CN107314535B - Hot water system capable of realizing heat preservation of bathtub and control method thereof - Google Patents
Hot water system capable of realizing heat preservation of bathtub and control method thereof Download PDFInfo
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- CN107314535B CN107314535B CN201710530277.9A CN201710530277A CN107314535B CN 107314535 B CN107314535 B CN 107314535B CN 201710530277 A CN201710530277 A CN 201710530277A CN 107314535 B CN107314535 B CN 107314535B
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- water
- bathtub
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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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/185—Water-storage heaters using electric energy supply
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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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/186—Water-storage heaters using fluid fuel
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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
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
-
- 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
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2021—Storage heaters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control For Baths (AREA)
Abstract
The invention discloses a hot water system capable of realizing heat preservation of a bathtub, which comprises: the bathtub is connected with the hot water outlet pipe and the water return pipe of the water heater to form a bathtub heat-preservation loop, and the water pump is arranged on the bathtub heat-preservation loop; the water heater is characterized in that the water pump is arranged in the water heater and connected with a main controller of the water heater, a backwater temperature sensor and a water inlet valve which are connected with the main controller are arranged on the water heater, a terminal controller communicated with the main controller of the water heater is arranged around the bathtub, and the terminal controller is used for setting bathing working parameters. The invention has the advantages of simple structure, convenient and accurate control, fewer joints of the household pipelines, lower hidden danger of water leakage of the system pipelines, safety and reliability. The invention also provides a hot water system control method capable of realizing heat preservation of the bathtub.
Description
Technical Field
The invention relates to a domestic hot water supply system, in particular to a hot water system capable of realizing heat preservation of a bathtub and a control method thereof.
Background
Along with the improvement of living standard of people, daily bathing is more and more studied. Because of the high working and living pressure, daily bathing becomes a luxury enjoyment, and especially bath tub bathing is the best choice for relaxing the body and mind.
Although the existing common hot water supply device can meet the requirement of bathtub water injection, the water temperature in the bathtub is gradually reduced in the bathing process, if the bathing time is long, the water temperature becomes very low and cannot be used, the hot water faucet can only be continuously opened to continuously inject water, and meanwhile, cold water needs to be continuously discharged, so that the water temperature is greatly changed in the process, and the bathing experience is seriously influenced; meanwhile, low-temperature water needs to be continuously discharged, which causes great waste.
A domestic bathtub with automatic circulation heating and thermal insulation functions is disclosed in the patent of Chinese patent with publication number CN2273389Y, as shown in figure 1, which comprises a bathtub, a circulation water outlet is arranged below the bathtub, the circulation water outlet is respectively communicated with a water inlet of a water pump and a water outlet of an electromagnetic valve, the other end of the electromagnetic valve is connected with a cold water inlet pipe, the water outlet of the water pump is connected with the water inlet of a water heater, the water outlet of the water heater is communicated with a hot water port of the bathtub, and the bathtub is also provided with a temperature and water level controller, thus forming an automatic circulation heating device. When the household bathtub system is provided with a single water heater, a circulating water pump, a bathtub, a plurality of manual control valves, an operator and more complicated connecting pipelines; the building block is difficult to construct, has poor aesthetic property after being installed, and cannot meet the requirements of modern home.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a hot water system which has a simple structure and is convenient to control and can realize the heat preservation of a bathtub.
In order to achieve the purpose, the invention adopts the following technical scheme.
A hot water system for maintaining temperature in a bathtub, comprising: the bathtub is connected with the hot water outlet pipe and the water return pipe of the water heater to form a bathtub heat-insulation loop, and the water pump is arranged on the bathtub heat-insulation loop; the water heater is characterized in that the water pump is arranged in the water heater and connected with a main controller of the water heater, a backwater temperature sensor and a water inlet valve which are connected with the main controller are arranged on the water heater, a terminal controller which is communicated with the main controller of the water heater is arranged around the bathtub, and the terminal controller is used for setting bathing working parameters.
As a further explanation of the above scheme, a water discharge button, a heat preservation button, a temperature setting button, a water discharge amount setting button and a display screen are arranged on the terminal controller.
As a further explanation of the scheme, the terminal controller is connected with the main controller of the water heater through a communication line or a wireless network.
As a further explanation of the above scheme, the water return pipe is communicated with the cold water inlet pipe of the water heater through a one-way stop valve, when the one-way stop valve is closed, the water flow can only flow from the water return pipe to the cold water inlet pipe, and when the one-way stop valve is opened, the water flow can flow from the cold water inlet pipe to the water return pipe.
As a further explanation of the proposal, a filtering device is arranged at the joint of the bathtub and the return pipe.
As a further explanation of the proposal, a bathtub drain tap is arranged on the hot water outlet pipe, a cold water inlet branch pipe is arranged between the bathtub drain tap and the cold water inlet pipe, and cold water in the cold water inlet pipe enters the bathtub through the cold water inlet branch pipe and the bathtub drain tap.
As a further explanation of the above scheme, the water heater is a gas water heater or an electric water heater.
A hot water system control method capable of realizing heat preservation of a bathtub is characterized in that a terminal controller arranged around the bathtub is used for setting the water discharge amount and the bathing temperature of the bathtub and whether the bathtub is subjected to heat preservation or not; the water heater main controller automatically drains water into the bathtub according to the water discharge amount and the bath temperature set by the terminal controller, circularly heats and preserves the temperature of the water in the bathtub according to the set heat preservation function of the bathtub, and when circularly heating and preserving the temperature, the water in the bathtub returns to the bathtub after passing through the water return pipe, the cold water inlet pipe and the hot water outlet pipe of the water heater.
As a further explanation of the above scheme, the cyclic heating and heat-preserving method comprises: circulating water in the bathtub to a water return port of the water heater by using a water pump to provide power, and determining whether the water heater works or not by judging the relation between the water return temperature T and the set bathing temperature T; when T is less than or equal to T-delta T1 ℃, the water heater works; when T is larger than or equal to T-delta T2, the water pump and the water heater stop working; Δ T1 > (Δ T2); in the heat preservation time period of the bathtub, the water pump does not work, the system can circulate at intervals, the condition of the return water temperature is detected, if the starting condition is met, the water heater can start to work, hot water is circularly supplied, and the water temperature in the bathtub is ensured to meet the bathing requirement.
As a further explanation of the scheme, the water return pipe of the water heater is communicated with the cold water inlet pipe through the one-way stop valve, after the heat preservation function of the bathtub is closed, the water pump stops working, the one-way stop valve at the joint of the water return pipe of the water heater and the cold water inlet pipe is opened, cold water flows into the bathtub through the water return pipe to clean the pipeline, and after the cleaning is finished, the one-way stop valve is closed and returns to the bathing standby state.
The beneficial effects of the invention are:
1. the circulating water pump and the return water temperature sensor are integrated in the water heater and controlled by the main controller of the water heater, so that the water heater is simple in structure and convenient to install, the number of joints of household pipelines is small, the hidden danger of water leakage of system pipelines is lowered, and the water heater is safe and reliable.
2. And a set of control system of the main controller is adopted, so that the operation of the system is facilitated. For example, when the system detects that the return water temperature in the system pipeline meets the set requirement, the main controller can stop the water heater and the water pump in time, and the separated system can stop the water heater and the water pump only by delaying, so that waste is caused, and the water comfort is influenced.
3. Can realize pipeline self-cleaning, after closing bathtub heat preservation function, water pump stop work in the water heater, the water heater wet return can be opened with the one-way stop valve of advancing the cold water union coupling department simultaneously, and cold water flows into the bathtub through the wet return, washs the pipeline, and 1min back stop valve is closed, and the system resumes to bathing standby state.
4. Can realize automatic water injection, close water automatically, after the water injection is accomplished, main control accessible bee calling organ lasts buzzing, shows that the water injection is accomplished, and the suggestion user can begin to use, and the water can be closed automatically to the built-in water intaking valve of water heater simultaneously, need not manual closing, and user experience is good.
Drawings
Fig. 1 is a schematic structural diagram of a hot water system capable of realizing bathtub heat preservation provided by the invention.
Fig. 2 is a flow chart of the operation of the hot water system capable of realizing bathtub heat preservation provided by the invention.
Description of reference numerals:
1: water heater, 2: bathtub, 3: water pump, 4: cold water inlet pipe, 5: hot water outlet pipe, 6: a water return pipe, 7: terminal controller, 8: cold water inlet branch pipe, 9: one-way shutoff valve, 10: and (4) a filtering device.
Detailed Description
In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; mechanical connection is also possible; the two elements can be directly connected with each other or connected with each other through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above-mentioned terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless otherwise specified and limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature "above," "below," and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply an elevation where the first feature is at a higher level than the second feature. First feature "above", "below" and "under" second feature may include first feature being directly below or obliquely below the second feature, or merely indicating that the first feature is at a lower level than the second feature.
The technical scheme and the beneficial effects of the invention are clearer and clearer by further describing the specific embodiments of the invention with the accompanying drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the invention, but are not to be construed as limiting the invention.
As shown in fig. 1, a hot water system for keeping a bathtub warm includes: the bathtub heat preservation system comprises a water heater 1, a bathtub 2 and a water pump 3, wherein a cold water inlet pipe 4, a hot water outlet pipe 5 and a water return pipe 6 are arranged on the water heater 1, the bathtub 2 is connected with the hot water outlet pipe 5 and the water return pipe 6 of the water heater 1 to form a bathtub heat preservation loop, and the water pump 3 is arranged on the bathtub heat preservation loop; the bath water heater is characterized in that the water pump 3 is arranged in the water heater 1 and connected with a main controller of the water heater 1, a return water temperature sensor connected with the main controller is arranged on the water heater 1, a terminal controller 7 communicated with the main controller of the water heater is arranged around the bathtub, and the terminal controller 7 is used for setting bath working parameters.
The water heater 1 is preferably a gas water heater. A bathtub drain tap is arranged on the hot water outlet pipe 5, a cold water inlet branch pipe 8 is arranged between the bathtub drain tap and the cold water inlet pipe 4, and cold water in the cold water inlet pipe 4 enters the bathtub 2 through the cold water inlet branch pipe 8 and the bathtub drain tap so as to drain cold water for the bathtub.
The water return pipe 6 is communicated with the cold water inlet pipe 4 of the water heater through a one-way stop valve 9, and the one-way stop valve 9 is arranged in the water heater 1. When the one-way stop valve 9 is closed, water flow can only flow to the cold water inlet pipe 4 from the water return pipe 6, and when the one-way stop valve 9 is opened, water flow can flow to the water return pipe 6 from the cold water inlet pipe 4. Preferably, a filter device 10 is further provided at the junction of the bathtub 2 and the return pipe 6 to prevent foreign matter such as hair in the bathtub 2 from entering the water heater 1 through the return pipe 6.
The terminal controller 7 is provided with a water discharge key, a heat preservation key, a temperature setting key, a water discharge amount setting key and a display screen. And the terminal controller 7 is communicated with the main controller of the water heater through a home local area network. In other embodiments, the terminal controller 7 is connected to the main water heater controller through a communication line or a wireless network, which is not limited to the embodiment.
As shown in FIG. 2, in actual operation, the terminal controller 7 arranged around the bathtub is used to set the water discharge amount of the bathtub, the bathing temperature and whether the bathtub is kept warm; the main controller of the water heater automatically drains water into the bathtub according to the water discharge amount and the bath temperature set by the terminal controller 7, circularly heats and preserves the temperature of the water in the bathtub according to the set heat preservation function of the bathtub, and when circularly heating and preserving the temperature, the water in the bathtub 2 returns into the bathtub 2 after passing through the water return pipe 6 of the water heater, the cold water inlet pipe 4 and the hot water outlet pipe 5.
The specific circulating heating heat preservation principle is as follows: the water in the bathtub 2 is circulated to the water return opening 6 of the water heater by using the power provided by the water pump 3, and whether the water heater 1 works or not is determined by judging the relation between the return water temperature T and the set bathing temperature T through the return water temperature sensor. 1) When T is less than or equal to T-delta T1 ℃, the water heater works; when T is larger than or equal to T-delta T2, the water pump and the water heater stop working; the range of the delta T1 is 4-8 ℃, and the range of the delta T2 is 1-3 ℃. 2) In the heat preservation time period of the bathtub, when the water pump 3 does not work, the main controller controls the water pump 3 to circulate at intervals (for example, 3min, which can be set according to actual needs), the condition of the return water temperature is detected, if the starting condition is met, the water heater 1 is started to work, hot water is supplied circularly, and the water temperature in the bathtub 2 is ensured to meet the bathing requirement. 3) After the heat preservation function of the bathtub is closed, the water pump 3 stops working, the one-way stop valve 9 at the joint of the water return pipe 6 of the water heater and the cold water inlet pipe 4 is opened, cold water in the cold water inlet pipe 4 flows into the bathtub through the water return pipe 6 to clean the pipeline, and the one-way stop valve 9 is closed after the cleaning is finished and is recovered to a bathing standby state.
It will be appreciated by those skilled in the art from the foregoing description of construction and principles that the invention is not limited to the specific embodiments illustrated above, and that modifications and alterations based on the teachings of the invention known in the art are intended to be included within the scope of the invention, which is defined in the following claims and their equivalents.
Claims (7)
1. A hot water system for maintaining temperature in a bathtub, comprising: the bathtub is connected with the hot water outlet pipe and the water return pipe of the water heater to form a bathtub heat-insulation loop, and the water pump is arranged on the bathtub heat-insulation loop; the device is characterized in that the water pump is arranged in the water heater and connected with a main controller of the water heater, a backwater temperature sensor and a water inlet valve which are connected with the main controller are arranged on the water heater, a terminal controller which is communicated with the main controller of the water heater is arranged around the bathtub, and the terminal controller is used for setting bathing working parameters;
the water return pipe is communicated with a cold water inlet pipe of the water heater through a one-way stop valve, when the one-way stop valve is closed, water flow can only flow to the cold water inlet pipe from the water return pipe, and when the one-way stop valve is opened, water flow can flow to the water return pipe from the cold water inlet pipe;
when the heat preservation function of the bathtub is closed, the water pump stops working, the one-way stop valve at the joint of the water return pipe and the cold water inlet pipe of the water heater is opened, cold water flows into the bathtub through the water return pipe to clean the pipeline, and the one-way stop valve is closed after cleaning is completed and returns to a bathing standby state.
2. The hot water system capable of realizing insulation of the bathtub according to claim 1, wherein a water discharge button, an insulation button, a temperature setting button, a water discharge amount setting button and a display screen are arranged on the terminal controller.
3. The hot water system capable of realizing bathtub heat preservation according to claim 1, wherein the terminal controller is connected with the main controller of the water heater through a communication line or a wireless network.
4. The hot water system for realizing insulation of the bathtub as claimed in claim 1, wherein a filtering device is provided at the connection part of the bathtub and the return pipe.
5. The hot water system capable of realizing heat preservation of the bathtub according to claim 1, wherein a bathtub tap is provided on the hot water outlet pipe, a cold water inlet branch pipe is provided between the bathtub tap and the cold water inlet pipe, and cold water in the cold water inlet pipe enters the bathtub through the cold water inlet branch pipe and the bathtub tap.
6. The hot water system capable of realizing insulation of the bathtub according to claim 1, wherein the water heater is a gas water heater or an electric water heater.
7. A hot water system control method capable of realizing bathtub heat preservation is characterized in that a terminal controller arranged around a bathtub is used for setting the water discharge amount and bath temperature of the bathtub and whether the bathtub is subjected to heat preservation or not; the water heater main controller automatically drains water into the bathtub according to the water discharge amount and the bath temperature set by the terminal controller, circularly heats and preserves the temperature of the water in the bathtub according to the set heat preservation function of the bathtub, and when circularly heating and preserving the temperature, the water in the bathtub returns to the bathtub after passing through the water return pipe, the cold water inlet pipe and the hot water outlet pipe of the water heater;
the circulating heating and heat preservation method comprises the following steps: circulating water in the bathtub to a water return port of the water heater by using a water pump to provide power, and determining whether the water heater works or not by judging the relation between the water return temperature T and the set bathing temperature T; when T is less than or equal to T-delta T1 ℃, the water heater works; when T is larger than or equal to T-delta T2, the water pump and the water heater stop working; Δ T1 > (Δ T2); in the heat preservation time period of the bathtub, the water pump does not work, the system can circulate at intervals, the condition of the return water temperature is detected, if the starting condition is met, the water heater can start to work, hot water is circularly supplied, and the water temperature in the bathtub is ensured to meet the bathing requirement;
the water return pipe of the water heater is communicated with the cold water inlet pipe through the one-way stop valve, after the heat preservation function of the bathtub is closed, the water pump stops working, the one-way stop valve at the joint of the water return pipe of the water heater and the cold water inlet pipe is opened, cold water flows into the bathtub through the water return pipe to clean the pipeline, and the one-way stop valve is closed after the cleaning is finished and is recovered to a bathing standby state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710530277.9A CN107314535B (en) | 2017-06-28 | 2017-06-28 | Hot water system capable of realizing heat preservation of bathtub and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710530277.9A CN107314535B (en) | 2017-06-28 | 2017-06-28 | Hot water system capable of realizing heat preservation of bathtub and control method thereof |
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| CN107314535A CN107314535A (en) | 2017-11-03 |
| CN107314535B true CN107314535B (en) | 2022-12-09 |
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| CN108106015A (en) * | 2018-01-03 | 2018-06-01 | 广东万家乐燃气具有限公司 | A kind of bathtub water filling temperature control method of water and bathtub flood pattern |
| CN109730560A (en) * | 2019-02-26 | 2019-05-10 | 佛山市南海康健卫浴有限公司 | A kind of intelligent bathtub having monitoring function |
| CN110425740A (en) * | 2019-07-25 | 2019-11-08 | 宁波方太厨具有限公司 | Recycle bath system |
| CN113357826A (en) * | 2021-06-15 | 2021-09-07 | 华帝股份有限公司 | Water heater, water logging sensor and water supply control system |
| CN114017916A (en) * | 2021-11-08 | 2022-02-08 | 张家港市都市运动休闲用品有限公司 | Bathtub system and control method thereof |
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| CN207035469U (en) * | 2017-06-28 | 2018-02-23 | 广东万家乐燃气具有限公司 | A kind of hot-water heating system of achievable bathtub insulation |
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| DE4216492A1 (en) * | 1992-05-19 | 1993-11-25 | Peter Achterberg | Domestic bath - has hot water pipes embedded between side walls and outer insulating layer to keep bath water hot |
| CN2273389Y (en) * | 1996-09-24 | 1998-01-28 | 胡文建 | Automatic circulation heating insulation domestic bathtub |
| EP1921397A1 (en) * | 2005-08-12 | 2008-05-14 | Daikin Industries, Ltd. | Hot water supply device |
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| CN107314535A (en) | 2017-11-03 |
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