KR100904398B1 - The nozzle for washing surface of filter-bed in the filtration plant - Google Patents

Abstract

A nozzle for washing the surface of a filter basin in a purification plant is provided to operate filter basin efficiently and to improve workability with low expenses of raw materials. A nozzle for washing the surface of a filter basin in a purification plant includes a main body, an inlet, and an outlet. A plurality of jets are formed on the outlet. A rotatable impeller(120) is installed on the inside the outlet. An inclined surface(121) is formed on the top of the impeller. Three spiral vanes(122) are formed form the inclined surface to the bottom of the impeller with the same interval. The center part of the inclined surface is protruded and formed to the predetermined height. The spiral vanes are curved to a twist angle of 145~155° based on a rotary shaft. A spiral groove(123) is formed between the spiral vanes according to the inclined surface.

Description

The nozzle for washing surface of filter-bed in the filtration plant}

The present invention relates to a nozzle, and more particularly, in order to remove sludge and other foreign substances on the surface of the filter paper generated at a water purification plant, the surface of the filter media medium is cleaned by supplying the wash water from a surface wash water supply pipe or a surface wash tube. It relates to a nozzle for cleaning the filter paper surface of the water purification plant.

The filter paper of the water treatment plant handles a large amount of water every day, so the filtration capacity deteriorates over time (filter blockage phenomenon) and should be cleaned periodically.

In this case, the filter paper is backwashed, but the backwashing alone leaves a suspended material on the surface of the filtrate, which has a bad cleaning effect, and for a long time, the soil material accumulates in the filter material on the surface of the filtrate, thereby reducing the capacity of suspended solids in the filtrate and forming mud balls. Therefore, surface washing of the upper portion of the media is combined with backwashing to sufficiently wash the filter paper.

That is, the backwashing water flows back through the filter medium to remove the suspended substances held in the filter medium pores while the backwashing water flows back through the filter medium in the upper portion of the filter paper filter medium in the water purification plant. .

In addition, the surface wash water and the backwash water used for the surface washing and the backwash in the upper part of the filter media of the water treatment plant are introduced into the recovery tank through the discharge trap, the discharge tank and the reverse wash water discharge valve together with the removed suspended substance.

Here, the surface cleaning is to crush the upper layer of the earth by the shear energy caused by the strong water flow of the washing water sprayed on the surface of the filtrate and to increase the washing effect by increasing the collision and friction between the filter media.

In FIG. 1, the surface washing water supply pipe 2 is disposed to clean the surface of the filter paper of the water purification plant, and the nozzle 10 is screwed to the bottom of the surface washing pipe 3 branched from the surface washing water supply pipe 2 to the bottom. In a state of being disposed in close proximity, the surface washing water is jetted to crush and clean the sludge and other foreign matter adhering to the filter paper surface in the water treatment plant.

The impeller is rotatably inserted into the nozzle 10, and the rotating shaft of the impeller is formed by energy generated while the washing water, which is a fluid supplied from the surface cleaning pipe 3, passes through the groove between the wings of the impeller. It rotates to the center and converts into vortex and discharges to the side and downward blowholes to maintain strong cleaning power.

Under normal conditions of such an impeller, the number of wings to obtain the optimum rotational force with the maximum kinetic energy is 5 kinematics.

However, the nozzle for cleaning the surface of the filter paper of the water purification plant is generally screwed into the surface cleaning pipe 3 having a diameter of about 1 inch (25.4 mm) to spray the washing water, so that the vortex flows into the washing water supplied from the surface cleaning pipe 3. The diameter of the inner space in which the impeller is positioned to form the is limited to about 14-20 mm.

Therefore, when adopting five, the number of wings to obtain the optimum rotational force to the impeller rotatably installed in the nozzle 10, the number of wings is relatively larger than the inner diameter, so the washing between the wings becomes narrower It is difficult to secure the space between the passing blades, so that the rotational force is lowered and the discharge amount of the water flow is also reduced.

From this, as an example of the filter paper surface cleaning nozzle 10 of the water purification plant shown in Fig. 1, registered utility model No. 0378994 (designated name: cleaning spray nozzle), as shown in Figure 2, the surface washing water supply pipe ( 2) or a nozzle 10 composed of an adapter member 20 directly connected to the surface cleaning pipe 3, a socket member 30 and a nozzle head member 40 sequentially coupled to the adapter member 20. do.

Here, in the nozzle hole 43, which is an internal space of the nozzle head member 40, as shown in FIG. The wing member 50 (impeller) having two wings formed at opposite angles and formed in opposite directions toward the lower portion is inserted and installed in a rotatable state to ensure sufficient space between the wings through which the washing water passes.

At this time, the wing member 50 forms a fine gap between the wing member 50 and the nozzle hole 43 to maintain a state capable of smooth rotation at all times in the nozzle hole (43).

From this, the nozzle 10 having the configuration as described above, as shown in Figure 3, the washing water supplied from the surface washing water supply pipe 2 or the surface cleaning pipe (3) for cleaning the surface of the filter paper wing member ( 50) while generating a vortex while being sprayed to the side and the lower injection hole 44 to crush sludge and other foreign matter adhered to the large surface of the filter paper by a strong cleaning force.

However, since the wing members 50 are formed opposite to each other on the left and right sides of the protruding upper portion toward the lower side, as shown in FIG. 5, in the state of being inserted into the nozzle hole 43. Due to the slight spacing slightly biased to either side, the center of mass is eccentric from the center of rotation, and in this case is in an unbalanced state, resulting in an unbalanced weight of the whole.

Therefore, in the unbalanced state due to the eccentricity of the wing member 50, even if the washing water having a predetermined size of water pressure flows into the wing member 50, the surface can not be cleaned due to the rotation can not be rotated or the rotation and stop is irregular As the process proceeds, there is a problem such as a decrease in efficiency due to the decrease in flow rate.

From this, the impeller used for the nozzle for cleaning the filter paper surface of the water purification plant needs to smooth the flow of the wash water as a fluid by minimizing the number of wings while considering the impeller installation inner diameter that can be secured in the nozzle to balance the overall weight. Will be.

In addition, since the material of the nozzle 10 is entirely opaque to a metallic material such as stainless steel, washing water is supplied while the wing member 50 is inserted into the nozzle hole 43 which is an internal space of the nozzle head member 40. As it is difficult to take immediate action even if it does not operate normally because it cannot immediately grasp the operating state when it rotates, it is difficult to smoothly clean the surface of the water purification plant filter paper, and the raw material price is high when the nozzle 10 is manufactured. There is also a problem that the overall manufacturing cost, such as lower workability.

From this, the present invention is to solve the above problems, in the cleaning process to remove sludge and other foreign substances on the surface of the filter paper generated in the water purification plant, the center of mass of the impeller is not eccentric from the center of rotation The weight balance of the water is increased, and the area of water flow arrangement of the washing water supplied from the surface washing water supply pipe or the surface washing tube and the area reaching the washing water are maximized, which maximizes the amount of discharge and efficiently cleans the upper surface of the filter medium, and the body is made of transparent material. The purpose of the present invention is to provide a nozzle for cleaning the surface of the filter paper of the water purification plant, which can be manufactured to immediately identify the internal operation state for supplying the washing water, and to promptly take measures accordingly, improve workability and lower raw material cost.

In order to achieve the above object, the present invention, the body is provided with a space for forming a flow path therein; An inlet opening one side of the body and connecting the surface washing water supply pipe or the surface washing tube to the opened one side to allow the washing water to flow into the body; And a spout forming a plurality of spout holes on the other side of the body and accommodating a rotatable impeller therein and allowing the washing water introduced from the inlet to spout to the outside through the spout while rotating the impeller. In the nozzle for cleaning the filter paper surface of a water purification plant, the impeller has a cylindrical shape in its entirety, and has an inclined surface formed by descending a predetermined height from the center to the edge so that the center protrudes from the edge, and the same from the inclined surface to the bottom of the upper portion. Three spiral wings are formed at intervals, and the spiral wings maintain a torsion angle of 145 to 155 ° with respect to the rotation axis when moving downward from the upper part to the lower part, and the washing water flows into the protruding center of the upper part to form an inclined surface. Along the steel through the spiral grooves formed between the wings It provides a water purification plant for the filter paper surface cleaning nozzle, comprising a step of continuously generating a vortex.

Preferably, the body may be formed of a transparent material.

According to the nozzle for cleaning the filter paper surface of the water purification plant of the present invention having the above configuration, in the washing process for removing sludge and other foreign substances on the upper surface of the filter paper filter media generated during water purification in the water purification plant, it is cylindrical in shape and is formed from the center to the upper edge. With an inclined surface formed by going down a predetermined height, three spiral wings having a predetermined width from the inclined surface to the lower portion are formed at equal intervals, and the impeller has a torsion angle of 145 to 155 ° from the top to the bottom. By rotatably installed inside the nozzle, even if the fine eccentric occurs in the impeller, the water flow of the washing water supplied from the surface cleaning water supply pipe or surface cleaning pipe by three wings formed at the same interval and connected to the inclined surface of the upper part To ensure smooth rotation at all times, By passing the washing water to the groove between the wing having a twist angle of 145 ~ 155 ° to widely secure the area a wash water contact to form a strong vortex to the discharge amount to the maximum it is possible, the effect of effectively cleaning the filter media upper surface.

In addition, according to the nozzle for cleaning the surface of the filter paper of the present invention, the body of the nozzle is made of a transparent material to immediately grasp the internal operating state of the impeller for supplying the washing water, and quickly and appropriately in case the operation is not smooth. In addition to the smooth and efficient operation of the water treatment plant, transparent materials are made of synthetic resins such as acrylic and polycarbonate, simplifying the entire process through manufacturing processes such as injection, increasing workability and reducing raw material costs. There is also an effect.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are intended to be described in detail so that those skilled in the art can easily implement the present invention. It is not intended that the technical spirit and scope of this invention be limited.

5A and 5B illustrate a perspective view and a cross-sectional view of a surface cleaning nozzle according to an embodiment of the present invention, and FIGS. 6A to 6D illustrate an impeller installed in the surface cleaning nozzle of FIG. 5A.

Nozzle 100 for cleaning the filter paper surface of the water purification plant according to an embodiment of the present invention, as shown in Figures 5a and 5b, the body 110 is provided with a space for forming a flow path therein integrally without separation One side forming the flow path in the body 110 is opened to form the inlet 111, and the other side is closed to form the outlet 112 having a plurality of ejection holes 113.

The inlet 111 is connected to the surface washing water supply pipe (2) or the surface washing pipe (3) connected to the open side of the body 110 by screwing the washing water to the inside of the body (110) It flows into the formed flow path.

The jet hole 112, the washing water flowing into the flow path formed in the interior of the body 110 through the plurality of jet holes 113 formed on the other side of the body 110 is discharged to the outside of the surface of the water purification plant Shred and clean sludge and other debris.

The outer circumferential portion of the jet port 112 is formed to have a tapered inclined surface, and a plurality of, for example, six ejection holes 113 are formed at regular intervals on the inclined surface to maintain 120 ± 5 ° angle to the side for ejection. Make the diffusion more smooth.

In addition, the lower portion of the jet port 112, by the jet hole 113 having a larger diameter than the jet hole 113 formed on the inclined surface to perform a strong washing down.

The space for forming a flow path in the integrated body of the body 110 is formed to narrow from the inlet 111 of the open upper side to the lower outlet 112 closed, from the closed outlet 112 Impeller (120), the impeller fixing washer 130, the spring 140, the flow path opening and closing member 150 and the flow path opening and closing member 160 are positioned in sequence, the impeller fixing washer 130 and The flow path opening and closing fixing member 160 is fixed and accommodated while forming the space of the impeller 120, the spring 140 and the flow path opening and closing moving member 150 smoothly moving.

Here, the body 110 is generally made of a stainless steel material such as STS316, but the body of the nozzle can be made of a synthetic resin of a transparent material such as acrylic, polycarbonate, in this case the internal operation of the impeller for supplying the wash water Even if it is not smooth, it can promptly take appropriate action. Since it is a synthetic resin material, it can simplify the whole process through the manufacturing process such as injection, thereby improving workability and reducing the cost of raw materials.

The impeller 120 is rotatably received around the ejection hole 113 of the jet port 112 closed in the body 110, from the surface wash water supply pipe 2 or the surface wash tube 3. When the water pressure of the supplied washing water is applied, it causes the vortex while rotating, maximizing the washing water discharge by increasing the flow rate under the same water pressure.

As shown in FIGS. 6A and 6B, the impeller 120 has a cylindrical shape in its entirety, and even though fine eccentricity occurs in the impeller 120, the surface washing water supply pipe 2 or the surface cleaning pipe ( 2) an inclined slope upper portion 121 formed of an inclined surface formed by descending a predetermined height from the center to an edge so as to secure a smooth rotation at all times by arranging the water flow of the washing water supplied from 2), and an inclined surface of the raised slope upper portion 121 And a spiral blade 122 having three predetermined widths and a spiral shape while maintaining 120 ° at equal intervals.

As shown in FIGS. 6C and 6D, the impeller 120 widens the area in which the washing water reaches and forms a strong vortex that maximizes the discharge amount, thereby efficiently cleaning the upper surface of the filter medium. The wing 122 is provided with a spiral groove 123 formed therebetween by maintaining a twist angle of 145 ~ 155 ° relative to the axis of rotation when moving from the top to the bottom.

Therefore, the impeller 120 has a projecting inclined upper portion, and then adopts three wings spirally and increases the torsion angle to 145 to 155 ° as it moves downward from the upper side to the lower side. While generating energy, it achieves maximum water discharge and smooth water flow arrangement.

The impeller fixing washer 130, while forming a through-hole 131 through which the washing water passes, the impeller 120 is rotated by positioning the impeller 120 to one side of the edge so that the impeller 120 does not escape to the outside. The other side of the edge supports one side of the spring 140.

To this end, a washer fixing groove 114 is formed on a space for accommodating the impeller 120, in a space for forming a flow path inside the body 110, and the impeller fixing washer 130 is fixed thereto. Let's do it.

The spring 140, the other side of the flow path opening and closing moving member 150 between the other side of the impeller fixing washer 130 and one side of the flow opening and closing moving member 150 is the flow path opening and closing member 160 It is installed to maintain elasticity to be tightly coupled to one side of the, while the flow path opening and closing moving member 150 is moved toward the spring 140 by the water pressure of the washing water flows if the washing water inflow from the inlet 111 The spring 140 is compressed to be separated from the flow path opening and closing fixing member 160 to form a predetermined interval.

In addition, the spring 140, if there is no inflow of washing water from the inlet 111, the spring 140 is returned to its original state and the flow path opening and closing moving member 150 is moved toward the flow path opening and closing fixing member 160 again. By maintaining the elasticity to be tightly coupled to one side of the flow path opening and closing fixing member 160.

The flow path opening and closing moving member 150 forms a through hole 151 in the center so as not to overlap the through hole 161 of the flow path opening and closing fixing member 160 when the flow opening and closing moving member 150 is closely coupled to the flow opening and closing fixing member 160. When the wash water flows from the inlet 111, the water flows toward the spring 140 by the water pressure of the wash water applied through the through hole 161 of the flow path opening / closing fixing member 160, and is separated from the flow path opening / closing fixing member 160. While opening the flow path by forming a predetermined interval, if there is no inflow of the wash water from the inlet 111, the water pressure of the washing water applied through the through hole 161 of the flow path opening and closing member 160 is lost while the flow path opening and closing member 160 It is installed in a state capable of moving between the flow opening and closing fixing member 160 and the spring 140 to move in close contact with the) to close the flow path.

The flow opening and closing moving member 150 has a spring coupling part 152 formed toward the spring 140 smaller than an edge and larger than the through hole 151 and engaged with the spring 140, and the spring 140 and Opening and closing function by the washing water pressure in a state coupled to one side to smoothly perform.

The flow path opening and closing fixing member 160 forms a plurality of through holes 161 along the edge and is fixed to the inlet 111 to stop the spring 140 and the flow path opening and closing member 150. At the same time, when the flow path opening and closing moving member 150 moves to form a predetermined interval, a primary vortex is generated.

To this end, a flow path opening and closing member fixing groove 115 is formed on a space for accommodating the flow path opening and closing moving member 150 in a space for forming a flow path inside the body 110. The member 160 is fixed.

The spring 140, the flow path opening and closing moving member 150 and the flow path opening and closing fixing member 160, the opening and closing portion provided between the inlet 111 and the impeller 120, if there is a wash water inflow from the inlet 111 The water pressure of the washing water applied through the through hole 161 of the flow path opening and closing member 160 is applied to the flow path opening and closing member 150, and the spring 140 is compressed to form the compressed water inlet 111 and the inlet 111. Opening between the impeller 120 so that the washing water is ejected to the outlet 112, if there is no washing water inlet from the inlet 111, the washing water pressure is not applied to the flow path opening and closing member 150 without the spring ( As the compression of the 140 is released, the sludge that springs up from the surface during the back washing is not formed by closing the inlet 111 and the impeller 120 so as not to make a flow path. It blocks the inflow into the surface washing water supply pipe (2) or the surface washing pipe (3) connected thereto through the interior.

When described in detail with reference to the accompanying drawings the action of the nozzle 100 for cleaning the filter paper surface of the water purification plant of the present invention having the configuration as described above are as follows.

7A and 7B illustrate a state in which the washing water passes through the impeller when the washing water is supplied to the nozzle of FIG. 5, and FIG. 8 illustrates a state in which the impeller of FIG. 6 is installed in the nozzle of the transparent material.

First, if there is a wash water inlet for surface cleaning from the inlet 111, as shown in Figure 7a and 7b, the water pressure of the washing water to open and close the opening and closing the opening to generate a primary vortex Supply to the impeller 120.

And the washing water that generated the primary vortex is supplied to the impeller 120 to form a more powerful secondary vortex is ejected to the outside through the blow hole 113 to effectively clean the surface.

Here, the washing water flowing into the upper portion of the impeller 120 is supplied to the protruding inclined upper portion 121 formed to be inclined while protruding from the edge of the impeller 120, and the spiral blades 122 are formed at equal intervals while being connected to the inclined surface. By flowing into the spiral groove 123 to arrange the flow of water, fine eccentricity is generated in the impeller 120 installed inside the nozzle 100 to smoothly rotate even if the center of mass and the center of rotation do not coincide.

In addition, the impeller 120, it is provided with a spiral in the spiral shape to the torsion angle of 145 ~ 155 ° when moving down from the top to the bottom so that the wash water as a fluid can easily and strongly form the vortex during the injection, In this case, the washing water supplied from the surface washing pipe 3 is spread evenly through the spiral groove 123 formed by the torsional angle between the wings, while widening the contact area of the spiral groove 123 and increasing the rotation speed. To ensure the formation of a strong vortex.

In addition, the bottom surface of the lower part of the impeller 120 is formed to be flat, and the vortices generated while passing through the spiral groove 123 are sprayed and discharged in a dispersed state into the ejection holes 113 in the side and the bottom thereof, thereby making the surface clean. Let it go.

That is, the impeller installed in the filter paper surface cleaning nozzle of the water purification plant of the present invention has an inclined surface formed in a cylindrical shape while descending a predetermined height from the center to the edge in the upper portion, and a predetermined width from the inclined surface of the upper portion to the lower portion. Three spiral blades are formed at equal intervals, and the torsion angle is 145 to 155 ° when moving from the top to the bottom. Even though micro eccentricity occurs in the impeller, the spiral blades are formed at the same interval as the upper inclined surface. The three blades arrange the water flow of the washing water supplied from the surface washing water supply pipe or the surface washing pipe to ensure smooth rotation at all times, and move a large area by a large torsion angle of 145 to 155 ° when moving from the top to the bottom. Power that maximizes the discharge rate by passing the washing water through the groove between the wings Form a vortex.

Next, in the state in which the surface is washed from the inlet 111 and there is no inflow of the washing water, the sludge and other foreign substances that are crushed and splashed by the reverse washing by closing the flow path while maintaining the original state flow back to the surface washing water supply pipe. It can be blocked so that the life span of the entire facility, such as the nozzle itself and the surface washing water supply pipe (2), is extended and maintenance costs are also reduced.

In addition, as shown in Figure 8, the impeller is installed in a nozzle having a body of a transparent material, supplying the washing water in the washing process for removing sludge and other foreign matter on the upper surface of the filter medium filter media generated during water purification in the water purification plant The internal operation status of the impeller for the operation and the prompt and appropriate action are taken to make the operation of the water purification plant smooth and efficient, and the body is made of transparent synthetic resin such as acrylic and polycarbonate to manufacture the manufacturing process such as injection. This simplifies the entire process, increasing workability and reducing the cost of raw materials.

This invention is not limited to the above embodiments, various modifications are possible within the scope of the invention described in the claims, and such modifications are also included within the scope of the invention.

1 illustrates a state in which a nozzle for surface cleaning is installed on a filter paper of a water purification plant,

Figure 2 shows an exploded perspective view of a conventional surface cleaning nozzle installed in the filter paper of Figure 1,

FIG. 3 is a cross-sectional view illustrating a state around a nozzle when washing the surface of a filter paper of a water purification plant while supplying washing water to the nozzle of FIG. 2.

4 is a view illustrating a state in which a wing member (impeller) is installed inside the nozzle of FIG. 2,

5a and 5b are a perspective view and a cross-sectional view of the nozzle for cleaning the surface according to an embodiment of the present invention,

6a to 6d illustrate an impeller installed in the surface cleaning nozzle of FIG. 5a,

7A and 7B illustrate a state in which the washing water passes through the impeller when the washing water is supplied to the nozzle of FIG. 5.

FIG. 8 illustrates a state in which the impeller of FIG. 6 is installed in a nozzle made of a transparent material.

<Description of the symbols for the main parts of the drawings>

2: surface cleaning water supply pipe 3: surface cleaning water pipe

10: conventional spray nozzle 20: adapter member

30 socket member 40 nozzle head member

43: nozzle hole 44: injection hole

50: wing member

100: nozzle 110 according to an embodiment of the present invention: body

111 inlet 112 outlet

113: blowout hole 114: washer fixing groove

115: flow path opening and closing member fixing groove 120: impeller

121: protruding inclined upper portion 122: spiral wing

123: spiral groove 130: washer fixing washer

131, 151, 161: through hole 140: spring

150: flow path opening and closing member 152: spring coupling portion

160: flow path opening and closing member

Claims (2)

A body having a space for forming a flow path therein; An inlet opening one side of the body and connecting the surface washing water supply pipe or the surface washing tube to the opened one side to allow the washing water to flow into the body; And a spout forming a plurality of spout holes on the other side of the body and accommodating a rotatable impeller therein and allowing the washing water introduced from the inlet to spout to the outside through the spout while rotating the impeller. In the nozzle for cleaning the filter paper surface of the water purification plant, The impeller has an inclined surface formed in a cylindrical shape, while the upper portion is formed by descending a predetermined height from the center to the edge so that the center protrudes from the edge, Form three spiral wings at the same interval from the inclined surface of the upper to the lower, The spiral wing maintains a twist angle of 145 ~ 155 ° relative to the axis of rotation as it moves from top to bottom, Nozzle for cleaning the filter paper surface of the water purification plant characterized in that the washing water flows into the protruding middle of the upper portion and continues to generate a strong vortex through the spiral groove formed between the wings along the slope. The method of claim 1, The body is a nozzle for cleaning the surface of the filter paper, characterized in that formed of a transparent material.

Images