CN109764529A - Gas and hot water equipment - Google Patents
Gas and hot water equipment Download PDFInfo
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- CN109764529A CN109764529A CN201811500015.9A CN201811500015A CN109764529A CN 109764529 A CN109764529 A CN 109764529A CN 201811500015 A CN201811500015 A CN 201811500015A CN 109764529 A CN109764529 A CN 109764529A
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- gas
- burner
- hot water
- fire row
- water equipment
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Abstract
The present invention provides a kind of gas and hot water equipment, it includes shell and receiving burner inside the shell, the air valve for controlling supplied burner combustion gas, setting square igniter and controller on the burner, and wherein controller and air valve and igniter are electrically connected.Controller is used for the control air valve after the specified time interval of triggering ignition device and opens to supply combustion gas.In time interval after ignitor igniting, before air valve unlatching, the combustion gas completely burned that burner fire screening inner product is gathered can be exhausted, then after air valve opening, the combustion gas newly supplied can be supplemented for burning away, in this way, remaining combustion gas can be effectively consumed, it is avoided to be superimposed and cause the generation of deflagration phenomenon with the combustion gas newly supplemented.
Description
Technical field
The invention belongs to domestic gas apparatus fields, and in particular to a kind of gas and hot water equipment for improving Combustion System.
Background technique
Gas and hot water equipment generally includes gas heater and gas fired-boiler.It is interior usually to set by taking gas heater as an example
It is equipped with gas supply system, burner, heat exchanger and pipe-line system.Gas supply system burns for supplied burner
Required combustion gas.Burner is commonly equipped with igniter, for lighting combustion gas and air mixture to generate heat.For having
For the combustion gas of a little types, the density such as liquefied gas, density ratio air is big, thus when encountering flame-out in combustion, combustion
Gas is easily accumulated in inside burner.In particular by the burner of several fire row pieces composition, arrangement is close between fire row piece, does not have
There is gap, so that combustion gas tends to accumulate inside fire row piece.If the flame-out starting burning once more in midway, the combustion gas of supplement and residual
After the combustion gas stayed is superimposed and the ratio of air will be higher than normal combustion needed for combustion gas and AIR Proportional, such state
Under, hot combustion gas is easy to happen detonation, and the energy that detonation generates can be blown into the combustion gas of subsequent supplement inside fire row piece, thus
Form tempering.
In view of this, it is necessary to the Combustion System of existing burner be improved, to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of gas and hot water equipment, quick-fried when by improving Combustion System to avoid burning
The generation for shape of lighting the passion.
For achieving the above object, the present invention provides a kind of gas and hot water equipment comprising shell and is housed in shell
Square on the burner igniter and controller is arranged in the air valve of interior burner, control supplied burner combustion gas,
Middle controller and air valve and igniter are electrically connected.Controller is used for after the specified time interval of triggering ignition device
Air valve is controlled to open to supply combustion gas.
As a further improvement of the present invention, specified time interval is in 1~10 second interval range.
As a further improvement of the present invention, specified time interval is in 2~4 seconds interval ranges.
As a further improvement of the present invention, the density of the density ratio air of combustion gas is big.
As a further improvement of the present invention, combustion gas is liquefied gas.
As a further improvement of the present invention, burner includes several fire row pieces being arranged side by side along longitudinally, each
Fire row piece extends along the width direction perpendicular to longitudinally；It is provided with airflow channel in each fire row piece, and airflow channel exists
Gas outlet is provided at the top of burner.
As a further improvement of the present invention, igniter includes the ignitor being set to above burner；In width
On direction, the end of ignitor is arrived in the distance for projecting to neighbouring fire row piece end wall of burner top with gas outlet center
Ratio between the distance of fire row piece end wall is in 0.5~0.8 interval range.
As a further improvement of the present invention, airflow channel includes being sequentially distributed from the bottom to top along the vertical direction of fire row piece
Air inlet section, gas mixing section and air outlet section, wherein gas outlet is to be formed in the top of air outlet section, and air outlet section is substantially in V
Shape.
As a further improvement of the present invention, there are two airflow channels, ignitor to be located at and face for setting in each fire row piece
Above the gas outlet of the airflow channel of nearly fire row piece end wall.
As a further improvement of the present invention, burner further includes the water pipe across several fire row pieces.
Compared with prior art, the beneficial effects of the present invention are: ignitor igniting after, air valve open before time between
Every interior, the combustion gas completely burned that burner fire screening inner product is gathered can be exhausted, then after air valve opening, the combustion newly supplied
Gas can be supplemented for burning away, and in this way, can effectively consume remaining combustion gas, it is avoided to fold with the combustion gas newly supplemented
Add and cause the generation of deflagration phenomenon.In addition, the end of ignitor projects to neighbour in burner top on width direction
The distance of close fire row piece end wall at a distance from corresponding gas outlet center to above-mentioned fire row piece end wall between ratio be in 0.5
In~0.8 interval range, by this set, ignition location is set to deviate the highest region of gas concentration quick-fried to avoid generating
Combustion, at the same again will not center apart from gas outlet it is too far, with the igniting that assures success.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, be described below in it is for the present invention
Attached drawing is only some embodiments of the present invention, for those of ordinary skill in the art, what is do not made the creative labor
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic cross-sectional view of gas and hot water equipment of the invention side view in a specific embodiment, part of
Panel and component are removed to clearly show that the structure inside combustion system；
The burner and the perspective cross-sectional schematic diagram after heat exchanger assembling that Fig. 2 is gas and hot water equipment shown in FIG. 1；
Fig. 3 is gas and hot water equipment of the invention in ignition process, and the boot sequence of each ignition associated components shows
It is intended to.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to various embodiments shown in the accompanying drawings.But these embodiments are not
The limitation present invention, structure that those skilled in the art are made according to these embodiments, method or change functionally
It changes and is included within the scope of protection of the present invention.
Gas and hot water equipment is such as natural gas, town gas, liquefied gas, biogas using fuel gas as fuel, passes through combustion
Burn fuel gas and provide heat to meet the life requirement of user, for example, provide domestic hot-water gas heater or can be same
When provide domestic hot-water and the gas fired-boiler of heating demands etc..Next to gas and hot water of the invention by taking gas heater as an example
Equipment is illustrated.
As shown in Figure 1, gas heater 100 includes shell 40, receiving is mixed for combustion gas and air in the shell
The burner 10 of object, heat exchanger 50, is formed in burner and heat exchanger at the igniter 20 that setting is associated with burner 10
Between combustion chamber 40 and fume extractor etc..Gas supply system is equipped in the lower part of burner 10 comprising for controlling
The air valve 70 of combustion gas on-off and supply and the gas distribution device 71 being connected to air valve.If gas distribution device 71 is equipped with
Dry nozzle 72, the air inlet of several fire row pieces 11 (being described in detail later) corresponding to burner.
Referring to shown in Fig. 2, burner 10 includes several fire row pieces 11 being arranged side by side along longitudinally for cooperation.Each fire row
Airflow channel is arranged inside along the width direction extension perpendicular to longitudinally in piece 11.In present embodiment, each fire row piece
There are two airflow channels 111,112 for setting in 11, and by taking the airflow channel 111 on the right side of drawing as an example, each airflow channel 111 includes
Air inlet section, gas mixing section and the air outlet section being sequentially distributed from the bottom to top along the vertical direction of fire row piece.Wherein, air-flow is logical
The air outlet section in road is substantially v-shaped, and the air inlet section of airflow channel is substantially inverted V shaped.By this set, make 111 structure of airflow channel
It is logical from air-flow together by air valve 70, the combustion gas of the nozzle 71 of gas distribution device 71 and primary air at a Venturi tube
The air inlet of the air inlet section in road enters, and is then sufficiently mixed in gas mixing section, the mixing of subsequent mixed combustion gas and air
Object is spouting through air outlet section.Gas outlet 1111 is formed at the top of air outlet section.The top of fire row piece 11 is equipped with the burning of metal
Layer 113 is provided with several burning fire holes on burning zone.Burning zone setting is closed in the gas outlet 1111 of airflow channel 111.Two
Form common outlet region between the gas outlet and burning zone 113 of airflow channel 111,112, the combustion gas through the outlet region with
Air mixture can be ignited and burnt.In the present embodiment, each fire row piece 11 at the top of it and is closing on width side
Upward both ends are additionally provided with a pair of of through-hole 115, so that a water pipe 12 passes through.Water pipe 12 is close to the one of burner width direction
End sequentially passes through each fire row piece 11, and sequentially passes through each fire row piece in the other end after fold-back, thus, the flowing water in water pipe 12
Facilitate cooling combustion flame, and then reduce the discharge of nitrogen oxides, to reduce the pollution to environment.
Igniter 20 is mounted on the shell of burner 10 comprising ignitor 21 and flame detection electrode 22,
Positioned at the top of burner and close to the burning zone 113 of fire row piece, combustion gas and the mixing of air are lighted by electronic pulse ignition
Object.On width direction, the distance for projecting to neighbouring fire row piece end wall 114 of the end of ignitor 21 in burner top
D1 is in 0.5~0.8 area with corresponding 1111 center of gas outlet to the ratio between above-mentioned 114 distance d2 of fire row piece end wall
Between in range.The purpose being arranged in this way is to make the center of the gas outlet 1111 of end deviation airflow channel of ignitor 21
Domain.Due to the gas concentration highest at 1111 center of airflow channel gas outlet, so ignitor electrode is also easy to produce detonation here, thus
By this set, ignition location is made to deviate the highest region of gas concentration to avoid detonation is generated, while will not be apart from outlet
The center of mouth 1111 is too far, with the igniting that assures success.After igniting, flame detection electrode 22 is judged whether by ionic flame detection
It lights a fire successfully.
In present embodiment, fin tube type heat exchanger is can be used in heat exchanger 50, i.e. heat exchanger includes multiple wings
Piece 51, a heat-absorbing water pipe 60 (cooperation is referring to shown in Fig. 2) pass through these fins round, and both ends are respectively with inlet pipeline and out
Water lines connection.Shell 31 outside heat exchanger 50 is extended further downward with the shape between heat exchanger 50 and burner 10
At combustion chamber 30.Air-gas mixture burns in combustion chamber 30, and the heat of generation is inhaled by the fin 51 of heat exchanger 50
It receives, and further passes to the water flowed through in heat-absorbing water pipe 60, the water after heating passes to domestic water by outlet pipeline
Water pipe, thus provided for user drink, the domestic hot-waters such as bathing.
In present embodiment, the shell of heat exchanger 50 and combustion chamber 30 is integrally formed, and in other embodiments, heat is handed over
Parallel operation 50 and the shell of combustion chamber 30 can also be respectively set.The shell 31 of heat exchanger 50 extends downwardly, and forms combustion chamber 30
Side wall, and further extend downwardly and at least cover in the surrounding at 10 top of burner, and the side wall 31 of combustion chamber and burner 10
There is interval width w on width direction.In present embodiment, which is, in the side wall of width direction upper combustion chamber
31 with the distance between the end wall 114 of neighbouring fire row piece.Due to being tightly combined between each fire row piece of burner, almost without
Gap, so being fired after the combustion gas and primary air mixing that the airflow channel 111 of fire row piece, 112 bottoms enter in burner top
It burns, auxiliary air can not be obtained from the gap between fire row piece, to also be unable to fully burn, therefore, even if using flame
The discharge of nitrogen oxides can not be also greatly reduced in cooling burner.So by being set between sidewall of combustion chamber and burner
Gap is emptied, the air quantity of auxiliary air can be increased, so that it is guaranteed that full combustion.In addition, the interval is wide to ensure to reach steady flame effect
The size of degree w is preferably arranged in the interval range in 10~20mm, and in present embodiment, the size of w is 13mm.To improve heat exchange
Efficiency avoids unnecessary thermal loss, and the space of combustion chamber should not be too large, correspondingly, the height h of combustion chamber, i.e. this implementation
Excessive, the ruler of h should not be arranged in the distance between the bottom of several fins 51 and 10 top of burner in the vertical direction in mode
In the very little interval range for being preferably in 90~140mm, it is preferable that in the interval range in 90~120mm, in present embodiment, h
Size be 100mm.
As shown in Figure 1, gas and hot water equipment 100 further includes a controller 80, it is main automatically controlled in the controller and equipment
Device electric connection such as controls the igniting of the igniting unit 21 of burner, the unlatching of air valve 70 with work for controlling devices
With close and aperture etc..Controller 80 is also with flow sensor electric connection (not shown), and the flow sensor is suitable for peace
For monitoring water flowing situation on inlet pipeline.Controller 80 can be by several electronic components according to certain wiring side
The logic control circuit that formula is formed by connecting；It is also possible to be stored with the microcontroller (MCU) of program instruction；Either have proprietary
The integrated chip of purposes, such as field programmable gate array (Field-Programmable Gate Array, FPGA) etc..
Referring to figure 3., when there is water flow to pass through inlet pipeline, controller 80 detects that water flow is believed by flow sensor
Number, meanwhile, controller triggers ignitor 21 and lights a fire, and then, after specified time interval T, controller 80 is sent to air valve
Signal is controlled to open air valve, to supply combustion gas to burner 10.If the combustion gas used is that liquefied gas isodensity is higher than sky
The imflammable gas of gas, can within the time interval T after the igniting of ignitor 21, before air valve unlatching then by this control
The combustion gas completely burned that burner fire screening inner product is gathered is exhausted, then after air valve opening, the combustion gas newly supplied can be mended
It fills for burning away.Time interval T depends on size and fire row piece quantity of burner etc., can be at 1~10 second area
Between in range, it is preferable that can be in 2~4 seconds interval ranges, be in the present embodiment 3 seconds.In addition, the equal burnings control
Mode processed is similarly applied to the burner using the combustion gas smaller than atmospheric density, because, when burning midway is stopped working and is restarted,
It is possible to accumulate a certain number of combustion gas not run out of in the fire row piece of burner, in addition, this from stopping working to restarting
In the section time, the combustion gas gathered also has little time to dissipate naturally, so can effectively consume remaining combustion in this way
Gas avoids it from being superimposed and cause the generation of deflagration phenomenon with the combustion gas newly supplemented.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of gas and hot water equipment (100) comprising shell (40) and receiving burner (10) inside the shell, control supply
Square on the burner igniter (20) and controller (80), the controller is arranged in the air valve (70) of burner combustion gas
It is electrically connected with air valve and igniter；It is characterized by: the controller be used for trigger ignition device it is specific when
Between interval (T) afterwards control air valve open to supply combustion gas.
2. gas and hot water equipment according to claim 1, it is characterised in that: the specified time interval is in 1~10 second
Interval range in.
3. gas and hot water equipment according to claim 1 or 2, it is characterised in that: the specified time interval is in 2~4
In the interval range of second.
4. gas and hot water equipment according to claim 1, it is characterised in that: the density of the density ratio air of the combustion gas
Greatly.
5. gas and hot water equipment according to claim 1 or 4, it is characterised in that: the combustion gas is liquefied gas.
6. gas and hot water equipment according to claim 1, it is characterised in that: the burner include along longitudinally side by side
Several fire row pieces (11) of arrangement, each fire row piece extend along the width direction perpendicular to longitudinally；It is set in each fire row piece
It is equipped with airflow channel (111,112), and the airflow channel (111) is provided with gas outlet at the top close to burner
(1111)。
7. gas and hot water equipment according to claim 6, it is characterised in that: the igniter includes being set to burner
The ignitor (21) of top；On width direction, the end of the ignitor (21) projects to neighbour in burner top
The distance (d1) of close fire row piece end wall (114) is at a distance from gas outlet (1111) center to the fire row piece end wall (114)
(d2) ratio between is in 0.5~0.8 interval range.
8. gas and hot water equipment according to claim 6 or 7, it is characterised in that: the airflow channel (111,112) includes
Air inlet section, gas mixing section and the air outlet section being sequentially distributed from the bottom to top along the vertical direction of fire row piece, the gas outlet is
It is formed in the top of air outlet section, and the air outlet section is substantially v-shaped.
9. gas and hot water equipment according to claim 7, it is characterised in that: there are two air-flows to lead to for setting in each fire row piece
Road (111,112), the ignitor are located on the gas outlet (1111) for the airflow channel (111) for closing on the fire row piece end wall
Side.
10. gas and hot water equipment according to claim 1, it is characterised in that: if the burner further includes across described
The water pipe (12) of dry fire row piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811500015.9A CN109764529B (en) | 2018-11-30 | 2018-11-30 | Gas water heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811500015.9A CN109764529B (en) | 2018-11-30 | 2018-11-30 | Gas water heating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109764529A true CN109764529A (en) | 2019-05-17 |
| CN109764529B CN109764529B (en) | 2021-03-02 |
Family
ID=66451367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811500015.9A Active CN109764529B (en) | 2018-11-30 | 2018-11-30 | Gas water heating equipment |
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| CN109764529B (en) | 2021-03-02 |
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