Multi-energy complementary clean energy heating comprehensive utilization system

Abstract

The utility model relates to a multi-energy complementary clean energy heating comprehensive utilization system which comprises a solar power generation assembly, a water treatment system, an air source heat pump, a heat accumulator, an auxiliary heater and heating equipment. The output end of the water treatment system is connected with the water replenishing port of the heat accumulator; a first circulating water outlet of the heat accumulator is connected with a water inlet of the air source heat pump through a first circulating pump, and a water outlet of the air source heat pump is connected with a first circulating water inlet of the heat accumulator; a second circulating water outlet of the heat accumulator is connected with a water inlet of the auxiliary heater through a second circulating pump, a water outlet of the auxiliary heater is connected with a water inlet of the heating equipment, and a water outlet of the heating equipment is connected with a second circulating water inlet of the heat accumulator. Through coupling of electric auxiliary heating, air energy heat supply and photovoltaic power generation, a composite energy storage application system is constructed, the application scene of heat supply is enriched, the comprehensive utilization rate of energy is improved, and the operation cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heating, and particularly relates to a multi-energy complementary clean energy heating comprehensive utilization system. BACKGROUND

[0002] With the development of renewable energy such as solar energy and wind energy in China increasing year by year, the installed capacity of wind power and solar power generation is steadily increasing year by year. Energy storage is an important way of energy consumption. The main energy storage methods at present include electrochemical energy storage, gravity energy storage, compressed air energy storage, molten salt energy storage, flywheel energy storage, super capacitor energy storage and solid energy storage. Among the many energy storage methods, photovoltaic power generation is a clean energy storage method. Compared with other heat sources, it has the advantages of no pollution, zero emission, economic saving and easy installation, and can realize heating through power generation to achieve energy saving and emission reduction. It can be used in new energy waste power utilization, power grid peak regulation and other fields on a large scale, and can be used in intelligent energy, clean energy central heating, clean energy heat and power cogeneration and other fields in a distributed manner.

[0003] Most of the existing heating applications still use traditional gas boilers and steam boilers for heating. In particular, in the northern region, the heating capacity is huge in winter, the energy consumption is large, the cost is high, but the heat conversion efficiency is low, resulting in a very low comprehensive utilization rate of energy. Based on the above background, the utility model designs a multi-energy complementary clean energy heating comprehensive utilization system. The system couples electric auxiliary heating, air energy heating and photovoltaic power generation to build a composite energy storage application system, enriches the application scenarios of heating, improves the comprehensive utilization rate of energy and reduces the operating cost. UTILITY MODEL CONTENTS

[0004] The utility model provides a multi-energy complementary clean energy heating comprehensive utilization system in view of the shortage of prior art.

[0005] The utility model is realized through the following technical schemes, a multi-energy complementary clean energy heating comprehensive utilization system, including solar power generation assembly, water treatment system, air source heat pump, heat accumulator, auxiliary heater and heating equipment, the water treatment system carries out filtration, softening treatment to tap water, and the output end of water treatment system is connected with the water supplement mouth of heat accumulator, the first circulating water outlet of heat accumulator is connected with the water inlet of air source heat pump through first circulating pump, and the water outlet of air source heat pump is connected with the first circulating water inlet of heat accumulator, the second circulating water outlet of heat accumulator is connected with the water inlet of auxiliary heater through second circulating pump, and the water outlet of auxiliary heater is connected with the water inlet of heating equipment, and the water outlet of heating equipment is connected with the second circulating water inlet of heat accumulator, the solar power generation assembly supplies power to air source heat pump, heat accumulator, auxiliary heater, first circulating pump and second circulating pump.

[0006] As optimization, the water treatment system comprises a multi-medium filter, an activated carbon filter and a softening filter connected in sequence.

[0007] As optimization, the solar power generation assembly comprises a photovoltaic power generation panel, a transformer and an accumulator connected in sequence.

[0008] As optimization, a PLC control system is further included, and the solar power generation assembly, the air source heat pump, the heat accumulator, the auxiliary heater, the first circulating pump and the second circulating pump are connected in circuit with the PLC control system.

[0009] As optimization, a water tank temperature sensor is installed in the heat accumulator, and the water tank temperature sensor is connected in circuit with the PLC control system.

[0010] As optimization, an indoor temperature sensor is further included, and the indoor temperature sensor is connected in circuit with the PLC control system.

[0011] As optimization, a pressure sensor is installed on each of the first circulating pump and the second circulating pump, and the pressure sensor is connected in circuit with the PLC control system.

[0012] The beneficial effects of the utility model are as follows: solar power generation is used for self-use, energy is saved, investment is less, return is fast, zero pollution and zero emission are achieved;

[0013] Air energy heat pump heat exchange is used to heat and supply circulating water, the operation cost is low, the system is operated for 8-12 hours every day, the energy efficiency ratio COP is 3-3.5, the energy saving efficiency is high, the use cost is lower than that of a gas boiler and a steam boiler, and the investment recovery period is short.

[0014] The auxiliary heater is used to start in extremely cold weather, at night or in rainy weather, the heating effect is guaranteed, and the use cost is reduced, and the heat conversion rate is as high as 98%.

[0015] The water treatment system is used for filtering and softening water supply, scale production is effectively reduced, and the practical life of equipment is prolonged.

[0016] The PLC control system is used for monitoring the state of each equipment in cooperation with each sensor, and each equipment is automatically adjusted, so that the use is more convenient.

[0017] The system is safe and stable in overall operation, meets the national energy saving and emission reduction policy, can realize the peak carbon and carbon neutralization target, is coupled through electric auxiliary heating and air energy heating and photovoltaic power generation, constructs a composite energy storage application system, enriches the application scene of heating, improves the comprehensive utilization rate of energy, and reduces the operation cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a process schematic diagram of the utility model;

[0019] As shown in the figure:

[0020] 1, water treatment system, 11, multi-medium filter, 12, activated carbon filter, 13, softening filter, 2, heat accumulator, 3, first circulating pump, 4, air source heat pump, 5, second circulating pump, 6, auxiliary heater, 7, heating device, 8, solar power generation assembly, 81, photovoltaic power generation panel, 82, transformer, 83, accumulator, 9, pressure sensor, 10, water tank temperature sensor. DETAILED DESCRIPTION

[0021] In order to clearly illustrate the technical features of the present scheme, the present scheme will be described below through specific embodiments.

[0022] As Figure 1 shown, a multi-energy complementary clean energy heating comprehensive utilization system, comprising a solar power generation assembly 8, a water treatment system 1, an air source heat pump 4, a heat accumulator 2, an auxiliary heater 6 and a heating device 7.

[0023] The water treatment system 1 filters and softens the tap water, and the output end of the water treatment system 1 is connected with the water supplementing port of the heat accumulator 2. Specifically, the water treatment system 1 comprises a multi-medium filter 11, an activated carbon filter 12 and a softening filter 13 which are connected in sequence. The tap water from outside is first input into the multi-medium filter 11, and then enters the activated carbon filter 12 after removing various suspended solids, colloids, particles and impurities in the tap water through the multi-medium filter 11. The activated carbon filter 12 filters and adsorbs the organic matter in the tap water for the second time to reduce COD and residual chlorine. Finally, the softened tap water is supplemented into the heat accumulator 2 through the softening filter 13.

[0024] The first circulating water outlet of the heat accumulator 2 is connected with the water inlet of the air source heat pump 4 through the first circulating pump 3, and the water outlet of the air source heat pump 4 is connected with the first circulating water inlet of the heat accumulator 2.

[0025] The tap water in the heat accumulator 2 is transported into the air source heat pump 4 through the first circulating pump 3 for primary heating. The air source heat pump 4 absorbs the low-temperature heat in the air and converts it into high-temperature heat, so as to heat the tap water to 50-55℃ and transport it back into the heat accumulator 2 for heat storage.

[0026] The second circulating water outlet of the heat accumulator 2 is connected with the water inlet of the auxiliary heater 6 through the second circulating pump 5, the water outlet of the auxiliary heater 6 is connected with the water inlet of the heating device 7, and the water outlet of the heating device 7 is connected with the second circulating water inlet of the heat accumulator 2. The heating device 7 in the embodiment adopts a heating sheet.

[0027] The tap water heated once by the air source heat pump 4 is transported by the second circulating pump 5, enters the heating device 7 through the auxiliary heater 6, thereby exchanging heat with the indoor to provide heating, and the tap water after heat exchange returns to the heat accumulator 2 to be heated again. When in extremely cold weather, at night or in rainy weather, the indoor heating is insufficient, the tap water heated once by the air source heat pump 4 can be heated twice to 75-80℃ by the auxiliary heater 6, thereby improving the heating effect.

[0028] The solar power generation assembly 8 supplies power to the air source heat pump 4, the heat accumulator 2, the auxiliary heater 6, the first circulating pump 3 and the second circulating pump 5.

[0029] Specifically, the solar power generation assembly 8 includes a photovoltaic power generation panel 81, a step-up transformer 82 and a storage device 83 connected in sequence. The photovoltaic power generation panel 81 converts solar energy into direct current and transports it to the step-up transformer 82, the step-up transformer 82 converts the direct current into alternating current and stores it in the storage device 83, thereby realizing power supply to each device.

[0030] Further including a PLC control system (not shown in the figure), the solar power generation assembly 8, the air source heat pump 4, the heat accumulator 2, the auxiliary heater 6, the first circulating pump 3 and the second circulating pump 5 are connected in circuit with the PLC control system, and the operating state of each device is controlled and adjusted by the PLC control system.

[0031] The heat accumulator 2 is provided with a water tank temperature sensor 10 connected in circuit with the PLC control system. The water tank temperature sensor 10 monitors the temperature of the tap water in the heat accumulator 2. When the water tank temperature sensor 10 detects that the water temperature in the heat accumulator 2 is low, a feedback signal is sent to the PLC control system, the PLC control system controls the first circulating pump 3 to improve the delivery efficiency and thereby speed up the water circulation, and controls the air source heat pump 4 to improve the heating efficiency, thereby increasing the temperature of the heat storage water in the heat accumulator 2 and realizing automatic adjustment of the heat storage temperature.

[0032] Further including an indoor temperature sensor (not shown in the figure), the indoor temperature sensor is connected in circuit with the PLC control system. The indoor temperature sensor is installed indoors and is used to monitor the indoor temperature. When in extremely cold weather, at night or in rainy weather, the heat of the tap water heated once by the air source heat pump 4 is not enough to meet the heating demand, at this time the indoor temperature is low or does not reach the set temperature, the indoor temperature sensor sends a feedback signal to the PLC control system, the PLC control system controls the auxiliary heater 6 to start, thereby heating the tap water twice to improve the heating temperature, and realizes automatic adjustment of the indoor temperature.

[0033] The first circulating pump 3 and the second circulating pump 5 are both provided with pressure sensors 9, which are connected with the PLC control system circuit. The delivery flow pressure of the first circulating pump 3 and the second circulating pump 5 is monitored by the pressure sensors 9, so as to prevent the damage of the rear equipment caused by excessive pressure, and the delivery flow of the circulating pump is controlled and adjusted by the PLC control system.

[0034] Of course, the above description is not limited to the above examples, and the technical features not described in the utility model can be realized by or using the prior art, which will not be described here. The above examples and drawings are only used to illustrate the technical scheme of the utility model and are not a limitation on the utility model. The utility model has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model and should also belong to the protection scope of the claims of the utility model.

Claims

1. A multi-energy complementary clean energy heating integrated utilization system, characterized in that: Includes solar power generation components (8), water treatment system (1), air source heat pump (4), heat storage unit (2), auxiliary heater (6) and heating equipment (7); The water treatment system (1) filters and softens tap water, and the output end of the water treatment system (1) is connected to the water inlet of the heat storage device (2). The first circulation outlet of the heat storage unit (2) is connected to the inlet of the air source heat pump (4) through the first circulation pump (3), and the outlet of the air source heat pump (4) is connected to the first circulation inlet of the heat storage unit (2). The second circulation outlet of the heat storage unit (2) is connected to the inlet of the auxiliary heater (6) via the second circulation pump (5), the outlet of the auxiliary heater (6) is connected to the inlet of the heating equipment (7), and the outlet of the heating equipment (7) is connected to the second circulation inlet of the heat storage unit (2). The solar power generation component (8) supplies power to the air source heat pump (4), the heat storage device (2), the auxiliary heater (6), the first circulation pump (3), and the second circulation pump (5).

2. The multi-energy complementary clean energy heating integrated utilization system according to claim 1, characterized in that: The water treatment system (1) includes a multi-media filter (11), an activated carbon filter (12), and a softening filter (13) connected in sequence by pipelines.

3. The multi-energy complementary clean energy heating integrated utilization system according to claim 1, characterized in that: The solar power generation component (8) includes a photovoltaic power generation panel (81), an inverter (82), and an energy storage device (83) connected in sequence by circuits.

4. The multi-energy complementary clean energy heating integrated utilization system according to claim 1, characterized in that: It also includes a PLC control system, and the solar power generation component (8), air source heat pump (4), heat storage device (2), auxiliary heater (6), first circulation pump (3), and second circulation pump (5) are all connected to the PLC control system circuit.

5. A multi-energy complementary clean energy heating integrated utilization system according to claim 4, characterized in that: The heat storage device (2) is equipped with a water tank temperature sensor (10), which is connected to the PLC control system circuit.

6. The multi-energy complementary clean energy heating integrated utilization system according to claim 4, characterized in that: It also includes an indoor temperature sensor, which is connected to the PLC control system circuit.

7. The multi-energy complementary clean energy heating integrated utilization system according to claim 1, characterized in that: Pressure sensors (9) are installed on both the first circulating pump (3) and the second circulating pump (5), and the pressure sensors are connected to the PLC control system circuit.

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