A cooling liquid filter tank

Abstract

The utility model discloses a cooling liquid filter tank, including the cylindrical tank body, the inside of tank body is provided with self -cleaning channel, is provided with a plurality of gas injection port on self -cleaning channel, a plurality of gas injection port covers the working area from top to bottom in tank body, be provided with at least one high pressure gas flow air inlet of connecting outside gas source on self -cleaning channel, and the overall cleaning of filter tank is effectively promoted to the tank body inside and filter core surface from top to bottom overall cleaning is realized through built -in self -cleaning channel to prolong its service life, and the performance and reliability of entire precision machining system are finally improved.

Description

Technical Field

[0001] This utility model relates to the field of coolant filtration equipment, and more particularly to a coolant filtration tank. Background Technology

[0002] In the metalworking industry, cutting fluid or grinding fluid, as a key cooling and lubricating medium, plays a vital role in ensuring machining accuracy and extending tool life. Especially in precision machining processes, the quality requirements for coolant are even higher, which usually means that precision filtration of the coolant is necessary to ensure its effective recycling. One of the core components of a precision filtration system is the filter canister, which contains filter elements. Over time, these filter elements and the filter canister itself accumulate impurities; therefore, regular self-cleaning is crucial for maintaining the long-term stable operation of the system.

[0003] Currently, the self-cleaning process of filter canisters mainly relies on blowing compressed air upwards from the bottom of the canister to cause turbulence within the coolant, thereby dislodging impurities adhering to the inner wall of the canister and the filter element and mixing them into the coolant. Subsequently, the coolant containing impurities is discharged from the canister by reverse blowing, completing the self-cleaning process. However, this method has limitations: while the cleaning effect at the bottom of the canister is relatively significant, the cleaning efficiency is lower in the middle and upper areas due to the limited impact of compressed air, thus affecting the overall self-cleaning effect of the filter canister.

[0004] Meanwhile, improvements to the filter tank cleaning pipeline must take into account the environment in which the filter tank equipment is installed. Since most manufacturers integrate multiple filter tanks when installing them, when modifying the filter tank cleaning pipeline, sufficient installation space must be reserved for the filter tank as much as possible to prevent pipeline interference problems caused by multiple filter tanks during installation. Therefore, in response to the above problems and needs, this application proposes a solution. Summary of the Invention

[0005] Purpose of the utility model: The purpose of this utility model is to provide a coolant filter tank that can achieve comprehensive cleaning of the tank interior and filter element surface from top to bottom, effectively improving the overall cleanliness of the filter tank and extending its service life, while not requiring excessive modification to the outer surface of the filter tank, thus reserving sufficient installation space for the filter tank.

[0006] Technical solution: The coolant filter tank of this utility model includes a cylindrical tank body, a self-cleaning channel is provided inside the tank body, and a plurality of gas injection ports are opened on the self-cleaning channel, which cover the working area inside the tank body from top to bottom; the self-cleaning channel is provided with at least one high-pressure airflow inlet end connected to an external air source.

[0007] In this way, the gas injection nozzle covers a larger area, greatly increasing the turbulence range of the grinding fluid and improving the cleaning effect.

[0008] Preferably, the self-cleaning channel includes at least one annular sub-channel extending circumferentially along the tank body; when the number of annular sub-channels is two or more, adjacent annular sub-channels are interconnected by a connecting pipe.

[0009] Preferably, the plurality of annular sub-channels are evenly distributed from top to bottom along the height direction of the tank; at least one connecting pipe is provided between any two adjacent annular sub-channels.

[0010] This ensures uniform air turbulence inside the tank, eliminating the need for a single air inlet to backflush and self-clean the tank.

[0011] Preferably, gas injection ports are evenly distributed on the annular sub-channel and on the connecting pipe.

[0012] Preferably, the self-cleaning channel includes at least one continuous channel extending spirally in the height direction of the tank, and the gas injection ports are distributed along the spiral trajectory on the continuous channel.

[0013] Preferably, the gas injection port is provided with a nozzle that accelerates the airflow. The nozzle includes a flow guiding cavity. The starting end of the flow guiding cavity is connected to the gas injection port to form an air inlet, and the ending end of the flow guiding cavity forms an air outlet facing the inside of the tank.

[0014] The flow guide cavity is designed to inject high-pressure air introduced by the gas injection port into the tank, causing the coolant in the filter tank to tumble and rotate.

[0015] Preferably, the cross-sectional area of ​​the flow guiding cavity gradually increases from the air inlet end to the air outlet end of the flow guiding cavity.

[0016] Preferably, the cross-sectional area of ​​the outlet end of the flow guide cavity is smaller than the cross-sectional area of ​​the inlet end of the gas injection port.

[0017] This design creates an airflow acceleration effect at the air outlet.

[0018] Preferably, the air jet direction at the outlet of the flow guide cavity forms an angle with respect to the central axis of the tank.

[0019] To prevent airflow from directly impacting the filter element and causing damage.

[0020] Beneficial effects: Compared with the prior art, this utility model has the following advantages:

[0021] 1. The built-in self-cleaning channel enables comprehensive cleaning of the inside of the tank and the surface of the filter element from top to bottom, thereby effectively improving the overall cleanliness of the filter tank, extending its service life, and ultimately improving the performance and reliability of the entire precision machining system.

[0022] 2. The built-in self-cleaning channel effectively avoids the need to modify the outer wall of the filter tank, thus avoiding installation interference problems that may occur when multiple filter tanks are integrated and installed due to the external piping. Attached Figure Description

[0023] Figure 1 This is a front view of the present invention.

[0024] Figure 2 This is a cross-sectional view of the present invention.

[0025] Figure 3 This is a perspective view of the present invention after the tank body has been removed.

[0026] Figure 4 This is a three-dimensional structural diagram of the first self-cleaning channel in this utility model.

[0027] Figure 5 This is a partially enlarged view of the first self-cleaning channel in this utility model.

[0028] Figure 6 This is a schematic diagram of the second type of self-cleaning channel in this utility model when it is installed inside the tank. Detailed Implementation

[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0030] Example 1

[0031] See appendix Figures 1-5 Figure shows a coolant filter tank of this utility model, including a cylindrical tank body 1. The tank body 1 is provided with a self-cleaning channel 2. The self-cleaning channel 2 is provided with a plurality of gas injection ports 3, which cover the working area inside the tank body 1 from top to bottom. The self-cleaning channel 2 is provided with at least one high-pressure airflow inlet 5 connected to an external air source. In this way, the gas injection ports 3 cover a large area, which greatly increases the turbulence range of the grinding fluid and improves the cleaning effect.

[0032] In this embodiment, the self-cleaning channel 2 includes at least one annular sub-channel 21 extending circumferentially along the tank body 1; when there are two or more annular sub-channels 21, adjacent annular sub-channels 21 are interconnected by a connecting pipe 22.

[0033] Meanwhile, multiple annular sub-channels 21 are evenly distributed from top to bottom along the height direction of the tank 1; at least one connecting pipe 22 is provided between any two adjacent annular sub-channels 21. This arrangement makes the air disturbance inside the tank 1 uniform, and it is no longer a single air inlet that back-flushes and self-cleanses the tank 1.

[0034] In this embodiment, gas injection ports 3 are evenly distributed on the annular sub-channel 21 and on the connecting pipe 22.

[0035] In this embodiment, a nozzle 4 for accelerating airflow is provided on the gas injection port 3. The nozzle 4 includes a flow guiding cavity. The starting end of the flow guiding cavity is connected to the gas injection port to form an air inlet. The end of the flow guiding cavity forms an air outlet facing the inside of the tank. The flow guiding cavity is provided to inject the high-pressure air introduced by the gas injection port 3 into the inside of the tank 1, causing the coolant in the filter tank 1 to tumble and rotate.

[0036] In this embodiment, the cross-sectional area of ​​the guide cavity gradually increases from the air inlet end to the air outlet end of the guide cavity. The cross-sectional area of ​​the air outlet end of the guide cavity is smaller than the cross-sectional area of ​​the air inlet end of the gas injection port. This arrangement can create an airflow acceleration effect at the air outlet, further improving the uniformity of airflow disturbance to the coolant in the tank 1.

[0037] In this embodiment, the jet direction at the outlet of the air guide cavity forms an angle with respect to the central axis of the tank 1 to prevent the airflow from directly impacting the filter element 11 and causing damage to the filter element 11.

[0038] Example 2

[0039] See appendix Figure 6 In this embodiment, the self-cleaning channel 2 includes at least one continuous channel that extends spirally in the height direction of the tank body 1, and the gas injection port 3 is distributed along the spiral trajectory on the continuous channel to spray out airflow that disturbs the coolant.

[0040] Example 3

[0041] During operation, the coolant enters the tank body 1 of the filter tank from the dirty liquid inlet 6. The impurities in the coolant are isolated on the outer surface of the filter element 11 inside the filter tank. The purified coolant enters the interior of the filter element 11 and is finally discharged from the clean liquid outlet 7.

[0042] After a certain period of use, a certain amount of impurities accumulate on the inner wall of the filter tank 1 and the outer surface of the filter element 11, requiring self-cleaning. This process is divided into self-cleaning and backflushing. At this time, the dirty liquid inlet 6 stops feeding liquid and the clean liquid outlet 7 stops discharging liquid. The purpose of self-cleaning is to remove impurities from the inner wall of the filter tank and the surface of the filter element 11 and mix them into the coolant. Then, through the backflushing process, all the remaining coolant and impurities in the filter tank are drained, achieving the self-cleaning effect of the filter tank.

[0043] During self-cleaning, compressed air enters through the self-cleaning channel 2 and is discharged into the tank 1. The self-cleaning channel 2 has a ring-shaped structure, forming several closed and interconnected rings around the inner wall of the tank 1. The gas injection port 3 on the self-cleaning channel 2 is connected to the nozzle 4. The gas entering the tank 1 through the nozzle 4 causes the coolant in the tank 1 to tumble and rotate, forming a certain vortex. After the coolant is swirled and agitated, impurities on the inner wall of the tank 1 and the surface of the filter element are quickly and thoroughly stripped off and mixed into the agitated coolant. To avoid excessive pressure inside the tank 1, the overflow port 8 remains open during self-cleaning, and excess compressed air and coolant are discharged from the overflow port 8.

[0044] During backflushing, the required compressed air enters the tank 1 from the backflushing port 9 and exits the tank 1 from the drain port 10, ensuring that the coolant and impurities in the tank 1 can be fully emptied. After backflushing is completed, the coolant undergoes the normal filtration process again.

Claims

1. A coolant filter tank, comprising a cylindrical tank body (1), characterized in that: The tank (1) is provided with a self-cleaning channel (2), and the self-cleaning channel (2) is provided with a number of gas injection ports (3), which cover the working area inside the tank (1) from top to bottom; the self-cleaning channel (2) is provided with at least one high-pressure airflow inlet (5) connected to an external air source. The self-cleaning channel (2) includes at least one annular sub-channel (21) extending circumferentially along the tank body (1) or includes at least one continuous channel extending spirally in the height direction of the tank body (1). When the self-cleaning channel (2) is an annular sub-channel (21) extending circumferentially along the tank body (1) and the number of annular sub-channels (21) is two or more, two adjacent annular sub-channels (21) are connected to each other through a connecting pipe (22); When the self-cleaning channel (2) is a continuous channel that extends spirally in the height direction of the tank (1), the gas injection port (3) is distributed along the spiral trajectory on the continuous channel.

2. A coolant filter tank according to claim 1, characterized in that: Multiple annular sub-channels (21) are evenly distributed from top to bottom along the height direction of the tank (1); at least one connecting pipe (22) is provided between any two adjacent annular sub-channels (21).

3. A coolant filter tank according to claim 2, characterized in that: Gas injection ports (3) are evenly distributed on the annular sub-channel (21) and gas injection ports (3) are evenly distributed on the connecting pipe (22).

4. A coolant filter tank according to claim 1, characterized in that: The gas injection port (3) is provided with a nozzle (4) for accelerating airflow. The nozzle (4) includes a flow guiding cavity. The starting end of the flow guiding cavity is connected to the gas injection port to form an air inlet, and the end of the flow guiding cavity forms an air outlet facing the inside of the tank.

5. A coolant filter tank according to claim 4, characterized in that: The cross-sectional area of ​​the flow guide cavity gradually increases from the air inlet end to the air outlet end of the flow guide cavity.

6. A coolant filter tank according to claim 4, characterized in that: The cross-sectional area of ​​the outlet end of the flow guide cavity is smaller than the cross-sectional area of ​​the inlet end of the gas injection port.

7. A coolant filter tank according to claim 4, characterized in that: The air jet direction at the outlet of the flow guide cavity forms an angle with respect to the central axis of the tank (1).

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