Outdoor explosion-proof hot air blower set

Abstract

The present application relates to the technical field of hot air blower, and discloses an outdoor explosion-proof hot air blower set, which comprises a bottom plate, an explosion-proof blower and a heating module, the explosion-proof blower is installed on the upper surface of the bottom plate, and the heating module is installed at the air outlet end of the explosion-proof blower; the heating module comprises a hot air pipe and an electric heating block, one end of the hot air pipe is installed at the air outlet end of the explosion-proof blower, the electric heating block is installed inside the hot air pipe, one end of the electric heating block is provided with a first contraction section, the outer surface of the hot air pipe is fixedly provided with a wind increasing module, the wind increasing module comprises an outer sleeve, a second contraction section, a first through slot and a shielding ring, the outer sleeve is fixedly installed on the outer surface of the hot air pipe, the first through slot is formed on the outer surface of the outer sleeve close to the explosion-proof blower, and the shielding ring is slidably connected to the outer surface of the outer sleeve; the device is low in pressure, energy-saving, adjustable in hinge angle, and switchable in detachable mode, and effectively solves the problems of high energy consumption, fixed angle and single air outlet of the traditional blower.

Description

Technical Field

[0001] This invention relates to the field of hot air blower technology, and more specifically, to outdoor explosion-proof hot air blower units. Background Technology

[0002] Outdoor explosion-proof hot air units are specialized outdoor heating and ventilation equipment with explosion-proof performance. They are mainly used in flammable and explosive outdoor environments such as petroleum, chemical, and mining industries. By generating hot air and delivering it outward, they can heat, dehumidify, or ventilate outdoor spaces, ensuring the comfort and safety of outdoor working environments.

[0003] However, existing outdoor explosion-proof hot air units have significant shortcomings in energy consumption, ease of use, and airflow adaptability, making it difficult to meet diverse outdoor usage needs. The airflow of existing units is directly related to motor power and duct size; increasing airflow usually requires increasing motor power, which significantly increases energy consumption. Traditional explosion-proof hot air blowers often have their outlets fixed to the unit, making airflow direction and angle unadjustable, resulting in poor flexibility. Furthermore, the outlets only have protective nets to block debris, making it impossible to adjust the airflow mode according to the specific site conditions, hindering the switching between diffused and concentrated airflow, and further compatibility. Therefore, it is urgent to solve these problems. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides an outdoor explosion-proof hot air unit, which aims to solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an outdoor explosion-proof hot air unit, comprising a base plate, an explosion-proof fan, and a heating module. The explosion-proof fan is mounted on the base plate, and the heating module is mounted on the outlet end of the explosion-proof fan. The heating module includes a hot air duct and an electric heating block. One end of the hot air duct is mounted on the outlet end of the explosion-proof fan. A rainproof edge is fixedly connected to the upper side of the inlet end of the explosion-proof fan. The electric heating block is installed inside the hot air duct. An air-enhancing module is fixedly mounted on the outer surface of the hot air duct. The air-enhancing module includes an outer sleeve, a second contraction section, a first through groove, and a shielding ring. The outer sleeve is fixedly mounted on the outer surface of the hot air duct. The second contraction section is located at the end of the outer sleeve away from the explosion-proof fan. The first through groove is opened on the outer surface of the outer sleeve near the explosion-proof fan. The shielding ring is slidably connected to the outer surface of the outer sleeve, and the outer surface of the shielding ring has a second through groove.

[0006] Preferably, a hinge is installed on the upper surface of the base plate, and an installation plate is fixedly connected to the outer surface of the explosion-proof fan. The explosion-proof fan is hinged to the upper surface of the base plate through the hinge and the installation plate. An adjustment module is provided on the upper surface of the base plate. The adjustment module includes a first slide groove, a first slider, a first connecting rod, an installation hoop, a lead screw, and a rotating handle. The first slide groove is formed on the upper surface of the base plate. The first slider is slidably connected to the inner wall of the first slide groove. The first connecting rod is hinged to the upper surface of the first slider. The installation hoop is hinged to one end of the first connecting rod. The lead screw is rotatably connected to the inside of the first slide groove, and the outer surface of the lead screw is drively connected to the inner wall of the first slider. The rotating handle is fixedly installed on one end of the lead screw, and the installation hoop is fixedly installed on the outer surface of the outer sleeve.

[0007] Preferably, the outer surface of the hot air duct and the outer surface of the outer sleeve are provided with an opening and closing module. The opening and closing module includes a second slide groove, a second connecting rod, a support frame, a third connecting rod, and a switch handle. The second slide groove is opened on the outer surface of the outer sleeve. The second connecting rod is hinged to the outer surface of the shielding ring. The support frame is fixedly installed on the outer surface of the hot air duct. One end of the third connecting rod is rotatably connected to the upper end of the support frame, and the middle part of the third connecting rod is rotatably connected to one end of the second connecting rod. The switch handle is fixedly installed on one end of the third connecting rod.

[0008] Preferably, the inner wall of the shielding ring is provided with a second slider, the second slider is slidably connected to the inner wall of the second groove, a plurality of first through grooves are provided and are evenly distributed in a ring array, a plurality of second through grooves are provided and are evenly distributed in a ring array, and the second through grooves are provided corresponding to the first through grooves.

[0009] Preferably, a baffle is fixedly connected to the outer surface of the hot air duct, and the end of the outer sleeve near the explosion-proof fan is tightly connected to the outer surface of the baffle.

[0010] Preferably, an air duct is formed between the outer surface of the hot air duct and the inner wall of the outer sleeve, and a first contraction section is fixedly connected to the right end of the hot air duct.

[0011] Preferably, the right end of the outer sleeve is detachably connected to an air guide module, which includes an air guide duct, an air guide ring, and an air guide body. The inner wall of one end of the air guide duct is provided with a first internal thread, and the inner wall of the other end of the air guide duct is provided with a second internal thread. The outer surface of the right end of the outer sleeve is provided with an external thread. The air guide ring is fixedly installed inside the air guide duct by a mounting plate, and the air guide body is fixedly installed at the center inside the air guide duct by a mounting plate. An annular handle is fixedly connected to the outer surface of the air guide duct.

[0012] Preferably, the air guide ring is provided with a plurality of concentric circles distributed in a diffused manner, one end of the air guide ring is diffused and the other end is contracted, the air guide body is conical at the contracted end of the air guide ring and semi-circular at the diffused end of the air guide ring.

[0013] Compared with the prior art, the present invention provides an outdoor explosion-proof hot air unit, which has the following beneficial effects: 1. This outdoor explosion-proof hot air unit, through the installation of an outer casing, achieves the effect of increasing airflow and saving energy. The coordinated design of the hot air duct and the outer casing creates an air duct between the outer surface of the hot air duct and the inner wall of the outer casing during operation. The first contraction section at the right end of the hot air duct is compressed and accelerated when air passes through, generating a low-pressure zone. According to Bernoulli's principle, this low-pressure zone guides the airflow through the duct, thereby increasing airflow. Furthermore, since the duct is outside the hot air duct, it allows for the reuse of the high-temperature air surrounding the duct, increasing airflow while simultaneously recovering energy, significantly reducing energy consumption and achieving high efficiency and energy saving.

[0014] 2. This outdoor explosion-proof hot air unit, through the setting of the adjustment module, enables the adjustment of the air outlet angle. By coordinating the rotating handle, lead screw, first slider, first connecting rod and mounting clamp, the direction and angle of the air outlet can be flexibly adjusted during use, thereby improving the flexibility of use and achieving the purpose of adapting to the wind direction requirements of different outdoor operation scenarios.

[0015] 3. This outdoor explosion-proof hot air unit, through the design of the air duct, air guide ring, and air guide body, enables the unit to switch between different air output modes. By coordinating the air duct, air guide ring, and air guide body, users can freely choose whether to blow out diffused or contracted air during use. Simply unscrew the air duct to switch between the two directions, which is quite convenient and achieves the purpose of adapting to different usage scenarios. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the front cross-section of the present invention; Figure 4 This is a three-dimensional structural diagram of the base plate of the present invention; Figure 5 This is a three-dimensional structural schematic diagram of the outer sleeve of the present invention; Figure 6 This is a three-dimensional structural diagram of the hot air duct of the present invention; Figure 7 This is a three-dimensional structural schematic diagram of the shielding ring of the present invention; Figure 8 For the present invention Figure 4 Schematic diagram of the structure at point A; Figure 9 For the present invention Figure 2 Schematic diagram of the structure at point B; Figure 10 This is a three-dimensional structural diagram of the air guide module of the present invention.

[0017] In the diagram: 1. Base plate; 2. Hinge; 3. First slide groove; 4. First slider; 5. First connecting rod; 6. Mounting clamp; 7. Lead screw; 8. Rotary handle; 9. Mounting plate; 10. Explosion-proof fan; 11. Rain cover; 12. Hot air duct; 13. Electric heating block; 14. First contraction section; 15. Outer sleeve; 16. Second slide groove; 17. Second contraction section; 18. First through groove; 19. Second slider; 20. Shielding ring; 21. Second through groove; 22. Second connecting rod; 23. Support frame; 24. Third connecting rod; 25. Switch handle; 26. External thread; 27. Air guide duct; 28. First internal thread; 29. ​​Second internal thread; 30. Mounting plate; 31. Air guide ring; 32. Air guide body; 33. Ring handle. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0021] Please see Figures 1-10The outdoor explosion-proof hot air unit provided in this embodiment includes a base plate 1, an explosion-proof fan 10, a heating module, and an air-enhancing module. The heating module includes a hot air duct 12, an electric heating block 13, and a first contraction section 14. The air-enhancing module includes an outer casing 15, a second contraction section 17, a first through groove 18, a shielding ring 20, and a second through groove 21. One end of the hot air duct 12 is connected to the air outlet of the explosion-proof fan 10. The electric heating block 13 is located inside the hot air duct 12. The first contraction section 14 is located at the right end of the hot air duct 12. The outer casing 15 is fixed to the outer surface of the hot air duct 12. The second contraction section 17 is located at the right end of the outer casing 15. The first through groove 18 is opened at the end of the outer casing 15 near the explosion-proof fan 10. The shielding ring 20 is slidably connected to the outer surface of the outer casing 15 and has a second through groove 21. An air duct is formed between the hot air duct 12 and the outer casing 15, constituting an energy-saving air-enhancing core structure.

[0022] Specifically, after the air supplied by the explosion-proof fan 10 is heated by the hot air pipe 12 and the electric heating block 13, it is accelerated through the first contraction section 14 and a low pressure is formed at the second contraction section 17. The low pressure draws in high-temperature air in the air duct through the first channel 18, realizing waste heat recovery and doubling of air volume. The air output efficiency can be improved without increasing the fan power, and energy consumption can be reduced.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 The adjustment module of the outdoor explosion-proof hot air unit includes a first slide groove 3, a first slider 4, a first connecting rod 5, a mounting clamp 6, a lead screw 7, and a rotating handle 8. The first slide groove 3 is opened on the upper surface of the base plate 1. The first slider 4 is slidably connected to the first slide groove 3. The first connecting rod 5 is hinged to the first slider 4. The mounting clamp 6 is hinged to the first connecting rod 5 and fixes the outer sleeve 15. The lead screw 7 is connected to the first slider 4. The rotating handle 8 fixes one end of the lead screw 7. The explosion-proof fan 10 is hinged to the base plate 1 through the hinge 2 and the mounting plate 9, forming an angle-adjustable key structure.

[0024] Specifically, rotating the handle 8 drives the lead screw 7 to rotate, which in turn drives the first slider 4 to slide along the first slide groove 3. The first connecting rod 5 pushes the mounting clamp 6, causing the outer sleeve 15, the hot air pipe 12, and the explosion-proof fan 10 to rotate around the hinge 2, flexibly adjusting the air outlet pitch angle to adapt to different outdoor operation wind direction requirements.

[0025] Please see Figure 1 , Figure 2 , Figure 3 and Figure 10The outdoor explosion-proof hot air unit has an air outlet switching structure consisting of an air duct 27, an air guide ring 31, and an air guide body 32. The air duct 27 has a first internal thread 28 at one end and a second internal thread 29 at the other end, and is detachably connected to the outer sleeve 15 through an external thread 26. The air guide ring 31 and the air guide body 32 are fixed inside the air duct 27 by mounting pieces 30. The air guide ring 31 has one end that expands and one end that contracts, and the air guide body 32 has one end that is conical and one end that is semi-circular. The outer surface of the air duct 27 has an annular handle 33, which constitutes the key structure for mode switching.

[0026] Specifically, hold the ring handle 33 and unscrew the air duct 27, flip it over and screw it back on; the air guide ring 31 with the diffuser end facing outwards achieves large-area diffused air delivery, and the constriction end facing outwards works with the air guide body 32 to achieve centralized directional air delivery, quickly switching the air outlet mode to adapt to different working conditions.

[0027] In summary, when using the entire device: first, rotating the handle 8 drives the lead screw 7 to rotate, causing the first slider 4 to slide within the first slide groove 3. This, in turn, drives the mounting clamp 6 and the outer sleeve 15 to rotate around the hinge 2 via the first connecting rod 5, thus adjusting the overall air outlet angle. Subsequently, operating the switch handle 25 drives the third connecting rod 24 and the second connecting rod 22 to slide the shielding ring 20 along the second slide groove 16, controlling the overlap opening of the first through groove 18 and the second through groove 21, thereby adjusting the additional air intake volume. After the explosion-proof fan 10 is started, the airflow enters the hot air duct 12 and is heated by the electric heating block 13. The hot air is accelerated through the first contraction section 14 and forms a low pressure at the second contraction section 17. According to Bernoulli's principle, the airflow in the duct between the hot air duct 12 and the outer casing 15 is drawn in together to achieve airflow enhancement and waste heat recovery. According to the usage requirements, the air guide duct 27 can be unscrewed from the outer casing 15 through the ring handle 33, flipped over and re-screwed. The air guide ring 31 and the air guide body 32 are used to achieve centralized air supply or diffused air supply respectively. It is easy to operate and suitable for a variety of outdoor explosion-proof operation scenarios.

[0028] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An outdoor explosion-proof hot air unit, comprising a base plate (1), an explosion-proof fan (10), and a heating module, wherein the explosion-proof fan (10) is mounted on the base plate (1), and the heating module is mounted at the air outlet of the explosion-proof fan (10), characterized in that: The heating module includes a hot air duct (12) and an electric heating block (13). One end of the hot air duct (12) is installed at the air outlet of an explosion-proof fan (10). A rain shield (11) is fixedly connected to the upper side of the air inlet of the explosion-proof fan (10). The electric heating block (13) is installed inside the hot air duct (12). An air-enhancing module is fixedly installed on the outer surface of the hot air duct (12). The air-enhancing module includes an outer sleeve (15), a second contraction section (17), and a first through slot (18). 18) and shielding ring (20), the outer tube (15) is fixedly installed on the outer surface of the hot air duct (12), the second contraction section (17) is provided at the end of the outer tube (15) away from the explosion-proof fan (10), the first through groove (18) is opened on the outer surface of the outer tube (15) near the explosion-proof fan (10), the shielding ring (20) is slidably connected to the outer surface of the outer tube (15), and the outer surface of the shielding ring (20) is provided with a second through groove (21).

2. The outdoor explosion-proof hot air unit according to claim 1, characterized in that: A hinge (2) is installed on the upper surface of the base plate (1), and an mounting plate (9) is fixedly connected to the outer surface of the explosion-proof fan (10). The explosion-proof fan (10) is hinged to the upper surface of the base plate (1) through the hinge (2) and the mounting plate (9). An adjustment module is provided on the upper surface of the base plate (1). The adjustment module includes a first slide groove (3), a first slider (4), a first connecting rod (5), a mounting clamp (6), a lead screw (7), and a rotating handle (8). The first slide groove (3) is opened on the base plate (1). On the upper surface, the first slider (4) is slidably connected to the inner wall of the first groove (3), the first connecting rod (5) is hinged to the upper surface of the first slider (4), the mounting hoop (6) is hinged to one end of the first connecting rod (5), the lead screw (7) is rotatably connected to the inside of the first groove (3), and the outer surface of the lead screw (7) is connected to the inner wall of the first slider (4) in a transmission connection. The rotating handle (8) is fixedly installed on one end of the lead screw (7), and the mounting hoop (6) is fixedly installed on the outer surface of the outer sleeve (15).

3. The outdoor explosion-proof hot air unit according to claim 1, characterized in that: The outer surface of the hot air duct (12) and the outer surface of the outer sleeve (15) are provided with an opening and closing module. The opening and closing module includes a second slide groove (16), a second connecting rod (22), a support frame (23), a third connecting rod (24) and a switch handle (25). The second slide groove (16) is opened on the outer surface of the outer sleeve (15). The second connecting rod (22) is hinged to the outer surface of the shielding ring (20). The support frame (23) is fixedly installed on the outer surface of the hot air duct (12). One end of the third connecting rod (24) is rotatably connected to the upper end of the support frame (23), and the middle part of the third connecting rod (24) is rotatably connected to one end of the second connecting rod (22). The switch handle (25) is fixedly installed on one end of the third connecting rod (24).

4. The outdoor explosion-proof hot air unit according to claim 1, characterized in that: The inner wall of the shielding ring (20) is provided with a second slider (19), which is slidably connected to the inner wall of the second slide groove (16). The first through groove (18) is provided with a plurality of slots and is evenly distributed in a ring array. The second through groove (21) is provided with a plurality of slots and is evenly distributed in a ring array. The second through groove (21) is provided in correspondence with the first through groove (18).

5. The outdoor explosion-proof hot air unit according to claim 1, characterized in that: A baffle is fixedly connected to the outer surface of the hot air duct (12), and the end of the outer sleeve (15) near the explosion-proof fan (10) is tightly connected to the outer surface of the baffle.

6. The outdoor explosion-proof hot air unit according to claim 1, characterized in that: An air duct is formed between the outer surface of the hot air duct (12) and the inner wall of the outer sleeve (15), and a first contraction section (14) is fixedly connected to the right end of the hot air duct (12).

7. The outdoor explosion-proof hot air unit according to claim 1, characterized in that: The right end of the outer tube (15) is detachably connected to an air guide module, which includes an air guide pipe (27), an air guide ring (31), and an air guide body (32). The inner wall of one end of the air guide pipe (27) is provided with a first internal thread (28), and the inner wall of the other end of the air guide pipe (27) is provided with a second internal thread (29). The outer surface of the right end of the outer tube (15) is provided with an external thread (26). The air guide ring (31) is fixedly installed inside the air guide pipe (27) by a mounting piece (30). The air guide body (32) is fixedly installed at the center inside the air guide pipe (27) by a mounting piece (30). The outer surface of the air guide pipe (27) is fixedly connected with a ring handle (33).

8. The outdoor explosion-proof hot air unit according to claim 7, characterized in that: The air guide ring (31) is provided with a plurality of concentric circles that diffuse outwards. One end of the air guide ring (31) is diffused, and the other end of the air guide ring (31) is constricted. The air guide body (32) is conical at the constricted end of the air guide ring (31) and semi-circular at the diffused end of the air guide ring (31).

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