CN201176603Y - No suction, no negative pressure intelligent water supply equipment - Google Patents

Abstract

The utility model discloses a non-suction and non-negative pressure intelligent water supply equipment, which comprises a flow compensator connected in series on the tap water pipeline, and a frequency conversion pump group pipeline and a water supply pipeline are connected in parallel between the flow compensator and the user pipeline through the water supply pipeline. The bypass pipeline, the frequency conversion pump unit is connected with the microcomputer frequency conversion control cabinet through the signal control line, the remote pressure sensor is installed on the water supply pipeline, the vacuum suppressor and liquid level controller are installed on the flow compensator, and the water supply pipeline is also installed There is a small-flow water storage device, a flow controller is installed on the small-flow water storage device, a liquid level controller, a remote pressure sensor and a flow controller are connected with a microcomputer frequency conversion control cabinet through a signal control line. The utility model can be directly connected to the tap water pipe network for pressurized water supply without causing the water pressure in the tap water pipe network to form a negative pressure, and after the peak water consumption in the constant pressure operation of the water supply equipment, the system water supply can reach constant pressure and It is not necessary to start the pump group when the user uses water with a small flow rate.

Description

No suction, no negative pressure intelligent water supply equipment

technical field

The utility model relates to an intelligent water supply device without suction and negative pressure.

Background technique

At present, the non-suction and non-negative pressure water supply equipment used by water supply users consists of a microcomputer frequency conversion control cabinet, a steady flow compensator (freewheeling accumulator), a vacuum suppressor, a municipal pipe network, a remote pressure gauge, a pump set, and a valve. and so on. When the equipment is running, the steady flow compensator and vacuum suppressor connected in series to the municipal pipe network provide the required water flow for the pump unit. The equipment itself has various protection functions such as shutdown without water and startup with water, and is a new product for secondary pressurized water supply. However, when the equipment is working, it is always in a state of constant pressure water supply. After the peak of water consumption, the pump unit has been working with frequency conversion, and the power saving effect is only about 20%, which is not ideal. How to ensure that the pressure of the water supply system remains constant when the user uses water, and how to ensure that the pump set is in a dormant state when the user uses water with a small flow rate, so as to idealize energy saving, has always been a difficult problem for users.

Contents of the invention

The technical problem to be solved by the utility model is to provide a non-suction and non-negative pressure intelligent water supply equipment that can be directly connected to the tap water pipe network for pressurized water supply. Constant pressure, and the user does not need to start the pump group when the user uses water with a small flow rate.

In order to solve the above technical problems, the utility model includes a flow compensator connected in series on the tap water pipeline. Between the flow compensator and the user pipeline, a frequency conversion pump group pipeline and a bypass pipeline are connected in parallel through the water supply pipeline. The signal control line is connected with the microcomputer frequency conversion control cabinet. Its structural characteristics are that a remote pressure sensor is installed on the water supply pipeline, a vacuum suppressor and a liquid level controller are installed on the flow compensator, and a small flow water storage is also installed on the water supply pipeline. A flow controller is installed on the small flow water storage, and the liquid level controller, the remote pressure sensor and the flow controller are connected with the microcomputer frequency conversion control cabinet through the signal control line.

As an improvement to the utility model, the pipelines of the variable frequency pump group are parallel double pipelines.

As a further improvement to the utility model, an anti-backflow controller is installed on the tap water pipeline and the water supply pipeline at the front end of the flow compensator.

After adopting the above structure, since the flow compensator is connected in series on the tap water pipeline, the frequency conversion pump group pipeline and the bypass pipeline are connected in parallel through the water supply pipeline between the flow compensator and the user pipeline, and there is also a water supply pipeline on the water supply pipeline. The small-flow water storage device controlled by the control cabinet, after the peak water consumption in the constant-pressure operation of the water supply equipment, the water supply of the system can reach a constant pressure, and the user does not need to start the pump group when the user uses a small flow of water, and the small-flow water storage device supplies water to the user , and when the user's water system needs a large flow of water supply, the microcomputer frequency conversion control system automatically wakes up the water supply equipment to start, and the frequency conversion pump unit is in the state of large flow and constant pressure water supply to ensure peak water supply and solve the problem of constant pressure water supply without negative pressure water supply equipment. The unsatisfactory problem of electric energy saving has been improved from about 20% to more than 80%. A bypass pipe is set to supply water to users from the original pressure in the water pipe network when the equipment is powered off.

Description of drawings

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

Figure 1 is a schematic diagram of the overall structure of the utility model.

Detailed ways

Referring to the accompanying drawings, the non-suction and non-negative pressure intelligent water supply equipment includes a flow compensator 2 connected in series on the tap water pipe. The anti-backflow controller 11 and the gate valve are connected in parallel between the flow compensator 2 and the user pipeline 12 through the water supply pipeline 10, and the frequency conversion pump set pipeline and the bypass pipeline are connected in parallel. When one group fails and stops, start another group to continue working, or two groups of variable frequency pumps work alternately. The frequency conversion pump unit 7 is connected to the microcomputer frequency conversion control cabinet 1 through the signal control line. The pipeline where the frequency conversion pump unit 7 is located is connected with a check valve and gate valve in series, and the pipeline where the bypass pipe is located is connected with a check valve 8 in series. A gate valve 6 and an anti-backflow controller 11 are connected in series to the water supply pipeline 10 at the rear end of the compensator 2 . The check valve is set to prevent the water in the user pipeline from flowing back after the pump stops, the gate valve is set to facilitate equipment and pipeline maintenance, and the bypass pipe is set to supply water to the user from the original pressure in the water pipe network when the equipment is powered off. A remote pressure sensor 3 is provided on the water supply pipeline 10, a vacuum suppressor 5 and a liquid level controller 4 are installed on the flow compensator 6, a sewage outlet 15 is provided at the bottom of the flow compensator 6, and a sewage outlet 15 is provided on the water supply pipeline 10. There is a small flow water storage device 13, and a flow controller 14 is installed on the small flow storage device 13. The liquid level controller 4, the remote pressure sensor 3 and the flow controller 14 are connected with the microcomputer frequency conversion control cabinet 1 through signal control lines. For the water supply equipment, the multivariable fuzzy control and intelligent management system is activated by the microcomputer frequency conversion control cabinet 1, and the constant pressure water supply signal (provided by the remote pressure gauge 3) after the peak water consumption is automatically switched to a small flow signal. Small flow water supply touch type water supply. When the user's water supply system reaches the set value (no flow), the frequency conversion pump set will automatically sleep according to the control command. At this time, the small-flow water storage device 13 releases the stored effective water volume to compensate the user's low-flow water when the water supply equipment is in a dormant state, and maintain constant pressure water supply throughout the water supply system. When the user's water system needs a large flow of water supply, the microcomputer frequency conversion control system automatically wakes up the water supply equipment to start, and the frequency conversion pump unit 7 is in the state of large flow and constant pressure water supply to ensure peak water consumption. This equipment solves the unsatisfactory problem of unsatisfactory power saving and energy saving when there is no negative pressure water supply equipment and constant pressure water supply, and the original power saving and energy saving is increased from about 20% to more than 80%.

Claims (3)

1, a kind of nothing is inhaled journey, no negative pressure intelligent water supply equipment, comprise the flow compensator (2) that is serially connected on the water supply pipe, between flow compensator (2) and user pipe (12), be parallel with variable frequency pump group pipeline and bypass line by water supply line (10), variable frequency pump group (7) is connected with computer transduce switch board (1) through signal control line, it is characterized in that on water supply line (10), being provided with teletransmission pressure sensor (3), vacuum suppresser (5) and fluid level controller (4) are installed on the flow compensator (2), also be provided with low discharge water receiver (13) on the water supply line (10), flow control valve (14) is installed, fluid level controller (4) on the low discharge water receiver (13), teletransmission pressure sensor (3) and flow control valve (14) are connected with computer transduce switch board (1) through signal control line.

2, nothing according to claim 1 is inhaled journey, no negative pressure intelligent water supply equipment, it is characterized in that described variable frequency pump group pipeline is the parallel two-tube road.

3, nothing according to claim 1 is inhaled journey, no negative pressure intelligent water supply equipment, it is characterized in that on the water supply pipe of flow compensator (2) front end and water supply line (10) anti counter-flowing controller (11) being installed.