CS256727B1 - Device with outside or inside heat exchanger for temperature regulation of fluidization layer's dipped surface - Google Patents
Device with outside or inside heat exchanger for temperature regulation of fluidization layer's dipped surface Download PDFInfo
- Publication number
- CS256727B1 CS256727B1 CS858144A CS814485A CS256727B1 CS 256727 B1 CS256727 B1 CS 256727B1 CS 858144 A CS858144 A CS 858144A CS 814485 A CS814485 A CS 814485A CS 256727 B1 CS256727 B1 CS 256727B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- heat exchanger
- internal heat
- external
- fluidized bed
- outside
- Prior art date
Links
- 238000005243 fluidization Methods 0.000 title 1
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Description
Podstata riešenia spočívá v tom, že za vstupnou komorou smyčiek ponorenej výhřevné] plochy je zaradený vonkajší alebo vnútorný výmenník tepla.The essence of the solution is that an external or internal heat exchanger is arranged downstream of the inlet chamber of the submerged heating surface.
Riešenie je možné využit pri navrhovaní ponořených výhřevných ploch fluidných ohnísk s jednostupňovým spalováním.The solution can be used in the design of submerged heating surfaces of fluidized beds with single-stage combustion.
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Vynález sa týká zariadenia na reguláciu teploty fluidnej vrstvy ponořenou plochou s vonkajším alebo vnútorným výmenníkom tepla.The invention relates to a device for controlling the temperature of a fluidized bed by means of a submerged surface with an external or internal heat exchanger.
Pri aplikácii fluidnej techniky na bezškvárové spalovanie tuhých paliv musí byť pri jednostupňovom spalovaní zaistené udržiavanie teploty fluidnej vrstvy na úrovni cca 850 °C v širokom rozsahu výkonu fluidného ohniska. Deje sa to schladzovaním fluidnej vrstvy ponořenou výhřevnou plochou.When applying fluid technology to the seamless combustion of solid fuels, the single-stage combustion must ensure that the fluidized bed temperature is maintained at about 850 ° C over a wide range of fluidized bed power. This is done by cooling the fluidized bed with the submerged heating surface.
Vzhladom na to, že fluidná vrstva je miestom najvyššej teploty ohrievacieho média, při požiadavke vysokého prehriatia páry v kotle je potřebné do fluidnej vrstvy umiestniť okrem Iných výhřevných plóch aj výhřevné plochy prehrievača páry. Takéto riešenie prináša so sebou niektoré problémy vyplývajúce z rozdielnej konštrukcie výhřevných ploch a z toho, že sú iné požiadavky na reguláciu teploty fluidnej vrstvy a iné na reguláciu teploty prehriatej páry.Due to the fact that the fluidized bed is the place of the highest temperature of the heating medium, it is necessary to place the heating surfaces of the steam superheater in the fluidized bed in addition to other heating surfaces in case of high steam overheating in the boiler. Such a solution entails some problems due to the different design of the heating surfaces and the different requirements for controlling the temperature of the fluidized bed and other for controlling the temperature of the superheated steam.
Uvedené problémy odstraňuje riešenie podlá vynálezu, ktorého podstata spočívá v tom, že za vstupnou komorou smyčiek ponornej výhrevnej plochy je zaradený vonkajší, alebo vnútorný výmenník tepla.The above-mentioned problems are eliminated by the solution according to the invention, which is based on the fact that an external or internal heat exchanger is arranged downstream of the inlet chamber of the immersion heating surface loops.
Výhodou takéhoto riešenia je, že změna teplotových pomerov pracovného média, určeného na chladenie fluidnej vrstvy nemá vplyv na udržiavanie požadovanej hodnoty teploty fluidnej vrstvy.The advantage of such a solution is that changing the temperature conditions of the working fluid to cool the fluidized bed has no effect on maintaining the desired fluidized bed temperature.
Na pripojenom obrázku 1 je znázorněné zariadenie s vonkajším výmenníkom tepla, kde vo fluidnej vrstvě 7 sú ponořené smyčky 6 výhrevnej plochy. Za vstupnou komorou 5 je radený vonkajší výmenník 2 tepla, smyčky 6 ponorenej výhrevnej plochy a výstupná komora 1. Za vstupom 3 do vonkajšleho výmenníka tepla je radená regulačná •armatúra 4, vonkajší výmenník tepla 2 a výstup 8 z vonkajšieho výmenníka tepla.1 shows a device with an external heat exchanger, in which the loops 6 of the heating surface are immersed in the fluidized bed 7. Downstream of the inlet chamber 5 is an external heat exchanger 2, a submerged heating surface loop 6 and an outlet chamber 1. Downstream of the inlet 3 to the external heat exchanger is a control fitting 4, an external heat exchanger 2 and an outlet 8 from the external heat exchanger.
Na priloženom obr. 2 je znázorněné zariadenie s vnútorným výmenníkom tepla, kde vo fluidnej vrstvě 7 sú ponořené smyčky 8 výhrevnej plochy. Za vstupnou komorou 5 je radený vnútorný výmenník 2 tepla, smyčky 6 ponorenej výhrevnej plochy a výstupná komora 1. Za vstupom 3 do vnútorného výmenníka tepla je radená regulačná armatúra 4, vnútorný výmenník tepla 2 a výstup 8 z vnútorného výmenníka tepla.FIG. 2 shows a device with an internal heat exchanger, in which the heating surface loops 8 are immersed in the fluidized bed 7. Downstream of the inlet chamber 5 is an internal heat exchanger 2, submerged heating surface loops 6 and an outlet chamber 1. Downstream of the inlet 3 to the internal heat exchanger is a control fitting 4, an internal heat exchanger 2 and an outlet 8 from the internal heat exchanger.
Vynález je možné využiť pri navrhovaní ponořených výhřevných ploch fluldných ohnísk parných kotlov s jednostupňovým spalováním.The invention can be used in the design of submerged heating surfaces of fluld fires of single-stage steam boilers.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS858144A CS256727B1 (en) | 1985-11-13 | 1985-11-13 | Device with outside or inside heat exchanger for temperature regulation of fluidization layer's dipped surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS858144A CS256727B1 (en) | 1985-11-13 | 1985-11-13 | Device with outside or inside heat exchanger for temperature regulation of fluidization layer's dipped surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS814485A1 CS814485A1 (en) | 1987-09-17 |
| CS256727B1 true CS256727B1 (en) | 1988-04-15 |
Family
ID=5431628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS858144A CS256727B1 (en) | 1985-11-13 | 1985-11-13 | Device with outside or inside heat exchanger for temperature regulation of fluidization layer's dipped surface |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS256727B1 (en) |
-
1985
- 1985-11-13 CS CS858144A patent/CS256727B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS814485A1 (en) | 1987-09-17 |
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