JPS5837468Y2 - Cleaning liquid injection type cleaning machine for inside tanks, etc. - Google Patents

Description

[Detailed explanation of the invention] This invention is a tank car and container for transporting petroleum products and chemical products.
This relates to cleaning machines for chemical industry or brewing tanks.

As this type of washing machine, one in which a spray nozzle is rotated by the spraying force of the cleaning liquid is known.

This cleaning machine has, for example, an injection nozzle that performs a rotational action placed on the outer circumferential surface of the box, and an injection nozzle that cleans the ceiling surface placed on the end surface of the box, so there is no blind spot between the cleaning liquid injection directions of both injection nozzles. This makes it impossible to uniformly clean the inside of the tank, etc.

Furthermore, since the injection nozzle is rotated only by the reaction force or force couple associated with the injection of the cleaning liquid, there is also the problem that high speed cannot be obtained.

This proposal was proposed in view of the above points, and it is equipped with a means that can cover the blind spot of the rotary injection nozzle and increase its rotation speed, and is capable of cleaning the inside of the tank efficiently, automatically, and evenly. The purpose of the present invention is to provide a tank-installed or hanging type cleaning machine.

That is, in this proposal, a fixed nozzle box and a rotating nozzle box are provided coaxially with a supply pipe that pumps the cleaning liquid into the nozzle box, and a nozzle is installed on the end face of the rotating nozzle box to spray the cleaning liquid toward the ceiling or floor inside the tank. A nozzle group is provided on the outer circumferential surface of the box to generate a couple in the box to give rotational force and to inject cleaning liquid toward the inner wall surface of the tank, and the outer circumferential surface of the box has various inclination angles in the vertical direction. A plurality of different cleaning liquid jet guide grooves are provided, and an auxiliary injection nozzle group is provided on the fixed nozzle box side to inject the cleaning liquid toward the cleaning liquid jet guide groove on the rotating nozzle box side, and the cleaning liquid is sprayed from the auxiliary injection nozzles. The cleaning liquid is transferred through the guide groove on the rotating nozzle box side.
Cleaning liquid in a tank, etc., configured to be sprayed in a direction that is a blind spot in the spray direction of the spray nozzles provided on the end face and outer circumferential surface of the rotating nozzle box, and to promote the rotational speed of the rotating nozzle box by the cleaning liquid spraying force of the auxiliary spray nozzle. The main topic is jet-type cleaning machines.

The present invention will be specifically explained below with reference to illustrated embodiments.

Reference numeral 1 denotes a supply pipe for pumping cleaning liquid, and at its tip an injection unit is attached, which includes a rotating nozzle box 2 for installing an injection nozzle and a fixed nozzle box 3 for installing an auxiliary injection nozzle.

The fixed nozzle box 3 has a main shaft tube 7 which is fixed to the flange 4 of the supply pipe 1 with a screw 6 through a packing 5, and which is screwed and fixed so as to protrude in the same axial direction as the supply pipe 1.

The rotating nozzle box 2 has bushes 8, 8 on the main shaft pipe 7.
1, and its bush 8 is in face-to-face contact with the bush 9 of the fixed nozzle box 3.

A flange 10 is integrally provided at the end of the main shaft tube 7, and the flange 10 is engaged with a stepped portion 13 of the interior 12 of the rotary nozzle box 2 through a thrust 11 to prevent the rotary nozzle box 2 from being removed. Rotatably supported.

The injection nozzles consist of two L-shaped nozzles 14 and 15 that clean the inner wall of the tank while rotating by generating a couple, and a nozzle group 16 that cleans the tank ceiling surface.

The two L-shaped nozzles 14 and 15 are installed at symmetrical positions so as to communicate with the interior 12 of the rotary nozzle box 2 and protrude from the outer peripheral surface thereof.

Also, the nozzle group 16 for cleaning the ceiling surface is a rotating nozzle box 2.
The lid 29 is provided in communication with the interior 12 of the lid 29 and protrudes from the upper surface of the lid 29 thereof.

The main shaft pipe of the rotating nozzle box 2 is mounted on the entire circumferential surface of the base.
．． As shown in Figures 2 and 4.5, a plurality of upwardly sloped guide grooves are provided.

The guide grooves include a pair of long grooves 17 with a small inclination angle located at symmetrical positions of the box 2, and a pair of long grooves 17 with a large inclination angle located 90 degrees apart from the long grooves 17 and a substantially W-shaped cross section. The short groove 18 and the long and short grooves 17.18
It consists of four grooves 19 having an intermediate inclination angle between the two grooves formed between the two grooves.

Reference numeral 181 indicates a ridgeline that partially defines the groove 18.

Furthermore, a slope 20 and a blade 21 perpendicular to the slope are formed on the rotation direction side of each of the grooves 17 to 19 as indicated by the arrow.

The lid 44 of the fixed nozzle box 3 has its interior 22
A plurality of auxiliary injection nozzles 23 communicating with the auxiliary injection nozzles 23 are installed in a protruding manner, and the direction thereof is inclined toward the guide groove and the blade 21.

The fixed nozzle box interior 22 and the main shaft tube 7 communicate through a communication hole 24 formed in the main shaft tube 7.

The guide groove and the auxiliary injection nozzle 23 inject the cleaning liquid in a direction that is a blind spot of the injection nozzles 14 to 16.

25 to 27 are O-rings, and 28 is a packing.

Since the present invention is configured as described above, when it is installed in the tank in the state shown in the figure and the cleaning liquid is fed under pressure to the supply pipe 1, the cleaning liquid is sent to the inside of the rotary nozzle box 12 through the main shaft pipe 7,
It is injected from the injection nozzles 14, 15, 16.

At this time, the box 2 rotates in the direction of the arrow due to the couple generated by the injection force of the injection nozzle 14.15, and the nozzle 14.1
A part of the side surface of the tank is cleaned by the nozzle 5, and a part of the top surface of the tank is cleaned by the nozzle 16.

At the same time, the cleaning liquid is forced into the fixed nozzle box interior 22 through the communication hole 24 of the main shaft pipe 7, so that the cleaning liquid is injected from the auxiliary injection nozzle 23 toward the guide groove of the rotating nozzle box 2 and the side surface of the blade.

Therefore, the injected cleaning liquid is guided by the long groove 17, the intermediate length groove 19, the short groove 18, and the slope 20, respectively, between the upper and side cleaning surfaces by the injection nozzles 14, 15 and the nozzle 16, i.e. Both nozzles spray diagonally upward, which is the blind spot, and clean that area.

Furthermore, the lower part of the tank is also cleaned by flowing down.

On the other hand, when the cleaning liquid injected from the auxiliary injection nozzle 23 hits the guide groove and the side surface of the blade, its injection force causes the rotation nozzle box 2, that is, the injection nozzles 14 to 16
rotational speed is encouraged.

Therefore, according to the washing machine of the present invention, the rotary injection nozzles 14 to 16
, the auxiliary injection nozzle 23 and the guide grooves 17/19 cooperate to automatically and uniformly clean the entire surface of the tank at a high speed.

To control the speed of the rotary nozzle box 2, remove the lid 29 of the rotary nozzle box 2, fit a tool into the cut groove 30 at the end of the main shaft tube 7, and adjust the amount of screwing into the fixed nozzle box 3. It adjusts the frictional force.

31 indicates a cylindrical screw screwed into the fixed nozzle box 3 for fixing the main shaft tube.

Figures 6 and 7 show other embodiments of the speed regulating means when the cleaning device of the present invention is hung or installed. A weight 37 attached to the annular part 34 of the rotary nozzle box 2 via a screw 35 or 36 is brought into contact with the inner surface of the rotary nozzle box 33 by centrifugal force against the tension coil spring 38. By changing the coil spring 38 in various ways, the deceleration timing with respect to the rotational speed of the rotary nozzle box 2 can be adjusted.

Also, as shown in FIG. 8, a gear 39 is attached to the rotating nozzle box 2.
is fixed, a gear 40 that meshes with the gear 39 is fixed to a shaft 41 rotatably inserted through the suspension support flange 32, and the shaft 41 is configured to rotate the windmill 43 via an acceleration gear group 42. It is also possible to control the speed of the rotating nozzle box 2 using the air resistance of the windmill 43.

In this case, the gear 39 fixed to the rotating nozzle box 2 is provided with a plurality of windows through which the cleaning liquid passes from the auxiliary injection nozzle 23 .

Reference numeral 45 denotes a gear box, which may be filled with liquid to provide resistance to the wind turbine 43.

When the cleaning machine of this invention is installed or suspended as described above, multiple nozzles for cleaning the tank ceiling are additionally installed on the circumference of the rotating nozzle box in a direction approximately perpendicular to the nozzles for generating a couple. .

When this cleaning machine is used for etching the inner surface of a tank, the rotating and fixed nozzle boxes 2 and 3 are made of hard polyvinyl chloride resin, and the bushes 8 and 9 are made of acid-resistant material such as glass-filled Teflon. It is.

[Brief explanation of drawings]

Fig. 1 is a front view of the washing machine, Fig. 2 is a side view of the washing machine, Fig. 3 is a plan view of the washing machine, Fig. 4 is a longitudinal side view of the washing machine,
Fig. 5 is a view taken along line ■-■ of Fig. 1, Fig. 6 is a front view of a modified example of the washing machine, Fig. 7 is a view taken along line VIIVII of Fig. 6, and Fig. 8 is another modified example of the washing machine. front view. 1 is a cleaning liquid supply pipe, 2 is a rotating nozzle box, 3 is a fixed nozzle box, 14, 15, 16 is a rotating injection nozzle,
17 to 19 are cleaning liquid guide grooves, 20 is a cleaning liquid guide slope, 21 is a blade, and 23 is an auxiliary injection nozzle.

Claims (1)

[Scope of Claim for Utility Model Registration] A supply pipe 1 that pressure-feeds cleaning liquid into a nozzle box is provided with a fixed nozzle box 3 and a rotating nozzle box 2 coaxially, and the end face of the rotating nozzle box 2 is connected to the ceiling or floor of the tank. A nozzle group 16 for spraying the cleaning liquid in the direction of the surface is provided on the outer peripheral surface of the box, and a nozzle group 14 and 15 for generating a rotational force by generating a couple in the box and spraying the cleaning liquid in the direction of the inner wall of the tank are provided, A plurality of cleaning liquid jet flow guide grooves 18 to 20 with various inclination angles are provided in the vertical direction on the outer peripheral surface of the box, and a plurality of cleaning liquid jet flow guide grooves 18 to 20 are provided on the fixed nozzle box 3 side toward the cleaning liquid jet flow guide groove on the rotating nozzle box 2 side. A group of auxiliary injection nozzles 23 for injecting cleaning liquid is provided, and the cleaning liquid injected from the auxiliary injection nozzles is guided by a guide groove on the side of the rotating nozzle box 2 to avoid blind spots in the injection direction of the injection nozzles provided on the end face and outer peripheral surface of the rotating nozzle box. A washing machine that sprays cleaning liquid inside a tank, etc., and is constructed so that the cleaning liquid is sprayed in a certain direction and the rotational speed of a rotating nozzle box is accelerated by the cleaning liquid jetting force of an auxiliary injection nozzle.