CN206683228U

CN206683228U - A kind of condensing boiler

Info

Publication number: CN206683228U
Application number: CN201720392796.9U
Authority: CN
Inventors: 宋永超
Original assignee: Beijing Connie Energy Environmental Protection Technology Co Ltd
Current assignee: Beijing Connie Energy Environmental Protection Technology Co Ltd
Priority date: 2017-04-14
Filing date: 2017-04-14
Publication date: 2017-11-28
Anticipated expiration: 2027-04-14

Abstract

The utility model discloses a kind of condensing boiler,Including combustor body and flue gas header,The flue gas header is fixed on the bottom of combustor body,The combustor body inner bottom part is provided with multiple rows of cross smoke pipe,The bottom of the cross smoke pipe is provided with flue gas air heat-exchange finned tube,The flue gas air heat-exchange finned tube is fixed on inside flue gas header,One end of the flue gas header is provided with air intake header,The air intake header is connected by pipeline with blower fan,The flue gas header bottom is connected with smoke exhaust pipe,The upper end of the smoke exhaust pipe is provided with double-deck smoke pipe,The double-deck smoke pipe is connected with blower fan,The other end of the flue gas header is provided with air outlet slit header,This condensing boiler,The back draft that everybody worry is effectively prevent by hindering tempering unit layer may,Again because burning is carried out under finned tube,The requirement that burner does not filter strictly to air,Also burning risk and the maintenances such as combustion front blocking will not occur.

Description

A kind of condensing boiler

Technical field

Boiler technology field is the utility model is related to, specially a kind of condensing boiler.

Background technology

In the combustor concept of broad sense, water heater, the gas range of family expenses, or even lighter etc. are construed as burning One kind of machine.By its operation principle, burner can be defined as to one kind material is passed through into this chemical reaction mode of burning Convert a kind of equipment-i.e. by air of heat energy with fuel by pre-mixing apparatus by proper proportion mix and convert so that it fully burns.

Gas fired-boiler surrounds 30mg/m at present³Most harsh environmental requirement, and realize that the condensation efficiency of high efficiency boiler rate will Ask, all producers all very contradiction：The low nitrogen index of environmental protection is ensure that, but because must be used again very using ferrochrome surface combustion High excess air factor, nearly 10% efficiency of boiler is just sacrificed, if fraction boiler efficiency, air not excess combustion The safe operation of ferrochrome surface combustion machine cannot be ensured, also can not just realize low nitrogen burning.And metal surface is burnt Air mustn't be carried out strictly to filter, greatly inconvenience and burning risk are brought for operation use.

Utility model content

The purpose of this utility model is to provide a kind of condensing boiler, to solve the problems mentioned in the above background technology.

To achieve the above object, the utility model provides following technical scheme：A kind of condensing boiler, including combustor body With flue gas header, the flue gas header is fixed on the bottom of combustor body, and the combustor body inner bottom part is provided with multiple rows of Cross smoke pipe, the bottom of the cross smoke pipe are provided with flue gas air heat-exchange finned tube, and the flue gas air heat-exchange finned tube is consolidated It is scheduled on inside flue gas header, one end of the flue gas header is provided with air intake header, and the air intake header passes through pipe Road is connected with blower fan, and the flue gas header bottom is connected with smoke exhaust pipe, and the upper end of the smoke exhaust pipe is provided with double-deck smoke pipe, described Double-deck smoke pipe is connected with blower fan, and the other end of the flue gas header is provided with air outlet slit header, and the air outlet slit header is led to Piping is connected with combustor body upper end, and the combustor body is located at cross smoke pipe upper end and is provided with combustion front water circulation wing Piece pipe dish, the combustor body upper end are provided with air intlet pipe, and it is electronic to be sequentially installed with combustion gas on the air intlet pipe Regulating valve, the first natural gas control valve and the second natural gas control valve, the first natural gas control valve and the second natural gas control It is connected between valve processed with one end of connecting tube, gas ignition control valve is installed in the connecting tube.

Preferably, the both ends of the combustion front water circulation fin pipe dish are separately installed with combustion front water circulation water inlet pipe and combustion Burning face water circulation outlet pipe.

Preferably, the air outlet slit header in the connecting tube of combustor body with being provided with air door electric control valve.

Preferably, multiple finned tubes, and the upper end of finned tube has been mounted side by side in the combustion front water circulation fin pipe dish Burning resistance tempering element is installed.

Preferably, ignitor is installed below one end of the finned tube.

Preferably, the combustor body bottom portion side is connected with boiler discharging tube one end, the boiler discharging tube it is another One end is connected with air outlet slit header.

Preferably, the top of the other end face burning resistance tempering element of the connecting tube.

Preferably, the cross smoke pipe is stainless steel material.

Compared with prior art, the beneficial effects of the utility model are：This condensing boiler, 1, employ fin pipe surface combustion Burn and ensure that combustion flame burns under scattered very low flame temperature, flame is not in high-temperature area, avoids nitrogen oxygen Compound generates；Simultaneously employ resistance tempering unit layer effectively prevent everybody worry back draft may, and because burning Carried out under tangible finned tube, the requirement that burner does not filter strictly to air, the burning wind such as combustion front blocking will not also occur Danger and maintenance, greatly reduce user and use difficulty and maintenance capacity, because the blower fan of the combustion system is separately provided, also allow for pre- Mixed change overcomes the burning back pressure of change to adjust, and to be typically all blower fan all-in-one can not disassemble replacing to other combustors.Make With very inconvenient.

2nd, because employing inner cross stainless steel smoke pipe, inner cross structure improves the heat exchange of flue gas and boiler water well Area, to realize the heat exchange and condensation of flue gas with seldom metal material, while flue gas/air heat-exchange is set in flue gas end Device, flue gas is condensed using the cold air below Cryogenic air, especially 0 ° of winter, the heat in the flue gas of recovery is with profit Heated in combustion air, this make it that boiler efficiency has reached the condensation effect of almost total efficiency, just as make use of exclusive combustion Burning mode and exclusive Boiler smoke tube technology, while the smoke pipe is also allowed for cleaning and repaired, and is avoided and is much exchanged heat using finned tube The problem of being difficult to cleaning maintenance.The material of stainless steel, which has, simultaneously avoids the maximum etching problem of condensing boiler.

3rd, the boiler is provided with flue gas air heat-exchange energy-saving appliance, the energy-saving appliance and boiler body individually connect it is supporting, not only Substantially increasing boiler efficiency realizes full condensation, and operation is very safe, and maintenance is very convenient, and production steel consumption significantly subtracts It is few, manufacturing cost has been saved, has also allowed for maintenance and the replacing of lens.Flue gas/air heat exchanger is exactly individually to be arranged in boiler On base, it can be changed, if as being revealed using a spot corrosion flue gas with the passing of time occurs, even if can not change also not at once Influence to use, facilitate user to arrange maintenance time, after the design structure principle determines, different capacity boiler, its inner cross is changed The length of heat pipe does not change, and the height of combustion chamber does not change, it is only necessary to according to the heat-transfer surface required for new boiler calculation and then It is determined that tube bank how much, then determines boiler-burner, and corresponding flue gas air recuperation of heat size according to boiler power.

Brief description of the drawings

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is the utility model finned tube dish structure schematic diagram；

Fig. 3 is the utility model cross flue structure schematic diagram.

In figure：1- combustor bodies；2- flue gas headers；3- cross smoke pipes；4- flue gas air heat-exchange finned tubes；5- air enters Mouth header；6- blower fans；7- smoke exhaust pipes；8- bilayer smoke pipes；9- air outlet slit headers；10- combustion front water circulation fin pipe dish；11- Air intlet pipe；12- combustion gas electric control valves；The first natural gas control valves of 13-；The second natural gas control valves of 14-；15- connections Pipe；16- gas ignition control valves；17- combustion front water follows water inlet pipe；18- combustion front water circulation outlet pipes；19- air door electric adjustables Save valve；20- finned tubes；21- burning resistance tempering elements；22- ignitors；23- boiler discharging tubes.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

Fig. 1-3 are referred to, the utility model provides a kind of technical scheme：A kind of condensing boiler, including the He of combustor body 1 Flue gas header 2, the flue gas header 2 are fixed on the bottom of combustor body 1, and the inner bottom part of combustor body 1 is provided with more Cross smoke pipe 3 is arranged, the bottom of the cross smoke pipe 3 is provided with flue gas air heat-exchange finned tube 4, the flue gas air heat-exchange fin Pipe 4 is fixed on inside flue gas header 2, and one end of the flue gas header 2 is provided with air intake header 5, the air intake collection Case 5 is connected by pipeline with blower fan 6, and the bottom of flue gas header 2 is connected with smoke exhaust pipe 7, and the upper end of the smoke exhaust pipe 7 is provided with Double-deck smoke pipe 8, the double-deck smoke pipe 8 are connected with blower fan 6, and the other end of the flue gas header 2 is provided with air outlet slit header 9, The air outlet slit header 9 is connected by pipeline with the upper end of combustor body 1, and the combustor body 1 is located on cross smoke pipe 3 End is provided with combustion front water circulation fin pipe dish 10, and the upper end of combustor body 1 is provided with air intlet pipe 11, the air Combustion gas electric control valve 12, the first natural 13 and second natural gas control valve 14 of gas control valve are sequentially installed with inlet tube 11, It is connected between the first natural 13 and second natural gas control valve 14 of gas control valve with one end of connecting tube 15, the connecting tube Gas ignition control valve 16 is installed on 15.

The both ends of the combustion front water circulation fin pipe dish 10 are separately installed with combustion front water circulation water inlet pipe 17 and burning Face water circulation outlet pipe 18, the air outlet slit header 9 in the connecting tube 15 of combustor body 1 with being provided with air door motorized adjustment Valve 19, multiple finned tubes 20, and the upper end installation of finned tube 20 are mounted side by side in the combustion front water circulation fin pipe dish 10 There is burning resistance tempering element 21, ignitor 22, the bottom of combustor body 1 are installed below one end of the finned tube 20 Side is connected with the one end of boiler discharging tube 23, and the other end of the boiler discharging tube 23 is connected with air outlet slit header 9, the company The top of the other end face burning resistance tempering element 21 of adapter 15, the cross smoke pipe 3 is stainless steel material.

Operation principle：When in use, combustion gas and air are imported by connecting tube 15 and air intlet pipe 11 by burning first In device body 1, lighted a fire by ignitor 22, and due to the effect of finned tube, so that flame is in finned tube surface combustion It ensure that combustion flame burns under scattered very low flame temperature, flame is not in high-temperature area, avoids nitrogen oxidation Compound generates, and because the use stainless steel material of cross smoke pipe 3 can improve the heat-transfer surface of flue gas and boiler water well Product, to realize the heat exchange and condensation of flue gas with seldom metal material, by flue gas air heat-exchange finned tube 4, operation is pacified very much Entirely, maintenance is very convenient, and production steel consumption is greatly decreased, and has saved manufacturing cost, also allows for maintenance and the replacing of lens.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims

1. a kind of condensing boiler, including combustor body (1) and flue gas header (2), it is characterised in that：The flue gas header (2) It is fixed on the bottom of combustor body (1), combustor body (1) inner bottom part is provided with multiple rows of cross smoke pipe (3), and described ten The bottom of word smoke pipe (3) is provided with flue gas air heat-exchange finned tube (4), and the flue gas air heat-exchange finned tube (4) is fixed on cigarette Gas header (2) is internal, and one end of the flue gas header (2) is provided with air intake header (5), the air intake header (5) It is connected by pipeline with blower fan (6), flue gas header (2) bottom is connected with smoke exhaust pipe (7), the upper end of the smoke exhaust pipe (7) Double-deck smoke pipe (8) is installed, the double-deck smoke pipe (8) is connected with blower fan (6), and the other end of the flue gas header (2) is provided with Air outlet slit header (9), the air outlet slit header (9) are connected by pipeline with combustor body (1) upper end, the combustor Body (1) is located at cross smoke pipe (3) upper end and is provided with combustion front water circulation fin pipe dish (10), on the combustor body (1) End is provided with air intlet pipe (11), and combustion gas electric control valve (12), first are sequentially installed with the air intlet pipe (11) Natural gas control valve (13) and the second natural gas control valve (14), the first natural gas control valve (13) and the second natural gas control It is connected between valve (14) processed with one end of connecting tube (15), gas ignition control valve (16) is installed on the connecting tube (15).

A kind of 2. condensing boiler according to claim 1, it is characterised in that：The combustion front water circulation fin pipe dish (10) Both ends be separately installed with combustion front water circulation water inlet pipe (17) and combustion front water circulation outlet pipe (18).

A kind of 3. condensing boiler according to claim 1, it is characterised in that：The air outlet slit header (9) and combustor Air door electric control valve (19) is installed in the connecting tube (15) of body (1).

A kind of 4. condensing boiler according to claim 1, it is characterised in that：The combustion front water circulation fin pipe dish (10) On be mounted side by side multiple finned tubes (20), and the upper end of finned tube (20) is provided with burning resistance tempering element (21).

A kind of 5. condensing boiler according to claim 4, it is characterised in that：Installed below one end of the finned tube (20) There is ignitor (22).

A kind of 6. condensing boiler according to claim 1, it is characterised in that：Combustor body (1) bottom side with Boiler discharging tube (23) one end is connected, and the other end of the boiler discharging tube (23) is connected with air outlet slit header (9).

A kind of 7. condensing boiler according to claim 1, it is characterised in that：The other end face combustion of the connecting tube (15) Burn the top of resistance tempering element (21).

A kind of 8. condensing boiler according to claim 1, it is characterised in that：The cross smoke pipe (3) is stainless steel material.