Mute fuel oil direct-blowing warm air furnace heat exchange structure

Abstract

The utility model provides a mute fuel oil direct-blowing warm air furnace heat exchange structure, which belongs to the technical field of heat energy conversion, and comprises an air heating furnace, an air inlet fan arranged on the outer surface of the air heating furnace, an air exhaust smoke pipe communicated with the air heating furnace, a heat dissipation opening formed in the outer surface of the air heating furnace, and a plurality of metal heating pipes arranged in an inner cavity of the air heating furnace, the heating mechanism comprises an oil storage tank fixedly installed on the outer surface of the air heating furnace, an oil well pump communicating with one end of the oil storage tank, an igniter arranged on the inner wall of the air heating furnace and a quick disassembling assembly used for disassembling the metal heating pipe. The metal heating pipe is directly heated through fuel oil combustion, air is rapidly heated after flowing through the surface of the heated metal pipe, efficient hot air output is formed, the advantages of being high in heating speed and heat exchange efficiency are achieved, meanwhile, the metal heating pipe can be rapidly disassembled through the rapid disassembly assembly, accumulated dust can be conveniently and regularly cleaned, and the service life of the metal heating pipe is prolonged. The poor heat dissipation caused by dust accumulation is effectively prevented, and the maintenance convenience is improved.

Description

Technical Field

[0001] This utility model belongs to the field of thermal energy conversion technology, specifically relating to a heat exchange structure for a silent fuel direct-fired heating furnace. Background Technology

[0002] In cold environments, oil-fired direct-fired air heaters are widely used in industrial, agricultural, and residential applications as highly efficient heating devices. However, traditional oil-fired air heaters, due to the direct emission of high-temperature flue gas from combustion or low heat exchange efficiency, not only waste energy but also generate significant noise and environmental pollution. To address these issues, researchers have recently focused on optimizing the heat exchange structure design of silent oil-fired air heaters, striving to improve thermal efficiency while reducing operating noise. Therefore, developing a highly efficient, energy-saving, and low-noise heat exchange structure for direct-fired oil-fired air heaters has become an important direction for the technological improvement of current heating equipment.

[0003] In existing technologies, traditional air-heated boilers mostly use radiators as heating elements. However, they heat up slowly and have low thermal efficiency, resulting in unsatisfactory indoor heating. In addition, during long-term use, soot or other combustion residues easily accumulate on the surface of the radiators. Traditional air-heated boilers usually have a fixed installation structure, which is inconvenient to disassemble and clean, making cleaning and maintenance difficult. This may lead to poor heat dissipation, affecting the service life and heating performance of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a silent fuel-fired direct-blown heating furnace heat exchange structure, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A silent fuel-fired direct-fired hot air furnace heat exchange structure, including

[0007] The air heater includes an air intake fan installed on the outer surface of the air heater, an exhaust flue connected to the air heater, a heat dissipation vent opened on the outer surface of the air heater, and several metal heating tubes installed in the inner cavity of the air heater.

[0008] The heating mechanism includes an oil storage tank fixedly installed on the outer surface of the air heater, an oil pump connected to one end of the oil storage tank, an atomizing nozzle connected to the other end of the oil pump, an igniter installed on the inner wall of the air heater, and a quick-release assembly for disassembling the metal heating tube.

[0009] The quick-release assembly includes a fixed tube fixedly installed on the inner wall of the furnace, a spring fixedly connected to the inner surface of the fixed tube, a knob fixedly connected to the other end of the spring, a limiting block fixedly installed on the outer surface of the knob, and a mounting groove opened on the outer surface of the fixed tube and used in conjunction with the limiting block.

[0010] As a preferred embodiment of this utility model, the mounting groove includes a release end and a locking end formed on the outer surface of the fixed tube, and the release end and the locking end are connected.

[0011] As a preferred embodiment of this utility model, the outer surface of the air heater is provided with a sliding door, and a sealing strip is provided at the joint between the sliding door and the air heater.

[0012] As a preferred embodiment of this utility model, the air intake fan is connected to the inner cavity of the air heater through a pipe, and a filter screen is provided at the connection between the air intake fan and the air heater.

[0013] As a preferred embodiment of this utility model, an exhaust fan is provided inside the exhaust pipe, and a sound-absorbing coating is provided on the inner wall of the exhaust pipe.

[0014] As a preferred embodiment of this utility model, the outer end face of the metal heating tube is provided with a slot, which engages with the inner wall of the air-heated furnace.

[0015] In a preferred embodiment of this utility model, the inner surface of the fixing tube slides in contact with the outer surface of the knob, a fixing groove is provided on the surface of the knob, the fixing groove is fitted with the surface of the metal heating tube, and the outer surface of the limiting block is fitted with the inner surface of the mounting groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the metal heating tube is directly heated by fuel combustion, and the air flows over the heated metal tube surface and heats up rapidly, forming a high-efficiency hot air output. It has the advantages of fast heating speed and high heat exchange efficiency. At the same time, the metal heating tube can be quickly disassembled through quick-release components, which is convenient for regular cleaning of dust accumulation, effectively preventing poor heat dissipation caused by dust accumulation and improving maintenance convenience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0020] Figure 3 This is a schematic diagram of the internal structure of the air-heated furnace of this utility model;

[0021] Figure 4 This is a schematic diagram of the quick-release component of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the fixed tube of this utility model.

[0023] In the diagram: 100, fan heater; 101, intake fan; 102, exhaust pipe; 103, heat dissipation vent; 104, metal heating element; 200, heating mechanism; 201, oil tank; 202, oil pump; 203, atomizing nozzle; 204, igniter; 205, quick-release assembly; 205a, fixing tube; 205b, spring; 205c, knob; 205d, limit block; 205e, mounting slot; 205e-1, release end; 205e-2, locking end. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Example

[0028] Reference Figures 1-5 This is an embodiment of the present invention, which provides a heat exchange structure for a silent fuel-fired direct-blown hot air furnace, comprising:

[0029] The air heater 100 includes an air intake fan 101 disposed on the outer surface of the air heater 100, an exhaust flue 102 connected to the air heater 100, a heat dissipation port 103 opened on the outer surface of the air heater 100, and a number of metal heating tubes 104 disposed in the inner cavity of the air heater 100.

[0030] The heating mechanism 200 includes an oil storage tank 201 fixedly installed on the outer surface of the air heater 100, an oil pump 202 connected to one end of the oil storage tank 201, an atomizing nozzle 203 connected to the other end of the oil pump 202, an igniter 204 disposed on the inner wall of the air heater 100, and a quick-release assembly 205 for disassembling the metal heating tube 104.

[0031] The quick-release assembly 205 includes a fixed tube 205a fixedly installed on the inner wall of the furnace 100, a spring 205b fixedly connected to the inner surface of the fixed tube 205a, a knob 205c fixedly connected to the other end of the spring 205b, a limiting block 205d fixedly installed on the outer surface of the knob 205c, and a mounting groove 205e opened on the outer surface of the fixed tube 205a and used in conjunction with the limiting block 205d.

[0032] Specifically, the mounting groove 205e includes a release end 205e-1 and a locking end 205e-2 formed on the outer surface of the fixed tube 205a, and the release end 205e-1 and the locking end 205e-2 are connected.

[0033] Furthermore, the outer surface of the air heater 100 is provided with a sliding door, and a sealing strip is provided at the joint between the sliding door and the air heater 100.

[0034] When the surface of the metal heating tube 104 accumulates ash or other impurities due to long-term use and needs to be disassembled and cleaned, the operator can first open the sliding door on the outer surface of the air heater 100, and then manually rotate the knob 205c. During the rotation of the knob 205c, the limiting block 205d fixed on its outer side rotates synchronously, so that the limiting block 205d moves from the locking end 205e-2 in the mounting groove 205e to the releasing end 205e-1. During this process, the knob 205c applies an axial force to the spring 205b, causing it to compress and deform, thereby releasing the clamping state of the metal heating tube 104 and realizing the quick disassembly and replacement of the metal heating tube 104.

[0035] Furthermore, the intake fan 101 is connected to the inner cavity of the air heater 100 through a pipe, and a filter screen is provided at the connection between the intake fan 101 and the air heater 100.

[0036] The intake fan 101 is connected to the inner cavity of the air-heated furnace 100 through a pipe with a filter. This not only ensures a continuous supply of air required for combustion, but also filters dust and other impurities from the air, preventing pollutants from entering the furnace and affecting combustion efficiency and equipment lifespan.

[0037] Furthermore, an exhaust fan is installed inside the exhaust duct 102, and a sound-absorbing coating is installed on the inner wall of the exhaust duct 102.

[0038] The exhaust fan installed in the exhaust pipe 102 helps to discharge combustion exhaust gas in a timely manner and maintain pressure balance inside the furnace. At the same time, the sound-absorbing coating on its inner wall effectively reduces the noise generated during the exhaust process, improves the noise problem during equipment operation, and enhances user comfort.

[0039] Preferably, the outer end face of the metal heating tube 104 is provided with a slot, which engages with the inner wall of the air-heated furnace 100.

[0040] It should be noted that the inner surface of the fixing tube 205a slides in contact with the outer surface of the knob 205c, the surface of the knob 205c is provided with a fixing groove, the fixing groove is in contact with the surface of the metal heating tube 104, and the outer surface of the limiting block 205d is in contact with the inner surface of the mounting groove 205e.

[0041] In use, the air heater 100 is first installed in the space requiring heating, and the device is started via an external power supply. At this time, the intake fan 101 begins to operate, and outside air enters the air heater 100 through a connected pipe. A filter screen is installed at the connection point between the pipe and the air heater 100 to effectively filter dust and other impurities carried in the air. Simultaneously, fuel in the fuel tank 201 is pumped to the atomizing nozzle 203 via the fuel pump 202, and atomized into fine particles under high pressure, sprayed into the inner cavity of the air heater 100. The igniter 204 then ignites the mixture of air and fuel atomization, forming a stable flame that burns continuously, releasing a large amount of heat. The heated air passes through openings on the outer surface of the air heater 100. The heat is discharged through the heat dissipation vent 103, providing warmth to the indoor space. Simultaneously, the exhaust fan in the exhaust pipe 102 activates, promptly expelling the combustion exhaust gases outdoors to maintain pressure balance within the furnace. After a period of use, if the heat exchange efficiency of the metal heating tube 104 is affected by the accumulation of ash or other impurities from combustion products, it can be quickly disassembled and cleaned using the quick-release assembly 205. During operation, first open the sliding door on the outer surface of the furnace 100, then manually rotate the knob 205c. The knob 205c drives the limiting block 205d fixed to its outer side to rotate synchronously, moving the limiting block 205d from the locking end 205e-2 of the mounting slot 205e to the releasing end 205e-1. During this process, the knob 205c compresses the spring 205b, releasing the clamping state on the metal heating tube 104.

[0042] In summary, the metal heating tube 104 is heated directly by fuel combustion, and the air flowing over the heated metal tube surface heats up rapidly, forming a high-efficiency hot air output. It has the advantages of fast heating speed and high heat exchange efficiency. At the same time, the metal heating tube 104 can be quickly disassembled through the quick-release component 205, which facilitates regular cleaning of dust accumulation, effectively prevents poor heat dissipation caused by dust accumulation, and improves maintenance convenience.

[0043] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure performing the function described herein, and not only structural equivalence but also equivalent structure. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0044] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0045] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A silent fuel-fired direct-fired hot air furnace heat exchange structure, characterized in that: include, The air heater (100) includes an air intake fan (101) disposed on the outer surface of the air heater (100), an exhaust pipe (102) connected to the air heater (100), a heat dissipation port (103) opened on the outer surface of the air heater (100), and a number of metal heating pipes (104) disposed in the inner cavity of the air heater (100). The heating mechanism (200) includes an oil tank (201) fixedly installed on the outer surface of the air heater (100), an oil pump (202) connected to one end of the oil tank (201), an atomizing nozzle (203) connected to the other end of the oil pump (202), an igniter (204) disposed on the inner wall of the air heater (100), and a quick-release assembly (205) for disassembling the metal heating tube (104); The quick-release assembly (205) includes a fixed tube (205a) fixedly installed on the inner wall of the furnace (100), a spring (205b) fixedly connected to the inner surface of the fixed tube (205a), a knob (205c) fixedly connected to the other end of the spring (205b), a limiting block (205d) fixedly installed on the outer surface of the knob (205c), and a mounting groove (205e) formed on the outer surface of the fixed tube (205a) and used in conjunction with the limiting block (205d).

2. The heat exchange structure of a silent fuel-fired direct-fired hot air furnace according to claim 1, characterized in that: The mounting groove (205e) includes a release end (205e-1) and a locking end (205e-2) formed on the outer surface of the fixed tube (205a), and the release end (205e-1) and the locking end (205e-2) are connected.

3. The heat exchange structure of a silent fuel-fired direct-fired hot air furnace according to claim 2, characterized in that: The outer surface of the air heater (100) is provided with a sliding door, and a sealing strip is provided at the joint between the sliding door and the air heater (100).

4. The heat exchange structure of a silent fuel-fired direct-blown hot air furnace according to claim 3, characterized in that: The intake fan (101) is connected to the inner cavity of the air heater (100) through a pipe, and a filter screen is provided at the connection between the intake fan (101) and the air heater (100).

5. The heat exchange structure of a silent fuel-fired direct-fired hot air furnace according to claim 4, characterized in that: An exhaust fan is installed inside the exhaust pipe (102), and a sound-absorbing coating is installed on the inner wall of the exhaust pipe (102).

6. The heat exchange structure of a silent fuel-fired direct-fired hot air furnace according to claim 5, characterized in that: The outer end face of the metal heating tube (104) is provided with a slot, which engages with the inner wall of the air heater (100).

7. The heat exchange structure of a silent fuel-fired direct-fired hot air furnace according to claim 6, characterized in that: The inner surface of the fixing tube (205a) slides in contact with the outer surface of the knob (205c). A fixing groove is provided on the surface of the knob (205c). The fixing groove fits against the surface of the metal heating tube (104). The outer surface of the limiting block (205d) fits against the inner surface of the mounting groove (205e).

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