Compressor lubricating oil online filtering and detecting integrated device

Abstract

The utility model relates to the technical field of online filtration and detection of compressor lubricating oil, in particular to an online filtration and detection integrated device for compressor lubricating oil. Comprising an oil gas cylinder, a first stop valve, a pipeline filter, an oil pump, a primary particle filter, a final particle filter, a primary dewatering filter, a final dewatering filter, a second stop valve, a first pressure sensor, a second pressure sensor, a third pressure sensor, a lubricating oil granularity detector, a fourth pressure sensor and a fifth pressure sensor, by means of the design, the service life of lubricating oil is prolonged to 12000 hours, the service life of an oil filter on an oil way in a screw unit is prolonged to 6000 hours, and meanwhile the service life of a bearing of a screw main machine can be prolonged by 4-5 times. The manual maintenance frequency of the oil injection screw compressor is reduced, the stability of long-term operation of the product is effectively improved, and economic value and social benefit are brought.

Description

Technical Field

[0001] The utility model relates to the technical field of online filtering and detection of compressor lubricating oil, in particular to an integrated device for online filtering and detection of compressor lubricating oil. Background Art

[0002] The oil-injected screw compressor commonly used on the market, the oil-gas mixture discharged from the main engine of the oil-injected screw compressor is separated by cyclone oil and gas in the oil-gas cylinder, and the separated lubricating oil is deposited at the bottom of the oil-gas cylinder. The lubricating oil flows by pressure difference and is filtered through the temperature control valve 25, the lubricating oil cooler 26, the compressed air cooler 22, the oil filter 23, and the air filter 20 to supply oil to the main engine of the compressor. The oil is supplied to the internal oil passage of the screw main engine 19 through the action of the motor 18 for bearing lubrication, sealing between the screw rotors, cooling, and noise reduction, such as Figure 1 shown.

[0003] However, the number of solid particles and the water content in the circulating lubricating oil gradually increase, resulting in the service life of the lubricating oil being generally around 4000 hours, and the service life of the oil filter on the oil circuit in the screw unit being generally around 2000 hours. Utility Model Content

[0004] The purpose of the utility model is to provide an integrated online filtering and detection device for compressor lubricating oil, aiming to solve the technical problem in the prior art that the number of solid particles and the water content in the circulating lubricating oil gradually increase, resulting in the service life of the lubricating oil being usually around 4000 hours, and the service life of the oil filter on the oil circuit in the screw unit being usually around 2000 hours.

[0005] To achieve the above-mentioned purpose, the utility model adopts an integrated device for online filtering and detecting of compressor lubricating oil, including an oil and gas cylinder, the lower part of which is connected to a first stop valve, one end of which is connected to a pipeline filter, one end of which is connected to an oil pump, one end of which is connected to a primary particle filter, one end of which is connected to a final particle filter, one end of which is connected to a primary water removal filter, one end of which is connected to a final water removal filter, one end of which is connected to a second stop valve, the oil pump and the primary particle filter are connected A first pressure sensor is arranged between the particle filters, a second pressure sensor is arranged between the primary particle filter and the final particle filter, a third pressure sensor and a lubricating oil particle size detector are arranged between the final particle filter and the primary water removal filter, a fourth pressure sensor is arranged between the primary water removal filter and the final water removal filter, a fifth pressure sensor and a lubricating oil water content detector are arranged between the final water removal filter and the second stop valve, a PLC control and analysis display system is arranged on the oil pump, and the second stop valve is connected to the oil and gas cylinder and is located at the upper part of the oil and gas cylinder.

[0006] Wherein, the first pressure sensor, the second pressure sensor and the third pressure sensor are all electrically connected to the PLC control and analysis display system.

[0007] Wherein, the lubricating oil particle size detector and the lubricating oil water content detector are both electrically connected to the PLC control and analysis display system, and the fourth pressure sensor is electrically connected to the lubricating oil particle size detector.

[0008] Among them, the lower part of the oil and gas cylinder, the first stop valve, the pipeline filter, the oil pump, the primary particle filter, the final particle filter, the primary water removal filter, the final water removal filter, the second stop valve and the upper part of the oil and gas cylinder are connected by pipelines.

[0009] The first pressure sensor, the second pressure sensor, the third pressure sensor, the fourth pressure sensor and the fifth pressure sensor detect the pressure difference value of each filter.

[0010] The utility model discloses an integrated online filtering and detecting device for lubricating oil of a compressor, comprising an oil and gas cylinder, a first stop valve, a pipeline filter, an oil pump, a primary particle filter, a final particle filter, a primary water removal filter, a final water removal filter, a second stop valve, a first pressure sensor, a second pressure sensor, a third pressure sensor, a lubricating oil particle size detector, a fourth pressure sensor, a fifth pressure sensor, a lubricating oil water content detector and a PLC control and analysis display system. The design can quickly filter out most of the solid particles in the lubricating oil online, reduce the accuracy level of the lubricating oil to the requirement of level 4 of the NAS1638 standard, and use a water absorption filter to remove the water in the lubricating oil so that the water content in the lubricating oil is below 5ppm; this method can extend the service life of the lubricating oil from the usual 4000 hours to about 12000 hours, extend the service life of the oil filter on the oil circuit in the screw unit from about 2000 hours to about 6000 hours, and extend the bearing life of the screw main engine by 4 to 5 times; reduce the number of manual maintenance times of the oil injection screw compressor, effectively improve the stability of the long-term operation of the product, and bring economic value and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a simplified flow chart of the prior art oil-injected screw compressor.

[0013] Figure 2 The utility model is a flow chart of an integrated device for online filtering and detecting compressor lubricating oil.

[0014] 1-Oil and gas cylinder, 2-First stop valve, 3-Pipeline filter, 4-Oil pump, 5-First pressure sensor, 6-Primary particle filter, 7-Second pressure sensor, 8-Final particle filter, 9-Third pressure sensor, 10-Primary water removal filter, 11-Fourth pressure sensor, 12-Final water removal filter, 13-Fifth pressure sensor, 14-Lubricating oil water content detector, 15-Second stop valve, 16-Lubricating oil particle size detector, 17-PLC control and analysis display system, 18-Motor, 19-Screw main unit, 20-Air filter, 21-Oil and gas cylinder device, 22-Compressed air cooler, 23-Oil filter, 24-Oil and gas cylinder oil drain port, 25-Temperature control valve, 26-Lubricating oil cooler. DETAILED DESCRIPTION

[0015] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0016] See also Figure 2 The utility model provides an integrated online filtering and detecting device for compressor lubricating oil, comprising an oil-gas cylinder 1, a first stop valve 2 being connected to the lower part of the oil-gas cylinder 1, one end of the first stop valve 2 being connected to a pipeline filter 3, one end of the pipeline filter 3 being connected to an oil pump 4, one end of the oil pump 4 being connected to a primary particle filter 6, one end of the primary particle filter 6 being connected to a final particle filter 8, one end of the final particle filter 8 being connected to a primary water removal filter 10, one end of the primary water removal filter 10 being connected to a final water removal filter 12, one end of the final water removal filter 12 being connected to a second stop valve 15, and a gap between the oil pump 4 and the primary particle filter 6 A first pressure sensor 5 is arranged between the primary particle filter 6 and the final particle filter 8, a second pressure sensor 7 is arranged between the primary particle filter 6 and the final particle filter 8, a third pressure sensor 9 and a lubricating oil particle size detector 16 are arranged between the final particle filter 8 and the primary water removal filter 10, a fourth pressure sensor 11 is arranged between the primary water removal filter 10 and the final water removal filter 12, a fifth pressure sensor 13 and a lubricating oil water content detector are arranged between the final water removal filter 12 and the second stop valve 15, a PLC control and analysis display system 17 is arranged on the oil pump 4, and the second stop valve 15 is connected to the oil and gas cylinder 1 and is located at the upper part of the oil and gas cylinder 1.

[0017] In this embodiment, the present design can quickly filter out most of the solid particles in the lubricating oil online, and reduce the accuracy level of the lubricating oil to the requirement of level 4 of the NAS1638 standard. At the same time, the water absorption filter can be used to remove the water in the lubricating oil so that the water content in the lubricating oil is below 5ppm. This method can extend the service life of the lubricating oil from the usual 4000 hours to about 12000 hours, and the life of the oil filter on the oil circuit in the screw unit from about 2000 hours to about 6000 hours. At the same time, the bearing life of the screw main unit can be extended by 4 to 5 times. The number of manual maintenance times of the oil-injected screw compressor is reduced, and the long-term operation stability of the product is effectively improved, which brings economic value and social benefits. It should be noted that the PLC control and analysis display system 17 is a prior art, and its structure will not be described in detail here.

[0018] Furthermore, the first pressure sensor 5 , the second pressure sensor 7 and the third pressure sensor 9 are all electrically connected to the PLC control and analysis display system 17 .

[0019] In this embodiment, the detected situation can be sent directly to the PLC control and analysis display system 17 through the above connection, so that the operator can quickly control it.

[0020] Furthermore, the lubricating oil particle size detector 16 and the lubricating oil water content detector are both electrically connected to the PLC control and analysis display system 17 , and the fourth pressure sensor 11 is electrically connected to the lubricating oil particle size detector 16 .

[0021] Furthermore, pipelines are connected between the lower part of the oil and gas cylinder 1, the first stop valve 2, the pipeline filter 3, the oil pump 4, the primary particle filter 6, the final particle filter 8, the primary water removal filter 10, the final water removal filter 12, the second stop valve 15 and the upper part of the oil and gas cylinder 1.

[0022] In this embodiment, the provision of the pipeline can facilitate the guidance of the fluid.

[0023] Furthermore, the first pressure sensor 5 , the second pressure sensor 7 , the third pressure sensor 9 , the fourth pressure sensor 11 and the fifth pressure sensor 13 detect the pressure difference value of each filter.

[0024] In this embodiment, the detection accuracy can be improved by setting a pressure sensor, and the detection efficiency can also be improved; when the pressure difference value reaches above 0.7 bar, each filter is replaced; the above-mentioned operation control steps and data acquisition are finally presented by the PLC control and analysis display system 17.

[0025] In this embodiment, by opening the first stop valve 2 and the second stop valve 15 and starting the oil pump 4 at the same time, the lubricating oil to be filtered flows out from the oil discharge port of the oil and gas cylinder 1 and passes through the pipeline filter 3 to remove most of the particles larger than 40um, and then passes through the primary particle filter 6 to remove most of the particles larger than 20um, and then passes through the final particle filter 8 to remove most of the particles larger than 8um. At this time, the water content of the lubricating oil is reduced to below 20ppm by passing through the primary water removal filter 10, and finally passes through the final water removal filter 12 to reduce the water content of the lubricating oil to below 5ppm, and finally the lubricating oil flows to the refueling port of the oil and gas cylinder 1.

[0026] In this embodiment, the lubricating oil is repeatedly cycled for about 20 minutes. It should be noted that the cycle time is based on the amount of lubricating oil, the amount of solid particles, and the water content in the lubricating oil. At the same time, the lubricating oil particle size detector 16 and the lubricating oil water content detector 14 are used to online detect the solid particles and the water content of the lubricating oil. When the desired solid particles are below 8um and the water content of the lubricating oil is below 5ppm, the cyclic filtration ends.

[0027] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A compressor lubricating oil online filtering and detection integrated device, characterized in that: It comprises an oil and gas cylinder, the lower part of which is connected with a first stop valve, one end of which is connected with a pipeline filter, one end of which is connected with an oil pump, one end of which is connected with a primary particle filter, one end of which is connected with a final particle filter, one end of which is connected with a primary water removal filter, one end of which is connected with a final water removal filter, one end of which is connected with a primary water removal filter, one end of which is connected with a final water removal filter, one end of which is connected with a second stop valve, a first pressure sensor is arranged between the oil pump and the primary particle filter, a second pressure sensor is arranged between the primary particle filter and the final particle filter, a third pressure sensor and a lubricating oil particle size detector are arranged between the final particle filter and the primary water removal filter, a fourth pressure sensor is arranged between the primary water removal filter and the final water removal filter, a fifth pressure sensor and a lubricating oil water content detector are arranged between the final water removal filter and the second stop valve, a PLC control and analysis display system is arranged on the oil pump, and the second stop valve is communicated with the oil and gas cylinder and is located at the upper part of the oil and gas cylinder.

2. The compressor lubricating oil online filtering and detection integrated device according to claim 1, characterized in that: The first pressure sensor, the second pressure sensor and the third pressure sensor are all electrically connected to the PLC control and analysis display system.

3. The compressor lubricating oil online filtering and detection integrated device according to claim 2, characterized in that: The lubricating oil particle size detector and the lubricating oil water content detector are both electrically connected to the PLC control and analysis display system, and the fourth pressure sensor is electrically connected to the lubricating oil particle size detector.

4. The compressor lubricating oil online filtering and detection integrated device according to claim 3, characterized in that: The lower part of the oil and gas cylinder, the first stop valve, the pipeline filter, the oil pump, the primary particle filter, the final particle filter, the primary water removal filter, the final water removal filter, the second stop valve and the upper part of the oil and gas cylinder are connected by pipelines.

5. The compressor lubricating oil online filtering and detection integrated device according to claim 4, characterized in that: The first pressure sensor, the second pressure sensor, the third pressure sensor, the fourth pressure sensor, and the fifth pressure sensor detect differential pressure values ​​of the filters.

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