CN214949072U

CN214949072U - Waste incineration exhaust-heat boiler

Info

Publication number: CN214949072U
Application number: CN202120631625.3U
Authority: CN
Inventors: 洪代清
Original assignee: Xuancheng Dongsheng Machinery Co ltd
Current assignee: Xuancheng Dongsheng Machinery Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-11-30
Anticipated expiration: 2031-03-29

Abstract

The utility model discloses a waste incineration exhaust-heat boiler, left flue and right flue that upper portion is linked together are separated into through the baffle to its flue, movable mounting has the flue gas guide plate in the lower extreme of left flue and right flue, third over heater and the second over heater that distributes according to upper and lower structure are installed to the interval in the left flue, evaporimeter and the first over heater that distribute according to upper and lower structure are installed to the interval in the right flue, all install the flue gas spoiler between third over heater and the second over heater and between evaporimeter and the first over heater, a plurality of economizers are installed to the hypomere of discharge flue. The utility model adopts a parallel double flue structure, three superheaters are arranged in the flue, and the superheaters are connected in parallel and in series with the steam drum and the steam output pipeline at the same time, and 1-3 superheaters can be selected to supply steam independently or in parallel; meanwhile, the smoke guide plate and the smoke spoiler are arranged to guide and disturb smoke, so that the utilization efficiency of waste heat of the smoke is improved, and the corrosion to a heat exchange pipe system is reduced.

Description

Waste incineration exhaust-heat boiler

Technical Field

The utility model relates to a msw incineration exhaust-heat boiler belongs to the energy-conserving boiler field.

Background

The waste incineration waste heat boiler is an energy-saving boiler which utilizes high-temperature flue gas generated by waste incineration to heat water so as to generate hot water or steam. The existing waste heat boiler mainly has a vertical structure and a horizontal structure, the waste incineration waste heat boiler is generally a large boiler, the vertical height is generally higher, the requirements on boiler steel structure and construction technology are high, and the horizontal type waste heat boiler occupies a large area and is not enough. Simultaneously waste incineration exhaust-heat boiler utilizes the high temperature flue gas that waste incineration produced, compares with other fuels such as coal-fired, and waste incineration's flue gas's heat and smoke volume are not stable enough, can influence waste heat transfer effect, and the smoke and dust in the flue gas still contains great corrosivity simultaneously, and is great to the heat transfer piping corrosivity of boiler, exists not enough.

SUMMERY OF THE UTILITY MODEL

To the above not enough, the utility model provides a waste incineration exhaust-heat boiler, the utility model discloses a technical scheme as follows:

a waste incineration exhaust-heat boiler comprises a steel framework, a flue arranged on the steel framework, a stair arranged on the steel framework and an operation platform; the top of the flue is provided with a steam pocket, a steam output pipeline and a discharge flue; the flue is divided into a left flue and a right flue by a partition plate, the upper parts of the left flue and the right flue are communicated, flue dust collecting hoppers are arranged at the bottom ends of the left flue and the right flue, and flue gas inlets are formed in the side walls of the flue dust collecting hoppers; a smoke guide plate is movably arranged in the lower ends of the left flue and the right flue; a third superheater and a second superheater which are distributed in an up-and-down structure are installed in the left flue at intervals, and an evaporator and a first superheater which are distributed in an up-and-down structure are installed in the right flue at intervals; flue gas spoilers are arranged between the third superheater and the second superheater and between the evaporator and the first superheater; the lower section of the discharge flue is provided with a plurality of coal economizers, the bottom end of the discharge flue is provided with a discharge flue dust collecting hopper, and the side wall of the discharge flue dust collecting hopper is provided with a flue gas outlet.

The economizer and the evaporator are both communicated with the steam drum through a pipe system; two ends of the first superheater, the third superheater and the second superheater are communicated with the steam drum and the steam output pipeline through connecting pipelines, and the first superheater, the third superheater and the second superheater are communicated with each other through connecting pipelines; and valves are arranged on all connecting pipelines among the first superheater, the third superheater, the second superheater, the steam drum and the steam output pipeline.

Furthermore, the flue gas guide plate is provided with uniformly distributed guide holes, and the flue gas guide plate is made of porous ceramic material.

Further, the flue gas spoiler includes frame and interval installation spoiler on the frame, and the both ends of spoiler are equipped with the pivot, and pivot movable mounting is in the shaft hole on the frame.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses a flue about the block form that is linked together, it is vertical to be compared with the conventionality has the advantage that highly hang down, the construction is easy, compares with the conventionality is horizontal to have the advantage that area is little. The utility model adopts three superheaters, and three superheaters, a steam pocket and a steam output pipeline are mutually communicated, and three superheaters can simultaneously or optionally one to two superheaters provide steam for the steam output pipeline; when the heat or/and smoke quantity of the smoke is relatively insufficient, three or any two superheaters can be connected in parallel to provide steam for the steam output pipeline. The utility model discloses a porous ceramic material's flue gas guide plate carries out the water conservancy diversion to the import flue gas, can make the more even flue that passes through of flue gas, utilizes porous ceramic material's characteristic to adsorb the smoke and dust in the flue gas simultaneously and blocks, can also reduce the corruption to the heat transfer piping. The utility model discloses a rotatable flue gas spoiler of spoiler carries out the vortex to the flue gas, and the extension flue gas stops and heat exchange time in the flue, can improve flue gas waste heat utilization efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the flue gas deflector of the present invention;

FIG. 3 is a schematic view of the structure of the flue gas spoiler of the present invention;

fig. 4 is a schematic view of the connection structure between the superheater and the steam drum and the steam output pipeline of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Example (b):

referring to fig. 1-4, a waste incineration exhaust-heat boiler comprises a steel framework 1, a flue installed on the steel framework 1, a stair (not shown) and an operation platform (not shown) installed on the steel framework; the top of the flue is provided with a steam pocket 2, a steam output pipeline 3 and a discharge flue 4; the flue is divided into a left flue 5 and a right flue 6 with the upper parts communicated through a partition plate, the bottom ends of the left flue 5 and the right flue 6 are both provided with a flue dust collecting hopper 7, and the side wall of the flue dust collecting hopper 7 is provided with a flue gas inlet 8; a flue gas guide plate 9 is movably arranged in the lower ends of the left flue 5 and the right flue 6; a third superheater 10 and a second superheater 11 which are distributed in an up-and-down structure are installed in the left flue 5 at intervals, and an evaporator 13 and a first superheater 12 which are distributed in an up-and-down structure are installed in the right flue 6 at intervals; flue gas spoilers 14 are arranged between the third superheater 10 and the second superheater 11 and between the evaporator 13 and the first superheater 12; a plurality of coal economizers 15 are installed on the lower section of the discharge flue 4, a discharge flue dust collecting hopper 16 is arranged at the bottom end of the discharge flue 4, and a flue gas outlet 17 is formed in the side wall of the discharge flue dust collecting hopper 16.

The economizer 15 and the evaporator 13 are both communicated with the steam drum 2 through a pipe system; two ends of the first superheater 12, the third superheater 10 and the second superheater 11 are communicated with the steam drum 2 and the steam output pipeline 3 through connecting pipelines, and the first superheater 12, the third superheater 10 and the second superheater 11 are communicated with each other through connecting pipelines; valves are arranged on all connecting pipelines among the first superheater 12, the third superheater 10, the second superheater 11, the steam drum 2 and the steam output pipeline 3.

Furthermore, the flue gas guide plate 9 is provided with uniformly distributed guide holes 90, and the flue gas guide plate 9 is made of porous ceramic material.

Further, the smoke spoiler 14 comprises a frame 141 and spoilers 142 installed on the frame 141 at intervals, wherein two ends of each spoiler 142 are provided with a rotating shaft, and the rotating shafts are movably installed in shaft holes on the frame 141.

The utility model discloses a flue about the block form that is linked together, it is vertical to be compared with the conventionality has the advantage that highly hang down, the construction is easy, compares with the conventionality is horizontal to have the advantage that area is little. The utility model adopts three superheaters, and three superheaters, a steam pocket and a steam output pipeline are mutually communicated, and three superheaters can simultaneously or optionally one to two superheaters provide steam for the steam output pipeline; when the heat or/and smoke quantity of the smoke is relatively insufficient, three or any two superheaters can be connected in parallel to provide steam for the steam output pipeline. The utility model discloses a porous ceramic material's flue gas guide plate carries out the water conservancy diversion to the import flue gas, can make the more even flue that passes through of flue gas, utilizes porous ceramic material's characteristic to adsorb the smoke and dust in the flue gas simultaneously and blocks, can also reduce the corruption to the heat transfer piping. The utility model discloses a rotatable flue gas spoiler of spoiler carries out the vortex to the flue gas, and the extension flue gas stops and heat exchange time in the flue, can improve flue gas waste heat utilization efficiency.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. The utility model provides a waste incineration exhaust-heat boiler which characterized in that: a waste incineration exhaust-heat boiler comprises a steel framework and a flue arranged on the steel framework; the top of the flue is provided with a steam pocket, a steam output pipeline and a discharge flue; the flue is divided into a left flue and a right flue by a partition plate, the upper parts of the left flue and the right flue are communicated, flue dust collecting hoppers are arranged at the bottom ends of the left flue and the right flue, and flue gas inlets are formed in the flue dust collecting hoppers; a smoke guide plate is movably arranged in the lower ends of the left flue and the right flue; a third superheater and a second superheater which are distributed in an up-and-down structure are installed in the left flue at intervals, and an evaporator and a first superheater which are distributed in an up-and-down structure are installed in the right flue at intervals; flue gas spoilers are arranged between the third superheater and the second superheater and between the evaporator and the first superheater; a plurality of coal economizers are installed on the lower section of the discharge flue, a discharge flue dust collecting hopper is arranged at the bottom end of the discharge flue, and a flue gas outlet is formed in the discharge flue dust collecting hopper; the economizer and the evaporator are both communicated with the steam drum through a pipe system; two ends of the first superheater, the third superheater and the second superheater are communicated with the steam drum and the steam output pipeline through connecting pipelines, and the first superheater, the third superheater and the second superheater are communicated with each other through connecting pipelines; and valves are arranged on all connecting pipelines among the first superheater, the third superheater, the second superheater, the steam drum and the steam output pipeline.

2. The waste incineration waste heat boiler according to claim 1, characterized in that: the flue gas guide plate is provided with uniformly distributed guide holes and is made of porous ceramic materials.

3. The waste incineration waste heat boiler according to claim 1, characterized in that: the flue gas spoiler comprises a frame and spoilers arranged on the frame at intervals, rotating shafts are arranged at two ends of each spoiler, and the rotating shafts are movably arranged in shaft holes in the frame.

4. The waste incineration waste heat boiler according to claim 1, characterized in that: and the steel framework is also provided with stairs and an operation platform.