CN106091399A - A kind of hot water circulating device, hot water circuit control method and water heater - Google Patents
A kind of hot water circulating device, hot water circuit control method and water heater Download PDFInfo
- Publication number
- CN106091399A CN106091399A CN201610658305.0A CN201610658305A CN106091399A CN 106091399 A CN106091399 A CN 106091399A CN 201610658305 A CN201610658305 A CN 201610658305A CN 106091399 A CN106091399 A CN 106091399A
- Authority
- CN
- China
- Prior art keywords
- water
- hot
- temperature
- hot water
- circulating pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- F24H9/00—Details
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
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)
- Control For Baths (AREA)
Abstract
The open a kind of hot water circulating device of the present invention, it is characterised in that including: circulating line, the water circulating pump being arranged on circulating line, temperature sensor, the controller being connected with water circulating pump, temperature sensor, and the operation display being connected with controller.The present invention is convenient learns fast hot duration automatically, and by operation display can user can sets itself duration under speed hot merit energy, it is ensured that it is i.e. hot water that bath water point is opened, and decreases the waste of unnecessary water, gas and electricity.The present invention also provides for a kind of hot water circuit control method and water heater.
Description
Technical field
The present invention relates to central gas technical field of water heaters, particularly relate to a kind of hot water circulating device, hot water circuit control
Method processed and water heater.
Background technology
Gas heater is when disabling hot water, and generally its burner does not works, and the water in such pipeline can quickly be lowered the temperature cold
But.For being that gas heater can release hot water at any time, the generally hot water end and entering of going out at gas heater adds between cold water end
Dress closed circuit, and hot water circulating device of connecting on this closed circuit.
But, in existing house decoration structure, special circulation line is usually not reserved in gas heater position, leads
Cause can not carry out warm-up cycle.Though the cold water pipe of some gas heaters energy utilization water spot serves as closed circuit, but preheating follows
After ring, the water in cold water pipe also becomes hot water, causes the situation that can not realize i.e. opening i.e. to go out cold water with water spot.
It addition, existing hot water circulating device mostly is the water inlet end being arranged on water heater, the most serious problem is exactly hot water
Device water inlet end (backwater end) temperature not up to design temperature, and water outlet of water heater end temperature is the highest, thus cause product
Comfortableness is poor, affects bathing experience.
Summary of the invention
For problems of the prior art, the present invention propose a kind of heating duration study facilitate adjustable, more economize on electricity
Save the hot water circulating device of gas.
For reaching object above, the present invention adopts the following technical scheme that.
A kind of hot water circulating device, it is characterised in that including: circulating line, the water circulating pump being arranged on circulating line,
Temperature sensor, the controller being connected with water circulating pump, temperature sensor, and the operation display being connected with controller.
As with improvement, being provided with water flow sensor on circulating line, described water flow sensor is with controller even
Connect.
As with improvement, circulating line is provided with the water treating module for purifying water.
The present invention also provides for a kind of hot water circuit control method, it is characterised in that by hot water circulating device as above
Being arranged at the distalmost end water spot of water heater, when water circulating pump is started working, controller is started timing and is passed by temperature
During sensor Real-time Collection hot water temperature, when temperature sensor detects temperature T1 >=design temperature, water circulating pump quits work,
The controller record water circulating pump total duration t of work, at this moment, operation display display temperature control completes.
As further illustrating of above-mentioned hot water circuit control method, it has fast hot merit energy, under speed hot merit energy, and circulation
The operating time of water pump is the water circulating pump total duration t of work of controller record under function of temperature control.
As further illustrating of above-mentioned hot water circuit control method, under speed hot merit energy, user is by operation display
Changing fast hot duration, adjust fast hot duration on the basis of t, adjusting range is 1~30 minute, is accurate to the second.
As further illustrating of above-mentioned hot water circuit control method, it has reservation function: meet within the reservation period
During temperature difference condition, water circulating pump brings into operation, and in water heater heat cycles pipe, the temperature of water is to design temperature;Temperature difference condition sets
Principle is as follows: as T1 < T-TH, water circulating pump is started working;As T1 >=T, water circulating pump quits work;Wherein, T1 is temperature
The temperature that degree sensor detects in real time;T is design temperature, selects in the range of 36 DEG C~60 DEG C;TH is return difference temperature, 2
~select in the range of 10 DEG C.
The present invention also provides for a kind of water heater, including: including: water heater body, entering of being connected on water heater body is cold
Water pipe, go out water heater, and the some water spots being arranged on hot-water outlet pipe, it is characterised in that set at distalmost end water spot
There is hot water circulating device as above.
As with improvement, enter cold water pipe and with water spot between connect and have cold water arm, go out heat at distalmost end water spot
Connect between water pipe and cold water arm and have return pipe, return pipe is provided with check valve.
As with improvement, described hot water circulating device is arranged on return pipe;Or, described hot water circulating device is arranged on
On the hot-water outlet pipe of far-end water spot;Or, described hot water circulating device is arranged on the cold water arm of distalmost end water spot.
Compared with prior art, the invention has the beneficial effects as follows:
One, the devices such as temperature sensor, controller, operation display are carried out organic combination, the convenient heat of study speed automatically
Duration, and user can sets itself duration under speed hot merit energy, it is ensured that it is i.e. hot water that bath water point is opened, and it is unnecessary to decrease
The waste of water, gas and electricity.
Two, by hot water circulating device being arranged at distalmost end water spot, existing circulating device can be solved and be arranged on
The phenomenons such as uneven, the temperature overshot of heating-up temperature that water inlet end exists, more to economize on electricity than existing water recovery apparatus simultaneously, save gas.
Three, the speed heat provided and function of temperature control, on the premise of using cold water arm to serve as part return pipe, it is possible to very well
Guarantee cold water pipe in water be cold water, it is achieved that start has hot water to have the problem of cold water with start, solves common pipeline and changes
The problem that can not use cold water immediately after making.
Accompanying drawing explanation
Fig. 1 show the hot water circulating device structural representation that the present invention provides.
Fig. 2 show the hot water circulating device application structure figure that the present invention provides.
Fig. 3 show the hot water circulating device workflow diagram that the present invention provides.
Description of reference numerals:
1: circulating line, 2: water circulating pump, 3: temperature sensor, 4: controller, 5: operation display, 6: discharge senses
Device, 7: water heater body, 8: enter cold water pipe, 9: hot-water outlet pipe, 10: use water spot, 11: cold water arm, 12: return pipe, 13: unidirectional
Valve, 14: hot water circulating device.
Detailed description of the invention
It is more fully understood that the essence of the present invention, below in conjunction with the accompanying drawings concrete to the present invention for convenience of those skilled in the art
Embodiment is described in detail.
Embodiment one
As it is shown in figure 1, a kind of hot water circulating device, including: circulating line 1, it is arranged on the water circulating pump on circulating line 1
2, temperature sensor 3, the controller 4 being connected with water circulating pump 2, temperature sensor 3, and the operation being connected with controller 4 are aobvious
Show device 5.
During real work, above-mentioned hot water circulating device is arranged on the closed circuit of water heater.As in figure 2 it is shown, when heat
After hydrophone start, water circulating pump 2 works automatically, and controller 4 starts timing and by temperature sensor 3 Real-time Collection hot water temperature
Time, when temperature sensor 3 detects temperature T1 >=design temperature, water circulating pump 2 quits work, and controller 4 records recirculated water
Pump 3 works total duration t, and at this moment, operation display 5 shows that temperature control completes, and prompting user can use hot water.When user opens next time
During water heater, can grow by more than key 3s, controller 4 controls the automatic operating time t of water circulating pump 2, it is achieved the speed of water heater
Heat, more economizes on electricity, saves gas.
In actual applications, according to the different user of practical situation can by the operation display 5 sets itself hot duration of speed,
Fast hot duration is suitably shortened, it is ensured that bath water point instant-heating, adjusting range is 1~30 minute, is accurate on the basis of t
Second.
Further, circulating line 1 is also equipped with water flow sensor 6, described water flow sensor 6 and controller
4 connect, in order to monitor circulating water flow in real time.When circulating water flow is too low, controller controls water circulating pump 2 and improves rotating speed.
Embodiment two
As it is shown on figure 3, a kind of water heater, including: water heater body 7, be connected on water heater body 7 enter cold water pipe 8,
Go out water heater 9, the some water spots 10 being arranged on hot-water outlet pipe 9, it is connected to into cold water pipe 8 with the cold water between water spot 10
Arm 11, connects between the hot-water outlet pipe 9 and cold water arm 11 of distalmost end water spot and has return pipe 12, set on return pipe 12
There are check valve 13 and hot water circulating device 14.
Wherein, described distalmost end water spot refers to that the hot water flowed out from water heater body 7 arrives the path of this use water spot
Farthest.The one-way conduction direction of described check valve 13 is for flow to cold water arm 11 from hot-water outlet pipe 9, in order to utilize cold water arm 11
Serve as closed circuit, it is not necessary to the water return pipeline being directly connected to water heater body 7 is additionally set.Described hot water circulating device 14 is
Hot water circulating device described in embodiment one, the controller of hot water circulating device 14 communicates with water heater master controller.
The water heater that the present embodiment provides has the functions such as temperature control, speed heat, reservation, water purification, and concrete methods of realizing is as follows:
1) function of temperature control: combine shown in Fig. 1, after opening temperature control, water circulating pump 2 starts running, and water heater is started working, when
During temperature T1 >=design temperature that the temperature sensor 3 of circulating device detects, water circulating pump 2 is out of service, controller 4 record
Water circulating pump operating time t.
2) speed hot merit energy: when user uses speed hot merit energy, it is function of temperature control that hot water circulating device then can give tacit consent to operating time
The operating time t of lower record.In actual applications, can be set voluntarily by operation display 5 according to the different user of practical situation
The hot duration of constant speed, suitably shortens fast hot duration on the basis of t, it is ensured that bath water point instant-heating, and adjusting range is 1~30 point
Clock, is accurate to the second.
3) reservation function: when meeting temperature difference condition in preengaging the period, in circulating device, water circulating pump brings into operation, hot water
Device is by the temperature of water in heat cycles pipe to target set point, and the scope that can set is as 36 DEG C~60 DEG C.It is as follows that the temperature difference sets principle:
As T1 < T-THTime, water circulating pump is started working;As T1 >=T, water circulating pump quits work;Wherein T1 is real-time
Temperature, circulating device temperature sensor 3 temperature detected in real time;T is design temperature, the scope that can set as 36 DEG C~60 DEG C, TH
For return difference temperature, can set point be 2~10 DEG C, system default 3 DEG C.
4) water purification function: this kind of circulating device also can embedded pure water processing module, make user enjoy while comfortable bathing
By healthy bathing mode.
A kind of water heater that the present embodiment provides, it has some benefit following:
1) problem that hot water circulating device is arranged on the temperature overshot that water feeding of heater end exists is it solved.
2) it provides fast hot merit energy and function of temperature control, it is possible to well ensure that water is cold water in cold water pipe, it is achieved that open
Machine has hot water to have the problem of cold water with start, solves can not making immediately of existing after replacing traditional return pipe with cold water arm
By the problem of cold water.
3) automatically learn fast hot duration, and user can sets itself duration under speed hot merit energy, it is ensured that bath water point is opened
Opening is i.e. hot water, decreases the waste of unnecessary water, gas and electricity.
The essence of the present invention has been described in detail by above detailed description of the invention, but can not come the present invention's with this
Protection domain limits.It should be evident that under the enlightenment of essence of the present invention, the art those of ordinary skill also can enter
Row many improve and modify, it should be noted that these improve and modify all fall the present invention claims it
In.
Claims (10)
1. a hot water circulating device, it is characterised in that including: circulating line, the water circulating pump being arranged on circulating line, temperature
Degree sensor, the controller being connected with water circulating pump, temperature sensor, and the operation display being connected with controller.
A kind of hot water circulating device the most according to claim 1, it is characterised in that be provided with discharge on circulating line
Sensor, described water flow sensor is connected with controller.
A kind of hot water circulating device the most according to claim 1, it is characterised in that be provided with on circulating line for only
Change the water treating module of water quality.
4. a hot water circuit control method, it is characterised in that by the hot water circuit as described in any one in claim 1-3
Device is arranged at the distalmost end water spot of water heater, and when water circulating pump is started working, controller starts timing and by temperature
During degree sensor Real-time Collection hot water temperature, when temperature sensor detects temperature T1 >=design temperature, water circulating pump stops
Work, the controller record water circulating pump total duration t of work, at this moment, operation display display temperature control completes.
Hot water circuit control method the most according to claim 4, it is characterised in that it has fast hot merit energy, in speed hot merit
Under energy, the operating time of water circulating pump is the water circulating pump total duration t of work of controller record under function of temperature control.
Hot water circuit control method the most according to claim 5, it is characterised in that under speed hot merit energy, user is by behaviour
Making display and change fast hot duration, adjust fast hot duration on the basis of t, adjusting range is 1~30 minute, is accurate to the second.
Hot water circuit control method the most according to claim 4, it is characterised in that it has reservation function: when reservation
When meeting temperature difference condition in Duan, water circulating pump brings into operation, and in water heater heat cycles pipe, the temperature of water is to design temperature;
It is as follows that temperature difference condition sets principle:
As T1 < T-TH, water circulating pump is started working;
As T1 >=T, water circulating pump quits work;
Wherein, T1 is the temperature that temperature sensor detects in real time;
T is design temperature, selects in the range of 36 DEG C~60 DEG C;
TH is return difference temperature, selects in the range of 2~10 DEG C.
8. a water heater, including: including: water heater body, be connected on water heater body enters cold water pipe, goes out water heater,
And the some water spots being arranged on hot-water outlet pipe, it is characterised in that it is provided with such as claim 1-3 at distalmost end water spot
Hot water circulating device described in middle any one.
A kind of water heater the most according to claim 8, it is characterised in that enter cold water pipe and with water spot between connect have cold
Water arm, connects between the hot-water outlet pipe and cold water arm of distalmost end water spot and has return pipe, be provided with unidirectional on return pipe
Valve.
A kind of water heater the most according to claim 9, it is characterised in that described hot water circulating device is arranged on return pipe
On;
Or, described hot water circulating device is arranged on the hot-water outlet pipe of distalmost end water spot;
Or, described hot water circulating device is arranged on the cold water arm of distalmost end water spot.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610658305.0A CN106091399A (en) | 2016-08-11 | 2016-08-11 | A kind of hot water circulating device, hot water circuit control method and water heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610658305.0A CN106091399A (en) | 2016-08-11 | 2016-08-11 | A kind of hot water circulating device, hot water circuit control method and water heater |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106091399A true CN106091399A (en) | 2016-11-09 |
Family
ID=57455757
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610658305.0A Pending CN106091399A (en) | 2016-08-11 | 2016-08-11 | A kind of hot water circulating device, hot water circuit control method and water heater |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106091399A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106247629A (en) * | 2016-08-29 | 2016-12-21 | 广东万家乐燃气具有限公司 | Fuel gas water heating system based on wireless temperature-measuring sensor and preheating control method |
CN106642705A (en) * | 2016-12-08 | 2017-05-10 | 广东万家乐燃气具有限公司 | Central hot water circulating system of gas water heater |
CN106813376A (en) * | 2017-03-09 | 2017-06-09 | 芜湖美的厨卫电器制造有限公司 | Gas heater and its control method |
CN106871457A (en) * | 2017-03-09 | 2017-06-20 | 芜湖美的厨卫电器制造有限公司 | Water heater and its control method |
CN106871458A (en) * | 2017-03-09 | 2017-06-20 | 芜湖美的厨卫电器制造有限公司 | Water heater and its control method |
CN106885377A (en) * | 2017-03-09 | 2017-06-23 | 芜湖美的厨卫电器制造有限公司 | Water heater and its control method |
CN107036291A (en) * | 2017-05-10 | 2017-08-11 | 广东万家乐燃气具有限公司 | A kind of gas heater hot water circulating device |
CN107192134A (en) * | 2017-05-09 | 2017-09-22 | 广东万家乐燃气具有限公司 | A kind of fuel gas water heating system and its self study pre-heating mean |
CN110285578A (en) * | 2019-05-13 | 2019-09-27 | 广东万家乐燃气具有限公司 | A kind of zero cold water circulating system |
CN110906558A (en) * | 2019-11-01 | 2020-03-24 | 青岛经济技术开发区海尔热水器有限公司 | Heating control method and device |
CN111350839A (en) * | 2020-05-25 | 2020-06-30 | 宁波方太厨具有限公司 | Switching valve, circulating booster water heater and circulating booster system of water heater |
CN112197439A (en) * | 2020-10-09 | 2021-01-08 | 珠海格力电器股份有限公司 | Gas water heater control method, device and system and gas water heater |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004271102A (en) * | 2003-03-11 | 2004-09-30 | Mitsubishi Electric Corp | Heat pump water heater |
CN103162414A (en) * | 2011-12-09 | 2013-06-19 | 珠海格力电器股份有限公司 | Water heater and water return system and control method thereof |
CN103925703A (en) * | 2014-01-16 | 2014-07-16 | 中山市汉功电器有限公司 | Electric water heater and control method thereof |
CN104296387A (en) * | 2013-07-19 | 2015-01-21 | 珠海格力电器股份有限公司 | Water heater control method and system |
CN104566929A (en) * | 2014-12-29 | 2015-04-29 | 广东万家乐燃气具有限公司 | Gas water heater and control method |
CN105674577A (en) * | 2016-03-26 | 2016-06-15 | 广东万家乐燃气具有限公司 | Hot water circulation control system with autonomous learning ability |
CN206207747U (en) * | 2016-08-11 | 2017-05-31 | 广东万家乐燃气具有限公司 | A kind of hot water circulating device and water heater |
-
2016
- 2016-08-11 CN CN201610658305.0A patent/CN106091399A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004271102A (en) * | 2003-03-11 | 2004-09-30 | Mitsubishi Electric Corp | Heat pump water heater |
CN103162414A (en) * | 2011-12-09 | 2013-06-19 | 珠海格力电器股份有限公司 | Water heater and water return system and control method thereof |
CN104296387A (en) * | 2013-07-19 | 2015-01-21 | 珠海格力电器股份有限公司 | Water heater control method and system |
CN103925703A (en) * | 2014-01-16 | 2014-07-16 | 中山市汉功电器有限公司 | Electric water heater and control method thereof |
CN104566929A (en) * | 2014-12-29 | 2015-04-29 | 广东万家乐燃气具有限公司 | Gas water heater and control method |
CN105674577A (en) * | 2016-03-26 | 2016-06-15 | 广东万家乐燃气具有限公司 | Hot water circulation control system with autonomous learning ability |
CN206207747U (en) * | 2016-08-11 | 2017-05-31 | 广东万家乐燃气具有限公司 | A kind of hot water circulating device and water heater |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106247629A (en) * | 2016-08-29 | 2016-12-21 | 广东万家乐燃气具有限公司 | Fuel gas water heating system based on wireless temperature-measuring sensor and preheating control method |
CN106642705A (en) * | 2016-12-08 | 2017-05-10 | 广东万家乐燃气具有限公司 | Central hot water circulating system of gas water heater |
CN106885377B (en) * | 2017-03-09 | 2020-08-07 | 芜湖美的厨卫电器制造有限公司 | Water heater and control method thereof |
CN106813376B (en) * | 2017-03-09 | 2021-01-08 | 芜湖美的厨卫电器制造有限公司 | Gas water heater and control method thereof |
CN106871458A (en) * | 2017-03-09 | 2017-06-20 | 芜湖美的厨卫电器制造有限公司 | Water heater and its control method |
CN106885377A (en) * | 2017-03-09 | 2017-06-23 | 芜湖美的厨卫电器制造有限公司 | Water heater and its control method |
CN106871457A (en) * | 2017-03-09 | 2017-06-20 | 芜湖美的厨卫电器制造有限公司 | Water heater and its control method |
CN106871457B (en) * | 2017-03-09 | 2020-10-13 | 芜湖美的厨卫电器制造有限公司 | Water heater and control method thereof |
CN106813376A (en) * | 2017-03-09 | 2017-06-09 | 芜湖美的厨卫电器制造有限公司 | Gas heater and its control method |
CN106871458B (en) * | 2017-03-09 | 2020-08-07 | 芜湖美的厨卫电器制造有限公司 | Water heater and control method thereof |
CN107192134A (en) * | 2017-05-09 | 2017-09-22 | 广东万家乐燃气具有限公司 | A kind of fuel gas water heating system and its self study pre-heating mean |
CN107036291A (en) * | 2017-05-10 | 2017-08-11 | 广东万家乐燃气具有限公司 | A kind of gas heater hot water circulating device |
CN110285578A (en) * | 2019-05-13 | 2019-09-27 | 广东万家乐燃气具有限公司 | A kind of zero cold water circulating system |
CN110906558A (en) * | 2019-11-01 | 2020-03-24 | 青岛经济技术开发区海尔热水器有限公司 | Heating control method and device |
CN110906558B (en) * | 2019-11-01 | 2022-06-14 | 青岛经济技术开发区海尔热水器有限公司 | Heating control method and device |
CN111350839A (en) * | 2020-05-25 | 2020-06-30 | 宁波方太厨具有限公司 | Switching valve, circulating booster water heater and circulating booster system of water heater |
CN111350839B (en) * | 2020-05-25 | 2020-08-28 | 宁波方太厨具有限公司 | Switching valve, circulating booster water heater and circulating booster system of water heater |
CN112197439A (en) * | 2020-10-09 | 2021-01-08 | 珠海格力电器股份有限公司 | Gas water heater control method, device and system and gas water heater |
CN112197439B (en) * | 2020-10-09 | 2021-10-26 | 珠海格力电器股份有限公司 | Gas water heater control method, device and system and gas water heater |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106091399A (en) | A kind of hot water circulating device, hot water circuit control method and water heater | |
CN105222214B (en) | Solar thermal collector and air source heat pump combined heat water system and control method | |
CN106500343A (en) | A kind of control method of central fuel gas water heating device | |
CN108036497A (en) | A kind of gas heater and its preheating start-up and shut-down control method | |
CN109297179A (en) | Electric auxiliary preheating circulation gas water heater, preheating circulation system and control method | |
CN106642705A (en) | Central hot water circulating system of gas water heater | |
CN203034260U (en) | Washing machine with hot water function | |
CN201396935Y (en) | Heating system | |
CN203928412U (en) | A kind of domestic energy-saving hot water supply system based on waste heat recovery | |
CN106885372A (en) | Hot water cyclesystem and its control method | |
CN209960766U (en) | null | |
CN110057106B (en) | Zero cold water preheating device for gas water heater and control method thereof | |
CN110207390A (en) | Shutdown control method for gas water heater | |
CN203240739U (en) | Mixed type multipurpose energy-saving water heater | |
CN204853921U (en) | Instant heating type dual -purpose electric water heater device of water storage | |
CN206207747U (en) | A kind of hot water circulating device and water heater | |
CN107120841A (en) | It is a kind of that the hot water circulating device of return difference temperature need not be set | |
CN208845828U (en) | A kind of intelligent constant-temperature water-saving water faucet | |
CN110207388B (en) | Intelligent shutdown control method for gas water heater | |
CN103277923B (en) | Energy-saving control method formed by combining heat pump and solar water heater | |
CN209558683U (en) | It is distributed the heat storage type domestic hot-water circulatory system | |
TW202107025A (en) | Water preheating system and water preheating mothod | |
CN205402905U (en) | Hot spring water intelligence constant temperature system | |
CN204268576U (en) | A kind of hot-water heating system that can ensure constant-temperature effluent | |
CN204438544U (en) | A kind of combined type water heater |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |
|
RJ01 | Rejection of invention patent application after publication |