JPH0577593U - Water distribution equipment in water supply - Google Patents

Abstract

(57) [Abstract] [Purpose] We propose a device that can be used as a supply path for tap water to a building or the like and that can easily increase the water pressure in the supply path. [Composition] A pressurizing pump having a single blade whose blade extends spirally in the axial direction is provided in the middle of the tap water supply path. The water pressure in the supply channel can be easily increased, and this can be compensated for when water pressure is insufficient in long-distance water supply or high-rise buildings. Therefore, it is possible to eliminate a water storage tank conventionally installed on the roof of a building or the like, or a multi-stage pump installed under the building or the like.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to improvement of a water supply system or a water distribution system for a building.

[0002]

[Prior Art]

 For example, for water distribution in a building, a tank is installed on the rooftop and the natural water head distributes water to the inside of the building. In addition, in the water distribution of the building, a multistage pump with a high head is installed in the basement etc. to distribute water.

[0003]

[Problems to be solved by the device]

 However, in the case of installing the tank on the rooftop, etc., the water must be pumped into the tank, and in particular, there is little flow of water in the tank, so there is a problem of contamination of the tank and accompanying water contamination. . In addition, the multi-stage pump is complicated in structure and expensive to manufacture and install.

[0004]

[Means for Solving the Problems]

 This invention can solve the above problems, and its gist is to install a pressure pump in a reservoir or in the middle of a water pipe whose one end is connected to the main water supply pipe. The blade of the pressure pump is a spiral single blade extending in the direction of the axis of rotation. A plurality of spiral single blades may be used depending on the water supply amount and the like. In that case, the phase may be evenly shifted in the circumferential direction of the rotating shaft.

[0005]

[Action]

 Since the water distribution device according to the present invention is configured as described above, for example, when water is sent to a high floor of a building, a pressure pump is installed in the water supply line to increase the water supply pressure. be able to. Therefore, for example, when sending water to each floor of a building, installing this pressurizing pump in the intake pipe of the building can increase the pressure of water received, and obtain high-pressure water even on high floors. be able to. If the pipe is installed far away from the reservoir and the pressure drops, the pressure can be easily increased. In this case, the number of blades of the pressurizing pump to be installed may be one in the case of a small diameter water pipe, and may be multiple in the case of a large diameter water pipe in consideration of the volume efficiency with respect to the total amount of water. do it. The pressure that can be increased in this case is 1 to 3 kg / cm2, depending on the shape of the blade. The present invention will be specifically described below with reference to the drawings.

[0006]

【Example】

 FIG. 1 is a vertical cross-sectional view of a pressurizing pump connected to a water supply line. In the figure, reference numeral 1 is a discharge casing, 2 is a pumping pipe, 3 and 4 are discharge balls, 5 is a suction cover, and 6 is a suction cover. An impeller, 7 is a motor, 8 is a distribution line to the motor 7, 9 is a water pipe connected to the suction side of the pressurizing pump, and 10 is a water pipe also connected to the discharge side.

Next, the structure of the blades of the impeller 6 will be described with reference to FIGS. 1 to 4. In the mixed flow pump or the like, the blade 6 is a spiral single blade obtained by adding centrifugal blades, which are divided and arranged in the boss portion, in the direction of the rotation axis. 2 is a front view thereof, and FIG. 3 is a development view thereof. By adding several centrifugal blades in this way, the pressurizing ability is several times as high as that of several centrifugal blades arranged in the circumferential direction. In the illustrated case, the blade 6 is formed in a conical shape as a whole along the suction cover 5, and the boss portion thereof is also a conical shape. Further, FIG. 4 shows two spiral single blades 6 constructed as described above, which are combined 180 degrees out of phase with each other. Increase and use the number of.

The device according to the present invention is configured as described above, and by driving the pressurizing pump, the water in the water supply pipe 9 is pressurized by the blades 6 and discharged to the water supply pipe 10. That is, the head is given only by the amount of pressure, so if this pressurizing pump is installed in the intake pipe of a building, for example, the water sent to the low head will reach the height of the building. Water can be sent. In addition, when this pressurizing pump is used for long-distance water supply pipelines, head loss due to long-distance water supply can be compensated.

[0009]

[Effect of the device]

 As described above, according to the device of the present invention, it is possible to easily compensate for the lack of pressure in the water supply pipe. Particularly, in the present invention, the pressurizing pump has its blades extending in the direction of the axis of rotation. Since it is a line pump, it can be installed simply by adding it to the water pipe, and no special pump installation room is required. In addition, when it is used for water distribution in buildings, tanks on the roof and multi-stage pumps in the basement are no longer required, and the profits obtained in practice are enormous.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a pressure pump according to the present invention.

FIG. 2 is a front view of blades of a pressure pump.

FIG. 3 is a development view of blades of a pressure pump.

FIG. 4 is a perspective view of another embodiment of the blade.

[Explanation of symbols]

 6 blades 9 water pipe on the suction side 10 water pipe on the discharge side

Claims (2)

[Scope of utility model registration request] 1. A spiral shape in which a pressurizing pump is installed in the middle of a water pipe line 9, 10 of which one end is connected to a reservoir or a main water supply pipe, and the blades 6 of the pressurizing pump extend in the direction of the axis of rotation. A water distribution device for water supply, which is characterized by a single blade. 2. A water distribution device for water supply, wherein a plurality of single blades according to claim 1 are provided with the phases thereof evenly shifted in the circumferential direction.