CN201059688Y - Automatic control device for combined heating system with solar energy and auxiliary heater - Google Patents

Abstract

The utility model provides an automatic control device for a solar energy and auxiliary heater complementary combination heating system, which has a programmable controller, and the input end of the programmable controller is respectively connected with the temperature sensor in the solar water heater and the temperature sensor in the radiator. Another temperature sensor is connected to the indoor temperature controller, and the output end of the programmable controller is respectively connected to the solenoid valve and the control end of the water pump on the pipeline, and the output end of the programmable controller is also connected to the control end of the auxiliary heater. On the other hand, this automatic control device can realize the automatic control of the operation switching of solar water heaters, auxiliary heaters, etc., with high degree of automation, convenient control and good use effect. And the structure is simple and reasonable, and the production cost is low.

Description

Automatic control device for combined heating system with solar energy and auxiliary heater

technical field

The utility model provides a control device, in particular an automatic control device.

Background technique

In northern my country, heating in winter is essential. The boiler heating system uses non-renewable energy such as coal for heating, which has brought huge pressure on my country's energy supply and caused heavy pollution. Heating from renewable resources such as solar energy can effectively solve this problem. When solar heating is used, auxiliary heaters such as gas furnaces and electric heaters need to be used for heating when there is insufficient sunlight in rainy days or at night. If this solar heating system is controlled by manual switching, it is not only troublesome, but also has poor control effect.

Contents of the invention

The technical problem to be solved by the utility model is to provide an automatic control device for a solar energy and auxiliary heater complementary combined heating system to improve control convenience.

The utility model is realized in this way, the automatic control device of the complementary combined heating system of solar energy and auxiliary heater has a programmable controller, and the input end of the programmable controller is connected with the temperature sensor in the solar water heater and the radiator in the radiator respectively. Another temperature sensor connected to the indoor temperature controller, the output end of the programmable controller is respectively connected to the solenoid valve on the pipeline and the control end of the water pump, and the output end of the programmable controller is also connected to the auxiliary heater. on the console.

The automatic control device with the above structure can realize the automatic control of the operation switching of the solar water heater, the auxiliary heater, etc., and has high degree of automation, convenient control and good use effect. And the structure is simple and reasonable, and the production cost is low.

Description of drawings

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

Detailed ways

The specific structure of the utility model is further described below in conjunction with the embodiment that accompanying drawing provides.

As shown in the accompanying drawing, the automatic control device of the complementary combined heating system of solar energy and auxiliary heater of the present utility model has a programmable controller (8), and the input end of the programmable controller is connected with the solar water heater (2) respectively. The temperature sensor (1) in the radiator (5), another temperature sensor (6) in the radiator (5) and the indoor temperature controller (9) are connected, and the output ends of the programmable controller are respectively connected to the electromagnetic valve (3) on the pipeline. ), the control end of the water pump (4), the output end of the programmable logic controller is also connected on the control end of the auxiliary heater (7).

The auxiliary heater (7) is a gas furnace or an electric water heater.

The programmable controller can be transformed on the control chip of the original auxiliary heater. That is, the control program of the whole system can be input into the original chip to realize the control action of the utility model.

The two temperature sensors can be digital temperature sensors, and the temperature digital information measured by them is directly sent to the programmable controller. If an analog temperature sensor is used, it will be converted through an A/D converter. The signal output by the programmable controller can be connected to the solenoid valve to control the action of the solenoid valve. The control terminal of the water pump is an electronic switch connected to the power supply circuit of the water pump. When the auxiliary heater adopts an electric heater, the control terminal of the electric heater can also be an electronic switch connected to the power supply circuit of the electric heater. When the auxiliary heater adopts a gas furnace, the control end of the gas furnace can be an electromagnetic valve connected to the gas supply pipeline of the gas furnace and an electronic switch on the ignition device.

The programmable controller processes the temperature information measured by the temperature sensor, the temperature information set by the indoor temperature controller, etc., and then controls the actions of the auxiliary heater, solenoid valve, water pump, etc. The specific structure and working principle of this programmable controller are obvious to those skilled in the art, and they can be selected according to needs without any creative work, and will not be described in detail. Obviously, the programmable controller, temperature sensor, and electronic switch should be connected with working power.

Solar water heaters, gas furnaces or electric heaters are commercially available products, and their specific structures and working principles are no longer described in detail. The auxiliary heater installed on the pipeline heats the water in the pipeline.

The power of the solar water heater should match the power of the radiator, and the power of the gas furnace and electric heater should match the heating area.

Indoor temperature controller (9) can adopt button type or knob type. The user can set it in a suitable room to set the room temperature data. The indoor temperature controller also has the function of a temperature sensor.

Before use, turn on the power, and set the temperature conditions for controlling the action of solenoid valves, water pumps, and auxiliary heaters on the programmable controller. And the control program is pre-written and stored in the programmable controller.

During use, when the water temperature in the solar water heater reaches the set temperature A and is higher than the water temperature in the radiator, the programmable controller will control the solenoid valve to close it, and at the same time turn off the auxiliary heater. Work. The programmable controller controls the work of the water pump, and the water circulates through the pipeline between the solar water heater and the radiator, and the heat is supplied by the solar water heater. When circulating for a period of time, the water temperature in the solar water heater measured by the temperature sensor (1) drops to another set temperature B, and when the room temperature is lower than the temperature C set by the indoor temperature controller, the programmable controller controls the electromagnetic The valve is opened, and the auxiliary heater is controlled to work at the same time, and the auxiliary heater is supplied with heat.

The indoor temperature controller is involved in controlling the opening of the auxiliary heater. If the room temperature is higher than the temperature C set by the indoor temperature controller, the auxiliary heater will not work even if the water temperature in the radiator and the auxiliary heater drops to a very low level.

The radiator (5) is a floor heating coil or a cooling fin.

Claims (2)

1. The automatic control device of the complementary combination heating system of solar energy and auxiliary heater is characterized in that it has a programmable controller (8), and the input end of the programmable controller is connected with the temperature sensor in the solar water heater (2) respectively. (1), another temperature sensor (6) in the radiator (5) is connected with the indoor temperature controller (9), and the output end of the programmable logic controller is respectively connected to the electromagnetic valve (3) and the water pump ( 4) on the control terminal, the output terminal of the programmable controller is also connected to the control terminal of the auxiliary heater (7) 2. The automatic control device of the solar energy and auxiliary heater complementary combined heating system according to claim 1, characterized in that, the auxiliary heater (7) is a gas furnace or an electric water heater.

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