Vertical organic heat transfer material furnace

Abstract

The utility model relates to the technical field of boilers, in particular to a vertical organic heat carrier furnace which comprises an upper furnace body, a lower furnace body installed at the bottom of the upper furnace body, a coil pipe body installed inside the upper furnace body, a smoke outlet formed in one side of the top of the upper furnace body, a smoke and air duct connected to the outer side of the smoke outlet, and a waste heat recovery device connected to the bottom of the outer end of the smoke and air duct. And the bottom end of the waste heat recovery device is connected with an air preheater. In the vertical organic heat carrier furnace, fuel is combusted on the fire grate, high-temperature flue gas generated by combustion radiates and releases heat in the inner coil pipe and then enters the space between the inner coil pipe and the outer coil pipe and the space between the outer coil pipe and the barrel body for convection heat release, and heat in the flue gas is fully absorbed through the air preheater and the waste heat recovery device. The waste heat recovery device can effectively utilize waste heat of flue gas at the tail of the boiler, hot water heated by the waste heat recovery device can be used for other life, meanwhile, the exhaust gas temperature of the boiler is reduced, and the boiler is more environment-friendly and energy-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a vertical organic heat carrier furnace. Background Art

[0002] The vertical organic heat carrier furnace is a common industrial equipment, mainly used to provide heat energy for industrial production. This furnace transfers heat energy to the industrial production process by heating the heat transfer oil and circulating it in a closed system. However, the traditional vertical organic heat carrier furnace has some problems in heat utilization and environmental protection. In addition, it is easy to generate dust accumulation inside for a long time, which will cause blockage and reduce heat exchange efficiency, which is not conducive to boiler operation. In order to improve thermal efficiency and reduce environmental pollution, it is necessary to improve this furnace. Utility Model Content

[0003] The purpose of the utility model is to provide a vertical organic heat carrier furnace to solve the problems of the traditional vertical organic heat carrier furnace mentioned in the above background technology in terms of heat utilization and environmental protection, and the problem that ash is easily accumulated when working for a long time inside, and the ash accumulation causes blockage, resulting in a decrease in heat exchange efficiency, which is not conducive to the operation of the boiler.

[0004] To achieve the above-mentioned purpose, the utility model provides a vertical organic heat carrier furnace, including an upper furnace body, a lower furnace body is installed at the bottom of the upper furnace body, a coil body is installed inside the upper furnace body, a smoke outlet is arranged on one side of the top of the upper furnace body, a smoke duct is connected to the outer side of the smoke outlet, a waste heat recovery device is connected to the bottom of the outer end of the smoke duct, an air preheater is connected to the bottom end of the waste heat recovery device, and an exhaust port is arranged on one side of the bottom of the air preheater.

[0005] Preferably, a foundation is installed at the bottom of the lower furnace body, the lower furnace body is fixed to the upper furnace body by bolts, and an outer wall of the upper furnace body is provided with an outer cladding layer.

[0006] Preferably, a furnace door is provided on the side wall of the lower furnace body, a grate is provided inside the lower furnace body, and an air inlet is provided on one side of the bottom of the lower furnace body.

[0007] Preferably, a ash cleaning door is provided on the lower side wall of the upper furnace body, a plurality of ash blowing holes are provided on the top of the upper furnace body, and a ash cleaning port is provided on the bottom of the upper furnace body.

[0008] Preferably, the coil body includes two circles, which are divided into an inner coil and an outer coil, and the upper and lower parts of the inner coil and the outer coil are supported and separated by a pad.

[0009] Preferably, the bottom end of the coil body is connected to a heat transfer oil inlet pipe, the top end of the coil body is connected to a heat transfer oil outlet pipe, an oil drain hole is provided at the bottom of the heat transfer oil inlet pipe, and an exhaust hole is provided at the top of the heat transfer oil outlet pipe.

[0010] Preferably, a water inlet is provided on one side of the bottom of the waste heat recovery device, a water outlet is provided on one side of the top of the waste heat recovery device, and a heating water pipe is provided inside the waste heat recovery device, one end of the heating water pipe is connected to the water inlet, and the other end of the heating water pipe is connected to the water outlet.

[0011] Preferably, a platform ladder is installed on the outer side of the top of the upper furnace body.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In this vertical organic heat carrier furnace, the fuel burns on the grate. The high-temperature flue gas generated by the combustion releases heat through radiation from the inner coil, then enters between the inner coil and the outer coil, and between the outer coil and the cylinder for convection heat release, and fully absorbs the heat in the flue gas through the air preheater and the waste heat recovery device. The waste heat recovery device can effectively utilize the waste heat of the flue gas at the tail of the boiler. The hot water heated by the waste heat recovery device can be used for other life uses, while reducing the boiler exhaust temperature, making the boiler more environmentally friendly and energy-saving. The dust between the inner and outer coils can be easily cleaned through the soot blowing hole, and the ash falls to the lower part of the upper furnace body, and is cleaned out of the furnace body through the soot cleaning port, ensuring that the flue gas in the furnace body remains unobstructed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a partial structural schematic diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0017] The meaning of each number in the figure is:

[0018] 1. Foundation; 2. Air preheater; 21. Exhaust port; 3. Lower furnace body; 31. Furnace door; 32. Air inlet; 33. Grate; 4. Bolts; 5. Upper furnace body; 51. Soot cleaning door; 52. Soot blowing hole; 53. Soot cleaning port; 6. Pad; 7. Coil body; 71. Heat transfer oil inlet pipe; 72. Heat transfer oil outlet pipe; 8. Outer cladding; 9. Waste heat recovery device; 91. Water inlet; 92. Water outlet; 10. Smoke and air duct; 11. Smoke outlet; 12. Platform escalator. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides a vertical organic heat carrier furnace, such as Figure 1-Figure 3 As shown, it includes an upper furnace body 5, a lower furnace body 3 is installed at the bottom of the upper furnace body 5, a coil body 7 is installed inside the upper furnace body 5, a smoke outlet 11 is arranged on one side of the top of the upper furnace body 5, a smoke outlet 11 is connected to the outside of the smoke outlet 11 with a smoke duct 10, a waste heat recovery device 9 is connected to the bottom of the outer end of the smoke duct 10, an air preheater 2 is connected to the bottom of the waste heat recovery device 9, an exhaust port 21 is arranged on one side of the bottom of the air preheater 2, and by connecting the waste heat recovery device 9 and the air preheater 2 at the bottom of the outer end of the smoke duct 10, the waste heat in the flue gas is recovered and utilized, the heat utilization rate is improved, and environmental pollution is reduced.

[0021] In this embodiment, a foundation 1 is installed at the bottom of the lower furnace body 3, and the lower furnace body 3 and the upper furnace body 5 are connected and fixed by bolts 4 to facilitate the disassembly and assembly of the furnace body. The outer wall of the upper furnace body 5 is provided with an outer cladding 8, and the outer cladding 8 is made of asbestos tile material to prevent safety hazards caused by overheating of the furnace body.

[0022] Specifically, a furnace door 31 is provided on the side wall of the lower furnace body 3, a grate 33 is provided inside the lower furnace body 3, and an air inlet 32 ​​is provided on one side of the bottom of the lower furnace body 3, which effectively controls the air flow in the furnace, makes the combustion more complete, and further improves the thermal efficiency.

[0023] Furthermore, a dust cleaning door 51 is provided on the lower side wall of the upper furnace body 5 , a plurality of dust blowing holes 52 are provided on the top of the upper furnace body 5 , and a dust cleaning port 53 is provided on the bottom of the upper furnace body 5 , so as to facilitate cleaning of dust in the upper furnace body 5 .

[0024] Furthermore, the coil body 7 includes two circles, which are divided into an inner coil and an outer coil. The upper and lower parts of the inner coil and the outer coil are supported and separated by a pad 6 to prevent the coil from deforming or displacing and affecting the flue flow.

[0025] Furthermore, the bottom end of the coil body 7 is connected to a heat transfer oil inlet pipe 71, and the top end of the coil body 7 is connected to a heat transfer oil outlet pipe 72. An oil drain hole is provided at the bottom of the heat transfer oil inlet pipe 71 to facilitate the discharge of waste oil, and an exhaust hole is provided at the top of the heat transfer oil outlet pipe 72 to facilitate the discharge of gas.

[0026] Furthermore, a water inlet 91 is provided on one side of the bottom of the waste heat recovery device 9, a water outlet 92 is provided on one side of the top of the waste heat recovery device 9, and a heating water pipe is provided inside the waste heat recovery device 9. One end of the heating water pipe is connected to the water inlet 91, and the other end of the heating water pipe is connected to the water outlet 92, so as to facilitate the entry of circulating water for the utilization of waste heat.

[0027] Furthermore, a platform ladder 12 is installed on the outer side of the top of the upper furnace body 5, which facilitates maintenance and overhaul by operators and improves the safety of operation.

[0028] When the vertical organic heat carrier furnace of the utility model is used, the fuel is first added manually by using the hand-cranked movable grate 33. The fuel burns in the combustion chamber in the lower furnace body 3, and the high-temperature flue gas generated rises from the furnace, upward along the inner coil (radiation heating surface), and turns to the outside until the top cover is turned downward, enters the convection tube heating surface between the inner coil and the outer coil, and goes down along the gap between them, reaches the bottom and turns 180 degrees upward, enters the outer coil and the cylinder heating surface of the upper furnace body 5, and goes up along the gap between them, and is discharged to the upper smoke outlet 11. This furnace is slightly negative pressure combustion, equipped with a blower and an induced draft fan. Eight soot blowing holes 52 are arranged on the top of the furnace to facilitate cleaning of dust between the inner and outer coils. The ash falls to the lower part of the upper furnace body 5 and is cleaned out of the furnace body through the ash cleaning port 53, ensuring that the flue gas in the furnace body remains unobstructed. The flue gas discharged from the smoke outlet 11 enters the waste heat recovery device 9 and the air preheater 2 through the smoke duct 10, realizing the recovery and utilization of the waste heat in the flue gas, improving the heat utilization rate, and reducing environmental pollution.

[0029] Finally, it should be noted that the electronic components of the air preheater 2, waste heat recovery device 9, etc. in this embodiment are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires respectively, and the specific connection means should refer to the working sequence between the electrical components in the above-mentioned working principle to complete the electrical connection, which are all well-known technologies in the art.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A vertical organic heat carrier furnace, comprising an upper furnace body (5), characterized in that: The bottom of the upper furnace body (5) is installed with a lower furnace body (3), the interior of the upper furnace body (5) is installed with a coil body (7), a smoke outlet (11) is provided on one side of the top of the upper furnace body (5), the outer side of the smoke outlet (11) is connected to a smoke duct (10), the outer bottom of the smoke duct (10) is connected to a waste heat recovery device (9), the bottom end of the waste heat recovery device (9) is connected to an air preheater (2), and an exhaust port (21) is provided on one side of the bottom of the air preheater (2).

2. The vertical organic heat carrier furnace according to claim 1, characterized in that: A foundation (1) is installed at the bottom of the lower furnace body (3); the lower furnace body (3) and the upper furnace body (5) are connected and fixed by bolts (4); and the outer wall of the upper furnace body (5) is provided with an outer cladding layer (8).

3. The vertical organic heat carrier furnace according to claim 1 is characterized in that: A furnace door (31) is provided on the side wall of the lower furnace body (3), a grate (33) is provided inside the lower furnace body (3), and an air inlet (32) is provided on one side of the bottom of the lower furnace body (3).

4. The vertical organic heat carrier furnace according to claim 1 is characterized in that: The lower side wall of the upper furnace body (5) is provided with an ash cleaning door (51), the top of the upper furnace body (5) is provided with a plurality of ash blowing holes (52), and the bottom of the upper furnace body (5) is provided with an ash cleaning port (53).

5. The vertical organic heat carrier furnace according to claim 1, characterized in that: The coil body (7) comprises two circles, which are divided into an inner coil and an outer coil. The upper and lower parts of the inner coil and the outer coil are supported and separated by a pad (6).

6. The vertical organic heat carrier furnace according to claim 1, characterized in that: The bottom end of the coil body (7) is connected to a heat transfer oil inlet pipe (71), the top end of the coil body (7) is connected to a heat transfer oil outlet pipe (72), the bottom of the heat transfer oil inlet pipe (71) is provided with an oil drain hole, and the top of the heat transfer oil outlet pipe (72) is provided with an exhaust hole.

7. The vertical organic heat carrier furnace according to claim 1 is characterized in that: A water inlet (91) is provided on one side of the bottom of the waste heat recovery device (9), a water outlet (92) is provided on one side of the top of the waste heat recovery device (9), and a heating water pipe is provided inside the waste heat recovery device (9), one end of the heating water pipe is connected to the water inlet (91), and the other end of the heating water pipe is connected to the water outlet (92).

8. The vertical organic heat carrier furnace according to claim 1, characterized in that: A platform ladder (12) is installed on the outer side of the top of the upper furnace body (5).

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