CN111561777A - Water heater system and control method thereof - Google Patents

Water heater system and control method thereof Download PDF

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Publication number
CN111561777A
CN111561777A CN202010440981.7A CN202010440981A CN111561777A CN 111561777 A CN111561777 A CN 111561777A CN 202010440981 A CN202010440981 A CN 202010440981A CN 111561777 A CN111561777 A CN 111561777A
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CN
China
Prior art keywords
water
water heater
outlet end
water outlet
thermostatic chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010440981.7A
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Chinese (zh)
Inventor
李胤媛
马曾文
曹明阳
李良潭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202010440981.7A priority Critical patent/CN111561777A/en
Publication of CN111561777A publication Critical patent/CN111561777A/en
Pending legal-status Critical Current

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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
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/124—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using fluid fuel
    • F24H1/125—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using fluid fuel combined with storage tank
    • 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
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using fluid fuel
    • 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
    • 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
    • F24H9/1818—Arrangement or mounting of electric heating means
    • 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
    • F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel

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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)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The invention relates to a water heater system and a control method thereof, wherein the water heater system comprises: a water heater host; the water inlet end of the constant temperature cavity is connected with the water outlet end of the water heater main machine; and the water inlet end of the water utilization pipeline is respectively connected with the water outlet end of the water heater main machine and the water outlet end of the constant temperature cavity, and the water inlet end of the water utilization pipeline can be alternatively communicated with the water outlet end of the water heater main machine or the water outlet end of the constant temperature device. Above-mentioned water heater system is owing to set up constant temperature equipment, consequently after the user pauses the water use, the hot water that the water heater main part produced can get into and store in the thermostatic chamber and need not to shut down, and after resuming the water use, hot water can flow out from the thermostatic chamber rapidly moreover, and avoided the undulant problem of temperature that the water supply of water heater host computer brought, and reduced opening of water heater main part and stopped the number of times to when showing and improving user experience, prolonged the life of water heater host computer.

Description

Water heater system and control method thereof
Technical Field
The invention relates to the technical field of heat exchange equipment, in particular to a water heater system and a control method thereof.
Background
With the development of society and the progress of science and technology, the requirements of people on living quality are gradually improved, and a water heater for providing living hot water becomes one of the essential electric appliances in people's life. And as the requirements of people on the quality of life are gradually improved, the requirements on the water heater are also gradually improved.
However, at present, in the process of using the water heater by a user, the user often needs to temporarily stop using water for a short time, so that cleaning products such as shampoo, shower gel and the like can be applied to the water stopping gap to save water. However, after the user opens the water using terminal again, the water using terminal often can output cold water or the condition that the temperature of the water fluctuates seriously appears, even cause the user to scald, and seriously influence the use experience of the water heater.
Disclosure of Invention
Therefore, it is necessary to provide a water heater system and a control method thereof, which can avoid the water temperature fluctuation after the water supply is suspended, in order to solve the problem of the water temperature fluctuation after the water supply is suspended.
A water heater system, the water heater system comprising:
a water heater host;
the water inlet end of the constant temperature cavity is connected with the water outlet end of the water heater main machine; and
the water inlet end of the water utilization pipeline is respectively connected with the water outlet end of the water heater main machine and the water outlet end of the thermostatic chamber, and the water inlet end of the water utilization pipeline can be alternatively communicated with the water outlet end of the water heater main machine or the water outlet end of the thermostatic device;
wherein the water heater system has a temporary water shut-off condition;
when the water heater system is in the temporary water cut-off state, the water outlet end of the water heater main machine and the water outlet end of the thermostatic chamber are both disconnected with the water inlet end of the water using pipeline, and the water outlet end of the water heater main machine is communicated with the water inlet end of the thermostatic chamber;
and when the water heater system is switched from the temporary water cut-off state to the opening state, the water outlet end of the constant temperature cavity and the water outlet end of the water heater main machine are sequentially communicated with the water inlet end of the water using pipeline.
In one embodiment, the water heater system further comprises a three-way reversing unit, and the water outlet end of the water heater main machine is connected with the water inlet end of the thermostatic chamber and the water inlet end of the water utilization pipeline through the three-way reversing unit.
In one embodiment, the thermostatic device further comprises a heating unit for heating the thermostatic chamber.
In one embodiment, the thermostatic device further comprises a thermostatic chamber temperature detection unit, the thermostatic chamber temperature detection unit is arranged in the thermostatic chamber, and the thermostatic chamber temperature detection unit is used for detecting the temperature of water in the thermostatic chamber.
In one embodiment, the water heater system further comprises a main unit water outlet temperature detection unit, the main unit water outlet temperature detection unit is arranged at the water outlet end of the main unit of the water heater, and the main unit water outlet temperature detection unit is used for detecting the water outlet temperature of the water outlet end of the main unit of the water heater.
A method of controlling a water heater system, comprising the steps of:
acquiring the working state of a water heater system;
when the water heater system is switched from an open state to a temporary water cut-off state, the water outlet end of the water heater main machine is controlled to be disconnected with the water inlet end of the water using pipeline, the water outlet end of a thermostatic chamber of the thermostatic device is disconnected with the water inlet end of the water using pipeline, and the water outlet end of the water heater main machine is communicated with the water inlet end of the thermostatic chamber;
and after the water heater system is switched from the temporary water cut-off state to the opening state, controlling the water outlet end of the constant temperature cavity and the water outlet end of the water heater main machine to be sequentially communicated with the water inlet end of the water using pipeline.
In one embodiment, when the water heater system is switched from the on state to the temporary water-cut-off state, the operation power of the water heater main unit is controlled to be lower than a preset operation power, the water outlet temperature of the water outlet end of the water heater main unit is kept unchanged, and the water outlet flow of the water outlet end is reduced.
In one embodiment, after the water heater system is switched from the temporary water-cut-off state to the on state, the step of controlling the water outlet end of the thermostatic chamber and the water outlet end of the water heater main unit to be sequentially communicated with the water inlet end of the water using pipeline specifically includes the following steps:
when the water heater system is switched from the temporary water cut-off state to the starting state, controlling the water outlet end of the thermostatic cavity to be communicated with the water inlet end of the water using pipeline;
acquiring the volume of water in the constant-temperature cavity and the water outlet temperature of the water outlet end of the water heater main machine;
when the volume of the water in the thermostatic chamber is equal to a preset volume, or the water outlet temperature of the water outlet end of the water heater main machine is not less than a preset temperature within preset time, the water outlet end of the thermostatic chamber is controlled to be disconnected with the water inlet end of the water using pipeline, and the water outlet end of the water heater main machine is communicated with the water inlet end of the water using pipeline.
In one embodiment, the control method of the water heater system further comprises the following steps:
when the water heater system is in the temporary water cut-off state, acquiring the volume of water in the thermostatic chamber;
and when the volume of the water in the constant temperature cavity is equal to the highest volume of the constant temperature cavity, controlling the water heater host to stop and giving an alarm.
In one embodiment, the control method of the water heater system further comprises the following steps:
when the water heater system is switched from a closed state to an open state, heating the thermostatic chamber and controlling a water outlet end of the water heater main machine to be communicated with a water inlet end of the thermostatic chamber;
acquiring the water temperature in the thermostatic chamber;
and when the water temperature in the thermostatic chamber reaches a preset temperature, controlling the water outlet end of the thermostatic chamber to be communicated with the water inlet end of the water using pipeline.
In one embodiment, after the temperature of the water in the thermostatic chamber reaches a preset temperature, the step of controlling the water outlet end of the thermostatic chamber to be communicated with the water inlet end of the water using pipeline further comprises the following steps:
acquiring the water outlet temperature of the water outlet end of the water heater main machine;
when the water outlet temperature of the water outlet end of the water heater main machine is not lower than the preset temperature within the preset time, the water outlet end of the thermostatic chamber is controlled to be disconnected with the water inlet end of the water using pipeline, and the water outlet end of the water heater main machine is communicated with the water inlet end of the water using pipeline.
According to the water heater system, due to the fact that the constant temperature device is arranged, when the water heater system is switched to the temporary water cut-off state, hot water generated by the water heater main body can enter the constant temperature cavity to be stored, and after the water heater system is switched to the opening state again, the hot water can flow out of the constant temperature cavity rapidly, so that the problems of water temperature fluctuation and slow water outlet speed caused by water supply of the water heater main machine are solved, and the use experience of the water heater system is remarkably improved.
Drawings
FIG. 1 is a system diagram of a water heater system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the water heater system shown in FIG. 1 when the water outlet end of the water heater main unit is communicated with the water inlet end of the thermostatic chamber;
FIG. 3 is a schematic diagram of the water heater system shown in FIG. 1 when the water outlet end of the water heater main unit is communicated with the water inlet end of the thermostatic chamber and the water outlet end of the thermostatic chamber is communicated with the water inlet end of the water using pipeline;
FIG. 4 is a schematic diagram of the water heater system of FIG. 1 when the water outlet of the water heater main unit is in communication with the water inlet of the water usage pipe;
fig. 5 is a flowchart of a control method of a water heater system according to an embodiment of the invention.
Description of reference numerals:
100. a water heater system; 20. a water heater host; 21. a host computer is native; 212. a heat exchange unit; 214. a combustion unit; 23. a water inlet pipe; 25. a water outlet pipeline; 40. a thermostatic device; 41. a constant temperature cavity; 60. a water supply pipeline; 61. a first water inlet end; 63. a second water inlet end; 80. and a three-way reversing unit.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1, a schematic diagram of a water heater system 100 according to an embodiment of the invention is shown. An embodiment of the present invention provides a water heater system 100, and the structure of the water heater system 100 of the present application will be described below by taking the water heater system 100 as a gas water heater system as an example. The present embodiment is described as an example, and the technical scope of the present application is not limited thereto. It is understood that in other embodiments, the water heater system 100 may also be embodied as other heat exchange systems capable of generating hot water, and is not limited herein.
The water heater system 100 includes a control unit (not shown), a water heater main body 20, a thermostat device 40, a water using pipe 60, and a water using terminal (not shown), and under the control of the control unit, hot water generated by the water heater main body 20 is delivered to the water using terminal through the thermostat device 40 and the water using pipe 60 to provide hot water for a user.
Referring to fig. 1, the water heater main body 20 includes a main body 21, a water inlet pipe 23 and a water outlet pipe 25, and the main body 21 is provided with a heat exchange unit 212 and a combustion unit 214. The water inlet end of the water inlet pipe 23 is connected to an external water supply device, the water outlet end of the water inlet pipe 23 extends into the main body 21 to be connected with the water inlet end of the heat exchange unit 212, the water outlet end of the heat exchange unit 212 is connected to the water inlet end of the water outlet pipe 25, the water outlet end of the water outlet pipe 25 extends out of the main body 21 to be connected with the constant temperature device 40 and the water using pipe 60, the water using pipe 60 is connected with a water using terminal, and the water using terminal provides hot water for a user.
Specifically, the combustion unit 214 is disposed at one side of the heat exchange unit 212, and heat generated by the combustion unit 214 exchanges heat with the heat exchange unit 212, thereby heating cold water provided by an external water supply device. Specifically, in one embodiment, the combustion unit 214 includes an air intake structure and a burner connected to the air intake structure, the air intake structure is used for delivering gas to the burner, and the burner ignites and combusts the gas. The heat exchange unit 212 is located at one side of the burner, and heat generated by combustion of the gas exchanges heat with water in the heat exchange unit 212 to heat the water in the heat exchange unit 212. In this way, under the control of the control unit, the cold water in the external water supply device flows into the heat exchange unit 212 through the water inlet pipe 23, and the hot water having absorbed heat and warmed up in the heat exchange unit 212 is output through the water outlet pipe 25.
Further, the water heater main unit 20 further includes a main unit water outlet temperature detection unit (not shown), the main unit water outlet temperature detection unit is disposed at the water outlet end of the water outlet pipe 25, and the main unit water outlet temperature detection unit is configured to detect the water outlet temperature at the water outlet end of the water pipe 60 of the water heater main unit 20, and transmit the water outlet temperature to the control unit.
The thermostat device 40 is located in an area near the water use terminal, and the thermostat device 40 includes a thermostat tank having a thermostat 41, a heating unit, and a thermostat temperature detecting unit. The thermostatic chamber 41 of the thermostatic tank is used for storing hot water delivered by the water heater main unit 20, a water inlet end of the thermostatic chamber 41 is connected to a water outlet end of the water outlet pipeline 25 of the water heater main unit 20 through a pipeline, and a water outlet end of the thermostatic chamber 41 is connected to a water inlet end of the water utilization pipeline 60 through a pipeline. The heating unit is an electric heating mechanism disposed inside the thermostatic chamber 41, and the heating unit is used for heating the thermostatic chamber 41 to increase the temperature of water in the thermostatic chamber 41. The thermostatic chamber temperature detecting unit is arranged in the thermostatic chamber 41 and used for detecting the water temperature in the thermostatic chamber 41 in real time and transmitting the water temperature to the control unit.
The water inlet end of the water using pipeline 60 is connected to the water outlet end of the water heater main unit 20 and the water outlet end of the thermostatic chamber 41 through pipelines, under the control of the control unit, the water inlet end of the water using pipeline 60 can be alternatively communicated with the water outlet end of the water heater main unit 20 or the water outlet end of the thermostatic chamber 41 of the thermostatic device 40, and the water outlet end of the water using pipeline 60 is connected to the water using terminal. Thus, the water heater main body 20 and the thermostat 40 can supply water to the water supply pipe 60, respectively.
Specifically, the water using pipeline 60 includes a first water inlet end 61 and a second water inlet end 63, the first water inlet end 61 of the water using pipeline 60 is connected to the water outlet end of the water outlet pipeline 25 of the water heater main unit 20, and the second water inlet end 63 of the water using pipeline 60 is connected to the water outlet end of the thermostatic chamber 41. In this way, under the control of the control unit, the water using pipe 60 can be connected to the water outlet end of the water outlet pipe 25 through the first water inlet end 61 to obtain the water generated by the water heater main unit 20, or connected to the water outlet end of the thermostatic chamber 41 through the second water inlet pipe 23 to obtain the water in the thermostatic chamber 41 to meet different needs of the user.
Further, the water heater system 100 comprises a three-way reversing unit 80, wherein the three-way reversing unit 80 is used for connecting the water outlet end of the water heater main body 20, the thermostatic chamber 41 and the water using pipeline 60, and controlling the communication state of the water heater main body 20, the thermostatic chamber 41 and the water using pipeline 60 under the control of the control unit.
Specifically, the three-way reversing unit 80 is a three-way reversing valve, and includes an openable water inlet valve port, a first water outlet valve port, and a second water outlet valve port. Wherein, the water inlet valve port is connected to the water outlet end of the water outlet pipeline 25, the first water outlet valve port is connected to the water inlet end of the thermostatic chamber 41 through a pipeline, and the second water outlet valve port is connected to the first water inlet end 61 of the water utilization pipeline 60. Thus, the three-way reversing unit 80 can control the water inlet valve port and the first water outlet valve port to communicate with each other to communicate the water outlet end of the water heater main unit 20 with the water inlet end of the thermostatic chamber 41, or control the water inlet valve port and the second water outlet valve port to communicate with each other to communicate the water outlet end of the water heater main unit 20 with the first water inlet end 61 of the water using pipe 60 under the control of the control unit.
As shown in fig. 1 to 4, the water heater system 100 has an off state, a temporary water cut-off state and an on state, and a user can control the water heater system 100 to switch between the off state, the temporary water cut-off state and the on state, so as to meet different water demands.
Referring to fig. 1, when the water heater system 100 is in the off state, the water heater main unit 20 is in the shutdown state, the water outlet end of the thermostatic chamber 41 and the second water inlet end 63 of the water using pipeline 60 are also disconnected from each other, and no hot water is output from the water using terminal.
Referring to fig. 2, when the water heater system 100 is switched from the off state to the on state, the control unit controls the water outlet end of the thermostatic chamber 41 and the second water inlet end 63 of the water using pipe 60 to be disconnected, the water outlet end of the water outlet pipe 25 of the water heater main unit 20 and the first water inlet end 61 of the water using pipe 60 are also disconnected, and the water outlet end of the water outlet pipe 25 and the water inlet end of the thermostatic chamber 41 are connected. At this time, the heating unit heats the water in the thermostatic chamber 41 under the control of the control unit, and the water outlet end of the water heater main body 20 outputs hot water into the thermostatic chamber 41 to be mixed with the water in the thermostatic chamber 41.
As shown in fig. 3, in the process that the water outlet end of the water heater main unit 20 outputs hot water to the thermostatic chamber 41 to be mixed with water in the thermostatic chamber 41, when the thermostatic chamber temperature detecting unit detects that the temperature of the water in the thermostatic chamber 41 reaches a preset temperature, the control unit controls the water outlet end of the thermostatic chamber 41 to be communicated with the second water inlet end 63 of the water using pipeline 60, and the water outlet end of the thermostatic chamber 41 outputs hot water to the water using pipeline 60, so as to provide hot water for the user.
Further, in the process of outputting hot water from the water outlet end of the thermostatic chamber 41 to the water using pipe 60, the main unit water outlet temperature detecting unit detects the water outlet temperature of the water outlet end of the water pipe 25. When the water outlet temperature at the water outlet end of the water outlet pipeline 25 continuously reaches the preset temperature within the preset time, it indicates that the water outlet temperature of the water heater main unit 20 tends to be stable, so that the control unit disconnects the water outlet end of the thermostatic chamber 41 and the second water inlet end 63 of the water using pipeline 60, and simultaneously connects the water outlet end of the water outlet pipeline 25 and the first water inlet end 61 of the water using pipeline 60, so that the water heater main unit 20 continuously supplies water to the water using pipeline 60 (as shown in fig. 4).
In this way, when the water heater system 100 is switched from the off state to the on state, the water in the thermostatic chamber 41 is heated by the heating unit at the same time when the water heater main unit 20 generates hot water, so that the water outlet speed of the water using terminal is increased, and the temperature of the water output by the water using terminal has high stability.
Referring to fig. 2, when the water heater system 100 is switched from the on state to the temporary water-off state, the control unit controls the water outlet end of the water outlet pipe 25 of the water heater main unit 20 to be disconnected from the first water inlet end 61 of the water using pipe 60, the water outlet end of the thermostatic chamber 41 to be disconnected from the second water inlet end 63 of the water using pipe 60, the water outlet end of the water outlet pipe 25 to be connected with the water inlet end of the thermostatic chamber 41, and the water heater main unit 20 to be in the operating state.
Therefore, no water is delivered to the water using terminal at the water outlet end of the water using pipeline 60 and the water heater main unit 20, the water using terminal temporarily stops supplying water, meanwhile, the water heater main unit 20 keeps running, and the water outlet end of the water outlet pipeline 25 continuously outputs hot water with preset temperature to the constant temperature cavity 41 for storage.
Referring to fig. 3 and 4, when the water heater system 100 is switched from the temporary water-off state to the on state, the control unit controls the water outlet end of the thermostatic chamber 41 and the water outlet end of the water heater main unit 20 to be sequentially connected to the water inlet end of the universal water pipe 60. Thus, when the water heater system 100 is switched from the temporary water-cut-off state to the on state, the water is supplied to the water-using terminal through the thermostatic chamber 41 preferentially, so that the water outlet speed is increased significantly, and the temperature of the water flowing out of the thermostatic chamber 41 is the same as the water outlet temperature in the last on state. After the thermostatic chamber 41 supplies water for a period of time, the water supply to the water heater main machine 20 can be switched to be continuous.
In the water heater system 100, due to the arrangement of the thermostatic device 40, when the water heater system 100 is switched to the temporary water-off state, the hot water generated by the water heater main unit 20 can enter the thermostatic chamber 41 for storage, and after the water heater system 100 is switched to the open state again, the hot water can rapidly flow out of the thermostatic chamber 41, so that the problems of water temperature fluctuation and slow water outlet speed caused by water supply of the water heater main unit 20 are solved, and the use experience of the water heater system 100 is remarkably improved. In addition, because the water heater main unit 20 does not need to be stopped when the water is temporarily stopped, the number of starting and stopping the water heater main unit 20 is reduced, and the service life of the water heater main unit 20 is prolonged.
Referring to fig. 5, fig. 5 is a flow chart illustrating a control method of the water heater system 100 according to an embodiment of the invention. The control method of the water heater system 100 of an embodiment of the present invention includes the steps of:
s110: the operating state of the water heater system 100 is obtained.
Specifically, the control unit obtains an operating state of the water heater system 100, and the water heater system 100 has a temporary water-off state, an off state, and an on state.
S120: when the water heater system 100 is switched from the on state to the temporary water-cut-off state, the water outlet end of the water heater main unit 20 is controlled to be disconnected from the water inlet end of the water using pipeline 60, the water outlet end of the thermostatic chamber 41 of the thermostatic device 40 is controlled to be disconnected from the water inlet end of the water using pipeline 60, and the water outlet end of the water heater main unit is communicated with the water inlet end of the thermostatic chamber 41.
Specifically, after the control unit obtains that the water heater system 100 is switched from the on state to the temporary water-cut-off state, the control unit controls the water outlet end of the water outlet pipe 25 of the water heater main unit 20 to be disconnected from the first water inlet end 61 of the water using pipe 60, the water outlet end of the thermostatic chamber 41 to be disconnected from the second water inlet end 63 of the water using pipe 60, the water outlet end of the water outlet pipe 25 is communicated with the water inlet end of the thermostatic chamber 41, and meanwhile, the water heater main unit 20 is controlled to be in the running state. Therefore, no water is delivered to the water using terminal at the water outlet end of the water using pipeline 60 and the water heater main unit 20, the water using terminal temporarily stops supplying water, meanwhile, the water heater main unit 20 keeps running, and the water outlet end of the water outlet pipeline 25 continuously outputs hot water with preset temperature to the constant temperature cavity 41 for storage.
Further, when the water heater system 100 is in the temporary water-cut state, the control unit controls the operation power of the water heater main unit 20 to be lower than the preset operation power, the water outlet temperature of the water outlet end of the water heater main unit 20 is maintained unchanged, and the water outlet flow is reduced. Thus, when the water heater system 100 is in the temporary water-cut-off state, the water heater main unit 20 is still in the running state without stopping, so that the start-stop frequency of the water heater main unit 20 is reduced, and the service life of the water heater main unit 20 is effectively prolonged.
In some embodiments, the thermostat temperature detection unit can obtain the volume of water in thermostat 41 when water heater system 100 is in a temporary water-off condition. When the volume of the water in the thermostatic chamber 41 is equal to the maximum volume of the thermostatic chamber 41, the control unit controls the water heater main unit 20 to stop and give an alarm, so that the situation that the volume of the water delivered to the thermostatic chamber 41 exceeds the volume of the thermostatic chamber 41 due to the fact that the hot water generated by the water heater main unit 20 is continuously input into the thermostatic chamber 41, and further the water heater system 100 breaks down is avoided.
S130: when the water heater system 100 is switched from the temporary water cut-off state to the on state, the water outlet end of the thermostatic chamber 41 and the water outlet end of the water heater main unit 20 are sequentially connected with the water inlet end of the universal water pipe 60.
Thus, when the water heater system 100 is switched from the temporary water-cut-off state to the on state, water is preferentially supplied to the water using terminal through the thermostatic chamber 41, so that the water outlet speed is obviously improved.
Specifically, step S130 specifically includes the following steps:
s131: when the water heater system 100 is switched from the temporary water-cut-off state to the on state, the water outlet end of the thermostatic chamber 41 is controlled to be connected with the water inlet end of the universal water pipe 60.
Thus, when the control unit obtains that the water heater system 100 is switched from the temporary water-cut-off state to the open state, the control unit firstly controls the water outlet end of the thermostatic chamber 41 to be communicated with the second water inlet end 63 of the water using pipeline 60, so that the thermostatic chamber 41 quickly supplies water to the water using pipeline 60, and the water heater system 100 has a faster water outlet speed. At this time, the water outlet end of the water outlet pipe 25 is still connected to the water inlet end of the thermostatic chamber 41, the water heater main unit 20 returns to the original power operation, and the hot water generated by the water heater main unit 20 continuously flows into the thermostatic chamber 41.
S132: and acquiring the volume of water in the thermostatic chamber 41 and the outlet water temperature of the outlet end of the water heater main unit 20.
Specifically, when the water heater system 100 is switched from the temporary water-cut-off state to the on state, the control unit obtains the volume of water in the thermostatic chamber 41, and obtains the outlet water temperature at the outlet end of the outlet water pipe 25 through the host outlet water temperature detection unit.
S133: when the volume of the water in the thermostatic chamber 41 is equal to the preset volume or the outlet water temperature of the outlet water end of the water heater main unit 20 is not less than the preset temperature within the preset time, the outlet water end of the thermostatic chamber 41 is controlled to be disconnected from the inlet water end of the water using pipeline 60, and the outlet water end of the water heater main unit 20 is communicated with the inlet water end of the water using pipeline 60.
Specifically, when the volume of the water in the thermostatic chamber 41 is equal to the preset volume, the volume of the water in the surface thermostatic chamber 41 reaches the maximum volume of the thermostatic chamber 41, and when the temperature of the water at the water outlet end of the water heater main unit 20 is not less than the preset temperature within the preset time, it indicates that the temperature of the water at the water outlet end of the water heater main unit 20 tends to be stable. When one of the two conditions is met, the control unit controls the water outlet end of the thermostatic chamber 41 to be disconnected from the second water inlet end 63 of the water using pipeline 60, and controls the water outlet end of the water outlet pipeline 25 to be communicated with the first water inlet end 61 of the water using pipeline 60, so that the water supplied to the water using pipeline 60 by the thermostatic chamber 41 is switched to the water supply main unit 20 to supply water to the water using pipeline 60.
In some embodiments, the control method of the water heater system 100 further comprises the steps of:
s140: when the water heater system 100 is switched from the off state to the on state, the thermostatic chamber 41 is heated and the water outlet end of the water heater main unit 20 is controlled to be communicated with the water inlet end of the thermostatic chamber 41.
Specifically, after the control unit obtains that the water heater system 100 is switched from the off state to the on state, the control unit controls the water outlet end of the thermostatic chamber 41 and the second water inlet end 63 of the water using pipeline 60 to be kept disconnected, the water outlet end of the water outlet pipeline 25 of the water heater main unit 20 and the first water inlet end 61 of the water using pipeline 60 are also disconnected from each other, and the water outlet end of the water outlet pipeline 25 and the water inlet end of the thermostatic chamber 41 are connected with each other. At this time, the heating unit heats the water in the thermostatic chamber 41 under the control of the control unit, and the water outlet end of the water heater main body 20 outputs hot water into the thermostatic chamber 41 to be mixed with the water in the thermostatic chamber 41.
S160: the temperature of water in the thermostatic chamber 41 is acquired.
Specifically, the oven temperature detection unit acquires the temperature of water in the oven 41 in real time.
S170: when the temperature of the water in the thermostatic chamber 41 reaches a preset temperature, the water outlet end of the thermostatic chamber 41 is controlled to be connected with the water inlet end of the universal water pipe 60.
Specifically, in the process that the water outlet end of the water heater main unit 20 outputs hot water to the thermostatic chamber 41 to be mixed with water in the thermostatic chamber 41, when the thermostatic chamber temperature detection unit detects that the temperature of the water in the thermostatic chamber 41 reaches a preset temperature, the control unit controls the water outlet end of the thermostatic chamber 41 to be communicated with the second water inlet end 63 of the water using pipeline 60, and the water outlet end of the thermostatic chamber 41 outputs the hot water to the water using pipeline 60, so that hot water is provided for a user.
In this way, since the water in the thermostatic chamber 41 is heated by the heating unit at the same time when the water heater main body 20 generates hot water, the water outlet speed of the water using terminal is increased, and the temperature of the water output by the water using terminal has high stability.
S180: and acquiring the outlet water temperature of the outlet end of the water heater main machine 20.
Specifically, the main unit outlet water temperature detecting unit obtains the outlet water temperature of the outlet end of the water heater main unit 20.
S190: when the water outlet temperature of the water outlet end of the water heater main unit 20 is not less than the preset temperature within the preset time, the water inlet end of the thermostatic chamber 41 and the water outlet end of the water heater main unit 20 are disconnected, and the water outlet end of the water heater main unit 20 is controlled to be connected with the water inlet end of the universal water pipe 60.
Specifically, when the outlet temperature of the outlet end continuously reaches the preset temperature within the preset time, it indicates that the outlet temperature of the water heater main unit 20 tends to be stable, so the control unit disconnects the outlet end of the thermostatic chamber 41 and the second inlet end 63 of the water using pipe 60, and simultaneously connects the outlet end of the outlet pipe 25 and the first inlet end 61 of the water using pipe 60, so that the water heater main unit 20 continuously supplies water to the water using pipe 60.
In this way, when the water heater system 100 is switched from the off state to the on state, the water in the thermostatic chamber 41 is heated by the heating unit at the same time when the water heater main unit 20 generates hot water, so that the water outlet speed of the water using terminal is increased, and the temperature of the water output by the water using terminal has high stability.
It will be appreciated that in the above described embodiment, the maximum volume of the thermostatic chamber can be set by the actual parameters of the water heater system 100 so that the zero cold water demand is met without causing excessive hot water to be stored in the thermostatic chamber 41, resulting in wasted energy.
According to the water heater system 100 and the control method, the thermostat 40 is arranged, so that the water outlet speed is obviously improved, the problem of water temperature fluctuation after water supply is suspended is solved, the starting and stopping times of the water heater main body are reduced (the starting and stopping times can be reduced by 2/3 theoretically), unnecessary main noise is reduced, the user experience is obviously improved, and the service life of the water heater main body 20 is greatly prolonged.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (11)

1. A water heater system, characterized in that the water heater system comprises:
a water heater main unit (20);
the constant temperature device (40) is provided with a constant temperature cavity (41), and the water inlet end of the constant temperature cavity (41) is connected with the water outlet end of the water heater main machine (20); and
a water using pipeline (60), wherein the water inlet end of the water using pipeline (60) is respectively connected with the water outlet end of the water heater main machine (20) and the water outlet end of the thermostatic chamber (41), and the water inlet end of the water using pipeline (60) can be alternatively communicated with the water outlet end of the water heater main machine (20) or the water outlet end of the thermostatic device (40);
wherein the water heater system has a temporary water shut-off condition;
when the water heater system is in the temporary water cut-off state, the water outlet end of the water heater main machine (20) and the water outlet end of the thermostatic chamber (41) are both disconnected with the water inlet end of the water using pipeline (60), and the water outlet end of the water heater main machine (20) is communicated with the water inlet end of the thermostatic chamber (41);
when the water heater system is switched from the temporary water cut-off state to the open state, the water outlet end of the thermostatic cavity (41) and the water outlet end of the water heater main machine (20) are sequentially communicated with the water inlet end of the water using pipeline (60).
2. The water heater system according to claim 1, further comprising a three-way reversing unit (80), wherein the water outlet end of the water heater main body (20) is connected with the water inlet end of the thermostatic chamber (41) and the water inlet end of the water using pipeline (60) through the three-way reversing unit (80).
3. The water heater system according to claim 1, characterized in that said thermostatic device (40) further comprises a heating unit for heating said thermostatic chamber (41).
4. The water heater system according to claim 3, wherein the thermostatic device (40) further comprises a thermostatic chamber temperature detection unit provided in the thermostatic chamber (41) for detecting a temperature of water in the thermostatic chamber (41).
5. The water heater system according to claim 1, further comprising a main unit water outlet temperature detection unit, wherein the main unit water outlet temperature detection unit is arranged at a water outlet end of the main water heater unit (20), and the main unit water outlet temperature detection unit is used for detecting the water outlet temperature of the water outlet end of the main water heater unit (20).
6. A method of controlling a water heater system, comprising the steps of:
acquiring the working state of a water heater system;
when the water heater system is switched from an on state to a temporary water cut-off state, the water outlet end of the water heater main machine (20) is controlled to be disconnected with the water inlet end of the water using pipeline (60), the water outlet end of the thermostatic cavity (41) of the thermostatic device (40) is disconnected with the water inlet end of the water using pipeline (60), and the water outlet end of the water heater main machine is communicated with the water inlet end of the thermostatic cavity (41);
and when the water heater system is switched from the temporary water cut-off state to the opening state, controlling the water outlet end of the thermostatic cavity (41) and the water outlet end of the water heater main machine (20) to be sequentially communicated with the water inlet end of the water using pipeline (60).
7. The control method of the water heater system according to claim 6, characterized in that when the water heater system is switched from the on state to the temporary water-cut-off state, the operation power of the water heater main machine (20) is controlled to be lower than a preset operation power, the water outlet temperature of the water outlet end of the water heater main machine (20) is maintained, and the water outlet flow of the water outlet end is reduced.
8. The method for controlling a water heater system according to claim 6, wherein the step of controlling the water outlet end of the thermostatic chamber (41) and the water outlet end of the water heater main body (20) to sequentially communicate with the water inlet end of the water using pipeline (60) after the water heater system is switched from the temporary water-cut-off state to the open state specifically comprises the following steps:
when the water heater system is switched from the temporary water cut-off state to the opening state, controlling the water outlet end of the thermostatic cavity (41) to be communicated with the water inlet end of the water using pipeline (60);
acquiring the volume of water in the constant-temperature cavity (41) and the water outlet temperature of the water outlet end of the water heater main machine (20);
when the volume of water in the thermostatic chamber (41) is equal to a preset volume, or the water outlet temperature of the water outlet end of the water heater main machine (20) is not less than a preset temperature within a preset time, the water outlet end of the thermostatic chamber (41) is controlled to be disconnected with the water inlet end of the water using pipeline (60), and the water outlet end of the water heater main machine (20) is communicated with the water inlet end of the water using pipeline (60).
9. The control method of a water heater system according to claim 6, further comprising the steps of:
when the water heater system is in the temporary water cut-off state, acquiring the volume of water in the thermostatic chamber (41);
when the volume of water in the thermostatic chamber (41) is equal to the highest volume of the thermostatic chamber (41), the water heater main machine (20) is controlled to stop and an alarm is given out.
10. The control method of a water heater system according to claim 6, further comprising the steps of:
when the water heater system is switched from the off state to the on state, the thermostatic chamber (41) is heated, and the water outlet end of the water heater main machine (20) is controlled to be communicated with the water inlet end of the thermostatic chamber (41);
acquiring the water temperature in the thermostatic chamber (41);
and when the water temperature in the thermostatic chamber (41) reaches a preset temperature, controlling the water outlet end of the thermostatic chamber (41) to be communicated with the water inlet end of the water using pipeline (60).
11. The control method of a water heater system according to claim 10, wherein the step of controlling the water outlet end of the thermostatic chamber (41) to communicate with the water inlet end of the water using pipe (60) after the water temperature in the thermostatic chamber (41) reaches the preset temperature further comprises the following steps:
acquiring the water outlet temperature of the water outlet end of the water heater main machine (20);
when the water outlet temperature of the water outlet end of the water heater main machine (20) is not lower than the preset temperature within the preset time, the water outlet end of the constant temperature cavity (41) is controlled to be disconnected with the water inlet end of the water using pipeline (60), and the water outlet end of the water heater main machine (20) is communicated with the water inlet end of the water using pipeline (60).
CN202010440981.7A 2020-05-22 2020-05-22 Water heater system and control method thereof Pending CN111561777A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2489262Y (en) * 2001-07-20 2002-05-01 宗海燕 Gas fast thermostatic water heater
CN107655198A (en) * 2017-10-13 2018-02-02 扬州工业职业技术学院 Shower water outlet device
US20180172315A1 (en) * 2015-07-20 2018-06-21 Zhaokeng Pan Small thermostatic electric storage water heater for water supply terminal
CN109000377A (en) * 2018-08-09 2018-12-14 广东万家乐燃气具有限公司 A kind of constant temp gas water heater and gas water heater constant temperature control method
CN208936558U (en) * 2018-08-09 2019-06-04 广东万家乐燃气具有限公司 A kind of constant temp gas water heater
CN212362423U (en) * 2020-05-22 2021-01-15 珠海格力电器股份有限公司 Water heater system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2489262Y (en) * 2001-07-20 2002-05-01 宗海燕 Gas fast thermostatic water heater
US20180172315A1 (en) * 2015-07-20 2018-06-21 Zhaokeng Pan Small thermostatic electric storage water heater for water supply terminal
CN107655198A (en) * 2017-10-13 2018-02-02 扬州工业职业技术学院 Shower water outlet device
CN109000377A (en) * 2018-08-09 2018-12-14 广东万家乐燃气具有限公司 A kind of constant temp gas water heater and gas water heater constant temperature control method
CN208936558U (en) * 2018-08-09 2019-06-04 广东万家乐燃气具有限公司 A kind of constant temp gas water heater
CN212362423U (en) * 2020-05-22 2021-01-15 珠海格力电器股份有限公司 Water heater system

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