CN221035794U

CN221035794U - Fume extractor

Info

Publication number: CN221035794U
Application number: CN202322983171.8U
Authority: CN
Inventors: 易金文; 易子钦; 高建波
Original assignee: Sichuan Hongding Drying Technology Development Co ltd
Current assignee: Sichuan Hongding Drying Technology Development Co ltd
Priority date: 2023-11-06
Filing date: 2023-11-06
Publication date: 2024-05-28
Anticipated expiration: 2033-11-06

Abstract

The utility model provides a smoke exhaust device, which relates to the field of smoke exhaust, and aims at solving the problem that the smoke exhaust device in the prior art is relatively complex to operate when being cleaned, and comprises the following components: a smoke outlet pipe; the heat exchange tube is sleeved outside the smoke outlet tube and forms an annular heat exchange channel with the smoke outlet tube; the exhaust fan is arranged on the smoke outlet pipe; the cleaning inlet pipe and the drain pipe are communicated with the side wall of the smoke outlet pipe and are respectively arranged at two opposite sides of the exhaust fan; and the water outlet pipe is connected with the side wall of the heat exchange pipe. The utility model is provided with the heat exchange tube, the heat exchange tube can be used as a source of clean water while fully recycling the heat of the flue gas, the water is introduced when the fan needs to be cleaned, the water enters the smoke outlet tube from the clean inlet tube, the self-cleaning can be realized by rotating the exhaust fan, and then the sewage is discharged from the sewage discharge tube, so that the cleaning operation is simple and convenient.

Description

Fume extractor

Technical Field

The utility model relates to the field of smoke exhaust, in particular to a smoke exhaust device.

Background

The combustion furnace generates a large amount of smoke in the fuel combustion process, and the smoke is extracted from the furnace body by the exhaust fan. With the long-term use of the exhaust fan, the impeller and the rotating suction surface of the exhaust fan can be covered with a layer of dirt, and the exhaust fan is difficult to clean. Patent publication No. CN219062019U discloses a fire control smoke exhaust fan, and its exhaust pipe dismantles simply, takes out the clearance easily. Patent publication No. CN218033200U discloses a biomass particle heating smoke exhaust structure capable of removing ash, which reserves an ash removing opening of an exhaust pipeline at the top of the exhaust pipeline and can clean most accumulated ash in the exhaust pipeline. Although the above patents can all play a certain effect of cleaning conveniently, the operation is still more complex.

Disclosure of utility model

The utility model aims to solve the problem that the smoke discharging device in the prior art is complicated to operate during cleaning.

The embodiment of the utility model is realized by the following technical scheme:

A smoke evacuation device comprising: a smoke outlet pipe; the heat exchange tube is sleeved outside the smoke outlet tube and forms an annular heat exchange channel with the smoke outlet tube; the exhaust fan is arranged in the smoke outlet pipe; the cleaning inlet pipe and the drain pipe are communicated with the side wall of the smoke outlet pipe and are respectively arranged at two opposite sides of the exhaust fan; and the water outlet pipe is connected with the side wall of the heat exchange pipe.

Preferably, the upper end of the cleaning inlet pipe is communicated with the upper side wall of the smoke outlet pipe.

Preferably, the upper end of the blow-down pipe is communicated with the lower side wall of the smoke outlet pipe.

Preferably, the lower side wall of the smoke outlet pipe is obliquely arranged to form an inclined section.

Preferably, the inclined section extends from the cleaning inlet pipe to the sewage pipe inlet at the orthographic projection of the lower side wall of the smoke outlet pipe.

Preferably, the method comprises the steps of: the motor is arranged on the outer wall of the heat exchange tube; the driving wheel is connected with an output shaft of the motor; the driven wheel is connected with the rotating shaft of the exhaust fan; the belt is sleeved on the driving wheel and the driven wheel; one end of the transmission pipe is communicated with the side wall of the smoke outlet pipe; the other end of the transmission tube is communicated with the side wall of the heat exchange tube; the belt passes through the inside of the drive tube.

Preferably, the heat exchange tube and the smoke outlet tube are provided with transparent parts for observing the exhaust fan.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

The utility model is provided with the heat exchange tube, the heat exchange tube can be used as a source of clean water while fully recycling the heat of the flue gas, the clean water is introduced when the fan needs to be cleaned, the water enters the smoke outlet tube from the clean inlet tube, the self-cleaning can be realized by rotating the exhaust fan, then the sewage is discharged from the sewage discharge tube, the cleaning operation is simple and convenient, an additional water tube structure and a pump structure are not needed, and the economical and economical effects are realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram a of a smoke exhaust device provided by the utility model;

fig. 2 is a schematic structural diagram b of the smoke exhaust device provided by the utility model;

fig. 3 is a schematic structural diagram c of the smoke exhaust device provided by the utility model;

Icon: the device comprises a smoke outlet pipe 1, a heat exchange pipe 2, a 3-exhaust fan, a 4-clean inlet pipe, a 5-blow-down pipe, a 6-water outlet pipe, a 7-motor, an 8-driving wheel, a 9-driven wheel, a 10-belt and an 11-transmission pipe.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of 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, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Example 1

As shown in fig. 1-2, a smoke evacuation device comprising: a smoke outlet pipe 1; the heat exchange tube 2 is sleeved outside the smoke outlet tube 1, and an annular heat exchange channel is formed between the heat exchange tube 2 and the smoke outlet tube 1; an exhaust fan 3, wherein the exhaust fan 3 is arranged in the smoke outlet pipe 1; the cleaning inlet pipe 4 and the sewage drain pipe 5 are communicated with the side wall of the smoke outlet pipe 1 and are respectively arranged at two opposite sides of the exhaust fan 3; and the water outlet pipe 6 is connected with the side wall of the heat exchange pipe 2.

In the specific implementation process, water and flue gas can be adopted for heat exchange. In fig. 1-2, the valve is shaded throughout to indicate that the valve is closed and shaded at both ends to indicate that the valve is open. Fig. 1 shows a non-cleaning state, the flue gas is discharged from the flue gas outlet pipe 1, water flows in from an annular heat exchange channel formed between the heat exchange pipe 2 and the flue gas outlet pipe 1, and after heat exchange, the water is discharged from the water outlet pipe 6. Fig. 2 is a cleaning state, after the valve of the sewage drain pipe 5 is closed, water is introduced, the water enters the smoke outlet pipe 1 from the annular heat exchange channel, the self-cleaning can be realized by starting the exhaust fan 3, and after the cleaning is finished, the valve of the sewage drain pipe 5 is opened, so that sewage is discharged. The heat exchange efficiency can be increased by adopting countercurrent heat exchange of water and flue gas. After the flue gas is discharged, the flue gas can also pass through a cyclone dust collector, a bag dust collector and a spray dust collector in sequence for dust removal.

In this embodiment, as shown in fig. 1-2, the upper end of the cleaning inlet pipe 4 is communicated with the upper side wall of the smoke outlet pipe 1.

In the specific implementation process, in order to make water easier to enter the smoke outlet pipe 1, the upper end of the cleaning inlet pipe 4 does not protrude from the side wall of the smoke outlet pipe 1, so that the water is prevented from being blocked.

In this embodiment, as shown in fig. 1-2, the upper end of the sewage drain pipe 5 is communicated with the lower side wall of the smoke outlet pipe 1.

In the specific implementation process, in order to drain the sewage from the sewage pipe 5 more easily, the sewage is avoided to remain, so the upper end of the sewage pipe 5 does not protrude from the side wall of the smoke outlet pipe 1, and the obstruction of the sewage is avoided.

In this embodiment, as shown in fig. 3, the lower sidewall of the smoke outlet pipe 1 is disposed obliquely to form an oblique section.

In the specific implementation process, in order to further avoid the residue of sewage in the smoke outlet pipe 1, the lower side wall of the smoke outlet pipe 1 is obliquely arranged, so that sewage can flow into the sewage discharge pipe 5 along an inclined plane.

In this embodiment, as shown in fig. 3, the inclined section extends from the front projection of the cleaning inlet pipe 4 on the lower side wall of the smoke outlet pipe 1 to the inlet of the sewage pipe 5.

In the specific implementation process, the upper end of the sewage drain pipe 5 is shown in fig. 3, and the left side is low, the right side is high, so that sewage can be prevented from remaining in the smoke outlet pipe 1 on the right side of the sewage drain pipe 5 to a certain extent.

As shown in fig. 1 to 3, this embodiment includes: a motor 7, wherein the motor 7 is arranged on the outer wall of the heat exchange tube 2; the driving wheel 8 is connected with the output shaft of the motor 7; the driven wheel 9 is connected with the rotating shaft of the exhaust fan 3; a belt 10, wherein the belt 10 is sleeved on the driving wheel 8 and the driven wheel 9; a transmission pipe 11, wherein one end of the transmission pipe 11 is communicated with the side wall of the smoke outlet pipe 1; the other end of the transmission pipe 11 is communicated with the side wall of the heat exchange pipe 2; the belt 10 passes through the inside of the transmission tube 11.

In the specific implementation process, water can be introduced into the smoke outlet pipe 1, so that a specific structure is arranged, the motor 7 is arranged externally, and damage to the motor 7 is avoided. The utility model adopts a belt 10 transmission device, and realizes the external driving of the exhaust fan 3 by the motor 7. The transfer tube 11 isolates the water in the heat exchange tube 2 from the belt 10.

In this embodiment, the heat exchange tube 2 and the smoke outlet tube 1 are provided with transparent portions for observing the exhaust fan 3.

The state of the exhaust fan 3 can be observed through the transparent part to judge whether cleaning is required or not. The transparent portion may be made of transparent plastic.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A smoke evacuation device, comprising:

A smoke outlet pipe (1);

The heat exchange tube (2) is sleeved outside the smoke outlet tube (1), and an annular heat exchange channel is formed between the heat exchange tube (2) and the smoke outlet tube (1);

an exhaust fan (3), wherein the exhaust fan (3) is arranged in the smoke outlet pipe (1);

The cleaning inlet pipe (4) and the blow-down pipe (5) are communicated with the side wall of the smoke outlet pipe (1) and are respectively arranged at two opposite sides of the exhaust fan (3);

The water outlet pipe (6), the water outlet pipe (6) is connected with the side wall of the heat exchange tube (2).

2. A smoke evacuation device according to claim 1, wherein the upper end of said cleaning inlet pipe (4) communicates with the upper side wall of said smoke outlet pipe (1).

3. A smoke evacuation device according to claim 2, wherein the upper end of said blow down pipe (5) communicates with the lower side wall of said smoke outlet pipe (1).

4. A smoke evacuation device as claimed in claim 3, characterised in that the lower side wall of the smoke outlet tube (1) is inclined to form an inclined section.

5. A smoke evacuation device according to claim 4, wherein said inclined section extends from the orthographic projection of said clean inlet pipe (4) at the lower side wall of said smoke evacuation pipe (1) to the inlet of said discharge pipe (5).

6. The smoke evacuation device of any one of claims 1-5, comprising:

The motor (7) is arranged on the outer wall of the heat exchange tube (2);

the driving wheel (8) is connected with an output shaft of the motor (7);

the driven wheel (9), the driven wheel (9) is connected with the rotating shaft of the exhaust fan (3);

The belt (10) is sleeved on the driving wheel (8) and the driven wheel (9);

One end of the transmission pipe (11) is communicated with the side wall of the smoke outlet pipe (1); the other end of the transmission pipe (11) is communicated with the side wall of the heat exchange pipe (2); the belt (10) passes through the inside of the transmission pipe (11).

7. A smoke evacuation device according to claim 6, wherein said heat exchange tube (2) and said smoke evacuation tube (1) are provided with transparent portions for viewing said suction fan (3).