CN110806012A - Control method of zero-cold-water gas water heater and zero-cold-water gas water heater - Google Patents
Control method of zero-cold-water gas water heater and zero-cold-water gas water heater Download PDFInfo
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- CN110806012A CN110806012A CN201911088361.5A CN201911088361A CN110806012A CN 110806012 A CN110806012 A CN 110806012A CN 201911088361 A CN201911088361 A CN 201911088361A CN 110806012 A CN110806012 A CN 110806012A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 360
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000003044 adaptive effect Effects 0.000 abstract description 2
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 238000003287 bathing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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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
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The invention discloses a control method of a zero-cold-water gas water heater, which is used for preventing the gas water heater from being started by mistake and is implemented according to the following steps: s1, collecting the water inlet pressure P of the water inlet of the gas water heater in real timeInflow water(ii) a S2, pressing the water inlet pressure P in the S1Inflow waterMatching with the preset starting flow of the gas water heater, and calculating the starting flow V under the current water inlet pressureStarting up(ii) a S3, collecting water flow V on the main water pipeline of the gas water heater in real timeHot waterAccording to the water flow VHot waterAnd the opening machine flow V in S2Starting upDetermining whether the zero-cold-water gas water heater is started or not; the invention also discloses a gas water heater. The invention solves the problem of starting the gas water heater by mistake by matching the adaptive starting flow according to the water inlet pressure.
Description
Technical Field
The invention belongs to the technical field of gas water heaters, and particularly relates to a control method of a zero-cold-water gas water heater and the zero-cold-water gas water heater.
Background
At present, the waterway installation mode of the zero-cold water gas water heater has two types: one is a three-pipe scheme with a cold water pipe, a hot water pipe and a water return pipe; in addition, the other scheme is only provided with a cold water pipe and a hot water pipe, and a check valve is additionally arranged at a wash stand at the far water end to communicate the cold water pipe and the hot water pipe so as to prevent hot water from flowing back. Aiming at the two-pipe scheme, the working principle of the zero-cold-water gas water heater is as follows: starting a preheating function in a water-off state, driving water stored in a cold and hot water pipe to circularly flow by an internal circulating pump, and igniting and preheating when the circulating flow is greater than the starting flow; when the circulation is preheated, the water stored in the cold water pipe flows into the water heater, flows into the hot water pipe after being heated, and flows back to the cold water pipe through the one-way valve.
However, because the two-pipe scheme of the zero-cold-water heater is communicated with the cold water pipe and the hot water pipe through the zero-cold-water one-way valve, when a cold water faucet of a wash stand, a flush toilet, cold shower water or a washing machine is opened, most of tap water flows to a water using point through the cold water pipe, and a small part of tap water flows to the water using point through the water heater, the hot water pipe and the zero-cold-water one-way valve respectively, wherein the ratio of hot water diversion to cold water diversion is close to 1/3, and the starting flow of the zero-cold-water gas water heater on the market is generally 2.5L/; when the pressure of tap water is 0.1MPa and the flow rate of water point through reaches more than 10L/min, the flow rate of the water diverted by the hot water pipe exceeds the starting flow rate of the water heater, so that the water heater is started by mistake for ignition.
Disclosure of Invention
In order to solve the problems, the invention provides a control method of a zero-cold-water gas water heater, which solves the problem of starting the gas water heater by mistake according to the starting flow matched with the water inlet pressure.
Another object of the present invention is to provide a zero cold water gas water heater.
The technical scheme adopted by the invention is as follows:
a control method of a zero-cold-water gas water heater is used for preventing the gas water heater from being started by mistake and is implemented according to the following steps:
s1, collecting the water inlet pressure P of the water inlet of the gas water heater in real timeInflow water；
S2, pressing the water inlet pressure P in the S1Inflow waterAnd preMatching the starting flow of the gas water heater, and calculating the starting flow V under the current water inlet pressureStarting up；
S3, collecting water flow V on the main water pipeline of the gas water heater in real timeHot waterAccording to the water flow VHot waterAnd the opening machine flow V in S2Starting upThe relationship determines whether the zero cold water gas water heater is on.
Preferably, in the step S3, the water flow rate V is determined according to the water flow rateHot waterAnd the starting-up flow VStarting upDetermining whether the zero-cold-water gas water heater is started or not, specifically comprising the following steps:
when V isHot water＜VStarting upWhen the water heater is started, the gas water heater is not started;
when V isHot water≥VStarting upAnd when the gas water heater is started, the gas water heater is started.
Preferably, the water inlet pressure P in S2 isInflow waterMatching with the preset starting flow of the gas water heater, and calculating the starting flow V under the current water inlet pressureStarting upThe method specifically comprises the following steps:
according to the water pressure P of inlet waterInflow waterWith minimum value of water pressure PminAnd maximum value of water pressure PmaxThe relationship between them determines the boot flow VStarting up。
Preferably, the water inlet pressure P is used as the basis ofInflow waterWith minimum value of water pressure PminAnd maximum value of water pressure PmaxThe relationship between them determines the boot flow VStarting upThe method specifically comprises the following steps:
when P is presentInflow water≤PminWhen, VStarting up＝Vmin；
When P is presentInflow water≥PmaxWhen, VStarting up＝Vmax；
When P is presentmin＜PInflow water＜PmaxWhen, VStarting up＝Vmin+(PInflow water-Pmin)*(Vmax-Vmin)/(Pmax-Pmin)；
Wherein, VminAt the lowest boot flow, VmaxThe highest boot flow.
Preferably, the minimum boot flow VminThe value range is as follows: v is less than or equal to 2.4L/minmin≤2.6L/min。
Preferably, the maximum boot flow VmaxThe value range is as follows: v is not more than 4.9L/minmax≤5.1L/min。
The zero-cold-water gas water heater is characterized by comprising a gas water heater body, a circulating pump, a water flow collecting unit, a water pressure collecting unit, a controller, a cold water pipe, a hot water pipe and a water using end, wherein the circulating pump, the water flow collecting unit and the water pressure collecting unit are all arranged on a main water path in the gas water heater body and are all connected with the controller, one end of the cold water pipe is connected with a water source, the other end of the cold water pipe is connected with the water using end, one end of the hot water pipe is connected with the gas water heater body, and the other end of the hot water pipe is connected with the water using end.
Preferably, the water flow rate collecting unit includes a water flow rate sensor.
Preferably, the water pressure collecting unit includes a water pressure sensor.
Preferably, the other ends of the cold water pipe and the hot water pipe are connected through a check valve, and the check valve is connected in parallel with the water using end to prevent hot water from flowing back.
Compared with the prior art, when the zero-cold-water gas water heater is used, the water inlet pressure of the water inlet of the gas water heater is collected in real time, the water inlet pressure is matched with the preset starting flow of the gas water heater, the starting flow under the current water inlet pressure is calculated, then the water flow on a main water pipeline of the gas water heater is collected in real time, and whether the zero-cold-water gas water heater is started or not is determined according to the relation between the water flow and the starting flow; the problem of starting the gas water heater by mistake is solved by matching the adaptive starting flow according to the water inlet pressure.
Drawings
Fig. 1 is a flowchart of a control method of a zero-cold-water gas water heater according to embodiment 1 of the present invention;
fig. 2 is a graph showing a matching relationship between startup flow and water inlet pressure in a control method of a zero-cold-water gas water heater according to embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of a gas water heater provided in embodiment 2 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not mean that the device or member to which the present invention is directed must have a specific orientation or position, and thus, cannot be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
s1, collecting the water inlet pressure P of the water inlet of the gas water heater in real timeInflow water；
Specifically, the detection is carried out through a water pressure sensor arranged at a water inlet of the gas water heater;
s2, pressing the water inlet pressure P in the S1Inflow waterWith preset gas water heater start-up flowMatching, and calculating the starting flow V under the current water inlet pressureStarting up；
In particular according to the water inlet pressure PInflow waterWith minimum value of water pressure PminAnd maximum value of water pressure PmaxThe relationship between them determines the boot flow VStarting up：
When P is presentInflow water≤PminWhen, VStarting up＝Vmin；
When P is presentInflow water≥PmaxWhen, VStarting up＝Vmax；
When P is presentmin＜PInflow water＜PmaxWhen, VStarting up＝Vmin+(PInflow water-Pmin)*(Vmax-Vmin)/(Pmax-Pmin)；
Wherein, VminAt the lowest boot flow, VmaxThe highest boot flow.
The minimum boot flow VminThe value range is as follows: v is less than or equal to 2.4L/minmin2.6L/min or less, preferably 2.5L/min.
The maximum boot flow VmaxThe value range is as follows: v is not more than 4.9L/minmaxLess than or equal to 5.1L/min, preferably 5.0L/min.
S3, collecting water flow V on the main water pipeline of the gas water heater in real timeHot waterAccording to the water flow VHot waterAnd the opening machine flow V in S2Starting upDetermining whether the zero-cold-water gas water heater is started or not;
specifically, the method comprises the following steps:
when V isHot water＜VStarting upWhen the water heater is started, the gas water heater is not started;
when V isHot water≥VStarting upAnd when the gas water heater is started, the gas water heater is started.
In addition, the water flow V on the main water pipelineHot waterWater flow V on cold water pipeCold waterThe ratio of water is about 1: 3.
The beneficial effects of this embodiment:
the higher the water inlet pressure is, the larger the cold water flow is, when the user uses the wash platform or the wash horseWhen the barrel is used, the hot water diversion is larger, and the hot water diversion flow (namely the water flow) V is easy to realizeHot water＞VStarting upThe controller automatically matches with the larger starting-up flow according to the water inlet pressure to make the hot water flow (V) splitHot water) < boot flow (V)Starting up) Avoiding the false start of the water heater;
when the water pressure sensor detects that the water inlet pressure is low, the system sets the starting flow as the lowest starting flow (V) according to the programmin) The normal operation of the water heater is ensured; similarly, when the water pressure sensor detects that the water inlet pressure is higher, the system sets the starting flow to be the highest starting flow (V) according to the programmax) The water heater can be ensured to be normally used by a user, and the problem of starting the water heater by mistake ignition can be avoided;
in addition, the lowest boot flow VminWith the highest starting-up flow VmaxThe user water channel bathing device can be adjusted according to the actual water channel condition of the user so as to meet the bathing requirements of the user in different water channel conditions in different regions.
Example 2
The embodiment 2 of the invention provides a zero-cold-water gas water heater, which comprises a gas water heater body 1, a circulating pump 2, a water flow collecting unit 3, a water pressure collecting unit 4, a controller 5, a cold water pipe 6, a hot water pipe 7 and a water using end 8, wherein the circulating pump 2, the water flow collecting unit 3 and the water pressure collecting unit 4 are all arranged on a main water path in the gas water heater body 1 and are all connected with the controller 5, one end of the cold water pipe 6 is connected with a water source, the other end of the cold water pipe is connected with the water using end 8, one end of the hot water pipe 7 is connected with the gas water heater body 1, and the other end of the hot water pipe is connected with the water using end 8.
The water flow collecting unit 3 includes a water flow sensor.
The water pressure collecting unit 4 includes a water pressure sensor.
The other ends of the cold water pipe 6 and the hot water pipe 7 are connected through a one-way valve 9, and the one-way valve 9 and the water using end 8 are connected in parallel to prevent hot water from flowing back.
The working process of the embodiment is as follows:
firstly, a water pressure sensor acquires the water inlet pressure of a water inlet of a gas water heater in real time and transmits the water inlet pressure to a controller 5, and the controller 5 matches the starting flow under the current water pressure according to the relation between the preset water inlet pressure and the starting flow; and then, the water flow sensor collects the water flow on the main water pipeline of the gas water heater in real time, when the water flow is smaller than the starting flow, the gas water heater is not started, otherwise, the gas water heater is started.
The problem of gas heater mistake start-up has been solved through the start-up flow according to the pressure matching adaptation of intaking to this embodiment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The control method of the zero-cold-water gas water heater is characterized by being used for preventing the gas water heater from being started by mistake and specifically comprising the following steps of:
s1, collecting the water inlet pressure P of the water inlet of the gas water heater in real timeInflow water；
S2, pressing the water inlet pressure P in the S1Inflow waterMatching with the preset starting flow of the gas water heater, and calculating the starting flow V under the current water inlet pressureStarting up；
S3, collecting water flow V on the main water pipeline of the gas water heater in real timeHot waterAccording to the water flow VHot waterAnd the opening machine flow V in S2Starting upThe relationship determines whether the zero cold water gas water heater is on.
2. The method as claimed in claim 1, wherein the step S3 is performed according to water flow VHot waterAnd the starting-up flow VStarting upDetermining whether the zero-cold-water gas water heater is started or not, specifically comprising the following steps:
when V isHot water＜VStarting upWhen the water heater is started, the gas water heater is not started;
when V isHot water≥VStarting upAnd when the gas water heater is started, the gas water heater is started.
3. The method as claimed in claim 2, wherein the pressure P of the inlet water is set at S2Inflow waterMatching with the preset starting flow of the gas water heater, and calculating the starting flow V under the current water inlet pressureStarting upThe method specifically comprises the following steps:
according to the water pressure P of inlet waterInflow waterWith minimum value of water pressure PminAnd maximum value of water pressure PmaxThe relationship between them determines the boot flow VStarting up。
4. The method for controlling a zero-cold-water gas water heater as claimed in claim 3, wherein the method is based on the water pressure P of inlet waterInflow waterWith minimum value of water pressure PminAnd maximum value of water pressure PmaxThe relationship between them determines the boot flow VStarting upThe method specifically comprises the following steps:
when P is presentInflow water≤PminWhen, VStarting up＝Vmin；
When P is presentInflow water≥PmaxWhen, VStarting up＝Vmax；
When P is presentmin＜PInflow water＜PmaxWhen, VStarting up＝Vmin+(PInflow water-Pmin)*(Vmax-Vmin)/(Pmax-Pmin)；
Wherein, VminAt the lowest boot flow, VmaxThe highest boot flow.
5. The method of claim 4, wherein the minimum startup flow V is set tominThe value range is as follows: v is less than or equal to 2.4L/minmin≤2.6L/min。
6.The method of claim 5, wherein the maximum startup flow V is set to be zeromaxThe value range is as follows: v is not more than 4.9L/minmax≤5.1L/min。
7. The zero-cold-water gas water heater is characterized by applying the control method of the zero-cold-water gas water heater as claimed in any one of claims 1 to 6, and comprises a gas water heater body (1), a circulating pump (2), a water flow collecting unit (3), a water pressure collecting unit (4), a controller (5), a cold water pipe (6), a hot water pipe (7) and a water using end (8), wherein the circulating pump (2), the water flow collecting unit (3) and the water pressure collecting unit (4) are all arranged on a main water path in the gas water heater body (1) and are all connected with the controller (5), one end of the cold water pipe (6) is connected with a water source, the other end of the cold water pipe is connected with the water using end (8), one end of the hot water pipe (7) is connected with the gas water heater body (1), and the other end of the hot water pipe is connected with the.
8. A zero cold water gas water heater according to claim 7, characterized in that said water flow acquisition unit (3) comprises a water flow sensor.
9. A zero cold water gas water heater according to claim 8, characterized in that said water pressure pick-up unit (4) comprises a water pressure sensor.
10. A zero-cold-water gas water heater according to any one of claims 7-9, characterized in that the other ends of the cold water pipe (6) and the hot water pipe (7) are connected through a check valve (9), and the check valve (9) is arranged in parallel with the water using end (8) for preventing the hot water from flowing back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911088361.5A CN110806012B (en) | 2019-11-08 | 2019-11-08 | Control method of zero-cooling water gas water heater and zero-cooling water gas water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911088361.5A CN110806012B (en) | 2019-11-08 | 2019-11-08 | Control method of zero-cooling water gas water heater and zero-cooling water gas water heater |
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| CN110806012A true CN110806012A (en) | 2020-02-18 |
| CN110806012B CN110806012B (en) | 2023-12-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701358A (en) * | 2021-08-27 | 2021-11-26 | 广东万和新电气股份有限公司 | Water heater and control method thereof |
| CN113701361A (en) * | 2021-09-06 | 2021-11-26 | 珠海格力电器股份有限公司 | Starting method and device of water heater and water heater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE860153A (en) * | 1976-11-29 | 1978-02-15 | Greenwace Ltd | OIL BURNER |
| CN207335195U (en) * | 2017-09-30 | 2018-05-08 | 宁波方太厨具有限公司 | A kind of gas heater |
| CN109595820A (en) * | 2017-09-30 | 2019-04-09 | 宁波方太厨具有限公司 | A kind of control method of gas heater and the gas heater of application this method |
-
2019
- 2019-11-08 CN CN201911088361.5A patent/CN110806012B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE860153A (en) * | 1976-11-29 | 1978-02-15 | Greenwace Ltd | OIL BURNER |
| CN207335195U (en) * | 2017-09-30 | 2018-05-08 | 宁波方太厨具有限公司 | A kind of gas heater |
| CN109595820A (en) * | 2017-09-30 | 2019-04-09 | 宁波方太厨具有限公司 | A kind of control method of gas heater and the gas heater of application this method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701358A (en) * | 2021-08-27 | 2021-11-26 | 广东万和新电气股份有限公司 | Water heater and control method thereof |
| CN113701358B (en) * | 2021-08-27 | 2023-02-21 | 广东万和新电气股份有限公司 | Water heater and control method thereof |
| CN113701361A (en) * | 2021-09-06 | 2021-11-26 | 珠海格力电器股份有限公司 | Starting method and device of water heater and water heater |
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| CN110806012B (en) | 2023-12-19 |
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