CN212619302U

CN212619302U - Boiler

Info

Publication number: CN212619302U
Application number: CN202020682341.2U
Authority: CN
Inventors: 王延海
Original assignee: Liaoning Longli Blue Sky Environmental Protection Technology Co ltd
Current assignee: Liaoning Longli Blue Sky Environmental Protection Technology Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-02-26
Anticipated expiration: 2030-04-29

Abstract

The utility model belongs to the technical field of burner, in particular to boiler of heat transfer formula. The furnace comprises a furnace body, wherein a drain pipe is arranged at the lower end of the side wall of the furnace body, and a smoke exhaust pipe is arranged at the top of the furnace body; the upper end of the inner cavity of the furnace body is provided with at least one water inlet pipe, and each water inlet pipe is provided with a plurality of sprayers; the lower part of the inner cavity of the furnace body is provided with at least one flame spraying pipe, and one end of each flame spraying pipe extends out of the side wall of the furnace body and is communicated with an opposite burner arranged outside the furnace body; each flame-spraying pipe is bent and arranged in the inner cavity of the furnace body, the smoke outlet of each flame-spraying pipe is arranged upwards, and the upper end of the smoke outlet is provided with a smoke cap; the smoke outlet is positioned above the water level line; a water replenishing pipe is arranged in the furnace body. The hot gas contacts with the cold water sprayed by the sprayer on the upper water inlet pipe to achieve the effects of heat exchange and flue gas cleaning, and the cigarette cap at the upper end of the cigarette outlet can prevent water from entering the flaming pipe and also can enable the flue gas to diffuse all around and to be more fully contacted with the water; the water falls to the lower part under the water and is discharged through the water discharge pipe, and when the water level is lower than the set water level line, the water replenishing pipe replenishes water into the furnace body to prevent dry burning.

Description

Boiler

Technical Field

The utility model belongs to the technical field of burner, in particular to boiler of heat transfer formula.

Background

The traditional boiler separates water from high-temperature flame and flue gas through a metal pipe or separates a furnace body into a cavity, so that heat exchange is carried out in a heat conduction mode, the structure is complex, the heat exchange efficiency of the traditional boiler is completely dependent on the heat conduction coefficient and the effective heating area of the metal pipe, and the heat exchange efficiency is easily influenced by scale. Compared with the traditional boiler, the water-fire direct heat exchange type boiler has the advantages of low energy consumption, high heat efficiency, simple equipment and the like.

However, the existing water-fire direct heat exchange type boiler also has certain problems, such as dry burning of the boiler caused by too low water level, poor heating effect, low heat exchange efficiency and the like.

Disclosure of Invention

An object of the utility model is to provide a boiler to solve the problem that the boiler burns futilely or the heat transfer effect is not good among the relevant technical field at least.

The utility model adopts the technical proposal that: the boiler comprises a boiler body, wherein a drain pipe is arranged at the lower end of the side wall of the boiler body, and a smoke exhaust pipe is arranged at the top of the boiler body; the upper end of the inner cavity of the furnace body is provided with at least one water inlet pipe, and each water inlet pipe is provided with a plurality of sprayers;

the lower part of the inner cavity of the furnace body is provided with at least one flame spraying pipe, and one end of each flame spraying pipe extends out of the side wall of the furnace body and is communicated with an opposite burner arranged outside the furnace body;

each flame-spraying pipe is bent and arranged in the inner cavity of the furnace body, the smoke outlet of each flame-spraying pipe is arranged upwards, and the upper end of the smoke outlet is provided with a smoke cap; the smoke outlet is positioned above the water level line;

a water replenishing pipe is arranged in the furnace body.

Furthermore, a water absorber is arranged at the bottom of the inner cavity of the furnace body and is connected with a drain pipe.

Furthermore, the upper end of the water absorber is provided with at least one fuel pipe, two ends of each fuel pipe extend out of the side wall of the furnace body, and one end of each fuel pipe is connected with the burner.

Furthermore, all be equipped with the solenoid valve on every fuel line, all be equipped with the filter screen on every fuel line.

Furthermore, each water inlet pipe is provided with a plurality of downward inclined water spraying holes.

Furthermore, a nozzle is arranged on an outlet of one end of each fuel pipe connected with the combustor.

Furthermore, a first valve is arranged on the inlet pipe, and a second valve is arranged on the exhaust pipe.

Furthermore, the lower end of the side wall of the furnace body is provided with a sewage discharge pipe.

Further, a plurality of the sprayers are arranged in a stepped manner.

Furthermore, a water replenishing valve is arranged on the water replenishing pipe.

In the embodiment, the burner sprays flame into the flame spraying pipe, the combusted smoke is discharged through the smoke outlet of the flame spraying pipe, hot gas is contacted with cold water sprayed by a sprayer on the upper water inlet pipe to achieve the effects of heat exchange and smoke cleaning, and the upper end of the smoke outlet is provided with a smoke cap which can prevent water from entering the flame spraying pipe and can also enable the smoke to diffuse around and be more fully contacted with the water; the water falls to the lower part under the water and is discharged through the water discharge pipe, and when the water level is lower than the set water level line, the water replenishing pipe replenishes water into the furnace body to prevent dry burning.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the attached drawings

FIG. 1 is a schematic diagram of an alternative boiler according to an embodiment of the present invention;

the boiler comprises a boiler body 1, a water discharge pipe 2, a smoke discharge pipe 3, a water inlet pipe 4, a sprayer 5, a fire spraying pipe 6, a burner 7, a smoke outlet 8, a smoke cap 9, a water level line 10, a water replenishing pipe 11, a water absorber 12, a fuel pipe 13, an electromagnetic valve 14, a filter screen 15, a nozzle 16, a first valve 17, a second valve 18, a water replenishing valve 19, a sewage discharge pipe 20 and a water spray hole 21.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

According to the embodiment of the utility model, fig. 1 provides an embodiment of a boiler, as shown in fig. 1, the boiler comprises a boiler body 1, a drain pipe 2 is arranged at the lower end of the side wall of the boiler body 1, and a smoke exhaust pipe 3 is arranged at the top of the boiler body 1; the upper end of the inner cavity of the furnace body 1 is provided with at least one water inlet pipe 4, and each water inlet pipe 4 is provided with a sprayer 5; the number of the water inlet pipes can be selected according to the actual size of the boiler;

the lower part of the inner cavity of the furnace body 1 is provided with at least one flame spraying pipe 6, and one end of each flame spraying pipe 6 extends out of the side wall of the furnace body 1 and is communicated with an opposite burner 7 arranged outside the furnace body 1; the number of flame lances 6 is also selected according to the size of the boiler,

each flame-spraying pipe 6 is arranged in the inner cavity of the furnace body 1 in a bending way, and the flame-spraying pipes 6 are in a transverse U shape and can also be in an S shape or a C shape; the tail end of each flame-throwing pipe 6 is provided with a smoke outlet 8 facing upwards, and the upper end of the smoke outlet 8 is provided with a smoke cap 9; the smoke outlet 8 is positioned above the water level line 10;

a water supplementing pipe 11 is arranged in the furnace body 1, and the water supplementing pipe 11 is inserted into the furnace body 1 from the side wall of the furnace body 1 or is inserted into the furnace body 1 from the top of the furnace body 1.

In the embodiment, the burner 7 sprays flame into the flame spraying tube 6, and the outer wall of the flame spraying tube 6 arranged in a bent manner is fully contacted with water to achieve the heat exchange project; the flue gas after burning is discharged through a smoke outlet 8 of the fire-spraying pipe 6, hot gas is contacted with cold water sprayed by a sprayer 5 on an upper water inlet pipe 4 to achieve the effects of heat exchange and flue gas cleaning, a smoke cap 9 is arranged at the upper end of the smoke outlet 8, the smoke cap 9 is of a hollow cone structure, water can be prevented from entering the fire-spraying pipe 6, the flue gas can also be diffused towards the periphery, and the flue gas is more fully contacted with the water;

the water falls to the lower part and is discharged through the water discharge pipe 2, and when the water level is lower than a set water level line 10, the water supplementing pipe 11 supplements water to the furnace body 1 to prevent dry burning; the water level line 10 is located between the bent portion of the flame-throwing tube 6 and the smoke outlet 8, and can prevent the flame-throwing tube 6 from being dried.

Furthermore, a water absorber 12 is arranged at the bottom of the inner cavity of the furnace body 1, the water absorber 12 is connected with the drain pipe 2, the water absorber 12 is of a tubular structure, a plurality of through holes for absorbing water are formed in the pipe wall, water at the bottom of the inner cavity of the furnace body 1 can be uniformly discharged, water above the water absorber flows downwards, water is uniformly heated, the local temperature in the furnace body is prevented from being too high, and the heat transfer effect is reduced to cause the local burning of the fire-spraying pipe 6.

Furthermore, the upper end of the water absorber 12 is provided with at least one fuel pipe 13, two ends of each fuel pipe 13 extend out of the side wall of the furnace body 1, one end of each fuel pipe 13 is connected with the burner 7, and the other end is connected with the main fuel pipeline; in the present embodiment, the number of fuel pipes 13 corresponding to each burner 7 is 2, and the fuel in the fuel pipes 13 is preheated by the hot water in the furnace body 1, so that the fuel is more sufficiently combusted.

Furthermore, each fuel pipe 13 is provided with an electromagnetic valve 14 and a filter screen 15, and an outlet of one end of the fuel pipe 13 connected with the combustor 7 is provided with a nozzle 16; the solenoid valve 14 facilitates the control of the fuel supply, the nozzle 16 provides for more complete combustion, and the filter screen 15 is used to filter out particulate matter from the fuel.

Furthermore, each water inlet pipe 4 is provided with a plurality of downward inclined water spraying holes 21 for assisting water spraying, and the optimal included angle between each water spraying hole 21 and the vertical axis is 75 degrees.

Furthermore, a first valve 17 is arranged on the water inlet pipe 4, and a second valve 18 is arranged on the water outlet pipe 2; the first valve 17 and the second valve 18 are used for controlling water supply and drainage;

the water replenishing pipe 11 is provided with a water replenishing valve 19, the water replenishing valve 19 can automatically control the water replenishing pipe 11 to replenish water, when the water surface is lower than the water level line 10, water is automatically replenished into the furnace body 1 to prevent dry burning, the water replenishing pipe 11 can also control water replenishing in a floating ball mode, and can also be controlled by a liquid level sensor.

Furthermore, the lower end of the side wall of the furnace body 1 is provided with a drain pipe 20 for discharging scale and filth in the furnace body 1.

Further, a plurality of sprayers 5 are arranged in a stepped mode, so that water can fall down at a plurality of positions and angles, and the contact effect of the water and the smoke is better.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Boiler, including furnace body (1), its characterized in that: a drain pipe (2) is arranged at the lower end of the side wall of the furnace body (1), and a smoke exhaust pipe (3) is arranged at the top of the furnace body (1); the upper end of the inner cavity of the furnace body (1) is provided with at least one water inlet pipe (4), and each water inlet pipe (4) is provided with a plurality of sprayers (5);

at least one flame spraying pipe (6) is arranged at the lower part of the inner cavity of the furnace body (1), and one end of each flame spraying pipe (6) extends out of the side wall of the furnace body (1) and is communicated with a relative combustor (7) arranged outside the furnace body (1);

each flame spraying pipe (6) is arranged in an inner cavity of the furnace body (1) in a bending mode, a smoke outlet (8) of each flame spraying pipe (6) faces upwards, and a smoke cap (9) is arranged at the upper end of each smoke outlet (8); the smoke outlet (8) is positioned above the water level line (10);

a water replenishing pipe (11) is arranged in the furnace body (1).

2. The boiler according to claim 1, wherein: the water absorber (12) is arranged at the bottom of the inner cavity of the furnace body (1), and the water absorber (12) is connected with the drain pipe (2).

3. The boiler according to claim 2, wherein: the water absorption device is characterized in that the upper end of the water absorption device (12) is provided with at least one fuel pipe (13), two ends of each fuel pipe (13) extend out of the side wall of the furnace body (1), one end of each fuel pipe (13) is connected with the combustion engine (7), and the other end of each fuel pipe (13) is connected with the main pipeline.

4. The boiler according to claim 3, wherein: each fuel pipe (13) is provided with an electromagnetic valve (14); each fuel pipe (13) is provided with a filter screen (15).

5. The boiler according to claim 3, wherein: each water inlet pipe (4) is provided with a plurality of water spray holes (21) which incline downwards.

6. The boiler according to claim 3, wherein: and a nozzle (16) is arranged on an outlet at one end of each fuel pipe (13) connected with the combustor (7).

7. The boiler according to claim 1, wherein: a first valve (17) is arranged on the water inlet pipe (4); and a second valve (18) is arranged on the water discharge pipe (2).

8. The boiler according to claim 1, wherein: the lower end of the side wall of the furnace body (1) is provided with a sewage discharge pipe (20).

9. The boiler according to claim 3, wherein: a plurality of said sprayers (5) are arranged in a stepped manner.

10. The boiler according to claim 1, wherein: and a water replenishing valve (19) is arranged on the water replenishing pipe (11).