CN117490167B - Exhaust system for clean operating room - Google Patents
Exhaust system for clean operating room Download PDFInfo
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- CN117490167B CN117490167B CN202410002857.0A CN202410002857A CN117490167B CN 117490167 B CN117490167 B CN 117490167B CN 202410002857 A CN202410002857 A CN 202410002857A CN 117490167 B CN117490167 B CN 117490167B
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- air
- exhaust
- mixing
- closing plate
- operating room
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- 238000002156 mixing Methods 0.000 claims abstract description 106
- 238000001914 filtration Methods 0.000 claims abstract description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 45
- 238000007789 sealing Methods 0.000 claims description 27
- 238000000889 atomisation Methods 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 claims description 7
- 230000008020 evaporation Effects 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 210000003141 lower extremity Anatomy 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 4
- 238000009834 vaporization Methods 0.000 description 4
- 230000008016 vaporization Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009297 electrocoagulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
- F24F3/167—Clean rooms, i.e. enclosed spaces in which a uniform flow of filtered air is distributed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
- F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1433—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses an exhaust system for a clean operating room, which relates to the technical field of exhaust systems and comprises exhaust outlets symmetrically arranged at bottom angle positions on two sides of the operating room, and an exhaust mechanism connected with the exhaust outlets, wherein an air outlet filtering device is arranged at the exhaust outlets. According to the invention, the air in the clean operating room and the air in the air inlet system can be introduced into the air mixing assembly for full mixing, then a part of mixed air is adaptively discharged, the other part of mixed air is returned into the operating room again, the air energy in the clean operating room is recovered, and the energy consumption of the system is reduced.
Description
Technical Field
The invention relates to the technical field of exhaust systems, in particular to an exhaust system for a clean operating room.
Background
As a special space of a hospital, doctors often perform electrotomy in the operating room, and in such operations, high-frequency electrotomes, high-frequency electric forceps, high-frequency electrocoagulation and other operation tools are often used to cut and stop bleeding on body tissues of patients, a large amount of electrotome steam is released in the process, the main components of the electrotome steam are 95% of water, 5% of the electrotome steam are organic matters and inorganic matters, particulate matters and microorganisms, and even bacteria, mycobacteria, fungi and viruses are contained, therefore, the air environment of the operating room needs to be systematically controlled, the sterile environment needs to be ensured, and the operation patients are ensured not to be infected, wherein an exhaust system is an important component of the air control of the operating room.
In many large hospitals, a plurality of operating rooms are provided, some operating rooms are even hundreds of operating rooms, each operating room is provided with an exhaust fan, and when the operating rooms are used in a plurality of modes at the same time, the total exhaust amount of the operating rooms can be large, and the operating rooms are directly exhausted to cause energy waste.
Disclosure of Invention
The invention aims to provide an exhaust system for a clean operating room, which solves the problems in the background technology.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
The invention provides an exhaust system for a clean operating room, which comprises exhaust outlets symmetrically arranged at bottom angle positions of two sides of the operating room, and an exhaust mechanism connected with the exhaust outlets, wherein an air outlet filtering device is arranged at the exhaust outlets;
The exhaust mechanism further comprises an air mixing assembly; the air mixing assembly comprises a columnar shell arranged in a partition layer above an operating room ceiling, an annular outer mixing cavity and a columnar inner mixing cavity are sequentially formed in the columnar shell from outside to inside, two partition plates are symmetrically arranged in the annular outer mixing cavity, the annular outer mixing cavity is divided into two mixing channels which are adjacent end to end by the two partition plates, the two ends of the mixing channels are respectively a head end and a tail end, an exhaust inlet is arranged on the side wall of the columnar shell at the head end of the mixing channel, an air mixing inlet communicated with the columnar inner mixing cavity is arranged on the columnar shell at the tail end of the mixing channel, an air inlet is arranged on the side wall of the columnar shell at the middle part of the mixing channel, an air deflector assembly capable of guiding air of the air inlet towards the tail end of the mixing channel is arranged in the mixing channel at the air inlet, an air outlet pipe is arranged at the bottom of the columnar inner mixing cavity, an exhaust pipe is coaxially arranged in the air outlet pipe, the top end of the exhaust pipe penetrates through the top wall of the columnar shell and extends to the position above the columnar shell, and an air adjusting valve is arranged on the exhaust pipe;
a connecting pipeline is connected between the exhaust inlet and the corresponding exhaust outlet, and an exhaust fan assembly is arranged in the connecting pipeline; the air inlet is connected with an air inlet pipe of the air inlet system.
The exhaust mechanism further comprises a hydrogen peroxide cold evaporation assembly, and the hydrogen peroxide cold evaporation assembly can spray dry atomized hydrogen peroxide into a mixing channel between the exhaust inlet and the air inlet.
Further, the partition plate is arc-shaped, the inner cambered surface of the partition plate faces one side of the corresponding mixing channel, and the outer cambered surface of the partition plate is tangent to the inner side surface of the columnar inner mixing cavity.
Further, air deflector assembly includes sealed frame, sealed frame with the air intake adaptation, sealed frame is including connecting first closing plate and the second closing plate at air intake upper edge and lower limb to and connect first closing plate and the third closing plate that air intake one side was kept away from to the second closing plate, first closing plate, second closing plate and third closing plate are hugged closely in the mixed passageway inner wall, air deflector assembly still includes the aviation baffle, and the one end of aviation baffle is fixed with the axis of rotation, the axis of rotation is vertical to be set up and is close to air inlet one side of airing exhaust, and the both ends of axis of rotation with first closing plate and second closing plate rotate to be connected, the side is hugged closely in first closing plate and second closing plate about the aviation baffle, be provided with the arc baffle with the axis of rotation adaptation between first closing plate and the second closing plate, the top of axis of rotation runs through first closing plate and column casing fixedly connected with step motor.
Further, the top and bottom surfaces of the columnar internal mixing chamber are inclined downward toward the center.
Further, the columnar inner mixing cavity at one side of the mixed air inlet is internally provided with air guide plates, the upper side and the lower side of the two air guide plates are respectively connected with the top surface and the bottom surface of the columnar inner mixing cavity, the air guide plates are arc-shaped, and the two ends of the air guide plates extend to be connected with the air outlet pipe and the inner wall of the columnar inner mixing cavity.
Further, the cold evaporation of hydrogen peroxide subassembly includes the casing, form axial atomizing chamber in the casing, the atomizing intracavity is provided with filter screen, filter screen is with atomizing chamber divide into upper portion atomizing chamber and lower part atomizing chamber, upper portion atomizing intracavity middle part is provided with a high-pressure air inlet pipe, the outside of high-pressure air inlet pipe bottom evenly is provided with the fumarole, the bottom in lower part atomizing chamber is provided with the reservoir, atomizing nozzle is installed to the reservoir top, atomizing nozzle's bottom is connected with a siphon passageway that extends to in the reservoir, atomized hydrogen peroxide export with mixing channel intercommunication on the casing of upper portion atomizing chamber one side.
Compared with the prior art, the above technical scheme has the following beneficial effects:
according to the invention, the air in the clean operating room and the air in the air inlet system can be introduced into the air mixing assembly for full mixing, and then a part of mixed air is discharged in an adaptive manner, so that the other part of mixed air is returned into the operating room again, the air energy in the clean operating room is recovered, and the energy consumption of the system is reduced.
In addition, this technical scheme is in the air mixing process, can make exhaust air and new trend all flow towards same direction through the special design of mixing channel, on the one hand can make exhaust air and new trend mutually support to reduce the windage, reduce the system energy consumption, on the other hand can show the improvement air flow rate under the same energy consumption, i.e. the gas circulation speed in the operating room, in order to improve the air quality in the operating room.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a wind mixing assembly according to the present invention;
FIG. 3 is a schematic view of the internal structure of the air mixing assembly of the present invention;
FIG. 4 is a schematic view of the structure of the air deflection assembly of the present invention;
FIG. 5 is a schematic top view of the air mixing assembly of the present invention;
FIG. 6 is a schematic view of the A-A structure of FIG. 5;
Fig. 7 is a schematic view of the hydrogen peroxide cold vaporization assembly of the present invention.
In the figure:
100. an air outlet; 200. an air outlet filtering device;
300. A cylindrical housing; 310. an annular outer mixing chamber; 311. a mixing channel; 311a, head end; 311b, tail end; 320. a columnar internal mixing chamber; 330. a partition plate; 340. an exhaust inlet; 350. a mixed wind inlet; 360. an air inlet; 370. a connecting pipe; 380. an air guiding plate;
400. An air deflector assembly; 410. sealing the frame; 411. a first sealing plate; 412. a second sealing plate; 413. a third sealing plate; 420. an air deflector; 430. a rotating shaft; 440. an arc baffle; 450. a stepping motor;
500. An air outlet pipe; 600. an exhaust pipe;
700. A hydrogen peroxide cold vaporization assembly; 710. a housing; 720. a filter screen; 730. an upper atomizing chamber; 740. a lower atomizing chamber; 750. a high pressure air inlet pipe; 760. a liquid storage tank; 770. an atomizing nozzle; 780. a siphon channel; 790. atomized hydrogen peroxide discharge pipe.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
Referring to fig. 1-7, the present invention provides an exhaust system for a clean operating room, which comprises exhaust outlets 100 symmetrically arranged at bottom corners of two sides of the operating room, and an exhaust mechanism connected with the exhaust outlets 100, wherein an air outlet filter 200 is installed at the exhaust outlets 100; the air exhaust system is mainly matched with the air inlet system, so that air in a clean operating room can be circulated in a certain positive pressure environment, and when the air exhaust system is used, the air exhaust mechanism filters air in the clean operating room through the air outlet 100 and then is exhausted to the outside through the air outlet filter device 200.
Considering that the air in the clean operating room is heated or cooled, if the air in the operating room is directly discharged to the outside, the energy consumption of the system is increased, and the waste of resources is caused.
The exhaust mechanism comprises an air mixing assembly, the air mixing assembly comprises a columnar shell 300 arranged in a partition layer above an operating room ceiling, an annular outer mixing cavity 310 and a columnar inner mixing cavity 320 are sequentially formed inside the columnar shell 300 from outside to inside, two baffle plates 330 are symmetrically arranged in the annular outer mixing cavity 310, the annular outer mixing cavity 310 is divided into two mixing channels 311 which are adjacent end to end by the two baffle plates 330, two ends of the mixing channels 311 are respectively a head end 311a and a tail end 311b, an exhaust inlet 340 is formed in the side wall of the columnar shell 300 at the head end 311a of the mixing channel 311, an air inlet 350 communicated with the columnar inner mixing cavity 320 is formed in the columnar shell 300 at the tail end 311b of the mixing channel 311, an air inlet 360 is formed in the side wall of the columnar shell 300 in the middle of the mixing channel 311, an air deflector assembly 400 capable of guiding air of the air inlet 360 towards the tail end 311b of the mixing channel 311 is arranged in the mixing channel 310, an air outlet pipe 500 is arranged at the bottom of the columnar inner mixing cavity 320, an inner coaxial pipe 500 is arranged at the inner end of the air outlet pipe 500, an exhaust valve 600 is arranged at the top end of the air outlet pipe 600 and extends to the position of the air outlet pipe 600 (the exhaust valve 600 is arranged at the position which is not above the exhaust valve 300 and extends above the exhaust pipe 600);
A connection pipe 370 is connected between the exhaust inlet 340 and the corresponding exhaust outlet 100, and an exhaust fan assembly (not shown) is installed in the connection pipe 370; the air inlet 360 is connected to an air inlet pipe (not shown) of the air inlet system.
According to the technical scheme, the air in the clean operating room and the air in the air inlet system can be introduced into the operating room through the air mixing assembly to be fully mixed, and then a part of mixed air is discharged in an adaptive mode, so that the other part of mixed air is returned to the operating room again, and the normal positive pressure environment in the operating room is maintained; in addition, in the air mixing process, the special design of the mixing channel 311 can enable the exhaust air and the fresh air to flow in the same direction, so that on one hand, the exhaust air and the fresh air can be mutually matched, the wind resistance is reduced, the energy consumption of the system is reduced, and on the other hand, the air flow rate, namely the air circulation speed in an operating room, can be obviously improved under the same energy consumption, so that the air quality in the operating room is improved.
In a specific process, when the air conditioner is used, the exhaust fan assembly in the connecting pipeline 370 is started, air in a clean operating room is sucked into the connecting pipeline 370 from the exhaust port 100, and when the air enters the connecting pipeline 370, the air is purified through the air outlet filter device 200, wherein the air outlet filter device 200 is in the prior art, for example, the air conditioner can be activated carbon;
When air is sucked into the connecting pipeline 370, the air flows along the connecting pipeline 370 and enters the mixing channel 311 from the air exhaust inlet 340, the air entering the mixing channel 311 flows towards the tail end 311b of the mixing channel 311 to form return air, in the process, the air inlet pipe of the air inlet system can synchronously guide fresh air into the mixing channel 311 through the air inlet 360, the fresh air also flows towards the tail end 311b of the mixing channel 311 through the guiding function of the air deflector assembly 400 after entering the mixing channel 311, the return air and the fresh air flow towards the same direction, so that the energy consumption of the system is increased, the wind resistance of the return air and the fresh air can be reduced due to the mutual matching of the return air and the fresh air, the energy consumption of the system is reduced, and the air flow rate, namely the air circulation speed in an operating room can be obviously improved under the same energy consumption, so that the air quality in an operating room is improved;
When the return air and the fresh air flow to the tail end 311b of the mixing channel 311, the return air and the fresh air can be mixed with each other to form a mixed air, so as to recycle the temperature of the return air, and then the mixed air enters the columnar inner mixing cavity 320 from the mixed air inlet 350, at this time, two mixed air are mixed and enter the air outlet pipe 500 at the same time, one part of the mixed air is discharged to the outside from the air outlet pipe 600, and the other part of the mixed air is discharged to the air supply ceiling from the air outlet pipe 500, and in this process, the air valve is adjusted to adjust the flow of the mixed air discharged from the air outlet pipe 600 so as to maintain the normal positive pressure environment in the operating room. The air valve is the prior art, and the specific structure and principle of the air valve are not explained here too much.
Further, in order to ensure the quality of return air, the air quality is prevented from being reduced after the return air and fresh air are mixed. The air exhaust mechanism further comprises a hydrogen peroxide cold vaporization assembly 700, wherein the hydrogen peroxide cold vaporization assembly 700 can spray dry atomized hydrogen peroxide into the mixing channel 311 between the air exhaust inlet 340 and the air inlet 360. The air return is sterilized before being mixed with the fresh air, and the air return can carry part of dry atomized hydrogen peroxide to sterilize the fresh air after being mixed with the fresh air, so that the air quality in an operating room is improved.
In this embodiment, the partition 330 is arc-shaped, the intrados of the partition 330 faces the corresponding mixing channel 311, and the extrados of the partition 330 is tangent to the inner side of the cylindrical inner mixing chamber 320. The design can better guide the air entering from the exhaust inlet 340 to flow in the mixing channel 311, and can make two mixed air flow in a rotary way in the columnar inner mixing cavity 320 after entering the columnar inner mixing cavity 320 from the tangential direction, so as to avoid the two mixed air from collision with each other, thereby causing energy loss.
In this embodiment, the air deflector assembly 400 includes a sealing frame 410, the sealing frame 410 corresponds to the air inlet 360, the sealing frame 410 includes a first sealing plate 411 and a second sealing plate 412 connected to the upper edge and the lower edge of the air inlet 360, and a third sealing plate 413 connected to the first sealing plate 411 and the second sealing plate 412 and far away from one side of the air inlet 360, the first sealing plate 411, the second sealing plate 412 and the third sealing plate 413 are all clung to the inner wall of the mixing channel 311, the air deflector assembly 400 further includes an air deflector 420, one end of the air deflector 420 is provided with a rotating shaft 430, the rotating shaft 430 is vertically disposed on one side of the air inlet 360 near the air exhaust inlet 340, two ends of the rotating shaft 430 are rotationally connected with the first sealing plate 411 and the second sealing plate 412, the upper side and the lower side of the air deflector 420 are clung to the first sealing plate 411 and the second sealing plate 412, an arc-shaped baffle 440 adapted to the rotating shaft 430 is disposed between the first sealing plate 411 and the second sealing plate 412, and the top end of the air deflector assembly 430 penetrates through the first sealing plate 411 and the cylindrical housing 710 to fixedly connect with a stepping motor 450.
Based on the above design, the rotation angle of the rotation shaft 430 can be driven and controlled by the stepping motor 450 during use, so as to control the rotation angle of the guide plate between the first sealing plate 411 and the second sealing plate 412, thereby realizing the adjustment of the mixing ratio of the return air and the fresh air, that is, when the guide plate rotates around the rotation shaft 430 towards the air inlet 360, the flow rate of the fresh air is increased and the flow rate of the return air is correspondingly decreased during the mixing of the fresh air and the return air, so that the mixing ratio of the return air is decreased in unit time, and when the guide plate rotates around the rotation shaft 430 towards the side far from the air inlet 360, the mixing ratio of the return air is increased in unit time; thus, when the operating room is performing the complex operation, the power of the exhaust fan can be increased to increase the exhaust speed due to the heavy peculiar smell in the operating room, and the guide plate is driven to rotate around the rotating shaft 430 towards the side far away from the air inlet 360 by the stepping motor 450, so that the proportion of the return air in the mixed air is reduced; when the operating room is in simple operation, the power of the exhaust fan can be reduced and the energy consumption can be reduced because the peculiar smell in the operating room is lighter, and the guide plate is driven to rotate around the rotating shaft 430 towards one side of the air inlet 360 by the stepping motor 450, so that the proportion of return air in the mixed air is increased, and the energy of the return air is fully utilized.
In this embodiment, the top and bottom surfaces of the cylindrical internal mixing chamber 320 are both sloped downward toward the center. The design can enable two mixed air flows downwards after entering the columnar inner mixing cavity 320 and enter the air outlet pipe 500, so that the air exhaust and the air circulation rate in an operating room are improved.
Further, in this embodiment, an air guiding plate 380 is further disposed in the columnar inner mixing chamber 320 at one side of the air mixing inlet 350, the upper and lower sides of the two air guiding plates 380 are respectively connected with the top surface and the bottom surface of the columnar inner mixing chamber 320, the air guiding plates 380 are arc-shaped, and two ends of the air guiding plates 380 extend to be connected with the air outlet pipe 500 and the inner wall of the columnar inner mixing chamber 320. The design can lead two mixed air to spirally enter the air outlet pipe 500 and be mixed, quicken the flow rate of the mixed air entering the air outlet pipe 500 and improve the air circulation rate in an exhaust and operating room.
In this embodiment, the hydrogen peroxide cold evaporation assembly 700 includes a housing 710, an axial atomization cavity is formed in the housing 710, a filter screen 720 is disposed in the atomization cavity, the filter screen 720 divides the atomization cavity into an upper atomization cavity 730 and a lower atomization cavity 740, a high-pressure air inlet pipe 750 is disposed in the middle of the upper atomization cavity 730, air injection holes are uniformly disposed on the outer side of the bottom end of the high-pressure air inlet pipe 750, a liquid storage tank 760 is disposed at the bottom of the lower atomization cavity 740, an atomization nozzle 770 is mounted above the liquid storage tank 760, a siphon channel 780 extending into the liquid storage tank 760 is connected to the bottom of the atomization nozzle 770, and an atomized hydrogen peroxide discharge pipe 790 is disposed on the housing 710 on one side of the upper atomization cavity 730 and is communicated with the mixing channel 311. The invention improves on the basis of atomized hydrogen peroxide, so that atomized particles are smaller, the diffusion range is wider, the concentration of hydrogen peroxide is greatly reduced, and equipment and color steel plates are not corroded. Specifically, when in use, the atomizing nozzle sucks the hydrogen peroxide solution in the liquid storage tank 760 and sprays the hydrogen peroxide solution in an atomizing mode, the sprayed atomized hydrogen peroxide solution enters the upper atomizing cavity 730 and is sputtered by high-pressure air, and dry fog particles lower than 10 microns are rapidly conveyed and diffused into the whole mixing channel 311, so that sterilization is realized, and because the concentration of the dry fog particles is low, the dry fog particles only need a few milliliters of dosage per cubic meter, the dry fog spray nozzle has no corrosion to instruments and meters, computers, metal products and the like in the environment, does not need a heating neutralization process and the like, and is convenient to apply.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. An exhaust system for a clean operating room comprises exhaust outlets symmetrically arranged at the bottom corners of two sides of the operating room, and an exhaust mechanism connected with the exhaust outlets, wherein an air outlet filtering device is arranged at the exhaust outlets;
The air exhaust mechanism is characterized by further comprising an air mixing assembly; the air mixing assembly comprises a columnar shell arranged in a partition layer above an operating room ceiling, an annular outer mixing cavity and a columnar inner mixing cavity are sequentially formed in the columnar shell from outside to inside, two partition plates are symmetrically arranged in the annular outer mixing cavity, the annular outer mixing cavity is divided into two mixing channels which are adjacent end to end by the two partition plates, the two ends of the mixing channels are respectively a head end and a tail end, an exhaust inlet is arranged on the side wall of the columnar shell at the head end of the mixing channel, an air mixing inlet communicated with the columnar inner mixing cavity is arranged on the columnar shell at the tail end of the mixing channel, an air inlet is arranged on the side wall of the columnar shell at the middle part of the mixing channel, an air deflector assembly capable of guiding air of the air inlet towards the tail end of the mixing channel is arranged in the mixing channel at the air inlet, an air outlet pipe is arranged at the bottom of the columnar inner mixing cavity, an exhaust pipe is coaxially arranged in the air outlet pipe, the top end of the exhaust pipe penetrates through the top wall of the columnar shell and extends to the position above the columnar shell, and an air adjusting valve is arranged on the exhaust pipe;
A connecting pipeline is connected between the exhaust inlet and the corresponding exhaust outlet, and an exhaust fan assembly is arranged in the connecting pipeline; the air inlet is connected with an air inlet pipe of the air inlet system;
the exhaust mechanism further comprises a hydrogen peroxide cold evaporation assembly, and the hydrogen peroxide cold evaporation assembly can spray dry atomized hydrogen peroxide into a mixing channel between the exhaust inlet and the air inlet;
The partition plate is arc-shaped, the inner cambered surface of the partition plate faces one side of the corresponding mixing channel, and the outer cambered surface of the partition plate is tangent to the inner side surface of the columnar inner mixing cavity;
The air deflector assembly comprises a sealing frame, the sealing frame with the air intake adaptation, the sealing frame is including connecting first closing plate and the second closing plate at air intake upper edge and lower limb to and connect first closing plate and second closing plate to keep away from the third closing plate of air intake one side, first closing plate, second closing plate and third closing plate are hugged closely in mixing channel inner wall, the air deflector assembly still includes the aviation baffle, and the one end of aviation baffle is fixed with the axis of rotation, the vertical setting of axis of rotation is close to air intake entry one side, and the both ends of axis of rotation with first closing plate and second closing plate rotate to be connected, the side is hugged closely in first closing plate and second closing plate about the aviation baffle, be provided with the arc baffle with the axis of rotation adaptation between first closing plate and the second closing plate, the top of axis of rotation runs through first closing plate and column casing fixedly connected with step motor.
2. The exhaust system for a clean room of claim 1 wherein the top and bottom surfaces of the cylindrical internal mixing chamber are each sloped downwardly toward the center.
3. The exhaust system for clean operating room according to claim 2, wherein the columnar inner mixing chamber at one side of the air inlet is further provided with air guiding plates, the upper and lower sides of the two air guiding plates are respectively connected with the top surface and the bottom surface of the columnar inner mixing chamber, the air guiding plates are arc-shaped, and the two ends of the air guiding plates extend to be connected with the air outlet pipe and the inner wall of the columnar inner mixing chamber.
4. The exhaust system for a clean operating room according to claim 1, wherein the hydrogen peroxide cold evaporation assembly comprises a housing, an axial atomization cavity is formed in the housing, a filter screen is arranged in the atomization cavity, the filter screen divides the atomization cavity into an upper atomization cavity and a lower atomization cavity, a high-pressure air inlet pipe is arranged in the middle of the upper atomization cavity, air injection holes are uniformly formed in the outer side of the bottom end of the high-pressure air inlet pipe, a liquid storage tank is arranged at the bottom of the lower atomization cavity, an atomization nozzle is arranged above the liquid storage tank, a siphon channel extending into the liquid storage tank is connected to the bottom of the atomization nozzle, and an atomized hydrogen peroxide outlet communicated with the mixing channel is formed in the housing on one side of the upper atomization cavity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410002857.0A CN117490167B (en) | 2024-01-02 | 2024-01-02 | Exhaust system for clean operating room |
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| CN202410002857.0A CN117490167B (en) | 2024-01-02 | 2024-01-02 | Exhaust system for clean operating room |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205403017U (en) * | 2016-03-10 | 2016-07-27 | 上海碳索能源环境服务有限公司 | Air conditioning system |
| CN206261550U (en) * | 2016-09-07 | 2017-06-20 | 汲传波 | Domestic water filtration automatic cleaner |
| CN114087698A (en) * | 2021-11-24 | 2022-02-25 | 泰州市人民医院 | Clean silence air supply system for operating room |
| CN218972809U (en) * | 2022-10-14 | 2023-05-05 | 吴涵 | Green low-carbon fresh air conditioner |
| WO2023246706A1 (en) * | 2022-06-21 | 2023-12-28 | 青岛海尔空调器有限总公司 | Vertical indoor air-conditioning unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7752858B2 (en) * | 2002-11-25 | 2010-07-13 | American Power Conversion Corporation | Exhaust air removal system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205403017U (en) * | 2016-03-10 | 2016-07-27 | 上海碳索能源环境服务有限公司 | Air conditioning system |
| CN206261550U (en) * | 2016-09-07 | 2017-06-20 | 汲传波 | Domestic water filtration automatic cleaner |
| CN114087698A (en) * | 2021-11-24 | 2022-02-25 | 泰州市人民医院 | Clean silence air supply system for operating room |
| WO2023246706A1 (en) * | 2022-06-21 | 2023-12-28 | 青岛海尔空调器有限总公司 | Vertical indoor air-conditioning unit |
| CN218972809U (en) * | 2022-10-14 | 2023-05-05 | 吴涵 | Green low-carbon fresh air conditioner |
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| CN117490167A (en) | 2024-02-02 |
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