Cooling liquid filtering device

Abstract

The utility model belongs to the technical field of filtering equipment, and discloses a cooling liquid filtering device which comprises a filtering tank, an ozone generator and a composite pipe, a filter element is arranged in the filtering tank, the ozone generator is arranged in the filtering tank and is connected with the inlet end of the composite pipe, and the outlet end of the composite pipe extends into the filtering tank and extends to the bottom of the filtering tank. The utility model provides a filtering device with a brand new structure, which can introduce ozone into the filtering tank to fully sterilize the inner wall of the filtering tank and the surface of the filter element, so that the quality of cooling liquid is improved, and the service life of the filtering tank is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of filter equipment, and particularly relates to a cooling liquid filtering device. BACKGROUND

[0002] In the metal processing industry, cutting fluid or grinding fluid as an important cooling and lubricating medium is crucial to ensure the machining precision and prolong the tool life. In order to realize the effective recycling of these cooling liquids, precision filtering equipment is widely used, and the filter tank is the core component of the system. The existing high-efficiency filter tank follows a closed-loop working process: filtering→self-cleaning→back flushing→filtering.

[0003] However, as the use time increases, a large number of microorganisms often breed in water-based cooling liquid, which not only destroys the quality of the cooling liquid, but also directly affects the processing quality. The existing solution is only to sterilize the cooling liquid on the liquid storage tank or inlet and outlet pipeline, but the sterilization treatment of the inside of the filter tank is often ignored. As the core component of the filtering equipment, the sanitary condition of the inside of the filter tank is directly related to the effect of the whole filtering process. SUMMARY

[0004] The utility model aims at providing a kind of cooling liquid filtering device to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of cooling liquid filtering device, including filter tank, ozone generator and composite pipe, filter tank is provided with filter core inside, ozone generator is set to filter tank and is connected with the inlet end of composite pipe, the outlet end of composite pipe is inserted into filter tank and extends to the bottom of filter tank.

[0006] In some embodiments, the cooling liquid filtering device further includes a first partition, a second partition and a filler, the first partition and the second partition are installed in the filter tank and located at the bottom of the filter tank, a containing space is formed between the first partition and the second partition, the filler is arranged in the containing space, and the outlet end of the composite pipe is inserted into the containing space.

[0007] In some embodiments, the cooling liquid filtering device further includes a maintenance port, the maintenance port is installed in the filter tank and communicates with the containing space.

[0008] In some embodiments, the first partition and the second partition are perforated partitions, and the filler is a hollow structure.

[0009] In some embodiments, the cooling liquid filtering device further includes a first compressed air inlet, and the inlet end of the composite pipe is connected to the ozone generator and the first compressed air inlet respectively.

[0010] In some embodiments, the cooling liquid filtering device further comprises a first one-way valve and a second one-way valve, the first one-way valve is arranged in the pipeline between the inlet end of the composite pipe and the ozone generator, and the second one-way valve is arranged in the pipeline between the inlet end of the composite pipe and the first compressed air inlet.

[0011] In some embodiments, the cooling liquid filtering device further comprises an inlet and an outlet, the outlet is arranged at the upper end of the filtering tank, and the inlet is arranged at the lower end of the filtering tank.

[0012] In some embodiments, the cooling liquid filtering device further comprises a second compressed air inlet, a third one-way valve and a control valve, the outlet is connected with the second compressed air inlet and the control valve respectively, and the third one-way valve is arranged between the outlet and the second compressed air inlet.

[0013] In some embodiments, the cooling liquid filtering device further comprises a check valve and a second angle seat valve, the inlet is connected with the check valve and the second angle seat valve respectively.

[0014] In some embodiments, the cooling liquid filtering device further comprises a self-cleaning outlet and a first angle seat valve, the self-cleaning outlet is arranged on the filtering tank, and the first angle seat valve is connected with the self-cleaning outlet.

[0015] The cooling liquid filtering device has the following beneficial effects:

[0016] 1. The filtering device with a novel structure can introduce ozone into the filtering tank, sterilize the inner wall of the filtering tank and the surface of the filter element sufficiently, and improve the quality of the cooling liquid and prolong the service life of the filtering tank.

[0017] 2. The ozone entering the filtering tank and contacting the cooling liquid produces a large number of bubbles, which are cut into small bubbles under the action of the filler, so that the ozone is more easily dissolved in the cooling liquid and the sterilization efficiency is higher.

[0018] 3. The pipeline through which the ozone enters the filtering tank is consistent with the pipeline through which the gas enters the filtering tank during self-cleaning, so that the pipeline does not need to be additionally increased, and the installation burden and cost are not increased.

[0019] 4. The connection mode is changed, the self-cleaning outlet is arranged on the side surface of the filtering tank, and the self-cleaning outlet is no longer communicated with the dirty liquid inlet, so that the impact of the dirty liquid on the self-cleaning outlet is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective view of the whole of the utility model after the tank body is penetrated;

[0021] Figure 2 It is a front view of the whole of the utility model;

[0022] Figure 3 It is Figure 2Schematic diagram after filler and perspective tank body are omitted;

[0023] In the figure: 1-filter core; 2-ozone generator; 3-composite pipe; 4-first partition plate; 5-second partition plate; 6-filler; 7-maintenance port; 8-control valve; 9-liquid outlet; 10-filter tank; 11-check valve; 12-liquid inlet; 13-self-cleaning outlet; 14-containing space; A1-first one-way valve; A2-second one-way valve; A3-third one-way valve; B1-first compressed air inlet; B2-second compressed air inlet; C1-first angle seat valve; C2-second angle seat valve; 101-tank body; 102-cover plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Please refer to Figures 1-3 The present application provides the following technical solutions:

[0026] The cooling liquid filtering device comprises a filter tank 10, an ozone generator 2 and a composite pipe 3. The filter tank 10 is internally provided with a filter core 1. The ozone generator 2 is arranged in the filter tank 10 and connected with the inlet end of the composite pipe 3. The outlet end of the composite pipe 3 extends into the filter tank 10 and extends to the bottom of the filter tank 10.

[0027] The cooling liquid filtering device further comprises a first partition plate 4, a second partition plate 5 and a filler 6. The first partition plate 4 and the second partition plate 5 are installed in the filter tank 10 and located at the bottom of the filter tank 10. The containing space 14 is formed between the first partition plate 4 and the second partition plate 5. The filler 6 is arranged in the containing space 14. The outlet end of the composite pipe 3 extends into the containing space 14.

[0028] The cooling liquid filtering device further comprises a maintenance port 7. The maintenance port 7 is installed in the filter tank 10 and communicates with the containing space 14. The maintenance port 7 is arranged on the side surface of the filter tank 10 and horizontally located between the end surfaces of the first partition plate 4 and the second partition plate 5, so as to facilitate replacement of the filler 6.

[0029] The first partition plate 4 and the second partition plate 5 are partition plates with through holes. The filler 6 has a hollow structure and can be spherical or other shapes. The first partition plate 4 and the second partition plate 5 are arranged to facilitate the flow of cooling liquid and limit the movement space of the filler 6. The filler 6 can freely move in the containing space 14.

[0030] The cooling liquid filtering device further comprises a first compressed air inlet B1, and the inlet end of the composite pipe 3 is connected to the ozone generator 2 and the first compressed air inlet B1 respectively.

[0031] The cooling liquid filtering device further comprises a first one-way valve A1 and a second one-way valve A2, the first one-way valve A1 is arranged between the inlet end of the composite pipe 3 and the ozone generator 2, and the second one-way valve A2 is arranged between the inlet end of the composite pipe 3 and the first compressed air inlet B1.

[0032] The cooling liquid filtering device further comprises an inlet port 12 and an outlet port 9, the outlet port 9 is arranged at the upper end of the filtering tank 10, and the inlet port 12 is arranged at the lower end of the filtering tank 10.

[0033] The cooling liquid filtering device further comprises a second compressed air inlet B2, a third one-way valve A3 and a control valve 8, the outlet port 9 is connected to the second compressed air inlet B2 and the control valve 8 respectively, and the third one-way valve A3 is arranged between the outlet port 9 and the second compressed air inlet B2.

[0034] The cooling liquid filtering device further comprises a check valve 11 and a second angle seat valve C2, the inlet port 12 is connected to the check valve 11 and the second angle seat valve C2 respectively. The check valve 11 can prevent the cooling liquid in the filtering tank 10 from flowing backward, and the second angle seat valve C2 is used to control the on-off of gas and liquid during back blowing.

[0035] The cooling liquid filtering device further comprises a self-cleaning outlet 13 and a first angle seat valve C1, the self-cleaning outlet 13 is arranged on the filtering tank 10, and the first angle seat valve C1 is connected to the self-cleaning outlet 13. The first angle seat valve C1 controls the on-off of gas and liquid during self-cleaning.

[0036] Preferably, the inlet end of the composite pipe 3 is arranged at the side of the middle part of the filtering tank 10, the outlet end extends to the bottom end inside the filtering tank 10, the opening of the outlet end faces upward, and the horizontal position of the outlet end is flush with or slightly higher than the upper end surface of the second partition plate 5.

[0037] Preferably, the composite pipe 3, the first one-way valve A1 and the second one-way valve A2 are connected through a three-way assembly.

[0038] The filtering tank 10 of the embodiment comprises a tank body 101 and a cover plate 102, and the tank body 101 and the cover plate 102 are fastened and connected through screws. The outlet port 9 is installed on the cover plate 102, and the remaining components are installed inside or on the outer wall of the tank body 101.

[0039] Preferably, the filter element 1 of the embodiment is in the shape of a rod or a cylinder and is in multiple pieces, and the multiple filter elements 1 extend vertically along the height direction of the filtering tank 10 and are uniformly arranged inside the filtering tank 10.

[0040] The working process of the cooling liquid filtering device of the embodiment is: filtering→sterilization→self-cleaning→back flushing→filtering.

[0041] The working principle of the specific process is as follows:

[0042] The filtering process: the cooling liquid enters the filtering tank 10 from the liquid inlet 12 by the action of the pump, passes through the check valve 11, the second partition plate 5, the filler 6, the first partition plate 4, the filter element 1, the liquid outlet 9 and the control valve 8 in sequence, and is discharged, thereby completing single filtering.

[0043] After the filtering device is used for a certain period of time, not only microorganisms will breed in the cooling liquid, but also microorganisms will breed on the inner wall of the filtering tank 10 and the surface of the filter element 1. The ozone sterilization mode is adopted to sterilize the inside of the filtering tank 10. At the beginning of the sterilization process, the control valve 8 is closed, the first angle seat valve C1 remains in the closed state, the filtering tank 10 stops liquid inlet and liquid outlet, and a large amount of cooling liquid is stored in the filtering tank.

[0044] The sterilization process: the ozone generator 2 starts to work, generates a large amount of ozone and discharges the ozone into the filtering tank 10. The ozone gas enters the inlet end of the composite pipe 3 through the first one-way valve A1, is transported to the bottom of the filtering tank 10 along the composite pipe 3, and is discharged from the outlet end of the composite pipe 3 and mixed with the cooling liquid in the filtering tank 10.

[0045] Because ozone is difficult to dissolve in water due to its own characteristics, the micro-bubble technology is adopted to improve the dissolution efficiency. The specific implementation mode is as follows: when the ozone is discharged from the outlet end of the composite pipe 3, it is in full contact with the filler 6. The filler 6 has a hollow structure, which not only allows the solution and gas to pass through, but more importantly, the large gas bubbles generated when the ozone is discharged into the water are cut into small bubbles, the surface area of the ozone in contact with the water is increased, and the dissolution speed and the final dissolution concentration of the ozone in the cooling liquid are improved. The ozone is fully dissolved in the cooling liquid, which can then fully contact the inner wall of the filtering tank 10 and the outer wall of the filter element 1 together with the cooling liquid, so as to comprehensively kill the microorganisms attached to the inside of the filtering tank 10.

[0046] The sterilization can be delayed for a certain period of time by opening the first angle seat valve C1, which is to allow a part of the ozone to be dissolved in the cooling liquid first, and to prevent the liquid and gas in the filtering tank 10 from reaching the saturation state so that the ozone cannot continue to be charged into the filtering tank 10.

[0047] After a certain amount of ozone is discharged into the filtering tank 10, the ozone generator 2 stops working, the sterilization work is completed, and the first angle seat valve C1 remains in the open state. Because the bacteria killed by the ozone still exist in the filtering tank 10, the cooling liquid and other impurities in the filtering tank 10 are discharged through the self-cleaning process and the back flushing process.

[0048] Self-cleaning process: compressed air enters from the first compressed air inlet B1, passes through the second check valve A2, flows into the composite pipe 3, and finally is discharged from the outlet end of the composite pipe 3 into the filter tank 10, and at the same time, the first angle seat valve C1 is in the open state. During self-cleaning, compressed air is filled into the filter tank 10, and under the action of the filler 6, large air bubbles are generated in the filter tank 10, and then cut into a large number of micro-bubbles, which collide with the inner wall of the tank body 101 and the outer wall of the filter core 1 to produce blasting, thereby separating the impurities attached to the inner wall of the tank body 101 and the surface of the filter core 1. Part of the gas and solution is discharged from the self-cleaning outlet 13 for centralized treatment.

[0049] After self-cleaning, a large amount of cooling liquid and impurities remain in the filter tank 10, and the filter tank 10 is fully emptied through the backflushing process.

[0050] Backflushing process: the first angle seat valve C1 is closed, and the second angle seat valve C2 is opened. Compressed air enters from the second compressed air inlet B2, passes through the third check valve A3, enters the filter tank 10 from the liquid outlet 9, and under the action of the gas pressure, the cooling liquid and impurities in the filter tank 10 are discharged from the liquid outlet 9 together with the gas, and then discharged to the designated area through the second angle seat valve C2 for centralized treatment.

[0051] After the sterilization, self-cleaning and backflushing processes, the impurities and microorganisms in the filter tank 10 are cleaned, ensuring that the inside of the filter tank 10 is fully cleaned and prolonging the service life of the entire filter device, and the filter device can perform the filtering process again.

[0052] The filter device of the utility model has at least the following advantages compared with the traditional filter device:

[0053] 1. The filter device with a novel structure can introduce ozone into the filter tank 10, fully sterilize the inner wall of the filter tank 10 and the surface of the filter core 1, and improve the quality of the cooling liquid and prolong the service life of the filter tank 10.

[0054] 2. The large air bubbles generated by the contact between ozone and the cooling liquid in the filter tank 10 are cut into micro-bubbles under the action of the filler 6, which makes them more easily dissolved in the cooling liquid and improves the sterilization efficiency.

[0055] 3. The pipeline through which ozone enters the filter tank 10 is consistent with the pipeline through which gas enters the filter tank 10 during self-cleaning, so that no additional pipeline is needed, and the installation burden and cost are not increased.

[0056] 4. The connection mode is changed, the self-cleaning outlet 13 is arranged on the side surface of the filter tank 10, and is no longer communicated with the dirty liquid inlet, so that the impact of the dirty liquid on the self-cleaning outlet 13 is avoided.

[0057] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coolant filtration device, characterized in that, The filter includes a filter canister (10), an ozone generator (2), a composite tube (3), a first partition (4), a second partition (5), and a filler (6). The filter canister (10) is equipped with a filter element (1). The ozone generator (2) is located in the filter canister (10) and connected to the inlet end of the composite tube (3). The outlet end of the composite tube (3) extends into the filter canister (10) and extends to the bottom of the filter canister (10). The first partition (4) and the second partition (5) are installed inside the filter tank (10) and located at the bottom of the filter tank (10). A receiving space (14) is formed between the first partition (4) and the second partition (5). The filler (6) is disposed in the receiving space (14). The outlet end of the composite tube (3) extends into the receiving space (14).

2. The coolant filtration device according to claim 1, characterized in that, It also includes a maintenance port (7), which is installed in the filter tank (10) and connected to the receiving space (14).

3. The coolant filtration device according to claim 1, characterized in that, The first partition (4) and the second partition (5) are partitions with through holes, and the filler (6) is a hollow structure.

4. The coolant filtration device according to claim 1, characterized in that, It also includes a first compressed air inlet (B1), the inlet end of which is connected to the ozone generator (2) and the first compressed air inlet (B1).

5. The coolant filtration device according to claim 4, characterized in that, It also includes a first check valve (A1) and a second check valve (A2). The pipeline between the inlet end of the composite pipe (3) and the ozone generator (2) is provided with the first check valve (A1), and the pipeline between the inlet end of the composite pipe (3) and the first compressed air inlet (B1) is provided with the second check valve (A2).

6. The coolant filtration device according to any one of claims 1-5, characterized in that, It also includes an inlet (12) and an outlet (9), the outlet (9) being located at the upper end of the filter tank (10) and the inlet (12) being located at the lower end of the filter tank (10).

7. The coolant filtration device according to claim 6, characterized in that, It also includes a second compressed air inlet (B2), a third check valve (A3) and a control valve (8). The liquid outlet (9) is connected to the second compressed air inlet (B2) and the control valve (8) respectively. The third check valve (A3) is provided between the liquid outlet (9) and the second compressed air inlet (B2).

8. The coolant filtration device according to claim 6, characterized in that, It also includes a check valve (11) and a second angle seat valve (C2), with the inlet (12) connected to the check valve (11) and the second angle seat valve (C2) respectively.

9. The coolant filtration device according to any one of claims 1-5, characterized in that, It also includes a self-cleaning outlet (13) and a first angle seat valve (C1), wherein the self-cleaning outlet (13) is disposed on the filter tank (10) and the first angle seat valve (C1) is connected to the self-cleaning outlet (13).

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