Filtering system

Abstract

The utility model relates to the technical field of liquid filtration, in particular to a filtration system, which comprises a liquid inlet pipe and a liquid outlet pipe, one side of the liquid inlet pipe is connected with a control valve, one side of the control valve is provided with a first connecting pipe, one side of the first connecting pipe is provided with a filtration liquid supply pump, and the other side of the first connecting pipe is provided with a second connecting pipe. A three-way pipe is installed on one side of the filtering liquid supply pump, the other two ports of the three-way pipe are connected with a filtering device, the filtering device is composed of two sets of filtering units which operate independently, and the other end of the filtering device is provided with a second connecting pipe which is connected with the two sets of filtering units in a unified mode; the other end of the second connecting pipe is provided with a pressure pump, the other end of the pressure pump is provided with a third connecting pipe, the other end of the third connecting pipe is provided with a secondary filter, the secondary filter is arranged right above the filtering liquid supply pump, and the other end of the secondary filter is provided with a liquid outlet pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid filtration, in particular to a filtration system. Background Art

[0002] Liquid filtration technology is widely used in various industries, such as automobiles, chemicals, electronics, food, metal processing, paints and coatings, petrochemicals, pharmaceuticals, resins, plastics, inks and coatings, water treatment, etc. In these industries, liquid filtration is not only used to remove impurities in liquids, but also to improve the cleanliness and quality of products. The filter is the key equipment to achieve this process. It is usually composed of a filter housing and a filter element. In response to the requirements of industrial filtration, a complete set of filtration systems is usually required to complete the task of liquid medium filtration.

[0003] At present, a Chinese patent with announcement number CN207986707U discloses a liquid filtration system and a filter thereof, which includes a sewage pool, a filter, a water pump, a clean water pool, and an air supply device. The filter is an underwater filter arranged in the sewage pool. The clean liquid chamber, water pump, and clean water pool of the filter are connected to form a liquid filtration passage. The air supply device, the filter concentrate chamber, water pump, and clean water pool are connected to form a backwash passage. A first valve group for controlling the on-off of the liquid filtration passage is provided on the liquid filtration passage, and a second valve group for controlling the on-off of the backwash passage is provided on the backwash passage.

[0004] Although this liquid filtration system realizes liquid filtration and backwashing of the filtration device through the filtration flow path and the backwash flow path, it can effectively ensure the filtration effect and water quality while reducing the number of equipment, and greatly simplifies the original liquid filtration process system. However, this filtration system still has defects: there are no parallel filtration units and pipelines in the system. If the filtration components in the filtration system need to be cleaned, maintained or replaced, the system needs to be completely shut down and cannot be used normally. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present utility model is to provide a filtering system, and the above technical purpose is achieved through the following technical solutions:

[0006] A filtering system comprises a liquid inlet pipe and a liquid outlet pipe, wherein a control valve is connected and installed on one side of the liquid inlet pipe, a first connecting pipe is installed on one side of the control valve, a filter liquid supply pump is installed on one side of the first connecting pipe, a tee pipe is installed on one side of the filter liquid supply pump, the first connecting pipe is connected to the inlet position of the filter liquid supply pump, one end of the tee pipe is connected to the outlet position of the filter liquid supply pump, a filtering device is connected to the other two ports of the tee pipe, the filtering device is composed of two groups of independently operated filtering units, a second connecting pipe connected to the two groups of filtering units is provided at the other end of the filtering device, a pressure pump is installed at the other end of the second connecting pipe, a third connecting pipe is installed at the other end of the pressure pump, a secondary filter is installed at the other end of the third connecting pipe, the secondary filter is installed directly above the filter liquid supply pump, a liquid outlet pipe is installed at the other end of the secondary filter, the third connecting pipe is connected to the inlet position of the secondary filter, and the liquid outlet pipe is connected to the outlet position of the secondary filter.

[0007] Further, the filter unit includes a first one-way solenoid valve, a first filter, a first filter inlet pipe, a first filter outlet pipe, a second one-way solenoid valve, a second filter, a second inlet filter pipe, and a second outlet filter pipe. The first filter inlet pipe and the second filter inlet pipe are respectively connected to the two ends of the three-way pipe, and the first filter and the second filter are both installed on one side of the filter liquid supply pump. The first inlet filter pipe and the first outlet filter pipe are connected to the first filter, and the second inlet filter pipe and the second outlet filter pipe are connected to the second filter. The first one-way solenoid valve is arranged on the pipeline of the first filter inlet pipe, and the second one-way solenoid valve is arranged on the pipeline of the second filter inlet pipe.

[0008] Furthermore, a liquid flow detector is installed in the pipeline of the third connecting pipe.

[0009] Furthermore, a post-pump pressure gauge is installed in the pipeline of the third connecting pipe, and the post-pump pressure gauge is installed on one side of the liquid flow detector.

[0010] Furthermore, a connection base fixed thereto is disposed at the lower end of the filter liquid supply pump, the secondary filter is fixed below the connection base, and a filter base is fixed at the lower end of the secondary filter.

[0011] Furthermore, a reinforcing rod is fixedly provided between the filter base and the connecting base.

[0012] In summary, the utility model has the following beneficial effects:

[0013] ① The utility model is provided with two filtering procedures, which can improve the filtering effect of the liquid medium;

[0014] ② In the first filtering step of the utility model, two sets of filter units that can work independently are set. When both sets of filter units are fully opened, the filtering efficiency can be improved. When only one set of filter units is opened, the other set of filter units can be cleaned, maintained or replaced;

[0015] ③ The utility model is equipped with flow detection and pressure detection functions in the pipeline, which can monitor the medium conditions in the filtration system in real time;

[0016] ④ The utility model installs the filter liquid supply pump and a group of filters in the same structure, thereby improving the space utilization rate of the system equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application, but do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 It is an oblique view of the utility model;

[0019] Figure 2 It is a front view of the utility model;

[0020] Figure 3 It is a rear view of the utility model;

[0021] Figure 4 It is a top view of the utility model.

[0022] In the figure, 1, liquid inlet pipe; 2, liquid outlet pipe; 3, control valve; 4, first connecting pipe; 5, filter liquid supply pump; 6, three-way pipe; 7, second connecting pipe; 8, booster pump; 9, third connecting pipe; 10, secondary filter; 11, first one-way solenoid valve; 12, first filter; 13, first filter liquid inlet pipe; 14, first filter liquid outlet pipe; 15, second one-way solenoid valve; 16, second filter; 17, second liquid inlet filter pipe; 18, second liquid outlet filter pipe; 19, liquid flow detector; 20, pressure gauge after pump; 21, connecting base; 22, filter base; 23, reinforcing rod. DETAILED DESCRIPTION

[0023] The above and other technical contents, features and functions of the present invention are described in detail below with reference to the attached Figure 1 To Attachment Figure 4 It will be clearly presented in the detailed description of the embodiments that the structural contents mentioned in the following embodiments are all referenced to the drawings in the specification.

[0024] Various exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings. Example

[0025] A filtering system includes a liquid inlet pipe 1 and a liquid outlet pipe 2. A control valve 3 is connected and installed on one side of the liquid inlet pipe 1. A first connecting pipe 4 is installed on one side of the control valve 3. A filtering liquid supply pump 5 is installed on one side of the first connecting pipe 4. The filtering liquid supply pump 5 is used to extract liquid to be filtered. A connecting base 21 is fixed to the lower end of the filtering liquid supply pump 5. The connecting base 21 is used to support the filtering liquid supply pump 5 and provide a base for installation. At the same time, a secondary filter 10 is provided at the lower end of the connecting base 21. The filtering liquid supply pump 5, the connecting base 21 and the secondary filter 10 are in an integrated structure, which greatly saves the space occupied by the equipment and increases the space utilization rate of the equipment.

[0026] A tee pipe 6 is installed on one side of the filter liquid supply pump 5, the first connecting pipe 4 is connected to the inlet position of the filter liquid supply pump 5, one end of the tee pipe 6 is connected to the outlet position of the filter liquid supply pump 5, and the other two ports of the tee pipe 6 are connected with a filtering device, which is composed of two groups of independently operated filtering units. The two filtering units can work simultaneously or independently. The filtering unit includes a first one-way solenoid valve 11, a first filter 12, a first filter liquid inlet pipe 13, a first filter liquid outlet pipe 14, a second one-way solenoid valve 15, a second filter 16, and a second The liquid inlet filter tube 17, the second liquid outlet filter tube 18, the first filter liquid inlet pipe 13 and the second filter liquid inlet pipe 1 are respectively connected at both ends of the three-way pipe 6, the first filter 12 and the second filter 16 are both installed on one side of the filter liquid supply pump 5, the first liquid inlet filter tube and the first liquid outlet filter tube are connected to the first filter 12, the second liquid inlet filter tube 17 and the second liquid outlet filter tube 18 are connected to the second filter 16, the first one-way solenoid valve 11 is arranged on the pipeline of the first filter liquid inlet pipe 13, and the second one-way solenoid valve 15 is arranged on the pipeline of the second filter liquid inlet pipe 1.

[0027] The other end of the filtering device is provided with a second connecting pipe 7 which is uniformly connected to the two groups of filtering units, the other end of the second connecting pipe 7 is installed with a pressure pump 8, the other end of the pressure pump 8 is installed with a third connecting pipe 9, the other end of the third connecting pipe 9 is installed and connected to the secondary filter 10, a liquid flow detector 19 is installed in the pipeline of the third connecting pipe 9, and a post-pump pressure gauge 20 is installed in the pipeline of the third connecting pipe 9, and the post-pump pressure gauge 20 is installed on one side of the liquid flow detector 19.

[0028] The secondary filter 10 is installed directly above the filter liquid supply pump 5. Since a connecting base 21 is provided between the two structures, the secondary filter 10 is fixed below the connecting base 21. A filter base 22 is fixedly provided at the lower end of the secondary filter 10. Four reinforcing rods 23 are fixedly provided between the filter base 22 and the connecting base 21. The four reinforcing rods 23 are arranged around the outside of the secondary filter 10. The four reinforcing rods 23 strengthen the connection structure between the secondary filter 10 and the filter liquid supply pump 5 to keep it stable. A liquid outlet pipe 2 is installed at the other end of the secondary filter 10. The third connecting pipe 9 is connected to the inlet position of the secondary filter 10, and the liquid outlet pipe 2 is connected to the outlet position of the secondary filter 10.

[0029] In the embodiment of the utility model, the liquid enters the filtration system from the liquid inlet pipe 1. When the control valve 3 is in the liquid outlet open state, the liquid can naturally pass through the control valve 3 and enter the formal filtration system. The filtration liquid supply pump 5 pumps the liquid into the three-way pipe 6. At this time, four situations may occur in the system:

[0030] In the first case, the first one-way solenoid valve 11 and the second one-way solenoid valve 15 are both in a closed state. At this time, the liquid is blocked and cannot flow into the first filter 12 and the second filter 16. At this time, it is necessary to close the front control valve 3 to block the liquid from entering the system and prevent the pipeline pressure from overloading.

[0031] In the second case, the first one-way solenoid valve 11 and the second one-way solenoid valve 15 are both in the open state. At this time, the liquid will flow evenly into the first filter 12 and the second filter 16 from both ends of the three-way pipe 6 respectively, and after passing through the filtering action of the first filter 12 and the second filter 16, it will finally flow out to the second connecting pipe 7.

[0032] In the third case, the first one-way solenoid valve 11 is opened and the second one-way solenoid valve 15 is closed. At this time, the first filter 12 works normally, the liquid enters the first filter 12 and flows out, and the pipeline leading to the second filter 16 is blocked. Since the second filter 16 is not involved in the work at this time, the filter screen in the second filter 16 can be cleaned, maintained, replaced, etc.

[0033] In the fourth case, the first one-way solenoid valve 11 is closed and the second one-way solenoid valve 15 is opened. At this time, the second filter 16 works normally, the liquid enters the second filter 16 and flows out, and the pipeline leading to the first filter 12 is blocked. Since the first filter 12 is not involved in the work at this time, the filter screen in the first filter 12 can be cleaned, maintained, replaced, etc.

[0034] After the liquid passes through the first filtering step, it is pumped from the second connecting pipe 7 to the third connecting pipe 9 under the influence of the pressure pump 8. When the liquid flows in the third connecting pipe 9, it passes through the liquid flow detector 19 and the post-pump pressure gauge 20 in sequence. The liquid flow detector 19 detects the flow rate of the medium in the third connecting pipe 9, and the post-pump pressure gauge 20 detects the pressure of the medium in the third connecting pipe 9. Finally, the liquid medium enters the secondary filter 10, and after secondary filtration, it flows out of the secondary filter 10.

[0035] The above is a further detailed description of the present invention in combination with a specific implementation method, and it cannot be determined that the specific implementation of the present invention is limited to this; for technical personnel in the field of the present invention and related technical fields, based on the technical solution of the present invention, the expansion and replacement of operating methods and data should all fall within the protection scope of the present invention.

Claims

1. A filtering system, characterized in that: The invention comprises a liquid inlet pipe (1) and a liquid outlet pipe (2), wherein a control valve (3) is connected to one side of the liquid inlet pipe (1), a first connecting pipe (4) is installed on one side of the control valve (3), a filtering liquid supply pump (5) is installed on one side of the first connecting pipe (4), a tee pipe (6) is installed on one side of the filtering liquid supply pump (5), the first connecting pipe (4) is connected to the inlet position of the filtering liquid supply pump (5), one end of the tee pipe (6) is connected to the outlet position of the filtering liquid supply pump (5), and a filtering device is connected to the other two ports of the tee pipe (6), wherein the filtering device is composed of two groups of independently operated filtering units, and the filtering device is composed of two groups of independently operated filtering units. The other end of the filtering device is provided with a second connecting pipe (7) which is uniformly connected to the two groups of filtering units, the other end of the second connecting pipe (7) is installed with a pressure pump (8), the other end of the pressure pump (8) is installed with a third connecting pipe (9), the other end of the third connecting pipe (9) is installed with a secondary filter (10), the secondary filter (10) is installed just above the filter liquid supply pump (5), the other end of the secondary filter (10) is installed with a liquid outlet pipe (2), the third connecting pipe (9) is connected to the inlet position of the secondary filter (10), and the liquid outlet pipe (2) is connected to the outlet position of the secondary filter (10).

2. A filtration system according to claim 1, characterized in that: The filter unit comprises a first one-way solenoid valve (11), a first filter (12), a first filter inlet pipe (13), a first filter outlet pipe (14), a second one-way solenoid valve (15), a second filter (16), a second inlet filter pipe (17), and a second outlet filter pipe (18); the first filter inlet pipe (13) and the second filter inlet pipe (1) are respectively connected to the two ends of a three-way pipe (6); the first filter (12) and the second filter (16) are both installed on one side of a filter liquid supply pump (5); the first filter inlet pipe and the first filter outlet pipe are connected to the first filter (12); the second inlet filter pipe (17) and the second outlet filter pipe (18) are connected to the second filter (16); the first one-way solenoid valve (11) is arranged on the pipeline of the first filter inlet pipe (13); and the second one-way solenoid valve (15) is arranged on the pipeline of the second filter inlet pipe (1).

3. A filtration system according to claim 1, characterized in that: A liquid flow detector (19) is installed in the pipeline of the third connecting pipe (9).

4. A filtration system according to claim 1, characterized in that: A post-pump pressure gauge (20) is installed in the pipeline of the third connecting pipe (9), and the post-pump pressure gauge (20) is installed on one side of the liquid flow detector (19).

5. A filtration system according to claim 1, characterized in that: The lower end of the filter liquid supply pump (5) is provided with a connection base (21) fixed thereto, the secondary filter (10) is fixed below the connection base (21), and the lower end of the secondary filter (10) is fixed with a filter base (22).

6. A filtering system according to claim 5, characterized in that: A reinforcing rod (23) is fixedly provided between the filter base (22) and the connecting base (21).

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