CN106440330A - Gas water heater, gas hot water system, and gas water heater preheating method - Google Patents
Gas water heater, gas hot water system, and gas water heater preheating method Download PDFInfo
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- CN106440330A CN106440330A CN201610703867.2A CN201610703867A CN106440330A CN 106440330 A CN106440330 A CN 106440330A CN 201610703867 A CN201610703867 A CN 201610703867A CN 106440330 A CN106440330 A CN 106440330A
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- water
- preheating
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- temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/107—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 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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a gas water heater, a gas hot water system, and a gas water heater preheating method; the gas water heater comprises a housing, and a water inlet, a backwater port and a water outlet arranged on the bottom of the housing; a controller used for controlling the gas water heater is arranged in the housing; a water inlet temperature sensor, a combustor, a water pot and a water outlet temperature sensor are connected in series in sequence on a pipeline from the water inlet to the water outlet; a backwater pipe is arranged between the backwater port and the water inlet temperature sensor, and provided with a water pump and a backwater non return valve; the backwater non return valve is arranged between the water outlet of the water pump and the water inlet temperature sensor, and flows from the water pump to the water inlet temperature sensor; the gas in the water heater pipe can be discharged from an exhaust port, thus preventing preheating blocking phenomenon, relatively accurately determining whether to start or stop the preheating, and truly realizing the gas water heater preheating function from the user angles.
Description
Technical field
The present invention relates to gas heater technical field, particularly to a kind of gas heater, fuel gas water heating system and
The pre-heating mean of gas heater.
Background technology
The various gas heaters with preheating function on market successively in recent years, achieves combustion gas to a certain extent
The instant-heating function of water heater.The general gas heater with preheating function is to be entered by the temperature judging backwater end (water inlet)
Row heating or stop, but due to user pipe install different, the hot water radiator in its pipeline is different, exist water pump frequency
Heavy open or water heater backwater end (water inlet) water temperature is very high but situation that water temperature of in water outlet of water heater end or pipeline is very low, this
Kind of situation can make preheating function be not activated by, and then leads to user still can exist in far-end water spot water to use warm water
It is not the problem of hot water.In addition the gas heater preheating progress of existing market upper band preheating function is not more intuitively reminded
Mode, experience is poor.
Content of the invention
In view of this, one of the object of the invention is to propose a kind of gas heater, fuel gas water heating system and combustion gas heat
The pre-heating mean of hydrophone, to solve the problems, such as under preheating mode that water pump is frequently restarted and to preheat water temperature not enough.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that：
A kind of gas heater, including housing and be arranged on the water inlet of described housing bottom, water return outlet (4) and water outlet
Mouthful, it is provided with the controller for controlling described gas heater in housing, by described water inlet to described delivery port
It is sequentially connected in series on pipeline and is provided with inflow temperature sensor, burner, water pot and leaving water temperature sensors, in water return outlet to water inlet
Temperature sensor is additionally provided with water return pipeline, is provided with water pump and backwater check valve, described backwater list on described water return pipeline
It is arranged on the delivery port of described water pump to described inflow temperature sensor to valve, and described backwater check valve is by described water pump
Flow to described inflow temperature sensor, described inflow temperature sensor, leaving water temperature sensors and water pump all with described control
Device signal connects.
Further, it is connected to the bottom of described water pot by the pipeline of described burner to described water pot, by described water pot
Draw to the pipeline of described delivery port from the bottom of described water pot.
Further, it is additionally provided with discharge outlet, the bottom UNICOM of described discharge outlet and described water pot in described housing bottom.
Further, it is additionally provided with exhaust outlet in described housing bottom, described exhaust outlet and described water return pipeline UNICOM.
Further, also include arranging preheating state-visibility gasifying device on the housing, described preheating state-visibility
Gasifying device includes mounting bracket and the display device being disposed thereon, and described display device includes preheating progress display block and sets
Standby symbol display areas block, described preheating progress display block includes at least three show bars, described show bar be arranged in a linear and
Interval setting.
Further, described device symbols display block includes the water pump display block for showing water pump symbol, and/
Or, for the heating display block showing preheating mode startup, and/or, for showing the insulation viewing area of preheating insulation state
Block.
Further, described preheating progress display block includes four show bars, and described four show bars are transversely arranged to be in
Linearly, and be arranged on described display device bottom.
Further, described display device also includes the temperature display block for showing water temperature and is used for showing the time
Time showing block.
Further, the LED that described device symbols display block and/or described preheating progress display block are integrated shows
Screen.
Further, described show bar is charactron, and/or, described temperature display block includes the number of two figures of eight
Code pipe, and/or, described time showing area includes the charactron of four figures of eight.
Further, described preheating state-visibility gasifying device also includes buzzer and/or loudspeaker.
For reaching above-mentioned purpose, present invention also offers technical scheme below：
A kind of fuel gas water heating system, is provided with gas heater as above, also includes some use water spots and feed pipe
Road, described supply channel includes being connected in parallel to the cold water pipeline of described use water spot by described water supply pipe, by described gas and hot water
The delivery port of device is connected in parallel to the hot water line of described water spot and is connected by tap water pipe line to enter to the first of described water return outlet
Water pipe, the distalmost end of described hot water line and described cold water pipeline is provided with the check valve being flowed to cold water pipeline by hot water line.
Further, described supply channel also includes the second water inlet pipe, and described second water inlet pipe one end is connected to described
One water inlet pipe, the other end is connected to described water inlet, is provided with water inlet described in single flow direction on described second water inlet pipe
Water feeding one-way valve.
For reaching above-mentioned purpose, present invention also offers technical scheme below：
A kind of pre-heating mean for above-mentioned gas heater, comprises the following steps：
Step one, sets preheating mode according to preheating number of times and/or preheating insulation duration and/or return difference temperature；
Step 2, under arbitrary preheating mode, if Tc<Ts-T0, then start water pump and burner starts to preheat；
Step 3, under arbitrary preheating mode, if Tj >=Ts-1, closes burner and stops heating；
Wherein, Tc is the temperature that described leaving water temperature sensors real-time detection arrives, and Ts is the artificial preferred temperature setting, T0
For return difference temperature, and 3 DEG C≤T0≤10 DEG C, the temperature that Tj arrives for inflow temperature sensor real-time detection.
Further, described step 2 also includes following condition：
If the discharge flowing through burner is more than 1L/min and starts discharge less than water heater, do not start water pump and combustion
Burner.
Further, further comprising the steps of：
Step 4, after in Tj >=Ts-1, burner cuts out, water pump remains in operation and carries out water route Posterior circle, and behind water route
The time of circulation is less than 5 minutes.
Further, in described step 4, the metacyclic time t in described water route is determined by preheated burning time T, specifically
For：If T≤2, t=1；If 2 ＜ T≤4, t=2；If 4 ＜ T≤6, t=3；If 6 ＜ T≤8, t=4；If 8 ＜ T,
T=5, chronomere is minute.
Further, further comprising the steps of：
Step 5, at the end of arbitrary preheating mode, makes prompting by audio unit and/or light-emitting device.
Further, also include the step for status visualization will be preheated, specific as follows：
Step 6, after preheating function on, lights water pump display block, heating display block and preheating progress viewing area
Four show bars of block；
Step 7, as Ts-2 ＞ Tj >=Ts-4, described four show bars extinguish one by first end to the other end, remaining
Three show bars are lighted；
Step 8, as Ts-1 ＞ Tj >=Ts-2, described four show bars extinguish two by first end to the other end, remaining
Two show bars are lighted；
Step 9, as Tj >=Ts-1, burner stops heating, and heating display block is extinguished simultaneously, and water pump remains in operation,
Start water route Posterior circle, described four show bars extinguish three by first end to the other end, a remaining show bar is lighted；
Step 10, at the end of the Posterior circle of water route, water pump shuts down, and described four show bars all extinguish, water simultaneously
Pump display block is extinguished；
Wherein, Ts is the artificial preferred temperature setting, the temperature that Tj arrives for inflow temperature sensor real-time detection.
Step 11, if be arranged on preheating mode, is provided with the preheating insulation time, then after preheating function on, point
Bright insulation display block, shows countdown in time showing block simultaneously.
Step 12, when the countdown showing in described time showing block is zero, extinguishes insulation display block and time
Display block, meanwhile, described buzzer and/or loudspeaker send auditory tone cues.
Step 13, after preheating function on, puts brightness temperature display block always and shows that leaving water temperature senses in real time
The temperature that device detects.
With respect to prior art, the pre-heating mean of gas heater of the present invention has the advantage that：
1st, the pre-heating mean of gas heater of the present invention, when leaving water temperature is detected and reaching startup and require, opens
Dynamic burning is heated to circulation line water, when water inlet detects water temperature and reaches stopping and require, stops burning and go forward side by side following behind line pipe road
In ring and water temperature；Be equivalent to pipeline start up by preheating to be determined by outlet water temperature of water heater, preheating stops being determined by water feeding of heater temperature, from
And easily solve the gas heater water pump with preheating function frequently restart, user think in real time using hot water but be warm water in fact
Bottleneck, greatly promotes Consumer's Experience sense.
2nd, the pre-heating mean of gas heater of the present invention, flow through water heater discharge be more than 1L/min and
When starting discharge less than water heater, even if meeting pipeline start up by preheating condition, preheating does not also start, and effectively prevent the product of high-temperature water
Raw.
Preheating progress can be similar to countdown by striation by the 3rd, pre-heating mean of gas heater of the present invention
Display mode, more intuitively presents, and also has preheating insulation remaining time to show, significantly improves product user body
Test.
Brief description
The accompanying drawing constituting the part of the present invention is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of the gas heater described in the embodiment of the present invention；
Fig. 2 is the structural representation of the fuel gas water heating system described in the embodiment of the present invention；
Fig. 3 is the structural representation preheating state-visibility gasifying device described in the embodiment of the present invention.
Description of reference numerals：
1- housing, 2- controller, 3- water inlet, 4- water return outlet, 5- delivery port, 6- inflow temperature sensor, 7- burner,
8- water pot, 9- leaving water temperature sensors, 10- water pump, 11- backwater check valve, 12- discharge outlet, 13- exhaust outlet, 14- first is intake
Pipe, 15- second water inlet pipe, 16- water feeding one-way valve, 17- mounting bracket, 18- display device, 19- water pump display block, 20- temperature
Degree display block, 21- time showing block, 22- show bar, 23- heats display block.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combine.
In addition, being related to that the step one of method, step 2, step are third in the present invention, each step numeral below is simultaneously
Do not represent the sequencing of step, some steps are selective coordinations, some steps apply to the logical of whole method
With condition, therefore, the sequence of steps in the inventive method it should according in it logical relation determine sequencing.
Ibid, " first water inlet pipe ", " the second water inlet pipe ", " first end " of being related in the present invention etc., therein
First, second etc., it is only used for differentiation effect, be not intended to order of representation or significance level.
Below with reference to accompanying drawing, embodiments of the invention are described in detail.
Fig. 1 is the structural representation of the gas heater described in the embodiment of the present invention, as illustrated, this gas heater
Water inlet 3, water return outlet 4 and the delivery port 5 including housing 1 and being arranged on described housing 1 bottom, is provided with use in housing 1
In the controller 2 controlling described gas heater, the pipeline by described water inlet 3 to described delivery port 5 is sequentially connected in series and sets
It is equipped with inflow temperature sensor 6, burner 7, water pot 8 and leaving water temperature sensors 9, in water return outlet 4 to inflow temperature sensor 6
It is additionally provided with water return pipeline, water pump 10 and backwater check valve 11, described backwater check valve 11 are provided with described water return pipeline
The delivery port 5 being arranged on described water pump 10 is to described inflow temperature sensor 6, and described backwater check valve 11 is by described water
Pump 10 flows to described inflow temperature sensor 6, is connected to the bottom of described water pot 8 by the pipeline of described burner 7 to described water pot 8
Portion, is drawn from the bottom of described water pot 8 by the pipeline of described water pot 8 to described delivery port 5.Also set up in described housing 1 bottom
There are discharge outlet 12, the bottom UNICOM of described discharge outlet 12 and described water pot 8.It is additionally provided with exhaust outlet 13 in described housing 1 bottom,
Described exhaust outlet 13 and described water return pipeline UNICOM.
Wherein, water pump 10 is used to the power of offer system water circulation and overcomes the resistance of ducting of system, and its operating
Situation can be controlled by controller 2, when backwater check valve 11 ensures to have water return pipeline to install, it is to avoid flowed into by water inlet 3
Cold water enters the exit of water pump 10, and system return is passed through water return outlet 4 and flowed into burner 7 with backwater check valve 11；Inflow temperature
Sensor 6, as water inlet (backwater) temperature detecting unit, is mainly used as preheating and stops judging；Controller 2 passes through screw and support
It is fixed on inside housing 1, as the control centre of whole system；Water pot 8 plays temperature buffer effect；Water side temperature sensor
For outlet water temperature of water heater detection, judge simultaneously as water heater pipeline start up by preheating.
After opening preheating function, if the temperature that leaving water temperature sensors 9 are detected meets pipeline start up by preheating condition, control
Device 2 controls water pump 10 to operate, and by current by water return outlet 4 suction, flows through burner 7 and is heated, and flows into water pot 8, hot water afterwards
After the mixing buffering of water pot 8, temperature is relatively stable, eventually passes delivery port 5 and flows out in arrival hot water line；Start simultaneously at
Whether the temperature of detection inflow temperature sensor 6 reaches preheating stop condition, reaches stopping when backwater (water inlet) detects water temperature
During requirement, stop burning and carrying out in the Posterior circle of water route and water temperature.
In addition, the gas heater described in the embodiment of the present invention, can be by discharge outlet 12 by the water in whole water heater
Quickly drain net.When having gas inside Water heater pipeline, by exhaust outlet 13, pipeline gas can be discharged, prevent pre-
Thus relatively accurate, the phenomenon of hot plugging plug, judges whether preheating starts, stops, really goes to realize gas and hot water from the angle of user
The preheating function of device.
Fig. 2 is the structural representation of the fuel gas water heating system that application has above-mentioned gas heater, as shown in FIG., this combustion gas
Hot-water heating system, except being provided with gas heater as above, also includes some use water spots and supply channel, described feed pipe
Road include by described water supply pipe be connected in parallel to described use water spot cold water pipeline, by described gas heater delivery port 5 simultaneously
It is coupled to the hot water line of described use water spot and connected by tap water pipe line to the first water inlet pipe 14 of described water return outlet 4, described
The distalmost end of hot water line and described cold water pipeline is provided with the check valve being flowed to cold water pipeline by hot water line.Supply channel is also
Including the second water inlet pipe 15, described second water inlet pipe 15 one end is connected to described first water inlet pipe 14, and the other end is connected to described
Water inlet 3, is provided with the water feeding one-way valve 16 of water inlet 3 described in single flow direction on described second water inlet pipe 15.
In the present embodiment, the first water inlet pipe 14 and the second water inlet pipe 15 share one section of water pipe, then again parallel connection respectively with
Water return outlet 4 and water inlet 3 connect, and so can save the length of water pipe.In other embodiments, the first water inlet pipe 14 and second
Water inlet pipe 15 can also be distinguished and is directly connected with running water pipe.
, in preheating, its circulating water loop is specific as follows for fuel gas water heating system described in the present embodiment：Water pump 10-- backwater
Check valve 11-- inflow temperature sensor 6-- burner 7-- water pot 8-- leaving water temperature sensors 9-- delivery port 5-- hot-water line
Road -- hot water line's distalmost end check valve -- cold water pipeline -- the first water inlet pipe 14-- water return outlet 4-- water pump 10.
Cold water pipeline can be served as water return pipeline in the presence of check valve by the fuel gas water heating system described in the present embodiment,
Therefore inflow temperature sensor 6 is referred to as backwater (water inlet) probe, and pipeline start up by preheating is judged by going out water heater temperature's degree, preheating
The control mode stopping being judged by water heater backwater (water inlet) temperature leads to water heater to start combustion hence it is evident that reducing user using cold water
The phenomenon burnt.
The embodiment of the invention also discloses the pre-heating mean of a kind of above-mentioned gas heater and fuel gas water heating system, specifically
Comprise the following steps：
Step one, sets preheating mode according to preheating number of times and/or preheating insulation duration and/or return difference temperature；
Step 2, under arbitrary preheating mode, if Tc<Ts-T0, then start water pump 10 and burner 7 starts to preheat；
Step 3, under arbitrary preheating mode, if Tj >=Ts-1, closes burner 7 and stops heating；
After in Tj >=Ts-1, burner 7 cuts out, water pump 10 remains in operation and carries out water route Posterior circle, with lift line
Even water temperature, the metacyclic time t in described water route is determined by preheated burning time T, specially：If T≤2, t=1；If 2
＜ T≤4, then t=2；If 4 ＜ T≤6, t=3；If 6 ＜ T≤8, t=4；If 8 ＜ T, t=5, chronomere is point
Clock；
Step 5, at the end of arbitrary preheating mode, makes prompting by audio unit and/or light-emitting device.
Wherein, Tc is the temperature that described leaving water temperature sensors 9 real-time detection arrives；Ts is the artificial preferred temperature setting,
It is usually 36 DEG C≤Ts≤48 DEG C；T0 is return difference temperature, and the setting range of T0 is 3 DEG C≤T0≤10 DEG C, and system default value is 5
℃；The temperature that Tj arrives for inflow temperature sensor 6 real-time detection.
If in addition, the discharge flowing through burner 7 is more than 1L/min and starts discharge less than water heater, even if on meeting
The pipeline start up by preheating condition stated, does not start water pump 10 yet and burner 7 is preheated.
Preheating mode described in step one, includes 0,3,6,9,12,18,24,30 8 patterns, represents respectively：Preheating
Once, carry out preheating insulation in 0.5h, carry out preheating insulation, enter preheating insulation in 1.5 hours ... .., acquiescence in 1 hour
Preheating insulation 2 hours, i.e. 12 pattern；Preheating mode can arrange return difference temperature after being provided with, and the data area that can arrange is：
3 DEG C to 10 DEG C, give tacit consent to 5 DEG C, preserve after being provided with and arrange.Preheating mode is provided with 0 pattern, preheats and only hold under this pattern
Row once, is equivalent to the economic model of system, meets economical user's request.When preheating mode is chosen as 0 pattern, preheating completes
Buzzer prompting user can use hot water afterwards, selects to only need to during other patterns carry when just past the preheating insulation time
Show user, because all can be using required hot water it is not necessary to each all burnt all points out user within the preheating insulation period.
In addition, within the preheating insulation period that user sets, when outlet water temperature of water heater is detected and reaching startup and require, open
Dynamic burning is heated to circulation line water, and when backwater (water inlet) detects water temperature and reaches stopping and require, stopping is burnt and carried out water
In the Posterior circle of road and water temperature.
If user is disposably for a long time using cold water, has a small amount of cold water and pass through water inlet 3 and water return outlet 4 inflow water heater
Reach in hot-water line, lead to system to be judged by accident, warm water is reheated once, and then leads to there may be overheating problem.Above-mentioned
Pre-heating mean, when the discharge flowing through water heater is more than 1L/min and starts discharge less than water heater, even if meet pre-
Thermal starting condition, preheating does not also start, and is prevented effectively from overheating problem.
Above-mentioned pre-heating mean, when leaving water temperature is detected and reaching startup and require, starts burning and circulation line water is added
Heat, when water inlet detects water temperature and reaches stopping and require, stops burning and goes forward side by side in the Posterior circle of line pipe road and water temperature；Be equivalent to preheating
Start and determined by outlet water temperature of water heater, preheating stops being determined by water feeding of heater temperature, thus easily solving band preheating function
Gas heater water pump 10 frequently restart, user think in real time using hot water but be the bottleneck of warm water in fact, greatly promote user
Experience sense.
Above-mentioned pre-heating mean, it is available to have multiple preheating modes, meets the needs of different users：Existing Eco-power
Single preheating mode, has the preheating mode of other different durations available again, within the preheating insulation period, all can use required
Hot water, and its return difference temperature can interior setting on a large scale, exceed insulation the period then automatically exit from preheating function.
Embodiments of the invention also disclose a kind of preheating state-visibility gasifying device of gas heater, including mounting bracket
17 include preheating progress display block and device symbols viewing area with the display device 18 being disposed thereon, this display device 18
Block, this device symbols display block include for show water pump symbol water pump display block 19, be used for showing that preheating mode opens
Dynamic heating display block 23 and the insulation display block for showing preheating insulation state.This preheating progress display block includes
Four spaced show bars 22, four show bars 22 are transversely arranged linearly, and are arranged on described display device 18 bottom
Portion.Display device 18 also includes the temperature display block 20 for showing water temperature and the time showing block for showing the time
21.Temperature display block 20 includes the charactron of two figures of eight, and time showing area includes the charactron of four figures of eight.?
In the present embodiment, show bar 22 can also be charactron.In other embodiments, device symbols display block and preheating progress show
Show the LED display that block is integrated, so, show bar 22 can be formed by showing different regions by LED display.
In other embodiments, preheating state-visibility gasifying device also includes buzzer or loudspeaker, or both have, and uses
In sending auditory tone cues.
The embodiment of the present invention, also discloses a kind of preheating status visualization side for above-mentioned preheating state-visibility gasifying device
Method, specifically includes following steps：
Step one, after preheating function on, lights water pump display block 19, heating display block 23 and preheating progress and shows
Show four show bars 22 of block, and put brightness temperature display block 20 always and show that inflow temperature sensor 6 detects in real time
Temperature；
Step 2, as Ts-2 ＞ Tj >=Ts-4, described four show bars 22 extinguish one by first end to the other end, remain
Excess-three show bar 22 is lighted；
Step 3, as Ts-1 ＞ Tj >=Ts-2, described four show bars 22 extinguish two by first end to the other end, remain
Two show bars 22 of remaininging are lighted；
Step 4, as Tj >=Ts-1, burner 7 stops heating, and heating display block 23 is extinguished simultaneously, and water pump 10 continues
Operating, starts water route Posterior circle, and described four show bars 22 extinguish three by first end to the other end, a remaining show bar 22
Light；
Step 5, at the end of the Posterior circle of water route, water pump 10 shuts down, and described four show bars 22 all extinguish, with
When water pump display block 19 extinguish；
Step 6, if when arranging preheating mode, being provided with the preheating insulation time, then, after preheating function on, lights
Insulation display block, shows countdown in time showing block 21 simultaneously；
Step 7, when the countdown of described time showing block 21 display is zero, extinguishes insulation display block and time
Display block 21, meanwhile, described sends auditory tone cues by buzzer and/or loudspeaker.
In above-mentioned steps, Ts is the artificial preferred temperature setting, the temperature that Tj arrives for inflow temperature sensor 6 real-time detection
Degree.
Preheating progress can be passed through striation class by above-mentioned preheating state-visibility gasifying device and preheating status visualization method
Like the display mode of countdown, more intuitively present, and also have preheating insulation remaining time to show, significantly improve product
Product Consumer's Experience.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (22)
1. a kind of gas heater, including housing (1) and be arranged on the water inlet (3) of described housing (1) bottom, water return outlet
(4) and delivery port (5), be provided with housing (1) for the controller (2) that controls described gas heater it is characterised in that
Pipeline by described water inlet (3) to described delivery port (5) is sequentially connected in series and is provided with inflow temperature sensor (6), burning
Device (7), water pot (8) and leaving water temperature sensors (9), are additionally provided with return pipe in water return outlet (4) to inflow temperature sensor (6)
Road, is provided with water pump (10) and backwater check valve (11) on described water return pipeline, and described backwater check valve (11) is arranged on institute
The delivery port (5) stating water pump (10) is to described inflow temperature sensor (6), and described backwater check valve (11) is by described water
Pump (10) flows to described inflow temperature sensor (6), described inflow temperature sensor (6), leaving water temperature sensors (9) and water
Pump (10) is all connected with described controller (2) signal.
2. gas heater according to claim 1 is it is characterised in that by described burner (7) to described water pot (8)
Pipeline is connected to the bottom of described water pot (8), by described water pot (8) to described delivery port (5) pipeline from described water pot (8)
Bottom is drawn.
3. gas heater according to claim 1 and 2 is it is characterised in that be additionally provided with row in described housing (1) bottom
The bottom UNICOM of the mouth of a river (12), described discharge outlet (12) and described water pot (8).
4. gas heater according to claim 3 is it is characterised in that be additionally provided with exhaust in described housing (1) bottom
Mouth (13), described exhaust outlet (13) and described water return pipeline UNICOM.
5. gas heater according to claim 1 it is characterised in that also include be arranged on pre- on described housing (1)
Warm status visualization device, the display device that described preheating state-visibility gasifying device includes mounting bracket (17) and is disposed thereon
(18), described display device (18) includes preheating progress display block and device symbols display block, and described preheating progress shows
Block includes at least three show bars (22), and described show bar (22) is arranged in a linear and interval setting.
6. gas heater according to claim 5 is it is characterised in that described device symbols display block is included for showing
Show the water pump display block (19) of water pump symbol, and/or, for showing the heating display block (23) that preheating mode starts, and/
Or, for the insulation display block showing preheating insulation state.
7. gas heater according to claim 5 it is characterised in that described preheating progress display block include four show
Show bar (22), described four show bars (22) are transversely arranged linearly, and are arranged on described display device (18) bottom.
8. the gas heater according to claim 6 or 7 it is characterised in that described display device (18) also include for
The temperature display block (20) of display water temperature and the time showing block (21) for showing the time.
9. gas heater according to claim 5 is it is characterised in that described device symbols display block and/or described
The LED display that preheating progress display block is integrated.
10. gas heater according to claim 5 it is characterised in that described show bar (22) be charactron, and/or,
Described temperature display block (20) includes the charactron of two figures of eight, and/or, described time showing area includes four " 8 " words
The charactron of shape.
11. gas heaters according to claim 5 are it is characterised in that described preheating state-visibility gasifying device also includes
Buzzer and/or loudspeaker.
A kind of 12. fuel gas water heating systems are it is characterised in that setting is just like the gas and hot water described in claim 1-4 any one
Device, also includes some use water spots and supply channel, and described supply channel includes being connected in parallel to by described water supply pipe described uses water
Point cold water pipeline, the hot water line of described use water spot is connected in parallel to and by from the beginning by the delivery port (5) of described gas heater
Water lines connect to first water inlet pipe (14) of described water return outlet (4), the distalmost end of described hot water line and described cold water pipeline
It is provided with the check valve being flowed to cold water pipeline by hot water line.
13. fuel gas water heating systems according to claim 12 are it is characterised in that described supply channel also includes the second water inlet
Pipe (15), described second water inlet pipe (15) one end is connected to described first water inlet pipe (14), and the other end is connected to described water inlet
(3) water feeding one-way valve (16) of water inlet described in single flow direction (3), is provided with described second water inlet pipe (15).
The pre-heating mean of gas heater described in a kind of 14. any one for claim 1-11 it is characterised in that include with
Lower step：
Step one, sets preheating mode according to preheating number of times and/or preheating insulation duration and/or return difference temperature；
Step 2, under arbitrary preheating mode, if Tc<Ts-T0, then start water pump (10) and burner (7) starts to preheat；
Step 3, under arbitrary preheating mode, if Tj >=Ts-1, closes burner (7) and stops heating；
Wherein, the temperature that Tc arrives for described leaving water temperature sensors (9) real-time detection, Ts is the artificial preferred temperature setting, T0
For return difference temperature, and 3 DEG C≤T0≤10 DEG C, the temperature that Tj arrives for inflow temperature sensor (6) real-time detection.
The pre-heating mean of 15. gas heaters according to claim 14 it is characterised in that described step 2 also include with
Lower condition：
If the discharge flowing through burner (7) is more than 1L/min and starts discharge less than water heater, do not start water pump (10)
With burner (7).
The pre-heating mean of 16. gas heaters according to claim 15 is it is characterised in that further comprising the steps of：
Step 4, after in Tj >=Ts-1, burner (7) cuts out, water pump (10) remains in operation and carries out water route Posterior circle, and water
The road metacyclic time is less than 5 minutes.
The pre-heating mean of 17. gas heaters according to claim 16 is it is characterised in that in described step 4, described
Water route metacyclic time t is determined by preheated burning time T, specially：If T≤2, t=1；If 2 ＜ T≤4, t=2；If
4 ＜ T≤6, then t=3；If 6 ＜ T≤8, t=4；If 8 ＜ T, t=5, chronomere is minute.
The pre-heating mean of 18. gas heaters according to claim 16 is it is characterised in that further comprising the steps of：
Step 5, at the end of arbitrary preheating mode, makes prompting by audio unit and/or light-emitting device.
The pre-heating mean of 19. gas heaters according to claim 14 is it is characterised in that also include for preheating shape
The visual step of state, specific as follows：
Step 6, after preheating function on, lights water pump display block (19), heating display block (23) and preheating progress and shows
Show four show bars (22) of block；
Step 7, as Ts-2 ＞ Tj >=Ts-4, described four show bars (22) extinguish one by first end to the other end, remaining
Three show bars (22) are lighted；
Step 8, as Ts-1 ＞ Tj >=Ts-2, described four show bars (22) extinguish two by first end to the other end, remaining
Two show bars (22) are lighted；
Step 9, as Tj >=Ts-1, burner (7) stops heating, and heating display block (23) simultaneously is extinguished, and water pump (10) continues
Reforwarding turns, and starts water route Posterior circle, and described four show bars (22) extinguish three by first end to the other end, a remaining display
Bar (22) is lighted；
Step 10, at the end of the Posterior circle of water route, water pump (10) shuts down, and described four show bars (22) are all extinguished, with
When water pump display block (19) extinguish；
Wherein, Ts is the artificial preferred temperature setting, the temperature that Tj arrives for inflow temperature sensor (6) real-time detection.
The pre-heating mean of 20. gas heaters according to claim 19 it is characterised in that described for by pre- Warm status
Visual step is further comprising the steps of：
Step 11, if when arranging preheating mode, being provided with the preheating insulation time, then, after preheating function on, lights guarantor
Warm display block, shows countdown in time showing block (21) simultaneously.
The pre-heating mean of 21. gas heaters according to claim 19 it is characterised in that described for by pre- Warm status
Visual step is further comprising the steps of：
Step 12, when the countdown showing in described time showing block (21) is zero, extinguishes insulation display block and time
Display block (21), meanwhile, described buzzer and/or loudspeaker send auditory tone cues.
The pre-heating mean of 22. gas heaters according to claim 19 it is characterised in that described for by pre- Warm status
Visual step is further comprising the steps of：
Step 13, after preheating function on, puts brightness temperature display block (20) always and shows that leaving water temperature senses in real time
The temperature that device (9) detects.
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| CN111426051A (en) * | 2020-03-25 | 2020-07-17 | 华帝股份有限公司 | Gas water heater with current limiting device and control method thereof |
| CN112594772A (en) * | 2020-11-17 | 2021-04-02 | 华帝股份有限公司 | Wall-mounted boiler zero-cold-water starting method |
| CN113175752A (en) * | 2021-04-08 | 2021-07-27 | 海信(广东)厨卫系统股份有限公司 | Filter screen filth blockage detection method for gas heating equipment |
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