阅读说明：本技术 一种机载蒸发器冷凝水自动排放装置 (Automatic condensate water discharging device of airborne evaporator ) 是由 郭豪凯 杨冰洁 王沨莉 张洋 汪智慧 王振东 李媛媛 张爱民 姚英丽 张雪平 于 2020-10-30 设计创作，主要内容包括：本发明涉及机载蒸发循环制冷技术领域,具体涉及一种机载蒸发器冷凝水自动排放装置。包括蒸发器壳体、蒸发风机、通气管、排水管和阀体；阀体内腔形成三通结构,且阀体内腔中可转动的设置有阀板；当蒸发风机形成抽气负压时,所述阀板封闭通气管的下端和排水管的下端；当蒸发风机不工作时,所述阀板处于自由转动状态。采用本发明的装置,不消耗电能,不增加机上的安装空间,能够实现机载蒸发器冷凝水的自动排放,保证冷凝水在负压环境下顺利排出蒸发器,减少蒸发器内负压对冷凝水排放造成的影响,提升蒸发器的功能性能,同时避免冷凝水因排放不畅进入机舱影响机上其他设备的安全,增加机舱乘员的舒适性。(The invention relates to the technical field of airborne evaporation circulation refrigeration, in particular to an airborne evaporator condensate water automatic discharge device. Comprises an evaporator shell, an evaporation fan, a vent pipe, a drain pipe and a valve body; the inner cavity of the valve body forms a three-way structure, and a valve plate is rotatably arranged in the inner cavity of the valve body; when the evaporation fan forms air exhaust negative pressure, the valve plate seals the lower end of the vent pipe and the lower end of the drain pipe; when the evaporation fan does not work, the valve plate is in a free rotation state. By adopting the device, the device does not consume electric energy, does not increase the installation space on the machine, can realize the automatic discharge of the condensed water of the airborne evaporator, ensures that the condensed water is smoothly discharged out of the evaporator under the negative pressure environment, reduces the influence of the negative pressure in the evaporator on the discharge of the condensed water, improves the functional performance of the evaporator, simultaneously avoids the condensed water from entering the cabin due to the unsmooth discharge to influence the safety of other equipment on the machine, and increases the comfort of passengers in the cabin.)

1. An automatic condensate water discharge device of an onboard evaporator comprises an evaporator shell, an evaporation fan, a vent pipe, a drain pipe and a valve body;

the evaporation fan is arranged in the evaporator shell, and a negative pressure area can be formed during air draft; the lower part of the negative pressure device is provided with a water storage tank 8;

the upper end of the vent pipe penetrates into the evaporator shell, and the upper end of the vent pipe is positioned in a negative pressure area;

the water storage tank is provided with a water drainage hole, the upper end of the water drainage pipe is communicated with the water drainage hole, and the water drainage hole is positioned in the negative pressure area;

the valve body is provided with two upper pipe orifices and a lower pipe orifice, the two upper pipe orifices and the inner cavity of the lower pipe orifice communicating valve body form a three-way structure, and a valve plate is rotatably arranged in the inner cavity of the valve body; the lower end of the breather pipe and the lower end of the drain pipe are respectively communicated with two upper pipe orifices, and the lower pipe orifice is used as a water outlet;

when the evaporation fan forms air exhaust negative pressure, the valve plate seals the lower end of the vent pipe and the lower end of the drain pipe; when the evaporation fan does not work, the valve plate is in a free rotation state.

2. The automatic condensate drain device for the onboard evaporator according to claim 1, wherein: an O-shaped sealing ring is arranged between the upper pipe orifice of the valve body and the vent pipe 3.

3. The automatic condensate drain device for the onboard evaporator according to claim 1, wherein: an O-shaped sealing ring is arranged between the upper pipe orifice of the valve body and the water discharge pipe 4.

4. The automatic condensate drain device for the onboard evaporator according to claim 1, wherein: the valve body comprises a left valve body and a right valve body, and the left valve body is connected with the right valve body through a screw, an elastic washer and a flat washer.

5. The automatic condensate drain device for the onboard evaporator according to claim 1, wherein: the two upper pipe orifices are positioned on the left valve body.

6. The automatic condensate drain device for the onboard evaporator according to claim 1, wherein: the lower pipe orifice is positioned on the right valve body.

7. The automatic condensate drain device for the onboard evaporator according to claim 1, wherein: the valve plate is rotationally connected with the valve body through a rotating shaft, and the rotating shaft is horizontally arranged.

8. The automatic condensate drain device for the onboard evaporator according to claim 1, wherein: the valve body with the contact surface between the valve plate can guarantee to form sealedly after the laminating. So that the valve plate can seal the lower end of the breather pipe and the lower end of the drain pipe.

9. The automatic condensate drain device for the onboard evaporator according to claim 1, wherein: after the valve plate is attached to the valve body, the included angle between the valve plate and the horizontal plane passing through the rotating shaft is larger than 80 degrees.

10. The automatic condensate drain device for the onboard evaporator according to claim 1, wherein: the upper end of the breather pipe is higher than the highest water level of the reservoir.

Technical Field

The invention relates to the technical field of airborne evaporation circulation refrigeration, in particular to an airborne evaporator condensate water automatic discharge device.

Background

The evaporator is one of four essential parts of the airborne evaporation circulation refrigeration system, adopts the evaporation type refrigeration cycle technology, and evaporates in the evaporator core body through the refrigerant, so that the air passing through the evaporator is cooled, and the low-temperature air is sent to the engine room by utilizing the evaporation fan, thereby achieving the purpose of refrigeration. In order to reduce the temperature and humidity of air in the engine room, the evaporator must have enough refrigeration and dehumidification capacity, and because the pressure difference between the front and the back of the evaporator core is large, a negative pressure cavity is formed in an air duct from the back of the evaporator core to the air blower, so that condensed water cannot enter the drain pipe in time and is discharged automatically.

The influence of the abnormal discharge of the condensed water is mainly embodied in two aspects: firstly, a part of condensed water is taken away by a fan, so that the air supply of the fan is easy to bring water; secondly, the condensed water accumulated in the shell of the evaporator weakens the heat exchange capability of the evaporator or causes potential safety hazards to other electric parts on the motor through a gap flow channel cabin such as an air return port and the like. For a refrigeration system, common methods of discharging condensed water are: the gravity flow method, the water seal method and the mechanical lifting method, but because space limitation and power shortage exist on the aircraft, the size of the evaporator cannot be too large, and the traditional method cannot effectively solve the problem that condensed water of the evaporator on the aircraft is difficult to drain in a negative pressure environment.

Disclosure of Invention

The purpose of the invention is as follows: aiming at the problems, the automatic condensed water discharging device for the airborne evaporator is designed, and the technical problem that the airborne evaporator is difficult to discharge condensed water in the negative pressure environment generated by an evaporation fan in the airborne evaporator is solved.

Technical scheme

The method provided by the invention utilizes a one-way valve structure, overcomes the negative pressure in the evaporator through the one-way valve, is beneficial to the condensed water to enter a drain pipe, and utilizes the gravity of the condensed water to open the one-way valve to realize automatic drainage.

The automatic condensate water discharging device of the airborne evaporator comprises an evaporator shell 1, an evaporation fan 2, a vent pipe 3, a drain pipe 4 and a valve body 5;

the evaporation fan is arranged in the evaporator shell, and a negative pressure area 7 can be formed during air draft; the lower part of the negative pressure device is provided with a water storage tank 8;

the upper end of the vent pipe penetrates into the evaporator shell, and the upper end of the vent pipe is positioned in a negative pressure area;

the water storage tank is provided with a water drainage hole 6, the upper end of the water drainage pipe is communicated with the water drainage hole, and the water drainage hole is positioned in the negative pressure area;

the valve body is provided with two upper pipe orifices and a lower pipe orifice, the two upper pipe orifices and the inner cavity of the lower pipe orifice communicating valve body form a three-way structure, and a valve plate 9 is rotatably arranged in the inner cavity of the valve body; the lower end of the breather pipe and the lower end of the drain pipe are respectively communicated with two upper pipe orifices, and the lower pipe orifice is used as a water outlet;

when the evaporation fan forms air exhaust negative pressure, the valve plate seals the lower end of the vent pipe and the lower end of the drain pipe; when the evaporation fan does not work, the valve plate is in a free rotation state.

Further, an O-shaped sealing ring is arranged between the upper pipe orifice of the valve body and the vent pipe 3.

Further, an O-shaped sealing ring is arranged between the upper pipe orifice of the valve body and the water discharge pipe 4.

Furthermore, the valve body comprises a left valve body and a right valve body, and the left valve body and the right valve body are connected through a screw, an elastic gasket and a flat gasket.

Further, the two upper pipe orifices are positioned on the left valve body.

Further, the lower nozzle is positioned on the right valve body.

Further, the valve plate is connected with the valve body through a rotating shaft in a rotating mode, and the rotating shaft is arranged horizontally.

Further, the valve body with the contact surface between the valve plate can guarantee to form sealedly after the laminating. So that the valve plate can seal the lower end of the breather pipe and the lower end of the drain pipe.

Further, after the valve plate is attached to the valve body, the included angle between the valve plate and the horizontal plane passing through the rotating shaft is larger than 80 degrees. The valve can be tightly attached to the end face of the water outlet of the left valve body by the weight of the valve, so that air can be prevented from entering the evaporator.

Further, the upper end of the breather pipe is higher than the highest water level of the reservoir.

The working principle is as follows:

the automatic discharging equipment of machine-carried evaporimeter comdenstion water, when the operation of evaporating fan, form the negative pressure district in the evaporimeter casing, under the effect of negative pressure, the lower extreme of breather pipe and the lower extreme of drain pipe are sealed to the valve plate, all are in the negative pressure district from the valve plate process breather pipe, drain pipe to the evaporimeter casing this moment, the comdenstion water that the evaporimeter during operation produced collects back in the tank department gets into the drain pipe under its self action of gravity, in the air in the drain pipe got into the evaporimeter casing along the blast pipe, the effect of blast pipe is the air in the evacuation drain pipe, does benefit to the comdenstion water. When the gravity generated by the condensed water accumulated in front of the valve plate is greater than the negative pressure generated by the evaporation fan in the evaporator shell, the valve plate rotates rightwards to open, the condensed water is discharged from the water outlet of the valve body, and when the weight generated by the condensed water accumulated in front of the valve plate is less than the negative pressure generated by the evaporation fan in the evaporator shell, the valve plate of the valve body rotates leftwards to close, so that the circulation is realized.

Referring to fig. 1, when the evaporator is in a working state, an air channel from the core of the evaporator to the air feeder forms a negative pressure cavity under the action of the evaporation fan, part of outside air enters an inner cavity of the evaporator through a drain pipe under the action of negative pressure, an upward airflow is formed at the position of a drain pipe opening at the bottom of the evaporator, condensed water is prevented from entering the drain pipe, the condensed water is accumulated at the bottom of the evaporator, the liquid level is increased, the outside air continuously enters the evaporator through the drain pipe under the action of the evaporation fan, a large number of bubbles are generated around a drain outlet at the bottom of the evaporator, internal electric devices are damaged or the condensed water flows out of the evaporator through other positions, and the. Until the gravity generated by the liquid level height in the evaporator is larger than the internal negative pressure, the condensed water can not enter the drain pipe to be discharged.

Referring to fig. 5a and 5b, when the evaporator is in a working state, the evaporation fan operates, a negative pressure area is formed in the inner cavity of the evaporator, under the action of negative pressure, airflow enters the evaporator from the drain pipe through the automatic condensate discharging device of the airborne evaporator provided by the invention, the valve plate of the automatic condensate discharging device of the airborne evaporator is pushed by atmospheric pressure to rotate around the rotary shaft and is attached to the end face of the water outlet of the left valve body, outside air is prevented from entering the evaporator under the action of negative pressure, an isobaric area is formed from the valve plate to the inside of the evaporator, the condensate is not influenced by the airflow generated by the negative pressure in the drain pipe, enters the drain pipe under the action of self gravity, and is accumulated in front of the valve plate of the automatic condensate discharging device of the airborne evaporator.

Referring to fig. 6a and 6b, when the evaporator is in a working state, when the condensed water is not affected by negative pressure, the condensed water enters the drain pipe in time under the action of self gravity, in the descending process, the air in the drain pipe is discharged along the vent pipe orifice of the left valve body, the condensed water is gathered at the front end of the valve plate of the automatic condensed water discharging device of the airborne evaporator, and when the gravity generated by the height of the liquid column (which is determined by the negative pressure of the inner cavity of the evaporator) of the airborne evaporator is greater than the negative pressure generated by the evaporation fan, the condensed water in the drain pipe pushes the valve plate to rotate rightwards around the rotary shaft to be opened, and the condensed water is discharged through the vent pipe orifice of.

Referring to fig. 7a to 7c, it can be known that the condensed water in the evaporator after the application of the present invention mainly exists in the drain pipe at the front end of the condensed water automatic discharge device of the airborne evaporator provided by the present invention, so that the phenomenon of a large amount of water accumulation in the evaporator is reduced.

Advantageous effects

By adopting the device, the device does not consume electric energy, does not increase the installation space on the machine, can realize the automatic discharge of the condensed water of the airborne evaporator, ensures that the condensed water is smoothly discharged out of the evaporator under the negative pressure environment, reduces the influence of the negative pressure in the evaporator on the discharge of the condensed water, improves the functional performance of the evaporator, simultaneously avoids the condensed water from entering the cabin due to the unsmooth discharge to influence the safety of other equipment on the machine, and increases the comfort of passengers in the cabin.

Drawings

Fig. 1 is a sectional view of a structure of the prior art.

Fig. 2 is a structural view of the valve body of the present invention.

Fig. 3 is a cross-sectional view of the valve body of the present invention.

Fig. 4 is an exploded illustration of the valve body of the present invention.

Fig. 5a is a structural cross-sectional view of the present invention.

Fig. 5b is a partial enlarged view of fig. 5 a.

Fig. 6a is a working schematic diagram (water storage state and valve plate closed state) of the invention.

Fig. 6b is a partial enlargement of fig. 6 a.

Figure 7a schematic of the operation of the prior art (water level increase).

FIG. 7b is a schematic view of the operation of the present invention (drainage state, valve plate open state);

fig. 7c is a partial enlargement of fig. 7 b.

Fig. 8 is a schematic view of the installation of the present invention.

Wherein: the aircraft comprises an evaporator shell, an evaporation fan, a vent pipe, a drain pipe, a valve body, a water outlet, a negative pressure area, a water storage tank, a valve plate, a cabin drain pipe nozzle and an aircraft skin, wherein the evaporator shell is arranged at 1 part, the evaporation fan is arranged at 2 part, the vent pipe is arranged at 3 part, the drain pipe is arranged at 4 part, the valve body is arranged at 5 part, the water outlet is arranged at 6.

Detailed Description

Embodiment 1, referring to fig. 1,2,5-8, provides an automatic condensate drainage device for an onboard evaporator, which includes an evaporator shell 1, an evaporation fan 2, a vent pipe 3, a drain pipe 4 and a valve body 5;

the evaporation fan is arranged in the evaporator shell, and a negative pressure area 7 can be formed during air draft; the lower part of the negative pressure device is provided with a water storage tank 8;

the upper end of the vent pipe penetrates into the evaporator shell, and the upper end of the vent pipe is positioned in a negative pressure area;

the water storage tank is provided with a water drainage hole 6, the upper end of the water drainage pipe is communicated with the water drainage hole, and the water drainage hole is positioned in the negative pressure area;

the valve body is provided with two upper pipe orifices and a lower pipe orifice, the two upper pipe orifices and the inner cavity of the lower pipe orifice communicating valve body form a three-way structure, and a valve plate 9 is rotatably arranged in the inner cavity of the valve body; the lower end of the breather pipe and the lower end of the drain pipe are respectively communicated with two upper pipe orifices, and the lower pipe orifice is used as a water outlet;

when the evaporation fan forms air exhaust negative pressure, the valve plate seals the lower end of the vent pipe and the lower end of the drain pipe; when the evaporation fan does not work, the valve plate is in a free rotation state.

The valve plate is rotationally connected with the valve body through a rotating shaft, and the rotating shaft is horizontally arranged.

The valve body with the contact surface between the valve plate can guarantee to form sealedly after the laminating. So that the valve plate can seal the lower end of the breather pipe and the lower end of the drain pipe.

After the valve plate is attached to the valve body, the included angle between the valve plate and the horizontal plane passing through the rotating shaft is larger than 80 degrees. The valve can be tightly attached to the end face of the water outlet of the left valve body by the weight of the valve, so that air can be prevented from entering the evaporator.

The upper end of the breather pipe is higher than the highest water level of the reservoir.

Embodiment 2, referring to fig. 1 to 8, provides an automatic condensate discharge device for an onboard evaporator, which includes an evaporator housing 1, an evaporation fan 2, a vent pipe 3, a drain pipe 4 and a valve body 5;

the evaporation fan is arranged in the evaporator shell, and a negative pressure area 7 can be formed during air draft; the lower part of the negative pressure device is provided with a water storage tank 8;

the upper end of the vent pipe penetrates into the evaporator shell, and the upper end of the vent pipe is positioned in a negative pressure area;

the water storage tank is provided with a water drainage hole 6, the upper end of the water drainage pipe is communicated with the water drainage hole, and the water drainage hole is positioned in the negative pressure area;

the valve body is provided with two upper pipe orifices and a lower pipe orifice, the two upper pipe orifices and the inner cavity of the lower pipe orifice communicating valve body form a three-way structure, and a valve plate 9 is rotatably arranged in the inner cavity of the valve body; the lower end of the breather pipe and the lower end of the drain pipe are respectively communicated with two upper pipe orifices, and the lower pipe orifice is used as a water outlet;

when the evaporation fan forms air exhaust negative pressure, the valve plate seals the lower end of the vent pipe and the lower end of the drain pipe; when the evaporation fan does not work, the valve plate is in a free rotation state.

An O-shaped sealing ring is arranged between the upper pipe orifice of the valve body and the vent pipe 3.

An O-shaped sealing ring is arranged between the upper pipe orifice of the valve body and the water discharge pipe 4.

The valve body comprises a left valve body and a right valve body, and the left valve body is connected with the right valve body through a screw, an elastic washer and a flat washer.

The two upper pipe orifices are positioned on the left valve body.

The lower pipe orifice is positioned on the right valve body.

The valve plate is rotationally connected with the valve body through a rotating shaft, and the rotating shaft is horizontally arranged.

The valve body with the contact surface between the valve plate can guarantee to form sealedly after the laminating. So that the valve plate can seal the lower end of the breather pipe and the lower end of the drain pipe.

After the valve plate is attached to the valve body, the included angle between the valve plate and the horizontal plane passing through the rotating shaft is larger than 80 degrees. The valve can be tightly attached to the end face of the water outlet of the left valve body by the weight of the valve, so that air can be prevented from entering the evaporator.

The upper end of the breather pipe is higher than the highest water level of the reservoir.