CN218626801U - Novel exhaust-heat boiler - Google Patents
Novel exhaust-heat boiler Download PDFInfo
- Publication number
- CN218626801U CN218626801U CN202223101980.3U CN202223101980U CN218626801U CN 218626801 U CN218626801 U CN 218626801U CN 202223101980 U CN202223101980 U CN 202223101980U CN 218626801 U CN218626801 U CN 218626801U
- Authority
- CN
- China
- Prior art keywords
- furnace body
- boiler
- evaporator
- wall
- water
- 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.)
- Active
Links
Images
Classifications
-
- 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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to the boiler field, in particular to a novel waste heat boiler, which comprises a boiler body, wherein a flue inlet and a flue outlet are arranged on the boiler body; the boiler body comprises a circulating furnace body and a smoke exhaust furnace body, and the circulating furnace body is communicated with the smoke exhaust furnace body through a communication pipeline; the flue inlet is arranged on the circulating furnace body, and the flue outlet is arranged on the smoke exhaust furnace body; the utility model discloses a novel waste heat boiler, the utility model adopts split design, which can better ensure the stability of the arrangement of the waste heat boiler and simultaneously facilitate the independent placement of each component system in the follow-up process; the contact area of the evaporator or the superheater and the high-temperature flue gas is ensured, and the heat exchange effect is optimized.
Description
Technical Field
The utility model relates to a boiler field is a novel exhaust-heat boiler particularly.
Background
China is a big agricultural country, agricultural wastes are part of biomass resources, are not utilized, are pollution sources, and are renewable, inexhaustible and inexhaustible resources through reasonable utilization.
With the development of society, the environmental protection requirements of all places are higher and higher, and the biomass fuel boiler has the characteristics of environmental protection, energy conservation and renewable biomass energy sources; is gradually becoming a substitute product of the traditional coal, oil and natural gas fuel industrial boiler.
The available biomass fuel mainly comprises various agricultural wastes such as rice husks, various crop straws and the like, and also comprises forestry wastes such as branches, tree roots, waste wood, leftover materials and the like.
When the biomass fuel is used, an application mode is to use a waste heat boiler to absorb high-temperature waste gas discharged when the biomass fuel is combusted for power generation.
However, because the traditional waste heat boiler has a single structure, a furnace body is generally adopted, so that the movement path of high-temperature waste gas in the furnace is short; the heat in the high-temperature waste gas is not sufficiently utilized, the temperature of the waste gas discharged outside the boiler is higher, and the waste of resources is caused to a certain extent.
According to the search, the prior art is lack of a technical scheme for solving the problems, such as the patent CN107654985A, a novel cement kiln tail waste heat boiler cannot solve the problems.
A heat recovery boiler having a long moving path of high-temperature exhaust gas is now required.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can realize that high-temperature gas has the novel exhaust-heat boiler of longer motion distance in the furnace body.
In order to realize the purpose, the utility model discloses a technical scheme be:
a novel waste heat boiler comprises a boiler body, wherein a flue inlet and a flue outlet are formed in the boiler body;
the boiler body comprises a circulating furnace body and a smoke exhaust furnace body, and the circulating furnace body is communicated with the smoke exhaust furnace body through a communication pipeline; the flue inlet is arranged on the circulating furnace body, and the flue outlet is arranged on the smoke exhaust furnace body.
A membrane type wall tube panel system, an evaporator system, a superheater system and an economizer system are arranged in the boiler body; the membrane type wall tube panel system, the evaporator system and the superheater system are arranged in the circulating furnace body; the economizer system is arranged in the smoke exhaust furnace body.
The membrane wall tube panel system comprises a front membrane water-cooled wall, a middle water-cooled wall and a rear water-cooled wall which are arranged in the circulating furnace body; the front membrane type water-cooled wall, the middle water-cooled wall and the rear water-cooled wall are sequentially distributed at intervals; the front membrane type water-cooled wall and the rear water-cooled wall are distributed on two sides of the middle water-cooled wall; and a flue gas channel is arranged on the middle water-cooled wall.
The flue gas channel is arranged at one end of the middle water-cooled wall far away from the flue inlet.
A first convection cavity is formed between the front membrane type water-cooled wall and the middle water-cooled wall; a second convection cavity is formed between the middle water-cooled wall and the rear water-cooled wall; the first convection cavity is communicated with the second convection cavity through a flue gas channel.
The evaporator system comprises a first evaporator, a second evaporator and a third evaporator; the first evaporator and the second evaporator are arranged in a first convection chamber; the third evaporator is disposed within the second convection chamber.
The first evaporator and the second evaporator are connected to the front membrane type water-cooled wall; and the third evaporator is connected to the rear water-cooled wall.
The superheater system comprises a superheater, and the superheater is arranged in the circulating furnace body; the superheater is arranged in a second convection cavity of the circulating furnace body.
The third evaporator is arranged above the superheater; the superheater is connected with a water spray desuperheater.
The economizer system comprises a high-temperature economizer and a low-temperature economizer which are arranged in the smoke exhaust furnace body; the high-temperature economizer is arranged close to the connecting pipeline, and the low-temperature economizer is arranged close to the flue outlet; the high-temperature coal economizer and the low-temperature coal economizer are distributed at intervals.
The utility model has the advantages that;
the utility model discloses a novel waste heat boiler, the utility model adopts split design, which can better ensure the stability of the arrangement of the waste heat boiler and simultaneously facilitate the independent placement of each component system in the follow-up process; the contact area of the evaporator or the superheater and the high-temperature flue gas is ensured, and the heat exchange effect is optimized.
Drawings
The contents of the various figures of the specification and the labels in the figures are briefly described as follows:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of the utility model in use.
Fig. 3 is a side view of the present invention in use.
The labels in the above figures are:
1. boiler body, 2, diaphragm type wall tube panel system, 4, over heater, 6, platform staircase.
Detailed Description
The following description of the preferred embodiments of the present invention will be made in further detail with reference to the accompanying drawings.
A novel waste heat boiler comprises a boiler body 1, wherein a flue inlet 15 and a flue outlet 16 are arranged on the boiler body 1; the boiler body 1 comprises a circulating furnace body 11 and a smoke exhaust furnace body 12, wherein the circulating furnace body 11 is communicated with the smoke exhaust furnace body 12 through a communication pipeline 17; the flue inlet 15 is arranged on the circulating furnace body 11, and the flue outlet 16 is arranged on the smoke exhaust furnace body 12; the utility model discloses a novel waste heat boiler, the utility model discloses boiler body 1 adopts split type design, can be better the stability of guaranteeing waste heat boiler arrangement, also made things convenient for simultaneously each part system of follow-up independent placing respectively; the contact area of the evaporator or the superheater 4 and the high-temperature flue gas is ensured, and the heat exchange effect is optimized.
In particular, the utility model discloses a novel waste heat boiler; the waste heat boiler of the utility model is a single-drum horizontal natural circulation water pipe boiler with an angle pipe structure; the utility model discloses a waste heat boiler which mainly comprises a boiler body 1, wherein the boiler body 1 provides an arrangement place for subsequent heat exchange parts in actual use; in the utility model, the boiler body 1 is mainly divided into two parts, namely a circulating furnace body 11 and a smoke exhaust furnace body 12; the two furnace bodies are distributed at intervals, so that the arrangement mode can increase the flow path of high-temperature flue gas and well reduce the problem of smoke exhaust; in addition, the circulating furnace body 11 and the smoke exhaust furnace body 12 of the utility model are both arranged longitudinally, so that the dust in the high-temperature smoke can conveniently drop, and a dust falling hopper is arranged below the circulating furnace body 11 and the smoke exhaust furnace body 12 for the convenience of collecting the dust; be equipped with the bin outlet on the ash falling hopper, through above-mentioned design, made things convenient for the collection and the subsequent outer row of dust.
In the utility model, a flue inlet 15 and a flue outlet 16 are arranged on the boiler body 1; as the name suggests, the flue inlet 15 is a passage for high-temperature flue gas coming out from the tail of the kiln in the previous process to enter the boiler body, and the high-temperature flue gas enters the waste heat boiler through the flue inlet 15, so that the heat of the high-temperature flue gas can be conveniently utilized by heat exchange in the subsequent process; the flue outlet 16 is mainly used for discharging the cooled flue gas to the outside so as to avoid the accumulation of the gas in the boiler body 1; in practical arrangement, the flue inlet 15 is required to be arranged on the circulating furnace body 11 and below the circulating furnace body 11; the flue outlet 16 is arranged on the smoke exhaust furnace body 12; the flue outlet 16 is arranged below the smoke exhaust furnace body 12, and by the arrangement mode, the moving path of the high-temperature smoke in the boiler body 1 can be increased, and the heat in the high-temperature smoke can be fully utilized by a heat exchange system (a membrane wall tube panel system 2, an evaporator system and a superheater system) in the boiler body 1.
Meanwhile, because the circulating furnace body 11 and the smoke exhaust furnace body 12 are distributed at intervals, in order to ensure the normal flow of high-temperature smoke between the two furnace bodies, the boiler body 1 comprises the circulating furnace body 11 and the smoke exhaust furnace body 12, and the circulating furnace body 11 is communicated with the smoke exhaust furnace body 12 through a communication pipeline 17; the utility model has the advantages that the communicating pipeline 17 is arranged to achieve good communication, so that the flue gas can conveniently move from the circulating furnace body 11 to the smoke exhaust furnace body 12; meanwhile, in order to ensure the movement path of the flue gas, two ends of the communicating pipeline 17 are respectively connected with the upper ends of the circulating furnace body 11 and the smoke exhaust furnace body 12; such setting is cooperated again the 2 structures of diaphragm type wall tube panel system below, motion route that can furthest's increase flue gas optimizes the utility model discloses exhaust-heat boiler's waste heat utilization efficiency.
Furthermore, in the utility model, a membrane type wall tube panel system 2, an evaporator system, a superheater system and an economizer system are arranged in the boiler body 1; the membrane type wall tube panel system 2, the evaporator system and the superheater system are arranged in the circulating furnace body 11; the economizer system is arranged in the smoke exhaust furnace body 12; the basic function of the middle-mode wall tube panel system of the utility model is to absorb heat, and the high-temperature flue gas is utilized to realize the evaporation of water liquid in the middle-mode wall tube panel system by heating to form steam; in addition, the evaporator system is arranged in the utility model to form water vapor; the economizer system is used for reducing the temperature of exhaust smoke, reducing the heat loss of the exhaust smoke and saving dye, in addition, the feed water of the steam drum 13 can be heated, the heat absorption of the feed water heating surface is reduced, and in some cases, a part of evaporation heating surface with higher manufacturing cost can be replaced by the economizer; in addition, the temperature of the feed water is increased by heating the feed water through the economizer system, so that the temperature difference of the wall of the steam drum 13 is reduced when the feed water enters the steam drum 13, the thermal stress is correspondingly reduced, and the service life of the steam drum 13 is prolonged to a certain extent.
Meanwhile, the utility model is also provided with a superheater system, which heats the saturated steam into superheated steam with a certain superheat degree through heat exchange with high-temperature flue gas flowing through the furnace body; and in the load fluctuation range that the boiler allows and during the operating mode change, maintain superheated steam temperature normal, in other words, exactly, the utility model discloses a superheater system is the heat exchanger that becomes the superheated steam who has certain superheat degree with saturated steam heating, and the main objective can improve the utilization efficiency of exhaust-heat boiler waste heat.
The membrane type wall tube panel system 2, the evaporator system and the superheater system of the utility model are arranged in a circulating furnace body 11; with the arrangement, the membrane type wall tube panel system 2, the evaporator system and the superheater system firstly interact with high-temperature flue gas, and when the system is actually used, the system firstly interacts with the high-temperature flue gas to realize heat exchange, so that the high-temperature flue gas can be cooled to a certain extent when entering the economizer system, and the phenomenon that the subsequent economizer system absorbs the flue gas in time to cause the flue gas temperature to be overhigh is avoided; in addition, the economizer system is arranged in the smoke exhaust furnace body 12 in the utility model; by the arrangement, the heating operation of the water supply can be realized by utilizing the waste heat of the high-temperature flue gas, and meanwhile, the economizer system plays a final protection role and avoids overhigh discharged flue gas.
Furthermore, in the present invention, the membrane wall tube panel system 2 includes a front membrane water wall 21, a middle water wall 22 and a rear water wall 23 disposed in the circulating furnace body 11; the front membrane type water-cooled wall 21, the middle water-cooled wall 22 and the rear water-cooled wall 23 are sequentially distributed at intervals; the front membrane water-cooled wall 21 and the rear water-cooled wall 23 are distributed on two sides of the middle water-cooled wall 22; a flue gas channel is arranged on the middle water-cooled wall 22; firstly, the utility model can increase the contact area between the membrane wall tube panel system 2 and the high-temperature flue gas by arranging the front membrane wall 21, the middle water wall 22 and the rear water wall 23, thereby better realizing the absorption and utilization of heat; in actual deployment, the membrane wall panel system 2 includes, in addition to the front membrane water wall 21, the middle water wall 22, and the rear water wall 23; still include the side direction water-cooling wall in fact the utility model discloses in use through preceding membrane wall 21, middle water-cooling wall 22, rear portion water-cooling wall 23 and the cooperation of side direction water-cooling wall, make the utility model discloses membrane wall tube panel system 2 self has just constituteed a closed (except some intercommunication hole structures) tube structure, so the utility model discloses in can use membrane wall tube panel system 2 to replace traditional 11 planking structures of circulating furnace body completely.
In addition, the flue gas inlet of the utility model is communicated with the front membrane type water-cooled wall 21, and the flue gas enters the area between the front membrane type water-cooled wall 21 and the middle water-cooled wall 22 through the flue gas inlet, namely the first convection cavity 1-1 below; then enters a region (a second convection region below) between the rear water-cooled wall 23 and the middle water-cooled wall 22 through a flue gas channel arranged at the lower end of the middle water-cooled wall 22; through the arrangement, the normal flow of high-temperature flue gas in the membrane wall tube panel system 2 is facilitated.
Furthermore, in the present invention, the flue gas channel is disposed at one end of the middle water-cooling wall 22 far away from the flue inlet 15; the main purpose of such design is in order to increase the motion route of high temperature flue gas, make full use of the heat in the high temperature flue gas when making things convenient for follow-up use.
Furthermore, a first convection cavity 1-1 is formed between the front membrane type water-cooling wall 21 and the middle water-cooling wall 22; a second convection cavity 1-2 is formed between the middle water-cooled wall 22 and the rear water-cooled wall 23; the first convection cavity 1-1 is communicated with the second convection cavity 1-2 through a flue gas channel; the arrangement of the first convection cavity 1-1 and the second convection cavity 1-2 facilitates the arrangement of subsequent components, and can realize the partition arrangement of the components; the messy parts are avoided, and meanwhile, the flowing direction of high-temperature flue gas can be controlled through the limitation of the first convection cavity 1-1 and the second convection cavity 1-2, so that the problem that the traditional boiler flue gas is freely overflowed and scattered in the boiler is avoided.
Further, in the present invention, the evaporator system includes a first evaporator 31, a second evaporator 32, and a third evaporator 33; the first evaporator 31 and the second evaporator 32 are disposed within the first convection chamber 1-1; the third evaporator 33 is arranged in the second convection chamber 1-2; the first evaporator 31 and the second evaporator 32 of the present invention contact with the high temperature flue gas first, and generate steam in the first evaporator 31 and the second evaporator 32 through heat exchange; the third evaporator 33 is arranged in the second convection cavity 1-2 and can utilize the heat in the high-temperature flue gas with tail heat in the subsequent process; the sufficiency of the steam entering the steam drum 13 can be ensured through the cooperation of the three evaporators.
Further, in the present invention, the first evaporator 31 and the second evaporator 32 are connected to the front membrane type water-cooled wall 21; the third evaporator 33 is connected to the rear water-cooled wall 23; through such arrangement, can be so that the evaporimeter system is linked together with diaphragm type wall pipe screen system 2, not only can be better realize the interior thermal absorption of high temperature flue gas, can also evaporate the sufficiency of water liquid in the evaporimeter, avoid the evaporimeter dry combustion method scheduling problem to appear.
Further, in the present invention, the superheater system includes a superheater 4, and the superheater 4 is disposed in the circulating furnace body 11; the superheater 4 is arranged in a second convection cavity 1-2 of the circulating furnace body 11; the superheater 4 of the utility model heats the saturated steam supplied by the steam pocket 13 into superheated steam with a certain superheat degree by absorbing the heat in the high-temperature flue gas; the steam turbine generator set is convenient to supply for a subsequent steam turbine generator set for use.
Further, in the present invention, the third evaporator 33 is disposed above the superheater 4; due to the arrangement, the third evaporator 33 is positioned at the last step of the superheater 4 utilizing the high-temperature flue gas by utilizing the heat of the high-temperature flue gas, namely, the high-temperature flue gas can exchange heat with the superheater 4 firstly and then exchange heat with the third evaporator 33, and the arrangement mode can ensure that when the high-temperature flue gas is in contact with the superheater 4, the temperature in the high-temperature flue gas can also heat the saturated steam supplied by the steam pocket 13 into superheated steam with a certain superheat degree; the third evaporator 33 is more equivalent to the subsequent utilization of waste heat, and the utilization efficiency of heat in the high-temperature flue gas is increased.
In addition, the superheater 4 is connected with a water spray desuperheater; through the setting of water spray desuperheater, can be so that steam temperature can maintain a stable level, avoid too high steam damage turbo generator set, also exactly, the utility model discloses a steam spray desuperheater's setting can realize turbo generator set's safe operation.
Further, in the present invention, the economizer system includes a high temperature economizer 51 and a low temperature economizer 52 disposed in the exhaust furnace body 12; the high-temperature coal economizer 51 is arranged close to the connecting pipeline, and the low-temperature coal economizer 52 is arranged close to the flue outlet 16; the high-temperature coal economizer 51 and the low-temperature coal economizer 52 are distributed at intervals; the utility model can ensure that the heat in the flue gas can be absorbed more fully by the matching use of the high-temperature coal economizer 51 and the low-temperature coal economizer 52; reducing the heat of the discharged flue gas.
Additionally, the utility model discloses be equipped with the soot blowing mouth on the circulating furnace body 11, the soot blowing mouth is arranged in over heater 4's side, the utility model discloses a soot blowing mouth's setting makes things convenient for follow-up use to use soot blowing device to blow the soot operation to over heater 4 heating surface, has increased over heater 4's life to a certain extent.
Concretely;
the utility model discloses a novel waste heat boiler; the utility model discloses a waste heat boiler can be applicable to the rice husk gasification and burn back high temperature flue gas waste heat utilization.
The utility model discloses a waste heat boiler adopts natural circulation, namely the mode of natural water circulation mode, the circulation furnace body 11 in the boiler body 1 adopts the self-supporting structure of the corner tube boiler, the tail smoke exhaust furnace body 12 of the boiler body 1 adopts the frame supporting structure, and the membrane wall tube panel system 2 (full membrane water cooling wall) is arranged around the furnace chamber in the middle circulation furnace body 11 of the utility model; a superheater 4 is also arranged in the furnace body, a water spray desuperheater is arranged below the furnace body, the superheater 4 water spray desuperheater is connected, and in addition, a high-low temperature secondary economizer is arranged in the smoke exhaust furnace body 12.
In the utility model, because the membrane type wall tube panel system 2 is arranged, the boiler body 1 forms a vertical three channel (the channels in the first convection cavity 1-1, the second convection cavity 1-2 and the smoke exhaust furnace body 12 respectively); a membrane wall tube panel system 2, a superheater system, an economizer system, a boiler drum 13 and a boiler body 1 pipeline system are arranged inside or outside the boiler body 1.
Because the innovation point of the utility model is not on the pipeline system of the boiler body 1, for example, the boiler body 1 also comprises a downcomer 14, a steam outlet pipe and the like; because the innovation point of the utility model is not on each single connecting pipeline, the utility model does not set forth the existing pipeline structure of the boiler body 1 in detail; only the arrangement positions of the respective systems of the present invention and the self structure of the boiler body 1 will be explained.
In the utility model, a first evaporator 31 and a second evaporator 32 are arranged in a first convection cavity 1-1, then a superheater 4 is arranged below the second convection cavity 1-2, a third evaporator 33 is arranged above the second convection cavity, and a membrane wall tube panel is arranged on the inner wall of a furnace body; the utility model discloses a such arrangement can make the high temperature flue gas obtain abundant cooling before getting into over heater 4 region to can reduce the high temperature corrosion of over heater 4 heating surface.
In practical implementation, the boiler structure adopts vertical arrangement; a single-drum horizontal natural circulation water pipe boiler with an angle pipe structure is adopted.
The waste heat flue gas of the boiler enters the boiler body 1 through a flue inlet 15 at the top of the boiler, flows through the first convection cavity 1-1, the flue gas channel and the second convection cavity 1-2, and is finally exhausted out of the boiler through the smoke exhaust body 12.
The flue gas inlet is arranged at the upper part of the boiler, and the central elevation of the flue gas inlet is 11200mm. The first evaporator 31 and the second evaporator 32 are attached to the front wall water wall with the transverse pitch of 200mm, and the third evaporator 33 is attached to the rear wall water wall with the transverse spacing of 100mm.
In order to reduce the exhaust gas temperature and avoid low-temperature corrosion, the tail part is provided with a high-temperature coal economizer 52 and a low-temperature coal economizer 52, the high-temperature coal economizer 51 adopts a light pipe structure, the low-temperature coal economizer 52 adopts a wear-resistant and corrosion-resistant cast iron pipe structure, and the elevation of the exhaust port is 4950mm.
The utility model discloses exhaust-heat boiler mainly includes following part:
the waste heat boiler comprises a boiler drum 13 arranged on the boiler body 1.
The design and manufacture of the steam pocket 13 are both required to meet the technical requirements of relevant national laws and regulations.
In actual practice, the steam drum 13 comprises a boiler barrel; the inner diameter of the boiler barrel is 1400mm, the wall thickness is 16mm, the full length is 5800mm, and the material adopts a Q245R (GB/T713-2014) boiler pan.
The drum is welded and fixed on the centralized downcomer 14 and the steam-water eduction tube, can expand freely, and the end sockets at both ends are provided with 300 multiplied by 400 manhole devices.
The steam pocket 13 has enough large volume and steam space, is provided with a mature and perfect reliable steam-water separation device, and is internally provided with a corrugated plate steam equalizing hole plate as a secondary steam-water separation device to ensure the quality of steam-water.
Boiler feed water is uniformly distributed into a steam-water communication box at the lower part of the steam drum 13 through 1 feed water distribution pipe DN80, and measures such as mature and reasonable pipe hole (seat) structural style and the like are adopted to prevent cracks from being generated near the pipe holes due to thermal fatigue.
The steam drum 13 adopts two direct-reading water level meters; the normal water level of the steam drum 13 is the central line of the steam drum 13, the allowable highest and lowest safe water levels (alarm water levels) are 75mm from top to bottom, and a water level gauge and a balance container (three sets) are arranged for indication, adjustment, alarm and protection.
The steam drum 13 is provided with pipe seats and corresponding valves for measuring heat supply, adding chemicals, continuously discharging sewage, emergently discharging water, sampling furnace water and steam, a safety valve, an air valve and the like.
The waste heat boiler comprises a superheater 4 arranged in the boiler body 1;
the superheater 4 is arranged at the lower end of the second convection cavity 1-2 of the circulating filtration, and saturated steam from the drum of the steam drum 13 firstly passes through the superheater 4 from top to bottom and then is sent out after passing through the horizontally arranged water spray desuperheater.
The superheater 4 adopts a pipe specification of phi 32x3, and adopts 12Cr1 MoVG GB/T5310 as a material.
The waste heat boiler includes a high-temperature economizer and a low-temperature economizer 52 provided in the boiler body 1.
The high-temperature coal economizer 51 adopts a pipe specification of phi 32x3 and adopts 20GB/T3087 as a material.
The low-temperature economizer 52 is manufactured using a cast iron pipe.
In addition, in order to facilitate subsequent maintenance and use, a platform staircase 6 is arranged on the outer side surface of the boiler body 1; the utility model discloses well platform staircase 6 mainly adopts two sides to concentrate and arranges, and the inclination adopts 45, and the staircase width is 600mm, marks time and adopts anti-skidding decorative pattern steel sheet.
A platform, a walkway and an escalator adopting hot galvanizing grids.
Meanwhile, contact platforms are arranged at the necessary layers of the front, middle and back, so that the follow-up operation, maintenance, inspection and passage are facilitated.
Obviously the specific implementation of the present invention is not limited by the above-mentioned manner, and various insubstantial improvements made by the method concept and technical solution of the present invention are all within the protection scope of the present invention.
Claims (10)
1. A novel waste heat boiler is characterized by comprising a boiler body, wherein a flue inlet and a flue outlet are formed in the boiler body;
the boiler body comprises a circulating furnace body and a smoke exhaust furnace body, and the circulating furnace body is communicated with the smoke exhaust furnace body through a communication pipeline; the flue inlet is arranged on the circulating furnace body, and the flue outlet is arranged on the smoke exhaust furnace body.
2. The novel waste heat boiler as claimed in claim 1, characterized in that a membrane type wall tube panel system, an evaporator system, a superheater system and an economizer system are arranged in the boiler body; the membrane type wall tube panel system, the evaporator system and the superheater system are arranged in the circulating furnace body; the economizer system is arranged in the smoke exhaust furnace body.
3. The novel waste heat boiler of claim 2, wherein the membrane-wall panel system comprises a front membrane water wall, a middle water wall and a rear water wall arranged in the circulating furnace body; the front membrane type water-cooled wall, the middle water-cooled wall and the rear water-cooled wall are sequentially distributed at intervals; the front membrane type water-cooled wall and the rear water-cooled wall are distributed on two sides of the middle water-cooled wall; and a flue gas channel is arranged on the middle water-cooled wall.
4. The novel waste heat boiler as claimed in claim 3, characterized in that the flue gas channel is arranged at one end of the middle water-cooled wall far away from the flue inlet.
5. The novel waste heat boiler as claimed in claim 3, characterized in that a first convection chamber is formed between the front membrane water wall and the middle water wall; a second convection cavity is formed between the middle water-cooled wall and the rear water-cooled wall; the first convection cavity is communicated with the second convection cavity through a flue gas channel.
6. The novel waste heat boiler of claim 5, wherein the evaporator system comprises a first evaporator, a second evaporator and a third evaporator; the first evaporator and the second evaporator are arranged in a first convection chamber; the third evaporator is disposed within the second convection chamber.
7. The novel waste heat boiler as claimed in claim 6, characterized in that the first evaporator and the second evaporator are connected to a front membrane water wall; and the third evaporator is connected to the rear water wall.
8. The novel heat recovery boiler of claim 7, wherein the superheater system comprises a superheater disposed within the circulating furnace body; the superheater is arranged in a second convection cavity of the circulating furnace body.
9. The novel heat recovery boiler of claim 8, wherein the third evaporator is arranged above the superheater; the superheater is connected with a water spray desuperheater.
10. The novel waste heat boiler as claimed in claim 2, wherein the economizer system comprises a high temperature economizer and a low temperature economizer arranged in the flue gas exhaust body; the high-temperature economizer is arranged close to the connecting pipeline, and the low-temperature economizer is arranged close to the flue outlet; the high-temperature coal economizer and the low-temperature coal economizer are distributed at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223101980.3U CN218626801U (en) | 2022-11-22 | 2022-11-22 | Novel exhaust-heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223101980.3U CN218626801U (en) | 2022-11-22 | 2022-11-22 | Novel exhaust-heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218626801U true CN218626801U (en) | 2023-03-14 |
Family
ID=85448843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223101980.3U Active CN218626801U (en) | 2022-11-22 | 2022-11-22 | Novel exhaust-heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218626801U (en) |
-
2022
- 2022-11-22 CN CN202223101980.3U patent/CN218626801U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI617773B (en) | Horizontal circulating fluidized bed superheated steam boiler | |
| CN206496353U (en) | A kind of steam air pre-heating system of garbage burning boiler | |
| CN218626801U (en) | Novel exhaust-heat boiler | |
| CN201582780U (en) | Vertical three-pass fire pipe boiler | |
| CN115751282A (en) | Novel exhaust-heat boiler | |
| CN203364148U (en) | Biomass boiler with own first-class multi-pipe cyclone dust removal devices and rear smoke channel thereof | |
| CN215982491U (en) | Pipe frame type waste heat recovery boiler matched with garbage pyrolysis incineration system | |
| CN207316877U (en) | Biomass fuel fire tube boiler | |
| CN203147726U (en) | Pi-structural catalytic unit CO incineration waste heat boiler | |
| CN112283681B (en) | Angle tube type boiler with tail quenching heating surface | |
| CN210832059U (en) | Power station boiler whitening device | |
| CN211902806U (en) | Waste incineration waste heat boiler system with flue gas reheating function | |
| CN211902823U (en) | Structure for retarding high-temperature corrosion of convection heating surface of waste incineration waste heat boiler | |
| CN111207373A (en) | Waste incineration waste heat boiler system with flue gas reheating function | |
| CN202188627U (en) | Safe and energy-saving angle pipe hot-water boiler | |
| CN212408635U (en) | Circulating fluidized bed boiler for burning biomass | |
| CN205860468U (en) | A kind of stack boiler | |
| RU182264U1 (en) | Rectangular cross-section boiler | |
| CN110645586A (en) | Power station boiler whitening device and working method thereof | |
| CN112902132B (en) | Three return stroke water pipe boiler | |
| CN110793012A (en) | Pure-burning biomass environment-friendly circulating fluidized bed boiler water vapor system | |
| CN205504940U (en) | Be applied to biomass fuel burner's boiler | |
| CN203203022U (en) | Boiler making full use of yellow phosphorus tail gas | |
| CN214949072U (en) | Waste incineration exhaust-heat boiler | |
| CN215372388U (en) | Reheating steam system and steam-steam heat exchanger of high-parameter waste incineration waste heat boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |