Evaporator suitable for evaporation circulation and air circulation combined system

Abstract

The invention belongs to the technical field of aircraft environment control systems, and discloses an evaporator suitable for an evaporation circulation and air circulation combined system, which comprises an air mixing cavity, an air circulation air supply port is arranged at the rear end of the air mixing cavity, an air supply nozzle is arranged at the front end of the air mixing cavity, and the bottom of the air mixing cavity is connected with an evaporator main body; evaporation circulation supplied air of the evaporator body and air circulation supplied air entering from the air circulation supply port are mixed in the air mixing cavity and then enter the aircraft cockpit from the air supply nozzle. The high-integration design is adopted, an air supply structure suitable for air circulation and evaporation circulation at the same time is achieved, and meanwhile the holes used for foot ventilation and the air adjustable nozzles used by pilots are integrated.

Description

Technical Field

[0001] This invention belongs to the field of aircraft environmental control system technology, and relates to an evaporator suitable for a combined evaporation cycle and air circulation system. Background Technology

[0002] Due to limitations in engine bleed airflow, some aircraft use a combined air circulation and evaporative circulation system to meet the ventilation and cooling needs of the cabin. The air circulation system primarily provides cabin ventilation and pressurization, while the evaporative circulation system provides cabin heating and cooling. To ensure cabin comfort, the cabin air distribution must maintain a consistent supply air temperature. However, since the temperature characteristics of the evaporative circulation supply air are inconsistent with those of the air circulation supply air, resolving this temperature inconsistency between the cabin air circulation provided by the evaporative circulation system and the air circulation system becomes a challenge in the cabin air distribution design when using a combined environmental control system. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides an evaporator suitable for a combined evaporation and air circulation system. By modifying the structure of the evaporator and simplifying the system design, the temperature difference between the evaporation and air circulation systems is eliminated.

[0004] The technical solution of the present invention is as follows: An evaporator suitable for a combined evaporation cycle and air circulation system includes an air mixing chamber, an air circulation supply port at the rear end of the air mixing chamber, an air supply nozzle at the front end of the air mixing chamber, and a bottom of the air mixing chamber connected to the evaporator body. The evaporation cycle air supplied by the evaporator body and the air circulation air supplied from the air circulation supply port are mixed in the air mixing chamber and then enter the aircraft cabin from the air supply nozzle.

[0005] Furthermore, the air mixing chamber is located above the aircraft cabin floor, while the evaporator body is located below the aircraft cabin floor.

[0006] Furthermore, the evaporator body includes an evaporator core and a fan. The evaporator core is vertically positioned at the lower front end of the air mixing chamber, and the fan is positioned at the lower inlet of the air mixing chamber. The lower inlet of the air mixing chamber is located in the lower middle and rear section of the air mixing chamber.

[0007] Furthermore, the evaporator body also includes a water collection tank, which is located at the bottom of the evaporator body.

[0008] Furthermore, the air mixing chamber is provided with vents on its side.

[0009] Furthermore, the air vents for the air mixing chamber are located inside the aircraft cockpit, next to the pilot's feet.

[0010] Furthermore, the air mixing chamber has vents on both sides and is located below the instrument panel, in the middle of the pilot's legs.

[0011] Furthermore, the air supply nozzle is equipped with an adjustment cover for air direction and opening degree.

[0012] The advantages of this invention are as follows: 1. This invention adopts a highly integrated design, realizing an air supply structure that is suitable for both air circulation and evaporation circulation, and also integrates openings for foot ventilation and adjustable nozzles for pilots.

[0013] 2. While achieving multiple functions, this invention saves system weight to the greatest extent, that is, the evaporator and the air circulation system share a single cavity and outlet, thereby reducing system weight and simplifying system design. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the evaporator structure of the combined evaporation cycle and air circulation system of the present invention.

[0016] Figure 2 This is a schematic diagram of the internal structure of the evaporator in the combined evaporation cycle and air circulation system of the present invention.

[0017] Figure 3 This is an installation diagram of the present invention.

[0018] Among them, 1—air supply nozzle, 2—air circulation air supply port, 3—water collection tank, 4—air mixing chamber, 5—fan, 6—evaporator core. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] The features and illustrative embodiments of various aspects of the present invention will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. The invention is by no means limited to any specific setups and methods set forth below, but covers any improvements, substitutions, and modifications to structures, methods, and devices without departing from the spirit of the invention. Well-known structures and techniques are not shown in the drawings and the following description to avoid unnecessarily obscuring the invention.

[0021] In the description of this invention, it should be noted that the directions or positional relationships indicated by terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing and simplifying the invention, and should not be construed as limiting the invention. Furthermore, the use of ordinal numbers (e.g., "first and second," etc.) is for distinguishing objects and is not limited to this order, and should not be construed as indicating or implying relative importance.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, encompassing both direct connection and indirect connection via an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0023] It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other, and the various embodiments can be referenced and cited in each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Example 1: An evaporator suitable for a combined evaporation cycle and air circulation system includes an air mixing chamber 4, an air circulation supply port 2 at the rear end of the air mixing chamber 4, an air supply nozzle 1 at the front end of the air mixing chamber 4, and the bottom of the air mixing chamber 4 is connected to the evaporator body. The evaporation cycle air supplied by the evaporator body and the air circulation air supplied from the air circulation supply port 2 are mixed in the air mixing chamber 4 and then enter the aircraft cabin from the air supply nozzle 1.

[0025] The air mixing chamber 4 is located above the aircraft cabin floor, and the evaporator body is located below the aircraft cabin floor.

[0026] The evaporator body includes an evaporator core 6 and a fan 5. The evaporator core 6 is vertically arranged at the lower front end of the air mixing chamber 4, and the fan 5 is located at the lower inlet of the air mixing chamber 4. The lower inlet of the air mixing chamber 4 is located in the lower middle and rear section of the air mixing chamber 4.

[0027] The evaporator body also includes a water collection tank 3, which is located at the bottom of the evaporator body.

[0028] The air mixing chamber 4 has a vent on its side.

[0029] The vent of the air mixing chamber 4 is located inside the aircraft cockpit next to the pilot's feet.

[0030] The air mixing chamber 4 has vents on both sides and is located below the instrument panel, in the middle of the pilot's legs.

[0031] The air supply nozzle 1 is equipped with an adjustment cover for air direction and opening degree.

[0032] Example 2: The present invention mainly consists of a water collection tank, an evaporator core, a fan, a mixing chamber, and an air supply nozzle.

[0033] This invention integrates a water collection tank, a mixing chamber connected to the air circulation supply, and an air supply nozzle with adjustable direction and opening on the basis of a traditional evaporator. It realizes the integrated design of the air circulation supply port and the evaporation circulation supply port. At the same time, through the structural design of the mixing wall, it can effectively prevent the problem of temperature difference between the evaporation circulation and the air circulation supply.

[0034] Specifically, it integrates an air circulation interface. By setting an air circulation supply port and a mixing chamber 4 at the rear end of the evaporator airflow, it mixes the evaporative circulation air supply and the air circulation air supply, preventing temperature differences that may occur between different systems. The mixing chamber 4, located at the rear end of the evaporator airflow, avoids the influence of the air circulation air supply on the evaporative circulation return air temperature. The mixing chamber integrates foot ventilation holes and adjustable air supply nozzles 1. The ventilation holes located in the middle of the pilot's legs below the instrument panel can realize foot ventilation function. The adjustable air supply nozzle blade opening is adjustable and can rotate along the axis, realizing the air supply direction adjustment at any angle, which can be used to adjust the direction and magnitude of the airflow to the pilot's face.

[0035] This invention achieves the following functions by integrating an air supply port connected to the air supply circulation pipeline and an air mixing chamber into a conventional evaporator: 1. The air recirculation supply (from the air recirculation system, mainly engine bleed air) is introduced into the evaporator through the air supply port and mixed with the evaporation recirculation supply (from the cabin recirculation, the gas cooled by the evaporator core) induced by the evaporation recirculation fan in the mixing chamber to eliminate the temperature difference between the evaporation recirculation supply and the air recirculation supply. 2. After the air supplied from the air circulation and evaporative circulation is fully mixed in the mixing chamber, ventilation holes are provided on both sides of the mixing chamber for ventilation of the pilot's feet.

[0036] 3. The evaporator is equipped with an adjustable air supply nozzle with adjustable opening and direction, which can be used to adjust the air volume and direction.

[0037] 4. A water collection tank is installed below the evaporator to collect the condensate inside the evaporator.

[0038] 5. By setting up a fan, convective heat transfer of the evaporator core is achieved, and it also serves as a pressure source for the airflow in the mixing chamber.

[0039] The above detailed embodiments are a description of the present invention. It should not be considered that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, several simple deductions and substitutions can be made without departing from the concept of the present invention, and all of these should be considered to fall within the protection scope of the present invention.

Claims

1. An evaporator suitable for a combined evaporation cycle and air circulation system, characterized in that, It includes an air mixing chamber (4), an air circulation supply port (2) at the rear end of the air mixing chamber (4), an air supply nozzle (1) at the front end of the air mixing chamber (4), and the bottom of the air mixing chamber (4) is connected to the evaporator body. The evaporation circulation supply of the evaporator body and the air circulation supply entering from the air circulation supply port (2) are mixed in the air mixing chamber (4) and then enter the aircraft cabin from the air supply nozzle (1).

2. An evaporator suitable for a combined evaporation cycle and air circulation system according to claim 1, characterized in that, The air mixing chamber (4) is located above the floor of the aircraft cabin, and the evaporator body is located below the floor of the aircraft cabin.

3. An evaporator suitable for a combined evaporation cycle and air circulation system according to claim 1, characterized in that, The evaporator body includes an evaporator core (6) and a fan (5). The evaporator core (6) is vertically located at the lower front end of the air mixing chamber (4), and the fan (5) is located at the lower inlet of the air mixing chamber (4). The lower inlet of the air mixing chamber (4) is located in the lower middle and rear section of the air mixing chamber (4).

4. An evaporator suitable for a combined evaporation cycle and air circulation system according to claim 1, characterized in that, The evaporator body also includes a water collection tank (3), which is located at the bottom of the evaporator body.

5. An evaporator suitable for a combined evaporation cycle and air circulation system according to claim 1, characterized in that, The air mixing chamber (4) has a vent on its side.

6. An evaporator suitable for a combined evaporation cycle and air circulation system according to claim 5, characterized in that, The air vent of the air mixing chamber (4) is located inside the aircraft cockpit next to the pilot's feet.

7. An evaporator suitable for a combined evaporation cycle and air circulation system according to claim 6, characterized in that, The air mixing chamber (4) has ventilation holes on both sides and is located in the middle of the pilot's legs below the instrument panel.

8. An evaporator suitable for a combined evaporation cycle and air circulation system according to claim 1, characterized in that, The air supply nozzle (1) is equipped with a cover for adjusting the air direction and opening.

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