Clearing device

Abstract

The utility model provides a cleaning device which comprises a circulation pipeline used for being connected with an external component so as to enable a medium in the circulation pipeline to flow into the external component. The descaling part is used for emitting sound waves to remove scale, the descaling pipe is arranged on the circulation pipeline in a sleeving mode, and the descaling part is movably arranged in the descaling pipe in the circumferential direction of the descaling pipe; and the two ends of the pump body communicate with the circulation pipeline and the descaling pipe correspondingly, so that the pump body pumps a medium in the circulation pipeline into the descaling pipe, and the medium in the descaling pipe pushes the descaling piece to move so as to remove scale in the medium in the circulation pipeline. The cleaning device solves the problem that in the prior art, the working efficiency of the plate heat exchanger is low due to incrustation in the plate heat exchanger.

Description

Technical Field

[0001] The utility model relates to the technical field of descaling, and particularly to a cleaning device. Background Art

[0002] A plate heat exchanger is formed by stacking multiple metal plates. The plates are sealed and the flow is guided by gaskets between the plates, separating into two cold / hot fluid channels. The cold and hot fluids flow through their respective channels and exchange heat with the separated plates to reach the temperature required by the user.

[0003] However, due to scale in the cold and hot fluids flowing into the plate heat exchanger, after the plate heat exchanger works for a long time, a large amount of scale will appear on the plates, which easily causes blockage of the fluid channels, and further leads to a decrease in the working efficiency of the plate heat exchanger. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a cleaning device to solve the problem of low working efficiency of the plate heat exchanger caused by scale inside the plate heat exchanger in the prior art.

[0005] To achieve the above purpose, the utility model provides a cleaning device, including: a circulation pipeline for connecting with external components so that the medium in the circulation pipeline flows into the external components; a descaling pipe and a descaling member for emitting sound waves to remove scale. The descaling pipe is sleeved on the circulation pipeline, and the descaling member is movably arranged in the descaling pipe along the circumferential direction of the descaling pipe; a pump body, both ends of the pump body are respectively communicated with the circulation pipeline and the descaling pipe, so that the pump body pumps the medium in the circulation pipeline into the descaling pipe, and the medium in the descaling pipe pushes the descaling member to move to remove the scale in the medium in the circulation pipeline.

[0006] Furthermore, the cleaning device further includes: a connection assembly, the connection assembly includes two limiting plates and a spherical connecting member. The two limiting plates are respectively arranged on both sides of the spherical connecting member and connected with the spherical connecting member. The descaling member is arranged on the spherical connecting member, and each limiting plate abuts against the pipe wall of the descaling pipe, so that the medium in the descaling pipe drives the descaling member to move by squeezing the limiting plates.

[0007] Furthermore, the connection assembly further includes two connecting rods, the two connecting rods are arranged corresponding to the two limiting plates, and both ends of each connecting rod are respectively connected with the spherical connecting member and the limiting plate, so that the limiting plate is connected with the spherical connecting member.

[0008] Furthermore, the connection assembly further includes: a support member and a first connecting pipe. The support member is arranged between the circulation pipeline and the pump body to support the pump body; wherein, both ends of the first connecting pipe are respectively communicated with the pump body and the descaling pipe, so that the medium in the pump body flows into the descaling pipe through the first connecting pipe.

[0009] Further, the connecting component further includes: a second connecting pipe, both ends of the second connecting pipe are respectively communicated with the first connecting pipe and the descaling pipe, the second connecting pipe is telescopically arranged, the pipe orifice of the second connecting pipe penetrates through the pipe wall of the descaling pipe, and the second connecting pipe is arranged on the side of the limiting plate away from the spherical connecting piece.

[0010] Further, the cleaning device further includes an injection pipe for injecting scale inhibitor, one end of the injection pipe forms an injection port, the other end of the injection pipe is communicated with the flow pipeline, so that the scale inhibitor enters the flow pipeline through the injection port and the injection pipe in sequence, and reacts with the medium in the flow pipeline to complete descaling.

[0011] Further, the cleaning device further includes a main body plate, a first connecting plate and a second connecting plate. The second connecting plate, the main body plate and the first connecting plate are sleeved on the flow pipeline in sequence along the extending direction of the flow pipeline. Two plate surfaces of the first connecting plate are respectively connected with the descaling pipe and the main body plate, and the injection pipe is arranged between the main body plate and the second connecting plate.

[0012] Further, the cleaning device further includes: a support plate and a support pipe. The support plate is erected on the tops of the main body plate and the second connecting plate, and the injection pipe passes through the support plate; wherein, both ends of the support pipe are respectively connected with the main body plate and the second connecting plate, so as to connect the main body plate and the second connecting plate.

[0013] Further, there are multiple injection pipes, and the multiple injection pipes are arranged at intervals along the extending direction of the support plate.

[0014] Further, through holes for the injection pipes to pass through are arranged on the support plate, and the cleaning device further includes a sealing ring, and the sealing ring is arranged between the through holes and the injection pipes to seal the injection pipes.

[0015] Applying the technical solution of the present utility model, the cleaning device includes a flow pipeline, a descaling pipe, a descaling member and a pump body. After the medium is introduced into the flow pipeline, the pump body and the descaling member are started, and the medium in the flow pipeline is pumped into the descaling pipe. The medium in the descaling pipe will push the descaling member to move along the circumferential direction of the descaling pipe during the flowing process. During this process, the descaling member continuously emits sound waves to remove scale. While the descaling member is moving, it can comprehensively remove the scale in the medium in the flow pipeline from different positions of the flow pipeline, ensuring that the descaling member can fully remove the scale in the medium in the flow pipeline, avoiding the medium flowing into external components carrying too much scale and causing blockage of the external components, and thus solving the problem that the scale inside the plate heat exchanger in the prior art causes the working efficiency of the plate heat exchanger to be relatively low. Description of the Drawings

[0016] The accompanying drawings of the specification, which form a part of this application, are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 It shows a schematic structural diagram of a first angle of an embodiment of a cleaning device according to the present utility model;

[0018] Figure 2 It shows a sectional structural diagram of a second angle of an embodiment of a cleaning device according to the present utility model;

[0019] Figure 3 It shows Figure 2 a partial enlarged sectional schematic diagram at A in

[0020] Figure 4 It shows a sectional structural diagram of a third angle of an embodiment of a cleaning device according to the present utility model;

[0021] Figure 5 It shows Figure 4 a partial enlarged schematic diagram at B in

[0022] Among them, the above-mentioned drawings include the following reference numerals:

[0023] 1. Flow pipeline; 11. Descaling pipe; 12. Descaling part; 13. Pump body; 141. Limiting plate; 142. Spherical connecting piece; 143. Connecting rod; 15. Support piece; 16. First connecting pipe; 17. Second connecting pipe; 18. Clamping piece; 21. Injection pipe; 22. Support plate; 23. Support pipe; 30. Main body plate; 40. First connecting plate; 50. Second connecting plate; 60. Sealing ring. Detailed implementation manners

[0024] It should be noted that the terms used here are only for describing the specific implementation manners and are not intended to limit the exemplary implementation manners according to this application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0025] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0026] In the description of the present application, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0027] Please refer to Figures 1 to 5 , the present utility model provides a cleaning device, including: a circulation pipeline 1 for connecting with an external component to enable the medium in the circulation pipeline 1 to flow into the external component; a descaling pipe 11 and a descaling member 12 for emitting sound waves to remove scale, the descaling pipe 11 is sleeved on the circulation pipeline 1, and the descaling member 12 is movably arranged in the descaling pipe 11 along the circumferential direction of the descaling pipe 11; a pump body 13, both ends of the pump body 13 are communicated with the circulation pipeline 1 and the descaling pipe 11 respectively, so that the pump body 13 pumps the medium in the circulation pipeline 1 into the descaling pipe 11, and the medium in the descaling pipe 11 pushes the descaling member 12 to move to remove the scale in the medium in the circulation pipeline 1.

[0028] The cleaning device of the present utility model includes a circulation pipeline 1, a descaling pipe 11, a descaling member 12, and a pump body 13. After the medium is introduced into the circulation pipeline 1, the pump body 13 and the descaling member 12 are activated, and the medium in the circulation pipeline 1 is pumped into the descaling pipe 11. During the flow of the medium in the descaling pipe 11, the descaling member 12 will be pushed to move along the circumferential direction of the descaling pipe 11. During this process, the descaling member 12 continuously emits sound waves to remove scale. While the descaling member 12 is moving, it can comprehensively remove the scale in the medium in the circulation pipeline 1 from different orientations of the circulation pipeline 1, ensuring that the descaling member 12 can fully remove the scale from the medium in the circulation pipeline 1, avoiding the medium flowing into external components carrying excessive scale and causing blockage of the external components, and thus solving the problem that the scale inside the plate heat exchanger in the prior art results in a low working efficiency of the plate heat exchanger.

[0029] Specifically, both ends of the circulation pipeline 1 are respectively connected to the medium source and the external component, so that the medium from the medium source flows into the circulation pipeline 1 to complete descaling and then flows into the external component, where the external component refers to a plate heat exchanger.

[0030] In this embodiment, as Figure 3 shown, the cleaning device further includes: a connection assembly, which includes two limiting plates 141 and a spherical connecting member 142. The two limiting plates 141 are respectively arranged on both sides of the spherical connecting member 142 and connected to the spherical connecting member 142. The descaling member 12 is arranged on the spherical connecting member 142, and each limiting plate 141 abuts against the pipe wall of the descaling pipe 11, so that the medium in the descaling pipe 11 drives the descaling member 12 to move by squeezing the limiting plate 141.

[0031] Specifically, each limiting plate 141 abuts against the pipe wall of the descaling pipe 11. When there is no medium flowing in the descaling pipe 11, the connection assembly remains relatively stationary with respect to the descaling pipe 11. When there is medium flowing in the descaling pipe 11, the medium will push the limiting plate 141 to move along the circumferential direction of the descaling pipe 11, and the limiting plate 141 drives the spherical connecting member 142 and the descaling member 12 to move.

[0032] In this embodiment, as Figure 3 shown, the connection assembly further includes two connecting rods 143. The two connecting rods 143 are arranged in one-to-one correspondence with the two limiting plates 141. Both ends of each connecting rod 143 are respectively connected to the spherical connecting member 142 and the limiting plate 141, so that the limiting plate 141 is connected to the spherical connecting member 142, further ensuring that the descaling member 12 can fully remove the scale from the medium in the circulation pipeline 1.

[0033] Specifically, the connecting rod 143 is used to connect the spherical connecting piece 142 and the limiting plate 141, so that the limiting plate 141 is firmly connected to the spherical connecting piece 142, preventing the limiting plate 141 from separating from the spherical connecting piece 142, and further preventing the descaling member 12 and the spherical connecting piece 142 from moving along with the limiting plate 141, further ensuring that the descaling member 12 can fully descale the medium in the flow pipe 1.

[0034] In this embodiment, as Figure 3 shown, the connection assembly further includes: a support member 15 and a first connecting pipe 16. The support member 15 is disposed between the flow pipe 1 and the pump body 13 to support the pump body 13. Wherein, both ends of the first connecting pipe 16 are respectively communicated with the pump body 13 and the descaling pipe 11, so that the medium in the pump body 13 flows into the descaling pipe 11 through the first connecting pipe 16.

[0035] Specifically, the first connecting pipe 16 is used to connect the pump body 13 and the descaling pipe 11, so that the medium in the flow pipe 1 sequentially flows through the pump body 13 and the first connecting pipe 16 and then into the descaling pipe 11.

[0036] In this embodiment, as Figure 3 shown, the connection assembly further includes: a second connecting pipe 17. Both ends of the second connecting pipe 17 are respectively communicated with the first connecting pipe 16 and the descaling pipe 11. The second connecting pipe 17 is telescopically arranged, and the pipe orifice of the second connecting pipe 17 penetrates through the pipe wall of the descaling pipe 11. The second connecting pipe 17 is disposed on the side of the limiting plate 141 away from the spherical connecting piece 142.

[0037] Specifically, the second connecting pipe 17 is used to connect the first connecting pipe 16 and the descaling pipe 11, so that the medium in the first connecting pipe 16 flows into the descaling pipe 11 through the second connecting pipe 17, smoothly driving the movement of the descaling member 12. Wherein, the telescopic arrangement of the second connecting pipe 17 enables the length of the second connecting pipe 17 to be adjusted, so that the second connecting pipe 17 can be applicable to connecting descaling pipes 11 with different pipe diameters, preventing the pipe orifice of the second connecting pipe 17 from being unable to penetrate through the pipe wall of the descaling pipe 11 when the pipe diameter of the descaling pipe 11 is too large.

[0038] Specifically, the second connecting pipe 17 is disposed on the side of the limiting plate 141 away from the spherical connecting piece 142, so that the medium in the second connecting pipe 17 flows into the descaling pipe 11 from one side of the limiting plate 141. When the medium flows to meet another limiting plate 141, the medium pushes the limiting plate 141 to start moving.

[0039] Specifically, the cleaning device further includes two clamping members 18 disposed above the flow pipe 1. A partial pipe section of the second connecting pipe 17 is clamped between the two clamping members 18 to prevent the second connecting pipe 17 from shaking.

[0040] Specifically, there are two connecting components (not shown in the figure), and there are two pump bodies 13 and two descaling members 12 (not shown in the figure). The two descaling members 12 are arranged in one-to-one correspondence with the two connecting components, and the two descaling members 12 and the two pump bodies 13 are arranged in one-to-one correspondence. The two descaling members 12 are arranged oppositely at the top and bottom of the descaling pipe 11 along the radial direction of the descaling pipe 11. When descaling starts, the two pump bodies 13 are started simultaneously, so that the two pump bodies 13 pump the medium in the flow pipeline 1 into the descaling pipe 11. The medium in the descaling pipe 11 will push the two descaling members 12 to move along the circumferential direction of the descaling pipe 11 during the flowing process. The arrangement of the two descaling members 12 helps to fully remove the scale in the medium in the flow pipeline 1 and improve the descaling efficiency of the cleaning device.

[0041] In this embodiment, as Figure 5 shown, the cleaning device further includes an injection pipe 21 for injecting a scale inhibitor. One end of the injection pipe 21 forms an injection port, and the other end of the injection pipe 21 is communicated with the flow pipeline 1, so that the scale inhibitor enters the flow pipeline 1 through the injection port and the injection pipe 21 in sequence to react with the medium in the flow pipeline 1 to complete descaling.

[0042] Specifically, the injection pipe 21 is used to inject a scale inhibitor into the flow pipeline 1, so that the scale inhibitor reacts chemically with the medium, effectively removing the scale in the medium and further preventing the medium flowing into external components from carrying too much scale and causing blockage of the external components.

[0043] Specifically, the scale inhibitor includes water-soluble phosphates and water-soluble alcohols.

[0044] In this embodiment, as Figure 1 、 Figure 2 and Figure 4 shown, the cleaning device further includes a main body plate 30, a first connecting plate 40 and a second connecting plate 50. The second connecting plate 50, the main body plate 30 and the first connecting plate 40 are sleeved on the flow pipeline 1 in sequence along the extending direction of the flow pipeline 1. Two plate surfaces of the first connecting plate 40 are respectively connected to the descaling pipe 11 and the main body plate 30, and the injection pipe 21 is arranged between the main body plate 30 and the second connecting plate 50.

[0045] Specifically, the main body plate 30 and the second connecting plate 50 are used to limit the position of the flow pipeline 1 to prevent the flow pipeline 1 from moving along its radial direction; the first connecting plate 40 is used to connect the descaling pipe 11 and the main body plate 30 and is also used to axially limit the descaling pipe 11.

[0046] In this embodiment, as Figure 1 、 Figure 2 and Figure 4As shown, the cleaning device further includes: a support plate 22 and a support pipe 23. The support plate 22 is erected on the tops of the main body plate 30 and the second connecting plate 50, and the injection pipe 21 passes through the support plate 22. Among them, both ends of the support pipe 23 are respectively connected to the main body plate 30 and the second connecting plate 50 to connect the main body plate 30 and the second connecting plate 50.

[0047] Specifically, the support plate 22 is used to support the injection pipe 21, and the support pipe 23 is used to connect the main body plate 30 and the second connecting plate 50, which helps to enhance the structural stability of the entire cleaning device.

[0048] In this embodiment, as Figure 5 shown, there are multiple injection pipes 21, and the multiple injection pipes 21 are arranged at intervals along the extending direction of the support plate 22.

[0049] Specifically, the multiple injection pipes 21 can inject scale inhibitors into the flow pipeline 1 simultaneously, which helps to inject a large amount of scale inhibitors quickly, helps the scale inhibitors to fully react with the medium in the flow pipeline 1, and helps to improve the scale removal speed of the cleaning device.

[0050] In this embodiment, through holes for the injection pipe 21 to pass through are provided on the support plate 22. The cleaning device further includes a sealing ring 60, and the sealing ring 60 is arranged between the through hole and the injection pipe 21 to seal the injection pipe 21.

[0051] Specifically, the sealing ring 60 is used to seal the injection pipe 21 to prevent the injection pipe 21 from slipping due to insecure connection with the support plate 22.

[0052] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

[0053] The cleaning device of the present utility model includes a flow pipeline 1, a descaling pipe 11, a descaling member 12, and a pump body 13. After the medium is introduced into the flow pipeline 1, the pump body 13 and the descaling member 12 are started to pump the medium in the flow pipeline 1 into the descaling pipe 11. The medium in the descaling pipe 11 will push the descaling member 12 to move along the circumferential direction of the descaling pipe 11 during the flowing process. During this process, the descaling member 12 continuously emits sound waves to remove scale. While the descaling member 12 is moving, it can comprehensively remove the scale in the medium in the flow pipeline 1 from different positions of the flow pipeline 1, ensuring that the descaling member 12 can fully remove the scale in the medium in the flow pipeline 1, avoiding the medium flowing into external components carrying too much scale and causing blockage of the external components, and thus solving the problem that the scale inside the plate heat exchanger in the prior art leads to low working efficiency of the plate heat exchanger.

[0054] For ease of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding interpretations of the spatial relative descriptions used herein will be made accordingly.

[0055] In addition, it should be noted that the use of terms such as "first" and "second" to define components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present application.

[0056] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A cleaning device, characterized in that, Comprising: A circulation pipeline (1) for connecting with an external component to enable the medium in the circulation pipeline (1) to flow into the external component; A descaling pipe (11) and a descaling member (12) for emitting sound waves to remove scale. The descaling pipe (11) is sleeved on the circulation pipeline (1), and the descaling member (12) is movably arranged in the descaling pipe (11) along the circumferential direction of the descaling pipe (11); A pump body (13), with both ends of the pump body (13) communicating with the circulation pipeline (1) and the descaling pipe (11) respectively, so that the pump body (13) pumps the medium in the circulation pipeline (1) into the descaling pipe (11), and the medium in the descaling pipe (11) pushes the descaling member (12) to move to remove the scale in the medium in the circulation pipeline (1); The cleaning device further includes an injection pipe (21) for injecting a scale inhibitor. One end of the injection pipe (21) forms an injection port, and the other end of the injection pipe (21) communicates with the circulation pipeline (1), so that the scale inhibitor enters the circulation pipeline (1) successively through the injection port and the injection pipe (21) to react with the medium in the circulation pipeline (1) to complete descaling.

2. The cleaning device according to claim 1, characterized in that, The cleaning device further includes: A connection assembly, which includes two limit plates (141) and a spherical connector (142). The two limit plates (141) are respectively arranged on both sides of the spherical connector (142) and connected to the spherical connector (142). The descaling member (12) is arranged on the spherical connector (142), and each limit plate (141) abuts against the pipe wall of the descaling pipe (11), so that the medium in the descaling pipe (11) drives the descaling member (12) to move by squeezing the limit plate (141).

3. The cleaning device according to claim 2, characterized in that, The connection assembly further includes two connecting rods (143). The two connecting rods (143) are arranged corresponding to the two limit plates (141). Both ends of each connecting rod (143) are respectively connected to the spherical connector (142) and the limit plate (141), so that the limit plate (141) is connected to the spherical connector (142).

4. The cleaning device according to claim 2, characterized in that, The connection assembly further includes: A support member (15) and a first connecting pipe (16). The support member (15) is arranged between the circulation pipeline (1) and the pump body (13) to support the pump body (13); Wherein, both ends of the first connecting pipe (16) communicate with the pump body (13) and the descaling pipe (11) respectively, so that the medium in the pump body (13) flows into the descaling pipe (11) through the first connecting pipe (16).

5. The cleaning device according to claim 4, characterized in that, The connection assembly further includes: A second connecting pipe (17), both ends of the second connecting pipe (17) are respectively communicated with the first connecting pipe (16) and the descaling pipe (11), the second connecting pipe (17) is telescopically arranged, the pipe orifice of the second connecting pipe (17) penetrates through the pipe wall of the descaling pipe (11), and the second connecting pipe (17) is arranged on a side of the limiting plate (141) away from the spherical connecting piece (142).

6. The cleaning device according to claim 1, wherein The cleaning device further includes a main body plate (30), a first connecting plate (40) and a second connecting plate (50). The second connecting plate (50), the main body plate (30) and the first connecting plate (40) are sequentially sleeved on the flow-through pipeline (1) along the extending direction of the flow-through pipeline (1). Two plate surfaces of the first connecting plate (40) are respectively connected with the descaling pipe (11) and the main body plate (30), and the injection pipe (21) is arranged between the main body plate (30) and the second connecting plate (50).

7. The cleaning device according to claim 6, wherein The cleaning device further includes: A support plate (22) and a support pipe (23), the support plate (22) is erected on the tops of the main body plate (30) and the second connecting plate (50), and the injection pipe (21) passes through the support plate (22); Wherein, both ends of the support pipe (23) are respectively connected with the main body plate (30) and the second connecting plate (50) so as to connect the main body plate (30) and the second connecting plate (50).

8. The cleaning device according to claim 7, wherein, There are multiple injection pipes (21), and the multiple injection pipes (21) are arranged at intervals along the extending direction of the support plate (22).

9. The cleaning device according to claim 7, characterized in that, Through holes for the injection pipes (21) to pass through are arranged on the support plate (22), and the cleaning device further includes a sealing ring (60). The sealing ring (60) is arranged between the through holes and the injection pipes (21) to seal the injection pipes (21).

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