Low-pressure filter

Abstract

The low-pressure filter comprises a cloth bag filter assembly, a three-way connector and a vortex separator, an end cover is arranged at the upper end of the cloth bag filter assembly, a pressure sensor is fixedly arranged at the upper end of the end cover, and right-angle connectors are fixedly installed above the vortex separator and the end cover at the upper end of the cloth bag filter assembly. A first straight-through connector and a second straight-through connector are arranged on the butt joint faces of the adjacent right-angle connectors respectively, a third straight-through connector is further arranged on the outer side of the vortex separator, a fourth straight-through connector is fixedly arranged on the outer side of the three-way connector, the third straight-through connector is connected with the fourth straight-through connector in a sealed mode, and a shock-proof pressure gauge is further arranged at the upper end of the three-way connector. A fifth straight joint is arranged at the lower end of the three-way joint, and a ball valve is connected to the bottom of the fifth straight joint. The low-pressure filter assembly adopts the three-way joint, the upper part and the lower part are connected with the pressure gauge and the ball valve, the overall space is reduced, the appearance is optimized, and the cloth bag filter assembly part adopts the buckle, so that the cloth bag is convenient to replace.

Description

Technical Field

[0001] The utility model relates to the field of central water outlet filtering system, and more specifically, to a low-pressure filter. Background Art

[0002] At present, a Chinese patent with patent number CN212600621U discloses a multi-pump group high-pressure machine tool cooling pump filtration system, including a machine tool spindle, a machine tool water tank, a coolant filtration system, a debris collection box, a water tank, and a machine tool high-pressure fluid supply system. The machine tool high-pressure fluid supply system is provided with at least two groups, each of which is connected to a machine tool spindle, and the machine tool spindle is connected to the machine tool water tank. The cutting fluid in the machine tool water tank is separated and filtered by a vortex separator and a bag filter, and the debris is discharged into the debris collection box, and the purified cutting fluid enters the water tank; the cutting fluid in the water tank is connected to the corresponding machine tool spindle through at least two groups of machine tool high-pressure fluid supply systems; the power supply and sensor of each device in the system are connected to the central control system.

[0003] In the existing filtration system, the vortex separator is connected to the pressure gauge and the ball valve using a straight-through connector. Due to the lack of vertical accuracy of the right-angle connector at the front end, the entire system will be crooked after installation. The excessive length of the pressure gauge and the ball valve will be more obvious, and if a straight-through connector is used, it will take up more space. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The purpose of the utility model is to provide a low-pressure filter to solve the related problems raised in the above background technology.

[0006] 2. Technical solution

[0007] A low-pressure filter comprises a bag filter assembly, a three-way joint and a vortex separator, wherein an end cover is arranged on the upper end of the bag filter assembly, a pressure sensor is fixedly arranged on the upper end of the end cover, and right-angle joints are fixedly installed above the end covers of the vortex separator and the upper end of the bag filter assembly, a first straight joint and a second straight joint are respectively arranged on the butt joint surfaces of adjacent right-angle joints, and the first straight joint and the second straight joint are sealedly connected, a third straight joint is also arranged on the outer side of the vortex separator, a fourth straight joint is fixedly arranged on the outer side of the three-way joint, the third straight joint and the fourth straight joint are sealedly connected, a seismic-resistant pressure gauge is also arranged on the upper end of the three-way joint, a fifth straight joint is arranged on the lower end of the three-way joint, and a ball valve is connected to the bottom of the fifth straight joint.

[0008] Preferably, a first transverse bracket is fixed to the outside of the vortex separator, and a second longitudinal bracket is fixedly connected to the outside of the first bracket, and the second bracket is connected to the outside of the bag filter assembly.

[0009] Preferably, the end cover is detachably fixedly connected to the bag filter assembly via a buckle.

[0010] Preferably, the bag filter assembly and the outside, the second bracket, and the vortex separator and the first bracket are all detachably fixedly connected by hexagon socket head screws.

[0011] Preferably, the seismic-resistant pressure gauge is fixed to the upper end of the three-way joint by a core seal.

[0012] Preferably, an elbow tower is provided at the bottom of the vortex separator.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the utility model are: the low-pressure filter assembly of the utility model uses a three-way joint, which is connected to a pressure gauge and a ball valve at the top and bottom, reducing the overall space and optimizing the appearance. The bag filter assembly is installed on the end cover and connected using a snap-on connection, which is convenient for replacing the bag and significantly improves the practical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model.

[0016] Explanation of numbers in the figure: 1-bag filter assembly, 2-buckle, 3-pressure sensor, 4-right-angle joint, 5-first straight joint, 6-second straight joint, 7-third straight joint, 8-fourth straight joint, 9-seismic pressure gauge, 10-bushing, 11-tee joint, 12-fifth straight joint, 13-ball valve, 14-first bracket, 15-hexagon socket head screw, 16-vortex separator, 17-elbow pagoda, 18-second bracket. DETAILED DESCRIPTION

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0018] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0019] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] See also Figure 1 A low-pressure filter comprises a bag filter assembly 1, a three-way joint 11 and a vortex separator 16. An end cover is arranged at the upper end of the bag filter assembly 1, a pressure sensor 3 is fixedly arranged at the upper end of the end cover, and a right-angle joint 4 is fixedly installed above the end cover of the vortex separator 16 and the upper end of the bag filter assembly 1, and the adjacent right-angle joints 4 are respectively provided with a first straight joint 5 and a second straight joint 6 on the butt joint surface, and the first straight joint 5 and the second straight joint 6 are sealed and connected, a third straight joint 7 is also arranged on the outer side of the vortex separator 16, a fourth straight joint 8 is fixedly arranged on the outer side of the three-way joint 11, and the third straight joint 7 is sealed and connected with the fourth straight joint 8, and a seismic pressure-resistant pressure sensor 3 is also arranged on the upper end of the three-way joint 11. Table 9, a fifth straight joint 12 is provided at the lower end of the three-way joint 11, and a ball valve 13 is connected to the bottom of the fifth straight joint 12, a first horizontal bracket 14 is fixed to the outside of the vortex separator 16, and a second longitudinal bracket 18 is fixedly connected to the outside of the first bracket 14, and the second bracket 18 is connected to the outside of the bag filter assembly 1, the end cover is detachably fixedly connected to the bag filter assembly 1 through the buckle 2, the bag filter assembly 1 and the outside (the water tank of the machine tool), the second bracket 18, and the vortex separator 16 and the first bracket 14 are all detachably fixedly connected through the hexagon socket head screw 15, the seismic-resistant pressure gauge 9 is sealed and fixed to the upper end of the three-way joint 11 through the bushing 10, and an elbow pagoda 17 is provided at the bottom of the vortex separator 16.

[0021] Based on the above structure, the assembly of the machine tool cooling pump filtration system is completed, and on this basis, the impurity-containing cutting fluid of the machine tool enters the vortex separator 16 from the machine tool, and the ball valve 13 controls the flow pressure to control the pressure at 0.1-0.3Mbar. The shock-resistant pressure gauge 9 is used to observe the water inlet pressure. After entering the vortex separator 16, the first coarse filtration is carried out, and the filtration efficiency is about 90%. This part of impurities returns to the machine tool sewage tank through the sewage outlet. The clean water after coarse filtration enters the bag filter assembly 1. The filtration accuracy of the bag filter assembly 1 is 25um. After the filtration is completed, it enters the system water tank; when the pressure sensor 3 alarms, the bag needs to be replaced. Open the buckle 2, the end cover and the connected structure can be disassembled, and the bag can be quickly replaced.

[0022] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A low-pressure filter, comprising a bag filter assembly (1), a three-way connector (11) and a vortex separator (16), characterized in that: The bag filter assembly (1) is provided with an end cover at the upper end, a pressure sensor (3) is fixedly provided at the upper end of the end cover, and right-angle joints (4) are fixedly installed above the end covers of the vortex separator (16) and the upper end of the bag filter assembly (1), and the butt joints of adjacent right-angle joints (4) are respectively provided with a first straight joint (5) and a second straight joint (6), and the first straight joint (5) and the second straight joint (6) are sealedly connected, a third straight joint (7) is also provided on the outer side of the vortex separator (16), a fourth straight joint (8) is fixedly provided on the outer side of the three-way joint (11), and the third straight joint (7) is sealedly connected to the fourth straight joint (8), a seismic-resistant pressure gauge (9) is also provided on the upper end of the three-way joint (11), a fifth straight joint (12) is provided on the lower end of the three-way joint (11), and a ball valve (13) is connected to the bottom of the fifth straight joint (12).

2. A low-pressure filter according to claim 1, characterized in that: A first transverse bracket (14) is fixed to the outside of the vortex separator (16), and a second longitudinal bracket (18) is fixedly connected to the outside of the first bracket (14), and the second bracket (18) is connected to the outside of the bag filter assembly (1).

3. A low-pressure filter according to claim 2, characterized in that: The end cover is detachably fixedly connected to the bag filter assembly (1) via a buckle (2).

4. A low-pressure filter according to claim 3, characterized in that: The bag filter assembly (1) and the outside, the second bracket (18), and the vortex separator (16) and the first bracket (14) are all detachably fixedly connected via hexagon socket head screws (15).

5. A low-pressure filter according to claim 4, characterized in that: The shockproof pressure gauge (9) and the upper end of the three-way joint (11) are sealed and fixed via a bushing (10).

6. A low-pressure filter according to claim 5, characterized in that: An elbow tower (17) is arranged at the bottom of the vortex separator (16).

Images