CN220355458U - Down-inlet type smoke-return-preventing blowing curtain structure of fireplace - Google Patents

Abstract

The utility model belongs to the technical field of fireplaces, and particularly relates to a downward-entry type smoke-return-preventing air blowing curtain structure of a fireplace.

Description

Down-inlet type smoke-return-preventing blowing curtain structure of fireplace

Technical Field

The utility model belongs to the technical field of fireplaces, and particularly relates to a downward smoke return prevention blowing curtain structure of a fireplace.

Background

In order to observe the combustion condition of a fireplace combustion chamber, a glass air curtain is generally arranged, dust is generated in the combustion chamber, and is attached to the air curtain, and the glass air curtain can be blackened for a long time under the action of high temperature; therefore, a structure of a blowing curtain is needed, namely, air flows are blown to the air curtain to blow off dust on the air curtain;

the current blowing curtain structure is shown in fig. 3, an air inlet gap 8 is arranged between the current combustion chamber 6 and the smoke exhaust chamber, air flow enters from the air inlet gap 8 and enters the combustion chamber 6 through the vent holes 3, and the air flow blows to the glass air curtain under the action of the air deflector 4;

although the dust of the glass air curtain can be well blown off by the existing structure to prevent the glass air curtain from becoming black, the problem is that smoke returning imagination is caused when the exhaust pipe is not smooth due to wind direction and the like, and the smoke flows upwards because the air inlet gap 8 is higher than the combustion chamber, and under the condition of unsmooth smoke discharging, the smoke is discharged outwards through the air vent 3 and finally enters the room through the air inlet gap 8, so that indoor smoke returning is caused;

how to solve the problem of smoke return is a research and development direction.

Disclosure of Invention

The utility model provides a downward smoke return prevention blowing curtain structure of a fireplace, which can solve the problems pointed out in the background technology.

The utility model provides a lower advance formula of fireplace prevents returning cigarette blast curtain structure, includes induced air pipe, airtight induced air chamber with the induced air pipe is connected, be equipped with the air vent between airtight induced air chamber and the combustion chamber, air vent department is equipped with the aviation baffle, the aviation baffle is with the air current direction glass air curtain, the air inlet end of induced air pipe highly be less than the combustion chamber is highly at top.

Preferably, the air induction pipe extends to the bottom of the furnace body.

Preferably, the number of the air inducing pipes is two, and the two air inducing pipes are arranged on two sides of the furnace body.

The beneficial effects are that: the utility model provides a downward smoke return prevention air blowing curtain structure of a fireplace, which adopts the downward smoke blowing curtain structure, and smoke dust generally flows upwards, so that the condition of smoke return does not generally occur.

Drawings

Figure 1 is a schematic view of the internal structure of the present utility model,

figure 2 is a schematic view of the air intake of the present utility model,

figure 3 is a schematic view of the original air curtain structure,

reference numerals illustrate:

reference numerals in the drawings: an air guiding pipe 1; sealing the air-inducing chamber 2; a vent hole 3; an air deflector 4; a glass air curtain 5; a combustion chamber 6; a furnace body 7; and an air inlet gap 8.

Detailed Description

One embodiment of the present utility model will be described in detail below with reference to the attached drawings, but it should be understood that the scope of the present utility model is not limited by the embodiment.

Example 1:

as shown in figures 1-3, the lower inlet type smoke return prevention blowing curtain structure of the fireplace provided by the embodiment of the utility model comprises an air guiding pipe 1 and a sealed air guiding chamber 2, wherein the sealed air guiding chamber 2 is connected with the air guiding pipe 1, the sealed air guiding chamber 2 is arranged above a combustion chamber, the outer side of the fireplace is sealed by a sealing plate, the side surface of the fireplace is connected with the air guiding pipe 1, the number of the air guiding pipes 1 can be two, the two sides of a furnace body 7 are arranged, an air vent 3 is arranged between the sealed air guiding chamber 2 and the combustion chamber 6, an air deflector 4 is arranged at the air vent 3, the existing blowing curtain structure is also provided with similar structures of the air vent 3 and the air deflector 4, the structure type and the function of the structure are basically similar, the air deflector 4 guides air flow to a glass air curtain 5, and the height of the air inlet end of the air guiding pipe 1 is lower than the top end of the combustion chamber 6.

In order to ensure or improve the anti-smoke return effect, the air guiding pipe 1 extends to the bottom of the furnace body 7, and in principle, the lower the air inlet end of the air guiding pipe 1 is, the less likely the smoke return occurs.

The working principle of the utility model is as follows: with reference to fig. 1-2, external air flow enters the sealed air inducing chamber 2 from the air inducing pipe 1 and then enters the combustion chamber 6 through the air holes 3, and the air flow is guided to the glass air curtain 5 under the action of the air guiding plate 4, so that the purpose of blowing the air curtain is realized;

smoke return prevention: because the height of the air inlet end of the air guiding pipe 1 is far lower than the smoke discharging height at the top end of the combustion chamber 6, according to the principles of rising hot air and falling cold air, smoke moves upwards, and even if smoke is not discharged smoothly, the smoke cannot enter the chamber through the air guiding pipe 1, so that smoke returning is caused.

The foregoing disclosure is merely illustrative of some embodiments of the utility model, but the embodiments are not limited thereto and variations within the scope of the utility model will be apparent to those skilled in the art.

Claims (3)

1. The utility model provides a lower advance formula of fireplace prevents returning cigarette blowing curtain structure which characterized in that: including induced air pipe (1), airtight induced air chamber (2) with induced air pipe (1) are connected, be equipped with air vent (3) between airtight induced air chamber (2) and combustion chamber (6), air vent (3) department is equipped with aviation baffle (4), aviation baffle (4) are with air current direction glass air curtain (5), the height of the air inlet end of induced air pipe (1) is less than the height at combustion chamber (6) top.

2. A down-entry smoke return prevention air curtain structure for a fireplace as defined in claim 1, wherein: the induced draft tube (1) extends to the bottom of the furnace body (7).

3. A down-entry smoke return prevention air curtain structure for a fireplace as defined in claim 2, wherein: the number of the air guide pipes (1) is two, and the two air guide pipes are arranged on two sides of the furnace body (7).