CN111765506B - Intelligent pipe network control method and system - Google Patents
Intelligent pipe network control method and system Download PDFInfo
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- CN111765506B CN111765506B CN202010675900.1A CN202010675900A CN111765506B CN 111765506 B CN111765506 B CN 111765506B CN 202010675900 A CN202010675900 A CN 202010675900A CN 111765506 B CN111765506 B CN 111765506B
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- 238000000034 method Methods 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 109
- 238000013507 mapping Methods 0.000 claims description 20
- 230000033228 biological regulation Effects 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 31
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
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- 230000017525 heat dissipation Effects 0.000 description 1
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- 239000003345 natural gas Substances 0.000 description 1
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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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- 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
Abstract
The invention provides an intelligent pipe network control method, which comprises the following steps: real-time outdoor temperature T acquisitionOuter coverAccording to the historical outdoor temperature TOuter coverAnd the theoretical water supply temperature T2 of the secondary network determines the current theoretical water supply temperature T2 of the secondary network; acquiring the current water supply temperature T1 and valve opening data of the secondary network, and adjusting the opening of the valve according to the sizes of T2 and T1; the invention has the following beneficial effects: 1. the workload at the initial heating stage is reduced; 2. the workload of field technicians is reduced; 3. front-end over supply is reduced, and energy is saved; 4. the excess supply in the heating season is reduced, and the energy is saved; 5. the problems of unbalanced temperature at the front end and the rear end between buildings and insufficient heat supply at the tail end are solved; 6. the electric power is saved, and the control is smooth and stable.
Description
Technical Field
The invention belongs to the technical field of heating valve control, and particularly relates to an intelligent pipe network control method and system.
Background
The existing heating mode is that after boiler effluent entered heat exchange station plate heat exchanger, the secondary net water was heated, the secondary net water circulated through the circulating pump, get into the heat supply area and supply heat, this heating mode lacks the balanced regulation mode between each heat exchange station, traditional regulation mode is manual valve, the fixed net water supply amount is set for each heat exchange station net once according to experience, later whole heating season is hardly adjusted, lead to each heat exchange station heat uneven, the heat exchange station heat that once net supplied water reachs earlier is super-supplied, the user has been because of the high heat dissipation of windowing of room temperature, the heat of terminal heat exchange station is but not enough, the heat supply temperature is not up to standard. To solve this problem, two methods are generally employed. One is to increase the heat supply for the end to meet the heat supply standard, resulting in energy waste (coal, natural gas, biomass, oil) due to over-supply at the front end. The other type is to increase the flow of the secondary network, and has the defects that the power consumption of a water pump is increased, the electric resources are wasted, and the water pressure of the pipe network is increased. Some old cells run the risk of bursting water pipes.
The existing heating mode lacks a fine control mode for a secondary network. The traditional adjusting mode is that after the opening of a valve of a fixed plate is set and the power of a water pump is set, heating is carried out at a fixed single water temperature. When the temperature is required (increased or decreased), manual adjustment is carried out, and the method causes that workers need to stand on the spot or in an office in a remote control mode in the whole process. However, people cannot work on the spot for 24 hours all day long, so that even the most worried workers cannot ensure that the heat quantity is not large or small in each time period all day. Moreover, each pump station is monitored by professional technical workers, and the labor cost is too high.
At the beginning of the annual heating season, particularly in large heating enterprises, routine leveling work needs to be performed on all heat exchange stations. Due to the flow characteristics of the aqueous medium, after each station adjustment, the state of the previously adjusted station changes. The work needs to be carried out repeatedly, in the middle stage of heating, the balance can be broken again because the weather turns cold, the whole leveling work needs to be carried out again, and the workload is huge. This leads to a conflict, and without leveling, it can lead to waste of heat supply or insufficient heat supply leading to complaints. The manpower cost is increased by leveling, the balance still cannot be guaranteed, the waste situation is that the design of simply relieving a part of technical staff cannot be completely realized, and the staff of each heating power company designs a whole set of heating standard according to the local situation. However, due to the lack of effective regulation means, regulation of court time and the like caused by the technical level of workers under hands and the geographic position frequently occurs, and cannot be realized.
Disclosure of Invention
In order to solve the technical problems, the invention provides an intelligent pipe network control method, which comprises the following steps:
real-time outdoor temperature T acquisitionOuter coverAccording to the historical outdoor temperature TOuter coverAnd the theoretical water supply temperature T2 of the secondary network determines the current theoretical water supply temperature T2 of the secondary network;
and acquiring the current water supply temperature T1 and valve opening data of the secondary network, and adjusting the opening of the valve according to the sizes of T2 and T1.
The invention has the following beneficial effects: 1. during heating, each heat exchange station can reach stable temperature in a short time due to automatic regulation and control, so that a primary network (namely each heat exchange station) is rapidly balanced, and the workload at the initial heating stage is reduced; 2. the system runs completely automatically after being set, so that a professional technician is not required to monitor the system for a long time on site, and the workload of the technician on site is reduced; 3. each heat exchange station automatically requests heat as required, the temperature outside the set curve is not supplied, the reduced heat consumption of the front heat exchange station can enter the far-end heat exchange station along the primary network circulation, the temperature difference between the front end and the rear end is reduced, the excess supply is reduced, and the energy is saved; 4. different temperature mapping relationships can be acquired at different time intervals. The temperature is raised in the case of cooling in the weather, and the temperature is raised in the weather (such as at high temperature in noon), so that the heating temperature is reduced, the overfeeding in heating seasons is reduced, and the energy is saved; 5 after the bypass valve of the secondary network is opened, one part of water circulation of the secondary network does not enter the plate exchanger any more, and because the plate exchanger has resistance, the water which is not entered into the plate exchanger is equal to the water circulation flow of the integral secondary network, so that the problems of unbalanced temperature at the front end and the rear end of a building and insufficient heat supply at the tail end can be solved; 6. the heat consumption is reduced, and the circulation resistance of the secondary net is reduced. In the system, loads of a grate of a boiler, an induced draft fan, a secondary network water pump and other electric facilities are reduced, electric power is saved, the system can be regulated and controlled in real time without break 24 hours all day, and the heat supply design of a technical head worker is completely implemented. And the control is smooth and stable.
Drawings
FIG. 1 is a flow chart of an exemplary intelligent pipe network control method;
FIG. 2 is a flow chart of an exemplary intelligent pipe network control method;
FIG. 3 is a schematic diagram of the structure of the intelligent pipe network and valves in this example;
FIG. 4 is a flowchart illustrating an exemplary method for controlling an intelligent pipe network;
FIG. 5 is a schematic diagram of the structure of the intelligent pipe network and valves in this example;
FIG. 6 is a flowchart illustrating a method for controlling an intelligent pipe network;
FIG. 7 is a schematic diagram of the structure of the intelligent pipe network and valves in this example;
FIG. 8 is a flowchart illustrating a method for controlling an intelligent pipe network;
FIG. 9 is a schematic diagram of the structure of the intelligent pipe network and valves in this example;
FIG. 10 is a flowchart illustrating an exemplary method for controlling an intelligent pipe network;
FIG. 11 is a block diagram illustrating an example of a smart pipe network control system;
FIG. 12 is a block diagram of an exemplary valve controller;
FIG. 13 is a block diagram of an exemplary valve controller;
FIG. 14 is a schematic illustration of an exemplary temperature profile;
wherein 100 is a boiler, 200 is a plate heat exchanger, 300 is a building, 400 is a circulating pump, 500 is a control cabinet, 600 is a water mixer, a is a valve a, b is a valve b, c is a valve c, d is a temperature probe of an outdoor temperature measuring device, e is a side position probe on a secondary network water supply pipe, and f is a temperature probe on a secondary network water return pipe.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings.
Examples
As shown in fig. 1, a flow chart of the intelligent pipe network control method of the present invention is shown, and the intelligent pipe network control method includes the following steps:
real-time outdoor temperature T acquisitionOuter coverAccording to the historical outdoor temperature TOuter coverAnd the theoretical water supply temperature T2 of the secondary network determines the current theoretical water supply temperature T2 of the secondary network;
acquiring the current water supply temperature T1 and valve opening data of the secondary network, and adjusting the opening of the valve according to the sizes of T2 and T1; t2 is a range or point value; wherein, the mapping relation may be a temperature curve, as shown in fig. 14, two temperature curves are shown, one or two of the temperature curves may be selected according to specific situations when in use, or different temperature curves may be collected at different time periods of the same day, if a place needs a higher heating temperature in the daytime, and a lower heating temperature at night, the mapping relation may also be a calculation formula, as long as T can be reflectedOuter coverAnd T2, can be based on TOuter coverT2 can be calculated, and the mapping relationship is influenced by local weather conditions, heating facility conditions, building insulation conditions, heating requirements, and the like, such as: the T2 can be relatively smaller when the building heat-insulating capacity is strong, the T2 is relatively higher when the building heat-insulating capacity is poor, similarly, the T2 in the dormitory building heating process is different from the T2 in the laboratory, a plurality of mapping relations can be manually input into the computer, one or more of the mapping relations can be selected by the computer, and the computer can use the mapping relations to perform the heat-insulating function according to the mapping relationsRelation and TOuter coverThe value of the outdoor temperature is calculated to obtain T2, the opening of the valve is further adjusted, the outdoor temperature can be acquired in real time, and therefore the outdoor temperature is more accurate, can be acquired once in 30 seconds and can be adjusted according to specific conditions; in the example, the opening degree of the valve is adjusted by comparing the sizes of T1 and T2 and judging the original opening degree of the valve; the indoor temperature of each user in each building does not need to be collected, and the method has the following technical effects: 1. during heating, each heat exchange station can reach a stable temperature in a short time due to automatic regulation and control, so that a primary network (namely each heat exchange station) is rapidly balanced, and the workload of the initial heating stage is reduced; 2. the system runs completely automatically after being set, so that long-term monitoring by professional technicians on site is not needed, and the workload of the technicians on site is reduced; 3. each heat exchange station automatically requests heat as required, the temperature outside the set curve is not supplied, the reduced heat consumption of the front heat exchange station can enter the far-end heat exchange station along the primary network circulation, the temperature difference between the front end and the rear end is reduced, the excess supply is reduced, and the energy is saved; 4. designing a curve by time period. The temperature is raised in the case of cooling in the weather, and the temperature is raised in the weather (such as at high temperature in noon), so that the heating temperature is reduced, the overfeeding in heating seasons is reduced, and the energy is saved; 5 after the bypass valve of the secondary network is opened, one part of water circulation of the secondary network does not enter the plate exchanger any more, and because the plate exchanger has resistance, the water which is not entered into the plate exchanger is equal to the water circulation flow of the integral secondary network, so that the problems of unbalanced temperature at the front end and the rear end of a building and insufficient heat supply at the tail end can be solved; 6. the heat consumption is reduced, and the circulation resistance of the secondary net is reduced. In the system, loads of electric facilities such as a grate of a boiler, an induced draft fan, a secondary net water pump and the like are reduced, and electric power is saved; 7. the computer system can realize 30-second inspection once, can regulate and control 24 hours a day in real time, and can completely implement the heat supply design of the technical staff. And the control is smooth and stable.
As shown in fig. 3, in some examples, a flowchart of an intelligent pipe network control method according to the present invention is shown, where the intelligent pipe network further includes a primary network, and as shown in fig. 2, the intelligent pipe network control method further includes the following steps: collecting the setting position of a valve when the valve is respectively a valve a arranged on a bypass pipe between a secondary water supply pipe and a secondary water return pipe, a valve b arranged on the secondary water supply pipe and a valve c arranged on a primary water supply pipe; the specific method for adjusting the opening degree of the valve according to the sizes of T2 and T1 is as follows: judging the sizes of T1 and T2, when T1 is larger than T2, judging whether the valve a reaches the maximum opening degree, if so, closing the valve c by the opening degree of k3, and if not, opening the valve a by the opening degree of k1 and closing the valve b by the opening degree of k 2; when T1 is smaller than T2, whether the valve a is completely closed is judged, if yes, the valve c is opened by k3, if not, the valve a is closed by k1 and the valve b is opened by k2, and if T1 is equal to T2, no regulation is carried out;
0≦K1、k2、k3≦100；
in some examples, as shown in fig. 5, a flowchart of an intelligent pipe network control method according to the present invention is shown, where the intelligent pipe network further includes a primary network, and as shown in fig. 4, the intelligent pipe network control method further includes the following steps: the position of setting of collection valve, when the valve is respectively for setting up valve an on the bypass pipe between secondary delivery pipe, secondary return water pipe and set up the valve c on the primary water supply pipe, according to the size of T2 and T1, adjusts the concrete method as follows to the aperture of valve: judging the sizes of T1 and T2, when T1 is larger than T2, detecting whether the valve a reaches the maximum opening degree, if so, closing the valve c by the opening degree of k3, and if not, opening the valve a by the opening degree of k 1; when T1 is smaller than T2, whether the valve a is completely closed is detected, if yes, the valve c is opened by k3, if not, the valve a is closed by k1, and if T1 is equal to T2, regulation is not carried out;
0≦K1、k2、k3≦100。
in some examples, as shown in fig. 6 to 7, a flow chart of the intelligent pipe network control method of the present invention is shown, and the intelligent pipe network control method further includes the following steps: the position of setting of collection valve, when the valve is respectively for setting up valve an on the bypass pipe between secondary delivery pipe, secondary return water pipe and set up the valve b on the secondary delivery pipe, according to the size of T2 and T1, adjusts the concrete method as follows to the aperture of valve: judging the sizes of T1 and T2, and when T1 is larger than T2, opening the valve a by k1 and closing the valve b by k 2; when T1 is smaller than T2, closing valve a by opening k1 and opening valve b by opening k2, and if T1 is equal to T2, not regulating;
0≦K1、k2、k3≦100。
in some examples, as shown in fig. 8 to 9, a flowchart of an intelligent pipe network control method according to the present invention is shown, where the intelligent pipe network control method further includes the following steps: the setting position of the collecting valve, when the valve is the valve a arranged on the bypass pipe between the secondary water supply pipe and the secondary water return pipe, the specific method for adjusting the opening degree of the valve according to the sizes of T2 and T1 is as follows: judging the sizes of T1 and T2, and opening the valve a by a k1 opening degree when T1 is larger than T2; when T1 is smaller than T2, closing the valve a by an opening of k1, and if T1 is equal to T2, not regulating;
0≦K1、k2、k3≦100。
the valves a and b are preferably butterfly valves, can adopt electric regulating butterfly valves of any brands, the pipe diameter is determined according to the pipe diameter from a secondary network in site, the valve c is preferably a flow regulating valve, and can adopt electric flow regulating valves of any brands, and the pipe diameter is determined according to the pipe diameter from a primary network in site.
In some examples, as shown in fig. 10, a flowchart of an intelligent pipe network control method according to the present invention is shown, where the intelligent pipe network control method further includes the following steps: collecting the values of the upper limit a1 and a2 of the valve a and the upper limit b1, b2 and k1 of the valve b, obtaining the value of k2 according to the relation between k1 and k2 and the value of k1, wherein the relation between the operation opening k2 and k1 of the valve b is as follows:
according to the invention, the relation between k1 and k2 is limited, so that the water supply temperature of each building is more reasonable, and the water supply requirement is more met.
In some examples, the intelligent pipe network control method further comprises the following steps: calculating | T1-T2|, and adjusting the opening of each valve according to the calculation result; when the absolute value of T1-T2 is more than or equal to 0.8 and less than 1, adjusting the opening degree of each valve by 5 percent correspondingly; when the absolute value of T1-T2 is more than or equal to 0.6 and less than 0.8, the opening degree of each valve is correspondingly adjusted by 4 percent; when the absolute value of T1-T2 is more than or equal to 0.4 and less than 0.6, the opening degree of each valve is correspondingly adjusted by 3 percent; when the absolute value of T1-T2 is more than or equal to 0.2 and less than 0.4, adjusting the opening degree of each valve by 2 percent correspondingly; when the water temperature is 0< | T1-T2| <0.2, the opening degree of each valve is correspondingly adjusted by 1 percent, and the water supply temperature is controlled more accurately and stably through the steps.
As shown in fig. 11, a block diagram of the structure of the intelligent pipe network control system of the present invention is shown, and the intelligent pipe network control system includes a mapping relation acquisition module 1, an outdoor temperature acquisition module 2, a theoretical water supply temperature determination module 3, a water supply temperature acquisition module 4, a valve opening detection module 5, and a valve controller 6;
the mapping relation acquisition module 1 is used for acquiring outdoor temperature TOuter coverAnd the theoretical water supply temperature T2 of the secondary network and sending the mapping relation to the theoretical water supply temperature determining module 3;
the outdoor temperature acquisition module 2 is used for acquiring outdoor temperature TOuter coverAnd will TOuter coverSending the water to a theoretical water supply temperature determining module 3;
the theoretical water supply temperature determining module 3 is used for determining the outdoor temperature T according to the received outdoor temperatureOuter coverDetermining the theoretical water supply temperature T2 of the secondary network according to the mapping relation;
the water supply temperature acquisition module 4 acquires the current water supply temperature T1 of the secondary network;
the valve opening detection module 5 is used for detecting the original opening of the valve;
the valve controller 6 is used for adjusting the opening degree of the valves according to the sizes of the T2 and the T1 and the original opening degree of each valve.
T2 is a range or point value; the mapping relationship may be a curve, as shown in fig. 10, two curves are shown, and one of the two curves may be selected according to specific situations when in use, or may be a calculation formula as long as T can be reflectedOuter coverAnd T2, can be based on TOuter coverT2 can be calculated, and the mapping relation is determined by local weather condition, heating facility condition and building heat preservation conditionHeating requirements, etc., such as: t2 can be smaller when building heat preservation ability is strong, T2 is higher relatively a bit better when building heat preservation ability is poor, similarly, T2 is different from T2 in laboratory when dormitory building heats, the mapping relation can be input into computer, after computer collection, according to the mapping relation and T2Outer coverThe value of the indoor temperature is calculated to obtain T2, the outdoor temperature can be collected in real time, so that the outdoor temperature is more accurate, can be collected once in 30s and can be adjusted according to specific conditions; in the example, the opening degree of the valve is adjusted by comparing the sizes of T1 and T2 and judging the original opening degree of the valve; the indoor temperature of each user in each building does not need to be collected, and the method has the following technical effects: 1. during heating, each heat exchange station can reach stable temperature in a short time due to automatic regulation and control, so that a primary network (namely each heat exchange station) is rapidly balanced, and the workload at the initial heating stage is reduced; 2. the system runs completely automatically after being set, so that long-term monitoring by professional technicians on site is not needed, and the workload of the technicians on site is reduced; 3. each heat exchange station automatically requests heat as required, the temperature outside the set curve is not supplied, the reduced heat consumption of the front heat exchange station can enter the far-end heat exchange station along the primary network circulation, the temperature difference between the front end and the rear end is reduced, the excess supply is reduced, and the energy is saved; 4. and designing a curve in a time-sharing mode. The temperature is raised in the case of cooling in the weather, and the temperature is raised in the weather (such as at high temperature in noon), so that the heating temperature is reduced, the overfeeding in heating seasons is reduced, and the energy is saved; 5 after the bypass valve of the secondary network is opened, one part of water circulation of the secondary network does not enter the plate exchanger any more, and because the plate exchanger has resistance, the water which is not entered into the plate exchanger is equal to the water circulation flow of the integral secondary network, so that the problems of unbalanced temperature at the front end and the rear end of a building and insufficient heat supply at the tail end can be solved; 6. the heat consumption is reduced, and the circulation resistance of the secondary net is reduced. In the system, loads of electric facilities such as a grate of a boiler, an induced draft fan, a secondary net water pump and the like are reduced, and electric power is saved; 7. the computer system can realize 30-second inspection once, can perform real-time regulation and control in 24 hours all day, and can completely implement the heat supply design of the technical head. And the control is smooth and stable.
In some embodiments, the valve controller 6 includes a valve position acquisition module 61, a first valve control module 62, a second valve control module 63, a third valve control module 64, and a fourth valve control module 65; as shown in fig. 12, a block diagram of the controller of the present invention is shown;
the valve position collecting module 61 is used for collecting the setting position of each valve, when the valves are respectively a valve a arranged on a bypass pipe between a secondary water supply pipe and a secondary water return pipe, a valve b arranged on the secondary water supply pipe and a valve c arranged on a primary water supply pipe, a command is sent to the first valve control module 62, and when the valves are the valve a provided on the bypass pipe between the secondary water supply pipe and the secondary water return pipe and the valve c provided on the primary water supply pipe, an instruction is sent to the second valve control module 63, and when the valves are the valve a provided on the bypass pipe between the secondary water supply pipe and the secondary water return pipe and the valve b provided on the secondary water supply pipe, an instruction is sent to the third valve control module 64, and when the valve is a valve a arranged on a bypass pipe between the secondary water supply pipe and the secondary water return pipe, an instruction is sent to the fourth valve control module 65;
the first valve control module 62 is configured to determine sizes of T1 and T2, determine whether the valve a has reached a maximum opening degree when T1 is greater than T2, close the valve c by an opening degree of k3 if the valve a reaches the maximum opening degree, open the valve a by an opening degree of k1 if the valve a does not reach the maximum opening degree, and close the valve b by an opening degree of k2 if the valve a does not reach the maximum opening degree; when T1 is smaller than T2, whether the valve a is completely closed is judged, if yes, the valve c is opened by k3, if not, the valve a is closed by k1 and the valve b is opened by k2, and if T1 is equal to T2, no regulation is carried out;
the second valve control module 63 is configured to determine the sizes of T1 and T2, determine whether the valve a has reached the maximum opening degree when T1 is greater than T2, close the valve c by the opening degree of k3 if yes, and open the valve a by the opening degree of k1 if no; when T1 is smaller than T2, whether the valve a is completely closed is judged, if yes, the valve c is opened by k3, if not, the valve a is closed by k1, and if T1 is equal to T2, regulation is not carried out;
the third valve control module 64 is used for judging the sizes of T1 and T2, and when T1 is larger than T2, the valve a is opened by k1 opening degree and the valve b is closed by k2 opening degree; when T1 is smaller than T2, valve a is closed by k1 opening degree, and valve b is opened by k2 opening degree, if T1 is equal to T2, no regulation is carried out;
the fourth valve control module 65 is configured to determine sizes of T1 and T2, and open the valve a by an opening k1 when T1 is greater than T2; when T1 is smaller than T2, closing the valve a by an opening of k1, and if T1 is equal to T2, not regulating;
0≦K1、k2、k3≦100。
the control system of the invention adopts a valve position acquisition module to acquire the setting position of each valve, adopts different valve control modules according to the different setting positions of the valves, can more accurately control the water supply temperature in each building, and has smooth and stable control.
In some examples, the valve controller 6 further includes an upper and lower limit collecting module 66 and a calculating module 67, as shown in fig. 13, which shows a structural block diagram of the controller of the present invention;
the upper and lower limit acquisition module 66 is used for acquiring upper and lower limits a1 and a2 of the valve a and upper and lower limits b1 and b2 and k1 of the valve b, and sending the acquired information to the calculation module 67;
the calculating module 67 is configured to calculate a value k2 according to a relationship between the operating opening k2 of the valve b and the operating opening k1 of the valve a and the value k1, and send the value k2 to the first valve control module 62 and the third valve control module 64, where the operation formula is as follows:
according to the invention, the relation between k1 and k2 is limited by the upper and lower limit acquisition module 66 and the calculation module 67, so that the water supply temperature of each building is more reasonable and more meets the water supply requirement
The connection relationship between the devices in the drawings of the present invention is for clearly explaining the need of information interaction and control process, and therefore should be regarded as a logical connection relationship, and should not be limited to physical connection only; the present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (4)
1. An intelligent pipe network control method is characterized in that the intelligent pipe network mainly comprises a secondary network and at least one valve, and the intelligent pipe network control method comprises the following steps:
real-time outdoor temperature T acquisitionOuter coverAccording to the historical outdoor temperature TOuter coverAnd the theoretical water supply temperature T2 of the secondary network determines the current theoretical water supply temperature T2 of the secondary network;
acquiring the current water supply temperature T1 and valve opening data of the secondary network, and adjusting the opening of the valve according to the sizes of T2 and T1;
the intelligent pipe network further comprises a primary network, and the intelligent pipe network control method further comprises the following steps: collecting the setting position of a valve when the valve is respectively a valve a arranged on a bypass pipe between a secondary water supply pipe and a secondary water return pipe, a valve b arranged on the secondary water supply pipe and a valve c arranged on a primary water supply pipe; the specific method for adjusting the opening degree of the valve according to the sizes of T2 and T1 is as follows: judging the sizes of T1 and T2, when T1 is larger than T2, judging whether the valve a reaches the maximum opening degree, if so, closing the valve c by the opening degree of k3, if not, opening the valve a by the opening degree of k1, and closing the valve b by the opening degree of k 2; when T1 is smaller than T2, whether the valve a is completely closed is judged, if yes, the valve c is opened by k3, if not, the valve a is closed by k1 and the valve b is opened by k2, and if T1 is equal to T2, no regulation is carried out;
0≦K1、k2、k3≦100；
the intelligent pipe network control method further comprises the following steps: collecting the setting position of a valve, when the valve is respectively a valve a arranged on a bypass pipe between a secondary water supply pipe and a secondary water return pipe and a valve c arranged on a primary water supply pipe, according to the sizes of T2 and T1, the specific method for adjusting the opening degree of the valve is as follows: judging the sizes of T1 and T2, when T1 is larger than T2, detecting whether the valve a reaches the maximum opening degree, if so, closing the valve c by the opening degree of k3, and if not, opening the valve a by the opening degree of k 1; when T1 is smaller than T2, whether the valve a is completely closed is detected, if yes, the valve c is opened by k3, if not, the valve a is closed by k1, and if T1 is equal to T2, regulation is not carried out;
0≦K1、k2、k3≦100；
the intelligent pipe network control method further comprises the following steps: collecting the setting position of a valve, when the valve is respectively a valve a arranged on a bypass pipe between a secondary water supply pipe and a secondary water return pipe and a valve b arranged on the secondary water supply pipe, according to the sizes of T2 and T1, the specific method for adjusting the opening degree of the valve is as follows: judging the sizes of T1 and T2, and when T1 is larger than T2, opening the valve a by k1 and closing the valve b by k 2; when T1 is smaller than T2, valve a is closed by k1 opening degree, and valve b is opened by k2 opening degree, if T1 is equal to T2, no regulation is carried out;
0≦K1、k2、k3≦100；
the intelligent pipe network control method further comprises the following steps: collecting the setting position of a valve, and when the valve is a valve a arranged on a bypass pipe between a secondary water supply pipe and a secondary water return pipe, adjusting the opening of the valve according to the sizes of T2 and T1 by the specific method as follows: judging the sizes of T1 and T2, and opening the valve a by k1 opening degree when T1 is larger than T2; when T1 is smaller than T2, closing the valve a by an opening of k1, and if T1 is equal to T2, not regulating;
0≦K1、k2、k3≦100；
the intelligent pipe network control method further comprises the following steps: collecting the values of the upper limit a1 and a2 of the valve a and the upper limit b1, b2 and k1 of the valve b, obtaining a value of k2 according to the relation between k1 and k2 and the value of k1, wherein the relation between the operation opening k2 and the operation opening k1 of the valve b is as follows:
2. the intelligent pipe network control method according to claim 1, wherein the intelligent pipe network control method further comprises the following steps: calculating | T1-T2|, and adjusting the opening of each valve according to the calculation result; when the absolute value of T1-T2 is more than or equal to 0.8 and less than 1, adjusting the opening degree of each valve by 5 percent correspondingly; when the absolute value of T1-T2 is more than or equal to 0.6 and less than 0.8, the opening degree of each valve is correspondingly adjusted by 4 percent; when the absolute value of T1-T2 is more than or equal to 0.4 and less than 0.6, adjusting the opening degree of each valve by 3 percent correspondingly; when the absolute value of T1-T2 is more than or equal to 0.2 and less than 0.4, adjusting the opening degree of each valve by 2 percent correspondingly; when 0< | T1-T2| <0.2, each valve is correspondingly adjusted to 1% opening degree.
3. An intelligent pipe network control system is characterized by comprising a mapping relation acquisition module (1), an outdoor temperature acquisition module (2), a theoretical water supply temperature determination module (3), a water supply temperature acquisition module (4), a valve opening detection module (5) and a valve controller (6);
the mapping relation acquisition module (1) is used for acquiring outdoor temperature TOuter coverAnd the theoretical water supply temperature T2 of the secondary network and sending the mapping relation to the theoretical water supply temperature determining module (3);
the outdoor temperature acquisition module (2) is used for acquiring outdoor temperature TOuter coverAnd combining said TOuter coverSending the water to the theoretical water supply temperature determining module (3);
the theoretical water supply temperature determining module (3) is used for determining the outdoor temperature T according to the received outdoor temperatureOuter coverDetermining the theoretical water supply temperature T2 of the secondary network according to the mapping relation;
the water supply temperature acquisition module (4) acquires the current water supply temperature T1 of the secondary network;
the valve opening detection module (5) is used for detecting the original opening of the valve;
the valve controller (6) is used for adjusting the opening degree of the valve according to the sizes of T2 and T1 and the original opening degree of each valve;
the valve controller (6) comprises a valve position acquisition module (61), a first valve control module (62), a second valve control module (63), a third valve control module (64) and a fourth valve control module (65);
the valve position acquisition module (61) is used for acquiring the setting positions of all valves, when the valves are respectively a valve a arranged on a bypass pipe between a secondary water supply pipe and a secondary water return pipe, a valve b arranged on the secondary water supply pipe and a valve c arranged on a primary water supply pipe, an instruction is sent to the first valve control module (62), when the valves are respectively a valve a arranged on the bypass pipe between the secondary water supply pipe and the secondary water return pipe and a valve c arranged on the primary water supply pipe, an instruction is sent to the second valve control module (63), when the valves are respectively a valve a arranged on the bypass pipe between the secondary water supply pipe and the secondary water return pipe and a valve b arranged on the secondary water supply pipe, an instruction is sent to the third valve control module (64), and when the valves are arranged on the secondary water supply pipe and the secondary water return pipe, When a valve a on the bypass pipe between the secondary water return pipes is in use, an instruction is sent to the fourth valve control module (65);
the first valve control module (62) is used for judging the sizes of T1 and T2, when T1 is larger than T2, whether the valve a reaches the maximum opening degree is judged, if yes, the valve c is closed by the opening degree of k3, if not, the valve a is opened by the opening degree of k1, and meanwhile, the valve b is closed by the opening degree of k 2; when T1 is smaller than T2, whether the valve a is completely closed is judged, if yes, the valve c is opened by k3, if not, the valve a is closed by k1 and the valve b is opened by k2, and if T1 is equal to T2, no regulation is carried out;
the second valve control module (63) is used for judging the sizes of T1 and T2, judging whether the valve a reaches the maximum opening degree when T1 is larger than T2, if so, closing the valve c by the opening degree of k3, and if not, opening the valve a by the opening degree of k 1; when T1 is smaller than T2, whether the valve a is completely closed is judged, if yes, the valve c is opened by k3, if not, the valve a is closed by k1, and if T1 is equal to T2, regulation is not carried out;
the third valve control module (64) is used for judging the sizes of T1 and T2, and when T1 is larger than T2, the valve a is opened by k1 opening degree and the valve b is closed by k2 opening degree; when T1 is smaller than T2, valve a is closed by k1 opening degree, and valve b is opened by k2 opening degree, if T1 is equal to T2, no regulation is carried out;
the fourth valve control module (65) is used for judging the sizes of T1 and T2, and opening the valve a by k1 opening degree when T1 is larger than T2; when T1 is smaller than T2, closing the valve a by an opening of k1, and if T1 is equal to T2, not regulating;
0≦K1、k2、k3≦100。
4. the intelligent pipe network control system according to claim 3, wherein the valve controller (6) further comprises an upper and lower limit acquisition module (66) and a calculation module (67),
the upper and lower limit acquisition module (66) is used for acquiring upper and lower limits a1 and a2 of the valve a and upper and lower limits b1 and b2 and k1 of the valve b, and sending acquired information to the calculation module (67);
the calculating module (67) is used for calculating a value k2 according to the relation between the operation opening k2 of the valve b and the operation opening k1 of the valve a and the value k1, and sending the value k2 to the first valve control module (62) and the third valve control module (64), wherein the operation formula is as follows:
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