CN112648738A - Zero-cold-water heater system and control method - Google Patents
Zero-cold-water heater system and control method Download PDFInfo
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- CN112648738A CN112648738A CN201910958742.8A CN201910958742A CN112648738A CN 112648738 A CN112648738 A CN 112648738A CN 201910958742 A CN201910958742 A CN 201910958742A CN 112648738 A CN112648738 A CN 112648738A
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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
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/30—Arrangements for connecting the fluid circuits of solar collectors with each other or with other components, e.g. pipe connections; Fluid distributing means, e.g. headers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
The invention provides a zero-cold-water heater system and a control method, wherein the zero-cold-water heater system comprises a water heater, a pipeline assembly, a detection and control assembly and a water using tail end; the pipeline assembly comprises a water inlet pipe group, a water outlet pipe group and a water return pipe; the water inlet pipe group comprises a main water inlet pipe and an auxiliary water inlet pipe, the auxiliary water inlet pipe is connected with the tail end of water, the main water inlet pipe is connected with the water heater, and a water pump is arranged on the main water inlet pipe; the water outlet pipe group comprises a main water outlet pipe and an auxiliary water outlet pipe, the main water outlet pipe is connected with the water heater, the auxiliary water outlet pipe is connected with the water using end, the detection and control assembly is connected with the water pump, the detection and control assembly is used for detecting the water flow of the main water outlet pipe, the water pump is controlled to be started when the water flow of the main water outlet pipe is larger than or equal to the preset flow, and the water pump is controlled to be stopped when the water flow of the main water outlet pipe is smaller than the. The zero-cold-water heater system provided by the invention can avoid the problem that hot water can be discharged when water consumption points use cold water when the water heater is in an open state.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a zero-cold-water heater system and a control method.
Background
The water heater is a device which can increase the temperature of cold water into hot water in a certain time by various physical principles. According to different principles, the water heater can be divided into an electric water heater, a gas water heater, a solar water heater, a magnetic water heater, an air energy water heater, a heating water heater and the like.
In the installation of the existing water heater, a cold water inlet pipe of the water heater is connected with a tap water pipeline, a hot water outlet pipe of the water heater is connected with a water consumption point, and the water consumption point is also connected with the tap water pipeline. The hot water outlet pipe of the water heater is connected with a tap water pipe through a return pipe, the zero cold water function of the water heater is started, and when hot water is used, unused hot water in the hot water outlet pipe of the water heater is pumped back to the water heater through a water pump in the water heater.
However, the zero cold water function of the water heater is always started, the water pump continuously pumps unused hot water in a hot water outlet pipe of the water heater back to the water heater, hot water in the hot water outlet pipe of the water heater also flows into a tap water pipeline through a water return pipe, and hot water is discharged when cold water is used at a water consumption point, so that the use of the cold water is influenced.
Disclosure of Invention
The invention provides a zero-cold-water heater system and a control method, and solves the problem that when the zero-cold-water function of a water heater is continuously started in the prior art, hot water is produced when water is used at a water using point when cold water is used, and the use of the cold water is influenced.
In a first aspect, the present invention provides a zero-cold water heater system comprising a water heater, a pipe assembly, a detection and control assembly, and a water use end;
the pipeline assembly comprises a water inlet pipe group, a water outlet pipe group and a water return pipe;
the water inlet pipe group comprises a main water inlet pipe and an auxiliary water inlet pipe connected with the main water inlet pipe, the auxiliary water inlet pipe is connected with a first end of the tail end of water, the main water inlet pipe is connected with the water heater, a water pump is arranged on the main water inlet pipe, and the main water inlet pipe and the auxiliary water inlet pipe are both used for being connected with a water supply pipeline;
the water outlet pipe group comprises a main water outlet pipe and an auxiliary water outlet pipe connected with the main water outlet pipe, the main water outlet pipe is connected with the water heater, the auxiliary water outlet pipe is connected with a second end at the tail end of water, the detection and control assembly is positioned on the main water outlet pipe and connected with the water pump, the detection and control assembly is used for detecting the water flow of the main water outlet pipe, the water pump is controlled to be started when the water flow of the main water outlet pipe is larger than or equal to a preset flow, and the water pump is controlled to be stopped when the water flow of the main water outlet pipe is;
the return pipe is connected between the auxiliary water inlet pipe and the auxiliary water outlet pipe, and the water flow direction in the return pipe is from the auxiliary water inlet pipe to the auxiliary water outlet pipe.
As an optional mode, in the zero-cold-water heater system provided by the invention, the detection and control assembly comprises a detection part and a controller connected with the detection part, the controller is connected with the water pump, the detection part is used for detecting the water flow of the main water outlet pipe, the controller is used for controlling the water pump to be started when the water flow of the main water outlet pipe detected by the detection part is greater than or equal to a preset flow within a preset time, and controlling the water pump to be stopped when the water flow of the main water outlet pipe detected by the detection part is less than the preset flow, wherein the preset time is less than or equal to 10 seconds.
As an optional mode, in the zero-cold-water heater system provided by the invention, the detection piece is a water flow sensor.
As an optional mode, the zero-cold-water heater system provided by the invention further comprises a first one-way valve, the first one-way valve is positioned on the water return pipe, and the flow direction of the first one-way valve is from the auxiliary water inlet pipe to the auxiliary water outlet pipe.
As an alternative, the present invention provides a zero-cold-water heater system, wherein the controller is located on the water heater.
As an optional mode, in the zero-cold-water heater system provided by the invention, the water end is a faucet, or the water end comprises a water mixing valve and a shower head, the first end of the water mixing valve is connected with the auxiliary water inlet pipe, the second end of the water mixing valve is connected with the auxiliary water outlet pipe, and the third end of the water mixing valve is connected with the shower head.
As an optional mode, the number of the water using tail ends, the number of the auxiliary water inlet pipes and the number of the auxiliary water outlet pipes are equal and are at least two, each water using tail end is connected with one auxiliary water inlet pipe and one auxiliary water outlet pipe, and the water return pipe is connected between the auxiliary water inlet pipe and the auxiliary water outlet pipe which are connected with the farthest water using tail ends.
In a second aspect, the present invention further provides a control method of the zero-cold-water heater system, where the method includes:
the detection and control component detects the water flow of the main water outlet pipe;
when the water flow of the main water outlet pipe is larger than or equal to the preset flow, the detection and control assembly controls the water pump to be started;
when the water flow of the main water outlet pipe is smaller than the preset flow, the detection and control assembly controls the water pump to be closed.
As an optional mode, in the control method of the zero-cold-water heater system provided by the invention, the detection and control assembly comprises a detection piece and a controller connected with the detection piece;
the method comprises the following steps:
the detection piece detects the water flow of the main water outlet pipe;
in the preset time, when the water flow of the main water outlet pipe detected by the detection piece is larger than or equal to the preset flow, the controller controls the water pump to be started;
and in the preset time, when the water flow of the main water outlet pipe detected by the detection piece is smaller than the preset flow, the controller controls the water pump to be closed, wherein the preset time is less than or equal to 10 seconds.
As an optional mode, in the control method of the zero-cold-water heater system provided by the present invention, the detecting element detects the water flow rate of the main water outlet pipe, and the method includes:
the water flow sensor detects the water flow of the main water outlet pipe.
According to the zero-cold-water heater system and the control method, the detection and control assembly is arranged in the zero-cold-water heater system to control the opening and closing states of the water pump. When the water flow in the main water outlet pipe detected by the detection and control assembly is larger than or equal to the preset flow, the water consumption point is indicated to have the requirement of zero cold water, and at the moment, the detection and control assembly controls the water pump to be started to perform water circulation. When discharge in the main outlet pipe that detects and control assembly detected is less than when predetermineeing the flow, show that the water spot does not have the demand of zero cold water, at this moment, detect and control assembly control water pump and close, can't carry out hydrologic cycle, the water heater keeps warm to the water in the water heater, the zero cold water cooling of reserving at main outlet pipe and assistance outlet pipe, let in to main inlet tube zero cold water for the zero cold water after the cooling through wet return and assistance inlet tube, when the water spot has the demand of zero cold water, the terminal second end of water does not have zero cold water outflow. The problem of among the prior art, when the zero cold water function of water heater was continuously opened, the point of using water goes out can the hot water when using cold water, influences the use of cold water is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a zero-cold-water heater system according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a zero-cold-water heater system according to a second embodiment of the present invention;
fig. 3 is a flowchart of a control method of a zero-cold-water heater system according to a third embodiment of the present invention;
fig. 4 is a flowchart of a control method of a zero-cold-water heater system according to a fourth embodiment of the present invention.
In the drawings: 10-a water heater; 20-water end; 30-a water inlet pipe group; 31-a main water inlet pipe; 32-auxiliary water inlet pipe; 40-a water outlet pipe group; 41-main water outlet pipe; 42-auxiliary water outlet pipe; 50-a water return pipe; 51-a first one-way valve; 60-a water pump; 70-water supply line; 71-a second one-way valve; 80-detecting element.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it should be noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, an indirect connection through intervening media, a connection between two elements, or an interaction between two elements. 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 installation of the existing water heater, a cold water inlet pipe of the water heater is connected with a tap water pipeline, a hot water outlet pipe of the water heater is connected with a water consumption point, and the water consumption point is also connected with the tap water pipeline. The hot water outlet pipe of the water heater is connected with a tap water pipe through a return pipe, the zero cold water function of the water heater is started, and when hot water is used, unused hot water in the hot water outlet pipe of the water heater is pumped back to the water heater through a water pump in the water heater.
Based on the above problems, the invention provides a zero-cold-water heater system and a control method thereof, which control the on and off states of a water pump by arranging a detection and control assembly. When the water flow in the main water outlet pipe detected by the detection and control assembly is larger than or equal to the preset flow, the water consumption point is indicated to have the requirement of zero cold water, and at the moment, the detection and control assembly controls the water pump to be started to perform water circulation. When discharge in the main outlet pipe that detects and control assembly detected is less than when predetermineeing the flow, show that the water consumption point does not have the demand of zero cold water, at this moment, detect and control assembly control water pump and close, can't carry out hydrologic cycle, the water heater keeps warm to the water in the water heater, the zero cold water natural cooling of reserving at main outlet pipe and assistance outlet pipe, let in to main inlet tube zero cold water (also can be called cold water) after the cooling through wet return and assistance inlet tube, when the water consumption point has the demand of zero cold water, the terminal second end of water does not have zero cold water outflow. The problem of among the prior art, when the zero cold water function of water heater was continuously opened, the point of using water goes out can the hot water when using cold water, influences the use of cold water is solved.
The zero-cold-water heater system and the control method provided by the embodiment of the invention are described in detail with reference to specific embodiments as follows.
Example one
Fig. 1 is a schematic structural diagram of a zero-cold-water heater system according to a first embodiment of the present invention. Referring to fig. 1, the present invention provides a zero cold water heater system including a water heater 10, a plumbing assembly, a sensing and control assembly, and a water use tip 20.
The piping assembly includes a water inlet pipe group 30, a water outlet pipe group 40, and a water return pipe 50.
The water inlet pipe group 30 comprises a main water inlet pipe 31 and an auxiliary water inlet pipe 32 connected with the main water inlet pipe 31, the auxiliary water inlet pipe 32 is connected with a first end of the water using end 20, the main water inlet pipe 31 is connected with the water heater 10, a water pump 60 is arranged on the main water inlet pipe 31, and the main water inlet pipe 31 and the auxiliary water inlet pipe 32 are both used for being connected with a water supply pipeline 70.
The water outlet pipe group 40 comprises a main water outlet pipe 41 and an auxiliary water outlet pipe 42 connected with the main water outlet pipe 41, the main water outlet pipe 41 is connected with the water heater 10, the auxiliary water outlet pipe 42 is connected with the second end of the water end 20, the detection and control component is positioned on the main water outlet pipe 41 and connected with the water pump 60, the detection and control component is used for detecting the water flow of the main water outlet pipe 41, when the water flow of the main water outlet pipe 41 is larger than or equal to the preset flow, the water pump 60 is controlled to be started, and when the water flow of the main water outlet pipe 41 is smaller than the preset flow, the water pump.
The preset flow can be set according to an empirical value, and is usually greater than or equal to the minimum water flow corresponding to zero cold water outflow at the water outlet end of the detection and control component detected by the detection and control component. For example, when the preset flow rate is 10 ml/s, the outlet end of the detection and control assembly starts to flow out zero cold water, and when the detection and control assembly detects that the flow rate of water at the outlet end of the detection and control assembly is 8 ml/s, the water pump 60 is controlled to be turned off. The water outlet end of the detection and control assembly continues to detect the water flow of the zero cold water, and when the detection and control assembly detects that the water flow of the water outlet end of the detection and control assembly is 10 milliliters per second, the water pump 60 is controlled to be started.
The return pipe 50 is connected between the auxiliary inlet pipe 32 and the auxiliary outlet pipe 42, and the flow direction of water in the return pipe 50 is from the auxiliary inlet pipe 32 to the auxiliary outlet pipe 42.
Wherein, cold water from a water source (such as tap water) is introduced into the water heater 10 through the pipe assembly, the cold water is heated into zero cold water through the water heater 10, when the water consumption point has a demand for the zero cold water, the zero cold water is introduced into the water consumption end 20 through the pipe for the use of the water consumption point, and the zero cold water which is not used in the water consumption point is pumped into the water heater 10 through the water pump 60 for the water circulation.
Specifically, the main water inlet pipe 31 and the auxiliary water inlet pipe 32 are both used for being connected with the water supply pipeline 70, the water supply pipeline 70 is provided with a second one-way valve 71, and the circulation direction of the second one-way valve 71 is from a water source to the main water inlet pipe 31 or the auxiliary water inlet pipe 32.
The water supply line 70 may be in communication with a water source and the boiler 10 is connected to the main inlet pipe 31 to pass cold water from the water source through the main inlet pipe 31 into the boiler 10.
The water heater 10 is used for heating the introduced cold water into zero-cold water and preserving the heat of the zero-cold water.
Wherein, the main water inlet pipe 31 can be partially positioned in the water heater 10, and the water pump 60 positioned on the main water inlet pipe 31 can be positioned in the water heater 10.
When the water consumption point has a demand for cold water, i.e., the first end (i.e., cold water end) of the water consumption end 20 is communicated with the auxiliary water inlet pipe 32, the cold water of the water source is introduced into the auxiliary water inlet pipe 32 through the water supply pipeline 70, and the cold water is introduced into the first end of the water consumption end 20 through the auxiliary water inlet pipe 32 to be used by the water consumption point.
When the water consumption point has a demand for zero-cold water, i.e. the second end (i.e. hot water end) of the water consumption tail end 20 is communicated with the auxiliary water outlet pipe 42, the zero-cold water in the water heater 10 is introduced into the auxiliary water outlet pipe 42 through the main water outlet pipe 41, and the zero-cold water is introduced into the second end of the water consumption tail end 20 through the auxiliary water outlet pipe 42 so as to be used by the water consumption point. The unused zero cold water of the water consumption point in the auxiliary water outlet pipe 42 is pumped into the water return pipe 50 through the water pump 60, and then is introduced into the main water inlet pipe 31 through the auxiliary water inlet pipe 32 until being pumped into the water heater 10.
Wherein the on and off states of the water pump 60 are controlled by the sensing and control assembly. When the water consumption point has a demand for zero cold water, the second end of the water consumption tail end 20 is opened, at this time, the zero cold water in the main water outlet pipe 41 starts to flow, the detection and control component can detect the water flow in the main water outlet pipe 41, and when the water flow in the main water outlet pipe 41 detected by the detection and control component is greater than or equal to a preset flow, the water consumption point has the demand for the zero cold water. At this time, the detection and control component controls the water pump 60 to be turned on to circulate water, and the water heater 10 continuously heats the water in the water heater 10 so that the water in the water heater 10 reaches the set temperature.
When the discharge in the main outlet pipe 41 that detects and the control module detects is less than when predetermineeing the flow, show that the water consumption point does not have the demand of zero cold water, at this moment, detect and control module control water pump 60 and close, can't carry out hydrologic cycle, water heater 10 keeps warm to the water in the water heater 10, the zero cold water natural cooling of reserving in main outlet pipe 41 and assistance outlet pipe 42 lets in to main inlet tube 31 zero cold water (also can be called cold water) after the cooling through wet return 50 and assistance inlet tube 32, when the water consumption point has the demand of cold water, the second end of the terminal 20 of water consumption does not have zero cold water outflow. The problem of among the prior art, when the zero cold water function of water heater 10 was continuously opened, the point of using water when using cold water the water goes out can hot water, influences the use of cold water is solved.
Meanwhile, when the zero cold water function of the water heater is started, the detection and control component adjusts the on and off states of the water pump 60 according to the water demand of the water consumption point, the water pump 60 is prevented from being always in the on state, the heating function of the water heater 10 is prevented from being always in the on state, the power consumption of the water heater 10 is reduced, and the cost is reduced.
The water heater 10 may be an electric water heater, a gas water heater, a solar water heater, a magnetic water heater, an air energy water heater, or a heating water heater.
The water heater 10 is used for heating cold water introduced into the water heater 10, and a heating temperature of the cold water can be set on the water heater 10, so that the cold water introduced into the water heater 10 is heated to the set temperature, and the cold water introduced into the water heater 10 becomes zero cold water or hot water. Wherein, the heating temperature of the water heater 10 can be set according to the requirement of the user.
In practice, if the main outlet pipe 41, the auxiliary outlet pipe 42 or the water using end 20 has poor sealing performance, the zero cold water leaks for a long time, even when the zero cold water demand is not used, the water flow in the main outlet pipe 41 is greater than or equal to the preset flow, the detection and control component can generate the requirement that the water using point is judged to have the zero cold water by mistake, and the water pump 60 is controlled to be started.
In order to avoid the above situation, in the zero-cold-water heater system according to the embodiment of the present invention, the detecting and controlling component includes a detecting element 80 and a controller (not shown in the figure) connected to the detecting element 80, the controller is connected to the water pump 60, the detecting element 80 is configured to detect the water flow rate of the main water outlet pipe 41, the controller is configured to control the water pump 60 to be turned on when the water flow rate of the main water outlet pipe 41 detected by the detecting element 80 is greater than or equal to a preset flow rate within a preset time, and control the water pump 60 to be turned off when the water flow rate of the main water outlet pipe 41 detected by the detecting element 80 is less than the preset flow rate, where.
Specifically, a timer is arranged at a second end (namely, a hot water end) of the water consumption end 20, the timer is connected with the controller, when a water consumption point has a demand for using zero cold water, the water consumption end 20 is pushed, the second end (namely, the hot water end) of the water consumption end 20 is communicated with the auxiliary water outlet pipe 42, the timer is started to start timing, the water flow on the main water outlet pipe 41 changes, the detection part 80 detects the water flow of the main water outlet pipe 41, when the time of the timer is longer than 10 seconds and the water flow of the main water outlet pipe 41 detected by the detection part 80 is larger than or equal to a preset flow, the water pump 60 is controlled to be started, and when the water flow of the main water outlet pipe 41 detected by the detection part 80 is smaller than the preset flow.
The number of times that the water using end 20 is pushed and the second end (i.e., the hot water end) of the water using end 20 is communicated with the auxiliary water outlet pipe 42 is not limited, and may be one, two, or more than two. The second end (i.e., hot water end) of the water usage end 20 is not communicated with the auxiliary water outlet pipe 42, the timer is turned off, and the timer is automatically cleared.
In the zero-cold-water heater system provided by the embodiment of the invention, the controller controls the water pump 60 to be started when the water flow of the main water outlet pipe 41 detected by the detection part 80 is greater than or equal to the preset flow within the preset time, and controls the water pump 60 to be stopped when the water flow of the main water outlet pipe 41 detected by the detection part 80 is less than the preset flow, wherein the preset time is less than or equal to 10 seconds. When zero cold water leakage is avoided, even when no zero cold water demand exists, the water flow in the main water outlet pipe 41 is larger than or equal to the preset flow, the detection and control assembly generates the requirement that the water consumption point is judged to have zero cold water by mistake, and the water pump 60 is controlled to be started.
Optionally, the detecting member 80 is a water flow sensor. The water flow sensor has sensitive reflection, long service life, safety and reliability.
Optionally, the zero-cold-water heater system provided in the embodiment of the present invention further includes a first check valve 51, the first check valve 51 is located on the water return pipe 50, and a flow direction of the first check valve 51 is from the auxiliary water inlet pipe to the auxiliary water outlet pipe.
Specifically, the water flow direction in the water return pipe 50 is from the auxiliary water inlet pipe 32 to the auxiliary water outlet pipe 42, and therefore, the first check valve 51 is disposed on the water return pipe 50, and the flow direction of the first check valve 51 is set to the auxiliary water inlet pipe 32 to the auxiliary water outlet pipe 42, so as to prevent the water flow in the water supply pipe 70 from flowing to the auxiliary water outlet pipe 42.
In a specific implementation, the controller of the zero-cold-water heater system provided by the embodiment of the invention is located on the water heater 10. Specifically, the controller may be disposed on the housing of the water heater 10, and the controller may also be disposed within the water heater 10. Optionally, the controller may also be a main controller inside the water heater 10, and the controller may also be different from the main controller, and the controller is connected to the main controller.
The structure of the water consuming tip 20 may vary according to different needs. Further, in the zero-cold-water heater system provided by the embodiment of the present invention, the water end 20 is a faucet, or the water end 20 includes a mixing valve and a shower head, a first end of the mixing valve is connected to the auxiliary water inlet pipe 32, a second end of the mixing valve is connected to the auxiliary water outlet pipe 42, and a third end of the mixing valve is connected to the shower head.
In this embodiment, the zero-cold-water heater system includes a water heater, a pipe assembly, a detection and control assembly, and a water-using end; the pipeline assembly comprises a water inlet pipe group, a water outlet pipe group and a water return pipe; the water inlet pipe group comprises a main water inlet pipe and an auxiliary water inlet pipe connected with the main water inlet pipe, the auxiliary water inlet pipe is connected with a first end of the tail end of water, the main water inlet pipe is connected with the water heater, a water pump is arranged on the main water inlet pipe, and the main water inlet pipe and the auxiliary water inlet pipe are both used for being connected with a water supply pipeline; the water outlet pipe group comprises a main water outlet pipe and an auxiliary water outlet pipe connected with the main water outlet pipe, the main water outlet pipe is connected with the water heater, the auxiliary water outlet pipe is connected with a second end at the tail end of water, the detection and control assembly is located on the main water outlet pipe and connected with the water pump, the detection and control assembly is used for detecting the water flow of the main water outlet pipe, the water pump is controlled to be started when the water flow of the main water outlet pipe is larger than or equal to the preset flow, and the water pump is controlled to be stopped when the water flow of the main water outlet pipe is.
Therefore, the detection and control assembly is arranged on the main water outlet pipe of the water heater, and whether the water consumption point has the requirement of zero cold water can be judged. Specifically, when the water flow in the main water outlet pipe detected by the detection and control component is greater than or equal to the preset flow, the water consumption point is indicated to have the requirement of using zero cold water; when the water flow in the main water outlet pipe detected by the detection and control component is smaller than the preset flow, the water consumption point does not have the requirement of zero cold water, and therefore, the zero cold water heater system can correspondingly control the water pump to be switched on or switched off, so that the water supply point is enabled to feed hot water (zero cold water) or stop feeding hot water. Therefore, when zero cold water is needed, no cooling water is left in the hot water pipeline of the water consumption point, and hot water can be directly supplied; when the water consumption point has a cold water demand, the water supply pipeline can directly supply cold water correspondingly, and hot water does not flow out. Thereby the cold water and the hot water user demand of water supply point have been considered, user experience has been improved.
Example two
Fig. 2 is a schematic structural diagram of a zero-cold-water heater system according to a second embodiment of the present invention. Referring to fig. 2, on the basis of the first embodiment, the zero-cold-water heater system provided by the embodiment of the invention has the same number of at least two water using terminals 20, the auxiliary water inlet pipes 32 and the auxiliary water outlet pipes 42, each water using terminal 20 is connected with one auxiliary water inlet pipe 32 and one auxiliary water outlet pipe 42, and the water return pipe 50 is connected between the auxiliary water inlet pipe 32 and the auxiliary water outlet pipe 42 connected with the farthest water using terminal 20.
Specifically, the water heater 10 can be used with multiple water usage points, and the water heater 10 can use zero cold water with multiple instant water terminals 20. Illustratively, the water heater 10 may be an electric water heater for home use, and the water end 20 may be a kitchen faucet, a bathroom faucet, a shower head for a bathroom, a faucet for a balcony, and the like.
By providing a plurality of auxiliary inlet pipes 32 and auxiliary outlet pipes 42. Each water end 20 is connected with an auxiliary water inlet pipe 32 and an auxiliary water outlet pipe 42, each auxiliary water inlet pipe 32 is connected with the main water inlet pipe 31, each auxiliary water outlet pipe 42 is connected with the main water outlet pipe 41, and the water return pipe 50 is connected between the auxiliary water inlet pipe 32 and the auxiliary water outlet pipe 42 which are connected with the farthest water end 20.
In the zero-cold-water heater system provided by the embodiment of the invention, the water heater 10 can be used by a plurality of water consumption points, wherein zero-cold water of the water heater 10 is respectively shunted to different auxiliary water outlet pipes 42 through one main water outlet pipe 41 and is used by the plurality of water consumption points through the different auxiliary water outlet pipes 42.
The detection member 80 is located on the main water outlet pipe 41, and when two or more water consumption points have zero cold water demand, the zero cold water flows out through the same main water outlet pipe 41. Therefore, it is possible to determine whether the water consumption point has the requirement of zero cold water by detecting the water flow rate on the main water outlet pipe 41.
The following are embodiments of the method of the present invention that may be used to perform embodiments of the method of the present invention. For details which are not disclosed in the method embodiments of the invention, reference is made to the embodiments of the apparatus of the invention.
EXAMPLE III
Fig. 3 is a flowchart of a control method of a zero-cold-water heater system according to a third embodiment of the present invention. Referring to fig. 3, an embodiment of the present invention provides a control method for a zero-cold-water heater system, and the zero-cold-water heater system provided in the first embodiment or the second embodiment is adopted, where specific structures, functions, and operating principles of the zero-cold-water heater system have been described in detail in the foregoing embodiments, and are not described again here.
The embodiment of the invention provides a control method of a zero-cold-water heater system, which comprises the following steps:
s101, detecting the water flow of the main water outlet pipe by the detection and control assembly.
Specifically, when the water consumption point has a demand for zero cold water, the second end of the water consumption end 20 is opened, and at this time, the zero cold water in the main water outlet pipe 41 starts to flow, and the detection and control component can detect the water flow in the main water outlet pipe 41.
S102, when the water flow of the main water outlet pipe is larger than or equal to the preset flow, the detection and control assembly controls the water pump to be started.
Specifically, when the water flow rate in the main water outlet pipe 41 detected by the detection and control component is greater than or equal to the preset flow rate, it indicates that the water consumption point has a demand for zero cold water, at this time, the detection and control component controls the water pump 60 to be turned on to perform water circulation, and the water heater 10 continuously heats the water in the water heater 10, so that the water in the water heater 10 reaches the set temperature.
S103, when the water flow of the main water outlet pipe is smaller than the preset flow, the detection and control assembly controls the water pump to be closed.
Specifically, when the discharge in the main outlet pipe 41 that detects and the control module detected is less than when predetermineeing the flow, show that the water consumption point does not have the demand of zero cold water, at this moment, detect and the control module control water pump 60 is closed, can't carry out hydrologic cycle, water heater 10 keeps warm to the water in the water heater 10, the zero cold water cooling of reserving in main outlet pipe 41 and assistance outlet pipe 42 lets in to main inlet tube 31 zero cold water for the cooling through wet return 50 and assistance inlet tube 32, when the water consumption point has the demand of zero cold water, the second end of the terminal 20 of water consumption does not have zero cold water and flows out.
According to the control method of the zero-cold-water heater system provided by the embodiment of the invention, the on and off states of the water pump are controlled by the detection and control assembly. When discharge in the main outlet pipe that detects and control assembly detected is less than when predetermineeing the flow, show that the water spot does not have the demand of zero cold water, at this moment, detect and control assembly control water pump and close, can't carry out hydrologic cycle, the water heater keeps warm to the water in the water heater, the zero cold water cooling of reserving at main outlet pipe and assistance outlet pipe, let in to main inlet tube zero cold water for the zero cold water after the cooling through wet return and assistance inlet tube, when the water spot has the demand of zero cold water, the terminal second end of water does not have zero cold water outflow. The problem of among the prior art, when the zero cold water function of water heater was continuously opened, the point of using water goes out can the hot water when using cold water, influences the use of cold water is solved.
Example four
Fig. 4 is a flowchart of a control method of a zero-cold-water heater system according to a fourth embodiment of the present invention. Referring to fig. 4, in the method for controlling a zero-cold water heater system according to an embodiment of the present invention, with the zero-cold water heater system according to the first embodiment or the second embodiment, the detection and control component includes a detection element 80 and a controller connected to the detection element 80. The specific structure, function and operation principle of the zero-cold-water heater system have been described in detail in the foregoing embodiments, and are not described herein again.
The control method of the zero-cold-water heater system provided by the embodiment of the invention comprises the following steps:
s201, detecting the water flow of the main water outlet pipe by a detecting piece.
Wherein, detect and the control assembly including detection piece 80 and with the controller that detection piece 80 is connected, the controller is connected with water pump 60, detection piece 80 is used for detecting the discharge of main outlet pipe 41. The sensing member 80 may be a water flow sensor.
S202, in the preset time, when the water flow of the main water outlet pipe detected by the detection piece is larger than or equal to the preset flow, the controller controls the water pump to be started.
Specifically, in a preset time, when the water flow rate of the main water outlet pipe 41 detected by the detection part 80 is greater than or equal to a preset flow rate, it indicates that the water consumption point has a demand for zero-cold water, and the water pump 60 is controlled to be turned on. Wherein the preset time is less than or equal to 10 seconds.
S203, in the preset time, when the water flow of the main water outlet pipe detected by the detection piece is smaller than the preset flow, the controller controls the water pump to be closed.
Specifically, when the water flow rate of the main water outlet pipe 41 detected by the detecting element 80 is less than the preset flow rate within the preset time (the preset time may be less than or equal to 10 seconds), it indicates that the water consumption point does not use zero cold water, and the water pump 60 is controlled to be turned off.
Optionally, a timer is disposed at a second end (i.e., a hot water end) of the water consumption end 20, the timer is connected to the controller, when a water consumption point has a demand for using zero cold water, the water consumption end 20 is pushed, the second end (i.e., the hot water end) of the water consumption end 20 is communicated with the auxiliary water outlet pipe 42, the timer is started to start timing, water flow on the main water outlet pipe 41 changes, the detecting part 80 detects water flow of the main water outlet pipe 41, when time of the timer is greater than 10 seconds and the water flow of the main water outlet pipe 41 detected by the detecting part 80 is greater than or equal to a preset flow, the water pump 60 is controlled to be started, and when the water flow of the main water outlet pipe 41 detected by the detecting part 80 is less than the preset.
In the control method of the zero-cold-water heater system provided by the embodiment of the invention, the controller controls the water pump 60 to be started when the water flow of the main water outlet pipe 41 detected by the detection part 80 is greater than or equal to the preset flow within the preset time, and controls the water pump 60 to be stopped when the water flow of the main water outlet pipe 41 detected by the detection part 80 is less than the preset flow, wherein the preset time is less than or equal to 10 seconds.
The control method of the zero-cold-water heater system provided by the embodiment of the invention can avoid that when zero cold water leaks, even when no zero cold water is required, the water flow in the main water outlet pipe is larger than or equal to the preset flow, the detection and control component generates the requirement that the water using point is judged to have zero cold water by mistake, and the water pump is controlled to be started.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically stated otherwise.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A zero-cold water heater system is characterized by comprising a water heater, a pipeline assembly, a detection and control assembly and a water using tail end;
the pipeline assembly comprises a water inlet pipe group, a water outlet pipe group and a water return pipe;
the water inlet pipe group comprises a main water inlet pipe and an auxiliary water inlet pipe connected with the main water inlet pipe, the auxiliary water inlet pipe is connected with a first end of the tail end of the water, the main water inlet pipe is connected with the water heater, a water pump is arranged on the main water inlet pipe, and the main water inlet pipe and the auxiliary water inlet pipe are both used for being connected with a water supply pipeline;
the water outlet pipe group comprises a main water outlet pipe and an auxiliary water outlet pipe connected with the main water outlet pipe, the main water outlet pipe is connected with the water heater, the auxiliary water outlet pipe is connected with a second end at the tail end of the water, the detection and control assembly is positioned on the main water outlet pipe and connected with the water pump, the detection and control assembly is used for detecting the water flow of the main water outlet pipe, controlling the water pump to be started when the water flow of the main water outlet pipe is larger than or equal to a preset flow, and controlling the water pump to be stopped when the water flow of the main water outlet pipe is smaller than the preset flow;
the wet return is connected assist the inlet tube with assist between the outlet pipe, just rivers direction in the wet return is for following assist the inlet tube extremely assist the outlet pipe.
2. The zero-cold water heater system according to claim 1, wherein the detection and control assembly comprises a detection piece and a controller connected with the detection piece, the controller is connected with the water pump, the detection piece is used for detecting the water flow of the main water outlet pipe, the controller is used for controlling the water pump to be turned on when the water flow of the main water outlet pipe detected by the detection piece is greater than or equal to a preset flow within a preset time, and controlling the water pump to be turned off when the water flow of the main water outlet pipe detected by the detection piece is smaller than the preset flow, wherein the preset time is smaller than or equal to 10 seconds.
3. The zero cold water heater system of claim 2, wherein the detection member is a water flow sensor.
4. The zero-cold water heater system according to claim 1, further comprising a first one-way valve located on the return pipe, the first one-way valve having a flow direction from the auxiliary inlet pipe to the auxiliary outlet pipe.
5. The zero cold water heater system of claim 2, wherein the controller is located on the water heater.
6. The zero-cold-water heater system according to claim 1, wherein the water end is a faucet, or the water end comprises a mixing valve and a shower head, a first end of the mixing valve is connected with the auxiliary water inlet pipe, a second end of the mixing valve is connected with the auxiliary water outlet pipe, and a third end of the mixing valve is connected with the shower head.
7. A zero cold water heater system according to any one of claims 1 to 6, wherein said water use terminals, said auxiliary water inlet pipes and said auxiliary water outlet pipes are equal in number and at least two, each of said water use terminals is connected to one of said auxiliary water inlet pipes and one of said auxiliary water outlet pipes, and said water return pipe is connected between said auxiliary water inlet pipe and said auxiliary water outlet pipe connected to said water use terminal located farthest away.
8. A method of controlling a zero cold water heater system according to any one of claims 1 to 7, the method comprising:
the detection and control component detects the water flow of the main water outlet pipe;
when the water flow of the main water outlet pipe is larger than or equal to the preset flow, the detection and control assembly controls the water pump to be started;
and when the water flow of the main water outlet pipe is smaller than the preset flow, the detection and control assembly controls the water pump to be closed.
9. The method of controlling a zero cold water heater system of claim 8, wherein the sensing and control assembly includes a sensing member and a controller connected to the sensing member;
the method comprises the following steps:
the detection piece detects the water flow of the main water outlet pipe;
in a preset time, when the water flow of the main water outlet pipe detected by the detection part is greater than or equal to a preset flow, the controller controls the water pump to be started;
and in a preset time, when the water flow of the main water outlet pipe detected by the detection piece is smaller than the preset flow, the controller controls the water pump to be closed, wherein the preset time is less than or equal to 10 seconds.
10. The method of controlling a zero cold water heater system of claim 9, wherein said sensing member senses the flow rate of water from said main outlet pipe, comprising:
the water flow sensor detects the water flow of the main water outlet pipe.
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| BE901710A (en) * | 1984-02-14 | 1985-05-29 | Vaillant Joh Gmbh & Co | ASSEMBLY ADJUSTING THE DISTRIBUTION OF HEAT FROM A SOURCE HEATED BY A FUEL. |
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