KR20210156032A - Spray ball - Google Patents

Abstract

An objective of the present invention is to provide a spray ball capable of evenly cleaning the inside of a tank, and also, being easily mounted in any type of tank. To achieve the objective, the spray ball has first and second spray hole groups formed in a line in a direction orthogonal to a rotating direction of a ball body, on a curved surface of the rotating ball body, wherein the first spray hole group comprises a plurality of spray holes for cleaning bored radially from an equatorial side of the curved surface toward a polar side, regarding a first virtual point, which is created on the outside of the ball body on a straight line penetrating a virtual start point located on the most equatorial side of the curved surface and the center of the curvature of the ball body, as a start point, and the second spray hole group comprises a plurality of spray holes for cleaning bored radially from a polar side of the curved surface toward an equatorial side, regarding a second virtual point, which is created on the outside of the ball body on a straight line penetrating a virtual start point located on the most polar side of the curved surface and the center of the curvature of the ball body, as a start point.

Description

spray ball {SPRAY BALL}

The present invention relates to a spray ball for cleaning the tank for cleaning the inner surface of the tank.

Conventionally, tanks such as sanitary tanks have been used for various uses such as storage, combination, and sterilization of products in the food industry, the pharmaceutical industry, and the like. Since it is necessary to keep the inside of this tank in a clean state, a spray ball is used as a dedicated washing|cleaning apparatus.

Specifically, the spray ball is fitted in the tank 102 from a nozzle 102b formed in the top cover portion 102a of the tank 102 as shown in FIG. 8 . As the spray ball 104, for example, as shown in FIG. 9, the rotary spray ball provided with the upper rotating body 106 and the lower rotating body 108 rotating in mutually opposite directions is used. Moreover, in each of the upper rotating body 106 and the lower rotating body 108, the injection hole 110 for rotation and the injection hole 112 for washing|cleaning are respectively formed in two each. The rotational injection hole 110 is an injection hole that sprays the cleaning liquid in a tangential direction to rotate the upper rotating body 106 or the lower rotating body 108, and the cleaning injection hole 112 is a portion that injects the cleaning liquid it's a craftsman

According to this spray ball 104, it is possible to wash|clean the inside of the tank 102 without occupying a place.

Japanese Patent Laid-Open No. 2014-233682

However, in the above-mentioned spray ball 104, in the tank 102, the point where the water column sprayed from the cleaning injection hole 112 hits is washed, but there is a problem that the point where the water column does not touch is not directly washed. . For this reason, the washing|cleaning of the point where the water column did not reach had to be entrusted to the washing|cleaning by the flow along with the washing|cleaning liquid dripping from the place where the water column touched.

Moreover, since there are only four injection holes 112 for washing|cleaning in total, there also existed a problem that there were few spots which can be washed with a water column, and washing|cleaning nonuniformity is conspicuous. In particular, there was a problem that the inside of the nozzle 102c was difficult to clean.

In order to solve this problem, a spray ball for tank cleaning in which an extension tube is formed in the nozzle hole of the spray ball is known (see, for example, Patent Document 1), but when an extension tube is formed, the length of the extension tube needs to be changed for each tank Because there is, there was a problem that it takes a lot of work when installing it on the tank.

It is an object of the present invention to provide a spray ball that can clean the inside of a tank evenly and can be easily attached to any tank.

The spray ball of the present invention is

On the curved surface of the rotating ball body, in a direction orthogonal to the rotational direction of the ball body, a spray ball in which the first injection group and the second injection group are formed in a row image,

The first injection hole group includes a virtual starting point injection hole located on the most equator side of the curved surface and a first virtual point virtual outside the ball body on a straight line passing through the center of curvature of the ball body as a starting point, the curved surface Consists of a plurality of cleaning spray holes radially perforated from the equator side to the pole side of the

The second injection hole group includes a virtual starting point injection hole located on the most extreme side of the curved surface and a second virtual point virtual outside the ball body on a straight line passing through the center of curvature of the ball body as a starting point, It is characterized in that it is composed of a plurality of cleaning injection holes radially drilled from the pole side toward the equator.

In this way, by forming the first and second injection air groups having different injection angles adjacent to each other on the upper and lower rotational bodies, the inside of the tank can be cleaned evenly. In addition, it is not necessary to adjust the spray angle for each tank to be cleaned, and the spray ball can be easily attached to any tank.

In addition, the spray ball of the present invention,

The ball body includes the upper rotator and a lower rotator rotating in the opposite direction to the upper rotator, and the first injection air group and the second injection air group are provided to the upper rotation body and the lower rotation body, respectively. It is characterized in that it is formed.

In this way, by rotating the upper rotating body and the lower rotating body in the opposite directions, it is possible to improve the cleaning efficiency.

In addition, the spray ball of the present invention,

The rotational speed of the upper rotating body and the lower rotating body is characterized in that 5 rpm or more and 15 rpm or less.

By rotating the rotating body at such a rotation speed, the inside of a tank can be carefully cleaned.

In addition, the spray ball of the present invention,

The first injection group and the second injection group include 4 to 8 cleaning injection holes, respectively.

In this way, if a large number of cleaning injection holes are included in each injection hole group, a wide cleaning range can be covered from the equator side to the pole side.

In addition, the spray ball of the present invention,

The angle between the first water column injected from the cleaning injection hole on the most extreme side of the first injection air group and the first water column injected from the cleaning injection hole on the most equator side of the first injection air group is 5° or more 50 ° or less, the second water column injected from the cleaning injection hole on the most pole side of the second injection air group and the second water column injected from the cleaning injection hole on the most equator side of the second injection air group are formed The angle is characterized in that it is in the range of 5° or more and 50° or less.

If the water column is ejected in such an angle range, the inside of the tank can be washed almost completely.

ADVANTAGE OF THE INVENTION According to this invention, the spray ball which can wash|clean the inside of a tank uniformly and can be easily attached to any tank can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS It is the perspective view which looked at the spray ball which concerns on embodiment from upper direction.
It is the figure which looked at the spray ball which concerns on embodiment from the front.
Fig. 3 is a cross-sectional view showing a first injection air group formed in an upper rotary body according to an embodiment.
Fig. 4 is a cross-sectional view showing a second injection air group formed in the upper rotating body according to the embodiment.
Fig. 5 is a view showing a range in which water columns injected from one first injection air group and a second injection air group formed in the upper rotating body according to the embodiment reach the inner surface of the tank.
It is a figure which shows the situation which wash|cleans the inside of a tank using the spray ball which concerns on embodiment.
7 : is a figure which showed the cleaning rate in the tank and in a nozzle by the spray ball which concerns on embodiment, and the washing|cleaning rate in the tank and in a nozzle by the conventional spray ball in a bar graph.
8 : is a figure which shows the situation which wash|cleans the inside of a tank using the conventional spray ball.
9 : is a figure which shows the conventional spray ball.

EMBODIMENT OF THE INVENTION Hereinafter, with reference to drawings, the spray ball which concerns on embodiment of this invention is demonstrated. 1 : is the perspective view which looked at the spray ball which concerns on embodiment from upper direction, and FIG. 2 : is the figure which looked at this from the front. 1 and 2 , the spray ball 2 is made of, for example, a resin such as polytetrafluoroethylene (PTFE), the nozzle portion 4, the fixing ring 6, and the ball A main body 8 is provided. In addition, in this specification, "upper" or "lower" is prescribed|regulated as the state of FIGS.

The nozzle part 4 has a cylindrical shape in which the flow path 4a of the washing|cleaning liquid is formed inside, and the large-diameter part 4b which enlarged the diameter is formed in the lower end. Moreover, the screw groove|channel (not shown) is formed in the outer periphery of the part to which the fixing ring 6 of the nozzle part 4 is attached. In addition, a port (not shown) through which a cleaning liquid sprayed from an injection air group 12 or the like described later passes is formed in a portion hidden in the ball body 8 of the nozzle unit 4 .

The fixing ring 6 is provided with a screw groove (not shown) on the inner circumferential surface, and is attached to a predetermined position by screwing.

The ball body 8 is a spherical rotating body in which a through hole (not shown) for penetrating the nozzle part 4 is formed with the rotation center line L as an axis, and an upper rotating body 8a rotating in opposite directions. and a lower rotating body 8b. This ball body 8 first penetrates the lower rotating body 8b through the nozzle unit 4 so that it is mounted on the large-diameter portion 4b, and then, the upper rotating body 8a is inserted into the nozzle unit ( 4) is penetrated to abut against the large-diameter portion 4b, and finally, the fixing ring 6 is attached to the nozzle portion 4 to be rotatably fixed at a predetermined position.

Here, on the curved surfaces of the upper rotating body 8a and the lower rotating body 8b, a rotational injection hole 8c for spraying the cleaning liquid in a tangential direction to rotate the upper rotating body 8a or the lower rotating body 8b. , and two large injection holes for cleaning 8d for spraying the cleaning liquid are drilled respectively. Moreover, the injection hole 8c for rotation is processed so that the upper rotating body 8a and the lower rotating body 8b may rotate in reverse directions. Moreover, the rotational speed of the upper rotating body 8a and the lower rotating body 8b is 5 rpm or more and 15 rpm or less, and rotates more slowly than the conventional spray ball 104. For this reason, the inside of the tank 34 (refer FIG. 5) can be cleaned more carefully than the conventional spray ball 104.

In addition, in the upper rotary body 8a and the lower rotary body 8b, there are two spray gun groups 12 each including a plurality of cleaning spray holes 8e for spraying the cleaning liquid, and the ball body 8 rotates. It is formed in line symmetry with the center line L as an axis. In addition, this injection group 12 is on the curved surface of the upper rotating body 8a and the lower rotating body 8b, in a direction orthogonal to the rotational directions of the upper rotating body 8a and the lower rotating body 8b; That is, the first injection air group 12a and the second injection air group 12b are formed in the direction of the rotational center line L and are adjacent to each other in two rows and are formed in a row image. In addition, specifically, 4 to 8 washing|cleaning injection holes 8e are perforated in the 1st injection hole group 12a and the 2nd injection air group 12b, respectively.

In this spray ball 2, the cleaning liquid supplied from the flow path 4a of the nozzle part 4 is filled in the upper rotary body 8a and the lower rotary body 8b through the port, and the rotational injection hole 8c ) by being sprayed in a tangential direction, the rotation of the upper rotating body 8a and the lower rotating body 8b in opposite directions to each other is controlled. While the upper rotating body 8a and the lower rotating body 8b rotate in opposite directions to each other, the washing liquid is sprayed from the large washing jet hole 8d and the washing jet hole 8e toward the part to be cleaned.

Next, the injection air group 12 will be described in detail. 3 is a cross-sectional view showing the first injection air group 12a formed in the upper rotary body 8a. When forming the first injection hole group 12a, first, as shown in FIG. 3, among the cleaning injection holes 8e included in the first injection hole group 12a, the cleaning that is located on the equator side of the curved surface The position of the injection hole 8e is determined as the virtual origin injection hole 14 . Next, a straight line 18 passing through the virtual starting point injection hole 14 and the center of curvature 16 of the upper rotating body 8a is determined, and on this straight line 18, the ball outside the ball body 8 is 1 Virtual point 20 is hypothesized. Next, using the first virtual point 20 as a starting point, a plurality of cleaning injection holes 8e are radially drilled at predetermined intervals from the equator side to the pole side of the curved surface. In this way, the row of the cleaning injection holes 8e drilled from the equator side to the pole side of the curved surface is the first injection hole group 12a.

4 is a cross-sectional view showing the second injection air group 12b formed in the upper rotary body 8a. When forming the second injection hole group 12b, first, as shown in FIG. 4, the cleaning powder positioned on the most extreme side of the curved surface among the cleaning injection holes 8e included in the second injection hole group 12b. The position of the dead hole 8e is determined as the virtual starting point injection hole 22 . Next, a straight line 24 passing through the virtual starting point injection hole 22 and the center of curvature 16 of the upper rotating body 8a is determined, and on this straight line 24, the ball body 8 is located outside the ball body 8 2 Virtual point 26 is hypothesized. Next, using the second virtual point 26 as a starting point, a plurality of cleaning injection holes 8e are radially drilled at a predetermined interval from the pole side to the equator side of the curved surface. In this way, the row of the cleaning injection holes 8e drilled from the equator side to the pole side of the curved surface is the second injection hole group 12b.

In addition, although the case where the 1st injection air group 12a and the 2nd injection air group 12b are formed in the upper rotating body 8a was demonstrated here, also in the lower rotating body 8b, it is the same as that of the upper rotating body 8a. Thus, a first injection group (12a) and a second injection group (12b) are formed.

5 shows the first water column 32a injected from the first injection air group 12a formed in the upper rotating body 8a and the second water column 32b injected from the second injection air group 12b, the tank 34 It is a diagram showing the situation that touches the inner surface of In addition, in Fig. 5, in order to simplify the expression, only the case where the water column is sprayed from one set of the first injection air group 12a and the second injection air group 12b formed in the upper rotary body 8a is shown, and another set The water column 32 injected from the first injection air group 12a and the second injection air group 12b and the water column injected from the lower rotating body 8b are omitted. According to FIG. 5 , it can be seen that the inner surface of the tank can be cleaned in a wide range by drilling the first injection air group 12a and the second injection air group 12b having different injection angles in the upper rotary body 8a. Further, the first injection air group 12a and the second injection air group 12b radially drill the cleaning injection holes 8e with the first virtual point 20 and the second virtual point 26 as a starting point, respectively. Therefore, the water column 32 is sprayed while maintaining an angle that does not interfere with each other, and the inside of the tank 34 is cleaned evenly.

In addition, from the first water column 32a injected from the most extreme cleaning injection hole 8e of the first injection air group 12a and the cleaning injection hole 8e on the equator side of the first injection air group 12a. The angle α formed by the jetted first water column 32a is in the range of 5° or more and 50° or less. In addition, from the second water column 32b injected from the most extreme cleaning injection hole 8e of the second injection air group 12b and the cleaning injection hole 8e on the equator side of the second injection air group 12b. The angle β formed by the second water column 32b to be sprayed is also in the range of 5° or more and 50° or less. Further, from the first water column 32a, which is injected from the most equatorial jetting hole 8e on the equator side of the first jetting air group 12a, and the cleaning jetting hole 8e at the most extreme side of the second jetting air group 12b The angle γ formed by the second water column 32b to be sprayed is in the range of 10° or more and 60° or less. The angle δ between the equator and the large jet hole 8d for cleaning is in the range of 50° or more and 70° or less.

Therefore, if the upper rotary body 8a and the lower rotary body 8b provided with the two sets of the first jet air group 12a and the second jet air group 12b are used, as shown in Fig. 6, the tank 34 ) can be cleaned almost without exception. Also, in Figs. 5 and 6, the tank 34 is viewed from different directions.

Example

Next, the experiment of the cleaning rate implemented using the spray ball 2 which concerns on embodiment, and the conventional spray ball 104 is demonstrated. First, in the experiment, a tank equipped with the spray ball 2 according to the embodiment and a tank equipped with the conventional spray ball 2 were prepared. Here, the tanks used for both are the same. Further, both the spray ball 2 and the conventional spray ball 104 are made of polytetrafluoroethylene (PTFE), and the tank is made of stainless steel.

Next, a total of 17 test plates made of stainless steel to which vermilion, which is a pseudo-contamination, etc. were applied were prepared. Chapter 12 out of 17 is the test plate placed on the inner wall of the tank, and Chapter 5 is the test plate placed in the nozzle of the tank. Each of the 12 test plates arranged on the inner wall surface of this tank and the 5 test plates arranged in the nozzle were weighed. Next, 12 test plates and 5 test plates are respectively placed in the inner wall surfaces of both tanks, and each tank is cleaned for a predetermined time using the spray ball 2 and the conventional spray ball 104. , The test plate was removed and the weight was measured.

The formula for calculating the cleaning rate based on the weight of the test plate before and after cleaning is as follows.

(The weight of the test plate before washing - the weight of the test plate after washing) / The weight of the test plate before washing... (Formula 1)

Fig. 7(a) is a bar graph showing the cleaning rate in the tank by the spray ball 2 according to the embodiment calculated using the formula 1 and the cleaning rate in the tank by the conventional spray ball 104, , Fig. 7(b) is a bar graph showing the cleaning rate in the nozzle by the spray ball 2 according to the embodiment calculated using the formula 1 and the cleaning rate in the nozzle by the conventional spray ball 104 in a bar graph. will be.

According to Fig.7 (a), while the cleaning rate in the tank by the conventional spray ball 104 is 27.4 %, the cleaning rate in the tank by the spray ball 2 which concerns on embodiment is 45.3 %. Moreover, according to FIG.7(b), while the cleaning rate in the nozzle by the conventional spray ball 104 is 5.3 %, the cleaning rate in the nozzle by the spray ball 2 which concerns on embodiment is 21.8 %.

According to the spray ball 2 which concerns on this embodiment, the 1st injection air group 12a and the 2nd injection air group 12b from which the injection angles differ are adjacent to the upper rotation body 8a and the lower rotation body 8b, and are adjacent to each other. By forming, the inside of the tank 34 can be washed evenly. Moreover, it is not necessary to adjust the injection angle for every tank 34 used as a washing|cleaning object, and it can attach to any tank 34 easily.

In addition, since the spray ball 2 has a dual structure including an upper rotating body 8a and a lower rotating body 8b, the contamination of the point washed out by the cleaning liquid sprayed from the upper rotating body 8a is, Since it is washed away again by the cleaning liquid sprayed from the lower rotating body 8b, the dirt in the tank 34 can be thoroughly cleaned.

In addition, in the above-mentioned embodiment, when the injection hole 8c for rotation and the large injection hole 8d for washing are formed on the curved surface of the upper rotation body 8a and the lower rotation body 8b two each, respectively. Although illustrated, the rotational injection hole 8c and the large injection hole 8d for washing|cleaning may be provided 3 or more.

Moreover, in the above-mentioned embodiment, the more injection hole group 12 may be formed in the upper rotating body 8a and the lower rotating body 8b. For example, the third injection group may be formed adjacent to the first injection group 12a or the second injection group 12b. In addition, the inclination angle of the cleaning injection hole 8e included in the third injection air group is different from that of the cleaning injection hole 8e included in the first injection air group 12a or the second injection air group 12b. to be.

2 spray balls
4 nozzle part
4a Euro
4b Daekyungbu
6 retaining ring
8 ball body
8a upper rotating body
8b lower rotating body
8c rotary blower
8d large jet for cleaning
8e cleaning jet
12 jet air force
12a 1st Jet Air Force
12b 2nd Jet Air Force
14 Virtual fiducial jets
16 center of curvature
18 straight line
20 first virtual point
22 virtual fiducial jet
24 straight lines
26 Second virtual point
32 water column
32a 1st column of water
32b 2nd column of water
34 tank
102 tank
102a top cover
102b nozzle
102c nozzle
104 spray ball
106 upper rotating body
108 lower rotating body
110 rotary blower
112 cleaning spray hole
L center line of rotation

Claims (5)

On the curved surface of the rotating ball body, in a direction orthogonal to the rotational direction of the ball body, a spray ball in which the first injection group and the second injection group are formed in a row image,
The first injection hole group includes a virtual starting point injection hole located on the most equator side of the curved surface and a first virtual point virtual outside the ball body on a straight line passing through the center of curvature of the ball body as a starting point, the curved surface Consists of a plurality of cleaning spray holes radially drilled from the equator to the pole side of
The second injection hole group includes a virtual starting point injection hole located at the most extreme side of the curved surface and a second virtual point virtual outside the ball body on a straight line passing through the center of curvature of the ball body as a starting point, A spray ball comprising a plurality of cleaning spray holes drilled radially from the pole side toward the equator. The method of claim 1,
The ball body includes the upper rotator and a lower rotator rotating in the opposite direction to the upper rotator, and the first injection air group and the second injection air group are provided to the upper rotation body and the lower rotation body, respectively. Spray ball, characterized in that formed. 3. The method of claim 2,
The spray ball, characterized in that the rotation speed of the upper rotor and the lower rotation body is 5 rpm or more and 15 rpm or less. 4. The method according to any one of claims 1 to 3,
The first injection group and the second injection group include 4 to 8 cleaning injection holes, respectively. 4. The method according to any one of claims 1 to 3,
The angle between the first water column injected from the cleaning injection hole on the most pole side of the first injection air group and the first water column injected from the cleaning injection hole on the most equator side of the first injection air group is 5° or more In the range of 50° or less, the second water column injected from the cleaning injection hole on the most pole side of the second injection air group and the second water column injected from the cleaning injection hole on the most equator side of the second injection air group A spray ball, characterized in that the angle formed is in the range of 5° or more and 50° or less.

Images