CN201416183Y - Equalized water supply without negative pressure equipment - Google Patents

Abstract

The utility model provides a non-negative-pressure water supply device capable of supplying water with equal pressure to each layer of a building. Its main function is to solve the problem that the water flow in the high area is too high because the bottom pressure is greater than the demand pressure during the peak water consumption period, so that there is no water available in the high area. It is composed of control cabinet, water pump, butterfly valve, check valve, bypass pipe, steady flow compensator, constant pressure valve and pressure sensor. After the tap water enters the steady flow compensator through the pipeline, it is pressurized and supplied by the water pump; since the constant pressure valve presets the same pressure value, it can ensure the equal pressure water supply of each layer. When the tap water stops, the vacuum compensator starts, and the control cabinet controls the water pump Stop working and avoid the generation of negative pressure.

Description

Equalized water supply without negative pressure equipment

technical field

The utility model relates to a water supply device, in particular to a non-negative pressure device capable of realizing equal pressure water supply for each layer of a building.

current technology

At present, in many cases, the inflow of tap water cannot fully meet the production and domestic water requirements during the peak water consumption period, especially high-rise users will frequently cut off water during the peak water consumption period. This phenomenon is more obvious in non-divided water supply systems. However, a large part of the reason for this phenomenon is that the actual water flow per unit time is greater than the demanded flow due to the high water pressure in the low area, which causes waste of water resources and leaves no water available for users in the high area. In this case, the usual solution is to supply water in multi-system zones with partial pressure or single-system zone water supply and set a pressure reducing valve in the low zone. However, neither of these two methods can really solve the above problems. The interlayer pressure difference in each district still exists, and the use of multi-system district water supply will increase investment and increase operating costs.

Contents of the invention

Aiming at the technical problems in the prior art, the utility model provides a non-negative pressure device capable of supplying water with equal pressure to each layer of the building.

The main purpose of the pressure-equalizing non-negative pressure water supply equipment is to solve the problem that the water flow is too large because the bottom pressure is greater than the demand pressure during the peak water consumption period, so that there is no water available in the high area.

The purpose of this utility model is achieved in that it includes a control cabinet, a water pump, a butterfly valve, a check valve, a bypass pipe, a steady flow compensator, a constant pressure valve, and a pressure sensor. The water inlet on the steady flow compensator is connected to the municipal pipe network, the water outlet is connected to the water inlet pipe of the equipment, the water inlet pipe is connected to the water inlet of the pump, the water outlet of the water pump is connected to the water outlet pipe of the equipment through a butterfly valve, a check valve, the water outlet pipe and A pressure sensor is installed on the highest water pipe. In addition, a constant pressure valve is installed at the beginning of each branch pipe.

In the working state, the constant pressure valve sets a reasonable pressure value. During the low peak period of water consumption, the device can control the water pump to pressurize the tap water to supply water according to the pressure feedback from the highest level. When the water inlet pressure meets the needs, the tap water can be supplied through the bypass pipe. According to the pressure provided by the water outlet main pipe and the pressure sensor at the highest level, the control cabinet controls the speed of the water pump and the number of worktables respectively to achieve overpressure control and stable pressure equalization water supply. When the tap water flow increases and approaches the water output of the equipment, the vacuum compensator starts to work to avoid negative pressure. Under the action of the constant pressure valve, the water facilities in the low area are always under an economic pressure, thereby avoiding unnecessary waste of water resources and using the saved water for the high-level.

Due to the adoption of the above scheme, it is possible to avoid the waste of high-pressure water in the low area during the peak period of water consumption, resulting in no water in the high area, and maximize the use of tap water with limited flow to achieve the effect of continuous water in each layer.

Description of drawings

Accompanying drawing is the structural representation of an embodiment of the utility model.

Detailed ways

The steady flow compensator (14) is connected to the municipal pipe network through the pipeline (11), the vacuum suppressor (16) is installed on the top, the water outlet of the lower part is connected to the main water inlet pipe (17) of the equipment, and the water inlet of the water pump (23) is connected to the water inlet through the butterfly valve (4). The water inlet of the water pump (23), the water outlet of the water pump (23) is connected to the water main pipe (5) through the check valve (22) and the butterfly valve (21), and the bypass pipe (15) is passed through the butterfly valve (6), the check valve (7 ) to connect the water inlet main pipe (1) 7 and the water outlet main pipe (5), the pressure sensor (8) is installed on the water outlet main pipe (5), the pressure sensor (13) is installed on the highest water supply branch pipe, and a constant pressure sensor is installed at the beginning of each branch pipe. Pressure valve. Vacuum suppressor (16), pressure sensor (8), pressure sensor (13) and water pump (23) are connected to control cabinet (29).

Its working method is: after the tap water enters the steady flow compensator (14) through the pipeline (11), it is pressurized by the water pump (23) to supply water; since the constant pressure valve (12) presets the same pressure value, it can ensure the equal pressure of each layer Water supply, when running water cuts off, vacuum compensator (16) starts working, has avoided the generation of negative pressure, and control cabinet (29) controls water pump (23) to stop working.

Claims (2)

1. A pressure equalizing water supply without negative pressure equipment, which is mainly composed of a steady flow compensator (14), a vacuum compensator (16), a control cabinet (9), a water pump (23) and a constant pressure valve (12). It is characterized in that: the water outlet at the lower part of the steady flow compensator (14) is connected to the main water inlet pipe (17), and a vacuum suppressor (16) is installed on the top. 2. The equal pressure water supply without negative pressure equipment according to claim 1, characterized in that: a constant pressure valve (12) is installed in the branch pipe between the water supply layers.

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