Flat tube of oil cooler core

Abstract

The invention relates to the technical field of flat tubes, in particular to an oil cooler core flat tube, an inner fin is fixedly mounted in an outer tube, a protection assembly is mounted on the outer surface of the outer tube, the protection assembly comprises a protection shell, a plurality of sets of damping shells are fixedly mounted in the protection shell, damping springs are arranged in the damping shells, and the damping springs are arranged in the damping shells. A plurality of sets of damping shells are arranged in the protective shell, damping rods are slidably connected to the interiors of the multiple sets of damping shells, one ends of the multiple sets of damping rods are fixedly connected with the outer surface of the outer pipe, one sides of the multiple sets of damping shells communicate with spray heads, and the output ends of the spray heads communicate with the interior of the protective shell. Pressure of lubricating oil is converted through deformation force generated by elastic deformation of each group of damping springs, vibration transmitted to the outer pipe by flow velocity change of the lubricating oil when the outer pipe is used is reduced, and pipe bundle breakage, flange loosening or shell fatigue cracks possibly caused by abnormal vibration and long-term vibration generated by the outer pipe through lubricating oil fluid are prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flat tube, in particular to an oil cooler core body flat tube. BACKGROUND

[0002] The oil cooler core body flat tube is a core component of the oil cooler, which carries refrigerant or cooling liquid and realizes heat exchange, and is usually a flat metal tube with multiple micro flow channels, such as being used in wind energy and solar energy conversion equipment, but also faces some equipment problems, such as the over-temperature problem of the fan gear box, which occurs in many models and is more prominent in some units. Therefore, the traditional tube sheet type wind turbine gear box oil cooler needs to be optimized and designed to find a more economical and practical modification. At present, during the operation of the outer tube of the oil cooler core body flat tube, the lubricating oil fluid flowing in the outer tube is easy to induce abnormal vibration of the outer tube. Under the long-term vibration effect, the outer tube may be broken, the flange may be loose, or the shell may be cracked, thereby affecting the stable operation of the system and the service life of the equipment. SUMMARY

[0003] The purpose of the present application is to provide an oil cooler core body flat tube. Each set of shock absorbing rods reciprocates inside each set of shock absorbing shells. The pressure of the lubricating oil is converted into a shape change force by the elastic deformation of each set of shock absorbing springs. The change of the flow rate of the lubricating oil during use reduces the vibration transmitted by the outer tube. The outer tube is prevented from being abnormally vibrated by the lubricating oil fluid. Long-term vibration may cause the tube bundle to break, the flange to be loose, or the shell to be cracked.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an oil cooler core body flat tube, comprising an outer tube, an inner fin fixedly installed inside the outer tube, a protection assembly installed on the outer surface of the outer tube, the protection assembly comprising a protection shell, a plurality of shock absorbing shells fixedly installed inside the protection shell, a shock absorbing spring arranged inside each set of shock absorbing shells, a shock absorbing rod slidingly connected inside each set of shock absorbing shells, one end of each set of shock absorbing rods being fixedly connected with the outer surface of the outer tube, a nozzle communicated with one side of each set of shock absorbing shells, and the output end of the nozzle being communicated with the inside of the protection shell. An adjusting assembly is rotatably installed inside the outer tube, the adjusting assembly comprising a first turnover rod, a plurality of first baffles fixedly installed on the first turnover rod, a second turnover rod movably connected inside the first turnover rod, and a plurality of second baffles fixedly installed on the second turnover rod, each set of second baffles and each set of first baffles being located at the opening of the outer tube and the inner fin.

[0005] Preferably, the oil cooler core body flat tube is a tube fin type wind turbine oil cooler core body flat tube, the inner fin is an inner fin of the outer tube, and the outer tube and the inner fin are heat treated, flattened, soaked in a brazing agent, and dried and treated to form a core.

[0006] Preferably, the material of the outer tube and the inner fin is aluminum material, the outer tube is an O-shaped welded tube, the material thickness of the outer tube is 0.45 mm, and the outer dimension is 40 mm*3.3 mm.

[0007] Preferably, the inner fin is a rectangular staggered spoiler fin, the material thickness of the inner fin is 0.2 mm, the wave height of the inner fin is 2.45 mm, the wave distance of the inner fin is 5 mm, the pitch is 3.2 mm, and the width of the inner fin is 35 mm.

[0008] Preferably, one end of the damping spring is fixedly connected with the inner part of the damping shell, the other end of the damping spring is fixedly connected with the other end of the damping rod, the damping rod is slidably connected with the inner part of the damping shell through the damping spring, and the inner part of each group of the damping shell is provided with the cooling liquid containing the corrosion inhibitor.

[0009] Preferably, the first turnover rod and the second turnover rod are penetrated into the inner part of the outer tube, a plurality of grooves are arranged on the first turnover rod, each group of the second baffle is penetrated into each group of the groove, and each group of the second baffle is fixedly connected with the second turnover rod through each group of the groove.

[0010] Compared with the prior art, the present application has the following beneficial effects: When the lubricating oil flows between the outer tube and the inner fin, a plurality of damping springs are affected by the flow rate of the lubricating oil, the lubricating oil transmits pressure to a plurality of damping rods, the plurality of damping rods apply pressure to the plurality of damping springs, the plurality of damping springs drive each group of the damping rod to elastically deform, each group of the damping rod reciprocally moves in each group of the damping shell, the pressure of the lubricating oil is converted into deformation force through each group of the damping, the vibration of the outer tube caused by the change of the flow rate of the lubricating oil is reduced, the abnormal vibration of the outer tube caused by the lubricating oil is prevented, and the pipe bundle, the flange and the shell are prevented from being broken, loosened or cracked.

[0011] The present application can squeeze the cooling liquid containing the corrosion inhibitor in each group of the damping shell, then the cooling liquid containing the corrosion inhibitor is pressed and sprayed onto the surface of the protective shell through each group of the nozzle, the cooling liquid containing the corrosion inhibitor can form a protective film on the surface of the protective shell, so as to isolate air, water vapor and other corrosive gases, prevent the surface of the protective shell from being corroded or rusted, reduce the friction between the protective shells, and improve the service life of the whole device.

[0012] The staff of the present application can adjust the size of the through opening of the outer tube and the inner fin and the number of the through opening of the outer tube and the inner fin by rotating the first turnover rod and the second turnover rod in turn with different viscosity lubricating oil, respectively, the first turnover rod drives a plurality of first baffles and the second turnover rod drives a plurality of second baffles, since the viscosity of the lubricating oil changes significantly with temperature, the viscosity is high and the flowability is poor at low temperature, the viscosity is low and the flowability is good at high temperature, by adjusting the size of the through opening of the outer tube and the inner fin, the influence of the change of the viscosity on the heat exchange performance is compensated. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the overall structure schematic diagram of the present application; Figure 2 It is the structure connection schematic diagram of the outer tube and the inner fin of the present application; Figure 3 It is the structure section view of the protection assembly of the present application; Figure 4 It is the structure section view of the damping shell of the present application; Figure 5 It is the overall structure section view of the present application; Figure 6 It is the first turnover rod and the second turnover rod of the present application.

[0014] In the figure: 1, outer tube; 2, inner fin; 3, protection assembly; 301, protection shell; 302, damping shell; 303, damping rod; 304, damping spring; 305, nozzle; 4, adjustment assembly; 401, first turnover rod; 402, first baffle; 403, second turnover rod; 404, second baffle. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0016] Reference Figures 1 to 4As shown, the present application provides an oil cooler core flat tube, which comprises an outer tube 1, an inner fin 2 fixedly installed inside the outer tube 1, and a protection assembly 3 installed on the outer surface of the outer tube 1. The protection assembly 3 comprises a protection shell 301, a plurality of damping shells 302 fixedly installed inside the protection shell 301, a damping spring 304 arranged inside each damping shell 302, and a damping rod 303 slidably connected inside each damping shell 302. One end of each damping rod 303 is fixedly connected to the outer surface of the outer tube 1, and a spray head 305 is communicated with one side of each damping shell 302. The output end of the spray head 305 is communicated with the inside of the protection shell 301. When the overall device is in use, the lubricating oil flows between the outer tube 1 and the inner fin 2. Since the inner fin 2 is a rectangular staggered disturbance fin, the inner fin 2 can further increase the oil flow area of the oil cooler, increase the flow resistance, and further improve the heat exchange performance compared with the traditional tube sheet type oil cooler, thereby meeting the increasing performance requirements of customers, and greatly reducing the product cost. When the lubricating oil flows between the outer tube 1 and the inner fin 2, the plurality of damping springs 304 are affected by the flow rate of the lubricating oil. The lubricating oil transmits pressure to the plurality of damping rods 303, and the plurality of damping rods 303 apply pressure to the damping spring 304. Each damping rod 303 is driven by the damping spring 304 to elastically deform. Each damping rod 303 reciprocally moves inside each damping shell 302, so that the pressure of the lubricating oil is converted into a deformation force by each damping spring 304. The vibration of the outer tube 1 caused by the change of the flow rate of the lubricating oil during use is reduced, and abnormal vibration of the outer tube 1 caused by the lubricating oil fluid is prevented. Long-term vibration may cause tube bundle rupture, flange loosening, or shell fatigue cracking. Since each damping shell 302 contains a corrosion inhibitor-containing cooling liquid, each damping rod 303 reciprocally moves inside each damping shell 302, and each damping rod 303 extrudes the corrosion inhibitor-containing cooling liquid inside each damping shell 302. The corrosion inhibitor-containing cooling liquid is then pressurized and sprayed onto the surface of the protection shell 301 through each spray head 305. The corrosion inhibitor-containing cooling liquid can form a protective film on the surface of the protection shell 301 to isolate air, water vapor, and other corrosive gases, thereby preventing the surface of the protection shell 301 from being corroded or rusted, reducing the friction between the protection shells 301, and improving the service life of the overall device. Referring to Figures 5 to 6 As shown, the outer tube 1 is rotatably installed with an adjusting assembly 4. The adjusting assembly 4 comprises a first turnover rod 401, a plurality of first baffles 402 fixedly installed on the first turnover rod 401, a second turnover rod 403 movably connected inside the first turnover rod 401, and a plurality of second baffles 404 fixedly installed on the second turnover rod 403. The plurality of second baffles 404 and the plurality of first baffles 402 are located at the through port of the outer tube 1 and the inner fin 2. During use, the outer tube 1, because the multiple sets of second baffles 404 and the multiple sets of first baffles 402 are located at the opening of the outer tube 1 and the inner fin 2, and each set of second baffles 404 is fixedly connected with the second turnover rod 403 through the groove on each set of first turnover rod 401, so the staff can adjust the size of the opening of the outer tube 1 and the inner fin 2 and the number of the opening of the outer tube 1 and the inner fin 2 by rotating the first turnover rod 401 and the second turnover rod 403 in turn, respectively, and the first turnover rod 401 drives the multiple sets of first baffles 402 and the second turnover rod 403 drives the multiple sets of second baffles 404. Because the viscosity of the lubricating oil changes significantly with temperature, the viscosity is high and the flowability is poor at low temperature, and the viscosity is low and the flowability is good at high temperature, the size of the opening of the outer tube 1 and the inner fin 2 is adjusted to compensate for the influence of the change in viscosity on the heat exchange performance.

[0017] In an optional embodiment, the oil cooler core flat tube is a tube-fin type wind power oil cooling radiator core flat tube, the inner fin 2 is an embedded fin in the outer tube 1, and the outer tube 1 and the inner fin 2 are heat treated, flattened, soaked in a brazing agent, and dried to form the core.

[0018] It should be noted that the outer tube 1 and the inner fin 2 are heat treated, flattened, soaked in a brazing agent, and dried to form the core, which facilitates the furnace brazing process of the outer tube 1 and the inner fin 2.

[0019] In an optional embodiment, the outer tube 1 and the inner fin 2 are made of aluminum material, the outer tube 1 is an O-shaped welded tube, the material thickness of the outer tube 1 is 0.45 mm, and the outer dimension of the outer tube 1 is 40 mm x 3.3 mm.

[0020] It should be noted that the material and thickness of the outer tube 1 and the inner fin 2 facilitate the staff to be familiar with the overall device.

[0021] In an optional embodiment, the inner fin 2 is a rectangular staggered disturbance fin, the material thickness of the inner fin 2 is 0.2 mm, the wave height of the inner fin 2 is 2.45 mm, the wave distance of the inner fin 2 is 5 mm, the pitch is 3.2 mm, and the width of the inner fin 2 is 35 mm.

[0022] It should be noted that, because the inner fin 2 is a rectangular staggered disturbance fin, the inner fin 2 can further increase the lubricating oil flow area of the oil cooler and increase the flow resistance compared with the traditional tube-fin type oil cooler.

[0023] In an optional embodiment, one end of the damping spring 304 is fixedly connected with the inside of the damping shell 302, the other end of the damping spring 304 is fixedly connected with the other end of the damping rod 303, the damping rod 303 is slidably connected with the inside of the damping shell 302 through the damping spring 304, and each set of damping shell 302 is provided with a cooling liquid containing a corrosion inhibitor.

[0024] It should be noted that the change of lubricating oil flow rate makes the plurality of damping rods 303 press the damping springs 304, the damping springs 304 drive the elastic deformation of the damping rods 303 and the reciprocating movement in the damping shells 302, and the pressure of the lubricating oil is converted into the deformation force, thereby reducing the vibration of the outer pipe 1 caused by the fluctuation of the oil flow rate.

[0025] In an optional embodiment, the first and second turning rods 401 and 403 are penetrated into the inner part of the outer pipe 1, and the first turning rod 401 is provided with a plurality of grooves, and each group of second baffles 404 is penetrated into each group of grooves and fixedly connected with the second turning rod 403 through each group of grooves.

[0026] It should be noted that, since the plurality of second baffles 404 and the plurality of first baffles 402 are located at the through opening of the outer pipe 1 and the inner fin 2, and each group of second baffles 404 is fixedly connected with the second turning rod 403 through the grooves on the first turning rod 401, the first and second turning rods 401 and 403 are sequentially and respectively rotated by the staff, and the first turning rod 401 drives the plurality of first baffles 402 and the second turning rod 403 drives the plurality of second baffles 404 to rotate and adjust.

[0027] Working principle: when the overall device is used, the lubricating oil flows between the outer pipe 1 and the inner fin 2, the plurality of damping springs 304 is affected by the flow rate of the lubricating oil, the lubricating oil transmits pressure to the plurality of damping rods 303, the plurality of damping rods 303 applies pressure to the damping springs 304, and each group of damping rods 303 is elastically deformed by the plurality of damping springs 304, and each group of damping rods 303 reciprocates in each group of damping shells 302, so that the pressure of the lubricating oil is converted into the deformation force by each group of damping springs 304, thereby reducing the vibration of the outer pipe 1 caused by the fluctuation of the lubricating oil flow rate during use. Since each group of damping shells 302 contains the corrosion inhibitor-containing cooling liquid, each group of damping rods 303 reciprocates in each group of damping shells 302, each group of damping rods 303 extrudes the corrosion inhibitor-containing cooling liquid in each group of damping shells 302, and then the corrosion inhibitor-containing cooling liquid is pressed and sprayed onto the surface of the protective shell 301 through each group of nozzles 305, thereby protecting the protective shell 301.

[0028] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An oil cooler core flat tube characterized by, The application relates to an oil cooler, which comprises an outer pipe (1), an inner fin (2) fixedly arranged in the outer pipe (1), and a protection assembly (3) arranged on the outer surface of the outer pipe (1). The outer pipe (1) is internally rotatably arranged with an adjusting assembly (4), the adjusting assembly (4) comprises a first turnover rod (401), a plurality of first baffles (402) are fixedly arranged on the first turnover rod (401), a second turnover rod (403) is movably arranged in the first turnover rod (401), a plurality of second baffles (404) are fixedly arranged on the second turnover rod (403), and the plurality of second baffles (404) and the plurality of first baffles (402) are arranged at the through opening of the outer pipe (1) and the inner fin (2).

2. An oil cooler core flat tube according to claim 1, wherein The oil cooler core flat pipe is a finned wind power oil cooling radiator core flat pipe, the inner fin (2) is an inner fin of the outer pipe (1), the outer pipe (1) and the inner fin (2) are heat-treated, flattened, soaked in a brazing agent and dried to form a core.

3. An oil cooler core flat tube according to claim 1, wherein The outer pipe (1) and the inner fin (2) are made of aluminum material, the outer pipe (1) is an O-shaped welded pipe, the material thickness of the outer pipe (1) is 0.45 mm, and the outer dimension of the outer pipe (1) is 40 mm*3.3 mm.

4. The flat tube for an oil cooler core according to claim 1, wherein The inner fin (2) is a rectangular staggered disturbance fin, the material thickness of the inner fin (2) is 0.2 mm, the wave height of the inner fin (2) is 2.45 mm, the wave distance of the inner fin (2) is 5 mm, the pitch of the inner fin (2) is 3.2 mm, and the width of the inner fin (2) is 35 mm.

5. An oil cooler core flat tube according to claim 1, wherein One end of the damping spring (304) is fixedly connected with the damping shell (302), the other end of the damping spring (304) is fixedly connected with the other end of the damping rod (303), the damping rod (303) is slidably connected with the damping shell (302) through the damping spring (304), and the cooling liquid containing the corrosion inhibitor is arranged in each damping shell (302).

6. An oil cooler core flat tube as set forth in claim 1 wherein, The first turnover rod (401) and the second turnover rod (403) are internally penetrated with the outer pipe (1), a plurality of grooves are arranged on the first turnover rod (401), one side of each second baffle (404) is penetrated with each groove, and one side of each second baffle (404) is fixedly connected with the second turnover rod (403) through each groove.

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