CN108019883B - Expense balance calculation method and device based on customer preset - Google Patents

Expense balance calculation method and device based on customer preset Download PDF

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CN108019883B
CN108019883B CN201711337920.2A CN201711337920A CN108019883B CN 108019883 B CN108019883 B CN 108019883B CN 201711337920 A CN201711337920 A CN 201711337920A CN 108019883 B CN108019883 B CN 108019883B
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temperature
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difference coefficient
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heat pump
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CN108019883A (en
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陈洁
李晓红
李文军
李超
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HUBEI YITONG CONSTRUCTION GROUP Co.,Ltd.
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Hubei Yitong Construction Group Co ltd
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Abstract

The invention provides a cost balance calculation method and device based on customer preset, which is based on a formula C = [ k ]1×|t1‑t2|+k2×|t2‑T|]× q, wherein t1Is the outdoor temperature, t2Is groundwater temperature, T is indoor preset temperature, q is flow value, k1For corresponding first difference coefficient, k2Is the corresponding second difference coefficient. The charging is carried out by the method, not only two charges of the ground source heat pump and the auxiliary heating or cooling device are considered, but also the differential charging is carried out according to different temperature differences, auxiliary heating intensity and flow, and the purposes of fairness, reasonability, high efficiency and intelligence between the user and the property management unit are achieved.

Description

Expense balance calculation method and device based on customer preset
Technical Field
The invention relates to the field of electrical engineering, in particular to a cost balance calculation method and device based on customer preset.
Background
The ground source heat pump is a form of utilizing a water source heat pump, and utilizes cold and heat exchange between water and geothermal energy as a cold and heat source of the water source heat pump, heat in the geothermal energy is taken out in winter and supplied to indoor heating, and the geothermal energy is a heat source; in summer, indoor heat is taken out and released to underground water, soil or surface water, and at the moment, geothermal energy is used as a cold source. The ground source heat pump is matched with an auxiliary heating or cooling device to achieve the heating or cooling effect.
At present, most of heating and central air conditioners in China are not subjected to metering calculation, but are calculated according to the average heating area or calculated in a common electricity metering mode. The heat and the unhealthy of the heating air, the existence of people in a room, and the energy consumption can not be well considered, and the measurement can not be respectively taken, so that the energy waste, the multiple contradictions of the measurement and the difficulty in calculation are caused, the purpose of fair calculation is difficult to achieve, and particularly when a local source heat pump is matched with an auxiliary heating or cooling device, the intelligent, fair and efficient calculation problem is urgently needed to be solved.
Disclosure of Invention
The invention aims to provide a cost balance calculation method and device based on customer preset, and solve the calculation problem when a ground source heat pump, an auxiliary heating or cooling device and other devices of an air conditioning system realize the auxiliary heating or cooling function together.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the charge balance calculation method based on the customer presetting comprises the following steps: obtaining an outdoor temperature t within a time period1Temperature t of ground water2Presetting indoor temperature T and flow value q; calculating the outdoor temperature t1Temperature t of ground water2Obtaining a first difference value, searching a first difference coefficient table by using the first difference value to obtain a corresponding first difference coefficient k1(ii) a Calculating the temperature t of the groundwater2Obtaining a second difference value with the indoor preset temperature T, and searching a second difference coefficient table by using the second difference value to obtain a corresponding second difference coefficient k2(ii) a According to the first difference and the first difference coefficient k1A second difference, a second difference coefficient k2The calculation formula for obtaining the service charge C of the ground source heat pump air conditioning system by the flow value q and the temperature data is as follows: c = [ k ]1×|t1-t2|+k2×|t2-T|]× q, wherein the outdoor temperature t1Temperature t of ground water2Indoor preset temperature T and first difference coefficient k1Second difference coefficient k2Flow value q, usage fee C.
Further, the outdoor temperature t is acquired1Temperature t of ground water2Before the step of presetting the indoor temperature T, the method further comprises the following steps: and establishing a first difference coefficient table and a second difference coefficient table.
Further, each coefficient in the first difference coefficient table is determined according to the energy consumption of the ground source heat pump.
Further, the ground source heat pump is determined according to a first difference value between the outdoor temperature and the underground water temperature.
Further, each coefficient in the second difference coefficient table is determined according to the energy consumption of the auxiliary heating or cooling device.
Further, the auxiliary heating or cooling device is determined according to the difference between the groundwater temperature and the indoor preset temperature.
Further, the power of the ground source heat pump and the auxiliary heating or cooling device is controlled according to the indoor preset temperature T.
In order to solve the above technical problems, the present invention adopts another technical solution: a customer-preset-based charge balance calculation apparatus, comprising: the first temperature measuring instrument set is arranged outdoors; the second temperature measuring instrument set is arranged at the outlet of the underground water source; the flow meter is arranged in a main pipeline and a house-entering pipeline entering a user room; the control panel is arranged indoors and used for collecting indoor preset temperature set by a user; and the controller is electrically connected with the liquid flowmeter, the first temperature measuring instrument, the second temperature measuring instrument and the control panel and is used for calculating the cost value.
Furthermore, an opening control valve is arranged in the house-entering pipeline, and the controller is electrically connected with the opening control valve.
The invention provides a cost balance calculation method and device based on customer presetting, which are based on a formula C = [ k ]1×|t1-t2|+k2×|t2-T|]× q, wherein t1Is outdoor temperature, groundwater temperature, indoor preset temperature, q is flow value, k1For corresponding first difference coefficient, k2Is the corresponding second difference coefficient. The method not only considers two calculations of the ground source heat pump and the auxiliary heating or cooling device, but also carries out difference calculation aiming at different temperature differences, auxiliary heating intensity and flow, thereby achieving the purposes of fair, reasonable, efficient and intelligent calculation between the user and the property management unit.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a flow chart of an embodiment of a customer-predetermined cost balance calculation method according to the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of a customer-preset-based charge balance calculation apparatus according to the present invention.
In the figure, a pipeline 100, a ground source heat pump 200, an auxiliary heating or cooling device 300, a first temperature measuring instrument set 400, a second temperature measuring instrument set 500, a controller 600, a flow meter 700 and a valve 800 are shown.
Detailed Description
Example 1:
as shown in fig. 1, fig. 1 is a flowchart of an embodiment of a customer-preset-based cost balance calculation method according to the present invention, which includes the following specific steps:
s100: obtaining an outdoor temperature t within a time period1Temperature t of ground water2The indoor preset temperature T and the flow value q are the flow values measured by a user entering the house.
The ground source heat pump air conditioning system conveys underground hot/cold water to the ground through a pipeline 100, including a main pipeline and a household pipeline entering a user room, and then adjusts the indoor temperature through an auxiliary heating or cooling device 300 to achieve the heating/cooling purpose. In winter, the temperature of underground water is higher than the indoor temperature on the ground, the ground source heat pump 200 takes out the heat in the geothermal energy, and the temperature required by a user can be obtained by continuously heating through the auxiliary heating or cooling device 300, so that the heating purpose is achieved, and at the moment, the geothermal energy is a heat source; in summer, the temperature of underground water is lower than the temperature on the ground, the ground source heat pump 200 takes out cold energy in the geothermal energy, and the temperature required by a user can be obtained by continuously cooling through the auxiliary heating or cooling device 300 to achieve the purpose of refrigeration, and at the moment, the geothermal energy is a cold source. The user can set an indoor preset temperature, namely a desired temperature, according to the temperature desired by the user. The larger the set indoor preset temperature and the outdoor temperature difference is, the higher the working energy consumption of the ground source heat pump 200 is, the more and faster the underground water can be supplied, and correspondingly, the energy consumption of the auxiliary heating or cooling device 300 can be increased; when the set indoor preset temperature is smaller than the set outdoor temperature difference, the ground source heat pump 200 can supply underground water more slowly with lower working energy consumption, and correspondingly, the energy consumption of the auxiliary heating or cooling device 300 can also be reduced.
In other implementation scenarios, the ground source heat pump air conditioning system delivers hot/cold air underground to the ground through the pipeline 100, and adjusts the indoor temperature by using the temperature difference in cooperation with the auxiliary heating or cooling device 300, thereby achieving the purpose of heating/cooling.
The outdoor temperature t over a period of time may be obtained by installing air temperature test gauges at the outdoor, underground water sources and/or within the pipeline 100, etc1And groundwater temperature t2The flow value q is obtained by installing the flow meter 700 in the pipe 100. The flow rate is unstable, and the flow rate in the underground main pipeline and the flow rate in the household pipeline are different, so that the flow meters can be arranged in the main pipeline and the household pipeline entering a user room, the flow rate value q is obtained through statistical calculation, and the flow rate value q of each household is integrated, so that the flow rate value of the underground main pipeline is obtained. In a preferable scheme, an opening control valve is further arranged in the service pipeline, and the controller is electrically connected with the opening control valve. According to the indoor preset temperature T of the user, the opening degrees of the different opening degree control valves are set, so that the indoor preset temperature T is set to be higher for the user, and a larger flow value can be obtained until the upper limit is reached. By the structure, the temperature can be increased quickly, and the indoor preset temperature T is fed back; first, the control device increases groundwater flow, and when the groundwater flow reaches an upper limit, the power of the auxiliary heating or cooling device 300 is increased.
In a specific implementation scene, a test model, a water source, a heating or cooling assisting device, a pipeline, a water pump and a closed space are established, and the water source, the heating or cooling assisting device and the closed space are connected into a circulating body through the pipeline. By varying the temperature value of the water source, i.e. equivalent to varying the outdoor temperature t1Temperature t of ground water2The difference between the difference and the flow of the water pump and the indoor temperature keeps a natural state, when a preset temperature is reached, the test system is started, and the energy consumption of the water pump corresponding to the difference can be obtained within a time period. By varying the difference between the water source temperature and the indoor preset temperature,i.e. corresponding to a change in the groundwater temperature t2And (3) keeping the difference value between the indoor preset temperature T, the flow of the water pump and the indoor temperature in a natural state, starting the test system, and obtaining the energy consumption of the auxiliary heating or cooling device corresponding to the difference value within a time period so as to obtain the coefficient corresponding to the difference value between the water source temperature and the indoor preset temperature.
Similarly, a first difference coefficient table can be obtained by the above control variable method, wherein each coefficient in the first difference coefficient table is determined according to the energy consumption of the ground source heat pump, and the energy consumption of the ground source heat pump is determined according to the first difference between the outdoor temperature and the groundwater temperature. Thus, a first difference coefficient table and a second difference coefficient table are prepared. In the actual use process, only the outdoor temperature t needs to be known1Temperature t of ground water2The first difference value can be used for finding out the corresponding coefficient corresponding to the first difference coefficient table, and the energy consumption of the ground source heat pump can be known.
In a specific real-time scenario, the flow value q is influenced by the groundwater temperature t2The influence of the difference (i.e., the second difference) from the indoor preset temperature T indicates that the difference between the temperature desired by the user and the groundwater temperature is smaller when the absolute value of the second difference is smaller, the purpose can be achieved only by a smaller amount of groundwater, and the flow rate in the pipeline 100 is smaller; when the absolute value of the second difference is larger, the flow rate is larger, which indicates that the difference between the temperature desired by the user and the temperature of the groundwater is larger, at this time, the purpose can be achieved only by a larger amount of groundwater, and at this time, the flow rate in the pipeline 100 is also larger, so that the user can quickly obtain the desired indoor temperature. Therefore, the aim of saving energy can be fulfilled, and the whole air conditioning system can efficiently serve customers with high quality. The flow rate of the liquid in the pipe 100 can be adjusted by controlling the opening degree of the valve 800, wherein the larger the opening degree of the valve 800 is, the larger the flow rate flowing in the pipe 100 is, and the smaller the opening degree of the valve 800 is, the smaller the flow rate flowing in the pipe 100 is.
S200: calculating the outdoor temperature t1Temperature t of ground water2Obtaining a first difference value, searching a first difference coefficient table by using the first difference value to obtain a corresponding first difference valueCoefficient of difference k1
After the first difference coefficient table and the second difference coefficient table of the ground source heat pump air conditioning system are obtained by the method in the previous step, the outdoor temperature t can be calculated1Temperature t of ground water2Obtaining a first difference value, and then searching a first difference coefficient table by using the first difference value to obtain a corresponding first difference coefficient k1Thus, the energy consumption of the ground source heat pump under the condition in a time period is obtained, and the value is as follows: k is a radical of1×|t1-t2|。
The principle of the first difference coefficient is that when the outdoor temperature t is1Temperature t of ground water2When the difference is large, the controller 600 controls the ground source heat pump 200 to increase the conveying speed so as to use underground water as much as possible for heating, the energy consumption of the ground source heat pump 200 is correspondingly increased along with the increase of the speed of the ground source heat pump 200, and the first difference coefficient k is obtained by calculating or statistically comparing the energy consumption, the labor consumption and the equipment consumption1
S300: calculating the temperature t of the groundwater2Obtaining a second difference value with the indoor preset temperature T, and searching a second difference coefficient table by using the second difference value to obtain a corresponding second difference coefficient k2
Second difference coefficient k2The calculation is performed based on the expected temperature of the user (i.e. the preset indoor temperature, which is set by the user) rather than the actual indoor temperature, because, in the actual working condition, the indoor temperature is affected by many factors, for example, a room with a large indoor use area is different from a room with a small indoor use area, and a single room is different from a plurality of rooms for heating at the same time, so the calculation using the actual indoor temperature is inaccurate and is not beneficial to energy saving and consumption reduction. And the calculation model is greatly simplified by adopting the indoor preset temperature T expected by the user for calculation, under the model, only whether the temperature of the home position or other positions appointed by the user reaches the indoor preset temperature is detected, if the indoor preset temperature is reached, the supply is stopped, or the minimum flow is supplied, and if the indoor preset temperature is not reached, the underground water is continuously supplied for heating. For more economical users, e.g. computing time phases for users who only turn on part of the room to be warmedFor fairness. Of course, the value of the preset indoor temperature T is a value that can be achieved by the current heating mode, and the maximum value of the preset indoor temperature T should be limited in the controller 600, and if the value exceeds the maximum value, the maximum value is calculated.
In a preferred scheme, when a user sets an indoor temperature T, the power of the ground source heat pump and the auxiliary heating or cooling device is controlled according to the indoor preset temperature T. The ground source heat pump is used as a main part, the auxiliary heating or cooling device is used as an auxiliary part, and the indoor temperature is matched to reach the indoor preset temperature T as soon as possible.
After the first difference coefficient table and the second difference coefficient table of the ground source heat pump air conditioning system are obtained through the S100 step method, the temperature t of the underground water can be calculated2Obtaining a second difference value with the indoor preset temperature T, and searching a second difference coefficient table by using the second difference value to obtain a corresponding second difference coefficient k2This results in a period of time during which the energy consumption of the auxiliary heating or cooling device under the conditions is given by the value k2×|t2-T|。
S400: according to the first difference and the first difference coefficient k1A second difference, a second difference coefficient k2And obtaining the service charge of the ground source heat pump air conditioning system by the flow value q.
The total energy consumption of the ground source heat pump air-conditioning system comprises energy consumed by the ground source heat pump and energy consumed by the auxiliary heating or cooling device, and the use cost C = [ k ] within a time period1×|t1-t2|+k2×|t2-T|]× q, in the actual using process, the using time is multiple of the time period, and the using fee of the user in a certain period of time can be obtained in an accumulation way.
The invention provides a cost balance calculation method and device based on customer preset, which is based on a formula C = [ k ]1×|t1-t2|+k2×|t2-T|]× q, wherein t1Is the outdoor temperature, t2Is groundwater temperature, T is indoor preset temperature, q is flow value, k1For corresponding first difference coefficient, k2Is the corresponding second difference coefficient. Calculation by the method not only takes account ofThe method considers two calculations of the ground source heat pump and the auxiliary heating or cooling device, and also carries out difference calculation aiming at different temperature differences, auxiliary heating intensity and flow, thereby achieving the purposes of fair, reasonable, efficient and intelligent calculation between the user and the property management unit.
Example 2:
based on the embodiment 1, as shown in fig. 2, fig. 2 is a schematic structural diagram of an embodiment of the fee balance calculation device based on customer pre-setting according to the present invention.
The ground source heat pump air conditioning system conveys underground hot/cold water to the ground through a pipeline 100, and adjusts the indoor temperature through an auxiliary heating or cooling device 200 to achieve the heating/cooling purpose. In winter, the temperature of underground water is higher than the indoor temperature on the ground, the ground source heat pump 200 takes out the heat in the geothermal energy, and the temperature required by a user can be obtained by continuously heating through the auxiliary heating or cooling device 300, so that the heating purpose is achieved, and at the moment, the geothermal energy is a heat source; in summer, the temperature of underground water is lower than the temperature on the ground, the ground source heat pump 200 takes out cold energy in the geothermal energy, and the temperature required by a user can be obtained by continuously cooling through the auxiliary heating or cooling device 300 to achieve the purpose of refrigeration, and at the moment, the geothermal energy is a cold source.
In other implementation scenarios, the ground source heat pump air conditioning system delivers hot/cold air underground to the ground through the pipeline 100, and adjusts the indoor temperature by means of temperature difference in cooperation with an auxiliary heating or cooling device, thereby finally achieving the purpose of heating/cooling.
The outdoor temperature t in a period of time can be obtained by respectively installing the first temperature measuring instrument set 400, the second temperature measuring instrument set 500 and the flow meter 700 at the outdoor and underground water source outlets and in the pipeline1Temperature t of groundwater2The indoor preset temperature T and the flow value q. In a specific implementation scene, a test model, a water source, a heating or cooling assisting device, a pipeline, a water pump and a closed space are established, and the water source, the heating or cooling assisting device and the closed space are refined into a circulating body through the pipeline. By changing the temperature difference between the outside of the enclosed space and the water source, i.e. by changing the outdoor temperature t1Temperature t of ground water2The difference between the difference and the flow of the water pump and the indoor temperature keeps a natural state, when a preset temperature is reached, the test system is started, and the energy consumption of the water pump corresponding to the difference can be obtained within a time period. By varying the difference between the water source temperature and the indoor preset temperature, i.e. corresponding to varying the groundwater temperature t2And (3) keeping the difference value between the indoor preset temperature T and the flow of the water pump and the indoor temperature in a natural state, starting the test system, and obtaining the energy consumption of the auxiliary heating or cooling device corresponding to the difference value within a time period. In the actual use process, a first difference coefficient table and a second difference coefficient table can be obtained by the variable control method, wherein each coefficient in the first difference coefficient table is determined according to the energy consumption of the ground source heat pump, and the energy consumption of the ground source heat pump is determined according to a first difference between the outdoor temperature and the underground water temperature; each coefficient in the second difference coefficient table is determined according to the energy consumption of the auxiliary heating or cooling device, and the energy consumption of the auxiliary heating or cooling device is determined according to the difference between the underground water temperature and the indoor preset temperature. Thus, a first difference coefficient table and a second difference coefficient table are prepared.
The controller 600 obtains the values of the first temperature measuring instrument set 400 and the values of the second temperature measuring instrument set 500, and stores the values in real time.
Set for indoor temperature of predetermineeing through control panel (not shown in the figure) and open origin heat pump air conditioning system, wherein, control panel can be an APP or the remote controller of cell-phone, and the user can be convenient sets for an indoor temperature of predetermineeing, the temperature that expects promptly according to the temperature that oneself wanted. The larger the set indoor preset temperature and the outdoor temperature difference is, the higher the working energy consumption of the ground source heat pump 200 is, the more and faster the underground water can be supplied, and correspondingly, the energy consumption of the auxiliary heating or cooling device 300 can be increased; when the set indoor temperature is smaller than the set outdoor temperature difference, the ground source heat pump 200 can supply underground water more slowly with higher energy consumption, and accordingly, the auxiliary heating or cooling device 300 can reduce energy consumption.
In other implementations, the first set of temperature measuring instruments 400 includes at least one first temperature measuring instrument for measuring outdoor temperature, and the second set of temperature measuring instruments 500 includes at least one second temperature measuring instrument for measuring outlet temperature of the groundwater source.
In a preferable scheme, an opening control valve is further arranged in the service pipeline, and the controller is electrically connected with the opening control valve. According to the indoor preset temperature value, the controller correspondingly controls the opening control valve after collecting data, when the difference value between the indoor preset temperature value and the current indoor temperature is larger, the power of the ground source heat pump is increased, the opening of the opening control valve is improved, the flow is increased, when the heat or cold quantity of underground water is insufficient, the power of the auxiliary heating or cooling device is increased, namely, the ground source heat pump is taken as a main part, the auxiliary heating or cooling device is taken as an auxiliary part, and when the ground source heat pump reaches the upper limit and does not reach the preset indoor temperature value, the auxiliary heating or cooling device is started. When the indoor temperature slowly approaches the indoor preset temperature, the power of the auxiliary heating or cooling device is preferably and correspondingly reduced until the indoor temperature reaches the indoor preset temperature, the auxiliary heating or cooling device is closed, only the ground source heat pump works at the moment, the power of the ground source heat pump is slowly reduced, the indoor temperature is maintained, and when the indoor temperature and the indoor preset temperature begin to have a difference, the power of the ground source heat pump is added, and the process is repeated.
After the first difference coefficient table and the second difference coefficient table of the ground source heat pump air conditioning system are obtained by the method in the previous step, the outdoor temperature t can be calculated1Temperature t of ground water2Obtaining a first difference value, and then searching a first difference coefficient table by using the first difference value to obtain a corresponding first difference coefficient k1Thus, the energy consumption of the ground source heat pump 200 under the condition in a time period is obtained, and the value is as follows: k is a radical of1×|t1-t2|。
Calculating the temperature t of the groundwater2Obtaining a second difference value with the indoor preset temperature T, and searching a second difference coefficient table by using the second difference value to obtain a corresponding second difference coefficient k2
After a first difference coefficient table and a second difference coefficient table of the ground source heat pump air conditioning system are obtained, the temperature t of the underground water can be calculated2Obtaining a second difference value with the indoor preset temperature T, and searching a second difference coefficient table by using the second difference value to obtain a corresponding second difference valueCoefficient of difference k2This results in a period of energy consumption of the auxiliary heating or cooling device 300 under the conditions, with a value k2×|t2-T|。
The total energy consumption of the ground source heat pump air conditioning system comprises the energy consumed by the ground source heat pump 200 and the energy consumed by the auxiliary heating or cooling device 300, and the usage charge C = [ k ] is used in a period of time1×|t1-t2|+k2×|t2-T|]× q, in the actual using process, the using time is multiple of the time period, and the using fee of the user in a certain period of time can be obtained in an accumulation way.
The invention provides a cost balance calculation method and device based on customer preset, which is based on a formula C = [ k ]1×|t1-t2|+k2×|t2-T|]× q, wherein t1Is the outdoor temperature, t2Is groundwater temperature, T is indoor preset temperature, q is flow value, k1For corresponding first difference coefficient, k2Is the corresponding second difference coefficient. The method not only considers two calculations of the ground source heat pump and the auxiliary heating or cooling device, but also carries out difference calculation aiming at different temperature differences, auxiliary heating intensity and flow, thereby achieving the purposes of fair, reasonable, efficient and intelligent calculation between the user and the property management unit.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.

Claims (3)

1. Based on the cost balance calculation method preset by the client, the ground source heat pump air conditioning system is an air conditioning system which transmits underground hot/cold water to the ground through a pipeline (100) by a ground source heat pump (200) and adjusts the indoor temperature through an auxiliary heating or cooling device (300), and is characterized by comprising the following steps:
acquiring outdoor temperature T1, underground water temperature T2, indoor preset temperature T and flow value q in a time period;
calculating the outdoor temperature t1 and the underground water temperature t2 to obtain a first difference value, and searching a first difference coefficient table by using the first difference value to obtain a corresponding first difference coefficient k 1;
calculating the groundwater temperature T2 and the indoor preset temperature T to obtain a second difference value, and searching a second difference coefficient table by using the second difference value to obtain a corresponding second difference coefficient k 2;
obtaining the usage charge C of the ground source heat pump air conditioning system according to the first difference, the first difference coefficient k1, the second difference coefficient k2 and the flow value q;
the calculation formula of the usage fee C is C = [ k1 × | T1-T2| + k2 × | T2-T | ] × q, wherein the outdoor temperature T1, the underground water temperature T2, the indoor preset temperature T, the first difference coefficient k1, the second difference coefficient k2, the flow value q and the usage fee C are calculated;
before the step of obtaining the outdoor temperature T1, the underground water temperature T2 and the indoor preset temperature T, establishing a test model, and formulating a first difference coefficient table and a second difference coefficient table;
each coefficient k1 in the first difference coefficient table is determined by the energy consumption of the ground source heat pump corresponding to the difference between the outdoor temperature and the underground water temperature in the test model;
each coefficient k2 in the second difference coefficient table is determined by the energy consumption of the auxiliary heating or cooling device corresponding to the difference between the groundwater temperature and the indoor preset temperature in the test model.
2. The customer-preset-based charge balance calculation apparatus according to the calculation method of claim 1, comprising:
a first temperature measurement instrument group disposed outdoors;
a second set of temperature measuring instruments disposed at the groundwater source outlet;
the flow meter is arranged in a main pipeline and a house-entering pipeline entering a user room;
the control panel is arranged indoors and used for collecting indoor preset temperature set by a user;
the controller is electrically connected with the flowmeter, the first temperature measuring instrument, the second temperature measuring instrument and the control panel, and is used for calculating a cost value;
the controller controls the work of the ground source heat pump and the auxiliary heating or cooling device in real time.
3. The customer-preset-based expense balance calculation apparatus according to claim 2, wherein an opening control valve is further provided in the service conduit, and the controller is electrically connected to the opening control valve.
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