Modularized detachable filtering box body

Abstract

The utility model relates to the technical field of purification equipment, and particularly discloses a modularized detachable filtering box body which comprises a box body shell, a plurality of side holes are formed in one side of the box body shell, U-shaped frames aligned with the side holes are arranged at the upper end and the lower end in the box body shell, and sealing strips are arranged on two sides of the U-shaped frames. And primary-efficiency, activated carbon and high-efficiency filtering modules are respectively sleeved in the side holes. The primary filter module comprises an outer frame body, a primary filter element and a front end sealing plate; the sealing plate is fixed on the box body through a bolt; two sides of the top and the bottom of the outer frame body are provided with grooves. The device is provided with the primary filtering module, the activated carbon filtering module and the high-efficiency filtering module which are laterally mounted, and U-shaped frame sealing strips and module outer frame groove bodies are combined, so that the sealing performance is improved, and the modules are convenient to clean and replace. A pressure difference sensor and a PLC are additionally arranged to monitor the pressure difference of the primary module, a lamp is turned on to prompt replacement and cleaning when the pressure difference exceeds the standard, and a branch pipe self-checking sensor is additionally arranged to guarantee normal operation.

Description

Technical Field

[0001] This utility model relates to the field of purification equipment technology, specifically to a modular and detachable filter box. Background Technology

[0002] In many fields such as air purification, industrial ventilation, and cleanrooms, strict requirements are placed on air quality. Traditional filter housings mostly adopt a fixed structure, with filter modules tightly connected to the housing, making disassembly difficult. When a filter module needs cleaning or replacement, the entire housing often needs to be disassembled, which is cumbersome, time-consuming, and labor-intensive, and may also affect the normal operation of other components, increasing maintenance costs. At the same time, traditional filter housings lack effective means of monitoring the status of filter modules. The clogging status of the primary filter module cannot be detected in a timely manner, often leading to a decrease in filtration efficiency due to failure to replace or clean it promptly, affecting air purification effects, and potentially even damaging downstream equipment. To solve these problems, the development of a modular, detachable filter housing is essential. Utility Model Content

[0003] In view of the above-mentioned technical problems in related technologies, this utility model provides a modular and detachable filter box, which can solve the above problems.

[0004] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows:

[0005] A modular, detachable filter housing includes a housing shell with several side holes on one side. U-shaped frames aligned with the side holes are fixedly installed at the top and bottom of the housing shell. Sealing strips are integrally formed on both sides of the U-shaped frames. A pre-filter module, an activated carbon filter module, and a high-efficiency filter module are respectively housed within the side holes. The pre-filter module includes an outer frame, a pre-filter element fixed inside the outer frame, and a sealing plate fixed to the front end of the outer frame. The sealing plate is fixed to one side of the housing shell with bolts. Grooves that mate with the sealing strips are provided on both the top and bottom sides of the outer frame.

[0006] Furthermore, a differential pressure sensor and a PLC controller are fixed to the top of the housing with screws. The differential pressure sensor is electrically connected to the PLC controller. The differential pressure sensor includes an inlet detection end and an outlet detection end. The inlet detection end is connected to the air inlet side of the primary filter module through an inlet detection tube, and the outlet detection end is connected to the air outlet side of the primary filter module through an outlet detection tube.

[0007] Furthermore, a solenoid valve A is connected in series at the outlet detection pipe near the air outlet end of the primary filter module, and a branch pipe is connected to the outlet detection end of the outlet detection pipe. The branch pipe is connected to the air inlet side of the primary filter module and a solenoid valve B is connected in series in the branch pipe.

[0008] Furthermore, a solenoid valve A is connected in series at the outlet detection pipe near the air outlet end of the primary filter module, and a branch pipe is connected to the outlet detection end of the outlet detection pipe. The branch pipe is connected to the air inlet side of the primary filter module and a solenoid valve B is connected in series in the branch pipe.

[0009] Furthermore, an indicator light is fixedly installed on one side of the housing. The indicator light is electrically connected to the PLC controller via a wire and is located near the sealing plate of the primary filter module.

[0010] Furthermore, both the sealing strip and the groove have a semi-circular cross-sectional shape.

[0011] The beneficial effects of this utility model are as follows: By setting up a primary filter module, an activated carbon filter module and a high-efficiency filter module installed on the side, and combining the U-shaped frame sealing strip with the groove of the module outer frame, this device can not only improve the tightness of the fit between the filter module and the box, but also facilitate the cleaning or replacement of the independent filter modules.

[0012] By setting up a differential pressure sensor and a PLC controller, the indicator light on the primary filter module is activated when the differential pressure increases, prompting the user to replace and clean the primary filter module. A branch pipe is designed at the outlet detection end of the differential pressure sensor to self-check whether the differential pressure sensor is normal, thus enabling the differential pressure sensor to detect whether it is malfunctioning. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] The present invention will now be described in further detail with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the external structure of the modular, detachable filter housing;

[0016] Figure 2 This is a structural diagram of the modular, detachable filter housing without the protective cover.

[0017] Figure 3 This is a structural diagram of the primary filter module;

[0018] Figure 4 This is an assembly diagram of the U-shaped frame and the primary filter module.

[0019] In the picture:

[0020] 1. Housing shell; 101. Side opening; 2. Protective cover; 3. Indicator light; 4. Primary filter module; 401. Primary filter element; 402. Outer frame; 403. Sealing plate; 5. Activated carbon filter module; 6. High-efficiency filter module; 7. PLC controller; 8. Differential pressure sensor; 9. Outlet detection pipe; 10. Solenoid valve A; 11. Inlet detection pipe; 12. Branch pipe; 13. Solenoid valve B; 14. U-shaped frame; 1401. Sealing strip; 15. Tank. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0022] like Figure 1-4 As shown, this utility model discloses a modular detachable filter box, including a box shell 1. The box shell 1 has several side holes 101 on one side. The upper and lower ends of the box shell 1 are fixedly provided with U-shaped frames 14 aligned with the side holes 101. The two sides of the U-shaped frame 14 are integrally formed with sealing strips 1401. The several side holes 101 are respectively fitted with a primary filter module 4, an activated carbon filter module 5 and a high-efficiency filter module 6. The primary filter module 4 includes an outer frame 402, a primary filter element 401 fixed inside the outer frame 402 and a sealing plate 403 fixed to the front end of the outer frame 402. The sealing plate 403 is fixed to one side surface of the box shell 1 by bolts. The top and bottom sides of the outer frame 402 are provided with grooves 15 that cooperate with the sealing strips 1401.

[0023] A differential pressure sensor 8 and a PLC controller 7 are fixed to the top of the housing 1 with screws. The differential pressure sensor 8 is electrically connected to the PLC controller 7. The differential pressure sensor 8 includes an inlet detection end and an outlet detection end. The inlet detection end is connected to the air inlet side of the primary filter module 4 through an inlet detection pipe 11. The outlet detection end is connected to the air outlet side of the primary filter module 4 through an outlet detection pipe 9. A solenoid valve A10 is connected in series at the air outlet end of the outlet detection pipe 9 near the air outlet end of the primary filter module 4. A branch pipe 12 is connected to the air inlet side of the primary filter module 4 and a solenoid valve B13 is connected in series at the branch pipe 12.

[0024] Example 1: The primary filter module 4, activated carbon filter module 5, and high-efficiency filter module 6 have the same structure, including an outer frame 402, a sealing plate 403, and a groove 15. The only difference is the core filter element. The filter element of the primary filter module 4 is a non-woven fabric filter element, the filter element of the activated carbon filter module 5 is an activated carbon filter material, and the filter element of the high-efficiency filter module 6 is a HEPA filter element. The sealing strip 1401 of the U-shaped frame 14 is a rubber sealing strip. During the process of the filter module being embedded into the U-shaped frame 14, the sealing strip 1401 gradually fills into the groove 15 of the outer frame 402, improving the sealing between the filter module and the upper and lower ends of the inner wall of the outer shell 1. A sealing gasket is provided at the end of the outer frame 402 away from the sealing plate 403. When the sealing plate 403 is fixed to the surface of the outer shell 1, the sealing gasket at the end of the outer frame 402 away from the sealing plate 403 is tightly fitted to the inner wall of the outer shell 1.

[0025] The differential pressure sensor 8 includes an inlet detection end, an outlet detection end, and a data signal line. Both the inlet and outlet detection ends have anti-slip protrusions on their surfaces for easy fastening with the inlet and outlet detection pipes. The data signal line is connected to the PLC controller 7. The differential pressure sensor 8, PLC controller 7, and indicator light 3 form an automatic control system. The control program of the PLC controller 7 sets the differential pressure threshold for the indicator light 3 to start. The differential pressure sensor 8 monitors the differential pressure value between the inlet and outlet of the primary filter module 4. When the differential pressure value reaches the threshold set by the control program of the PLC controller 7... When the pressure sensor 8 is in operation, indicator light 3 will be activated to indicate that the differential pressure sensor 8 is in self-testing mode. Solenoid valve A10A, branch pipe 12, and solenoid valve B13 form the self-testing channel of differential pressure sensor 8. The opening and closing of solenoid valve A10A and solenoid valve B13 are controlled by the control module integrated on the PLC controller 7. During normal operation, solenoid valve A10A is open and solenoid valve B13 is closed. When self-testing differential pressure sensor 8, solenoid valve A10A needs to be closed and solenoid valve B13 needs to be open. At this time, the inlet and outlet terminals of differential pressure sensor 8 are short-circuited. Check whether the differential pressure value output by differential pressure sensor 8 returns to zero to detect whether it is faulty.

[0026] In the preferred technical solution, a protective cover 2 is fixed to the top of the housing 1 by screws. The differential pressure sensor 8 and the PLC controller 7 are both located inside the protective cover 2. The protective cover 2 is used to shield the differential pressure sensor 8 and the PLC controller 7, and plays a protective role. The protective cover 2 is made of thickened plastic shell.

[0027] In the preferred technical solution, an indicator light 3 is fixedly installed on one side surface of the housing 1. The indicator light 3 is electrically connected to the PLC controller 7 through a wire. The indicator light 3 is close to the sealing plate 403 of the primary filter module 4. The indicator light 3 is installed near the primary filter module 4 to facilitate indicating that the primary filter module 4 at this location needs to be cleaned or replaced.

[0028] In the preferred technical solution, the cross-sectional shape of both the sealing strip 1401 and the groove 15 is semi-circular, and the semi-circular shape fits tightly, improving the sealing performance.

[0029] In practical use, the outer casing 1 is equipped with a pre-filter module 4, an activated carbon filter module 5, and a high-efficiency filter module 6 from left to right. A fan is installed on the far right side inside the outer casing 1. The left side of the pre-filter module 4 is the air inlet, and the far right end of the outer casing 1 is the purified gas output. All electrical equipment in the device is powered by the power module, which is powered by a power cord. During normal operation, solenoid valve A10A is open and solenoid valve B13 is closed. The differential pressure sensor 8 monitors the differential pressure value between the inlet and outlet of the pre-filter module 4. When the differential pressure value reaches the threshold set by the control program of the PLC controller 7, the indicator light 3 will be activated to indicate this. When the differential pressure sensor 8 is self-tested, solenoid valve A10A needs to be closed and solenoid valve B13 needs to be opened. At this time, the inlet and outlet of the differential pressure sensor 8 are short-circuited. Check whether the differential pressure value output by the differential pressure sensor 8 returns to zero to detect whether it is faulty.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular, detachable filter housing, characterized in that, The enclosure includes a housing (1), on one side of which are several side holes (101). U-shaped frames (14) aligned with the side holes (101) are fixedly installed at the upper and lower ends of the housing (1). Sealing strips (1401) are integrally formed on both sides of the U-shaped frame (14). A primary filter module (4), an activated carbon filter module (5), and a high-efficiency filter module (6) are respectively fitted into the several side holes (101). The primary filter module (4) includes an outer frame (402), a primary filter element (401) fixed inside the outer frame (402), and a sealing plate (403) fixed at the front end of the outer frame (402). The sealing plate (403) is fixed to one side of the housing (1) by bolts. Grooves (15) that cooperate with the sealing strips (1401) are opened on both the top and bottom sides of the outer frame (402).

2. The modular detachable filter housing according to claim 1, characterized in that, The top of the housing (1) is fixed with a differential pressure sensor (8) and a PLC controller (7) by screws. The differential pressure sensor (8) is electrically connected to the PLC controller (7). The differential pressure sensor (8) includes an inlet detection end and an outlet detection end. The inlet detection end is connected to the air inlet side of the primary filter module (4) through an inlet detection pipe (11). The outlet detection end is connected to the air outlet side of the primary filter module (4) through an outlet detection pipe (9).

3. A modular, detachable filter housing according to claim 2, characterized in that, The outlet detection pipe (9) is connected in series with a solenoid valve A (10) at the outlet end of the primary filter module (4). A branch pipe (12) is connected to the outlet detection end of the outlet detection pipe (9). The branch pipe (12) is connected to the inlet side of the primary filter module (4) and a solenoid valve B (13) is connected in series with the branch pipe (12).

4. A modular, detachable filter housing according to claim 2, characterized in that, The top of the housing (1) is fixed with a protective cover (2) by screws, and the differential pressure sensor (8) and PLC controller (7) are both located inside the protective cover (2).

5. A modular, detachable filter housing according to claim 2, characterized in that, An indicator light (3) is fixedly installed on one side surface of the housing (1). The indicator light (3) is electrically connected to the PLC controller (7) through a wire. The indicator light (3) is close to the sealing plate (403) of the primary filter module (4).

6. A modular, detachable filter housing according to claim 1, characterized in that, The cross-sectional shape of the sealing strip (1401) and the groove (15) is semi-circular.

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