CN115493177B

CN115493177B - Distributed heat energy control system, method and device and electronic equipment

Info

Publication number: CN115493177B
Application number: CN202211420549.7A
Authority: CN
Inventors: 何晋章; 张城
Original assignee: Beijing Shenshi Environmental Technology Co ltd
Current assignee: Beijing Shenshi Environmental Technology Co ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-03-14
Anticipated expiration: 2042-11-15
Also published as: CN115493177A

Abstract

The application provides a distributed heat energy control system, a method, a device and an electronic device, wherein the system comprises: the system comprises a hot end, a valve, a heat energy sensor, a controller, a cold end and a data analysis platform; the heat energy sensor is contacted with the hot end and the cold end and is used for acquiring the numerical value of the temperature difference between the hot end and the cold end; the heat energy sensor is connected with the controller and used for sending the numerical value to the controller; the controller is connected with the data analysis platform and used for receiving a first preset threshold value sent by the data analysis platform and sending a numerical value to the data analysis platform under the condition of receiving the numerical value; the controller is connected with the valve and used for sending a control instruction to the valve under the condition that the numerical value is smaller than a first preset threshold value; the valve is arranged in the hot end and used for controlling the size of the heat energy provided by the hot end according to the control instruction. Through the application, the problems that a traditional temperature sensor needs a working power supply, is overlarge in size and has high requirement on the data processing capacity of the controller are solved.

Description

Distributed heat energy control system, method and device and electronic equipment

Technical Field

The invention relates to the technical field of distributed heat supply and energy conservation, in particular to a distributed heat energy control system, method and device and electronic equipment.

Background

Heat supply is a key process link for ensuring whether a large number of industrial enterprises can normally produce, and is also a key guarantee for vast residents to smoothly pass through cold winter seasons. Therefore, heat supply becomes a main energy consumption link in human industrial activities and daily life. However, the current energy saving technology mainly reflects on how to improve the heat supply efficiency, such as improving the utilization rate of coal, improving the conversion efficiency of solar energy, and the like, and currently, there is a fresh energy saving technology in the links of energy saving and consumption reduction. In the centralized heating process of residents, because a heating pipeline is complex, a heating unit is a heating unit, namely the star chess cloth. Because the heat supply flow, the temperature of registering one's residence are all fixed, even if the heating unit indoor temperature has reached the demand, still can be according to the program operation of setting for at the heating source like the boiler, unable each heating unit heat energy of accurate control to lead to huge energy waste. In the process of production and heat supply of industrial enterprises, similar problems also exist. In addition, the control of the heating system in a large range often brings social contradiction between supply and demand because of large influence range. Therefore, distributed and accurate control of heat energy supply in each industrial link and living heating link is enhanced, the aims of energy conservation and consumption reduction are achieved, good economic benefits are obtained, a harmonious supply and demand relationship is realized, and social benefits are achieved.

The existing heat energy control technology needs to monitor the temperature of a heated environment and the temperature of heat supply synchronously and then control the heat supply flow in real time according to the temperature difference between the heated environment and the heat supply temperature. On the one hand, the prior art adopts traditional temperature sensor (such as thermal resistance, thermocouple etc.), need provide working power supply for it, leads to the wiring complicated, in addition, behind temperature sensor plus working power supply, signal acquisition and the output function module, with high costs, the size is bigger, is unfavorable for installation and fortune dimension, does not have the commonality. On the other hand, the prior art also needs to process the temperature difference between the heating temperature and the heated environment temperature at each monitoring position and the temperature gradient field analysis, so when the number of common sensors is large, a controller is required to have high data processing capacity, which in turn leads to the increase of the cost of the controller.

Disclosure of Invention

The application provides a distributed heat energy control system, a distributed heat energy control method, a distributed heat energy control device and electronic equipment, and aims to at least solve the problems that a traditional temperature sensor needs a working power supply, is overlarge in size, is high in installation and operation and maintenance difficulty and has an overlarge demand on data processing capacity of a controller in the related art.

According to an aspect of an embodiment of the present application, there is provided a distributed thermal energy control system, the system comprising: the system comprises a hot end, a valve, a heat energy sensor, a controller, a cold end and a data analysis platform; the heat energy sensor is in contact with the hot end and the cold end and is used for acquiring a numerical value of temperature difference between the hot end and the cold end; the heat energy sensor is connected with the controller and used for sending the numerical value to the controller; the controller is connected with the data analysis platform and used for receiving a first preset threshold value sent by the data analysis platform and sending the numerical value to the data analysis platform under the condition of receiving the numerical value, wherein the first preset threshold value is used for determining whether to control the size of the heat energy provided by the hot end; the controller is connected with the valve and used for sending a control instruction to the valve under the condition that the numerical value is smaller than the first preset threshold value; the valve is arranged in the hot end and used for controlling the size of the heat energy provided by the hot end according to the control instruction.

Optionally, the thermal energy sensor comprises: the device comprises a communication module, a logic control module, an energy storage component, a first switch, a second switch, a boost conversion module, a thermoelectric conversion module and a voltage detection module; the thermoelectric conversion module is in contact with the hot end and the cold end and used for converting the temperature difference between the hot end and the cold end into electromotive force based on a first preset formula; the boost conversion module is connected with the thermoelectric conversion module and is used for boosting the electromotive force; the boost conversion module is connected with the energy storage component and is used for transmitting the boosted electromotive force to the energy storage component; the energy storage component is connected with the logic control module and the second switch and used for supplying power to the logic control module under the condition that the second switch is closed; the energy storage component is connected with the first switch and the communication module and used for supplying power to the communication module under the condition that the first switch and the second switch are both closed; the voltage detection module is connected with the energy storage component and used for judging whether the electromotive force stored by the energy storage component is larger than a second preset threshold value, wherein the second preset threshold value is a critical value for generating the numerical value of the temperature difference; the voltage detection module is connected with the second switch and used for closing the second switch when the electromotive force stored by the energy storage component is greater than a second preset threshold value; the logic control module is connected with the thermoelectric conversion module and used for collecting the electromotive force of the thermoelectric conversion module under the condition that the second switch is closed and obtaining the numerical value of the temperature difference according to the electromotive force, the first preset formula and a preset constant; the logic control module is connected with the first switch and used for closing the first switch after the numerical value is obtained; the logic control module is connected with the communication module and used for transmitting the numerical value to the communication module under the condition that the first switch is closed; the communication module is connected with the controller and used for sending the numerical value to the controller after the numerical value is obtained, and sending the new preset parameter to the logic control module under the condition of receiving the new preset parameter from the data analysis platform forwarded by the controller.

Optionally, the thermoelectric conversion module includes: a first conductive element and a second conductive element; two ends of the first conductive unit are respectively arranged at the hot end and the cold end, and two ends of the second conductive unit are respectively arranged at the hot end and the cold end; the first conductive unit is arranged at one end of the hot end and connected with the second conductive unit at one end of the hot end; one end of the first conductive unit arranged at the cold end is not connected with one end of the second conductive unit arranged at the cold end; the first conductive unit and the second conductive unit form a closed loop, and the first conductive unit and the second conductive unit are used for converting the temperature difference between the cold end and the hot end into the electromotive force.

Optionally, the logic control module comprises: the device comprises a control unit and a collecting unit; the acquisition unit is connected with the thermoelectric conversion module and used for acquiring the electromotive force of the thermoelectric conversion module and obtaining a numerical value of the temperature difference according to the electromotive force, the first preset formula and a preset constant; the control unit is connected with the first switch and used for closing the first switch after the acquisition unit obtains the numerical value; the control unit is connected with the communication module and used for transmitting the numerical value to the communication module under the condition that the first switch is closed.

According to another aspect of the embodiments of the present application, there is also provided a distributed thermal energy control method, including:

under the condition that temperature difference exists between the hot end and the cold end and the first conductive unit and the second conductive unit form a closed loop, acquiring a numerical value of the temperature difference;

judging whether the numerical value is smaller than a first preset threshold value, wherein the first preset threshold value is used for determining whether to control the size of the heat energy provided by the hot end;

and controlling the heat energy provided by the hot end under the condition that the numerical value is smaller than the first preset threshold value.

There is also provided, in accordance with another aspect of an embodiment of the present application, a distributed thermal energy control apparatus, including:

the acquisition module is used for acquiring the numerical value of the temperature difference under the condition that the temperature difference exists between the hot end and the cold end and the first conductive unit and the second conductive unit form a closed loop;

the judging module is used for judging whether the numerical value is smaller than a first preset threshold value, wherein the first preset threshold value is used for determining whether to control the size of the heat energy provided by the hot end;

and the control module is used for controlling the heat energy provided by the hot end under the condition that the numerical value is smaller than the first preset threshold value.

Optionally, the obtaining module includes:

the generating unit is used for generating electromotive force under the condition that the hot end and the cold end have temperature difference and the first conductive unit and the second conductive unit form a closed loop;

a first obtaining unit configured to perform boosting processing on the electromotive force to obtain a boosted electromotive force;

a second obtaining unit configured to store the boosted electromotive force to obtain a stored electromotive force;

a judging unit, configured to judge whether the stored electromotive force is greater than a second preset threshold, where the second preset threshold is a critical value that generates a value of the temperature difference;

and the third obtaining unit is used for obtaining the numerical value of the temperature difference according to the electromotive force, a first preset formula and preset parameters under the condition that the stored electromotive force is larger than the second preset threshold value.

Optionally, the third obtaining unit includes:

the first obtaining submodule is used for obtaining current environment data;

the second obtaining submodule is used for obtaining the current parameters under the condition that the current environment data is determined to be inconsistent with the known environment data;

the judging submodule is used for judging whether the preset parameter is consistent with the current parameter or not;

and the updating submodule is used for updating the preset parameters into the current parameters under the condition that the preset parameters are determined to be inconsistent with the current parameters.

According to another aspect of the embodiments of the present application, there is also provided an electronic device, including a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory communicate with each other through the communication bus; wherein the memory is used for storing the computer program; a processor for performing the method steps in any of the above embodiments by running the computer program stored on the memory.

According to a further aspect of the embodiments of the present application, there is also provided a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to perform the method steps of any of the above embodiments when the computer program is executed.

In the embodiment of the application, the heat energy sensor is in contact with the hot end and the cold end and is used for acquiring the numerical value of the temperature difference between the hot end and the cold end; the heat energy sensor is connected with the controller and used for sending the numerical value to the controller; the controller is connected with the data analysis platform and used for receiving a first preset threshold value sent by the data analysis platform and sending a numerical value to the data analysis platform under the condition of receiving the numerical value, wherein the first preset threshold value is used for determining whether to control the heat energy provided by the hot end; the controller is connected with the valve and used for sending a control instruction to the valve under the condition that the numerical value is smaller than a first preset threshold value; the valve is arranged in the hot end and used for controlling the size of the heat energy provided by the hot end according to the control instruction. Because this application embodiment utilizes heat energy sensor to convert the temperature difference between hot junction and the cold junction into the electromotive force earlier, obtains the specific numerical value of temperature difference according to the electromotive force again, later utilizes the controller to compare temperature difference numerical value and first preset threshold value, and then control valve switch realizes the control to heat energy. On the one hand, heat energy sensor can convert the temperature difference into the electromotive force, need not external power supply, promptly adorns promptly, does not receive installation space, lacks the power influence, consequently, this application can every equipment or the user heat energy condition of being heated of accurate monitoring to realize distributed heat energy control. On the other hand, the temperature of each heat supply link is not required to be monitored, but the temperature difference between the hot end and the cold end is monitored, so that the using amount of the sensor is greatly reduced, the requirement on the data processing capacity of a controller and a data analysis platform is lowered, and the cost is also lowered. The problem of in the correlation technique have the working power supply that needs to adopt traditional temperature sensor, oversize and the data processing ability demand of controller is too high is solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic block diagram of an alternative distributed thermal energy control system according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an alternative thermal energy sensor according to an embodiment of the present application;

FIG. 3 is a schematic diagram of an alternative thermoelectric conversion module according to an embodiment of the present application;

FIG. 4 is a schematic flow diagram of an alternative distributed thermal energy control method according to an embodiment of the present application;

FIG. 5 is a schematic flow diagram of an alternative distributed thermal energy control method according to an embodiment of the present application;

FIG. 6 is a block diagram of an alternative distributed thermal energy control apparatus according to an embodiment of the present application;

fig. 7 is a block diagram of an alternative electronic device according to an embodiment of the present application.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

There are two problems with conventional sensors, the first requiring a source of operating power. Heating management is complicated and changeable, and branches are many, for example, in a room with three rooms, two halls and two toilets, at least 8 groups of heaters (one group for each bedroom, one group for each toilet, one group for each guest and restaurant, and one group for each kitchen) are needed, and then at least 8 groups of sensors are needed. When the sensors are arranged in the scattered space, the power supply wiring is complex, the workload of installation and operation and maintenance is large, and the cost is high. The second sensor is large in size and cannot be installed in many occasions, such as heat supply pipelines and living environments of industrial enterprise production lines. In the traditional control technology, a controller is used for monitoring the heat supply temperature and the temperature of a heated environment in real time to control the heat supply flow. Because the temperature of each monitored position is processed (each position has 2 sensors, one is used for detecting the heat supply temperature and the other is used for detecting the temperature of the heated environment), and each temperature difference is processed and temperature gradient field analysis is carried out, when the number of common sensors is large, a controller is required to have high data processing capacity, and the cost of the controller is increased. To sum up, the power supply requirement of the common sensor needs to be solved, the size of the common sensor needs to be reduced, and the heat needs to be controlled according to the temperature difference between the heated environment and the heating temperature so as to reduce the cost of the controller.

Based on the above, according to an aspect of an embodiment of the present application, there is provided a distributed thermal energy control system, which may include: the system comprises a hot end, a valve, a heat energy sensor, a controller, a cold end and a data analysis platform;

the heat energy sensor is contacted with the hot end and the cold end and is used for acquiring the numerical value of the temperature difference between the hot end and the cold end;

the heat energy sensor is connected with the controller and used for sending the numerical value to the controller;

the controller is connected with the data analysis platform and used for receiving a first preset threshold value sent by the data analysis platform and sending a numerical value to the data analysis platform under the condition of receiving the numerical value, wherein the first preset threshold value is used for determining whether to control the heat energy provided by the hot end;

the controller is connected with the valve and used for sending a control instruction to the valve under the condition that the numerical value is smaller than a first preset threshold value;

the valve is arranged in the hot end and used for controlling the size of the heat energy provided by the hot end according to the control instruction.

Alternatively, as shown in fig. 1, the heat supply pipeline in fig. 1 is a Hot end (Hot Terminal), a boiler in a heat supply room heats water or steam, and the heated water or steam supplies heat to a heated space or production equipment through the heat supply pipeline. The valve is installed on the heat supply pipeline and can control the flow of hot water or steam in the heat supply pipeline. The heated space or the production equipment is a Cold Terminal (Cold Terminal), the remote data analysis platform is a data analysis platform, the hot Terminal is a heat supply Terminal, the Cold Terminal is a heated Terminal, and the hot Terminal is used for supplying heat to the Cold Terminal.

The data analysis platform issues an instruction to the controller to enable the temperature difference threshold value

Sending the Seeback constant to the controller and storing the Seeback constant, namely the preset constant and the temperature difference threshold value

Namely a first preset threshold value, which is set,

the constant is determined by the data analysis platform according to the energy-saving target of relevant departments and the universal standard and regulation of heating and supplying.

After the heating system is started, under the condition that the hot end and the cold end have temperature difference, the heat energy sensor converts the temperature difference into electromotive force based on a Seeback (Seeback) effect, and then a specific numerical value of the temperature difference can be calculated according to a Seebeck formula and a preset constant, wherein the numerical value is sent to the controller by a formula (1), namely the Seebeck formula.

（1）

Wherein, V is the electromotive force output by the thermoelectric conversion component, a is a Seebeck constant, namely a preset constant, and Delta T is a specific value of the temperature difference between the hot end and the cold end.

The controller receives the specific value of the temperature difference, namely delta T, and judges the value of the temperature difference, and when the delta T is smaller than a first preset threshold value, namely (delta T <, delta T)

) When the temperature is higher than the set temperature, the controller sends a heat supply control instruction to the valve to control the valve to reduce the flow of hot water or steam. Wherein the strategy of reducing the flow of hot water or steam includes but is not limited toWithout limitation: determining a step of descent of, for example, 5% (but also other values), the flow of hot water or steam being lowered 5% at a time, for a period of time, for example, 60 minutes, if the newly obtained Δ T is still less than

The control valve reduces the flow of hot water or steam by 5% again, and the process continues until the delta T is ≧

And (4) ending the time, in addition, after receiving the delta T, the controller forwards the delta T to the data analysis platform, and the controller can locally or remotely control the valve.

In the embodiment of the application, the temperature difference between the hot end and the cold end is converted into the electromotive force by the heat energy sensor, the specific numerical value of the temperature difference is obtained according to the electromotive force, and then the temperature difference numerical value and a first preset threshold value are compared by the controller, so that the control of the valve switch on the heat energy is realized. On the one hand, the heat energy sensor can convert the temperature difference into electromotive force, does not need external power supply, and the dress promptly that promptly does not receive installation space, lacks the power influence. Therefore, the heat energy condition of each heated device or user can be accurately monitored, and distributed heat energy control is achieved. On the other hand, the temperature of each heat supply link is not required to be monitored, but the temperature difference between the hot end and the cold end is monitored, so that the using amount of the sensor is greatly reduced, the cost of the whole system is reduced, the requirement on the data processing capacity of the controller and the data analysis platform is reduced, and the cost is also reduced. The problem of in the correlation technique have the working power supply that needs to adopt traditional temperature sensor, oversize and the data processing ability demand of controller is too high is solved.

As an alternative embodiment, the thermal energy sensor may comprise: the device comprises a communication module, a logic control module, an energy storage component, a first switch, a second switch, a boost conversion module, a thermoelectric conversion module and a voltage detection module;

the thermoelectric conversion module is in contact with the hot end and the cold end and used for converting the temperature difference between the hot end and the cold end into electromotive force based on a first preset formula;

the boost conversion module is connected with the thermoelectric conversion module and is used for boosting and processing electromotive force;

the boost conversion module is connected with the energy storage component and is used for transmitting the boosted electromotive force to the energy storage component;

the energy storage component is connected with the logic control module and the second switch and used for supplying power to the logic control module under the condition that the second switch is closed;

the energy storage component is connected with the first switch and the communication module and used for supplying power to the communication module under the condition that the first switch and the second switch are both closed;

the voltage detection module is connected with the energy storage component and used for judging whether the electromotive force stored by the energy storage component is larger than a second preset threshold value, wherein the second preset threshold value is a critical value of a numerical value for generating a temperature difference;

the voltage detection module is connected with the second switch and is used for closing the second switch when the electromotive force stored by the energy storage component is greater than a second preset threshold value;

the logic control module is connected with the thermoelectric conversion module and used for collecting the electromotive force of the thermoelectric conversion module under the condition that the second switch is closed and obtaining a numerical value of the temperature difference according to the electromotive force, a first preset formula and a preset constant;

the logic control module is connected with the first switch and used for closing the first switch after the numerical value is obtained;

the logic control module is connected with the communication module and used for transmitting the numerical value to the communication module under the condition that the first switch is closed;

the communication module is connected with the controller and used for sending the numerical value to the controller after the numerical value is obtained, and sending the new preset parameter to the logic control module under the condition that the new preset parameter from the data analysis platform forwarded by the controller is received.

Alternatively, as shown in fig. 2, K1 in fig. 2 is an electronic switch, i.e., a first switch, and K2 is an electronic switch, i.e., a second switch.

After the heating system is started, under the condition that the hot end and the cold end have temperature difference, the thermoelectric conversion module converts the temperature difference into electromotive force based on the Seeback (Seeback) effect.

The boost conversion module boosts the electromotive force, wherein the boost conversion module adopts a micro-power design and boosts a weak electromotive force pump to a higher electromotive force based on a common charge pump boost principle.

The boosted electromotive force is stored in the energy storage component C, the electromotive force is weak due to the fact that the thermoelectric conversion obtains electric energy, the electromotive force is stored in the energy storage component C in a slow process, the process is few seconds and many minutes, and the energy storage time depends on the temperature difference between the hot end and the cold end and the size of the thermoelectric conversion component.

The voltage detection module detects the electromotive force stored in the energy storage component C, and when the stored electromotive force exceeds 1.8V, the voltage detection module outputs a control signal to the first switch K1 to control the K1 to be closed, wherein 1.8V is a second preset threshold value, and 1.8V can also be adjusted into other values. After K1 is closed, the energy storage component supplies power to the logic control module, and the logic control module obtains a working power supply and starts working.

After the logic control module is started, firstly, the electromotive force output by the thermoelectric conversion module is collected, and the numerical value of the temperature difference is obtained according to the formula (1) and a preset constant a. And then, the logic control module controls the second switch K2 to be closed, the numerical value is transmitted to the communication module, and the communication module uploads the numerical value to the controller, wherein the uploading mode can be wired communication or wireless communication.

After K1 and K2 are both closed, the energy storage component supplies power to the communication module, the electric energy on the energy storage component C is exhausted within a short time because the communication module is opened, therefore, the communication module needs to upload the temperature difference information to the controller within a short time and forwards the temperature difference information to the data analysis platform through the controller, and after the electric energy of the energy storage component C is exhausted, the communication module and the logic control module are automatically closed.

After the communication module transmits the value to the communication module, the heat energy sensor enters a new cycle, and the process is repeated to enter the next temperature difference information uploading process.

In addition, if the Seebeck constant a has deviation (the deviation of the constant a is caused by the change of the use environment of the sensor such as dust), the data analysis platform sends the new Seebeck constant a to the controller, and forwards the new Seebeck constant a to the heat energy sensor when the controller receives the temperature difference information uploaded by the sensor, and the logic control module of the heat energy sensor stores the new constant, so that the new constant can be collected and calculated in new monitoring to obtain more accurate temperature difference information.

In the embodiment of the application, on one hand, the heat energy sensor is based on the thermoelectric conversion and energy storage conversion technology of the Seeback effect, external power supply is not needed, and the requirements of low cost and miniaturization are met. On the other hand, through the cooperation of the weak self-power-taking technology and the wireless communication, wiring is not needed between the sensor and the controller, the installation and operation and maintenance are simple, the cost is low, the heat energy sensor can be installed immediately after being used, and the heat energy sensor is not influenced by an installation space and a power supply. The problems that a traditional temperature sensor needs a working power supply, is overlarge in size, is not easy to install, operate and maintain and is high in cost in the related technology are solved.

As an alternative embodiment, the thermoelectric conversion module may include: a first conductive element and a second conductive element;

two ends of the first conductive unit are respectively arranged at the hot end and the cold end, and two ends of the second conductive unit are respectively arranged at the hot end and the cold end;

one end of the first conductive unit arranged at the hot end is connected with one end of the second conductive unit arranged at the hot end;

one end of the first conductive unit arranged at the cold end is not connected with one end of the second conductive unit arranged at the cold end;

the first conductive unit and the second conductive unit form a closed loop, and the first conductive unit and the second conductive unit are used for converting the temperature difference between the cold end and the hot end into electromotive force.

Optionally, the thermoelectric conversion module is a closed loop formed by any two different conductors or semiconductors, one end of each of the two conductors or semiconductors is connected and placed at the hot end, the other end is in a non-connected state and placed at the cold end, and the two conductors or semiconductors are connected with the load R to form an electron and carrier path, so as to output electromotive force. Two conductors or semiconductors are the first conductive element and the second conductive element.

Fig. 3 illustrates a thermoelectric conversion principle structure by taking two semiconductor materials as an example, as shown in fig. 3, in the case that there is a temperature difference between the cold side and the hot side, an N-type semiconductor generates electrons in a downward direction, and a P-type semiconductor generates carriers in a downward direction. Since the direction of current flow is opposite to the direction of electron flow, and the same as the direction of carriers, the direction of current flow generated by the two semiconductors is: the cold end of the N-type semiconductor, the hot end of the P-type semiconductor and the cold end of the P-type semiconductor generate electromotive force.

In addition, the principle of thermoelectric conversion of two metal materials is the same as that of the above-described two semiconductors.

In the embodiment of the application, the thermoelectric conversion technology is realized based on the Seeback effect, the sensor does not need external power supply, the miniaturization and the low cost of the sensor are realized, more importantly, the sensor is installed immediately after use, the application is very convenient, and the equipment guarantee is provided for the realization of a distributed energy-saving system.

As an alternative embodiment, the logic control module comprises: the device comprises a control unit and a collecting unit;

the acquisition unit is connected with the thermoelectric conversion module and used for acquiring the electromotive force of the thermoelectric conversion module and obtaining a numerical value of the temperature difference according to the electromotive force, a first preset formula and a preset constant;

the control unit is connected with the first switch and used for closing the first switch after the acquisition unit obtains the numerical value;

the control unit is connected with the communication module and used for transmitting the numerical value to the communication module under the condition that the first switch is closed.

Optionally, the collecting unit collects the electromotive force V output by the thermoelectric conversion module, and obtains a numerical value of the temperature difference according to the formula (1) and a preset constant a;

after the acquisition unit finishes signal acquisition and calculation, the control unit controls the electronic switch K2 to be closed, transmits the value to the communication module, and uploads the temperature difference information to the controller by the communication module, wherein the uploading mode can be wired communication or wireless communication;

in the embodiment of the application, the correlation between the temperature difference and the electromotive force is established through the Seebeck effect formula, the specific numerical value of the temperature difference can be directly obtained through the electromotive force, the temperature of each heat supply link is not required to be monitored, the temperature difference between the heat supply body and the heated body is monitored, the using amount of the sensor is greatly reduced, the requirement on the data processing capacity of the controller and the data analysis platform is reduced, and the cost is also reduced.

According to another aspect of the embodiments of the present application, there is also provided a distributed thermal energy control method, as shown in fig. 4, where fig. 4 is a schematic flow chart of an alternative distributed thermal energy control method according to the embodiments of the present application, the method includes:

step S401, under the condition that temperature difference exists between the hot end and the cold end and the first conductive unit and the second conductive unit form a closed loop, obtaining a numerical value of the temperature difference.

Optionally, in the case that there is a temperature difference between the hot end and the cold end and the first conductive unit and the second conductive unit form a closed loop, the value of the temperature difference is obtained by using the thermal energy sensor.

Step S402, determining whether the value is smaller than a first preset threshold, where the first preset threshold is used to determine whether to control the amount of heat energy provided by the hot end.

Optionally, the controller is used to determine whether the value is smaller than a first preset threshold value(s) issued by the data analysis product platform

）。

Step S403, controlling the amount of heat energy provided by the hot end when the value is smaller than the first preset threshold.

Alternatively, when Δ T is less than a first preset threshold value (Δ T <) the method may further comprise

) When the temperature is higher than the set temperature, the controller sends a heat supply control instruction to the valve to control the valve to reduce the flow of hot water or steam. Wherein the hot water is reduced orStrategies for steam flow include, but are not limited to: determining a step of descent of, for example, 5% (but also other values), the flow of hot water or steam being lowered 5% at a time, for a period of time, for example, 60 minutes, if the newly obtained Δ T is still less than

And the time is over, and in addition, the controller forwards the delta T to the data analysis platform after receiving the delta T.

In the embodiment of the application, the value of the temperature difference between the hot end and the cold end is directly obtained by using the heat energy sensor, the heat energy provided by the hot end is controlled according to the value and the first preset threshold value, the temperature of each heat supply link is not required to be monitored, but the temperature difference between the heat supply body and the heated body is monitored, the use amount of the sensor is greatly reduced, the requirement on the data processing capacity of the controller and the data analysis platform is reduced, and the cost is also reduced. In addition, distributed heat supply control is realized, namely the heating capacity control is carried out on the tail end node, namely the single cold end, in the heat supply system, the accurate energy-saving technology is realized through non-traditional regional heat supply control, the social contradiction caused by regional or large-range heat supply control is avoided, the harmonious relation between heat supply and heating is realized, and good social benefits are created.

As an alternative embodiment, in the case that there is a temperature difference between the hot end and the cold end and the first conductive element and the second conductive element form a closed loop, obtaining the value of the temperature difference includes:

generating electromotive force under the condition that temperature difference exists between the hot end and the cold end and the first conductive unit and the second conductive unit form a closed loop;

boosting the electromotive force to obtain boosted electromotive force;

storing the boosted electromotive force to obtain the stored electromotive force;

judging whether the stored electromotive force is larger than a second preset threshold value, wherein the second preset threshold value is a critical value of a numerical value for generating the temperature difference;

and under the condition that the stored electromotive force is larger than a second preset threshold value, obtaining a numerical value of the temperature difference according to the electromotive force, the first preset formula and preset parameters.

Optionally, for a specific implementation manner of the embodiment of the present application, reference may be made to the content of the thermal energy sensor, which is not described herein again.

In the embodiment of the application, on one hand, the heat energy sensor is based on the thermoelectric conversion and energy storage conversion technology of the Seeback effect, external power supply is not needed, and the requirements of low cost and miniaturization are met. On the other hand, through the cooperation of the weak self-power-taking technology and the wireless communication, wiring is not needed between the sensor and the controller, the installation and operation and maintenance cost is low, the heat energy sensor can be installed immediately after use, and the heat energy sensor is not influenced by installation space and a power supply. The problem of exist in the correlation technique to adopt traditional temperature sensor to need work power, oversize is solved.

As an alternative embodiment, before obtaining the value of the temperature difference according to the electromotive force, the first preset formula and the preset parameter, the method further comprises:

acquiring current environment data;

under the condition that the current environment data is determined to be inconsistent with the known environment data, obtaining current parameters;

judging whether the preset parameters are consistent with the current parameters or not;

and under the condition that the preset parameters are determined to be inconsistent with the current parameters, updating the preset parameters to the current parameters.

Alternatively, a change in the use environment of the thermal energy sensor, such as accumulation of dust on the thermal energy sensor, may cause a deviation in the seebeck constant a, which is a preset parameter.

And judging whether the environment change occurs to the thermal energy sensor by using the current environment data and the previous known environment data.

Under the condition that the environment of the heat energy sensor changes, a new Seebeck constant, namely a current parameter, is generated through the data analysis platform, if a deviation exists between the newly generated Seebeck constant and a preset parameter, the data analysis platform issues the current parameter to the controller, the controller forwards the current parameter to the sensor when receiving a temperature difference value sent by the heat energy sensor, and the logic control module of the sensor takes the current parameter as a new preset parameter and stores the new parameter.

In the embodiment of the application, under the condition that the Seebeck constant is deviated due to the change of the use environment, the Seebeck constant is updated in time through the data analysis platform, so that the temperature difference value obtained after the heat energy sensor is collected and calculated is more accurate.

As an alternative embodiment, fig. 5 is a schematic flow chart of another alternative distributed thermal energy control method according to an embodiment of the present application, where the method includes:

the heating system is operated; the data analysis platform issues the temperature difference threshold value and the Seeback (Seeback) constant to the controller; the temperature difference exists between the hot end and the cold end of the sensor; the Seeback effect (Seeback) occurs, and thermoelectric conversion electromotive force is output; boosting the electromotive force; electric energy is stored in the energy storage component C; when the voltage of the energy storage component C is greater than 1.8V, the logic control module is started; collecting electromotive force to obtain temperature difference (Δ T) information of the hot end and the cold end; starting a communication module, uploading temperature difference information to a controller, and simultaneously forwarding a new Seebeck constant to a sensor; judging whether the T is less than the threshold value; if the temperature difference is smaller than the preset temperature, the controller controls the valve to cut off the heat supply, and the subsequent steps are executed from the temperature difference between the hot end and the cold end of the sensor.

Optionally, for a specific implementation manner of the embodiment of the present application, reference may be made to the above, and details are not described herein again.

In this application embodiment, because do not need direct acquisition hot junction temperature and cold junction temperature, but the difference in temperature between direct acquisition hot junction and the cold junction, consequently do not need temperature sensor, reduced data processing volume, product cost reduction. Meanwhile, the engineering is simple, the operation and maintenance work is simpler after the engineering is implemented, and the operation and maintenance cost is lower. The problem of in the correlation technique have the working power supply that needs to adopt traditional temperature sensor, oversize and the data processing ability demand of controller is too high is solved.

According to another aspect of the embodiment of the application, a distributed thermal energy control device for implementing the distributed thermal energy control method is also provided. Fig. 6 is a block diagram of an alternative distributed thermal energy control apparatus according to an embodiment of the present application, and as shown in fig. 6, the apparatus may include:

the obtaining module 601 is configured to obtain a numerical value of a temperature difference when the hot end and the cold end have the temperature difference and the first conductive unit and the second conductive unit form a closed loop;

a determining module 602, configured to determine whether the value is smaller than a first preset threshold, where the first preset threshold is used to determine whether to control the amount of heat energy provided by the hot end;

the control module 603 is configured to control the amount of heat energy provided by the hot end when the value is smaller than a first preset threshold.

It should be noted that the obtaining module 601 in this embodiment may be configured to execute the step S401, the determining module 602 in this embodiment may be configured to execute the step S402, and the controlling module 603 in this embodiment may be configured to execute the step S403.

Through the module, the value of the temperature difference between the hot end and the cold end is directly obtained by using the heat energy sensor, the heat energy provided by the hot end is controlled according to the value and the first preset threshold value, the temperature of each heat supply link is not required to be monitored, but the temperature difference between the heat supply body and the heated body is monitored, the use amount of the sensor is greatly reduced, the requirement on the data processing capacity of a controller and a data analysis platform is reduced, and the cost is also reduced. In addition, distributed heat supply control is realized, namely the heating capacity control is carried out on the tail end node, namely the single cold end, in the heat supply system, the accurate energy-saving technology is realized through non-traditional regional heat supply control, the social contradiction caused by regional or large-range heat supply control is avoided, the harmonious relation between heat supply and heating is realized, and good social benefits are created.

As an alternative embodiment, the obtaining module includes:

a first obtaining unit, configured to perform boosting processing on the electromotive force to obtain a boosted electromotive force;

a second obtaining unit, configured to store the boosted electromotive force to obtain a stored electromotive force;

the judging unit is used for judging whether the stored electromotive force is larger than a second preset threshold value, wherein the second preset threshold value is a critical value of a numerical value for generating the temperature difference;

and the third obtaining unit is used for obtaining a numerical value of the temperature difference according to the electromotive force, the first preset formula and the preset parameter under the condition that the stored electromotive force is larger than the second preset threshold value.

As an alternative embodiment, the third obtaining unit includes:

the first obtaining submodule is used for obtaining current environment data;

the judging submodule is used for judging whether the preset parameters are consistent with the current parameters or not;

It should be noted that the modules described above are the same as examples and application scenarios realized by corresponding steps, but are not limited to what is disclosed in the foregoing embodiments.

According to yet another aspect of the embodiments of the present application, there is also provided an electronic device for implementing the above-described distributed thermal energy control method, where the electronic device may be a server, a terminal, or a combination thereof.

Fig. 7 is a block diagram of an alternative electronic device according to an embodiment of the present application, as shown in fig. 7, including a processor 701, a communication interface 702, a memory 703 and a communication bus 704, where the processor 701, the communication interface 702 and the memory 703 complete communication with each other through the communication bus 704, where,

a memory 703 for storing a computer program;

the processor 701 is configured to implement the following steps when executing the computer program stored in the memory 703:

and controlling the heat energy provided by the hot end under the condition that the value is smaller than a first preset threshold value.

Alternatively, in this embodiment, the communication bus may be a PCI (Peripheral Component Interconnect) bus, an EISA (Extended Industry Standard Architecture) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 7, but that does not indicate only one bus or one type of bus.

The communication interface is used for communication between the electronic equipment and other equipment.

The memory may include RAM, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory. Alternatively, the memory may be at least one memory device located remotely from the processor.

As an example, as shown in fig. 7, the memory 703 may include, but is not limited to, an obtaining module 601, a determining module 602, and a control module 603 of the distributed thermal energy control apparatus. In addition, other module units in the distributed thermal energy control apparatus may also be included, but are not limited to, and are not described in detail in this example.

The processor may be a general-purpose processor, and may include but is not limited to: a CPU (Central Processing Unit), an NP (Network Processor), and the like; but also a DSP (Digital Signal Processing), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component.

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment is not described herein again.

It will be understood by those skilled in the art that the structure shown in fig. 7 is only an illustration, and the device implementing the distributed thermal energy control method may be a terminal device, and the terminal device may be a terminal device such as a smart phone (e.g., an Android phone, an iOS phone, etc.), a tablet computer, a palm computer, and a Mobile Internet Device (MID), a PAD, etc. Fig. 7 does not limit the structure of the electronic device. For example, the terminal device may also include more or fewer components (e.g., network interfaces, display devices, etc.) than shown in FIG. 7, or have a different configuration than shown in FIG. 7.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by a program instructing hardware associated with the terminal device, where the program may be stored in a computer-readable storage medium, and the storage medium may include: flash disk, ROM, RAM, magnetic or optical disk, and the like.

According to still another aspect of an embodiment of the present application, there is also provided a storage medium. Alternatively, in this embodiment, the storage medium may be used to store program codes for executing the distributed thermal energy control method.

Optionally, in this embodiment, the storage medium may be located on at least one of a plurality of network devices in a network shown in the embodiment.

Optionally, in this embodiment, the storage medium is configured to store program code for performing the following steps:

judging whether the numerical value is smaller than a first preset threshold value, wherein the first preset threshold value is used for determining whether to control the heat energy provided by the hot end;

Optionally, the specific example in this embodiment may refer to the example described in the above embodiment, which is not described again in this embodiment.

Optionally, in this embodiment, the storage medium may include, but is not limited to: a U disk, a ROM, a RAM, a removable hard disk, a magnetic disk, or an optical disk.

In the description herein, reference to the description of the terms "this embodiment," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the invention.

Claims

1. A distributed thermal energy control system, the system comprising: the system comprises a hot end, a valve, a heat energy sensor, a controller, a cold end and a data analysis platform;

the heat energy sensor with the hot junction, the cold junction contact for gather the hot junction with the numerical value of temperature difference between the cold junction, wherein, heat energy sensor includes: the device comprises a thermoelectric conversion module, a boost conversion module, an energy storage component, a voltage detection module, a second switch, a logic control module and a communication module; the thermoelectric conversion module is in contact with the hot end and the cold end and used for converting the temperature difference between the hot end and the cold end into electromotive force based on a first preset formula;

the boost conversion module is connected with the thermoelectric conversion module and is used for boosting the electromotive force;

the boost conversion module is connected with the energy storage component and is used for transmitting the boosted electromotive force to the energy storage component; the voltage detection module is connected with the energy storage component and used for judging whether the electromotive force stored by the energy storage component is larger than a second preset threshold value, wherein the second preset threshold value is a critical value for generating the numerical value of the temperature difference;

the voltage detection module is connected with the second switch and used for closing the second switch when the electromotive force stored by the energy storage component is greater than a second preset threshold value;

the logic control module is connected with the thermoelectric conversion module and used for collecting the electromotive force of the thermoelectric conversion module under the condition that the second switch is closed and obtaining the numerical value of the temperature difference according to the electromotive force, the first preset formula and a preset constant;

the communication module is connected with the controller and used for sending the numerical value to the controller after the numerical value is obtained, and sending a new preset parameter to the logic control module under the condition of receiving the new preset parameter from the data analysis platform forwarded by the controller;

the controller is connected with the data analysis platform and used for receiving a first preset threshold value sent by the data analysis platform and sending the numerical value to the data analysis platform under the condition of receiving the numerical value, wherein the first preset threshold value is used for determining whether to control the size of the heat energy provided by the hot end;

the controller is connected with the valve and used for sending a control instruction to the valve under the condition that the numerical value is smaller than the first preset threshold value;

the valve is arranged in the hot end and used for controlling the size of the heat energy provided by the hot end according to the control instruction, wherein the step of controlling the size of the heat energy provided by the hot end according to the control instruction comprises the following steps: determining a reduction ratio; decreasing the flow of hot water or steam in the valve by the decrease rate; after a period of time, re-collecting said value of the temperature difference between said hot end and said cold end; if the newly obtained value is still less than the first preset threshold value, the flow of hot water or steam is decreased by the decrease proportion again until the value is greater than or equal to the first preset threshold value.

2. The system of claim 1, wherein the thermal energy sensor comprises: a first switch;

and the logic control module is connected with the communication module and is used for transmitting the numerical value to the communication module under the condition that the first switch is closed.

3. The system of claim 2, wherein the thermoelectric conversion module comprises: a first conductive element and a second conductive element;

the first conductive unit is arranged at one end of the hot end and connected with the second conductive unit at one end of the hot end;

the first conductive unit and the second conductive unit form a closed loop, and the first conductive unit and the second conductive unit are used for converting the temperature difference between the cold end and the hot end into the electromotive force.

4. The system of claim 2, wherein the logic control module comprises: the device comprises a control unit and a collecting unit;

the acquisition unit is connected with the thermoelectric conversion module and is used for acquiring the electromotive force of the thermoelectric conversion module and obtaining a numerical value of the temperature difference according to the electromotive force, the first preset formula and a preset constant;

5. A distributed thermal energy control method, the method comprising:

obtaining a value of a temperature difference in a case where a temperature difference exists between the hot side and the cold side and the first conductive unit and the second conductive unit form a closed loop, wherein obtaining the value of the temperature difference in the case where the temperature difference exists between the hot side and the cold side and the first conductive unit and the second conductive unit form a closed loop comprises: generating an electromotive force under the condition that a temperature difference exists between the hot end and the cold end and the first conductive unit and the second conductive unit form a closed loop;

boosting the electromotive force to obtain boosted electromotive force;

storing the boosted electromotive force to obtain a stored electromotive force;

judging whether the stored electromotive force is larger than a second preset threshold value, wherein the second preset threshold value is a critical value for generating the numerical value of the temperature difference;

acquiring current environment data;

under the condition that the current environmental data are determined to be inconsistent with the known environmental data, obtaining current parameters;

under the condition that the preset parameters are determined to be inconsistent with the current parameters, updating the preset parameters to the current parameters;

obtaining the value of the temperature difference according to the electromotive force, a first preset formula and preset parameters under the condition that the stored electromotive force is determined to be larger than a second preset threshold;

judging whether the numerical value is smaller than a first preset threshold value, wherein the first preset threshold value is used for determining whether the size of the heat energy provided by the hot end is controlled;

controlling the magnitude of the heat energy provided by the hot end when the value is smaller than the first preset threshold, wherein the controlling the magnitude of the heat energy provided by the hot end comprises: determining a reduction ratio; reducing the flow of hot water or steam in the valve by the reduction ratio; after a period of time, re-collecting said value of the temperature difference between said hot end and said cold end; if the newly obtained value is still less than the first preset threshold, the hot water or steam flow is decreased again by the decrease proportion until the value is greater than or equal to the first preset threshold.

6. A distributed thermal energy control apparatus, comprising:

an obtaining module, configured to obtain a value of a temperature difference between a hot end and a cold end when the temperature difference exists between the hot end and the cold end and a closed loop is formed by the first conductive unit and the second conductive unit, where the obtaining module includes: the generating unit is used for generating electromotive force under the condition that the hot end and the cold end have temperature difference and the first conductive unit and the second conductive unit form a closed loop;

the judging unit is used for judging whether the stored electromotive force is larger than a second preset threshold value, wherein the second preset threshold value is a critical value for generating the numerical value of the temperature difference;

the first obtaining submodule is used for obtaining current environment data;

the judgment submodule is used for judging whether a preset parameter is consistent with the current parameter or not;

the updating submodule is used for updating the preset parameters into the current parameters under the condition that the preset parameters are determined to be inconsistent with the current parameters;

a third obtaining unit, configured to obtain the value of the temperature difference according to the electromotive force, a first preset formula, and a preset parameter when it is determined that the stored electromotive force is greater than the second preset threshold;

a control module, configured to control the magnitude of the heat energy provided by the hot end when the value is smaller than the first preset threshold, where the controlling the magnitude of the heat energy provided by the hot end includes: determining a reduction ratio; reducing the flow of hot water or steam in the valve by the reduction ratio; after a period of time, re-collecting said value of the temperature difference between said hot end and said cold end; if the newly obtained value is still less than the first preset threshold, the hot water or steam flow is decreased again by the decrease proportion until the value is greater than or equal to the first preset threshold.

7. An electronic device comprising a processor, a communication interface, a memory and a communication bus, wherein said processor, said communication interface and said memory communicate with each other via said communication bus,

the memory for storing a computer program;

the processor for performing the method steps recited in claim 5 by executing the computer program stored on the memory.

8. A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, carries out the method steps of claim 5.