CN106678966A - Low-noise modular air purification system - Google Patents

Low-noise modular air purification system Download PDF

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Publication number
CN106678966A
CN106678966A CN201611214870.4A CN201611214870A CN106678966A CN 106678966 A CN106678966 A CN 106678966A CN 201611214870 A CN201611214870 A CN 201611214870A CN 106678966 A CN106678966 A CN 106678966A
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China
Prior art keywords
air
fresh air
fresh
return
blower fan
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CN201611214870.4A
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Chinese (zh)
Inventor
殷晓冬
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Individual
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Priority to CN201611214870.4A priority Critical patent/CN106678966A/en
Publication of CN106678966A publication Critical patent/CN106678966A/en
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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
    • 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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/247—Active noise-suppression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/36—Modules, e.g. for an easy mounting or transport

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Ventilation (AREA)

Abstract

The invention relates to a low-noise modular air purification system. The low-noise modular air purification system comprises a medical exhaust air and fresh air integrated cabinet, a return air processing and air supply ceiling and return air ports, wherein the medical exhaust air and fresh air integrated cabinet is used for feeding fresh air and to-be-exhausted air and exhausting the fresh air and the to-be-exhausted air after processing; the return air processing and air supply ceiling is used for evenly mixing, purifying and filtering the introduced fresh air and return air and exhausting the mixed air in a light turbulence mode; and a medical room and a return air channel communicate through the air return ports so that the return air can be introduced into the return air processing and air supply ceiling. The low-noise modular air purification system can remarkably decrease the rate of postoperative infection and greatly reduce energy consumption; meanwhile, through highly integrated equipment and the modular installation mode, the construction cost and complexity are remarkably reduced, so that the construction cost of operating rooms is remarkably reduced, and the construction period of operating rooms is remarkably shortened; due to the facts that no special machine room or return air pipeline is required and the number of valves is small, the space requirements are reduced remarkably; and besides, noise can be remarkably lowered on the premise that sufficient air volume is ensured.

Description

Low noise block air cleaning system
Technical field
Present invention relates in general to medical ventilation equipment field, in particular to a kind of low noise block purification of air System and a kind of corresponding operating room.
Background technology
Nowadays, 25000 or so, existing hospital of China, because about 40% is built in 1980 in these hospitals, its medical bar Part can not meet modern medical service requirement, therefore there is urgent and large-scale improvement, enlarging task.How to reduce reconstructing and expanding The expense built, is a far reaching target.Additionally, how the national life and health of medical industry relation, shorten hospital Completion time of project, be also a vital task.
As the requirement to medical environment is improved, medical air cleaning system is also being sent out towards high-power, Wind Volume direction Exhibition.However, a key factor for restricting this development trend is maximum noise requirement.According to GB 50333-2013《Hospital is clean Net Surgery Building technology specification》, the noise of I level operating rooms should≤51dB (A), the noise of II, III, IV level operating room should As≤49dB (A).One important sources of the noise of air cleaning system are blower fans, and the noise of blower fan generally speaking and its Power or air quantity are directly proportional.Therefore, just because of this high request to noise so that many is adopted to meet air quantity requirement Exceed maximum allowable noise criteria threshold value with the air cleaning system of high-power blower, thus medical applications cannot be put into.Cause How this, ensureing to reduce noise on the premise of enough air quantity are required, become the research and development of present air cleaning system one is important Problem.
At present, main flow medical treatment ventilation equipment is using unidirectional stream clean technology.Unidirectional stream, also known as " laminar flow ", refers to by sky The air-flow that direction is consistent and streamline is almost parallel of air purifying apparatus or clean area.Unidirectionally the Rule of judgment of stream is：By cleaning The streamline in area is less than 14 ° with the deviation of ideal line.However, newest medical research as shown by data, unidirectional air supply stream operation Room has higher postoperative infection risk.And, the unidirectional stream air cleaning system of the overwhelming majority all adopts central air-conditioning pattern, its The disadvantage is that, operation energy consumption is big, pipeline length (airduct, air-conditioning cold water pipe), valve are more, control system is complicated.
Additionally, at present medical treatment air conditioning system is most and adopting central fresh air handling (dehumidifying, homoiothermic) and filtering, circulated air is every Between operating room all individual processing, processing mode is divided into " primary retirn air " or " first and second return air "." primary retirn air " refers to operating room The Cycle Unit that return air is all mixed and fed into required fresh air is dehumidified, homoiothermic and filtration etc. are processed；" first and second return air " is Refer to that a part of return air of operating room is mixed and fed into after the surface cooler of Cycle Unit is dehumidified with required fresh air to return with remaining again Wind mixes and carries out homoiothermic and filtration etc. and processes." primary retirn air " simple system, but all return air whole Jing Cycle Units are removed Reach machine dewpoint temperature (usually less than 16 DEG C) after wet, therefore also need heating to reach wind pushing temperature, so as to cause " cold ", " heat " offsets, and has not only wasted cold but also consumption of calorie, very not energy-conservation." first and second return air " system can reach the effect of energy-conservation, but Need to increase automatic regulating valve and actuator to realize automatically controlling, cause in actual applications often fault rate height, tune Examination difficulty is big, causes the system Difficulty.
In addition, in air circulation system, needing to be sufficiently mixed the return air that fresh air and Jing are processed, then it is delivered back into again In room.If mixing is uneven, the air quality of output wind will be directly affected, the oxygen content of such as local output wind is low Or temperature is higher.But fresh air often has considerably higher due to processing through dehumidifying, homoiothermic humidification and purification etc. than return air Pressure head (or claim blast) and correspondingly there is more high wind speed, therefore when directly the different fresh air of blast and return air are mixed, Uniform mixing difficult to realize.And if the two mixed in advance in preposition pipeline, then one needing longer mixing duct, two Carry out high-head fresh air and tend to interfere with the forward flow of low-head circulated air, or even flow backwards low-head circulated air, that is, it is so-called to occur " gas is blocked up " phenomenon.Therefore, in the prior art, it is general to avoid directly merging fresh air and the circulated air that transmission pressure head differs greatly as far as possible Conveyance conduit, but two conveyance conduits are remerged after being adjusted to their pressure head first, but this also causes significantly The cost of raising.
The technological trend of current air cleaning and conditioning system is developed to the direction of energy-conservation, simple system, convenient operating maintenance.
The content of the invention
From prior art, the task of the present invention is to provide a kind of low noise block air cleaning system, and utilizing should System, can substantially reduce infection rate after abortion operation, substantially reduce energy consumption, and while significantly reduces the construction cost of operating room, builds Duration (high integration equipment and modularity are installed and significantly reduce construction cost and complexity) and space requirement are (without the need for special machine Room, valve it is few and without the need for return air duct), and noise can also be significantly reduced on the premise of enough air quantity is ensured.
According to the present invention, the task is solved by a kind of low noise block air cleaning system, and the system includes：
Medical air draft fresh air one rack, including
First rack, it has：
For introducing the air draft entrance for treating air draft；
For discharging the wind exhausting outlet for treating air draft；
Air exhaust passage, air draft entrance is connected and treat air draft for guiding by it with wind exhausting outlet；
Exhaust fan, it is arranged between air draft entrance and wind exhausting outlet for treating air draft from row in air exhaust passage Wind entrance to wind exhausting outlet is guided；
Air draft filtering module, it is arranged in before exhaust fan for carrying out purification filtering to air draft；
Heat reclamation device, it is arranged between exhaust fan and wind exhausting outlet in air exhaust passage, the heat reclamation device Including plate type heat exchanger for the used heat or useless cold in recovery air draft；
For introducing the fresh air inlet of fresh air, the fresh air inlet is connected with plate type heat exchanger is changed for absorbing by board-like The used heat or useless cold that hot device is collected from air draft；
Fresh air pretreatment device, it is arranged at fresh air inlet for carrying out pretreatment to fresh air；
First fresh air channel, it is connected fresh air inlet with the second rack for fresh air is directed to into from fresh air inlet Two racks；
Fresh air air intake blower fan, its be arranged on fresh air flow direction in the first fresh air channel after heat reclamation device with For by the rack of Leads to new breeze first；And
Preheater, before it is arranged in fresh air air intake blower fan in the first fresh air channel；
And
Second rack, it has：
Fresh air is exported, and it is used to send fresh air；
Second fresh air channel, it is connected the first fresh air channel for fresh air is guided from the first rack with fresh air outlet To fresh air outlet；
Air cleaner, it includes being arranged in the fresh air terminal filter in fresh air exit；
Idle call indoor set, it includes dehumidifier, heater and the humidifier being arranged in the second fresh air channel；
Idle call outdoor machine, it includes digital variable volume direct-expansion type air-cooled unit for dehumidifier cooling；And
Fresh air air-out blower fan, it is used to export fresh air by fresh air discharges from the second rack；
Return air processes air-blow ceiling, and the air-blow ceiling is used to be arranged on the roof in medical room and by fresh air Pipeline is connected for introduction to fresh air with the fresh air outlet of medical air draft fresh air one rack, and the air-blow ceiling has：
Static pressure chamber, it is used to mix fresh air and return air；
Orientation blower, the orientation blower is arranged in static pressure chamber and with fresh air pipeline and connects, wherein the orientation Blower has the wind pushing hole of dorsad circulated air processing meanss so that the fresh air sent by wind pushing hole is by the wall of air-blow ceiling Equably mix to form circulated air with return air after portion's bounce-back；And
Circulated air processing meanss, it has the housing for isolating with static pressure chamber, and the circulated air processing meanss have：
Multiple blower fan filtering units, its circulated air entrance is connected with static pressure chamber and its circulated air outlet is directed at air-blow ceiling Circulated air that filter layer is mixed for introduction to return air and fresh air and purification filtering and will be purified is carried out to circulated air The circulated air of filtration transfers to the conveying of air-blow ceiling filter layer direction；
Air-blow ceiling filter layer, it is used for the circulated air to being exported by blower fan filtering unit carries out purification filtering so that Jing The circulated air of purification filtering is imported in medical room in the form of weak turbulent flow；And
Return air inlet, it is connected with medical room and is connected for return air is taken up a job as a doctor with static pressure chamber by return air passageway Treat room to be incorporated in the static pressure chamber of air cleaning system.
Air cleaning system of the invention at least has following advantages：(1) this air cleaning system has higher collection Cheng Du, its primary clustering is that medical air draft fresh air one rack and return air process air-blow ceiling, and wherein one rack is integrated with newly The purification function of the purification filtering of wind, dehumidifying/humidifying, temperature adjustment function and air draft, and return air processes air-blow ceiling and is integrated with back The purification filtering of wind, the uniform mixing of fresh air and return air and filtration, purification function, and the two integrated packages can be embodied as Finished product or can the simple assembled semi-finished product in scene, therefore this air system allows modularity to install, and such modularity is installed can With very fast and be readily achieved, so as to greatly simplify installation cost and shortening building time；(2) this purification of air system The two critical pieces of system are compact finished product, therefore they do not need Special machine room, but can be placed according to hospital conditions In place (in dirt passage), and the pipeline between them can arrange extremely short, especially return air channel Can be realized using passageway, and be processed in air-blow ceiling because return air processing function has been integrated with return air, therefore returned Return air datatron need not be placed in wind passageway, without arranging special return air duct, therefore this air cleaning system pair wherein The requirement in space is relatively low；(3) air cleaning system of the invention realizes low noise while enough air quantity are ensured, protects Comfortable and up to standard medical environment is demonstrate,proved, the principle of its noise suppressed is based on the following original discovery of the present inventor：Multiple blower fans Filter element (Fan Filter Unit, FFU) is used in parallel, it is possible to achieve enough air quantity simultaneously ensure low noise, this is because many Noise produced by individual blower fan filtering unit be additive noise, and be realize multiple blower fan filtering units power (or ventilation energy Power) the single blower fan filtering unit that adopted is difficult from suitable direct current generator, wherein current unit maximum quantity of wind is 3000m3/ h, the actual air volume for being used is 2000m3/ h, and must ensure that blower press is 210-290Pa so that unit noise It is higher, thus using multiple blower fan filtering units by compared with using the single blower fan filtering unit of equal air quantity is realized by significantly Reduce noise；(4) using the air cleaning system, infection risk can be effectively reduced, this is because, grinding according to inventor Study carefully investigation and find that one-way flow wind devices cause main reason is that for high infection rate, its air filter (such as HEPA, High Efficiency Particulate, high efficiency particulate air filter) although the microorganisms such as funguses, antibacterial can be trapped effectively, In actual use, filter becomes in itself the hotbed for taking and breeding microorganism in, and due to unidirectional streaming wind devices Air-out direction be generally fixedly directed at operating-table so that be easy to directly be blown into the antibacterial in filter layer by one-way gas flow Operating-table, such as operation technique position, so as to cause postoperative infection；And the air cleaning system in the application adopts weak turbulent flow skill Art, due to the direction randomness of weak turbulent flow, even if therefore the air-out direction of blowing device is directed at into operating-table, by filter layer Antibacterial is directly blown into the probability of operating-table and also can substantially reduce, so as to be effectively reduced postoperative infection risk；(5) using the sky Gas cleaning system, can greatly save electric energy, this is because, found according to unique insight of inventor, it is only necessary to new Wind carries out complete dehumidifying, homoiothermic and purified treatment, and return air is only needed to carry out purified treatment, just can be by medical room Air quality be maintained at preferable level because the hot humidity load increased due to indoor occupant operation is (including latent heat and aobvious Heat) only (can for example increase 150-200m by marginally increasing resh air requirement completely3/ h) offsetting, without to return air Dehumidified and homoiothermic；So, not only save for being dehumidified to return air, the electric energy of homoiothermic, and due to removing Wet process is transferred completely in the Fresh air handing device of fresh air air draft one rack and dehumidifying work(is not performed in return air datatron Can, it is thus also avoided that the drawbacks of " cold and hot to offset " in primary retirn air, improve temperature control efficiency；Additionally, using the adjustable nothing of rotating speed Brush DC fan can save 30% electric energy compared with using AC blower fan, and adjust exchanging for air quantity with by frequency conversion stepping Motor is compared, and by adjusting the rotating speed of direct current generator air quantity just can be infinitely adjusted, simple system, easy to use and save Investment；(6) using air cleaning system of the invention, it is possible to achieve blast it is different and thus the different fresh air of wind speed and time The uniform mixing of wind, its principle being based on is that the higher fresh air of blast and wind speed is on the dorsad direction of circulated air processing meanss Transmission certain distance and after the bounce-back of wall portion, its blast and wind speed have been attenuated to proper level, now again with return air Mixing, is easily achieved more uniform mixing, and the circulated air being then uniformly mixed by fresh air and return air is imported into again In circulated air processing meanss, can be directly output to after filtering in medical room；The air cleaning system of the present invention is without the need for special The control flow of valve, actuator and complexity, its control flow is simple, with low cost and good mixing effect.
Here, it is noted that the weak turbulent flow (also known as low turbulent flow) used in the present invention refers to, the turbulence level of air-flow (or Tolerance, the i.e. relative standard deviation for claiming turbulivity, i.e. air velocity to fluctuate relative to meansigma methodss) it is 5% to 20%.In addition, turbulent Degree<5% is unidirectional stream or laminar flow, turbulence level>20% for turbulent flow or turbulent flow (referring to DIN：DIN1946-4：2008).
Specify in a preferred version of the present invention, the plurality of blower fan filtering unit is four blower fan filtering units, And the noise figure of each blower fan filtering unit is selected to be less than equal to 45dB.By the preferred version, can be preferably real The air quantity of existing I level operating rooms is required and meets its noise requirements (≤51dB) simultaneously.
Specify in an expansion scheme of the present invention, the defecator of the plurality of blower fan filtering unit include blower fan, Motor and noise elimination spiral case.By the expansion scheme, the mechanical, electrical pole of circulated air apoplexy, the noise of air-flow, Ran Houzai can be substantially reduced Through ceiling filtration layer, the secondary filter of such as HEPA efficient filters, to reach very high purification filtering effect.
Specify in a preferred version of the present invention, the wall portion in static pressure chamber is provided with porous muffler plate, and new Acoustic filter is disposed with wind pipeline.By the preferred version, the noise of air cleaning system can be further reduced, so as to build More comfortable medical environment.
The present invention another preferred version in specify, return air process air-blow ceiling lower end be disposed with enclosing, with In the air-flow that air-blow ceiling output is processed return air carry out water conservancy diversion.The enclosing it is highly preferred for 450mm.By the preferred side Case, can be delivered to operating-table work surface in the case of relatively low wind speed, such as 0.24m/s by purify air.
Specify in the another preferred version of the present invention, the low noise block air cleaning system includes two return air Path, each return air path includes multiple return air inlets, and the return air inlet is arranged in operating-table both sides parallel to ground, each return air road Footpath supplies respectively the return air amount of input 50%, wherein the return air wind speed of the return air inlet is controlled as less than or equal to 1m/s.By this Preferred version, it is possible to use two return air inlets are arranged in two return air passageways that existing operating room generally has, so as to single time Reduction return air wind speed is compared in air port, so as to reduce noise.
Specify in an expansion scheme of the present invention, the medical room includes：Operating room, public ward, neonate Ward, central supply room and ICU wards.By the expansion scheme, it is possible to achieve the desired air in various medical rooms is clean Degree.Other medical rooms require that the room for being similar to air purity is also what is be contemplated that.
Specify in another expansion scheme of the present invention, the first rack also includes being arranged in fresh air inlet and fresh air air intake wind Chemical filtering module between machine to fresh air for carrying out chemical filtering, wherein described mistake during chemical filtering module includes was imitated Filtering layer.Additionally, the fresh air pretreatment device being arranged at fresh air inlet can also include thick effect filter layer and medium air filtration layer.It is logical The expansion scheme is crossed, the bulky grain of 2.5 μm in air and 10 μm can be first filtered and be reduced chemical pollutant (for example NOx、SOx、NH3And TVOC) concentration, so as to promote the follow-up fine filtering to fresh air.The chemical filtering module is, for example, cylinder Shape structure, built-in multiple formulations active carbon filler.
Specify in a preferred version of the present invention, adjust the thickness and/or air-supply day of the air-blow ceiling filter layer Spend the pitch of the folded filter paper of filter layer and change air supply velocity so that the fresh air and return air being input into is entered with weak turbulence form Enter in medical room.By the preferred version, can with low cost formed evenly with stable weak turbulent flow.This is because, Although the ceiling filtration layer adopted in the present invention is due to the random orientation of the filter opening in its filtering material (such as filter paper), inherently With the effect for making circulated air become weak turbulent flow, but by adjusting the thickness and/or air-supply day of the air-blow ceiling filter layer The pitch of the folded filter paper of flower filter layer, can make the low turbulent flow to be formed more stable and uniform, so as to further reduce sense Dye risk.
Specify in another preferred version of the present invention, fresh-air fan and/or blower fan filtering unit and/or exhaust fan are matched somebody with somebody Brshless DC motor is had, wherein the rotating speed of the brshless DC motor can be adjusted infinitely.By the preferred version, can be with Realize the energy-saving effect of brshless DC motor and realize freely adjusting for resh air requirement, return air amount and exhaust air rate.
Specify in the another preferred version of the present invention, air cleaning system is configured to the cleanliness factor according to medical room Require the rotating speed of the brshless DC motor of regulation fresh-air fan and blower fan filtering unit.By the preferred version, it is possible to achieve no Same cleaniliness classs, i.e., switch, to meet different medical between different purposes medical treatment room (such as different operating room grades) The purity requirements in room.
Specify in another preferred version of the present invention, the medical room is operating room, and the purification of air system System also includes operating room real-time detecting system, and the operating room real-time detecting system includes temperature monitor, humidity measurement instrument, wind Fast detector, pressure difference detector and detection of particles instrument, and the air cleaning system is configured to according to the temperature for being detected Degree, humidity, wind speed, pressure drop, particle concentration are adjusting the fresh-air fan and/or return air fan and/or exhaust fan The rotating speed of brushless DC blower, the life-span of filter layer, air quantity and cleanliness factor and adjust the straight swollen air-cooled unit of digital variable volume Cold.By the preferred version, dynamically the indoor air parameter of operation can automatically be maintained and meet corresponding operating room In the range of cleaniliness classs is required and maintain air-conditioning parameter.
The present invention another preferred version in specify, medical air draft fresh air one rack fresh air inlet and air draft go out Gravity self-locking air door is respectively disposed with mouthful, the gravity self-locking air door has：
Aerofoil, its size matches with air port；
Trip shaft, it passes through aerofoil that aerofoil is overturn around trip shaft；
Counterweight, it is arranged in one end of the aerofoil so that aerofoil keeps vertically closing in the case where external force is not received Air port；And
Backstop, it is arranged in the top and/or bottom of air outlet for preventing aerofoil from reversely deflecting.
By the preferred version, in the case where not introducing fresh air or air draft being treated in discharge, it is possible to achieve each air door Self-closed, so as to be effectively prevented pollutant or foreign body is polluted into air channel by air door or blocked.On the other hand, only Gear can prevent the reverse deflection of aerofoil.
In addition, the foregoing task of the present invention can also be realized by a kind of operating room, the operating room has according to this Bright low noise block air cleaning system.By the operating room, purification of air system of the invention can be equally realized The advantage of system, infection rate after abortion operation is substantially reduced, substantially reduce energy consumption, and while significantly reduced the construction cost of operating room, build If duration (high integration equipment and modularity are installed and significantly reduce construction cost and complexity) and space requirement are (without the need for special machine Room, valve it is few and without the need for return air duct), and noise can also be significantly reduced on the premise of enough air quantity is ensured.
Description of the drawings
Below in conjunction with the accompanying drawings with reference to specific embodiment the present invention is expanded on further.
Fig. 1 shows the schematic diagram of low noise block air cleaning system of the invention；
Fig. 2A shows the cut-away view of medical air draft fresh air one rack of the invention；
Fig. 2 B show the view from the point of view of the A directions from Fig. 2A of heat reclamation device；And
Fig. 3 shows the schematic diagram of gravity self-locking air door of the invention.
Fig. 4 shows the schematic diagram of the operating room real-time detecting system of air cleaning system of the invention.
Specific embodiment
Fig. 1 shows the schematic diagram of low noise block air cleaning system 100 of the invention.It should be pointed out that each Each component in accompanying drawing perhaps to graphic extension and illustrate with being exaggerated, and be not necessarily in perspective.In the drawings, Identical reference is equipped with to identical or function identical component.
As shown in figure 1, air cleaning system 100 is high integration, modular, it mainly includes two modules：Doctor Air-blow ceiling 103 is processed with air draft fresh air one rack 200 (including its digital variable volume direct-expansion type air-cooled unit 111), return air.
Medical air draft fresh air one rack 200 is preferably placed in the dirt passage 113 in medical room, compact outer due to its Shape, therefore may be arranged in the corner of dirt passage 113 and do not affect normal pass, so as to save for arranging purification of air The conventional dedicated machine room of system.But other arrangements are also what is be contemplated that.Medical air draft fresh air one rack 200 is configured It is to introduce fresh air from fresh air inlet 214 (referring to Fig. 2A) and export the fresh air of purified filtration, homoiothermic, damping by fresh air 218 are conveyed to return air via fresh air pipeline 101 and optional acoustic filter 115 processes air-blow ceiling 103.Medical air draft fresh air one Rack 200 is additionally configured to the row of the air draft entrance 203 to introducing one rack 200 via exhaust duct 102 from exhaust outlet 116 Wind carries out filtering with recuperation of heat and being discharged to outdoor by wind exhausting outlet 216.Additionally, also show in FIG and medical air draft The matching used outdoor machine of fresh air one rack 200, i.e. digital variable volume direct-expansion type air-cooled unit 111, it is used for dehumidifying The cooling of device 209.With regard to the further 26S Proteasome Structure and Function details of medical air draft fresh air one rack 200, Fig. 2A and Tu is referred to 2B and its corresponding description, here is not just repeated here.
Return air process air-blow ceiling 103 be installed on the roof in medical room and by fresh air pipeline 101 with it is medical The connection of fresh air outlet 218 of air draft fresh air one rack 200 is for introduction to fresh air.It should be pointed out that return air processes air-blow ceiling 103 both can be inlaid in the upper interlayer in medical room, it is also possible to be arranged on medical room as conventional air-blow ceiling Ceiling on.The air-blow ceiling 103 has includes static pressure chamber 114, its be used to passing through the fresh air that introduce of fresh air pipeline 101 with Equably mixed to form circulated air (in this application, circulated air by the return air that return air passageway 112 introduces from return air inlet 110 Refer to the mixing of fresh air and return air).Static pressure chamber 114, also known as static pressure space, for example, with certain geometrical shape, for example rectangular The cavity of the bodily form, its shape and size should be enough such that fresh air and return air can thoroughly and uniformly mix.Air-blow ceiling 103 Also there is the orientation blower 105 being arranged in static pressure chamber 114, the orientation blower 105 is connected with fresh air pipeline 101.At this In embodiment, orientation blower 105 is configured to pipeline, but can also be configured to other forms, example in other embodiments Aerofoil such as with holes, ring pipe with holes.Orientation blower 105 the sending with dorsad circulated air processing meanss 117 arrangement Air holes (not shown) so that the fresh air (in FIG with illustrate to upward arrow) sent by wind pushing hole can processed by return air Equably mix to form stable, uniform circulated air with return air after wall portion (such as top) bounce-back of air-blow ceiling 103.It is fixed Make it possible to make fresh air and return air more in the case where the space in static pressure chamber 114 is not dramatically increased to the presence of blower 105 Thoroughly and uniformly mix, so as to eliminate conventional air cleaning equipment in order to realize the equal of the different fresh air of blast and return air Valve system and its actuator of the adopted high cost of even mixing and complexity.
Return air processes air-blow ceiling 103 also includes circulated air processing meanss 117, and it has for isolating with static pressure chamber 114 Housing, so as to prevent without the purification filtering of blower fan filtering unit 104 return air directly by air-blow ceiling filter layer 106 it is defeated Enter in medical room, affect the effect of return air purification filtering.Circulated air processing meanss 117 have that multiple (such as four, be clear Chu Qijian only shows in FIG two blower fan filtering units 104；But the blower fan filtering unit 104 of other numbers It is contemplated that) blower fan filtering unit 104, its circulated air entrance 110 is connected with static pressure chamber 114 and its circulated air exports 108 Circulated air that alignment air-blow ceiling filter layer 106 is uniformly mixed for introduction to return air and fresh air and circulated air is carried out The circulated air of purified filtration is simultaneously transferred to the conveying of air-blow ceiling filter layer direction by purification filtering.It should be pointed out that blower fan filtering list Unit 104 is modified blower fan filtering unit, and it includes that blower fan 107 and noise elimination spiral case (are not equipped with reference, referring to blower fan mistake Line segment part in filter unit 104), wherein the blower fan filtering unit 104 can not include filter layer, but by the filtration Function moves to air-blow ceiling filter layer 106.Through the repacking, i.e. by removing filter layer and adding noise elimination spiral case, can be with Noise is reduced into 2-3dB (A).The structure of noise elimination spiral case for example can be the coating " noise elimination cotton " (not dust type) on deflector, Deflector is arranged in noise elimination spiral case.
In the present invention, Jing experimental tests, sound pressure level added value statement is shown in Table 1, and four used in parallel after noise source superposition Noise is respectively the noise figure of the blower fan filtering unit (Fan Filter Unit, FFU) 104 of 45dB (A) and is shown in Table 2：
Table 1：Sound pressure level added value statement during noise source superposition
Table 2：Environment noise table 1-4 platforms FFU runs simultaneously when
From upper table it is known that running the FFU that one to four unit noise is 45dB (A) simultaneously according to the present invention, can With by noise control at 45 to 51dB (A), so as to while different operating room cleanliness factors and air-conditioning requirement is met, meeting and make an uproar Sound is required.This is because the noise produced by multiple blower fan filtering unit FFU is additive noise (during the different number of units blower fan of operation 1) noise is shown in Table, and is to realize the single blower fan filtering unit that the power (or draught capacity) of multiple blower fan filtering units is adopted Noise will be much higher than the noise sum of multiple blower fan filtering units, such as high 5-10 decibels or more, therefore using multiple Blower fan filtering unit will substantially reduce noise compared with using the single blower fan filtering unit for realizing equal air quantity.Additionally, in order to Noise is further eliminated, the wall portion in static pressure chamber 114 porous muffler plate can be provided with, and is arranged on fresh air pipeline 101 There is acoustic filter 115.Muffler plate and acoustic filter for example can be made up of the low density acoustic material such as foam, cork, rubber, it is also possible to It is made up of high-density sound-proof materials such as metallic plates.In addition it is also possible on the pipeline after the fresh air outlet 218 of one rack 200 Arrangement acoustic filter is using as the means of supplementing out economy for reducing noise.
Blower fan filtering unit 104 includes blower fan and noise elimination spiral case (being not equipped with reference), by the expansion scheme, can be with The mechanical, electrical machine of circulated air apoplexy, the noise of air-flow are substantially reduced, then again through ceiling filtration layer 106, such as HEPA high-efficient filters The secondary filter of net, to reach very high purification filtering effect.
Return air processes air-blow ceiling 103 also includes air-blow ceiling filter layer 106, and it is used for by blower fan filtering unit 104 The circulated air of output carries out purification filtering so that the circulated air of purified filtration is imported into medical room in the form of weak turbulent flow In.Variola filter layer 106 can also preferably use HEPA filters.Additionally, the lower end in return air process air-blow ceiling 103 is preferred Be disposed with enclosing 118, for carrying out water conservancy diversion to the air-flow that air-blow ceiling 103 is exported.The highly preferred of the enclosing be 450mm.By the preferred version, can in the case of relatively low wind speed, such as 0.24m/s by purify air be delivered to for example away from The operating-table work surface of ground 1200mm.Enclosing 118 can be made up of transparency glass plate or resin material.
Air cleaning system 100 also includes return air inlet 110, and it is multiple return air inlets and equipped with medium air filtration layer F7/F9, They are connected and are connected with static pressure chamber 114 for return air is drawn from medical room by return air passageway 112 with medical room Enter in the static pressure chamber 114 of air cleaning system 100.In the air cleaning system of the present invention, without the need for adopting return air duct, and That return air is transported in static pressure chamber 114 by return air passageway 112, and it is current major part operating room in all build have for The return air passageway of laying return air duct, therefore existing return air passageway is directly used in into conveying return air, it is omitted from laying return air duct Cost.And, without arrangement return air datatron in return air passageway 112, but return air processing function is shifted completely To in circulated air processing meanss 117.Which greatly simplifies the installation process of air cleaning system 100 and reduce space requirement.
Here, for example can in the following way change operating room grade：Change fresh-air fan (including one rack 200 fresh air air intake blower fan 208 and fresh air air-out blower fan 213) brshless DC motor rotating speed adjusting resh air requirement (1200m3/h、1000m3/h、800m3/ h), while by air-conditioning outdoor machine (the digital variable volume direct-expansion type supporting with fresh-air fan Air-cooled unit 111) cold it is matched；Air-blow ceiling 103 air supply velocity (I classes operating room be 0.24-0.3m/s, wind Amount 8000-10000m3/ h) and/or the control minimum rate of ventilation of operating room (24 times/h of II classes, 18 times/h, IV class of Group III 12 times/ H), the difference of different stage operating room is met indeed through the model or rotation speed of fan for changing blower fan filtering unit 104 Purity requirements.Temperature, the humidity of operating room construction system are adjusted simultaneously.
Air-flow direction in low noise block air cleaning system 100 is described below.
With regard to fresh air：First, fresh air is introduced into and Jing from the fresh air inlet 214 of medical air draft fresh air one rack 200 Cross after purification, filtration, homoiothermic and conditioning and be transported in return air process air-blow ceiling 103 by fresh air pipeline 101.Sending In wind variola 103, fresh air is transported to static pressure by orientation blower 105 on the dorsad direction of circulated air processing meanss 117 In chamber 114, and in the returning in static pressure chamber 117 and from the introducing of return air passageway 112 after the bounce-back of the wall portion of air-blow ceiling 103 Wind thoroughly and uniformly mixes, and is then imported in the presence of blower fan filtering unit 104 in mixed uniformly circulated air and follows In ring wind processing meanss 117, after the purification filtering of blower fan filtering unit 104, circulated air is by air-blow ceiling filter layer 106 The direction conveying of layer, it is last Jing after the purification filtering of air-blow ceiling filter layer 106 to be entered in medical room with weak turbulence form. From figure 1 it appears that the air stream or circulated air (being represented with reference 112) after purified is with random and unordered direction It is blown near operating-table 109, therefore due to the direction randomness of weak turbulent flow, even if therefore by the air-out of air-blow ceiling 103 Direction is directed at operating-table 109, and the antibacterial in filter layer is directly blown into into the probability of operating-table 109, especially operative site Can substantially reduce, so as to be effectively reduced postoperative infection risk.
With regard to return air：Air Jing return air inlets 110 (inside setting medium air filtration layer F7/F9) in medical room enter return air passageway 112, and the static pressure chamber 114 that return air processes air-blow ceiling 103 is entered by return air passageway 112, with fresh air in static pressure chamber 114 Thoroughly and uniformly mix, and in the blower fan filtering unit 104 and air-blow ceiling filter layer through circulated air processing meanss 117 Entered in medical room with weak turbulence form after 106 filtration.
With regard to air draft：Treat that air draft is entered in air draft fresh air one rack 200 by exhaust outlet 116 via exhaust duct 102, And there is discharged to outdoor through filtering with after recuperation of heat.Air-exhausting function is for example indoor such as rapid evacuation operation The pharmaceutical gas of anesthetis etc, or for rapid aeration.
Air cleaning system of the invention 100 at least has following advantages：(1) this air cleaning system 100 has High integration degree, its primary clustering is that medical air draft fresh air one rack 200 and return air process air-blow ceiling 103, wherein one Rack 200 is integrated with the purification function of purification filtering, dehumidifying/humidifying, temperature adjustment function and the air draft of fresh air, and return air is processed and sent The uniform mixing of the integrated fresh air of wind variola and return air and filtration, purification function, and the two integrated packages can be embodied as finished product Or can the simple assembled semi-finished product in scene, therefore this air system 100 allows modularity to install, and such modularity is installed can be with It is very fast and be readily achieved, so as to greatly simplify installation cost and shortening building time；(2) this air cleaning system 100 the two critical pieces are compact finished product, therefore they do not need Special machine room, but can be placed according to hospital conditions In place (in dirt passage), and the pipeline between them can arrange extremely short, especially return air channel Can be realized using passageway 112, and be processed in air-blow ceiling 103 because return air processing function has been integrated with return air, because This need not place return air datatron in return air passageway, without arranging special return air duct, therefore this purification of air wherein Requirement of the system to space is relatively low；(3) air cleaning system 100 of the invention is realized while enough air quantity are ensured Low noise, it is ensured that comfortable and up to standard medical environment, the principle of its noise suppressed is based on the following original discovery of the present inventor： Multiple blower fan filtering unit (Fan Filter Unit, FFU) 104 are used in parallel, it is possible to achieve enough air quantity simultaneously ensure low noise Sound, this is because the noise produced by multiple blower fan filtering units 104 is additive noise (concrete noise figure is referring to table 1), and be Realize that the single blower fan filtering unit that the power (or draught capacity) of multiple blower fan filtering units 104 is adopted is difficult from suitable Direct current generator, wherein current unit maximum quantity of wind be 3000m3/ h, the actual air volume for being used is 2000m3/ h, and must protect Card blower press is 210-290Pa so that unit noise is higher, therefore equal with using realizing using multiple blower fan filtering units The single blower fan filtering unit of air quantity is compared and will substantially reduce noise, and plurality of blower fan used in parallel can be realized compared with severe excess syndrome Show air quantity and compared with slow-speed of revolution operation, fan efficiency may be sacrificed, but greatly reduce noise；(4) using the air Cleaning system 100, can be effectively reduced infection risk, this is because, found according to the research of inventor, one-way flow Wind devices cause main reason is that for high infection rate, its air filter (such as HEPA, High Efficiency Particulate, high efficiency particulate air filter) although the microorganisms such as funguses, antibacterial can be trapped effectively, in actually used process In, filter becomes in itself the hotbed for taking and breeding microorganism in, and due to the air-out direction of unidirectional streaming wind devices it is general Regularly it is directed at operating-table so that be easy to that the antibacterial in filter layer is directly blown into into operating-table, such as handss by one-way gas flow Art operating position, so as to cause postoperative infection；And the air cleaning system in the application adopts weak turbulent flow technology, due to weak turbulent flow Direction randomness, even if therefore the air-out direction of blowing device is directed at into operating-table, the antibacterial in filter layer is directly blowed Probability to operating-table also can be substantially reduced, so as to be effectively reduced postoperative infection risk；(5) using the air cleaning system 100, electric energy can be greatly saved, this is because, found according to unique insight of inventor, it is only necessary to which fresh air has been carried out Whole dehumidifying, homoiothermic and purified treatment, and return air is only needed to carry out purified treatment, just can be by the air matter in medical room Amount is maintained at preferable level, because the hot humidity load (including latent heat and sensible heat) increased due to indoor occupant operation completely may be used (for example increase 150-200m only to pass through marginally increase resh air requirement3/ h) offsetting, without dehumidifying to return air And homoiothermic；So, not only save for being dehumidified to return air, the electric energy of homoiothermic, and due to dehumidification process is complete Portion is transferred in the Fresh air handing device of fresh air air draft one rack 200 and does not perform dehumidification function in return air datatron, also The drawbacks of avoiding " cold and hot to offset " in primary retirn air, improves temperature control efficiency；Additionally, using the adjustable brushless direct-current of rotating speed Blower fan can save 30% electric energy compared with using AC blower fan, and with the alternating current generator phase of air quantity is adjusted by frequency conversion stepping Than, just can infinitely adjust air quantity by adjusting the rotating speed of direct current generator, it is simple system, easy to use and reduce investment outlay； (6) using air cleaning system of the invention 100, it is possible to achieve blast difference and the thus different fresh air of wind speed and return air Uniform mixing, its principle being based on is, the higher fresh air of blast and wind speed is uploaded in the direction of dorsad circulated air processing meanss Defeated certain distance and after the bounce-back of wall portion, its blast and wind speed have been attenuated to proper level, now mixed with return air again Close, be easily achieved more uniform mixing, the circulated air being then uniformly mixed by fresh air and return air is imported into follows again In ring wind processing meanss 117, can be directly output to after filtering in medical room；The air cleaning system 100 of the present invention need not The control flow of special valve, actuator and complexity, its control flow is simple, with low cost and good mixing effect.
Fig. 2A shows the cut-away view of medical air draft fresh air one rack 200 of the invention.
As shown in Figure 2 A, medical air draft fresh air one rack 200 includes the first rack 201 and the second rack 202.First machine The rack 202 of cabinet 201 and second both can be with integrated shaping, it is also possible to by assembling generation after being formed separately.
First rack 201 has treats the air draft entrance 203 of air draft and for discharging the wind exhausting outlet for treating air draft for introducing 216.First rack 201 also have air exhaust passage (not shown), its by air draft entrance 203 be connected with wind exhausting outlet 216 with Air draft is treated in guiding, wherein air exhaust passage both can be special pipeline, it is also possible to be surrounded by the wall portion of the first rack 201.The One rack 201 also have exhaust fan 204, its be arranged in air exhaust passage between air draft entrance 203 and wind exhausting outlet 216 with For treating that air draft is guided from air draft entrance 203 to wind exhausting outlet 216.Exhaust fan 204 is preferably equipped with rotating speed can stepless-adjustment Whole brshless DC motor so that exhaust air rate can be adjusted by adjusting rotation speed of fan, so as to adjust the gas in medical room Pressure, to reach desired pressure reduction effect.First rack 201 also has air draft filtering module 220, and it is arranged in air exhaust passage For purification filtering is carried out to before outdoor in row to air draft before exhaust fan 204, treat in air draft for filtering Microorganism, in order to avoid be directly discharged in environment.
First rack 201 also has heat reclamation device 206, and it is arranged in exhaust fan 204 and air draft in air exhaust passage Between outlet 216.During the heat reclamation device 206 includes plate type heat exchanger (or claiming honeycomb heat exchanger) for reclaiming air draft Used heat is useless cold.The plate type heat exchanger for example includes multiple heat exchanger plates 217 for being mutually perpendicular to and arranging so that treat that air draft can hang down It is straight to flow (the single arrow in referring to Fig. 1) in fresh air direction and by used heat or useless cold pass to fresh air by heat exchanger plates 217.Change Hot plate 117 is for example made up of very thin copper coin, but other good heat conducting materials are also what is be contemplated that.Heat reclamation device 106 enters one Step details see Fig. 2 B.
First rack 201 also has the fresh air inlet 214 for introducing fresh air, the fresh air inlet 214 and heat exchanger plates 217 Connection is for by Leads to new breeze to heat exchanger plates 217.First rack 201 also has the first fresh air channel (not shown), and it will Fresh air inlet is connected for fresh air is directed to into the second rack 202 from fresh air inlet 214 with the second rack 202.First fresh air Passage both can be pipe special, it is also possible to be surrounded by the wall portion of the first rack.First rack 201 also has fresh air air intake blower fan 208, it is arranged in after heat reclamation device 206 in the first fresh air channel on fresh air flow direction (arrow in referring to Fig. 1) For by the first rack of Leads to new breeze 201.
First rack 201 also has fresh air pretreatment device 205, and it is arranged at fresh air inlet 214 for fresh air Carry out pretreatment.Fresh air pretreatment device 205 include for filtering air in bulky grain thing coarse filtration and medium air filtration layer.
First rack 201 also has optional chemical filtering module 207, and the chemical filtering module 207 is arranged in fresh air and enters For carrying out chemical filtering to fresh air between mouthfuls 214 and fresh air air intake blower fan 208.By chemical filtering module 207, it is possible to decrease Chemical pollutant (such as NOx、SOx、NH3And TVOC) concentration, so as to promote the follow-up fine filtering to fresh air.The chemistry The for example, tubular structure of filtering module 207, built-in multiple formulations active carbon filler.
First rack 201 also have preheater 212, its be arranged in the first fresh air channel fresh air air intake blower fan 208 it Before, between such as chemical filtering module 207 and fresh-air fan 208.Preheater 212 is preheated to carry out for winter to fresh air Subsequent heating, to complete " isothermal humidification " function.
The second rack 202 is also show in Fig. 2A.Second rack 202 has the second fresh air channel, and it leads to the first fresh air Road is connected for fresh air is directed to into fresh air outlet 218 from the first rack 201 with fresh air outlet 218.In fig. 2, the first machine 201 the first fresh air channel is connected for defeated by interface channel 221 with the second fresh air channel in the second rack 202 in cabinet Send fresh air.Second rack 202 has air cleaner, and it includes being arranged in the fresh air terminal filter in fresh air exit 219, the fresh air terminal filter 219 is used to carry out double purification filtration to fresh air.
Second rack 202 also has idle call indoor set, dehumidifier 209 that it includes being arranged in the second fresh air channel, Heater 210 and humidifier 211, wherein dehumidifier 209 e.g. freon direct-evaporation-type surface-cooler (or claim table cold Device), it is used to carry out depth dehumidifying to fresh air.Heater 210 is used for the air relatively low to the temperature of Jing dehumidifying and is heated to suitably Temperature with ensure air-supply do not condense, or winter humidification before heating.Heater 210 is, for example, electrical heating wire.Humidifier 211 For example, electrode humidifler, it is used to humidify fresh air.
Second rack 202 also has the idle call outdoor machine for supplying low-temperature receiver, and it includes digital variable volume direct-expansion type wind Cold group 111 (referring to Fig. 1) is for dehumidifier cooling.
Fresh air terminal filter 219 can alternatively have the filter for filtering the granule of particle diameter 0.1m to 0.5m Core (not shown).The characteristics of digital variable volume direct-expansion type air-cooled unit is, in dehumidifying, cold-producing medium by direct evaporation with it is new Wind direct heat transfer is to complete dehumidification function, and cold adjustable extent is big, and its simple system, effect is good.
Second rack 202 also includes fresh air air-out blower fan 213, and it is used to discharge fresh air from the second rack 102.Fresh air The air intake direction of air-out blower fan 213 both can be perpendicular to fresh air flow direction, it is also possible to parallel to fresh air flow direction.Finally, Second rack 202 also includes fresh air outlet 218, and it is used to discharge fresh air.
The fresh air inlet 214 and wind exhausting outlet 216 of the first rack 201 alternatively can respectively have gravity self-locking air door 215 so that do not introduce fresh air or discharge treat air draft in the case of, it is possible to achieve the automatic sealing package of each air door 214 and 216 Close, pollute into air channel or block by air door 214 and 216 so as to be effectively prevented pollutant or foreign body.Gravity self-locking The further detail below of air door 215 will be illustrated in fig. 2b.
Additionally, fresh air air intake blower fan 208 and fresh air air-out blower fan 213 are configured with the adjustable brshless DC motor of rotating speed.Such as This one, energy-conservation on the one hand can be realized, because 30% can be saved compared with using AC blower fan using brshless DC motor Electric energy.On the other hand, it is different types of to be adapted to by using the adjustable motor of rotating speed, it is possible to achieve the regulation of resh air requirement Operating room (I classes, II classes, Group III and IV classes), realizes a tractor serves several purposes.The power of separate unit blower fan is, for example, 150-300W, with wind Amount change, its changed power is of about 10%.Additionally, sacrificial section energy-saving effect is also feasible with the scheme for reducing type. Stepless speed regulation is compared with alternating current generator frequency conversion stepping speed governing, and system is simply too much, so as to reduce control cost.For cleaning The change of degree, can accordingly adjust return air amount (changing the rotating speed of return air fan).
In this one rack 200, the value of the resh air requirement of all kinds of operating rooms for example can be 1200m3/h、1000m3/h、 800m3/ h, fresh air is provided with eliminating the ability of all kinds of operation interiors sensible heat after cool-down dehumidification.It is appropriate to increase what Jing depth dehumidified Resh air requirement can eliminate completely the indoor hot humidity load of all kinds of operations (including sensible heat and latent heat).Therefore, it can operating room " air conditioning function " and " purification function " of " purification air-conditioning " system is performed separately, fundamentally to avoid air cleaning and conditioning system The drawbacks of " cold ", " heat " offset.And this one rack greatly simplify can also operating room air cleaning and conditioning system, less valve Number, reduction automatically control difficulty, and its is easy to operate, safeguard simple and good energy-conserving effect.
Additionally, in this one rack, it is used in parallel with fresh air air-out blower fan 213 by fresh air air intake blower fan 208, it is real Existing fan pressure head superposition, to solve one rack in high-head technical bottleneck is needed due to multi-functional section.In addition, it is contemplated that Noise when fan parallel-connection is used, in fresh air pipeline 101 or on fresh air pipeline 101 acoustic filter 106 is provided with.
Depth dehumidifying belongs to cold air distribution, and in addition to slightly reheating measure, the fan temperature rise of circulated air can be reduced The risk of " air-supply condensation ".
In addition, exhaust fan 204, fresh air air intake blower fan 208 and fresh air air-out blower fan 213 can be arranged in noise elimination cavity In (not shown).The noise elimination cavity is located at respectively in air exhaust passage, the first fresh air channel and the second fresh air channel, for institute Stating blower fan carries out noise reduction.Noise elimination cavity for example can be made up of the low density acoustic material such as foam, cork, rubber, it is also possible to by gold The high-density sound-proof materials such as category plate are made.In addition it is also possible to arrange acoustic filter using as drop on the pipeline after fresh air outlet 218 The means of supplementing out economy of low noise.
The flow process for treating air draft and fresh air in medical air draft fresh air one rack 200 is illustrated separately below.
Treat that the flow process of air draft is as follows：First, treat that air draft enters the first rack 201 in the presence of exhaust fan 204 Air exhaust passage, and after the purification filtering of air draft filtering module 220 by heat reclamation device 206 and useless cold Or used heat passes to heat exchanger plates 217, heat exchanger plates 217 further pass to what is conveyed in heat exchanger plates 217 described useless cold or used heat Fresh air；Then, treat that air draft is discharged from wind exhausting outlet 216.
The flow process of fresh air is as follows：First, fresh air in the presence of fresh air air intake blower fan 208 from the first rack 201 Into the first fresh air channel of the first rack 201 in fresh air inlet 214, in the purification filtering through fresh air pretreatment device 205 Heat reclamation device 206 is entered later and is absorbed from the used heat for treating air draft or useless cold and intensification or is lowered the temperature；Then, fresh air is through can The chemical filtering module 207 of choosing is filtered with experiencing preliminary purification；The fresh air that Jing preliminary purifications are filtered is through the pre- of preheater 212 The first rack 201 is left after hot and the second fresh air channel of the second rack is entered by passage 221, in the second rack 202, Fresh air is at the humidification and fresh air end of depth dehumidifying, the heating of heater 210 and the humidifier 211 for experiencing dehumidifier 209 respectively Second machine is left by fresh air outlet 218 in the presence of fresh air air-out blower fan 213 after the purification filtering of end defecator 219 Cabinet 202.
Fig. 2 B show the view from the point of view of the A directions from Fig. 2A of heat reclamation device 206.In fig. 2b, with arrow come table Show the flow direction for treating air draft, and the flow direction of fresh air is represented with reticule.As can be seen that recuperation of heat dress from Fig. 2 B Putting 206 includes multiple heat exchanger plates 217, and the heat exchanger plates 217 are for example mutually perpendicular to arrange to be formed respectively for treating air draft and fresh air The passage for passing through, and two kinds of passages mutually do not connect the undesirable mixing to prevent fresh air He treat air draft.Heat exchanger plates 217 are used for The used heat or useless cold for treating air draft (see the arrow in Fig. 2 B) that passes through from heat exchanger plates 217 of collection, and by the used heat or useless cold Pass to into the fresh air in heat exchanger plates 217 (referring to the reticule in Fig. 2 B).By the heat reclamation device 206, it is possible to achieve The used heat or useless cold recycling of air draft are treated, so as to realize energy-saving effect.Heat exchanger plates 217 for example can be very thin copper coin, but The heat exchanger plates 217 by made by other Heat Conduction Materials are also what is be contemplated that.
Fig. 3 shows the schematic diagram of gravity self-locking air door 215 of the invention.As shown in Figure 2 A, gravity self-locking air door 215 are for example arranged in fresh air inlet 214, it is also contemplated that, gravity self-locking air door 215 is arranged in into wind exhausting outlet 216 In.
Gravity self-locking air door 215 includes aerofoil 301, and its size matches with air port.For example, the size of aerofoil 301 is true It is set to and enables just to cover air port, i.e. fresh air inlet 214 when aerofoil 301 is vertical, realizes sealing effect.Air door can be with It is made up of plastics, timber or other light materials.
Gravity self-locking air door 215 also includes trip shaft 303, and it passes through aerofoil 301 to enable aerofoil 301 around trip shaft 303 upsets.
As shown in figure 3, being disposed with counterweight 302 in one end of aerofoil 301, such as lower end so that aerofoil 301 is not receiving external force In the case of keep vertically closing air port.Counterweight for example can be made of the high density materials such as metal.Counterweight 302 is installed in At correct position on aerofoil 301 so that aerofoil 301 not receive external force, i.e. not whne air draft or fresh air when under gravity Naturally it is returned at minimum point, i.e. gravitional force minimum, so as to close air port.And when in introducing fresh air or discharge whne air draft, Aerofoil 301 fresh air suction or treat air draft thrust under overcome gravity to overturn around trip shaft 303, so as to produce gap, Enable fresh air or treat that air draft is entered air intake vent or discharged (referring to arrow in Fig. 3) from air port by the gap.Also show in Fig. 3 Backstop 304 is gone out, the backstop 304 can be arranged in the bottom and/or top in air port.By backstop 304, aerofoil can be prevented Adverse movement, i.e. contrary with air-flow (fresh air, treat air draft) direction of motion direction motion.
By gravity self-locking air door 215, in the case where not introducing fresh air or air draft being treated in discharge, it is possible to achieve each wind The self-closed of door, so as to be effectively prevented pollutant or foreign body is polluted into air channel by air door or blocked.
Fig. 4 shows the schematic diagram of the operating room real-time detecting system 400 of air cleaning system of the invention 100. In the diagram, operating room real-time detecting system 400 exemplarily includes temperature monitor 401, humidity measurement instrument 402, wind speed measurement Instrument 403, pressure difference detector 404 and detection of particles instrument 405, they are respectively configured as detecting the indoor temperature of operation, wet Degree, wind speed, pressure drop and particle concentration or population.In the present embodiment, operating room real-time detecting system 400 can also be wrapped Wireless transmitting unit 406 is included, it is configured to detected temperature value, humidity value, air speed value, pressure difference wirelessly Central controller 407 is sent to particle concentration value or population.Central controller 407 is preferably arranged in air cleaning system In 100, but can also it is arranged apart with air cleaning system 100 and by wireless or cable with air cleaning system 100 Connection and communication.Central controller 407 is manually or automatically adjusted to system according to received information, remains each The desired air parameter of class operating room, also including the display and warning of parameter.Here, it is noted that although in the present embodiment It is middle to be shown as operating room real-time detecting system 300 wirelessly to communicate with central controller 407, but in other embodiments In, it is also possible to communicated by wired mode, and in other embodiments, can be less or more in the indoor arrangement of operation Detection means.
Although some embodiments of the present invention are described in present specification, to art technology Personnel are it is readily apparent that these embodiments are merely possible to shown in example.It may occur to persons skilled in the art that numerous Flexible program, replacement scheme and improvement project and without departing from the scope of the present invention.Appended claims are intended to limit this Bright scope, and thereby cover these claim itself and its method and structure in the range of equivalents.

Claims (14)

1. a kind of low noise block air cleaning system, including：
Medical air draft fresh air one rack, including
First rack, it has：
For introducing the air draft entrance for treating air draft；
For discharging the wind exhausting outlet for treating air draft；
Air exhaust passage, air draft entrance is connected and treat air draft for guiding by it with wind exhausting outlet；
Exhaust fan, it is arranged between air draft entrance and wind exhausting outlet for treating that air draft enters from air draft in air exhaust passage Mouth is to wind exhausting outlet guiding；
Air draft filtering module, it is arranged in before exhaust fan for carrying out purification filtering to air draft；
Heat reclamation device, it is arranged between exhaust fan and wind exhausting outlet in air exhaust passage, and the heat reclamation device includes Plate type heat exchanger is for the used heat or useless cold in recovery air draft；
For introducing the fresh air inlet of fresh air, the fresh air inlet is connected for absorbing by plate type heat exchanger with plate type heat exchanger The used heat or useless cold collected from air draft；
Fresh air pretreatment device, it is arranged at fresh air inlet for carrying out pretreatment to fresh air；
First fresh air channel, it is connected fresh air inlet with the second rack for fresh air is directed to into the second machine from fresh air inlet Cabinet；
Fresh air air intake blower fan, its be arranged on fresh air flow direction in the first fresh air channel after heat reclamation device for By the rack of Leads to new breeze first；And
Preheater, before it is arranged in fresh air air intake blower fan in the first fresh air channel；And
Second rack, it has：
Fresh air is exported, and it is used to send fresh air；
Second fresh air channel, it is connected the first fresh air channel for fresh air is directed to newly from the first rack with fresh air outlet Wind is exported；
Air cleaner, it includes being arranged in the fresh air terminal filter in fresh air exit；
Idle call indoor set, it includes dehumidifier, heater and the humidifier being arranged in the second fresh air channel；
Idle call outdoor machine, it includes digital variable volume direct-expansion type air-cooled unit for dehumidifier cooling；And
Fresh air air-out blower fan, it is used to export fresh air by fresh air discharges from the second rack；
Return air processes air-blow ceiling, and the air-blow ceiling is used to be arranged on the roof in medical room and by fresh air pipeline It is connected for introduction to fresh air with the fresh air outlet of medical air draft fresh air one rack, the air-blow ceiling has：
Static pressure chamber, it is used to mix fresh air and return air；
Orientation blower, the orientation blower is arranged in static pressure chamber and with fresh air pipeline and connects, wherein the orientation air-supply Utensil has the wind pushing hole of dorsad circulated air processing meanss so that the fresh air sent by wind pushing hole is anti-by the wall portion of air-blow ceiling Equably mix to form circulated air with return air after bullet；And
Circulated air processing meanss, it has the housing for isolating with static pressure chamber, and the circulated air processing meanss have：
Multiple blower fan filtering units, its circulated air entrance is connected with static pressure chamber and its circulated air outlet is directed at air-blow ceiling and filters The circulated air that mixes for introduction to return air and fresh air of layer and purification filtering is carried out to circulated air and by purified filtration Circulated air transfer to air-blow ceiling filter layer direction conveying；
Air-blow ceiling filter layer, it is used for the circulated air to being exported by blower fan filtering unit carries out purification filtering so that purified The circulated air of filtration is imported in medical room in the form of weak turbulent flow；And
Return air inlet, its connect with medical room and by return air passageway connect with static pressure chamber for by return air from medical room Between be incorporated in the static pressure chamber of air cleaning system.
2. air cleaning system according to claim 1, wherein the plurality of blower fan filtering unit is four blower fan filterings Unit, and the noise figure of each blower fan filtering unit is selected to be less than equal to 45dB.
3. air cleaning system according to claim 1, wherein the defecator of the plurality of blower fan filtering unit includes Blower fan, motor and noise elimination spiral case.
4. air cleaning system according to claim 1, wherein the wall portion in static pressure chamber is provided with porous muffler plate, and Acoustic filter is disposed with fresh air pipeline.
5. air cleaning system according to claim 1, wherein the lower end for processing air-blow ceiling in return air is disposed with enclosing, Air-flow for processing return air air-blow ceiling output carries out water conservancy diversion.
6. the air cleaning system according to one of claim 1 to 5, wherein the low noise block air cleaning system Including two return air paths, each return air path includes multiple return air inlets, and each return air path is respectively for the return air of input 50% Amount, wherein the return air wind speed of the return air inlet is controlled as less than or equal to 1m/s.
7. the air cleaning system according to one of claim 1 to 5, wherein the medical room includes：It is operating room, common Ward, Neonatal Ward, central supply room and ICU wards.
8. the air cleaning system according to one of claim 1 to 5, wherein the first rack also includes being arranged in fresh air inlet With the chemical filtering module between fresh air air intake blower fan for carrying out chemical filtering to fresh air, wherein described cross chemical filtering mould Block includes medium air filtration layer.
9. the air cleaning system according to one of claim 1 to 5, wherein adjusting the thickness of the air-blow ceiling filter layer And/or the folded filter paper of air-blow ceiling filter layer pitch and change air supply velocity so that the fresh air that is input into and return air with Weak turbulence form is entered in medical room.
10. the air cleaning system according to one of claim 1 to 5, wherein fresh-air fan and/or blower fan filtering unit And/or exhaust fan is equipped with brshless DC motor, wherein the rotating speed of the brshless DC motor can be adjusted infinitely.
11. air cleaning systems according to claim 10, wherein air cleaning system are configured to according to medical room Purity requirements adjust fresh-air fan and blower fan filtering unit brshless DC motor rotating speed.
12. air cleaning systems according to claim 11, wherein the medical room is operating room, and the air Cleaning system also includes operating room real-time detecting system, and the operating room real-time detecting system includes that temperature monitor, humidity are examined Instrument, wind speed detector, pressure difference detector and detection of particles instrument are surveyed, and the air cleaning system is configured to according to institute The temperature of detection, humidity, wind speed, pressure drop, particle concentration are adjusting the fresh-air fan and/or return air fan and/or row The rotating speed of the brushless DC blower of wind blower fan, the life-span of filter layer, air quantity and cleanliness factor and the straight swollen wind of regulation digital variable volume The cold of cold group.
13. air cleaning systems according to one of claim 1 to 5, wherein in the new of medical air draft fresh air one rack Gravity self-locking air door is respectively disposed with wind entrance and wind exhausting outlet, the gravity self-locking air door has：
Aerofoil, its size matches with air port；
Trip shaft, it passes through aerofoil that aerofoil is overturn around trip shaft；
Counterweight, it is arranged in one end of the aerofoil so that aerofoil keeps vertically closing air port in the case where external force is not received； And
Backstop, it is arranged in the top and/or bottom of air outlet for preventing aerofoil from reversely deflecting.
A kind of 14. operating rooms, it has the low noise block air cleaning system according to one of aforementioned claim.
CN201611214870.4A 2016-12-26 2016-12-26 Low-noise modular air purification system Pending CN106678966A (en)

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WO2020237742A1 (en) * 2019-05-24 2020-12-03 苏州安瑞可信息科技有限公司 Compact stacked data center based on fresh air and evaporative refrigeration, and combined structure thereof
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CN112524706B (en) * 2020-12-08 2021-12-03 四川斯普信信息技术有限公司 Control system and method for noise reduction and precooling of air-cooled air conditioner external unit and application
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TWI801299B (en) * 2021-02-08 2023-05-01 睿升科技有限公司 Peripheral wind outlets device
CN113237179A (en) * 2021-06-24 2021-08-10 河南省肿瘤医院 Multi-person ward air purification system and method
CN115031321A (en) * 2022-08-10 2022-09-09 廊坊康平空调制造有限公司 Ultrathin lightweight mechanical self-cleaning high and large space air conditioning system

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Application publication date: 20170517