Large hand-fired vertical organic heat transfer material furnace
By setting up a soot blowing port and ash cleaning port in the organic heat carrier furnace and adopting a multi-smoke passage design with inner and outer coil structures, the problem of low ash cleaning efficiency is solved, the thermal efficiency is improved and the service life is extended.
Patent Information
- Application Number
- CN202422116967.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The existing organic heat carrier furnaces are inefficient in ash cleaning, resulting in incomplete dust cleaning, which can easily cause blockage of flue and heat exchange coils, affecting the thermal efficiency and service life of the furnace body.
The soot blowing port on the top of the furnace body and the dust cleaning port on the outside of the bottom are designed. Combined with the multi-smoke passage channels of the inner and outer coil structures, the ash cleaning method is optimized, the heat exchange area is increased and the dust distribution is evenly distributed, and the upper and lower dust cleaning doors are set up for easy operation.
It achieves efficient ash cleaning, prevents blockage of flue and heat exchange coils, improves thermal efficiency and extends service life.
Smart Images
Figure CN223243032U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of boilers, in particular to a large hand-fired vertical organic heat carrier furnace. Background Art
[0002] In the field of boiler technology, organic heat carrier furnaces are an important thermal energy equipment and are widely used in various industrial production. However, there are some deficiencies in the design of existing organic heat carrier furnaces, especially in the dust cleaning process. Due to the complex structure of the furnace body, dust easily accumulates in the furnace body.
[0003] Traditional dust cleaning methods are often inefficient and inconvenient to operate, resulting in incomplete dust removal, which can easily cause blockage of the flue and heat exchange coil, thus affecting the thermal efficiency and service life of the furnace. Therefore, to address this problem, it is necessary to design a large-scale hand-fired vertical organic heat carrier furnace that is easier to clean and can effectively prevent blockage. Utility Model Content
[0004] The purpose of the present utility model is to provide a large hand-fired vertical organic heat carrier furnace to solve the problem that the traditional dust cleaning method proposed in the above background technology is often inefficient and inconvenient to operate, which leads to incomplete dust cleaning and easily causes blockage of the flue and heat exchange coil, thereby affecting the thermal efficiency and service life of the furnace body.
[0005] To achieve the above-mentioned objectives, the utility model provides a large hand-fired vertical organic heat carrier furnace, comprising a furnace body, a heat exchange coil installed inside the furnace body, a combustion chamber installed at the bottom of the furnace body, a smoke pipe connected to the top side of the furnace body, an air preheater connected to the outer end of the smoke pipe, a waste heat recovery device connected to the bottom side of the air preheater, a soot blowing port provided at the top of the furnace body, a soot cleaning port provided at the outer side of the bottom of the furnace body, a grate installed inside the combustion chamber, and a primary air inlet pipe provided at the bottom side of the grate.
[0006] Preferably, a base is installed at the bottom of the combustion chamber.
[0007] Preferably, the heat exchange coil is divided into an inner coil and an outer coil, the interior of the inner coil is a first smoke-pass channel, a second smoke-pass channel is arranged between the inner coil and the outer coil, and a third smoke-pass channel is arranged between the outer wall of the outer coil and the inner wall of the furnace body.
[0008] Preferably, the bottom end of the first smoke-pass channel is connected to the combustion chamber, the top end of the first smoke-pass channel is connected to the second smoke-pass channel, the bottom end of the second smoke-pass channel is connected to the third smoke-pass channel, and the top end of the third smoke-pass channel is connected to the smoke pipe.
[0009] Preferably, an upper ash cleaning door is provided on the outer wall of the furnace body near the upper end of the third smoke path channel, and a lower ash cleaning door is provided on the outer wall of the furnace body near the lower end of the third smoke path channel.
[0010] Preferably, a ladder is installed on the top of the furnace body.
[0011] Preferably, a heat transfer oil outlet is provided at the top end of the heat exchange coil, and a heat transfer oil inlet is provided at the bottom end of the heat exchange coil.
[0012] Preferably, a furnace door is provided on the outer wall of the combustion chamber, a secondary air inlet pipe is horizontally provided above the interior of the combustion chamber, a plurality of air blowing ports are provided on the outer wall of the secondary air inlet pipe, and one end of the secondary air inlet pipe passes through the outer wall of the furnace body and is connected to the primary air inlet pipe.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] This large, hand-fired, vertical organic heat transfer furnace achieves more efficient cleaning through optimized furnace structure and cleaning design, effectively preventing blockage of the flue and heat exchange coils. Specifically, the soot blowing port on the top of the furnace and the cleaning port on the outside of the bottom facilitate cleaning operations, improving convenience and efficiency.
[0015] The heat exchange coils utilize both inner and outer coils, creating multiple flue channels. This not only increases the heat exchange area and improves thermal efficiency, but also ensures a more even distribution of dust within the flue, reducing the risk of localized blockage. Furthermore, upper and lower ash cleaning doors are located on the outer wall of the furnace, near the upper and lower ends of the third flue channel, further facilitating cleaning operations and ensuring long-term stable operation of the furnace, extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a side structural diagram of the utility model;
[0018] Figure 3 This is a schematic diagram of the top structure of the utility model;
[0019] The meaning of each number in the figure is:
[0020] 1. Furnace body; 11. Soot blowing port; 12. Upper ash cleaning door; 13. Lower ash cleaning door; 14. Soot cleaning port; 15. Escalator; 2. Heat exchange coil; 21. Inner coil; 22. Outer coil; 23. Thermal oil inlet; 24. Thermal oil outlet; 3. Combustion chamber; 31. Grate; 32. Primary air inlet duct; 33. Secondary air inlet duct; 34. Furnace door; 4. Base; 5. Smoke duct; 6. Air preheater; 7. Waste heat recovery device. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] The utility model provides a large hand-fired vertical organic heat carrier furnace, such as Figure 1-Figure 3 As shown, it includes a furnace body 1, a heat exchange coil 2 is installed inside the furnace body 1, a combustion chamber 3 is installed at the bottom of the furnace body 1, a smoke pipe 5 is connected to one side of the top of the furnace body 1, the outer end of the smoke pipe 5 is connected to an air preheater 6, and the bottom side of the air preheater 6 is connected to a waste heat recovery device 7. A soot blowing port 11 is provided at the top of the furnace body 1, and a soot cleaning port 14 is provided on the outer side of the bottom of the furnace body 1. A grate 31 is installed inside the combustion chamber 3, and a primary air inlet pipe 32 is provided on the bottom side of the grate 31. Through the carefully designed structure and component layout, efficient and stable heat energy conversion and utilization are achieved. Specifically, the heat exchange coil 2 installed inside the furnace body 1 effectively increases the heat exchange area and improves the heat energy conversion efficiency. The combustion chamber 3 installed at the bottom of the furnace body 1 provides a stable and reliable combustion environment for the furnace body, ensuring the continuous output of heat energy. At the same time, the smoke pipe 5 connected to one side of the top of the furnace body 1, and the air preheater 6 and the waste heat recovery device 7 connected to the outer end of the smoke pipe 5 not only realize the effective discharge of flue gas, but also further improve the thermal efficiency of the furnace body by preheating air and recovering waste heat, and realize full utilization of energy. The waste heat recovery device 7 is a closed chamber, and the flue gas enters from the bottom and is discharged from the top. The medium to be heat exchanged enters from one side, flows through the spiral pipeline in the waste heat recovery device 7, and is discharged from the top of the waste heat recovery device 7, realizing waste heat recovery of the flue gas through the spiral pipeline.
[0023] Furthermore, the sootblower 11 on the top and the soot cleaning port 14 on the outside of the bottom of the furnace body 1 greatly facilitate routine maintenance and cleaning of the furnace body, effectively preventing dust accumulation within the furnace body and clogging of the flue and heat exchange coils, thereby ensuring long-term stable operation of the furnace body. The grate 31 and primary air inlet duct 32 installed within the combustion chamber 3 further optimize the combustion process, improve combustion efficiency, and provide the furnace body with more stable and efficient heat output.
[0024] In this embodiment, a base 4 is installed at the bottom of the combustion chamber 3 to facilitate the support and stability of the entire device.
[0025] Specifically, the heat exchange coil 2 is divided into an inner coil 21 and an outer coil 22. The interior of the inner coil 21 is a first smoke-pass channel, a second smoke-pass channel is arranged between the inner coil 21 and the outer coil 22, and a third smoke-pass channel is arranged between the outer wall of the outer coil 22 and the inner wall of the furnace body 1. Sufficient heat exchange of the flue gas is achieved through the three-pass flue.
[0026] Furthermore, the bottom end of the first smoke-pass channel is connected to the combustion chamber 3 , the top end of the first smoke-pass channel is connected to the second smoke-pass channel, the bottom end of the second smoke-pass channel is connected to the third smoke-pass channel, and the top end of the third smoke-pass channel is connected to the smoke pipe 5 .
[0027] Furthermore, an upper ash cleaning door 12 is provided on the outer wall of the furnace body 1 near the upper end of the third flue channel, and a lower ash cleaning door 13 is provided on the outer wall of the furnace body 1 near the lower end of the third flue channel to facilitate dust cleaning in the flue.
[0028] Furthermore, a ladder 15 is installed on the top of the furnace body 1 to facilitate manual climbing for maintenance operations.
[0029] Furthermore, a heat transfer oil outlet 24 is provided at the top end of the heat exchange coil 2, and a heat transfer oil inlet 23 is provided at the bottom end of the heat exchange coil 2, which facilitates the inflow and outflow of the heat transfer oil and facilitates heat exchange.
[0030] Furthermore, a furnace door 34 is provided on the outer wall of the combustion chamber 3, and a secondary air inlet pipe 33 is horizontally provided above the interior of the combustion chamber 3. A plurality of air blowing ports are provided on the outer wall of the secondary air inlet pipe 33. One end of the secondary air inlet pipe 33 passes through the outer wall of the furnace body 1 and is connected to the primary air inlet pipe 32, so that air can fully enter the combustion chamber, ensuring sufficient combustion of the fuel and avoiding the generation of a large amount of impurities that may cause equipment blockage.
[0031] During use, the large, hand-fired, vertical organic heat transfer medium furnace of the present invention begins with the combustion of fuel in the combustion chamber 3, generating high-temperature flue gas. This flue gas first enters the first flue-pass channel within the inner coil 21 of the heat exchange coil 2, where it exchanges heat with the thermal oil within the inner coil, raising the oil's temperature. The flue gas then enters the second flue-pass channel between the inner coil 21 and the outer coil 22, where it further exchanges heat with the thermal oil. Finally, the flue gas enters the third flue-pass channel between the outer coil 22 and the inner wall of the furnace body 1, completing the final heat exchange process.
[0032] After sufficient heat exchange in the three-pass flue, the flue gas temperature decreases and is then discharged through the flue pipe 5 at the top of the furnace body 1. During the discharge process, the flue gas first passes through the air preheater 6, which preheats the air entering the combustion chamber and improves combustion efficiency. The flue gas then enters the waste heat recovery device 7, where it exchanges heat with the medium to be exchanged through a spiral pipeline, further recovering waste heat and achieving full energy utilization.
[0033] During the combustion process, the primary air inlet 32 provides the necessary air to the combustion chamber 3 to ensure fuel combustion. At the same time, the secondary air inlet 33 allows air to enter the combustion chamber more fully, ensuring sufficient fuel combustion and avoiding the generation of large amounts of impurities that may cause equipment clogging.
[0034] In addition, the soot blowing port 11 arranged on the top of the furnace body 1 and the soot cleaning port 14 arranged on the outer side of the bottom, as well as the upper soot cleaning door 12 and the lower soot cleaning door 13 on the outer wall of the furnace body near the third smoke path channel, all provide great convenience for the daily maintenance and soot cleaning operations of the furnace body, effectively prevent the accumulation of dust in the furnace body, avoid the blockage of the flue and the heat exchange coil, and ensure the long-term stable operation of the furnace body.
[0035] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A large hand-fired vertical organic heat carrier furnace, comprising a furnace body (1), characterized in that: A heat exchange coil (2) is installed inside the furnace body (1), a combustion chamber (3) is installed at the bottom of the furnace body (1), a smoke pipe (5) is connected to one side of the top of the furnace body (1), an air preheater (6) is connected to the outer end of the smoke pipe (5), a waste heat recovery device (7) is connected to the bottom side of the air preheater (6), an ash blowing port (11) is provided at the top of the furnace body (1), an ash cleaning port (14) is provided at the outer side of the bottom of the furnace body (1), a grate (31) is installed inside the combustion chamber (3), and a primary air inlet pipe (32) is provided at one side of the bottom of the grate (31).
2. The large hand-fired vertical organic heat carrier furnace according to claim 1 is characterized in that: A base (4) is installed at the bottom of the combustion chamber (3).
3. The large hand-fired vertical organic heat carrier furnace according to claim 1 is characterized in that: The heat exchange coil (2) is divided into an inner coil (21) and an outer coil (22); the interior of the inner coil (21) is a first smoke-pass channel; a second smoke-pass channel is provided between the inner coil (21) and the outer coil (22); and a third smoke-pass channel is provided between the outer wall of the outer coil (22) and the inner wall of the furnace body (1).
4. The large hand-fired vertical organic heat carrier furnace according to claim 3 is characterized in that: The bottom end of the first smoke-pass channel is connected to the combustion chamber (3), the top end of the first smoke-pass channel is connected to the second smoke-pass channel, the bottom end of the second smoke-pass channel is connected to the third smoke-pass channel, and the top end of the third smoke-pass channel is connected to the smoke pipe (5).
5. The large hand-fired vertical organic heat carrier furnace according to claim 4 is characterized in that: An upper ash cleaning door (12) is provided on the outer wall of the furnace body (1) near the upper end of the third smoke passage, and a lower ash cleaning door (13) is provided on the outer wall of the furnace body (1) near the lower end of the third smoke passage.
6. The large hand-fired vertical organic heat carrier furnace according to claim 1 is characterized in that: A ladder (15) is installed on the top of the furnace body (1).
7. The large hand-fired vertical organic heat carrier furnace according to claim 1 is characterized in that: The top end of the heat exchange coil (2) is provided with a heat transfer oil outlet (24), and the bottom end of the heat exchange coil (2) is provided with a heat transfer oil inlet (23).
8. The large hand-fired vertical organic heat carrier furnace according to claim 1 is characterized in that: The outer wall of the combustion chamber (3) is provided with a furnace door (34), and a secondary air inlet pipe (33) is horizontally provided above the interior of the combustion chamber (3). The outer wall of the secondary air inlet pipe (33) is provided with a plurality of air blowing ports, and one end of the secondary air inlet pipe (33) passes through the outer wall of the furnace body (1) and is connected to the primary air inlet pipe (32).