Indoor air purification system for operating room and operation method of indoor air purification system

Abstract

The invention relates to an operating room indoor air purification system and an operation method thereof.The operating room indoor air purification system comprises a pretreatment unit, an efficient filtering unit, an air supply unit, an exhaust unit and a control system, and the pretreatment unit communicates with the efficient filtering unit through an air pipe; the pretreatment unit adopts a primary filter to remove large particles and dust in air; the efficient filtering unit adopts an HEPA efficient filter to further remove harmful substances such as tiny particulate matter, bacteria and viruses in air, the air supply unit adopts a laminar flow air supply mode to evenly supply purified air into an operating room, the air exhaust unit adopts a mechanical air exhaust mode to exhaust contaminated air in the operating room, and the control system adopts a PLC. The system is in charge of operation and control of the whole system and adjustment of parameters such as air flow, air speed, temperature and humidity, in addition, the system is further provided with an air quality monitoring unit, the air quality in the operating room is monitored in real time, and the operation state of the system is automatically adjusted according to the monitoring result.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification, and in particular to an indoor air purification system of an operating room and an operating method thereof. Background Art

[0002] The clean operating room is an important treatment department in the hospital. It consists of clean operating rooms and related auxiliary rooms. According to the requirements of the national standard, the clean operating room can be built into an independent area consisting of all clean operating rooms and related auxiliary rooms, or it can be built into an intersection area consisting of clean operating rooms, ordinary standard operating rooms and clean auxiliary rooms. Patients are at risk of infection during and after surgery. Some researchers have proposed that hospital air conditioning systems are one of the important means to prevent and treat diseases. Studies have shown that patients generally recover faster in a suitable air-conditioned environment than in an unconditioned environment. In addition to the traditional control of indoor temperature and humidity, another important purpose of the operating room purification air conditioning system is to control the number of suspended microorganisms in the indoor air by ventilating and filtering the air. Because the concentration of bacteria in the air is an important cause of postoperative infection, studies have shown that floating bacteria (including viruses) in the air rarely exist alone. Most of them are carried by dust and adhere to dust. 25% of wound infections are caused by bacteria attached to dust in the air. Therefore, as an important part of clean surgery, the clean operating room plays an important role in preventing infection in patients during surgery, and an important way to achieve infection control in the clean operating room is the air purification system;

[0003] The operating room is a place in the medical environment that has extremely high requirements for air cleanliness. Its air quality is directly related to the success rate of surgery and the recovery of patients. Traditional air purification methods often have problems such as low purification efficiency, high energy consumption, and complex maintenance, which cannot meet the strict requirements of modern operating rooms for air quality. Therefore, it is particularly important to develop an efficient, energy-saving, and easy-to-maintain indoor air purification system for operating rooms. Summary of the invention

[0004] The purpose of the present invention is to provide an operating room indoor air purification system and an operating method thereof, so as to solve the problem in the prior art that only a single-layer screen is used for grain screening, which cannot completely separate impurities in the grain, thereby affecting subsequent color sorting operations.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an indoor air purification system for an operating room and an operating method thereof, comprising a pretreatment unit, a high-efficiency filtration unit, an air supply unit, an exhaust unit and a control system, wherein the pretreatment unit is connected to the high-efficiency filtration unit through an air duct, the high-efficiency filtration unit is connected to the air supply unit through an air duct, and the control system is electrically connected to the pretreatment unit, the high-efficiency filtration unit, the air supply unit and the exhaust unit.

[0006] Preferably, the pre-treatment unit adopts a primary filter to preliminarily purify the air entering the system and remove large particles and dust.

[0007] Preferably, the high-efficiency filtration unit adopts a HEPA high-efficiency filter to further remove harmful substances such as tiny particles, bacteria and viruses in the air.

[0008] Preferably, the air supply unit adopts a laminar air supply mode, and is responsible for evenly delivering the purified air into the operating room to ensure the cleanliness of the air in the operating room.

[0009] Preferably, the exhaust unit adopts a mechanical exhaust method to discharge the dirty air in the operating room to form an air circulation.

[0010] Preferably, the control system adopts a PLC controller, which is responsible for the operation and control of the entire system, including the adjustment of parameters such as air flow, wind speed, temperature and humidity.

[0011] Preferably, the system may also include an air quality monitoring unit to monitor the air quality in the operating room in real time and automatically adjust the operating state of the system according to the monitoring results.

[0012] The present invention has at least the following beneficial effects:

[0013] The pretreatment unit of the present invention adopts a primary filter to remove large particles and dust in the air. The high-efficiency filtration unit adopts a HEPA high-efficiency filter to further remove harmful substances such as tiny particles, bacteria and viruses in the air. The air supply unit adopts a laminar air supply method to evenly deliver the purified air into the operating room. The exhaust unit adopts a mechanical exhaust method to exhaust the dirty air in the operating room. The control system adopts a PLC controller, which is responsible for the operation and control of the entire system, including the adjustment of parameters such as air flow, wind speed, temperature and humidity. In addition, the system is also equipped with an air quality monitoring unit to monitor the air quality in the operating room in real time and automatically adjust the operating status of the system according to the monitoring results. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural module diagram of the present invention;

[0015] Figure 2 It is a schematic diagram of the structure of the system of the present invention.

[0016] In the accompanying drawings: 1. pre-treatment unit; 2. high-efficiency filtration unit; 3. air supply unit; 4. exhaust unit; 5. air quality monitoring unit; 6. control system; 7. primary filter; 8. HEPA high-efficiency filter; 9. laminar air supply mode; 10. mechanical exhaust mode; 11. PLC controller. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 2 The present invention provides a technical solution: an indoor air purification system for an operating room and an operation method thereof, comprising a pretreatment unit 1, a high-efficiency filter unit 2, an air supply unit 3, an exhaust unit 4 and a control system 6, the pretreatment unit 1 is connected to the high-efficiency filter unit 2 through an air duct, the high-efficiency filter unit 2 is connected to the air supply unit 3 through an air duct, and the control system 6 is electrically connected to the pretreatment unit 1, the high-efficiency filter unit 2, the air supply unit 3 and the exhaust unit 4;

[0019] The pre-treatment unit 1 uses a primary filter 7 to preliminarily purify the air entering the system and remove large particles and dust. The outer frame of the primary filter is composed of a solid waterproof board to fix the folded filter material. The diagonal design on the outer frame can provide a large filtering area and make the internal filter material adhere tightly to the outer frame. The filter is bonded to the outer frame with special professional adhesive glue on all sides to prevent air leakage or damage caused by wind resistance pressure.

[0020] The high-efficiency filtration unit 2 uses a HEPA high-efficiency filter 8 to further remove harmful substances such as tiny particles, bacteria and viruses in the air. The HEPA high-efficiency filter 8 has a filtration efficiency of ≥99.97% for particles with a diameter of ≥0.3 microns (such as dust, pollen, bacteria, viruses, etc.), and the filtration efficiency for particles of 0.1 microns can reach 99.998% under some standards. The HEPA high-efficiency filter 8 is made of materials such as sub-glass fiber membrane, polypropylene or polyethylene terephthalate, and adopts a multi-layer wavy folding design to increase the filtration area;

[0021] The air supply unit 3 adopts the laminar air supply mode 9, which is responsible for evenly delivering the purified air into the operating room to ensure the air cleanliness in the operating room. The laminar air supply ceiling adopts the German FFA technology and belongs to the second generation of dust-free purification products. This equipment, as the purification air supply terminal of the clean operating room and laminar flow ward, has the functions of high-efficiency filtration, equal flow and airflow compensation;

[0022] The exhaust unit 4 adopts a mechanical exhaust method 10, which is responsible for exhausting the polluted air in the operating room to form an air circulation. Mechanical exhaust is a system that forcibly exhausts the polluted air in the room through a fan power device, and uses air ducts and air outlets to control the air flow in a directional manner to ensure that harmful gases, dust or odors are efficiently discharged outdoors;

[0023] The control system 6 uses a PLC controller 11, which is responsible for the operation and control of the entire system, including the adjustment of parameters such as air flow, wind speed, temperature and humidity;

[0024] The system may also include an air quality monitoring unit 5, which monitors the air quality in the operating room in real time and automatically adjusts the operating state of the system according to the monitoring results;

[0025] During the operation, the system runs continuously to ensure that the air quality in the operating room is always kept within a safe range. When the air quality monitoring unit 5 detects a decrease in air quality, the control system 6 will automatically adjust the wind speed and flow rate of the supply and exhaust air to improve the purification efficiency. At the same time, the application of variable frequency speed regulation technology also enables the system to automatically adjust the operating state according to the air demand in the operating room and reduce energy consumption.

[0026] Working principle: When in use, the operating room transports outdoor air to the interior of the primary filter 7 through the air duct. The primary filter 7 is used to preliminarily purify the air entering the system to remove large particles and dust. The primary filtered air is then transported to the HEPA high-efficiency filter 8 through the air duct. The HEPA high-efficiency filter 8 further removes harmful substances such as tiny particles, bacteria and viruses in the air. Finally, the purified air is evenly delivered to the operating room through the air supply unit 3 to ensure the air cleanliness in the operating room. The exhaust unit 4 adopts a mechanical exhaust method 10, which is responsible for discharging the dirty air in the operating room to form an air circulation. During the operation, the system continues to operate to ensure that the air quality in the operating room is always maintained within a safe range. When the air quality monitoring unit 5 detects a decrease in air quality, the control system 6 will automatically adjust the wind speed and flow rate of the supply and exhaust air to improve the purification efficiency. At the same time, the application of variable frequency speed regulation technology also enables the system to automatically adjust the operating state according to the air demand in the operating room to reduce energy consumption.

[0027] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An indoor air purification system for an operating room and an operating method thereof, comprising a pretreatment unit (1), a high-efficiency filtering unit (2), an air supply unit (3), an air exhaust unit (4) and a control system (6), characterized in that: The pre-treatment unit (1) is connected to the high-efficiency filtering unit (2) via an air duct, the high-efficiency filtering unit (2) is connected to the air supply unit (3) via an air duct, and the control system (6) is electrically connected to the pre-treatment unit (1), the high-efficiency filtering unit (2), the air supply unit (3) and the exhaust unit (4).

2. An operating room indoor air purification system and an operating method thereof according to claim 1, characterized in that: The pre-treatment unit (1) uses a primary filter (7) for preliminarily purifying the air entering the system and removing large particles and dust.

3. An operating room indoor air purification system and an operating method thereof according to claim 1, characterized in that: The high-efficiency filtration unit (2) uses a HEPA high-efficiency filter (8) to further remove harmful substances such as tiny particles, bacteria and viruses in the air.

4. An operating room indoor air purification system and an operating method thereof according to claim 1, characterized in that: The air supply unit (3) adopts a laminar air supply method (9) and is responsible for evenly supplying purified air into the operating room, thereby ensuring the cleanliness of the air in the operating room.

5. The operating room indoor air purification system and the operation method thereof according to claim 1, characterized in that: The exhaust unit (4) adopts a mechanical exhaust method (10) and is responsible for exhausting the dirty air in the operating room to form an air circulation.

6. An operating room indoor air purification system and an operating method thereof according to claim 1, characterized in that: The control system (6) adopts a PLC controller (11) which is responsible for the operation and control of the entire system, including the adjustment of parameters such as air flow, wind speed, temperature and humidity.

7. An operating room indoor air purification system and an operating method thereof according to claim 1, characterized in that: The system may also include an air quality monitoring unit (5) for real-time monitoring of the air quality in the operating room and automatically adjusting the operating state of the system according to the monitoring results.

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