CN109724261B - Water-saving intelligent hot water regulator and control method thereof - Google Patents
Water-saving intelligent hot water regulator and control method thereof Download PDFInfo
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- CN109724261B CN109724261B CN201811610879.6A CN201811610879A CN109724261B CN 109724261 B CN109724261 B CN 109724261B CN 201811610879 A CN201811610879 A CN 201811610879A CN 109724261 B CN109724261 B CN 109724261B
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Abstract
The invention provides a water-saving intelligent hot water regulator and a control method thereof.A mounting box of the regulator is provided with a hot water pipe orifice, a cold water pipe orifice, a water outlet pipe orifice and a control circuit interface, the hot water pipe orifice is connected with a water inlet end pipeline of a three-way valve through a booster pump, a first water outlet end of the three-way valve is communicated with a cold water pipe orifice pipeline through a one-way valve, a second water outlet end of the three-way valve is connected with a water mixing cavity, a backflow flow regulating valve is arranged on a backflow pipe of the booster pump, the cold water pipe orifice is also connected into a water mixing cavity through the cold water flow regulating valve, the hot water pipe orifice is provided with a first water temperature detector, the water mixing cavity is provided with a second water temperature detector, and a circuit control panel is arranged in the. The effect is as follows: the external interface is simple, simple to operate is applicable to current gas heater's pipeline layout mode, can directly replace manual formula and mix the water valve, can realize the recovery of pipe network waste water, can adjust at the temperature of certain extent.
Description
Technical Field
The invention relates to hot water regulating equipment, in particular to a water-saving intelligent hot water regulator and a control method thereof.
Background
The water heater has been widely popularized as a domestic electric appliance commonly used by people, the existing water heaters are generally divided into an electric water heater and a gas water heater, and for the gas water heater, in view of the high requirement of gas pipeline laying on safety, most users hang the gas water heater near a kitchen and supply hot water to a plurality of water using points by using one water heater, as shown in fig. 1, when a house is decorated, a hot water pipe and a cold water pipe are arranged in a room, and a water mixing valve is arranged at the water using points, so that the supply of the hot water and the cold water is met.
However, based on the existing house layout, a certain distance is often reserved between the kitchens and the toilets of some families, and the shortest path is not always taken in the pipeline layout, so that residual water is often accumulated in the pipeline between the water heater and the water consumption point, and when hot water is needed to be used each time, new hot water arrives after the residual water in the pipeline is drained, thereby causing water source waste.
In view of the above drawbacks, some proposals have been made to recover the cold water remaining in the pipeline by providing a cold water recovery device, such as a cold water saving device of a water heater disclosed in chinese patent 201610004179.7 and an invalid cold water recovery and utilization system of a water heater disclosed in chinese patent 201510213868.4, but after careful analysis, it is found that various existing improved devices often need to change an indoor pipe network system, the modification cost is high, various systems are difficult to produce, various additionally-arranged components occupy part of the indoor space, cold water and hot water are often supplied separately, and the water temperature adjustment is also difficult.
Disclosure of Invention
Aiming at the defects in the prior art, the invention firstly provides the water-saving intelligent hot water regulator, which conforms to the installation standard of the existing water mixing valve and can directly replace the common manual water mixing valve on the premise of not changing the existing decoration pipe network, thereby realizing the recycling of the residual water of the pipe network, automatically regulating the target temperature and simultaneously realizing the dual-mode supply of cold water and hot water.
In order to achieve the purpose, the invention adopts the following specific technical scheme:
the utility model provides a water-saving intelligent hot water regulator, includes mounting box (1), its key lies in: the installation box (1) is provided with a hot water pipe orifice, a cold water pipe orifice, a water outlet pipe orifice and a control line interface, the hot water pipe orifice is connected with a water inlet end pipeline of a three-way valve (3) through a booster pump (2), a first water outlet end of the three-way valve (3) is communicated with the cold water pipe orifice through a one-way valve (4), a second water outlet end of the three-way valve (3) is connected with an input end pipeline of a water mixing cavity (6), a return pipe is further arranged between the water inlet end and the water outlet end of the booster pump (2), a return flow regulating valve (5) is arranged on the return pipe, the cold water pipe orifice is also connected into another input end pipe orifice of the water mixing cavity (6) through a cold water flow regulating valve (7), the output end of the water mixing cavity (6) is communicated with the water outlet pipeline, a first water temperature detector (8) is arranged on a connecting pipeline between the hot water pipe orifice and the three, mix and be provided with second temperature detector (9) on water cavity (6) set up circuit control board (10) in mounting box (1), circuit control board (10) with booster pump (2), three-way valve (3), backward flow control valve (5), cold water flow control valve (7), first temperature detector (8) and second temperature detector (9) electric connection, circuit control board (10) still pass through control scheme interface and control panel (11) electric connection.
Optionally, the control panel (11) comprises a display module and a control instruction input module.
Optionally, the control instruction input module inputs the target water temperature information by adopting a keyboard input mode or a knob switch input mode.
Optionally, the control panel (11) is provided with a biological information acquisition module, and the control panel (11) determines the water using object according to the information acquired by the biological information acquisition module, and then controls the water supply mode of the hot water regulator according to a pre-trained control mode of the water using object.
Optionally, a box body of the installation box (1) is square, the hot water pipe opening and the cold water pipe opening are located below the installation box (1), and the water outlet pipe opening is located above the installation box (1).
Optionally, divide into circuit installation cavity and water route installation cavity through baffle (101) in mounting box (1), circuit control panel (10) set up in the circuit installation cavity, booster pump (2), three-way valve (3), check valve (4), backward flow control valve (5), muddy water chamber (6), cold water flow control valve (7), first temperature detector (8) and second temperature detector (9) all set up in the water route installation cavity, and the control scheme between circuit installation cavity and the water route installation cavity passes through the water proofness connector on baffle (101) and connects.
Based on the device, the invention also provides a control method of the water-saving intelligent hot water regulator, which comprises the following steps:
s1: initializing a system, keeping a booster pump (2), a backflow flow regulating valve (5) and a cold water flow regulating valve (7) closed, connecting a three-way valve (3) with a first water outlet end, and determining a temperature deviation threshold value delta T;
s2: inputting a starting instruction and judging a water supply mode;
when the mode is the hot water mode, the steps are executed according to S301-S304;
s301: starting a booster pump (2);
s302: acquiring the hot water temperature T1 detected by the first water temperature detector (8), judging whether the current hot water temperature T1 is greater than the target water temperature T, if T1 is greater than or equal to T, controlling the three-way valve (3) to be communicated with a second water outlet end, and entering S303; otherwise, the three-way valve (3) maintains the state of connecting the first water outlet end;
s303: acquiring the hot water temperature T2 detected by a second water temperature detector (9), and enabling the water temperature in the water mixing cavity (6) to meet | T2-T | ≦ Δ T by adjusting the backflow flow regulating valve (5) and the cold water flow regulating valve (7);
when the cold water mode is adopted, the cold water flow regulating valve (7) is directly regulated to reach a preset opening degree;
s3: and inputting a closing instruction, and returning the system to an initialization state.
Optionally, the target water temperature T is directly input or adjusted through a keyboard module or a knob switch module in the control panel (11).
Optionally, a biological information acquisition module is arranged in the control panel (11), and the control panel (11) determines a water using object according to information acquired by the biological information acquisition module, and then controls a water supply mode of the hot water regulator according to a pre-trained control mode of the water using object, including a target water temperature T and water supply time.
Alternatively, in step S303, when | T2-T | >. Δ T;
firstly, adjusting the opening degree of the cold water flow adjusting valve (7) between 0 and 100 percent according to a median progressive method;
if T2-T & ltDELTA & gt, adjusting the opening degree of the cold water flow regulating valve (7) in a mode of increasing the opening degree in a median progressive method; if T-T2> delta T, adjusting the opening degree of the cold water flow regulating valve (7) according to a median progressive method in a mode of decreasing the opening degree;
when the opening degree of the cold water flow regulating valve (7) is adjusted to be 100%, if T2-T & ltDELTA & gt is still met;
gradually increasing the opening degree of the backflow flow regulating valve (5) according to preset steps until the water temperature in the water mixing cavity (6) meets | T2-T | ≦ Δ T.
The invention has the beneficial effects that:
the external interface is simple, simple to operate is applicable to current gas heater's pipeline layout mode, can directly replace the manual formula and mix the water valve, and through the control of booster pump and three-way valve, the recovery of pipe network waste water can be realized, through the aperture of adjusting backward flow governing valve and cold water flow governing valve, can realize the temperature regulation in the certain limit, satisfies the use of different scenes or different objects.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a diagram of a conventional gas water heater with a pipeline connection;
fig. 2 is a schematic view of an installation structure of embodiment 1 of the present invention;
fig. 3 is a schematic view of an installation structure of embodiment 2 of the present invention; (ii) a
FIG. 4 is a state diagram of the use of FIG. 2;
FIG. 5 is a control flow chart of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
Specific example 1:
as shown in fig. 2, the embodiment discloses a water-saving intelligent hot water regulator, including a square mounting box 1, mounting box 1 has divided into circuit installation cavity and water route installation cavity through baffle 101, be provided with hot water pipe mouth on mounting box 1, cold water pipe mouth, water outlet pipe mouth and control line interface, wherein hot water pipe mouth and cold water pipe mouth are located the below of mounting box 1, water outlet pipe mouth is located the top of mounting box 1, control line interface is located the left side of mounting box, be provided with booster pump 2 in the water route installation cavity, three-way valve 3, check valve 4, backward flow governing valve 5, mix water cavity 6, cold water flow governing valve 7, first temperature detector 8 and second temperature detector 9, be provided with circuit control board 10 in the circuit installation cavity.
The hot water pipe orifice is connected with a water inlet end pipeline of a three-way valve 3 through a booster pump 2, a first water outlet end of the three-way valve 3 is communicated with a cold water pipe orifice pipeline through a one-way valve 4, a second water outlet end of the three-way valve 3 is connected with one input end pipeline of a water mixing cavity 6, a return pipe is further arranged between the water inlet end and the water outlet end of the booster pump 2, a return flow regulating valve 5 is arranged on the return pipe, the cold water pipe orifice is connected into the other input end of the water mixing cavity 6 through a cold water flow regulating valve 7, the output end of the water mixing cavity 6 is communicated with the water outlet pipe orifice pipeline, a first water temperature detector 8 is arranged on a connecting pipeline between the hot water pipe orifice and the three-way valve 3, and a second water temperature detector 9 is arranged on the;
As can be seen from fig. 2, the control panel 11 in this embodiment includes a display module and a control instruction input module, where the control instruction input module adopts keyboard input, and by configuring a function module on a key, a start instruction or a close instruction may be input, and a number may be input to directly determine a target temperature subscribed by a user, or temperature adjustment may be implemented by a "+" - "key.
Specific example 2:
as shown in fig. 3, the difference from embodiment 1 lies in the implementation manner of the control panel 11, and as can be seen from fig. 3, the present embodiment adopts a knob switch input manner to input the target water temperature information.
In order to improve the intelligent degree of the product, in a specific implementation, a biological information acquisition module may be disposed on the control panel 11, and the control panel 11 determines the water-using object according to the information acquired by the biological information acquisition module, and then controls the water supply mode of the hot water regulator according to a pre-trained control mode of the water-using object. The biological information acquisition module can adopt a fingerprint identification module, a voice identification module, a face identification module and the like, the water consumption habits of users can be automatically matched by identifying different objects, the water consumption data of the users, such as information of common water temperature, water consumption time and the like, are prestored in the system, and hot water intelligent adjustment is realized.
Taking specific embodiment 1 as an example, when in application, the connection can be performed in a manner shown in fig. 4, a tap water supply pipe enters a house through a house-entering valve, hot water output by the gas water heater is connected with a hot water pipe port, a tap water cold water pipe is connected with a cold water port, and a water outlet pipe port is connected with a nozzle of a water consumption point, and the specific control includes the following steps:
s1: initializing a system, keeping the booster pump 2, the backflow flow regulating valve 5 and the cold water flow regulating valve 7 closed, connecting the three-way valve 3 with a first water outlet end, and determining a temperature deviation threshold value delta T;
s2: inputting a starting instruction and judging a water supply mode;
when the mode is the hot water mode, the steps are executed according to S301-S304;
s301: starting a booster pump 2;
s302: acquiring the hot water temperature T1 detected by the first water temperature detector 8, judging whether the current hot water temperature T1 is greater than the target water temperature T, if T1 is greater than or equal to T, controlling the three-way valve 3 to be communicated with a second water outlet end, and entering S303; otherwise, the three-way valve 3 maintains the state of connecting the first water outlet end;
s303: acquiring the hot water temperature T2 detected by a second water temperature detector 9, and adjusting the backflow flow regulating valve 5 and the cold water flow regulating valve 7 to enable the water temperature in the water mixing cavity 6 to meet the absolute value of T2-T | ≦ Δ T;
when the cold water mode is adopted, the cold water flow regulating valve 7 is directly regulated to reach a preset opening degree;
s3: and inputting a closing instruction, and returning the system to an initialization state.
In step S303, when | T2-T | >. Δ T;
firstly, adjusting the opening degree of the cold water flow adjusting valve 7 by a median progressive method between 0 and 100 percent;
if T2-T & ltDELTA & gt, adjusting the opening degree of the cold water flow regulating valve 7 in a mode of increasing the opening degree in a median progressive method; if T-T2> delta T, adjusting the opening degree of the cold water flow regulating valve 7 according to a median progressive method in a mode of decreasing the opening degree;
when the opening degree of the cold water flow regulating valve 7 is adjusted to be 100%, if T2-T & ltDELTA & gt is still met;
gradually increasing the opening degree of the backflow flow regulating valve 5 according to preset steps until the water temperature in the water mixing cavity 6 meets | T2-T | ≦ Δ T.
Dividing the opening range of 0-100% into 9 grades according to a median progressive method, wherein the backflow flow regulating valve 5 and the cold water flow regulating valve 7 respectively have 9 openings of 0, 12.5%, 25%, 37.5%, 50%, 62.5%, 75%, 87.5% and 100%, the default water temperature of the water heater output by a system can be larger than the preset target temperature through limiting the preset target temperature range, and if the hot water temperature T1 detected by the first water temperature detector 8 is smaller than the preset target temperature T, the residual water in a pipe network is considered not to flow out, so that the three-way valve 3 maintains the state of connecting the first water outlet end, and under the action of the gain pump 2, the water pressure can be ensured to be larger than the water pressure of a tap water pipe, so that the cold water flows back to the water inlet end of the water heater, and the waste of a water source is reduced;
when the absolute value of the absolute; if T2-T & ltDELTA & gt indicates that the current water temperature is too high, the cold water flow regulating valve 7 needs to be opened, the water temperature is reduced by supplying cold water, for the adjustment of a median progressive method, 50% of opening degree is selected firstly in the opening degree range of 0-100%, the change condition of the water temperature is observed, if T2-T & ltDELTA & gt indicates that the cold water amount needs to be increased continuously, 75% of opening degree is selected between 50-100%, if T2-T & ltDELTA & gt still exists, 87.5% is selected, the cold water amount does not fall, and finally 100% is selected; assuming that the opening degree of 75%, T-T2 >. DELTA.T indicates excessive supply of cold water, the opening degree needs to be decreased, and 62.5% is selected from 50% to 75%.
If the water temperature in the mixing chamber 6 is 100%, the cold water supply is indicated to reach the maximum opening degree, and if the water temperature is still in a state of T2-T & ltDELTA & gt, the hot water temperature is indicated to be higher, the supply amount is over-sufficient, so the opening degree of the backflow flow regulating valve 5 is gradually increased according to preset steps, partial hot water flows back through the backflow pipe, the hot water pressure and the water yield are reduced, and finally the water temperature in the mixing chamber 6 is ensured to meet | T2-T & ltDELTA & gt.
Through the pre-debugging of the system and the determination of the flow valve adjusting step length according to the delta T, the opening condition which meets the target temperature can be found finally through the adjustment of the two groups of flow valves within the range of 0-100%.
For domestic water, the requirement on the accuracy of water temperature is not high, so that the delta T usually has a large value, such as 5 ℃, and a cold water flow regulating valve is controlled by a median progressive method, so that the complexity of an algorithm can be reduced, and the regulation and control time can be shortened.
In summary, the water-saving intelligent hot water regulator and the control method thereof provided by the embodiment can be effectively applied to the existing water supply system of the gas water heater, can realize intelligent upgrade of the hot water supply system under the condition of not changing a decoration pipe network, have simple interfaces, are convenient to install, can realize recovery of residual water of the pipe network and regulation of the temperature of hot water, can realize dual-mode supply of hot water and cold water, meet the existing home decoration style, can realize industrial production, and have better application prospects.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (8)
1. Water-saving intelligent hot water regulator, including mounting box (1), its characterized in that: the installation box (1) is provided with a hot water pipe orifice, a cold water pipe orifice, a water outlet pipe orifice and a control line interface, the hot water pipe orifice is connected with a water inlet end pipeline of a three-way valve (3) through a booster pump (2), a first water outlet end of the three-way valve (3) is communicated with the cold water pipe orifice through a one-way valve (4), a second water outlet end of the three-way valve (3) is connected with an input end pipeline of a water mixing cavity (6), a return pipe is further arranged between the water inlet end and the water outlet end of the booster pump (2), a return flow regulating valve (5) is arranged on the return pipe, the cold water pipe orifice is also connected into another input end pipe orifice of the water mixing cavity (6) through a cold water flow regulating valve (7), the output end of the water mixing cavity (6) is communicated with the water outlet pipeline, a first water temperature detector (8) is arranged on a connecting pipeline between the hot water pipe orifice and the three, a second water temperature detector (9) is arranged on the water mixing cavity (6), a circuit control board (10) is arranged in the mounting box (1), the circuit control board (10) is electrically connected with the booster pump (2), the three-way valve (3), the backflow flow regulating valve (5), the cold water flow regulating valve (7), the first water temperature detector (8) and the second water temperature detector (9), and the circuit control board (10) is also electrically connected with a control panel (11) through the control line interface; the control panel (11) is provided with a biological information acquisition module, the control panel (11) judges a water using object according to information acquired by the biological information acquisition module, and then controls a water supply mode of the hot water regulator according to a pre-trained control mode of the water using object;
the circuit control board (10) acquires the hot water temperature T1 detected by the first water temperature detector (8), judges whether the current hot water temperature T1 is greater than the target water temperature T, and controls the three-way valve (3) to be communicated with a second water outlet end if T1 is greater than or equal to T; otherwise, the three-way valve (3) maintains the state of connecting the first water outlet end;
after the three-way valve (3) is communicated with the second water outlet end, the circuit control board (10) obtains the hot water temperature T2 detected by the second water temperature detector (9), and the water temperature in the water mixing cavity (6) meets | T2-T | less than or equal to Δ T by adjusting the backflow flow regulating valve (5) and the cold water flow regulating valve (7);
when the absolute value of T2-T | > [ delta ] T is greater than the absolute value of T, firstly, adjusting the opening degree of the cold water flow regulating valve (7) between 0% and 100% according to a median progressive method; if T2-T & ltDELTA & gt, adjusting the opening degree of the cold water flow regulating valve (7) in a mode of increasing the opening degree in a median progressive method; when the opening degree of the cold water flow regulating valve (7) is adjusted to be 100%, if T2-T & ltDELTA & gt is still met; gradually increasing the opening degree of the reflux flow regulating valve (5) according to preset steps until the water temperature in the water mixing cavity (6) meets the condition that | T2-T | is less than or equal to DeltaT;
if T-T2 >. DELTA.T, the opening of the cold water flow rate regulating valve (7) is adjusted in a manner such that the opening decreases in a median progression manner.
2. A water-saving intelligent hot water regulator according to claim 1, wherein: the control panel (11) comprises a display module and a control instruction input module.
3. A water-saving intelligent hot water regulator according to claim 2, wherein: the control instruction input module inputs target water temperature information by adopting a keyboard input mode or a knob switch input mode.
4. A water-saving intelligent hot water regulator according to claim 1, wherein: the box body of the mounting box (1) is square, the hot water pipe opening and the cold water pipe opening are located below the mounting box (1), and the water outlet pipe opening is located above the mounting box (1).
5. A water-saving intelligent hot water regulator according to any one of claims 1-4, wherein: divide into circuit installation cavity and water route installation cavity through baffle (101) in mounting box (1), circuit control panel (10) set up in the circuit installation cavity, booster pump (2), three-way valve (3), check valve (4), backward flow control valve (5), muddy water chamber (6), cold water flow control valve (7), first temperature detector (8) and second temperature detector (9) all set up in the water route installation cavity, and the control scheme between circuit installation cavity and the water route installation cavity passes through the water proofness connector on baffle (101) and connects.
6. A control method of a water-saving intelligent hot water regulator as claimed in claim 1, comprising the steps of:
s1: initializing a system, keeping a booster pump (2), a backflow flow regulating valve (5) and a cold water flow regulating valve (7) closed, connecting a three-way valve (3) with a first water outlet end, and determining a temperature deviation threshold value delta T;
s2: inputting a starting instruction and judging a water supply mode;
when the mode is the hot water mode, the steps are executed according to S301-S303;
s301: starting a booster pump (2);
s302: acquiring the hot water temperature T1 detected by the first water temperature detector (8), judging whether the current hot water temperature T1 is greater than the target water temperature T, if T1 is greater than or equal to T, controlling the three-way valve (3) to be communicated with a second water outlet end, and entering S303; otherwise, the three-way valve (3) maintains the state of connecting the first water outlet end;
s303: acquiring the hot water temperature T2 detected by a second water temperature detector (9), and enabling the water temperature in the water mixing cavity (6) to meet | T2-T | ≦ Δ T by adjusting the backflow flow regulating valve (5) and the cold water flow regulating valve (7);
when the cold water mode is adopted, the cold water flow regulating valve (7) is directly regulated to reach a preset opening degree;
s3: and inputting a closing instruction, and returning the system to an initialization state.
7. A control method of a water-saving intelligent hot water regulator according to claim 6, wherein: the target water temperature T is directly input or adjusted through a keyboard module or a knob switch module in a control panel (11).
8. A control method of a water-saving intelligent hot water regulator according to claim 7, wherein: the control panel (11) judges a water using object according to the information acquired by the biological information acquisition module, and then controls the water supply mode of the hot water regulator according to the pre-trained control mode of the water using object, wherein the water supply mode comprises the target water temperature T and the water supply time.
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| CN112984823A (en) * | 2021-03-16 | 2021-06-18 | 济南大学 | Constant-temperature controllable shower based on fuzzy rule control |
| CN113776199A (en) * | 2021-09-26 | 2021-12-10 | 广东万和热能科技有限公司 | Water mixing device control method for water heater, water mixing device and control device |
| TWI773582B (en) * | 2021-11-12 | 2022-08-01 | 國立高雄科技大學 | Temperature adjusting system for water heater |
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| CN2679582Y (en) * | 2004-01-07 | 2005-02-16 | 广东美的集团股份有限公司 | Constant temp outlet electrothermal water heater able to set outlet temp |
| CN102901217B (en) * | 2012-10-11 | 2016-03-02 | 美的集团股份有限公司 | Water-heater system and control method thereof |
| MX2012015010A (en) * | 2012-12-18 | 2013-03-06 | Juan Alberto De Jesus Orozco Perez | Device for streamlining and saving energy and water for hot water users. |
| CN103062909B (en) * | 2013-02-06 | 2015-11-04 | 苏巨诗 | Intelligent water-saving tap |
| CN204830508U (en) * | 2015-08-03 | 2015-12-02 | 杨孚文 | Stealthy intelligence water conservation shower system |
| CN206037423U (en) * | 2016-09-13 | 2017-03-22 | 湖南科技大学 | Automatic water conservation energy -saving water heater |
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