Self-cleaning tap water storage tank

Abstract

The utility model discloses a kind of self-flushing tap water water storage tank, including the rectangular box with square bottom plate, vertical water inlet pipe for inputting municipal tap water into tank is equipped in the center position of tank top plate, water outlet hole is opened in the center position of tank bottom plate, vertical water supply pipe is connected below water outlet hole, the cyclone device that makes the water of water outlet hole periphery rotate and enter water outlet hole is equipped above water outlet hole of tank bottom plate, the flow guide cone that makes the water flow of water inlet pipe output four corners of tank bottom plate is equipped on cyclone device, the flow guide cone is four edge flow guide cone, the cone bottom of four edge flow guide cone is square, the diagonal line of square is perpendicular to tank bottom plate boundary line.The self-flushing tap water water storage tank is washed automatically when working to tank bottom plate and four corners, prevent the water of corner area metamorphism, tap water flows well in water tank, impurity is not easy to deposit in water tank.

Description

Technical Field

[0001] This utility model relates to a tap water storage tank, and more particularly to a tap water storage tank with a self-flushing function. Background Technology

[0002] Water storage tanks are essential equipment in residential secondary water supply systems used to store municipal tap water. When the municipal tap water supply is interrupted or insufficient, the water in the storage tank needs to be used to supplement it. To meet the special requirement of uninterrupted water supply in residential areas, these water storage tanks are usually not emptied. This causes water in areas far from the line connecting the inlet and outlet to remain in the storage tank for a long time without being discharged, resulting in the tap water in that area becoming contaminated and rotten. To address this issue, CN 217325631 U discloses an anti-deterioration tap water storage tank, comprising a rectangular tank body, an inlet, an outlet, and distributed internal water intake pipes. The distributed internal water intake pipes include a main water intake pipe connected to the outlet and extending towards the inlet, with multiple branch water intake pipes symmetrically connected to both sides of the main water intake pipe. Multiple water intake holes are distributed along the length of the main and branch water intake pipes. On the main water intake pipe, the diameter of the water intake hole near the outlet is smaller than that of the water intake hole farther from the outlet. On the branch water intake pipes, the diameter of the water intake hole near the main water intake pipe is smaller than that of the water intake hole farther from the main water intake pipe. The water in this anti-deterioration tap water storage tank does not flow in a straight line between the inlet and outlet, allowing for uniform water output from all areas of the tank. The water in the tank will not deteriorate over a long period, and the tank has a long cleaning cycle and low maintenance costs. However, during the use of this type of tap water storage tank, dead zones will form at the four bottom corners of the tank, causing the water in these areas to deteriorate, produce odors, and affect user experience. In addition, this distributed water intake method will also cause poor water flow in the tank, making it easy for impurities to accumulate on the bottom plate of the tank, resulting in scale buildup and affecting water quality. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a self-flushing tap water storage tank. When the self-flushing tap water storage tank is working, it will automatically flush the bottom plate and four corners of the storage tank to prevent the water in the corner area from deteriorating. The tap water flows well in the tank and impurities are not easy to accumulate in the tank.

[0004] The technical solution adopted to solve the technical problem is as follows: A self-flushing tap water storage tank includes a rectangular tank with a square bottom plate. A vertical water inlet pipe for inputting municipal tap water into the tank is provided at the center of the top plate of the tank. A water outlet is opened at the center of the bottom plate of the tank. A vertical water supply pipe is connected below the water outlet. A vortex device is provided above the water outlet on the bottom plate of the tank to rotate the water around the water outlet into the water outlet. A guide cone is provided on the vortex device to guide the water output from the water inlet pipe to flow towards the four corners of the bottom plate of the tank. The guide cone is a square guide cone with a square base. The diagonal of the square is perpendicular to the edge of the bottom plate of the tank. The axis of the square guide cone coincides with the axis of the vertical water inlet pipe.

[0005] As a further improvement of this utility model: the quadrangular guide cone is composed of a square flat plate and four identical arc-shaped plates, and the arc-shaped plates are projected as isosceles right triangles on the horizontal plane.

[0006] As a further improvement of this utility model: the swirling device is composed of four identical arc-shaped guide vanes arranged at 90-degree intervals with the center of the water outlet as the center, and the axis of the arc-shaped guide vanes is perpendicular to the bottom plate of the box.

[0007] As a further improvement of this utility model: the swirling device is hidden under the four-sided guide cone, and the projection outline of the four arc-shaped guide vanes on the horizontal plane does not exceed the projection outline of the four-sided guide cone on the horizontal plane.

[0008] As a further improvement of this utility model: the outer edges of the four arc-shaped guide vanes are vertically aligned with the four vertices of the bottom of the quadrangular guide cone.

[0009] As a further improvement of this utility model: the height of the arc-shaped guide vane is not less than 0.5 times the radius of the water outlet hole.

[0010] As a further improvement of this utility model: the distance from the top of the four-sided guide cone to the inlet of the water inlet pipe is not greater than the diameter of the water inlet pipe.

[0011] Beneficial effects: This utility model's self-flushing tap water storage tank employs a vortex device above the water outlet on the tank's bottom plate, causing water around the outlet to rotate and enter the outlet. This vortex device guides the water in the tank to rotate as it enters the outlet, increasing water flow and preventing impurities from accumulating on the tank's bottom plate. It also flushes the tank's bottom plate and four walls. Furthermore, the vortex device incorporates guide cones that direct the water flow from the inlet pipe towards the four corners of the tank's bottom plate. The four-sided guide cone, with its square base and diagonal perpendicular to the edge of the tank's bottom plate, directs water flow to the four corners of the bottom plate, where water is most susceptible to spoilage. This fully utilizes the kinetic energy of municipal tap water to flush these corners, eliminating dead zones and preventing water spoilage. This self-flushing tap water tank requires no external equipment or power, automatically flushing the tank's interior. It features a simple structure, low operating costs, and long maintenance cycles. Furthermore, the four-sided guide cone, composed of a square flat plate and four identical arc-shaped plates that project as isosceles right triangles on a horizontal plane, is easier to manufacture and process. Because the swirling device consists of four identical arc-shaped guide vanes arranged at equal angles around the center of the outlet, with the axes of the arc-shaped guide vanes perpendicular to the bottom plate of the tank, the structure is further simplified while achieving water flow rotation. Since the swirling device is hidden under the four-sided guide cone, the projected outlines of the four arc-shaped guide vanes on the horizontal plane do not exceed the projected outlines of the four-sided guide cone on the horizontal plane, effectively preventing interference between the water flow guided to the four corners by the four-sided guide cone and the water flow around the inlet. Because the outer edges of the four arc-shaped guide vanes are vertically aligned with the four vertices of the bottom plate of the four-sided guide cone, the swirling effect is maximized while avoiding the aforementioned interference. By reasonably limiting the ratio of the height of the arc-shaped guide vanes to the radius of the outlet, the water flow velocity in the bottom plate area of ​​the tank is maximized without affecting the water supply flow rate, thereby further preventing impurities from depositing on the bottom plate of the water storage tank. By reasonably limiting the distance from the apex of the four-sided guide cone to the inlet pipe, the guiding effect of the four-sided guide cone is improved. Attached Figure Description

[0012] The self-flushing tap water storage tank of this utility model will be further described in detail below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the internal structure of the self-flushing tap water storage tank of this utility model;

[0014] Figure 2This is an exploded view of the swirling device and the four-sided guide cone in the self-flushing tap water storage tank of this utility model. Detailed Implementation

[0015] like Figure 1 As shown, the self-flushing tap water storage tank of this utility model includes a rectangular box body 3 with a square base plate 6. A vertical water inlet pipe 2 is provided at the center of the top plate 1 of the box body for inputting municipal tap water into the box body. A water outlet hole 9 is opened at the center of the bottom plate of the box body. A vertical water supply pipe 7 is connected below the water outlet hole. A vortex device 5 is provided above the water outlet hole of the bottom plate of the box body to make the water around the water outlet hole rotate and enter the water outlet hole. A guide cone 4 is provided on the vortex device to make the water output from the water inlet pipe flow to the four corners of the bottom plate.

[0016] like Figure 2 As shown, the guide cone is a square guide cone with a square base. The diagonal of the square is perpendicular to the edge of the bottom plate of the tank. The square guide cone is composed of a square flat plate and four identical arc-shaped plates. The arc-shaped plates project as isosceles right triangles on the horizontal plane. The vortex device consists of four identical arc-shaped guide vanes 8 arranged at 90-degree intervals around the center of the water outlet. The axis of the arc-shaped guide vanes is perpendicular to the bottom plate of the tank. The water inlet pipe, water supply pipe, vortex device, and square guide cone are arranged coaxially. To clearly illustrate the structure of the square guide cone and vortex device, Figure 2 The top panel and four side walls of the water tank are hidden inside.

[0017] Preferably, the swirling device is concealed beneath the four-sided guide cone, and the projected outlines of the four arc-shaped guide vanes in the horizontal plane do not exceed the projected outlines of the four-sided guide cone in the horizontal plane. The outer edges of the four arc-shaped guide vanes are vertically aligned with the four vertices of the base plate of the four-sided guide cone.

[0018] Preferably, the height H of the arc-shaped guide vane X The cross-sectional area of ​​the flow channel entering the outlet hole through the arc-shaped guide plate is not less than 0.5 times the radius of the outlet hole. This ensures that the cross-sectional area of ​​the flow channel is not less than the area of ​​the outlet hole, thus not affecting the flow rate of the outlet hole.

[0019] Preferably, the distance H from the apex of the four-sided guide cone to the inlet pipe opening is... Z The distance from the top of the four-sided guide cone to the inlet of the water pipe should not be greater than the diameter of the inlet pipe. If the distance is too large, it will reduce the flow speed of water to the four corners of the bottom plate of the tank. If the distance is too small, some water will flow directly from the bottom edge of the four-sided guide cone to the bottom plate, thus affecting the amount of water flowing to the four corners of the bottom plate of the tank.

[0020] All components in the self-flushing tap water storage tank of this utility model are made of stainless steel. The four-sided guide cone is composed of a square plate and four identical arc plates welded along the edge. The upper edge of the four arc guide plates is welded to the bottom of the four-sided guide cone, and the lower edge is welded to the bottom plate of the tank.

Claims

1. A self-flushing tap water storage tank, comprising a rectangular tank body with a square base plate, and a vertical water inlet pipe for supplying municipal tap water into the tank body is provided at the center of the top plate of the tank body, characterized in that: A water outlet is located at the center of the bottom plate of the tank. A vertical water supply pipe is connected below the water outlet. A vortex device is provided above the water outlet on the bottom plate of the tank to rotate the water around the water outlet and enter the water outlet. A guide cone is provided on the vortex device to guide the water output from the water inlet pipe to flow towards the four corners of the bottom plate of the tank. The guide cone is a square guide cone with a square base. The diagonal of the square is perpendicular to the edge of the bottom plate of the tank. The axis of the square guide cone coincides with the axis of the vertical water inlet pipe.

2. The self-flushing tap water storage tank according to claim 1, characterized in that: The quadrangular guide cone is composed of a square flat plate and four identical arc-shaped plates, and the arc-shaped plates are projected as isosceles right triangles on the horizontal plane.

3. The self-flushing tap water storage tank according to claim 1, characterized in that: The vortex device consists of four identical arc-shaped guide vanes arranged at 90-degree intervals with the center of the water outlet as the center, and the axis of the arc-shaped guide vanes is perpendicular to the bottom plate of the box.

4. The self-flushing tap water storage tank according to claim 3, characterized in that: The swirling device is hidden under the four-sided guide cone, and the projected outlines of the four arc-shaped guide vanes on the horizontal plane do not exceed the projected outlines of the four-sided guide cone on the horizontal plane.

5. The self-flushing tap water storage tank according to claim 4, characterized in that: The outer edges of the four arc-shaped guide vanes are vertically aligned with the four vertices of the bottom of the quadrangular guide cone.

6. The self-flushing tap water storage tank according to claim 5, characterized in that: The height of the arc-shaped guide vane shall not be less than 0.5 times the radius of the outlet hole.

7. The self-flushing tap water storage tank according to any one of claims 1 to 6, characterized in that: The distance from the apex of the four-sided guide cone to the inlet of the water inlet pipe shall not be greater than the diameter of the water inlet pipe.

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