Dual-energy storage and dual-supply system based on surface temperature and solar energy

Abstract

The present disclosure provides a dual energy storage and dual supply system based on surface temperature and solar energy, belonging to the technical field of energy storage and supply. The dual energy storage and dual supply system based on surface temperature and solar energy includes: the input ports of the soil heat storage body are respectively connected to the output ports of the surface sand temperature collector and the solar energy storage tank through pipelines, and the output ports of the soil heat storage body are respectively connected to the input ports of the surface sand temperature collector and the solar energy storage tank through pipelines. The output port of the solar heat collection field is connected to the input port of the solar energy storage tank through a pipeline, and the input port of the solar heat collection field is connected to the output port of the solar energy storage tank through a pipeline. The output port of the solar energy storage tank is used to be connected to the input port of the heating and cooling terminal through a pipeline, and the input port of the solar energy storage tank is used to be connected to the output port of the heating and cooling terminal through a pipeline. The present disclosure can solve the problems that the application of solar energy in heating and cooling technologies is easily restricted by site and weather conditions and has a high investment cost.

Description

Technical Field

[0001] The present disclosure relates to the technical field of energy storage and supply, and particularly to a dual energy storage and dual supply system based on surface temperature and solar energy. Background Art

[0002] With the development of industry and urbanization, heating and cooling have become an indispensable part of people's production and life. In terms of cooling, air conditioning systems are often used for regional cooling. Since air conditioners use electricity and refrigerants, this will cause a large amount of electricity consumption, and the use of refrigerants will pollute the environment. In terms of heating, central heating is mostly adopted, and the heat sources come from high-energy-consuming equipment such as gas boilers, coal-fired boilers and electric boilers. In recent years, measures have been actively taken everywhere to reduce the consumption of energy such as coal and oil as much as possible. At present, solar energy, as a green energy, is being gradually developed and utilized. However, there are problems that solar energy is restricted by site and weather and has a high investment cost. Summary of the Invention

[0003] Embodiments of the present disclosure provide a dual energy storage and dual supply system based on surface temperature and solar energy to solve the problems that the application of solar energy in heating and cooling technologies is easily restricted by site and weather and has a high investment cost.

[0004] Embodiments of the present disclosure provide a dual energy storage and dual supply system based on surface temperature and solar energy, including:

[0005] A solar energy storage tank, a surface sand temperature collector, a soil heat storage body, and a solar energy collection field.

[0006] The input ports of the soil heat storage body are respectively connected to the output ports of the surface sand temperature collector and the solar energy storage tank through pipelines, and the output ports of the soil heat storage body are respectively connected to the input ports of the surface sand temperature collector and the solar energy storage tank through pipelines.

[0007] The output port of the solar energy collection field is connected to the input port of the solar energy storage tank through a pipeline, and the input port of the solar energy collection field is connected to the output port of the solar energy storage tank through a pipeline.

[0008] The output port of the solar energy storage tank is used to be connected to the input port of the heating and cooling terminal through a pipeline, and the input port of the solar energy storage tank is used to be connected to the output port of the heating and cooling terminal through a pipeline.

[0009] In an exemplary embodiment of the present disclosure, the dual energy storage and dual supply system based on surface temperature and solar energy further includes: an energy storage buffer tank and an energy release buffer tank.

[0010] The output ports of the energy storage buffer tank are respectively connected to the input ports of the surface sand temperature collector, the soil heat storage body, and the energy release buffer tank through pipelines. The input ports of the energy storage buffer tank are respectively connected to the output ports of the surface sand temperature collector, the soil heat storage body, and the energy release buffer tank through pipelines.

[0011] The output port of the energy release buffer tank is used to be connected to the input port of the heating and cooling terminal through a pipeline, and the input port of the energy release buffer tank is used to be connected to the output port of the heating and cooling terminal through a pipeline.

[0012] In an exemplary embodiment of the present disclosure, the dual energy storage and dual supply system based on surface temperature and solar energy further includes: a medium circulation pump, an energy storage circulation pump, an energy release circulation pump, a solar energy circulation pump, and a heating and cooling circulation pump.

[0013] A medium circulation pump is provided on the pipeline between the input port of the surface sand temperature collector and the output port of the energy storage buffer tank.

[0014] An energy storage circulation pump is provided on the pipeline between the output port of the energy storage buffer tank and the input port of the soil heat storage body.

[0015] An energy release circulation pump is provided on the pipeline between the input port of the soil heat storage body and the output port of the energy release buffer tank.

[0016] A solar energy circulation pump is provided on the pipeline between the input port of the solar energy heat collection field and the output port of the solar energy storage tank.

[0017] A heating and cooling circulation pump is provided on the pipeline between the output port of the solar energy storage tank and the heating and cooling area entrance.

[0018] In an exemplary embodiment of the present disclosure, the dual energy storage and dual supply system based on surface temperature and solar energy further includes: a water source heat pump unit.

[0019] The first-side output port of the water source heat pump unit is connected to the input port of the solar energy storage tank through a pipeline, and the first-side input port of the water source heat pump unit is connected to the output port of the solar energy storage tank through a pipeline.

[0020] The second-side output port of the water source heat pump unit is connected to the input port of the energy release buffer tank through a pipeline, and the second-side input port of the water source heat pump unit is connected to the output port of the energy release buffer tank through a pipeline.

[0021] The water source heat pump unit is used for dual supply of heating and cooling.

[0022] In an exemplary embodiment of the present disclosure, the dual energy storage and dual supply system based on surface temperature and solar energy further includes: a water source heat pump first-side circulation pump and a water source heat pump second-side circulation pump.

[0023] A water source heat pump second-side circulation pump is provided on the pipeline between the second-side input port of the water source heat pump unit and the output port of the energy release buffer tank.

[0024] A water source heat pump first-side circulation pump is provided on the pipeline between the first-side input port of the water source heat pump unit and the output port of the solar energy storage tank.

[0025] In an exemplary embodiment of the present disclosure, the dual energy storage and dual supply system based on surface temperature and solar energy further includes: a control module, a meteorological monitoring module, and a soil monitoring module.

[0026] The control module is respectively connected to the meteorological monitoring module and the soil monitoring module.

[0027] The meteorological monitoring module is configured to collect meteorological data, and the soil monitoring module is configured to collect soil information.

[0028] The control module is configured to control the working states of the water source heat pump unit, the medium circulation pump, the energy storage circulation pump, the energy release circulation pump, the solar energy circulation pump, the heating and cooling circulation pump, the water source heat pump second-side circulation pump, and the water source heat pump first-side circulation pump according to the meteorological data and the soil information.

[0029] In an exemplary embodiment of the present disclosure, the dual energy storage and dual supply system based on surface temperature and solar energy further includes: a control valve module and an energy demand monitoring module.

[0030] The control module is respectively connected to the energy demand monitoring module and the control valve module.

[0031] The energy demand monitoring module is arranged at the heating and cooling end and is configured to monitor the energy demand data at the heating and cooling end. The control valve module is arranged on multiple pipelines.

[0032] The control module is further configured to control the opening degree of the control valve module according to the energy demand data at the heating and cooling end.

[0033] In an exemplary embodiment of the present disclosure, the meteorological monitoring module includes:

[0034] A temperature and humidity sensor, a rainfall sensor, and a light intensity sensor.

[0035] The temperature and humidity sensor, the rainfall sensor, and the light intensity sensor are all connected to the control module.

[0036] In an exemplary embodiment of the present disclosure, the soil monitoring module includes:

[0037] A soil temperature sensor and a soil humidity sensor.

[0038] The soil temperature sensor and the soil humidity sensor are all connected to the control module.

[0039] In an exemplary embodiment of the present disclosure, the dual energy storage and dual supply system based on surface temperature and solar energy further includes: a soil cold storage body.

[0040] The input ports of the soil cold storage body are respectively connected to the output ports of the energy storage buffer tank and the energy release buffer tank through pipelines, and the output ports of the soil cold storage body are respectively connected to the input ports of the energy storage buffer tank and the energy release buffer tank through pipelines.

[0041] The beneficial effects of the dual energy storage and dual supply system based on surface temperature and solar energy provided by the embodiments of the present disclosure are as follows:

[0042] On the one hand, the embodiments of the present disclosure make full use of the surface sand temperature and solar energy, reduce the dependence on traditional high-energy-consuming equipment such as gas boilers, coal-fired boilers and electric boilers, reduce power consumption, and meet the requirements of sustainable development.

[0043] On the other hand, the embodiments of the present disclosure solve the problem that solar energy is restricted by weather. Through the combination of the surface sand temperature collector and the solar heat collection field, and the cold and heat dual energy storage design of the soil heat storage body and the soil cold storage body, heat can be fully stored in summer and cold can be fully stored in winter. It is used for heating in winter and cooling in summer to achieve the continuity of heating and cooling. The construction and operation costs of solar energy are reduced, large-scale infrastructure investment is not required, the site cost is greatly saved, and the operation cost of auxiliary energy is also reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0045] Figure 1 FIG. is a schematic structural diagram of a dual energy storage and dual supply system based on surface temperature and solar energy provided by an embodiment of the present disclosure;

[0046] Figure 2 FIG. is a schematic structural diagram of a control system provided by an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0047] In order to enable those skilled in the art to better understand this solution, the following will clearly describe the technical solutions in the embodiments of this solution with reference to the drawings in the embodiments of this solution. Obviously, the described embodiments are part of the embodiments of this solution, rather than all of the embodiments. Based on the embodiments in this solution, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this solution.

[0048] In the specification and claims of this solution, and in the above-mentioned drawings, the term "including" and any other variations thereof mean "including but not limited to", intending to cover non-exclusive inclusion and not limited only to the examples listed in the text. In addition, terms such as "first" and "second" are used to distinguish different objects, rather than to describe a specific order.

[0049] The implementation of the present disclosure will be described in detail below in conjunction with specific drawings:

[0050] Figure 1 The following is a schematic structural diagram of a dual energy storage and dual supply system based on surface temperature and solar energy provided for an embodiment of the present disclosure. Refer to Figure 1 , the dual energy storage and dual supply system based on surface temperature and solar energy includes: a solar energy storage tank 3, a surface sand temperature collector 4, a soil heat storage body 5, and a solar energy collection field 7.

[0051] The input ports of the soil heat storage body 5 are respectively connected to the output ports of the surface sand temperature collector 4 and the solar energy storage tank 3 through pipelines, and the output ports of the soil heat storage body 5 are respectively connected to the input ports of the surface sand temperature collector 4 and the solar energy storage tank 3 through pipelines.

[0052] The output port of the solar energy collection field 7 is connected to the input port of the solar energy storage tank 3 through a pipeline, and the input port of the solar energy collection field 7 is connected to the output port of the solar energy storage tank 3 through a pipeline.

[0053] The output port of the solar energy storage tank 3 is used to be connected to the input port of the heating and cooling terminal through a pipeline, and the input port of the solar energy storage tank 3 is used to be connected to the output port of the heating and cooling terminal through a pipeline.

[0054] In this embodiment, a coil is provided in the solar energy storage tank 3, and different media can be used under different temperature requirements. The tank body has heat preservation and cold preservation functions. The surface sand temperature collector 4 uses a thermoplastic pipe with good flexibility and low brittle temperature, preferably a high-temperature resistant polyethylene (PERT) pipe, which is laid on the surface of the ground into multiple U-shaped or circular loops, and finally converges into a collector with one outlet and one inlet, and then is covered with soft sandy soil. The heating and cooling terminal is a heating and cooling area, and the heating and cooling area can be flexibly combined with forms such as fan coils, radiators, and floor heating according to the situation to achieve the purpose of heating and cooling.

[0055] Exemplarily, the surface sand temperature collector 4 is arranged on the ground surface, making full use of the characteristics of sand with a small specific heat capacity, which has a fast temperature rise under solar radiation, a rapid temperature drop and a low temperature when there is no sun, so as to fully collect solar energy and the cold energy of the low-temperature environment and store it across seasons. It is particularly applicable to heating and cooling systems in open and sandy surface environments such as deserts and gobi, such as the application scenarios of heating and cooling for gobi facility agriculture.

[0056] In this embodiment, the solar energy collection field 7 collects solar energy and converts it into heat energy, and then inputs it into the solar energy storage tank 3 for storage. The surface sand temperature collector 4 collects the heat of the surface sand and outputs it to the soil heat storage body 5 for storage. When heating is required, the soil heat storage body 5 can transfer the heat to the solar energy storage tank 3. The solar energy storage tank 3 provides energy for the heating and cooling terminal and receives the energy returned by the terminal.

[0057] Exemplarily, in gobi facility agriculture, in summer, the solar energy collection field 7 and the surface sand temperature collector 4 work, and the collected energy is respectively stored in the solar energy storage tank 3 and the soil heat storage body 5. When heating is required in winter, the solar energy storage tank 3 delivers heat to the greenhouse heating terminal, and the soil heat storage body 5 can also supplement energy as needed to maintain a suitable temperature in the greenhouse, promote the growth of crops, and achieve stable production of gobi agriculture.

[0058] It can be concluded that, on the one hand, this embodiment makes full use of the surface sand temperature and solar energy, reduces the dependence on traditional high-energy-consuming equipment such as gas boilers, coal-fired boilers and electric boilers, reduces power consumption, and meets the requirements of sustainable development.

[0059] On the other hand, this embodiment solves the problem that solar energy is restricted by weather. Through the combination of the surface sand temperature collector 4 and the solar energy collection field 7, as well as the cold and heat double energy storage design of the soil heat storage body 5 and the soil heat storage body 6, heat can be fully stored in summer and cold can be fully stored in winter, and used for heating in winter and cooling in summer to achieve the continuity of heating and cooling. It reduces the construction and operation costs of solar energy, does not require large-scale infrastructure investment, greatly saves site costs, and also reduces the operation costs of auxiliary energy.

[0060] In an embodiment of the present disclosure, the double energy storage and double supply system based on surface temperature and solar energy further includes: an energy storage buffer tank 1 and an energy release buffer tank 2.

[0061] The output port of the energy storage buffer tank 1 is respectively connected to the input ports of the surface sand temperature collector 4, the soil heat storage body 5 and the energy release buffer tank 2 through pipelines, and the input port of the energy storage buffer tank 1 is respectively connected to the output ports of the surface sand temperature collector 4, the soil heat storage body 5 and the energy release buffer tank 2 through pipelines.

[0062] The output port of the energy-releasing buffer tank 2 is used to connect to the pipeline of the input port of the heating and cooling terminal, and the input port of the energy-releasing buffer tank 2 is used to connect to the pipeline of the output port of the heating and cooling terminal.

[0063] In this embodiment, coiled pipes are provided in both the energy-storing buffer tank 1 and the energy-releasing buffer tank 2, and different media can be used under different temperature requirements. The tank body has the functions of heat preservation and cold preservation. During energy storage, energy enters the energy-storing buffer tank 1 through the pipeline and is then distributed to the soil heat storage body 5 or the soil cold storage body 6 for storage. During energy release, the energy of the soil heat storage body 5 or the soil cold storage body 6 is output to the heating and cooling terminal through the energy-releasing buffer tank 2, and at the same time, the energy of each part can also flow back to the buffer tank for adjustment. The coiled pipes in the buffer tank increase the energy exchange area, and the heat preservation and cold preservation functions reduce energy loss. The energy-storing buffer tank 1 and the energy-releasing buffer tank 2 can be arranged at the central position close to the energy source and the heating and cooling terminal, which is convenient for pipeline connection and energy distribution.

[0064] Exemplarily, in the heating of a factory in the desert, when solar energy is sufficient during the day, the energy collected by the solar heat collection field 7 is stored in the solar energy storage tank 3 for energy supply. If the heating demand continues to increase and the energy in the solar energy storage tank 3 is insufficient, the energy in the soil heat storage body 5 can be transmitted to the energy-releasing buffer tank 2, and the energy is transported to the heating terminal through the energy-releasing buffer tank 2. At the same time, the energy output of the solar energy storage tank 3 can be stopped to ensure stable heating. The heat preservation and cold preservation functions of the buffer tank ensure that energy loss is reduced during storage and transmission, improve energy utilization efficiency, and reduce operating costs.

[0065] In this embodiment, the energy-storing buffer tank 1 and the energy-releasing buffer tank 2 are provided to be able to store heat and supply cold in summer, and store cold and supply heat in winter simultaneously, improve the annual utilization rate of the equipment, ensure stable heating and cooling, reduce energy loss, enhance energy utilization efficiency, reduce operating costs, and are especially suitable for heating and cooling of factories and other places in special environments such as deserts, with good practicability and economy.

[0066] In an embodiment of the present disclosure, the dual energy storage and dual supply system based on the surface temperature and solar energy further includes: a soil cold storage body 6.

[0067] The input ports of the soil cold storage body 6 are respectively connected to the pipelines of the output ports of the energy-storing buffer tank 1 and the energy-releasing buffer tank 2, and the output ports of the soil cold storage body 6 are respectively connected to the pipelines of the input ports of the energy-storing buffer tank 1 and the energy-releasing buffer tank 2.

[0068] In this embodiment, the soil heat storage body 5 and the soil cold storage body 6 are arranged in groups and regions, and pipes with relatively high heat exchange efficiency are laid in their bodies, such as metal pipes, PE pipes, PERT pipes, etc., and can be arranged horizontally or vertically in the soil in the form of U-shaped or sleeve-shaped, and the laid pipes are all below the frozen soil layer. The medium in the heat exchange pipes in the soil has no contact with the groundwater and only conducts energy exchange.

[0069] In this embodiment, when storing cold at a low ambient temperature, the energy in the energy storage buffer tank 1 is transmitted through pipelines to the soil cold storage body 6, enabling the soil cold storage body 6 to store cold energy. When cold energy needs to be released, the cold energy in the soil cold storage body 6 flows through pipelines to the energy release buffer tank 2 and is then transported to the areas requiring cooling. The soil heat storage body 5 and the soil cold storage body 6 are arranged in groups and divided into regions, and can be switched according to different seasons and demands. The highly efficient heat exchange pipelines laid inside the body can improve the heat exchange efficiency with the soil, ensuring the rapid storage and release of energy.

[0070] The soil cold storage body 6 in this embodiment works in cooperation with the energy storage buffer tank 1 and the energy release buffer tank 2 to effectively store and release cold energy, meet the cooling demand, and improve the flexibility of energy utilization. The soil heat storage body 5 and the soil cold storage body 6 are arranged in groups and divided into regions, and can be switched according to seasons and demands to adapt to different working conditions and enhance stability. The highly efficient pipelines laid inside the body improve the heat exchange efficiency, accelerate the energy storage and release speed, and reduce energy loss. Overall, the energy consumption is reduced, providing a reliable guarantee for heating and cooling, and is especially suitable for various application scenarios in special environments such as deserts.

[0071] In one embodiment of the present disclosure, the dual energy storage and dual supply system based on surface temperature and solar energy further includes: a medium circulation pump 11, an energy storage circulation pump 12, an energy release circulation pump 13, a solar energy circulation pump 14, and a heating and cooling circulation pump 15.

[0072] A medium circulation pump 11 is provided on the pipeline between the input port of the surface sand temperature collector 4 and the output port of the energy storage buffer tank 1.

[0073] An energy storage circulation pump 12 is provided on the pipeline between the output port of the energy storage buffer tank 1 and the input port of the soil heat storage body 5.

[0074] An energy release circulation pump 13 is provided on the pipeline between the input port of the soil heat storage body 5 and the output port of the energy release buffer tank 2.

[0075] A solar energy circulation pump 14 is provided on the pipeline between the input port of the solar energy collector field 7 and the output port of the solar energy storage tank 3.

[0076] A heating and cooling circulation pump 15 is provided on the pipeline between the output port of the solar energy storage tank 3 and the heating and cooling area entrance.

[0077] In this embodiment, the medium circulation pump 11 drives the medium to flow between the energy storage buffer tank 1 and the surface sand temperature collector 4, enabling the energy of the surface sand to be transferred to the buffer tank or flow from the buffer tank to the collector for allocation. The energy storage circulation pump 12 transports the energy in the energy storage buffer tank 1 to the soil heat storage body 5 for storage. The energy release circulation pump 13 transfers the energy of the soil heat storage body 5 to the energy release buffer tank 2 for release when needed. The solar energy circulation pump 14 drives the circulation of solar energy between the solar energy collection field 7 and the solar energy storage tank 3 to achieve the collection, storage, and allocation of solar energy. The heating and cooling circulation pump 15 is responsible for transporting the energy of the solar energy storage tank 3 to the heating and cooling areas to meet the demand and bringing back the excess energy at the end to the energy storage tank.

[0078] Exemplarily, the pump body is driven by a motor, and the rotational speed is adjusted to control the medium flow rate. An automatic control system is adopted to precisely control the start, stop, and operating parameters of each circulation pump based on sensor data such as temperature and pressure. In the heating and cooling of a scientific research base in the desert, during the day, the solar energy circulation pump 14 operates to store the solar energy collected by the solar energy collection field 7 into the solar energy storage tank 3. The medium circulation pump 11 transfers the surface energy to the energy storage buffer tank 1 at an appropriate time. The energy storage circulation pump 12 stores the energy of the buffer tank into the soil heat storage body 5. When heating or cooling is required, the heating and cooling circulation pump 15 starts to transport the energy to each area of the scientific research base. If there are changes in energy demand, the energy release circulation pump 13 can allocate the energy between the soil heat storage body 5 and the energy release buffer tank 2 as needed to ensure the stability and efficiency of heating and cooling.

[0079] The setting of each circulation pump in this embodiment helps to accurately regulate the energy flow, achieve efficient collection, storage, and distribution, ensure the stable and reliable heating and cooling, adapt to changes in energy demand, and improve the energy utilization efficiency.

[0080] In an embodiment of the present disclosure, the dual energy storage and dual supply system based on surface temperature and solar energy further includes: a water source heat pump unit 8.

[0081] The first side output port of the water source heat pump unit 8 is connected to the input port of the solar energy storage tank 3 through a pipeline, and the first side input port of the water source heat pump unit 8 is connected to the output port of the solar energy storage tank 3 through a pipeline.

[0082] The second side output port of the water source heat pump unit 8 is connected to the input port of the energy release buffer tank 2 through a pipeline, and the second side input port of the water source heat pump unit 8 is connected to the output port of the energy release buffer tank 2 through a pipeline.

[0083] The water source heat pump unit 8 is used for dual supply of heating and cooling.

[0084] In this embodiment, when heat supply is required, the water source heat pump unit 8 can extract the heat energy of the energy release buffer tank 2 from the second side and output the heat energy from the first side to the solar energy storage tank 3 for energy supply. When cooling is required, the cooling capacity of the soil cooling storage body 6 is preferentially utilized, and the cooling capacity is transported to the cooling end through the energy release buffer tank 2 for cooling. When the cooling capacity is insufficient, the water source heat pump unit 8 can extract the heat energy of the energy release buffer tank 2 to the solar energy storage tank 3, cool the medium of the energy release buffer tank 2 and then transport it to the cooling end for cooling, and at the same time release the extracted heat to the soil heat storage body 5 through the solar energy storage tank 3.

[0085] The water source heat pump unit 8 in this embodiment utilizes heat pump technology to achieve efficient energy transfer, realizes the function of dual heat and cold supply, and can meet different energy requirements through pipeline connection with the solar energy storage tank 3 and the energy release buffer tank 2, and can effectively respond to both winter heating and summer cooling. In addition, the water source heat pump unit 8 in this embodiment can store the cooling capacity in the soil cooling storage body 6 while heating, and store the heat in the soil heat storage body 5 while cooling, greatly improving the energy utilization rate, flexibility and adaptability, and can adjust the working mode in time according to the actual heating or cooling demand, so that the energy is efficiently transmitted and utilized in the system. This design can also effectively integrate the energy related to solar energy and surface temperature, optimize the operation efficiency of the entire dual storage and dual supply system, and reduce energy waste.

[0086] In an embodiment of the present disclosure, the dual storage and dual supply system based on surface temperature and solar energy further includes: a water source heat pump second side circulation pump 16 and a water source heat pump first side circulation pump 17.

[0087] A water source heat pump second side circulation pump 16 is arranged on the pipeline between the second side input port of the water source heat pump unit 8 and the output port of the energy release buffer tank 2.

[0088] A water source heat pump first side circulation pump 17 is arranged on the pipeline between the first side input port of the water source heat pump unit 8 and the output port of the solar energy storage tank 3.

[0089] In this embodiment, the water source heat pump first side circulation pump 17 controls the circulation of the medium between the solar energy storage tank 3 and the first side of the water source heat pump unit 8. The water source heat pump second side circulation pump 16 controls the circulation of the medium between the second side of the water source heat pump unit 8 and the energy release buffer tank 2.

[0090] When high-temperature energy needs to be transported to the solar energy storage tank 3, the second-side circulation pump 16 of the water source heat pump operates to convert the low-temperature energy in the energy release buffer tank 2 into high-temperature energy, transmit the high-temperature energy to the first side of the water source heat pump unit 8, and store the low-temperature medium back into the energy release buffer tank 2. At the same time, the first-side circulation pump 17 of the water source heat pump transmits the received high-temperature energy to the solar energy storage tank 3, and the solar energy storage tank 3 provides heating. At this time, the low-temperature medium stored in the energy release buffer tank 2 on the other side can provide an energy source for cooling.

[0091] The second-side circulation pump 16 of the water source heat pump in this embodiment helps to efficiently extract the low-temperature energy in the energy release buffer tank 2, ensure the energy input of the water source heat pump unit 8, and promote energy conversion. The first-side circulation pump 17 of the water source heat pump realizes the efficient circulation of high-temperature energy between the unit and the solar energy storage tank 3, stably supplies energy for heating and cooling, and is convenient for energy regulation. The two work together to improve the energy transfer efficiency.

[0092] As Figure 2 shown, in an embodiment of the present disclosure, the dual energy storage and dual supply system based on the surface temperature and solar energy further includes: a control module, a meteorological monitoring module, and a soil monitoring module.

[0093] The control module is respectively connected to the meteorological monitoring module and the soil monitoring module.

[0094] The meteorological monitoring module is configured to collect meteorological data, and the soil monitoring module is configured to collect soil information.

[0095] The control module is configured to control the working states of the water source heat pump unit 8, the medium circulation pump 11, the energy storage circulation pump 12, the energy release circulation pump 13, the solar energy circulation pump 14, the heating and cooling circulation pump 15, the second-side circulation pump 16 of the water source heat pump, and the first-side circulation pump 17 of the water source heat pump according to the meteorological data and soil information.

[0096] In this embodiment, the meteorological monitoring module includes:

[0097] A temperature and humidity sensor, a rainfall sensor, and a light intensity sensor.

[0098] The temperature and humidity sensor, the rainfall sensor, and the light intensity sensor are all connected to the control module.

[0099] In this embodiment, the soil monitoring module includes:

[0100] A soil temperature sensor and a soil humidity sensor.

[0101] The soil temperature sensor and the soil humidity sensor are all connected to the control module.

[0102] In this embodiment, the temperature and humidity sensor, rainfall sensor, and light intensity sensor in the meteorological monitoring module collect meteorological data in real time, and the soil temperature sensor and soil humidity sensor in the soil monitoring module collect soil information. These data are transmitted to the control module. The control module analyzes and processes the received meteorological data and soil information, judges the current weather conditions and soil status, and then controls the water source heat pump unit 8 and each circulation pump (medium circulation pump 11, energy storage circulation pump 12, energy release circulation pump 13, solar energy circulation pump 14, heating and cooling circulation pump 15, water source heat pump second-side circulation pump 16, and water source heat pump first-side circulation pump 17).

[0103] Exemplarily, when there is sufficient sunlight on a sunny day, the control module can adjust the solar energy circulation pump 14 to increase the flow rate and store more solar energy in the solar energy storage tank 3. When the soil temperature is relatively high, relevant circulation pumps can be adjusted to better utilize the surface sand temperature collector 4 to supplement energy for the soil heat storage body 5.

[0104] In this embodiment, the temperature and humidity sensor, rainfall sensor, and light intensity sensor provide meteorological data for the system, enabling the control module to accurately regulate the water source heat pump unit 8 and each circulation pump, improving energy utilization efficiency. The soil temperature sensor and soil humidity sensor assist the control module in better managing the soil heat storage body, etc., ensuring the stable operation of the system, reducing energy consumption and costs, adapting to special environmental changes, and ensuring heating and cooling demands.

[0105] As Figure 2 shown, in an embodiment of the present disclosure, the dual energy storage and dual supply system based on surface temperature and solar energy further includes: a control valve module and an energy demand monitoring module.

[0106] The control module is respectively connected to the energy demand monitoring module and the control valve module.

[0107] The energy demand monitoring module is arranged at the heating and cooling end and is configured to monitor the energy demand data at the heating and cooling end. The control valve module is arranged on multiple pipelines.

[0108] The control module is further configured to control the opening degree of the control valve module according to the energy demand data at the heating and cooling end.

[0109] In this embodiment, the control valve module includes: surface temperature control valve 1 (21), surface temperature control valve 2 (22), heat storage switching control valve 1 (23), heat storage switching control valve 2 (24), heat storage control valve 1 (25), heat storage control valve 2 (26), heat release control valve 1 (27), heat release control valve 2 (28), cold storage control valve 1 (29), cold storage control valve 2 (30), cold release control valve 1 (31), cold release control valve 2 (32), cooling supply control valve 1 (33), cooling supply control valve 2 (34), heating supply control valve 1 (35), heating supply control valve 2 (36), solar heat collection control valve 1 (37), and solar heat collection control valve 2 (38).

[0110] A surface temperature control valve 1 (21) is provided on the pipeline between the input port of the energy storage buffer tank 1 and the output port of the soil heat storage body 5, and a heat storage control valve 1 (25) is provided on the pipeline between the surface temperature control valve 1 (21) and the output port of the soil heat storage body 5.

[0111] A surface temperature control valve 2 (22) is provided on the pipeline between the output port of the energy storage buffer tank 1 and the energy storage circulation pump 12, and a heat storage control valve 2 (26) is provided on the pipeline between the energy storage circulation pump 12 and the input port of the soil heat storage body 5.

[0112] A first branch pipeline is led out from the pipeline between the surface temperature control valve 2 (22) and the energy storage circulation pump 12 and connected to the output port of the solar energy storage tank 3, and a heat storage switching control valve 1 (23) is provided on the first branch pipeline.

[0113] A second branch pipeline is led out from the pipeline between the surface temperature control valve 1 (21) and the heat storage control valve 1 (25) and connected to the input port of the solar energy storage tank 3, and a heat storage switching control valve 2 (24) is provided on the second branch pipeline.

[0114] A third branch pipeline is led out from the pipeline between the heat storage control valve 1 (25) and the output port of the soil heat storage body 5 and connected to the input port of the energy release buffer tank 2, and a heat release control valve 1 (27) is provided on the third branch pipeline.

[0115] A fourth branch pipeline is led out from the pipeline between the heat storage control valve 2 (26) and the input port of the soil heat storage body 5 and connected to the output port of the energy release buffer tank 2, and a heat release control valve 2 (28) is provided on the fourth branch pipeline.

[0116] A fifth branch pipeline is led out from the pipeline between the energy storage circulation pump 12 and the heat storage control valve 2 (26) and connected to the fourth branch pipeline, and a cold storage control valve 1 (29) and a cold release control valve 1 (31) are provided on the fifth branch pipeline.

[0117] A sixth branch pipeline is led out from the pipeline between the surface temperature No. 1 control valve 21 and the heat storage No. 1 control valve 25 and connected to the third branch pipeline. A cold storage No. 2 control valve 30 and a cold release No. 2 control valve 32 are arranged on the sixth branch pipeline.

[0118] A seventh branch pipeline is led out from the pipeline between the cold storage No. 1 control valve 29 and the cold release No. 1 control valve 31 and connected to the input port of the soil cold storage body 6.

[0119] An eighth branch pipeline is led out from the pipeline between the cold storage No. 2 control valve 30 and the cold release No. 2 control valve 32 and connected to the output port of the soil cold storage body 6.

[0120] A heating No. 1 control valve 35 is arranged on the pipeline between the input port of the solar energy storage tank 3 and the output port of the heating and cooling terminal, and a heating No. 2 control valve 36 is arranged on the pipeline between the output port of the solar energy storage tank 3 and the input port of the heating and cooling terminal.

[0121] A ninth branch pipeline is led out from the pipeline between the output port of the heating and cooling terminal and the heating No. 1 control valve 35 and connected to the input port of the energy release buffer tank 2. A cooling No. 1 control valve 33 is arranged on the ninth branch pipeline. A tenth branch pipeline is led out from the pipeline between the input port of the heating and cooling terminal and the heating No. 2 control valve 36 and connected to the output port of the energy release buffer tank 2. A cooling No. 2 control valve 34 is arranged on the tenth branch pipeline.

[0122] A solar heat collection No. 1 control valve 37 is arranged on the pipeline between the output port of the solar heat collection field 7 and the input port of the solar energy storage tank 3, and a solar heat collection No. 2 control valve 38 is arranged on the pipeline between the solar circulation pump 14 and the output port of the solar energy storage tank 3.

[0123] Exemplarily, the energy storage process includes a cold storage mode and a heat storage mode.

[0124] For the cold storage mode: The surface cold quantity absorbed by the surface sand temperature collector 4 is transmitted to the medium in the pipeline. The medium circulation pump 11 enables the medium to circulate in the pipeline, and the cold quantity is stored in the energy storage buffer tank 1. According to the temperature of the medium in the energy storage buffer tank 1, the control module can control the start and stop states of the energy storage circulation pump 12, and store the cold quantity in the energy storage buffer tank 1 into the soil cold storage body 6 through the medium circulation, completing the cold storage process. During this process, the surface temperature No. 1 control valve 21, the surface temperature No. 2 control valve 22, the cold storage No. 1 control valve 29, and the cold storage No. 2 control valve 30 are in the open state, and the heat storage switching No. 1 control valve 23, the heat storage switching No. 2 control valve 24, the heat storage No. 1 control valve 25, the heat storage No. 2 control valve 26, the cold release No. 1 control valve 31, and the cold release No. 2 control valve 32 are in the closed state.

[0125] For the heat storage mode: The surface heat absorbed by the surface sand temperature collector 4 is transmitted to the medium in the pipeline. The medium circulation pump 11 enables the medium to circulate in the pipeline, and the heat is stored in the energy storage buffer tank 1. The solar heat absorbed by the solar heat collection field 7 makes the medium circulate in the pipeline through the solar circulation pump 14. The solar heat collection control valve No. 37 and the solar heat collection control valve No. 38 are opened, and the heat is stored in the solar energy storage tank 3. During the two heat storage processes based on the surface sand temperature and the solar energy temperature, the heat storage switching control valve No. 23 and the heat storage switching control valve No. 24 are in the closed state. The medium temperatures in the energy storage buffer tank 1 and the solar energy storage tank 3 are monitored in real time. When the medium in the energy storage buffer tank 1 reaches the storage temperature, the surface temperature control valve No. 21, the surface temperature control valve No. 22, the heat storage control valve No. 25, and the heat storage control valve No. 26 are opened, and the energy storage circulation pump 12 works. The medium temperature is stored in the soil heat storage body 5 through circulation. When the medium in the solar energy storage tank 3 reaches the storage temperature, the surface temperature control valve No. 21, the surface temperature control valve No. 22, the solar heat collection control valve No. 37, and the solar heat collection control valve No. 38 are closed, the solar circulation pump 14 stops, the heat storage switching control valve No. 23, the heat storage switching control valve No. 24, the heat storage control valve No. 25, and the heat storage control valve No. 26 are opened, and the energy storage circulation pump 12 works. The medium temperature is stored in the soil heat storage body 5 through circulation. When both the energy storage buffer tank 1 and the solar energy storage tank 3 reach the storage temperature, the temperature of the solar energy storage tank 3 is stored preferentially.

[0126] Exemplarily, the energy supply process includes a cooling mode and a heating mode.

[0127] For the cooling mode: The cooling control valve No. 31 and the cooling control valve No. 32 are opened, the cold storage control valve No. 29 and the cold storage control valve No. 30 are closed, and the energy release circulation pump 13 works. The cold stored in the soil cold storage body 6 is transferred to the energy release buffer tank 2 through the medium circulation. When the cooling temperature is reached, the cooling control valve No. 33 and the cooling control valve No. 34 are opened, and the heating and cooling circulation pump 15 works to send the cold to the area that needs cooling. When the cold in the soil cold storage body 6 is insufficient, the water source heat pump unit 8 cools the energy release buffer tank 2, and continues to supply cooling through the energy release buffer tank 2.

[0128] For the heating mode: When the heating season arrives, the solar heat collection field 7 operates to absorb the heat of sunlight. Through the solar circulation pump 14, the heat is transferred to the solar energy storage tank 3 to raise the temperature of the medium. At the same time, the heat release No. 1 control valve 27 and the heat release No. 2 control valve 28 are opened, and the energy release circulation pump 13 operates to transfer the heat in the soil heat storage body 5 to the energy release buffer tank 2 through the medium circulation. When heating is required, the solar energy storage tank 3 is preferentially used. The cooling supply No. 1 control valve 33 and the cooling supply No. 2 control valve 34 are closed, the heating supply No. 1 control valve 35 and the heating supply No. 2 control valve 36 are opened, and the heating and cooling circulation pump 15 operates to send the heat to the area where heating is required. When the temperature of the solar energy storage tank 3 fails to reach the heating temperature, the water source heat pump unit 8, the water source heat pump second-side circulation pump 16, and the water source heat pump first-side circulation pump 17 start to operate. The higher-quality heat source in the energy release buffer tank 2 is lifted by the water source heat pump unit 8 and extracted into the solar energy storage tank 3 to always keep the temperature of the solar energy storage tank 3 meeting the heating demand.

[0129] Exemplarily, in the application scenario of a factory in the desert, the energy demand monitoring module monitors the energy demand data at the end of the factory's heating and cooling in real time and transmits the data to the control module. For example, in summer, when the temperature in the factory rises, the energy demand monitoring module detects an increase in the cooling demand. After receiving the data, the control module increases the opening degrees of the cooling supply No. 1 control valve 33 and the cooling supply No. 2 control valve 34. At the same time, the cooling release No. 1 control valve 31 and the cooling release No. 2 control valve 32 are opened, and the cold storage No. 1 control valve 29 and the cold storage No. 2 control valve 30 are closed. The energy release circulation pump 13 is allowed to operate to transfer the cold quantity in the soil cold storage body 6 to the energy release buffer tank 2, and then it is transported to the factory cooling area by the heating and cooling circulation pump 15. If the cold quantity in the soil cold storage body 6 is insufficient, the control module adjusts the water source heat pump unit 8 to cool the energy release buffer tank 2 to continue cooling. In winter, when it is detected that the heating demand increases, the control module preferentially increases the opening degrees of the heating supply No. 1 control valve 35 and the heating supply No. 2 control valve 36 and uses the solar energy storage tank 3 for heating. If the temperature is insufficient, equipment such as the water source heat pump unit 8 is started to raise the heat source in the energy release buffer tank 2 to the solar energy storage tank 3.

[0130] In this embodiment, the energy demand data can adopt the heat / cold load method and comprehensively calculate by considering parameters such as the area of the heating / cooling area, the heat transfer coefficient of the enclosure structure (walls, roofs, windows, etc.), and the indoor-outdoor temperature difference.

[0131] Exemplarily, the energy demand monitoring module monitors parameters such as temperature and flow rate at the heating and cooling terminals in real time, and combines with the changes in the indoor and outdoor environments to continuously adjust the calculation of energy demand. For example, when the outdoor temperature suddenly rises or falls, the heating load or cooling load is recalculated according to the real-time monitoring data and the above calculation method, and then the opening degree of the control valve module and the operating states of various devices are adjusted to meet the actual energy demand. At the same time, considering the changes in the usage conditions of the building (such as the increase or decrease in the number of people, the opening or closing of equipment, etc.), the calculation of energy demand and the operation strategy of the system are adjusted in a timely manner.

[0132] In this embodiment, the control module combines the energy demand monitoring module and multiple control valves to accurately regulate the system operation. The control module can adjust the opening degree of the control valve according to the energy demand, enabling the solar energy storage tank 3, the soil heat storage body 5, and the soil cooling body 6 to supply energy efficiently. Improve energy utilization efficiency and reduce energy consumption costs. Adapt to the changes in the indoor and outdoor environments and the usage conditions of the building, and ensure stable and reliable heating and cooling.

[0133] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the present disclosure.

Claims

1. A dual energy storage and dual supply system based on surface temperature and solar energy, characterized in that, Including: A solar energy storage tank (3), a surface sand temperature collector (4), a soil heat storage body (5), and a solar heat collection field (7); The input ports of the soil heat storage body (5) are respectively connected to the output ports of the surface sand temperature collector (4) and the solar energy storage tank (3) through pipelines, and the output ports of the soil heat storage body (5) are respectively connected to the input ports of the surface sand temperature collector (4) and the solar energy storage tank (3) through pipelines; The output port of the solar heat collection field (7) is connected to the input port of the solar energy storage tank (3) through a pipeline, and the input port of the solar heat collection field (7) is connected to the output port of the solar energy storage tank (3) through a pipeline; The output port of the solar energy storage tank (3) is used to be connected to the input port of the heating and cooling terminal through a pipeline, and the input port of the solar energy storage tank (3) is used to be connected to the output port of the heating and cooling terminal through a pipeline.

2. The dual energy storage and dual supply system based on surface temperature and solar energy according to claim 1, characterized in that, It further includes: An energy storage buffer tank (1) and a discharging buffer tank (2); The output port of the energy storage buffer tank (1) is respectively connected to the input ports of the surface sand temperature collector (4), the soil heat storage body (5), and the discharging buffer tank (2) through pipelines, and the input port of the energy storage buffer tank (1) is respectively connected to the output ports of the surface sand temperature collector (4), the soil heat storage body (5), and the discharging buffer tank (2) through pipelines; The output port of the discharging buffer tank (2) is used to be connected to the input port of the heating and cooling terminal through a pipeline, and the input port of the discharging buffer tank (2) is used to be connected to the output port of the heating and cooling terminal through a pipeline.

3. The dual energy storage and dual supply system based on surface temperature and solar energy according to claim 2, wherein It further includes: A medium circulation pump (11), an energy storage circulation pump (12), a discharging circulation pump (13), a solar circulation pump (14), and a heating and cooling circulation pump (15); A medium circulation pump (11) is arranged on the pipeline between the input port of the surface sand temperature collector (4) and the output port of the energy storage buffer tank (1); An energy storage circulation pump (12) is arranged on the pipeline between the output port of the energy storage buffer tank (1) and the input port of the soil heat storage body (5); A discharging circulation pump (13) is arranged on the pipeline between the input port of the soil heat storage body (5) and the output port of the discharging buffer tank (2); A solar circulation pump (14) is arranged on the pipeline between the input port of the solar heat collection field (7) and the output port of the solar energy storage tank (3); A heating and cooling circulation pump (15) is arranged on the pipeline between the output port of the solar energy storage tank (3) and the heating and cooling area inlet.

4. The dual energy storage and dual supply system based on surface temperature and solar energy according to claim 3, wherein It further includes: A water source heat pump unit (8); The first-side output port of the water source heat pump unit (8) is connected to the input port of the solar energy storage tank (3) through a pipeline, and the first-side input port of the water source heat pump unit (8) is connected to the output port of the solar energy storage tank (3) through a pipeline; The second-side output port of the water source heat pump unit (8) is connected to the input port of the discharging buffer tank (2) through a pipeline, and the second-side input port of the water source heat pump unit (8) is connected to the output port of the discharging buffer tank (2) through a pipeline; The water source heat pump unit (8) is used for both heating and cooling supply.

5. The dual energy storage and dual supply system based on surface temperature and solar energy according to claim 4, wherein It further includes: The second-side circulation pump (16) of the water source heat pump and the first-side circulation pump (17) of the water source heat pump; A second-side circulation pump (16) of the water source heat pump is provided on the pipeline between the second-side input port of the water source heat pump unit (8) and the output port of the energy-releasing buffer tank (2); A first-side circulation pump (17) of the water source heat pump is provided on the pipeline between the first-side input port of the water source heat pump unit (8) and the output port of the solar energy storage tank (3).

6. The dual energy storage and dual supply system based on surface temperature and solar energy according to claim 5, wherein It further includes: A control module, a meteorological monitoring module, and a soil monitoring module; The control module is respectively connected to the meteorological monitoring module and the soil monitoring module; The meteorological monitoring module is configured to collect meteorological data, and the soil monitoring module is configured to collect soil information; The control module is configured to control the operating states of the water source heat pump unit (8), the medium circulation pump (11), the energy storage circulation pump (12), the energy-releasing circulation pump (13), the solar energy circulation pump (14), the heating and cooling circulation pump (15), the second-side circulation pump (16) of the water source heat pump, and the first-side circulation pump (17) of the water source heat pump according to the meteorological data and the soil information.

7. The dual-energy storage and dual-supply system based on surface temperature and solar energy according to claim 6, wherein, It further includes: A control valve module and an energy demand monitoring module; The control module is respectively connected to the energy demand monitoring module and the control valve module; The energy demand monitoring module is arranged at the heating and cooling end and is configured to monitor the energy demand data of the heating and cooling end; the control valve module is arranged on multiple pipelines; The control module is further configured to control the opening degree of the control valve module according to the energy demand data of the heating and cooling end.

8. The dual energy storage and dual supply system based on surface temperature and solar energy according to claim 6, wherein, The meteorological monitoring module includes: A temperature and humidity sensor, a rain sensor, and a light intensity sensor; The temperature and humidity sensor, the rain sensor, and the light intensity sensor are all connected to the control module.

9. The dual-energy storage and dual-supply system based on surface temperature and solar energy according to claim 6, wherein The soil monitoring module includes: A soil temperature sensor and a soil humidity sensor; The soil temperature sensor and the soil humidity sensor are all connected to the control module.

10. The dual energy storage and dual supply system based on surface temperature and solar energy according to claim 2, characterized in that, It further includes: A soil cold storage body (6); The input port of the soil cold storage body (6) is respectively connected to the output ports of the energy storage buffer tank (1) and the energy-releasing buffer tank (2) through pipelines, and the output port of the soil cold storage body (6) is respectively connected to the input ports of the energy storage buffer tank (1) and the energy-releasing buffer tank (2) through pipelines.

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