阅读说明：本技术 一种多能互补的三联供装置 (Multi-energy complementary triple supply device ) 是由 张云峰 张璐 刘鹏 于 2019-10-10 设计创作，主要内容包括：本发明公开了一种多能互补的三联供装置,该装置是以空气能为主,太阳能和地热能为辅的集供冷、供暖和供热水于一体的热泵装置。该装置包括室外装置、室内装置和控制器；室内装置包括室内空调风盘、室内热交换器和水箱；室外装置包括空气源热泵、太阳能集热器和地下埋管,空气源热泵连接用户端的室内空调风盘是主要供冷供热通过第四循环水泵进行热传递,太阳能集热器和地下埋管为供热水和辅助供热提供热源两端分别通过第一四通电磁阀和第二四通电磁阀连接水箱和室内热交换器。与传统的供能技术相比,本发明提出的装置既克服了太阳能集热的非连续性,又避免了采用单一热源空气能或地热能供热不足的缺陷,还可以实现区域多能源负荷需求的动态调节。(The invention discloses a multi-energy complementary triple supply device, which is a heat pump device which mainly uses air energy and secondarily uses solar energy and geothermal energy and integrates cooling, heating and hot water supply. The device comprises an outdoor device, an indoor device and a controller; the indoor device comprises an indoor air-conditioning air disc, an indoor heat exchanger and a water tank; the outdoor device comprises an air source heat pump, a solar heat collector and an underground buried pipe, an indoor air conditioner air disc of the air source heat pump connected with a user side is mainly used for cooling and heating and is subjected to heat transfer through a fourth circulating water pump, and the solar heat collector and the underground buried pipe provide heat source for heating water and auxiliary heating and are connected with a water tank and an indoor heat exchanger through a first four-way electromagnetic valve and a second four-way electromagnetic valve respectively at two ends. Compared with the traditional energy supply technology, the device provided by the invention not only overcomes the discontinuity of solar heat collection, but also avoids the defect of insufficient heat supply by adopting single heat source air energy or geothermal energy, and can also realize the dynamic regulation of regional multi-energy load requirements.)

1. A multi-energy complementary triple supply device is characterized by comprising an indoor device, an outdoor device and a controller, wherein a second four-way electromagnetic valve, an indoor heat exchanger, a first four-way electromagnetic valve and the controller form a user side loop, an indoor air sensor is arranged in a user and feeds back to the controller, and when the indoor temperature reaches the required temperature, the controller closes the corresponding electromagnetic valve and a circulating water pump; the second four-way electromagnetic valve, the water tank, the first four-way electromagnetic valve and the controller form a user side loop to form a control heating water loop, a temperature sensor is also arranged in the water tank, and when the required water temperature is reached, the controller can close the corresponding electromagnetic valve and the circulating water pump; the air source heat pump, the first electromagnetic valve, the indoor air conditioner air disc, the fourth circulating water pump and the second electromagnetic valve form a refrigeration main heating loop; the controller, the second four-way electromagnetic valve, the parallel loop (the third electromagnetic valve, the first circulating water pump, the air source heat pump, the fourth electromagnetic valve and the fifth electromagnetic valve), the fifth electromagnetic valve, the sixth electromagnetic valve, the second circulating water pump, the solar thermal collector, the third circulating water pump, the underground buried pipe, the eighth electromagnetic valve and the first four-way electromagnetic valve form a heating water loop or are used for assisting in heating.

2. The multi-energy complementary triple supply device according to claim 1, wherein a compressor, an expansion valve, a water heat exchanger and a wind heat exchanger are arranged in the air source heat pump.

3. The device of claim 1, wherein the multi-energy complementation is air energy, solar energy and geothermal energy, wherein the air energy is mainly used, the solar energy and the geothermal energy are used as auxiliary energy, the heat demand in winter is large, the ambient temperature is low, and a single air energy heat pump may have insufficient heat supply and low heat supply efficiency, i.e. solar energy and geothermal energy may be used to assist in heating the ambient temperature and assist in heating.

Technical Field

The invention belongs to the technical field of energy utilization and heat pumps, and particularly relates to a multi-energy complementary triple supply device.

Background

Rapid development of global economy has driven a rapid increase in energy demand. However, conventional fossil fuel energy sources are limited and accompanied by emission of harmful gases, so their increased use has an adverse effect on the ecological environment. The reduction of energy consumption and the reduction of fossil fuel use have become common social consensus. Renewable energy has the advantages of green, energy saving and zero emission, and the development and utilization of renewable energy are paid more and more attention.

The air source heat pump is used as a system form of a heat pump technology and has the advantages of low use cost, easiness in operation, good heating effect, safety and the like. The air source heat pump has the technical problems of unstable operation, low energy efficiency and the like in actual operation, particularly when the air source heat pump operates in a low-temperature environment, the air source heat pump is easy to freeze due to accumulated water in a pipeline, and the pipeline is frozen and cracked, so that the air source heat pump needs to operate continuously or intermittently, the actual energy-saving effect is poor, and the further popularization and application of the air source heat pump in the low-temperature environment are limited.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a multi-energy complementary triple supply device, which combines air energy, solar energy and geothermal energy together to supply cold, heat and hot water for users. The system can fully exert the complementary advantages of air energy, solar energy and geothermal energy, overcomes the defect that the air source heat pump needs to operate continuously or intermittently at low temperature, saves the investment cost and has stable working performance.

The technical scheme adopted by the invention for solving the technical problems is as follows: the indoor air sensor is arranged in a user and feeds back to the controller, and when the indoor temperature reaches the required temperature, the controller closes the corresponding electromagnetic valve and the circulating water pump; the second four-way electromagnetic valve, the water tank, the first four-way electromagnetic valve and the controller form a user side loop to form a control heating water loop, a temperature sensor is also arranged in the water tank, and when the required water temperature is reached, the controller can close the corresponding electromagnetic valve and the circulating water pump; the air source heat pump, the first electromagnetic valve, the indoor air conditioner air disc, the fourth circulating water pump and the second electromagnetic valve form a refrigeration main heating loop; the controller, the second four-way electromagnetic valve, the parallel loop (the third electromagnetic valve, the first circulating water pump, the air source heat pump, the fourth electromagnetic valve and the fifth electromagnetic valve), the fifth electromagnetic valve, the sixth electromagnetic valve, the second circulating water pump, the solar thermal collector, the third circulating water pump, the underground buried pipe, the eighth electromagnetic valve and the first four-way electromagnetic valve form a heating water loop or are used for assisting in heating.

The law of energy conversion and transfer of the multi-energy complementary triple power supply device follows a first law of thermodynamics and a second law of thermodynamics. As shown in the following formula, according to the sequential principle of reverse Carnot refrigeration, the coefficient of the air energy heat pump is obviously affected by the ambient temperature:

wherein, is the air energy heat pump coefficient, q₁、q₂For endothermic and exothermic amounts, w_netFor net work circulation, equal to q₁-q₂，T₁、T₂Room temperature and ambient temperature. When the ambient temperature T₂The air energy heat pump coefficient is low when the temperature is low, and the solar energy and the geothermal energy can be utilized for auxiliary heat supply at the moment to improve the temperature T₂Not only can improve the coefficient of the air energy heat pump, but also can increase the heating capacity q₁And optimization of energy conservation is realized.

Compared with the traditional energy supply technology, the multi-energy complementary triple-generation device combines air energy, solar energy and geothermal energy together, thereby not only overcoming the discontinuity of solar energy collection, but also avoiding the defect of insufficient heat supply by adopting single heat source air energy or geothermal energy, and also realizing the dynamic regulation of regional multi-energy load requirements.

Drawings

Fig. 1 is a system diagram of a multi-energy complementary triple supply device according to the present invention.

Wherein: the indoor unit 1, the outdoor unit 2, the controller 3, the air source heat pump 4, the first solenoid valve 5, the second solenoid valve 6, the first circulating water pump 7, the third solenoid valve 8, the fourth solenoid valve 9, the fifth solenoid valve 10, the solar collector 11, the sixth solenoid valve 12, the second circulating water pump 13, the third circulating water pump 14, the underground pipe 15, the seventh solenoid valve 16, the eighth solenoid valve 17, the first four-way solenoid valve 18, the water tank 19, the first three-way solenoid valve 20, the user 21, the indoor air sensor 22, the second three-way solenoid valve 23, the second four-way solenoid valve 24, the indoor air conditioner air disk 25, the fourth circulating water pump 26, the temperature sensor 27, and the indoor heat exchanger 28.

Detailed Description

The invention relates to a multi-energy complementary (mainly air energy and secondarily solar energy and geothermal energy) triple-generation (cooling, heating and hot water supply) device, which mainly comprises an indoor device 1, an outdoor device 2 and a controller 3. The air source heat pump 4, the first electromagnetic valve 5, the indoor air conditioning air disc 25, the fourth circulating water pump 26 and the second electromagnetic valve 6 form a refrigerating and heating loop; the air energy unit and the geothermal energy unit form an auxiliary heating system. The third electromagnetic valve 8, the first circulating water pump 7, the air source heat pump 4 and the fourth electromagnetic valve 9 form an air energy module which is connected with the fifth electromagnetic valve 10 in parallel, one end of the air energy module is connected with the second four-way electromagnetic valve 24, and the other end of the air energy module is connected with the sixth electromagnetic valve 12. The controller 3, the second four-way electromagnetic valve 24, the fifth electromagnetic valve 10, the sixth electromagnetic valve 12, the second circulating water pump 13, the solar thermal collector 11, the third circulating water pump 14, the underground buried pipe 15, the eighth electromagnetic valve 17 and the first four-way electromagnetic valve 18 form a hot water heating loop controlled by the controller 3 or are used for assisting in heating. When the system consisting of the air source heat pump 4, the first electromagnetic valve 5, the indoor air conditioning air disc 25, the fourth circulating water pump 26 and the second electromagnetic valve 6 is used for refrigerating, the heat converted by the air source heat pump 4 can be used for heating water. Therefore, the controller 3, the second four-way solenoid valve 24, the third solenoid valve 8, the first circulating water pump 7, the air source heat pump 4, the fourth solenoid valve 9, the sixth solenoid valve 12, the second circulating water pump 13, the solar thermal collector 11, the third circulating water pump 14, the underground buried pipe 15, the eighth solenoid valve 17 and the first four-way solenoid valve 18 form a hot water making loop formed by the controller 3. The controller 3, the second four-way solenoid valve 24, the water tank 19, the first four-way solenoid valve 18, the controller 3 constitute a control heating hot water loop (close the first three-way solenoid valve 20), and the temperature sensor 27 is connected with the controller 3 and used for feeding back the temperature of the hot water in the water tank 19. The controller 3, the second four-way solenoid valve 24, the indoor heat exchanger 28, the first four-way solenoid valve 18, and the controller 3 constitute a control auxiliary heating loop (close the second three-way solenoid valve 23), and the indoor air sensor 22 is connected to the controller 3 for controlling the indoor temperature.

Independent refrigeration: and under the action of a fourth circulating water pump 26, a refrigerating circuit (closing the electromagnetic valves 8,9,12 and 17; closing the three-way electromagnetic valves 20 and 23; closing the circulating water pumps 7,13 and 14) is formed by the air source heat pump 4, the second electromagnetic valve 6, the fourth circulating water pump 26, the indoor air-conditioning air disc 25 and the first electromagnetic valve 5.

Heating independently: and under the action of a fourth circulating water pump 26, a heating loop (closing the electromagnetic valves 8,9,12 and 17; closing the three-way electromagnetic valves 20 and 23; closing the circulating water pumps 7,13 and 14) is formed by the air source heat pump 4, the second electromagnetic valve 6, the fourth circulating water pump 26, the indoor air conditioning air disc 25 and the first electromagnetic valve 5. An auxiliary heating system can be used for heating, and an indoor heat exchanger 28, a second four-way electromagnetic valve 24, a third electromagnetic valve 10, a fourth electromagnetic valve 12, a second circulating water pump 13, a solar heat collector 11, a third circulating water pump 14, an underground pipe 15, a sixth electromagnetic valve 17, a first four-way electromagnetic valve 18 and the indoor heat exchanger 28 form the auxiliary heating system (the electromagnetic valves 5,6,8,9 and 16 are closed, the first three-way electromagnetic valve 20 is closed, and the circulating water pumps 7 and 26 are closed).

Independently making hot water: a water heating loop (electromagnetic valves 5,6,8,9 and 16 are closed, the first three-way electromagnetic valve 20 is closed, and the circulating water pumps 7 and 26 are closed) is formed by a water tank 19, a second four-way electromagnetic valve 24, a third electromagnetic valve 8, a first circulating water pump 7, an air source heat pump 4, a fourth electromagnetic valve 9, a sixth electromagnetic valve 12, a second circulating water pump 13, a solar heat collector 11, a third circulating water pump 14, an underground buried pipe 15, an eighth electromagnetic valve 17, a first four-way electromagnetic valve 18 and the water tank 19. The water temperature is fed back to the controller 3 through the temperature sensor 27, and if the expected temperature is reached, the seventh electromagnetic valve 16 is opened; opening the first three-way solenoid valve 20; closing the electromagnetic valves 12, 17; the circulating water pumps 13,14 are turned off.

Combined refrigeration and heating water: the refrigeration circuit is the same as the single refrigeration. The water heating system can utilize heat generated by refrigeration of the air source heat pump 4, and a water tank 19, a second four-way electromagnetic valve 24, a third electromagnetic valve 8, a first circulating water pump 7, the air source heat pump 4, a fourth electromagnetic valve 9, a sixth electromagnetic valve 12, a second circulating water pump 13, a solar heat collector 11, a third circulating water pump 14, an underground buried pipe 15, an eighth electromagnetic valve 17, a first four-way electromagnetic valve 18 and the water tank 19 form a water heating loop (electromagnetic valves 5,6,10 and 16 are closed, the first three-way electromagnetic valve 20 is closed, and the circulating water pump 26 is closed).

Combined heating and water heating: the heating loop is the same as independent heating, and a water tank 19, a second four-way electromagnetic valve 24, a fifth electromagnetic valve 10, a sixth electromagnetic valve 12, a second circulating water pump 13, a solar heat collector 11, a third circulating water pump 14, an underground buried pipe 15, an eighth electromagnetic valve 17, a first four-way electromagnetic valve 18 and the water tank 19 form a heating water loop (electromagnetic valves 8,9 and 16 are closed, the first three-way electromagnetic valve 20 is closed, and the circulating water pump 7 is closed).