CN214094941U

CN214094941U - Heat exchanger and biomass fuel fireplace with same

Info

Publication number: CN214094941U
Application number: CN202022055945.7U
Authority: CN
Inventors: 张家华
Original assignee: Cangzhou Fangzhou Metal Products Co ltd
Current assignee: Cangzhou Fangzhou Metal Products Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-08-31
Anticipated expiration: 2030-09-18

Abstract

The utility model provides a heat exchanger, including decorating the pulling-on piece, the deashing pulling-on piece, hot exchange pipe, first hot exchange pipe support and second hot exchange pipe support, hot exchange pipe is a plurality of two sides opening cylinder, run through first hot exchange pipe support through arranging the mounting hole on first hot exchange pipe support surface, first hot exchange pipe support surface has a rectangle opening and makes hot exchange pipe's one end expose, second hot exchange pipe support is installed perpendicularly and is had a rectangle opening as the flue gas entry on the upper surface below first hot exchange pipe support, only has a side, deashing pulling-on piece surface sets up the deashing hole, hot exchange pipe passes the installation of deashing hole, decorate the pulling-on piece and install in the deashing pulling-on piece outside. The biomass fuel fireplace comprises a smoke exhaust fan, an air inlet pipe, a burner, a furnace door, a blower, a discharging motor, a discharging pipe, a discharging auger, a smoke guide pipe, a storage cylinder, a pressure relief safety valve, a heat exchanger and a fire baffle plate.

Description

Heat exchanger and biomass fuel fireplace with same

Technical Field

The utility model relates to a biomass fuel fireplace technical field, especially a heat exchanger and have this heat exchanger's biomass fuel fireplace.

Background

Biomass fuel fireplaces are energy-saving heating devices which have been developed in europe and even china in recent years, and are favored by consumers with high combustion efficiency, intelligent operation and elegant appearance. However, the burner is small, the heat radiation conduction effect is limited, the indoor temperature rise is slow, and the fuel utilization rate is not high.

Disclosure of Invention

In order to overcome the above-mentioned problem that prior art exists, the utility model provides a heat exchanger and have this heat exchanger's biomass fuel fireplace, wherein the waste heat of the emission flue gas of heat exchanger make full use of biomass fireplace before the fireplace is escaped to the flue gas, increases the stroke in the fireplace, and cold air is leading-in through the hair-dryer, gets into heat exchanger, releases indoor fast again after the heating.

An object of the utility model is to provide a heat exchanger (12), include:

the heat exchange tube comprises a decoration pulling sheet (12-1), an ash removal pulling sheet (12-2), heat exchange tubes (12-3), a first heat exchange tube support (12-4) and a second heat exchange tube support (12-5), wherein the heat exchange tubes (12-3) are cylinders with openings on two sides, the first heat exchange tube support (12-4) is penetrated through mounting holes arranged on the surface of the first heat exchange tube support (12-4), one end of each heat exchange tube (12-3) is exposed due to the fact that a rectangular opening is formed in the surface of the first heat exchange tube support (12-4), the second heat exchange tube support (12-5) is vertically installed below the first heat exchange tube support (12-4), and the upper surface of the second heat exchange tube support (12-5) is provided with a rectangular opening as a flue gas inlet, the heat exchanger is provided with only one side face, the bottom of the side face is clamped with the decorative pull tab (12-1), the surface of the ash removal pull tab (12-2) is provided with ash removal holes corresponding to the mounting holes on the surface of the first heat exchange tube bracket (12-4), the heat exchange tubes (12-3) are mounted through the ash removal holes, the decorative pull tab (12-1) is mounted on the outer side of the ash removal pull tab (12-2), the ash removal pull tab (12-2) is used for regularly removing furnace ash on the heat exchange tubes in the fireplace using process, and the heat exchanger (12) can keep higher heat exchange efficiency.

Preferably, two oblique side edges which are connected in an obtuse angle mode are arranged at the bottom of the side face of the second heat exchange tube support (12-5), and the oblique side edges are connected with the decoration pulling piece (12-1) in a clamping mode.

Preferably, the diameter of the heat exchange tube (12-3) is 20-25MM, so that the problems of overlarge wind resistance and poor smoke discharge of a fireplace are prevented.

It is also an object of the invention to provide a biomass fuel fireplace having a heat exchanger comprising:

the device comprises a smoke exhaust fan (1), an air inlet pipe (2), a combustor (3), a furnace door (4), a blower (5), a blanking motor (6), a blanking pipe (7), a blanking auger (8), a smoke guide pipe (9), a storage barrel (10), a heat exchanger (12) and a fire baffle plate (15), wherein the smoke exhaust fan (1) generates a wind field, one end of the smoke exhaust fan is provided with an air outlet, the air outlet is connected with a chimney, the blanking auger (8) is rotationally connected with the combustor (3) and is used for conveying granular fuel into the combustor (3), a combustion chamber is arranged above the combustor (3), smoke generated in the combustion chamber enters the heat exchanger (12) through the fire baffle plate (15), the heat exchanger (12) is connected with the smoke guide pipe (9), and the lower end of the smoke guide pipe (9) is hermetically connected with the smoke exhaust fan (1), air passes through air-supply line (2) gets into in combustor (3), furnace gate (4) set up biomass burning fireplace one side, hair-dryer (5) with unloading motor (6) link to each other, hair-dryer (5) one side orientation of blowing down feed pipe (7), unloading motor (6) drive hair-dryer (5) make the material go into through unloading pipe (7) down in combustor (3), storage cylinder (10) are connected on the top of unloading pipe (7), store the material in storage cylinder (10), heat exchanger (12) are installed keep off hot plate (15) top.

Preferably, the biomass fuel fireplace further comprises a pressure-reducing safety valve (11), and the pressure-reducing safety valve (11) can be opened when the pressure of the combustion chamber in the inner cavity of the biomass fuel fireplace is too high, smoke can overflow, the pressure in the combustion chamber can be reduced, and the furnace door (4) and electric appliances inside the biomass fuel fireplace can be protected.

Preferably, the biomass fuel fireplace further comprises an ash removal rod (13), wherein the ash removal rod (13) vertically penetrates through the inner cavity of the biomass fuel fireplace, and the top of the ash removal rod is in a ball head shape.

Preferably, the dust removing device further comprises an upper cover (14), the bottom surface of the upper cover (14) is abutted to the bulb-shaped part of the dust removing rod (13), and the upper cover (14) is in a screen shape.

Preferably, the heat exchanger (12) is connected with the combustion chamber, smoke above the combustor (3) enters the heat exchanger (12) firstly, heat exchange tubes (12-3) surrounding the heat exchanger (12) heat the heat exchange tubes (12-3), and cool air inside the heat exchange tubes is heated to be changed into hot air which is accelerated to be discharged into the chamber under the action of the blower (5).

Preferably, the oven door (4) is a glass oven door.

Preferably, a water jacket is further included, which surrounds the outside of the heat exchange tubes (12-3) or is used in place of the heat exchange tubes (12-3).

The utility model has the advantages that:

1. the thermal efficiency of the fireplace is improved.

2. The functions of the fireplace are increased, the selling points are increased, and the economic benefit is improved.

3. The indoor temperature rising speed is improved.

4. Reduce pollutant discharge and protect environment.

5. The utilization rate of the fuel is improved, and the fuel is saved.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Brief description of the drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic view of a heat exchanger assembly according to an embodiment of the present invention;

FIG. 2 is an exploded view of the components of a heat exchanger according to an embodiment of the present invention;

FIG. 3 is a sectional view of an air path of a particle fireplace in accordance with an embodiment of the present invention;

FIG. 4 is a block diagram of a particle fireplace in accordance with an embodiment of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the present invention is not limited thereto.

Referring to fig. 1-2, a heat exchanger 12 of the present embodiment includes: the heat exchange tube comprises a decorative pulling sheet 12-1, an ash removal pulling sheet 12-2, heat exchange tubes 12-3, a first heat exchange tube support 12-4 and a second heat exchange tube support 12-5, wherein the heat exchange tubes 12-3 are cylinders with openings on two sides, the first heat exchange tube support 12-4 penetrates through mounting holes formed in the surface of the first heat exchange tube support 12-4, a rectangular opening is formed in the surface of the first heat exchange tube support 12-4 to expose one end of each heat exchange tube 12-3, the second heat exchange tube support 12-5 is vertically arranged below the first heat exchange tube support 12-4, a rectangular opening is formed in the upper surface of the second heat exchange tube support 12-5 to serve as a smoke inlet, only one side face is provided, the bottom of the side face is clamped with the decorative pulling sheet 12-1, and the surface of the ash removal pulling sheet 12-2 is arranged on the surface of the first heat exchange tube support 12-4 and corresponds to the mounting holes The heat exchanger 12 can keep higher heat exchange efficiency by cleaning the ash hole, the heat exchange tube 12-3 is installed by penetrating the ash hole, the decorative pulling-on piece 12-1 is installed at the outer side of the ash cleaning pulling-on piece 12-2, the ash cleaning pulling-on piece 12-2 cleans the furnace ash on the heat exchange tube at regular time in the process of using the fireplace. The bottom of the side surface of the second heat exchange tube bracket 12-5 is provided with two oblique side edges which are connected in an obtuse angle, and the oblique side edges are clamped with the decorative pulling-on piece 12-1. The diameter of the heat exchange tube 12-3 is 20-25MM, so that the problems of overlarge wind resistance and unsmooth smoke discharge of a fireplace are prevented.

The working principle is as follows:

1. as shown in figure 1, the heat exchanger is assembled, flue gas in the combustion chamber of the fireplace enters the heat exchanger 12 through the flue gas inlet to heat cold air, then the flue gas enters the smoke exhaust pipe at the flue gas escape port, and the cold air is exhausted into the chamber at the hot air position after being heated. The heat exchange process is completed.

2. Ash removal effect of heat exchanger on biomass fireplace

As shown in the assembly diagram of the heat exchange device in fig. 1, in the process of the flue gas and dust traveling in the heat exchanger, the temperature of the flue gas and dust is reduced because the heat exchange tube is continuously passed by cold air, and the movement rate of microscopic particles of the flue gas and dust is rapidly reduced, so that the microscopic particles of the flue gas and dust are attached to the surface of the heat exchange tube. The heat exchanger device takes this factor into account, and is provided with an ash removal pull sheet as shown in a part diagram of the heat exchanger device in FIG. 2. The heat exchanger can keep high heat exchange efficiency as long as furnace dust on the heat exchange tubes is cleaned regularly during the use of the fireplace. Meanwhile, the furnace dust falls into the furnace body, so that the environment is not polluted, and the pollutant emission of the fireplace can be reduced on the whole as long as the fireplace is cleaned regularly and cleaned, so that the effect of protecting the environment is achieved.

In use, attention is required:

1. the heat exchange tube is not too thin and should have a diameter of 20-25MM to prevent too much wind resistance and poor smoke discharge of the fireplace.

2. The dust is removed in time, and the heat conduction effect is ensured.

3. As shown in figure 1, the proportion of the flue gas inlet and the flue gas escape opening is consistent, and the smoothness of smoke discharge is ensured.

4. The welding air tightness is ensured, and smoke can not leak.

Referring to fig. 3-4, the biomass fuel fireplace with heat exchanger of the present embodiment includes: the biomass fuel production device comprises a smoke exhaust fan 1, an air inlet pipe 2, a combustor 3, a furnace door 4, a blower 5, a blanking motor 6, a blanking pipe 7, a blanking auger 8, a smoke guide pipe 9, a storage cylinder 10, a heat exchanger 12 and a fire baffle plate 15, wherein the smoke exhaust fan 1 generates a wind field, one end of the wind field is provided with an air outlet which is connected with a chimney, the blanking auger 8 is rotatably connected with the combustor 3 and used for conveying granular fuel into the combustor 3, a combustion chamber is arranged above the combustor 3, smoke generated in the combustion chamber enters the heat exchanger 12 through the fire baffle plate 15, the heat exchanger 12 is connected with the smoke guide pipe 9, the lower end of the smoke guide pipe 9 is hermetically connected with the smoke exhaust fan 1, air enters the combustor 3 through the air inlet pipe 2, the furnace door 4 is arranged at one side of a biomass combustion fireplace, the blower 5 is connected with the blanking motor 6, the blowing side of the blower 5 faces to the lower material pipe 7, the blanking motor 6 drives the blower 5 to enable the material to be fed into the combustor 3 through the blanking pipe 7, the top end of the blanking pipe 7 is connected with a storage barrel 10, materials are stored in the storage barrel 10, and a heat exchanger 12 is arranged above the fire baffle 15. The biomass fuel fireplace further comprises a pressure-reducing safety valve 11, wherein the pressure-reducing safety valve 11 can be opened when the pressure of a combustion chamber in the inner cavity of the biomass fuel fireplace is too high, smoke overflows, the pressure in the combustion chamber is reduced, and the furnace door 4 and electric appliances inside the biomass fuel fireplace are protected. The biomass fuel fireplace also comprises an ash removing rod 13, wherein the ash removing rod 13 vertically penetrates through the inner cavity of the biomass fuel fireplace, and the top of the ash removing rod 13 is in a ball head shape. The ash removing device also comprises an upper cover 14, the bottom surface of the upper cover 14 is abutted with the bulb-shaped part of the ash removing rod 13, and the upper cover 14 is in a sieve shape. The heat exchanger 12 is connected with the combustion chamber, the flue gas above the burner 3 firstly enters the heat exchanger 12, the heat exchange pipe 12-3 of the heat exchanger 12 is surrounded, the heat exchange pipe 12-3 is heated, meanwhile, the cold air in the heat exchange pipe is changed into hot air, and the hot air is accelerated to be discharged into the chamber under the action of the blower 5. The oven door 4 is a glass oven door. Of course, a water jacket may also be employed as a second alternative, surrounding the outside of the heat exchange tubes 12-3 or used in place of the heat exchange tubes 12-3.

The working principle is as follows:

1. normal combustion process of biomass fireplace

Referring to the structure diagram of the biomass fireplace in fig. 4, the smoke exhaust fan 1 is started to work, the blanking auger 8 rotates to convey the granular fuel to the burner 3, the ignition tube works to ignite the granular fuel in the burner 3, the biomass fireplace starts to work normally, smoke is generated in the combustion chamber above the burner 3, the smoke passes through the fire baffle plate 15, enters the heat exchanger 12, then enters the smoke guide tube 9, the lower end of the smoke guide tube 9 is hermetically connected with the smoke exhaust fan 1, and is discharged into a chimney leading to the outside.

2. Working process of heat exchanger

As shown in the structure diagram of the biomass fireplace in figure 4, when the temperature of the furnace body of the fireplace reaches more than 120 ℃, the circuit board indicates 5 that the blower starts to work. As shown in FIG. 3, the biomass fireplace air path is shown in cross-section, and the cold fraction is delivered to the heat exchanger tubes of heat exchanger 12 by a blower. Because the heat exchanger 12 is connected with the combustion chamber, the smoke above the combustor firstly enters the heat exchanger 12, surrounds the heat exchange pipe 12-3 of the heat exchanger 12, heats the heat exchange pipe 12-3, simultaneously heats the cold air in the heat exchange pipe to be changed into hot air, and is accelerated to be discharged into the chamber under the action of the blower.

The embodiment has the advantages of simple structure, convenient operation, cost saving and obvious effect, and simultaneously improves the heat efficiency of the fireplace, reduces the pollutant discharge and protects the environment.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by applying specific examples, and the descriptions of the above embodiments are only applicable to help understanding the principles of the embodiments of the present invention; meanwhile, the detailed description and the application scope of the embodiments of the present invention can be changed by those skilled in the art, and in summary, the content of the present description should not be construed as limiting the present invention.

Claims

1. A heat exchanger (12), characterized by comprising:

the heat exchange tube comprises a decoration pulling sheet (12-1), an ash removal pulling sheet (12-2), heat exchange tubes (12-3), a first heat exchange tube support (12-4) and a second heat exchange tube support (12-5), wherein the heat exchange tubes (12-3) are cylinders with openings on two sides, the first heat exchange tube support (12-4) is penetrated through mounting holes arranged on the surface of the first heat exchange tube support (12-4), one end of each heat exchange tube (12-3) is exposed due to the fact that a rectangular opening is formed in the surface of the first heat exchange tube support (12-4), the second heat exchange tube support (12-5) is vertically installed below the first heat exchange tube support (12-4), and the upper surface of the second heat exchange tube support (12-5) is provided with a rectangular opening as a flue gas inlet, the dust removing device is provided with only one side face, the bottom of the side face is clamped with the decorative pull piece (12-1), the surface of the dust removing pull piece (12-2) is provided with dust removing holes corresponding to the mounting holes in the surface of the first heat exchange tube support (12-4), the heat exchange tube (12-3) penetrates through the dust removing holes to be mounted, the decorative pull piece (12-1) is mounted on the outer side of the dust removing pull piece (12-2), and the dust removing pull piece (12-2) is used for regularly removing furnace dust on the heat exchange tube in the fireplace using process.

2. A heat exchanger (12) as set forth in claim 1, wherein: and two oblique side edges which are connected at an obtuse angle are arranged at the bottom of the side surface of the second heat exchange tube bracket (12-5), and the oblique side edges are connected with the decorative pulling sheet (12-1) in a clamping manner.

3. A heat exchanger (12) as set forth in claim 1, wherein: the diameter of the heat exchange tube (12-3) is 20-25 MM.

4. A biomass fuel fireplace having a heat exchanger (12) as set forth in any one of claims 1-3, characterized by comprising:

5. The biomass fuel fireplace of claim 4, wherein: the biomass fuel fireplace further comprises a pressure-reducing safety valve (11), wherein the pressure-reducing safety valve (11) can be opened when the pressure of the combustion chamber in the inner cavity of the biomass fuel fireplace is too high, smoke can overflow, the pressure in the combustion chamber is reduced, and the furnace door (4) and electric appliances inside the biomass fuel fireplace are protected.

6. The biomass fuel fireplace of claim 4, wherein: the biomass fuel fireplace further comprises a dust removing rod (13), wherein the dust removing rod (13) vertically penetrates through the inner cavity of the biomass fuel fireplace, and the top of the dust removing rod is in a ball head shape.

7. The biomass fuel fireplace of claim 6, wherein: the ash removing device is characterized by further comprising an upper cover (14), the bottom surface of the upper cover (14) is abutted to the ball-head-shaped part of the ash removing rod (13), and the upper cover (14) is in a screen shape.

8. The biomass fuel fireplace of claim 4, wherein: the heat exchanger (12) is connected with the combustion chamber, smoke above the combustor (3) enters the heat exchanger (12) firstly, heat exchange pipes (12-3) surrounding the heat exchanger (12) heat the heat exchange pipes (12-3), cold air inside the heat exchange pipes is heated to be changed into hot air, and the hot air is accelerated to be discharged into the chamber under the action of the blower (5).

9. The biomass fuel fireplace of claim 4, wherein: the furnace door (4) is a glass furnace door.

10. The biomass fuel fireplace of claim 4, wherein: and a water jacket surrounding the outside of the heat exchange tubes (12-3) or used in place of the heat exchange tubes (12-3).