CN202648477U - Radiation type high temperature heat-exchanger - Google Patents
Radiation type high temperature heat-exchanger Download PDFInfo
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- CN202648477U CN202648477U CN 201220249375 CN201220249375U CN202648477U CN 202648477 U CN202648477 U CN 202648477U CN 201220249375 CN201220249375 CN 201220249375 CN 201220249375 U CN201220249375 U CN 201220249375U CN 202648477 U CN202648477 U CN 202648477U
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Abstract
The utility model relates to a radiation type high temperature heat-exchanger which comprises a heat-exchanger body and a shell outside the body. The body comprises an inner tank body and a clamping sleeve body, wherein the lower portion of the body is provided with a high temperature medium inlet, the upper portion of the body is provided with a high temperature medium outlet, a low temperature medium outlet is arranged on one side of the high temperature medium inlet, a low temperature medium inlet is arranged on one side of the high temperature medium outlet, and the high temperature medium inlet is provided with a thermal insulating layer. The radiation type high temperature heat-exchanger has the advantages of being simple in structure and novel in design. Without the help of complicate components, the difficulties in the prior art has been resolved by merely changing the structure based on the prior art. The radiation type high temperature heat-exchanger further has the advantages of being low in cost, safe and reliable, convenient to operate, high in heat transfer efficiency, and capable of being used in extraordinarily high temperature conditions.
Description
Technical field
The utility model relates to a kind of heat exchanger, relates in particular to a kind of mainly surpassing under 1000 ℃ the operating mode in temperature use the radiant type high-temperature heat-exchanging that adopts radiation mode to carry out heat exchange.
Background technology
Advocate under the overall background of low-carbon economy in current country, heat exchanger is being indispensable equipment aspect minimizing fuel consumption and the energy-saving and emission-reduction.In general, temperature in the heat exchange more than 700 ℃ mainly take radiant heat transfer as main, and 700 ℃ with next mainly be convection heat transfer' heat-transfer by convection, with regard to gas-gas heat exchange field, the various forms of heat exchangers that occurred at present are such as heat pipe-type, finned, what plate type heat exchanger was mainly taked is the mode of heat convection, but wherein can with the equipment more than the dielectric heating to 700 ℃ seldom, mainly contain many-sided reason.At first be material thermal stress issues at high temperature, weld seam usually occur at high temperature by the phenomenon of drawing crack; Next is the restriction of metal material attribute, and under hot conditions, especially after working temperature surpassed the allowable temperature of material itself, the strength of materials can sharply descend, and stabilization of equipment performance descends; In addition, the oxide etch under worst hot case also is the key factor of restriction equipment performance.For example Chinese patent application file 94244784.0 discloses " a kind of telescopic coal-fired indirect-heating hot air stove ", body of heater by a plurality of cross section radiuses different but central axis all overlapped cylindrical metal cylinder form, by guide shell and radiant panel are set, utilized to a certain extent hyperthermia radiation heat, eliminate heat exchanging corner, but the deficiency that this equipment exists is, do not consider that thermal expansion that equipment exists causes the problem of weld seam drawing crack under worst hot case, and this equipment requires high to material behavior, need material to keep sufficient intensity under worst hot case.Again such as " indirect hot air stove " mentioned in the patent 200320110982.7 although this high-temperature service has expansion joint at the central interior channel setting, but when air is heated to more than 500 ℃, the metal material of two media side all can have larger thermal stress, and this equipment is not adopted an effective measure for thermal expansion problem outside under the worst hot case, although equipment has adopted the high temperature stainless steel inner bag in addition, has certain corrosion resistance, but only rely on the characteristic of stainless steel itself can not effectively solve the high temperature oxidation and corrosion of metal material, and adopt in a large number high temperature stainless steel also to cause the increase of cost.Therefore, a kind of high-temperature heat-exchanging of exigence satisfies the needs of actual environment.
Summary of the invention
The equipment strength decreased that the utility model is prone under worst hot case for heat exchanger in the prior art just, the problems such as corrosion-deformation and heat-transfer effect are poor, the use of optimal design and high thermal conductivity coefficient nonmetallic materials by device structure, provide a kind of high temperature resistant, anticorrosive, heat transfer efficiency is high, the relatively simple radiant type high-temperature heat-exchanging of structure.
The technical solution of the utility model is as follows, a kind of radiant type high-temperature heat-exchanging, comprise heat exchanger body and the shell that is arranged on this body exterior, it is characterized in that described body comprises inner barrel and jacket cylinder, the bottom of described body is provided with the high-temperature medium import, the top of body is provided with the high-temperature medium outlet, one side of high-temperature medium import is provided with the cryogenic media outlet, one side of high-temperature medium outlet is provided with the cryogenic media import, and described high-temperature medium import department is provided with the carborundum thermal insulation layer of high thermal conductivity coefficient.
As a kind of improvement of the present utility model, described body comprises central high-temperature medium passage and around the cold medium channel around it, central high-temperature medium passage is mainly take radiation heat transfer as main, and cold medium channel is mainly take heat convection as main.According to the heat convection principle, as can be known heat output Φ=
=
, at temperature and pressure
In the certain situation of heat exchange area A, owing to having adopted the high thermal conductivity coefficient castable, can guarantee the thermal conduction resistance of castable
Smaller, same because the heat transfer of high-temperature flue gas side is provided with the radiation deflector take radiation heat transfer as the master and at centre gangway, increased hot side heat transfer coefficient
Value, can guarantee the high temperature side thermal resistance
Smaller, and cold-side fluid is mainly in the mode of heat convection as main.
As a kind of improvement of the present utility model, described inside and outside cylindrical shell is provided with expansion joint, adopts two expansion joints can effectively solve the weld seam drawing crack problem that the thermal stress of metal causes under the worst hot case, and expansion joint can be set to single ripple or many ripples according to operating mode.
As a kind of improvement of the present utility model, be provided with heat exchange fin in the described cold medium channel, this heat exchange fin the heat exchange area that has increased cold medium channel is set
And the flow-disturbing of further strengthening cold side improves
Value, thereby reduce the thermal resistance of cold side
, owing to having adopted above-mentioned these measures further to improve the heat transfer efficiency of heat exchanger integral body.
For prior art, radiant type high-temperature heat-exchanging advantage is as follows: simple in structure, and modern design, this heat exchanger by the parts of complexity, only is not to change for structure on the basis of existing technology, has just solved a difficult problem of the prior art; Cost is lower, and is safe and reliable, easy to operate; Heat transfer efficiency is high, and this heat exchanger can use under ultra-high temperature condition.
Description of drawings
Fig. 1 is the utility model structural representation;
Among the figure: 1 is the high-temperature medium import, and 2 is jacket cylinder, and 3 are the cryogenic media outlet, and 4 is the shell expansion joint, 5 inner barrels, and 6 is the inner barrel expansion joint, and 7 is hanging support, and 8 are the high-temperature medium outlet, and 9 is the cryogenic media import, 10 is thermal insulation layer.
The specific embodiment
In order to deepen understanding of the present utility model, do in detail below in conjunction with 1 pair of radiant type high-temperature heat-exchanging of accompanying drawing
Thin explanation is referring to Fig. 1.
Embodiment 1: as shown in Figure 1, a kind of radiant type high-temperature heat-exchanging, comprise heat exchanger body and the shell that is arranged on this body exterior, it is characterized in that described body comprises inner barrel 5 and jacket cylinder 2, the bottom of described body is provided with high-temperature medium import 1, the top of body is provided with high-temperature medium outlet 8, high-temperature medium outlet 8 is positioned on the center line of heat exchanger with high-temperature medium import 1, one side of high-temperature medium import 1 is provided with cryogenic media outlet 3, this outlet, 3 a little higher than high-temperature medium imports 1, one side of high-temperature medium outlet 8 is provided with cryogenic media import 9, this import 9 slightly is lower than high-temperature medium outlet 8, and described high-temperature medium import department is provided with thermal insulation layer 10, and this thermal insulation layer 10 adopts the resistant to elevated temperatures castable of high thermal conductivity coefficients to make.
This heat exchanger is telescoping structure, can take horizontal or vertical placement, take vertical as example, high-temperature medium enters heat exchanger from high-temperature medium import 1, along the inner barrel 5 central interior high-temperature medium passages equipment of flowing through, this stage is take radiation heat transfer as main, be provided with the thermal insulation layer 10 that the high temperature resistant castable of high thermal conductivity coefficient pours between inner barrel 5 and the jacket cylinder 2, simultaneously, cryogenic media enters in the cold medium channel from cryogenic media import 9, when high-temperature medium along through behind the thermal insulation layer 10, temperature has reduced in the scope of common material license, mainly finishes the convection current of cold and hot medium at cold medium channel.For absorbing thermal expansion, the pipe that the solution thermal stress causes and the thermal stress drawing crack problem of plate, inner barrel is provided with the expansion joint 6 of ripple struction, in addition, be provided with too the shell expansion joint 4 of absorbing thermal expansion in the shell, expansion joint can be set to single ripple or double wave or multiple wave structure; In order further to add strong disturbance, strengthen heat transfer effect, improve heat exchange efficiency, in central high-temperature medium passage, be provided with guide vane; In order to have increased the heat exchange area of cold medium channel, improved the heat transfer efficiency of heat exchanger, in cold medium channel, be provided with heat exchange fin.This radiant type high-temperature heat-exchanging is simple in structure, modern design, and this heat exchanger by the parts of complexity, only is not to change for structure on the basis of existing technology, has just solved a difficult problem of the prior art; Cost is lower, and is safe and reliable, easy to operate; Heat transfer efficiency is high, and this heat exchanger can use under ultra-high temperature condition.
Need to prove; above-described embodiment only is preferred embodiment of the present utility model; do not limit protection domain of the present utility model; being equal to replacement or changing of making on said structure all falls into protection domain of the present utility model, and protection domain of the present utility model is as the criterion with claims.
Claims (8)
1. radiant type high-temperature heat-exchanging, comprise heat exchanger body and the shell that is arranged on this body exterior, it is characterized in that: described body comprises inner barrel and jacket cylinder, the bottom of described body is provided with the high-temperature medium import, the top of body is provided with the high-temperature medium outlet, one side of high-temperature medium import is provided with cryogenic media outlet, and a side of high-temperature medium outlet is provided with the cryogenic media import, and described high-temperature medium import department is provided with the carborundum thermal insulation layer of high thermal conductivity coefficient.
2. radiant type high-temperature heat-exchanging according to claim 1 is characterized in that: described body comprises central high-temperature medium passage and around the cold medium channel around it.
3. radiant type high-temperature heat-exchanging according to claim 1 and 2, it is characterized in that: described inner barrel is provided with expansion joint.
4. radiant type high-temperature heat-exchanging according to claim 1 and 2, it is characterized in that: shell is provided with expansion joint.
5. radiant type high-temperature heat-exchanging according to claim 2 is characterized in that: be provided with guide vane in the described central high-temperature medium passage.
6. it is characterized in that: be provided with heat exchange fin in the described cold medium channel according to claim 2 or 5 described radiant type high-temperature heat-exchangings.
7. radiant type high-temperature heat-exchanging according to claim 3, it is characterized in that: described expansion joint is single ripple or double wave or many ripples.
8. radiant type high-temperature heat-exchanging according to claim 4, it is characterized in that: described expansion joint is single ripple or double wave or many ripples.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249375 CN202648477U (en) | 2012-05-30 | 2012-05-30 | Radiation type high temperature heat-exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249375 CN202648477U (en) | 2012-05-30 | 2012-05-30 | Radiation type high temperature heat-exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202648477U true CN202648477U (en) | 2013-01-02 |
Family
ID=47417574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220249375 Expired - Lifetime CN202648477U (en) | 2012-05-30 | 2012-05-30 | Radiation type high temperature heat-exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202648477U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917631A (en) * | 2016-10-07 | 2018-04-17 | 丰田自动车株式会社 | Magnetic current body drive, magnetic fluid driving method and heated conveying method |
| CN111750723A (en) * | 2019-03-27 | 2020-10-09 | 日本碍子株式会社 | Heat exchanger |
-
2012
- 2012-05-30 CN CN 201220249375 patent/CN202648477U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917631A (en) * | 2016-10-07 | 2018-04-17 | 丰田自动车株式会社 | Magnetic current body drive, magnetic fluid driving method and heated conveying method |
| CN111750723A (en) * | 2019-03-27 | 2020-10-09 | 日本碍子株式会社 | Heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |