CN106369807B - Zero cold water gas heater of one kind and its system - Google Patents
Zero cold water gas heater of one kind and its system Download PDFInfo
- Publication number
- CN106369807B CN106369807B CN201610917603.7A CN201610917603A CN106369807B CN 106369807 B CN106369807 B CN 106369807B CN 201610917603 A CN201610917603 A CN 201610917603A CN 106369807 B CN106369807 B CN 106369807B
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- water
- pipe
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- cold
- cold water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 1019
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000005086 pumping Methods 0.000 claims abstract description 52
- 238000002156 mixing Methods 0.000 claims description 33
- 239000007789 gas Substances 0.000 description 77
- 238000010438 heat treatment Methods 0.000 description 53
- 239000008399 tap water Substances 0.000 description 9
- 235000020679 tap water Nutrition 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 239000000567 combustion gas Substances 0.000 description 3
- 238000003287 bathing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/124—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using fluid fuel
- F24H1/125—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using fluid fuel combined with storage tank
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/219—Temperature of the water after heating
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/238—Flow rate
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/335—Control of pumps, e.g. on-off control
-
- 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
- F24H9/139—Continuous flow heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/305—Control of valves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The invention discloses a kind of zero cold water gas heaters comprising water circulating pump, pump water inlet, pumping line, cold water pipe, cold water water inlet tap, hot water effluent's mouth, heat exchanger, the first check valve, controller, the first water flow sensor and the second water flow sensor；Cold water water inlet tap, cold water pipe, heat exchanger and hot water effluent's mouth are sequentially communicated；Pump water inlet is connect by the water circulating pump with pumping line, and pumping line connect with cold water pipe and forms the first water pipe node in junction；First water flow sensor is installed at pump water inlet or pumping line, and the second water flow sensor and the first check valve are mounted at one section of cold water pipe between the first water pipe node and cold water water inlet tap；Water circulating pump, the first water flow sensor and the second water flow sensor are electrically connected with the controller.The present invention can correctly judge user's water, have good user experience and can save electric energy and extend water pump service life.
Description
Technical field
The present invention relates to gas utensil technical fields, more particularly to a kind of zero cold water gas heater and its system.
Background technique
This disadvantage of tap water can be flowed out first with water spot in order to solve gas heater when in use, occurred at present
Zero cold water gas heater, including the water circulation heating tube being made of water circulating pump and return pipe etc., water circulation heating tube
One end connected with the cold water inlet for connecting heat exchanger, the other end of water circulation heating tube is with and with the combustion that connect of water spot
The hot water outlet pipe of gas water heater connects.Its working principle is that: when the water temperature in hot water outlet pipe is lower than preset temperature, circulation
Water pump begins to work, by return pipe by the cold-water reflux in hot water outlet pipe into cold water inlet, and by cold water into
Water pipe enters heat exchanger Zhang Jinhang heating, and the preheating of the cold water in hot water outlet pipe may be implemented in this way, so that
User is in the water used with water spot by heating in advance.In addition, existing zero cold water gas heater further includes set on described
Water flow sensor in cold water pipe has water flowing, at this moment water when user is in normal water utilizing process in the cold water pipe
The flow velocity of water flow can be changed into electric signal and electric signal is sent to the control being electrically connected with water flow sensing unit by flow sensor
Device, then controller, which judges out, water flowing in cold water pipe, shows that user is using water, at this moment controller can control zero cold water
The heating work of gas heater, and the water after heating is sent to user's water spot, it enables a user to just commonly use water.
But because the circulation heating tube of zero current cold water gas heater is connected to cold water inlet, and water flow
Sensor is mounted on the water inlet of one section of cold water between the connectivity part of circulation heating tube and cold water inlet and the heat exchanger
Guan Zhong, this meeting is so that circulation heating tube and cold water inlet share a water flow sensor, when carrying out cold water preheating,
Water circulation heating tube has water flowing, and water flow sensor will generate water-flow signal；When user carries out bath water, cold water
Water inlet pipe also has water flowing, and water flow sensor can also generate water-flow signal；Such that controller is difficult accurately to sentence
It is disconnected to go out to be the water flowing of user's cold water pipe caused by progress bath water or water circulating-heating, so that working as user needs
Water circulating-heating may be will do it instead with zero cold water gas heater when water, prevent user is from just common water (because working as
User's zero cold water gas heater during with water can make in water spot and pipeline also when carrying out water circulating-heating
Hydraulic pressure is not sufficiently stable, simultaneously as the unstable control program that can also make zero cold water gas heater of the hydraulic pressure in pipeline is multiple
It is miscellaneous, so that sequential operation is easy error and causes water heater working unstable), and then affect the usage experience of user；
And user can waste electric energy with water water pump also if work, while also affect the working life of water pump.
Summary of the invention
In view of the above-mentioned problems, the case where capable of correctly judging user's water the purpose of the present invention is to provide one kind to
With good user experience and electric energy can be saved and extend the zero cold water gas heater and zero of water pump service life
Cold water gas heater system.
To achieve the goals above, the present invention provides a kind of zero cold water gas heaters comprising water circulating pump, water pump
Water inlet pipe, pumping line, cold water pipe, cold water water inlet tap, hot water effluent's mouth, heat exchanger, the first check valve, controller,
One water flow sensor and the second water flow sensor；The cold water pipe is connect with the cold water water inlet tap, and the cold water
Pipe is connect with the water inlet end of the heat exchanger；The water outlet of the heat exchanger is connected to hot water effluent's mouth；The water
The first end of pump water inlet pipe with hot water effluent's mouth for being connected to, the second end of the pump water inlet and the water circulating pump
Water inlet end connection；The first end of the pumping line is connect with the water outlet of the water circulating pump, and the water pump water outlet
The second end of pipe connect to form the first water pipe node with the cold water pipe；First water flow sensor is installed on the water pump
At water inlet pipe or at the pumping line, second water flow sensor and first check valve are mounted on described the
At one section of cold water pipe between one water pipe node and the cold water water inlet tap；The entrance of first check valve and the cold water into
Water nozzle connection, the outlet of first check valve is connected to the first water pipe node；The water circulating pump, first water flow
Quantity sensor is electrically connected with the controller with second water flow sensor.
Preferably, the zero cold water gas heater further includes third check valve；The third check valve is mounted on described
At pumping line, and the entrance of the third check valve is connected to the first end of the pumping line, and the third is unidirectional
The outlet of valve is connected to the second end of the pumping line；Alternatively, the third check valve is mounted on the pump water inlet
Place, and the entrance of the third check valve is connected to the first end of the pump water inlet, the outlet of the third check valve and
The second end of the pump water inlet is connected to.
Preferably, the zero cold water gas heater further includes hot water storage tank, the water inlet end of the hot water storage tank with
The water outlet of the heat exchanger is connected to, and the water outlet of the hot water storage tank is connected to hot water effluent's mouth.
Preferably, the zero cold water gas heater further includes the return water mouth for being connected to hot water effluent's mouth, institute
Return water mouth is stated to connect with the first end of the pump water inlet.
The present invention also provides the first zero cold water gas heater systems, including the first running water pipe, the second tap water
Pipe, the mouth of a river from the beginning, water mixing valve, the 4th check valve, the return water connecting tube, hot water outlet pipe, connection of at least one connection water spot
Pipe and zero cold water gas heater as described above；The return water mouth is connected by the connecting tube and the cold water water inlet tap
It connects；The hot water mouth of the water mixing valve is connected to by the hot water outlet pipe with hot water effluent's mouth, and the hot water outlet pipe is logical
It crosses and the return water connecting tube of the 4th check valve is installed is connect with first running water pipe；4th check valve
Entrance is connected to the hot water outlet pipe, and the outlet of the 4th check valve is connected to first running water pipe；The mixed water
The cold water outlet of valve is connect with one end of first running water pipe, and the other end of first running water pipe and described second is originally
One end of water pipe connects, and the other end of second running water pipe is connect with the cold water water inlet tap；The mouth of a river from the beginning with
First running water pipe and second running water pipe connection.
The present invention also provides second of zero cold water gas heater systems, including the first running water pipe, the second tap water
Pipe, the mouth of a river from the beginning, water mixing valve, the return water connecting tube, hot water outlet pipe and as described above zero of at least one connection water spot
Cold water gas heater；The hot water mouth of the water mixing valve is connected to by the hot water outlet pipe with hot water effluent's mouth, described
Hot water outlet pipe is connect by the return water connecting tube with the return water mouth；The cold water outlet of the water mixing valve and described first is originally
One end of water pipe connects, and the other end of first running water pipe is connected to the mouth of a river from the beginning, second running water pipe
One end is connect with the cold water water inlet tap, and the other end of second running water pipe is connected to the mouth of a river from the beginning.
Preferably, the first end of the pump water inlet is connect to form the second water pipe node with the cold water pipe, described
Second water pipe node is at one end cold water pipe between the cold water water inlet tap and the first water pipe node, second water
Flow sensor and first check valve are specifically to be mounted on positioned at the first water pipe node and the second water pipe section
At one section of cold water pipe between point.
The present invention also provides the third zero cold water gas heater systems, including the first running water pipe, the second tap water
Pipe, the mouth of a river from the beginning, at least one connection water mixing valve of water spot, the 4th check valve, return water connecting tube, hot water outlet pipe and such as
The upper zero cold water gas heater；The hot water mouth of the water mixing valve passes through the hot water outlet pipe and hot water effluent's mouth
Connection, the hot water outlet pipe by be equipped with the 4th check valve the return water connecting tube and first running water pipe
Connection；The entrance of 4th check valve is connected to the hot water outlet pipe, the outlet and described first of the 4th check valve
Running water pipe connection；The cold water outlet of the water mixing valve is connect with one end of first running water pipe, first running water pipe
The other end connect with one end of second running water pipe, the other end of second running water pipe and the cold water water inlet tap
Connection；The mouth of a river from the beginning is connect with first running water pipe and second running water pipe.
Further, the zero cold water gas heater further includes connecting tube, second be installed at the connecting tube list
Return water mouth to valve and for being connected to hot water effluent's mouth, the return water mouth is by the connecting tube and is located at described the
One section of cold water pipe connection between two water pipe nodes and the cold water water inlet tap；The entrance of the second one-way valve and the return water
Mouth connection, the outlet of the second one-way valve is connected to the cold water water inlet tap.
The present invention also provides the 4th kind of zero cold water gas heater systems, including the first running water pipe, the second tap water
Pipe, the mouth of a river from the beginning, water mixing valve, the return water connecting tube, hot water outlet pipe and as described above zero of at least one connection water spot
Cold water gas heater；The hot water mouth of the water mixing valve is connected to by the hot water outlet pipe with hot water effluent's mouth, described
Hot water outlet pipe is connect by the return water connecting tube with the return water mouth；The cold water outlet of the water mixing valve and described first is originally
One end of water pipe connects, and the other end of first running water pipe is connected to the mouth of a river from the beginning, second running water pipe
One end is connect with the cold water water inlet tap, and the other end of second running water pipe is connected to the mouth of a river from the beginning.
The zero cold water gas heater provided by the invention and the zero cold water gas heater system, by by institute
The first end for stating pumping line is connect with the water outlet of the water circulating pump, and by the second end of the pumping line and institute
It states cold water pipe to connect to form the first water pipe node, and the cold water pipe is connected by the heat exchanger and hot water effluent's mouth
It is logical, and first water flow sensor is installed at the pump water inlet or at the pumping line；In this way when with
In the pump water inlet, the water circulating pump, the pumping line, the cold water that are connected to hot water effluent's mouth
(the water circulating pump work when water circulation heating tube work that pipe, the heat exchanger and hot water effluent's mouth are constituted
Make), the water circulating pump will be sprayed onto the pumping line from the water that the pump water inlet is come in, then by described cold
Water pipe enters and carries out circulating-heating in the heat exchanger, this when, first water flow sensor can generate water flow
Signal, but second water flow sensor does not generate water-flow signal (because of the entrance of first check valve and institute
The connection of cold water water inlet tap is stated, the outlet of first check valve is connected to the first water pipe node, and first check valve
It is installed at one section of cold water pipe between the first water pipe node and the cold water water inlet tap, so the pumping line stream
Water out is cannot to flow back to the direction of the cold water water inlet tap, therefore be installed on the first water pipe node and the cold water
Second water flow sensor at the cold water pipe between water inlet tap would not generate water-flow signal), the at this moment control
Device processed just judges the zero cold water gas heater and is carrying out water circulating-heating；And when user needs with water, at this moment without
Whether work by the water circulating pump, the cold water water inlet tap has water and flows into and pass through the cold water pipe arrival heat exchange
Device heat and is flowed out after the heating from hot water effluent's mouth, so that the cold water pipe has water flowing, it is at this moment described
Second water flow sensor will generate water-flow signal, and the controller judges that user is using according to the water-flow signal
Water, then the controller allows the water circulating pump to stop working, and the controller is sensed according to first water flow
The water-flow signal of device and second water flow sensor calculates the total water current amount of the zero cold water gas heater, then institute
The heating work that controller controls the zero cold water gas heater according to the total water current amount is stated, user is just commonly used
Water overcomes and makes sequential operation be easy zero cold water combustion gas heat caused by error because single flow sensor control program is complicated
The problem of hydrophone job insecurity, therefore the present invention has good user experience；And because pass through second water flow
Sensor judges that user just allows the water circulating pump to stop working with when water, can save and follow described in electric energy and extension
The service life of ring water pump.
Detailed description of the invention
In order to illustrate more clearly of technical solution of the present invention, attached drawing needed in embodiment will be made below
Simply introduce, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of zero cold water gas heater provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another zero cold water gas heater provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another zero cold water gas heater provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of zero cold water gas heater system provided in an embodiment of the present invention；
Fig. 5 is another structural schematic diagram of zero cold water gas heater system shown in Fig. 4；
Fig. 6 is the structural schematic diagram of another zero cold water gas heater system provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of another zero cold water gas heater system provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of another zero cold water gas heater system provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Figure 1, Fig. 2 and Fig. 3, one aspect of the present invention provide a kind of zero cold water gas heater, including recirculated water
Pump 1, pump water inlet 2, pumping line 3, cold water pipe 4, cold water water inlet tap 5, hot water effluent's mouth 6, heat exchanger 7, first are single
To valve 8, controller 9, the first water flow sensor 10 and the second water flow sensor 11；The cold water pipe 4 and the cold water
Water inlet tap 5 connects, and the cold water pipe 4 is connect with the water inlet end of the heat exchanger 7；The water outlet of the heat exchanger 7 with
Hot water effluent's mouth 6 is connected to；The first end of the pump water inlet 2 with hot water effluent's mouth 6 for being connected to, the water pump
The second end of water inlet pipe 2 is connect with the water inlet end of the water circulating pump 1；The first end and the circulation of the pumping line 3
The water outlet of water pump 1 connects, and the second end of the pumping line 3 connect with the cold water pipe 4 and forms the first water pipe node；
First water flow sensor 10 is installed at the pump water inlet 2 or at the pumping line 3, second water flow
Quantity sensor 11 and first check valve 8 are mounted on one between the first water pipe node and the cold water water inlet tap 5
At section cold water pipe 4；The entrance of first check valve 8 is connected to the cold water water inlet tap, the outlet of first check valve 8 with
The first water pipe node connection；The water circulating pump 1, first water flow sensor 10 and second water flow sense
Device 11 is electrically connected with the controller 9.
Preferably, referring to Figure 1, the zero cold water gas heater further includes third check valve 30, and the third is unidirectional
Valve 30 is installed at the pumping line 3；The third check valve 30 is mounted at the pumping line 3, and described
The entrance of three check valves 30 is connected to the first end of the pumping line 3, the outlet of the third check valve 30 and the water
The second end of water pump outlet pipe 3 is connected to；Alternatively, the third check valve 30 is mounted at the pump water inlet 2, and the third
The entrance of check valve 30 is connected to the first end of the pump water inlet 2, the outlet of the third check valve 30 and the water pump
The second end of water inlet pipe 2 is connected to.It can prevent water from flowing to the water by the pump water inlet 2 from the cold water pipe 4 in this way
Pump water inlet pipe 2, so that it is described to allow water flow more intensively to flow to by the cold water pipe 4 connecting with the cold water water inlet tap 5
Heat exchanger 7.
Preferably, referring to Figure 1, Fig. 2 and Fig. 3, the zero cold water gas heater further includes hot water storage tank 31, described
The water inlet end of hot water storage tank 31 is connected to the water outlet of the heat exchanger 7, the water outlet of the hot water storage tank 31 and institute
State the connection of hot water effluent's mouth 6.In this way from the heat exchanger 7 come out hot water and be temporarily stored in the hot water storage tank 31
Hot water mixed, reduce hot water effluent's mouth 6 come out hot water range of temperature, so as to avoid the heat
The water that water faucet 6 comes out is sometimes hot and sometimes cold, and then improves the usage experience of user.It should be noted that the hot water water storage
Can be connected by one or more pipelines between case 31 and the heat exchanger 7 it is logical, the hot water storage tank 31 with it is described
It can be connected to by one or mostly with pipeline between hot water effluent's mouth 6, be not specifically limited herein.
In embodiments of the present invention, by by the water outlet of the first end of the pumping line 3 and the water circulating pump 1
Connection, and the second end of the pumping line 3 is connect with the cold water pipe 4 and forms the first water pipe node, and the cold water
Pipe 4 is connected to by the heat exchanger 7 with hot water effluent's mouth 6, and first water flow sensor 10 is installed on institute
It states at pump water inlet 2 or at the pumping line 3；In this way when the water pump for being connected to hot water effluent's mouth 6
Water inlet pipe 2, the water circulating pump 1, the pumping line 3, the cold water pipe 4, the heat exchanger 7 and the hot water go out
When the water circulation heating tube work that water nozzle 6 is constituted (water circulating pump 1 works), the water circulating pump 1 will be from the water
The water that pump water inlet pipe 2 is come in is sprayed onto the pumping line 3, then enters the heat exchanger 7 by the cold water pipe 4
Middle carry out circulating-heating, this when, first water flow sensor 10 can generate water-flow signal, but second water flow
There is no water-flow signal is generated, (entrance because of first check valve 8 is connected to quantity sensor 11 with the cold water water inlet tap, institute
The outlet for stating the first check valve is connected to the first water pipe node, and first check valve 8 is installed on first water pipe
At one section of cold water pipe 4 between node and the cold water water inlet tap 5, so the water that the pumping line 3 flows out is cannot be to
The direction reflux of the cold water water inlet tap 5, therefore be installed between the first water pipe node and the cold water water inlet tap 5
Second water flow sensor 11 at the cold water pipe 4 would not generate water-flow signal), at this moment the controller 9 will
Judge that the zero cold water gas heater is carrying out water circulating-heating；And when user needs with water, at this moment no matter described follow
Whether ring water pump 1 works, the cold water water inlet tap 5 have water flow into and pass through the cold water pipe 4 reach the heat exchanger 7 into
Row heating and after the heating from hot water effluent's mouth 6 outflow, so that the cold water pipe 4 has water flowing, at this moment described the
Two water flow sensors will generate water-flow signal, and the controller 9 judges that user is using according to the water-flow signal
Water, then the controller 9 allows the water circulating pump 1 to stop working, and the controller 9 is passed according to first water flow
The water-flow signal of sensor 10 and second water flow sensor 11 calculates the total water current amount of the zero cold water gas heater,
Then the controller 9 controls the heating work of the zero cold water gas heater according to the total water current amount, so that user can
Just to commonly use water, overcomes and make the easy error of sequential operation caused zero cold because list flow sensor control program is complicated
The unstable problem of water gas water heater working, therefore the present invention has good user experience；And because passing through described the
Two water flow sensors 11 judge user with just allowing the water circulating pump 1 to stop working when water, can save electric energy with
And extend the service life of the water circulating pump 1.
In order to facilitate the understanding of the present invention, here, providing some preferred embodiments of the invention:
The first preferred embodiment:
Referring to Figure 1, the zero cold water gas heater further includes the return water mouth for being connected to hot water effluent's mouth 6
13, the return water mouth 13 is connect with the first end of the pump water inlet 2.
In the preferred embodiment, by the return water mouth 13 that will be used to be connected to hot water effluent's mouth 6 with it is described
The first end of pump water inlet 2 connects, the return water mouth 13 described in this way, the pump water inlet 2, the water circulating pump 1, the water
Water pump outlet pipe 3, the cold water pipe 4, the heat exchanger 7 and hot water effluent's mouth 6 may be constructed water circulation heating tube,
So that the zero cold water gas heater has the hydronic function of water.
Second of preferred embodiment:
Fig. 2 is referred to, the first end of the pump water inlet 2 is connect to form the second water pipe node with the cold water pipe 4,
The second water pipe node is described at one section of cold water pipe 4 between the cold water water inlet tap 5 and the first water pipe node
Second water flow sensor 11 and first check valve 8 are specifically to be mounted on positioned at the first water pipe node and described the
At one section of cold water pipe 4 between two water pipe nodes.
In the preferred embodiment, by connecting the first end of the pump water inlet 2 with the cold water pipe 4 to be formed
Second water pipe node, in this way when the pump water inlet 2 connecting with the cold water pipe 4 is by connecting with the cold water pipe 4
The cold water water inlet tap 5 when being connected to hot water effluent's mouth 6, the cold water water inlet tap 5, the pump water inlet 2, institute
Stating water circulating pump 1, the pumping line 3, the cold water pipe 4, the heat exchanger 7 and hot water effluent's mouth 6 can be with
Water circulation heating tube is constituted, so that the zero cold water gas heater has the hydronic function of water.
The third preferred embodiment is provided on the basis of second of preferred embodiment:
Refer to Fig. 3, the zero cold water gas heater further includes connecting tube 14, be installed at the connecting tube 14
Two check valves 15 and return water mouth 13 for being connected to hot water effluent's mouth 6, the return water mouth 13 pass through the connecting tube
14 and between the second water pipe node and the cold water water inlet tap 5 one section of cold water pipe 4 connection；The second one-way valve
15 entrance is connected to the return water mouth 13, and the outlet of the second one-way valve 15 is connected to the cold water water inlet tap 5.
In the preferred embodiment, by connecting the first end of the pump water inlet 2 with the cold water pipe 4 to be formed
Second water pipe node, and the return water mouth 13 by the connecting tube 14 be located at the second water pipe node and the cold water into
One section of cold water pipe 4 connection between water nozzle 5；In this way when the pump water inlet 2 being connect with the cold water pipe 4 be by with institute
The cold water water inlet tap 5 of the connection of cold water pipe 4 is stated when being connected to hot water effluent's mouth 6, it is the cold water water inlet tap 5, described
Pump water inlet 2, the water circulating pump 1, the pumping line 3, the cold water pipe 4, the heat exchanger 7 and the heat
Water faucet 6 may be constructed water circulation heating tube；Or be when the pump water inlet 2 be by the return water mouth 13 come
When being connected to hot water effluent's mouth 6, the return water mouth 13, the connecting tube 14, the pump water inlet 2, the recirculated water
Pump 1, the pumping line 3, the cold water pipe 4, the heat exchanger 7 and hot water effluent's mouth 6 may be constructed water and follow
Ring heats pipeline；Therefore make the zero cold water gas heater that there is the hydronic function of water simultaneously by this preferred embodiment
User can be allowed to carry out the design of water circulation heating tube according to the actual situation, improve the usage experience of user.
Another aspect of the present invention provides a kind of zero cold water gas heater system, referring to Fig. 4, including the first tap water
Pipe 20, the second running water pipe 21, the mouth of a river from the beginning 22, the water mixing valve 23 of at least one connection water spot, the 4th check valve 24, return water
Connecting tube 25, hot water outlet pipe 26, connecting tube 14 and the zero cold water gas heater as described in the first preferred embodiment；Institute
It states return water mouth 13 and is connect by the connecting tube 14 with the cold water water inlet tap 5；The hot water mouth of the water mixing valve 23 passes through described
Hot water outlet pipe is connected to hot water effluent's mouth 6, and the hot water outlet pipe is by being equipped with the institute of the 4th check valve 24
Return water connecting tube 25 is stated to connect with first running water pipe 20；The entrance of 4th check valve 24 and the hot water outlet pipe
26 connections, the outlet of the 4th check valve 24 is connected to first running water pipe 20；The cold water outlet of the water mixing valve 23 with
One end of first running water pipe 20 connects, the other end of first running water pipe 20 and second running water pipe 21
One end connection, the other end of second running water pipe 21 are connect with the cold water water inlet tap 5；The mouth of a river from the beginning 22 is and institute
State the first running water pipe 20 and second running water pipe 21 connection.
In embodiments of the present invention, the hot water outlet pipe 26 being connected to hot water effluent's mouth 6 is by installing
The return water connecting tube 25 for stating the 4th check valve 24 is connect with first running water pipe 20, and first running water pipe 20
It is connect by second running water pipe 21 with the cold water water inlet tap 5, the hot water outlet pipe 26 described in this way, return water connection
Pipe 25, first running water pipe 20, second running water pipe 21, the cold water water inlet tap 5, the connecting tube 14, return water
Mouth 13, the pump water inlet 2, the water circulating pump 1, the pumping line 3, the cold water pipe 4, the heat exchanger 7
And hot water effluent's mouth 6 may be constructed water circulation heating tube, so that the zero cold water gas heater system has water
Temperature sensing that is in the hot water outlet pipe 26 and being electrically connected with the controller 9 ought be arranged in hydronic function
When device detects the water temperature in the hot water outlet pipe 26 lower than preset require, the controller 9 will control the circulation
The starting of water pump 1, so that the water in the hot water outlet pipe 26 constantly passes through return water connecting tube 25, first running water pipe
20, second running water pipe 21, the cold water water inlet tap 5, the connecting tube 14, return water mouth 13, the pump water inlet 2,
The water circulating pump 1, the pumping line 3, the cold water pipe 4 enter the heat exchanger 7 and are heated, and are heating
It is flowed out afterwards from hot water effluent's mouth 6, to realize the circulating-heating of the water in hot water outlet pipe 26.And when user needs to use water
When, at this moment no matter whether the water circulating pump 1 works, and the cold water water inlet tap 5, which has water and flows into and pass through the cold water pipe 4, to be arrived
Heat up to the heat exchanger 7 and be flowed out after the heating from hot water effluent's mouth 6, so that the cold water pipe 4 has
Water flowing, at this moment second water flow sensor will generate water-flow signal, and the controller 9 is according to the water-flow signal
Judge that user is using water, then the controller 9 allows the water circulating pump 1 to stop working, and 9 basis of the controller
The water-flow signal of first water flow sensor 10 and second water flow sensor 11 calculates the zero cold water combustion gas
The total water current amount of water heater, then the controller 9 controls adding for the zero cold water gas heater according to the total water current amount
Thermal technology makees, and user is allowed just to commonly use water, overcomes and makes sequential operation because single flow sensor control program is complicated
It is easy the unstable problem of zero cold water gas water heater working caused by malfunctioning, therefore the present invention has good user experience；
And because judging user with just allowing the water circulating pump 1 stopping work when water by second water flow sensor 11
Make, electric energy can be saved and extends the service life of the water circulating pump 1.
It should be noted that referring to Fig. 5, the connection in zero cold water gas heater system of the embodiment of the present invention
Pipe can remove, and at this moment, second running water pipe 21 can directly connect (i.e. described second tap water with the return water mouth 13
Pipe 21 is no longer connect with the cold water water inlet tap 5)；The hot water outlet pipe 26 described in this way, the return water connecting tube 25, described first
It is running water pipe 20, second running water pipe 21, the return water mouth 13, the pump water inlet 2, the water circulating pump 1, described
Pumping line 3, the cold water pipe 4, the heat exchanger 7 and hot water effluent's mouth 6 may be constructed water circulating-heating pipe
Road, so that the zero cold water gas heater system has the hydronic function of water, i.e., when setting is in the hot water outlet pipe
Temperature sensor that is in 26 and being electrically connected with the controller 9 detects the water temperature in the hot water outlet pipe 26 lower than default
Requirement when, the controller 9 will control the starting of the water circulating pump 1, so that the water in the hot water outlet pipe 26 is not
It is open close to cross return water connecting tube 25, first running water pipe 20, second running water pipe 21, the return water mouth 13, the water
Pump water inlet pipe 2, the water circulating pump 1, the pumping line 3, the cold water pipe 4 enter the heat exchanger 7 and are added
Heat, and flowed out after the heating from hot water effluent's mouth 6, to realize the circulating-heating of the water in the hot water outlet pipe 26.
In the hot water outlet pipe 26 water realize circulating-heating after, when user with water spot open the water mixing valve 23 when, use water
Point outflow can pass through the water heated first, and at this moment the tap water in the mouth of a river from the beginning 22 can also be by described second originally
Water pipe 21, the return water mouth 13, the pump water inlet 2, the water circulating pump 1, the pumping line 3, the cold water pipe 4
It enters the heat exchanger 7 to be heated, and is flowed into the hot water outlet pipe 26 from hot water effluent's mouth 6 after the heating
In, it is then flowed out again by what is connect with the hot water outlet pipe 26 with water spot, to realize the continuous supply of hot water.Therefore originally
The function of zero cold water of gas heater may be implemented in embodiment, overcomes because the water in the hot water outlet pipe 26 cannot be preparatory
It heats and leads to flow out the shortcomings that tap water of bathing requirement is not achieved in temperature first during user's use, to improve
The bathing experience of user.
Another aspect of the present invention provides a kind of zero cold water gas heater system again, referring to Fig. 6, originally including first
Water pipe 20, the second running water pipe 21, the mouth of a river from the beginning 22, the water mixing valve 23 of at least one connection water spot, return water connecting tube 25, heat
Water outlet pipe and the zero cold water gas heater as described in the first preferred embodiment；The hot water mouth of the water mixing valve 23 passes through
The hot water outlet pipe is connected to hot water effluent's mouth 6, the hot water outlet pipe by the return water connecting tube 25 with it is described
Return water mouth 13 connects；The cold water outlet of the water mixing valve 23 is connect with one end of first running water pipe 20, and described first originally
The other end of water pipe 20 is connected to the mouth of a river from the beginning 22, one end of second running water pipe 21 and the cold water water inlet tap 5
Connection, the other end of second running water pipe 21 are connected to the mouth of a river from the beginning 22.
In embodiments of the present invention, the hot water outlet pipe being connected to hot water effluent's mouth 6 is connected by the return water
Adapter tube 25 is connect with the return water mouth 13, the hot water outlet pipe described in this way, the return water connecting tube 25, the return water mouth 13, institute
State pump water inlet 2, the water circulating pump 1, the pumping line 3, the cold water pipe 4, the heat exchanger 7 and described
Hot water effluent's mouth 6 may be constructed water circulation heating tube, so that the zero cold water gas heater system has water circulating-heating
Function, i.e., temperature sensor that is in the hot water outlet pipe 26 and being electrically connected with the controller 9 ought be set and detected
When water temperature in the hot water outlet pipe 26 is lower than preset require, the controller 9 will control opening for the water circulating pump 1
It is dynamic, so that the water in the hot water outlet pipe 26 constantly passes through return water connecting tube 25, return water mouth 13, the pump water inlet 2, institute
It states water circulating pump 1, the pumping line 3, the cold water pipe 4 and enters the heat exchanger 7 and heated, and after the heating
It is flowed out from hot water effluent's mouth 6, to realize the circulating-heating of the water in hot water outlet pipe 26.And when user needs to use water
When, at this moment no matter whether the water circulating pump 1 works, and the cold water water inlet tap 5, which has water and flows into and pass through the cold water pipe 4, to be arrived
Heat up to the heat exchanger 7 and be flowed out after the heating from hot water effluent's mouth 6, so that the cold water pipe 4 has
Water flowing, at this moment second water flow sensor will generate water-flow signal, and the controller 9 is according to the water-flow signal
Judge that user is using water, then the controller 9 allows the water circulating pump 1 to stop working, and 9 basis of the controller
The water-flow signal of first water flow sensor 10 and second water flow sensor 11 calculates the zero cold water combustion gas
The total water current amount of water heater, then the controller 9 controls adding for the zero cold water gas heater according to the total water current amount
Thermal technology makees, and user is allowed just to commonly use water, overcomes and makes sequential operation because single flow sensor control program is complicated
It is easy the unstable problem of zero cold water gas water heater working caused by malfunctioning, therefore the present invention has good user experience；
And because judging user with just allowing the water circulating pump 1 stopping work when water by second water flow sensor 11
Make, electric energy can be saved and extends the service life of the water circulating pump 1.
Another aspect of the present invention provides a kind of zero cold water gas heater system again, referring to Fig. 7, originally including first
Water pipe 20, the mouth of a river from the beginning 22, the water mixing valve 23 of at least one connection water spot, the 4th check valve 24, returns at second running water pipe 21
Water connecting tube 25, hot water outlet pipe and the zero cold water gas heater as described in second of preferred embodiment；The water mixing valve
23 hot water mouth is connected to by the hot water outlet pipe with hot water effluent's mouth 6, and the hot water outlet pipe is by installing
The return water connecting tube 25 for stating the 4th check valve 24 is connect with first running water pipe 20；4th check valve 24 enters
Mouth is connected to the hot water outlet pipe 26, and the outlet of the 4th check valve 24 is connected to first running water pipe 20；It is described
The cold water outlet of water mixing valve 23 is connect with one end of first running water pipe 20, the other end of first running water pipe 20 and institute
One end connection of the second running water pipe 21 is stated, the other end of second running water pipe 21 is connect with the cold water water inlet tap 5；Institute
The mouth of a river from the beginning 22 is stated to connect with first running water pipe 20 and second running water pipe 21.
In embodiments of the present invention, the hot water outlet pipe being connected to hot water effluent's mouth 6 is described by being equipped with
The return water connecting tube 25 of 4th check valve 24 is connect with first running water pipe 20, is connected with first running water pipe 20
The other end of second running water pipe 21 connect is connect with the cold water water inlet tap 5；In this way when the pump water inlet 2 is logical
When crossing the cold water water inlet tap 5 connecting with the cold water pipe 4 and being connected to hot water effluent's mouth 6, the hot water outlet pipe,
The return water connecting tube 25, first running water pipe 20, second running water pipe 21, the cold water water inlet tap 5, the water
Pump water inlet pipe 2, the water circulating pump 1, the pumping line 3, the cold water pipe 4, the heat exchanger 7 and the hot water
Faucet 6 may be constructed water circulation heating tube, so that the zero cold water gas heater system has the hydronic function of water
Can, i.e., it ought be arranged in described in temperature sensor that is in the hot water outlet pipe 26 and be electrically connected with the controller 9 detects
When water temperature in hot water outlet pipe 26 is lower than preset require, the controller 9 will control the starting of the water circulating pump 1,
So that the water in the hot water outlet pipe 26 constantly passes through return water connecting tube 25, first running water pipe 20, described second certainly
Carry out water pipe 21, the cold water water inlet tap 5, the pump water inlet 2, the water circulating pump 1, the pumping line 3, described cold
Water pipe 4 enters the heat exchanger 7 and is heated, and flows out after the heating from hot water effluent's mouth 6, to realize hot water
The circulating-heating of water in outlet pipe 26.And when user needs with water, at this moment no matter whether the water circulating pump 1 works, institute
State cold water water inlet tap 5 have water flow into and pass through the cold water pipe 4 reach the heat exchanger 7 heat and after the heating from
Hot water effluent's mouth 6 flows out, so that the cold water pipe 4 has water flowing, at this moment second water flow sensor will
Water-flow signal is generated, and the controller 9 judges that user is using water according to the water-flow signal, then the controller 9
The water circulating pump 1 is allowed to stop working, and the controller 9 is according to first water flow sensor 10 and second water
The water-flow signal of flow sensor 11 calculates the total water current amount of the zero cold water gas heater, then the controller 9
The heating work that the zero cold water gas heater is controlled according to the total water current amount allows user just to commonly use water, overcomes
Sequential operation is made to be easy zero cold water gas water heater working caused by error because single flow sensor control program is complicated
Unstable problem, therefore the present invention has good user experience；And because passing through second water flow sensor 11
User is judged with just allowing the water circulating pump 1 to stop working when water, can save electric energy and extends the recirculated water
The service life of pump 1.
Another aspect of the present invention additionally provides a kind of zero cold water gas heater system, referring to Fig. 8, originally including first
Water pipe 20, the second running water pipe 21, the mouth of a river from the beginning 22, the water mixing valve 23 of at least one connection water spot, return water connecting tube 25, heat
Water outlet pipe and the zero cold water gas heater as described in the third preferred embodiment；The hot water mouth of the water mixing valve 23 passes through
The hot water outlet pipe is connected to hot water effluent's mouth 6, the hot water outlet pipe by the return water connecting tube 25 with it is described
Return water mouth 13 connects；The cold water outlet of the water mixing valve 23 is connect with one end of first running water pipe 20, and described first originally
The other end of water pipe 20 is connected to the mouth of a river from the beginning 22, one end of second running water pipe 21 and the cold water water inlet tap 5
Connection, the other end of second running water pipe 21 are connected to the mouth of a river from the beginning 22.
In embodiments of the present invention, the hot water outlet pipe being connected to hot water effluent's mouth 6 is connected by the return water
Adapter tube 25 is connect with the return water mouth 13, the hot water outlet pipe described in this way, the return water connecting tube 25, the return water mouth 13, institute
Connecting tube 14, the pump water inlet 2, the water circulating pump 1, the pumping line 3, the cold water pipe 4, the heat is stated to hand over
Parallel operation 7 and hot water effluent's mouth 6 may be constructed water circulation heating tube, so that the zero cold water gas heater system has
There is the hydronic function of water, i.e., temperature that is in the hot water outlet pipe 26 and being electrically connected with the controller 9 ought be set
When sensor detects the water temperature in the hot water outlet pipe 26 lower than preset require, the controller 9 will control described
The starting of water circulating pump, so that the water in the hot water outlet pipe 26 constantly passes through return water connecting tube 25, return water mouth 13, the company
Adapter tube 14, the pump water inlet 2, the water circulating pump 1, the pumping line 3, the cold water pipe 4 enter the heat
Exchanger 7 is heated, and is flowed out after the heating from hot water effluent's mouth 6, to realize the water in hot water outlet pipe 26
Circulating-heating.And when user needs with water, at this moment no matter whether the water circulating pump 1 works, and the cold water water inlet tap 5 has
Water flows into and passes through the cold water pipe 4 and reach the heat exchanger 7 and heat and flow after the heating from hot water effluent's mouth 6
Out, so that the cold water pipe 4 has water flowing, at this moment second water flow sensor will generate water-flow signal, and
The controller 9 judges that user is using water according to the water-flow signal, and then the controller 9 allows the water circulating pump 1 to stop
It only works, and the controller 9 is according to the water of first water flow sensor 10 and second water flow sensor 11
Stream signal calculates the total water current amount of the zero cold water gas heater, and then the controller 9 is according to the total water current amount control
The heating work for making the zero cold water gas heater allows user just to commonly use water, overcomes because of single flow sensor
Control program is complicated and sequential operation is made to be easy the unstable problem of caused zero cold water gas water heater working that malfunctions, therefore
The present invention has good user experience；And because judging that user is using water by second water flow sensor 11
When just allow the water circulating pump 1 to stop working, electric energy can be saved and extend the service life of the water circulating pump 1.
In embodiments of the present invention, it should be noted that first check valve 8, second one-way valve 15, third check valve
30 and the 4th check valve 24 all can be one either it is multiple, be not specifically limited herein.The pumping line 3 can be with
It is connect by three-way connection with the cold water pipe 4, the pumping line 3 is also possible to the company of integrated molding with the cold water pipe 4
It connects, is also not specifically limited herein.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those skilled in the art is in technical scope disclosed by the invention, and any changes or substitutions that can be easily thought of, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of zero cold water gas heater, including the water inlet of water circulating pump, pump water inlet, pumping line, cold water pipe, cold water
Mouth, hot water effluent's mouth, heat exchanger and controller, which is characterized in that further include the first water flow sensor and the second water
Flow sensor；
The cold water pipe is connect with the cold water water inlet tap, and the cold water pipe is connect with the water inlet end of the heat exchanger；Institute
The water outlet for stating heat exchanger is connected to hot water effluent's mouth；
The first end of the pump water inlet with hot water effluent's mouth for being connected to, the second end of the pump water inlet and institute
State the water inlet end connection of water circulating pump；
The first end of the pumping line is connect with the water outlet of the water circulating pump, and the second end of the pumping line
It connect to form the first water pipe node with the cold water pipe；First water flow sensor be installed at the pump water inlet or
At the pumping line, second water flow sensor and the first check valve are mounted on the first water pipe node and institute
It states at one section of cold water pipe between cold water water inlet tap；The entrance of first check valve is connected to the cold water water inlet tap, described
The outlet of first check valve is connected to the first water pipe node；
The water circulating pump, first water flow sensor and second water flow sensor are electrically connected with the controller
It connects.
2. zero cold water gas heater according to claim 1, which is characterized in that further include for the hot water effluent
The return water mouth of mouth connection, the return water mouth are connect with the first end of the pump water inlet.
3. zero cold water gas heater according to claim 1, which is characterized in that the first end of the pump water inlet with
To form the second water pipe node, the second water pipe node is located at the cold water water inlet tap and described first for the cold water pipe connection
At one section of cold water pipe between water pipe node；Second water flow sensor and first check valve are mounted on positioned at institute
It states at one section of cold water pipe between the first water pipe node and the second water pipe node.
4. zero cold water gas heater according to claim 3, which is characterized in that further include connecting tube, be installed on it is described
Second one-way valve at connecting tube and the return water mouth for being connected to hot water effluent's mouth, the return water mouth pass through the company
Adapter tube and one section of cold water pipe connection between the second water pipe node and the cold water water inlet tap；The second one-way valve
Entrance be connected to the return water mouth, the outlet of the second one-way valve is connected to the cold water water inlet tap.
5. zero cold water gas heater according to claim 1, which is characterized in that further include third check valve；Described
Three check valves are mounted at the pumping line, and the first end of the entrance of the third check valve and the pumping line
Connection, the outlet of the third check valve is connected to the second end of the pumping line；Alternatively,
The third check valve is mounted at the pump water inlet, and the entrance of the third check valve and the water feeding of water pump
The first end of pipe is connected to, and the outlet of the third check valve is connected to the second end of the pump water inlet.
6. described in any item gas heaters according to claim 1~5, which is characterized in that it further include hot water storage tank, it is described
The water inlet end of hot water storage tank is connected to the water outlet of the heat exchanger, the water outlet of the hot water storage tank and the hot water
Faucet connection.
7. a kind of zero cold water gas heater system, which is characterized in that including the first running water pipe, the second running water pipe, originally
The mouth of a river, at least one connection water mixing valve of water spot, the 4th check valve, return water connecting tube, hot water outlet pipe, connecting tube and such as
Zero cold water gas heater as claimed in claim 2；The return water mouth is connect by the connecting tube with the cold water water inlet tap；
The hot water mouth of the water mixing valve is connected to by the hot water outlet pipe with hot water effluent's mouth, and the hot water outlet pipe is logical
It crosses and the return water connecting tube of the 4th check valve is installed is connect with first running water pipe；4th check valve
Entrance is connected to the hot water outlet pipe, and the outlet of the 4th check valve is connected to first running water pipe；
The cold water outlet of the water mixing valve is connect with one end of first running water pipe, the other end of first running water pipe with
One end of second running water pipe connects, and the other end of second running water pipe is connect with the cold water water inlet tap；It is described
The mouth of a river from the beginning is connect with first running water pipe and second running water pipe.
8. a kind of zero cold water gas heater system, which is characterized in that including the first running water pipe, the second running water pipe, originally
The mouth of a river, at least one connection water mixing valve, the return water connecting tube, hot water outlet pipe and as claimed in claim 2 zero of water spot
Cold water gas heater；
The hot water mouth of the water mixing valve is connected to by the hot water outlet pipe with hot water effluent's mouth, and the hot water outlet pipe is logical
The return water connecting tube is crossed to connect with the return water mouth；
The cold water outlet of the water mixing valve is connect with one end of first running water pipe, the other end of first running water pipe with
The mouth of a river from the beginning connection, one end of second running water pipe are connect with the cold water water inlet tap, second running water pipe
The other end be connected to the mouth of a river from the beginning.
9. a kind of zero cold water gas heater system, which is characterized in that including the first running water pipe, the second running water pipe, originally
The mouth of a river, the water mixing valve of at least one connection water spot, the 4th check valve, return water connecting tube, hot water outlet pipe and as right is wanted
Zero cold water gas heater described in asking 3；
10. a kind of zero cold water gas heater system, which is characterized in that including the first running water pipe, the second running water pipe, originally
The mouth of a river, at least one connection water mixing valve, the return water connecting tube, hot water outlet pipe and as claimed in claim 4 zero of water spot
Cold water gas heater；
The cold water outlet of the water mixing valve is connect with one end of first running water pipe, the other end of first running water pipe with
The mouth of a river from the beginning connection, one end of second running water pipe are connect with the cold water water inlet tap, second running water pipe
The other end be connected to the mouth of a river from the beginning.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610917603.7A CN106369807B (en) | 2016-10-20 | 2016-10-20 | Zero cold water gas heater of one kind and its system |
| PCT/CN2016/103996 WO2018072230A1 (en) | 2016-10-20 | 2016-10-31 | Gas water heater having reduced initial cold water flow and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610917603.7A CN106369807B (en) | 2016-10-20 | 2016-10-20 | Zero cold water gas heater of one kind and its system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106369807A CN106369807A (en) | 2017-02-01 |
| CN106369807B true CN106369807B (en) | 2019-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610917603.7A Active CN106369807B (en) | 2016-10-20 | 2016-10-20 | Zero cold water gas heater of one kind and its system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106369807B (en) |
| WO (1) | WO2018072230A1 (en) |
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| CN113701360B (en) * | 2021-08-31 | 2023-01-03 | 广东万和新电气股份有限公司 | Control method of water heater system, water heater and water heater system |
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Also Published As
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| CN106369807A (en) | 2017-02-01 |
| WO2018072230A1 (en) | 2018-04-26 |
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