CN211570541U - Heat exchanger with turbulence coil pipe inside ascending pipe of coke oven - Google Patents
Heat exchanger with turbulence coil pipe inside ascending pipe of coke oven Download PDFInfo
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- CN211570541U CN211570541U CN202020081551.6U CN202020081551U CN211570541U CN 211570541 U CN211570541 U CN 211570541U CN 202020081551 U CN202020081551 U CN 202020081551U CN 211570541 U CN211570541 U CN 211570541U
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Abstract
The utility model discloses a turbulent flow coil pipe heat exchanger in a coke oven ascending pipe, relating to the technical field of coke oven heat exchange; the heat storage layer and the ribs are respectively arranged on the inner side wall of the sleeve, the ribs extend out of the heat storage layer, the ribs are in direct contact with raw coke oven gas, the surface of the heat storage layer is provided with a radiation absorption layer, the turbulence piece is arranged at the central position of the ascending pipe, the upper end of the turbulence piece is connected with a driving mechanism, the outer side wall of the connecting rod is uniformly connected with a plurality of umbrella-shaped bodies consisting of three cylindrical steel bars and stirrups, the three cylindrical steel bars are uniformly distributed, the three cylindrical steel bars and the connecting rod are 45 degrees, and the inner side walls of the three cylindrical steel bars are all connected with the stirrups; the turbulent flow piece of the utility model forcibly stirs the crude gas through autonomous rotation to form forced convection heat transfer, thereby improving the scouring of the crude gas on the inner wall of the ascending pipe, increasing the convection heat transfer coefficient and strengthening the heat transfer; the heat conduction capability is enhanced; prevent the sleeve from overheating and prevent the inner wall of the riser from coking.
Description
Technical Field
The utility model belongs to the technical field of the coke oven heat transfer, concretely relates to inside vortex coil pipe heat exchanger that coke oven rises.
Background
The traditional coke oven ascending pipe is an adiabatic gas channel, the temperature of the crude gas is between 650 ℃ and 850 ℃, the crude gas is generally cooled by spraying ammonia water, the temperature of the crude gas is reduced from 650 ℃ to 850 ℃ to about 80 ℃, and then the crude gas enters the next process flow for treatment, a large amount of ammonia water is required to be sprayed in the process, the cost is high, the environment is polluted, and more importantly, the heat of the crude gas is wasted, and the energy is not fully utilized, so that the energy waste is caused.
SUMMERY OF THE UTILITY MODEL
The problems that the existing coke oven ascending pipe wastes sprayed ammonia water when being cooled, the cost is high, and the environment is polluted are solved; the utility model aims to provide a vortex coil pipe heat exchanger in the ascending pipe of coke oven.
The utility model relates to a turbulent flow coil pipe heat exchanger in a coke oven ascending pipe, which comprises a coil pipe, a heat conduction layer, a sleeve, a heat accumulation layer, ribs and turbulent flow pieces; the heat-storage type heat-transfer pipe comprises a sleeve, a heat-storage layer, fins, a heat-transfer layer, a turbulent flow piece, a driving mechanism and a heat-transfer layer, wherein the coil pipe is arranged on the outer side wall of the sleeve, the heat-transfer layer is arranged between the sleeve and the coil pipe and between the coil pipe and the coil pipe, the heat-storage layer and the fins are respectively arranged on the inner side wall of the sleeve, the fins extend out of the heat-storage layer, the fins are directly contacted with raw coke oven gas, the surface of the heat-storage layer is provided with a radiation absorption layer, the; the umbrella-shaped body that the several is constituteed by three cylinder rod iron, stirrup that is connected with on the lateral wall of connecting rod evenly, and three cylinder rod iron evenly distributed, and three cylinder rod iron is 45 with the connecting rod, all is connected with the stirrup on the inside wall of three cylinder rod iron.
Preferably, the fins are heat-resistant steel fins, the length of each fin is equal to that of the sleeve, the cross sections of the fins are isosceles triangles, the bottom side is 10mm, the height of each fin is 90mm, and 30-60 fins are uniformly distributed along the inner wall of the sleeve.
Preferably, the spoiler is arranged from the outlet of the riser up to a height of 0.5m from the inlet of the riser.
Preferably, the thickness of the heat conducting layer is 40 mm.
Preferably, the wall thickness of the sleeve is 8 mm.
Preferably, the wall thickness of the heat storage layer is 20 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
firstly, destroying a convection boundary layer and a heat transfer boundary layer, and simultaneously expanding the heat transfer area with raw coke oven gas; the flow disturbing piece forcibly stirs the raw gas through autonomous rotation to form forced convection heat transfer, so that the scouring of the raw gas on the inner wall of the ascending pipe is improved, the convection heat transfer coefficient is increased, and the heat transfer is enhanced;
secondly, enhancing the heat conduction capability; the heat storage layer has strong heat storage capacity, can ensure the temperature stability of the inner wall of the ascending pipe in the production period of the coke oven, and can prevent the sleeve from overheating and the inner wall of the ascending pipe from coking.
Drawings
For ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a top view of the spoiler of the present invention.
In the figure: 1-coiled tubing; 2-heat conducting layer; 3-a sleeve; 4-heat storage layer; 5-ribs; 6-a spoiler; 61-cylindrical steel rod; 62-stirrup; 63-connecting rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the structures and/or process steps that are closely related to the solution according to the invention are shown in the drawings, while other details that are not relevant to the invention are omitted.
As shown in fig. 1 and 2, the following technical solutions are adopted in the present embodiment: the heat-conducting sleeve comprises a coil pipe 1, a heat-conducting layer 2, a sleeve 3, a heat-storing layer 4, fins 5 and a turbulence piece 6; the outer side wall of the sleeve 3 is provided with a coil pipe 1, heat conducting layers 2 are arranged between the sleeve 3 and the coil pipe 1 and between the coil pipe 1 and the coil pipe 1, the thickness of each heat conducting layer 2 is 40mm, the heat conducting layers are arranged between the coils and between the coils and the sleeve, and high-heat-conductivity and high-heat-storage materials are adopted; the outer side of the filling layer is provided with a heat-insulating layer; the inner side wall of the sleeve 3 is respectively provided with a heat storage layer 4 and fins 5, the sleeve is made of heat-resistant steel, and the wall thickness is 8 mm; the fins 5 extend out of the heat storage layer 4, the fins 5 are in direct contact with raw coke oven gas, the surface of the heat storage layer 4 is provided with a radiation absorption layer, the wall thickness of the heat storage layer 4 is 20mm, and the heat storage layer is formed by compounding special silicon carbide, brown corundum and other materials which are high temperature resistant, corrosion resistant and strong in heat storage capacity; the turbulence piece 6 is arranged at the central position of the ascending pipe, the upper end of the turbulence piece 6 is connected with a driving mechanism, and the surface of the turbulence piece is provided with a nano ceramic coating which has the functions of high temperature resistance, corrosion resistance and self-cleaning; the turbulence piece is driven to rotate by the driving mechanism, the turbulence piece is arranged from the outlet of the ascending pipe to the position 0.5m away from the inlet of the ascending pipe, as shown in figures 2 and 3, the turbulence piece is composed of 8 sections of umbrella-shaped structures, each section of umbrella-shaped structure is composed of three cylindrical steel bars with the length of about 200mm, an included angle of 45 degrees is formed between each section of umbrella-shaped structure and the vertical direction, a circle of stirrup is arranged among the three steel bars, the rotating radius of the umbrella-shaped structure is about 150mm, and the rotating speed is 60-300 r/min; the surfaces of all the turbulence members are provided with nano ceramic coatings which have the functions of high temperature resistance, corrosion resistance and self-cleaning.
As shown in fig. 3, the spoiler 6 includes a cylindrical steel bar 61, a stirrup 62, and a connecting rod 63; the even umbrella-shaped body that is connected with the several and comprises three cylinder rod iron 61, stirrup 62 on the lateral wall of connecting rod 63, and three cylinder rod iron 61 evenly distributed, and three cylinder rod iron 61 is 45 with connecting rod 63, all is connected with stirrup 62 on the inside wall of three cylinder rod iron 61.
Furthermore, the fins 5 are heat-resistant steel fins, the length of each fin 5 is equal to that of the sleeve, the cross section of each fin 5 is an isosceles triangle, the bottom side is 10mm, the height of each fin is 90mm, and 30-60 fins are uniformly arranged along the inner wall of the sleeve.
Further, the spoiler is provided from the outlet of the rising pipe up to a height of 0.5m from the inlet of the rising pipe.
The specific embodiment provides a turbulent flow coil pipe heat exchanger in a coke oven ascending pipe, aiming at the common problem that the heat exchange efficiency of the existing coke oven ascending pipe coil pipe heat exchanger is low. Firstly, longitudinal ribs are arranged on the inner wall of the ascending pipe and welded on a sleeve, the ribs are arranged along the height direction of the ascending pipe, the section of each rib is an isosceles triangle, the height of each rib is the optimal height, a convection boundary layer and a heat transfer boundary layer are damaged, and meanwhile, the heat transfer area between the ribs and raw coke oven gas is expanded; secondly, a rotatable turbulence member is arranged at the center of the ascending pipe, and the turbulence member forcibly stirs the raw gas through autonomous rotation to form forced convection heat exchange, so that the scouring of the raw gas on the inner wall of the ascending pipe is improved, the convection heat exchange coefficient is increased, and the heat exchange is enhanced; high-thermal-conductivity materials are filled between the coil pipes and the sleeves, so that the thermal conductivity is enhanced; and finally, a heat storage layer is attached to the inner wall of the sleeve of the ascending pipe, and the heat storage layer has strong heat storage capacity, can ensure the temperature stability of the inner wall of the ascending pipe in the production period of the coke oven, and can prevent the sleeve from overheating and the inner wall of the ascending pipe from coking.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A heat exchanger with turbulence coil pipes in a coke oven ascending pipe is characterized in that: the heat-accumulating type heat-; the heat-storage type heat-transfer pipe comprises a sleeve, a heat-storage layer, fins, a heat-transfer layer, a turbulent flow piece, a driving mechanism and a heat-transfer layer, wherein the coil pipe is arranged on the outer side wall of the sleeve, the heat-transfer layer is arranged between the sleeve and the coil pipe and between the coil pipe and the coil pipe, the heat-storage layer and the fins are respectively arranged on the inner side wall of the sleeve, the fins extend out of the heat-storage layer, the fins are directly contacted with raw coke oven gas, the surface of the heat-storage layer is provided with a radiation absorption layer, the; the umbrella-shaped body that the several is constituteed by three cylinder rod iron, stirrup that is connected with on the lateral wall of connecting rod evenly, and three cylinder rod iron evenly distributed, and three cylinder rod iron is 45 with the connecting rod, all is connected with the stirrup on the inside wall of three cylinder rod iron.
2. The coke oven ascension pipe internal turbulator coil heat exchanger of claim 1, wherein: the fins are heat-resistant steel fins, the length of each fin is equal to that of the sleeve, the cross sections of the fins are isosceles triangles, the bottom side length is 10mm, the height is 90mm, and 30-60 fins are uniformly distributed along the inner wall of the sleeve.
3. The coke oven ascension pipe internal turbulator coil heat exchanger of claim 1, wherein: the spoiler is arranged from the outlet of the rising pipe to a height of 0.5m from the inlet of the rising pipe.
4. The coke oven ascension pipe internal turbulator coil heat exchanger of claim 1, wherein: the thickness of the heat conduction layer is 40 mm.
5. The coke oven ascension pipe internal turbulator coil heat exchanger of claim 1, wherein: the wall thickness of the sleeve is 8 mm.
6. The coke oven ascension pipe internal turbulator coil heat exchanger of claim 1, wherein: the wall thickness of the heat storage layer is 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020081551.6U CN211570541U (en) | 2020-01-15 | 2020-01-15 | Heat exchanger with turbulence coil pipe inside ascending pipe of coke oven |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020081551.6U CN211570541U (en) | 2020-01-15 | 2020-01-15 | Heat exchanger with turbulence coil pipe inside ascending pipe of coke oven |
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| CN211570541U true CN211570541U (en) | 2020-09-25 |
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| CN202020081551.6U Active CN211570541U (en) | 2020-01-15 | 2020-01-15 | Heat exchanger with turbulence coil pipe inside ascending pipe of coke oven |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353557A (en) * | 2022-01-10 | 2022-04-15 | 江苏道和环保科技有限公司 | Coke oven raw gas waste heat recovery device |
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2020
- 2020-01-15 CN CN202020081551.6U patent/CN211570541U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353557A (en) * | 2022-01-10 | 2022-04-15 | 江苏道和环保科技有限公司 | Coke oven raw gas waste heat recovery device |
| CN114353557B (en) * | 2022-01-10 | 2023-11-03 | 江苏道和环保科技有限公司 | Raw coke oven gas waste heat recovery device |
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