CN214891656U

CN214891656U - Negative pressure keeps apart ventilation unit for ward

Info

Publication number: CN214891656U
Application number: CN202121092610.0U
Authority: CN
Inventors: 程兵
Original assignee: Zhejiang Xinyuan Purification Equipment Co ltd
Current assignee: Zhejiang Xinyuan Purification Equipment Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2021-11-26
Anticipated expiration: 2031-05-21

Abstract

The utility model belongs to the technical field of the ward ventilation is kept apart to negative pressure, especially, ventilation unit is used in ward is kept apart to negative pressure, including the vent that runs through ward one side wall, the inner wall of vent cup jointed with the big or small shape assorted pipeline of vent, the surface of pipeline passes through the sealing washer with the inner wall of vent to be connected, and the inner wall of pipeline is provided with filter equipment. This ventilation unit is used in ward is kept apart to negative pressure, through setting up filter equipment, including primary filter screen, intermediate filter screen and adsorbed layer, atmospheric pressure in the negative pressure ward is less than the atmospheric pressure outside the ward, the air outside the ward gets into the ward through the hundred pleat windows before the vent, the air that gets into the pipeline after primary filter screen filters the dust impurity of large granule earlier, then filter some small particles through the intermediate filter screen in the pipeline, adsorb remaining material in with the air through the adsorbed layer at last, thereby let fresh air get into in the ward, reach the effect of filtering the air outside the ward.

Description

Negative pressure keeps apart ventilation unit for ward

Technical Field

The utility model relates to a ward ventilation technical field is kept apart to the negative pressure, especially relates to a ventilation unit is used in ward is kept apart to negative pressure.

Background

The negative pressure ward is that under a special device, the air pressure in the ward is lower than the air pressure outside the ward, so that only fresh air outside can flow into the ward from the air circulation, and air polluted by a patient in the ward cannot leak out but is timely discharged to a fixed place through a special channel. Therefore, places outside the ward are not polluted, so that the chance of massive infection of medical staff is reduced, and the ward is most suitable for rescuing patients with respiratory infectious diseases like SARS.

The negative pressure isolation ward used at present is used for treating patients with infectious diseases, so that the inside air contains infected viruses, medical workers need to replace the air in the ward in time to avoid infection when working in the ward, the ventilation device in the negative pressure isolation ward at present hardly achieves the purification effect on the air conveyed indoors, and the air flowing into the ward can not be ensured to be replaced quickly.

SUMMERY OF THE UTILITY MODEL

Based on the technical problem that the air that will transport in the ward that ventilation unit among the ward can not be fine keeps apart in current negative pressure purifies, the utility model provides a ventilation unit for ward is kept apart to negative pressure.

The utility model provides a ventilation unit for negative pressure isolation ward, including the vent that runs through ward one side wall, the inner wall of vent cup joints the pipeline with the vent size and shape assorted, the surface of pipeline with the inner wall of vent passes through the sealing washer to be connected, the inner wall of pipeline is provided with filter equipment, filter equipment includes primary filter screen, the air that gets into the ward through the pipeline at first filters through primary filter screen, filters the large granule thing that contains in the air that gets into;

the outer fixed surface of one end of vent installs the disinfect box, the disinfect box is to through the pipeline is about to get into the air in the ward and is disinfected.

Preferably, a pleated window is fixedly installed on the outer surface of the other end of the ventilation opening through a support column, and one end of the pleated window is communicated with one end of the pipeline;

through above-mentioned technical scheme, the flabellum of pleated window sets up to the shape of downward sloping and pastes the PE protection film on the surface of flabellum, and the flabellum of downward sloping is favorable to blockking partial dust in the outside of flabellum, and the PE protection film prevents that the dust from adhering to the surface at the flabellum simultaneously, has reached the effect of removing dust.

Preferably, the outer surface of the primary filter screen is fixedly mounted on the inner wall of the pleated window, and the inner wall of the pipeline close to one side of the pleated window is fixedly mounted with a fan;

through above-mentioned technical scheme, the atmospheric pressure in the negative pressure isolation ward is less than the atmospheric pressure outside the ward, and the air outside the ward can flow into in the ward through the vent to the flabellum that drives the fan rotates, and in the rotation of fan flabellum inhaled the air outside the ward into the ward through the vent, inhaled air filtered large granule dust impurity through primary filter screen at first.

Preferably, the filtering device further comprises a middle-stage filter screen, the outer surface of the middle-stage filter screen and the inner wall of one side, close to the fan, of the pipeline are fixedly installed, an adsorption layer is fixedly installed on the inner wall, close to the disinfection box, of the pipeline, and activated carbon is arranged inside the adsorption layer;

through above-mentioned technical scheme, earlier after primary filter screen filters large granule dust and impurity, filter the tiny particle through the intermediate level filter screen that density is less than primary filter screen again, adsorb remaining material of air through the adsorbed layer at last to obtain fresh air and pass through the pipeline and get into the disinfect box in, reach the effect of filtering the air outside the ward.

Preferably, a plurality of ultraviolet disinfection lamps are fixedly mounted on the inner wall of the disinfection box, one side surface of each ultraviolet disinfection lamp is fixedly mounted on the inner wall of the disinfection box, an air inlet is formed in the surface of one side, close to the ventilation opening, of the disinfection box, and one end of the air inlet is communicated with one end of the pipeline;

through above-mentioned technical scheme, the air that gets into the disinfect box through the air intake receives the irradiation of a plurality of ultraviolet ray disinfection lamps to carry out the disinfection, reaches the effect of disinfecting to the air that gets into in the ward outside the ward.

Preferably, the surface of the other side of the sterilizing box is provided with a plurality of fine air outlets;

through above-mentioned technical scheme, the air after the ultraviolet ray disinfection lamp sterilization passes through in the air outlet gets into the ward to reach the effect of circulation of air in the ward.

The utility model provides a beneficial effect does:

1. through setting up filter equipment, including primary filter screen, intermediate filter screen and adsorbed layer, atmospheric pressure in the negative pressure ward is less than the atmospheric pressure outside the ward, consequently, the air outside the ward gets into the ward in the pleated window before through the vent, the air that gets into at first gets into the pipeline after the dust impurity of big granule is filtered to primary filter screen, then filter some small particles through the intermediate filter screen in the pipeline, adsorb remaining material in with the air through the adsorbed layer at last, thereby let in fresh air admission ward, reach the effect of filtering the air outside the ward.

2. Through setting up the disinfect box, including the ultraviolet ray disinfection lamp, air intake and air outlet, the air intake that the filter equipment filtration in the pipeline passes through on the disinfect box gets into the disinfect box with being connected of pipeline in, the air in the disinfect box carries out disinfection through the shining of ultraviolet ray disinfection lamp, tiny air outlet is favorable to increasing the time that the air stops in the disinfect box, let the air obtain effectual disinfection, the air after the disinfection flows into the ward through the air outlet fast in, reach the effect to air disinfection.

Drawings

Fig. 1 is a schematic view of a ventilation device for a negative pressure isolation ward provided by the present invention;

FIG. 2 is a perspective view of a ventilation opening structure of the ventilation device for a negative pressure isolation ward in accordance with the present invention;

FIG. 3 is a perspective view of a pleated window structure of a ventilation device for a negative pressure isolation ward in accordance with the present invention;

FIG. 4 is a perspective view of a fan structure of a ventilation device for a negative pressure isolation ward in accordance with the present invention;

fig. 5 is a perspective view of the disinfection box structure of the ventilation device for the negative pressure isolation ward of the utility model.

In the figure: 1. a vent; 2. a pipeline; 3. a primary filter screen; 31. a middle-grade filter screen; 32. an adsorption layer; 4. a sterilizing box; 41. an ultraviolet disinfection lamp; 42. an air inlet; 43. an air outlet; 5. a pleated window; 6. a fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, a ventilation device for a negative pressure isolation ward comprises a vent 1 penetrating through one side wall of the ward, a pipeline 2 matched with the vent 1 in size and shape is sleeved on the inner wall of the vent 1, the outer surface of the pipeline 2 is connected with the inner wall of the vent 1 through a sealing ring, a filtering device is arranged on the inner wall of the pipeline 2, the filtering device comprises a primary filter screen 3, air entering the ward through the pipeline 2 is firstly filtered through the primary filter screen 3, and large particles contained in the entering air are filtered;

the outer surface of the other end of the ventilation opening 1 is fixedly provided with a pleated window 5 through a support column, one end of the pleated window 5 is communicated with one end of the pipeline 2, fan blades of the pleated window 5 are in a downward inclined shape, a PE protective film is attached to the surfaces of the fan blades, the downward inclined fan blades are beneficial to blocking part of dust outside the fan blades, meanwhile, the PE protective film prevents the dust from attaching to the surfaces of the fan blades, and the dust removal effect is achieved;

the outer surface of the primary filter screen 3 and the inner wall of the pleated window 5 are fixedly installed, the inner wall of one side of the pipeline 2 close to the pleated window 5 is fixedly installed with a fan 6, the air pressure in a negative pressure isolation ward is lower than the air pressure outside the ward, the air outside the ward can flow into the ward through a vent 1, so that the fan blades of the fan 6 are driven to rotate, the rotation of the fan blades of the fan 6 enables the air outside the ward to be sucked into the ward through the vent 1, and the sucked air firstly filters large-particle dust impurities through the primary filter screen 3;

the filter device also comprises a middle filter screen 31, the outer surface of the middle filter screen 31 and the inner wall of one side of the pipeline 2 close to the fan 6 are fixedly installed, the inner wall of the pipeline 2 close to the disinfection box 4 is fixedly installed with an adsorption layer 32, activated carbon is arranged inside the adsorption layer 32, large-particle dust and impurities are filtered by the primary filter screen 3, then tiny particles are filtered by the middle filter screen 31 with the density smaller than that of the primary filter screen 3, and finally, residual substances in air are adsorbed by the adsorption layer 32, so that fresh air enters the disinfection box 4 through the pipeline 2, and the effect of filtering air outside a ward is achieved;

the outer surface of one end of the ventilation opening 1 is fixedly provided with a disinfection box 4, and the disinfection box 4 is used for disinfecting and sterilizing the air which is about to enter a ward through the pipeline 2;

a plurality of ultraviolet disinfection lamps 41 are fixedly installed on the inner wall of the disinfection box 4, one side surface of each ultraviolet disinfection lamp 41 is fixedly installed with the inner wall of the disinfection box 4, an air inlet 42 is formed in one side surface, close to the ventilation opening 1, of the disinfection box 4, one end of each air inlet 42 is communicated with one end of the pipeline 2, air entering the disinfection box 4 through the air inlets 42 is irradiated by the ultraviolet disinfection lamps 41 for sterilization, and the effect of sterilizing air entering a ward outside the ward is achieved;

a plurality of small air outlets 43 are formed in the surface of the other side of the sterilizing box 4, and air sterilized by the ultraviolet sterilizing lamp 41 enters a ward through the air outlets 43, so that the effect of air circulation in the ward is achieved.

The working principle is as follows: when the negative pressure is used for isolating a ward, the air in the ward needs to be changed in a flowing manner in time, the air pressure in the ward is lower than the air pressure outside the ward, the air outside the ward enters the ward through the pleated window 5 at the vent 1, the air entering the pleated window 5 firstly filters large-particle dust and impurities through the primary filter screen 3, the air entering the pipeline 2 along the pleated window 5 drives the fan 6 to rotate, the air outside the ward is sucked into the pipeline 2 through the rotation of the fan 6, the air entering the pipeline 2 is filtered through the intermediate filter screen 31 to remove micro particles, then the residual substances in the air are adsorbed through the adsorption layer 32, the air enters the disinfection box 4 along the air inlet 42 communicated with the pipeline 2, the ultraviolet disinfection lamp 41 in the disinfection box 4 disinfects the air entering the air, and meanwhile, the fine air arranged at the air outlet 43 is added for the time of staying in the disinfection box 4, the sterilized air rapidly flows into the ward through the air outlet 43.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a ventilation unit is used in negative pressure isolation ward, includes vent (1) that runs through ward side wall, its characterized in that: the inner wall of the vent (1) is sleeved with a pipeline (2) matched with the vent (1) in size and shape, the outer surface of the pipeline (2) is connected with the inner wall of the vent (1) through a sealing ring, the inner wall of the pipeline (2) is provided with a filtering device, the filtering device comprises a primary filter screen (3), air entering a ward through the pipeline (2) is firstly filtered through the primary filter screen (3), and large particles contained in the entering air are filtered;

the outer fixed surface of one end of vent (1) installs disinfect box (4), disinfect box (4) are to passing through pipeline (2) are about to get into the air in the ward and are disinfected.

2. The ventilation device for the negative pressure isolation ward according to claim 1, wherein: the outer surface of the other end of the ventilation opening (1) is fixedly provided with a pleated window (5) through a support column, and one end of the pleated window (5) is communicated with one end of the pipeline (2).

3. The ventilation device for the negative pressure isolation ward according to claim 2, wherein: the outer surface of the primary filter screen (3) and the inner wall of the pleated window (5) are fixedly installed, and the pipeline (2) is close to the inner wall of one side of the pleated window (5) and is fixedly installed with a fan (6).

4. The ventilation device for the negative pressure isolation ward according to claim 3, wherein: the filter equipment still includes medium level filter screen (31), the surface of medium level filter screen (31) with pipeline (2) are close to one side inner wall fixed mounting of fan (6), pipeline (2) are close to the inner wall fixed mounting of disinfect box (4) has adsorbed layer (32), the inside of adsorbed layer (32) is provided with the active carbon.

5. The ventilation device for the negative pressure isolation ward according to claim 1, wherein: the inner wall fixed mounting of disinfect box (4) has a plurality of ultraviolet ray disinfection lamp (41), the side surface of ultraviolet ray disinfection lamp (41) with the inner wall fixed mounting of disinfect box (4), disinfect box (4) are close to air intake (42) have been seted up to a side surface of vent (1), the one end of air intake (42) with the one end intercommunication of pipeline (2).

6. The ventilation device for the negative pressure isolation ward according to claim 1, wherein: and a plurality of fine air outlets (43) are formed in the surface of the other side of the sterilizing box (4).