Outdoor swimming pool heat supply method and device

Abstract

The invention relates to the technical field of swimming pool heating, and discloses an outdoor swimming pool heat supply method, which comprises the following steps of: inputting local meteorological information of a swimming pool, to-be-selected heat supply equipment, unit initial investment cost and key operation parameters of the to-be-selected heat supply equipment, and boundary dimension and local electricity price of the swimming pool to calculate a heat supply demand; different heat supply combinations are obtained by combining the to-be-selected heat supply equipment, energy consumption, carbon emission, operation cost and life cycle cost of the different heat supply combinations are calculated according to heat supply requirements, the heat supply combinations are optimized, the heat supply combination with the maximum benefit is selected from the optimized heat supply combinations, and the heat supply efficiency is improved. Therefore, a heat supply mode which is most suitable for the environment, low in cost and environmentally friendly can be decided according to the heating requirement of the swimming pool. The invention further discloses an outdoor swimming pool heat supply device for achieving the method.

Description

Technical Field

[0001] The invention relates to the technical field of swimming pool heating, and in particular to a heating method and device for an outdoor swimming pool. Background Art

[0002] Swimming is one of the most popular sports. The lower outdoor temperature directly causes the temperature of the outdoor swimming pool to be lower than the thermal comfort temperature (28°C), and even causes the outdoor swimming pool facilities to be out of use. Therefore, some technologies have been applied to outdoor swimming pools to maintain the pool water temperature within the thermal comfort range. However, the current heating technology is single, and although it can provide heat for outdoor swimming pools, indicators such as energy consumption, operating costs and carbon emissions still need to be reduced.

[0003] The prior art discloses a temperature control method and swimming pool equipment for a swimming pool. By collecting the associated information of the swimming pool and the preset information of the heat pump unit, a temperature heating model can be established through the associated information and the preset information. The temperature to be heated is input into the temperature heating model. The temperature heating model can establish multiple groups of heating modes with corresponding energy consumption and time required to heat to the temperature according to the time and energy consumption currently used for heating to the temperature. The startup information and the associated information of the current swimming pool are substituted into the temperature heating model to generate multiple groups of heating modes and send each of the heating modes to the terminal for user selection. When the user selects one of the heating modes, the swimming pool is heated according to the heating mode; when the heating mode is not selected, one of the heating modes is selected according to the preset rules to heat the swimming pool. This patent only uses a heat pump to heat the swimming pool, and the heating technology is single. Although it can provide heat for an outdoor swimming pool, indicators such as energy consumption, operating costs and carbon emissions still need to be reduced. Summary of the invention

[0004] The object of the present invention is to provide an outdoor swimming pool heating method and device, so as to achieve the outdoor swimming pool heating using the most suitable and low-cost, environmentally friendly heating method.

[0005] In order to achieve the above object, the present invention provides a method for heating an outdoor swimming pool, comprising:

[0006] S1: Obtain the local meteorological information of the swimming pool, the heating equipment to be selected, the unit initial investment cost and key operating parameters of the heating equipment to be selected, the size of the swimming pool and the local electricity price;

[0007] S2: Calculate heating demand based on local meteorological information and the dimensions of the swimming pool;

[0008] S3: Combining the selected heating equipment to obtain multiple heating combinations;

[0009] S4: Calculate the energy consumption, carbon emissions, operating costs, and life cycle costs of each heating combination based on heating demand, key operating parameters of the selected heating equipment, and local electricity prices;

[0010] S5: Optimize each heating combination through optimization algorithm with the goal of minimum energy consumption, minimum operating cost, minimum unit initial investment cost, minimum life cycle cost and minimum carbon emission;

[0011] S6: using a decision-making method to compare the optimization results of the various heating combinations obtained in step S5, and selecting the heating combination with the maximum benefit.

[0012] Furthermore, in step S2, the worst weather condition is selected according to local meteorological information to calculate the maximum heating demand.

[0013] Furthermore, in step S2, an outdoor swimming pool heat exchange model is established according to whether the swimming pool is provided with an insulation layer, and the heating demand is calculated by the outdoor swimming pool heat exchange model.

[0014] Furthermore, the outdoor swimming pool heat exchange model obtains the heat change process of the swimming pool by calculating heat conduction, convection heat transfer, and radiation heat transfer according to local meteorological information and the external dimensions of the swimming pool, and calculates the heating demand according to the heat change process of the swimming pool and the actual use demand of the swimming pool.

[0015] Furthermore, in step S4, the required heating capacity of the swimming pool is obtained according to the heating demand, the predetermined preheating cycle and the water temperature distribution of the swimming pool during the shutdown period, and the energy consumption, carbon emissions, operating costs and life cycle costs of each heating combination are calculated according to the required heating capacity of the swimming pool.

[0016] Furthermore, in step S3, the heating combination adopts a renewable energy heating combination.

[0017] Furthermore, the heating combination includes a solar water heating system, a heat pump system, a photovoltaic heat pump system, a solar photovoltaic and thermal system, a solar heat pump system, a hydrogen heat pump system, and a solar-hydrogen energy system.

[0018] Further, in step S4, if the heating combination is a solar water heating system, the solar collector model, the hot water storage tank model, and the water pump model are used to calculate the energy consumption, carbon emissions, operating costs, and life cycle costs;

[0019] If the heating combination is a heat pump system, the heat pump model and the hot water storage tank model are used to calculate energy consumption, carbon emissions, operating costs and life cycle costs;

[0020] If the heating combination is a photovoltaic heat pump system, the photovoltaic model, heat pump model, and hot water storage tank model are used to calculate energy consumption, carbon emissions, operating costs, and life cycle costs;

[0021] If the heating combination is a solar photovoltaic and thermal system, the photovoltaic model, solar collector model, hot water storage tank model, and water pump model are used to calculate energy consumption, carbon emissions, operating costs, and life cycle costs;

[0022] If the heating combination is a solar heat pump system, the solar collector model, heat pump model, and hot water storage tank model are used to calculate energy consumption, carbon emissions, operating costs, and life cycle costs;

[0023] If the heating combination is a hydrogen heat pump system, the hydrogen production device model, fuel cell model, heat pump model, and hot water storage tank model are used to calculate energy consumption, carbon emissions, operating costs, and life cycle costs;

[0024] If the heating combination is a solar-hydrogen system, the hydrogen production device model, fuel cell model, solar collector model, hot water storage tank model, and water pump model are used to calculate energy consumption, carbon emissions, operating costs, and life cycle costs.

[0025] Furthermore, in step S5, the optimization algorithm is a genetic algorithm.

[0026] The present invention also provides an outdoor swimming pool heating device, comprising:

[0027] An input module is used to obtain local meteorological information of the swimming pool, the heating equipment to be selected, the unit initial investment cost and key operating parameters of the heating equipment to be selected, the size of the swimming pool and the local electricity price;

[0028] The processing module is used to calculate according to the local meteorological information and the outer dimensions of the swimming pool; and to combine the selected heating equipment to obtain multiple heating combinations; and to calculate the energy consumption, carbon emissions, operating costs, and life cycle costs of each heating combination according to the heating demand, the key operating parameters of the selected heating equipment, and the local electricity price; and then optimize each heating combination with the goal of minimum energy consumption, minimum operating cost, minimum unit initial investment cost, minimum life cycle cost, and minimum carbon emissions through an optimization algorithm; and to compare the optimization results of each heating combination using a decision-making method to select the heating combination with the maximum benefit;

[0029] The output module is used to output the heat supply combination with the maximum benefit and the unit initial investment cost, energy consumption, carbon emission, operation cost and life cycle cost of the corresponding combination.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The present invention calculates the heating demand by inputting local meteorological information of the swimming pool, the heating equipment to be selected, the unit initial investment cost and key operating parameters of the heating equipment to be selected, the external dimensions of the swimming pool and the local electricity price, and obtains different heating combinations by combining the heating equipment to be selected. The energy consumption, carbon emissions, operating costs and life cycle costs of different heating combinations are calculated according to the heating demand, and the heating combinations are optimized. The heating combination with the maximum benefit is selected from the optimized heating combinations, so that the most suitable heating method for the environment with low cost and environmental protection can be decided according to the heating needs of the swimming pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 4 is a flow chart of an outdoor swimming pool heating method according to an embodiment of the present invention.

[0033] Figure 2 It is a principle block diagram of an outdoor swimming pool heating device according to an embodiment of the present invention.

[0034] Figure 3 Schematic diagram of an outdoor swimming pool heating device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] Embodiment 1

[0037] like Figure 1 As shown, a method for heating an outdoor swimming pool according to a preferred embodiment of the present invention comprises:

[0038] S1: Obtain the local meteorological information of the swimming pool, the heating equipment to be selected, the unit initial investment cost and key operating parameters of the heating equipment to be selected, the size of the swimming pool and the local electricity price;

[0039] S2: Calculate heating demand based on local meteorological information and the dimensions of the swimming pool;

[0040] S3: Combining the selected heating equipment to obtain multiple heating combinations;

[0041] S4: Calculate the energy consumption, carbon emissions, operating costs, and life cycle costs of each heating combination based on heating demand, key operating parameters of the selected heating equipment, and local electricity prices;

[0042] S5: Optimize each heating combination through optimization algorithm with the goal of minimum energy consumption, minimum operating cost, minimum unit initial investment cost, minimum life cycle cost and minimum carbon emission;

[0043] S6: using a decision-making method to compare the optimization results of the various heating combinations obtained in step S5, and selecting the heating combination with the maximum benefit.

[0044] This embodiment calculates the heating demand by inputting the local meteorological information of the swimming pool, the heating equipment to be selected, the unit initial investment cost and key operating parameters of the heating equipment to be selected, the outer dimensions of the swimming pool and the local electricity price, and obtains different heating combinations by combining the heating equipment to be selected. The energy consumption, carbon emissions, operating costs and life cycle costs of different heating combinations are calculated according to the heating demand, and the heating combinations are optimized. The heating combination with the maximum benefit is selected from the optimized heating combinations, so that the most suitable heating method for the environment, low cost and environmental protection can be decided according to the heating needs of the swimming pool.

[0045] Specifically, in step S1, local meteorological information includes local meteorological parameters such as wind speed, relative humidity, solar radiation, and outdoor temperature; the heating equipment to be selected includes solar collectors, photovoltaic panels, hot water storage tanks, hydrogen production devices, etc.; the key operating parameters of the heating equipment to be selected include heat exchange fluid flow, heating temperature, etc. The outer dimensions of the swimming pool include the length, width, and height of the outdoor swimming pool. The local electricity price includes the electricity price under peak and valley conditions.

[0046] Furthermore, in step S2 of this embodiment, the worst weather conditions are selected according to local meteorological information to calculate the maximum heating demand. And in step S2, an outdoor swimming pool heat exchange model is established according to whether the swimming pool is provided with an insulation layer, and the heating demand is calculated by the outdoor swimming pool heat exchange model. When the outdoor swimming pool has an insulation layer, the outdoor swimming pool heat exchange model with the insulation layer is adopted; when the outdoor swimming pool has no insulation layer, the outdoor swimming pool heat exchange model without the insulation layer is adopted. The outdoor swimming pool heat exchange model obtains the swimming pool heat change process by calculating heat conduction, convection heat exchange, and radiation heat exchange according to the local meteorological information and the outer dimensions of the swimming pool, and calculates the heating demand according to the swimming pool heat change process and the actual use demand of the swimming pool. In step S4, the heating capacity required by the swimming pool is obtained according to the heating demand, the predetermined preheating cycle, and the water temperature distribution of the swimming pool during the closure period, and the energy consumption, carbon emissions, operating costs, and life cycle costs of each heating combination are calculated according to the heating capacity required by the swimming pool, wherein the maximum daily demand of the swimming pool is obtained according to the operating cost.

[0047] Furthermore, in step S3 of this embodiment, the heating combination adopts a renewable energy heating combination. Therefore, this embodiment adopts renewable energy technology to heat the outdoor swimming pool to improve environmental protection. Therefore, the heating method of this embodiment comprehensively evaluates multiple renewable energy technologies and decides on the most environmentally friendly outdoor swimming pool heating method with low cost and more environmental protection.

[0048] Specifically, the heating combination includes a solar water heating system, a heat pump system, a photovoltaic heat pump system, a solar photovoltaic thermal system, a solar heat pump system, a hydrogen heat pump system, and a solar-hydrogen energy system. In step S4, if the heating combination is a solar water heating system, a solar collector model, a hot water storage tank model, and a water pump model are used to calculate energy consumption, carbon emissions, operating costs, and life cycle costs; if the heating combination is a heat pump system, a heat pump model and a hot water storage tank model are used to calculate energy consumption, carbon emissions, operating costs, and life cycle costs; if the heating combination is a photovoltaic heat pump system, a photovoltaic model, a heat pump model, and a hot water storage tank model are used to calculate energy consumption, carbon emissions, operating costs, and life cycle costs; if the heating combination is a solar photovoltaic thermal system, a photovoltaic model, a solar collector model, a hot water storage tank model, and a water pump model are used to calculate energy consumption. , carbon emissions, operating costs and life cycle costs; if the heating combination is a solar heat pump system, the solar collector model, heat pump model and hot water storage tank model are used to calculate energy consumption, carbon emissions, operating costs and life cycle costs; if the heating combination is a hydrogen heat pump system, the hydrogen production device model, fuel cell model, heat pump model and hot water storage tank model are used to calculate energy consumption, carbon emissions, operating costs and life cycle costs; if the heating combination is a solar-hydrogen system, the hydrogen production device model, fuel cell model, solar collector model, hot water storage tank model and water pump model are used to calculate energy consumption, carbon emissions, operating costs and life cycle costs.

[0049] The solar collector model, hot water tank model, water pump model, heat pump model, and photovoltaic model mainly calculate variables such as component outlet water temperature, heating capacity, power, and power generation through energy, mass, and momentum equations based on surrounding meteorological parameters, component inlet water temperature, water flow, and other variables.

[0050] The photovoltaic model can calculate the power generation based on factors such as solar radiation. The heat pump model can calculate the compressor energy consumption and heating capacity based on meteorological parameters. The solar collector model can calculate the heat gain of the heat exchange fluid based on solar radiation.

[0051] When calculating energy consumption, carbon emissions, operating costs and life cycle costs, the corresponding indicators are calculated using energy consumption calculation methods, operating cost calculation methods, initial investment calculation methods, life cycle cost calculation methods and carbon emissions calculation methods. The system energy consumption mainly comes from the energy consumption of the compressor and the water pump.

[0052] The carbon emission indicators of this embodiment are carbon emission and emission factor, among which:

[0053] Carbon emissions (Co2e) = number of seats / efficiency × emission factor;

[0054] Output = product quantity × carbon emissions per unit product;

[0055] Efficiency = energy consumption / carbon emissions.

[0056] The energy consumption index used in this embodiment is the energy saving rate. The energy saving rate of the current outdoor swimming pool heating system relative to the traditional heating system is used as the energy saving index, as shown below:

[0057]

[0058] E p =E a +E pump (2)

[0059] In formulas (1) to (2), ESR is the energy saving rate of the current swimming pool heating system, %; E t is the annual energy consumption of the traditional heating system, kJ; E p is the annual energy consumption of the current swimming pool heating system, kJ; E a is the annual energy consumption of the air source heat pump, kJ; E pump is the annual energy consumption of the water pump, kJ.

[0060] The life cycle cost of the current outdoor pool heating system can be calculated using the following formula:

[0061]

[0062]

[0063] C t，p =C ci，p +C oc，p +C pc，p (5)

[0064] C ci，p =(C ci，pst +C ci，ashp +C ci，tic +C ci，p +C ci，c )×CF (6)

[0065] C oc，p =C oc，p，0 ×CLF oc (7)

[0066]

[0067]

[0068]

[0069] r N =(1+r re )(1+r i )-1 (11)

[0070] C pc，p =C pc，p，0 ×CLF pc (12)

[0071] C pc，p，0 =CE p，0 ×c c (13)

[0072] In formulas (3) to (13), LCC is the life cycle cost of the current heating system, HK$; C t，p is the levelized total cost of the current heating system, HK$; CF is the capital recovery factor; is the average annual interest rate, %; N is the life cycle of the current heating system, years; C ci，p is the levelized investment cost of the current heating system, HK$; C oc，p is the levelized operating cost of the current heating system, HK$; C oc，p is the levelized CO2 emission pollution cost of the current heating system, HK$; C ci，pst is the investment cost of the phase change energy storage box, HK$; C ci，ashp is the investment cost of air source heat pump, HK$; C ci,tic is the investment cost of thermal insulation layer, HK$; C ci,p is the investment cost of the water pump, HK$; C ci,c is the investment cost of the controller, HK$; C oc，p，0 is the operating cost of the current heating system in the first year, HK$; CLF oc is the levelization coefficient of operating cost; r N,oc is the nominal floating rate of operating costs; r re is the actual floating rate; r i is the inflation rate; C pc,p，0 The first year CO2 emission pollution cost of the current heating system, HK$; CLF pc is the levelization coefficient of CO2 emission pollution cost; r N,pc A nominal floating rate for CO2 pollution emissions; CE p，0 is the CO2 emission of the current heating system in the first year, kg; c c The unit price of CO2 emission pollution is HK$ / kg. The unit prices of the main components of the current heating system are shown in Table 1.

[0073] Table 1 Unit prices of main components of current heating systems

[0074]

[0075] The operating cost savings of the current outdoor swimming pool heating system compared to the traditional heating system can be calculated by the following formula:

[0076]

[0077] In formula (14), OCSR is the operating cost saving rate, %; C oc，t is the operating cost of the traditional heating system, HK$.

[0078] The current payback period for outdoor pool heating systems can be calculated using the following formula:

[0079]

[0080] In formula (15), SPP is the investment payback period, years; C oc,t,0 is the operating cost of the traditional heating system in the first year, HK$.

[0081] The internal rate of return of the current outdoor swimming pool heating system can be calculated by the following formula:

[0082]

[0083] NF I =C oc，t，I +C pc，t，I -C oc，p，I -C pc，p，I (17)

[0084] C oc，p，I =C oc，p，0 (1+r N，oc ) I (18)

[0085] C pc，p，I =C pc，p，0 (1+r N，pc ) I (19)

[0086] In formulas (16) to (19), IRR is the internal rate of return of the current heating system, %; NF I is the net cash flow of the current heating system in year I, HK$; C oc,t，I is the operating cost of the traditional heating system in the first year, HK$; C pc,t，I is the CO2 emission pollution cost of the traditional heating system in the first year, HK$; C oc,p，I is the operating cost of the current heating system in year I, HK$; C pc,p，I is the CO2 emission pollution cost of the current heating system in the first year, HK$.

[0087] Therefore, this embodiment mainly compares the energy saving rate, life cycle cost, operating cost saving rate, payback period and internal rate of return to select the heating combination with the maximum benefit.

[0088] Optionally, in step S5, the optimization algorithm is a genetic algorithm. In step S6, the decision method adopts a multi-criteria decision method.

[0089] Embodiment 2

[0090] Taking an outdoor swimming pool in Hong Kong as an example, the technical solution of the present invention is described.

[0091] First, obtain local weather information in Hong Kong, including wind speed, relative humidity, solar radiation, outdoor temperature, etc. According to the local market conditions in Hong Kong, input the selected heating equipment and unit initial investment, including solar collectors, photovoltaic panels, hot water storage tanks, hydrogen production device fuel cells, air source heat pumps, and water pumps. Set key operating parameter information such as solar collector area, photovoltaic panel area, hot water storage tank volume, fuel cell capacity, air source heat pump rated heating capacity and performance coefficient, water pump rated flow, and heating temperature. Input the length, width, and height dimensions of the outdoor swimming pool to calculate the area and volume of the swimming pool. Input the electricity price for peak and trough electricity consumption in Hong Kong.

[0092] Then, the selected heating equipment is combined to obtain multiple heating combinations: solar water heating system, heat pump system, photovoltaic heat pump system, solar photovoltaic thermal system, solar heat pump system, hydrogen heat pump system, solar-hydrogen energy system, etc. The solar water heating system mainly uses the solar collector model, the hot water storage tank model, the water pump model and the outdoor swimming pool model. The heat pump system mainly uses the heat pump model, the hot water storage tank model and the outdoor swimming pool model. The photovoltaic heat pump system mainly uses the photovoltaic model, the heat pump model, the hot water storage tank model and the outdoor swimming pool model. The solar photovoltaic thermal system mainly uses the photovoltaic model, the solar collector model, the hot water storage tank model, the water pump model and the outdoor swimming pool model. The solar heat pump system mainly uses the solar collector model, the heat pump model, the hot water storage tank model and the outdoor swimming pool model. The hydrogen heat pump system mainly uses the hydrogen production device model, the fuel cell model, the heat pump model, the hot water storage tank model and the outdoor swimming pool model. The solar-hydrogen energy system mainly uses the hydrogen production device model, the fuel cell model, the solar collector model, the hot water storage tank model, the water pump model and the outdoor swimming pool model. The outdoor swimming pool heat exchange model can obtain the heat change process of the swimming pool by calculating heat conduction, convection heat exchange, radiation heat exchange, etc. The photovoltaic model can calculate the power generation based on factors such as solar radiation. The heat pump model can calculate the compressor energy consumption and heating capacity based on meteorological parameters. The solar collector model can calculate the heat gain of the heat exchange fluid based on solar radiation. Use the control strategy to connect multiple equipment models corresponding to the system under study for simulation. Use energy consumption calculation methods, operating cost calculation methods, initial investment calculation methods, life cycle cost calculation methods, and carbon emission calculation methods to calculate the corresponding indicators. Among them, the system energy consumption mainly comes from the energy consumption of the compressor and the water pump. Use optimization algorithms such as genetic algorithms to perform optimization with the goal of minimum energy consumption, operating costs, initial investment, life cycle costs, and carbon emissions.

[0093] Embodiment 3

[0094] like Figure 2 and Figure 3 As shown, an embodiment of the present invention provides an outdoor swimming pool heating device, including an input module, a processing module and an output module.

[0095] Specifically:

[0096] An input module is used to obtain local meteorological information of the swimming pool, the heating equipment to be selected, the unit initial investment cost and key operating parameters of the heating equipment to be selected, the size of the swimming pool and the local electricity price;

[0097] The processing module is used to calculate according to the local meteorological information and the outer dimensions of the swimming pool; and to combine the selected heating equipment to obtain multiple heating combinations; and to calculate the energy consumption, carbon emissions, operating costs, and life cycle costs of each heating combination according to the heating demand, the key operating parameters of the selected heating equipment, and the local electricity price; and then optimize each heating combination with the goal of minimum energy consumption, minimum operating cost, minimum unit initial investment cost, minimum life cycle cost, and minimum carbon emissions through an optimization algorithm; and to compare the optimization results of each heating combination using a decision-making method to select the heating combination with the maximum benefit;

[0098] The output module is used to output the heat supply combination with the maximum benefit and the unit initial investment cost, energy consumption, carbon emission, operation cost and life cycle cost of the corresponding combination.

[0099] Among them, in the processing module, the data obtained in the input module are processed using the solar collector model, hot water tank model, photovoltaic model, heat pump model, fuel cell model, hydrogen production device module, water pump model, outdoor swimming pool model, as well as optimization algorithms, control strategies, energy consumption calculation methods, operating cost calculation methods, life cycle cost calculation methods, carbon emission calculation methods and initial investment calculation methods.

[0100] In summary, the embodiment of the present invention provides an outdoor swimming pool heating method, which calculates the heating demand by inputting the local meteorological information of the swimming pool, the heating equipment to be selected, the unit initial investment cost and key operating parameters of the heating equipment to be selected, the outer dimensions of the swimming pool and the local electricity price, and obtains different heating combinations by combining the heating equipment to be selected, calculates the energy consumption, carbon emissions, operating costs, and life cycle costs of different heating combinations according to the heating demand, and optimizes the heating combinations, and selects the heating combination with the maximum benefit from the optimized heating combinations, so that the most suitable and low-cost, environmentally friendly heating method can be determined for the heating needs of the swimming pool. The embodiment of the present invention also provides an outdoor swimming pool heating device for implementing the above method.

[0101] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A method for heating an outdoor swimming pool, characterized in that: include: S1: Obtain the local meteorological information of the swimming pool, the heating equipment to be selected, the unit initial investment cost and key operating parameters of the heating equipment to be selected, the size of the swimming pool and the local electricity price; S2: Calculate heating demand based on local meteorological information and the dimensions of the swimming pool; S3: Combining the selected heating equipment to obtain multiple heating combinations; S4: Calculate the energy consumption, carbon emissions, operating costs, and life cycle costs of each heating combination based on heating demand, key operating parameters of the selected heating equipment, and local electricity prices; S5: Optimize each heating combination through optimization algorithm with the goal of minimum energy consumption, minimum operating cost, minimum unit initial investment cost, minimum life cycle cost and minimum carbon emission; S6: using a decision-making method to compare the optimization results of the various heating combinations obtained in step S5, and selecting the heating combination with the maximum benefit.

2. The outdoor swimming pool heating method according to claim 1, characterized in that: In step S2, based on local meteorological information, the worst weather condition is selected to calculate the maximum heating demand.

3. The outdoor swimming pool heating method according to claim 2, characterized in that: In step S2, an outdoor swimming pool heat exchange model is established according to whether the swimming pool is provided with an insulation layer, and the heating demand is calculated by the outdoor swimming pool heat exchange model.

4. The outdoor swimming pool heating method according to claim 4, characterized in that: The outdoor swimming pool heat exchange model obtains the heat change process of the swimming pool by calculating heat conduction, convection heat transfer, and radiation heat transfer according to local meteorological information and the external dimensions of the swimming pool, and calculates the heating demand according to the heat change process of the swimming pool and the actual use demand of the swimming pool.

5. The outdoor swimming pool heating method according to claim 2, characterized in that: In step S4, the required heating capacity of the swimming pool is obtained according to the heating demand, the predetermined preheating cycle and the water temperature distribution of the swimming pool during the shutdown period, and the energy consumption, carbon emissions, operating costs and life cycle costs of each heating combination are calculated according to the required heating capacity of the swimming pool.

6. The outdoor swimming pool heating method according to claim 1, characterized in that: In step S3, the heating combination adopts the renewable energy heating combination.

7. The outdoor swimming pool heating method according to claim 6, characterized in that: The heating combination includes a solar water heating system, a heat pump system, a photovoltaic heat pump system, a solar photovoltaic and thermal system, a solar heat pump system, a hydrogen heat pump system, and a solar-hydrogen energy system.

8. The outdoor swimming pool heating method according to claim 7, characterized in that: In step S4, if the heating combination is a solar water heating system, the solar collector model, the hot water storage tank model, and the water pump model are used to calculate the energy consumption, carbon emissions, operating costs, and life cycle costs; If the heating combination is a heat pump system, the heat pump model and the hot water storage tank model are used to calculate energy consumption, carbon emissions, operating costs and life cycle costs; If the heating combination is a photovoltaic heat pump system, the photovoltaic model, heat pump model, and hot water storage tank model are used to calculate energy consumption, carbon emissions, operating costs, and life cycle costs; If the heating combination is a solar photovoltaic and thermal system, the photovoltaic model, solar collector model, hot water storage tank model, and water pump model are used to calculate energy consumption, carbon emissions, operating costs, and life cycle costs; If the heating combination is a solar heat pump system, the solar collector model, heat pump model, and hot water storage tank model are used to calculate energy consumption, carbon emissions, operating costs, and life cycle costs; If the heating combination is a hydrogen heat pump system, the hydrogen production device model, fuel cell model, heat pump model, and hot water storage tank model are used to calculate energy consumption, carbon emissions, operating costs, and life cycle costs; If the heating combination is a solar-hydrogen system, the hydrogen production device model, fuel cell model, solar collector model, hot water storage tank model, and water pump model are used to calculate energy consumption, carbon emissions, operating costs, and life cycle costs.

9. The outdoor swimming pool heating method according to claim 1, characterized in that: In step S5, the optimization algorithm is a genetic algorithm.

10. An outdoor swimming pool heating device, characterized in that: include: An input module is used to obtain local meteorological information of the swimming pool, the heating equipment to be selected, the unit initial investment cost and key operating parameters of the heating equipment to be selected, the size of the swimming pool and the local electricity price; A processing module, used for calculation based on local meteorological information and the outer dimensions of the swimming pool; The heating equipment to be selected are combined to obtain multiple heating combinations; the energy consumption, carbon emissions, operating costs, and life cycle costs of each heating combination are calculated based on the heating demand, the key operating parameters of the heating equipment to be selected, and the local electricity price; then, each heating combination is optimized with the goal of minimum energy consumption, minimum operating cost, minimum unit initial investment cost, minimum life cycle cost, and minimum carbon emissions through an optimization algorithm; and the optimization results of each heating combination are compared using a decision-making method to select the heating combination with the maximum benefit; The output module is used to output the heat supply combination with the maximum benefit and the unit initial investment cost, energy consumption, carbon emission, operation cost and life cycle cost of the corresponding combination.

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