RU193890U1 - Air purifier - Google Patents

Abstract

The proposed utility model relates to devices for the implementation of technological processes for the separation of various materials, in particular, to a device for air purification intended for use in technological processes of industrial and sanitary cleaning of gases from aerosol particles, mainly for cleaning aspiration air from aerosol particles of bathtubs electrochemical coatings and etching. The device comprises a housing with an output and receiving chambers, with drain pipes connected to a water seal, with a hatch, and a support partition. The device also contains a filter cartridge installed in the housing with support on the support partition and fixed with self-locking clamps made on the housing. At the same time, the filter cartridge contains a support frame with profiled support lodges on which a filter element made of several layers of fibrous filter material in the form of vertical corrugations is fixed using profiled pressure strips. Stiffening rods are integrated into the filter material. The device also contains a flushing system and gauges mounted on the housing. The technical result from the use of the proposed utility model is to increase reliability and simplify maintenance. 4 s.p. f-ly, 5 ill.

Description

The proposed utility model relates to devices for the implementation of technological processes for the separation of various materials, in particular, to a device for air purification intended for use in technological processes of industrial and sanitary cleaning of gases from aerosol particles, mainly for cleaning aspiration air from aerosol particles of bathtubs electrochemical coatings and etching.

Known fibrous pleated filter (SU 1725981 A1, class B01D46 / 52, publ. 04/15/1992), containing a rectangular housing with a filter partition placed in the grooves, made in the form of an equally pleated frame and an adjacent clamping lattice clamped between them fibrous filter material. The frame and the clamping lattice are made in the form of compression springs, which are equipped with self-jamming detachable joints located at the tops of the corrugations and are fastened together due to elastic forces. The self-jamming detachable connection is made in the form of a groove with a slotted slot, into which a latch made in the form of a rod is inserted, and the geometry of the groove, the width of the slot and the diameter of the rod makes it possible, due to the elastic forces of the rod, to push the filter material through the slot and wedge it inside the groove.

Known fiber pleated filter (RU 2456057 C1, class B01D46 / 52, published on July 20, 2012), comprising a housing with a filter cartridge located in a groove and drain pipes. The filter cartridge is made of corrugated frame and clamping lattice, between which a fibrous filter material is installed. At the same time, the filter cartridge is assembled in the form of a spring and is equipped with self-jamming detachable joints made at the tops of the corrugations. Fenders, installed before and after the filter cartridge, are installed in the housing. The housing is equipped with a water lock, and drain pipes are installed on the bottom of the housing between the groove and the baffle plates and are connected to a water lock provided with a drain fitting.

A well-known fibrous filter (RU 2465037 C1, class B01D46 / 52, B01D47 / 06, published October 27, 2012), comprising a housing with a cassette with a filter wall installed through the mounting hatch, made in the form of vertically arranged folds of filter material, superimposed and fixed on the frame, drain pipes located before and after the cartridge with a filter partition. The drain pipes from the cartridge with a filter baffle are deepened under the liquid level in the sump tank, located under the body, where they form a water seal, for which the sump tank is equipped with a fitting.

The disadvantage of these devices is the complexity of their maintenance due to the difficulty of removing the filter cartridge from the guide grooves, which requires stopping the entire production line for an indefinite, often long time, lack of devices for washing the filter cartridge during operation of the production line, lack of devices for evaluation the degree of contamination of the filter, the inability to remove the water seal for washing and removing accumulated sediment or a washing system from it and tions of accumulated sediment in the process.

Known filters with filter elements made of zigzag folded filter material with separators between corrugations made of corrugated aluminum sheet (RU 2192914 C2, class B01D39 / 16, G21F9 / 02, published on November 20, 2002 and RU 2192916 C2, class. B01D46 / 52, published on November 20, 2002).

The disadvantage of these devices is the inability to regenerate the filter material - only its replacement, at a complete stop of the production process, for an indefinite period. Although these devices are declared as filters, in the absence of attachment points to the ventilation system, devices for monitoring the state of the filter element or its inspection, they can only be considered as a separate component of the filter as a whole.

Known filter element in the form of a plate, which contains a filter material folded in a zigzag fashion with a sealing strip covering the longitudinal edges of the filter element, and an end strip located at the end of the filter element (DE 19730817 A1, class B01D46 / 00, B01D46 / 10, B01D46 / 52, B60H3 / 06, published on January 21, 1999). The end strip is provided with lateral connecting sections that partially overlap the sealing tape.

From US Pat. No. 4,342,570, filter elements are known comprising corrugated fibrous plates bolted to support panels.

These filtering elements cannot be used as complete, independent devices for air purification. In addition, the scope of their application does not meet the operating conditions of the claimed device.

The closest in technical essence and the achieved result to the proposed utility model is a folded fibrous filter protected by patent RU 2456057 C1, class. B01D46 / 52, publ. 07/20/2012, adopted for the closest analogue (prototype).

The prototype device comprises a rectangular housing with a filter cartridge located in a groove and drain pipes. The filter cartridge is made of corrugated lattice frame and clamping lattice, between which a fibrous filter material is installed. At the same time, the filter cartridge is assembled in the form of a spring and is equipped with self-jamming detachable joints made at the tops of the corrugations. In the groove at the bottom of the housing, drain triangular slots are made. Fenders, installed before and after the filter cartridge, are installed in the housing. In this case, the partition located after the filter cartridge is equipped with an inclined groove, the lower end of which has a gap between it and the side wall of the housing. The housing is equipped with a water lock, and drain pipes are installed on the bottom of the housing between the groove and the baffle plates and are connected to a water lock provided with a drain fitting.

The advantages and common features of the prototype device with the proposed utility model is the effective cleaning of aspiration air from electrolytes and the reduction of the corrosion effect of trapped electrolytes on the ducts and fan by reducing their secondary ablation. This is achieved through the use of a filter cartridge made of fibrous material with vertical folds, as well as by draining the flowing liquid from the lower layers of the fibrous material into the drain pipes and then through the water seal and the nozzle outward for disposal and processing.

The disadvantages of the device of the prototype are:

- firstly, the difficulty of removing the filter cartridge during maintenance;

- secondly, the lack of devices for washing the filter cartridge;

- thirdly, the lack of devices to assess the degree of contamination of the filter;

- fourthly, the inability to flush and remove sediment accumulated during operation from the water seal.

The objective of the utility model is the improvement of the device for air purification.

The technical result from the use of the proposed utility model is to increase reliability and simplify maintenance.

This is achieved by the fact that the device for air purification comprises a housing with a receiving and output chambers, with drain pipes connected to a water lock, with a hatch, with a support baffle, a filter cartridge installed in the case with support on the support baffle and fixed with self-locking clamps, made on a housing containing a support frame with profiled support lodges, on which, with the help of profiled clamping strips, a filter element made of several layers of corrugated o fibrous filter material in which stiffening rods, a washing system and vacuum gauges are installed on the housing; the water lock is equipped with an overflow fitting, a drain plug and a washing fluid supply fitting; a seal is made between the support partition and the filter cartridge; stiffening rods are made of stainless steel, titanium or a polymeric material; additionally contains guides welded from the inside to the side walls of the housing along which the filter cartridge is mounted on the seat.

In FIG. 1 shows a general view of an air purifier.

In FIG. 2 is a sectional side view of an air purifier.

In FIG. 3 shows a section in a node A of an air purifier.

In FIG. 4 is a top view sectional view of an air purifier.

In FIG. 5 shows a filter cartridge of an air purifier.

Structurally, the fiber filter of FIG. 1-5 contains:

1 - housing;

2 - receiving chamber;

3 - output chamber;

4 - drain pipes;

5 - water seal;

6 - overflow fitting;

7 - drain plug water seal;

8 - nozzle for supplying washing liquid to the hydraulic lock;

9 - hatch;

10 - a tight cover;

11 - supporting partition;

12 - filter cartridge;

13 - self-locking clamps;

14 - consolidation;

15 - the supporting frame of the filter cartridge;

16 - profiled support lodges;

17 - profiled pressure strips;

18 - filter element;

19 - stiffening rods;

20 - flushing system;

21 - vacuum gauges;

22 - guides.

The housing 1 contains a receiving 2 and output 3 chambers connected to the flues. The housing 1 is made with drain pipes 4. The drain pipes 4 are connected to a water lock 5, equipped with an overflow fitting 6, a drain plug 7, a nozzle for supplying flushing fluid 8. On top of the housing 1 is a hatch 9 provided with a sealed cover 10. In the housing 1, a support the partition 11, which is a plate with a square hole corresponding to the projection of the bore of the filter cartridge 12, located across the housing 1 and welded to it along the outer contour. The filter cartridge 12 is mounted on the bottom of the housing 1 with support on the support partition 11 and is fixed with self-locking clamps 13 made on the housing 1. At the same time, a seal 14 is provided between the support partition 11 and the filter cartridge 12, which is mounted on the support frame 15 of the filter cartridge 12.

The filter cartridge 12 includes a support frame 15 with profiled support lodges 16, on which, with the help of profiled pressure strips 17, a filter element 18 is fixed.

The filter element 18 is made of several layers of fibrous corrugated filter material, for example, from a needle-punched fabric or a fabric based on polyester fibers, in which stiffening rods 19 are integrated.

The stiffening rods 19 are made of stainless steel, titanium, or a polymeric material.

The flushing system 20 is a tube into which the flushing fluid is injected, with hydraulic nozzles supplying the flushing fluid to the filter element 18 to flush away any contaminants formed therefrom.

Vacuum gauges 21 are installed on the housing 1.

The guides 22 are welded from the inside to the side walls of the housing 1.

The assembly of the proposed utility model is as follows.

A filter cartridge 12 is inserted into the housing 1 through the open hatch 9, which along the guides 22 welded to the side walls of the housing 1 is installed with the lower edge exactly on the seat. After that, the upper edge of the filter cartridge 12 is fed forward towards the outlet chamber 3, so that it is fixed using self-locking clamps 13. Then the hatch 9 is closed by a cover 10 and the filter is ready for operation.

The extraction of the filter cartridge 12 is carried out in the reverse order: the upper edge of the filter cartridge 12 is disengaged from the self-jamming clamps 13, after which it is taken back towards the receiving chamber 2. At the same time, the filter cartridge 12 is torn off from the support wall 11 of the housing 1. Next, the filter cartridge the cartridge 12 is removed through the hatch 9 of the filter housing 1.

In the filter element 18 between the individual layers of the fibrous filter material, stiffening rods 19 are integrated. The distance between them and the materials from which they can be made can be different, depending on the performance of the filter. For example, for a filter with a capacity of 10–20 thousand m ³ / h, the rods are placed at a distance of 19 mm and are made of chemically resistant materials - stainless steel, titanium, etc. The diameters of the rods are 3-4 mm. This is due to significant dimensions and loads, both on the rods 19 themselves, and on the filter element 18. When using polymeric materials, an increase in their diameter will be required, which will complicate the sealing of the filter cartridge. At lower productivity, for example, up to 5 thousand m ³ / h, the rods can be made, for example, of polymer rods. The fixing of the stiffening rods 19 in the filter element 18, as well as the bonding of the layers of filter material between them, is carried out by the method of flashing or gluing.

The proposed utility model works as follows.

Suspended impurities from the working areas of industrial premises, including aerosol particles of electrolyte contained in the suction air from galvanic and pickling baths, are collected by the filter cartridge 12 on the fibers of the filter element 18. Then, the liquid captured on the fibers merges into droplets and partially flows to the bottom of the housing 1 and partly by air flow is pressed onto the surface of the filter element 18 external to the surface of the gas being cleaned and also flows into the lower part of the housing 1. In this case, the stiffening rods 19 in the filter element 18 p prevent the deformation and destruction of the filter material and its suction in the duct. Due to the elevation of the filter element 18 above the bottom of the housing 1, the effect of bubbling and secondary entrainment of part of the suspended impurities by the stream of purified gases into the gas duct after the filter, the so-called "slip", is reduced. Over time, suspended impurities contained in the suction air accumulate in the fibers of the filter element 18, which leads to contamination and an increase in the hydraulic resistance of the filter cassette 12. The conclusion about the contamination of the filter cassette 12 and the need for its washing operation is made by the difference in the readings of the gauges 21 measuring pressure before and after the filter cartridge 12. The washing operation is carried out upon reaching the filter cartridge 12 hydraulic resistance in the range of 200-500 PA using the system rinsing 20 with water or solvent on both sides of the filter cartridge 12. Rinsing water through the rinsing system 20 is supplied under pressure to the filter element 18. Moreover, the pressure from the side of the outlet chamber 3 is greater than the pressure from the side of the receiving chamber 2, which ensures the forcing of the trapped suspended particles to the surface of the filter element 18 from the side of the receiving chamber 2, where they are washed down the housing 1 and are discharged through the nozzle 4 into the hydraulic lock 5. The excess wash water from the side of the outlet chamber 3 also merges through the nozzle 4 into the guide 5. From ozatvor water seal 5 washings output through the overflow nozzle 6 in a cleaning system of the enterprise.

In the process, in the hydraulic lock 5, sediment will accumulate. To remove it, a nozzle 8 is provided, through which flushing liquid is supplied to the hydraulic lock 5. It is located at the bottom of the hydraulic lock 5. A jet of washing liquid supplied to the hydraulic lock 5 raises sediment from the bottom, which is discharged through the overflow nozzle 6 to the treatment plant of the enterprise. When the ventilation system is stopped, a more complete removal of sediment from the hydraulic seal 5 through the drain plug 7 is possible.

Thus, the proposed utility model does not have all the disadvantages inherent in the device of the prototype. Simplification of maintenance is facilitated by the constructive implementation of the device, which simplifies the assembly / disassembly of the filter cartridge, as well as the availability of gauges to assess the degree of contamination of the filter cartridge, and a washing system that removes accumulated sediment during operation. The ability to remove accumulated sediment in the water seal also simplifies the maintenance of the proposed device. Along with this, the design of the filter cartridge and the presence in the filter material of stiffening rods, preventing its deformation and suction in the duct, improves the reliability of the proposed device.

Claims (5)

1. The device for air purification comprises a housing with a receiving and output chambers, with drain pipes connected to a water lock, with a hatch, with a support baffle, a filter cartridge installed in the case with support on the support baffle and fixed with self-locking clamps made on the case comprising a support frame with profiled support lodges on which a filter element made of several layers of a corrugated fibrous filter is fixed using profiled clamping strips material in which stiffening rods, a flushing system, and vacuum gauges mounted on the housing are integrated. 2. The device according to p. 1, characterized in that the water seal is equipped with an overflow fitting, a drain plug and a nozzle for supplying washing liquid. 3. The device according to claim 1, characterized in that a seal is made between the support partition and the filter cartridge. 4. The device according to claim 1, characterized in that the stiffening rods are made of stainless steel, titanium or a polymer material. 5. The device according to p. 1, characterized in that it further comprises guides welded from the inside to the side walls of the housing, along which the filter cartridge is mounted on the seat.

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