Cooling liquid integrated filtering device
By integrating the filtration device and siphon assembly, the problem of large space occupation and resource waste in centralized coolant management systems in small-scale production units is solved, realizing efficient coolant filtration and utilization, and adapting to the flexible layout of single machines or small-scale production units.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-14
AI Technical Summary
Existing centralized coolant management systems suffer from problems such as large space occupation, resource waste, and energy redundancy in miniaturized production units, making it difficult to meet the flexible layout and high-precision machining requirements of single machines or small-scale production units.
Design an integrated filtration device that integrates the filter, scraper, and siphon assembly into a single housing. The siphon assembly enables online filtration and efficient utilization of the coolant, while the jet injector and Venturi effect further enhance the coolant's utilization rate. Automated management is achieved through a PLC controller.
It achieves efficient filtration of coolant in a limited space, improves coolant utilization, reduces resource waste, adapts to the flexible layout requirements of single machines or small-scale production units, and simplifies equipment structure.
Smart Images

Figure CN224113454U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coolant filtration equipment, and in particular to an integrated coolant filtration device. Background Technology
[0002] In the field of modern high-precision machining, the filtration and purification efficiency of the coolant management system is a key factor in ensuring the stability of machining quality and extending tool life. Its performance directly determines the overall operating cost of the production system. Currently, the industry commonly uses centralized integrated systems for coolant storage, filtration, and supply. While these systems can meet basic process requirements, their standard architecture (including volumetric coolant tanks, multi-stage filtration units, and high-pressure circulating pump sets) has significant limitations: on the one hand, the system requires a large-scale coolant storage space and a complex closed-loop piping network, severely restricting the flexibility of production workshop layout; on the other hand, the inherent energy redundancy problem is particularly prominent when dealing with single machines or small-scale production units, resulting in significant resource waste. It is worth noting that these miniaturized production units often also have stringent requirements for machining accuracy. To address these issues, this application proposes a solution. Summary of the Invention
[0003] Purpose of the utility model: The purpose of this utility model is to provide an integrated coolant filtration device that, while ensuring the filtration accuracy required for precision machining, can be adapted to a single machine or a small-scale production unit to complete the process of coolant filtration and supply.
[0004] Technical Solution: The present invention discloses an integrated coolant filtration device, comprising a housing, wherein the housing is equipped with a filtration device for filtering coolant, a scraper for treating filter residue, and a siphon assembly for siphoning liquid from the scraper into the filtration device. The bottom interface of the filter tank in the filtration device is connected to the scraper via a drain pipe, and the top interface is connected to a clean liquid tank via a pipeline. The outlet of the scraper is connected to the siphon assembly, the inlet of the siphon assembly is connected to the inlet pipeline of the filter tank, and the outlet of the siphon assembly is connected to a dirty liquid tank.
[0005] The system integrates a filter and a scraper inside the tank to achieve online filtration of the coolant. The coolant in the scraper is siphoned into the dirty liquid tank by a siphon assembly, which improves the utilization efficiency of the coolant.
[0006] Preferably, the siphon assembly includes an ejector and a second angle seat valve. The suction port of the ejector is connected to the slag scraper, the inlet of the ejector is connected to the liquid inlet pipe of the filter tank through a filter branch pipe, and the outlet of the ejector is connected to the dirty liquid tank. The second angle seat valve is installed on the filter branch pipe.
[0007] The coolant in the filter tank is introduced into the inlet of the ejector, enters the ejector at high speed, and is discharged into the dirty liquid tank at the outlet of the ejector. During this process, the Venturi effect is utilized to draw in the coolant from the upper layer of the scraper through the suction port of the ejector and then discharge it into the dirty liquid tank through the outlet of the ejector, thereby improving the utilization efficiency of the coolant. The second angle seat valve is set to control the on and off of the siphon inlet during this process.
[0008] Preferably, the bottom of the housing is provided with a dirty liquid tank and a clean liquid tank. The dirty liquid tank is equipped with a filter pump, which draws out the dirty liquid through the inlet pipe and sends it into the filter tank through the bottom interface of the filter tank. The clean liquid tank is equipped with a liquid supply pump, which draws out the clean liquid and sends it into the machine.
[0009] The dirty liquid tank stores the coolant to be filtered, while the clean liquid tank stores the filtered coolant.
[0010] Preferably, one end of the sewage pipe is connected to the slag scraper, and the other end is connected to the bottom interface of the filter tank.
[0011] The drain pipe is designed to guide the dirty liquid generated during the backflushing process of the filter tank into the scraper.
[0012] Preferably, a first angle seat valve is installed on the drain pipe connecting the slag scraper and the filter tank.
[0013] The first angle seat valve is used to control the opening and closing of the sewage pipe.
[0014] Preferably, the pipeline is equipped with a triangular seat valve for controlling the opening and closing of the pipeline.
[0015] Preferably, the filter canister is provided with a backflush inlet connected to an external air source, with one end of the backflush inlet connected to the external air source and the other end connected to the top interface of the filter canister.
[0016] The backflush inlet is used for the backflush process of the filter canister. It introduces external high-pressure airflow to backflush the filter canister, clean the impurities adhering to the filter element inside the filter canister, and clean the filter canister.
[0017] Preferably, the bottom of the box is provided with casters for transporting the box.
[0018] Preferably, the device also includes a PLC controller, which is electrically connected to the filter, the scraper, and the siphon assembly.
[0019] The PLC controller controls the start and stop of the filter unit, scraper, and siphon assembly.
[0020] Beneficial effects: Compared with the prior art, this utility model has the following advantages:
[0021] (1) The filter device is integrated into a box, which does not require extra space and can be moved between different workstations, making it easy to transport.
[0022] (2) The coolant in the scraper is drawn out by the siphon assembly, which does not require an additional pump to operate, simplifying the equipment structure, improving the utilization rate of the box space, and further improving the integration of the box.
[0023] (3) The coolant in the scraper is drawn out by the siphon assembly, which improves the utilization rate of the coolant and reduces the loss of coolant in the filtration process. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the external three-dimensional structure of this utility model.
[0025] Figure 2 This is a three-dimensional structural diagram of the present invention after removing the outer shell on one side of the box.
[0026] Figure 3 This is a three-dimensional structural diagram of the present invention after removing the outer shell on the other side of the box.
[0027] Figure 4 This is an enlarged three-dimensional view of the siphon component in this utility model. Detailed Implementation
[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings.
[0029] Example 1:
[0030] See appendix Figures 1-4 The figure shows an integrated coolant filtration device of this utility model, which includes a housing 1. Inside the housing 1, there is a filtration device for filtering coolant, a scraper 2 for treating filter residue, and a siphon assembly for siphoning the liquid in the scraper 2 into the filtration device. The bottom interface of the filter tank 3 in the filtration device is connected to the scraper 2 through a drain pipe 8, and the top interface is connected to the clean liquid tank 4 through a pipe 18. The outlet of the scraper 2 is connected to the siphon assembly, the inlet of the siphon assembly is connected to the inlet pipe 17 of the filter tank 3, and the outlet of the siphon assembly is connected to the dirty liquid tank 5.
[0031] The filter device and the scraper 2 are integrated inside the housing 1 to complete the online filtration of the coolant. The coolant in the scraper 2 is siphoned into the dirty liquid tank 5 by the siphon assembly, which improves the utilization efficiency of the coolant.
[0032] In this embodiment, the siphon assembly includes an ejector 11 and a second angle seat valve 12. The suction port of the ejector 11 is connected to the scraper 2, the inlet of the ejector 12 is connected to the liquid inlet pipe 17 of the filter tank 3 through the filter branch pipe 13, and the outlet of the ejector 11 is connected to the dirty liquid tank 5. The second angle seat valve 12 is installed on the filter branch pipe 13. The inlet of the ejector 11 introduces high-speed coolant drawn into the filter tank 3 by the filter pump 6, which enters the ejector 11 at high speed from the inlet and is discharged into the dirty liquid tank 5 at the outlet of the ejector 11. During this process, the Venturi effect is utilized to draw in the coolant from the upper layer of the scraper 2 through the suction port of the ejector 11 and then discharge it into the dirty liquid tank 5 through the outlet of the ejector 11, thereby improving the utilization efficiency of the coolant. The second angle seat valve 12 is used to control the on / off of the siphon liquid inlet during this process.
[0033] In this embodiment, the bottom of the housing 1 is provided with a dirty liquid tank 5 and a clean liquid tank 4. The dirty liquid tank 5 is provided with a filter pump 6, which draws out the dirty liquid through the inlet pipe 17 and sends it into the filter tank 3 through the bottom interface of the filter tank 3. The clean liquid tank 4 is provided with a liquid supply pump 7, which draws out the clean liquid and sends it into the machine. In this application, the dirty liquid tank 5 stores the coolant to be filtered, and the clean liquid tank 4 stores the filtered coolant.
[0034] In this embodiment, one end of the drain pipe 8 is connected to the slag scraper 2, and the other end is connected to the bottom interface of the filter tank 3.
[0035] In this embodiment, a first angle seat valve 10 is provided on the sewage pipe 8 connecting the slag scraper 2 and the filter tank 3. The first angle seat valve 10 is used to control the opening and closing of the sewage pipe 8.
[0036] In this embodiment, a triangular seat valve 14 for controlling the opening and closing of the pipeline 18 is provided on the pipeline 18.
[0037] In this embodiment, the filter canister 3 is provided with a backflush inlet 9 connected to an external air source. One end of the backflush inlet 9 is connected to the external air source, and the other end is connected to the top interface of the filter canister 3. The backflush inlet 9 is provided for the filter canister 3 to carry out the backflush process, introduce external high-pressure airflow to backflush the filter canister 3, clean the impurities adhering to the filter element inside the filter canister 3, and clean the filter canister 3.
[0038] In this embodiment, the bottom of the box 1 is provided with casters 15 for transporting the box 1.
[0039] In this embodiment, a PLC controller is also included. The PLC controller is electrically connected to the filter device, the scraper 2, and the siphon assembly. The PLC controller controls the start and stop of the filter device, the scraper 2, and the siphon assembly.
[0040] Example 2:
[0041] During operation, the coolant to be processed enters the dirty liquid tank 5 through the dirty liquid inlet 16 for temporary storage. The filter pump 6 starts and draws the coolant from the dirty liquid tank 5 into the filter tank 3 for filtration. Then, the coolant enters the clean liquid tank 4 from the outlet of the filter tank 3. The supply pump 7 in the clean liquid tank 4 starts and supplies the filtered coolant in the clean liquid tank 4 to the machine. At this time, the third angle seat valve 14 is opened, and the first angle seat valve 10 and the second angle seat valve 12 are closed.
[0042] When a certain amount of solid particles and impurities accumulate in the filter tank 3, the filter tank 3 starts a self-cleaning process. An external compressed air source enters the filter tank 3 through the backflush inlet 9 to backflush the filter tank 3. Under the action of air pressure, the dirty liquid containing solid particles is discharged from the drain pipe 8 at the bottom of the filter tank 3 and enters the slag scraper 2. At this time, the filter pump 6 and the liquid supply pump 7 both stop running, the first angle seat valve 10 opens, and the second angle seat valve 12 and the third angle seat valve 14 close.
[0043] After a period of time, solid particulate impurities in the scraper 2 settle to the bottom of the scraper 2 by natural sedimentation. The upper layer of coolant in the scraper 2 can be filtered and recycled. At this time, the filter pump 6 continues to work, the second angle seat valve 12 is opened, and part of the coolant is drawn into the filter branch pipe 13 by the filter pump 6 and then enters the ejector 11 at high speed. Finally, it flows out from the outlet of the ejector 11 and into the dirty liquid tank 5. Under the action of the ejector 11, using the Venturi effect, the upper layer of coolant in the scraper 2 is drawn into the ejector 11 by the suction port of the ejector 11 and enters the dirty liquid tank 5 through the outlet of the ejector 11, entering the filtration cycle.
Claims
1. A coolant integrated filtration device, comprising a housing (1), characterized in that: The housing (1) is equipped with a filter device for filtering coolant, a scraper (2) for processing filter residue, and a siphon assembly for sucking out liquid from the scraper (2). The bottom interface of the filter tank (3) in the filter device is connected to the scraper (2) through a drain pipe (8), and the top interface is connected to the clean liquid tank (4) through a pipe (18). The outlet of the scraper (2) is connected to the siphon assembly, the inlet of the siphon assembly is connected to the inlet pipe (17) of the filter tank (3), and the outlet of the siphon assembly is connected to the dirty liquid tank (5).
2. The integrated coolant filtration device according to claim 1, characterized in that: The siphon assembly includes an ejector (11) and a second angle seat valve (12). The suction port of the ejector (11) is connected to the scraper (2). The inlet of the ejector (11) is connected to the liquid inlet pipe (17) of the filter tank (3) through the filter branch pipe (13). The outlet of the ejector (11) is connected to the dirty liquid tank (5). The second angle seat valve (12) is installed on the filter branch pipe (13).
3. The integrated coolant filtration device according to claim 1, characterized in that: The bottom of the housing (1) is provided with a dirty liquid tank (5) and a clean liquid tank (4). The dirty liquid tank (5) is provided with a filter pump (6). After the dirty liquid is drawn through the inlet pipe (17), it is sent into the filter tank (3) through the bottom interface of the filter tank (3). The clean liquid tank (4) is provided with a liquid supply pump (7). The clean liquid is drawn and sent into the machine.
4. The integrated coolant filtration device according to claim 1, characterized in that: The sewage pipe (8) is connected to the scraper (2) at one end and to the bottom interface of the filter tank (3) at the other end.
5. The integrated coolant filtration device according to claim 1, characterized in that: A first angle seat valve (10) is installed on the drain pipe (8) connecting the slag scraper (2) and the filter tank (3).
6. The integrated coolant filtration device according to claim 1, characterized in that: The pipeline (18) is equipped with a triangular seat valve (14) for controlling the opening and closing of the pipeline (18).
7. The integrated coolant filtration device according to claim 1, characterized in that: The filter tank (3) is provided with a backflush inlet (9) that connects to an external air source. One end of the backflush inlet (9) is connected to an external air source, and the other end is connected to the top interface of the filter tank (3).
8. The integrated coolant filtration device according to claim 1, characterized in that: The bottom of the box (1) is provided with casters (15) for transporting the box (1).
9. The integrated coolant filtration device according to claim 1, characterized in that: It also includes a PLC controller, which is electrically connected to the filter, the scraper (2) and the siphon assembly.