JP2512079Y2 - Emergency water tank device - Google Patents

Description

[Detailed Description of Device] a. Purpose of the Invention [Field of Industrial Application] The present invention relates to a so-called emergency water storage tank device having a water storage tank for securing emergency water, particularly drinking water in the event of a disaster such as an earthquake.

[Conventional technology]

As a known technology of this kind of emergency water storage device,
-41767 is proposed.

However, according to the known technique, since the inflow pipe and the outflow pipe are simply arranged at the lower part and the upper part in the water tank, there is a tendency that the water flow in the water tank is not smooth, and There is no compensation that dead water does not occur, and as a result, a part of the inflow water may stay in the water tank for a long time, resulting in water spoilage due to lack of residual chlorine, which makes it unusable for drinking.

[Problems to be solved by the invention]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and has been made to solve the problems of the above-described prior art, and to provide a water tank apparatus that further improves water circulation in the water tank and that does not retain accumulated water. With the goal.

B. Configuration of the Invention [Means for Solving the Problems] The emergency water tank device of the present invention has the following configuration (technical means) to achieve the above object. That is, in a water tank which is composed of a tubular body having a right circular tube shape and upstream and downstream end plates at both ends thereof, and which is installed with the tubular axis direction of the tubular body horizontal, the water tank is located inside the water tank. Connected to the supply pipe on the upstream side, from the upstream side to the downstream side, and
An inflow pipe, which is spirally arranged along the inner wall surface of the water tank and has a plurality of outflow holes formed at substantially equal intervals, and upstream along the spiral central axis of the inflow pipe. Outflow pipes that are arranged from the end to the downstream end and that are formed with a large number of small holes at substantially equal intervals, and the end is connected to the discharge pipe on the downstream side,
It is characterized by consisting of.

[Action]

The tap water sent into the water storage tank once enters the water storage tank through the supply pipe, is then guided from the inflow pipe connected to the supply pipe to the outflow pipe, and then the discharge connected to the inflow pipe. It flows out of the water tank through a pipe.

During this time, in the water tank, the inflow pipe is spirally arranged along the inner wall surface of the water tank and the outflow hole is opened over the entire length, and the outflow pipe is arranged along the spiral axis of the inflow pipe. Since the water is distributed and the inflow hole is opened over the entire length, the water discharged from the outflow hole becomes active in all parts, and then the running water in the water tank concentrates and flows into the outflow pipe. No accumulated water is generated.

〔Example〕

An embodiment of the emergency water tank device of the present invention will be described with reference to the drawings.

1 to 4 show an embodiment thereof. That is, FIG. 1 shows the mounting relationship of the emergency water storage tank device with the water distribution pipe, FIG. 2 shows the entire structure of the emergency water storage tank device, and FIGS. 3 and 4 show the main parts thereof. The structure is shown.

In FIG. 1, 1 is a water tank, 2 is a distribution pipe, and two branch pipes 3 and 4 are installed in the middle of the distribution pipe 2,
The upstream branch pipe 3 is connected to the supply pipe 6 of the water storage tank 1 via the supply connection pipe 5. Further, the downstream side branch pipe 4 is connected to a discharge pipe 8 of the water storage tank 1 through a discharge connection pipe 7. A water control valve 10 is provided between the upstream side branch pipe 3 and the downstream side branch pipe 4. 11 is a sluice valve, and 12 is a flexible joint. Normally, the water control valve 10 is closed and the sluice valve 11 is opened.

The internal structure of the water storage tank device will be described with reference to FIGS. 2 to 4.

The water tank 1 includes a tubular body portion 15, an upstream end plate 16 and a downstream end plate.
17 and its main body.

More specifically, the tubular body portion 15 has a large-diameter circular tubular body,
The end plates 16 and 17 are fixed by abutting both ends of the tubular body portion 15.
The water tank 1 is entirely made of steel or reinforced plastic (FR
P) etc.

 An inflow pipe 18 and an outflow pipe 19 are arranged in the water storage tank 1.

The inflow pipe 18 has a spiral shape, one end of which is connected to the upstream supply pipe 6 and the other end of which extends to the downstream end of the water storage tank 1. Reference numeral 21 is a fixing rib for fixing the inflow pipe 18 in the water tank 1.

Thus, the inflow pipe 18 is arranged along the inner wall of the pipe body portion 15 of the water storage tank 1, and the inflow pipe 18 is provided with the outflow hole 22 formed of a large number of small holes.

The outflow pipe 19 is composed of a straight pipe portion 23, horizontal pipe portions 24 at both ends thereof, and a vertical connecting pipe portion 25. The horizontal pipe portion 24 projects from the water storage tank 1 in the vicinity of the upstream and downstream end plates 16 and 17. Is fixed to the supporting plate 26 and arranged orthogonally to the pipe axis of the water storage tank 1, and the straight pipe portion 23 is arranged along the axis of the water storage tank 1. The straight pipe portion 23 and the horizontal pipe portion 24 are provided with inflow holes 27 formed of a large number of small holes.

The outflow pipe 19 is connected to the discharge pipe 8 via a vertical connection portion 25 on the downstream side.

A manhole portion 30 is provided above the water tank 1, and an exhaust valve device 31, a pump water suction pipe 32, and a fire hydrant water suction pipe (not shown) are installed in the manhole portion 30. A pump device 34 is attached to an upper portion of the pump water suction pipe 32 via a pump water shutoff valve 33. Further, a water stop valve 35 for the fire hydrant is attached to the water intake pipe for the fire hydrant. The manhole portion 30 is protected by the valve chamber 36.

 A drain part 38 is appropriately provided at the bottom of the water storage tank 1.

The characteristic feature of this embodiment is the arrangement of the inflow pipe 18 and the outflow pipe 19.

That is, the inflow pipe 18 is spirally arranged from the upstream side to the downstream side, and the outflow pipe 19 is arranged along the central axis thereof, thereby causing a considerable action.

 The emergency water storage tank device of this embodiment operates as follows.

Clean water is always fed into the water tank 1 from the supply pipe 6 via the upstream water distribution pipe 2 and the supply connection pipe 5. Supply pipe 6
The clean water from is led to the inflow pipe 18, and sent out into the water tank 1 through the outflow hole 22.

On the other hand, in the outflow pipe 19, through the inflow hole 27, the water tank 1
The clean water inside flows in and is discharged from the discharge pipe 8 to the outside of the water tank 1 through the vertical connection portion 25 of the outflow pipe 19. The clean water flows out to the downstream water distribution pipe 2 through the discharge connection pipe 7.

In this process, in the water tank 1, the inflow pipe 18
Is spirally arranged along the inner wall surface of the water tank 1, and the outflow hole 22 is opened over the entire length, so that the inflow pipe is
The water discharged from 18 goes in all directions in the water tank 1, the outflow pipe 19 is arranged on the central axis of the spiral of the inflow pipe 18, and the inflow hole 27 is opened over the entire length. The running water in the water storage tank 1 concentrates and flows into the outflow pipe 19, and as a result, no accumulated water is generated in the running water in the water storage tank 1.

Now, when the water pipe is cut off in an emergency such as an earthquake and drinking water is required, the sluice valve 11 connected to the branch pipes 3 and 4 is shut off, and the pump device 34 is arranged above the water tank 1. ,
The water in the water tank 1 is sucked up. At that time, the atmospheric air is sucked through the exhaust valve 31 and does not generate a negative pressure in the water storage tank 1.

Further, when it becomes necessary to temporarily stop the flow of water in the water storage tank 1, the gate valve 11 is shut off and the water control valve 10 is opened, so that the operation is carried out without water interruption.

Further, in the emergency water tank device of the present embodiment, since the water tank is placed horizontally, it does not increase the excavation depth when installed underground, and earthwork such as excavation and installation is reduced.

C. Effect of the Invention According to the emergency water tank device of the present invention, a large number of small holes are formed in the inflow pipe and the outflow pipe over the entire length, and the outflow of the inflow pipe is caused by the positional relationship between the inflow pipe and the outflow pipe. The water discharged from the holes in the water storage tank is in a live water state in all parts, the inflow water in the water storage tank is circulated better than in the conventional water storage device, and accumulated water is not generated.

[Brief description of drawings]

The drawings show an embodiment of the emergency water tank device of the present invention,
FIG. 2 is a plan view showing the mounting relationship with the water distribution pipe of the embodiment, FIG. 2 is a longitudinal sectional view thereof, FIG. 3 is a sectional view taken along line XX of FIG. 2, and FIG. It is a YY line sectional view. 1 ... Water tank, 15 ... Tube part, 16 ... Upstream end plate, 17 ...
… Downstream end plate, 18 …… Inflow pipe, 19 …… Outflow pipe

Claims (1)

(57) [Scope of utility model registration request] 1. A water storage tank comprising a tubular portion having a right circular tube shape and upstream and downstream end plates at both ends of the tubular portion, the tubular portion being installed with the pipe axis direction horizontal. Inside, there is an outflow hole that is connected to an upstream supply pipe, is arranged in a spiral shape from the upstream side to the downstream side, and along the inner wall surface of the water storage tank, and has a large number of small holes. The inflow pipes that are formed at substantially equal intervals, and the inflow holes that are arranged from the upstream end to the downstream end along the spiral central axis of the inflow pipe and that are made up of a number of small holes are substantially evenly spaced. An emergency water tank device comprising: an outflow pipe, which is opened with a discharge pipe connected to a discharge pipe on the downstream side.