CN205693912U - A kind of shell-and-tube hollow bushing resistance heater - Google Patents
A kind of shell-and-tube hollow bushing resistance heater Download PDFInfo
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- CN205693912U CN205693912U CN201620580387.7U CN201620580387U CN205693912U CN 205693912 U CN205693912 U CN 205693912U CN 201620580387 U CN201620580387 U CN 201620580387U CN 205693912 U CN205693912 U CN 205693912U
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- hollow bushing
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Abstract
The utility model discloses a kind of shell-and-tube hollow bushing resistance heater, its heating assembly is double-layer hollow resistance sleeve pipe, each double-layer hollow resistance sleeve pipe is added heat pipe by nested outer layer and internal layer adds heat pipe and forms, the afterbody of each two double-layer hollow resistance sleeve pipe flexibly connects sheet by electrode and is connected, and forms U-shaped loop.This utility model simple and ingenious structure, programming rate is fast, efficiency is high, the pressure loss is little；Use, easy to operate, quick, safety precautions is perfect；Range of accommodation width, temperature-controlled precision is high, governing speed is fast；The problems such as can solve the heating of current electric heater fluid medium particularly gas uneven, incessantly, service life is the longest for gas converting heat effect, and in electric heater the hot-spot of heating is serious, to reach technological requirement, it is ensured that the safety and stability of production.
Description
Technical field
This utility model relates to electric heater field, particularly to a kind of high pressure, high temperature, big flow, high-power, explosion-proof
Shell-and-tube hollow double-jacket tube resistance heater.
Background technology
In many industrial process, the heating of gas medium is extremely important, especially for chemical process, it is often necessary to
According to technological requirement, high temperature, high pressure, one or more poisonous, harmful, inflammable, explosive mixed gas are heated to a constant temperature
Degree, stablizes, in order to react, the generation carrying out and reducing by-product, and the control to temperature is strict.Meanwhile, gas heating also to be done
To homogeneous heating, good effect of heat exchange, in heating system, heating can not have hot-spot phenomenon, to avoid other chemistry anti-
Should, heating element heater is even blown in corrosion.
In prior art, the gas medium such as high temperature, high pressure is added overabundant heat and uses pressure vessel and electric heating tube binding to close
Mode, or shell-and-tube heat exchanger.Shell-and-tube heat exchanger, equipment manufacturing cost is expensive, and volume is heavy, due to container internal circulation
Area is relatively large, and velocity of medium is slow, and the coefficient of heat transfer is the lowest, and additionally flow field is uneven, so efficiency is low.And electrical heating bundled tube
Typically a number of resistance wire being inserted heat exchanger tube respectively, heat exchanger tube is welded on flange formation heating core, then by this heating core
It is welded on heater housings formation tube bank electric heater.
Also having a kind of routine techniques, use hollow pipe heating, mode of heating is more quick, but this mode of heating is by electric current
Density, apparent power and heat transfer rate and the impact of warmer volume, it is achieved high pressure, high temperature, big flow, large power, electrically heater difficulty
Relatively big, and uneconomical, even it is difficulty with.
It is uneven that gas heater of the prior art still suffers from gas heating, and incessantly, service life is the longest for heat transfer effect
Etc. defect, so that some gas or mixed gas have hot-spot phenomenon to occur in electric heater, corrosion is even blown
Heating, causes inflammable, explosive, poisonous gas to leak, and brings major safety risks, and impact is normal to be produced.
Meanwhile, because the electric heater of prior art is structure and unreasonable on controlling, resistance tube is in long-time running
Time, it is susceptible to come off, causes the phenomenon of electric leakage to occur, cause in actual production and can not be heated to temperature required, even by gas
Sometimes because transient current is excessive, cause heating large area to puncture and burn out.
Utility model content
In view of heating uneven by electric heater fluid medium particularly gas at present, gas converting heat effect incessantly, makes
The longest with the life-span, the problems such as in electric heater the hot-spot of heating is serious, this utility model provides a kind of shell-and-tube empty
Heart casing resistance heater, uses hollow double-jacket tube resistance to directly heat, in conjunction with shell-and-tube pressure vessel enclosure, it is achieved high pressure,
High temperature, big flow, high-power, explosion-proof shell-and-tube hollow double-jacket tube resistance directly heat.
For reaching above-mentioned purpose, embodiment of the present utility model adopts the following technical scheme that
A kind of shell-and-tube hollow bushing resistance heater, including shell, inner bag and the resistance heating group being arranged in inner bag
Part, described electric resistance heating assembly is hollow bushing electric resistance heating assembly, including one or more double-layer hollow resistance sleeve pipes, each
Double-layer hollow resistance sleeve pipe is added heat pipe by mutually nested outer layer and internal layer adds heat pipe and forms, each two double-layer hollow resistance sleeve pipe
Afterbody by electrode flexibly connect sheet be connected, form U-shaped loop.
According to an aspect of the present utility model, described shell is pressure resistant vessel, including gas inlet pipe, upper cover, on
End socket sealing flange molectron, cylinder, low head, low head sealing flange molectron and gas outlet tube；Upper cover, lower envelope
Head is connected to the two ends of cylinder respectively by upper cover sealing flange molectron, low head sealing flange molectron, upper cover, under
The end of end socket connects gas inlet pipe, gas outlet tube respectively.
According to an aspect of the present utility model, described inner bag is non-pressure container, including inner shell and entrance current equalizer；
In the shell that inner shell is arranged on upper cover, cylinder, low head are formed, the gas that entrance current equalizer is arranged in upper cover enters
Below mouth pipe.
According to an aspect of the present utility model, described hollow bushing electric resistance heating assembly also includes high pressure resistant insulation pipe
Plate and lower high pressure resistant insulation tube sheet；Described upper high pressure resistant insulation tube sheet and lower high pressure resistant insulation tube sheet are fixed with inner bag；Each bilayer
Hollow resistance sleeve pipe is spaced and parallel to be interspersed between described upper high pressure resistant insulation tube sheet and lower high pressure resistant insulation tube sheet, cuts at cylinder
Face is triangular in shape, hexagon or arranged in concentric circles.
According to an aspect of the present utility model, described internal layer adds the length of heat pipe and adds the length of heat pipe more than outer layer, often
Two internal layers add the afterbody of heat pipe and flexibly connect sheet by electrode and be connected.
According to an aspect of the present utility model, the material of described double-layer hollow resistance sleeve pipe includes but not limited to high temperature resistant
Stainless steel tube, ferroaluminium, nichrome.
According to an aspect of the present utility model, the quantity of described double-layer hollow resistance sleeve pipe is 30～120 groups.
According to an aspect of the present utility model, described double-layer hollow resistance sleeve pipe is energized.
According to an aspect of the present utility model, described electrode flexibly connects and uses star-like connection between sheet.
According to an aspect of the present utility model, between described shell and inner bag, inner bag and outer layer add and be full of between heat pipe
Gas.
The advantage that this utility model is implemented:
(1) simple and ingenious structure of the present utility model, have employed at least two and is added heat pipe by outer layer and internal layer adds heat pipe heat
The sleeve structure become, pressure-containing member, can high temperature high voltage resistant by design of pressure vessels；
(2) using heating muff, multichannel heat exchange, heat exchange area is big, and heat exchange efficiency is high, can meet large power, electrically heater
Requirement；
(3) coordinating current-sharing design, each sleeve structure even flow field, flow velocity is fast, and electric heating element surface rating is big；
(4) double-layer heating hollow bushing selects the exotic materials such as nickel-base alloy, and is sealed in the furnace shell of pressure-bearing；Power supply
Power supply enters into double-layer heating hollow bushing make it generate heat, though having by being sealed in pressure cylinder upper end (gas access end) electrode
High temperature, high pressure, high velocity air pass through, and the change of its versus environmental is little, when high and low variations in temperature, reuses choosing
Material remains to keep original mechanical performance, it can be ensured that heater is long for service life, and safety is high, non-environmental-pollution；Pass through power
Electric heater output is adjusted by actuator, controls heated temperature of charge by this kind more uniform.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, will make required in embodiment below
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only embodiments more of the present utility model,
For those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain according to these accompanying drawings
Other accompanying drawing.
Fig. 1 is the shell-and-tube hollow bushing resistance heater structural representation according to this utility model one better embodiment
Figure.
Fig. 2 is that the shell-and-tube hollow bushing resistance heater electrode layout according to this utility model one better embodiment is shown
It is intended to.
Fig. 3 is the electrode connection mode schematic diagram according to this utility model one better embodiment.
Description of reference numerals: 1-gas inlet pipe；2-entrance current equalizer；3-upper cover；4-inner shell；5-upper cover seals
Flange combination part；6-upper high pressure resistant insulation tube sheet；7-double-layer hollow resistance sleeve pipe；8-cylinder；High pressure resistant insulation tube sheet under 9-；
10-low head sealing flange molectron；11-low head；12-gas outlet tube；13-electrode flexibly connects sheet；14-internal layer heats
Pipe；15-outer layer adds heat pipe.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
As it is shown in figure 1, this utility model is mainly by shell, inner bag, hollow bushing electric resistance heating assembly and electrode assemblie
Four major part compositions.
Shell is pressure resistant vessel, by design of pressure vessels, by gas inlet pipe 1, upper cover 3, upper cover sealing flange group
Component 5, cylinder 8, low head 11, low head sealing flange molectron 10 and gas outlet tube 12 form.Upper cover 3, lower envelope
11 are connected to up and down the two of cylinder 8 respectively by upper cover sealing flange molectron 5, low head sealing flange molectron 10
End, upper cover 3, the end of low head 11 connect gas inlet pipe 1, gas outlet tube 12 respectively.Heater can be vertical or sleeping
Formula, gas inlet and outlet can be with upper entering and lower leaving.
Inner bag is non-pressure container, plays water conservancy diversion heat-blocking action, including inner shell 4 and entrance current equalizer 2.Inner shell 4 is arranged on
In the shell being made up of upper cover 3, cylinder 8, low head 11, entrance current equalizer 2 is arranged on the gas access in upper cover 3
The lower section of pipe 1.The effect of entrance current equalizer 2 is so that gas is entered back into hollow bushing resistance heating group after uniform flow field
Part, hollow bushing electric resistance heating assembly and heated gas high efficient heat exchanging, it is possible to decrease the energy consumption of heater, and improve simultaneously
The whole service life of heater.
Hollow bushing electric resistance heating assembly is the core of device, by double-layer hollow resistance sleeve pipe 7, upper high pressure resistant insulation
Tube sheet 6 and lower high pressure resistant insulation tube sheet 9 form.Upper high pressure resistant insulation tube sheet 6 and lower high pressure resistant insulation tube sheet 9 are parallel to each other,
Vertical with the inwall of inner shell 4 respectively it is connected.Double-layer hollow resistance sleeve pipe 7 is electrical heating original paper, spaced and parallel is interspersed in resistance to height
Between voltage insulation tube plate 6 and lower high pressure resistant insulation tube sheet 9, and upper high pressure resistant insulation tube sheet 6 and lower high pressure resistant insulation tube sheet 9 are with double
The hollow resistance sleeve pipe of layer 7 is fixing to be connected, by upper high pressure resistant insulation tube sheet 6 and lower high pressure resistant insulation tube sheet 9, double-layer hollow is electric
Resistance sleeve pipe 7 is fixed support, it is ensured that overall stability.As it is shown on figure 3, each double-layer hollow resistance sleeve pipe 7 is by mutually
Nested outer layer adds heat pipe 15 and internal layer adds heat pipe 14 and forms, and internal layer adds the length of heat pipe 14 and adds the length of heat pipe 15 more than outer layer
Degree.Double-layer hollow resistance sleeve pipe 7 uses the positive triangle of heat exchange cast to arrange, is on the one hand easy to electrode three phase connection and connects, on the one hand
Be conducive to heating uniformity.In addition to triangular arrangement, it is possible to use hexagon or arranged in concentric circles.
Electrode assemblie, is primarily referred to as electrode and flexibly connects sheet 13.As it is shown on figure 3, two-by-two internal layer add heat pipe 14 afterbody lead to
Cross electrode to flexibly connect sheet 13 and be connected, form U-shaped loop.Electrode connection typically uses star-like connection.
Operation principle of the present utility model is: this shell-and-tube hollow bushing resistance heater, is to use heating hollow bushing
A kind of gas resistance heater of structure multichannel heat exchange mode.High-pressure gas medium enters from the gas inlet pipe 1 of upper cover 3
Enter, after entrance current equalizer 2 current-sharing, enter the 30～120 groups of double-layer hollow resistance sleeve pipes 7 having led to electricity, added by internal layer
After the circular passage heating that circular channel in the middle of heat pipe 14 and outer layer add heat pipe 15 and internal layer adds between heat pipe 14, through low head
The gas outlet tube 12 of 11 flows out.
It is all air chamber that shell and inner bag, inner bag and outer layer add the cavity between heat pipe 15, gassy, microfluidic, rises
Water conservancy diversion heat-blocking action.The temperature rise of shell is slow, and thermal loss is few.Most gases can only lead to the double-layer hollow electricity of electricity
The resistance circle of sleeve pipe 7 and circular passage, make gas by multichannel heating (gas in double-layer hollow resistance sleeve pipe 7 by internal layer
Add heat pipe 14 inner surface, internal layer adds heat pipe 14 outer surface and outer layer add heat pipe 15 inner surface three surface resistance heating, microfluidic every
Hot gas is added the heat pipe 15 micro-heating of outer surface fourth face by outer layer), carry out quick heat exchange, complete the heating process of gas.
Operating pressure of the present utility model is 0.1～10MPa, and operating temperature is room temperature～1000 DEG C, and output is
1000～40000KW.
Double-layer hollow resistance sleeve pipe 7 material therefor requires to have that temperature-coefficient of electrical resistance is little, resistivity big, is difficult at high temperature
Deformation, the feature such as rotten.Heating hollow pipe is selected according to operating temperature and gas medium character.Common material has high temperature resistant
Stainless steel tube, ferroaluminium, nichrome etc..
Double-layer hollow resistance sleeve pipe 7 quantity, caliber, wall thickness etc. is by heater power, electric current density, apparent power, gas
The parameter determinations such as pressure, flow, temperature.Consider the value of electric current density under certain air velocity；Stringing diameter and pipe
Long ratio；Heat insulation leafing span from；The many factors such as electrode connection, water-cooled space.
Gas passes through circle and the circular passage of double-layer hollow resistance sleeve pipe 7, and its heat exchange efficiency is up to more than 95%, without hindrance
Power, the pressure loss is less.Negotiation speed is fast, and the time is short, and system is without accumulation of heat existence condition, and thermal inertia is the least, start and stop electricity heating device
Easily, heating/cooling speed is fast, electric heating element surface rating desirable 1.0～9.0w/cm2.
Electric heater output is adjusted by this utility model by power governor, is controlled heated by this kind
Temperature of charge is more uniform.
This utility model heater can use multiple serial or parallel connection to reach technique purpose.
To sum up, this utility model shell-and-tube hollow bushing resistance heater: use double-layer heating hollow sleeve tubular structure is many
Runner heat exchange mode, programming rate is fast, efficiency is high, the pressure loss is little, use, easy to operate, quick, safety precautions is complete
Kind, range of accommodation width, temperature-controlled precision is high, governing speed is fast, saves the outstanding advantages such as the energy, environmentally safe.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model does not limit to
In this, any those skilled in the art in technical scope disclosed in this utility model, the change that can readily occur in
Change or replace, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with described
Scope of the claims is as the criterion.
Claims (10)
1. a shell-and-tube hollow bushing resistance heater, including shell, inner bag and the electric resistance heating assembly being arranged in inner bag,
It is characterized in that, described electric resistance heating assembly is hollow bushing electric resistance heating assembly, including one or more double-layer hollow resistance
Sleeve pipe, each double-layer hollow resistance sleeve pipe is added heat pipe by mutually nested outer layer and internal layer adds heat pipe and forms, and each two bilayer is empty
The afterbody of electrocardio resistance sleeve pipe flexibly connects sheet by electrode and is connected, and forms U-shaped loop.
Shell-and-tube hollow bushing resistance heater the most according to claim 1, it is characterised in that described shell is that pressure-bearing is held
Device, including gas inlet pipe, upper cover, upper cover sealing flange molectron, cylinder, low head, the combination of low head sealing flange
Part and gas outlet tube；Upper cover, low head are combined by upper cover sealing flange molectron, low head sealing flange respectively
Part is connected to the two ends of cylinder, and upper cover, the end of low head connect gas inlet pipe, gas outlet tube respectively.
Shell-and-tube hollow bushing resistance heater the most according to claim 1, it is characterised in that described inner bag is non-pressure
Container, including inner shell and entrance current equalizer；In the shell that inner shell is arranged on upper cover, cylinder, low head are formed, entrance is equal
Below the gas inlet pipe that stream device is arranged in upper cover.
Shell-and-tube hollow bushing resistance heater the most according to claim 1, it is characterised in that described hollow bushing resistance
Heating assembly also includes high pressure resistant insulation tube sheet and lower high pressure resistant insulation tube sheet；Described upper high pressure resistant insulation tube sheet and under resistance to height
Voltage insulation tube plate is fixed with inner bag；Each double-layer hollow resistance sleeve pipe is spaced and parallel be interspersed in described upper high pressure resistant insulation tube sheet with under
Between high pressure resistant insulation tube sheet, hexagon triangular in shape in cylinder cross section or arranged in concentric circles.
Shell-and-tube hollow bushing resistance heater the most according to claim 1, it is characterised in that described internal layer adds heat pipe
Length adds the length of heat pipe more than outer layer, and each two internal layer adds the afterbody of heat pipe, and to flexibly connect sheet by electrode connected.
Shell-and-tube hollow bushing resistance heater the most according to claim 1, it is characterised in that described double-layer hollow resistance
The material of sleeve pipe includes but not limited to high temperature resistant stainless steel pipe, ferroaluminium, nichrome.
Shell-and-tube hollow bushing resistance heater the most according to claim 1, it is characterised in that described double-layer hollow resistance
The quantity of sleeve pipe is 30～120 groups.
Shell-and-tube hollow bushing resistance heater the most according to claim 1, it is characterised in that described double-layer hollow resistance
Sleeve pipe is energized.
Shell-and-tube hollow bushing resistance heater the most according to claim 1, it is characterised in that described electrode flexibly connects
Star-like connection is used between sheet.
Shell-and-tube hollow bushing resistance heater the most according to claim 1, it is characterised in that described shell and inner bag
Between, inner bag and outer layer add gassy between heat pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620580387.7U CN205693912U (en) | 2016-06-15 | 2016-06-15 | A kind of shell-and-tube hollow bushing resistance heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620580387.7U CN205693912U (en) | 2016-06-15 | 2016-06-15 | A kind of shell-and-tube hollow bushing resistance heater |
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| Publication Number | Publication Date |
|---|---|
| CN205693912U true CN205693912U (en) | 2016-11-16 |
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ID=57428819
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620580387.7U Active CN205693912U (en) | 2016-06-15 | 2016-06-15 | A kind of shell-and-tube hollow bushing resistance heater |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855304A (en) * | 2017-03-03 | 2017-06-16 | 华能无锡电热器材有限公司 | Boundling short-circuit type electric heater |
| CN107517504A (en) * | 2016-06-15 | 2017-12-26 | 上海韵申新能源科技有限公司 | A kind of shell-and-tube hollow bushing resistance heater |
| CN108240706A (en) * | 2017-04-01 | 2018-07-03 | 上海韵申新能源科技有限公司 | A kind of multi partition high temperature electrical heater |
-
2016
- 2016-06-15 CN CN201620580387.7U patent/CN205693912U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107517504A (en) * | 2016-06-15 | 2017-12-26 | 上海韵申新能源科技有限公司 | A kind of shell-and-tube hollow bushing resistance heater |
| CN107517504B (en) * | 2016-06-15 | 2023-08-04 | 上海韵申新能源科技有限公司 | Shell-and-tube hollow sleeve resistance heater |
| CN106855304A (en) * | 2017-03-03 | 2017-06-16 | 华能无锡电热器材有限公司 | Boundling short-circuit type electric heater |
| CN108240706A (en) * | 2017-04-01 | 2018-07-03 | 上海韵申新能源科技有限公司 | A kind of multi partition high temperature electrical heater |
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