Air conditioner structure, control method of air conditioner structure and air conditioner system

Abstract

The invention relates to an air conditioner structure, a control method of the air conditioner structure and an air conditioner system, and relates to the technical field of air conditioners. The air conditioner structure comprises a machine shell, an air return channel and an air exhaust channel. The air return channel is arranged in the machine shell. The air supply channel is arranged in the machine shell, the air supply channel is separated from the air return channel, and the air supply channel is communicated with the urgent air supply outlet and the ordinary air supply outlet. The fresh air channel is arranged in the machine shell and communicates with the air supply channel. The exhaust channel is arranged in the machine shell and is separated from the air supply channel and the fresh air channel. The air return channel selectively communicates with the fresh air channel and the exhaust channel so that the air conditioner structure can be switched to different working conditions, and airflow entering the air supply channel under the corresponding working conditions is sent out through the urgent air supply outlet or the ordinary air supply outlet. According to the technical scheme, the problems that the cost is high and the occupied area is large due to the fact that an air conditioning system needs to be provided with double air channels to distinguish normal and urgent working conditions can be solved.

Description

Technical Field

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

[0002] Medical buildings are the most densely populated and have the highest risk of cross-infection among public buildings. Therefore, the use and safety of HVAC equipment and systems in medical buildings have received extensive attention. In order to meet the "combination of normal and emergency" requirements, the HVAC equipment and systems in existing medical buildings usually have dual ducts to distinguish between normal and emergency modes. However, this form is not only costly, but also requires a separate machine room to house the HVAC equipment, which occupies a large area. Summary of the invention

[0003] The embodiments of the present invention provide an air conditioning structure, a control method of the air conditioning structure and an air conditioning system, which can solve the problem that the existing air conditioning system needs to set up double air ducts to distinguish between normal and emergency working conditions, resulting in high cost and large floor space.

[0004] In a first aspect, an embodiment of the present invention provides an air conditioning structure, comprising:

[0005] A casing, wherein the casing is provided with emergency air supply ports and normal air supply ports;

[0006] A return air channel is arranged in the casing;

[0007] An air supply channel is arranged in the housing and is located above the return air channel, the air supply channel is separated from the return air channel, and the air supply channel is respectively connected to the emergency air supply port and the normal air supply port;

[0008] A fresh air passage is provided in the housing and is located above the return air passage, the fresh air passage is connected to the supply air passage; and

[0009] An exhaust passage is arranged in the housing and located above the return air passage, and the exhaust passage is separated from the supply air passage and the fresh air passage respectively;

[0010] Among them, the return air channel is selectively connected with the fresh air channel and the exhaust air channel respectively, so that the air conditioning structure can be switched to different working conditions, and the air flow entering the air supply channel under the corresponding working conditions can be sent out through the emergency air supply port or the normal air supply port.

[0011] In one embodiment, in emergency conditions, the return air duct is connected with the exhaust duct, the return air flow introduced into the return air duct is discharged through the exhaust duct, the fresh air flow introduced into the fresh air duct enters the supply air duct and is sent out through the emergency air supply port; in normal conditions, the return air duct is connected with the fresh air duct, the return air duct is disconnected from the exhaust duct, the return air flow introduced into the return air duct enters the supply air duct through the fresh air duct and is sent out through the normal air supply port.

[0012] In one embodiment, the air conditioning structure further comprises:

[0013] An exhaust valve is arranged between the return air channel and the exhaust air channel to control the opening and closing of the return air channel and the exhaust air channel;

[0014] a return air inlet valve, disposed between the return air channel and the fresh air channel to control the opening and closing of the return air channel and the fresh air channel; and

[0015] The first filter is arranged in the air supply channel; wherein the emergency air supply port is located above the normal air supply port, and the first filter is located between the emergency air supply port and the normal air supply port.

[0016] In one embodiment, a fresh air inlet and an exhaust air outlet are provided at the top of the housing, and a return air inlet is provided at the bottom of the housing;

[0017] Among them, the fresh air inlet and the exhaust air outlet are respectively connected to the fresh air channel and the exhaust air channel, and the return air inlet is connected to the return air channel.

[0018] In one embodiment, the air conditioning structure further comprises:

[0019] A fresh air valve, arranged on the fresh air outlet;

[0020] A normal air supply valve is arranged on the normal air supply port; and

[0021] The emergency air supply valve is arranged in the air supply channel and is located between the first filter and the normal air supply port.

[0022] In one embodiment, the air conditioning structure further comprises:

[0023] A heat exchanger is arranged between the fresh air channel and the air supply channel;

[0024] a transition air supply valve, disposed between the fresh air passage and the air supply passage, and the transition air supply valve is located above the heat exchanger; and

[0025] A blower is arranged in the air supply channel, and the blower is located between the transition air supply valve and the normal air supply port;

[0026] Wherein, the airflow in the fresh air channel enters the air supply channel through the heat exchanger or the transition air supply valve.

[0027] In one embodiment, the air conditioning structure further comprises:

[0028] An exhaust fan is arranged in the return air passage;

[0029] a second filter disposed in the return air passage and above the exhaust fan; and

[0030] The third filter is arranged in the fresh air channel and located between the fresh air outlet and the transition air supply valve.

[0031] In a second aspect, an embodiment of the present invention provides a control method for an air conditioning structure, which is applied to the air conditioning structure as described above, comprising:

[0032] Connecting the return air channel with the exhaust air channel so that all the return air flow introduced into the return air channel is discharged through the exhaust air channel;

[0033] Open the emergency air supply port and close the normal air supply port;

[0034] The return air channel and the fresh air channel are closed, so that the fresh air flow introduced through the fresh air channel enters the air supply channel, and is sent out from the emergency air supply port after being filtered by the first filter.

[0035] In one embodiment, it further comprises:

[0036] connecting the return air channel with the exhaust air channel so that a portion of the return air flow introduced into the return air channel is discharged through the exhaust air channel;

[0037] Open the emergency air supply port and close the normal air supply port;

[0038] The return air channel is connected to the fresh air channel, and the fresh air flow introduced through the fresh air channel is mixed with another part of the return air flow introduced through the return air channel to form a mixed air flow, so that the mixed air flow enters the air supply channel, is filtered by the first filter, and is then sent out from the emergency air supply port.

[0039] In one embodiment, it further comprises:

[0040] Closing the return air channel and the exhaust air channel;

[0041] Close the emergency air supply port and open the normal air supply port;

[0042] The return air channel is connected with the fresh air channel, so that the return air flow introduced into the return air channel enters the supply air channel through the fresh air channel, and is sent out from the normal air supply port after heat exchange in the heat exchanger.

[0043] In one embodiment, the method further includes turning on the exhaust fan in the return air channel and the supply fan in the supply air channel.

[0044] In one embodiment, it further comprises:

[0045] Closing the return air channel and the exhaust air channel;

[0046] Close the emergency air supply port and open the normal air supply port;

[0047] The return air channel is connected to the fresh air channel, and the fresh air flow introduced through the fresh air channel is mixed with the air flow introduced through the return air channel to form a mixed air flow, so that the mixed air flow enters the air supply channel and is delivered from the normal air supply port.

[0048] In one embodiment, it further comprises:

[0049] The real-time temperature of the air flow in the fresh air channel is detected. When the real-time temperature exceeds a preset temperature range, the transition air supply valve is closed to allow the air flow to enter the air supply channel after heat exchange in the heat exchanger.

[0050] In a third aspect, an embodiment of the present invention provides an air conditioning system, including a return air duct, a fresh air duct, and the air conditioning structure as described above;

[0051] The multiple air-conditioning structures correspond one-to-one to the multiple diagnosis and treatment spaces respectively, and the air-conditioning structure is arranged in the corresponding diagnosis and treatment space; the return air duct is arranged outside the diagnosis and treatment space and is connected to the exhaust passage of the air-conditioning structure; the fresh air duct is arranged outside the diagnosis and treatment space and is connected to the fresh air passage of the air-conditioning structure.

[0052] Compared with the prior art, the advantages of the embodiments of the present invention are that, by switching between the return air channel and the fresh air channel and the exhaust air channel, the flow channel of the airflow is changed, so that the air conditioning structure is switched between different working conditions, and the airflow is sent out through the emergency air supply port or the normal air supply port under the corresponding working conditions, even if the air conditioning structure is switched between the emergency working condition and the normal working condition, and the airflow is sent out through the emergency air supply port under the emergency working condition and through the normal air supply port under the normal working condition, so that the requirements of the normal working condition and the emergency working condition can be met. At the same time, the present invention only needs to set up one air supply channel to meet the requirements. Compared with the existing air conditioning system that needs to set up two air ducts to distinguish between the normal working condition and the emergency working condition, the present invention saves space and reduces production costs. In addition, by installing the air conditioning structure of the present invention in the diagnosis and treatment space, the diagnosis and treatment space can be used as an independent processing unit, and the air supply channel and the return air channel arranged in the air conditioning structure are used, so that the diagnosis and treatment space does not need to share the air supply channel and the return air channel with other diagnosis and treatment spaces, thereby effectively avoiding the risk of cross infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0054] Figure 1 is a front view of an air conditioning structure provided by an embodiment of the present invention;

[0055] Figure 2 yes Figure 1 A side view of an air conditioning structure provided in the embodiment;

[0056] Figure 3 yes Figure 1 A schematic diagram of the structure of the housing provided in the embodiment;

[0057] Figure 4 is a flow chart of a control method of an air conditioning structure provided by another embodiment of the present invention;

[0058] Figure 5 It is a structural schematic diagram of an air conditioning system provided by yet another embodiment of the present invention.

[0059] Reference numerals:

[0060] 1. Air conditioning structure; 2. Diagnosis and treatment space; 3. Return air duct; 4. Fresh air duct;

[0061] 10. Casing; 110. Emergency air supply vent; 120. Normal air supply vent; 130. Fresh air vent; 140. Exhaust vent; 150. Return air vent;

[0062] 20. Return air duct; 30. Supply air duct; 40. Fresh air duct; 50. Exhaust air duct; 60. Exhaust air valve; 70. Return air inlet valve; 80. First filter; 90. Fresh air valve; 91. Normal supply air valve; 92. Emergency supply air valve; 93. Heat exchanger; 94. Transition supply air valve; 95. Supply air fan; 96. Exhaust air fan; 97. Second filter; 98. Third filter. DETAILED DESCRIPTION

[0063] The present invention will be further described below in conjunction with the accompanying drawings.

[0064] Medical buildings are the most densely populated and have the highest risk of cross-infection among public buildings. Therefore, the use and safety of HVAC equipment and systems in medical buildings have received extensive attention. When selecting HVAC equipment and system designs for newly built or renovated medical buildings, it is necessary to consider "combining normal and emergency" to achieve a significant increase in the ability to treat patients in the event of an emergency, quickly control the development of the epidemic, and quickly resume normal medical services when the epidemic ends, reducing energy consumption.

[0065] The HVAC equipment and system design of traditional general hospitals usually uses a fan coil unit and fresh air system, or a fan coil unit and full air system, for multiple wards and wards. Since the return air system spans multiple wards, in order to avoid cross infection between medical staff and patients as much as possible when an epidemic occurs, the return air system is closed and the fresh air and exhaust air negative pressure control mode is adopted, which greatly increases the energy consumption of the air conditioning system. In order to meet the "combination of normal and emergency" design, the HVAC equipment and systems in existing medical buildings usually set up double ducts to distinguish between normal and emergency modes, but this form is not only costly, but also requires a separate machine room to place the HVAC equipment, which occupies a large area.

[0066] Embodiment 1

[0067] like Figure 1-Figure 3As shown, in order to solve the above technical problems, an embodiment of the present invention provides an air conditioning structure, including a casing 10, a return air duct 20, an air supply duct 30, a fresh air duct 40 and an exhaust duct 50; the casing 10 is provided with an emergency air supply port 110 and a normal air supply port 120; the return air duct 20 is arranged in the casing 10; the air supply duct 30 is arranged in the casing 10 and is located above the return air duct 20, the air supply duct 30 is separated from the return air duct 20, and the air supply duct 30 is respectively connected to the emergency air supply port 110 and the normal air supply port 120; the fresh air duct 110 is connected to the emergency air supply port 110 and the normal air supply port 120; The duct 40 is arranged in the casing 10 and is located above the return air duct 20, and the fresh air duct 40 is connected with the supply air duct 30; the exhaust duct 50 is arranged in the casing 10 and is located above the return air duct 20, and the exhaust duct 50 is separated from the supply air duct 30 and the fresh air duct 40 respectively; wherein, the return air duct 20 is selectively connected with the fresh air duct 40 and the exhaust duct 50 respectively, so that the air-conditioning structure can be switched to different working conditions, and the air flow entering the supply air duct 30 under the corresponding working conditions can be delivered through the emergency air supply port 110 or the normal air supply port 120.

[0068] As can be seen from the above, by switching between the return air channel 20 and the fresh air channel 40 and the exhaust air channel 50, the flow channel of the airflow is changed, so that the air conditioning structure is switched between different working conditions, and the airflow is sent out through the emergency air outlet 110 or the normal air outlet 120 under the corresponding working conditions. Even if the air conditioning structure is switched between emergency working conditions and normal working conditions, and the airflow is sent out through the emergency air outlet 110 under emergency working conditions and through the normal air outlet 120 under normal working conditions, the requirements of normal working conditions and emergency working conditions can be met. At the same time, the present invention only needs to set up one air supply channel 30 to meet the requirements. Compared with the existing air conditioning system that needs to set up two air ducts to distinguish between normal working conditions and emergency working conditions, the present invention saves space and reduces production costs. In addition, by installing the air-conditioning structure of the present invention in the diagnosis and treatment space 2, the diagnosis and treatment space 2 can be used as an independent processing unit, utilizing the air supply channel 30 and the return air channel 20 provided in the air-conditioning structure, so that the diagnosis and treatment space 2 does not have to share the air supply channel 30 and the return air channel 20 with other diagnosis and treatment spaces 2, thereby effectively avoiding the risk of cross infection.

[0069] It should be noted that if Figure 3As shown, the length direction is parallel to the X direction, the width direction is parallel to the Y direction, and the height direction is parallel to the Z direction; a first partition is provided in the casing 10, and the first partition divides the casing 10 into a first space and a second space arranged in sequence in the height direction, and the return air duct 20 is located in the second space; a second partition is provided in the first space, and the second partition divides the first space into a third space and a fourth space arranged in sequence in the length direction, and the exhaust duct 50 is located in the third space; a third partition is provided in the fourth space, and the third partition divides the fourth space into a fifth space and a sixth space arranged in sequence in the width direction, and the fresh air duct 40 and the air supply duct 30 are respectively located in the fifth space and the sixth space, so that the exhaust duct 50, the air supply duct 30 and the fresh air duct 40 are arranged side by side.

[0070] Embodiment 2

[0071] like Figure 1-Figure 3 As shown, the air conditioning structure includes a casing 10, a return air duct 20, an air supply duct 30, a fresh air duct 40 and an exhaust duct 50; the casing 10 is provided with an emergency air supply port 110 and a normal air supply port 120; the return air duct 20 is arranged in the casing 10; the air supply duct 30 is arranged in the casing 10 and is located above the return air duct 20, the air supply duct 30 is separated from the return air duct 20, and the air supply duct 30 is respectively connected to the emergency air supply port 110 and the normal air supply port 120; the fresh air duct 40 is arranged in the casing 10 and is located above the return air duct 20, The fresh air duct 40 is connected with the air supply duct 30; the exhaust duct 50 is arranged in the casing 10 and is located above the return air duct 20, the exhaust duct 50, the air supply duct 30 and the fresh air duct 40 are arranged in parallel, and the exhaust duct 50 is separated from the air supply duct 30 and the fresh air duct 40 respectively; wherein, the return air duct 20 is selectively connected with the fresh air duct 40 and the exhaust duct 50 respectively, so that the air-conditioning structure can be switched to different working conditions, and the air flow entering the air supply duct 30 under the corresponding working conditions can be delivered through the emergency air supply port 110 or the normal air supply port 120.

[0072] As can be seen from the above, by switching between the return air channel 20 and the fresh air channel 40 and the exhaust air channel 50, the flow channel of the airflow is changed, so that the air conditioning structure is switched between different working conditions, and the airflow is sent out through the emergency air outlet 110 or the normal air outlet 120 under the corresponding working conditions. Even if the air conditioning structure is switched between emergency working conditions and normal working conditions, and the airflow is sent out through the emergency air outlet 110 under emergency working conditions and through the normal air outlet 120 under normal working conditions, the requirements of normal working conditions and emergency working conditions can be met. At the same time, the present invention only needs to set up one air supply channel 30 to meet the requirements. Compared with the existing air conditioning system that needs to set up two air ducts to distinguish between normal working conditions and emergency working conditions, the present invention saves space and reduces production costs. In addition, by installing the air-conditioning structure of the present invention in the diagnosis and treatment space 2, the diagnosis and treatment space 2 can be used as an independent processing unit, utilizing the air supply channel 30 and the return air channel 20 provided in the air-conditioning structure, so that the diagnosis and treatment space 2 does not have to share the air supply channel 30 and the return air channel 20 with other diagnosis and treatment spaces 2, thereby effectively avoiding the risk of cross infection.

[0073] It should be noted that if Figure 3 As shown, the length direction is parallel to the X direction, the width direction is parallel to the Y direction, and the height direction is parallel to the Z direction; a first partition is provided in the casing 10, and the first partition divides the casing 10 into a first space and a second space arranged in sequence in the height direction, and the return air duct 20 is located in the second space; a second partition is provided in the first space, and the second partition divides the first space into a third space and a fourth space arranged in sequence in the length direction, and the exhaust duct 50 is located in the third space; a third partition is provided in the fourth space, and the third partition divides the fourth space into a fifth space and a sixth space arranged in sequence in the width direction, and the fresh air duct 40 and the air supply duct 30 are respectively located in the fifth space and the sixth space, so that the exhaust duct 50, the air supply duct 30 and the fresh air duct 40 are arranged side by side.

[0074] like Figure 1-Figure 3 As shown, in some embodiments, in emergency conditions, the return air duct 20 is connected with the exhaust duct 50, the return air flow introduced into the return air duct 20 is discharged through the exhaust duct 50, and the fresh air flow introduced into the fresh air duct 40 enters the supply air duct 30 and is sent out through the emergency air supply port 110; in normal conditions, the return air duct 20 is connected with the fresh air duct 40, the return air duct 20 is disconnected from the exhaust duct 50, and the return air flow introduced into the return air duct 20 enters the supply air duct 30 through the fresh air duct 40 and is sent out through the normal air supply port 120.

[0075] By switching the return air passage 20 on and off with the exhaust air passage 50 and the fresh air passage 40, the air conditioning structure can be switched between emergency conditions and normal conditions, and the return air, supply air and fresh air are integrated together to further save space.

[0076] It should be noted that, in emergency conditions, the return air duct 20 and the fresh air duct 40 may be connected or not connected, depending on the degree of epidemic prevention and control and the outdoor meteorological conditions, so as to selectively use the emergency fresh air mode or the emergency mixed air energy-saving mode; for example, in emergency conditions, the return air duct 20 is connected to the exhaust air duct 50, the return air duct 20 and the fresh air duct 40 are closed, the return air flow introduced by the return air duct 20 is completely discharged through the exhaust air duct 50, and the fresh air flow introduced by the fresh air duct 40 enters the supply air duct 30 and is discharged through the emergency supply air duct The fresh air is sent out through the emergency air supply port 110, and the cleanliness and safety of the diagnosis and treatment space 2 are strictly guaranteed by the full fresh air and full exhaust air; or, in emergency conditions, the return air duct 20 is connected with the exhaust air duct 50, and the return air duct 20 is connected with the fresh air duct 40, a part of the return air introduced by the return air duct 20 flows out through the exhaust air duct 50, and the fresh air introduced by the fresh air duct 40 is mixed with the other part of the return air introduced by the return air duct 20 to form a mixed air flow, which is sent out through the emergency air supply port 110, so as to realize operation in the emergency mixed air energy-saving mode in bad weather.

[0077] It should also be noted that, under normal operating conditions, the fresh air duct 40 may not introduce fresh air flow, or may introduce fresh air flow, depending on specific needs, so as to selectively use the normal fresh air and return air mode or the normal full return air mode; for example, under normal operating conditions, the return air duct 20 is connected to the fresh air duct 40, the return air duct 20 is disconnected from the exhaust air duct 50, the fresh air duct 40 does not introduce fresh air flow, the return air flow introduced by the return air duct 20 enters the air supply duct 30 through the fresh air duct 40, and is delivered through the normal air supply port 120, thereby realizing the normal full return air mode; under normal operating conditions, the return air duct 20 is connected to the fresh air duct 40, the return air duct 20 is disconnected from the exhaust air duct 50, the fresh air duct 40 introduces fresh air flow, the return air flow introduced by the return air duct 20 is delivered to the fresh air duct 40, the return air flow is mixed with the fresh air flow to form a mixed airflow, and is delivered through the normal air supply port 120, thereby realizing the normal fresh air and return air mode.

[0078] like Figure 1-Figure 3 As shown, in some embodiments, the air conditioning structure also includes an exhaust valve 60, a return air inlet valve 70 and a first filter 80; the exhaust valve 60 is arranged between the return air channel 20 and the exhaust air channel 50 to control the connection and disconnection of the return air channel 20 and the exhaust air channel 50; the return air inlet valve 70 is arranged between the return air channel 20 and the fresh air channel 40 to control the connection and disconnection of the return air channel 20 and the fresh air channel 40; the first filter 80 is arranged in the air supply channel 30; wherein, the emergency air supply port 110 is located above the normal air supply port 120, and the first filter 80 is located between the emergency air supply port 110 and the normal air supply port 120.

[0079] The exhaust valve 60 is provided to control the connection and disconnection of the return air channel 20 and the exhaust channel 50. When the exhaust valve 60 is opened, the return air channel 20 is connected to the exhaust channel 50, and when the exhaust valve 60 is closed, the return air channel 20 and the exhaust channel 50 are disconnected. The return air inlet valve 70 is provided to control the connection and disconnection of the return air channel 20 and the fresh air channel 40. When the return air inlet valve 70 is opened, the return air channel 20 is connected to the fresh air channel 40, and when the return air inlet valve 70 is closed, the return air channel 20 and the fresh air channel 40 are disconnected. This provides a structural basis for the switching of the air-conditioning structure between different working conditions, and also adapts to the processing of the fresh air airflow and the return air airflow in different working modes such as the above-mentioned emergency mixed air energy-saving mode, the normal fresh air and return air mode. By setting the first filter 80, the airflow of emergency conditions is sterilized to ensure that the airflow delivered from the emergency air supply port 110 meets the emergency safety requirements for air cleanliness and colony count, thereby providing a structural basis for realizing emergency and normal conversion and providing a safe and reliable diagnosis and treatment space 2; at the same time, the emergency air supply port 110 is located above the normal air supply port 120, and the first filter 80 is located between the emergency air supply port 110 and the normal air supply port 120, so that the airflow of normal conditions can be directly delivered from the normal air supply port 120, thereby preventing the airflow of normal conditions from entering the first filter 80 for filtration.

[0080] It should be noted that the first filter 80 has a highly efficient sterilization function, so that the airflow filtered by the first filter 80 meets the safety requirements for air cleanliness, colony count, etc. under emergency conditions.

[0081] It should also be noted that the first partition plate is provided with a first through hole and a second through hole for installing the exhaust valve 60 and the return air inlet valve 70 respectively.

[0082] It should also be noted that the ratio of the exhaust air volume to the return air volume and the ratio of the openings of the exhaust valve 60 to the return air inlet valve 70 are equal, that is, in the emergency mixed air energy-saving mode and the normal fresh air and return air mode, the ratio of the return air flow entering the exhaust duct 50 to the return air flow entering the fresh air duct 40 and the ratio of the openings of the exhaust valve 60 to the return air inlet valve 70 are equal; for example, when the frequency of the exhaust fan 96 is constant, the ratio of the exhaust air volume to the return air volume is required to be 1:2, then the ratio of the openings of the exhaust valve 60 to the return air inlet valve 70 is 1:2.

[0083] like Figure 1-Figure 3 As shown, in some embodiments, a fresh air inlet 130 and an exhaust air outlet 140 are provided at the top of the casing 10, and a return air inlet 150 is provided at the bottom of the casing 10; wherein the fresh air inlet 130 and the exhaust air outlet 140 are respectively connected to the fresh air channel 40 and the exhaust air channel 50, and the return air inlet 150 is connected to the return air channel 20.

[0084] Since the air in the inner building cannot be directly discharged to the outside of the building through the wall, it needs to be collected by the main air duct and then uniformly sent to the outside of the building, and the main air duct is located in the indoor ceiling installation. Therefore, the present invention can directly connect the ceiling air duct by setting the fresh air inlet 130 and the exhaust air outlet 140 on the top of the casing 10, which is more convenient; the fresh air flow is introduced from the fresh air inlet 130 on the top of the casing 10, and mixed with the return air flow introduced from the return air inlet 150 at the bottom of the casing 10, and then sent to the diagnosis and treatment space 2 through the air supply channel 30 after heat exchange. While realizing the function of sending up and returning down, the connecting air duct outside the diagnosis and treatment space 2 does not need to be sunken vertically, and the installation of vertical air ducts inside and outside the diagnosis and treatment space 2 and the installation of various ventilation ducts are cancelled, which reduces the footprint of the unit room, thereby reducing the installation cost and the floor space.

[0085] like Figure 1-Figure 3 As shown, in some embodiments, the air conditioning structure also includes a fresh air valve 90, a normal air supply valve 91 and an emergency air supply valve 92; the fresh air valve 90 is arranged on the fresh air outlet 130; the normal air supply valve 91 is arranged on the normal air supply outlet 120; the emergency air supply valve 92 is arranged in the air supply channel 30 and is located between the first filter 80 and the normal air supply outlet 120.

[0086] The opening and closing of the fresh air outlet 130 is controlled by setting a fresh air valve 90 to control the introduction of fresh air flow. The opening and closing of the normal air outlet 120 and the emergency air outlet 110 are controlled by the normal air supply valve 91 and the emergency air supply valve 92 respectively, providing a structural basis for the normal and emergency conversion of the diagnosis and treatment space 2; in emergency conditions, the normal air supply valve 91 is closed and the emergency air supply valve 92 is opened, and the airflow is sent out through the emergency air supply valve 92; in normal conditions, the normal air supply valve 91 is opened and the emergency air supply valve 92 is closed, and the airflow is sent out through the normal air supply valve 91. In addition, by setting the emergency air supply valve 92 in the exhaust channel 50 and between the first filter 80 and the normal air outlet 120, in normal conditions, the emergency air supply valve 92 is closed, which can prevent the airflow from entering the first filter 80 and ensure that the airflow is sent out through the normal air outlet 120.

[0087] It should be noted that in the emergency fresh air mode, the exhaust valve 60 is opened, the return air inlet valve 70 is closed, the fresh air valve 90 is opened, the emergency air supply valve 92 is opened, and the normal air supply valve 91 is closed;

[0088] In the emergency mixed air energy-saving mode, the exhaust valve 60 is opened, the return air inlet valve 70 is opened, the fresh air valve 90 is opened, the emergency air supply valve 92 is opened, and the normal air supply valve 91 is closed;

[0089] In normal full return air mode, the exhaust valve 60 is closed, the return air inlet valve 70 is open, the fresh air valve 90 is closed, the emergency air supply valve 92 is closed and the normal air supply valve 91 is open;

[0090] In the normal fresh air and return air mode, the exhaust valve 60 is closed, the return air inlet valve 70 is opened, the fresh air valve 90 is opened, the emergency air supply valve 92 is closed and the normal air supply valve 91 is opened.

[0091] Embodiment 3

[0092] like Figure 1-Figure 3 As shown, the air conditioning structure includes a casing 10, a return air duct 20, an air supply duct 30, a fresh air duct 40 and an exhaust duct 50; the casing 10 is provided with an emergency air supply port 110 and a normal air supply port 120; the return air duct 20 is arranged in the casing 10; the air supply duct 30 is arranged in the casing 10 and is located above the return air duct 20, the air supply duct 30 is separated from the return air duct 20, and the air supply duct 30 is respectively connected to the emergency air supply port 110 and the normal air supply port 120; the fresh air duct 40 is arranged in the casing 10 and is located above the return air duct 20, The fresh air duct 40 is connected with the air supply duct 30; the exhaust duct 50 is arranged in the casing 10 and is located above the return air duct 20, the exhaust duct 50, the air supply duct 30 and the fresh air duct 40 are arranged in parallel, and the exhaust duct 50 is separated from the air supply duct 30 and the fresh air duct 40 respectively; wherein, the return air duct 20 is selectively connected with the fresh air duct 40 and the exhaust duct 50 respectively, so that the air-conditioning structure can be switched to different working conditions, and the air flow entering the air supply duct 30 under the corresponding working conditions can be delivered through the emergency air supply port 110 or the normal air supply port 120.

[0093] As can be seen from the above, by switching between the return air channel 20 and the fresh air channel 40 and the exhaust air channel 50, the flow channel of the airflow is changed, so that the air conditioning structure is switched between different working conditions, and the airflow is sent out through the emergency air outlet 110 or the normal air outlet 120 under the corresponding working conditions. Even if the air conditioning structure is switched between emergency working conditions and normal working conditions, and the airflow is sent out through the emergency air outlet 110 under emergency working conditions and through the normal air outlet 120 under normal working conditions, the requirements of normal working conditions and emergency working conditions can be met. At the same time, the present invention only needs to set up one air supply channel 30 to meet the requirements. Compared with the existing air conditioning system that needs to set up two air ducts to distinguish between normal working conditions and emergency working conditions, the present invention saves space and reduces production costs. In addition, by installing the air-conditioning structure of the present invention in the diagnosis and treatment space 2, the diagnosis and treatment space 2 can be used as an independent processing unit, utilizing the air supply channel 30 and the return air channel 20 provided in the air-conditioning structure, so that the diagnosis and treatment space 2 does not have to share the air supply channel 30 and the return air channel 20 with other diagnosis and treatment spaces 2, thereby effectively avoiding the risk of cross infection.

[0094] It should be noted that if Figure 3As shown, the length direction is parallel to the X direction, the width direction is parallel to the Y direction, and the height direction is parallel to the Z direction; a first partition is provided in the casing 10, and the first partition divides the casing 10 into a first space and a second space arranged in sequence in the height direction, and the return air duct 20 is located in the second space; a second partition is provided in the first space, and the second partition divides the first space into a third space and a fourth space arranged in sequence in the length direction, and the exhaust duct 50 is located in the third space; a third partition is provided in the fourth space, and the third partition divides the fourth space into a fifth space and a sixth space arranged in sequence in the width direction, and the fresh air duct 40 and the air supply duct 30 are respectively located in the fifth space and the sixth space, so that the exhaust duct 50, the air supply duct 30 and the fresh air duct 40 are arranged side by side.

[0095] like Figure 1-Figure 3 As shown, in some embodiments, in emergency conditions, the return air duct 20 is connected with the exhaust duct 50, the return air flow introduced into the return air duct 20 is discharged through the exhaust duct 50, and the fresh air flow introduced into the fresh air duct 40 enters the supply air duct 30 and is sent out through the emergency air supply port 110; in normal conditions, the return air duct 20 is connected with the fresh air duct 40, the return air duct 20 is disconnected from the exhaust duct 50, and the return air flow introduced into the return air duct 20 enters the supply air duct 30 through the fresh air duct 40 and is sent out through the normal air supply port 120.

[0096] By switching the return air passage 20 on and off with the exhaust air passage 50 and the fresh air passage 40, the air conditioning structure can be switched between emergency conditions and normal conditions, and the return air, supply air and fresh air are integrated together to further save space.

[0097] It should be noted that, in emergency conditions, the return air duct 20 and the fresh air duct 40 may be connected or not connected, depending on the degree of epidemic prevention and control and the outdoor meteorological conditions, so as to selectively use the emergency fresh air mode or the emergency mixed air energy-saving mode; for example, in emergency conditions, the return air duct 20 is connected to the exhaust air duct 50, the return air duct 20 and the fresh air duct 40 are closed, the return air flow introduced by the return air duct 20 is completely discharged through the exhaust air duct 50, and the fresh air flow introduced by the fresh air duct 40 enters the supply air duct 30 and is discharged through the emergency supply air duct The fresh air is sent out through the emergency air supply port 110, and the cleanliness and safety of the diagnosis and treatment space 2 are strictly guaranteed by the full fresh air and full exhaust air; or, in emergency conditions, the return air duct 20 is connected with the exhaust air duct 50, and the return air duct 20 is connected with the fresh air duct 40, a part of the return air introduced by the return air duct 20 flows out through the exhaust air duct 50, and the fresh air introduced by the fresh air duct 40 is mixed with the other part of the return air introduced by the return air duct 20 to form a mixed air flow, which is sent out through the emergency air supply port 110, so as to realize operation in the emergency mixed air energy-saving mode in bad weather.

[0098] It should also be noted that, under normal operating conditions, the fresh air duct 40 may not introduce fresh air flow, or may introduce fresh air flow, depending on specific needs, so as to selectively use the normal fresh air and return air mode or the normal full return air mode; for example, under normal operating conditions, the return air duct 20 is connected to the fresh air duct 40, the return air duct 20 is disconnected from the exhaust air duct 50, the fresh air duct 40 does not introduce fresh air flow, the return air flow introduced by the return air duct 20 enters the air supply duct 30 through the fresh air duct 40, and is delivered through the normal air supply port 120, thereby realizing the normal full return air mode; under normal operating conditions, the return air duct 20 is connected to the fresh air duct 40, the return air duct 20 is disconnected from the exhaust air duct 50, the fresh air duct 40 introduces fresh air flow, the return air flow introduced by the return air duct 20 is delivered to the fresh air duct 40, the return air flow is mixed with the fresh air flow to form a mixed airflow, and is delivered through the normal air supply port 120, thereby realizing the normal fresh air and return air mode.

[0099] like Figure 1-Figure 3 As shown, in some embodiments, the air conditioning structure also includes an exhaust valve 60, a return air inlet valve 70 and a first filter 80; the exhaust valve 60 is arranged between the return air channel 20 and the exhaust air channel 50 to control the connection and disconnection of the return air channel 20 and the exhaust air channel 50; the return air inlet valve 70 is arranged between the return air channel 20 and the fresh air channel 40 to control the connection and disconnection of the return air channel 20 and the fresh air channel 40; the first filter 80 is arranged in the air supply channel 30; wherein, the emergency air supply port 110 is located above the normal air supply port 120, and the first filter 80 is located between the emergency air supply port 110 and the normal air supply port 120.

[0100] The exhaust valve 60 is provided to control the connection and disconnection of the return air channel 20 and the exhaust channel 50. When the exhaust valve 60 is opened, the return air channel 20 is connected to the exhaust channel 50, and when the exhaust valve 60 is closed, the return air channel 20 and the exhaust channel 50 are disconnected. The return air inlet valve 70 is provided to control the connection and disconnection of the return air channel 20 and the fresh air channel 40. When the return air inlet valve 70 is opened, the return air channel 20 is connected to the fresh air channel 40, and when the return air inlet valve 70 is closed, the return air channel 20 and the fresh air channel 40 are disconnected. This provides a structural basis for the switching of the air-conditioning structure between different working conditions, and also adapts to the processing of the fresh air airflow and the return air airflow in different working modes such as the above-mentioned emergency mixed air energy-saving mode, the normal fresh air and return air mode. By setting the first filter 80, the airflow of emergency conditions is sterilized to ensure that the airflow delivered from the emergency air supply port 110 meets the emergency safety requirements for air cleanliness and colony count, thereby providing a structural basis for realizing emergency and normal conversion and providing a safe and reliable diagnosis and treatment space 2; at the same time, the emergency air supply port 110 is located above the normal air supply port 120, and the first filter 80 is located between the emergency air supply port 110 and the normal air supply port 120, so that the airflow of normal conditions can be directly delivered from the normal air supply port 120, thereby preventing the airflow of normal conditions from entering the first filter 80 for filtration.

[0101] It should be noted that the first filter 80 has a highly efficient sterilization function, so that the airflow filtered by the first filter 80 meets the safety requirements for air cleanliness, colony count, etc. under emergency conditions.

[0102] It should also be noted that the first partition plate is provided with a first through hole and a second through hole for installing the exhaust valve 60 and the return air inlet valve 70 respectively.

[0103] It should also be noted that the ratio of the exhaust air volume to the return air volume and the ratio of the openings of the exhaust valve 60 to the return air inlet valve 70 are equal, that is, in the emergency mixed air energy-saving mode and the normal fresh air and return air mode, the ratio of the return air flow entering the exhaust duct 50 to the return air flow entering the fresh air duct 40 and the ratio of the openings of the exhaust valve 60 to the return air inlet valve 70 are equal; for example, when the frequency of the exhaust fan 96 is constant, the ratio of the exhaust air volume to the return air volume is required to be 1:2, then the ratio of the openings of the exhaust valve 60 to the return air inlet valve 70 is 1:2.

[0104] like Figure 1-Figure 3 As shown, in some embodiments, a fresh air inlet 130 and an exhaust air outlet 140 are provided at the top of the casing 10, and a return air inlet 150 is provided at the bottom of the casing 10; wherein the fresh air inlet 130 and the exhaust air outlet 140 are respectively connected to the fresh air channel 40 and the exhaust air channel 50, and the return air inlet 150 is connected to the return air channel 20.

[0105] Since the air in the inner building cannot be directly discharged to the outside of the building through the wall, it needs to be collected by the main air duct and then uniformly sent to the outside of the building, and the main air duct is located in the indoor ceiling installation. Therefore, the present invention can directly connect the ceiling air duct by setting the fresh air inlet 130 and the exhaust air outlet 140 on the top of the casing 10, which is more convenient; the fresh air flow is introduced from the fresh air inlet 130 on the top of the casing 10, and mixed with the return air flow introduced from the return air inlet 150 at the bottom of the casing 10, and then sent to the diagnosis and treatment space 2 through the air supply channel 30 after heat exchange. While realizing the function of sending up and returning down, the connecting air duct outside the diagnosis and treatment space 2 does not need to be sunken vertically, and the installation of vertical air ducts inside and outside the diagnosis and treatment space 2 and the installation of various ventilation ducts are cancelled, which reduces the footprint of the unit room, thereby reducing the installation cost and the floor space.

[0106] like Figure 1-Figure 3 As shown, in some embodiments, the air conditioning structure also includes a fresh air valve 90, a normal air supply valve 91 and an emergency air supply valve 92; the fresh air valve 90 is arranged on the fresh air outlet 130; the normal air supply valve 91 is arranged on the normal air supply outlet 120; the emergency air supply valve 92 is arranged in the air supply channel 30 and is located between the first filter 80 and the normal air supply outlet 120.

[0107] The opening and closing of the fresh air outlet 130 is controlled by setting a fresh air valve 90 to control the introduction of fresh air flow. The opening and closing of the normal air outlet 120 and the emergency air outlet 110 are controlled by the normal air supply valve 91 and the emergency air supply valve 92 respectively, providing a structural basis for the normal and emergency conversion of the diagnosis and treatment space 2; in emergency conditions, the normal air supply valve 91 is closed and the emergency air supply valve 92 is opened, and the airflow is sent out through the emergency air supply valve 92; in normal conditions, the normal air supply valve 91 is opened and the emergency air supply valve 92 is closed, and the airflow is sent out through the normal air supply valve 91. In addition, by setting the emergency air supply valve 92 in the exhaust channel 50 and between the first filter 80 and the normal air outlet 120, in normal conditions, the emergency air supply valve 92 is closed, which can prevent the airflow from entering the first filter 80 and ensure that the airflow is sent out through the normal air outlet 120.

[0108] It should be noted that in the emergency fresh air mode, the exhaust valve 60 is opened, the return air inlet valve 70 is closed, the fresh air valve 90 is opened, the emergency air supply valve 92 is opened, and the normal air supply valve 91 is closed;

[0109] In the emergency mixed air energy-saving mode, the exhaust valve 60 is opened, the return air inlet valve 70 is opened, the fresh air valve 90 is opened, the emergency air supply valve 92 is opened, and the normal air supply valve 91 is closed;

[0110] In normal full return air mode, the exhaust valve 60 is closed, the return air inlet valve 70 is open, the fresh air valve 90 is closed, the emergency air supply valve 92 is closed and the normal air supply valve 91 is open;

[0111] In the normal fresh air and return air mode, the exhaust valve 60 is closed, the return air inlet valve 70 is opened, the fresh air valve 90 is opened, the emergency air supply valve 92 is closed and the normal air supply valve 91 is opened.

[0112] like Figure 1-Figure 3 As shown, in some embodiments, the air conditioning structure also includes a heat exchanger 93, a transition air supply valve 94 and an air supply fan 95; the heat exchanger 93 is arranged between the fresh air channel 40 and the air supply channel 30; the transition air supply valve 94 is arranged between the fresh air channel 40 and the air supply channel 30, and the transition air supply valve 94 is located above the heat exchanger 93; the air supply fan 95 is arranged in the air supply channel 30, and the air supply fan 95 is located between the transition air supply valve 94 and the normal air supply port 120; wherein, the air flow in the fresh air channel 40 enters the air supply channel 30 through the heat exchanger 93 or the transition air supply valve 94.

[0113] By setting the transition air supply valve 94 as a heat exchange bypass, it is possible to choose whether to pass through the heat exchanger 93 for heat exchange before entering the diagnosis and treatment space 2 according to actual needs in both emergency and normal working conditions; when the transition air supply valve 94 is opened, the airflow in the fresh air channel 40 does not pass through the heat exchanger 93 for heat exchange, but passes through the transition air supply valve 94 and is sent into the diagnosis and treatment space 2 by the air supply fan 95; when the transition air supply valve 94 is closed, the airflow in the fresh air channel 40 passes through the heat exchanger 93 for heat exchange, and the airflow after heat exchange is sent into the diagnosis and treatment space 2 by the air supply fan 95. By placing the air supply fan 95 in the air supply channel 30, the exhaust fan 96 and the return fan are connected in series, the air volume is increased, and the energy consumption of the air supply fan 95 is reduced.

[0114] It should be noted that the heat exchanger 93 can be a second-order air-water (or other cold source medium) heat exchanger 93. When the airflow passes through the heat exchanger 93, it indirectly exchanges heat with the cold source medium for heat exchange, so the fresh air channel 40 and the air supply channel 30 are connected through the heat exchanger 93.

[0115] It should also be noted that whether the airflow in the fresh air passage 40 passes through the heat exchanger 93 for heat exchange is determined based on whether the real-time temperature of the airflow in the fresh air passage 40 exceeds the preset temperature range. For example, during cooling, the preset temperature range is t1-t2, and the real-time temperature of the airflow in the fresh air passage 40 is t3. If t3 is less than t1, it does not need to pass through the heat exchanger 93 for heat exchange. If t3 is greater than t2, it needs to pass through the heat exchanger 93 for heat exchange.

[0116] It should also be noted that the airflow in the fresh air duct 40 does not pass through the heat exchanger 93, which can reduce wind resistance and reduce fan power consumption. In addition, the use of natural cooling sources can reduce cooling source consumption, thereby achieving multiple energy-saving purposes.

[0117] It should also be noted that the third partition plate is provided with a third through hole for installing a transitional season valve.

[0118] like Figure 1-Figure 3 As shown, in some embodiments, the air conditioning structure also includes an exhaust fan 96, a second filter 97 and a third filter 98; the exhaust fan 96 is arranged in the return air duct 20; the second filter 97 is arranged in the return air duct 20 and is located above the exhaust fan 96; the third filter 98 is arranged in the fresh air duct 40 and is located between the fresh air outlet 130 and the transition air supply valve 94.

[0119] By setting up an exhaust fan 96, the return air flow is introduced into the return air channel 20; by setting up a second filter 97, the return air flow entering the return air channel 20 is filtered, thereby improving air cleanliness and safety; by setting up a third filter 98, the fresh air flow entering the fresh air channel 40 is filtered, thereby improving air cleanliness and safety.

[0120] It should be noted that the exhaust fan 96 can realize the functions of exhaust, full return, return and exhaust. When fresh air flow is needed, the supply fan 95 is started.

[0121] It should also be noted that the exhaust fan and the supply fan can be frequency-controlled according to the air ventilation times and negative pressure control requirements in the diagnosis and treatment space.

[0122] In summary, the present invention integrates multiple air vents and multiple functional modules together, which can not only process the temperature of the fresh air flow and the return air flow, but also filter the fresh air flow and the exhaust air flow to control the air cleanliness and safety, and can also use the first filter 80 to filter and sterilize the air flow sent into the diagnosis and treatment space 2 during an epidemic. The flow channel of the airflow is switched and controlled by multiple air valves to adapt to the processing of fresh air, return air, and exhaust air in different working modes. With the cooperation of the first filter 80, the present invention can quickly realize the smooth and emergency conversion of the diagnosis and treatment space 2, respond to emergency needs at the fastest speed, and provide a safe and reliable diagnosis and treatment space 2.

[0123] Embodiment 4

[0124] like Figure 4 As shown, the embodiment of the present invention further provides a control method of an air conditioning structure, which is applied to the air conditioning structure of any embodiment of the present invention, and thus has all the technical effects brought by the technical solutions of the above embodiments, including:

[0125] S101: connecting the return air channel 20 and the exhaust air channel 50 so that all the return air flow introduced into the return air channel 20 is discharged through the exhaust air channel 50;

[0126] S102: Open the emergency air supply port 110 and close the normal air supply port 120;

[0127] S103 : The return air channel 20 and the fresh air channel 40 are closed, so that the fresh air flow introduced through the fresh air channel 40 enters the air supply channel 30 , is filtered by the first filter 80 , and is then sent out through the emergency air supply port 110 .

[0128] It should be noted that, through steps S101-S103, the air conditioning structure is switched to the emergency fresh air mode of emergency conditions; specifically, the exhaust valve 60 is opened to connect the return air channel 20 with the exhaust channel 50, and the return air flow introduced into the return air channel 20 is filtered by the second filter 97 and then discharged out of the treatment room through the exhaust port 140 of the exhaust channel 50, thereby achieving full exhaust; the emergency supply air valve 92 is opened and the normal supply air valve 91 is closed, and the return air inlet valve 70 is closed to disconnect the return air channel 20 from the fresh air channel 40, and the fresh air flow introduced into the fresh air channel 40 is filtered by the third filter 98 and then enters the supply air channel 30 through the blower 95, and then is filtered by the first filter 80 and then sent into the treatment room through the emergency supply port 110, thereby achieving fresh air.

[0129] In some embodiments, it also includes:

[0130] The return air passage 20 is connected to the exhaust air passage 50 so that a portion of the return air flow introduced into the return air passage 20 is discharged through the exhaust air passage 50;

[0131] Open the emergency air supply vent 110 and close the normal air supply vent 120;

[0132] The return air channel 20 is connected to the fresh air channel 40, and the fresh air flow introduced through the fresh air channel 40 is mixed with another part of the return air flow introduced through the return air channel 20 to form a mixed air flow, so that the mixed air flow enters the air supply channel 30, is filtered by the first filter 80, and is then sent out from the emergency air supply port 110.

[0133] It should be noted that, through the above steps, the air conditioning structure is switched to the emergency mixed air energy-saving mode for emergency conditions; specifically, the exhaust valve 60 is opened to connect the return air duct 20 with the exhaust duct 50, and the return air flow introduced into the return air duct 20 is filtered by the second filter 97 and then a part of it is discharged out of the treatment room through the exhaust port 140 of the exhaust duct 50, so as to achieve partial exhaust; the emergency air supply valve 92 is opened and the normal air supply valve 91 is closed, and the return air inlet valve 70 is opened to connect the return air duct 20 with the fresh air duct 40, and the fresh air flow introduced into the fresh air duct 40 is filtered by the third filter 98 and then mixed with the other part of the return air flow introduced into the return air duct 20 to form a mixed air flow, and the mixed air flow enters the air supply duct 30 through the blower 95, and is filtered by the first filter 80 and then sent into the treatment room through the emergency air supply port 110.

[0134] It should also be noted that if the emergency fresh air mode is used in the extremely cold or hot seasons, the temperature in the diagnosis and treatment space 2 may seriously deviate from the thermal comfort range of the human body, which is not conducive to the normal treatment work of doctors and patients, nor is it conducive to the recovery of patients. Therefore, the emergency mixed air energy-saving mode can be used, but the exhaust fan 96 and the supply fan 95 need to be controlled to ensure that the diagnosis and treatment room achieves a negative pressure effect, thereby preventing the virus from entering the space outside the diagnosis and treatment through cracks.

[0135] In some embodiments, it also includes:

[0136] Shut off the return air channel 20 and the exhaust air channel 50;

[0137] Close the emergency air supply vent 110 and open the normal air supply vent 120;

[0138] The return air passage 20 is connected to the fresh air passage 40 , so that the return air flow introduced into the return air passage 20 enters the supply air passage 30 through the fresh air passage 40 , and is sent out through the normal air supply port 120 after heat exchange in the heat exchanger 93 .

[0139] It should be noted that the above steps switch the air conditioning structure to the normal full return air mode of normal working conditions; specifically, close the exhaust valve 60 to disconnect the return air duct 20 from the exhaust duct 50, open the emergency air supply valve 92 and close the normal air supply valve 91, open the return air inlet valve 70 to connect the return air duct 20 with the fresh air duct 40, close the fresh air valve 90, and the return air flow introduced into the return air duct 20 is filtered by the second filter 97 and then enters the fresh air duct 40. After the return air flow passes through the heat exchanger 93 for heat exchange, it is sent into the treatment room through the normal air supply port 120.

[0140] It should also be noted that in the normal full return air mode, the return air flow in the fresh air duct 40 is heat exchanged through the heat exchanger 93 and then delivered into the treatment room through the normal air supply port 120.

[0141] In some embodiments, it also includes:

[0142] The exhaust fan 96 in the return air duct 20 and the supply fan 95 in the supply air duct 30 are turned on.

[0143] It should be noted that when there is fresh air flow in the fresh air duct 40, the supply fan 95 will be turned on; when there is no fresh air flow in the fresh air duct 40, but only return air flow, the supply fan 95 can be turned off and only the exhaust fan 96 can be turned on, or the supply fan 95 and the exhaust fan 96 can be turned on at the same time, that is, in the normal full return air mode, the supply fan 95 can be turned on or off, thereby forming the normal full return air mode 1 and the normal full return air mode 2. Specifically, in the normal full return air mode 1, the supply fan 95 and the exhaust fan 96 are turned on at the same time, forming a series connection of two fans, which can achieve a larger air supply volume; in the normal full return air mode 2, only the supply fan 95 is turned on to meet the small return air volume operation; the user can choose the normal full return air mode 1 or the normal full return air mode 2 according to the specific requirements for temperature and air volume in the treatment room;

[0144] For example, when the heat exchanger 93 is cooling and the cooling capacity is constant, if a large air volume and medium-temperature cold air are needed, the normal return air mode 1 is selected, and if a small air volume and low-temperature cold air are needed, the normal return air mode 2 is selected.

[0145] In some embodiments, it also includes:

[0146] Shut off the return air channel 20 and the exhaust air channel 50;

[0147] Close the emergency air supply vent 110 and open the normal air supply vent 120;

[0148] The return air passage 20 is connected to the fresh air passage 40 , and the fresh air flow introduced through the fresh air passage 40 is mixed with the air flow introduced through the return air passage 20 to form a mixed air flow, so that the mixed air flow enters the air supply passage 30 and is delivered from the normal air supply port 120 .

[0149] It should be noted that, through the above steps, the air conditioning structure is switched to the normal fresh air and return air mode of normal working conditions; specifically, the exhaust valve 60 is closed to shut off the return air channel 20 and the exhaust channel 50, the emergency air supply valve 92 is opened and the normal air supply valve 91 is closed, the return air inlet valve 70 is opened to connect the return air channel 20 with the fresh air channel 40, the fresh air valve 90 is opened, and the fresh air flow introduced into the fresh air channel 40 is filtered by the third filter 98, and the return air flow introduced into the return air channel 20 is filtered by the second filter 97 and then enters the fresh air channel 40, the fresh air flow and the return air flow are mixed into a mixed air flow, and the mixed air flow is delivered into the treatment room through the normal air supply port 120.

[0150] In some embodiments, it also includes: detecting the real-time temperature of the air flow in the fresh air duct 40, and when the real-time temperature exceeds the preset temperature range, closing the transition air supply valve 94 to allow the air flow to enter the air supply duct 30 after heat exchange through the heat exchanger 93.

[0151] It should be noted that the emergency fresh air mode, the emergency full return air mode, and the normal fresh air and return air modes all require the detection of the real-time temperature of the airflow in the fresh air duct 40 to ensure that the airflow finally delivered to the treatment room meets the indoor requirements; therefore, when the real-time temperature exceeds the preset temperature range, the transition return air valve is closed, so that the airflow passes through the heat exchanger 93 for heat exchange and is then delivered to the treatment room by the blower 95; when the real-time temperature does not exceed the preset temperature range, the transition return air valve is opened, so that the airflow passes through the transition return air valve into the air supply duct 30 and is delivered to the treatment room by the blower 95;

[0152] For example, during cooling, the preset temperature range is t1-t2, and the real-time temperature of the air flow in the fresh air channel 40 is t3. If t3 is less than t1, there is no need to pass through the heat exchanger 93 for heat exchange, and the air enters the supply air channel 30 through the transition return air valve. If t3 is greater than t2, the air flow needs to pass through the heat exchanger 93 for heat exchange before entering the supply air channel 30.

[0153] Embodiment 5

[0154] like Figure 5 As shown, an embodiment of the present invention further provides an air-conditioning system, comprising a plurality of air-conditioning structures 1, a return air duct 3 and a fresh air duct 4 as described in any embodiment of the present invention; the plurality of air-conditioning structures 1 correspond one-to-one to a plurality of diagnosis and treatment spaces 2, respectively, and the air-conditioning structure 1 is arranged in the corresponding diagnosis and treatment space 2; the return air duct 3 is arranged outside the diagnosis and treatment space 2 and is connected to the exhaust duct 50 of the air-conditioning structure 1; the fresh air duct 4 is arranged outside the diagnosis and treatment space 2 and is connected to the fresh air duct 40 of the air-conditioning structure 1.

[0155] It should be noted that if Figure 5 As shown, a certain floor in the medical building can be divided into multiple diagnosis and treatment spaces 2, and the multiple diagnosis and treatment spaces 2 are arranged in a multi-row and multi-column matrix. There is a corridor between the diagnosis and treatment spaces 2 in two adjacent rows. The return air duct 3 and the fresh air duct 4 can be passed through the corridor between the diagnosis and treatment spaces 2 in two adjacent rows, and the air-conditioning structure 1 is installed on the wall of the diagnosis and treatment space 2 close to the return air duct 3 and the fresh air duct 4. In this way, there is no ceiling air duct in the diagnosis and treatment space 2, and no vertical air duct is installed inside and outside the diagnosis and treatment space 2. The diagnosis and treatment space 2 installed with the air-conditioning structure 1 is used as an independent processing unit. The diagnosis and treatment space 2 does not need to share the supply air duct 30 and the return air duct 20 with other diagnosis and treatment spaces 2, thereby effectively avoiding the risk of cross infection.

[0156] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An air conditioning structure, characterized in that: include: A casing, wherein the casing is provided with emergency air supply ports and normal air supply ports; A return air passage is arranged in the casing; An air supply channel is arranged in the housing and is located above the return air channel, the air supply channel is separated from the return air channel, and the air supply channel is respectively connected to the emergency air supply port and the normal air supply port; A fresh air passage is arranged in the housing and located above the return air passage, and the fresh air passage is connected to the supply air passage; as well as An exhaust passage is arranged in the housing and located above the return air passage, and the exhaust passage is separated from the supply air passage and the fresh air passage respectively; Among them, the return air channel is selectively connected with the fresh air channel and the exhaust air channel respectively, so that the air conditioning structure can be switched to different working conditions, and the air flow entering the air supply channel under the corresponding working conditions can be sent out through the emergency air supply port or the normal air supply port.

2. The air conditioning structure according to claim 1, characterized in that: In emergency conditions, the return air duct is connected with the exhaust duct, the return air flow introduced into the return air duct is discharged through the exhaust duct, the fresh air flow introduced into the fresh air duct enters the supply air duct and is sent out through the emergency air supply outlet; in normal conditions, the return air duct is connected with the fresh air duct, the return air duct is disconnected from the exhaust duct, the return air flow introduced into the return air duct enters the supply air duct through the fresh air duct and is sent out through the normal air supply outlet.

3. The air conditioning structure according to claim 2, characterized in that: The air conditioning structure also includes: An exhaust valve is arranged between the return air channel and the exhaust air channel to control the opening and closing of the return air channel and the exhaust air channel; a return air inlet valve, disposed between the return air channel and the fresh air channel to control the opening and closing of the return air channel and the fresh air channel; and The first filter is arranged in the air supply channel; wherein the emergency air supply port is located above the normal air supply port, and the first filter is located between the emergency air supply port and the normal air supply port.

4. The air conditioning structure according to claim 3, characterized in that: The top of the housing is provided with a fresh air inlet and an exhaust air outlet, and the bottom of the housing is provided with a return air inlet; Among them, the fresh air inlet and the exhaust air outlet are respectively connected to the fresh air channel and the exhaust air channel, and the return air inlet is connected to the return air channel.

5. The air conditioning structure according to claim 4, characterized in that: The air conditioning structure also includes: A fresh air valve, arranged on the fresh air outlet; A normal air supply valve is arranged on the normal air supply port; and The emergency air supply valve is arranged in the air supply channel and is located between the first filter and the normal air supply port.

6. The air conditioning structure according to any one of claims 1 to 5, characterized in that: The air conditioning structure also includes: A heat exchanger is arranged between the fresh air channel and the air supply channel; a transition air supply valve, disposed between the fresh air passage and the air supply passage, and the transition air supply valve is located above the heat exchanger; and A blower is arranged in the air supply channel, and the blower is located between the transition air supply valve and the normal air supply port; Wherein, the airflow in the fresh air channel enters the air supply channel through the heat exchanger or the transition air supply valve.

7. The air conditioning structure according to claim 6, characterized in that: The air conditioning structure also includes: An exhaust fan is arranged in the return air passage; a second filter disposed in the return air passage and above the exhaust fan; and The third filter is arranged in the fresh air channel and located between the fresh air outlet and the transition air supply valve.

8. A control method for an air conditioning structure, characterized in that: The air conditioning structure applied to any one of claims 1 to 7 comprises: Connecting the return air channel with the exhaust air channel so that all the return air flow introduced into the return air channel is discharged through the exhaust air channel; Open the emergency air supply port and close the normal air supply port; The return air channel and the fresh air channel are closed, so that the fresh air flow introduced through the fresh air channel enters the air supply channel, and is sent out from the emergency air supply port after being filtered by the first filter.

9. The control method of the air conditioning structure according to claim 8, characterized in that: Also includes: connecting the return air channel with the exhaust air channel so that a portion of the return air flow introduced into the return air channel is discharged through the exhaust air channel; Open the emergency air supply port and close the normal air supply port; The return air channel is connected to the fresh air channel, and the fresh air flow introduced through the fresh air channel is mixed with another part of the return air flow introduced through the return air channel to form a mixed air flow, so that the mixed air flow enters the air supply channel, is filtered by the first filter, and is then sent out from the emergency air supply port.

10. The control method of the air conditioning structure according to claim 8, characterized in that: Also includes: Closing the return air channel and the exhaust air channel; Close the emergency air supply port and open the normal air supply port; The return air channel is connected with the fresh air channel, so that the return air flow introduced into the return air channel enters the supply air channel through the fresh air channel, and is sent out from the normal air supply port after heat exchange in the heat exchanger.

11. The control method of the air conditioning structure according to claim 10, characterized in that: Also includes: Turn on the exhaust fan in the return air channel and the supply fan in the supply air channel.

12. The control method of the air conditioning structure according to claim 8, characterized in that: Also includes: Closing the return air channel and the exhaust air channel; Close the emergency air supply port and open the normal air supply port; The return air channel is connected to the fresh air channel, and the fresh air flow introduced through the fresh air channel is mixed with the air flow introduced through the return air channel to form a mixed air flow, so that the mixed air flow enters the air supply channel and is delivered from the normal air supply port.

13. The control method of the air conditioning structure according to claim 8, 9 or 12, characterized in that: Also includes: The real-time temperature of the air flow in the fresh air channel is detected. When the real-time temperature exceeds a preset temperature range, the transition air supply valve is closed to allow the air flow to enter the air supply channel after heat exchange in the heat exchanger.

14. An air conditioning system, characterized in that: It comprises a return air duct, a fresh air duct and an air conditioning structure as claimed in any one of claims 1 to 7; The multiple air-conditioning structures correspond one-to-one to the multiple diagnosis and treatment spaces respectively, and the air-conditioning structure is arranged in the corresponding diagnosis and treatment space; the return air duct is arranged outside the diagnosis and treatment space and is connected to the exhaust passage of the air-conditioning structure; the fresh air duct is arranged outside the diagnosis and treatment space and is connected to the fresh air passage of the air-conditioning structure.

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