Regenerative device of air separator

Abstract

A heat regeneration device of an air separator includes: an air separator that separates introduced air into an oxygen-rich gas and a nitrogen-rich gas; and the wrapping layer wraps the periphery of the air separator, and a heat return channel allowing the oxygen-enriched gas to pass through is formed between the wrapping layer and the air separator.

Description

TECHNICAL FIELD

[0001] The utility model relates to a regenerative device of air separator, especially to a regenerative device of air separator for inerting system of airplane. BACKGROUND

[0002] In the past, in order to prevent the accidental ignition explosion of the fuel system of airplane, the inerting system for inerting the fuel system is provided. The inerting system usually includes four systems of bleed air pretreatment system, air separator, inerting distribution system and venting system, and the higher the bleed air temperature is, the better the air separation performance of the air separator is within the temperature range, so the preheating is needed before the air separator works.

[0003] Although the heat preservation layer is arranged on the periphery of the current air separator, the heat preservation layer can only realize the heat preservation of the air separator, and cannot play the role of heating the air separator. Therefore, a long time is needed for preheating before the air separator works.

[0004] If the component for preheating is additionally arranged on the periphery of the air separator, the structure of the inerting system will become complex, resulting in large size. CONTENT OF UTILITY MODEL

[0005] The utility model is completed in view of the above technical problem, and the purpose is to provide a regenerative device of air separator, which can quickly preheat the air separator and avoid the complex structure and large size of the inerting system.

[0006] In order to achieve the above purpose, the first aspect of the utility model provides a regenerative device of air separator, which comprises: an air separator, which separates the air introduced into the air separator into oxygen-rich gas and nitrogen-rich gas; and a wrapping layer, which wraps the periphery of the air separator, and a regenerative channel for the oxygen-rich gas to pass through is formed between the wrapping layer and the air separator.

[0007] According to the above structure, since the regenerative channel for the oxygen-rich gas to pass through is formed between the wrapping layer and the air separator, the heat in the oxygen-rich gas can be recovered by the regenerative channel to heat the air separator, so that the preheating can be quickly performed when the air separator is started, and the heating can be simultaneously performed when the air separator works to keep it within the temperature range.

[0008] The regenerative device of air separator of the second aspect of the utility model is based on the regenerative device of air separator of the first aspect of the utility model, the regenerative channel is formed throughout the whole periphery of the air separator, and comprises an oxygen-rich gas inlet for introducing the oxygen-rich gas from the air separator and an oxygen-rich gas outlet for discharging the oxygen-rich gas.

[0009] According to the above structure, the regenerative passage is formed throughout the whole circumference of the air separator, including the oxygen-enriched gas inlet for introducing the oxygen-enriched gas from the air separator and the oxygen-enriched gas outlet for discharging the oxygen-enriched gas, so that the heat in the oxygen-enriched gas separated from the air separator can be recovered to the maximum extent.

[0010] The regenerative device of the air separator of the third aspect of the present application is based on the regenerative device of the air separator of the first aspect or the second aspect of the present application, wherein the oxygen-enriched gas inlet is formed in the air separator, and the oxygen-enriched gas outlet is formed in the wrapping layer.

[0011] According to the above structure, the oxygen-enriched gas inlet is formed in the air separator, and the oxygen-enriched gas outlet is formed in the wrapping layer, so that the oxygen-enriched gas in the air separator can be discharged to the outside of the machine through the wrapping layer.

[0012] The regenerative device of the air separator of the fourth aspect of the present application is based on the regenerative device of the air separator of the first aspect or the second aspect of the present application, wherein the wrapping layer is made of a hard material, and the regenerative passage is surrounded by the inner surface of the wrapping layer and the outer surface of the air separator.

[0013] According to the above structure, the wrapping layer is made of a hard material, and the regenerative passage is surrounded by the inner surface of the wrapping layer and the outer surface of the air separator, so that the air separator can be used as part of the regenerative passage, and thus there is no need to additionally provide components to form the regenerative passage. In this way, the number of components can be reduced to avoid the overall device from being large.

[0014] The regenerative device of the air separator of the fifth aspect of the present application is based on the regenerative device of the air separator of the first aspect or the second aspect of the present application, wherein the wrapping layer is made of a flexible material, a rib made of a hard material is arranged on the inner side of the wrapping layer, and the regenerative passage is surrounded by the inner surface of the wrapping layer, the outer surface of the rib, and the outer surface of the air separator.

[0015] According to the above structure, the wrapping layer is made of a flexible material, the rib made of a hard material is arranged on the inner side of the wrapping layer, and the regenerative passage is surrounded by the inner surface of the wrapping layer, the outer surface of the rib, and the outer surface of the air separator, so that the rib can be arranged in the space inside the wrapping layer, and there is no need to arrange the rib on the outer surface of the wrapping layer. Therefore, the thickness of the regenerative device of the air separator can be reduced to avoid the overall device from being large.

[0016] The regenerative device of the air separator of the sixth aspect of the present application is formed so that the ribs extend over the entire circumference of the air separator, based on the regenerative device of the air separator of the fifth aspect of the present application.

[0017] According to the above structure, since the ribs extend over the entire circumference of the air separator, the regenerative passage for guiding the flow of the oxygen-rich gas can be reliably formed.

[0018] The regenerative device of the air separator of the seventh aspect of the present application is formed so that the ribs extend over two-thirds of the entire circumference of the air separator, based on the regenerative device of the air separator of the fifth aspect of the present application.

[0019] According to the above structure, since the ribs extend over two-thirds of the entire circumference of the air separator, the flow of the oxygen-rich gas in the regenerative passage can be made smoother.

[0020] The regenerative device of the air separator of the eighth aspect of the present application is provided with a temperature measuring device for measuring the temperature of the air separator, based on the regenerative device of the air separator of the first or second aspect of the present application.

[0021] According to the above structure, since the temperature measuring device for measuring the temperature of the air separator is further provided, the temperature of the air separator can be measured in real time so as to be kept within the tolerance temperature range.

[0022] The regenerative device of the air separator of the ninth aspect of the present application further includes a nitrogen-rich gas discharge passage for the flow of the nitrogen-rich gas separated from the air, the nitrogen-rich gas discharge passage being independently provided with respect to the regenerative passage, and the nitrogen-rich gas discharge passage being connected to the fuel system, based on the regenerative device of the air separator of the first or second aspect of the present application.

[0023] According to the above structure, since the regenerative device of the air separator further includes the nitrogen-rich gas discharge passage for the flow of the nitrogen-rich gas separated from the air, the nitrogen-rich gas discharge passage being independently provided with respect to the regenerative passage, and the nitrogen-rich gas discharge passage being connected to the fuel system, the fuel system can be inerted by the nitrogen-rich gas.

[0024] (Technical effects of the present application)

[0025] According to the above structure, since the regenerative passage for the oxygen-enriched gas is formed between the wrapping layer and the air separator, the heat in the oxygen-enriched gas can be recovered by the regenerative passage to heat the air separator, so that the preheating can be quickly performed when the air separator is started, and the heating can be simultaneously performed to keep the air separator in the tolerance temperature range when the air separator is working. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical schemes in the various embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings described in the following are only some of the embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0027] Figure 1 is a sectional view showing the schematic structure of the regenerative device of the air separator according to the first embodiment of the present application.

[0028] Figure 2 is a schematic view showing the detailed structure of the regenerative device of the air separator according to the first embodiment of the present application.

[0029] Figure 3 is a schematic view showing the schematic structure of the regenerative device of the air separator according to the second embodiment of the present application.

[0030] Figure 4 is a schematic view showing the arrangement form of the rib material of the outer surface of the separator in the regenerative device of the air separator according to the second embodiment of the present application.

[0031] Figure 5 is a schematic view showing the flow path of the gas flow in the oxygen-enriched gas regenerative passage in the regenerative device of the air separator according to the second embodiment of the present application.

[0032] Figure 6 is a schematic view showing the arrangement form of the rib material of the outer surface of the separator in the regenerative device of the air separator according to the third embodiment of the present application.

[0033] Figure 7 is a schematic view showing the flow path of the gas flow in the oxygen-enriched gas regenerative passage in the regenerative device of the air separator according to the third embodiment of the present application.

[0034] (SYMBOL DESCRIPTION)

[0035] 1, 1A regenerative device of an air separator;

[0036] 2 wrapping layer;

[0037] 3 air separator;

[0038] 31 filter element;

[0039] 4 air intake duct;

[0040] 5 oxygen-rich gas recuperation passage;

[0041] 51 oxygen-rich gas intake port;

[0042] 52 oxygen-rich gas discharge port;

[0043] 5A oxygen-rich gas recuperation passage;

[0044] 51A oxygen-rich gas intake port;

[0045] 52A oxygen-rich gas discharge port;

[0046] 53A rib;

[0047] 5B oxygen-rich gas recuperation passage;

[0048] 51B oxygen-rich gas intake port;

[0049] 52B oxygen-rich gas discharge port;

[0050] 53B rib;

[0051] 6 nitrogen-rich gas discharge passage;

[0052] 7 fuel system;

[0053] 8 off-board; DETAILED DESCRIPTION

[0054] Hereinafter, referring to Figures 1 to 7 Each embodiment of the recuperator of the air separator of the present application will be described. Figure 1 is a sectional view showing the outline structure of the recuperator of the air separator of the first embodiment of the present application. Figure 2 is a schematic view showing the detailed structure of the recuperator of the air separator of the first embodiment of the present application. Figure 3 is a schematic view showing the outline structure of the recuperator of the air separator of the second embodiment of the present application. Figure 4 is a schematic view showing the arrangement form of the rib on the outer surface of the separator in the recuperator of the air separator of the second embodiment of the present application. Figure 5 is a schematic view showing the flow path of the gas flow in the oxygen-rich gas recuperation passage in the recuperator of the air separator of the second embodiment of the present application. Figure 6 is a schematic view showing the arrangement form of the rib on the outer surface of the separator in the recuperator of the air separator of the third embodiment of the present application. Figure 7is a schematic view showing a flow path of air flow in the oxygen-enriched gas heat recovery passage in the air separator of the third embodiment of the present application.

[0055] (First Embodiment)

[0056] (Heat Recovery Device 1 of Air Separator)

[0057] As shown in Figure 1 , 2 , the heat recovery device 1 of the air separator of the present embodiment mainly comprises an air separator (also referred to as "ASM") 3, a wrapping layer 2 wrapping the outer periphery of the air separator 3, and an oxygen-enriched gas heat recovery passage 5 constituted by the outer surface of the air separator 3 and the inner surface of the wrapping layer 2.

[0058] The air separator 3 has a complex structure, and here only a plurality of filter cartridges 31 arranged are shown simply as shown in Figure 1 .

[0059] As shown in Figure 2 , an air inlet duct 4 for air to enter is formed at the left end of the air separator 3, an oxygen-enriched gas discharge passage 6 for oxygen-enriched gas separated out by the air separator 3 to be discharged is formed at the right end of the air separator 3, and an oxygen-enriched gas discharge port 52 for oxygen-enriched gas separated out by the air separator 3 to be discharged is formed at the lower side of the air separator 3.

[0060] In the present embodiment, the wrapping layer 2 is made of, for example, stainless steel material, and has a certain rigidity. The oxygen-enriched gas heat recovery passage 5 for oxygen-enriched gas separated out by the air separator 3 to flow and recover heat is enclosed between the inner surface of the wrapping layer 2 and the outer surface of the air separator 3. The oxygen-enriched gas enters the oxygen-enriched gas heat recovery passage 5 from the oxygen-enriched gas inlet port 51, and flows as shown by the arrows throughout the entire periphery of the air separator 3, and is discharged to the outside 8 from the oxygen-enriched gas discharge port 52.

[0061] In addition, the oxygen-enriched gas discharge passage 6 is also provided extending at the right end of the air separator 3, and the oxygen-enriched gas discharge passage 6 is connected with the fuel system 7. In this way, the oxygen-enriched gas separated out by the air separator 3 is discharged to the fuel system 7 via the oxygen-enriched gas discharge passage 6, and the fuel system 7 is inerted, so that the fuel system 7 can be prevented from igniting explosion.

[0062] In addition, although not shown, in the present embodiment, in order to be able to measure the temperature of the air separator in real time so as to keep it within the tolerance temperature range, a temperature measuring device is also provided, which measures the temperature of the air separator.

[0063] (Technical Effects of First Embodiment)

[0064] According to the heat recovery device 1 of the air separator configured as described above, the heat dissipation of the air separator 3 can be suppressed by wrapping the outer periphery of the air separator 3 with the wrapping layer 2, as in the past.

[0065] Furthermore, the heat from the oxygen-enriched gas flowing through the oxygen-enriched gas reheating channel 5 is recovered to preheat the internal air separator 3. This allows for heating of the air separator 3 while it is operating, rapid preheating upon startup, and easy maintenance of it within its operating temperature range. Moreover, since a portion of the oxygen-enriched gas reheating channel 5 is directly formed from the outer surface of the air separator 3 and is tightly connected to it, the heat from the oxygen-enriched gas reheating channel 5 is rapidly transferred to the air separator 3.

[0066] Furthermore, no other components for forming the oxygen-enriched gas reheating channel 5 are provided between the wrapping layer 2 and the air separator 3. Therefore, the thickness of the wrapping layer will not increase, the structure of the inerting system will not become complicated, and the size of the system can be avoided.

[0067] (Second Implementation)

[0068] Above, refer to Figures 1 to 2 The regeneration device 1 of the air separator in the first embodiment has been described. Hereinafter, refer to... Figures 3 to 5 The regeneration device 1A of the air separator in the second embodiment will be described.

[0069] In this embodiment, in addition to Figure 3 The shown wrapping layer 2 is made of, for example, leather, and rigid ribs 53A are provided on the outer surface of the air separator 3. The oxygen-enriched gas reheating channel 5A is surrounded by the inner surface of the wrapping layer 2, the outer surface of the air separator 3, and the rigid ribs 53A formed on its outer surface. Except for these points, which are different from those in the first embodiment, the rest are the same as in the first embodiment. Here, the same symbols are used for the same parts as in the first embodiment, and their descriptions are omitted.

[0070] like Figure 4 As shown, spiral ribs 53A are formed on the outer surface of the air separator 3 as described above. An oxygen-enriched gas inlet 51A, connected to the air inlet pipe 4 for supplying air, is formed between the first and second ribs from the left. An oxygen-enriched gas outlet 52A, for supplying oxygen-enriched gas, is correspondingly formed at the right end of the air separator 3 on the wrapping layer 2 (see reference). Figure 5 ).

[0071] Based on the above-described structure, such as Figure 5As shown, the air that has entered the air separator 3 from the air inlet duct 4 is separated into oxygen-rich gas and nitrogen-rich gas, wherein the oxygen-rich gas enters the oxygen-rich gas recuperation passage 5A from the oxygen-rich gas inlet port 51A and flows therein, and then is discharged to the outside 8 via the oxygen-rich gas discharge port 52A.

[0072] In addition, the nitrogen-rich gas separated by the air separator 3 is discharged to the fuel system 7 via another passage, i.e., the nitrogen-rich gas discharge passage 6, as in the first embodiment.

[0073] Although the wrapping layer 2 is made of leather in the present embodiment, the present embodiment is not limited thereto, and can be made of other soft materials.

[0074] In addition, since the ribs 53A for forming the oxygen-rich gas recuperation passage 5A are made of hard material and have a certain hardness, the oxygen-rich gas recuperation passage 5A having a fixed shape can be formed by the ribs 53A having a certain hardness even if the wrapping layer is made of soft material.

[0075] In addition, although not shown, in the present embodiment, a temperature measuring device is provided for measuring the temperature of the air separator in real time so as to keep the temperature of the air separator within the tolerance temperature range.

[0076] (Technical Effects of the Second Embodiment)

[0077] According to the recuperation device 1A of the air separator configured as described above, by wrapping the wrapping layer 2 around the outer periphery of the air separator 3, the heat dissipation of the air separator 3 can be suppressed as in the past.

[0078] In addition, by recovering the heat of the oxygen-rich gas flowing therein by the oxygen-rich gas recuperation passage 5A, the air separator 3 inside can be preheated. In this way, the air separator 3 can be heated while it is working, and can be quickly preheated when it is started, and can be easily kept within the tolerance temperature range while it is working. Moreover, since a part of the oxygen-rich gas recuperation passage 5A is directly constituted by the outer surface of the air separator 3, it is closely connected to the air separator 3, and thus the heat of the oxygen-rich gas recuperation passage 5A can be quickly transferred to the air separator 3.

[0079] In addition, the ribs 53A are formed in the oxygen-rich gas recuperation passage 5A surrounded by the inner surface of the wrapping layer 2 and the outer surface of the air separator 3, and thus the thickness of the wrapping layer does not become large, the structure of the inerting system does not become complex, and the large size can be avoided.

[0080] (Modified Example of the Second Embodiment)

[0081] Although in the above-described second embodiment, the rib 53A formed on the outer surface of the air separator 3 is spiral-shaped, the present application is not limited thereto, but the rib 53B as shown in Figures 3 to 5 may be formed to have a circumferential length of about two-thirds of the circumference of the air separator 3. Figure 6

[0082] In the above-described second embodiment, the rib 53A formed on the outer surface of the air separator 3 is spiral-shaped, the present application is not limited thereto, but the rib 53B as shown in Figure 6 may be formed to have a circumferential length of about two-thirds of the circumference of the air separator 3.

[0083] According to the above-described configuration, as shown in Figure 7 , the air entering the air separator 3 from the air inlet pipe 4 is separated into oxygen-rich gas and nitrogen-rich gas, the oxygen-rich gas of which enters the oxygen-rich gas regenerative passage 5B from the oxygen-rich gas inlet 51B and flows therein, and then is discharged to the outside 8 via the oxygen-rich gas outlet 52B.

[0084] In addition, the nitrogen-rich gas separated by the air separator 3 is discharged to the fuel system 7 via another passage, i.e., the nitrogen-rich gas discharge passage 6, as in the above-described first embodiment.

[0085] Although in the present embodiment, the wrapping layer 2 is made of leather, the present embodiment is not limited thereto, but can be made of other soft materials.

[0086] In addition, since the rib for forming the oxygen-rich gas regenerative passage is made of a hard material and has a certain hardness, even in the case where the wrapping layer is made of a soft material, the oxygen-rich gas regenerative passage 5B having a fixed shape can be formed by the rib having a certain hardness.

[0087] In addition, although not shown, in the present embodiment, in order to measure the temperature of the air separator in real time so as to keep it within the tolerance temperature range, a temperature measuring device is further provided, which measures the temperature of the air separator.

[0088] (Technical effects of the present variant)

[0089] According to the regenerative device 1B of the air separator configured as described above, by wrapping the wrapping layer 2 around the outer periphery of the air separator 3, the heat dissipation of the air separator 3 can be suppressed as in the past.

[0090] ​Further, by utilizing the oxygen-enriched gas recuperation passage 5B to recover the heat of the oxygen-enriched gas flowing therein, the air separator 3 inside can be preheated. In this way, the air separator 3 can be heated while it is operating, and can be quickly preheated when it is started up, and can be easily maintained within a tolerance temperature range while it is operating. Moreover, since a portion of the oxygen-enriched gas recuperation passage 5B is directly constituted by the outer surface of the air separator 3, it is closely connected to the air separator 3, and thus the heat of the oxygen-enriched gas recuperation passage 5B can be quickly transferred to the air separator 3.

[0091] Further, the ribs 53B are formed in the oxygen-enriched gas recuperation passage 5B surrounded by the inner surface of the wrapping layer 2 and the outer surface of the air separator 3, and thus do not cause the thickness of the wrapping layer to become large, the structure of the inerting system to become complex, and the inerting system to become large.

[0092] The above, in order to make the various embodiments of the present application purposes, technical scheme and advantages more clearly, combined with the drawings in the embodiments of the present application to the technical scheme of the various embodiments of the present application has been clearly, completely described, obviously, the described embodiments are a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative labor belong to the scope of the present application.

[0093] In the above first embodiment, the wrapping layer is made of, for example, stainless steel material, but the present application is not limited thereto, and can be made of other hard materials.

[0094] In the above second embodiment, the wrapping layer is made of, for example, leather, but the present application is not limited thereto, and can be made of other soft materials.

[0095] In the above first to third embodiments, the oxygen-enriched gas recuperation passage is formed throughout the entire circumference of the air separator, but the present application is not limited thereto, and can be formed only along a portion of the outer circumference of the air separator.

[0096] In the above second embodiment, the ribs formed on the outer surface of the separator are formed throughout the entire circumference of the separator, and in the above third embodiment, the circumference length of the ribs formed on the outer surface of the separator is about two-thirds of the circumference length of the separator, but the present application is not limited thereto, and the circumference length of the ribs formed on the outer surface of the separator can be other percentages of the entire circumference length of the separator.

Claims

1. A regenerative device for an air separator, comprising: An air separator that separates the introduced air into an oxygen-rich gas and a nitrogen-rich gas; as well as A wrapping layer that surrounds the outer periphery of the air separator. Its features are, A regenerative channel is formed between the wrapping layer and the air separator for the passage of the oxygen-enriched gas.

2. The regenerative device for the air separator as described in claim 1, characterized in that, The regenerative channel is formed throughout the entire circumference of the air separator and includes an oxygen-enriched gas inlet for introducing oxygen-enriched gas from the air separator and an oxygen-enriched gas outlet for discharging oxygen-enriched gas.

3. The regenerative device for the air separator as described in claim 1 or 2, characterized in that, The oxygen-enriched gas inlet is formed in the air separator. The oxygen-enriched gas outlet is formed in the encapsulation layer.

4. The regenerative device for the air separator as described in claim 1 or 2, characterized in that, The wrapping layer is made of a rigid material. The regenerative channel is formed by the inner surface of the wrapping layer and the outer surface of the air separator.

5. The regenerative device for the air separator as described in claim 1 or 2, characterized in that, The wrapping layer is made of a flexible material, and ribs made of a rigid material are provided on the inner side of the wrapping layer. The regenerative channel is formed by the inner surface of the wrapping layer, the outer surface of the rib, and the outer surface of the air separator.

6. The regenerative device for the air separator as described in claim 5, characterized in that, The ribs are formed throughout the entire circumference of the air separator.

7. The regenerative device for the air separator as described in claim 5, characterized in that, The ribs are formed over two-thirds of the entire circumference of the air separator.

8. The regenerative device for the air separator as described in claim 1 or 2, characterized in that, It is also equipped with a temperature measuring device for measuring the temperature of the air separator.

9. The regenerative device for the air separator as described in claim 1 or 2, characterized in that, The regenerative device of the air separator also includes a nitrogen-rich gas discharge channel for the flow of nitrogen-rich gas separated from the air. The nitrogen-rich gas discharge channel is set up independently relative to the heat recovery channel. The nitrogen-rich gas exhaust channel is connected to the fuel system.

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