Gas heat-conducting oil furnace

Abstract

The utility model discloses a fuel gas heat-conducting oil furnace which comprises a heat-conducting oil furnace body, a heating furnace body, a sealing cover and a heating coil, the heating furnace body is arranged in an inner cavity of the heat-conducting oil furnace, the heating coil is arranged in the heating furnace body, and an air outlet cavity is reserved between the heat-conducting oil furnace body and the heating furnace body. An exhaust pipe is fixedly connected between the right end face of the heating furnace body and the heat conduction oil furnace body, air outlet holes communicated with the air outlet cavity are symmetrically formed in the surface of the exhaust pipe, and an air inlet pipe communicated with an inner cavity of the heating furnace body is fixedly arranged on the outer side face of the sealing cover. And air outlet pipes are symmetrically and fixedly arranged at the positions, away from the air inlet pipe and the burner mounting pipe, of the outer side face of the sealing cover, the air outlet pipes communicate with an air outlet cavity between the heat conduction oil furnace body and the heating furnace body, a semicircular notch is formed in the surface of each air inlet pipe, and a filtering mechanism is arranged in each notch. According to the air purifier, impurities in air can be effectively filtered, and the filter screen can be conveniently disassembled, assembled and replaced.

Description

Technical Field

[0001] This utility model relates to the field of thermal oil furnace technology, and in particular to a gas-fired thermal oil furnace. Background Technology

[0002] In existing technologies, gas-fired thermal oil heaters use thermal oil as the heating medium and coils as the heat transfer carrier to heat the thermal oil to a certain temperature for subsequent equipment heating. Gas-fired thermal oil heaters are usually designed in a linear fashion. If the air inlet and outlet are designed in a linear shape, air convection will easily form, and the exhaust gas will carry away most of the heat, resulting in ineffective utilization of waste heat and waste of resources.

[0003] A search revealed that utility model patent document CN207196944U discloses a small gas-fired thermal oil furnace, including a thermal oil furnace body and a combustion chamber. A burner is provided at one end of the thermal oil furnace body, and an air inlet is provided on the same side of the thermal oil furnace body and the burner. A thermal oil coil is provided in the combustion chamber, and an air guide groove is provided at the opposite end of the thermal oil furnace body and the burner. The exhaust gas after combustion flows through the first air outlet into the air guide groove, and then flows from the second air outlet of the air guide groove to the third air outlet and from the fourth air outlet of the air guide groove to the fifth air outlet for discharge.

[0004] Since impurities such as dust, insects, and plant debris in the air may enter the burner through the air inlet, it can lead to incomplete combustion or carbon buildup. In the above-mentioned thermal oil heater, the lack of an air filtration mechanism at the air inlet will affect the use of the combustion chamber. Utility Model Content

[0005] The purpose of this invention is to provide a gas-fired thermal oil heater that can effectively filter impurities in the air and facilitate the disassembly and replacement of the filter screen in the filtration mechanism.

[0006] The present invention adopts the following technical solution:

[0007] A gas-fired thermal oil heater includes a thermal oil heater body, a heating furnace body, a cover, and a heating coil. The heating furnace body is disposed within the inner cavity of the thermal oil heater, and the heating coil is disposed inside the heating furnace body. The inner wall of the thermal oil heater body is provided with a heat insulation layer. An air outlet cavity is provided between the thermal oil heater body and the heating furnace body. An exhaust pipe is fixedly connected between the right end face of the heating furnace body and the heat insulation layer of the thermal oil heater body. The surface of the exhaust pipe has symmetrically opened air outlet holes communicating with the air outlet cavity. An air inlet pipe communicating with the inner cavity of the heating furnace body is fixedly disposed on the outer side of the cover. An air outlet pipe is symmetrically fixedly disposed on the outer side of the cover away from the air inlet pipe and the burner mounting pipe. The air outlet pipe communicates with the air outlet cavity between the thermal oil heater body and the heating furnace body. A semi-circular notch is opened on the surface of the air inlet pipe, and a filter mechanism is disposed within the notch.

[0008] Optionally, the heating coil includes a three-layer spiral coil. The right end of the inner coil is connected to the right end of the middle coil, and the left end of the middle coil is connected to the left end of the outer coil. The left end of the inner coil is fixedly connected to an oil inlet pipe, and the right end of the outer coil is fixedly connected to an oil outlet pipe. Both the oil inlet pipe and the oil outlet pipe pass through the heating furnace body and the thermal oil furnace body.

[0009] Optionally, several connecting rods are welded to the outer surface of the heating coil, and the connecting rods are fixed to the inner wall of the heating furnace body.

[0010] Optionally, the filtration mechanism includes a sealing cap and fixing parts symmetrically fixed on both sides of the notch in the air inlet pipe, with the sealing cap matching the shape and size of the notch.

[0011] Optionally, the inner wall of the sealing pipe cover and the inner wall of the air inlet pipe are symmetrically fixed with oppositely positioned arc-shaped grooves, and a circular filter screen is fixedly installed in the arc-shaped grooves. Connecting plates are symmetrically fixed on both sides of the surface of the sealing pipe cover, and a locking block for connecting with the fixing part is fixedly installed on the lower surface of the connecting plate.

[0012] Optionally, the fixing part includes a connecting frame, a U-shaped top rod, and symmetrically arranged clamping blocks. The connecting frame is open at both ends, and a cover plate is symmetrically fixed at the upper end of the connecting frame. A support plate is fixedly installed inside the connecting frame.

[0013] Optionally, the clamping block is slidably disposed between the support plate and the cover plate, and slides against the inner wall of the connecting frame. A spring is fixedly connected between the outer side of the clamping block and the corresponding inner wall of the connecting frame.

[0014] Optionally, a cover plate two is fixedly installed at the lower end of the connecting frame, and the two vertical rods of the U-shaped top rod pass through the cover plate two and the support plate and slide together, and the upper end of the vertical rod of the U-shaped top rod is located in the sliding groove.

[0015] Optionally, a square through groove is provided in the middle of the support plate, and a top block is slidably arranged in the through groove. A spring is fixedly connected between the top block and the cover plate.

[0016] Optionally, an arc-shaped sealing ring 1 is installed on each of the two opposite outer surfaces of the notch, and a sealing ring 2 is installed on the upper surface of the connecting frame.

[0017] In summary, this utility model has the following beneficial effects:

[0018] 1. In this utility model, the filter mechanism can effectively filter impurities in the air. When the filter needs to be replaced, simply push the U-shaped top rods on both sides upwards to move the U-shaped top rods against the clamping blocks on both sides outwards, so that the clamping blocks release the locking of the locking blocks. At this time, the spring will return to its original position and push the top blocks to push the locking blocks away from the two clamping blocks. At this time, the sealing tube cover can be easily removed to replace the filter.

[0019] 2. In this utility model, the design of a three-layer heating coil can increase the contact area between the heating coil and the air, thereby improving the heating effect on the air. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a schematic diagram of the heating coil structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the filter mechanism structure of this utility model. Figure 1 ;

[0024] Figure 5 This is a schematic diagram of the filter mechanism structure of this utility model. Figure 2 ;

[0025] Figure 6 In this utility model Figure 5 A magnified view of the details at point A;

[0026] Figure 7 This is a cross-sectional view of the filtration mechanism of this utility model;

[0027] Figure 8 In this utility model Figure 7 A magnified view of the details at point B;

[0028] Figure 9 This is a cross-sectional view of the cap of this utility model;

[0029] Figure 10 The present utility model Figure 9 A magnified view of the details at point C.

[0030] In the diagram, 1. Thermal oil furnace body; 11. Insulation layer; 12. Heating furnace body; 13. Exhaust pipe; 131. Air outlet; 2. Cover; 21. Air inlet pipe; 211. Notch; 212. Sealing ring one; 213. Sealing ring two; 22. Air outlet pipe; 23. Burner mounting pipe; 3. Filter mechanism; 31. Sealing pipe cover; 32. Connecting plate; 321. Locking block; 4. Heating coil; 41. Oil inlet pipe; 42. Oil outlet pipe; 5. Connecting rod; 6. Arc-shaped groove; 7. Filter screen; 8. Fixing part; 81. Connecting frame; 811. Cover plate one; 812. Cover plate two; 813. Support plate; 814. Through groove; 82. U-shaped top rod; 821. Bolt; 822. Spring one; 83. Tightening block; 831. Sliding groove; 832. Spring two; 84. Top block; 841. Spring three. Detailed Implementation

[0031] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0032] Please see Figure 1-10 The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0033] like Figure 1-2 As shown, a gas-fired thermal oil heater includes a thermal oil heater body 1, a heating furnace body 12, a cover 2, and a heating coil 4. The heating furnace body 12 is disposed in the inner cavity of the thermal oil heater, and the heating coil 4 is disposed inside the heating furnace body 12. The cover 2 is disposed on the left end face of the thermal oil heater body 1 to seal the thermal oil heater body 1 and the heating furnace body 12. The inner wall of the thermal oil heater body 1 is provided with a heat insulation layer 11, and the inner wall of the cover 2 also has a heat insulation effect, which can reduce the heat loss in the heating furnace body 12. An air outlet cavity is left between the thermal oil heater body 1 and the heating furnace body 12. An exhaust pipe 13 is fixedly connected between the right end face of the heating furnace body 12 and the heat insulation layer 11 of the thermal oil heater body 1. The surface of the exhaust pipe 13 is symmetrically provided with air outlet holes 131 communicating with the air outlet cavity.

[0034] A burner mounting pipe 23 communicating with the interior of the heating furnace body 12 is fixedly installed at the center of the outer side of the cover 2. The burner is installed in the burner mounting pipe 23 to heat the heating coil 4.

[0035] An air inlet pipe 21 communicating with the inner cavity of the heating furnace body 12 is fixedly installed on the outer side of the cover 2 at a position away from the burner mounting pipe 23. The other end of the air inlet pipe 21 is connected to the external air inlet mechanism.

[0036] An air outlet pipe 22 is symmetrically fixed on the outer side of the cover 2 at a position away from the air inlet pipe 21 and the burner mounting pipe 23. The air outlet pipe 22 is connected to the air outlet cavity between the thermal oil furnace body 1 and the heating furnace body 12. The other end of the air outlet pipe 22 is connected to the external air outlet mechanism.

[0037] A semi-circular notch 211 is provided on the surface of the air inlet pipe 21. A filter mechanism 3 is provided inside the notch 211. The filter mechanism 3 filters the blown air to prevent dust, insects, plant debris and other impurities in the air from entering the heating furnace body 12 through the air inlet pipe 21, which may lead to incomplete combustion or carbon buildup.

[0038] The burner, air inlet mechanism and air outlet mechanism mentioned above are all existing technologies and will not be drawn or described in detail here.

[0039] like Figure 1-3 As shown, in this embodiment, the heating coil 4 includes a three-layer spiral coil. The right end of the inner coil is connected to the right end of the middle coil, and the left end of the middle coil is connected to the left end of the outer coil. The left end of the inner coil is fixedly connected to an oil inlet pipe 41, and the right end of the outer coil is fixedly connected to an oil outlet pipe 42. Both the oil inlet pipe 41 and the oil outlet pipe 42 pass through the heating furnace body 12 and the thermal oil furnace body 1, and are connected to the external oil inlet mechanism and oil outlet mechanism. The above-mentioned oil inlet mechanism and oil outlet mechanism are existing technologies and will not be drawn or described in detail here.

[0040] like Figure 3 As shown, in this embodiment, a number of connecting rods 5 are welded to the outer ring surface of the heating coil 4, and the connecting rods 5 are fixed to the inner wall of the heating furnace body 12 by bolts, so that the heating coil 4 can be stably installed in the heating furnace body 12.

[0041] Specifically, the design of the three-layer heating coil 4 can increase the contact area with air, thereby improving the heating effect on the air.

[0042] Furthermore, the heat transfer oil is introduced into the oil inlet pipe 41 through the oil inlet mechanism and then into the heating coil 4. The heating coil 4 is then heated by the burner to heat the heat transfer oil. At the same time, the air inlet mechanism vents air into the air inlet pipe, allowing air to enter the heating furnace body 12. The air passes through the heating coil 4 and is heated. The heated air is then introduced into the exhaust pipe 13, and then enters the air outlet cavity through the air outlet hole 131. Finally, it enters the air outlet mechanism through the air outlet pipe 22, delivering the hot air to the location of use.

[0043] like Figure 4As shown, in this embodiment, the filter mechanism 3 includes a sealing tube cover 31 and a fixing part 8 symmetrically fixed on both sides of the notch 211 of the air inlet pipe 21. The shape and size of the sealing tube cover 31 are adapted to the notch 211, and the fixing part 8 is used to facilitate the disassembly and installation of the sealing tube cover 31 and the air inlet pipe 21.

[0044] like Figure 4-7 As shown, symmetrically fixed arc-shaped slots 6 are provided on the inner wall of the sealing pipe cover 31 and the inner wall of the air inlet pipe 21. A circular filter screen 7 is engaged in the arc-shaped slot 6 and can be removed from the arc-shaped slot 6.

[0045] A connecting plate 32 is symmetrically fixed on both sides of the surface of the sealing tube cover 31, and a locking block 321 for connecting with the fixing part 8 is fixed on the lower surface of the connecting plate 32.

[0046] like Figure 6-10 As shown, in this embodiment, the fixing part 8 includes a connecting frame 81, a U-shaped top rod 82 and symmetrically arranged clamping blocks 83. The connecting frame 81 is open at the top and bottom. A cover plate 811 is symmetrically fixed at the upper end of the connecting frame 81. The distance between the two cover plates 811 is sufficient for the card block 321 to pass through.

[0047] A support plate 813 is fixedly installed in the inner cavity of the connecting frame 81. The top block 83 is slidably installed between the support plate 813 and the cover plate 811 and slides with the inner wall of the connecting frame 81. A second spring 832 is fixedly connected between the outer side of the top block 83 and the corresponding inner wall of the connecting frame 81. The second spring 832 is used to assist the top block 83 in resetting. The two top blocks 83 can lock the locking block 321 through the second spring 83. A trapezoidal sliding groove 831 is provided on the lower surface of the top block 83.

[0048] A cover plate 812 is fixedly installed at the lower end of the connecting frame 81. The two vertical rods of the U-shaped top rod 82 pass through the cover plate 812 and the support plate 813 and slide together. The upper end of the vertical rod of the U-shaped top rod 82 is located in the sliding groove 831. When the U-shaped top rod 82 is pushed, it can push the clamping block 83, so that the clamping blocks 83 on both sides move outward to release the locking state of the clamping block 321. A spring 822 is fixedly connected between the support plate 813 and the cover plate 812, which is sleeved on the outer surface of the vertical rod of the U-shaped top rod 82. The spring 822 is used to help the U-shaped top rod 82 reset.

[0049] like Figure 6-10 As shown, in this embodiment, a square through groove 814 is provided in the middle of the support plate 813, a top block 84 is slidably disposed in the through groove 814, and a spring 841 is fixedly connected between the top block 84 and the cover plate 812.

[0050] Specifically, before the locking block 321 contacts the two clamping blocks 83, the top block 84 is positioned between the two clamping blocks 83. At this time, springs 822, 832, and 841 are all in normal condition and have not deformed. When the locking block 321 contacts the inclined surface of the clamping block 83 and pushes the clamping block 83, spring 832 is squeezed by the clamping block 83. As the locking block 321 continues to descend, its surface contacts the upper surface of the top block 84 and presses the top block 84 downwards. At this time, spring 841... The compression continues until the top block 83 locks the locking block 321. At this point, the position of the top block 84 stops changing. When it is necessary to replace the filter screen 7 inside the sealing tube cover 31, simply push the U-shaped top rods 82 on both sides upwards, causing the U-shaped top rods 82 to move the top blocks 83 on both sides outwards, thus releasing the top blocks 83 from locking the locking block 321. At this time, the spring 841 will reset, pushing the top block 84 to push the locking block 321 away from the two top blocks 83. Then the sealing tube cover 31 can be easily removed to replace the filter screen 7.

[0051] like Figure 5 As shown, in this embodiment, arc-shaped sealing rings 212 are installed on both opposite outer surfaces of the notch 211, and sealing rings 213 are installed on the upper surface of the connecting frame 81. Sealing rings 212 and 213 are used to enhance the airtightness of the connection between the sealing tube cover 31 and the air inlet pipe 21.

[0052] like Figure 6 As shown, in this embodiment, a bolt is provided below the U-shaped top rod 82, and the bolt 821 passes through the crossbar of the U-shaped top rod and is threaded.

[0053] Specifically, the position of the U-shaped push rod 82 can be fixed by tightening the bolt 821 so that the upper end of the bolt 821 presses against the lower surface of the cover plate 812, thus preventing the U-shaped push rod 82 from accidentally moving upwards. When it is necessary to push the U-shaped push rod 82, simply unscrew the bolt 821.

[0054] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0055] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0056] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A gas-fired thermal oil heater, characterized in that: The device includes a thermal oil heater body, a heating furnace body, a cover, and a heating coil. The heating furnace body is located inside the thermal oil heater cavity, and the heating coil is located inside the heating furnace body. The inner wall of the thermal oil heater body is provided with a heat insulation layer. An air outlet cavity is provided between the thermal oil heater body and the heating furnace body. An exhaust pipe is fixedly connected between the right end face of the heating furnace body and the heat insulation layer of the thermal oil heater body. The surface of the exhaust pipe has symmetrically opened air outlet holes that communicate with the air outlet cavity. An air inlet pipe that communicates with the inner cavity of the heating furnace body is fixedly provided on the outer side of the cover. An air outlet pipe is symmetrically fixedly provided on the outer side of the cover away from the air inlet pipe and the burner mounting pipe. The air outlet pipe communicates with the air outlet cavity between the thermal oil heater body and the heating furnace body. A semi-circular notch is opened on the surface of the air inlet pipe, and a filter mechanism is provided in the notch.

2. The gas-fired thermal oil heater according to claim 1, characterized in that: The heating coil consists of three spiral coils. The right end of the inner coil is connected to the right end of the middle coil, and the left end of the middle coil is connected to the left end of the outer coil. The left end of the inner coil is fixedly connected to an oil inlet pipe, and the right end of the outer coil is fixedly connected to an oil outlet pipe. Both the oil inlet and outlet pipes pass through the heating furnace body and the thermal oil furnace body.

3. A gas-fired thermal oil heater according to claim 2, characterized in that: Several connecting rods are welded to the outer surface of the heating coil, and the connecting rods are fixed to the inner wall of the heating furnace body.

4. A gas-fired thermal oil heater according to claim 1, characterized in that: The filtration mechanism includes a sealing tube cover and fixing parts symmetrically fixed on both sides of the notch in the air inlet duct. The shape and size of the sealing tube cover are adapted to the notch.

5. A gas-fired thermal oil heater according to claim 4, characterized in that: The inner walls of the sealing pipe cover and the air inlet pipe are symmetrically fixed with oppositely positioned arc-shaped grooves. A circular filter screen is fixed in the arc-shaped groove. Connecting plates are symmetrically fixed on both sides of the surface of the sealing pipe cover. A locking block for connecting with the fixing part is fixed on the lower surface of the connecting plate.

6. A gas-fired thermal oil heater according to claim 4, characterized in that: The fixing part includes a connecting frame, a U-shaped top rod and symmetrically arranged clamping blocks. The connecting frame is open at the top and bottom. A cover plate is symmetrically fixed at the upper end of the connecting frame, and a support plate is fixedly installed in the inner cavity of the connecting frame.

7. A gas-fired thermal oil heater according to claim 6, characterized in that: The clamping block is slidably disposed between the support plate and the cover plate, and slides against the inner wall of the connecting frame. A spring is fixedly connected between the outer side of the clamping block and the corresponding inner wall of the connecting frame.

8. A gas-fired thermal oil heater according to claim 7, characterized in that: A cover plate 2 is fixedly installed at the lower end of the connecting frame. The two vertical rods of the U-shaped top rod pass through the cover plate 2 and the support plate and slide together. The upper end of the vertical rod of the U-shaped top rod is located in the sliding groove.

9. A gas-fired thermal oil heater according to claim 8, characterized in that: A square through groove is provided in the middle of the support plate, and a top block is slidably installed in the through groove. A spring is fixedly connected between the top block and the cover plate.

10. A gas-fired thermal oil heater according to claim 6, characterized in that: Both of the two opposite outer surfaces of the notch are fitted with an arc-shaped sealing ring one, and the upper end of the connecting frame is fitted with a sealing ring two.

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