CN214536111U

CN214536111U - Special steam boiler for horizontal biomass burner

Info

Publication number: CN214536111U
Application number: CN202120029200.5U
Authority: CN
Inventors: 杨康; 孙以松; 罗庆
Original assignee: Jiangsu Shuangyang Boiler Pressure Vessel Co ltd
Current assignee: Jiangsu Shuangyang Boiler Pressure Vessel Co ltd
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2021-10-29
Anticipated expiration: 2031-01-07

Abstract

The utility model relates to the field of boiler equipment, in particular to a special steam boiler for a horizontal biomass burner, which comprises a boiler body and a biomass burner for supplying heat into the boiler body, wherein a furnace pipe connected with the biomass burner, a recombustion chamber connected with the furnace pipe and a smoke tube bundle communicated with the recombustion chamber are arranged in the boiler body; the boiler body is also provided with a front smoke box and a rear smoke box, and the rear smoke box is communicated with the smoke tube bundle; a normal pressure energy saver is also arranged above the boiler body and is communicated with the rear smoke box; the normal-pressure energy saver comprises an energy saver and a normal-pressure water tank which are communicated; the energy saver is provided with a water inlet and a water outlet and is connected with the normal-pressure water tank. The utility model discloses the heat that carries in can the make full use of flue gas for the whole thermal efficiency of boiler is higher.

Description

Special steam boiler for horizontal biomass burner

Technical Field

The utility model relates to a boiler equipment field, concretely relates to horizontal biomass burner special steam boiler.

Background

Due to the characteristics of high temperature of steam, the exhaust gas temperature of most of the existing steam boilers is higher and reaches more than 200 ℃ individually. The efficiency is calculated by the low-order calorific value, the efficiency is usually about 82%, the physical sensible heat is wasted greatly, and the latent heat of vaporization with the difference of the high-order calorific values is wasted completely, so that a large amount of energy is consumed, and the operation cost of the boiler is increased.

Taking biomass as an example, the biomass mainly comprises C, H, O, and because the biomass contains a considerable amount of H element, the amount of steam generated by combustion is large, and a large amount of heat is absorbed, so that the high calorific value of the biomass is about 10% higher than the low calorific value, and about 10% of the heat is taken away by the steam. If the temperature of the exhaust gas of the boiler is reduced to a sufficiently low level. The superheated water vapor in the flue gas can be condensed into water to release latent heat of vaporization, so that the latent heat of vaporization in the flue gas can be recycled.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model aims to provide a special steam boiler of horizontal biomass combustion ware, the heat that carries in the make full use of flue gas for the whole thermal efficiency of boiler is higher.

In order to achieve the above purpose, the utility model provides a following technical scheme: a steam boiler special for a horizontal biomass burner comprises a boiler body and the biomass burner for supplying heat to the interior of the boiler body, wherein a furnace pipe connected with the biomass burner, a recombustion chamber connected with the furnace pipe and a smoke pipe bundle communicated with the recombustion chamber are arranged in the boiler body;

the boiler body is also provided with a front smoke box and a rear smoke box, and the rear smoke box is communicated with the smoke tube bundle;

a normal pressure energy saver is also arranged above the boiler body and is communicated with the rear smoke box;

the normal-pressure energy saver comprises an energy saver and a normal-pressure water tank which are communicated; the energy saver is provided with a water inlet and a water outlet, the water inlet and the water outlet are communicated with the normal-pressure water tank, and the energy saver is communicated with the normal-pressure water tank.

Furthermore, a plurality of energy-saving tube bundles are arranged in the normal-pressure energy saver.

Furthermore, the energy-saving tube bundle is composed of a plurality of energy-saving tubes, and the energy-saving tubes are light tubes.

Further, the boiler body include the barrel, set up the preceding tube sheet in the barrel front end and set up the back tube sheet in the barrel rear end, between preceding tube sheet and the barrel, all be provided with support piece between back tube sheet and the barrel.

Furthermore, a straight pull support rod is arranged between the rear tube plate and the back combustion chamber.

Furthermore, the front tube plate and the rear tube plate are both edge-wrenching tube plates.

Contrast prior art not enough, the utility model provides a beneficial effect that technical scheme brought: when the biomass burner is used, fuel is mixed with air in the biomass burner and then is ignited by the electronic ignition rod, the mixture is sprayed into the furnace pipe to be burnt, high-temperature flue gas enters the flue pipe bundle through the furnace pipe via the combustion chamber and enters the normal-pressure water tank from the rear flue box, and finally the flue gas is treated by equipment such as dust removal and the like and then is discharged into the atmosphere; simultaneously because the water in the water tank passes through the continuous circulation of circulating pump, the continuous replacement of the hot water in the energy-saving appliance comes out, consequently the temperature in the ordinary pressure energy-saving appliance continuously keeps at low water temperature, the water in the ordinary pressure energy-saving appliance can continuously cool off the flue gas, thereby the heat of carrying in the make full use of flue gas, simultaneously in the ordinary pressure water tank by boiler water pump suction boiler body, thereby make the temperature in the boiler rise sooner, the thermal efficiency is higher, the heat utilization effect to carrying in the flue gas is better.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for purposes of illustration and explanation only and are not intended to limit the invention.

It should be noted that these drawings are simplified schematic views, and the basic structure of the present invention is described only in a schematic manner, and therefore, only the configuration related to the present invention is shown.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention is further described with reference to fig. 1.

A steam boiler special for a horizontal biomass burner comprises a boiler body 1 and a biomass burner 2 for supplying heat into the boiler body 1, wherein a furnace 3 connected with the biomass burner 2, a back combustion chamber 4 connected with the furnace 3 and a smoke tube bundle 5 communicated with the back combustion chamber 4 are arranged in the boiler body 1; the boiler body 1 is also provided with a front smoke box 11 and a rear smoke box 12, and the rear smoke box 12 is communicated with the smoke tube bundle 5; a normal pressure energy saver 6 is also arranged above the boiler body 1, and the normal pressure energy saver 6 is communicated with a rear smoke box 12; the normal pressure energy saver 6 comprises an energy saver 61 and a normal pressure water tank 62 which are communicated; the energy saver 61 is provided with a water inlet 611 and a water outlet 612, and the energy saver 61 is communicated with the normal pressure water tank 62. When the biomass burner is used, fuel is mixed with air in the biomass burner 2 and then is ignited by the electronic ignition rod, the mixture is sprayed into the furnace pipe 3 for combustion, high-temperature flue gas enters the flue pipe bundle 5 from the furnace pipe 3 through the back combustion chamber 4 and enters the energy saver 6 from the rear smoke box 12, and finally the flue gas is discharged into the atmosphere after passing through equipment such as dust removal equipment; simultaneously because water inlet 611 and delivery port 612 set up on energy-saving appliance 61, energy-saving appliance 61 and ordinary pressure water tank 62 are linked together, consequently, the temperature of water in the ordinary pressure energy-saving appliance 6 lasts and keeps at low water temperature, make the water in the ordinary pressure water tank 62 can last to cool off the flue gas through energy-saving appliance 61, thereby make full use of the heat that carries in the flue gas, the water that is heated in the ordinary pressure water tank 62 simultaneously can pass through boiler water pump suction boiler, thereby make the temperature of water in the boiler rise sooner, the thermal efficiency is higher, the heat utilization effect to carrying in the flue gas is better

Furthermore, a plurality of energy-saving tube bundles are arranged in the normal-pressure energy saver 6, each energy-saving tube bundle is composed of a plurality of energy-saving tubes, the energy saver 62 is connected with a dust removal device at the tail part through a connecting chimney, and meanwhile, when the normal-pressure energy saver is used, the energy-saving tubes have larger contact area with water, so that the cooling effect on flue gas is better, the heat in the flue gas can be fully utilized, and the utilization effect on the heat is better;

further, the boiler body comprises a cylinder body 13, a front tube plate 14 arranged at the front end of the cylinder body 13 and a rear tube plate 15 arranged at the rear end of the cylinder body 13, and supporting pieces 16 are arranged between the front tube plate 14 and the cylinder body 13 and between the rear tube plate 15 and the cylinder body 13, so that the rigidity of a boiler pressure piece is enhanced, the thickness of the tube plate can be effectively reduced, and the steel consumption of the boiler is reduced.

Further, be equipped with the straight pull vaulting pole between back tube sheet 15 and the chamber 4 of backflowing, consequently make during operation chamber 14 of backflowing more stable, avoid rocking because strike and cause.

Further, the front tube plate 14 and the rear tube plate 15 are both wrenching tube plates, so that the problem of stress caused by expansion of the cylinder body 13 is avoided, and the deformation of the cylinder body is reduced.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the skilled in the art can carry out the common changes and replacements within the technical solution of the present invention.

Claims

1. The utility model provides a horizontal biomass combustion ware special steam boiler, includes boiler body and to this internal supply thermal biomass combustion ware of boiler, its characterized in that:

a furnace pipe connected with the biomass burner, a recombustion chamber connected with the furnace pipe and a smoke pipe bundle communicated with the recombustion chamber are arranged in the boiler body;

2. The steam boiler special for the horizontal biomass burner as claimed in claim 1, wherein: the normal pressure energy saver is internally provided with a plurality of energy saving tube bundles.

3. The steam boiler special for the horizontal biomass burner as claimed in claim 2, wherein: the energy-saving tube bundle is composed of a plurality of energy-saving tubes, and the energy-saving tubes are light tubes.

4. The steam boiler special for the horizontal biomass burner as claimed in claim 1, wherein: the boiler body comprises a barrel, a front tube plate arranged at the front end of the barrel and a rear tube plate arranged at the rear end of the barrel, wherein supporting pieces are arranged between the front tube plate and the barrel and between the rear tube plate and the barrel.

5. The steam boiler special for the horizontal biomass burner as claimed in claim 4, wherein: and a straight pull support rod is arranged between the rear tube plate and the back combustion chamber.

6. The steam boiler special for the horizontal biomass burner as claimed in claim 4, wherein: the front tube plate and the rear tube plate are both edge-wrenching tube plates.