CN208886740U - Efficient low nitrogen horizontal tubular boiler - Google Patents
Efficient low nitrogen horizontal tubular boiler Download PDFInfo
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- CN208886740U CN208886740U CN201821312621.3U CN201821312621U CN208886740U CN 208886740 U CN208886740 U CN 208886740U CN 201821312621 U CN201821312621 U CN 201821312621U CN 208886740 U CN208886740 U CN 208886740U
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- water cavity
- heat exchanger
- exchanger tube
- chamber
- low nitrogen
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Abstract
The utility model discloses efficiently low nitrogen horizontal tubular boilers a kind of in boiler technology field, including shell, combustion chamber and condensation chamber are equipped in shell, surface combustion burner is equipped in combustion chamber, the first heat exchanger tube is equipped in combustion chamber, the first water cavity being connected to the first heat exchanger tube is equipped between combustion chamber front and back end and shell, bottom of combustion chamber is equipped with the outlet flue being connected to condensation chamber, the second heat exchanger tube is equipped in condensation chamber, the second water cavity being connected to the second heat exchanger tube is equipped between condensation chamber front and back end and shell, and second water cavity be connected to the first water cavity, the gas baffle of multiple levels is additionally provided in condensation chamber, there are gaps between gas baffle side and shell, and the gap interlaced arrangement of adjacent gas baffle.Efficiently low nitrogen horizontal tubular boiler, the following fume exhausting type of the high-temperature flue gas for generation of burning enter condensation chamber and advance wherein in " S " type track, improve heat transfer effect, reduce the exhaust temperature of flue gas, to reduce the pernicious gas content in flue gas for this.
Description
Technical field
The utility model relates to a kind of boiler, in particular to a kind of efficiently low nitrogen horizontal tubular boiler.
Background technique
Present coal burning and gas burning boiler, furnace interior design is unreasonable, and flue gas residence time in furnace body is short, exhaust gas temperature
Height, pernicious gas content is high in flue gas, causes the thermal efficiency low, environmental protection and energy saving effect is poor.With the development of national economy, its people's section
The raising of energy environmental consciousness adapts to environmental protection, energy-efficient requirement, it is necessary to further increase pot to improve inhabitation and investment environment
Furnace thermal efficiency reduces the NO in flue gasXEqual pernicious gases content.
In Chinese patent database, a kind of coal conversion coal gas environment friendly energy-saving ordinary pressure water-boiling boiler is disclosed, application No. is:
200820013852.4；The applying date are as follows: 2008-07-02；Open (bulletin) number are as follows: CN201237344Y；Publication date are as follows:
2009-05-13.The normal-pressure hot-water boiler of the patent by be staggered in shell multiple heat exchanges being connected to water jacket every
Plate slows down mass rate of emission so that flue gas discharge path is tortuous, reduces smog discharge temperature.Although the structure improves to a certain degree
Boiler thermal efficiency, and reduce pernicious gas content in flue gas, but still be not able to satisfy country it is increasingly strict it is efficient, energy saving,
Environmental requirement.
Utility model content
A kind of the purpose of the utility model is to provide thermals efficiency higher, more environmentally-friendly efficient low nitrogen horizontal tubular boiler.
Purpose of the utility model is realized as follows: a kind of efficiently low nitrogen horizontal tubular boiler, including shell, in shell
Equipped with combustion chamber and condensation chamber, it is equipped with surface combustion burner in combustion chamber, is equipped in combustion chamber around surface combustion burner horizontal
First heat exchanger tube, is equipped with the first water cavity being connected to the first heat exchanger tube between combustion chamber front and back end and shell, bottom of combustion chamber is set
There is the outlet flue being connected to condensation chamber, is equipped with the second horizontal heat exchanger tube in condensation chamber, is set between condensation chamber front and back end and shell
There is the second water cavity being connected to the second heat exchanger tube, and the second water cavity is connected to the first water cavity, multiple levels are additionally provided in condensation chamber
Gas baffle, there are gap between gas baffle side and shell, and the gap interlaced arrangement of adjacent gas baffle.
The efficient low nitrogen horizontal tubular boiler of the utility model, the following fume exhausting type of the high-temperature flue gas for generation of burning wash away combustion
The first heat exchanger tube of indoor arrangement is burnt, and after sufficiently being absorbed heat, is circular layout to form rotation flue gas according to the first heat exchanger tube, with the
One backhaul tangentially passes through outlet flue and enters condensation chamber, stops to form multiple backhauls through multiple tracks gas baffle and washes away the first heat exchanger tube,
Make flue gas that " S " type track be presented to advance, increases the exchange opportunity of flue gas and the second heat exchanger tube, so that heat exchange is more uniform, and
Heat transfer effect is improved, the exhaust temperature of flue gas is reduced, to reduce the NO in flue gasXEqual pernicious gases content.
The second water cavity includes preceding water cavity and rear water cavity as a further improvement of the utility model, and preceding water cavity passes through first
Water cavity before water cavity and second before vertical clapboard is divided into first, water cavity is divided into front lower room and preceding upper chamber by the first diaphragm plate before first,
Lower room and rear upper chamber after water cavity is divided by the second diaphragm plate afterwards, front lower room are equipped with condensation chamber water inlet, and front lower room passes through the
Two heat exchanger tubes are connected to rear lower room, and lower room is connected to by the second heat exchanger tube with water cavity before second afterwards, and water cavity passes through second before second
Heat exchanger tube is connected to rear upper chamber, and rear upper chamber is connected to by the second heat exchanger tube with preceding upper chamber, and preceding upper chamber is equipped with condensation chamber water outlet.
To, water shape " S " type in condensation chamber is flowed at four backhauls, and abundant heat exchange has been carried out with flue gas, has greatly strengthened heat transfer effect,
Improve boiler thermal efficiency.
Combustion chamber and condensation chamber are separated by horizontal baffle as a further improvement of the utility model, outlet flue setting
On horizontal baffle.I.e. horizontal baffle is both combustion chamber soleplate and condensation chamber top plate, keeps boiler internal structure more compact, drop
Low material cost, the structure are suitable for normal-pressure hot-water boiler.
The quantity of gas baffle is at least 3 as a further improvement of the utility model, so that flue gas at least passes through
Four backhauls heat exchange is crossed, heat transfer effect is enhanced, improves heat exchange efficiency.
Heat Room is equipped in shell as a further improvement of the utility model, Heat Room is located above combustion chamber, heat exchange
Room is connected to the first water cavity by underwater orifice plate, and being horizontally disposed in Heat Room has third heat exchanger tube, and the front and back end of Heat Room is equipped with
The third water cavity being connected to third heat exchanger tube, third water cavity water inlet are connected to condensation chamber water outlet.The structure is suitable for steam
Boiler intakes as Heat Room by using condensation chamber water outlet, is sufficiently exchanged heat with steam, improve steam quality.
Several second vertical clapboards are equipped in third water cavity as a further improvement of the utility model, so that condenser
Water outlet forms the more backhaul flowings of " S " type in Heat Room, and then has carried out abundant heat exchange with steam, further enhances heat exchange effect
Fruit improves heat exchange efficiency.
The first heat exchanger tube and the second heat exchanger tube are all made of stainless steel finned tube as a further improvement of the utility model,.
By using the finned tube design with extended surface, boiler convection heat exchange area can be made to be multiplied, further improved
Boiler thermal efficiency can reduce boiler corrosion using stainless steel material, extend to boiler service life can 30 years.
Surface combustion burner is using full premix surface combustion burner, surface combustion burner as a further improvement of the utility model,
Air inlet and fuel gas inlet be all made of venturi-type structure.To which according to oxygen content in flue gas, all-premixing burner is automatic
It adjusts air and fuel ratio, the discharge of reed time controll boiler smoke NOx finally realizes that low nitrogen is energy-efficient.
Condensation chamber water inlet is connected to boiler system water return pipeline as a further improvement of the utility model, further
Improve boiler thermal efficiency.
Shell is externally provided with insulating layer as a further improvement of the utility model, to further increase boiler thermal efficiency.
Detailed description of the invention
Fig. 1 is the schematic diagram of the embodiment 1 of the efficient low nitrogen horizontal tubular boiler of the utility model.
Fig. 2 is the Water flow-path direction schematic diagram of the embodiment 1 of the efficient low nitrogen horizontal tubular boiler of the utility model.
Fig. 3 is the flue gas flow direction schematic diagram of the embodiment 1 of the efficient low nitrogen horizontal tubular boiler of the utility model.
Fig. 4 is the schematic diagram of the embodiment 2 of the efficient low nitrogen horizontal tubular boiler of the utility model.
Fig. 5 is the Water flow-path direction schematic diagram of the embodiment 2 of the efficient low nitrogen horizontal tubular boiler of the utility model.
Fig. 6 is the flue gas flow direction schematic diagram of the embodiment 2 of the efficient low nitrogen horizontal tubular boiler of the utility model.
Fig. 7 is the schematic diagram of the embodiment 3 of the efficient low nitrogen horizontal tubular boiler of the utility model.
Fig. 8 is the Water flow-path direction schematic diagram of the embodiment 3 of the efficient low nitrogen horizontal tubular boiler of the utility model.
Fig. 9 is the flue gas flow direction schematic diagram of the embodiment 3 of the efficient low nitrogen horizontal tubular boiler of the utility model.
Wherein, 1 combustion chamber, 2 condensation chambers, 3 surface combustion burners, 4 first heat exchanger tubes, 5 first water cavities, 6 outlet flues, 7 second
Heat exchanger tube, water cavity before 8, water cavity after 9,10 condensation chamber water inlets, 11 condensation chamber water outlets, 12 gas baffles, 13 Heat Rooms,
14 underwater orifice plates, 15 third heat exchanger tubes, 16 third water cavities, 17 insulating layers.
Specific embodiment
Embodiment 1
Efficient low nitrogen horizontal tubular boiler as shown in Figs. 1-3 is a kind of micro-pressure steam boiler, including shell, is set in shell
Combuster 1 and condensation chamber 2.Surface combustion burner 3 horizontally extends into combustion chamber 1 outside shell.Surface combustion burner 3 is using full premix table
Face burner, air inlet and fuel gas inlet are all made of venturi-type structure.
It is equipped with the first horizontal heat exchanger tube 4 around surface combustion burner 3 in combustion chamber 1, the first heat exchanger tube 4 uses stainless steel
Finned tube.The first water cavity 5 being connected to the first heat exchanger tube 4 is equipped between 1 front and back end of combustion chamber and shell.1 bottom of combustion chamber is in
Arc-shaped, preferably pressure-bearing, guarantee use safe.1 bottom of combustion chamber is equipped with outlet flue 6.
6 position of outlet flue is corresponded at the top of condensation chamber 2 equipped with smoke inlet, condensation chamber 2 is interior to be equipped with the second horizontal heat exchanger tube 7,
Second heat exchanger tube 7 also uses stainless steel finned tube.3 horizontal gas baffles 12, gas baffle 12 1 are additionally provided in condensation chamber
There are gap between side and shell, and the gap interlaced arrangement of adjacent gas baffle 20, so that flue gas be made to present in condensation chamber
Advance " S " type track.2 bottom of condensation chamber is equipped with condensation chamber outlet flue, and condensation chamber outlet flue is connect with chimney.
The flue gas flow of the efficient low nitrogen horizontal tubular boiler is as follows: the following fume exhausting type punching of the high-temperature flue gas for generation of burning
The first heat exchanger tube 4 arranged in combustion chamber 1 is brushed, and after sufficiently being absorbed heat, is circular layout to form rotation cigarette according to the first heat exchanger tube 4
Gas tangentially passes through outlet flue with the first backhaul and enters condensation chamber, through flue gas spacers block formed second and third backhaul wash away the
Turn back after two heat exchanger tubes 7, with the 4th backhaul the second heat exchanger tube of transversal flow 7 again after turning back, finally by condensation chamber outlet flue into
Enter chimney and is discharged into atmosphere.
It is equipped with the second water cavity for being connected to the second heat exchanger tube 7 between 2 front and back end of condensation chamber and shell, and the second water cavity and the
The demarcation plate of one water cavity is equipped with through-hole, is allowed to be connected to.Second water cavity includes preceding water cavity 8 and rear water cavity 9, and preceding water cavity 8 passes through the
Water cavity before water cavity and second before one vertical clapboard is divided into first, before first water cavity by the first diaphragm plate be divided into front lower room and before on
Room, lower room and rear upper chamber after rear water cavity 9 is divided by the second diaphragm plate, front lower room is equipped with condensation chamber water inlet 10, condensation chamber
Water inlet 10 is connected to boiler system water return pipeline.Front lower room be connected to by the second heat exchanger tube with rear lower room, it is rear under room pass through the
Two heat exchanger tubes are connected to water cavity before second, and the second preceding water cavity is connected to by the second heat exchanger tube with rear upper chamber, and rear upper chamber passes through second
Heat exchanger tube is connected to preceding upper chamber, and preceding upper chamber is equipped with condensation chamber water outlet 11.In this way, water in condensation chamber shape " S " type at four times
Cheng Liudong (four backhauls are as shown in A, B, C, D in Fig. 2), has carried out abundant heat exchange with flue gas, has greatly strengthened heat transfer effect, improves
Boiler thermal efficiency.
The efficient low nitrogen horizontal tubular boiler of the present embodiment further includes Heat Room 13, and Heat Room 13 is located at 1 top of combustion chamber,
Heat Room 13 is connected to the first water cavity 5 by underwater orifice plate 14, and being horizontally disposed in Heat Room 13 has third heat exchanger tube 15, Heat Room
13 front and back end is equipped with the third water cavity 16 being connected to third heat exchanger tube 15,16 water inlet of third water cavity and condensation chamber water outlet 11
Connection.Several second vertical clapboards are equipped in third water cavity 16, so that leaving condenser water forms the more backhauls of " S " type in Heat Room
Flowing, and then abundant heat exchange has been carried out with steam, improve heat exchanger efficiency.Shell is externally provided with insulating layer 17, to further mention
High boiler thermal efficiency.
The micro-pressure steam boiler of the present embodiment uses the finned tube designing technique with extended surface, can make boiler convection
Heat exchange area is multiplied, and thoroughly changes the form image of conventional boiler, and flue gas is washed away through four backhauls, working medium also carries out four times
Journey is turned back, so that high-temperature flue gas and fin intraductal working medium carry out after sufficiently exchanging heat, the exhaust gas temperature of boiler is reduced within 60 DEG C,
Design thermal efficiency is up to 105%, finally realizes high-efficiency environment friendly energy-conservation, and boiler is manufactured using minute-pressure, is able to satisfy 115 DEG C of user and satisfies
With steam requirement, while the micro-pressure structure is not required to handle installation and puts formality on record, directly docking air water connector.
Embodiment 2
Efficient low nitrogen horizontal tubular boiler as Figure 4-Figure 6 is a kind of vacuum and steam boiler, except valve seat, instrument tube socket are set
Meter is outer, and primary structure is substantially the same manner as Example 1, and details are not described herein.
Using the vacuum and steam boiler of the present embodiment, the exhaust gas temperature of boiler can be made to be reduced within 60 DEG C, design thermal effect
Rate is up to 105%, finally realizes high-efficiency environment friendly energy-conservation, and boiler is manufactured using vacuum structure, is not required to handle installation and puts formality on record,
Directly dock Inlet and outlet water connector.
Embodiment 3
Efficient low nitrogen horizontal tubular boiler as Figure 7-9 is a kind of normal-pressure hot-water boiler, except valve seat, instrument tube socket are set
Meter is outer, and the main distinction of basic structure embodiment 1 is: being not provided with heat exchanger；1 bottom plate of combustion chamber is plate, and is made simultaneously
For condensation chamber top plate, keeps boiler internal structure more compact, reduce material cost.
Using the normal-pressure hot-water boiler of the present embodiment, the exhaust gas temperature of boiler can be made to be reduced within 60 DEG C, design thermal effect
Rate is up to 105%, finally realizes high-efficiency environment friendly energy-conservation.
The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed by the utility model, this
For the technical staff in field according to disclosed technology contents, not needing creative labor can be special to some of which technology
Sign makes some replacements and deformation, these replacements and deformation are within the protection scope of the present utility model.
Claims (10)
1. a kind of efficiently low nitrogen horizontal tubular boiler, including shell, the shell is interior to be equipped with combustion chamber and condensation chamber, the burning
Interior is equipped with surface combustion burner, it is characterised in that: is equipped with horizontal first around the surface combustion burner in the combustion chamber
Heat exchanger tube is equipped with the first water cavity being connected to the first heat exchanger tube, the combustion chamber bottom between the combustion chamber front and back end and shell
Portion is equipped with the outlet flue being connected to condensation chamber, is equipped with the second horizontal heat exchanger tube, the condensation chamber front and back end in the condensation chamber
The second water cavity being connected to the second heat exchanger tube is equipped between the shell, and second water cavity is connected to the first water cavity, institute
The gas baffle that multiple levels are additionally provided in condensation chamber is stated, there are gaps between the gas baffle side and the shell, and
The gap interlaced arrangement of adjacent gas baffle.
2. efficiently low nitrogen horizontal tubular boiler according to claim 1, it is characterised in that: second water cavity includes preceding water
Chamber and rear water cavity, water cavity before water cavity and second before the preceding water cavity is divided into first by the first vertical clapboard, water cavity before described first
It is divided into front lower room and preceding upper chamber by the first diaphragm plate, the rear water cavity descends room and rear upper chamber after being divided by the second diaphragm plate,
The front lower room is equipped with condensation chamber water inlet, and the front lower room is connected to by the second heat exchanger tube with rear lower room, lower room after described
It is connected to by the second heat exchanger tube with water cavity before second, the second preceding water cavity is connected to by the second heat exchanger tube with rear upper chamber, described
Upper chamber is connected to by the second heat exchanger tube with preceding upper chamber afterwards, and the preceding upper chamber is equipped with condensation chamber water outlet.
3. efficiently low nitrogen horizontal tubular boiler according to claim 1, it is characterised in that: the combustion chamber and condensation chamber are logical
Horizontal baffle separation is crossed, the outlet flue is arranged on the horizontal baffle.
4. efficiently low nitrogen horizontal tubular boiler according to claim 1, it is characterised in that: the quantity of the gas baffle is extremely
It is less 3.
5. efficiently low nitrogen horizontal tubular boiler according to claim 2, it is characterised in that: be equipped with heat exchange in the shell
Room, the Heat Room are located above the combustion chamber, and the Heat Room is connected to first water cavity by underwater orifice plate, described
Being horizontally disposed in Heat Room has third heat exchanger tube, and the front and back end of the Heat Room is equipped with the third being connected to the third heat exchanger tube
Water cavity, the third water cavity water inlet are connected to the condensation chamber water outlet.
6. efficiently low nitrogen horizontal tubular boiler according to claim 5, it is characterised in that: if being equipped in the third water cavity
Dry second vertical clapboard.
7. described in any item efficiently low nitrogen horizontal tubular boilers according to claim 1 ~ 6, it is characterised in that: first heat exchange
Pipe and the second heat exchanger tube are all made of stainless steel finned tube.
8. described in any item efficiently low nitrogen horizontal tubular boilers according to claim 1 ~ 6, it is characterised in that: the surface burning
Device is all made of venturi-type structure using full premix surface combustion burner, the air inlet and fuel gas inlet of the surface combustion burner.
9. according to claim 1 ~ 6 it is described in any item efficiently low nitrogen horizontal tubular boilers, it is characterised in that: the condensation chamber into
The mouth of a river is connected to boiler system water return pipeline.
10. described in any item efficiently low nitrogen horizontal tubular boilers according to claim 1 ~ 6, it is characterised in that: outside the shell
Equipped with insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821312621.3U CN208886740U (en) | 2018-08-15 | 2018-08-15 | Efficient low nitrogen horizontal tubular boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821312621.3U CN208886740U (en) | 2018-08-15 | 2018-08-15 | Efficient low nitrogen horizontal tubular boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208886740U true CN208886740U (en) | 2019-05-21 |
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ID=66508940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821312621.3U Active CN208886740U (en) | 2018-08-15 | 2018-08-15 | Efficient low nitrogen horizontal tubular boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208886740U (en) |
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2018
- 2018-08-15 CN CN201821312621.3U patent/CN208886740U/en active Active
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