Lubricating oil supply assembly of reciprocating compressor

Abstract

The utility model discloses a lubricating oil supply assembly of a reciprocating compressor, and belongs to the technical field of compressor lubricating oil. A lubricating oil supply assembly of a reciprocating compressor comprises a lubricating oil tank, an oil pump, a cooler and a filter which are sequentially connected in the conveying direction of an oil conveying pipe, a temperature adjusting unit is arranged on one side of the lubricating oil tank, the input end of the temperature adjusting unit is communicated with the output end of the compressor, and the cold air end of the temperature adjusting unit is communicated with the cooler; the compressor has the advantages that the utilization rate of compressed air sent by the compressor is increased, and the cooling effect of lubricating oil on the compressed air is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to compressor lubricating oil supply technical field especially relates to a reciprocating compressor's lubricating oil supply assembly. BACKGROUND

[0002] Compared with other types of compressor lubricating oil supply system, the reciprocating compressor lubricating oil supply system has the characteristics of high pressure lubrication, combination of splash and forced lubrication, high lubricating oil consumption, high pollution risk, high temperature control requirement, complex oil circuit design and high maintenance frequency.

[0003] Among them, about lubricating oil pollution wind direction high, temperature control requirement high problem, reciprocating compressor lubricating oil supply system mostly uses high -efficient filter and cooler, wherein the cooler mostly uses the circulation liquid cooling mode to cool the lubricating oil, relies on external equipment to supply the cold quantity, is not favorable to the independent operation of system. In addition, large -scale industrial reciprocating compressor usually designs long -time operation to avoid the performance and life influence that the frequent start -stop can cause, when the compressed air output of compressor is too much, the excess compressed air is often discharged through the pressure relief mode, causes a certain degree of waste. SUMMARY

[0004] The utility model discloses a reciprocating compressor's lubricating oil supply assembly to solve the problem that the cooler in the lubricating oil supply system of the reciprocating compressor in the prior art relies on external equipment to supply the cold quantity, is not favorable to the independent operation of system.

[0005] In order to realize the above -mentioned purpose, the utility model adopts the following technical scheme:

[0006] A reciprocating compressor's lubricating oil supply assembly, including lubricating oil tank, oil pump, cooler, filter that connect in proper order along the conveying direction of oil pipe, the one side of lubricating oil tank is provided with temperature regulating unit, the input end of temperature regulating unit is connected with the output end of compressor, and the cold gas end of temperature regulating unit is connected with cooler.

[0007] Further, the temperature regulating unit includes a cold and hot temperature regulating piece, a vortex tube is arranged in the inside of the cold and hot temperature regulating piece, the input end of the vortex tube is communicated with the compressor through an input pipe, the cold gas end of the vortex tube is communicated with the cooler, and a first heat preservation layer is arranged on the outside of the vortex tube.

[0008] Further, the cold gas end of the vortex tube is communicated with a second pipeline and a fourth pipeline, the second pipeline is communicated with the cooler, and the fourth pipeline is used for pressure relief.

[0009] Further, the cold gas end of the vortex tube is communicated with a third pipeline, and a temperature adjusting tank is arranged at a position away from the vortex tube on the oil conveying pipeline close to the oil supply port.

[0010] Further, the temperature adjusting tank comprises a tank body, and a spiral part wound by the third pipeline is arranged in the tank body and wound on the surface of the oil conveying pipeline.

[0011] Further, the hot gas end of the vortex tube is communicated with a sixth pipeline and a seventh pipeline, the sixth pipeline is used for pressure relief, the seventh pipeline is communicated with an eighth pipeline at a position away from the vortex tube, and a plurality of eighth pipelines extend into the lubricating oil tank.

[0012] Further, the input pipeline is provided with a compressed air storage tank.

[0013] Compared with the prior art, the lubricating oil supply assembly of the reciprocating compressor has the following beneficial effects:

[0014] The lubricating oil supply assembly of the reciprocating compressor is used, both ends of the oil conveying pipeline are connected to the lubricating oil system of the reciprocating compressor, the lubricating oil in the reciprocating compressor first flows into the lubricating oil tank, and then is delivered by the oil pump, passes through the cooler and the filter, and returns to the reciprocating compressor, and the temperature adjusting unit converts the compressed air input from the output end of the compressor into cold air and sends the cold air into the cooler, so that the lubricating oil is cooled, thereby reducing the dependence on external equipment and improving the utilization rate of compressed air.

[0015] Other advantages, objects and features of the present application will be apparent to those skilled in the art from the following description; and to some extent, it will be obvious to those skilled in the art based on the study of the following; or can be taught from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front right direction three-dimensional schematic view of the overall structure of the present application;

[0017] Figure 2 It is a left rear direction three-dimensional schematic view of the overall structure of the present application;

[0018] Figure 3 It is a three-dimensional schematic view of the temperature adjusting unit structure of the present application;

[0019] Figure 4 It is a top view schematic view of the temperature adjusting unit structure of the present application;

[0020] Figure 5 It is a schematic view of the internal structure of the temperature adjusting unit of the present application.

[0021] Fig.:

[0022] 1, lubricating oil tank; 2, oil pump; 3, oil delivery pipe; 4, cooler; 5, temperature regulating unit; 501, cold and hot temperature regulating piece; 502, first pipeline; 503, second pipeline; 504, third pipeline; 505, fourth pipeline; 506, fifth pipeline; 507, sixth pipeline; 508, seventh pipeline; 509, eighth pipeline; 510, spiral part; 511, temperature regulating tank; 512, tank body; 6, filter; 7, oil return port; 8, oil supply port; 9, vortex tube; 901, input pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0024] Referring to Figures 1-5 The utility model discloses a lubricating oil supply assembly of reciprocating compressor, including lubricating oil tank 1, oil pump 2, cooler 4, filter 6 that connect in proper order along the delivery direction of oil delivery pipe 3, oil pump 2 is the rotor pump driven by motor, cooler 4 is the tank type structure, filter 6 is double cylinder filter.

[0025] Lubricating oil tank 1 is installed with oil return port 7, and the lubricating oil in the compressor flows back to lubricating oil tank 1 through oil return port 7, and one side of lubricating oil tank 1 is installed with temperature regulating unit 5, temperature regulating unit 5 is heating and cooling integrated temperature regulating structure, the input end of temperature regulating unit 5 is communicated with the output end of the compressor, and the compressed air sent by the compressor itself is used to provide power for temperature regulating unit 5, so as to improve the utilization rate of compressed air, and the cold end of temperature regulating unit 5 is communicated with cooler 4, and the cold gas sent by temperature regulating unit 5 enters cooler 4, and the lubricating oil in oil delivery pipe 3 is cooled once by cooler 4.

[0026] Temperature regulating unit 5 includes cold and hot temperature regulating piece 501, and vortex tube 9 is installed in the inside of cold and hot temperature regulating piece 501, vortex tube 9 has three ports, which are input end, cold gas end and hot gas end, compressed air is input into the inside of vortex tube 9 from input end, then cold gas is output from cold gas end, and hot gas is output from hot gas end. The input end of vortex tube 9 is communicated with the compressor through input pipe 901, and the cold gas end of vortex tube 9 is communicated with cooler 4.

[0027] The outside of vortex tube 9 is installed with first heat preservation layer, and the first heat preservation layer is filled between the shell of cold and hot temperature regulating piece 501 and vortex tube 9, which is used to reduce the heat loss of vortex tube 9 and reduce the noise at the same time.

[0028] The compressed air storage tank is installed on the input pipe 901, and the compressed air storage tank is used to store compressed air. The inlet and outlet of the compressed air storage tank are connected with the compressor and the vortex tube 9 through the input pipe 901 respectively. The compressor fills the compressed air storage tank with compressed air, which is used to input compressed air into the vortex tube 9 before starting the compressor.

[0029] The cold air end of the vortex tube 9 is connected with the first pipe 502. The first pipe 502 is connected with the second pipe 503, the third pipe 504 and the fourth pipe 505. The second pipe 503 is connected with the cooler 4, and the fourth pipe 505 is used for pressure relief. The second pipe 503 is always open, and the fourth pipe 505 is always closed. The valve is installed on the fourth pipe 505, and the fourth pipe 505 is used to discharge excess cold air from the cold air end of the vortex tube 9.

[0030] The third pipe 504 is connected with the cold air end of the vortex tube 9, and the valve is also installed on the third pipe 504. The third pipe 504 is opened or closed according to the need. The temperature adjusting tank 511 is installed on the third pipe 504 away from the vortex tube 9. The temperature adjusting tank 511 is wrapped around the oil delivery pipe 3 near the oil supply port 8. The temperature adjusting tank 511 is located on the oil delivery pipe 3 connected with the output end of the filter 6. The temperature adjusting tank 511 is used to further reduce the temperature of the lubricating oil in the oil delivery pipe 3 under the premise of meeting the needs of the compressor. When the viscosity of the lubricating oil meets the requirements of the compressor, more heat in the compressor can be taken away, and the internal components of the compressor can be cooled better.

[0031] Here, the temperature change process of the lubricating oil is that the lubricating oil flowing out of the compressor plays a role in lubricating and cooling the compressor, and is easily contaminated by impurities in the air inside the compressor. Therefore, the temperature of the lubricating oil flowing out of the compressor is high during the circulation process, and the lubricating oil needs to be filtered. However, because the lubricating oil has high flowability and low viscosity in a high temperature state, it is difficult for the filter to filter out impurities in the lubricating oil. Therefore, the temperature of the lubricating oil is reduced to meet the filtering needs and to cool the internal components of the compressor after the subsequent circulation.

[0032] At the same time, the temperature of the lubricating oil entering the filter and the compressor should not be too low. Because the low temperature makes the lubricating oil have high viscosity and low flowability, which can block the filter and the compressor. Therefore, the appropriate temperature can ensure that the lubricating oil has suitable flowability and viscosity.

[0033] The present application uses the cooler 4 to cool the lubricating oil once, so that the temperature of the lubricating oil meets the filtering requirement of the filter 6. After the filtered lubricating oil enters the compressor, the flowability of the lubricating oil will be quickly improved due to the high temperature environment in the compressor. Therefore, the lubricating oil mainly meets the requirement of smoothly entering the compressor before entering the compressor. Here, the flowability requirement of the lubricating oil is lower than the flowability requirement of the lubricating oil of the filter 6. Therefore, the temperature adjusting tank 511 is used to cool the lubricating oil twice, so as to further improve the cooling effect of the lubricating oil on the inside of the compressor without affecting the use of the filter 6.

[0034] The temperature adjusting tank 511 includes a tank body 512. The oil supply pipe 3 penetrates the tank body 512. The tank body 512 is internally provided with a spiral part 510 which is spirally wound by the third pipeline 504. The spiral part 510 is wound on the surface of the oil supply pipe 3. The third pipeline 504 transmits cold energy to the lubricating oil in the oil supply pipe 3 through the spiral part 510, so as to cool the lubricating oil twice.

[0035] The second heat preservation layer is filled between the outside of the spiral part 510 and the tank body 512, so as to reduce the cold energy loss of the spiral part 510.

[0036] The second pipeline 503 in the cooler 4 is also spirally wound, and then wound on the surface of the oil supply pipe 3 in the cooler 4. The structure is similar to the spiral part 510.

[0037] The hot gas end of the vortex tube 9 is communicated with the fifth pipeline 506. The fifth pipeline 506 is communicated with the sixth pipeline 507 and the seventh pipeline 508. The valve is also installed on the sixth pipeline 507 and the seventh pipeline 508. The pressure is released through the sixth pipeline 507.

[0038] The end of the seventh pipeline 508 away from the vortex tube 9 is communicated with the eighth pipeline 509. The plurality of eighth pipelines 509 extend into the inside of the lubricating oil tank 1. The eighth pipeline 509 is used as a heat dissipation pipeline, which is used to heat the lubricating oil in the lubricating oil tank 1 by the hot gas discharged from the vortex tube 9. In winter or other low temperature environment, the lubricating oil is preheated.

[0039] In the present application, the outside of the first pipeline 502, the second pipeline 503, the third pipeline 504, the fifth pipeline 506, the sixth pipeline 507 and the seventh pipeline 508 in the temperature adjusting unit 5 is wrapped with the third heat preservation layer. The outside of the fourth pipeline 505 except the part in the cooler 4 and the temperature adjusting tank 511 is also wrapped with the third heat preservation layer.

[0040] Working principle: when in use, the lubricating oil in the compressor is returned to the lubricating oil tank 1 through the oil return port 7, then pumped to the cooler 4 by the oil pump 2 to cool the lubricating oil once, and after the lubricating oil is cooled to a temperature suitable for the filter 6 to filter, the lubricating oil is filtered by the filter 6, then flows through the temperature adjusting tank 511 to be cooled again, and finally flows into the interior of the compressor through the oil supply port 8.

[0041] In the temperature adjusting unit 5, compressed air is first sent into the vortex tube 9 from the compressed air storage tank, (in a low temperature environment, hot gas is sent out from the hot gas end of the vortex tube 9 through the seventh pipeline 508 to heat the lubricating oil in the lubricating oil tank 1 to a suitable temperature, and then the seventh pipeline 508 is closed), and then the oil pump 2 is started to pump the lubricating oil to circulate in the lubricating oil system, and the cold gas end of the vortex tube 9 outputs cold gas to the cooler 4 and the temperature adjusting tank 511 to continue to cool the lubricating oil.

[0042] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical scope disclosed by the present application, which should be covered by the protection scope of the present application.

[0043] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0044] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A lubricating oil supply assembly for a reciprocating compressor, characterized in that, The system includes a lubricating oil tank (1), an oil pump (2), a cooler (4), and a filter (6) connected sequentially along the conveying direction of the oil pipeline (3). A temperature regulating unit (5) is provided on one side of the lubricating oil tank (1). The input end of the temperature regulating unit (5) is connected to the output end of the compressor, and the cold air end of the temperature regulating unit (5) is connected to the cooler (4).

2. The lubricating oil supply assembly for a reciprocating compressor according to claim 1, characterized in that, The temperature control unit (5) includes a hot and cold temperature control component (501). The hot and cold temperature control component (501) is provided with a vortex tube (9). The input end of the vortex tube (9) is connected to the compressor through an input pipe (901). The cold air end of the vortex tube (9) is connected to the cooler (4). The outer side of the vortex tube (9) is provided with a first heat insulation layer.

3. The lubricating oil supply assembly for a reciprocating compressor according to claim 2, characterized in that, The cold air end of the vortex tube (9) is connected to a second pipe (503) and a fourth pipe (505). The second pipe (503) is connected to the cooler (4), and the fourth pipe (505) is used for pressure relief.

4. The lubricating oil supply assembly for a reciprocating compressor according to claim 3, characterized in that, The cold air end of the vortex tube (9) is connected to a third pipeline (504). A temperature regulating tank (511) is installed in the third pipeline (504) away from the vortex tube (9). The temperature regulating tank (511) is wrapped around the oil pipeline (3) near the oil supply port (8).

5. The lubricating oil supply assembly for a reciprocating compressor according to claim 4, characterized in that, The temperature regulating tank (511) includes a tank body (512), and the inside of the tank body (512) is provided with a spiral part (510) formed by winding a third pipeline (504), and the spiral part (510) is wound around the surface of the oil pipeline (3).

6. The lubricating oil supply assembly for a reciprocating compressor according to claim 2, characterized in that, The hot gas end of the vortex tube (9) is connected to the sixth pipe (507) and the seventh pipe (508). The pressure is released through the sixth pipe (507). The end of the seventh pipe (508) away from the vortex tube (9) is connected to the eighth pipe (509). Multiple eighth pipes (509) extend into the interior of the lubricating oil tank (1).

7. The lubricating oil supply assembly for a reciprocating compressor according to claim 6, characterized in that, A compressed air accumulator is installed on the input pipe (901).

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