CN216431771U - Vaporization flue for waste heat boiler - Google Patents
Vaporization flue for waste heat boiler Download PDFInfo
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- CN216431771U CN216431771U CN202122539021.9U CN202122539021U CN216431771U CN 216431771 U CN216431771 U CN 216431771U CN 202122539021 U CN202122539021 U CN 202122539021U CN 216431771 U CN216431771 U CN 216431771U
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Abstract
The utility model provides a vaporization flue for exhaust-heat boiler relates to exhaust-heat boiler technical field. The vaporization flue comprises a sealing cylinder II (11), a round header (1) and a plurality of heat exchange tubes, wherein two ends of the sealing cylinder II (11) are respectively provided with a sealing cylinder I (9), one end of the sealing cylinder II (11) is provided with a descending tube joint (6) and a main tube header I (12), the other end of the sealing cylinder II (11) is provided with an ascending tube joint (14) and a main tube header II (13), the sealing cylinder II (11) is provided with a plurality of reinforcing rib plates (10), two ends of the sealing cylinder I (9) are respectively provided with a flange (8), each sealing cylinder I (9) is provided with a sewage discharge tube joint (7), each heat exchange tube comprises a heat exchange tube I (2), a heat exchange tube II (3), a heat exchange tube III (4) and a heat exchange tube IV (5), and each heat exchange tube is communicated with the round header (1). The utility model provides a because of the flue gas high temperature who gets into circulating boiler leads to the technical problem that heat exchange efficiency is low.
Description
Technical Field
The utility model relates to a waste heat boiler technical field, concretely relates to vaporization flue for waste heat boiler.
Background
The boiler is an energy converter, which is a device for heating working medium water or other fluids to certain parameters by using heat energy released by fuel combustion or other heat energy. The boiler is divided into a boiler part and a furnace part. The boiler is a pressure-receiving component for containing water and steam, heating, vaporizing and separating water from steam, and the furnace is a place for burning fuel or releasing heat by other heat energy, and comprises combustion equipment, a combustion chamber, a heat-releasing flue and the like. The boiler and the furnace are subjected to a heat conversion process, and the interface of heat release and heat absorption is called a heating surface.
In patent CN201621256199.5, a waste heat boiler including a vaporization flue is disclosed, which includes a vaporization flue and a waste heat boiler, where the vaporization flue includes a flue body for leading out flue gas in a submerged arc furnace and an evaporation part arranged outside the flue body; the waste heat boiler comprises a shell side part and a tube side part, the flue body is connected with the tube array air cooler through a first pipeline, the flue body is further connected with an air inlet of the heat exchange tube through a second pipeline, an air inlet pipe of the dust removal mechanism is connected with an exhaust pipe of the tube array air cooler through a third pipeline, and an air inlet pipe of the dust removal mechanism is connected with an exhaust pipe of the heat exchange tube through a fourth pipeline. The beneficial effect of this patent is: the waste heat of the submerged arc furnace is effectively utilized, and the loss and waste of the waste heat are avoided; the method takes water as a medium, adopts a natural circulation system, and obtains steam by utilizing high-temperature flue gas released by the high-temperature flue gas of the submerged arc furnace. But the effect of air cooling is very limited.
In patent CN201610548106.4, a flue gas treatment device and a rotary hearth furnace high-temperature high-dust flue gas treatment system equipped with the same are disclosed, the treatment device includes a settling furnace, a high-temperature exhaust-heat boiler, a low-temperature exhaust-heat boiler and a steam drum, and at least part of the heated wall surface of the settling furnace is a water-cooled wall; the steam pocket is provided with a water inlet, a water outlet, an air inlet and an air outlet, the water outlet is communicated with the heat exchange medium inlet of each water-cooled wall, the air inlet is communicated with the heat exchange medium outlet of each water-cooled wall, the water inlet is communicated with the heat exchange medium outlet of the low-temperature waste heat boiler, and the air outlet is communicated with the heat exchange medium inlet of the high-temperature waste heat boiler. According to the method, the waste heat utilization rate and the effect of the flue gas can be effectively improved by reducing the heating surface in the settling furnace, the situation that the body flue of the superheater and the economizer and the follow-up flue are blocked is reduced, and the corrosion situation of the flue gas on equipment is effectively improved.
In patent CN201620730530.6, a system for utilizing flue gas waste heat of a rotary hearth furnace is disclosed, comprising a settling furnace, a high temperature waste heat boiler, a low temperature waste heat boiler, a steam drum and a waste heat utilization subsystem, wherein at least part of the heated wall surface of the settling furnace is a water-cooled wall; the water outlet of the steam drum is communicated with the heat exchange medium inlet of each water-cooled wall, the air inlet is communicated with the heat exchange medium outlet of each water-cooled wall, the water inlet is communicated with the heat exchange medium outlet of the low-temperature waste heat boiler, and the air outlet is communicated with the heat exchange medium inlet of the high-temperature waste heat boiler; the waste heat utilization subsystem is communicated with a heat exchange medium outlet of the high-temperature waste heat boiler through a steam pipeline. According to the method, the waste heat utilization rate and the effect of the flue gas can be effectively improved by reducing the heating surface in the settling furnace, the situation that the body flue of the superheater and the economizer and the follow-up flue are blocked is reduced, and the corrosion situation of the flue gas on equipment is effectively improved.
In patent CN201621256200.4, a vaporization flue is disclosed, which comprises a flue body and at least one evaporation unit disposed outside the flue body, the evaporation unit includes a heated tube layer attached to the outer side of the flue body and a heat-resistant insulating layer coated outside the heated tube layer, the heated tube layer includes a heated tube attached to the flue body, and the water inlet end and the water outlet end of the heated tube are both communicated with a steam pocket. The beneficial effect of this patent is: the device takes water as a medium, adopts a natural circulation system, and obtains steam by utilizing high-temperature flue gas released by the high-temperature flue gas of the submerged arc furnace; the submerged arc furnace waste heat recycling device is simple in structure, achieves effective utilization of waste heat of the submerged arc furnace, and avoids loss and waste of the waste heat.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a vaporization flue for exhaust-heat boiler. Through setting up four heat exchange tubes, the instantaneous fluctuation of buffering high temperature flue gas makes the flue gas get into circulating boiler with suitable temperature, improves heat exchange efficiency. The technical problem of low heat exchange efficiency caused by overhigh temperature of the flue gas entering the circulating boiler is solved.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a vaporization flue for exhaust-heat boiler, includes sealed section of thick bamboo two, circle collection case and a plurality of heat exchange tube, wherein:
two ends of the sealing cylinder II are respectively provided with a sealing cylinder I;
one end of the sealing cylinder II is provided with a descending pipe joint and a main pipe header I, and the other end of the sealing cylinder II is provided with an ascending pipe joint and a main pipe header II;
a plurality of reinforcing rib plates are arranged on the second sealing cylinder;
flanges are arranged at two ends of the first sealing cylinder;
a drain pipe joint is arranged on each sealing cylinder I;
the heat exchange tubes comprise a first heat exchange tube, a second heat exchange tube, a third heat exchange tube and a fourth heat exchange tube;
each heat exchange tube is communicated with the round header.
Alternatively or preferably, the round headers comprise an upper round header and a lower round header.
Alternatively or preferably, the flange is made of Q235B.
Alternatively or preferably, the first sealing cylinder and the second sealing cylinder are both made of 12Cr1 MoV.
Alternatively or preferably, the heat exchange tubes, the round header, the first mother tube header and the second mother tube header are all made of GB 3087.
Based on the technical scheme, the following technical effects can be generated:
the utility model provides a pair of a vaporization flue for exhaust-heat boiler for ferrosilicon stove smelts flue gas waste heat recovery, instantaneous fluctuation when buffering high temperature flue gas gets into circulating boiler. The beneficial effects include:
(1) the utility model is provided with a plurality of heat exchange tubes including a first heat exchange tube, a second heat exchange tube, a third heat exchange tube and a fourth heat exchange tube, which can carry out water-cooling to the high-temperature flue gas and preheat the cooling water at the same time, thus being convenient for converting the water into steam for power generation;
(2) the utility model can avoid the problem that the flue gas ash is melted and condensed in the boiler due to the overhigh flue gas temperature;
(3) the utility model can effectively improve the dust deposition problem and improve the heat exchange efficiency by cooling the flue gas in the vaporizing flue by water cooling;
(4) the utility model has the technical advantages of fuel saving and cost reduction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view (sectional view) of the present invention;
fig. 2 is a schematic structural view (front view) of the present invention;
fig. 3 is a schematic structural view (left side view) of the present invention;
fig. 4 is a schematic structural view (right side view) of the present invention;
the reference numbers in the figures are:
1-round header, 2-heat exchange tube I, 3-heat exchange tube II, 4-heat exchange tube III, 5-heat exchange tube IV, 6-descending tube joint, 7-blowdown tube joint, 8-flange, 9-sealing cylinder I, 10-reinforcing rib plate, 11-sealing cylinder II, 12-mother tube header I, 13-mother tube header II and 14-ascending tube joint.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1-4:
the embodiment provides a vaporization flue for exhaust-heat boiler, including two 11, the round header 1 of sealed section of thick bamboo and a plurality of heat exchange tube, wherein:
two ends of the second sealing cylinder 11 are provided with first sealing cylinders 9;
one end of the second sealing cylinder 11 is provided with a descending pipe joint 6 and a first main pipe header 12, and the other end is provided with an ascending pipe joint 14 and a second main pipe header 13;
a plurality of reinforcing rib plates 10 are arranged on the second sealing cylinder 11;
a sewage discharge pipe joint 7 is arranged on each first sealing cylinder 9;
the heat exchange tubes comprise a heat exchange tube I2, a heat exchange tube II 3, a heat exchange tube III 4 and a heat exchange tube IV 5;
each heat exchange tube is communicated with the round header 1;
in the present embodiment, the round header 1 includes an upper round header and a lower round header.
In this embodiment, the flange 8 is made of Q235B.
In the embodiment, the first sealing cylinder 9 and the second sealing cylinder 11 are both made of 12Cr1 MoV.
In the present embodiment, the heat exchange tubes, the round header 1, the first mother tube header 12 and the second mother tube header 13 are all made of GB 3087.
The embodiment has the following advantages:
this embodiment is equipped with a plurality of heat exchange tubes, can carry out the water-cooling to high temperature flue gas, also preheats for the cooling water simultaneously, is convenient for make water turn into steam power generation, and flue gas high temperature can lead to the flue gas ash to melt and condense in the boiler, carries out the water-cooling to the flue gas in the vaporization flue and can effectively improve the deposition problem, improves heat exchange efficiency to save fuel reaches economy, energy-conserving purpose. The technical problem of low heat exchange efficiency caused by overhigh temperature of the flue gas entering the circulating boiler is solved.
The working process of the vaporization flue for the waste heat boiler provided by the embodiment is as follows:
when the waste heat of the smelting flue gas of the ferrosilicon furnace is recovered, the flue gas enters the vaporization flue from the flue gas inlet, is cooled by water of the vaporization flue, buffers temperature fluctuation, enters the circulating boiler through the settling chamber, and high-temperature water enters a water circulating system of the circulating boiler to participate in circulation to become superheated steam meeting the power generation requirement.
The structures, functions, and connections disclosed herein may be implemented in other ways. For example, the above-described embodiments are merely illustrative, and for example, the heat exchange tubes one 2, two 3, three 4 and four 5 may have other installation manners, for example, a plurality of components may be combined or integrated with one another; in addition, each functional component in the embodiments herein may be integrated into one functional component, or each functional component may exist alone physically, or two or more functional components may be integrated into one functional component.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (5)
1. A vaporization flue for a waste heat boiler is characterized in that: including sealed section of thick bamboo two (11), circle collection case (1) and a plurality of heat exchange tube, wherein:
two ends of the second sealing cylinder (11) are provided with a first sealing cylinder (9);
one end of the second sealing cylinder (11) is provided with a descending pipe joint (6) and a first main pipe collecting box (12), and the other end is provided with an ascending pipe joint (14) and a second main pipe collecting box (13);
a plurality of reinforcing rib plates (10) are arranged on the second sealing cylinder (11);
flanges (8) are arranged at two ends of the first sealing cylinder (9);
a sewage discharge pipe joint (7) is arranged on each sealing cylinder I (9);
the heat exchange tubes comprise a first heat exchange tube (2), a second heat exchange tube (3), a third heat exchange tube (4) and a fourth heat exchange tube (5);
each heat exchange tube is communicated with the round header (1).
2. The vaporizing flue for a waste heat boiler of claim 1, wherein: the round header (1) comprises an upper round header and a lower round header.
3. The vaporizing flue for a waste heat boiler of claim 1, wherein: the flange (8) is made of Q235B.
4. The vaporizing flue for a waste heat boiler of claim 1, wherein: the first sealing cylinder (9) and the second sealing cylinder (11) are both made of 12Cr1 MoV.
5. The vaporizing flue for a waste heat boiler of claim 1, wherein: the heat exchange tube, the round header (1), the first main tube header (12) and the second main tube header (13) are all made of GB 3087.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122539021.9U CN216431771U (en) | 2021-10-21 | 2021-10-21 | Vaporization flue for waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122539021.9U CN216431771U (en) | 2021-10-21 | 2021-10-21 | Vaporization flue for waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216431771U true CN216431771U (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122539021.9U Active CN216431771U (en) | 2021-10-21 | 2021-10-21 | Vaporization flue for waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216431771U (en) |
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2021
- 2021-10-21 CN CN202122539021.9U patent/CN216431771U/en active Active
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