Low-resistance pipeline filtering device

Abstract

The utility model relates to the technical field of pipeline filtering devices, and discloses a low-resistance pipeline filtering device which comprises a filtering cylinder body, a filtering cavity is formed in the filtering cylinder body, a filtering assembly is installed in the filtering cavity, and a first pipeline is arranged on the side, located on the filtering assembly, of the filtering cylinder body. A second pipeline is arranged on the filter cartridge main body on the other side of the filter assembly, the first pipeline is provided with a water flow inlet, and the second pipeline is provided with a water flow outlet; the filter assembly comprises a first water filter screen, a second water filter screen, a third water filter screen and a fourth water filter screen which are arranged in sequence, and an S-shaped channel is formed among the first water filter screen, the second water filter screen, the third water filter screen and the fourth water filter screen; the S-shaped channel is formed between the filtering assemblies, so that the filtering resistance of the pipeline is effectively reduced, and the service life of the pipeline filtering device is remarkably prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline filtering devices, in particular to a low-resistance pipeline filtering device. Background Art

[0002] In the field of construction engineering, water and electricity installation is one of the common engineering installations. After the water pipeline is installed, due to the requirements of the use environment, such as the pipelines used for central air conditioning, high water quality requirements are required. The transmitted water flow cannot contain too many impurities, otherwise it will not only clog the pipeline, but also damage the valves, instruments and other equipment on the pipeline. The existing technology usually installs a pipeline filter device on the water pipeline to filter out a large amount of impurities in the water flow. However, due to the excessive resistance of the filter screen, the existing pipeline filter device is often prone to water flow breaking through the internal filter screen of the filter device, and the service life is too short. In view of this, the inventor has made a new invention. Utility Model Content

[0003] The purpose of the utility model is to provide a low-resistance pipeline filtering device in view of the deficiencies in the prior art, which has the characteristics of low resistance and long service life.

[0004] To achieve the above-mentioned purpose, the utility model is a low-resistance pipeline filtering device, comprising a filter cartridge body, a filter cavity is provided inside the filter cartridge body, a filter assembly is installed in the filter cavity, the filter cartridge body is provided with a first pipe on one side of the filter assembly, the filter cartridge body is provided with a second pipe on the other side of the filter assembly, the first pipe is provided with a water inlet, and the second pipe is provided with a water outlet; the filter assembly comprises a first water filter net, a second water filter net, a third water filter net and a fourth water filter net arranged in sequence, and an S-shaped channel is formed between the first water filter net, the second water filter net, the third water filter net and the fourth water filter net.

[0005] Preferably, a sewage outlet is also provided at the bottom of the filter cartridge body.

[0006] Preferably, the sewage outlet is equipped with a drainage valve.

[0007] Preferably, a first gap is provided between the first water filter screen and the bottom end of the filter cartridge body, the height of the first gap is D1, the height of the filter cavity is D2, and the ratio of D1 to D2 is 1:16.

[0008] Preferably, the first pipeline and the second pipeline each include a first joint, a second joint and a third joint which are arranged in sequence; and the outer diameters of the first joint, the second joint and the third joint increase in sequence.

[0009] Preferably, a first sealing ring is sleeved between the first joint and the second joint; and a second sealing ring is sleeved between the second joint and the third joint.

[0010] Preferably, a mounting flange is provided at the top end of the filter cartridge body.

[0011] Preferably, the first water filter net, the second water filter net, the third water filter net and the fourth water filter net are hot-melt welded to the inner wall of the filter cartridge body.

[0012] Beneficial effects: Compared with the prior art, the utility model is a low-resistance pipeline filtering device, which has the following advantages: 1. An S-shaped channel is formed between the filtering components, which effectively reduces the filtering resistance of the pipeline and significantly extends the service life of the pipeline filtering device; 2. The outflow and inflow pipes of the pipeline filtering device are both provided with reducing joints, which are suitable for connecting pipes of different diameters and have a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 This is a schematic diagram of the filter assembly structure of the present utility model.

[0015] Figure 3 This is a schematic diagram of the internal structure of the water storage tank of the present utility model.

[0016] Reference numerals include:

[0017] Filter cartridge body--1, first pipe--11, water inlet--111, second pipe--12, water outlet--121, sewage outlet--13, drain valve--131, first joint--14, second joint--15, third joint--16, mounting flange--17, filter chamber--2, filter assembly--3, first water filter net--31, first gap--311, second water filter net--32, third water filter net--33, fourth water filter net--34, first sealing ring--4, second sealing ring--5. DETAILED DESCRIPTION

[0018] The following is combined with Figures 1 to 3 The utility model is described in detail.

[0019] The utility model is a low-resistance pipeline filtering device, comprising a filter cartridge body 1, a filter cavity 2 being provided inside the filter cartridge body 1, a filter assembly 3 being installed in the filter cavity 2, a first pipe 11 being provided on one side of the filter assembly 3 of the filter cartridge body 1, a second pipe 12 being provided on the other side of the filter assembly 3 of the filter cartridge body 1, the first pipe 11 being provided with a water inlet 111, and the second pipe 12 being provided with a water outlet 121; the filter assembly 3 comprising a first water filter net 31, a second water filter net 32, a third water filter net 33 and a fourth water filter net 34 being arranged in sequence, a gap being provided between the first water filter net 31, the second water filter net 32, the third water filter net 33 and the fourth water filter net 34 and the top end or the bottom end of the filter cartridge body 1, and the four gaps together form an S-shaped channel. When the pipeline filter device is in use, water flows into the filter cartridge body 1 through the water inlet 111, and then flows through the filter assembly 3. When the water flow is turbulent, the water flow can partially flow into the next filter screen with the help of the S-shaped channel, realizing distributed filtration, automatically reducing the filtration resistance, and extending the service life of the pipeline filter device. Finally, the filtered water is discharged from the water outlet 121.

[0020] Preferably, a sewage outlet 13 is further provided at the bottom of the filter cartridge body 1. The sewage outlet 13 facilitates the discharge of impurities and the like accumulated at the bottom of the filter cartridge body 1, and facilitates the cleaning of the filter cartridge body 1.

[0021] As an embodiment, the drain outlet 13 is equipped with a drain valve 131. When the drain outlet 13 is not in use, the drain valve 131 is used to close the drain outlet 13, thereby effectively preventing unfiltered water from flowing out of the drain outlet 13.

[0022] Preferably, a first gap 311 is provided between the first water filter screen 31 and the bottom end of the filter cartridge body 1, a second gap is provided between the second water filter screen 32 and the top end of the filter cartridge body 1, a third gap is provided between the third water filter screen 33 and the bottom end of the filter cartridge body 1, and a fourth gap is provided between the fourth water filter screen 34 and the top end of the filter cartridge body 1. These four gaps together form an S-shaped channel. The height of the first gap 311 is D1 (all four gaps have the same height), and the height of the filter chamber 2 is D2. The ratio of D1 to D2 is 1:16. The gap height should not be too large, otherwise it will adversely affect the filtration quality of the water flow, nor too small, otherwise it will fail to effectively reduce the filtration resistance generated by the filter assembly 3. Experiments have shown that when the gap height is one-sixteenth of the total height of the filter cartridge body 1, the above problem can be effectively solved, ensuring that both filtration resistance and filtration quality are not affected.

[0023] In order to further expand the scope of application of the pipeline filtering device, the first pipeline 11 and the second pipeline 12 both include a first joint 14, a second joint 15 and a third joint 16 arranged in sequence; the outer diameters of the first joint 14, the second joint 15 and the third joint 16 increase successively, and the externally connected pipeline can be installed even if the size does not correspond to the joint.

[0024] Preferably, a first sealing ring 4 is sleeved between the first joint 14 and the second joint 15, and a second sealing ring 5 is sleeved between the second joint 15 and the third joint 16. The sealing ring is used to seal the connection gap to prevent water leakage after the pipes are connected, affecting the filtration process and environmental hygiene.

[0025] As an embodiment, a mounting flange 17 is provided at the top of the filter cartridge body 1. The mounting flange 17 facilitates the connection between the pipeline filter device and external equipment and facilitates the installation of the pipeline filter device.

[0026] Preferably, the first water filter net 31 , the second water filter net 32 ​​, the third water filter net 33 and the fourth water filter net 34 are hot-melt welded to the inner wall of the filter cartridge body 1 . This connection method provides a secure connection and a higher connection efficiency.

[0027] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A low resistance pipeline filtering device, characterized in that: The invention comprises a filter cartridge body (1), wherein a filter cavity (2) is arranged inside the filter cartridge body (1), a filter assembly (3) is installed in the filter cavity (2), a first pipe (11) is arranged on one side of the filter assembly (3) on the filter cartridge body (1), and a second pipe (12) is arranged on the other side of the filter assembly (3) on the filter cartridge body (1), the first pipe (11) is provided with a water inlet (111), and the second pipe (12) is provided with a water outlet (121); the filter assembly (3) comprises a first water filter net (31), a second water filter net (32), a third water filter net (33) and a fourth water filter net (34) which are arranged in sequence, and an S-shaped channel is formed between the first water filter net (31), the second water filter net (32), the third water filter net (33) and the fourth water filter net (34).

2. A low resistance pipeline filtering device according to claim 1, characterized in that: The bottom of the filter cartridge body (1) is also provided with a sewage outlet (13).

3. A low resistance pipeline filtering device according to claim 2, characterized in that: The sewage outlet (13) is equipped with a drainage valve (131).

4. A low resistance pipeline filtering device according to claim 1, characterized in that: A first gap (311) is provided between the first water filter net (31) and the bottom end of the filter cartridge body (1); the height of the first gap (311) is D1; ​​the height of the filter cavity (2) is D2; and the ratio of D1 to D2 is 1:

16.

5. The low resistance pipeline filtering device according to claim 1, characterized in that: The first pipeline (11) and the second pipeline (12) both comprise a first joint (14), a second joint (15) and a third joint (16) which are arranged in sequence; the outer diameters of the first joint (14), the second joint (15) and the third joint (16) increase in sequence.

6. A low resistance pipeline filtering device according to claim 5, characterized in that: A first sealing ring (4) is sleeved between the first joint (14) and the second joint (15); and a second sealing ring (5) is sleeved between the second joint (15) and the third joint (16).

7. The low resistance pipeline filtering device according to claim 1, characterized in that: A mounting flange (17) is provided at the top end of the filter cartridge body (1).

8. A low resistance pipeline filtering device according to any one of claims 1 to 7, characterized in that: The first water filter net (31), the second water filter net (32), the third water filter net (33) and the fourth water filter net (34) are hot-melt welded to the inner wall of the filter cartridge body (1).

Images