CN103994581B - Fully-premixed combustion water heater with gas inlet device - Google Patents
Fully-premixed combustion water heater with gas inlet device Download PDFInfo
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- CN103994581B CN103994581B CN201410180547.4A CN201410180547A CN103994581B CN 103994581 B CN103994581 B CN 103994581B CN 201410180547 A CN201410180547 A CN 201410180547A CN 103994581 B CN103994581 B CN 103994581B
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Abstract
A fully-premixed combustion water heater with a gas inlet device comprises a combustor assembly, a fuel gas valve, a fan and a controller. The fuel gas valve and the fan are electrically connected with the controller, and the fully-premixed combustion water heater is mainly characterized in that the gas inlet device is arranged in an air inlet of the fan, a gas circuit of the fuel gas valve, a gas circuit of the gas inlet device, a gas circuit of the fan and a gas circuit of the combustor assembly are communicated, at least one air inlet is formed in the gas inlet device, an electric control valve is arranged on the at least one air inlet, the electric control valve is electrically connected with the controller, and the controller adjusts the air inlet quantity of the air inlet by controlling the electric control valve. The fully-premixed combustion water heater is suitable for a gas water heater or a fuel gas heating water heater, the load adjusting ratio of the fully-premixed combustion water heater can be increased, and the adjusting flexibility and use comfort of the water heater can be improved.
Description
Technical field
The invention belongs to gas heater or gas-heating water heater field, particularly relate to one kind and there is air inlet dress
The full premix combustion water heater put.
Background technology
The existing gas heater overwhelming majority is all by the way of atmospheric burning type, and it is many that it has an excess air, heat
The low defect of efficiency；Excess air is little, co and nox content is low, hot because having for the full premix combustion that gas-heating water heater is commonly used
The advantages of efficiency high and be widely used, gas heater also begins to the combustion system using full premix.Due to being to be referred from combustion
Gas water heater for heating, there is the not high defect of load regulation rate in gas heater.
Specifically, the gas heater of full premix combustion enters burner after combustion gas is mixed with air and is burnt,
Because taking sectional combustion, therefore its gas mixing ratio is stable, and load regulation rate depends on blower fan and combustion gas valve regulation
Scope, also because by technical limitations, the minimum speed of blower fan can not be too low, therefore load regulation rate is generally 4:1, and this is for combustion gas
It is enough for water heater for heating；But the improper direct shower for gas heater.For example: general water outlet of water heater amount
8 liters/min, 30 DEG C of summer cold water temperature, shower water temperature is more comfortable at 38 DEG C, and according to Load Regulation 4:1,10 liters of water heaters are firm
Good satisfaction requires, if 16 liters of outlet water temperature of water heater reach 43 DEG C, can feel to scald very much to be difficult with.For overcoming full premix combustion
The not high defect of water heater load regulation rate, spy is developed to the full premix combustion water heater with air intake installation.
Content of the invention
The technical problem to be solved is to provide for a kind of full premix combustion water heater with air intake installation, its
Full premix combustion water heater Load Regulation ratio can be increased, improve the motility of water heater regulation and the comfortableness of use.
The present invention solves its technical problem and the technical scheme is that a kind of full premix combustion hot water with air intake installation
Device, including burner assembly, gas valve, blower fan, controller, gas valve, blower fan are electrically connected with described controller, the air intake of blower fan
Mouth is provided with air intake installation, and gas valve, air intake installation, blower fan, burner assembly gas circuit communicate, and described air intake installation is further opened with
At least one air inlet, is provided with electrically-controlled valve at least one air inlet, electrically-controlled valve is electrically connected with the controller, and controls
Device passes through to control the air inflow of automatically controlled valve regulation air inlet.
According to an example of the present invention, described air intake installation is a hollow box or a hollow tube.
According to an example of the present invention, described air intake installation is made up of lid and cover plate, is provided with spiral type in lid
The plenum duct of shape, plenum duct arises from air inlet, terminates in the connector connecting blower fan on cover plate.Using air-flow around
OK, to eliminate the noise of uttering long and high-pitched sounds of air-flow in combustion process, and mix with the uniform of combustion gas beneficial to air.
According to an example of the present invention, between described blower fan and air intake installation, it is additionally provided with blender.To add further
Strong air is mixed with the uniform of combustion gas, improves the thermal efficiency.
According to an example of the present invention, described air inlet includes the first air inlet and the second air inlet
Mouthful.
According to an example of the present invention, the sectional area of the first air inlet is more than the section of the second air inlet
Long-pending, electrically-controlled valve is arranged at the first air inlet.Preferably to improve load regulation rate.
According to an example of the present invention, described electrically-controlled valve is regulating valve or switch valve.
According to an example of the present invention, be provided with described air inlet setting 1, and this air inlet is automatically controlled
Valve is regulating valve.
According to an example of the present invention, described gas valve is electric-controlled gas proportioning valve.
According to an example of the present invention, described gas valve is gas control gas ratio valve, gas control gas ratio valve and air inlet
It is provided with airway, airway one end connects gas control gas ratio valve, the other end is arranged near air inlet between device, and even
Logical air intake installation.The feedback to gas control gas ratio valve for the airway can be passed through, adjust the gas pushing quantity of gas control gas ratio valve.
The present invention produced beneficial effect compared with background technology: because the present invention is arranged between gas valve and blower fan
At least one air inlet is further opened with air intake installation, and described air intake installation, arranges at least one air inlet
There is electrically-controlled valve, electrically-controlled valve is electrically connected with the controller, controller passes through to control the air inflow of automatically controlled valve regulation air inlet.Therefore this
Invention, by controlling air inlet amount, increases full premix combustion water heater Load Regulation ratio, it is flexible that raising water heater is adjusted
Property and the comfortableness of use.
Brief description:
Fig. 1 is the structural representation of the present invention, and wherein dotted portion represents electrical connection；
Fig. 2 is burner assembly 01, blower fan 03, the side structure schematic view of air intake installation 05 in Fig. 1；
Fig. 3 is the exploded isometric structure chart of air intake installation 05 in Fig. 1 or Fig. 2；
Fig. 4 is the other direction three-dimensional structure diagram of lid 51 in air intake installation 05 in Fig. 3；
Fig. 5 is the structural representation of another embodiment of the present invention；
Fig. 6 be the present invention in controller 04 to gas valve 02, blower fan 03, electrically-controlled valve 06 control planning figure.
Specific embodiment: embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings,
Wherein each in figure identical label represents identical part.Embodiment below with reference to Description of Drawings is exemplary, only
For explaining the present invention, and it is not understood to limitation of the present invention.
Embodiment one: as shown in Figure 1 and Figure 2, the full premix combustion water heater with air intake installation in the present embodiment, bag
Include burner assembly 01, gas valve 02, blower fan 03, controller 04, air intake installation 05, electrically-controlled valve 06, blender 08.
Gas valve 02, blower fan 03, electrically-controlled valve 06 are electrically connected with described controller 04, and described air intake installation 05 is arranged on wind
The air inlet of machine 03, gas valve 02, air intake installation 05, blender 08, blower fan 03, burner assembly 01 gas circuit communicate.Described combustion
Air valve 02 is electric-controlled gas proportioning valve.
At least one air inlet 54 is further opened with air intake installation 05, and arranges at least one air inlet 54
There is electrically-controlled valve 06.In the present embodiment, air intake installation 05 offers 2 air inlets 54, i.e. the first air inlet 541 He
Second air inlet 542, and the sectional area of the first air inlet 541 is more than the sectional area of the second air inlet 542,
That is the air inflow in the first air inlet 541 unit interval is more than entering in the second air inlet 542 unit interval
Tolerance, so can preferably improve load regulation rate.Described electrically-controlled valve 06 is arranged at the first air inlet 541, wherein electricity
Control valve 06 is regulating valve or switch valve.
As shown in Figure 3, Figure 4, air intake installation 05 is a hollow box or a hollow tube, is one in the present embodiment
Hollow box, and described hollow box is made up of lid 51 and cover plate 52, is provided with spiral-shaped plenum duct 53 in lid 51,
In other words, air-flow in lid 51 around flowing, air-flow in lid 51 internal ring more than flowing one circle or a circle, when supplying gas
Passage 53 be provided with two circles above when, air-flow around flowing can be one-way flow or two-way flow.Guiding air ring streams
Kinetic energy effectively eliminates and produces air-flow in combustion process and utter long and high-pitched sounds noise, and air contribute to the equal of air and combustion gas around flowing
Even mixing.For the unidirectional plenum duct 53 of the circle that detours in the present embodiment, in figure dotted portion represents air-flow direction, supplies gas
Passage 53 arises from air inlet 54, terminates in the connector 55 connecting blower fan 03 on cover plate 52, and air inlet 54 is mutually adjacent
First air inlet 541 of nearly setting and the second air inlet 542.
As shown in fig. 6, controller 04 passes through to control gas valve 02 to control gas inlet amount, by controlling turning of blower fan 03
Speed is to control air flow amount, to pass through to control electrically-controlled valve 06 to control air inlet amount.
During work, controller 04 controls gas valve 02, blower fan 03, electrically-controlled valve 06 to work, gas valve 02 by combustion gas send into into
Device of air 05, blower fan 03 starts, and user's foundation needs to control electrically-controlled valve 06 to control air inlet amount.Effect in blower fan 03
Under, air is inhaled into air intake installation 05 from the first air inlet 541 and the second air inlet 542, and flows through spiral-shaped
Plenum duct 53, so can effectively eliminate the noise of uttering long and high-pitched sounds of air flow, and mix with the uniform of combustion gas beneficial to air.Empty
Gas enters blender 08, blower fan 03 after mixing in air intake installation 05 with combustion gas, finally sends into burner assembly 01 and starts to burn.
In the present embodiment, need to lay down a definition further, enter when controller 04 controls electrically-controlled valve 06 to open the first air
During QI KOU 541, the first air inlet 541 and the second air inlet 542 enter air simultaneously, and the rotating speed of blower fan 03 reaches maximum
When be maximum heating load, now thermic load is 30kw, and the rotating speed of blower fan 03 reaches thermic load during minimum and be taking 30kw as a example
7.5kw, load regulation rate is 30kw:7.5kw is 4:1；Control electrically-controlled valve 06 to close the first air now by controller 04 to enter
During QI KOU 541, control gas valve 02 to adjust out suitable throughput simultaneously and ensure full premix combustion, during the minimum speed of blower fan 03
Thermic load is changed into 5kw, and during the maximum (top) speed of blower fan 03, thermic load is changed into 20kw, and load regulation rate is also 20kw:5kw is 4:1, but
Total load regulation rate is that 30kw:5kw is changed into 6:1, so increases full premix combustion water heater Load Regulation ratio, thus
Improve the comfortableness of water heater use.
Embodiment two, as shown in figure 5, the present embodiment part unlike the embodiments above is: gas valve in the present embodiment
02 is gas control gas ratio valve, is provided with airway 07 between gas control gas ratio valve and air intake installation 05, and airway 07 one end is even
Ventilation control gas ratio valve, the other end is arranged near air inlet 54, and connects air intake installation 05.
In the present embodiment, when controller 04 controls electrically-controlled valve 06 to open the first air inlet 541, the first air inlet
Mouth 541 and the second air inlet 542 enter air, by the feedback to gas control gas ratio valve for the airway 07, blower fan 03 simultaneously
Rotating speed to reach during maximum be maximum heating load, now thermic load is 30kw, and the rotating speed of blower fan 03 reaches minimum taking 30kw as a example
When thermic load be 7.5kw, load regulation rate is 30kw:7.5kw is 4:1；Electrically-controlled valve 06 is controlled to close now by controller 04
The passage of the first air inlet 541, passes through the feedback to gas control gas ratio valve for the airway 07 simultaneously, and the minimum of blower fan 03 turns
When fast, thermic load is changed into 5kw, and during the maximum (top) speed of blower fan 03, thermic load is changed into 20kw, and load regulation rate is also 20kw:5kw is 4:
1, but total load regulation rate is 30kw:5kw is changed into 6:1, so increases full premix combustion water heater Load Regulation ratio, from
And improve the comfortableness of water heater use.
Above-described embodiment is exemplary it is impossible to be interpreted as limitation of the present invention, and those of ordinary skill in the art exists
Above-described embodiment can be changed in the scope of the present invention, change, replacing and modification.Described various change, change, replace
Change all within the scope of the present invention with modification.
Claims (10)
1. a kind of full premix combustion water heater with air intake installation, including burner assembly (01), gas valve (02), blower fan
(03), controller (04), gas valve (02), blower fan (03) electrically connect with described controller (04) it is characterised in that: blower fan (03)
Air inlet be provided with air intake installation (05), gas valve (02) is connected to air intake installation (05), gas valve (02), air intake installation
(05), blower fan (03), burner assembly (01) gas circuit communicate, and described air intake installation (05) is further opened with least one air and enters
QI KOU (54), at least one air inlet (54) place is provided with electrically-controlled valve (06), and electrically-controlled valve (06) is electrically connected with controller (04)
Connect, controller (04) passes through the air inflow controlling electrically-controlled valve (06) to adjust air inlet (54).
2. the full premix combustion water heater with air intake installation according to claim 1 is it is characterised in that described air inlet
Device (05) is a hollow box or a hollow tube.
3. the full premix combustion water heater with air intake installation according to claim 2 is it is characterised in that described air inlet
Device (05) is made up of lid (51) and cover plate (52), is provided with spiral-shaped plenum duct (53), supplies gas logical in lid (51)
Road (53) arises from air inlet (54), terminates in the upper connector (55) connecting blower fan (03) of cover plate (52).
4. the full premix combustion water heater with air intake installation according to claim 3 is it is characterised in that described blower fan
(03) it is additionally provided with blender (08) and air intake installation (05) between.
5. the full premix combustion water heater with air intake installation according to any one of Claims 1 to 4 it is characterised in that
Described air inlet (54) includes the first air inlet (541) and the second air inlet (542).
6. the full premix combustion water heater with air intake installation according to claim 5 is it is characterised in that the first air enters
The sectional area of QI KOU (541) is more than the sectional area of the second air inlet (542), and electrically-controlled valve (06) is arranged on the first air inlet
Mouth (541) place.
7. the full premix combustion water heater with air intake installation according to claim 6 is it is characterised in that described is automatically controlled
Valve (06) is regulating valve or switch valve.
8. the full premix combustion water heater with air intake installation according to any one of Claims 1 to 4 it is characterised in that
Described air inlet (54) arranges 1, and the electrically-controlled valve (06) that this air inlet (54) place is provided with is regulating valve.
9. the full premix combustion water heater with air intake installation according to any one of Claims 1 to 4 it is characterised in that
Described gas valve (02) is electric-controlled gas proportioning valve.
10. the full premix combustion water heater with air intake installation according to any one of Claims 1 to 4, its feature exists
It is gas control gas ratio valve in described gas valve (02), between gas control gas ratio valve and air intake installation (05), be provided with airway
(07), airway (07) one end connection gas control gas ratio valve, the other end is arranged near air inlet (54), and connects air inlet
Device (05).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410180547.4A CN103994581B (en) | 2014-05-04 | 2014-05-04 | Fully-premixed combustion water heater with gas inlet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410180547.4A CN103994581B (en) | 2014-05-04 | 2014-05-04 | Fully-premixed combustion water heater with gas inlet device |
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| Publication Number | Publication Date |
|---|---|
| CN103994581A CN103994581A (en) | 2014-08-20 |
| CN103994581B true CN103994581B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410180547.4A Active CN103994581B (en) | 2014-05-04 | 2014-05-04 | Fully-premixed combustion water heater with gas inlet device |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994581B (en) * | 2014-05-04 | 2017-01-18 | 广东万和新电气股份有限公司 | Fully-premixed combustion water heater with gas inlet device |
| CN105571131A (en) * | 2014-10-13 | 2016-05-11 | 银川艾尼工业科技开发有限公司 | Condensation-type gas heating hot water boiler electronically controlling gas mixture ratio |
| CN109682071B (en) * | 2019-01-23 | 2021-07-16 | 浙江双菱戴纳斯帝电气有限公司 | Condensing water collecting device and wall-mounted furnace with same |
| CN109838808B (en) * | 2019-03-26 | 2024-06-11 | 广东万和新电气股份有限公司 | Heat load adjusting device and full-premix gas water heater |
| CN112128985A (en) * | 2019-06-25 | 2020-12-25 | 芜湖美的厨卫电器制造有限公司 | Gas water heater's gas adjusting device and gas water heater that has it |
| CN110594855B (en) * | 2019-07-16 | 2021-07-16 | 华帝股份有限公司 | Control method of gas heating stove with variable bathing heat load and gas heating stove |
| CN111947296B (en) * | 2020-07-21 | 2022-04-05 | 华帝股份有限公司 | Control method of full-premix gas water heater |
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| CN103994581A (en) * | 2014-05-04 | 2014-08-20 | 广东万和新电气股份有限公司 | Fully-premixed combustion water heater with gas inlet device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US8919337B2 (en) * | 2012-02-17 | 2014-12-30 | Honeywell International Inc. | Furnace premix burner |
| KR200469253Y1 (en) * | 2012-04-30 | 2013-10-01 | 대성산업 주식회사 | Premix Combustion Device of Gas Burner |
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| CN102313359A (en) * | 2010-07-01 | 2012-01-11 | 广东万和新电气股份有限公司 | Fuel gas hot water supplying device capable of adjusting hot water producing capability |
| CN202024333U (en) * | 2011-04-19 | 2011-11-02 | 广东万家乐燃气具有限公司 | Premixing device for fully premixing combustion |
| CN203550182U (en) * | 2013-11-04 | 2014-04-16 | 广东万和新电气股份有限公司 | Full premixed combustion gas heating water heater |
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| CN103994581A (en) | 2014-08-20 |
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