CN101922787A - Blackbody radiation boiler and manufacturing method thereof - Google Patents
Blackbody radiation boiler and manufacturing method thereof Download PDFInfo
- Publication number
- CN101922787A CN101922787A CN2009100595764A CN200910059576A CN101922787A CN 101922787 A CN101922787 A CN 101922787A CN 2009100595764 A CN2009100595764 A CN 2009100595764A CN 200910059576 A CN200910059576 A CN 200910059576A CN 101922787 A CN101922787 A CN 101922787A
- Authority
- CN
- China
- Prior art keywords
- black matrix
- boiler
- burner hearth
- blackbody radiation
- matrix element
- Prior art date
- 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.)
- Pending
Links
Images
Landscapes
- Radiation Pyrometers (AREA)
Abstract
The invention relates to a boiler, in particular to a blackbody radiation boiler and a manufacturing method thereof, belonging to the boiler manufacturing technical field. The blackbody radiation boiler comprises a hearth which is internally equipped with at least 20 blackbody elements. The blackbody radiation boiler fully utilizes high-quality heat energy in primary heat transfer of the boiler. The boiler has rational design, simple structure, convenient manufacture and use, low cost, high working performance, energy conservation up to 8-12% and reduced fume emission temperature by 25 DEG C, thus being beneficial to fuel ignition to enlarge applicability of fuel, being beneficial to fuel burnout to reduce chemical heat loss of the fuel, strengthening thermal insulation property to be beneficial to restarting after fire cutoff and increasing boiler output, reducing boiler emission to improve environmental protection function, and prolonging service life of a boiler arch to lower maintenance cost. The boiler has a simplified downstream heat energy utilization device, thus saving steel and reducing floor space of the boiler.
Description
Technical field:
The invention belongs to boiler and manufacture method technical field thereof, particularly be a kind of blackbody radiation boiler and manufacture method thereof.
Background technology:
Boiler, the heat energy that in its burner hearth, utilizes combustion of fossil fuel to send, water in heating drum and the water-cooling wall, improve the temperature of water or further make water vapor, last outwards output has the hot water or the steam of uniform temperature and pressure, use as secondary energy sources for the user, boiler has become modern production and the indispensable extraordinary visual plant of life.The kind of boiler is a lot, the common drawback of various boilers is: 1) heat energy is not fully utilized in burner hearth, to the flue gas after the drum heating, when leaving burner hearth diffluence downstream, also carrying a large amount of heats, these are put the high-quality heat energy that the fuel in the burner hearth that has run has just discharged, and in flowing to the process in downstream, fade to the more and more lower residual activity of energy level and devalue! 2) people are in order to improve the existing thermal efficiency of boiler (55～85%), on the path that flue gas is flowed through, set up many devices such as boiler tube bundle, steam superheater, economizer, in the hope of the waste heat that those have been devalued, recycled to the one-level one-level, drop to below 200 ℃ up to exhaust gas temperature, more and more Pang is big, complicated to make the overall structure of boiler, investment strengthens, and operating cost increases.3) improved adaptive capacity to fire coal though the fluidized-bed combustion boiler of international popular takes to strengthen the means of circulating ratio, improved the after-flame degree of coal, NOx generates and is suppressed SO
2Effectively reduce.But component wears such as the separator of this boiler are very serious, often owing to wearing and tearing cause blowing out.4) the accumulation of heat condenser boiler of development in recent years, utilize heat storage type combustion and condensation technology, the exhaust gas temperature that makes boiler is below 60 ℃, the limit that realizes obvious heat of smoke and latent heat reclaims, the thermal efficiency of boiler is improved once again, reach 75～85%, the still UTILIZATION OF VESIDUAL HEAT IN of tracing it to the essence to a great extent remains and has abandoned making full use of upstream high-quality heat energy.Key issue is: should work hard in the first order of thermal energy transfer, the efficiency of combustion of fuel in the burner hearth is further improved, allow radiant heat transfer strengthen more.In the burner hearth of hot-fluid upstream, if can utilize the high-quality heat energy here fully, will be the key that further improves boiler thermal output, adopt intense radiation ordering black matrix boiler just can accomplish this point, and can make the boiler overall structure obtain simplification.
Summary of the invention:
The objective of the invention is provides a kind of blackbody radiation boiler and manufacture method thereof for overcoming the problem of above-mentioned existence.
Technical scheme of the present invention is achieved in that
Blackbody radiation boiler of the present invention comprises burner hearth, and at least 20 black matrix elements are arranged in burner hearth.
The inside and outside surface recombination of above-mentioned black matrix element has intensive treatment layer and infrared coating.
Centre-to-centre spacing between the above-mentioned adjacent black matrix element is 100～280mm, to satisfy the requirement of temperature uniformity.
The shape of above-mentioned black matrix element is the cylindric of top end opening or cavity frustum or their combined shaped.
Above-mentioned black matrix element is fixed on the furnace wall of burner hearth.
Above-mentioned black matrix element is fixed on the forward and backward arch of furnace wall of burner hearth.
The transmit direction of above-mentioned black matrix element faces the heating surface of burner hearth.
The black matrix component carrier that is supported in the burner hearth is arranged in the above-mentioned burner hearth, and the black matrix element is contained on the black matrix component carrier.
The working face of above-mentioned black matrix component carrier faces the heating surface of burner hearth.
The furnace wall of above-mentioned burner hearth, in the face of the drum of burner hearth and the surface recombination of water-cooling wall have the intensive treatment layer, at the surperficial coated of intensive treatment layer infrared coating is arranged.
The manufacture method of above-mentioned blackbody radiation boiler comprises the preparation boiler furnace, also comprises the steps:
1) behind the preparation black matrix element, the black matrix element is placed burner hearth,
2) furnace wall, drum and water-cooling wall are strengthened and infrared processing.
The manufacture method of above-mentioned blackbody radiation boiler, its step 1) is as follows:
With high temperature resistant, flame resistant is washed away, powder and high-temperature agglomerant are drawn in the match of lightweight, anti-rapid heat cycle, after multiple working procedures such as mould molding, air-dry, sintering are made the black matrix element, one by one the black matrix element is bonded on the furnace wall of burner hearth with high-temperature agglomerant, under cold conditions, fix with heat-resisting screw, bonding finishes, and more than the baker to 100 ℃, black matrix element and furnace wall are sintered to one gradually.
The manufacture method of above-mentioned blackbody radiation boiler, its step 1) is as follows:
The black matrix element is contained on the black matrix component carrier, the black matrix component carrier is contained in the burner hearth.
The manufacture method of above-mentioned blackbody radiation boiler, its step 2) as follows:
Carry out intensive treatment on the surface of furnace wall, the drum of facing burner hearth and the surface of water-cooling wall, make the surface recombination reinforcing processing layer, carry out infrared processing, make its surperficial coated infrared coating on the surface of intensive treatment layer.
Blackbody radiation boiler of the present invention is one and is provided with the black matrix element, the boiler that the furnace heating surface blackness has improved.Blackbody radiation boiler is in the burner hearth of the upstream of hot-fluid, and the black matrix element is set, and utilizes the black matrix element to strengthen the effect of radiant heat transfer, in first order heat transfer unit (HTU), improve high-quality heat energy utilization rate,, and make the boiler overall structure obtain simplifying with the thermal efficiency of raising boiler." absolute black body " is that heat energy is transformed into the most effective object of radiant energy, is the ideal concepts of heat absorption and conversion in the physics, and nature reality does not exist.The black matrix element is the result to the technicalization of " absolute black body " notion, is an industrial standard blackbody.The black matrix element is tested through China Testing Technology Institute, and emissivity reaches 0.96 (1078K), becomes the object that heat ray (electromagnetic wave that fuel factor is arranged) is had high-absorbility and high emissivity.The black matrix element has high stability, and is aging, unattenuated, as long as the black matrix element in the burner hearth exists, its performance is time to time change not just.Under the prerequisite that does not change the conventional boiler chamber structure, numerous black matrix elements or black matrix component carrier are set in the burner hearth, increase the blackness of radiant heat transfer area, raising burner hearth.To the inside and outside surface of black matrix element, the furnace wall of burner hearth, the drum of facing burner hearth and the surface recombination reinforcing processing layer of water-cooling wall, surperficial coated infrared coating at the intensive treatment layer, just strengthened black matrix element, furnace wall, drum, water-cooling wall absorbability, and the emissivities of black matrix element have strengthened also to heat.The shape of black matrix component carrier and the space that is mounted adapt, as solid or hollow cylinder, hexahedron and their assembly etc., so that with the black matrix element burner hearth of packing into.The black matrix component carrier is installed in the burner hearth of multitubular boiler, flame and flue gas are when carrying out radiant heat transfer and convection heat transfer' heat-transfer by convection to the drum inwall, and to the heating of black matrix component carrier, the black matrix element on the black matrix component carrier is because of its high-absorbility characteristic, after absorbing union heat build-up amount rapidly, be converted into thermal source.The characteristic of black matrix element performance high radiant rate is to the full wave radiant energy of total length drum radiation: realize convection heat transfer' heat-transfer by convection is converted into radiant heat transfer, improved heat transfer efficiency, strengthen radiation of burner hearth and conduct heat; Change the structure of radiant-energy spectrum in the burner hearth, reduced the heat energy that flue gas is taken away.The black matrix element is installed on the forward and backward arch of chain row boiler, and the installation site of black matrix element makes the just in time fire location of directive coal of heat ray that the black matrix element sends on the face arch, makes the increased functionality of catching fire of face arch; The black matrix element of installing on the rear arch strengthens the heat-insulating property in the relevant area of rear arch, helps restarting after fuel after-flame and boiler short-term are stopped working; The black matrix element is installed on the furnace wall of fluidized-bed combustion boiler dilute-phase zone burner hearth, improves fire box temperature, and Pulverized Coal Combustion Status is improved.Generally speaking, the black matrix element increases the radiant heat transfer area of burner hearth, and the emissivity of burner hearth improves, and fire box temperature is raise.Blackbody radiation boiler is strengthened first order radiant heat transfer, reduces the waste heat of being taken away by flue gas, both can simplify waste-heat recovery device, allow boiler structure become simpler, can reduce the material consumption of boiler specific power again, reduce boiler plant and take up an area of, reduce operating cost, final, realize energy-saving and emission-reduction.
Blackbody radiation boiler of the present invention is in the first order of boiler is conducted heat, and makes full use of high-quality heat energy.This boiler design is reasonable, and is simple in structure, manufacturing, easy to use, with low cost, operating efficiency height; Energy-conservationly reach 8～12%; Exhaust gas temperature reduces by 25 ℃; Be beneficial to fuel fire, enlarged the applicability of fuel; Be beneficial to the fuel after-flame, reduce the chemical heat loss of fuel; Heat-insulating property strengthens, and is beneficial to restarting after the cutoff, and boiler output increases; Boiler emission reduces, and has improved environment-friendly function; Boiler cove boiler cove prolongs service life, has reduced maintenance cost.Downstream heat energy use device is simplified, and has saved steel, has reduced the occupation of land space of boiler.
Description of drawings:
Fig. 1 is the structural representation cutaway view of the black matrix element of blackbody radiation boiler of the present invention.
Fig. 2 is the structural representation cutaway view of black body radiation multitubular boiler of the present invention.
Fig. 3 is the A-A cutaway view of Fig. 2 of blackbody radiation boiler of the present invention.
Fig. 4 is the structural representation cutaway view of black body radiation chain row boiler of the present invention.
Fig. 5 is the structural representation cutaway view of black body radiation fluidized-bed combustion boiler of the present invention.
The specific embodiment:
Embodiment 1: black body radiation multitubular boiler and manufacture method thereof
As shown in Figure 1, 2, 3, black body radiation multitubular boiler of the present invention comprises burner hearth 1, and 20 black matrix elements 2 are arranged in burner hearth 1.
The inside and outside surface recombination of above-mentioned black matrix element 2 has intensive treatment layer 11 and infrared coating 12.
Centre-to-centre spacing between the above-mentioned adjacent black matrix element 2 is 200mm, to satisfy the requirement of temperature uniformity.
The shape of above-mentioned black matrix element 2 is the cylindric of top end opening.
The black matrix component carrier 7 that is supported in the burner hearth 1 is arranged in the above-mentioned burner hearth 1, and black matrix element 2 is contained on the black matrix component carrier 7.
The working face 8 of above-mentioned black matrix component carrier 7 faces the heating surface 6 of burner hearth 1.
3 surfaces, furnace wall of above-mentioned burner hearth 1, in the face of the drum 9 of burner hearth 1 and the surface recombination of water-cooling wall 10 have intensive treatment layer 11, at the surperficial coated of intensive treatment layer 11 infrared coating 12 is arranged.
The manufacture method of above-mentioned blackbody radiation boiler comprises preparation boiler furnace 1, also comprises the steps:
1) behind the preparation black matrix element 2, black matrix element 2 is placed burner hearth 1,
2) furnace wall 3, drum 9 and water-cooling wall 10 are strengthened and infrared processing.
The manufacture method of above-mentioned blackbody radiation boiler, its step 1) is as follows:
With high temperature resistant, flame resistant is washed away, powder and high-temperature agglomerant are drawn in the match of lightweight, anti-rapid heat cycle, after multiple working procedures such as mould molding, air-dry, sintering are made black matrix element 2, one by one black matrix element 2 is bonded on the furnace wall 3 of burner hearth 1 with high-temperature agglomerant, under cold conditions, fix with heat-resisting screw, bonding finishes, and more than the baker to 100 ℃, black matrix element 2 is sintered to one gradually with furnace wall 3.
The manufacture method of above-mentioned blackbody radiation boiler, its step 1) is as follows:
The manufacture method of above-mentioned blackbody radiation boiler, its step 2) as follows:
Intensive treatment is carried out on 3 surface, the drum 9 of facing burner hearth 1 and the surface of water-cooling wall 10 in the furnace wall, makes surface recombination reinforcing processing layer 11, carries out infrared processing on the surface of intensive treatment layer 11, makes its surperficial coated infrared coating 12.
Blackbody radiation boiler of the present invention is one and is provided with black matrix element 2, the boiler that burner hearth 1 heating surface blackness has improved.Blackbody radiation boiler is in 1 li in the burner hearth of the upstream of hot-fluid, and black matrix element 2 is set, and utilizes black matrix element 2 to strengthen the effect of radiant heat transfers, in first order heat transfer unit (HTU), improve high-quality heat energy utilization rate,, and make the boiler overall structure obtain simplifying with the thermal efficiency of raising boiler." absolute black body " is that heat energy is transformed into the most effective object of radiant energy, is the ideal concepts of heat absorption and conversion in the physics, and nature reality does not exist.Black matrix element 2 is the results to the technicalization of " absolute black body " notion, is an industrial standard blackbody.Black matrix element 2 is through China Testing Technology Institute's test, and emissivity reaches 0.96 (1078K), becomes the object that heat ray (electromagnetic wave that fuel factor is arranged) is had high-absorbility and high emissivity.Black matrix element 2 has high stability, and is aging, unattenuated, as long as the black matrix element in the burner hearth 12 exists, its performance is time to time change not just.Under the prerequisite that does not change conventional boiler burner hearth 1 structure, numerous black matrix elements 2 and black matrix component carrier 7 are set to 1 li in burner hearth, increase the blackness of radiant heat transfer area, raising burner hearth 1.To the inside and outside surface of black matrix element 2, the furnace wall 3 of burner hearth 1, the drum 9 of facing burner hearth 1 and the surface recombination reinforcing processing layer 11 of water-cooling wall 10, surperficial coated infrared coating 12 at intensive treatment layer 11, just strengthened the absorbability of black matrix element 2, furnace wall 3, drum 9, water-cooling wall 10 pairs of heats, and the emissivities of black matrix element have strengthened also.The shape of black matrix component carrier 7 and the space that is mounted adapt, as solid or hollow cylinder, hexahedron and their assembly etc., so that with black matrix element 2 burner hearth 1 of packing into.Black matrix component carrier 7 is installed in the burner hearth 1 of multitubular boiler, flame and flue gas are when carrying out radiant heat transfer and convection heat transfer' heat-transfer by convection to drum 9 inwalls, and to 2 heating of black matrix element, black matrix element 2 is because of its high-absorbility characteristic, after absorbing union heat build-up amount rapidly, be converted into thermal source.The characteristic of black matrix element 2 performance high radiant rates is to the full wave radiant energy of total length drum 9 radiation: realize convection heat transfer' heat-transfer by convection is converted into radiant heat transfer, improved heat transfer efficiency, strengthen burner hearth 1 radiant heat transfer; Change the structure of radiant-energy spectrum in the burner hearth 1, reduced the heat energy that flue gas is taken away.Generally speaking, black matrix element 2 increases the radiant heat transfer area of burner hearth 1, and the emissivity of burner hearth 1 improves, and burner hearth 1 temperature is raise.Blackbody radiation boiler is strengthened first order radiant heat transfer, reduces the waste heat of being taken away by flue gas, both can simplify waste-heat recovery device, allow boiler structure become simpler, can reduce the material consumption of boiler specific power again, reduce boiler plant and take up an area of, reduce operating cost, final, realize energy-saving and emission-reduction.
Embodiment 2: black body radiation chain row's boiler and manufacture method thereof
Shown in Fig. 1,4, blackbody radiation boiler of the present invention, the shape that 50 black matrix elements 2, black matrix element 2 are arranged in burner hearth is that the centre-to-centre spacing between cavity frustum, the black matrix element 2 is, black matrix element 2 is fixed by heat-resisting screw on the forward and backward arch 4,5 of 100mm, black matrix element 2 furnace wall 3 that is fixed on burner hearth 1 and is sintered to one, manufacturing and the installation black matrix element 2 with forward and backward arch 4,5 that all the other are all identical with embodiment 1.Black matrix element 2 is installed on the forward and backward arch 4,5 of chain row boiler, and the installation site of black matrix element 2 makes the just in time fire location of directive coal of heat ray that black matrix element 2 sends on the face arch 4, makes the increased functionality of catching fire of face arch 4; The black matrix element of installing on the rear arch 52 strengthens the heat-insulating property in rear arch 5 relevant areas, helps restarting after fuel after-flame and boiler short-term are stopped working.
Embodiment 3: black body radiation fluidized-bed combustion boiler and manufacture method thereof
Shown in Fig. 1,5, blackbody radiation boiler of the present invention, the shape that 100 black matrix elements 2, black matrix element 2 are arranged in burner hearth 1 is that combined shaped, the centre-to-centre spacing between the black matrix element 2 of cylinder and cavity frustum is that all the other are all identical with embodiment 1 280mm, manufacturing and the installation black matrix element 2.Black matrix element 2 is installed on the furnace wall 3 of fluidized-bed combustion boiler dilute-phase zone burner hearth 1, improves burner hearth 1 temperature, and Pulverized Coal Combustion Status is improved.
Claims (14)
1. a blackbody radiation boiler comprises burner hearth (1), and it is characterized in that has at least 20 black matrix elements (2) in burner hearth (1).
2. blackbody radiation boiler according to claim 1 is characterized in that the inside and outside surface recombination of black matrix element (2) has intensive treatment layer (11) and infrared coating (12).
3. blackbody radiation boiler according to claim 1 and 2 is characterized in that the centre-to-centre spacing between the adjacent black matrix element (2) is 100～280mm.
4. blackbody radiation boiler according to claim 1 and 2, the shape that it is characterized in that black matrix element (2) are the cylindric of top end opening or cavity frustum or their combined shaped.
5. blackbody radiation boiler according to claim 1 and 2 is characterized in that black matrix element (2) is fixed on the furnace wall (3) of burner hearth (1).
6. blackbody radiation boiler according to claim 5 is characterized in that black matrix element (2) is fixed on the forward and backward arch (4,5) of furnace wall (3) of burner hearth (1).
7. blackbody radiation boiler according to claim 5 is characterized in that the transmit direction of black matrix element (2) faces the heating surface (6) of burner hearth (1).
8. blackbody radiation boiler according to claim 1 is characterized in that the black matrix component carrier (7) that is supported in the burner hearth (1) is arranged in the burner hearth (1), and black matrix element (2) is contained on the black matrix component carrier (7).
9. blackbody radiation boiler according to claim 8 is characterized in that the working face (8) of black matrix component carrier (7) faces the heating surface (6) of burner hearth (1).
10. blackbody radiation boiler according to claim 1, it is characterized in that in burner hearth (1) furnace wall (3), in the face of the drum (9) of burner hearth (1) and the surface recombination of water-cooling wall (10) have intensive treatment layer (11), at the surperficial coated of intensive treatment layer (11) infrared coating (12) is arranged.
11. the manufacture method of the described blackbody radiation boiler of claim 1 comprises preparation boiler furnace (1), it is characterized in that also comprising the steps:
1) behind the preparation black matrix element (2), black matrix element (2) is placed burner hearth (1),
2) furnace wall (3), drum (9) and water-cooling wall (10) are strengthened and infrared processing.
12. the manufacture method of blackbody radiation boiler according to claim 11 is characterized in that its step 1) is as follows:
Black matrix element (2) is bonded on the furnace wall (3) of burner hearth (1) one by one with high-temperature agglomerant, under cold conditions, fixes with heat-resisting screw, bonding finishes, and baker is as for more than 100 ℃, and black matrix element (2) is sintered to one gradually with furnace wall (3).
13. the manufacture method of blackbody radiation boiler according to claim 11 is characterized in that step 1) is as follows:
Black matrix element (2) is contained on the black matrix component carrier (7), black matrix component carrier (7) is contained in the burner hearth (1).
14. the manufacture method of blackbody radiation boiler according to claim 11 is characterized in that step 2) as follows:
Intensive treatment is carried out on the surface of (3), the drum (9) of facing burner hearth (1) and the surface of water-cooling wall (10) in the furnace wall, make surface recombination reinforcing processing layer (11), infrared processing is carried out on surface at intensive treatment layer (11), makes its surperficial coated infrared coating (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100595764A CN101922787A (en) | 2009-06-12 | 2009-06-12 | Blackbody radiation boiler and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100595764A CN101922787A (en) | 2009-06-12 | 2009-06-12 | Blackbody radiation boiler and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101922787A true CN101922787A (en) | 2010-12-22 |
Family
ID=43337871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100595764A Pending CN101922787A (en) | 2009-06-12 | 2009-06-12 | Blackbody radiation boiler and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101922787A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012174735A1 (en) * | 2011-06-24 | 2012-12-27 | 北京中太投资管理有限公司 | Energy-saving cone and furnace |
| CN107478061A (en) * | 2017-09-20 | 2017-12-15 | 上海贺力液压机电有限公司 | Black matrix strengthens radiant heat transfer energy-saving heating furnace and its method of construction |
-
2009
- 2009-06-12 CN CN2009100595764A patent/CN101922787A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012174735A1 (en) * | 2011-06-24 | 2012-12-27 | 北京中太投资管理有限公司 | Energy-saving cone and furnace |
| CN107478061A (en) * | 2017-09-20 | 2017-12-15 | 上海贺力液压机电有限公司 | Black matrix strengthens radiant heat transfer energy-saving heating furnace and its method of construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105157012B (en) | A kind of gas fired-boiler for being used to overheat external steam | |
| CN105757977A (en) | Environment-friendly and energy-saving hot-blast furnace and use method thereof | |
| CN102620274B (en) | Horizontal oil-fired and gas-fired efficient energy-saving boiler | |
| CN201412942Y (en) | Black body radiation boiler | |
| CN207455887U (en) | A kind of return-stroke type wall-hung boiler | |
| CN101672523B (en) | Cyclone composite heat-exchange dedusting smokeless boiler | |
| CN101922787A (en) | Blackbody radiation boiler and manufacturing method thereof | |
| CN205316287U (en) | Steam system suitable for power station boiler with steam parameter of 700 ℃ grade and above | |
| CN201522091U (en) | Horizontal flashback coal burning boiler | |
| CN103673282A (en) | Whole wet back horizontal type normal pressure fuel oil hot-water boiler with flame returning in center | |
| CN202853122U (en) | Waste heat recycling system of thermal oil furnace | |
| CN201508036U (en) | Direct-combustion tube-typed split organic heat carrier boiler | |
| CN104727976A (en) | Combustion heating system for Stirling engine | |
| CN201731618U (en) | Horizontal shell-type boiler | |
| CN204739561U (en) | Four return stroke fuel gas steam boiler | |
| CN208365509U (en) | A kind of DHS corner tube type fuel-firing gas-firing steam boiler | |
| CN101886805B (en) | Arrangement method of tower-type boiler high-temperature reheater container system | |
| CN207279585U (en) | A kind of the quick of internal heater starts water pipe steam boiler | |
| CN105627283A (en) | Steam system suitable for power station boiler with steam parameter of 700 ℃ grade and above | |
| CN201615597U (en) | Hot blast furnace | |
| CN205606894U (en) | Environmental protection and energy saving hot -blast furnace | |
| CN203099789U (en) | Yellow phosphorus tail gas boiler supporting burning of multiple fuels | |
| CN220397842U (en) | Split type gas hot water boiler | |
| CN201497015U (en) | Heating furnace | |
| CN216431784U (en) | Heat carrier heating furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20101222 |