Air conditioner air conveying device

Abstract

The invention relates to the technical field of air conditioning, in particular to an air conditioner air conveying device. The device comprises a pre-storage mechanism; one end of the pre-storage mechanism is communicated with the smoke generator, and the other end of the pre-storage mechanism is communicated with the air conditioner air supply pipe to form a conveying path for guiding the smoke generator to output aerosol to enter the simulation space; the pre-storage mechanism is configured to be capable of stretching and retracting in the axial direction. According to the air conditioner air conveying device, in the smoke simulation low-concentration stage, the pre-storage mechanism extends in the axial direction to gradually increase the volume of the pre-storage mechanism, so that part of aerosol is contained, and the amount of aerosol entering an air conditioner air supply pipe is reduced; in the smoke simulation sudden high-concentration explosion stage, the pre-storage mechanism axially stretches out and draws back to gradually reduce the air volume, and then aerosol accumulated in the pre-storage mechanism is driven to enter the air conditioner air supply pipe. The problem that a dynamic evolution process from a low-concentration initial stage to sudden high-concentration outbreak is difficult to realize due to the fact that a fuming device is limited by the smoke output speed and the concentration adjusting capacity is solved.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, specifically to airflow regulation equipment in air conditioning and ventilation systems, and more particularly to an air conditioning air delivery device. Background Technology

[0002] Smoke simulation technology is widely used in aerospace training, emergency response training, and industrial safety testing. It aims to recreate fire smoke environments in a controlled manner to assess personnel response capabilities, test emergency plans, and evaluate the performance of detection equipment. Existing smoke simulation systems typically use a smoke generator to heat and vaporize a smoke-generating liquid (such as glycerol-based or mineral oil-based smoke-generating liquids). The vapor enters a pipe, condenses to form an aerosol, and is transported into the simulated space, where it forms visible white smoke.

[0003] In actual fire scenarios, if the fire source is near the air conditioning return air vent or the air conditioning system itself is affected, and the system fails to shut down in time or the fire damper malfunctions, smoke may be drawn into the air conditioning ducts and rapidly spread to multiple areas. During this process, the smoke concentration exhibits typical dynamic changes: initially, due to the infiltration of a small amount of smoke, the concentration at the outlet is low; however, as the fire intensifies and a large amount of smoke continues to enter the system, the smoke concentration at the air conditioning outlet will rise sharply in a short period of time, forming a dangerous state of rapid "low-high" increase.

[0004] However, due to the limitations of the smoke generation device in terms of smoke output speed and concentration adjustment capabilities, it is difficult to realize the dynamic evolution process from the initial low concentration stage to the sudden high concentration burst, thus affecting the realism of the simulated scene and the reliability of the training effect. Summary of the Invention

[0005] This invention provides an air conditioning air supply device to solve the problem that the smoke generating device is limited by the smoke output speed and concentration adjustment capability, making it difficult to realize the dynamic evolution process from the initial stage of low concentration to the sudden outbreak of high concentration.

[0006] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows: An air conditioning air supply device: The device includes a pre-storage mechanism; one end of the pre-storage mechanism is connected to a smoke generator, and the other end is connected to an air conditioning duct to form a delivery path for guiding the aerosol output from the smoke generator into the simulated space; the pre-storage mechanism is configured to extend and retract axially; when the pre-storage mechanism extends axially, its volume gradually increases to accommodate some of the aerosol, thereby reducing the amount of aerosol entering the air conditioning duct; when the pre-storage mechanism retracts axially, its volume gradually decreases to allow the aerosol accumulated in the pre-storage mechanism to enter the air conditioning duct.

[0007] Furthermore, it also includes a preheating mechanism; the preheating mechanism is connected between the smoke generator and the pre-storage mechanism, and is used to heat the flowing gaseous medium.

[0008] Furthermore, the preheating mechanism includes a preheating cylinder and a photothermal tube; the preheating cylinder includes a cylinder body and a light-transmitting plate installed on the cylinder body; one end of the cylinder body is connected to a smoke generator, and the other end is connected to the pre-storage mechanism; the photothermal tube is disposed on the outside of the cylinder body, and the light radiation it outputs passes through the light-transmitting plate and enters the cylinder body to heat the aerosol flowing through the preheating cylinder.

[0009] Furthermore, the pre-storage mechanism includes a folded storage cylinder and a first gas supply valve; the folded storage cylinder is connected to the preheating mechanism and is configured to extend and retract axially; one end of the first gas supply valve is connected to the folded storage cylinder and the other end is connected to the air conditioning duct, used to control the connection and disconnection between the folded storage cylinder and the air conditioning duct; when preheating the flow channel between the pre-storage mechanism and the smoke generator, the first gas supply valve is closed, and the folded storage cylinder reciprocates axially to drive the gas to flow back and forth sequentially along the folded storage cylinder, the preheating mechanism and the smoke generator, and to be continuously heated by the preheating mechanism.

[0010] Furthermore, it also includes a flow guiding structure; the flow guiding structure includes a circulation pipe; the pre-storage mechanism also includes a folded circulation cylinder; the folded circulation cylinder is connected to the folded storage cylinder and configured to extend and retract axially; one end of the circulation pipe is connected to the folded storage cylinder and the other end is connected to the folded circulation cylinder; when the pre-storage mechanism extends to accommodate aerosols, the folded circulation cylinder moves axially while reciprocating, and at the same time, the folded storage cylinder extends and retracts synchronously in the opposite direction relative to the folded circulation cylinder, so as to drive the aerosols to flow reciprocally along the folded storage cylinder, the circulation pipe and the folded circulation cylinder in sequence.

[0011] Furthermore, the flow guiding structure also includes a circulation tee; the first port of the circulation tee is connected to the circulation pipe, the second port is connected to the preheating mechanism, and the third port is connected to the smoke generator; when the pre-storage mechanism extends to accommodate aerosols, the aerosols flow back and forth along the folded storage cylinder, the preheating mechanism, the circulation tee, the circulation pipe, and the folded circulation cylinder, and are continuously heated by the preheating mechanism.

[0012] Furthermore, the pre-storage mechanism also includes a second gas supply valve; one end of the second gas supply valve is connected to the folded circulation cylinder, and the other end is connected to the air conditioning supply pipe; when the pre-storage mechanism extends to accommodate aerosols, the first gas supply valve opens as the folded storage cylinder retracts, so that the folded storage cylinder is connected to the air conditioning supply pipe; the second gas supply valve opens as the folded circulation cylinder retracts, so that the folded circulation cylinder is connected to the air conditioning supply pipe.

[0013] Furthermore, the flow guiding structure also includes an intake three-way valve and a steering three-way valve; the first port of the intake three-way valve is connected to the smoke generator, the second port is connected to the first port of the steering three-way valve, and the third port is connected to the third port of the circulation three-way valve; the second port of the steering three-way valve is connected to the circulation pipe, and the third port is connected to the third port of the circulation three-way valve; when the pre-storage mechanism retracts to output aerosol, the folded storage cylinder retracts axially to drive the aerosol accumulated in the folded storage cylinder into the air supply pipe through the first air delivery valve; simultaneously, the aerosol generated by the smoke generator sequentially enters the air conditioning supply pipe through the intake three-way valve, the steering three-way valve, the circulation pipe, the folded circulation cylinder, and the second air delivery valve.

[0014] Furthermore, the flow guiding structure also includes a return three-way valve; the first port of the return three-way valve is connected to the third port of the intake three-way valve, the second port is connected to the exhaust pipe, and the third port is connected to the first port of the circulation three-way valve; the exhaust pipe is used to discharge aerosols in the simulated space; when the aerosols contained in the pre-storage mechanism are completed and output, the aerosols in the simulated space flow back to the simulated space in sequence through the exhaust pipe, the return three-way valve, the circulation three-way valve, the preheating mechanism, the folded storage cylinder, the first gas supply valve, and the air conditioning supply pipe, and are heated by the preheating mechanism; at the same time, the aerosols generated by the smoke generator enter the air conditioning supply pipe in sequence through the intake three-way valve, the diversion three-way valve, the circulation pipe, the folded circulation cylinder, and the second gas supply valve.

[0015] Furthermore, it also includes an actuator; the actuator includes a circulation bracket, a storage bracket, and two drive structures; the circulation bracket is connected to the folded circulation cylinder; the storage bracket is connected to the folded storage cylinder; the two drive structures are respectively used to drive the circulation bracket and the storage bracket to move along the axial direction of the pre-storage mechanism.

[0016] In summary, the technical effects achieved by this invention are as follows: 1. In the low-concentration smoke simulation stage, the pre-storage mechanism of the air conditioning air supply device provided by the present invention extends axially to accommodate some of the aerosols entering the air conditioning air supply duct through the pre-storage mechanism, thereby reducing the amount of aerosols entering the air conditioning air supply duct, thus simulating the scenario of low smoke concentration at the air conditioning outlet in the early stage of a fire in the simulated space; in the sudden high-concentration smoke outbreak stage, the pre-storage mechanism contracts axially to drive the aerosols accumulated in the pre-storage mechanism into the air conditioning air supply duct, thereby instantly increasing the amount of aerosols entering the air conditioning air supply duct, thus simulating the scenario of a rapid increase in smoke concentration at the air conditioning outlet in a short period of time in the simulated space.

[0017] 2. The air conditioning air supply device provided by the present invention heats the aerosol flowing through it through a preheating mechanism, so that the temperature of the aerosol is maintained within a predetermined range, thereby preventing the aerosol from condensing or sticking to the wall due to the temperature drop during the transportation process, thus maintaining the dispersion stability and fluidity of the aerosol; at the same time, the aerosol heated to the predetermined temperature range enters the simulated space through the air conditioning air supply pipe to simulate the high temperature characteristics of smoke generated by a fire, thereby further enhancing the realism of the smoke simulation by the aerosol input into the simulated space.

[0018] 3. The air conditioning air supply device provided by the present invention uses light radiation output from the photothermal tube to enter the cylinder through the light-transmitting plate and heat the aerosol inside the cylinder, so that the heat source does not come into direct contact with the aerosol during the heating process, avoiding deposition and sintering caused by direct contact between the aerosol and the heat source, thereby reducing the mutual influence between the aerosol and the heat source.

[0019] 4. In the low-concentration stage of smoke simulation, the air conditioning air supply device provided by the present invention drives the folded storage cylinder and the folded circulation cylinder to extend and retract synchronously in opposite directions, so that the aerosol flows back and forth along the folded storage cylinder, the preheating mechanism, the circulation three-way valve, the diverting three-way valve, the circulation pipe and the folded circulation cylinder in sequence. During this process, the preheating mechanism heats the aerosol flowing through it, so as to heat it while driving the aerosol to flow, thereby further increasing the dispersion stability and flowability of the aerosol in the folded circulation cylinder.

[0020] 6. In the high-concentration stable stage of smoke simulation, the air conditioning air supply device provided by the present invention allows a portion of the aerosols from the simulated space inside the exhaust pipe to flow back to the simulated space through the return three-way valve, the circulation three-way valve, the preheating mechanism, the pre-storage mechanism, and the air conditioning supply pipe. During this process, the preheating mechanism heats the flowing aerosols to recycle the aerosols in the simulated space, thereby reducing the amount of aerosols generated by the smoke generator and the amount of aerosols purified by the smoke removal equipment, thus reducing the working pressure of the smoke generator and the smoke removal equipment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of the air conditioning air supply device provided in the embodiments of the present invention; Figure 2 A front view of the air conditioning air supply device provided in the embodiments of the present invention; Figure 3 A schematic diagram of the combined structure of the pre-storage mechanism, the preheating mechanism, and the flow guiding structure provided in the embodiments of the present invention; Figure 4 An exploded three-dimensional structural diagram of the preheating mechanism provided in the embodiments of the present invention; Figure 5 A schematic diagram of the structure of the actuator provided in the embodiments of the present invention.

[0023] icon: 100-Pre-storage mechanism; 110-Folding storage cylinder; 120-First gas supply valve; 130-Folding circulation cylinder; 140-Second gas supply valve; 200-Preheating mechanism; 210-Preheating cylinder; 211-Cylinder body; 212-Light-transmitting plate; 220-Photothermal tube; 230-Concentrating cover; 300-Guiding structure; 310-Circulation pipe; 320-Circulation tee; 330-Inlet tee valve; 340-Diverting tee valve; 350-Return tee valve; 400-Actuator; 410-Circulation support; 420-Storage support; 430-Drive structure; 431-Drive motor; 432-Screw; 440-Guide rail; 450-Bearing support. Detailed Implementation

[0024] Because the smoke generating device is limited by the smoke output speed and concentration adjustment capability, it is difficult to realize the dynamic evolution process from the initial low concentration stage to the sudden high concentration burst, thus affecting the realism of the simulated scene and the reliability of the training effect.

[0025] In view of this, this solution provides an air conditioning air supply device, including a pre-storage mechanism 100.

[0026] The following combination Figures 1-5 The structure and shape of the air conditioning air supply device are described in detail: One end of the pre-storage mechanism 100 is connected to the smoke generator, and the other end is connected to the air conditioning duct to form a delivery path for guiding the aerosol output by the smoke generator into the simulated space; the pre-storage mechanism 100 is configured to be able to extend and retract along the axial direction; when the pre-storage mechanism 100 extends axially, its volume gradually increases to accommodate part of the aerosol, thereby reducing the amount of aerosol entering the air conditioning duct. When the pre-storage mechanism 100 contracts axially, its volume gradually decreases, so that the aerosol accumulated in the pre-storage mechanism 100 can enter the air conditioning duct.

[0027] In this embodiment, during the low-concentration smoke simulation stage, the pre-storage mechanism 100 extends axially to gradually increase its volume, thereby accommodating some of the aerosols that enter the air conditioning duct through the pre-storage mechanism 100, thus reducing the amount of aerosols entering the air conditioning duct. This simulates the initial stage of a fire in the simulated space, where a small amount of smoke infiltrates the air conditioning system, resulting in a low smoke concentration at the air conditioning outlet.

[0028] During the simulated sudden high-concentration smoke outbreak phase, the pre-storage mechanism 100 contracts axially to gradually reduce its volume, thereby driving the aerosols accumulated in the pre-storage mechanism 100 into the air conditioning duct, instantly increasing the amount of aerosols entering the air conditioning duct. This simulates a scenario in the simulated space where, as the fire intensifies and smoke continues to enter the air conditioning system in large quantities, the smoke concentration at the air conditioning outlet rises sharply in a short period of time.

[0029] To simulate the high-temperature characteristics of smoke while maintaining the dispersion stability and flowability of aerosols: like Figures 1-2 As shown, it also includes a preheating mechanism 200; the preheating mechanism 200 is connected between the smoke generator and the pre-storage mechanism 100 and is used to heat the flowing gaseous medium.

[0030] In this embodiment, the aerosol generated by the smoke generator enters the pre-storage mechanism 100 through the preheating mechanism 200. During this process, the preheating mechanism 200 heats the flowing aerosol, keeping the aerosol temperature within a predetermined range, thereby preventing the aerosol from condensing or sticking to the wall due to temperature drop during transportation, thus maintaining the dispersion stability and flowability of the aerosol.

[0031] In addition, the aerosol heated to a predetermined temperature within the pre-stored mechanism 100 enters the simulated space through the air conditioning duct to simulate the high-temperature characteristics of smoke generated by a fire, thereby further enhancing the realism of the smoke simulation by the aerosol input into the simulated space.

[0032] To prevent aerogel deposition within the preheating unit 200: like Figure 4As shown, the preheating mechanism 200 includes a preheating cylinder 210 and a photothermal tube 220; the preheating cylinder 210 includes a cylinder body 211 and a light-transmitting plate 212 installed on the cylinder body 211; one end of the cylinder body 211 is connected to a smoke generator, and the other end is connected to a pre-storage mechanism 100; the photothermal tube 220 is disposed on the outside of the cylinder body 211, and the light radiation it outputs passes through the light-transmitting plate 212 and enters the cylinder body 211 to heat the aerosol flowing through the preheating cylinder 210.

[0033] In order to guide the light radiation output from the photothermal pipe 220 through the light-transmitting plate 212: like Figure 4 As shown, the preheating mechanism 200 also includes a concentrator 230; the concentrator 230 is installed on the cylinder 211 and located outside the light-heating tube 220, and is used to concentrate the light radiation emitted by the light-heating tube 220 and guide the light radiation through the light-transmitting plate 212 into the cylinder 211.

[0034] In this embodiment, the aerosol generated by the smoke generator enters the pre-storage mechanism 100 through the preheating cylinder 210. During this process, part of the light radiation generated by the photothermal tube 220 passes through the light-transmitting plate 212 and enters the cylinder 211, while another part of the light radiation is refracted and guided by the focusing cover 230 to pass through the light-transmitting plate 212 and enter the cylinder 211. The light radiation heats the aerosol in the cylinder 211. During this process, the heat source does not come into direct contact with the aerosol, thus avoiding deposition and sintering caused by direct contact between the aerosol and the heat source, thereby reducing the mutual influence between the aerosol and the heat source.

[0035] The types of the aforementioned light-transmitting plate 212 include, but are not limited to, quartz glass, and the types of the photothermal tube 220 include, but are not limited to, infrared light.

[0036] To reduce the condensation rate of aerosols before they enter the air conditioning duct: like Figures 2-3 As shown, the pre-storage mechanism 100 includes a folded storage cylinder 110 and a first gas supply valve 120. The folded storage cylinder 110 is connected to the preheating mechanism 200 and is configured to extend and retract axially. One end of the first gas supply valve 120 is connected to the folded storage cylinder 110 and the other end is connected to the air conditioning duct, which is used to control the connection and disconnection between the folded storage cylinder 110 and the air conditioning duct. When the flow channel between the pre-storage mechanism 100 and the smoke generator is preheated, the first gas supply valve 120 is closed, and the folded storage cylinder 110 reciprocates axially to drive the gas to flow back and forth sequentially along the folded storage cylinder 110, the preheating mechanism 200 and the smoke generator, and is continuously heated by the preheating mechanism 200.

[0037] In this embodiment, during the smoke simulation preparation stage, the first gas supply valve 120 controls the folded storage cylinder 110 to disconnect from the air conditioning supply pipe. Then, the folded storage cylinder 110 extends axially to increase its volume and generate negative pressure, thereby driving ambient air to enter the folded storage cylinder 110 sequentially through the smoke generator and the preheating mechanism 200. Then, the folded storage cylinder 110 contracts axially to reduce its volume, thereby driving the air inside the folded storage cylinder 110 to be discharged sequentially through the preheating mechanism 200 and the smoke generator. During this process, the preheating mechanism 200 heats the flowing air, and the heated gas heats the folded storage cylinder 110 and the flow channel between the folded storage cylinder 110 and the smoke generator, thereby reducing the condensation rate of the aerosol before entering the air conditioning supply pipe.

[0038] To prevent aerosol condensation and sedimentation inside the folded storage cylinder 110: like Figures 1-3 As shown, it also includes a flow guiding structure 300; the flow guiding structure 300 includes a circulation pipe 310; the pre-storage mechanism 100 also includes a folded circulation cylinder 130; the folded circulation cylinder 130 is connected to the folded storage cylinder 110 and is configured to be able to extend and retract axially; one end of the circulation pipe 310 is connected to the folded storage cylinder 110 and the other end is connected to the folded circulation cylinder 130; when the pre-storage mechanism 100 extends to accommodate aerosols, the folded circulation cylinder 130 moves axially and reciprocates while extending and retracting, while the folded storage cylinder 110 extends and retracts synchronously in the opposite direction relative to the folded circulation cylinder 130, so as to drive the aerosols to flow reciprocally along the folded storage cylinder 110, the circulation pipe 310 and the folded circulation cylinder 130 in sequence.

[0039] To further enhance the dispersion stability and flowability of aerosols within the folded circulation cylinder 130: like Figure 3 As shown, the flow guiding structure 300 also includes a circulation tee 320; the first port of the circulation tee 320 is connected to the circulation pipe 310, the second port is connected to the preheating mechanism 200, and the third port is connected to the smoke generator; when the pre-storage mechanism 100 extends to accommodate aerosols, the aerosols flow back and forth along the folded storage cylinder 110, the preheating mechanism 200, the circulation tee 320, the circulation pipe 310, and the folded circulation cylinder 130, and pass through the preheating mechanism 200.

[0040] In this embodiment, during the low-concentration smoke simulation stage, the folded circulation cylinder 130 moves axially and reciprocates while extending and retracting. Simultaneously, the folded storage cylinder 110 extends and retracts in the opposite direction relative to the folded circulation cylinder 130, so as to form a squeezing thrust and a vacuum suction at both ends of the passage formed by the preheating mechanism 200, the circulation tee 320, and the circulation pipe 310. Under the dual action of the squeezing thrust and the vacuum suction, the aerosol flows back and forth along the folded storage cylinder 110, the preheating mechanism 200, the circulation tee 320, the circulation pipe 310, and the folded circulation cylinder 130, thereby preventing the aerosol in the folded storage cylinder 110 from condensing and settling. During this process, the preheating mechanism 200 heats the flowing aerosol, thereby further increasing the dispersion stability and flowability of the aerosol in the folded circulation cylinder 130.

[0041] To improve the stability of aerosol delivery during the low-concentration phase of smoke simulation: like Figures 2-3 As shown, the pre-storage mechanism 100 also includes a second gas supply valve 140; one end of the second gas supply valve 140 is connected to the folding circulation cylinder 130, and the other end is connected to the air conditioning supply pipe; When the pre-storage mechanism 100 extends to accommodate the aerosol, the first gas supply valve 120 opens as the folded storage cylinder 110 retracts, so that the folded storage cylinder 110 is connected to the air conditioning duct; the second gas supply valve 140 opens as the folded circulation cylinder 130 retracts, so that the folded circulation cylinder 130 is connected to the air conditioning duct.

[0042] In this embodiment, during the low-concentration smoke simulation stage, the first gas delivery valve 120 and the second gas delivery valve 140 close or open as the folded storage cylinder 110 and the folded circulation cylinder 130 extend or retract, respectively, to control the folded storage cylinder 110 and the folded circulation cylinder 130 to connect with the air conditioning duct during the retraction process. This allows the folded storage cylinder 110 or the folded circulation cylinder 130 to drive the aerosol inside it into the air conditioning duct through retraction, thereby improving the stability of aerosol delivery during the low-concentration smoke simulation stage.

[0043] To prevent the aerosols generated by the smoke generator and the aerosols accumulated in the pre-storage mechanism 100 from interfering with each other during their entry into the air supply duct: like Figures 2-3As shown, the flow guiding structure 300 also includes an intake three-way valve 330 and a diversion three-way valve 340; the first port of the intake three-way valve 330 is connected to the smoke generator, the second port is connected to the first port of the diversion three-way valve 340, and the third port is connected to the third port of the circulation three-way valve 320; the second port of the diversion three-way valve 340 is connected to the circulation pipe 310, and the third port is connected to the third port of the circulation three-way valve 320; when the pre-storage mechanism 100 retracts to output aerosol, the folded storage cylinder 110 retracts axially to drive the aerosol accumulated in the folded storage cylinder 110 into the air supply pipe through the first air supply valve 120; at the same time, the aerosol generated by the smoke generator enters the air conditioning supply pipe in sequence through the intake three-way valve 330, the diversion three-way valve 340, the circulation pipe 310, the folded circulation cylinder 130, and the second air supply valve 140.

[0044] In this embodiment, during the simulated sudden high-concentration smoke outbreak phase, the folded storage cylinder 110 is in an unfolded state, while the folded circulation cylinder 130 is in a compressed state. Then, the intake three-way valve 330 and the diversion three-way valve 340 control the smoke generator to connect with the circulation pipe 310, so that the aerosol generated by the smoke generator enters the air conditioning duct in sequence through the intake three-way valve 330, the diversion three-way valve 340, the circulation pipe 310, the folded circulation cylinder 130, and the second gas delivery valve 140.

[0045] Then the unfolded folding storage cylinder 110 retracts axially, while the folding circulation cylinder 130 moves axially to reduce the volume of the folding storage cylinder 110, so as to drive the aerosol accumulated in the folding storage cylinder 110 into the air supply pipe through the first air supply valve 120.

[0046] During this process, the aerosol generated by the smoke generator and the aerosol accumulated in the folded storage cylinder 110 enter the air supply duct along different paths to avoid mutual interference between the aerosol generated by the smoke generator and the aerosol accumulated in the folded storage cylinder 110 during their entry into the air supply duct.

[0047] To reduce aerosol loss while also reducing the operating pressure on smoke generators and smoke removal equipment: like Figures 2-3As shown, the flow guiding structure 300 also includes a return three-way valve 350; the first port of the return three-way valve 350 is connected to the third port of the intake three-way valve 330, the second port is connected to the exhaust pipe, and the third port is connected to the first port of the circulation three-way valve 320; the exhaust pipe is used to discharge aerosols in the simulated space; when the aerosols contained in the pre-storage mechanism 100 are output, the aerosols in the simulated space flow back to the simulated space in sequence through the exhaust pipe, the return three-way valve 350, the circulation three-way valve 320, the preheating mechanism 200, the folded storage cylinder 110, the first gas supply valve 120, and the air conditioning supply pipe, and are heated by the preheating mechanism 200; at the same time, the aerosols generated by the smoke generator enter the air conditioning supply pipe in sequence through the intake three-way valve 330, the diversion three-way valve 340, the circulation pipe 310, the folded circulation cylinder 130, and the second gas supply valve 140.

[0048] In this embodiment, in order to simulate the smoke inhalation into the air conditioning duct in an actual fire scenario, it is necessary to exhaust the air and aerosols in the simulated space through the smoke exhaust pipe. At the same time, in order to avoid aerosol leakage in the simulated space, it is necessary to ensure that the simulated space is in a slightly negative pressure state. The above environmental requirements include, but are not limited to, flight simulators. Since the amount of gas exhausted to maintain the simulated space in a slightly negative pressure state is less than the amount of gas exhausted by the smoke exhaust pipe in the simulated actual fire scenario, some aerosols are lost, while the working pressure of the smoke generator and smoke removal equipment is increased.

[0049] To address the aforementioned issues, during the high-concentration, stable phase of the smoke simulation, a return three-way valve 350 connects the exhaust pipe to the circulation three-way valve 320. This allows a portion of the aerosols and air within the exhaust pipe to sequentially enter the preheating mechanism 200 and be heated via the return three-way valve 350 and the circulation three-way valve 320. The heated aerosols and air then sequentially return to the simulated space via the folded storage cylinder 110, the first air supply valve 120, and the air conditioning supply pipe. This recycles the aerosols within the simulated space, thereby reducing the amount of aerosols generated by the smoke generator and purified by the smoke removal equipment, thus lowering the operating pressure on both the smoke generator and the smoke removal equipment.

[0050] Meanwhile, the aerosol generated by the smoke generator enters the air conditioning duct through the inlet three-way valve 330, the diversion three-way valve 340, the circulation pipe 310, the folding circulation cylinder 130, and the second air supply valve 140 in sequence. This allows the aerosol generated by the smoke generator and the aerosol recycled in the simulated space to enter the air duct along different paths, thereby avoiding interference between the aerosol generated by the smoke generator and the aerosol recycled in the simulated space as they enter the air duct.

[0051] To drive the independent movement of the folding storage cylinder 110 and the folding circulation cylinder 130: like Figure 1 and Figure 5As shown, it also includes an actuator 400; the actuator 400 includes a circulation bracket 410, a storage bracket 420 and two drive structures 430; the circulation bracket 410 is connected to the folding circulation cylinder 130; the storage bracket 420 is connected to the folding storage cylinder 110; the two drive structures 430 are respectively used to drive the circulation bracket 410 and the storage bracket 420 to move along the axial direction of the pre-storage mechanism 100.

[0052] To ensure the stability of the circulation support 410 and the storage support 420 during movement: like Figure 5 As shown, the actuator 400 also includes a guide rail 440 and a support bracket 450; the guide rail 440 is inserted into the support bracket 450; the circulation bracket 410 and the storage bracket 420 are both fitted onto the guide rail 440 and are slidably connected to the guide rail 440.

[0053] In order for the drive structure 430 to drive the circulation bracket 410 or the storage bracket 420 to move axially along the pre-storage mechanism 100: like Figure 5 As shown, the drive structure 430 includes a drive motor 431 and a lead screw 432; the drive motor 431 is mounted on the support bracket 450, and its rotation shaft is connected to the lead screw 432; the circulation bracket 410 and the storage bracket 420 are both fitted onto the lead screw 432 and screwed onto the lead screw 432.

[0054] In this embodiment, the two drive structures 430 respectively drive the circulation bracket 410 and the storage bracket 420 to move along the guide rail 440. The circulation bracket 410 and the storage bracket 420 cooperate to drive the folding circulation cylinder 130 to move or extend and retract along the axial direction. The storage bracket 420 drives the folding storage cylinder 110 to extend and retract along the axial direction, thereby driving the folding storage cylinder 110 and the folding circulation cylinder 130 to move independently.

[0055] In the above process, the guide rail 440 guides the circulation bracket 410 and the storage bracket 420 to move in a straight line to ensure that the folding storage cylinder 110 extends and retracts axially, and to ensure that the folding circulation cylinder 130 extends, retracts and moves axially. At the same time, the guide rail 440 and the drive structure 430 provide support during the movement of the circulation bracket 410 or the storage bracket 420, thereby transmitting and reducing the deflection stress generated during the movement of the circulation bracket 410 or the storage bracket 420, thus ensuring the stability of the circulation bracket 410 and the storage bracket 420 during the movement.

[0056] When the drive structure 430 moves the circulation bracket 410 or the storage bracket 420, the drive motor 431 drives the lead screw 432 to rotate, and the lead screw 432 drives the circulation bracket 410 or the storage bracket 420 to move along the guide rail 440 through the threaded engagement.

[0057] The present invention also provides a method of using an air conditioning air supply device, comprising the following steps: OP1 Smoke Simulation Preparation Stage: Actuator 400 drives pre-storage mechanism 100 to extend and retract axially, so that air flows back and forth along smoke generator, flow guide structure 300, preheating mechanism 200 and pre-storage mechanism 100 in sequence. During this process, preheating mechanism 200 heats the flowing air to preheat the flow channel between pre-storage mechanism 100 and smoke generator. After the flow channel between the pre-storage mechanism 100 and the smoke generator is preheated, the actuator 400 drives the folded storage cylinder 110 and the folded circulation cylinder 130 to extend and retract synchronously in opposite directions, so that the air moves back and forth along the folded storage cylinder 110, the guide structure 300, the preheating mechanism 200 and the folded circulation cylinder 130 in sequence. During this process, the preheating mechanism 200 heats the air flowing through it to preheat the pre-storage mechanism 100.

[0058] In this step: The first air supply valve 120 controls the folding storage cylinder 110 to disconnect from the air conditioning supply pipe. Then, the two drive structures 430 drive the circulation bracket 410 and the storage bracket 420 to move at the same speed along the extension direction, thereby causing the folding storage cylinder 110 to extend axially. This increases the volume of the folding storage cylinder 110 and generates suction, allowing ambient air to sequentially pass through the smoke generator, the intake three-way valve 330, the return three-way valve 350, the circulation three-way valve 320, and the preheating mechanism 200 into the folding storage cylinder 110. Then, the two drive structures 430 drive the circulation bracket 410 and the storage bracket 420 along the guide circle. The rail 440 moves at the same speed along the contraction direction to drive the folding storage cylinder 110 to contract axially, thereby reducing the volume of the folding storage cylinder 110. This drives the air inside the folding storage cylinder 110 to pass through the preheating mechanism 200, the circulation three-way valve 320, the return three-way valve 350, the intake three-way valve 330, and the smoke generator in sequence and then be discharged. The above steps are repeated to drive the air to flow back and forth along the smoke generator, the flow guide structure 300, the preheating mechanism 200, and the pre-storage mechanism 100 in sequence. During this process, the preheating mechanism 200 heats the flowing air to preheat the flow channel between the pre-storage mechanism 100 and the smoke generator.

[0059] After the flow channel between the pre-storage mechanism 100 and the smoke generator is preheated, the second air supply valve 140 controls the folding circulation cylinder 130 to disconnect from the air conditioning supply pipe, the intake three-way valve 330 or the return three-way valve 350 controls the circulation three-way valve 320 to disconnect from the smoke generator, and the diversion three-way valve 340 controls the circulation pipe 310 to connect with the circulation three-way valve 320. Then, the drive structure 430 drives the storage bracket 420 to move back and forth along the guide rail 440 so that the folding storage cylinder 110 and the folding circulation cylinder 130 can expand and contract synchronously in opposite directions, thereby driving the air to flow back and forth along the folding storage cylinder 110, the preheating mechanism 200, the circulation three-way valve 320, the circulation pipe 310 and the folding circulation cylinder 130. During this process, the preheating mechanism 200 heats the flowing air to preheat the pre-storage mechanism 100.

[0060] OP2 Smoke Simulation Low Concentration Stage: The actuator 400 drives the pre-storage mechanism 100 to extend axially, so that the volume of the pre-storage mechanism 100 gradually increases, thereby accommodating part of the aerosol flowing through the pre-storage mechanism 100, thereby reducing the amount of aerosol entering the air conditioning duct.

[0061] In this step: One drive structure 430 drives the circulation bracket 410 to move along the extension direction, and another drive structure 430 drives the storage bracket 420 to reciprocate along the guide rail 440, so that while the pre-storage mechanism 100 extends axially, the folding storage cylinder 110 and the folding circulation cylinder 130 extend and retract in opposite directions. During this process, the volume of the pre-storage mechanism 100 gradually increases, thereby accommodating part of the aerosol flowing through the pre-storage mechanism 100, thereby reducing the amount of aerosol entering the air conditioning duct.

[0062] When the folding storage cylinder 110 and the folding circulation cylinder 130 extend and retract synchronously in opposite directions, a squeezing force and a vacuum suction force are applied to both ends of the passage formed by the preheating mechanism 200, the circulation three-way valve 320, the steering three-way valve 340, and the circulation pipe 310, respectively. Under the dual action of the squeezing force and the vacuum suction force, the aerosol flows back and forth along the folding storage cylinder 110, the preheating mechanism 200, the circulation three-way valve 320, the steering three-way valve 340, the circulation pipe 310, and the folding circulation cylinder 130 in sequence. During this process, the preheating mechanism 200 heats the flowing aerosol, thereby heating it while driving the aerosol to flow.

[0063] During the above process, when the folding storage cylinder 110 or the folding circulation cylinder 130 retracts, the first gas supply valve 120 or the second gas supply valve 140 opens as the folding storage cylinder 110 or the folding circulation cylinder 130 retracts, so that the aerosol in the folding storage cylinder 110 or the folding circulation cylinder 130 enters the air conditioning duct through the first gas supply valve 120 or the second gas supply valve 140; when the folding storage cylinder 110 or the folding circulation cylinder 130 extends, the vacuum suction generated during the extension process accelerates the aerosol delivered by the smoke generator through the inlet three-way valve 330 and the return three-way valve 350 into the circulation three-way valve 320. The aerosol delivered by the smoke generator in the circulation three-way valve 320 mixes with the reciprocating aerosol and enters the folding storage cylinder 110 or the folding circulation cylinder 130 in the retracted state.

[0064] OP3 Smoke Simulation of Sudden High Concentration Outbreak Stage: Actuator 400 drives pre-storage mechanism 100 to contract axially to reduce the volume of pre-storage mechanism 100, thereby driving the aerosol accumulated in pre-storage mechanism 100 into the air conditioning duct.

[0065] In this step: the drive structure 430 drives the storage bracket 420 to move along the extension direction, so as to drive the folding storage cylinder 110 to extend while simultaneously driving the folding circulation cylinder 130 to contract, thereby allowing the aerosol in the folding circulation cylinder 130 to enter the folding storage cylinder 110. Then, the intake three-way valve 330 and the diversion three-way valve 340 control the smoke generator to connect with the circulation pipe 310, so that the aerosol delivered by the smoke generator passes through the intake three-way valve 330, the diversion three-way valve 340, the circulation pipe 310, the folding circulation cylinder 130, and the second air supply valve 140 in sequence and enters the air conditioning supply pipe. Then, the two drive structures 430 respectively drive the circulation bracket 410 and the storage bracket 420 to move along the contraction direction, so that the folding storage cylinder 110 contracts axially, thereby reducing the volume of the folding storage cylinder 110, so that the aerosol in the folding storage cylinder 110 enters the air conditioning supply pipe through the first air supply valve 120.

[0066] OP4 Smoke Simulation High Concentration Stable Stage: Some aerosols from the simulated space inside the exhaust pipe flow back to the simulated space through the return three-way valve 350, the circulation three-way valve 320, the preheating mechanism 200, the pre-storage mechanism 100, and the air conditioning supply pipe.

[0067] In this step: the return three-way valve 350 controls the connection between the exhaust pipe and the circulation three-way valve 320, so that some aerosol and air in the exhaust pipe enter the preheating mechanism 200 and are heated in sequence through the return three-way valve 350 and the circulation three-way valve 320. The heated aerosol and air are returned to the simulated space in sequence through the folded storage cylinder 110, the first air supply valve 120 and the air conditioning supply pipe.

[0068] At the same time, the intake three-way valve 330 and the diversion three-way valve 340 control the connection between the smoke generator and the circulation pipe 310, so that the aerosol delivered by the smoke generator enters the air conditioning air supply pipe in sequence through the intake three-way valve 330, the diversion three-way valve 340, the circulation pipe 310, the folding circulation cylinder 130, and the second air supply valve 140.

[0069] OP5 Smoke Simulation Termination Stage: The aerosol from the smoke generator and its connection with the flow guide structure 300 enters the exhaust pipe sequentially through the inlet three-way valve 330 and the return three-way valve 350; in addition, the actuator 400 drives the pre-storage mechanism 100 to extend and retract axially, thereby driving the aerosol in the pre-storage mechanism 100 to enter the exhaust pipe through the flow guide structure 300, and drawing air from the air conditioning supply duct into the pre-storage mechanism 100.

[0070] In this step: the intake three-way valve 330 and the return three-way valve 350 control the connection between the smoke generator and the exhaust pipe. Then, the aerosol inside the smoke generator and between it and the guide structure 300 enters the exhaust pipe through the intake three-way valve 330 and the return three-way valve 350 in sequence.

[0071] After the aerosol inside the smoke generator is emptied, the return three-way valve 350 controls the circulation three-way valve 320 to connect with the smoke exhaust pipe, and the diversion three-way valve 340 controls the circulation pipe 310 to connect with the circulation three-way valve 320. Then, the first gas supply valve 120 and the second gas supply valve 140 respectively control the folded storage cylinder 110 and the folded circulation cylinder 130 to connect with the air conditioning supply pipe.

[0072] Then, the two drive structures 430 respectively drive the circulation bracket 410 and the storage bracket 420 to extend axially, so that the folding storage cylinder 110 and the folding circulation cylinder 130 extend axially, thereby driving the air in the air conditioning supply pipe to enter the folding storage cylinder 110 and the folding circulation cylinder 130 through the first air supply valve 120 and the second air supply valve 140 respectively. Then, the first air supply valve 120 and the second air supply valve 140 respectively control the folding storage cylinder 110 and the folding circulation cylinder 130 to disconnect from the air conditioning supply pipe. Then, the two drive structures 430 30 drives the circulation support 410 and the storage support 420 to contract axially, so that the folded storage cylinder 110 and the folded circulation cylinder 130 contract axially. Then, the aerosol in the folded storage cylinder 110 enters the exhaust pipe through the preheating mechanism 200, the circulation three-way valve 320 and the return three-way valve 350 in sequence, while the aerosol in the folded circulation cylinder 130 enters the exhaust pipe through the circulation pipe 310, the diversion three-way valve 340, the circulation three-way valve 320 and the return three-way valve 350 in sequence. The above steps are repeated until the residual aerosol in the device is discharged.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air conditioning air supply device, characterized in that: Including pre-deposit institutions (100); One end of the pre-storage mechanism (100) is connected to the smoke generator, and the other end is connected to the air conditioning duct to form a delivery path that guides the aerosol output by the smoke generator into the simulated space. The pre-storage mechanism (100) is configured to extend and retract along the axial direction; When the pre-storage mechanism (100) extends axially, its volume gradually increases to accommodate a portion of the aerosol, thereby reducing the amount of aerosol entering the air conditioning duct. When the pre-storage mechanism (100) contracts axially, its volume gradually decreases so that the aerosol accumulated in the pre-storage mechanism (100) enters the air conditioning duct.

2. The air conditioning air supply device according to claim 1, characterized in that: It also includes a preheating mechanism (200); The preheating mechanism (200) is connected between the smoke generator and the pre-storage mechanism (100) and is used to heat the gaseous medium flowing through it.

3. The air conditioning air supply device according to claim 2, characterized in that: The preheating mechanism (200) includes a preheating cylinder (210) and a solar thermal tube (220); The preheating cylinder (210) includes a cylinder body (211) and a light-transmitting plate (212) installed on the cylinder body (211). One end of the cylinder (211) is connected to the smoke generator, and the other end is connected to the pre-storage mechanism (100). The photothermal tube (220) is located on the outside of the cylinder (211), and the light radiation it outputs passes through the light-transmitting plate (212) and enters the cylinder (211) to heat the aerosol flowing through the preheating cylinder (210).

4. The air conditioning air supply device according to claim 2, characterized in that: The pre-storage mechanism (100) includes a folding storage cylinder (110) and a first gas supply valve (120). The folding storage cylinder (110) is connected to the preheating mechanism (200) and is configured to extend and retract axially; One end of the first gas supply valve (120) is connected to the folded storage cylinder (110), and the other end is connected to the air conditioning supply pipe, which is used to control the connection and disconnection between the folded storage cylinder (110) and the air conditioning supply pipe; When the flow channel between the pre-storage mechanism (100) and the smoke generator is preheated, the first gas supply valve (120) is closed, and at the same time the folded storage cylinder (110) reciprocates along the axial direction to drive the gas to flow back and forth along the folded storage cylinder (110), the preheating mechanism (200) and the smoke generator in sequence, and to be continuously heated by the preheating mechanism (200).

5. The air conditioning air supply device according to claim 4, characterized in that: It also includes a flow guiding structure (300); The flow guiding structure (300) includes a circulation pipe (310); The pre-storage mechanism (100) also includes a folding circulation cylinder (130); The folding circulation cylinder (130) is connected to the folding storage cylinder (110) and is configured to extend and retract along the axial direction; One end of the circulation tube (310) is connected to the folded storage tube (110), and the other end is connected to the folded circulation tube (130). When the pre-storage mechanism (100) extends to accommodate aerosols, the folded circulation cylinder (130) moves axially and reciprocates while extending and retracting. At the same time, the folded storage cylinder (110) extends and retracts synchronously in the opposite direction relative to the folded circulation cylinder (130) to drive the aerosols to flow reciprocally along the folded storage cylinder (110), the circulation pipe (310) and the folded circulation cylinder (130) in sequence.

6. The air conditioning air supply device according to claim 5, characterized in that: The flow guiding structure (300) also includes a circulation tee (320); The first port of the circulation tee (320) is connected to the circulation pipe (310), the second port is connected to the preheating mechanism (200), and the third port is connected to the smoke generator; When the pre-storage mechanism (100) extends to accommodate the aerosol, the aerosol flows back and forth along the folded storage cylinder (110), the preheating mechanism (200), the circulation tee (320), the circulation pipe (310), and the folded circulation cylinder (130), and is continuously heated by the preheating mechanism (200).

7. The air conditioning air supply device according to claim 6, characterized in that: The pre-storage mechanism (100) also includes a second gas supply valve (140); One end of the second gas valve (140) is connected to the folded circulation cylinder (130), and the other end is connected to the air conditioning supply pipe; When the pre-storage mechanism (100) extends to accommodate aerosols, the first gas delivery valve (120) opens as the folded storage cylinder (110) contracts, so that the folded storage cylinder (110) is connected to the air conditioning duct; the second gas delivery valve (140) opens as the folded circulation cylinder (130) contracts, so that the folded circulation cylinder (130) is connected to the air conditioning duct.

8. The air conditioning air supply device according to claim 7, characterized in that: The flow guiding structure (300) also includes an intake three-way valve (330) and a steering three-way valve (340). The first port of the intake three-way valve (330) is connected to the smoke generator, the second port is connected to the first port of the steering three-way valve (340), and the third port is connected to the third port of the circulation three-way valve (320). The second port of the steering three-way valve (340) is connected to the circulation pipe (310), and the third port is connected to the third port of the circulation three-way valve (320); When the pre-storage mechanism (100) contracts to output aerosol, the folded storage cylinder (110) contracts axially to drive the aerosol accumulated in the folded storage cylinder (110) into the air supply pipe through the first air supply valve (120); Meanwhile, the aerosol generated by the smoke generator enters the air conditioning duct through the intake three-way valve (330), the steering three-way valve (340), the circulation pipe (310), the folding circulation cylinder (130), and the second air supply valve (140) in sequence.

9. The air conditioning air supply device according to claim 8, characterized in that: The flow guiding structure (300) also includes a return three-way valve (350); The first port of the return three-way valve (350) is connected to the third port of the intake three-way valve (330), the second port is connected to the exhaust pipe, and the third port is connected to the first port of the circulation three-way valve (320). The exhaust pipe is used to discharge aerosols from the simulated space; When the aerosol contained in the pre-storage mechanism (100) is completed and output, the aerosol in the simulated space flows back to the simulated space in sequence through the exhaust pipe, the return three-way valve (350), the circulation three-way valve (320), the preheating mechanism (200), the folded storage cylinder (110), the first gas supply valve (120) and the air conditioning supply pipe, and is heated by the preheating mechanism (200); Meanwhile, the aerosol generated by the smoke generator enters the air conditioning duct through the intake three-way valve (330), the steering three-way valve (340), the circulation pipe (310), the folding circulation cylinder (130), and the second air supply valve (140) in sequence.

10. The air conditioning air supply device according to claim 9, characterized in that: It also includes the implementing agency (400); The actuator (400) includes a circulation bracket (410), a storage bracket (420), and two drive structures (430). The circulation bracket (410) is connected to the folding circulation cylinder (130). The storage bracket (420) is connected to the folding storage tube (110). The two drive structures (430) are respectively used to drive the circulation bracket (410) and the storage bracket (420) to move along the axial direction of the pre-storage mechanism (100).

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