CN202722160U - Solar energy air source heat pump greenhouse heating device - Google Patents

Abstract

The utility model relates to a solar air source heat pump greenhouse heating device, which belongs to the technical field of solar energy. The air source heat pump is connected to the 220VAC power supply, and the heat preservation water pipe of the air source heat pump is connected to the heating water tank through the hydraulic pump II. There is a water level gauge in the heating water tank. There is a temperature control switch indirectly; the heating water tank is connected to an external water source, and the water inlet pipe is connected to an electromagnetic switch; the heating water tank is connected to the solar water heater through the hydraulic pump III; the heat storage tank is connected to the temperature sensor II, and the heat storage tank is connected to the greenhouse The radiator flows back into the heating water tank through the hydraulic pump Ⅰ, and the temperature sensor Ⅰ is fixed in the greenhouse. The utility model is convenient to use, less in investment, energy-saving and environment-friendly, and can meet the temperature requirements in the greenhouse for all-weather and all-time.

Description

A solar air source heat pump greenhouse heating device

technical field

The utility model relates to a solar air source heat pump greenhouse heating device, which belongs to the technical field of solar energy. the

Background technique

Greenhouses are an important symbol of modern agriculture. Vegetables, flowers and other crops can be grown in greenhouses, but to ensure the yield and quality of crops, the requirements for the greenhouse environment are very high. Temperature is the most important part of the greenhouse environment, especially in winter when the temperature is low, it is necessary to choose an appropriate heating method for the greenhouse and equip it with corresponding heating equipment to ensure that the room temperature at night can meet the needs of crop growth. the

At present, the greenhouse heating methods at home and abroad mainly include hot air heating, hot water heating, electric heating and so on. But each of these methods has advantages and disadvantages. Although the hot air heating method is easy to achieve temperature regulation and requires less equipment investment, its operating costs and power consumption are large, and the hot air system greatly affects the change of indoor humidity; the hot water heating method makes the heat in the greenhouse stable. The performance is good, but the heating equipment still needs high-grade electric energy and fuel, and the finished product is generally high. Electric heating has a good heating effect, but it needs to consume a large amount of high-grade electric energy. the

There are also a variety of heating equipment in greenhouses, and the most commonly used supplementary heating equipment can be summarized into two types: ①Using conventional energy to increase temperature during the day and most nights in winter, the heating system cost and operating cost are very high, and it is harmful to the environment cause different levels of pollution. ② Use solar energy system to collect heat and adjust temperature for greenhouse. This method is seriously affected by the external climate. Sometimes it cannot run around the clock only by relying on solar energy. In addition, most of the heat required by the greenhouse is supplied at night. Even if an auxiliary heating system is added, it still needs A large amount of high-grade electric energy is consumed, and the problem of energy waste still exists. the

Due to the shortcomings of high cost, low efficiency, and environmental pollution in most heating methods and heating equipment, with the rapid development of modern agriculture, energy saving, high efficiency and environmental protection have become the theme of the development of facility agriculture in all countries in the world. Greenhouse heating methods and heating equipment are also developing in the direction of energy saving, high efficiency and environmental protection. the

Contents of the invention

In view of the above problems, the utility model provides a solar air source heat pump greenhouse heating device, which is easy to use, less investment, energy-saving and environmentally friendly, and can meet the temperature requirements of the greenhouse for all-weather and all-time. the

The technical solution adopted in the utility model: the device includes an air source heat pump 1, a heating water tank 2, a hot water storage tank 3, a greenhouse 4, a hydraulic pump I5, a hydraulic pump II6, a hydraulic pump III7, a radiator 9, a temperature sensor I10, a temperature Sensor Ⅱ11, solar water heater 13, water level gauge 14, 220VAC power supply 15, heat preservation water pipe 16; air source heat pump 1 is connected to 220VAC power supply 15, heat preservation water pipe 16 of air source heat pump 1 is connected to heating water tank 2 through hydraulic pump Ⅱ6, and heating water tank 2 A water level gauge 14 is installed inside, the heating water tank 2 is connected with the hot water storage tank 3, and the water pipe between the heating water tank 2 and the hot water storage tank 3 has a temperature control switch 8 indirectly; the heating water tank 2 is connected with an external water source, and the water inlet pipe is connected with an electromagnetic Switch 12; the heating water tank 2 is connected to the solar water heater 13 through the hydraulic pump III7; the heat storage tank 3 is connected to the temperature sensor II11, and the heat storage tank 3 is connected to the radiator 9 placed in the greenhouse 4, and flows back to the heating water tank through the hydraulic pump I5 2, the temperature sensor I10 is fixed in the greenhouse 4. the

The temperature control switch 8 can be a KSD301 temperature control switch; the electromagnetic switch 12 can be a QC10 series electromagnetic switch; the water level gauge 14 can be a tracking water level gauge; both the temperature sensor Ⅰ10 and the temperature sensor Ⅱ11 can use an LM135 temperature sensor. The temperature range is -55°C to +150°C, with an accuracy of 1°C; the solar water heater 13 can be of the all-glass vacuum tube type; the heat preservation water pipe 16 can be of polyurethane direct-buried heat preservation pipe; the electromagnetic switch 12 can be of the QC10 series. the

The beneficial effects of the utility model are:

(1) When the solar water heater can complete the heating of the greenhouse, the solar energy is completely used; when the temperature of the solar hot water is not enough, the air source heat pump is used as a heating supplement, which can ensure the temperature of the greenhouse 24 hours a day.

(2) When it is sunny, solar energy can be used to supply hot water, while when it is rainy and low temperature, solar water heaters can be used to provide certain heating, which reduces the power consumption of air source heat pumps. the

(3) Precise control and easy operation. the

Description of drawings

Fig. 1 is the structural representation of the utility model;

In the figure: 1-air source heat pump, 2-heating water tank, 3-hot water storage tank, 4-greenhouse, 5-hydraulic pump Ⅰ, 6-hydraulic pump Ⅱ, 7-hydraulic pump Ⅲ, 8-temperature control switch, 9 -radiator, 10-temperature sensor Ⅰ, 11-temperature sensor Ⅱ, 12-electromagnetic switch, 13-solar water heater, 14-water level gauge, 15-220VAC power supply 15, 16-insulation water pipe.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described. the

As shown in Figure 1: The device includes air source heat pump 1, heating water tank 2, hot water storage tank 3, greenhouse 4, hydraulic pump I5, hydraulic pump II6, hydraulic pump III7, radiator 9, temperature sensor I10, temperature sensor II11, Solar water heater 13, water level gauge 14, 220VAC power supply 15, heat preservation water pipe 16; air source heat pump 1 is connected to 220VAC power supply 15, heat preservation water pipe 16 of air source heat pump 1 is connected to heating water tank 2 through hydraulic pump II6, and water level is installed in heating water tank 2 Meter 14, the heating water tank 2 is connected with the hot water storage tank 3, and the water pipe of the heating water tank 2 and the hot water storage tank 3 has a temperature control switch 8 indirectly; the heating water tank 2 is connected with an external water source, and an electromagnetic switch 12 is connected on the water inlet pipe; The heating water tank 2 is connected to the solar water heater 13 through the hydraulic pump Ⅲ7; the heat storage tank 3 is connected to the temperature sensor Ⅱ11, and the heat storage tank 3 is connected to the radiator 9 placed in the greenhouse 4, and flows back into the heating water tank 2 through the hydraulic pump Ⅰ5. A temperature sensor I10 is fixed in the greenhouse 4 . the

The temperature control switch 8 can be a KSD301 temperature control switch; the electromagnetic switch 12 can be a QC10 series electromagnetic switch; the water level gauge 14 can be a tracking water level gauge; both the temperature sensor Ⅰ10 and the temperature sensor Ⅱ11 can use an LM135 temperature sensor. The temperature range is -55°C to +150°C, with an accuracy of 1°C; the solar water heater 13 can be of the all-glass vacuum tube type; the heat preservation water pipe 16 can be of polyurethane direct-buried heat preservation pipe; the electromagnetic switch 12 can be of the QC10 series. the

The temperature sensor in the greenhouse 4 monitors the temperature of the greenhouse in real time, and then takes its average value T ₀ . The required temperature of the greenhouse is T, which is allowed to float up and down Δt. Appropriate temperature T ₂ (T ₂ , ΔT, Δt can be set according to the actual production application), when T ₀ ≤ T-Δt, the greenhouse needs to supplement the temperature, turn on the hydraulic pump Ⅱ6, and the hot water in the heat storage tank passes through the radiator 9 The greenhouse 4 is heated and then returned to the heating water tank 2. When the water gauge 14 monitors that the water yield in the heating water tank 2 is insufficient, the electromagnetic switch 12 is turned on to replenish water. When the weather is good, the general solar water heater 13 can ensure the heating of the water in the storage tank 3; when the weather is bad, that is, when T _a -T≤ΔT is detected, the air source heat pump 1 is started to heat the water tank 2 of the water is heated until T _a > T ₂ and the heating can be stopped. At this time, the temperature control switch 8 is turned on, and the hot water flows from the heating water tank 2 to the hot water storage tank 3, thereby achieving the purpose of energy saving, and making full use of the air source heat pump 1 for supplementary heating can ensure the temperature of the greenhouse at any time, meeting the temperature requirements of the greenhouse .

The utility model is illustrated through a specific implementation process. Without departing from the scope of the utility model, various transformations and equivalent substitutions can be made to the utility model patent. Therefore, the utility model patent is not limited to the disclosed specific details. Implementation process, but should include all implementations that fall within the scope of the utility model patent claims. the

Claims (7)

1. A solar air source heat pump greenhouse heating device, characterized in that: the device includes an air source heat pump, a heating water tank, a heat storage tank, a greenhouse, a hydraulic pump I, a hydraulic pump II, a hydraulic pump III, a radiator, and a temperature sensor Ⅰ. Temperature sensor Ⅱ, solar water heater, water level gauge, 220VAC power supply, heat preservation water pipe; the air source heat pump is connected to 220VAC power supply, and the heat preservation water pipe of the air source heat pump is connected to the heating water tank through the hydraulic pump Ⅱ. The water level gauge is installed in the heating water tank, and the heating water tank It is connected with the hot water storage tank, and the heating water tank and the water pipe of the hot water storage tank have a temperature control switch indirectly; the heating water tank is connected to an external water source, and an electromagnetic switch is connected to the water inlet pipe; The hot water tank is connected to the temperature sensor II, the hot water storage tank is connected to the radiator placed in the greenhouse, and flows back into the heating water tank through the hydraulic pump I, and the temperature sensor I is fixed in the greenhouse. 2. The solar air source heat pump greenhouse heating device according to claim 1, characterized in that: the water level gauge is a tracking type water level gauge. 3. The solar air source heat pump greenhouse heating device according to claim 1, characterized in that: temperature sensor I and temperature sensor II are both LM135 temperature sensors, the measuring range is -55 ° C ~ +150 ° C, and the accuracy is 1 ℃. 4. The solar air source heat pump greenhouse heating device according to claim 1, characterized in that: the solar water heater can adopt the all-glass vacuum tube type. 5. The solar air source heat pump greenhouse heating device according to claim 1, characterized in that: the insulation water pipe can be directly buried polyurethane insulation pipe. 6. The solar air source heat pump greenhouse heating device according to claim 1, characterized in that: the electromagnetic switch adopts QC10 series electromagnetic switch. 7. The solar air source heat pump greenhouse heating device according to claim 1, characterized in that: the temperature control switch adopts KSD301 type temperature control switch.

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