CN201045199Y - Pipe network non-negative pressure superimposed pressurized water supply device - Google Patents

Abstract

The utility model discloses a pipe network non-negative pressure lamination supercharging water supply installation, comprising a tank and an electrical control cabinet, and is characterized in that a water inlet and a water outlet are arranged on the tank, the water inlet is connected with a tap-water pipeline, an atmospheric service pipe and a pressurized service pipe which are arranged in parallel are communicated with the water outlet and a main service pipe, a one-way valve is arranged on the atmospheric service pipe, the one-way valve and a water pump are arranged on the pressurized service pipe, a pressure sensor is arranged on the main service pipe, the pressure sensor and a level sensor are arranged on the tank, and the water pump, the pressure sensor, and the level sensor are electrically connected to the electrical control cabinet, a single-suction valve is arranged on the tank, an air inlet pipe is communicated with the atmosphere, and an escape pipe is communicated with the internal portion of the tank. The water supply installation with the above structure is adopted, the single-suction valve is opened when negative pressure is produced in the tank, the internal portion of the tank is communicated with the atmosphere, the water pump is pressurized to supply water, which cannot produce negative pressure to the pipe network, when the negative pressure is provided in the tank, the single-suction valve is closed, the water pump can be pressurized to supply water on the basis of the water pressure of the tap-water pipe, thereby lowering energy consumption.

Description

Pipe network non-negative pressure superimposed pressurized water supply device

technical field

The utility model relates to the technical field of water supply equipment, in particular to a pipe network non-negative pressure superimposed pressurized water supply device.

Background technique

At present, the water supply to high-rise buildings or the water supply to buildings in areas with unstable tap water pressure often cannot meet the requirements of users due to low water pressure or unstable water pressure. There are usually two ways to solve this problem. One is to directly connect the pressurizing device to the tap water pipe, but this method is likely to generate negative pressure on the tap water pipe network and affect other users on the pipe network; the other is to build water storage devices such as reservoirs or water tanks, and then use water pumps Pressurized water supply, this method cannot make full use of the water pressure of the water pipe network, wasting energy in vain, and most of the water storage devices are open containers, which are prone to secondary water pollution.

Utility model content

The technical problem to be solved by the utility model is to provide a water supply device that can make full use of the water pressure of the tap water pipe network without causing negative pressure to the pipe network in view of the shortcomings of the existing water supply device.

In order to solve the above technical problems, the utility model adopts the following technical scheme. The water supply device includes a tank body and an electric control cabinet. The tank body is provided with a water inlet and a water outlet. The pressurized water supply pipe is connected to the water outlet and the main water supply pipe; the normal pressure water supply pipe is provided with a one-way valve, the pressurized water supply pipe is provided with a one-way valve and a water pump, and the main water supply pipe is provided with a pressure sensor; The pressure sensor and liquid level sensor, water pump, pressure sensor and liquid level sensor are electrically connected with the electric control cabinet; the tank body is provided with a single suction valve, its air inlet pipe is connected with the atmosphere, and its air outlet pipe is connected with the inside of the tank body.

The pipe network with the above-mentioned structure has a non-negative pressure superimposed pressurized water supply device. Since the tank body is equipped with a single-suction valve, the single-suction valve opens when the inflow flow and water pressure cannot reach the water demand. The inside of the tank is connected to the atmosphere, and the water pump pressurized water supply will not cause negative pressure on the pipe network. When the water flow and water pressure meet the water demand, the single suction valve is closed, and the water pump can pressurize the water supply on the basis of the water pressure of the tap water pipe network, which can reduce energy consumption.

In order to prevent the air inlet of the single-suction valve from being blocked by dust and debris, the air inlet pipe passes through the tank and communicates with the atmosphere at the lower part of the tank.

Description of drawings

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail:

Accompanying drawing is the structural representation of the utility model.

Detailed ways

As shown in the drawings, the water supply device consists of a tank body 1 and an electric control cabinet 2. The tank body 1 is provided with a water inlet 3 and a water outlet 5. The water inlet 3 is connected to the tap water pipeline 4. The normal pressure water supply pipe 6 and the The pressurized water supply pipe 7 communicates with the water outlet 5 and the main water supply pipe 8; There is a pressure sensor 11; the tank body 1 is provided with a pressure sensor 11 and a liquid level sensor 12, and the water pump 10, the pressure sensor 11 and the liquid level sensor 12 are electrically connected to the electric control cabinet 2 through a wire 16; the tank body 1 is provided with a single suction Valve 13, its inlet pipe has 14 to pass tank body 1 and communicate with atmosphere at its bottom, and its air outlet pipe 15 communicates with tank body 1 inside.

When the water flow and water pressure of the above-mentioned water supply device reach the set value, the water pump does not work or the water pump fails to work when the power is off, the water can enter the normal pressure water supply pipe 6 through the water outlet 5 and open the one-way valve 9 to enter the main water supply pipe 8 , in order to realize water supply to users. When the water flow and water pressure do not reach the set value, the pressure sensor 11 on the tank body 1 sends a signal to the electric control cabinet 2, and the electric control cabinet 2 starts the water pump 10 to realize water supply. When negative pressure is generated in the tank body 1, the single suction valve 13 is automatically opened to communicate the inside of the tank body 1 with the atmosphere, avoiding negative pressure on the tap water network, and at the same time, the water stored in the tank body 1 supplements the insufficient water intake. When the liquid level in the tank 1 drops to the set low level, the liquid level sensor 12 sends a signal to stop the water pump to avoid damage to the water pump due to lack of water. When the water level in the tank 1 returns to the high water level, the liquid level sensor 12 sends out a signal. The signal starts the pump operation and restores the water supply. The pressure sensor 11 on the main water supply pipe 8 can detect the water pressure and send a signal to the frequency converter to control the speed of the water pump, which can make more rational use of energy.

Claims (2)

1. A pipe network non-negative pressure superimposed pressurized water supply device, comprising a tank body (1) and an electric control cabinet (2), the tank body (1) is provided with a water inlet (3) and a water outlet (5), The water inlet (3) is connected with the tap water pipe (4), and the normal pressure water supply pipe (6) and the pressurized water supply pipe (7) arranged side by side are connected to the water outlet (5) and the main water supply pipe (8); the normal pressure water supply pipe ( 6) is provided with a one-way valve (9), the pressurized water supply pipe (7) is provided with a one-way valve (9) and a water pump (10), and the main water supply pipe (8) is provided with a pressure sensor (11); The body (1) is provided with a pressure sensor (11) and a liquid level sensor (12), and the water pump (10), the pressure sensor (11) and the liquid level sensor (12) are electrically connected to the electric control cabinet (2); it is characterized in that The tank body (1) is provided with a single suction valve (13), its air inlet pipe has (14) to communicate with the atmosphere, and its air outlet pipe (15) communicates with the inside of the tank body (1). 2. The pipe network non-negative pressure superimposed pressurized water supply device according to claim 1, characterized in that: the air inlet pipe (14) passes through the tank body (1) and communicates with the atmosphere at the lower part of the tank body (1).

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