Cleaning device

Abstract

The embodiment of the invention discloses a cleaning device which comprises a spray needle assembly, the spray needle assembly is used for being in butt joint with a throttling assembly of the cleaning device so that the cleaning device can introduce cleaning liquid into the throttling assembly through the spray needle assembly to clean the throttling assembly, and the spray needle assembly comprises a spray needle and a positioning part. The positioning component comprises a positioning seat and a guide part, the guide part is arranged on the positioning seat, the positioning seat is provided with a positioning hole, the guide part is provided with a guide hole, the guide hole is communicated with the positioning hole, the guide hole is used for guiding the spray needle to penetrate through the positioning hole, and the positioning hole is used for positioning the spray needle so that the spray needle can move relative to the positioning seat in the axial direction of the positioning hole. The spray needle is movably inserted into the throttling assembly so as to introduce cleaning liquid into the throttling assembly. According to the cleaning device disclosed by the embodiment of the invention, through the design of the positioning part, the positioning precision of the spray needle is remarkably improved, and the problems of deviation and blockage of the spray needle are avoided.

Description

Technical Field

[0001] This invention relates to the field of cleaning, and more specifically to a cleaning apparatus. Background Technology

[0002] In related technologies, the high-temperature gas-cooled reactor steam generator, as the core equipment for heat transfer between the primary and secondary loops of a nuclear power plant, adopts a vertical, direct-flow spiral tube assembly structure, which is entirely housed within the steam generator shell. This equipment consists of 19 heat exchange components and a total of 665 heat transfer tubes. To ensure the stability of the vapor-liquid two-phase flow within the heat transfer tubes and to achieve uniform flow distribution among the heat transfer tubes, a throttling component is specifically installed at the inlet of each heat transfer tube.

[0003] As the equipment operates over time, scale or oxide deposits are easily formed inside and at the inlet of the throttling component under the long-term effects of complex working conditions such as water quality, high temperature, and high pressure. Therefore, the throttling component of the steam generator needs to be cleaned and maintained regularly.

[0004] However, although there are automatic cleaning devices for throttling components, the positioning accuracy of the nozzle and the inlet of the throttling component is still limited by the movement error of the equipment, which can easily lead to problems such as nozzle deviation and jamming, resulting in reduced cleaning efficiency or damage to the components. Summary of the Invention

[0005] The present invention aims to at least partially solve one of the technical problems in the related art.

[0006] Therefore, embodiments of the present invention propose a cleaning device that, through the design of a positioning component, significantly improves the positioning accuracy of the spray needle, avoids the problems of spray needle deviation and jamming, and thus improves cleaning efficiency.

[0007] The cleaning device of this invention includes a spray needle assembly, which is used to dock with a throttling component of the cleaning device, so that the cleaning device can pass cleaning fluid into the throttling component through the spray needle assembly for cleaning the throttling component. The spray needle assembly includes a spray needle and a positioning component. The positioning component includes a positioning seat and a guide member. The guide member is disposed on the positioning seat. The positioning seat has a positioning hole, and the guide member has a guide hole. The guide hole communicates with the positioning hole. The guide hole is used to guide the spray needle through the positioning hole. The positioning hole is used to position the spray needle so that the spray needle is movable relative to the positioning seat along the axial direction of the positioning hole. The spray needle is movable and inserted into the throttling component to pass cleaning fluid into the throttling component.

[0008] In use, the cleaning device of this invention involves assembling the nozzle assembly of the cleaning device with the throttling component in the steam generator, and aligning the positioning component with the inlet of the throttling component. The guide and positioning seat in the positioning component ensure accurate alignment of the nozzle with the inlet of the throttling component. The guide hole in the guide communicates with the positioning hole in the positioning seat to guide the nozzle through the correct insertion. After accurate nozzle positioning, the cleaning device begins operation, introducing cleaning fluid into the throttling component through the nozzle assembly. The cleaning fluid effectively removes scale or oxide deposits inside the throttling component.

[0009] Compared with related technologies, the cleaning device of this invention significantly improves the positioning accuracy of the spray needle through the design of the positioning component, avoiding the problems of spray needle deviation and jamming, thereby improving the cleaning efficiency. Due to the accurate positioning of the spray needle, the risk of damage to the throttling component during the cleaning process is greatly reduced, which helps to extend the service life of the equipment.

[0010] In some embodiments, the diameter of the guide hole of the cleaning device of the present invention gradually decreases along the direction from the guide hole toward the positioning hole.

[0011] In some embodiments, the cleaning device of the present invention further includes a docking block, which is disposed on the side of the positioning seat away from the guide block. The docking block has a docking hole and communicates with the positioning hole so that the spray needle passes through the docking hole. The docking block is used to guide the positioning seat to dock with the throttling component.

[0012] In some embodiments, the diameter of the docking hole of the cleaning device of the present invention gradually decreases along the direction from the docking hole toward the positioning hole.

[0013] In some embodiments, the docking block of the cleaning device of the present invention has a viewing hole, which is disposed on the side wall of the docking block and communicates with the docking hole.

[0014] In some embodiments, the spray needle of the cleaning device of the present invention has a liquid inlet, a liquid passage, and a liquid outlet, wherein the liquid inlet is connected to the liquid passage, and the liquid outlet is located on the end face of the top of the spray needle and is connected to the liquid passage; and / or, the spray needle has a liquid inlet, a liquid passage, and a liquid outlet, wherein the liquid inlet is connected to the liquid passage, and the liquid outlet is located on the side wall of the spray needle and is connected to the liquid passage.

[0015] In some embodiments, the tip of the spray needle of the cleaning apparatus of the present invention has a tapered portion, and the cross-section of the tapered portion gradually decreases along the direction from the tail end of the spray needle toward the tip of the spray needle.

[0016] In some embodiments, the camera of the cleaning apparatus of the present invention is disposed on the positioning base for recording video of the spray needle.

[0017] In some embodiments, the positioning seat of the cleaning device of the present invention has a mounting hole, the mounting hole is arranged along the axial direction of the positioning hole, the mounting hole has an inclined surface near the inner sidewall of the positioning hole, the inclined surface is gradually inclined along the direction of the guide towards the positioning hole, and the camera is disposed on the inclined surface.

[0018] In some embodiments, the positioning seat of the cleaning device of the present invention has a plurality of weight-reducing holes, which are arranged along the axial direction of the positioning holes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the cleaning device according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the camera structure of the cleaning device according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the liquid flow channel of the cleaning device according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the liquid outlet of the cleaning device according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the structure of the two liquid outlets of the cleaning device according to an embodiment of the present invention.

[0024] Figure label: 1. Spray needle assembly; 101. Spray needle; 1011. Liquid inlet; 1012. Liquid flow channel; 1013. Liquid outlet; 1014. Conical part; 102. Positioning component; 1021. Positioning seat; 10211. Positioning hole; 10212. Mounting hole; 10213. Inclined surface; 10214. Weight reduction hole; 1022. Guide component; 10221. Guide hole; 2. Connecting block; 201. Connecting hole; 202. Viewing hole; 3. Camera. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] Reference Figures 1-5As shown, the cleaning device of this embodiment includes a spray needle assembly 1. The spray needle assembly 1 is used to dock with the throttling component of the cleaning device, so that the cleaning device can pass cleaning fluid into the throttling component through the spray needle assembly 1 for cleaning the throttling component. The spray needle assembly 1 includes a spray needle 101 and a positioning component 102. The positioning component 102 includes a positioning seat 1021 and a guide member 1022. The guide member 1022 is disposed on the positioning seat 1021. The positioning seat 1021 has a positioning hole 10211, and the guide member 1022 has a guide hole 10221. The guide hole 10221 communicates with the positioning hole 10211. The guide hole 10221 is used to guide the spray needle 101 through the positioning hole 10211. The positioning hole 10211 is used to position the spray needle 101 so that the spray needle 101 is movable relative to the positioning seat 1021 along the axial direction of the positioning hole 10211. The spray needle 101 is movable and inserted into the throttling component to pass cleaning fluid into the throttling component.

[0027] In use, the cleaning device of this embodiment connects the nozzle assembly 1 of the cleaning device to the throttling component in the steam generator, and aligns the positioning component 102 with the inlet of the throttling component. The guide 1022 and positioning seat 1021 in the positioning component 102 ensure that the nozzle 101 is accurately aligned with the inlet of the throttling component. The guide hole 10221 in the guide 1022 communicates with the positioning hole 10211 in the positioning seat 1021, guiding the nozzle 101 through correctly. After the nozzle 101 is accurately positioned, the cleaning device begins operation, introducing cleaning fluid into the throttling component through the nozzle assembly 1. The cleaning fluid effectively removes scale or oxide deposits inside the throttling component.

[0028] Compared with related technologies, the cleaning device of the present invention significantly improves the positioning accuracy of the spray needle 101 through the design of the positioning component 102, avoiding the problems of spray needle 101 offset and jamming, thereby improving the cleaning efficiency. Since the spray needle 101 is accurately positioned, the risk of damage to the throttling component during the cleaning process is greatly reduced, which helps to extend the service life of the equipment.

[0029] In some embodiments, such as Figure 1 The diameter of the guide hole 10221 of the cleaning device in this embodiment of the invention gradually decreases along the direction from the guide hole 10221 toward the positioning hole 10211. This gradual decrease in the diameter of the guide hole 10221 helps to guide the spray needle 101 more accurately, ensuring that the spray needle 101 is coaxial with the throttling orifice on the throttling assembly, thereby reducing the risk of damage to the spray needle 101.

[0030] Optionally, the inner wall roughness of the guide hole 10221 is Ra0.8μm to reduce the frictional resistance between the cleaning needle and the inner wall of the guide hole 10221, further improve the guiding stability, and prevent the spray needle 101 from deviating due to vibration during insertion.

[0031] In some embodiments, such as Figure 2 As shown, the cleaning device of this embodiment of the invention further includes a docking block 2. The docking block 2 is disposed on the side of the positioning seat 1021 away from the guide block. The docking block 2 has a docking hole 201 and communicates with the positioning hole 10211 so that the spray needle 101 passes through the docking hole 201. The docking block 2 is used to guide the positioning seat 1021 to dock with the throttling component.

[0032] The use of docking block 2 in conjunction with positioning seat 1021 enhances the stability of positioning seat 1021 when docking with the throttling component. The presence of docking block 2 provides an additional support point for the entire docking process, helping to ensure its smooth progress.

[0033] The docking block 2 has a docking hole 201 that communicates with the positioning hole 10211. This ensures accurate docking of the positioning seat 1021 with the throttling component while the nozzle 101 passes through the docking hole 201. The docking hole 201 further guides and restricts the position of the positioning seat 1021, making the docking process more precise.

[0034] Optionally, the inner diameter of the mating hole 201 is 0.2 mm larger than the outer diameter of the throttling component interface to ensure that the positioning seat 1021 can be smoothly fitted into the throttling component interface, while reducing the radial clearance and ensuring the mating accuracy.

[0035] In some embodiments, such as Figure 2 As shown, the diameter of the docking hole 201 of the cleaning device in this embodiment of the invention gradually decreases along the direction from the docking hole 201 toward the positioning hole 10211. The gradually decreasing diameter of the docking hole 201 helps guide the docking block 2 to dock with the throttling component, making it easier to fit the docking block 2 into the inlet of the throttling component.

[0036] The gradually decreasing aperture provides a tightening effect, resulting in a tighter fit between the docking block 2 and the throttling component, enhancing docking stability and reducing potential displacement or vibration during cleaning.

[0037] In some embodiments, such as Figure 1 and Figure 2 As shown, the docking block 2 of the cleaning device in this embodiment of the invention has a viewing hole 202, which is located on the side wall of the docking block 2 and communicates with the docking hole 201. The viewing hole 202 allows the operator to directly observe the docking situation inside the docking block 2 and to check whether the nozzle 101 and the throttling component are accurately docked.

[0038] Through the viewing hole 202, the operator can monitor the position and direction of the nozzle 101 in real time during the docking process, ensuring accurate docking of the nozzle 101 with the throttling component, thus improving the accuracy and efficiency of docking.

[0039] In some embodiments, such as Figure 3 As shown, the spray needle 101 of the cleaning device in this embodiment of the invention has a liquid inlet 1011, a liquid flow channel 1012, and a liquid outlet 1013. The liquid inlet 1011 communicates with the liquid flow channel 1012, and the liquid outlet 1013 is located on the end face of the top of the spray needle 101 and communicates with the liquid flow channel 1012. The communication between the liquid inlet 1011 and the liquid flow channel 1012 ensures that the cleaning fluid can smoothly enter the interior of the spray needle 101. The liquid outlet 1013 is located at the top of the spray needle 101 and communicates with the liquid flow channel 1012. This design allows the cleaning fluid to be sprayed out from the top of the spray needle 101 with a certain pressure and direction, forming an effective cleaning flow and improving the cleaning effect.

[0040] Since the cleaning fluid is sprayed directly from the outlet 1013 at the tip of the nozzle 101, this ensures that the cleaning fluid acts on the scale or oxide deposits of the throttling component with high speed and impact force, thus improving cleaning efficiency.

[0041] In some embodiments, such as Figure 4 As shown, the nozzle 101 of the cleaning device in this embodiment of the invention has a liquid inlet 1011, a liquid flow channel 1012, and a liquid outlet 1013. The liquid inlet 1011 communicates with the liquid flow channel 1012, and the liquid outlet 1013 is located on the side wall of the nozzle 101 and communicates with the liquid flow channel 1012. The location of the liquid outlet 1013 on the side wall of the nozzle 101 allows the cleaning fluid to form a circulating flow on the inner wall of the throttling assembly, thereby improving the coverage of the cleaning fluid and helping to thoroughly remove scale or oxide deposits inside the throttling assembly.

[0042] The design of the side wall outlet 1013 allows the cleaning fluid to be evenly distributed inside the throttling component, avoiding cleaning blind spots and improving the uniformity of cleaning.

[0043] The cleaning fluid is sprayed out from the side wall outlet 1013 of the nozzle 101. This design can reduce the resistance of the cleaning fluid in the flow channel, reduce pressure loss, and improve the transmission efficiency of the cleaning fluid.

[0044] In some embodiments, such as Figure 5As shown, the cleaning device of this embodiment has a spray needle 101 with an inlet 1011, a flow channel 1012, and an outlet 1013. The inlet 1011 communicates with the flow channel 1012, and the outlet 1013 is located on the side wall of the spray needle 101 and communicates with the flow channel 1012. The outlet 1013 is also located on the end face of the top of the spray needle 101 and communicates with the flow channel 1012. The spray needle 101 has outlets 1013 on both its top and side walls, enabling multi-angle cleaning of the throttling component. The design of two outlets 1013 allows the cleaning fluid to flow cross-currently within the throttling component, which helps improve the uniformity of cleaning and ensures that all parts of the throttling component are thoroughly cleaned.

[0045] In some embodiments, such as Figure 3 , Figure 4 and Figure 5 As shown, the nozzle 101 of the cleaning device of this embodiment has a tapered portion 1014 at its tip, and the cross-section of the tapered portion 1014 gradually decreases along the direction from the tail end of the nozzle 101 toward the tip of the nozzle 101. The tapered portion 1014 facilitates the insertion of the nozzle 101 into the inlet of the throttling assembly.

[0046] In some embodiments, such as Figure 2 As shown, the camera 3 of the cleaning device in this embodiment of the invention is mounted on the positioning seat 1021 for recording the spray needle 101. By setting the camera 3, it is convenient to remotely observe the insertion of the spray needle 101 and the docking of the positioning seat 1021 with the throttling component. The camera 3 can be remotely electrically connected to a display, so that the spray needle 101 and the docking situation can be observed through the display.

[0047] In some embodiments, such as Figure 2 As shown, the positioning seat 1021 of the cleaning device in this embodiment of the invention has a mounting hole 10212, which is arranged axially along the positioning hole 10211. The mounting hole 10212 has an inclined surface 10213 near the inner wall of the positioning hole 10211. The inclined surface 10213 gradually tilts along the direction of the guide member 1022 toward the positioning hole 10211, and the camera 3 is disposed on the inclined surface 10213. In this way, the camera 3 is placed in the mounting hole 10212, which helps to save space and avoids interference between the camera 3 and other components.

[0048] In some embodiments, such as Figure 1 As shown, the cleaning device positioning seat 1021 of this embodiment has multiple weight-reducing holes 10214, which are arranged along the axial direction of the positioning hole 10211. The weight-reducing holes 10214 help to reduce weight.

[0049] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0053] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A cleaning device, characterized in that, Includes a spray needle assembly (1), which is used to dock with the throttling component of the cleaning device so that the cleaning device can pass cleaning fluid into the throttling component through the spray needle assembly (1) for cleaning the throttling component; The nozzle assembly (1) includes a nozzle (101) and a positioning component (102). The positioning component (102) includes a positioning seat (1021) and a guide (1022). The guide (1022) is disposed on the positioning seat (1021). The positioning seat (1021) has a positioning hole (10211). The guide (1022) has a guide hole (10221). The guide hole (10221) communicates with the positioning hole (10211). The guide hole (10221) is used to guide the nozzle (101) through the positioning hole (10211). The positioning hole (10211) is used to position the nozzle (101) so that the nozzle (101) is movable relative to the positioning seat (1021) along the axial direction of the positioning hole (10211). The nozzle (101) is movably inserted into the throttling assembly to introduce cleaning fluid into the throttling assembly.

2. The cleaning device according to claim 1, characterized in that, The diameter of the guide hole (10221) gradually decreases along the direction from the guide hole (10221) toward the positioning hole (10211).

3. The cleaning device according to claim 1, characterized in that, It also includes a docking block (2), which is located on the side of the positioning seat (1021) away from the guide block. The docking block (2) has a docking hole (201) and communicates with the positioning hole (10211) so that the nozzle (101) passes through the docking hole (201). The docking block (2) is used to guide the positioning seat (1021) to dock with the throttling component.

4. The cleaning device according to claim 3, characterized in that, The diameter of the docking hole (201) gradually decreases along the direction from the docking hole (201) toward the positioning hole (10211).

5. The cleaning device according to claim 3, characterized in that, The docking block (2) has a viewing hole (202), which is located on the side wall of the docking block (2) and communicates with the docking hole (201).

6. The cleaning apparatus according to claim 1, characterized in that, The nozzle (101) has a liquid inlet (1011), a liquid flow channel (1012), and a liquid outlet (1013). The liquid inlet (1011) communicates with the liquid flow channel (1012), and the liquid outlet (1013) is located on the end face of the top of the nozzle (101) and communicates with the liquid flow channel (1012); and / or, The spray needle (101) has an inlet (1011), a flow channel (1012) and an outlet (1013). The inlet (1011) is connected to the flow channel (1012), and the outlet (1013) is located on the side wall of the spray needle (101) and is connected to the flow channel (1012).

7. The cleaning device according to claim 1, characterized in that, The tip of the nozzle (101) has a tapered portion (1014), the cross-section of which gradually decreases along the direction from the tail end of the nozzle (101) toward the tip of the nozzle (101).

8. The cleaning apparatus according to claim 1, characterized in that, It also includes a camera (3), which is located on the positioning seat (1021) for recording the nozzle (101).

9. The cleaning apparatus according to claim 8, characterized in that, The positioning seat (1021) has a mounting hole (10212), which is arranged along the axial direction of the positioning hole (10211). The mounting hole (10212) has an inclined surface (10213) near the inner wall of the positioning hole (10211). The inclined surface (10213) gradually tilts along the direction of the guide (1022) toward the positioning hole (10211). The camera (3) is located on the inclined surface (10213).

10. The cleaning apparatus according to any one of claims 1-9, characterized in that, The positioning seat (1021) has a weight reduction hole (10214), and there are multiple weight reduction holes (10214), which are arranged along the axial direction of the positioning hole (10211).

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