RU2535030C2 - Bactericidal compact recirculator - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment and can be used for decontamination of air in premises with crowds of people. Bactericidal compact recirculator contains case, which consists of two semi-cases, one of which has input window, in which filter is placed, and the second one has output window, in which ventilator is placed; irradiation chamber with installed in it bactericidal lamps and labyrinth light-protective screens, located on input and output longitudinally on the axis of case separation. each labyrinth screen is made in form of assembly construction of box shape, consisting of two halves, one of which, made cup-shaped with partition and with located on the bottom flanges, is provided with additional sidewall located on the bottom and faces window with its open part, and the other, made with symmetrical central hole and with flanges, is provided with funnel-shaped sidewall, connected with said flanges, with flanges and sidewall enter first half of screen, enveloping sidewall of the latter.

EFFECT: invention provides possibility of changing technological modes of air decontamination, and makes it possible to increase efficiency of blocking ultraviolet rays on recirculator output.

2 cl, 7 dwg

Description

The invention relates to medical equipment and can be used for local air disinfection using ultraviolet radiation in rooms with crowds.

Known bactericidal recirculator for air disinfection, comprising a housing with inlet and outlet windows, an irradiation chamber located inside the housing with gas-discharge low pressure mercury germicidal lamps longitudinally installed in the chamber, equipped with labyrinth light shields at the inlet and outlet, while a filter is placed in the inlet window, and in the exit window there is a fan, in addition, the labyrinth screens consist of two symmetrically arranged figured partitions, one of which is made in the form of a continuous plate astins with flanging - bends along the edges directed to the window, and is installed on the side of the irradiation chamber and with a gap relative to the side walls of the housing, and another, made with a central hole, equipped at the edges with flanging - bends directed towards the irradiation chamber, is installed on the side of the window and adjoins without a gap to the side walls of the housing (see patent RU 2306150 C1, A61L 9/20, 2007).

A disadvantage of the known recirculator is the complex design of the labyrinth screens made in the housing, which consists in their low technological effectiveness due to the complexity of manufacturing molds to receive together with the housing, the inability to change the design and shape of the labyrinth screens when changing the technological modes of air disinfection, as well as the significant dimensions of the recirculator in height due to the longitudinal placement of the lamps in the irradiation chamber. This embodiment of the recirculator provides for its use both in the wall version and in the mobile version on a trolley.

Also known is a bactericidal recirculator for air disinfection, comprising a housing consisting of two half-shells, one of which has an input window located in its lower rounded part, and the other an output window located in its upper rounded part, an irradiation chamber located inside the housing and with gas-discharge low-pressure mercury germicidal lamps installed in the chamber, equipped with labyrinth light-shielding partitions at the inlet and outlet, while the filter is placed in the inlet window, and the exit window is a fan, and the labyrinth light-shielding partitions are made in the form of three parallel plates, two of which are placed on one half-case, and the third is placed between the first two plates on the opposite side on the other half-case (see patent RU 115659 C1, A61L 9/20 , 2012).

A disadvantage of the known recirculator is also the complex design of the labyrinth screens, made together with half-shells, consisting in their low technological complexity due to the complexity of manufacturing molds to produce half-shells, the inability to change the design and shape of the labyrinth screens when changing the air disinfection modes, as well as the significant dimensions of the recirculator height due to the longitudinal placement of the lamps in the irradiation chamber.

A bactericidal recirculator for air disinfection is also known in the art, comprising a housing with inlet and outlet windows, in which an irradiation chamber with transversely arranged low-pressure mercury discharge lamps is formed. Symmetrically located central transverse plates with bends at the edges directed to the window are attached to the base of the half-shell, and two side transverse plates with bends at the edges are oppositely attached in the same plane to the base of each half-shell and to the side walls from the side of the half-shell. The central transverse plates and the lateral transverse plates, when connecting the half-bodies, form labyrinth screens in the body with continuous transverse labyrinth partitions. A filter is placed in the input window, and a fan is placed in the output window (see patent RU 112829 C1, A61L 9/20, 2011).

A recirculator disadvantage is also the complicated design of half-shells with labyrinth screens complex in design and technological execution, consisting in the laboriousness of manufacturing molds, the inability to change the design and shape of the labyrinth screen when changing the technological modes of air disinfection, and the ineffective blocking of ultraviolet rays at the outlet of the recirculator ,

The technical task of the invention is aimed at simplifying the design of the recirculator, ensuring the manufacturability of the labyrinth screens and the ability to change the technological modes of air disinfection with increasing the efficiency of blocking ultraviolet rays at the outlet of the recirculator, as well as reducing the dimensions of the recirculator for its use near the workplace or at the user's workplace .

The technical result is ensured by the fact that the bactericidal recirculator is compact, comprising a housing consisting of two half-shells, one of which has an inlet window and the other has an outlet window, an irradiation chamber with low-pressure mercury germicidal lamps installed in the chamber, equipped with labyrinths at the inlet and outlet light shields with curved partitions, one of which has a cup-shaped shape, and the other is made with a symmetrical hole and with a flange of the cup-shaped inside In this case, a filter is located in the input window, and a fan is located in the output window, unlike the prototype, each half-housing at the window location has nozzles in which the filter and fan are respectively located and each labyrinth screen is made of a box-shaped prefabricated structure consisting of two halves: one of which, made in a cup-shaped form with a partition and with a flange located at the bottom, is equipped with an additional shell located at the bottom and is directed by the open part towards the window, and the other is made Single symmetrical with a central opening and with eyelet, provided with a funnel-shaped shroud connected to said eyelet, wherein the flange and the funnel-shaped shell is included inside the first half of the screen shroud encompassing the latter, and with labyrinth baffles screens arranged longitudinally along the axis of the connector housing.

In addition, a removable stand is attached to the rear wall of the housing.

The set of distinguishing features “each half-housing at the location of the window has nozzles in which the filter and fan are located and each labyrinth screen is made of a prefabricated box-shaped structure consisting of two halves: one of which is made in a cup-shaped form with a partition and with a flange located at the bottom, equipped with an additional shell located at the bottom and directed by the open part towards the window, and the other, made with a symmetrical central hole and with a flange, is equipped with a funnel a flap connected to the flanging, while flanging and a funnel-shaped flange enter the first half of the screen, covering the flap of the latter, and labyrinth screens with partitions are located longitudinally along the axis of the housing connector, which allowed achieving a technical result - simplifying the design of the recirculator to ensure the manufacturability of the labyrinth screens and the ability to change the technological modes of air disinfection with an increase in the efficiency of blocking ultraviolet rays on exit from the recirculator, as well as reducing the size of the recirculator for the possibility of its use near the workplace or in the workplace.

The features of the invention are “essential”, as they respond to the anxiety of clause 10. 7. 4. 3. (2) of the Regulations:

- “each half-housing at the location of the window has nozzles in which the filter and fan are respectively located” - the presence of a structural element is a new technical solution in comparison with the prototype, which is absent in the latter;

- “each labyrinth screen is made of a prefabricated structure” - the presence of a structural element is a new technical solution in comparison with the prototype, which is absent in the latter;

- "... box-shaped, consisting of two halves ..." - the form of the element is a new technical solution in comparison with the prototype, which is absent in the latter;

- “... one of which, made in a cup-shaped form with a partition and with a flange located on the bottom, is equipped with an additional shell located at the bottom and the open part is directed towards the window, and the other, made with a symmetrical central hole and a flange, is equipped with a funnel-shaped shell connected to the said flanging, while the flanging and the funnel-shaped shell go inside the first half of the screen, covering the shell of the last ", the form of the element, the relative position of the elements are a new technical solution in comparison with the prototype, which is absent in the latter;

- "... labyrinth screens with partitions are located longitudinally along the axis of the housing connector", the relative position of the elements is a new technical solution in comparison with the prototype, in which the screens are located horizontally.

Therefore, each distinguishing feature is “essential” and necessary, and the proposed technical solution meets the condition of patentability “novelty”.

Verification of inventive step by the applicant:

- determined the closest analogue is the prototype: patent 112829;

- there are signs that the claimed invention, characterized in an independent claim, differs from the prototype by distinctive features: “each half-housing at the location of the window has nozzles in which the filter and fan are respectively placed and each labyrinth screen is made of a box-shaped prefabricated structure consisting of two half, one of which is made in a cup-shaped form with a partition and with a flange located at the bottom, equipped with an additional shell located at the bottom and directed and the open part towards the window, and the other, made with a symmetrical central hole and with a flange, is equipped with a funnel-shaped shell connected to the said flanging, while the flanging and funnel-shaped shell are inside the first half of the screen, covering the shell of the latter, and the labyrinth screens with partitions are located longitudinally along the axis of the housing connector ”;

- from the prior art, solutions that have signs that match the distinctive features of the claimed invention have not been identified, and the popularity of the distinctive features on the technical result indicated by the applicant has not been established: reducing the dimensions and simplifying the design of the recirculator, ensuring the manufacturability of the manufacture of labyrinth screens and the possibility of changing technological modes air disinfection with increasing efficiency of blocking ultraviolet rays at the outlet of the recirculator and its enenie near user locations.

From the above it follows that the known prototype is the closest technical solution identified by the applicant from the prior art, the claimed technical solution does not reveal signs that match the distinguishing features of the prototype.

Therefore, the claimed technical solution meets the condition of patentability "inventive step".

In FIG. 1 shows a General view of the recirculator, in axonometric projection; in FIG. 2 - the same, rear view; in FIG. 3 is a front view of a recirculator; in FIG. 4 is a section AA in FIG. 3; in FIG. 5 is a view B in FIG. 3; in FIG. 6 shows a General view of the labyrinth screen, in section; in FIG. 7 is a section BB of FIG. 6.

The compact bactericidal recirculator contains a housing 1 consisting of two half-shells 2 and 3. Half-shell 2 has an inlet window 4 located in its lower rounded part and a pipe 5, and half-housing 3 has an outlet window 6 located in its upper rounded part and a pipe 7. The irradiation chamber 8 is placed inside the housing 1, gas-discharge mercury germicidal lamps 9 of low pressure are transversely mounted in the chamber 8.

At the inlet of the disinfected air into the recirculator housing 1 and at the air outlet from it, labyrinth light shields 10 are installed, while in the inlet window 4 in the nozzle 5 a filter 11 is placed, and in the outlet window 6 in the nozzle 7 there is a fan 12.

Each labyrinth screen 10 is made of a prefabricated box-shaped structure and consists of two halves: one 13 of which is cup-shaped with a bottom 14 and a flange 15 located on the bottom 14, equipped with an additional shell 16 located on the bottom 14 and directed with the open part toward the window 4 and the other half 17 is made with a symmetric central hole 18 and with a flange 19, provided with a funnel-shaped rim 20 connected to the said flange 19, while the flange 19 and the funnel-shaped rim 20 are inside the first than half of the screen 13 covering its shroud 16. The two halves of the labyrinth of the screen 10 interconnected by fasteners such as self-tapping screws 21, and collected by the labyrinth construction of the screen is set to nozzle 5 and 7 and fixed to them, respectively, the input and output windows.

Labyrinth screens 10 with partitions are located longitudinally along the axis of the connector 22 of the housing 1.

On the rear wall of the housing 1 at the half-shell 2 there is a plate 23 with T-shaped slots 24, allowing you to mount the recirculator on the wall. In addition, on the cover 23 of the housing 1 at the half-shell 2, a U-shaped stand 26 is inserted in two holes 25.

The recirculator operates as follows.

The disinfected air taken from the room through the inlet window 4 is cleaned of dust in the filter 11, passes through the labyrinth screen 10, and enters the irradiation chamber 6, where it is disinfected by the ultraviolet bactericidal radiation flux generated by low-pressure mercury vapor lamps 7. The processed air through the labyrinth screen 10 and under the action of the fan 12 is directed into the room. The labyrinths of the screens 10, both input and output, prevent ultraviolet radiation from entering through the windows 4 and 6, which allows people to be indoors during the disinfection of air.

The prefabricated design of the labyrinth screen allows you to change the technological modes of air disinfection by changing the internal design of the labyrinths, and thanks to the additional shells, it helps to increase the efficiency of blocking ultraviolet rays at the outlet of the recirculator.

The placement of lamps transverse to the irradiation chamber and the implementation of the labyrinth screens of a compact design reduces the dimensions of the recirculator and makes it compact with dimensions of 406 × 290 × 146 mm, smaller compared to analogues (see patent for industrial design RU 64154, MKPO 24-01, 2007, p dimensions 890 × 370 ×Ч 140 mm).

The invention "Compact bactericidal recirculator" is industrially applicable.

JSC “Production Association“ Plant named after Sergo ”developed technical documentation, produced and tested samples of the recirculator.

Claims (2)

1. The bactericidal compact recirculator, comprising a housing consisting of two half-shells, one of which has an inlet window and the other has an outlet window, an irradiation chamber with low-pressure mercury germicidal lamps installed in the chamber, equipped with labyrinth light shields at the inlet and outlet with figured partitions, one of which has a cup-shaped shape, and the other is made with a symmetrical hole and with a flange entering inside the cup-shaped partition, while in the input window is placed iltr, and in the exit window there is a fan, characterized in that each half-housing at the window location has nozzles in which a filter and a fan are respectively placed and each labyrinth screen is made of a prefabricated box-shaped structure consisting of two halves: one of which is made in a cup-shaped forms with a partition and with a flange located at the bottom, equipped with an additional shell located at the bottom and directed the open part towards the window, and the other, made with a symmetrical central hole and with flanging, equipped with a funnel-shaped shell connected to the said flanging, while the flanging and funnel-shaped shell enter the first half of the screen, covering the shell of the latter, and the labyrinth screens with partitions are located longitudinally along the axis of the housing connector. 2. The recirculator according to claim 1, characterized in that a removable stand is attached to the rear wall of the housing.

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