Split type mechanical sealing structure

Abstract

The utility model discloses a split type mechanical sealing structure which comprises a main body unit, the main body unit comprises a first pipe fitting and a second pipe fitting, a positioning groove is formed in the top of the first pipe fitting, a positioning ring is welded to the bottom of the second pipe fitting, and the positioning ring is matched with the positioning groove; and the sealing unit is located between the bottom of the positioning ring and the groove bottom of the positioning groove, the sealing unit comprises a sealing ring, an annular groove is formed in the sealing ring, four spacing bars are fixedly connected in the annular groove, and the annular groove is evenly divided into four filling cavities by the spacing bars. According to the design, the defects in the prior art are overcome, through the design that the filling cavity is matched with the curing repairing agent, the cracking position of the sealing ring can be temporarily filled in time, the sealing performance between mechanical structures is prevented from being affected by cracking of the sealing ring, and when the sealing ring is broken, a worker can know the situation in time.

Description

TECHNICAL FIELD

[0001] The utility model relates to sealing technical field especially relates to a split type mechanical seal structure. BACKGROUND

[0002] Sealing can be divided into static sealing and dynamic sealing two categories, sealing is to prevent fluid or solid particle from adjacent joint surface leakage and prevent the invasion of outside impurities such as dust and moisture etc.

[0003] Under prior art, when connecting two pipe fittings by connecting piece, sealing ring is usually arranged at the connecting part, the sealing ring can guarantee the sealing property between two pipe fittings, but the outer side of sealing ring will gradually break inwards due to oxidation and other reasons in use, thereby greatly affecting the sealing property, and the staff also cannot quickly know that the sealing ring has broken, thereby unable to replace or repair the sealing ring in time. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems existing in prior art, the utility model is proposed.

[0006] Therefore, the utility model aims to provide a split type mechanical seal structure, which aims to solve the problem that the outer side of the sealing ring will gradually break inwards due to oxidation and other reasons in use, thereby greatly affecting the sealing property, and the staff also cannot quickly know that the sealing ring has broken, thereby unable to replace or repair the sealing ring in time.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] A split type mechanical seal structure comprises:

[0009] A main unit comprises a first pipe fitting and a second pipe fitting, the first pipe fitting is provided with a positioning groove at the top, the second pipe fitting is welded with a positioning ring at the bottom, the positioning ring is matched with the positioning groove, and a bolt is installed between the positioning ring and the positioning groove.

[0010] The sealing unit is located between the bottom of the positioning ring and the bottom of the positioning groove, and comprises a sealing ring, an annular groove is arranged in the sealing ring, and a spacing strip is fixedly connected in the annular groove, four spacing strips are uniformly arranged, and the annular groove is evenly divided into four filling cavities by the spacing strips.

[0011] As a preferred scheme of the split mechanical sealing structure, the filling cavities are filled with solidified repair agents, the solidified repair agents are used for filling the cracking on the outer side of the sealing ring, and the air pressure in the filling cavities is higher than that of the external environment.

[0012] As a preferred scheme of the split mechanical sealing structure, the filling cavities are fixedly installed with air pressure sensors and signal transmitting modules, the output end of the air pressure sensor is electrically connected with the input end of the signal transmitting module, and the output end of the air pressure sensor and the input end of the signal transmitting module are electrically connected through wires.

[0013] As a preferred scheme of the split mechanical sealing structure, the sealing ring is provided with penetrating holes penetrating through the sealing ring, five penetrating holes are arranged, and the five penetrating holes are arrayed in the circumferential direction of the sealing ring.

[0014] As a preferred scheme of the split mechanical sealing structure, the positioning ring is provided with bolts, the bolts correspond to the penetrating holes and are provided with five bolts, the bottom of the positioning groove is provided with threaded grooves, and the threaded grooves correspond to the bolts and are provided with five threaded grooves.

[0015] As a preferred scheme of the split mechanical sealing structure, one end of the bolt penetrates through the penetrating hole and extends into the threaded groove, the one end of the bolt is provided with external threads, the threaded groove is provided with internal threads, and the external threads are matched with the internal threads.

[0016] The utility model discloses the beneficial effect of the split mechanical sealing structure:

[0017] In use, the outermost edge of the sealing ring may crack due to prolonged oxidation or other factors. The curing repair agent within the filling cavity flows to the crack and solidifies, temporarily filling and repairing the crack. Because the air pressure inside the filling cavity is higher than the ambient air pressure, when the outermost edge of the sealing ring cracks, the air pressure inside the filling cavity changes. The air pressure sensor detects this change and transmits it as an electrical signal to the signal transmitting module. The signal transmitting module then converts the electrical signal into radio waves and transmits them outwards. Personnel at the external control center receive these radio waves, thus promptly notifying them of the sealing ring damage. This design overcomes the shortcomings of existing technologies. Through the design of the filling cavity and the curing repair agent, cracks in the sealing ring can be temporarily filled promptly, preventing the cracked sealing ring from affecting the sealing performance between mechanical structures. Furthermore, when a sealing ring cracks, personnel can be notified immediately, allowing for quick inspection and selection of whether to replace it. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is an exploded view of the overall structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the sealing unit of this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the image.

[0023] In the diagram: 100, main unit; 101, first pipe fitting; 102, second pipe fitting; 103, positioning ring; 104, positioning groove; 105, bolt; 106, threaded groove; 200, sealing unit; 201, sealing ring; 202, filling cavity; 203, through hole; 204, spacer bar; 205, air pressure sensor; 206, signal transmitting module; 207, wire. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can be practiced in other ways not described herein, and it is understood that the present application is not limited to the specific embodiments described herein and that the scope of the present application encompasses many alternatives, modifications and equivalents. It is to be understood that the features of the present application can be combined, substituted, or deleted for other technically feasible features in order to implement the present application in various ways. Therefore, the present application is not limited to the specific embodiments disclosed below, but can be implemented in other ways not described herein.

[0026] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive of other embodiments.

[0027] Thirdly, the present application is described in detail in conjunction with the schematic diagram. In the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual manufacture.

[0028] Referring to Figures 1-4 , the present application provides a split type mechanical sealing structure, comprising:

[0029] The main unit 100 comprises a first pipe 101 and a second pipe 102. The first pipe 101 has a positioning groove 104 at the top. The second pipe 102 has a positioning ring 103 welded at the bottom. The positioning ring 103 matches the positioning groove 104. A bolt 105 is installed between the positioning ring 103 and the positioning groove 104.

[0030] The sealing unit 200 is located between the bottom of the positioning ring 103 and the bottom of the positioning groove 104. The sealing unit 200 comprises a sealing ring 201. The sealing ring 201 has an annular groove inside. The annular groove is fixedly connected with a spacing strip 204. Four spacing strips 204 are evenly arranged. The spacing strip 204 evenly divides the annular groove into four filling cavities 202.

[0031] Further, the filling cavity 202 is filled with a solidified repair agent, which is used to fill the cracks outside the sealing ring 201, and the air pressure in the filling cavity 202 is higher than that of the external environment. The filling cavity 202 is fixedly installed with an air pressure sensor 205 and a signal transmitting module 206. The output end of the air pressure sensor 205 is electrically connected to the input end of the signal transmitting module 206 through a wire 207. The solidified repair agent is a material composed of high molecular polymer, metal or ceramic ultra-fine powder, fiber, etc. as a base material, and a curing agent and a curing accelerator. The solidified repair agent is a prior art in the repair agent field, and will not be described here. The air pressure sensor 205 can sense the change of air pressure and transmit the change information in the form of an electric signal to the signal transmitting module 206 through the wire 207. The signal transmitting module 206 can emit the electric signal in the form of radio waves.

[0032] Further, the sealing ring 201 is provided with five through holes 203, which are arrayed around the circumference of the sealing ring 201. The positioning ring 103 is provided with bolts 105, which correspond to the through holes 203. The bottom of the positioning groove 104 is provided with a threaded groove 106, which corresponds to the bolts 105. One end of the bolt 105 extends into the threaded groove 106 through the through hole 203. One end of the bolt 105 is provided with an external thread, and the threaded groove 106 is provided with an internal thread.

[0033] During use, the worker inserts the positioning ring 103 on the second pipe 102 into the positioning groove 104 on the first pipe 101, and the bottom of the positioning ring 103 abuts against the top of the sealing ring 201. Then, the worker inserts one end of the bolt 105 into the threaded groove 106 through the positioning ring 103 and the through hole 203. In this way, the first pipe 101 and the second pipe 102 are fixed, and the sealing ring 201 is compressed between the first pipe 101 and the second pipe 102. The sealing ring 201 ensures the sealing between the first pipe 101 and the second pipe 102.

[0034] The outermost side of the sealing ring 201 will crack after a long time under the action of oxidation and other reasons, at this time, the solidified repair agent in the filling cavity 202 flows to the cracking position and solidifies, completing the temporary filling repair of the cracking position, and because the air pressure in the filling cavity 202 is higher than the air pressure in the external environment, when the outermost side of the sealing ring 201 cracks, the air pressure in the filling cavity 202 changes, the air pressure sensor 205 senses the change and transmits the change information to the signal transmitting module 206 in the form of an electric signal through the electric wire 207, the signal transmitting module 206 converts the electric signal into the form of a radio wave and transmits it outward, and the staff in the external control center receives the radio wave, so that the staff can know that the sealing ring 201 cracks in time and can quickly check the condition of the sealing ring 201 to select whether to replace the sealing ring 201.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A split mechanical seal structure, characterized by, Include: The main unit (100) includes a first pipe (101) and a second pipe (102), the first pipe (101) top is provided with positioning slot (104), the second pipe (102) bottom is welded with positioning ring (103), the positioning ring (103) is matched with positioning slot (104), the positioning ring (104) is installed with bolt (105) between positioning slot (104); The sealing unit (200) is located between the bottom of the positioning ring (103) and the bottom of the positioning slot (104), the sealing unit (200) includes a sealing ring (201), the sealing ring (201) is provided with an annular groove inside, the annular groove is fixedly connected with a spacer strip (204), the spacer strip (204) is uniformly provided with four, the spacer strip (204) is evenly divided into four filling cavities (202).

2. The split mechanical seal structure of claim 1, wherein The filling cavity (202) is filled with a curing repair agent, the curing repair agent is used to fill the cracking outside the sealing ring (201), and the air pressure in the filling cavity (202) is higher than that of the external environment.

3. The split mechanical seal structure of claim 1, wherein The filling cavity (202) is fixedly installed with a gas pressure sensor (205) and a signal emitting module (206), the output end of the gas pressure sensor (205) is electrically connected with the input end of the signal emitting module (206), and the output end of the gas pressure sensor (205) is electrically connected with the input end of the signal emitting module (206) through a wire (207).

4. The split mechanical seal structure of claim 1, wherein The sealing ring (201) is provided with a through hole (203), the through hole (203) is provided with five, and the five through holes (203) are arrayed around the circumference of the sealing ring (201).

5. The split mechanical seal structure of claim 1, wherein The positioning ring (103) is provided with a bolt (105), the bolt (105) is provided with five corresponding through holes (203), and the bottom of the positioning slot (104) is provided with a threaded groove (106), the threaded groove (106) is provided with five corresponding bolts (105).

6. The split mechanical seal structure of claim 5, wherein One end of the bolt (105) extends into the threaded groove (106) through the through hole (203), the bolt (105) is provided with an external thread at one end, the threaded groove (106) is provided with an internal thread, and the external thread is matched with the internal thread.

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