Air conditioning system and control method thereof

Abstract

The invention provides an air conditioning system and a control method thereof. The air conditioning system comprises an air supply device, and the air supply device comprises an air supply outlet used for conveying air flow into a room; the air outlet direction of the air supply outlet is adjustably arranged; the air exhaust module is connected with the air supply device and used for exhausting indoor airflow; the usual module comprises an air return opening used for absorbing indoor air flow; the return air inlet communicates with the air supply outlet; the urgent time module comprises an exhaust outlet used for absorbing indoor airflow, and the exhaust outlet communicates with the exhaust module; and the control module is in signal connection with the ordinary time module and the urgent time module so as to control the air outlet direction of the air supply outlet. According to the air conditioning system, the technical problem that the air conditioning system easily causes cross infection of personnel is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power application, and in particular to an air conditioning system and a control method thereof. Background Art

[0002] At present, in order to cope with possible sudden airborne epidemics in the future, it is proposed to adopt the design concepts of normal working conditions and emergency working conditions in the HVAC design of ordinary public buildings.

[0003] In terms of the hospital inpatient ward environment, two completely different air conditioning systems are required for adaptation in normal and emergency situations. The role of air conditioning in general inpatient wards is only to provide indoor patients with a comfortable air-conditioned environment, and it does not rely on fresh air and high-efficiency filtration. Among them, the demand for fresh air can be met by opening windows for ventilation. The normal air conditioning system is simple and reliable. However, after an epidemic breaks out, the epidemic is generally transmitted through the respiratory tract and spread by air. At this time, the HVAC system is particularly important for the control of the epidemic. In order to prevent the spread of the epidemic and ensure that there is enough fresh air indoors, a completely different air conditioning system is required. At this time, a lot of financial, human and material resources are required to solve the problem of conversion from normal to epidemic.

[0004] Patent number CN1159625A discloses a centralized air conditioning and ventilation control system that combines peacetime and epidemics, including a building automation control system. The building automation control system includes a normal control system and a disaster control system. The normal control system can automatically switch to a disaster control system. The building automation control system also includes an epidemic prevention and control system. The normal control system can automatically switch to an epidemic prevention and control system. For key places and key institutions for epidemic prevention and control, ventilation and air exchange in closed air-conditioned areas are strengthened. While ensuring that the use of central air-conditioning meets indoor comfort, it avoids being in a relatively closed environment all the time, reducing the risk of epidemic transmission and spread; the central air-conditioning system has the function of combining peacetime and epidemics. When there is an outbreak of an epidemic in a building, it can be switched to the "epidemic prevention working condition" with one click through centralized control, which effectively reduces the spread and spread of the epidemic in a timely manner. Summary of the invention

[0005] The purpose of this patent is to overcome the above-mentioned technical deficiencies and provide an air-conditioning system to solve the technical problem in the related technology that the air-conditioning system easily causes cross infection among personnel.

[0006] In order to achieve the above technical purpose, the present invention adopts the following technical solution: an air conditioning system is provided, comprising: an air supply device, the air supply device comprises an air supply port for delivering air flow to the room; the air outlet direction of the air supply port is adjustable; An exhaust module, used to exhaust the indoor air flow; A normal module, which includes a return air port for absorbing indoor air flow; the return air port is connected to the air supply port; An emergency module, the emergency module includes an exhaust port for absorbing indoor airflow, and the exhaust port is connected to the exhaust module; The control module is connected with the normal module and the emergency module by signals to control the air conditioning system to start the normal module or the emergency module; thereby controlling the air outlet direction of the air supply port.

[0007] Furthermore, the air supply outlet includes a first air supply outlet and a second air supply outlet; the air supply device also includes an air valve; the air valve is used to control the air flow out of the first air supply outlet or the second air supply outlet.

[0008] Furthermore, the air outlet direction of the first air supply outlet and the air inlet direction of the return air outlet are perpendicular to each other.

[0009] Furthermore, the air outlet direction of the second air outlet is perpendicular to the air outlet direction of the first air outlet.

[0010] Furthermore, the emergency module also includes a fresh air inlet, which is used to absorb fresh air from the outside; the fresh air inlet is connected to the air supply outlet.

[0011] Furthermore, the emergency module includes: An air volume control device is used to control the air supply volume of the air supply device; and / or, the air volume control device is used to control the exhaust volume of the exhaust port.

[0012] Furthermore, the air conditioning system control module also includes: an air quality sensor, the air quality sensor being connected to the air volume control device signal so as to control the air volume control device according to the indoor air quality; and / or, The pressure sensor is connected to the air volume control device signal to control the air volume control device according to the indoor air pressure.

[0013] Furthermore, the emergency module includes an exhaust duct, which is connected to the exhaust module; the exhaust port is arranged on the exhaust duct, and the exhaust port is arranged at a designated position in the room through the exhaust duct.

[0014] Further, a first filter for filtering airflow is arranged at the air outlet; the first filter is arranged detachably; and / or, a second filter for filtering airflow is arranged at the air supply outlet; the second filter is arranged detachably.

[0015] A control method is provided, comprising: The control module chooses to run the normal module or the emergency module; When the control module operates in normal mode, adjust the air outlet direction; Make the air outlet direction of the air supply outlet correspond to the air outlet direction of the return air outlet; When the control module runs the emergency module, adjust the air outlet direction; The air outlet direction of the air supply port is made to correspond to the air outlet direction of the air outlet arranged indoors; wherein the exhaust duct is connected to the air outlet.

[0016] Furthermore, when the control module runs the normal module, the air inlet direction of the return air outlet is set to be parallel to the vertical direction; and the air outlet direction of the supply air outlet is set to be parallel to the horizontal direction.

[0017] Furthermore, when the control module runs the emergency module, the air inlet direction of the return air outlet is set to be parallel to the vertical direction; the air outlet direction of the supply air outlet is set to be parallel to the vertical direction; and the air inlet direction of the exhaust duct is set to be parallel to the horizontal direction.

[0018] Furthermore, the method of running the normal module includes: Detecting the quality of indoor air and controlling the air supply of the air supply device according to the indoor air quality; and / or, Detect the quality of indoor air and control the exhaust volume of the exhaust module according to the indoor air quality.

[0019] Further, the method of running the emergency module includes: Detect the indoor air pressure and control the exhaust volume of the exhaust module according to the indoor air pressure.

[0020] Further, the method of running the emergency module includes: Set the pressure range; When the air pressure in the room is higher than the pressure range, the exhaust volume of the exhaust module is reduced; When the indoor air pressure is lower than the pressure range, the exhaust volume of the exhaust module is increased.

[0021] Beneficial effects: 1. The air conditioning system and control method of the present invention respectively achieve an adaptive air conditioning system mode through control according to the changes in indoor conditions.

[0022] 2. The air conditioning system and control method of the present invention can timely convert the pressure demand from normal to emergency.

[0023] 3. The air-conditioning system and control method thereof of the present invention can quickly switch and respond to the conversion between normal and epidemic conditions of the air-conditioning system when an epidemic breaks out.

[0024] 4. The present invention provides an air conditioning system and a control method thereof, thereby achieving distributed temperature control, pressure control, and oxygen control, without hospital infection risks; and taking up little space.

[0025] 5. The air conditioning system and control method of the present invention can be compatible with the centralized new exhaust system of existing buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of a normal module structure of an air conditioning system used in an embodiment of the present invention; Figure 2 is a schematic diagram of an emergency module structure of an air conditioning system used in an embodiment of the present invention; Figure 3 is a schematic structural diagram of an air supply device of an air conditioning system used in an embodiment of the present invention; Figure 4 is a schematic diagram of the air flow direction of the air conditioning system used in the embodiment of the present invention when the normal module is in operation; Figure 5 is a schematic diagram of the air flow direction when the emergency module of the air conditioning system used in the embodiment of the present invention is in operation; Figure 6 is a flow chart of a control method adopted in an embodiment of the present invention; Figure 7 It is a schematic diagram of the structure of the air conditioning system used in the embodiment of the present invention.

[0027] The above drawings include the following reference numerals: 1. Air supply device; 11. Air supply outlet; 111. First air supply outlet; 112. Second air supply outlet; 2. Exhaust module; 3. Normal module; 31. Return air outlet; 4. Emergency module; 41. Exhaust outlet; 42. Fresh air outlet; 43. Exhaust duct; 431. First filter; 432. Second filter; 5. Control module; 51. Air quality sensor; 53. Pressure sensor. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0029] See also Figures 1 to 7 According to an embodiment of the present invention, an air conditioning system is provided, comprising: The air supply device 1 comprises an air supply port 11 for delivering air flow to the room; the air outlet direction of the air supply port 11 is adjustable; An exhaust module 2, which is connected to the air supply device 1 and is used to exhaust the air flow in the room; Normal module 3, normal module 3 includes a return air port 31 for absorbing indoor air flow; the return air port 31 is connected to the air supply port 11; The emergency module 4 includes an exhaust port 41 for absorbing indoor airflow, and the exhaust port 41 is connected to the exhaust module 2; The control module 5 is signal-connected with the normal module 3 and the emergency module 4 , so as to control the air outlet direction of the air supply port 11 .

[0030] In specific practice, the unit includes an air supply device 1, an exhaust module 2, a normal module 3, and an emergency module 4, which is a set of assembled units that integrate air supply, exhaust, fresh air, return air, and water pipes. It is a device for air conditioning, which can inhale fresh air and return air, process return air in different modes, and apply different modes to fresh air before sending it into the room. By adjusting the air supply direction of the air supply port 11, coordinating the air inlet direction of the return air port 31 of the normal module 3, and coordinating the air inlet direction of the exhaust port 41 of the emergency module 4, the indoor air flow forms a one-way circulation, solving the technical problem that the air conditioning system easily causes cross infection of personnel.

[0031] According to the air conditioning system of the embodiment of the present invention, Figure 1 , including: the air supply port 11 includes a first air supply port 111 and a second air supply port 112; the air supply device 1 also includes an air valve; the air valve is used to control the air flow to flow out from the first air supply port 111 or the second air supply port 112.

[0032] In specific practice, the control module 5 controls the direction of the air supply port, and divides the air supply port 11 into a first air supply port 111 and a second air supply port 112 . Different requirements under different modules are met by setting two different air supply ports.

[0033] In a specific embodiment, when the control module 5 determines to operate the normal module 3, the air valve controls the air outlet 11 to enable the first air outlet 111, and the first air outlet supplies air horizontally; when the control module 5 determines to operate the emergency module 4, the air valve controls the air outlet 11 to enable the second air outlet 112, and the second air outlet 112 supplies air vertically. The first air outlet 111 under the normal module 3 forms a circular airflow in the ward, which is sent sideways and returned upwards, completing a simple airflow cycle in the room. The second air outlet 112 under the emergency module 4 forms a unidirectional airflow, which is sent upwards and discharged sideways. The airflow circulates in the room at a high speed, and the fresh airflow circulates quickly, thereby preventing the virus from being retained and spread indoors.

[0034] According to the air conditioning system of the embodiment of the present invention, the air conditioning system includes: the air outlet direction of the first air supply port 111 and the air inlet direction of the return air port 31 are perpendicular to each other.

[0035] In a specific embodiment, the first air supply port 111 and the return air port 31 are the starting and ending ends of the air flow loop. The air flow enters from the first air supply port 111 and flows into the exhaust module 2 from the return air port 31. The circulation fully flows through the entire room, ensuring air quality and temperature protection.

[0036] According to the air conditioning system of the embodiment of the present invention, Figure 1 , including: the air outlet direction of the second air outlet 112 is perpendicular to the air outlet direction of the first air outlet 111.

[0037] In a specific embodiment, the air flow organization direction is achieved through two mutually perpendicular air supply outlets 11. The air supplied by the first air supply outlet 111 participates in the air flow circulation, and the air supplied by the second air supply outlet 112 participates in the unidirectional air flow, thereby achieving the air supply part with different gas flow directions under different operating modules in this embodiment.

[0038] According to an embodiment of the present invention, an air conditioning system is provided, referring to Figure 1 , including: the emergency module 4 also includes a fresh air outlet 42, the fresh air outlet 42 is used to absorb fresh air from the outside; the fresh air outlet 42 is connected to the air supply outlet 11.

[0039] In a specific embodiment, in the emergency module, the upward delivery and side exhaust mode is used, and the air supply outlet 11 is switched to downward air supply through the air valve. The exhaust duct 43 is arranged to the farthest end of the ward, and the air supply outlet 11 is placed under the window in the ward, at a height substantially flush with the bed. Through simulation, it can be seen that the overall airflow organization in the room is in the form of a unidirectional flow, thereby enabling the system to avoid the risk of cross infection.

[0040] According to an embodiment of the present invention, an air conditioning system is provided, referring to Figure 1 , including: Emergency module 4 includes: The air volume control device is used to control the air supply volume of the air supply device 1; and / or, the air volume control device is used to control the exhaust volume of the exhaust port 41.

[0041] In a specific embodiment, the variable air volume control device controls the indoor air quality by controlling the supply air volume and the exhaust air volume, and controls the normal and emergency conversion of the room by controlling the supply and exhaust air volumes, while ensuring the thermal comfort in the ward, thereby achieving energy-saving and efficient operation in normal times and ensuring high-cleanliness operation in emergencies.

[0042] According to an embodiment of the present invention, an air conditioning system is provided, referring to Figure 1 , including: the air conditioning system control module 5 also includes: An air quality sensor 51, the air quality sensor 51 is connected to the air volume control device signal to control the air volume control device according to the indoor air quality; and / or, The pressure sensor 53 is connected to the air volume control device signal to control the air volume control device according to the indoor air pressure.

[0043] In a specific embodiment, the module 3 usually feeds back the monitored room pollutant concentration signal to the room air volume control device through the indoor air quality sensor 51, and controls the air volume control device to operate at different powers by judging the relationship with the set value according to the specific calculation of the specific project, thereby achieving indoor temperature control and air flow.

[0044] In a specific embodiment, the emergency module 4 feeds back the monitored room air pressure signal to the pressure sensor 53 through the pressure sensor 53, and controls the pressure sensor 53 to operate at different powers by judging the relationship with the set value according to the specific calculation of the specific project, so as to achieve high-speed circulation of indoor air.

[0045] According to an embodiment of the present invention, an air conditioning system is provided, referring to Figure 1 , including: the emergency module 4 includes an exhaust duct 43, and the exhaust duct 43 is connected to the exhaust module 2; the exhaust port 41 is arranged on the exhaust duct 43, and the exhaust port 41 is arranged at a designated position in the room through the exhaust duct 43.

[0046] In a specific embodiment, the exhaust module 2 is equipped with a prefabricated exhaust duct 43 and an air outlet 11, and is quickly installed by flange connection, snap-on connection, press-fit connection, etc. In this way, the switching between the normal module 3 and the emergency module 4 is achieved.

[0047] Preferably, the exhaust duct can also be a soft duct for quick conversion, but because it is an exhaust duct, it is necessary to consider having a bracket to support the soft duct.

[0048] According to an embodiment of the present invention, an air conditioning system is provided, referring to Figure 2 , including: a first filter 431 for filtering airflow is arranged at the air outlet 41; the first filter 431 is detachably arranged; and / or, a second filter 432 for filtering airflow is arranged at the air supply outlet 11; the second filter 432 is detachably arranged.

[0049] In a specific embodiment, the unit is equipped with a high-efficiency filter and a sterilization module. After the installation is completed, the unit is adjusted to the emergency module 4, and the high-efficiency filter is set at the second air supply port 112 and the air supply port 11, which ensures the filtration and sterilization of the air when the air flow circulates in one direction, thereby achieving the purification of the indoor air discharge.

[0050] According to an embodiment of the present invention, a control method is provided, referring to Figure 6 , including: the control module 5 selects to run the normal module 3 or the emergency module; When the control module 5 operates the normal module 3, the air outlet direction of the air supply port 11 is adjusted; Make the air outlet direction of the air supply port 11 correspond to the air inlet direction of the air return port 31; When the control module 5 operates the emergency module 4, the air outlet direction of the air supply port 11 is adjusted; The air outlet direction of the air supply port 11 corresponds to the air inlet direction of the air outlet 41 disposed in the room; wherein the air exhaust duct 43 is connected to the air outlet 41 .

[0051] In a specific embodiment, when the module 3 is normally in operation, the air supply device 1 sends out the airflow in a horizontal direction, and the return air outlet 31 returns the air downward in a direction perpendicular to the air supply device 1. The vertical arrangement ensures sufficient heat exchange in the room, thereby achieving the basic heat exchange function of the air-conditioning system. The return air outlet 31 is connected to the air supply device 1 to ensure indoor air circulation.

[0052] In specific practice, under the emergency module 4, the air supply device 1 sends out the airflow in a vertical direction, and the air supply port 11 connected to the exhaust duct 43 is set at the corresponding position of this scheme, perpendicular to the air supply device 1, and through the vertical corresponding setting mode, the air of the air conditioning system is efficiently purified. The exhaust module 2 is connected to the air supply device 1 to discharge the indoor circulating airflow, ensuring the indoor airflow circulation.

[0053] Specifically, a device for inhaling fresh air is also provided under the module 3 at ordinary times, and the size of the fresh air can be adjusted according to demand to ensure simple internal and external air circulation and air quality.

[0054] According to an embodiment of the present invention, a control method is provided, referring to Figure 6 , including: when the control module 5 operates the normal module 3, the air inlet direction of the return air outlet 31 is set to be parallel to the vertical direction; and the air outlet direction of the air supply outlet 11 is set to be parallel to the horizontal direction.

[0055] In a specific embodiment, the air inlet direction is parallel to the vertical direction, so that the indoor flowing airflow is re-absorbed into the circulating flow, and the air outlet direction is parallel to the horizontal direction, so that the inhaled and re-flowed gas is re-expelled, thereby achieving the circulation of indoor air.

[0056] According to an embodiment of the present invention, a control method is provided, referring to Figure 6 , including: when the control module 5 runs the emergency module 4, the air inlet direction of the return air port 31 is set to be parallel to the vertical direction; the air outlet direction of the air supply port 11 is set to be parallel to the vertical direction; and the air inlet direction of the air inlet of the exhaust duct 43 is set to be parallel to the horizontal direction.

[0057] In a specific embodiment, the air inlet direction is parallel to the vertical direction, and the indoor flowing airflow is re-absorbed into the circulating flow. At the same time, the wind flowing in the unidirectional airflow is guided into the room through the purification and disinfection device. The wind direction is parallel to the horizontal direction. At the same time, the wind flowing out of the unidirectional airflow is guided outdoors through the purification and disinfection device. In this way, it is ensured that the room can continuously obtain circulating airflow, thereby preventing the virus from staying indoors and achieving the purpose of virus prevention and control.

[0058] According to an embodiment of the present invention, a control method is provided, referring to Figure 6 , including: detecting the quality of indoor air, and controlling the air supply volume of the air supply device 1 according to the indoor air quality; and / or, The quality of the indoor air is detected, and the exhaust volume of the exhaust module 2 is controlled according to the indoor air quality.

[0059] In a specific embodiment, after receiving the signal feedback, when it is greater than, the voltage signal of the corresponding air supply module of the air volume control device is increased to increase the fresh air volume, and the voltage signal of the corresponding exhaust module of the room air volume control device is increased to increase the exhaust volume; when it is less than or equal to, it indicates that the air quality is appropriate, the air supply device 1 and the exhaust module 2 remain unchanged and operate normally.

[0060] According to an embodiment of the present invention, a control method is provided, referring to Figure 1 , including: detecting the pressure of the indoor air, and controlling the exhaust volume of the exhaust module 2 according to the indoor air pressure.

[0061] In a specific embodiment, when there are infectious patients in the isolation ward, it is crucial to maintain the negative pressure in the ward, because when the ward is under negative pressure, the atmospheric pressure outside the ward is greater than the atmospheric pressure inside the ward, and when the door is opened, the airflow will flow into the room, so negative pressure maintenance is necessary for the isolation ward. The purpose of control here is to maintain the negative pressure in the ward, by detecting the negative pressure value in the room, determining whether it meets the standard and adjusting the exhaust fan air volume, in this way the internal circulation can always maintain negative pressure stability.

[0062] In specific practice, the indoor pressure sensor 53 monitoring value is used to determine whether it is within the set range and is calculated according to the specific project. If it is lower than the set range, the exhaust module 2 voltage signal is increased, the exhaust volume is increased, and the cycle is entered for monitoring again; if it is higher than the set range, the exhaust module 2 voltage signal is reduced, the exhaust volume is reduced, and the cycle is entered for monitoring again; if it is within the set range, it means that the negative pressure is stable at this time, and the exhaust module 2 is operating normally. Thus, the required high-efficiency purification is achieved.

[0063] According to an embodiment of the present invention, a control method is provided, referring to Figure 6 , including: setting the pressure range; When the air pressure in the room is higher than the pressure range, the exhaust volume of the exhaust module 2 is reduced; When the air pressure in the room is lower than the pressure range, the exhaust volume of the exhaust module 2 is increased.

[0064] In a specific embodiment, the air supply device 1 under the emergency module 4 sets the air volume at a fixed level, and the exhaust module 2 sets the air volume at a variable level, thereby only controlling a single variable to stabilize the indoor air pressure within a desired preset range.

[0065] This patent invents a medical building combined air conditioning system for normal and emergency use and its air flow form switching control method. The system consists of an air supply device 1 module (air supply device 1: vertical air supply, horizontal air supply, fresh air device, return air device, air valve air conversion device), an exhaust fan module (air volume control device), an assembled air duct (prefabricated assembled air duct, exhaust device unit: filter, sterilization module), and a control module 5 (voltage monitoring module, air quality detection module). The air duct structure and the air outlet form are used to change the air flow organization form in normal and emergency situations. Normally, it is a side-send and upper-return mode, and in emergency, module 4 is an upper-send and side-exhaust mode. The overall air flow organization of the room is in a unidirectional flow form. This system also does not have the risk of cross-infection. The normal and emergency conversion of the room is controlled by controlling the air volume of the supply and exhaust air, while ensuring the thermal comfort in the ward, thereby achieving energy-saving and efficient operation in normal times, and ensuring high-cleanliness operation and negative pressure conversion in emergencies.

[0066] The structure and function of the main equipment of the system are as follows: 1. The assembled combined air supply device 1 is a set of assembled units that integrate air supply, exhaust, fresh air, return air, and water pipes. It is a device used for air conditioning. The device can inhale fresh air and return air, process return air in different modes, apply different modes to fresh air, and then deliver it into the room.

[0067] 2. In order to meet the emergency switching of air flow organization, the unit is designed with two air outlets. The first air outlet 111 is on the side, and the second air outlet 112 is at the bottom of the unit. At the same time, there is a high-efficiency filter at the lower air outlet. The exhaust duct 43 is not installed at ordinary times to prevent the filter at the exhaust outlet from being placed for a long time and affecting the filtering effect. The prefabricated exhaust duct 43 is installed in an emergency (the exhaust duct 43 can also be a soft air duct for quick switching, but because it is exhaust, it is necessary to consider having a bracket to support the soft air duct).

[0068] 3. By presetting the exhaust duct 43, the exhaust duct 43 is installed with a prefabricated assembled air duct and an exhaust port 41, and the exhaust duct 43 can be quickly installed in an emergency by using flange connection, snap-on type, crimping type, etc., so as to realize the switching of the air duct from normal to emergency.

[0069] Furthermore, the mode switching is first divided into two modes, namely, normal module 3 and emergency module 4. Normal module 3 mainly considers the indoor air quality and determines the size of the fresh air volume according to the monitoring value; emergency module 4 monitors the indoor pressure difference monitoring value, compares it with the set value, and adjusts the exhaust fan air volume. This patent currently performs relevant normal and emergency conversion for the environment of ordinary inpatient wards in hospitals, and the specific control is as follows: Normal module 3: First, the unit is adjusted to the normal module 3, the side supply and top return mode. The air supply device 1 supplies air from the side at the ceiling position, and the return air is directly connected to the coil for processing at a short distance. The monitored room pollutant concentration signal is fed back to the room air supply device 1 through the indoor air quality sensor 51. By judging the relationship with the set value (calculated according to the specific project), when it is greater than the set value, the voltage signal of the air supply device 1 is increased, the fresh air volume is increased, the voltage signal of the corresponding exhaust module in the room is increased, and the exhaust volume is increased; when it is less than or equal to, it indicates that the air quality is appropriate, the air supply module and the exhaust module remain unchanged, and operate normally.

[0070] Emergency module 4: After an outbreak, inpatient wards need to be efficiently purified. At this time, the equipment switching is completed first, and the exhaust duct 43 is installed with prefabricated assembled air ducts and exhaust outlets 41. The unit is installed with high-efficiency filters and sterilization modules using flange connections, snap-on connections, crimping connections, etc. After the installation is completed, the unit is adjusted to the emergency module 4, the upper delivery and side exhaust mode, the air supply device 1 switches the air outlet through the air valve, and switches to downward air supply. The exhaust duct is arranged to the farthest end of the ward, and the exhaust outlet 41 is placed under the window in the ward, basically at the same height as the bed. Through simulation, it can be seen that the overall airflow organization in the room is in the form of a one-way flow, and this system also does not have the risk of cross infection. The air supply module has a fixed air volume, while the exhaust module has a variable air volume. The monitoring value of the pressure sensor 53 is used to determine whether it is within the set range (calculated according to the specific project). If it is lower than the set range, the voltage signal of the exhaust module is increased, the exhaust volume is increased, and the cycle is entered for monitoring again. If it is higher than the set range, the voltage signal of the exhaust module is reduced, the exhaust volume is reduced, and the cycle is entered for monitoring again. If it is within the set range, it means that the negative pressure is stable and the exhaust module 2 is operating normally.

[0071] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0072] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0073] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0074] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0075] The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An air conditioning system, characterized in that: The air supply device (1) comprises an air supply port (11) for delivering airflow to a room; the air outlet direction of the air supply port (11) is adjustable; An exhaust module (2) is used to exhaust indoor air; A normal module (3), the normal module (3) comprising an air return port (31) for absorbing indoor air flow; the air return port (31) is connected to the air supply port (11); An emergency module (4), the emergency module (4) comprising an exhaust port (41) for absorbing indoor airflow, the exhaust port (41) being in communication with the exhaust module (2); A control module (5), the control module (5) being signal-connected to the normal module (3) and the emergency module (4), thereby controlling the air outlet direction of the air supply port (11).

2. The air conditioning system according to claim 1, characterized in that: The air supply port (11) comprises a first air supply port (111) and a second air supply port (112); the air supply device (1) further comprises an air valve; the air valve is used to control the airflow to flow out from the first air supply port (111) or the second air supply port (112).

3. The air conditioning system according to claim 2, characterized in that: The air outlet direction of the first air supply port (111) and the air inlet direction of the return air port (31) are perpendicular to each other.

4. The air conditioning system according to claim 2, characterized in that: The air outlet direction of the second air supply outlet (112) is perpendicular to the air outlet direction of the first air supply outlet (111).

5. The air conditioning system according to claim 2, characterized in that: The emergency module (4) further comprises a fresh air inlet (42), wherein the fresh air inlet (42) is used to absorb fresh air from the outside; the fresh air inlet (42) is connected to the air supply outlet (11).

6. The air conditioning system according to claim 5, characterized in that: The air conditioning system comprises: An air volume control device, the air volume control device is used to control the air supply volume of the air supply device (1); and / or the air volume control device is used to control the air exhaust volume of the air outlet (41).

7. The air conditioning system according to claim 6, characterized in that: The air conditioning system control module (5) further includes: an air quality sensor (51), the air quality sensor (51) being connected to the air volume control device by signal so as to control the air volume control device according to the indoor air quality; and / or A pressure sensor (53), the pressure sensor (53) being connected to the air volume control device signal so as to control the air volume control device according to the indoor air pressure.

8. The air conditioning system according to claim 1, characterized in that: The emergency module (4) comprises an exhaust duct (43), wherein the exhaust duct (43) is connected to the exhaust module (2); the exhaust port (41) is arranged on the exhaust duct (43), and the exhaust port (41) is arranged at a designated position in the room through the exhaust duct (43).

9. The air conditioning system according to claim 1, characterized in that: The air outlet (41) is provided with a first filter (431) for filtering airflow; the first filter (431) is detachably provided; and / or the air supply outlet (11) is provided with a second filter (432) for filtering airflow; the second filter (432) is detachably provided.

10. A control method, applicable to the air conditioning system according to any one of claims 1 to 9, characterized in that: The control module (5) selects to operate the normal module (3) or the emergency module (4); When the control module (5) operates the normal operation module (3), the air outlet direction of the air supply port (11) is adjusted so that the air outlet direction of the air supply port (11) corresponds to the air inlet direction of the return air port (31); When the control module (5) operates the emergency module (4), the air outlet direction of the air supply port (11) is adjusted so that the air outlet direction of the air supply port (11) corresponds to the air inlet direction of an air outlet (41) provided in the room; wherein the air exhaust duct (43) is connected to the air outlet (41).

11. The control method according to claim 10, characterized in that: When the control module (5) operates the normal module (3), the air inlet direction of the return air outlet (31) is set to be parallel to the vertical direction; and the air outlet direction of the air supply outlet (11) is set to be parallel to the horizontal direction.

12. The control method according to claim 10, characterized in that: When the control module (5) operates the emergency module (4), the air inlet direction of the return air port (31) is set to be parallel to the vertical direction; the air outlet direction of the air supply port (11) is set to be parallel to the vertical direction; and the air inlet direction of the air inlet of the exhaust duct (43) is set to be parallel to the horizontal direction.

13. The control method according to claim 10, characterized in that: The method of running the normal module (3) includes: Detecting the quality of indoor air and controlling the air supply volume of the air supply device (1) according to the indoor air quality; and / or, The quality of the indoor air is detected, and the exhaust volume of the exhaust module (2) is controlled according to the indoor air quality.

14. The control method according to claim 10, characterized in that: The method of running the emergency module (4) comprises: The pressure of the air in the room is detected, and the exhaust volume of the exhaust module (2) is controlled according to the air pressure in the room.

15. The control method according to claim 14, characterized in that: The method of running the emergency module (4) comprises: Set the pressure range; When the air pressure in the room is higher than the pressure range, reducing the exhaust volume of the exhaust module (2); When the air pressure in the room is lower than the pressure range, the exhaust volume of the exhaust module (2) is increased.

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