CN217929118U - A novel ventilation control system for positive negative pressure of wisdom operating room switches - Google Patents
A novel ventilation control system for positive negative pressure of wisdom operating room switches Download PDFInfo
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- CN217929118U CN217929118U CN202222394979.8U CN202222394979U CN217929118U CN 217929118 U CN217929118 U CN 217929118U CN 202222394979 U CN202222394979 U CN 202222394979U CN 217929118 U CN217929118 U CN 217929118U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a novel ventilation control system that is used for positive negative pressure of wisdom operating room to switch relates to operating room clean equipment technical field. The fresh air device is characterized by comprising a fresh air device, wherein an air circulation and purification device is arranged on one side of the fresh air device, a fresh air pipeline is arranged between the fresh air device and the air circulation and purification device, and a sealed valve M2 is arranged on the fresh air pipeline; the air circulation purification device is provided with a circulation pipeline I and a circulation pipeline II, the end part of the circulation pipeline I is connected with a positive-negative pressure conversion operating room, the circulation pipeline I is provided with a closed valve M3, the end part of the circulation pipeline II is connected with an adjacent room, and the circulation pipeline II is provided with a conversion valve; the beneficial effects of the utility model reside in that: the ventilation efficiency of positive negative pressure switching in the operating room can be improved.
Description
Technical Field
The utility model relates to an operating room clean equipment technical field specifically is a novel ventilation control system that is used for positive negative pressure of wisdom operating room to switch.
Background
For the positive-negative pressure conversion operating room, the positive-negative pressure conversion operating room is the integration of the positive pressure operating room and the negative pressure operating room, so when the purification air-conditioning system is considered, the positive pressure working condition and the negative pressure working condition are comprehensively considered. In the positive pressure state, aiming at common patients, the ventilation system mainly protects the surgical patients, and the ventilation system can exhaust air without a high-efficiency filter and only adopts a primary and intermediate-efficiency filter. Under the negative pressure state, aiming at infectious disease patients, in particular to severe respiratory infectious disease patients, in order to protect the surrounding environment outside the room and avoid the infection inside and outside the hospital caused by the leakage of pollutants, a high-efficiency filter is arranged at an indoor air exhaust inlet. Namely, the environment in the operating room is protected from being polluted by the surrounding environment when the operating room operates under the positive pressure working condition, and the environment outside the operating room is protected when the operating room operates under the negative pressure working condition, so that the infectious aerosol is prevented from leaking.
As shown in the attached figure 1, in the positive and negative pressure conversion operating room in the prior art, the airflow organization of the positive and negative pressure conversion operating room is that the air is sent from top to bottom and exhausted from the top. Air in the operating room flows to the circulating unit through an air return inlet, a coarse or medium-efficiency filter is arranged in the air return inlet, the return air and the fresh air are mixed and enter a circulating air case, and the mixture is sent into the operating room after being purified; the other part of air in the operating room is filtered by a medium-efficiency filter in the exhaust fan box through an indoor air outlet and then is exhausted to the outside. The operating room is provided with an air outlet and two exhaust fans, one positive pressure working condition operates, the low exhaust air volume is low, one negative pressure working condition operates, the high exhaust air volume is high, and the positive pressure or negative pressure state of the operating room is realized through the conversion of the two exhaust fans.
Because this kind of operating room purifies air conditioning system and uses the return air, and set up in indoor return air inlet and the exhaust fan case and be the medium efficiency filter, only be applicable to for ordinary patient to carry out the operation, when the patient that accessible airborne infects carries out the operation in this kind of operating room, pathogenic microorganism spreads, cross infection risk is great. On one hand, the pathogenic microorganisms suspended in the indoor air can be discharged to the ambient environment through the exhaust air, and on the other hand, the pathogenic microorganisms can enter the air handling unit along with the return air and flow out along with the condensed water at the surface air cooler, so that the pollutants are leaked.
SUMMERY OF THE UTILITY MODEL
For solving the not enough of prior art, the utility model provides a novel ventilation control system that is used for positive negative pressure of wisdom operating room to switch, it can improve the ventilation efficiency that the positive negative pressure of operating room switches.
The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:
a novel ventilation control system for positive and negative pressure switching of an intelligent operating room comprises a fresh air device, wherein an air circulation purification device is arranged on one side of the fresh air device, a fresh air pipeline is arranged between the fresh air device and the air circulation purification device, and a sealed valve M2 is arranged on the fresh air pipeline;
the air circulation purification device is provided with a circulation pipeline I and a circulation pipeline II, the end part of the circulation pipeline I is connected with a positive-negative pressure conversion operating room, the circulation pipeline I is provided with a closed valve M3, the end part of the circulation pipeline II is connected with an adjacent room, and the circulation pipeline II is provided with a conversion valve;
the positive and negative pressure conversion operating room is provided with an exhaust pipeline I and an exhaust pipeline II, the exhaust pipeline I is provided with an exhaust fan P1 and a sealed valve M4, the sealed valve M4 is positioned between the positive and negative pressure conversion operating room and the exhaust fan P1, the exhaust pipeline II is provided with an exhaust fan P2 and a sealed valve M1, and the sealed valve M1 is positioned between the positive and negative pressure conversion operating room and the exhaust fan P2;
be equipped with exhaust pipe way III on the adjacent room, be equipped with filter and sealed valve M5 on the exhaust pipe way III, the filter is located between adjacent room and the sealed valve M5, exhaust pipe way III's port communicates with each other with exhaust pipe way II, exhaust pipe way III and exhaust pipe way II intercommunication position department are located between sealed valve M1 and exhaust fan P2.
The fresh air pipeline is provided with an air volume adjusting valve T2, the circulating pipeline I is provided with an air volume adjusting valve T3, and the exhaust pipeline I is provided with an air volume adjusting valve T3.
Contrast prior art, the beneficial effects of the utility model are that:
the utility model adopts an independent purifying air conditioning system in the middle and positive pressure conversion operating room, thereby avoiding cross contamination caused by sharing the air conditioning system with other areas; the positive pressure operating room and the negative pressure operating room are freely switched, the pollution control requirements can be met under two operating conditions, namely the environment in the operating room is protected from being polluted by the surrounding environment when the positive pressure operating condition operates, the environment outside the operating room is protected when the negative pressure operating condition operates, the infectious aerosol is prevented from leaking, and the ventilation efficiency of positive and negative pressure switching of the operating room is improved.
Drawings
FIG. 1 is a schematic structural diagram of a conventional positive-negative pressure switching operating room;
FIG. 2 is a schematic structural diagram of a positive-negative pressure switching operating room according to the present application;
fig. 3 is a schematic diagram of the module connection of the present application.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.
The utility model provides a novel ventilation control system for positive negative pressure of wisdom operating room switches, includes the new trend device, the new trend device is used for producing the new trend, sends the operating room to through new trend pipeline and air cycle purifier. An air circulation and purification device is arranged on one side of the fresh air device, a fresh air pipeline is arranged between the fresh air device and the air circulation and purification device, and a closed valve M2 is arranged on the fresh air pipeline; the air circulation purification device is provided with a circulation pipeline I and a circulation pipeline II, the end part of the circulation pipeline I is connected with a positive-negative pressure conversion operating room, the circulation pipeline I is provided with a closed valve M3, the end part of the circulation pipeline II is connected with an adjacent room, and the circulation pipeline II is provided with a conversion valve; the positive and negative pressure conversion operating room is provided with an exhaust pipeline I and an exhaust pipeline II, the exhaust pipeline I is provided with an exhaust fan P1 and a sealed valve M4, the sealed valve M4 is positioned between the positive and negative pressure conversion operating room and the exhaust fan P1, the exhaust pipeline II is provided with an exhaust fan P2 and a sealed valve M1, and the sealed valve M1 is positioned between the positive and negative pressure conversion operating room and the exhaust fan P2;
the adjacent room is provided with an exhaust pipeline III, as shown in attached figures 2 and 3, the exhaust pipeline is arranged at the lower air port of the operating room, a certain distance is reserved between the fresh air port and the exhaust port, and the air pollution of the fresh air port caused by air leakage of the exhaust port is strictly prevented; be equipped with filter and airtight valve M5 on the exhaust duct III, the filter in exhaust duct III adopts high efficiency filter, and exhaust duct I and exhaust duct II internal medicine select just well effect filter according to the condition is nimble. The filter is located between adjacent room and airtight valve M5, exhaust pipe III's port communicates with each other with exhaust pipe II, exhaust pipe III and exhaust pipe II intercommunication position department are located between airtight valve M1 and exhaust fan P2. Through the mutual cooperation of 5 airtight valves and 2 exhaust fans, can enough reduce the energy waste, can effectively guarantee again positive negative pressure ventilation system's requirement for quality.
Furthermore, an air volume adjusting valve T2 is arranged on the fresh air pipeline, an air volume adjusting valve T3 is arranged on the circulating pipeline I, and an air volume adjusting valve T3 is arranged on the exhaust pipeline I. The air volume adjusting valve can adjust the air volume, further optimizes the adjustment of the ventilation system,
the working principle is as follows:
(1) Under the positive pressure state, the purification air-conditioning system is in a primary circulation operation working condition, the closed valves M1 and M5 are closed, the closed valves M2, M3 and M4 are opened, the exhaust fan P2 does not operate, the exhaust fan P1 operates, the air volume regulating valve T2 on the fresh air pipeline is in a low air volume state, and the air volume regulating valve T3 on the circulation pipeline I is in a high air volume state.
(2) Under the negative pressure state, when a common infectious disease patient is operated, the purification air-conditioning system is in a primary circulation operation working condition, the closed valve M5 is closed, the M1, the M2, the M3 and the M4 are opened, the exhaust fans P1 and P2 are operated, the air volume adjusting valve T2 on the fresh air pipeline is in a medium air volume state, the air volume adjusting valve T3 on the circulation main pipe is in a low air volume state, and the air volume adjusting valve T1 on the exhaust main pipe is in a low air volume state.
(3) In the negative pressure state, when the operation is performed on the patient with the fulminating infection disease, if the purifying air-conditioning system is set to be a full fresh air operation working condition, the closed valves M1, M2 and M5 and the change-over valve are opened, the valves M3 and M4 are closed, the exhaust fans P1 and P2 are operated, the air volume adjusting valve T1 on the exhaust main pipe is in a high air volume state, and the air volume adjusting valve T2 on the fresh air pipe is in a high air volume state.
(4) When the system stops running, the closed valve M2 on the fresh air pipeline is closed.
In addition, it should be noted that the innovative part of the present application lies in the mutual cooperation of 5 airtight valves and fresh air pipelines, circulation pipelines, exhaust pipelines, 2 exhaust fans, and 3 air volume adjusting valves, and the other parts, such as the arrangement of the primary and secondary small filters in the exhaust pipelines I and II, the arrangement of the components such as check valves, silencers, and fire-proof valves, and the specific structures of the fresh air device and the air circulation purification device, do not belong to the innovative part of the present application, and therefore are not described in detail.
In addition, as optimization, an exhaust fan and a blower of the positive-negative pressure conversion operating room purification air conditioning system are interlocked, when the negative pressure working condition runs, the exhaust fan is started before the blower, and then the blower is closed; the interlocking sequence is opposite to the negative pressure working condition when the positive pressure working condition operates.
Preferably, pressure difference alarm can be set at each stage of air filter of the purification air-conditioning system, and the air supply high-efficiency filter and the air exhaust high-efficiency filter can be respectively represented by one filter, and the pressure difference alarm is set.
Preferably, the electric heater of the air conditioning system is interlocked with the blower, and is provided with a protection device for no-wind power-off and over-temperature power-off, and has an over-temperature alarm function.
The control of each closed valve can be controlled by the manual operation of medical staff, preferably, an air conditioner automatic control system can be adopted for control, the free conversion of different working conditions can be realized through the combined action of the fan frequency conversion and the electric closed valve, and the control of fresh air, air supply, air exhaust, temperature, relative humidity, static pressure difference, noise and air quality and the monitoring and displaying of various parameters of the operating room can be realized through the positive and negative pressure switching of the operating room.
Claims (2)
1. The utility model provides a novel ventilation control system that is used for positive negative pressure of wisdom operating room to switch, includes new trend device, its characterized in that: an air circulation and purification device is arranged on one side of the fresh air device, a fresh air pipeline is arranged between the fresh air device and the air circulation and purification device, and a closed valve M2 is arranged on the fresh air pipeline;
the air circulation purification device is provided with a circulation pipeline I and a circulation pipeline II, the end part of the circulation pipeline I is connected with a positive-negative pressure conversion operating room, the circulation pipeline I is provided with a closed valve M3, the end part of the circulation pipeline II is connected with an adjacent room, and the circulation pipeline II is provided with a conversion valve;
the positive and negative pressure conversion operating room is provided with an exhaust pipeline I and an exhaust pipeline II, the exhaust pipeline I is provided with an exhaust fan P1 and a sealed valve M4, the sealed valve M4 is positioned between the positive and negative pressure conversion operating room and the exhaust fan P1, the exhaust pipeline II is provided with an exhaust fan P2 and a sealed valve M1, and the sealed valve M1 is positioned between the positive and negative pressure conversion operating room and the exhaust fan P2;
be equipped with exhaust pipe way III on the adjacent room, be equipped with filter and sealed valve M5 on the exhaust pipe way III, the filter is located between adjacent room and the sealed valve M5, exhaust pipe way III's port communicates with each other with exhaust pipe way II, exhaust pipe way III and exhaust pipe way II intercommunication position department are located between sealed valve M1 and exhaust fan P2.
2. The novel ventilation control system for intelligent operating room positive and negative pressure switching as claimed in claim 1, wherein: the fresh air pipeline is provided with an air volume adjusting valve T2, the circulating pipeline I is provided with an air volume adjusting valve T3, and the exhaust pipeline I is provided with an air volume adjusting valve T3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222394979.8U CN217929118U (en) | 2022-09-08 | 2022-09-08 | A novel ventilation control system for positive negative pressure of wisdom operating room switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222394979.8U CN217929118U (en) | 2022-09-08 | 2022-09-08 | A novel ventilation control system for positive negative pressure of wisdom operating room switches |
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| Publication Number | Publication Date |
|---|---|
| CN217929118U true CN217929118U (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222394979.8U Active CN217929118U (en) | 2022-09-08 | 2022-09-08 | A novel ventilation control system for positive negative pressure of wisdom operating room switches |
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| Country | Link |
|---|---|
| CN (1) | CN217929118U (en) |
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2022
- 2022-09-08 CN CN202222394979.8U patent/CN217929118U/en active Active
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