CN109578792B

CN109578792B - Bare tube type oil cooler capable of improving heat dissipation effect through turbulent flow

Info

Publication number: CN109578792B
Application number: CN201811376162.XA
Authority: CN
Inventors: 何前
Original assignee: Zhejiang Nadic Cnc Equipment Co
Current assignee: ZHEJIANG NADIC CNC EQUIPMENT Co.
Priority date: 2018-11-19
Filing date: 2018-11-19
Publication date: 2020-11-13
Anticipated expiration: 2038-11-19
Also published as: CN109578792A

Abstract

The invention discloses a bare tube type oil cooler for improving heat dissipation effect by turbulent flow, which structurally comprises: the water-cooled heat exchanger comprises a cooling pipe, a water filling port, a fixing hoop, a base, a coupler, a right end cover and a connector, wherein the left side and the right side of the top of a cooling pipe shell are welded and fixed with the water filling port to form an integral structure, threads at the bottom of the fixing hoop are vertically embedded in the base and connected through bolts, and the base is horizontally embedded at the bottom of the cooling pipe.

Description

Bare tube type oil cooler capable of improving heat dissipation effect through turbulent flow

Technical Field

The invention relates to a cooler, in particular to a bare tube type oil cooler capable of improving the heat dissipation effect through turbulent flow.

Background

The oil cooler is an oil cooling device commonly used in a hydraulic system and a lubricating system, and can realize heat exchange of two fluid media with certain temperature difference by utilizing the oil cooler, so that the aims of reducing the oil temperature and ensuring the normal operation of the system are fulfilled, and common water is used as a heat exchange medium for cooling.

However, in the process of circulating the water flow in the cooler, the temperature of the water flow near the oil pipe is high due to heat exchange with the oil pipe wall, and the temperature of the water in the middle is gradually increased when the water temperature is gradually increased in the flowing process, so that the heat exchange efficiency with the outer wall of the oil pipe cannot be further improved.

Disclosure of Invention

In view of the above problems, the present invention provides a bare tube type oil cooler that improves heat dissipation effect by turbulent flow.

In order to achieve the purpose, the invention is realized by the following technical scheme: a bare tube type oil cooler for improving heat dissipation effect by turbulent flow, the structure thereof includes: cooling tube, water filling port, fixed hoop, base, shaft coupling, right side end cover, connector, the left and right sides and the water filling port welded fastening at cooling tube shell top are and form a body structure, the perpendicular nestification of screw thread of fixed hoop bottom is in the base and through bolted connection, the base level nestification is in the cooling tube bottom, the shaft coupling is circular lid dress to install the left side at the cooling tube through the bolt all around, the right side end cover is installed on the right side of cooling tube and is parallel to each other with left shaft coupling, the external screw thread of connector bottom and the mutual interlock of the internal thread of right side end cover are equipped with the sealing washer between, the protection is sealed to the cooling tube inner structure includes: the oil pipe comprises a turbulence device, a protective shell, a circulating oil pipe, an oil pipe stabilizing frame and a pipe sleeve, wherein the turbulence device is horizontally arranged on the left side of the protective shell, a bearing on the left side of the turbulence device is fixed with a coupler, every two circulating oil pipes horizontally penetrate through holes in the middle of the oil pipe stabilizing frame together, the right end of each circulating oil pipe is fixedly welded with the pipe sleeve, and the bottom of the pipe sleeve is mutually matched with the inner surface of the protective shell.

As a further improvement of the invention, the turbulent flow device comprises a waterproof base, a motor coupling block, a rotary bearing, a driving main shaft and an impeller, wherein the motor coupling block is arranged in the waterproof base and horizontally penetrates through the center of the rotary bearing, the driving main shaft is welded and fixed on the right side of the motor coupling block, the outer wall of the driving main shaft horizontally penetrates through a shaft sleeve in the middle of the impeller, the bottom of the movable bottom of the impeller close to the right side is in an arc shape, and the impeller is fixed in the protective shell through welding.

As a further improvement of the invention, the impeller consists of an external blade, an annular shell, a rotating rail, an internal blade and a movable base, wherein the external blade is arranged on the outer ring of the annular shell and is integrated with the annular shell, the annular shell is fixed on the right side of the rotating rail, the internal blade is fit with the center of the annular shell, the joint is reinforced by glue, annular grooves between the movable base and the rotating rail are fit with each other, the center of the internal blade is nested with a driving main shaft, and a turbulence rod is arranged at the center of the internal blade and is arranged at the center of the circulating oil pipe.

As a further improvement of the invention, the movable base comprises a middle shaft, a lifting rail, a wheel rim, an elastic ring body and a fixed shell, wherein the middle shaft is arranged in the center of the wheel rim, two sides of the middle shaft slide up and down in a groove seat of the lifting rail, and the elastic ring body is vertically fixed between the middle shaft and the fixed shell.

As a further improvement of the invention, the oil pipe stabilizer comprises a fixed bottom plate, a pipe clamp and outer fin plates, wherein the fixed bottom plate is vertically welded at the bottom of the pipe clamp, and the outer fin plates are provided with six groups and are evenly fixed at the left side and the right side of the pipe clamp.

As a further improvement of the invention, the waterproof base is conical, and the conical head faces to the direction of water flow.

As a further improvement of the invention, an annular elastic ring is arranged inside the elastic ring body.

As a further improvement of the invention, more than two circulation plates are arranged inside the protective shell.

The invention has the beneficial effects that:

the device solves the problem that the water temperature in the middle of the cooling pipe is higher and the heat exchange efficiency is low, drives the impeller to rotate by the power of water flow to drive the turbulence rod in the middle to rotate, and drives the water flow to rotate and stir due to the action of the circulation plate on the pipe wall, so that the water flow around the pipe wall can quickly exchange heat in the forward flowing process, and meanwhile, the water flow scouring reduces the accumulation of scale on the surface of the circulation oil pipe.

In conclusion, the water flow is rotated to exchange heat through turbulent flow after the improvement, so that the heat exchange efficiency is improved, and meanwhile, the rotating water flow has less chance that internal scales are attached to the protective shell and the pipe wall of the circulating oil pipe in the heating process, the surface of the circulating oil pipe is kept clean, and the heat exchange efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of a bare tube type oil cooler for improving heat dissipation effect by turbulent flow according to the present invention.

FIG. 2 is a schematic view of the structure of the cooling tube of the present invention.

FIG. 3 is a schematic structural diagram of a flow perturbation device of the present invention.

Fig. 4 is a schematic structural diagram of an impeller according to the present invention.

FIG. 5 is a schematic diagram of the structure A of FIG. 4 according to the present invention.

Fig. 6 is a schematic structural view of the circulation plate inside the protective casing according to the present invention.

Fig. 7 is a schematic structural view of the oil pipe stabilizer of the present invention.

FIG. 8 is a schematic perspective view of the left side joint of the circulation oil pipe of the present invention.

In the figure: the device comprises a cooling pipe-1, a water filling port-2, a fixed hoop-3, a base-4, a coupler-5, a right end cover-6, a connector-7, a flow disturbing device-11, a protective shell-12, a circulating oil pipe-13, an oil pipe stabilizing frame-14, a pipe sleeve-15, a waterproof base-115, a motor coupling block-112, a rotary bearing-113, a driving main shaft-114, an impeller-115, an external paddle-1151, an annular shell-1152, a rotary rail-1153, an internal paddle-1154, a movable base-1155, a middle shaft-11551, a lifting rail-11552, a rim-11553, an elastic ring body-11554 and a fixed shell-11555.

Detailed Description

In order to make the technical means, the creation features, the achievement objects and the effects of the present invention easy to understand, fig. 1 to 8 schematically show the structure of the cooling pipe according to the embodiment of the present invention, and the present invention will be further described with reference to the following detailed description.

Examples

As shown in fig. 1 to 8, the present invention provides a bare tube type oil cooler for improving heat dissipation effect by turbulent flow, which comprises: cooling tube 1, water filling port 2, fixed hoop 3, base 4, shaft coupling 5, right side end cover 6, connector 7, the left and right sides at 1 shell top of cooling tube and 2 welded fastening of water filling port and form a body structure, the screw thread of fixed hoop 3 bottoms is nested perpendicularly in base 4 and through bolted connection, the level of base 4 is nested in 1 bottom of cooling tube, shaft coupling 5 is circular lid dress to install the left side at cooling tube 1 through the bolt all around, right side end cover 6 is installed on cooling tube 1's right side and is parallel to each other with left shaft coupling 5, the external screw thread of 7 bottoms of connector interlocks each other with the internal thread of right side end cover 6, is equipped with the sealing washer between to seal the protection, 1 internal structure of cooling tube includes: turbulent flow device 11, protective housing 12, circulating oil pipe 13, oil pipe steady rest 14, pipe box 15, turbulent flow device 11 level is installed in protective housing 12's left side, and its left bearing is fixed mutually with shaft coupling 5, two liang of levels of circulating oil pipe 13 run through in the hole at oil pipe steady rest 14 middle part together, 13 right side ends of circulating oil pipe and 15 welded fastening of pipe box, the bottom of pipe box 15 agrees with each other with protective housing 12 internal surface. The coupler 5 can be assisted by additionally increasing the motor, the effect of cleaning the interior of the motor in work is more obvious under the assistance of the motor, and meanwhile, the flowability of water flow can be improved.

As a further improvement of the present invention, the turbulent device 11 is composed of a waterproof base 111, a motor coupling block 112, a rotary bearing 113, a driving spindle 114, and an impeller 115, the motor coupling block 112 is installed inside the waterproof base 111 and horizontally penetrates through the center of the rotary bearing 113, the driving spindle 114 is welded and fixed on the right side of the motor coupling block 112, the outer wall of the driving spindle 114 horizontally penetrates through a shaft sleeve in the middle of the impeller 115, the bottom of the movable bottom of the impeller 115 near the right side is arc-shaped and fixed inside the protective housing 12 by welding, the impeller 115 has a certain bevel angle for guiding flow, and then the waterproof base 111 guides water flow to the middle of the impeller 115 to enable the rotating power to be reinforced secondarily, so as to better drive the turbulent rod in the middle to rotate the water flow for heat dissipation.

As a further improvement of the present invention, the impeller 115 is composed of an outer paddle 1151, an annular shell 1152, a rotating rail 1153, an inner paddle 1154 and a movable base 1155, the outer paddle 1151 is installed on the outer ring of the annular shell 1152 and is integrated with the outer ring, the annular shell 1152 is fixed on the right side of the rotating rail 1153, the inner paddle 1154 is fitted with the center of the annular shell 1152, the joint is reinforced by glue, the annular grooves between the movable base 1155 and the rotating rail 1153 are fitted with each other, the center of the inner paddle 1154 and the driving spindle 114 are nested with each other, the center of the inner paddle 1154 is provided with a spoiler, the spoiler is installed at the center of the circulating oil pipe 13, and the spoiler is in the shape of a thin screw rod, so that the water flow does not generate too much resistance while rotating.

As a further improvement of the present invention, the movable base 1155 comprises a central shaft 11551, a lifting rail 11552, a rim 11553, an elastic ring 11554 and a fixed housing 11555, wherein the central shaft 11551 is installed at the center of the rim 11553, two sides of the central shaft 11551 slide up and down in a groove seat of the lifting rail 11552, and the elastic ring 11554 is vertically fixed between the central shaft 11551 and the fixed housing 11555.

As a further improvement of the invention, the oil pipe stabilizer 14 is composed of a fixed bottom plate 141, a pipe clamp 142 and outer fins 143, wherein the fixed bottom plate 141 is vertically welded at the bottom of the pipe clamp 142, and the outer fins 143 are provided with six groups and are evenly fixed at the left side and the right side of the pipe clamp 142, so that the heat dissipation at the stabilizer is improved.

As a further improvement of the present invention, the waterproof base 115 is tapered, and the tapered head faces the direction of the water flow, and the circular tapered shape can reduce the resistance to the water flow and improve the water flow circulation.

As a further improvement of the invention, an annular elastic ring is arranged in the elastic ring body 11554, and the elastic ring is arranged in the rubber to reduce the corrosion phenomenon caused by water flow for a long time.

As a further improvement of the present invention, more than two circulation plates are disposed inside the protective casing 12, and the circulation plates facilitate the rotation guidance of the water flow, so that the rotation speed is increased, and the water flow is more uniformly cooled.

The working principle is as follows:

the connector 7 of right side end cover 6 connects the oil pipe that needs cooling in the course of the work, and the water filling port 2 on cooling tube 1 upper portion connects the external water source that carries out circulative cooling, and fixed hoop 3 conveniently fixes the top of cooling tube 1 unable adjustment base 4, avoids because the overweight roll after cooling tube 1 fills with water.

Can the external motor of shaft coupling 5 assist at the in-process that dispels the heat, and then make vortex device 11 at the rotation that is more quick under the circumstances of external power, the speed of heat exchange is faster between the inside rivers of protection casing 12 and oil circulating pipe 13, and oil circulating pipe 13 installs the unable and rivers direct contact in the position of oil pipe steady rest 14, therefore self oil pipe steady rest 14 is equipped with many arcuate outer fin boards and improves radiating efficiency.

Some states are the state of not having the outside motor, and rivers are rotatory by the water filling port 2 entering drive impeller 115 at top, and rivers flow out along waterproof base 115 toward impeller 115 middle part, and rivers rotate along the spoiler bar on impeller 115 inside paddle 1154 right side and carry out the heat transfer to this circulation.

The right side of the impeller 115 is buckled with the rotating rail 1153 through the movable base 1155 to rotate, and the middle part reduces the obstruction of water flow, so that the water flow forms annular flow along the circulating plate of the protective shell 12 during flowing, and dirt in the pipe can be cleaned.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A bare tube type oil cooler for improving heat dissipation effect by turbulent flow, the structure thereof includes: cooling tube (1), water filling port (2), fixed hoop (3), base (4), shaft coupling (5), right side end cover (6), connector (7), its characterized in that:

the left side and the right side of the top of the shell of the cooling pipe (1) are welded and fixed with the water injection port (2) to form an integral structure, threads at the bottom of the fixed hoop (3) are vertically embedded in the base (4) and connected through bolts, the base (4) is horizontally embedded at the bottom of the cooling pipe (1), the coupler (5) is in a circular cover assembly, the periphery of the coupler is arranged on the left side of the cooling pipe (1) through bolts, the right side end cover (6) is arranged on the right side of the cooling pipe (1) and parallel to the left side coupler (5), external threads at the bottom of the connector (7) are mutually meshed with internal threads of the right side end cover (6), and a sealing ring is arranged between the two threads for sealing protection;

the cooling pipe (1) has an internal structure comprising: the oil pipe well structure comprises a turbulence device (11), a protective shell (12), a circulating oil pipe (13), an oil pipe stabilizing frame (14) and a pipe sleeve (15), wherein the turbulence device (11) is horizontally arranged on the left side of the protective shell (12), a bearing on the left side of the turbulence device is fixed with a coupler (5), every two circulating oil pipes (13) horizontally penetrate through holes in the middle of the oil pipe stabilizing frame (14), the right end of the circulating oil pipe (13) is welded and fixed with the pipe sleeve (15), and the bottom of the pipe sleeve (15) is matched with the inner surface of the protective shell (12);

the flow disturbing device (11) comprises a waterproof base (111), a motor coupling block (112), a rotary bearing (113), a driving main shaft (114) and an impeller (115), wherein the motor coupling block (112) is arranged inside the waterproof base (111) and horizontally penetrates through the center of the rotary bearing (113), the driving main shaft (114) is welded and fixed on the right side of the motor coupling block (112), the outer wall of the driving main shaft horizontally penetrates through a shaft sleeve in the middle of the impeller (115), and the movable bottom of the impeller (115) close to the right side is arc-shaped and is fixed inside the protective shell (12) through welding;

impeller (115) comprises outside thick liquid piece (1151), ring shell (1152), swivel rail (1153), inside thick liquid piece (1154), movable base (1155), outside thick liquid piece (1151) is installed in the outer lane of ring shell (1152) and is fused as an organic whole, the right side at swivel rail (1153) is fixed in ring shell (1152), inside thick liquid piece (1154) agrees with the center at ring shell (1152), and the junction is consolidated through glue, the annular between movable base (1155) and swivel rail (1153) agrees with each other, inside thick liquid piece (1154) its center and drive spindle (114) are nested each other, the center of inside thick liquid piece (1154) is equipped with the vortex rod, and its position is installed in the center of circulating oil pipe (13).

2. The bare tube oil cooler with improved heat dissipation through turbulent flow of claim 1, wherein: the movable base (1155) comprises a center shaft (11551), a lifting rail (11552), a wheel rim (11553), an elastic ring body (11554) and a fixed shell (11555), wherein the center shaft (11551) is arranged at the center of the wheel rim (11553), two sides of the center shaft (11551) slide up and down in a groove seat of the lifting rail (11552), and the elastic ring body (11554) is vertically fixed between the center shaft (11551) and the fixed shell (11555).

3. The bare tube oil cooler with improved heat dissipation through turbulent flow of claim 1, wherein: the oil pipe stabilizer (14) is composed of a fixed base plate (141), a pipe clamp (142) and outer fin plates (143), wherein the fixed base plate (141) is vertically welded to the bottom of the pipe clamp (142), and the outer fin plates (143) are provided with six groups and are evenly fixed on the left side and the right side of the pipe clamp (142).