CN209655881U - A kind of multistage rising heat exchange of heat pipe - Google Patents
A kind of multistage rising heat exchange of heat pipe Download PDFInfo
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- CN209655881U CN209655881U CN201920139186.7U CN201920139186U CN209655881U CN 209655881 U CN209655881 U CN 209655881U CN 201920139186 U CN201920139186 U CN 201920139186U CN 209655881 U CN209655881 U CN 209655881U
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
A kind of multistage rising heat exchange of heat pipe, belongs to metallurgical industry heat recovery technology field.The multistage rising heat exchange of heat pipe, including first-class heat exchanger, secondary heat exchanger, shell and temperature control working medium flow feedback regulator, first-class heat exchanger and secondary heat exchanger are arranged at the multistage inside for rising heat exchange of heat pipe, the top of first-class heat exchanger is equipped with sender property outlet one, the lower part of first-class heat exchanger is equipped with working medium entrances one, the top of secondary heat exchanger is equipped with sender property outlet two, the lower part of secondary heat exchanger is equipped with working medium entrances two, temperature control working medium flow feedback regulator includes upper thermocouple one, lower thermocouple one, upper thermocouple two, lower thermocouple two, PLC control module, electric control valve one and electric control valve two, the PLC control module includes PLC processor one and PLC processor two.The multistage rising heat exchange of heat pipe, can sufficiently recycle coal oven dithio-gas high-temperature residual heat, improve the heat exchange efficiency for rising heat exchange of heat pipe, and guaranteeing that raw gas temperature will not be reduced excessively causes tar to condense.
Description
Technical field
The utility model relates to metallurgical industry heat recovery technology field, in particular to a kind of multistage rising heat exchange of heat pipe.
Background technique
Coal oven dithio-gas is that a kind of temperature is high, is both corrosive, the high temperature corrosive gas containing a large amount of tar.Current
Rising heat exchange of heat pipe is usually single-stage heat exchanger, and structure is single layer water leg, heat exchange coil, the external heat exchange plate of single-stage built in single-stage
Three kinds of structure structures of pipe.At present the not high reason of single-stage heat exchanger heat exchange efficiency be usually 20 small the carbonizing chamber of coke oven production cycle
When~24 hours, within 15 hours early periods, raw coke oven gas flow is big, and flow velocity is fast, and the raw coke oven gas heat close to heat-transfer surface can recycle,
But tedge center raw coke oven gas sprays ammonium hydroxide cooling into bridge tube without the quickly outflow tedge that sufficiently exchanges heat just, so that on
Raw coke oven gas heat in riser heat exchanger is not efficiently used.
Summary of the invention
In order to solve single-stage heat exchanger heat exchange efficiency of the existing technology is high, the recycling of coal oven dithio-gas high-temperature residual heat not
Sufficiently, excessive drop temperature leads to the technical problems such as tar condensation, and the utility model provides a kind of multistage rising heat exchange of heat pipe, can
Sufficiently recycling coal oven dithio-gas high-temperature residual heat recycles tedge center, periphery famine for 15 hours especially before coke oven production simultaneously
Coal gas high-temperature waste heat improves the heat exchange efficiency for rising heat exchange of heat pipe, so that raw coke oven gas heat is fully used, while guaranteeing waste coal
Temperature degree, which will not be reduced excessively, causes tar to condense.
To achieve the goals above, the technical solution of the utility model is:
A kind of multistage rising heat exchange of heat pipe, including first-class heat exchanger, secondary heat exchanger, shell and temperature control working medium flow feedback
Adjuster；
The top of the shell is equipped with upper flange, and the lower part of shell is equipped with lower flange；
The first-class heat exchanger and secondary heat exchanger are arranged at the multistage inside for rising heat exchange of heat pipe, the level-one heat exchange
Shell of the device close to multistage rising heat exchange of heat pipe, the close multistage center for rising heat exchange of heat pipe of the secondary heat exchanger, described one
The top of grade heat exchanger is equipped with sender property outlet one, and the lower part of first-class heat exchanger is equipped with working medium entrances one, the secondary heat exchanger
Top is equipped with sender property outlet two, and the lower part of secondary heat exchanger is equipped with working medium entrances two；
The temperature control working medium flow feedback regulator includes upper thermocouple one, lower thermocouple one, upper thermocouple two, lower thermoelectricity
Even two, PLC control module, electric control valve one and electric control valve two, the PLC control module include one He of PLC processor
PLC processor two, the top of the first-class heat exchanger are equipped with upper thermocouple one, and the lower part of first-class heat exchanger is equipped with lower thermocouple
One, the top of the secondary heat exchanger is equipped with upper thermocouple two, and the lower part of secondary heat exchanger is equipped with lower thermocouple two, the upper heat
Galvanic couple one and lower thermocouple one are connect with PLC processor one, and the upper thermocouple two and lower thermocouple two are and PLC processor
Two connections, the working medium entrances one are equipped with electric control valve one, and the working medium entrances two are equipped with electric control valve two, described electronic
Regulating valve one is connect with PLC processor one, and the electric control valve two is connect with PLC processor two.
The first-class heat exchanger is using the heat exchange coil structure with protection sleeve pipe or uses outer coil arrangement, the level-one
When heat exchanger uses the heat exchange coil structure with protection sleeve pipe, the first-class heat exchanger includes heat exchange coil one, the heat exchange plate
Heat-exchange working medium is equipped in pipe one, the heat exchange coil one is externally provided with protection sleeve pipe, between the heat exchange coil one and protection sleeve pipe
Equipped with heat-conducting medium, when the first-class heat exchanger uses outer coil arrangement, first-class heat exchanger includes outer coil pipe, steel cylinder one and steel cylinder
Two, the steel cylinder one and steel cylinder two are cylindrical structure, and are separately positioned on the two sides of the outer coil pipe, in the outer coil pipe
Equipped with heat-exchange working medium, the outer coil pipe is externally provided with heat-conducting medium.
The secondary heat exchanger uses the heat exchange coil structure with protection sleeve pipe, and the secondary heat exchanger includes heat exchange coil
Two, the heat exchange coil two is interior to be equipped with heat-exchange working medium, and the heat exchange coil two is externally provided with protection sleeve pipe, institute's heat exchange coil two and guarantor
Heat-conducting medium is equipped between protecting pipe.
The shell is made of steel plate, and the external middle part of the shell is equipped with expansion joint.
The inner wall of the shell is equipped with heat insulation layer or insulating layer, and the heat insulation layer includes heat reflection glaze and flame retardant coating,
The heat reflection glaze is positioned close to the side of first-class heat exchanger, and the material of the insulating layer uses refractory fibre.
The flame retardant coating is poured using refractory brick ring cutting or using refractory material, and the heat reflection glaze uses high temperature resistant
Ceramic spraying.
The PLC control module is according to the multistage set value calculation electric control valve one for rising gas temperature in heat exchange of heat pipe
With the aperture of electric control valve two, wherein PLC processor one is electronic according to the set value calculation of gas temperature in first-class heat exchanger
The aperture of regulating valve one, PLC processor two is according to the set value calculation electric control valve two of gas temperature in secondary heat exchanger
Aperture.
The heat-conducting medium is silicon carbide, aluminium nitride, graphite powder, graphene, zinc oxide, boron nitride, steel powder, aluminium powder
One or more of solid powder and liquid metal, the protection sleeve pipe use Heat-Resisting Stainless Steel Tube or ceramic post sintering pipe
Road.
The heat-conducting medium is silicon carbide, aluminium nitride, graphite powder, graphene, zinc oxide, boron nitride, steel powder, aluminium powder
One or more of solid powder and liquid metal, the protection sleeve pipe use Heat-Resisting Stainless Steel Tube or ceramic post sintering pipe
Road.
The first-class heat exchanger and secondary heat exchanger are in series or in parallel.
The utility model has the beneficial effects that
The multistage heat exchange of heat pipe that rises of the utility model can sufficiently recycle coal oven dithio-gas high-temperature residual heat, especially in coke
Furnace, which produces to recycle simultaneously for first 15 hours, rises heat exchange of heat pipe center, periphery raw coke oven gas high-temperature residual heat, improves and rises heat exchange of heat pipe
Heat exchange efficiency makes raw coke oven gas heat be fully used, meanwhile, temperature control working medium flow feedback regulator prevents raw gas temperature mistake
Tar caused by degree reduces condenses phenomenon.
Detailed description of the invention
A kind of Fig. 1 multistage when being first-class heat exchanger provided by the utility model using heat exchange coil structure with protection sleeve pipe
Rise the structural schematic diagram of heat exchange of heat pipe；
Fig. 2 is that level-one exchanges heat when first-class heat exchanger provided by the utility model uses the heat exchange coil structure with protection sleeve pipe
The structural schematic diagram of device；
Fig. 3 is the structural schematic diagram of secondary heat exchanger provided by the utility model；
Fig. 4 is heat exchange coil when first-class heat exchanger provided by the utility model uses the heat exchange coil structure with protection sleeve pipe
One structural schematic diagram；
Fig. 5 is a kind of when being first-class heat exchanger provided by the utility model using outer coil arrangement multistage to rise heat exchange of heat pipe
Structural schematic diagram；
Fig. 6 is structural representation of the first-class heat exchanger provided by the utility model using first-class heat exchanger when outer coil arrangement
Figure.
Wherein,
1- first-class heat exchanger, 2- secondary heat exchanger, the upper thermocouple one of 3-, the upper thermocouple two of 4-, 5- upper flange, 6- laxative remedy
Orchid, 7- shell, 8- heat reflection glaze, 9- flame retardant coating, 10- expansion joint, 11- electric control valve one, 12- electric control valve two, 13-
Working medium entrances one, 14- working medium entrances two, thermocouple one under 15-, thermocouple two under 16-, 17- sender property outlet two, 18- working medium go out
One, 19-PLC of mouth processor one, 20-PLC processor two, 21- column support one, 22- heat exchange coil one, 23- column support two,
24- heat exchange coil two, 25- protection sleeve pipe, 26- heat-conducting medium, 27- insulating layer, 28- heat-exchange working medium, 29-PLC control module,
30- steel cylinder one, the outer coil pipe of 31-, 32- steel cylinder two.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.In the description of the present invention, it should be noted that the side of the instructions such as term " on ", "lower", "inner", "outside"
Position or positional relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description the utility model and simplification is retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it should not be understood as limiting the present invention.In addition, term " one ", " two ", " first ", " second " are only used for description mesh
, it is not understood to indicate or imply relative importance.Unless otherwise clearly defined and limited, term " installation ", " setting
Have ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, may be a detachable connection, or one
Ground connection；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, it can be the connection inside two elements.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
It is of the existing technology in order to solve the problems, such as, as shown in Figures 1 to 6, the utility model provide it is a kind of multistage on
Riser heat exchanger, including first-class heat exchanger 1, secondary heat exchanger 2, shell 7 and temperature control working medium flow feedback regulator；
The top of shell 7 is equipped with upper flange 5, and the lower part of shell 7 is equipped with lower flange 6；
First-class heat exchanger 1 and secondary heat exchanger 2 are arranged at the multistage inside for rising heat exchange of heat pipe, and first-class heat exchanger 1 is leaned on
The nearly multistage shell 7 for rising heat exchange of heat pipe, secondary heat exchanger 2 rise the center of heat exchange of heat pipe close to multistage, first-class heat exchanger 1
Top is equipped with sender property outlet 1, and the lower part of first-class heat exchanger 1 is equipped with working medium entrances 1, and the top of secondary heat exchanger 2 is equipped with
Sender property outlet 2 17, the lower part of secondary heat exchanger 2 are equipped with working medium entrances 2 14, and in the utility model, first-class heat exchanger 1 is close to more
The shell 7 of grade rising heat exchange of heat pipe is used to recycle the multistage air-flow thermal energy risen in heat exchange of heat pipe periphery high temperature raw coke oven gas channel,
Secondary heat exchanger 2 leads to close to the center that multistage rises heat exchange of heat pipe for recycling the multistage heat exchange of heat pipe center high temperature raw coke oven gas that rises
Air-flow thermal energy in road.
Temperature control working medium flow feedback regulator includes upper thermocouple 1, lower thermocouple 1, upper thermocouple 24, lower thermoelectricity
Even 2 16, PLC control module 29, electric control valve 1 and electric control valve 2 12, PLC control module 29 include PLC processing
Device 1 and PLC processor 2 20, the top of first-class heat exchanger 1 are equipped with upper thermocouple 1, and upper thermocouple 1 is for recording week
The lower part of the outlet temperature in side high temperature raw coke oven gas channel, first-class heat exchanger 1 is equipped with lower thermocouple 1, and lower thermocouple 1 is used for
The inlet temperature in periphery high temperature raw coke oven gas channel is recorded, the top of secondary heat exchanger 2 is equipped with upper thermocouple 24, upper thermocouple 24
For recording the outlet temperature in central high temperature raw coke oven gas channel, the lower part of secondary heat exchanger 2 is equipped with lower thermocouple 2 16, lower thermoelectricity
Even 2 16 for recording the inlet temperature in central high temperature raw coke oven gas channel, and upper thermocouple 1 and lower thermocouple 1 are and at PLC
It manages device 1 to connect, upper thermocouple 24 and lower thermocouple 2 16 are connect with PLC processor 2 20, and working medium entrances 1 are equipped with
Electric control valve 1, working medium entrances 2 14 are equipped with electric control valve 2 12, and electric control valve 1 and PLC processor 1 connect
It connects, electric control valve 2 12 is connect with PLC processor 2 20.Upper thermocouple 1 and lower thermocouple 1 export 4~20mA letter
Number into PLC processor 1, the model siemens PLC smart SR30 of PLC processor 1 is calculated through step7 program
New 4~20mA signal is exported to motorized adjustment valve actuator, one 11 aperture of electric control valve is controlled, adjusts 1 work of first-class heat exchanger
Mass flow amount, upper thermocouple 24 and lower thermocouple 2 16 export 4~20mA signal into PLC processor 2 20, PLC processor two
20 model siemens PLC smart SR30 is calculated through step7 program and is exported new 4~20mA signal to electric control valve
Actuator controls 2 12 aperture of electric control valve, adjusts 2 working medium flow of secondary heat exchanger.
First-class heat exchanger 1 is using the heat exchange coil structure with protection sleeve pipe 25 or uses outer 31 structure of coil pipe, and level-one is changed
When hot device 1 uses the heat exchange coil structure with protection sleeve pipe 25, first-class heat exchanger 1 includes heat exchange coil 1, heat exchange coil one
Heat-exchange working medium 28 is equipped in 22, heat exchange coil 1 is externally provided with protection sleeve pipe 25, between heat exchange coil 1 and protection sleeve pipe 25
Equipped with heat-conducting medium 26, when first-class heat exchanger 1 is using outer 31 structure of coil pipe, first-class heat exchanger 1 includes outer coil pipe 31, steel cylinder 1
With steel cylinder 2 32, steel cylinder 1 and steel cylinder 2 32 are cylindrical structure, and are separately positioned on the two sides of outer coil pipe 31, outer coil pipe
Heat-exchange working medium 28 is equipped in 31, outer coil pipe 31 is externally provided with heat-conducting medium 26.Secondary heat exchanger 2 uses the heat exchange with protection sleeve pipe 25
Coil arrangement, secondary heat exchanger 2 include heat exchange coil 2 24, are equipped with heat-exchange working medium 28, heat exchange coil two in heat exchange coil 2 24
24 are externally provided with protection sleeve pipe 25, and heat-conducting medium 26 is equipped between institute's heat exchange coil 2 24 and protection sleeve pipe 25.
In the utility model, as shown in figure 4, when first-class heat exchanger 1 uses the heat exchange coil structure with protection sleeve pipe 25, one
Grade heat exchanger 1 is identical as the structure of secondary heat exchanger 2, and first-class heat exchanger 1 is arranged on column support 1, secondary heat exchanger
2 are arranged on column support 2 23, as shown in Figure 1-3, column support 1 and column support 2 23 are by high temperature resistant stainless steel
It is made, column support 1 and column support 2 23 are arranged inside multistage rising heat exchange of heat pipe, first-class heat exchanger 1 and column
Bracket 1 connects, and column support 1 is used to support first-class heat exchanger 1, and secondary heat exchanger 2 is connect with column support 2 23, stands
Column holder 2 23 is used to support secondary heat exchanger 2, and heat-exchange working medium 28 is walked in heat exchange coil 1 and heat exchange coil 2 24, heat exchange
It is equipped with protection sleeve pipe 25 outside coil pipe 1 and heat exchange coil 2 24, for preventing high temperature corrosion；As it can be seen in figures 5 and 6, level-one is changed
When hot device 1 is using outer 31 structure of coil pipe, the upper end of steel cylinder 1 and steel cylinder 2 32 is connect with upper flange 5, steel cylinder 1 and steel
The lower end of cylinder 2 32 is connect with lower flange 6, and heat-conducting medium 26 is located at outer coil pipe between steel cylinder 1 and steel cylinder 2 32
Outside 31.
Heat-conducting medium 26 is that silicon carbide, aluminium nitride, graphite powder, graphene, zinc oxide, boron nitride, steel powder, aluminium powder are solid
One or more of body powder and liquid metal, protection sleeve pipe 25 use Heat-Resisting Stainless Steel Tube or ceramic post sintering pipeline, one
Grade heat exchanger 1 and secondary heat exchanger 2 are in series or in parallel, and shell 7 is made of steel plate, and the external middle part of shell 7 is equipped with expansion
Section 10, the inner wall of shell 7 are equipped with heat insulation layer or insulating layer 27, and first-class heat exchanger 1 uses the heat exchange coil with protection sleeve pipe 25
When structure, the inner wall of shell 7 is equipped with heat insulation layer, and heat insulation layer is used to for heat to be interposed between the multistage inside for rising heat exchange of heat pipe, insulation
Layer includes heat reflection glaze 8 and flame retardant coating 9, and heat reflection glaze 8 is positioned close to the side of first-class heat exchanger 1, and flame retardant coating 9 uses
Refractory brick ring cutting is poured using refractory material, and heat reflection glaze 8 is sprayed using refractory ceramics, and first-class heat exchanger 1 uses
When outer 31 structure of coil pipe, the inner wall of shell 7 is equipped with insulating layer 27, and the material of insulating layer 27 uses refractory fibre, more for reducing
Heat loss in grade rising heat exchange of heat pipe, the PLC control module 29 rise setting for gas temperature in heat exchange of heat pipe according to multistage
The aperture of setting control electric control valve one and electric control valve two, the setting value of gas temperature are higher than 380 DEG C, wherein PLC
Processor 1 descends thermocouple according to the aperture of the set value calculation electric control valve one of gas temperature in first-class heat exchanger 1
The inlet temperature in one 15 record periphery high temperature raw coke oven gas channels, upper thermocouple 1 record the outlet in periphery high temperature raw coke oven gas channel
Temperature, PLC processor 1 control one 11 aperture of electric control valve, adjust 1 working medium flow of first-class heat exchanger, guarantee periphery high temperature
Gas temperature in raw coke oven gas channel is higher than 380 DEG C, prevents tar from condensing；PLC processor 2 20 is according to gas in secondary heat exchanger 2
The aperture of the set value calculation electric control valve two of temperature descends thermocouple 2 16 to record entering for central high temperature raw coke oven gas channel
Mouth temperature, upper thermocouple 24 record the outlet temperature in central high temperature raw coke oven gas channel, and PLC processor 2 20 controls motorized adjustment
2 12 aperture of valve adjusts 2 working medium flow of secondary heat exchanger, guarantees that the gas temperature in central high temperature raw coke oven gas channel is higher than 380
DEG C, prevent tar from condensing.
In the utility model, as shown in Figure 1, shell 7 is cylindrical structure, shell 7 is made of steel plate, and expansion joint 10 is used for
Equipment deformation is coped with, heat reflection glaze 8 is sprayed using refractory ceramics, can be by raw coke oven gas ambient radiation heat to first-class heat exchanger
1 reflection, improves 1 waste heat recovery efficiency of first-class heat exchanger.As shown in Figure 1, B area be first-class heat exchanger 1 and secondary heat exchanger 2 it
Between periphery high temperature raw coke oven gas channel, a-quadrant is the central high temperature raw coke oven gas channel among secondary heat exchanger 2, upper thermocouple 1
It is arranged on shell 7 with lower thermocouple 1, and both passes through shell 7 and connect with PLC processor 1, upper 24 He of thermocouple
Lower thermocouple 2 16 is arranged on shell 7, and is both passed through shell 7 and connect with PLC processor 2 20.
A kind of above-mentioned multistage rising heat exchange of heat pipe course of work:
(1) when first-class heat exchanger 1 is connected with secondary heat exchanger 2, the sender property outlet 1 and secondary heat exchange of first-class heat exchanger 1
The working medium entrances 2 14 of device 2 are connected by external pipe, and heat-exchange working medium 28 is made to enter first-class heat exchanger by working medium entrances 1
1, then by sender property outlet 1, working medium entrances 2 14, finally flowed out from sender property outlet 2 17, lower thermocouple 1 records periphery
The inlet temperature in high temperature raw coke oven gas channel, upper thermocouple 1 record the outlet temperature in periphery high temperature raw coke oven gas channel, lower thermocouple
1 and upper thermocouple 1 by temperature inversion at electric signal, output 4~20mA signal is into PLC processor 1, PLC processing
The model siemens PLC smart SR30 of device 1 is calculated through step7 program and is exported new 4~20mA signal to electric adjustable
Valve actuator is saved, one 11 aperture of electric control valve is controlled, adjusts 1 working medium flow of first-class heat exchanger, guarantees periphery high temperature raw coke oven gas
Gas temperature in channel is higher than 380 DEG C, prevents tar from condensing；Then, it is logical to record central high temperature raw coke oven gas for lower thermocouple 2 16
The inlet temperature in road, upper thermocouple 24 record the outlet temperature in central high temperature raw coke oven gas channel, lower thermocouple 2 16 and upper thermoelectricity
Temperature inversion at electric signal, is exported 4~20mA signal into PLC processor 2 20, the model of PLC processor 2 20 by idol 24
For siemens PLC smart SR30, is calculated through step7 program and exports new 4~20mA signal to motorized adjustment valve actuator,
2 12 aperture of electric control valve is controlled, 2 working medium flow of secondary heat exchanger is adjusted, guarantees the coal gas in central high temperature raw coke oven gas channel
Temperature is higher than 380 DEG C, prevents tar from condensing.
(2) when first-class heat exchanger 1 is in parallel with secondary heat exchanger 2, a part of heat-exchange working medium 28 by working medium entrances 1 into
Enter the heat exchange of first-class heat exchanger 1, another part is exchanged heat by working medium entrances 2 14 into secondary heat exchanger 2, lower thermocouple one
The inlet temperature in 15 record periphery high temperature raw coke oven gas channels, upper thermocouple 1 record the outlet temperature in periphery high temperature raw coke oven gas channel
Temperature inversion at electric signal, is exported 4~20mA signal into PLC processor one by degree, lower thermocouple 1 and upper thermocouple 1
19, the model siemens PLC smart SR30 of PLC processor 1 are calculated through step7 program and are exported new 4~20mA letter
Number to motorized adjustment valve actuator, one 11 aperture of electric control valve is controlled, 1 working medium flow of first-class heat exchanger is adjusted, guarantees periphery
Gas temperature in high temperature raw coke oven gas channel is higher than 380 DEG C, prevents tar from condensing；Meanwhile the lower record of thermocouple 2 16 center is high
The inlet temperature in warm raw coke oven gas channel, upper thermocouple 24 record the outlet temperature in central high temperature raw coke oven gas channel, lower thermocouple two
16 and upper thermocouple 24 by temperature inversion at electric signal, output 4~20mA signal is into PLC processor 2 20, PLC processor
2 20 model siemens PLC smart SR30 is calculated through step7 program and is exported new 4~20mA signal to motorized adjustment
Valve actuator controls 2 12 aperture of electric control valve, adjusts 2 working medium flow of secondary heat exchanger, guarantees that central high temperature raw coke oven gas is logical
Gas temperature in road is higher than 380 DEG C, prevents tar from condensing.
Embodiment one
7 meters of capacity coke oven raw coke oven gas UTILIZATION OF VESIDUAL HEAT IN projects rise heat exchange of heat pipe, first-class heat exchanger 1 and second level using multistage
Heat exchanger 2 is used in series, and heat-exchange working medium 28 initially enters the heat exchange of first-class heat exchanger 1, is changed subsequently into secondary heat exchanger 2
Heat, production saturated vapor use, and heat-exchange working medium 28 uses demineralized water, and demineralized water enters the heat exchange of first-class heat exchanger 1, subsequently into two
Grade heat exchanger 2 exchanges heat.Heat exchange coil 1 and heat exchange coil 2 24 are all made of 304 stainless-steel pipes, and heat-conducting medium 26 uses nitrogen
Change aluminium powder or liquid metal, protection sleeve pipe 25 uses ceramic post sintering pipeline, and the control of temperature control working medium flow feedback regulator is waste
Gas temperature, 750 DEG C of temperature of periphery high temperature raw coke oven gas feeder connection, outlet temperature are controlled at 400 DEG C, and central high temperature raw coke oven gas is logical
750 DEG C of road inlet temperature, outlet temperature is controlled at 420 DEG C.
Embodiment two
6 meters of waste heat of coke oven crude gas utilize project, rise heat exchange of heat pipe using multistage.First-class heat exchanger 1 and secondary heat exchange
Device 2 is used in series, and heat-exchange working medium 28 uses high temperature heat conductive oil to heat after conduction oil heating for chemical products.Conduction oil into
Enter the heat exchange of first-class heat exchanger 1, exchanges heat subsequently into secondary heat exchanger 2, heat exchange coil 1 and heat exchange coil 2 24 are all made of 316
Stainless-steel pipe, heat-conducting medium 26 use metal powder or silicon carbide powder, and protection sleeve pipe 25 uses 310S stainless steel pipes,
310S stainless steel pipes thermal Sperayed Ceramic Coatings.Temperature control working medium flow feedback regulator controls raw gas temperature, and periphery high temperature is waste
750 DEG C of gas passage inlet temperature, outlet temperature is controlled at 400 DEG C, and central 750 DEG C of high temperature raw coke oven gas feeder connection temperature, out
Mouth temperature control is at 420 DEG C.
Embodiment three
7.63 meters of especially big waste heat of coke oven crude gas utilize project, rise heat exchange of heat pipe, first-class heat exchanger 1 and two using multistage
Grade heat exchanger 2 is used in series, and heat-exchange working medium 28 uses 120 DEG C of fusing point fused salts.120 DEG C of fusing point fused salts enter first-class heat exchanger 1 and change
Heat exchanges heat subsequently into secondary heat exchanger 2, and heat exchange coil 1 and heat exchange coil 2 24 are all made of 316L stainless-steel pipe, lead
Thermal medium 26 uses liquid metal, and protection sleeve pipe 25 uses 310S stainless steel pipes, and 310S stainless steel pipes thermal spraying ceramic applies
Layer, temperature control working medium flow feedback regulator control raw gas temperature, 800 DEG C of temperature of periphery high temperature raw coke oven gas feeder connection, outlet
Temperature is controlled at 380 DEG C, and central 810 DEG C of high temperature raw coke oven gas feeder connection temperature, outlet temperature is controlled at 450 DEG C.
Example IV
7 meters of capacity coke oven raw coke oven gas UTILIZATION OF VESIDUAL HEAT IN projects rise heat exchange of heat pipe, first-class heat exchanger 1 and second level using multistage
Heat exchanger 2 is used in parallel, and a part of heat-exchange working medium 28 enters first-class heat exchanger 1 and exchanges heat, another part enter secondary heat exchanger 2 into
Row heat exchange, production saturated vapor use.Heat exchange coil 1 and heat exchange coil 2 24 are all made of 304 stainless-steel pipes, thermally conductive Jie
Matter 26 uses graphene, and protection sleeve pipe 25 uses ceramic post sintering pipeline.Temperature control working medium flow feedback regulator controls raw coke oven gas temperature
Degree, 750 DEG C of temperature of periphery high temperature raw coke oven gas feeder connection, outlet temperature are controlled at 400 DEG C, central high temperature raw coke oven gas feeder connection
750 DEG C of temperature, outlet temperature is controlled at 400 DEG C.
Embodiment five
6 meters of waste heat of coke oven crude gas utilize project, rise heat exchange of heat pipe, first-class heat exchanger 1 and secondary heat exchange using multistage
Device 2 is used in parallel, and heat-exchange working medium 28 uses high temperature heat conductive oil to heat for chemical products, conduction oil one after conduction oil heating
Part enters first-class heat exchanger 1 and exchanges heat, and another part enters the heat exchange of secondary heat exchanger 2.Heat exchange coil 1 and heat exchange coil two
24 are all made of 316 stainless-steel pipes, and heat-conducting medium 26 uses aluminium powder, aluminium nitride, graphene mixed-powder, and protection sleeve pipe 25 uses
310S stainless steel pipes, 310S stainless steel pipes thermal Sperayed Ceramic Coatings.Temperature control working medium flow feedback regulator controls raw coke oven gas
Temperature, 750 DEG C of temperature of periphery high temperature raw coke oven gas feeder connection, outlet temperature are controlled at 400 DEG C.Central high temperature raw coke oven gas channel enters
750 DEG C of temperature of mouth, outlet temperature are controlled at 420 DEG C.
Embodiment six
Waste heat of coke oven crude gas utilizes project, generates superheated steam, and working medium uses demineralized water, and demineralized water enters level-one heat exchange
The heat exchange production saturated vapor of device 1, saturated vapor become superheated steam subsequently into the heat exchange of secondary heat exchanger 2.Heat exchange coil 1
It is all made of 316L stainless-steel pipe with heat exchange coil 2 24, heat-conducting medium 26 uses liquid metal and aluminium nitride powder mixture,
Protection sleeve pipe 25 uses 310S stainless steel pipes, 310S stainless steel pipes thermal Sperayed Ceramic Coatings.Temperature control working medium flow feedback is adjusted
It saves device and controls raw gas temperature, 800 DEG C of temperature of periphery high temperature raw coke oven gas feeder connection, outlet temperature is controlled at 380 DEG C.It is central high
Warm 810 DEG C of raw coke oven gas feeder connection temperature, outlet temperature is controlled at 450 DEG C.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of multistage rising heat exchange of heat pipe, which is characterized in that including first-class heat exchanger, secondary heat exchanger, shell and temperature control work
Mass flow amount feedback regulator；
The top of the shell is equipped with upper flange, and the lower part of shell is equipped with lower flange；
The first-class heat exchanger and secondary heat exchanger are arranged at the multistage inside for rising heat exchange of heat pipe, and the first-class heat exchanger is leaned on
The nearly multistage shell for rising heat exchange of heat pipe, the secondary heat exchanger are changed close to the multistage center for rising heat exchange of heat pipe, the level-one
The top of hot device is equipped with sender property outlet one, and the lower part of first-class heat exchanger is equipped with working medium entrances one, the top of the secondary heat exchanger
Equipped with sender property outlet two, the lower part of secondary heat exchanger is equipped with working medium entrances two；
The temperature control working medium flow feedback regulator includes upper thermocouple one, lower thermocouple one, upper thermocouple two, lower thermocouple
Two, PLC control module, electric control valve one and electric control valve two, the PLC control module include PLC processor one and PLC
Processor two, the top of the first-class heat exchanger are equipped with upper thermocouple one, and the lower part of first-class heat exchanger is equipped with lower thermocouple one, institute
The top for stating secondary heat exchanger is equipped with upper thermocouple two, and the lower part of secondary heat exchanger is equipped with lower thermocouple two, the upper thermocouple
One and lower thermocouple one connect with PLC processor one, the upper thermocouple two and lower thermocouple two connect with PLC processor two
It connects, the working medium entrances one are equipped with electric control valve one, and the working medium entrances two are equipped with electric control valve two, the motorized adjustment
Valve one is connect with PLC processor one, and the electric control valve two is connect with PLC processor two.
2. multistage rising heat exchange of heat pipe according to claim 1, which is characterized in that the first-class heat exchanger uses band protection
The heat exchange coil structure of casing uses outer coil arrangement, and the first-class heat exchanger uses the heat exchange coil knot with protection sleeve pipe
When structure, the first-class heat exchanger includes heat exchange coil one, is equipped with heat-exchange working medium, the heat exchange coil one in the heat exchange coil one
It is externally provided with protection sleeve pipe, heat-conducting medium is equipped between the heat exchange coil one and protection sleeve pipe, the first-class heat exchanger is using outer
When coil arrangement, first-class heat exchanger includes outer coil pipe, steel cylinder one and steel cylinder two, and the steel cylinder one and steel cylinder two are cylindrical drum knot
Structure, and the two sides of the outer coil pipe are separately positioned on, heat-exchange working medium is equipped in the outer coil pipe, the outer coil pipe is externally provided with thermally conductive
Medium.
3. multistage rising heat exchange of heat pipe according to claim 1, which is characterized in that the secondary heat exchanger uses band protection
The heat exchange coil structure of casing, the secondary heat exchanger include heat exchange coil two, are equipped with heat-exchange working medium in the heat exchange coil two,
The heat exchange coil two is externally provided with protection sleeve pipe, and heat-conducting medium is equipped between institute's heat exchange coil two and protection sleeve pipe.
4. multistage rising heat exchange of heat pipe according to claim 1, which is characterized in that the shell is made of steel plate, institute
The external middle part for stating shell is equipped with expansion joint.
5. multistage rising heat exchange of heat pipe according to claim 1, which is characterized in that the inner wall of the shell is equipped with heat insulation layer
Or insulating layer, the heat insulation layer include heat reflection glaze and flame retardant coating, the heat reflection glaze is positioned close to level-one heat exchange
The material of the side of device, the insulating layer uses refractory fibre.
6. multistage rising heat exchange of heat pipe according to claim 5, which is characterized in that the flame retardant coating uses refractory brick ring cutting
Or poured using refractory material, the heat reflection glaze is sprayed using refractory ceramics.
7. multistage rising heat exchange of heat pipe according to claim 1, which is characterized in that the PLC control module is according to multistage
Rise the set value calculation electric control valve one of gas temperature and the aperture of electric control valve two in heat exchange of heat pipe, wherein at PLC
Manage aperture of the device one according to the set value calculation electric control valve one of gas temperature in first-class heat exchanger, two basis of PLC processor
The aperture of the set value calculation electric control valve two of gas temperature in secondary heat exchanger.
8. multistage rising heat exchange of heat pipe according to claim 2, which is characterized in that the protection sleeve pipe is using heat-resisting stainless
Steel pipe or ceramic post sintering pipeline.
9. multistage rising heat exchange of heat pipe according to claim 3, which is characterized in that the protection sleeve pipe is using heat-resisting stainless
Steel pipe or ceramic post sintering pipeline.
10. multistage rising heat exchange of heat pipe according to claim 1, which is characterized in that the first-class heat exchanger is changed with second level
Hot device is in series or in parallel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920139186.7U CN209655881U (en) | 2019-01-28 | 2019-01-28 | A kind of multistage rising heat exchange of heat pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920139186.7U CN209655881U (en) | 2019-01-28 | 2019-01-28 | A kind of multistage rising heat exchange of heat pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577338A (en) * | 2020-12-30 | 2021-03-30 | 乔治洛德方法研究和开发液化空气有限公司 | High-temperature fluid transportation pipeline internally provided with heat exchange equipment, applicable heat exchange equipment and heat exchange method |
| CN112595146A (en) * | 2020-12-29 | 2021-04-02 | 乔治洛德方法研究和开发液化空气有限公司 | High-temperature fluid transportation pipeline with pipeline shell formed by heat exchange equipment, applicable heat exchange equipment and heat exchange method |
-
2019
- 2019-01-28 CN CN201920139186.7U patent/CN209655881U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595146A (en) * | 2020-12-29 | 2021-04-02 | 乔治洛德方法研究和开发液化空气有限公司 | High-temperature fluid transportation pipeline with pipeline shell formed by heat exchange equipment, applicable heat exchange equipment and heat exchange method |
| CN112595146B (en) * | 2020-12-29 | 2023-09-12 | 乔治洛德方法研究和开发液化空气有限公司 | High-temperature fluid transportation pipeline with pipeline shell composed of heat exchange equipment, applicable heat exchange equipment and heat exchange method |
| CN112577338A (en) * | 2020-12-30 | 2021-03-30 | 乔治洛德方法研究和开发液化空气有限公司 | High-temperature fluid transportation pipeline internally provided with heat exchange equipment, applicable heat exchange equipment and heat exchange method |
| US11940228B2 (en) | 2020-12-30 | 2024-03-26 | L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | High-temperature fluid transporting pipeline with heat exchange apparatus installed therein, suitable heat exchange apparatus and heat exchange method |
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Effective date of registration: 20200714 Address after: 116011 No. 17, No. 2 Shengli Road, Xigang District, Dalian City, Liaoning Province Co-patentee after: Song Changjiang Patentee after: Shi Xin Address before: No. 38-1 Zhongxing Street, Heping District, Shenyang, Liaoning 110057 Patentee before: He Youwei |
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