CN115848629A - Evaporation circulation refrigeration device and method integrated with maintenance channel - Google Patents

Abstract

The invention discloses an evaporation cycle refrigerating device integrated with a maintenance channel, wherein an outlet of a condenser assembly (1) is connected with a refrigerant inlet end of an evaporator assembly (4), a refrigerant outlet end of the evaporator assembly (4) is connected with an inlet end of a compressor (3), and an outlet end of the compressor (3) is connected with an inlet end of the condenser assembly (1); the air inlet and the air outlet of the evaporator assembly (4) are respectively connected with an air return inlet (7) and an air supply outlet (5) in a cockpit (6), and the condenser assembly (1) is arranged in a maintenance channel at the bottom of the equipment cabin through a hinge (2) and serves as a maintenance cover; the cockpit and the equipment cabin are separated from the floor (8) by the cockpit. The invention fully utilizes the space installation equipment of the maintenance channel and utilizes the space between the frame beam structures as the air channel, so that the whole set of evaporation cycle refrigeration system is more compact in layout and occupies less space.

Description

An evaporative cycle refrigeration device and method integrated with a maintenance channel

technical field

The invention belongs to the technical field of helicopter environmental control systems, and relates to an evaporation cycle refrigeration device and method integrated with a maintenance channel.

Background technique

With the continuous advancement of helicopter technology, the comfort requirements in the helicopter cabin are gradually increasing, and the number of onboard equipment is increasing sharply. Therefore, the available space and available weight on the helicopter are very tight. As shown in the figure, the evaporative cycle refrigeration device designed in the past for helicopters takes up a lot of space on the aircraft, and each component occupies an independent space, and the distance is far away, requiring an additional long refrigerant pipeline, as shown in Figure 5. In addition, the conventional layout also needs to open large holes on both sides of the machine body to arrange the air pipeline. While the opening affects the strength of the machine body, the air path is not smooth. The conventional layout takes up a lot of space and increases the weight of the equipment. It is difficult to adapt in the future. Tighter installation space constraints. It is very difficult to install refrigeration devices and arrange air ducts in the limited installation space of helicopters.

Contents of the invention

Purpose of the invention: to provide an evaporative cycle refrigeration device and method integrated with the maintenance channel. The invention makes full use of the maintenance channel space to install equipment, and utilizes the space between the frame and beam structures as an air duct, so that the layout of the entire evaporative cycle refrigeration system is more compact and occupies less space.

Technical solution: An evaporative cycle refrigeration device integrated with the maintenance channel, the outlet of the condenser assembly is connected to the refrigerant inlet of the evaporator assembly, the refrigerant outlet of the evaporator assembly is connected to the inlet of the compressor, and the outlet of the compressor It is connected with the inlet end of the condenser assembly; the inlet and outlet of the air end of the evaporator assembly are respectively connected with the air return port and the air supply port in the cockpit. Access cover; cockpit and equipment compartment separated by cockpit and floor.

In the aforementioned evaporative cycle refrigeration device integrated with the maintenance channel, the compressor is arranged on the hinge side of the condenser assembly nearby.

In the aforementioned evaporative cycle refrigeration device integrated with the maintenance channel, the drain port of the evaporator assembly is located above the condenser assembly.

In the aforementioned evaporative cycle refrigeration device integrated with the maintenance channel, fresh air inlets are provided on both sides of the equipment compartment; during operation, external air enters from the fresh air inlets on both sides and is discharged downward through the condenser assembly.

In the aforementioned evaporative cycle refrigeration device integrated with the maintenance channel, the evaporator assembly includes an evaporator shell, an evaporator core, an evaporator core support, and a drain, and the evaporator core is connected to the evaporator through the evaporator core support. Inside the shell, the evaporator core can be quickly disassembled from the bottom of the evaporator shell; the water generated by the condensation of the evaporator core flows out through the drain at the bottom of the evaporator shell.

Among the above-mentioned evaporative cycle refrigeration devices integrated with the maintenance passage, they are integrally arranged in the equipment compartment under the floor of the cockpit.

In the above method of using the evaporative cycle refrigeration device integrated with the maintenance channel, the condensed water discharged from the drain port of the evaporator flows to the condenser assembly to realize heat dissipation.

In the aforementioned method of using the evaporative cycle refrigeration device integrated with the maintenance channel, the condensed air flow enters from the fresh air inlets on both sides of the equipment compartment, passes through the condenser assembly, and is discharged downward.

Beneficial effects: In the helicopter evaporative cycle refrigeration device of the present invention, the innovative condenser assembly is arranged at the bottom of the fuselage as a maintenance access cover through a hinge, which hardly occupies the internal space of the helicopter, which not only solves the problem of large space required by the condenser, but also facilitates Maintenance: Condensed air enters from both sides of the helicopter body, and is discharged from the bottom of the body through the condenser. There is no need to arrange additional condensing air ducts, and the air resistance is small, and the cooling efficiency is high; combined with the space of the helicopter, the evaporator components are arranged in the condensing Directly above the condenser, the condensed water can be directly discharged through the condenser, and at the same time improve the heat dissipation of the condenser; the compressor and the refrigeration electric control box are arranged above the hinge side of the condenser assembly, which greatly shortens the refrigerant pipeline, which is comparable to the conventional arrangement. It is 70% shorter than the refrigerant pipeline, and the weight is reduced by more than 4kg; the overall arrangement is under the floor of the cockpit, and the return air is simple and convenient for air distribution during cooling.

Description of drawings

Figure 1 is a schematic diagram of the front view of the layout of the helicopter evaporative cycle refrigeration device;

Figure 2 is a schematic diagram of the front view of the helicopter evaporative cycle refrigeration device during maintenance;

Figure 3 is a schematic left view diagram of the layout of the helicopter evaporative cycle refrigeration device;

Figure 4 Schematic diagram of disassembly of the evaporator assembly;

Figure 5. Schematic diagram of the conventional layout of the helicopter refrigeration unit.

Reference signs: 1-condenser assembly; 2-hinge; 3-compressor; 4-evaporator assembly; 41-evaporator shell; 42-evaporator core; 43-evaporator core mounting bracket; 44- Drain outlet; 5-air supply outlet; 6-cockpit; 7-return air outlet; 8-cockpit floor; 9-fresh air inlet; 10-heating component.

Detailed ways

Example 1. An evaporative cycle refrigeration device integrated with the maintenance channel, refer to Figure 1-Figure 4, the outlet of the condenser assembly 1 is connected to the refrigerant inlet of the evaporator assembly 4, and the refrigerant outlet of the evaporator assembly 4 is connected to the inlet of the compressor 3 The outlet end of the compressor 3 is connected to the inlet end of the condenser assembly 1; the inlet and outlet of the air end of the evaporator assembly 4 are respectively connected with the air return port 7 and the air supply port 5 in the cockpit 6, and it is characterized in that the condenser The assembly 1 is arranged in the maintenance channel at the bottom of the equipment compartment through the hinge 2 as a maintenance hatch; the cockpit and the equipment compartment are separated by the cockpit and the floor 8 .

The compressor 3 is arranged on the side of the hinge 2 of the condenser assembly 1 nearby.

The drain port 44 of the evaporator assembly 4 is located above the condenser assembly 1 . With this structure, the heat dissipation efficiency of the condenser assembly 1 can be improved by condensed water dripping onto the condenser assembly 1 .

Fresh air inlets 9 are also provided on both sides of the aforementioned equipment compartment; during operation, external air enters from the fresh air inlets 9 on both sides and is discharged downward through the condenser assembly 1 .

The aforementioned evaporator assembly 4 includes an evaporator shell 41, an evaporator core 42, an evaporator core support 43 and a drain port 44, and the evaporator core 42 is connected to the evaporator shell 41 through the evaporator core support 43 The evaporator core can be quickly disassembled from the bottom of the evaporator shell; the water generated by condensation of the evaporator core 42 flows out through the drain port 44 at the bottom of the evaporator shell 41 .

The evaporative cycle refrigeration device is integrally arranged in the equipment compartment below the cockpit floor 8 .

The condensed water discharged from the aforementioned evaporator drain port 44 flows to the condenser assembly 1 to realize heat dissipation.

The condensed airflow of the evaporative cycle refrigeration device enters from the fresh air inlets 9 on both sides of the equipment compartment, flows through the condenser assembly 1 and is discharged downward.

Example 2. As shown in Figure 1, the helicopter evaporative cycle refrigeration device is overall arranged in the space under the floor of the helicopter cockpit 6, and the condenser assembly 1 is arranged at the bottom of the fuselage through the hinge 2 and can also be used as a maintenance access cover for the helicopter, which is convenient for maintenance.

As shown in Figure 2, when maintaining the internal equipment, the condenser assembly 1 is flipped open through the hinge, and maintenance personnel enter the maintenance channel to maintain the internal equipment.

Arrange the evaporator assembly 3 directly above the condenser assembly 1, the condensed water in the evaporator assembly 3 can drip onto the condenser assembly 1 through the drain hole under the action of gravity, and the condensed water will be discharged outside the machine after absorbing heat, no need The drainage pipe is arranged, and the refrigerant is cooled on the condenser by condensed water, which improves the cooling efficiency.

The air inlets are arranged on both sides of the helicopter body, making full use of the openings of the landing gear. The condensed air enters from the fresh air inlet 9 on both sides of the helicopter body, and is discharged from the bottom of the body through the condenser assembly 1. The air resistance is small, which can effectively reduce the power consumption of the fan There is no need to arrange additional air ducts, which saves space and cost.

The compressor 2 is arranged above the hinge side of the condenser assembly nearby, and the refrigerant pipeline can be directly connected to the evaporator assembly 4, the compressor 3 and the condenser assembly 1, which can greatly shorten the refrigerant pipeline.

As shown in Figure 3, the heating assembly 10 shares the air distribution pipeline with the refrigeration device, and the evaporator housing 41 is a part of the air distribution pipeline. A plurality of evaporator core mounting brackets 43 are fixed inside the shell 41. The evaporator core 42 can enter from the mounting opening below the evaporator shell 41 and is fixed by the evaporator core mounting brackets 43. The refrigerant pipeline interface is arranged on The bottom of the evaporator shell 43 can realize quick installation and disassembly of the evaporator core.

In this paper, the principle and implementation of the patent of the present invention are described. It should be pointed out that without departing from the principle of the present invention, some improvements and modifications can be made to it, but these improvements and modifications also fall under the protection of the patent claims of the present invention. within range.

Claims (8)

1. An evaporative cycle refrigeration device integrated with a maintenance channel, characterized in that the outlet of the condenser assembly (1) is connected to the refrigerant inlet end of the evaporator assembly (4), and the refrigerant outlet end of the evaporator assembly (4) Connect with compressor (3) inlet end, compressor (3) outlet end and condenser assembly (1) inlet end; The inlet and outlet of described evaporator assembly (4) air end are respectively connected with the cockpit (6) The air return port (7) is connected with the air supply port (5), and it is characterized in that the condenser assembly (1) is arranged on the maintenance channel at the bottom of the equipment compartment through the hinge (2) as a maintenance hatch; the cockpit and the equipment compartment are connected through the The floor (8) divides. 2. The evaporative cycle refrigeration device integrated with the maintenance channel according to claim 1, characterized in that the compressor (3) is arranged near the hinge (2) side of the condenser assembly (1). 3. The evaporative cycle refrigeration device integrated with the maintenance channel according to claim 1, characterized in that, the drain port (44) of the evaporator assembly (4) is located above the condenser assembly (1). 4. The evaporative cycle refrigeration device integrated with the maintenance channel according to claim 1, characterized in that, fresh air inlets (9) are also provided on both sides of the equipment compartment; when working, external air flows from the fresh air inlets ( 9) enters and exits downwards through the condenser assembly (1). 5. The evaporative cycle refrigeration device integrated with the maintenance channel according to claim 3, characterized in that, the evaporator assembly (4) comprises an evaporator shell (41), an evaporator core (42), an evaporator core Bracket (43) and drain port (44), the evaporator core (42) is connected to the evaporator shell (41) through the evaporator core bracket (43), and the evaporator core can be quickly accessed from the bottom of the evaporator shell Disassembly; the water generated by the condensation of the evaporator core (42) flows out through the drain (44) at the bottom of the evaporator shell (41). 6. The evaporative cycle refrigeration device integrated with the maintenance passage according to claim 1, characterized in that it is integrally arranged in the equipment compartment below the cockpit floor (8). 7. The method of using the evaporative cycle refrigeration device integrated with the maintenance channel according to claim 3, characterized in that the condensed water discharged from the evaporator drain (44) flows to the condenser assembly (1) to realize heat dissipation. 8. The method of using the evaporative cycle refrigeration device integrated with the maintenance channel according to claim 4, characterized in that the condensed air flow enters from the fresh air inlets (9) on both sides of the equipment compartment and flows downward through the condenser assembly (1) discharge.

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