Protective device for generator set

Abstract

The invention discloses a protective device for a generator set, and relates to the technical field of generator set protection, the protective device comprises a casing and a generator set assembled in the casing, the bottom of the casing is open and is provided with a protective bottom plate, and the front end opening and the rear end opening of the casing are respectively provided with an air inlet cover and an air outlet cover; a bottom air opening is further formed in the position, close to the front end opening, of the protection bottom plate, a dustproof net plate is installed in the bottom air opening, and a blocking frame connected to the inner wall of the machine shell in a sealed mode is further installed at the position, overlapped with the dustproof net plate, of the bottom air opening. The sand discharging plate is arranged on the bottom of the movable plate and can do circular motion along the arc edge of the bottom of the movable plate, when dust is transited to the arc edge of the bottom of the sand discharging plate, the dust can fall down, a metal wire mesh is further installed between the sand discharging plate and the movable plate, the air inlet channel is blocked by the metal wire mesh, and the dust can be further filtered and removed.

Description

Technical Field

[0001] The present invention relates to the technical field of generator set protection, and more specifically, to a protection device for a generator set. Background Art

[0002] A diesel generator set is a small power generation device, which refers to a power machinery that uses diesel and other fuels and uses a diesel engine as a prime mover to drive a generator to generate electricity. The whole set of units generally consists of a diesel engine, a generator, a control box, a fuel tank, a starting and control storage battery, a protection device, an emergency cabinet and other components. The whole can be fixed on the foundation for positioning use, or can be installed on a trailer for mobile use.

[0003] Referring to the Chinese patent case with the authorized announcement number CN114087066B, a chassis of a diesel generator set and a diesel generator set are disclosed. The chassis includes a bottom plate, a motor mounting assembly and an air inlet assembly; the air inlet assembly includes a first air inlet, a second air inlet, a first protective cover and a wind guide cover. The first air inlet is located on the bottom plate, and the first air inlet is used for air intake into the interior of the diesel generator set in the vertical direction. The first protective cover is arranged opposite to the first air inlet, and the first protective cover extends in the vertical direction. The height of the first protective cover in the vertical direction corresponds to the height of the engine or the generator of the diesel generator set. Different from the prior art, the first protective cover of the present invention plays a role in guiding air, and at the same time, since the first protective cover is provided with a certain height, it can block the sand and dust coming in from the air inlet. After the sand and dust reach a certain height, the sand and dust do not have enough kinetic energy, so they are isolated outside the generator. In this solution, mainly rely on the first protective cover to block the incoming sand and dust. In actual use, it is necessary to keep the air flow circulating inside the casing for heat dissipation. The sand and dust will pass through the periphery of the first protective cover along with the air flow and enter the casing and impact on the generator set. After long-term use, the attached dust will gradually increase, affecting heat dissipation and reducing the service life of the generator set.

[0004] Based on the above problems, we provide a protection device for a generator set. Summary of the Invention

[0005] In order to solve the problems raised in the above background art, the present invention provides a protection device for a generator set.

[0006] The protection device for a generator set provided by the present invention adopts the following technical solutions:

[0007] A protection device for a generator set includes: a casing and a generator set assembled inside the casing. The bottom of the casing is open and is provided with a protection bottom plate:

[0008] An air inlet hood and an air outlet hood are respectively installed at the front end opening and the rear end opening of the casing;

[0009] A bottom air outlet is also provided at a position of the protective bottom plate close to the front end opening. A dust-proof net plate is installed in the bottom air outlet. A retaining frame hermetically connected to the inner wall of the casing is also installed at a position overlapping with the dust-proof net plate. An inner protective net is installed in the retaining frame. A retaining cover is installed at the bottom of the inner protective net, and the retaining cover is buckled on the dust-proof net plate;

[0010] A sand falling plate and a movable plate are also provided at a position of the inner protective net close to the front end opening of the casing. An air inlet channel is left between the movable plate and the sand falling plate. A wire mesh is arranged in the air inlet channel;

[0011] Wherein, arc edges for guiding sand and dust to move in a circular motion are arranged at the bottoms of the sand falling plate and the movable plate.

[0012] Preferably, two mounting bars are also installed on the side edge of the retaining frame. A plurality of guide rods are vertically installed between the two mounting bars. The movable plate is slidably installed on the plurality of guide rods. A plurality of spring members are also connected between the movable plate and the upper mounting bar, and the spring members are sleeved on the guide rods.

[0013] Preferably, clamping plates (A) are also installed on the side surfaces of the sand falling plate and the movable plate. The clamping plates (A) are fixed by screws and fix the wire mesh on the sand falling plate or the movable plate.

[0014] Preferably, four sprockets are also installed on the side surface of the retaining frame close to the front end opening of the casing. The four sprockets are arranged in a rectangle. A chain is also drivingly installed between the upper and lower two sprockets on the same side. A telescopic sleeve is rotatably installed on one tooth of the chain. A support plate is slidably sleeved in the telescopic sleeve. A cleaning plate is installed between the two support plates. A cleaning brush is also arranged on the side surface of the cleaning plate facing the inner protective net.

[0015] Preferably, two synchronous motors are installed on the inner wall of the casing. The two synchronous motors are controlled by the same single-chip microcomputer. The output shafts of the two synchronous motors are respectively connected to the central shafts of the upper two sprockets. A bearing seat is also sleeved on the central shaft of the sprocket, and the bearing seat is fixed in the casing.

[0016] Preferably, a plurality of ventilation mesh holes are formed on the back surface of the air inlet hood. A plurality of reinforcing plates for forming a circular space are connected to the inner wall of the air inlet hood. A powerful cooling fan is installed in the circular space.

[0017] Preferably, a plurality of heat dissipation fin plates are arranged side by side along the air flow direction on the inner walls on both sides of the casing. An air box is installed on the inner wall of the top of the casing. A plurality of flow guiding plates are arranged side by side on the inner wall of the top of the air box. A plurality of arc-shaped plates are also installed in the air box below the flow guiding plates, and the arc-shaped plates guide the air flow to blow towards the generating set.

[0018] In summary, the present invention includes the following beneficial technical effects:

[0019] 1. In the present application, a sealing-connected retaining frame is overlapped above the dust-proof net plate. An inner protection net and a retaining cover are installed in the retaining frame, which can fully filter sand and dust. Moreover, arc edges are provided at the bottoms of the lower sand plate and the movable plate. When dust flows in along the incoming air flow, it will move in a circular motion along the arc edge at the bottom of the movable plate. When the dust reaches the arc edge at the bottom of the lower sand plate, it will fall downward. Additionally, a wire mesh is installed between the lower sand plate and the movable plate, and the wire mesh seals the incoming air passage, which can further filter and remove dust.

[0020] 2. In the present application, a cleaning plate is also installed on the retaining frame, and a cleaning brush is provided on the cleaning plate. With the cooperation of the sprocket and chain, it can push the telescopic sleeve to move up and down. The support plate inside the telescopic sleeve will drive the cleaning plate to continuously slide up and down, thereby cleaning the dust adhering to the inner protection net and preventing it from affecting the air flow and the heat dissipation effect of the generator set.

[0021] 3. In the present application, an air box is also installed in the housing, and a guide plate for guiding the air flow is installed in the air box. Moreover, when the air flow passes between the guide plates, it will also be affected by the arc-shaped panel below, and thus directly blows towards the generator set, facilitating the heat dissipation of the generator set. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the longitudinal section of the housing of the present invention;

[0023] Figure 2 is a schematic diagram of the internal structure of the housing of the present invention;

[0024] Figure 3 is a schematic diagram of the dust-proof net plate and the corresponding structure of the present invention;

[0025] Figure 4 is a schematic diagram of the inner protection net and the corresponding structure of the present invention;

[0026] Figure 5 is a schematic diagram of the corresponding structure of the lower sand plate and the movable plate of the present invention;

[0027] Figure 6 is a schematic diagram of the internal structure of the air box of the present invention;

[0028] Figure 7 is a schematic diagram of the internal structure of the air inlet cover of the present invention;

[0029] Figure 8 is the present invention Figure 4 schematic diagram of the structure of part A in;

[0030] Figure 9 is the present invention Figure 5Schematic diagram of part B in it.

[0031] Description of reference numerals in the drawings: 1. Machine shell; 101. Heat dissipation fin plate; 102. Air box; 103. Deflector; 104. Arc panel; 11. Air inlet hood; 1102. Reinforcing plate; 1103. High-power cooling fan; 1104. Ventilation mesh hole; 12. Air outlet hood; 13. Protective bottom plate; 1301. Bottom air inlet; 1302. Dust-proof mesh plate; 1303. Baffle; 1304. Baffle frame; 1305. Inner protective net; 1306. Lower sand plate; 1307. Movable plate; 1308. Wire mesh; 1308A. Clamping plate; 1309. Guide rod; 1310. Spring member; 1311. Sprocket; 1312. Chain; 1313. Telescopic sleeve; 1314. Support plate; 1315. Cleaning plate; 1316. Cleaning brush; 1317. Synchronous motor; 2. Generator set. Detailed implementation manners

[0032] The following further Figures 1 to 9 describes the present invention in detail with reference to the attached drawings.

[0033] It should be noted that the drawings are schematic and not drawn to scale. For the sake of clarity and convenience in the figures, the relative sizes and proportions of the parts shown in the figures are exaggerated or reduced in size for illustration, and any dimensions are merely exemplary and not limiting. In addition, the same structural elements, components or fittings that appear in more than two figures are denoted by the same reference numerals to represent similar features.

[0034] Embodiment 1

[0035] Refer to Figures 1 to 9As shown in the figure, the present invention discloses a protection device for a generator set, which includes a machine shell 1 and a generator set 2 assembled inside the machine shell 1. The bottom of the machine shell 1 is open and is installed with a protection bottom plate 13: an air inlet hood 11 and an air outlet hood 12 are respectively installed at the front opening and the rear opening of the machine shell 1. A plurality of ventilation mesh holes 1104 are formed on the back surface of the air inlet hood 11, and a plurality of reinforcing plates 1102 for forming a circular space are connected to the inner wall of the air inlet hood 11. A powerful cooling fan 1103 is installed in this circular space. In order to facilitate the heat dissipation of the generator set 2 in the machine shell 1 and extend the service life of the generator set 2, a powerful cooling fan 1103 is installed in the air inlet hood 11, and reinforcing plates 1102 spliced into a circular space are installed on the inner wall of the air inlet hood 11, which can ensure the structural strength of the air inlet hood 11 and reduce the vibration of the air inlet hood 11. In addition, in order to enhance the heat dissipation effect of the generator set 2, a plurality of heat dissipation fins 101 are installed side by side along the air flow direction on the inner walls on both sides of the machine shell 1, and an air box 102 is installed on the inner wall at the top of the machine shell 1. A plurality of flow guiding plates 103 are installed side by side on the inner wall at the top of the air box 102. A plurality of arc-shaped plates 104 are also installed in the air box 102 below the flow guiding plates 103. The arc-shaped plates 104 guide the air flow to blow towards the generator set 2. The flow guiding plates 103 in the air box 102 can guide the air flow, and when the air flow passes between the flow guiding plates 103, it will also be affected by the arc-shaped plates 104 below, so as to directly blow towards the generator set, facilitating the heat dissipation of the generator set and enhancing the heat dissipation effect.

[0036] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown in the figure, a bottom air inlet 1301 is further provided at a position of the protection bottom plate 13 close to the front opening. A dust-proof net plate 1302 is installed in the bottom air inlet 1301. A retaining frame 1304 sealed and connected to the inner wall of the machine shell 1 is also installed at a position overlapping with the dust-proof net plate 1302. An inner protection net 1305 is installed in the retaining frame 1304, and a retaining cover 1303 is installed at the bottom of the inner protection net 1305. The retaining cover 1303 is buckled on the dust-proof net plate 1302. By installing the dust-proof net plate 1302 in the bottom air inlet 1301, particulate dust can be effectively intercepted, preventing large particulate dust from entering the machine shell 1 and causing damage. The retaining cover 1303 buckled above the dust-proof net plate 1302 can block the entering dust, reduce the kinetic energy of the dust, and intercept most of the dust below. The side-sealed retaining frame 1304 can provide effective protection to prevent dust from directly hitting the generator set 2;

[0037] Refer to Figure 3 、 Figure 4 、 Figure 5 、 Figure 9As shown, a sand falling plate 1306 and a movable plate 1307 are further provided at the position near the front end opening of the casing 1 of the inner protection net 1305. An air inlet passage is provided between the movable plate 1307 and the sand falling plate 1306, and a wire mesh 1308 is arranged in the air inlet passage. Clamping plates 1308A are also installed on the sides of the sand falling plate 1306 and the movable plate 1307. The clamping plates 1308A are fixed by screws and fix the wire mesh 1308 on the sand falling plate 1306 or the movable plate 1307. Two mounting bars are installed on the side edge of the retaining frame 1304, and a plurality of guiding rods 1309 are vertically installed between the two mounting bars. The movable plate 1307 is slidably installed on the plurality of guiding rods 1309, and a plurality of spring members 1310 are also connected between the movable plate 1307 and the upper mounting bar, and the spring members 1310 are sleeved on the guiding rods 1309. Among them, arc edges for guiding the sand and dust to move in a circular motion are provided at the bottoms of the sand falling plate 1306 and the movable plate 1307. Further, in order to effectively intercept dust, arc edges are provided at the bottoms of the sand falling plate 1306 and the movable plate 1307. When the dust flows in along the incoming air flow, it will move in a circular motion along the arc edge at the bottom of the movable plate 1307. When the dust reaches the arc edge at the bottom of the sand falling plate 1306, it will fall downward. Moreover, a wire mesh 1308 is installed between the sand falling plate 1306 and the movable plate 1307. The wire mesh 1308 blocks the air inlet passage and can further filter and remove the dust. Moreover, with the vibration during use, the movable plate 1307 will also shake up and down along the guiding rods 1309. During the shaking process, it will continuously push the wire mesh 1308 to bend, so as to shake off the dust adhered to the wire mesh 1308.

[0038] Embodiment 2

[0039] Refer to Figure 3 、 Figure 4 、 Figure 8As shown in the figure, four sprockets 1311 are also installed on the side of the retaining frame 1304 close to the front end opening of the casing 1. The four sprockets 1311 are arranged in a rectangle. A chain 1312 is also installed between the upper and lower sprockets 1311 on the same side for transmission. A telescopic sleeve 1313 is rotatably installed on one tooth of the chain 1312. A support plate 1314 is slidably sleeved in the telescopic sleeve 1313. The same cleaning plate 1315 is installed between the two support plates 1314. A cleaning brush 1316 is also provided on the side of the cleaning plate 1315 facing the inner protective net 1305. Two synchronous motors 1317 are installed on the inner wall of the casing 1. The two synchronous motors 1317 are controlled by the same single-chip microcomputer. The output shafts of the two synchronous motors 1317 are respectively connected to the central axes of the upper two sprockets 1311. A bearing seat is also sleeved on the central axis of the sprocket 1311. The bearing seat is fixed in the casing 1. The single-chip microcomputer can control the two synchronous motors 1317 to work synchronously, thereby driving the corresponding sprockets 1311 to rotate. The sprockets 1311 cooperate to drive the chain 1312 to rotate. The telescopic sleeve 1313 installed on one tooth of the chain 1312 will continuously slide up and down along the movement track of the chain 1312. At this time, the support plate 1314 inside the telescopic sleeve 1313 will drive the cleaning plate 1315 to slide up and down. The cleaning brush 1316 provided on the cleaning plate 1315 will clean the inner protective net 1305.

[0040] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt the mature conventional means such as bolts, rivets, and welding in the prior art. The machinery, parts, and equipment all adopt the conventional models in the prior art. Plus, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0041] The implementation principle of a protection device for a generator set in an embodiment of the present invention is as follows:

[0042] The protection device of the present invention realizes effective heat dissipation and dust protection for the generator set 2 by optimizing the structural design of the casing 1. Specifically, an air inlet cover 11 and an air outlet cover 12 are respectively installed at the front end and the rear end of the casing 1. A plurality of ventilation mesh holes 1104 are opened on the back surface of the air inlet cover 11 for introducing external air. The reinforcing plates 1102 that are spliced into a circular space on the inner wall of the air inlet cover 11 not only enhance the structural strength of the air inlet cover 11 but also reduce vibration, thereby ensuring the stable operation of the heat dissipation system. A powerful cooling fan 1103 is installed in this circular space. Through the high-speed operation of the fan, external air is inhaled and accelerated to flow, providing continuous cooling effect for the generator set 2;

[0043] To further improve the heat dissipation effect, a plurality of heat dissipation fins 101 are installed side by side along the air flow direction on the inner walls of both sides of the casing 1. These heat dissipation fins 101 can increase the contact area between the air flow and the inner wall of the casing 1, thereby improving the heat dissipation efficiency. In addition, an air box 102 is installed on the inner wall of the top of the casing 1. The guide plate 103 and the arc-shaped panel 104 inside the air box 102 work together to guide the air flow in the direction of the generator set 2. The guide plate 103 can change the direction of the air flow so that it blows more concentratedly towards the generator set 2, while the arc-shaped panel 104 further optimizes the air flow distribution through circular motion to ensure that the air flow directly acts on the surface of the generator set 2, thereby achieving efficient heat dissipation;

[0044] Further, four sprockets 1311 are installed on the side of the retaining frame 1304 close to the front opening of the casing 1. These sprockets 1311 are arranged in a rectangle and are connected by a chain 1312. A telescopic sleeve 1313 is rotatably installed on one tooth of the chain 1312. A support plate 1314 is slidably sleeved inside the telescopic sleeve 1313. A cleaning plate 1315 is installed between the two support plates. A cleaning brush 1316 is provided on the side of the cleaning plate 1315 facing the inner protective net 1305, which can be used to clean the dust and impurities on the inner protective net 1305 to avoid the influence of dust accumulation on the heat dissipation effect.

[0045] 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 by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and do not limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective device for a generator set, characterized in that: The invention comprises a casing (1) and a generator set (2) installed inside the casing (1); the bottom of the casing (1) is open and is provided with a protective bottom plate (13): An air inlet cover (11) and an air outlet cover (12) are respectively installed at the front opening and the rear opening of the casing (1); The protective bottom plate (13) is also provided with a bottom air outlet (1301) near the front opening, a dustproof screen (1302) is installed in the bottom air outlet (1301), a blocking frame (1304) sealed and connected to the inner wall of the housing (1) is also installed at the overlapping position with the dustproof screen (1302), an inner protective screen (1305) is installed in the blocking frame (1304), and a blocking cover (1303) is installed at the bottom of the inner protective screen (1305), and the blocking cover (1303) is buckled on the dustproof screen (1302); A lower sand plate (1306) and a movable plate (1307) are also provided on the inner protective net (1305) near the front opening of the housing (1); an air inlet passage is provided between the movable plate (1307) and the lower sand plate (1306), and a metal wire mesh (1308) is provided in the air inlet passage; The bottoms of the lower sand plate (1306) and the movable plate (1307) are both provided with arc edges for guiding the sand and dust to make circular motion.

2. A protective device for a generator set according to claim 1, characterized in that: Two mounting bars are also installed on the side of the blocking frame (1304), and a plurality of guide rods (1309) are vertically installed between the two mounting bars. The movable plate (1307) is slidably installed on the plurality of guide rods (1309), and a plurality of spring members (1310) are also connected between the movable plate (1307) and the mounting bar above, and the spring members (1310) are sleeved on the guide rods (1309).

3. A protective device for a generator set according to claim 1, characterized in that: A clamping plate (1308A) is also installed on the side of the lower sand plate (1306) and the movable plate (1307). The clamping plate (1308A) is fixed by screws and fixes the metal wire mesh (1308) on the lower sand plate (1306) or the movable plate (1307).

4. A protective device for a generator set according to claim 1, characterized in that: Four sprockets (1311) are also installed on the side of the baffle frame (1304) close to the front end opening of the housing (1), and the four sprockets (1311) are arranged in a rectangular shape. A chain (1312) is also installed between the two sprockets (1311) on the same side. A telescopic sleeve (1313) is rotatably installed on one of the teeth of the chain (1312). A support plate (1314) is slidably installed in the telescopic sleeve (1313). A cleaning plate (1315) is installed between the two support plates (1314). A cleaning brush (1316) is also arranged on the side of the cleaning plate (1315) facing the inner protective net (1305).

5. A protective device for a generator set according to claim 4, characterized in that: Two synchronous motors (1317) are mounted on the inner wall of the casing (1); the two synchronous motors (1317) are controlled by the same single-chip microcomputer, and the output shafts of the two synchronous motors (1317) are respectively connected to the central shafts of the two upper sprocket wheels (1311); the central shafts of the sprocket wheels (1311) are also provided with bearing seats, which are fixed in the casing (1).

6. A protective device for a generator set according to claim 1, characterized in that: The back of the air inlet cover (11) is provided with a plurality of ventilation mesh holes (1104), and the inner wall of the air inlet cover (11) is connected with a plurality of reinforcing plates (1102) for forming a circular space, in which a powerful heat dissipation fan (1103) is installed.

7. A protective device for a generator set according to claim 1, characterized in that: A plurality of heat dissipation fins (101) are installed side by side on the inner walls on both sides of the casing (1) along the direction of the airflow, and a bellows (102) is installed on the top inner wall of the casing (1), a plurality of guide plates (103) are installed side by side on the top inner wall of the bellows (102), and a plurality of arc panels (104) are also installed in the bellows (102) below the guide plates (103), and the arc panels (104) guide the airflow to blow toward the generator set (2).

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