CN211345382U

CN211345382U - Obliquely-inserted methane spray pipe tempering carbon deposition prevention boiler

Info

Publication number: CN211345382U
Application number: CN201921416809.7U
Authority: CN
Inventors: 杨聪
Original assignee: Chengdu Hongzhan Huizhi Technology Co ltd
Current assignee: Chengdu Hongzhan Huizhi Technology Co ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-08-25
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses an insert marsh gas spray tube to one side and prevent tempering carbon deposit boiler belongs to marsh gas boiler technical field, solved the marsh gas spray tube among the prior art among the marsh gas boiler problem that the combustion efficiency is low because the marsh gas spray tube is easy to be blocked, the utility model discloses a fan, marsh gas pipe and boiler, the fan is connected with the boiler through marsh gas pipe, be equipped with the marsh gas entry on the fan, be connected with marsh gas spray gun between marsh gas pipe and the boiler, marsh gas spray gun inclines to insert in the boiler, the slope contained angle between marsh gas spray gun and the horizontal direction is 45 at least, still install the flame arrester on the marsh gas pipe between fan and the boiler, the flame arrester divides marsh gas pipe into two sections, the part marsh gas pipe that is connected with the fan stretches into the container bottom in the flame arrester, the part marsh gas pipe that is connected with the boiler stretches into the container top in the flame arrester, install blowoff valve, the emptying valve and the safety valve are connected in parallel. The utility model discloses an equipment security is high, and combustion efficiency is high.

Description

Obliquely-inserted methane spray pipe tempering carbon deposition prevention boiler

Technical Field

The utility model belongs to the technical field of marsh gas burning boiler, concretely relates to insert marsh gas spray tube to one side and prevent tempering carbon deposit boiler.

Background

The biogas is generated by anaerobic fermentation of alcohol waste mash environment-friendly sewage treatment, and comprises: H2S: 1-3mg/L, 70-80% of CH4, 20-30% of CO2, and calorific value: 24000kJ/Nm³. In recent years, the biogas generated by anaerobic fermentation of alcohol waste mash is generally conveyed to a boiler through a pressurized pipeline, so that the problem of environmental protection is solved, and meanwhile, heat energy is comprehensively utilized. However, the biogas spray pipe is inserted into the hearth and is easily blocked by burnt ash, so that biogas cannot smoothly enter the hearth, the burning efficiency is reduced, and potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a:

in order to solve the problem that a biogas spray pipe in a biogas boiler in the prior art is easy to block, so that the combustion efficiency is low, the boiler with the obliquely inserted biogas spray pipe for preventing carbon deposition caused by tempering is provided.

The utility model adopts the technical scheme as follows:

the boiler is characterized in that the fan is connected with the boiler through the methane pipe, a methane inlet is formed in the fan, a methane spray gun is connected between the methane pipe and the boiler, and the methane spray gun is obliquely inserted into the boiler.

Further, the inclined angle between the methane spray gun and the horizontal direction is at least 45 degrees.

Furthermore, a flame arrester is further installed on the biogas pipe between the fan and the boiler, the biogas pipe is divided into two sections by the flame arrester, a part of the biogas pipe connected with the fan extends into the bottom of the container in the flame arrester, and a part of the biogas pipe connected with the boiler extends into the top of the container in the flame arrester.

Further, an exhaust valve and a safety valve are arranged on a biogas pipe between the fan and the flame arrester and are connected in parallel.

Further, the biogas pipe is connected with a grounding wire.

The working principle of the utility model is as follows:

after being pressurized by the fan, the biogas enters the boiler through the water-sealed flame arrester and the biogas spray gun to be combusted, the biogas spray gun is inserted into a hearth of the boiler at an inclined angle of 45 degrees, and combusted ash and slag cannot stay in the spray gun under the action of gravity, so that the spray gun cannot be coked and blocked, sufficient biogas can smoothly enter the hearth to be fully combusted, the combustion efficiency is improved, and the safety of equipment is ensured.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses an in inserting the furnace of boiler with 45 at least contained angles to one side with the marsh gas spray gun, compare in inserting furnace with the spray gun level, the lime-ash of having avoided the burning to produce stops to cause the spray gun to block up in the spray gun to guarantee the transport capacity of marsh gas, promoted the efficiency of burning, reduced the risk of equipment block up explosion.

2. The utility model discloses a water-sealed spark arrester is connected on the marsh gas pipe, prevents that marsh gas deflagration back edge biogas pipeline from igniting the marsh gas source and exploding, has improved the security of equipment, has ensured operating personnel's personal safety.

3. The utility model discloses the marsh gas pipe is provided with static ground connection, has prevented that the static spark from lighting marsh gas, has further improved the safety guarantee nature of equipment.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a structural view of the present invention.

Description of reference numerals:

1-a fan, 2-an emptying valve, 3-a safety valve, 4-a flame arrester, 5-a biogas spray gun, 6-a boiler and 7-a biogas pipe.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The present invention will be described in detail with reference to fig. 1.

Example 1

The embodiment as a basis:

a boiler 6 with an obliquely inserted biogas spray pipe for preventing and treating carbon deposition caused by tempering comprises a fan 1, a biogas pipe 7 and a boiler 6 and is characterized in that the fan 1 is connected with the boiler 6 through the biogas pipe 7, a biogas inlet is formed in the fan 1, a biogas spray gun 5 is connected between the biogas pipe 7 and the boiler 6, the biogas spray gun 5 is obliquely inserted into the boiler 6, and an inclined included angle between the biogas spray gun 5 and the horizontal direction is at least 45 degrees.

The utility model discloses an in inserting the furnace of boiler 6 with 45 at least contained angles to one side with marsh gas spray gun 5, compare in inserting furnace with the spray gun level, the lime-ash of having avoided the burning to produce stops to cause the spray gun to block up in the spray gun to guarantee the transport capacity of marsh gas, promoted the efficiency of burning, reduced the risk of equipment jam explosion.

Preferably, the utility model discloses a fan 1 adopts roots's fan 1.

Example 2

In the embodiment, a fire arrester 4 is further installed on a biogas pipe 7 between a fan 1 and a boiler 6, the biogas pipe 7 is divided into two sections by the fire arrester 4, a part of the biogas pipe 7 connected with the fan 1 extends into the bottom of a container in the fire arrester 4, a part of the biogas pipe 7 connected with the boiler 6 extends into the top of the container in the fire arrester 4, an exhaust valve 2 and a safety valve 3 are installed on the biogas pipe 7 between the fan 1 and the fire arrester 4, and the exhaust valve 2 and the safety valve 3 are connected in parallel.

The utility model discloses a water sealed spark arrester 4 is connected on marsh gas pipe 7, prevents that marsh gas deflagration back from igniting the marsh gas source along marsh gas pipe 7 and exploding, has improved the security of equipment, has ensured operating personnel's personal safety.

Example 3

In this embodiment, the improved parts compared with the above embodiments are mainly explained, and the same parts are not described again, in this embodiment, the biogas pipe 7 is connected with a ground wire, so as to prevent the electrostatic spark from igniting the biogas, and further improve the safety guarantee of the device.

The utility model discloses an equipment needs to accomplish following several points in the actual implementation arrangement:

1. the boiler biogas blending combustion system has the functions of biogas pressurization and conveying, filtering, pressure regulating, leakage detection, backfire prevention, flame monitoring in a hearth and stable combustion;

2. the biogas is used by blending and must be put into use under the condition that the boiler normally operates; the air distribution of the biogas burner is required to be taken from primary or secondary cold air of the boiler; before the boiler is stopped, the methane is stopped in advance, so that the methane is prevented from entering the boiler to explode and damage the boiler body equipment.

3. The corrosion problem of H2S must be considered for valves and pipelines of the biogas pipeline, and the biogas pipeline is set with electrostatic grounding;

4. the biogas burner is arranged in the dense phase region of the hearth of the circulating fluidized bed, has large positive pressure, and is inserted into the hearth at an angle of 45 degrees or more than 45 degrees in order to prevent the nozzle of the burner from being blocked by ash residues.

The utility model discloses a boiler can use circulating fluidized bed boiler, and circulating fluidized bed boiler's core structure is the circulation combustion characteristic of constituteing by fuel dense phase district, dilute phase district, separator and returning charge ware. The fuel enters a dense-phase zone to be mixed with air for fluidized combustion, and the hot high-temperature flue gas carries a large amount of burning solid particles to wash a dilute-phase zone, and the burning gas is combusted while transferring the heat released by the combustion to a heated surface therein to heat the working medium (water) of the gas; unburned solid particles enter the separator, are collected, enter the dense-phase zone again through the material returning device, and are combusted circularly and repeatedly, so that the combustion efficiency is greatly improved; meanwhile, the desulfurizing agent (limestone) and sulfur in combustion continuously perform chemical reaction in material circulation, so that the desulfurization efficiency is effectively improved; the burnt solid fine particles escape from the separator along with the high-temperature flue gas, wash the convection heating surface and the tail heating surface, and are discharged into the atmosphere after being dedusted by the deduster.

According to the characteristics of the fluidized bed, the maximum energy conservation of the boiler is ensured after the methane is mixed and burned, and the methane can be added into a lower dense-phase area to ensure the temperature of a hearth. Because the circulating fluidized bed has a fire source, the phenomenon of flameout and explosion does not exist, and after safety precaution measures are taken, the mixed combustion of the biogas is safe.

Claims

1. The utility model provides an insert marsh gas spray tube to one side and prevent tempering carbon deposit boiler, includes fan (1), marsh gas pipe (7) and boiler (6), its characterized in that, fan (1) is connected with boiler (6) through marsh gas pipe (7), is equipped with the marsh gas entry on fan (1), is connected with marsh gas spray gun (5) between marsh gas pipe (7) and boiler (6), marsh gas spray gun (5) slope is inserted in boiler (6).

2. The boiler with the obliquely inserted biogas spray pipes for preventing carbon deposition caused by tempering according to claim 1, wherein an inclined angle between the biogas spray gun (5) and the horizontal direction is at least 45 °.

3. The boiler with the obliquely inserted biogas spray pipe for preventing and treating carbon deposition caused by backfire as recited in claim 1, wherein a flame arrester (4) is further installed on the biogas pipe (7) between the fan (1) and the boiler (6), the biogas pipe (7) is divided into two sections by the flame arrester (4), a part of the biogas pipe (7) connected with the fan (1) extends into the bottom of a container in the flame arrester (4), and a part of the biogas pipe (7) connected with the boiler (6) extends into the top of the container in the flame arrester (4).

4. The boiler with the obliquely inserted biogas nozzle for preventing and treating carbon deposition caused by tempering as recited in claim 3, wherein an exhaust valve (2) and a safety valve (3) are installed on the biogas pipe (7) between the fan (1) and the flame arrester (4), and the exhaust valve (2) and the safety valve (3) are connected in parallel.

5. The boiler with the obliquely inserted biogas nozzles for preventing carbon deposition caused by tempering as recited in claim 1, wherein the biogas pipe (7) is connected with a grounding wire.