KR100895782B1 - Tube Cleaning and Inspection System - Google Patents

Abstract

The present invention relates to a tube cleaning and inspection system, and more particularly, to a tube cleaning and inspection system for cleaning a tube requiring ultra-high cleanliness, the method comprising storing a cleaning oil for cleaning the tube. Washing oil storage tank, washing oil circulation means for performing the function of sending the washing oil stored in the washing oil storage tank to the tube through the flow path, and washing oil sent to the tube by the washing oil circulation means to filter and contained in the washing oil A first filter which performs a function of filtering out the fine substance, a tube connection end connected to both ends of the tube so that the washing oil filtered by the first filter passes through the tube, and the tube passes through the tube. Measure the contamination level of the tube so that the contamination level can be checked and display it through the display means. Finally, the tube contamination monitoring device performing the function, the tube cleaning oil contamination / cleaning test device which finally checks the contamination and cleanliness of the cleaning oil after the tube cleaning, and the cleaning oil which is sent back to the cleaning oil storage tank after the inspection are finally The present invention relates to a tube cleaning and inspection system consisting of a second filter which performs the function of filtering to filter out fine foreign matter contained in the washing oil.

According to the present invention, when cleaning a tube requiring ultra-high cleanliness, such as an aircraft emergency power unit connection tube, cleaning the tube through the clean filter oil filtered by the first filter, so as to clean the tube as required cleanliness In addition, the washing oil circulated into the washing oil storage tank after the washing of the tube may also remove impurities through the second filter to maintain cleanliness of the washing oil above a predetermined level.

In addition, since the contamination of the washing oil after the tube cleaning and the dual management of the washing oil by the final contamination / cleanliness inspection is made, there is an advantage that can be more reliable in the cleanliness of the washing oil.

Emergency power units, filters, aircraft

Description

Tube Cleaning and Inspection System             

1 is a block diagram showing the configuration of a tube cleaning and inspection system according to a preferred embodiment of the present invention,

2 is a block diagram showing a detailed configuration of the washing oil cleanliness inspection device shown in FIG.

Figure 3 is a flow chart showing the operation of the tube cleaning and inspection system according to a preferred embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: washing oil storage tank

200: washing oil circulation means

300: first filter

400: tube connection end

500: tube

600: Tube Pollution Degree Monitoring Device

700: second filter

800: tube cleaning oil contamination / cleanliness inspection device                 

900: Euro

910: Bypass Valve

According to the present invention, when washing a tube requiring ultra high cleanliness, such as an emergency power unit connecting tube of an aircraft, the cleaning oil may be filtered through a filter to wash the tube with a high cleanliness washing oil, and the cleanliness of the washing oil may be improved. A tube cleaning and inspection system that allows for double inspection.

In general, an aircraft emergency power device is a device that performs a very important function of supplying power on behalf of the main engine when the power supply is impossible due to the abnormality of the main engine during flight of the aircraft.

This emergency power unit is typically driven by fuel supplied from a tube connected to the fuel tank via a fuel / air control valve, so that the connection tube to the emergency power unit is always kept clean so that this material is near zero. shall.

This is because if the connection tube to the emergency power unit contains fine foreign matter, this foreign matter is transferred to the fuel / air control valve and accumulates and eventually blocks the fuel / air control valve. As a result, the emergency power engine cannot be driven in an emergency such as a main engine failure, which can cause serious damage to the aircraft.

Thus, since the emergency power unit connecting tube must be kept clean at all times, the cleaning of the emergency power unit connecting tube can be regarded as one of the important factors for the safety of the aircraft.

To this end, conventionally, the above-mentioned emergency power unit connecting tube is cleaned through an ultrasonic cleaning device which is commonly used where high cleanliness is required.

However, the conventional ultrasonic cleaning equipment has a problem that the cleaning equipment for maintaining the cleanliness of the emergency power unit connecting tube mentioned above is insufficient in terms of cleaning quality and does not satisfy the cleanliness required by the tube.

Therefore, there is an urgent need to develop a system capable of cleanly cleaning a tube requiring ultra high cleanliness, such as the emergency power unit connecting tube, as described above, and inspecting the contamination and cleanliness according to the cleaning result after washing. have.

SUMMARY OF THE INVENTION The present invention has been made in this context, and an object thereof is to provide a tube cleaning and inspection system for cleaning tubes that require the maintenance of very high cleanliness, such as emergency power unit connection tubes.

In order to achieve the above object, the present invention is a tube cleaning and inspection system for cleaning a tube that requires ultra-high cleanliness, washing oil storage tank that performs the function of storing the washing oil for washing the tube, and washing Washing oil circulation means for sending the washing oil stored in the oil storage tank to the tube through the flow path, and filtering the washing oil sent to the tube by the washing oil circulation means to filter out the fine foreign substances contained in the washing oil A first filter which performs a function of dispensing, a tube connecting end connected to both ends of the tube so that the washing oil filtered by the first filter passes through the tube, and washing after washing the tube according to the user's needs Acquire oil and measure the degree of contamination of the tube and display through the display means Is a tube contamination monitoring device, a bypass valve that bypasses the flow path to the tube contamination monitoring device to selectively perform the tube contamination monitoring according to the user's needs, and the cleaning oil contamination sent to the cleaning oil storage tank after cleaning. And a tube cleaning oil contamination / cleaning test device for finally inspecting cleanliness, and a filter for finally filtering the cleaning oil flowing into the cleaning oil storage tank to filter out fine foreign substances contained in the cleaning oil. It consists of 2 filters.

At this time, the tube washing oil contamination / cleanliness inspection device, by the membrane filter (Membrane Filter) and the membrane filter for passing through the washing oil sent to the washing oil storage tank through the flow path to filter the fine material An electron microscope for inspecting the filtered and filtered fine material, a display means for displaying an image of the fine material obtained from the electron microscope, an analysis control unit for analyzing the obtained display image and the data related to the fine material and transmitting the analysis result to the management system Is made of.

On the other hand, it is preferable that the first filter uses a disk filter of 1 μm, the second filter uses a disk filter of 3 μm, and the membrane filter of the washing oil cleanliness inspection device uses a membrane filter of 0.8 μm.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention in detail.

First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used to refer to the same components, even if displayed on different drawings.

1 is a block diagram showing the configuration of a tube cleaning and inspection system according to a preferred embodiment of the present invention.

As shown, the washing oil storage tank 100, the washing oil circulation means 200, the first filter 300, the tube connection end 400, the tube contamination monitoring device 600, tube cleaning Oil pollution / cleanliness test device 800 and the second filter 700.

The washing oil storage tank 100 performs a function of storing the washing oil for washing the tube 500.                     

Washing oil circulation means 200 is composed of a pump or a compression tank to perform the function of sending the washing oil stored in the washing oil storage tank 100 to the tube 500 through the flow path (900).

The first filter 300 filters the washing oil sent to the tube 500 by the washing oil circulation means 200 to filter out the fine foreign matter contained in the washing oil, and preferably 1 μm. Use a disk filter.

The tube connection end 400 performs a function of connecting both ends of the tube 500 to the flow path 900 so that the filtered washing oil passing through the flow path 900 may pass through the inside of the tube 500.

The tube contamination level monitoring apparatus 600 acquires the washing oil after passing through the tube 500 according to the user's need, and measures the contamination level of the tube 500, and displays it to the user through a display means such as a display liquid crystal. By doing so, the user can monitor the degree of contamination of the tube 500 directly.

In this case, in order to perform the tube contamination monitoring by the tube contamination monitoring device 600, the bypass oil 910 is installed in the flow path 900 to clean the tube 500, the cleaning oil to the tube contamination monitoring device 600 By allowing bypass, it is desirable to optionally enable intermediate monitoring.

The tube washing oil contamination / cleaning test apparatus 800 performs a function of finally inspecting the contamination and cleanliness of the washing oil after washing the tube 500 into the washing oil storage tank 100.                     

The second filter 700 is contained in the washing oil after filtering the washing oil introduced into the washing oil storage tank 100 after the contamination and cleanliness test using the tube washing oil contamination / cleaning tester 800. It filters out various fine foreign matter, and the washing oil to be reused serves to maintain a high cleanliness, wherein the second filter 700 is preferably a disk filter of 3 ㎛.

FIG. 2 is a block diagram showing a detailed configuration of the tube cleaning oil contamination / cleanness inspection device 800 shown in FIG. 1, and as shown, the cleaning oil cleanliness inspection device 800 is after washing the tube 500. Filtered and filtered by a membrane filter 830 of 0.8 ㎛ and the membrane filter 830 to pass through the washing oil directed to the second filter 700 through the flow path (900) to filter the fine material contained in the washing oil An electron microscope 840 for inspecting the fine material, a display means 850 for displaying an image of the fine material obtained from the electron microscope 840, and the obtained fine material related data to be analyzed and the result management system 900 Analysis control unit 860 to be transmitted to.

Figure 3 is a flow chart showing the operation of the tube cleaning and inspection system according to a preferred embodiment of the present invention.

First, the user connects both ends of the tube 500 to the tube connecting end 400 to clean the emergency power unit connecting tube 500 of the aircraft and starts the pump which is the washing oil circulation means 200 (step: S1 ).

When the pump is operated, the washing oil stored in the washing oil storage tank 100 is transferred to the first filter 300 through the flow path 900, and the first filter 300 filters the washing oil to impurity of 1 μm or more. Filter out all particles (step S2).

The cleaning oil filtered by the first filter 300 to maintain the high cleanliness is delivered to the tube 500 through the tube connection end 400 to clean the tube (step: S3), if the user is a tube ( If you want to monitor the contamination of the 500 (step: S4) Optionally, by using the bypass valve 910 to send the cleaning oil toward the tube contamination monitoring device 600, the tube contamination monitoring device 600 is a bypass valve ( The degree of contamination of the washing oil having finished washing the tube sent by 910 is measured, and the degree of contamination of the obtained tube is displayed on the display liquid crystal (step S5).

If the user does not perform the tube contamination test at this time, the washing oil after washing the tube 500 is immediately sent to the tube washing oil contamination / cleaning test device 800.

On the other hand, the washing oil is performed to wash the tube 500 is directed to the washing oil storage tank 100 for circulation again, at this time tube cleaning oil contamination / cleanliness inspection device according to the user's choice (step: S6) Finally, the contamination and cleanliness test is performed by step 800 (step: S7).

Looking at the process (step: S7),

First, washing the tube 500 and the washing oil directed to the washing oil storage tank 100 passes through the membrane filter 830 of the tube washing oil contamination / cleaning test device 800, and at this time, the membrane filter 830 In this process, the fine substance contained in the washing oil is filtered out.

Subsequently, the electron microscope 840 photographs the membrane filter 830 and transmits the data to the display means 850. The display means 850 displays an image of the fine material filtered by the membrane filter 830. .

On the other hand, the analysis control unit 860 analyzes the image obtained by the electron microscope 840 and related data to determine whether the washing oil satisfies the reference pollution degree and cleanliness to transmit to the management system 900.

Accordingly, the user can know the cleanliness flowing into the washing oil storage tank 100 through the analysis judgment data transmitted to the image and the management system 900 displayed by the display means 850, and the corresponding filter ( Correspondence such as replacement of 300, 700) can be established.

On the other hand, the cleaning oil after the above-described pollution and cleanliness inspection is finally filtered by the second filter once more.

That is, after the second filter 700 filters all the impurity particles of 3 μm or more from the flow path 900 flowing into the washing oil storage tank 100, the filtered cleaning oil is filtered through the flow path 900. By introducing into (100) (step: S9), it is possible to further increase the reliability of the cleanliness of the washing oil in the washing oil storage tank 100.

As mentioned above, although preferred embodiments of the present invention have been described in detail, those of ordinary skill in the art to which the present invention pertains should realize the present invention without departing from the spirit and scope of the present invention as defined in the appended claims. It will be appreciated that various modifications or changes can be made. Accordingly, modifications to future embodiments of the present invention will not depart from the technology of the present invention.

As described above, according to the present invention, when washing a tube requiring ultra-high cleanliness, such as an aircraft emergency power unit connecting tube, the tube is cleaned through clean washing oil filtered by a first filter, thereby requiring the tube. The cleanliness can be washed as much as possible, and the washing oil circulated into the washing oil storage tank after the washing of the tube can also remove impurities through the second filter to maintain the cleanliness of the washing oil at a predetermined level or more.

In addition, the contamination level of the tube can be measured and managed through the tube contamination monitoring device, and the cleaning oil flowing into the cleaning oil storage tank is provided with an image of fine impurities filtered through the membrane filter through the tube cleaning oil open / clean tester. The relevant analytical data can also be obtained, making the cleaning oil more reliable.

Therefore, the tube can be cleaned with a very high degree of cleanliness, so there is an advantage in that it is possible to prevent various accidents caused by failing to clean the tube in advance.

Claims (6)

In a tube cleaning and inspection system for cleaning tubes requiring ultra high cleanliness, A washing oil storage tank configured to store washing oil for washing the tube; Washing oil circulation means for performing a function of sending the washing oil stored in the washing oil storage tank to the tube through a flow path; A first filter filtering the washing oil sent to the tube by the washing oil circulating means to filter out the fine foreign matter contained in the washing oil; A tube connection end connected to both ends of the tube such that the washing oil filtered by the first filter passes through the tube; A second filter for filtering the washing oil sent to the washing oil storage tank after passing through the tube to filter out the fine foreign matter contained in the washing oil; And a tube cleaning oil contamination / cleaning inspection device that performs a function of inspecting the degree of contamination and cleanliness of the cleaning oil after the tube cleaning according to a user's need. The tube cleaning and inspection system of claim 1, wherein the first filter is a disk filter of 1 μm and the second filter is a disk filter of 3 μm. The apparatus of claim 1, further comprising: a tube contamination monitoring device configured to inspect the cleaning oil passing through the tube to measure the degree of contamination of the tube and to display it through a display means; And a bypass valve installed between the tube and the flow path between the tube cleaning oil contamination / cleaning test device and bypassing the tube washing finished washing oil to the tube contamination monitoring device according to a user's selection. Tube cleaning and inspection systems. According to claim 1, The cleaning oil cleanliness inspection device, A membrane filter installed in the flow path after washing the tube to filter fine substances contained in the washing oil; An electron microscope for inspecting the filtered fine material filtered by the membrane filter; Display means for displaying an image of the fine substance obtained from the electron microscope; And an analysis control unit which analyzes the obtained display image and the fine substance related data and transmits the analysis result to a management system. The tube cleaning and inspection system of claim 4, wherein the membrane filter is a 0.8 μm membrane filter. The tube cleaning and inspection system according to claim 1, wherein the washing oil circulation means is any one of a pump and a compression tank.

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