CN110220313A - Gas water heater control method and gas water heater - Google Patents
Gas water heater control method and gas water heater Download PDFInfo
- Publication number
- CN110220313A CN110220313A CN201910507019.8A CN201910507019A CN110220313A CN 110220313 A CN110220313 A CN 110220313A CN 201910507019 A CN201910507019 A CN 201910507019A CN 110220313 A CN110220313 A CN 110220313A
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- Prior art keywords
- water flow
- water
- gas heater
- gas
- main waterway
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 251
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005259 measurement Methods 0.000 claims description 29
- 238000001514 detection method Methods 0.000 claims description 3
- 239000008236 heating water Substances 0.000 abstract description 2
- 206010063385 Intellectualisation Diseases 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 59
- 239000000567 combustion gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000035772 mutation Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
Abstract
The invention discloses a control method of a gas water heater, which comprises the following steps: s1, starting the preheating function of the gas water heater in the standby state; s2, starting a water pump of the gas water heater; s3, detecting water flow on a main water channel of the gas water heater, and entering S4 when the water flow is larger than the preset starting water flow; otherwise, the gas water heater is kept in a standby state; s4, igniting the gas water heater to enter a preheating mode; s5, detecting the return water temperature of the gas water heater, completing preheating when the return water temperature is higher than the preset preheating temperature, and turning off the water pump; otherwise, the working state of the gas water heater is controlled through water flow change; s6, when the water flow on the main water path of the gas water heater is larger than the preset shutdown water flow, the gas water heater keeps burning; otherwise, the gas water heater is shut down; the invention also discloses a gas water heater. In the preheating process, the invention can recognize the action of heating water by a user to realize quick pump switching off, reduce power consumption and embody product intellectualization.
Description
Technical field
The invention belongs to gas heater technical fields, and in particular to a kind of gas heater control method and gas and hot water
Device.
Background technique
Current zero cold water gas heater has become water heater industrial trend because it can be realized hot water plug and play, more next
It is more popular with consumers.When starting pre- heat function, the outer hot-water line of circulating pump operating driving machine built in gas heater, return pipe
Water circulates and realizes preheating.
The circulation warm of conventional zero cold water gas heater is general in the market are as follows: after starting pre- heat function, in unlatching
Water pump circulating-heating is set, after return water temperature reaches program preheating temperature, automatically exits from preheating mode.However, actually using
When zero cold water water heater, user often opens hot water tap in turn on pump warm and uses hot water, and tap water flows into heat at this time
Hydrophone makes return water temperature that program preheating temperature be not achieved always, cannot automatically exit from preheating mode, and water pump is always on to be consumed
More electric power.
Summary of the invention
To solve the above-mentioned problems, the object of the present invention is to provide a kind of gas heater control methods, by water flow
The detection of amount realizes that warm boiled water closes pumping function, is suitable for domestic heating water gas instantaneous water heater and dual-purpose stove.
It is a further object of the present invention to provide a kind of gas heaters.
The technical scheme adopted by the invention is that:
A kind of gas heater control method is specifically implemented in accordance with the following steps:
S1 opens the pre- heat function of gas heater in the standby state；
S2, gas heater water pump are opened；
S3 detects the water flow in gas heater main waterway, when the water flow is greater than preset booting water flow,
Into S4；Otherwise the standby mode that gas heater is kept；
S4, gas water heater ignition enter preheating mode；
S5 detects the return water temperature of gas heater, when the return water temperature is greater than preset preheating temperature, completes pre-
Heat switches off the pump；Otherwise the working condition of gas heater is controlled by water flow variation；
S6, when the water flow in gas heater main waterway is greater than preset shutdown water flow, gas heater is maintained
Burning；Otherwise gas heater is flame-out to close.
Preferably, the working condition of gas heater is controlled in the S5 by water flow variation, specifically:
When the water flow variation amount in main waterway is greater than preset water flow variation amount, gas heater completes preheating, closes
Water pump；Otherwise return to S3.
Preferably, the water flow variation amount are as follows: the water flow at the current time in main waterway and last moment water flow
Difference, it may be assumed that
△VActual measurement=VActual measurement-VIt is former
In above formula, △ VActual measurementFor water flow variation amount, VActual measurementFor the water flow at the current time in main waterway, VIt is formerFor main waterway
Last moment water flow.
Preferably, the working condition of gas heater is controlled in the S5 by water flow variation, specifically:
When the water flow variation rate in main waterway is greater than preset water flow variation rate, gas heater completes preheating, closes
Water pump；Otherwise return to S3.
Preferably, the water flow variation rate are as follows: the water flow at the current time in main waterway and last moment water flow
Difference, then the ratio with last moment water flow, it may be assumed that
△LActual measurement=(VActual measurement-VIt is former)/VIt is former
In above formula, △ LActual measurementFor water flow variation rate, VActual measurementFor the water flow at the current time in main waterway, VIt is formerFor in main waterway
One moment water flow.
Preferably, the working condition for controlling gas heater in the S5 by water flow variation further comprises:
When the water flow variation amount in main waterway is big greater than the water flow variation rate in preset water flow variation amount or main waterway
When preset water flow variation rate, water pump is closed；
Judge whether the water flow in gas heater main waterway is greater than preset shutdown water flow at this time, if then combustion gas
Water heater maintains burning；Otherwise gas heater is flame-out to close, and is back to S2.
Preferably, the current time differs 5~15s with last moment.
Preferably, the preset water flow variation amount is 1.0~5.0L/min.
A kind of gas heater using above-mentioned control method comprising water heater body, heat exchanger, water pipeline,
Water flow sensing unit, temperature detecting unit, water pump, controller and gas control valve, the heat exchanger are arranged in water heater
In ontology, the water pipeline passes through heat exchanger, and the water flow sensing unit and water pump are arranged on water pipeline, described
The water inlet end of water heater body, the water flow sensing unit, water pump, temperature detecting unit, combustion gas is arranged in temperature detecting unit
Control valve is connect with controller.
Preferably, which further comprises display screen connected to the controller, is provided on the display screen
Preheat function button.
Compared with prior art, the present invention can identify that user opens hot water movement and realizes quickly pass pump in warm,
Power consumption is reduced, intelligent product is embodied；Also, the working condition that pump is closed by monitoring water flow variation control, is supervised again
It surveys water flow and rejudges whether boiled water, otherwise turn on pump preheats again, avoids judging by accident, it is ensured that be fully warmed-up.
Detailed description of the invention
Fig. 1 is that the embodiment of the present invention 1 provides a kind of flow chart of gas heater control method；
Fig. 2 is that the embodiment of the present invention 2 provides a kind of flow chart of gas heater control method；
Fig. 3 is that the embodiment of the present invention 3 provides a kind of structural schematic diagram of gas heater warm operation state；
Fig. 4 is that the embodiment of the present invention 3 provides a kind of gas heater warm and opens the structural schematic diagram that hot water is.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1
The embodiment of the present invention 1 provides a kind of gas heater control method, as shown in Figure 1, specific real in accordance with the following steps
It applies:
S1 opens the pre- heat function of gas heater in the standby state；
S2, gas heater water pump are opened；
S3 detects the water flow in gas heater main waterway, when the water flow is greater than preset booting water flow,
Into S4；Otherwise the standby mode that gas heater is kept；
S4, gas water heater ignition enter preheating mode；
S5 detects the return water temperature of gas heater, when the return water temperature is greater than preset preheating temperature, completes pre-
Heat switches off the pump；Otherwise the working condition of gas heater is controlled by water flow variation；
The working condition that gas heater is controlled by water flow variation, there are two types of implementations:
The first, specifically: when the water flow variation amount in main waterway is greater than preset water flow variation amount, gas heater
Preheating is completed, is switched off the pump；Otherwise return to S3；
Water flow variation amount are as follows: the water flow at the current time in main waterway and the difference of last moment water flow, it may be assumed that
△VActual measurement=VActual measurement-VIt is former
In above formula, △ VActual measurementFor water flow variation amount, VActual measurementFor the water flow at the current time in main waterway, VIt is formerFor main waterway
Last moment water flow；
Second, specifically: when the water flow variation rate in main waterway is greater than preset water flow variation rate, gas heater
Preheating is completed, is switched off the pump；Otherwise return to S3.
Preferably, the water flow variation rate are as follows: the water flow at the current time in main waterway and last moment water flow
Difference, then the ratio with last moment water flow, it may be assumed that
△LActual measurement=(VActual measurement-VIt is former)/VIt is former
In above formula, △ LActual measurementFor water flow variation rate；
S6, when the water flow in gas heater main waterway is greater than preset shutdown water flow, gas heater is maintained
Burning；Otherwise gas heater is flame-out to close.
In this embodiment, the preset water flow variation amount is fixed value or is carried out by the parameter setting mode of controller
Setting, and it is positive value.
Water flow variation amount (the △ VActual measurement) it is equal to the difference of actual measurement water flow and raw water flow, i.e. △ VActual measurement=VActual measurement-VIt is former,
Raw water flow is the water flow that previous moment measures.Work as VActual measurement> VIt is formerWhen, △ VActual measurementFor positive value, △ V on the contraryActual measurementFor negative value.
The preset water flow mutation rate is fixed value or is set by the parameter setting mode of controller, and it is positive
Value.
Water flow variation rate (the △ LActual measurement) it is equal to the difference of actual measurement water flow and raw water flow divided by raw water flow, i.e. △
LActual measurement=(VActual measurement-VIt is former)/VIt is former, work as VActual measurement> VIt is formerWhen, △ LActual measurementFor positive value, △ L on the contraryActual measurementFor negative value.
The current time differs 5~15s with last moment；The preset water flow variation amount is 1.0~5.0L/min
Embodiment 2
The embodiment of the present invention 2 provides a kind of gas heater control method, as shown in Fig. 2, it is on the basis of embodiment 1
On, further comprise:
S7, when the water flow variation amount in main waterway is greater than the water flow variation in preset water flow variation amount or main waterway
When rate is greater than preset water flow variation rate, water pump is closed；
Judge whether the water flow in gas heater main waterway is greater than preset shutdown water flow at this time, if then combustion gas
Water heater maintains burning；Otherwise gas heater is flame-out to close, and is back to S2.
In this way, when measuring water flow less than shutdown water flow, indicate that hot water tap is simultaneously not switched on after switching off the pump,
Belong to malfunction, then it is flame-out first to close gas control valve for controller, then reopens water pump and continue to preheat, and avoids because user is of short duration
It opens hot water and interrupts circulation warm, it is ensured that be fully warmed-up.
Embodiment 3
The embodiment of the present invention 3 provides a kind of gas heater, as shown in Figure 3-4:
It includes water heater body 1, heat exchanger 2, water pipeline 3, water flow sensing unit 4, temperature detecting unit 5, water
Pump 6, controller 7 and gas control valve 8, in which:
The heat exchanger 2 is arranged in water heater body 1, and the water pipeline 3 passes through heat exchanger 2, the water flow
Sensing unit 4 and water pump 6 are arranged on water pipeline 3, and the water inlet of water heater body 1 is arranged in the temperature detecting unit 5
End, the water flow sensing unit 4, water pump 6, temperature detecting unit 5, gas control valve 8 are connect with controller 7；
In this way, using the above structure, after starting pre- heat function, controller 7 controls water pump 6 and opens, and carries out circulating-heating, return
The water of water pipe flows through after heat exchanger 2 is heated and flows into hot-water line again, then flow to return pipe again.In warm, when
User opens hot water tap, and tap water flows into water heater body 1, then the water flow for flowing through the water flow sensing unit 4 increases suddenly
Greatly；When the water flow sensing unit 4 measures water flow variation amount greater than preset water flow Sudden Changing Rate or water flow variation rate greater than default
Water flow mutation rate when, indicate that boiled water uses user, then controller 7 exports out code to water pump 6, switches off the pump and 6 exits
Preheating mode is switched to common shower pattern, reduces power consumption.
In this embodiment, at water heater standby mode (flame-out), it is greater than when the water flow sensing unit 4 measures water flow
Preset booting water flow, then controller 7 opens gas control valve 8, combustion heating of ventilating.In water heater working state (
Fire), it is less than shutdown water flow when the water flow sensing unit 4 measures water flow, then controller 7 closes gas control valve 8, stops working
Shutdown；
In addition, the water inlet end of water heater connects tap water, water outlet connects hot water tap by hot-water line, on hot-water line
Return pipe is set and connects water feeding of heater end, and in return pipe setting conducting direction and the consistent check valve of return water.
The gas heater further comprises the display screen 9 connecting with controller 7, is provided with preheating on the display screen 9
Function button.
Water flow sensing unit 4 includes flow sensor in the present embodiment；Temperature detecting unit 5 includes temperature sensor.
The present invention can identify that user opens hot water movement and realizes quickly pass pump, reduce power consumption, body in warm
Existing intelligent product；Also, the working condition that pump is closed by monitoring water flow variation control, monitors water flow again and rejudges
Whether boiled water, otherwise turn on pump preheats again, avoids judging by accident, it is ensured that be fully warmed-up.
More than, it is merely preferred embodiments of the present invention, but scope of protection of the present invention is not limited thereto, it is any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of gas heater control method, which is characterized in that specifically implement in accordance with the following steps:
S1 opens the pre- heat function of gas heater in the standby state；
S2, gas heater water pump are opened；
S3 detects the water flow in gas heater main waterway, when the water flow is greater than preset booting water flow, enters
S4；Otherwise the standby mode that gas heater is kept；
S4, gas water heater ignition enter preheating mode；
S5 detects the return water temperature of gas heater, when the return water temperature is greater than preset preheating temperature, completes preheating,
It switches off the pump；Otherwise the working condition of gas heater is controlled by water flow variation；
S6, when the water flow in gas heater main waterway is greater than preset shutdown water flow, gas heater maintains burning；
Otherwise gas heater is flame-out to close.
2. a kind of gas heater control method according to claim 1, which is characterized in that become in the S5 by water flow
Change the working condition of control gas heater, specifically:
When the water flow variation amount in main waterway is greater than preset water flow variation amount, gas heater completes preheating, switches off the pump；
Otherwise return to S3.
3. a kind of gas heater control method according to claim 2, which is characterized in that the water flow variation amount are as follows:
The water flow at the current time in main waterway and the difference of last moment water flow, it may be assumed that
△VActual measurement=VActual measurement-VIt is former
In above formula, △ VActual measurementFor water flow variation amount, VActual measurementFor the water flow at the current time in main waterway, VIt is formerFor a period of time in main waterway
Carve water flow.
4. a kind of gas heater control method according to claim 1, which is characterized in that become in the S5 by water flow
Change the working condition of control gas heater, specifically:
When the water flow variation rate in main waterway is greater than preset water flow variation rate, gas heater completes preheating, switches off the pump；
Otherwise return to S3.
5. a kind of gas heater control method according to claim 4, which is characterized in that the water flow variation rate are as follows:
The water flow at the current time in main waterway and the difference of last moment water flow, then the ratio with last moment water flow, it may be assumed that
△LActual measurement=(VActual measurement-VIt is former)/VIt is former
In above formula, △ LActual measurementFor water flow variation rate, VActual measurementFor the water flow at the current time in main waterway, VIt is formerFor a period of time in main waterway
Carve water flow.
6. a kind of gas heater control method according to claim 3 or 5, which is characterized in that pass through water in the S5
Rheologyization controls the working condition of gas heater, further comprises:
It is greater than in advance when the water flow variation amount in main waterway is greater than the water flow variation rate in preset water flow variation amount or main waterway
If water flow variation rate when, water pump close；
Judge whether the water flow in gas heater main waterway is greater than preset shutdown water flow at this time, if then gas and hot water
Device maintains burning；Otherwise gas heater is flame-out to close, and is back to S2.
7. a kind of gas heater control method according to claim 6, which is characterized in that the current time and upper one
Moment differs 5~15s.
8. a kind of gas heater control method according to claim 2, which is characterized in that the preset water flow variation
Amount is 1.0~5.0L/min.
9. a kind of gas heater using the described in any item control methods of claim 1-8, which is characterized in that it includes heat
Hydrophone ontology (1), heat exchanger (2), water pipeline (3), water flow sensing unit (4), temperature detecting unit (5), water pump (6),
Controller (7) and gas control valve (8), heat exchanger (2) setting is in water heater body (1), the water pipeline
(3) heat exchanger (2) are passed through, the water flow sensing unit (4) and water pump (6) are arranged on water pipeline (3), the temperature
The water inlet end in water heater body (1), the water flow sensing unit (4), water pump (6), temperature detection list is arranged in detection unit (5)
First (5), gas control valve (8) are connect with controller (7).
10. a kind of gas heater according to claim 9, which is characterized in that the gas heater further comprise with
The display screen (9) of controller (7) connection, is provided with preheating function button on the display screen (9).
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| CN201910507019.8A CN110220313B (en) | 2019-06-12 | 2019-06-12 | Gas water heater control method and gas water heater |
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| CN201910507019.8A CN110220313B (en) | 2019-06-12 | 2019-06-12 | Gas water heater control method and gas water heater |
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ID=67816623
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| CN110671824A (en) * | 2019-09-20 | 2020-01-10 | 华帝股份有限公司 | Zero cold water control system and method |
| CN110806013A (en) * | 2019-11-08 | 2020-02-18 | 华帝股份有限公司 | Control method of zero-cold-water gas water heater and zero-cold-water gas water heater |
| CN110940097A (en) * | 2019-12-16 | 2020-03-31 | 华帝股份有限公司 | Control method for self-adaptive starting ignition of gas water heater |
| CN111174443A (en) * | 2020-02-25 | 2020-05-19 | 华帝股份有限公司 | Zero cold water control method of gas water heater |
| CN112128990A (en) * | 2020-09-01 | 2020-12-25 | 华帝股份有限公司 | Control method of waterway system, waterway system and zero-cold-water heat exchange equipment |
| CN112393432A (en) * | 2020-10-09 | 2021-02-23 | 华帝股份有限公司 | Intelligent automatic pressurization control method for water heater |
| CN114251839A (en) * | 2021-11-19 | 2022-03-29 | 华帝股份有限公司 | Control method of water heater and water heater |
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| CN112128990B (en) * | 2020-09-01 | 2022-02-08 | 华帝股份有限公司 | Control method of waterway system, waterway system and zero-cold-water heat exchange equipment |
| CN112393432A (en) * | 2020-10-09 | 2021-02-23 | 华帝股份有限公司 | Intelligent automatic pressurization control method for water heater |
| CN114251839A (en) * | 2021-11-19 | 2022-03-29 | 华帝股份有限公司 | Control method of water heater and water heater |
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