CN110779213A - Anti-freezing method for domestic gas water heater - Google Patents
Anti-freezing method for domestic gas water heater Download PDFInfo
- Publication number
- CN110779213A CN110779213A CN201910819879.5A CN201910819879A CN110779213A CN 110779213 A CN110779213 A CN 110779213A CN 201910819879 A CN201910819879 A CN 201910819879A CN 110779213 A CN110779213 A CN 110779213A
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- freezing
- water heater
- temperature sensor
- heat exchanger
- heater
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 238000007710 freezing Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000008014 freezing Effects 0.000 claims abstract description 19
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
Images
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
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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)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to a freeze-proof method for household gas water heater; the method is characterized in that: when the heater made of ceramic materials is not started or is in the starting process, the generated heat cannot meet the freezing resistance of cold air to the heat exchanger body, the control system reads signals of the water inlet temperature sensor and the water outlet temperature sensor and carries out difference operation on the temperatures analyzed by the two signals, so that whether the heat exchanger body is possibly frozen due to the fact that external cold flows flow flows backwards or not is judged, if the control system detects that the current cold environment has a freezing tendency, the controller gives a starting signal to a fan motor in the gas water heater, and the fan operates to force the external cold air to not enter the heat exchanger system, so that the gas water heater can be effectively prevented from freezing.
Description
Technical Field
The invention relates to the field of household water heaters, in particular to an anti-freezing method of a household gas water heater.
Background
The anti-freezing measures of the household water heater in winter are usually only carried out on the pipeline of the water heater, and the aim of anti-freezing is mainly achieved through heat generation of the built-in ceramic heating material, so that the operation mode generates power consumption.
The currently adopted heat preservation and freezing prevention measures of the water outlet pipe connected with the water heater are as follows:
a. and (5) wrapping by using a heat-insulating material. The outer surface of the water pipeline is wrapped by heat-insulating materials such as cotton-linen fabrics, plastic foams and the like, so that the heat-insulating effect is not good enough.
b. And residual water in the water outlet pipeline is emptied. The residual water in the household pipeline needs to be emptied after the water is not used every time, but the actual operation is inconvenient and water resources are wasted.
c. And (5) dripping water for preventing freezing. The flowing water is not easy to freeze, so that the water always flows in the water pipe, and although the method can prevent the water pipe from being frozen, the water resource is wasted.
Through observation, the main reason that the gas water heater is easy to freeze and damage in winter is caused by the backflow of outdoor cold air to a heat exchanger system of the water heater. At present, the manufacturers of household water heaters mainly place a flow baffle plate in an exhaust hood to prevent the cold flow from flowing backwards outdoors (see fig. 1). Because the structure is a mechanical structure, the gap between the baffle plates can not be tightly jointed in order to avoid unnecessary false actions, so that the function of isolating the baffle plates from external cold flow can not be met, and the heat exchanger body is still damaged because the water in the heat exchanger body is frozen.
Disclosure of Invention
The invention aims to overcome the defects and provide a method for judging forced air exhaust and whether to start the forced air exhaust, thereby avoiding the gas water heater from being frozen.
In order to achieve the above object, the present invention is realized by:
the anti-freezing method of the household gas water heater comprises a gas water heater body and a control system, wherein the gas water heater body comprises a heater made of ceramic materials, a heat exchanger body, a fan, a water inlet pipe, a water outlet pipe, a water inlet temperature sensor, a water outlet temperature sensor and an exhaust part temperature sensor, and the anti-freezing method comprises the following steps: when the heater made of ceramic materials is not started or is in the starting process, the generated heat cannot meet the freezing resistance of cold air to the heat exchanger body, the control system reads signals of the water inlet temperature sensor and the water outlet temperature sensor and carries out difference operation on the temperatures analyzed by the two signals, so that whether the heat exchanger body is possibly frozen due to the fact that external cold flows flow flows backwards or not is judged, if the control system detects that the current cold environment has a freezing tendency, the controller gives a starting signal to a fan motor in the gas water heater, and the fan operates to force the external cold air to not enter the heat exchanger system, so that the gas water heater can be effectively prevented from freezing.
According to the anti-freezing method for the household gas water heater, the process that whether the heat exchanger body is possibly frozen due to the fact that external cold flow flows backwards or not is judged by the control system comprises the following steps: starting a fan system of the gas burner when signals of temperature sensors of the water inlet part, the water outlet part and the exhaust part sense A ℃; the low-speed rotation is carried out, cold air in the exhaust part is forcibly exhausted or the external cold air is prevented from entering the water heater body; when the signals of the water inlet temperature sensor and the water outlet temperature sensor sense B ℃, the heating work of the anti-freezing heating material is started immediately; therefore, the purpose is to forcibly discharge the external cold air by pre-starting the fan, so that the freezing resistance is effectively realized.
In the anti-freezing method of the household gas water heater, the range value of A ℃ is 6 ℃; the range values of B ℃ are: 4+2-1 ℃.
The anti-freezing method adopts the design, the control system monitors the temperature of each connecting part of the heat exchanger in the water heater through a set of preset program, and when the freezing is possible, the forced air exhaust is realized by starting the fan in the gas water heater, so that the cold air in the water heater or nearby is removed, and the problem that the gas water heater is easy to freeze is solved.
Drawings
FIG. 1 is a schematic diagram of the operation of the antifreeze method.
Detailed Description
The invention is further illustrated by the following specific examples.
As shown in fig. 1, an anti-freezing method for a household gas water heater includes a gas water heater body, a control system, the gas water heater body includes a ceramic heater, a heat exchanger body 1, a fan 2, a water inlet pipe, a water outlet pipe, water inlet temperature sensors 1 and 3, water outlet temperature sensors 11 and 13, and an exhaust part temperature sensor, the anti-freezing method includes: when the heater made of ceramic materials is not started or the heater made of ceramic materials cannot meet the freezing capacity of cold air resistance on the heat exchanger body 1 when the heater is started, the control system reads signals of the water inlet temperature sensors 1 and 3 and the water outlet temperature sensors 11 and 13 and carries out difference operation on the temperatures analyzed by the two signals, so that whether the heat exchanger body 1 is possibly frozen due to the fact that external cold flows flow backwards or not is judged, if the control system detects that the current cold environment has a freezing tendency, the controller gives a starting signal to a motor of a fan 2 in the gas water heater, the fan 2 operates to force the external cold air to not enter the heat exchanger system, and therefore the gas water heater can be effectively prevented from being frozen.
According to the anti-freezing method for the household gas water heater, the process that whether the heat exchanger body is possibly frozen due to the fact that external cold flow flows backwards or not is judged by the control system comprises the following steps: starting a fan system of the gas burner when signals of temperature sensors of the water inlet part, the water outlet part and the exhaust part sense A ℃; the low-speed rotation is carried out, cold air in the exhaust part is forcibly exhausted or the external cold air is prevented from entering the water heater body; when the signals of the water inlet temperature sensor and the water outlet temperature sensor sense B ℃, the heating work of the anti-freezing heating material is started immediately; therefore, the purpose is to forcibly discharge the external cold air by pre-starting the fan, so that the freezing resistance is effectively realized.
The anti-freezing method of the household gas water heater comprises the following steps: 6 ℃; the range values of B ℃ are: 4+2-1 ℃.
According to the anti-freezing method, the noise generated by the running of the fan during freezing prevention is considered, and the normal rest of family personnel can be influenced particularly in the late night period if the running rotating speed of the fan in the water heater is too high. Therefore, the patent clearly shows that the rotating speed of the fan is 2000 rpm/min, and the noise produced by the rotating speed is basically ignored.
The anti-freezing method adopts the design, the control system monitors the temperature of each connecting part of the heat exchanger in the water heater through a set of preset program, and when the freezing is possible, the forced air exhaust is realized by starting the fan in the gas water heater, so that the cold air in the water heater or nearby is removed, and the problem that the gas water heater is easy to freeze is solved.
Claims (3)
1. The utility model provides a domestic gas heater's anti-freezing method, its includes the gas heater body, control system the gas heater body includes ceramic heater, heat exchanger body, fan, inlet tube, outlet pipe, the temperature sensor of intaking, play water temperature sensor and exhaust portion temperature sensor, characterized by: the anti-freezing method comprises the following steps: when the heater made of ceramic materials is not started or is in the starting process, the generated heat cannot meet the freezing resistance of cold air to the heat exchanger body, the control system reads signals of the water inlet temperature sensor and the water outlet temperature sensor and carries out difference operation on the temperatures analyzed by the two signals, so that whether the heat exchanger body is possibly frozen due to the fact that external cold flows flow flows backwards or not is judged, if the control system detects that the current cold environment has a freezing tendency, the controller gives a starting signal to a fan motor in the gas water heater, and the fan operates to force the external cold air to not enter the heat exchanger system, so that the gas water heater can be effectively prevented from freezing.
2. The anti-freezing method for household gas water heater as claimed in claim 1, wherein: the control system judges whether external cold flow flows backwards or not so as to cause the possible process that the heat exchanger body is frozen comprises the following steps: starting a fan system of the gas burner when signals of temperature sensors of the water inlet part, the water outlet part and the exhaust part sense A ℃; the low-speed rotation is carried out, cold air in the exhaust part is forcibly exhausted or the external cold air is prevented from entering the water heater body; when the signals of the water inlet temperature sensor and the water outlet temperature sensor sense B ℃, the heating work of the anti-freezing heating material is started immediately; therefore, the purpose is to forcibly discharge the external cold air by pre-starting the fan, so that the freezing resistance is effectively realized.
3. The anti-freezing method for household gas water heater as claimed in claim 2, wherein: the range values for A ℃ are: 6 ℃; the range values of B ℃ are: 4+2-1 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910819879.5A CN110779213A (en) | 2019-08-31 | 2019-08-31 | Anti-freezing method for domestic gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910819879.5A CN110779213A (en) | 2019-08-31 | 2019-08-31 | Anti-freezing method for domestic gas water heater |
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| Publication Number | Publication Date |
|---|---|
| CN110779213A true CN110779213A (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910819879.5A Pending CN110779213A (en) | 2019-08-31 | 2019-08-31 | Anti-freezing method for domestic gas water heater |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426069A (en) * | 2020-05-21 | 2020-07-17 | 珠海格力电器股份有限公司 | Heating stove control method, heating stove control equipment and heating stove system |
| CN111811133A (en) * | 2020-06-01 | 2020-10-23 | 威能(无锡)供热设备有限公司 | Gas water heating equipment |
| CN111947297A (en) * | 2020-08-17 | 2020-11-17 | 珠海格力电器股份有限公司 | Gas water heater, control method and device of gas water heater and storage medium |
| CN114459159A (en) * | 2022-01-20 | 2022-05-10 | 广东万和新电气股份有限公司 | Water heater and anti-freezing control method thereof |
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| JP2011021770A (en) * | 2009-07-13 | 2011-02-03 | Paloma Industries Ltd | Water heater |
| CN202149590U (en) * | 2011-06-30 | 2012-02-22 | 美的集团有限公司 | Anti-freezing forced-ventilated type gas water heater |
| CN204141852U (en) * | 2014-08-11 | 2015-02-04 | 宁波帅康热水器有限公司 | A kind of gas heater with antifreeze warning function |
| US20150053150A1 (en) * | 2012-02-29 | 2015-02-26 | Jx Nippon Oil & Energy Corporation | Device and method for controlling cogeneration system |
| CN208238261U (en) * | 2017-12-12 | 2018-12-14 | 能率(中国)投资有限公司 | The antifreeze and prompt system of domestic gas-fired water heater |
| CN109307368A (en) * | 2018-09-17 | 2019-02-05 | 广东万和新电气股份有限公司 | A kind of forced-ventilated gas water heater control method |
| CN110186200A (en) * | 2019-06-26 | 2019-08-30 | 广东万和热能科技有限公司 | A kind of burning antifreeze control method and the gas heater using it |
-
2019
- 2019-08-31 CN CN201910819879.5A patent/CN110779213A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011021770A (en) * | 2009-07-13 | 2011-02-03 | Paloma Industries Ltd | Water heater |
| CN202149590U (en) * | 2011-06-30 | 2012-02-22 | 美的集团有限公司 | Anti-freezing forced-ventilated type gas water heater |
| US20150053150A1 (en) * | 2012-02-29 | 2015-02-26 | Jx Nippon Oil & Energy Corporation | Device and method for controlling cogeneration system |
| CN204141852U (en) * | 2014-08-11 | 2015-02-04 | 宁波帅康热水器有限公司 | A kind of gas heater with antifreeze warning function |
| CN208238261U (en) * | 2017-12-12 | 2018-12-14 | 能率(中国)投资有限公司 | The antifreeze and prompt system of domestic gas-fired water heater |
| CN109307368A (en) * | 2018-09-17 | 2019-02-05 | 广东万和新电气股份有限公司 | A kind of forced-ventilated gas water heater control method |
| CN110186200A (en) * | 2019-06-26 | 2019-08-30 | 广东万和热能科技有限公司 | A kind of burning antifreeze control method and the gas heater using it |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426069A (en) * | 2020-05-21 | 2020-07-17 | 珠海格力电器股份有限公司 | Heating stove control method, heating stove control equipment and heating stove system |
| CN111811133A (en) * | 2020-06-01 | 2020-10-23 | 威能(无锡)供热设备有限公司 | Gas water heating equipment |
| CN111947297A (en) * | 2020-08-17 | 2020-11-17 | 珠海格力电器股份有限公司 | Gas water heater, control method and device of gas water heater and storage medium |
| CN111947297B (en) * | 2020-08-17 | 2021-11-16 | 珠海格力电器股份有限公司 | Gas water heater, control method and device of gas water heater and storage medium |
| CN114459159A (en) * | 2022-01-20 | 2022-05-10 | 广东万和新电气股份有限公司 | Water heater and anti-freezing control method thereof |
| CN114459159B (en) * | 2022-01-20 | 2024-03-12 | 广东万和新电气股份有限公司 | Water heater and anti-freezing control method thereof |
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Application publication date: 20200211 |