CN201620927U

CN201620927U - Heat exchange pipe for lubricating oil cooler

Info

Publication number: CN201620927U
Application number: CN200920286238XU
Authority: CN
Inventors: 缪兰
Original assignee: NANTONG CSEMC MACHINERY MANUFACTURE CO Ltd
Current assignee: NANTONG CSEMC MACHINERY MANUFACTURE CO Ltd
Priority date: 2009-12-25
Filing date: 2009-12-25
Publication date: 2010-11-03
Anticipated expiration: 2019-12-25

Abstract

The utility model relates to a heat exchange pipe for a lubricating oil cooler, which comprises a lubricating oil cooler body. The utility model is characterized in that the heat exchange pipe of a radiation fin group is arranged in the lubricating oil cooler body, wherein the pipe body surface of the heat exchange pipe is in sheathing hoop type expansion joint arrangement, and the heat exchange pipe consists of ring-shaped radiation fins. The utility model has the technical scheme that the heat exchange pipe provided with the radiation fin group is adopted for replacing the single-form light pipe in the prior art, the surface shape improvement of the heat exchange pipe promotes the turbulent motion acceleration of fluid, the heat transmission coefficient value is increased, the effective heat exchange area is increased, and the heat transmission speed is high. In addition, under the same use work conditions, when a heat transmission pipe of the expansion joint radiation fins is used as a heat exchange element of the lubricating oil cooler, the size of a heat exchanger can be greatly reduced, the structure is compact, and in addition, the material consumption can be reduced to reach the effects of efficiency increase and cost saving.

Description

A kind of lube oil cooler heat exchanging tube

Technical field

Heating, cooling and the control temperature that the utility model relates to a kind of lubricant oil/agent makes the lubricating fitting field that motor is easy to start, relate in particular to a kind of cutting oil that is used for, take away the heat exchanging tube of lube oil cooler of the heat of bearing and gear, be applied to the oily machine of boats and ships vapour (bavin).

Background technique

At present, various motors all adopt lubricant oil to be used for the seal compression chamber and to reduce piston wear and friction as oiling agent.Warm, the reduction oil body of oil of lubricant oil but the friction of the generation of working for a long time and the heat that compression produces can raise.If it is too high that oily temperature becomes, the viscosity of reduction can make the protectiveness oil film that plays protection and seal action become very thin.The result causes the movable part wearing and tearing to increase, and the efficient of machine reduces, and the time limit in working life of lubricant oil can reduce.In order to guarantee that unit safety moves reliably.Must be within the limits prescribed oily temperature control, reduce pressure drop to greatest extent and, could effectively remove the waste heat in the lubricant oil the influence in weight and space.Regulate the temperature of lubricant oil so must use this equipment of lube oil cooler (or claiming oil cooler).

Lube oil cooler is widely used in departments such as ship, metallurgy, chemical industry, mine, light industry and heavy industry as a kind of oil cooling apparatus that generally uses.Especially in ship, lube oil cooler is as a kind of key equipment that refrigerating function can be provided for the engine oil (lubricant oil) of the oily machine of boats and ships vapour (bavin), ensure the normal operation of power equipment, mainly found expression in the lubricant oil cooling of hull equipment, the lubricant oil cooling of speed variator system, the lubricant oil cooling of transformer etc.

And the light pipe formula lube oil cooler that is most widely used at present, there is following shortcoming in the heat exchanging tube of one of its key components and parts:

1. effective heat exchange area is little;

2. it is slow to conduct heat;

3. volume is bigger, is inconvenient to clean;

4. being not suitable for narrow and small place installs.

In the above-mentioned defective 3 and 4 can solve by the concrete structure that changes lube oil cooler, but its major defect 1 and 2 is because the defective of light pipe itself, be difficult to solve always, gently then reduce unit operation efficient, heavy then leak, accidents such as internal combustion are so now need a kind of novel lube oil cooler heat exchanging tube, replace the light pipe under the prior art, this heat exchanging tube can improve heat exchange area and heat transfer rate effectively.

The model utility content

For little and slow these defectives of conducting heat of effective heat exchange area that solve the light pipe formula lube oil cooler existence under the prior art, the utility model provides a kind of lube oil cooler heat exchanging tube, the heat exchanging tube that surperficial expanded joint is provided with groups of fins replaces the light pipe of the single formula under the prior art, not only can enlarge effective heat transfer area of heat exchanger, and heat transfer rate is fast, and concrete structure of the present utility model is as described below:

A kind of lube oil cooler heat exchanging tube comprises the lube oil cooler body, it is characterized in that:

In the described lube oil cooler body heat-exchanging element is installed;

Described heat-exchanging element is specially the heat exchanging tube that a pipe shaft surface is provided with the groups of fins of being made up of the round radiating fin.

Different with the column light pipe under the prior art, the extra heat dissipation sheet group that is provided with on the heat exchanging tube of the present utility model enlarges effective heat transfer area of whole heat exchanger, and heat transfer rate is fast.

According to a kind of lube oil cooler heat exchanging tube of the present utility model, it is characterized in that, described pipe shaft surface is provided with the heat exchanging tube of the groups of fins of being made up of the round radiating fin, it is specially, cuff formula expanded joint is by the groups of fins of being made up of the round radiating fin on the pipe shaft surface of this heat exchanging tube, wherein, every radiating fin all is provided with perpendicular to the pipe shaft direction of heat exchanging tube.

Cuff formula expanded joint makes combines closely between groups of fins and the heat exchanging tube more, has reached the purpose of fit sealing, firm and safe and reliable, and every radiating fin makes the heat exchange effect further improve all perpendicular to the pipe shaft direction of heat exchanging tube in addition.

According to a kind of lube oil cooler heat exchanging tube of the present utility model, it is characterized in that the coverage area of the cuff formula expanded joint of described groups of fins is less than each 2 ~ 5 centimetres at the pipe shaft two ends of heat exchanging tube.

The expanded joint coverage area is less than each 2 ~ 5 centimetres at the pipe shaft two ends of heat exchanging tube, for future heat exchanging tube be installed on and reserved installing space on the cooler.

According to a kind of lube oil cooler heat exchanging tube of the present utility model, it is characterized in that, the size of the radiating fin of described groups of fins is specially, 0.5 ~ 1 millimeter of the external diameter of the heat exchanging tube of the internal diameter of the radiating fin of every round before greater than expanded joint, the external diameter of radiating fin is greater than 1 ~ 2 millimeter of the internal diameter of radiating fin, the thickness of radiating fin is 0.2 ~ 0.3 millimeter, is spaced apart 1 ~ 2 millimeter between the radiating fin.

0.5 ~ 1 millimeter of the external diameter of the heat exchanging tube of the internal diameter of radiating fin before greater than expanded joint, reserve the expanded joint space, 1 ~ 2 millimeter of the external diameter of the heat exchanging tube behind the big expanded joint of the external diameter of radiating fin, improved radiating effect, all the other installation dimensions of radiating fin, as the thickness of radiating fin and the concrete length of installation of interval between the radiating fin and groups of fins,, promptly can use the heat exchange sheet group of different length and size according to dissimilar heat exchanging tubes by the decision of heat exchanging tube overall length size.

Use the utility model to obtain following beneficial effect:

1. lube oil cooler heat exchanging tube of the present utility model is owing to adopted the light pipe of the single type under the heat exchanging tube replacement prior art that groups of fins is installed, the improvement of its surface configuration, impel Hydrodynamic turbulence to accelerate, improve the heat-transfer coefficient value, improved effective heat exchange area, heat transfer rate is fast.

2. lube oil cooler heat exchanging tube of the present utility model, under identical applying working condition, the heat-transfer pipe of use expanded joint radiating fin can dwindle heat exchanger volume widely as the heat-exchanging element of lube oil cooler, makes compact structure, and can reduce the consumption of material, reach the effect of synergism and reducing expenditure.

Description of drawings

Figure one is the concrete structure schematic representation of the light pipe under the prior art;

Figure two is the concrete structure schematic representation of lube oil cooler of the present utility model with heat exchanging tube;

Figure three is the partial structurtes enlarged diagram of lube oil cooler of the present utility model with the heat exchanging tube that has radiating fin of heat exchanging tube;

Figure four is for using the lube oil cooler concrete structure schematic representation of lube oil cooler of the present utility model with heat exchanging tube.

Among the figure: A-has local amplification place of heat exchanging tube of radiating fin, 1-lube oil cooler body, 2-radiating fin, 3-groups of fins, 4-heat exchanging tube.

Embodiment

Below in conjunction with drawings and Examples lube oil cooler of the present utility model is described further with heat exchanging tube.

Embodiment

At first choose the heat exchanging tube 4 that size is fit to according to the particular type of lube oil cooler, select internal diameter the radiating fin 2 by round more bigger 0.5 ~ 1 millimeter to form groups of fins 3 then than heat exchanging tube external diameter, the thickness of every radiating fin of this groups of fins is 0.2 ~ 0.3 millimeter, is spaced apart 1 ~ 2 millimeter between the radiating fin.Wherein the groups of fins external diameter is slightly larger than the purpose of 0.5 ~ 1 millimeter of heat exchanging tube for reserving the expanded joint space.

Then will carry out the expanded joint formula on heat exchanging tube 4 with groups of fins 3 cuffs is connected, should note herein, every diffusing screening 2 of groups of fins should be perpendicular to the pipe shaft direction expanded joint of heat exchanging tube, this kind expanded joint position mode can improve radiating effect, the external diameter of radiating fin further improves radiating effect greater than 1 ~ 2 millimeter of the internal diameter of radiating fin, should conscientiously check behind the expanded joint of entire heat dissipation sheet group, must not there be defectives such as peeling, wrinkle, crackle at the expanded joint position, checks to finish and can install and use.

Heat exchange pipe for lubricating oil cooler of the present utility model has adopted the heat exchanger tube that groups of fins is installed to replace the light pipe of the single type under the prior art technically, the improvement of its surface configuration impels Hydrodynamic turbulence to accelerate, and improves heat transfer, improved effective heat exchange area, heat transfer rate is fast. The utility model is under identical applying working condition in addition, and the heat-transfer pipe that uses the expanded joint fin can dwindle the volume of heat exchanger widely as the heat exchange element of lube oil cooler, makes compact conformation, and can reduce the consumption of material, reaches the effect of synergism and reducing expenditure.

The utility model is simple in structure, and is easily manufactured, is applicable to the heat exchanger tube field of various lube oil coolers.

Claims

1. a lube oil cooler heat exchanging tube comprises lube oil cooler body (1), it is characterized in that:

In the described lube oil cooler body (1) heat-exchanging element is installed;

Described heat-exchanging element is specially the heat exchanging tube (4) that a pipe shaft surface is provided with the groups of fins of being made up of the radiating fin (2) of round (3).

2. a kind of lube oil cooler heat exchanging tube as claimed in claim 1, it is characterized in that, described pipe shaft surface is provided with the heat exchanging tube (4) of the groups of fins of being made up of the radiating fin (2) of round (3), it is specially, cuff formula expanded joint is by the groups of fins of being made up of the round radiating fin on the pipe shaft surface of this heat exchanging tube, wherein, every radiating fin all is provided with perpendicular to the pipe shaft direction of heat exchanging tube.

3. a kind of lube oil cooler heat exchanging tube as claimed in claim 2 is characterized in that, the coverage area of the cuff formula expanded joint of described groups of fins (3) is less than each 2 ~ 5 centimetres at the pipe shaft two ends of heat exchanging tube (4).

4. a kind of lube oil cooler heat exchanging tube as claimed in claim 1, it is characterized in that, the size of the radiating fin (2) of described groups of fins (3) is specially, 0.5 ~ 1 millimeter of the external diameter of the heat exchanging tube (4) of the internal diameter of the radiating fin of every round before greater than expanded joint, the external diameter of radiating fin is greater than 1 ~ 2 millimeter of the internal diameter of radiating fin, the thickness of radiating fin is 0.2 ~ 0.3 millimeter, is spaced apart 1 ~ 2 millimeter between the radiating fin.