JP5869522B2 - Spray ball for tank cleaning - Google Patents

Description

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

  Currently, sanitary tanks for the food and pharmaceutical industry need to be cleaned in place (CIP cleaning). The method is a method in which a cleaning liquid or water is sprayed from a spray ball at a constant temperature for a fixed time to clean the tank inner surface, the inner surfaces of the nozzles, and the equipment in the tank so as to obtain a clean state. Further, in the pharmaceutical industry, as a confirmation (inspection) of washing, it is necessary to apply pseudo-stain (such as food red) to the target portion, and then wash by the above method to check each target portion and leave a record. Therefore, as the above countermeasure, the size, angle, number, etc. of the nozzle holes are designed so that the spray ball corresponds to the portion to be cleaned.

  FIG. 4 shows a tank 1 equipped with a conventional spray ball. In the tank 1, for example, a stirrer 21 is provided in the central portion, spray balls 22 are arranged at one or a plurality of locations on the side of the stirrer 21, and a cleaning liquid supply pipe that supplies a cleaning liquid to each spray ball 22. 23 is attached to the upper wall portion 1 b of the tank 1. 5A shows the spray ball 22 and the cleaning liquid supply pipe 23, and FIG. 5B shows a part of the cleaning state by the spray ball 22.

  As shown in FIG. 5A, the spray ball 22 includes a substantially spherical ball main body 22a and a cleaning liquid supply pipe connection port 22b provided integrally on the upper side of the ball main body 22a. A large number of nozzle holes 24... Are formed, and the distal end portion of the cleaning liquid supply pipe 23 is fitted into the pipe connection port 22 b and fixed by the pins 25.

  In the spray ball 22 as described above, since the tank 1 itself is made of can, errors such as the nozzle position and the nozzle angle are large, and as shown in FIG. 5B, the jet 26 of the cleaning liquid from the nozzle hole 24 is obtained. It is difficult to hit the target location reliably. For example, there is a blind spot P where the jet 26 does not hit on the inner surface of the manhole 1d of the tank upper wall portion 1b. The current situation is that the angle, number, etc.). As described above, since it is very difficult to pass the cleaning inspection, it takes a lot of time and utilities (such as water) to pass the inspection, and it is very costly.

  There is also a rotary spray nozzle as a nozzle for cleaning the tank, and this rotary nozzle has the advantage that the cleaning liquid can be sprayed evenly inside the tank. In the case of a rotary nozzle, cleaning liquid may remain in the gap between the fixed part and the rotating part. There is a lot to be done.

  In view of the above circumstances, an object of the present invention is to provide a spray ball in which a jet of cleaning liquid can be reliably applied even in a portion where a conventional spray ball becomes a blind spot in a tank.

Means for solving the above problems will be described with reference numerals in the embodiments described later. The invention according to claim 1 is a tank cleaning spray ball 2 for cleaning an inner surface of a tank 1. consists of a main body 2a and the cleaning liquid supply pipe connection port 2b provided thereto in the upper side, a large number of nozzle holes 4 ... are provided over substantially the entire area of its outer surface in the ball body 2a, the number of these nozzle holes No. 4 has a nozzle extension pipe 5 protruding therefrom , and each of these many nozzle extension pipes 5 is arranged so that the tip 5a thereof faces the portion to be cleaned on the inner surface of the tank 1 , and the nozzle extension pipe 5A has In addition, it is characterized in that it is possible to bend the tip 5a so as to face the portion to be cleaned on the inner surface of the tank 1 when installed in the tank 1 .

According to a second aspect of the present invention, in the spray ball for tank cleaning according to the first aspect , a branch nozzle 10 having a plurality of small holes 9 is provided in the nozzle extension pipes 5 and 5A.

A third aspect of the present invention is the tank cleaning spray ball according to the first or second aspect , wherein the nozzle extension pipes 5 and 5A are made of stainless steel pipes.

  The effect of the invention by the above solution will be described with reference numerals in the embodiments described later. According to the spray ball 2 of the invention according to claim 1, the spray ball 2 is arranged at a required portion in the tank 1. Thus, in cleaning, the inner surface of the body portion 1a of the tank 1 is caused by a jet 6 of cleaning liquid ejected from the respective distal end portions 5a (discharge portions) of a number of nozzle extension pipes 5 ... protruding from the ball body 2a. Further, the inner surface of the upper wall portion 1b and the inner surface of the bottom wall portion 1c can be cleaned effectively, and the inner corner portion Q corresponding to the conventional blind spot portion in the inner portion of the tank 1, for example, the inner surface of the manhole 1d ((b (See)), the jet 6 can be applied, and cleaning can be performed effectively. The length of the nozzle extension pipe 5 can be adjusted by setting the length to be long in advance and cutting the nozzle extension pipe 5 to a required length depending on the arrangement state in the tank 1.

  In particular, according to this spray ball 2, the pressurized cleaning liquid is sprayed from the tip portion 5a (discharge portion) of the long nozzle extension tube 5 protruding from the nozzle hole 4 of the ball body 2a. In comparison with this, the jet length of the cleaning liquid from the nozzle tip discharge portion to the cleaning target portion is shortened by the length of the nozzle extension tube 5 and the discharge portion can be brought as close as possible to the cleaning target portion. For this reason, the jet 6 from the tip portion 5a of the nozzle extension pipe 5 maintains a straight state, strongly hits the portion to be cleaned, and can clean the portion to be cleaned accurately and effectively.

Furthermore, according to the present invention , the nozzle extension pipe 5A can be bent so that the tip 5a faces the portion to be cleaned on the inner surface of the tank 1 when installed in the tank 1, By appropriately bending according to the direction of the nozzle, it is possible to accurately inject the cleaning liquid pinpointly even at the spot to be cleaned by the spraying by the conventional spray ball 22 and can perform cleaning very effectively. .

According to claim 2 , by providing the branch nozzle 10 having a plurality of small holes 9 in the nozzle extension pipe 5, a plurality of jets having stronger jet output than the case of only the nozzle extension pipes 5 and 5A. 6 can be dispersed and sprayed in a relatively wide range.

According to the invention which concerns on Claim 3 , since the nozzle extension pipes 5 and 5A consist of a stainless steel pipe | tube, they are hard to corrode and are hygienic.

It is an enlarged vertical sectional view of the spray ball concerning the present invention. (a) is a plan view of a tank equipped with a spray ball according to the present invention, and (b) is a sectional view taken along line XX of (a). (a)-(d) is sectional drawing which shows the various form of the spray ball of this invention. It is an external appearance front view of the tank equipped with the conventional spray ball. 5A is an enlarged cross-sectional view of the spray ball and the cleaning liquid supply pipe shown in FIG. 4, and FIG. 5B is a cross-sectional explanatory view showing a part of the cleaning state by the spray ball of FIG. (a), (b) shows a nozzle tube having a circular cross section and an oval cross section, (c) shows a nozzle extension pipe branched into a plurality of small holes, and (d) shows a short piece-like branch nozzle connected to the nozzle extension pipe. (E) shows a state where a branch nozzle about half the length of the nozzle extension pipe is attached to the nozzle extension pipe, and (f) shows a length equivalent to that of the nozzle extension pipe. The state which attached the branch nozzle to the nozzle extension pipe is shown.

  A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a spray ball 2 according to the present invention. The spray ball 2 includes a substantially spherical ball main body 2a and a short cylindrical cleaning liquid supply pipe connection port 2b integrally formed on the upper side of the ball main body 2a. Are provided so that each nozzle hole 4 has a nozzle extension pipe 5 protruding therefrom, and each nozzle extension pipe 5 has its tip portion 5a facing the portion to be cleaned on the inner surface of the tank 1 (see FIG. 2). Thus, the spray ball 2 has a configuration in which a large number of nozzle extension pipes 5... Protrude from the entire outer surface of the ball body 2 a like a harsenbon.

  FIG. 1 shows a state in which the nozzle extension pipe 5 protrudes from a part of the plurality of nozzle holes 4... Provided in the ball body 2a. , Nozzle extension pipes 5 are projected from all the nozzle holes 4. Further, in order to connect the cleaning liquid supply pipe 3 to the pipe connection port 2b, the tip of the cleaning liquid supply pipe 3 is fitted to the pipe connection port 2b as in the conventional spray ball 22 shown in FIG. A fixing pin (not shown) may be inserted between the pin insertion hole 2c provided in 2b and the pin insertion hole on the cleaning liquid supply pipe 3 side, and a female screw is provided on the inner peripheral surface of the pipe connection port 2b. Then, a male screw provided on the outer peripheral surface of the lower end of the liquid supply pipe 3 may be screwed to this, or both may be fixed by welding. In this embodiment, as described above, the case where the nozzle extension pipes 5 are protruded from all the nozzle holes 4... Provided in the ball body 2 a is described. There is no need to project to the nozzle holes 4... The part of the nozzle holes 4 may be a single nozzle hole 4 or a plurality of nozzle holes 4.

  The structure of the spray ball 2 will be described in more detail. The ball main body 2a and the cleaning liquid supply pipe connection port 2b are not easily corroded and are formed of a sanitary stainless material, and are formed in the nozzle holes 4 of the ball main body 2a. The protruding nozzle extension pipe 5 is also made of the same stainless steel pipe. In the spray ball 2 shown in FIG. 1, the nozzle holes 4 are provided at required intervals in the upper curved surface area and the lower curved surface area of the ball main body 2a, and each nozzle hole 4 is orthogonal to the wall surface of the ball main body 2a. It is drilled to do.

  The nozzle extension pipe 5 is a straight pipe having a required length, and is arranged concentrically with the nozzle hole 4 of the ball body 2a as shown in FIG. The nozzle hole 4 is projected by being fixed to the outer end portion by welding, screwing, or other suitable means. In addition, when the nozzle extension pipe 5 is protruded from the nozzle hole 4, the length of the nozzle extension pipe 5 is set to be long in advance, and the nozzle extension pipe 5 is cut to a required length depending on the arrangement state in the tank 1. The length can be adjusted. In addition, when the nozzle extension pipe 5 is used as a part that is recessed in the tank 1, for example, for cleaning the inside of the manhole, the tip end portion 5 a indicates the part to be cleaned in the manhole when installed in the tank 1. Can be bent to face. One of the five nozzle extension pipes 5 partially shown in FIG. 1 has a tip bent at a required angle, and the nozzle extension pipe is indicated by 5A in particular.

  2A is a plan view of the tank 1 in which the spray balls 2 are installed at two locations inside, and FIG. 2B is a sectional view taken along line XX of FIG. In FIG. 2A, 7 is a fixing member for fixing and fixing the cleaning liquid supply pipe 3 to the upper wall portion 1b of the tank 1, and 8 is a tank of a stirring device (see FIG. 4) provided in the tank 1. The upper wall part side attachment part is shown. The upper end of the cleaning liquid supply pipe 3 is connected to the cleaning liquid pressurizing pump side through a cleaning liquid supply tube (not shown).

  One spray ball 2 shown in FIG. 2 (b) is located at a position laterally separated from the central portion in the tank 1 like the conventional spray ball 22 shown in FIG. 5 (b). Of the nozzle extension pipes 5... Projecting from the main body 2a, for example, one nozzle extension pipe 5A has a tip portion 5a having an inner corner portion Q of a manhole 1d provided in the tank upper wall portion 1b. The other plurality of nozzle extension pipes 5 remain straight pipes, but their tip portions 5a project so as to face the inner bottom surface of the manhole 1d as shown in the figure. .

  When cleaning the inside of the tank 1, the inner surface of the body 1a of the tank 1 is caused by a jet 6 of cleaning liquid ejected from the tip portions (discharge portions) of a number of nozzle extension pipes 5 ... protruding from the ball body 2a. In addition, the inner surface of the upper wall portion 1b and the inner surface of the bottom wall portion 1c (see FIG. 4) can be cleaned effectively, and the inner surface of the manhole 1d can also be cleaned accurately with no blind spots. Note that the cleaning liquid used for cleaning the tank 1 may include a detergent or may simply use water.

  Further, according to the spray ball 2, the pressurized cleaning liquid is not supplied from the nozzle holes 4 of the ball body 2a, but the distal end portions 5a (discharging portions) of the long nozzle extension pipes 5 and 5A projecting from the nozzle holes 4. ), The length of the jet of cleaning liquid from the discharge part to the part to be cleaned is approximately the length of the nozzle extension pipes 5 and 5A as compared with the conventional spray ball 22 shown in FIG. As a result, the discharge portion can be brought as close to the portion to be cleaned as possible. Therefore, the jet 6 from the tip 5a (discharge part) of the nozzle extension pipe 5 can maintain a straight state, strongly strikes the portion to be cleaned, and cleans the portion to be cleaned accurately and effectively. it can.

  (A)-(d) of FIG. 3 is a schematic sectional drawing which shows the various forms of the spray ball of this invention. That is, in the spray ball 2 shown in FIG. 1, the nozzle extension tubes 5 and 5A are provided so as to protrude in the upper curved surface area and the lower curved surface area of the outer surface of the ball body 2a. The spray ball 2 shown in FIG. 5 is a case where the nozzle extension tube 5 is provided so as to protrude over the entire outer surface of the ball body 2a. The spray ball 2 shown in FIG. The spray ball 2 shown in (c) is a case where the nozzle extension tube 5 is provided so as to protrude in the region excluding the entire bottom part of the outer surface of the ball body 2a. Yes, the spray ball 2 shown in (d) shows a case where the nozzle extension pipe 5 is provided so as to protrude in a region excluding the upper side of the outer surface of the ball main body 2a. The spray balls 2 in various usage forms shown in FIGS. 3A to 3D are merely examples of use, and the spray balls according to the present invention are not limited to these illustrated examples. .

FIGS. 6A to 6C show various examples of the cross-sectional shape of the nozzle extension tube 5 in the spray ball 2 of the present invention. FIG. 6A shows the nozzle extension tube 5 having a circular tube cross section. (B) shows a nozzle extension pipe 5 having a cross section of an oval or an ellipse, and the nozzle extension pipe 5 shown in (c) has a nozzle extension pipe to which branch nozzles 10 having a plurality of small holes 9 are attached. 5 is shown. (D) shows the case where the short piece-like branch nozzle 10a is attached to the tip 5a side of the nozzle extension pipe 5, and (e) shows the branch nozzle 10b having a length about half the length of the nozzle extension pipe 5. Shows a state in which the nozzle extension pipe 5 is attached from the center in the length direction to the tip end part 5a, and (f) shows a branch nozzle 10c having the same length as the nozzle extension pipe 5 in the nozzle extension pipe 5. The state where it was attached over the entire length is shown.

If the nozzle extension pipe 5 having a circular pipe cross section shown in FIG. 6 (a) is used, the nozzle hole 4 provided in the ball body 2a is generally circular in cross section, so that it can be easily attached to the nozzle hole 4. And ready-made tubing can be used. When the nozzle extension pipe 5 having an oval or elliptical cross section shown in (b) is used, the jet 6 (see FIG. 2 (b)) ejected from the tip 5a of the nozzle extension pipe 5 is an oval with a pipe cross section. Alternatively, since it becomes a jet with a long side of the cross-section substantially corresponding to the elliptical shape, it is effective for cleaning, for example, a portion to be cleaned widened in the horizontal direction or the vertical direction. Further, as shown in (c), when the nozzle extension pipe 5 branched into the plurality of small holes 9 is used, the plurality of jets 6 having a strong jet output can be made in a relatively wide range as compared with the case of the nozzle extension pipe 5 alone. Can be dispersed and sprayed.

Further, when the branch nozzle 10a is attached to the tip 5a side of the nozzle extension pipe 5 as shown in (d), the jet output is generated from the jet 6 ejected from the tip 5a of the nozzle extension pipe 5 without the branch nozzle 10a. A plurality of strong jets 6 can be ejected from the tip of the nozzle extension pipe 5. Further, in the case of the branch nozzle 10b shown in (e), the jet stream 6 ejected from each small hole 9 can maintain a straight state for a longer time than in the case of the branch nozzle 10a of (d), and accurately injects the portion to be cleaned. it can. Further, in the case of the branch nozzle 10c of (f), the jet flow 6 ejected from each small hole 9 can be maintained in a straight state for a longer time and can be ejected more accurately at the location to be cleaned.

DESCRIPTION OF SYMBOLS 1 Tank 2 Spray ball 2a Ball | bowl main body 2b Cleaning liquid supply pipe connection port 3 Cleaning liquid supply pipe 4 Nozzle hole 5 Nozzle extension pipe 5A Nozzle extension pipe 5a where the front-end | tip part side was bent suitably The front-end | tip part of a nozzle extension pipe

Claims (3)

A tank cleaning spray balls for cleaning the inside surface of the tank consists of a ball body and the cleaning liquid supply pipe connection port provided to the upper side, the ball body are a number of nozzle holes over substantially the entire area of its outer surface A nozzle extension pipe projects from each of these many nozzle holes, and each of these many nozzle extension pipes is arranged so that the tip thereof faces the portion to be cleaned on the tank inner surface ,
Further, the nozzle extension pipe is a tank cleaning spray ball which can be bent so that a tip portion thereof faces a portion to be cleaned on the inner surface of the tank when installed in the tank . The spray ball for tank cleaning according to claim 1 , wherein a branch nozzle having a plurality of small holes is provided in the nozzle extension pipe. 3. The tank cleaning spray ball according to claim 1, wherein the nozzle extension pipe is made of a stainless steel pipe.

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