CN109668136A - Boiler residual-heat utilization structure - Google Patents
Boiler residual-heat utilization structure Download PDFInfo
- Publication number
- CN109668136A CN109668136A CN201710959531.7A CN201710959531A CN109668136A CN 109668136 A CN109668136 A CN 109668136A CN 201710959531 A CN201710959531 A CN 201710959531A CN 109668136 A CN109668136 A CN 109668136A
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- CN
- China
- Prior art keywords
- heat
- boiler body
- boiler
- insulation shell
- collector cavity
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/08—Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Supply (AREA)
Abstract
The present invention provides a kind of boiler residual-heat utilization structure, and a kind of boiler residual-heat utilization structure, in the bottom of boiler body, the top of heating device is equipped with heat collector cavity, is equipped with heat-conducting medium in heat collector cavity internal cavity；Heat collector cavity is connected to at least one heat exchanger tube, and heat exchanger tube passes through boiler body and is connected to circulation pipe, and circulation pipe is connected to heat collector cavity, and circulation pipe is equipped with circulating pump；It is additionally provided with insulation shell in the periphery of boiler body and heating device, the top of insulation shell is equipped with air-exhausting duct；Air-exhausting duct is equipped with exhaust fan；Gap between boiler body and insulation shell is equipped with surplus heat collection device；The surplus heat collection device is the multiple absorber plates arranged from top to bottom along boiler body outer wall, and the multiple flow-stopping plates arranged from top to bottom along insulation shell inner wall, flow-stopping plate and absorber plate interlaced arrangement are at labyrinth structure.By the structure of the insulation shell of setting, absorber plate and flow-stopping plate, the waste heat that heating device burning generates can make full use of.
Description
Technical field
The present invention relates to boiler plant field, especially a kind of boiler residual-heat utilization structure.
Background technique
Existing boiler plant is using heating devices heat boiler body so that the intracorporal water heating of boiler generates water and steams
Vapour.With the raising of rise and the environmental requirement of energy prices, needs to reduce carbon emission and improve efficiency of energy utilization.
101871688 A of Chinese patent literature CN describes a kind of heat conduit boiler, and this heat conduit boiler includes cylinder
Shape shell and the tubular flue being set to inside shell form furnace body water cavity, are formed inside flue between the flue and shell
A water box is arranged on the top of burner hearth in burner hearth, and the inner cavity of the water box is connected to by connecting tube with furnace body water cavity；Flue
Several heat pipes are respectively set in top；Every heat pipe is open at one end in furnace body water cavity, and the other end is cecum and stretches to furnace downwards
Thorax；The boiler heating surface is big, heat transfer is concentrated rapidly.But the shape and structure difficulty of processing of the boiler is big, voltage endurance capability compared with
Difference, and the heat losses of boiler are larger, the burner exhaust heat recycling of burner is insufficient.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of boiler residual-heat utilization structures, can simplify heat conduit boiler
Difficulty of processing, lower production cost, in preferred scheme, can make full use of the burner exhaust heat of burner, and can be realized
The intelligentized control method of energy-saving and environmental protection and safety.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: a kind of boiler residual-heat utilization structure, including
Boiler body, it is characterized in that: in the bottom of boiler body, the top of heating device is equipped with heat collector cavity, is equipped in heat collector cavity internal cavity
Heat-conducting medium；Heat collector cavity is connected to at least one heat exchanger tube, and heat exchanger tube passes through boiler body and is connected to circulation pipe, circulation pipe and thermal-arrest
Chamber connection, circulation pipe are equipped with circulating pump；Insulation shell, the top of insulation shell are additionally provided in the periphery of boiler body and heating device
Portion is equipped with air-exhausting duct；Air-exhausting duct is equipped with exhaust fan；Gap between boiler body and insulation shell is equipped with surplus heat collection device；
The surplus heat collection device is the multiple absorber plates arranged from top to bottom along boiler body outer wall, along insulation shell inner wall from
Multiple flow-stopping plates of top to bottm arrangement, flow-stopping plate and absorber plate interlaced arrangement are at labyrinth structure.
In preferred scheme, the absorber plate is Heat Conduction Material, and flow-stopping plate is heat-barrier material.
In preferred scheme, graphite thermal conductive layer is equipped in boiler body outer wall.
A kind of boiler residual-heat utilization structure provided by the invention, passes through the insulation shell of setting, absorber plate and flow-stopping plate
Structure can make full use of the waste heat that heating device burning generates.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is overall structure diagram of the invention.
In figure: insulation shell 1, circulation pipe 2, circulating pump 3, manifold trunk 4, absorber plate 5, flow-stopping plate 6, inlet valve 7, boiler body
8, heat exchanger tube 9, safety valve 10, heat collector cavity 11, heating device 12, exhaust fan 13, air-exhausting duct 14, master control set 15, drain valve 16.
Specific embodiment
As shown in figure 1, a kind of boiler residual-heat utilization structure, including boiler body 8, it is characterized in that: adding in the bottom of boiler body 8
The top of thermal 12 is equipped with heat collector cavity 11, is equipped with heat-conducting medium in 11 internal cavity of heat collector cavity；
Heat collector cavity 11 is connected to at least one heat exchanger tube 9, and heat exchanger tube 9 passes through boiler body 8 and is connected to circulation pipe 2, circulation pipe 2 and collection
Hot chamber 11 is connected to, and circulation pipe 2 is equipped with circulating pump 3；
It is additionally provided with insulation shell 1 in the periphery of boiler body 8 and heating device 12, the top of insulation shell 1 is equipped with air-exhausting duct 14；This
Insulation shell 1 in example is preferably using the guarantor of vacuum heat-preserving the shell perhaps insulation shell of pearl cotton interlayer or asbestos interlayer
Warm shell.
Air-exhausting duct 14 is equipped with exhaust fan 13；
Gap between boiler body 8 and insulation shell 1 is equipped with surplus heat collection device；
The surplus heat collection device is the multiple absorber plates 5 arranged from top to bottom along 8 outer wall of boiler body, along insulation shell
Multiple flow-stopping plates 6 that 1 inner wall is arranged from top to bottom, flow-stopping plate 6 and 5 interlaced arrangement of absorber plate are at labyrinth structure.
Heating device 12 is using gasification diesel fuel burner, neat gas burner or water Hydrogen fuel combustion device in this example.This example
In heat-conducting medium use conduction oil, preferably use hydrogenation synthesis conduction oil.Flash-point is high, is not less than 215 DEG C, and freezing point is not low
In -15 DEG C.Self-ignition point is high, is not less than 360 DEG C.Organic impurities is few, and sulphur, nitrogen, hydrogen, chlorine content of beary metal are few, only only 20ppm.
Thermal stability is high, and the service life is long, under equal conditions uses, and the service life is 4-5 longer than mineral oil conduction oil.It is not easy to produce in use process
Anger bubble.Without water-soluble soda acid.Do not corrode equipment.The main component of hydrogenation synthesis conduction oil is saturated alkane, aromatic hydrocarbons.It can be on mountain
The purchase of Dong Yingkeli Chemical Co., Ltd..
As shown in figure 1, the heat collector cavity 11 forms side wall by more ring-types or spiral helicine metal tube to preferred scheme, collection
The top of hot chamber 11 is the bottom of boiler body 8, and the bottom of heat collector cavity 11 is open.
In preferred scheme, the side wall of the heat collector cavity 11 is made of closed metal cavitg, the top of heat collector cavity 11
Bottom for the bottom of boiler body 8, heat collector cavity 11 is open.Thus structure is greatly reduced the difficulty of processing of boiler body 8, also ensures that
The bearing capacity of boiler body 8.
In preferred scheme, heat collector cavity 11 is connected to by adapter with three-way connection with more heat exchanger tubes 9, more heat exchanger tubes
9 are connected to the manifold trunk 4 for being located at the top of boiler body 8, and manifold trunk 4 is connect with the entrance of circulating pump 3, the outlet of circulating pump 3 with follow
Endless tube 2 connects, and circulation pipe 2 is connected to heat collector cavity 11.Thus structure makes heat-conducting medium forced circulation by circulating pump 3, further
Improve heat transfer efficiency.
In preferred scheme, the absorber plate 5 is Heat Conduction Material, such as metal plate or graphite plate, and flow-stopping plate 6 is heat-insulated
Material, such as refractory slab.Thus structure fully absorbs the heat in combustion product gases by absorber plate 5.
In preferred scheme, graphite thermal conductive layer is equipped in 8 outer wall of boiler body.Thus structure inhales 8 outer wall of boiler body sufficiently
Receive heat.
In preferred scheme, temperature sensor, pressure sensor and water level sensor are equipped in boiler body 8；
It is equipped with waste heat sensor in air-exhausting duct 14, is equipped with thermally conductive sensor in circulation pipe 2；
Automatically controlled inlet valve 7 and drain valve 16 are equipped on boiler body 8；
The input of temperature sensor, pressure sensor, water level sensor, waste heat sensor and thermally conductive sensor and master control set 15
End electrical connection, inlet valve 7, drain valve 16, circulating pump 3, exhaust fan and heating device 12 and the output end of master control set 15 are electrically connected
It connects.Thus structure realizes the automation control of entire boiler.Master control set 15 in this example uses industrial personal computer or single-chip microcontroller.It is logical
The feedback of excess temperature sensor, the starting of master control set 15 or closing heating device 12 and exhaust fan.Pass through water level sensor and temperature
The combination feedback of sensor is spent, master control set 15 opens or closes inlet valve 7 and/or drain valve 16.Pass through waste heat sensor pair
The feedback of hot blast temperature is discharged, master control set 15 adjusts the revolving speed of exhaust fan, sufficiently to collect and utilize waste heat.Pass through thermally conductive biography
Sensor is to the feedback of heat-conducting medium temperature, and master control set 15 adjusts the speed of circulating pump 3, sufficiently to improve heat transfer efficiency.
By using the combination of above-mentioned optimal scheme, temperature that the present invention is measured in 13 position of exhaust fan according to different operating conditions
Degree is only 65 DEG C ~ 130 DEG C, and heat utilization ratio is higher.It is and common for producing 30 cubic metres of saturated vapors under same load
Boiler is compared, energy consumption decline 25 ~ 36%, and for 150 cubic metres of production consumption quantity of steam averagely full-time, monthly energy consumption decline is high
Up to 35 ~ 42%.Instantaneous heat quantity utilization efficiency i.e. of the invention is higher, and long-term heat loss is lower, and initial guess is due to heat preservation
The presence of shell 1, reduces heat loss, and therefore, heating time needed for being again started up boiler for producing steam is reduced.Due to intelligence
Energyization controls equipment delay installation, and data, intelligentized control method also can reduce energy consumption 3 ~ 5% after actual measurement.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as limitation of the invention, this hair
Bright protection scope should be with the technical solution of claim record, technical characteristic in the technical solution recorded including claim
Equivalents are protection scope.Equivalent replacement i.e. within this range is improved, also within protection scope of the present invention.
Claims (3)
1. a kind of boiler residual-heat utilization structure, including boiler body (8), it is characterized in that: in the bottom of boiler body (8), heating device
(12) top is equipped with heat collector cavity (11), and heat-conducting medium is equipped in heat collector cavity (11) internal cavity；
Heat collector cavity (11) is connected to at least one heat exchanger tube (9), and heat exchanger tube (9) passes through boiler body (8) and is connected to circulation pipe (2),
Circulation pipe (2) is connected to heat collector cavity (11), and circulation pipe (2) is equipped with circulating pump (3)；
It is additionally provided with insulation shell (1) in the periphery of boiler body (8) and heating device (12), the top of insulation shell (1) is equipped with row
Air hose (14)；
Air-exhausting duct (14) is equipped with exhaust fan (13)；
Gap between boiler body (8) and insulation shell (1) is equipped with surplus heat collection device；
The surplus heat collection device is the multiple absorber plates (5) arranged from top to bottom along boiler body (8) outer wall, along heat preservation
Multiple flow-stopping plates (6) that shell (1) inner wall is arranged from top to bottom, flow-stopping plate (6) are tied with absorber plate (5) interlaced arrangement at labyrinth
Structure.
2. a kind of boiler residual-heat utilization structure according to claim 1, it is characterized in that: the absorber plate (5) is thermally conductive
Material, flow-stopping plate (6) are heat-barrier material.
3. a kind of boiler residual-heat utilization structure according to claim 1, it is characterized in that: being equipped with stone in boiler body (8) outer wall
Black heat-conducting layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710959531.7A CN109668136A (en) | 2017-10-16 | 2017-10-16 | Boiler residual-heat utilization structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710959531.7A CN109668136A (en) | 2017-10-16 | 2017-10-16 | Boiler residual-heat utilization structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109668136A true CN109668136A (en) | 2019-04-23 |
Family
ID=66139688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710959531.7A Pending CN109668136A (en) | 2017-10-16 | 2017-10-16 | Boiler residual-heat utilization structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN109668136A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631384A (en) * | 2019-09-25 | 2019-12-31 | 昆山津利源厨房设备有限公司 | Energy-saving heat-absorbing heat-preserving furnace liner |
-
2017
- 2017-10-16 CN CN201710959531.7A patent/CN109668136A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631384A (en) * | 2019-09-25 | 2019-12-31 | 昆山津利源厨房设备有限公司 | Energy-saving heat-absorbing heat-preserving furnace liner |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190423 |
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| WD01 | Invention patent application deemed withdrawn after publication |