CN213066062U - Exhaust-heat boiler and waste incineration system - Google Patents
Exhaust-heat boiler and waste incineration system Download PDFInfo
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- CN213066062U CN213066062U CN202021412352.5U CN202021412352U CN213066062U CN 213066062 U CN213066062 U CN 213066062U CN 202021412352 U CN202021412352 U CN 202021412352U CN 213066062 U CN213066062 U CN 213066062U
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Abstract
The utility model discloses a waste heat boiler and msw incineration system, waste heat boiler includes: the flue is communicated with the incinerator, the dilution gas hole is formed in the flue, the air pipe is connected with the dilution gas hole, the superheater is installed in the flue, the superheater is located at the downstream of the dilution gas hole, the evaporator is installed in the flue, the evaporator is located at the downstream of the superheater, and the boiler barrel is connected with each of the superheater and the evaporator. The air pipe can convey gas without corrosive medium into the flue through the dilution gas hole, and the gas without corrosive medium can dilute the corrosive medium in the high-temperature flue gas so as to reduce the concentration of the corrosive medium in the high-temperature flue gas, thereby reducing the corrosion speed of the corrosive medium in the high-temperature flue gas on the heating surface of the superheater and prolonging the service life of the superheater.
Description
Technical Field
The utility model relates to a msw incineration field specifically, relates to a waste heat boiler and msw incineration system.
Background
With the accelerated urbanization process in China, large gap of domestic garbage treatment requirements and complex domestic garbage components, chlorine elements and alkali metal elements contained in the domestic garbage enter flue gas or form fly ash after being combusted, so that metal corrosion on a heating surface of a boiler is caused, the corrosion speed is closely related to the temperature of a pipe wall, when the temperature reaches 500 ℃, the corresponding temperature range of the pipe wall is 450-550 ℃, the corrosion speed is increased at the highest speed, when the steam temperature is 450 ℃ and the steam pressure is 6.5MPa, pipe explosion on the heating surface of the superheater occurs only after the superheater is operated for 100 days, the superheater is stopped and overhauled, and normal production is influenced, therefore, the problem of corrosion of the heat exchange pipe on the heating surface is solved to increase the steam temperature, in the related technology, superheater materials are increased, or metal surface modification such as surfacing welding, spraying and the like is used for enhancing the corrosion resistance of the heating surface of the superheater, the cost is increased, so that the waste incineration waste heat boiler which is economical and practical and is suitable for high smoke temperature is urgently needed.
SUMMERY OF THE UTILITY MODEL
The present invention is made based on the discovery and recognition by the inventors of the following facts and problems: corrosive media in the high-temperature flue gas can corrode a superheater of the waste heat boiler, the higher the concentration of the corrosive media in the high-temperature flue gas is, the faster the corrosion speed of the superheater is, the shorter the service life of the superheater is, the lower the concentration of the corrosive media in the high-temperature flue gas is, the slower the corrosion speed of the superheater is, and the longer the service life of the superheater is.
The present invention aims at solving at least one of the technical problems in the related art to a certain extent.
Therefore, the embodiment of the utility model provides an exhaust-heat boiler.
According to the utility model discloses exhaust-heat boiler, include:
the flue is communicated with the incinerator, and a dilution gas hole is formed in the flue;
the air pipe is connected with the dilution gas hole;
a superheater mounted within the flue, the superheater located downstream of the dilution gas orifice;
an evaporator mounted within the flue, the evaporator being located downstream of the superheater; and
a drum connected to each of the superheater and the evaporator.
According to the utility model discloses a waste heat boiler, the flue has the horizontal segment that extends along first horizontal direction, the diluent gas hole is established on the horizontal segment, the over heater with each in the evaporimeter is installed in the horizontal segment.
According to the utility model discloses a waste heat boiler that embodiment provided, the flue includes relative first lateral wall and second lateral wall in the second horizontal direction, the dilution gas hole includes a plurality of first sub dilution gas holes and a plurality of second sub dilution gas holes, and is a plurality of first sub dilution gas hole is established along vertical direction interval ground on the first lateral wall, and is a plurality of first sub dilution gas hole is relative in vertical direction, and is a plurality of second sub dilution gas hole is established along vertical direction interval ground on the second lateral wall, and is a plurality of second sub dilution gas hole is relative in vertical direction, and is a plurality of first sub dilution gas hole is with a plurality of second sub dilution gas hole is in one-to-one in the second horizontal direction, first horizontal direction perpendicular to the second horizontal direction.
According to the utility model discloses a waste heat boiler that embodiment provided still includes the air-supply line, and the tuber pipe is connected with the air-supply line.
According to the utility model discloses a waste heat boiler that embodiment provided, be equipped with valve and pressure measurement meter on the tuber pipe.
According to the utility model discloses a waste heat boiler that embodiment provided, the tuber pipe includes that first person in charge, second person in charge, a plurality of first branch pipe and a plurality of second branch pipe, and every first branch pipe links to each other with first person in charge, and every second branch pipe is responsible for with the second and links to each other, and a plurality of first branch pipe one-to-ones links to each other with a plurality of first sub dilution gas holes, and a plurality of second branch pipe one-to-ones links to each other with a plurality of second sub dilution gas holes, all is equipped with valve and pressure measurement meter on first person in charge and the second person in charge.
According to the utility model discloses an exhaust-heat boiler that embodiment provided, be equipped with the steam hole on the flue, the steam hole includes a plurality of first sub-steam holes and second sub-steam hole, be equipped with on the first lateral wall along a plurality of first sub-steam holes of vertical direction spaced apart, it is a plurality of first sub-steam hole is relative in vertical direction, and is a plurality of first sub-steam hole is with a plurality of first sub-dilution gas hole sets up in the vertical direction in turn, be equipped with on the second lateral wall along a plurality of second sub-steam holes of vertical direction spaced apart, it is a plurality of second sub-steam hole is relative in vertical direction, and is a plurality of second sub-steam hole is with a plurality of second sub-dilution gas hole sets up in the vertical direction in turn, and is a plurality of first sub-steam hole is in with a plurality of second sub-steam hole is in the second horizontal direction is relative one by one.
According to the utility model discloses a waste heat boiler that embodiment provided, first sub dilution gas hole with first sub steam hole is relative in vertical direction, second sub dilution gas hole with second sub steam hole is relative in vertical direction.
According to the utility model discloses a waste heat boiler, msw incineration waste heat boiler over heater anticorrosion system still includes the economizer, the economizer is located the low reaches of evaporimeter, the one end and the outside water supply installation of economizer are connected, the economizer other end with the boiler section of thick bamboo is connected.
According to the utility model discloses an embodiment provides a waste heat boiler, msw incineration waste heat boiler still includes leading protection evaporimeter, leading protection evaporimeter is installed in the flue, leading protection evaporimeter is located the upper reaches in diluent gas hole.
According to the utility model discloses an exhaust-heat boiler that embodiment provided, the aperture of diluent gas hole is 200 and supplys power 800 mm.
A waste incineration system comprises a waste heat boiler provided according to the embodiment of the utility model.
Drawings
Fig. 1 is a schematic view of the internal structure of a flue of a waste heat boiler according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of the external structure of the flue of the waste heat boiler according to the embodiment of the invention.
Fig. 3 is a schematic structural diagram of an exhaust-heat boiler air pipe according to the embodiment of the invention.
Reference numerals:
a waste heat boiler 100;
a flue 110, a first side wall 111, a second side wall 112, a superheater 120, a dilution gas hole 130, an air pipe 140, an evaporator 150, a steam hole 160, an economizer 170, a front protection evaporator 180 and a drum 190;
a high-temperature steam pipe 121, a first sub dilution gas hole 131, a second sub dilution gas hole 132, a first main pipe 141, a second main pipe 142 valve 143, a pressure gauge 144, a first sub steam hole 161, a second sub steam hole 162, and an economizer inlet pipe 171;
a first branch 145, a second branch 146
An air inlet pipe 200;
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
A waste heat boiler according to an embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1 to 3, a waste heat boiler according to an embodiment of the present invention includes a flue 110, an air duct 200, a superheater 120, an evaporator 150, and a drum 190.
The superheater 120 is installed in the flue 110, the superheater 120 being located downstream of the dilution gas orifice 130;
the evaporator 150 is installed in the flue 110, and the evaporator 150 is located downstream of the superheater 120; and
the drum 190 is connected to each of the superheater 120 and the evaporator 150.
The flue 110 is provided with a dilution gas hole 130, the air pipe 140 is communicated with the dilution gas hole 130,
the superheater 120 is installed in the flue 110 downstream of the dilution gas orifice 130 (as shown in fig. 1, the upstream and downstream positions are determined according to the flow direction of the flue gas),
the drum 190 is connected to each of the superheater 120 and the evaporator 150.
An evaporator 150 is mounted within the flue 110 downstream of the superheater 120.
The location of the evaporator 150 downstream of the superheater 120 means: the high temperature flue gas in the flue passes through the superheater and then the evaporator 15.
The superheater 120 is located downstream of the dilution gas orifices means that: the high temperature flue gas in the flue passes through the dilution gas holes 130 and then the superheater 120.
According to the utility model discloses a waste heat boiler 100 that the embodiment provided, the high temperature flue gas that comes from burning furnace gets into flue 110 from burning furnace after, earlier with superheater 120 heat transfer, will come from the saturated steam heating in the boiler section of thick bamboo 190 and become superheated steam, increase the energy in the steam and carry superheated steam to the steam turbine in through high temperature steam pipe 121.
The ductwork 140 can convey a corrosive medium free gas into the flue 110 through the dilution gas holes 130. The gas without the corrosive medium can dilute the corrosive medium in the high-temperature flue gas so as to reduce the concentration of the corrosive medium in the high-temperature flue gas. In the heat exchange process of the high-temperature flue gas and the superheater 120, a large amount of corrosive medium is carried, and at the moment, the gas without the corrosive medium is conveyed to the dilution gas hole 130 through the air pipe 140, so that the gas without the corrosive medium is positioned in the working area of the superheater 120, and the corrosive medium in the high-temperature flue gas is diluted, so that the corrosion speed of the corrosive medium in the high-temperature flue gas on the heating surface of the superheater 120 can be reduced, and the service life of the superheater 120 is prolonged. The high temperature flue gas after heat exchange with the superheater 120 exchanges heat with the evaporator 150, heats water in the evaporator 150 into saturated steam vapor, and the saturated steam is sent into the drum 190. (the saturated steam is then heated by the high temperature flue gas in a superheater to superheated steam).
Therefore, the exhaust heat boiler 100 according to the embodiment of the present invention has the advantages of low corrosion degree, long service life of the superheater 120, etc.
As shown in fig. 1-3, the heat recovery steam generator 100 includes a flue 110, an air duct 140, a superheater 120, an evaporator 150, and a drum 190. The flue 110 may be connected to an incinerator for incinerating garbage so that high-temperature flue gas generated by incinerating garbage can enter the flue 110.
In some embodiments, the flue 110 has a horizontal section extending in a first horizontal direction, the dilution gas holes 130 are provided on the horizontal section, and each of the superheater 120 and the evaporator 150 is installed within the horizontal section. Wherein the first horizontal direction is indicated by arrow a in fig. 3.
According to the utility model discloses a waste heat boiler 100 that the embodiment provided, flue 110 have the horizontal segment, can make the high temperature flue gas flow smoothly, make the high temperature flue gas and establish over heater 120 and evaporimeter 150 on the horizontal segment can the quick heat transfer, increase heat exchange efficiency. The flue gas in the horizontal section can be directly diluted through the dilution gas holes 130, so that the concentration of corrosive media in the flue gas is reduced, and the superheater 120 in the flue of the horizontal section is protected.
In some embodiments, the flue 110 includes a first side wall 111 and a second side wall 112 that are opposite in a second horizontal direction (shown in FIG. 3 as arrow B). The dilution gas holes 130 include a plurality of first sub-dilution gas holes 131 and a plurality of second sub-dilution gas holes 132. The plurality of first sub dilution gas holes 131 are provided on the first sidewall 111 at intervals in the second horizontal direction, and the plurality of first sub dilution gas holes 131 are opposite in the second horizontal direction. A plurality of second sub dilution gas holes 132 are provided on the second sidewall 112 at intervals in the second horizontal direction, the plurality of second sub dilution gas holes 132 being opposite in the second horizontal direction. The plurality of first sub dilution gas holes 131 and the plurality of second sub dilution gas holes 132 are opposite to each other in the second horizontal direction.
That is, the number of the first sub dilution gas holes 131 may be equal to the number of the second sub dilution gas holes 132, each of the first sub dilution gas holes 131 is opposite to one of the second sub dilution gas holes 132 in the second horizontal direction, and each of the second sub dilution gas holes 132 is opposite to one of the first sub dilution gas holes 131 in the second horizontal direction.
According to the utility model discloses a waste heat boiler 100 that the embodiment provided, through set up a plurality of relative first sub dilution gas holes 131 in vertical direction and set up a plurality of relative second sub dilution gas holes 132 in vertical direction on second lateral wall 112 on first lateral wall 111 with first horizontal direction looks vertically second horizontal direction one side to not only can increase the gas flow who does not contain corrosive media in getting into flue 110, but also can make high temperature flue gas and this gas mix more evenly, so that avoid the corrosive media concentration of flue gas local too high. This can further reduce corrosion (wear) of the heating surface of the superheater 120 by the corrosive medium.
Further, the exhaust heat boiler 100 comprises an air inlet pipe 200, the air pipe 140 is connected to the air inlet pipe 200, in some embodiments, the air inlet pipe 140 is a secondary air pipe and/or a flue gas purification and recycling air pipe, and the air pipe 140 is connected to at least one of the secondary air pipe and the flue gas purification and recycling air pipe.
According to the utility model discloses a waste heat boiler 100 that the embodiment provided is connected through making tuber pipe 140 and overgrate air pipeline and purifying retrieval and utilization flue gas tuber pipe in at least one to can utilize overgrate air and/or purify retrieval and utilization flue gas as the gas that does not contain corrosive medium. Because the secondary air and the purified and recycled flue gas have certain heat, namely the secondary air and the purified and recycled flue gas have higher temperature, the heat in the high-temperature flue gas is hardly consumed when the secondary air and the purified and recycled flue gas enter the horizontal section flue, namely the temperature of the high-temperature flue gas is not basically reduced, so that the heat exchange efficiency is ensured under the condition of reducing the concentration of a corrosive medium.
In some embodiments, a valve 143 and a pressure gauge 144 are provided on the air conduit 140.
According to the utility model discloses a waste heat boiler 100 that the embodiment provided, through set up valve 143 and pressure gauge 144 on tuber pipe 140, can real time control get into the flow that does not contain corrosive medium gas of horizontal segment flue through tuber pipe 140.
In some embodiments, the duct 140 includes a first main pipe 141, a second main pipe 142, a plurality of first branch pipes 145 and a plurality of second branch pipes 146, each of the first branch pipes 145 is connected to the first main pipe 141, each of the second branch pipes 146 is connected to the second main pipe 142, the plurality of first branch pipes 145 are connected to the plurality of first sub dilution gas holes 131 in a one-to-one correspondence, the plurality of second branch pipes 146 are connected to the plurality of second sub dilution gas holes 132 in a one-to-one correspondence, and the first main pipe 141 and the second main pipe 142 are provided with a valve 143 and a pressure gauge 144.
In some embodiments, the flue 110 is provided with the steam holes 160, the steam holes 160 include a plurality of first sub-steam holes 161 and a plurality of second sub-steam holes 162, the first side wall 111 is provided with a plurality of first sub-steam holes 161 spaced apart along a second horizontal direction, the plurality of first sub-steam holes 161 are opposite to each other in a vertical direction, the plurality of first sub-steam holes 161 and the plurality of first sub-dilution gas holes 131 are alternately arranged in the second horizontal direction, the second side wall 112 is provided with a plurality of second sub-steam holes 162 spaced apart along the second horizontal direction, the plurality of second sub-steam holes 162 are opposite to each other in the second horizontal direction, the plurality of second sub-steam holes 162 and the plurality of second sub-dilution gas holes 132 are alternately arranged in the second horizontal direction, and the plurality of first sub-steam holes 161 and the plurality of second sub-steam holes 162 are opposite to each other in the second horizontal direction.
According to the utility model discloses a waste heat boiler 100 that the embodiment provided, through first sub-steam hole 161 and second sub-steam hole 162 with steam carry to over heater 120's working space, clear up the deposition on the over heater 120 wall pipe, reduce the cover of corroding the medium on the over heater 120 heated surface, increase over heater 120's life.
In some embodiments, the first sub dilution gas holes 131 are opposite to the first sub steam holes 161 in the second horizontal direction, and the second sub dilution gas holes 132 are opposite to the second sub steam holes 162 in the second horizontal direction.
According to the utility model discloses a waste heat boiler 100 that the embodiment provided, it is relative in the second horizontal direction with first sub dilution gas hole 131 and first sub steam hole 161 and relative in the second horizontal direction with second sub dilution gas hole 132 and second sub steam hole 162, can make things convenient for the inspection and the management to outside pipeline, make things convenient for the staff operation.
In some embodiments, the waste heat boiler 100 further comprises an economizer 170, the economizer 170 being located downstream of the evaporator 150, the economizer 170 being connected to the drum 190 and the water supply, respectively.
The economizer 170 is located downstream of the evaporator 150, meaning that: the high temperature flue gas in the flue passes through the evaporator 150 and then the economizer 170.
According to the utility model discloses a waste heat boiler 100 that the embodiment provided, economizer 170 can be further utilizes the heat to the high temperature flue gas, will send the water heating to economizer 170 in to the boiler section of thick bamboo 190 through economizer inlet tube 171.
In some embodiments, the waste heat boiler further comprises a pre-protection evaporator 180, the pre-protection evaporator 180 being mounted within the flue 110, the pre-protection evaporator 180 being located upstream of the dilution gas orifice 130.
The pre-protection evaporator 180 being located upstream of the dilution gas orifice 130 means: the high temperature flue gas in the flue passes through the pre-protection evaporator 180 and then through the dilution gas holes 130.
According to the utility model discloses a waste heat boiler 100 that the embodiment provided, leading protection evaporimeter 180's setting can at first carry out the heat transfer with the high temperature flue gas, reduces the temperature that gets into over heater 120 workspace's high temperature flue gas, slows down over heater 120 speed under the high temperature corrosion, increases over heater 120's life.
In some embodiments, the dilution gas holes 130 have a hole diameter of 200-800 mm.
According to the utility model discloses a waste heat boiler 100's that the embodiment provided in the utility model service behavior, set up the aperture of diluent gas hole, when the aperture of diluent gas hole 130 is less than 200mm and when the aperture of diluent gas hole 130 is greater than 800mm, increased the processing cost, preferably, the aperture of diluent gas hole is 600 mm.
As shown in fig. 1 to 3, a waste heat boiler 100 according to an embodiment of the present invention includes a flue 110, a front protection evaporator 180, 6 dilution gas holes 130, 4 steam holes 160, a superheater 120, an evaporator 150, an economizer 170, and a drum 180.
Wherein, a preposed protection evaporator 180, a superheater 120, an evaporator 150 and an economizer 170 are sequentially arranged in the flue 110 from left to right, the preposed protection evaporator 180 and the evaporator 150 are circularly communicated with the drum, the superheater is connected with the drum 190 through a pipeline and is connected with a steam turbine through a high-temperature steam pipe 121, the inlet of the economizer is connected with a water supply device, the outlet of the economizer is connected with the drum, 3 dilution gas holes 130 in 6 dilution gas holes 130 and 2 steam holes 160 in 6 steam holes 160 are alternately arranged on the first side wall 111 between the preposed protection evaporator 180 and the superheater 120, the axes of the 3 dilution gas holes 130 and the 2 steam holes 160 in the vertical direction are the same, the other 3 dilution gas holes 130 and the other 2 steam holes 160 are alternately arranged on the first side wall 112 between the preposed protection evaporator 180 and the superheater 120, and the axes of the 3 dilution gas holes 130 and the 2 steam holes 160 in the vertical direction are the same, the 3 dilution gas holes 130 and 2 steam holes 160 on the first sidewall 111 correspond to the 3 dilution gas holes 130 and 2 steam holes 160 on the second chart 112 in height in the vertical direction one to one.
The flue 110 includes three sections of the turnback flue and a horizontal section of the flue, and the three sections of the turnback flue are composed of water-cooled walls.
As shown in fig. 3, the waste heat boiler 100 further includes an air inlet duct 200 and an air duct 140, and the air inlet duct 200 is connected to the air duct 140.
The air duct 140 includes a first main duct 141, a second main duct 142, 3 first branch ducts 145, 3 second branch ducts 146, 2 valves 143, and 3 pressure meters 144, the first main duct 141 is provided with one valve 143 and one pressure meter 144, the second main duct is provided with one valve 143 and one pressure meter 144, the height of the 3 first branch ducts 145 in the vertical direction corresponds to the height of the 3 first sub dilution gas holes 131 in the first side wall 111 in the vertical direction one-to-one and is connected to the 3 first sub dilution gas holes 131 one-to-one, and the height of the 3 second branch ducts 146 in the vertical direction corresponds to the height of the 3 second sub dilution gas holes 132 in the second side wall 112 in the vertical direction one-to-one and is connected to the 3 second sub dilution gas holes 132 one-to-one.
In some embodiments, dilution gas holes 130 and steam holes 160 may be square holes, rectangular holes, circular holes, and the like.
A waste incineration system comprises a waste heat boiler 100 provided according to the utility model discloses an embodiment.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A waste heat boiler, comprising:
the flue is communicated with the incinerator, and a dilution gas hole is formed in the flue;
the air pipe is connected with the dilution gas hole;
a superheater mounted within the flue, the superheater located downstream of the dilution gas orifice;
an evaporator mounted within the flue, the evaporator being located downstream of the superheater; and
a drum connected to each of the superheater and the evaporator.
2. The waste heat boiler of claim 1, wherein the flue has a horizontal section extending in a first horizontal direction, the dilution gas orifice being provided in the horizontal section, each of the superheater and the evaporator being mounted in the horizontal section.
3. The exhaust-heat boiler according to claim 2, wherein the flue includes a first side wall and a second side wall that are opposite to each other in a second horizontal direction, the dilution gas holes include a plurality of first sub dilution gas holes and a plurality of second sub dilution gas holes, the plurality of first sub dilution gas holes are provided on the first side wall at intervals in a vertical direction, the plurality of first sub dilution gas holes are opposite to each other in the vertical direction, the plurality of second sub dilution gas holes are provided on the second side wall at intervals in the vertical direction, the plurality of second sub dilution gas holes are opposite to each other in the vertical direction, the plurality of first sub dilution gas holes and the plurality of second sub dilution gas holes are opposite to each other in the second horizontal direction, and the first horizontal direction is perpendicular to the second horizontal direction.
4. The exhaust-heat boiler of claim 1, characterized by further comprising an air inlet pipe, wherein the air pipe is connected with the air inlet pipe.
5. The exhaust-heat boiler according to claim 1, characterized in that the air duct is provided with valves and pressure gauges.
6. A waste heat boiler as claimed in claim 3, characterized in that the air duct comprises a first main duct, a second main duct, a plurality of first branch ducts and a plurality of second branch ducts, each first branch duct being connected to the first main duct, each second branch duct being connected to the second main duct, the plurality of first branch ducts being connected to the plurality of first sub dilution gas holes in a one-to-one correspondence, the plurality of second branch ducts being connected to the plurality of second sub dilution gas holes in a one-to-one correspondence, and the first main duct and the second main duct being provided with valves and pressure gauges.
7. The exhaust-heat boiler according to claim 3, wherein the flue is provided with steam holes, the steam holes include a plurality of first sub-steam holes and a plurality of second sub-steam holes, the first side wall is provided with a plurality of first sub-steam holes spaced apart in a vertical direction, the plurality of first sub-steam holes are vertically opposed to each other, the plurality of first sub-steam holes and the plurality of first sub-dilution gas holes are vertically alternately arranged, the second side wall is provided with a plurality of second sub-steam holes spaced apart in a vertical direction, the plurality of second sub-steam holes are vertically opposed to each other, the plurality of second sub-steam holes and the plurality of second sub-dilution gas holes are vertically alternately arranged, and the plurality of first sub-steam holes and the plurality of second sub-steam holes are vertically opposed to each other in the second horizontal direction.
8. The exhaust-heat boiler according to claim 7, characterized in that the first sub dilution gas holes are vertically opposite to the first sub steam holes, and the second sub dilution gas holes are vertically opposite to the second sub steam holes.
9. A waste heat boiler as claimed in claim 1, characterized in that the waste heat boiler further comprises a pre-protection evaporator mounted in the flue, the pre-protection evaporator being located upstream of the dilution gas aperture.
10. A waste incineration system, characterized in that it comprises a waste heat boiler according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021412352.5U CN213066062U (en) | 2020-07-16 | 2020-07-16 | Exhaust-heat boiler and waste incineration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021412352.5U CN213066062U (en) | 2020-07-16 | 2020-07-16 | Exhaust-heat boiler and waste incineration system |
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| Publication Number | Publication Date |
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| CN213066062U true CN213066062U (en) | 2021-04-27 |
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| CN202021412352.5U Active CN213066062U (en) | 2020-07-16 | 2020-07-16 | Exhaust-heat boiler and waste incineration system |
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