CN216788886U

CN216788886U - Multilayer filter device

Info

Publication number: CN216788886U
Application number: CN202220374086.4U
Authority: CN
Inventors: 邹建辉; 孙鹤权
Original assignee: Guangdong Tianheng Hydraulic Machinery Co ltd
Current assignee: Guangdong Tianheng Hydraulic Machinery Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-06-21
Anticipated expiration: 2032-02-22

Abstract

The utility model relates to a multilayer filtering device, which comprises a shell and a plurality of inner frameworks arranged in the shell, wherein the inner frameworks are sequentially sleeved in the shell, filter layers are arranged on the side surfaces of the inner frameworks, the pore sizes of the filter layers are gradually reduced along with the flow direction of hydraulic oil, sealing layers for preventing unfiltered liquid from leaking are arranged on the surfaces, contacting with the shell, of the inner frameworks, a first oil inlet and outlet is formed in one end of the shell, the first oil inlet and outlet is positioned in a cavity of the innermost inner framework, and a second oil inlet and outlet is also formed in the top surface of the shell.

Description

Multilayer filter device

Technical Field

The utility model relates to the technical field of liquid filtration and purification, in particular to a multilayer filter device.

Background

The functions of energy transfer, abrasion resistance, lubrication, corrosion resistance, rust resistance, cooling and the like of hydraulic oil cannot be kept away in the operation of equipment, but in the process of using the hydraulic oil, the hydraulic oil is inevitably polluted, for example, the hydraulic oil is polluted by particle dust and abrasion dust particles in the air, when the hydraulic oil is polluted, the hydraulic oil can be rapidly oxidized and deteriorated to generate acid substances and corrode a metal contact surface, the lubrication, cooling and flowing properties of the hydraulic oil are reduced to cause fatigue acceleration of a metal surface and the like, and finally important elements and equipment are damaged, so that impurities in the hydraulic oil need to be filtered in the long-term use process of the hydraulic oil to ensure the quality of the hydraulic oil, the hydraulic oil is prevented from losing the effect and the equipment is damaged, in the existing filtering device, each filter element can only filter particles within a certain size range, and if a small-aperture filter material is directly used, there will be a large amount of particles stifled on the filter media, may cause filter equipment's jam, lead to filter equipment's life to shorten, so under general condition, can use a plurality of filter equipment, follow the colating, well strain, the essence is strained, the process of hyperfine filtration, but uses a plurality of filter equipment can occupy a large amount of spaces, need maintain a plurality of filter equipment simultaneously, lead to the cost to improve, consequently provides one kind can once only realize multiple layer filtering's device.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a multi-layer filtering device which can realize multi-filtering at one time and is convenient to maintain.

The technical purpose of the utility model is realized by the following technical scheme:

a multi-layer filtering device comprises a shell and a plurality of inner frameworks arranged in the shell;

it is a plurality of the inner frame cup joints in proper order in the casing, and is a plurality of the side of inner frame all is equipped with the filtering layer, and is a plurality of the aperture size of filtering layer is degressive along with the flow direction of hydraulic oil.

In one embodiment, a sealing layer for preventing the leakage of the unfiltered liquid is arranged between the inner frame and the shell.

In one embodiment, one end of the shell is provided with a first oil inlet and outlet, the first oil inlet and outlet is communicated with the cavity of the innermost inner framework, and the top surface of the shell is also provided with a second oil inlet and outlet.

In one embodiment, when the hydraulic oil flows into the housing from the second oil inlet/outlet, the filter layer aperture closer to the first oil inlet/outlet is smaller, and when the hydraulic oil flows into the housing from the first oil inlet/outlet, the filter layer aperture closer to the second oil inlet/outlet is smaller.

In one embodiment, the blockage alarm device further comprises a blockage alarm module, the blockage alarm module comprises a differential pressure switch, a buzzer, a first pressure sensor and a second pressure sensor, the first pressure sensor is arranged in the second oil inlet and outlet, the second pressure sensor is arranged in the first oil inlet and outlet, the first pressure sensor and the second pressure sensor are both electrically connected with the differential pressure switch, and the buzzer is electrically connected with the differential pressure switch.

In one embodiment, the blockage warning module further comprises a display screen, and the display screen is electrically connected with the differential pressure switch, the buzzer, the first pressure sensor and the second pressure sensor.

In one embodiment, the shell and the inner frame are both made of corrosion-resistant materials.

In conclusion, the utility model has the following beneficial effects:

compared with the existing filtering device, the filtering device can realize the filtering from coarse filtering to fine filtering at one time, optimizes the structure of the filtering device, reduces the space occupation, and can replace the filtering layers with different apertures by a user according to the requirements.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a cartridge construction of the present invention;

fig. 3 is a schematic structural diagram of the installation of a jam alarm module of the present invention.

In the figure: 1-a shell; 11-a second oil inlet and outlet; 12-a first oil inlet and outlet; 2-inner skeleton; 21-a filtering layer; 3-sealing layer; 4-differential pressure switch; 5-a buzzer; 6-a first pressure sensor; 7-a second pressure sensor; 8-display screen.

Detailed Description

The utility model is described in detail below with reference to the figures and examples.

It should be noted that all the directional terms such as "upper" and "lower" referred to herein are used with respect to the view of the drawings, and are only for convenience of description, and should not be construed as limiting the technical solution.

As shown in fig. 1 to 3, a multi-layered filter device includes a housing 1 and a plurality of endoskeletons 2 disposed inside the housing 1;

it is a plurality of inner frame 2 cup joints in proper order in casing 1, and is a plurality of the side of inner frame 2 all is equipped with filtering layer 21, and is a plurality of filtering layer 21's aperture size reduces progressively along with the flow direction of hydraulic oil. The shell 1 of the utility model is a cylinder, a plurality of layers of inner frameworks 2 are arranged in the shell 1, each layer of inner framework 2 is cylindrical, the inner frameworks 2 are sequentially sleeved, the inner frameworks 2 are provided with filter layers 21, cavities are arranged among the filter layers 21, hydraulic oil can pass through the cavities and filter through the filter layers 21, the filtering layer 21 is detachably connected with the inner framework 2, the filtering layer 21 with proper precision can be replaced according to the actual use requirement, the filtering follows the principle from coarse filtering to fine filtering, therefore, as the hydraulic oil flows into the present invention and flows out of the present invention, the pore size of the filter layer 21 is gradually reduced along with the flowing direction of the hydraulic oil, the smaller the pore size of the filter layer 21, the higher the precision, the hydraulic oil passes through the plurality of filter layers 21 with different pore sizes, the aperture of the filtering layer 21 changes from large to small, the filtering precision also changes from low to high, and the coarse filtering to the fine filtering are realized.

And a sealing layer 3 for preventing the leakage of the unfiltered liquid is arranged between the inner frame 2 and the shell 1. The sealing layer 3 is arranged on the surface of the inner framework 2 contacting with the shell 1, the leakage of hydraulic oil which is not filtered yet from the surface of the inner framework 2 contacting with the shell 1 is avoided, and the sealing layer 3 can be a sealing glue or a sealing ring.

One end of the shell 1 is provided with a first oil inlet/outlet 12, the first oil inlet/outlet 12 is communicated with the center of the innermost inner framework 2, and the top surface of the shell 1 is also provided with a second oil inlet/outlet 11. The filter element of the utility model is composed of a plurality of filter layers 21, and because the inner frame 2 is cylindrical, the filter layers 21 are also cylindrical, so the first oil inlet/outlet port 12 is communicated with the central position of the innermost filter layer 21, the second oil inlet/outlet port 11 is arranged on the top surface of the shell 1, in the practical use, the positions of the second oil inlet/outlet port 11 and the first oil inlet/outlet port 12 can be exchanged, and because the filtering precision of the filter layers 21 can be manually adjusted, the exchange of the second oil inlet/outlet port 11 and the first oil inlet/outlet port 12 can not be influenced.

When the hydraulic oil flows into the housing from the second oil inlet/outlet port 11, the pore size of the filter layer 21 closer to the first oil inlet/outlet port 12 is smaller, and when the hydraulic oil flows into the housing from the first oil inlet/outlet port 12, the pore size of the filter layer closer to the second oil inlet/outlet port 11 is smaller. The filter element of the utility model is composed of a plurality of filter layers 21 and follows the principle from coarse filtration to fine filtration, so the aperture of the filter layer 21 closest to the inflow direction of the hydraulic oil is the largest, the aperture of the filter layer 21 closer to the outflow direction of the hydraulic oil is the smaller, and the smaller the aperture of the filter layer 21 is, the higher the filtration precision is, a user can change the second oil inlet/outlet 11 or the first oil inlet/outlet 12 as an oil inlet according to the actual use condition, and the arrangement sequence of the filter layers 21 is adjusted according to the position of the oil inlet 11, so that the precision of the filter layer 21 can meet the requirements of coarse filtration, medium filtration, fine filtration and ultra-fine filtration.

The multilayer filtering device further comprises a blocking alarm module, the blocking alarm module comprises a differential pressure switch 4, a buzzer 5, a first pressure sensor 6 and a second pressure sensor 7, the first pressure sensor 6 is arranged in a second oil inlet and outlet 11, the second pressure sensor 7 is arranged in a first oil inlet and outlet 12, the first pressure sensor 6 and the second pressure sensor 7 are electrically connected with the differential pressure switch 4, and the buzzer 5 is electrically connected with the differential pressure switch 4. After long-term use, the filter layer 21 may be blocked by impurities, so that the liquid flows slowly, the filtering effect is reduced, therefore, the filter layer 21 should be replaced as soon as possible after the blockage occurs, and the filtering apparatus needs to be maintained regularly, but when the filter layer 21 is blocked, the situation that the filter layer 21 is likely to occur suddenly is avoided, in order to avoid the sudden blockage during the use, which is not found by people, the first pressure sensor 6 disposed at the second oil inlet/outlet port 11 is used for monitoring the hydraulic oil pressure of the hydraulic oil entering the apparatus, the second pressure sensor 7 disposed at the first oil inlet/outlet port 12 is used for monitoring the hydraulic oil pressure of the hydraulic oil flowing out after the filtering of the apparatus is completed, the pressure difference between the second oil inlet/outlet port 11 and the first oil inlet/outlet port 12 is not too large under normal conditions, and when the filter layer 21 is blocked by impurities, the pressure of the first oil inlet/outlet port 12 and the pressure of the second oil inlet/outlet port 11 generate a large difference, when the difference value reaches the set value of the pressure difference switch 4, the pressure difference switch 4 will send a signal to the buzzer 5, so as to achieve the effect of prompting the user that the filter layer 21 is blocked.

The blockage alarm module further comprises a display screen 8, and the display screen 8 is electrically connected with the differential pressure switch 4, the buzzer 5, the first pressure sensor 6 and the second pressure sensor 7. The display screen 8 is used for showing the state of current device, and shows the pressure value that first pressure sensor 6 and second pressure sensor 7 monitoring gained in real time, and in the use, the user can be according to the pressure numerical analysis on the display screen 8 whether need change filtering layer 21 in advance, also can judge whether current bee calling organ 5 reports to the police according to the pressure value and whether be the false positive.

The shell 1 and the inner framework 2 are both made of corrosion-resistant materials. The shell 1 and the inner framework 2 are both made of corrosion-resistant materials, although the corrosion of hydraulic oil is low, the shell still has certain corrosion and contains other impurities, the service life can be effectively prolonged by using the corrosion-resistant materials, and the situation that the shell is damaged and needs to be replaced due to serious corrosion in a short period is avoided.

The use process of the utility model;

the hydraulic oil filter is installed in a filter circulation system, hydraulic oil to be filtered flows into the device from the second oil inlet/outlet 11 and slowly fills the interior of the device, the next filtering is performed only after the hydraulic oil to be filtered passes through a filter layer 21, and the sealing layer 3 is arranged between the inner framework 2 and the shell 1 in each layer, so that the unfiltered hydraulic oil cannot leak from gaps, and the hydraulic oil can reach the position of the first oil inlet/outlet 12 and flow out of the first oil inlet/outlet 12 after being subjected to coarse filtering, intermediate filtering, fine filtering and ultra-fine filtering.

The utility model arranges a first pressure sensor 6 at a second oil inlet and outlet 11, a second pressure sensor 7 at a first oil inlet and outlet 12, and the first pressure sensor 6 and the second pressure sensor 7 are both electrically connected with the differential pressure switch 4, a set value is arranged in the differential pressure switch 4, when the difference between the pressure values detected by the first pressure sensor 6 and the second pressure sensor 7 is greater than the set value of the differential pressure switch 4, the pressure difference switch 4 will send a signal to the buzzer 5, the alarm sound of the buzzer 5 plays a role of informing the user to replace the filter layer 21, and the data monitored by the first pressure sensor 6 and the second pressure sensor 7 will be reflected on the display screen 8, in the using process, a user can judge that the filter layer 21 does not need to be replaced in advance according to the actual pressure value, or judge whether the alarm of the buzzer 5 is misjudgment obtained by a program according to the pressure difference.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. A multi-layer filtering device is characterized by comprising a shell (1) and a plurality of inner frameworks (2) arranged in the shell (1);

it is a plurality of inner frame (2) cup joints in proper order in casing (1), and is a plurality of the side of inner frame (2) all is equipped with filtering layer (21), and is a plurality of the aperture size of filtering layer (21) is degressive along with the flow direction of hydraulic oil.

2. A multiple layer filter device as claimed in claim 1, characterised in that a sealing layer (3) is provided between the inner frame (2) and the housing (1) for preventing leakage of unfiltered liquid.

3. The multi-layer filtering device as claimed in claim 1, wherein one end of the housing (1) is provided with a first oil inlet/outlet (12), the first oil inlet/outlet (12) is communicated with the cavity of the innermost inner frame (2), and the top surface of the housing (1) is further provided with a second oil inlet/outlet (11).

4. A multilayer filter device as set forth in claim 3, wherein the filter layer (21) closer to the first oil inlet/outlet port (12) has smaller pore size as the hydraulic oil flows into the housing from the second oil inlet/outlet port (11); when the hydraulic oil flows into the shell from the first oil inlet/outlet (12), the pore diameter of the filter layer closer to the second oil inlet/outlet (11) is smaller.

5. The multi-layer filtering device as claimed in claim 3, further comprising a blocking alarm module, wherein the blocking alarm module comprises a differential pressure switch (4), a buzzer (5), a first pressure sensor (6) and a second pressure sensor (7), the first pressure sensor (6) is disposed in the second oil inlet/outlet (11), the second pressure sensor (7) is disposed in the first oil inlet/outlet (12), the first pressure sensor (6) and the second pressure sensor (7) are both electrically connected to the differential pressure switch (4), and the buzzer (5) is electrically connected to the differential pressure switch (4).

6. A multi-layer filtering device according to claim 5, wherein the clogging alarm module further comprises a display screen (8), the display screen (8) being electrically connected to the differential pressure switch (4), the buzzer (5), the first pressure sensor (6) and the second pressure sensor (7).

7. A multi-layered filter assembly as claimed in claim 1, wherein the housing (1) and the inner frame (2) are of corrosion resistant material.