Energy-saving heating furnace capable of recycling waste heat

Abstract

The utility model discloses an energy-saving heating furnace capable of recycling waste heat. The energy-saving heating furnace comprises a furnace body and a waste heat recycling mechanism, a combustion furnace body is arranged at the bottom of the furnace body, a smoke guide channel is arranged on the upper side of the rear side face of the furnace body, an air inlet is formed in the right upper side of the combustion furnace body, a fuel gas inlet is formed in the right lower side of the combustion furnace body, the right end of the air inlet is externally connected with an external air compressor, and the right end of the fuel gas inlet is externally connected with external fuel gas supply equipment. Uniformly distributed heat discharge ports are formed in the upper sides of the left and right side surfaces and the front side surface of the furnace body; the waste heat recycling and reusing mechanism comprises a smoke guide chamber, heat absorption pipes, heat exchange pipes and cooling fins, the smoke guide chamber is arranged at the upper end of the smoke guide channel, the heat absorption pipes are arranged in the smoke guide chamber, the heat exchange pipes are arranged on the front side face of the smoke guide chamber, the cooling fins are fixedly connected to the outer arc faces of the heat exchange pipes, and a sealing plate is hinged to the upper end of the smoke guide chamber through hinges; according to the energy-saving heating furnace capable of recycling the waste heat, the recycling rate of the waste heat is high.

Description

Technical Field

[0001] The utility model relates to the technical field of heating, in particular to an energy-saving heating furnace with recoverable waste heat. Background Art

[0002] A heating furnace is a heating equipment that is widely used in our daily life. There are many types of heating furnaces, and a gas heating furnace is a commonly used heating furnace. The principle of a gas heating furnace is to break the fuel molecules and reduce them to gas molecules through partial oxidation or complete combustion at high temperature. In this process, a large amount of heat will be generated, and this heat will be used for heating. However, most of the heat generated by the gas heating furnace during combustion is discharged with the smoke produced by combustion. The existing gas heating furnace only has a main heat exchanger and does not reuse the waste heat in the smoke, resulting in waste. For this reason, we propose an energy-saving heating furnace with recoverable waste heat. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide an energy-saving heating furnace with recoverable waste heat, which has a high reuse rate of waste heat and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an energy-saving heating furnace with recoverable waste heat, comprising a furnace body and a waste heat recovery and reuse mechanism;

[0005] Furnace body: The bottom is provided with a combustion furnace body, the upper side of the rear side of the furnace body is provided with a smoke guide channel, the upper right side of the combustion furnace body is provided with an air inlet, the lower right side of the combustion furnace body is provided with a gas inlet, the right end of the air inlet is connected to an external air compressor, the right end of the gas inlet is connected to an external gas supply device, and evenly distributed heat exhaust ports are opened on the upper left and right sides and the front side of the furnace body;

[0006] Residual heat recovery and reuse mechanism: It includes a smoke guide chamber, a heat absorption tube, a heat exchange tube and a heat sink. The smoke guide chamber is arranged at the upper end of the smoke guide channel. A group of heat absorption tubes are provided inside the smoke guide chamber. A heat exchange tube is provided on the front side of the smoke guide chamber. The outer arc surface of the heat exchange tube is fixedly connected to the heat sink. The upper end of the smoke guide chamber is hinged with a sealing plate through a hinge, which has a high efficiency in recycling residual heat.

[0007] Furthermore, it also includes a control switch group, which is arranged on the right side of the furnace body. The input end of the control switch group is electrically connected to an external power supply to control the normal operation of the electrical appliance.

[0008] Furthermore, the waste heat recovery and reuse mechanism also includes a smoke exhaust fan, which is arranged in the middle of the smoke guide chamber. The smoke exhaust fan is located between the interlayers of the heat exchange tubes. The input end of the smoke exhaust fan is electrically connected to the output end of the control switch group to realize the function of smoke guidance and exhaust.

[0009] Furthermore, the waste heat recovery and reuse mechanism also includes a circulation pump, which is connected in series to the upper right side of the outer arc surface of the heat exchange tube. The input end of the circulation pump is electrically connected to the output end of the control switch group to realize the function of circulating hot and cold water.

[0010] Furthermore, it also includes an igniter, which is arranged at the lower end of the furnace body, and the ignition port of the igniter extends to the interior of the combustion furnace body. The input end of the igniter is electrically connected to the output end of the control switch group to realize the ignition function.

[0011] Furthermore, it also includes a cooling fan, which is arranged in the middle of the front side of the smoke guide chamber. The cooling fan corresponds to the front and rear positions of the heat sink. The input end of the cooling fan is electrically connected to the output end of the control switch group to realize the function of secondary cooling and auxiliary heating.

[0012] Furthermore, it also includes a bottom support frame, which is arranged at the lower end of the furnace body to realize the bottom support function.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the energy-saving heating furnace with waste heat recovery has the following advantages:

[0014] A portion of the smoke generated by combustion enters the smoke guide chamber along the smoke guide channel. At this time, the smoke exhaust fan can be regulated. The smoke passes through the smoke exhaust fan and the heat absorption pipe and is then discharged upward. At this time, the circulation pump can be regulated to circulate the hot water in the heat absorption pipe and the cold water in the heat exchange pipe. When the heat exchange pipe is full of hot water, the heat of the hot water is transferred to the heat sink. Then the control switch group can be regulated to start the heat sink fan. The airflow blown out by the heat sink fan dissipates the heat on the heat sink into the air, and then the smoke exhaust fan and the hot and cold water in the heat absorption pipe are continuously circulated, which has a high reuse rate of waste heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0017] In the figure: 1 furnace body, 2 waste heat recovery and reuse mechanism, 21 smoke guide chamber, 22 smoke exhaust fan, 23 heat absorption pipe, 24 heat exchange pipe, 25 circulation pump, 26 heat sink, 3 combustion furnace body, 4 bottom side support frame, 5 igniter, 6 heat exhaust port, 7 cooling fan, 8 sealing plate, 9 air inlet, 10 gas inlet, 11 control switch group. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-2 , this embodiment provides a technical solution: an energy-saving heating furnace with recoverable waste heat, comprising a furnace body 1 and a waste heat recovery and reuse mechanism 2;

[0020] Furnace body 1: a combustion furnace body 3 is provided at the bottom thereof, a smoke guide channel is provided on the upper side of the rear side of the furnace body 1, an air inlet 9 is provided on the upper right side of the combustion furnace body 3, a gas inlet 10 is provided on the lower right side of the combustion furnace body 3, the right end of the air inlet 9 is connected to an external air compressor, and the right end of the gas inlet 10 is connected to an external gas supply device. Heat exhaust ports 6 are evenly distributed on the upper left and right sides and the front side of the furnace body 1. The furnace body 1 also includes a control switch group 11, which is arranged on the right side of the furnace body 1. The input end of the control switch group 11 is electrically connected to an external power supply. The furnace body 1 also includes an igniter 5, which is arranged at the lower end of the furnace body 1. The ignition port of the igniter 5 extends to the interior of the combustion furnace body 3. The igniter 5 The input end is electrically connected to the output end of the control switch group 11, and also includes a bottom support frame 4. The bottom support frame 4 is arranged at the lower end of the furnace body 1. When heating operation is required, the energy-saving heating furnace is placed on the designated workstation through the bottom support frame 4. At this time, the external gas supply equipment can be regulated to continuously add combustion gas to the combustion furnace body 3, and then the external air compressor can be regulated to continuously add air to the combustion furnace body 3. At this time, the control switch group 11 can be regulated, and the igniter 5 ignites the mixture of combustion gas and air in the combustion furnace body 3. At this time, combustion gas and compressed air can be continuously supplied. At this time, the combustion furnace body 3 will generate a large amount of heat, most of which is discharged to the outside of the furnace body 1 through the heat exhaust port 6;

[0021] The residual heat recovery and reuse mechanism 2 includes a smoke guide chamber 21, a heat absorption tube 23, a heat exchange tube 24 and a heat sink 26. The smoke guide chamber 21 is arranged at the upper end of the smoke guide channel. A group of heat absorption tubes 23 are provided inside the smoke guide chamber 21. A heat exchange tube 24 is provided on the front side of the smoke guide chamber 21. The outer arc surface of the heat exchange tube 24 is fixedly connected to the heat sink 26. The upper end of the smoke guide chamber 21 is hinged with a sealing plate 8 through a hinge. The residual heat recovery and reuse mechanism 2 also includes a smoke exhaust fan 22. The smoke exhaust fan 22 is arranged in the middle of the smoke guide chamber 21. The smoke exhaust fan 22 is located between the interlayers of the heat exchange tube 24. The input end of the smoke exhaust fan 22 is electrically connected to the output end of the control switch group 11. The residual heat recovery and reuse mechanism 2 also includes a circulation pump 25. The circulation pump 25 is connected in series to the upper right side of the outer arc surface of the heat exchange tube 24. The input end of the circulation pump 25 is electrically connected to the output end of the control switch group 11. The hot fan 7 and the heat dissipation fan 7 are arranged in the middle of the front side of the smoke guide chamber 21. The front and rear positions of the heat dissipation fan 7 and the heat sink 26 correspond. The input end of the heat dissipation fan 7 is electrically connected to the output end of the control switch group 11. A part of the smoke generated by the combustion enters the interior of the smoke guide chamber 21 along the smoke guide channel. At this time, the smoke exhaust fan 22 can be regulated. These smoke pass through the smoke exhaust fan 22 and the heat absorption pipe 23, and then are discharged upward. At this time, the circulation pump 25 can be regulated. The circulation pump 25 is operated to circulate the hot water in the heat absorption pipe 23 and the cold water in the heat exchange pipe 24. When the heat exchange pipe 24 is full of hot water, the heat of the hot water is transferred to the heat sink 26. Then the control switch group 11 can be regulated to operate the heat dissipation fan 7. The airflow blown out by the heat dissipation fan 7 dissipates the heat on the heat sink 26 into the air, and then continuously circulates the hot and cold water in the smoke exhaust fan 22 and the heat absorption pipe 23.

[0022] The working principle of the energy-saving heating furnace with waste heat recovery provided by the present invention is as follows: when heating operation is required, the energy-saving heating furnace is placed on the designated work station through the bottom support frame 4, and the external gas supply equipment can be adjusted to continuously add combustion gas to the combustion furnace body 3, and then the external air compressor can be adjusted to continuously add air to the combustion furnace body 3, and then the control switch group 11 can be adjusted, and the igniter 5 ignites the mixture of combustion gas and air in the combustion furnace body 3, and then the combustion gas and compressed air can be continuously supplied, and the combustion furnace body 3 will generate a lot of heat, most of which is discharged from the heat exhaust port 6 to the furnace body 1 The smoke passes through the smoke exhaust fan 22 and the heat absorption pipe 23 and is then discharged upward. At this time, the circulation pump 25 can be regulated. The circulation pump 25 is operated to circulate the hot water in the heat absorption pipe 23 and the cold water in the heat exchange pipe 24. When the heat exchange pipe 24 is full of hot water, the heat of the hot water is transferred to the heat sink 26. Then the control switch group 11 can be regulated to operate the cooling fan 7. The airflow blown out by the cooling fan 7 dissipates the heat on the heat sink 26 into the air, and then the hot and cold water in the smoke exhaust fan 22 and the heat absorption pipe 23 are continuously circulated.

[0023] It is worth noting that the exhaust fan 22, circulation pump 25, combustion furnace body 3, igniter 5 and cooling fan 7 disclosed in the above embodiments can be freely configured according to the actual application scenario. It is recommended to use a HYLG series combustion furnace for the combustion furnace body 3, a FAC-30Y model exhaust fan for the exhaust fan 22, an OPS series circulation pump for the circulation pump 25, a DBD-YT electronic igniter for the igniter 5, and a 200FZY2-D model axial flow fan for the cooling fan 7. The control switch group is provided with control buttons that correspond one to one with the exhaust fan 22, the circulation pump 25, the igniter 5 and the cooling fan 7 and are used to control their switches.

[0024] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An energy-saving heating furnace with waste heat recovery, characterized by: It comprises a furnace body (1) and a residual heat recovery and reuse mechanism (2); Furnace body (1): a combustion furnace body (3) is provided at the bottom thereof, a smoke guide channel is provided on the upper side of the rear side of the furnace body (1), an air inlet (9) is provided on the upper right side of the combustion furnace body (3), a gas inlet (10) is provided on the lower right side of the combustion furnace body (3), the right end of the air inlet (9) is externally connected to an external air compressor, and the right end of the gas inlet (10) is externally connected to an external gas supply device, and evenly distributed heat exhaust ports (6) are provided on the upper sides of the left and right sides and the front side of the furnace body (1); A residual heat recovery and reuse mechanism (2): comprising a smoke guide chamber (21), a heat absorption tube (23), a heat exchange tube (24) and a heat sink (26); the smoke guide chamber (21) is arranged at the upper end of the smoke guide channel; a group of heat absorption tubes (23) are provided inside the smoke guide chamber (21); a heat exchange tube (24) is provided on the front side of the smoke guide chamber (21); the outer arc surface of the heat exchange tube (24) is fixedly connected to the heat sink (26); and the upper end of the smoke guide chamber (21) is hinged to a sealing plate (8) through a hinge.

2. The energy-saving heating furnace with waste heat recovery according to claim 1, characterized in that: It also includes a control switch group (11), which is arranged on the right side of the furnace body (1), and an input end of the control switch group (11) is electrically connected to an external power supply.

3. The energy-saving heating furnace with waste heat recovery according to claim 2, characterized in that: The residual heat recovery and reuse mechanism (2) further comprises a smoke exhaust fan (22), which is arranged in the middle of the smoke guide chamber (21). The smoke exhaust fan (22) is located between the interlayers of the heat exchange tube (24), and the input end of the smoke exhaust fan (22) is electrically connected to the output end of the control switch group (11).

4. The energy-saving heating furnace with waste heat recovery according to claim 2, characterized in that: The residual heat recovery and reuse mechanism (2) further comprises a circulation pump (25), which is connected in series to the upper right side of the outer arc surface of the heat exchange tube (24), and the input end of the circulation pump (25) is electrically connected to the output end of the control switch group (11).

5. The energy-saving heating furnace with waste heat recovery according to claim 2, characterized in that: It also includes an igniter (5), which is arranged at the lower end of the furnace body (1), an ignition port of the igniter (5) extends into the interior of the combustion furnace body (3), and an input end of the igniter (5) is electrically connected to an output end of the control switch group (11).

6. The energy-saving heating furnace with waste heat recovery according to claim 2, characterized in that: It also includes a heat dissipation fan (7), which is arranged in the middle of the front side of the smoke guide chamber (21), and the front and rear positions of the heat dissipation fan (7) and the heat dissipation fin (26) correspond to each other, and the input end of the heat dissipation fan (7) is electrically connected to the output end of the control switch group (11).

7. The energy-saving heating furnace with waste heat recovery according to claim 1, characterized in that: It also includes a bottom support frame (4), which is arranged at the lower end of the furnace body (1).

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