CN211781935U

CN211781935U - Inclined transverse pipe type smoke and steam heat exchange water-cooling sleeve type biomass boiler

Info

Publication number: CN211781935U
Application number: CN202020152318.2U
Authority: CN
Inventors: 黄新章; 王启民; 张小辉; 姜波; 栾学会
Original assignee: Shenyang Institute of Engineering
Current assignee: Shenyang Institute of Engineering
Priority date: 2020-02-05
Filing date: 2020-02-05
Publication date: 2020-10-27
Anticipated expiration: 2030-02-05

Abstract

The utility model belongs to the boiler preparation field especially relates to a horizontal tubular cigarette of slope, vapour heat transfer water-cooling bushing type biomass boiler, and this boiler includes: the boiler body, the oven of boiler body is cavity sandwich structure, the downside of boiler body sets up first water inlet, the side of going up of boiler body sets up first delivery port, through first water inlet with first water tank is connected to first delivery port, boiler body is inside to be provided with the flue baffle and to set the boiler body inside into combustion area and flue two parts, the flue baffle is cavity sandwich structure, and the cavity sandwich structure at the flue baffle communicates with each other with the cavity sandwich structure of oven. The heat of absorption flue gas that can be better reduces the heat loss of discharging fume of boiler, improves the lifting speed of the temperature of boiler feedwater, has reduced the temperature that the boiler discharged fume, and then reduces the heat loss of discharging fume, has improved the whole thermal efficiency of boiler.

Description

Inclined transverse pipe type smoke and steam heat exchange water-cooling sleeve type biomass boiler

Technical Field

The utility model belongs to the boiler preparation field especially relates to a horizontal tubular cigarette of slope, vapour heat transfer water-cooling jacket tubular biomass boiler.

Background

Besides the easy carbon monoxide poisoning and the easy combustible gas explosion of the current biomass boilers, the boiler thermal efficiency of the civil biomass particle burning small boiler is very low. Most boilers only consider the combustion effect and combustion mode of the boiler on fuel, but the attention on the heat utilization rate of the boiler is insufficient, and the overall boiler efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a slope horizontal tube formula cigarette, vapour heat transfer water-cooling bushing type biomass boiler is provided, the problem of whole boiler inefficiency is solved.

The utility model discloses a realize like this, a slope horizontal tubular cigarette, vapour heat transfer water-cooling bushing type biomass boiler, this boiler includes: the boiler body, the oven of boiler body is cavity sandwich structure, the downside of boiler body sets up first water inlet, the side of going up of boiler body sets up first delivery port, through first water inlet with first water tank is connected to first delivery port, boiler body is inside to be provided with the flue baffle and to set the boiler body inside into combustion area and flue two parts, the flue baffle is cavity sandwich structure, and the cavity sandwich structure at the flue baffle communicates with each other with the cavity sandwich structure of oven.

Furthermore, three rows of first heat exchange tubes which are arranged in a staggered mode are arranged in the upper space in the boiler body, the inner wall of the boiler transversely penetrates through the first heat exchange tubes in an inclined mode, and the upper flue position of the boiler body is connected with the hollow interlayer of the boiler body.

Further, the inclination angle of the first heat exchange tube is 15 to 30 degrees.

Further, the first heat exchange tube and both ends of the hollow interlayer have a plurality of nozzles disposed therein.

Furthermore, a plurality of parallel smoke tubes and a plurality of parallel second heat exchange tubes are arranged in the flue, and the second heat exchange tubes are connected with a second water tank through a second water inlet and a second water outlet.

Furthermore, a plurality of vertical and parallel third heat exchange tubes are arranged on the inner side wall of the combustion area, and the third heat exchange tubes are connected with a third water tank through a third water outlet and a third water inlet.

Further, the furnace wall of the boiler body shares a water outlet and a water inlet for a plurality of pipelines.

Compared with the prior art, the utility model, beneficial effect lies in: the boiler adopts an inclined horizontal pipe type smoke and steam water cooling sleeve, namely, an interlayer is designed on the outer surface layer of the boiler, water is filled in the interlayer, and the interlayer is communicated with a water inlet tank and a water return tank of a heating system of the boiler. The interlayer sleeve can effectively absorb heat radiation of the boiler, reduce heat radiation loss of the boiler, reduce the problem of the surface of the boiler and prevent scalding. Meanwhile, three rows of heat exchange tubes which are arranged in a staggered mode are arranged at the upper part of the boiler, the heat exchange tubes transversely penetrate the boiler in a 15-30-degree inclined mode, an interlayer of the boiler is connected at the position of a flue at the upper part of the boiler, water can flow between the inner part of each tube and the interlayer of the boiler, therefore, when smoke passes through the position, the smoke can directly heat the water in the tubes, the water is gasified after being heated, the inclined tubes can ensure that the gas is discharged from the tubes to enter a water tank of the boiler, the heat of the smoke can be better absorbed, the smoke exhaust heat loss of the boiler is reduced, the rising speed of the water supply temperature of the boiler is increased, the smoke exhaust temperature of the boiler is reduced, the smoke exhaust heat loss is reduced, and the.

Drawings

Fig. 1 is a schematic structural diagram of an apparatus provided in an embodiment of the present invention;

fig. 2 is a schematic diagram of an internal pipeline structure of a boiler with a side wall unfolded according to an embodiment of the present invention.

Fig. 3 is a schematic side view of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, an inclined horizontal tube type flue gas and steam heat exchange water-cooling sleeve type biomass boiler comprises: boiler body 1, boiler body's oven is cavity sandwich structure, boiler body's downside sets up first water inlet 7, boiler body's the side of going up sets up first delivery port 6, through first water inlet 7 with first delivery port 6 is connected first water tank, boiler body is inside to be provided with flue baffle 5 and sets combustion area and flue two parts with boiler body is inside, the flue baffle is cavity sandwich structure, and the cavity intermediate layer at the flue baffle communicates with each other with the cavity sandwich structure of oven. The outer surface layer of the boiler is provided with an interlayer, water is filled in the interlayer, and the interlayer is communicated with a water inlet tank body and a water return tank body of a heating system of the boiler. The interlayer sleeve can effectively absorb heat radiation of the boiler, reduce heat radiation loss of the boiler, reduce the problem of the surface of the boiler and prevent scalding.

Referring to fig. 2, the wall of the boiler body 1 is a plurality of hollow pipes which share one water outlet and one water inlet.

Referring to fig. 1, three rows of first heat exchange tubes 2 are arranged in a staggered manner in an upper space inside a boiler body 1, the first heat exchange tubes 2 obliquely cross the inner wall of the boiler, and are connected with a hollow interlayer 4 of the boiler body at a flue position on the upper part of the boiler body. Preferably, the first heat exchange tubes are inclined at an angle of 15 to 30 degrees. The first heat exchange tubes are arranged in three rows in staggered arrangement, water can flow between the first heat exchange tubes and the boiler interlayer, so that when smoke passes through the first heat exchange tubes, the smoke can directly heat the water in the first heat exchange tubes, the water is gasified after being heated, and the inclined tubes can ensure that the gas is discharged out of the first heat exchange tubes and enters the water tank of the boiler. Preferably, the first heat exchanger tubes are provided with a plurality of nozzles 9 at each end of the hollow sandwich in order to provide a velocity of the gas entering the sandwich in the furnace wall, thereby accelerating the velocity of the water flow entering the sandwich in the furnace wall at a high velocity.

In order to further utilize the waste heat, a smoke outlet 12 is arranged on the side surface of the flue close to the bottom, an exhaust fan can be arranged at the smoke outlet to accelerate the flow of smoke when needed, a plurality of parallel smoke pipes 11 and a plurality of parallel second heat exchange pipes 10 are arranged in the flue, and the second heat exchange pipes are connected with a second water tank through a second water inlet and a second water outlet.

And a plurality of vertical and parallel third heat exchange tubes 8 are arranged on the inner side wall of the combustion area, and the third heat exchange tubes are connected with a third water tank through a third water outlet and a third water inlet. Referring to fig. 3, the combustion zone has a grate 3 with an ash outlet above the grate and a feed inlet 14 in the wall of the furnace and an air inlet 13 in the wall of the furnace below the grate.

The first heat exchange tube, the second heat exchange tube and the third heat exchange tube arranged in the embodiment comprise the water tanks connected with the first heat exchange tube, so that the heat of the flue gas can be fully utilized, and the water with different temperatures can be utilized. The three tanks may also be integrated into one.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a horizontal tubular cigarette of slope, vapour heat transfer water-cooling bushing type biomass boiler which characterized in that, this boiler includes: the boiler body, the oven of boiler body is cavity sandwich structure, the downside of boiler body sets up first water inlet, the side of going up of boiler body sets up first delivery port, through first water inlet with first water tank is connected to first delivery port, boiler body is inside to be provided with the flue baffle and to set the boiler body inside into combustion area and flue two parts, the flue baffle is cavity sandwich structure, and the cavity sandwich structure at the flue baffle communicates with each other with the cavity sandwich structure of oven.

2. The boiler as claimed in claim 1, wherein three rows of the first heat exchange tubes are arranged in a staggered arrangement in an upper space inside the boiler body, the first heat exchange tubes obliquely crossing the inner wall of the boiler body and being connected to the hollow space of the boiler body at a flue position in an upper portion of the boiler body.

3. The boiler according to claim 2, wherein the first heat exchange tubes are inclined at an angle of 15 to 30 degrees.

4. The boiler as claimed in claim 2, wherein the first heat exchange tube has a plurality of nozzles provided at both ends of the hollow sandwich.

5. The boiler of claim 1, wherein a plurality of parallel flue tubes and a plurality of parallel second heat exchange tubes are disposed in the flue, the second heat exchange tubes being connected to the second water tank through a second water inlet and a second water outlet.

6. The boiler of claim 1, wherein a plurality of vertically parallel third heat exchange tubes are provided in an inner sidewall of the combustion zone, and the third heat exchange tubes are connected to a third water tank through a third water outlet and a third water inlet.

7. The boiler according to claim 1, wherein the wall of the boiler body shares one water outlet and one water inlet for the plurality of pipes.