CN201276720Y - Full-enclosed variable frequency non-negative pressure water supply device - Google Patents

Abstract

The utility model discloses a fully-sealed frequency conversion non-negative pressure water supply device, which comprises a flow buffer tank, the water inlet pipe of the flow buffer tank is connected with a tap water pipe, and the water outlet pipe of the flow buffer tank is connected with a user's water pipe through a water supply pipeline of a water pump. A partition is set in the flow buffer tank to divide it into a water storage chamber and an energy storage chamber, and a pressure control valve connecting the water storage chamber and the energy storage chamber is arranged on the partition, and the outlet pipe is installed at the bottom of the water storage chamber , there is an energy storage water pipe between the energy storage chamber and the user water pipe, an intelligent pressure regulator is installed on the energy storage water pipe, a remote pressure sensor is connected in series on the user water pipe, the remote pressure sensor and the pressure regulation controller are connected with the electric control box connect. The utility model can continuously supply water to users, and makes up for the shortcomings of the prior art that the water pump is frequently started and stopped, and the water supply pressure fluctuates from high to low.

Description

Fully enclosed frequency conversion non-negative pressure water supply equipment

technical field

The utility model relates to the field of water supply equipment, in particular to a fully enclosed frequency conversion non-negative pressure water supply equipment used in tap water pipeline systems.

Background technique

At present, water tanks and frequency conversion pumps are mostly used for water supply in urban high-rise buildings. This water supply method has the disadvantages of wasting energy and occupying a large area. The non-negative pressure water supply equipment currently used in the market is directly connected to the tap water pipeline, and the flow buffer tank with the exhaust valve and the frequency conversion pump are used to supply water to the user. When this equipment is working, it will have a certain impact on the water inlet pressure of the tap water pipe. , and the frequent start and stop of the water pump will cause the instability of water pressure and affect the water demand of users.

Utility model content

The technical problem to be solved by the utility model is to provide a fully enclosed frequency conversion non-negative pressure water supply device that can ensure stable pressure at the user end.

In order to solve the above technical problems, the fully enclosed frequency conversion non-negative pressure water supply equipment provided includes a flow buffer tank. Its structural features are: the flow buffer tank is provided with a partition to divide it into a water storage chamber and an energy storage chamber, and a pressure control valve connecting the water storage chamber and the energy storage chamber is arranged on the partition. The water pipe mouth is installed at the bottom of the water storage chamber. An energy storage water pipe is provided between the energy storage chamber and the user water pipe. An intelligent pressure regulator is installed on the energy storage water pipe. A remote pressure sensor is installed on the user water pipe. Both the sensor and the intelligent pressure regulator are electrically connected with the electric control box.

After adopting the above structure, the partition in the flow buffer tank divides it into two parts, the water storage chamber and the energy storage chamber. The partition board is provided with a pressure control valve connecting the water storage chamber and the energy storage chamber. On the water chamber, an energy storage water pipe is provided between the energy storage chamber and the user water pipe, and an intelligent pressure regulator is provided on the energy storage water pipe. When the water supply is normal, the pressure control valve is closed, and a certain pressure of water is added to the energy storage chamber through the energy storage water pipe. When the energy storage chamber reaches a certain pressure, the electric control box closes the intelligent pressure regulator, and the energy storage water pipe is closed at this time. state; when the pressure on the user's water pipe is too low, the pressure in the water storage chamber will also decrease accordingly, and the pressure control valve on the partition will automatically open to replenish water from the energy storage chamber to the water storage chamber to meet the pressure demand and thus protect the The original pressure of the pipe network is reduced; the utility model can continuously supply water to users, which makes up for the shortcomings of the prior art that the water pump frequently starts and stops, and the water supply pressure fluctuates.

The water pump water supply pipe set includes two sets of water pumps connected in parallel and check valves connected in series with the water pumps. There is also a bypass branch connected in parallel with the water pumps, and a check valve is arranged on the bypass branch road.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further introduced:

Fig. 1 is the schematic diagram of the utility model.

Detailed ways

The fully enclosed frequency conversion non-negative pressure water supply equipment shown in Figure 1 includes a flow buffer tank 3, the water inlet 4 of the flow buffer tank 3 is connected to the tap water pipe 1, and the flow buffer tank 3 is provided with a partition 10 to divide it into The water storage chamber 11 and the energy storage chamber 12, the water storage chamber 11 and the energy storage chamber 12 are two airtight chambers, the partition plate 10 is provided with a pressure control valve 9 communicating with the water storage chamber 11 and the energy storage chamber 12, the storage The bottom of the water chamber 11 is provided with a water outlet 5 to connect with the user water pipe 2, a pressure sensor 6 and a vacuum detector 15 are installed on the water storage chamber 11, and the water pipe between the water outlet 5 of the water storage chamber 11 and the user water pipe 2 The water pump water supply pipe group is provided on the water pump water supply pipe group, and the water pump water supply pipe group includes two sets of water pumps 7 and check valves connected in parallel. There is also a bypass branch 17 connected in parallel with the water pump 7. The bypass branch 17 is provided with a check valve. When the pressure of the tap water pipe 1 can meet the needs of the user, it can directly supply water to the user through the bypass branch 17 . An energy storage water pipe 13 is provided between the energy storage chamber 12 and the user water pipe 2, an intelligent pressure regulator 14 is provided on the energy storage water pipe 13, a remote pressure sensor 8 is connected in series on the user water pipe 2, the remote pressure sensor 8, the pressure sensor 6. Both the vacuum detector 15 and the intelligent pressure regulator 14 are electrically connected to the electric control box 10 .

Claims (2)

1, a kind of totally-enclosed frequency conversion non-negative pressure water-supply installation, comprise flow surge tank (3), the water inlet pipe mouth (4) of flow surge tank (3) is connected with running water pipe (1), the effluent pipe mouth (5) of flow surge tank (3) is connected with service pipe (2) by water pump feed pipe group, it is characterized in that: be provided with dividing plate (10) in the described flow surge tank (3) it is divided into water storage cavity (11) and energy-storing chamber (12), dividing plate (10) is provided with the pressure-control valve (9) that is communicated with water storage cavity (11) and energy-storing chamber (12), described effluent pipe mouth (5) is installed in the bottom of water storage cavity (11), be provided with energy storage water pipe (13) between described energy-storing chamber (12) and the service pipe (2), energy storage water pipe (13) is provided with intelligent pressure adjuster (14), distal pressure sensor (8) is installed on the service pipe (2), and distal pressure sensor (8) and intelligent pressure adjuster (14) all are electrically connected with electric control box (16).

2, totally-enclosed frequency conversion non-negative pressure water-supply installation according to claim 1, it is characterized in that: described water pump feed pipe group comprises two groups of water pumps (7) in parallel and the flap valve that is connected in series with water pump (7), the in addition bypass branch road (17) in parallel with described water pump (7), bypass branch road (17) is provided with flap valve.

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