CN106705009A - Small fuel gas low-pressure superheated steam generator - Google Patents
Small fuel gas low-pressure superheated steam generator Download PDFInfo
- Publication number
- CN106705009A CN106705009A CN201611122607.2A CN201611122607A CN106705009A CN 106705009 A CN106705009 A CN 106705009A CN 201611122607 A CN201611122607 A CN 201611122607A CN 106705009 A CN106705009 A CN 106705009A
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- superheated steam
- flue
- steam generator
- pipe
- pressure superheated
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/22—Methods of steam generation characterised by form of heating method using combustion under pressure substantially exceeding atmospheric pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G1/00—Steam superheating characterised by heating method
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to a small fuel gas low-pressure superheated steam generator. The small fuel gas low-pressure superheated steam generator comprises a hollow furnace shell with a heat insulation layer and a furnace pipe arranged in the furnace shell. A burner is arranged on the bottom of the furnace shell. An induced draft fan is arranged on the top of the furnace shell. A smoke pipe is arranged in the furnace pipe. The upper end and the lower end of the smoke pipe penetrate the furnace pipe. A steam superheater is arranged above the furnace pipe and communicates with the interior of the furnace pipe. A superheated steam outlet pipe is arranged at one end of the steam superheater. The small fuel gas low-pressure superheated steam generator is compact in structure, low in cost, capable of producing stable low-pressure superheated steam and saving energy and environmentally friendly and completely meets the market requirements, and the integrated small superheated steam generator is achieved.
Description
【Technical field】
The present invention relates to the technical field of steam generator, and in particular to a kind of small gas low-pressure superheated steam occurs
Device.
【Background technology】
Superheat steam drying (Superheated steam drying) be a latest developments get up dry new technology,
Refer to a kind of drying mode for being connect using superheated steam a surname and moisture removal being removed with being contacted by dry material, with traditional heated-air drying phase
Than several major advantages of superheat steam drying are as follows:Energy-saving effect is notable:The latent heat of steam can be made full use of, the thermal efficiency is high;
Superior product quality after dry:Superheated steam heat transfer coefficient is big;Dried medium is steam, without External mass transfer resistance:The ratio of superheated steam
Hot big, steam consumption is few:Without blast and fire hazard:Superheat steam drying is conducive to environmental protection:Superheated steam has sterilizing
Disinfective action etc..
In recent years, Superheated Steam Drying Technology is before dry processing, food processing, metal processing sectors are widely used
Scape.As the increasingly serious and people of energy crisis gradually step up to food quality requirement, superheat steam drying is in food work
The application of industry will be developed, and can especially reduce drying temperature and ensure that the low-pressure superheated steam of product quality is done simultaneously
It is dry, and the mutual supplement with each other's advantages between different drying modes.
The superheated steam device that currently there are, major part be by external device (ED) to carried out at overheat for steam
Reason, disposable input cost is higher, and miniaturization difficulty is big, it is impossible to adapt to the processing such as vast small-sized drying processing, food processing
The real needs of industry.
【The content of the invention】
To solve the above problems, it is an object of the invention to provide a kind of small gas low-pressure superheated steam generator, its
Integral small-sized can be realized, the low-pressure superheated steam of stabilization, and energy-conserving and environment-protective can be produced, meet the market demand.
To achieve the above object, the technical scheme taken of the present invention is:Small gas low-pressure superheated steam generator, including
One hollow furnace shell with thermal insulation layer and the flue being arranged in furnace shell, the bottom of furnace shell is provided with combustor, the top of furnace shell
Portion is provided with air-introduced machine, and smoke pipe is provided with flue, and the top and bottom of smoke pipe are run through flue, are provided with above the flue
Steam superheater, steam superheater is connected with inside flue, and one end of steam superheater is provided with superheated steam outlet pipe.
Small gas low-pressure superheated steam generator in the present invention is further arranged to:The steam superheater is by two
Overheat header composition arranged in parallel, connection, one of mistake are realized between two overheat headers by many communicating pipes
Hot header is connected with flue top, and the superheated steam outlet pipe is arranged in another overheat header.
Small gas low-pressure superheated steam generator in the present invention is further arranged to:The furnace shell is internally located at steam
Condensing heat exchanger is additionally provided with above superheater, condensing heat exchanger is made up of many interconnected pipes of spread configuration,
One end of condensing heat exchanger is water inlet, and the other end of condensing heat exchanger is connected with inside flue.
Small gas low-pressure superheated steam generator in the present invention is further arranged to:The smoke pipe includes transversely arranging
The some groups of bend pipes combination for setting is arranged, every group of bend pipe combination is made up of two S type bend pipes, the every top and bottom of S type bend pipes
Flue is stretched out, its lower end is gas approach, and upper end is exhanst gas outlet, and the bending direction of two S type bend pipes is identical, and curved
Bent traversing section is parallel to each other and fits, and the bending direction of adjacent bend pipe combination is opposite.
Small gas low-pressure superheated steam generator in the present invention is further arranged to:The flue is horizontal type structure,
Its two ends uses the arch bottom of indent.
Small gas low-pressure superheated steam generator in the present invention is further arranged to:The inwall of the furnace shell is provided with
Ceramic fiber cotton thermal insulation layer.
Small gas low-pressure superheated steam generator in the present invention is further arranged to:It is also associated with steaming on the flue
Vapour recovery tube.
Compared with prior art, the present invention has the advantages that:Above-mentioned small gas low-pressure superheated steam occurs
Device, it is its compact conformation, with low cost, Integral small-sized superheated steam generator is realized, the low area overheat of stabilization can be produced
Steam, and energy-conserving and environment-protective, fully meet the market demand.
【Brief description of the drawings】
Fig. 1 is internal structure schematic diagram of the invention.
Fig. 2 is the left view internal structure schematic diagram of Fig. 1;
Fig. 3 is the overlooking the structure diagram of steam superheater in Fig. 2;
In figure:1st, furnace shell, 2, flue, 3, combustor, 4, air-introduced machine, 5, smoke pipe, 6, steam superheater, 7, superheated steam goes out
Pipe, 8, overheat header, 9, communicating pipe, 10, condensing heat exchanger, 11, ceramic fiber cotton thermal insulation layer, 12, steam recovery pipe.
【Specific embodiment】
Further is made to small gas low-pressure superheated steam generator of the present invention below by specific embodiment
Describe in detail.
As shown in Figure 1 and Figure 2, small gas low-pressure superheated steam generator, including a hollow furnace shell with thermal insulation layer
1 is provided with combustor 3 with the flue 2 being arranged in furnace shell 1, the bottom of furnace shell 1, and the top of furnace shell 1 is provided with air-introduced machine 4, stove
Smoke pipe 5 is provided with courage 2, flue 2 is run through in the top and bottom of smoke pipe 5, and the top of the flue 2 is provided with steam superheater 6,
Steam superheater 6 is connected with inside flue 2, and one end of steam superheater 6 is provided with superheated steam outlet pipe 7.
Preferably, as shown in figure 3, the steam superheater 6 is by two 8 groups of overheat headers arranged in parallel
Into by realizing connection many communicating pipes 9 between two overheat headers 8, one of overheat header 8 is connected with the top of flue 2
Logical, the superheated steam outlet pipe 7 is arranged in another overheat header 8.By the structure design of double overheat headers 8, increased
Steam heating surface area, improves the quantum of output of superheated steam.
Preferably, the furnace shell 1 is internally located at the top of steam superheater 6 and is additionally provided with condensing heat exchanger 10,
Condensing heat exchanger 10 is made up of many interconnected pipes of spread configuration, and one end of condensing heat exchanger 10 is water inlet, cold
The other end of solidifying heat exchanger 10 is connected with inside flue 2.
Preferably, the flue 2 is horizontal type structure, and its two ends uses the arch bottom of indent.The smoke pipe 5 includes
The some groups of bend pipes combination of horizontal arranged setting, every group of bend pipe combination is made up of two S type bend pipes, every S type bend pipe it is upper
Flue 2 is stretched out in end and lower end, and its lower end is gas approach, and upper end is exhanst gas outlet, two bending direction phases of S type bend pipes
Together, the traversing section and in bending is parallel to each other and fits, and the bending direction of adjacent bend pipe combination is opposite.Using horizontal knot
Structure, multigroup double " S " the composite bend structures of preferred arrangement, effectively reduces internal ordinary water level volume while increasing heating surface area,
Internal water capacity is reduced in the case where plant machinery intensity is improved using high intensity bow bottom (head), so as to improve the heat of product
Efficiency, also greatly improves the security performance of steam generator.
Preferably, the inwall of the furnace shell 1 is provided with ceramic fiber cotton thermal insulation layer 11.By ceramic fiber cotton every
Thermosphere 11 inside furnace shell 1 to carrying out insulation.
Preferably, it is also associated with steam recovery pipe 12 on the flue 2.User can be with actual condition, to being used for
Dried residual steam accesses the steam recovery pipe 12 on the top of flue 2, and exchanged heat intensification again, recycling, reaches
The purpose of energy-conservation.
Operation principle of the invention is:After being worked positioned at the air-introduced machine 4 at top, the bottom that combustor 3 is located at flue 2 is fired
Burn.Flue gas carries out heat exchange and produces saturated vapor from double " S " bend pipe combinations in the inside of flue 2 with the inner furnace water of flue 2.Flue gas is again
The upper outlet combined by double " S " bend pipes enters high-temperature flue gas room, has double cluster case type steam mistakes in high-temperature flue gas indoor set
Hot device 6, two overheat headers 8 of double cluster case type steam superheaters 6 are located at the top of double " S " bend pipe combination outlets respectively.High temperature
The flue gas of smoke chamber is exchanged with the saturated vapor heat absorption that carries out again of the steam superheater 6 of double overheat headers 8, is collected by two overheats
Saturated vapor, is first changed into dry saturated steam by case 8 and the stage-by-stage heat exchange of communicating pipe 9, then endothermic transition is superheated steam.
Condensing heat exchanger 10 is provided with positioned at high-temperature flue gas room top, the moisturizing of steam generator first passes through condensing heat exchanger 10
Fill into inside generator again, moisturizing carries out heat exchange so as to reduce smoke evacuation temperature from normal-temperature water by condensing heat exchanger 10 and flue gas
Degree, and can fully reclaim the latent heat of condensation of the sensible heat and water vapour in flue gas exhaust gas temperature control to 60-70 DEG C or so.
Flue gas after cooling is discharged by top air-introduced machine 4.
The principle and its effect of the above embodiments only illustrative the invention, and the implementation that part uses
Example, not for the limitation present invention;It should be pointed out that for the person of ordinary skill of the art, not departing from wound of the present invention
On the premise of making design, various modifications and improvements can be made, these belong to protection scope of the present invention.
Claims (7)
1. small gas low-pressure superheated steam generator, including a hollow furnace shell with thermal insulation layer and be arranged in furnace shell
Flue, the bottom of furnace shell is provided with combustor, and air-introduced machine is provided with the top of furnace shell, is provided with smoke pipe in flue, smoke pipe it is upper
Flue is run through in end and lower end, it is characterised in that:Steam superheater is provided with above the flue, in steam superheater and flue
Portion is connected, and one end of steam superheater is provided with superheated steam outlet pipe.
2. small gas low-pressure superheated steam generator as claimed in claim 1, it is characterised in that:The steam superheater by
Two overheat header compositions arranged in parallel, realize connection, wherein one between two overheat headers by many communicating pipes
Individual overheat header is connected with flue top, and the superheated steam outlet pipe is arranged in another overheat header.
3. small gas low-pressure superheated steam generator as claimed in claim 1 or 2, it is characterised in that:Inside the furnace shell
Condensing heat exchanger is additionally provided with above steam superheater, condensing heat exchanger there are many interconnected pipes of spread configuration
Son composition, one end of condensing heat exchanger is water inlet, and the other end of condensing heat exchanger is connected with inside flue.
4. small gas low-pressure superheated steam generator as claimed in claim 1 or 2, it is characterised in that:The smoke pipe includes
The some groups of bend pipes combination of horizontal arranged setting, every group of bend pipe combination is made up of two S type bend pipes, every S type bend pipe it is upper
Flue is stretched out in end and lower end, and its lower end is gas approach, and upper end is exhanst gas outlet, and the bending direction of two S type bend pipes is identical,
And it is parallel to each other and fits in the traversing section of bending, the bending direction of adjacent bend pipe combination is opposite.
5. small gas low-pressure superheated steam generator as claimed in claim 1 or 2, it is characterised in that:The flue is sleeping
Formula structure, its two ends use the arch bottom of indent.
6. small gas low-pressure superheated steam generator as claimed in claim 1 or 2, it is characterised in that:The furnace shell it is interior
Wall is provided with ceramic fiber cotton thermal insulation layer.
7. small gas low-pressure superheated steam generator as claimed in claim 1 or 2, it is characterised in that:On the flue also
It is connected with steam recovery pipe.
Priority Applications (1)
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CN201611122607.2A CN106705009A (en) | 2016-12-08 | 2016-12-08 | Small fuel gas low-pressure superheated steam generator |
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CN201611122607.2A CN106705009A (en) | 2016-12-08 | 2016-12-08 | Small fuel gas low-pressure superheated steam generator |
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CN106705009A true CN106705009A (en) | 2017-05-24 |
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CN201611122607.2A Pending CN106705009A (en) | 2016-12-08 | 2016-12-08 | Small fuel gas low-pressure superheated steam generator |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112050187A (en) * | 2020-08-28 | 2020-12-08 | 中船九江锅炉有限公司 | Superheated steam boiler |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB313681A (en) * | 1928-04-02 | 1929-06-20 | Adolf Bartsch | Process and apparatus for the generation of steam |
CN2463683Y (en) * | 2000-11-23 | 2001-12-05 | 王树东 | Vertical atmospheric overheated steam boiler |
CN102607004A (en) * | 2012-03-21 | 2012-07-25 | 江苏太湖锅炉股份有限公司 | Hydrogen boiler structure |
CN202747319U (en) * | 2012-07-23 | 2013-02-20 | 江苏双良锅炉有限公司 | Oil burning or gas burning condensing type steam boiler arranged in front smokebox of superheater |
CN104879734A (en) * | 2015-05-26 | 2015-09-02 | 韩来平 | Energy-saving long-acting steam generating device |
CN206247293U (en) * | 2016-12-08 | 2017-06-13 | 张家港威孚热能股份有限公司 | Small gas low-pressure superheated steam generator |
-
2016
- 2016-12-08 CN CN201611122607.2A patent/CN106705009A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB313681A (en) * | 1928-04-02 | 1929-06-20 | Adolf Bartsch | Process and apparatus for the generation of steam |
CN2463683Y (en) * | 2000-11-23 | 2001-12-05 | 王树东 | Vertical atmospheric overheated steam boiler |
CN102607004A (en) * | 2012-03-21 | 2012-07-25 | 江苏太湖锅炉股份有限公司 | Hydrogen boiler structure |
CN202747319U (en) * | 2012-07-23 | 2013-02-20 | 江苏双良锅炉有限公司 | Oil burning or gas burning condensing type steam boiler arranged in front smokebox of superheater |
CN104879734A (en) * | 2015-05-26 | 2015-09-02 | 韩来平 | Energy-saving long-acting steam generating device |
CN206247293U (en) * | 2016-12-08 | 2017-06-13 | 张家港威孚热能股份有限公司 | Small gas low-pressure superheated steam generator |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112050187A (en) * | 2020-08-28 | 2020-12-08 | 中船九江锅炉有限公司 | Superheated steam boiler |
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Application publication date: 20170524 |