Lubricating oil cooling system and compressor

Abstract

The utility model discloses a lubricating oil cooling system and a compressor. The lubricating oil cooling system comprises an oil tank, an oil pump, a first filter assembly, a second filter assembly, an oil cooling coil and a heat exchange coil. The first filtering assembly and the second filtering assembly are both communicated with the oil tank and are arranged in parallel; the oil cooling coil pipe is arranged at the downstream of the first filtering assembly and the second filtering assembly, and the heat exchange coil pipe is used for cooling lubricating oil in the oil cooling coil pipe; lubricating oil flowing through the cooler is supplied to a plurality of lubricating points; the oil flows back to the oil tank. The lubricating oil cooling system pumps lubricating oil into the first filtering assembly and the second filtering assembly from the oil tank through the oil pump, so that impurities and particles can be filtered out, and the cleanliness of the lubricating oil is ensured. Impurities and particles can be prevented from entering the compressor, and compressor abrasion and fault risks are reduced. The first filtering assembly and the second filtering assembly which are arranged in parallel can reduce the risk of shutdown maintenance, and the stability of the compressor can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical lubrication field, especially relate to a lubricating oil cooling system and compressor. BACKGROUND

[0002] Compressor, is a driven fluid machinery that low pressure gas is promoted as high pressure gas.

[0003] Compressor usually has lubricating oil cooling system, and lubricating oil cooling system pumps lubricating oil through the meshing surface of bearing and gear of compressor, gear shaft, main motor shaft and other components, and lubricates and cools them.

[0004] At present, the lubricating oil cooling system is often blocked by impurities, causing low lubrication and cooling efficiency of the compressor, and in severe cases, the compressor must be stopped for maintenance, affecting normal production operation. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem that the prior art lubricating oil cooling system is often blocked by impurities, and provides a lubricating oil cooling system and compressor.

[0006] The utility model solves the above technical problem by the following technical scheme:

[0007] A lubricating oil cooling system, the lubricating oil cooling system comprises an oil tank, an oil pump, first and second filter assemblies, an oil cooling coil and a heat exchange coil, the oil tank is used for containing lubricating oil, the oil pump is used for driving the lubricating oil in the oil tank, the first and second filter assemblies are connected in parallel and communicate with the oil tank, the oil cooling coil is arranged downstream of the first and second filter assemblies, and the heat exchange coil is used for cooling the lubricating oil in the oil cooling coil, the lubricating oil flowing through the cooler is supplied to a plurality of lubricating points, and the lubricating oil flowing through the lubricating points returns to the oil tank.

[0008] In the scheme, the lubricating oil cooling system pumps the lubricating oil from the oil tank into the first and second filter assemblies by the oil pump, so that the first and second filter assemblies can filter out impurities and particulate matter in the lubricating oil, thereby ensuring the cleanliness of the lubricating oil. The impurities and particulate matter can be prevented from entering the compressor, reducing the wear and failure risk of the compressor. The first and second filter assemblies arranged in parallel can reduce the risk of shutdown maintenance and improve the stability of the compressor.

[0009] Optionally, the lubricating oil cooling system further comprises a bypass pipeline, one end of the bypass pipeline is communicated with the oil tank, the other end of the bypass pipeline is communicated with the lubricating point, and the bypass pipeline is used for bypassing the first filter assembly, the second filter assembly and the oil cooling coil.

[0010] Optionally, the lubricating oil cooling system further comprises a temperature sensor, the temperature sensor is arranged in the oil tank, and the temperature sensor is used for detecting the temperature of the oil tank.

[0011] Optionally, if the temperature of the oil tank is greater than a first preset value, the bypass pipeline is closed.

[0012] Optionally, if the temperature of the oil tank is not greater than a second preset value, the bypass pipeline is opened, and the lubricating oil flows from the oil tank to the lubricating point through the bypass pipeline.

[0013] Optionally, the lubricating oil cooling system further comprises two oil filter front pressure gauges, and the two oil filter front pressure gauges are arranged upstream of the first filter assembly and the second filter assembly respectively.

[0014] Optionally, the lubricating oil cooling system further comprises two oil filter rear pressure gauges, and the two oil filter rear pressure gauges are arranged downstream of the first filter assembly and the second filter assembly respectively.

[0015] A compressor, the compressor comprises the lubricating oil cooling system, and the lubricating oil cooling system is used for lubricating a lubricating point of the compressor.

[0016] The compressor adopts the lubricating oil cooling system, so that impurities and particulate matter can be avoided from entering the compressor, and the wear and failure risk of the compressor is reduced. The first filter assembly and the second filter assembly arranged in parallel can reduce the risk of shutdown maintenance, and the stability of the compressor can be improved.

[0017] On the basis of conforming to common sense in the art, the above-mentioned preferred conditions can be combined arbitrarily, that is, each preferred example of the utility model is obtained.

[0018] The positive progress effect of the utility model lies in:

[0019] The utility model discloses a lubricating oil cooling system, which comprises an oil tank, a first filter assembly, a second filter assembly, an oil cooling coil and an oil pump. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A schematic view of a lubricating oil cooling system according to an embodiment of the present application.

[0021] Explanation of reference signs:

[0022] Lubricating oil cooling system 100

[0023] Oil tank 11

[0024] Oil pump 12

[0025] First filter assembly 13

[0026] Second filter assembly 14

[0027] Oil cooling coil 15

[0028] Condenser 16

[0029] Bypass line 17

[0030] Temperature sensor 18

[0031] Pressure sensor 19

[0032] Pre-filter pressure gauge 20

[0033] Post-filter pressure gauge 21

[0034] Three-way valve 22

[0035] Compressor 200 DETAILED DESCRIPTION

[0036] The present application will be more fully understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0037] As Figure 1As shown, the embodiment includes a lubricating oil cooling system 100, which comprises an oil tank 11, an oil pump 12, first and second filter assemblies 13 and 14, an oil cooling coil 15, and a heat exchange coil. The oil tank 11 is used to store lubricating oil. The oil pump 12 is used to drive the lubricating oil in the oil tank 11. The first and second filter assemblies 13 and 14 are both connected to the oil tank 11 and are arranged in parallel. The oil cooling coil 15 is arranged downstream of the first and second filter assemblies 13 and 14. The heat exchange coil is used to cool the lubricating oil in the oil cooling coil 15. The lubricating oil flowing through the cooler is supplied to a plurality of lubricating points. After flowing through the lubricating points, the lubricating oil flows back to the oil tank 11. The lubricating oil cooling system 100 uses the oil pump 12 to pump the lubricating oil from the oil tank 11 into the first and second filter assemblies 13 and 14, so that the first and second filter assemblies 13 and 14 can filter out impurities and particulate matter in the lubricating oil, thereby ensuring the cleanliness of the lubricating oil. This can prevent impurities and particulate matter from entering the compressor 200, reducing the risk of wear and failure of the compressor 200. The parallel arrangement of the first and second filter assemblies 13 and 14 can reduce the risk of downtime maintenance and improve the stability of the compressor 200.

[0038] The parallel arrangement of the first and second filter assemblies 13 and 14 can solve the problem of having to perform maintenance during the after-sales service process, while enhancing the reliability of the oil filter system and improving the stability of the unit operation.

[0039] As an implementation, the heat exchange coil built into the condenser 16 can be used as an oil cooler, which can improve system integration and avoid the problem of dirty and blocked plates between conventional oil cooling plates.

[0040] In the figure, the lubricating oil cooling system 100 further comprises a bypass pipeline 17, one end of which is connected to the oil tank 11 and the other end of which is connected to the lubricating points. The bypass pipeline 17 is used to bypass the first and second filter assemblies 13 and 14 and the oil cooling coil 15. When the compressor 200 is in a partial load state, the heat generated by the compressor 200 is small, and the temperature of the oil tank 11 continues to drop uncontrollably, resulting in excessively low lubricating oil temperature and excessively large viscosity, which affects the lubrication effect and reduces the bearing life of the compressor 200. The bypass pipeline 17 can prevent the lubricating oil temperature from being too low.

[0041] The lubricating oil cooling system 100 further comprises a temperature sensor 18 arranged in the oil tank 11. The temperature sensor 18 is used to detect the temperature of the oil tank 11. If the temperature of the oil tank 11 is greater than a first preset value, the bypass pipeline 17 is closed. If the temperature of the oil tank 11 is not greater than a second preset value, the bypass pipeline 17 is opened, and the lubricating oil flows from the oil tank 11 into the lubricating points through the bypass pipeline 17.

[0042] In the figure, the lubricating oil cooling system 100 further comprises a pressure sensor 19 for detecting the pressure of the oil tank 11.

[0043] By setting the bypass pipeline 17, the flow and pressure of the lubricating oil can be accurately controlled, so that the temperature of the oil tank 11 can be maintained in the optimal working range under different working conditions of the centrifugal unit, and the stability and reliability of the centrifugal unit in long-term operation can be ensured.

[0044] As an embodiment, the bypass pipeline 17 can be connected to the output pipeline of the oil tank 11 by using a three-way valve 22. The control logic of the three-way valve 22 can be as follows:

[0045] The temperature of the oil tank 11 > set value, the bypass is closed, and the lubricating oil enters the cooling coil; the set value can be the first preset value in the above.

[0046] The temperature of the oil tank 11 ≤ set value-δT, the cooling path is closed, and the lubricating oil enters the bypass pipeline 17; the set value-δT can be the second preset value.

[0047] The first preset value and the second preset value can be configured according to actual conditions.

[0048] The lubricating oil cooling system 100 further comprises two oil filter front pressure gauges 20, which are respectively arranged upstream of the first filter assembly 13 and the second filter assembly 14. The lubricating oil cooling system 100 further comprises two oil filter rear pressure gauges 21, which are respectively arranged downstream of the first filter assembly 13 and the second filter assembly 14.

[0049] The lubricating oil cooling system 100 mainly comprises an oil tank 11, an oil pump 12, an oil cooler, a first filter assembly 13, and a second filter assembly 14, etc., to ensure that the lubricating oil is fully lubricated and cooled in the compressor 200. As an embodiment, the lubricating oil is pumped out from the oil tank 11 by the oil pump 12, filtered and cooled, and then supplied to each lubrication point of the compressor 200. After forming an oil film at the lubrication point, the lubricating oil returns to the oil tank 11 for circulation. The lubricating oil not only plays a lubricating role, but also takes responsibility for cooling and sealing the compressor 200 components.

[0050] Generally, blockage is easy to occur inside the cooler, such as dirt accumulation or impurities blocking the pipeline, which will affect the cooling effect, cause the oil temperature to be too high, and thus increase the risk of wear and failure of the compressor 200 components. The first filter assembly 13 and the second filter assembly 14 are used to filter out impurities and particulate matter in the lubricating oil, to ensure its cleanliness. It can be avoided that impurities and particulate matter enter the compressor 200 components, causing wear and failure.

[0051] The lubricating oil cooling system 100 can improve cooling efficiency. By optimizing the structure and operation mode of the lubricating oil cooling system 100, the cooling efficiency of the lubricating oil is improved, and its stable operation in the centrifugal unit is ensured. The lubricating oil cooling system 100 can enhance system stability. By effective cooling, the temperature fluctuation inside the centrifugal unit is reduced, thereby improving the stability and reliability of the entire lubricating oil cooling system 100.

[0052] The lubricating oil cooling system 100 can prolong equipment life. By reducing the deterioration of lubricating oil and component wear caused by high temperature, the service life of the centrifugal unit is prolonged. The lubricating oil cooling system 100 is easy to maintain. The structure of the lubricating oil cooling system 100 is reasonably designed, easy to disassemble and clean, and the maintenance cost and time are reduced.

[0053] The lubricating oil cooling system 100 is adaptable. The lubricating oil cooling system 100 can adapt to different models and specifications of centrifugal units, as well as different working environments and conditions, and has strong universality and adaptability. The lubricating oil cooling system 100 can improve equipment performance. By effective cooling, the temperature inside the centrifugal unit is stabilized, thereby improving the operation efficiency and performance of the equipment.

[0054] In the centrifugal unit, the lubricating oil is first pressurized by the oil pump 12, drawn out from the oil tank 11, and impurities are removed through the first filter assembly 13 and the second filter assembly 14. The filtered lubricating oil enters the oil cooler built in the condenser 16, where it exchanges heat with the refrigerant, thereby reducing the oil temperature. The cooled lubricating oil is delivered to the bearings of the compressor 200, the gear shaft, the main motor shaft, and the meshing surface of the gear through the oil supply pipeline for lubrication and cooling.

[0055] The embodiment also includes a compressor 200, which comprises the above lubricating oil cooling system 100 for lubricating the lubrication points of the compressor 200. The compressor 200 adopts the lubricating oil cooling system 100, which can avoid impurities and particulate matter from entering the compressor 200, reducing the risk of wear and failure of the compressor 200. The first filter assembly 13 and the second filter assembly 14 arranged in parallel can reduce the risk of downtime maintenance and improve the stability of the compressor 200.

[0056] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and such changes and modifications fall within the protection scope of the present application.

Claims

1. A lubricating oil cooling system characterized by, The lubricating oil cooling system comprises: an oil tank for containing lubricating oil; an oil pump for driving the lubricating oil in the oil tank; a first filter assembly and a second filter assembly, both of which are in communication with the oil tank, and are arranged in parallel; an oil cooling coil downstream of the first filter assembly and the second filter assembly, and a heat exchange coil for cooling the lubricating oil in the oil cooling coil; lubricating oil flowing through the cooler is supplied to a plurality of lubricating points, and then flows back to the oil tank after flowing through the lubricating points.

2. The lubricating oil cooling system of claim 1, wherein, The lubricating oil cooling system further comprises a bypass pipeline, one end of which is in communication with the oil tank, and the other end of which is in communication with the lubricating points, and the bypass pipeline is used for bypassing the first filter assembly, the second filter assembly and the oil cooling coil.

3. The lubricating oil cooling system of claim 2, wherein, The lubricating oil cooling system further comprises a temperature sensor arranged in the oil tank, and the temperature sensor is used for detecting the temperature of the oil tank.

4. The lubricating oil cooling system of claim 2, wherein, If the temperature of the oil tank is greater than a first preset value, the bypass pipeline is closed.

5. The lubricating oil cooling system of claim 2, wherein, If the temperature of the oil tank is not greater than a second preset value, the bypass pipeline is opened, and the lubricating oil flows from the oil tank to the lubricating points through the bypass pipeline.

6. The lubricating oil cooling system of claim 1, wherein, The lubricating oil cooling system further comprises two pre-filter pressure gauges, both of which are arranged upstream of the first filter assembly and the second filter assembly.

7. The lubricating oil cooling system of claim 1, wherein, The lubricating oil cooling system further comprises two post-filter pressure gauges, both of which are arranged downstream of the first filter assembly and the second filter assembly.

8. A compressor characterized by, The compressor comprises the lubricating oil cooling system according to any one of claims 1-7, and the lubricating oil cooling system is used for lubricating the lubricating points of the compressor.

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