CN212179154U - Air volume variable ventilation system for flat epidemic combined hospital - Google Patents
Air volume variable ventilation system for flat epidemic combined hospital Download PDFInfo
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- CN212179154U CN212179154U CN202020707115.5U CN202020707115U CN212179154U CN 212179154 U CN212179154 U CN 212179154U CN 202020707115 U CN202020707115 U CN 202020707115U CN 212179154 U CN212179154 U CN 212179154U
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Abstract
The utility model discloses a tie epidemic combines hospital's variable air volume ventilation system, including doctorsing and nurses the corridor, the ward that surge chamber and a plurality of set up side by side, every ward all is equipped with new trend branch road fan and the branch road fan of airing exhaust, each fan all adopts the variable air volume fan, every ward all is equipped with air quality sensor and pressure differential sensor, air quality sensor is connected with the new trend branch road fan electricity that corresponds, pressure differential sensor is connected with the branch road fan electricity of airing exhaust that corresponds, the supply-air outlet in every ward is higher than the air exit and constitutes the air current form of row of sending down, the mounting height in new trend mouth must not be less than two meters, the mounted position of air exit is less than the. This ventilation system compromises the user demand under two kinds of states of tie epidemic, accomplishes when establishing the hospital and ventilate the design, avoids the flat epidemic that changes in later stage to waste time and energy, and running cost is low under the state at ordinary times, and energy saving and consumption reduction can carry out the fast switch-over under the epidemic situation state, strives for more rescue time for the patient to ensure medical personnel's safety.
Description
Technical Field
The utility model belongs to the technical field of the ventilation system of hospital, concretely relates to tie epidemic combines hospital variable air volume ventilation system.
Background
The functional difference of the ventilation system is huge under the ordinary running state and epidemic situation running state of the hospital building. In the state of normal operation, the ventilation system mainly provides fresh air volume required by human respiration to ensure indoor air quality, and in the state, the fresh air ventilation frequency generally required by a ward is 2 times/h, the air volume is small, and meanwhile, the pressure difference gradient in the ward is not strictly required. When the negative pressure ward is used as a negative pressure ward in an epidemic situation running state, the air exchange times in the ward are minimum 6 times/h, and the negative pressure ward with pressure difference gradient needs to be formed so as to ensure the directional flow of air and avoid cross infection.
The ventilation system design of synthesizing the hospital at present only designs according to the service behavior under the state at ordinary times, and the outbreak of new crown epidemic situation has highlighted the hospital of building according to this kind of design method, can not in time deal with the demand of epidemic situation, need carry on just can put into use after the transformation work that wastes time and energy, is unfavorable for striving for the time for patient's treatment, and there is a large amount of wasting of resources in the transformation work simultaneously.
SUMMERY OF THE UTILITY MODEL
In order to the above situation, the utility model aims at providing a can satisfy the variable air volume ventilation system of hospital that uses under running state and the epidemic situation running state at ordinary times simultaneously, can in time deal with when guaranteeing the epidemic situation outbreak, need not waste time and energy and reform transform, resources are saved strives for more time for the patient is salvaged.
Therefore, the utility model discloses the technical scheme who adopts does: a variable air volume ventilation system of a tie epidemic combination hospital comprises a medical corridor, a buffer room and a plurality of wards arranged in parallel, wherein the ventilation system comprises a main fresh air fan, a fresh air branch fan, an exhaust branch fan and a main exhaust fan, each ward is provided with the fresh air branch fan and the exhaust branch fan, the main fresh air fan is connected with each fresh air branch fan through a fresh air main pipe and then through a fresh air branch pipe, each exhaust branch fan is connected with the main exhaust fan through an exhaust branch pipe and then through an exhaust main pipe, the main fresh air fan, the fresh air branch fan, the main exhaust fan and the exhaust branch fan adopt variable air volume fans, each ward is provided with an air quality sensor and a pressure difference sensor, the air quality sensor is electrically connected with the corresponding fresh air branch fan, the pressure difference sensor is electrically connected with the corresponding exhaust branch fan, and an air supply outlet of each ward is higher than an air exhaust outlet to form an air flow form of upper air, the installation height of the fresh air inlet is not lower than two meters, and the installation position of the air outlet is lower than the height of a sickbed.
Preferably, each of the fresh air branch pipe and the exhaust branch pipe is provided with a closed air valve, or the fresh air branch fan and the exhaust branch fan are internally provided with a closed air valve, and the closed air valve is interlocked with the corresponding fresh air branch fan and the exhaust branch fan to be opened and closed.
Preferably, the main fresh air fan and the main exhaust fan are respectively provided with one fan, and fan installation positions are reserved at positions close to the main fresh air fan and the main exhaust fan and used for additionally installing the main fans connected in parallel under an epidemic situation operation state so as to increase the main fresh air volume and the main exhaust air volume. The problem that the performance life is influenced due to the fact that one fan is idle for a long time when two fans are installed at the same time is avoided.
Preferably, the main fresh air fan and the main exhaust fan are composed of two fans with one large exhaust volume and one small exhaust volume, the fan with the small exhaust volume is used in the normal running state, and the fan with the large exhaust volume is used in the epidemic running state. The two air outlets are selected to be used, so that the small air exhaust amount is used for a longer time in a normal state, and the energy-saving effect is better.
Further preferably, the tie epidemic combined hospital variable air volume ventilation system is further provided with a tie epidemic rapid switching device for rapidly switching the ordinary running state and the epidemic situation running state.
More preferably, the air quality sensor is independently selected from CO2Sensor or TVOC sensor, or CO2Sensors and TVOC sensors.
Preferably, the fresh air main pipe, the fresh air branch pipe, the air exhaust main pipe and the air exhaust branch pipe are assembled on site by adopting produced segments.
The utility model has the advantages that: this ventilation system compromises the user demand under two kinds of states of tie epidemic, accomplishes when establishing the hospital and ventilate the design, avoids the flat epidemic that changes in later stage to waste time and energy, and running cost is low under the state at ordinary times, and energy saving and consumption reduction can carry out the fast switch-over under the epidemic situation state, strives for more rescue time for the patient to ensure medical personnel's safety.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
as shown in figure 1, the air volume-variable ventilation system of the tie epidemic combined hospital is mainly composed of a main fresh air fan 1, a fresh air branch fan 2, an air exhaust branch fan 3, a main exhaust fan 4, an air quality sensor 5, a differential pressure sensor 6 and a transmission and distribution pipeline.
The hospital is provided with a medical corridor, a buffer room and a plurality of sickrooms which are arranged in parallel.
Each ward is provided with a fresh air branch fan 2 and an air exhaust branch fan 3, and air supply and exhaust are carried out on the wards corresponding to each ward. The main fresh air fan 1 is connected with each fresh air branch fan 2 through a fresh air main pipe and then through a fresh air branch pipe; each air exhaust branch fan 3 is connected with the main air exhaust fan 4 through an air exhaust branch pipe and then through an air exhaust main pipe; namely, the fresh air pipeline is divided first and then the exhaust pipeline is divided finally.
The main fresh air fan 1, the fresh air branch fan 2, the main exhaust fan 4 and the exhaust branch fan 3 are all variable air volume fans, and each ward is provided with an air quality sensor 5 and a pressure difference sensor 6. The air quality sensor 5 is used for monitoring the air quality, and the air quality is related to the fresh air quantity, so the air quality sensor 5 is electrically connected with the corresponding fresh air branch fan 2 and is used for controlling the air inlet quantity; the differential pressure sensor 6 is used for monitoring the differential pressure of the ward to ensure that the directional air flow of the medical care corridor, the buffer room and the ward is formed and is related to the air exhaust amount, so the differential pressure sensor 6 is electrically connected with the corresponding air exhaust branch fan 3 and is used for controlling the air exhaust amount.
The ventilation system is also provided with a quick switching device for switching between the normal running state and the epidemic situation running state, the air quality sensor 5 works under the normal running state, and the differential pressure sensor 6 works under the epidemic situation running state. Under epidemic situation, the pressure in the ward is generally required to be kept about-10 Pa. The air quality sensor 5 can independently select CO2Sensor or TVOC sensor, or CO2Sensors and TVOC sensors. Without being limited thereto, other types of air quality sensors may be selected.
The air supply outlet of each ward is higher than the air outlet to form an air flow form of up-supply and down-discharge, the installation height of the fresh air inlet is not lower than two meters, and the installation position of the air outlet is lower than the height of a sickbed. Under the epidemic situation, medical care personnel stand in the ward, and infectious disease patient adopts to lie on the sick bed, adopts the air current form of upper and lower row of sending to inject the mounting height position, ensures that the virus that the patient carried can only flow downwards along with the air current and discharges, can not form the threat to medical care personnel, prevents cross infection.
Preferably, each of the fresh air branch pipe and the exhaust branch pipe is provided with a closed air valve, or the fresh air branch fan 2 and the exhaust branch fan 3 are internally provided with closed air valves. The airtight air valve is opened and closed with the new trend branch fan 2 that corresponds, the branch fan 3 interlock of airing exhaust, satisfies every branch road can close alone under the epidemic situation, carries out indoor sterile demand.
During specific design, ventilation volume requirements under the epidemic situation state are calculated respectively, the main fan (comprising a main fresh air fan and a main exhaust fan) is preferably considered to be selected according to requirements meeting epidemic situation periods, the main fan operates with small air volume under the epidemic situation state at ordinary times, and can operate with large air volume in spring and autumn transition seasons, indoor waste heat and residual humidity are eliminated through ventilation, the operation time of an air conditioner is reduced, and the energy consumption of an air conditioning system is saved. The air-conditioning system runs according to the large air volume required by design under the epidemic situation, and meets the requirements of air dilution, pressure difference gradient realization and the like under the epidemic situation. The branch fans (including branch fresh air fans and branch exhaust fans) are selected according to the maximum value of the tail end air volume in two states according to the ventilation volume requirement in the calculation epidemic prevention state; the air flow is small in operation at ordinary times, and the air flow is large in operation in transitional seasons and epidemic periods when the number of people in a room is increased.
Preferably, the main fresh air fan 1 and the main exhaust fan 4 are composed of two fans with one large exhaust volume and one small exhaust volume, and the fan with the small exhaust volume is used in the normal operation state and the fan with the large exhaust volume is used in the epidemic operation state. Or, the main fresh air fan 1 and the main exhaust fan 4 are respectively provided with one fan, and fan mounting positions are reserved at positions close to the main fresh air fan 1 and the main exhaust fan 4 and used for additionally mounting the main fans connected in parallel under an epidemic situation running state so as to increase the main fresh air volume and the main exhaust air volume.
The fresh air main pipe, the fresh air branch pipe, the air exhaust main pipe and the air exhaust branch pipe are assembled on site by adopting produced segments. The traditional fresh air main pipe, the traditional fresh air branch pipe, the traditional air exhaust main pipe and the traditional air exhaust branch pipe are all formed by welding on-site iron sheets, so that the construction efficiency is low, the waiting time for putting into use is long, and the product consistency is poor.
Claims (7)
1. The utility model provides a tie epidemic combines hospital's variable blast volume ventilation system, includes the ward that medical corridor, surge chamber and a plurality of set up side by side, ventilation system includes main new trend fan (1), new trend branch road fan (2), air exhaust branch road fan (3), main exhaust fan (4), and every ward all is equipped with new trend branch road fan (2) and air exhaust branch road fan (3), main new trend fan (1) is earlier through the new trend dry tube, is continuous with every new trend branch road fan (2) through the new trend branch pipe again, and every air exhaust branch road fan (3) is earlier through the branch pipe of airing exhaust, is continuous with main exhaust fan (4) through the dry tube of airing exhaust again, its characterized in that: the novel air-conditioning system is characterized in that the main fresh air fan (1), the fresh air branch fan (2), the main exhaust fan (4) and the exhaust branch fan (3) are all variable air volume fans, each ward is provided with an air quality sensor (5) and a pressure difference sensor (6), the air quality sensor (5) is electrically connected with the corresponding fresh air branch fan (2), the pressure difference sensor (6) is electrically connected with the corresponding exhaust branch fan (3), an air supply outlet of each ward is higher than an air outlet to form an air flow form of upper air supply and lower air discharge, the installation height of the fresh air outlet is not lower than two meters, and the installation position of the air outlet is lower than the height of a sickbed.
2. The tie epidemic combined hospital variable air volume ventilation system of claim 1, characterized in that: and each fresh air branch pipe and each exhaust branch pipe are provided with an airtight air valve, or the fresh air branch fan (2) and the exhaust branch fan (3) are internally provided with airtight air valves, and the airtight air valves are interlocked with the corresponding fresh air branch fan (2) and the exhaust branch fan (3) to be opened and closed.
3. The tie epidemic prevention combined hospital variable air volume ventilation system according to claim 1 or 2, characterized in that: the main fresh air machine (1) and the main exhaust air machine (4) are respectively provided with one, and fan installation positions are reserved at positions close to the main fresh air machine (1) and the main exhaust air machine (4) and used for additionally installing the main parallel-connection fan under an epidemic situation running state so as to increase the main fresh air quantity and the main exhaust air quantity.
4. The tie epidemic prevention combined hospital variable air volume ventilation system according to claim 1 or 2, characterized in that: the main fresh air fan (1) and the main exhaust fan (4) are composed of two fans with one large exhaust volume and one small exhaust volume, the fan with the small exhaust volume is used in the normal running state, and the fan with the large exhaust volume is used in the epidemic running state.
5. The tie epidemic combined hospital variable air volume ventilation system of claim 1, characterized in that: the device is also provided with a quick switching device for switching the normal running state and the epidemic situation running state quickly.
6. The tie epidemic combined hospital variable air volume ventilation system of claim 1, characterized in thatIn the following steps: the air quality sensor (5) independently selects CO2Sensor or TVOC sensor, or CO2Sensors and TVOC sensors.
7. The tie epidemic combined hospital variable air volume ventilation system of claim 1, characterized in that: the fresh air main pipe, the fresh air branch pipe, the air exhaust main pipe and the air exhaust branch pipe are formed by splicing produced segments on site.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020707115.5U CN212179154U (en) | 2020-04-30 | 2020-04-30 | Air volume variable ventilation system for flat epidemic combined hospital |
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| CN202020707115.5U CN212179154U (en) | 2020-04-30 | 2020-04-30 | Air volume variable ventilation system for flat epidemic combined hospital |
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| CN212179154U true CN212179154U (en) | 2020-12-18 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251766A (en) * | 2021-12-30 | 2022-03-29 | 郑州大学综合设计研究院有限公司 | Intelligent fresh air system suitable for hospital and control method |
| WO2022134973A1 (en) * | 2020-12-23 | 2022-06-30 | 重庆海润节能技术股份有限公司 | Distributed ventilation system and control method for ward |
| CN114935192A (en) * | 2022-07-26 | 2022-08-23 | 广东呼研菲兰科技有限责任公司 | Energy-saving infection control system and method for respiratory infectious disease ward |
| CN114935191A (en) * | 2022-07-25 | 2022-08-23 | 广东呼研菲兰科技有限责任公司 | Ventilation control method and system for reducing cross infection of ward passing air |
| CN115059976A (en) * | 2022-06-28 | 2022-09-16 | 广州汇锦能效科技有限公司 | Negative pressure isolation ward differential pressure dynamic control system |
| CN115898094A (en) * | 2022-10-11 | 2023-04-04 | 广东省建工设计院有限公司 | Fixed-point hospital hospitalization medical care unit structure and zero-dismantling-modification rapid epidemic-leveling conversion method thereof |
-
2020
- 2020-04-30 CN CN202020707115.5U patent/CN212179154U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022134973A1 (en) * | 2020-12-23 | 2022-06-30 | 重庆海润节能技术股份有限公司 | Distributed ventilation system and control method for ward |
| CN114251766A (en) * | 2021-12-30 | 2022-03-29 | 郑州大学综合设计研究院有限公司 | Intelligent fresh air system suitable for hospital and control method |
| CN114251766B (en) * | 2021-12-30 | 2024-01-30 | 郑州大学综合设计研究院有限公司 | Intelligent fresh air system suitable for hospitals and control method |
| CN115059976A (en) * | 2022-06-28 | 2022-09-16 | 广州汇锦能效科技有限公司 | Negative pressure isolation ward differential pressure dynamic control system |
| CN114935191A (en) * | 2022-07-25 | 2022-08-23 | 广东呼研菲兰科技有限责任公司 | Ventilation control method and system for reducing cross infection of ward passing air |
| CN114935192A (en) * | 2022-07-26 | 2022-08-23 | 广东呼研菲兰科技有限责任公司 | Energy-saving infection control system and method for respiratory infectious disease ward |
| CN115898094A (en) * | 2022-10-11 | 2023-04-04 | 广东省建工设计院有限公司 | Fixed-point hospital hospitalization medical care unit structure and zero-dismantling-modification rapid epidemic-leveling conversion method thereof |
| CN115898094B (en) * | 2022-10-11 | 2024-03-19 | 广东省建工设计院有限公司 | Fixed-point hospital hospitalization medical unit structure and zero disassembly and modification quick epidemic conversion method thereof |
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