CN220436571U - Air flow exchanging system of fireplace - Google Patents

Abstract

The utility model discloses an air flow exchange system of a fireplace, which is technically characterized by comprising a combustion chamber and an exhaust pipe, wherein a blowing fresh air pipe is mounted on the back surface of the combustion chamber in a fitting way, a heat exchange chamber is mounted on the top of the combustion chamber, and an outlet of the fresh air pipe is communicated with the heat exchange chamber to heat fresh air; the heat exchange chamber comprises an airflow conversion cabin, a plurality of main heat pipes and a plurality of auxiliary heat pipes, the main heat pipes are communicated with the airflow conversion cabin and the combustion chamber, the auxiliary heat pipes are communicated with the airflow conversion cabin and an exhaust pipe, and the exhaust pipe is provided with an exhaust fan; the export of new tuber pipe is towards leading heat pipe and vice heat pipe in order to realize the new trend heating, has the clearance that supplies the new trend to circulate between leading heat pipe and the vice heat pipe, adopts the mode of vice heat pipe backward flow heating new trend air current for the heat conduction of waste gas reaches the purpose of reutilization, has promoted the heat energy utilization ratio of exhaust waste gas, reaches energy-concerving and environment-protective effect.

Description

Air flow exchanging system of fireplace

Technical Field

The present utility model relates to a fire fireplace, and more particularly to an air flow exchange system for a fireplace.

Background

The true fire fireplace uses wood, fuel particles to generate heat and transfer the hot gases into the room.

The patent is applied to a Chinese patent document with the application number of CN2007201144301, and the patent name of the Chinese patent document is a closed fireplace; the specification states that the exhaust pipe continuously works to discharge the waste gas generated by combustion out of the room, at the moment, the hot air pipe at the outlet of the blowing pipe is heated, the blowing wheel 9 rotates to suck air, the first heating is finished through the contact between the outer wall of the exhaust pipe and the front plate of the hearth, the second heating is finished through the inner wall of the hot air pipe, and finally the waste gas is discharged from the outlet of the blowing pipe, so that the indoor air temperature is increased. "

In the technical scheme, the hot air in the hot air pipe is heated only by the airflow supplied to the blowing pipe for one time, and then is discharged as tail gas, a large amount of heat energy still remained in the tail gas is discharged, and the direct discharge design ensures that the heat energy loss is large and the energy-saving effect is low.

Disclosure of Invention

The utility model aims to provide an air flow exchange system of a fireplace, which adopts a mode of heating fresh air flow by a secondary heat conduction pipe in a backflow way, so that the aim of secondary utilization of heat conduction of waste gas is fulfilled, the heat energy utilization rate of discharged waste gas is improved, and the effects of energy conservation and environmental protection are achieved.

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

the air flow exchange system of the fireplace comprises a combustion chamber and an exhaust pipe, wherein a fresh air pipe for blowing air is attached to the back surface of the combustion chamber, and a heat exchange chamber is arranged at the top of the combustion chamber; the heat exchange chamber comprises an airflow conversion cabin, a plurality of main heat pipes and a plurality of auxiliary heat pipes, the main heat pipes are communicated with the airflow conversion cabin and the combustion chamber, the auxiliary heat pipes are communicated with the airflow conversion cabin and an exhaust pipe, and the exhaust pipe is provided with an exhaust fan; the outlet of the new air pipe faces the main heat pipe and the auxiliary heat pipe to realize fresh air heating, and a gap for fresh air circulation is arranged between the main heat pipe and the auxiliary heat pipe.

Preferably, the main heat pipe and the sub heat pipe are mounted with a plurality of heat radiating fins arranged along a length direction of the main heat pipe and the sub heat pipe.

Preferably, the number of fins is 4, and the pitch between adjacent fins is the same.

Preferably, two sides of the combustion chamber are provided with an air outlet branch pipe, the air outlet branch pipe is connected with the air flow conversion cabin and the exhaust pipe, and the auxiliary heat conduction pipe is sequentially communicated with the air outlet branch pipe and the exhaust pipe.

Preferably, the air outlet branch pipe is attached to the fresh air pipe.

Preferably, the main heat pipe is located at the middle position of the airflow conversion cabin, the auxiliary heat pipes are located at two sides of the main heat pipe, and a separation plate for separating a plurality of main heat pipes is fixed in the airflow conversion cabin and divides the airflow conversion cabin into 2 cabins.

Preferably, the main heat pipe and the auxiliary heat conduction are equally divided into 2 cabins by the partition plate.

Preferably, the upper end of the air outlet branch pipe is fixedly provided with an inclined plate, the inclined plate is positioned in the combustion chamber, and the inclined plates on two sides incline towards the main heat pipe to guide heat flow into the main heat pipe.

Preferably, the sloping plate is located at the boundary of the main heat pipe and the auxiliary heat pipe.

Preferably, the outlet of the new air pipe is provided with a splitter plate for splitting the air flow into an upper air flow and a lower air flow, and the lower air flow faces the main heat pipe and the auxiliary heat pipe; an upper warm air pipe is arranged above the airflow conversion cabin, the top plate of the airflow conversion cabin is the pipe wall of the upper warm air pipe, one end of the upper warm air pipe is communicated with the upper air flow, and the other end of the upper warm air pipe is positioned above the radiating fins.

In summary, the utility model has the following beneficial effects:

(1) In the design, hot gas in the combustion chamber flows upwards to flow into the main gas guide pipe, then enters the auxiliary gas guide pipe through the gas flow conversion cabin, and then the auxiliary gas guide pipe discharges the burnt waste gas outwards through the exhaust pipe; the fresh air to be heated flows through the outer walls of the main air duct and the auxiliary air duct to realize heat exchange, so that the temperature of the air flow is increased, the air flow flows indoors, and the indoor temperature increase is accelerated; the advantage of this design lies in utilizing the secondary heat source of waste gas, because waste gas carries out its temperature after once heat exchange when flowing through leading heat pipe higher, and the backward flow of rethread auxiliary air duct carries out secondary heat exchange for the heat exchange efficiency of waste gas promotes, has promoted energy utilization.

Furthermore, the airflow conversion cabin is provided with a large amount of heat energy, the fresh air airflow is divided into two parts, and the upper air flow is subjected to heat exchange through the top of the airflow conversion cabin, so that the three-stage heat exchange is completed, and the heat energy exchange efficiency is greatly improved.

(2) The plurality of cooling fins are arranged on the main air duct and the auxiliary air duct, so that the efficiency of fresh air heat exchange is improved.

(3) In the design, the fresh air pipe is positioned at the back of the combustion chamber, the heat exchange chamber is positioned at the top of the combustion chamber, and the two air outlet branch pipes are positioned at the two sides of the combustion chamber, so that the fireplace is covered by the interlayer except the front window and the bottom of the perspective window, and the two sides, the top and the back of the fireplace are provided with the heat insulation cabin, so that the heat energy can be prevented from being directly radiated through the outer wall of the fireplace, the heat energy is conveniently concentrated in the heat exchange chamber, and the fresh air can be conveniently and rapidly heated and spread all around;

secondly, the design of the heat insulation cabin avoids the fact that the side, top and back of the fireplace are too high in temperature, and a user is not easy to scald the body when touching the fireplace unintentionally.

(4) The inclined plate of bronchus plays the water conservancy diversion effect, because leading trachea and vice air duct are densely arranged in combustion chamber top, the design of inclined plate can be with the hot gas flow quick drainage in the combustion chamber leading trachea to vice to the exhaust pipe that the air duct flows out also can be quick flow can accelerate heat exchange in the blast pipe.

(5) The separation plate of the airflow conversion cabin stabilizes the exchange efficiency of fresh air, the auxiliary air guide pipe is positioned at two sides of the main air guide pipe, waste gas is split into 2 flows through the action of the separation plate, 2 flows of stable annular airflows are realized, and the fresh air flowing through the radiator is similar in temperature in left and right 2 flows.

If the partition plate is not arranged, the air flow in the air flow conversion cabin can cause unstable air flow of a plurality of auxiliary air ducts, and the temperature of the air flow passing through the radiating fins is unbalanced, so that the technical problem is effectively solved by the partition plate.

Drawings

FIG. 1 is a schematic view of a fireplace construction in an embodiment;

FIG. 2 is a schematic view of the positional relationship of a heat sink and an air-flow conversion chamber in a fireplace in an embodiment;

FIG. 3 is a schematic view showing the positional relationship of a fireplace back blower, an air inlet pipe and an air outlet pipe in an embodiment;

FIG. 4 is a schematic diagram of the positional relationship between the fresh air duct and the airflow conversion module and the heat sink according to the embodiment;

FIG. 5 is a schematic view showing the positional relationship of the partition plate after the airflow conversion chamber is opened in the embodiment;

FIG. 6 is a schematic diagram of the flow of hot gas from the combustion chamber to the outlet manifold in an embodiment.

In the figure:

1. a combustion chamber; 11. an air inlet pipe; 12. a back plate;

2. a heat exchange chamber; 21. an airflow conversion cabin; 22. a partition plate; 23. a main heat pipe; 24. a secondary heat pipe;

31. a new air pipe; 32. a blowing machine;

41. an exhaust pipe; 42. an exhaust fan;

5. an outlet branch pipe; 51. a sloping plate;

6. a heat sink;

71. a diverter plate; 72. and (5) a warm air pipe is arranged.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

In an embodiment, referring to fig. 1 to 3, an air flow exchanging system of a fireplace comprises a combustion chamber 1 and an exhaust pipe 41, wherein a transparent window is arranged in front of the combustion chamber 1, an air flow conversion chamber 21 is arranged at the upper end of the combustion chamber 1, a cooling fin 6 is arranged below the air flow conversion chamber 21, and an air flow is heated by the cooling fin 6 and then flows to the front of the fireplace.

A backboard 12 is fixed on the back of the combustion chamber 1, and the backboard 12 is a metal plate; an air inlet pipe is arranged on the back of the combustion chamber 1, the air inlet pipe 11 is arranged at the bottom of the combustion chamber 1, air is supplied into the combustion chamber 1 through the air inlet pipe 11 to be flame-retardant, an exhaust pipe is arranged on the back of the combustion chamber 1, an exhaust pipe 41 is provided with an exhaust fan 42, and the exhaust fan 42 is used for exhausting combustion waste gas in combustion out of the chamber through an externally connected pipeline.

Obviously, the air inlet pipe, the combustion chamber 1 and the exhaust pipe 41 form an airflow pipeline, and the design mainly designs the airflow pipeline from the combustion chamber 1 to the exhaust pipe 41, so that the heat exchange efficiency of the waste gas and the fresh air is improved, and the specific structure is as follows.

Referring to fig. 4, a fresh air pipe 31 for blowing air is attached to the back surface of the combustion chamber 1, the fresh air pipe 31 is a rectangular pipe body, the rectangular pipe body is attached to the back plate 12, a blower 32 is mounted below the fresh air pipe 31, and the blower 32 allows external air to flow in and out of the fresh air pipe 31 and then flows out from the upper end of the fresh air pipe 31.

Referring to fig. 4 to 6, a heat exchange chamber 2 is installed at the top of the combustion chamber 1, and an outlet of a fresh air pipe 31 is communicated with the heat exchange chamber 2 to heat fresh air;

the outlet of the new air pipe 31 is provided with a splitter plate 71, the splitter plate 71 divides the air flow into an upper air flow and a lower air flow, the flow directions of the upper air flow and the lower air flow are the same, and the upper air flow is positioned above the lower air flow.

The outlet of the new air pipe 31 is arranged on the side of the vehicle, the flow dividing plate 71 is an L-shaped plate, and the flow dividing plate 71 fixes the outer wall of the airflow conversion cabin 21 at the outlet position;

the heat exchange chamber 2 comprises an airflow conversion cabin 21, a plurality of main heat pipes 23, a plurality of auxiliary heat pipes 24 and cooling fins 6;

the lower air flow is directed to the main heat pipe 23 and the auxiliary heat pipe 24 and the heat radiating fin 6; an upper warm air pipe 72 is arranged above the airflow conversion cabin 21, the upper warm air pipe 72 is communicated with the outlet of the fresh air pipe 31, and the upper warm air pipe 72 is used for flowing upper air flow.

The top plate of the airflow conversion cabin 21 is the pipe wall of the upper warm air pipe 72, the upper air flow can complete heat exchange when passing through the top plate of the airflow conversion cabin 21, a large amount of combustion waste gas is arranged in the airflow conversion cabin 21, the temperature of the top plate of the airflow conversion cabin 21 is higher, and the top plate of the airflow conversion cabin 21 is a metal plate; one end of the upper warm air pipe 72 is communicated with the upper air flow, and the other end of the upper warm air pipe 72 is positioned above the radiating fins 6 and is also an air outlet end of the upper warm air pipe 72.

The air outlet end of the upper warm air pipe 72 is just above the cooling fins 6, so that the flow direction of the hot air flowing out of the upper warm air pipe 72 is just the same as the flow direction of the hot air flowing out between the cooling fins 6; in fig. 4, the surface of the airflow conversion cabin 21 facing the air outlet end of the upper warm air pipe 72 is a downward inclined surface, so that the hot air flow of the upper warm air pipe 72 flows downwards, and the hot air flow of the upper warm air pipe 72 and the radiating fins 6 flow out to be just closely arranged up and down.

In the present design, there are 20 main heat pipes 23, and 12 sub heat pipes 24. Along the outlet direction of the fresh air pipe 31, the main heat pipe 23 and the auxiliary heat pipe 24 are arranged in a staggered manner, and the design ensures that the blown air flow of the fresh air pipe 31 can be fully contacted with the main heat pipe 23 or the auxiliary heat pipe 24.

The main heat pipe 23 and the auxiliary heat pipe 24 are metal round pipes, and the main heat pipe 23 and the auxiliary heat pipe 24 are vertically arranged;

the main heat pipe 23 is communicated with the airflow conversion cabin 21 and the combustion chamber 1, the auxiliary heat pipe 24 is communicated with the airflow conversion cabin 21 and the exhaust pipe 41, and the outlet of the fresh air pipe 31 faces the main heat pipe 23 and the auxiliary heat pipe 24 to realize fresh air heating;

a gap for fresh air to circulate is arranged between the main heat pipe 23 and the auxiliary heat pipe 24. The main heat pipe 23 and the sub heat pipe 24 are mounted with 4 heat radiating fins 6, and the heat radiating fins 6 are arranged along the length direction of the main heat pipe 23 and the sub heat pipe 24; the number of fins 6 is 4, and the pitch between adjacent fins 6 is the same.

The cooling fin 6 is arranged at the outlet position of the fresh air pipe 31, so that the temperature of the air flow is raised after the fresh air blown out by the fresh air pipe 31 contacts with the cooling fin 6, and the effect of air flow temperature rise is achieved.

The main heat pipe 23 is positioned in the middle of the airflow conversion chamber 21, the auxiliary heat pipes 24 are positioned on two sides of the main heat pipe 23, the division plate 22 for separating 20 main heat pipes 23 is fixed in the airflow conversion chamber 21, the division plate 22 divides the airflow conversion chamber 21 into 2 chambers, the main heat pipe 23 and the auxiliary heat pipes 24 are equally divided into 2 chambers by the division plate 22, and 10 main heat pipes 23 and 6 auxiliary heat pipes 24 are arranged in 1 chamber.

The air flow in the combustion chamber 1 enters the air flow conversion chamber 21 through the main heat pipe 23, and the air flow conversion chamber 21 is divided into 2 chambers, so that the air flow in the air flow conversion chamber 21 is split to the left and right 2 sides respectively, and enters the air outlet branch pipes 5 on both sides respectively.

The 2 air outlet branch pipes 5 are positioned at two sides of the combustion chamber 1, the air outlet branch pipes 5 are connected with the air flow conversion cabin 21 and the exhaust pipe 41, the auxiliary heat conduction pipe 24 is sequentially communicated with the air outlet branch pipes 5 and the exhaust pipe 41, and the air outlet branch pipes 5 are attached to the new air pipe 31 for arrangement.

The upper end of the air outlet branch pipe 5 is fixed with an inclined plate 51, the inclined plate 51 is positioned in the combustion chamber 1, and the inclined plates 51 on two sides incline towards the main heat pipe 23 to realize the heat flow entering the main heat pipe 23. The sloping plate 51 is located at the boundary between the main heat pipe 23 and the sub heat pipe 24, so that the exhaust gas of the gas flow conversion chamber 21 can flow through the sloping plate 51 to enter the gas outlet branch pipe 5 quickly.

Referring to fig. 6, the principle of operation is: the burnt hot waste gas is guided by the inclined plate 51 and quickly enters the main air pipe, and the heated main air pipe heats the air flow blown out by the fresh air pipe 31;

the hot waste gas in the main gas pipe enters the auxiliary gas pipes at the two sides through the split flow of the partition plate 22, and the heated auxiliary gas pipes heat the air flow blown out by the fresh air pipe 31;

the hot exhaust gas flowing out of the auxiliary air duct is led to the bottom of the fireplace through the air outlet branch pipe 5 on the side 2, and then the hot exhaust gas is discharged through the air outlet pipe 41 after the air outlet branch pipe 5 is connected with the air outlet pipe 41.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (10)

1. An air flow exchanging system of a fireplace, comprising a combustion chamber (1) and an exhaust pipe (41), characterized in that: the back of the combustion chamber (1) is provided with a blowing fresh air pipe (31) in a bonding way, and the top of the combustion chamber (1) is provided with a heat exchange chamber (2);

the heat exchange chamber (2) comprises an airflow conversion cabin (21), a plurality of main heat conduction pipes (23) and a plurality of auxiliary heat conduction pipes (24), wherein the main heat conduction pipes (23) are communicated with the airflow conversion cabin (21) and the combustion chamber (1), the auxiliary heat conduction pipes (24) are communicated with the airflow conversion cabin (21) and the exhaust pipe (41), and the exhaust pipe (41) is provided with an exhaust fan (42);

the outlet of the fresh air pipe (31) faces the main heat pipe (23) and the auxiliary heat conduction pipe (24) to heat fresh air, and a gap for fresh air circulation is arranged between the main heat pipe (23) and the auxiliary heat conduction pipe (24).

2. An air flow exchange system for a fireplace as claimed in claim 1, wherein: the main heat pipe (23) and the sub heat pipe (24) are provided with a plurality of heat radiating fins (6), and the heat radiating fins (6) are arranged along the length direction of the main heat pipe (23) and the sub heat pipe (24).

3. An air flow exchange system for a fireplace as claimed in claim 2, wherein: the number of the radiating fins (6) is 4, and the intervals between the adjacent radiating fins (6) are the same.

4. An air flow exchange system for a fireplace as claimed in claim 1, wherein: the two sides of the combustion chamber (1) are provided with an air outlet branch pipe (5), the air outlet branch pipe (5) is connected with the air flow conversion cabin (21) and the exhaust pipe (41), and the auxiliary heat conducting pipe (24) is sequentially communicated with the air outlet branch pipe (5) and the exhaust pipe (41).

5. An air flow exchange system for a fireplace as claimed in claim 4, wherein: the air outlet branch pipe (5) is attached to the new air pipe (31).

6. An air flow exchange system for a fireplace as claimed in claim 1, wherein: the main heat pipe (23) is positioned in the middle of the airflow conversion cabin (21), the auxiliary heat pipes (24) are positioned on two sides of the main heat pipe (23), the partition plates (22) for separating the plurality of main heat pipes (23) are fixed in the airflow conversion cabin (21), and the partition plates (22) divide the airflow conversion cabin (21) into 2 cabins.

7. An air flow exchange system for a fireplace as claimed in claim 6, wherein: the main heat pipe (23) and the auxiliary heat conduction are equally divided into 2 cabins by the partition plate (22).

8. An air flow exchange system for a fireplace as claimed in claim 1, wherein: the upper end of the air outlet branch pipe (5) is fixedly provided with an inclined plate (51), the inclined plate (51) is positioned in the combustion chamber (1), and the inclined plates (51) on two sides incline towards the main heat pipe (23) to guide heat flow to enter the main heat pipe (23).

9. An air flow exchange system for a fireplace as claimed in claim 8, wherein: the sloping plate (51) is positioned at the boundary between the main heat pipe (23) and the auxiliary heat pipe (24).

10. An air flow exchange system for a fireplace as claimed in claim 2, wherein: the outlet of the new air pipe (31) is provided with a splitter plate (71) for splitting the air flow into an upper air flow and a lower air flow, and the lower air flow faces the main heat conducting pipe (23) and the auxiliary heat conducting pipe (24);

an upper warm air pipe (72) is arranged above the airflow conversion cabin (21), the top plate of the airflow conversion cabin (21) is the pipe wall of the upper warm air pipe (72), one end of the upper warm air pipe (72) is communicated with the upper air flow, and the other end of the upper warm air pipe (72) is located above the radiating fins (6).