Refrigerating system with spray oil cooling function

Abstract

The utility model discloses a refrigerating system with a spraying oil cooling function. The system comprises a spraying oil cooling unit, a cooling unit and a refrigerating unit. The first output end of the refrigerating unit is connected with the first input end of the spraying oil cooling unit, and the second output end of the refrigerating unit is connected with the input end of the cooling unit; the first output end of the cooling unit is connected with the first input end of the refrigerating unit, and the second output end of the cooling unit is connected with the second input end of the spraying oil cooling unit; the output end of the spraying oil cooling unit is connected with the second input end of the refrigerating unit. The refrigerating unit can be cooled through the spraying oil cooling unit and the cooling unit, thermal damage to the refrigerating unit is avoided, the stability and safety of the refrigerating system are improved, and the refrigerating system can be widely applied to the technical field of refrigerating systems.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration systems, in particular to a refrigeration system with spray oil cooling. BACKGROUND

[0002] The refrigeration oil of the refrigeration unit in the refrigeration system plays a crucial role in the operation of the refrigeration host, and the main functions include lubrication, sealing, cooling and noise reduction. The normal performance of these functions depends on the control of the oil temperature, which is crucial for the normal operation and prolonging the service life of the refrigeration system.

[0003] Excessive or insufficient temperature of the refrigeration oil can lead to decreased lubrication effect, increased friction and wear, and even cause thermal damage to the internal part of the refrigeration unit, thereby affecting the normal operation of the refrigeration system. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the embodiments of the present application is to provide a refrigeration system with spray oil cooling, which can cool the refrigeration unit through the cooling unit and the spray oil cooling unit, avoid thermal damage to the refrigeration unit, and improve the stability and safety of the refrigeration system.

[0005] The embodiments of the present application provide a refrigeration system with spray oil cooling, which comprises a spray oil cooling unit, a cooling unit and a refrigeration unit.

[0006] The first output end of the refrigeration unit is connected with the first input end of the spray oil cooling unit, and the second output end of the refrigeration unit is connected with the input end of the cooling unit.

[0007] The first output end of the cooling unit is connected with the first input end of the refrigeration unit, and the second output end of the cooling unit is connected with the second input end of the spray oil cooling unit.

[0008] The output end of the spray oil cooling unit is connected with the second input end of the refrigeration unit.

[0009] In some embodiments, the cooling unit comprises a cooling pump, a cooling tower, a first shunt pipeline and a second shunt pipeline.

[0010] The input end of the cooling pump is connected with the output end of the cooling tower, the output end of the cooling pump is connected with the second input end of the condenser through the first shunt pipeline, and the output end of the cooling pump is connected with the first input end of the spray oil cooling unit through the second shunt pipeline.

[0011] The first output end of the condenser is connected with the input end of the cooling tower.

[0012] In some embodiments, the refrigeration unit comprises an evaporator, a compressor, a condenser and a throttling mechanism;

[0013] An output end of the evaporator is connected with a first input end of the compressor, a first output end of the compressor is connected with a first input end of the condenser, and a second output end of the condenser is connected with an input end of the evaporator through the throttling mechanism;

[0014] A second input end of the condenser is connected with an output end of the cooling unit through the first shunt pipeline.

[0015] In some embodiments, the spray oil cooling unit comprises a spraying mechanism and a heat exchanger;

[0016] An output end of the cooling unit is connected with an input end of the spraying mechanism through the second shunt pipeline, and the spraying mechanism is arranged above or beside the heat exchanger;

[0017] An input end of the heat exchanger is connected with a second output end of the compressor through a first return pipeline, and an output end of the heat exchanger is connected with a second input end of the compressor through a second return pipeline.

[0018] In some embodiments, the spray oil cooling unit further comprises a first electric valve, a second electric valve and a heat dissipation device;

[0019] The first electric valve is arranged in the second shunt pipeline, and the second electric valve is arranged in the first return pipeline;

[0020] The heat dissipation device is arranged above or beside the heat exchanger.

[0021] In some embodiments, the heat dissipation device is a heat dissipation fan.

[0022] In some embodiments, the condenser is a water-cooled heat exchanger.

[0023] The embodiments of the present application have at least the following beneficial effects: the spray oil cooling refrigeration system provided by the present application comprises a spray oil cooling unit, a cooling unit and a refrigeration unit, wherein a first output end of the refrigeration unit is connected with a first input end of the spray oil cooling unit, a second output end of the refrigeration unit is connected with an input end of the cooling unit, a first output end of the cooling unit is connected with a first input end of the refrigeration unit, a second output end of the cooling unit is connected with a second input end of the spray oil cooling unit, and an output end of the spray oil cooling unit is connected with a second input end of the refrigeration unit. The present application can cool the refrigeration unit through the cooling unit and the spray oil cooling unit, avoid thermal damage of the refrigeration unit, and improve the stability and safety of the refrigeration system. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic diagram of a refrigeration system with spray oil cooling provided by an embodiment of the present application;

[0025] Figure 2 is another structural schematic diagram of a refrigeration system with spray oil cooling provided by an embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. When the following description refers to the accompanying drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the present application. They are only examples of devices and methods consistent with some aspects of the embodiments of the present application as detailed in the appended claims.

[0027] It can be understood that the terms "first", "second", and the like used in the present application can be used herein to describe various concepts, but unless otherwise specified, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another. For example, without departing from the scope of the embodiments of the present application, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information. Depending on the context, the word "if" as used herein can be interpreted as "when" or "when" or "in response to determining".

[0028] The terms "at least one", "multiple", "each", "any" and the like used in the present application include one, two or more than two, multiple includes two or more than two, each refers to each of the corresponding multiple, and any refers to any one of the multiple.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art to which the present application belongs. The terms used herein are only for the purpose of describing the embodiments of the present application and are not intended to limit the present application.

[0030] At present, the temperature range of the compressor oil is usually between 40°C and 70°C. This temperature range ensures that the viscosity of the compressor oil remains at an appropriate level, thereby effectively lubricating the various components of the compressor and preventing overheating and wear. The existing cooling methods have the following disadvantages:

[0031] (1) The air cooling mode needs to use a fan and other power equipment to make air flow, which consumes electric power and has poor heat exchange performance of the heat sink, and the air cooling effect is not good. In the case of extremely unfavorable environmental temperature, the oil temperature cannot be guaranteed within the optimal temperature range of 40-70℃.

[0032] (2) The water cooling mode needs power equipment to make water flow, which consumes electric power, although the effect is better than the air cooling mode.

[0033] (3) The fluorine refrigerant in the condenser flows into the oil cooler to exchange heat with the compressor oil by using the pressure difference between the condenser and the oil cooler, but using fluorine refrigerant to cool reduces the energy efficiency of the refrigeration host.

[0034] Therefore, the embodiments of the present application provide a refrigeration system with spray oil cooling. The cooling water is sprayed by using the pressure difference in the pipeline, the heat exchanger is used to strengthen the heat exchange and cooling effect of the compressor oil, the power equipment provides the atomization pressure of the cooling water, avoids the energy consumption of the power equipment, and greatly improves the heat exchange and cooling effect of the compressor oil.

[0035] Referring to Figure 1 , Figure 1 is an optional structural schematic diagram of a refrigeration system with spray oil cooling provided by the embodiments of the present application. The system can include, but is not limited to, a spray oil cooling unit, a cooling unit, and a refrigeration unit. The first output end of the refrigeration unit is connected to the first input end of the spray oil cooling unit, the second output end of the refrigeration unit is connected to the input end of the cooling unit, the first output end of the cooling unit is connected to the first input end of the refrigeration unit, the second output end of the cooling unit is connected to the second input end of the spray oil cooling unit, and the output end of the spray oil cooling unit is connected to the second input end of the refrigeration unit.

[0036] Referring to Figure 2 , Figure 2is another optional schematic diagram of a refrigeration system with spray oil cooling provided by an embodiment of the present application, the refrigeration unit includes a cooling pump 101 and a cooling tower 102, an evaporator 103, a compressor 104, a condenser 105 and a throttling mechanism 106, the spray oil cooling unit includes a spray mechanism 107, a heat exchanger 108, a first electric valve 109, a second electric valve 110 and a heat dissipation device 111, wherein the input end of the cooling pump 101 is connected with the output end of the cooling pump 102, the output end of the cooling pump 101 is connected with the second input end of the condenser 105 through a first shunt pipeline, the output end of the cooling pump 101 is connected with the first input end of the spray oil cooling unit through a second shunt pipeline, the first output end (such as the second output end of the refrigeration unit described above) of the condenser 105 is connected with the input end (such as the input end of the cooling unit described above) of the cooling tower 102, the output end of the evaporator 103 is connected with the first input end of the compressor 104, the first output end of the compressor 104 is connected with the first input end of the condenser 105, and the second output end of the condenser 105 is connected with the input end of the evaporator 103 through the throttling mechanism 106; the second input end (such as the first input end of the refrigeration unit described above) of the condenser 105 is connected with the output end of the cooling pump 101 through the first shunt pipeline (such as the first output end of the cooling unit described above), the input end (such as the second input end of the spray oil cooling unit described above) of the spray mechanism 107 is connected with the output end of the cooling pump 101 through the second shunt pipeline (such as the second output end of the cooling unit described above), and the spray mechanism 107 is arranged above or on the side of the heat exchanger 108; the input end (such as the first input end of the spray oil cooling unit described above) of the heat exchanger 108 is connected with the second output end (such as the first output end of the refrigeration unit described above) of the compressor 104 through a first return pipeline, the output end (such as the output end of the spray oil cooling unit described above) of the heat exchanger 108 is connected with the second input end (such as the second input end of the refrigeration unit described above) of the compressor 104 through a second return pipeline, the first electric valve 109 is arranged in the second shunt pipeline, the second electric valve 110 is arranged in the first return pipeline, and the heat dissipation device 111 is arranged above or on the side of the heat exchanger 108.

[0037] In some embodiments, the spray mechanism 107 is used to strengthen the heat exchange cooling of the heat exchanger 108, and the pressure difference of the second shunt pipeline causes the cooling water delivered by the cooling pump 101 to the spray mechanism 107 to form a spray state, thereby saving the atomization pressure of the cooling water provided by the power equipment, avoiding the energy consumption of the operation of the power equipment, and achieving the purpose of strengthening the heat exchange, thereby greatly improving the heat exchange effect of the heat exchanger 108.

[0038] In some embodiments, the evaporator 103 converts the refrigerant from liquid to gas to generate low-temperature and low-pressure refrigerant gas, and then delivers the low-temperature and low-pressure refrigerant gas to the compressor 104, which compresses the low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure gas. The compressor 104 is connected to the refrigerant side inlet of the condenser 105, which delivers the high-temperature and high-pressure gas to the condenser 105. The refrigerant side outlet of the condenser 105 is connected to the throttling mechanism 106, and the other end of the throttling mechanism 106 is connected to the refrigerant side inlet of the evaporator 103. The condenser 105 is a water-cooled heat exchanger, and the water side inlet of the condenser 105 is connected to the cooling pump 101 through a first shunt branch. The cooling pump 101 delivers cooling water to the condenser 105, and then the condenser 105 delivers the used cooling water back to the cooling tower 102.

[0039] In some embodiments, the output end of the cooling pump 101 is provided with a pipeline, i.e. the second shunt pipeline mentioned above, which is connected to the first electric valve 109 and the spraying mechanism 107 in sequence. The cooling pump 101, the first electric valve 109, and the spraying mechanism 107 are connected in sequence from top to bottom to form a pipeline with pressure difference. The spraying mechanism 107 is arranged above or / and beside the heat exchanger 108. The spraying mechanism 107 is used to atomize the cooling water by using the pressure difference of the pipeline, and to spray the atomized cooling water on the heat exchanger 108. The atomized cooling water is more conducive to its higher heat exchange performance in the heat exchanger 108, improving the heat exchange efficiency of the heat exchanger 108, and strengthening the heat exchange effect of the heat exchanger 108. The first electric valve 109 is used to control the flow of cooling water delivered by the cooling pump 101 to the spraying mechanism 107. Optionally, since the cooling pump 101 needs to overcome a certain resistance during the delivery of cooling water, the cooling pump generally needs a head of 25mH20. The second shunt pipeline is introduced at the output end of the cooling pump 101 to atomize the cooling water by using the pressure difference of the second shunt pipeline. Moreover, the water flow delivered by the cooling pump 101 to the second shunt pipeline is far less than 1% of the total output water flow of the cooling pump 101, generally about 0.1%, which almost does not increase the operating power of the cooling pump 101, and does not bring energy consumption to the entire refrigeration system. The atomized cooling water is more conducive to the higher heat exchange performance of the heat exchanger 108, improving the heat exchange efficiency of the heat exchanger 108, and enhancing the oil cooling effect of the heat exchanger 108.

[0040] The other side of the heat exchanger 108 is connected to the oil outlet and oil return port of the compressor 104. The heat exchanger 108 is used to cool the lubricating oil of the compressor and control the temperature of the lubricating oil.

[0041] In some embodiments, a heat dissipation device 111 is arranged above or beside the heat exchanger 108. The heat dissipation device 111 is a heat dissipation fan, which is used to cool the heat exchanger 108 and improve the heat exchange effect of the heat exchanger 108.

[0042] In some embodiments, the second electrically operated valve 110 is used to control the flow of oil to be cooled delivered by the compressor 104 to the heat exchanger 108, achieving precise control of the flow of oil to be cooled.

[0043] The refrigeration system with spray oil cooling provided by the embodiments of the present application can cool the refrigeration unit through the spray oil cooling unit and the cooling unit, avoid thermal damage of the refrigeration unit, and improve the stability and safety of the refrigeration system.

[0044] The embodiments described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of technology and the appearance of new application scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0045] Those skilled in the art can understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and can include more or fewer steps than those shown in the figures, or combine certain steps, or different steps.

[0046] The preferred embodiments of the embodiments of the present application are described above with reference to the accompanying drawings, and the scope of the rights of the embodiments of the present application is not limited thereto. Any modifications, equivalent replacements and improvements made by those skilled in the art without departing from the scope and essence of the embodiments of the present application shall be within the scope of the rights of the embodiments of the present application.

Claims

1. A refrigeration system with spray oil cooling, characterized in that, The system includes a spray oil cooling unit, a cooling unit, and a refrigeration unit; The first output terminal of the refrigeration unit is connected to the first input terminal of the spray oil cooling unit, and the second output terminal of the refrigeration unit is connected to the input terminal of the cooling unit. The first output terminal of the cooling unit is connected to the first input terminal of the refrigeration unit, and the second output terminal of the cooling unit is connected to the second input terminal of the spray oil cooling unit. The output end of the spray oil cooling unit is connected to the second input end of the refrigeration unit.

2. The refrigeration system according to claim 1, characterized in that, The cooling unit includes a cooling pump, a cooling tower, a first branch pipe, and a second branch pipe; The input end of the cooling pump is connected to the output end of the cooling tower, the output end of the cooling pump is connected to the second input end of the condenser through the first branch pipe, and the output end of the cooling pump is connected to the first input end of the spray oil cooling unit through the second branch pipe; The first output end of the condenser is connected to the input end of the cooling tower.

3. The refrigeration system according to claim 2, characterized in that, The refrigeration unit includes an evaporator, a compressor, a condenser, and a throttling mechanism; The output end of the evaporator is connected to the first input end of the compressor, the first output end of the compressor is connected to the first input end of the condenser, and the second output end of the condenser is connected to the input end of the evaporator through the throttling mechanism; The second input terminal of the condenser is connected to the output terminal of the cooling pump through the first branch pipe.

4. The refrigeration system according to claim 3, characterized in that, The spray oil cooling unit includes a spray mechanism and a heat exchanger; The output end of the cooling pump is connected to the input end of the spray mechanism through the second branch pipe, and the spray mechanism is located above or on the side of the heat exchanger; The input end of the heat exchanger is connected to the second output end of the compressor through a first return pipe, and the output end of the heat exchanger is connected to the second input end of the compressor through a second return pipe.

5. The refrigeration system according to claim 4, characterized in that, The spray oil cooling unit also includes a first electric valve, a second electric valve, and a heat dissipation device; The first electric valve is installed in the second diversion pipeline, and the second electric valve is installed in the first return pipeline; The heat dissipation device is located above or to the side of the heat exchanger.

6. The refrigeration system according to claim 5, characterized in that, The heat dissipation device is a cooling fan.

7. The refrigeration system according to claim 3, characterized in that, The condenser is a water-cooled heat exchanger.

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