Fuel gas heating furnace

Abstract

A fuel gas heating furnace includes a gas chamber assembly, a heat transfer assembly and a radiation assembly. The gas chamber assembly includes a base, a supporting plate assembly, an outer cover plate, a door panel mechanism and a combustion device. The supporting plate assembly and the base are arranged vertically along the upright direction. The base, the supporting plate assembly, the outer cover plate and the door panel mechanism define a gas containing chamber. The combustion device has a flame outlet. The heat transfer assembly is positioned above the gas chamber assembly along the upright direction and includes grid members, first supporting pillars and a cover tube. The lower end of the cover tube faces the flame outlet. The lower ends of the first supporting pillars are connected to the supporting plate assembly.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the priority benefits of China application serial no. 2025100982662, filed on Jan. 22, 2025. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.BACKGROUND OF THE INVENTIONField of the Invention

[0002] The invention relates to the technical field of fuel gas heating, in particular to a fuel gas heating furnace.Description of the Related Art

[0003] A fuel gas heating furnace is a radiant heating device used to produce thermal radiation for outdoor use. Its working principle is to burn liquefied petroleum gas (LPG), propane, or butane through a burner and direct the flame to a perforated metal mesh. The hot air is then radiated from the surface of the metal mesh in a circular pattern to the surrounding area.

[0004] In the usage feedback of the hot air flowing out of the fuel gas heating furnace, on the one hand, there will be a problem of poor combustion effect, that is, the sufficient combustion effect cannot be achieved and the secondary combustion cannot be achieved. On the other hand, the hot air is directly ejected from the top of the furnace body, resulting in a chaotic airflow phenomenon with poor heating effect, that is, the hot air is ejected directly to the outside of the fuel gas heating furnace at a faster speed and uneven heat. Therefore, how to improve the combustion effect and heating effect of the fuel gas heating furnace has become a problem to be solved urgently by people in this field.SUMMARY OF THE INVENTION

[0005] The purpose of the invention is to provide a fuel gas heating furnace to solve the problems mentioned in the background technology.

[0006] To solve the technical problems, the invention provides the following technical solution.

[0007] In one embodiment, a fuel gas heating furnace comprises:

[0008] a gas chamber assembly including a base, a supporting plate assembly, an outer cover plate, a door panel mechanism, and a combustion device, wherein the supporting plate assembly and the base are arranged vertically along the upright direction of the fuel gas heating furnace, the base, the supporting plate assembly, the outer cover plate, and the door panel mechanism define a gas containing chamber, and the combustion device has a flame outlet;

[0009] a heat transfer assembly positioned above the gas chamber assembly along the upright direction and including a plurality of grid members, a plurality of first supporting pillars, and a cover tube, wherein the lower end of the cover tube faces the flame outlet, the lower ends of the first supporting pillars are connected to the supporting plate assembly, and the grid members are arranged around the cover tube and respectively interspersed between the first supporting pillars; and

[0010] a radiation assembly arranged above the heat transfer assembly along the upright direction and including a flow guiding mechanism, a heat dissipation cover, a top cover mechanism, and a flow limiting plate, wherein the flow guiding mechanism has a bottom plate and a peripheral wall connected around the bottom plate, the peripheral wall is provided with a plurality of outflow holes, the upper ends of the first support pillars are connected to the bottom plate, the heat dissipation cover faces the upper end of the cover tube, is located inside the flow guiding mechanism, and surrounded by the peripheral wall, the top cover mechanism covers the upper side of the peripheral wall along the upright direction, the flow limiting plate is arranged above the peripheral wall along the upright direction and surrounds the top cover mechanism, and the flow limiting plate extends outward along a first direction perpendicular to the upright direction.

[0011] In one embodiment, a surface of the flow limiting plate and a surface of the flow guiding mechanism are each coated with a first heat-resistant powder layer. Surfaces of the first supporting pillars and surfaces of the grid members are each coated with a second heat-resistant powder layer. The temperature resistance of the first heat-resistant powder layer is higher than that of the second heat-resistant powder layer.

[0012] In one embodiment, the surface of the heat dissipation cover is provided with a plurality of mesh holes suitable for hot gas outflow.

[0013] In one embodiment, the top cover mechanism includes a cover body and a side plate. The cover body has a top plate and a side wall connected around the top plate. The side plate is connected around the lower end of the side wall and forms an installation groove with the lower end of the side wall. The installation groove is used to install the flow limiting plate.

[0014] In one embodiment, the cover body and the bottom plate and the peripheral wall of the flow guiding mechanism together form a retention space to retain the hot gas flowing out from the heat dissipation cover.

[0015] In one embodiment, the flow limiting plate includes a plurality of arc-shaped plates spliced into a ring shape, and the whole is an inverted cone. The arc-shaped plate is formed by extending upward in the upright direction and bending toward the first direction.

[0016] In one embodiment, the arc-shaped plate is inserted into the installation groove. An inserting piece is fixed at one jointing side of the arc-shaped plate. The inserting piece has the same curvature as the arc-shaped plate and protrudes from the upper surface of the arc-shaped plate. The upper surface of the inserting piece is provided with a female slot. A male buckle is fixed at the upper surface of the other jointing side, without the inserting piece, of the arc-shaped plate corresponding to the position of the female slot. The male buckle of the arc-shaped plate is inserted into the female slot of another arc-shaped plate to form the connection in the flow limiting plate, which not only saves the use of screws, but also makes the overall appearance more beautiful based on the use of no screws.

[0017] In one embodiment, the supporting plate assembly includes an outer supporting plate and an inner supporting plate. The grid member includes at least one isolation part. The top of the isolation part along the upright direction is connected with a first buckle plate, and the bottom of the isolation part is connected with a second buckle plate. The first buckle plate is connected to the surface of the bottom plate of the flow guiding mechanism, and the second buckle plate is connected to the upper surface of the inner supporting plate.

[0018] In one embodiment, the door panel mechanism includes a rotating door, a plug rod, a first limiting block, and a second limiting block. The rotating door is rotatably connected to one side of an outer wall of the outer cover plate to form a rotating connection point. A side of the rotating door away from the rotating connection point is provided with a ring groove. The top of the rotating door is provided with an operation opening suitable for adjusting the combustion device. Each of the first limiting block and the second limiting block includes a long section and a short section fixed along the length direction of the long section. The first limiting block is fixed on an inner wall of the rotating door directly below the ring groove, and the second limiting block is fixed on a side wall of the outer cover plate directly below the first limiting block. The two short sections are aligned in a straight line when the rotating door is closed. The surfaces of the two short sections on the straight line are each provided with a plug hole, and the plug rod is inserted into the plug hole.

[0019] In one embodiment, the outer supporting plate is fixed to the top of the outer cover plate. A plate surface of the inner supporting plate is supportingly connected to the grid member, the cover tube and the first supporting pillars. A positioning assembly is provided between the inner supporting plate and the outer supporting plate. The positioning assembly includes a set of sliding rods fixed on a sliding surface of the inner supporting plate. A set of sliding rails extending along the upright direction is fixed on an inner wall of the outer cover plate corresponding to the set of sliding rods. A notch is provided at the upper portion of the set of the sliding rails close to the outer supporting plate. A sliding baffle, set along the first direction, is slidably connected inside the notch.

[0020] Compared with the prior art, the embodiments of the present invention adopts the flow guiding mechanism and the heat dissipation cover. The flow guiding mechanism has the outflow holes. The surface of the heat dissipation cover is provided with the mesh holes suitable for hot air outflow. After the hot air is burned in the cover tube, it will flow out from the heat dissipation cover and enter into the retention space between the heat dissipation cover and the flow guiding mechanism. The hot air will be more fully burned or secondarily burned in the retention space, which effectively improves the heat generation efficiency of the gas. The hot air will be evenly mixed in the retention space and slowly flow out from the outflow holes of the flow guiding mechanism to the outside of the fuel gas heating furnace. With the guidance of the flow limiting plate, the hot air can surround the heat transfer assembly to achieve the heating effect.

[0021] Since the hot air is dissipated from the radiation assembly to the outside of the fuel gas heating furnace more evenly, and the speed at which the hot air flows out to the outside of the fuel gas heating furnace is also slower, it can effectively surround the heat transfer assembly within an appropriate distance and for a longer period of time, which slows down the dissipation rate of the hot air outside the fuel gas heating furnace. This solves the problem that in the past, the hot air was directly sprayed from the heat dissipation cover to the outside of the fuel gas heating furnace at a fast speed and with uneven heat, resulting in a fast dissipation rate of the hot air outside the fuel gas heating furnace and poor heating effect.BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification. The drawings illustrate examples of the disclosure and, together with the description, serve to explain the principles of the disclosure.

[0023] FIG. 1 is a schematic diagram of the overall structure of the embodiment of the present invention.

[0024] FIG. 2 is a schematic diagram of the left view of the structure of FIG. 1.

[0025] FIG. 3 is a schematic diagram of the front view of the structure of FIG. 1.

[0026] FIG. 4 is a schematic diagram of the top view of the structure of FIG. 1.

[0027] FIG. 5 is a schematic diagram of the disassembled structure of the top cover mechanism and the flow guiding mechanism.

[0028] FIG. 6 is a schematic diagram of the explosion structure of FIG. 1.

[0029] FIG. 7 is an enlarged schematic diagram of region A in FIG. 6.

[0030] FIG. 8 is an enlarged schematic diagram of region B in FIG. 6.

[0031] FIG. 9 is a schematic diagram of the door panel mechanism.

[0032] FIG. 10 is an enlarged schematic diagram of region C in FIG. 9.

[0033] FIG. 11 is a schematic cross-sectional view of FIG. 1.

[0034] FIG. 12 is a schematic diagram of the positioning assembly.

[0035] FIG. 13 is an enlarged schematic diagram of region D in FIG. 12.DETAILED DESCRIPTION OF THE INVENTION

[0036] In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof, and in which are shown by way of illustration specific embodiments in which the disclosure may be practiced. In this regard, directional terminology, such as “top,”“bottom,”“front,”“back,” etc., is used with reference to the orientation of the Figure(s) being described. The components of the disclosure can be positioned in a number of different orientations. As such, directional terminology is used for purposes of illustration and is in no way limiting. On the other hand, the drawings are only schematic, and the sizes of components may be exaggerated for clarity. It is to be understood that other embodiments may be utilized, and structural changes may be made without departing from the scope of the disclosure. Also, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting. The use of “including,”“comprising,” or “having” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless limited otherwise, the terms “connected,”“coupled,” and “mounted” and variations thereof herein are used broadly and encompass direct and indirect connections, couplings, and mountings.

[0037] Similarly, the terms “facing,”“faces” and variations thereof herein are used broadly and encompass direct and indirect facing, and “adjacent to” and variations thereof herein are used broadly and encompass directly and indirectly “adjacent to”. Therefore, the description of “A” component facing “B” component herein may contain the situations that “A” component directly faces “B” component, or one or more additional components are between “A” component and “B” component. Also, the description of “A” component “adjacent to”“B” component herein may contain the situations that “A” component “component is directly “adjacent to”“B” component or one or more additional components are between “A” component and “B” component. Accordingly, the drawings and descriptions will be regarded as illustrative in nature and not as restrictive.

[0038] Please refer to FIG. 1 to FIG. 13, the embodiment of the present invention provides a fuel gas heating furnace. The fuel gas heating furnace including a gas chamber assembly, a heat transfer assembly, and a radiation assembly, which is used to achieve a fuel gas heating effect. The gas chamber assembly is used to complete the placement and use of the combustion device 4. The heat transfer assembly and the gas chamber assembly are telescopically connected. When the fuel gas heating furnace is not used, the gas bottle is taken out, and the heat transfer assembly and the radiation assembly can be moved toward the inside of the gas chamber assembly along the upright direction of the fuel gas heating furnace to form a retracted placement state, so as to solve the problem of the heat transfer assembly and other mechanisms occupying external space. In addition, when the retracted placement is used, dust can be reduced to maintain a certain degree of neatness.

[0039] When the fuel gas heating furnace needs to be used, the heat transfer assembly and the radiation assembly can be moved toward the upper side of the gas chamber assembly along the upright direction of the fuel gas heating furnace, and the positioning assembly 15 is used to cut off and fix the internal slideway, so that the fuel gas heating furnace is in a stretched state. At this state, the gas bottle is connected to the air inlet of the gas chamber assembly. When the flame burns, the heat transfer assembly limits the flame range and conducts heat. In addition, the radiation assembly assists heat transfer to fully realize and enhance the effect of fuel gas heating.

[0040] Referring to FIG. 1 to FIG. 3, the gas chamber assembly includes a base 1, a supporting plate assembly, an outer cover plate 2, a door panel mechanism 3, and a combustion device 4. The supporting plate assembly and the base 1 are arranged vertically along the upright direction of the fuel gas heating furnace. The supporting plate includes an outer supporting plate 5 and an inner supporting plate 6 which are separately arranged for lifting. The base 1, the supporting plate assembly, the outer cover plate 2, and the door panel mechanism define a gas containing chamber, which is used to place the gas bottle, the fuel supply pipeline and the control button for controlling the operation of the fuel supply pipeline. The combustion device 4 has a flame outlet. The heat transfer assembly is arranged above the gas chamber assembly along the upright direction. The heat transfer assembly includes a plurality of grid members 7, a plurality of first supporting pillars 8 and a cover tube. The lower end of the cover tube faces or is directly opposite to the flame outlet.

[0041] The cover tube is usually made of transparent glass. The lower ends of the first supporting pillars 8 are connected to the inner supporting plate 6. The grid members 7 are arranged around the cover tube and respectively interspersed between the first supporting pillars 8. Started by the control button, the gas is ejected from the flame outlet into the inside of the cover tube. In addition, the inner supporting plate 6 includes a plate surface and a sliding surface partially arranged around the bottom of the plate surface. Airflow grooves are evenly arranged on the peripheral side of the plate surface of the inner supporting plate 6 near the flame outlet to facilitate the entry of airflow and promote the combustion effect.

[0042] Referring to FIG. 6, the grid member 7 includes at least one isolation part 701. Referring to FIG. 1, the isolation part 701 includes but is not limited to a grid type and a honeycomb type to prevent the user from being burned by the heat transferred from the surface of the cover tube. The top of the isolation part 701 along the upright direction is connected with a first buckle plate 702. The bottom of the isolation part 701 is connected with a second buckle plate 703. The first buckle plate 702 is connected to the surface of the bottom plate of the flow guiding mechanism 9, and the second buckle plate 703 is connected to the upper surface of the inner supporting plate 6.

[0043] Referring to FIG. 7 and FIG. 8, the first buckle plate 702 and the second buckle plate 703 are respectively connected to the inner supporting plate 6 by screws. The first buckle plate 702 and the second buckle plate 703 are high temperature resistant parts. The first buckle plate 702 is engaged with the upper end of the isolation part 701, and the engaging surface is curved in a semicircle toward the flow guiding mechanism 9. The second buckle plate 703 is engaged with the lower end of the isolation part 701, and the engaging surface is curved in a semicircle toward the surface of the inner supporting plate 6. The bending direction of the engaging surface of the second buckle plate 703 is opposite to the bending direction of the engaging surface of the first buckle plate 702.

[0044] When installing the isolation part 701, first engage the upper end of the isolation part 701 with the first buckle plate 702, then engage the lower end of the isolation part 701 with the second buckle plate 703, and then tighten the screws to complete the locking installation of the isolation part 701. The installation and disassembly is simple and easy to operate.

[0045] Referring to FIG. 12 and FIG. 13, the outer supporting plate 5 is fixed to the top of the outer cover plate 2. A plate surface of the inner supporting plate 6 is supportingly connected to the grid members 7, the cover tube and the first supporting pillars 8. A positioning assembly 15 is provided between the inner supporting plate 6 and the outer supporting plate 5. The positioning assembly 15 includes a set of sliding rods 1502 evenly fixed on a sliding surface of the inner supporting plate 6. A set of sliding rails 1501 extending along the upright direction of the fuel gas heating furnace is fixed on an inner wall of the outer cover plate 2 corresponding to the set of sliding rods 1502. A frame middle tube 1503 is fixedly connected between the set of sliding rails 1501 and the inner wall of the outer cover plate 2. A notch is provided at the upper portion of the set of the sliding rails 1501 close to the outer supporting plate 5. A sliding baffle 1506, set along the first direction, is slidably connected inside the notch.

[0046] Referring to FIG. 3, a positioning lever 1504 is fixedly connected to the side of the sliding baffle 1506 away from the inside of the outer cover plate 2. A fixed baffle 1505 is fixedly connected between the positioning lever 1504 and the sliding baffle 1506. A paddle slide groove is provided on the surface of the outer cover plate 2 where the positioning lever 1504 passes through, so that the positioning lever 1504 can drive the sliding baffle 1506 to slide on the frame middle tube 1503 through the fixed baffle 1505.

[0047] When executing the stretched state for use of the heat transfer assembly and the radiation assembly, first pull the grid member 7 or the first supporting pillar 8 to make the inner supporting plate 6 move up in the upright direction, the sliding rod 1502 at the inner supporting plate 6 moves to above the notch of the sliding rail 1501, and then the positioning lever 1504 drives the sliding baffle 1506 to move and support the lower end of the sliding rod 1502, completing the upward movement and the stretched state of the heat transfer assembly and the radiation assembly. The reverse operation completes the retracted placement state.

[0048] Referring to FIG. 5 and FIG. 11, the radiation assembly is arranged along the upright direction above the heat transfer assembly. The radiation assembly includes the flow guiding mechanism 9, the heat dissipation cover 16, the top cover mechanism 10, and the flow limiting plate 11. The flow guiding mechanism 9 has a bottom plate and a peripheral wall connected around the bottom plate. The peripheral wall is provided with a plurality of outflow holes. The upper ends of the first support pillars 8 are connected to the bottom plate. The heat dissipation cover 16 faces the upper end of the cover tube, is located inside the flow guiding mechanism 9, and surrounded by the peripheral wall. The top cover mechanism 10 covers the upper side of the peripheral wall along the upright direction. The flow limiting plate 11 is arranged above the peripheral wall along the upright direction and surrounds the top cover mechanism 10. The flow limiting plate 11 extends outward along a first direction perpendicular to the upright direction.

[0049] A surface of the flow limiting plate 11 and a surface of the flow guiding mechanism 9 are each coated with a first heat-resistant powder layer. Surfaces of the first supporting pillars 8 and surfaces of the grid members 7 are each coated with a second heat-resistant powder layer. The temperature resistance of the first heat-resistant powder layer is higher than that of the second heat-resistant powder layer. The design saves the use cost of the coating material. Exemplarily, the heat-resistant powder material includes but is not limited to alumina, silicate, aluminum silicate, magnesium silicate, etc.

[0050] The surface of the heat dissipation cover 16 is provided with a plurality of mesh holes suitable for hot gas outflow.

[0051] The top cover mechanism 10 includes a cover body 101 and a side plate 102. The cover body 101 is fixedly connected to a heat insulation plate 12 disposed on the top of the inner wall of the heat dissipation cover 16 by bolts. The cover body 101 and the bottom plate and the peripheral wall of the flow guiding mechanism 9 together form a retention space to retain the hot gas flowing out from the heat dissipation cover 16.

[0052] The flame at the flame outlet is transmitted from the bottom to the top of the cover tube. The hot air flow from the flame at the top enters the interior of the heat dissipation cover 16 and accumulates. The hot air flow at the top is blocked by the heat insulation plate 12, so that the hot air flow will be retained in the interior of the heat dissipation cover 16, forming an air flow buffer space to prevent it from being directly ejected from the top of the cover tube. At the same time, the gas in the cover tube is more fully burned under the retention effect, producing an effect similar to secondary combustion, effectively improving the heat generation efficiency of the gas.

[0053] In addition, when the internal pressure of the heat dissipation cover 16 continues to increase, the hot air will overflow from the mesh holes of the heat dissipation cover 16. After the hot air is burned in the cover tube, it will flow out of the heat dissipation cover 16 and enter the retention space between the heat dissipation cover 16 and the flow guiding mechanism 9. The hot air will be more fully burned or secondary burned in the retention space, which effectively improves the heat generation efficiency of the gas. The hot gas will also be evenly mixed in the retention space and flow out from the multiple outflow holes of the flow guiding mechanism 9 to the outside of the fuel gas heating furnace more slowly, and with the guidance of the flow limiting plate 11, the hot air can surround the heat transfer assembly to achieve a heating effect.

[0054] Since the hot air is dissipated from the radiation assembly to the outside of the fuel gas heating furnace more evenly and the speed at which the hot air flows out to the outside of the fuel gas heating furnace is also slower, it can effectively surround the heat transfer assembly within an appropriate distance and for a longer period of time, slowing down the dissipation rate of the hot air outside the fuel gas heating furnace. This solves the problem that the hot air was directly sprayed from the heat dissipation cover 16 to the outside of the fuel gas heating furnace at a faster speed and with uneven heat, resulting in a faster dissipation rate of the hot air outside fuel gas heating furnace and poor heating effect.

[0055] Due to the setting of the mesh holes, the size of the mesh hole is much smaller than the size of the outflow hole, and the outflow pressure of the hot air flow is weakened in turn under the setting of the mesh holes and the outflow holes, so that the outflow air flow pressure is weakened, and the hot air flow will flow out slowly and orderly, reducing the ejection force of the hot air flow and effectively improving the safety of use.

[0056] The cover body 10 has a top plate and a side wall connected around the top plate. The side plate 102 is connected around the lower end of the side wall and forms an installation groove with the lower end of the side wall. The installation groove is used to install the flow limiting plate 11.

[0057] The flow limiting plate 11 includes a plurality of arc-shaped plates 111 spliced into a ring shape. The arc-shaped plate 111 is formed by extending upward in the upright direction and bending toward the first direction, that is, the whole is an inverted cone, and no screws are used for connection of the arc-shaped plates 111. The arc-shaped plate 111 is inserted into the installation groove. An inserting piece 112 is fixed at one jointing side of the arc-shaped plate 111. The inserting piece 112 has the same curvature as the arc-shaped plate 111 and protrudes from the upper surface of the arc-shaped plate 111.

[0058] The upper surface of the inserting piece 112 is provided with a female slot 113. A male buckle 114 is fixed at the upper surface of the other jointing side, without the inserting piece 112, of the arc-shaped plate 111 corresponding to the position of the female slot 113. The male buckle 114 of the arc-shaped plate 111 is inserted into the female slot 113 of another arc-shaped plate 111 in sequence to form the connection in the flow limiting plate 11, which not only saves the use of screws but also makes the overall appearance more beautiful without the use of screws.

[0059] The size of the flow limiting plate 11 can be selected according to actual usage requirements. After the installed flow limiting plate 11 is inserted into the installation groove, the fixed connection of the arc-shaped plate 111 is completed by providing a fixing plate 13 corresponding to the position and number of the arc-shaped plate 111. The arc surface of the arc-shaped plate 111 allows the hot air flow to expand and adjust the radiation area to a corresponding degree according to the curvature and area size of the arc surface.

[0060] The door panel mechanism 3 includes a rotating door 301, a plug rod 303, a first limiting block 305, and a second limiting block 306. The rotating door 301 is rotatably connected to one side of an outer wall of the outer cover plate 2 to form a rotating connection point. A side of the rotating door 301 away from the rotating connection point is provided with a ring groove 302. The top of the rotating door 301 is provided with an operation opening suitable for adjusting the combustion device 4. Each of the first limiting block 305 and the second limiting block 306 includes a long section and a short section fixed along the length direction of the long section. The first limiting block 305 is fixed on an inner wall of the rotating door 301 directly below the ring groove 302, and the second limiting block 306 is fixed on a side wall of the outer cover plate 2 directly below the first limiting block.

[0061] The two short sections of the first limiting block 305 and the second limiting block 306 are aligned in a straight line when the rotating door 301 is closed. The surfaces of the two short sections on the straight line are each provided with a plug hole, and the plug rod 303 is inserted into the plug hole. The bottom of the plug rod 303 is conical, which facilitates the insertion of the plug rod 303.

[0062] A handle 304 is fixedly connected to one side of the plug rod 303 that passes through the ring groove 302. By moving the handle 304 up and down, the handle 304 will drive the plug rod 303 to move up and down, so that the plug rod 303 is pulled out or inserted into the plug hole, completing the opening or closing of the rotating door 301. In addition, a group of rollers 14 are installed on one side of the base 1 to facilitate moving the fuel gas heating furnace to a preset position.

[0063] The foregoing description of the preferred embodiments of the disclosure has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure to the precise form or to exemplary embodiments disclosed. Accordingly, the foregoing description should be regarded as illustrative rather than restrictive. Obviously, many modifications and variations will be apparent to practitioners skilled in this art. The embodiments are chosen and described in order to best explain the principles of the disclosure and its best mode practical application, thereby enabling persons skilled in the art in the art to understand the disclosure for various embodiments and with various modifications as are suited to the particular use or implementation contemplated. It is intended that the scope of the disclosure be defined by the claims appended hereto and their equivalents in which all terms are meant in their broadest reasonable sense unless otherwise indicated. Therefore, the term “the disclosure”, “the present disclosure” or the like does not necessarily limit the claim scope to a specific embodiment, and the reference to particularly preferred exemplary embodiments of the disclosure does not imply a limitation on the disclosure, and no such limitation is to be inferred. The disclosure is limited only by the spirit and scope of the appended claims. Moreover, these claims may refer to use “first”, “second”, etc. following with noun or element. Such terms should be understood as a nomenclature and should not be construed as giving the limitation on the number of the elements modified by such nomenclature unless specific number has been given. The abstract of the disclosure is provided to comply with the rules requiring an abstract, which will allow a searcher to quickly ascertain the subject matter of the technical disclosure of any patent issued from this disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. Any advantages and benefits described may not apply to all embodiments of the disclosure. It should be appreciated that variations may be made in the embodiments described by persons skilled in the art without departing from the scope of the disclosure as defined by the following claims. Moreover, no element and component in the present disclosure is intended to be dedicated to the public regardless of whether the element or component is explicitly recited in the following claims.

[0064] Having described at least one of the embodiments of the claimed invention with reference to the accompanying drawings, it will be apparent to those skills that the invention is not limited to those precise embodiments, and that various modifications and variations can be made in the presently disclosed system without departing from the scope or spirit of the invention.

Examples

Embodiment Construction

[0036]In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof, and in which are shown by way of illustration specific embodiments in which the disclosure may be practiced. In this regard, directional terminology, such as “top,”“bottom,”“front,”“back,” etc., is used with reference to the orientation of the Figure(s) being described. The components of the disclosure can be positioned in a number of different orientations. As such, directional terminology is used for purposes of illustration and is in no way limiting. On the other hand, the drawings are only schematic, and the sizes of components may be exaggerated for clarity. It is to be understood that other embodiments may be utilized, and structural changes may be made without departing from the scope of the disclosure. Also, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not be...

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the priority benefits of China application serial no. 2025100982662, filed on Jan. 22, 2025. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.BACKGROUND OF THE INVENTIONField of the Invention

[0002] The invention relates to the technical field of fuel gas heating, in particular to a fuel gas heating furnace.Description of the Related Art

[0003] A fuel gas heating furnace is a radiant heating device used to produce thermal radiation for outdoor use. Its working principle is to burn liquefied petroleum gas (LPG), propane, or butane through a burner and direct the flame to a perforated metal mesh. The hot air is then radiated from the surface of the metal mesh in a circular pattern to the surrounding area.

[0004] In the usage feedback of the hot air flowing out of the fuel gas heating furnace, on the one hand, there will be a problem of poor combustion effect, that is, the sufficient combustion effect cannot be achieved and the secondary combustion cannot be achieved. On the other hand, the hot air is directly ejected from the top of the furnace body, resulting in a chaotic airflow phenomenon with poor heating effect, that is, the hot air is ejected directly to the outside of the fuel gas heating furnace at a faster speed and uneven heat. Therefore, how to improve the combustion effect and heating effect of the fuel gas heating furnace has become a problem to be solved urgently by people in this field.SUMMARY OF THE INVENTION

[0005] The purpose of the invention is to provide a fuel gas heating furnace to solve the problems mentioned in the background technology.

[0006] To solve the technical problems, the invention provides the following technical solution.

[0007] In one embodiment, a fuel gas heating furnace comprises:

[0008] a gas chamber assembly including a base, a supporting plate assembly, an outer cover plate, a door panel mechanism, and a combustion device, wherein the supporting plate assembly and the base are arranged vertically along the upright direction of the fuel gas heating furnace, the base, the supporting plate assembly, the outer cover plate, and the door panel mechanism define a gas containing chamber, and the combustion device has a flame outlet;

[0009] a heat transfer assembly positioned above the gas chamber assembly along the upright direction and including a plurality of grid members, a plurality of first supporting pillars, and a cover tube, wherein the lower end of the cover tube faces the flame outlet, the lower ends of the first supporting pillars are connected to the supporting plate assembly, and the grid members are arranged around the cover tube and respectively interspersed between the first supporting pillars; and

[0010] a radiation assembly arranged above the heat transfer assembly along the upright direction and including a flow guiding mechanism, a heat dissipation cover, a top cover mechanism, and a flow limiting plate, wherein the flow guiding mechanism has a bottom plate and a peripheral wall connected around the bottom plate, the peripheral wall is provided with a plurality of outflow holes, the upper ends of the first support pillars are connected to the bottom plate, the heat dissipation cover faces the upper end of the cover tube, is located inside the flow guiding mechanism, and surrounded by the peripheral wall, the top cover mechanism covers the upper side of the peripheral wall along the upright direction, the flow limiting plate is arranged above the peripheral wall along the upright direction and surrounds the top cover mechanism, and the flow limiting plate extends outward along a first direction perpendicular to the upright direction.

[0011] In one embodiment, a surface of the flow limiting plate and a surface of the flow guiding mechanism are each coated with a first heat-resistant powder layer. Surfaces of the first supporting pillars and surfaces of the grid members are each coated with a second heat-resistant powder layer. The temperature resistance of the first heat-resistant powder layer is higher than that of the second heat-resistant powder layer.

[0012] In one embodiment, the surface of the heat dissipation cover is provided with a plurality of mesh holes suitable for hot gas outflow.

[0013] In one embodiment, the top cover mechanism includes a cover body and a side plate. The cover body has a top plate and a side wall connected around the top plate. The side plate is connected around the lower end of the side wall and forms an installation groove with the lower end of the side wall. The installation groove is used to install the flow limiting plate.

[0014] In one embodiment, the cover body and the bottom plate and the peripheral wall of the flow guiding mechanism together form a retention space to retain the hot gas flowing out from the heat dissipation cover.

[0015] In one embodiment, the flow limiting plate includes a plurality of arc-shaped plates spliced into a ring shape, and the whole is an inverted cone. The arc-shaped plate is formed by extending upward in the upright direction and bending toward the first direction.

[0016] In one embodiment, the arc-shaped plate is inserted into the installation groove. An inserting piece is fixed at one jointing side of the arc-shaped plate. The inserting piece has the same curvature as the arc-shaped plate and protrudes from the upper surface of the arc-shaped plate. The upper surface of the inserting piece is provided with a female slot. A male buckle is fixed at the upper surface of the other jointing side, without the inserting piece, of the arc-shaped plate corresponding to the position of the female slot. The male buckle of the arc-shaped plate is inserted into the female slot of another arc-shaped plate to form the connection in the flow limiting plate, which not only saves the use of screws, but also makes the overall appearance more beautiful based on the use of no screws.

[0017] In one embodiment, the supporting plate assembly includes an outer supporting plate and an inner supporting plate. The grid member includes at least one isolation part. The top of the isolation part along the upright direction is connected with a first buckle plate, and the bottom of the isolation part is connected with a second buckle plate. The first buckle plate is connected to the surface of the bottom plate of the flow guiding mechanism, and the second buckle plate is connected to the upper surface of the inner supporting plate.

[0018] In one embodiment, the door panel mechanism includes a rotating door, a plug rod, a first limiting block, and a second limiting block. The rotating door is rotatably connected to one side of an outer wall of the outer cover plate to form a rotating connection point. A side of the rotating door away from the rotating connection point is provided with a ring groove. The top of the rotating door is provided with an operation opening suitable for adjusting the combustion device. Each of the first limiting block and the second limiting block includes a long section and a short section fixed along the length direction of the long section. The first limiting block is fixed on an inner wall of the rotating door directly below the ring groove, and the second limiting block is fixed on a side wall of the outer cover plate directly below the first limiting block. The two short sections are aligned in a straight line when the rotating door is closed. The surfaces of the two short sections on the straight line are each provided with a plug hole, and the plug rod is inserted into the plug hole.

[0019] In one embodiment, the outer supporting plate is fixed to the top of the outer cover plate. A plate surface of the inner supporting plate is supportingly connected to the grid member, the cover tube and the first supporting pillars. A positioning assembly is provided between the inner supporting plate and the outer supporting plate. The positioning assembly includes a set of sliding rods fixed on a sliding surface of the inner supporting plate. A set of sliding rails extending along the upright direction is fixed on an inner wall of the outer cover plate corresponding to the set of sliding rods. A notch is provided at the upper portion of the set of the sliding rails close to the outer supporting plate. A sliding baffle, set along the first direction, is slidably connected inside the notch.

[0020] Compared with the prior art, the embodiments of the present invention adopts the flow guiding mechanism and the heat dissipation cover. The flow guiding mechanism has the outflow holes. The surface of the heat dissipation cover is provided with the mesh holes suitable for hot air outflow. After the hot air is burned in the cover tube, it will flow out from the heat dissipation cover and enter into the retention space between the heat dissipation cover and the flow guiding mechanism. The hot air will be more fully burned or secondarily burned in the retention space, which effectively improves the heat generation efficiency of the gas. The hot air will be evenly mixed in the retention space and slowly flow out from the outflow holes of the flow guiding mechanism to the outside of the fuel gas heating furnace. With the guidance of the flow limiting plate, the hot air can surround the heat transfer assembly to achieve the heating effect.

[0021] Since the hot air is dissipated from the radiation assembly to the outside of the fuel gas heating furnace more evenly, and the speed at which the hot air flows out to the outside of the fuel gas heating furnace is also slower, it can effectively surround the heat transfer assembly within an appropriate distance and for a longer period of time, which slows down the dissipation rate of the hot air outside the fuel gas heating furnace. This solves the problem that in the past, the hot air was directly sprayed from the heat dissipation cover to the outside of the fuel gas heating furnace at a fast speed and with uneven heat, resulting in a fast dissipation rate of the hot air outside the fuel gas heating furnace and poor heating effect.BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification. The drawings illustrate examples of the disclosure and, together with the description, serve to explain the principles of the disclosure.

[0023] FIG. 1 is a schematic diagram of the overall structure of the embodiment of the present invention.

[0024] FIG. 2 is a schematic diagram of the left view of the structure of FIG. 1.

[0025] FIG. 3 is a schematic diagram of the front view of the structure of FIG. 1.

[0026] FIG. 4 is a schematic diagram of the top view of the structure of FIG. 1.

[0027] FIG. 5 is a schematic diagram of the disassembled structure of the top cover mechanism and the flow guiding mechanism.

[0028] FIG. 6 is a schematic diagram of the explosion structure of FIG. 1.

[0029] FIG. 7 is an enlarged schematic diagram of region A in FIG. 6.

[0030] FIG. 8 is an enlarged schematic diagram of region B in FIG. 6.

[0031] FIG. 9 is a schematic diagram of the door panel mechanism.

[0032] FIG. 10 is an enlarged schematic diagram of region C in FIG. 9.

[0033] FIG. 11 is a schematic cross-sectional view of FIG. 1.

[0034] FIG. 12 is a schematic diagram of the positioning assembly.

[0035] FIG. 13 is an enlarged schematic diagram of region D in FIG. 12.DETAILED DESCRIPTION OF THE INVENTION

[0036] In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof, and in which are shown by way of illustration specific embodiments in which the disclosure may be practiced. In this regard, directional terminology, such as “top,”“bottom,”“front,”“back,” etc., is used with reference to the orientation of the Figure(s) being described. The components of the disclosure can be positioned in a number of different orientations. As such, directional terminology is used for purposes of illustration and is in no way limiting. On the other hand, the drawings are only schematic, and the sizes of components may be exaggerated for clarity. It is to be understood that other embodiments may be utilized, and structural changes may be made without departing from the scope of the disclosure. Also, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting. The use of “including,”“comprising,” or “having” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless limited otherwise, the terms “connected,”“coupled,” and “mounted” and variations thereof herein are used broadly and encompass direct and indirect connections, couplings, and mountings.

[0037] Similarly, the terms “facing,”“faces” and variations thereof herein are used broadly and encompass direct and indirect facing, and “adjacent to” and variations thereof herein are used broadly and encompass directly and indirectly “adjacent to”. Therefore, the description of “A” component facing “B” component herein may contain the situations that “A” component directly faces “B” component, or one or more additional components are between “A” component and “B” component. Also, the description of “A” component “adjacent to”“B” component herein may contain the situations that “A” component “component is directly “adjacent to”“B” component or one or more additional components are between “A” component and “B” component. Accordingly, the drawings and descriptions will be regarded as illustrative in nature and not as restrictive.

[0038] Please refer to FIG. 1 to FIG. 13, the embodiment of the present invention provides a fuel gas heating furnace. The fuel gas heating furnace including a gas chamber assembly, a heat transfer assembly, and a radiation assembly, which is used to achieve a fuel gas heating effect. The gas chamber assembly is used to complete the placement and use of the combustion device 4. The heat transfer assembly and the gas chamber assembly are telescopically connected. When the fuel gas heating furnace is not used, the gas bottle is taken out, and the heat transfer assembly and the radiation assembly can be moved toward the inside of the gas chamber assembly along the upright direction of the fuel gas heating furnace to form a retracted placement state, so as to solve the problem of the heat transfer assembly and other mechanisms occupying external space. In addition, when the retracted placement is used, dust can be reduced to maintain a certain degree of neatness.

[0039] When the fuel gas heating furnace needs to be used, the heat transfer assembly and the radiation assembly can be moved toward the upper side of the gas chamber assembly along the upright direction of the fuel gas heating furnace, and the positioning assembly 15 is used to cut off and fix the internal slideway, so that the fuel gas heating furnace is in a stretched state. At this state, the gas bottle is connected to the air inlet of the gas chamber assembly. When the flame burns, the heat transfer assembly limits the flame range and conducts heat. In addition, the radiation assembly assists heat transfer to fully realize and enhance the effect of fuel gas heating.

[0040] Referring to FIG. 1 to FIG. 3, the gas chamber assembly includes a base 1, a supporting plate assembly, an outer cover plate 2, a door panel mechanism 3, and a combustion device 4. The supporting plate assembly and the base 1 are arranged vertically along the upright direction of the fuel gas heating furnace. The supporting plate includes an outer supporting plate 5 and an inner supporting plate 6 which are separately arranged for lifting. The base 1, the supporting plate assembly, the outer cover plate 2, and the door panel mechanism define a gas containing chamber, which is used to place the gas bottle, the fuel supply pipeline and the control button for controlling the operation of the fuel supply pipeline. The combustion device 4 has a flame outlet. The heat transfer assembly is arranged above the gas chamber assembly along the upright direction. The heat transfer assembly includes a plurality of grid members 7, a plurality of first supporting pillars 8 and a cover tube. The lower end of the cover tube faces or is directly opposite to the flame outlet.

[0041] The cover tube is usually made of transparent glass. The lower ends of the first supporting pillars 8 are connected to the inner supporting plate 6. The grid members 7 are arranged around the cover tube and respectively interspersed between the first supporting pillars 8. Started by the control button, the gas is ejected from the flame outlet into the inside of the cover tube. In addition, the inner supporting plate 6 includes a plate surface and a sliding surface partially arranged around the bottom of the plate surface. Airflow grooves are evenly arranged on the peripheral side of the plate surface of the inner supporting plate 6 near the flame outlet to facilitate the entry of airflow and promote the combustion effect.

[0042] Referring to FIG. 6, the grid member 7 includes at least one isolation part 701. Referring to FIG. 1, the isolation part 701 includes but is not limited to a grid type and a honeycomb type to prevent the user from being burned by the heat transferred from the surface of the cover tube. The top of the isolation part 701 along the upright direction is connected with a first buckle plate 702. The bottom of the isolation part 701 is connected with a second buckle plate 703. The first buckle plate 702 is connected to the surface of the bottom plate of the flow guiding mechanism 9, and the second buckle plate 703 is connected to the upper surface of the inner supporting plate 6.

[0043] Referring to FIG. 7 and FIG. 8, the first buckle plate 702 and the second buckle plate 703 are respectively connected to the inner supporting plate 6 by screws. The first buckle plate 702 and the second buckle plate 703 are high temperature resistant parts. The first buckle plate 702 is engaged with the upper end of the isolation part 701, and the engaging surface is curved in a semicircle toward the flow guiding mechanism 9. The second buckle plate 703 is engaged with the lower end of the isolation part 701, and the engaging surface is curved in a semicircle toward the surface of the inner supporting plate 6. The bending direction of the engaging surface of the second buckle plate 703 is opposite to the bending direction of the engaging surface of the first buckle plate 702.

[0044] When installing the isolation part 701, first engage the upper end of the isolation part 701 with the first buckle plate 702, then engage the lower end of the isolation part 701 with the second buckle plate 703, and then tighten the screws to complete the locking installation of the isolation part 701. The installation and disassembly is simple and easy to operate.

[0045] Referring to FIG. 12 and FIG. 13, the outer supporting plate 5 is fixed to the top of the outer cover plate 2. A plate surface of the inner supporting plate 6 is supportingly connected to the grid members 7, the cover tube and the first supporting pillars 8. A positioning assembly 15 is provided between the inner supporting plate 6 and the outer supporting plate 5. The positioning assembly 15 includes a set of sliding rods 1502 evenly fixed on a sliding surface of the inner supporting plate 6. A set of sliding rails 1501 extending along the upright direction of the fuel gas heating furnace is fixed on an inner wall of the outer cover plate 2 corresponding to the set of sliding rods 1502. A frame middle tube 1503 is fixedly connected between the set of sliding rails 1501 and the inner wall of the outer cover plate 2. A notch is provided at the upper portion of the set of the sliding rails 1501 close to the outer supporting plate 5. A sliding baffle 1506, set along the first direction, is slidably connected inside the notch.

[0046] Referring to FIG. 3, a positioning lever 1504 is fixedly connected to the side of the sliding baffle 1506 away from the inside of the outer cover plate 2. A fixed baffle 1505 is fixedly connected between the positioning lever 1504 and the sliding baffle 1506. A paddle slide groove is provided on the surface of the outer cover plate 2 where the positioning lever 1504 passes through, so that the positioning lever 1504 can drive the sliding baffle 1506 to slide on the frame middle tube 1503 through the fixed baffle 1505.

[0047] When executing the stretched state for use of the heat transfer assembly and the radiation assembly, first pull the grid member 7 or the first supporting pillar 8 to make the inner supporting plate 6 move up in the upright direction, the sliding rod 1502 at the inner supporting plate 6 moves to above the notch of the sliding rail 1501, and then the positioning lever 1504 drives the sliding baffle 1506 to move and support the lower end of the sliding rod 1502, completing the upward movement and the stretched state of the heat transfer assembly and the radiation assembly. The reverse operation completes the retracted placement state.

[0048] Referring to FIG. 5 and FIG. 11, the radiation assembly is arranged along the upright direction above the heat transfer assembly. The radiation assembly includes the flow guiding mechanism 9, the heat dissipation cover 16, the top cover mechanism 10, and the flow limiting plate 11. The flow guiding mechanism 9 has a bottom plate and a peripheral wall connected around the bottom plate. The peripheral wall is provided with a plurality of outflow holes. The upper ends of the first support pillars 8 are connected to the bottom plate. The heat dissipation cover 16 faces the upper end of the cover tube, is located inside the flow guiding mechanism 9, and surrounded by the peripheral wall. The top cover mechanism 10 covers the upper side of the peripheral wall along the upright direction. The flow limiting plate 11 is arranged above the peripheral wall along the upright direction and surrounds the top cover mechanism 10. The flow limiting plate 11 extends outward along a first direction perpendicular to the upright direction.

[0049] A surface of the flow limiting plate 11 and a surface of the flow guiding mechanism 9 are each coated with a first heat-resistant powder layer. Surfaces of the first supporting pillars 8 and surfaces of the grid members 7 are each coated with a second heat-resistant powder layer. The temperature resistance of the first heat-resistant powder layer is higher than that of the second heat-resistant powder layer. The design saves the use cost of the coating material. Exemplarily, the heat-resistant powder material includes but is not limited to alumina, silicate, aluminum silicate, magnesium silicate, etc.

[0050] The surface of the heat dissipation cover 16 is provided with a plurality of mesh holes suitable for hot gas outflow.

[0051] The top cover mechanism 10 includes a cover body 101 and a side plate 102. The cover body 101 is fixedly connected to a heat insulation plate 12 disposed on the top of the inner wall of the heat dissipation cover 16 by bolts. The cover body 101 and the bottom plate and the peripheral wall of the flow guiding mechanism 9 together form a retention space to retain the hot gas flowing out from the heat dissipation cover 16.

[0052] The flame at the flame outlet is transmitted from the bottom to the top of the cover tube. The hot air flow from the flame at the top enters the interior of the heat dissipation cover 16 and accumulates. The hot air flow at the top is blocked by the heat insulation plate 12, so that the hot air flow will be retained in the interior of the heat dissipation cover 16, forming an air flow buffer space to prevent it from being directly ejected from the top of the cover tube. At the same time, the gas in the cover tube is more fully burned under the retention effect, producing an effect similar to secondary combustion, effectively improving the heat generation efficiency of the gas.

[0053] In addition, when the internal pressure of the heat dissipation cover 16 continues to increase, the hot air will overflow from the mesh holes of the heat dissipation cover 16. After the hot air is burned in the cover tube, it will flow out of the heat dissipation cover 16 and enter the retention space between the heat dissipation cover 16 and the flow guiding mechanism 9. The hot air will be more fully burned or secondary burned in the retention space, which effectively improves the heat generation efficiency of the gas. The hot gas will also be evenly mixed in the retention space and flow out from the multiple outflow holes of the flow guiding mechanism 9 to the outside of the fuel gas heating furnace more slowly, and with the guidance of the flow limiting plate 11, the hot air can surround the heat transfer assembly to achieve a heating effect.

[0054] Since the hot air is dissipated from the radiation assembly to the outside of the fuel gas heating furnace more evenly and the speed at which the hot air flows out to the outside of the fuel gas heating furnace is also slower, it can effectively surround the heat transfer assembly within an appropriate distance and for a longer period of time, slowing down the dissipation rate of the hot air outside the fuel gas heating furnace. This solves the problem that the hot air was directly sprayed from the heat dissipation cover 16 to the outside of the fuel gas heating furnace at a faster speed and with uneven heat, resulting in a faster dissipation rate of the hot air outside fuel gas heating furnace and poor heating effect.

[0055] Due to the setting of the mesh holes, the size of the mesh hole is much smaller than the size of the outflow hole, and the outflow pressure of the hot air flow is weakened in turn under the setting of the mesh holes and the outflow holes, so that the outflow air flow pressure is weakened, and the hot air flow will flow out slowly and orderly, reducing the ejection force of the hot air flow and effectively improving the safety of use.

[0056] The cover body 10 has a top plate and a side wall connected around the top plate. The side plate 102 is connected around the lower end of the side wall and forms an installation groove with the lower end of the side wall. The installation groove is used to install the flow limiting plate 11.

[0057] The flow limiting plate 11 includes a plurality of arc-shaped plates 111 spliced into a ring shape. The arc-shaped plate 111 is formed by extending upward in the upright direction and bending toward the first direction, that is, the whole is an inverted cone, and no screws are used for connection of the arc-shaped plates 111. The arc-shaped plate 111 is inserted into the installation groove. An inserting piece 112 is fixed at one jointing side of the arc-shaped plate 111. The inserting piece 112 has the same curvature as the arc-shaped plate 111 and protrudes from the upper surface of the arc-shaped plate 111.

[0058] The upper surface of the inserting piece 112 is provided with a female slot 113. A male buckle 114 is fixed at the upper surface of the other jointing side, without the inserting piece 112, of the arc-shaped plate 111 corresponding to the position of the female slot 113. The male buckle 114 of the arc-shaped plate 111 is inserted into the female slot 113 of another arc-shaped plate 111 in sequence to form the connection in the flow limiting plate 11, which not only saves the use of screws but also makes the overall appearance more beautiful without the use of screws.

[0059] The size of the flow limiting plate 11 can be selected according to actual usage requirements. After the installed flow limiting plate 11 is inserted into the installation groove, the fixed connection of the arc-shaped plate 111 is completed by providing a fixing plate 13 corresponding to the position and number of the arc-shaped plate 111. The arc surface of the arc-shaped plate 111 allows the hot air flow to expand and adjust the radiation area to a corresponding degree according to the curvature and area size of the arc surface.

[0060] The door panel mechanism 3 includes a rotating door 301, a plug rod 303, a first limiting block 305, and a second limiting block 306. The rotating door 301 is rotatably connected to one side of an outer wall of the outer cover plate 2 to form a rotating connection point. A side of the rotating door 301 away from the rotating connection point is provided with a ring groove 302. The top of the rotating door 301 is provided with an operation opening suitable for adjusting the combustion device 4. Each of the first limiting block 305 and the second limiting block 306 includes a long section and a short section fixed along the length direction of the long section. The first limiting block 305 is fixed on an inner wall of the rotating door 301 directly below the ring groove 302, and the second limiting block 306 is fixed on a side wall of the outer cover plate 2 directly below the first limiting block.

[0061] The two short sections of the first limiting block 305 and the second limiting block 306 are aligned in a straight line when the rotating door 301 is closed. The surfaces of the two short sections on the straight line are each provided with a plug hole, and the plug rod 303 is inserted into the plug hole. The bottom of the plug rod 303 is conical, which facilitates the insertion of the plug rod 303.

[0062] A handle 304 is fixedly connected to one side of the plug rod 303 that passes through the ring groove 302. By moving the handle 304 up and down, the handle 304 will drive the plug rod 303 to move up and down, so that the plug rod 303 is pulled out or inserted into the plug hole, completing the opening or closing of the rotating door 301. In addition, a group of rollers 14 are installed on one side of the base 1 to facilitate moving the fuel gas heating furnace to a preset position.

[0063] The foregoing description of the preferred embodiments of the disclosure has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure to the precise form or to exemplary embodiments disclosed. Accordingly, the foregoing description should be regarded as illustrative rather than restrictive. Obviously, many modifications and variations will be apparent to practitioners skilled in this art. The embodiments are chosen and described in order to best explain the principles of the disclosure and its best mode practical application, thereby enabling persons skilled in the art in the art to understand the disclosure for various embodiments and with various modifications as are suited to the particular use or implementation contemplated. It is intended that the scope of the disclosure be defined by the claims appended hereto and their equivalents in which all terms are meant in their broadest reasonable sense unless otherwise indicated. Therefore, the term “the disclosure”, “the present disclosure” or the like does not necessarily limit the claim scope to a specific embodiment, and the reference to particularly preferred exemplary embodiments of the disclosure does not imply a limitation on the disclosure, and no such limitation is to be inferred. The disclosure is limited only by the spirit and scope of the appended claims. Moreover, these claims may refer to use “first”, “second”, etc. following with noun or element. Such terms should be understood as a nomenclature and should not be construed as giving the limitation on the number of the elements modified by such nomenclature unless specific number has been given. The abstract of the disclosure is provided to comply with the rules requiring an abstract, which will allow a searcher to quickly ascertain the subject matter of the technical disclosure of any patent issued from this disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. Any advantages and benefits described may not apply to all embodiments of the disclosure. It should be appreciated that variations may be made in the embodiments described by persons skilled in the art without departing from the scope of the disclosure as defined by the following claims. Moreover, no element and component in the present disclosure is intended to be dedicated to the public regardless of whether the element or component is explicitly recited in the following claims.

[0064] Having described at least one of the embodiments of the claimed invention with reference to the accompanying drawings, it will be apparent to those skills that the invention is not limited to those precise embodiments, and that various modifications and variations can be made in the presently disclosed system without departing from the scope or spirit of the invention.

Examples

Embodiment Construction

[0036]In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof, and in which are shown by way of illustration specific embodiments in which the disclosure may be practiced. In this regard, directional terminology, such as “top,”“bottom,”“front,”“back,” etc., is used with reference to the orientation of the Figure(s) being described. The components of the disclosure can be positioned in a number of different orientations. As such, directional terminology is used for purposes of illustration and is in no way limiting. On the other hand, the drawings are only schematic, and the sizes of components may be exaggerated for clarity. It is to be understood that other embodiments may be utilized, and structural changes may be made without departing from the scope of the disclosure. Also, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not be...

Claims

1. A fuel gas heating furnace, comprising:a gas chamber assembly including a base, a supporting plate assembly, an outer cover plate, a door panel mechanism, and a combustion device, wherein the supporting plate assembly and the base are arranged vertically along the upright direction of the fuel gas heating furnace, the base, the supporting plate assembly, the outer cover plate, and the door panel mechanism define a gas containing chamber, and the combustion device has a flame outlet;a heat transfer assembly positioned above the gas chamber assembly along the upright direction and including a plurality of grid members, a plurality of first supporting pillars, and a cover tube, wherein the lower end of the cover tube faces the flame outlet, the lower ends of the first supporting pillars are connected to the supporting plate assembly, and the grid members are arranged around the cover tube and respectively interspersed between the first supporting pillars; anda radiation assembly arranged above the heat transfer assembly along the upright direction and including a flow guiding mechanism, a heat dissipation cover, a top cover mechanism, and a flow limiting plate, wherein the flow guiding mechanism has a bottom plate and a peripheral wall connected around the bottom plate, the peripheral wall is provided with a plurality of outflow holes, the upper ends of the first support pillars are connected to the bottom plate, the heat dissipation cover faces the upper end of the cover tube, is located inside the flow guiding mechanism, and surrounded by the peripheral wall, the top cover mechanism covers the upper side of the peripheral wall along the upright direction, the flow limiting plate is arranged above the peripheral wall along the upright direction and surrounds the top cover mechanism, and the flow limiting plate extends outward along a first direction perpendicular to the upright direction.

2. The fuel gas heating furnace according to claim 1, wherein a surface of the flow limiting plate and a surface of the flow guiding mechanism are each coated with a first heat-resistant powder layer, surfaces of the first supporting pillars and surfaces of the grid members are each coated with a second heat-resistant powder layer, and the temperature resistance of the first heat-resistant powder layer is higher than that of the second heat-resistant powder layer.

3. The fuel gas heating furnace according to claim 1, wherein the surface of the heat dissipation cover is provided with a plurality of mesh holes suitable for hot gas outflow.

4. The fuel gas heating furnace according to claim 1, wherein the top cover mechanism includes a cover body and a side plate, the cover body has a top plate and a side wall connected around the top plate, the side plate is connected around the lower end of the side wall and forms an installation groove with the lower end of the side wall, and the installation groove is used to install the flow limiting plate.

5. The fuel gas heating furnace according to claim 4, wherein the cover body and the bottom plate and the peripheral wall of the flow guiding mechanism together form a retention space to retain the hot gas flowing out from the heat dissipation cover.

6. The fuel gas heating furnace according to claim 4, wherein the flow limiting plate includes a plurality of arc-shaped plates spliced into a ring shape, and the arc-shaped plate is formed by extending upward in the upright direction and bending toward the first direction.

7. The fuel gas heating furnace according to claim 6, wherein the arc-shaped plate is inserted into the installation groove, an inserting piece is fixed at one jointing side of the arc-shaped plate, and the inserting piece has the same curvature as the arc-shaped plate and protrudes from the upper surface of the arc-shaped plate; and wherein the upper surface of the inserting piece is provided with a female slot, a male buckle is fixed at the upper surface of the other jointing side, without the inserting piece, of the arc-shaped plate corresponding to the position of the female slot, and the male buckle of the arc-shaped plate is inserted into the female slot of another arc-shaped plate to form the connection in the flow limiting plate.

8. The fuel gas heating furnace according to claim 1, wherein the supporting plate assembly includes an outer supporting plate and an inner supporting plate, the grid member includes at least one isolation part, the top of the isolation part along the upright direction is connected with a first buckle plate, the bottom of the isolation part is connected with a second buckle plate, the first buckle plate is connected to the surface of the bottom plate of the flow guiding mechanism, and the second buckle plate is connected to the upper surface of the inner supporting plate.

9. The fuel gas heating furnace according to claim 8, wherein the door panel mechanism includes a rotating door, a plug rod, a first limiting block, and a second limiting block, the rotating door is rotatably connected to one side of an outer wall of the outer cover plate to form a rotating connection point, a side of the rotating door away from the rotating connection point is provided with a ring groove, the top of the rotating door is provided with an operation opening suitable for adjusting the combustion device, each of the first limiting block and the second limiting block includes a long section and a short section fixed along the length direction of the long section, the first limiting block is fixed on an inner wall of the rotating door directly below the ring groove, and the second limiting block is fixed on a side wall of the outer cover plate directly below the first limiting block; andwherein the two short sections are aligned in a straight line when the rotating door is closed, the surfaces of the two short sections on the straight line are each provided with a plug hole, and the plug rod is inserted into the plug hole.

10. The fuel gas heating furnace according to claim 8, wherein the outer supporting plate is fixed to the top of the outer cover plate, a plate surface of the inner supporting plate is supportingly connected to the grid member, the cover tube and the first supporting pillars, a positioning assembly is provided between the inner supporting plate and the outer supporting plate, the positioning assembly includes a set of sliding rods fixed on a sliding surface of the inner supporting plate, a set of sliding rails extending along the upright direction is fixed on an inner wall of the outer cover plate corresponding to the set of sliding rods, a notch is provided at the upper portion of the set of the sliding rails close to the outer supporting plate, and a sliding baffle, set along the first direction, is slidably connected inside the notch.

Images