CN205088180U - Coke oven crude gas tedge heat transfer device - Google Patents
Coke oven crude gas tedge heat transfer device Download PDFInfo
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- CN205088180U CN205088180U CN201520827030.XU CN201520827030U CN205088180U CN 205088180 U CN205088180 U CN 205088180U CN 201520827030 U CN201520827030 U CN 201520827030U CN 205088180 U CN205088180 U CN 205088180U
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Abstract
The utility model provides a coke oven crude gas tedge heat transfer device, include: inner tube, a well section of thick bamboo, heat exchange assemblies, urceolus, heat insulation part, flue gas inlet flange and exhanst gas outlet flange, inner tube have the flue that runs through it, and the flue has the import that is located the inner tube lower extreme and is located the export of inner tube upper end, heat exchange assemblies sets up between an inner tube and a well section of thick bamboo to and have the clearance between the two, upper end and lower extreme have fluid issuing and fluid entry respectively, heat insulation part sets up between a well section of thick bamboo and urceolus. The utility model provides a coke oven crude gas tedge heat transfer device, heat exchange assemblies set up between an inner tube and a well section of thick bamboo to and have the clearance between an inner tube and the well section of thick bamboo, heat exchange assemblies is independent of an inner tube and a well section of thick bamboo promptly, and the suspension does not contact with the two, thereby has reduced the influence that the variation of stresses of barrel under various hot operating modes caused to heat exchange assemblies between the two, heat insulation part plays heat preservation thermal insulation function to the device, has both improved the heat exchange efficiency of device, has avoided environmental pollution again.
Description
Technical field
The utility model relates to technical field of heat exchange devices, in particular to a kind of raw coke over gas riser heat-exchanger rig.
Background technology
The high efficiente callback of the residual heat resources produced in coke making process flow process utilizes, and is to set up the energy-conservation Main way in resources conservation, eco-friendly green coke-oven plant, is also one of main path reducing coke oven energy consumption.And at present, coke-oven plant adopts the mode of spray cycle ammoniacal liquor to carry out the raw gas of cooling down high-temperature usually, and the heat causing raw gas to be taken out of is wasted, and therefore, has occurred the coke oven coke oven uprising tube heat-exchanger rig of many types, carrys out these heats of Collection utilization.But there is following problem in existing coke oven coke oven uprising tube heat-exchanger rig:
1. the making good article rate of inner tube wall high-temperature resistant anti-corrosive material is low, surface gaps rate large, thermal conductivity is not high, fingerprinting stress is not high, affects the cost of interchanger, heat exchange efficiency, stability and work-ing life;
2. in, the structure formation processing and fabricating repeatability of cylinder heat exchanging part is not high, and the alienation of quality individual diversity is large, and fabrication cycle is long, and fluid resistance is comparatively large and unstable, and cause water circulation system unstable, structure occurs stress rupture in some cases;
3. the structure formation of interchanger intake-outlet can not better mate fluid thermal parameter, easily forms vapour lock, better can not eliminate the destruction that the thermal stresses under various operating mode is formed;
4. product maximizes very difficult.
Utility model content
In order to solve the problems of the technologies described above one of at least, the purpose of this utility model be to provide a kind of reliable and stable, heat exchange efficiency is high, long service life and can the raw coke over gas riser heat-exchanger rig of modularization making.
To achieve these goals, the utility model provides a kind of raw coke over gas riser heat-exchanger rig, comprising: inner core, and described inner core has the flue running through it, and described flue has the import being positioned at described inner core lower end and the outlet being positioned at described inner core upper end; Middle cylinder, described middle jacket casing is located at the outside of described inner core, and forms interior installation cavity with described inner core; Heat-exchanging component, described heat-exchanging component is arranged in described interior installation cavity, and and between described inner core and described middle cylinder, there is gap, the lower end of described heat-exchanging component has fluid intake, and upper end has fluid outlet; Urceolus, described urceolus is set in the outside of described middle cylinder, and forms outer installation cavity with described middle cylinder; Thermal insulation barriers, described thermal insulation barriers is arranged in described outer installation cavity; Gas approach flange, described gas approach flange is arranged on the lower end of described raw coke over gas riser heat-exchanger rig, and is connected with the import of described flue; With exhanst gas outlet flange, described exhanst gas outlet flange is arranged on the upper end of described raw coke over gas riser heat-exchanger rig, and is connected with the outlet of described flue.
The raw coke over gas riser heat-exchanger rig that the utility model provides, high temperature raw gas is from the lower entrances access to plant of flue, carry out heat exchange with heat-exchanging component in flue after, discharged by upper outlet, heat-exchanging component is arranged between inner core and middle cylinder, and and between inner core and middle cylinder, there is gap, namely heat-exchanging component is independent of inner core and middle cylinder, be suspended in therebetween, do not contact with the two, thus reduce the impact that the STRESS VARIATION heat exchanging assembly of cylindrical shell under various hot operating mode cause; Arranging of thermal insulation barriers plays function of heat insulation to device, avoids internal heat to be lost in outside air, thus improves the heat exchange efficiency of device, and the impact that the heat reducing raw gas causes environment.
Specifically, existing raw coke over gas riser heat-exchanger rig, inner tube wall surface gaps rate is low, thermal conductivity is not high, and middle cylinder heat exchanging part fluid resistance is large, is subject to the impact of cylindrical shell thermal stresses change, and the raw coke over gas riser heat-exchanger rig that the utility model provides, adopt brand-new heat exchange structure, make, between heat-exchanging component and inner core and middle cylinder, there is gap, namely heat-exchanging component is the floated structure independent of inner core and middle cylinder, it breaches the physical structure of traditional heat exchangers, by inner core, middle cylinder merges comes in, inner core and middle cylinder are equivalent to the closure of heat-exchanging component, heat-exchanging component is arranged in the cavity of closure, therefore inner core, the expansion of middle cylinder and contraction can only change the size of cavity, and inner heat-exchanging component can not be affected, thus the impact that the STRESS VARIATION heat exchanging assembly of cylindrical shell under various hot operating mode causes is greatly reduced, thus improve the work-ing life of heat-exchanging component.In addition, the thermal insulation barriers be arranged between cylinder and urceolus then plays effective heat-blocking action to device, avoid the heat loss of heat-exchanging component inside in outside air, both improve the heat exchange efficiency of heat-exchanging component, the impact that the heat that turn avoid raw gas causes environment.
It should be explained that, existing raw coke over gas riser heat-exchanger rig, its heat exchange unit is embedded structure, is on the outer wall of inner core, to excavate the groove of certain depth as heat exchange structure, passes into heat transferring medium in heat exchange structure, middle cylinder carries out closing covering as shell heat exchanging structure, very not easily, and packaging effect is not good for this construction packages, and individual diversity alienation is larger, fluid resistance is comparatively large, easily forms vapour lock; And heat exchange unit is embedded on the outer wall of inner core, and inner core, there is no spacing, the impact that the STRESS VARIATION being thus subject to hot operating mode lower shell causes between middle cylinder.
In addition, the raw coke over gas riser heat-exchanger rig in above-described embodiment of providing of the utility model can also have following additional technical feature:
According to an embodiment of the present utility model, described heat-exchanging component comprises: multiple heat transfer tube, and described heat transfer tube is arranged in described interior installation cavity; Splitter, described splitter is arranged on the lower end of described interior installation cavity, and is communicated with the entrance of described heat transfer tube, heat transferring medium to be branched to multiple described heat transfer tube; And junction station, described junction station is arranged on the upper end of described interior installation cavity, and with the outlet of described heat transfer tube, to collect the heat transferring medium flowing out multiple described heat transfer tube.
In above-described embodiment, heat-exchanging component comprises multiple heat transfer tube, splitter and junction station.Heat transferring medium flowing, in multiple heat transfer tube, carries out heat exchange with raw gas, to realize the heat exchange function of heat-exchanging component; Splitter is positioned at the lower end of heat transfer tube, shunts the heat transferring medium entering heat-exchanging component, makes heat transferring medium can flow into multiple heat transfer tube equably, is convenient to circulation and the heat exchange of heat transferring medium like this; Junction station is positioned at the upper end of heat transfer tube, the heat transferring medium flowed out can be collected at this, collect rear concentrated discharge, so that the focus utilization of heat transferring medium from multiple heat transfer tube; The setting of splitter and junction station, makes heat transferring medium stably to flow into and to flow out, thus avoids the phenomenon occurring bias current.In addition, splitter, junction station, heat transfer tube are individual components, and can realize modular design and make, and steady quality is reliable, individual difference is minimum, thus drastically increases the production efficiency of device, and make device achieve making of maximizing; On the other hand, each parts make separately and the alterable scope of product structure size are increased greatly, thus expand the range of application of device, can be applied to the coke oven of current all models.Preferably, splitter and junction station are ringwise.
According to an embodiment of the present utility model, multiple described heat transfer tube is arranged along the circumference of described inner core.
In above-described embodiment, arrange multiple heat transfer tube to arrange along the circumference of inner core, namely multiple heat transfer tube is evenly distributed in the circumference of inner core, then in inner core flue, the raw gas at each position all can obtain timely heat exchange, there will not be situation uneven in temperature, thus improve the heat exchange efficiency of heat-exchanging component.Particularly, multiple heat transfer tube is vertically set in parallel in the circumference of inner core.
According to an embodiment of the present utility model, multiple described heat transfer tubes are wrapped in the outside of described inner core.
In above-described embodiment, the outside that multiple heat transfer tube is wrapped in inner core is set, makes the length of single heat transfer tube be longer than the length of flue, thus in single heat transfer tube the flow path of heat transferring medium and time also extended, and then improve the utilization ratio of heat transferring medium.
According to an embodiment of the present utility model, described raw coke over gas riser heat-exchanger rig also comprises: fluid enters pipe, and described fluid enters pipe and is connected with described splitter; Go out pipe with fluid, described fluid goes out pipe and is connected with described junction station.
In above-described embodiment, the heat transferring medium inflow heat-exchanging component that is set to that fluid enters pipe provides passage, and the heat transferring medium outflow heat-exchanging component that is set to that fluid goes out pipe provides passage; Fluid enters pipe and fluid and goes out pipe and be connected to independently on splitter and junction station, avoid the heat transfer tube relatively large with thermal distortion to be directly connected, in addition heat transfer tube is less by the impact of cylindrical shell thermal distortion, thus effectively reduce thermal distortion under various hot operating mode and the impact that pipe and fluid go out interface tube position is entered on fluid, make it not easy to leak, thus improve the work reliability of heat-exchanging component.The specific works flow process of heat transferring medium is: enter pipe from fluid and enter splitter, and be full of splitter, then splitter is uniformly distributed into multi beam fluid and is entered multiple heat transfer tube, flow out in multiple heat transfer tube with after raw gas heat exchange, and entering junction station, the fluid after collecting unimpededly is gone out pipe by fluid and discharges by junction station in time.
It should be explained that, existing raw coke over gas riser heat-exchanger rig, its fluid turnover distribution gathering structure is integrated on heat exchange unit, namely fluid enter pipe be directly connected with the heat exchange unit that fluid goes out Guan Junyu thermal distortion relatively large, in addition heat exchange unit is subject to the impact of cylindrical shell thermal stresses change, therefore fluid enters the longitudinal thermal stress damage produced under various hot operating mode effectively can not be eliminated in interface position that pipe and fluid go out pipe, causes seepage.
According to an embodiment of the present utility model, described splitter is conducting alloy splitter, and described junction station is conducting alloy junction station.
In above-described embodiment, conducting alloy splitter and conducting alloy junction station have good heat-conductive characteristic, the thermal parameter of heat transferring medium can be mated preferably, thus reduce further fluid and enter the interface position that pipe and fluid go out pipe the probability of seepage occurs, and then improve the work reliability of heat-exchanging component.
According to an embodiment of the present utility model, described heat transferring medium is air or nitrogen.
According to an embodiment of the present utility model, described heat transferring medium is water.
In above-described embodiment, gaseous state and liquid heat transferring medium all may be used for this device, thus expand the range of choice of this device heat transferring medium, and then expand the range of application of this device; Air, nitrogen and water are common heat transferring medium, good effect of heat exchange and cheap.Certainly, according to circumstances, gas or the liquid with other compositions of heat exchange function also can be used in this device, do not repeat them here, but all should in protection domain of the present utility model.
According to an embodiment of the present utility model, the inner side-wall of described inner core is provided with protective layer.
In above-described embodiment, protective layer has excellent high-temperature corrosion resistance performance, and has good wear resistance; the corrosion of high-temperature flue gas to inner tube wall can be resisted; effective anti-corrosion protection effect is played to inner core, to improve the work-ing life of inner core, and then improves the work-ing life of heat-exchanging component.
According to an embodiment of the present utility model, described protective layer is heat conducting ceramic coating.
In above-described embodiment, arranging protective layer is heat conducting ceramic coating, is preferably high heat-conducting ceramic coating, high heat-conducting ceramic coating has excellent high temperature corrosion on the one hand, effectively can play a protective role to inner core, prevent flue gas corrosion inner core, and prevent tar to be adsorbed on inner core; High heat-conducting ceramic coating has excellent heat conductivility on the other hand, and the heat of raw gas can be made to be passed to heat transfer tube fast, promotes raw gas and heat transferring medium high efficient heat exchanging, thus plays the effect regulating thermal resistance, improve heat exchange efficiency.
It should be noted that, high heat-conducting ceramic coating here, can be existing high heat-conducting ceramic coating; Also can be that existing high heat conducting coating is carried out filling a prescription the novel high heat-conducting ceramic coating after improveing, to meet the different requirements of different coke-oven to device parameter, thus the range of application of expansion instrument.
Further, the thermal expansivity of described heat conducting ceramic coating and the similar thermal expansion coefficient of described inner core.
The thermal expansivity of high heat-conducting ceramic coating and the similar thermal expansion coefficient of inner core are set, then under various hot operating mode, the deformation quantity basic synchronization of high heat-conducting ceramic coating and inner core, thus the stress rupture of hot operating mode to the matrix material that high heat-conducting ceramic coating and inner core are formed is effectively reduced, thus the probability reducing high heat-conducting ceramic coating cracking, come off, improve resistant to shearing intensity and the heat transfer efficiency of matrix material, and then improve the work-ing life of device.
Preferably, high heat-conducting ceramic coating is compounded on the inner side-wall of inner core by osmosis process under the condition of high temperature, make not obvious independently intermediate layer between high heat-conducting ceramic coating and inner core sidewall, thus the thickness of the matrix material that high heat-conducting ceramic coating and inner core are formed is reduced, effectively reduce again the stress concentration of matrix material junction, and the composite material surface obtained is smooth, thickness even, and tar can be avoided to be adsorbed in coating, namely avoids and hang burnt phenomenon.
It should be explained that, existing raw coke over gas riser heat-exchanger rig, the complex method of its protective layer and inner tube wall is high-temperature fusion technique, thus there is thicker intermediate layer between protective layer and inner tube wall, make matrix material thicker, and transition layer place easily produces stress concentration, cause coating cracking or come off.
According to an embodiment of the present utility model, the outer side wall of described middle cylinder is provided with heat insulating coat.
In above-described embodiment, the outer side wall of middle cylinder arranges heat insulating coat, further increase the heat-proof quality of device, both improve the heat exchange efficiency of device, turn avoid environmental pollution.
According to an embodiment of the present utility model, described inner core, described middle cylinder and described urceolus are high-temp corrosion-resisting alloy cylinder or casting alloy cylinder.
In above-described embodiment, the material arranging inner core, middle cylinder and urceolus is high-temp corrosion-resisting alloy or casting alloy, to ensure that inner core, middle cylinder and urceolus have higher high temperature corrosion, thus can under hot operating mode steady operation.
Additional aspect of the present utility model and advantage become obvious by description part below, or are recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the sectional structure schematic diagram of raw coke over gas riser heat-exchanger rig described in the utility model.
Wherein, the corresponding relation in Fig. 1 between Reference numeral and component names is:
1 inner core, 11 protective layers, cylinder in 2,21 heat insulating coats, 3 heat-exchanging components, 31 heat transfer tubes, 32 splitters, 33 junction stations, 4 urceolus, 5 fluids enter pipe, and 6 fluids go out pipe, 7 gas approach flanges, 8 exhanst gas outlet flanges.
Embodiment
In order to more clearly understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments, the utility model is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the utility model; but; the utility model can also adopt other to be different from other modes described here and implement, and therefore, protection domain of the present utility model is not by the restriction of following public specific embodiment.
Referring to Fig. 1, the raw coke over gas riser heat-exchanger rig according to some embodiments of the utility model is described.
As shown in Figure 1, the raw coke over gas riser heat-exchanger rig that the utility model provides, comprising: inner core 1, middle cylinder 2, heat-exchanging component 3, urceolus 4, thermal insulation barriers, gas approach flange 7 and exhanst gas outlet flange 8.
Particularly, inner core 1 has the flue running through it, and flue has the import being positioned at inner core 1 lower end and the outlet being positioned at inner core 1 upper end; Middle cylinder 2 is set in the outside of inner core 1, and forms interior installation cavity with inner core 1; Heat-exchanging component 3 is arranged in interior installation cavity, and and between inner core 1 and middle cylinder 2, there is gap, the lower end of heat-exchanging component 3 has fluid intake, and upper end has fluid outlet; Urceolus 4 is set in the outside of middle cylinder 2, and forms outer installation cavity with middle cylinder 2; Thermal insulation barriers is arranged in outer installation cavity; Gas approach flange 7 is arranged on the lower end of raw coke over gas riser heat-exchanger rig, and is connected with the import of flue; Exhanst gas outlet flange 8 is arranged on the upper end of raw coke over gas riser heat-exchanger rig, and is connected with the outlet of flue.
The raw coke over gas riser heat-exchanger rig that the utility model provides, high temperature raw gas is from the lower entrances access to plant of flue, carry out heat exchange with heat-exchanging component 3 in flue after, discharged by upper outlet, heat-exchanging component 3 is arranged between inner core 1 and middle cylinder 2, and and between inner core 1 and middle cylinder 2, there is gap, namely heat-exchanging component 3 is independent of inner core 1 and middle cylinder 2, be suspended in therebetween, do not contact with the two, thus reduce the impact that the STRESS VARIATION heat exchanging assembly 3 of cylindrical shell under various hot operating mode cause; Arranging of thermal insulation barriers plays function of heat insulation to device, avoids internal heat to be lost in outside air, thus improves the heat exchange efficiency of device, and the impact that the heat reducing raw gas causes environment.
In an embodiment of the present utility model, as shown in Figure 1, heat-exchanging component 3 comprises: multiple heat transfer tube 31, splitter 32 and junction station 33.
Particularly, heat transfer tube 31 is arranged in interior installation cavity; Splitter 32 is arranged on the lower end of interior installation cavity, and is communicated with the entrance of heat transfer tube 31, heat transferring medium to be branched to multiple heat transfer tube 31; Junction station 33 is arranged on the upper end of interior installation cavity, and with the outlet of heat transfer tube 31, to collect the heat transferring medium flowing out multiple heat transfer tube 31.
In this embodiment, heat-exchanging component 3 comprises multiple heat transfer tube 31, splitter 32 and junction station 33.Heat transferring medium flowing, in multiple heat transfer tube 31, carries out heat exchange with raw gas, to realize the heat exchange function of heat-exchanging component 3; Splitter 32 is positioned at the lower end of heat transfer tube 31, shunts the heat transferring medium entering heat-exchanging component 3, makes heat transferring medium can flow into multiple heat transfer tube 31 equably, is convenient to circulation and the heat exchange of heat transferring medium like this; Junction station 33 is positioned at the upper end of heat transfer tube 31, the heat transferring medium flowed out can be collected at this, collect rear concentrated discharge, so that the focus utilization of heat transferring medium from multiple heat transfer tube 31; The setting of splitter 32 and junction station 33, makes heat transferring medium stably to flow into and to flow out, thus avoids the phenomenon occurring bias current.In addition, splitter 32, junction station 33, heat transfer tube 31 are individual components, and can realize modular design and make, and steady quality is reliable, individual difference is minimum, thus drastically increases the production efficiency of device, and make device achieve making of maximizing; On the other hand, each parts make separately and the alterable scope of product structure size are increased greatly, thus expand the range of application of device, can be applied to the coke oven of current all models.Preferably, splitter 32 and junction station 33 are ringwise.
In an embodiment of the present utility model, multiple heat transfer tube 31 is arranged along the circumference of inner core 1.
In this embodiment, arrange multiple heat transfer tube 31 to arrange along the circumference of inner core 1, namely multiple heat transfer tube 31 is evenly distributed in the circumference of inner core 1, then in inner core 1 flue, the raw gas at each position all can obtain timely heat exchange, there will not be situation uneven in temperature, thus improve the heat exchange efficiency of heat-exchanging component 3.
Particularly, multiple heat transfer tube 31 is vertically set in parallel in the circumference of inner core 1.
In an embodiment of the present utility model, multiple heat transfer tubes 31 are wrapped in the outside of inner core 1.
In this embodiment, the outside that multiple heat transfer tube 31 is wrapped in inner core 1 is set, make the length of single heat transfer tube 31 be longer than the length of flue, thus in single heat transfer tube 31 flow path of heat transferring medium and time also extended, and then improve the utilization ratio of heat transferring medium.
In an embodiment of the present utility model, as shown in Figure 1, raw coke over gas riser heat-exchanger rig also comprises: fluid enters pipe 5 and fluid goes out pipe 6.
Particularly, fluid enters pipe 5 and is connected with splitter 32; Fluid goes out pipe 6 and is connected with junction station 33.
In this embodiment, the heat transferring medium inflow heat-exchanging component 3 that is set to that fluid enters pipe 5 provides passage, and the heat transferring medium outflow heat-exchanging component 3 that is set to that fluid goes out pipe 6 provides passage; Fluid enter pipe 5 and fluid go out pipe 6 be connected to independently splitter 32 with on junction station 33, avoid the heat transfer tube 31 relatively large with thermal distortion to be directly connected, in addition heat transfer tube 31 is less by the impact of cylindrical shell thermal distortion, thus effectively reduce thermal distortion under various hot operating mode and the impact that pipe 5 and fluid go out pipe 6 interface position is entered on fluid, make it not easy to leak, thus improve the work reliability of heat-exchanging component 3.The specific works flow process of heat transferring medium is: enter pipe 5 from fluid and enter splitter 32, and be full of splitter 32, then splitter 32 is uniformly distributed into multi beam fluid and is entered multiple heat transfer tube 31, flow out in multiple heat transfer tube 31 Yu after raw gas heat exchange, and entering junction station 33, the fluid after collecting in time unimpededly is gone out pipe 6 by fluid and discharges by junction station 33.
In an embodiment of the present utility model, splitter 32 is conducting alloy splitter 32, and junction station 33 is conducting alloy junction station 33.
In this embodiment, conducting alloy splitter 32 and conducting alloy junction station 33 have good heat-conductive characteristic, the thermal parameter of heat transferring medium can be mated preferably, thus reduce further fluid and enter the probability that seepage occurs for interface position that pipe 5 and fluid go out pipe 6, and then improve the work reliability of heat-exchanging component 3.
In embodiments more of the present utility model, heat transferring medium is air or nitrogen.
In a specific embodiment of the present utility model, heat transferring medium is water.
In the above-described embodiments, gaseous state and liquid heat transferring medium all may be used for this device, thus expand the range of choice of this device heat transferring medium, and then expand the range of application of this device; Air, nitrogen and water are common heat transferring medium, good effect of heat exchange and cheap.
Certainly, according to circumstances, gas or the liquid with other compositions of heat exchange function also can be used in this device, do not repeat them here, but all should in protection domain of the present utility model.
In an embodiment of the present utility model, as shown in Figure 1, the inner side-wall of inner core 1 is provided with protective layer 11.
In this embodiment; protective layer 11 has excellent high-temperature corrosion resistance performance; and there is good wear resistance; the corrosion of high-temperature flue gas to inner core 1 wall can be resisted; effective anti-corrosion protection effect is played to inner core 1; to improve the work-ing life of inner core 1, and then improve the work-ing life of heat-exchanging component 3.
In an embodiment of the present utility model, protective layer 11 is heat conducting ceramic coating.
In this embodiment, protective layer 11 is set for heat conducting ceramic coating, is preferably high heat-conducting ceramic coating, high heat-conducting ceramic coating has excellent high temperature corrosion on the one hand, effectively can play a protective role to inner core 1, prevent flue gas corrosion inner core 1, and prevent tar to be adsorbed on inner core 1; High heat-conducting ceramic coating has excellent heat conductivility on the other hand, and the heat of raw gas can be made to be passed to heat transfer tube 31 fast, promotes raw gas and heat transferring medium high efficient heat exchanging, thus plays the effect regulating thermal resistance, improve heat exchange efficiency.
Further, the thermal expansivity of heat conducting ceramic coating and the similar thermal expansion coefficient of inner core 1.
In this embodiment, the thermal expansivity of high heat-conducting ceramic coating and the similar thermal expansion coefficient of inner core 1 are set, then under various hot operating mode, the deformation quantity basic synchronization of high heat-conducting ceramic coating and inner core 1, thus the stress rupture of hot operating mode to the matrix material that high heat-conducting ceramic coating and inner core 1 are formed is effectively reduced, thus the probability reducing high heat-conducting ceramic coating cracking, come off, improve resistant to shearing intensity and the heat transfer efficiency of matrix material, and then improve the work-ing life of device.
Preferably, high heat-conducting ceramic coating is compounded in by osmosis process on the inner side-wall of inner core 1 under the condition of high temperature, make not obvious independently intermediate layer between high heat-conducting ceramic coating and inner core 1 sidewall, thus the thickness of the matrix material that high heat-conducting ceramic coating and inner core 1 are formed is reduced, effectively reduce again the stress concentration of matrix material junction, and the composite material surface obtained is smooth, thickness even, and tar can be avoided to be adsorbed in coating, namely avoids and hang burnt phenomenon.
In an embodiment of the present utility model, as shown in Figure 1, the outer side wall of middle cylinder 2 is provided with heat insulating coat 21.
In this embodiment, the outer side wall of middle cylinder 2 arranges heat insulating coat 21, further increases the heat-proof quality of device, both improve the heat exchange efficiency of device, turn avoid environmental pollution.
In an embodiment of the present utility model, inner core 1, middle cylinder 2 and urceolus 4 are high-temp corrosion-resisting alloy cylinder or casting alloy cylinder.
In this embodiment, the material arranging inner core 1, middle cylinder 2 and urceolus 4 is high-temp corrosion-resisting alloy or casting alloy, to ensure that inner core 1, middle cylinder 2 and urceolus 4 have higher high temperature corrosion, thus can under hot operating mode steady operation.
In sum, the raw coke over gas riser heat-exchanger rig that the utility model provides, high temperature raw gas is from the lower entrances access to plant of flue, carry out heat exchange with heat-exchanging component in flue after, discharged by upper outlet, heat-exchanging component is arranged between inner core and middle cylinder, and and between inner core and middle cylinder, there is gap, namely heat-exchanging component is independent of inner core and middle cylinder, be suspended in therebetween, do not contact with the two, thus reduce the impact that the STRESS VARIATION heat exchanging assembly of cylindrical shell under various hot operating mode cause; Arranging of thermal insulation barriers plays function of heat insulation to device, avoids internal heat to be lost in outside air, thus improves the heat exchange efficiency of device, and the impact that the heat reducing raw gas causes environment.
Specifically, existing raw coke over gas riser heat-exchanger rig, inner tube wall surface gaps rate is low, thermal conductivity is not high, and middle cylinder heat exchanging part fluid resistance is large, is subject to the impact of cylindrical shell thermal stresses change, and the raw coke over gas riser heat-exchanger rig that the utility model provides, adopt brand-new heat exchange structure, make, between heat-exchanging component and inner core and middle cylinder, there is gap, namely heat-exchanging component is the floated structure independent of inner core and middle cylinder, it breaches the physical structure of traditional heat exchangers, by inner core, middle cylinder merges comes in, inner core and middle cylinder are equivalent to the closure of heat-exchanging component, heat-exchanging component is arranged in the cavity of closure, therefore inner core, the expansion of middle cylinder and contraction can only change the size of cavity, and inner heat-exchanging component can not be affected, thus the impact that the STRESS VARIATION heat exchanging assembly of cylindrical shell under various hot operating mode causes is greatly reduced, thus improve the work-ing life of heat-exchanging component.The thermal insulation barriers be arranged between cylinder and urceolus then plays effective heat-blocking action to device, avoids the heat loss of heat-exchanging component inside in outside air, has both improve the heat exchange efficiency of heat-exchanging component, the impact that the heat that turn avoid raw gas causes environment.
In the utility model, term " multiple " then refers to two or more, unless otherwise clear and definite restriction.The term such as term " installation ", " being connected ", " connection ", " fixing " all should be interpreted broadly, and such as, " connection " can be fixedly connected with, and also can be removably connect, or connects integratedly; " being connected " can be directly be connected, and also indirectly can be connected by intermediary.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In description of the present utility model, it will be appreciated that, term " on ", the orientation of the instruction such as D score or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or unit must have specific direction, with specific azimuth configuration and operation, therefore, can not be interpreted as restriction of the present utility model.
In the description of this specification sheets, specific features, structure, material or feature that the description of term " embodiment ", " some embodiments ", " specific embodiment " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (12)
1. a raw coke over gas riser heat-exchanger rig, is characterized in that, comprising:
Inner core, described inner core has the flue running through it, and described flue has the import being positioned at described inner core lower end and the outlet being positioned at described inner core upper end;
Middle cylinder, described middle jacket casing is located at the outside of described inner core, and forms interior installation cavity with described inner core;
Heat-exchanging component, described heat-exchanging component is arranged in described interior installation cavity, and and between described inner core and described middle cylinder, there is gap, the lower end of described heat-exchanging component has fluid intake, and upper end has fluid outlet;
Urceolus, described urceolus is set in the outside of described middle cylinder, and forms outer installation cavity with described middle cylinder;
Thermal insulation barriers, described thermal insulation barriers is arranged in described outer installation cavity;
Gas approach flange, described gas approach flange is arranged on the lower end of described raw coke over gas riser heat-exchanger rig, and is connected with the import of described flue; With
Exhanst gas outlet flange, described exhanst gas outlet flange is arranged on the upper end of described raw coke over gas riser heat-exchanger rig, and is connected with the outlet of described flue.
2. raw coke over gas riser heat-exchanger rig according to claim 1, is characterized in that, described heat-exchanging component comprises:
Multiple heat transfer tube, described heat transfer tube is arranged in described interior installation cavity;
Splitter, described splitter is arranged on the lower end of described interior installation cavity, and is communicated with the entrance of described heat transfer tube, heat transferring medium to be branched to multiple described heat transfer tube; With
Junction station, described junction station is arranged on the upper end of described interior installation cavity, and with the outlet of described heat transfer tube, to collect the heat transferring medium flowing out multiple described heat transfer tube.
3. raw coke over gas riser heat-exchanger rig according to claim 2, is characterized in that, multiple described heat transfer tube is arranged along the circumference of described inner core.
4. raw coke over gas riser heat-exchanger rig according to claim 2, is characterized in that, multiple described heat transfer tubes are wrapped in the outside of described inner core.
5. the raw coke over gas riser heat-exchanger rig according to any one of claim 2 to 4, is characterized in that, also comprise:
Fluid enters pipe, and described fluid enters pipe and is connected with described splitter; With
Fluid goes out pipe, and described fluid goes out pipe and is connected with described junction station.
6. raw coke over gas riser heat-exchanger rig according to claim 5, is characterized in that, described splitter is conducting alloy splitter, and described junction station is conducting alloy junction station.
7. raw coke over gas riser heat-exchanger rig according to claim 5, is characterized in that, described heat transferring medium is air or nitrogen.
8. raw coke over gas riser heat-exchanger rig according to claim 5, is characterized in that, described heat transferring medium is water.
9. raw coke over gas riser heat-exchanger rig according to claim 1, is characterized in that, the inner side-wall of described inner core is provided with protective layer.
10. raw coke over gas riser heat-exchanger rig according to claim 9, is characterized in that, described protective layer is heat conducting ceramic coating.
11. raw coke over gas riser heat-exchanger rigs according to claim 1, is characterized in that, the outer side wall of described middle cylinder is provided with heat insulating coat.
12. raw coke over gas riser heat-exchanger rigs according to claim 1, is characterized in that, described inner core, described middle cylinder and described urceolus are high-temp corrosion-resisting alloy cylinder or casting alloy cylinder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827030.XU CN205088180U (en) | 2015-10-22 | 2015-10-22 | Coke oven crude gas tedge heat transfer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827030.XU CN205088180U (en) | 2015-10-22 | 2015-10-22 | Coke oven crude gas tedge heat transfer device |
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| Publication Number | Publication Date |
|---|---|
| CN205088180U true CN205088180U (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520827030.XU Active CN205088180U (en) | 2015-10-22 | 2015-10-22 | Coke oven crude gas tedge heat transfer device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190188A (en) * | 2016-08-30 | 2016-12-07 | 无锡金龙石化冶金设备制造有限公司 | A kind of raw coke over gas riser residual heat recovery device |
| CN108410479A (en) * | 2018-05-21 | 2018-08-17 | 江苏龙冶节能科技有限公司 | A kind of seamless small jacket type coke oven coke oven uprising tube raw coke oven gas apparatus for vapour-cooling |
| CN108441234A (en) * | 2018-05-21 | 2018-08-24 | 江苏龙冶节能科技有限公司 | A kind of seamless coke oven coke oven uprising tube raw coke oven gas apparatus for vapour-cooling structure |
| CN113863497A (en) * | 2021-08-30 | 2021-12-31 | 中国化学工程重型机械化有限公司 | Special-shaped large-volume steel structure based on heating system |
-
2015
- 2015-10-22 CN CN201520827030.XU patent/CN205088180U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190188A (en) * | 2016-08-30 | 2016-12-07 | 无锡金龙石化冶金设备制造有限公司 | A kind of raw coke over gas riser residual heat recovery device |
| CN108410479A (en) * | 2018-05-21 | 2018-08-17 | 江苏龙冶节能科技有限公司 | A kind of seamless small jacket type coke oven coke oven uprising tube raw coke oven gas apparatus for vapour-cooling |
| CN108441234A (en) * | 2018-05-21 | 2018-08-24 | 江苏龙冶节能科技有限公司 | A kind of seamless coke oven coke oven uprising tube raw coke oven gas apparatus for vapour-cooling structure |
| CN113863497A (en) * | 2021-08-30 | 2021-12-31 | 中国化学工程重型机械化有限公司 | Special-shaped large-volume steel structure based on heating system |
| CN113863497B (en) * | 2021-08-30 | 2022-12-16 | 中国化学工程重型机械化有限公司 | Special-shaped large-volume steel structure based on heating system |
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