A method and apparatus for cooling an air compressor based on dielectric heat exchange

Abstract

The present disclosure relates to a medium heat exchange-based air compressor cooling method and device. The method comprises: based on the heat exchange of the medium, the medium water is cooled by the cooling device to generate cooling water, the medium lubricating oil is cooled by the cooling water to generate low-temperature medium lubricating oil, the compressor lubricating oil is cooled by the low-temperature medium lubricating oil to generate low-temperature compressor lubricating oil, and the body cooling of the air compressor is completed based on the low-temperature compressor lubricating oil. The cooling water and high-temperature compressed gas are mixed to generate low-temperature compressed gas. The normal-temperature intake air is cooled by the low-temperature compressed gas to generate cold air intake, and the intake cooling of the air compressor is completed based on the cold air intake. The present disclosure effectively avoids the damage of the compressor caused by the water entering the lubricating oil through the heat exchange method of three kinds of media. On the other hand, the method of reducing the temperature of the intake source saves electric energy.

Description

Technical Field

[0001] This disclosure relates to the field of air compressor cooling, and more specifically, to an air compressor cooling method and apparatus based on medium heat exchange. Background Technology

[0002] Traditional air compressors directly draw in air, which is then compressed into compressed gas. During operation, the compressor generates a significant amount of heat. This heat is cooled by lubricating oil, which exchanges heat with cooling water through a heat exchanger. The cooled lubricating oil then continues to cool the compressor. However, if the heat exchanger leaks, water can enter the lubricating oil. Water-containing lubricating oil can severely damage the compressor, potentially rendering it unusable.

[0003] Meanwhile, traditional air compressors, in order to remove moisture and lower the temperature of compressed gas, first use a heat exchanger to cool the gas with cooling water. The initially cooled compressed gas then passes through a refrigerated dryer to further remove moisture. However, due to the high flow rate of the compressed gas, the initial cooling effect with cooling water is poor, leading to a heavy cooling load on the subsequent refrigerated dryer. This high-load operation of the refrigerated dryer not only wastes energy but may also fail to lower the temperature, resulting in high humidity in the compressed gas. When the compressed gas is delivered to the production workshop, the large amount of condensate it contains can lead to poor utilization or even render the compressed gas unusable, impacting production.

[0004] Therefore, one or more methods are needed to solve the above problems.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this disclosure is to provide a cooling method and apparatus for an air compressor based on medium heat exchange, thereby overcoming, at least to some extent, one or more problems caused by the limitations and defects of related technologies.

[0007] According to one aspect of this disclosure, a cooling method for an air compressor based on medium heat exchange is provided, comprising: cooling medium water through a cooling device to generate cooling water based on medium heat exchange, and cooling medium lubricating oil through the cooling water to generate low-temperature medium lubricating oil;

[0008] Based on the heat exchange of the medium, the compressor lubricating oil is cooled by the low-temperature medium lubricating oil to generate low-temperature compressor lubricating oil. Based on the low-temperature compressor lubricating oil, the air compressor body is cooled.

[0009] Based on heat exchange with a medium, low-temperature compressed gas is generated by mixing and cooling cooling water and high-temperature compressed gas.

[0010] Based on the heat exchange of the medium, the ambient temperature intake air is cooled by the low-temperature compressed gas to generate cold air intake air, and the intake air cooling of the air compressor is completed based on the cold air intake air.

[0011] In one exemplary embodiment of this disclosure, when the compressor lubricating oil is detected by a first temperature gauge to be lower than a preset temperature, the first medium water in the first heat exchanger is cooled by a cooling tower to generate first cooling water;

[0012] When the compressor lubricating oil temperature is detected by the first temperature gauge to be higher than the preset temperature, the second medium water in the second heat exchanger is cooled by the refrigeration unit to generate second cooling water;

[0013] Based on the heat exchange of the medium, the first medium water in the first heat exchanger is cooled by the second cooling water to generate the first cooling water.

[0014] In one exemplary embodiment of this disclosure, based on the oil tank of the first heat exchanger, the medium lubricating oil is extracted from the left side of the first heat exchanger to the right side of the first heat exchanger by the extraction pump of the first heat exchanger.

[0015] Based on the heat exchange of the medium, the medium lubricating oil is cooled by the first cooling water on the right side of the first heat exchanger to generate low-temperature medium lubricating oil.

[0016] In one exemplary embodiment of this disclosure, the low-temperature medium lubricating oil is extracted from the right side of the first heat exchanger to the left side of the first heat exchanger using a reflux pump based on the oil tank of the first heat exchanger.

[0017] Based on medium heat exchange, the compressor lubricating oil is cooled by the low-temperature medium lubricating oil on the left side of the first heat exchanger to generate low-temperature compressor lubricating oil;

[0018] Based on medium heat exchange, the low-temperature compressor lubricating oil absorbs the heat generated by the air compressor during operation, thereby completing the cooling of the air compressor body.

[0019] In one exemplary embodiment of this disclosure, the high-temperature compressed gas is ejected by a first flow meter to generate ejected high-temperature compressed gas;

[0020] The cooling water is ejected through a second flow meter to generate ejected cooling water;

[0021] Based on the Y-shaped pipe, the ejector high-temperature compressed gas and the ejector cooling water are mixed to generate a mixed compressed gas-liquid mixture.

[0022] In one exemplary embodiment of this disclosure, the mixed compressed gas and liquid are separated by a third heat exchanger based on the gas-liquid density difference to generate room temperature compressed gas;

[0023] The room-temperature compressed gas is cooled and dehumidified by a refrigerated dryer to generate low-temperature compressed gas.

[0024] In one exemplary embodiment of this disclosure, when the outdoor temperature detected by the second temperature instrument is higher than the preset temperature, the high-temperature outdoor air is cooled by the air conditioning module to generate normal temperature air, and the normal temperature air is filtered by the air intake filter to generate normal temperature intake air;

[0025] When the outdoor temperature is detected by the second temperature gauge to be lower than the preset temperature, the outdoor air is filtered through the air intake filter to generate the ambient temperature intake air;

[0026] Based on medium heat exchange, the ambient temperature intake air is cooled by the low temperature compressed gas to generate cold air intake air, and the intake air cooling of the air compressor is completed based on the cold air intake air.

[0027] In one aspect of this disclosure, an air compressor cooling device based on medium heat exchange is provided, the device comprising an air compressor body cooling module, an air compressor intake cooling module, a cooling tower, and a refrigeration unit, wherein:

[0028] The air compressor body cooling module is connected to the cooling device via pipes and valves, and is used to cool the air compressor body.

[0029] The air compressor intake cooling module is connected to the cooling device via pipes and valves, and is used to cool the intake air of the air compressor.

[0030] In one exemplary embodiment of this disclosure, the air compressor body cooling module includes a first heat exchanger, a second heat exchanger, and a first temperature gauge, wherein:

[0031] The first heat exchanger includes a right-side heat exchanger, a left-side heat exchanger, an oil tank, and an intermediate pump. The outlet of the right-side heat exchanger is connected to the cooling tower inlet, and the inlet of the right-side heat exchanger is connected to the second heat exchanger. The outlet of the left-side heat exchanger is connected to the air compressor lubricating oil inlet, and the inlet of the left-side heat exchanger is connected to the air compressor lubricating oil outlet. The heat exchange outlet of the left-side heat exchanger is connected to the heat exchange inlet of the right-side heat exchanger via a pump and an oil tank. The heat exchange outlet of the right-side heat exchanger is connected to the heat exchange inlet of the left-side heat exchanger via a return pump and an oil tank.

[0032] The outlet of the second heat exchanger is connected to the right side unit, the inlet of the second heat exchanger is connected to the outlet of the cooling tower, the heat exchange outlet of the second heat exchanger is connected to the inlet of the chiller, and the heat exchange inlet of the second heat exchanger is connected to the outlet of the chiller.

[0033] In one exemplary embodiment of this disclosure, the air compressor intake cooling module includes a third heat exchanger, a fourth heat exchanger, an air conditioning module, a refrigerated dryer, a first flow meter, a second flow meter, a Y-tube, an intake air filter, and a second temperature gauge, wherein:

[0034] The first flow meter is connected to the air compressor outlet at one end and to the first interface of the Y-tube at the other end; the second flow meter is connected to the cooling tower outlet at one end and to the second interface of the Y-tube at the other end.

[0035] The third heat exchanger includes a heat exchange chamber, a drain pipe, a separation chamber, and a shock absorber. The inlet of the heat exchange chamber is connected to the third interface of the Y-type pipe, and the outlet of the heat exchange chamber is connected to the inlet of the cooling tower. The separation chamber is located above the heat exchange chamber, and the outlet of the separation chamber is connected to the inlet of the refrigerated dryer. The drain pipe is located below the heat exchange chamber, and the shock absorber is located inside the heat exchange chamber.

[0036] The air outlet of the air conditioning module is connected to the air inlet of the air filter cartridge, the heat exchange inlet of the air conditioning module is connected to the outlet of the refrigeration unit, and the heat exchange outlet of the air conditioning module is connected to the inlet of the refrigeration unit.

[0037] The air inlet of the fourth heat exchanger is connected to the air outlet of the air filter cartridge, the air outlet of the fourth heat exchanger is connected to the air inlet of the air compressor, the heat exchange inlet of the fourth heat exchanger is connected to the outlet of the refrigerated dryer, the heat exchange outlet of the fourth heat exchanger is connected to the air-using equipment, and the second temperature gauge is installed at the outdoor air inlet.

[0038] An exemplary embodiment of this disclosure discloses a method for cooling an air compressor based on medium heat exchange. The method includes: cooling water using a cooling device to generate cooling water, and then cooling lubricating oil using the cooling water to generate low-temperature medium lubricating oil; cooling compressor lubricating oil using the low-temperature medium lubricating oil to generate low-temperature compressor lubricating oil, and using the low-temperature compressor lubricating oil to complete the cooling of the air compressor body; mixing and cooling cooling water and high-temperature compressed gas to generate low-temperature compressed gas; and cooling ambient temperature intake air using the low-temperature compressed gas to generate cold air intake air, and using the cold air intake air to complete the intake air cooling of the air compressor. On the one hand, this disclosure effectively avoids water ingress into the lubricating oil, which could damage the compressor, by using a three-medium heat exchange method. On the other hand, it saves energy by reducing the intake air source temperature.

[0039] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0040] The above and other features and advantages of this disclosure will become more apparent from the detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0041] Figure 1 A flowchart of an air compressor cooling method based on medium heat exchange according to an exemplary embodiment of the present disclosure is shown;

[0042] Figure 2 The illustration shows an application scenario of an air compressor cooling method and apparatus based on medium heat exchange according to an exemplary embodiment of the present disclosure. Detailed Implementation

[0043] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.

[0044] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced without one or more of the specific details described, or other methods, components, materials, apparatuses, steps, etc., can be employed. In other instances, well-known structures, methods, apparatuses, implementations, materials, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure.

[0045] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, or in one or more software-hardened modules, or in different network and / or processor devices and / or microcontroller devices.

[0046] In this example embodiment, a cooling method for an air compressor based on medium heat exchange is first provided; see reference. Figure 1 As shown, the air compressor cooling method based on medium heat exchange may include the following steps:

[0047] Step S110: Based on the heat exchange of the medium, the medium water is cooled by a cooling device to generate cooling water, and the medium lubricating oil is cooled by the cooling water to generate low-temperature medium lubricating oil.

[0048] Step S120: Based on the heat exchange of the medium, the compressor lubricating oil is cooled by the low-temperature medium lubricating oil to generate low-temperature compressor lubricating oil. Based on the low-temperature compressor lubricating oil, the air compressor body is cooled.

[0049] Step S130: Based on the heat exchange of the medium, the cooling water and high-temperature compressed gas are mixed and cooled to generate low-temperature compressed gas.

[0050] Step S140: Based on the heat exchange of the medium, the ambient temperature intake air is cooled by the low temperature compressed gas to generate cold air intake air. Based on the cold air intake air, the intake air cooling of the air compressor is completed.

[0051] An exemplary embodiment of this disclosure discloses a method for cooling an air compressor based on medium heat exchange. The method includes: cooling water using a cooling device to generate cooling water, and then cooling lubricating oil using the cooling water to generate low-temperature medium lubricating oil; cooling compressor lubricating oil using the low-temperature medium lubricating oil to generate low-temperature compressor lubricating oil, and then cooling the air compressor body using the low-temperature compressor lubricating oil; mixing and cooling cooling water and high-temperature compressed gas to generate low-temperature compressed gas; and then cooling ambient temperature intake air using the low-temperature compressed gas to generate cold air intake air, and then cooling the air intake of the air compressor using the cold air intake air. On the one hand, this disclosure effectively avoids water damage to the compressor by using three media for heat exchange. On the other hand, it saves energy by reducing the source intake air temperature.

[0052] The following will further describe an air compressor cooling method based on medium heat exchange in this example embodiment.

[0053] In template configuration step S110, based on the heat exchange of the medium, the medium water can be cooled by a cooling device to generate cooling water, and the medium lubricating oil can be cooled by the cooling water to generate low-temperature medium lubricating oil.

[0054] In the embodiments of this example, as Figure 2As shown, the cooling process of an air compressor mainly relies on the lubricating oil absorbing the compressor's heat, and then the lubricating oil exchanges heat with cooling water for further cooling. However, when there is a leak in the heat exchanger, water can enter the lubricating oil, causing significant damage to the compressor and even rendering it unusable. To prevent cooling water from entering the lubricating oil during the heat exchange process and to prevent water-containing lubricating oil from damaging the compressor, this invention uses three media for heat exchange. Specifically, the compressor lubricating oil exchanges heat with the intermediate lubricating oil, which then exchanges heat with the cooling water. Furthermore, this invention designs a novel heat exchanger comprising a right-side heat exchanger, a left-side heat exchanger, an oil tank, and an intermediate pump.

[0055] When the high-temperature compressor lubricating oil of the air compressor is detected by the first temperature gauge to be lower than the preset temperature, the cooling water that has been cooled in the cooling tower enters the right side of the first heat exchanger through the second heat exchanger to cool the first medium water in the right side of the first heat exchanger, so that the first medium water in the right side of the first heat exchanger is cooled to the preset temperature and the first cooling water is generated.

[0056] When the first temperature gauge detects that the high-temperature compressor lubricating oil of the air compressor is higher than the preset temperature, that is, when the temperature of the cooling water in the cooling tower is insufficient to lower the lubricating oil to a suitable temperature (especially in summer, when the cooling water in the cooling tower is more likely to reach cooling saturation), the electric valve between the chiller and the second heat exchanger is opened. The chilled water produced by the chiller enters the second heat exchanger through the heat exchange inlet, cooling the second medium water in the second heat exchanger to generate second cooling water.

[0057] Based on the heat exchange of the medium, the first medium water flowing through the second heat exchanger is cooled by the second cooling water to generate the first cooling water. The heated chilled water flows back to the chiller through the heat exchange outlet of the second heat exchanger, where it is cooled and reused. Thus, when the cooling water in the cooling tower reaches its cooling limit but is insufficient to cool the lubricating oil, the first cooling water can be further cooled by the chilled water, ensuring that the cooling water has sufficient cooling capacity to cool the lubricating oil.

[0058] In the embodiments of this example, as Figure 2 As shown, the heat-absorbing medium lubricating oil is drawn from the left side to the right side of the first heat exchanger by the extraction pump. Then, based on the heat exchange of the medium, the heat-absorbing medium lubricating oil is cooled by the first cooling water in the right side of the first heat exchanger, generating low-temperature medium lubricating oil. The first cooling water, after absorbing the medium lubricating oil, is heated and then flows back into the cooling tower through the outlet of the right side of the heat exchanger for cooling and reuse.

[0059] In template configuration step S120, the compressor lubricating oil can be cooled by the low-temperature medium lubricating oil based on the heat exchange of the medium, thereby generating low-temperature compressor lubricating oil, and the air compressor body is cooled based on the low-temperature compressor lubricating oil.

[0060] In the embodiments of this example, as Figure 2 As shown, the low-temperature medium lubricating oil (i.e., the cooled medium lubricating oil) is drawn from the right side unit to the left side unit via a reflux pump of the first heat exchanger. Based on medium heat exchange, the compressor lubricating oil is cooled by the low-temperature medium lubricating oil in the left side unit, generating low-temperature compressor lubricating oil. An oil tank and an intermediate pump are connected between the left and right side units to ensure the reciprocating circulation of the medium lubricating oil.

[0061] This disclosure involves heat exchange between the intermediate lubricating oil and the compressor lubricating oil in the left side of the first heat exchanger, and heat exchange between the intermediate lubricating oil and the first cooling water in the right side of the first heat exchanger. The left and right sides are directly connected only by pipes and an oil tank. Thus, even if a leak occurs inside the left side, causing the intermediate lubricating oil to seep into the compressor lubricating oil, it will not have any impact since both are lubricating oils; only the left side needs to be repaired promptly. Similarly, even if a leak occurs inside the right side, the cooling water will only leak into the intermediate lubricating oil, which will not directly damage the compressor. Only replacing the intermediate lubricating oil with new lubricating oil and repairing the right side is necessary. Therefore, this disclosure effectively prevents water from entering the compressor lubricating oil and damaging the compressor.

[0062] Finally, based on medium heat exchange, the heat energy generated by the operation of the air compressor is absorbed by the low-temperature compressor lubricating oil, thereby completing the cooling of the air compressor body.

[0063] In template configuration step S130, low-temperature compressed gas can be generated by mixing and cooling the cooling water and high-temperature compressed gas based on the heat exchange of the medium.

[0064] In the embodiments of this example, as Figure 2 As shown, after the high-temperature compressed gas flows out of the air compressor outlet, it is ejected by the first flow meter (the first flow meter is equipped with a float; the greater the flow rate of the high-temperature compressed gas, the higher the float rises; at the same time, the first flow meter is equipped with a scale on the outside to observe the flow rate of the high-temperature compressed gas). The ejected high-temperature compressed gas then enters the Y-shaped pipe, generating ejected high-temperature compressed gas.

[0065] Once the first flow meter detects the ejection of high-temperature compressed gas, the second flow meter ejects cooling water. (The second flow meter also contains a float; the higher the cooling water flow, the higher the float rises. The second flow meter also has external scales to observe the cooling water flow rate.) The ejected cooling water then enters the Y-shaped pipe, forming ejected cooling water.

[0066] At the same time, a temperature meter can be set before the flow meter to measure the temperature of the high-temperature compressed gas, determine the heat carried by the high-temperature compressed gas, and then automatically adjust the flow rate of the cooling water based on the flow rate of the high-temperature compressed gas and the temperature of the cooling water to ensure the ratio of high-temperature compressed gas to cooling water, thereby achieving the best cooling water usage and the most energy-efficient operation.

[0067] In the Y-shaped pipe, high-temperature compressed gas and cooling water are mixed to generate a mixed compressed gas-liquid mixture, which then enters the third heat exchanger through the pipe. In this process, due to the direct mixing and contact between the cooling water and the high-temperature compressed gas, the heat exchange is very thorough and rapid, enabling a faster reduction in the temperature of the high-temperature compressed gas.

[0068] In the embodiments of this example, as Figure 2 As shown, when the mixed compressed gas and liquid enter the third heat exchanger, the compressed gas and water are separated by the density difference between the gas and liquid, since the density of the compressed gas is much smaller than that of water.

[0069] The specific method is as follows: when the mixed compressed gas and liquid enter the heat exchange chamber of the third heat exchanger, firstly, the noise and vibration are reduced by the shock absorber, and then the compressed gas is made to enter the separation chamber based on the density difference pressure. Multiple small holes are set on the air inlet of the separation chamber to preliminarily separate the moisture in the compressed gas.

[0070] Then, the moisture carried in the compressed gas is further separated by the staggered upper and lower baffles installed in the separation chamber.

[0071] Finally, the compressed gas enters the top of the separation chamber (the top of the separation chamber is an arc-shaped dome with inverted conical ribs installed below it. Small balls are placed on the inverted conical ribs. If the water level in the heat exchange chamber becomes uncontrolled and overflows into the separation chamber, the small balls will float to the top of the separation chamber because the density of water is greater than the density of the small balls, blocking the central air outlet at the top and preventing the mixed compressed gas and liquid from entering the next stage. An alarm will also be triggered), and then enters the refrigerated dryer through the central air outlet at the top.

[0072] The separated, heated cooling water is piped into a cooling tower for further cooling (due to the pressure of the compressed gas, the drainage from the heat exchange chamber does not require a water pump), and is then recycled. Some wastewater is discharged through a drain pipe.

[0073] The ambient temperature compressed gas entering the refrigerated dryer is cooled and dehumidified again by the refrigerated dryer, so that the compressed gas is reduced to the leak point temperature. The condensate in the compressed gas is discharged through the drain pipe at the bottom of the refrigerated dryer, and the generated low temperature compressed gas enters the fourth heat exchanger through the pipeline.

[0074] In template configuration step S140, based on the heat exchange of the medium, the ambient temperature intake air can be cooled by the low temperature compressed gas to generate cold air intake air, and the intake air cooling of the air compressor can be completed based on the cold air intake air.

[0075] In the embodiments of this example, as Figure 2 As shown, when the outdoor temperature detected by the second thermometer is higher than the preset temperature (especially in summer when the outdoor temperature is too high), to prevent high-temperature air from entering the air compressor and causing the compressed air temperature to be too high, the air conditioning module first cools the high-temperature outdoor air to generate room-temperature air. Then, the room-temperature air is filtered through the air inlet filter (in actual applications, the cool air from the air conditioning module passes through the air valve and duct, with part entering the production workshop to lower the workshop temperature, and the other part passing through the blower valve and blower duct to enter the air inlet filter), generating room-temperature intake air.

[0076] When the outdoor temperature detected by the second thermometer is lower than the preset temperature (in winter or during the transition from spring to autumn when the outdoor temperature is not high), the outdoor air can be directly filtered through the air intake filter to generate normal temperature intake air.

[0077] The generated ambient temperature intake air enters the fourth heat exchanger through a pipeline. Based on medium heat exchange, the ambient temperature intake air is cooled by low-temperature compressed gas to generate cold air intake air. In this way, not only is the cooling capacity of the low-temperature compressed gas utilized, but the temperature of the ambient temperature intake air is also reduced further, facilitating subsequent cooling of the air compressor and compressed gas, thus saving energy.

[0078] Then, the low-temperature compressed gas, after being heated from a low temperature, flows out through the heat exchanger outlet and enters the gas-using equipment for utilization. The cooled air intake passes through the air compressor inlet and enters the air compressor for compression, completing the intake air cooling of the air compressor.

[0079] It should be noted that although the steps of the method in this disclosure are described in a specific order in the accompanying drawings, this does not require or imply that the steps must be performed in that specific order, or that all the steps shown must be performed to achieve the desired result. Additional or alternative steps may be omitted, multiple steps may be combined into one step, and / or a step may be broken down into multiple steps.

[0080] Furthermore, in this example embodiment, an air compressor cooling device based on medium heat exchange is also provided. (See reference...) Figure 2 As shown, the air compressor cooling device based on medium heat exchange may include an air compressor body cooling module 100, an air compressor intake cooling module 200, a cooling tower 400, and a refrigeration unit 300, wherein:

[0081] The air compressor body cooling module 100 is connected to the cooling device through pipes and valves, and is used to cool the air compressor body;

[0082] The air compressor intake cooling module 200 is connected to the cooling device via pipes and valves, and is used to cool the intake air of the air compressor.

[0083] In the embodiments of this example, as Figure 2 As shown, the air compressor body cooling module 100 includes a first heat exchanger 102, a second heat exchanger 103, and a first temperature gauge 104, wherein:

[0084] The first heat exchanger 102 includes a right heat exchanger 1021, a left heat exchanger 1022, an oil tank 1023, and a pump 1024. The outlet of the right heat exchanger 1021 is connected to the inlet of the cooling tower 400, and the inlet of the right heat exchanger 1021 is connected to the second heat exchanger 103. The outlet of the left heat exchanger 1022 is connected to the lubricating oil inlet of the air compressor 500, and the inlet of the left heat exchanger 1022 is connected to the lubricating oil outlet of the air compressor 500. The heat exchange outlet of the left heat exchanger 1022 is connected to the heat exchange inlet of the right heat exchanger 1021 through the pump 1024 and the oil tank 1023. The heat exchange outlet of the right heat exchanger 1021 is connected to the heat exchange inlet of the left heat exchanger 1022 through the return pump 1025 and the oil tank 1023.

[0085] The outlet of the second heat exchanger 103 is connected to the right-side unit 1021, the inlet of the second heat exchanger 103 is connected to the outlet of the cooling tower 400, the heat exchange outlet of the second heat exchanger 103 is connected to the inlet of the chiller 300, and the heat exchange inlet of the second heat exchanger 103 is connected to the outlet of the chiller 300.

[0086] In the embodiments of this example, as Figure 2 As shown, the air compressor intake cooling module includes a third heat exchanger 201, a fourth heat exchanger 202, an air conditioning module 203, a refrigerated dryer 208, a first flow meter 204, a second flow meter 205, a Y-tube 206, an intake air filter 207, and a second temperature gauge 209, wherein:

[0087] The first flow meter 204 is connected to the air outlet of the air compressor 500 at one end and to the first interface of the Y-tube 206 at the other end. The second flow meter 205 is connected to the outlet of the cooling tower 400 at one end and to the second interface of the Y-tube 206 at the other end.

[0088] The third heat exchanger 201 includes a heat exchange chamber 2012, a drain pipe 2014, a separation chamber 2011, and a shock absorber 2013. The inlet of the heat exchange chamber 2012 is connected to the third interface of the Y-shaped pipe 206, and the outlet of the heat exchange chamber 2012 is connected to the inlet of the cooling tower 400. The separation chamber 2011 is located above the heat exchange chamber 2012, and the outlet of the separation chamber 2011 is connected to the inlet of the refrigerated dryer 208. The drain pipe 2014 is located below the heat exchange chamber, and the shock absorber 2013 is located inside the heat exchange chamber 2012.

[0089] The air outlet of the air conditioning module 203 is connected to the air inlet of the air filter cartridge 207, the heat exchange inlet of the air conditioning module 203 is connected to the outlet of the refrigeration unit 300, and the heat exchange outlet of the air conditioning module 203 is connected to the inlet of the refrigeration unit 300.

[0090] The air inlet of the fourth heat exchanger 202 is connected to the air outlet of the air filter cartridge 207, the air outlet of the fourth heat exchanger 202 is connected to the air inlet of the air compressor 500, the heat exchange inlet of the fourth heat exchanger 202 is connected to the outlet of the refrigerated dryer 208, the heat exchange outlet of the fourth heat exchanger 202 is connected to the air-using equipment, and the second temperature gauge 209 is installed at the outdoor air inlet.

[0091] Valves can be installed at the inlet and outlet of the pipes and modules in each of the above-mentioned air compressor cooling devices based on medium heat exchange.

[0092] The specific details of each of the above-mentioned air compressor cooling device modules based on medium heat exchange have been described in detail in the corresponding air compressor cooling method based on medium heat exchange, so they will not be repeated here.

[0093] It should be noted that although several modules or units of an air compressor cooling device based on medium heat exchange have been mentioned in the detailed description above, this division is not mandatory. In fact, according to embodiments of this disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0094] Furthermore, the above figures are merely illustrative of the processes included in the method according to exemplary embodiments of the present invention, and are not intended to be limiting. It is readily understood that the processes shown in the above figures do not indicate or limit the temporal order of these processes. Additionally, it is readily understood that these processes may be executed synchronously or asynchronously, for example, in multiple modules.

[0095] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims.

[0096] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A cooling device for an air compressor based on medium heat exchange, characterized in that, The device includes an air compressor body cooling module, an air compressor intake cooling module, a cooling tower, and a refrigeration unit, wherein: The air compressor body cooling module is connected to the cooling device via pipes and valves, and is used to cool the air compressor body. The air compressor intake cooling module is connected to the cooling device via pipes and valves, and is used to cool the intake air of the air compressor. The air compressor body cooling module includes a first heat exchanger, a second heat exchanger, and a first temperature gauge, wherein: The first heat exchanger includes a right-side heat exchanger, a left-side heat exchanger, an oil tank, and an intermediate pump. The outlet of the right-side heat exchanger is connected to the cooling tower inlet, and the inlet of the right-side heat exchanger is connected to the second heat exchanger. The outlet of the left-side heat exchanger is connected to the air compressor lubricating oil inlet, and the inlet of the left-side heat exchanger is connected to the air compressor lubricating oil outlet. The heat exchange outlet of the left-side heat exchanger is connected to the heat exchange inlet of the right-side heat exchanger via a pump and an oil tank. The heat exchange outlet of the right-side heat exchanger is connected to the heat exchange inlet of the left-side heat exchanger via a return pump and an oil tank. The outlet of the second heat exchanger is connected to the right side unit, the inlet of the second heat exchanger is connected to the outlet of the cooling tower, the heat exchange outlet of the second heat exchanger is connected to the inlet of the chiller, and the heat exchange inlet of the second heat exchanger is connected to the outlet of the chiller. The air compressor intake cooling module includes a third heat exchanger, a fourth heat exchanger, an air conditioning module, a refrigerated dryer, a first flow meter, a second flow meter, a Y-tube, an intake air filter, and a second temperature gauge, wherein: The first flow meter is connected to the air compressor outlet at one end and to the first interface of the Y-tube at the other end; the second flow meter is connected to the cooling tower outlet at one end and to the second interface of the Y-tube at the other end. The third heat exchanger includes a heat exchange chamber, a drain pipe, a separation chamber, and a shock absorber. The inlet of the heat exchange chamber is connected to the third interface of the Y-type pipe, and the outlet of the heat exchange chamber is connected to the inlet of the cooling tower. The separation chamber is located above the heat exchange chamber, and the outlet of the separation chamber is connected to the inlet of the refrigerated dryer. The drain pipe is located below the heat exchange chamber, and the shock absorber is located inside the heat exchange chamber. The air outlet of the air conditioning module is connected to the air inlet of the air filter cartridge, the heat exchange inlet of the air conditioning module is connected to the outlet of the refrigeration unit, and the heat exchange outlet of the air conditioning module is connected to the inlet of the refrigeration unit. The air inlet of the fourth heat exchanger is connected to the air outlet of the air filter cartridge, the air outlet of the fourth heat exchanger is connected to the air inlet of the air compressor, the heat exchange inlet of the fourth heat exchanger is connected to the outlet of the refrigerated dryer, the heat exchange outlet of the fourth heat exchanger is connected to the air-using equipment, and the second temperature gauge is installed at the outdoor air inlet.

2. A cooling method for an air compressor cooling device based on medium heat exchange as described in claim 1, characterized in that, The method includes: Based on the heat exchange of the medium, the medium water is cooled by a cooling device to generate cooling water, and the medium lubricating oil is cooled by the cooling water to generate low-temperature medium lubricating oil. Based on the heat exchange of the medium, the compressor lubricating oil is cooled by the low-temperature medium lubricating oil to generate low-temperature compressor lubricating oil. Based on the low-temperature compressor lubricating oil, the air compressor body is cooled. Based on heat exchange with a medium, low-temperature compressed gas is generated by mixing and cooling cooling water and high-temperature compressed gas. Based on the heat exchange of the medium, the ambient temperature intake air is cooled by the low-temperature compressed gas to generate cold air intake air, and the intake air cooling of the air compressor is completed based on the cold air intake air.

3. The cooling method as described in claim 2, characterized in that, The method further includes: When the compressor lubricating oil is detected by the first temperature gauge to be lower than the preset temperature, the first medium water in the first heat exchanger is cooled by the cooling tower to generate the first cooling water; When the compressor lubricating oil temperature is detected by the first temperature gauge to be higher than the preset temperature, the second medium water in the second heat exchanger is cooled by the refrigeration unit to generate second cooling water; Based on the heat exchange of the medium, the first medium water in the first heat exchanger is cooled by the second cooling water to generate the first cooling water.

4. The cooling method as described in claim 3, characterized in that, The method further includes: Based on the oil tank of the first heat exchanger, the medium lubricating oil is extracted from the left side of the first heat exchanger to the right side of the first heat exchanger by the extraction pump of the first heat exchanger; Based on the heat exchange of the medium, the medium lubricating oil is cooled by the first cooling water on the right side of the first heat exchanger to generate low-temperature medium lubricating oil.

5. The cooling method as described in claim 4, characterized in that, The method further includes: Based on the oil tank of the first heat exchanger, the low-temperature medium lubricating oil is extracted from the right side of the first heat exchanger to the left side of the first heat exchanger by the return pump of the first heat exchanger. Based on medium heat exchange, the compressor lubricating oil is cooled by the low-temperature medium lubricating oil on the left side of the first heat exchanger to generate low-temperature compressor lubricating oil; Based on medium heat exchange, the low-temperature compressor lubricating oil absorbs the heat generated by the air compressor during operation, thereby completing the cooling of the air compressor body.

6. The cooling method as described in claim 2, characterized in that, The method further includes: The high-temperature compressed gas is ejected through the first flow meter to generate ejected high-temperature compressed gas; The cooling water is ejected through a second flow meter to generate ejected cooling water; Based on the Y-shaped pipe, the ejector high-temperature compressed gas and the ejector cooling water are mixed to generate a mixed compressed gas-liquid mixture.

7. The cooling method as described in claim 6, characterized in that, The method further includes: Based on the density difference between gas and liquid, the mixed compressed gas and liquid are separated by a third heat exchanger to generate room temperature compressed gas. The room-temperature compressed gas is cooled and dehumidified by a refrigerated dryer to generate low-temperature compressed gas.

8. The cooling method as described in claim 7, characterized in that, The method further includes: When the outdoor temperature detected by the second temperature meter is higher than the preset temperature, the air conditioning module cools the high-temperature outdoor air to generate normal temperature air, and the normal temperature air is filtered through the air intake filter to generate normal temperature intake air. When the outdoor temperature is detected by the second temperature gauge to be lower than the preset temperature, the outdoor air is filtered through the air intake filter to generate the ambient temperature intake air; Based on medium heat exchange, the ambient temperature intake air is cooled by the low temperature compressed gas to generate cold air intake air, and the intake air cooling of the air compressor is completed based on the cold air intake air.

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