CN111076335B - Negative pressure isolation ward fresh air system and debugging method thereof - Google Patents
Negative pressure isolation ward fresh air system and debugging method thereof Download PDFInfo
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- CN111076335B CN111076335B CN201911340814.9A CN201911340814A CN111076335B CN 111076335 B CN111076335 B CN 111076335B CN 201911340814 A CN201911340814 A CN 201911340814A CN 111076335 B CN111076335 B CN 111076335B
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- negative pressure
- air
- isolation ward
- exhaust
- air volume
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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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
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
- F24F2011/0002—Control or safety arrangements for ventilation for admittance of outside air
- F24F2011/0005—Control or safety arrangements for ventilation for admittance of outside air to create underpressure in a room, keeping contamination inside
Abstract
The invention belongs to the field of negative pressure wards, and particularly relates to a negative pressure isolation ward fresh air system and a debugging method thereof, wherein the negative pressure isolation ward fresh air system comprises a negative pressure isolation ward, a fresh air system and an exhaust system, wherein the fresh air system is communicated with the negative pressure isolation ward; a fresh air volume adjusting valve is arranged between the fresh air system and the negative pressure isolation ward; an air exhaust air quantity regulating valve is arranged between the air exhaust system and the negative pressure isolation ward; the negative pressure isolation ward is internally provided with a negative pressure gauge. Whether new trend system, the exhaust system that design lectotype had both can be clear and definite to check in the debugging process of this application satisfies negative pressure isolation ward operation requirement, negative pressure value and the number of times of taking a breath in adjustment negative pressure isolation ward that also can be quick, effective, accurate.
Description
Technical Field
The invention belongs to the field of negative pressure wards, and particularly relates to a negative pressure isolation ward fresh air system and a debugging method thereof.
Background
In order to deal with the epidemic situation of the sudden infectious diseases, a safe working environment is provided for medical staff. More and more three hospitals construct negative pressure isolation wards, and the internal pressure of the wards is lower than the external pressure by configuring a specific device, so that the air polluting infectious disease germs is prevented from leaking to the outside, and physical protection is provided for medical personnel.
The negative pressure isolation ward specified in the infectious disease hospital building design specification should adopt a full fresh air straight-flow type air conditioning system, so for the negative pressure isolation ward, the air volume flowing through the negative pressure isolation ward is fresh air volume, air discharge volume and gap air intake volume. And the air exhaust amount is equal to the fresh air amount plus the gap air intake amount.
The existing debugging method is to fix the fresh air volume valve at a certain fixed angle, and control the air volume of air exhaust by adjusting the size of the air volume valve of air exhaust, thereby adjusting the size of the pressure difference. However, this debugging method suffers from difficulties: (1) because negative pressure keeps apart the ward and is the negative pressure relatively other rooms, the new trend in other rooms can be followed the new trend pipeline and inhaled negative pressure and keep apart the ward, when the negative pressure value strengthens, is attracted into the new amount of wind in negative pressure isolation ward and will be big more, so under the new trend air volume valve keeps motionless state, the new trend that negative pressure value and the negative pressure that gets into kept apart the ward is positive correlation, and the new trend will be in the state of fluctuating. (2) The air inlet volume of the gap is influenced by the pressure difference value of the two sides of the gap, the air inlet volume of the gap is reduced under the condition of small pressure, and the air inlet volume of the gap is increased under the condition of large pressure.
Therefore, by utilizing the existing debugging method, the fresh air volume, the air exhaust volume and the gap air intake volume are all in a fluctuation state in the debugging process, and the debugging difficulty is increased. Therefore, the improper debugging can lead to the negative pressure value of the negative pressure isolation ward to be lower or the number of times of ventilation to be insufficient, and the requirement for the negative pressure isolation ward in the specification is not met, so that the effect of the negative pressure isolation ward cannot be effectively exerted, and how to debug the negative pressure isolation ward can be faster, more convenient and more accurate, and the technical problem needs to be solved by technical personnel in the field.
Meanwhile, by utilizing the existing debugging method, the fresh air volume entering the negative pressure isolation ward is increased along with the rise of the negative pressure value, the fresh air volume is often larger than the design value, and in order to debug out a proper negative pressure value, the exhaust air volume can only be adjusted to be in a larger state, thereby causing the waste of energy. If the negative pressure value and the ventilation frequency required by the negative pressure isolation ward can not be debugged due to improper design, how to ensure the effect of the negative pressure isolation ward and simultaneously achieve energy-saving operation, how to quickly find out improper design factors and solve the technical problems which are also needed to be solved by technical personnel in the field.
Disclosure of Invention
The invention aims to provide a fresh air system for a pressure isolation ward and a debugging method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fresh air system for a negative pressure isolation ward comprises a negative pressure isolation ward, a fresh air system and an exhaust system, wherein the fresh air system is communicated with the negative pressure isolation ward; a fresh air volume adjusting valve is arranged between the fresh air system and the negative pressure isolation ward; an air exhaust air quantity regulating valve is arranged between the air exhaust system and the negative pressure isolation ward; the negative pressure isolation ward is internally provided with a negative pressure gauge.
The invention comprises a debugging method of the fresh air system of the negative pressure isolation ward, which comprises the following steps:
1) closing a passage door between the negative pressure isolation ward and the outside to ensure that the negative pressure isolation ward and the outside have no air volume exchange;
2) opening a fresh air system, opening a fresh air volume regulating valve to the maximum opening degree, and confirming the fresh air volume at the moment through an air volume cover air volume instrument;
3) opening an exhaust system, opening an exhaust air volume regulating valve to the maximum opening, confirming exhaust air volume through an air volume cover air volume instrument, and confirming whether the exhaust air volume meets the ventilation volume requirement; if the requirement of ventilation volume is not met, the design air volume of the exhaust system is proved to be too small, and the exhaust fan needs to be replaced or the frequency of the exhaust fan needs to be improved so as to improve the air volume of the exhaust system; if the ventilation volume requirement is met, determining whether the air exhaust volume is larger than the fresh air volume; if the air volume of the exhaust air is smaller than the air volume of the fresh air, the design air volume of the fresh air is proved to be larger, and the air volume of the fresh air needs to be adjusted to be smaller than the air volume of the exhaust air; if the amount of wind of airing exhaust is greater than the new trend amount of wind, can observe the negative pressure manometer, and when the negative pressure value risees gradually, when being close to the requirement negative pressure value, turn down new trend air valve aperture gradually:
4) when the negative pressure value is not reduced any more, stopping adjusting the fresh air valve; at the moment, the negative pressure isolation ward can adjust the required negative pressure value and the ventilation frequency.
Compared with the prior art, the invention has the beneficial effects that:
whether new trend system, the exhaust system that the design lectotype had both been can be clear and definite to check in the debugging process of this application satisfies negative pressure isolation ward operation requirement, also can be quick, effective, accurate adjustment negative pressure keep apart the negative pressure value in ward and the number of times of taking a breath, when also can guaranteeing number of times of taking a breath and negative pressure value, reduce the running energy consumption, reach energy-conserving effect, guarantee medical personnel operational environment's safety. In addition, as the equipment ages and the gap changes, the scheme still has high operability for subsequent maintenance and maintenance adjustment work of the negative pressure isolation ward.
Drawings
FIG. 1 is a schematic view of the overall structure of a fresh air system of a negative pressure isolation ward of the present invention;
FIG. 2 shows a flow chart of the debugging method of the fresh air system in the negative pressure isolation ward of the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
Fig. 1 shows a fresh air system for a negative pressure isolation ward, which comprises a negative pressure isolation ward 1, a fresh air system 2 communicated with the negative pressure isolation ward and an exhaust system 5; a fresh air volume adjusting valve 3 is arranged between the fresh air system and the negative pressure isolation ward; an air exhaust air quantity regulating valve 6 is arranged between the air exhaust system and the negative pressure isolation ward; and a negative pressure gauge 5 is arranged in the negative pressure isolation ward.
Fig. 2 shows a flowchart of a debugging method of a fresh air system in a negative pressure isolation ward, which comprises the following steps:
1) closing a passage door between the negative pressure isolation ward and the outside to ensure that the negative pressure isolation ward and the outside have no air volume exchange;
2) opening a fresh air system, opening a fresh air volume regulating valve to the maximum opening degree, and confirming the fresh air volume at the moment through an air volume cover air volume instrument;
3) opening an exhaust system, opening an exhaust air volume regulating valve to the maximum opening, confirming exhaust air volume through an air volume cover air volume instrument, and confirming whether the exhaust air volume meets the ventilation volume requirement; if the requirement of ventilation volume is not met, the design air volume of the exhaust system is proved to be too small, and the exhaust fan needs to be replaced or the frequency of the exhaust fan needs to be improved so as to improve the air volume of the exhaust system; if the ventilation volume requirement is met, determining whether the air exhaust volume is larger than the fresh air volume; if the air volume of the exhaust air is smaller than the air volume of the fresh air, the design air volume of the fresh air is proved to be larger, and the air volume of the fresh air needs to be adjusted to be smaller than the air volume of the exhaust air; if the amount of wind of airing exhaust is greater than the new trend amount of wind, can observe the negative pressure manometer, and when the negative pressure value risees gradually, when being close to the requirement negative pressure value, turn down new trend air valve aperture gradually:
4) when the negative pressure value is not reduced any more, stopping adjusting the fresh air valve; at the moment, the negative pressure isolation ward can adjust the required negative pressure value and the ventilation frequency.
Whether new trend system, the exhaust system that the design lectotype had both been can be clear and definite to check in the debugging process of this application satisfies negative pressure isolation ward operation requirement, also can be quick, effective, accurate adjustment negative pressure keep apart the negative pressure value in ward and the number of times of taking a breath, when also can guaranteeing number of times of taking a breath and negative pressure value, reduce the running energy consumption, reach energy-conserving effect, guarantee medical personnel operational environment's safety. In addition, as the equipment ages and the gap changes, the scheme still has high operability for subsequent maintenance and maintenance adjustment work of the negative pressure isolation ward.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (1)
1. A new air system of a negative pressure isolation ward is characterized by comprising a negative pressure isolation ward, a new air system and an exhaust system, wherein the new air system is communicated with the negative pressure isolation ward; a fresh air volume adjusting valve is arranged between the fresh air system and the negative pressure isolation ward; an air exhaust air quantity regulating valve is arranged between the air exhaust system and the negative pressure isolation ward; a negative pressure gauge is arranged in the negative pressure isolation ward;
the debugging method of the fresh air system of the negative pressure isolation ward comprises the following steps:
1) closing a passage door between the negative pressure isolation ward and the outside to ensure that the negative pressure isolation ward and the outside have no air volume exchange;
2) opening a fresh air system, opening a fresh air volume regulating valve to the maximum opening degree, and confirming the fresh air volume at the moment through an air volume cover air volume instrument;
3) opening an exhaust system, opening an exhaust air volume regulating valve to the maximum opening, confirming exhaust air volume through an air volume cover air volume instrument, and confirming whether the exhaust air volume meets the ventilation volume requirement; if the requirement of ventilation volume is not met, the design air volume of the exhaust system is proved to be too small, and the exhaust fan needs to be replaced or the frequency of the exhaust fan needs to be improved so as to improve the air volume of the exhaust system; if the ventilation volume requirement is met, determining whether the air exhaust volume is larger than the fresh air volume; if the air volume of the exhaust air is smaller than the air volume of the fresh air, the design air volume of the fresh air is proved to be larger, and the air volume of the fresh air needs to be adjusted to be smaller than the air volume of the exhaust air; if the amount of wind of airing exhaust is greater than the new trend amount of wind, can observe the negative pressure manometer, and when the negative pressure value risees gradually, when being close to the requirement negative pressure value, turn down new trend air valve aperture gradually:
4) when the negative pressure value is not reduced any more, the adjustment of the fresh air valve is stopped, and the negative pressure isolation ward can adjust the required negative pressure value and the required ventilation times.
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| CN201911340814.9A CN111076335B (en) | 2019-12-23 | 2019-12-23 | Negative pressure isolation ward fresh air system and debugging method thereof |
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| CN111076335B true CN111076335B (en) | 2022-02-15 |
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| CN111981591A (en) * | 2020-06-23 | 2020-11-24 | 美埃(中国)环境科技股份有限公司 | Negative pressure ward is with purifier that airs exhaust |
| WO2021258443A1 (en) * | 2020-06-24 | 2021-12-30 | 深圳市巨鼎医疗股份有限公司 | Negative-pressure control method and apparatus for isolation ward, storage medium, and isolation ward |
| CN112083750B (en) * | 2020-09-08 | 2022-06-07 | 合肥哈工智能医疗科技有限公司 | Isolation cabin negative pressure control system and control method based on flow and pressure difference real-time feedback |
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