Wall-mounted combustible liquid fuel heating furnace

Abstract

The utility model relates to a wall-mounted combustible liquid fuel heating furnace which comprises a furnace body, a combustor arranged in the furnace body, a combustion chamber and a heat exchanger, the heat exchanger comprises a heat exchange pipe for liquid to run, a gasification chamber and an oil drum for storing liquid fuel are arranged in the furnace body, and the gasification chamber is provided with a heating body for heating the liquid fuel. A liquid fuel conveying module is arranged between an inlet of the gasification chamber and an outlet of the oil drum, a combustible gas conveying module is arranged between an outlet of the gasification chamber and the combustor, the heat exchanger is arranged on the combustion chamber, and a gas inlet channel is arranged between the gasification chamber and the combustion chamber. An air inlet of the air blower is communicated with outside air, and an air outlet of the air blower is communicated with an inner cavity of the gasification chamber; high-temperature flue gas released by the combustor enters the gasification chamber, and the liquid fuel in the gasification chamber is heated and gasified by the high-temperature flue gas, so that a heating body in the gasification chamber does not need to continuously operate, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating and ventilation, in particular to a wall-mounted combustible liquid fuel heating furnace. Background Art

[0002] It is inconvenient to use gas wall-mounted boilers in rural areas or towns that are not connected to natural gas, and additional LPG cylinders need to be placed.

[0003] In order to solve the above technical problems, Chinese Patent No. 201821556528.7 discloses a flammable liquid heating furnace, including a furnace body, a heat collecting box, and a first heating device. The furnace body is provided with an air outlet and an air inlet. The heat collecting box is arranged in the furnace body. The heat collecting box is connected with a water inlet pipe and a water outlet pipe. The first heating device includes a flammable liquid pump and a burner. The burner is located below the heat collecting box and is connected to the flammable liquid pump through a pipeline. The first heating device also includes a gasification device. The flammable liquid pump, the burner and the gasification device are connected in sequence through a pipeline. It adopts an ultrasonic gasification device, which needs to be running all the time to gasify the flammable liquid, so it needs further improvement in energy saving. Utility Model Content

[0004] The purpose of the utility model is to provide a wall-mounted combustible liquid fuel heating furnace, in which high-temperature flue gas released by a burner enters a vaporization chamber, and the high-temperature flue gas heats and vaporizes the liquid fuel in the vaporization chamber, so that the heating element in the vaporization chamber does not need to run continuously, thereby achieving energy-saving effects.

[0005] The purpose of the utility model is achieved in this way:

[0006] A wall-mounted combustible liquid fuel heating furnace comprises a furnace body, a burner arranged in the furnace body, a combustion chamber, and a heat exchanger. The heat exchanger comprises a heat exchange tube for liquid operation. A vaporization chamber and an oil barrel for storing liquid fuel are arranged in the furnace body. A heating element for heating the liquid fuel is arranged in the vaporization chamber. A liquid fuel delivery module is arranged between the inlet of the vaporization chamber and the outlet of the oil barrel. A combustible gas delivery module is arranged between the outlet of the vaporization chamber and the burner. The heat exchanger is arranged on the combustion chamber. An air intake channel is arranged between the vaporization chamber and the combustion chamber. A blower is arranged on one side of the vaporization chamber. The air inlet of the blower is connected to the outside air, and the air outlet of the blower is connected to the inner cavity of the vaporization chamber. The heating furnace works At the same time, the liquid fuel in the oil barrel is transported to the vaporization chamber through the liquid fuel delivery module for heating and vaporization. The blower delivers outside air to the vaporization chamber. The outside air and the vaporized fuel are premixed in the vaporization chamber to form combustible gas. The combustible gas in the vaporization chamber enters the burner through the combustible gas delivery module for combustion. The burner releases high-temperature gas when burning. The high-temperature gas passes through the combustion chamber, the heat exchanger, and the vaporization chamber in turn. When the liquid flows on the heat exchange tube of the heat exchanger, the high-temperature gas exchanges heat with the liquid in the heat exchanger. At the same time, the high-temperature gas in the combustion chamber enters the vaporization chamber through the air intake channel. The high-temperature gas heats the vaporized fuel to form a closed-loop heating.

[0007] The setting of the blower can increase the wind pressure in the gasification chamber and improve the conveying speed of the combustible gas.

[0008] The wall-mounted combustible liquid fuel heating furnace also includes a fuel pump arranged in the furnace body, one end of the fuel pump is connected to the inlet of the oil barrel through a delivery pipeline; the other end of the fuel pump is connected to an external liquid fuel storage tank through another delivery pipeline; when the heating furnace is working, the fuel pump delivers the liquid fuel in the external liquid fuel storage tank to the oil barrel through the delivery pipeline.

[0009] A liquid level sensor is provided in the oil barrel for detecting the liquid height of the liquid fuel in the oil barrel. When the fuel pump draws the liquid fuel into the oil barrel, there is a liquid level sensor in the oil barrel. When the liquid level sensor detects that the liquid fuel is at the highest liquid level position in the oil barrel, the fuel pump is shut down and stops adding liquid fuel to the oil barrel.

[0010] A fuel injection pump is provided in the oil barrel, one end of the fuel injection pump is connected to the inner cavity of the oil barrel, and the other end of the fuel injection pump is connected to the outlet of the oil barrel. The liquid fuel delivery module includes a liquid fuel delivery pipe connected to the outlet of the oil barrel, and a fuel injection nozzle fixedly arranged on the inlet of the vaporization chamber; when the heating furnace is working, the fuel injection pump delivers the liquid fuel in the oil barrel through the liquid fuel delivery pipe to the fuel injection nozzle, and the fuel injection nozzle sprays the liquid fuel toward the vaporization chamber.

[0011] Liquid fuel is sprayed out at high speed by the fuel injection pump and fuel injection nozzle and forms a mist.

[0012] An oil return pipe is provided between the oil barrel and the inner cavity of the gasification chamber, and the liquid fuel that has not been gasified returns to the oil barrel through the oil return pipe.

[0013] The combustible gas delivery module comprises a gas port arranged on the gasification chamber and a gas valve arranged on the burner air inlet pipeline.

[0014] The wall-mounted combustible liquid fuel heating furnace also includes a smoke exhaust seat arranged on the furnace body, and a smoke collecting hood arranged in the furnace body, the smoke collecting hood covers the vaporization chamber, an exhaust fan is arranged on the smoke exhaust seat, the air inlet of the exhaust fan is connected to the vaporization chamber, and the air outlet of the exhaust fan is connected to the smoke exhaust seat.

[0015] The heat exchange tube inlet of the heat exchanger is connected to a water pump through a water pipe.

[0016] The vaporization chamber comprises an outer shell, an oil return port for connecting to an oil return pipe is arranged on the outer shell, and a condensation port for connecting to a condensed water pipe is arranged on the outer shell.

[0017] The gasification chamber includes a first partition, a second partition, a third partition, a fourth partition, and a fifth partition which are arranged at intervals in the upper and lower parts. A plurality of smoke inlet pipes for entering and exiting high-temperature flue gas are interspersed between the first partition, the second partition, the third partition, the fourth partition, and the fifth partition; a first space connected to the air outlet of the blower is formed between the fourth partition and the fifth partition, and the oil return port is connected to the first space; a second space is formed between the third partition and the fourth partition, and the outlet end of the liquid fuel delivery module is connected to the second space; a plurality of first perforations for connecting to the second space are provided on the fourth partition; a third space is formed between the second partition and the third partition, and a plurality of second perforations for connecting to the third space are provided on the third partition; a fourth space is formed between the first partition and the second partition, and the heating element is a light wave tube, which is horizontally interspersed in the second space; a notch connected to the fourth space is provided on the third space, and the inlet of the combustible gas delivery module is connected to the fourth space.

[0018] The liquid fuel that has not been vaporized enters the first space under the action of gravity and returns to the oil barrel through the oil return port and the oil return pipe.

[0019] The beneficial effects of the utility model are as follows:

[0020] The high-temperature flue gas released by the burner enters the vaporization chamber, and the high-temperature flue gas heats and vaporizes the liquid fuel in the vaporization chamber, so that the heating element in the vaporization chamber does not need to run continuously, eliminating the traditional ultrasonic atomization technology, and further achieving energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the internal structure of a heating furnace according to an embodiment of the utility model.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of a gasification chamber according to an embodiment of the present utility model.

[0023] Figure 3 This is a schematic diagram of the internal structure of a gasification chamber according to an embodiment of the present utility model.

[0024] Figure 4 The figure is a schematic diagram of the internal structure of an oil drum according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-Figure 4 A wall-mounted combustible liquid fuel heating furnace comprises a furnace body 1, a burner 11 arranged in the furnace body 1, a combustion chamber 12, and a heat exchanger 13. The heat exchanger 13 comprises a heat exchange tube for liquid operation. A vaporization chamber 14 and an oil barrel 5 for storing liquid fuel are arranged in the furnace body 1. The vaporization chamber 14 is provided with a heating element 16 for heating the liquid fuel. A liquid fuel delivery module 21 is arranged between the inlet of the vaporization chamber 14 and the outlet of the oil barrel 5. A combustible gas delivery module 22 is arranged between the outlet of the vaporization chamber 14 and the burner 11. The heat exchanger 13 is arranged on the combustion chamber 12. An air intake channel is arranged between the vaporization chamber 14 and the combustion chamber 12. A blower 2 is arranged on one side of the vaporization chamber 14. The air inlet of the blower 2 is connected to the outside air, and the air outlet of the blower 2 is connected to the inner cavity of the vaporization chamber 14. When the heating furnace is working, the liquid fuel in the oil barrel 5 is transported to the vaporization chamber 14 through the liquid fuel delivery module 21 for heating and vaporization. The blower 2 delivers outside air to the vaporization chamber 14. The outside air and the vaporized fuel are premixed in the vaporization chamber 14 to form a combustible gas. The combustible gas in the vaporization chamber 14 enters the burner 11 through the combustible gas delivery module 22 for combustion. The burner 11 releases high-temperature gas when burning. The high-temperature gas passes through the combustion chamber 12, the heat exchanger 13, and the vaporization chamber 14 in turn. When the liquid flows on the heat exchange tubes of the heat exchanger 13, the high-temperature gas exchanges heat with the liquid in the heat exchanger 13. At the same time, the high-temperature gas in the combustion chamber 12 enters the vaporization chamber 14 through the air intake channel. The high-temperature gas heats the vaporized fuel to form a closed-loop heating.

[0027] The wall-mounted combustible liquid fuel heating furnace also includes a fuel pump 6 arranged in the furnace body 1, one end of the fuel pump 6 is connected to the inlet of the oil barrel 5 through a delivery pipe; the other end of the fuel pump 6 is connected to an external liquid fuel storage tank through another delivery pipe; when the heating furnace is working, the fuel pump 6 delivers the liquid fuel in the external liquid fuel storage tank to the oil barrel 5 through the delivery pipe.

[0028] A liquid level sensor 23 for detecting the liquid level height of the liquid fuel in the oil barrel 5 is disposed in the oil barrel 5 .

[0029] A fuel injection pump 24 is provided in the oil barrel 5, one end of the fuel injection pump 24 is connected to the inner cavity of the oil barrel 5, and the other end of the fuel injection pump 24 is connected to the outlet of the oil barrel 5. The liquid fuel delivery module 21 includes a liquid fuel delivery pipe 4 connected to the outlet of the oil barrel 5, and a fuel injection nozzle 15 fixedly arranged on the inlet of the vaporization chamber 14; when the heating furnace is working, the fuel injection pump 24 delivers the liquid fuel in the oil barrel 5 to the fuel injection nozzle 15 through the liquid fuel delivery pipe 4, and the fuel injection nozzle 15 sprays the liquid fuel toward the vaporization chamber 14.

[0030] An oil return pipe is provided between the oil barrel 5 and the inner cavity of the vaporization chamber 14 , and the unvaporized liquid fuel returns to the oil barrel 5 through the oil return pipe.

[0031] The combustible gas delivery module 22 includes a gas port 17 disposed on the gasification chamber 14 and a gas valve 9 disposed on the air inlet pipeline of the burner 11 .

[0032] The wall-mounted combustible liquid fuel heating furnace also includes a smoke exhaust seat 20 arranged on the furnace body 1, and a smoke collecting hood 18 arranged in the furnace body 1, the smoke collecting hood 18 covers the vaporization chamber 14, and an exhaust fan 19 is provided on the smoke exhaust seat 20, the air inlet of the exhaust fan 19 is connected to the vaporization chamber 14, and the air outlet of the exhaust fan 19 is connected to the smoke exhaust seat 20.

[0033] The heat exchange tube inlet of the heat exchanger 13 is connected to the water pump 10 through a water pipe.

[0034] The vaporization chamber 14 includes an outer shell 25 , on which an oil return port 26 for connecting to an oil return pipe is disposed, and on which a condensation port 27 for connecting to a condensed water pipe is disposed.

[0035] The gasification chamber 14 includes a first baffle 28, a second baffle 29, a third baffle 30, a fourth baffle 31, and a fifth baffle 32 which are arranged in an upper and lower interval. A plurality of smoke inlet pipes 33 for entering and exiting high-temperature smoke are inserted between the first baffle 28, the second baffle 29, the third baffle 30, the fourth baffle 31, and the fifth baffle 32; a first space connected to the air outlet of the blower 2 is formed between the fourth baffle 31 and the fifth baffle 32, and the oil return port 26 is connected to the first space, and a second space is formed between the third baffle 30 and the fourth baffle 31, and the liquid fuel delivery module The outlet end of the block 21 is connected to the second space, and the fourth partition 31 is provided with a plurality of first through holes 34 for connecting to the second space; a third space is formed between the second partition 29 and the third partition 30, and the third partition 30 is provided with a plurality of second through holes 35 for connecting to the third space; a fourth space is formed between the first partition 28 and the second partition 29, and the heating element 16 is a light wave tube, and is laterally interspersed in the second space; a notch 36 for connecting to the fourth space is provided on the third space, and the inlet of the combustible gas delivery module 22 is connected to the fourth space.

[0036] Specifically:

[0037] The wall-mounted heating furnace in this embodiment uses a flammable liquid or a liquid fuel similar to a flammable liquid as fuel. This model is used in rural areas or towns where natural gas is not available, and can fill the heating gap in these places. Its working process is as follows:

[0038] Liquid fuel is pumped into the oil barrel 5 by the fuel pump 6. There is a liquid level sensor 23 in the oil barrel 5. When the liquid fuel reaches the position of the liquid level sensor 23, the fuel pump 6 stops moving and stops adding liquid fuel to the oil barrel 5. After the heating furnace is turned on, the heating element 16 heats up, and the blower 2 works at the same time. After 20 seconds, the fuel injection pump 24 in the oil barrel 5 works to pump the liquid fuel to the fuel injection nozzle 15, and the fuel injection nozzle 15 sprays out mist liquid under high pressure. In the vaporization chamber 14, the mist liquid is heated and vaporized by the light wave tube, and at the same time, the blower 2 sends in an appropriate amount of air to mix with the vaporized fuel to become partially premixed combustible gas (the unvaporized part flows back to the oil barrel 5 from the oil return port). The combustible gas is sent to the gas valve 9 from the gas port 17, and then to the burner 11 for combustion. The high-temperature gas after combustion passes through the combustion chamber 12 and reaches the heat exchanger 13, where it exchanges heat with the running water. The high-temperature gas then passes through the vaporization chamber 14 to heat the sprayed mist fuel inside, forming a closed-loop heating (when the operation is stable, the light wave tube stops heating). After passing through the vaporization chamber, the high-temperature gas reaches the smoke hood 18, is discharged to the smoke seat 20 by the exhaust fan 19, and then discharged by the smoke pipe.

[0039] When the machine is just started, the light wave tube heats the entire vaporization chamber 14, and the liquid fuel is sprayed out at high speed from the fuel injector 15 to form a mist. This mist fuel is vaporized when it encounters high temperature. At the same time, the blower 2 blows in air, and the air moves upward from the first space between the fourth partition plate 31 and the fifth partition plate 32, and reaches the second space between the third partition plate 30 and the fourth partition plate 31 through the first perforation 34 to mix with the vaporized fuel. The mixed gas reaches the third space between the second partition plate 29 and the third partition plate 30 through the second perforation 35 on the third partition plate 30, and is fully mixed with the air again in this space, and reaches the fourth space between the first partition plate 28 and the second partition plate 29 through the notch 36, and is discharged from the gas port 17 to the gas valve 9, completing the vaporization of the liquid fuel and the partial premixing of the air.

[0040] During the working process, the light wave tube only plays an auxiliary role in operation and does not need to work for a long time.

[0041] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A wall-mounted combustible liquid fuel heating furnace, comprising a furnace body (1), a burner (11) arranged in the furnace body (1), a combustion chamber (12), and a heat exchanger (13), wherein the heat exchanger (13) comprises a heat exchange tube for liquid circulation, characterized in that: A furnace body (1) is provided with a gasification chamber (14) and an oil barrel (5) for storing liquid fuel. The gasification chamber (14) is provided with a heating element (16) for heating the liquid fuel. A liquid fuel delivery module (21) is provided between the inlet of the gasification chamber (14) and the outlet of the oil barrel (5). A combustible gas delivery module (22) is provided between the outlet of the gasification chamber (14) and the burner (11). A heat exchanger (13) is arranged on the combustion chamber (12). An air intake passage is provided between the gasification chamber (14) and the combustion chamber (12). A blower (2) is provided on one side of the gasification chamber (14). The air inlet of the blower (2) is connected to the outside air, and the air outlet of the blower (2) is connected to the inner cavity of the gasification chamber (14).

2. The wall-mounted combustible liquid fuel heating furnace according to claim 1, characterized in that: It also includes a fuel pump (6) disposed in the furnace body (1); one end of the fuel pump (6) is connected to the inlet of the oil barrel (5) via a delivery pipeline; the other end of the fuel pump (6) is connected to an external liquid fuel storage device via another delivery pipeline; when the heating furnace is working, the fuel pump (6) delivers liquid fuel from the external liquid fuel storage device to the oil barrel (5) via the delivery pipeline.

3. The wall-mounted combustible liquid fuel heating furnace according to claim 1, characterized in that: A liquid level sensor (23) for detecting the height of the liquid level of the liquid fuel in the oil barrel (5) is provided in the oil barrel (5).

4. The wall-mounted combustible liquid fuel heating furnace according to claim 1, characterized in that: An oil pump (24) is provided in the oil barrel (5), one end of the oil pump (24) is connected to the inner cavity of the oil barrel (5), and the other end of the oil pump (24) is connected to the outlet of the oil barrel (5). The liquid fuel delivery module (21) comprises a liquid fuel delivery pipe (4) connected to the outlet of the oil barrel (5), and an oil nozzle (15) fixedly arranged on the inlet of the vaporization chamber (14). When the heating furnace is working, the oil pump (24) delivers the liquid fuel in the oil barrel (5) to the oil nozzle (15) through the liquid fuel delivery pipe (4), and the oil nozzle (15) sprays the liquid fuel toward the vaporization chamber (14).

5. The wall-mounted combustible liquid fuel heating furnace according to claim 1, characterized in that: An oil return pipe is provided between the oil barrel (5) and the inner cavity of the vaporization chamber (14), and the unvaporized liquid fuel returns to the oil barrel (5) through the oil return pipe.

6. The wall-mounted combustible liquid fuel heating furnace according to claim 1, characterized in that: The combustible gas delivery module (22) comprises a gas port (17) arranged on the gasification chamber (14), and a gas valve (9) arranged on the gas inlet pipeline of the burner (11).

7. The wall-mounted combustible liquid fuel heating furnace according to claim 1, characterized in that: It also includes a smoke exhaust seat (20) arranged on the furnace body (1), and a smoke collecting hood (18) arranged in the furnace body (1), the smoke collecting hood (18) covering the vaporization chamber (14), an exhaust fan (19) being arranged on the smoke exhaust seat (20), an air inlet of the exhaust fan (19) being connected to the vaporization chamber (14), and an air outlet of the exhaust fan (19) being connected to the smoke exhaust seat (20).

8. The wall-mounted combustible liquid fuel heating furnace according to claim 1, characterized in that: The heat exchange tube inlet of the heat exchanger (13) is connected to the water pump (10) via a water pipe.

9. The wall-mounted combustible liquid fuel heating furnace according to claim 1, characterized in that: The vaporization chamber (14) comprises an outer shell (25), the outer shell (25) is provided with an oil return port (26) for connecting to an oil return pipe, and the outer shell (25) is provided with a condensation port (27) for connecting to a condensed water pipe.

10. The wall-mounted combustible liquid fuel heating furnace according to claim 9, characterized in that: The gasification chamber (14) comprises a first partition (28), a second partition (29), a third partition (30), a fourth partition (31), and a fifth partition (32) which are arranged in an upper and lower interval. A plurality of smoke inlet pipes (33) for entering and exiting high-temperature smoke are interspersed between the first partition (28), the second partition (29), the third partition (30), the fourth partition (31), and the fifth partition (32). A first space connected to the air outlet of the blower (2) is formed between the fourth partition (31) and the fifth partition (32). The oil return port (26) is connected to the first space. A second space is formed between the third partition (30) and the fourth partition (31). The outlet end of the fuel delivery module (21) is connected to the second space, and the fourth partition (31) is provided with a plurality of first perforations (34) for connecting to the second space; a third space is formed between the second partition (29) and the third partition (30), and the third partition (30) is provided with a plurality of second perforations (35) for connecting to the third space; a fourth space is formed between the first partition (28) and the second partition (29); the heating element (16) is a light wave tube and is arranged transversely in the second space; a notch (36) for connecting to the fourth space is provided in the third space, and the inlet of the combustible gas delivery module (22) is connected to the fourth space.

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