CN110207371A - A kind of heater for supercritical generating sets vent gas treatment - Google Patents
A kind of heater for supercritical generating sets vent gas treatment Download PDFInfo
- Publication number
- CN110207371A CN110207371A CN201910469692.7A CN201910469692A CN110207371A CN 110207371 A CN110207371 A CN 110207371A CN 201910469692 A CN201910469692 A CN 201910469692A CN 110207371 A CN110207371 A CN 110207371A
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- heater body
- heater
- swivel nut
- electric heating
- explosion
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- 238000005485 electric heating Methods 0.000 claims abstract description 58
- 238000010079 rubber tapping Methods 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 35
- 239000012530 fluid Substances 0.000 claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 18
- 229910000906 Bronze Inorganic materials 0.000 claims abstract description 10
- 239000010974 bronze Substances 0.000 claims abstract description 10
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 10
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000035807 sensation Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000036760 body temperature Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/002—Air heaters using electric energy supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1863—Arrangement or mounting of electric heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
- F24H9/2071—Arrangement or mounting of control or safety devices for air heaters using electrical energy supply
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H2250/00—Electrical heat generating means
- F24H2250/02—Resistances
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The present invention is used for the heater of supercritical generating sets vent gas treatment, helical form process fluid pipe cast molding is inside the heater body of tin bronze material, more single-ended electric heating tubes are respectively from up to down through installation, middle part is fixedly mounted on heater body top by self tapping swivel nut and limit swivel nut cooperation sealing, bottom end is connected on heater body bottom surface by the fixed limit of blind nut, and the band explosion-proof thermocouple of temperature transmitter is inserted into inside heater body from up to down；Heater body upper end counterbore passes through the fixed support installation explosion-proof wiring box of terminal bracket, lower counterbore is coupled connection to corresponding mounting structure on supercritical generating sets equipment exhaust gas channel, small in size, compact-sized, installation attended operation is convenient, the overall structural strength that cast molding is constituted is high, heat exchanger effectiveness is high, can adapt to supercritical generating sets high temperature, high pressure Severe operating conditions under requirement, long service life, safety coefficient is high, reliable and stable.
Description
Technical field
The present invention relates to a kind of heaters for supercritical generating sets vent gas treatment.
Background technique
Supercritical unit is because the thermal efficiency is high, coal consumption is low, start and stop speed is fast, economy with higher, while again because of burning
The oxynitrides generated in the process and other harmful substance contents are reduced, meet in national policy regulation about it is energy-saving,
The standard requirements of environmental emission reduction, thus be widely popularized and applied in the fired power generating unit in power plant；Although supercritical generating sets have
Have many advantages, such as, but the discharge content of its pollutant is still higher；Heater in system technology for vent gas treatment generally passes through
Connection method manufacture shell is welded and fixed, volume is big and heavy, and installation attended operation is inconvenient, and heat exchanger effectiveness is low, on shell
It also needs that the components mounting holes such as electrode, heating tube, fluid hose are arranged by punching technology, destroys the integrality of shell structure,
Supercritical generating sets high temperature, high pressure Severe operating conditions under intensity difference, the thermal efficiency is low, and service life is short, and there are safety
Hidden danger does not adapt to postcritical high temperature and pressure requirement.
Summary of the invention
The technical problem to be solved by the invention is to provide one kind can adapt to the harsh work item of postcritical high temperature and pressure
Part, long service life, the high-efficient heater for supercritical generating sets vent gas treatment.
The present invention is used for the heater of supercritical generating sets vent gas treatment, it is characterised in that: including Cylindrical heater
Ontology, heater body are the cast member being made up of bronze material casting technique, close lateral surface inside heater body
Position be provided with helical form process fluid pipe, process fluid pipe main part is fixed inside heater body, both ends
Self-heating device body bottom portion is extend out to outside heater body, and is connected separately with air inlet pipe, escape pipe；Heater body is located at
Part on the inside of process fluid pipe is fixedly installed more single-ended electric heating tubes, and more single-ended electric heating tubes are along the circumferential direction uniform
Distribution, every single-ended electric heating tube run through the installation through-hole inside heater body, every single-ended electric heating tube middle part along longitudinal direction
It is fixedly mounted on heater body top by self tapping swivel nut and limit swivel nut cooperation sealing, every single-ended electric heating tube bottom end is logical
The fixed limit of blind nut is crossed to be connected on heater body bottom surface；More single-ended electric heating tube tops are connected with explosion-proof by power supply line
Junction box；Heater body top dead center position is provided with support counterbore, and explosion-proof wiring box bottom is fixedly connected with terminal box branch
Frame, terminal bracket lower section and support counterbore are fixedly mounted by interference fit, so that explosion-proof wiring box passes through terminal bracket
It is fixedly supported on above heater body with support counterbore cooperation；Heater body is located at the portion on the inside of more single-ended electric heating tubes
Point be fixedly installed with the band explosion-proof thermocouple of temperature transmitter, in the middle part of the explosion-proof thermocouple of band temperature transmitter also by self tapping swivel nut with
Limit swivel nut cooperation sealing is fixedly mounted on heater body top, and the band explosion-proof thermocouple lower end of temperature transmitter is stretched straight down
Enter to heater body, upper end is located at below explosion-proof wiring box between heater body in space；Explosion-proof wiring box connects
It is connected to temperature-controlling cabinet, temperature-controlling cabinet communication connection to the band explosion-proof thermocouple of temperature transmitter；
The explosion-proof wiring box is that shell is cylindrical shape, is along the circumferential direction evenly arranged with quantity, angle on cylindrical housing sidewall
Degree and single-ended electric heating tube quantity, the consistent incoming line of angle, the power supply line of every single-ended electric heating tube is through on corresponding position
Incoming line is connected to the connecting terminal inside explosion-proof wiring box；
The power supply line outer cover of the every single-ended electric heating tube is equipped with wire protective hose, so that every single-ended electric heating tube
The P font of power supply line composition one side opening of top；
Self tapping swivel nut inner cavity is smooth bore, and self tapping swivel nut outer surface middle section is nut segment, the portion below nut segment
It is divided into tapping screw thread section, self tapping swivel nut is fixedly connected on the installation through-hole top inner cavity of heater body by tapping screw thread；From
Attacking the part that swivel nut outer surface is located above nut segment is external screw thread linkage section, and external screw thread linkage section is along the circumferential direction uniformly arranged
There is a plurality of open slot axially extended downwards from connection screw thread section top, so that external screw thread linkage section upper section is configured to shrink
Expansion nested structure；The limit being fastenedly connected can be cooperated with the external screw thread linkage section of self tapping swivel nut by being provided with above self tapping swivel nut
Swivel nut, limit swivel nut are fastenedly connected by internal screw thread and external screw thread linkage section, limit and be provided between swivel nut and self tapping swivel nut
Cushion cover, cushion cover lower section outer surface are the rounding conical surface, and middle section is cylindrical surface, and cushion cover top is provided with circular ring shape spacing collar, and cushion cover is logical
It crosses rounding conical surface space between self tapping swivel nut inner cavity and single-ended electric heating tube to protrude into, and self tapping is limited by circular ring shape spacing collar
Above swivel nut；
The part that the heater body is located on the inside of process fluid pipe is fixedly installed the single-ended electric heating tube of the six roots of sensation, heater sheet
The partial symmetry that body is located on the inside of the single-ended electric heating tube of the six roots of sensation is equipped with two band explosion-proof thermocouples of temperature transmitter；
Process fluid pipe one end is located at heater body interior side bottom, and the other end is located at another inside heater body
Lateral roof, and extend out to outside heater body by one section of vertical pipe；
The incone1625 high temperature alloy that the process fluid tube material is 1400 DEG C of fusing point, heater body material are fusing point
1050 DEG C of tin bronze, process fluid pipe and heater body constitute monolithic construction by cast molding；
The temperature-controlling cabinet is provided with control system, and control system is DCS or PLC, is additionally provided with DJK stepless pressure regulation system；
The temperature-controlling cabinet is connected to six sets of heaters for supercritical generating sets vent gas treatment simultaneously；
Heater body bottom center position is provided with installation bottom outlet, and heater body can pass through the fixed peace of installation bottom outlet
In supercritical generating sets equipment.
The present invention is used for the heater of supercritical generating sets vent gas treatment, and process fluid pipe adds simultaneously with tin bronze material
Heat to tin bronze melts, and cast molding is the heater body of monolithic construction, and heater body is located on the inside of process fluid pipe
Part be fixedly installed more single-ended electric heating tubes, more single-ended electric heating tubes difference self-heating device ontology upper ends downward through
After installation through-hole, middle part is fixedly mounted on heater body top by self tapping swivel nut and limit swivel nut cooperation sealing, and bottom end is logical
It crosses the fixed limit of blind nut to be connected on heater body bottom surface, it is heavy that heater body upper and lower ends center is respectively arranged with
Hole, top counterbore pass through the fixed support installation explosion-proof wiring box of terminal bracket, lower counterbore and supercritical generating sets equipment
Corresponding mounting structure is coupled connection on exhaust gas channel, small in size, compact-sized, and installation attended operation is convenient, cast molding
The overall structural strength of composition is high, and heat exchanger effectiveness is high, can adapt to the harsh work item of supercritical generating sets high temperature, high pressure
Requirement under part, long service life, safety coefficient is high, reliable and stable.
Detailed description of the invention
Fig. 1 is that heater of the embodiment of the present invention for supercritical generating sets vent gas treatment installs 6 single-ended electric heating
The planar structure schematic diagram of pipe；
Fig. 2 is the A-A view of Fig. 1；
Fig. 3 is the B-B view of Fig. 1；
Fig. 4 is self tapping of the embodiment of the present invention for heater every single-ended electric heating tube of supercritical generating sets vent gas treatment
Swivel nut and limit swivel nut connection structure position partial enlargement diagram；
Fig. 5 is self tapping of the embodiment of the present invention for heater every single-ended electric heating tube of supercritical generating sets vent gas treatment
Partial enlargement diagram after swivel nut and limit swivel nut connection structure are decomposed；
Fig. 6 is self tapping of the embodiment of the present invention for heater every single-ended electric heating tube of supercritical generating sets vent gas treatment
Swivel nut enlarged diagram；
Fig. 7 is that heater of the embodiment of the present invention for supercritical generating sets vent gas treatment installs 14 single-ended electric heating tubes
Structural schematic diagram；
Fig. 8 is the bottom view of Fig. 7.
Specific embodiment
As shown, a kind of heater for supercritical generating sets vent gas treatment, is closed using incone1625 high temperature
After golden tubing coiling is shaped to helical form process fluid pipe 8, it is heated to tin bronze fusing simultaneously with tin bronze material, passes through mold
Cast molding is the cylindrical cast member heater body 13 of monolithic construction, compact-sized, small in size, overall structural strength
Height, heat exchanger effectiveness are high, can adapt to supercritical generating sets high temperature, high pressure Severe operating conditions under requirement, make
Long with the service life, safety coefficient is high, reliable and stable.
Helical form process fluid pipe 8 positions the position being arranged in inside the entity part of heater body 13 close to lateral surface
It sets, the helical form main part of process fluid pipe 8 is fixed inside heater body 13,13 bottom of both ends self-heating device ontology
Portion is extend out to outside heater body, and is connected separately with air inlet pipe 11, escape pipe 12, and process fluid pipe one end is located at heater
One side bottom of body interior, the other end are located inside heater body at the top of the other side, and are extend out to and added by one section of vertical pipe
Hot device body exterior, both ends can be separately connected air inlet pipe 11 or escape pipe 12, and this example selects low order end to connect inlet end, high
Position end connects outlet side, meets the trend of thermal current rising.
The entity part that heater body 13 is located on the inside of process fluid pipe is fixedly installed more single-ended electric heating tubes 4,
More single-ended electric heating tubes 4 are distributed uniformly and circumferentially, every single-ended electric heating tube 4 with terminals upward, closed end downward
Direction run through the installation through-hole inside heater body 13 along longitudinal direction, pass through self tapping swivel nut in the middle part of every single-ended electric heating tube 4
14 are fixedly mounted on 13 top of heater body with the limit cooperation sealing of swivel nut 15, and every single-ended 4 bottom end of electric heating tube passes through spiral shell
The fixed limit of lid 10 is connected on heater body bottom surface；More single-ended 4 tops of electric heating tube are connected with explosion-proof by power supply line 3
Junction box 1, and 13 top dead center position of heater body is provided with support counterbore, and 1 bottom of explosion-proof wiring box is fixedly connected with wiring
Box support 6,6 lower section of terminal bracket and support counterbore are fixedly mounted by interference fit, so that explosion-proof wiring box 1 passes through wiring
Box support 6 and support counterbore cooperation are fixedly supported on above heater body, the power supply line 3 on every single-ended 4 top of electric heating tube
It upwardly extends and is stretched to inside explosion-proof wiring box from 1 side wall of explosion-proof wiring box, improve space utilization rate.
Heater body bottom center position is provided with installation bottom outlet 9, and heater body can be fixed by installation bottom outlet 9
It is mounted in supercritical generating sets equipment, occupied space is few.
The entity part that heater body 13 is located at more single-ended 4 insides of electric heating tube is fixedly installed with band temperature transmitter
Explosion-proof thermocouple 5, explosion-proof 5 middle part of thermocouple of band temperature transmitter is also by self tapping swivel nut and the fixed peace of limit swivel nut cooperation sealing
Mounted in 13 top of heater body, the band explosion-proof thermocouple lower end of temperature transmitter is stretched to straight down in heater body 13
Portion, upper end, which is located at below explosion-proof wiring box, in space, further increases space utilization rate between heater body.
Explosion-proof wiring box 1 is additionally coupled to external temperature-controlling cabinet, temperature-controlling cabinet communication connection to the band explosion-proof thermocouple of temperature transmitter
5；The heater for supercritical generating sets vent gas treatment of the present embodiment is in use, temperature-controlling cabinet passes through single-ended electric heating tube
500 DEG C or more are heated to heater body, so that process fluid pipe internal temperature reaches corresponding temperature, band temperature transmitter
Explosion-proof thermocouple monitors heater body temperature signal value at any time, and is delivered to temperature-controlling cabinet by communication connection, is reaching regulation
After temperature value, control system adjusts corresponding power according to temperature signal, so that heater body temperature is stably held in regulation
In working range, run smoothly reliable, safety coefficient is high.
Explosion-proof wiring box 1 is that shell is cylindrical shape, is along the circumferential direction evenly arranged with quantity, angle on cylindrical housing sidewall
Degree and single-ended electric heating tube quantity, the consistent incoming line 2 of angle, the power supply line 3 of every single-ended electric heating tube 4 is through on corresponding position
Incoming line 2 be connected to the connecting terminal inside explosion-proof wiring box 1, operating space will not interfere mutually, install attended operation side
Just, stress equalization.
3 outer cover of power supply line of every single-ended electric heating tube 4 is equipped with wire protective hose, so that every single-ended electric heating tube
Power supply line constitute one side opening of top P font, space layout is simple and compact, will not influence the fixation of explosion-proof wiring box bottom
Installation space.
14 inner cavity of self tapping swivel nut is smooth bore, and 14 outer surface middle section of self tapping swivel nut is nut segment, is located at below nut segment
Part be tapping screw thread section, self tapping swivel nut 14 is fixedly connected on the installation through-hole top of heater body 13 by tapping screw thread
Inner cavity, connection structure is simple, is not necessarily to punching, welding, riveting, will not destroy the heater body overall structure of casting and forming, by force
Degree is high.
It is external screw thread linkage section that 14 outer surface of self tapping swivel nut, which is located at the part above nut segment, and external screw thread linkage section is circumferentially
Direction is evenly arranged with a plurality of open slot axially extended downwards from connection screw thread section top, so that external screw thread linkage section upper section
It is configured to the expansion nested structure shunk, is provided with and can match with the external screw thread linkage section of self tapping swivel nut 14 above self tapping swivel nut 14
The limit swivel nut 15 being fastenedly connected is closed, limit swivel nut 15 is fastenedly connected by internal screw thread and external screw thread linkage section；Limit swivel nut 15
Cushion cover 16 is provided between self tapping swivel nut 14,16 lower section outer surface of cushion cover is the rounding conical surface, and middle section is cylindrical surface, cushion cover 16
Top is provided with circular ring shape spacing collar, and cushion cover 16 passes through rounding conical surface space between self tapping swivel nut inner cavity and single-ended electric heating tube
It protrudes into, and is limited above self tapping swivel nut by circular ring shape spacing collar；Ticking material is the good fine copper of ductility, and limit swivel nut 15 is logical
It crosses internal screw thread and when external screw thread linkage section is fastenedly connected, the expansion nested structure dummy block set sealing for passing through external screw thread linkage section is fixed
Connection, connection is reliable, and performance is stablized.
The incone1625 high temperature alloy that process fluid tube material is 1400 DEG C of fusing point, heater body material are fusing point
Process fluid pipe and heater body are constituted monoblock type knot by cast molding by melting temperature difference by 1050 DEG C of tin bronze
Structure, processing step simplify.
Temperature-controlling cabinet is provided with control system, and control system is DCS or PLC, and temperature measurement can either pass through band temperature pick-up
The explosion-proof thermocouple of device is shown at the scene, can also be shown by PLC or DCS, is specifically subject to curstomer's site requirement；Temperature control
Cabinet is additionally provided with DJK stepless pressure regulation system, and there is manual, automatic 0-600 degree arbitrarily to set, and power adjustable is high-efficient, and operation is flat
It is steady reliable.
The embodiment of the present invention is in the heater of supercritical generating sets vent gas treatment, same temperature-controlling cabinet to connect simultaneously
Six sets of heaters for supercritical generating sets vent gas treatment, every set heater body are located at the portion on the inside of process fluid pipe
Divide and be fixedly installed the single-ended electric heating tube of the six roots of sensation, heater body is located at the installation of the partial symmetry on the inside of the single-ended electric heating tube of the six roots of sensation
There are two band explosion-proof thermocouples of temperature transmitter；
Heater body specification: wherein four sets are φ 200mm, are highly 170mm,
Other two sets are φ 300mm, are highly 170mm；
Wherein four sets of process fluid tube material is incone1625, and specification is φ 6.35 × 2, and spiral number of turns are φ 160 × 10,
Overall length is about 5m；
Other two sets of process fluid tube material is incone1625, and specification is φ 6.35 × 2, and spiral number of turns are φ 260 × 7,
Overall length is about 5.6m；
Wherein four sets of single-end electric-heating tube material be 316L, specification be φ 16, plug-in type, outer fastening, by requirement of explosion proof production, often
Power is 220V/150W, general power 220V/900W, and 6 single-ended electric heating tubes are evenly arranged by figure；
Other two sets of single-end electric-heating tube material be 316L, specification be φ 16, plug-in type, outer fastening, by requirement of explosion proof production, often
Power is 220V/150W, general power 220V/2100W, and 14 single-ended electric heating tubes are evenly arranged by figure；
The band explosion-proof thermocouple of temperature transmitter as temperature element is K-type, and material 316L, specification is φ 6-8mm, by explosion-proof
It is required that production, two band explosion-proof thermocouples of temperature transmitter of every set, accurately and reliably.
Temperature-controlling cabinet is non-explosion-proof, DJK stepless pressure regulation, and there is manual, automatic 0-600 degree arbitrarily to set, and power adjustable receives
DCS or PLC control, specification is 1800 × 800 × 600, using domestic element.
Temperature measurement result can show at the scene but also be shown by PLC or DCS.
Communication interface mode between temperature-controlling cabinet and PLC or DCS is subject to curstomer's site and is required.
The present invention is for being additionally provided with insulating layer, insulation layer thickness outside the heater of supercritical generating sets vent gas treatment
For 100mm, scene heat preservation.
IP degree of protection is IP65, and explosive-proof grade ExdIICT4, explosion-proof wiring box enclosure is 304 stainless steels, supply voltage
220V/50Hz。
The present invention is used for the heater of supercritical generating sets vent gas treatment, and process fluid pipe adds simultaneously with tin bronze material
Heat to tin bronze melts, and cast molding is the heater body of monolithic construction, and heater body is located on the inside of process fluid pipe
Part be fixedly installed more single-ended electric heating tubes, more single-ended electric heating tubes difference self-heating device ontology upper ends downward through
After installation through-hole, middle part is fixedly mounted on heater body top by self tapping swivel nut and limit swivel nut cooperation sealing, and bottom end is logical
It crosses the fixed limit of blind nut to be connected on heater body bottom surface, it is heavy that heater body upper and lower ends center is respectively arranged with
Hole, top counterbore pass through the fixed support installation explosion-proof wiring box of terminal bracket, lower counterbore and supercritical generating sets equipment
Corresponding mounting structure is coupled connection on exhaust gas channel, small in size, compact-sized, and installation attended operation is convenient, cast molding
The overall structural strength of composition is high, and heat exchanger effectiveness is high, can adapt to the harsh work item of supercritical generating sets high temperature, high pressure
Requirement under part, long service life, safety coefficient is high, reliable and stable.
Claims (10)
1. a kind of heater for supercritical generating sets vent gas treatment, it is characterised in that: including Cylindrical heater ontology,
Heater body is the cast member being made up of bronze material casting technique, the position of close lateral surface inside heater body
It is provided with helical form process fluid pipe, process fluid pipe main part is fixed inside heater body, both ends self-heating
Device body bottom portion is extend out to outside heater body, and is connected separately with air inlet pipe, escape pipe；Heater body is located at technique stream
Part on the inside of body pipe is fixedly installed more single-ended electric heating tubes, and more single-ended electric heating tubes are distributed uniformly and circumferentially,
Every single-ended electric heating tube runs through the installation through-hole inside heater body along longitudinal direction, passes through certainly in the middle part of every single-ended electric heating tube
It attacks swivel nut and limit swivel nut cooperation sealing is fixedly mounted on heater body top, every single-ended electric heating tube bottom end passes through blind nut
Fixed limit is connected on heater body bottom surface；More single-ended electric heating tube tops are connected with explosion-proof wiring by power supply line
Case；Heater body top dead center position is provided with support counterbore, and explosion-proof wiring box bottom is fixedly connected with terminal bracket, connects
Wire box bracket lower section and support counterbore are fixedly mounted by interference fit, so that explosion-proof wiring box passes through terminal bracket and support
Counterbore cooperation is fixedly supported on above heater body；The part that heater body is located on the inside of more single-ended electric heating tubes is fixed
It is provided with the explosion-proof thermocouple of temperature transmitter, the explosion-proof thermocouple middle part of band temperature transmitter is also by self tapping swivel nut and limit spiral shell
Set cooperation sealing is fixedly mounted on heater body top, and the band explosion-proof thermocouple lower end of temperature transmitter stretches to straight down to be added
Hot device body interior, upper end are located at below explosion-proof wiring box between heater body in space；Explosion-proof wiring box is connected with temperature
Control cabinet, temperature-controlling cabinet communication connection to the band explosion-proof thermocouple of temperature transmitter.
2. being used for the heater of supercritical generating sets vent gas treatment according to claim 1, it is characterised in that: described explosion-proof
Wiring tank shell is cylindrical shape, and quantity, angle and single-ended electric heating are along the circumferential direction evenly arranged on cylindrical housing sidewall
The consistent incoming line of pipe quantity, angle, the power supply line of every single-ended electric heating tube are connected to anti-through the incoming line on corresponding position
Connecting terminal inside quick-fried junction box.
3. being used for the heater of supercritical generating sets vent gas treatment according to claim 2, it is characterised in that: every described
The power supply line outer cover of single-ended electric heating tube is equipped with wire protective hose, so that the power supply line of every single-ended electric heating tube constitutes top
Hold the P font of a side opening.
4. being used for the heater of supercritical generating sets vent gas treatment according to claim 1, it is characterised in that: the self tapping
Swivel nut inner cavity is smooth bore, and self tapping swivel nut outer surface middle section is nut segment, and the part below nut segment is tapping screw thread
Section, self tapping swivel nut are fixedly connected on the installation through-hole top inner cavity of heater body by tapping screw thread；Self tapping swivel nut outer surface
Part above nut segment is external screw thread linkage section, and external screw thread linkage section is along the circumferential direction evenly arranged with a plurality of from connection
The open slot that thread segment top axially extends downwards, so that external screw thread linkage section upper section is configured to the expansion noose shunk
Structure；The limit swivel nut being fastenedly connected, limit can be cooperated with the external screw thread linkage section of self tapping swivel nut by being provided with above self tapping swivel nut
Swivel nut is fastenedly connected by internal screw thread and external screw thread linkage section, is limited and has been provided with cushion cover, cushion cover between swivel nut and self tapping swivel nut
Lower section outer surface is the rounding conical surface, and middle section is cylindrical surface, and cushion cover top is provided with circular ring shape spacing collar, and cushion cover passes through the rounding conical surface
Space is protruded between self tapping swivel nut inner cavity and single-ended electric heating tube, and is limited above self tapping swivel nut by circular ring shape spacing collar.
5. being used for the heater of supercritical generating sets vent gas treatment according to claim 1, it is characterised in that: the heating
The part that device ontology is located on the inside of process fluid pipe is fixedly installed the single-ended electric heating tube of the six roots of sensation, and heater body is located at six roots of sensation list
Partial symmetry on the inside of the electric heating tube of end is equipped with two band explosion-proof thermocouples of temperature transmitter.
6. being used for the heater of supercritical generating sets vent gas treatment according to claim 1, it is characterised in that: the technique
Fluid hose one end is located at heater body interior side bottom, and the other end is located inside heater body at the top of the other side, and leads to
One section of vertical pipe is crossed to extend out to outside heater body.
7. being used for the heater of supercritical generating sets vent gas treatment according to claim 1, it is characterised in that: the technique
The incone1625 high temperature alloy that fluid tube material is 1400 DEG C of fusing point, the tin that heater body material is 1050 DEG C of fusing point are green
Copper, process fluid pipe and heater body constitute monolithic construction by cast molding.
8. being used for the heater of supercritical generating sets vent gas treatment according to claim 1, it is characterised in that: the temperature control
Cabinet is provided with control system, and control system is DCS or PLC, is additionally provided with DJK stepless pressure regulation system.
9. being used for the heater of supercritical generating sets vent gas treatment according to claim 1, it is characterised in that: the temperature control
Cabinet is connected to six sets of heaters for supercritical generating sets vent gas treatment simultaneously.
10. being used for the heater of supercritical generating sets vent gas treatment according to claim 1, it is characterised in that: described to add
Re Qi ontology bottom center position is provided with installation bottom outlet, and heater body can be fixedly mounted on overcritical by installation bottom outlet
On generator set device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469692.7A CN110207371A (en) | 2019-05-31 | 2019-05-31 | A kind of heater for supercritical generating sets vent gas treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469692.7A CN110207371A (en) | 2019-05-31 | 2019-05-31 | A kind of heater for supercritical generating sets vent gas treatment |
Publications (1)
| Publication Number | Publication Date |
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| CN110207371A true CN110207371A (en) | 2019-09-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910469692.7A Pending CN110207371A (en) | 2019-05-31 | 2019-05-31 | A kind of heater for supercritical generating sets vent gas treatment |
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| Country | Link |
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| CN (1) | CN110207371A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115264942A (en) * | 2022-08-11 | 2022-11-01 | 江苏捷达粮食设备有限公司 | Grain is dried and is used hot-blast generating device |
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| CN206121521U (en) * | 2016-10-25 | 2017-04-26 | 天津市华邦科技发展有限公司 | Phthalic anhydride tail gas catalytic oxidation reactor |
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| CN210624909U (en) * | 2019-05-31 | 2020-05-26 | 江苏众众电热科技有限公司 | Heater for treating tail gas of supercritical generator set |
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| US20080017632A1 (en) * | 2004-05-26 | 2008-01-24 | Kyocera Corporation | Heater For Heating a Wafer and Method For Fabricating The Same |
| CN206121521U (en) * | 2016-10-25 | 2017-04-26 | 天津市华邦科技发展有限公司 | Phthalic anhydride tail gas catalytic oxidation reactor |
| CN108019933A (en) * | 2018-01-15 | 2018-05-11 | 镇江市春鹏电器有限公司 | A kind of explosion-proof electric heating device |
| CN109152109A (en) * | 2018-08-21 | 2019-01-04 | 镇江裕太防爆电加热器有限公司 | A kind of high voltage anti-explosion heater |
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| CN115264942A (en) * | 2022-08-11 | 2022-11-01 | 江苏捷达粮食设备有限公司 | Grain is dried and is used hot-blast generating device |
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Effective date of registration: 20200422 Address after: 212200, 46 kilometers, 238 provincial road, three Mao street, Yangzhong, Jiangsu, Zhenjiang Applicant after: JIANGSU ZHONGZHONG ELECTRIC HEATING TECHNOLOGY Co.,Ltd. Address before: 212200, 46 kilometers, 238 provincial road, three Mao street, Yangzhong, Jiangsu, Zhenjiang Applicant before: Chen Guijun |