Condenser exhaust for aircraft

Abstract

The utility model discloses a condenser exhaust device for airplane belongs to condenser exhaust technical field, and its technical scheme main points include the through -connection, the surface welding of through -connection has the connecting mechanism, the top threaded connection of connecting mechanism has the exhaust mechanism, and exhaust mechanism integrated temperature sensor and PLC controller can real -time monitoring the gas temperature in the air inlet tank, and through the switch of preset program automatic control solenoid valve, realize the identification and shunt discharge of non -condensable gas, refrigerant mist gas and liquid, avoid the exhaust not thoroughly or refrigerant waste caused by manual operation error, meet the requirement of environmental protection law to refrigerant recovery, through the solenoid valve of shunt pipe both sides connects exhaust pipe and the connecting pipe respectively, can switch the discharge path according to the gas type, such as non -condensable gas through exhaust pipe and directly discharge, and the refrigerant is introduced into the recovery equipment through the connecting pipe, and the environmental protection and the operation convenience are given full consideration to.

Description

Technical Field

[0001] This utility model relates to the field of condenser exhaust technology, and in particular to an aircraft condenser exhaust device. Background Technology

[0002] Aircraft condenser exhaust typically refers to the removal of non-condensable gases mixed in with the refrigeration system, such as air, nitrogen, and gases produced by moisture evaporation. If these gases accumulate in the condenser, they will occupy heat exchange space, increase system pressure, seriously affect heat exchange efficiency, and even lead to equipment failure. Due to the stringent requirements of aircraft systems for safety, reliability, and adaptability to extreme environments, their exhaust design must take into account the type of refrigeration cycle, such as vapor compression or air circulation, the operating environment (high altitude or ground), and maintenance needs.

[0003] To address the aforementioned issues, existing patents have provided solutions. However, existing aircraft condenser exhaust devices lack a structure for automatically venting the condenser during ground maintenance. This necessitates manual operation of the exhaust valve during ground maintenance, thereby extending ground maintenance time.

[0004] Therefore, an exhaust device for aircraft condensers is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an aircraft condenser exhaust device that solves the problem that existing condenser exhaust systems lack an automatic exhaust mechanism for condensers during ground maintenance, resulting in the need for manual operation of the exhaust valve during ground maintenance, thus extending ground maintenance time.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an exhaust device for an aircraft condenser, comprising a connecting pipe, a connecting mechanism welded to the surface of the connecting pipe, an exhaust mechanism threadedly connected to the top of the connecting mechanism, and electromagnetic one-way valves installed on the top of the connecting pipe and both sides of the exhaust mechanism. The exhaust mechanism comprises an air inlet tank, an air inlet pipe, a temperature sensor, a connecting plate, a PLC controller, an air outlet pipe, a diverter pipe, an exhaust pipe, and a connecting pipe. The air inlet tank is welded to the bottom of the air outlet pipe, the air inlet pipe is welded to the bottom of the air inlet tank, and the bottom of the air inlet pipe is threadedly connected to the inner side of the top of the connecting mechanism. The temperature sensor is installed at the bottom right side of the air inlet tank, and the detection end on the left side of the temperature sensor penetrates and extends to the inner side of the air inlet tank. The connecting plate is welded to the surface of the air inlet tank.

[0007] Preferably, the PLC controller is installed on the rear side of the top of the connecting plate, the air outlet pipe is welded to the top of the air inlet tank, the diverter pipe is welded to the top of the air outlet pipe, the electromagnetic single-way valve is installed on both sides of the diverter pipe, the exhaust pipe is installed on the right side of the right electromagnetic single-way valve, and the connecting pipe is installed on the left side of the left electromagnetic single-way valve.

[0008] Preferably, the connection mechanism includes a connecting flange, a piping, a transition pipe, and a connecting bolt hole, wherein the connecting flange is welded to the surface of the connecting pipe.

[0009] Preferably, the piping is welded to the top of the bottom electromagnetic one-way valve, and the connecting screw holes are respectively opened on the inner side of the top and bottom of the transition pipe.

[0010] Preferably, the transition pipe is threaded to the top of the piping, and the bottom of the intake pipe is threaded to the inside of the top of the transition pipe.

[0011] Preferably, an expansion pipe is welded to the right side of the exhaust pipe, and a dust filter is movably connected to the right side of the inner side of the expansion pipe, the surface of which is coated with an anti-corrosion coating.

[0012] Preferably, a sealing gasket is provided on the bottom surface of the connecting flange, and the sealing gasket is made of rubber material.

[0013] Preferably, the connecting plate has fixing screw holes on both sides of the rear side, and fixing screws are threaded into the inner side of the fixing screw holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The connection mechanism of this application achieves a tight seal between the connecting pipe and the exhaust mechanism through the connecting flange and the threaded connection design of the transition pipe, effectively preventing refrigerant or gas leakage. The transition pipe is threaded to the piping and the intake pipe through the connecting screw hole. The structural design of the connecting flange facilitates quick docking with the condenser and simplifies the installation process.

[0016] 2. The exhaust mechanism of this application integrates a temperature sensor and a PLC controller, which can monitor the gas temperature in the intake tank in real time. Through a preset program, it automatically controls the opening and closing of the electromagnetic single-way valve to identify and divert non-condensable gases, refrigerant mist, and liquids, avoiding incomplete exhaust or refrigerant waste caused by human operation errors. It meets the environmental protection requirements for refrigerant recovery. The electromagnetic single-way valves on both sides of the diversion pipe are connected to the exhaust pipe and the connecting pipe, respectively. The exhaust path can be automatically switched according to the gas type. For example, non-condensable gases are directly discharged through the exhaust pipe, and refrigerant is introduced into the recovery equipment through the connecting pipe, which takes into account both environmental protection and ease of operation. Attached Figure Description

[0017] Figure 1This is an overall structural diagram of the aircraft condenser exhaust device of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the diversion tube of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the air inlet tank of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the sealing gasket of this utility model.

[0022] In the diagram, 1. Connecting pipe; 2. Connecting mechanism; 21. Connecting flange; 22. Piping; 23. Transition pipe; 24. Connecting screw hole; 3. Exhaust mechanism; 31. Air inlet tank; 32. Air inlet pipe; 33. Temperature sensor; 34. Connecting plate; 35. PLC controller; 36. Air outlet pipe; 37. Diverter pipe; 38. Exhaust pipe; 39. Connecting pipe; 4. Solenoid one-way valve; 5. Expansion pipe; 6. Dust filter; 7. Sealing gasket; 8. Fixing screw hole; 9. Fixing screw. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 The present invention provides the following technical solution:

[0025] An exhaust device for an aircraft condenser includes a connecting pipe 1, a connecting mechanism 2 welded to the surface of the connecting pipe 1, an exhaust mechanism 3 threadedly connected to the top of the connecting mechanism 2, and electromagnetic one-way valves 4 installed on the top of the connecting pipe 1 and both sides of the exhaust mechanism 3. The exhaust mechanism 3 includes an air inlet tank 31, an air inlet pipe 32, a temperature sensor 33, a connecting plate 34, a PLC controller 35, an air outlet pipe 36, a diverter pipe 37, an exhaust pipe 38, and a connecting pipe 39. The air inlet tank 31 is welded to the bottom of the air outlet pipe 36, the air inlet pipe 32 is welded to the bottom of the air inlet tank 31, and the bottom of the air inlet pipe 32 is threadedly connected to the inner side of the top of the connecting mechanism 2. The temperature sensor 33 is installed at the bottom right side of the air inlet tank 31, and the detection end of the temperature sensor 33 on the left side penetrates and extends to the inner side of the air inlet tank 31. The connecting plate 34 is welded to the surface of the air inlet tank 31.

[0026] In this embodiment: By connecting the connecting pipe 1 to the condenser and providing a stable gas flow channel, the electromagnetic one-way valve 4 acts as a switch for the exhaust path, rapidly opening or closing under the control of the PLC controller 35 to control the gas flow and direction, thus achieving the classification and processing of non-condensable gases and refrigerant. The inlet tank 31 provides temporary storage and buffer space for the incoming gas, allowing for thorough mixing and facilitating temperature detection by the temperature sensor 33. The inlet pipe 32 serves as a transition channel for gas to enter the inlet tank 31 from the connecting mechanism 2, achieving a stable connection with the connecting mechanism 2 through a threaded connection to ensure smooth gas transmission. The temperature sensor 33's detection end extends into the inlet tank 31, enabling real-time acquisition of gas temperature data, providing crucial information for the PLC controller 35 to determine the gas type (non-condensable gas, refrigerant vapor, etc.). The connecting plate 34 is connected to the PLC controller 35. 5 provides an installation carrier, and the entire exhaust mechanism 3 can be fixed to the machine body through connectors. The PLC controller 35 receives the signal from the temperature sensor 33 and automatically controls the opening and closing state of the electromagnetic one-way valve 4 in combination with the preset program to realize intelligent control of the exhaust process, avoid human operation errors, and improve exhaust accuracy and efficiency. The exhaust pipe 36 guides the gas in the intake tank 31 to the diversion pipe 37. The diversion pipe 37 distributes the gas from the exhaust pipe 36 to the two side channels, providing channels for the classification and treatment of different types of gases, such as direct discharge of non-condensable gases and refrigerant recovery. The exhaust pipe 38 is used to discharge non-condensable gases. By cooperating with the electromagnetic one-way valve 4, directional exhaust is achieved. The connecting pipe 39 is used to connect to the external refrigerant recovery equipment. The electromagnetic one-way valve 4 controls the flow direction of the refrigerant to ensure that the refrigerant is accurately introduced into the recovery system, which meets environmental protection regulations and reduces resource waste.

[0027] Specifically, such as Figure 2 , Figure 3 As shown, the PLC controller 35 is installed on the rear side of the top of the connecting plate 34, the exhaust pipe 36 is welded to the top of the air inlet tank 31, the diversion pipe 37 is welded to the top of the exhaust pipe 36, the electromagnetic single-way valve 4 is installed on both sides of the diversion pipe 37, the exhaust pipe 38 is installed on the right side of the right electromagnetic single-way valve 4, and the connecting pipe 39 is installed on the left side of the left electromagnetic single-way valve 4.

[0028] Specifically, such as Figure 4 As shown, the connecting mechanism 2 includes a connecting flange 21, a pipe 22, a transition pipe 23, and a connecting bolt hole 24. The connecting flange 21 is welded to the surface of the connecting pipe 1.

[0029] Specifically, such as Figure 4 As shown, the piping 22 is welded to the top of the bottom electromagnetic single-way valve 4, and the connecting screw holes 24 are respectively opened on the inner side of the top and bottom of the transition pipe 23.

[0030] In this embodiment: a rigid connection with the condenser interface is formed by setting a connecting flange 21, and a high-strength, anti-loosening connection can be achieved with fasteners such as bolts. Pipe 22 serves as a gas transmission channel between connecting pipe 1 and transition pipe 23. It is connected to the bottom solenoid single-way valve 4 by welding to ensure the continuity of gas flow. The transition pipe 23 is connected to pipe 22 and inlet pipe 32 by threaded connection. The connecting screw hole 24 provides a structural basis for the threaded connection between transition pipe 23 and pipe 22 and inlet pipe 32. Tight sealing is achieved through thread engagement.

[0031] Specifically, such as Figure 4 As shown, the transition pipe 23 is threaded to the top of the piping 22, and the bottom of the intake pipe 32 is threaded to the inside of the top of the transition pipe 23.

[0032] Specifically, such as Figure 2 As shown, an expansion pipe 5 is welded to the right side of the exhaust pipe 38, and a dust filter 6 is movably connected to the right side of the inner side of the expansion pipe 5. The surface of the dust filter 6 is coated with an anti-corrosion coating.

[0033] In this embodiment: by setting up the expansion pipe 5, the cross-sectional area of ​​the exhaust port is increased, reducing the flow rate and pressure loss when the gas is discharged, reducing the impact of the airflow on surrounding components, and providing a stable installation space for the dust filter 6. By setting up the dust filter 6, dust and impurities in the outside air can be effectively filtered to prevent them from entering the exhaust pipe 38 and the inside of the device and causing blockage or pollution. By setting up the anti-corrosion coating, the corrosion resistance of the filter in humid or refrigerant environments is enhanced, and the service life is extended.

[0034] Specifically, such as Figure 5 As shown, a sealing gasket 7 is provided on the bottom surface of the connecting flange 21. The sealing gasket 7 is made of rubber material.

[0035] Specifically, such as Figure 3 As shown, fixing screw holes 8 are provided on both sides of the rear side of the connecting plate 34, and fixing screws 9 are threadedly connected to the inner side of the fixing screw holes 8.

[0036] In this embodiment: by setting the sealing gasket 7, gas leakage is effectively prevented. At the same time, the rubber material has a certain shock absorption and cushioning effect. By setting the sealing gasket 7 to be made of rubber material, the elastic deformation characteristics of rubber can be used to tightly fill the tiny gap between the connecting flange 21 and the external equipment mating surface, significantly improving the sealing performance of the connection part. By setting the fixing screw hole 8, a threaded connection base for the fixing screw 9 is provided. By setting the fixing screw 9 and engaging with the thread of the fixing screw hole 8, the entire exhaust device is firmly fixed to the mounting bracket of the aircraft body.

[0037] Working Principle: First, the operator connects the connecting pipe 1 to the exhaust valve at the top of the condenser. After connection, gas in the condenser enters through the connecting pipe 1. Then, the PLC controller 35 controls the bottom solenoid single-way valve 4 to open. At this time, the gas enters the transition pipe 23 through the connecting pipe 1. The inlet pipe 32 is connected to the transition pipe 23 via a threaded connection, smoothly guiding the gas into the inlet tank 31. The inlet tank 31 provides temporary storage and buffer space for the gas, allowing it to mix thoroughly. Meanwhile, the temperature sensor 33 detects the gas temperature, collects temperature data in real time, and transmits it to the PLC controller 35. Then, the PLC controller 35 receives the signal from the temperature sensor 33 and, in conjunction with a preset program... The system determines the gas type, such as non-condensable gas or refrigerant, and sends a control command to the corresponding solenoid single-way valve 4. At this time, the gas in the inlet tank 31 enters the distribution pipe 37 through the outlet pipe 36. The distribution pipe 37 distributes the gas to the two side channels. Then, if non-condensable gas is detected, the PLC controller 35 controls the solenoid single-way valve 4 on the right side of the distribution pipe 37 to open, and the gas is discharged through the exhaust pipe 38. If refrigerant is detected, the solenoid single-way valve 4 on the left side opens, and the gas is introduced into the external recovery equipment through the pipe 39 to realize resource recovery. Finally, after the exhaust is completed, the PLC controls the three solenoid single-way valves 4 to close and separates the connecting pipe 1 from the exhaust valve at the top of the condenser.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An exhaust device for an aircraft condenser, comprising a connecting pipe (1), characterized in that: A connecting mechanism (2) is welded to the surface of the connecting pipe (1). An exhaust mechanism (3) is threaded to the top of the connecting mechanism (2). Electromagnetic one-way valves (4) are installed on the top of the connecting pipe (1) and both sides of the exhaust mechanism (3). The exhaust mechanism (3) includes an air inlet tank (31), an air inlet pipe (32), a temperature sensor (33), a connecting plate (34), a PLC controller (35), an air outlet pipe (36), a diverter pipe (37), an exhaust pipe (38), and a connecting pipe. (39) The air inlet tank (31) is welded to the bottom of the air outlet pipe (36), the air inlet pipe (32) is welded to the bottom of the air inlet tank (31), the bottom of the air inlet pipe (32) is threaded to the inner side of the top of the connecting mechanism (2), the temperature sensor (33) is installed at the bottom right side of the air inlet tank (31), the detection end of the left side of the temperature sensor (33) penetrates and extends to the inner side of the air inlet tank (31), and the connecting plate (34) is welded to the surface of the air inlet tank (31).

2. The condenser exhaust device for aircraft according to claim 1, characterized in that: The PLC controller (35) is installed on the rear side of the top of the connecting plate (34). The exhaust pipe (36) is welded to the top of the air inlet tank (31). The diversion pipe (37) is welded to the top of the exhaust pipe (36). The electromagnetic single-way valve (4) is installed on both sides of the diversion pipe (37). The exhaust pipe (38) is installed on the right side of the right electromagnetic single-way valve (4). The connecting pipe (39) is installed on the left side of the left electromagnetic single-way valve (4).

3. The condenser exhaust device for aircraft according to claim 1, characterized in that: The connecting mechanism (2) includes a connecting flange (21), a pipe (22), a transition pipe (23), and a connecting bolt hole (24). The connecting flange (21) is welded to the surface of the connecting pipe (1).

4. The condenser exhaust device for aircraft according to claim 3, characterized in that: The piping (22) is welded to the top of the bottom electromagnetic single-way valve (4), and the connecting screw holes (24) are respectively opened on the inner side of the top and bottom of the transition pipe (23).

5. The condenser exhaust device for aircraft according to claim 3, characterized in that: The transition pipe (23) is threaded to the top of the piping (22), and the bottom of the air intake pipe (32) is threaded to the inside of the top of the transition pipe (23).

6. The condenser exhaust device for aircraft according to claim 1, characterized in that: An expansion pipe (5) is welded to the right side of the exhaust pipe (38), and a dust filter (6) is movably connected to the right side of the inner side of the expansion pipe (5). The surface of the dust filter (6) is coated with an anti-corrosion coating.

7. The condenser exhaust device for aircraft according to claim 3, characterized in that: A sealing gasket (7) is provided on the bottom surface of the connecting flange (21), and the sealing gasket (7) is made of rubber material.

8. The condenser exhaust device for aircraft according to claim 1, characterized in that: The connecting plate (34) has fixing screw holes (8) on both sides of the rear side, and fixing screws (9) are threaded into the inner side of the fixing screw holes (8).

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