CN111520913A - Water heater gap cold and hot water treatment device and control method - Google Patents
Water heater gap cold and hot water treatment device and control method Download PDFInfo
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- CN111520913A CN111520913A CN202010401501.6A CN202010401501A CN111520913A CN 111520913 A CN111520913 A CN 111520913A CN 202010401501 A CN202010401501 A CN 202010401501A CN 111520913 A CN111520913 A CN 111520913A
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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
- F24H9/0005—Details for water heaters
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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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- Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a gap cold and hot water treatment device for a water heater, which comprises a water heater body, a temperature sensor, a water flow sensor, a control valve body, a circulating pump, a water storage body and a control circuit. The temperature sensor, the water flow sensor, the circulating pump and the control valve body are respectively connected with the control circuit. The control circuit is installed on the shell, a hot water outlet of the water heater body is connected with the control valve body, the temperature sensor and the pressure sensor are installed on the control valve body, the control valve body is connected with the circulating pump, the circulating pump is connected with the water storage body, and the water storage body is connected with a cold water inlet of the water heater body. When the control circuit detects that the water heater stops working through the water flow sensor, the circulating pump is started, the water heater body is started to continue heating the residual water, the hot water is stored in the water storage body, then the circulating pump is stopped, after the water heater stops working, the circulating pump is started again, and the pipeline residual heat is pumped away in a circulating residual water mode in the time before the water heater is restarted to heat.
Description
Technical Field
The invention relates to a water heater device, in particular to a water return device of a zero-cold-water heater.
Background
The water heater increases the temperature of cold water into hot water within a certain time through various physical principles. During the use process of the water heater, a signal is generated through water flow, and the water heater starts to work. Therefore, in the use process of the water heater, due to physical properties, after the hot water faucet is opened, cold water is actually output in the initial working stage of the water heater, and the cold water can be heated to the use temperature after a period of time. This is an unavoidable drawback of current water heaters for physical reasons. Especially when the water tap is frequently closed and opened for a short time, the water heater outputs substantially all cold water. Zero cold water heaters also have this drawback. Therefore, the problem of cold water coming out from the gap of the water heater seriously affects the comfort of users and wastes water resources. Improvements are needed.
The water heater is closed after working for a period of time, and residual water in a local pipeline can be continuously heated due to residual heat in a pipeline of the water heater, so that the local water temperature is too high, and the risk of scalding is increased.
Disclosure of Invention
The invention aims to provide a device and a method for treating gap cold and hot water of a water heater, aiming at solving the problem that the gap cold and hot water can be generated after a hot water faucet is restarted in the using process of the existing water heater, and providing a device for automatically starting a circulating pump twice when the faucet is closed. Thus, when the user turns on the water heater again, the hot water in the water storage body flows out firstly in the water heater during the heating and temperature rising process of the water heater. Thereby solved the water heater in the use, opened tap and to have the problem that is interrupted cold water outflow, improved the comfort level that the user used the water heater. The circulating pump in the device is started for the second time when the hot water is filled with the full water storage body, the circulating pump is restarted for a short time immediately after the water heater stops, and residual water in the pipeline of the water heater is continuously circulated and residual heat in the pipeline of the water heater is taken away in the period that the water heater does not enter heating work, so that the problem that the temperature of local residual water in the water heater is overhigh is solved.
In order to achieve the purpose, the invention provides the following technical scheme:
a water heater interstitial cold water treatment device comprising: the water heater comprises a water heater body, a water outlet interface of the water heater, a water temperature sensor, a water flow sensor, a telescopic stepping motor, a control valve core, a control valve body, a hot water output channel interface, a cold water interface, a circulation channel interface, a circulation pump, a water storage body interface, a water storage body, a cold water inlet interface of the water heater, a control circuit board and a water heater shell. The control circuit board is installed on the water heater shell. One end of the water outlet port of the water heater is connected with the water heater body, and the other end of the water outlet port of the water heater is connected with the control valve body. The temperature sensor and the water flow sensor are arranged on the control valve body. The telescopic stepping motor is connected with the control valve core and is arranged on the control valve body to form the control valve body. The hot water output channel is connected to the control valve body through an interface to form a hot water channel. The cold water interface is connected to the control valve body. One end of the circulating channel interface is installed on the control valve body, and the other end of the circulating channel interface is connected with the circulating pump to form a circulating channel. One end of the water storage body interface is connected with the circulating pump, and the other end of the water storage body interface is connected with the water storage body. One end of the cold water inlet interface of the water heater is connected with the water storage body, and the other end of the cold water inlet interface of the water heater is connected with the water heater body. And the temperature sensor, the water flow sensor signal circuit, the telescopic stepping motor and the control circuit of the circulating pump are connected to the control circuit board.
The water storage body is formed by bending and winding a metal tubular object.
The invention also provides a method for treating cold and hot water in the gap of the water heater, and the control circuit detects or controls to execute corresponding operation through a line when the hot water faucet is closed in the use process of the water heater.
Further, the control method comprises the following steps:
the water flow sensor detects that the hot water faucet is closed, and the water heater stops working;
the telescopic motor drives the control valve core to move forwards, so that the circulating channel is opened, and the hot water output channel is closed;
the circulating pump is started, and residual water circulates in the pipeline;
starting the water heater body;
the temperature sensor detects the temperature of the residual water, when the temperature of the residual water reaches a set temperature, the control circuit delays for a period of time, the residual water can continue to circulate in the pipeline, and the heated residual water is filled in the water storage body;
the circulating pump stops working, and residual water is not circulated any more;
the water heater body stops working;
the circulating pump is restarted and stops after running for a short time, and the circulating residual water is utilized to pump away the residual heat in the pipeline of the water heater and uniformly heat the residual water by utilizing the time that the water heater does not perform heating work;
the telescopic stepping motor drives the control valve core to move backwards, the circulation channel is closed, and the hot water output channel is opened.
Compared with the prior art, the invention has the following beneficial effects:
1. the gap cold and hot water treatment device for the water heater can enable hot water to flow out of a pipeline of the water heater in time when the water heater is turned off and restarted in the using process of the water heater.
2. When the water heater stops working, the circulating pump is started for a short time, the residual heat in the water heater is pumped away by a method of circulating residual water, the residual water is uniformly heated, the local residual water is prevented from being too high in temperature, and the risk of scalding is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a gap hot and cold water treatment device for a water heater in this embodiment 1
FIG. 2 is a schematic structural diagram of a gap hot and cold water treatment device of a water heater in this embodiment 2
FIG. 3 is a flow chart of the implementation functions of the method for processing cold and hot water in the gap of a water heater in this embodiment
In fig. 1: 1. the water heater comprises a water heater body, 2, a water heater water outlet interface, 3, a water temperature sensor, 4, a water flow sensor, 5, a telescopic stepping motor, 15, a control valve core, 6, a control valve body, 7, a hot water output channel interface, 8, a cold water interface, 9, a circulation channel interface, 10, a circulating pump, 11, a water storage body interface, 12, a water storage body, 13, a water heater cold water inlet interface, 14, a control circuit board, 16 and a shell.
In fig. 2: 1. the water heater comprises a water heater body, 2, a water outlet interface of the water heater, 3, a water temperature sensor, 4, a water flow sensor, 6, a control valve body, 15, a one-way valve core, 7, a hot water output channel interface, 8, a cold water interface, 9, a circulation channel interface, 10, a circulation pump, 11, a water storage body interface, 12, a water storage body, 13, a cold water inlet interface of the water heater, 14, a control circuit board, 16 and a shell.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The following examples illustrate the invention. However, the present invention is not limited to these examples. The technical scheme of the invention is to cover all modifications, equivalents and replacements of partial technical characteristics of the specific embodiment of the invention without departing from the spirit of the technical scheme of the invention.
Detailed description of the preferred embodiment 1
Referring to fig. 1, the gap cold and hot water treatment device for the water heater in the embodiment includes a water heater body 1, a water outlet 2 of the water heater, a water temperature sensor 3, a water flow sensor 4, a telescopic stepping motor 5, a control valve core 15, a control valve body 6, a hot water output channel interface 7, a cold water interface 8, a circulation channel interface 9, a circulation pump 10, a water storage body interface 11, a water storage body 12, a cold water inlet 13 of the water heater, a control circuit board 14, and a housing 16. The control circuit board 14 is a control circuit for controlling the circulating pump, the telescopic stepping motor 5 and collecting signals of the water temperature sensor 3 and the water flow sensor 4. Wherein the control valve core 15 is connected with the telescopic stepping motor 5, then the telescopic stepping motor 15 is connected with the control valve body 6, and the water temperature sensor 3 and the water flow sensor 4 are arranged on the control valve body 6 to jointly form the control valve. The control circuit board 14 is arranged on the shell 16, one end of the water outlet interface 2 of the water heater is connected with the water heater body 1, and the other end is connected with the control valve body 6. The hot water output channel interface 7 is arranged on the control valve body 6 to form a hot water channel. The cold water interface 8 is connected on the control valve body 6, one end of the circulating channel interface 9 is installed on the control valve body 6, and the other end is connected with the circulating pump 10 to form a circulating channel. One end of the water storage body interface 11 is connected with the circulating pump 10, and the other end is connected with the water storage body 12. One end of a cold water inlet port 13 of the water heater is connected with the water storage body 12, and the other end is connected with the water heater body 1. The signal lines of the temperature sensor 3 and the water flow sensor 4, and the control lines of the telescopic stepping motor 5 and the circulating pump 10 are connected to a control circuit board 14.
Specific example 2
Referring to fig. 2, the device for treating cold and hot water in a gap of a water heater in the embodiment includes a water heater body 1, a water outlet 2 of the water heater, a water temperature sensor 3, a water flow sensor 4, a one-way control valve 6, a hot water output channel interface 7, a cold water interface 8, a circulation channel interface 9, a circulation pump 10, a water storage interface 11, a water storage 12, a cold water inlet 13 of the water heater, a control circuit board 14, and a housing 16. The control circuit board 14 is a control circuit for controlling the circulating pump and collecting signals of the water temperature sensor 3 and the water flow sensor 4. The medium temperature sensor 3 and the water flow sensor 4 are arranged on the control valve body 6, and the one-way valve core 15 is arranged in the control valve body to form the one-way control valve body. The control circuit board 14 is arranged on the shell, one end of the water outlet interface 2 of the water heater is connected with the water heater body 1, and the other end is connected with the one-way control valve body 6. The hot water output channel interface 7 is arranged on the one-way control valve body 6 to form a hot water channel. One end of a circulation channel interface 9 is arranged on the one-way control valve body 6, and the other end of the circulation channel interface is connected with a circulation pump 10 to form a circulation channel together. One end of the water storage body interface 11 is connected with the circulating pump 10, and the other end is connected with the water storage body 12. The cold water interface 8 is connected with the one-way control valve body 6. One end of a cold water inlet port 13 of the water heater is connected with the water storage body 12, and the other end is connected with the water heater body 1. The temperature sensor 3, the water flow sensor 4 and the control circuit of the circulating pump 10 are connected to the control circuit board 14.
Specific example 3
Referring to fig. 3, the control method of the hot and cold water gap treatment device for the water heater of the present embodiment is applied to the control method of the hot and cold water gap treatment device for the water heater as described in embodiments 1 and 2.
Further, the control method of the embodiment includes the following steps:
specifically, when the hot water faucet is closed, the control circuit of the control circuit board 14 detects that the water heater body 1 stops working through the water flow sensor 4, the control circulating pump 10 is controlled to start, the control valve body 6 opens the circulating channel, the hot water channel is closed, the pipeline residual water flows in a circulating manner, the water heater body 1 is started again, the pipeline residual water is heated, the control circuit detects that the water heater body 1 is heated successfully through the temperature sensor 3, the heated residual water is stored in the water storage body 12, the control circuit calculates that the water storage body 12 stores enough hot water, the circulating pump 10 is controlled to stop, the water heater body 1 stops working, then the circulating pump is controlled to start again, the residual water continues circulating, and the residual water in the pipeline of the water heater body 1 is pumped away and the residual water is heated by utilizing the residual water circulation within the delay time from the start of the water. When the hot water tap is turned on again, hot water in the water storage body flows through the water heater body 1 before heating is started.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (7)
1. A cold and hot water treatment device for a gap of a water heater comprises a water heater body 1, a water outlet interface 2 of the water heater, a water temperature sensor 3, a water flow sensor 4, a telescopic stepping motor 5, a control valve core 15, a control valve body 6, a hot water output channel interface 7, a cold water interface 8, a circulating channel interface 9, a circulating pump 10, a water storage body interface 11, a water storage body 12, a cold water inlet interface 13 of the water heater, a control circuit board 14 and a shell 16.
2. The water heater as claimed in claim 1, wherein a water storage body 12 is provided at a cold water inlet of the water heater body 1, a water flow sensor 4 and a circulation pump 10 are provided between a hot water outlet of the water heater body 1 and the water storage body 12, the circulation pump 10 is immediately started after the water flow sensor 4 detects that the faucet is turned off and the water heater body 1 stops working, the water heater body 1 continues to heat the residual water, the heated residual water is stored in the water storage body 12 through the circulation pump 10, and when the faucet is turned on again, the hot water in the water storage body 12 flows out from the water heater body 1 in the initial heating time.
3. The water storage device as claimed in claim 1, wherein the water storage body 12 is formed by winding a metal tube in a bending manner.
4. The control method of a gap cold and hot water treatment device of a water heater as claimed in claim 1, wherein during the use of the water heater, when the hot water tap is turned off, the control circuit of the control circuit board 14 detects that the water heater body 1 stops working through the water flow sensor 4, controls the circulation pump 10 to start, controls the valve body 6 to close the hot water channel, opens the circulation channel, circulates the pipeline residual water, restarts the water heater body 1, heats the pipeline residual water, detects that the water heater body 1 is successfully heated through the temperature sensor 3, stores the heated residual water in the water storage body 12, controls the circulation pump 10 to stop after the control circuit calculates that enough hot water is stored in the water storage body 12, stops the water heater body 1, then immediately controls the circulation pump 10 to start again, continues circulating the residual water, and delays the time from the start of the water heater body 1 to the heating process, residual heat in the pipeline of the water heater body 1 is pumped away by utilizing residual water circulation and the residual water is heated.
5. The control method according to claim 4, wherein the water heater stops operating when the tap is determined to be off by detecting a change in water pressure by the water flow sensor 4.
6. The control method according to claim 4, wherein after the water heater body 1 stops working, the circulation pump 10 is started for the first time, the residual water in the pipeline is continuously heated by circulation, the hot water is filled in the water storage body 12, and then the circulation pump is stopped, which is the treatment method of the intermittent cold water.
7. The control method according to claim 4, characterized in that after the water heater body 1 is stopped again, the circulating pump 10 is started for the second time immediately, the heating process is started by the water heater for a certain delay time, during the time, the residual heat in the pipeline of the water heater is pumped out by the method of circulating the residual water and the residual water is uniformly heated, and then the circulating pump is stopped, which is the treatment method of the intermittent hot water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010401501.6A CN111520913A (en) | 2020-05-13 | 2020-05-13 | Water heater gap cold and hot water treatment device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010401501.6A CN111520913A (en) | 2020-05-13 | 2020-05-13 | Water heater gap cold and hot water treatment device and control method |
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| CN111520913A true CN111520913A (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010401501.6A Pending CN111520913A (en) | 2020-05-13 | 2020-05-13 | Water heater gap cold and hot water treatment device and control method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2499775A1 (en) * | 2005-03-15 | 2006-09-15 | Patrick M. H. Lai | Water heater flue gas heat recovery system |
| CN204612139U (en) * | 2015-04-22 | 2015-09-02 | 重庆雨幻科技有限公司 | A kind of energy-saving water heater |
| CN105387629A (en) * | 2015-12-11 | 2016-03-09 | 广东万家乐燃气具有限公司 | Constant-temperature type gas water heater and control method |
| CN205747516U (en) * | 2016-04-22 | 2016-11-30 | 刘照云 | Zero cold water water supply installation |
| CN206875716U (en) * | 2017-04-17 | 2018-01-12 | 广东芬尼克兹节能设备有限公司 | Stepping ratio triple valve and Teat pump boiler |
-
2020
- 2020-05-13 CN CN202010401501.6A patent/CN111520913A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2499775A1 (en) * | 2005-03-15 | 2006-09-15 | Patrick M. H. Lai | Water heater flue gas heat recovery system |
| CN204612139U (en) * | 2015-04-22 | 2015-09-02 | 重庆雨幻科技有限公司 | A kind of energy-saving water heater |
| CN105387629A (en) * | 2015-12-11 | 2016-03-09 | 广东万家乐燃气具有限公司 | Constant-temperature type gas water heater and control method |
| CN205747516U (en) * | 2016-04-22 | 2016-11-30 | 刘照云 | Zero cold water water supply installation |
| CN206875716U (en) * | 2017-04-17 | 2018-01-12 | 广东芬尼克兹节能设备有限公司 | Stepping ratio triple valve and Teat pump boiler |
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Application publication date: 20200811 |