CN210979840U - A noise reduction and emission reduction fire exhaust - Google Patents

Abstract

The utility model discloses a noise reduction and emission reduction fire exhaust, which relates to the field of fire exhaust burners for gas water heaters. The fire exhaust body includes a connecting plate, a gas inlet pipe, an air inlet pipe, an air outlet and a gas nozzle. The upper end of the gas inlet pipe extends to the inside of the air inlet pipe; the gas nozzle is arranged inside the air outlet; the gas nozzle includes a central The gas nozzle and a plurality of circular gas nozzles, the lower part of the connecting plate is provided with a gas inlet pipe, the lower end of one side of the gas inlet pipe is provided with a gas inlet port, and the thickness of the upper part of the gas inlet pipe is smaller than the thickness of other parts of the gas inlet pipe A plurality of gas nozzles are arranged side by side on the upper end of the gas inlet pipe, and the upper end of the gas inlet pipe is communicated with the lower end of each gas nozzle. The utility model can effectively reduce noise, the position of the air outlet is reasonable, and the purpose of emission reduction can be realized.

Description

A noise reduction and emission reduction fire exhaust

technical field

The utility model relates to the field of fire exhaust burners for gas water heaters, in particular to a noise reduction and emission reduction fire exhaust.

Background technique

The fire row is the heating component in the gas water heater. The principle of the gas water heater is to heat the water flowing continuously in the coil through the burning flame to achieve the purpose of heating the cold water to the required temperature; There are air passages, so that after the igniter ignites the gas, the oxygen in the air can help the gas to burn fully. Above the burner, there is a water heater coil, the flame heats the coil, and the water flowing through it is also hot. Gas water heater fire pits mainly include T-shaped fire pits, Z-shaped fire pits and harmonica fire pits, among which harmonica fire pits are more commonly used.

At present, the main body of the harmonica-type fire exhaust is mainly the gas inlet pipe and the gas outlet nozzle. However, due to the insufficient combustion of the gas, harmful gas will be produced and energy is wasted, so the air inlet pipe and the air outlet hole are generally added. The airflow at the place is relatively unstable, and during the operation of the water heater, there will be a "whistling" noise of the flame shaking. Most of the fire exhausts on the market have been improved accordingly; The invention patent of "Emission Reduction Fire Exhaust" discloses a fire exhaust with an emission reduction and noise reduction device closely attached to the inner top wall of the nozzle, but its airflow is not stable enough, and the noise reduction effect is limited; The middle rectangle and the openings of the round holes on both sides, but the same airflow is not stable enough; other improvements have more or less similar problems, so a noise reduction and emission reduction fire exhaust is urgently needed in the market to solve these problems.

Utility model content

The purpose of the utility model is to provide a noise reduction and emission reduction fire exhaust, so as to solve the problem that the existing gas water heater fire exhaust proposed in the above-mentioned background technology cannot better stabilize the gas flow, resulting in the inability to effectively solve the noise problem.

In order to achieve the above purpose, the utility model provides the following technical solutions: a noise reduction and emission reduction fire exhaust, comprising a fire exhaust body, and the fire exhaust body includes a connecting plate, a gas intake pipe, an air intake pipe, an air outlet and a gas nozzle, and the gas The upper end of the air intake pipe extends to the interior of the air intake pipe; the gas nozzle is arranged inside the air outlet; the gas nozzle includes a central air nozzle and a plurality of circumferential air nozzles.

Preferably, the lower part of the connecting plate is provided with a gas inlet pipe, the lower end of one side of the gas inlet pipe is provided with a gas inlet, the thickness of the upper part of the gas inlet pipe is smaller than that of other parts of the gas inlet pipe, and the upper end of the gas inlet pipe is A plurality of gas nozzles are arranged side by side, and the upper end of the gas inlet pipe is communicated with the lower end of each gas nozzle.

Preferably, the upper part of the connecting plate is provided with an air intake pipe, one side of the air intake pipe is provided with an air intake port, the upper end of the air intake pipe is provided with a plurality of air outlets side by side, and the upper end of the air intake pipe is connected with each air outlet The lower ends are connected.

Preferably, the positions of each gas nozzle and each air outlet correspond one-to-one, the upper end of the gas nozzle extends above the air outlet, and the lower end of the gas nozzle is located at the upper end inside the air intake pipe.

Preferably, the plurality of circumferential gas nozzles of each gas nozzle are distributed in a circular array with the center of the central gas nozzle as the center.

Preferably, the side wall of the central air nozzle is provided with a plurality of bypass openings, the number of the bypass openings is equal to the number of the peripheral air nozzles, and the positions of the bypass openings and the bottom of the peripheral air nozzles correspond one-to-one.

Compared with the prior art, the beneficial effects of the present utility model are:

1. Compared with the open nozzle of the fire exhaust on the market, the gas nozzle of the present invention is longer, and can be compared to the annular fire exhaust of the gas stove with less noise, which can make the gas in In the process of rising along the nozzle, it gradually stabilizes the flow, effectively achieves the purpose of noise reduction, and solves the problem that the existing gas water heater fire exhaust can not stabilize the gas flow well, resulting in the inability to effectively solve the noise problem. It can make people's life more comfortable, reduce the mental disturbance caused by noise, and improve the quality of life.

2. For the noise reduction and emission reduction fire exhaust, the air intake pipe is arranged at the upper end of the gas intake pipe, and multiple air outlets are used to wrap each gas nozzle, so that the air can be effectively supplemented to the surrounding of each gas nozzle, Make the oxygen during combustion more uniform, making the combustion more sufficient than the general gas water heater fire exhaust on the market, and more sufficient combustion means higher energy utilization and less harmful exhaust emissions, achieving environmental protection and energy saving The new height is more in line with the development direction of society.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the left side view of the utility model;

Fig. 3 is the omitted drawing method of the top view of the utility model;

FIG. 4 is a partial cross-sectional structural schematic diagram of the nozzle.

In the figure: 10, fire exhaust body; 11, connecting plate; 12, gas inlet pipe; 13, air inlet pipe; 14, air outlet; 15, gas nozzle; 1501, central gas nozzle; 1502, circular gas nozzle; 1503 , Bypass opening.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

1-4, an embodiment of the present invention: a noise reduction and emission reduction fire exhaust, including a fire exhaust body 10, the fire exhaust body 10 includes a connecting plate 11, a gas intake pipe 12, and an air intake pipe 13 , an air outlet 14 and a gas nozzle 15. The upper end of the gas inlet pipe 12 extends to the interior of the air inlet pipe 13; the gas nozzle 15 is arranged inside the air outlet 14; Air nozzle 1502.

Further, the lower part of the connecting plate 11 is provided with a gas inlet pipe 12, the lower end of one side of the gas inlet pipe 12 is provided with a gas inlet, the thickness of the upper part of the gas inlet pipe 12 is smaller than the thickness of other parts of the gas inlet pipe 12, and the gas A plurality of gas nozzles 15 are arranged side by side at the upper end of the gas inlet pipe 12 , and the upper end of the gas inlet pipe 12 communicates with the lower end of each gas nozzle 15 .

Further, the upper part of the connecting plate 11 is provided with an air intake pipe 13, one side of the air intake pipe 13 is provided with an air intake port, the upper end of the air intake pipe 13 is provided with a plurality of air outlet ports 14 side by side, and the upper end of the air intake pipe 13 is provided with a plurality of air intake ports 14 side by side. It communicates with the lower end of each air outlet 14 .

Further, the positions of each gas nozzle 15 correspond to each air outlet 14 one-to-one, the upper end of the gas nozzle 15 extends above the air outlet 14 , and the lower end of the gas nozzle 15 is located at the upper end inside the air intake pipe 13 .

Further, the plurality of circumferential gas nozzles 1502 of each gas nozzle 15 are distributed in a circular array with the center of the central gas nozzle 1501 as the center.

Further, the sidewall of the central air nozzle 1501 is provided with a plurality of bypass openings 1503 , the number of bypass openings 1503 is equal to the number of the peripheral air nozzles 1502 , and the bypass openings 1503 correspond to the positions of the bottom of the peripheral air nozzles 1502 one-to-one.

Working principle: When in use, the gas enters the fire exhaust body 10 from the gas inlet at the lower end of the gas inlet pipe 12, and goes up into each gas nozzle 15 along the gas inlet pipe 12, and part of the gas flows directly from the central gas nozzle 1501. It is sprayed vertically upward, and the remaining gas is passed from each bypass opening 1503 to each circumferential air nozzle 1502 and sprayed upward, so as to achieve the purpose of steady flow; The main body 10 is inserted into the fire discharge body 10, and is led to each air outlet 14 along the air inlet pipe 13, and the air flows upward from each air outlet 14 to provide sufficient oxygen for each gas nozzle 15, so as to achieve full combustion and emission reduction Purpose; at the same time, ignite the gas ejected above the fire row.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (6)

1. A noise reduction and emission reduction fire exhaust, comprising a fire exhaust body (10), and the fire exhaust body (10) includes a connecting plate (11), a gas intake pipe (12), an air intake pipe (13), and an air outlet ( 14) and a gas nozzle (15), characterized in that: the upper end of the gas inlet pipe (12) extends to the inside of the air inlet pipe (13); the gas nozzle (15) is arranged inside the air outlet (14); the gas nozzle (15) includes a central air nozzle (1501) and a plurality of circumferential air nozzles (1502). 2. A noise reduction and emission reduction fire exhaust according to claim 1, characterized in that: a gas inlet pipe (12) is arranged at the lower part of the connecting plate (11), and a lower end of one side of the gas inlet pipe (12) is arranged There is a gas inlet, the thickness of the upper part of the gas inlet pipe (12) is smaller than the thickness of other parts of the gas inlet pipe (12), and a plurality of gas nozzles (15) are arranged side by side on the upper end of the gas inlet pipe (12), and the gas inlet The upper end of the gas pipe (12) communicates with the lower end of each gas nozzle (15). 3. The fire exhaust for noise reduction and emission reduction according to claim 2, characterized in that: an air intake pipe (13) is provided on the upper part of the connecting plate (11), and an air intake pipe (13) is provided on one side of the air intake pipe (13). The upper end of the air inlet pipe (13) is provided with a plurality of air outlet ports (14) side by side, and the upper end of the air inlet pipe (13) is communicated with the lower end of each air outlet (14). The noise reduction and emission reduction fire exhaust according to claim 3, characterized in that: the positions of each gas nozzle (15) and each air outlet (14) correspond one-to-one, and the upper end of the gas nozzle (15) extends Above the air outlet (14), the lower end of the gas nozzle (15) is located at the upper end inside the air intake pipe (13). 5. A fire exhaust for noise reduction and emission reduction according to claim 1, characterized in that: the plurality of circumferential gas nozzles (1502) of each gas nozzle (15) are in a circle with the center of the central gas nozzle (1501) as the center array distribution. 6. The fire exhaust for noise reduction and emission reduction according to claim 5, characterized in that: the side wall of the central gas nozzle (1501) is provided with a plurality of bypass openings (1503), and the number of bypass openings (1503) Equal to the number of circumferential gas nozzles (1502), the bypass openings (1503) correspond to the positions of the bottom of the circumferential gas nozzles (1502) one-to-one.

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