CN206037008U

CN206037008U - Gas boiler

Info

Publication number: CN206037008U
Application number: CN201620981810.4U
Authority: CN
Inventors: 孙建涛; 潘宇峰; 徐传香
Original assignee: Jiangsu Taihu Boiler Co Ltd
Current assignee: Jiangsu Taihu Boiler Co Ltd
Priority date: 2016-08-30
Filing date: 2016-08-30
Publication date: 2017-03-22
Anticipated expiration: 2026-08-30

Abstract

The utility model provides a gas boiler, it can solve direct emission of exhaust steam that current industrial production produced and the environmental pollution who causes, the problem of the extravagant loss of heat energy. It includes boiler body, drum, combustor, and the last combustor of installing of boiler body is equipped with combustion chamber and hot spot flue in the boiler body, and the combustor is located the imported side of combustion chamber is provided with the over heater in the hot spot flue, the outlet side and the hot spot flue UNICOM of combustion chamber, and denitrification facility is connected through connecting the flue to the exit end of hot spot flue, and denitrification facility connects energy -saving appliance, its characterized in that: it still includes exhaust steam import collection case, and the exhaust steam import is equipped with the exhaust steam entry on collecting the case, and the drum passes through saturated steam delivery line with exhaust steam import collection case to be connected, and the exhaust steam import is collected the case and is connected with superheater tube, and main steam outlet collection case is connected to the over heater.

Description

A kind of gas fired-boiler

Technical field

This utility model is related to field of boilers, specially a kind of gas fired-boiler.

Background technology

The exhaust steam for generally producing in the industrial production can direct out discharge so as to cause environmental pollution, and exhaust steam itself is past Heat-energy losses can be caused to waste toward directly be able to discharging containing larger heat energy, but the temperature of exhaust steam itself is not enough to again by remaining Heat boiler directly carries out UTILIZATION OF VESIDUAL HEAT IN, thus the exhaust steam produced in how making full use of commercial production become one it is urgently to be resolved hurrily Problem.

Utility model content

For the problems referred to above, this utility model provides a kind of gas fired-boiler, and which can solve what existing commercial production was produced Exhaust steam straight run in put and cause environmental pollution, thermal waste loss problem.

Its technical scheme is, a kind of gas fired-boiler, and which includes boiler body, drum, burner, pacifies on the boiler body Equipped with burner, combustor and overheated zone flue in the boiler body, is provided with, the burner is located at entering for the combustor Mouth side, is provided with superheater, the outlet side of the combustor and the overheated zone flue UNICOM, institute in the overheated zone flue The port of export for stating overheated zone flue connects denitrification apparatus by connecting flue, and the denitrification apparatus connect energy-saving appliance, and its feature exists In：Which also includes exhaust steam import header, and the exhaust steam import header is provided with exhaust steam entrance, the drum and the exhaust steam import Header is connected by saturated vapor output pipe, and the exhaust steam import header is connected with superheater tube, the superheater connection master Steam (vapor) outlet header.

Further, the front inner wall of the boiler body, rear side inwall are respectively equipped with fin panel casing, the boiler sheet The fin panel casing that extends laterally is additionally provided with vivo and the inner space of the boiler body is divided into position by the fin panel casing Combustor in rear side and the overheated zone flue positioned at front side.

Further, the superheater is provided with three groups, and superheater described in three groups is uniformly arranged on the overheated zone flue It is interior.

Further, direct-contact desuperheater is provided between two neighboring superheater.

The beneficial effects of the utility model are：Which passes through exhaust steam import header by the external exhaust steam collected and from drum The saturated vapor of interior extraction is heated as superheated steam by superheater together, and on the one hand which take full advantage of external exhaust steam, avoid Exhaust steam straight runs in the problem for putting that the environmental pollution that brings and heat energy loss are wasted, on the other hand also meeting heating equipment to overheated The demand of saving；Additionally, its superheater employs three-level arrangement form, can realize that segmentation is absorbed heat step by step, it is ensured that steam (vapor) outlet Vapor (steam) temperature it is stable；And two-stage direct-contact desuperheater is which employs, can realize according to external exhaust steam flow adjusting water spray Amount, is further ensured that stablizing for outlet steam temperature.

Description of the drawings

Fig. 1 is a kind of overlooking the structure diagram of gas fired-boiler of this utility model；

A direction views of the Fig. 2 for Fig. 1；

B direction views of the Fig. 3 for Fig. 1.

Reference：1- drums, 2- burners, 3- steel frame columns, 4- superheaters, 5- direct-contact desuperheaters, 6- superheaters, 7- Direct-contact desuperheater, 8- superheaters, 9- platform staircases, 10- main-steam outlet headers, 11-SCR denitrification apparatus, 12- energy-saving appliances, 13- fin panel casings, 14- exhaust steam import headers, 15- connection flues, 16- boiler bodies, 17- combustor, 18- overheated zones cigarette Road, 19- fin panel casings, 20- fin panel casings, 21- exhaust steam entrances, 22- saturated vapor output pipes.

Specific embodiment

See Fig. 1, Fig. 2 and Fig. 3, a kind of gas fired-boiler of this utility model, which includes boiler body 16, drum 1, burner 2, Burner 2 is installed on boiler body 16, in boiler body 16, combustor 17 and overheated zone flue 18 is provided with, boiler body 16 Front inner wall, rear side inwall are respectively equipped with fin panel casing 19,20, are additionally provided with the film-type water-cooling for extending laterally in boiler body 16 The wall 13 and fin panel casing 13 is divided into the inner space of boiler body positioned at the combustor 17 of rear side and positioned at front side Overheated zone flue 18, burner 2 be located in the import side of combustor 17, overheated zone flue 18 be provided with three groups of superheaters 4,6, 8, three groups of superheaters 4,6,8 are uniformly arranged in overheated zone flue 18, outlet side and 18 UNICOM of overheated zone flue of combustor 17, The port of export of overheated zone flue 18 connects SCR denitration device 11, the connection energy-saving appliance of SCR denitration device 11 by connecting flue 15 12；Which also includes exhaust steam import header 14, and exhaust steam import header 14 is provided with exhaust steam entrance 21, drum 1 and exhaust steam import header 14 are connected by saturated vapor output pipe 22, and exhaust steam import header 14 is connected with superheater tube, and superheater connection main steam goes out Mouth header；Direct-contact desuperheater 5 is provided between superheater 4,6, is provided with direct-contact desuperheater 7 between superheater 6 and 8.

When gas fired-boiler of the present utility model works：

Fume side, which passes through burner 2 will combustion in the combustor 17 that fin panel casing 30 and fin panel casing 13 are constituted Material burns, and high-temperature flue gas wash away superheater 8, superheater 6, superheater 4 successively, and Jing connection flues 15 introduce denitrification apparatus 11 to be carried out Preliminary treatment, then discharges after 12 further absorbing and cooling temperature of energy-saving appliance afterwards, and enters smoke stack emission；

Steam side workflow please be supplement, and drum is sent into after the device heating of feedwater warp knuckle energy, by convection bank and water-cooling wall Saturated vapor is produced after heating Deng heating surface, the saturated vapor and external exhaust steam in drum enters superheater together, through hot device Become superheated steam after heating, the heating equipment of user is supplied to by the stop valve in superheater main-steam outlet header.

Claims

1. a kind of gas fired-boiler, which includes boiler body, drum, burner, is provided with burner on the boiler body, described Combustor and overheated zone flue is provided with boiler body, and the burner is located at the import side of the combustor, described overheated Superheater, the outlet side of the combustor and the overheated zone flue UNICOM is provided with area's flue, the overheated zone flue The port of export connects denitrification apparatus by connecting flue, and the denitrification apparatus connect energy-saving appliance, it is characterised in that：Which also includes exhaust steam Import header, the exhaust steam import header are provided with exhaust steam entrance, and the drum is steamed by saturation with the exhaust steam import header Vapour output pipe connects, and the exhaust steam import header is connected with superheater tube, and the superheater connects main-steam outlet header.

2. a kind of gas fired-boiler according to claim 1, it is characterised in that：The front inner wall of the boiler body, rear side Inwall is respectively equipped with fin panel casing, is additionally provided with the fin panel casing and the fin panel casing for extending laterally in the boiler body The inner space of the boiler body is divided into into the combustor positioned at rear side and the overheated zone flue positioned at front side.

3. a kind of gas fired-boiler according to claim 2, it is characterised in that：The superheater is provided with three groups, three groups of institutes State superheater to be uniformly arranged in the overheated zone flue.

4. a kind of gas fired-boiler according to claim 3, it is characterised in that：Spray is provided between two neighboring superheater Water attemperator.