Adaptive temperature control heat metering device and its operation method

Abstract

This application provides an adaptive temperature-controlled heat metering device and its operation method, belonging to the technical field of heating systems. It includes a calculation and control unit, an inlet water pipe, a heat dissipation end, and a return water pipe. Temperature sensors are installed in both the inlet and return water pipes. The regulating valve assembly includes an active valve, a floating regulating chamber, and a passive valve. The floating regulating chamber is divided into regulating chamber one and regulating chamber two by a floating piston, with a regulating spring clamped between the floating piston and regulating chamber two. The inlet end of the active valve is connected to regulating chamber one, and the outlet end is connected to regulating chamber two. The valve core of the passive valve is fixedly linked to the floating piston. Due to the self-balancing effect of the floating piston, the pressure difference across the active valve remains constant regardless of whether the opening of the active valve increases or decreases, preventing whistling noise. The calculation and control unit can obtain the system flow rate value based on the valve orifice area and the aforementioned pressure difference value, and realize heat metering based on the supply and return water temperatures measured by the supply and return water temperature sensors.

Description

Technical Field

[0001] This application belongs to the technical field of heating systems, and more specifically, relates to an adaptive temperature control heat metering device and its operation method. Background Technology

[0002] In centralized heating systems, heat supply metering and flow rate metering and control typically require separate heat meters and flow control valves, meaning that two independent components—the heat meter and the flow valve—are installed on the same heating pipeline. However, this approach has several drawbacks. First, having two separate components occupies significant installation space. Second, the heat meter, as a measuring component, requires a stable flow field for accurate measurements. The flow control valve on the same pipeline is generally a ball valve, which, due to the significant flow field obstruction and distortion during rotation, results in lower measurement accuracy. To increase the measurement accuracy of the heat meter, the flow control valve needs to be installed at a considerable distance from it, which is difficult to achieve in confined spaces such as in equipment enclosures and shafts.

[0003] In the prior art, Chinese invention patent CN114645969B discloses an integrated flow measurement and regulation device with a split structure, which integrates an electromagnetic flowmeter and a control valve into a single component to reduce installation space and reduces the impact on the flow field manifold through the split first and second baffles. However, this solution still has shortcomings: First, when the pressure in the heating system changes, or when the user's heat demand changes, the valve opening must change accordingly. This change in valve opening leads to a change in the fluid flow pattern, resulting in inaccurate fluid measurement. Furthermore, when the valve opening is too small and the pressure difference across the valve is too large, the device is prone to producing a whistling sound.

[0004] Secondly, the first and second baffles are driven by stepper motors or geared motors, and as regulating elements, they lack adaptive dynamic balancing capabilities. Because the heat load is significantly affected by external factors, fluctuations frequently occur within the pipeline, making it difficult for the first and second baffles to adaptively and dynamically adjust their openings based on these fluctuations. If stepper motors or geared motors are used for regulation, high-frequency flow field monitoring is required, followed by high-frequency adjustments via the stepper motors or geared motors based on the monitoring results. Since stepper motors or geared motors have a lag in starting and stopping, their regulation cannot keep up with the rate of change in system fluctuations, easily leading to system oscillations. Furthermore, high-frequency starting and stopping will affect the lifespan of the stepper motors or geared motors and consume additional power. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this application provides an adaptive temperature-controlled heat metering device and its usage method. By maintaining a constant pressure difference between the two valve ports, the flow rate is adjusted, completely eliminating the possibility of whistling noise in the system. Furthermore, the system can adaptively and dynamically balance adjustments based on fluctuations within the pipeline without external power, providing rapid adjustment and preventing system oscillations.

[0006] To achieve the above objectives, the technical solution of this application provides an adaptive temperature control heat metering device, including a calculation and control unit, and an inlet water pipe, a heat dissipation end, and a return water pipe connected in sequence. A supply water temperature sensor is installed upstream of the heat dissipation end, a regulating valve assembly is installed in the return water pipe, and a return water temperature sensor is installed downstream of the heat dissipation end. Both the supply water temperature sensor and the return water temperature sensor are connected to the calculation and control unit. The regulating valve assembly includes an active valve, a floating regulating chamber, and a passive valve. The heat dissipation end, the active valve, and the passive valve are connected in sequence. A floating piston is movably disposed in the floating regulating chamber, which is divided into regulating chamber one and regulating chamber two by the floating piston. The floating piston is clamped between regulating chamber two. It has an adjusting spring; the inlet of the active valve is connected to the first adjusting chamber, and the outlet of the active valve is connected to the second adjusting chamber. The passive valve contains a passive valve core. The active valve is controlled by a calculation and control unit, and the passive valve core is fixedly linked to the floating piston. When the calculation and control unit controls the active valve to decrease its opening, the floating piston moves towards the second adjusting chamber under the action of the pressure difference. The passive valve core moves in conjunction with this, causing the opening of the passive valve to decrease, so that the pressure difference between the inlet and outlet sides of the active valve remains unchanged. When the calculation and control unit controls the active valve to increase its opening, the floating piston moves towards the first adjusting chamber under the action of the pressure difference and the adjusting spring. The passive valve core moves in conjunction with this, causing the opening of the passive valve to increase, so that the pressure difference between the inlet and outlet sides of the active valve remains unchanged.

[0007] The pressure difference across the active valve remains constant. This pressure difference is a parameter of the active valve itself. The calculation and control unit can obtain the flow rate of the entire system based on the valve orifice area and the aforementioned pressure difference value, without considering the stability of the flow field. This allows the active and passive valves to be placed very close together, or even integrated into one structure. Furthermore, given the flow rate, the calculation and control unit can measure heat based on the supply and return water temperatures measured by the supply and return water temperature sensors. The calculation and control unit can adjust the system flow rate by controlling the opening of the active valve. Due to the self-balancing effect of the floating piston, the pressure difference across the active valve remains constant regardless of whether the opening of the active valve increases or decreases, preventing the active valve from whistling due to excessive pressure difference. Because the active valve shares a portion of the pressure drop, the pressure difference across the passive valve is also lower relative to the overall return water pipeline pressure drop, significantly reducing the likelihood of whistling from the passive valve due to excessive pressure difference, ensuring no disruption to residents' lives.

[0008] Optionally, the inlet water pipe, the heat dissipation end, and the return water pipe are connected in sequence, with the supply water temperature sensor installed in the inlet water pipe and the return water temperature sensor installed in the return water pipe. The water in the inlet water pipe is directly cooled by the heat dissipation end and then flows back to the return water pipe.

[0009] Optionally, it also includes a heat exchanger and a circulating pump. The heat exchanger has a heat dissipation channel and a heat absorption channel. The inlet water pipe, the heat dissipation channel, and the return water pipe are connected sequentially. The heat dissipation end, the circulating pump, and the heat absorption channel are connected in a closed loop. The supply water temperature sensor is installed between the downstream of the heat absorption channel and the upstream of the heat dissipation end, and the return water temperature sensor is installed between the upstream of the heat absorption channel and the downstream of the heat dissipation end. In this case, the heat dissipation end is not connected to the inlet water pipe and the return water pipe, but has a separate loop. The heat from the inlet water pipe is transferred to the separate loop where the heat dissipation end is located through the heat exchanger. The water in this separate loop is circulated by the circulating pump to achieve heat transfer.

[0010] Optionally, the system also includes an indoor ambient temperature sensor installed in the heating environment, which is connected to the calculation and control unit. In this case, the calculation and control unit can obtain the real-time indoor temperature through the sensor and compare it with the designed indoor temperature. If the real-time indoor temperature is lower than the design temperature, the calculation and control unit automatically controls the opening of the regulating valve assembly to increase the heating supply. If the real-time indoor temperature is higher than the design temperature, the calculation and control unit automatically controls the opening of the regulating valve assembly to decrease the heating supply, achieving automatic temperature control.

[0011] Optionally, the computing control unit is provided with a communication interface. The computing control unit includes a microcontroller, a digital encoder, a room temperature comparator, a supply and return water temperature comparator, a clock module, and a Bluetooth module. The digital encoder, room temperature comparator, supply and return water temperature comparator, clock module, and Bluetooth module are all connected to the microcontroller.

[0012] An operation method for an adaptive temperature-controlled heat metering device specifically includes the following steps: Step S1, Cold Operation / Water Supply Step: When the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor both do not exceed the preset lower limit of the supply water temperature, the calculation control unit controls the active valve core to keep the active valve at the predetermined opening until the water supply is completed and the cold operation ends. Step S2, Temperature Control Operation Steps: When the supply water temperature T1 measured by the supply water temperature sensor is greater than the preset lower limit of the supply water temperature, the calculation and control unit ensures that the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor reach the preset difference ΔT by controlling the opening of the active valve. Specifically, depending on different situations, the following steps S2-1 or S2-2 are dynamically adopted: Step S2-1: If the difference between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor is greater than the preset difference ΔT, then the control unit controls the active valve to increase the opening until the above difference reaches the preset difference ΔT. Step S2-2: If the difference between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor is less than the preset difference ΔT, then the calculation control unit controls the active valve to reduce the opening until the above difference reaches the preset difference ΔT. Step S3, flow metering and heat metering operation steps: The calculation control unit obtains the flow value Qv based on the opening degree of the active valve and the difference ΔP between the pressure P1 at the inlet end and P2 at the outlet end of the active valve, thus realizing flow metering; The calculation and control unit calculates the heat dissipation Q at the heat dissipation end based on the flow rate Qv and the difference ΔT between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor, thereby realizing heat measurement.

[0013] Through the above steps S1 to S3, the calculation and control unit can keep the difference between the supply water temperature T1 and the return water temperature T2 at a preset difference value ΔT in real time, and make dynamic adjustments to ensure that the water temperature in the return water pipe does not fluctuate drastically, and to ensure that the heat dissipation at the heat dissipation end does not fluctuate drastically. This facilitates overall control and ensures the stability of the entire heating network, so as to ensure that the heating system operates in the most economical state.

[0014] Optionally, in step S1, the predetermined opening degree is set to the opening degree of the active valve when the system maintained the above-mentioned step S3, the flow metering and heat metering operation steps in the previous year; or, the predetermined opening degree is set to any opening degree of the active valve between the maximum opening degree and the closed state.

[0015] An operation method for an adaptive temperature-controlled heat metering device specifically includes the following steps: Step S1, Cold Operation / Water Supply Step: When the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor both do not exceed the preset lower limit of the supply water temperature, the calculation control unit controls the active valve core to keep the active valve at the predetermined opening until the water supply is completed and the cold operation ends. Step S2, Temperature Control Operation Step: When the water supply temperature T1 measured by the water supply temperature sensor is greater than the preset lower limit of the water supply temperature, the calculation control unit ensures that the water supply temperature T1 measured by the water supply temperature sensor and the return water temperature T2 measured by the return water temperature sensor reach the preset difference ΔT by controlling the opening of the active valve, and detects whether the indoor ambient temperature T3 detected by the indoor ambient temperature sensor reaches the preset ambient temperature T0. If the indoor ambient temperature T3 detected by the indoor ambient temperature sensor is equal to the preset ambient temperature T0, then proceed to step 4, the flow metering and heat metering operation steps. If the indoor ambient temperature T3 detected by the indoor ambient temperature sensor is higher or lower than the preset ambient temperature T0, the calculation control unit adjusts the indoor ambient temperature by controlling the opening of the active valve. The adjustment method dynamically adopts one of the following steps S3-1 and S3-2 according to different situations until the indoor ambient temperature T3 detected by the indoor ambient temperature sensor is equal to the preset ambient temperature T0. Then, it proceeds to step 4, the flow metering and heat metering operation steps. Step S3-1: If the indoor ambient temperature T3 is lower than the indoor ambient temperature T0 that is predetermined through heating, the calculation control unit controls the active valve to increase the opening degree and abandons the condition that the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor reach the preset difference ΔT. At the same time, it checks whether the supply water temperature T1 is too low. Step S3-2: If the indoor ambient temperature T3 is higher than the indoor ambient temperature T0 that is predetermined through heating, the calculation control unit controls the active valve to reduce the opening degree and abandons the condition that the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor reach the preset difference ΔT. At the same time, it checks whether the supply water temperature T1 is too high. Step S4, flow metering and heat metering operation steps: The calculation control unit obtains the flow value Qv based on the opening degree of the active valve and the difference ΔP between the pressure P1 at the inlet end and P2 at the outlet end of the active valve, thus realizing flow metering. The calculation and control unit calculates the heat dissipation Q at the heat dissipation end based on the flow rate Qv and the difference ΔT between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor, thereby realizing heat measurement.

[0016] By following steps S1 to S4 above, under the premise of ensuring that the water temperature in the return water pipe does not fluctuate drastically and that the heat dissipation at the heat dissipation end does not fluctuate drastically, by increasing the priority of ensuring the indoor ambient temperature T3, the temperature of the user's environment can be prioritized to ensure the user's comfort.

[0017] Optionally, in step S1, the predetermined opening degree is set to the opening degree of the active valve when the system maintained the above-mentioned step S4, the flow metering and heat metering operation steps in the previous year; or, the predetermined opening degree is set to any opening degree of the active valve between the maximum opening degree and the closed state.

[0018] Optionally, in step S2, if the difference between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor is always lower than the preset difference ΔT, and reducing the opening of the active valve cannot raise the difference between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor to the preset difference ΔT, then the calculation control unit issues a fault code to check whether the supply water temperature is too low or whether a short circuit has occurred in the user system. In step S2, if the difference between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor is always higher than the preset difference ΔT, and increasing the opening of the active valve cannot reduce the difference between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor to the preset difference ΔT, then the calculation control unit issues a fault code to check whether there is a blockage in the system.

[0019] The advantages of the technical solution in this application compared to the prior art are as follows: The calculation and control unit regulates the system flow by controlling the opening of the active valve. Due to the self-balancing effect of the floating piston, the pressure difference across the active valve remains constant regardless of whether the opening is increased or decreased, preventing the active valve from whistling due to excessive pressure difference. Because the active valve shares some of the pressure drop, the pressure difference across the passive valve is also lower relative to the overall return water pipeline pressure drop, significantly reducing whistling caused by excessive pressure difference and ensuring no disruption to residents' lives.

[0020] Meanwhile, the pressure difference across the active valve remains constant. This pressure difference is a parameter inherent to the active valve itself, and the valve orifice area is controlled in real-time by a computational control unit. Based on the orifice area and the aforementioned pressure difference, the computational control unit can obtain the overall system flow rate without considering flow field stability. This allows the active and passive valves to be positioned very close together, or even integrated into a single structure, reducing space requirements. Furthermore, given the known flow rate, the computational control unit can measure heat based on the supply and return water temperatures measured by the supply and return water temperature sensors.

[0021] Furthermore, when pressure fluctuations occur within the pipeline, the pressure difference between regulating chamber one and regulating chamber two will also fluctuate, disrupting the balance of the floating piston. The floating piston will then autonomously adjust its movement according to the internal pressure fluctuations to maintain a stable flow field. This method requires no external power and is entirely an adaptive dynamic adjustment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the first type of adaptive temperature control heat metering device; Figure 2 This is a schematic diagram of the overall structure of the second type of adaptive temperature control heat metering device; Figure 3 This is a schematic diagram of the overall structure of the third type of adaptive temperature control heat metering device; Figure 4 A schematic diagram of the calculation control unit structure; Figure 5 A schematic diagram of the internal structure of the integrated floating regulating chamber and passive valve; Figure 6 A schematic diagram of the floating regulating chamber and passive valve structure for separate configuration.

[0024] Icons: 1. Computational Control Unit; 11. Communication Interface; 12. Microcontroller; 13. Digital Encoder; 14. Room Temperature Comparator; 15. Supply and Return Water Temperature Comparator; 16. Clock Module; 17. Bluetooth Module; 21. Inlet Water Pipe; 22. Heat Dissipation End; 23. Return Water Pipe; 31. Supply Water Temperature Sensor; 32. Return Water Temperature Sensor; 33. Indoor Ambient Temperature Sensor; 4. Regulating Valve Assembly; 41. Active Valve; 411. Active Valve Stem; 412. Valve Stem Actuator; 42. Floating Regulating Chamber; 421. Floating Piston; 422. Regulating Chamber One; 423. Regulating Chamber Two; 424. Regulating Spring; 43. Passive Valve; 431. Passive Valve Stem; 432. Passive Valve Core; 433. Piston Shaft; 51. Inlet Manual Valve; 52. Return Manual Valve; 6. Heat Exchanger; 7. Circulating Pump. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0026] Example 1: This embodiment provides an adaptive temperature control heat metering device, based on... Figure 1As shown, the system includes a calculation and control unit 1, and sequentially connected components such as an inlet water pipe 21, a heat dissipation end 22, and a return water pipe 23. The heat dissipation end 22 can be a radiator or underfloor heating system. A supply water temperature sensor 31 is installed upstream of the heat dissipation end 22, a regulating valve assembly 4 is installed on the return water pipe 23, and a return water temperature sensor 32 is installed downstream of the heat dissipation end 22. Both the supply water temperature sensor 31 and the return water temperature sensor 32 are connected to the calculation and control unit 1. In this embodiment, the inlet water pipe 21, the heat dissipation end 22, and the return water pipe 23 are directly connected sequentially. The supply water temperature sensor 31 is installed on the inlet water pipe 21, and the return water temperature sensor 32 is installed on the return water pipe 23. The hot water in the inlet water pipe 21 dissipates heat through the heat dissipation end 22 and then flows back through the return water pipe 23.

[0027] The regulating valve group 4 includes an active valve 41, a floating regulating chamber 42, and a passive valve 43. The heat dissipation end 22, the active valve 41, and the passive valve 43 are connected in sequence. A floating piston 421 is movably arranged in the floating regulating chamber 42. The floating regulating chamber 42 is divided into regulating chamber one 422 and regulating chamber two 423 by the floating piston 421. An regulating spring 424 is clamped between the floating piston 421 and regulating chamber two 423. The water inlet of the active valve 41 is connected to regulating chamber one 422, and the water outlet of the active valve 41 is connected to regulating chamber two 423. The passive valve 43 has a passive valve core 432. The active valve 41 is controlled by the calculation and control unit 1, and the passive valve core 432 is fixedly linked with the floating piston 421.

[0028] In use, the calculation and control unit 1 controls the flow rate and heat exchange by adjusting the opening of the active valve 41. When the calculation and control unit 1 controls the active valve 41 to decrease its opening, the floating piston 421 moves towards the regulating chamber 423 under the action of the pressure difference. The passive valve core 432 then moves, causing the passive valve 43 to decrease its opening, thus maintaining a constant pressure difference between the inlet and outlet of the active valve 41, resulting in a decrease in flow rate and heat exchange. When the calculation and control unit 1 controls the active valve 41 to increase its opening, the floating piston 421 moves towards the regulating chamber 422 under the action of the pressure difference and the regulating spring 424. The passive valve core 432 then moves, causing the passive valve 43 to increase its opening, thus maintaining a constant pressure difference between the inlet and outlet of the active valve 41, resulting in an increase in flow rate and heat exchange. The specific principle of the above process is as follows: Let the pressure at the inlet of the active valve 41 be P1, the pressure between the active valve 41 and the passive valve 43 be P2, and the pressure at the outlet of the passive valve 43 be P3. Since the inlet of the active valve 41 is connected to regulating chamber one 422 and the outlet of the active valve 41 is connected to regulating chamber two 423, the pressure in regulating chamber one 422 is the same as the pressure at the inlet of the active valve 41, both being P1, and the pressure in regulating chamber two 423 is the same as the pressure at the outlet of the active valve 41, both being P2. When the opening of the active valve 41 decreases, the throttling effect of the active valve 41 increases, causing the pressure difference between P1 and P2 to increase. This disrupts the balance of the floating piston 421, causing it to move towards regulating chamber two 423 under the influence of the pressure difference. The floating piston 421 then drives the passive valve core 432 to move accordingly. During the movement of the floating piston 421, the opening of the passive valve 43 gradually decreases, increasing the throttling effect of the passive valve 43 and raising the pressure difference between its inlet and outlet. This increases the pressure of the adjusting spring 424 on the floating piston 421, preventing P2 from decreasing. Once the floating piston 421 reaches equilibrium at its new position, the pressure difference between P1 and P2 remains the same as before the floating piston 421 moved, meaning that the pressure difference between the inlet and outlet of the active valve 41 remains constant while the flow rate decreases. Similarly, when the active valve 41 increases its opening, the throttling effect of the active valve 41 decreases, reducing the pressure difference between P1 and P2. This disrupts the equilibrium of the floating piston 421, causing it to move towards the regulating chamber 422 under the influence of the pressure difference. The floating piston 421 then drives the passive valve core 432 to move in tandem. As the floating piston 421 moves, the opening of the passive valve 43 gradually increases, reducing its throttling effect and decreasing the pressure difference between its inlet and outlet. This reduces the pressure exerted by the adjusting spring 424 on the floating piston 421, thus preventing an increase in P2. Once the floating piston 421 reaches equilibrium at its new position, the pressure difference between P1 and P2 remains the same as before the floating piston 421 moved, ensuring that the pressure difference between the inlet and outlet of the active valve 41 remains constant while the flow rate increases.

[0029] In the above process, the calculation control unit 1 can adjust the system flow rate by controlling the opening of the active valve 41. Due to the self-balancing effect of the floating piston 421, the pressure difference across the active valve 41 remains constant regardless of whether the opening of the active valve 41 increases or decreases, preventing the active valve 41 from producing a whistling sound due to an excessive pressure difference. Since the active valve 41 shares part of the pressure drop, the pressure difference across the passive valve 43 is also lower relative to the pressure drop of the entire return water pipeline 23, significantly reducing the possibility of the passive valve 43 producing a whistling sound due to an excessive pressure difference, ensuring that it will not affect residents' lives. At the same time, the pressure difference across the active valve 41 remains constant. This pressure difference is a parameter of the active valve 41 itself, and the area of ​​the valve orifice is controlled in real time by the calculation control unit 1. The calculation control unit 1 can calculate the flow rate Qv of the entire system based on the area of ​​the valve orifice and the aforementioned pressure difference value, without considering the stability of the flow field. This allows the active valve 41 and the passive valve 43 to be placed very close together, or even integrated into a single structure, reducing space occupation. With the flow rate known, the calculation and control unit 1 can measure the heat based on the supply and return water temperatures measured by the supply water temperature sensor 31 and the return water temperature sensor 32. Furthermore, when pressure fluctuations occur within the pipeline, the pressure difference between regulating chamber one 422 and regulating chamber two 423 will fluctuate, disrupting the balance of the floating piston 421. The floating piston 421 will then autonomously adjust its movement according to the internal pressure fluctuations to maintain a stable flow field. This method requires no external power and is entirely adaptive dynamic adjustment.

[0030] In this embodiment, an inlet manual valve 51 is installed on the inlet pipe 21, and a return manual valve 52 is installed on the return pipe 23. The return manual valve 52 is located on the outlet side of the passive valve 43. The supply water temperature sensor 31 is located at the inlet manual valve 51, and the return water temperature sensor 32 is located on the outlet side of the passive valve 43. After closing both the inlet manual valve 51 and the return manual valve 52, the regulating valve group 4 can be isolated from the heating circuit for easy maintenance and replacement. Meanwhile, the active valve 41 has an active valve body, which contains an active valve stem 411 and an active valve core connected to the active valve stem 411. The end of the active valve stem 411 extending out of the active valve body is connected to a valve stem actuator 412, which is controlled by the calculation and control unit 1. By controlling the action of the valve stem actuator 412, the calculation and control unit 1 can adjust the position of the active valve stem 411, thereby controlling the opening degree of the active valve 41.

[0031] For the passive valve 43, this embodiment adopts Figure 5The structure shown is as follows: a floating regulating chamber 42 is disposed within the valve body of the passive valve 43, and the floating regulating chamber 42 is divided into regulating chamber one 422 and regulating chamber two 423 by a floating piston 421. Regulating chamber one 422 is connected to the inlet end of the active valve 41 via a channel, and regulating chamber two 423 is connected to the outlet end of the active valve 41. The passive valve core 432 in the passive valve 43 is a cylindrical shell and is directly mounted on the bottom of the floating piston 421. A regulating spring 424 is located within regulating chamber two 423 and abuts against the bottom end of the floating piston 421. The bottom of regulating chamber two 423 connects the inlet and outlet of the passive valve 43. At this time, the water pressure entering from the bottom inlet of the passive valve 43 can directly act on the bottom of the floating piston 421, applying a pressure of P2 to the floating piston 421. The pressure of P1 at the inlet end of the active valve 41 directly acts on the top of the floating piston 421. The passive valve core 432 creates a throttling effect between the inlet and outlet of the passive valve 43. As the floating piston 421 moves up and down, the passive valve core 432 follows the floating piston 421 to move up and down, thus achieving adaptive pressure regulation.

[0032] In other embodiments, based on Figure 6 As shown, the floating regulating chamber 42 and the passive valve 43 can also be implemented using two independent components. The floating regulating chamber 42 has a cylindrical structure, and the floating piston 421 is located inside the floating regulating chamber 42. The floating piston 421 is provided with a piston shaft 433 extending out of the floating regulating chamber 42, and the passive valve core 432 is provided with a passive valve stem 431 extending from the valve body of the passive valve 43. The passive valve stem 431 is connected to the piston shaft 433, realizing the linkage between the passive valve core 432 and the floating piston 421.

[0033] Example 2: This embodiment provides an adaptive temperature-controlled heat metering device, which differs from the solution in Embodiment 1 in that the inlet water pipe 21, the heat dissipation end 22, and the return water pipe 23 are not directly connected sequentially. Specifically, based on Figure 2 As shown, the adaptive temperature control heat metering device also includes a heat exchanger 6 and a circulating pump 7. The heat exchanger 6 has a heat dissipation channel and a heat absorption channel. The inlet water pipe 21, the heat dissipation channel, and the return water pipe 23 are connected sequentially, and the heat dissipation end 22, the circulating pump 7, and the heat absorption channel are connected in a closed loop. At this time, the heat dissipation end 22 is not connected to the inlet water pipe 21 and the return water pipe 23, but has a separate loop. The heat from the inlet water pipe 21 is transferred to the separate loop of the heat dissipation end 22 through the heat exchanger 6. The water in this separate loop is circulated by the circulating pump 7 to achieve heat transfer. In order to calculate the actual heat dissipation of the heat dissipation end 22, the supply water temperature sensor 31 is installed between the downstream of the heat absorption channel and the upstream of the heat dissipation end 22, and the return water temperature sensor 32 is installed between the upstream of the heat absorption channel and the downstream of the heat dissipation end 22.

[0034] In this embodiment, the regulating valve group 4 is located on the return water pipeline 23, the inlet water pipeline 21 is equipped with an inlet manual valve 51, and the return water pipeline 23 is equipped with a return water manual valve 52. The return water manual valve 52 is located on the outlet side of the passive valve 43. After closing both the inlet manual valve 51 and the return water manual valve 52, the regulating valve group 4 can be isolated from the heating circuit, which facilitates maintenance and replacement.

[0035] Example 3: This embodiment provides an adaptive temperature control heat metering device, based on the scheme of Embodiment 1, and based on... Figure 3 As shown, it also includes an indoor ambient temperature sensor 33 installed in the heating environment, which is connected to the computing control unit 1.

[0036] With the above settings, the calculation control unit 1 can obtain the real-time indoor temperature through the indoor ambient temperature sensor 33 and compare it with the indoor temperature that needs to be achieved by the design. If the real-time indoor temperature is lower than the design temperature, the calculation control unit 1 automatically controls to increase the opening of the regulating valve group 4 to increase the heat supply. If the real-time indoor temperature is higher than the design temperature, the calculation control unit 1 automatically controls to decrease the opening of the regulating valve group 4 to reduce the heat supply, thus achieving the effect of automatic temperature control.

[0037] based on Figure 4 As shown, the calculation control unit 1 is equipped with a communication interface 11. The calculation control unit 1 includes a microcontroller 12, a digital encoder 13, a room temperature comparator 14, a supply and return water temperature comparator 15, a clock module 16, and a Bluetooth module 17. The digital encoder 13, room temperature comparator 14, supply and return water temperature comparator 15, clock module 16, and Bluetooth module 17 are all connected to the microcontroller 12. The communication interface 11 is used to connect to external devices to achieve data transmission or software updates. The digital encoder 13 is used to encode signal data and convert it into a signal form that can be used for communication, transmission, and storage. The supply and return water temperature comparator 15 is used to compare the temperature measurements of the supply water temperature sensor 31 and the return water temperature sensor 32. The room temperature comparator 14 is used to compare the temperature measurement of the indoor ambient temperature sensor 33 with the designed indoor temperature value. The calculation control unit 1 stores the difference between the inlet pressure P1 and the outlet pressure P2 of the active valve 41; this difference is an inherent parameter of the active valve 41. The opening degree of the active valve 41 can be obtained through the position information of the valve stem actuator 412, thereby obtaining the real-time flow rate. Instantaneous heat supply is calculated based on the temperature measurements from the supply water temperature sensor 31 and the return water temperature sensor 32, achieving flow and heat measurement. The clock module 16 ensures timely and accurate communication, receiving instructions from the platform and participating in flow and heat measurement. A display panel can be installed in the user's room, and the Bluetooth module 17 can wirelessly transmit and display real-time data on the display panel for users to access heating information.

[0038] Example 4: This embodiment provides an operation method applicable to the adaptive temperature control heat metering device in Embodiment 1 or 2, based on Figure 1 or Figure 2 As shown, the specific steps include the following: Step S1, Cold Operation / Water Supply Step: When the water supply temperature T1 measured by the water supply temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32 both do not exceed the preset lower limit of the water supply temperature, the calculation control unit 1 controls the active valve core to keep the active valve 41 at the predetermined opening until the water supply is completed and the cold operation ends.

[0039] Step S1 is applied during the initial water supply and cooling operation phase of the heating season. The preset lower limit of the hot water supply temperature is generally set between 30 and 38 degrees Celsius; in this embodiment, it is set to 35 degrees Celsius. During this phase, the flowing water in the entire system is not used for heating. The temperature difference between the supply water temperature T1 and the return water temperature T2 is extremely small. To prevent the calculation control unit 1 from treating this extremely small temperature difference as a heating anomaly, the calculation control unit 1 is configured such that when both the supply water temperature T1 measured by the supply water temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32 do not exceed the preset lower limit of the hot water supply temperature, i.e., do not exceed 35 degrees Celsius, the calculation control unit 1 will not report an anomaly and will maintain the active valve 41 at a predetermined opening to ensure smooth water supply. After water supply is completed and the cooling operation ends, the supply water temperature T1 gradually increases and rises above the preset lower limit of the hot water supply temperature, i.e., exceeding 35 degrees Celsius. At this point, step S2, the temperature control operation step, is initiated.

[0040] Step S2, Temperature Control Operation Steps: When the supply water temperature T1 measured by the supply water temperature sensor 31 is greater than the preset lower limit of the supply water temperature, the calculation control unit 1 ensures that the supply water temperature T1 measured by the supply water temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32 reach the preset difference ΔT by controlling the opening of the active valve 41. Specifically, depending on different situations, the following steps S2-1 or S2-2 are dynamically adopted: Step S2-1: If the difference between the supply water temperature T1 measured by the supply water temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32 is greater than the preset difference ΔT, then the calculation control unit 1 controls the active valve 41 to increase the opening degree until the above difference reaches the preset difference ΔT. Step S2-2: If the difference between the supply water temperature T1 measured by the supply water temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32 is less than the preset difference ΔT, then the calculation control unit 1 controls the active valve 41 to reduce the opening until the above difference reaches the preset difference ΔT.

[0041] In this embodiment, after the water supply is completed, the water temperature gradually increases. The water temperature in the entire heating pipeline is constantly changing. One of the purposes of the calculation control unit 1 is to ensure that the difference between the supply water temperature T1 and the return water temperature T2 is maintained within a preset difference value ΔT. This ensures that the water temperature in the return water pipeline 23 does not fluctuate drastically when the water in the supply pipeline heats up, and also ensures that the heat dissipation of the heat dissipation end 22 does not fluctuate drastically, facilitating overall control and ensuring the stability of the entire heating network. The preset difference value ΔT is generally set between 8K and 15K; in this embodiment, 10K is used. The calculation control unit 1 dynamically adjusts the temperature by monitoring the difference between the supply water temperature T1 and the return water temperature T2 in real time. When the difference between the supply water temperature T1 and the return water temperature T2 is greater than the preset difference value ΔT, it indicates that the heat dissipation of the heat dissipation end 22 is large, and the heat demand is high. Therefore, the calculation control unit 1 controls the active valve 41 to increase its opening until the difference reaches the preset difference value ΔT. When the difference between the supply water temperature T1 and the return water temperature T2 is less than the preset difference ΔT, it indicates that the heat dissipation of the heat dissipation end 22 is small and the heat demand is small. Therefore, the calculation control unit 1 controls the active valve 41 to reduce the opening until the above difference reaches the preset difference ΔT, so as to ensure that the heating system operates in the most economical state.

[0042] Step S3, flow metering and heat metering operation steps: The calculation control unit 1 obtains the flow rate Qv based on the opening degree of the active valve 41 and the difference ΔP between the inlet pressure P1 and the outlet pressure P2 of the active valve 41, thus realizing flow metering; The calculation control unit 1 calculates the heat dissipation Q of the heat dissipation end 22 based on the flow rate Qv and the difference ΔT between the supply water temperature T1 measured by the supply water temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32, thus realizing heat metering.

[0043] The formula for calculating the flow rate Qv is as follows: In the formula: Cv represents the flow coefficient, which is related to the structure of the valve orifice. Since the flow coefficient is significantly affected by the structure, before leaving the factory, the relationship between the flow coefficient and the valve orifice opening can be measured experimentally to obtain a formula or a lookup table. This formula or lookup table is stored internally in the calculation and control unit 1. The calculation and control unit 1 obtains the corresponding flow coefficient value based on the valve orifice opening. A represents the effective flow area of ​​the valve orifice, which is related to the valve opening degree. This relationship varies depending on the shape of the valve orifice. The calculation control unit 1 can obtain the effective flow area of ​​the valve orifice based on its opening degree. ΔP represents the difference between the inlet pressure P1 and the outlet pressure P2 of the active valve 41. It is an inherent parameter of the active valve 41 and is built into the calculation and control unit 1. ρ represents the density of the water flowing through the valve orifice. The density of the water is related to the return water temperature, which is measured by the return water temperature sensor 32. The correlation between fluid density and return water temperature is stored in the calculation control unit 1. The calculation control unit 1 obtains the corresponding flow coefficient value based on the return water temperature.

[0044] The measurement of heat is specifically achieved using the thermal coefficient method, with the following formula: In the formula: k is the thermal coefficient; V is the cumulative volume flowing through the valve orifice, calculated from the cumulative flow rate Qv.

[0045] ρ is the density of the water flowing through the heat meter; Δh is the mass enthalpy difference of the medium in the heat exchange system at supply water temperature T1 and return water temperature T2.

[0046] The density ρ and enthalpy h of water need to be selected from a table. Specifically, the density and enthalpy of water can be obtained from Appendix A (normative appendix) of GB / T 32224-2020 "Heat Tables," and this data is built into the calculation control unit 1. When the temperature is not an integer, the density ρ and enthalpy h should be obtained using linear interpolation.

[0047] In step S3, the calculation control unit 1 can acquire and calculate the heat supply and flow rate in real time. Since the pressure difference ΔP between the inlet pressure P1 and outlet pressure P2 of the active valve 41 is an inherent parameter of the active valve 41 and does not change with the opening degree of the active valve 41, the pressure difference ΔP between the inlet and outlet of the active valve 41 can be obtained without a pressure gauge. This difference ΔP is stored in the calculation control unit 1. After the calculation control unit 1 obtains the cross-sectional area of ​​the active valve 41 based on its opening degree, it can obtain the real-time flow rate Qv. Furthermore, by using the difference ΔT between the supply water temperature T1 measured by the supply water temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32, the real-time heat dissipation Q of the heat dissipation end 22 is calculated, thus achieving heat measurement.

[0048] In step S3, if the water temperature in the water supply pipeline changes during steady-state operation, it will again achieve autonomous adjustment through step S2 to stabilize the difference between the supply water temperature T1 and the return water temperature T2 at the preset difference value ΔT, thus ensuring the stability of the entire heating system.

[0049] Preferably, in this embodiment, in step S1, the predetermined opening degree is set to the opening degree of the active valve 41 maintained by the system in the previous year during the flow metering and heat metering operation steps described above in step S3.

[0050] Specifically, during the previous year when the adaptive temperature control heat metering device was in step S3, the flow metering and heat metering operation step, its active valve 41 would maintain a stable predetermined opening. This predetermined opening data would be stored in the calculation control unit 1. When the heating season begins in the next year, and the adaptive temperature control heat metering device is in step S1, the cold operation / water supply step, the calculation control unit 1 controls the active valve 41 to maintain the aforementioned predetermined opening until water supply is completed and cold operation ends.

[0051] Of course, in other embodiments, the predetermined opening degree can also be set to any opening degree of the active valve 41 between its maximum opening degree and closed state. Since the cold operation / water filling step in step S1 is not for heating but only to fill the system with flowing water, it is sufficient to ensure that the active valve 41 is not closed. In actual use, in the first year of using the adaptive temperature control heat metering device, since the calculation control unit 1 does not store the predetermined opening degree data of the previous year, the predetermined opening degree can be set to any opening degree in the first year. In subsequent years, the predetermined opening degree adopts the opening degree of the active valve 41 maintained in step S3 of the previous year during the flow metering and heat metering operation steps.

[0052] Example 5: This embodiment provides an operation method applicable to the adaptive temperature control heat metering device in Embodiment 3, based on... Figure 3 As shown, the specific steps include the following: Step S1, Cold Operation / Water Supply Step: When the water supply temperature T1 measured by the water supply temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32 both do not exceed the preset lower limit of the water supply temperature, the calculation control unit 1 controls the active valve core to keep the active valve 41 at the predetermined opening until the water supply is completed and the cold operation ends.

[0053] Step S1 in this embodiment, the cold operation / water filling step, is the same as step S1 in embodiment 4, the cold operation / water filling step, and will not be described again.

[0054] Step S2, temperature control operation steps: When the water supply temperature T1 measured by the water supply temperature sensor 31 is greater than the preset lower limit of the water supply temperature, the calculation control unit 1 controls the opening of the active valve 41 to ensure that the water supply temperature T1 measured by the water supply temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32 reach the preset difference ΔT, and detects whether the indoor ambient temperature T3 detected by the indoor ambient temperature sensor 33 reaches the preset ambient temperature T0. If the indoor ambient temperature T3 detected by the indoor ambient temperature sensor 33 is equal to the preset ambient temperature T0, then proceed to step 4, the flow metering and heat metering operation steps. If the indoor ambient temperature T3 detected by the indoor ambient temperature sensor 33 is higher or lower than the preset ambient temperature T0, the calculation control unit 1 adjusts the indoor ambient temperature by controlling the opening of the active valve 41. The adjustment method dynamically adopts one of the following steps S3-1 and S3-2 according to different situations until the indoor ambient temperature T3 detected by the indoor ambient temperature sensor 33 is equal to the preset ambient temperature T0, and then proceeds to step 4, the flow metering and heat metering operation steps. Step S3-1: If the indoor ambient temperature T3 is lower than the indoor ambient temperature T0 that is predetermined through heating, the calculation control unit 1 controls the active valve 41 to increase the opening degree and abandons the condition that the supply water temperature T1 measured by the supply water temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32 reach the preset difference ΔT. At the same time, it checks whether the supply water temperature T1 is too low. Step S3-2: If the indoor ambient temperature T3 is higher than the indoor ambient temperature T0 that is predetermined through heating, the calculation control unit 1 controls the active valve 41 to reduce the opening degree and abandons the condition that the supply water temperature T1 measured by the supply water temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32 reach the preset difference ΔT. At the same time, it checks whether the supply water temperature T1 is too high.

[0055] In this embodiment, similarly, the water supply temperature gradually increases after the water supply is completed. The water temperature throughout the heating pipeline is constantly changing. One of the purposes of the calculation control unit 1 is to ensure that the difference between the supply water temperature T1 and the return water temperature T2 is maintained within a preset difference ΔT. This ensures that the water temperature in the return water pipeline 23 does not fluctuate drastically when the water in the supply pipeline heats up, and also ensures that the heat dissipation at the heat dissipation end 22 does not fluctuate drastically, facilitating overall control and ensuring the stability of the entire heating network. The preset difference ΔT is generally set between 8K and 15K; in this embodiment, 10K is used as the reference.

[0056] Unlike the scheme in Embodiment 4, since an indoor ambient temperature sensor 33 is present to detect the indoor ambient temperature T3, the calculation control unit 1 can determine whether the indoor ambient temperature T3 has reached the preset ambient temperature T0. If the indoor ambient temperature T3 deviates from the preset ambient temperature T0, the adjustment priority of the indoor ambient temperature T3 is increased to ensure user comfort, and the condition for the supply water temperature T1 measured by the supply water temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32 to reach the preset difference ΔT is abandoned. This is specifically achieved through steps S3-1 and S3-2. Since the preset difference ΔT deviates from the design value at this time, it is necessary to check whether the supply water temperature T1 is too high or too low. Specifically, the calculation control unit 1 can display the supply water temperature T1, the difference between the supply water temperature T1 and the return water temperature T2, and the indoor ambient temperature T3 on the display panel for the user to view, and send them remotely to the control center of the heating system for subsequent investigation by the staff.

[0057] It should be noted that even though the adjustment priority of indoor ambient temperature T3 is higher than the adjustment priority of the difference between supply water temperature T1 and return water temperature T2, it is necessary to ensure that the difference between supply water temperature T1 and return water temperature T2 does not fall below the minimum value of 1K or 2K specified in GB / T32224-2020 "Heat Meter".

[0058] Step S4, Flow and Heat Metering Operation Steps: The calculation control unit 1 calculates the flow rate Qv based on the opening degree of the active valve 41 and the difference ΔP between the inlet pressure P1 and the outlet pressure P2 of the active valve 41, thus achieving flow metering. The calculation control unit 1 also calculates the heat dissipation Q of the heat dissipation end 22 based on the flow rate Qv and the difference ΔT between the supply water temperature T1 measured by the supply water temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32, thus achieving heat metering. The metering methods for the flow rate Qv and heat dissipation Q in step S4 of this embodiment are the same as in step S3 of embodiment 4, and will not be repeated here.

[0059] In step S4, if the water temperature in the water supply pipeline changes during steady-state operation, or if the indoor ambient temperature T3 detected by the indoor ambient temperature sensor 33 deviates from the predetermined indoor ambient temperature T0 again, the system will again achieve autonomous adjustment through steps S2, S3-1 and S3-2 to ensure the stability of the entire heating system.

[0060] In step S1, the predetermined opening degree is set to the opening degree of the active valve 41 when the system maintained the above-mentioned step S4 during the flow metering and heat metering operation steps in the previous year; or, the predetermined opening degree is set to any opening degree of the active valve 41 between the maximum opening degree and the closed degree, which is the same as in embodiment 4, and will not be repeated here.

[0061] Furthermore, in step S2, if the difference between the water supply temperature T1 measured by the water supply temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32 is always lower than the preset difference ΔT, and reducing the opening of the active valve 41 cannot raise the difference between the water supply temperature T1 measured by the water supply temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32 to the preset difference ΔT, then the calculation control unit 1 issues a fault code and needs to check whether the water supply temperature is too low or whether a short circuit has occurred in the user system.

[0062] Similarly, in step S2, if the difference between the water supply temperature T1 measured by the water supply temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32 is always higher than the preset difference ΔT, and increasing the opening of the active valve 41 cannot reduce the difference between the water supply temperature T1 measured by the water supply temperature sensor 31 and the return water temperature T2 measured by the return water temperature sensor 32 to the preset difference ΔT, then the calculation control unit 1 issues a fault code and needs to check whether the system is blocked.

[0063] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An adaptive temperature-controlled heat metering device, comprising a calculation and control unit, and sequentially connected water inlet pipe, heat dissipation end, and return water pipe, characterized in that: A water supply temperature sensor is installed upstream of the heat dissipation end, a regulating valve group is installed in the return water pipeline, and a return water temperature sensor is installed downstream of the heat dissipation end. Both the water supply temperature sensor and the return water temperature sensor are connected to the computing control unit. The regulating valve assembly includes an active valve, a floating regulating chamber, and a passive valve. The heat dissipation end, the active valve, and the passive valve are connected sequentially. A floating piston is movably disposed in the floating regulating chamber, which is divided into regulating chamber one and regulating chamber two by the floating piston. An regulating spring is held between the floating piston and regulating chamber two. The inlet end of the active valve is connected to regulating chamber one, and the outlet end of the active valve is connected to regulating chamber two. The passive valve has a passive valve core. The active valve is controlled by the calculation and control unit, and the passive valve core is fixedly linked to the floating piston. When the calculation and control unit controls the active valve to reduce its opening, the floating piston moves toward the regulating chamber two under the action of the pressure difference, and the passive valve core moves in conjunction to reduce the opening of the passive valve so that the pressure difference between the inlet and outlet sides of the active valve remains unchanged. When the calculation and control unit controls the active valve to increase its opening, the floating piston moves toward the regulating chamber one under the action of the pressure difference and the regulating spring. The passive valve core is activated to increase the opening of the passive valve so that the pressure difference between the inlet and outlet sides of the active valve remains unchanged.

2. The adaptive temperature control heat metering device as described in claim 1, characterized in that: The inlet pipe, the heat dissipation end, and the return pipe are connected in sequence. The water supply temperature sensor is installed in the inlet pipe, and the return water temperature sensor is installed in the return water pipe.

3. The adaptive temperature control heat metering device as described in claim 1, characterized in that: It also includes a heat exchanger and a circulating pump. The heat exchanger has a heat dissipation channel and a heat absorption channel. The inlet water pipe, the heat dissipation channel and the return water pipe are connected in sequence. The heat dissipation end, the circulating pump and the heat absorption channel are connected in a closed loop. The water supply temperature sensor is installed between the downstream of the heat absorption channel and the upstream of the heat dissipation end. The return water temperature sensor is installed between the upstream of the heat absorption channel and the downstream of the heat dissipation end.

4. The adaptive temperature control heat metering device as described in claim 1, 2, or 3, characterized in that: It also includes an indoor ambient temperature sensor installed in the heating environment, which is connected to the computing control unit.

5. The adaptive temperature control heat metering device as described in claim 4, characterized in that: The computing control unit is equipped with a communication interface. The computing control unit includes a microcontroller, a digital encoder, a room temperature comparator, a supply and return water temperature comparator, a clock module, and a Bluetooth module. The digital encoder, the room temperature comparator, the supply and return water temperature comparator, the clock module, and the Bluetooth module are all connected to the microcontroller.

6. A method for operating an adaptive temperature-controlled heat metering device, characterized in that: The adaptive temperature control heat metering device as described in claim 1, 2, or 3 specifically includes the following steps: Step S1, Cold Operation / Water Supply Step: When the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor both do not exceed the preset lower limit of the supply water temperature, the calculation and control unit controls the active valve core to keep the active valve at a predetermined opening until the water supply is completed and the cold operation ends. Step S2, Temperature Control Operation Steps: When the supply water temperature T1 measured by the supply water temperature sensor is greater than the preset lower limit of the supply water temperature, the calculation and control unit ensures that the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor reach the preset difference ΔT by controlling the opening of the active valve. Specifically, depending on different situations, the following steps S2-1 or S2-2 are dynamically adopted: Step S2-1: If the difference between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor is greater than the preset difference ΔT, then the control unit controls the active valve to increase the opening until the above difference reaches the preset difference ΔT. Step S2-2: If the difference between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor is less than the preset difference ΔT, then the calculation control unit controls the active valve to reduce the opening until the above difference reaches the preset difference ΔT. Step S3, flow metering and heat metering operation steps: The calculation control unit calculates the flow value Qv based on the opening degree of the active valve and the difference ΔP between the pressure P1 at the inlet end and P2 at the outlet end of the active valve, thereby realizing flow metering. The calculation and control unit calculates the heat dissipation Q at the heat dissipation end based on the flow rate Qv and the difference ΔT between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor, thereby realizing heat measurement.

7. The operating method of the adaptive temperature control heat metering device as described in claim 6, characterized in that: In step S1, the predetermined opening degree is set to the opening degree of the active valve when the system maintained the above-mentioned step S3 during the flow metering and heat metering operation steps in the previous year; or, the predetermined opening degree is set to any opening degree of the active valve between the maximum opening degree and the closed state.

8. A method for operating an adaptive temperature-controlled heat metering device, characterized in that: The adaptive temperature control heat metering device as described in claim 4 or 5 specifically includes the following steps: Step S1, Cold Operation / Water Supply Step: When the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor both do not exceed the preset lower limit of the supply water temperature, the calculation and control unit controls the active valve core to keep the active valve at a predetermined opening until the water supply is completed and the cold operation ends. Step S2, Temperature Control Operation Step: When the water supply temperature T1 measured by the water supply temperature sensor is greater than the preset lower limit of the water supply temperature, the calculation control unit ensures that the water supply temperature T1 measured by the water supply temperature sensor and the return water temperature T2 measured by the return water temperature sensor reach the preset difference ΔT by controlling the opening of the active valve, and detects whether the indoor ambient temperature T3 detected by the indoor ambient temperature sensor reaches the preset ambient temperature T0. If the indoor ambient temperature T3 detected by the indoor ambient temperature sensor is equal to the preset ambient temperature T0, then proceed to step 4, the flow metering and heat metering operation steps. If the indoor ambient temperature T3 detected by the indoor ambient temperature sensor is higher or lower than the preset ambient temperature T0, the calculation control unit adjusts the indoor ambient temperature by controlling the opening of the active valve. The adjustment method dynamically adopts one of the following steps S3-1 and S3-2 according to different situations until the indoor ambient temperature T3 detected by the indoor ambient temperature sensor is equal to the preset ambient temperature T0. Then, it proceeds to step 4, the flow metering and heat metering operation steps. Step S3-1: If the indoor ambient temperature T3 is lower than the indoor ambient temperature T0 that is predetermined through heating, the calculation control unit controls the active valve to increase the opening degree and abandons the condition that the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor reach the preset difference ΔT. At the same time, it checks whether the supply water temperature T1 is too low. Step S3-2: If the indoor ambient temperature T3 is higher than the indoor ambient temperature T0 that is predetermined through heating, the calculation control unit controls the active valve to reduce the opening degree and abandons the condition that the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor reach the preset difference ΔT. At the same time, it checks whether the supply water temperature T1 is too high. Step S4, flow metering and heat metering operation steps: The calculation control unit obtains the flow value Qv based on the opening degree of the active valve and the difference ΔP between the pressure P1 at the inlet end and P2 at the outlet end of the active valve, thus realizing flow metering. The calculation and control unit calculates the heat dissipation Q at the heat dissipation end based on the flow rate Qv and the difference ΔT between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor, thereby realizing heat measurement.

9. The operating method of the adaptive temperature control heat metering device as described in claim 8, characterized in that: In step S1, the predetermined opening degree is set to the opening degree of the active valve when the system maintained the above-mentioned step S4, the flow metering and heat metering operation steps in the previous year; or, the predetermined opening degree is set to any opening degree of the active valve between the maximum opening degree and the closed state.

10. The operating method of the adaptive temperature control heat metering device as described in claim 8, characterized in that: In step S2, if the difference between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor is always lower than the preset difference ΔT, and reducing the opening of the active valve cannot raise the difference between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor to the preset difference ΔT, then the calculation control unit issues a fault code to check whether the supply water temperature is too low or whether a short circuit has occurred in the user system. In step S2, if the difference between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor is always higher than the preset difference ΔT, and increasing the opening of the active valve cannot reduce the difference between the supply water temperature T1 measured by the supply water temperature sensor and the return water temperature T2 measured by the return water temperature sensor to the preset difference ΔT, then the calculation control unit issues a fault code to check whether there is a blockage in the system.

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