Efficient cleaning and replacing device of lubricating oil filter

Abstract

The utility model relates to the technical field of filter equipment, in particular to an efficient cleaning and replacing device of a lubricating oil filter. The device comprises a lubricating oil filter I (8-1) and a lubricating oil filter II (8-2), the two lubricating oil filters are connected in parallel; a lubricating oil inlet (12) is formed in the connecting position of the upper portions of the first lubricating oil filter (8-1) and the second lubricating oil filter (8-2), a lubricating oil outlet (13) is formed in the connecting position of the lower portions of the first lubricating oil filter (8-1) and the second lubricating oil filter (8-2), and filter reversing valves (10) are arranged at the lubricating oil inlet (12) and the lubricating oil outlet (13) respectively. The top of the first lubricating oil filter (8-1) and the top of the second lubricating oil filter (8-2) are each provided with an exhaust port and the like connected with an exhaust pipeline (14). By adopting the utility model, the problems of slow flow, long replacement time and the like in the oil discharge replacement process of the lubricating oil filter are solved, the lubricating oil is not polluted, and the secondary pollution caused by oil discharge and spilling is avoided.

Description

Technical Field

[0001] This utility model relates to the field of filter equipment technology, specifically to a high-efficiency cleaning and replacement device for a lubricating oil filter. Background Technology

[0002] Currently, lubricating oil station skid-mounted equipment manufacturers typically provide two lubricating oil filters, one for operation and one as a backup. During use, if a filter becomes clogged, it needs to be switched to the backup filter, and the lubricating oil in the backup filter must be drained and replaced. Many lubricating oil station users experience problems such as long filter draining and replacement times, lubricating oil contamination, and environmental pollution caused by oil leaks.

[0003] Conventional lubrication station processes use gravity flow to drain the oil from the lubricating oil filter to a lower oil tank and basin for storage. However, the filter that needs to be replaced is already clogged, the natural flow is very slow, the oil drainage time is long, and a lot of lubricating oil remains in the filter. Operators need to pump the oil again, and the oil pumping process can also cause the lubricating oil to be contaminated or leaked, resulting in waste.

[0004] When the temperature is low, such as in winter, the viscosity of lubricating oil increases and its fluidity is worse. At this time, even if an oil filter is used to extract oil, it is very slow, the drainage and replacement time is long, the operation time of the operator is extended, and the operation difficulty is increased. Utility Model Content

[0005] The purpose of this invention is to provide a highly efficient cleaning and replacement device for lubricating oil filters, addressing the problems existing in current technologies. This device effectively solves the problems of slow flow and long replacement time during the oil draining and replacement process of lubricating oil filters; furthermore, it does not contaminate the lubricating oil or cause secondary pollution from oil overflow.

[0006] To achieve the above-mentioned objectives, the technical solution of this utility model is as follows:

[0007] A high-efficiency cleaning and replacement device for lubricating oil filters includes two lubricating oil filters, namely lubricating oil filter one and lubricating oil filter two, connected in parallel. A lubricating oil inlet is provided at the upper connection point of lubricating oil filter one and lubricating oil filter two, and a lubricating oil outlet is provided at the lower connection point, facilitating the entry of lubricating oil into the filters for filtration. Filter reversing valves are provided at both the lubricating oil inlet and the lubricating oil outlet. An exhaust port connected to an exhaust pipe is provided at the top of both lubricating oil filter one and lubricating oil filter two, facilitating the discharge of gas from the lubricating oil filters; the exhaust port is connected to a lubricating oil tank. An intake pipe connected to external compressed gas is added to the exhaust pipe. An oil drain port connected to an oil drain pipe is provided at the bottom of both lubricating oil filter one and lubricating oil filter two, and the two oil drain ports are connected together by a pipe, which is connected to a lubricating oil tank.

[0008] Furthermore, in the aforementioned high-efficiency cleaning and replacement device for a lubricating oil filter, a three-valve assembly of a self-regulating pressure regulating valve is installed on the air inlet pipe; the three-valve assembly of the self-regulating pressure regulating valve includes a self-regulating regulating valve, a pressure relief valve, and a pressurizing air inlet valve; the self-regulating regulating valve (3) and the pressurizing air inlet valve (5) are connected in series, and a branch pipe between the two valves is connected to the pressure relief valve (4). When oil needs to be drained, the inlet and outlet of the filter that needs to be cleaned and replaced are switched to the closed state. The bottom drain valve is opened, the top air inlet valve is opened, and the oil tank exhaust valve is closed, allowing compressed gas to enter the filter. After the air enters, it will force the lubricating oil in the filter out from the bottom drain valve and drain it into the lubricating oil tank.

[0009] Furthermore, in the aforementioned high-efficiency cleaning and replacement device for a lubricating oil filter, an intake main valve and a pipeline filter are sequentially installed on the intake pipe into which the external compressed gas delivery pipe enters; the pipeline filter is connected to a three-valve group of a self-regulating pressure regulating valve.

[0010] Furthermore, in the aforementioned high-efficiency cleaning and replacement device for a lubricating oil filter, the main air intake valve of the intake pipe into which external compressed gas enters is an automatic switching valve with a solenoid valve, and the switching signal of the switching valve comes from the drain float switch.

[0011] Furthermore, in the aforementioned high-efficiency cleaning and replacement device for a lubricating oil filter, an oil tank vent valve and a pipeline sight glass are installed on the pipeline connecting the vent port and the lubricating oil tank.

[0012] Furthermore, in the aforementioned high-efficiency cleaning and replacement device for lubricating oil filters, filter drain valves are installed on the drain pipes at the bottom of both lubricating oil filter one and lubricating oil filter two.

[0013] Furthermore, in the aforementioned high-efficiency cleaning and replacement device for a lubricating oil filter, an oil drain pipe sight glass is installed on the pipeline connecting the main oil drain pipe and the lubricating oil tank, and an oil drain float switch is installed on the oil drain pipe to detect whether the lubricating oil has been drained.

[0014] Furthermore, in the aforementioned high-efficiency cleaning and replacement device for lubricating oil filters, filter inlet valves are respectively installed on the pipelines connecting the exhaust ports of lubricating oil filter one and lubricating oil filter two to the exhaust pipes.

[0015] Furthermore, in the aforementioned high-efficiency cleaning and replacement device for a lubricating oil filter, the external compressed gas delivery pipe is a factory-owned air or nitrogen delivery pipe, or an air delivery pipe compressed by an air pump. Compressed gas is used as the pressurizing medium, with a pressure not lower than 0.1 MPa and not higher than the pressure of the lubricating oil pipeline network. The gas source is a non-hazardous, readily available, and inexpensive gas.

[0016] The process flow for lubricating oil filtration using the above device is as follows:

[0017] When oil draining is required, switch the inlet and outlet of the lubricating oil filter (lubricating oil filter one or lubricating oil filter two) to the closed position. Open the bottom drain valve, open the top air inlet valve, and close the oil tank exhaust valve to allow compressed air to enter the filter. After the air enters, it will force the lubricating oil in the filter out through the bottom drain valve and drain it into the lubricating oil tank.

[0018] Compared with existing technologies, the beneficial effects of this utility model are:

[0019] (1) The safety factor is high. The lubricating oil is not discharged into the external container during the entire oil discharge process, and will not come into contact with fire sources or other dangerous media.

[0020] (2) Low cost. Compared with oil filtration machines and other oil drainage methods, using the factory's own compressed gas will not require additional equipment. Because the lubricating oil filter has a small volume, the gas consumption is very low. Even if a compressed air pump is used to provide compressed gas, the usage time and consumption are lower than those of an oil filter.

[0021] (3) High working efficiency: The original gravity flow method usually takes 30 to 60 minutes to drain oil, while the oil draining time of this device is only a few minutes (depending on the filter volume), and the oil draining is more thorough with less residue. The extracted filter element is almost oil-free. In comparison, the inlet suction pressure of the oil filter does not exceed 0.1 MPa, while the operating pressure of this device can reach 0.2 to 0.5 MPa, which is more efficient and takes less time.

[0022] (4) Clean production: The original equipment discharged the lubricating oil into an oil pan below the filter drain, or used an oil filter to extract the oil. The oil discharge process would cause the lubricating oil to be contaminated or leak. The new oil discharge device (lubricating oil filter cleaning and replacement device) discharges directly to the oil tank through a pipeline, which will not cause lubricating oil leakage and does not require filtration again.

[0023] (5) Automation is achieved. The new device is simple, effective and reliable for oil drain detection, and can achieve automated operation. Even if the lubricating oil is drained, there will be no damage to the mechanical equipment. However, if an oil filter is used, a dedicated person must monitor it to prevent damage to the operating equipment after the oil is drained. Attached Figure Description

[0024] Figure 1 This is a schematic diagram showing the connection relationship of a high-efficiency cleaning and replacement device for a lubricating oil filter according to this utility model;

[0025] The attached figures are labeled as follows:

[0026] 1 – Main intake valve; 2 – Pipeline filter; 3 – Self-regulating valve; 4 – Pressure relief valve; 5 – Pressurized intake valve; 6 – Oil tank exhaust valve; 7 – Filter intake valve; 8-1 – Lubricating oil filter one; 8-2 – Lubricating oil filter two; 9 – Filter drain valve; 10 – Filter directional valve; 11 – Drain pipe sight glass; 12 – Lubricating oil inlet; 13 – Lubricating oil outlet; 14 – Exhaust pipe; 15 – Lubricating oil tank; 16 – External compressed gas delivery pipe; 17 – Drain float switch; 18 – Drain pipe. Detailed Implementation

[0027] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0028] Any feature disclosed in this specification (including the claims and abstract) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0029] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0030] Example 1:

[0031] A high-efficiency cleaning and replacement device for lubricating oil filters, the device comprising two lubricating oil filters, namely lubricating oil filter 8-1 and lubricating oil filter 8-2; the two lubricating oil filters are connected in parallel.

[0032] A lubricating oil inlet 12 is provided at the upper connection of lubricating oil filter 1 8-1 and lubricating oil filter 2 8-2, and a lubricating oil outlet 13 is provided at the lower connection. A filter reversing valve 10 is provided at both the lubricating oil inlet 12 and the lubricating oil outlet 13.

[0033] Both the top of the lubricating oil filter 1-8-1 and the lubricating oil filter 2-8-2 are provided with exhaust ports connected to the exhaust pipe 14, and the exhaust ports are connected to the lubricating oil tank 15; an air inlet pipe is added to the exhaust pipe 14 to connect to the external compressed gas delivery pipe 16; the external compressed gas delivery pipe 16 is the factory's own factory air and nitrogen delivery pipe (which can be replaced by an air delivery pipe compressed by an air pump).

[0034] Oil drain ports are provided at the bottom of both lubricating oil filter 1 (8-1) and lubricating oil filter 2 (8-2). The two oil drain ports are connected together by a pipe to form a main oil drain pipe. The oil drain pipe is connected to the lubricating oil tank (15). An oil drain float switch (17) is installed on the oil drain pipe to facilitate detection of whether the lubricating oil has been drained.

[0035] A three-valve group of self-operated pressure regulating valves is installed on the intake pipe; the three-valve group of self-operated pressure regulating valves includes self-operated regulating valve 3, pressure relief valve 4 and pressurized intake valve 5; self-operated regulating valve (3) and pressurized intake valve 5 are connected in series, and the branch pipe between the two valves is connected to pressure relief valve 4.

[0036] An intake main valve 1 and a pipeline filter 2 are sequentially installed on the intake pipe into which external compressed gas 16 enters; the pipeline filter 2 is connected to the three-valve group of the self-regulating pressure regulating valve.

[0037] An oil tank vent valve 6 and a pipe sight glass are installed on the pipeline connecting the vent port and the lubricating oil tank.

[0038] Both the bottom drain pipes of lubricating oil filter 8-1 and lubricating oil filter 8-2 are equipped with filter drain valves 9.

[0039] An oil drain pipe sight glass 11 is installed on the pipeline connecting the main oil drain pipe and the lubricating oil tank 15 to facilitate observation of the lubricating oil discharge.

[0040] A filter inlet valve 7 is installed on the pipeline connecting the exhaust port of lubricating oil filter 8-1 and lubricating oil filter 8-2 to the exhaust pipe.

[0041] The main intake valve 1 is an automatic on / off valve with a solenoid valve. The opening and closing of the main intake valve 1 is controlled by the signal from the float drain switch 17, so as to realize the automatic intake and shutdown of compressed gas delivery pipe, which helps to save the amount of compressed gas used.

[0042] The steps for efficient cleaning and replacement of the lubricating oil filter using the above device are as follows:

[0043] (a) Compressed gas is used as the pressurizing medium. The compressed gas can be factory air, nitrogen, or air compressed by an air pump. The pressure is not less than 0.1 MPa and not higher than the pressure of the lubricating oil pipeline network.

[0044] (b) Turn the indicator of the filter reversing valve 10 from the lubricating oil filter in use (lubricating oil filter one or lubricating oil filter two) to the standby filter (lubricating oil filter two or lubricating oil filter one);

[0045] (c) Close the oil tank exhaust valve 6 and pressure relief valve 4; open the filter drain valve 9, filter air inlet valve 7, and pressurization air inlet valve 5 in sequence; finally, reset and energize the solenoid valve of the main air inlet valve 1 and open the main air inlet valve 1.

[0046] (d) The compressed gas from step (c) is filtered through pipeline filter 2 to remove mechanical impurities and then sent to lubricating oil filter 8 for pressurization until the oil drain float switch sends an oil-free signal, de-energizing the solenoid valve of the main intake valve 1, and the main intake valve 1 automatically closes. On-site operation can also be confirmed by observing that there is no lubricating oil flowing through the oil drain pipe sight glass 11, thus confirming that the gas has been drained.

[0047] (e) Once the filter element has been cleaned and replaced, the filter can be put into use by performing the reverse sequence of operations.

[0048] The embodiments described above merely illustrate specific implementation methods of this application, and while the descriptions are detailed and specific, they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the technical solution of this application, and these modifications and improvements all fall within the scope of protection of this application.

[0049] The background section is provided to generally present the context of this utility model. The work of the currently named utility model owner, the work to the extent described in this background section, and aspects of this section that did not constitute prior art at the time of application are neither expressly nor impliedly acknowledged as prior art of this utility model.

Claims

1. A high-efficiency cleaning and replacement device for a lubricating oil filter, characterized in that: The device includes two lubricating oil filters, namely lubricating oil filter one (8-1) and lubricating oil filter two (8-2); the two lubricating oil filters are connected in parallel; a lubricating oil inlet (12) is provided at the upper connection of lubricating oil filter one (8-1) and lubricating oil filter two (8-2), and a lubricating oil outlet (13) is provided at the lower connection; a filter reversing valve (10) is provided at both the lubricating oil inlet (12) and the lubricating oil outlet (13); Each of the tops of the lubricating oil filter is provided with an exhaust port connected to the exhaust pipe (14), and the exhaust port is connected to the lubricating oil tank (15) through the exhaust pipe (14); an intake pipe connected to the external compressed gas delivery pipe (16) is added to the exhaust pipe (14); an oil drain port connected to the drain pipe (18) is provided at the bottom of the lubricating oil filter one (8-1) and the lubricating oil filter two (8-2), and the oil drain pipe (18) connects the two oil drain ports together; the oil drain port is connected to the lubricating oil tank (15) through the oil drain pipe (18).

2. The high-efficiency cleaning and replacement device for a lubricating oil filter according to claim 1, characterized in that: A three-valve group of self-operated pressure regulating valves is installed on the intake pipe; the three-valve group of self-operated pressure regulating valves includes a self-operated regulating valve (3), a pressure relief valve (4) and a pressurizing intake valve (5); the self-operated regulating valve (3) and the pressurizing intake valve (5) are connected in series, and the branch pipe between the two valves is connected to the pressure relief valve (4).

3. The high-efficiency cleaning and replacement device for a lubricating oil filter according to claim 2, characterized in that: An inlet main valve (1) and a pipeline filter (2) are sequentially installed on the external compressed gas delivery pipe (16); the pipeline filter (2) is connected to the three-valve group of the self-regulating pressure regulating valve.

4. A high-efficiency cleaning and replacement device for a lubricating oil filter according to claim 1 or 3, characterized in that: An oil tank vent valve (6) and a pipe sight glass are installed on the pipeline connecting the vent port and the lubricating oil tank.

5. The high-efficiency cleaning and replacement device for a lubricating oil filter according to claim 4, characterized in that: A filter drain valve (9) is installed on the drain pipe at the bottom of both the first (8-1) and the second (8-2) lubricating oil filter.

6. The high-efficiency cleaning and replacement device for a lubricating oil filter according to claim 5, characterized in that: A float-type oil drain switch (17) is installed on the oil drain pipe (18).

7. The high-efficiency cleaning and replacement device for a lubricating oil filter according to claim 6, characterized in that: An oil drain pipe sight glass (11) is installed on the pipeline connecting the float drain switch (17) and the lubricating oil tank (15).

8. A high-efficiency cleaning and replacement device for a lubricating oil filter according to claim 1, 5, 6 or 7, characterized in that: A filter inlet valve (7) is installed on the pipeline connecting the exhaust port of lubricating oil filter one (8-1) and lubricating oil filter two (8-2) to the exhaust pipe.

9. A high-efficiency cleaning and replacement device for a lubricating oil filter according to claim 8, characterized in that: The external compressed gas delivery pipe (16) is a factory air or nitrogen delivery pipe or an air delivery pipe compressed by an air pump.

10. A high-efficiency cleaning and replacement device for a lubricating oil filter according to claim 9, characterized in that: The intake main valve (1) is an automatic on / off valve with a solenoid valve.

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