CN112460812A - Fan control method for wall-mounted boiler to strengthen smoke pipe blockage resistance and wall-mounted boiler applying fan control method - Google Patents
Fan control method for wall-mounted boiler to strengthen smoke pipe blockage resistance and wall-mounted boiler applying fan control method Download PDFInfo
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- CN112460812A CN112460812A CN202011179511.6A CN202011179511A CN112460812A CN 112460812 A CN112460812 A CN 112460812A CN 202011179511 A CN202011179511 A CN 202011179511A CN 112460812 A CN112460812 A CN 112460812A
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- 239000000779 smoke Substances 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000001965 increasing effect Effects 0.000 claims abstract description 13
- 230000002708 enhancing effect Effects 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- 238000005728 strengthening Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
- F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
Abstract
The invention discloses a fan control method for enhancing smoke pipe blockage resistance of a wall-mounted furnace and the wall-mounted furnace using the fan control method, wherein the fan control method for enhancing smoke pipe blockage resistance of the wall-mounted furnace comprises the following steps: judging whether the real-time fan rotating speed is greater than a preset fan rotating speed, if so, judging whether the real-time fan rotating speed is greater than a preset rotating speed upper limit value, if so, extinguishing the wall-mounted boiler and giving an alarm, and if not, compensating the fan rotating speed; and judging whether the rotation speed of the fan after compensation is greater than a preset rotation speed upper limit value or not, if so, extinguishing the wall-mounted furnace and giving an alarm, and if not, normally operating at the compensated wind pressure and rotation speed. According to the fan control method for strengthening the smoke pipe blockage resistance of the wall-mounted furnace, the upper limit threshold value of the rotating speed of the fan can be set to be larger by increasing the voltage of the fan to compensate the rotating speed of the fan when the smoke pipe is blocked, the smoke pipe blockage resistance of the whole wall-mounted furnace is enhanced while the smoke emission is ensured to meet the requirement, and the material cost of a wind pressure switch part is saved.
Description
Technical Field
The invention belongs to the technical field of wall-mounted furnaces, and particularly relates to a fan control method for wall-mounted furnace to strengthen smoke pipe blockage resistance and a wall-mounted furnace using the same.
Background
The conventional wall-mounted furnace controlled by the direct current fan on the market usually judges whether an air inlet smoke pipe is blocked or not by directly monitoring the change of the rotating speed of the fan or monitoring the change of the smoke exhaust air pressure difference by utilizing an air pressure switch. When the smoke tube is blocked, in order to ensure that the emission of the smoke meets the national standard requirements, the upper limit threshold of the rotating speed of the fan is usually set to be lower, but the smoke tube blocking resistance of the wall-mounted furnace is weakened.
Disclosure of Invention
In order to solve the problems, the invention provides a fan control method for strengthening the smoke tube blockage resistance of a wall-mounted furnace, wherein the upper limit threshold value of the rotating speed of a fan is set to be larger, so that the smoke tube blockage resistance of the whole wall-mounted furnace is enhanced while the smoke emission is ensured to meet the requirements.
Another object of the present invention is to provide a wall hanging stove.
The technical scheme adopted by the invention is as follows:
a fan control method for wall-mounted boiler reinforced smoke tube blockage resistance comprises the following steps:
s1, after a fan of the wall-mounted furnace is started, the fan normally operates at a preset voltage and a preset rotating speed, and the rotating speed of the fan is detected in real time;
s2, judging whether the real-time fan rotating speed is greater than a preset fan rotating speed or not, generating smoke tube blockage, if so, judging whether the real-time fan rotating speed is greater than a preset rotating speed upper limit value or not, if so, extinguishing the wall-hanging furnace and alarming the smoke tube blockage, and if not, compensating the fan rotating speed;
and S3, judging whether the rotation speed of the fan after compensation is greater than a preset rotation speed upper limit value, if so, extinguishing the wall-mounted boiler and alarming the blockage of the smoke tube, and if not, normally operating at the compensated wind pressure and rotation speed.
Preferably, in S2, the method further includes: and if the real-time fan rotating speed is not greater than the preset rotating speed, the fan still normally operates at the preset voltage and rotating speed.
Preferably, in S2, the compensation fan rotation speed is specifically:
and calculating the fan rotating speed compensation quantity, gradually increasing the fan voltage and increasing the fan rotating speed until the fan rotating speed increment is equal to the fan rotating speed compensation quantity.
Preferably, the calculation formula of the fan rotation speed compensation amount is as follows:
△n＝k(n0*U1)/U0-n1
wherein, the delta n is the fan rotating speed compensation quantity, the k is a constant, and the n is0For a predetermined fan speed, U0For a predetermined fan voltage, U1Is the real-time voltage of the fan, n1The real-time rotating speed of the fan.
Preferably, the rotation speed upper limit value is set at the time of factory shipment.
The other technical scheme of the invention is realized as follows:
a wall-mounted furnace comprises a fan control method for enhancing smoke pipe blockage resistance of the wall-mounted furnace.
Compared with the prior art, the fan control method for strengthening the smoke pipe blockage resistance of the wall-mounted furnace can set the upper limit threshold value of the fan rotating speed to be larger by increasing the fan voltage to compensate the fan rotating speed when the smoke pipe is blocked, so that the smoke pipe blockage resistance of the whole wall-mounted furnace is enhanced while the smoke emission is ensured to meet the requirement, and the material cost of a wind pressure switch part is saved.
Drawings
Fig. 1 is a flowchart of a fan control method for enhancing smoke tube blockage resistance of a wall-mounted boiler according to embodiment 1 of the present invention;
fig. 2 is a specific flowchart of a fan control method for enhancing smoke tube blockage resistance of a wall-mounted boiler according to embodiment 1 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.
The embodiment 1 of the invention provides a fan control method for enhancing smoke pipe blockage resistance of a wall-mounted furnace, as shown in fig. 1-2, comprising the following steps:
s1, after a fan of the wall-mounted furnace is started, the fan normally operates at a preset voltage and a preset rotating speed, and the rotating speed of the fan is detected in real time;
s2, judging whether the real-time fan rotating speed is greater than a preset fan rotating speed or not, generating smoke tube blockage, if so, judging whether the real-time fan rotating speed is greater than a preset rotating speed upper limit value or not, if so, extinguishing the wall-hanging furnace and alarming the smoke tube blockage, and if not, compensating the fan rotating speed;
and S3, judging whether the rotation speed of the fan after compensation is greater than a preset rotation speed upper limit value, if so, extinguishing the wall-mounted boiler and alarming the blockage of the smoke tube, and if not, normally operating at the compensated wind pressure and rotation speed.
In this way, after the fan of the wall-mounted furnace is started, the fan normally operates at a preset voltage and a preset rotating speed and detects the real-time rotating speed of the fan; then judging whether the real-time fan rotating speed is greater than a preset fan rotating speed to generate smoke tube blockage, if so, judging whether the real-time fan rotating speed is greater than a preset rotating speed upper limit value, if so, flameout the wall-mounted boiler and alarming the smoke tube blockage, and if not, compensating the fan rotating speed; and judging whether the rotation speed of the fan after compensation is greater than a preset rotation speed upper limit value or not, if so, extinguishing the wall-mounted furnace and alarming the blockage of the smoke tube, and if not, normally operating the wall-mounted furnace at the compensated wind pressure and the compensated rotation speed, so that the upper limit threshold value of the rotation speed of the fan can be set to be larger, the smoke tube blockage resistance of the whole wall-mounted furnace is enhanced while the smoke emission is ensured to meet the requirement, and the material cost of a wind pressure switch part is saved.
In S2, the method further includes: and if the real-time fan rotating speed is not greater than the preset rotating speed, the fan still normally operates at the preset voltage and rotating speed.
Therefore, if the real-time rotating speed of the fan is not greater than the preset rotating speed, the normal operation of the wall-mounted furnace is indicated, the blockage does not occur, and the fan still operates normally at the preset voltage and the preset rotating speed.
In S2, the compensation fan rotation speed is specifically:
and calculating the fan rotating speed compensation quantity, gradually increasing the fan voltage and increasing the fan rotating speed until the fan rotating speed increment is equal to the fan rotating speed compensation quantity.
Therefore, the fan rotating speed compensation quantity is calculated, the fan voltage is gradually increased according to the fan rotating speed compensation quantity, the fan rotating speed is increased until the fan rotating speed increment is equal to the fan rotating speed compensation quantity, and the fan rotating speed matched with the fan rotating speed can be compensated for the fan under the condition of not serious blockage.
The calculation formula of the fan rotating speed compensation amount is as follows:
△n＝k(n0*U1)/U0-n1
wherein, the delta n is the fan rotating speed compensation quantity, the k is a constant, and the n is0For a predetermined fan speed, U0For a predetermined fan voltage, U1Is the real-time voltage of the fan, n1The real-time rotating speed of the fan.
Therefore, the fan rotating speed compensation amount can be calculated according to the preset fan rotating speed, the preset fan voltage, the real-time voltage of the fan and the real-time rotating speed of the fan through a calculation formula of the fan rotating speed compensation amount, and a reference value is provided for increasing the rotating speed of the fan.
The upper limit value of the rotating speed is set when the device leaves a factory.
Therefore, the upper limit value of the rotating speed is set when the furnace leaves the factory, namely, the production technician can set the corresponding upper limit value of the rotating speed according to the specific wall-mounted furnace, so as to achieve better effect of resisting the blockage of the smoke pipe.
According to the fan control method for strengthening the smoke pipe blockage resistance of the wall-mounted furnace, the upper limit threshold value of the rotating speed of the fan can be set to be larger by increasing the voltage of the fan to compensate the rotating speed of the fan when the smoke pipe is blocked, the smoke pipe blockage resistance of the whole wall-mounted furnace is enhanced while the smoke emission is ensured to meet the requirement, and the material cost of a wind pressure switch part is saved.
Example 2
The embodiment 2 of the invention provides a wall-mounted furnace, which comprises a fan control method for enhancing smoke pipe blockage resistance of the wall-mounted furnace.
According to the wall-mounted furnace, the upper limit threshold value of the rotating speed of the fan can be set to be larger by increasing the voltage of the fan to compensate the rotating speed of the fan when the smoke pipe is blocked, the smoke pipe blocking resistance of the whole wall-mounted furnace is enhanced while the smoke emission is ensured to meet the requirement, and the material cost of a wind pressure switch part is saved.
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 (6)
1. A fan control method for wall-mounted boiler reinforced smoke tube blockage resistance is characterized by comprising the following steps:
s1, after a fan of the wall-mounted furnace is started, the fan normally operates at a preset voltage and a preset rotating speed, and the rotating speed of the fan is detected in real time;
s2, judging whether the real-time fan rotating speed is greater than a preset fan rotating speed or not, generating smoke tube blockage, if so, judging whether the real-time fan rotating speed is greater than a preset rotating speed upper limit value or not, if so, extinguishing the wall-hanging furnace and alarming the smoke tube blockage, and if not, compensating the fan rotating speed;
and S3, judging whether the rotation speed of the fan after compensation is greater than a preset rotation speed upper limit value, if so, extinguishing the wall-mounted boiler and alarming the blockage of the smoke tube, and if not, normally operating at the compensated wind pressure and rotation speed.
2. The fan control method for enhancing smoke tube blockage resistance of the wall-hanging stove according to claim 1, wherein in the step S2, the fan control method further comprises: and if the real-time fan rotating speed is not greater than the preset rotating speed, the fan still normally operates at the preset voltage and rotating speed.
3. The fan control method for enhancing smoke pipe blockage resistance of the wall-hanging stove according to claim 1 or 2, wherein in the step S2, the compensation fan rotating speed is specifically:
and calculating the fan rotating speed compensation quantity, gradually increasing the fan voltage and increasing the fan rotating speed until the fan rotating speed increment is equal to the fan rotating speed compensation quantity.
4. The fan control method for enhancing smoke pipe blockage resistance of the wall-hanging furnace according to claim 3, wherein the fan rotation speed compensation amount is calculated by the formula:
△n＝k(n0*U1)/U0-n1
wherein, the delta n is the fan rotating speed compensation quantity, the k is a constant, and the n is0For a predetermined fan speed, U0For a predetermined fan voltage, U1Is the real-time voltage of the fan, n1The real-time rotating speed of the fan.
5. The fan control method for enhancing smoke pipe blockage resistance of the wall-hanging stove according to claim 4, wherein the upper limit value of the rotating speed is set in factory production.
6. A wall-hanging stove characterized in that it comprises a fan control method applying the wall-hanging stove of any one of claims 1 to 5 for enhancing the resistance to smoke pipe blockage.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011179511.6A CN112460812A (en) | 2020-10-29 | 2020-10-29 | Fan control method for wall-mounted boiler to strengthen smoke pipe blockage resistance and wall-mounted boiler applying fan control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011179511.6A CN112460812A (en) | 2020-10-29 | 2020-10-29 | Fan control method for wall-mounted boiler to strengthen smoke pipe blockage resistance and wall-mounted boiler applying fan control method |
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| CN112460812A true CN112460812A (en) | 2021-03-09 |
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| CN202011179511.6A Pending CN112460812A (en) | 2020-10-29 | 2020-10-29 | Fan control method for wall-mounted boiler to strengthen smoke pipe blockage resistance and wall-mounted boiler applying fan control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048657A (en) * | 2021-04-29 | 2021-06-29 | 芜湖美的厨卫电器制造有限公司 | Wind resistance control method for gas water heater and gas water heater |
| CN114294836A (en) * | 2021-12-09 | 2022-04-08 | 华帝股份有限公司 | Wall-mounted boiler and operation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08313061A (en) * | 1995-05-18 | 1996-11-29 | Rinnai Corp | Fan heater |
| CN102538214A (en) * | 2012-01-19 | 2012-07-04 | 中山华帝燃具股份有限公司 | Smoke discharge blockage control method and system for gas water heater |
| CN104990268A (en) * | 2015-07-14 | 2015-10-21 | 佛山市顺德万和电气配件有限公司 | Blockage protection method for feed pipe and exhaust pipe of fully-premixed gas heating water heater |
| CN111426070A (en) * | 2020-05-21 | 2020-07-17 | 珠海格力电器股份有限公司 | Wall-mounted furnace smoke tube detection method and device and wall-mounted furnace |
-
2020
- 2020-10-29 CN CN202011179511.6A patent/CN112460812A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08313061A (en) * | 1995-05-18 | 1996-11-29 | Rinnai Corp | Fan heater |
| CN102538214A (en) * | 2012-01-19 | 2012-07-04 | 中山华帝燃具股份有限公司 | Smoke discharge blockage control method and system for gas water heater |
| CN104990268A (en) * | 2015-07-14 | 2015-10-21 | 佛山市顺德万和电气配件有限公司 | Blockage protection method for feed pipe and exhaust pipe of fully-premixed gas heating water heater |
| CN111426070A (en) * | 2020-05-21 | 2020-07-17 | 珠海格力电器股份有限公司 | Wall-mounted furnace smoke tube detection method and device and wall-mounted furnace |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048657A (en) * | 2021-04-29 | 2021-06-29 | 芜湖美的厨卫电器制造有限公司 | Wind resistance control method for gas water heater and gas water heater |
| CN113048657B (en) * | 2021-04-29 | 2022-10-18 | 芜湖美的厨卫电器制造有限公司 | Wind-resistant control method for gas water heater and gas water heater |
| CN114294836A (en) * | 2021-12-09 | 2022-04-08 | 华帝股份有限公司 | Wall-mounted boiler and operation method thereof |
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Application publication date: 20210309 |