetermined angle to form a high-pressure high-pressure washing, the rotary spray nozzle 44 is provided opposite to both sides. On the other hand, even when a larger number of rotational injection nozzles 44 are provided while forming a predetermined angle with each other, the rotational injection nozzles 44 are automatically rotated by the injection force according to the deflection and bending angle of the injection. As the 44 is rotated about the center of the self-rotating jet washing machine 40, it is a feature of the present invention that a power source or configuration for separate rotation is not necessary.

High pressure rotary well cleaning device of the present invention should be as close as possible to the well screen, the nozzle should be rotated and the injection pressure through the nozzle 300 [Bar] or more can be effectively washed. It can be seen experimentally that the washing power of the high pressure water through the nozzle in water drops rapidly as the distance from the nozzle outlet increases. In the experiment of removing foreign matter (barnacle, etc.) attached to the pier surface in the water by the high pressure water injector, the nozzle can be effectively cleaned at a distance of more than 10 [cm] from the nozzle when the nozzle's injection pressure is over 300 [Bar].

In the case of air surging using compressed air, which is widely used for cleaning wells in Korea, the pressure is less than 50 [Bar], and soft foreign substances on the surface of the wells can be cleaned, but relatively hard scales and outside the wells and around the wells It is not possible to solve the cause of the groundwater deterioration such as the blockage of micropores, and the brush method also has a limitation that can clean only the inner surface of the well.

On the other hand, when the ultra-high pressure injection method is applied, the pressure is effectively transmitted to a distance of 10 [cm] or more from the nozzle, thereby effectively removing the scale and scale inside the well as well as clogging of the surrounding micropores.

The characteristics of this injection method are as follows. First, if there is only a single-stage rotating nozzle device, the rotational force is continuously generated in one direction, and a high pressure hose may be twisted. Therefore, when there is a nozzle device that rotates in opposite directions in two stages, rotational forces are canceled with each other to prevent the twisting of the hose and the vibration and tilting of the rotary spray nozzle part which may additionally occur. Secondly, the inner screen and the external gravel layer of the well are first washed in the 45 ° direction by the high-pressure water sprayed at 45 ° from the upper rotating nozzle device. The washing efficiency can be maximized by secondly washing the unwashed area from the upper rotary nozzle device by the high pressure water sprayed in the direction of °.

Of course, the rotational speed may be controlled by the size of the injection angle deflected by the rotational injection nozzle 44 and the injection pressure of the high pressure washing water injected, and may be appropriately determined according to the size of the object to be cleaned or the shape and property of the foreign matter.

The cleaning force is maximum when the jetting angle of deflection of the rotary injection nozzle 44 is 45 °, and preferably within ± 15 ° based on 45 °. If the spray angle is too small, the nozzle rotational force may be reduced, and thus the washing efficiency may be reduced. If the spray angle is too large, the washing force may be relatively far from the nozzle, and thus the washing force may drop due to the rapid pressure drop of the sprayed high pressure water. Not desirable

In addition, the self-rotating jet washing machine 40 is provided at the end of the high-pressure hose 20 connected to the ultra-high pressure generating motor 8 and the ultra high pressure generating pump 9 as described above. ) Is provided with a roller 21 to support the high pressure hose 20 upwards, and is provided with a folding support 22 to support the roller 21.

Of course, the high-pressure water generating motor 8 and the ultra high-pressure water generating pump 9, the high-pressure hose 20, the high-pressure hose 20, the high-pressure hose 20, so that the high-pressure washing water can be supplied to the self-rotating jet washing machine 40. Automatic reel 12 to be wound or unwound by the excess length to adjust the length, and reel mechanical chamber 13 for coupling the high pressure hose 20 to the automatic reel 12, etc. This will be prepared. In addition, the reel mechanical chamber 13 and the like together with the mechanical chamber 30 allow the corresponding member to rotate without leakage of ultra high pressure water.

In addition, the ultra high pressure water generating motor 8 and the ultra high pressure water generating pump 9 are compact in size and weight, which is convenient for movement and easy to carry. And the high pressure washing water to form a high pressure by the ultra high pressure water generating motor 8 and the ultra high pressure water generating pump 9 will be able to form a high pressure to the extent that foreign matter can be removed from the wall in the well (100). . For example, the ultra-high pressure washing water may form the injection pressure by the maximum high pressure water generating motor 8 and the ultra high pressure water generating pump 9 up to 400 Bar water jetting, and the shape of the well 100, the well 100 It may be provided to be formed at an appropriate pressure depending on the purpose and the kind or nature of foreign matter on the inner wall of the well. If the well is formed of a weak material such as PVC, spraying high pressure water above about 300Bar may damage the well, so the injection pressure should be adjusted according to the material of the well. In addition, it may be provided with a high pressure control device for controlling the pressure is injected.

In addition, the motor driven control reel (12) may be provided to automatically adjust the length of the high pressure hose by providing a motor and a control device. And the folding support 22 for supporting the roller (Roller, 21) for supporting the middle of the high-pressure hose 20 may be made in the form of a roller tripod (three rollers).

In addition, in the high-pressure rotating well cleaning device (10) provided as described above, the rotary spray nozzle (44) of the self-rotating jet washing machine (40) for spraying the high-pressure washing water during the rotation to a plurality of to make a uniform angle with respect to the horizontal direction It is provided.

Of course, the rotary spray nozzle 44 may be configured as a single, but it may be preferable to provide a plurality in order to increase the efficiency of the rotation. In particular, two nozzles are disposed to face each other, and when three or more are formed, the angle formed by each nozzle may be uniform, so that the rotational force of the sprayed high-pressure washing water may be balanced.

In addition, the rotary spray nozzle 44 may be formed in a plurality of stages with respect to the vertical direction, and preferably may be formed in two stages. That is, in the case of a plurality of stages as shown in FIGS. 1 and 4, it is possible to prevent the high-pressure hose from twisting and to reduce the tilting, vibration reduction, and washing power of the rotating nozzle unit. In particular, it is preferable to allow the nozzles of different stages to rotate in opposite directions. Since the shape of the object to be cleaned is irregular in one direction, even if it is difficult to clean, it can be excellent in removing foreign matters because it is sprayed in both directions, and the rotating spray nozzle 44 is rotated in opposite directions to each other, the vibration generated by the nozzle rotation Can be offset to some extent.

And the flow of the high-pressure washing water in the self-rotating jet washing machine 40 flows inside the high-pressure hose 20, and is supplied to each rotary spray nozzle 44 through the mechanical chamber 30 for rotation. In particular, the injection extension flow section 42 extending outwardly from the center of the self-rotating jet washing machine 40 is formed to extend outwardly from the center of the self-rotating jet washing machine 40, such an injection extension flow section 42 It is bent at a certain angle with respect to the deflection flow portion 43 is formed. At the end of the deflection flow portion 43, a rotary spray nozzle 44 is provided to which high-pressure washing water is injected.

Therefore, since the deflection flow portion 43 and the rotary spray nozzle 44 face each other at a predetermined angle with respect to the angle extending from the rotation center in the self-rotating jet washing machine 40, the spray nozzle 44 is ejected from the rotary spray nozzle 44. High pressure wash water is also sprayed at a predetermined angle (injection angle). That is, the spraying angle at which the high-pressure washing water is injected from the rotary spray nozzle 44 is preferably adjusted to 30 ° to 60 °.

Looking at the degree of the injection angle of the deflection of the deflection flow portion 43, as shown in Figure 2, the rotary injection nozzle 44 may be provided. That is, since the flow of water through the nozzle is normal incompressibility, Bernoulli's equation can be applied.

으로 가정하면,first

Assume that

이 되고, 고압수 발생장치에 의해 P1으로 가압된 물이 대기상태로 방출될 때의 유동속도를 구할 수 있다. 고압수 발생장치에서 공급되는 물의 유량 Q=20[lpm], 압력 P1=300[bar]이므로 단위를 통일하여 계산하면 V=242.6[m/sec]이다.

Then, the flow rate when the water pressurized to P1 by the high pressure water generator is discharged to the atmospheric state can be obtained. Since the flow rate of water supplied from the high pressure water generator Q = 20 [lpm] and the pressure P1 = 300 [bar], the unit is calculated as V = 242.6 [m / sec].

And the flow rate (Q) of the water passing through the nozzle diameter D at the flow rate of V can be expressed by the following equation.

Therefore, the flow rate Q = 20 [lpm], V = 242.6 [m / sec] is substituted, and if there are four nozzles, the unit diameter is calculated per unit, and the nozzle diameter D = 0.66 [mm].

On the other hand, as shown in FIG. 3, the rotational force of the self-rotating nozzle apparatus is different according to the injection angle θ. When θ = 90 °, the rotational force is maximum but the screen cleaning effect is inferior. Therefore, the shear stress τ _θ generated by the injection angle θ and the stress σ generated by the force applied to an object can be expressed by the following equation.

In Equation 3, the maximum shear stress occurs when θ = 45 °. The maximum shear stress means that the foreign matter falls best when the high pressure water is sprayed at a 45 ° angle when the foreign matter is attached to the screen. The injection angle θ is preferably a value of 30 ° to 60 ° in consideration of the rotational force and the washing effect.

When the spray angle θ is 30 ° or less, it may not rotate well even by the high-pressure washing water sprayed from the rotary spray nozzle 44, so that the cleaning time may take a long time and the efficiency may be reduced. On the other hand, when the injection angle θ is greater than 60 °, it may be rotated too fast, and thus may not be able to remove foreign substances, which is not preferable.

The cleaning force is maximum when the spray angle having the maximum shear stress value is 45 ° and is preferably within about ± 15 ° based on 45 °. If the spray angle is more than 60 ° it is not preferable because the washing object is relatively far away from the nozzle and the washing force is dropped due to a sharp pressure drop rather than being rotated too fast to remove the foreign matter.

Therefore, when the high pressure water is injected from the nozzle, the force F generated by the law of action and reaction is the rate of change of the momentum of the fluid over time, that is, the momentum flux. It is represented by an expression.

In Equation 4, the force generated when the unit is calculated unified is F = 20.2 [N]. The rotational force M generated by substituting the injection angle θ = 45 ° and the distance = 160 [mm] can be expressed as follows.

In equation (5), a theoretical torque of 2.29 [Nm] is generated. Since the repulsive force generated by friction during mechanical seal rotation is 0.18 [Nm], the theoretical rotation is sufficient even if the resistance generated when the nozzle is rotated in the fluid is reduced. When it was designed and manufactured with θ = 45 °, it rotated most preferably in terms of rotation and washing effect.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The technical idea of the present invention should not be construed as being limited.

8: ultra high pressure water generating motor 9: ultra high pressure water generating pump
10: high pressure rotary well cleaning device 12: automatic reel
13: reel mechanical chamber 20: high pressure hose
21: roller 22: folding support
30: mechanical chamber 40: self-rotating jet washer
42: injection extension flow section 43: deflection flow section
44: rotary spray nozzle 45: centralizer
100: pavilion to be cleaned

Claims (6)

In the well cleaning device which is supplied from the ultra high pressure water generating motor (8) and the ultra high pressure water generating pump (9) to the high pressure hose (20) is supplied to a self-rotating jet washing machine (40) located in the well (100) , The self-rotating jet washing machine 40 provided at the end of the high pressure hose 20,
A mechanical chamber 30 to allow the nozzle to be rotatable without leaking the high pressure washing water;
An injection extension flow section 42 through which the high pressure wash water passing the high pressure hose 20 and the mechanical chamber 30 is supplied to at least one nozzle;
A deflection flow portion 43 for connecting a nozzle to form a predetermined angle with a traveling direction of the high pressure washing water sprayed from the injection extension flow portion 42; And
High-pressure rotating well cleaning device, characterized in that it comprises a rotating spray nozzle portion 44 to self-rotate by spraying the high-pressure washing water supplied from the deflection flow portion (43).
The method of claim 1,
The spray extension flow section 42 and the deflection flow section 43; And a portion composed of the rotary spray nozzle part 44 is formed of a plurality of stages in a vertical direction.
The method of claim 2,
The nozzle is formed in two stages in the vertical direction, the high-pressure rotating well cleaning apparatus, characterized in that the rotating spray nozzle 44 is rotated in the opposite direction.
The method of claim 1,
High-pressure rotating well cleaning device, characterized in that provided with a plurality of rotating spray nozzles 44 to form a uniform angle with respect to the horizontal direction.
The method of claim 1,
The predetermined angle of the deflection flow portion 43 is a high-pressure rotating well cleaning device, characterized in that 30 ° to 60 °.
The method of claim 1,
High pressure rotation, characterized in that the roller 21 for supporting the high-pressure hose 20 is provided upward of the self-rotating jet washing machine 40, the folding support 22 for supporting the roller 21 is provided Well cleaning device.

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