CN203478176U - Large horizontal type internal combustion fire-tube hot water boiler externally provided with smoke water heat exchanger - Google Patents
Large horizontal type internal combustion fire-tube hot water boiler externally provided with smoke water heat exchanger Download PDFInfo
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- CN203478176U CN203478176U CN201320449876.5U CN201320449876U CN203478176U CN 203478176 U CN203478176 U CN 203478176U CN 201320449876 U CN201320449876 U CN 201320449876U CN 203478176 U CN203478176 U CN 203478176U
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Abstract
The utility model relates to a large horizontal type internal combustion fire-tube hot water boiler externally provided with a smoke water heat exchanger. The large horizontal type internal combustion fire-tube hot water boiler comprises a boiler barrel (1), internal furnaces (2) and second return convection smoke tubes (4), wherein the boiler barrel (1) is horizontally arranged, and the internal furnaces (2) and the second return convection smoke tubes (4) are arranged in the boiler barrel (1). The large horizontal type internal combustion fire-tube hot water boiler is characterized in that the second return convection smoke tubes (4) are arranged below the internal furnaces (2); a reburning chamber (3), a turning smoke chamber (5) and the smoke water heat exchanger (6) are arranged outside the boiler barrel (1); heat exchange tubes of the smoke water heat exchanger adopt third return convection smoke tubes; the reburning chamber (3) is arranged on the rear side of the boiler barrel (1); and a shell pass of the reburning chamber (3) is communicated with the internal furnaces (2) and the second return convection smoke tubes (4), the second return convection smoke tubes (4) are communicated with the turning smoke chamber (5), and the turning smoke chamber (5) is communicated with the third return convection smoke tubes of the smoke water heat exchanger. The hot water boiler is a large-scale and modularized horizontal type internal combustion fire-tube boiler.
Description
Technical field
The utility model relates to a kind of horizontal internal combustion fire pipe water heating boiler.Belong to heating equipment technical field.
Background technology
Horizontal tubular boiler mostly is quick mounting type, has the advantages such as floor space is little, system is simple, easy for installation, accounts for critical role in industrial boilers in China.But this type of boiler is owing to being subject to GB/T16508 < < shell drum pressure parts intensity to calculate the structural limitations in > >, and exerting oneself of this type of boiler is generally no more than 20t/h(14MW).
Horizontal boiler has the incomparable advantage of water-tube boiler with the structure of its fast-assembling, transportation easily and mounting means.But along with the increase in demand of market to jumbo horizontal boiler, horizontal boiler is to large drum, large flue future development.Boiler belongs to pressure vessel, and drum or flue, along with diameter increases and pressure raising, all mean that the pressure-containing parts wall thickness such as boiler drum, flue increase.For the flue contacting with high-temperature flue gas and return combustion chamber, the senior general that crosses of thickness causes thermal stress excessive, jeopardizes boiler operatiopn safety.GB/T16508 < < shell drum pressure parts intensity is calculated 5.2.5 bar regulation " inner diameter D n straight or corrugated flue should not be greater than 1800mm ", " thickness should not be greater than 22mm " in > >; 5.2.5 bar regulation " return combustion chamber drum take thickness should be not more than 35mm ".This has determined no matter what material of use of the horizontal internal combustion boiler that uses in China, and flue internal diameter can not surpass 1800mm, thickness can not surpass 22mm, and return combustion chamber thickness can not surpass 35mm.Horizontal internal combustion boiler divides two kinds of dry back of the body formula and wetting back-types generally.Dry-back boiler is a lot of through moving for many years the problem exposing, and has belonged to the superseded type of furnace.At present domestic common be wetting back-type horizontal tubular boiler.Accompanying drawing 1 is conventional horizontal triple-pass fire-tube boiler flue gas flow schematic diagram.The flue of boiler is connected turning smoke-box with the second backhaul smoke pipe and is called return combustion chamber, flue gas after burning enters return combustion chamber from flue, transfer 180 ° and enter the second backhaul smoke pipe, return combustion chamber is immersed in the water in drum completely, high-temperature flue gas is wherein cooling in time by water, the security of operation of protection return combustion chamber, and on tube sheet (end socket) on return combustion chamber, also need the second backhaul smoke pipe of perforate welding sufficient amount heating surface, flue gas is transferred 180 ° and is entered the 3rd backhaul smoke pipe in drum from the second backhaul smoke pipe outlet in front smoke box, flue gas is emitted the rear smoke box from stove after heat and is discharged.In sum, boiler capacity surpasses 20t/h(14MW) boiler drum diameter very big.If shell diameter is too large, its manufacturing cost can surpass the water pipe of equal capacity and pressure.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and can realize horizontal tubular boiler maximization, modular horizontal internal combustion fire pipe water heating boiler.
The purpose of this utility model is achieved in that a kind of large-size horizontal internal combustion fire pipe water heating boiler of external cigarette water-to-water heat exchanger, comprise drum, flue and the second backhaul convection current smoke pipe, the horizontal layout of drum, flue and the second backhaul convection current smoke pipe are placed in drum, it is characterized in that: the second backhaul convection current smoke pipe is placed in flue below, drum is outside equipped with burning chamber, turning smoke-box and cigarette water-to-water heat exchanger, the heat exchanger tube of cigarette water-to-water heat exchanger adopts the 3rd backhaul convection current smoke pipe, burning chamber is placed in drum rear side, the shell side of burning chamber is connected with flue and the second backhaul convection current smoke pipe, the second backhaul convection current smoke pipe is connected with turning smoke-box, turning smoke-box is connected with the 3rd backhaul convection current smoke pipe of cigarette water-to-water heat exchanger.
The large-size horizontal internal combustion fire pipe water heating boiler of the external cigarette water-to-water heat exchanger of the utility model, described burning chamber forms rear water by water pipe membrane wall in a row and carries on the back.
The beneficial effects of the utility model are:
1, the 3rd backhaul smoke pipe is placed in outside drum, saves drum inner space, reduce drum diameter dimension.
2, cancel return combustion chamber, the turning smoke-box being placed in outside drum is replaced to return combustion chamber, the second backhaul smoke pipe is not subject to the restriction of return combustion chamber position, makes full use of the space in drum, and jumbo boiler drum diameter is further reduced.
3, be placed on the rear water that the burning chamber outside drum consists of water pipe membrane wall in a row and carry on the back, effectively prevent wall excess Temperature after boiler.
4 ,Lu Hou burning chamber arrange explosion proof door over against burner hearth position, when burner hearth generation detonation, are burner hearth pressure release in time, protection boiler plant.
5, as long as burner flame size allows, or use flameless combustion technology, with the boiler capacity of structure of the present utility model, can surpass 42MW, or drum appearance and size is done littlely.
6, after the outlet flue of cigarette water-to-water heat exchanger, can arrange in pairs or groups arbitrarily heat exchanger or condenser, can drop to exit gas temperature below flue gas condensing temperature, utilizes the latent heat of vaporization of steam in flue gas, reduces exhaust gas temperature, be conducive to save energy and reduce the cost, and protection of the environment.
7, the utility model can be realized the maximization of horizontal internal combustion multitubular boiler, modularization.
Accompanying drawing explanation
Fig. 1 is conventional horizontal triple-pass fire-tube boiler flue gas flow schematic diagram.
Fig. 2 is the large-size horizontal internal combustion fire pipe water heating boiler of the external cigarette water-to-water heat exchanger of the utility model.
Fig. 3 is for adopting the boiler side view of dual-furnace-chamber structure.
Reference numeral in figure:
The specific embodiment
Referring to Fig. 2, Fig. 2 is the large-size horizontal internal combustion fire pipe water heating boiler of the external cigarette water-to-water heat exchanger of the utility model.As seen from Figure 2, the large-size horizontal internal combustion fire pipe water heating boiler of the external cigarette water-to-water heat exchanger of the utility model, is mainly comprised of drum 1, flue 2, burning chamber 3, the second backhaul convection current smoke pipe 4, turning smoke-box 5 and cigarette water-to-water heat exchanger 6.The heat exchanger tube of cigarette water-to-water heat exchanger adopts the 3rd backhaul convection current smoke pipe.The horizontal layout of drum 1, flue 2 and the second backhaul convection current smoke pipe 4 are placed in drum 1, the second backhaul convection current smoke pipe 4 is placed in flue 2 belows, burning chamber 3, turning smoke-box 5 and cigarette water-to-water heat exchanger are placed in outside drum 1, burning chamber 3 is placed in drum 1 rear side, the shell side of burning chamber 3 is connected with flue 2 and the second backhaul convection current smoke pipe 4, and the second backhaul convection current smoke pipe 4 is connected with turning smoke-box 5, and turning smoke-box 5 is connected with the 3rd backhaul convection current smoke pipe of cigarette water-to-water heat exchanger.
Flue gas flow is:
Water flow-path is:
The backwater of forced circulation enters near the shell side outlet flue of external cigarette water-to-water heat exchanger, water absorb after the 3rd backhaul flue gas heat from shell side enter mouth near draw, the structure of counter-flow arrangement is conducive to cigarette water high efficient heat exchanging.Water is afterwards introduced the water pipe membrane wall lower header of burning chamber 3, and heated liter waterborne enters upper collecting chamber, enters drum inner space heated by flue and the second backhaul smoke pipe liberated heat from the back tube sheet of drum, makes water temperature reach the parameter of setting.
For the accessible EIAJ that meets structural requirement of checking boiler, accompanying drawing 3 shows the boiler that adopts dual-furnace-chamber structure, the corrugated flue of single maximum inner diameter 1800mm can be used as the burner hearth that 21MW exerts oneself, and through intensity calculating and heating power calculating boiler heap(ed) capacity, can reach 42MW.And drum internal diameter is only than the large 800-1000mm of the conventional three backhaul horizontal tubular boiler of 14MW.
Claims (2)
1. the large-size horizontal internal combustion fire pipe water heating boiler of an external cigarette water-to-water heat exchanger, comprise drum (1), flue (2) and the second backhaul convection current smoke pipe (4), the horizontal layout of drum (1), flue (2) and the second backhaul convection current smoke pipe (4) are placed in drum (1), it is characterized in that: the second backhaul convection current smoke pipe (4) is placed in flue (2) below, drum (1) is outside equipped with burning chamber (3), turning smoke-box (5) and cigarette water-to-water heat exchanger (6), the heat exchanger tube of cigarette water-to-water heat exchanger adopts the 3rd backhaul convection current smoke pipe, burning chamber (3) is placed in drum (1) rear side, the shell side of burning chamber (3) is connected with flue (2) and the second backhaul convection current smoke pipe (4), the second backhaul convection current smoke pipe (4) is connected with turning smoke-box (5), turning smoke-box (5) is connected with the 3rd backhaul convection current smoke pipe of cigarette water-to-water heat exchanger.
2. the large-size horizontal internal combustion fire pipe water heating boiler of a kind of external cigarette water-to-water heat exchanger according to claim 1, is characterized in that: burning chamber (3) forms rear water by water pipe membrane wall in a row and carries on the back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449876.5U CN203478176U (en) | 2013-07-26 | 2013-07-26 | Large horizontal type internal combustion fire-tube hot water boiler externally provided with smoke water heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449876.5U CN203478176U (en) | 2013-07-26 | 2013-07-26 | Large horizontal type internal combustion fire-tube hot water boiler externally provided with smoke water heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203478176U true CN203478176U (en) | 2014-03-12 |
Family
ID=50226501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320449876.5U Withdrawn - After Issue CN203478176U (en) | 2013-07-26 | 2013-07-26 | Large horizontal type internal combustion fire-tube hot water boiler externally provided with smoke water heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203478176U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398367A (en) * | 2013-07-26 | 2013-11-20 | 江苏双良锅炉有限公司 | Large horizontal internally fired fire-tube hot-water boiler with external smoke-water heat exchanger |
| CN104121569A (en) * | 2014-07-22 | 2014-10-29 | 江苏双良锅炉有限公司 | Horizontal fire tube boiler with gas-gas heat tube heat exchange tube arranged on tail |
| CN114719432A (en) * | 2022-04-27 | 2022-07-08 | 徐工消防安全装备有限公司 | Heating device, fire fighting truck heating and heat preservation control system and control method thereof |
-
2013
- 2013-07-26 CN CN201320449876.5U patent/CN203478176U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398367A (en) * | 2013-07-26 | 2013-11-20 | 江苏双良锅炉有限公司 | Large horizontal internally fired fire-tube hot-water boiler with external smoke-water heat exchanger |
| CN103398367B (en) * | 2013-07-26 | 2015-11-18 | 江苏双良锅炉有限公司 | The large-size horizontal internal combustion fire pipe water heating boiler of external cigarette water-to-water heat exchanger |
| CN104121569A (en) * | 2014-07-22 | 2014-10-29 | 江苏双良锅炉有限公司 | Horizontal fire tube boiler with gas-gas heat tube heat exchange tube arranged on tail |
| CN114719432A (en) * | 2022-04-27 | 2022-07-08 | 徐工消防安全装备有限公司 | Heating device, fire fighting truck heating and heat preservation control system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20151118 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20151118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |