CN206656500U - A kind of boiler high-efficiency and energy-saving type variable cross-section convection current screen - Google Patents
A kind of boiler high-efficiency and energy-saving type variable cross-section convection current screen Download PDFInfo
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- CN206656500U CN206656500U CN201720453472.1U CN201720453472U CN206656500U CN 206656500 U CN206656500 U CN 206656500U CN 201720453472 U CN201720453472 U CN 201720453472U CN 206656500 U CN206656500 U CN 206656500U
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Abstract
A kind of boiler high-efficiency and energy-saving type variable cross-section convection current screen, it is related to a kind of boiler convection current screen, and in particular to a kind of boiler high-efficiency and energy-saving type variable cross-section convection current screen.The utility model is higher in order to solve existing boiler energy consumption, the problem of waste of resource.The utility model includes M type convection current screen assemblies and V-type convection current screen assembly, M type convection current screen assemblies and V-type convection current screen assembly are successively set in convection pass, and M type convection current screen assembly is located in the high-temperature region of convection pass, V-type convection current screen assembly is located in the low-temperature space of convection pass.The utility model belongs to boiler manfacturing field.
Description
Technical field
It the utility model is related to a kind of boiler convection current screen, and in particular to a kind of high-efficiency and energy-saving type variable cross-section convection current of boiler
Screen, belongs to boiler manfacturing field.
Background technology
Scarcity of resources has turned into when the severe social concern of previous item.In order to effectively solve this problem, promote resource profit
With the lifting of rate, it is necessary to strengthen, using modern technical force, for boiler, reaching energy-saving purpose, just need
The support of power-saving technology that will be related.
Utility model content
The utility model is higher to solve existing boiler energy consumption, the problem of waste of resource, and then proposes a kind of boiler height
Imitate energy-saving variable cross-section convection current screen.
The utility model adopts the technical scheme that to solve the above problems：The utility model includes M type convection current screen assemblies
With V-type convection current screen assembly, M type convection current screen assemblies and V-type convection current screen assembly are successively set in convection pass, and M type convection current screens
Component is located in the high-temperature region of convection pass, and V-type convection current screen assembly is located in the low-temperature space of convection pass.
The beneficial effects of the utility model are：1st, M types convection current screen processing of the present utility model is simple, a pipe Curved Continuous
System, high in machining efficiency without spelling group, technique, quality inspection workload are small；2nd, M types convection current screen of the present utility model is compact-sized, is heated
Area is big, saves steel；3rd, M types convection current screen of the present utility model is simple in construction, small with water-cooling wall assembly working amount after flue, water
It is circulation safe, reliable；Compared to conventional convection screen, afterbody arrangement multistage V-arrangement screen, assembling is cumbersome, and screen pipe gos deep into water-cooling wall after flue
Excessively, assembling is easily overproof, gos deep into long destructible water circulation, heating surface cannot cool down, and easily cause the vaporization of large area, very
To accidents such as boosters；4th, the utility model is coordinated using M type convection current screens and V-type convection current screen variable cross-section, and heat exchange efficiency is high, does not accumulate
Ash.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
Embodiment
Embodiment one：Illustrate present embodiment with reference to Fig. 1, a kind of boiler described in present embodiment is with energy-efficient
Type variable cross-section convection current screen includes M type convection current screen assembly 1 and V-type convection current screen assembly 2, M type convection current screen assembly 1 and V-type convection current screen group
Part 2 is successively set in convection pass 3, and M type convection current screen assembly 1 is located in the high-temperature region 3-1 of convection pass 3, V-type convection current screen
Component 2 is located in the low-temperature space 3-2 of convection pass 3.
Embodiment two：Illustrate present embodiment with reference to Fig. 1, a kind of boiler described in present embodiment is with energy-efficient
The M type convection current screen assembly 1 of type variable cross-section convection current screen is sequentially overlapped by more M shape metal tubes 1-1 and formed, V-type convection current screen assembly 2
It is sequentially overlapped and is formed by more V-arrangement metal tube 2-1, each M shapes metal tube 1-1 and V-arrangement metal tube 2-1 diameter is
38mm, each M shapes metal tube 1-1 and V-arrangement metal tube 2-1 thickness is 3.5mm.Other compositions and annexation and specific implementation
Mode one is identical.
Embodiment three：Illustrate present embodiment with reference to Fig. 1, a kind of boiler described in present embodiment is with energy-efficient
Type variable cross-section convection current screen also includes gas baffle 4, and gas baffle 4 is arranged on in flow through shaft 3-3, one end of gas baffle 4 with
The inwall connection of convection pass 3, the other end of gas baffle 4 are connected with V-type convection current screen assembly 2.Other compositions and annexation
It is identical with embodiment one.
Operation principle
In high-temperature region, the M type convection current screen assembly 1 of arrangement large area fully absorbs the heat of high-temperature flue gas, M type convection current screen groups
Part 1 is compact-sized, occupies little space, and heat exchange efficiency is high, by taking 130 tons of hot-water boilers as an example, the inlet flue gas temperature of M type convection current screen assembly 1
862 DEG C, M type convection current screen assembly 1 exports 422 DEG C of cigarette temperature, the convection heating surface of M type convection current screen assembly 1 product 1124m2, flue gas flow rate
9.5m/s caloric receptivity 5319kJ/kg, high-temperature flue gas pass through after M type convection current screen assembly 1, and cigarette temperature is greatly lowered into small bore
V-type convection current screen assembly 2,422 DEG C of 2 inlet flue gas temperature of V-type convection current screen assembly, 325 DEG C of outlet cigarette temperature, the convection current of V-type convection current screen assembly 2
Heating surface area 418m2, flue gas flow rate 11.2m/s caloric receptivities 1131kJ/kg, artificial diminution convection pass vertical shaft section, increase cigarette
Gas velocity, the heat exchange efficiency that one side flue gas flow rate increases convection heating surface increase, and on the other hand, high velocity smoke will can be deposited on
Fly ash granule on heating surface is taken away, and reduces the heat transfer resistance of heating surface, further improves the heat exchange efficiency of convection heating surface.I.e.
Velocity of flue gas during underrun is also reached 7.8m/s, not dust stratification, ensure cleaning and the heat exchange efficiency of heating surface.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, although the utility model is disclosed above with preferred embodiment, but be not limited to the utility model, it is any ripe
Professional and technical personnel is known, is not being departed from the range of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, as long as being without departing from technical solutions of the utility model
Hold, according to the technical essence of the utility model, within the spirit and principles of the utility model, what above example was made appoints
What simple modification, equivalent substitution and improvement etc., still falls within the protection domain of technical solutions of the utility model.
Claims (3)
- A kind of 1. boiler high-efficiency and energy-saving type variable cross-section convection current screen, it is characterised in that：A kind of boiler is become with high-efficiency and energy-saving type Convection current screen in section includes M type convection current screen assemblies (1) and V-type convection current screen assembly (2), M type convection current screen assemblies (1) and V-type convection current screen Component (2) is successively set in convection pass (3), and M type convection current screen assemblies (1) are located at the high-temperature region (3-1) of convection pass (3) Interior, V-type convection current screen assembly (2) is located in the low-temperature space (3-2) of convection pass (3).
- A kind of 2. boiler high-efficiency and energy-saving type variable cross-section convection current screen according to claim 1, it is characterised in that：M type convection current screens Component (1) is sequentially overlapped by more M shapes metal tubes (1-1) and formed, and V-type convection current screen assembly (2) is by more V-arrangement metal tubes (2-1) is sequentially overlapped composition, and the diameter of each M shapes metal tube (1-1) and V-arrangement metal tube (2-1) is 38mm, each M shapes gold The thickness of category pipe (1-1) and V-arrangement metal tube (2-1) is 3.5mm.
- A kind of 3. boiler high-efficiency and energy-saving type variable cross-section convection current screen according to claim 1, it is characterised in that：A kind of pot Stove high-efficiency and energy-saving type variable cross-section convection current screen also includes gas baffle (4), and gas baffle (4) is arranged on in flow through shaft (3-3), One end of gas baffle (4) is connected with the inwall of convection pass (3), the other end and the V-type convection current screen assembly of gas baffle (4) (2) connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720453472.1U CN206656500U (en) | 2017-04-26 | 2017-04-26 | A kind of boiler high-efficiency and energy-saving type variable cross-section convection current screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720453472.1U CN206656500U (en) | 2017-04-26 | 2017-04-26 | A kind of boiler high-efficiency and energy-saving type variable cross-section convection current screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206656500U true CN206656500U (en) | 2017-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720453472.1U Active CN206656500U (en) | 2017-04-26 | 2017-04-26 | A kind of boiler high-efficiency and energy-saving type variable cross-section convection current screen |
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| CN (1) | CN206656500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340737A (en) * | 2018-11-19 | 2019-02-15 | 哈尔滨红光锅炉总厂有限责任公司 | A kind of corner tube boiler can be used for SCR denitration |
-
2017
- 2017-04-26 CN CN201720453472.1U patent/CN206656500U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340737A (en) * | 2018-11-19 | 2019-02-15 | 哈尔滨红光锅炉总厂有限责任公司 | A kind of corner tube boiler can be used for SCR denitration |
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