CN218283010U - Cleaning device for inner cavity of small-diameter catheter - Google Patents

Cleaning device for inner cavity of small-diameter catheter Download PDF

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CN218283010U
CN218283010U CN202221976385.1U CN202221976385U CN218283010U CN 218283010 U CN218283010 U CN 218283010U CN 202221976385 U CN202221976385 U CN 202221976385U CN 218283010 U CN218283010 U CN 218283010U
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pipeline
small
diameter
cleaning device
inner cavity
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CN202221976385.1U
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李玉龙
耿昌
刘旭升
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Zhejiang Landspace Technology Co Ltd
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Zhejiang Landspace Technology Co Ltd
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Abstract

The utility model provides a belt cleaning device for minor diameter pipe inner chamber contains first pipeline structure, second pipeline structure, circulating pump and cell body. The first pipeline structure is used for conveying the cleaning agent in the tank body into the small-diameter guide pipe through the circulating pump, one end of the first pipeline structure is connected with the tank body, and the other end of the first pipeline structure is connected with the inlet end of the small-diameter guide pipe; the second pipeline structure is used for conveying the cleaning agent in the small-diameter guide pipe back into the tank body, one end of the second pipeline structure is connected with the tank body, and the other end of the second pipeline structure is connected with the outlet end of the small-diameter guide pipe; the first pipeline structure comprises a first pipeline and a second pipeline, the inlet end of the first pipeline is positioned at the lower part of the liquid level of the cleaning agent in the tank body, the outlet end of the first pipeline is connected with the inlet end of a circulating pump, the outlet end of the circulating pump is connected with the inlet end of the second pipeline, and the outlet end of the circulating pump is communicated with the inlet end of the small-diameter guide pipe. The device has the advantages of good cleaning effect, high cleaning efficiency and the like.

Description

Cleaning device for inner cavity of small-diameter catheter
Technical Field
The utility model relates to the technical field of pipelines, especially, relate to a belt cleaning device for minor diameter pipe inner chamber.
Background
With the rapid development of the aerospace industry, all the technologies related to the rocket field also realize the rapid advance. The pressurizing and conveying system is a key subsystem of the space carrier rocket and is used for conveying propellant with certain flow and pressure to an engine, ensuring reliable supply of the propellant and simultaneously undertaking filling and discharging work of the rocket propellant.
The pressurized conveying system is formed by connecting guide pipes with different specifications and complex shapes, and provides higher requirements for cleaning the inner cavity of the guide pipe in order to prevent redundant materials in the inner cavity of the guide pipe from blocking the guide pipe and further avoid causing the failure of a valve, an engine and even the whole rocket. The production process of the catheter relates to a plurality of inner cavity cleaning procedures, including oil removal, alkali cleaning and acid cleaning. The existing cleaning method is to wholly or partially soak the catheter in the solution of the cleaning tank, and the catheter is shaken once at a certain time interval in the soaking process, so that the solution in the inner cavity of the catheter can be conveniently replaced.
Typically, the number of tubes for a single rocket body and engine can be thousands, and these tubes are typically stainless steel tubes and aluminum alloy tubes. As the rocket has a very complex structure and the space trend of the guide pipe is limited, the shape of the rocket is also complex, and the length of part of the guide pipe reaches 2-4 meters. In addition, the small diameter conduit with the inner diameter less than 20mm accounts for 60 to 70 percent of the total amount of the rocket conduit.
For such small-diameter catheters with complex shapes and long lengths, due to poor flow conditions of the solution in the inner cavity, if a method of wholly or partially soaking and cleaning is adopted, problems of incomplete cleaning of local air-holding, incomplete cleaning of grease, excess matters and welding line oxides and the like often occur, so that repeated reworking is inevitable, and the production efficiency and the quality of the catheters are seriously affected. In addition, a large-sized groove body is required to be arranged to meet the requirement of long guide pipe cleaning, the using amount of chemicals is high, and the production cost is high.
It is desirable to provide a cleaning apparatus that is reasonable in design, reliable in process, and capable of improving work efficiency.
Disclosure of Invention
An object of the utility model is to overcome prior art's not enough, provide a belt cleaning device for minor diameter pipe inner chamber. The device for cleaning the inner cavity of the catheter has the advantages of reasonable design, reliable process, capability of improving the working efficiency and the like.
One aspect of the utility model provides a cleaning device for an inner cavity of a small-diameter conduit, which comprises a first pipeline structure, a second pipeline structure, a circulating pump and a tank body for containing a cleaning agent, wherein the first pipeline structure is used for conveying the cleaning agent in the tank body into the small-diameter conduit through the circulating pump, one end of the first pipeline structure is connected with the tank body, and the other end of the first pipeline structure is used for being connected with an inlet end of the small-diameter conduit; the second pipeline structure is used for conveying the cleaning agent in the small-diameter guide pipe back into the tank body, wherein one end of the second pipeline structure is connected with the tank body, and the other end of the second pipeline structure is connected with the outlet end of the small-diameter guide pipe; first pipeline structure contains first pipeline and second pipeline, the entry end of first pipeline is located the lower part of the cleaner liquid level in the cell body, the exit end with the entrance end connection of circulating pump, the exit end of circulating pump with the entrance end connection of second pipeline, the exit end of second pipeline with the entry end intercommunication of minor diameter pipe, the both ends of minor diameter pipeline respectively through quick-operation joint with first pipeline structure and second pipeline structure accordant connection.
Furthermore, the first pipeline and the second pipeline are respectively and fixedly connected with the circulating pump through connecting flanges.
Furthermore, the first pipeline is L-shaped in appearance; the second pipeline is U-shaped in appearance.
Furthermore, the first pipeline is provided with a check valve, and the check valve is used for preventing the cleaning agent from flowing back into the tank body from the first pipeline.
Furthermore, the quick coupling is a pipe body with two communicated ends and an inner thread on the inner wall, and an outer thread matched with the inner thread is arranged at the position where the second pipeline is connected with the quick coupling.
Further, the inner diameters of the first pipeline and the second pipeline are equal.
Further, the second pipeline structure comprises a third pipeline, a fourth pipeline and a filtering device;
the inlet end of the third pipeline is communicated with the outlet end of the small-diameter guide pipe, the outlet end of the third pipeline is communicated with the inlet end of the filtering device, the outlet end of the filtering device is communicated with the inlet end of the fourth pipeline, and the outlet end of the fourth pipeline is positioned at the lower part of the liquid level in the tank body.
Furthermore, the appearance of third pipeline is the L type, the fourth pipeline is the communicating cylinder structure in both ends, filter equipment is used for filtering the cleaner liquid through the minor diameter pipe backward flow.
Furthermore, the filtering device comprises a shell with a cavity inside and a filtering net; the filter screen is fixedly connected with the inner wall of the shell along the circumferential direction of the inner side of the shell; the casing is the cuboid structure, just the upper reaches and the low reaches of cuboid be equipped with respectively with the third pipeline with inlet channel and exit channel that the fourth pipeline matches.
Further, the fixing platform is used for fixing the small-diameter catheter.
The embodiment of the utility model provides a belt cleaning device for minor diameter pipe inner chamber. The device comprises first pipeline structure, second pipeline structure, circulating pump and the cell body that is used for holding the cleaner. Whole structure constitutes a closed loop circulation system through first pipeline structure, second pipeline structure, circulating pump, cell body and minor diameter pipe, and the cleaner passes through the circulating pump and carries to in the minor diameter pipe, accomplishes the inside circulation of minor diameter pipe and washs to impurity in the messenger minor diameter pipe can flow along with the cleaner from the minor diameter pipe, in order to ensure the inside cleanness of minor diameter pipe. The whole cleaning device is designed, so that the cleaning agent can be fully contacted with the inner cavity of the small-diameter catheter, the cleaning agent can be used for cleaning the inner wall of the small-diameter catheter conveniently, and the inner cavity of the small-diameter catheter is enabled to be cleaner.
In addition, the cleaning device of the application, through set up the quick-operation joint that matches with minor diameter pipe entrance point and exit end respectively at first pipeline structure and second pipeline structure, realized disposing according to the pipe diameter size of minor diameter pipe is nimble, when making things convenient for pipeline and minor diameter pipe zonulae occludens, can also improve work efficiency. Although it can be said that, it is not easy to repeat, but rather it is detailed, it should be understood that the above general description and the following detailed description are only exemplary and illustrative, and should not limit the scope of the present invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification of the invention, illustrate exemplary embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural view of the middle cleaning device of the present invention.
Description of the reference numerals:
1 circulating pump 2 groove body
3 first pipeline 4 second pipeline
5 quick coupling 6 third pipeline
7 fourth pipeline 8 filtering device
9 fixed platform 10 small diameter catheter
Detailed Description
Reference will now be made in detail to various exemplary embodiments of the present invention, which should not be considered limiting of the invention, but rather should be construed as providing more detailed descriptions of certain aspects, features and embodiments of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. The specification and examples are exemplary only.
One aspect of the present invention provides a cleaning device for an inner chamber of a small diameter catheter. As shown in figure 1, the cleaning device for the inner cavity of the small-diameter conduit comprises a first pipeline structure, a second pipeline structure, a circulating pump 1 and a tank body 2 for containing a cleaning agent. The first pipeline structure is used for conveying the cleaning agent in the tank body 2 into the small-diameter guide pipe 10 through the circulating pump 1. Wherein, first pipeline structure one end is connected with cell body 2, and the other end is used for being connected with the entry end of minor diameter pipe 10. The second pipeline structure is used for conveying the cleaning agent in the small-diameter conduit 10 back to the tank body 2, wherein one end of the second pipeline structure is connected with the tank body 2, and the other end of the second pipeline structure is used for being connected with the outlet end of the small-diameter conduit 10. First pipeline structure contains first pipeline 3 and second pipeline 4, and the entry end of first pipeline 3 is located the lower part of the cleaner liquid level in cell body 2, and the exit end is connected with the entrance point of circulating pump 1, and the exit end of circulating pump 1 and the entrance point of second pipeline 4 are connected, and the exit end of second pipeline 4 and the entry end intercommunication of minor diameter pipe 10, minor diameter pipe 10 entrance point and exit end both ends set up quick-operation joint 5 that is used for matcing first pipeline structure and second pipeline structure respectively.
In one embodiment, the utility model provides a belt cleaning device comprises first pipeline structure, second pipeline structure, circulating pump 1 and the cell body 2 that is used for holding the cleaner. The structure of the whole cleaning device forms a closed loop circulating system through a first pipeline structure, a second pipeline structure, a circulating pump 1, a tank body 2 and a small-diameter guide pipe 10. The cleaning agent is conveyed into the small-diameter guide pipe 10 through the circulating pump 1, and the inside of the small-diameter guide pipe 10 is circularly cleaned, so that impurities in the small-diameter guide pipe 10 can flow out of the small-diameter guide pipe 10 along with the cleaning agent, and the inside of the small-diameter guide pipe 10 is ensured to be clean. The whole cleaning mode can enable the cleaning agent to be in full contact with the inner cavity of the small-diameter catheter, the cleaning agent can clean the inner wall of the small-diameter catheter 10 conveniently, and therefore the inner cavity of the small-diameter catheter is enabled to be cleaner.
In addition, the cleaning device can be flexibly configured according to the pipe diameter of the small-diameter conduit by arranging the quick connectors 5 at the inlet end and the outlet end of the small-diameter conduit 10 in a matching manner, so that the working efficiency can be improved while the pipeline is conveniently and tightly connected with the small-diameter conduit 10.
It is worth mentioning that, in order to make first pipeline 3, second pipeline 4 be connected closely with circulating pump 1, it is fixed firm, for example, the position that first pipeline 3, second pipeline 4 are connected with circulating pump 1 respectively all passes through flange fixed connection. By adopting the flange fixed connection, not only can the tight connection and firm fixation be ensured, but also the assembly and disassembly are convenient, and the working efficiency is further improved.
Note that, for convenience, the first pipe 3 is connected to the circulation pump 1 and the tank 2, and the second pipe 4 is connected to the circulation pump 1 and the small-diameter pipe 10, for example, the first pipe 3 has an L-shaped outer shape, and the second pipe 4 has a U-shaped outer shape.
In the present embodiment, in order to prevent the cleaning agent from flowing back into the tank body 2 from the first pipeline 3, for example, a check valve is provided in the first pipeline 3, and the check valve is used to prevent the cleaning agent from flowing back into the tank body 2 from the first pipeline 3.
In addition, for convenient connection, for example, the quick connector 5 is a pipe body with two ends communicated and an inner wall provided with an internal thread, and the part of the second pipeline 4 connected with the quick connector 5 is provided with an external thread matched with the internal thread.
It is particularly noted that, in order to facilitate the processing, it is also convenient to connect the first pipeline 3 and the second pipeline 4 with the circulation pump 1, for example, the inner diameters of the first pipeline 3 and the second pipeline 4 are equal.
It is further noted that the second pipeline structure comprises a third pipeline 6, a fourth pipeline 7 and a filtering device 8. The inlet end of the third pipeline 6 is communicated with the outlet end of the small-diameter conduit 10, the outlet end of the third pipeline 6 is communicated with the inlet end of the filtering device 8, the outlet end of the filtering device 8 is communicated with the inlet end of the fourth pipeline 7, and the outlet end of the fourth pipeline 7 is positioned at the lower part of the liquid level in the tank body 2.
In this embodiment, for example, the inlet end of the third line 6 may be connected to the outlet of the small diameter pipe 10 via a quick coupling 5. For example, the inlet end of the third pipe 6 is provided with an external thread matching the internal thread of the quick coupling 5, so that the third pipe 6 can be screwed with the outlet end of the small-diameter pipe 10 through the quick coupling 5.
In addition, for convenience of connecting the third pipeline with the small diameter conduit 10 and the filtering device 8, for example, the third pipeline 6 is L-shaped in external shape, and the fourth pipeline 7 is a cylindrical structure with two ends communicated. The filter device 8 is used for filtering the cleaning agent liquid flowing back through the small-diameter conduit 10 (impurities flowing out of the small-diameter conduit 10 along with the cleaning agent).
In addition, the filtering device comprises a shell with a cavity inside and a filtering net. In order to ensure that the housing and the filter screen are tightly connected and firmly fixed, for example, the filter screen is fixedly connected with the inner wall of the housing along the inner circumference of the housing, and for example, the filter screen and the inner wall of the housing can be fixed by welding. In order to ensure the stable structure of the casing, the casing is conveniently connected with the third pipeline 6 and the fourth pipeline 7, for example, the casing is in a cuboid structure, and an inlet channel and an outlet channel which are matched with the third pipeline 6 and the fourth pipeline 7 are respectively arranged at the upstream and the downstream of the cuboid.
It should be noted that, in order to ensure that the small-diameter catheter 10 is firmly fixed and prevented from shaking during the flushing process of the small-diameter catheter 10, for example, the small-diameter catheter 10 may be fixed on the fixing platform 9. The small diameter catheter 10 is bound to the fixed platform 9 by a wire, for example.
The above embodiments may be combined with each other with corresponding technical effects.
The foregoing is only an illustrative embodiment of the present invention, and any equivalent changes and modifications made by those skilled in the art without departing from the spirit and principles of the present invention should fall within the protection scope of the present invention.

Claims (10)

1. A cleaning device for an inner cavity of a small-diameter catheter is characterized by comprising a first pipeline structure, a second pipeline structure, a circulating pump and a tank body for containing a cleaning agent,
the first pipeline structure is used for conveying the cleaning agent in the tank body into the small-diameter guide pipe through the circulating pump, wherein one end of the first pipeline structure is connected with the tank body, and the other end of the first pipeline structure is connected with the inlet end of the small-diameter guide pipe;
the second pipeline structure is used for conveying the cleaning agent in the small-diameter guide pipe back into the tank body, wherein one end of the second pipeline structure is connected with the tank body, and the other end of the second pipeline structure is connected with the outlet end of the small-diameter guide pipe;
first pipeline structure contains first pipeline and second pipeline, the entry end of first pipeline is located the lower part of the cleaner liquid level in the cell body, the exit end with the entrance point of circulating pump is connected, the exit end of circulating pump with the entrance point of second pipeline is connected, the exit end of second pipeline with the entry end intercommunication of minor diameter pipe, the both ends of minor diameter pipeline respectively through quick-operation joint with first pipeline structure and second pipeline structure accordant connection.
2. The cleaning device for the inner cavity of the small-diameter catheter according to claim 1, wherein the parts of the first pipeline and the second pipeline, which are respectively connected with the circulating pump, are fixedly connected through connecting flanges.
3. The cleaning device for the small-diameter catheter inner cavity according to claim 1, wherein the first pipeline is L-shaped in shape; the second pipeline is U-shaped in appearance.
4. The cleaning device for the small-diameter catheter inner cavity as claimed in claim 1, wherein the first pipeline is provided with a one-way valve for preventing cleaning agent from flowing back from the first pipeline into the tank.
5. The cleaning device for the inner cavity of the small-diameter catheter as claimed in claim 1, wherein the quick connector is a tube body with two ends communicated and an inner wall provided with an internal thread, and an external thread matched with the internal thread is arranged at a connecting part of the second pipeline and the quick connector.
6. The cleaning device for small diameter catheter lumens of claim 1 wherein said first tubing and said second tubing have equal inside diameters.
7. The cleaning device for the inner cavity of the small-diameter catheter as claimed in claim 1, wherein the second pipeline structure comprises a third pipeline, a fourth pipeline and a filtering device; the inlet end of the third pipeline is communicated with the outlet end of the small-diameter guide pipe, the outlet end of the third pipeline is communicated with the inlet end of the filtering device, the outlet end of the filtering device is communicated with the inlet end of the fourth pipeline, and the outlet end of the fourth pipeline is positioned at the lower part of the liquid level in the tank body.
8. The cleaning device for the inner cavity of the small-diameter catheter as claimed in claim 7, wherein the third pipeline is L-shaped, the fourth pipeline is a cylinder structure with two communicated ends, and the filtering device is used for filtering cleaning agent liquid flowing back through the small-diameter catheter.
9. The cleaning device for the inner cavity of the small-diameter catheter as claimed in claim 7, wherein the filtering device comprises a housing with a cavity inside and a filtering net; the filter screen is fixedly connected with the inner wall of the shell along the circumferential direction of the inner side of the shell; the casing is the cuboid structure, just the upper reaches and the low reaches of cuboid structure be equipped with respectively with the third pipeline with inlet channel and exit channel that the fourth pipeline matches.
10. The cleaning device for the small-diameter catheter lumen as recited in claim 1, further comprising a fixation platform for fixing the small-diameter catheter.
CN202221976385.1U 2022-07-29 2022-07-29 Cleaning device for inner cavity of small-diameter catheter Active CN218283010U (en)

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Application Number Priority Date Filing Date Title
CN202221976385.1U CN218283010U (en) 2022-07-29 2022-07-29 Cleaning device for inner cavity of small-diameter catheter

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Application Number Priority Date Filing Date Title
CN202221976385.1U CN218283010U (en) 2022-07-29 2022-07-29 Cleaning device for inner cavity of small-diameter catheter

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CN218283010U true CN218283010U (en) 2023-01-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115446045A (en) * 2022-07-29 2022-12-09 蓝箭航天空间科技股份有限公司 Method for cleaning inner cavity of small-diameter catheter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115446045A (en) * 2022-07-29 2022-12-09 蓝箭航天空间科技股份有限公司 Method for cleaning inner cavity of small-diameter catheter
CN115446045B (en) * 2022-07-29 2024-05-07 浙江蓝箭航天空间科技有限公司 Method for cleaning inner cavity of small-diameter catheter

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