Quick alkali washing device for refrigerant oil

Abstract

The utility model discloses a refrigerant oil rapid alkali washing device which comprises an alkali washing mixing pipeline connected with an alkali washing tower through a first conveying pipeline, and the alkali washing mixing pipeline is fixedly communicated with an alkali liquor conveying pipeline and a refrigerant oil conveying pipeline respectively; wherein a mixing part used for rapidly neutralizing refrigerant oil and alkali liquor is installed in the alkali washing mixing pipeline, a driving motor is started to drive a spiral stirring rod to rotate at a high speed, and then the alkali liquor and the refrigerant oil are conveyed into the alkali washing mixing pipeline through an alkali liquor conveying pipeline and a refrigerant oil conveying pipeline at the same time; the spiral stirring rod rotating at a high speed can stir and mix cooling oil and alkali liquor which enter the alkali washing mixing pipeline at the same time, the neutralization speed of the cooling oil and the alkali liquor is increased, the cooling oil and the alkali liquor which are evenly mixed enter the alkali washing tower from the first conveying pipeline for standing layering, rapid alkali washing of the cooling oil can be completed, and the alkali washing efficiency is improved. The processing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling oil alkali washing, in particular to a device for rapid alkali washing of refrigeration oil. Background Art

[0002] Refrigeration oil is the oil used to lubricate the moving parts in the refrigeration compressor. It is called refrigeration oil, also known as lubricating oil. Waste refrigeration oil is first pumped into a sedimentation tank, heated and settled in the tank for a certain period of time, and then pumped into a refining tank with a steam heating tube and a stirrer after removing mechanical impurities and moisture. It is first pickled in the tank, and a certain amount of concentrated sulfuric acid is added to the tank. When adding acid, the stirrer is started to stir, and then it is settled for a certain period of time to separate the acid residue. Pickling can sometimes be divided into two times. After the pickling is completed, it is washed with water. At this time, water is added to the tank, stirring at the same time, and then the water residue is settled and released. This is washed 2 to 3 times, and then alkaline washing is done. Alkaline solution is added to the tank, stirring at the same time, and then it is still, settled and separated from the alkaline residue, and then washed with water 2 to 3 times to make the oil neutral, and finally filtered to obtain regenerated refrigeration oil.

[0003] In the prior art, during the alkaline washing process of cooling oil, liquid alkali and refrigeration oil are placed in an alkali washing tower and stirred to complete the alkaline washing of the refrigeration oil. This method requires the liquid alkali and the refrigeration oil to be stirred for a long time in the alkali washing tower to fully neutralize the liquid alkali and the refrigeration oil, and then stand still to separate the layers to complete the alkaline washing of the refrigeration oil. The alkaline washing efficiency is low. Utility Model Content

[0004] The utility model aims to provide a device for rapid alkali washing of refrigeration oil, which solves the problem of low alkali washing efficiency in the prior art that the cooling oil needs to be stirred for a long time in the alkali washing tower with liquid alkali and refrigeration oil through an alkali washing mixing pipeline, a first conveying pipeline of an alkali washing tower, an alkali liquid conveying pipeline, a refrigeration oil conveying pipeline and a mixing component during the alkali washing process.

[0005] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include: a device for rapid alkali washing of refrigeration oil, including: an alkali washing mixing pipe, the alkali washing mixing pipe is connected to an alkali washing tower through a first conveying pipe, and the alkali washing mixing pipe is fixedly connected to an alkali liquid conveying pipe and a refrigeration oil conveying pipe respectively; wherein, a mixing component for rapidly neutralizing the refrigeration oil and the alkali liquid is installed inside the alkali washing mixing pipe.

[0006] As a preferred technical solution, it also includes a flow meter, which is fixedly installed on the alkali solution delivery pipeline.

[0007] As a preferred technical solution, the waste liquid outlet of the alkali washing tower is connected to an alkali liquid tank through a second delivery pipeline, and the liquid outlet of the alkali liquid tank is fixedly connected to one end of the alkali liquid delivery pipeline;

[0008] Wherein, a circulation pump is fixedly installed on the second delivery pipeline, and a delivery pump is fixedly installed on the alkali solution delivery pipeline.

[0009] As a preferred technical solution, the mixing component includes a driving motor fixedly mounted at one end of the alkali washing mixing pipe, the output shaft of the driving motor extends into the interior of the alkali washing mixing pipe and is fixedly connected to a spiral stirring rod through a coupling.

[0010] As a preferred technical solution, a first bearing is fixedly mounted on one end of the alkali washing mixing pipe, and the output shaft of the driving motor is fixedly mounted in the inner ring of the first bearing.

[0011] As a preferred technical solution, the first bearing is a sealed bearing.

[0012] As a preferred technical solution, a second bearing is fixedly mounted on one end of the inner wall of the alkali washing mixing pipe, and one end of the spiral stirring rod is fixedly mounted in the inner ring of the second bearing.

[0013] As a preferred technical solution, the liquid inlet and the liquid outlet of the alkali washing mixing pipeline are respectively located on the side walls of the pipeline.

[0014] As a preferred technical solution, the gap between the outer periphery of the spiral blades of the spiral stirring rod and the inner wall of the alkaline washing mixing pipe is not less than 1 cm.

[0015] As a preferred technical solution, one end of the spiral stirring rod is located at the inlet of the refrigeration oil and the alkali solution, and the other end of the spiral stirring rod is located at the outlet of the refrigeration oil and the alkali solution.

[0016] The utility model has at least the following beneficial effects:

[0017] The utility model provides a device for rapid alkali washing of refrigeration oil. The device starts a driving motor to drive a spiral stirring rod to rotate at a high speed, and then simultaneously inputs the alkali liquid and the refrigeration oil into the interior of an alkali washing mixing pipe through an alkali liquid conveying pipe and a refrigeration oil conveying pipe. The spiral stirring rod rotating at a high speed can stir and mix the cooling oil and the alkali liquid that simultaneously enter the interior of the alkali washing mixing pipe, accelerate the neutralization speed of the cooling oil and the alkali liquid, and the mixed cooling oil and alkali liquid enter the interior of an alkali washing tower from a first conveying pipe. After entering the alkali washing tower, the neutralized cooling oil and alkali liquid only need to be allowed to stand and separate into layers, thereby completing rapid alkali washing of the refrigeration oil and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 This is a flow chart of a device for rapid alkaline washing of refrigeration oil according to the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of an alkali washing mixing pipeline of a device for rapid alkali washing of refrigeration oil according to the utility model;

[0021] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of an alkali washing mixing pipeline of a device for rapid alkali washing of refrigeration oil.

[0022] Description of Figure Numbers:

[0023] 1. Alkali washing mixing pipeline; 11. Driving motor; 12. Screw stirring rod; 13. First bearing; 14. Second bearing; 2. Alkali washing tower; 3. First conveying pipeline; 4. Alkali liquid conveying pipeline; 5. Refrigeration oil conveying pipeline; 6. Flow meter; 7. Alkali liquid tank; 8. Circulation pump; 9. Conveying pump; 10. Second conveying pipeline. DETAILED DESCRIPTION

[0024] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0025] Example

[0026] Please refer to Figures 1 to 3 As shown, an embodiment of the utility model provides a device for rapid alkali washing of refrigeration oil, comprising: an alkali washing mixing pipeline 1, the alkali washing mixing pipeline 1 is connected to an alkali washing tower 2 through a first conveying pipeline 3, and an alkali liquid conveying pipeline 4 and a refrigeration oil conveying pipeline 5 are fixedly connected to the alkali washing mixing pipeline 1, respectively; wherein, a mixing component for rapid neutralization of the refrigeration oil and the alkali liquid is installed inside the alkali washing mixing pipeline 1, and the mixing component can stir and mix the cooling oil and the alkali liquid entering the alkali washing mixing pipeline 1 at the same time, accelerate the neutralization speed of the cooling oil and the alkali liquid, and can complete the rapid alkali washing of the refrigeration oil, thereby improving the processing efficiency.

[0027] The flow meter 6 is also included. The flow meter 6 is fixedly installed on the alkali solution delivery pipeline 4. The flow meter 6 can detect the delivery volume of the alkali solution in real time and can effectively control the delivery volume of the alkali solution. The model of the flow meter 6 is DN10-DN1200.

[0028] Among them, the waste liquid outlet of the alkali washing tower 2 is connected to the alkali liquid tank 7 through the second conveying pipe 10, and the liquid outlet of the alkali liquid tank 7 is fixedly connected to one end of the alkali liquid conveying pipe 4; wherein, a circulation pump 8 is fixedly installed on the second conveying pipe 10, and a conveying pump 9 is fixedly installed on the alkali liquid conveying pipe 4. The alkali liquid waste liquid precipitated inside the alkali washing tower 2 is re-conveyed to the alkali liquid tank 7 for proportioning and use through the circulation pump 8, thereby completing the reuse of the waste liquid and saving the processing cost.

[0029] Among them, the mixing component includes a driving motor 11 fixedly installed at one end of the alkali washing mixing pipe 1, the output shaft of the driving motor 11 extends into the interior of the alkali washing mixing pipe 1 and is fixedly connected to a spiral stirring rod 12 through a coupling, the driving motor 11 drives the spiral stirring rod 12 to rotate at high speed, and the high-speed rotating spiral stirring rod 12 can stir and mix the cooling oil and alkali liquid entering the alkali washing mixing pipe 1 at the same time, thereby improving the efficiency of alkali washing of the refrigeration oil and completing rapid alkali washing of the refrigeration oil.

[0030] Among them, a first bearing 13 is fixedly installed at one end of the alkali washing mixing pipe 1, and the output shaft of the driving motor 11 is fixedly installed in the inner ring of the first bearing 13, which increases the stability of the output of the spiral stirring rod 12 driven by the driving motor 11 and facilitates the use of the device.

[0031] Among them, the first bearing 13 is a sealed bearing, which increases the sealing performance of the connection between the driving motor 11 and the alkali washing mixing pipeline 1 to avoid leakage at this location.

[0032] Among them, a second bearing 14 is fixedly installed on one end of the inner wall of the alkaline washing mixing pipe 1, and one end of the spiral stirring rod 12 is fixedly installed in the inner ring of the second bearing 14, which further increases the stability of the output of the spiral stirring rod 12 and facilitates the use of the device.

[0033] Among them, the liquid inlet and liquid outlet of the alkali washing mixing pipe 1 are respectively located on the side walls of the pipe, and the two ends of the alkali washing mixing pipe 1 facilitate the installation of the spiral stirring rod 12, the first bearing 13 and the second bearing 14. In addition, when the cooling oil and the alkali liquid enter the alkali washing mixing pipe 1 at the same time, the cooling oil and the alkali liquid will collide with the side wall of the alkali washing mixing pipe 1 to achieve a buffering effect, which helps the spiral stirring rod 12 to stir and mix the cooling oil and the alkali liquid.

[0034] Among them, the gap between the outer periphery of the spiral stirring rod 12 and the inner wall of the alkali washing mixing pipe 1 is not less than 1 cm, and the gap between the spiral blade and the inner wall of the mixing pipe 1 is preferably 2 cm to avoid collision between the spiral stirring rod 12 and the inner wall of the alkali washing mixing pipe 1, thereby ensuring smooth delivery of cooling oil and alkali solution.

[0035] Among them, one end of the spiral stirring rod 12 is located at the inlet of the refrigeration oil and the alkali solution, and the other end of the spiral stirring rod 12 is located at the outlet of the refrigeration oil and the alkali solution. From the moment the cooling oil and the alkali solution enter the alkali washing mixing pipe 1, the spiral stirring rod 12 mixes the cooling oil and the alkali solution until the cooling oil and the alkali solution are output from the alkali washing mixing pipe 1, stirring and mixing are performed throughout the whole process to accelerate the neutralization speed of the cooling oil and the alkali solution.

[0036] As is well known to those skilled in the art, the working principles and wiring methods of the drive motor 11, flow meter 6, circulation pump 8 and delivery pump 9 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can select their models arbitrarily according to their needs or convenience.

[0037] Working principle: When in use, first start the driving motor 11 to drive the spiral stirring rod 12 to rotate at high speed, and then simultaneously input the alkali liquid and the refrigeration oil into the alkali washing mixing pipe 1 through the alkali liquid delivery pipe 4 and the refrigeration oil delivery pipe 5. The high-speed rotating spiral stirring rod 12 can stir and mix the cooling oil and alkali liquid entering the alkali washing mixing pipe 1 at the same time, accelerate the neutralization speed of the cooling oil and the alkali liquid, and the mixed cooling oil and alkali liquid enter the alkali washing tower 2 from the first delivery pipe 3. After entering the alkali washing tower 2, it is only necessary to let the neutralized cooling oil and alkali liquid stand and stratify.

[0038] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A device for rapid alkaline washing of refrigeration oil, characterized in that: include: An alkali washing mixing pipeline (1), wherein the alkali washing mixing pipeline (1) is connected to an alkali washing tower (2) via a first delivery pipeline (3), and an alkali liquid delivery pipeline (4) and a refrigeration oil delivery pipeline (5) are respectively fixedly connected to the alkali washing mixing pipeline (1); Wherein, a mixing component for quickly neutralizing the refrigeration oil and the alkali solution is installed inside the alkali washing mixing pipeline (1).

2. The device for rapid alkali washing of refrigeration oil according to claim 1, characterized in that: It also comprises a flow meter (6), wherein the flow meter (6) is fixedly mounted on the alkali solution conveying pipeline (4).

3. The device for rapid alkali washing of refrigeration oil according to claim 1, characterized in that: The waste liquid outlet of the alkali washing tower (2) is connected to an alkali liquid tank (7) via a second delivery pipeline (10), and the liquid outlet of the alkali liquid tank (7) is fixedly connected to one end of the alkali liquid delivery pipeline (4); Wherein, a circulation pump (8) is fixedly installed on the second delivery pipeline (10), and a delivery pump (9) is fixedly installed on the alkali solution delivery pipeline (4).

4. The device for rapid alkali washing of refrigeration oil according to claim 1, characterized in that: The mixing component comprises a driving motor (11) fixedly mounted on one end of the alkali-washing mixing pipe (1); an output shaft of the driving motor (11) extends into the interior of the alkali-washing mixing pipe (1) and is fixedly connected to a spiral stirring rod (12) via a coupling.

5. The device for rapid alkali washing of refrigeration oil according to claim 4, characterized in that: A first bearing (13) is fixedly mounted on one end of the alkali washing mixing pipe (1), and an output shaft of the driving motor (11) is fixedly mounted in an inner ring of the first bearing (13).

6. The device for rapid alkali washing of refrigeration oil according to claim 5, characterized in that: The first bearing (13) is a sealed bearing.

7. The device for rapid alkali washing of refrigeration oil according to claim 4, characterized in that: A second bearing (14) is fixedly mounted on one end of the inner wall of the alkali washing mixing pipe (1), and one end of the spiral stirring rod (12) is fixedly mounted in the inner ring of the second bearing (14).

8. The device for rapid alkaline washing of refrigeration oil according to claim 1, characterized in that: The liquid inlet and the liquid outlet of the alkali washing mixing pipeline (1) are respectively located on the side wall of the pipeline.

9. The device for rapid alkali washing of refrigeration oil according to claim 4, characterized in that: The gap between the outer periphery of the spiral blade of the spiral stirring rod (12) and the inner wall of the alkali washing mixing pipe (1) is not less than 1 cm.

10. The device for rapid alkali washing of refrigeration oil according to claim 9, characterized in that: One end of the spiral stirring rod (12) is located at the inlet of the refrigeration oil and the alkali solution, and the other end of the spiral stirring rod (12) is located at the outlet of the refrigeration oil and the alkali solution.

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