A hydraulic oil online cleaning device

Abstract

The present invention discloses an online cleaning device for hydraulic oil, comprising a filter whose input end and output end are respectively connected to a hydraulic pipeline; the interior of the filter is divided into multiple layers from bottom to top, one end of each layer is open and the other end is closed; the openings of two adjacent layers face opposite directions, and a filter layer is provided in a partition between the two adjacent layers, for the hydraulic oil entering from the opening of one layer to be discharged from the opening of another adjacent layer after being filtered; a flat tube penetrating the filter is provided in each layer; the flat tube is sealedly connected to the front and rear side walls of the filter, for cooling the hydraulic oil outside the flat tube when the refrigerant passes through the flat tube. The present invention combines a filtering device and a cooling device into one, has the dual functions of filtering and cooling, and has a compact structure, small space occupation, and high filtering efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of hydraulic oil filtering and cleaning, and in particular relates to an online hydraulic oil cleaning device. Background Art

[0002] The cleanliness and temperature of hydraulic oil have an important impact on the reliability of hydraulic components such as solenoid valves and cylinders. Hydraulic oil with poor cleanliness has more impurities and is prone to valve jamming. If the temperature of the hydraulic oil is too high, it will transfer heat to the hydraulic components, causing them to expand due to heat and affect the sealing. Therefore, hydraulic systems are often equipped with filtering and cleaning devices and cooling devices. Usually, the filtering device and the cooling device are connected in series to the hydraulic pipeline. For example, the Chinese patent "A Hydraulic Oil Filtering and Cooling Combined Equipment for Hydraulic Stations" with announcement number CN215444614U has the following problems: first, the filtering device is not efficient and has a large resistance, resulting in excessive pressure drop in the hydraulic system; second, the filtering device and the cooling device are connected to the pipeline separately, resulting in a bulky mechanism and occupying more space.

[0003] During the aluminum electrolysis production process, the ambient temperature is high and there is a lot of dust. Most hydraulic actuators are located on a multi-functional overhead crane with limited space. It is necessary to arrange a hydraulic oil cleaning device in the limited space to clean, filter and cool the hydraulic system. Summary of the invention

[0004] In order to overcome the deficiencies in the background technology, the present invention provides an online cleaning device for hydraulic oil, the purpose of which is to cool down the hydraulic oil while cleaning and filtering it, combining the filtering device and the cooling device into one, with a compact structure and reduced space occupancy.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A hydraulic oil online cleaning device comprises a filter whose input end and output end are respectively connected to a hydraulic pipeline; the interior of the filter is divided into multiple layers from bottom to top, one end of each layer is open and the other end is closed; the openings of two adjacent layers face opposite directions, and a filter layer is provided in a partition between the two adjacent layers, so that the hydraulic oil entering from the opening of one layer is discharged from the opening of another adjacent layer after being filtered;

[0007] A flat tube penetrating the filter is provided in each layer; the flat tube is sealedly connected to the front and rear side walls of the filter and is used to cool the hydraulic oil outside the flat tube when the refrigerant passes through the flat tube.

[0008] As a further optimization, there are multiple flat tubes in each layer, which are evenly spaced.

[0009] As a further optimization, a fan is also included; the air outlet of the fan is aligned with one end of the flat tube, so as to pass air as a refrigerant into the flat tube.

[0010] As a further optimization, a magnetic block is provided in the filter layer for absorbing iron impurities.

[0011] As a further optimization, there are multiple filters connected in parallel to the hydraulic pipeline; the position of each filter corresponds to that of the airflow blown out by the fan, so that the airflow passes through the flat tube of each filter in turn.

[0012] As a further optimization, valves are installed at the input end and the output end of each filter.

[0013] The beneficial effects of the present invention are:

[0014] (1) The filter adopts a multi-layer design and multiple inlets and outlets, which increases the filtration area while reducing the hydraulic resistance.

[0015] (2) Flat tubes are arranged in each layer to achieve cooling function while filtering, thereby making the device compact and saving space.

[0016] In short, the device combines the filtering device and the cooling device into one, has the dual functions of filtering and cooling, and has a compact structure, small space occupation and high filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the filter of Example 1 of the present invention;

[0018] Figure 2 for Figure 1 A cross-sectional view at AA;

[0019] Figure 3 This is a schematic diagram of the pipeline connection structure of Example 1 of the present invention.

[0020] In the figure: 1 filter, 11 open, 12 filter layer, 13 flat tube, 14 magnetic block, 2 fan, 3 valve; wherein the arrow indicates the flow direction of the hydraulic pressure. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the preferred embodiments of the present invention, rather than all the embodiments. It should be understood by those skilled in the art that these implementation modes are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0022] Example 1: Please refer to Figure 1-3;

[0023] The present invention provides the following technical solution: a hydraulic oil online cleaning device, comprising a filter 1 whose input end and output end are respectively connected to the hydraulic pipeline; the filter 1 has a plurality of filters, which are connected in parallel to the hydraulic pipeline; for example, Figure 3 As shown, this embodiment uses two filters 1 in parallel. On the one hand, multiple filters 1 in parallel can reduce the resistance of hydraulic oil flow, and on the other hand, it also increases the filtering area and improves the filtering efficiency. Among them, valves 3 are installed at the input and output ends of each filter 1. So that when any filter 1 fails, the valves at both ends can be closed for replacement without closing the entire pipeline, so as to keep the hydraulic system in normal operation.

[0024] The filter 1 is divided into multiple layers from bottom to top, with one end of each layer being an open port 11 and the other end being closed; the openings 11 of two adjacent layers face opposite directions, and a filter layer 12 is provided in the partition between the two adjacent layers, for the hydraulic oil entering from the opening 11 of one layer to be discharged from the opening 11 of another adjacent layer after being filtered; thus, the multiple flattened filter layers 12 in each filter 1 work simultaneously, which increases the filtering area and improves the filtering effect on the one hand, and also makes the filter 1 compact and occupies less space on the other hand. In addition, due to the multiple openings 11 for entry and multiple openings 11 for discharge, the filter 1 has a smaller resistance.

[0025] In each layer, a flat tube 13 is provided which passes through the filter 1; the flat tube 13 is sealed and connected to the front and rear side walls of the filter 1, and is used to cool the hydraulic oil outside the flat tube 13 when the refrigerant passes through the flat tube 13. In each layer, there are multiple flat tubes 13, which are evenly spaced. The heat dissipation area is increased and the heat exchange efficiency is improved. The refrigerant can be water, air, oil, etc. Among them, this embodiment adopts air cooling, which is low in cost and does not need to be equipped with connecting pipelines. Therefore, a fan 2 is also included; the air outlet of the fan 2 is aligned with one end of the flat tube 13, and is used to pass air as a refrigerant into the flat tube 13. The position of each filter 1 corresponds to that of the air flow blown out by one fan 2, which passes through the flat tube 13 of each filter 1 in turn. Using one fan 2 to cool multiple filters 1 is efficient and low in cost. It also makes the multiple filters 1 and fans 2 arranged side by side occupy less space and have a compact structure.

[0026] The filter layer 12 is provided with a magnetic block 14 for absorbing iron impurities to prevent incomplete filtration when there are many iron impurities in the hydraulic oil. The magnetic block 14 can further improve the effect of removing iron impurities.

[0027] The advantages of this embodiment over the prior art are:

[0028] (1) The filter 1 adopts a multi-layer design and multiple inlets and outlets, which increases the filtration area and reduces the hydraulic resistance.

[0029] (2) The flat tubes 1 are arranged in the space of each layer so that the filtering and cooling functions can be realized at the same time, thereby making the structure of the device compact and saving space.

[0030] In short, the device combines the filtering device and the cooling device into one, has the dual functions of filtering and cooling, and has a compact structure, small space occupation and high filtering efficiency.

[0031] The parts not described in detail in the present invention are prior art; for ordinary technicians in the field, the technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hydraulic oil online cleaning device, comprising a filter (1) whose input end and output end are respectively connected to a hydraulic pipeline; characterized in that: The filter (1) is divided into multiple layers from bottom to top, one end of each layer is open (11) and the other end is closed; the openings (11) of two adjacent layers face opposite directions, and a filter layer (12) is provided in the partition between the two adjacent layers, so that the hydraulic oil entering from the opening (11) of one layer is filtered and then discharged from the opening (11) of another adjacent layer; A flat tube (13) is provided in each layer and passes through the filter (1); the flat tube (13) is sealedly connected to the side wall of the filter (1) and is used to cool the hydraulic oil outside the flat tube (13) when the refrigerant passes through the flat tube (13).

2. The hydraulic oil online cleaning device according to claim 1, characterized in that: In each layer, there are a plurality of flat tubes (13) which are evenly spaced.

3. The hydraulic oil online cleaning device according to claim 2, characterized in that: It also includes a fan (2); the air outlet of the fan (2) is aligned with one end of the flat tube (13) and is used to pass air as a refrigerant into the flat tube (13).

4. The hydraulic oil online cleaning device according to claim 3, characterized in that: The filter layer (12) is provided with a magnetic attraction block (14) for absorbing iron impurities.

5. The hydraulic oil online cleaning device according to claim 4, characterized in that: There are a plurality of filters (1) connected in parallel to each other on the hydraulic pipeline; the position of each filter (1) corresponds to that of the airflow blown out by the fan (2) passing through the flat tube (13) of each filter (1) in sequence.

6. The hydraulic oil online cleaning device according to claim 5, characterized in that: A valve (3) is installed at the input end and the output end of each filter (1).

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