JPH0889919A - Washing nozzle device for closed tank - Google Patents

Abstract

PURPOSE: To aim at an object place from the outside and to jet a liquid to wash it of a closed tank as it is closed without a cover of the closed tank being opened. CONSTITUTION: A washing liquid feeding pipe 8 and a washing nozzle body 9 are installed on one side of a ball body 7 and on the other side respectively, and also the washing liquid feeding pipe and the washing nozzle body are made to communicate with each other inside the ball body. By projecting a washing nozzle body to the inside of a tank 1 and projecting a washing liquid feeding pipe to the outside of the tank 1, the ball body is rotatably supported by a ball receiving member 6 fitted to the tank 1 side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning tank device for a closed tank, which cleans the inside of a tank by aiming from outside and injecting a cleaning liquid in a closed state without opening the lid of the tank.

[0002]

2. Description of the Related Art Conventionally, when cleaning a closed tank such as a crystallization can for crystallizing a chemical substance, the lid of the tank has been opened.

[0003]

However, when cleaning a sealed tank, it is inconvenient and time-consuming to remove the lid of the tank and open the mouth each time. Further, when cleaning a closed tank such as a crystallization can that is incorporated as a tank in the manufacturing process, there is a risk that dust and bacteria may enter by opening.

Therefore, the present invention is intended to provide a cleaning tank device for a closed tank, which is capable of injecting a liquid from an outside to a target place in a sealed state without opening the lid of the tank. To do.

[0005]

The present invention has been proposed in order to achieve the above-mentioned object, and a cleaning liquid supply pipe is provided on one side and a cleaning nozzle body is provided on the opposite side of a ball body whose outer peripheral surface is a spherical surface. In addition to providing each, the cleaning liquid supply pipe and the cleaning nozzle main body are communicated inside the ball body, the cleaning nozzle main body is projected inside the tank, and the cleaning liquid supply pipe is projected outside the tank. It is rotatably supported by a ball receiving member attached to the above (claim 1).

In a preferred mode, the tip of the cleaning nozzle body may be bent from the middle to the outside by a predetermined angle, and the cleaning liquid supply pipe may be provided with a handle for operation.

[0007]

According to the present invention, since the ball body is rotatably supported by the ball receiving member, when the ball body is rotated, the cleaning liquid supply pipe and the cleaning nozzle body are integrally rotated. Therefore, by operating the portion such as the cleaning liquid supply pipe protruding outside the tank, the nozzle tip of the cleaning nozzle body inside the tank can be aimed at the target location for cleaning, and the cleaning can be performed without opening and closing the tank. be able to. Therefore, the cleaning nozzle device can be attached to the closed tank and used as it is every time cleaning is required. As a range in which the ball can be swung and tilted, for example, 360 degrees can be swung in the horizontal plane, and tilts can be made in the longitudinal direction in the front-back, left-right, or diagonal directions, for example, about 40 degrees.

In a preferred mode, since the tip of the cleaning nozzle body is bent from the middle to the outside by a predetermined angle, the nozzle tip can be directed over a wider angle range.

Further, by providing a handle for operation on the cleaning liquid supply pipe, the operation of the cleaning nozzle main body of the closed tank can be facilitated, and the tip end position of the nozzle can be accurately aimed in a desired direction.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a closed tank to be cleaned,
For example, it is a crystallization can, and has a stock solution inlet 2 at the top and a discharge port 3 at the bottom. Since this crystallization can 1 is a tank in the manufacturing process, it is a closed tank that is shielded from the outside air so that dust and bacteria that are the source of pyrogen do not enter.

A plurality of cleaning nozzle devices 4 according to the present invention are attached to the closed tank, that is, the upper portion of the crystallization can 1. In this embodiment, the number of cleaning nozzle devices 4 is two, but one or three or more may be provided. Also,
The crystallization can 1 is provided with a viewing window 5 through which the cleaning liquid can be sprayed while looking inside the tank. The position and number of the peep windows 5 can be appropriately selected, but they are arranged in the vicinity of the washing nozzle device so that a person performing a washing operation can operate the washing nozzle device 4 while confirming the injection direction from the peep window 5. It is desirable to do.

The cleaning nozzle device 4 is, as shown in FIG.
A ball body 7 as a rotary seal part supported by the ball receiving member 6 in a liquid-tight manner and in a rotatable state, and the ball body 7
The cleaning liquid supply pipe 8 and the cleaning nozzle main body 9 which are provided so as to extend from the diametrically opposite positions to each other, and the ball body 7 for communicating the cleaning liquid supply pipe 8 and the cleaning nozzle main body 9 with each other.
And a communication passage 10 formed through the inside.

The ball receiving member 6 has a ball receiving opening 12 having a receiving surface on which an O-ring 11 is mounted.
The plate-shaped members 13, 13 are stacked on top of each other, and the screws 14
It is a member that is integrally fixed with the packing 1 with the packing 16 sandwiched between the mounting seat 15 of the mounting opening provided at the top of the crystallization can 1.
It is attached with 7. The receiving surface of the ball housing opening 12 is preferably a concave spherical surface corresponding to the spherical surface of the outer peripheral surface of the ball body 7, but the outer peripheral surface of the ball body 7 can be contacted to rotate the ball body 7. Any shape can be used as long as it can be supported in any state. Also, an O-ring 1 to be mounted on the receiving surface
The number 1 is not limited to the one that is attached to the seam, but may be provided at two positions above and below with a space.

In order to mount the movable body consisting of the ball body 7, the cleaning liquid supply pipe 8 and the cleaning nozzle body 9 on the ball receiving member 6, the receiving surface of the ball storage opening 12 of the lower plate member 13 ( The lower half portion of the ball body 7 is housed in the same curved surface as the ball, and the upper plate-shaped member 13 is covered, so that the ball body 7 is housed in the upper and lower ball housing openings 12 that are substantially spherical voids. When the ball body 7 is mounted on the ball receiving member 6 in this manner, the cleaning liquid supply pipe 8 projects above the ball receiving member 6 on the outside of the tank, and below the ball receiving member 6 on the inside of the tank. 9 protrudes, and in this state, the ball body 7 is rotatably supported in the circumferential direction, the front-rear direction, the left-right direction, and the oblique direction.

In this embodiment, the material of the ball 7 as the rotary seal portion is Teflon PTFE which is a product name of Dyupon Co.
Although it is made of stainless steel, it can be configured as a ball made of stainless steel. The shape of the ball body 7 is a shape that can freely rotate while maintaining a watertightly sealed state by the O-ring 11, for example, a rotating body having a spherical or elliptical cross section. That is, the ball body 7 is a member having an outer peripheral surface formed of a spherical surface (including an indefinite curved surface such as an ellipse), and the cleaning liquid supply pipe 8 and the cleaning nozzle main body 9 may be attached at positions facing each other. It does not necessarily have to be a sphere. For example, the cleaning liquid supply pipe 8 and the cleaning nozzle main body 9 may be formed in flat portions at opposite portions, and the outer peripheral surface portion rotatably supported by the ball receiving member 6 may be formed into a spherical shape. The horizontal cross-sectional shape may be circular.

The communication passage 10 penetrating the inside of the ball body 7 is formed in a straight line, and the communication passage 10 is opened as a liquid inlet and a liquid outlet at positions facing each other in the diametrical direction. The cleaning liquid supply pipe 8 and the cleaning nozzle body 9 are screwed into and connected to the inlet and the outlet in this embodiment.

For the purpose of widening the washable range, the lower part of the cleaning nozzle body 9 is bent obliquely outward from the middle at an angle α, here about 30 °. A handle 18 having a cross shape is provided on the upper portion of the cleaning liquid supply pipe 8 as an operating portion for facilitating the cleaning operation.

The range in which the ball body 7 can be rotated is specifically limited by the length and shape of the cleaning liquid supply pipe 8 and the cleaning nozzle body 9 which are vertically projected from the ball body 7. However, here, the handle 18, which is the operation unit, is provided so that it can be swung to any position by 360 ° in the horizontal plane and can be tilted by θ = about 40 ° in the vertical plane. In order to make the tilt angle θ as large as possible, in this embodiment, the inclined portion 19 is formed on the peripheral edge of the ball receiving opening 12 of the ball receiving member 6.

The cleaning liquid supply pipe 8 and the cleaning liquid source supply pipe 2
Connect to 0 using flexible tube 21,
The liquid can be supplied regardless of the direction in which the cleaning liquid supply pipe 3 is tilted.

The cleaning nozzle device 4 having the above-mentioned structure
The plate-shaped member 13 of the ball receiving member 6, which also functions as a flange, is bolted with the packing 16 sandwiched between the mounting seats 15 of the crystallization can 1. As a result, the crystallization can 1 is in a closed state. That is, the ball body 7 and the plate-shaped member 13 of the ball receiving member 6 serve as a sealing lid of the mounting opening of the crystallization can 1. Further, when the cleaning nozzle device 4 is attached to the crystallization can 1 in this way, the purified liquid supply pipe 21 is connected to the crystallization can 1
The cleaning nozzle body 9 is located outside the (tank) and inside the tank.

While observing the inside of the crystallization can 1 through the observation window 5, the liquid is jetted from the cleaning nozzle body 9 to a desired location,
The handle 18 outside the tank is grasped to operate the turning angle position and the tilt angle θ to adjust the liquid ejection direction of the cleaning nozzle body 9 in the tank, and eject the cleaning liquid to the aimed position.

The ball 7 can be rotated 360 degrees in the horizontal plane, and can be tilted back and forth, left and right or diagonally in the vertical plane, for example, about 40 degrees. Further, since the tip of the cleaning nozzle body 9 is bent about 30 °, the handle 18 can be operated to direct the nozzle tip in a hemispherical direction of 180 ° downward from the horizontal direction. In addition, since the spray is performed from one nozzle, a strong impact force is applied to the target surface to be cleaned, and efficient cleaning can be performed. The cleaning liquid and the adhered substances washed off are discharged from the discharge port 3 at the lower end.

Further, the cleaning nozzle body 9 is swung 360 ° in the lateral plane by the handle 18, but at this time, the inclined portion 19 is provided at the portion of the ball housing opening 12 in which the ball body 7 of the plate member 13 is sandwiched. Is attached, the cleaning liquid supply pipe 8 can be tilted back and forth and left and right as desired.
Therefore, the liquid ejection direction of the cleaning nozzle body 9 can be freely changed.

According to the experiment, ethanol was used as the cleaning liquid, and the crystals (about 100 m) attached in the crystallization can 1 were used.
The thickness of about m) could be washed off as intended by an external operation without opening the lid of the crystallization can which is a closed tank. Further, in the embodiment shown in the drawings, the cleaning nozzle device is attached to the upper surface of the tank, but it may be attached to the side surface of the tank.

[0025]

As described above, according to the present invention, since the ball body provided with the cleaning liquid supply pipe and the cleaning nozzle body at the opposite positions is rotatably supported by the ball receiving member, Once installed, you can operate the cleaning liquid supply pipe outside the tank to point the nozzle tip of the cleaning nozzle body inside the tank to the target location for cleaning, and perform cleaning without opening the tank. it can. Therefore, the cleaning nozzle device can be attached to the closed tank and used as it is every time cleaning is required. Moreover, since the target location can be cleaned by jetting from the nozzle, the cleaning liquid concentrates on the surface to be cleaned, whereby adhered substances can be strongly peeled off, and high cleaning power can be obtained (claim 1).

According to the second aspect of the invention, since the tip of the cleaning nozzle body is bent from the middle to the outside by a predetermined angle, the nozzle can be directed over a wider angle range. Therefore, it is possible to wash over a wide range.

According to the third aspect, since the cleaning liquid supply pipe is provided with a handle for operation, the operation of the main body of the cleaning nozzle of the closed tank is facilitated, and the nozzle tip position can be surely oriented in a desired direction. it can.

[Brief description of drawings]

FIG. 1 is a sectional view of a crystallization can equipped with a cleaning nozzle device of the present invention.

FIG. 2 is a cross-sectional view showing an embodiment of the closed tank cleaning nozzle device of the present invention.

[Explanation of symbols]

 1 Crystallization Can (Opening / Closing Tank) 3 Discharge Port 4 Cleaning Nozzle Device 5 Peep Window 6 Ball Receiving Member 7 Ball Body 8 Cleaning Liquid Supply Pipe 9 Cleaning Nozzle Main Body 10 Communication Passage 11 O-ring 12 Ball Storage Opening 13 Plate-shaped Member 18 Handle 20 Cleaning liquid supply pipe 21 Flexible tube

Claims (1)

[Claims] 1. A tank which has a cleaning liquid supply pipe on one side and a cleaning nozzle main body on the other side of a ball body having an outer peripheral surface formed of a spherical surface, and which connects the cleaning liquid supply pipe and the cleaning nozzle body inside the ball body to form a tank. With the cleaning nozzle body protruding to the inside and the cleaning liquid supply pipe protruding to the outside of the tank,
A cleaning nozzle device for a closed tank, which is rotatably supported by a ball receiving member attached to the tank side.