CN202709082U - Superheater device for waste incineration waste heat boiler for preventing high-temperature corrosion - Google Patents
Superheater device for waste incineration waste heat boiler for preventing high-temperature corrosion Download PDFInfo
- Publication number
- CN202709082U CN202709082U CN 201220378420 CN201220378420U CN202709082U CN 202709082 U CN202709082 U CN 202709082U CN 201220378420 CN201220378420 CN 201220378420 CN 201220378420 U CN201220378420 U CN 201220378420U CN 202709082 U CN202709082 U CN 202709082U
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- superheater
- temperature
- tube bank
- medium
- temperature superheater
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Abstract
The utility model belongs to the technical field of a boiler device, and provides a superheater device for a waste incineration waste heat boiler for preventing high-temperature corrosion. The problem to be solved is serious high-temperature corrosion of the superheater and ultra-short service life. The superheater device is formed by a high superheater, a middle superheater and a low superheater. The superheater device has the characteristics that a primary spray-type desuperheater is added between a low-temperature superheater and a medium-temperature superheater; a secondary spray-type desuperheater is added between the medium-temperature superheater and a high-temperature superheater; a low-temperature superheater pipe bundle, a medium-temperature superheater pipe bundle and a high-temperature superheater pipe bundle are orderly arranged inside a flue behind an evaporating heating surface from bottom to top, and the high-temperature superheater tube bundle is a down-stream manner, and the medium-temperature superheater tube bundle and the low-temperature superheater tube bundle are arranged in a reverse-flow manner. The temperature of the pipe wall of the superheater is effectively reduced, and the service life is prolonged.
Description
Technical field
The utility model belongs to the boiler plant technical field, is specifically related to a kind of refuse incineration exhaust-heating boiler superheater device that prevents high temperature corrosion.
Background technology
Owing to containing the chlorine-containing compounds such as waste plastics, bleached paper, sodium chloride in the rubbish, after burning, these chlorine-containing compounds produce chloride flue gas, under hot conditions, can produce corrosiveness to common metal.And the superheater of boiler generally has higher tube wall temperature, very easily by flue gas corrosion.At the refuse incineration exhaust-heating boiler of usefulness, maximum problem is that the high temperature corrosion of superheater is serious at present, and the life-span is extremely short.
Summary of the invention
The purpose of this utility model is to solve the problem that prior art exists, and a kind of refuse incineration exhaust-heating boiler superheater device that prevents high temperature corrosion is provided.
The utility model is to solve the problems of the technologies described above the technical scheme of taking to be:
A kind of refuse incineration exhaust-heating boiler is made of high, medium and low superheater with the superheater device that prevents high temperature corrosion; It is characterized in that: comprise low temperature superheater tube bank, one-level direct-contact desuperheater, the overheated import header of middle temperature, medium temperature overheater tube bank, secondary direct-contact desuperheater, hyperthermia and superheating import header, high temperature superheater tube bank and superheated steam tube connector; The tube bank of described low temperature superheater, medium temperature overheater tube bank and high temperature superheater tube bank are arranged in the flue after the evaporating heating surface from the bottom to top successively, and high temperature superheater tube bank following current arranges, in, low temperature superheater tube bank counter-flow arrangement; Described one-level direct-contact desuperheater is arranged between low temperature superheater tube bank and the overheated import header of middle temperature; Described secondary direct-contact desuperheater is arranged between medium temperature overheater tube bank and the hyperthermia and superheating import header.
The present invention compared with prior art has following beneficial effect:
1, the utility model is provided with the two-stage direct-contact desuperheater, in boiler operatiopn, can regulate the wall temperature of superheater tube in safe range;
2, the utility model high temperature superheater tube bank following current is arranged, makes the highest tube outer wall flue-gas temperature of vapor (steam) temperature minimum, to reduce tube wall temperature.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1-hyperthermia and superheating import header; 2-superheated steam tube connector; 3-secondary direct-contact desuperheater; The tube bank of 4-medium temperature overheater; The overheated import header of 5-middle temperature; 6-one-level direct-contact desuperheater; The tube bank of 7-low temperature superheater; The tube bank of 8-high temperature superheater; 9-outlet header.
The specific embodiment
As shown in Figure 1, a kind of refuse incineration exhaust-heating boiler superheater device that prevents high temperature corrosion, consisted of by high, medium and low superheater, comprise low temperature superheater tube bank 7, one-level direct-contact desuperheater 6, the overheated import header 5 of middle temperature, medium temperature overheater tube bank 4, secondary direct-contact desuperheater 3, hyperthermia and superheating import header 1, high temperature superheater tube bank 8 and superheated steam tube connector 2; Described low temperature superheater tube bank 7, medium temperature overheater tube bank 4 and high temperature superheater tube bank 8 are arranged in the flue after the evaporating heating surface from the bottom to top successively, and high temperature superheater restrains 8 following currents and arrange, in, low temperature superheater tube bank counter-flow arrangement; Described one-level direct-contact desuperheater 6 is arranged between low temperature superheater tube bank 7 and the medium temperature overheater import header 5; Described secondary direct-contact desuperheater 3 is arranged between medium temperature overheater tube bank 4 and the hyperthermia and superheating import header 1.
Using method and operation principle:
The utility model is arranged at after the evaporating heating surface, and is as follows from the saturated vapor running route of drum: the header of the header of the two groups of low temperature superheater tube bank 7 → one-level direct-contact desuperheaters 6 → superheated steam tube connector 2 → overheated import header of middle temperature 5 → medium temperature overheater tube bank 4 → secondary direct-contact desuperheater 3 → superheated steam tube connector 2 → high temperature superheater import header 1 → high temperature superheater tube bank 8 → outlet header 9; When superheater vapor (steam) temperature overtemperature, one-level direct-contact desuperheater or secondary direct-contact desuperheater carry out spray cooling, make the wall temperature of superheater tube in safe range.
Claims (1)
1. a refuse incineration exhaust-heating boiler is with the superheater device that prevents high temperature corrosion, consisted of by high, medium and low superheater, it is characterized in that: comprise low temperature superheater tube bank (7), one-level direct-contact desuperheater (6), the overheated import header of middle temperature (5), medium temperature overheater tube bank (4), secondary direct-contact desuperheater (3), hyperthermia and superheating import header (1), high temperature superheater tube bank (8) and superheated steam tube connector (2); Described low temperature superheater tube bank (7), medium temperature overheater tube bank (4) and high temperature superheater tube bank (8) are arranged in the flue from the bottom to top successively, and high temperature superheater tube bank (8) following current arranges, in, low temperature superheater tube bank counter-flow arrangement; Described one-level direct-contact desuperheater (6) is arranged between low temperature superheater tube bank (7) and the overheated import header of middle temperature (5); Described secondary direct-contact desuperheater (3) is arranged between medium temperature overheater tube bank (4) and the hyperthermia and superheating import header (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220378420 CN202709082U (en) | 2012-07-31 | 2012-07-31 | Superheater device for waste incineration waste heat boiler for preventing high-temperature corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220378420 CN202709082U (en) | 2012-07-31 | 2012-07-31 | Superheater device for waste incineration waste heat boiler for preventing high-temperature corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709082U true CN202709082U (en) | 2013-01-30 |
Family
ID=47589379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220378420 Expired - Lifetime CN202709082U (en) | 2012-07-31 | 2012-07-31 | Superheater device for waste incineration waste heat boiler for preventing high-temperature corrosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202709082U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255267A (en) * | 2017-06-16 | 2017-10-17 | 青岛骏鹏石化设备制造有限公司 | A kind of low pressure superhigh temperature superheated steam boiler |
| CN110500572A (en) * | 2019-09-02 | 2019-11-26 | 南通万达锅炉有限公司 | A kind of modular condensate heater |
-
2012
- 2012-07-31 CN CN 201220378420 patent/CN202709082U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255267A (en) * | 2017-06-16 | 2017-10-17 | 青岛骏鹏石化设备制造有限公司 | A kind of low pressure superhigh temperature superheated steam boiler |
| CN110500572A (en) * | 2019-09-02 | 2019-11-26 | 南通万达锅炉有限公司 | A kind of modular condensate heater |
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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: 20130130 |