Heat-circulating heat-conducting oil stove

Abstract

The utility model belongs to the technical field of heat conducting oil stove, especially heat conducting oil stove of heat recycling, including two support plate, the top fixed connection of two support plate has same stove body. The utility model of high temperature gas after completing with heat conducting oil heat exchange, through the stove top intercommunication's smoke pipe into fixed box, through filter plate carries out filtration, after filtration, heat absorbing plate and heat exchange rod begin to play a role, the air -feed fan will send the cold wind of outside to fixed box, the air that enters fixed box flows around heat absorbing plate and heat exchange rod, carries out sufficient heat exchange with them, the air that passes through heating enters the stove top again through regenerative tube, these carry the air of recycling heat and enter the stove, mix with the new high temperature hot gas produced by combustion machine, heat the heat conducting oil together, in this way, the heat that originally directly discharges to the outside environment and wastes is recycled, improves the heat utilization efficiency of whole heat conducting oil stove system.

Description

Technical Field

[0001] This utility model relates to the field of thermal oil furnace technology, specifically a thermal oil furnace capable of heat recycling. Background Technology

[0002] A thermal oil boiler refers to a boiler heated by a thermal oil heater. Thermal oil heaters, also known as organic heat carriers or heat transfer oil, generally use coal, oil, or gas as fuel and thermal oil heaters as the medium. They use hot oil circulating pumps to force the medium to circulate in the liquid phase, transferring heat energy to the heat-using equipment and then returning to the heating furnace for reheating. They can achieve high operating temperatures at low pressures and can perform high-precision control of the medium's operation.

[0003] However, traditional thermal oil heaters commonly used in the market currently suffer from significant heat utilization efficiency issues during actual operation. Specifically, after high-temperature hot gas enters the furnace and heats the thermal oil, although most of the heat is absorbed by the thermal oil, the remaining gas still contains a considerable amount of thermal energy. This residual high-temperature gas, after heat exchange with the thermal oil, is usually directly discharged to the external environment through pre-designed vents on the furnace body. While this direct discharge of high-temperature residual gas simplifies the furnace structure and operation to some extent, it has many drawbacks from the perspective of energy utilization and cost control. On the one hand, a large amount of unutilized heat is discharged with the gas, resulting in serious energy waste. In the context of increasingly scarce global energy resources and increasingly stringent environmental protection requirements, this inefficient energy utilization not only runs counter to the concept of sustainable development but also restricts the energy conservation, emission reduction, and green development processes of enterprises themselves. On the other hand, since heat cannot be fully recovered and reused, enterprises have to consume more fuel or electricity to maintain the normal operation of the thermal oil furnace in order to meet the heat supply required for production. This undoubtedly increases the processing cost directly. Therefore, we propose a thermal oil furnace with heat recycling to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a heat-recycling thermal oil furnace, solving the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] A heat-recycling thermal oil furnace includes two support plates. A furnace body is fixedly connected to the top of the two support plates. A burner is located on the left side of the furnace body. An oil inlet pipe is connected to and fixed to the top of the furnace body, and an oil outlet pipe is connected to and fixed to the bottom of the furnace body. A fixed box is fixedly connected to the rear side of the two support plates. A flue gas pipe is connected to and fixed to the top of the furnace body, and its end is connected to and fixed to the fixed box. A heat recovery pipe is connected to and fixed to the top of the fixed box, and its end is connected to and fixed to the bottom of the furnace body. A U-shaped groove with one side open is opened on the fixed box. A filter plate is fitted onto the U-shaped groove. A sealing plate is fixedly connected to one side of the filter plate, and the sealing plate is in movable contact with the rear side of the fixed box. A blower is fixedly connected to the bottom of the fixed box, and the blower's outlet pipe extends into the fixed box. Two heat-absorbing plates are fixedly connected to the top of the fixed box, and multiple heat exchange rods are provided between the two heat-absorbing plates. An exhaust pipe is connected to and fixed to the right side of the fixed box.

[0009] Furthermore, two slots are provided on one side of the sealing plate, and two U-shaped plates are welded to the rear side of the fixing box.

[0010] Furthermore, guide rods are welded between the inner walls of the two sides of the U-shaped plate, and the same connecting plate is slidably connected to the two guide rods.

[0011] Furthermore, a spring is fixedly connected between one side of the connecting plate and the inner wall of one side of the U-shaped plate, and the spring is movably sleeved on the corresponding guide rod.

[0012] Furthermore, two locking pins are welded to the other side of the connecting plate, and the locking pins are engaged with the locking slots.

[0013] Furthermore, the connecting plate has two guide holes, and the connecting plate is slidably connected to the corresponding guide rod through the guide holes.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a heat transfer oil furnace with heat recycling capability, which has the following beneficial effects:

[0016] This invention utilizes the residual high-temperature gas after heat exchange with the thermal oil. The gas enters a fixed chamber through a flue pipe connected to the top of the furnace body, where it is filtered by a filter plate. After filtration, the heat-absorbing plates and heat exchange rods begin to function. A blower delivers cool air from the outside into the fixed chamber. The air entering the fixed chamber flows around the heat-absorbing plates and heat exchange rods, undergoing thorough heat exchange. The heated air then re-enters the top of the furnace body through a heat recovery pipe. This air, carrying recovered heat, mixes with the fresh high-temperature hot air generated by the burner to jointly heat the thermal oil. In this way, heat that would otherwise be wasted by direct discharge into the environment is recovered and reused, improving the overall heat utilization efficiency of the thermal oil furnace system. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the cut-open fixed box of this utility model;

[0019] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0020] Figure 4 This is a three-dimensional structural diagram of the connection between the filter plate and the sealing plate of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the U-shaped plate, spring, connecting plate, and locking pin connection of this utility model.

[0022] In the diagram: 1. Support plate; 2. Furnace body; 3. Burner; 4. Oil inlet pipe; 5. Oil outlet pipe; 6. Fixing box; 7. Smoke outlet pipe; 8. Heat recovery pipe; 9. U-shaped groove; 10. Filter plate; 11. Sealing plate; 12. Blower; 13. Heat absorption plate; 14. Heat exchange rod; 15. Smoke exhaust pipe; 16. Slot; 17. U-shaped plate; 18. Guide rod; 19. Connecting plate; 20. Spring; 21. Locking pin. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] like Figure 1-5As shown in the figure, an embodiment of the present invention discloses a heat-recycling thermal oil furnace, comprising two support plates 1, with a furnace body 2 fixedly connected to the top of the two support plates 1. A burner 3 is provided on the left side of the furnace body 2. An oil inlet pipe 4 is connected to and fixed to the top of the furnace body 2, and an oil outlet pipe 5 is connected to and fixed to the bottom of the furnace body 2. A fixing box 6 is fixedly connected to the rear side of the two support plates 1. A flue gas pipe 7 is connected to and fixed to the top of the furnace body 2. The end of the flue gas pipe 7 is connected to and fixed to the fixing box 6. A heat recovery pipe 8 is connected to and fixed to the top of the fixing box 6. The end of the pipe 8 is connected to and fixed to the bottom of the furnace body 2. A U-shaped groove 9 with one side open is provided on the fixed box 6. A filter plate 10 is installed on the U-shaped groove 9. A sealing plate 11 is fixedly connected to one side of the filter plate 10. The sealing plate 11 is in movable contact with the rear side of the fixed box 6. A blower 12 is fixedly connected to the bottom of the fixed box 6. The air outlet pipe of the blower 12 extends into the fixed box 6. Two heat absorption plates 13 are fixedly connected to the top of the fixed box 6. Multiple heat exchange rods 14 are provided between the two heat absorption plates 13. A flue pipe 15 is connected to and fixed to the right side of the fixed box 6.

[0026] During operation, the remaining high-temperature gas after heat exchange with the thermal oil enters the fixed box 6 through the flue pipe 7 connected to the bottom of the furnace body 2. It is filtered by the filter plate 10. After filtration, the heat absorption plate 13 and the heat exchange rod 14 begin to function. The blower 12 delivers cold air from the outside to the fixed box 6. The air entering the fixed box 6 flows around the heat absorption plate 13 and the heat exchange rod 14, and exchanges heat with them thoroughly. The heated air re-enters the top of the furnace body 2 through the heat recovery pipe 8. After entering the furnace body 2, this air carrying recovered heat mixes with the new high-temperature hot air generated by the burner 3 to heat the thermal oil together. In this way, the heat that was originally wasted by being directly discharged into the outside environment is recovered and reused, improving the heat utilization efficiency of the entire thermal oil furnace system.

[0027] In operation, the burner 3 located on the left side of the furnace body 2 starts working, burning fuel to generate high-temperature hot gas. This high-temperature hot gas enters the interior of the furnace body 2 and fully exchanges heat with the heat transfer oil inside the furnace. The heat transfer oil enters the furnace body 2 through the oil inlet pipe 4 connected to the top of the furnace body 2. After absorbing the heat released by the high-temperature hot gas inside the furnace, its temperature rises, and it flows out from the oil outlet pipe 5 connected to the bottom of the furnace body 2 to be used in subsequent production processes, meeting the heat supply required for production. The remaining high-temperature gas after heat exchange with the heat transfer oil enters the fixed box 6 through the smoke outlet pipe 7 connected to the top of the furnace body 2, and is filtered by the filter plate 10. After filtration, the heat absorption plate 13 and the heat exchange rod 14 begin to function. The heat absorption plate 13 has a large heating area and can quickly... The heat is absorbed from the high-temperature flue gas and transferred to the heat exchange rod 14. At the same time, the blower 12 is started, which delivers cold air from the outside to the fixed box 6. The air entering the fixed box 6 flows around the heat absorption plate 13 and the heat exchange rod 14, and exchanges heat with them fully, absorbing the heat on the heat absorption plate 13 and the heat exchange rod 14, thereby raising the air temperature. The heated air re-enters the top of the furnace body 2 through the heat recovery pipe 8. After entering the furnace body 2, this air carrying recovered heat mixes with the new high-temperature hot air generated by the burner 3, and together they heat the thermal oil. In this way, the heat that was originally wasted by being directly discharged into the outside environment is recovered and reused, improving the heat utilization efficiency of the entire thermal oil furnace system.

[0028] In some embodiments, two slots 16 are provided on one side of the sealing plate 11, two U-shaped plates 17 are welded to the rear side of the fixing box 6, guide rods 18 are welded between the inner walls of the two sides of the U-shaped plate 17, the same connecting plate 19 is slidably connected to the two guide rods 18, a spring 20 is fixedly connected between one side of the connecting plate 19 and one side of the inner wall of the U-shaped plate 17, the spring 20 is movably sleeved on the corresponding guide rod 18, and two locking pins 21 are welded to the other side of the connecting plate 19, the locking pins 21 are engaged with the slots 16.

[0029] When the filter plate 10 needs to be disassembled, the connecting plate 19 is moved and slides on the guide rod 18. During the movement, the connecting plate 19 compresses the spring 20. At the same time, the connecting plate 19 drives the locking pin 21 to move, and the locking pin 21 separates from the locking groove 16. Then, the sealing plate 11 is moved, so that the filter plate 10 can be removed for cleaning.

[0030] In some embodiments, the connecting plate 19 has two guide holes, and the connecting plate 19 is slidably connected to the corresponding guide rod 18 through the guide holes.

[0031] By setting the guide rod 18, the connecting plate 19 is limited so that the connecting plate 19 will not be displaced when it moves.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heat-recycling thermal oil furnace, comprising two support plates (1), characterized in that: The tops of the two support plates (1) are fixedly connected to the same furnace body (2). A burner (3) is provided on the left side of the furnace body (2). An oil inlet pipe (4) is connected to and fixed to the top of the furnace body (2). An oil outlet pipe (5) is connected to and fixed to the bottom of the furnace body (2). A fixed box (6) is fixedly connected to the rear side of the two support plates (1). A flue gas pipe (7) is connected to and fixed to the top of the furnace body (2). The end of the flue gas pipe (7) is connected to and fixed to the fixed box (6). A heat recovery pipe (8) is connected to and fixed to the top of the fixed box (6). The end of the heat recovery pipe (8) is connected to and fixed to the bottom of the furnace body (2). The fixed box (6) has a U-shaped groove (9) with one side open. A filter plate (10) is installed on the U-shaped groove (9). A sealing plate (11) is fixedly connected to one side of the filter plate (10). The sealing plate (11) is in contact with the rear side of the fixed box (6). A blower (12) is fixedly connected to the bottom of the fixed box (6). The air outlet pipe of the blower (12) extends into the fixed box (6). Two heat absorption plates (13) are fixedly connected to the top of the fixed box (6). Multiple heat exchange rods (14) are provided between the two heat absorption plates (13). A flue pipe (15) is connected to and fixed to the right side of the fixed box (6).

2. The heat-recycling thermal oil furnace according to claim 1, characterized in that: Two slots (16) are provided on one side of the sealing plate (11), and two U-shaped plates (17) are welded to the rear side of the fixing box (6).

3. The heat-recycling thermal oil furnace according to claim 2, characterized in that: Guide rods (18) are welded between the inner walls of the two sides of the U-shaped plate (17), and the same connecting plate (19) is slidably connected to the two guide rods (18).

4. The heat-recycling thermal oil furnace according to claim 3, characterized in that: A spring (20) is fixedly connected between one side of the connecting plate (19) and the inner wall of one side of the U-shaped plate (17), and the spring (20) is movably sleeved on the corresponding guide rod (18).

5. A heat-recycling thermal oil furnace according to claim 4, characterized in that: Two locking pins (21) are welded to the other side of the connecting plate (19), and the locking pins (21) are engaged with the slots (16).

6. A heat-recycling thermal oil furnace according to claim 5, characterized in that: The connecting plate (19) has two guide holes, and the connecting plate (19) is slidably connected to the corresponding guide rod (18) through the guide holes.

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