Air circulation equipment of gasoline power generator set and circulation method of air circulation equipment

Abstract

The invention discloses gasoline power generator set air circulation equipment and a circulation method thereof.The gasoline power generator set air circulation equipment comprises a bottom plate, a rack installed at one end of the bottom plate, a gasoline engine installed above the bottom plate, a generator body installed in the middle of the rack and a circulation mechanism arranged at one end of the gasoline engine and further comprises a cleaning mechanism arranged above the gasoline engine; the device further comprises an adjusting mechanism arranged in the rotating ring, and a damping mechanism is arranged below the bottom plate. Fresh air is guided into the cylinder through the spiral air channel to make contact with the heat conduction oil, high-temperature tail gas of the gasoline power generator set is guided into the cylinder through the first spiral pipe and the second spiral pipe, heat conduction is conducted between the high-temperature tail gas and the fresh air under the heat conduction effect of the heat conduction oil, and the tail gas temperature of the gasoline power generator set is reduced. And meanwhile, the gas inlet temperature of the gasoline power generator set is increased, heat of tail gas is utilized, and the power generation efficiency of the gasoline power generator set is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gasoline-powered generator sets, and particularly to an air circulation device for a gasoline-powered generator set and its circulation method. Background Art

[0002] A gasoline generator set is a small temporary power source, mainly used as a power source for communication, lighting, broadcasting, and small power-consuming devices with large mobility. The set consists of a gasoline engine, a generator, a frame, and a switch box. The set has the characteristics of delicate structure, light weight, fast starting speed, reliable operation, and easy maintenance. It is mainly used as an emergency backup power source for industrial and mining enterprises, hospitals, and buildings, an independent power source for communication, ships, vehicles, and special purposes, a mobile power source required for national defense, field construction, oil exploration, etc., and power and lighting for living in power-deficient areas.

[0003] In the prior art, a Chinese invention patent with the authorization announcement number CN113982734B provides an air-cooled heat dissipation device and method for a gasoline generator set. The air-cooled heat dissipation device includes a housing and a generator set disposed inside the housing. The generator set includes a generator and an engine connected to each other. Axial fans and air outlets are respectively disposed on the outer walls of opposite sides of the housing. The axial fans are disposed close to the generator, and the air outlets are disposed close to the engine. An engine heat dissipation channel and a generator heat dissipation channel are formed inside the housing. One end of the engine heat dissipation channel is located at the axial fan, and after passing through the engine, the other end is located at the air outlet. One end of the generator heat dissipation channel is located at the axial fan, and after passing through the generator, the other end is connected to the engine heat dissipation channel. The present invention introduces cold air through the shortest heat dissipation channel and discharges hot air, and the introduced cold air flows around the generator set to achieve all-round heat dissipation; and effectively reduces the noise generated during the operation of the generator set.

[0004] Problems compared with the prior art: Some existing air circulation devices for gasoline-powered generator sets cannot utilize the exhaust gas of the gasoline engine set, resulting in waste of heat, reducing the power generation efficiency of the gasoline-powered generator set, and cannot automatically clean the air intake filter of the gasoline generator, and it is easy to cause air intake obstruction of the gasoline generator during long-term power generation.

[0005] Therefore, there is an urgent need for an air circulation device for a gasoline-powered generator set and its circulation method. Summary of the Invention

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an air circulation device for a gasoline-powered generator set and its circulation method.

[0007] The present invention realizes the solution of its technical problems through the following technical solutions: It includes a bottom plate, a frame installed at one end of the bottom plate, a gasoline engine installed above the bottom plate, a generator body installed at the middle position of the frame, and a circulation mechanism arranged at one end of the gasoline engine for exhausting the exhaust gas generated by the operation of the gasoline engine. The circulation mechanism includes an exhaust pipe, a cylinder, a first spiral pipe, a second spiral pipe, an air filter, an air outlet pipe, a box body, a bellows, and a fan blade. The exhaust pipe is communicated with the cylinder. The inside of the cylinder is filled with heat-conducting oil. A spiral air passage is arranged at the middle position of the cylinder and is communicated with the air filter. The air outlet pipe leads the exhaust gas into the box body and the bellows. A plurality of air-permeable holes are evenly arranged on both sides of the bellows. The pitches of the first spiral pipe and the second spiral pipe are the same, and the starting angles of the threads of the first spiral pipe and the second spiral pipe are in the same vertical plane to ensure that the first spiral pipe and the second spiral pipe are in staggered spiral contact with the heat-conducting oil. It further includes a cleaning mechanism arranged above the gasoline engine for automatically cleaning the intake air filter of the gasoline generator set. The cleaning mechanism includes a rotating ring, a reciprocating lead screw, a driving block, a brush plate, and blades. The blades are semi-circular and are evenly installed on the outside of the rotating ring. The central axis of the connection between the air outlet pipe and the box body is in the same horizontal plane as the center of the circle of the blades for blowing the rotating ring to rotate. It further includes an adjustment mechanism arranged inside the rotating ring for adjusting the angles of the blades. The adjustment mechanism includes a driven bevel gear, a servo motor, a driving bevel gear, and an air flow sensor. The air flow sensor monitors the exhaust gas flow rate of the exhaust pipe. The driving bevel gear is engaged with a plurality of driven bevel gears.

[0008] As a further solution of the present invention: A shock-absorbing mechanism is arranged below the bottom plate for buffering the vibration during the operation of the gasoline-powered generator set. The shock-absorbing mechanism includes a plurality of shock-absorbing cylinders, which are fixed to the lower part of the bottom plate by bolts. A spiral spring is arranged outside the shock-absorbing cylinders. A base is arranged below the spiral spring. A plurality of locking universal wheels are arranged below the base.

[0009] As a further solution of the present invention: The exhaust pipe is fixed to the exhaust end of the gasoline engine by bolts. One side of the exhaust pipe is provided with a first branch pipe. The first spiral pipe is fixed to one end of the first branch pipe by bolts. One end of the first spiral pipe is provided with a connecting pipe, and the connecting pipe is communicated with the second spiral pipe to introduce the exhaust gas generated during the operation of the gasoline engine into the cylinder. The second spiral pipe is fixedly connected to one side of the cylinder to export the exhaust gas from the cylinder. The outlet pipe is fixed to one end of the second spiral pipe by bolts. One side of the outlet pipe is provided with a second branch pipe, and the other side of the outlet pipe is provided with a third branch pipe. The box body is fixed to one end of the second branch pipe by bolts, and the air box is fixed to one end of the third branch pipe by bolts. The starting angle of the first spiral pipe is 90°, the starting angle of the second spiral pipe is 270°, and the fan blade is a 45° inclined arc plate.

[0010] As a further solution of the present invention: The rotating ring is rotatably connected to the middle position of the box body. The reciprocating lead screw is fixedly connected to the middle position of the rotating ring. The driving block is in transmission connection with the outside of the reciprocating lead screw. The brush plate is fixed to the outer wall of the driving block by bolts. The driven bevel gear is rotatably connected to the middle position of the rotating ring. The blade is fixed above the driven bevel gear by bolts. The outlet pipe is installed at 7 / 8 of the middle height of the box body, and the center of the blade is located on the circumference with a radius of 3 / 4 of the box body.

[0011] As a further solution of the present invention: The servo motor is fixed to the middle position of the rotating ring by bolts. The driving bevel gear is fixed to the rotating end of the servo motor by bolts. The air flow sensor is fixed to one end of the exhaust pipe by bolts.

[0012] As a further solution of the present invention: The outer side of the first branch pipe is provided with a heat insulation cotton layer. Both sides of the driving block are provided with telescopic protective covers.

[0013] As a further solution of the present invention: Electric valves are provided at one ends of the exhaust pipe, the first branch pipe, the second branch pipe, and the third branch pipe.

[0014] As a further solution of the present invention: The outer side of the box body is provided with sliding rods, the driving block is slidably connected to the sliding rods, and a limiting frame is provided at the top of the base.

[0015] As a further solution of the present invention: A catalytic converter is provided at the bottom of the exhaust pipe, a muffler is provided at the top of the exhaust pipe, and a bent pipe is provided at the outlet end of the exhaust pipe.

[0016] A gasoline-powered generator set air circulation device and its circulation method, comprising: S1: First, transfer the gasoline-powered generator set through the locking universal wheels, and move the gasoline-powered generator set to the designated position; S2: Start the gasoline engine. The spiral air duct introduces fresh air into the cylinder. The gasoline engine drives the generator body to rotate and generate electricity. At the same time, the gasoline engine drives the fan blade to rotate. The rotation of the fan blade drives the air flow outside the gasoline engine and the generator body to dissipate heat from the gasoline-powered generator set. The catalytic converter catalyzes the exhaust gas of the gasoline-powered generator set, and the muffler reduces the noise of the exhaust of the gasoline-powered generator set. S3: Open Branch Pipe 1 to introduce the high-temperature exhaust gas of the gasoline-powered generator set into the cylinder. The heat-conducting oil uses the heat-conducting effect to conduct heat between the high-temperature exhaust gas and the fresh air, heating the intake air of the gasoline-powered generator set and cooling the exhaust gas of the gasoline-powered generator set at the same time. S4: When it is necessary to clean the air filter, open Branch Pipe 2. The cooled exhaust gas drives the reciprocating lead screw to rotate, driving the brush plate to move reciprocally to clean the air filter. S5: After the air filter is cleaned, close Branch Pipe 2 and open Branch Pipe 3. The cooled exhaust gas assists the fan blade to rotate, thereby driving the output shaft of the gasoline engine to rotate. The air flow sensor monitors the exhaust gas flow rate. S6: When the exhaust volume increases, start the servo motor to drive the blade to rotate and adjust the windward area of the blade. When a large amount of exhaust is required, open the exhaust pipe and close Branch Pipe 1 to directly discharge the exhaust gas of the gasoline-powered generator set.

[0017] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are: 1. The fresh air is introduced into the cylinder through the spiral air duct to contact the heat-conducting oil. The high-temperature exhaust gas of the gasoline-powered generator set is introduced into the cylinder through Spiral Pipe 1 and Spiral Pipe 2. Under the heat-conducting effect of the heat-conducting oil, the high-temperature exhaust gas and the fresh air conduct heat, reducing the temperature of the exhaust gas of the gasoline-powered generator set and increasing the intake air temperature of the gasoline-powered generator set at the same time, making use of the heat of the exhaust gas and improving the power generation efficiency of the gasoline-powered generator set. 2. The cooled exhaust gas can drive the reciprocating lead screw to rotate, driving the brush plate to move reciprocally to clean the air filter, ensuring the smoothness of the intake air of the gasoline-powered generator set. 3. The air flow sensor monitors the exhaust gas flow rate. During the gap of cleaning the air filter, the cooled exhaust gas can assist the fan blade to rotate, thereby driving the output shaft of the gasoline engine to rotate, making use of the exhaust gas of the gasoline-powered generator set and reducing the gasoline consumption of the gasoline-powered generator set. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shows an isometric structural schematic diagram provided according to an embodiment of the present invention; Figure 2 Shows a front view cross-sectional structural schematic diagram provided according to an embodiment of the present invention; Figure 3 Shows a schematic side cross-sectional structure provided according to an embodiment of the present invention; Figure 4 Shows a schematic diagram of a partial structure provided according to an embodiment of the present invention; Figure 5 Shows a schematic assembly structure provided according to an embodiment of the present invention; Figure 6 Shows the one provided according to an embodiment of the present invention Figure 5 Schematic side view structure; Figure 7 Shows the one provided according to an embodiment of the present invention Figure 6 Schematic diagram of the enlarged partial structure at A; Figure 8 Shows the one provided according to an embodiment of the present invention Figure 5 Schematic diagram of the enlarged partial structure at B; Figure 9 Shows the one provided according to an embodiment of the present invention Figure 5 Schematic diagram of the enlarged partial structure at C; Figure 10 Shows a schematic diagram of the mating relationship provided according to an embodiment of the present invention.

[0019] Legend description: 100, bottom plate; 200, frame; 300, gasoline engine; 400, generator body; 500, heat insulation cotton layer; 600, telescopic protective cover; 700, electric valve; 101, exhaust pipe; 102, branch pipe one; 103, cylinder; 104, intake pipe; 105, air filter; 106, outlet pipe; 107, branch pipe two; 108, branch pipe three; 109, box body; 111, spiral pipe one; 112, spiral pipe two; 113, connecting pipe; 110, heat transfer oil; 120, spiral air duct; 201, rotating ring; 202, reciprocating lead screw; 203, driving block; 204, brush plate; 205, driven bevel gear; 206, blade; 207, servo motor; 208, driving bevel gear; 209, air flow sensor; 210, slide bar; 220, catalytic converter; 230, muffler; 240, elbow pipe; 301, fan blade; 302, air box; 303, ventilation hole; 501, shock absorber cylinder; 502, spiral spring; 503, base; 504, locking universal wheel; 510, limiting frame. Detailed implementation manners

[0020] In the following text, only some exemplary embodiments are simply described. As those skilled in the art will recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the accompanying drawings and description are to be regarded as illustrative in nature and not restrictive.

[0021] In the present invention, unless otherwise clearly specified and defined, the first feature being “on” or “under” the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being “above”, “over” and “on top of” the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being “under”, “beneath” and “underneath” the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0022] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] Embodiment 1: This design mainly improves the 7.5KW and 8.5KW gasoline generators, which can provide more stable power for families and light industries and can support most daily needs.

[0024] As Figure 1-10As shown in the figure, a gasoline-powered generator set air circulation device and its circulation method include a bottom plate 100, a frame 200 installed at one end of the bottom plate 100, a gasoline engine 300 installed above the bottom plate 100, a generator body 400 installed at the middle position of the frame 200, and a circulation mechanism arranged at one end of the gasoline engine 300 for exhausting the exhaust gas generated by the operation of the gasoline engine 300. The circulation mechanism includes an exhaust pipe 101, a cylinder 103, a first spiral pipe 111, a second spiral pipe 112, an air filter 105, an air outlet pipe 106, a box body 109, a bellows 302, and a fan blade 301. The exhaust pipe 101 is communicated with the cylinder 103. A heat insulation cotton layer 500 is pasted on the outer side of the first branch pipe 102, and the heat insulation cotton layer 500 reduces the heat dissipation of the first branch pipe 102. The inside of the cylinder 103 is filled with heat-conducting oil 110. The heat-conducting oil 110 absorbs the heat of the exhaust gas of the gasoline engine and simultaneously heats the air inside the spiral air duct 120. A spiral air duct 120 is cut at the middle position of the cylinder 103, and the spiral air duct 120 is communicated with the air filter 105. The air filter 105 filters the intake air entering the gasoline engine. The air outlet pipe 106 leads the exhaust gas into the box body 109 and the bellows 302. A plurality of air-permeable holes 303 are evenly cut on both sides of the bellows 302. The rotation of the fan blade 301 drives the air flow outside the gasoline engine 300 and the generator body 400 to dissipate heat from the gasoline-powered generator set. The air outlet pipe 106 is installed at 7 / 8 of the middle height of the box body 109. The radius of the box body 109 is R, and the height of the box body 109 is L. The pitches of the first spiral pipe 111 and the second spiral pipe 112 are the same, ensuring that one end of the first spiral pipe 111 and the second spiral pipe 122 is at the same height. The starting angle of the first spiral pipe 111 is 90°, and the starting angle of the second spiral pipe 112 is 270°. At this time, the first spiral pipe 111, the second spiral pipe 122 and the heat-conducting oil 110 are in an alternating spiral contact, and the heat transfer efficiency is relatively high. The fan blade 301 is a 45° inclined rectangular plate, and the 45° rectangular plate ensures equal cutting of the air, so as to ensure the same air flow velocity on both sides of the generator body 400 and the gasoline engine 300. The exhaust pipe 101 is fixed to the exhaust end of the gasoline engine 300 by bolts. A first branch pipe 102 is fixed to one side of the exhaust pipe 101 by bolts. The first spiral pipe 111 is fixed to one end of the first branch pipe 102 by bolts. A connecting pipe 113 is fixed to one end of the first spiral pipe 111 by bolts. The connecting pipe 113 is communicated with the second spiral pipe 112 to introduce the exhaust gas generated by the operation of the gasoline engine 300 into the cylinder 103. The second spiral pipe 112 is fixedly connected to one side of the cylinder 103 to lead the exhaust gas out of the cylinder 103. The air outlet pipe 106 is fixed to one end of the second spiral pipe 112 by bolts. A second branch pipe 107 is welded to one side of the air outlet pipe 106, and a third branch pipe 108 is welded to the other side of the air outlet pipe 106. The box body 109 is fixed to one end of the second branch pipe 107 by bolts.The bellows 302 is fixed to one end of the third branch pipe 108 by bolts. Electric valves 700 are fixed to one ends of the exhaust pipe 101, the first branch pipe 102, the second branch pipe 107, and the third branch pipe 108 by bolts. The electric valves 700 can separately control the opening or closing of the exhaust pipe 101, the first branch pipe 102, the second branch pipe 107, and the third branch pipe 108.

[0025] It further includes a cleaning mechanism arranged above the gasoline engine 300 for automatically cleaning the air intake filter of the gasoline generator. The cleaning mechanism includes a rotating ring 201, a reciprocating lead screw 202, a driving block 203, a brush plate 204, and blades 206. Telescopic protective covers 600 are fixed to both sides of the driving block 203 by bolts. The telescopic protective covers 600 prevent dust and sundries from entering the gap between the reciprocating lead screw 202 and the driving block 203 to protect the reciprocating lead screw 202. The blades 206 are semi-circular and evenly installed on the outer side of the rotating ring 201. The center of the blades 206 is located on the circumference at 3 / 4 of the radius of the box body 109. At this time, the airflow of the air outlet pipe 106 is directly opposite the center of the blades 206, and the torsional moment on the rotating ring 201 is the largest. The rotating ring 201 is rotatably connected to the middle position of the box body 109. The reciprocating lead screw 202 is fixedly connected to the middle position of the rotating ring 201. The driving block 203 is in transmission connection with the outer side of the reciprocating lead screw 202. The brush plate 204 is fixed to the outer wall of the driving block 203 by bolts. The driven bevel gear 205 is rotatably connected to the middle position of the rotating ring 201. The blades 206 are fixed to the upper side of the driven bevel gear 205 by bolts. The driven bevel gear 205 drives the blades 206 to rotate and adjust the angle.

[0026] It further includes an adjustment mechanism arranged inside the rotating ring 201 for adjusting the angle of the blades 206. The adjustment mechanism includes a driven bevel gear 205, a servo motor 207, a driving bevel gear 208, and an airflow sensor 209. The airflow sensor 209 monitors the exhaust gas flow of the exhaust pipe. The driving bevel gear 208 meshes with multiple driven bevel gears 205, and the driving bevel gear 208 drives the multiple driven bevel gears 205 to rotate synchronously. The servo motor 207 is fixed to the middle position of the rotating ring 201 by bolts. The driving bevel gear 208 is fixed to the rotating end of the servo motor 207 by bolts. The airflow sensor 209 is fixed to one end of the exhaust pipe 101 by bolts.

[0027] In this embodiment, fresh air is introduced into the cylinder 103 through the spiral air duct 120 to contact the heat-conducting oil 110. The high-temperature exhaust gas of the gasoline-powered generator set is introduced into the interior of the cylinder 103 through the first spiral pipe 111 and the second spiral pipe 112. Under the heat-conducting effect of the heat-conducting oil 110, heat conduction occurs between the high-temperature exhaust gas and the fresh air, reducing the temperature of the exhaust gas of the gasoline-powered generator set and at the same time increasing the intake air temperature of the gasoline-powered generator set, making use of the heat of the exhaust gas and improving the power generation efficiency of the gasoline-powered generator set. The cooled exhaust gas can drive the reciprocating lead screw 202 to rotate, driving the brush plate 204 to reciprocate and clean the air filter 105, ensuring the smooth intake of the gasoline-powered generator set. At the same time, the air flow sensor 209 monitors the exhaust gas flow rate, clearing the gap of the air filter 105. The cooled exhaust gas can assist the fan blade 301 to rotate, thereby driving the output shaft of the gasoline engine 300 to rotate, making use of the exhaust gas of the gasoline-powered generator set and reducing the gasoline consumption of the gasoline-powered generator set.

[0028] When this embodiment is in use, first start the gasoline engine 300. The gasoline engine 300 drives the generator body 400 to rotate and generate electricity. At the same time, the gasoline engine 300 drives the fan blade 301 to rotate. The rotation of the fan blade 301 drives the air flow outside the gasoline engine 300 and the generator body 400 to dissipate heat from the gasoline-powered generator set. The spiral air duct 120 introduces fresh air into the cylinder 103. Open the first branch pipe 102 to introduce the high-temperature exhaust gas of the gasoline-powered generator set into the interior of the cylinder 103. The heat-conducting oil 110 uses its heat-conducting effect to conduct heat between the high-temperature exhaust gas and the fresh air. When it is necessary to clean the air filter 105, open the second branch pipe 107. The cooled exhaust gas drives the reciprocating lead screw 202 to rotate, driving the brush plate 204 to reciprocate and clean the air filter 105. After the air filter 105 is cleaned, close the second branch pipe 107 and open the third branch pipe 108. The cooled exhaust gas assists the fan blade 301 to rotate, thereby driving the output shaft of the gasoline engine 300 to rotate. The air flow sensor 209 monitors the exhaust gas flow rate. When the exhaust gas volume increases, start the servo motor 207 to drive the blade 206 to rotate by an angle to adjust the windward area of the blade 206. When a large amount of exhaust gas is required, open the exhaust pipe 101 and close the first branch pipe 102 to directly discharge the exhaust gas of the gasoline-powered generator set.

[0029] Embodiment 2: As Figure 3-8As shown in the figure, an air circulation device for a gasoline-powered generator set and its circulation method. A shock-absorbing mechanism is provided below the bottom plate 100 to buffer the vibration during the operation of the gasoline-powered generator set. The shock-absorbing mechanism includes a plurality of shock-absorbing cylinders 501, which are fixed to the bottom of the bottom plate 100 by bolts. A helical spring 502 is fixed to the outside of the shock-absorbing cylinder 501 by bolts. The helical spring 502 absorbs the vibration during the operation of the gasoline-powered generator set. The hydraulic fluid inside the shock-absorbing cylinder 501 realizes energy conversion and absorption through friction and flow, suppressing the jumping of the helical spring 502. A base 503 is fixed to the bottom of the helical spring 502 by bolts. A plurality of locking universal wheels 504 are fixed to the bottom of the base 503 by bolts, and the gasoline-powered generator set is transferred by the locking universal wheels 504. A sliding rod 210 is fixed to the outside of the box body 109 by bolts. The driving block 203 is slidably connected to the sliding rod 210, and the sliding rod 210 controls the moving track of the driving block 203. A limiting frame 510 is fixed to the top of the base 503 by bolts, and the limiting frame 510 limits the base 503. A catalytic converter 220 is fixed to the bottom of the exhaust pipe 101 by bolts. The catalytic converter 220 catalyzes the exhaust gas of the gasoline-powered generator set, reducing the harmful gas emissions of the exhaust gas of the gasoline-powered generator set. A muffler 230 is fixed to the top of the exhaust pipe 101 by bolts. The muffler 230 reduces the noise of the exhaust of the gasoline-powered generator set. A bent pipe 240 is fixed to the outlet end of the exhaust pipe 101 by bolts, and the bent pipe 240 prevents rainwater from entering the exhaust pipe 101.

[0030] In this embodiment, the gasoline-powered generator set is transferred by the locking universal wheels 504. The helical spring 502 absorbs the vibration during the operation of the gasoline-powered generator set. The hydraulic fluid inside the shock-absorbing cylinder 501 realizes energy conversion and absorption through friction and flow, suppressing the jumping of the helical spring 502, ensuring the stability of the power generation process of the gasoline-powered generator set. The exhaust gas of the gasoline-powered generator set is catalyzed by the catalytic converter 220, reducing the harmful gas emissions of the exhaust gas of the gasoline-powered generator set.

[0031] When this embodiment is in use, when it is necessary to move the gasoline-powered generator set, under the support of the locking universal wheels 504, the gasoline-powered generator set is moved. While the gasoline-powered generator set is generating electricity, the catalytic converter 220 catalyzes the exhaust gas of the gasoline-powered generator set, reducing the harmful gas emissions of the exhaust gas of the gasoline-powered generator set. The muffler 230 reduces the noise of the exhaust of the gasoline-powered generator set.

[0032] An air circulation device for a gasoline-powered generator set and its circulation method, including: S1: First, transfer the gasoline-powered generator set through the locking universal wheel 504 and move the gasoline-powered generator set to the designated position; S2: Start the gasoline engine 300. The spiral air duct 120 introduces fresh air into the cylinder 103. The gasoline engine 300 drives the generator body 400 to rotate and generate electricity. At the same time, the gasoline engine 300 drives the fan blade 301 to rotate. The rotation of the fan blade 301 drives the air flow outside the gasoline engine 300 and the generator body 400 to dissipate heat from the gasoline-powered generator set. The catalytic converter 220 catalyzes the exhaust gas of the gasoline-powered generator set, and the muffler 230 reduces the noise of the exhaust of the gasoline-powered generator set; S3: Open the first branch pipe 102 to introduce the high-temperature exhaust gas of the gasoline-powered generator set into the interior of the cylinder 103. The heat-conducting oil 110 uses heat conduction to conduct heat between the high-temperature exhaust gas and the fresh air, heating the intake air of the gasoline-powered generator set and cooling the exhaust gas of the gasoline-powered generator set at the same time; S4: When it is necessary to clean the air filter 105, open the second branch pipe 107. The cooled exhaust gas drives the reciprocating lead screw 202 to rotate, driving the brush plate 204 to reciprocate to clean the air filter 105; S5: After the air filter 105 is cleaned, close the second branch pipe 107 and open the third branch pipe 108. The cooled exhaust gas assists the fan blade 301 to rotate, thereby driving the output shaft of the gasoline engine 300 to rotate. The air flow sensor 209 monitors the exhaust gas flow; S6: When the exhaust volume increases, start the servo motor 207 to drive the blade 206 to rotate and adjust the windward area of the blade 206. When a large amount of exhaust is required, open the exhaust pipe 101 and close the first branch pipe 102 to directly discharge the exhaust gas of the gasoline-powered generator set.

[0033] As described above, only the preferred specific embodiments of the present invention are provided, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. An air circulation device for a gasoline-powered generator set, characterized in that, It includes a bottom plate (100), a frame (200) installed at one end of the bottom plate (100), a gasoline engine (300) installed above the bottom plate (100), a generator body (400) installed at the middle position of the frame (200), and a circulation mechanism arranged at one end of the gasoline engine (300) for exhausting the exhaust gas generated by the operation of the gasoline engine (300). The circulation mechanism includes an exhaust pipe (101), a cylinder (103), a first spiral pipe (111), a second spiral pipe (112), an air filter (105), an air outlet pipe (106), a box body (109), a bellows (302), and a fan blade (301). The exhaust pipe (101) is communicated with the cylinder (103). The inside of the cylinder (103) is filled with heat-conducting oil (110). A spiral air passage (120) is arranged at the middle position of the cylinder (103), and the spiral air passage (120) is communicated with the air filter (105). The air outlet pipe (106) leads the exhaust gas into the box body (109) and the bellows (302). A plurality of air-permeable holes (303) are evenly arranged on both sides of the bellows (302). The pitches of the first spiral pipe (111) and the second spiral pipe (112) are the same, and the starting angles of the threads of the first spiral pipe (111) and the second spiral pipe (112) are in the same vertical plane to ensure that the first spiral pipe (111), the second spiral pipe (122) are in staggered spiral contact with the heat-conducting oil (110). It further includes a cleaning mechanism arranged above the gasoline engine (300) for automatically cleaning the intake air filter of the gasoline generator. The cleaning mechanism includes a rotating ring (201), a reciprocating lead screw (202), a driving block (203), a brush plate (204), and a blade (206). The blade (206) is semicircular and evenly installed on the outer side of the rotating ring (201). The central axis of the connection between the air outlet pipe (106) and the box body (109) is in the same horizontal plane as the center of the blade (206) to blow the rotating ring (201) to rotate. It further includes an adjustment mechanism arranged inside the rotating ring (201) for adjusting the angle of the blade (206). The adjustment mechanism includes a driven bevel gear (205), a servo motor (207), a driving bevel gear (208), and an air flow sensor (209). The air flow sensor (209) monitors the exhaust gas flow of the exhaust pipe. The driving bevel gear (208) is meshed with a plurality of driven bevel gears (205).

2. The air circulation device of a gasoline-powered generator set according to claim 1, wherein A shock-absorbing mechanism is arranged below the bottom plate (100) for buffering the vibration during the operation of the gasoline-powered generator set. The shock-absorbing mechanism includes a plurality of shock-absorbing cylinders (501). The shock-absorbing cylinders (501) are fixed to the lower part of the bottom plate (100) by bolts. A spiral spring (502) is arranged on the outer side of the shock-absorbing cylinder (501). A base (503) is arranged below the spiral spring (502). A plurality of locking universal wheels (504) are arranged below the base (503).

3. The air circulation device for a gasoline-powered generator set according to claim 2, wherein, The exhaust cylinder (101) is fixed to the exhaust end of the gasoline engine (300) by bolts. A branch pipe (102) is provided on one side of the exhaust cylinder (101). The spiral pipe (111) is fixed to one end of the branch pipe (102) by bolts. A connecting pipe (113) is provided on one end of the spiral pipe (111). The connecting pipe (113) is connected to the spiral pipe (112) to guide the exhaust gas of the gasoline engine (300) into the cylinder (103). The spiral pipe (112) is fixedly connected to one side of the cylinder (103) to guide the exhaust gas out of the cylinder (103). The air outlet pipe (106) is fixed to one end of the spiral pipe 2 (112) by bolts, a branch pipe 2 (107) is provided on one side of the air outlet pipe (106), and a branch pipe 3 (108) is provided on the other side of the air outlet pipe (106), the box body (109) is fixed to one end of the branch pipe 2 (107) by bolts, and the bellows (302) is fixed to one end of the branch pipe 3 (108) by bolts, the starting angle of the spiral pipe 1 (111) is 90°, the starting angle of the spiral pipe 2 (112) is 270°, and the fan blade (301) is a 45° inclined arc plate.

4. The air circulation device for a gasoline-powered generator set according to claim 3, wherein, The rotating ring (201) is rotatably connected to the middle position of the box body (109), the reciprocating screw (202) is fixedly connected to the middle position of the rotating ring (201), the driving block (203) is transmission-connected to the outer side of the reciprocating screw (202), the brush plate (204) is fixed to the outer wall of the driving block (203) by bolts, the driven bevel gear (205) is rotatably connected to the middle position of the rotating ring (201), the blade (206) is fixed above the driven bevel gear (205) by bolts, the outlet pipe (106) is installed at 7 / 8 of the middle height of the box body (109), and the center of the blade (206) is located on the circumference of 3 / 4 of the radius of the box body (109).

5. The air circulation device of a gasoline-powered generator set according to claim 4, characterized in that, The servo motor (207) is fixed to the middle position of the rotating ring (201) by bolts, the driving bevel gear (208) is fixed to the rotating end of the servo motor (207) by bolts, and the airflow sensor (209) is fixed to one end of the exhaust pipe (101) by bolts.

6. The air circulation device of a gasoline-powered generator set according to claim 5, characterized in that, A heat-insulating cotton layer (500) is provided on the outer side of the branch pipe 1 (102), and telescopic protective covers (600) are provided on both sides of the driving block (203).

7. The air circulation device for a gasoline-powered generator set according to claim 6, characterized in that, One end of the exhaust pipe (101), branch pipe one (102), branch pipe two (107), and branch pipe three (108) is provided with an electric valve (700).

8. The air circulation device for a gasoline-powered generator set according to claim 7, characterized in that, A sliding rod (210) is provided on the outer side of the box body (109), the driving block (203) is slidably connected to the sliding rod (210), and a limiting frame (510) is provided on the top of the base (503).

9. The air circulation device for a gasoline-powered generator set according to claim 8, wherein A catalyst (220) is provided at the bottom of the exhaust pipe (101), a muffler (230) is provided at the top of the exhaust pipe (101), and a curved pipe (240) is provided at the air outlet end of the exhaust pipe (101).

10. A method for air circulation of a gasoline-powered generator set, applied to an air circulation device of a gasoline-powered generator set as described in claim 9, characterized in that, include: S1: First, transfer the gasoline-powered generator set through the locking universal wheels (504) and move the gasoline-powered generator set to the designated position; S2: Start the gasoline engine (300). The spiral air duct (120) introduces fresh air into the cylinder (103). The gasoline engine (300) drives the generator body (400) to rotate and generate electricity. At the same time, the gasoline engine (300) drives the fan blade (301) to rotate. The rotation of the fan blade (301) drives the air flow outside the gasoline engine (300) and the generator body (400) to dissipate heat from the gasoline-powered generator set. The catalytic converter (220) catalyzes the exhaust gas of the gasoline-powered generator set, and the muffler (230) reduces the noise of the exhaust of the gasoline-powered generator set; S3: Open the first branch pipe (102) and introduce the high-temperature exhaust gas of the gasoline-powered generator set into the interior of the cylinder (103). The heat-conducting oil (110) uses the heat-conducting effect to conduct heat between the high-temperature exhaust gas and the fresh air, heating the intake air of the gasoline-powered generator set and cooling the exhaust gas of the gasoline-powered generator set at the same time; S4: When it is necessary to clean the air filter (105), open the second branch pipe (107). The cooled exhaust gas drives the reciprocating lead screw (202) to rotate, driving the brush plate (204) to reciprocate and clean the air filter (105); S5: After the air filter (105) is cleaned, close the second branch pipe (107) and open the third branch pipe (108). The cooled exhaust gas assists the fan blade (301) to rotate, thereby driving the output shaft of the gasoline engine (300) to rotate. The air flow sensor (209) monitors the exhaust gas flow; S6: When the exhaust volume increases, start the servo motor (207) to drive the blade (206) to rotate and adjust the windward area of the blade (206). When a large amount of exhaust is required, open the exhaust pipe (101) and close the first branch pipe (102) to directly exhaust the exhaust gas of the gasoline-powered generator set.

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