CN112902289A - Flow distribution control method in water control system and water control system - Google Patents
Flow distribution control method in water control system and water control system Download PDFInfo
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- CN112902289A CN112902289A CN202110104123.XA CN202110104123A CN112902289A CN 112902289 A CN112902289 A CN 112902289A CN 202110104123 A CN202110104123 A CN 202110104123A CN 112902289 A CN112902289 A CN 112902289A
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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
Abstract
The invention discloses a control method for flow distribution in a water control system and the water control system, wherein the water control system comprises a water collector, a control module and a driving mechanism electrically connected with the control module; the water collector comprises a water collecting main body, a first temperature acquisition module and a second temperature acquisition module; the first temperature acquisition module is used for acquiring inlet water temperature values when water flows enter each water inlet connection structure, and the second temperature acquisition module is used for acquiring mixed water temperature values at the junction of each water flow; the control module is used for calculating a water flow proportion corresponding to each water inlet pipeline according to the water inlet temperature value and the water mixing temperature value, generating a first trigger signal and sending the first trigger signal to the driving mechanism; different driving mechanisms are used for adjusting the water flow in the corresponding water inlet pipeline according to the first trigger signal. The invention realizes the automatic, timely and accurate regulation and distribution of the water flow in each pipeline, can timely regulate the water flow in each pipeline according to the use requirements of users, and improves the use experience of the users.
Description
Technical Field
The invention relates to the technical field of heating and ventilation equipment, in particular to a control method for flow distribution in a water control system and the water control system.
Background
When the water inlet pipeline is laid on the floor heating system, the resistance of the water inlet pipeline of each path in a family is difficult to keep consistent, especially when the water inlet pipeline laid in some rooms is too long and the water inlet pipeline laid in some rooms is too short, the flow of heating water flowing through each path is inconsistent, and finally the situations that some rooms are heated slowly and other rooms are heated quickly occur.
The current methods for dealing with the problems include: (1) when the room of the user is not hot, a service technician goes to the door to readjust the opening degree of each valve in the water distributor-collector, so that the hot fast path is closed to be smaller, and the hot slow path is opened to be larger; however, the regulation mode cannot accurately regulate the flow of each path, and can only depend on the experience of a master. If the heating effect is not good, the service technician needs to go to the door again for adjustment. (2) Installing a float flowmeter on each road of the water distributor-collector, and adjusting the flow of each road to be consistent by an installation master according to the display value of the flowmeter when the heating system is debugged; but float flowmeter exists with high costs, occupies bulky, and shortcoming such as can not intelligent regulation, and in case when closing the heating demand of a certain way, the flow in other ways will take place different changes to lead to each way flow unbalanced again, all rely on the manual mode to adjust the normal water flow in every pipeline in the partial water collector promptly now, have the regulation effect poor and adjust the lower scheduling problem of efficiency, can not satisfy the in-service use demand.
Disclosure of Invention
The invention aims to overcome the defects that in the prior art, a water distributor and a water collector in a water control system need to be adjusted manually, the adjusting effect is poor, the adjusting efficiency of flow adjustment is low, and the actual using requirements cannot be met, and provides a control method for flow distribution in the water control system and the water control system.
The invention solves the technical problems through the following technical scheme:
the invention provides a water control system, which comprises a water collector, a control module and a driving mechanism electrically connected with the control module;
the water collector comprises a water collecting main body, a first temperature acquisition module and a second temperature acquisition module, wherein the first temperature acquisition module and the second temperature acquisition module are electrically connected with the control module;
each water inlet connecting structure is provided with the first temperature acquisition module, and the water flow junction corresponding to different water inlet pipelines in the water collecting main body is respectively provided with the second temperature acquisition module;
the first temperature acquisition module is used for acquiring water inlet temperature values of water flows entering each water inlet connecting structure and sending the water inlet temperature values to the control module, and the second temperature acquisition module is used for acquiring mixed water temperature values of each water flow junction and sending the mixed water temperature values to the control module;
the control module is used for calculating a water flow proportion corresponding to each water inlet pipeline according to the water inlet temperature value and the water mixing temperature value, generating a first trigger signal according to the water flow proportion and sending the first trigger signal to the driving mechanism;
and different driving mechanisms are used for adjusting the water flow in the corresponding water inlet pipeline according to the first trigger signal.
Preferably, the water collecting body comprises a first body structure and a first main pipeline, the first main pipeline is arranged in the first body structure;
the water inlet connecting structure and the driving mechanism are fixedly arranged on the outer side of the first main body structure;
and the positions corresponding to the different water flow junction parts on the first main pipeline are provided with the second temperature acquisition modules.
Preferably, the water control system further comprises a water distributor, the water distributor comprises a water distribution main body, the water distribution main body is provided with a plurality of water outlet connecting structures, each water outlet connecting structure is connected with one water outlet pipeline, and each driving mechanism is fixedly arranged on the water distribution main body and corresponds to one water outlet pipeline respectively.
Preferably, the water collecting main body further comprises a connecting part, and the connecting part is fixedly arranged at the water outlet end of the first main body structure and is communicated with the first main pipeline;
the connecting part is provided with the second temperature acquisition module, and the second temperature acquisition module is used for acquiring the mixed water temperature value after the water flows of all the water inlet pipelines in the connecting part are converged.
Preferably, the control module calculates, according to the inlet water temperature value and the mixed water temperature value, a calculation formula corresponding to a water flow proportion corresponding to each of the inlet water pipelines as follows:
Q1T1+Q2T2＝(Q1+Q2)TN+1
Q3T3+(Q1+Q2)TN+1＝(Q1+Q2+Q3)TN+2
……
QNTN+(Q1+Q2+…+QN-1)T2N-2＝(Q1+Q2+…+QN)T2N-1
Q1+Q2+…+QN＝C
wherein, T1～TNThe temperature values T of the inlet water collected by the first temperature collection modules correspond to N respectivelyN+1～T2N-1Respectively correspond to the mixed water temperature values Q collected by the N-1 second temperature collection modules which are sequentially arranged along the water inlet direction1～QNAnd C is a constant corresponding to the water flow rate ratio corresponding to each water inlet pipeline, N is more than or equal to 2, and N is an integer.
Preferably, the control module is further configured to obtain a set temperature value corresponding to a target pipeline with a reset temperature, recalculate a new water flow ratio corresponding to each water inlet pipeline according to the set temperature value, the mixed water temperature value, and the inlet water temperature value corresponding to the water inlet pipeline outside the target pipeline, generate a new first trigger signal according to the new water flow ratio, and send the new first trigger signal to the driving mechanism.
Preferably, the water collector further comprises a main valve and a flow collecting module;
the flow acquisition module and the main valve are sequentially arranged at one end of the connecting part far away from the first main body structure and connected, and the flow acquisition module is electrically connected with the control module;
the flow collection module is used for collecting a total flow value output by the water collector and sending the total flow value to the control module;
the control module is used for calculating a water inlet flow value corresponding to each water inlet pipeline according to the water flow proportion and the total flow value, generating a second trigger signal and sending the second trigger signal to the driving mechanism;
and different driving mechanisms are used for adjusting the water flow in the corresponding water inlet pipeline by the second trigger signal.
Preferably, the driving mechanism comprises a servo motor and a valve structure, and the servo motor is electrically connected with the valve structure and the control module respectively;
each servo motor is used for driving the opening of a valve core in the valve structure according to the first trigger signal sent by the control module so as to adjust the proportion from the water flow in the corresponding water inlet pipeline to the water flow; or the like, or, alternatively,
each servo motor is used for driving the opening of a valve core in the valve structure according to the second trigger signal sent by the control module so as to adjust the water flow in the corresponding water inlet pipeline to the water flow value.
Preferably, the main body of the water diversion comprises a second main body structure and a second main pipeline, and the second main pipeline is arranged in the second main body structure;
each water outlet connecting structure and the driving mechanism are fixedly arranged on the outer side of the second main body structure, and each water outlet connecting structure is communicated with the second water outlet pipeline.
The invention also provides a control method for flow distribution in the water control system, which is realized based on the water control system and comprises the following steps:
the first temperature acquisition module acquires inlet water temperature values of water flow entering each water inlet connection structure and sends the inlet water temperature values to the control module;
the second temperature acquisition module acquires a mixed water temperature value at each water flow junction and sends the mixed water temperature value to the control module;
the control module calculates a water flow proportion corresponding to each water inlet pipeline according to the inlet water temperature value and the mixed water temperature value, generates a first trigger signal according to the water flow proportion and sends the first trigger signal to the driving mechanism;
and different driving mechanisms adjust the water flow in the corresponding water inlet pipeline according to the first trigger signal.
Preferably, the calculation formula corresponding to the step of calculating by the control module according to the inlet water temperature value and the mixed water temperature value to obtain the water flow proportion corresponding to each inlet water pipeline is as follows:
Q1T1+Q2T2＝(Q1+Q2)TN+1
Q3T3+(Q1+Q2)TN+1＝(Q1+Q2+Q3)TN+2
……
QNTN+(Q1+Q2+…+QN-1)T2N-2＝(Q1+Q2+…+QN)T2N-1
Q1+Q2+…+QN＝C
wherein, T1～TNThe temperature values T of the inlet water collected by the first temperature collection modules correspond to N respectivelyN+1～T2N-1Respectively correspond to the mixed water temperature values Q collected by the N-1 second temperature collection modules which are sequentially arranged along the water inlet direction1～QNWater flow corresponding to each water inlet pipeline respectivelyAnd C is a constant, N is more than or equal to 2 and is an integer.
Preferably, the control method further includes:
the control module obtains a set temperature value corresponding to a target pipeline with a reset temperature, recalculates the set temperature value, the mixed water temperature value and the inlet water temperature value corresponding to the inlet water pipeline outside the target pipeline to obtain a new water flow proportion corresponding to each inlet water pipeline, generates a new first trigger signal according to the new water flow proportion and sends the new first trigger signal to the driving mechanism.
Preferably, when the water collector further includes a main valve and a flow collection module, the flow collection module and the main valve are sequentially disposed at one end of the connection portion, which is far away from the first main structure of the water collection main body, and connected, and the flow collection module is electrically connected to the control module, the control method further includes:
the flow collection module collects a total flow value output by the water collector and sends the total flow value to the control module;
the control module calculates a water inlet flow value corresponding to each water inlet pipeline according to the water flow proportion and the total flow value, generates a second trigger signal and sends the second trigger signal to the driving mechanism;
the second trigger signals of different driving mechanisms adjust the water flow in the corresponding water inlet pipeline.
The positive progress effects of the invention are as follows:
(1) the water collector is provided with a temperature sensor at each water inlet respectively to acquire a water inlet temperature value in real time, the temperature sensors are arranged at the junctions of water flows corresponding to different water inlet pipelines on the water collecting main pipeline respectively to acquire mixed water temperature values of different pipelines in real time, and the water inlet temperature values and the mixed water temperature values are fed back to a control module of the water control system; (2) when a user needs to reset the temperature of a certain room or a plurality of rooms, a new water flow proportion is obtained through recalculation so as to adjust the water flow in each pipeline in time, dynamic and timely adjustment is realized to meet the use requirements of the user, the use experience of the user is improved, the water flow distribution efficiency in each pipeline of the water control system is further improved, and the overall performance of the heating water control center is improved; (3) the flow detection module is arranged on the main pipeline to calculate and obtain the water inflow value corresponding to each pipeline, so that the quantitative control of water flow in each pipeline is realized, and the flow distribution efficiency and the regulation effect of the heating water control center are effectively improved.
Drawings
Fig. 1 is a first structural schematic diagram of a water control system according to embodiment 1 of the present invention.
Fig. 2 is a second structural schematic diagram of the water control system according to embodiment 1 of the present invention.
Fig. 3 is a flowchart of a control method for flow rate distribution in a water control system according to embodiment 2 of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1 and 2, the water control system of the present embodiment includes a water collector 300, a control module 400, and a driving mechanism 500 electrically connected to the control module 400, wherein the water collector 300 includes a water collector 100 and a water separator 200.
Wherein, actuating mechanism can set up in the water collector, also can set up in the water knockout drum, specifically can install and adjust according to actual conditions.
Specifically, when the driving mechanism may be provided in the sump, as shown in fig. 1, the sump 100 of the present embodiment includes a sump body 1, a first temperature collection module 2, a second temperature collection module 3, a driving mechanism 500, a main valve 4, a first exhaust valve 5, and a first exhaust valve 6 (arrows in the figure indicate water flow directions).
The water collecting main body 1 is provided with a plurality of water inlet connecting structures 7, and each water inlet connecting structure 7 is connected with a water inlet pipeline and corresponds to one driving mechanism 500;
when the water collector of the embodiment is applied to a heating water control center of each household, each water inlet pipeline corresponds to a floor heating pipeline laid in one room to heat each room, namely, the water flow and the water temperature in each water inlet pipeline determine the temperature value in the corresponding room.
Every is equipped with a first temperature acquisition module 2 on the connection structure 7 of intaking, and the rivers that different inlet lines correspond in the main part 1 that catchments meet and are equipped with a second temperature acquisition module 3 respectively.
In particular, the water collecting body 1 of the present embodiment comprises a first main structure 8, a first main pipe 9 and a connection portion 10, the first main pipe 9 being penetratingly arranged within the first main structure 8.
The water inlet connecting structure 7 and the driving mechanism 500 are fixedly arranged on the outer side of the first main body structure 8;
the positions of the first main pipeline 9 corresponding to the junction of different water flows are respectively provided with a second temperature acquisition module 3.
The connecting part is fixedly arranged at the water outlet end of the first main body structure 8 and is communicated with the first main pipeline 9;
wherein, connecting portion 10 corresponds the rivers that all inlet channels correspond and joins the department, is equipped with a second temperature acquisition module 3 on the connecting portion 10, and second temperature acquisition module 3 is used for gathering the muddy water temperature value after all inlet channels's rivers meet.
Of course, each water inlet connection structure and each water flow junction can also be provided with a plurality of temperature sensors to acquire corresponding temperature values, and then the temperature values acquired at corresponding positions are finally determined according to calculation modes such as averaging and the like of the temperature values, so that the accuracy of temperature acquisition is ensured. The quantity configuration and the position setting of the water inlet connection structure and the water flow junction can be redetermined and adjusted according to actual requirements.
In addition, the main valve 4 of the present embodiment is connected to an end of the connecting portion 10 away from the first main structure 8, and the main valve 4 is electrically connected to an external controller, so that the water flow in the water collector is distributed or concentrated by opening or closing the main valve 4.
The first exhaust valve 5 is fixedly arranged at one end, far away from the water outlet end, of the first main structure 8, and the first exhaust valve 5 is used for timely discharging waste gas in the first main structure out of the water collecting main body to guarantee the service life of the water collector.
The water collector based on the embodiment can realize uniform distribution of water flow in each pipeline, so that the temperature of a room corresponding to each pipeline is kept consistent; the water flow in each pipeline can be unevenly distributed according to a certain ratio, so that the requirements of users on different heating temperatures of different rooms are met, and the use experience of the users is greatly improved.
The water collector of this embodiment may be fixed by using the component a in fig. 1, and certainly, other fixing components may be used to fix the water collector according to actual requirements, which is not described herein again.
The water collector of the present embodiment can also be applied to other water flow distribution scenarios, and the water flow distribution principle in each pipeline is basically the same as the working principle of the present embodiment, and therefore, the details are not repeated here.
The water separator 200 of the present embodiment includes a filter 11, a water separating body 12, a second discharge valve 13, and a second soil exhaust valve 14.
Wherein the main body 12 comprises a second main body structure 15 and a second main pipeline 16, and the second main pipeline 16 is arranged in the second main body structure 15;
the outer side of the second main body structure 15 is fixedly provided with a plurality of water outlet connecting structures 17 and driving mechanisms 500, each water outlet connecting structure 17 is connected with a water outlet pipeline and is communicated with the second main pipeline 16, and each water outlet pipeline corresponds to a water inlet pipeline.
The filter is connected to the second main structure 15 and communicates with the second main line 16;
the filter is used for filtering the inflow water and delivering the inflow water to the second main pipeline 16 to be distributed to the water outlet pipelines respectively.
The second discharge valve 13 is fixedly arranged at one end of the second main structure 15 far away from the water inlet end, and is used for timely discharging waste gas in the second main structure 15 out of the water distributor to ensure the service life of the water distributor.
The fixed one end of keeping away from the end of intaking in second major structure 15 that sets up of second blowoff valve 14, the second blowoff valve communicates with the second major structure 15 of the main part that catchments, and the second blowoff valve is arranged in the sewage discharge second major structure 15 in the main part that divides, avoids sewage to produce the dirt, causes the damage to the main part that divides water to the life of extension water knockout drum.
The water separator of this embodiment may be fixed by using the component B in fig. 1, and certainly, other fixing components may be used to fix the water separator according to actual needs, which is not described herein again.
In addition, when the driving mechanism is arranged in the water separator, as shown in fig. 2, the driving mechanism is not arranged on the main structure of the water collector, but arranged on the main structure of the water separator, and the water flow in the corresponding pipeline can be independently controlled.
The first temperature acquisition module 2 is used for acquiring inlet water temperature values of water flows entering each water inlet connection structure 7 and sending the inlet water temperature values to the external controller, and the second temperature acquisition module 3 is used for acquiring mixed water temperature values of each water flow junction and sending the mixed water temperature values to the external controller;
wherein, the first temperature acquisition module 2 and the second temperature acquisition module 3 both include but are not limited to temperature sensors.
The control module is used for calculating a water flow proportion corresponding to each water inlet pipeline according to the water inlet temperature value and the mixed water temperature value, generating a first trigger signal according to the water flow proportion and sending the first trigger signal to the driving mechanism;
specifically, the control module calculates a calculation formula corresponding to the water flow proportion corresponding to each water inlet pipeline according to the water inlet temperature value and the water mixing temperature value as follows:
Q1T1+Q2T2＝(Q1+Q2)TN+1
Q3T3+(Q1+Q2)TN+1＝(Q1+Q2+Q3)TN+2
……
QNTN+(Q1+Q2+…+QN-1)T2N-2＝(Q1+Q2+…+QN)T2N-1
Q1+Q2+…+QN＝C
wherein, T1～TNRespectively corresponding to the water inlet temperature values T acquired by the N first temperature acquisition modulesN+1～T2N-1Respectively corresponding to the mixed water temperature values Q collected by the N-1 second temperature collection modules1～QNAnd C is a constant corresponding to the water flow rate ratio corresponding to each water inlet pipeline, N is not less than 2 and is an integer.
Taking the case that the heating water control system corresponds to 4 pipes (for heating four rooms in a home), as shown in fig. 1, the temperatures detected by the first temperature sensor installed in the water collector correspond to T1, T2, T3 and T4, respectively, the temperatures detected by the first temperature sensor correspond to T5, T6 and T7, respectively, the flow rates of each of the pipes are Q1, Q2, Q3 and Q4, respectively, and it can be known from the heat conservation:
Q1T1+Q2T2＝(Q1+Q2)T5
Q3T3+(Q1+Q2)T5＝(Q1+Q2+Q3)T6
Q4T4+(Q1+Q2+Q3)T6＝(Q1+Q2+Q3+Q4)T7
let total flow be 1, then:
Q1+Q2+…+QN＝1
the temperature values in the formula are known, the share of the flow in each pipeline in the total flow can be directly obtained, and the opening degree of the valve corresponding to each pipeline is adjusted according to the flow in each pipeline; the pipeline with large flow share controls the servo motor to close the corresponding valve, otherwise, the corresponding valve is opened, and dynamic adjustment is kept until the flow shares of all the pipelines are finally adjusted to be consistent, so that the heating temperature of each room is consistent; or the flow rate of each pipeline is adjusted to a certain value so that the heating temperature of each room reaches the corresponding requirement.
When the flow share in each pipeline needs to be consistent, the calculation process needs to be repeated continuously to finally realize that the corresponding water flow proportion of each pipeline is the same, so as to achieve the purpose of uniform flow distribution of each pipeline.
When a user needs to preferentially heat one or more paths, a new water flow proportion is obtained through the control module based on the calculation formula, and the flow of other pipelines is adjusted based on the water flow proportion to increase the flow share in the target pipeline.
Different driving mechanisms are used for adjusting the water flow in the corresponding water inlet pipeline according to the first trigger signal.
Specifically, when actuating mechanism 500 includes servo motor and valve structure, servo motor is arranged in receiving the corresponding first trigger signal that external control ware sent and drives valve core aperture among the valve structure among every actuating mechanism, and then adjusts the discharge in corresponding pipeline, realizes the automatic and accurate regulation to water flow in different pipelines promptly, has improved current discharge distribution efficiency, has promoted the product performance of water collector, and then has guaranteed the wholeness ability of branch water collector.
The control module is further used for obtaining a set temperature value corresponding to the target pipeline with the temperature reset, recalculating to obtain a new water flow proportion corresponding to each water inlet pipeline according to the set temperature value, the mixed water temperature value and the inlet water temperature value corresponding to the water inlet pipeline outside the target pipeline, generating a new first trigger signal according to the new water flow proportion and sending the new first trigger signal to the driving mechanism.
In addition, the manifold also includes a flow collection module including, but not limited to, a venturi flow sensor.
The flow acquisition module and the main valve are sequentially arranged at one end of the connecting part far away from the first main body structure and connected, and the flow acquisition module is electrically connected with the control module;
the flow collection module is used for collecting a total flow value output by the water collector and sending the total flow value to the control module;
the control module is used for calculating a water inlet flow value corresponding to each water inlet pipeline according to the water flow proportion and the total flow value, generating a second trigger signal and sending the second trigger signal to the driving mechanism;
different driving mechanisms are used for adjusting the water flow in the corresponding water inlet pipeline by the second trigger signal.
At the moment, each servo motor is used for driving the opening of a valve core in the valve structure according to a second trigger signal sent by the control module so as to regulate the water flow in the corresponding water inlet pipeline to a water flow value.
The flow detection module is arranged on the main pipeline to calculate and obtain the water inflow value corresponding to each pipeline, so that the quantitative control of water flow in each pipeline is realized, and the flow distribution efficiency and the regulation effect of the heating water control center are effectively improved.
When the water control system is a heating water control system, the water control system further includes heating equipment 18, and the heating equipment 18 is communicated between the water collector 100 and the water separator 200.
The heating device 18 is a heating stove for heating the water flow output from the water collector and delivering the water flow to the water separator for distribution to each room of a user (such as a home) to achieve heating effect.
In the embodiment, the water collector is provided with the temperature sensors at each water inlet respectively so as to acquire the water inlet temperature values in real time, the temperature sensors are respectively arranged at the water flow junction corresponding to different water inlet pipelines on the water collecting main pipeline so as to acquire the mixed water temperature values of different pipelines in real time, and the water inlet temperature values and the mixed water temperature values are fed back to the control module of the water control system; when a user needs to reset the temperature of a certain room or a plurality of rooms, a new water flow proportion is obtained through recalculation based on the water inlet temperature value, the water mixing temperature and the reset temperature value, the water flow in each pipeline is adjusted in time, the use requirements of the user are met through dynamic and timely adjustment, the use experience of the user is improved, the water flow distribution efficiency in each pipeline of the water control system is further improved, and the overall performance of the heating water control center is improved.
Example 2
The control method of flow distribution in the water control system of the present embodiment is realized based on the water control system of embodiment 1.
As shown in fig. 3, the method for controlling flow distribution in a water control system according to the present embodiment includes:
s101, a first temperature acquisition module acquires inlet water temperature values of water flows entering each inlet water connection structure and sends the inlet water temperature values to a control module;
s102, the second temperature acquisition module is used for acquiring a mixed water temperature value of each water flow junction and sending the mixed water temperature value to the control module;
the execution sequence of steps S101 and S102 may be interchanged, or may be executed synchronously, which may be determined and adjusted according to the actual situation.
S103, the control module calculates water flow proportion corresponding to each water inlet pipeline according to the water inlet temperature value and the water mixing temperature value, generates a first trigger signal according to the water flow proportion and sends the first trigger signal to the driving mechanism;
specifically, the method comprises the following steps: the calculation formula corresponding to the step that the control module calculates and obtains the water flow proportion corresponding to each water inlet pipeline according to the water inlet temperature value and the water mixing temperature value is as follows:
Q1T1+Q2T2＝(Q1+Q2)TN+1
Q3T3+(Q1+Q2)TN+1＝(Q1+Q2+Q3)TN+2
……
QNTN+(Q1+Q2+…+QN-1)T2N-2＝(Q1+Q2+…+QN)T2N-1
Q1+Q2+…+QN＝C
wherein, T1～TNRespectively corresponding to the water inlet temperature values T acquired by the N first temperature acquisition modulesN+1～T2N-1Respectively corresponding to the mixed water temperature values Q collected by the N-1 second temperature collection modules1～QNAnd C is a constant corresponding to the water flow rate ratio corresponding to each water inlet pipeline, N is not less than 2 and is an integer.
Taking the case that the heating water control system corresponds to 4 pipes (for heating four rooms in a home), as shown in fig. 1, the temperatures detected by the first temperature sensor installed in the water collector correspond to T1, T2, T3 and T4, respectively, the temperatures detected by the first temperature sensor correspond to T5, T6 and T7, respectively, the flow rates of each of the pipes are Q1, Q2, Q3 and Q4, respectively, and it can be known from the heat conservation:
Q1T1+Q2T2＝(Q1+Q2)T5
Q3T3+(Q1+Q2)T5＝(Q1+Q2+Q3)T6
Q4T4+(Q1+Q2+Q3)T6＝(Q1+Q2+Q3+Q4)T7
let total flow be 1, then:
Q1+Q2+…+QN＝1
the temperature values in the formula are known, the share of the flow in each pipeline in the total flow can be directly obtained, and the opening degree of the valve corresponding to each pipeline is adjusted according to the flow in each pipeline; the pipeline with large flow share controls the servo motor to close the corresponding valve, otherwise, the corresponding valve is opened, and dynamic adjustment is kept until the flow shares of all the pipelines are finally adjusted to be consistent, so that the heating temperature of each room is consistent; or the flow rate of each pipeline is adjusted to a certain value so that the heating temperature of each room reaches the corresponding requirement.
When the flow share in each pipeline needs to be consistent, the calculation process needs to be repeated continuously to finally realize that the corresponding water flow proportion of each pipeline is the same, so as to achieve the purpose of uniform flow distribution of each pipeline.
When a user needs to preferentially heat one or more paths, a new water flow proportion is obtained through the control module based on the calculation formula, and the flow of other pipelines is adjusted based on the water flow proportion to increase the flow share in the target pipeline.
And S104, adjusting the water flow in the corresponding water inlet pipeline by different driving mechanisms according to the first trigger signal.
Step S104 is followed by:
the control module also acquires a set temperature value corresponding to the target pipeline with the temperature reset, recalculates the set temperature value, the mixed water temperature value and the inlet water temperature value corresponding to the inlet water pipelines outside the target pipeline to obtain a new water flow proportion corresponding to each inlet water pipeline, generates a new first trigger signal according to the new water flow proportion and sends the new first trigger signal to the driving mechanism;
and different driving mechanisms adjust the water flow in the corresponding water inlet pipeline to a new water flow proportion according to the new first trigger signal.
In addition, when the water collector further includes a main valve and a flow collection module, the flow collection module and the main valve are sequentially arranged at one end of the first main structure of the connection part far away from the water collection main body and connected, and when the flow collection module is electrically connected with the control module, the control method of the embodiment further includes:
the flow collection module collects a total flow value output by the water collector and sends the total flow value to the control module;
the control module calculates a water inlet flow value corresponding to each water inlet pipeline according to the water flow proportion and the total flow value, generates a second trigger signal and sends the second trigger signal to the driving mechanism;
and the second trigger signals of different driving mechanisms adjust the water flow in the corresponding water inlet pipeline.
The flow detection module is arranged on the main pipeline to calculate and obtain the water inflow value corresponding to each pipeline, so that the quantitative control of water flow in each pipeline is realized, and the flow distribution efficiency and the regulation effect of the heating water control center are effectively improved.
In the embodiment, the water collector is provided with the temperature sensors at each water inlet respectively so as to acquire the water inlet temperature values in real time, the temperature sensors are respectively arranged at the water flow junction corresponding to different water inlet pipelines on the water collecting main pipeline so as to acquire the mixed water temperature values of different pipelines in real time, and the water inlet temperature values and the mixed water temperature values are fed back to the control module of the water control system; when a user needs to reset the temperature of a certain room or a plurality of rooms, a new water flow proportion is obtained through recalculation based on the water inlet temperature value, the water mixing temperature and the reset temperature value, the water flow in each pipeline is adjusted in time, the use requirements of the user are met through dynamic and timely adjustment, the use experience of the user is improved, the water flow distribution efficiency in each pipeline of the water control system is further improved, and the overall performance of the heating water control center is improved.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (13)
1. A water control system is characterized by comprising a water collector, a control module and a driving mechanism electrically connected with the control module;
the water collector comprises a water collecting main body, a first temperature acquisition module and a second temperature acquisition module, wherein the first temperature acquisition module and the second temperature acquisition module are electrically connected with the control module;
each water inlet connecting structure is provided with the first temperature acquisition module, and the water flow junction corresponding to different water inlet pipelines in the water collecting main body is respectively provided with the second temperature acquisition module;
the first temperature acquisition module is used for acquiring water inlet temperature values of water flows entering each water inlet connecting structure and sending the water inlet temperature values to the control module, and the second temperature acquisition module is used for acquiring mixed water temperature values of each water flow junction and sending the mixed water temperature values to the control module;
the control module is used for calculating a water flow proportion corresponding to each water inlet pipeline according to the water inlet temperature value and the water mixing temperature value, generating a first trigger signal according to the water flow proportion and sending the first trigger signal to the driving mechanism;
and different driving mechanisms are used for adjusting the water flow in the corresponding water inlet pipeline according to the first trigger signal.
2. The water control system of claim 1 wherein the water collection body comprises a first body structure and a first main conduit disposed within the first body structure;
the water inlet connecting structure and the driving mechanism are fixedly arranged on the outer side of the first main body structure;
and the positions corresponding to the different water flow junction parts on the first main pipeline are provided with the second temperature acquisition modules.
3. The water control system according to claim 1, further comprising a water separator, wherein the water separator comprises a water separating body, a plurality of water outlet connecting structures are arranged on the water separating body, each water outlet connecting structure is connected with one water outlet pipeline, and each driving mechanism is fixedly arranged on the water separating body and corresponds to one water outlet pipeline.
4. The water control system of claim 2, wherein the water collection body further comprises a connection portion fixedly disposed at the water outlet end of the first body structure and communicating with the first main conduit;
the connecting part is provided with the second temperature acquisition module, and the second temperature acquisition module is used for acquiring the mixed water temperature value after the water flows of all the water inlet pipelines in the connecting part are converged.
5. The water control system according to claim 1, wherein the control module calculates a calculation formula corresponding to a water flow ratio of each water inlet pipeline according to the inlet water temperature value and the mixed water temperature value as follows:
wherein, T1～TNThe temperature values T of the inlet water collected by the first temperature collection modules correspond to N respectivelyN+1～T2N-1Respectively correspond to the mixed water temperature values Q collected by the N-1 second temperature collection modules which are sequentially arranged along the water inlet direction1～QNAnd C is a constant corresponding to the water flow rate ratio corresponding to each water inlet pipeline, N is more than or equal to 2, and N is an integer.
6. The water control system according to claim 1, wherein the control module is further configured to obtain a set temperature value corresponding to a target pipeline with a reset temperature, recalculate a new water flow ratio corresponding to each water inlet pipeline according to the set temperature value, the mixed water temperature value, and the inlet water temperature value corresponding to the water inlet pipeline other than the target pipeline, generate a new first trigger signal according to the new water flow ratio, and send the new first trigger signal to the driving mechanism.
7. The water control system of claim 2 wherein the water trap further comprises a main valve and a flow collection module;
the flow acquisition module and the main valve are sequentially arranged at one end of the connecting part far away from the first main body structure and connected, and the flow acquisition module is electrically connected with the control module;
the flow collection module is used for collecting a total flow value output by the water collector and sending the total flow value to the control module;
the control module is used for calculating a water inlet flow value corresponding to each water inlet pipeline according to the water flow proportion and the total flow value, generating a second trigger signal and sending the second trigger signal to the driving mechanism;
and different driving mechanisms are used for adjusting the water flow in the corresponding water inlet pipeline by the second trigger signal.
8. The water control system of claim 7 wherein said drive mechanism includes a servo motor and a valve structure, said servo motor being electrically connected to said valve structure and said control module, respectively;
each servo motor is used for driving the opening of a valve core in the valve structure according to the first trigger signal sent by the control module so as to adjust the proportion from the water flow in the corresponding water inlet pipeline to the water flow; or the like, or, alternatively,
each servo motor is used for driving the opening of a valve core in the valve structure according to the second trigger signal sent by the control module so as to adjust the water flow in the corresponding water inlet pipeline to the water flow value.
9. The water control system of claim 3 wherein the water diversion body includes a second body structure and a second main conduit disposed within the second body structure;
each water outlet connecting structure and the driving mechanism are fixedly arranged on the outer side of the second main body structure, and each water outlet connecting structure is communicated with a second water outlet pipeline.
10. A control method for flow distribution in a water control system, the control method being implemented based on the water control system of claim 1, the control method comprising:
the first temperature acquisition module acquires inlet water temperature values of water flow entering each water inlet connection structure and sends the inlet water temperature values to the control module;
the second temperature acquisition module acquires a mixed water temperature value at each water flow junction and sends the mixed water temperature value to the control module;
the control module calculates a water flow proportion corresponding to each water inlet pipeline according to the inlet water temperature value and the mixed water temperature value, generates a first trigger signal according to the water flow proportion and sends the first trigger signal to the driving mechanism;
and different driving mechanisms adjust the water flow in the corresponding water inlet pipeline according to the first trigger signal.
11. The method for controlling flow distribution in a water control system according to claim 10, wherein the step of calculating the water flow ratio of each water inlet pipeline by the control module according to the inlet water temperature value and the mixed water temperature value corresponds to the following calculation formula:
wherein, T1～TNThe temperature values of the inlet water collected by the first temperature collection modules correspond to N respectively，TN+1～T2N-1Respectively correspond to the mixed water temperature values Q collected by the N-1 second temperature collection modules which are sequentially arranged along the water inlet direction1～QNAnd C is a constant corresponding to the water flow rate ratio corresponding to each water inlet pipeline, N is more than or equal to 2, and N is an integer.
12. A method of controlling flow distribution in a water control system according to claim 10, further comprising:
the control module obtains a set temperature value corresponding to a target pipeline with a reset temperature, recalculates the set temperature value, the mixed water temperature value and the inlet water temperature value corresponding to the inlet water pipeline outside the target pipeline to obtain a new water flow proportion corresponding to each inlet water pipeline, generates a new first trigger signal according to the new water flow proportion and sends the new first trigger signal to the driving mechanism.
13. A method of controlling flow distribution in a water control system according to any one of claims 10 to 12, wherein when the manifold further comprises a main valve and a flow collection module, the flow collection module and the main valve being sequentially disposed at an end of the connection portion remote from the first body structure of the manifold body and connected thereto, the flow collection module being electrically connected to the control module, the method further comprises:
the flow collection module collects a total flow value output by the water collector and sends the total flow value to the control module;
the control module calculates a water inlet flow value corresponding to each water inlet pipeline according to the water flow proportion and the total flow value, generates a second trigger signal and sends the second trigger signal to the driving mechanism;
the second trigger signals of different driving mechanisms adjust the water flow in the corresponding water inlet pipeline.
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| CN101334189A (en) * | 2007-06-25 | 2008-12-31 | 韩红桥 | Hot water constant temperature constant-current automatic regulating apparatus |
| CN202630199U (en) * | 2012-05-29 | 2012-12-26 | 北京亚特伟达冷暖节能工程技术有限公司 | Automatic floor heating water mixing system |
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