CN115090435B - Intelligent electronic constant-temperature shower device and implementation method thereof - Google Patents
Intelligent electronic constant-temperature shower device and implementation method thereof Download PDFInfo
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- CN115090435B CN115090435B CN202210835198.XA CN202210835198A CN115090435B CN 115090435 B CN115090435 B CN 115090435B CN 202210835198 A CN202210835198 A CN 202210835198A CN 115090435 B CN115090435 B CN 115090435B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/18—Roses; Shower heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/174—Supplying heated water with desired temperature or desired range of temperature
- F24H15/175—Supplying heated water with desired temperature or desired range of temperature where the difference between the measured temperature and a set temperature is kept under a predetermined value
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/305—Control of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
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Abstract
The invention discloses an intelligent electronic constant-temperature shower device and an implementation method thereof, wherein the device consists of a hot water inlet pipe, a cold water inlet pipe, a hot water check valve, a cold water check valve, a hot water temperature sensor, a cold water temperature sensor, a hot water flow electric control valve, a cold and hot mixed water pipeline, a cold and hot mixed water flow sensor, a tap switch electric control valve, a tap, a top shower switch electric control valve, a top shower, a hand shower switch electric control valve, a hand shower, a spray gun switch electric control valve, a spray gun, a control unit and an operation panel, and can measure the flow and the temperature of cold water, hot water and cold and mixed water in real time, and realize the electronic constant-temperature shower by accurately controlling the cold water flow electric control valve and the hot water flow electric control valve, thereby solving the problems of pressure loss and easy blockage of the existing constant-temperature shower, and having the characteristics of accurate control, safety and reliability, obvious promotion of using effect, and convenience for large-scale production and popularization and application.
Description
Technical Field
The invention belongs to the technical field of bathroom accessories, relates to an electronic constant-temperature shower head, and in particular relates to an intelligent electronic constant-temperature shower head device and an implementation method thereof.
Background
Along with the improvement of living standard, the requirements of people on the shower device are higher and higher, the temperature regulation of the shower head is a very troublesome matter in the shower process, the traditional shower head is not subjected to constant temperature control, and the temperature regulation is delayed due to the fact that a water pipe is connected between the shower head and the switch, so that the time and the times for regulating the temperature of a user are increased on one hand; on the other hand, because the water pressure is unstable, the phenomenon of sudden cold and sudden heat of the water temperature is easy to occur, great inconvenience is caused to a user, and potential safety hazards are brought. The existing constant-temperature shower device adopts a constant-temperature valve core to realize temperature control, the basic principle is that the water inlet proportion of cold water and hot water is regulated by the heat expansion and cold contraction principle of a thermosensitive element in the valve core, so that the water outlet temperature is kept at a set temperature value and is not influenced by the change of the temperature of the hot water, the increase or decrease of the water consumption or the change of the water pressure, but the phenomenon that impurities enter the constant-temperature valve core when the water quality is poor is found in the use process, the constant-temperature valve core is easy to cause blockage, the temperature cannot be regulated, meanwhile, the shower habit of a plurality of users cannot be stored, and the shower device is convenient for users to use.
Accordingly, the prior art is subject to improvement and development.
Disclosure of Invention
The invention aims to solve the defects of the prior art, and provides an intelligent electronic constant-temperature shower device and an implementation method thereof, so that the problems of pressure loss, easy blockage and the like of a common constant-temperature shower can be solved, and the purposes of accurately controlling the water temperature and the flow of the shower can be achieved, so that the use effect of a user is improved.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the invention relates to an intelligent electronic constant temperature shower device, which is characterized by comprising: the device comprises a hot water inlet pipe, a cold water inlet pipe, a hot water check valve, a cold water check valve, a hot water temperature sensor, a cold water temperature sensor, a hot water flow electric control valve, a cold water flow sensor, a cold and hot mixed water pipeline, a cold and hot mixed water flow sensor, a cold and hot mixed water temperature sensor, a tap switch electric control valve, a tap, a top shower switch electric control valve, a top shower, a hand shower switch electric control valve, a hand shower, a spray gun switch electric control valve, a spray gun, a control unit and an operation panel;
the hot water inlet pipe is connected with the hot water check valve, the hot water temperature sensor and the hot water flow electric control valve in series and then is communicated with the cold and hot mixed water pipeline;
the cold water inlet pipe is connected with the cold water check valve, the cold water temperature sensor, the cold water flow electric control valve and the cold water flow sensor in series and then communicated with the cold and hot mixed water pipeline;
the cold and hot mixed water flow sensor and the cold and hot mixed water temperature sensor are connected in series on the cold and hot mixed water pipeline and then are respectively communicated with a tap switch electric control valve of a tap, a top shower switch electric control valve of a top shower, a hand shower switch electric control valve of a hand shower and a spray gun shower switch electric control valve of a spray gun;
the control unit respectively collects the actual temperature of hot water, the actual temperature of cold water and the actual temperature of mixed water through the hot water temperature sensor, the cold water temperature sensor and the cold and hot mixed water temperature sensor, respectively collects and calculates hot water flow, cold water flow and mixed water flow through the cold water flow sensor and the cold and hot mixed water flow sensor, and controls the opening and closing angles and the proportion of the hot water flow electric control valve and the cold water flow electric control valve to achieve the set water temperature and flow.
The invention relates to a control method based on an intelligent electronic constant temperature shower device, which is characterized in that the maximum flow of mixed water is recorded as X max The temperature of the mixed water is set to be T set The method comprises the steps of carrying out a first treatment on the surface of the The proportion of the set mixed water flow is n percent, n is more than 0 and less than or equal to 100, and the set mixed water flow is S mix ＝n％×X max The actual flow of the mixed water is X mix The actual flow of the hot water is X hot The actual flow of cold water is X cold The actual temperature of the hot water is T hot The actual temperature of the cold water is T cold And the actual temperature of the mixed water is T mix Delta t is the delay time from the flow rate of the flow rate changing electric control valve to the water temperature change detected by the temperature sensor; let T be hot ≥T cold The method comprises the steps of carrying out a first treatment on the surface of the Defining a water flow regulation correction coefficient as alpha and an initial value of alpha=1, wherein the intelligent control method comprises the following steps:
step 1: the electric control valve for the flow of the hot water is opened from closed to fully opened, and simultaneously, the temperature T of the hot water is continuously sampled in real time hot Temperature T of cold water cold And a mixing water temperature T mix Up to T mix ≥T set Or T hot Stabilizing until the mixture is stable;
step 2: if T set ≤T cold Closing the hot water flow electric control valve and beating the cold water flow electric control valve to the set mixed water flow S mix Or fully opening, and turning to the step 2; if T set ≥T hot Closing the cold water flow electric control valve and beating the hot water flow electric control valve to the set mixed water flow S mix Or fully opening, and turning to the step 2;
step 3: calculating the cold-hot water proportion K 1 ＝α×(T set －T cold )/(T hot －T cold ) According to X hot /(X hot +X cold )＝K 1 And (3) adjusting the hot water flow electric control valve and the cold water flow electric control valve to X mix ≈S mix Or one of the valves is fully open, noting that the intermediate variable k=k 1 ；
Step 4: record D max Fine-tuning the upper limit value for temperature error, D min Fine-tuning a lower limit value for the temperature error; every delay time Deltat, calculating temperature deviation Deltat= |T set －T mix I, and sequentially perform:
step4.1: if the temperature deviates from D min ≤△T≤D max Calculating the ratio K of the two cold water and the hot water 1 ＝α×(T set －T cold )/(T hot －T cold ) And K 2 ＝α×(T mix －T cold )/(T hot －T cold ) The ratio difference Δk=k 1 －K 2 K is adjusted to K+ [ delta ] K;
step4.2: according to X hot /(X hot +X cold ) In the relation of K, the hot water flow electric control valve and the cold water flow electric control valve are adjusted to X mix ≈S mix Or one of the valves is fully open;
step4.3: if the temperature deviation DeltaT < D min For a certain period of time, then the update α=k× (T hot －T cold )/(T set －T cold )；
Step4.4: if the temperature deviation DeltaT > D max And (5) turning to step2.
The control method based on the intelligent electronic constant temperature shower apparatus is characterized in that the clearance value of the positive and negative rotation of the flow electric control valve is calculated according to the following steps:
step A: setting the maximum opening and closing angle of the flow electric control valve as P, and recording any ith opening and closing angle in m+1 opening and closing angles of the flow electric control valve as theta (i) =P× (i/m) x 100%, wherein i=0, 1, … … and m;
for i=0, 1, … … and m, sequentially opening the flow electric control valve to turn to an opening and closing angle theta (i), and measuring the flow value after the water flow is stable; then, stepping the stepping motor of the flow electric control valve in the opposite direction of the flow to theta (i) according to a certain time, and recording the rotation step number N (i) of the stepping motor corresponding to the minimum change of the flow, wherein N (i) is a corresponding clearance value of the flow electric control valve under the opening and closing angle theta (i);
and (B) step (B): and if the opening angle theta (i-1) is more than or equal to theta (i) and less than or equal to theta (i), the clearance value G (theta) =N (i-1) + (theta-theta (i-1))/(P× (100/m)%) × (N (i) -N (i-1)) corresponding to the opening angle theta.
The invention relates to a control system of an intelligent electronic constant temperature shower apparatus, which is characterized by comprising: the device comprises a processor, a display module, a key module, a temperature and flow sensor module, a flow valve control module and a switch valve control module;
the key module is used for setting water temperature, flow and water outlet modes;
the switch valve control module is used for controlling water outlet and water cut-off of the faucet, the top shower, the hand-held shower and the spray gun by rotating the stepping motor to adjust the opening and closing of the valve according to the set water outlet mode;
the temperature and flow sensor module is used for acquiring water temperature and flow;
the processor is used for the control method;
the flow valve control module adjusts the opening and closing angle of the valve by rotating the stepping motor according to the control method of the processor, and controls the flow of hot water and cold water so as to accurately reach the set water temperature and flow;
the display module is used for displaying the set water temperature and flow, the actual water temperature and flow and the water outlet state.
Compared with the prior art, the invention has the beneficial effects that:
1. the intelligent electronic constant-temperature shower device provided by the invention measures the flow and the temperature of cold water and hot water in real time, dynamically adjusts the valve control flow, and can quickly reach the temperature and the flow set by a user by using the intelligent electronic constant-temperature shower device control method so as to realize accurate constant-temperature control of the shower.
2. The intelligent electronic constant-temperature shower device provided by the invention utilizes the mechanical valve and the stepping motor to form the electric control flow valve, does not lose water pressure, and solves the problems of water pressure loss and easy blockage of the common mechanical constant-temperature shower.
3. According to the intelligent electronic constant-temperature shower device, in the regulation and control stage of the initial failure to reach the set temperature, the control strategy of water outlet of the water tap at the bottom is adopted, so that potential safety hazards caused by too high water temperature and uncomfortable feeling of supercooling of cold water are reduced, and in the use stage, the intelligent electronic constant-temperature shower device control method is used for rapidly sampling and controlling at high speed, and the flow electric control valve is dynamically adjusted, so that the problem of shower temperature out of control caused by abrupt change of cold and hot water temperature is solved.
4. The intelligent electronic constant-temperature shower head device provided by the invention can have a personalized customization function, can set and store shower preferences of different users, is convenient for users to use, can set different temperatures and flows for different water outlet devices of different users, and improves the convenience of users.
5. The intelligent electronic constant temperature shower head device provided by the invention mainly comprises a mechanical valve, a stepping motor, a temperature sensor, a flow sensor and the like, and compared with the existing constant temperature shower head, the intelligent electronic constant temperature shower head device has the advantages of fewer mechanical parts, relatively low accuracy requirement and convenience for mass production, popularization and application.
Drawings
FIG. 1 is a schematic diagram of the intelligent electronic constant temperature shower apparatus of the present invention;
FIG. 2 is a control schematic block diagram of the method of the present invention;
in the figure, the reference numerals comprise a 1-hot water inlet pipe, a 2-cold water inlet pipe, a 3-hot water check valve, a 4-cold water check valve, a 5-hot water temperature sensor, a 6-cold water temperature sensor, a 7-hot water flow electric control valve, an 8-cold water flow electric control valve, a 9-cold water flow sensor, a 10-cold and hot mixed water pipeline, an 11-mixed water flow sensor, a 12-mixed water temperature sensor, a 13-tap switch electric control valve, a 14-tap, a 15-top shower switch electric control valve, a 16-top shower, a 17-hand shower switch electric control valve, an 18-hand shower, a 19-spray gun switch electric control valve, a 20-spray gun, a 21-control unit and an operation panel.
Detailed Description
In this embodiment, an intelligent electronic constant temperature shower apparatus, as shown in fig. 1, includes: the hot water inlet pipe 1, the cold water inlet pipe 2, the hot water check valve 3, the cold water check valve 4, the hot water temperature sensor 5, the cold water temperature sensor 6, the hot water flow electric control valve 7, the cold water flow electric control valve 8, the cold water flow sensor 9, the cold and hot mixed water pipeline 10, the cold and hot mixed water flow sensor 11, the cold and hot mixed water temperature sensor 12, the tap switch electric control valve 13, the tap 14, the top shower switch electric control valve 15, the top shower 16, the hand shower switch electric control valve 17, the hand shower 18, the spray gun switch electric control valve 19, the spray gun 20, the control unit and the operation panel 21;
the hot water inlet pipe 1 is connected with a hot water check valve 3, a hot water temperature sensor 5 and a hot water flow electric control valve 7 in series and then is communicated with a cold and hot mixed water pipeline 10;
the cold water inlet pipe 2 is connected with a cold water check valve 4, a cold water temperature sensor 6, a cold water flow electric control valve 8 and a cold water flow sensor 9 in series and then is communicated with a cold and hot mixed water pipeline 10;
the cold and hot mixed water flow sensor 11 and the cold and hot mixed water temperature sensor 12 are connected in series on the cold and hot mixed water pipeline 10 and then are respectively communicated with the tap switch electric control valve 13 of the tap 14, the top shower switch electric control valve 15 of the top shower 16, the hand-held shower switch electric control valve 17 of the hand-held shower 18 and the spray gun shower switch electric control valve 19 of the spray gun 20;
the control unit 21 respectively collects the actual temperature of hot water, the actual temperature of cold water and the actual temperature of mixed water through the hot water temperature sensor 5, the cold water temperature sensor 6 and the cold and hot mixed water temperature sensor 12, respectively collects and calculates the hot water flow, the cold water flow and the mixed water flow through the cold water flow sensor 9 and the cold and hot mixed water flow sensor 11, and controls the opening and closing angles and the proportion of the hot water flow electric control valve 7 and the cold water flow electric control valve 8 so as to achieve the set water temperature and flow.
In the embodiment, the control method of the intelligent electronic constant-temperature shower head device is based on a first law of thermodynamics, and the total value of energy in the mixing process of cold water and hot water is assumed to be kept unchanged, the flow of the cold water and the hot water is regulated through a flow electric control valve, and the specific gravity of the cold water and the hot water is changed, so that the purposes of regulating the water temperature and realizing the dynamic constant water temperature are achieved; specifically, the maximum flow rate of the mixed water is recorded as X max The temperature of the mixed water is set to be T set The method comprises the steps of carrying out a first treatment on the surface of the The proportion of the set mixed water flow is n percent, n is more than 0 and less than or equal to 100, and the set mixed water flow is S mix ＝n％×X max The actual flow of the mixed water is X mix The actual flow of the hot water is X hot The actual flow of cold water is X cold The temperature of the hot water is T hot The temperature of cold water is T cold And the temperature of the mixed water is T mix Δt is the delay time from changing the valve flow to the sensor detecting a change in water temperature. Without loss of generality assume T hot ≥T cold The method comprises the steps of carrying out a first treatment on the surface of the Defining a water flow adjustment correction coefficient alpha, and initially alpha=1, wherein the intelligent control method comprises the following steps:
step 1: the electric control valve 7 for the flow of the hot water is opened from the closed state to the fully opened state, and simultaneously the temperature T of the hot water is continuously sampled in real time hot Temperature T of cold water cold And a mixing water temperature T mix Up to T mix ≥T set Or T hot Stabilizing;
step 2: if T set ≤T cold Closing the hot water flow electric control valve (7) and beating the cold water flow electric control valve 8 to the set flow S mix Or fully opened, step 2; if T set ≥T hot The cold water flow electric control valve (8) is closed, and the hot water flow electric control valve 7 is driven to the set flow S mix Or fully opened, step 2;
step 3: calculating the cold-hot water proportion K 1 ＝α×(T set －T cold )/(T hot －T cold ) According to X hot /(X hot +X cold )＝K 1 Is to adjust the heatWater flow electric control valve 7 and cold water flow electric control valves 8 to X mix ≈S mix Or one of the valves is fully open, noting that the intermediate variable k=k 1 ；
Step 4: record D max Fine-tuning the upper limit value for temperature error, D min Fine-tuning a lower limit value for the temperature error; every delay time Deltat, calculating temperature deviation Deltat= |T set －T mix I, and sequentially perform:
step4.1: if the temperature deviates from D min ≤△T≤D max Calculating the ratio K of the two cold water and the hot water 1 ＝α×(T set －T cold )/(T hot －T cold ) And K 2 ＝α×(T mix －T cold )/(T hot －T cold ) The ratio difference Δk=k 1 －K 2 K is adjusted to K+ [ delta ] K;
step4.2: according to X hot /(X hot +X cold ) In the relation of =k, the hot water flow rate electric control valve 7 and the cold water flow rate electric control valves 8 to X are adjusted mix ≈S mix Or one of the valves is fully open;
step4.3: if the temperature deviation DeltaT < D min For a certain period of time, then the update α=k× (T hot －T cold )/(T set －T cold )；
Step4.4: if the temperature deviation DeltaT > D max Step2 is then performed.
In this embodiment, the control method of the intelligent electronic constant temperature shower apparatus is to measure valve gap values under different valve opening and closing angles for a plurality of times, obtain the step number of the stepping motor corresponding to the valve gap value under any valve opening and closing angle in a fitting manner, and compensate the errors caused by the gaps existing in gears, valve bodies and the like and the gaps caused by the installation errors of the stepping motor and the water valve coupling, so as to realize the accurate control of the flow of the electric control valve, and specifically, the calculation steps of the positive and negative gap values of the flow electric control valve are as follows:
StepA: setting the maximum opening and closing angle of the flow electric control valve as P, and recording any ith opening and closing angle in m+1 opening and closing angles of the flow electric control valve as theta (i) =P× (i/m) x 100%, wherein i=0, 1, … … and m; for i=0, 1, … … and m, sequentially opening the flow electric control valve to turn to an opening and closing angle theta (i), and measuring the flow value after the water flow is stable; then, stepping the stepping motor of the flow electric control valve in the opposite direction of the flow to theta (i) according to a certain time, and recording the rotation step number N (i) of the stepping motor corresponding to the minimum change of the flow, wherein N (i) is a corresponding clearance value of the flow electric control valve under the opening and closing angle theta (i);
step B: and if the opening angle theta (i-1) is more than or equal to theta (i) and less than or equal to theta (i), the clearance value G (theta) =N (i-1) + (theta-theta (i-1))/(P× (100/m)%) × (N (i) -N (i-1)) corresponding to the opening angle theta.
In this embodiment, when the maximum opening and closing angle P of the flow rate electric control valve is 90 ° and m is 10 °, θ (0) =0 °, θ (1) =9 °, θ (2) =18 °, … …, θ (10) =90 °.
In this embodiment, a control system of intelligent electronic constant temperature gondola water faucet device, its characterized in that includes: a processor, a display module, a key module, a temperature and flow sensor module, a flow valve control module, and a switch valve control module, as shown in fig. 2;
the key module is provided with an operation panel 21, and mainly comprises a top shower switch key, a hand-held shower switch key, a spray gun switch key, a tap switch key, a flow reducing key, a flow increasing key, a temperature reducing key, a temperature increasing key, a confirmation key and a user selection key, which are used for setting water temperature, flow and water outlet modes; all keys in the operation panel are designed in an infrared non-contact mode, so that a user can conveniently operate the operation panel during shower, and the tap switch key, the top shower switch key, the hand-held shower switch key and the spray gun switch key respectively control water outlet and water cut-off of the tap 14, the top shower 16, the hand-held shower 18 and the spray gun 20;
the flow reducing button and the flow increasing button are respectively used for reducing the flow and increasing the flow;
the temperature lowering button and the temperature increasing button are respectively used for lowering the water temperature and increasing the water temperature;
the confirming key is used for confirming the flow and temperature setting of the user;
the user selection key is used for selecting the use number of the current user, and loading the flow and temperature preference of the corresponding user from the stored parameters;
the switch valve control module is used for controlling the water outlet and water cut-off of the faucet 14, the top shower head 16, the hand shower head 18 and the spray gun 20 by rotating the stepping motor to adjust the opening and closing of the valve according to the set water outlet mode;
the temperature and flow sensor module is used for acquiring water temperature and flow;
the processor module is used for executing an intelligent electronic constant-temperature shower head device control method to realize accurate control of shower head flow and water temperature;
the flow valve control module is used for controlling the flow of hot water and cold water by rotating the stepping motor to adjust the opening and closing angle of the valve according to the control method of the processor so as to accurately reach the set water temperature and flow;
the display module mainly comprises a user/flow information display, a temperature/using time display and a plurality of key operation/water outlet state indication lamps, and is used for displaying the set water temperature and flow, the actual water temperature and flow and the water outlet states of the faucet 14, the top shower 16, the handheld shower 18 and the spray gun 20; in the setting mode, the user/flow information display is used for displaying the currently set flow percentage value and the user number, and in the working mode, the user number of the current shower and the flow percentage value of the current shower are dynamically displayed;
in the set mode, the temperature/time of use display is mainly used for displaying the current user-set temperature value, different temperatures can be set for the faucet 14, the top shower 16, the handheld shower 18 and the spray gun 20, and in the working mode, the current shower temperature and the user use duration are dynamically displayed;
each key is provided with a key operation indicator light which is used for prompting whether the operation of the user is successful or not; the panel is provided with 4 water outlet state indicating lamps which are respectively used for indicating the water outlet states of the faucet 14, the top shower head 16, the hand shower head 18 and the spray gun 20, the lamps are turned on to discharge water, and the lamps are turned off to stop water;
in summary, the intelligent electronic constant-temperature shower head device and the control method can measure the flow and the temperature of cold and hot water in real time, realize the electronic constant-temperature shower head through the accurate control of the cold and hot water flow electric control valve, have accurate control, are safe and reliable, solve the problems of water pressure loss and easy blockage of the traditional constant-temperature shower head, have the personalized customization function, greatly improve the experience of users, and have low cost, simple process and convenient popularization and application.
Claims (3)
1. A control method of an intelligent electronic constant temperature shower apparatus, the intelligent electronic constant temperature shower apparatus comprising: the hot water inlet pipe (1), the cold water inlet pipe (2), the hot water check valve (3), the cold water check valve (4), the hot water temperature sensor (5), the cold water temperature sensor (6), the hot water flow electric control valve (7), the cold water flow electric control valve (8), the cold water flow sensor (9), the cold and hot mixed water pipeline (10), the cold and hot mixed water flow sensor (11), the cold and hot mixed water temperature sensor (12), the tap switch electric control valve (13), the tap (14), the top shower switch electric control valve (15), the top shower (16), the hand shower switch electric control valve (17), the hand shower (18), the spray gun switch electric control valve (19), the spray gun (20), the control unit and the operation panel (21);
the hot water inlet pipe (1) is connected with the hot water check valve (3), the hot water temperature sensor (5) and the hot water flow electric control valve (7) in series and then is communicated with the cold and hot mixed water pipeline (10);
the cold water inlet pipe (2) is connected with the cold water check valve (4), the cold water temperature sensor (6), the cold water flow electric control valve (8) and the cold water flow sensor (9) in series and then is communicated with the cold and hot mixed water pipeline (10);
the cold and hot mixed water flow sensor (11) and the cold and hot mixed water temperature sensor (12) are connected in series on the cold and hot mixed water pipeline (10) and then are respectively communicated with a tap switch electric control valve (13) of the tap (14), a top shower switch electric control valve (15) of the top shower (16), a hand-held shower switch electric control valve (17) of the hand-held shower (18) and a spray gun switch electric control valve (19) of the spray gun (20);
the control unit respectively collects the actual temperature of hot water, the actual temperature of cold water and the actual temperature of mixed water through a hot water temperature sensor (5), a cold water temperature sensor (6) and a cold and hot mixed water temperature sensor (12), respectively collects and calculates the hot water flow, the cold water flow and the mixed water flow through a cold water flow sensor (9) and a cold and hot mixed water flow sensor (11), and controls the opening and closing angles and the proportions of a hot water flow electric control valve (7) and a cold water flow electric control valve (8) to achieve the set water temperature and flow; it is characterized in that the method comprises the steps of,
the maximum flow of the mixed water is recorded as X max The temperature of the mixed water is set to be T set The method comprises the steps of carrying out a first treatment on the surface of the The proportion of the set mixed water flow is n percent, n is more than 0 and less than or equal to 100, and the set mixed water flow is S mix =n%×X max The actual flow of the mixed water is X mix The actual flow of the hot water is X hot The actual flow of cold water is X cold The actual temperature of the hot water is T hot The actual temperature of the cold water is T cold And the actual temperature of the mixed water is T mix Delta t is the delay time from the flow rate of the flow rate changing electric control valve to the water temperature change detected by the temperature sensor; let T be hot ≥T cold The method comprises the steps of carrying out a first treatment on the surface of the Defining a water flow adjustment correction coefficient as alpha and an initial value of alpha=1, wherein the control method comprises the following steps:
step 1: the electric control valve (7) for the flow of the hot water is opened from the closed state to the fully opened state, and simultaneously, the temperature T of the hot water is continuously sampled in real time hot Temperature T of cold water cold And a mixing water temperature T mix Up to T mix ≥T set Or T hot Stabilizing until the mixture is stable;
step 2: if T set ≤T cold Closing the hot water flow electric control valve (7) and driving the cold water flow electric control valve (8) to the set mixed water flow S mix Or fully opening, and turning to the step 2; if T set ≥T hot Closing the cold water flow electric control valve (8) and beating the hot water flow electric control valve (7) to the set mixed water flow S mix Or fully opening, and turning to the step 2;
step 3: calculating the cold-hot water proportion K 1 =α×(T set －T cold )／(T hot －T cold ) According to X hot ／(X hot ＋X cold )=K 1 Is used for adjusting the relation between the hot water flow electric control valve (7) and the cold water flow electric control valve (8) to X mix ≈S mix Or one of the valves is fully open, noting that the intermediate variable k=k 1 ；
Step 4: record D max Fine-tuning the upper limit value for temperature error, D min Fine-tuning a lower limit value for the temperature error; every delay time Deltat, calculating temperature deviation Deltat= |T set －T mix I, and sequentially perform:
step4.1: if the temperature deviates from D min ≤△T≤D max Calculating the ratio K of the two cold water and the hot water 1 =α×(T set －T cold )／(T hot －T cold ) And K 2 =α×(T mix －T cold )／(T hot －T cold ) The ratio difference Δk=k 1 －K 2 K is adjusted to K+ [ delta ] K;
step4.2: according to X hot ／(X hot ＋X cold ) In the relation of K, the hot water flow electric control valve (7) and the cold water flow electric control valves (8) to X are adjusted mix ≈S mix Or one of the valves is fully open;
step4.3: if the temperature deviation DeltaT < D min For a certain period of time, then the update α=k× (T hot －T cold )／(T set －T cold )；
Step4.4: if the temperature deviation DeltaT > D max And (5) turning to step2.
2. A control method of an intelligent electronic constant temperature shower apparatus based on claim 1, which is characterized by calculating the clearance value of the forward and reverse rotation of a flow electric control valve according to the following steps:
step A: setting the maximum opening and closing angle of the flow electric control valve as P, and recording any ith opening and closing angle in m+1 opening and closing angles of the flow electric control valve as theta i = P×(i/m)×100%，i=0，1，……，m；
For i=0, 1, … … and m, the flow electric control valve is sequentially opened to be turned to an opening and closing angle theta i After the water flow is stable, measuring a flow value; then turn to theta at a certain time i Step motor for step-by-step rotating flow electric control valve in opposite direction, recording corresponding to minimum change of flowThe number of rotation steps N of the stepping motor i Then N i Namely, the opening and closing angle theta of the flow electric control valve i The corresponding gap value is down;
and (B) step (B): any opening and closing angle theta of the flow control valve if theta i-1 ≤θ≤θ i The gap value G corresponding to the opening and closing angle θ θ =N i-1 ＋(θ－θ i-1 )／(P×(100/m)%)×(N i －N i-1 )。
3. Control system of intelligent electronic constant temperature gondola water faucet device, characterized by, include: the device comprises a processor, a display module, a key module, a temperature and flow sensor module, a flow valve control module and a switch valve control module;
the key module is used for setting water temperature, flow and water outlet modes;
the switch valve control module is used for controlling the water outlet and water stopping of the faucet (14), the top shower head (16), the hand-held shower head (18) and the spray gun (20) by rotating the stepping motor to adjust the opening and closing of the valve according to the set water outlet mode;
the temperature and flow sensor module is used for acquiring water temperature and flow;
the processor is configured to execute the control method of claim 1;
the flow valve control module adjusts the opening and closing angle of the valve by rotating the stepping motor according to the control method of the processor, and controls the flow of hot water and cold water so as to accurately reach the set water temperature and flow;
the display module is used for displaying the set water temperature and flow, the actual water temperature and flow and the water outlet state.
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| CN108799610A (en) * | 2017-04-28 | 2018-11-13 | 青岛经济技术开发区海尔热水器有限公司 | Constant-temperature constant-flow water outlet control method and constant-temperature constant-flow valve |
| CN211599629U (en) * | 2019-11-25 | 2020-09-29 | 鹤山市德盈卫浴科技实业有限公司 | Four-function shower with novel structure |
| CN216358519U (en) * | 2021-03-08 | 2022-04-22 | 佛山缝叶鸟环境科技有限公司 | Shower system |
| CN114279106B (en) * | 2021-12-17 | 2022-08-30 | 珠海格力电器股份有限公司 | Four-pipe system water flow adjusting method and device, four-pipe system and air conditioner |
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