A natural gas combustion energy-saving furnace with downward exhaust type strong exhaust gas

Abstract

The invention discloses a natural gas combustion energy-saving furnace with downward exhaust type forced exhaust of exhaust gas, comprising a furnace jacket, a heat storage furnace is arranged inside the furnace jacket, the bottom of the heat storage furnace is fixedly connected to the combustion furnace, a lower gathering chamber is arranged at the bottom of the combustion furnace, the top of the furnace jacket is connected to an upper gathering chamber, the top of the lower gathering chamber is fixedly connected to a plurality of heat circulation pipes, and the upper gathering chamber and the lower gathering chamber are interconnected through the heat circulation pipe, a heat storage coil is fixedly arranged in the middle of the hollow groove, and an induced draft fan is arranged on one side of a heat collecting box. The invention provides an upper gathering chamber and a lower gathering chamber, and the two are interconnected through the heat circulation pipe, and the heat circulation pipe realizes the exchange of combustion heat in the furnace, and then circulates through the heat storage coil arranged at the bottom of the support seat, and is discharged below the furnace jacket by the induced draft fan and the heat exhaust pipe, thereby abandoning the traditional upward exhaust method of the combustion furnace, effectively avoiding the phenomenon of heating of the upper panel, and at the same time effectively reducing the heat loss, greatly improving the heat utilization rate, and saving energy and being environmentally friendly.

Description

Technical Field

[0001] The invention relates to the technical field of natural gas combustion furnaces, and in particular to a natural gas combustion energy-saving furnace with downward exhaust type strong exhaust of waste gas. Background Art

[0002] Natural gas refers to all gases that exist naturally in nature, including gases formed by various natural processes in the atmosphere, hydrosphere, and lithosphere (including oilfield gas, gas field gas, mud volcano gas, coalbed methane, and biogenic gas, etc.).

[0003] The definition of "natural gas" that people have long used is a narrow definition from the perspective of energy, which refers to a mixture of hydrocarbons and non-hydrocarbon gases naturally stored in the strata. In petroleum geology, it usually refers to oilfield gas and gasfield gas. Its composition is mainly hydrocarbons and contains non-hydrocarbon gases. The natural gas burner is a combustion equipment that uses natural gas as fuel and is widely used in industrial processing.

[0004] Chinese patent number CN 107655001A discloses an intelligent natural gas combustion furnace. This patented technology can significantly improve the mixing uniformity and combustion effect of the natural gas combustion furnace during the premixing process, thereby improving the overall working performance of the natural gas combustion furnace. However, when the above furnace sleeve is burning, the hot smoke generated by it is mostly directly discharged to the outside through the upper exhaust pipe. This design cannot fully utilize the large amount of heat contained in the hot smoke. Direct discharge will cause heat loss and increase heat waste, which is not in line with the concept of energy saving and environmental protection advocated in recent years. Secondly, when it is used indoors, the exhaust mechanism placed on the top is inconvenient to install, and the entire furnace sleeve is also relatively unsightly. At the same time, when the hot gas of the traditional combustion furnace is discharged upward during combustion, the temperature of the panel on the top of the furnace body will be very high, resulting in hotness, which has a great safety hazard when used indoors;

[0005] In addition, the existing natural gas combustion furnace has a single function and a low heat utilization rate. Therefore, in summary, it is necessary to provide a natural gas combustion energy-saving furnace with a downward exhaust type and strong exhaust of exhaust gas. Summary of the invention

[0006] The object of the present invention is to provide a natural gas combustion energy-saving furnace with downward exhaust and strong exhaust of exhaust gas, so as to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a natural gas combustion energy-saving furnace with downward exhaust and forced exhaust of exhaust gas, comprising a furnace jacket, a heat storage furnace is arranged inside the furnace jacket, the bottom of the heat storage furnace is fixedly connected with a combustion furnace, a middle section cover is arranged at the connection between the heat storage furnace and the combustion furnace, a movable cover is arranged on the top of the middle section cover, a lower gathering chamber is arranged at the bottom of the combustion furnace, an upper gathering chamber is connected to the top of the furnace jacket, a plurality of heat circulation pipes are fixedly connected to the top of the lower gathering chamber, each of the heat circulation pipes passes through the furnace jacket and the heat storage furnace, and the upper gathering chamber and the lower gathering chamber are connected to each other through the heat circulation pipe, and the bottom of the lower gathering chamber A support base is fixedly provided, and the bottom of the combustion furnace passes through the lower gathering chamber and the support base and is fixedly connected with a furnace pot. A hollow groove is opened at the bottom of the support base, and a heat storage coil is fixedly provided in the middle of the hollow groove, and the heat storage coil is wound around the furnace pot. The lower gathering chamber is connected with the heat storage coil through a heat connecting pipe that penetrates the support base, and the air outlet end of the heat storage coil is fixedly connected with a heat collecting box. An induced draft fan is provided on one side of the heat collecting box, and the air outlet of the heat collecting box is fixedly connected with the air inlet end of the induced draft fan through a pipeline, and the air outlet end of the induced draft fan is fixedly connected with a heat exhaust pipe, and the heat exhaust pipe passes through the support base and is placed on the outside of the support base.

[0008] As a preferred technical solution of the present invention, multiple groups of heat dissipation mechanisms are arranged on the outside of the combustion furnace, each group of the heat dissipation mechanisms includes two heat dissipation fins embedded in the outer wall of the combustion furnace, and the two heat dissipation fins are arranged in a staggered and symmetrical manner.

[0009] As a preferred technical solution of the present invention, multiple groups of air intake mechanisms are arranged on the outside of the combustion furnace, each group of the air intake mechanisms includes multiple air intake holes symmetrically distributed on the outer wall of the combustion furnace, and the air intake mechanisms are placed between two heat sinks of each group of heat dissipation mechanisms.

[0010] As a preferred technical solution of the present invention, the two heat sinks of each group of the heat dissipation mechanism pass through the inner wall of the combustion furnace and form a heat channel.

[0011] As a preferred technical solution of the present invention, a plurality of equally spaced heat outlet holes are provided around the top of the middle section cover, and the heat outlet holes are directly opposite to the position of the heat channel. A plurality of secondary oxygen inlet holes are provided on the outer wall of the heat storage furnace, and the secondary oxygen inlet holes are directly opposite to the position of the heat channel.

[0012] As a preferred technical solution of the present invention, a movable cover is hinged at the circular groove in the middle of the top of the middle section cover, a swivel is fixedly provided on one side of the top of the middle section cover, a movable shaft is rotatably provided on the inner wall of the swivel, a fixing plate is fixedly provided on the middle part of the outer wall of the movable shaft, the fixing plate is fixedly connected to the movable cover, one end of the movable shaft passes through the combustion furnace and the furnace sleeve, and is fixedly connected with a handle.

[0013] As a preferred technical solution of the present invention, two air inlet pipes are fixedly connected to one side of the stove, and an ignition groove is provided in the middle of the top of the stove.

[0014] As a preferred technical solution of the present invention, triangular plates are fixedly provided at the four corners of the hollow groove, an adjusting screw is inserted through the top of each triangular plate, and the outer side of the adjusting screw is threadedly connected to a supporting foot.

[0015] As a preferred technical solution of the present invention, an upper cover is fixedly provided on the top of the upper gathering chamber, and heat outlet grooves opposite to each other are provided on the top of the upper cover and the interior of the upper gathering chamber, and a sealing plate is provided on the inner wall cover of the heat outlet groove located on the top of the upper cover.

[0016] Technical effects and advantages of the present invention:

[0017] (1) The present invention provides an upper gathering chamber and a lower gathering chamber, and the two are interconnected through a heat circulation pipe. The heat circulation pipe realizes the exchange of combustion heat in the furnace, and then circulates through the heat storage coil arranged at the bottom of the support seat, and is discharged from the bottom of the furnace jacket by the induced draft fan and the heat exhaust pipe, thereby abandoning the traditional upward exhaust method of the combustion furnace, effectively avoiding the phenomenon of the upper panel getting hot, and at the same time, the support seat also carries a part of the heat, which can be used for heating, etc., thereby effectively reducing the heat loss, greatly improving the utilization rate of heat, and saving energy and protecting the environment;

[0018] (2) By setting up multiple groups of heat dissipation mechanisms, the heat generated by the outer wall of the furnace jacket can be discharged, and two related staggered heat dissipation fins form a heat channel, which is beneficial to prevent heat from overflowing instantly when taking heat. By setting up a rotating mechanism composed of a movable shaft, a handle, and a rotating ring, the movable cover can be opened and closed according to actual needs to adjust the heat output size, thereby realizing flexible switching of the actual required heat size, thereby greatly improving the functionality and practicality of the natural gas combustion furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0021] Figure 3 It is a schematic diagram of the furnace jacket structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the present invention located in a combustion furnace;

[0023] Figure 5 It is a schematic diagram of the positions of the heat outlet holes and the heat channels of the present invention;

[0024] Figure 6 It is a schematic diagram of the bottom structure of the support base of the present invention.

[0025] In the figure: 1. furnace sleeve; 2. upper cover; 3. upper gathering chamber; 4. heat storage furnace; 5. heat channel; 6. middle section cover; 7. movable cover; 8. combustion furnace; 9. heat sink; 10. air inlet; 11. lower gathering chamber; 12. heat circulation pipe; 13. furnace pot; 14. support seat; 15. heat storage coil; 16. thermal connecting pipe; 17. induced draft fan; 18. heat exhaust pipe; 19. support foot; 20. triangle plate; 21. adjusting screw; 22. heat collecting box; 23. air inlet pipe; 24. fixing plate; 25. movable shaft; 26. handle; 27. heat outlet; 28. ignition slot; 29. ​​heat outlet slot; 30. sealing plate; 31. swivel; 32. secondary oxygen inlet. DETAILED DESCRIPTION

[0026] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0027] The present invention provides Figure 1-6A natural gas combustion energy-saving furnace with downward exhaust and strong exhaust of exhaust gas is shown, comprising a furnace jacket 1, a heat storage furnace 4 is arranged inside the furnace jacket 1, and a combustion furnace 8 is fixedly connected to the bottom of the heat storage furnace 4. The furnace jacket 1 can allow the heat generated by the heat storage furnace 4 and the combustion furnace 8 to overflow through the gap in the lower part of the jacket to meet people's heating living habits. A middle section cover 6 is provided at the connection between the heat storage furnace 4 and the combustion furnace 8, and a movable cover 7 is provided on the top of the middle section cover 6. A lower gathering chamber 11 is provided at the bottom of the combustion furnace 8. The top of the furnace jacket 1 is connected to an upper gathering chamber 3, and the top of the lower gathering chamber 11 is fixedly connected to a plurality of heat circulation pipes 12, each heat circulation pipe 12 passes through the furnace jacket 1 and the heat storage furnace 4, and the upper gathering chamber 3 and the lower gathering chamber 11 are connected to each other through the heat circulation pipe 12, a support seat 14 is fixedly provided at the bottom of the lower gathering chamber 11, and the bottom of the combustion furnace 8 passes through the lower gathering chamber 11 and the support seat 14, and is fixed. A furnace pot 13 is connected, and two air inlet pipes 23 are fixedly connected on one side of the furnace pot 13. An ignition groove 28 is provided in the middle of the top of the furnace pot 13. A hollow groove is provided at the bottom of the support seat 14. A heat storage coil 15 is fixedly provided in the middle of the hollow groove. The heat storage coil 15 is arranged around the furnace pot 13. The lower gathering chamber 11 is connected with the heat storage coil 15 through a heat connecting pipe 16 that penetrates the support seat 14. The air outlet end of the heat storage coil 15 is fixedly connected with a heat collecting box 22. An induced draft fan 17 is provided on one side of the heat collecting box 22, and the air outlet of the heat collecting box 22 is fixedly connected with the air inlet end of the induced draft fan 17 through a pipeline. The air outlet end of the induced draft fan 17 is fixedly connected with a heat exhaust pipe 18, which passes through the support seat 14 and is placed on the outside of the support seat 14. An induced draft fan switch is provided on one side of the top of the support seat 14, and the induced draft fan 17 is electrically connected to an external power supply through the induced draft fan switch.

[0028] according to Figure 2 , Figure 4 and Figure 5 As shown, multiple groups of heat dissipation mechanisms are arranged on the outside of the combustion furnace 8, each group of heat dissipation mechanisms includes two heat dissipation fins 9 embedded in the outer wall of the combustion furnace 8, and the two heat dissipation fins 9 are staggered and symmetrically arranged, multiple groups of air intake mechanisms are arranged on the outside of the combustion furnace 8, each group of air intake mechanisms includes multiple air intake holes 10 symmetrically distributed on the outer wall of the combustion furnace 8, and the air intake mechanism is placed between the two heat dissipation fins 9 of each group of heat dissipation mechanisms, the two heat dissipation fins 9 of each group of heat dissipation mechanisms pass through the inner wall of the combustion furnace 8 and form a heat channel 5, a plurality of equidistantly distributed heat outlet holes 27 are provided around the top of the middle section cover 6, the heat outlet holes 27 are opposite to the position of the heat channel 5, a plurality of secondary oxygen inlet holes 32 are provided on the outer wall of the heat storage furnace 4, the secondary oxygen inlet holes 32 are opposite to the position of the heat channel 5, when the unburned gas in the combustion furnace 8 enters the heat storage furnace 4, oxygen can be introduced through the secondary oxygen inlet holes 32 for re-combustion, to ensure sufficient combustion, and to ensure that only carbon dioxide and water are discharged without combustible gas.

[0029] according to Figure 4As shown, a movable cover 7 is hinged at a circular groove in the middle of the top of the middle section cover 6, a swivel ring 31 is fixedly provided on one side of the top of the middle section cover 6, a movable shaft 25 is rotatably provided on the inner wall of the swivel ring 31, a fixing plate 24 is fixedly provided in the middle of the outer wall of the movable shaft 25, the fixing plate 24 is fixedly connected to the movable cover 7, one end of the movable shaft 25 passes through the combustion furnace 8 and the furnace sleeve 1, and is fixedly connected to a handle 26.

[0030] according to Figure 1 and Figure 6 As shown, triangular plates 20 are fixed at the four corners of the hollow groove, an adjusting screw 21 is inserted at the top of each triangular plate 20, the outer side of the adjusting screw 21 is threadedly connected to a supporting foot 19, an upper cover 2 is fixed at the top of the upper gathering chamber 3, and heat outlet grooves 29 are oppositely positioned at the top of the upper cover 2 and the interior of the upper gathering chamber 3, and a sealing plate 30 is provided on the inner wall cover of the heat outlet groove 29 located at the top of the upper cover 2.

[0031] Working principle of the present invention: When using the natural gas combustion energy-saving furnace with downward exhaust type forced exhaust in the present design, natural gas is first input into the furnace pot 13 through the external natural gas delivery mechanism and the air inlet pipe 23, and then the furnace pot 13 is ignited by aiming the pulse igniter at the ignition slot 28. During combustion, the hot smoke in the combustion furnace 8 can be discharged to the heat storage furnace 4 through the heat channel 5 and the heat outlet hole 27 formed by the heat sink 9, and the heat storage furnace 4 then discharges the hot smoke into the upper gathering chamber 3. At this time, multiple heat circulation pipes 12 transport the hot smoke in the upper gathering chamber 3 to the lower gathering chamber 11. The heat in the lower gathering chamber 11 is then transported to the heat storage coil 15 located in the support seat 14 through the heat connecting pipe 16. The heat circulates in the heat storage coil 15 once, so that the support seat 1 4 enters the heat collecting box 22 with a part of the heat, and at this time, the induced draft fan 17 is turned on, and the induced draft fan 17 extracts the heat of the heat collecting box 22 and discharges the heat through the heat exhaust pipe 18. In the whole hot smoke circulation process, a large amount of heat in the smoke has been mostly utilized and consumed, which can effectively reduce the heat loss, greatly improve the heat utilization rate, and save energy and protect the environment. In addition, during the combustion process of the combustion furnace 8, if more heat is needed, the handle 26 can be turned to drive the movable shaft 25 to rotate, and the movable shaft 25 rotates through the fixed plate 24 and opens the movable cover 7, so that the circular groove covered by the movable cover 7 and the multiple heat outlet holes 27 are discharged at the same time, increasing the heat discharge. At this time, the sealing plate 30 can be removed, and the objects to be heated can be placed in the heat outlet groove 29.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can all be customized according to the description and the drawings.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A natural gas combustion energy-saving furnace with downward exhaust and strong exhaust, comprising a furnace jacket (1), a heat storage furnace (4) being arranged inside the furnace jacket (1), a combustion furnace (8) being fixedly connected to the bottom of the heat storage furnace (4), It is characterized by: A middle cover (6) is provided at the connection point between the heat storage furnace (4) and the combustion furnace (8), a movable cover (7) is provided on the top of the middle cover (6), a lower gathering chamber (11) is provided at the bottom of the combustion furnace (8), the top of the furnace jacket (1) is connected to the upper gathering chamber (3), the top of the lower gathering chamber (11) is fixedly connected to a plurality of heat circulation pipes (12), each of the heat circulation pipes (12) passes through the furnace jacket (1) and the heat storage furnace (4), and the upper gathering chamber (3) and the lower gathering chamber (11) are connected to each other through the heat circulation pipes (12), a support seat (14) is fixedly provided at the bottom of the lower gathering chamber (11), the bottom of the combustion furnace (8) passes through the lower gathering chamber (11) and the support seat (14), and is fixedly connected to a furnace pot (13) The support seat (14) has a hollow groove at the bottom, a heat storage coil (15) is fixedly arranged in the middle of the hollow groove, the heat storage coil (15) is arranged around the furnace pot (13), the lower gathering chamber (11) is connected to the heat storage coil (15) via a heat connecting pipe (16) penetrating the support seat (14), the air outlet end of the heat storage coil (15) is fixedly connected to a heat collecting box (22), a draft fan (17) is provided on one side of the heat collecting box (22), and the air outlet of the heat collecting box (22) is fixedly connected to the air inlet end of the draft fan (17) via a pipeline, the air outlet end of the draft fan (17) is fixedly connected to a heat exhaust pipe (18), and the heat exhaust pipe (18) passes through the support seat (14) and is placed on the outside of the support seat (14); A plurality of heat dissipation mechanisms are arranged on the outer side of the combustion furnace (8), each group of the heat dissipation mechanisms comprising two heat dissipation fins (9) embedded in the outer wall of the combustion furnace (8), and the two heat dissipation fins (9) are arranged in a staggered and symmetrical manner, and the two heat dissipation fins (9) of each group of the heat dissipation mechanisms pass through the inner wall of the combustion furnace (8) to form a heat channel (5), a movable cover (7) is hingedly connected to a circular groove in the middle of the top of the middle section cover (6), a rotating ring (31) is fixedly arranged on one side of the top of the middle section cover (6), a movable shaft (25) is rotatably arranged on the inner wall of the rotating ring (31), a fixing plate (24) is fixedly arranged in the middle of the outer wall of the movable shaft (25), and the fixing plate (24) is fixedly connected to the movable cover (7), and one end of the movable shaft (25) passes through the combustion furnace (8) and the furnace sleeve (1) and is fixedly connected to a handle (26).

2. The natural gas combustion energy-saving furnace with downward exhaust and strong exhaust according to claim 1 is characterized in that: A plurality of groups of air intake mechanisms are arranged on the outside of the combustion furnace (8), each group of the air intake mechanisms comprising a plurality of air intake holes (10) symmetrically distributed on the outer wall of the combustion furnace (8), and the air intake mechanisms are placed between two heat sinks (9) of each group of heat sink mechanisms.

3. The natural gas combustion energy-saving furnace with downward exhaust type strong exhaust according to claim 1 is characterized in that: A plurality of heat outlet holes (27) are provided around the top of the middle cover (6) at equal intervals, and the heat outlet holes (27) are directly opposite to the heat channel (5). A plurality of secondary oxygen inlet holes (32) are provided on the outer wall of the heat storage furnace (4), and the secondary oxygen inlet holes (32) are directly opposite to the heat channel (5).

4. The natural gas combustion energy-saving furnace with downward exhaust type forced exhaust according to claim 1 is characterized in that: One side of the furnace pot (13) is fixedly connected to two air inlet pipes (23), and an ignition slot (28) is provided in the middle of the top of the furnace pot (13).

5. The natural gas combustion energy-saving furnace with downward exhaust and strong exhaust according to claim 1 is characterized in that: Triangular plates (20) are fixedly provided at the four corners of the hollow groove, and an adjusting screw (21) is inserted through the top of each triangular plate (20), and the outer side of the adjusting screw (21) is threadedly connected to a supporting foot (19).

6. The natural gas combustion energy-saving furnace with downward exhaust type forced exhaust according to claim 1 is characterized in that: An upper cover (2) is fixedly provided on the top of the upper gathering chamber (3), and heat outlet grooves (29) are provided on the top of the upper cover (2) and inside the upper gathering chamber (3) in opposite positions, and a sealing plate (30) is provided on the inner wall cover of the heat outlet groove (29) located on the top of the upper cover (2).

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