Intelligent adaptive dynamic water balance system and regulation method

Abstract

The application discloses an intelligent adaptive dynamic water force balance system and a regulation and control method, and the system comprises a dynamic electric balance valve, a temperature sensor, a pressure sensor, an indoor dry bulb temperature sensor and a controller; the dynamic electric balance valve, the temperature sensor and the pressure sensor are arranged on a water system pipeline and are in communication connection with the controller; the indoor dry bulb temperature sensor is arranged in an air conditioning room, collects an indoor environment temperature and transmits the indoor environment temperature to the controller; the dynamic electric balance valve controls pipeline on-off through changing a duty cycle; the temperature sensor and the pressure sensor collect temperatures and pressures on water supply and return dry pipes of each loop of a water system. The system is applied to a total and branch water distributor and a water collector of a water system central air conditioning energy station or to water supply and return dry pipes of each parallel main loop, realizes real-time collection of air conditioning system operation data of each branch loop, monitors and outputs operation parameters, and intelligently calculates and calibrates and adaptively and accurately regulates and controls water force balance, so that extra energy consumption for transmission and distribution is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water system control, in particular to an intelligent adaptive dynamic water balance system and a control method. BACKGROUND

[0002] At present, in public buildings using water system central air conditioning, the air conditioning energy station will divide the multiple water routes in parallel branch loops according to the use area and different functions. According to the change of indoor air conditioning load demand of each zone, the fan of the fan coil and other equipment in each zone room will be opened, stopped or adjusted. In the air conditioning water system without balance control and distribution measures, the circulating flow supplied by the air conditioning energy station to each loop is relatively constant, which will cause the mismatch between the heat (cold) supply of each branch loop of the air conditioning and the actual air conditioning load demand, which is called water balance disorder - the heat (cold) supply of part of the place is insufficient, while the heat (cold) supply of other places is excessive, which not only wastes energy consumption, but also reduces the indoor thermal comfort quality. The water balance valve on the market can balance and distribute the flow according to the load demand, but it is a resistance regulating type, which increases the energy consumption of transmission and distribution while regulating the flow.

[0003] Therefore, how to realize the water balance regulation of the water system and reduce the energy consumption is a problem to be solved by those skilled in the art. SUMMARY

[0004] Therefore, the present application provides an intelligent adaptive dynamic water balance system and a control method, which can dynamically balance and regulate the water flow of each branch loop according to the change of indoor air conditioning load demand and the start and stop of the terminal equipment, effectively reduce the energy consumption of the intelligent adaptive dynamic balance control system of the water system, and realize the maximum reduction of the energy consumption of the water system central air conditioning energy station on the premise of meeting the indoor thermal comfort.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0006] An intelligent adaptive dynamic water balance system, comprising a dynamic electric balance valve, a temperature sensor, a pressure sensor, an indoor dry bulb temperature sensor and a controller; the dynamic electric balance valve, the temperature sensor and the pressure sensor are arranged on the water system pipeline and are in communication connection with the controller; the indoor dry bulb temperature sensor is arranged in the indoor environment to collect the temperature and transmit it to the controller.

[0007] The technical effects of the above technical solutions are that the temperature sensors and the pressure sensors arranged in pairs on each branch loop collect the water temperature and the water pressure in the pipeline; the indoor dry-bulb temperature sensors arranged in the typical air-conditioned rooms at the ends of each loop collect the ambient temperature; the water temperature, the water pressure and the ambient temperature are transmitted to the controller for intelligent calculation to generate control instructions which are transmitted to the dynamic electric balance valve, and the duty cycle of the controller, so as to control the pipeline on-off and the water supply amount.

[0008] Preferably, the dynamic electric balance valve is a variable-duty-cycle on-off type water route intelligent dynamic electric balance valve, which comprises a valve body, an actuator and a clock, and is internally provided with a flow sensor; the on-off of the water system pipeline is controlled by changing the duty cycle of the actuator.

[0009] The technical effects of the above technical solutions are that the on-off time and the triggering action are recorded by the clock, the actuator controls the opening or closing of the valve body, and the flow sensor collects the flow of the water flow passing through the valve body, so as to match the control instructions and perform adaptive adjustment.

[0010] Preferably, the temperature sensors and the pressure sensors are arranged in several groups, which collect the supply and return water temperatures on the supply and return water pipes of each branch loop in the water system, and the supply and return water pressures before and after the dynamic electric balance valve, and transmit them to the controller; the dynamic electric balance valve is arranged in each branch loop of the water system, which collects the circulating flow, the flow duration and the off duration of each loop, and transmits them to the controller.

[0011] The technical effects of the above technical solutions are that the controller automatically compares the supply and return water temperature differences of each loop according to the supply and return water temperatures collected on the supply and return water pipes of each loop at a certain time, dynamically controls the duty cycle of the actuator of the dynamic electric balance valve, and intelligently adjusts the flow duration and the off duration of each loop, so as to realize the balance of the total supply energy and the total demand energy in each loop within a certain time period, and the matching adaptation of the total supply heat energy and the total demand heat energy in each loop within a certain time period; the energy is heat energy or cold energy.

[0012] The instantaneous supply energy of each loop is the product of the circulating flow and the absolute value of the difference between the supply and return water temperatures within a certain time period; the total supply energy of each loop within a certain time period is the cumulative value of the instantaneous supply energy within a certain time period.

[0013] Preferably, the system is further provided with a display platform which is connected in communication with the controller, receives and stores the collected data, and generates reports and curves according to the collected data, and can query and display the collected data, the reports and the curves.

[0014] Preferably, the system is further provided with a joint control module which can be connected in communication with an external monitoring platform, and jointly controls the air-conditioning system energy station through the monitoring platform.

[0015] The application discloses a control method of an intelligent adaptive dynamic water balance system.

[0016] Step 1: collecting the supply and return water temperatures of each branch loop of a water system, and selecting a loop corresponding to a maximum supply and return water temperature difference as a reference loop;

[0017] Step 2: calculating a ratio of a supply and return water temperature difference of a branch loop to be adjusted to a supply and return water temperature difference of the reference loop in a set time period to obtain a duty cycle;

[0018] Step 3: transmitting the duty cycle to a dynamic electric balance valve for adjustment;

[0019] Step 4: collecting an ambient temperature, and calculating a secondary adjustment range of the duty cycle according to a set temperature;

[0020] Step 5: transmitting the secondary adjustment range to the dynamic electric balance valve for calibration compensation.

[0021] Preferably, the process of calculating the secondary adjustment range in Step 4 is as follows:

[0022] Step 41: collecting the ambient temperatures of each branch loop of the water system corresponding to a service scene indoors;

[0023] Step 42: judging the sizes of the ambient temperatures and the set temperature, and calculating absolute values of differences between the ambient temperatures and the set temperature;

[0024] Step 43: taking the absolute values of the differences as an equal proportion function of the secondary adjustment range of the duty cycle of the actuator of the dynamic electric balance valve.

[0025] Preferably, in Step 5, the controller generates a calibration instruction according to the secondary adjustment range and in combination with an energy type, and transmits the calibration instruction to the dynamic electric balance valve to realize calibration compensation;

[0026] When the energy is heat energy, if the ambient temperature is less than the set temperature, the duty cycle is adjusted to be larger according to the secondary adjustment range, and vice versa; when the energy is cold energy, if the ambient temperature is less than the set temperature, the duty cycle is adjusted to be smaller according to the secondary adjustment range, and vice versa.

[0027] Preferably, the controller calculates total flow through amounts in a certain time period according to circulating flow rates of each branch loop, calculates supply and return water temperature differences in the certain time period according to the supply and return water temperatures, calculates actual supply energies of each loop in the certain time period according to the total flow through amounts and the supply and return water temperature differences of the total loop and each branch loop, and formulates an overall control strategy through statistics.

[0028] Compared with the prior art, the intelligent adaptive dynamic water balance system and the control method provided by the application can realize real-time collection of air conditioning system operation data of each branch loop, intelligent calculation calibration, adaptive and accurate control of water balance, monitoring and output of operation parameters, and the purpose of not increasing energy consumption for transmission and distribution. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0030] Figure 1 The accompanying drawings are a structural schematic diagram of an intelligent adaptive dynamic water balance system provided by the present application.

[0031] Figure 2 The accompanying drawings are a control flow schematic diagram of an intelligent adaptive dynamic water balance system provided by the present application. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0033] The embodiments of the present application disclose an intelligent adaptive dynamic water balance system, which comprises a dynamic electric balance valve, a temperature sensor, a pressure sensor, an indoor dry bulb temperature sensor and a controller.

[0034] In order to further optimize the above technical solution, the dynamic electric balance valve is a variable duty cycle on-off type waterway intelligent dynamic electric balance valve, which comprises a valve body, an actuator and a clock, and is internally provided with a flow sensor; the on-off of the water system pipeline is controlled by changing the duty cycle of the actuator.

[0035] To further optimize the above technical scheme, the temperature sensor and the pressure sensor are each provided with a plurality of groups, the supply and return water temperatures on the supply and return water main pipes of each branch loop in the water system are collected, and the supply and return water pressures before and after the dynamic electric balance valve are collected and transmitted to the controller; the dynamic electric balance valve is arranged in each loop of the water system, the circulation flow, the flow duration and the off duration of each loop are collected by the dynamic circuit balance valve, and the collected data are transmitted to the controller; the controller calculates the total supply energy of each loop in a certain time period according to the above data, generates a control instruction and transmits the control instruction to the dynamic circuit balance valve, so that the total supply energy of each loop in a certain time period is matched with the total demand energy. The energy is heat energy or cold energy.

[0036] To further optimize the above technical scheme, the system is further provided with a display platform connected in communication with the controller, receives and stores the collected data, and generates reports and curves according to the collected data, and the collected data, the reports and the curves can be queried and displayed.

[0037] To further optimize the above technical scheme, the system is further provided with a joint control module, which can be connected in communication with an external monitoring platform, and jointly controls the air conditioning system energy station through the monitoring platform.

[0038] A control method of an intelligent adaptive dynamic water balance system, the control method of the duty ratio of the actuator of the dynamic electric balance valve controlled by the controller is as follows:

[0039] S1: collecting the supply and return water temperatures of each branch loop of the water system, and selecting the loop corresponding to the maximum supply and return water temperature difference as the reference loop;

[0040] S2: calculating the ratio of the supply and return water temperature difference of the loop to be adjusted to the supply and return water temperature difference of the reference loop in a set time period as the proportional function value of the duty ratio of the actuator of the dynamic electric balance valve;

[0041] S3: the controller generates a control instruction according to the duty ratio and transmits the control instruction to the dynamic electric balance valve.

[0042] S4: collecting the ambient temperature and calculating the secondary regulation amplitude according to the set temperature;

[0043] S5: transmitting the secondary regulation amplitude to the dynamic electric balance valve for calibration and compensation.

[0044] To further optimize the above technical scheme, the process of calculating the secondary regulation amplitude in step 4 is as follows:

[0045] S41: collecting the ambient temperature of each branch loop of the water system corresponding to the service scene room;

[0046] S42: judging the size of the ambient temperature and the set temperature, and calculating the absolute value of the difference between the ambient temperature and the set temperature;

[0047] S43: taking the absolute value of the difference as a proportional function of the secondary regulation amplitude of the duty cycle of the dynamic electrodynamic balancing valve actuator.

[0048] To further optimize the above technical solution, the controller generates a calibration instruction according to the secondary regulation amplitude and the energy type in step 5, and transmits it to the dynamic electrodynamic balancing valve to realize calibration compensation.

[0049] When the energy is thermal energy, if the ambient temperature is less than the set temperature, the duty cycle is increased according to the secondary regulation amplitude, and vice versa. When the energy is cold energy, if the ambient temperature is less than the set temperature, the duty cycle is decreased according to the secondary regulation amplitude, and vice versa.

[0050] To further optimize the above technical solution, the controller calculates the total flow rate in a certain period of time according to the circulating flow rate of each branch loop, calculates the supply and return water temperature difference in a certain period of time according to the supply and return water temperature, and calculates the actual supply energy of each loop in a certain period of time according to the total flow rate and the supply and return water temperature difference of the total loop and each branch loop. The total loop refers to the total circulating loop in the energy station, mainly referring to the water system flow circulation loop between the water collector-circulating water pump-air conditioner main machine-water distributor. Each branch loop is the water system branch loop between the water distributor-indoor air conditioner terminal-water collector. The total flow rate of the total loop is the sum of the total flow rates of each branch loop.

[0051] Embodiment

[0052] In one specific embodiment, an intelligent adaptive dynamic hydraulic balancing system has the following functions:

[0053] 1. Measurement: The intelligent dynamic electrodynamic balancing valve and the sensors can measure and obtain the supply and return water temperature of each loop of the air conditioning water system, the supply and return water pressure before and after the balancing valve, the circulating flow rate of each loop, and the on-off time of the balancing valve, and transmit the relevant data to the calculation control system.

[0054] 2. Energy supply adaptive control: The controller collects the supply and return water temperature of each loop at regular intervals, calculates and compares the maximum supply and return water temperature difference of each loop, and takes the loop with the maximum supply and return water temperature difference as the reference loop. The dynamic electrodynamic balancing valve actuator of the reference loop is automatically controlled to adjust the dynamic electrodynamic balancing valve to a long-term open operation state, i.e. the duty cycle is infinite.

[0055] The other relatively small supply and return water temperature difference loop is adjusted, the dynamic electric balance valve actuator of the other loop is controlled, and the dynamic electric balance valve is adjusted to run in an open state for a period of time and a closed state for a period of time. Basically, the ratio of the supply and return water temperature difference of the loop to be adjusted to the supply and return water temperature difference of the reference loop is used as a proportional function value of the duty cycle of the dynamic electric balance valve actuator, that is, the greater the difference between the supply and return water temperature difference and the supply and return water temperature difference of the reference loop, the longer the closed period of the balance valve, the shorter the open period, and the smaller the duty cycle of the dynamic electric balance valve actuator; on the contrary, the smaller the difference between the supply and return water temperature difference and the supply and return water temperature difference of the reference loop, the shorter the closed period of the dynamic electric balance valve, the longer the open period, and the greater the duty cycle of the dynamic electric balance valve actuator.

[0056] In a set time period, the system runs according to the duty cycle of the dynamic electric balance valve of each loop, which is automatically compared and calculated according to the supply and return water temperature difference of each loop. In the next set time period, the system re-collects the supply and return water temperature difference of each loop, and re-computes and controls the duty cycle of the dynamic electric balance valve of each loop according to the above steps. The supply amount is adjusted in real time by the dynamic electric balance valve actuator to achieve the purpose of dynamic balance of each loop and realize the quantitative and intuitive effect of energy supply.

[0057] 3. Function control calibration: while the control system adjusts the dynamic electric balance valve according to the supply and return water temperature difference of each loop, the control system also compensates the duty cycle of the dynamic electric balance valve actuator according to the indoor temperature state collected by the typical indoor dry bulb temperature sensor of each branch loop, intelligently adjusts the on and off time of each loop, further calibrates the balance between supply flow and demand flow of each loop within a certain period of time, and accurately matches the total heat energy supply and demand within a certain period of time.

[0058] The system collects the typical indoor temperature of the air conditioning place corresponding to each loop at regular intervals, compares it with the indoor design temperature set value, and compensates the duty cycle of the dynamic electric balance valve actuator according to the deviation of the indoor temperature from the set value.

[0059] Specifically, in summer, when the indoor temperature of a certain loop is lower than the set value, the actuator of the dynamic electrically balanced valve should be compensated, and the duty cycle of the actuator should be adjusted again to reduce the time period of the loop being turned on and to extend the time period of the loop being turned off; when the indoor temperature of a certain loop is higher than the set value, the actuator of the dynamic electrically balanced valve should be compensated, and the duty cycle of the actuator should be adjusted again to extend the time period of the loop being turned on and to reduce the time period of the loop being turned off. In winter, when the indoor temperature of a certain loop is lower than the set value, the actuator of the dynamic electrically balanced valve should be compensated, and the duty cycle of the actuator should be adjusted again to extend the time period of the loop being turned on and to reduce the time period of the loop being turned off; when the indoor temperature of a certain loop is higher than the set value, the actuator of the dynamic electrically balanced valve should be compensated, and the duty cycle of the actuator should be adjusted again to reduce the time period of the loop being turned on and to extend the time period of the loop being turned off.

[0060] And the above calibration control takes the absolute value of the difference between the set temperature value and the actual temperature value as a proportional function of the twice adjustment range of the duty cycle of the actuator of the electrically balanced valve.

[0061] 4. Generating overall control strategy, energy saving and consumption reduction: The control system can also automatically calculate the actual cooling (heating) energy supplied by the total loop and each branch loop within a certain time period according to the total flow and the supply and return water temperature (difference) of each loop collected within a certain time period.

[0062] The heat (cool) supplied by the total loop and each loop is the product of the circulating flow and the absolute value of the difference between the supply and return water temperature, and the total heat (cool) energy supplied by the total loop and each loop within a certain time period is the integral value of the instantaneous heat (cool) supply within a certain time period.

[0063] Through the energy statistics of the total loop, the total energy generated by the energy station can be summarized to develop the overall control strategy of the cold source supply. Through the energy statistics of each branch loop, the supply and demand law can be summarized and the change law of the air conditioning load of each loop can be further mastered according to the actual cooling (heating) energy and other operation data of the air conditioning place served by each loop, the control memory is formed by using the memory function of the dynamic electrically balanced valve control adjustment, the duty cycle adjustment is performed in advance, more accurate energy saving control is realized, and energy saving and consumption reduction of the air conditioning energy station as a whole is realized.

[0064] 5. Risk avoidance: To ensure safe operation, the control system controls the on-off of the dynamic electrically balanced valve of each branch loop to avoid the multiple loops being turned off at the same time as much as possible, and to avoid the branch loops being turned off at the same time.

[0065] 6. Output: The above monitored parameters can not only be displayed on the monitoring interface, but also can be stored, inquired, and formed into reports and curves for downloading and inquiry.

[0066] 7. Joint control: the intelligent adaptive dynamic hydraulic balance system can be jointly controlled with the monitoring system of the air conditioning system energy station as a whole, is compatible on one monitoring platform, realizes optimal control of the intelligent adaptive dynamic hydraulic balance system in the state of regulation and control, and the integrated optimal control of the output of the cold machine and the frequency regulation of the water pump, so as to achieve the most efficient operation of the energy station.

[0067] The various embodiments are described in the present specification in progressive order, and each embodiment focuses on the different points from other embodiments. The same or similar parts between the various embodiments can be mutually referred to. For the device disclosed by the embodiments, since it corresponds to the method disclosed by the embodiments, the description is relatively simple, and the relevant parts can be referred to the method part.

[0068] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intelligent adaptive dynamic hydraulic balancing system, characterized in that, The system comprises a dynamic electrically balanced valve, a temperature sensor, a pressure sensor, an indoor dry bulb temperature sensor and a controller; the dynamic electrically balanced valve, the temperature sensor and the pressure sensor are arranged on the water system pipeline and are in communication connection with the controller; the indoor dry bulb temperature sensor collects the ambient temperature and transmits it to the controller; The dynamic electrically balanced valve is a variable duty cycle on-off type waterway intelligent dynamic electrically balanced valve, comprising a valve body, an actuator and a clock, and a flow sensor is built-in; the on-off of the water system pipeline is controlled by changing the duty cycle of the actuator; The temperature sensor and the pressure sensor are arranged in several groups, which collect the supply and return water temperature on the supply and return water main of each branch loop in the water system and the supply and return water pressure before and after the dynamic electrically balanced valve and transmit them to the controller; the dynamic electrically balanced valve is arranged in each branch loop of the water system, which collects the circulating flow, flow duration and off duration of each loop and transmits them to the controller; The controller calculates the total flow in a certain period of time according to the circulating flow of each branch loop, calculates the supply and return water temperature difference in a certain period of time according to the supply and return water temperature, calculates the actual supply energy of each loop according to the total flow and the supply and return water temperature difference of the total loop and each branch loop in a certain period of time, and formulates the overall control strategy by statistics; The controller automatically compares the supply and return water temperature difference of each loop according to the supply and return water temperature collected by timing, dynamically controls the duty cycle of the actuator of the dynamic electrically balanced valve, intelligently adjusts the flow duration and off duration of each loop, so as to realize the balance of the total supply energy and the total demand energy in a certain period of time and the matching of the total supply heat energy and the total demand heat energy in a certain period of time of each loop; The intelligent adaptive dynamic hydraulic balance system is controlled by a regulation method, which specifically comprises the following steps: Step 1: Collect the supply and return water temperature of each branch loop of the water system, select the branch loop corresponding to the maximum supply and return water temperature difference as the reference loop, and automatically control the dynamic electrically balanced valve actuator of the loop to adjust the dynamic electrically balanced valve to the long-term open operation state; Step 2: Calculate the ratio of the supply and return water temperature difference of the branch loop to be adjusted to the supply and return water temperature difference of the reference loop in a certain period of time to obtain the duty cycle; Step 3: Transmit the duty cycle to the dynamic electrically balanced valve for adjustment; Step 4: Collect the ambient temperature and calculate the secondary adjustment range of the duty cycle according to the set temperature; The process of calculating the secondary adjustment range in step 4 is as follows: Step 41: Collect the ambient temperature of each branch loop of the water system corresponding to the service scene; Step 42: Determine the size of the ambient temperature and the set temperature, and calculate the absolute value of the difference between the ambient temperature and the set temperature; Step 43: Take the absolute value of the difference as a proportional function of the secondary adjustment range of the duty cycle of the dynamic electrically balanced valve actuator; Step 5: Transmit the secondary adjustment range to the dynamic electrically balanced valve for calibration and compensation; In step 5, the controller generates a calibration instruction according to the secondary adjustment range and in combination with the energy type, transmits it to the dynamic electrically balanced valve, and realizes calibration and compensation; When the energy is heat energy, if the environment temperature is less than the set temperature, the duty cycle is increased according to the secondary regulation amplitude, and vice versa; when the energy is cold energy, if the environment temperature is less than the set temperature, the duty cycle is decreased according to the secondary regulation amplitude, and vice versa.

2. The intelligent self-adaptive dynamic hydraulic balancing system according to claim 1, characterized in that, The system is also provided with a display platform, which is connected in communication with the controller, receives and stores the collected data, and generates reports and curves according to the collected data, and queries and displays the collected data, reports and curves.

3. The intelligent self-adaptive dynamic hydraulic balancing system according to claim 1, wherein, The system is also provided with a joint control module, which is connected in communication with an external monitoring platform, and performs joint control with the air conditioning system energy station through the monitoring platform.

4. A control method for an intelligent adaptive dynamic hydraulic balance system according to any one of claims 1-3, characterized in that, The method comprises the following steps: Step 1: Collect the supply and return water temperatures of each branch loop of the water system, select the branch loop corresponding to the maximum supply and return water temperature difference as the reference loop, and automatically control the dynamic electric balance valve actuator of the loop to adjust the dynamic electric balance valve to a long-term open operation state; Step 2: Calculate the ratio of the supply and return water temperature difference of the branch loop to be adjusted to the supply and return water temperature difference of the reference loop in a set time period to obtain the duty cycle; Step 3: Transmit the duty cycle to the dynamic electric balance valve for adjustment; Step 4: Collect the environment temperature, and calculate the secondary regulation amplitude of the duty cycle according to the set temperature; The process of calculating the secondary regulation amplitude in Step 4 is as follows: Step 41: Collect the environment temperature of each branch loop corresponding to the service scene of the water system; Step 42: Determine the size of the environment temperature and the set temperature, and calculate the absolute value of the difference between the environment temperature and the set temperature; Step 43: Take the absolute value of the difference as a proportional function of the secondary regulation amplitude of the duty cycle of the dynamic electric balance valve actuator; Step 5: Transmit the secondary regulation amplitude to the dynamic electric balance valve for calibration compensation; In Step 5, the controller generates a calibration instruction according to the secondary regulation amplitude and the energy type, and transmits it to the dynamic electric balance valve to realize calibration compensation; When the energy is heat energy, if the environment temperature is less than the set temperature, the duty cycle is increased according to the secondary regulation amplitude, and vice versa; When the energy is cold energy, if the environment temperature is less than the set temperature, the duty cycle is decreased according to the secondary regulation amplitude, and vice versa.

Images