Circulating recovery system for aircraft de-icing fluid

Abstract

The application discloses a circulating recovery system for aircraft deicing fluid, which comprises a collecting unit, a conveying unit, a solid-liquid separation unit and a recovery unit. The collecting unit is used for collecting the solid-liquid mixture containing the deicing fluid after deicing of an aircraft; the conveying unit is used for conveying the solid-liquid mixture of the collecting unit; the solid-liquid separation unit receives the solid-liquid mixture of the conveying unit and carries out solid-liquid separation to obtain a solid mixture and a liquid mixture containing the deicing fluid; and the recovery unit recovers the liquid mixture containing the deicing fluid separated by the solid-liquid separation unit. The solid-liquid separation unit of the application flexibly controls the overturning degree of the switch partition plate by the rising and falling of the floating plate, thereby controlling the opening and closing of the feeding port, so that the supporting separation rod is cyclically and staggeredly moved at the separation hole of the flow guide separation cover plate, and then the solid mixture on the flow guide separation cover plate can be separated to the separation cavity.

Description

Technical Field

[0001] This invention belongs to the field of airport equipment technology, and specifically relates to a circulating recovery system for aircraft de-icing fluid. Background Technology

[0002] Under icing conditions, ice, snow, and frost directly impact aircraft operational safety. They roughen the aircraft's exterior surface, increase weight, restrict the range of motion of control surfaces, cause instrument errors, and in severe cases, increase stall speed and sudden abnormal pitch-up, significantly degrading flight performance. This is especially true during takeoff and climb, making flight attitude difficult to control and potentially leading to air disasters. Therefore, to ensure normal air transport and flight safety, it is essential to remove ice, frost, and snow from aircraft surfaces.

[0003] Liquid anti-icing is a physical anti-icing method. Its basic principle is to reduce the adhesion between ice and the aircraft surface or lower the freezing temperature of water on the aircraft's anti-icing surface by using de-icing fluid.

[0004] However, if the de-icing fluid is to be recycled and reused, the de-icing fluid at the de-icing site is mixed with ice fragments from the airport. Considering that the site is an open environment, impurities such as fallen leaves and gravel may also be mixed in.

[0005] Therefore, how to quickly separate the liquid mixture containing de-icing fluid from the on-site debris after aircraft de-icing has become an urgent problem to be solved in this field. Summary of the Invention

[0006] To address the technical problem of separation difficulties in the secondary utilization of aircraft de-icing fluid in existing technologies, a circulating recovery system for aircraft de-icing fluid is provided.

[0007] The system includes:

[0008] A collection unit for collecting the solid-liquid mixture containing de-icing fluid after aircraft de-icing;

[0009] A conveying unit for conveying the solid-liquid mixture from the collection unit;

[0010] A solid-liquid separation unit receives the solid-liquid mixture from the conveying unit and performs solid-liquid separation to obtain a solid mixture and a liquid mixture containing de-icing fluid;

[0011] The recovery unit recovers the liquid mixture containing de-icing fluid separated by the solid-liquid separation unit.

[0012] Furthermore, the solid-liquid separation unit is a separation box, which includes:

[0013] The feed inlet is located above or on the side of the upper end of the separator.

[0014] A pair of switch partitions, which can be flipped up and down, are installed inside the separation box to open or close the feed inlet;

[0015] A liquid storage tank is located inside the bottom of the separation box, and the outer wall of the liquid storage tank is kept at a certain distance from the inner wall of the sorting box;

[0016] The separation chamber is located between the outer wall of the liquid storage tank and the inner wall of the sorting box.

[0017] A separation device is disposed between the switch partition and the liquid storage tank, for separating the solid-liquid mixture from the conveying unit, guiding the separated liquid mixture containing de-icing fluid into the liquid storage tank, and introducing the solid mixture into the separation chamber.

[0018] Furthermore, the separation device includes:

[0019] A float plate is installed inside the liquid storage tank, which can float up and down.

[0020] Several support separation rods, one end of which is located on the float plate and the other end of which is located below the switch partition plate;

[0021] A flow-guiding and separation cover plate is placed over the floating plate and has several arc-shaped separation holes through which the supporting separation rod passes.

[0022] Furthermore, the separation box is a square box, and the liquid storage box is a square box or a platform-shaped box.

[0023] Furthermore, the bottom of the switch partition is provided with several strip-shaped grooves, which engage the other end of the support separation rod and allow the other end of the support separation rod to slide within the grooves.

[0024] Furthermore, the side of the separation box is provided with an openable and closable door, which communicates with the separation chamber.

[0025] Furthermore, the cabinet door is also equipped with a lock body for controlling its opening and closing.

[0026] Furthermore, a filter screen is also provided on the lower part of the side wall of the liquid storage tank.

[0027] Furthermore, the recycling unit is a recycling device, which includes:

[0028] A guide tube for guiding the liquid mixture containing de-icing fluid;

[0029] A recovery tank for receiving the liquid mixture containing the de-icing fluid;

[0030] A pressure valve is located between the guide pipe and the recovery tank.

[0031] Furthermore, the floating plate is characterized by having several openings.

[0032] The positive and progressive effects of this invention are as follows:

[0033] (1) The solid-liquid separation unit of the present invention quickly separates the solid-liquid mixture containing de-icing fluid and guides out the liquid mixture containing de-icing fluid that needs to be recovered. Furthermore, the separation device of the solid-liquid separation unit flexibly controls the feed rate through a float plate. Specifically, the degree of flipping of the switch partition is flexibly controlled by the rise and fall of the float plate, thereby controlling the opening and closing of the feed port. Furthermore, the rise and fall of the float plate drives the rise and fall of the support separation rod, thereby causing the support separation rod to move cyclically and alternately at the separation hole of the guide separation cover plate, thereby separating the solid mixture on the guide separation cover plate to the separation chamber, thus realizing the solid-liquid separation of the solid-liquid mixture containing de-icing fluid.

[0034] (2) The present invention further provides an openable door on the side of the separation box, which can periodically clean the separated solid mixture.

[0035] (3) The present invention further provides a filter screen on the side wall of the liquid storage tank, which can guide the liquid after the ice in the solid mixture in the separation chamber melts into the liquid storage tank, thus preventing the ice in the separation chamber from rising and causing blockage. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall system structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the overall structure of the separator box during feeding according to the present invention;

[0038] Figure 3 This is a schematic diagram of the overall structure of the separator of the present invention when feeding is stopped;

[0039] Figure 4 This is a schematic diagram of the overall structure of the float plate of the present invention;

[0040] Figure 5 This is a schematic diagram of the overall structure of the flow-guiding and separating cover plate of the present invention. Detailed Implementation

[0041] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0042] The circulating recovery system of the present invention is used to recover aircraft de-icing fluid. The system includes a collection unit, a conveying unit, a solid-liquid separation unit, and a recovery unit. The collection unit collects the solid-liquid mixture containing de-icing fluid after aircraft de-icing. The conveying unit conveys the solid-liquid mixture from the collection unit. The solid-liquid separation unit receives the solid-liquid mixture from the conveying unit and separates it into a solid mixture and a liquid mixture containing de-icing fluid. The recovery unit recovers the liquid mixture containing de-icing fluid separated by the solid-liquid separation unit.

[0043] The recovery system can be installed on the de-icing pad, de-icing vehicle, or other suitable de-icing equipment at the airport. Accordingly, the collection and conveying units can employ suitable devices from the prior art, as long as they can collect and convey the solid-liquid mixture containing de-icing fluid, which will not be elaborated here.

[0044] In one example, the solid-liquid separation unit uses a separation box 1, which includes a feed inlet 11, a pair of switch partitions 12, a liquid storage tank 13, a separation chamber 14, and a separation device 15.

[0045] The feed inlet 11 is located above or on the upper side of the separator 1 to introduce a solid-liquid mixture containing de-icing fluid into the separator 1. A pair of switch partitions 12 are rotatably disposed inside the separator 1 to open or close the feed inlet 11 for feeding and stopping feeding. The storage tank 13 is disposed in the bottom of the separator 1, preferably centrally located, with its outer wall maintaining a certain distance from the inner wall of the separator 1. The separation chamber 14 is disposed between the outer wall of the storage tank 13 and the inner wall of the separator 1 to receive solid mixtures, including crushed ice, fallen leaves, or other impurities. The separation device 15 is disposed between the switch partitions 12 and the storage tank 13 to separate the solid-liquid mixture from the conveying unit, guide the separated liquid mixture containing de-icing fluid into the storage tank 13, and introduce the solid mixture into the separation chamber 14.

[0046] It is worth noting that the maximum angle at which the switch partition 12 can be flipped upward is 0 degrees, at which point a pair of switch partitions are aligned to form a single plane.

[0047] Furthermore, in one example, the separation device 15 includes a float 151, a plurality of supporting separation rods 152, and a flow-guiding separation cover 153.

[0048] A float plate 151 is buoyantly positioned within the liquid storage tank 13, its shape conforming to the inner contour of the tank. It only needs to be able to float vertically within the tank. One end of a support separation rod 152 is attached to the float plate 151, and the other end is positioned below the switch partition 12. The support separation rod 152 causes the switch partition 12 to rotate vertically as the float plate 151 rises and falls. A flow-guiding separation cover plate 153 covers the float plate 152 and has several arc-shaped separation holes 1531 through which the support separation rod 152 passes. These holes intersect with the support separation rod 152 during its vertical movement, thereby guiding the solid mixture into the separation chamber 14. Preferably, the float plate 152 also has several openings.

[0049] Preferably, the separation tank 1 is a square tank, and the liquid storage tank 13 is a square tank or a platform-shaped tank. When the liquid storage tank 13 is a platform-shaped tank, its structure, which is narrow at the top and wide at the bottom, can hold the float 151 without the need for a separate holding mechanism.

[0050] Furthermore, in one example, (not shown) the bottom of the switch partition 12 is provided with several strip-shaped grooves, which hold the other end of the support separation rod 152 and allow the other end of the support separation rod to slide in the groove. The other end of the support separation rod 152 can preferably adopt a ball bearing structure to facilitate its sliding in the groove.

[0051] Furthermore, in one example, the side of the separation box 1 is provided with an openable and closable door 16, which communicates with the separation chamber 14. In addition, the door is also provided with a lock body 161 for controlling opening and closing.

[0052] Furthermore, in one example, a filter screen 131 is also provided on the lower part of the side wall of the liquid storage tank 13.

[0053] In one example, the recovery unit employs a recovery device comprising a guide pipe 21, a recovery tank 22, and a pressure valve 23. The guide pipe 21 guides the liquid mixture containing de-icing fluid. The recovery tank 22 receives the guided liquid mixture containing de-icing fluid. The pressure valve 23 is located between the guide pipe and the recovery tank and controls the opening and closing of the guide pipe.

[0054] Working principle: When the pressure valve 23 is closed, the liquid in the storage tank 13 gradually increases, and the solid mixture is guided to the guide separation cover plate 153. During this process, the float plate 151 rises until the separation support rod 152 drives the switch partition plate 12 to flip onto the same plane. At this time, the separation tank 1 is closed and separation stops. When the pressure valve 23 is opened, the liquid in the storage tank 13 is guided to the recovery tank 22. During this process, the float plate 151 descends, driving the separation support rod 152 and the separation hole 1531 to move alternately and guide the solid mixture to the separation chamber 14. The side of the separation chamber 14 is provided with a door 161 and a filter screen 131. The door 161 allows the staff to clean the solid mixture at regular intervals. The filter screen 131 can guide the liquid after the ice melts to the storage tank 13, realizing solid-liquid separation again and preventing blockage in the separation chamber.

[0055] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A circulating recovery system for aircraft de-icing fluid, characterized in that, The system includes: A collection unit for collecting the solid-liquid mixture containing de-icing fluid after aircraft de-icing; A conveying unit for conveying the solid-liquid mixture from the collection unit; A solid-liquid separation unit receives the solid-liquid mixture from the conveying unit and performs solid-liquid separation to obtain a solid mixture and a liquid mixture containing de-icing fluid; A recovery unit recovers the liquid mixture containing de-icing fluid separated by the solid-liquid separation unit; The solid-liquid separation unit is a separation tank, which includes: The feed inlet is located above or on the side of the upper end of the separation box; A pair of switch partitions, which can be flipped up and down, are installed inside the separation box to open or close the feed inlet; A liquid storage tank is located inside the bottom of the separation tank, and the outer wall of the liquid storage tank is kept at a certain distance from the inner wall of the separation tank; A separation chamber is located between the outer wall of the liquid storage tank and the inner wall of the separation chamber; A separation device is disposed between the switch partition and the liquid storage tank, used to separate the solid-liquid mixture from the conveying unit, guide the separated liquid mixture containing de-icing fluid into the liquid storage tank, and introduce the solid mixture into the separation chamber; The separation device includes: A float plate is installed inside the liquid storage tank, which can float up and down. Several support separation rods, one end of which is located on the float plate and the other end of which is located below the switch partition plate; A flow-guiding and separation cover plate is placed over the floating plate and has several arc-shaped separation holes through which the supporting separation rod passes.

2. The aircraft de-icing fluid recycling system as described in claim 1, characterized in that, The separation box is a square box, and the liquid storage box is a square box or a platform-shaped box.

3. The aircraft de-icing fluid recycling system as described in claim 2, characterized in that, The bottom of the switch partition is also provided with several strip-shaped grooves, which engage the other end of the support separation rod and allow the other end of the support separation rod to slide within the groove.

4. The aircraft de-icing fluid recycling system as described in claim 3, characterized in that, The separation box has an openable and closable door on its side, and the door communicates with the separation chamber.

5. The aircraft de-icing fluid recycling system as described in claim 4, characterized in that, The cabinet door is also equipped with a lock to control its opening and closing.

6. The circulating recovery system for aircraft de-icing fluid as described in claim 5, characterized in that, The lower part of the side wall of the liquid storage tank is also equipped with a filter screen.

7. The aircraft de-icing fluid recycling system as described in claim 6, characterized in that, The recycling unit is a recycling device, which includes: A guide tube for guiding the liquid mixture containing de-icing fluid; A recovery tank for receiving the liquid mixture containing the de-icing fluid; A pressure valve is located between the guide pipe and the recovery tank.

8. The circulating recovery system for aircraft de-icing fluid as described in claim 7, characterized in that, The float plate is also provided with several openings.

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