CN206300191U - A kind of full premix boiler - Google Patents
A kind of full premix boiler Download PDFInfo
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- CN206300191U CN206300191U CN201621418539.XU CN201621418539U CN206300191U CN 206300191 U CN206300191 U CN 206300191U CN 201621418539 U CN201621418539 U CN 201621418539U CN 206300191 U CN206300191 U CN 206300191U
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Abstract
A kind of full premix boiler of the utility model, belongs to energy exchange field；Technical problem to be solved there is provided a kind of full premix boiler, using double check, the attributes such as temperature, liquid level, flame status, pressure are monitored with the control device outside control board using independence, considerably increase the overall security of boiler, replace copper product using Steel material simultaneously, reduce the overall cost of equipment；Solve technical scheme that the technical problem uses for：A kind of full premix boiler, including heat exchanger, frequency conversion fan and burner, heat exchanger includes heat exchanger tube, and the two ends of heat exchanger tube are provided with fixed plate, are additionally provided with igniter and ion probe, catchment covers are provided with the outside of fixed plate, storage chamber is formed between catchment covers and fixed plate, water inlet and delivery port are provided with the catchment covers of top, drainpipe is provided with the catchment covers of lower section, the input of burner is connected with frequency conversion fan, in the fuel gas input burner that frequency conversion fan will be mixed.
Description
Technical field
A kind of full premix boiler of the utility model, belongs to power interchange technique field.
Background technology
Premixed technology is that fuel and air are thoroughly mixed before combustion chamber burner is entered, by premix chamber by gas
Body molecule fully stirs scattered mixing, is then burnt again, is referred to as to premix boiler entirely using the boiler of this technology, prior art
In full premix boiler there are many drawbacks, traditional burner causes the problems such as due to oxygen distribution and combustion gas admission velocity
Burning is insufficient, and harmful gas emission is big；Other, due to being high temperature and high pressure environment in boiler, can be to appliance controling element
Impact, when a failure occurs, it is easy to major accident occur；Further, the heat exchanger tube used in prior art is used
Copper product, but copper product cost is high, causes boiler cost increase.
Utility model content
The utility model overcomes the deficiency of prior art presence, there is provided a kind of full premix boiler, using double check,
The attributes such as temperature, liquid level, flame status, pressure are monitored with the control device outside control board using independence, significantly
The overall security of boiler is increased, while replacing copper product using Steel material, the overall cost of equipment is reduced.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of full premix boiler, including shell
Body, smoke box, heat exchanger, frequency conversion fan and burner, the heat exchanger are located inside smoke box, and the heat exchanger includes changing
Heat pipe, the heat exchanger tube is multiple, is in a parallel set, and the two ends of multiple heat exchanger tubes are provided with fixed plate, the heat exchanger tube
Annular spread is formed by the restriction of fixed plate, the center of the fixed plate above is provided with burner flange, institute
State burner and be arranged at the annular center that multiple heat exchanger tubes are formed through burner flange, outside the burner flange
Extended to be equipped with division board, water segregation outside division board, is prevented water from flowing into burner, the ring of the division board by the division board
Igniter and the ion probe for monitoring flame status are inside additionally provided with, catchment covers are provided with the outside of the fixed plate,
Storage chamber is formed between the catchment covers and fixed plate, water circulation channel is formed between the storage chamber and heat exchanger tube；
Water inlet and delivery port are provided with the catchment covers above, on the tube wall of the water inlet and delivery port
Temperature sensor is provided with, drainpipe is provided with the underlying catchment covers；
The input of the burner is connected with frequency conversion fan, and the frequency conversion fan is connected with fuel gas pipeline, the frequency conversion
Gas valve body and venturi valve are provided between blower fan and fuel gas pipeline, one end of the venturi valve is connected with gas valve body,
The other end of the venturi valve is provided with air cleaner, and the venturi valve is mixed air with combustion gas, the combustion
By the fuel gas after step-down be input into burner for the pressure reduction of mixed gas, the frequency conversion fan by air valve body, the combustion
Gaseous-pressure switch is provided with air pipe；
The smoke box, frequency conversion fan and burner are respectively positioned on enclosure interior, the water inlet and delivery port and drainpipe
All extend to the outside of housing, exhaust opening is provided with below the housing.
The heat exchanger tube includes body, and the outer surface of tube body is surrounded with helical fin, and the body and helical fin are equal
Using steel, it is fixedly connected by high-frequency welding between the helical fin and body.
Spoiler is provided with the outside of the heat exchanger tube, the spoiler quantity is multiple, into uniform distribution, the phase
It is at an angle of between adjacent two spoilers and is set so that positioned at the cylindrical angle of heat exchanger tube into projective structure, positioned at two heat exchanger tube
Between angle be in depression structure.
The surface of the burner is evenly distributed with multiple burner ports, and the burner port is rectangular, the table of the burner
Face is coated with metal web.
Fin is provided with the fixed plate, the fin is four, and storage chamber is divided into four regions by the fin,
Four form four backhauls between region and heat exchanger tube, the water inlet and delivery port are located at different regions.
Between the surrounding and housing of the smoke box and surface of catchment covers is provided with heat-preservation cotton, is set on the smoke box
There is the cotton layer drainpipe for discharging heat-preservation cotton condensed water, the cotton layer drainpipe extends to hull outside, the smoke box top
Inner walls on be provided with the Sound-proof material for preventing noise.
The enclosure interior is additionally provided with control board, temperature limit controller high, anti-dry controller, temperature, pressure table
And blast switch, the outside of the housing is provided with guidance panel, peak of the anti-dry controller positioned at delivery port.
Flame-observing hole is provided with the smoke box, the flame-observing hole is located at the top of division board region, the flame-observing hole
Top is provided with the speculum for being easy to observation.
Combustion gas strainer valve and combustion gas hand off valve are provided with the fuel gas pipeline, the combustion gas strainer valve is located at housing
On outside fuel gas pipeline.
Air cleaner is provided with the housing.
The utility model has the advantages that compared with prior art：
1st, the application uses metal fiber burner, and into miniature intensive design, its surface covers metal web to fire hole,
Make burning more abundant, flame distribution evenly, makes heat exchanger be heated evenly, while reducing nitrogen oxides from theory of combustion angle
Formation.
2nd, the application is adjusted into the pressure of combustion gas in frequency conversion fan using gas valve body, realizes that wideband adjusts air pressure, real
The stabilization of existing gas supply, gas outlet realizes low pressure values, so as to ensure constant air-fuel ratio；Other, using gas valve
Equipment can be directly accessed low-pressure fuel gas pipe network by body, reduced while gas facility is invested and improved whole system level of security.
3rd, whole boiler control system limits controller, anti-dry by mechanically and electrically sub-controller double combination using temperature is high
Controller, gaseous-pressure switch etc. are controlled independently of the control element of this electronic control system to boiler, display in real time
Operation conditions, for stable operation of the boiler provides comprehensive safety guarantee.
4th, the application is mixed using frequency conversion fan to air and combustion gas, accurate adjustment gas flow, improves air-fuel ratio
Accuracy, improve efficiency of combustion while fundamentally effectively control nitrogen oxides discharge；Other, realize heat supply
The electrodeless variable frequency adjustment of output, changes frequency conversion burning, by efficiency of combustion and applying working condition seamless combination according to water temperature；Other,
It is smoke evacuation power that one equipment provides air intake simultaneously, so as to accomplish that balanced type is discharged fume.
5th, the application is exchanged heat using four backhauls, on the premise of high efficient heat exchanging is met, water quality and flue gas pair is reduced as far as possible
The influence of heat exchanger, more adapts to the complicated running environment that flue gas corrosion is strong, water quality is partially hard.
6th, the heat exchanger in the present apparatus uses Steel material, and helical fin is welded using high-frequency welding manner,
Steel material low cost in itself, and Steel material can be welded using high-frequency welding manner in itself, high-frequency welding manner causes to change
Hot device possesses resistance to pressure higher, improves service life and safety coefficient.
Brief description of the drawings
The utility model is described further below in conjunction with the accompanying drawings.
Fig. 1 is internal structure schematic diagram of the present utility model.
Fig. 2 is sectional view of the present utility model.
Fig. 3 is the structural representation of burner.
Fig. 4 is rearview of the present utility model.
1 it is housing in figure, 2 be smoke box, 3 be heat exchanger, 4 be frequency conversion fan, 5 be burner, 6 be heat exchanger tube, 7 is solid
Fixed board, 8 be burner flange, 9 be division board, 10 be igniter, 11 be ion probe, 12 be catchment covers, 13 be storage chamber,
14 is water inlet, 15 is delivery port, 16 is drainpipe, 17 is fuel gas pipeline, 18 is gas valve body, 19 is exhaust opening, 20 is to hinder
Stream plate, 21 be burner port, 22 be metal web, 23 be fin, 24 be cotton layer drainpipe, 25 be temperature it is high limit controller, 26
For temperature, pressure table, 27 be blast switch, 28 be flame-observing hole, 29 be speculum, 30 be combustion gas hand off valve, 31 be anti-dry
Controller, 32 guidance panels, 33 be venturi valve, 34 be heat-preservation cotton, 35 be Sound-proof material, 36 be air cleaner, 37 be temperature
Sensor.
Specific embodiment
As shown in Fig. 1 ~ Fig. 4, a kind of full premix boiler of the utility model, including housing 1, smoke box 2, heat exchanger 3, frequency conversion
Blower fan 4 and burner 5, the heat exchanger 3 are located inside smoke box 2, and the heat exchanger 3 includes heat exchanger tube 6, the heat exchanger tube
6 is multiple, is in a parallel set, and the heat exchanger tube 6 includes body, and the outer surface of tube body is surrounded with helical fin, the body
Steel is used with helical fin, is fixedly connected by high-frequency welding between the helical fin and body, while cost-effective,
Improve the pressure-resistant performance of heat exchanger tube.
The two ends of multiple heat exchanger tubes 6 are provided with fixed plate 7, and the heat exchanger tube 6 is cyclic by the restriction of fixed plate 7
Shape is distributed, and the center of the fixed plate 7 above is provided with burner flange 8, and the burner 5 passes through burner method
Blue 8 are arranged at the annular center that multiple heat exchanger tubes 6 are formed, and the extension of the burner flange 8 is provided with division board 9,
Water segregation outside division board 9, is prevented water from flowing into burner 5 by the division board 9, is additionally provided with the ring of the division board 9
Igniter 10 and the ion probe 11 for monitoring flame status, the outside of the fixed plate 7 is provided with catchment covers 12, described
Storage chamber 13 is formed between catchment covers 12 and fixed plate 7, water circulation channel is formed between the storage chamber 13 and heat exchanger tube 6.
Water inlet 14 and delivery port 15, the water inlet 14 and delivery port are provided with the catchment covers 12 above
Temperature sensor 37 is provided with 15 tube wall, drainpipe 16 is provided with the underlying catchment covers 12.
Fin 23 is provided with the fixed plate 7, the fin 23 is four, and be divided into for storage chamber 13 by the fin 23
Four regions, form four backhauls between four regions and heat exchanger tube 6, four backhaul heat exchangers can preferably reduce water quality and flue gas
The influence of heat exchanging device, the water inlet 14 and delivery port 15 are located at different regions.
The input of the burner 5 is connected with frequency conversion fan 4, and the frequency conversion fan 4 is connected with fuel gas pipeline 17, described
Be provided with gas valve body 18 and venturi valve 33 between frequency conversion fan 4 and fuel gas pipeline 17, one end of the venturi valve 33 with
Gas valve body is connected, and the other end of the venturi valve 33 is provided with air cleaner 36, the venturi valve 33 by air with
Combustion gas is mixed, and the pressure of mixed gas is reduced to zero by the gas valve body 18, so as to provide the combustion gas of stabilization, the frequency conversion
Blower fan 4 is provided with gaseous-pressure switch, gas pressure by the fuel gas input burner 5 after step-down on the fuel gas pipeline
Power is switched independently of whole electronic control system, it is to avoid boiler runs in the state of gaseous-pressure is improper.
The smoke box 2, frequency conversion fan 4 and burner 5 are respectively positioned on inside housing 1, the water inlet 14 and delivery port 15 with
And drainpipe 16 all extends to the outside of housing 1, the lower section of the housing 1 is provided with exhaust opening 19.
The outside of the heat exchanger tube 6 is provided with spoiler 20, and the quantity of the spoiler 20 is multiple, into uniform distribution,
It is at an angle of between the two neighboring spoiler 20 and is set so that positioned at the cylindrical angle of heat exchanger tube 6 into projective structure, positioned at two
Angle between individual heat exchanger tube 6 is in depression structure, and farthest can be enclosed in heat exchanger tube flue gas by this special construction
Portion, prevents flue gas from overflowing.
The surface of the burner 5 is evenly distributed with multiple burner ports 21, and the burner port 21 is rectangular, the burner
5 surface is coated with metal web 22, and size is relevant in itself with the model and burner of boiler for the level of confidentiality degree of burner port 21,
Need as the case may be to set specific dense degree.
Between the surrounding and housing 1 of the smoke box 2 and surface of catchment covers 12 is provided with heat-preservation cotton 34, can be further
Prevent flue gas from overflowing, when run into cold and heat succeed each other when, can be produced in heat-preservation cotton 34 be provided with condensed water, therefore smoke box 2 for
The cotton layer drainpipe 24 of the condensed water of heat-preservation cotton 34 is discharged, the cotton layer drainpipe 24 is extended to outside housing 1, on the smoke box 2
The Sound-proof material 35 for preventing noise is provided with the inner walls of side.
Control board is additionally provided with inside the housing 1, the electric elements of this equipment, including various sensings is controlled
Device, such as return water temperature sensor, hydraulic pressure sensor, flue-gas temperature sensor, Load Regulation, burning control are carried out to whole boiler
System, temperature-compensating, module control etc., are additionally provided with temperature limit controller 25 high in housing, temperature limit controller 25 high is equally
Set independently of control system, belong to purely mechanic temperature controller, be provided with when electronic temperature controller breaks down
The guarantee of effect, plays a part of dual-temperature protection；
Anti-dry controller 31 is additionally provided with, anti-dry controller 31 is equally independently of control system, by liquid
Position control, more accurately timely ensures that equipment stops all operations under exsiccosis, and the anti-dry controller 31 is located at
The peak of delivery port 15；
There is temperature, pressure table 26 in addition, preferably from the double aobvious tables of integral temperature pressure, be easy to user safeguarding dimension
The ruuning situation of boiler more in real time, accurately, is directly understood when repairing；
Blast switch 27 is additionally provided with, blast switch 27 can be the state with air quantity with real-time monitoring blower fan.
The outside of the housing 1 is provided with guidance panel 32.
Flame-observing hole 28 is provided with the smoke box 2, the flame-observing hole 28 is located at the top of the region of division board 9, the sight
The top of fire hole 28 be provided be easy to observation speculum 29, observation personnel can by the direct viewing flame-observing hole 28 of speculum 29,
So that fired state is very clear, high-strength high temperature-resistant glass material is used on flame-observing hole.
Combustion gas strainer valve and combustion gas hand off valve 30 are provided with the fuel gas pipeline 17, the combustion gas strainer valve is avoided
Influence of the combustion gas impurity to burning valve body and burner, improves operation safety, it is ensured that the normal service life of equipment, combustion gas filtering
Valve is located on the fuel gas pipeline of hull outside, convenient for cleaning and replacing.
Air cleaner 36 is provided with the housing 1, it is ensured that in the case of enough air requirements, reduces foul atmosphere pair
The influence of metal burner.
Specific work process：
First, combustion gas hand off valve 30 is gone into open position, then sets to need the temperature in guidance panel 32
The temperature wanted, then confirms circulating pump in opening, and anti-dry controller 31 can monitor liquid level, when delivery port 15 also fills
During full water, anti-dry controller 31 confirms to fill water in heat exchanger 6, and frequency conversion fan 4 can carry out test run to ensure normal work
Make, control board sends heat demand after receiving signal, and detects each sensor and controller, after all going well, become
Frequency blower fan 4 starts full-speed operation, is pre-purged, and now blast switch 27 is opened, and igniter 10 is lighted a fire after everything is ready, fires
Air valve body 18 is powered, gas valve body 18 perceive frequency conversion fan 4 pressure, there is provided combustion gas, into venturi valve 33 after premixed,
Under the effect of the pressure, the mixture of combustion gas and air enter burner 5 in, igniter 10 by mixed gas ignition,
Ion probe 11 confirms whether the flame in burner 5 is normal simultaneously.
The real-time monitoring water temperature of temperature sensor 37, when water temperature is close to design temperature, the input of burner 5 will subtract
Few, when input is equal to demand, burner 5 will stabilise at a certain input value, when water temperature is more than design temperature, burner 5
Input will be reduced.
The heat for producing burn by the way that in the incoming water of heat exchanger 3, the flowing of flue gas is by the spoiler 20 on the outside of heat exchanger tube 6
Control so that Heat transmission is maximum, flue gas finally enters collector and discharges outside machine.
When built-in temperature and pressure occur abnormal, temperature limit controller 25 high directly cuts off general supply, it is ensured that safety.
Embodiment of the present utility model is explained in detail above in conjunction with accompanying drawing, but the utility model is not limited to
Embodiment is stated, in the ken that those of ordinary skill in the art possess, the utility model objective can also not departed from
On the premise of various changes can be made.
Claims (10)
- It is 1. a kind of to premix boiler entirely, it is characterised in that：Including housing（1）, smoke box（2）, heat exchanger（3）, frequency conversion fan（4）With Burner（5）, the heat exchanger（3）Positioned at smoke box（2）Inside, the heat exchanger（3）Including heat exchanger tube（6）, it is described to change Heat pipe（6）It is multiple, is in a parallel set, multiple heat exchanger tubes（6）Two ends be provided with fixed plate（7）, the heat exchanger tube（6） By fixed plate（7）Restriction form annular spread, the fixed plate above（7）Center be provided with burner method It is blue（8）, the burner（5）Through burner flange（8）It is arranged at multiple heat exchanger tubes（6）The annular center for being formed, The burner flange（8）Extension be provided with division board（9）, the division board（9）By water segregation in division board（9）Outward, prevent Sealing flows into burner（5）It is interior, the division board（9）Ring in be additionally provided with igniter（10）With for monitoring flame status Ion probe（11）, the fixed plate（7）Outside be provided with catchment covers（12）, the catchment covers（12）With fixed plate（7） Between form storage chamber（13）, the storage chamber（13）With heat exchanger tube（6）Between form water circulation channel；The catchment covers above（12）On be provided with water inlet（14）And delivery port（15）, the water inlet（14）With go out The mouth of a river（15）Tube wall on be provided with temperature sensor（37）, the underlying catchment covers（12）On be provided with drainpipe （16）；The burner（5）Input and frequency conversion fan（4）Connection, the frequency conversion fan（4）With fuel gas pipeline（17）Connection, The frequency conversion fan（4）With fuel gas pipeline（17）Between be provided with gas valve body（18）And venturi valve（33）, the venturi Valve（33）One end be connected with gas valve body, the venturi valve（33）The other end be provided with air cleaner（36）, it is described Venturi valve（33）Air is mixed with combustion gas, the gas valve body（18）By the pressure reduction of mixed gas, the change Frequency blower fan（4）Fuel gas after step-down is input into burner（5）It is interior, gaseous-pressure switch is provided with the fuel gas pipeline；The smoke box（2）, frequency conversion fan（4）And burner（5）It is respectively positioned on housing（1）Inside, the water inlet（14）And water outlet Mouthful（15）And drainpipe（16）All extend to housing（1）Outside, the housing（1）Lower section be provided with exhaust opening（19）.
- 2. one kind according to claim 1 is complete premixes boiler, it is characterised in that：The heat exchanger tube（6）It is described including body Outer surface of tube body is surrounded with helical fin, and the body and helical fin use steel, lead between the helical fin and body Cross high frequency and be welded and fixed connection.
- 3. one kind according to claim 1 is complete premixes boiler, it is characterised in that：The heat exchanger tube（6）Outside be provided with Spoiler（20）, the spoiler（20）Quantity is multiple, into uniform distribution, the two neighboring spoiler（20）Between into Angle is set so that positioned at heat exchanger tube（6）Cylindrical angle into projective structure, positioned at two heat exchanger tubes（6）Between angle into Sunk structure.
- 4. one kind according to claim 1 is complete premixes boiler, it is characterised in that：The burner（5）Surface uniformly divide It is furnished with multiple burner ports（21）, the burner port（21）It is rectangular, the burner（5）Surface be coated with metal web （22）.
- 5. one kind according to claim 1 is complete premixes boiler, it is characterised in that：The fixed plate（7）On be provided with fin （23）, the fin（23）It is four, the fin（23）By storage chamber（13）It is divided into four regions, four regions and heat exchange Pipe（6）Between form four backhauls, the water inlet（14）And delivery port（15）Positioned at different regions.
- 6. one kind according to claim 1 is complete premixes boiler, it is characterised in that：The smoke box（2）Surrounding and housing（1） Between and catchment covers（12）Surface be provided with heat-preservation cotton（34）, the smoke box（2）On be provided with for discharging heat-preservation cotton （34）The cotton layer drainpipe of condensed water（24）, the cotton layer drainpipe（24）Extend to housing（1）Outside, the smoke box（2）On The Sound-proof material for preventing noise is provided with the inner walls of side（35）.
- 7. one kind according to claim 1 is complete premixes boiler, it is characterised in that：The housing（1）Inside is additionally provided with control Circuit board processed, temperature limit controller high（25）, anti-dry controller（31）, temperature, pressure table（26）And blast switch（27）, institute State housing（1）Outside be provided with guidance panel（32）, the anti-dry controller（31）Positioned at delivery port（15）Peak.
- 8. one kind according to claim 1 is complete premixes boiler, it is characterised in that：The smoke box（2）On be provided with flame-observing hole （28）, the flame-observing hole（28）Positioned at division board（9）The top of region, the flame-observing hole（28）Top be provided be easy to see The speculum examined（29）.
- 9. one kind according to claim 1 is complete premixes boiler, it is characterised in that：The fuel gas pipeline（17）On be provided with combustion Gas strainer valve and combustion gas hand off valve（30）, the combustion gas strainer valve is positioned at housing（1）Outside fuel gas pipeline（17）On.
- 10. one kind according to claim 1 is complete premixes boiler, it is characterised in that：The housing（1）On be provided with air mistake Filter（36）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621418539.XU CN206300191U (en) | 2016-12-22 | 2016-12-22 | A kind of full premix boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621418539.XU CN206300191U (en) | 2016-12-22 | 2016-12-22 | A kind of full premix boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206300191U true CN206300191U (en) | 2017-07-04 |
Family
ID=59204332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621418539.XU Active CN206300191U (en) | 2016-12-22 | 2016-12-22 | A kind of full premix boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206300191U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106003A (en) * | 2017-12-15 | 2018-06-01 | 大连圣鼎工业装备有限公司 | A kind of premixed type gas boiler applied in module boiler controller system |
| CN108278622A (en) * | 2018-03-06 | 2018-07-13 | 江苏智道工程技术有限公司 | A kind of ultra-clean stove of exhaust-gas treatment and waste gas processing method |
-
2016
- 2016-12-22 CN CN201621418539.XU patent/CN206300191U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106003A (en) * | 2017-12-15 | 2018-06-01 | 大连圣鼎工业装备有限公司 | A kind of premixed type gas boiler applied in module boiler controller system |
| CN108278622A (en) * | 2018-03-06 | 2018-07-13 | 江苏智道工程技术有限公司 | A kind of ultra-clean stove of exhaust-gas treatment and waste gas processing method |
| CN108278622B (en) * | 2018-03-06 | 2024-04-26 | 江苏智道工程技术有限公司 | Ultra-clean furnace for waste gas treatment and waste gas treatment method |
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