CN110986371A - Anti-freezing gas water heater and control method applying same - Google Patents
Anti-freezing gas water heater and control method applying same Download PDFInfo
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- CN110986371A CN110986371A CN201911244475.4A CN201911244475A CN110986371A CN 110986371 A CN110986371 A CN 110986371A CN 201911244475 A CN201911244475 A CN 201911244475A CN 110986371 A CN110986371 A CN 110986371A
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- gas water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000007710 freezing Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 68
- 239000000779 smoke Substances 0.000 claims abstract description 60
- 239000007789 gas Substances 0.000 claims abstract description 54
- 238000005485 electric heating Methods 0.000 claims abstract description 21
- 239000003517 fume Substances 0.000 claims abstract description 9
- 230000008447 perception Effects 0.000 claims abstract description 7
- 230000009471 action Effects 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims abstract 2
- 238000001514 detection method Methods 0.000 claims description 20
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 230000002528 anti-freeze Effects 0.000 claims 2
- 108010053481 Antifreeze Proteins Proteins 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 7
- 239000000919 ceramic Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- -1 iron-chromium-aluminum Chemical compound 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 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
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- 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 provides an anti-freezing gas water heater and a control method using the same, wherein the anti-freezing gas water heater comprises a gas water heater body, a smoke exhaust pipe, a heating assembly, a temperature sensing element, a wind pressure switch and a controller; the heating component is arranged on the inner wall of the smoke exhaust pipe, the temperature sensing piece is arranged on the smoke exhaust pipe and transmits the detected temperature information to the controller, and the controller controls the heating component; the wind pressure switch of perception wind pressure size is located smoke pipe smoke vent to with wind pressure size information transmission for the controller, the action of controller control heating element. Through setting up the temperature sensing piece, can detect the temperature of discharging fume the pipe, rethread controller, control heating element's start-up utilizes heating element to heat the inside pipe line of discharging fume, prevents that cold air from discharging fume the inside heat exchanger of gas heater of pipe entering gas heater, and then prevents follow-up loss, owing to adopt electric heating pipe and fan to heat the pipe of discharging fume for the heating is more even, has improved heating efficiency.
Description
Technical Field
The invention belongs to the technical field of gas water heater control, and particularly relates to an anti-freezing gas water heater and a control method applying the same.
Background
The existing gas water heater basically adopts point auxiliary heating anti-freezing equipment of an electric ceramic body, when the external temperature is low, cold air enters the gas water heater through a smoke exhaust pipeline, the gas water heater is easy to freeze and leak water of a heat exchanger due to low temperature, in addition, in northern areas, the outdoor temperature is low in winter, as the smoke exhaust pipe of the gas water heater is positioned outdoors, the smoke exhaust pipe is easy to block due to freezing of condensed water or snow falling, the smoke exhaust is difficult, and the gas water heater can be burnt seriously.
Disclosure of Invention
The invention aims to provide an anti-freezing gas water heater, which can overcome the defect that cold air is easy to enter the gas water heater through a smoke exhaust pipe to damage the gas water heater.
In order to achieve the above purpose, the solution of the invention is as follows:
an anti-freezing gas water heater comprises a gas water heater body, a smoke exhaust pipe, a heating assembly, a temperature sensing piece, a wind pressure switch and a controller; the heating component is arranged on the inner wall of the smoke exhaust pipe, the temperature sensing piece is arranged on the smoke exhaust pipe and transmits the detected temperature information to the controller, and the controller controls the heating component; the wind pressure switch for sensing the wind pressure is arranged at the smoke exhaust port of the smoke exhaust pipe and transmits the wind pressure information to the controller, and the controller controls the heating assembly to act.
Furthermore, heating element includes electric heating pipe and fan, electric heating pipe and fan locate in proper order on the inside inner wall of smoke pipe.
Furthermore, a metal pipe spiral resistance wire and crystallized magnesium oxide powder are arranged in the electric heating pipe.
Furthermore, at least two temperature sensing pieces are arranged, namely a first temperature sensing piece and a second temperature sensing piece, and the first temperature sensing piece is arranged at the smoke exhaust port of the smoke exhaust pipe; the second temperature sensing piece is arranged above the heating assembly.
Further, the controller (6) includes:
the acquisition module is used for acquiring signals of the temperature sensing element (4) and the wind pressure switch;
the comparison module is used for comparing the wind pressure signals of the temperature sensing element (4) and the wind pressure switch (5);
and the execution module is used for controlling the heating assembly (3) to work.
Further, the gas water heater also comprises a control panel, wherein the control panel is provided with a control button, and the control button is connected with the controller (6).
A control method of an anti-freezing gas water heater comprises the following steps:
setting a constant temperature value as a first set value at the controller (6), and setting a constant wind pressure value as a constant wind pressure value at the controller (6);
acquiring a smoke outlet temperature value of the smoke exhaust pipe (2) through the first temperature sensing piece (41) as a first detection temperature value; acquiring a smoke outlet air pressure signal of a smoke exhaust pipe (5) through the air pressure switch (5);
the first detected temperature value and the wind pressure signal are transmitted to an acquisition module of the controller (6);
the acquisition module transmits the information to the comparison module, the comparison module compares the first detected temperature value with a first set value in the controller (6), and the comparison module compares the wind pressure signal with a constant wind pressure value in the controller (6);
if the first detection temperature value is smaller than the first set value, the execution module controls the heating component (3) to start; if the first detection temperature value is larger than or equal to the first set value, the heating assembly (3) maintains a standby state; if the wind pressure signal is smaller than the constant wind pressure value, the execution module controls the heating component (3) to start; if the wind pressure signal is larger than or equal to the constant wind pressure value, the heating component (3) maintains a standby state.
Further, a constant temperature is set in the controller (6) as a second set value; acquiring a temperature value of the environment in which the gas water heater body (1) is positioned through the second temperature sensing element (42), and taking the temperature value as a second detection temperature value;
transmitting the second detected temperature value to an acquisition module of the controller (6);
the comparison module compares the second detected temperature value with a second set value in the controller (6);
if the second detection temperature value is smaller than the second set value, the execution module controls the heating component (3) to start; if the second detection temperature value is greater than or equal to the second set value, the heating assembly (3) maintains a standby state;
after the technical scheme is adopted, by arranging the heating assembly and the temperature sensing piece, the temperature outside the smoke exhaust pipe can be controlled by the controller according to the temperature outside the smoke exhaust pipe, the heating assembly is utilized to heat the inside of the smoke exhaust pipe, cold air is prevented from entering the heat exchanger inside the gas water heater through the smoke exhaust pipe, follow-up loss is prevented, and the smoke exhaust pipe is heated by the heating assembly, so that heating is more uniform, and the heating efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of the heating element structure provided by the present invention;
fig. 3 is a schematic diagram of a prior art structure.
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.
As shown in fig. 3, in the conventional gas water heater, since the gas water heater is placed indoors, but the smoke exhaust pipe is arranged outdoors, it is very easy to make outside cold air flow back into the gas water heater through the smoke exhaust pipe 2, and most of the gas water heaters adopt the electric auxiliary heating anti-freezing device 7 of the electric ceramic body to heat for anti-freezing, but this kind of gas water heater is very easy to cause the gas water heater to enter the gas water heater due to the smoke exhaust pipe 2, which causes the conditions of frost cracking, water leakage and the like of the heat exchanger due to low temperature of the gas water heater.
Example 1:
in view of the above, referring to fig. 1, the present invention provides an anti-freezing gas water heater, which includes a gas water heater body 1, a smoke exhaust pipe 2, a heating assembly 3, a temperature sensing element 4, a wind pressure switch 5 and a controller 6; heating element 3 locates on 2 inside inner walls of pipe of discharging fume, and 6 series connection of controller, temperature sensing piece 4 is installed on pipe 2 of discharging fume for the perception temperature size, and transmit the temperature size of perception for controller 6 through the circuit, the perception wind pressure size wind pressure switch 5 is located 2 discharge fume inlet of pipe of discharging fume to transmit the wind pressure size of perception for controller 6 through the circuit, wherein:
as shown in fig. 2, the heating assembly 3 includes an electric heating pipe 31 and a fan 32, the electric heating pipe 31 and the fan 32 are sequentially disposed on the inner wall of the interior of the smoke exhaust pipe 2, the heating assembly 3 extends out of the smoke exhaust pipe 2, and its heating component is fixed inside the smoke exhaust pipe 2 by using a bolt and a nut, the fan 32 may be disposed above the electric heating pipe 31 or below the electric heating pipe 31; the optimal locates this electric heating pipe 31 below with this fan 32, utilize fan 32 to rotate the steam that produces and evenly blow off inside the exhaust pipe with the steam that produces, heat exhaust pipe 2, prevent that cold air from exhausting pipe 2 flowing backward get into inside the gas heater, prevented that the inside heat exchanger of gas heater from damaging, and owing to adopted electric heating pipe 31 and fan 32, make the heating more even, improved heating efficiency, it is better than gas heater antifreezing effect in the past.
Specifically, a metal tube spiral resistance wire and crystallized magnesium oxide powder are arranged inside the electric heating tube 31, wherein the resistance wire is preferably made of iron-chromium-aluminum material or nickel-chromium electrothermal alloy material; the spiral resistance wire and the crystallized magnesium oxide powder of the metal tube are adopted, so that the heating is more uniform, the freezing prevention is better, the anti-oxidation effect is good, and the damage is not easy.
The first temperature sensing element 41 is arranged at the smoke outlet to detect the change of the external temperature, and then the detected temperature value is transmitted to the controller 6, and the controller 6 receives the signal to control whether the electric heating pipe 31 or the fan 32 of the heating component 3 is started or not. Specifically, when the external temperature is lower than a preset value (for example, 5 ℃), the first temperature sensing element 41 detects a temperature signal, transmits the temperature signal to the controller 6, and the controller 6 controls the electric heating pipe 31 or the fan 32 of the heating assembly 3 to heat the smoke exhaust pipe 2, so that the external cold air is prevented from flowing backwards into the gas water heater, and further the heat exchanger inside the gas water heater is damaged. When the external temperature is higher than the preset value (10 ℃), the controller 6 disconnects the heating circuit and the electric heating tube 31 stops heating. The above two steps are performed circularly. The temperature sensing element 4 is adopted to carry out temperature detection conversion, so that the gas water heater is more suitable for temperature conversion and is not damaged. Secondly, set up second temperature sensing piece 42 above heating element for the temperature of perception gas heater body 1, when the first temperature sensing piece of exhaust port department damages, can not in time respond to the temperature change, at this moment, add the second temperature sensing piece in heating element 3 department, can play the secondary guard action.
In addition, when the outside temperature is extremely low (-2 ℃), the smoke exhaust pipe 2 pipeline is very easy to be blocked, when the smoke exhaust pipe 2 pipeline is frozen by condensed water, the wind pressure switch 5 senses a wind pressure signal at the smoke exhaust port and transmits the sensed wind pressure signal to the controller 6, the controller 6 controls whether the heating component is started or not,
specifically, when the wind pressure switch 5 cannot sense the wind pressure or the sensed wind pressure signal is low, the controller 6 controls the heating component 3 to start, and simultaneously starts the electric heating pipe 31 and the fan 32, and the electric heating pipe 31 and the fan 32 act together to prevent the smoke exhaust pipe from being blocked, so that the temperature of the smoke exhaust pipe 2 is too low to damage the gas water heater, and the heating component 3 can be timely started to start a deicing mode when the smoke exhaust port is blocked effectively.
In the controller 6, an obtaining module is used for obtaining a first detected temperature value obtained by the first temperature sensing element 41, a second detected temperature value obtained by the second temperature sensing element 42, and a wind pressure signal obtained by the wind pressure switch 5; the comparison module compares the first detection temperature value, the second detection temperature value and the wind pressure signal obtained by the acquisition module; and the execution module is used for controlling the heating component 3 to work.
The anti-freezing gas water heater provided by the embodiment further comprises an operation panel, wherein a control button is arranged on the operation panel and is connected with the controller through a control circuit
Through setting up control panel to be provided with control button on control panel, control button links to each other with controller 6, through pressing control button, prevents that the temperature variation can not in time be sensed, can manual control electric heating pipe 31 and fan 32 start, easy operation, convenient and fast.
Example 2:
an anti-freezing control method comprises the following steps:
setting two constant temperature values as a first set value and a second set value respectively at the controller 6, wherein the first set value is smaller than the second set value; and a constant wind pressure value is set in the controller 6;
acquiring a smoke outlet temperature value of the smoke exhaust pipe 2 through the first temperature sensing element 41 to serve as a first detection temperature value; acquiring a temperature value of the environment in the gas water heater through the second temperature sensing element 42, and taking the temperature value as a second detection temperature value; acquiring a smoke exhaust port wind pressure signal of a smoke exhaust pipe 5 through the wind pressure switch 5;
the acquisition module transmits the first detection temperature value and the second detection temperature value and transmits a wind pressure signal to the controller 6;
the obtaining module transmits the information to the comparing module, the comparing module compares the first detected temperature value with a first set value in the controller 6, the comparing module compares the second detected temperature value with a second set value in the controller 6, and the comparing module compares the wind pressure signal with a constant wind pressure value in the controller 6;
if the first detected temperature value is smaller than the first set value, the execution module controls the heating component 3 to start; if the first detection temperature value is not less than the first set value, the heating assembly 3 maintains a standby state; if the second detected temperature value is smaller than the second set value, the execution module controls the heating component 3 to start; if the second detected temperature value is not less than the second set value, the heating assembly 3 maintains a standby state; if the wind pressure signal is smaller than the constant wind pressure value, the execution module controls the heating component 3 to start; if the wind pressure signal is not less than the constant wind pressure value, the heating component 3 maintains a standby state.
When the first temperature sensing element 41 arranged at the smoke exhaust port is damaged or the line is short-circuited, in order to prevent the gas water heater from being frozen, the second temperature sensing element 42 is arranged above the heating assembly 3 and detects the entering air constantly. When the second detected temperature value is smaller than the second set value, the execution module controls the heating component 3 to start, and the smoke exhaust pipe 2 is heated. And the wind pressure signal is noticed at any moment, when the wind pressure signal is too low, the deicing mode needs to be manually started, and meanwhile, the electric heating pipe 31 and the fan 32 are started to deice the smoke outlet, so that the gas water heater is prevented from being frozen.
The present invention is not limited to the above preferred embodiments, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An anti-freezing gas water heater is characterized by comprising a gas water heater body (1), a smoke exhaust pipe (2), a heating assembly (3), a temperature sensing element (4), a wind pressure switch (5) and a controller (6); the heating component (3) is arranged on the inner wall of the smoke exhaust pipe (2), the temperature sensing piece (4) is arranged on the smoke exhaust pipe (2) and transmits the detected temperature information to the controller (6), and the controller (6) controls the heating component (3); perception wind pressure size wind pressure switch (5) are located discharge fume pipe (2) smoke vent department to with wind pressure size information transmission give controller (6), controller (6) control heating element (3) action.
2. The anti-freezing gas water heater as claimed in claim 1, wherein the heating assembly comprises an electric heating pipe (31) and a fan (32), and the electric heating pipe (31) and the fan (32) are sequentially arranged on the inner wall of the smoke exhaust pipe (2).
3. The anti-freezing gas water heater as claimed in claim 2, wherein a metal tube spiral resistance wire and crystalline magnesium oxide powder are arranged in the electric heating tube (31).
4. The anti-freezing gas water heater as claimed in claim 1, 2 or 3, wherein the number of the temperature sensing elements (4) is at least two, namely a first temperature sensing element (41) and a second temperature sensing element (42), and the first temperature sensing element (41) is arranged at the smoke outlet of the smoke exhaust pipe (2); the second temperature sensing element (42) is arranged above the heating component (3).
5. Anti-freeze gas water heater according to claim 4, characterized in that said controller (6) comprises:
the acquisition module is used for acquiring signals of the temperature sensing element (4) and the wind pressure switch;
the comparison module is used for comparing the wind pressure signals of the temperature sensing element (4) and the wind pressure switch (5);
and the execution module is used for controlling the heating assembly (3) to work.
6. An anti-freezing gas water heater according to claim 4, characterized in that it further comprises a control panel provided with control buttons connected to said controller (6).
7. A control method of an anti-freezing gas water heater as claimed in any one of claims 1 to 6, characterized by comprising the steps of:
setting a constant temperature value as a first set value at the controller (6), and setting a constant wind pressure value as a constant wind pressure value at the controller (6);
acquiring a smoke outlet temperature value of the smoke exhaust pipe (2) through the first temperature sensing piece (41) as a first detection temperature value; acquiring a smoke outlet air pressure signal of a smoke exhaust pipe (5) through the air pressure switch (5);
the first detected temperature value and the wind pressure signal are transmitted to an acquisition module of the controller (6);
the acquisition module transmits the information to the comparison module, the comparison module compares the first detected temperature value with a first set value in the controller (6), and the comparison module compares the wind pressure signal with a constant wind pressure value in the controller (6);
if the first detection temperature value is smaller than the first set value, the execution module controls the heating component (3) to start; if the first detection temperature value is larger than or equal to the first set value, the heating assembly (3) maintains a standby state; if the wind pressure signal is smaller than the constant wind pressure value, the execution module controls the heating component (3) to start; if the wind pressure signal is larger than or equal to the constant wind pressure value, the heating component (3) maintains a standby state.
8. The control method of an antifreeze gas water heater according to claim 7, characterized in that a constant temperature is also set in the controller (6) as the second set value; acquiring a temperature value of the environment in which the gas water heater body (1) is positioned through the second temperature sensing element (42), and taking the temperature value as a second detection temperature value;
transmitting the second detected temperature value to an acquisition module of the controller (6);
the comparison module compares the second detected temperature value with a second set value in the controller (6);
if the second detection temperature value is smaller than the second set value, the execution module controls the heating component (3) to start; if the second detection temperature value is larger than or equal to the second set value, the heating assembly (3) maintains a standby state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911244475.4A CN110986371A (en) | 2019-12-06 | 2019-12-06 | Anti-freezing gas water heater and control method applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911244475.4A CN110986371A (en) | 2019-12-06 | 2019-12-06 | Anti-freezing gas water heater and control method applying same |
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| Publication Number | Publication Date |
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| CN110986371A true CN110986371A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911244475.4A Pending CN110986371A (en) | 2019-12-06 | 2019-12-06 | Anti-freezing gas water heater and control method applying same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777337A (en) * | 2022-04-27 | 2022-07-22 | 广东万和新电气股份有限公司 | Gas water heater and control method thereof |
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2019
- 2019-12-06 CN CN201911244475.4A patent/CN110986371A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777337A (en) * | 2022-04-27 | 2022-07-22 | 广东万和新电气股份有限公司 | Gas water heater and control method thereof |
| CN114777337B (en) * | 2022-04-27 | 2024-04-12 | 广东万和新电气股份有限公司 | Gas water heater and control method thereof |
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