CN114294749A - Circulating purification device for ventilation air conditioner of hospital building - Google Patents
Circulating purification device for ventilation air conditioner of hospital building Download PDFInfo
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- CN114294749A CN114294749A CN202210029424.5A CN202210029424A CN114294749A CN 114294749 A CN114294749 A CN 114294749A CN 202210029424 A CN202210029424 A CN 202210029424A CN 114294749 A CN114294749 A CN 114294749A
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Abstract
The invention relates to the technical field of medical building ventilation, in particular to a circulating purification device of a ventilation air conditioner of a hospital building, which comprises a solid air washing device and an air filtering device which are communicated, wherein the input end of the solid air washing device is connected to an air outlet of a ventilation area of the hospital building, the output end of the air filtering device is connected to an air inlet of the ventilation area of the hospital building, the solid air washing device is used for purifying primary exhaust air through solid particles and outputting secondary exhaust air to the air filtering device, and the air filtering device is used for filtering the secondary exhaust air and re-conveying clean air to the ventilation area of the hospital building. The invention utilizes the solid particle adsorption and fluidized bed principle to sterilize and filter the air exhausted by the hospital building and then supply the air to the hospital building again for ventilation, thereby reducing the energy consumption and preventing the virus in the hospital building from diffusing to the outside.
Description
Technical Field
The invention relates to the technical field of medical building ventilation, in particular to a circulating purification device for a ventilation air conditioner of a hospital building.
Background
In recent years, new coronavirus has been abused worldwide, respiratory diseases caused by the virus cause serious threats and losses to the life safety of people and the national economy, and the attention of various social circles to the indoor ventilation effect of hospital wards is increasing day by day. The hospital is a special place which integrates patients, susceptible people, accompanying family members and medical care personnel, and the high density of virus circulating in the air of the hospital is one of the distinctive features of the hospital different from other common public buildings. In particular to an infectious disease hospital, the virus in the air of the hospital ward can be discharged out of the outside air after being disinfected along with a ventilation system of the hospital.
Existing hospital emptying is generally selected as high-altitude discharge, and when virus-containing air is diluted to more than 10000 times, the virus-containing air is no longer infectious, so that the virus density in the emptying air is diluted by using outside air. However, the uncontrollable factors of the air containing the virus discharged from the outside are too much, and even a small amount of the virus may bring the risk of virus infection or spread to the outside public.
In the ordinary operating state of a hospital building, the ventilation system mainly provides fresh air required by human respiration to ensure indoor air quality, and in the state, the fresh air ventilation frequency generally required by a ward is 2 times/h, and the air volume is small. When the negative pressure ward is used as a negative pressure ward in an epidemic situation running state, the air exchange times in the ward are minimum 6 times/h, and the negative pressure ward with pressure difference gradient needs to be formed so as to ensure the directional flow of air and avoid cross infection. In any operating state, the hospital building needs to be ventilated, and therefore, a large amount of air needs to be circulated in the hospital building.
In view of the above, there is a need for a ventilation device suitable for air internal circulation of hospital buildings and air virus killing in the internal circulation.
Disclosure of Invention
In view of the above, the invention provides a circulating purification device for a ventilation air conditioner of a hospital building, which utilizes the principles of solid particle adsorption and a fluidized bed to sterilize and filter the exhaust air of the hospital building and then supply the air to the hospital building again for ventilation, thereby reducing energy consumption and preventing viruses in the hospital building from diffusing to the outside.
In order to achieve the purpose, the invention is realized by the following technical scheme: the invention provides a circulating purification device of a ventilation air conditioner of a hospital building, which comprises a solid air washing device and an air filtering device which are communicated, wherein the input end of the solid air washing device is connected to an air outlet of a ventilation area of the hospital building, the output end of the air filtering device is connected to an air inlet of the ventilation area of the hospital building, the solid air washing device is used for purifying primary exhaust air through solid particles and outputting secondary exhaust air to the air filtering device, and the air filtering device is used for filtering the secondary exhaust air and re-conveying clean air to the ventilation area of the hospital building.
In foretell hospital building ventilation air conditioner circulation purification device, as preferred scheme, the air exit with be provided with exhaust valve and exhaust fan between the solid gas washing device in order, the solid gas washing device with strain between the gas device through the trachea intercommunication to be provided with the ooff valve, strain the gas device with be provided with negative-pressure air fan between the air intake.
In the above mentioned circulation purification device for ventilation air-conditioning of hospital buildings, as a preferred scheme, the solid air-washing device includes an upper box body, a lower box body and an air-diffusing exhaust, the upper box body and the lower box body are spliced to form a sealed cavity, the input end of the air-diffusing exhaust is located outside the lower box body and is communicated with the air outlet of the ventilation area, the output end of the air-diffusing exhaust is located at the inner bottom of the lower box body, the lower box body is filled with solid particles, and the top of the upper box body is communicated to the air-filtering device.
In the above mentioned circulation purification device for ventilation and air conditioning of hospital buildings, as a preferred scheme, the top of the upper box body is provided with an exhaust seat, the exhaust seat is provided with a first filter cartridge, and the bottom of the first filter cartridge is located inside the upper box body.
In foretell hospital building ventilation air conditioner circulation purification device, as preferred scheme, the exhaust of loosing input end is provided with the intake pipe, intake pipe and ventilation area the air exit intercommunication, the exhaust of loosing output end all is provided with a plurality of exhaust holes including a plurality of tip confined pipelines, every closed pipeline below.
In the above mentioned ventilation air-conditioning circulation purification device for hospital buildings, as a preferable scheme, the solid particles filled in the lower box body are a mixture of quartz sand and activated carbon, wherein the volume ratio of quartz sand to activated carbon is 3: 1.
in the above mentioned ventilation air-conditioning circulation purification device for hospital buildings, as a preferred scheme, the range of the particle size of the quartz sand is [0.25, 0.35] mm, and the range of the particle size of the activated carbon is [2, 5] mm.
In the above mentioned ventilation air-conditioning circulation purification device for hospital buildings, as a preferred scheme, a discharge box is arranged below the lower box body, the upper box body is provided with a charging opening, an opening is arranged above the discharge box and is communicated with the lower box body, and a gate valve is arranged at the joint of the discharge box and the lower box body.
In the above mentioned circulation purification device for ventilation air-conditioning of hospital buildings, as a preferred scheme, a conveying screw is arranged in the discharge box, a discharge motor is arranged outside one end of the discharge box, a discharge opening is formed in the other end of the discharge box, and the output end of the discharge motor is connected with the conveying screw.
In the above-mentioned circulation purification device for ventilation air conditioners in hospital buildings, as a preferred scheme, a feed opening is provided at the top of the discharge box, a valve port is provided on the gate valve, the feed opening is in accordance with the valve port, a groove is provided on the outer side of the top of the discharge box, the inner side of the discharge box extends for a certain distance, the distance extending inwards from the top of the discharge box is greater than the width of the feed opening, the discharge box is inserted into the gate valve from the groove, and the distance from the edge of the valve port to the outer side surface of the gate valve is greater than the width of the valve port.
In the above mentioned ventilation and air conditioning circulation purification device for hospital buildings, preferably, the air filtering device comprises a first lower filtering box, a second lower filtering box and an upper filtering box, the upper filter box comprises a first grid, a second grid and a third grid which are mutually independent, the bottom of the upper filter box is hermetically connected with the first lower filter box and the second lower filter box, the first grid, the first lower filtering box, the second grid, the second lower filtering box and the third grid are communicated in sequence, a second filter cylinder and a third filter cylinder are respectively arranged between the first lower filter box and the second grid and between the second lower filter box and the third grid, the outer side wall of the first grid is provided with an air inlet flange, the outer side wall of the third grid is provided with an air outlet flange, the air inlet flange is communicated to the switch valve, and the air outlet flange is communicated to the negative pressure fan.
In the above mentioned circulation purification device for ventilation and air conditioning of hospital buildings, as a preferable scheme, the bottom of the first grid is provided with a first air passing hole, one side of the bottom of the second grid is provided with the second filter cartridge, the other side of the bottom of the second grid is provided with a second air passing hole, the bottom of the second filter cartridge is located inside the first lower filter box, the bottom of the third grid is provided with a third filter cartridge, and the bottom of the second filter cartridge is located inside the second lower filter box.
In foretell hospital building ventilation air conditioner circulation purifier, as preferred scheme, the second is strained a section of thick bamboo and the third is strained a section of thick bamboo and is all installed through the step hole, the step hole is including first round platform and the second round platform that sets gradually from bottom to top, the second round platform internal diameter is greater than first round platform internal diameter, the second is strained a section of thick bamboo and the third is strained a section of thick bamboo and is included stack shell and flange, the stack shell is the filter screen, the flange is fixed to be set up the stack shell upper end, the stack shell external diameter with through transition cooperation in the first round platform, the flange external diameter is greater than first round platform internal diameter, is less than the second round platform internal diameter, the flange is in through ring cover crimping on the first round platform up end, the ring cover is including main aspects and tip, the main aspects external diameter is greater than the second round platform internal diameter, the minor segment external diameter is not greater than the second round platform internal diameter.
In the above mentioned ventilation air-conditioning circulation purification device for hospital buildings, as a preferred scheme, the outer circular surface of the small end of the ring sleeve is provided with an external thread, the inner circular surface of the second circular table is provided with an internal thread, and the ring sleeve is connected with the second circular table through a thread.
In foretell hospital building ventilation air conditioner circulation purification device, as preferred scheme, first grid the second grid with third grid top is provided with first case lid, second case lid and third case lid respectively, first case lid the second case lid with the third case lid is provided with the observation window respectively, the observation window is transparent glass, first case lid the second case lid with the third case lid respectively with first grid the second grid with third grid sealing connection.
The invention provides a circulating purification device for a ventilation air conditioner of a hospital building, which has the following beneficial effects:
1. the invention provides a ventilation air-conditioning circulation purification device for hospital buildings, wherein exhaust air of the hospital buildings is introduced into a solid air washing device, the exhaust air of the hospital buildings is sterilized by utilizing the principles of solid particle adsorption and a fluidized bed, solid particles are a mixture of quartz sand and active carbon particles, the quartz sand can flow by introducing air into the quartz sand (the fluidized bed principle), the active carbon particles can effectively adsorb microorganisms such as viruses in the air, the active carbon can fully contact with the air flowing through the quartz sand by flowing and dispersing in the quartz sand, and meanwhile, the quartz sand also has the virus adsorption capacity; the grain size range of the quartz sand grains is [0.25, 0.35] mm, dust is removed, and the dust in the quartz sand is prevented from floating along with air and entering the next procedure;
2. the invention provides a ventilation air-conditioning circulation purification device for a hospital building, wherein a discharge box is arranged below a solid gas washing device, a charging opening is arranged above the solid gas washing device, quartz sand and activated carbon particles are replaced after being used for a period of time, and the replaced quartz sand and activated carbon particles can be reused after being placed and cooled for a period of time through high-temperature treatment, so that the maintenance cost is saved;
3. the invention provides a circulating purification device of a ventilation air conditioner in a hospital building, wherein an air filtering device comprises two stages of filtering, adopts a box-type structure, and further filters air exhausted by a solid gas washing device, a first lower filtering box and a second lower filtering box can store filtered dust particles, and an end cover of an upper filtering box is opened to facilitate replacement of the second filtering box and a third filtering box; the air exhaust of the hospital building is sterilized and filtered by the solid air washing device and the air filtering device, and the air exhaust can be supplied to the hospital building again for ventilation, so that the energy consumption is reduced, and meanwhile, viruses in the hospital building are prevented from diffusing to the outside.
Drawings
Fig. 1 is a schematic structural diagram of an application flow of a ventilation air-conditioning circulation purification device for a hospital building provided by an embodiment of the invention;
FIG. 2 is a schematic diagram of the overall structure of a ventilation and air conditioning circulation purification device for a hospital building according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a solid gas washing device of a circulation purification device for ventilation and air conditioning of a hospital building according to an embodiment of the present invention;
fig. 4 is a schematic cut-away general structural diagram of a solid gas washing device of a ventilation air-conditioning circulation purification device for a hospital building according to an embodiment of the present invention;
FIG. 5 is a schematic view of the general structure of the air-dispersing exhaust of the ventilation air-conditioning circulation purification device for the hospital building according to the embodiment of the present invention;
FIG. 6 is a schematic view of the general structure of the discharge box of the circulating purification device for the ventilation and air conditioning of the hospital building provided by the embodiment of the invention;
FIG. 7 is a schematic sectional view of a solid gas cleaning device of a circulating purification device for ventilation and air conditioning of a hospital building according to an embodiment of the present invention;
FIG. 8 is a schematic view of the general structure of an air filtering device of a circulating purification device for ventilation and air conditioning of a hospital building according to an embodiment of the present invention;
fig. 9 is an exploded schematic view of an air filtering device of a circulating purification device for ventilation and air conditioning of a hospital building according to an embodiment of the present invention;
fig. 10 is a schematic cross-sectional structure view of an air filtering device of a circulating purification device of a ventilation air conditioner in a hospital building according to an embodiment of the present invention.
Description of reference numerals:
1-ventilation zone, 2-air outlet, 3-air inlet, 4-air outlet valve, 5-air outlet, 6-solid air washing device, 7-switch valve, 8-air filter device, 9-negative pressure fan, 10-air pipe, 11-bracket, 12-discharge box, 13-discharge motor, 14-slide valve, 15-conveying screw, 16-discharge opening, 17-discharge opening, 18-valve opening, 61-air inlet pipe, 62-lower box, 63-upper box, 64-charge opening, 65-air outlet seat, 66-first filter cylinder, 67-air outlet, 68-air outlet, 69-solid particles, 81-first lower filter box, 82-second lower filter box, 83-upper filter box, 84-first grid, 85-a first box cover, 86-a second grid, 87-a second box cover, 88-a third grid, 89-a third box cover, 90-an air inlet flange, 91-an air outlet flange, 92-a first air passing hole, 93-a second air passing hole, 94-a second filter cylinder, 95-a third filter cylinder, 96-an observation window, 97-a first circular truncated cone, 98-a second circular truncated cone, 99-a ring sleeve and 100-a rib.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a ventilation and air conditioning circulation purification device for a hospital building according to an embodiment of the present invention; the invention provides a circulating purification device of a ventilation air conditioner of a hospital building, which comprises a solid air washing device 6 and an air filtering device 8 which are communicated, wherein the input end of the solid air washing device 6 is connected to an air outlet 2 of a ventilation area 1 of the hospital building, the output end of the air filtering device 8 is connected to an air inlet 3 of the ventilation area 1 of the hospital building, the solid air washing device 6 is used for purifying primary exhaust air through solid particles 69 and outputting secondary exhaust air to the air filtering device 8, and the air filtering device 8 is used for filtering the secondary exhaust air and re-conveying clean air to the ventilation area 1 of the hospital building. In the embodiment, the exhaust air of the hospital building is introduced into the solid air washer 6, the exhaust air of the hospital building is sterilized by utilizing the solid particle adsorption and fluidized bed principle, the solid particles 69 are a mixture of quartz sand and activated carbon particles, the quartz sand can flow by introducing air into the quartz sand (fluidized bed principle), the activated carbon particles can effectively adsorb microorganisms such as viruses in the gas, the activated carbon can fully contact with the air flowing through the quartz sand by flowing and dispersing in the quartz sand, and meanwhile, the quartz sand has the virus adsorption capacity; the grain size range of the quartz sand grains is [0.25, 0.35] mm, dust is removed, and the dust in the quartz sand is prevented from floating along with air and entering the next procedure; when a small amount of dust enters the next process, the dust, PM2.5/PM10, microorganisms, aerosol and the like remained in the air are gradually cleaned through two-stage filtration of the air filtering device 8.
Referring to fig. 1, fig. 1 is a schematic view of an application flow structure of a ventilation and air conditioning circulation purification device for a hospital building according to an embodiment of the present invention; in the above mentioned ventilation air-conditioning circulation purification device for hospital buildings, as a preferred scheme, an exhaust valve 4 and an exhaust fan 5 are sequentially arranged between the exhaust outlet 2 and the solid gas washing device 6, the solid gas washing device 6 is communicated with the gas filtering device 8 through an air pipe 10, and is provided with a switch valve 7, and a negative pressure fan 9 is arranged between the gas filtering device 8 and the air inlet 3. In this embodiment, can collocate hospital air conditioning system and use, be about to connect exhaust outlet 2 at hospital building air conditioning system's exhaust end, connect air intake 3 at hospital building air conditioning system's inlet end.
Referring to fig. 3, fig. 4 and fig. 7, fig. 3 is a schematic diagram of an overall structure of a solid gas washing device 6 of a ventilation and air-conditioning circulation and purification device for a hospital building according to an embodiment of the present invention, fig. 4 is a schematic diagram of a cut-away overall structure of the solid gas washing device 6 of the ventilation and air-conditioning circulation and purification device for the hospital building according to an embodiment of the present invention, and fig. 7 is a schematic diagram of a cross-sectional structure of the solid gas washing device 6 of the ventilation and air-conditioning circulation and purification device for the hospital building according to an embodiment of the present invention; in the above mentioned ventilation and air conditioning circulation purification device for hospital building, as a preferable scheme, the solid gas-washing device 6 comprises an upper box 63, a lower box 62 and an air-diffusing exhaust 67, the upper box 63 and the lower box 62 are spliced into a sealed cavity, the input end of the air-diffusing exhaust 67 is located outside the lower box 62 and is communicated with the air outlet 2 of the ventilation area 1, the output end of the air-diffusing exhaust 67 is located at the inner bottom of the lower box 62, the lower box 62 is filled with solid particles 69, and the top of the upper box 63 is communicated with the air filtering device 8. The lower box 62 is mounted on the ground or any floor slab via the bracket 11.
In the above-mentioned ventilation and air-conditioning circulation purification device for hospital buildings, preferably, an exhaust seat 65 is provided on the top of the upper box 63, a first filter cartridge 66 is mounted on the exhaust seat 65, and the bottom of the first filter cartridge 66 is located inside the upper box 63.
Referring to fig. 5, fig. 5 is a schematic view of an overall structure of a ventilation and air conditioning circulation purification device 67 for a hospital building according to an embodiment of the present invention; in the above mentioned circulation purification device for ventilation and air conditioning in hospital building, as a preferred scheme, the input end of the air exhaust 67 is provided with an air inlet pipe 6110, the air inlet pipe 6110 is communicated with the air outlet 2 of the ventilation area 1, the output end of the air exhaust 67 comprises a plurality of pipes with closed ends, and a plurality of air exhaust holes 68 are arranged below each closed pipe.
In other embodiments of the present invention, the exhaust holes 68 under each closed pipe of the exhaust vent 67 can be opened at 45 ° on both sides under the pipe, so as to better generate the quartz sand flowing effect.
In the above mentioned ventilation and air conditioning circulation purification device for hospital buildings, as a preferable scheme, the solid particles 69 filled in the lower box 62 are a mixture of quartz sand and activated carbon, wherein the volume ratio of the quartz sand to the activated carbon is 3: 1. the total volume ratio of the quartz sand to the activated carbon particles is 3: based on quartz sand, according to the principle of a fluidized bed, when air is introduced into the quartz sand, the quartz sand can flow like water, and the air overflows the surface of quicksand; some activated carbon is dispersed in the quartz sand, and the activated carbon has good adsorption capacity on PM2.5/PM10, microorganisms and aerosol, so that the virus content and the virus aerosol in the exhaust air are reduced. Most of the sand floating with the overflowed air falls back into the lower box 62 under the action of its own weight, and the sand remaining in the air is filtered by the first filter cartridge 66 and retained in the box of the solid gas-washing device 6. The quartz sand and the activated carbon particles are replaced after being used for a period of time, and the replaced quartz sand and the replaced activated carbon particles can be reused after being placed and cooled for a period of time through high-temperature treatment.
In the above mentioned ventilation air-conditioning circulation purification device for hospital buildings, as an optimal scheme, the grain size of the quartz sand is [0.25, 0.35] mm, and the grain size of the activated carbon is [2, 5] mm. In this embodiment, the mesh size of the first filter cartridge 66 is not less than 70 meshes, and the mesh size corresponding to the 70 mesh screen is 0.18mm, so that quartz sand particles can be completely removed.
In the above-mentioned ventilation and air-conditioning circulation purification device for hospital buildings, preferably, the lower box 62 is provided with the discharge box 12, the upper box 63 is provided with the charging opening 64, the upper part of the discharge box 12 is open and is communicated with the lower box 62, and the connection part of the discharge box 12 and the lower box 62 is provided with the gate valve 14.
Referring to fig. 6, fig. 6 is a schematic view of the general structure of a discharge box 12 of a circulating purification device for ventilation and air conditioning of a hospital building according to an embodiment of the present invention; in the above mentioned ventilation air-conditioning circulation purification device for hospital buildings, as a preferred scheme, a conveying screw 15 is arranged in the discharge box 12, a discharge motor 13 is arranged outside one end of the discharge box 12, a discharge opening 16 is arranged at the other end of the discharge box, and the output end of the discharge motor 13 is connected with the conveying screw 15.
In the above-mentioned ventilation air-conditioning circulation purification device for hospital buildings, as an optimal solution, the discharge opening 17 has been seted up at the top of discharge box 12, valve port 18 has been seted up on gate valve 14, and the discharge opening 17 is unanimous with valve port 18 size, and the discharge box 12 top outside is seted up slottedly, and the inboard certain distance that extends, the distance that the discharge box 12 top inwards extends is greater than the width of discharge opening 17, and the discharge box 12 is inserted from the groove to gate valve 14, and the distance of valve port 18 edge to gate valve 14 lateral surface is greater than the valve port 18 width.
Referring to fig. 8, 9 and 10, fig. 8 is a schematic diagram of an overall structure of an air filtering device 8 of a ventilation and air conditioning circulation and purification device for a hospital building according to an embodiment of the present invention, fig. 9 is a schematic diagram of an explosion structure of the air filtering device 8 of the ventilation and air conditioning circulation and purification device for a hospital building according to an embodiment of the present invention, and fig. 10 is a schematic diagram of a cross-sectional structure of the air filtering device 8 of the ventilation and air conditioning circulation and purification device for a hospital building according to an embodiment of the present invention; in the above-mentioned ventilation air-conditioning circulation purification device for hospital buildings, as a preferable scheme, the air filtering device 8 includes a first lower filter box 81, a second lower filter box 82 and an upper filter box 83, the upper filter box 83 includes a first grid 84, a second grid 86 and a third grid 88 which are independent from each other, the bottom of the upper filter box 83 is hermetically connected with the first lower filter box 81 and the second lower filter box 82, the first grid 84, the first lower filter box 81, the second grid 86, the second lower filter box 82 and the third grid 88 are sequentially communicated, a second filter cartridge 94 and a third filter cartridge 95 are respectively arranged between the first lower filter box 81 and the second grid 86 and between the second lower filter box 82 and the third grid 88, an air inlet flange 90 is arranged on the outer side wall of the first grid 84, an air outlet flange 91 is arranged on the outer side wall of the third grid 88, the air inlet flange 90 is communicated with the switch valve 7, and the air outlet flange 91 is communicated with the negative pressure fan 9. In this embodiment, the mesh size of the second filter cartridge 94 is not less than 120, the mesh size corresponding to the 120 mesh filter is 0.106mm, the mesh size of the third filter cartridge 95 is not less than 270 mesh, and the mesh size corresponding to the 270 mesh filter is 0.0450 mm.
In the above-mentioned ventilation and air-conditioning circulation purification device for hospital buildings, preferably, the first grid 84 has a first air passing hole 92 at the bottom thereof, the second grid 86 has a second filter cartridge 94 at one side thereof and a second air passing hole 93 at the other side thereof, the second filter cartridge 94 has a bottom thereof located inside the first lower filter box 81, the third grid 88 has a third filter cartridge 95 at the bottom thereof, and the second filter cartridge 94 has a bottom thereof located inside the second lower filter box 82.
In the above mentioned circulating purification device for ventilation air-conditioning of hospital building, as a preferred scheme, the second filter cartridge 94 and the third filter cartridge 95 are installed through a step hole, the step hole includes a first circular truncated cone 97 and a second circular truncated cone 98 which are sequentially arranged from bottom to top, the inner diameter of the second circular truncated cone 98 is larger than the inner diameter of the first circular truncated cone 97, the second filter cartridge 94 and the third filter cartridge 95 both include a cartridge body and a flange 100, the cartridge body is a filter screen, the flange 100 is fixedly arranged at the upper end of the cartridge body, the outer diameter of the cartridge body is in transition fit with the inner diameter of the first circular truncated cone 97, the outer diameter of the flange 100 is larger than the inner diameter of the first circular truncated cone 97 and smaller than the inner diameter of the second circular truncated cone 98, the flange 100 is pressed on the upper end face of the first circular truncated cone 97 by a ring sleeve 99, the ring sleeve 99 includes a large end and a small end, the outer diameter of the large end is larger than the inner diameter of the second circular truncated cone 98, and the outer diameter of the small segment is not larger than the inner diameter of the second circular truncated cone 98.
In the above mentioned ventilation air-conditioning circulation purification device for hospital buildings, as a preferred scheme, the outer circular surface of the small end of the ring sleeve 99 is provided with an external thread, the inner circular surface of the second circular table 98 is provided with an internal thread, and the ring sleeve 99 is connected with the second circular table 98 through a thread.
In the above-mentioned ventilation and air-conditioning circulation purification device for hospital buildings, as a preferable scheme, a first box cover 85, a second box cover 87 and a third box cover 89 are respectively arranged above the first grid 84, the second grid 86 and the third grid 88, the first box cover 85, the second box cover 87 and the third box cover 89 are respectively provided with an observation window 96, the observation window 96 is made of transparent glass, and the first box cover 85, the second box cover 87 and the third box cover 89 are respectively connected with the first grid 84, the second grid 86 and the third grid 88 in a sealing manner.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing detailed description of the embodiments of the present invention has been presented for purposes of illustration and description, and is intended to be exemplary only and is not intended to be exhaustive or to limit the invention to the precise forms disclosed; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a hospital's building ventilation air conditioner circulation purifier, its characterized in that, is including the solid air washer and the gas filter device that are linked together, the input of solid air washer is connected to the air exit of hospital's building ventilation region, the output of gas filter device is connected to the air intake of hospital's building ventilation region, solid air washer is used for airing exhaust through solid particle and purifies to export the secondary and air exhaust for the gas filter device, the gas filter device is used for airing exhaust the secondary and filtering, and carry clean air again for the ventilation region of hospital's building.
2. The circulating purification device for the ventilation air conditioner in the hospital building according to claim 1, wherein an exhaust valve and an exhaust fan are sequentially arranged between the exhaust outlet and the solid air washing device, the solid air washing device is communicated with the air filtering device through an air pipe and is provided with a switch valve, and a negative pressure fan is arranged between the air filtering device and the air inlet.
3. The circulating purification device of the hospital building ventilation air conditioner as claimed in claim 1, wherein the solid air washing device comprises an upper box body, a lower box body and an air exhaust vent, the upper box body and the lower box body are mutually spliced to form a sealed cavity, the air exhaust vent input end is positioned outside the lower box body and communicated with the air outlet of a ventilation area, the air exhaust vent output end is positioned at the inner bottom of the lower box body, the lower box body is filled with solid particles, and the top of the upper box body is communicated to the air filtering device;
preferably, an exhaust seat is arranged at the top of the upper box body, a first filter cartridge is mounted on the exhaust seat, and the bottom of the first filter cartridge is located inside the upper box body.
4. The circulating purification device for the ventilation air conditioner in the hospital building as claimed in claim 3, wherein the air inlet pipe is arranged at the air exhaust and exhaust end, the air inlet pipe is communicated with the air outlet of the ventilation area, the air exhaust and exhaust end comprises a plurality of closed-end pipelines, and a plurality of exhaust holes are arranged below each closed pipeline.
5. The circulating purification device for the ventilation and air conditioning of the hospital building according to claim 3, wherein the solid particles filled in the lower box body are a mixture of quartz sand and activated carbon, wherein the volume ratio of the quartz sand to the activated carbon is 3: 1;
preferably, the grain size of the quartz sand ranges from [0.25, 0.35] mm, and the grain size of the activated carbon ranges from [2, 5] mm.
6. The circulating purification device for the ventilation air conditioner in the hospital building as claimed in claim 3, wherein a discharge box is arranged below the lower box body, the upper box body is provided with a charging opening, the upper part of the discharge box is open and communicated with the lower box body, and a gate valve is arranged at the joint of the discharge box and the lower box body;
preferably, a conveying screw is arranged in the discharge box, a discharge motor is arranged outside one end of the discharge box, a discharge opening is formed in the other end of the discharge box, and the output end of the discharge motor is connected with the conveying screw;
preferably, the top of the discharge box is provided with a feed opening, the gate valve is provided with a valve port, the feed opening is the same as the valve port in size, the outer side of the top of the discharge box is provided with a groove, the inner side of the discharge box extends for a certain distance, the distance extending inwards from the top of the discharge box is greater than the width of the feed opening, the gate valve is inserted into the discharge box from the groove, and the distance from the edge of the valve port to the outer side surface of the gate valve is greater than the width of the valve port.
7. The circulating purification device of the ventilation air conditioner in the hospital building according to claim 2, the air filtering device comprises a first lower filtering box, a second lower filtering box and an upper filtering box, the upper filtering box comprises a first grid, a second grid and a third grid which are mutually independent, the bottom of the upper filter box is hermetically connected with the first lower filter box and the second lower filter box, the first grid, the first lower filter box, the second grid, the second lower filter box and the third grid are sequentially communicated, a second filter cylinder and a third filter cylinder are respectively arranged between the first lower filter box and the second grid and between the second lower filter box and the third grid, the outer side wall of the first grid is provided with an air inlet flange, the outer side wall of the third grid is provided with an air outlet flange, the air inlet flange is communicated to the switch valve, and the air outlet flange is communicated to the negative pressure fan.
8. The circulating purification device for the ventilation and air conditioning of the hospital building as claimed in claim 7, wherein the first grid bottom is provided with a first air passing hole, one side of the second grid bottom is provided with the second filter cartridge, the other side of the second grid bottom is provided with a second air passing hole, the bottom of the second filter cartridge is positioned in the first lower filter box, the bottom of the third grid bottom is provided with a third filter cartridge, and the bottom of the second filter cartridge is positioned in the second lower filter box.
9. The circulating purification device of the ventilation air conditioner in the hospital building according to claim 8, the second filter cylinder and the third filter cylinder are both arranged through a step hole, the step hole comprises a first round table and a second round table which are arranged from bottom to top in sequence, the inner diameter of the second round table is larger than that of the first round table, the second filter cylinder and the third filter cylinder both comprise cylinder bodies and flanges, the cylinder body is a filter screen, the flange is fixedly arranged at the upper end of the cylinder body, the outer diameter of the cylinder body is in transition fit with the inner diameter of the first round table, the outer diameter of the flange is larger than the inner diameter of the first round table and smaller than the inner diameter of the second round table, the flange is pressed on the upper end surface of the first round table through a ring sleeve, the ring sleeve comprises a large end and a small end, the outer diameter of the large end is larger than the inner diameter of the second circular truncated cone, and the outer diameter of the small section is not larger than the inner diameter of the second circular truncated cone;
preferably, the outer circle surface of the small end of the ring sleeve is provided with an external thread, the inner circle surface of the second circular table is provided with an internal thread, and the ring sleeve is connected with the second circular table through a thread.
10. The circulating purification device for the ventilation air conditioner in the hospital building as claimed in claim 7, wherein a first box cover, a second box cover and a third box cover are respectively arranged above the first grid, the second grid and the third grid, the first box cover, the second box cover and the third box cover are respectively provided with an observation window, the observation window is made of transparent glass, and the first box cover, the second box cover and the third box cover are respectively connected with the first grid, the second grid and the third grid in a sealing manner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210029424.5A CN114294749B (en) | 2022-01-12 | 2022-01-12 | Circulating purification device for ventilation air conditioner of hospital building |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210029424.5A CN114294749B (en) | 2022-01-12 | 2022-01-12 | Circulating purification device for ventilation air conditioner of hospital building |
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| JPH1019304A (en) * | 1996-07-04 | 1998-01-23 | Kongo Kk | Container equipped with air conditioning function |
| CN201493034U (en) * | 2009-08-14 | 2010-06-02 | 何新华 | Air purifier |
| CN206989353U (en) * | 2017-07-17 | 2018-02-09 | 牛子元 | A kind of removable PM2.5 air cleaning unit |
| CN111167287A (en) * | 2020-02-18 | 2020-05-19 | 陈瑞德 | Medical air purification device |
| CN112161346A (en) * | 2020-10-15 | 2021-01-01 | 四川纯阳润森节能环保有限公司 | Air purification device for hospital |
-
2022
- 2022-01-12 CN CN202210029424.5A patent/CN114294749B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1019304A (en) * | 1996-07-04 | 1998-01-23 | Kongo Kk | Container equipped with air conditioning function |
| CN201493034U (en) * | 2009-08-14 | 2010-06-02 | 何新华 | Air purifier |
| CN206989353U (en) * | 2017-07-17 | 2018-02-09 | 牛子元 | A kind of removable PM2.5 air cleaning unit |
| CN111167287A (en) * | 2020-02-18 | 2020-05-19 | 陈瑞德 | Medical air purification device |
| CN112161346A (en) * | 2020-10-15 | 2021-01-01 | 四川纯阳润森节能环保有限公司 | Air purification device for hospital |
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| CN114294749B (en) | 2023-06-23 |
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