CN114165824A - Secondary network hydraulic balance control system and method - Google Patents
Secondary network hydraulic balance control system and method Download PDFInfo
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- CN114165824A CN114165824A CN202111421582.7A CN202111421582A CN114165824A CN 114165824 A CN114165824 A CN 114165824A CN 202111421582 A CN202111421582 A CN 202111421582A CN 114165824 A CN114165824 A CN 114165824A
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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
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
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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
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
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Abstract
The invention relates to a secondary network hydraulic balance control system and a method, wherein the system comprises: the system comprises a primary intelligent hydraulic balance controller, a cloud server and a control unit, wherein the primary intelligent hydraulic balance controller sends user return water temperature acquired by a primary return water temperature acquisition device to the cloud server; the cloud server calculates the average return water temperature of the user according to the return water temperature of the user, and sends the obtained average return water temperature of the user to the control unit; the control unit generates a primary valve control instruction according to the average return water temperature of a user and sends the primary valve control instruction to the primary intelligent hydraulic balance controller; and the primary intelligent hydraulic balance controller adjusts the opening of the user backwater flow control valve according to the primary valve control instruction, so that the backwater temperature of the user reaches the average backwater temperature of the user. The invention realizes the heat supply hydraulic balance of the secondary network by dynamically regulating and controlling the return water flow of the user under the premise that the water supply temperature of the heat supply station and the household flow of the user are not changed.
Description
Technical Field
The invention relates to the field of heat supply regulation and control, in particular to a secondary network hydraulic balance control system and a secondary network hydraulic balance control method.
Background
In the field of urban public heating, a plurality of newly-built residential projects require a temperature control integrated scheme to measure the heating of users according to needs. In the actual use process, the conditions of large indoor temperature fluctuation and uneven cold and hot of the user often exist.
In order to solve the problem that the room temperature fluctuation is large and the heat supply is uneven, in order to enable a low-temperature user to have a better heating effect, the existing technical scheme can adopt two technical schemes: the first method is to pump the heat exchange station to the maximum and increase the water supply flow to improve the heat supply, but because the distance between the valve installation position of each user and the pipeline between the water pumps of the heat exchange station is different, this means that the pressure difference (qualified head) obtained on each valve is different, and for the same opening state, the flow passing through each valve is also different, assuming that each valve is fully open, the pressure difference of the nearest valve close to the water pump is 2 kg, and the pressure difference of the valve farthest from the water pump is only 0.2 kg, therefore, when the water supply flow is increased to meet the condition that the room temperature of the user farthest from the water pump of the heat exchange station can reach the standard temperature, the valve of the user closest to the water pump of the heat exchange station can have the over-flow condition, so that the room temperature of the user closest to the water pump of the heat exchange station far exceeds the standard temperature, thereby wasting excessive heat and failing to realize the purpose of heat supply balance; the second method is to increase the water supply temperature, and on the premise of keeping the indoor flow unchanged, the mode of increasing the water supply temperature is utilized, so that the indoor temperature of each household can reach the standard temperature, the indoor temperature of the user close to the heat exchange station is higher, but the higher the water supply temperature is, the higher the return water temperature is, meanwhile, in order to increase the water supply temperature, a heat source plant needs to consume more fuel energy, on one hand, huge waste is caused, on the other hand, the emission of combustion waste gas is increased, and the environmental pollution is aggravated.
Therefore, there is a need in the art for a system and a method for controlling hydraulic balance of secondary grid heating to solve the problems of energy waste and uneven heating in the heating process.
Disclosure of Invention
The invention aims to provide a secondary network hydraulic balance control system and a secondary network hydraulic balance control method, wherein a primary intelligent hydraulic balance controller is arranged on an indoor heat supply pipeline of each user, the return water temperature of the users is monitored in real time, and the average return water temperature of the users is utilized to dynamically regulate and control return water flow control valves of the users, so that the return water flow of the users is increased or reduced, and the heat supply hydraulic balance of the secondary network is realized on the premise that the water supply temperature of a heat supply station and the household flow of the users are not changed.
In order to achieve the purpose, the invention provides the following scheme:
a secondary grid hydraulic balance control system comprising: the system comprises a primary intelligent hydraulic balance controller, a cloud server and a control unit;
the primary intelligent hydraulic balance controller is arranged on an indoor return water pipeline of each user and is connected with a primary return water temperature collector;
the primary intelligent hydraulic balance controller is used for sending the user return water temperature acquired by the primary return water temperature acquisition device to the cloud server;
the cloud server calculates the average return water temperature of the user according to the return water temperature of the user and sends the average return water temperature of the user to the control unit;
the control unit generates a primary valve control instruction according to the average return water temperature of the user and sends the primary valve control instruction to the primary intelligent hydraulic balance controller;
and the primary intelligent hydraulic balance controller adjusts the opening of a user backwater flow control valve according to the primary valve control instruction, so that the user backwater temperature reaches the user average backwater temperature.
In some embodiments, the system further comprises a secondary intelligent hydraulic balance controller;
the secondary intelligent hydraulic balance controller is arranged on a common water return pipeline of each building or each unit and is connected with a secondary water return temperature collector;
the secondary intelligent hydraulic balance controller is used for sending the public return water temperature acquired by the secondary return water temperature collector to the cloud server;
the cloud server calculates the average public return water temperature according to the public return water temperature and sends the average public return water temperature to the control unit;
the control unit generates a secondary valve control instruction according to the average public backwater temperature and sends the secondary valve control instruction to the secondary intelligent hydraulic balance controller;
and the secondary intelligent hydraulic balance controller adjusts the opening of the public backwater flow control valve according to the secondary valve control instruction, so that the public backwater temperature reaches the average public backwater temperature.
In some embodiments, the system further comprises an intelligent temperature collector;
the intelligent temperature collector is arranged indoors of each user and used for collecting the indoor temperature of the user and sending the indoor temperature to the cloud server;
and the cloud server calculates the average indoor temperature according to the indoor temperature.
In some embodiments, the cloud server calculates a temperature difference between the indoor temperature and the average indoor temperature;
the cloud server is preset with a preset temperature difference; if the absolute value of the temperature difference is larger than the absolute value of the preset temperature difference, the cloud server takes the temperature difference as a user return water compensation temperature, and subtracts the user return water compensation temperature from the user average return water temperature to obtain a user return water regulation temperature;
the cloud server sends the user regulation temperature to the control unit;
the control unit generates a valve control compensation adjustment instruction according to the user regulation temperature and sends the valve control compensation adjustment instruction to the primary intelligent hydraulic balance controller;
and the primary intelligent hydraulic balance controller adjusts the opening degree of a user backwater flow control valve according to the valve control compensation adjustment instruction, so that the temperature of the user backwater reaches the user regulation temperature.
In some embodiments, if the intelligent temperature collector is not installed indoors, the cloud server determines whether the user needs the return water temperature compensation of the user according to the house type data of the user.
In some embodiments, the cloud server manages at least one of the control units.
In some embodiments, the control unit comprises an equipment management module, a machine room management module, and a water tank management module.
On the other hand, the invention also provides a secondary network hydraulic balance control method, which comprises the following steps:
acquiring the user return water temperature of the indoor return water pipeline of each user;
calculating the average return water temperature of the user according to the return water temperature of the user;
generating a primary valve control instruction according to the user average backwater temperature;
and adjusting the opening of a user backwater flow control valve according to the primary valve control instruction, so that the user backwater temperature reaches the user average backwater temperature.
In some embodiments, the method further comprises:
acquiring the public return water temperature of the public return water pipeline of each building or each unit;
calculating the average public return water temperature according to the public return water temperature;
generating a secondary valve control instruction according to the average public backwater temperature;
and adjusting the opening of a public backwater flow control valve according to the secondary valve control instruction, so that the public backwater temperature reaches the average public backwater temperature.
In some embodiments, the method further comprises:
acquiring indoor temperature of each user;
calculating an average indoor temperature according to the indoor temperature;
calculating a temperature difference between the indoor temperature and the average indoor temperature; if the absolute value of the temperature difference is larger than the absolute value of a preset temperature difference, taking the temperature difference as a user backwater compensation temperature, and subtracting the user backwater compensation temperature from the user average backwater temperature to obtain a user backwater regulation temperature;
generating a valve control compensation adjustment instruction according to the user backwater adjustment temperature;
and adjusting the opening of a user backwater flow control valve according to the valve control compensation adjustment instruction, so that the temperature of the user backwater reaches the user regulation temperature.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
(1) the invention provides a secondary network hydraulic balance control system and a method, wherein a primary intelligent hydraulic balance controller is arranged on an indoor heat supply pipeline of each user, the return water temperature of the users is monitored in real time, the average return water temperature of the users is utilized to dynamically regulate and control return water flow control valves of the users, and the return water flow of the users is increased or reduced, so that the heat supply hydraulic balance of a secondary network is realized on the premise that the water supply temperature of a heat supply station and the household flow of the users are not changed;
(2) the invention also arranges a secondary intelligent hydraulic balance controller on the public water return pipeline of each building or unit, thus realizing the dynamic regulation and control of the transverse heat supply hydraulic balance among the buildings or units.
(3) According to the invention, the intelligent temperature collectors are installed indoors of all users governed by the heat exchange station, the indoor temperature change of the users is used as the return water compensation temperature of the return water temperature of the users, and the return water temperature of the users is subjected to targeted dynamic regulation and control, so that the problem of unstable indoor temperature of the users caused by indoor heat dissipation is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts. The following drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 illustrates an integrated hydraulic balance control schematic diagram of a secondary grid hydraulic balance control system provided according to an embodiment of the invention;
FIG. 2 illustrates a schematic diagram of lateral hydraulic balance control of a secondary grid hydraulic balance control system provided in accordance with an embodiment of the present invention;
FIG. 3 illustrates a schematic diagram of the combined transverse hydraulic and longitudinal hydraulic control of a secondary grid hydraulic balance control system provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating user return water temperature compensation of a secondary grid hydraulic balance control system according to an embodiment of the invention;
FIG. 5 illustrates a comprehensive hydraulic balance control flow chart of a secondary grid hydraulic balance control method provided according to an embodiment of the invention;
FIG. 6 illustrates a transverse hydraulic balance control flow diagram of a method for controlling hydraulic balance of a secondary network according to an embodiment of the invention;
fig. 7 shows a user return water temperature compensation flow chart of a secondary grid hydraulic balance control method according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As used in this disclosure and in the claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are inclusive in the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.
Although the present invention makes various references to certain modules in a system according to embodiments of the present invention, any number of different modules may be used and run on a user terminal and/or server. The modules are merely illustrative and different aspects of the systems and methods may use different modules.
Flow charts are used in the present invention to illustrate the operations performed by a system according to embodiments of the present invention. It should be understood that the preceding or following operations are not necessarily performed in the exact order in which they are performed. Rather, the various steps may be processed in reverse order or simultaneously, as desired. Meanwhile, other operations may be added to the processes, or a certain step or several steps of operations may be removed from the processes.
The invention aims to provide a secondary network hydraulic balance control system and a secondary network hydraulic balance control method, wherein a primary intelligent hydraulic balance controller is arranged on an indoor heat supply pipeline of each user, the return water temperature of the users is monitored in real time, and the average return water temperature of the users is utilized to dynamically regulate and control return water flow control valves of the users, so that the return water flow of the users is increased or reduced, and the heat supply hydraulic balance of the secondary network is realized on the premise that the water supply temperature of a heat supply station and the household flow of the users are not changed.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
As shown in fig. 1, the present embodiment provides an integrated hydraulic balance control system of a secondary grid.
The system comprises a primary intelligent hydraulic balance controller, a cloud server and a control unit. The primary intelligent hydraulic balance controller is installed on an indoor return water pipeline of each user of a community controlled by the heat exchange station and connected with the primary return water temperature collector. The first-level backwater temperature collector periodically collects the backwater temperature of the user, and the first-level intelligent hydraulic balance controller sends the backwater temperature of the user collected by the first-level backwater temperature collector to the cloud server. After receiving the user return water temperature, the cloud server calculates the user average return water temperature and sends the user average return water temperature to the control unit. And according to the average return water temperature of the user, the control unit generates a primary valve control instruction and sends the primary valve control instruction to the primary intelligent hydraulic balance controller. The primary intelligent hydraulic balance controller adjusts the opening of the backwater flow control valve of the corresponding user according to the primary valve control instruction, and increases or decreases the backwater flow, so that the backwater temperature of the corresponding user reaches the average backwater temperature of the user, and the heat supply hydraulic balance among the users is realized.
Specifically, the primary backwater temperature collector collects the backwater temperature of the user for one time for half an hour, and sends the collected backwater temperature of the user to the cloud server through the primary intelligent hydraulic balance controller. The cloud server calculates the average return water temperature of the users for the received multiple groups of return water temperatures of the users in the same period, specifically
Wherein the content of the first and second substances,
average return water temperature of users, m is the number of users, tmThe user return water temperature of the mth user. The cloud server calculates the average return water temperature of the user
Sending the average return water temperature to a control unit, wherein the control unit receives the average return water temperature of the user
And generating a primary valve control instruction, and sending the primary valve control instruction to primary intelligent hydraulic balance controllers of all users. The preset temperature difference is preset in the cloud server, for example, the preset temperature difference in the cloud server is 1 ℃, and if the return water temperature t of a user ismAnd
the temperature difference is more than 1 ℃, the primary intelligent hydraulic balance controller of the user reduces the opening degree of a user backwater flow control valve of the user according to the received primary valve control instruction, thereby reducing the backwater flow of the user, reducing the heat exchange quantity and enabling t to be larger than tmApproach to
Or reach the average backwater temperature of the user
The size of (2). If the temperature t of the return water of the usermAnd
the temperature difference is less than minus 1 ℃, the primary intelligent hydraulic balance controller of the user increases the opening degree of a user backwater flow control valve of the user according to the received primary valve control instruction, thereby increasing the backwater flow of the user and increasing the heat exchange quantity, so that tmApproach to
Or reach the average backwater temperature of the user
The size of (2).
After repeated regulation and control for a period of time, the embodiment can ensure that the temperature difference between the user return water temperature of over 95% of users and the average user return water temperature is kept within the temperature error range (for example, +/-1 ℃) set by the cloud server, and for users who cannot meet the standard, the problems of pipeline blockage, water leakage and the like of the heat supply pipeline of the users are indicated. Therefore, according to the embodiment, all users managed by the heat exchange station are uniformly managed, the backwater flow of each household is dynamically adjusted, the backwater temperature of each household tends to be consistent, and the purpose of secondary network heat supply hydraulic balance is achieved.
Example two
As shown in fig. 2, the present embodiment provides a lateral hydraulic balance control system of a secondary grid hydraulic balance control system.
The system is characterized in that a secondary intelligent hydraulic balance controller is arranged on a public water return pipeline of each building or unit and is connected with a secondary water return temperature collector. The second-level intelligent hydraulic balance controller sends the public backwater temperature collected by the second-level backwater temperature collector to the cloud server, the cloud server calculates the average public backwater temperature by using the received public backwater temperature, and sends the obtained average public backwater temperature to the control unit. And according to the average common return water temperature, the control unit generates a secondary valve control instruction and sends the secondary valve control instruction to the secondary intelligent hydraulic balance controller. And the secondary intelligent hydraulic balance controller adjusts the opening of the corresponding public backwater flow control valve according to the secondary valve control instruction, and increases or decreases the backwater flow, so that the corresponding public backwater temperature reaches the average public backwater temperature, and the heat supply hydraulic balance among buildings or units is realized.
Specifically, the secondary return water temperature collector collects the primary public return water temperature one hour, and sends the collected public return water temperature to the cloud server through the secondary intelligent hydraulic balance controller. The cloud server calculates the average public return water temperature of the multiple groups of public return water temperatures received in the same period, specifically
Wherein the content of the first and second substances,
is the average common return water temperature, n is the number of buildings or units, TnThe public return water temperature of the nth building or unit. The cloud server calculates the average public backwater temperature
Sent to the control unit, the control unit being responsive to the receiptAverage common return water temperature
And generating a secondary valve control command and sending the secondary valve control command to secondary intelligent hydraulic balance controllers of all buildings or units. A preset temperature difference is preset in the cloud server, for example, the preset temperature difference in the cloud server is 1 ℃, and if the public return water temperature T isnAnd
the temperature difference is more than 1 ℃, the secondary intelligent hydraulic balance controller of the building or the unit reduces the opening degree of the public backwater flow control valve of the building or the unit according to the received secondary valve control instruction, thereby reducing the backwater flow of the building or the unit, reducing the heat exchange quantity and ensuring that T is equal to TnApproach to
Or reach the average common return water temperature
The size of (2). If the temperature T of the public return waternAnd
the temperature difference is less than-1 ℃, the secondary intelligent hydraulic balance controller of the building or the unit increases the opening degree of a public backwater flow control valve of the building or the unit according to the received secondary valve control instruction, thereby increasing the backwater flow of the building or the unit, increasing the heat exchange quantity and ensuring that T is equal to TnApproach to
Or reach the average common return water temperature
The size of (2).
After repeated regulation and control for a period of time, the embodiment can ensure that the temperature difference between the public backwater temperature of the building or unit exceeding 95% and the average public backwater temperature is kept within the temperature error range (for example, +/-1 ℃) set by the cloud server, and for the building or unit which cannot meet the standard, the problem that the heat supply pipeline of the building or unit is blocked by the pipeline, leaks water and the like can be solved. Therefore, in the embodiment, all buildings or units managed by the heat exchange station are uniformly managed, and the return water flow of each building or unit is dynamically adjusted, so that the common return water temperature of each building or unit tends to be consistent, and the transverse hydraulic balance of the heat supply of the secondary network is realized.
EXAMPLE III
As shown in fig. 3, the present embodiment provides a combined lateral hydraulic and longitudinal hydraulic control system of a secondary net hydraulic balance control system.
For the adjustment and control of the transverse hydraulic balance, the specific adjustment and control flow is as described in example two, and therefore, the description is not repeated. After the adjustment and control of the horizontal hydraulic balance are completed, if a problem of heat supply imbalance occurs among users of a certain building, the cloud server can independently perform vertical hydraulic balance adjustment and control on the building, and the specific adjustment and control flow is as described in the first embodiment (not described herein too much), so that the vertical heat supply hydraulic balance among the users of the building is realized.
The embodiment provides a secondary network hydraulic balance control system with combined regulation of transverse water power and longitudinal water power, after dynamic regulation of return water flow of each building or unit is completed, public return water temperature of each building or unit tends to be consistent, and longitudinal water power regulation can be independently carried out on buildings or units with unbalanced heat supply, and hydraulic balance of other buildings or units is not affected.
Example four
As shown in fig. 4, the present embodiment provides a user return water temperature compensation system of a secondary grid hydraulic balance control system.
The hydraulic balance control flow of this embodiment is the same as that of the first embodiment, and will not be described here. The first difference from the first embodiment is that the present embodiment considers the influence of the indoor heat dissipation situation of the user on the indoor temperature, and an intelligent temperature collector is arranged indoors for each user to collect the indoor temperature of the user. The intelligent temperature collector sends the collected indoor temperature to the cloud server, the cloud server calculates the average indoor temperature by using the indoor temperature, and judges whether the absolute value of the temperature difference between the indoor temperature and the average indoor temperature exceeds the absolute value of the preset temperature difference.
If the absolute value of the temperature difference between the indoor temperature of the user and the average indoor temperature is larger than the absolute value of the preset temperature difference, the house type, the orientation or the heat preservation performance of the user is different from other users. At the moment, the cloud server takes the temperature difference as the user return water compensation temperature of the user, and subtracts the user return water compensation temperature from the average user return water temperature, so that the user return water regulation temperature is obtained. The cloud server sends the user backwater regulation temperature to the control unit, and the control unit generates a valve control compensation regulation instruction aiming at the user backwater regulation temperature and sends the instruction to the primary intelligent hydraulic balance controller of the user. The primary intelligent hydraulic balance controller of the user adjusts the opening degree of the user backwater flow control valve according to the received valve control compensation adjustment instruction, so that the backwater temperature of the user reaches the user regulation temperature.
Specifically, if the preset temperature difference of the cloud server is 1 ℃, the indoor temperature of a user is 16 ℃, the average indoor temperature calculated by the cloud server is 18.6 ℃, the average return water temperature of the current user is 34 ℃, the temperature difference between the indoor temperature of the user and the average indoor temperature is-2.6 ℃ and is obviously less than-1 ℃, so that the cloud server subtracts the return water compensation temperature of the user from the average return water temperature of the user to calculate the return water regulation temperature of the user to be 36.6 ℃, and the cloud server sends the obtained return water regulation temperature of the user to the control unit at 36.6 ℃. The control unit generates a corresponding valve control compensation adjustment instruction and sends the instruction to the primary intelligent hydraulic balance controller of the user, and the primary intelligent hydraulic balance controller of the user increases the opening degree of a user backwater flow control valve according to the received valve control compensation adjustment instruction, so that backwater flow is increased, the indoor heat exchange capacity of the user is increased, and the indoor temperature is further increased.
In addition, if the intelligent temperature collector is not installed in the user room, the cloud server can judge whether the corresponding user needs the user return water temperature compensation according to the pre-stored user type data of the user. For example, if the house type orientation of the user is north, the indoor temperature of the user is very likely to be lower than the average indoor temperature, and the cloud server performs a corresponding return water temperature compensation measure on the user to increase the indoor temperature of the user.
In addition, the cloud server of the same heat exchange station manages a plurality of control units, and the control units can comprise an equipment management module, a machine room management module and a water tank management module and are arranged in a community property management department managed and controlled by the heat exchange station. The control unit can carry out unified management on the heat supply equipment and owner information in the same community, and carry out dynamic authority grant on related management personnel, thereby realizing accurate regulation and control on the heat supply equipment of each user.
EXAMPLE five
The embodiment provides a secondary network hydraulic balance control method which comprises a comprehensive hydraulic balance control method, a transverse hydraulic balance control method and a user return water temperature compensation method.
Fig. 5 is a comprehensive hydraulic balance control flow chart of the secondary network hydraulic balance control method. The method is characterized in that comprehensive hydraulic regulation and control are carried out on all users managed and controlled by the same heat exchange station, the user return water temperature of each user is collected, the average user return water temperature is calculated, a primary valve control instruction is generated according to the obtained average user return water temperature, the opening degree of a user return water flow control valve is adjusted, and the return water flow of each user is increased or reduced, so that the user return water temperature of each user approaches to the average user return water temperature, even reaches the average user return water temperature, and the heat supply hydraulic balance among the users is realized.
Fig. 6 is a transverse hydraulic balance control flow chart of the secondary network hydraulic balance control method. The method is characterized in that transverse hydraulic regulation and control are carried out on residential buildings or units of all communities managed and controlled by the same heat exchange station, the public return water temperature of a public return water pipeline of each building or each unit is collected, the average public return water temperature is calculated, a secondary valve control instruction is generated according to the obtained average public return water temperature, the opening degree of a public return water flow control valve of each building or unit is adjusted, and the return water flow of each building or unit is increased or reduced, so that the public return water temperature of each building or unit approaches to the average public return water temperature, even reaches the average public return water temperature, and transverse heat supply hydraulic balance among the buildings or units is realized.
In consideration of the indoor heat dissipation problem of each user, the present embodiment further provides a user return water temperature compensation method of the secondary grid hydraulic balance control method, as shown in fig. 7. The indoor temperature of each user is collected, the average indoor temperature is calculated, if the absolute value of the temperature difference between the indoor temperature of a certain user and the average indoor temperature is larger than the absolute value of the preset temperature difference, the user type, the orientation or the heat preservation performance of the user is different from those of other users, the temperature difference is used as the user return water compensation temperature, and the user return water regulation temperature is obtained by subtracting the user return water compensation temperature from the user average return water temperature. And generating a valve control compensation adjustment instruction according to the user backwater regulation temperature, adjusting the opening of a user backwater flow control valve, and increasing or decreasing backwater flow, so that the user backwater temperature of the user reaches the user regulation temperature, and further the indoor temperature of the user is changed.
In summary, the present invention has the following technical effects:
the invention provides a secondary network hydraulic balance control system and a method, wherein a primary intelligent hydraulic balance controller is arranged on an indoor heat supply pipeline of each user, the return water temperature of the users is monitored in real time, the average return water temperature of the users is utilized to dynamically regulate and control return water flow control valves of the users, and the return water flow of the users is increased or reduced, so that the heat supply hydraulic balance of a secondary network is realized on the premise that the water supply temperature of a heat supply station and the household flow of the users are not changed;
the invention also arranges a secondary intelligent hydraulic balance controller on the public water return pipeline of each building or unit, thus realizing the dynamic regulation and control of the transverse heat supply hydraulic balance among the buildings or units.
According to the invention, the intelligent temperature collectors are installed indoors of all users governed by the heat exchange station, the indoor temperature change of the users is used as the return water compensation temperature of the return water temperature of the users, and the return water temperature of the users is subjected to targeted dynamic regulation and control, so that the problem of unstable indoor temperature of the users caused by indoor heat dissipation is solved.
The present invention has been described using specific terms to describe embodiments of the invention. Such as "first/second embodiment," "an embodiment," and/or "some embodiments" means a feature, structure, or characteristic described in connection with at least one embodiment of the invention. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some of the features, structures, or characteristics of one or more embodiments of the present invention may be combined as suitable.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The foregoing is illustrative of the present invention and is not to be construed as limiting thereof. Although a few exemplary embodiments of this invention have been described, those skilled in the art will readily appreciate that many modifications are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of this invention. Accordingly, all such modifications are intended to be included within the scope of this invention as defined in the claims. It is to be understood that the foregoing is illustrative of the present invention and is not to be construed as limited to the specific embodiments disclosed, and that modifications to the disclosed embodiments, as well as other embodiments, are intended to be included within the scope of the appended claims. The invention is defined by the claims and their equivalents.
Claims (10)
1. A secondary grid hydraulic balance control system, the system comprising: the system comprises a primary intelligent hydraulic balance controller, a cloud server and a control unit;
the primary intelligent hydraulic balance controller is arranged on an indoor return water pipeline of each user and is connected with a primary return water temperature collector;
the primary intelligent hydraulic balance controller is used for sending the user return water temperature acquired by the primary return water temperature acquisition device to the cloud server;
the cloud server calculates the average return water temperature of the user according to the return water temperature of the user and sends the average return water temperature of the user to the control unit;
the control unit generates a primary valve control instruction according to the average return water temperature of the user and sends the primary valve control instruction to the primary intelligent hydraulic balance controller;
and the primary intelligent hydraulic balance controller adjusts the opening of a user backwater flow control valve according to the primary valve control instruction, so that the user backwater temperature reaches the user average backwater temperature.
2. The secondary grid hydraulic balance control system as claimed in claim 1, further comprising a secondary intelligent hydraulic balance controller;
the secondary intelligent hydraulic balance controller is arranged on a common water return pipeline of each building or each unit and is connected with a secondary water return temperature collector;
the secondary intelligent hydraulic balance controller is used for sending the public return water temperature acquired by the secondary return water temperature collector to the cloud server;
the cloud server calculates the average public return water temperature according to the public return water temperature and sends the average public return water temperature to the control unit;
the control unit generates a secondary valve control instruction according to the average public backwater temperature and sends the secondary valve control instruction to the secondary intelligent hydraulic balance controller;
and the secondary intelligent hydraulic balance controller adjusts the opening of the public backwater flow control valve according to the secondary valve control instruction, so that the public backwater temperature reaches the average public backwater temperature.
3. The secondary grid hydraulic balance control system according to claim 1, further comprising an intelligent temperature collector;
the intelligent temperature collector is arranged indoors of each user and used for collecting the indoor temperature of the user and sending the indoor temperature to the cloud server;
and the cloud server calculates the average indoor temperature according to the indoor temperature.
4. The system of claim 3, wherein the cloud server calculates a temperature difference between the indoor temperature and the average indoor temperature;
the cloud server is preset with a preset temperature difference; if the absolute value of the temperature difference is larger than the absolute value of the preset temperature difference, the cloud server takes the temperature difference as a user return water compensation temperature, and subtracts the user return water compensation temperature from the user average return water temperature to obtain a user return water regulation temperature;
the cloud server sends the user regulation temperature to the control unit;
the control unit generates a valve control compensation adjustment instruction according to the user regulation temperature and sends the valve control compensation adjustment instruction to the primary intelligent hydraulic balance controller;
and the primary intelligent hydraulic balance controller adjusts the opening degree of a user backwater flow control valve according to the valve control compensation adjustment instruction, so that the temperature of the user backwater reaches the user regulation temperature.
5. The secondary network hydraulic balance control system according to claim 3, wherein if the intelligent temperature collector is not installed in the user room, the cloud server determines whether the user needs user return water temperature compensation according to user type data.
6. The system according to claim 1, wherein the cloud server manages at least one of the control units.
7. The secondary grid hydraulic balance control system of claim 1, wherein the control unit comprises an equipment management module, a machine room management module and a water tank management module.
8. A secondary network hydraulic balance control method is characterized by comprising the following steps:
acquiring the user return water temperature of the indoor return water pipeline of each user;
calculating the average return water temperature of the user according to the return water temperature of the user;
generating a primary valve control instruction according to the user average backwater temperature;
and adjusting the opening of a user backwater flow control valve according to the primary valve control instruction, so that the user backwater temperature reaches the user average backwater temperature.
9. The secondary grid hydraulic balance control method as claimed in claim 8, further comprising:
acquiring the public return water temperature of the public return water pipeline of each building or each unit;
calculating the average public return water temperature according to the public return water temperature;
generating a secondary valve control instruction according to the average public backwater temperature;
and adjusting the opening of a public backwater flow control valve according to the secondary valve control instruction, so that the public backwater temperature reaches the average public backwater temperature.
10. The secondary grid hydraulic balance control method as claimed in claim 8, further comprising:
acquiring indoor temperature of each user;
calculating an average indoor temperature according to the indoor temperature;
calculating a temperature difference between the indoor temperature and the average indoor temperature; if the absolute value of the temperature difference is larger than the absolute value of a preset temperature difference, taking the temperature difference as a user backwater compensation temperature, and subtracting the user backwater compensation temperature from the user average backwater temperature to obtain a user backwater regulation temperature;
generating a valve control compensation adjustment instruction according to the user backwater adjustment temperature;
and adjusting the opening of a user backwater flow control valve according to the valve control compensation adjustment instruction, so that the temperature of the user backwater reaches the user regulation temperature.
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