CN102147029A - Gas source control method of self-adaptive gas water heater - Google Patents
Gas source control method of self-adaptive gas water heater Download PDFInfo
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- CN102147029A CN102147029A CN 201110024695 CN201110024695A CN102147029A CN 102147029 A CN102147029 A CN 102147029A CN 201110024695 CN201110024695 CN 201110024695 CN 201110024695 A CN201110024695 A CN 201110024695A CN 102147029 A CN102147029 A CN 102147029A
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Abstract
The invention discloses a gas source control method of a self-adaptive gas water heater, which is characterized in that the gas source control method comprises the following steps: adjusting the change interval value according to the secondary pressure of a gas source and controlling the rotating speed of a fan and the quantity of fuel conveyed by a proportional valve to a spray nozzle. During the operation, the gas water heater can be automatically or manually switched to the different states according to the gas source to select an optimal working state. The gas source control method has a simple structure and is convenient to use.
Description
Technical field
The present invention relates to technical field of water heaters, relate to a kind of self adaption gas water-heater more specifically.
Background technique
Existing gas water-heater can only adapt to a kind of gas kind, when gas water-heater uses different gas kind, needs to change relevant structural member, and the simplest is to change nozzle, uses inconvenient.For this reason, people begin to research and develop the gas water-heater that can adapt to different sources of the gas, as Chinese patent application number is 94244472, the applying date is on November 9th, 1994, denomination of invention is the full-automatic gas-fired water heater control air source equipment, the application people is the patent application of Gas Burners Research Center, guangdong Polytechnic College, its content: a kind of full-automatic gas-fired water heater control air source equipment, include support, coil carrier, guide sleeve, pole shoe, armature, spring, spring sheet, the longitudinal cross-section that it is characterized in that armature is that stepped shaft is cylindric, under the situation that does not increase volume and coil turn, because alleviating of own wt, improved the adhesive ability of armature, can adapt to different sources of the gas, the required throughput of different size water heater also can corresponding reduction control gear physical dimension, on this basis, the flat cylindrical body also can be made in the bottom of armature, both increased the magnetic circuit area, can make the armature easy processing again.Provide a kind of concrete structure that adapts to different sources of the gas in this technological scheme, but the result is comparatively complicated, manufacture cost is higher, is difficult to apply.
Summary of the invention
Purpose of the present invention is exactly provide for the deficiency that solves prior art a kind of simple in structure, easy to use, is applicable to the self adaption gas water-heater source of the gas controlling method that industrial and large-scale is produced.
The present invention adopts following technical solution to realize above-mentioned purpose: a kind of self adaption gas water-heater source of the gas controlling method, it is characterized in that, it is to receive water flow, Proportional valve electric current and temperature difference data by data acquisition module, distinguish source of the gas by control system according to the interval judgement under the data that collect, and be adjusted to target temperature by Proportional valve.
As further specifying of such scheme, it is to press according to the source of the gas secondary to regulate the constant interval size, and control rotation speed of fan and Proportional valve are toward the amount of nozzle delivery of fuel gas.
Described source of the gas comprises rock gas and liquid gas, artificial coal gas, and blower fan adopts the single speed AC motor of taking out structure by force, and when nozzle was identical, the rock gas secondary was pressed than liquid gas height, and rotation speed of fan remains unchanged with the increase of Proportional valve electric current.
Described source of the gas comprises rock gas and liquid gas, artificial coal gas, and blower fan adopts the dc fan of strong drum structure, and the dc fan flame combustion is influenced by rotation speed of fan, and is consistent with interval N the inside rotation speed of fan at adjacent interval M.
The beneficial effect that the present invention adopts above-mentioned technical solution to reach is:
During gas water heater working of the present invention, can switch different conditions,, select a kind of optimum Working, need not to change the size of nozzle by regulating nozzle and wind-force size according to the source of the gas automatic or manual, use and control all quite convenient.
Description of drawings
Fig. 1 is Proportional valve electric current of the present invention and rotation speed of fan graph of a relation;
Fig. 2 presses change curve for Proportional valve electric current of the present invention with secondary;
Fig. 3 is a workflow diagram of the present invention;
Fig. 4 is that rotation speed of fan of the present invention is with Proportional valve electric current change curve.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of self adaption gas water-heater of the present invention source of the gas controlling method, it is to receive water flow, Proportional valve electric current and temperature difference data by data acquisition module, distinguish source of the gas by control system according to the interval judgement under the data that collect, and be adjusted to target temperature by Proportional valve, wherein, source of the gas comprises rock gas and liquid gas, artificial coal gas.
Fig. 1 is the relation of Proportional valve electric current and rotation speed of fan quality inspection, and Fig. 2 presses change curve for the Proportional valve electric current with secondary, adopts 10 liters and takes out the type constant temperature machine by force;
This type adopts the single speed AC motor, takes out structure by force.
Because of taking out structure by force, mainly by the ejector capacity of nozzle, rotation speed of fan is smaller to combustion effects for primary air.Then relation such as figure below of Proportional valve electric current and rotation speed of fan quality inspection:
Square tube: nozzle 6 * φ 1.45, three three automatic segmentations;
Because of the same ratio valve opening rock gas nozzle of loading on an equal basis bigger than liquid gas.Otherwise if district's nozzle is identical, then the rock gas secondary is pressed than liquid gas height.Then the secondary pressure should be lower than 2000Pa before the nozzle, gets 1800Pa.
Suppose the interval 5KW～20KW of being of 10 liters of water heater load variations, then six nozzle Load Regulation intervals are 10KW～20KW.Press according to secondary before the following formula calculating nozzle:
Q---heat load, kw;
N---nozzle number
μ---nozzle orifice coeficient is got 0.85 and is calculated;
P
2---secondary is pressed before the nozzle, Pa;
S---combustion gas relative density;
H
L---combustion gas lower calorific value, MJ/Nm
3
Suppose liquid gas lower calorific value 101MJ/Nm
3, relative density 1.69; Rock gas lower calorific value 36.4MJ/Nm
3, relative density 0.575.
Calculating rock gas secondary pressure constant interval is 450～1650Pa, liquid gas 150～680Pa.
Then can to regulate the scope that secondary presses be 150Pa～1650Pa to Proportional valve.
Being 90～290mA between the Proportional valve Current Zone, is 90mA～160mA between liquid gas Proportional valve adjusting Current Zone as calculated, is 130～290mA between rock gas electric current regulatory region.130～160mA has coincidence in the adjustment process.The Proportional valve electric current is pressed change curve such as figure below with secondary, in interval B coincidence is arranged.
In the actual debug process of Proportional valve, be 70mA between liquid gas electric current regulatory region, rock gas is 160mA.It is big that the liquid gas adjusting may temperature fluctuation occur, and the rock gas governing speed waits situation slowly.Can be by programming in the A interval, electric current is regulated (for example 0.5mA) with n mA, debug in the mode of m mA (for example 1.5mA) in the C interval, in overlapping interval B, calculates the mode which interval the B interval be under the jurisdiction of with temperature, water yield parameter and judge the electric current regulative mode.
Embodiment 2
Fig. 4 be rotation speed of fan with Proportional valve electric current change curve, adopt 10 liters strong drum type constant temperature machines.
This type adopts dc fan, and influenced by rotation speed of fan bigger because of strong drum machine flame combustion, so different at the interval rotation speed of fan of difference.Blower fan speed change, control are comparatively complicated, want consistent at interval M with interval N the inside rotation speed of fan.If rotation speed of fan increases along with the increase of Proportional valve electric current always, in interval N, will occur during gas-firing from flame, take off bad phenomenon such as fire.
Above-described only is preferred implementation of the present invention, should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (4)
1. self adaption gas water-heater source of the gas controlling method, it is characterized in that, it is to receive water flow, Proportional valve electric current and temperature difference data by data acquisition module, distinguishes source of the gas by control system according to the interval judgement under the data that collect, and is adjusted to target temperature by Proportional valve.
2. self adaption gas water-heater source of the gas controlling method according to claim 1 is characterized in that, it is to press according to the source of the gas secondary to regulate the constant interval size, and control rotation speed of fan and Proportional valve are toward the amount of nozzle delivery of fuel gas.
3. self adaption gas water-heater source of the gas controlling method according to claim 1, it is characterized in that, described source of the gas comprises rock gas and liquid gas, artificial coal gas, blower fan adopts the single speed AC motor of taking out structure by force, when nozzle is identical, the rock gas secondary is pressed than liquid gas height, and rotation speed of fan remains unchanged with the increase of Proportional valve electric current.
4. self adaption gas water-heater source of the gas controlling method according to claim 1, it is characterized in that, it is characterized in that, described source of the gas comprises rock gas and liquid gas, artificial coal gas, blower fan adopts the dc fan of strong drum structure, the dc fan flame combustion is influenced by rotation speed of fan, and the inside rotation speed of fan wants consistent between adjacent electric current regulatory region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110024695 CN102147029B (en) | 2011-01-21 | 2011-01-21 | Gas source control method of self-adaptive gas water heater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110024695 CN102147029B (en) | 2011-01-21 | 2011-01-21 | Gas source control method of self-adaptive gas water heater |
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| CN102147029A true CN102147029A (en) | 2011-08-10 |
| CN102147029B CN102147029B (en) | 2013-09-04 |
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| CN 201110024695 Expired - Fee Related CN102147029B (en) | 2011-01-21 | 2011-01-21 | Gas source control method of self-adaptive gas water heater |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236108A (en) * | 2013-06-21 | 2014-12-24 | 青岛经济技术开发区海尔热水器有限公司 | Gas secondary pressure detecting and adjusting device and method of gas water heater |
| CN104422142A (en) * | 2013-09-02 | 2015-03-18 | 海尔集团公司 | Method for controlling water heater adaptable to gas with various heat values |
| CN104422134A (en) * | 2013-08-20 | 2015-03-18 | 海尔集团公司 | Gas water heater and control method and system thereof |
| CN106032937A (en) * | 2015-03-13 | 2016-10-19 | 保登科技股份有限公司 | Automatic temperature control system of gas water heater |
| CN109612113A (en) * | 2018-10-26 | 2019-04-12 | 华帝股份有限公司 | Gas source judgment method and control method of self-adaptive gas water heater |
| CN109631344A (en) * | 2018-11-14 | 2019-04-16 | 广东万和新电气股份有限公司 | More gas source self-adapting regulation methods, control system and the gas heater with it |
| CN110207387A (en) * | 2018-09-04 | 2019-09-06 | 华帝股份有限公司 | Self-adaptive control method for air pressure system of gas water heater |
| CN110230886A (en) * | 2018-10-25 | 2019-09-13 | 华帝股份有限公司 | Control method and control system of gas water heater with self-adaptive gas source |
| CN110926032A (en) * | 2019-11-01 | 2020-03-27 | 华帝股份有限公司 | Fan air volume adjusting method for gas water heater and gas water heater |
| CN112524636A (en) * | 2020-11-30 | 2021-03-19 | 芜湖美的厨卫电器制造有限公司 | Control method and device of gas water heater, gas water heater and storage medium |
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| JPS6246160A (en) * | 1985-08-23 | 1987-02-28 | Hitachi Chem Co Ltd | Hot-water supplier |
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| CN2204974Y (en) * | 1994-11-09 | 1995-08-09 | 广东工学院燃气用具研制中心 | Gas source controller of automatic gas-burning water heater |
| TW200842295A (en) * | 2007-04-16 | 2008-11-01 | Taiwan Sakura Corp | Intelligent ignition-adjusting hot water heater and its method |
| KR20110001196A (en) * | 2009-06-29 | 2011-01-06 | 린나이코리아 주식회사 | The boiler control device where the gas consumption indication and set are possible and the method |
-
2011
- 2011-01-21 CN CN 201110024695 patent/CN102147029B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6246160A (en) * | 1985-08-23 | 1987-02-28 | Hitachi Chem Co Ltd | Hot-water supplier |
| US5092519A (en) * | 1991-02-05 | 1992-03-03 | Bradford-White Corporation | Control system for water heaters |
| CN2204974Y (en) * | 1994-11-09 | 1995-08-09 | 广东工学院燃气用具研制中心 | Gas source controller of automatic gas-burning water heater |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236108A (en) * | 2013-06-21 | 2014-12-24 | 青岛经济技术开发区海尔热水器有限公司 | Gas secondary pressure detecting and adjusting device and method of gas water heater |
| CN104422134A (en) * | 2013-08-20 | 2015-03-18 | 海尔集团公司 | Gas water heater and control method and system thereof |
| CN104422142B (en) * | 2013-09-02 | 2020-12-22 | 青岛经济技术开发区海尔热水器有限公司 | Water heater control method suitable for various heat value gas |
| CN104422142A (en) * | 2013-09-02 | 2015-03-18 | 海尔集团公司 | Method for controlling water heater adaptable to gas with various heat values |
| CN106032937A (en) * | 2015-03-13 | 2016-10-19 | 保登科技股份有限公司 | Automatic temperature control system of gas water heater |
| CN110207387A (en) * | 2018-09-04 | 2019-09-06 | 华帝股份有限公司 | Self-adaptive control method for air pressure system of gas water heater |
| CN110230886A (en) * | 2018-10-25 | 2019-09-13 | 华帝股份有限公司 | Control method and control system of gas water heater with self-adaptive gas source |
| CN110230886B (en) * | 2018-10-25 | 2021-05-18 | 华帝股份有限公司 | Control method and control system of gas water heater with self-adaptive gas source |
| CN109612113A (en) * | 2018-10-26 | 2019-04-12 | 华帝股份有限公司 | Gas source judgment method and control method of self-adaptive gas water heater |
| CN109631344A (en) * | 2018-11-14 | 2019-04-16 | 广东万和新电气股份有限公司 | More gas source self-adapting regulation methods, control system and the gas heater with it |
| CN109631344B (en) * | 2018-11-14 | 2024-01-02 | 广东万和新电气股份有限公司 | Multi-air-source self-adaptive adjustment method, control system and gas water heater with same |
| CN110926032A (en) * | 2019-11-01 | 2020-03-27 | 华帝股份有限公司 | Fan air volume adjusting method for gas water heater and gas water heater |
| CN110926032B (en) * | 2019-11-01 | 2021-05-18 | 华帝股份有限公司 | Fan air volume adjusting method for gas water heater and gas water heater |
| CN112524636A (en) * | 2020-11-30 | 2021-03-19 | 芜湖美的厨卫电器制造有限公司 | Control method and device of gas water heater, gas water heater and storage medium |
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| CN102147029B (en) | 2013-09-04 |
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