JPS60102437A - Speed reducing water supply and drain apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a deceleration water supply and drainage device, and more specifically, to a deceleration water supply and drainage device that is installed at an inlet of a filter medium storage chamber of a filtration device that filters and purifies tap water, or at a drain outlet of a swimming pool or the like. .

For example, water used for water supply, hot water supply, etc., and city tap water used for swimming pools, etc., is treated by adding chlorine to sterilize it.

Chlorinated water causes various undesirable factors, such as the presence of chlorine, which interacts with other chemicals contained in the water to form carcinogens. Therefore, it is desirable to provide a filtration device that adsorbs and removes residual chlorine and other harmful substances contained in tap water.

Conventionally, this type of filtration device has a cylindrical filter medium storage chamber, that is, a filter medium cartridge, in which an inlet for water to be filtered is provided in the upper lid, and a chamber for adsorbing and removing residual chlorine and other harmful substances. As filter media, activated carbon or other adsorption filter media, filter media deposited with silver to sterilize Escherichia coli and other bacteria that rapidly grow by adsorbing and removing chlorine added for sterilization with silver ions, and calcium A filtration container filled with each layer of filter material that elutes ions and neutralizes the water to an appropriate pH of 7.3 is connected to a water faucet and tap water is passed through this filtration container. There is a filtration device to purify the water. When tap water is filtered by passing through a filter layer filled with the filter medium.

It is a well-known principle both physically and chemically that the slower the flow rate and the longer the raw water is in contact with each filter medium to wash the surface of each filter medium, the stronger the water purification effect will be. However, according to the inlet device used in the conventional filtration device of this kind, since the chlorine flows into the filter medium layer in a direct current state, there is a possibility that the chlorine cannot be sufficiently adsorbed and removed or the PH effect cannot be achieved.

Regarding this, for example, even in the inlet device 40 used in the conventional filtration device of this type shown in FIG. 1, a sufficient filtration effect is not achieved. First, an outline will be explained.

As shown in FIG. 1, the conventional inlet device 40 includes a ring-shaped inlet frame 32 provided with a fitting groove 31 that is fixed to the inlet part of the filter cartridge C2, and a plurality of ring-shaped inlet frames 32 at the bottom of the inlet frame 32. This structure consists of a water passage plate 33 provided with water passage holes 14 and fixed integrally with an inlet frame 32. Since the conventional inlet device 40 has the above-mentioned configuration, the case C of the filter body
1 and the water that passed through the gap between the filter media cartridge C2,
As shown by the streamlines, it flows in a direct current form from the inlet 22 of the inlet device 40 into the filter medium layer of the cartridge.

Therefore, especially when the water faucet is fully opened, the flow rate will naturally increase, and the tap water to be filtered will flow directly into the cartridge from the inlet device 40 in the form of a direct current, so that the water inside the filtration layer will not flow. , a high-speed passage mainstream water on the vertical axis is formed and the water passes through the filtration layer all at once, so when the passing water is measured with an orthotridine reagent that measures residual chlorine or a PH measurement reagent such as BTB, chlorine is detected. However, there are disadvantages such as a high residual level of alkaline components and a low elution level of alkaline components. On the other hand, the drains of swimming pools and the like have the same structure as the inlet device 30 shown in FIG. It is a well-known fact that many children died after being sucked into drains.

In consideration of the above-mentioned problems, an object of the present invention is to provide a deceleration water supply and drainage system that is compact, highly efficient, can be easily attached to and removed from an inlet or a drain, and that moderately suppresses fluid pressure and flow velocity. The goal is to provide equipment. Another object of the invention is to provide a deceleration water supply and drainage device that has a simple structure and can be manufactured at low cost.

A preferred embodiment of the deceleration water supply and drainage system of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the deceleration water supply and drainage device 10 of the present invention includes an expansion chamber 12 and a lid member 19. This device 1
0 has a simple construction and can be made of plastic or other suitable material.

A large number of water holes 14 are provided in the peripheral wall 13 of the expansion chamber 12 . Further, the bottom 16 of the expansion chamber 12 is formed to protrude inside the expansion chamber 12, and preferably has a conical protrusion 17, for example, and the bottom 16 has no openings. A lid member 19 is fixed to the upper part of the expansion chamber 12. For this purpose, in the embodiment shown in the drawings, the expansion chamber 12 and the lid member 19 are
and are fixed with screws 20 or flanges. The lid member 19 is provided with an inlet 22 having a diameter smaller than the diameter of the expansion chamber 12, and in order to attach the deceleration water supply and drainage device 10 to the inlet 22 and secure it to the opening of the filter medium cartridge C2, A ring nut 23 or a flange is provided, and the filter is fixed to the opening of the filter cartridge C2 with a packing 24 interposed therebetween.

Since the deceleration water supply and drainage device 10 of the present invention is configured as described above, the water to be filtered flows through the gap between the filtration device main body case C1 and the filter medium cartridge C2 in the direction indicated by the streamline, and passes through the inlet port. 2
2 into the large diameter expansion chamber 12. When fluid flows from a narrow pipe to a thick pipe, the flow and pressure decrease, as evidenced by the principle of automobile exhaust mufflers, or the "continuity principle" of fluid mechanics. Therefore, the water that has flowed into the expansion chamber 12 and has been decelerated further impacts the slope of the conical protrusion 17 on the bottom portion 16 and is reflected, and is ejected laterally from the water passage hole 14 provided in the peripheral wall 13 of the expansion chamber 12. The water is dispersed evenly over the filter layer and passes through the filter layer evenly at an appropriate flow rate. Therefore, even when the water faucet is fully opened, the water passes through each layer of the filter medium as if washing it, so when the water that passes through is measured with the above-mentioned measuring reagent, the neutralized water quality is approximately PH 7.3, as claimed. In addition, a preferable water purification effect with residual chlorine removal rate of 0.1 PPM or less can be obtained.

Furthermore, when the deceleration water supply and drainage device of the present invention is installed at the drain of a swimming pool, etc., it will moderate the speed of drainage, thereby suppressing the strong suction force caused by the vortex generated at the drain, thereby preventing human loss. There are favorable benefits.

In addition, the deceleration water supply and drainage device of the present invention can be used not only as a device in the above embodiments but also as a large filtration device, a water receiving tank in a building, a water outlet of a water supply pipe such as an elevated water tank, other large aquarium tanks, and fish cultivation. Its range of applications is wide-ranging, as it can also be used for water supply and drainage outlets for ponds, etc.

Although specific embodiments of the deceleration water supply and drainage system 10 of the present invention have been described above, the design can be variously modified depending on the contents described so far and the constituent elements described in the claims.

[Brief explanation of drawings]

Figure 1 is a sectional view of the conventional example. FIG. 2 is an elevational sectional view showing an embodiment of the invention. Figure 1: 40... Inlet device 32...Introduction slot frame Figure 2: 10... Reduction water supply and drainage equipment 12... Expansion chamber 13... Peripheral wall 14...Water hole 17...Conical convexity 22...Introduction port Patent applicant: Shinichi Kanno

Claims (1)

[Claims] In filter media storage chambers such as filtration devices that purify tap water,
The purpose is to reduce the flow rate at which the water to be filtered passes through the filter media layer and to increase the water purification effect by keeping the time in contact with each filter media surface longer. A deceleration water supply and drainage device that suppresses the flow rate of drainage water in order to reduce the dangerous suction force at the drainage port of a pool, etc. consists of a lid member equipped with an inlet for water to be supplied or drained, and an expansion chamber, The part that reduces the flow velocity of the lid member is an expansion chamber having a larger diameter than the inlet of the lid member, a peripheral wall of the expansion chamber is provided with a large number of water passage holes, and a protrusion that bulges inward at the bottom of the expansion chamber. 1. A deceleration water supply and drainage device comprising: a fluid deflecting portion provided with a fluid deflection portion, and wherein the lid member and the expansion chamber are integrally fixed.