CN108679848A - A kind of the flow property judgment method and gas-heating water heater of hot-water supply - Google Patents
A kind of the flow property judgment method and gas-heating water heater of hot-water supply Download PDFInfo
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- CN108679848A CN108679848A CN201810170890.9A CN201810170890A CN108679848A CN 108679848 A CN108679848 A CN 108679848A CN 201810170890 A CN201810170890 A CN 201810170890A CN 108679848 A CN108679848 A CN 108679848A
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- water
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- preheating
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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
- 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 present invention discloses a kind of flow property judgment method of hot-water supply, it is characterized in that, it is on the hot water apparatus for recycling pre- hot function, by the way that the selection of cycle preheating water pump is arranged, water flow when cycle being made to preheat is less than the water flow of user's water, and sets a cycle preheating water flow threshold by the master controller of hot water apparatus；In the cycle warm of hot water apparatus, if the water-flow signal that detects of water flow sensor is more than cycle preheating water flow threshold, the master controller of hot water apparatus if, judges flow for user's water, and at this moment, control loop preheats water pump and shuts down.A kind of judgment method of flow property provided by the invention, cycle preheating water and user's valve opening can be accurately distinguished, the start and stop opportunity for cycle preheating water pump provides foundation, ensures the constant temperature effect with the hot water apparatus for recycling pre- hot function, the service life for extending cycle preheating water pump, saves electric energy water.The present invention also provides a kind of gas-heating water heaters.
Description
Technical field
The present invention relates to fluid heater technical field more particularly to a kind of flow property judgment methods of hot-water supply
And gas-heating water heater.
Background technology
Currently, most zero cold water gas appliances are at work, control bathroom water circulating pump operating makes water flow sensing unit
Water-flow signal is exported, as one of the Rule of judgment for starting cycle preheated burning.But user equally uses detection flow with water
The mode of signal starts combustion heat supplying, when user in warm valve opening water, water pressure fluctuations and bathroom water circulating pump
Operating may cause water flow fluctuation excessive or more than maximum heat supply water flow, can not be stablized, is uniform, comfortable hot water.
Invention content
For problems of the prior art, the present invention provides a kind of simple in structure, convenient hot-water supply of realization
Flow property judgment method, in the case where not increasing complete machine waterway structure and cost, to judge to distinguish pipeline start up by preheating flow
With user's water flow.
To achieve the above objectives, the present invention adopts the following technical scheme that.
A kind of flow property judgment method of hot-water supply, which is characterized in that it is used in the heat for recycling pre- hot function
In water installations, by the way that the selection of cycle preheating water pump is arranged, water flow when cycle being made to preheat is less than the flow of user's water
Amount, and a cycle preheating water flow threshold is set by the master controller of hot water apparatus；It is preheated in the cycle of hot water apparatus
Cheng Zhong, if the water-flow signal that water flow sensor detects is more than cycle preheating water flow threshold, the main control of hot water apparatus
Device then judges flow for user's water, and at this moment, control loop preheating water pump shuts down.
As a further illustration of the above scheme, in the case where being unsatisfactory for cycle pipeline start up by preheating condition, if water flow
Sensor detects that water-flow signal, the master controller of hot water apparatus then judge flow for user's water, and at this moment, control loop preheats
Water pump is inoperative.
As a further illustration of the above scheme, in the cycle warm of hot water apparatus, if cycle preheating water pump
Continuous running duration is more than setting duration, and the master controller of hot water apparatus then judges flow for user's water, at this moment, control loop
Preheating water pump shuts down.
As a further illustration of the above scheme, when satisfaction cycle pipeline start up by preheating condition, water flow sensor detect
Water flow≤setting value and cycle preheating water pump continuous running duration≤setting duration, the master controller of hot water apparatus judge flow
To recycle preheating water, at this moment, control loop preheating water pump remains in operation.
As a further illustration of the above scheme, the value range of the cycle preheating water flow threshold is：Hot water apparatus
Water flow ＜ cycle preheating water flow threshold ＜ 3a/4 when cycle preheating, wherein a represents the heat production water rate of hot water apparatus.
As a further illustration of the above scheme, a length of 30 minutes when the setting.
As a further illustration of the above scheme, the hot water apparatus is gas heater or gas-heating water heater.
The present invention also provides a kind of gas-heating water heaters, which is characterized in that including master controller and bathroom circuit, in institute
It states bathroom circuit and is equipped with cycle preheating water pump, water flow sensing unit, the bathing inflow temperature probe being connect with the master controller
It pops one's head in bathing leaving water temperature, the controller is popped one's head in anti-according to bathing inflow temperature probe and the bathing leaving water temperature
The signal of feedback controls the cycle preheating starting mode of pump, carries out cycle preheating；It is stored with cycle preheating water in the master controller
Flow threshold, in recycling warm, if the water-flow signal that water flow sensor detects is more than cycle preheating water flow
Threshold value, master controller then judge flow for user's water, and at this moment, control loop preheating water pump shuts down.
As a further illustration of the above scheme, when the bathing of temperature value≤setting of bathing leaving water temperature probe goes out
The bathing of temperature value≤setting of the startup temperature difference of water target temperature-setting or bathing inflow temperature probe is discharged target temperature
When degree--2 DEG C of startup temperature difference, cycle preheating starting mode of pump described in the main controller controls carries out cycle preheating.
As a further illustration of the above scheme, when temperature value >=bathing water outlet of bathing inflow temperature probe
When bathing+10 DEG C of the target temperature of water outlet of temperature value >=setting of -2 DEG C of target temperature or bathing leaving water temperature probe, institute
Cycle preheating water pump described in main controller controls is stated to shut down.
The beneficial effects of the invention are as follows：
A kind of judgment method of flow property provided by the invention can accurately distinguish cycle preheating water and user's valve opening,
Start and stop opportunity for cycle preheating water pump provides foundation, ensures the constant temperature effect with the hot water apparatus for recycling pre- hot function, extends
The service life of cycle preheating water pump, saves electric energy water.
A kind of gas-heating water heater provided by the invention, in the case where not increasing waterway structure and detection device, intelligence
It can judge to distinguish cycle preheating water and user's water, ensure the constant temperature effect of gas-heating water heater supplying hot water, extend bathroom
In the cycle preheating water pump service life, save electric energy.
Description of the drawings
Fig. 1 show gas-heating water heater structural schematic diagram provided by the invention.
Fig. 2 show gas-heating water heater bathroom hot water property decision flow chart provided by the invention.
Specific implementation mode
In the description of the present invention, it should be noted that " transverse direction ", " vertical if any term "center" for the noun of locality
To ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top",
The indicating positions such as "bottom", "inner", "outside", " clockwise ", " counterclockwise " and position relationship are orientation based on ... shown in the drawings or position
Relationship is set, the narration present invention is merely for convenience of and simplifies description, device is not indicated or implied the indicated or element is necessary
It constructs and operates with specific orientation, with particular orientation, should not be understood as the specific protection domain of the limitation present invention.
In addition, being used for description purposes only if any term " first ", " second ", it is not understood to indicate or imply relatively heavy
The property wanted or the quantity for implicitly indicating technical characteristic." first " is defined as a result, " second " feature can be expressed or implicit include
One or more this feature, in the present description, " at least " are meant that one or more, unless otherwise clearly having
The restriction of body.
In the present invention, except as otherwise clear stipulaties and restriction, should make if any term " assembling ", " connected ", " connection " term
Broad sense goes to understand, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；Can also be that machinery connects
It connects；It can be directly connected, can also be to be connected by intermediary, can be connected inside two elements.For ability
For the those of ordinary skill of domain, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In invention, unless otherwise specified and limited, fisrt feature the "upper" of second feature or "lower" may include
First and second features are in direct contact, can also include fisrt feature and second feature not be in direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " under " and " above " include fisrt feature
Right over two features and oblique upper, or be only to indicate that fisrt feature level height is higher than the height of second feature.Fisrt feature
Second feature " on ", " under " and " below " include that fisrt feature is directly under or diagonally below the second feature, or only table
Show that fisrt feature level height is less than second feature.
With reference to the attached drawing of specification, the specific implementation mode of the present invention is further described, makes the present invention's
Technical solution and advantage are clearer, clear.Embodiment is described below with reference to attached drawing to be exemplary, it is intended to solve
The present invention is released, and is not considered as limiting the invention.
Embodiment 1
A kind of flow property judgment method of hot-water supply, it is led to on the hot water apparatus for recycling pre- hot function
The selection setting to cycle preheating water pump is crossed, water flow when cycle being made to preheat is less than the water flow of user's water, and passes through heat
The master controller of water installations sets a cycle preheating water flow threshold.
The size at the time point and water flow that the master controller of hot water apparatus occurs according to water-flow signal, judges current flow
The property of signal belongs to user's water or cycle preheating water.
1) when meeting pipeline start up by preheating condition, start cycle preheating water pump, detect water-flow signal, then judge current as cycle
Preheating；When being unsatisfactory for recycling pre- hot function entry condition, water-flow signal is detected, then judge currently as user's water, it is secondary working as
Before water-flow signal disappears, do not start cycle preheating water pump.
2) it when recycling preheating, detects that current water flow is more than cycle preheating water flow threshold, is judged as that user uses
Water, cycle preheating water pump shut down；
3) when cycle preheating does not meet preheating burn-out condition yet more than 30min, it is judged as user in valve opening water, master control
Device control loop preheating water pump processed shuts down immediately.
Wherein, the hot water apparatus is gas heater or gas-heating water heater.
It is described cycle preheating water flow threshold value range be：Water flow ＜ cycles when hot water apparatus cycle preheating are pre-
Hot water flow threshold value ＜ 3a/4, a represents the heat production water rate of hot water apparatus, i.e., under specified hot water heat input, hot water temperature liter 30K ±
The hot water that goes out per minute rises number when 1K.It is set smaller than 3a/4 by the way that preheating water flow threshold will be recycled, it is ensured that open in user
After valve water makes water flow increase, utensil can obtain enough Wen Sheng's when controlling the operating of bathroom water circulating pump or stalling
Hot water.Since the hot water target temperature highest of general utensil can be arranged to 60 DEG C, it is assumed that when the nominal hot water temperature of hot water apparatus rises 30K
Heat production water rate be aL/min, 20 DEG C of inflow temperature, then temperature rise 40K water flow be b=3a/4.
A length of 30 minutes when the setting.Through lot of experiment validation, in the case of normal preheating, the water in hot water pipeline is added
Heat is no more than 30min to preheating burn-out condition, burn time duration is met.Therefore it is put out when cycle preheating does not meet preheating more than 30min yet
When fiery condition, it is judged as user in valve opening water.
A kind of judgment method of flow property provided in this embodiment can accurately distinguish cycle preheating and be opened with water and user
Valve, the start and stop opportunity for cycle preheating water pump provide foundation, ensure, with the constant temperature effect for the hot water apparatus for recycling pre- hot function, to prolong
Long circulating preheats the service life of water pump, saves electric energy water.
Embodiment 2
As shown in Figure 1, a kind of gas-heating water heater, including：It operator 1, master controller 2, bathroom circuit and heats back
Road is visited being equipped with cycle preheating water pump 3, water flow sensing unit 4, the bathroom inflow temperature being connect with master controller 2 on circuit
First 5, first sanitary outfall temp probe 7 and the second sanitary outfall temp probe 9, heating temperature is popped one's head in the heating loop
6, it is additionally provided with water tank 8 on the bathroom circuit, to provide constant temperature effect.
As shown in Fig. 2, when bathroom cycle preheating, specific control method is as follows：
1) heat production water rate a when gas-heating water heater bathroom temperature rises 30K is tested according to the requirement of GB 25034, then Wen Sheng
The water flow b=3a/4 of 40K.
2) analog subscriber use environment, test loop preheats maximum flow of water amount x makes x ＜ b when cycle preheats pump selection.
3) water flow upper limit value (cycle preheating water flow threshold) q that setting cycle preheats on operator 1, q values can root
It is adjusted according to the characteristic of gas-heating water heater, meets condition x ＜ q≤b.
4) size at the time point and water flow that master controller 2 occurs according to water-flow signal, judges current water-flow signal
Property belongs to user's water or cycle preheating water.Judgment method is as described in Example 1.
Example explanation：It is assumed that zero cold water (band recycles pre- hot function) gas-heating that a specified hot water heat input is 32kW
Water heater, nominal heat production water rate a are that temperature rises 25K, water outlet 16L/min, then ensure the maximum water flow b of constant temperature when temperature rises 40K
For 10L/min.Pipeline water resistance in different user man has differences, and recycles the water flow x of preheating generally in 3L/min to 6L/
Between min, this example assumes that x is 6L/min.Consider that the precision of water flow sensing unit, appropriate reduce can not judge flow by flow
The section of property, while considering also to can guarantee the Wen Sheng of 40K when inflow temperature is relatively low, to obtain the sufficiently high hot water of temperature,
Setting judges flow q values for 9L/min.Then have：
1) when meeting pipeline start up by preheating condition, start cycle preheating water pump 3, detect that water flow is 6L/min, judge current
It is preheated for cycle.When being unsatisfactory for recycling pre- hot function entry condition, detect water-flow signal, then judge it is current as user's water,
Before disappearing when time water-flow signal, do not start cycle preheating water pump 3.
2) it when recycling preheating, detects that current water flow is more than preset 9L/min, is then judged as user's water, follows
Ring preheating water pump 3 shuts down.
If 3) user is adjusted smaller with the aperture of penstock when recycling preheating, water flow is in 6L/min~9L/min
Between, then when preheated burning is more than that 30min does not meet preheating burn-out condition yet, it is judged as user in valve opening water, cycle is pre-
Heat-exchanger pump 3 shuts down immediately.
In the present embodiment, when the bathing water outlet target temperature-of temperature value≤setting of bathing leaving water temperature probe is set
The bathing of temperature value≤setting of the fixed startup temperature difference or bathing inflow temperature probe is discharged target temperature-startup temperature difference -2
DEG C when, cycle preheating starting mode of pump described in the main controller controls carries out cycle preheating.When the bathing inflow temperature is popped one's head in
Temperature value >=bathing water outlet -2 DEG C of target temperature or the bathing leaving water temperature probe temperature value >=setting bathing
When being discharged+10 DEG C of target temperature, cycle preheating water pump described in the main controller controls shuts down.
A kind of gas-heating water heater provided in this embodiment, in the case where not increasing waterway structure and detection device,
Intelligent decision distinguishes cycle preheating water and user's water, ensures that the constant temperature effect of gas-heating water heater supplying hot water, extension are followed
Ring preheats the water pump service life, saves electric energy.
From the foregoing description of structures and principles it should be understood by those skilled in the art that, the present invention not office
It is limited to above-mentioned specific implementation mode, uses the improvement of techniques well known and replacement to all fall within this hair on the basis of the present invention
Bright protection domain, protection scope of the present invention should limit it by each claim and its equivalent.In specific implementation mode
The part not illustrated is the prior art or common knowledge.
Claims (10)
1. a kind of flow property judgment method of hot-water supply, which is characterized in that it is used in the hot water for recycling pre- hot function
On device, by the way that the selection of cycle preheating water pump is arranged, water flow when cycle being made to preheat is less than the water flow of user's water,
And a cycle preheating water flow threshold is set by the master controller of hot water apparatus；In the cycle warm of hot water apparatus
In, if the water-flow signal that water flow sensor detects is more than cycle preheating water flow threshold, the master controller of hot water apparatus
Flow is then judged for user's water, and at this moment, control loop preheating water pump shuts down.
2. a kind of judgment method of flow property according to claim 1, which is characterized in that opened being unsatisfactory for cycle preheating
In the case of dynamic condition, if water flow sensor detects water-flow signal, the master controller of hot water apparatus if, judges that flow is
User's water, at this moment, it is inoperative that control loop preheats water pump.
3. a kind of judgment method of flow property according to claim 1, which is characterized in that pre- in the cycle of hot water apparatus
In thermal process, if cycle preheating water pump continuous running duration is more than setting duration, the master controller of hot water apparatus if, judges water
Stream is user's water, and at this moment, control loop preheating water pump shuts down.
4. a kind of judgment method of flow property according to claim 1, which is characterized in that recycle pipeline start up by preheating when meeting
Water flow≤the setting value and cycle preheating water pump continuous running duration≤setting duration that condition, water flow sensor detect,
The master controller of hot water apparatus judges flow to recycle preheating water, and at this moment, control loop preheating water pump remains in operation.
5. a kind of judgment method of flow property according to claim 1, which is characterized in that the cycle preheats water flow
The value range of threshold value is：Water flow ＜ cycle preheating water flow threshold ＜ 3a/4 when hot water apparatus cycle preheating, wherein a
Represent the heat production water rate of hot water apparatus.
6. a kind of judgment method of flow property according to claim 1, which is characterized in that a length of 30 points when the setting
Clock.
7. a kind of judgment method of flow property according to claim 1, which is characterized in that the hot water apparatus is combustion gas
Water heater or gas-heating water heater.
8. a kind of gas-heating water heater, which is characterized in that including master controller and bathroom circuit, set on the bathroom circuit
There are cycle preheating water pump, water flow sensing unit, bathing inflow temperature probe and the bathing leaving water temperature being connect with the master controller
Probe, the controller control institute according to the signal of bathing inflow temperature probe and bathing leaving water temperature probe feedback
It states cycle preheating starting mode of pump, carry out cycle preheating；It is stored with cycle preheating water flow threshold in the master controller, is being recycled
In warm, if the water-flow signal that detects of water flow sensor is more than cycle preheating water flow threshold, if master controller
Flow is judged for user's water, and at this moment, control loop preheating water pump shuts down.
9. a kind of gas-heating water heater according to claim 8, which is characterized in that when the bathing leaving water temperature is popped one's head in
Temperature value≤setting bathing water outlet target temperature-setting the startups temperature difference or the bathing inflow temperature pop one's head in temperature value
When bathing water outlet target temperature--2 DEG C of startup temperature difference of≤setting, cycle preheating starting mode of pump described in the main controller controls,
Carry out cycle preheating.
10. a kind of gas-heating water heater according to claim 8, which is characterized in that when the bathing inflow temperature is visited
Temperature value >=setting of the temperature value of the head >=bathing -2 DEG C of target temperature of water outlet or bathing leaving water temperature probe is washed
When bath+10 DEG C of target temperature of water outlet, cycle preheating water pump described in the main controller controls shuts down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810170890.9A CN108679848B (en) | 2018-03-01 | 2018-03-01 | Water flow property judgment method of hot water supply device and gas heating water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810170890.9A CN108679848B (en) | 2018-03-01 | 2018-03-01 | Water flow property judgment method of hot water supply device and gas heating water heater |
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| CN108679848A true CN108679848A (en) | 2018-10-19 |
| CN108679848B CN108679848B (en) | 2020-06-19 |
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| CN201810170890.9A Expired - Fee Related CN108679848B (en) | 2018-03-01 | 2018-03-01 | Water flow property judgment method of hot water supply device and gas heating water heater |
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| CN109357393A (en) * | 2018-11-01 | 2019-02-19 | 华帝股份有限公司 | Shutdown control method of gas water heater |
| CN109869915A (en) * | 2019-02-19 | 2019-06-11 | 樱花卫厨（中国）股份有限公司 | Gas heater prewarming circulating system |
| CN110057107A (en) * | 2019-03-19 | 2019-07-26 | 广东万家乐燃气具有限公司 | A kind of quick heating control method of gas-heating water heater |
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| CN110057107A (en) * | 2019-03-19 | 2019-07-26 | 广东万家乐燃气具有限公司 | A kind of quick heating control method of gas-heating water heater |
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| CN110220313B (en) * | 2019-06-12 | 2021-05-11 | 华帝股份有限公司 | Gas water heater control method and gas water heater |
| CN110425753A (en) * | 2019-08-15 | 2019-11-08 | 广东万和新电气股份有限公司 | A kind of New Cycle preheating supercharge control system and its control method |
| CN110440454A (en) * | 2019-08-15 | 2019-11-12 | 广东万和新电气股份有限公司 | A kind of gas heater external control module and its gas heater system and control method |
| CN110425754A (en) * | 2019-08-15 | 2019-11-08 | 广东万和新电气股份有限公司 | A kind of circulation preheating supercharge control system and its control method |
| CN110425754B (en) * | 2019-08-15 | 2023-10-13 | 广东万和新电气股份有限公司 | Circulating preheating and pressurizing control system and control method thereof |
| CN110726251A (en) * | 2019-09-29 | 2020-01-24 | 华帝股份有限公司 | Control method of water heater and water heater applying control method |
| CN110726252A (en) * | 2019-09-29 | 2020-01-24 | 华帝股份有限公司 | Control method of water heater and water heater applying control method |
| CN110864459A (en) * | 2019-10-30 | 2020-03-06 | 宁波方太厨具有限公司 | Water circulation control method of gas water heating device |
| CN111664572A (en) * | 2020-06-24 | 2020-09-15 | 海信(广东)厨卫系统有限公司 | Gas water heater and control method thereof |
| CN112484316A (en) * | 2020-12-11 | 2021-03-12 | 万家乐热能科技有限公司 | Zero-cold-water wall-mounted boiler with hot water pressurization function and control method |
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