Precise humidity control air treatment system for clean operating room

Abstract

The utility model relates to the technical field of operating room fresh air systems, in particular to a precise humidity control air treatment system for a clean operating room, which comprises a pre-cooling air conditioning unit with a refrigerant direct expansion machine and an air circulation treatment unit, and the pre-cooling air conditioning unit and the air circulation treatment unit are sequentially mounted on an air inlet pipeline of the operating room. A fresh air opening of the air inlet pipeline is located in the top of the operating room, an air return pipe is arranged between an air outlet in the bottom of the operating room and the air circulation processing unit, a three-way connecting pipe is further arranged on the air return pipe, one air outlet of the three-way connecting pipe is connected with an air exhaust pipe, and an air purification device is installed on the air exhaust pipe. A first electronic valve and a second electronic valve are arranged on the three-way connecting pipe, and an operation module is further arranged in the operating room. According to actual needs, air in the operating room can be selected to be recycled, or the air in the operating room can be deeply treated and purified and discharged and is not recycled any more, and the air quality in the operating room can be guaranteed.

Description

Technical Field

[0001] This application relates to the field of operating room fresh air system technology, and in particular to a precision humidity control air handling system for a clean operating room. Background Technology

[0002] The operating room is a place for providing surgical and emergency care to patients and is an important technical department of the hospital. The operating room air purification system ensures a sterile environment, thus meeting the high sterility requirements of surgeries such as organ transplantation, cardiac, vascular, and artificial joint replacement. Article 3.2.17 of the "General Code for Energy Conservation and Renewable Energy Utilization in Buildings" (GB55015-2021) states: Except for air-conditioned areas with strict requirements for temperature and humidity fluctuation ranges, there should be no simultaneous heating and cooling processes in the same all-air conditioning system.

[0003] For example, Chinese patent application number CN202222565299.8 discloses a precision humidity control air handling system for a clean operating room, comprising: a pre-cooling air conditioning unit, the air inlet of which is configured as a fresh air inlet, the pre-cooling air conditioning unit including a direct expansion system, the pre-cooling air conditioning unit being used to generate treated fresh air; an air circulation handling unit, the air outlet of which is connected to the air inlet of the air circulation handling unit, the air circulation handling unit being equipped with a fan, a chilled water coil, and a hot water coil, the air outlet of which is connected to the corresponding operating room; and a return air duct, connecting the operating room and the air inlet of the air circulation handling unit.

[0004] Regarding the aforementioned technologies, the inventors believe that the following technical defects exist and require improvement:

[0005] After major surgeries, the air in the operating room contains a strong smell of blood, and in some special surgeries, it may also contain a large amount of anesthetic drug fumes that are not suitable for human absorption. The air in the operating room is directly connected to the air circulation unit through the return air duct. Under normal circumstances, these common air circulation units cannot quickly, efficiently and thoroughly purify the air in the operating room. Therefore, in some cases, the air in the operating room is not suitable for recirculation, and long-term use reduces the air quality in the operating room. Utility Model Content

[0006] This application provides a precision humidity control air handling system for clean operating rooms to improve the following technical problems:

[0007] The air in the operating room is directly connected to the air circulation handling unit through the return air duct. In some cases, the air in the operating room is not suitable for recirculation, and long-term use reduces the air quality in the operating room.

[0008] This application provides a precision humidity control air handling system for a clean operating room, employing the following technical solution:

[0009] A precision humidity control air handling system for a clean operating room includes a pre-cooling air conditioning unit with a refrigerant direct expansion compressor and an air circulation handling unit. The pre-cooling air conditioning unit and the air circulation handling unit are sequentially installed on the air inlet duct of the operating room. The fresh air inlet of the air inlet duct is located at the top of the operating room, and a return air duct is provided between the air outlet at the bottom of the operating room and the air circulation handling unit. The return air duct is characterized by having a T-junction connecting pipe, one outlet of which is connected to an exhaust duct. An air purification device is installed on the exhaust duct. The T-junction connecting pipe has a first electronic valve and a second electronic valve. The first electronic valve is located on the branch of the T-junction connecting pipe adjacent to the air circulation handling unit, and the second electronic valve is located on the branch of the T-junction connecting pipe adjacent to the air purification device. An operating module is also provided in the operating room, and the operating module is electrically connected to the first and second electronic valves through a main control box.

[0010] In one feasible technical solution of this application, the operation module includes a switch box installed on the wall of the operating room. The switch box is provided with a circulating air mode switch and an exhaust air mode switch. When the circulating air mode switch is turned on, the first electronic valve is normally open and the second electronic valve is normally closed. When the exhaust air mode switch is turned on, the first electronic valve is normally closed and the second electronic valve is normally open.

[0011] In one feasible technical solution of this application, the air purification device is a composite integrated air purifier equipped with a UV lamp and a negative ion generator.

[0012] In one feasible technical solution of this application, a flange connection plate is provided at each of the three openings of the three-way connecting pipe, and the flange connection plate is used to connect the return air pipe or the exhaust air pipe.

[0013] In one feasible technical solution of this application, a filter-type purifier is also provided on the return air duct, and the filter-type purifier is located at the front end of the air inlet of the three-way connecting pipe.

[0014] In one feasible technical solution of this application, the filter-type purifier is provided with a plurality of spaced HEPA filters, and the HEPA filters are detachably inserted and assembled onto the body of the filter-type purifier.

[0015] In one feasible technical solution of this application, a heat-insulating base is provided on the outer top of the operating room, and the pre-cooling air conditioning unit is installed on the heat-insulating base.

[0016] In one feasible technical solution of this application, an antistatic elastic rubber pad is provided on the top of the heat insulation base, and the bottom of the pre-cooling air conditioning unit is attached to the antistatic elastic rubber pad.

[0017] In one feasible technical solution of this application, the air circulation handling unit includes a housing and a fan, a chilled water coil, and an electric heating coil installed inside the housing. The chilled water coil is located between the fan and the electric heating coil. The chilled water coil reduces the temperature of the fresh air by water cooling, and the electric heating coil increases the temperature of the fresh air by heating with an electric heating wire.

[0018] In one feasible technical solution of this application, a mosquito protection cover is also provided at the outer port of the exhaust pipe.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] When personnel in the operating room perceive that the air is not suitable for recirculation, they can operate the module and the main control box to control the first electronic valve to be normally closed and the second electronic valve to be normally open. The exhaust air will then be deeply purified by the air purification device and discharged from the outer port of the exhaust pipe. When personnel in the operating room believe that the air is suitable for recirculation, they can operate the module and the main control box to control the first electronic valve to be normally open and the second electronic valve to be normally closed. The exhaust air will then directly enter the air circulation treatment unit through the return air duct for recycling.

[0021] The system of this application allows personnel in the operating room to freely choose to recycle the air in the operating room, or to deeply treat and purify the air in the operating room and then discharge it without recycling, which helps to ensure the air quality in the operating room. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a precision humidity control air handling system for a clean operating room according to an embodiment of this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Pre-cooling air conditioning unit; 11. Refrigerant direct expansion unit;

[0026] 2. Air circulation handling unit; 21. Fan; 22. Chilled water coil; 23. Electric heating coil;

[0027] 3. Air intake duct;

[0028] 4. Return air duct;

[0029] 5. T-connector; 51. First electronic valve; 52. Second electronic valve; 53. Flange connection plate;

[0030] 6. Exhaust duct; 61. Mosquito protection cover;

[0031] 7. Air purification device;

[0032] 8. Operation module; 81. Switch box; 82. Circulating air mode switch; 83. Exhaust air mode switch;

[0033] 9. Main control box;

[0034] 10. Filter-type air purifier; 100. HEPA filter;

[0035] 20. Heat-insulating base; 200. Anti-static elastic rubber pad. Detailed Implementation

[0036] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0037] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0038] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 this application.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0040] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.

[0041] This application discloses a precision humidity control air handling system for a clean operating room. (Refer to...) Figure 1 A precision humidity control air handling system for a clean operating room includes a pre-cooling air conditioning unit 1 with a refrigerant direct expansion unit 11 and an air circulation handling unit 2. The pre-cooling air conditioning unit 1 and the air circulation handling unit 2 are installed sequentially on the air inlet duct 3 of the operating room. The fresh air inlet of the air inlet duct 3 is located at the top of the operating room. A return air duct 4 is provided between the air outlet at the bottom of the operating room and the air circulation handling unit 2. The return air duct 4 is characterized by having a three-way connecting pipe 5. One air outlet of the three-way connecting pipe 5 is connected to an exhaust pipe 6. An air purification device 7 is installed on the exhaust pipe 6. A first electronic valve 51 and a second electronic valve 52 are provided on the three-way connecting pipe 5. The first electronic valve 51 is located on the branch of the three-way connecting pipe 5 near the air circulation handling unit 2, and the second electronic valve 52 is located on the branch of the three-way connecting pipe 5 near the air purification device 7. An operation module 8 is also provided in the operating room. The operation module 8 is electrically connected to the first electronic valve 51 and the second electronic valve 52 through a main control box 9.

[0042] In this embodiment, the operation module 8 includes a switch box 81 installed on the wall inside the operating room. The switch box 81 is provided with a circulating air mode switch 82 and an exhaust air mode switch 83. When the circulating air mode switch 82 is turned on, the first electronic valve 51 is normally open and the second electronic valve 52 is normally closed. When the exhaust air mode switch 83 is turned on, the first electronic valve 51 is normally closed and the second electronic valve 52 is normally open.

[0043] The air purification device 7 is a composite integrated air purifier equipped with a UV lamp and a negative ion generator. The three openings of the three-way connecting pipe 5 are all equipped with flange connecting plates 53, which are used to connect the return air pipe 4 or the exhaust air pipe 6.

[0044] To improve the air purification effect during the return air process, a filter-type purifier 10 is also installed on the return air duct 4. The filter-type purifier 10 is located at the front end of the air inlet of the three-way connecting pipe 5. The filter-type purifier 10 is equipped with multiple spaced HEPA filters 100. The HEPA filters 100 are detachably plugged into the body of the filter-type purifier 10.

[0045] To prevent the heat generated by the pre-cooling air conditioning unit 1 during operation from being transferred to the operating room, a heat insulation base 20 is installed on the top of the operating room. The pre-cooling air conditioning unit 1 is installed on the heat insulation base 20. An antistatic elastic rubber pad 200 is installed on the top of the heat insulation base 20, and the bottom of the pre-cooling air conditioning unit 1 is attached to the antistatic elastic rubber pad 200.

[0046] In this embodiment, the air circulation handling unit 2 includes a housing and a fan 21, a chilled water coil 22, and an electric heating coil 23 installed inside the housing. The chilled water coil 22 is located between the fan 21 and the electric heating coil 23. The chilled water coil 22 reduces the temperature of the fresh air by water cooling, and the electric heating coil 23 increases the temperature of the fresh air by heating with electric heating wires.

[0047] To prevent debris, mosquitoes, and rodents from entering the exhaust duct 6, a mosquito protection cover 61 is installed at the outer port of the exhaust duct 6.

[0048] The beneficial technical effects of a precision humidity control air handling system for a clean operating room according to an embodiment of this application are roughly as follows:

[0049] When personnel in the operating room notice that the air in the operating room is not suitable for recycling, they can operate module 8 and the main control box 9 to control the first electronic valve 51 to be normally closed and the second electronic valve 52 to be normally open. The exhaust air will then be deeply purified by the air purification device 7 and discharged from the outer port of the exhaust pipe 6. When personnel in the operating room believe that the air in the operating room is suitable for recycling, they can operate module 8 and the main control box 9 to control the first electronic valve 51 to be normally open and the second electronic valve 52 to be normally closed. The exhaust air will then directly enter the air circulation processing unit 2 through the return air pipe 4 for recycling.

[0050] The system of this application allows personnel in the operating room to freely choose to recycle the air in the operating room, or to deeply treat and purify the air in the operating room and then discharge it without recycling, which helps to ensure the air quality in the operating room.

[0051] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A clean operating room precision humidity control air handling system, comprising a pre-cooling air conditioning unit (1) with a refrigerant direct expansion machine (11) and an air circulation handling unit (2), the pre-cooling air conditioning unit (1) and the air circulation handling unit (2) are sequentially installed on the air inlet duct (3) of the operating room, the fresh air inlet of the air inlet duct (3) is located at the top of the operating room, and a return air pipe (4) is arranged between the air outlet at the bottom of the operating room and the air circulation handling unit (2), characterized in that, The return air pipe (4) is further provided with a three-way connecting pipe (5), an air outlet of the three-way connecting pipe (5) is connected with an exhaust pipe (6), the exhaust pipe (6) is installed with an air purification device (7), the three-way connecting pipe (5) is provided with a first electronic valve (51) and a second electronic valve (52), the first electronic valve (51) is located on a branch of the three-way connecting pipe (5) close to the air circulation treatment unit (2), the second electronic valve (52) is located on a branch of the three-way connecting pipe (5) close to the air purification device (7), and the operating module (8) is further provided in the operating room and is electrically connected with the first electronic valve (51) and the second electronic valve (52) through a total control box (9).

2. The precise humidity control air handling system for clean operating rooms according to claim 1, wherein, The operating module (8) comprises a switch box (81) installed on the inner wall of the operating room, the switch box (81) is provided with a circulating air mode switch (82) and an exhaust mode switch (83), when the circulating air mode switch (82) is turned on, the first electronic valve (51) is always open and the second electronic valve (52) is always closed, and when the exhaust mode switch (83) is turned on, the first electronic valve (51) is always closed and the second electronic valve (52) is always open.

3. The precise humidity control air handling system for clean operating rooms according to claim 1, wherein, The air purification device (7) is a composite integrated air purifier loaded with a UV lamp tube and a negative ion generator.

4. The precise control of humidity air treatment system for clean operating room according to claim 1, characterized in that, The three openings of the three-way connecting pipe (5) are all provided with flange connecting discs (53) for connecting the return air pipe (4) or the exhaust pipe (6).

5. The precise humidity control air handling system for clean operating rooms of claim 1, wherein, The return air pipe (4) is further provided with a filter screen type purifier (10), and the filter screen type purifier (10) is located at the front end of the air inlet of the three-way connecting pipe (5).

6. The precise humidity control air handling system for clean operating rooms according to claim 5, wherein, The filter screen type purifier (10) is provided with a plurality of HEPA filter screens (100) arranged at intervals, and the HEPA filter screens (100) are detachably inserted and assembled on the body of the filter screen type purifier (10).

7. The precise humidity control air handling system for clean operating rooms of claim 1, wherein, The outer top of the operating room is provided with a heat insulation base (20), and the pre-cooling air conditioning unit (1) is installed on the heat insulation base (20).

8. The precise humidity control air handling system for clean operating rooms according to claim 7, characterized in that, The top of the heat insulation base (20) is provided with an anti-static elastic rubber pad (200), and the bottom of the pre-cooling air conditioning unit (1) is attached to the anti-static elastic rubber pad (200).

9. The precise control of humidity air treatment system for clean operating room according to claim 1, characterized in that, The air circulation treatment unit (2) comprises a box body and a fan (21), a cold water coil (22) and an electric heating coil (23) installed in the box body, the cold water coil (22) is located between the fan (21) and the electric heating coil (23), the cold water coil (22) reduces the temperature of fresh air by water cooling, and the electric heating coil (23) increases the temperature of fresh air by electric heating.

10. The precise humidity control air handling system for clean operating rooms of claim 1, wherein, The outer end of the exhaust pipe (6) is further provided with a mosquito protection cover (61).

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