Method and system for optimizing operation of multi-energy complementary large-temperature-difference heat exchange station

Abstract

The invention relates to the technical field of heat exchange stations, in particular to an optimization method and system for operation of a multi-energy complementary large-temperature-difference heat exchange station, and the method comprises the steps: collecting the production operation data of the heat exchange station; the standard reaching condition of the energy utilization rate of the heat exchange station is determined based on the energy efficiency characterization parameters of the heat exchange station, and the reasonability of the energy structure of the heat exchange station is determined according to the energy diversity characterization parameters of the heat exchange station; the qualification of the heat exchange station heat supply network efficiency is determined based on the temperature difference value of the water supply temperature and the water return temperature; determining an adjustment mode of the heat exchange station heat supply network efficiency based on a ratio of the temperature difference value to a preset temperature difference value; determining whether the environmental adaptability of the heat exchange station is qualified or not based on the comprehensive characterization value result of the climate environment data, and determining the correlation between the main energy ratio of the heat exchange station and the environmental climate of the heat exchange station according to the difference value between a preset comprehensive characterization value and the comprehensive characterization value; and determining the optimization mode of the heat exchange station based on the relative difference between the comprehensive characterization value and the preset comprehensive characterization value. The operation efficiency of the heat exchange station is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange stations, and in particular to an optimization method and system for the operation of a multi-energy complementary large temperature difference heat exchange station. Background Art

[0002] The heat exchange station is an important part of the centralized heating system. It exchanges heat in the equipment through the heat medium, and then transfers the heat medium with increased or reduced temperature to the user to achieve effective transfer and distribution of thermal energy. Its operating efficiency directly affects the energy consumption and heating effect of the entire heating system. Traditional heat exchange stations often use a single energy source for heating, which has problems such as low energy utilization efficiency and high heating costs. The multi-energy complementary large temperature difference heat exchange station achieves efficient and energy-saving heating by combining multiple energy sources.

[0003] Chinese patent application publication number: CN117114179A discloses a method and device for collaborative optimization scheduling of a heat exchange station and a building in a heating system, the method comprising: obtaining historical characteristic data corresponding to a plurality of heat load characteristics that affect the heating effect of the building; performing principal component analysis based on the historical characteristic data corresponding to the plurality of heat load characteristics to determine the main characteristics among the plurality of heat load characteristics; constructing a heat load demand model using the historical characteristic data corresponding to the main characteristics and the historical heating data of the building; wherein the heat load demand model uses the characteristic data corresponding to the main characteristics as input and the heating data as output; processing the characteristic data of the main characteristics of the target building according to the heat load demand model to obtain the target flow of the target building; and controlling the opening of the valve corresponding to the target building in the secondary pipe network based on the target flow.

[0004] However, the following problems exist in the prior art: the prior art usually achieves the scheduling of the heat exchange station by establishing a mathematical model, and the multi-energy structure of the heat exchange station is not analyzed and optimized, resulting in the failure to achieve energy conservation and emission reduction of the heat exchange station, thereby causing the problem of low operating efficiency of the heat exchange station. Summary of the invention

[0005] To this end, the present invention provides an optimization method for the operation of a multi-energy complementary large temperature difference heat exchange station, so as to overcome the problem that the multi-energy structure of the heat exchange station is not analyzed and optimized in the prior art, resulting in the failure to achieve energy conservation and emission reduction of the heat exchange station, thereby leading to low operating efficiency of the heat exchange station.

[0006] To achieve the above object, the present invention provides a method for optimizing the operation of a multi-energy complementary large temperature difference heat exchange station, comprising: Collecting production and operation data of the heat exchange station, wherein the production and operation data includes energy type data, heat network operation data, climate and environment data, and energy supply power data; Determine whether the energy utilization rate of the heat exchange station meets the standard based on the energy efficiency characterization parameter of the heat exchange station, and determine the rationality of the energy structure of the heat exchange station based on the energy diversity characterization parameter of the heat exchange station; Determine the eligibility of the heat exchange station heat network efficiency based on the temperature difference between the supply water temperature and the return water temperature; Based on the ratio of the temperature difference to the preset temperature difference, determine whether to increase the heat exchange station supply water temperature by a preset supply water temperature adjustment coefficient or to increase the heat exchange station return water temperature by a preset return water temperature adjustment coefficient; When determining to collect climate and environmental data, determine whether the environmental adaptability of the heat exchange station is qualified based on the comprehensive characterization value of the climate and environmental data, and determine whether the main energy proportion of the heat exchange station is negatively correlated or positively correlated with the environmental climate of the heat exchange station based on the difference between the preset comprehensive characterization value and the comprehensive characterization value; Determine the proportion of main energy to be increased in the heat exchange station based on the relative difference between the comprehensive characterization value and the preset comprehensive characterization value; Whether the current thermal power compensation capacity trend of the heat exchange station based on the associated energy meets the coupling current heat network heat exchange demand is determined to increase the energy supply power of the non-clean energy of the heat exchange station energy or increase the energy supply power of the clean energy of the heat exchange station energy.

[0007] Furthermore, based on the comparison result that the energy efficiency characterization parameter of the heat exchange station is less than the energy efficiency characterization parameter threshold, it is determined that the energy utilization rate of the heat exchange station does not meet the standard, and based on the comparison result that the energy diversity characterization parameter of the heat exchange station is less than or equal to the preset energy diversity characterization parameter, it is determined that the energy structure of the heat exchange station is unreasonable.

[0008] Furthermore, when it is determined that the energy structure of the heat exchange station is reasonable, the heat network efficiency of the heat exchange station is determined to be unqualified based on the comparison result that the temperature difference between the supply water temperature and the return water temperature is less than or equal to the preset temperature difference, and the water supply temperature of the heat exchange station is increased by the preset water supply temperature adjustment coefficient based on the comparison result that the ratio of the temperature difference to the preset temperature difference is less than or equal to the preset ratio.

[0009] Further, based on the comparison result that the ratio of the temperature difference to the preset temperature difference is greater than the preset ratio, it is determined that the return water temperature of the heat exchange station is increased by the preset return water temperature adjustment coefficient.

[0010] Furthermore, under the condition of determining the collection of climate and environmental data, the environmental adaptability of the heat exchange station is determined to be qualified based on the comparison result that the comprehensive characterization value of the climate and environmental data is less than or equal to the preset comprehensive characterization value, and the main energy proportion of the heat exchange station is determined to be negatively correlated with the environmental climate of the heat exchange station based on the comparison result that the difference between the preset comprehensive characterization value and the comprehensive characterization value is less than or equal to the preset difference.

[0011] Furthermore, based on the comparison result that the difference between the preset comprehensive characterization value and the comprehensive characterization value is greater than the preset difference, it is determined that the proportion of the main energy of the heat exchange station is positively correlated with the environmental climate of the heat exchange station.

[0012] Furthermore, under the condition of determining the collection of climate and environmental data, the environmental adaptability of the heat exchange station is determined to be unqualified based on the comparison result that the comprehensive characterization value of the climate and environmental data is greater than the preset comprehensive characterization value, and the relative difference between the comprehensive characterization value and the preset comprehensive characterization value and the preset relative difference is determined to increase the proportion of the main energy of the heat exchange station by the first preset main energy adjustment coefficient or the second preset main energy adjustment coefficient.

[0013] Furthermore, under the condition that the current trend of thermal power compensation capacity of the heat exchange station based on the associated energy cannot be coupled with the current heat exchange demand of the heat network, the energy supply power of the non-clean energy of the heat exchange station energy can be increased.

[0014] Furthermore, the current trend of thermal power compensation capacity of the heat exchange station based on the associated energy meets the condition of coupling the current heat exchange demand of the heat network, and the energy supply power of the clean energy of the heat exchange station energy is increased.

[0015] On the other hand, the present invention also provides an optimization system for the operation of a multi-energy complementary large temperature difference heat exchange station, comprising: A data acquisition module, which is used to collect production and operation data of the heat exchange station, wherein the production and operation data includes energy type data, heat network operation data, climate and environment data, and energy supply power data; A data analysis module, which is connected to the data acquisition module, and is used to determine whether the energy utilization rate of the heat exchange station meets the standard based on the energy efficiency characterization parameters of the heat exchange station, and determine the rationality of the energy structure of the heat exchange station based on the energy diversity characterization parameters of the heat exchange station; A data processing module, which is connected to the data analysis module and is used to determine the eligibility of the heat network efficiency of the heat exchange station based on the temperature difference between the supply water temperature and the return water temperature; A data adjustment module, which is connected to the data processing module and is used to determine an adjustment method for the heat network efficiency of the heat exchange station based on a ratio of the temperature difference to a preset temperature difference; A climate analysis module, which is connected to the data acquisition module, is used to determine whether the environmental adaptability of the heat exchange station is qualified based on the comprehensive characterization value results of the climate and environmental data, and to determine the correlation between the main energy proportion of the heat exchange station and the environmental climate of the heat exchange station according to the difference between the preset comprehensive characterization value and the comprehensive characterization value; A data optimization module, which is connected to the climate analysis module and is used to determine an optimization method of the heat exchange station based on a relative difference between the comprehensive characterization value and a preset comprehensive characterization value; An energy compensation module is connected to the data acquisition module and the data optimization module, and is used to determine whether to increase the energy supply power of the non-clean energy of the heat exchange station energy or increase the energy supply power of the clean energy of the heat exchange station energy based on whether the current thermal power compensation capacity trend of the heat exchange station of the associated energy meets the coupling current heat network heat exchange demand.

[0016] Compared with the prior art, the beneficial effect of the present invention lies in that the present invention collects the production and operation data of the heat exchange station, then evaluates the energy utilization rate and structural rationality, then judges the eligibility of the heat network efficiency, and adjusts the water supply temperature or the return water temperature when the heat network efficiency is unqualified, then evaluates the environmental adaptability and adjusts the energy structure, and finally adjusts the main energy according to the unqualified environmental adaptability, comprehensively evaluates the energy efficiency, heat network efficiency and environmental adaptability of the heat exchange station, ensures the efficient and stable operation of the heat exchange station, and can also adjust the energy structure according to environmental changes, thereby improving energy utilization efficiency and reducing unnecessary energy consumption, thereby improving the operation efficiency of the heat exchange station.

[0017] Furthermore, the present invention determines whether the energy utilization rate meets the standard by comparing the energy efficiency characterization parameters of the heat exchange station with the energy efficiency characterization parameter threshold, and further compares the energy diversity characterization parameters with the preset energy diversity characterization parameters when meeting the standard, evaluates the rationality of the energy structure of the heat exchange station, promotes the heat exchange station to adopt more diversified energy, improves the stability and sustainability of energy supply, and reduces dependence on a single energy source.

[0018] Furthermore, the present invention determines whether the heating network efficiency is qualified by comparing the temperature difference between the supply water temperature and the return water temperature with a preset temperature difference. If it is unqualified, the supply water temperature or the return water temperature is adjusted to improve the heating network efficiency. Temperature control and heating network efficiency adjustment increase the energy saving and emission reduction speed of the heat exchange station and improve the efficient utilization of energy in the heat exchange station.

[0019] Furthermore, the present invention determines the environmental adaptability of the heat exchange station by comparing the comprehensive characterization value of the climate and environmental data with the preset comprehensive characterization value. If qualified, the correlation between the main energy proportion of the heat exchange station and the environmental climate is determined by further comparing the difference between the comprehensive characterization value and the preset value with the preset difference, thereby achieving a rapid assessment of the environmental adaptability of the heat exchange station, and then adjusting the energy structure, optimizing the operation of the heat exchange station, improving the energy efficiency and environmental adaptability of the heat exchange station, providing effective support for energy conservation and emission reduction, and thus improving the operating efficiency of the heat exchange station.

[0020] Furthermore, the present invention increases the main energy supply of the heat exchange station by comparing the relative difference between the comprehensive characterization value and the preset comprehensive characterization value and the preset relative difference, adjusts the energy supply of the heat exchange station, enhances adaptability to environmental changes, improves the effective utilization of energy, and thus improves the operating efficiency of the heat exchange station.

[0021] Furthermore, the present invention adjusts the energy supply power of clean energy and non-clean energy by matching the current trend of the thermal power compensation capacity of the heat exchange station with the heat exchange demand of the heat network, thereby effectively improving the energy utilization efficiency of the heat exchange station, ensuring that the heat exchange demand of the heat network is met, and promoting the optimization of the energy structure by adjusting the usage ratio of clean energy and non-clean energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a flow chart of the optimization method of the operation of the multi-energy complementary large temperature difference heat exchange station according to the embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of an optimization system for operation of a multi-energy complementary large temperature difference heat exchange station according to an embodiment of the present invention; Figure 3 A flow chart for determining the rationality of the energy structure of a heat exchange station according to an embodiment of the present invention; Figure 4 The present invention is a flowchart for determining the eligibility of the heat network efficiency of a heat exchange station according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0025] It should be pointed out that the data in this embodiment are obtained by comprehensive analysis and evaluation of the historical test data and the corresponding historical test results of the present invention in the three months before this test. It can be understood by those skilled in the art that the present invention can determine the above parameters for a single item by selecting the highest proportion of values ​​as the preset standard parameters according to the data distribution, using weighted summation to use the obtained values ​​as the preset standard parameters, substituting each historical data into a specific formula and using the values ​​obtained by the formula as the preset standard parameters or other selection methods, as long as the present invention can clearly define different specific situations in the single determination process through the obtained values.

[0026] See also Figure 1-Figure 4 As shown, Figure 1 It is a flow chart of the optimization method of the operation of the multi-energy complementary large temperature difference heat exchange station according to the embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of an optimization system for operation of a multi-energy complementary large temperature difference heat exchange station according to an embodiment of the present invention; Figure 3 A flow chart for determining the rationality of the energy structure of a heat exchange station according to an embodiment of the present invention; Figure 4 The present invention is a flowchart for determining the eligibility of the heat network efficiency of a heat exchange station according to an embodiment of the present invention.

[0027] The optimization method for operation of a large temperature difference heat exchange station based on multi-energy complementarity in the embodiment of the present invention includes: Step S1, collecting production and operation data of the heat exchange station, wherein the production and operation data includes energy type data, heat network operation data, climate environment data and energy supply power data; Step S2, determining whether the energy utilization rate of the heat exchange station meets the standard based on the energy efficiency characterization parameter of the heat exchange station, and determining the rationality of the energy structure of the heat exchange station based on the energy diversity characterization parameter of the heat exchange station; Step S3, determining the eligibility of the heat exchange station heat network efficiency based on the temperature difference between the supply water temperature and the return water temperature; Step S4, determining whether to increase the supply water temperature of the heat exchange station by a preset supply water temperature adjustment coefficient or to increase the return water temperature of the heat exchange station by a preset return water temperature adjustment coefficient based on the ratio of the temperature difference to the preset temperature difference; Step S5, when determining to collect climate and environmental data, determining whether the environmental adaptability of the heat exchange station is qualified based on the comprehensive characterization value result of the climate and environmental data, and determining whether the main energy proportion of the heat exchange station is negatively correlated or positively correlated with the environmental climate of the heat exchange station according to the difference between the preset comprehensive characterization value and the comprehensive characterization value; Step S6, determining to increase the proportion of main energy of the heat exchange station based on the relative difference between the comprehensive characterization value and the preset comprehensive characterization value; Step S7, based on the current thermal power compensation capacity trend of the heat exchange station associated with the energy, determine whether to schedule the energy of the heat exchange station in conjunction with the current heat exchange demand of the heat network.

[0028] In the embodiment of the present invention, the energy type data includes but is not limited to solar energy data, natural gas data and electricity data, and the electricity data is data of electricity generated by fossil fuels.

[0029] In the embodiment of the present invention, the heating network operation data includes but is not limited to input energy, output energy, water supply temperature data and return water temperature data.

[0030] In the embodiment of the present invention, the climate environment data includes but is not limited to temperature data, humidity data and wind data.

[0031] In an embodiment of the present invention, the energy supply power data is the sum of the energy supplied by several heat exchange equipment in the heat exchange station, and the energy supply power includes clean energy supply power and non-clean energy supply power. The clean energy is solar energy and natural gas energy, and the non-clean energy is electric energy.

[0032] In the embodiment of the present invention, the production operation data is collected within a collection period, and the collection period is the time for data collection during the heating period.

[0033] On the other hand, the present invention also provides an optimization system for the operation of a multi-energy complementary large temperature difference heat exchange station, comprising: A data acquisition module, which is used to collect production and operation data of the heat exchange station, wherein the production and operation data includes energy type data, heat network operation data, climate and environment data, and energy supply power data; A data analysis module, which is connected to the data acquisition module, and is used to determine whether the energy utilization rate of the heat exchange station meets the standard based on the energy efficiency characterization parameters of the heat exchange station, and determine the rationality of the energy structure of the heat exchange station based on the energy diversity characterization parameters of the heat exchange station; A data processing module, which is connected to the data analysis module and is used to determine the eligibility of the heat network efficiency of the heat exchange station based on the temperature difference between the supply water temperature and the return water temperature; A data adjustment module, which is connected to the data processing module and is used to determine an adjustment method for the heat network efficiency of the heat exchange station based on a ratio of the temperature difference to a preset temperature difference; A climate analysis module, which is connected to the data acquisition module, is used to determine whether the environmental adaptability of the heat exchange station is qualified based on the comprehensive characterization value results of the climate and environmental data, and to determine the correlation between the main energy proportion of the heat exchange station and the environmental climate of the heat exchange station according to the difference between the preset comprehensive characterization value and the comprehensive characterization value; A data optimization module, which is connected to the climate analysis module and is used to determine an optimization method of the heat exchange station based on a relative difference between the comprehensive characterization value and a preset comprehensive characterization value; An energy compensation module is connected to the data acquisition module and the data optimization module, and is used to determine whether to increase the energy supply power of the non-clean energy of the heat exchange station energy or increase the energy supply power of the clean energy of the heat exchange station energy based on whether the current thermal power compensation capacity trend of the heat exchange station of the associated energy meets the coupling current heat network heat exchange demand.

[0034] Specifically, the present invention collects the production and operation data of the heat exchange station, then evaluates the energy utilization rate and structural rationality, and then determines the eligibility of the heat network efficiency. When the heat network efficiency is unqualified, it adjusts the water supply temperature or the return water temperature, and then evaluates the environmental adaptability and adjusts the energy structure. Finally, according to the unqualified environmental adaptability, the main energy is adjusted, and the energy efficiency, heat network efficiency and environmental adaptability of the heat exchange station are comprehensively evaluated to ensure the efficient and stable operation of the heat exchange station. The energy structure can also be adjusted according to environmental changes, thereby improving energy utilization efficiency and reducing unnecessary energy consumption, thereby improving the operation efficiency of the heat exchange station.

[0035] Specifically, the embodiment of the present invention determines whether the energy utilization rate of the heat exchange station meets the standard according to the comparison result of the energy efficiency characterization parameter of the heat exchange station and the energy efficiency characterization parameter threshold value of 0.86; When the energy efficiency characterization parameter is less than the energy efficiency characterization parameter threshold, it is determined that the energy utilization rate of the heat exchange station does not meet the standard; When the energy efficiency characterization parameter is greater than or equal to the energy efficiency characterization parameter threshold, it is determined that the energy utilization rate of the heat exchange station meets the standard.

[0036] In the embodiment of the present invention, the energy efficiency characterization parameter threshold value is 0.86, and the energy efficiency characterization parameter threshold value is obtained by taking the average value of the energy efficiency characterization parameters of several historical heat exchange stations that meet the energy utilization standards. However, the above value is not limited to this, and technical personnel in this field can also adjust the value according to actual needs.

[0037] Specifically, the embodiment of the present invention calculates the energy efficiency characterization parameter according to the following formula, setting:

[0038] Among them, P represents the energy efficiency characterization parameter, m is the number of time periods for energy collection within the collection cycle, and E j is the output energy in the jth time period, E j0 is the input energy in the jth time period.

[0039] Specifically, in the embodiment of the present invention, when it is determined that the energy utilization rate of the heat exchange station does not meet the standard, the rationality of the energy structure of the heat exchange station is determined according to the comparison result of the energy diversity characterization parameter of the heat exchange station and the preset energy diversity characterization parameter 0.89; When the energy diversity characterization parameter is less than or equal to the preset energy diversity characterization parameter, it is determined that the energy structure of the heat exchange station is unreasonable; When the energy diversity characterization parameter is greater than the preset energy diversity characterization parameter, it is determined that the energy structure of the heat exchange station is reasonable.

[0040] In the embodiment of the present invention, the preset energy diversity characterization parameter is 0.89, and the preset energy diversity characterization parameter is obtained by taking the average value of energy diversity characterization parameters with reasonable energy structures of several historical heat exchange stations, but the above value is not limited to this, and technical personnel in this field can also adjust the value according to actual needs.

[0041] Specifically, the embodiment of the present invention calculates the energy diversity characterization parameter according to the following formula, setting:

[0042] Where Q represents the parameter characterizing energy diversity, n is the number of energy types used in the heat exchange station, including but not limited to solar energy, natural gas energy and electric energy, and p i is the proportion of the i-th energy in the total energy consumption of the heat exchange station.

[0043] Specifically, the present invention determines whether the energy utilization rate meets the standard by comparing the energy efficiency characterization parameters of the heat exchange station with the energy efficiency characterization parameter threshold, and further compares the energy diversity characterization parameters with the preset energy diversity characterization parameters when meeting the standard, evaluates the rationality of the energy structure of the heat exchange station, promotes the heat exchange station to adopt more diversified energy, improves the stability and sustainability of energy supply, and reduces dependence on a single energy source.

[0044] Specifically, in the embodiment of the present invention, when it is determined that the energy structure of the heat exchange station is unreasonable, the eligibility of the heat network efficiency of the heat exchange station is determined based on the comparison result of the temperature difference between the supply water temperature and the return water temperature with the preset temperature difference of 40°C; When the temperature difference is less than or equal to the preset temperature difference, it is determined that the heat exchange station heat network efficiency is unqualified; When the temperature difference is greater than the preset temperature difference, it is determined that the heat network efficiency of the heat exchange station is qualified.

[0045] In the embodiment of the present invention, the preset temperature difference is 40°C, and the preset temperature difference is obtained by taking the average of the temperature differences of several historical heat exchange stations with qualified heat network efficiency, but the above value is not limited to this, and technical personnel in this field can also adjust the value according to actual needs.

[0046] Specifically, the temperature difference is the difference between the supply water temperature and the return water temperature of the heat exchange station.

[0047] In the embodiment of the present invention, the supply water temperature is the temperature of the hot water heated by the heat exchange station before being delivered to the heat network, and the return water temperature is the temperature of the hot water after being used in the heat network when it returns to the heat exchange station.

[0048] Specifically, under the condition that the heat network efficiency of the heat exchange station is determined to be unqualified, the embodiment of the present invention determines the adjustment method of the heat network efficiency of the heat exchange station according to the comparison result of the ratio of the temperature difference value to the preset temperature difference value and the preset ratio of 0.55; When the ratio is less than or equal to the preset ratio, it is determined that the water supply temperature of the heat exchange station is increased to a corresponding value by using a preset water supply temperature adjustment coefficient of 1.10; When the ratio is greater than the preset ratio, it is determined that the return water temperature of the heat exchange station is increased to a corresponding value by using a preset return water temperature adjustment coefficient of 1.30; The ratio is the ratio of the temperature difference to the preset temperature difference.

[0049] In the embodiment of the present invention, the preset ratio is 0.55, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0050] In the embodiment of the present invention, the increased supply water temperature is the product of the supply water temperature and the preset supply water temperature adjustment coefficient of 1.10, and the increased return water temperature is the product of the return water temperature and the preset return water temperature adjustment coefficient of 1.30.

[0051] In the embodiment of the present invention, the water supply temperature is controlled by a water supply valve, and the return water temperature is controlled by a return water valve.

[0052] Specifically, the present invention determines whether the heating network efficiency is qualified by comparing the temperature difference between the supply water temperature and the return water temperature with the preset temperature difference. If it is unqualified, the supply water temperature or the return water temperature is adjusted to improve the heating network efficiency. Temperature control and heating network efficiency adjustment improve the energy saving and emission reduction speed of the heat exchange station and improve the efficient utilization of energy in the heat exchange station.

[0053] Specifically, under the condition of determining that climate and environmental data is collected, the embodiment of the present invention determines whether the environmental adaptability of the heat exchange station is qualified according to the comparison result between the comprehensive characterization value of the climate and environmental data and the preset comprehensive characterization value 0.76; When the comprehensive characterization value is less than or equal to the preset comprehensive characterization value, it is determined that the environmental adaptability of the heat exchange station is qualified; When the comprehensive characterization value is greater than the preset comprehensive characterization value, it is determined that the environmental adaptability of the heat exchange station is unqualified.

[0054] In the embodiment of the present invention, the preset comprehensive characterization value is 0.76. The preset comprehensive characterization value is obtained by taking the average value of comprehensive characterization values ​​of several historical heat exchange stations with qualified environmental adaptability. However, the above value is not limited to this. Technical personnel in this field can also adjust the value according to actual needs.

[0055] Specifically, the embodiment of the present invention calculates the comprehensive characterization value according to the following formula, setting:

[0056] Where D represents the comprehensive characterization value, is the average value of the temperature data, T max is the maximum value of temperature data, T min is the minimum value of temperature data, is the average value of the humidity data, H max is the maximum value of humidity data, H min is the minimum value of humidity data, is the average value of the wind data, W max is the maximum value of wind data, W min This is the minimum value of wind data.

[0057] Specifically, in the embodiment of the present invention, when it is determined that the environmental adaptability of the heat exchange station is qualified, the correlation between the proportion of different energy sources in the heat exchange station and the environmental climate of the heat exchange station is determined according to the comparison result between the preset comprehensive characterization value and the difference between the comprehensive characterization value and the preset difference; When the difference is less than or equal to the preset difference, it is determined that the main energy proportion of the heat exchange station is negatively correlated with the environmental climate of the heat exchange station; When the difference is greater than the preset difference, it is determined that the main energy proportion of the heat exchange station is positively correlated with the environmental climate of the heat exchange station; The difference is the difference between the preset comprehensive characterization value and the comprehensive characterization value.

[0058] In the embodiment of the present invention, the preset difference value is 0.59, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0059] In the embodiment of the present invention, the main energy source of the heat exchange station is natural gas energy, and the main energy source of the heat exchange station accounts for more than 80% of the total energy of the heat exchange station.

[0060] In the embodiment of the present invention, the positive correlation means that when the environmental and climatic conditions are good, the higher the proportion of natural gas energy, the higher the operating efficiency of the heat exchange station and the stronger the environmental adaptability; the negative correlation means that when the environmental and climatic conditions are poor, the higher the proportion of natural gas energy, the lower the operating efficiency of the heat exchange station and the weaker the environmental adaptability.

[0061] Specifically, the present invention determines the environmental adaptability of the heat exchange station by comparing the comprehensive characterization value of the climate and environmental data with the preset comprehensive characterization value. If qualified, the correlation between the main energy proportion of the heat exchange station and the environmental climate is determined by further comparing the difference between the comprehensive characterization value and the preset value with the preset difference, thereby achieving a rapid assessment of the environmental adaptability of the heat exchange station, and then adjusting the energy structure, optimizing the operation of the heat exchange station, improving the energy efficiency and environmental adaptability of the heat exchange station, providing effective support for energy conservation and emission reduction, and thus improving the operating efficiency of the heat exchange station.

[0062] Specifically, in the embodiment of the present invention, when it is determined that the environmental adaptability of the heat exchange station is unqualified, the optimization method of the heat exchange station is determined according to the comparison result of the relative difference between the comprehensive characterization value and the preset comprehensive characterization value and the preset relative difference of 0.35; When the relative difference is less than or equal to the preset relative difference, it is determined that the main energy proportion of the heat exchange station is increased to a corresponding value by using the first preset main energy adjustment coefficient of 1.02; When the relative difference is greater than the preset relative difference, it is determined that the main energy proportion of the heat exchange station is increased to a corresponding value by using the second preset main energy adjustment coefficient of 1.05; The relative difference is the relative difference between the comprehensive characterization value and a preset comprehensive characterization value.

[0063] In the embodiment of the present invention, the preset relative difference value is 0.35, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0064] In an embodiment of the present invention, the increased main energy proportion is the product of the main energy proportion of the heat exchange station and the kth preset main energy adjustment coefficient, where k is 1 or 2, L1 is the first preset main energy adjustment coefficient of 1.02, and L2 is the second preset main energy adjustment coefficient of 1.05.

[0065] Specifically, the present invention increases the main energy supply of the heat exchange station by comparing the relative difference between the comprehensive characterization value and the preset comprehensive characterization value and the preset relative difference, adjusts the energy supply of the heat exchange station, enhances adaptability to environmental changes, improves the effective utilization of energy, and thus improves the operating efficiency of the heat exchange station.

[0066] Specifically, under the condition of determining to optimize the heat exchange station, the embodiment of the present invention adjusts the energy of the heat exchange station according to whether the current thermoelectric compensation capacity trend of the heat exchange station of the associated energy meets the coupling current heat exchange demand of the heat network; When the current thermal power compensation capacity trend of the heat exchange station associated with energy cannot couple the current heat exchange demand of the heat network, increase the energy supply power of the non-clean energy of the heat exchange station; When the current thermal power compensation capacity trend of the heat exchange station associated with the energy source meets the heat exchange demand of the current heat network, the energy supply power of the clean energy of the heat exchange station energy is increased.

[0067] In the embodiment of the present invention, the current thermoelectric compensation capacity trend is the trend of the current thermoelectric compensation capacity approaching the preset thermoelectric compensation capacity. The preset thermoelectric compensation capacity is the compensation capacity value under the ideal state pre-set according to the system's operating requirements and objectives during the design and planning stage of the thermoelectric system of the heat exchange station.

[0068] In the embodiment of the present invention, the non-clean energy is electric energy, and the clean energy is solar energy and natural gas energy.

[0069] In an embodiment of the present invention, the condition for increasing the energy supply power of the non-clean energy of the heat exchange station is the balance between power and energy consumption, that is, through a statistical method, within a week, the duration of the temperature below the preset node value in each day is defined as a high energy consumption zone, and the duration of the temperature above the preset node value is defined as a low energy consumption zone. The preset node value is 10°C. The compensation coefficient of the energy supply power of the non-clean energy is determined by the ratio of the high energy consumption zone to the low energy consumption zone. The increased non-clean energy supply power is the product of the compensation coefficient and the non-clean energy supply power.

[0070] In an embodiment of the present invention, the increased clean energy supply power is the product of the scheduling coefficient and the clean energy supply power, and the scheduling coefficient is the ratio of the relative difference between the comprehensive characterization value and the preset comprehensive characterization value to the preset relative difference.

[0071] Specifically, the present invention adjusts the energy supply power of clean energy and non-clean energy by matching the current trend of the thermal power compensation capacity of the heat exchange station with the heat exchange demand of the heat network, thereby effectively improving the energy utilization efficiency of the heat exchange station, ensuring that the heat exchange demand of the heat network is met, and promoting the optimization of the energy structure by adjusting the usage ratio of clean energy and non-clean energy.

[0072] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for optimizing the operation of a multi-energy complementary large temperature difference heat exchange station, characterized in that: include: Collecting production and operation data of the heat exchange station, wherein the production and operation data includes energy type data, heat network operation data, climate and environment data, and energy supply power data; Determine whether the energy utilization rate of the heat exchange station meets the standard based on the energy efficiency characterization parameter of the heat exchange station, and determine the rationality of the energy structure of the heat exchange station based on the energy diversity characterization parameter of the heat exchange station; Determine the eligibility of the heat exchange station heat network efficiency based on the temperature difference between the supply water temperature and the return water temperature; Based on the ratio of the temperature difference to the preset temperature difference, determine whether to increase the heat exchange station supply water temperature by a preset supply water temperature adjustment coefficient or to increase the heat exchange station return water temperature by a preset return water temperature adjustment coefficient; When determining to collect climate and environmental data, determine whether the environmental adaptability of the heat exchange station is qualified based on the comprehensive characterization value of the climate and environmental data, and determine whether the main energy proportion of the heat exchange station is negatively correlated or positively correlated with the environmental climate of the heat exchange station based on the difference between the preset comprehensive characterization value and the comprehensive characterization value; Determine the proportion of main energy to be increased in the heat exchange station based on the relative difference between the comprehensive characterization value and the preset comprehensive characterization value; Whether the current thermal power compensation capacity trend of the heat exchange station based on the associated energy meets the coupling current heat network heat exchange demand is determined to increase the energy supply power of the non-clean energy of the heat exchange station energy or increase the energy supply power of the clean energy of the heat exchange station energy.

2. The method for optimizing the operation of a multi-energy complementary large temperature difference heat exchange station according to claim 1, characterized in that: Based on the comparison result that the energy efficiency characterization parameter of the heat exchange station is less than the energy efficiency characterization parameter threshold, it is determined that the energy utilization rate of the heat exchange station does not meet the standard, and based on the comparison result that the energy diversity characterization parameter of the heat exchange station is less than or equal to the preset energy diversity characterization parameter, it is determined that the energy structure of the heat exchange station is unreasonable.

3. The method for optimizing the operation of a multi-energy complementary large temperature difference heat exchange station according to claim 2, characterized in that: When it is determined that the energy structure of the heat exchange station is reasonable, the heat network efficiency of the heat exchange station is determined to be unqualified based on the comparison result that the temperature difference between the supply water temperature and the return water temperature is less than or equal to the preset temperature difference, and the water supply temperature of the heat exchange station is increased by the preset water supply temperature adjustment coefficient based on the comparison result that the ratio of the temperature difference to the preset temperature difference is less than or equal to the preset ratio.

4. The method for optimizing the operation of a multi-energy complementary large temperature difference heat exchange station according to claim 3, characterized in that: Based on the comparison result that the ratio of the temperature difference value to the preset temperature difference value is greater than the preset ratio, it is determined that the return water temperature of the heat exchange station is increased by the preset return water temperature adjustment coefficient.

5. The method for optimizing the operation of a multi-energy complementary large temperature difference heat exchange station according to claim 1, characterized in that: Under the condition of determining the collection of climate and environmental data, the environmental adaptability of the heat exchange station is determined to be qualified based on the comparison result that the comprehensive characterization value of the climate and environmental data is less than or equal to the preset comprehensive characterization value, and the main energy proportion of the heat exchange station is determined to be negatively correlated with the environmental climate of the heat exchange station based on the comparison result that the difference between the preset comprehensive characterization value and the comprehensive characterization value is less than or equal to the preset difference.

6. The method for optimizing the operation of a multi-energy complementary large temperature difference heat exchange station according to claim 5, characterized in that: Based on the comparison result that the difference between the preset comprehensive characterization value and the comprehensive characterization value is greater than the preset difference, it is determined that the proportion of the main energy of the heat exchange station is positively correlated with the environmental climate of the heat exchange station.

7. The method for optimizing the operation of a multi-energy complementary large temperature difference heat exchange station according to claim 1, characterized in that: Under the condition of determining the collection of climate and environmental data, the environmental adaptability of the heat exchange station is determined to be unqualified based on the comparison result that the comprehensive characterization value of the climate and environmental data is greater than the preset comprehensive characterization value, and the relative difference between the comprehensive characterization value and the preset comprehensive characterization value and the preset relative difference is determined to increase the proportion of the main energy of the heat exchange station by the first preset main energy adjustment coefficient or the second preset main energy adjustment coefficient.

8. The method for optimizing the operation of a multi-energy complementary large temperature difference heat exchange station according to claim 1, characterized in that: The current trend of thermal power compensation capacity of heat exchange stations based on associated energy cannot increase the energy supply power of non-clean energy of heat exchange stations under the condition that they are coupled with the current heat exchange demand of the heat network.

9. The method for optimizing the operation of a multi-energy complementary large temperature difference heat exchange station according to claim 1, characterized in that: The current trend of thermal power compensation capacity of heat exchange stations based on associated energy is in line with the condition of coupling the current heat exchange demand of the heat network, and increasing the energy supply power of clean energy of heat exchange stations.

10. A system using the method for optimizing the operation of a multi-energy complementary large temperature difference heat exchange station according to any one of claims 1 to 9, characterized in that: include: A data acquisition module, which is used to collect production and operation data of the heat exchange station, wherein the production and operation data includes energy type data, heat network operation data, climate and environment data, and energy supply power data; A data analysis module, which is connected to the data acquisition module, and is used to determine whether the energy utilization rate of the heat exchange station meets the standard based on the energy efficiency characterization parameters of the heat exchange station, and determine the rationality of the energy structure of the heat exchange station based on the energy diversity characterization parameters of the heat exchange station; A data processing module, which is connected to the data analysis module and is used to determine the eligibility of the heat network efficiency of the heat exchange station based on the temperature difference between the supply water temperature and the return water temperature; A data adjustment module, which is connected to the data processing module and is used to determine an adjustment method for the heat network efficiency of the heat exchange station based on a ratio of the temperature difference to a preset temperature difference; A climate analysis module, which is connected to the data acquisition module, is used to determine whether the environmental adaptability of the heat exchange station is qualified based on the comprehensive characterization value results of the climate and environmental data, and to determine the correlation between the main energy proportion of the heat exchange station and the environmental climate of the heat exchange station according to the difference between the preset comprehensive characterization value and the comprehensive characterization value; A data optimization module, which is connected to the climate analysis module and is used to determine an optimization method of the heat exchange station based on a relative difference between the comprehensive characterization value and a preset comprehensive characterization value; An energy compensation module is connected to the data acquisition module and the data optimization module, and is used to determine whether to increase the energy supply power of the non-clean energy of the heat exchange station energy or increase the energy supply power of the clean energy of the heat exchange station energy based on whether the current thermal power compensation capacity trend of the heat exchange station of the associated energy meets the coupling current heat network heat exchange demand.

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