CN114440297B - Energy-saving control method, system, equipment and medium for heating system - Google Patents
Energy-saving control method, system, equipment and medium for heating system Download PDFInfo
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- CN114440297B CN114440297B CN202210032047.0A CN202210032047A CN114440297B CN 114440297 B CN114440297 B CN 114440297B CN 202210032047 A CN202210032047 A CN 202210032047A CN 114440297 B CN114440297 B CN 114440297B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1012—Arrangement or mounting of control or safety devices for water heating systems for central heating by regulating the speed of a pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/042—Temperature sensors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention discloses an energy-saving control method, an energy-saving control system, energy-saving control equipment and an energy-saving control medium for a heating system. The heating system comprises a monitoring center, a supply end and a demand end, and the method is applied to the monitoring center. And secondly, determining a target operation index according to a comparison result of the preset temperature and the actually measured temperature of the demand end, so that the heating system fully considers the heating demand of a user and the actual heating effect, and can realize the heating according to the demand. In practice, the method realizes double-side refined operation of the supply end and the demand end on the premise of ensuring the heat supply quality and the comfort level of heat users, reduces the energy consumption of the central heating system and achieves the aims of energy conservation and carbon reduction.
Description
Technical Field
The present invention relates to the field of energy-saving heating technologies, and in particular, to an energy-saving control method, system, device, and medium for a heating system.
Background
In the related art, a heat exchange station of a central heating system is used as an important ring for connecting a heating power network and a terminal heat user, which is important for improving the heating efficiency, more existing heating systems are required to be manually regulated and controlled, the operation is very inconvenient, and meanwhile, due to the influence of artificial subjective factors, hysteresis and inaccuracy exist in the control of the heating system, the regulation precision of the central heating system is low, the overall heat consumption is large, and the resource waste is caused.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides an energy-saving control method, an energy-saving control system, energy-saving control equipment and an energy-saving control medium for a heating system, which can realize double-side refined operation of a supply end and a demand end of the system, reduce the energy consumption of the central heating system and achieve the purposes of energy conservation and carbon reduction.
According to an embodiment of the first aspect of the present invention, an energy-saving control method of a heating system, the heating system including a monitoring center, a supply end, and a demand end, the method being applied to the monitoring center, the method including:
Acquiring the outdoor environment temperature of the demand end, and determining an initial temperature according to the outdoor environment temperature and preset parameters;
determining an initial operation index of heating according to the initial temperature, and controlling the supply end to execute heating action according to the initial operation index;
acquiring a preset temperature and an actually measured temperature of the demand end;
adjusting the initial temperature according to the comparison result of the preset temperature and the measured temperature to obtain a target temperature;
and determining a target operation index of heating according to the target temperature, and controlling the supply end to execute heating action according to the target operation index.
The energy-saving control method of the heating system has at least the following beneficial effects: the initial temperature is determined through the outdoor environment temperature and the preset parameters, and the initial operation index is determined according to the initial temperature, so that the influence of the outdoor environment on the heating effect is fully considered by the initial operation index of the heating system, unnecessary high operation indexes are reduced, and the energy consumption of the central heating system can be reduced. The target operation index can be determined according to the comparison result of the preset temperature and the actually measured temperature of the demand end, so that the heating system fully considers the heating demand of a user and the actual heating effect, and the demand heating can be realized. The method is operated in the actual heating system, so that the heating system realizes double-side refined operation of a supply end and a demand end of the system on the premise of ensuring the heat supply quality and the comfort level of hot users, reduces the energy consumption of the central heating system, and achieves the purposes of energy conservation and carbon reduction.
According to some embodiments of the invention, when the preset parameter is a first preset parameter, the initial temperature is an initial water supply temperature, the preset temperature is an indoor environment preset temperature, and the measured temperature is an indoor environment measured temperature;
the step of adjusting the initial temperature according to the comparison result of the preset temperature and the measured temperature to obtain a target temperature includes:
and adjusting the initial water supply temperature according to a comparison result of the indoor environment preset temperature and the indoor environment measured temperature so as to obtain a target water supply temperature.
According to some embodiments of the invention, when the preset parameter is a second preset parameter, the initial temperature is an initial return water temperature, the method further comprises:
determining an initial water supply and return temperature difference according to the initial water supply temperature and the initial water return temperature;
acquiring a preset temperature difference of the water supply and return and an actual temperature difference of the water supply and return of the demand end;
adjusting the initial water supply and return temperature difference according to the comparison result of the water supply and return preset temperature difference and the water supply and return measured temperature so as to obtain a target water supply and return temperature difference;
and determining the target operation index of heating according to the target supply water temperature difference, and controlling the supply end to execute heating action according to the target operation index.
According to some embodiments of the invention, the initial operation index includes at least one of an initial opening degree of a primary side three-way electric control valve and an initial operation frequency of a secondary side circulating water pump, and the target operation index includes at least one of a target opening degree of the primary side three-way electric control valve and a target operation frequency of the secondary side circulating water pump.
According to some embodiments of the invention, the updating the initial temperature according to the comparison result of the preset temperature and the measured temperature to obtain the target temperature includes:
when the measured temperature is greater than the preset temperature, reducing the preset parameter to reduce the initial temperature so as to obtain a target temperature;
when the measured temperature is smaller than the preset temperature, the preset parameter is adjusted to increase the initial temperature so as to obtain a target temperature;
and when the measured temperature is equal to the preset temperature, the initial temperature is unchanged, so that the target temperature is obtained.
According to some embodiments of the invention, further comprising:
acquiring a preset working time interval and current time corresponding to the region to which the demand end belongs;
if the current time is not in the preset working time interval and the outdoor environment temperature is smaller than a preset threshold value, determining the preset temperature as a first preset value, and adjusting the initial temperature according to a comparison result of the first preset value and the actually measured temperature.
According to some embodiments of the invention, further comprising:
if the current time is not in the preset working time interval and the outdoor environment temperature is greater than the preset threshold value, closing a secondary side electric valve or a primary side three-way electric valve corresponding to the area;
or alternatively, the process may be performed,
if the current time is not in the preset working time interval and the outdoor environment temperature is greater than the preset threshold value, determining the preset temperature as a second preset value, and updating the initial temperature according to a comparison result of the second preset value and the actually measured temperature.
According to a second aspect of an embodiment of the invention, a heating system includes a monitoring center, a supply end, and a demand end,
the monitoring center includes:
the first acquisition module is used for acquiring the outdoor environment temperature of the demand end and determining an initial temperature according to the outdoor environment temperature and preset parameters;
the initial heating module is used for determining an initial operation index of heating according to the initial temperature and controlling the supply end to execute heating action according to the initial operation index;
the second acquisition module is used for acquiring the preset temperature and the actually measured temperature of the demand end;
The target temperature determining module is used for updating the initial temperature according to the comparison result of the preset temperature and the measured temperature so as to obtain a target temperature;
and the target heating module is used for determining a target operation index of heating according to the target temperature and controlling the supply end to execute heating action according to the target operation index.
A computer device according to an embodiment of the third aspect of the present invention comprises a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing a method according to any one of the embodiments of the first aspect of the present invention when executing the computer program.
A storage medium according to an embodiment of the fourth aspect of the present invention is a computer-readable storage medium storing computer-executable instructions for performing the method according to any one of the embodiments of the first aspect of the present invention.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic structural diagram of a heating system according to an embodiment of the present invention;
FIG. 2 is a flowchart of an energy-saving control method of a heating system according to an embodiment of the present invention;
FIG. 3 is another flow chart of an energy saving control method for a heating system according to an embodiment of the present invention;
FIG. 4 is another flow chart of an energy saving control method for a heating system according to an embodiment of the present invention;
FIG. 5 is another flow chart of an energy saving control method for a heating system according to an embodiment of the present invention;
fig. 6 is another flowchart of an energy-saving control method of a heating system according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
In the description of the present invention, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean 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 invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In recent years, statistics show that the energy consumption of heating in north of China is about 24% of the total energy consumption of buildings from the total energy consumption, wherein a central heating system is a common mode in northern areas. To implement urban energy-saving carbon reduction engineering, energy-saving upgrading and reconstruction of infrastructure such as heat supply are carried out, and urban comprehensive energy efficiency is promoted. Therefore, the discussion of how to reduce the energy consumption during central heating has great significance for developing economy, improving living environment and realizing the peak-to-carbon goal.
In the related art, a heat exchange station of a central heating system is used as an important ring for connecting a heating power network and a terminal heat user, which is important for improving the heating efficiency, and the traditional mode is often regulated by manual experience, and is generally 'seen for eating and burning a furnace on the sky'. On the central heating user side, once the system is started, no adjustment is generally made, and the continuous heating is usually carried out for 24 hours all the day. Often causes the low regulation precision of the central heating system, the large overall heat consumption and the increasing pressure on the atmosphere pollution.
In order to solve the technical problems of low adjustment precision and large overall heat consumption of a heating system, the embodiment of the invention discloses an energy-saving control method, an energy-saving control system, energy-saving control equipment and an energy-saving control medium of the heating system. The heating system comprises a monitoring center, a supply end and a demand end, wherein the method is applied to the monitoring center, and the initial temperature is determined according to the outdoor environment temperature and preset parameters by collecting the outdoor environment temperature of the demand end; determining an initial operation index of heating according to the initial temperature, and controlling a supply end to execute heating action according to the initial operation index; acquiring a preset temperature and an actually measured temperature of a demand end; adjusting the initial temperature according to a comparison result of the preset temperature and the measured temperature to obtain a target temperature; and determining a target operation index of heating according to the target temperature, and controlling the supply end to execute heating action according to the target operation index. The method comprises the steps of determining initial temperature through outdoor environment temperature and preset parameters, and determining initial operation indexes according to the initial temperature, so that the initial operation indexes of the heating system fully consider the influence of the outdoor environment on the heating effect, unnecessary high operation indexes are reduced, and the energy consumption of the central heating system can be reduced. And secondly, determining a target operation index according to a comparison result of the preset temperature and the actually measured temperature of the demand end, so that the heating system fully considers the heating demand of a user and the actual heating effect, and can realize the heating according to the demand. The method is operated in the actual heating system, so that the heating system realizes double-side refined operation of a supply end and a demand end of the system on the premise of ensuring the heat supply quality and the comfort level of hot users, reduces the energy consumption of the central heating system, and achieves the purposes of energy conservation and carbon reduction.
The energy-saving control method of the heating system is applied to a monitoring center, and the software and hardware main body of the monitoring center mainly comprises an operation terminal and a server, wherein the operation terminal is in communication connection with the server. The energy-saving control method may be configured and executed on the operation terminal alone, or may be configured and executed on the server alone, or may be executed based on interaction between the operation terminal and the server, and may be specifically selected appropriately according to the actual application situation, which is not particularly limited in this embodiment. In addition, the operation terminal and the server may be nodes in a blockchain, which is not particularly limited in this embodiment.
In particular, the operation terminal in the present invention may include, but is not limited to, any one or more of a smart watch, a smart phone, a computer, a personal digital assistant (Personal Digital Assistant, PDA), a smart voice interaction device, a smart home appliance, or a vehicle-mounted terminal. The server 102 may be an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, or a cloud server providing cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDNs (Content Delivery Network, content delivery networks), basic cloud computing services such as big data and artificial intelligent platforms, and the like. The communication connection between the operation terminal and the server may be established through a wireless network or a wired network using standard communication techniques and/or protocols, the network may be configured as the internet, or any other network including, but not limited to, a local area network (Local Area Network, LAN), a metropolitan area network (Metropolitan Area Network, MAN), a wide area network (Wide Area Network, WAN), a mobile, wired or wireless network, a private network, or any combination of virtual private networks, for example.
Before explaining the energy-saving control method of the heating system provided in the embodiment of the present invention, first, the constituent structure of the heating system in the present invention will be described.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a heating system according to an embodiment of the present invention, and specifically includes a supply end, a demand end and a monitoring center. The supply end comprises a heating power network, a heat exchange station, a primary side three-way electric regulating valve, a secondary side circulating water pump and a water supply and return temperature sensor. The demand end comprises a secondary side electric valve, an indoor temperature sensor, an outdoor temperature sensor and a heat user.
Fig. 2 is a flowchart of an energy-saving control method of a heating system according to an embodiment of the present invention, where the energy-saving control method of a heating system is applied to a monitoring center, and referring to fig. 2, the energy-saving control method of a heating system includes, but is not limited to, steps S110 to S150.
Step S110, the outdoor environment temperature of the demand end is collected, and the initial temperature is determined according to the outdoor environment temperature and preset parameters.
In step S110, the monitoring center acquires an outdoor environment temperature through an outdoor temperature sensor, and determines an initial temperature according to the outdoor environment temperature and a preset parameter. It should be noted that, the preset parameters may be set before the outdoor environment temperature is collected, or may be set after the outdoor environment temperature is collected by the monitoring center each time. The preset parameters can be changed in the process of heating the whole heating system, and can be specifically adjusted by people or automatically adjusted by a monitoring center.
In an embodiment, the initial temperature may be obtained according to a product of the outdoor environment temperature and a preset parameter, or the monitoring center is provided with a first mapping relation table, and the initial temperature may be obtained according to the outdoor environment temperature and a mapping relation between the preset parameter and the initial temperature.
In this embodiment, the temperature sensor is used to collect the temperature, and the outdoor environment temperature may be obtained by other methods, for example, the monitoring center may obtain the outdoor environment temperature from the network through a network connection method, which is not limited in this embodiment.
Step S120, determining an initial operation index of heating according to the initial temperature, and controlling the supply end to execute heating action according to the initial operation index.
In step S120, an initial operation index of heating is determined according to the initial temperature, and the supply terminal is controlled to perform a heating operation according to the initial operation index. In an embodiment, specifically, the monitoring center is configured with a second mapping table, so that the initial operation index can be determined according to the initial temperature from the second mapping table. In another embodiment, the monitoring center may determine the magnitude of the initial operating index based on the magnitude of the initial temperature.
It should be noted that, the monitoring center does not always acquire the outdoor ambient temperature to start controlling the heating operation, and may directly control the supply end to execute the heating operation through the preset initial operation index. In some embodiments, the monitoring center may also re-determine the initial temperature during heating by collecting the outdoor ambient temperature and preset parameters so that the initial operation index is re-determined.
Step S130, obtaining the preset temperature and the actually measured temperature of the demand end.
In step S130, in order to make the heating operation fully reflect the user' S demand, the preset temperature and the measured temperature of the demand end are introduced. The preset temperature represents the user's demand for the target heating temperature, and the measured temperature indicates the current heating temperature. The two temperatures are obtained, so that the difference between the heating requirement and the actual heating effect can be fully reflected, and the monitoring center can adjust the operation index according to the two temperatures.
In an embodiment, the actual heating effect is very different from the heating requirement, and if the heating is performed only according to the initial operation index, the heating requirement of the user cannot be met, and the requirements of different users on heating are not consistent. If the measured temperature is higher than the preset temperature, it indicates that the user does not need such a high heating temperature, which affects the user experience and also causes unnecessary resource waste. By considering the preset temperature and the actually measured temperature, the heating action of the heating system is more in line with the requirements of users, and the waste of resources is reduced.
Step S140, the initial temperature is adjusted according to the comparison result of the preset temperature and the measured temperature, so as to obtain the target temperature.
Step S150, determining a target operation index of heating according to the target temperature, and controlling the supply end to execute heating action according to the target operation index.
In step S140 to step S150, the initial temperature is adjusted according to the comparison result between the preset temperature and the measured temperature to obtain a target temperature, and then a target operation index of heating is determined according to the target temperature, and the supply end is controlled to execute the heating action according to the target operation index. In one embodiment, an initial operation index of heating is set, and indoor environment temperature and indoor preset temperature of each user are collected and uploaded to a control center. The control center adjusts the initial temperature according to the indoor preset temperature and the current indoor environment temperature, obtains the target temperature, and calculates a target operation index corresponding to the target temperature, so that the supply end executes heating action according to the target operation index until the stable indoor environment temperature reaches the indoor preset temperature.
It can be appreciated that the monitoring center can scale up or scale down the initial operation index to obtain the target operation index according to the target temperature.
The initial operation index includes at least one of an initial opening degree of the primary-side three-way electric control valve and an initial operation frequency of the secondary-side circulating water pump. The target operation index includes at least one of a target opening degree of the primary-side three-way electric control valve and a target operation frequency of the secondary-side circulating water pump. In this embodiment, the secondary side circulating water pump preferably adopts a variable frequency pump, so that the operating frequency can be reduced when the heat demand of the user is reduced, and the effects of energy conservation and consumption reduction are achieved.
It should be noted that the initial operation index and the target operation index are not necessarily the same, for example, the initial operation index is the initial opening degree of the primary side three-way electric control valve, and the target operation index is the target operation frequency of the secondary side circulating water pump.
It can be understood that, when the preset parameter is the first preset parameter, the initial temperature is the initial water supply temperature, the preset temperature is the indoor environment preset temperature, and the measured temperature is the indoor environment measured temperature, step S140 further includes, but is not limited to:
and adjusting the initial water supply temperature according to the comparison result of the indoor environment preset temperature and the indoor environment measured temperature so as to obtain the target water supply temperature.
In one embodiment, tg is an initial water supply temperature, tw is an outdoor ambient temperature, and the relationship between the initial water supply temperature and the outdoor ambient temperature is: tg=a1 th+b1, where A1 and B1 are both constants. Specifically, when the actually measured indoor environment temperature is greater than the preset indoor environment temperature, the initial temperature is reduced to obtain the target temperature. When the measured indoor environment temperature is smaller than the preset indoor environment temperature, the initial temperature is increased to obtain the target temperature. When the measured indoor environment temperature is equal to the preset indoor environment temperature, the target temperature is the initial temperature.
When the preset parameter is the second preset parameter, the initial temperature is the initial return water temperature, and referring to fig. 3, the energy-saving control method of the heating system further includes, but is not limited to, steps S210 to S240.
Step S210, determining an initial water supply and return temperature difference according to the initial water supply temperature and the initial water return temperature;
step S220, obtaining a preset temperature difference of the supply and return water at the demand end and an actual measurement temperature difference of the supply and return water;
step S230, the initial water supply and return temperature difference is adjusted according to the comparison result of the water supply and return preset temperature difference and the water supply and return actual measurement temperature, so as to obtain the target water supply and return temperature difference;
step S240, determining a target operation index of heating according to the target supply water temperature difference, and controlling the supply end to execute heating action according to the target operation index.
In steps S210 to S240, th is the initial return water temperature, tc is the supply return water temperature difference, and the relationship between the initial return water temperature and the outdoor environment temperature Tw is: th=a2×tw+b2, tc= (A1-A2) ×tw+ (B1-B2), where A1, B1, A2, B2 are constants. When the measured temperature difference of the water supply and return is smaller than the preset temperature difference of the water supply and return, the operation frequency of the secondary side water pump is reduced; when the actual measured temperature difference of the water supply and return is larger than the preset temperature difference of the water supply and return, the running frequency of the secondary side water pump is increased.
In an embodiment, the water supply temperature and the water return temperature can be obtained through a temperature sensor, and in order to fully reflect the heating effect, the water supply and return preset temperature difference and the water supply and return actual measurement temperature difference of the demand end are introduced. The preset temperature difference of the supplied and returned water represents reasonable temperature loss of the heating system, and the actual temperature difference of the supplied and returned water indicates actual temperature loss of the current heating system. The two temperature differences are obtained, so that the influence of the outdoor environment on the actual heating effect can be fully reflected, and the monitoring center can adjust the operation index according to the comparison result of the two temperature differences.
In an embodiment, the preset temperature difference of the supplied water and the measured temperature difference of the supplied water are very different, and if heating is performed only according to the initial operation index, the heating requirement of the user cannot be met. If the actual measured temperature difference of the water supply and return is higher than the preset temperature difference of the water supply and return, the temperature loss is large, the operation indexes such as the operation frequency of the secondary side circulating pump should be increased, the heat supply effect is improved, and the influence on the user experience is avoided. By considering the preset temperature difference of the water supply and return and the actual temperature difference of the water supply and return, the heating action of the heating system meets the user requirements better.
In one embodiment, referring to fig. 4, step S140 includes, but is not limited to, steps S310 to S330.
Step S310, when the measured temperature is greater than the preset temperature, reducing the preset parameter to reduce the initial temperature so as to obtain the target temperature;
step S320, when the measured temperature is less than the preset temperature, the preset parameter is adjusted to raise the initial temperature so as to obtain the target temperature;
in step S330, when the measured temperature is equal to the preset temperature, the initial temperature is unchanged, so as to obtain the target temperature.
In step S310 to step S330, the supply temperature or the return water temperature difference of the heating system is ensured to be changed along with the outdoor climate, so that the heating quantity of the system is matched with the outdoor climate, and the purpose of heating according to the requirement is achieved.
In an embodiment, referring to fig. 5, the energy saving control method of the heating system further includes, but is not limited to, steps S410 to S420.
Step S410, a preset working time interval and a current time corresponding to a region to which a demand end belongs are obtained;
step S420, if the current time is not within the preset working time interval and the outdoor environment temperature is less than the preset threshold, determining the preset temperature as a first preset value, and adjusting the initial temperature according to the comparison result of the first preset value and the actually measured temperature.
In step S410 to step S420, according to the heating system piping drawing, the project functional area, and the working period, the overall boundary of the central heating project, the boundary of each functional area, the normal working time interval and the non-working time interval are defined, and the time-sharing partition energy-saving control device is installed on the branch trunk pipe of each area, and the energy-saving control device comprises a secondary side electric valve. Before the working time of the normal working period of each functional area of the central heating project is shifted, the working mode is started in advance by t1 hour, the indoor preset temperature is determined, the initial temperature is regulated according to the comparison result of the indoor preset temperature and the actual measurement temperature of the indoor environment, the target operation index is determined, and before the working time of the normal working time interval is shifted, the working mode is ended in advance by t2 hours. According to the heating regional control method provided by the embodiment of the invention, the regional division and the time setting and the temperature setting are carried out on the whole functional region, and the monitoring center is adopted to control the heating system to carry out independent heating according to the temperature test feedback, so that the energy is saved to the greatest extent and the expenditure of a user is reduced on the premise of effectively ensuring the heating requirements of the user on different regions in different time intervals.
In an embodiment, referring to fig. 6, the energy saving control method of the heating system further includes, but is not limited to, steps S510 to S520.
Step S510, if the current time is not in the preset working time interval and the outdoor environment temperature is greater than the preset threshold value, closing the secondary side electric valve corresponding to the area;
step S520, if the current time is not within the preset working time interval and the outdoor environment temperature is greater than the preset threshold, determining the preset temperature as a second preset value, and updating the initial temperature according to the comparison result of the second preset value and the actually measured temperature.
Specifically, during the abnormal operation time interval of each functional area of the central heating project, the following conditions are adjusted:
1) When the outdoor environment temperature is less than the preset threshold, the preset threshold can take the value of 1 ℃, an antifreezing strategy is adopted, the indoor environment preset temperature is taken as a first preset value, the first preset value can take the value of 5 ℃, and the initial temperature is regulated according to the comparison result of the first preset value and the indoor environment measured temperature.
2) When the outdoor environment temperature is greater than the preset threshold, the preset threshold may take a value of 1 ℃, in one embodiment, the secondary side electric valve of the area to which the heat is applied is directly closed, and the functional area is no longer provided with hot water, or the primary side three-way electric regulating valve is directly closed, and the whole item is no longer provided with hot water.
In another embodiment, the preset indoor environment temperature is taken as a second preset value, the second design value can take 5 ℃ and the initial temperature is adjusted according to the comparison result of the second preset value and the actual indoor environment temperature.
The embodiment of the invention aims to provide an energy-saving control method of a heating system, wherein a monitoring center establishes a secondary side water supply temperature model or a secondary side water supply return model of the heating system by collecting outdoor environment temperature, and dynamically adjusts the secondary side water supply temperature or the secondary side water supply return temperature difference according to outdoor environment temperature change so as to realize heat supply according to needs. At the central heating hot user side, a time-sharing and partition energy-saving control strategy is designed, so that the central heating can be operated in an energy-saving mode in normal working time periods of all areas, and the system water pipe is not frozen or burst in abnormal working time periods of all areas. Therefore, on the premise of ensuring the heat supply quality and the comfort level of heat users, the double-side refined operation of the supply end and the demand end of the system is realized, the energy consumption of the central heating system is reduced, and the purposes of energy conservation and carbon reduction are achieved.
Two specific examples of the present invention are set forth below.
Referring to fig. 1, an energy-saving control method of a heating system is disclosed, and the method is mainly applied to a central heating system in northern areas, and comprises the following steps:
1) Establishing a system secondary side model:
the method comprises the steps of establishing a system secondary side water supply temperature model and/or establishing a secondary side water supply return temperature difference model through data such as outdoor environment temperature and the like acquired by an outdoor temperature sensor installed on site, wherein when A1, B1, A2 and B2 respectively take-0.6, 42, -0.4 and 35, the following three formulas are provided:
t water supply temperature= -0.6 x T outdoor ambient temperature +42 (1)
T backwater temperature= -0.4 x T outdoor ambient temperature +35 (2)
Temperature difference of T water supply and return= -0.2 x T outdoor environment temperature +7 (3)
2) Determining an initial operation index of a system:
and (3) according to the established secondary side water supply temperature model, as in the formula (1), determining the secondary side water supply temperature, the initial opening degree of the primary side three-way electric regulating valve and the initial running frequency of the secondary side circulating water pump.
Or according to the established secondary side water supply and return temperature difference model, as shown in formula (3), the secondary side water supply and return temperature difference, the initial opening degree of the primary side three-way electric regulating valve and the initial running frequency of the secondary side circulating water pump are defined.
3) The actual indoor environment measured temperature is acquired through an on-site indoor temperature sensor and compared with the indoor environment preset temperature, and the temperature is adjusted according to the following conditions:
A. When the measured indoor environment temperature is equal to the preset indoor environment temperature, adjustment is not needed;
B. when the measured indoor environment temperature is greater than the preset indoor environment temperature, regulating down the secondary side water supply temperature, regulating the secondary side water supply temperature model, regulating down the B1 value, if the regulating down amplitude is 0.5 ℃, and continuing monitoring and controlling;
C. when the measured indoor environment temperature is smaller than the preset indoor environment temperature, the secondary side water supply temperature T is regulated, the secondary side water supply temperature model is regulated, the B1 value is regulated, if the regulating amplitude is 0.5 ℃, the monitoring control is continued.
Or alternatively, the process may be performed,
when the measured temperature difference of the water supply and return is smaller than the preset temperature difference of the water supply and return, the operation frequency of the secondary side water pump is reduced;
when the actual measured temperature difference of the water supply and return is larger than the preset temperature difference of the water supply and return, the running frequency of the secondary side water pump is increased.
Example two, referring to fig. 1, according to the central heating system piping diagram and project integrated functional area, the method includes:
1) Dividing a time division partition area:
according to a heating system pipeline drawing, project functional areas and working time periods, the integral boundary of a central heating project, the boundary of each functional area and a normal working time interval and a non-working time interval are defined, a time-sharing partition energy-saving control device is arranged on branch main pipes of each area, the energy-saving control device comprises a secondary side electric valve, the project integral comprises an area A heat user, an area B heat user, an area C heat user and an area D heat user, and the electric valves are arranged on the heat users of each area.
2) The control method for the normal working period of the formulated area comprises the following steps:
before working time in a normal working time interval of each functional area of the central heating project, entering a working mode in advance of t1 hour, such as 1 hour, and determining preset indoor environment temperature, such as 18 ℃. And according to the comparison result of the preset indoor environment temperature and the actually measured indoor environment temperature, the initial temperature is regulated, the target operation index is determined, and the working mode is finished t2 hours in advance, for example, 0.5 hour before the working time is spent.
3) The method for controlling the non-working period of the formulated area comprises the following steps:
in the abnormal working period of each functional area of the central heating project, the following conditions are adopted:
a. when the outdoor environment temperature is less than T1 and T1 can take a value of 1 ℃, adopting an anti-freezing strategy, taking the indoor environment preset temperature as a first preset value, taking the first preset value to take a value of 5 ℃, and adjusting the initial temperature according to the comparison result of the first preset value and the indoor environment measured temperature.
b. When the outdoor environment temperature is more than T1, T1 can take a value of 1 ℃, the secondary side electric valve of the corresponding area of the outdoor environment is directly closed, and the functional area does not provide hot water any more. Or taking the preset indoor environment temperature as a second preset value, wherein the second design value can take the value of 5 ℃, and adjusting the initial temperature according to the comparison result of the second preset value and the actual indoor environment temperature.
At the central heating demand end, the time-sharing and partition energy-saving control strategy is designed to ensure that each area operates in a normal working period in a central heating energy-saving mode; in abnormal working time periods of all areas or whole projects, the energy-saving operation is realized, and the system water pipe is not frozen or detonated.
4) The method for controlling the non-working period of the whole project is formulated:
a. when the temperature of the T outdoor is less than 1 and the temperature of the T1 is 1 ℃, adopting an antifreezing strategy, taking the preset temperature=T2 and the preset temperature of the T2 of the indoor environment of the T heating, and adjusting the initial temperature and determining the target operation index according to the comparison result of the preset temperature and the actual measured temperature of the indoor environment.
b. When the temperature of the T outdoor is greater than T1 and the temperature of the T1 is 1 ℃, the primary side three-way electric regulating valve is directly closed, the central heating system stops running, and hot water is not provided in the whole areas A, B, C and D of the project.
The embodiment of the invention also provides a heating system, which comprises a monitoring center, a supply end and a demand end, wherein the monitoring center comprises:
the first acquisition module is used for acquiring the outdoor environment temperature of the demand end and determining the initial temperature according to the outdoor environment temperature and preset parameters;
the initial heating module is used for determining an initial operation index of heating according to the initial temperature and controlling the supply end to execute heating action according to the initial operation index;
The second acquisition module is used for acquiring the preset temperature and the actually measured temperature of the demand end;
the target temperature determining module is used for updating the initial temperature according to the comparison result of the preset temperature and the actually measured temperature so as to obtain the target temperature;
and the target heating module is used for determining a target operation index of heating according to the target temperature and controlling the supply end to execute heating action according to the target operation index.
According to the heating system, each module realizes double-side refined operation of the supply end and the demand end on the premise of ensuring the heat supply quality and the user comfort level by executing the energy-saving control method, reduces the energy consumption of the central heating system, and achieves the purposes of energy conservation and carbon reduction.
The specific execution steps of a heating system refer to the energy-saving control method of a heating system, and are not repeated here.
The embodiment of the invention also provides a computer device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to realize the method in any one of the method embodiments.
Furthermore, an embodiment of the present invention provides a storage medium, which is a computer-readable storage medium storing computer-executable instructions that are executed by one or more control processors, where the one or more control processors perform the methods in the above-described method embodiments, for example, perform the method steps S110 to S150 in fig. 2, the method step S240 in fig. 3, the method steps S310 to S330 in fig. 4, the method steps S410 to S420 in fig. 5, and the method steps S510 to S520 in fig. 6 described above.
The above described apparatus embodiments are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may be distributed over a plurality of network nodes. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
The embodiments described in the embodiments of the present disclosure are for more clearly describing the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure, and as those skilled in the art can know that, with the evolution of technology and the appearance of new application scenarios, the technical solutions provided by the embodiments of the present disclosure are equally applicable to similar technical problems.
It will be appreciated by those skilled in the art that the embodiments shown are not limiting of the embodiments of the disclosure and may include more or fewer steps than shown, or certain steps may be combined, or different steps.
Those of ordinary skill in the art will appreciate that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof.
The terms "first," "second," "third," "fourth," and the like in the description of the application and in the above figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, 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.
It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer readable storage media (or non-transitory media) and communication media (or transitory media). The term computer-readable storage medium includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information, such as computer-readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer-readable storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention. Furthermore, embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Claims (6)
1. An energy-saving control method of a heating system, wherein the heating system includes a monitoring center, a supply end and a demand end, the method being applied to the monitoring center, the method comprising:
acquiring the outdoor environment temperature of the demand end, and determining an initial temperature according to the outdoor environment temperature and preset parameters;
determining an initial operation index of heating according to the initial temperature, and controlling the supply end to execute heating action according to the initial operation index; the initial operation index comprises at least one of initial opening degree of a primary side three-way electric regulating valve and initial operation frequency of a secondary side circulating water pump;
acquiring a preset temperature and an actually measured temperature of the demand end;
adjusting the initial temperature according to the comparison result of the preset temperature and the measured temperature to obtain a target temperature;
Determining a target operation index of heating according to the target temperature, and controlling the supply end to execute heating action according to the target operation index; the target operation index comprises at least one of a target opening degree of the primary side three-way electric regulating valve and a target operation frequency of the secondary side circulating water pump;
wherein the adjusting the initial temperature according to the comparison result of the preset temperature and the measured temperature to obtain the target temperature includes:
when the measured temperature is greater than the preset temperature, reducing the preset parameter to reduce the initial temperature so as to obtain a target temperature;
when the measured temperature is smaller than the preset temperature, the preset parameter is adjusted to increase the initial temperature so as to obtain a target temperature;
when the measured temperature is equal to the preset temperature, the initial temperature is unchanged, so that a target temperature is obtained;
when the preset parameters are first preset parameters, the initial temperature is an initial water supply temperature, the preset temperature is an indoor environment preset temperature, and the actual measured temperature is an indoor environment actual measured temperature; the step of adjusting the initial temperature according to the comparison result of the preset temperature and the measured temperature to obtain a target temperature includes:
Adjusting the initial water supply temperature according to a comparison result of the indoor environment preset temperature and the indoor environment measured temperature so as to obtain a target water supply temperature;
when the preset parameter is a second preset parameter, the initial temperature is an initial backwater temperature, and the method further comprises:
determining an initial water supply and return temperature difference according to the initial water supply temperature and the initial water return temperature;
acquiring a preset temperature difference of the water supply and return and an actual temperature difference of the water supply and return of the demand end;
adjusting the initial water supply and return temperature difference according to the comparison result of the water supply and return preset temperature difference and the water supply and return measured temperature so as to obtain a target water supply and return temperature difference;
and determining the target operation index of heating according to the target supply water temperature difference, and controlling the supply end to execute heating action according to the target operation index.
2. The energy saving control method of a heating system according to claim 1, further comprising:
acquiring a preset working time interval and current time corresponding to the region to which the demand end belongs;
if the current time is not in the preset working time interval and the outdoor environment temperature is smaller than a preset threshold value, determining the preset temperature as a first preset value, and adjusting the initial temperature according to a comparison result of the first preset value and the actually measured temperature.
3. The energy saving control method of a heating system according to claim 2, further comprising:
if the current time is not in the preset working time interval and the outdoor environment temperature is greater than the preset threshold value, closing a secondary side electric valve or a primary side three-way electric regulating valve corresponding to the area;
or alternatively, the process may be performed,
if the current time is not in the preset working time interval and the outdoor environment temperature is greater than the preset threshold value, determining the preset temperature as a second preset value, and updating the initial temperature according to a comparison result of the second preset value and the actually measured temperature.
4. A heating system is characterized by comprising a monitoring center, a supply end and a demand end,
the monitoring center includes:
the first acquisition module is used for acquiring the outdoor environment temperature of the demand end and determining an initial temperature according to the outdoor environment temperature and preset parameters;
the initial heating module is used for determining an initial operation index of heating according to the initial temperature and controlling the supply end to execute heating action according to the initial operation index; the initial operation index comprises at least one of initial opening degree of a primary side three-way electric regulating valve and initial operation frequency of a secondary side circulating water pump;
The second acquisition module is used for acquiring the preset temperature and the actually measured temperature of the demand end;
the target temperature determining module is used for adjusting the initial temperature according to the comparison result of the preset temperature and the measured temperature so as to obtain a target temperature;
the target heating module is used for determining a target operation index of heating according to the target temperature and controlling the supply end to execute heating action according to the target operation index; the target operation index comprises at least one of a target opening degree of the primary side three-way electric regulating valve and a target operation frequency of the secondary side circulating water pump;
wherein the adjusting the initial temperature according to the comparison result of the preset temperature and the measured temperature to obtain the target temperature includes:
when the measured temperature is greater than the preset temperature, reducing the preset parameter to reduce the initial temperature so as to obtain a target temperature;
when the measured temperature is smaller than the preset temperature, the preset parameter is adjusted to increase the initial temperature so as to obtain a target temperature;
when the measured temperature is equal to the preset temperature, the initial temperature is unchanged, so that a target temperature is obtained;
When the preset parameters are first preset parameters, the initial temperature is an initial water supply temperature, the preset temperature is an indoor environment preset temperature, and the actual measured temperature is an indoor environment actual measured temperature; the step of adjusting the initial temperature according to the comparison result of the preset temperature and the measured temperature to obtain a target temperature includes:
adjusting the initial water supply temperature according to a comparison result of the indoor environment preset temperature and the indoor environment measured temperature so as to obtain a target water supply temperature;
when the preset parameter is a second preset parameter, the initial temperature is an initial backwater temperature, and the monitoring center is further configured to:
determining an initial water supply and return temperature difference according to the initial water supply temperature and the initial water return temperature;
acquiring a preset temperature difference of the water supply and return and an actual temperature difference of the water supply and return of the demand end;
adjusting the initial water supply and return temperature difference according to the comparison result of the water supply and return preset temperature difference and the water supply and return measured temperature so as to obtain a target water supply and return temperature difference;
and determining the target operation index of heating according to the target supply water temperature difference, and controlling the supply end to execute heating action according to the target operation index.
5. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any one of claims 1 to 3 when executing the computer program.
6. A storage medium, which is a computer-readable storage medium, characterized in that computer-executable instructions for performing the method according to any one of claims 1 to 3 are stored.
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