CN1279319C - Diretional negative pressure fast installing type indoor air quality control method and device - Google Patents
Diretional negative pressure fast installing type indoor air quality control method and device Download PDFInfo
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- CN1279319C CN1279319C CN 03131841 CN03131841A CN1279319C CN 1279319 C CN1279319 C CN 1279319C CN 03131841 CN03131841 CN 03131841 CN 03131841 A CN03131841 A CN 03131841A CN 1279319 C CN1279319 C CN 1279319C
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- negative pressure
- plenum chamber
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Abstract
The present invention relates to a negative pressure fast assembly type indoor air quality control method and a device thereof. A bed head of a sickbed is manufactured into a bed head with the function of a still pressure box, a grid type air suction opening is arranged on the still pressure box of the bed head, and the still pressure box is connected with a blower box through an air passage and a flexible joint. When a blower works, negative pressure is generated in the still pressure box, air above the sickbed is sucked in through an air opening, and the air is output through the blower box, a heating and disinfecting section and a high pressure static electricity disinfecting section. The device comprises the blower box (8), a heating and disinfecting section (9) and a high pressure static electricity disinfecting section (10), and the operation of the device adopts interlocking control. When the blower is started, the heating and disinfecting section (9) and the high pressure static electricity disinfecting section (10) are started simultaneously, and the heating power is set according to the temperature of an outlet.
Description
One, technical field
The present invention relates to the control method and the device of indoor air quality, the particularly control of the air quality in respiratory infectious disease room (as SARS) and the ambulance.
Two, background technology
Breathe and infectious disease of the digestive tract especially the infectiousness of viral infectious is very strong, since the eighties, multiple this class communicate illness had appearred.Up-to-date as SARS so the very strong respiratory diseases of infectiousness.Breathing can " contact " by air with the virus of infectious disease of the digestive tract and infect, and for this reason, medical personnel need take multiple safeguard procedures to avoid infected.The major measure of taking at present is that patient is placed in the isolation ward, and medical personnel wear multilyer armor in treatment and nursing process.Simultaneously, in order to prevent that by infection through air hospital has also closed central air-conditioning.The fact shows although taked many safeguard procedures, in the SARS therapeutic process, still have large quantities of medical personnel infected, once causes the situation of medical personnel's wretched insufficiency in some city.
The fact shows that the one of the main reasons that causes medical personnel to infect is a problem of indoor air quality.Although the doctor has taked multiple quarantine measures, as long as doctor and the same air of patient respiration, so infected chance will be very big.Although we do not grasp the pathogenesis of SARS as yet, we can regard each SARS patient as a viral source.Near this source, the concentration of virus is high, similar with the aerial circulation way of toxic gas, virus can be propagated in the mode of diffusion to the lower place of concentration from the higher place of concentration, from the patient respiratory road, can produce local convection current simultaneously during breath, aggravated viral spread speed, added the motion of room air that other reason causes, will to produce one be a virus concentration field at center with SARS patient indoor.Because near the virus concentration SARS patient is very high, and medical personnel must be near the patient, so the possibility that is infected is just maximum.Although the doctor may change all carry-on articles that can change when leaving isolated area, but in the suction body, contact patient's chance is many for virus, and infected possibility has just increased greatly.In addition, because patient self also can suck the gas of having breathed out once more, formed a new virus circulation again, this treatment and recovery for the patient all is extremely harmful.
Adopt the ventilation of windowing at present, dilute concentration viral in the room air, but because gas flow is lacked effectively tissue, controlling the effect that infects might not be obvious with technical measures such as ventilation fan air drafts.In addition, be discharged into outdoor gas and lack effectively control, have pair surrounding environment to produce the possibility of secondary pollution.
This shows, infected for preventing medical personnel, tackle indoor air-flow and carry out rationalization, reduce the concentration of virus in the room air significantly.The suction type ward is a kind of device that prevents infection sources diffusion of the current international practice, but its cost height, its layout is always limited, and the needs of large-scale infectious disease patient's treatment more difficult to deal with also may not solve medical personnel and patient's protection question.
Three, summary of the invention
The objective of the invention is to propose a kind of indoor air quality control method and device; adopt the mode of exhaust ventilation to increase indoor ventilation volume; thereby reduce the concentration of room air virus, especially local have stronger exhaust ventilation, and medical personnel are had the better protection effect.The present invention also aims to adopting heating disinfection and high-pressure electrostatic disinfectant method to control the outdoor air quality of discharge.The object of the invention mainly is in order to provide dealing with of a kind of lower cost that extensive infectious disease patient is treated needs, and the carrying out in viral communication source better isolated.
(see figure 1) that the object of the present invention is achieved like this: the method for negative pressure ready-package indoor air quality control, be plenum chamber and inlet scoop to be installed at the sick bed head, produce negative pressure with the room air sucking-off by blower fan, outdoor through being discharged into after heating disinfection and the high-pressure electrostatic sterilization again; The present invention improves indoor air quality by the method for local air flow tissue.
The device of negative pressure ready-package indoor air quality control is made the head of a bed with plenum chamber function with the head of a bed 5 of sick bed 1, offers grating type inlet scoop 4 on head of a bed plenum chamber, and plenum chamber links to each other with air box 8 with flexible connecting member 7 by air channel 6.When blower fan is worked, in plenum chamber, produce negative pressure, the air of sick bed top is sucked by grating type inlet scoop 4, through the air channel 6, flexible connecting member 7 and air box 8 send into heating disinfection section 9, detect deferent segment 11 through being discharged to behind the heating disinfection to be discharged to after high-pressure electrostatic sterilization section 10 carries out disinfection, be discharged to outdoor at last.The Medical Devices band is installed above grating type inlet scoop 4, and equipment band top also is provided with folding transparent deflector 2, to improve deflector below air velocity.Owing to be transparent material, so that the patient can not feel is oppressive.
Device also comprises: head of a bed Medical Devices band, plenum chamber, grating type inlet scoop and the transparent deflector of folding are made one; And adopting the ready-package structure, indoor and outdoors respectively forms independently casing, is connected with flexible connecting member by the air channel; Air quantity is a step-less adjustment with adding heat.
Characteristics of the present invention are: the present invention improves indoor air quality by the method for local air flow tissue; increase indoor ventilation volume; thereby reduce the concentration of room air virus, especially local have stronger directed exhaust ventilation, and medical personnel are had the better protection effect.Cost is low.The method that adopts the sterilization of heating disinfection and high-pressure electrostatic to combine is controlled and is discharged outdoor air quality.Can be to the sick bed of a large amount of installations hospital for infectious diseases, to good protective action also being arranged as diseases such as hepatitis, severe colds.Convenient carrying out to the viral communication source better isolates.The ward can have free passage, and has also lowered medical personnel's protection load.
Apparatus of the present invention can be used simultaneously with split or window air conditioner, to improve indoor comfort.
The present invention is conceived to the control of air current composition and local air quality, and this point is different with general negative pressure ward and malleation isolated location.Another one characteristics of the present invention are that the ventilation of system is continuously adjustable with adding heat, can satisfy the requirement of ventilation under the different condition.The suction air-flow of trellis plate makes patient pleasant, and the double action of heating disinfection section 9 and high voltage electrostatic device can effective kill virus.Be better than the mode of ultraviolet, chemical agent generally speaking, and do not have other secondary pollution.
Four, description of drawings
Fig. 1 is a structure chart of the present invention
Fig. 2 is a draught fan control circuit structure chart of the present invention
Fig. 3 is a control circuit for heater structure chart of the present invention
Sick bed 1, transparent deflector 2, plenum chamber 3, grating type inlet scoop 4, the head of a bed 5, air channel 6, flexible connecting member 7, air box 8, heating disinfection section 9, high-pressure electrostatic sterilization section 10, detection deferent segment 11, power supply 21, air switch 22, relay 23, electrothermal relay 24, frequency converter 25, speed setting controller 26, motor 27, controllable silicon 35, heating controller 36, heater 37.
Five, the specific embodiment
The exhaust air rate of air box 8 adopts AC converter or AC voltage regulation controller to regulate, and the heat that adds in the heating disinfection section 9 then passes through SCR control.Form certain relation at air quantity and heating load, guarantee to save the energy under the prerequisite of kill virus, these are prior art, comprise that the technology of the unit employing of high-pressure electrostatic sterilization also is the electrostatic precipitator technology that present power plant extensively adopts.
Chain control is adopted in the operation of air box 8, heating disinfection section 9 and high-pressure electrostatic sterilization section 10, and in the time of fan starting, heating disinfection section 9 and high-pressure electrostatic sterilization section 10 start simultaneously, and heating power is set according to outlet temperature.Can also monitor disinfection and sterilization quality by means such as Bacteria Culture by detecting deferent segment 11.The control panel of whole device is installed in the ward inlet and the head of a bed respectively, and medical personnel can open big air quantity earlier and ventilate, and patient or medical personnel can use head of a bed controller to regulate air quantity as required, keep certain comfortableness when entering the ward.
This device adopts the ready-package structure, and parts 8～11 form integral installation outdoor, can reduce indoor noise with flexible connecting member 7.
Under the condition of big air quantity, the sneeze and the spittle have not had big influence to the air quality in room.
The structure of heating disinfection section 9 can adopt heating ceramic, utilize ceramic space runner that flow air is heated, it can also be the sheet metal convection current, by sheet metal crack flow air is heated, air is not directly to flow from the sheet metal crack, but by crooked runner, effectively kill virus.Particulate in the effective absorbed air of high voltage electrostatic device energy.
Claims (8)
1, negative pressure ready-package indoor air quality control method, it is characterized in that the head of a bed of sick bed is made the head of a bed with plenum chamber function, on head of a bed plenum chamber, offer the grating type inlet scoop, plenum chamber links to each other with air box with flexible connecting member by the air channel, when blower fan is worked, in plenum chamber, produce negative pressure, the air of sick bed top is sucked by the grating type inlet scoop, connect air channel (6) and air box (8) through the plenum chamber outlet, and heating disinfection section through linking to each other with air box and the output of high-pressure electrostatic sterilization section.
2, the device of negative pressure ready-package indoor air quality control, the head of a bed (5) that it is characterized in that sick bed (1) is made the head of a bed with plenum chamber function, on head of a bed plenum chamber, offer grating type inlet scoop (4), the plenum chamber outlet connects air channel (6) and flexible connecting member (7), and link to each other with air box (8), air box (8) connects heating disinfection section and high-pressure electrostatic sterilization section again.
3, by the device of the described negative pressure ready-package of claim 2 indoor air quality control, it is characterized in that folding transparent deflector (2) being installed in the top of grating type inlet scoop (4).
4, the device of controlling by the described negative pressure ready-package of claim 2 indoor air quality, the exhaust air rate that it is characterized in that air box (8), adopt AC converter or AC voltage regulation controller to regulate, the heat that adds in the heating disinfection section (9) then passes through SCR control.
5, the device of controlling by the described negative pressure ready-package of claim 2 indoor air quality, chain control is adopted in the operation that it is characterized in that air box (8), heating disinfection section (9) and high-pressure electrostatic sterilization section (10), in the time of fan starting, heating disinfection section (9) and high-pressure electrostatic sterilization section (10) start simultaneously, and heating power is set according to outlet temperature.
6, the device of controlling by the described negative pressure ready-package of claim 2 indoor air quality, it is characterized in that adopting the ready-package structure, parts air box (8), heating disinfection section (9) and high-pressure electrostatic sterilization section (10) form integral installation outdoor, and are connected the plenum chamber outlet with flexible connecting member (7) by the air channel.
7, the device of negative pressure ready-package indoor air quality control according to claim 3 is characterized in that plenum chamber, grating type inlet scoop and the transparent deflector of folding are made one.
8,, it is characterized in that heating disinfection section (9) utilizes pottery or METAL HEATING PROCESS sheet convection current space runner that flow air is heated by the device of the described negative pressure ready-package of claim 2 indoor air quality control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03131841 CN1279319C (en) | 2003-06-11 | 2003-06-11 | Diretional negative pressure fast installing type indoor air quality control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03131841 CN1279319C (en) | 2003-06-11 | 2003-06-11 | Diretional negative pressure fast installing type indoor air quality control method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1514176A CN1514176A (en) | 2004-07-21 |
| CN1279319C true CN1279319C (en) | 2006-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03131841 Expired - Fee Related CN1279319C (en) | 2003-06-11 | 2003-06-11 | Diretional negative pressure fast installing type indoor air quality control method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1279319C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592290B (en) * | 2018-05-29 | 2024-01-30 | 呼研所生物安全科技(广州)股份有限公司 | Protective device for isolating |
| CN111486529B (en) * | 2020-03-25 | 2021-03-30 | 西安建筑科技大学 | Pathogenic microorganism prevention and control ward air directional transmission device and air sterilization and killing system |
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2003
- 2003-06-11 CN CN 03131841 patent/CN1279319C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1514176A (en) | 2004-07-21 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061011 Termination date: 20120611 |