CN207392300U - Automatic resident living water supply installation under photovoltaic auxiliary powering mode - Google Patents

Abstract

The utility model relates to a water supply device, in particular to an automatic residential water supply device in a photovoltaic auxiliary power supply mode. Automatic residential water supply device under the photovoltaic auxiliary power supply mode, the power output terminals of the photovoltaic power supply system and the municipal power supply system are connected to the tap water inverter and the green water inverter, the tap water inverter is connected to the tap water pump, and the green water inverter is connected to the green water pump A voltage transmitter is installed on the battery pack of the photovoltaic power supply system, the voltage transmitter is connected to the analog-to-digital converter, the analog-to-digital converter is connected to the central processing unit of the programmable controller, and the output terminal of the central processing unit is connected to the first The AC contactor is connected to the second AC contactor. The utility model adds a photovoltaic power supply system to provide electric energy for tap water and green water at the same time, effectively reducing the consumption of electric energy of the municipal power grid, dual power supply and automatic switching improves the stability of power supply, energy saving and environmental protection.

Description

Automatic Residential Water Supply Device in Photovoltaic Auxiliary Power Supply Mode

technical field

The utility model relates to a water supply device, in particular to an automatic residential water supply device in a photovoltaic auxiliary power supply mode, which can simultaneously meet the requirements of residents' domestic water and park greening water.

Background technique

With the development of society, the construction of residential parks is advancing rapidly, and now most of the residential buildings are high-rise buildings. In order to meet the daily water needs of high-rise owners, developers will separately set up one or more sets of tap water pressurization systems to ensure that the water supply pressure of high-rise residents meets the national standard. The current water supply control system mode is mainly: on the basis of the mains power source, the water supply pressure of the pipeline is detected in real time through components, and the measured value is transmitted to the control module. After a series of calculations, a control signal is sent to the motor speed control device, thereby Change the running speed of the water pump to ensure sufficient water pressure in the pipeline. The power supply of the existing residential water supply device is single, the stability of the power supply is poor, and energy is wasted.

Contents of the invention

In order to solve the above technical problems, the utility model provides an automatic residential water supply device under the photovoltaic auxiliary power supply mode, the purpose is to increase the photovoltaic power supply system to provide electric energy for tap water and green water at the same time, and effectively reduce the power consumption of the municipal power grid. Consumption, dual power supply and automatic switching improves the stability of power supply, reduces the system's dependence on mains power when the municipal power supply is alone, energy saving and environmental protection.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The automatic residential water supply device under the photovoltaic auxiliary power supply mode has the following structure: the power output terminals of the photovoltaic power supply system and the municipal power supply system are connected to the tap water frequency converter and the green water frequency converter, the tap water frequency converter is connected to their respective water pumps, and the green water frequency conversion The voltage transmitter is connected to each green water pump, the battery pack of the photovoltaic power supply system is installed with a voltage transmitter, the signal output terminal of the voltage transmitter is connected to the analog-to-digital converter, and the analog-to-digital converter is connected to the central processing unit of the programmable controller , the switching signal output terminal of the central processor of the programmable controller and the first AC contactor that controls the switching of the photovoltaic power supply system, the switching signal output terminal of the central processor of the programmable controller and the first AC contactor that controls the switching of the municipal power supply system Two AC contactor connections.

The structure of the above-mentioned photovoltaic power supply system is as follows: the output end of the photovoltaic panel is connected to the incoming line end of the photovoltaic panel charging controller and the incoming line end of the third AC contactor, and the outgoing line end of the third AC contactor is connected to the inverter through the first protection diode. connected to the incoming line end of the inverter, the outgoing line end of the photovoltaic panel charge controller is connected to the incoming line end of the inverter through the second protection diode, and the other outgoing line end of the photovoltaic panel charge controller is connected to the inverter through the battery pack and the second protection diode The incoming line end of the inverter is connected, and the outgoing line end of the inverter is connected to the first AC contactor.

The input end of the above-mentioned first AC contactor is connected to the photovoltaic power supply system, the input end of the second AC contactor is connected to the municipal power supply system, and the output ends of the first AC contactor and the second AC contactor are connected in parallel to the tap water frequency converter and Green water inverter connection.

The central processing unit of the above-mentioned programmable controller is connected with the display.

Owing to adopting above-mentioned technical scheme, make the utility model have following advantage and effect:

The utility model adds a photovoltaic power supply system to provide electric energy for tap water and green water at the same time, which can effectively reduce the consumption of electric energy of the municipal power grid. The dual power supply and automatic switching improves the stability of the power supply, and reduces the power supply system of the municipal power supply alone. Reliance on mains electricity, energy saving and environmental protection.

Description of drawings

Fig. 1 is a circuit block diagram of the automatic residential water supply device of the utility model under the photovoltaic auxiliary power supply mode.

In the figure, 1. Photovoltaic power supply system, 2. Municipal power supply system, 3. Tap water inverter, 4. Green water inverter, 5. Tap water pump, 6. Green water pump, 7. Battery pack, 8. Voltage transmitter, 9. Analog-to-digital converter, 10. Central processing unit of programmable controller, 11. First AC contactor, 12. Second AC contactor, 13. Photovoltaic panel, 14. Photovoltaic panel charging controller, 15. The first Three AC contactors, 16, the first protection diode, 17, the second protection diode, 18, the inverter, 19, the display.

Detailed ways

Below in conjunction with embodiment the utility model is further described. The following examples are only specific embodiments of the present utility model, but the design concept of the present utility model is not limited thereto, and all non-substantial changes made to the utility model by utilizing this concept should belong to violations of the protection scope of the present utility model Behavior.

As shown in Figure 1, the structure of the automatic residential water supply device under the photovoltaic auxiliary power supply mode of the present utility model is as follows: the power output terminals of the photovoltaic power supply system 1 and the municipal power supply system 2 are connected with the running water frequency converter 3 and the greening water frequency converter 4, Tap water frequency converter 3 is connected with water pump 5 respectively, and green water frequency converter 4 is connected with each greening water pump 6, and voltage transmitter 8 is installed on the battery pack 7 of photovoltaic power supply system 1, and the signal output end of voltage transmitter 8 is connected with The analog-to-digital converter 9 is connected, and the analog-to-digital converter 9 is connected to the central processing unit 10 of the programmable controller, and the switching signal output terminal of the central processing unit 10 of the programmable controller is connected to the first AC contactor 11, and the programmable control The switch signal output terminal of the central processing unit 10 of the switch is connected with the second AC contactor 12 which controls the switching of the municipal power supply system.

The structure of the above-mentioned photovoltaic power supply system 1 is as follows: the output end of the photovoltaic panel 13 is connected to the incoming line end of the photovoltaic panel charge controller 14 and the incoming line end of the third AC contactor 15, and the outgoing line end of the third AC contactor 15 passes through the first A protective diode 16 is connected to the incoming line end of the inverter, the outgoing line end of the photovoltaic panel charging controller 14 is connected to the incoming line end of the inverter 18 through the second protective diode 17, and the other outgoing line of the photovoltaic panel charging controller 14 The terminal is connected to the incoming terminal of the inverter 18 through the battery pack 7 and the second protection diode 17, and the outgoing terminal of the inverter 18 is connected to the first AC contactor 11. The central processing unit 10 of the programmable controller is connected with a display 19 . The input end of the first AC contactor 11 is connected with the photovoltaic power supply system 1, the input end of the second AC contactor 12 is connected with the municipal power supply system 2, and the output ends of the first AC contactor 11 and the second AC contactor 12 are connected in parallel with each other. The tap water frequency converter 3 is connected with the green water frequency converter 4.

The above-mentioned analog-to-digital converter 9 adopts Siemens EM235, the central processing unit 10 of the programmable controller adopts Siemens 224XP, the photovoltaic panel charging controller 14 is an existing commercially available product, and the inverter 18 adopts a three-phase output inverter. Other components are existing commercially available products, which are common knowledge in the field, and will not be described in detail.

The working principle of the utility model is as follows:

Photovoltaic power supply system 1 and municipal power supply system 2 are mutual backup power sources, realizing automatic switching, supplying power to tap water inverter 3 and green water inverter 4, and photovoltaic power supply system 1 can be preferred for power supply. The voltage transmitter 8 detects the voltage in the battery pack of the photovoltaic power supply system 1 in real time, and outputs the detection result to the central processing unit 10 of the programmable controller through the analog-to-digital converter 9, and the central processing unit 10 of the programmable controller transmits the control signal output to the first AC contactor 11 and the second AC contactor 12 .

The working principle of the photovoltaic power supply system 1 is to detect the voltage at both ends of the battery pack 7 in real time through the voltage transmitter 8, and output an analog signal to the central processing unit 10 of the programmable controller through the analog-to-digital conversion module 9 to calculate the voltage of the battery pack 7. remaining power in the battery. When the remaining power value of the battery pack 7 is lower than the cut-off power value, the first AC contactor 11 and the third AC contactor 15 are disconnected, and the second AC contactor 12 is closed. At this time, the battery pack 7 is in a charging state, and the system is in municipal Power supply status of power system 2. When the remaining power value of the battery pack 7 is higher than the input power value, the second AC contactor 12 is disconnected, and the first AC contactor 11 and the third AC contactor 15 are closed. At this time, the battery pack 7 and the photovoltaic panel 13 are connected in parallel and pass through The inverter 18 supplies power to the outside, and the system is in the power supply state of the photovoltaic power supply system 1 . In order to prevent the internal current from damaging the equipment due to voltage difference when the battery pack 7 and the photovoltaic panel 13 are connected in parallel, a first protection diode 16 and a second protection diode 17 are specially added in the photovoltaic power supply system 1 to prevent internal current from occurring.

Claims (4)

1. the automatic resident living water supply installation under photovoltaic auxiliary powering mode, it is characterised in that structure is as follows：Photovoltaic power supply system System（1）With municipal electric power system（2）Power output end and tap water frequency converter（3）With greening water frequency converter（4）Connection, originally Water frequency converter（3）With each water service pump（5）Water frequency converter is afforested in connection（4）With each greening water pump（6）Connection, photovoltaic power supply system The battery pack of system（7）On voltage transmitter is installed（8）, voltage transmitter（8）Signal output part and analog-digital converter（9）Even It connects, analog-digital converter（9）With the central processing unit of programmable controller（10）Connection, the central processing unit of programmable controller （10）On-off model output terminal and the first A.C. contactor of control photovoltaic power supply system switching（11）, programmable controller Central processing unit（10）The electric power system switching municipal with control of on-off model output terminal the second A.C. contactor (12) Connection.

2. the automatic resident living water supply installation under photovoltaic auxiliary powering mode according to claim 1, it is characterised in that The photovoltaic power supply system（1）Structure it is as follows：Photovoltaic panel（13）Output terminal and photovoltaic panel charge controller（14）Into Line end and the 3rd A.C. contactor（15）End of incoming cables connection, the 3rd A.C. contactor（15）Leading-out terminal pass through first protection two Pole pipe（16）With inverter（18）End of incoming cables connection, photovoltaic panel charge controller（14）Leading-out terminal pass through second protection two poles Pipe（17）With inverter（18）End of incoming cables connection, photovoltaic panel charge controller（14）Another leading-out terminal pass through battery pack（7） With the second protection diode（17）With inverter（18）End of incoming cables connection, inverter（18）Leading-out terminal and the first ac contactor Device（11）Connection.

3. the automatic resident living water supply installation under photovoltaic auxiliary powering mode according to claim 2, it is characterised in that First A.C. contactor（11）Input terminal and photovoltaic power supply system（1）Connection, the second A.C. contactor (12) it is defeated Enter end and municipal electric power system（2）Connection, the first A.C. contactor（11）After the second A.C. contactor (12) output terminal parallel connection With tap water frequency converter（3）With greening water frequency converter（4）Connection.

4. the automatic resident living water supply installation under photovoltaic auxiliary powering mode according to claim 2, it is characterised in that The central processing unit of the programmable controller（10）With display（19）Connection.