Sealing structure of ultraviolet lamp tube scraping mechanism for ballast water treatment

Abstract

The utility model discloses a sealing structure of an ultraviolet lamp tube scraping mechanism for ballast water treatment, which comprises a bearing seat, one end of the bearing seat is connected with a lead screw shaft of a lead screw through a lip-shaped seal, the other end of the bearing seat is connected with an end portion in a sealing mode through a fastener, one end of a thrust bearing is matched with a boss in the bearing seat, and the other end of the thrust bearing is connected with the bearing seat. The other end is elastically connected with the snap spring; according to the sealing structure, the lip-shaped seal serves as a main sealing element, the end seal serves as an auxiliary seal, leaked seawater can be controlled in a space before the end cover is sealed, and does not invade into an electrical area of the ultraviolet module, so that safe operation of a system is guaranteed, and water leakage can be avoided by observing whether the end seal leaks water or not. An operator can find problems in time and then replace the main sealing element.

Description

Technical Field

[0001] The utility model relates to a sealing structure of an ultraviolet lamp scraping mechanism used for ballast water treatment, and relates to the technical field of ballast water treatment. Background Art

[0002] Ballast water is a must for ships sailing at sea. Since there are local seaweed, algae, fish larvae, fish, mollusks or other living organisms, various parasites, bacteria, viruses, etc. in ballast water, when the ship arrives in another sea area, directly discharging ballast water may have an impact on the local environment. Therefore, the ballast water needs to be treated. The common ballast water treatment uses ultraviolet treatment technology. The ultraviolet treatment module radiates ultraviolet light outward through ultraviolet lamps for sterilization. After a period of use, the protective sleeve outside the ultraviolet lamp tube is easily attached with various dirt due to contact with the treated water. It is necessary to regularly use the internal scraping mechanism to scrub the outer wall of the lamp tube sleeve to ensure its ultraviolet light transmittance. However, due to the strong corrosiveness of seawater and the complexity of the ship environment, the scraping device often leaks seawater due to sealing problems, which in turn causes a chain of safety accidents. Utility Model Content

[0003] The utility model provides a sealing structure of an ultraviolet lamp scraping mechanism for ballast water treatment, which is used to overcome the defect in the prior art that the safe operation of an ultraviolet treatment module is affected by sealing leakage caused by long-term use or improper installation and maintenance.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] The utility model discloses a sealing structure of an ultraviolet lamp scraping mechanism for ballast water treatment, comprising a bearing seat, one end of which is connected to the screw shaft of a screw through a lip seal, and the other end is connected to an end seal through a fastener, one end of a thrust bearing cooperates with a boss in the bearing seat, and the other end is elastically connected to a retaining spring.

[0006] Furthermore, the lip seals are arranged in parallel in multiple layers and are the main sealing elements of the sealing structure.

[0007] Furthermore, the end seal is an end cover and an O-ring located therein.

[0008] Furthermore, the detachable connecting component is a plum blossom-shaped coupling, the driving end of which is fixed on the driving shaft of the motor, and the driven end is connected to the screw shaft.

[0009] Furthermore, the axial positioning of the screw shaft in the bearing seat is ensured by the retaining spring and the thrust bearings arranged opposite to each other.

[0010] Furthermore, the thrust bearing, retaining spring and motor driving shaft are all made of corrosion-resistant metal materials.

[0011] The beneficial effects achieved by the utility model are as follows: the lip seal of the sealing structure serves as the main sealing element, and the end seal serves as the auxiliary seal, which can control the leaked seawater in the space before the end cover seal and will not invade the electrical area of ​​the ultraviolet module, thereby ensuring the safe operation of the system; by observing whether the end seal is leaking, the operator can find the problem in time and then replace the main sealing element. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the utility model in the scrubbing state;

[0014] Figure 2 It is a schematic diagram of the utility model in a disengaged state.

[0015] In the figure: 1. lip seal; 2. thrust bearing; 3. retaining ring; 4. detachable connecting part; 5. O-ring; 6. bearing seat. DETAILED DESCRIPTION

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0017] Example 1

[0018] like Figure 1-2 As shown, a sealing structure of an ultraviolet lamp scraping mechanism for ballast water treatment includes a bearing seat 6, one end of the bearing seat 6 is connected to the screw shaft of the screw through a lip seal 1, and the other end is sealed and connected to the end through a fastener, one end of the thrust bearing 2 cooperates with the boss in the bearing seat 6, and the other end is elastically connected to the retaining spring 3.

[0019] The lip seals 1 are arranged in parallel in multiple layers and are the main sealing elements of the sealing structure.

[0020] The end seal is an end cap and an O-ring 5 located therein.

[0021] The detachable connecting component 4 is a plum blossom coupling, the driving end of which is fixed on the driving shaft of the motor, and the driven end is connected to the screw shaft.

[0022] The axial positioning of the screw shaft in the bearing seat 6 is ensured by the retaining spring 3 and the thrust bearing 2 which is arranged opposite to each other.

[0023] Working process: When scrubbing, open the end seal, remove the end cover and its O-ring 5, insert the active end of the upper coupling of the motor into the driven end of the coupling at the end of the screw rod of the scraping mechanism, start the motor, and the scraping mechanism will perform the sleeve scrubbing work. After scrubbing, unplug the motor and its upper coupling active end from the UV module, and reinstall the end seal.

[0024] When the lip seal 1 fails, due to the existence of the end seal, the leaked seawater will only invade the space in front of the end cover seal. This part of the area only contains the thrust bearing 2, the retaining spring 3, and the motor drive shaft, all of which are made of metal materials resistant to seawater corrosion. Therefore, seawater will not invade the electrical area of ​​the UV module, thereby ensuring the safe operation of the system. If water is found to flow out when the end seal is opened before scraping, the operator can also find the problem in time and replace the lip seal 1 in time, so as not to affect the normal operation of the equipment.

[0025] It should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the above embodiments or to replace some of the technical features therein by equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. The terms used in the description of this application are only for describing specific implementations and are not intended to limit the exemplary implementations according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and devices known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and devices should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0027] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

Claims

1. A sealing structure for an ultraviolet lamp scraping mechanism for ballast water treatment, characterized in that: It includes a bearing seat, one end of which is connected to the screw shaft of the screw through a lip seal, and the other end is connected to the end seal through a fastener. One end of the thrust bearing cooperates with the boss in the bearing seat, and the other end is elastically connected to the retaining spring.

2. The sealing structure of the ultraviolet lamp scraping mechanism for ballast water treatment according to claim 1, characterized in that: The lip seals are arranged in multiple layers and are the main sealing elements of the sealing structure.

3. The sealing structure of the ultraviolet lamp scraping mechanism for ballast water treatment according to claim 1, characterized in that: The end seal is an end cap and an O-ring located therein.

4. The sealing structure of the ultraviolet lamp scraping mechanism for ballast water treatment according to claim 1, characterized in that: The screw shaft is connected to the driven end of the detachable connecting component, and its driving end is fixed on the driving shaft of the motor. The detachable connecting component is a plum blossom coupling.

5. The sealing structure of the ultraviolet lamp scraping mechanism for ballast water treatment according to claim 1, characterized in that: The axial positioning of the screw shaft in the bearing seat is ensured by the retaining spring and the thrust bearings arranged opposite to each other.

6. The sealing structure of the ultraviolet lamp scraping mechanism for ballast water treatment according to claim 1, characterized in that: The thrust bearing, the retaining spring and the motor driving shaft are all made of corrosion-resistant metal.

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