CN210107460U - Boiler using municipal refuse and sludge as fuel - Google Patents
Boiler using municipal refuse and sludge as fuel Download PDFInfo
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- CN210107460U CN210107460U CN201920843946.2U CN201920843946U CN210107460U CN 210107460 U CN210107460 U CN 210107460U CN 201920843946 U CN201920843946 U CN 201920843946U CN 210107460 U CN210107460 U CN 210107460U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Abstract
The utility model discloses use municipal refuse and mud as the boiler of fuel, its characterized in that: the boiler comprises a boiler furnace, a wall-wrapped membrane wall low-temperature superheater and a steam drum, wherein a U-shaped flue gas channel is arranged in the wall-wrapped membrane wall low-temperature superheater, a screen type medium-temperature superheater and a coiled pipe low-temperature superheater are sequentially arranged in the flue gas channel, the screen type high-temperature superheater is arranged in the boiler furnace, and a steam outlet end of the steam drum is sequentially connected with superheater tubes located on the wall-wrapped membrane wall low-temperature superheater, the coiled pipe low-temperature superheater, the screen type medium-temperature superheater and the screen type high-temperature superheater. The utility model provides its acting capacity at the steam turbine is improved, makes the thermal efficiency that circulates can improve.
Description
The technical field is as follows:
the utility model relates to a boiler using municipal refuse and sludge as fuel.
Background art:
the urban garbage and sludge have high alkali metal (potassium and sodium) content, and the urban garbage and sludge have high chlorine content such as plastics, which all cause the serious corrosion problem of the urban garbage and sludge boiler high-temperature superheater. The corrosion type of the urban garbage and sludge boiler high-temperature superheater is mainly high-temperature fusion corrosion of alkali metal chloride, and the urban garbage and sludge boiler high-temperature superheater has a typical corrosion temperature interval. Namely when the steam temperature of the superheater pipeline is less than 450 ℃ (the temperature of the pipe wall is less than 480 ℃), the corrosion can be ignored; when the steam temperature is 490-520 ℃, the corrosion rate is increased; when the steam temperature is more than 520 deg.c, the corrosion rate increases very rapidly. Therefore, in the conventional thermodynamic cycle system of the municipal waste and sludge power station, the temperature of main steam is mostly selected to be below 450 ℃ to ensure the safety of a superheater pipe, so that the initial temperature and the initial pressure of the steam in the Rankine cycle are greatly limited, and the thermal efficiency of the Rankine cycle is artificially reduced. Or after the initial parameters of the steam are improved, a superheater tube made of materials above P91 is selected, or the corrosion is prevented by methods such as metal spraying, but the operation period can only be properly prolonged, and the corrosion problem cannot be fundamentally solved.
The invention content is as follows:
therefore, the utility model aims at providing an use municipal refuse and mud as the boiler of fuel promptly, this use municipal refuse and mud be the boiler simple structure of fuel, reasonable in design, be favorable to solving the problem that municipal refuse and mud boiler high temperature over heater corrode, improve the thermal efficiency of circulation in power station simultaneously.
The utility model discloses use municipal refuse and mud as the boiler of fuel, its characterized in that: the boiler comprises a boiler furnace, a wall-wrapped membrane wall low-temperature superheater connected with the boiler furnace, and a steam pocket arranged outside the boiler furnace, wherein a U-shaped flue gas channel is arranged in the wall-wrapped membrane wall low-temperature superheater, a screen type medium-temperature superheater and a coiled pipe low-temperature superheater are sequentially arranged in the flue gas channel, a screen type high-temperature superheater is arranged in the boiler furnace, and a steam outlet end of the steam pocket is sequentially connected with superheater tubes positioned on the wall-wrapped membrane wall low-temperature superheater, the coiled pipe low-temperature superheater, the screen type medium-temperature superheater and the screen type high-temperature superheater; the screen type medium temperature superheater and the screen type high temperature superheater both comprise steel pipes and flat steel sheets radially arranged on the steel pipes, and the peripheries of the flat steel sheets are provided with refractory sintering materials in which heat-resistant steel bars are embedded.
Further, the superheater tubes comprise a first group of superheater tubes positioned on the wrapped-wall film-wall low-temperature superheater, a second group of superheater tubes positioned on the serpentine-tube low-temperature superheater, a third group of superheater tubes positioned on the platen medium-temperature superheater and a fourth group of superheater tubes positioned on the platen medium-temperature superheater.
Furthermore, the superheater tubes on the wall-wrapped membrane wall low-temperature superheater, the coiled tube low-temperature superheater, the screen type medium-temperature superheater and the screen type high-temperature superheater are formed by arranging a plurality of tube bodies, and a box body integrating the plurality of tube bodies is arranged at the inlet end and the outlet end of each tube body to be connected, so that an inlet header or an outlet header is formed.
Furthermore, the steam inlet end of the first group of superheater tubes is connected with the steam outlet end of the steam drum, the steam outlet end of the first group of superheater tubes is connected with the steam inlet end of the second group of superheater tubes, the steam outlet end of the second group of superheater tubes is connected with the steam inlet end of the third group of superheater tubes, and the steam outlet end of the third group of superheater tubes is connected with the steam inlet end of the fourth group of superheater tubes; and the steam outlet end of the fourth group of superheater tubes is connected with a steam turbine, and the output end of the steam turbine is connected with a generator.
Furthermore, a first-stage water spraying temperature reduction device is arranged at the steam outlet end of the second group of superheater tubes.
Furthermore, a secondary water spraying temperature reduction device is arranged at the steam outlet end of the third group of superheater tubes.
Furthermore, the wall-wrapped membrane wall low-temperature superheater is arranged on a furnace wall on the smoke descending side of the U-shaped flue, the screen type medium-temperature superheater is arranged on the smoke descending side of the U-shaped flue, and the coiled pipe low-temperature superheater is arranged on the smoke ascending side of the U-shaped flue.
Furthermore, the fire-facing surface of the wall-wrapping membrane wall low-temperature superheater is laid by adopting a refractory castable.
Furthermore, the flue gas inlet end of the wall-wrapped membrane wall low-temperature superheater is connected with a boiler furnace, the flue gas outlet end of the wall-wrapped membrane wall low-temperature superheater is connected with a tail flue, a coal economizer is arranged in the tail flue, one end of the coal economizer is a water supply end, and the other end of the coal economizer is connected with the water inlet end of the steam drum.
The utility model relates to a working method of a boiler using municipal refuse and sludge as fuel, the boiler using the municipal refuse and sludge as fuel comprises a boiler furnace and a wall-wrapping membrane wall low-temperature superheater connected with the boiler furnace, and a steam pocket arranged outside the boiler furnace, a U-shaped flue gas channel is arranged in the wall-wrapped membrane wall low-temperature superheater, a screen type medium temperature superheater and a coiled pipe low temperature superheater are sequentially arranged in the flue gas channel, a screen type high temperature superheater is arranged in the boiler furnace, the steam outlet end of the steam drum is sequentially connected with superheater tubes on a wall-wrapping membrane wall low-temperature superheater, a coiled pipe low-temperature superheater, a screen type medium-temperature superheater and a screen type high-temperature superheater, the screen type medium temperature superheater and the screen type high temperature superheater both comprise steel pipes and flat steel sheets radially arranged on the steel pipes, and a refractory sintering material with heat-resistant steel bars embedded therein is arranged on the peripheries of the flat steel sheets; the flue gas inlet end of the wall-wrapped membrane type wall low-temperature superheater is connected with a boiler furnace; when the steam turbine works, high-pressure steam output from the steam outlet end of the steam drum sequentially enters the superheater tubes on the wall-covered membrane wall low-temperature superheater, the coiled tube low-temperature superheater, the screen intermediate-temperature superheater and the screen high-temperature superheater, and finally, the high-pressure steam output from the superheater tubes is input into the steam turbine, and the steam turbine drives the generator to act.
The utility model has the advantages that: the superheated steam pressure of the municipal waste and sludge boiler is increased, and the temperature of the municipal waste and sludge boiler is increased, so that the superheated steam pressure is matched with the temperature, the acting capacity of the municipal waste and sludge boiler in a steam turbine is improved, and the circulating heat efficiency is improved; in addition, the superheater adopts a wall-wrapped membrane type wall structure type, the wall-wrapped membrane type wall structure type is laid by adopting a refractory castable to the fire surface, the heat of the flue gas is conducted to the superheater tube through the refractory castable, so that the corrosive high-temperature flue gas is isolated from the metal outer wall of the high-temperature superheater tube, the corrosion of the tube wall of the high-temperature superheater is avoided, and meanwhile, the circulating heat efficiency is improved due to the improvement of the steam temperature.
Description of the drawings:
FIG. 1 is a schematic structural diagram of an embodiment of a boiler using municipal waste and sludge as fuel according to the present invention;
FIG. 2 is the cross-sectional structure diagram of the screen type high temperature superheater and the screen type medium temperature superheater of the present invention.
The specific implementation mode is as follows:
the method of the present invention will be described in further detail with reference to examples. It should be noted that the protection scope of the present invention should include, but not be limited to, the technical content disclosed in the present embodiment.
The utility model discloses a boiler that uses municipal refuse and mud as fuel includes boiler furnace 1 and the package wall diaphragm wall low temperature over heater 2 of being connected with boiler furnace 1, package wall diaphragm wall low temperature over heater can be cuboid or other dysmorphism form, and the superheater pipe on the package wall diaphragm wall low temperature over heater can be laid in ways such as surface or spiral parallelly and lay equally, and establish the steam pocket 3 outside boiler furnace (the steam pocket is current equipment, it is in the water pipe boiler and is used for steam-water separation and steam purification, the cylindric pressure vessel who constitutes water circulation return circuit and save pot water, the main function is for accepting the economizer water that comes, carries out steam-water separation and supplies water to circulation return circuit, carries saturated steam to the over heater), be equipped with U-shaped flue gas channel 4 in the package wall diaphragm wall low temperature over heater, the flue gas channel of U-shaped of this application embodiment, certainly can also be other U-shaped, a screen type medium-temperature superheater 5 and a coiled pipe low-temperature superheater 6 are sequentially arranged in the flue gas channel 4, a screen type high-temperature superheater 7 is arranged in the boiler furnace 1, and a steam outlet end A1 of the steam drum 3 is sequentially connected with superheater pipes which are positioned on the wall-wrapped membrane type wall low-temperature superheater 2, the coiled pipe low-temperature superheater 6, the screen type medium-temperature superheater 5 and the screen type high-temperature superheater 7; the superheater tubes fully absorb the heat on the wall surface of the wall-wrapped membrane type wall low-temperature superheater 2, the heat of the coiled tube low-temperature superheater 6, the screen type medium-temperature superheater 5 and the screen type high-temperature superheater 7, so that the heat energy is fully utilized, the acting capacity of a connected steam turbine is improved, and the circulating heat efficiency is improved; the screen type medium temperature superheater 5 and the screen type high temperature superheater 7 respectively comprise a steel pipe 9 and flat steel sheets 10 which are radially distributed (uniformly distributed or irregularly distributed) on the steel pipe, a refractory fire-injected material 12 with heat-resistant steel bars 11 embedded in the periphery of each flat steel sheet is arranged, the heat of smoke is conducted to the superheater pipes through the refractory fire-injected material by the design, the corrosive high temperature smoke is isolated from the metal outer walls of the high temperature superheater pipes, and therefore the corrosion of the pipe walls of the high temperature superheater is avoided, the circulating heat efficiency is improved due to the improvement of the steam temperature, and the steel pipe 9, the flat steel sheets 10 and the heat-resistant steel bars 11 are made of heat-resistant and corrosion-resistant.
Further, for reasonable design, the superheater tubes include a first group of superheater tubes located on the wall-wrapped diaphragm wall low-temperature superheater, a second group of superheater tubes located on the serpentine tube low-temperature superheater, a third group of superheater tubes located on the screen type medium-temperature superheater and a fourth group of superheater tubes located on the screen type medium-temperature superheater, the superheater tubes located on the wall-wrapped diaphragm wall low-temperature superheater, the screen type medium-temperature superheater and the screen type high-temperature superheater are formed by arranging a plurality of tube bodies, and a box body integrating a plurality of tube bodies is connected at the inlet end and the outlet end of each tube body to form an inlet header or an outlet header, so that the wall-wrapped diaphragm wall low-temperature superheater inlet header A2, the wall-wrapped diaphragm wall low-temperature outlet header A3, the serpentine tube low-temperature superheater inlet header A4 and the serpentine tube low-temperature outlet header A5 are shown in the figure, The system comprises a platen medium temperature superheater inlet header A6, a platen medium temperature superheater outlet header A7, a platen high temperature superheater inlet header A8 and a platen high temperature superheater outlet header A9.
The steam inlet end (or called a wrapper wall film wall low-temperature superheater inlet header A2) of the first group of superheater tubes is connected with the steam outlet end A1 of the steam drum, the steam outlet end (or called a wrapper wall film wall low-temperature superheater outlet header A3) of the first group of superheater tubes is connected with the steam inlet end (or called a serpentine tube low-temperature superheater inlet header A4) of the second group of superheater tubes, the steam outlet end (or called a serpentine tube low-temperature superheater outlet header A5) of the second group of superheater tubes is connected with the steam inlet end (or called a screen medium-temperature superheater inlet header A6) of the third group of superheater tubes, and the steam outlet end (or called a screen medium-temperature superheater outlet header A7) of the third group of superheater tubes is connected with the steam inlet end (or called a screen high-temperature superheater inlet header A8) of the fourth group of superheater tubes; the steam outlet end (or called a platen high-temperature superheater outlet header A9) of the fourth group of superheater tubes is connected with a steam turbine 13, and the output end of the steam turbine is connected with a generator 14.
Further, in order to adjust the temperature conveniently, a first-stage water spray temperature reducing device 15 is arranged at the steam outlet end of the second group of superheater tubes, a second-stage water spray temperature reducing device 16 is arranged at the steam outlet end of the third group of superheater tubes, the first-stage water spray temperature reducing device 15 and the second-stage water spray temperature reducing device 16 can be spray heads which directly spray the steam outlet end, or cooling water jackets which cover the outside of the steam outlet end tubes, the first-stage water spray temperature reducing device 15 and the second-stage water spray temperature reducing device 16 can be opened and closed according to the temperature requirement, and the device for controlling the opening and closing can be a temperature control valve, namely, the first-stage water spray temperature reducing device 15 and the second-stage water spray temperature reducing device 16 can be even when the preset high temperature.
Furthermore, in order to fully utilize heat, a partition wall 17 is vertically arranged in the wall-wrapped film wall low-temperature superheater from top to bottom, the screen type medium-temperature superheater is arranged on one side, close to the boiler furnace, of the partition wall, the coiled tube low-temperature superheater is arranged on one side, far away from the boiler furnace, of the partition wall, and due to the use of the partition wall 17, a U-shaped flue gas channel 4 is generated in the wall-wrapped film wall low-temperature superheater; the embodiment of the application is a U-shaped smoke channel, and other types of smoke channels can be adopted.
Furthermore, in order to improve the fireproof effect, the fire-facing surface of the wall-covered membrane wall low-temperature superheater is laid by adopting a fireproof casting material, the screen type high-temperature superheater is hung at the upper part of a boiler furnace, the screen type high-temperature superheater is formed by welding a steel pipe and radially and uniformly distributed fins (flat steel sheets), heat-resistant reinforcing steel bars are welded on two sides of the fins, and the whole body is laid by the fireproof casting material to form a cuboid or other shapes.
Further, for reasonable design, the flue gas inlet end of the wall-wrapped membrane wall low-temperature superheater is connected with the boiler furnace through a flue 18; the flue gas outlet end of the wall-wrapped membrane wall low-temperature superheater is connected with a tail flue 19, the tail flue 19 can be a cylindrical body, a coal economizer 20 is arranged in the tail flue, one end of the coal economizer is a water supply end 21, the other end of the coal economizer is connected with a water inlet end 22 of the steam pocket, and the coal economizer is arranged in the tail flue 19, so that water input from the water supply end 21 of the coal economizer can be heated, and the energy-saving effect is realized.
The utility model relates to a working method of a boiler using municipal refuse and sludge as fuel, the boiler using the municipal refuse and sludge as fuel comprises a boiler furnace and a wall-wrapping membrane wall low-temperature superheater connected with the boiler furnace, and a steam pocket arranged outside the boiler furnace, a U-shaped flue gas channel is arranged in the wall-wrapped membrane wall low-temperature superheater, a screen type medium temperature superheater and a coiled pipe low temperature superheater are sequentially arranged in the flue gas channel, a screen type high temperature superheater is arranged in the boiler furnace, the steam outlet end of the steam drum is sequentially connected with superheater tubes on a wall-wrapping membrane wall low-temperature superheater, a coiled pipe low-temperature superheater, a screen type medium-temperature superheater and a screen type high-temperature superheater, the screen type medium temperature superheater and the screen type high temperature superheater both comprise steel pipes and flat steel sheets radially arranged on the steel pipes, and a refractory sintering material with heat-resistant steel bars embedded therein is arranged on the peripheries of the flat steel sheets; when the steam turbine works, high-pressure steam output from the steam outlet end of the steam drum sequentially enters the superheater tubes on the wall-covered membrane wall low-temperature superheater, the coiled tube low-temperature superheater, the screen intermediate-temperature superheater and the screen high-temperature superheater, and finally, the high-pressure steam output from the superheater tubes is input into the steam turbine, and the steam turbine drives the generator to act. The flue gas is output from the boiler furnace, and the U-shaped flue and the tail flue are arranged in sequence.
The utility model has the advantages that: the superheated steam pressure of the municipal waste and sludge boiler is increased, and the temperature of the municipal waste and sludge boiler is increased, so that the superheated steam pressure is matched with the temperature, the acting capacity of the municipal waste and sludge boiler in a steam turbine is improved, and the circulating heat efficiency is improved; in addition, the superheater adopts a wall-wrapped membrane type wall structure type, the wall-wrapped membrane type wall structure type is laid by adopting a refractory castable to the fire surface, the heat of the flue gas is conducted to the superheater tube through the refractory castable, so that the corrosive high-temperature flue gas is isolated from the metal outer wall of the high-temperature superheater tube, the corrosion of the tube wall of the high-temperature superheater is avoided, and meanwhile, the circulating heat efficiency is improved due to the improvement of the steam temperature.
An outlet A1 at the top of the boiler drum is communicated with an inlet header A2 of a wall-wrapped film wall low-temperature superheater, a U-shaped channel is arranged in the low-temperature wall-wrapped film wall superheater along the flue gas flow path, an outlet header A3 of the wall-wrapped film wall low-temperature superheater is communicated with an inlet header A4 of a coiled pipe low-temperature superheater, an outlet header A5 of the coiled pipe low-temperature superheater is communicated with an inlet header A6 of a screen type medium-temperature superheater, a primary water spraying temperature reducing device is arranged on the outlet header of the coiled pipe low-temperature superheater, the screen type medium-temperature superheater is hung on the flue gas descending section of the U-shaped channel, and all heating surfaces need to be laid by refractory castable, a screen type medium temperature superheater outlet header A7 is communicated with a screen type high temperature superheater inlet header A8, a secondary water spray temperature reduction device is arranged on the screen type medium temperature superheater outlet header, the screen type high temperature superheater is hung on the upper part of a boiler furnace, and all the heating surfaces need to be laid by refractory castable.
Furthermore, in order to design more reasonably, an economizer is arranged in a flue at the tail part of the flue gas outlet of the wall-wrapped membrane wall low-temperature superheater, high-temperature water output by the economizer is communicated with a water inlet at the upper part of the steam drum, an outlet header A9 of the screen type high-temperature superheater is communicated with a steam inlet of a steam turbine, and the output end of the steam turbine is connected with a generator.
The utility model has the advantages that: the superheated steam pressure of the municipal waste and sludge boiler is increased, and the temperature of the municipal waste and sludge boiler is increased, so that the superheated steam pressure is matched with the temperature, the acting capacity of the boiler in a steam turbine is improved, and the circulating heat efficiency is improved. Meanwhile, the superheater adopts a structure type of a wall-wrapped membrane type wall, the fire facing surface of the superheater is laid by adopting a refractory castable, and the heat of the flue gas is conducted to the superheater tube through the refractory castable, so that the corrosive high-temperature flue gas is isolated from the metal outer wall of the high-temperature superheater tube. Thus, the pipe wall corrosion of the high-temperature superheater is avoided, and the cycle heat efficiency is improved due to the improvement of the steam temperature.
The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.
Claims (9)
1. The utility model provides an use boiler of municipal refuse and mud as fuel which characterized in that: the boiler comprises a boiler furnace, a wall-wrapped membrane wall low-temperature superheater and a steam drum, wherein a U-shaped flue gas channel is arranged in the wall-wrapped membrane wall low-temperature superheater, a screen type medium-temperature superheater and a coiled pipe low-temperature superheater are sequentially arranged in the flue gas channel, the screen type high-temperature superheater is arranged in the boiler furnace, and a steam outlet end of the steam drum is sequentially connected with superheater tubes positioned on the wall-wrapped membrane wall low-temperature superheater, the coiled pipe low-temperature superheater, the screen type medium-temperature superheater and the screen type high-temperature superheater; the screen type medium temperature superheater and the screen type high temperature superheater both comprise steel pipes and flat steel sheets radially arranged on the steel pipes, and a refractory sintering material with heat-resistant steel bars embedded therein is arranged on the peripheries of the flat steel sheets; the flue gas inlet end of the wall-wrapped membrane wall low-temperature superheater is connected with a boiler furnace.
2. The boiler using municipal waste and sludge as fuel according to claim 1, wherein: the superheater tubes comprise a first group of superheater tubes positioned on the wrapped-wall film-wall low-temperature superheater, a second group of superheater tubes positioned on the serpentine-tube low-temperature superheater, a third group of superheater tubes positioned on the platen medium-temperature superheater and a fourth group of superheater tubes positioned on the platen medium-temperature superheater.
3. The boiler using municipal waste and sludge as fuel according to claim 1 or 2, wherein: the superheater tubes on the wall-wrapped diaphragm wall low-temperature superheater, the coiled tube low-temperature superheater, the screen type medium-temperature superheater and the screen type high-temperature superheater are formed by arranging a plurality of tube bodies, and a box body integrating the plurality of tube bodies is arranged at the inlet end and the outlet end of each tube body to be connected, so that an inlet header or an outlet header is formed.
4. The boiler using municipal waste and sludge as fuel according to claim 2, wherein: the steam inlet end of the first group of superheater tubes is connected with the steam outlet end of the steam drum, the steam outlet end of the first group of superheater tubes is connected with the steam inlet end of the second group of superheater tubes, the steam outlet end of the second group of superheater tubes is connected with the steam inlet end of the third group of superheater tubes, and the steam outlet end of the third group of superheater tubes is connected with the steam inlet end of the fourth group of superheater tubes; and the steam outlet end of the fourth group of superheater tubes is connected with a steam turbine, and the output end of the steam turbine is connected with a generator.
5. The boiler using municipal waste and sludge as fuel according to claim 4, wherein: and a first-stage water spraying temperature reducing device is arranged at the steam outlet end of the second group of superheater tubes.
6. The boiler using municipal waste and sludge as fuel according to claim 4, wherein: and a secondary water spraying temperature reducing device is arranged at the steam outlet end of the third group of superheater tubes.
7. The boiler using municipal waste and sludge as fuel according to claim 1, wherein: the wall-wrapped membrane wall low-temperature superheater is arranged on a furnace wall on the smoke descending side of the U-shaped flue, the screen type medium-temperature superheater is arranged on the smoke descending side of the U-shaped flue, and the coiled pipe low-temperature superheater is arranged on the smoke ascending side of the U-shaped flue.
8. The boiler using municipal waste and sludge as fuel according to claim 1, wherein: and the fire-facing surface of the wall-wrapping membrane wall low-temperature superheater is laid by adopting a refractory castable.
9. The boiler using municipal waste and sludge as fuel according to claim 1, wherein: the flue gas outlet end of the wall-wrapped membrane wall low-temperature superheater is connected with a tail flue, a coal economizer is arranged in the tail flue, one end of the coal economizer is a water supply end, and the other end of the coal economizer is connected with a water inlet end of the steam drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920843946.2U CN210107460U (en) | 2019-06-05 | 2019-06-05 | Boiler using municipal refuse and sludge as fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920843946.2U CN210107460U (en) | 2019-06-05 | 2019-06-05 | Boiler using municipal refuse and sludge as fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210107460U true CN210107460U (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920843946.2U Active CN210107460U (en) | 2019-06-05 | 2019-06-05 | Boiler using municipal refuse and sludge as fuel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210107460U (en) |
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2019
- 2019-06-05 CN CN201920843946.2U patent/CN210107460U/en active Active
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