Circulating cooling type diesel generating set

Abstract

The invention relates to the technical field of diesel generator cooling, in particular to a circulating cooling type diesel generator set which comprises a bottom plate, a diesel engine installed in the middle of the top face of the bottom plate, a generator body installed at one end of the top face of the bottom plate, a radiator installed at the other end of the top face of the bottom plate, a shell installed at the rear end of the top face of the bottom plate and a turning plate rotationally connected to the shell. The upper end of the radiator is communicated with a water inlet tank, the lower end of the radiator is communicated with a water outlet tank, a liquid storage tank is installed on the top face of the shell, and the lower end of the liquid storage tank is communicated with the water inlet tank. Continuous and efficient circulation of cooling liquid is achieved, it is ensured that heat generated in the working process of a diesel engine can be effectively taken away in time, the heat dissipation efficiency of a radiator is improved, the external temperature of the diesel engine and a generator body during working is reduced, and the diesel engine and the generator body can still work even under the severe working conditions of high temperature, high load and the like. And the efficient heat dissipation effect can be kept, and a powerful guarantee is provided for stable operation of the diesel engine.

Description

Technical Field

[0001] The invention relates to the technical field of diesel generator cooling, in particular to a circulating cooling type diesel generator set. Background Art

[0002] Circulating cooling diesel generator sets are commonly used power generation equipment in modern industry. Their core function is to ensure stable operation of the generator set under high temperature working environment through an effective cooling system. The traditional diesel generator set cooling system mainly relies on radiator cooling, which dissipates the heat generated inside the generator set into the air through the radiator.

[0003] After searching, the Chinese patent with the announcement number CN221647010U provides a high-efficiency cooling device for a diesel generator set, including a diesel generator, a base plate, a base, a high-efficiency blowing assembly and a swing assembly. The high-efficiency blowing assembly can double the air delivery efficiency. The swing assembly can convert the rotational force of the second motor into a linear force that reciprocates left and right, so that the flap swings left and right; improve cooling efficiency, optimize air flow, ensure equipment stability and durability, etc.;

[0004] However, during use, it was found that the air cooling that dissipates the heat generated by the diesel engine during operation through air circulation is not effective for the rapid cooling of the coolant, and the cooling efficiency fails to reach an ideal state, which is not conducive to the long-term stable operation of the diesel generator set. When the diesel generator set is in a high temperature or continuous working environment, the limitations of this cooling method can easily lead to overheating of the generator set, thereby affecting its performance and life. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a circulating cooling diesel generator set, which aims to solve the technical problems of poor cooling efficiency in the prior art cooling method to a certain extent.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a circulating cooling type diesel generator set, comprising a bottom plate, a diesel engine is installed in the middle of the top surface of the bottom plate, a generator body is installed at one end of the top surface of the bottom plate, a radiator is installed at the other end of the top surface of the bottom plate, a shell is installed at the rear end of the top surface of the bottom plate, a flap is rotatably connected to the shell, a plurality of brackets are installed on the bottom surface of the bottom plate, the upper end of the radiator is connected to a water inlet tank, the lower end of the radiator is connected to a water outlet tank, a liquid storage tank is installed on the top surface of the shell, and the lower end of the liquid storage tank is connected to the water inlet tank;

[0007] A first water pump is installed on the diesel engine, a water outlet end of the first water pump is connected to the diesel engine, a circulation pipe is connected to the diesel engine, the circulation pipe is connected to a water inlet tank, a thermostat is connected to the thermostat, a cooling pipe is connected to the thermostat, a cooling pipe is connected to a cooling assembly, a plate heat exchanger is provided on the cooling assembly, the plate heat exchanger is connected to the water outlet tank through the water outlet pipe, and a filter assembly is installed on the right side of the bottom plate.

[0008] Preferably, an air filter is installed on the top surface of the shell, and the air filter is connected to the intake pipe of the diesel engine. An oxidation catalyst is installed on the top surface of the shell, and the oxidation catalyst is connected to the exhaust pipe of the diesel engine. A muffler is connected to the oxidation catalyst.

[0009] Through the above technical solution, harmful emissions of diesel engines are reduced and noise pollution is lowered by using an oxidation catalyst and a muffler.

[0010] Preferably, the thermostat is connected to a return pipe, the other end of the return pipe is connected to the circulation pipe, two connecting blocks are fixedly connected to the radiator outer frame, a circular frame is fixedly connected between the two connecting blocks, a fixed block is fixedly connected inside the circular frame, a dual-axis motor is installed on the fixed block through a front end mounting seat, and a first fan blade is sleeved on the output shaft of the dual-axis motor away from the diesel engine at one end.

[0011] Through the above technical solution, the sucked air is discharged to the outside through the radiator core on the radiator by the first fan blade, so that the flowing air cools the radiator core on the radiator.

[0012] Preferably, the cooling assembly includes a cooling box, the plate heat exchanger is installed at the rear end of the base plate, the upper end of the plate heat exchanger is connected to a cold water inlet pipe, and the lower end of the plate heat exchanger is connected to a cold water outlet pipe, the cold water inlet pipe and the cold water outlet pipe are respectively connected to the left and right ends of the cooling box, a second water pump is installed inside the cooling box, the water inlet end of the second water pump is connected to the cold water inlet pipe, and the cooling box is made of metal thermal conductive material.

[0013] Through the above technical solution, the cold water in the cooling box is pumped to the upper end of the plate heat exchanger through the cold water inlet pipe by the second water pump to perform heat exchange with the hot coolant.

[0014] Preferably, a plurality of baffles are staggeredly distributed inside the cooling box, a regulating pipe with a valve is connected to the cooling box, a plurality of heat sinks are fixedly connected to the top surface of the cooling box in a uniformly arranged structure, the heat sinks are wavy, a protective shell is fixedly connected to the edge of the top surface of the cooling box, and a connecting rod is fixedly connected to the protective shell.

[0015] Through the above technical solution, the flow path of the warm water is increased through the baffle, the heat conduction efficiency is improved, and the heat of the warm water is conducted to the cooling box and the heat sink.

[0016] Preferably, the connecting rod is rotatably connected to two rotating shafts, the rotating shafts are sleeved with pulleys, the two pulleys are driven by belt friction, the rotating shafts are sleeved with second fan blades, one of the rotating shafts and the output shaft of the dual-shaft motor close to the diesel engine are respectively sleeved with first bevel gears, the housing is rotatably connected to a rotating rod, both ends of the rotating rod are respectively sleeved with second bevel gears, and the second bevel gear is meshingly connected to the first bevel gear.

[0017] Through the above technical solution, the two pulleys are driven by belt friction, and the two rotating shafts drive the second fan blades to rotate synchronously. The rotating second fan blades blow external air onto the heat sink, and the air contact area and heat dissipation efficiency are increased through the wavy heat sink.

[0018] Preferably, the filter assembly comprises a mounting frame, the mounting frame is fixedly connected to the right wall of the shell, a slot is provided on the top surface of the mounting frame, a filter block is inserted into the slot, and a waterproof breathable membrane is installed on the side of the filter block close to the shell.

[0019] Through the above technical solution, the quality of the air sucked into the shell is improved, providing a good operating environment for the diesel engine and the generator body.

[0020] Preferably, a plurality of air inlet grooves are provided in a uniformly arranged structure on the right side of the shell, a movable block is provided inside the air inlet groove, the upper end of the movable block is rotatably connected to the shell, the inner wall of the movable block is symmetrically structured and fixedly connected with two springs, the upper end of the spring is fixedly connected with a support block, the support block is fixedly connected to the inner wall of the shell, the bottom surface of the movable block and the lower end of the air inlet groove are inclined respectively, and the movable block abuts against the air inlet groove.

[0021] Through the above technical solution, the movable block seals the air inlet groove to prevent the intrusion of external dust and moisture.

[0022] Preferably, a plurality of damping spring shock absorbers are installed on the top surface of the bracket by bolts, the upper ends of the damping spring shock absorbers are fixedly connected to the bottom surface of the base plate by bolts, and the shell and the inner wall of the flap are respectively installed with sound insulation cotton.

[0023] Through the above technical solutions, the sound insulation performance of the equipment is further improved and noise pollution is reduced.

[0024] Preferably, a handle is fixedly connected to the middle of the flap, the outer wall of the flap close to the bottom plate is symmetrically fixedly connected with two buckles, the front wall of the bottom plate is symmetrically fixedly connected with two clamping heads, and the buckles are clamped together with the clamping heads.

[0025] The above technical solution makes it easy to maintain and inspect the diesel engine and generator body inside the shell.

[0026] Beneficial effects of the present invention:

[0027] 1. The first fan blade is driven to rotate by the output shaft of the dual-axis motor away from one end of the diesel engine, so that negative pressure is formed in the internal space of the bottom plate, the shell and the flap, so that the external air is filtered by the filter component and then transported to the inside of the shell, and the sucked air is discharged to the outside through the radiator core on the radiator through the first fan blade, so that the flowing air cools the radiator core on the radiator, and the coolant inside the radiator is initially cooled. At the same time, the air flow inside the shell sucks and cools the heat generated externally when the diesel engine and the generator body are working, thereby realizing continuous and efficient circulation of the coolant, ensuring that the heat generated by the diesel engine during operation can be taken away in a timely and effective manner, improving the heat dissipation efficiency of the radiator, and reducing the external temperature of the diesel engine and the generator body when they are working.

[0028] 2. The rotating second fan blade blows the external air onto the heat sink, and the wavy heat sink increases the air contact area and heat dissipation efficiency; after the heat dissipation is completed, the warm water is cooled and then re-enters the plate heat exchanger through the cold water outlet pipe for heat exchange, which improves the cooling effect and efficiency of the cooling box, and facilitates the plate heat exchanger to cool the coolant of the diesel engine again, further improving the cooling effect, and improving the stability and reliability of the diesel engine. Even under harsh working conditions such as high temperature and high load, it can maintain efficient heat dissipation effect, providing a strong guarantee for the stable operation of the diesel engine.

[0029] 3. The dust and impurities in the external air are filtered through the filter block, and the water vapor in the external air is blocked through the waterproof breathable membrane, so that the quality of the air sucked into the shell is better, providing a good operating environment for the diesel engine and the generator body. The movable block seals the air intake groove to prevent the intrusion of external dust and water vapor, reduce the potential damage to the generator body, and extend the service life of the equipment.

[0030] 4. The muffler reduces the noise pollution when the diesel engine is working and improves the quietness of the diesel engine. The sound insulation cotton reduces the noise generated by the diesel engine and the generator body when working, further improves the sound insulation performance of the equipment and reduces noise pollution.

[0031] 5. Separate the buckle from the clamp head, and open or close the flap by the handle to facilitate maintenance and inspection of the diesel engine and generator body inside the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a rear view of the overall structure of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of a diesel engine of the present invention;

[0035] Figure 4 It is a right view of the reflux pipe structure of the present invention;

[0036] Figure 5 It is a right view of the first fan blade structure of the present invention;

[0037] Figure 6 It is a rear view of the heat sink structure of the present invention;

[0038] Figure 7 It is a right side view of the second fan blade structure of the present invention;

[0039] Figure 8 It is a schematic diagram of the internal structure of the cooling box of the present invention;

[0040] Fig. 9 It is a schematic diagram of the assembly of the filter assembly structure of the present invention;

[0041] Fig.10 It is a schematic diagram of the support structure of the present invention;

[0042] Fig.11 It is a schematic diagram of the handle structure of the present invention.

[0043] In the figure: 1, bottom plate; 2, diesel engine; 3, radiator; 4, shell; 5, flap; 6, bracket; 7, water inlet tank; 8, water outlet tank; 9, liquid storage tank; 10, first water pump; 11, circulation pipe; 12, thermostat; 13, cooling pipe; 14, cooling assembly; 1401, plate heat exchanger; 1402, cooling box; 1403, cold water inlet pipe; 1404, cold water outlet pipe; 1405, baffle; 1406, regulating pipe; 1407, heat sink; 1408, protective shell; 1409, connecting rod; 1410, rotating shaft; 1411, pulley; 1412, belt; 1413, second fan blade; 1414, first bevel gear; 1 415. second bevel gear; 1416. rotating rod; 1417. second water pump; 15. water outlet pipe; 16. filter assembly; 1601. mounting frame; 1602. slot; 1603. filter block; 1604. waterproof breathable membrane; 1605. air inlet slot; 1606. movable block; 1607. spring; 1608. support block; 17. air filter; 18. oxidation catalyst; 19. muffler; 20. return pipe; 21. connecting block; 22. circular frame; 23. fixing block; 24. dual-axis motor; 25. first fan blade; 26. damping spring shock absorber; 27. handle; 28. buckle; 29. ​​clamp; 30. generator body. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0045] Embodiment 1

[0046] like Figures 1 to 8 As shown, this embodiment provides a circulating cooling diesel generator set, including a bottom plate 1, a diesel engine 2 is installed in the middle of the top surface of the bottom plate 1, a generator body 30 is installed at one end of the top surface of the bottom plate 1, a radiator 3 is installed at the other end of the top surface of the bottom plate 1, a shell 4 is installed at the rear end of the top surface of the bottom plate 1, a flap 5 is rotatably connected to the shell 4, a plurality of brackets 6 are installed on the bottom surface of the bottom plate 1, the upper end of the radiator 3 is connected to a water inlet tank 7, the lower end of the radiator 3 is connected to a water outlet tank 8, a liquid storage tank 9 is installed on the top surface of the shell 4, and the lower end of the liquid storage tank 9 is connected to the water inlet tank 7;

[0047] A first water pump 10 is installed on the diesel engine 2, and the water outlet end of the first water pump 10 is connected to the diesel engine 2. A circulation pipe 11 is connected to the diesel engine 2, and the circulation pipe 11 is connected to the water inlet tank 7. The water inlet end of the first water pump 10 is connected to a thermostat 12, and a cooling pipe 13 is connected to the thermostat 12, and the cooling pipe 13 is connected to a cooling assembly 14. A plate heat exchanger 1401 is provided on the cooling assembly 14, and the plate heat exchanger 1401 is connected to the water outlet tank 8 through a water outlet pipe 15. A filter assembly 16 is installed on the right side of the bottom plate 1.

[0048] The thermostat 12 is connected to a return pipe 20, the other end of the return pipe 20 is connected to the circulation pipe 11, two connecting blocks 21 are fixedly connected to the outer frame of the radiator 3, a circular frame 22 is fixedly connected between the two connecting blocks 21, a fixing block 23 is fixedly connected inside the circular frame 22, a dual-axis motor 24 is installed on the fixing block 23 through a front mounting seat, and a first fan blade 25 is sleeved on the output shaft of the dual-axis motor 24 away from the diesel engine 2 at one end; the sucked air is discharged to the outside through the radiator core on the radiator 3 through the first fan blade 25, so that the flowing air cools the radiator core on the radiator 3.

[0049] When in use, the coolant to be used is first transported to the inside of the liquid storage tank 9, and then transported to the inside of the water inlet tank 7 through the liquid storage tank 9, and then enters the inside of the water outlet tank 8 through the radiator 3. The coolant in the water outlet tank 8 is sucked by the first water pump 10, and then passes through the water outlet pipe 15 to the cooling component 14 and then enters the inside of the cooling pipe 13. The coolant enters the first water pump 10 and is transported to the inside of the diesel engine 2 for heat exchange through the control of the thermostat 12 to absorb the heat generated by the engine. At this time, the hot coolant enters the circulation pipe 11;

[0050] Through the control of the thermostat 12, the coolant at cold start or with a lower temperature is re-delivered to the diesel engine 2. At this time, the coolant with a higher temperature re-enters the water inlet tank 7 through the circulation pipe 11, and is cooled by the radiator 3 and the cooling assembly 14 before re-entering the diesel engine 2 for circulation.

[0051] When the hot coolant enters the radiator 3 for heat dissipation, the first fan blade 25 is driven to rotate by the output shaft of the dual-axis motor 24 away from the end of the diesel engine 2, so that a negative pressure is formed in the internal space of the bottom plate 1, the shell 4 and the flap 5, so that the external air is filtered by the filter assembly 16 and then transported to the inside of the shell 4, and the sucked air is discharged to the outside through the radiator core on the radiator 3 by the first fan blade 25, so that the flowing air cools the radiator core on the radiator 3, and the coolant inside the radiator 3 is initially cooled. At the same time, the air flow inside the shell 4 draws and cools the heat generated externally when the diesel engine 2 and the generator body 30 are working, thereby realizing continuous and efficient circulation of the coolant, ensuring that the heat generated by the diesel engine 2 during operation can be taken away in a timely and effective manner, improving the heat dissipation efficiency of the radiator 3, and reducing the external temperature of the diesel engine 2 and the generator body 30 when they are working.

[0052] Embodiment 2

[0053] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, this embodiment is based on the previous embodiment, and differs from the previous embodiment in that the cooling assembly 14 includes a cooling box 1402, a plate heat exchanger 1401 is installed at the rear end of the base plate 1, the upper end of the plate heat exchanger 1401 is connected to a cold water inlet pipe 1403, and the lower end of the plate heat exchanger 1401 is connected to a cold water outlet pipe 1404, the cold water inlet pipe 1403 and the cold water outlet pipe 1404 are respectively connected to the left and right ends of the cooling box 1402, a second water pump 1417 is installed inside the cooling box 1402, the water inlet end of the second water pump 1417 is connected to the cold water inlet pipe 1403, and the cooling box 1402 is made of metal thermal conductive material; the cold water in the cooling box 1402 is pumped to the upper end of the plate heat exchanger 1401 by the second water pump 1417 through the cold water inlet pipe 1403, and exchanges heat with the hot coolant.

[0054] There are multiple baffles 1405 distributed alternately inside the cooling box 1402, and a regulating pipe 1406 with a valve is connected to the cooling box 1402. The top surface of the cooling box 1402 is in a uniformly arranged structure and fixedly connected to multiple heat sinks 1407, and the heat sinks 1407 are wavy. A protective shell 1408 is fixedly connected to the edge of the top surface of the cooling box 1402, and a connecting rod 1409 is fixedly connected to the protective shell 1408. The baffles 1405 increase the flow path of the warm water, improve the heat conduction efficiency, and the heat of the warm water is conducted to the cooling box 1402 and the heat sinks 1407.

[0055] Two rotating shafts 1410 are rotatably connected to the connecting rod 1409, and pulleys 1411 are sleeved on the rotating shaft 1410. The two pulleys 1411 are frictionally driven by belts 1412. A second fan blade 1413 is sleeved on the rotating shaft 1410. A first bevel gear 1414 is sleeved on the output shaft of one rotating shaft 1410 and the dual-shaft motor 24 near the diesel engine 2, respectively. A rotating rod 1416 is rotatably connected to the housing 4, and second bevel gears 1415 are sleeved on both ends of the rotating rod 1416, respectively. The second bevel gear 1415 is meshingly connected with the first bevel gear 1414; the two pulleys 1411 are frictionally driven by belts 1412, and the two rotating shafts 1410 drive the second fan blades 1413 to rotate synchronously. The rotating second fan blades 1413 blow external air onto the heat sink 1407, and the air contact area and heat dissipation efficiency are improved through the wavy heat sink 1407.

[0056] When in use, when the coolant flows out from the water outlet box 8, after passing through the water outlet pipe 15, it enters the plate heat exchanger 1401 for preliminary heat exchange, and the cold water in the cooling box 1402 is pumped to the upper end of the plate heat exchanger 1401 by the second water pump 1417 through the cold water inlet pipe 1403, and exchanges heat with the hot coolant, and becomes warm water after absorbing heat. The warm water then flows back to the inside of the cooling box 1402 through the cold water outlet pipe 1404. The baffle 1405 increases the flow path of the warm water, improves the heat conduction efficiency, and the heat of the warm water is conducted to the cooling box 1402 and the heat sink 1407;

[0057] At this time, while the dual-axis motor 24 drives the first blade 25 to rotate, the meshing connection between one of the first bevel gears 1414 and the second bevel gear 1415 drives the rotating rod 1416 and the other first bevel gear 1414 to rotate, so that the other second bevel gear 1415 drives one of the rotating shafts 1410 to rotate. At this time, the two pulleys 1411 are frictionally transmitted by the belt 1412, and the two rotating shafts 1410 drive the second blades 1413 to rotate synchronously. The rotating second blades 1413 blow external air onto the heat sink 1407, and the wavy heat sink 1407 increases the air contact area and heat dissipation efficiency.

[0058] After the heat dissipation is completed, the warm water is cooled and then re-enters the plate heat exchanger 1401 through the cold water outlet pipe 1404 for heat exchange, thereby improving the cooling effect and efficiency of the cooling box 1402, and facilitating the plate heat exchanger 1401 to cool down the coolant of the diesel engine 2 again, thereby further improving the cooling effect, and improving the stability and reliability of the diesel engine 2. Even under harsh working conditions such as high temperature and high load, it can maintain efficient heat dissipation effect, thereby providing a strong guarantee for the stable operation of the diesel engine 2.

[0059] Embodiment 3

[0060] like Figure 1 , Figure 2 , Figure 3 and Fig. 9 As shown, this embodiment is based on the previous embodiment, and is different from the previous embodiment in that the filter assembly 16 includes a mounting frame 1601, the mounting frame 1601 is fixedly connected to the right wall of the shell 4, a slot 1602 is provided on the top surface of the mounting frame 1601, a filter block 1603 is inserted into the slot 1602, and a waterproof and breathable membrane 1604 is installed on the side of the filter block 1603 close to the shell 4, so that the quality of the air sucked into the shell 4 is better, providing a good operating environment for the diesel engine 2 and the generator body 30.

[0061] A plurality of air inlet grooves 1605 are arranged in an evenly arranged structure on the right side of the shell 4, and a movable block 1606 is arranged inside the air inlet groove 1605. The upper end of the movable block 1606 is rotatably connected to the shell 4, and the inner wall of the movable block 1606 is symmetrically structured and fixedly connected with two springs 1607, and the upper end of the spring 1607 is fixedly connected with a support block 1608, and the support block 1608 is fixedly connected to the inner wall of the shell 4, and the bottom surface of the movable block 1606 and the lower end of the air inlet groove 1605 are inclined respectively, and the movable block 1606 abuts against the air inlet groove 1605; the movable block 1606 seals the air inlet groove 1605 to prevent the intrusion of external dust and moisture.

[0062] During filtering, the filter block 1603 and the waterproof breathable membrane 1604 are inserted into the mounting frame 1601 through the slot 1602, the filter block 1603 filters dust and impurities in the external air, and the waterproof breathable membrane 1604 blocks water vapor in the external air, so that the quality of the air sucked into the housing 4 is better, providing a good operating environment for the diesel engine 2 and the generator body 30;

[0063] When negative pressure is generated inside the shell 4, the external air is filtered and pushes the movable block 1606 to rotate along the shell 4. At this time, the spring 1607 is compressed, and the filtered air passes through the air inlet groove 1605 and enters the shell 4. When the diesel engine 2 and the generator body 30 are not working, the pressure inside the shell 4 is normal. At this time, the spring 1607 returns to the initial position through the restoring force, so that the movable block 1606 seals the air inlet groove 1605, preventing the intrusion of external dust and moisture, reducing the potential damage to the generator body 30, and extending the service life of the equipment.

[0064] Embodiment 4

[0065] like Figure 1 , Figure 2 , Figure 3 , Fig.10 and Fig.11 As shown, this embodiment is based on the previous embodiment, and is different from the previous embodiment in that an air filter 17 is installed on the top surface of the shell 4, and the air filter 17 is connected to the intake pipe of the diesel engine 2. An oxidation catalyst 18 is installed on the top surface of the shell 4, and the oxidation catalyst 18 is connected to the exhaust pipe of the diesel engine 2. The oxidation catalyst 18 is connected to a muffler 19; through the use of the oxidation catalyst 18 and the muffler 19, the harmful emissions of the diesel engine 2 are reduced and the noise pollution is reduced.

[0066] A plurality of damping spring shock absorbers 26 are installed on the top surface of the bracket 6 by bolts, the upper end of the damping spring shock absorber 26 is fixedly connected to the bottom surface of the base plate 1 by bolts, and the inner walls of the shell 4 and the flap 5 are respectively installed with sound insulation cotton, which further improves the sound insulation performance of the equipment and reduces noise pollution.

[0067] A handle 27 is fixedly connected to the middle part of the flap 5, and the outer wall of the flap 5 on one side close to the base plate 1 is symmetrically fixedly connected with two buckles 28, and the front wall of the base plate 1 is symmetrically fixedly connected with two clamping heads 29, and the buckles 28 are snap-fitted with the clamping heads 29, so that maintenance and inspection of the diesel engine 2 and the generator body 30 inside the shell 4 are facilitated.

[0068] When in use, by installing an air filter 17 on the top surface of the housing 4, impurities in the air entering the diesel engine 2 are effectively filtered, the oxidation catalyst 18 is connected to the exhaust pipe of the diesel engine 2, and further converts harmful substances in the exhaust gas discharged by the diesel engine 2, thereby reducing harmful emissions, and the muffler 19 reduces the noise pollution when the diesel engine 2 is working, thereby improving the quietness performance of the diesel engine 2;

[0069] The damping spring shock absorber 26 absorbs and disperses the vibration generated by the diesel engine 2 and the generator body 30 during operation, reducing the impact of the vibration on the equipment and the surrounding environment, improving the stability and service life of the equipment, and reducing the noise generated by the vibration; the sound insulation cotton reduces the noise generated by the diesel engine 2 and the generator body 30 during operation, further improving the sound insulation performance of the equipment and reducing noise pollution;

[0070] The buckle 28 is separated from the clamp head 29, and the flap 5 is opened or closed by the handle 27, so as to facilitate maintenance and inspection of the diesel engine 2 and the generator body 30 inside the housing 4.

[0071] Working principle:

[0072] When in use, the coolant to be used is first transported to the inside of the liquid storage tank 9, and then transported to the inside of the water inlet tank 7 through the liquid storage tank 9, and then enters the inside of the water outlet tank 8 through the radiator 3. The coolant in the water outlet tank 8 is sucked by the first water pump 10, and then passes through the water outlet pipe 15 to the cooling component 14 and then enters the inside of the cooling pipe 13. The coolant enters the first water pump 10 and is transported to the inside of the diesel engine 2 for heat exchange through the control of the thermostat 12 to absorb the heat generated by the engine. At this time, the hot coolant enters the circulation pipe 11;

[0073] Through the control of the thermostat 12, the coolant at cold start or with a lower temperature is re-delivered to the diesel engine 2. At this time, the coolant with a higher temperature re-enters the water inlet tank 7 through the circulation pipe 11, and is cooled by the radiator 3 and the cooling assembly 14 before re-entering the diesel engine 2 for circulation.

[0074] When the hot coolant enters the radiator 3 for heat dissipation, the first fan blade 25 is driven to rotate by the output shaft of the dual-axis motor 24 away from the end of the diesel engine 2, so that a negative pressure is formed in the internal space of the bottom plate 1, the shell 4 and the flap 5, so that the external air is filtered by the filter assembly 16 and then transported to the inside of the shell 4, and the sucked air is discharged to the outside through the radiator core on the radiator 3 by the first fan blade 25, so that the flowing air cools the radiator core on the radiator 3, and the coolant inside the radiator 3 is initially cooled. At the same time, the air flow inside the shell 4 draws and cools the heat generated externally when the diesel engine 2 and the generator body 30 are working, thereby realizing continuous and efficient circulation of the coolant, ensuring that the heat generated by the diesel engine 2 during operation can be taken away in a timely and effective manner, improving the heat dissipation efficiency of the radiator 3, and reducing the external temperature of the diesel engine 2 and the generator body 30 when they are working.

[0075] When in use, when the coolant flows out from the water outlet box 8, after passing through the water outlet pipe 15, it enters the plate heat exchanger 1401 for preliminary heat exchange, and the cold water in the cooling box 1402 is pumped to the upper end of the plate heat exchanger 1401 by the second water pump 1417 through the cold water inlet pipe 1403, and exchanges heat with the hot coolant, and becomes warm water after absorbing heat. The warm water then flows back to the inside of the cooling box 1402 through the cold water outlet pipe 1404. The baffle 1405 increases the flow path of the warm water, improves the heat conduction efficiency, and the heat of the warm water is conducted to the cooling box 1402 and the heat sink 1407;

[0076] At this time, while the dual-axis motor 24 drives the first blade 25 to rotate, the meshing connection between one of the first bevel gears 1414 and the second bevel gear 1415 drives the rotating rod 1416 and the other first bevel gear 1414 to rotate, so that the other second bevel gear 1415 drives one of the rotating shafts 1410 to rotate. At this time, the two pulleys 1411 are frictionally transmitted by the belt 1412, and the two rotating shafts 1410 drive the second blades 1413 to rotate synchronously. The rotating second blades 1413 blow external air onto the heat sink 1407, and the wavy heat sink 1407 increases the air contact area and heat dissipation efficiency.

[0077] After the heat dissipation is completed, the warm water is cooled and then re-enters the plate heat exchanger 1401 through the cold water outlet pipe 1404 for heat exchange, thereby improving the cooling effect and efficiency of the cooling box 1402, and facilitating the plate heat exchanger 1401 to cool down the coolant of the diesel engine 2 again, thereby further improving the cooling effect, and improving the stability and reliability of the diesel engine 2. Even under harsh working conditions such as high temperature and high load, it can maintain efficient heat dissipation effect, thereby providing a strong guarantee for the stable operation of the diesel engine 2.

[0078] During filtering, the filter block 1603 and the waterproof breathable membrane 1604 are inserted into the mounting frame 1601 through the slot 1602, the filter block 1603 filters dust and impurities in the external air, and the waterproof breathable membrane 1604 blocks water vapor in the external air, so that the quality of the air sucked into the housing 4 is better, providing a good operating environment for the diesel engine 2 and the generator body 30;

[0079] When negative pressure is generated inside the shell 4, the external air is filtered and pushes the movable block 1606 to rotate along the shell 4. At this time, the spring 1607 is compressed, and the filtered air passes through the air inlet groove 1605 and enters the shell 4. When the diesel engine 2 and the generator body 30 are not working, the pressure inside the shell 4 is normal. At this time, the spring 1607 returns to the initial position through the restoring force, so that the movable block 1606 seals the air inlet groove 1605, preventing the intrusion of external dust and moisture, reducing the potential damage to the generator body 30, and extending the service life of the equipment.

[0080] When in use, by installing an air filter 17 on the top surface of the housing 4, impurities in the air entering the diesel engine 2 are effectively filtered, the oxidation catalyst 18 is connected to the exhaust pipe of the diesel engine 2, and further converts harmful substances in the exhaust gas discharged by the diesel engine 2, thereby reducing harmful emissions, and the muffler 19 reduces the noise pollution when the diesel engine 2 is working, thereby improving the quietness performance of the diesel engine 2;

[0081] The damping spring shock absorber 26 absorbs and disperses the vibration generated by the diesel engine 2 and the generator body 30 during operation, reducing the impact of the vibration on the equipment and the surrounding environment, improving the stability and service life of the equipment, and reducing the noise generated by the vibration; the sound insulation cotton reduces the noise generated by the diesel engine 2 and the generator body 30 during operation, further improving the sound insulation performance of the equipment and reducing noise pollution;

[0082] The buckle 28 is separated from the clamp head 29, and the flap 5 is opened or closed by the handle 27, so as to facilitate maintenance and inspection of the diesel engine 2 and the generator body 30 inside the housing 4.

[0083] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A circulating cooling diesel generator set, comprising a bottom plate (1), characterized in that: A diesel engine (2) is installed in the middle of the top surface of the base plate (1), a generator body (30) is installed at one end of the top surface of the base plate (1), a radiator (3) is installed at the other end of the top surface of the base plate (1), a shell (4) is installed at the rear end of the top surface of the base plate (1), a flap (5) is rotatably connected to the shell (4), a plurality of brackets (6) are installed on the bottom surface of the base plate (1), the upper end of the radiator (3) is connected to a water inlet tank (7), the lower end of the radiator (3) is connected to a water outlet tank (8), a liquid storage tank (9) is installed on the top surface of the shell (4), and the lower end of the liquid storage tank (9) is connected to the water inlet tank (7); The diesel engine (2) is provided with a first water pump (10), the water outlet of the first water pump (10) is connected to the diesel engine (2), the diesel engine (2) is connected to a circulation pipe (11), the circulation pipe (11) is connected to a water inlet tank (7), the water inlet of the first water pump (10) is connected to a thermostat (12), the thermostat (12) is connected to a cooling pipe (13), the cooling pipe (13) is connected to a cooling assembly (14), the cooling assembly (14) is provided with a plate heat exchanger (1401), the plate heat exchanger (1401) is connected to the water outlet tank (8) via a water outlet pipe (15), and a filter assembly (16) is provided on the right side of the bottom plate (1).

2. The circulating cooling diesel generator set according to claim 1, characterized in that: An air filter (17) is installed on the top surface of the housing (4), and the air filter (17) is connected to the intake pipe of the diesel engine (2). An oxidation catalyst (18) is installed on the top surface of the housing (4), and the oxidation catalyst (18) is connected to the exhaust pipe of the diesel engine (2). A muffler (19) is connected to the oxidation catalyst (18).

3. The circulating cooling diesel generator set according to claim 1, characterized in that: The thermostat (12) is connected to a return pipe (20), the other end of which is connected to a circulation pipe (11); two connection blocks (21) are fixedly connected to the outer frame of the radiator (3); a circular frame (22) is fixedly connected between the two connection blocks (21); a fixed block (23) is fixedly connected inside the circular frame (22); a dual-axis motor (24) is mounted on the fixed block (23) via a front end mounting seat; a first fan blade (25) is sleeved on an output shaft of the dual-axis motor (24) at one end away from the diesel engine (2).

4. The circulating cooling diesel generator set according to claim 3, characterized in that: The cooling assembly (14) comprises a cooling box (1402), the plate heat exchanger (1401) is installed at the rear end of the base plate (1), the upper end of the plate heat exchanger (1401) is connected to a cold water inlet pipe (1403), and the lower end of the plate heat exchanger (1401) is connected to a cold water outlet pipe (1404), the cold water inlet pipe (1403) and the cold water outlet pipe (1404) are respectively connected to the left and right ends of the cooling box (1402), and a second water pump (1417) is installed inside the cooling box (1402), and the water inlet end of the second water pump (1417) is connected to the cold water inlet pipe (1403).

5. The circulating cooling diesel generator set according to claim 4, characterized in that: A plurality of baffles (1405) are staggeredly distributed inside the cooling box (1402); a regulating pipe (1406) with a valve is connected to the cooling box (1402); a plurality of heat sinks (1407) are fixedly connected to the top surface of the cooling box (1402) in a uniformly arranged structure; the heat sinks (1407) are wavy; a protective shell (1408) is fixedly connected to the edge of the top surface of the cooling box (1402); and a connecting rod (1409) is fixedly connected to the protective shell (1408).

6. The circulating cooling diesel generator set according to claim 5, characterized in that: The connecting rod (1409) is rotatably connected to two rotating shafts (1410), the rotating shaft (1410) is sleeved with a pulley (1411), the two pulleys (1411) are frictionally driven by a belt (1412), the rotating shaft (1410) is sleeved with a second fan blade (1413), one of the rotating shafts (1410) and the output shaft of the dual-shaft motor (24) close to the diesel engine (2) are respectively sleeved with a first bevel gear (1414), the housing (4) is rotatably connected to a rotating rod (1416), the two ends of the rotating rod (1416) are respectively sleeved with a second bevel gear (1415), and the second bevel gear (1415) is meshingly connected with the first bevel gear (1414).

7. The circulating cooling diesel generator set according to claim 3, characterized in that: The filter assembly (16) comprises a mounting frame (1601), the mounting frame (1601) being fixedly connected to the right wall of the housing (4), a slot (1602) being provided on the top surface of the mounting frame (1601), a filter block (1603) being inserted into the slot (1602), and a waterproof breathable membrane (1604) being installed on a side of the filter block (1603) close to the housing (4).

8. The circulating cooling diesel generator set according to claim 7, characterized in that: The right side of the shell (4) is provided with a plurality of air inlet grooves (1605) in an evenly arranged structure, and a movable block (1606) is provided inside the air inlet groove (1605). The upper end of the movable block (1606) is rotatably connected to the shell (4), and the inner wall of the movable block (1606) is symmetrically structured and fixedly connected with two springs (1607). The upper end of the spring (1607) is fixedly connected with a support block (1608), and the support block (1608) is fixedly connected to the inner wall of the shell (4). The bottom surface of the movable block (1606) and the lower end of the air inlet groove (1605) are respectively inclined, and the movable block (1606) is in contact with the air inlet groove (1605).

9. The circulating cooling diesel generator set according to claim 1, characterized in that: A plurality of damping spring shock absorbers (26) are installed on the top surface of the bracket (6) by means of bolts, and the upper ends of the damping spring shock absorbers (26) are fixedly connected to the bottom surface of the base plate (1) by means of bolts, and the inner walls of the shell (4) and the flap (5) are respectively installed with sound insulation cotton.

10. The circulating cooling diesel generator set according to claim 9, characterized in that: A handle (27) is fixedly connected to the middle of the flap (5); an outer wall of one side of the flap (5) close to the base plate (1) is symmetrically fixedly connected to two buckles (28); a front wall of the base plate (1) is symmetrically fixedly connected to two clamping heads (29); the buckles (28) are clamped and matched with the clamping heads (29).

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