CN217716044U - High-efficiency low-resistance serial-plate type oil cooler - Google Patents

Abstract

The utility model provides a high-efficient low resistance cluster piece formula oil cooler relates to cooler technical field, including casing and fin, the fin is equipped with a plurality of, every the fin is installed respectively in the inside of casing, every run through respectively in the fin and install a plurality of cooling tubes, the return stroke end cover is installed to the upper end of casing, the business turn over end cover is installed to the lower extreme of casing, the upper end one side of casing is run through and is installed into oil pipe, the lower extreme of casing is kept away from one side of advancing oil pipe and is run through and install out oil pipe. The utility model discloses in this device adopt string piece formula heat transfer surface to compare the increase of traditional light pipe bundle extension surface area to a slice multitubular structure that this device adopted, if a root canal blockked up, the fin side still links to be whole, still can exert the effect of heat conduction, requires to design lower oil flow rate according to the heat transfer, reduces baffle quantity, and its circulation resistance is controllable to be much less than light pipe bundle, and the heat transfer effect is not poor.

Description

High-efficiency low-resistance serial-plate type oil cooler

Technical Field

The utility model relates to a cooler technical field particularly, relates to high-efficient low resistance cluster piece formula oil cooler.

Background

The bearing bush of the hydropower station needs to be lubricated and cooled by circulating turbine oil, the running temperature of the bearing bush is limited by the used material, and the running reliability of the bearing bush is directly related to the running safety and reliability of the hydropower station; after the oil absorbs heat, the heat needs to be transferred out in time to maintain normal oil temperature. Oil coolers use water to cool the oil. Generally, an oil cooler is arranged on an upper guide bearing, a thrust bearing, a lower guide bearing and a water guide bearing of the hydropower station.

For the heat exchange of oil and water, because the oil is a poor thermal conductor and is used as the thermal resistance control side of an oil cooler, the oil side of the oil cooler is generally required to be strengthened, so that the heat exchanger can be compact and efficient, the water consumption is low, and the product manufacturing and operation are economic and reliable.

In addition, because more cooling oil circulation of the power station bearing system is not provided with an additional circulating oil pump, the number of oil pump pipelines can be reduced, so that additional equipment cost and additional power consumption are avoided, and the shutdown caused by oil pump faults is avoided. Therefore, the oil system is relatively simple, no special manpower is needed for maintenance, and the power station operation and maintenance personnel are very popular.

The existing circulating oil is cooled, an early light tube bundle is adopted, and raw materials are easy to obtain; but it is bulky, not compact and not efficient. The structure of the composite finned tube is also that a threaded tube is adopted, a finned tube is wound, and the structure of the composite finned tube is adopted, but each tube is independent, and if one tube is blocked by leakage, the tube is wasted.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides high-efficient low resistance cluster piece formula oil cooler can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

high-efficient low resistance cluster piece formula oil cooler, including casing and fin, the fin is equipped with a plurality of, every the inside at the casing is installed respectively to the fin, every run through respectively in the fin and install a plurality of cooling tubes, the return stroke end cover is installed to the upper end of casing, the business turn over end cover is installed to the lower extreme of casing, the upper end one side of casing is run through and is installed into oil pipe, the lower extreme of casing is kept away from one side of advancing oil pipe and is run through and install out oil pipe.

Preferably, a plurality of positioning holes penetrate through the upper surface of each fin, the positioning holes are vertically overlapped, and cooling pipes are mounted inside the vertically overlapped positioning holes.

Preferably, a return end cover sealing ring is arranged between the return end cover and the shell.

Preferably, a plurality of fastening pieces are movably arranged between the inlet end cover and the outlet end cover and the shell in a penetrating mode through threads respectively, and nuts are arranged at the upper end and the lower end of each fastening piece through threads respectively.

Preferably, an inlet end cover gasket and an outlet end cover gasket are arranged between the inlet end cover and the outlet end cover and the shell, a plurality of through holes are formed in the lower surface of the inlet end cover and the lower surface of the outlet end cover, and the through holes are relatively parallel.

Preferably, the oil inlet pipe and the oil outlet pipe are respectively provided with a flange at one end far away from the shell, the opposite surfaces of the upper end and the lower end of the shell are respectively provided with a fixed support, and each fixed support is vertically parallel to the other fixed support.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) The utility model discloses in this device adopt string piece formula heat transfer surface to compare the increase of traditional light pipe bundle extension surface area to a slice multitubular structure that this device adopted, if a root canal blockked up, the fin side still links to be whole, still can exert the effect of heat conduction, requires to design lower oil flow rate according to the heat transfer, reduces baffle quantity, and its circulation resistance is controllable to be much less than light pipe bundle, and the heat transfer effect is not poor.

(2) The utility model discloses in compact design, less space installation, the transformation of the convenient old power station light tube bank oil cooler of operation maintenance, the supporting of new power station can reduce the operation water yield, operation economy.

Drawings

FIG. 1 is a schematic diagram of the structure of the high-efficiency low-resistance serial plate oil cooler of the present invention in front view;

FIG. 2 is a schematic diagram of a side-view internal structure of the high-efficiency low-resistance serial-plate oil cooler of the present invention;

FIG. 3 is a schematic diagram of the top view structure of the high-efficiency low-resistance serial plate oil cooler of the present invention;

FIG. 4 is a schematic view of the structure of the high-efficiency low-resistance serial plate oil cooler of the present invention;

FIG. 5 is a schematic view of the structure of the fins of the high-efficiency low-resistance serial fin type oil cooler of the present invention;

fig. 6 is a schematic view of the cooling pipe structure of the high-efficiency low-resistance serial-plate oil cooler of the present invention.

In the figure: 1. a housing; 2. a flange; 3. a return end cover; 4. a fin; 401. positioning holes; 5. a cooling tube; 6. a return end cover sealing ring; 7. an inlet end cover and an outlet end cover; 701. a through hole; 8. an inlet and outlet end cap gasket; 9. a fastener; 10. a nut; 11. a fixed bracket; 12. an oil inlet pipe; 13. an oil outlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Examples

As shown in fig. 1-6, the high-efficiency and low-resistance serial fin type oil cooler comprises a shell 1 and fins 4, wherein the fins 4 are provided with a plurality of fins, each fin 4 is respectively installed inside the shell 1, a plurality of cooling pipes 5 are respectively installed in each fin 4 in a penetrating manner, a return end cover 3 is installed at the upper end of the shell 1, an inlet and outlet end cover 7 is installed at the lower end of the shell 1, an oil inlet pipe 12 is installed at one side of the upper end of the shell 1 in a penetrating manner, and an oil outlet pipe 13 is installed at one side of the lower end of the shell 1, which is far away from the oil inlet pipe 12, in a penetrating manner.

When the cooling device is specifically arranged, a plurality of positioning holes 401 penetrate through the upper surface of each fin 4, the positioning holes 401 are vertically overlapped, and the cooling pipes 5 are mounted inside the vertically overlapped positioning holes 401. The staff can come a plurality of fins 4 and the cooling tube 5 of casing 1 inside according to actual conditions to design, make its inside that is applicable to various power stations that can be better to this device adopts a slice multitubular structure, if a root canal blockage, fin 4 side still links as an organic whole, still can play the heat conduction effect.

In the specific setting, a return end cover sealing ring 6 is arranged between the return end cover 3 and the shell 1. Make the leakproofness between return end cover 3 and the casing 1 through return end cover sealing washer 6, avoid producing the seepage scheduling problem, also strengthen the zonulae occludens between return end cover 3 and the casing 1 simultaneously.

When the device is specifically arranged, a plurality of fastening pieces 9 are movably arranged between the inlet and outlet end cover 7 and the shell 1 in a penetrating manner through threads, and nuts 10 are arranged at the upper end and the lower end of each fastening piece 9 through threads. Pass in and out and carry out fixed connection through mutually supporting of fastener 9 and nut 10 between end cover 7 and the casing 1 for be connected more between end cover 7 and the casing 1 and be difficult for separating, also be convenient for later stage staff to its dismantlement when overhauing, more convenient

When the device is specifically arranged, an inlet and outlet end cover gasket 8 is arranged between the inlet and outlet end cover 7 and the shell 1, a plurality of through holes 701 are arranged on the lower surface of the inlet and outlet end cover 7, and the through holes 701 are relatively parallel. The inlet and outlet end cover gasket 8 is used for sealing between the inlet and outlet end cover 7 and the housing 1, and the through hole 701 is used for guiding water flow, so that the water flow enters or flows out of the interior of the housing 1 through the through hole 701, and the convenience is improved.

When specifically setting up, the flange 2 is installed respectively to the one end of keeping away from casing 1 of advancing oil pipe 12 and play oil pipe 13, and fixed bolster 11 is installed respectively to the opposite face at both ends about casing 1, and is parallel from top to bottom between every fixed bolster 11. The oil inlet pipe 12 and the oil outlet pipe 13 are respectively connected with other pipelines through flanges 2, so that workers can conveniently install the oil inlet pipe, and meanwhile, the fixing support 11 is used for installing the device by the workers, so that the device is simpler and more convenient.

The working principle of the high-efficiency low-resistance serial plate type oil cooler is as follows:

when the oil cooler is used, a special fin 4 die is designed and manufactured, and the fin 4 is punched and cut to adapt to a corresponding cylinder to be used as an expansion surface of the oil side of the oil cooler. The heat exchange tubes with different specifications can be selected and matched with different fin elements according to water quality, fins 4 with different fin pitches are designed according to test conditions, the fins 4 are sleeved on the tube bundle, the number/expansion surface of the fins 4 meets design requirements, aluminum foils or copper foils with excellent ductility can be selected as materials of the fins 4 and are adaptive to oil side media, then after the assembly is completed, the fins 4 and the heat exchange tubes are subjected to full expansion joint through a tube expansion process to achieve interference fit, a whole body is formed, the fitting rate of the fins and the tubes is ensured to be greater than 95%, good contact, good heat conduction and good shock resistance are ensured, meanwhile, according to the heat load and the flow, the flow number of the oil side and the water side can be adjusted according to a heat exchange principle during design, and the optimal matching of heat exchange and resistance is achieved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. High-efficient low resistance cluster piece formula oil cooler, including casing (1) and fin (4), fin (4) are equipped with a plurality of, every the inside at casing (1) is installed respectively in fin (4), every run through respectively in fin (4) and install a plurality of cooling tubes (5), its characterized in that: return end cover (3) are installed to the upper end of casing (1), business turn over end cover (7) are installed to the lower extreme of casing (1), the upper end one side of casing (1) is run through and is installed into oil pipe (12), one side that the lower extreme of casing (1) was kept away from into oil pipe (12) is run through and is installed out oil pipe (13).

2. The high-efficiency low-resistance serial plate oil cooler according to claim 1, characterized in that: the upper surface of each fin (4) is provided with a plurality of positioning holes (401) in a penetrating mode, the positioning holes (401) are overlapped up and down, and cooling pipes (5) are installed inside the positioning holes (401) which are overlapped up and down.

3. The high-efficiency low-resistance serial plate oil cooler according to claim 1, characterized in that: and a return end cover sealing ring (6) is arranged between the return end cover (3) and the shell (1).

4. The high-efficiency low-resistance serial plate oil cooler according to claim 1, characterized in that: a plurality of fasteners (9) are movably arranged between the inlet end cover (7) and the outlet end cover (1) in a penetrating mode through threads respectively, and nuts (10) are arranged at the upper end and the lower end of each fastener (9) through threads respectively.

5. The high-efficiency low-resistance serial plate oil cooler according to claim 1, characterized in that: be equipped with business turn over end cover gasket (8) between business turn over end cover (7) and casing (1), the lower surface of business turn over end cover (7) is equipped with a plurality of through-holes (701), every be relatively parallel between through-hole (701).

6. The high-efficiency low-resistance serial plate oil cooler according to claim 1, characterized in that: advance oil pipe (12) and go out oil pipe (13) and keep away from the one end of casing (1) and install flange (2) respectively, fixed bolster (11), every are installed respectively to the opposite face at both ends about casing (1) parallel from top to bottom between fixed bolster (11).

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