CN105509299A - Thermocouple-induced self-adaptation premixed combustion device and water heater - Google Patents
Thermocouple-induced self-adaptation premixed combustion device and water heater Download PDFInfo
- Publication number
- CN105509299A CN105509299A CN201610013860.8A CN201610013860A CN105509299A CN 105509299 A CN105509299 A CN 105509299A CN 201610013860 A CN201610013860 A CN 201610013860A CN 105509299 A CN105509299 A CN 105509299A
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- China
- Prior art keywords
- thermocouple
- circuit
- output
- ratio valve
- gas ratio
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/124—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
- F23N1/022—Regulating fuel supply conjointly with air supply using electronic means
-
- 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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Combustion (AREA)
Abstract
The invention discloses a thermocouple-induced self-adaptation premixed combustion device and water heater which comprises a heat exchanger, a combustor, a blower, a combustible gas proportioning valve, a thermocouple body, a combustible gas pipe, a thermocouple detection circuit and a control circuit, wherein the heat exchanger is formed by laminating a plurality of plate-shaped communicated fluid cavities; a cylindrical combustion space is formed inside the heat exchanger; the combustor is arranged in the combustion space; the combustor is connected with an air outlet of the blower; the combustible gas proportioning valve is connected to the combustible gas pipe in series; the combustible gas proportioning valve, blower, control circuit, thermocouple detection circuit and thermocouple body are electrically connected with each other; and one end of the thermocouple body extends to the inside of the combustion space and is arranged on the shell on one end of the combustion space. The thermocouple-induced self-adaptation premixed combustion device has the advantages of high durability, high heat exchange rate, energy saving, environment friendliness and high safety and reliability, avoids the defective phenomena of abnormal sound during combustion, high harmful fume emission and the like, and thus, is a product with excellent technicality, economical efficiency and practicality.
Description
[technical field]
The present invention relates to a kind of self adaptation premixing combustion apparatus of thermocouple induction;
The present invention relates to a kind of hot water apparatus adopting the self adaptation premixing combustion apparatus of above-mentioned thermocouple induction.
[background technology]
In the prior art, gas-heating water heater, gas-fired water heater etc. are different from the hybrid mode of air by the combustion system, particularly combustion gas of combustion gas, can be divided into partly-premixed burning type and full premix combustion type.Due to premixing combustion apparatus in the prior art, because of gas source component, air pressure, environment for use difference easily occurred that the thermal efficiency is not high, burning abnormal sound, harmful smoke discharge capacity is high, heat transfer effect is not good, the bad phenomenon such as mode and the structure of induction are not durable, fragile, poor stability.
In order to overcome above-mentioned problem, we have developed a kind of self adaptation premixing combustion apparatus and hot water apparatus of thermocouple induction.
[summary of the invention]
Object of the present invention technical problem to be solved is self adaptation premixing combustion apparatus and the hot water apparatus that will provide a kind of thermocouple induction, perception the situation of burning can be worked as by thermocouple temperature measurement, the ratio of timely control combustion gas and air, combustion gas is burnt completely, have simultaneously durable in use, heat transfer rate is high, energy-conserving and environment-protective, safe and reliable advantage.
To achieve these goals, the technical solution used in the present invention: a kind of self adaptation premixing combustion apparatus of thermocouple induction, it comprises heat exchanger, burner, blower fan, gas ratio valve, thermocouple body, Gas Pipe, thermocouple testing circuit and control circuit; The fluid cavity that described heat exchanger is communicated by multiple tabular is stacked to be formed, and form the combustion space of tubbiness in described heat exchanger, burner is installed in described combustion space; The air outlet of described burner connecting fan, described gas ratio valve is connected in Gas Pipe, and described gas ratio valve, blower fan, control circuit, thermocouple testing circuit and described thermocouple body are electrically connected; Described thermocouple body one end to extend in described combustion space and is installed in an end housing of combustion space.
In one or more embodiment of the present invention, described thermocouple testing circuit comprises first order amplifying circuit and second level amplifying circuit; The input of described first order amplifying circuit connects described thermocouple body, and the output of second level amplifying circuit connects MCU control unit to provide the variable signal of temperature; Described first order amplifying circuit comprises operational amplifier OP1, the negative end of operational amplifier OP1 connects described thermocouple body by resistance R1, operational amplifier OP1 forward end is by resistance R4 reference voltage end, the output of operational amplifier OP1 connects filter capacitor C1, resistance R2 is provided with, to form negative-feedback between operational amplifier OP1 output and negative input;
The negative end contact resistance R6 of the operational amplifier OP2 of described second level amplifying circuit; Its forward end contact resistance R5, resistance R6 connect filter capacitor C2 to the output of output contact resistance R3, operational amplifier OP2.
In one or more embodiment of the present invention, described control circuit comprises MCU control unit, gas ratio valve regulation output circuit, gas ratio valve feedback circuit, the input of gas ratio valve regulation output circuit, the output of gas ratio valve feedback circuit electrically connect with MCU control unit respectively, and the output of gas ratio valve regulation output circuit, the input of gas ratio valve feedback circuit electrically connect with gas ratio valve respectively.
In one or more embodiment of the present invention, described control circuit also comprises fan speed regulation output control circuit, rotation speed of fan feedback circuit, the input of fan speed regulation output control circuit, the output of rotation speed of fan feedback circuit electrically connect with MCU control unit respectively, and the output of fan speed regulation output control circuit, the input of rotation speed of fan feedback circuit electrically connect with blower fan respectively.
In one or more embodiment of the present invention, the air inlet of described blower fan is provided with blast pipe, is provided with Venturi tube in blast pipe, and the gas outlet of Gas Pipe is communicated with Venturi tube.
In one or more embodiment of the present invention, described control circuit carries out temperature control, the temperature of flame and excess air coefficient α formation function proportionate relationship by the ratio controlling combustion gas and air; When α is greater than 1, ignition temperature reduces along with the increase of α, and superfluous absorption of air partial heat, adds the loss of smoke evacuation, serve the effect of cooling; When α is less than 1, when namely air capacity is not enough, because non-complete combustion of fuel heat loss increases, ignition temperature is reduced.
Under same design, the present invention also provides a kind of hot water apparatus, and it comprises housing, is placed in the self adaptation premixing combustion apparatus of the such scheme in housing and the thermocouple induction according to any one of preferred version thereof.
The present invention compares produced beneficial effect with background technology:
Useful employing technique scheme, it perception can work as the situation of burning by thermocouple temperature measurement, the ratio of timely control combustion gas and air, combustion gas is burnt completely, have simultaneously durable in use, heat transfer rate is high, energy-conserving and environment-protective, safe and reliable advantage, solve the bad phenomenon such as burning abnormal sound, harmful smoke discharge capacity are high, therefore it is a kind of at technical, economy and all superior product of practicality simultaneously.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the self adaptation premixing combustion apparatus of thermocouple induction in one embodiment of the present invention;
Fig. 2 is thermocouple testing circuit figure in the self adaptation premixing combustion apparatus of thermocouple induction in one embodiment of the present invention;
Fig. 3 is the systematic schematic diagram of the self adaptation premixing combustion apparatus of thermocouple induction in one embodiment of the present invention.
[detailed description of the invention]
Be described below in detail embodiments of the invention, described embodiment example is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.
In describing the invention, it should be noted that, for the noun of locality, if any term " " center ", " transverse direction ", " longitudinal direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", indicating positions such as " counterclockwise " and position relationship are based on orientation shown in the drawings or position relationship, only for the ease of describing the present invention and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with particular orientation structure and operation, restriction concrete protection domain of the present invention can not be interpreted as.
In addition, if any term " first ", " second " only for describing object, and instruction or hint relative importance can not be interpreted as or imply the quantity indicating technical characteristic.Thus, be limited with " first ", " second " feature can express or implicit comprise one or more this feature, in the present description, the implication of " at least " is one or more, unless otherwise expressly limited specifically.
In the present invention, except as otherwise clear stipulaties and restriction, should go to understand as broad sense if any term " assembling ", " being connected ", " connection " term, such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Also can be mechanical connection; Can be directly be connected, also can be connected by intermediary, can be that two element internals are connected.For those of ordinary skills, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In invention, unless otherwise prescribed and limit, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise fisrt feature and second feature and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " under " and " above " comprise fisrt feature directly over second feature and oblique upper, or be only represent the height of fisrt feature level height higher than second feature.Fisrt feature second feature " on ", " under " and " below " comprise fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is lower than second feature.
Below in conjunction with the accompanying drawing of description, by being further described the specific embodiment of the present invention, make technical scheme of the present invention and beneficial effect thereof clearly, clearly.Be exemplary below by embodiment is described with reference to the drawings, be intended to explain the present invention, and can not limitation of the present invention be interpreted as.
Please refer to shown in Fig. 1-3, its embodiment preferably provided for the present invention, it comprises heat exchanger 1, thermocouple body 2, burner 3, blower fan 4, control circuit 5, gas ratio valve 6, blast pipe 7, Venturi tube 8, thermocouple testing circuit 9 and Gas Pipe 10; The fluid cavity that described heat exchanger 1 is communicated by multiple tabular is stacked to be formed, and form the combustion space of tubbiness in described heat exchanger 1, burner fills 2 and is located in described combustion space; The air outlet of described burner 1 connecting fan 4, described gas ratio valve 6 is connected in Gas Pipe 10, and described gas ratio valve 6, blower fan 4, control circuit 5, thermocouple testing circuit 9 and described thermocouple body 2 are electrically connected; Described thermocouple body 2 one end to extend in described combustion space and is installed in an end housing of combustion space.The air inlet of described blower fan 4 is provided with blast pipe, is provided with Venturi tube 8 in blast pipe, and the gas outlet of Gas Pipe 10 is communicated with Venturi tube 8.
In this specific embodiment, thermocouple testing circuit 2 comprises first order amplifying circuit and second level amplifying circuit; The input of described first order amplifying circuit connects described thermocouple body, and the output of second level amplifying circuit connects MCU control unit to provide the variable signal of temperature; Described first order amplifying circuit comprises operational amplifier OP1, the negative end of operational amplifier OP1 connects described thermocouple body by resistance R1, operational amplifier OP1 forward end is by resistance R4 reference voltage end, the output of operational amplifier OP1 connects filter capacitor C1, resistance R2 is provided with, to form negative-feedback between operational amplifier OP1 output and negative input;
The negative end contact resistance R6 of the operational amplifier OP2 of described second level amplifying circuit; Its forward end contact resistance R5, resistance R6 connect filter capacitor C2 to the output of output contact resistance R3, operational amplifier OP2.
Described control circuit 5 comprises MCU control unit, gas ratio valve 6 regulation output circuit, gas ratio valve 6 feedback circuit, the input of gas ratio valve 6 regulation output circuit, the output of gas ratio valve 6 feedback circuit electrically connect with MCU control unit respectively, and the output of gas ratio valve 6 regulation output circuit, the input of gas ratio valve 6 feedback circuit electrically connect with gas ratio valve 6 respectively.Control circuit 9 carries out temperature control by the ratio controlling combustion gas and air, and the temperature of flame becomes certain functional relation with excess air coefficient α.When α is greater than 1, ignition temperature reduces along with the increase of α, and a part of heat of superfluous absorption of air, adds the loss of smoke evacuation, serve the effect of cooling.When α is less than 1, when namely air capacity is not enough, because non-complete combustion of fuel heat loss increases, ignition temperature is reduced.
Described control circuit 5 also comprises blower fan 4 speed governing output control circuit, blower fan 4 speed feedback circuit, the input of blower fan 4 speed governing output control circuit, the output of blower fan 4 speed feedback circuit electrically connect with MCU control unit respectively, and the output of blower fan 4 speed governing output control circuit, the input of blower fan 4 speed feedback circuit electrically connect with blower fan 4 respectively.
Comprehensive foregoing and in conjunction with institute's drawings attached, the present invention also provides a kind of hot water apparatus, it comprises housing, the self adaptation premixing combustion apparatus of thermocouple induction is established in housing, it perception can work as the situation of burning by thermocouple temperature measurement, the ratio of timely control combustion gas and air, combustion gas is burnt completely, have simultaneously durable in use, heat transfer rate is high, energy-conserving and environment-protective, safe and reliable advantage, solve the bad phenomenon such as burning abnormal sound, harmful smoke discharge capacity are high, therefore it is a kind of at technical, economy and all superior product of practicality simultaneously.
In the description of description, the description of reference term " a unification embodiment ", " preferably ", " example ", " concrete example " or " some examples " etc. means the specific features, structure, material or the feature that describe in conjunction with this embodiment or example, be contained at least one embodiment of the present invention or example, the schematic representation in this manual for above-mentioned term not necessarily refers to identical embodiment or example.And the specific features of description, structure, material or feature can combine in a suitable manner in any one or more embodiment or example.
By the description of above-mentioned structure and principle; person of ordinary skill in the field is to be understood that; the present invention is not limited to above-mentioned detailed description of the invention; basis of the present invention adopts the improvement of techniques well known and substitutes and all drop on protection scope of the present invention, should be limited it by each claim.
Claims (7)
1. a self adaptation premixing combustion apparatus for thermocouple induction, is characterized in that: it comprises heat exchanger, burner, blower fan, gas ratio valve, thermocouple body, Gas Pipe, thermocouple testing circuit and control circuit; The fluid cavity that described heat exchanger is communicated by multiple tabular is stacked to be formed, and form the combustion space of tubbiness in described heat exchanger, burner is installed in described combustion space; The air outlet of described burner connecting fan, described gas ratio valve is connected in Gas Pipe, and described gas ratio valve, blower fan, control circuit, thermocouple testing circuit and described thermocouple body are electrically connected; Described thermocouple body one end to extend in described combustion space and is installed in an end housing of combustion space.
2. the self adaptation premixing combustion apparatus of thermocouple induction according to claim 1, is characterized in that: described thermocouple testing circuit comprises first order amplifying circuit and second level amplifying circuit; The input of described first order amplifying circuit connects described thermocouple body, and the output of second level amplifying circuit connects MCU control unit to provide the variable signal of temperature; Described first order amplifying circuit comprises operational amplifier OP1, the negative end of operational amplifier OP1 connects described thermocouple body by resistance R1, operational amplifier OP1 forward end is by resistance R4 reference voltage end, the output of operational amplifier OP1 connects filter capacitor C1, resistance R2 is provided with, to form negative-feedback between operational amplifier OP1 output and negative input;
The negative end contact resistance R6 of the operational amplifier OP2 of described second level amplifying circuit; Its forward end contact resistance R5, resistance R6 connect filter capacitor C2 to the output of output contact resistance R3, operational amplifier OP2.
3. the self adaptation premixing combustion apparatus of thermocouple induction according to claim 1 and 2, it is characterized in that: described control circuit comprises MCU control unit, gas ratio valve regulation output circuit, gas ratio valve feedback circuit, the input of gas ratio valve regulation output circuit, the output of gas ratio valve feedback circuit electrically connect with MCU control unit respectively, and the output of gas ratio valve regulation output circuit, the input of gas ratio valve feedback circuit electrically connect with gas ratio valve respectively.
4. the self adaptation premixing combustion apparatus of thermocouple induction according to claim 3, it is characterized in that: described control circuit also comprises fan speed regulation output control circuit, rotation speed of fan feedback circuit, the input of fan speed regulation output control circuit, the output of rotation speed of fan feedback circuit electrically connect with MCU control unit respectively, and the output of fan speed regulation output control circuit, the input of rotation speed of fan feedback circuit electrically connect with blower fan respectively.
5. the self adaptation premixing combustion apparatus of the thermocouple induction according to any one in claim 1,2 and 4, it is characterized in that: the air inlet of described blower fan is provided with blast pipe, be provided with Venturi tube in blast pipe, the gas outlet of Gas Pipe is communicated with Venturi tube.
6. the self adaptation premixing combustion apparatus of thermocouple induction according to claim 5, is characterized in that: described control circuit carries out temperature control, the temperature of flame and excess air coefficient α formation function proportionate relationship by the ratio controlling combustion gas and air; When α is greater than 1, ignition temperature reduces along with the increase of α, and superfluous absorption of air partial heat, adds the loss of smoke evacuation, serve the effect of cooling; When α is less than 1, when namely air capacity is not enough, because non-complete combustion of fuel heat loss increases, ignition temperature is reduced.
7. a hot water apparatus, is characterized in that: it comprises housing, is placed in the self adaptation premixing combustion apparatus of the thermocouple induction described in any one of claim 1-6 in housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013860.8A CN105509299A (en) | 2016-01-06 | 2016-01-06 | Thermocouple-induced self-adaptation premixed combustion device and water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013860.8A CN105509299A (en) | 2016-01-06 | 2016-01-06 | Thermocouple-induced self-adaptation premixed combustion device and water heater |
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| Publication Number | Publication Date |
|---|---|
| CN105509299A true CN105509299A (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610013860.8A Pending CN105509299A (en) | 2016-01-06 | 2016-01-06 | Thermocouple-induced self-adaptation premixed combustion device and water heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028587A (en) * | 2018-07-27 | 2018-12-18 | 苏州帝洛普环境科技有限公司 | A kind of combustion gas condensing furnace premixes gas handling system entirely |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201152622Y (en) * | 2007-11-26 | 2008-11-19 | 广州迪森家用锅炉制造有限公司 | All-premixing burning gas water heating stove |
| JP2014219121A (en) * | 2013-05-01 | 2014-11-20 | 三浦工業株式会社 | Boiler |
| CN104296392A (en) * | 2014-10-17 | 2015-01-21 | 广东万和新电气股份有限公司 | Gas water heating device capable of realizing self-adaptive fully-premixed combustion |
| CN104613633A (en) * | 2015-01-27 | 2015-05-13 | 胡桂林 | Heat exchanger |
| US20150308714A1 (en) * | 2014-04-26 | 2015-10-29 | Itzhak M. Itzhaky | Method and Apparatus for Controlling and Regulating Flow of Fuel Oil in Heating Systems |
| CN205481688U (en) * | 2016-01-06 | 2016-08-17 | 胡桂林 | Burner and hot water system are mixed in advance to self -adaptation of thermocouple response |
-
2016
- 2016-01-06 CN CN201610013860.8A patent/CN105509299A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201152622Y (en) * | 2007-11-26 | 2008-11-19 | 广州迪森家用锅炉制造有限公司 | All-premixing burning gas water heating stove |
| JP2014219121A (en) * | 2013-05-01 | 2014-11-20 | 三浦工業株式会社 | Boiler |
| US20150308714A1 (en) * | 2014-04-26 | 2015-10-29 | Itzhak M. Itzhaky | Method and Apparatus for Controlling and Regulating Flow of Fuel Oil in Heating Systems |
| CN104296392A (en) * | 2014-10-17 | 2015-01-21 | 广东万和新电气股份有限公司 | Gas water heating device capable of realizing self-adaptive fully-premixed combustion |
| CN104613633A (en) * | 2015-01-27 | 2015-05-13 | 胡桂林 | Heat exchanger |
| CN205481688U (en) * | 2016-01-06 | 2016-08-17 | 胡桂林 | Burner and hot water system are mixed in advance to self -adaptation of thermocouple response |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028587A (en) * | 2018-07-27 | 2018-12-18 | 苏州帝洛普环境科技有限公司 | A kind of combustion gas condensing furnace premixes gas handling system entirely |
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