Efficient heat exchange type lubricating oil cooler

Abstract

The utility model discloses an efficient heat exchange type lubricating oil cooler which comprises a shell, end covers are fixedly connected to the two ends of the shell, an oil inlet and an oil outlet are formed in the two end covers respectively, a cooling medium inlet and a cooling medium outlet are formed in the shell, and a heat exchange assembly is arranged in the shell and comprises a first fixing plate and a second fixing plate. The first fixing plate and the second fixing plate are fixedly connected into the shell, the cooling medium inlet and the cooling medium outlet are both located between the first fixing plate and the second fixing plate, a heat exchange cavity is formed between the first fixing plate and the second fixing plate, a plurality of heat exchange pipes are fixedly connected to the first fixing plate and the second fixing plate, and spiral protrusions are arranged on the inner walls of the heat exchange pipes. And a plurality of fins are fixedly connected to the heat exchange tube. According to the utility model, the heat exchange efficiency between the lubricating oil and the cooling medium is improved, the temperature of the lubricating oil can be quickly and effectively reduced, and mechanical equipment is ensured to stably operate at a proper oil temperature.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cooler, in particular to a high -efficient heat transfer formula lubricating oil cooler. BACKGROUND

[0002] In many mechanical equipment such as industrial engine, large compressor and various transmission devices, the temperature of lubricating oil will rise due to absorbing the heat generated by the friction of mechanical parts during operation. High oil temperature can cause the viscosity of lubricating oil to decrease, reduce its lubricating performance, increase the wear of mechanical parts, and even cause equipment failure, affecting the normal production.

[0003] Traditional lubricating oil coolers, such as shell and tube coolers, have limited heat exchange efficiency. The internal heat exchange structure design is relatively simple, the contact area between lubricating oil and cooling medium is insufficient, and heat transfer is not sufficient enough to meet the requirements of some high oil temperature control devices. In addition, some coolers have complex structure, large volume, inconvenient installation and maintenance, and are prone to cooling medium leakage and other failures, increasing the operation cost and maintenance difficulty of the equipment.

[0004] Therefore, a high-efficiency heat exchange type lubricating oil cooler is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of high-efficiency heat exchange type lubricating oil cooler, to solve the problems existing in the prior art, improve heat exchange efficiency, optimize structure, make it have the advantages of compact, easy to install and maintain.

[0006] To achieve the above purpose, the utility model provides the following scheme: the utility model provides a kind of high-efficiency heat exchange type lubricating oil cooler, comprising:

[0007] The shell is fixedly connected with end covers at both ends, oil inlet and oil outlet are respectively arranged on the two end covers, cooling medium inlet and cooling medium outlet are arranged on the shell, heat exchange assembly is arranged in the shell, the heat exchange assembly comprises fixed plate one and fixed plate two, the fixed plate one and the fixed plate two are fixedly connected in the shell, the cooling medium inlet and the cooling medium outlet are located between the fixed plate one and the fixed plate two, the heat exchange cavity is formed between the fixed plate one and the fixed plate two, a plurality of heat exchange pipes are fixedly connected on the fixed plate one and the fixed plate two, cavity one is formed between the fixed plate one and the oil inlet, cavity two is formed between the fixed plate two and the oil outlet, the heat exchange pipe is communicated with cavity one and cavity two, the inner wall of the heat exchange pipe has spiral protrusions, a plurality of fins are fixedly connected on the heat exchange pipe, a plurality of the fins are divided into upper and lower rows, the upper row of fins and the lower row of fins are staggered.

[0008] The utility model discloses the following technical effects:

[0009] High heat exchange efficiency: through the unique heat exchange pipe and fin design, the heat exchange efficiency between lubricating oil and cooling medium is improved significantly, can reduce the temperature of lubricating oil fast and effectively, guarantees mechanical equipment steady operation under suitable oil temperature.

[0010] Compact structure: compared with traditional cooler, the utility model discloses high -efficient heat exchange while structure is more compact, and the space is smaller, and it is convenient to install in various space limited mechanical equipment.

[0011] Easy maintenance: the design of end cover is convenient to disassemble, and the heat exchange component in the cooler is checked, washed and repaired, and the maintenance cost and downtime of equipment are reduced.

[0012] High reliability: the shell is made of high-strength corrosion-resistant material, and the overall reliability and service life of the cooler are improved by optimizing the structure design, the number of equipment downtime caused by cooler failure is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the drawings needed in the embodiment will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating labor intensity.

[0014] Figure 1 It is high -efficient heat exchange formula lubricating oil cooler structure diagram of the utility model;

[0015] Figure 2 It is sectional view of the utility model;

[0016] Figure 3 It is heat exchange pipe and fin structure diagram of the utility model;

[0017] Figure 4 It is heat exchange pipe local diagram of the utility model;

[0018] Figure 5 It is Figure 4 It is enlarged diagram of a place in the middle;

[0019] 1, shell;2, end cover;3, oil inlet;4, oil outlet;5, cooling medium inlet;6, cooling medium outlet;7, fixed plate one;8, fixed plate two;9, heat exchange pipe;10, spiral convex;11, fin. DETAILED DESCRIPTION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more apparent, obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0022] With reference to Figures 1-5 The present application provides a kind of high efficiency heat exchange type lubricating oil cooler, comprising:

[0023] Shell 1, the both ends of shell 1 are fixedly connected with end cover 2, oil inlet 3 and oil outlet 4 are respectively arranged on two end covers 2, cooling medium inlet 5 and cooling medium outlet 6 are arranged on shell 1, heat exchange assembly is arranged in shell 1, heat exchange assembly includes fixed plate one 7 and fixed plate two 8, fixed plate one 7 and fixed plate two 8 are fixedly connected in shell 1, cooling medium inlet 5 and cooling medium outlet 6 are located between fixed plate one 7 and fixed plate two 8, heat exchange cavity is formed between fixed plate one 7 and fixed plate two 8, a plurality of heat exchange pipes 9 are fixedly connected on fixed plate one 7 and fixed plate two 8, fixed plate one 7 and oil inlet 3 are empty cavity one, fixed plate two 8 and oil outlet 4 are empty cavity two, heat exchange pipe 9 is communicated with empty cavity one and empty cavity two, the inner wall of heat exchange pipe 9 has spiral protrusion 10, a plurality of fins 11 are fixedly connected on heat exchange pipe 9, a plurality of fins 11 are divided into upper and lower rows, upper row of fins 11 and lower row of fins 11 are staggered.

[0024] In the device, heat exchange pipe 9 adopts thin-wall design to increase heat exchange area, and metal material with excellent heat conductivity, such as copper alloy, is selected to improve heat conduction efficiency. The inner wall of heat exchange pipe 9 is designed with spiral protrusion 10 lines, which can promote the lubricating oil to form a turbulent state when flowing in the heat exchange pipe 9, enhance the heat transfer between the lubricating oil and the pipe wall of heat exchange pipe 9, break the thermal resistance boundary layer under the traditional laminar flow state, and thus improve the heat exchange effect.

[0025] Cooling medium enters from cooling medium inlet 5, flows in heat exchange cavity, exchanges heat with lubricating oil in heat exchange pipe 9, and then flows out from cooling medium outlet 6. By reasonably designing the flow path and flow rate of the cooling medium, it is ensured that the cooling medium can uniformly absorb heat, avoiding the phenomenon of local overheating or supercooling.

[0026] The lubricating oil flows in from the oil inlet 3, then enters the heat exchange pipe, and after completing heat exchange in the heat exchange pipe 9, flows out from the oil outlet 4 and returns to the mechanical equipment.

[0027] The cooler is provided with end covers 2 at two ends respectively, the end covers 2 are tightly connected with the shell 1 and play the roles of sealing and supporting.

[0028] The fins 11 are designed to be thin and wide, so that the contact area of the cooling medium and the heat exchange pipe 9 is increased.

[0029] When the high-temperature lubricating oil flows in from the oil inlet 3, it enters the heat exchange pipe 9.

[0030] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application.

[0031] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art should fall within the protection scope of the present application.

Claims

1. A high efficiency heat exchange type lubricating oil cooler characterized by, The utility model relates to a heat exchange device for oil cooling, comprising: A shell (1) is fixedly connected with end cover (2) at both ends, and oil inlet (3) and oil outlet (4) are set up on two end covers (2) respectively, cooling medium inlet (5) and cooling medium outlet (6) are set up on the shell (1), heat exchange subassembly is arranged in the shell (1), the heat exchange subassembly includes fixed plate one (7) and fixed plate two (8), fixed plate one (7) and fixed plate two (8) are fixedly connected in the shell (1), cooling medium inlet (5) and cooling medium outlet (6) are located between fixed plate one (7) and fixed plate two (8), and heat exchange cavity is formed between fixed plate one (7) and fixed plate two (8), a plurality of heat exchange pipes (9) are fixedly connected on fixed plate one (7) and fixed plate two (8), cavity one is between fixed plate one (7) and oil inlet (3), cavity two is between fixed plate two (8) and oil outlet (4), heat exchange pipe (9) is communicated with cavity one and cavity two, the inner wall of heat exchange pipe (9) has helical protrusion (10), a plurality of fins (11) are fixedly connected on heat exchange pipe (9), a plurality of fins (11) are divided into upper and lower rows and are arranged, and upper row of fins (11) and lower row of fins (11) are staggered arrangement.

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