CN216384656U

CN216384656U - Air-cooled oil cooler

Info

Publication number: CN216384656U
Application number: CN202123212963.2U
Authority: CN
Inventors: 黄柒辉; 汪晶
Original assignee: Wuxi Woerde Precision Industrial Co ltd
Current assignee: Wuxi Woerde Precision Industrial Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-04-26
Anticipated expiration: 2031-12-20

Abstract

The utility model relates to an air-cooled oil cooler which comprises an oil tank, wherein the oil tank is connected with a first condensation pipe group of an air-cooled condenser, the first condensation pipe group is connected with a first inlet of an evaporator, a first outlet of the evaporator is connected with the oil tank, a second condensation pipe group of the air-cooled condenser is connected with a compressor, the compressor is connected with a second inlet of the evaporator, a second outlet of the evaporator is connected with the other end of the second condensation pipe group of the air-cooled condenser, the air-cooled condenser comprises a cooling fan, a first temperature sensor is connected to a pipeline at the front end of the first inlet of the evaporator, a second temperature sensor is arranged in the oil tank, and the air-cooled oil cooler can meet the oil-cooled operation of high-temperature oil by air-cooled precooling and matching with a refrigerating system and has the advantage of energy conservation.

Description

Air-cooled oil cooler

Technical Field

The utility model relates to heat exchange equipment, in particular to an air-cooled oil cooler.

Background

The oil cooler is based on the principle of a refrigeration system, low-temperature and low-pressure liquid refrigerant and surrounding water are subjected to heat exchange in an evaporator to absorb heat of oil, the oil is evaporated into low-temperature and low-pressure gas, the temperature of the refrigerant is unchanged in the evaporation process, the low-temperature and low-pressure gas refrigerant enters a compressor, is compressed by the compressor, is compressed into high-temperature and high-pressure gas, then enters a condenser, is subjected to heat exchange with indoor medium in the condenser, part of heat of the high-temperature and high-pressure gas is absorbed by the medium, the temperature of the medium rises, the heat of the refrigerant is released to be changed into high-temperature and high-pressure liquid, the temperature of the condenser is unchanged in the process, then enters an expansion valve for throttling, the throttling is a rapid cooling process, the refrigerant is changed into the low-temperature and low-pressure liquid, the refrigerant enters the evaporator for heat exchange and evaporation after the process, the whole process of the refrigeration system is realized, and the circulation is carried out continuously, the oil can be continuously refrigerated, and the traditional oil cooling machine has the following problems: 1. when the temperature in the oil tank is high, the temperature of oil entering the evaporator is too high, so that the heat exchange effect is not ideal; 2. the traditional oil cooler has higher energy consumption.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings in the prior art, it is an object of the present invention to provide an air-cooled oil cooler to solve one or more problems of the prior art.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the utility model provides an air-cooled oil cooler, includes the oil tank, the first condenser bank of tubes of air-cooled condenser is connected to the oil tank, the first import of first condenser bank of tubes connection evaporimeter, the first exit linkage oil tank of evaporimeter, the second condenser bank of tubes connection compressor of air-cooled condenser, the compressor is connected the second import of evaporimeter, the second exit linkage of evaporimeter the second condenser bank of tubes other end of air-cooled condenser, air-cooled condenser includes cooling fan, connect first temperature sensor on the pipeline of the first import front end of evaporimeter, set up second temperature sensor in the oil tank.

As a further improvement of the above technical solution:

and an oil supply pump is connected on a pipeline between the oil tank and the first condensation pipe group.

And a pipeline between the oil tank and the first condensation pipe group is also connected with a return branch pipe.

And an expansion valve and a drying filter are connected on a pipeline between the second outlet of the evaporator and the second condensation pipe group.

And a high-pressure sensor and an exhaust temperature sensor are arranged on a pipeline between the second condensation pipe group and the compressor.

And a low-pressure sensor is connected to a pipeline between the compressor and the second inlet of the evaporator.

Compared with the prior art, the utility model has the following beneficial technical effects:

1) when the temperature of oil entering the evaporator is detected to be too high, the oil in the oil tank passes through the first condensation pipe group and is matched with the air-cooled condenser to pre-cool the oil temperature, the temperature is reduced to a proper temperature, and then the oil enters the evaporator to exchange heat, so that the heat exchange effect is improved;

2) when the temperature is lower in transition seasons and winter, if the oil temperature is not high, the oil in the oil tank passes through the first condensation pipe group to be matched with the air-cooled condenser for air cooling, and when the air cooling cannot meet the cooling requirement, the refrigerating system is started again, so that the starting frequency of the refrigerating system is reduced, and the energy-saving effect is achieved;

3) a backflow branch pipe is arranged, so that oil can flow back to the oil tank when the engine is stopped;

4) and a drying filter is arranged to filter impurities in the oil.

Drawings

Fig. 1 shows a schematic structural diagram of an air-cooled oil cooler according to the present embodiment.

In the drawings, the reference numbers:

1. an oil tank; 101. a second temperature sensor; 2. an air-cooled condenser; 21. a first bank of condenser tubes; 22. a second bank of condensing tubes; 23. a cooling fan; 3. an evaporator; 4. a compressor; 5. a first temperature sensor; 6. an oil supply pump; 7. a return branch pipe; 8. an expansion valve; 9. drying the filter; 10. a high pressure sensor; 11. an exhaust gas temperature sensor; 12. a low pressure sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.

As shown in fig. 1, the air-cooled oil cooler of the present embodiment includes an oil tank 1, a first condensation tube group 21 connected to an air-cooled condenser 2 in the oil tank 1, an oil supply pump 6 connected to a pipe between the oil tank 1 and the first condensation tube group 21, the first condensation tube group 21 connected to a first inlet of an evaporator 3, a first outlet of the evaporator 3 connected to the oil tank 1, a second condensation tube group 22 connected to a compressor 4 in the air-cooled condenser 2, a high pressure sensor 10 and an exhaust temperature sensor 11 provided on a pipe between the second condensation tube group 22 and the compressor 4, the compressor 4 connected to a second inlet of the evaporator 3, a low pressure sensor 12 connected to a pipe between the compressor 4 and the second inlet of the evaporator 3, a second outlet of the evaporator 3 connected to the other end of the second condensation tube group 22 of the air-cooled condenser 2, an expansion valve 8 and a drying filter 9 connected to a pipe between the second outlet of the evaporator 3 and the second condensation tube group 22, the air-cooled condenser 2 comprises a cooling fan 23, a first temperature sensor 5 is connected to a pipeline at the front end of a first inlet of the evaporator 3, and a second temperature sensor 101 is arranged in the oil tank 1.

The pipe between the oil tank 1 and the first condensation tube group 21 is also connected with a return branch pipe 7, and when the oil cooling machine is stopped, the internal oil can return to the oil tank 1.

When the air-cooled oil cooler of the embodiment is used, the oil temperature in the oil tank 1 can be detected according to the second temperature sensor 101 in the oil tank 1, when the temperature in the oil tank 1 is higher than a set value T1, the cooling fan 23 of the air-cooled condenser 2 can be started, the oil supply pump 6 is started at the same time, the oil in the oil tank 1 is sent into the first condensation pipe group 21, air cooling operation is carried out, the oil temperature is reduced, and after the oil temperature is reduced, the oil temperature after air cooling is continuously detected through the first temperature sensor 5; if the oil temperature is lower than a set value T2, at the moment, air cooling can meet the cooling requirement of the oil, a refrigeration system is not required to be started, the oil only passes through the evaporator 3, does not perform heat exchange operation in the evaporator 3, and flows back to the oil tank 1 after passing through the evaporator 3; if the first temperature sensor 5 detects that the oil temperature is higher than the set value T2, at this time, the pure air cooling cannot meet the cooling requirement of the oil, at this time, the refrigeration system needs to be started, the refrigerant and the oil enter the evaporator 3 for heat exchange, the oil temperature is further cooled and reduced until the temperature detected by the first temperature sensor 5 is lower than the set value T2, the refrigeration system is stopped, and when the second temperature sensor 101 detects that the oil temperature in the oil tank 1 is lower than the set value T1, the oil supply pump 6 and the cooling fan 23 are turned off, and the oil cooling operation is stopped.

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 above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several polygons and modifications can be made without departing from the inventive concept, and these shall all fall within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides an air-cooled oil cooler which characterized in that: the oil tank is connected with a first condensation pipe group of the air-cooled condenser, the first condensation pipe group is connected with a first inlet of the evaporator, a first outlet of the evaporator is connected with the oil tank, a second condensation pipe group of the air-cooled condenser is connected with a compressor, the compressor is connected with a second inlet of the evaporator, a second outlet of the evaporator is connected with a second condensation pipe group of the air-cooled condenser, the air-cooled condenser comprises a cooling fan, a first temperature sensor is connected to a pipeline at the front end of the first inlet of the evaporator, and a second temperature sensor is arranged in the oil tank.

2. The air-cooled oil chiller according to claim 1 wherein: and an oil supply pump is connected on a pipeline between the oil tank and the first condensation pipe group.

3. The air-cooled oil chiller according to claim 1 wherein: and a pipeline between the oil tank and the first condensation pipe group is also connected with a return branch pipe.

4. The air-cooled oil chiller according to claim 1 wherein: and an expansion valve and a drying filter are connected on a pipeline between the second outlet of the evaporator and the second condensation pipe group.

5. The air-cooled oil chiller according to claim 1 wherein: and a high-pressure sensor and an exhaust temperature sensor are arranged on a pipeline between the second condensation pipe group and the compressor.

6. The air-cooled oil chiller according to claim 1 wherein: and a low-pressure sensor is connected to a pipeline between the compressor and the second inlet of the evaporator.