JPH1161902A - Cleaning device in aquarium - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a cleaning device in a water tank that can efficiently and easily wash the inside of a water tank without requiring complicated manual cleaning work. SOLUTION: A tap water introduction flow path for introducing tap water into a water tank, and tap water in the tap water introduction flow path is jetted toward an inner surface of the water tank by a water pressure of the tap water to flow through the inside of the water tank. A washing device in a water tank, comprising: a washing means for washing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device in a water tank, and more particularly, to a cleaning device in a water tank that can efficiently and easily wash the inside of a water tank without requiring complicated manual cleaning work.

[0002]

2. Description of the Related Art
For example, tap water supplied to a water receiving destination such as a building or an apartment is temporarily stored in a water receiving tank from a water supply pipe, and the tap water stored in the water receiving tank is supplied to the water receiving destination by a water supply pump or the like. Can be.

[0003] In the water receiving tank, the inside of the water receiving tank is periodically cleaned to prevent deterioration of hygiene in the water receiving tank and to maintain the water quality in the water receiving tank in a better state. Is desired.

[0004] As a method of cleaning the inside of the water receiving tank, for example, (a) in the case of a large water receiving tank having a capacity of, for example, more than 2000 l, a worker performing a cleaning operation is placed in the large water receiving tank. (B) in the case of a small water receiving tank having a capacity of, for example, 2000 l or less,
From the inspection port in the small water receiving tank, an opening of a manhole or the like, a worker performing a washing operation puts his hand in the small water receiving tank, and within a reach of the worker, the small hand-operated There was a method of cleaning the inside of the receiving tank.

In such a conventional cleaning method, since the inside of the water receiving tank is manually cleaned, there is a problem that the cleaning is costly and troublesome.

[0006] The shape of the water receiving tank varies.
For example, there is a problem that it is not easy to manually wash the inner surface, the ceiling of a water receiving tank, and the like that are difficult to reach by humans.

[0007] Therefore, it is desired to realize an in-water tank cleaning apparatus that can efficiently and easily clean the inside of a water tank such as the water receiving tank without the need for complicated manual cleaning work.

SUMMARY OF THE INVENTION An object of the present invention is to solve the conventional problems in the cleaning work in a water tank such as the water receiving tank.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an in-tank cleaning apparatus that can efficiently and easily clean the inside of a water tank without requiring complicated manual cleaning work.

[0010]

A first means for solving the above-mentioned problems is that a tap water introduction flow path for introducing tap water into a water tank and a water pressure in the tap water introduction flow path based on the water pressure of the tap water. Washing means for washing the inside of the water tank by injecting tap water toward the inner surface of the water tank, and a second means for solving the above-mentioned problem. Wherein the washing means in the first means causes the tap water introduction branch flow path branched from the tap water introduction flow path and the tap water in the tap water introduction flow path to flow into the tap water introduction branch flow path. The water tank cleaning device of the first means, comprising a flow path control means and an injection nozzle capable of injecting tap water in the tap water introduction branch flow path toward the inner surface of the water tank. is there.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

(General Description) A cleaning device in a water tank according to the present invention includes a tap water introduction flow path for introducing tap water into a water tank, and tap water in the tap water introduction flow path due to the water pressure of the tap water. Cleaning means for injecting water toward the water tank to wash the inside of the water tank.

The water tank is not particularly limited as long as it can store tap water. Examples of the water tank include a water receiving tank that can store tap water supplied to a water supply destination such as a building or an apartment. High water storage tanks, water storage tanks and the like can be mentioned.

The tap water introduction flow path is not particularly limited as long as tap water can be introduced into the water tank. The tap water introduction flow path is, for example, a communication between a tap water supply source and the water tank. And a pipeline through which tap water can be introduced into the water tank.

The tap water supply source includes, for example, a water pipe.

The number of the tap water introduction channels is not particularly limited, and an appropriate number of the tap water introduction channels can be provided according to the size, shape, and the like of the water tank.

As the pipe, for example, a pipe for storing tap water which can introduce tap water into the water tank so as to store the tap water in the tank, the pipe for storing tap water, A pipe provided separately from the channel, and a pipe for cleaning the inside of the water tank capable of introducing tap water into the water tank so that the inside of the water tank can be washed, and storing the tap water in the water tank. And a storage / washing pipeline capable of introducing tap water into the water tank so that the inside of the water tank can be washed.

In the tap water storage pipe, for example, when one end communicates with the water supply pipe and the other end is opened in the water tank, the tap water storage pipe in the water tank has: A ball tap valve or the like which can open and close the pipe for storing tap water according to the level of tap water stored in the water tank to maintain the water level constant can be provided.

For example, when the one end communicates with the water supply pipe and the other end is opened in the water tank, the inside water tank cleaning pipe can be opened and closed. An on-off valve or the like can be interposed.

Specific examples of the pipes include pipes such as small water pipes and water pipes branched from the water pipe and communicating the water pipe with the water tank.

For example, a pressure gauge, a flow meter, a water meter, a booster pump, a water supply pump, a pressure control valve, a check valve, a gate valve may be provided between the tap water supply source and the water tank in the pipe line. ,
An on-off valve, a pressure water tank, a surge tank and the like can be interposed. For example, the pressure-intensifying pump, pressure regulating valve,
By interposing a pressurized water tank or the like, the water pressure of the tap water in the pipe branched from the water pipe can be appropriately adjusted.

The water pressure of the tap water in the pipe branched from the water pipe is usually adjusted to about 1.5 to ² kg / cm ² .

The shape and material of the water tank are not particularly limited. Examples of the shape of the water tank include various polygonal prisms such as a rectangular parallelepiped, a triangular prism, a pentagonal prism, a hexagonal prism, a heptagonal prism, and an octagonal prism, and an inverted cone. , Inverted pyramids, cylinders, ellipsoids, ovals, spheroids, spheres, dodecahedrons, and icosahedrons. Examples of the material of the water tank include glass fiber reinforced plastics. , Stainless steel, galvanized steel sheet, baked painted steel sheet, ordinary steel, and aluminum alloy.

In the water tank, for example, the tap water stored in the water tank is supplied to a water-supplied destination of the building, the condominium, or the like by a water supply pipe communicating the tap water supply source with the water tank. Water supply means, and a drainage means capable of discharging tap water stored in the water tank to the outside of the water tank.

The water supply means may be composed of, for example, a water supply pipe communicating the water tank with the water supply destination, and a water supply pump interposed in the water supply pipe.

A pressure gauge, a flow meter, a water meter, a booster pump, a water supply pump, a pressure control valve, a check valve, a gate valve is provided between the water tank and the water supply destination in the water supply pipe. ,
An on-off valve, a pressure water tank, a surge tank and the like can be interposed.

The drainage means may be, for example, a drainage which communicates with the outside of the water tank through a drain port opened at a bottom surface, a side surface, or the like of the water tank, and can discharge tap water stored in the water tank to the outside of the water tank. A pipe etc. can be mentioned.

The drain pipe may be provided with a drain pipe opening / closing valve for opening and closing the drain pipe.

The washing means has a function of washing the inside of the water tank by injecting the tap water in the tap water introduction flow path toward the inner surface of the water tank by the pressure of the tap water.

The washing means may be, for example, a tap water introduction branch flow path branching from the tap water introduction flow path, and a tap water in the tap water introduction flow path flowing into the tap water introduction branch flow path. And a spray nozzle capable of spraying tap water in the tap water introduction branch channel toward the inner surface of the water tank.

Examples of the tap water introduction branch flow path include a branch pipe branching from the tap water introduction flow path.

The flow path control means is not particularly limited as long as the tap water in the tap water introduction flow path can flow into the tap water introduction branch flow path. Provided at the branch point of the tap water introduction branch flow path, when storing tap water in the water tank, the tap water introduction upstream flow path upstream of the branch point in the tap water introduction flow path and the Communicating with the tap water introduction downstream flow path downstream of the branch point in the tap water introduction flow path,
When washing the inside of the water tank, by communicating the tap water introduction upstream flow path and the tap water introduction branch flow path, a three-way valve that can control the flow path of the tap water, the tap water A valve device such as a tap water introduction passage opening / closing valve for opening and closing the introduction passage can be given.

The flow path control means may include, for example, a tap water introduction branch flow path opening / closing valve interposed in the tap water introduction branch flow path, and a tap water introduction downstream flow path interposed in the tap water introduction downstream flow path. It can be configured with a water introduction downstream flow path opening / closing valve.

In the case where the tap water introduction branch passage opening / closing valve and the tap water introduction downstream passage passage opening / closing valve are used in combination as the passage control means, the tap water introduction branch passage opening / closing valve is closed and the tap water introduction branch passage opening / closing valve is closed. By opening the tap water introduction downstream flow path opening / closing valve, tap water can be stored in the water tank, and the tap water introduction branch flow path opening / closing valve is opened to open the tap water introduction downstream flow path opening / closing valve. By closing, the flow path of tap water can be controlled so that the inside of the water tank can be washed.

Examples of the valve device include a ball valve, a gate valve, a plug valve, a ball valve, a butterfly valve, and the like. The valve device is a manual valve that is manually opened and closed by a handle or a cock. It may be a pneumatically driven valve that is opened and closed by an air cylinder or an air motor, or may be an electrically driven valve that is opened and closed by an electromagnet, a stepping motor, a servomotor, or the like.

In the case where the tap water introduction flow path is the tap water storage pipe, the washing means may include, for example, a branch pipe branched from the tap water storage pipe and the tap water storage pipe. Forming a valve device that allows tap water in a pipe to flow into the branch pipe, and an injection nozzle that can spray tap water in the branch pipe toward the inner surface of the water tank. Can be.

In the washing means, for example, when the tap water introduction flow path is the washing pipe in the water tank,
The tap water introduction branch flow path and the flow path control means can be omitted, and in this case, tap water in the cleaning tank in the water tank can be sprayed toward the inner surface of the water tank. The injection nozzle corresponds to the cleaning unit.

Examples of the spray nozzle include a sprinkler having a spray port capable of spraying tap water toward the inner surface of the water tank. The number of the spray nozzles and the number of the spray nozzles can be exemplified. The number and the like are not particularly limited, and may be one or two or more.

The shape of the injection nozzle is not particularly limited, and examples thereof include a cylindrical shape, a tubular shape, and a shape having one or more hollow arms extending outward from the surface of a tube or a cylinder. By appropriately selecting the shape of the injection nozzle, the injection port of the injection nozzle can be directed to a desired inner surface of the water tank.

In the cleaning means, for the purpose of injecting tap water into a desired inner surface of the water tank, for example, the number of the injection nozzles, the number of the injection ports, the shape of the injection nozzles, and the like are appropriately adjusted. For example, the tap water introduction flow path can be branched into a plurality of flow paths to provide a plurality of the injection nozzles, and the cleaning means can be provided by providing a plurality of the tap water introduction flow paths. Can be provided in plurality.

As the sprinkler, a conventionally known sprinkler can be mentioned. Specifically, for example,
Three arm sprinkler, three-neck sprinkler, full circle sprinkler, part circle sprinkler,
Repulsion type full circle sprinklers, repulsion type part circle sprinklers, rotary sprinklers in which sprinklers themselves rotate by the water pressure of tap water to be injected, and the like can be given.

In the sprinkler, for example, when the tap water pressure is in the range of 1 to ² kg / cm ² , by setting the diameter of the injection port in the range of 0.1 to 3 mm, for example, Even if the distance between the injection port and the inner surface of the water tank is about 1 m, it is possible to inject tap water to the inner surface of the water tank with an injection force capable of easily cleaning the inner surface of the water tank. it can.

The sprinkler can be fixed at a desired position so that tap water can be sprayed toward the inner surface of the water tank, may be fixed inside the water tank, or may be fixed at the time of cleaning. It may be provided outside the water tank so as to be inserted into the water tank and spray tap water toward the inner surface of the water tank.

The sprinkler can spray tap water toward the inner surface of the water tank during cleaning.
For example, it may be fixed to the ceiling part of the water tank, the inner wall part of the water tank, or the like, or may be supported so as to be suspended by a support member fixed to the ceiling part of the water tank,
It may be supported by a support member fixed to an inner wall portion on the inner surface of the water tank, or may be supported by a support member fixed to a floor portion of the water tank.

(Specific Description) An embodiment of the present invention will be described below in detail with reference to the drawings.

As shown in FIG. 1, an in-tank cleaning apparatus 1 according to an embodiment of the present invention has a capacity of 3 tanks.
A tap water storage pipe 3 into which tap water can be introduced into a small water receiving tank 2 having a capacity of 00 l; Means 4 for spraying toward the inside to wash the inside of the small water receiving tank 2
And The tap water storage pipe 3 corresponds to a tap water introduction flow channel in the present invention.

The tap water storage pipe 3 has one end communicating with a water supply pipe (not shown), the other end opening in the small water receiving tank 2, and the tap water in the small water receiving tank 2. The water storage pipe 3 is provided with the tap water storage pipe 3 according to the level of the tap water stored in the small water receiving tank 2.
Is provided with a ball tap valve 5 that can open and close to maintain the water level constant.

The tap water storage pipe 3 is provided with a water meter 3a capable of detecting the flow rate and pressure of tap water flowing from the water pipe, and a check valve 3b. .

The washing means 4 can flow the branch pipe 4a branched from the tap water storage pipe 3 and the tap water in the tap water storage pipe 3 into the branch pipe 4a. It has a three-way valve 4b and a sprinkler 4c capable of injecting tap water in the branch pipe 4a toward the inner surface of the small water receiving tank 2. The sprinkler 4c
Corresponds to the injection nozzle in the present invention.

The three-way valve 4 b is provided at a branch point of the branch pipe 4 a in the tap water storage pipe 3, and when the tap water is stored in the small water receiving tank 2, the branch pipe 4 a And an upstream pipe 3c upstream of the branch point in the tap water storage pipe 3 and a downstream pipe 3 downstream of the branch point in the tap water storage pipe 3
d, and a washing mode in which the downstream pipe 3d is closed and the upstream pipe 3c and the branch pipe 4a are connected when the inside of the small water receiving tank 2 is washed. The downstream pipe 3d and the branch pipe 4a are closed by closing the upstream pipe 3c to cut off the flow of tap water.
And a cutoff mode in which tap water is not flowed into any of the above.

As shown in FIG. 2, the sprinkler 4c has three hollow arms 4c ₂ provided with injection ports 4c ₁ at the tip thereof, and the branch penetrating through the upper surface 2a of the small water receiving tank 2. it is connected to the conduit 4a, the branch pipe 4a and the hollow arm 4c ₂ and the injection port 4c _1, which are fluidly forming tap water.

In the sprinkler 4c, the 3
Becomes hollow arm 4c ₂ of the present is rotatably formed in the horizontal direction, since the diameter of the injection port 4c ₁ is formed in a 0.1 to 3 mm, tap water in the tap water reservoir conduit 3 When the water pressure exceeds at least 1 kg / cm ² , tap water can be sprayed with a spraying power capable of easily cleaning the inner surface of the small water receiving tank 2.

In the sprinkler 4c,
The shape of the inner surface of the injection angle with respect to the inner surface of the injection port 4c ₁ provided in the three hollow arms 4c ₂ each, appropriately depending on the distance and the like between the inner surface and the injection port 4c ₁ It is preferable to adjust the jetting angle so that the inner side surface of the tap water stored in the small water receiving tank 2 at which the water surface is in contact with the full water level can be washed.

In the cleaning means 4, as the injection nozzle in the present invention, for example, as shown in FIG. 3, three hollow arms 4d ₂ provided with injection ports 4d ₁ on the outer peripheral surface thereof.
Can be employed.

In the sprinkler 4d, the 3
Becomes hollow arm 4d ₂ of the present is rotatably formed in the horizontal direction, the diameter of the injection port 4d ₁ is formed in 0.1 to 3 mm, the hollow arm 4d ₂ columnar hexagonal arm 4d ₃ becomes a becomes provided with the injection port 4d ₁ on the outer peripheral surface of the arm portion 4d ₃ corresponding to the side surface of the hexagonal prism. By employing the sprinkler 4d, the inner surface corresponding to the ceiling of the small water receiving tank 2 can be particularly preferably cleaned.

The small water receiving tank 2 includes a wave preventing cylinder 6,
Overflow pipe 7, drainage means 8, manhole 9
And a water supply means 10 capable of supplying tap water stored in the small water receiving tank 2 to a water supply destination (not shown).

The drainage means 8 communicates with the outside of the small water receiving tank 2 through a drain port 8a provided on the side surface 2b of the small water receiving tank 2 near the bottom surface 2c of the small water receiving tank 2, and It has a drain pipe 8b capable of discharging tap water stored therein outside the small water receiving tank 2, and a drain pipe opening / closing valve 8c for opening and closing the drain pipe 8b. A collecting tank (not shown) that can collect water discharged to the outside of the small water receiving tank 2 and a chemical solution to be described later is provided at the other end of the drainage pipe 8b whose one end communicates with the drainage port 8a. ) Can also be provided.

The water supply means 10 has a water supply pipe 10a for communicating the small water receiving tank 2 with the water supply destination, and a water supply pump 10b interposed in the water supply pipe 10a.

The water supply line 10a is connected to the water supply pump 1
And the suction-side water supply conduit 10a ₁ of the small receiving tank tap water stored in 2 can be sucked into the feed water pump 10b by suction action = 0b, the water supply pump 10b by the discharge action of the feed water pump 10b the tap water discharged from the consisting and a discharge-side water supply conduit 10a ₂ can be supplied to the object to be water supply destination.

Next, the operation of the in-water tank cleaning device 1 will be described.

By setting the three-way valve 4b in the washing means 4 of the washing device 1 in the water tank to the storage mode,
Tap water can be introduced from the water supply pipe into the small water receiving tank 2 via the tap water storage pipe 3, and after storing a predetermined amount of tap water in the small water receiving tank 2, By operating the water supply pump 10b in 10, the tap water stored in the small water receiving tank 2 can be supplied to the water supply destination by the pump action of the water supply pump 10b.

When cleaning the inside of the small water receiving tank 2,
First, the water supply pump 10b is stopped, the three-way valve 4b in the cleaning means 4 of the in-tank cleaning device 1 is switched to a shut-off mode, the drainage pipe opening / closing valve 8c in the drainage means 8 is opened, and the drainage pipe is opened. Tap water is discharged from the inside of the small water receiving tank 2 to a predetermined drainage destination (not shown) outside the small water receiving tank 2 by the path 8b.

After draining the tap water from the small water receiving tank 2, the three-way valve 4b in the washing means 4 is switched to a washing mode, the downstream pipe 3d is closed, and the upstream pipe 3c and the branch are connected. Tap water is supplied from the water pipe to the sprinkler 4c by communicating with the pipe 4a.

[0063] The sprinkler 4c is supplied to the tap water, the three internal to the distribution of the hollow arm 4c ₂ of the three hollow arms 4c ₂ the injection port 4c ₁ respectively provided in the tip portion Is sprayed toward the inner surface of the small water receiving tank 2.

The three hollow arms 4c ₂ of the sprinkler 4c are horizontally rotated by the flow of tap water through the three hollow arms 4c _{2 and} the injection of tap water from the injection ports 4c _1. , The inner surface such as a side surface and a bottom surface of the small water receiving tank 2, the tap water storage pipe 3 provided in the small water receiving tank 2, and the ball tap valve 5. the wave prevention tube 6, the overflow pipe 7, the aquarium features of said equal suction-side water supply conduit 10a ₁ can be easily cleaned.

During the cleaning of the small water receiving tank 2,
Since the washed tap water discharged from the small water receiving tank 2 can be sent to a predetermined drainage destination, for example, a cleaning liquid, a disinfecting liquid, or the like is put into the small water receiving tank 2 from the manhole 9 and the water is supplied. The cleaning effect can be improved,
A chemical liquid injection means for injecting a chemical liquid such as a cleaning liquid or a disinfecting liquid into the small water receiving tank 2 may be provided.

As the chemical liquid injection means, for example, a chemical liquid tank (not shown) for storing a chemical liquid, and a chemical liquid feed pipe (not shown) for communicating the chemical liquid tank with the inside of the small water receiving tank 2. And a liquid feed pump (not shown) interposed in the chemical liquid feed pipe, and a chemical liquid spray nozzle (not shown) capable of injecting a chemical liquid to the inner surface of the small water receiving tank 2. As shown in FIG. 7, there can be cited a chemical liquid injection means and a chemical liquid injection orifice pipe 18 interposed in the branch conduit 4a.

The orifice pipe 18 has an orifice 19 capable of increasing the velocity of a fluid flowing through the branch pipe 4a, a chemical supply pipe 20 communicating with the orifice 19, and a chemical supply pipe 20. A chemical solution discharge pipe 21 capable of discharging a chemical solution or the like therein to a predetermined recovery tank (not shown), a three-way valve 22 capable of communicating the chemical solution supply pipe 20 with the chemical solution discharge pipe 21, The cleaning liquid supply pipe 23b communicating with the cleaning liquid tank 23a, the disinfecting liquid supply pipe 24b communicating with the disinfecting liquid tank 24a, and the chemical liquid supply pipe 20 communicating with the cleaning liquid supply pipe 23b or the disinfecting liquid supply pipe 24b. Switching valve 25
And

The three-way valve 22 has a flow shutoff mode for shutting off the chemical supply pipe 20 so as not to flow, a chemical injection mode for injecting the chemical in the chemical supply pipe 20 into the orifice 19, Pipe 20 and the above-mentioned chemical solution discharge pipe 2
1 can be set as the discharge mode.

The switching valve 25 is provided in a closed mode in which the chemical is not injected into the chemical supply pipe 20,
And a disinfectant injection mode in which the chemical supply pipe 20 and the disinfectant supply pipe 24b communicate with each other.

When the three-way valve 22 is set to the chemical liquid injection mode and the switching valve 25 is set to the cleaning liquid injection mode or the disinfectant liquid injection mode, the inside of the orifice 19 becomes the chemical liquid supply pipe 2.
Since the pressure becomes negative as compared with the inside of 0, a chemical such as a cleaning liquid or a disinfectant can be injected into the orifice 19 from the chemical supply pipe 20.

In order to discharge a chemical solution or the like in the chemical solution supply pipe 20 to a predetermined recovery tank (not shown), the three-way valve 22 is set to a discharge mode, and the switching valve 25 is set to a closed mode. Tap water flows from the orifice 19 into the chemical supply pipe 20 and the tap water and the chemical in the chemical supply pipe 20 flow through the chemical discharge pipe 21 to a predetermined recovery tank. Is discharged.

When a chemical solution or the like is put into the small water receiving tank 2 or when the chemical liquid injection means is used, the sprinkler 4 is washed after the small water receiving tank 2 is washed.
By spraying tap water into the small-sized water receiving tank 2 from c, the inside of the small-sized water receiving tank 2 is rinsed to completely discharge a chemical solution or the like.

After confirming that the chemical solution or the like has been completely discharged from the small water receiving tank 2, the drainage pipe opening / closing valve 8c is closed, the three-way valve 4b is switched to the storage mode, and the small water receiving tank 2 is put into the small water receiving tank 2. By storing tap water and operating the water supply pump 10b, the tap water stored in the small water receiving tank 2 can be supplied to the water supply destination.

As shown in FIG. 4, an in-tank cleaning device 11 according to another embodiment of the present invention is capable of introducing tap water into a small water receiving tank 2 having a capacity of 300 liters. The tap water in the tap water storage pipe 3 is sprayed toward the inner surface of the small water tank 2 by the pressure of the tap water storage pipe 3 and the water pressure of the tap water to wash the inside of the small water tank 2. Cleaning means 12. The tap water storage pipe 3 corresponds to a tap water introduction flow channel in the present invention.

The washing means 12 can cause the branch pipe 4a branching from the tap water storage pipe 3 and the tap water in the tap water storage pipe 3 to flow into the branch pipe 4a. A three-way valve 4b, the sprinkler 4c capable of injecting tap water in the branch pipe 4a toward the inner surface of the small water tank 2, and a branch from the branch pipe 4a in the small water tank 2. And an impulse capable of injecting tap water in the branch line 4a toward the inner surface of the small water receiving tank 2 through the extension branch line 13a. Type sprinkler 13b
And a tubular injection nozzle 14 branched from the branch pipe 4a in the small water receiving tank 2. The sprinkler 4c, the impulse sprinkler 13b, and the tubular injection nozzle 14 correspond to an injection nozzle in the present invention.

[0076] As shown in FIG. 5, the impulse-type sprinkler 13b includes a injection port 13b ₁ of the bore is formed in 0.1 to 3 mm, injection direction of tap water to be injected from the injection port 13b ₁ the a ,, the branch conduit 4a and a deflector 13b ₂ which can be adjusted with the extension branch conduit 13a and the injection port 13b ₁ is formed by fluidly forming tap water in a desired direction.

The tubular injection nozzle 14 has an injection pipe 14a communicating with the branch pipe 4a and a diameter of 0.1 to 3
mm, and the injection pipe 14a is appropriately deformed to form the injection port 14b.
b is formed so that it can be directed to a desired inner surface of the small water receiving tank 2.

In the cleaning means 12, the sprinkler 4c, the impulse type sprinkler 13b, and the tubular jet nozzle 14 allow the small water receiving tank 2 to have an inner surface such as a side surface and a bottom surface and the inside of the small water receiving tank 2. the tap water reservoir conduit 3 provided, the ball tap valve 5, the wave preventing tube 6, the overflow pipe 7, the aquarium features of said equal suction-side water supply conduit 10a ₁ can be easily cleaned.

As shown in FIG. 6, an in-tank cleaning apparatus 15 according to still another embodiment of the in-tank cleaning apparatus of the present invention comprises:
A pipe 16a for cleaning the inside of the tank, which can introduce tap water into the small water receiving tank 2 having a capacity of 300 l, a pipe opening / closing valve 16b for opening and closing the pipe 16a for cleaning the inside of the water tank, A sprinkler 4c for washing the inside of the small water receiving tank 2 by jetting tap water in the inside of the water tank washing pipe 16a toward the inner surface of the small water receiving tank 2 by water pressure. The pipe 16a for cleaning in the water tank corresponds to a tap water introduction flow path in the present invention, and the sprinkler 4c corresponds to a cleaning means in the present invention.

The small water receiving tank 2 has a wave preventing cylinder 6,
An overflow pipe 7, a drainage means 8 having a drainage port 8 a, a drainage pipe 8 b, and a drainage pipe opening / closing valve 8 c, a manhole 9, and a destination to which tap water stored in the small water receiving tank 2 is supplied (shown in FIG. Water supply line 10).
a water supply means 10 having a water supply pump 10b and a tap water storage pipe 17 capable of introducing tap water into the small water receiving tank 2;
Is provided with a storage pipeline opening / closing valve 17a for opening and closing the tap water storage pipeline 17.

The tap water storage pipe 17 has one end connected to a water supply pipe (not shown), the other end open in the small water receiving tank 2, and the tap water in the small water receiving tank 2. A ball tap valve which can open and close the tap water storage pipe 17 in accordance with the level of tap water stored in the small water receiving tank 2 to maintain the water level constant in the water storage pipe 17. 5 are provided.

Next, the operation of the in-water tank cleaning device 15 will be described.

The cleaning pipe opening / closing valve 16b in the water tank cleaning apparatus 15 is closed, and the storage pipe opening / closing valve 17 is closed.
By opening a, tap water can be introduced from the water supply pipe into the small water receiving tank 2 through the tap water storage pipe 17, and a predetermined amount of tap water is stored in the small water receiving tank 2. After that, the tap water stored in the small water receiving tank 2 can be supplied to the water supply destination by the water supply means 10.

When cleaning the inside of the small water receiving tank 2,
First, the water supply pump 10b is stopped, the washing pipeline opening / closing valve 16b is closed, the storage pipeline opening / closing valve 17a is closed, and the drainage pipeline opening / closing valve 8c in the drainage means 8 is opened. A predetermined drainage destination (not shown) from the inside of the small water receiving tank 2 to the outside of the small water receiving tank 2 by the path 8b.
To drain tap water.

After the tap water is discharged from the small water receiving tank 2, the washing pipe opening / closing valve 16b is opened, and the storage pipe opening / closing valve 17a is closed, so that the water is supplied from the water pipe to the sprinkler 4c. Supply water.

The sprinkler 4c can inject the tap water in the water tank washing pipe 16a toward the inner surface of the small water receiving tank 2 by the water pressure of the tap water.
The inner surface such as the side surface and the bottom surface of the small water receiving tank 2, the tap water storage pipe 17 provided in the small water receiving tank 2, the ball tap valve 5, the wave prevention cylinder 6, the overflow pipe 7, Facilities in the water tank such as the water supply pipe 10a can be easily cleaned.

After the washing in the small water receiving tank 2,
By closing the drain pipe opening / closing valve 8c, closing the washing pipe opening / closing valve 16b, and opening the tap water storage pipe 17, the tap water is stored in the small water receiving tank 2, and the water supply pump is opened. 10b, the small water receiving tank 2
The tap water stored in the water supply destination can be supplied to the water supply destination.

In the present invention, for example, an electrically driven three-way valve is employed as the three-way valve 4b in the in-water tank cleaning device 1, and the drainage pipe opening / closing valve 8 provided in the small water receiving tank 2 is used.
An electrically driven drainage pipe opening / closing valve is adopted as c, and the electrically driven three-way valve, the electrically driven drainage pipe opening / closing valve, and the feed pump 10b can be controlled by a control device such as a sequencer or a CPU. .

Further, an electrically driven cleaning pipe opening / closing valve is employed as the cleaning pipe opening / closing valve 16b in the water tank cleaning device 15, and a storage pipe opening / closing valve provided in the tap water storage pipe 17 is provided. An electrically driven drainage pipe opening / closing valve is employed as 17a, and an electrically driven drainage pipe opening / closing valve is provided as the drainage pipe opening / closing valve 8c provided in the small water receiving tank 2. And the electric drive storage pipe opening / closing valve, the electric drive drain pipe opening / closing valve, and the water supply pump 10b
Can be controlled by, for example, the control device.

Further, an electrically driven three-way valve is employed as a three-way valve capable of flowing tap water in the tap water introduction flow path into the tap water introduction branch flow path, and tap water for opening and closing the tap water introduction flow path is provided. An electrically driven tap water inlet / outlet valve is employed as the introduction passage opening / closing valve, an electrically driven drainage line opening / closing valve is employed as the drainage passage opening / closing valve, and the electrically driven three-way valve and the electrically driven tap water introduction valve are employed. A flow path opening / closing valve, the electric drive drainage pipe opening / closing valve, the water supply pump, and the water meter,
A pressure gauge that can detect the water pressure in the tap water introduction channel and a water level level meter that detects the level of tap water stored in the water tank can be combined, and these are controlled by, for example, the control device or the like. can do.

In the present invention, by employing the control device, the washing operation in the water tank can be performed fully automatically.

[0092]

According to the apparatus for cleaning the inside of a water tank of the present invention, the cleaning operation inside the water tank does not require complicated cleaning work by hand, so that the inside of the water tank can be efficiently and easily cleaned. Can save labor.

[Brief description of the drawings]

FIG. 1 is a schematic view showing one embodiment of a cleaning device in a water tank according to the present invention.

FIG. 2 is a schematic view showing an example of an injection nozzle that can be employed as a cleaning unit in the present invention.

FIG. 3 is a schematic view illustrating an example of an injection nozzle that can be employed as a cleaning unit in the present invention.

FIG. 4 is a schematic view showing another embodiment of the in-water tank cleaning apparatus of the present invention.

FIG. 5 is a schematic view showing an example of an injection nozzle that can be employed as a cleaning unit in the present invention.

FIG. 6 is a schematic view showing still another embodiment of the in-water tank cleaning apparatus of the present invention.

FIG. 7 is a schematic view showing an example of a chemical solution injection means according to the present invention.

[Explanation of symbols]

1 ・ ・ ・ Washing device in water tank, 2 ・ ・ ・ Small water receiving tank, 2a ・
..Top surface, 2b ... side surface, 2c ... bottom surface, 3 ...
Tap water storage pipeline, 3a ... water meter, 3b ...
Check valve, 3c upstream line, 3d downstream line, 4 washing means, 4a branch line, 4b
・ Three-way valve, 4c ・ ・ ・ Sprinkler, 4c ₁・ ・ ・ Injection port, 4c ₂・ ・ ・ Hollow arm, 4d ・ ・ ・ Sprinkler, 4d ₁・ ・ ・ Injection port, 4d ₂・ ・ ・ Hollow arm, 4
d ₃ ... arm part, 5 ... ball tap valve, 6 ...
-Wave prevention cylinder, 7-overflow pipe, 8-drainage means, 8a-drainage port, 8b-drainage pipe, 8c
... Drainage pipe opening / closing valve, 9 ... Manhole, 10 ...
・ Water supply means, 10a ・ ・ ・ water supply line, 10b ・ ・ ・ water supply pump, 10a ₁・ ・ ・ suction side water supply line, 10a ₂・ ・
・ Discharge side water supply line, 11 ・ ・ ・ Washing device in water tank, 12 ・
..Cleaning means, 13a...
.Impulsive sprinklers, 13b ₁ ... injection ports, 13b
₂ ... deflector, 14 ... tubular injection nozzle, 14
a ... injection pipe, 14b ... injection port, 15 ... cleaning device in water tank, 16a ... pipe line for cleaning in water tank, 16b
..Pipe opening / closing valves for washing, 17 ... pipe for tap water storage
17a: storage pipeline opening / closing valve, 18: chemical liquid injection orifice pipe, 19: orifice, 20: chemical liquid supply pipe, 21: chemical liquid discharge pipe, 22: three-way valve, 23
a: cleaning liquid tank, 23b: cleaning liquid supply pipe, 2
4a: disinfectant tank, 24b: disinfectant supply pipe,
25 ... Switching valve.

Claims (2)

[Claims] 1. A tap water introduction flow path for introducing tap water into a water tank, and tap water in the tap water introduction flow path is jetted toward the inner surface of the water tank by the pressure of the tap water, so that the inside of the water tank is discharged. Cleaning means for cleaning the inside of a water tank. 2. The tap water introduction branch flow path branching from the tap water introduction flow path and the tap water in the tap water introduction flow path into the tap water introduction branch flow path. The inside of the water tank according to claim 1, comprising a flow path control means for flowing the water, and an injection nozzle capable of jetting tap water in the tap water introduction branch flow path toward an inner surface of the water tank. Cleaning equipment.