An air conditioning system for general operating rooms
By combining air disinfection screens, multi-unit air conditioning components, and static pressure boxes, the safety issues of temperature and wind speed fields in general operating room air conditioning systems are solved, achieving uniform and stable air quality and improved safety in the operating room, while reducing system complexity and engineering costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA IPPR INT ENG CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-06-30
AI Technical Summary
In the existing technology, the air conditioning system of a general operating room is difficult to meet the safety requirements of the temperature field, wind speed field and surgical operation area in the operating room, especially the safety of the temperature field, wind speed field and surgical operation area in the operating room cannot be guaranteed.
The system employs a combination design of an air disinfection screen, a multi-split air conditioning unit, a plenum chamber, and an exhaust system. The air disinfection screen is located above the operating table. The air supply duct and fresh air duct of the multi-split air conditioning unit are connected to the plenum chamber. The air outlets of the plenum chamber are arranged side by side at intervals to ensure that clean air is delivered to the operating table in a concentrated manner. The plenum chamber stabilizes the airflow through unified air supply, and the exhaust system is used to discharge contaminated air.
It achieves uniform and stable temperature and wind speed fields in the operating room, improves the safety of the surgical area, reduces system complexity and engineering cost, and meets the air cleanliness and disinfection requirements of general operating rooms.
Smart Images

Figure CN224434586U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning technology, and in particular to an air conditioning system for use in general operating rooms. Background Technology
[0002] In recent years, the demand for general operating rooms has been increasing in many medical departments of newly built and renovated hospitals. Common types of general operating rooms include obstetric operating rooms, gynecological operating rooms, outpatient operating rooms, and emergency operating rooms. These general operating rooms are characterized by the use of local anesthesia, smaller surgical incisions, shorter operation times, and lower risk of infection. They are located in a dispersed manner and are relatively few in number. Medical staff are more concerned with the flexibility and convenience of use, stable and adjustable temperature, and do not have high requirements for indoor air cleanliness, but have relatively high requirements for disinfection of air and surface bacterial counts.
[0003] For general operating rooms, installing a purification air conditioning system according to the requirements of a clean operating room would be complex and costly. A simpler air conditioning system can meet the needs of general surgeries. Currently, general operating rooms commonly use air sterilizers and multi-split air conditioners. However, because the installation locations of these air sterilizers and multi-split air conditioners are often arbitrary, the temperature field, airflow field, and safety of the surgical operation area within the operating room cannot be guaranteed. Utility Model Content
[0004] This invention provides an air conditioning system for general operating rooms, which solves the problem that existing air conditioning systems for general operating rooms cannot meet the requirements for temperature field, wind speed field and safety of the surgical operation area in the operating room.
[0005] This utility model provides an air conditioning system for general operating rooms, including: an air disinfection screen disposed on the upper side of the operating table, the air disinfection screen having a first air outlet facing the operating table;
[0006] A multi-split air conditioning unit includes an indoor unit, a supply air duct, and a return air duct; the indoor unit is installed on the ceiling of the operating room, and the supply air duct and the return air duct are respectively connected to the indoor unit;
[0007] The fresh air duct is connected to the centralized fresh air system.
[0008] A static pressure box, wherein the air supply duct and the fresh air duct are both connected to the static pressure box, and the static pressure box has a second air supply port, which is arranged side by side with the first air supply port at intervals.
[0009] An exhaust system is used to draw in air from the operating room and exhaust it.
[0010] According to the present invention, an air conditioning system for general operating rooms is provided, wherein the side of the static pressure box is connected to the air supply duct and the fresh air duct respectively;
[0011] The second air outlet is located at the bottom of the static pressure box.
[0012] According to the present invention, an air conditioning system for general operating rooms is provided, wherein the second air outlet is a strip-shaped air outlet, and the strip-shaped air outlet is located beside the first air outlet.
[0013] According to the present invention, an air conditioning system for use in a general operating room is provided, wherein multiple indoor units are provided, and each indoor unit has a corresponding air supply duct and air return duct.
[0014] According to the present invention, an air conditioning system for use in a general operating room is provided, wherein the indoor unit is a high static pressure fan.
[0015] According to the present invention, an air conditioning system for use in a general operating room is provided, wherein the air disinfection screen further has a first return air vent;
[0016] The first return air inlet is located beside the first air supply inlet, and the first return air inlet of the air disinfection screen is located at the end away from the static pressure box.
[0017] According to the present invention, an air conditioning system for general operating rooms is provided, wherein the return air duct has a second return air inlet, the second return air inlet is located on the lower side of the operating room, and the second return air inlet is equipped with a filter and a louvered air outlet.
[0018] According to the present invention, an air conditioning system for general operating rooms is provided, wherein the louvered air outlets are arranged vertically and are ultra-low resistance, high efficiency, single-layer louvered air outlets.
[0019] According to the present invention, an air conditioning system for use in a general operating room is provided, wherein the exhaust assembly includes:
[0020] An exhaust duct, wherein an exhaust port is provided at one end of the exhaust duct facing the operating table;
[0021] An exhaust fan is installed on the exhaust duct.
[0022] According to the present invention, an air conditioning system for use in a general operating room includes an exhaust assembly that further comprises:
[0023] Rainproof louvers are installed on the outer wall of the operating room and connected to the exhaust duct.
[0024] The air conditioning system provided by this utility model for general operating rooms, by setting an air disinfection screen on the upper side of the operating table, and pointing the first air supply outlet toward the operating table, and connecting the air supply duct and fresh air duct of the multi-split air conditioning unit to the static pressure box, so that the second air supply outlet of the static pressure box also faces the operating table and is arranged side by side with the first air supply outlet at intervals. Compared with the large installation space required by clean air conditioning systems, this embodiment occupies less space, and the static pressure box can ensure the uniformity and stability of the temperature field and wind speed field in the operating room through unified air supply. Moreover, the clean air delivered by the second air supply outlet and the first air supply outlet can be concentrated and delivered to the operating table, improving the safety of the operation. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a top view of the air conditioning system for general operating rooms provided by this utility model.
[0027] Figure 2 This is a front view of the air conditioning system for general operating rooms provided by this utility model.
[0028] Figure label:
[0029] 1. Air disinfection screen; 11. First air supply vent; 12. First return air vent;
[0030] 2. Multi-split air conditioning unit; 21. Indoor unit; 22. Supply air duct; 23. Return air duct; 231. Second return air vent;
[0031] 3. Fresh air duct;
[0032] 4. Static pressure box; 41. Second air outlet;
[0033] 5. Exhaust assembly; 51. Exhaust duct; 52. Exhaust fan; 53. Rainproof louvers; 511. Exhaust vent;
[0034] 100. Operating table. Detailed Implementation
[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0036] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of clarifying the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0037] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.
[0038] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0040] The following is combined Figures 1 to 2 The present invention will provide a detailed description of the air conditioning system for general operating rooms provided by the present invention through specific embodiments and application scenarios.
[0041] like Figure 1 and Figure 2 As shown, this embodiment provides an air conditioning system for general operating rooms, including: an air disinfection screen 1, a multi-split air conditioning unit 2, a fresh air duct 3, a static pressure box 4, and an exhaust unit 5.
[0042] An air sterilization screen 1 is located on the upper side of the operating table 100. The air sterilization screen 1 has a first air outlet 11, which faces the operating table 100.
[0043] The multi-split air conditioning unit 2 includes an indoor unit 21, a supply air duct 22, and a return air duct 23; the indoor unit 21 is located on the ceiling of the operating room, and the supply air duct 22 and the return air duct 23 are respectively connected to the indoor unit 21.
[0044] Fresh air duct 3 is connected to the centralized fresh air system.
[0045] Both the air supply duct 22 and the fresh air duct 3 are connected to the static pressure box 4. The static pressure box 4 has a second air supply port 41, which is arranged side by side with the first air supply port 11 at intervals.
[0046] The exhaust unit 5 is used to draw in air from the operating room and exhaust it.
[0047] Understandably, the air disinfection screen 1 integrates a coarse filter, a medium-efficiency filter, a fan, a lysozyme filter, and a high-efficiency filter into a single unit for air circulation filtration and disinfection within the operating room. Air from the operating room enters the air disinfection screen 1 through the first return air vent 12, where it undergoes filtration of fine dust particles, hair, and large dust particles. The lysozyme filter can sterilize and disinfect, and also inactivates viruses. It effectively filters airborne dust particles with an equivalent diameter greater than or equal to 0.3 μm, achieving air disinfection and purification while simultaneously sterilizing the air.
[0048] In this embodiment, the air disinfection screen 1 is located on the upper side of the operating table 100. The filtered and disinfected air blown out from the first air outlet 11 is blown directly above the operating table 100 to ensure that the air in the area of the operating table 100 can always have the quality after filtration and disinfection, thereby achieving disinfection and purification of the air in the area near the operating table 100.
[0049] The multi-split air conditioning unit 2 can provide air with a specific temperature and airflow speed to the operating room and regulate the humidity of the air in the operating room. In this embodiment, the indoor unit 21 of the multi-split air conditioning unit 2 is installed in the ceiling of the operating room to save installation space and ensure the aesthetics of the operating room.
[0050] Fresh air duct 3 is connected to the building's centralized fresh air system.
[0051] The plenum chamber 4 is used to regulate and stabilize the airflow in the operating room, ensuring that the air cleanliness, temperature, humidity, and pressure control in the operating room meet the high standards required for a medical environment. The plenum chamber 4 reduces wind speed by increasing the cross-sectional area of the airflow channel, resulting in uniform air distribution and avoiding localized turbulence or dead zones; it also maintains a quiet environment in the operating room by reducing noise generated by fan and duct vibration; and it maintains the pressure in the operating room in conjunction with the fresh air duct 3. In this embodiment, the air supplied by the air supply duct 22 of the multi-split air conditioning unit 2 and the air supplied by the fresh air duct 3 are both sent into the plenum chamber 4 and then discharged through the second air outlet 41 of the plenum chamber 4, blowing towards the operating table 100. Since the air in both the multi-split air conditioning unit 2 and the fresh air duct 3 is output through the plenum chamber 4, the airflow delivered by the second air outlet 41 is ensured to be uniform and consistent, thereby improving the uniformity and stability of the temperature and wind speed fields within the operating room.
[0052] Furthermore, since the second air outlet 41 and the first air outlet 11 of the air disinfection screen 1 are arranged side by side and spaced apart, the clean air delivered by the air disinfection screen 1 and the clean air delivered by the static pressure box 4 can both act on the operating table 100, increasing the air circulation in the area where the operating table 100 is located and ensuring the surgical safety of the operating table 100.
[0053] The exhaust unit 5 is used to exhaust the respiratory waste gas of the surgical personnel in the operating table area 100 to the outside, ensuring a reasonable pressure gradient in the operating room.
[0054] The air conditioning system provided by this utility model for general operating rooms, by setting an air disinfection screen 1 on the upper side of the operating table 100, and facing the operating table 100 with the first air outlet 11, and connecting the air supply duct 22 and fresh air duct 3 of the multi-split air conditioning unit 2 to the static pressure box 4, so that the second air outlet 41 of the static pressure box 4 also faces the operating table 100 and is arranged side by side with the first air outlet 11 at intervals. Compared with the large installation space required by the clean air conditioning system, this embodiment occupies less space, and the static pressure box 4 can ensure the uniformity and stability of the temperature field and wind speed field in the operating room through unified air supply. Moreover, the clean air delivered by the second air outlet 41 and the first air outlet 11 can be concentrated and delivered to the operating table 100, which improves the safety of the operation.
[0055] like Figure 1 and Figure 2 As shown, the side of the static pressure box 4 in this embodiment is connected to the air supply duct 22 and the fresh air duct 3, respectively.
[0056] The second air outlet 41 is located at the bottom of the static pressure box 4.
[0057] Understandably, in this embodiment, the static pressure chamber 4 and the air disinfection screen 1 are arranged side by side, and the static pressure chamber 4 has a square structure. The static pressure chamber 4 has an opening on its side. The fresh air duct 3 and the air supply duct 22 are both installed within the suspended ceiling of the operating room. The fresh air duct 3 and the air supply duct 22 are connected to different openings to supply air into the static pressure chamber 4. The bottom of the static pressure chamber 4 has a second air outlet 41, which faces vertically downwards.
[0058] The length of the static pressure chamber 4 is parallel to the length of the operating table 100. The inlet of the static pressure chamber 4 is located on the side, and the second air outlet 41 is located at the bottom of the static pressure chamber 4. The airflow path of the static pressure chamber 4 is relatively short, which facilitates the layout of the fresh air duct 3 and the air supply duct 22 installed in the ceiling, and also allows the second air outlet 41 to be placed in the area of the operating table 100, thus achieving a compact layout of the operating room space.
[0059] like Figure 2 As shown, the second air outlet 41 in this embodiment is a strip-shaped air outlet, which is located next to the first air outlet 11.
[0060] Understandably, the elongated shape of the strip-shaped air outlet allows for uniform airflow over a wide area, reducing dead zones. Compared to diffuser-shaped air outlets, the strip-shaped outlet reduces localized airflow fluctuations, minimizes turbulence, and prevents the spread of pollutants. Furthermore, by adjusting the guide vanes within the strip-shaped outlet, the airflow direction of the second air outlet 41 can be precisely controlled, ensuring that clean air covers the area of the operating table 100.
[0061] The strip-shaped air outlet blows vertically downwards. Because the strip-shaped air outlet is close to the first air outlet 11, the clean air in the static pressure box 4 and the clean air in the air disinfection screen 1 can complement each other, forming an air curtain in the operating table 100 area, which significantly improves the air quality in the operating table 100 area and ensures medical safety.
[0062] like Figure 1 As shown, this embodiment has multiple indoor units 21, each of which has a corresponding air supply duct 22 and return air duct 23.
[0063] It is understood that the indoor unit 21 in this embodiment is provided in multiple units. The multiple indoor units 21 can work together to adjust the temperature, humidity and wind speed field in the operating room by adjusting the number of units turned on and adjusting the air volume, so that the adjustment of the temperature, humidity and wind speed field in the operating room is controllable and sensitive.
[0064] In this embodiment, multiple indoor units 21 and fresh air ducts 3 can be arranged side by side in the ceiling of the operating room. Multiple air supply ducts 22 and fresh air ducts 3 corresponding to multiple indoor units 21 are arranged side by side at intervals and are all connected to the static pressure box 4.
[0065] like Figure 1 As shown, the indoor unit 21 in this embodiment is a high static pressure fan.
[0066] Understandably, high static pressure fans can overcome the resistance of multi-split air conditioner return air filters, ensuring that indoor circulating air is filtered before being delivered to the surgical work area, thus improving air quality.
[0067] like Figure 1 and Figure 2 As shown, the air disinfection screen 1 in this embodiment also has a first return air vent 12.
[0068] The first return air outlet 12 is located beside the first air supply outlet 11, at the end of the first return air outlet 12 away from the static pressure box 4.
[0069] Understandably, the first return air vent 12 is located beside the first supply air vent 11. The first return air vent 12 can draw contaminated air from the operating room into the air disinfection screen 1 for preliminary disinfection and cleaning, thereby achieving air cleanliness in the operating table area 100 and improving the safety of the operation.
[0070] like Figure 2 As shown, the return air duct 23 of this embodiment has a second return air inlet 231, which is located on the lower side of the operating room. The second return air inlet 231 is equipped with a filter and a louvered air outlet.
[0071] Understandably, in this embodiment, the second return air vent 231 is located at the bottom of the operating room wall, realizing an upward supply and downward return airflow field for the multi-split air conditioning unit 2, and achieving overall airflow circulation within the multi-split air conditioning unit 2. Since a filter is installed at the second air vent, the air in the operating room is drawn into the second return air vent 231 and filtered, thus undergoing preliminary purification of the indoor air.
[0072] like Figure 2 As shown, the louvered air vents in this embodiment are arranged vertically, and the louvered air vents are ultra-low resistance, high efficiency, single-layer louvered air vents.
[0073] Understandably, ultra-low resistance and high efficiency louvered air vents can effectively filter particulate matter, hair, and other pollutants from the air, improving the quality of circulating air.
[0074] like Figure 1 and Figure 2 As shown, the exhaust assembly 5 in this embodiment includes an exhaust pipe 51 and an exhaust fan 52.
[0075] An exhaust port 511 is provided at one end of the exhaust duct 51 facing the operating table 100; an exhaust fan 52 is installed on the exhaust duct 51.
[0076] Understandably, the exhaust fan 52 provides exhaust power for the airflow in the exhaust duct 51, enabling the contaminated air in the operating room to be discharged in a timely manner. Since the exhaust duct 51 faces the operating table 100, the contaminated air in the area of the operating table 100 can be drawn in by the exhaust port 511 and discharged in a timely manner through the exhaust duct 51.
[0077] like Figure 1 and Figure 2 As shown, the ventilation component 5 in this embodiment also includes a rainproof louver 53.
[0078] Rainproof louvers 53 are installed on the outer wall of the operating room and connected to the exhaust duct 51.
[0079] Understandably, the rainproof louvers 53 not only provide ventilation but also effectively block rainwater, preventing rainwater from flowing back in and polluting the operating room environment, without affecting normal ventilation on rainy days. The rainproof louvers 53 are installed on the outer wall of the operating room, and the air in the operating room is exhausted to the outside through the exhaust duct 51.
[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An air conditioning system for general operating rooms, characterized by, include: An air sterilization screen is installed on the upper side of the operating table. The air sterilization screen has a first air outlet, which faces the operating table. Multi-split air conditioning unit, including indoor unit, supply air duct and return air duct; The indoor unit is installed on the ceiling of the operating room, and the air supply duct and the return air duct are respectively connected to the indoor unit; The fresh air duct is connected to the centralized fresh air system. A static pressure box, wherein the air supply duct and the fresh air duct are both connected to the static pressure box, and the static pressure box has a second air supply port, which is arranged side by side with the first air supply port at intervals. An exhaust system is used to draw in air from the operating room and exhaust it.
2. The air conditioning system for general operating rooms according to claim 1, characterized in that, The side of the static pressure box is connected to the air supply duct and the fresh air duct, respectively; The second air outlet is located at the bottom of the static pressure box.
3. The air conditioning system for general operating rooms according to claim 2, wherein The second air outlet is a strip-shaped air outlet, which is located next to the first air outlet.
4. The air conditioning system for general operating rooms according to claim 1, wherein The indoor unit is provided in multiple units, and each indoor unit has a corresponding air supply duct and air return duct.
5. The air conditioning system for general operating rooms according to claim 1 or 4, wherein The indoor unit is a high static pressure fan.
6. The air conditioning system for general operating rooms according to claim 1, wherein The air disinfection screen also has a first return air vent; The first return air inlet is located beside the first air supply inlet, and the first return air inlet of the air disinfection screen is located at the end away from the static pressure box.
7. The air conditioning system for general operating rooms according to claim 1, wherein The return air duct has a second return air inlet located on the lower side of the operating room. The second return air inlet is equipped with a filter and a louvered air vent.
8. The air conditioning system for general operating rooms according to claim 7, wherein The louvered air vents are arranged vertically, and the louvered air vents are ultra-low resistance, high efficiency, single-layer louvered air vents.
9. The air conditioning system for general operating rooms according to claim 1, wherein The exhaust assembly includes: An exhaust duct, wherein an exhaust port is provided at one end of the exhaust duct facing the operating table; An exhaust fan is installed on the exhaust duct.
10. The air conditioning system for general operating rooms according to claim 9, wherein The exhaust assembly also includes: Rainproof louvers are installed on the outer wall of the operating room and connected to the exhaust duct.