CN113418017B - Zero-cold-water supply system and method - Google Patents

Zero-cold-water supply system and method Download PDF

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CN113418017B
CN113418017B CN202110779494.8A CN202110779494A CN113418017B CN 113418017 B CN113418017 B CN 113418017B CN 202110779494 A CN202110779494 A CN 202110779494A CN 113418017 B CN113418017 B CN 113418017B
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water
cold
cold water
hole
zero
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CN113418017A (en
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张芬
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/04Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
    • F16K3/06Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/60Handles
    • F16K31/605Handles for single handle mixing valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00Domestic hot-water supply systems
    • F24D17/0094Recovering of cold water
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • F24D19/10Arrangement or mounting of control or safety devices
    • F24D19/1006Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00Components of central heating installations excluding heat sources
    • F24D2220/02Fluid distribution means
    • F24D2220/0235Three-way-valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Multiple-Way Valves (AREA)
  • Domestic Plumbing Installations (AREA)

Abstract

The invention provides a zero-cold-water supply system and a method, the system comprises a water tap, a water heater, a cold water pipe, a hot water pipe and a zero-cold-water control assembly, wherein a ceramic wafer mixing valve core is arranged in the water tap, the zero-cold-water control assembly comprises a controller, an overflow water pump, a water inlet, a first inlet and a second inlet, the water inlet is used for accessing municipal cold water, the other end of the cold water pipe is connected with the first inlet and the second outlet of the zero-cold-water control assembly, the water inlet of the water heater is connected with the second inlet and the second outlet of the zero-cold-water control assembly, and the controller is used for controlling the water heater and the overflow water pump to act to heat cold water in the cold water pipe and then input the cold water into the hot water pipe when the hot water pipe and the cold water pipe are communicated through the ceramic wafer mixing valve core by the operation of the handle of the water tap, and simultaneously input the cold water in the hot water pipe into the cold water pipe. The invention has the advantages of simple structure, low production and use cost, low cost of new installation or modification of families, flexible and convenient use and capability of realizing zero-cold water in a real sense.

Description

Zero-cold-water supply system and method
Technical Field
The invention relates to the technical field of zero-cold water, in particular to a zero-cold water supply system and a method.
Background
The concept of 'protecting environment, saving resources and enjoying green life' is deeply put into the heart of people, so that a great number of scientific and technological workers make continuous efforts, and a plurality of intelligent and environment-friendly new products are continuously researched and developed to enter the family, so that the life of the people is changed. Taking household hot water as an example, zero-cold-water heaters and return water control systems which take water saving and comfort as subjects are beginning to be spread all over the world, and at present, the products can basically achieve the effect that the hot water can come immediately after a water faucet is opened. However, they have the defects that cannot be avoided, specifically summarized as the following five aspects:
1. the zero-cold-water heater has high production cost, and the selling price is more than twice of that of the common water heater;
2. the cost of manufacturing a water return pipe or a water return system is high;
3. the gas or electricity costs to maintain hot water circulation are high;
4. the method is suitable for new houses without installed hydropower, and if the hydropower is installed in the houses, the cost of excavating and laying a water return system of the houses and eliminating the original common water heater is high;
5. the cold water between the water return valve at the bottom of the water faucet and the water faucet can not realize hot water circulation, after the hot water circulation is completed, the water faucet is opened to take hot water, the cold water can still be discharged and wasted, and true zero cold water cannot be realized.
Disclosure of Invention
In view of the above, the invention provides a zero-cold water supply system and method, which can overcome the defects of the existing zero-cold water product and return water control system, and has the advantages of simple structure, low production and use cost, low cost for newly installing or modifying a family, flexible and convenient use, and capability of realizing real zero-cold water.
The utility model provides a zero cold water supply system, includes tap, water heater, cold water pipe, hot-water line, its characterized in that: the water heater and the overflow water pump are connected with the controller, when the controller is used for the handle operation of the faucet to enable the mixing valve core to communicate the hot water pipe and the cold water pipe, the water heater and the overflow water pump are controlled to act to heat cold water in the cold water pipe and then input the cold water into the hot water pipe, and meanwhile cold water in the hot water pipe is input into the cold water pipe.
Furthermore, the ceramic chip mixing valve core is provided with a first hole, a second hole and a water outlet hole, wherein the first hole is communicated with one end of the hot water pipe, the second hole is communicated with one end of the cold water pipe, the water outlet hole is communicated with an outlet of the faucet, and the ceramic chip mixing valve core is used for realizing communication among the first hole, the second hole and the water outlet hole through operation of a handle of the faucet.
Furthermore, the first hole is communicated with one end of the hot water pipe through a hot water hose, and the second hole is communicated with one end of the cold water pipe through a cold water hose.
Further, zero cold water control assembly still includes the first water flow switch of being connected with the controller, the second water flow switch, first import and export is connected with the one end of water inlet and overflow water pump, overflow water pump's the other end and second import and export and be connected, insert first water flow switch between overflow water pump and the water inlet, insert the second water flow switch between overflow water pump and the second import and export, the controller is used for controlling the action of water pump according to first water flow switch, the state of second water flow switch and length of presetting, the state of first water flow switch, second water flow switch is by the operation control of handle.
Furthermore, the ceramic chip mixed valve element comprises a movable ceramic chip and a lower ceramic chip, wherein the bottom of the movable ceramic chip is provided with a groove water channel, the lower ceramic chip is provided with three holes, namely a first hole, a second hole and a water outlet hole, the plane of the movable ceramic chip moves, and then the three holes of the lower ceramic chip are enabled to present five communication modes through the position movement between the groove water channel and the three holes, namely a closing mode, a mixed water mode in which the first hole, the second hole and the water outlet hole are communicated, a cold water outlet mode in which the second hole is communicated with the water outlet hole, a hot water outlet mode in which the first hole is communicated with the water outlet hole, and a zero cold water return mode in which the first hole is communicated with the second hole.
Furthermore, potsherd mixed valve core still includes driving lever, pivot seat, moves the ceramic chip fixing base, and tap's handle is fixed on the driving lever, and the driving lever passes through the pivot to be connected with rotatory axle bed, moves the ceramic chip and is fixed in rotatory axle bed through moving the ceramic chip fixing base, and the action is lifted up, rotatory and pushed down to the handle, impels the driving lever around the pivot around rotatory, drive rotatory axle bed around case circumference rotatory, and then stir ceramic chip fixing base and do the plane movement, and then drive and move the ceramic chip and do the plane movement.
A zero-cold-water supply method is carried out by adopting the system, and the method comprises the following steps:
the handle of the water faucet is operated to start a zero-cold water function, so that a first water flow switch and a second water flow switch in a zero-cold water control assembly generate a combined signal, and finally the ceramic chip mixing valve core is operated to communicate the hot water pipe and the cold water pipe;
the controller controls the overflow water pump according to a combined signal generated by the first water flow switch and the second water flow switch to input cold water in the cold water pipe into the water heater, the cold water is heated by the water heater and then input into the hot water pipe, and meanwhile, the cold water in the hot water pipe is input into the cold water pipe through the ceramic chip mixing valve core.
Further, the controller controls the overflow water pump to be closed after the zero cold water function is started for a preset time, and simultaneously sends out an indication signal to indicate that all the hot water pipe is heated to be hot water and all the cold water pipe is cold water.
Further, when the zero cold water function state is realized, the zero cold water function can be closed midway by closing the handle of the water faucet, at the moment, no water flows from the first inlet and the second outlet, the second water flow switch is in a closed state, the overflow water pump is closed, and the zero cold water function is forcibly stopped.
Furthermore, the handle of the water faucet is lifted to the position of cold water outlet, hot water outlet or mixed water, normal water using action is executed, the first water flow switch is always in an opening state, the controller does not output action, and cold water, hot water or mixed water can normally flow out of the water faucet.
The invention has the following beneficial effects:
1. the universality is strong, and the zero cold water effect can be realized without a special water heater;
2. a special water return pipeline is not required to be laid, so that the material cost is reduced;
3. the time length of cold water return operation of the zero cold water control assembly can be freely set by a user, the zero cold water return operation can be automatically closed at regular time or forcibly closed, and the operations are all operated on a faucet, so that useless continuous cold water heating circulation is avoided, and the fuel gas or electric power cost is saved;
4. the invention is applicable whether the house is installed with water and electricity or not:
a. for users who have installed conventional hydropower: the faucet can be utilized, as long as the faucet uses a national standard ceramic chip mixing valve core, the valve core of the faucet can be replaced by the ceramic chip mixing valve core of the invention, and the material cost is very low; a water return pipe is not required to be additionally arranged on the wall body; the original water heater can be continuously and normally used without being eliminated and wasted;
b. for users who do not install the water faucet, the invention is directly applied;
5. the cold water return is realized from the interior of the valve core, and when the zero cold water return action is finished, hot water is discharged by opening the water faucet, so that the real zero cold water function is realized.
Drawings
FIG. 1 is a schematic diagram of the zero chilled water supply system of an embodiment of the present invention in one of its operating states;
FIG. 2 is an exploded view of the ceramic hybrid cartridge of the present invention;
FIG. 3 is a cross-sectional view of a ceramic wafer mixing cartridge of the present invention;
FIG. 4 is a schematic structural diagram of a moving ceramic chip in the ceramic chip hybrid valve core according to the present invention;
FIG. 5 is a schematic structural view of a lower ceramic chip in the ceramic chip hybrid valve core according to the present invention;
FIG. 6 is a schematic view of the faucet of the present invention;
FIG. 7 is a schematic view of the position of the handle of the faucet in various operating positions of the present invention;
FIG. 8 is a schematic view of the state of the ceramic pieces when the faucet is closed according to the present invention;
FIG. 9 is a schematic view of the porcelain piece state of the faucet when mixed water is discharged;
FIG. 10 is a schematic view of the state of the ceramic pieces when the water tap of the present invention is discharging cold water;
FIG. 11 is a schematic view of the ceramic sheet state of the faucet during hot water discharge;
FIG. 12 is a schematic view of the state of the ceramic tiles when the faucet of the present invention is on zero cold water function;
FIG. 13 is a schematic view of the position of the handle of the faucet of the present invention when closed;
FIG. 14 is a schematic view of the position of the handle when the faucet of the present invention is discharging mixed water;
FIG. 15 is a schematic view of the position of the handle of the faucet of the present invention when cold water is discharged;
FIG. 16 is a schematic view of the position of the handle when the faucet of the present invention is discharging hot water;
FIG. 17 is a schematic view of the orientation of the handle of the faucet of the present invention with the zero cold water function on;
FIG. 18 is a schematic diagram of a zero chilled water control assembly according to the present invention;
fig. 19 is a schematic structural view of another operating state of the zero-cold water supply system according to the embodiment of the present invention.
The reference numerals in the figures are as follows:
1-a water tap, 2-a ceramic chip mixed valve core, 3-a zero cold water control component, 4-a water heater, 5-a cold water pipe, 6-a hot water pipe, 7-a cold water hose, 8-a hot water hose, and 11-a handle;
201-outer shell, 202-upper friction plate, 203-deflector rod, 204-shaft pin, 205-rotary shaft seat, 206-movable ceramic tile fixing seat, 207-lower friction plate, 208-movable ceramic tile, 209-lower ceramic tile, 210-lower ceramic tile sealing gasket, 211-base, 212-base sealing gasket;
2081-groove water channel; 2091 — first hole; 2092 — second hole; 2093-water outlet;
31-controller, 32-water inlet, 33-first inlet and outlet, 34-second inlet and outlet, 35-first water flow switch, 36-second water flow switch, and 37-overflow water pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of one embodiment of the zero-cold-water supply system of the present invention, where the zero-cold-water supply system includes a water tap 1, a zero-cold-water control component 3, a water heater 4, a cold water pipe 5, and a hot water pipe 6, and a ceramic chip mixing valve core 2 is arranged in the water tap 1.
Referring to fig. 5, the ceramic chip mixing valve element 2 has a first hole 2091, a second hole 2092 and a water outlet hole 2093, wherein the first hole 2091 is communicated with one end of a hot water pipe 6 through a hot water hose 8, the second hole 2092 is communicated with one end of a cold water pipe 5 through a cold water hose 7, and the water outlet hole 2093 is communicated with an outlet of the faucet 1.
Referring to fig. 18, the zero-cold water control assembly 3 includes a controller 31, a water inlet 32, a first inlet/outlet 33, a second inlet/outlet 34, a first water flow switch 35, a second water flow switch 36, and an overflow water pump 37, wherein the first water flow switch 35, the second water flow switch 36, and the overflow water pump 37 are all connected to the controller 31, and the controller 31 controls the operation of the water pump 37 according to the states of the first water flow switch 35 and the second water flow switch 36. The water inlet 32 is used for receiving municipal cold water, the first inlet and outlet 33 is connected with the water inlet 32 and one end of an overflow water pump 37, the other end of the overflow water pump 37 is connected with the second inlet and outlet 34, a first water flow switch 35 is connected between the overflow water pump 37 and the water inlet 32, and a second water flow switch 36 is connected between the overflow water pump 37 and the second inlet and outlet 34.
The other end of the cold water pipe 5 is connected with a first inlet and outlet 33 of the zero-cold water control component 3, the other end of the hot water pipe 6 is connected with a water outlet of the water heater 4, and a water inlet of the water heater 4 is connected with a second inlet and outlet 34 of the zero-cold water control component 3.
The ceramic chip mixing valve core 2 can realize communication among the first hole 2091, the second hole 2092 and the water outlet hole 2093 through operation of the handle 11 of the faucet 1 (as shown in fig. 8-12), and when the communication is switched to be the communication among the first hole 2091 and the second hole 2092, the hot water pipe 6 is communicated with the cold water pipe 5 through the ceramic chip mixing valve core 2.
The ceramic chip mixing valve core 2 is additionally provided with a zero cold water gear on the basis of a standard valve core, and has a zero cold water return function, as shown in figures 2-12.
The handle 11 of the faucet 1 is fixed on the shift lever 203, the shift lever 203 is connected with the rotating shaft seat 205 through the shaft pin 204, the movable ceramic sheet 208 is fixed on the rotating shaft seat 205 through the movable ceramic sheet fixing seat 206, and the lifting, rotating and pressing actions of the handle 11 cause the shift lever 203 to rotate back and forth around the shaft pin 204 to drive the rotating shaft seat 205 to rotate around the circumference of the valve core, and further, the movable ceramic sheet fixing seat 206 is shifted to move in a plane, and further, the movable ceramic sheet 208 is driven to move in a plane. The bottom of the movable ceramic sheet 208 is provided with a groove water channel 2081, as shown in figure 4. The lower tile 9 is not in motion and the lower tile 9 has three holes, a first hole 2091, a second hole 2092 and a water outlet hole 2093, as shown in fig. 5. The plane of the movable ceramic chip 8 moves, and the three holes of the lower ceramic chip 9 are enabled to present five communication modes through the position movement between the groove water channel 2081 and the three holes, namely, a closing mode in fig. 8, a mixed water mode in fig. 9 (the first hole 2091, the second hole 2092 and the water outlet hole 2093 are communicated), a cold water mode in fig. 10 (the second hole 2092 is communicated with the water outlet hole 2093), a hot water mode in fig. 11 (the first hole 2091 is communicated with the water outlet hole 2093), and a zero cold water return mode in fig. 12 (the first hole 2091 is communicated with the second hole 2092).
Fig. 8 in the off mode: the first hole 2091, the second hole 2092 and the water outlet hole 2093 are closed, hot water in the first hole 2091 and cold water in the second hole 2092 cannot flow out through the second hole 2092, and the water faucet 1 has no water;
fig. 9 shows the mixed water mode: the first hole 2091, the second hole 2092 and the water outlet hole 2093 are all communicated, hot water in the first hole 2091 and cold water in the second hole 2092 simultaneously flow out through the water outlet hole 2093, and water discharged from the water tap 1 is mixed warm water;
fig. 10 shows the cold water mode: the first hole 2091 is closed, the second hole 2092 and the water outlet hole 2093 are communicated, cold water in the second hole 2092 flows out through the water outlet hole 2093, and cold water flows out of the faucet 1;
fig. 11 shows the hot water mode: the second hole 2092 is closed, the first hole 2091 is communicated with the water outlet hole 2093, hot water in the first hole 2091 flows out through the water outlet hole 2093, and hot water flows out of the faucet 1;
fig. 12 zero cold water return mode: the first hole 2091 and the second hole 2092 are communicated, water in the first hole 2091 flows into the second hole 2092 under the driving of the zero cold water control component 3, the water outlet hole 2093 is closed, and the water tap 1 executes a zero cold water return action.
Fig. 8, 9, 10, 11, and 12 are views of the faucet handles in the closed mode, the mixed water mode, the hot water mode, and the zero-cold-water-return mode, respectively, as shown in fig. 13, 14, 15, 16, and 17.
The invention only needs a common water heater 4 and standard cold and hot water pipelines (a cold water pipe 5 and a hot water pipe 6) without additionally arranging a water return pipeline, and the concrete pipelines are shown in figure 1.
The working steps of the invention are as follows:
1. the zero cold water function operates as follows, with the piping layout of fig. 12:
a. normally starting a zero-cold-water function: the handle 11 of the water faucet 1 is lifted to a hot water gear, the mode of ceramic chip combination is a hot water mode shown in fig. 11, a specific action m1 of continuously opening and closing the water faucet for several times is executed, municipal pipe cold water flows through the water inlet 32 of the zero cold water control assembly 1, passes through the first water flow switch 35 and then passes through the second water flow switch 36, the first water flow switch 35 and the second water flow switch 36 can generate several groups of ON combined signals h1 according to the specific action m1, then the handle 11 is lifted and rotated to a zero cold water function gear, the mode of ceramic chip combination is a zero cold water return mode shown in fig. 12, at the moment, the first hole 2091 and the second hole 2092 are conducted, and the cold water pipe 5 is communicated with the hot water pipe 6.
After receiving the combined signal h1, the controller 31 of the zero-cold-water control component 3, after time t1, sounds a buzzer, starts the overflow water pump 37 to operate at an idle speed s1, drives the water in the cold water pipe 5 to flow into the hot water pipe after being heated by the water heater 4, and the previous cold water in the hot water pipe 6 continues to flow into the zero-cold-water return mode in fig. 12, and is conducted through the first hole 2091 and the second hole 2092 in the ceramic chip mixing valve core 2, that is, the previous cold water in the hot water pipe 6 flows into the cold water pipe 5, the water flow diagram is shown in fig. 19, the water flows into the second inlet/outlet 34 from the first inlet/outlet 33, the second water flow switch 36 is turned ON, the first water flow switch 35 is turned OFF, after time t2, the overflow water pump 37 operates at a high speed s2 for a time t3 defined by a user, the time t1, t2, the time periods (t 1, t2, t 3) and the speed (s 1, s 2) can be set according to the actual pipe length and the time period, after time t3, the controller 31 controls the overflow water pump 37 to turn OFF, and then the tap is heated, and the tap is turned OFF, and the tap is turned ON, and the cold water is heated by the hot water tap, and the tap is finished when the tap handle, and the cold water is heated water flow is a tap handle, and then the cold water flow is completely turned ON.
b. The function of closing zero cold water halfway: in the state a, if the zero-cold-water function is turned OFF halfway, the handle 11 of the faucet 1 is turned OFF, and no water flows from the first inlet/outlet 33 to the second inlet/outlet 34, the second water flow switch 36 is turned OFF, the overflow water pump 37 is turned OFF, and the zero-cold-water function is forcibly stopped by the third buzzer sound.
2. Normal cold, hot and mixed water outlet actions:
the normal water using action m2 is executed by lifting the handle 11 of the faucet 1 to the position of cold water, hot water or mixed water, the first flow switch 35 is always ON, the controller 31 does not operate to output, and the cold water, hot water or mixed water can normally flow out of the faucet 1.
The embodiment of the invention also provides a zero-cold-water supply method which is carried out by adopting the zero-cold-water supply system, and the method comprises the following steps:
the handle 11 of the water faucet 1 is operated to start the zero-cold water function, so that a first water flow switch 35 and a second water flow switch in a zero-cold water control assembly generate a combined signal, and finally the ceramic chip mixing valve core is operated to communicate a hot water pipe and a cold water pipe through the handle 11;
the controller 31 controls the overflow pump 37 according to a combined signal generated by the first water flow switch 35 and the second water flow switch to input cold water in the cold water pipe 5 into the water heater 4, and then the cold water is heated by the water heater 4 and then input into the hot water pipe 6, and meanwhile, cold water in the hot water pipe 6 is input into the cold water pipe through the ceramic chip mixing valve core.
After the zero cold water function is started for a preset time, the controller 31 controls the overflow pump 37 to be turned off, and simultaneously sends out an indication signal, which indicates that all the hot water in the hot water pipe 6 is heated to be hot water and all the cold water in the cold water pipe 5 is cold water.
In the zero cold water function state, the zero cold water function can be closed halfway by closing the handle 11 of the faucet 1, and at this time, when no water flows from the first inlet/outlet 33 to the second inlet/outlet 34, the second water flow switch 36 is in a closed state, the overflow water pump 37 is closed, and the zero cold water function is forcibly stopped.
When the handle 11 of the faucet 1 is lifted to a position for cold water discharge, hot water discharge or mixed water discharge, normal water use is performed, the first flow switch 35 is always on, the controller 31 does not operate to output, and cold water, hot water or mixed water flows out of the faucet 1 normally.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. The utility model provides a zero cold water supply system, includes tap, water heater, cold water pipe, hot-water line, its characterized in that: the water heater and the overflow water pump are connected with the controller, and the controller is used for controlling the water heater and the overflow water pump to act to heat cold water in the cold water pipe and input the heated cold water into the hot water pipe and input cold water in the hot water pipe into the cold water pipe when the mixing valve core is used for communicating the hot water pipe and the cold water pipe through the handle of the water faucet; the zero-cold water control assembly further comprises a first water flow switch and a second water flow switch which are connected with the controller, a first inlet and a first outlet are connected with the water inlet and one end of the overflow water pump, the other end of the overflow water pump is connected with a second inlet and a second outlet, the first water flow switch is connected between the overflow water pump and the water inlet, the second water flow switch is connected between the overflow water pump and the second inlet and the second outlet, the controller is used for controlling the action of the water pump according to the states of the first water flow switch and the second water flow switch and the preset time length, and the states of the first water flow switch and the second water flow switch are controlled by the operation of the handle; the ceramic chip mixing valve core comprises a movable ceramic chip and a lower ceramic chip, wherein a groove water channel is arranged at the bottom of the movable ceramic chip, the lower ceramic chip is provided with three holes, namely a first hole, a second hole and a water outlet hole, the plane of the movable ceramic chip moves, and then the three holes of the lower ceramic chip are enabled to be in five communication modes through position movement between the groove water channel and the three holes, namely a closing mode, a mixed water mode in which the first hole, the second hole and the water outlet hole are communicated, a cold water outlet mode in which the second hole is communicated with the water outlet hole, a hot water outlet mode in which the first hole is communicated with the water outlet hole, and a zero cold water return mode in which the first hole is communicated with the second hole.
2. The zero cold water supply system of claim 1, wherein: the ceramic chip mixing valve core is provided with a first hole, a second hole and a water outlet hole, wherein the first hole is communicated with one end of a hot water pipe, the second hole is communicated with one end of a cold water pipe, the water outlet hole is communicated with an outlet of a faucet, and the ceramic chip mixing valve core is used for realizing communication among the first hole, the second hole and the water outlet hole through operation of a handle of the faucet.
3. A zero cold water supply system as claimed in claim 2, wherein: the first hole is communicated with one end of a hot water pipe through a hot water hose, and the second hole is communicated with one end of a cold water pipe through a cold water hose.
4. The zero cold water supply system of claim 1, wherein: the ceramic chip mixing valve element further comprises a shifting rod, a shaft pin, a rotating shaft seat and a movable ceramic chip fixing seat, a handle of the faucet is fixed on the shifting rod, the shifting rod is connected with the rotating shaft seat through the shaft pin, the movable ceramic chip is fixed on the rotating shaft seat through the movable ceramic chip fixing seat, the handle lifts, rotates and presses down to enable the shifting rod to rotate around the shaft pin and drive the rotating shaft seat to rotate around the circumference of the valve element, and then the ceramic chip fixing seat is shifted to move in a plane, so that the movable ceramic chip is driven to move in a plane.
5. A zero-cold water supply method is characterized in that: performed using the system of any one of claims 1-4, the method comprising:
the handle of the water faucet is operated to start a zero-cold water function, so that a first water flow switch and a second water flow switch in a zero-cold water control assembly generate a combined signal, and finally the ceramic chip mixing valve core is operated to communicate the hot water pipe and the cold water pipe;
the controller controls the overflow water pump according to a combined signal generated by the first water flow switch and the second water flow switch to input cold water in the cold water pipe into the water heater, the cold water is heated by the water heater and then input into the hot water pipe, and meanwhile, the cold water in the hot water pipe is input into the cold water pipe through the ceramic chip mixing valve core.
6. The zero cold water supply method of claim 5, wherein: the controller controls the overflow water pump to be closed after the zero cold water function is started for a preset time, and simultaneously sends out an indication signal to indicate that all the hot water pipe is heated into hot water and all the cold water pipe is cold water.
7. The zero cold water supply method of claim 5, wherein: when the water faucet is in a zero cold water function state, the zero cold water function can be closed midway by closing the handle of the water faucet, at the moment, no water flows from the first inlet/outlet to the second inlet/outlet, the second water flow switch is in a closed state, the overflow water pump is closed, and the zero cold water function is forcibly stopped.
8. The zero-cold-water supply method of claim 5, wherein: the handle of the water faucet is lifted to the position of cold water outlet, hot water outlet or mixed water to execute normal water using action, the first water flow switch is always in an open state, the controller does not output action, and cold water, hot water or mixed water can normally flow out of the water faucet.
CN202110779494.8A 2021-07-09 2021-07-09 Zero-cold-water supply system and method Active CN113418017B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010286189A (en) * 2009-06-12 2010-12-24 Toto Ltd Instantaneous hot water supply system
CN104214367A (en) * 2014-08-18 2014-12-17 珠海市名实陶瓷阀有限公司 Multifunctional single-handle valve core and water faucet thereof
CN205841920U (en) * 2016-04-18 2016-12-28 陈非 A kind of touch constant-temperature water faucet system
EP3135831A1 (en) * 2015-08-25 2017-03-01 Globe Union Industrial Corp. Touch faucet
CN109812978A (en) * 2019-03-14 2019-05-28 田成洋 A kind of water heater cold water reflux unit and the control method that flows back

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010286189A (en) * 2009-06-12 2010-12-24 Toto Ltd Instantaneous hot water supply system
CN104214367A (en) * 2014-08-18 2014-12-17 珠海市名实陶瓷阀有限公司 Multifunctional single-handle valve core and water faucet thereof
EP3135831A1 (en) * 2015-08-25 2017-03-01 Globe Union Industrial Corp. Touch faucet
CN205841920U (en) * 2016-04-18 2016-12-28 陈非 A kind of touch constant-temperature water faucet system
CN109812978A (en) * 2019-03-14 2019-05-28 田成洋 A kind of water heater cold water reflux unit and the control method that flows back

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