CN202248086U - Frequency-conversion water supply control system - Google Patents

Abstract

The utility model provides a frequency conversion water supply control system, which includes a water inlet pipeline, a steady flow balancer connected to one end of the water inlet pipeline, a water pump group, a water outlet pipeline, and an intelligent frequency conversion control system; the water pump One end of the set is connected to the steady flow balancer, and the other end is connected to one end of the water outlet pipeline; the steady flow balancer is provided with a pressure sensor, and the pressure sensor is electrically connected to the intelligent frequency conversion control system; the water outlet pipeline The other end is used to connect to the user's water intake pipe network. There is a pressure sensor and a flow meter on it. The pressure sensor and the flow meter are electrically connected to the intelligent control system respectively. The flow meter is arranged between the pressure sensor and the user's water intake pipe. between the network connection ends; the intelligent frequency conversion control system is electrically connected to the water pump set. The utility model automatically selects a water pump with a suitable flow rate to avoid waste of electric energy; real-time automatic pressure supplement ensures water pressure balance; automatic voltage stabilization ensures stable water supply when the frequency converter fails.

Description

Frequency conversion water supply control system

technical field

The utility model relates to a water supply system, in particular to a frequency conversion water supply control system.

Background technique

At present, there are mainly two ways of frequency conversion water supply, one is to pump water from the pool (water tank), and supply water to users with frequency conversion and constant pressure. The other is the non-negative pressure water supply method, that is, there is no pool (water tank), and a steady flow tank is used, combined with non-negative pressure technology, to supply water to users with frequency conversion and constant pressure.

However, both water supply methods have very obvious disadvantages. Compared with the original water supply method without frequency conversion, the power consumption is too much; the water pressure fluctuates greatly. The response of the pressure sensor in the pump room cannot reflect the fluctuation of the water pressure; another big disadvantage is that once the frequency converter in the frequency conversion control cabinet of the two water supply methods fails, the water supply will be extremely unstable. Water supply with no water pressure or super high water pressure.

Utility model content

The purpose of the utility model is to provide a frequency conversion water supply control system, which consumes less power during water supply and has less water pressure fluctuation.

Another object of the present utility model is to provide a frequency conversion water supply control system, which can provide stable water supply even when the frequency converter fails.

In order to achieve the above purpose, the utility model provides a frequency conversion water supply control system, which includes: a water inlet pipeline, a steady flow balancer connected to one end of the water inlet pipeline, a water pump group, a water outlet pipeline, and an intelligent frequency conversion Control System;

One end of the water pump group is connected to the steady flow balancer, and the other end is connected to one end of the water outlet pipeline;

The steady flow balancer is provided with a pressure sensor, and the pressure sensor is electrically connected to the intelligent frequency conversion control system;

The other end of the water outlet pipeline is used to connect to the user's water intake pipe network, and a pressure sensor and a flow meter are arranged on it. The pressure sensor and the flow meter are respectively electrically connected to the intelligent control system. The flow meter is set at the pressure Between the sensor and the connection end of the user's water intake pipe network;

The intelligent frequency conversion control system is electrically connected to the water pump set.

The other end of the water inlet pipeline is used to connect to water storage equipment or a municipal water supply network.

The water pump set includes several first pipelines and second pipelines arranged in parallel, each first pipeline is provided with a water pump, and all the water pumps in the first pipeline have different flow rates respectively.

An electric fine-tuning valve is also provided, one end of the electric fine-tuning valve is connected to the balance stabilizer, and the other end is connected to the water outlet pipeline, and the electric fine-tuning valve is electrically connected to the intelligent frequency conversion control system.

An air pressure accumulator is also arranged on the water outlet pipeline, and the air pressure accumulator is located at the other end of the water outlet pipeline.

The flowmeter is a flowmeter with an output of 4-20MA.

Beneficial effects of the utility model: the frequency conversion water supply control system provided by the utility model can automatically select a water pump with a suitable flow rate to avoid the waste of electric energy; stable water supply.

In order to further understand the features and technical contents of the present utility model, please refer to the following detailed description and accompanying drawings of the present utility model. However, the accompanying drawings are for reference and illustration only, and are not intended to limit the present utility model.

Description of drawings

The technical solution and other beneficial effects of the utility model will be apparent through the detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings.

In the attached picture,

Fig. 1 is a structural schematic diagram of the utility model frequency conversion water supply control system.

Fig. 2 is a structural schematic diagram of the water pump group of the frequency conversion water supply control system of the present invention.

Detailed ways

In order to further illustrate the technical means adopted by the utility model and its effects, a detailed description will be given below in conjunction with preferred embodiments of the utility model and accompanying drawings.

As shown in Figure 1, the utility model provides a frequency conversion water supply control system, which includes: a water inlet pipeline 1, a steady flow balancer 2 connected to one end of the water inlet pipeline 1, a water pump group 3, the water pump group 3 One end is connected to the steady flow balancer 2 , a water outlet pipeline 4 , and one end of the water outlet pipeline 4 is connected to the other end of the water pump unit 3 and an intelligent frequency conversion control system 5 .

The other end of the water inlet pipeline 1 is used to connect to water storage equipment (not shown) such as pools, water tanks or directly connected to a municipal water supply network (not shown), and tap water flows into the steady flow balancer 2 through the water inlet pipeline.

The steady flow balancer 2 is used to eliminate the negative pressure in the pipeline network, and a pressure sensor 25 is arranged on its top, and the pressure sensor 25 is electrically connected to the intelligent frequency conversion control system 5, and the pressure in the steady flow balancer 2 Real-time transmission to the intelligent frequency conversion control system 5.

Please refer to Fig. 2, this water pump group 3, it is respectively provided with the first pipeline 31,32,33 of three large flow water pumps 311, power frequency water pump 312, small flow water pump 313 and the second pipeline of a water pump ( Connecting pipes) 34 are connected in parallel, and these pipelines have two common ends, which are respectively connected to the steady flow balancer 2 and the water outlet pipeline 4, and the tap water in the steady flow balancer 2 is delivered to the water outlet pipeline 4.

The other end of the water outlet pipeline 4 is used to connect to the user's water intake pipe network (not shown), and a pressure sensor 45 and a flow meter 46 are arranged on it. The flow meter 45 is a flow meter that can output 4-20MA. 45 and the flowmeter 46 are electrically connected with the intelligent control system 5 respectively, and the pressure and flow in the water outlet pipeline 4 are transmitted to the intelligent frequency conversion control system in real time. between network connections.

The intelligent frequency conversion control 5 system is also electrically connected to the water pump group 3, and the intelligent frequency conversion control system 5 performs calculations based on the data fed back by the pressure sensor 25, the pressure sensor 45 and the flow meter 46, thereby outputting an appropriate frequency for the water pump group 3 Perform frequency conversion control, turn on the large flow water pump 311 when the flow is large, turn on the small flow water pump 313 when the flow is small, and turn off all the water pumps when the flow is very small, so as to achieve the purpose of energy saving.

The utility model provides a frequency conversion water supply control system, which also includes a pneumatic accumulator 6, the pneumatic accumulator 6 is set on the water outlet pipeline 4, and placed between the flow meter 46 and the connection end of the household water pipe network , when different users use water in the user water intake pipe network, the air pressure accumulator 6 maintains the pressure in the pipe network through its own automatic air supply device, thereby ensuring the water pressure balance of each water intake point.

The utility model provides a frequency conversion water supply control system, which also includes an electric fine-tuning valve 7, the electric fine-tuning valve 7 is respectively connected to the steady flow balancer 2 and the water outlet pipeline 4, and is electrically connected to the intelligent frequency conversion control system , when the frequency converter (not shown) in the intelligent frequency conversion system 5 has an unrecoverable fault, the fine-tuning electric valve 7 automatically adjusts the opening according to the flow and pressure, and turns on the power frequency water pump 312 through the power frequency, thereby ensuring the user Use normal water.

In summary, the utility model provides a frequency conversion water supply control system, which automatically selects a water pump with an appropriate flow rate to avoid the waste of electric energy; real-time automatic pressure compensation to ensure water pressure balance; automatic voltage stabilization to ensure water supply when the frequency converter fails Stablize.

As mentioned above, for those of ordinary skill in the art, various other corresponding changes and deformations can be made according to the technical scheme and technical concept of the present utility model, and all these changes and deformations should belong to the claims of the present utility model. protected range.

Claims (6)

1. A frequency conversion water supply control system, characterized in that it comprises: a water inlet pipeline, a steady flow balancer connected to one end of the water inlet pipeline, a water pump unit, a water outlet pipeline, and an intelligent frequency conversion control system; One end of the water pump group is connected to the steady flow balancer, and the other end is connected to one end of the water outlet pipeline; The steady flow balancer is provided with a pressure sensor, and the pressure sensor is electrically connected to the intelligent frequency conversion control system; The other end of the water outlet pipeline is used to connect to the user's water intake pipe network, and a pressure sensor and a flow meter are arranged on it. The pressure sensor and the flow meter are respectively electrically connected to the intelligent control system. The flow meter is set at the pressure Between the sensor and the connection end of the user's water intake pipe network; The intelligent frequency conversion control system is electrically connected to the water pump set. 2. The frequency conversion water supply control system according to claim 1, characterized in that, the other end of the water inlet pipeline is used to connect to water storage equipment or a municipal water supply network. 3. The frequency conversion water supply control system according to claim 1, wherein the water pump group includes several first pipelines and second pipelines arranged in parallel, each first pipeline is provided with a water pump, and the first All water pumps in a pipeline have different flow rates respectively. 4. The frequency conversion water supply control system according to claim 1, characterized in that, an electric fine-tuning valve is also provided, one end of the electric fine-tuning valve is connected to the balance stabilizer, and the other end is connected to the water outlet pipeline, the electric fine-tuning valve The fine-tuning valve is electrically connected with the intelligent frequency conversion control system. 5 . The frequency conversion water supply control system according to claim 1 , wherein a pneumatic accumulator is provided on the water outlet pipeline, and the air pressure accumulator is located at the other end of the water outlet pipeline. 6 . 6. The frequency conversion water supply control system according to claim 1, characterized in that the flowmeter is a flowmeter with an output of 4-20MA.

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