Energy-saving sealing structure of rotor pump

By designing a removable sealing frame and a multi-layer inner liner sealing structure, the problem of difficult disassembly and assembly of the rotor pump sealing structure is solved, enabling flexible maintenance and improving the sealing effect, thereby enhancing safety and efficiency.

CN223938248UActive Publication Date: 2026-02-24TIANJIN MAIWANG BIOTECHNOLOGY CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520872638.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-02-24
Estimated Expiration
2035-05-06

AI Technical Summary

Technical Problem

The existing rotary pump's sealing structure is difficult to disassemble and reassemble at any time, resulting in inconvenience in maintenance and repair, and affecting its efficiency and safety.

Method used

An energy-saving sealing structure including a sealing frame, a sealing plate, and a multi-layer inner lining is designed. The detachable sealing assembly is achieved through beveled surfaces and bolt connections. The sealing effect is improved by combining a sealing filler layer and a pressure-resistant layer.

Benefits of technology

It enables flexible disassembly and maintenance of the sealing structure, improves safety and efficiency, enhances sealing performance, and simplifies maintenance operations.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223938248U_ABST
    Figure CN223938248U_ABST
Patent Text Reader

Abstract

The utility model provides an energy-saving type sealing structure of a rotor pump, which comprises a sealing assembly, the sealing assembly comprises eight sealing frames, a mounting edge and a mounting groove, one end of each sealing frame is provided with a connecting groove, a mounting hole is formed in each connecting groove, and the other end of each sealing frame is arranged to be an inclined surface; the two sealing frames are fixedly connected with the bolts through matching of the connecting grooves and the connecting pieces, mounting grooves are formed in the inner walls of the sealing frames, and mounting edges are integrally formed on the inner walls of the two sides of each sealing frame. By optimizing the assembly structure of the sealing structure, the frame at a specific position can be disassembled at any time according to requirements so as to achieve targeted maintenance or overhaul work, and the whole operation is simple and easy to realize.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of energy-saving sealing structure technology, specifically to an energy-saving sealing structure for a rotor pump. Background Technology

[0002] A rotary pump is a pump that increases the energy of a liquid by changing its working volume through the relative motion between the rotor and the pump body. A rotary pump is a rotating positive displacement pump with positive displacement characteristics; its flow rate does not change with back pressure.

[0003] Chinese patent application CN202420638581.0 discloses a combined sealing structure for a dry vacuum pump, including a housing with a pump chamber inside. A pair of screw rotors are rotatably mounted inside the pump chamber. A first baffle and a second baffle are respectively installed on both sides of the pump chamber, and both the first and second baffles are rotatably connected to the screw rotors. Lip-shaped sealing gaskets are installed on both the first and second baffles at their connection points with the screw rotors. An opening is provided through one side of the first baffle. An air inlet chamber is provided inside the housing near the first baffle. This device ensures complete isolation between the working chamber and the oil tank and the external environment, preventing gas from escaping from the vacuum pump connection and polluting the surrounding environment. It also prevents gas from entering other components of the vacuum pump and causing production risks, thereby improving the working efficiency of the dry vacuum pump, ensuring its safety during operation, and extending its service life. However, the following problems still exist: the overall sealing structure is difficult to disassemble and reassemble as needed, and maintenance or repair may be difficult during actual operation. Utility Model Content

[0004] The present invention aims to solve the problems mentioned in the background art by providing an energy-saving sealing structure for a rotor pump.

[0005] The specific technical solution is as follows:

[0006] An energy-saving sealing structure for a rotary pump includes:

[0007] A sealing assembly for sealing a rotor pump includes eight sealing frames, mounting edges, and mounting grooves. One end of each sealing frame has a connecting groove and a mounting hole. The other end of each sealing frame is beveled. Two sealing frames are fixedly connected to each other with bolts via connecting grooves and connecting parts. The inner wall of each sealing frame has a mounting groove, and mounting edges are integrally formed on both inner walls of each sealing frame.

[0008] A sealing plate for mounting a sealing frame includes a base plate, a pad, a first inner liner, a reinforcing layer, and a second inner liner. The surface of the base plate is bolted to the mounting edge. The first inner liner and the second inner liner are sequentially laid inside the base plate, and a reinforcing layer is filled between the first inner liner and the second inner liner.

[0009] In the above-mentioned energy-saving sealing structure, the inclined surfaces of the sealing frame are connected to each other by bolts.

[0010] In the above-mentioned energy-saving sealing structure, one end of the sealing frame is provided with an inner groove, and the inner groove is filled with a sealing filler layer.

[0011] In the above-mentioned energy-saving sealing structure, pads are laid on both inner walls of the substrate, and the pads are an integral structure made of rubber material.

[0012] In the above-mentioned energy-saving sealing structure, the first inner lining layer and the second inner lining layer are both made of dustproof strip material, and the reinforcing layer is made of steel sheet material.

[0013] In the above-mentioned energy-saving sealing structure, the substrate is filled with a pressure-resistant layer on one side of the first inner liner layer and the second inner liner layer, and the pressure-resistant layer is filled with foam material.

[0014] This utility model has the following beneficial effects:

[0015] By optimizing the assembly structure of the sealing structure, each frame is assembled using two sealing frames. During actual operation, the frame at a specific location can be disassembled at any time as needed to achieve targeted maintenance or repair. The overall operation is simple and easy to implement, and has good safety. Attached Figure Description

[0016] Figure 1 A schematic diagram of the sealing structure provided in an embodiment of this utility model;

[0017] Figure 2 A schematic diagram of the sealing frame connection structure provided in an embodiment of this utility model;

[0018] Figure 3 A schematic diagram of the end structure of the sealing frame provided in an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the sealing plate provided in an embodiment of the present utility model.

[0020] In the attached figures: 1. Sealing assembly; 101. Sealing frame; 102. Mounting edge; 103. Mounting groove; 104. Connecting groove; 105. Inner groove; 106. Sealing filler layer; 2. Sealing plate; 201. Base plate; 202. Pad; 203. First inner liner layer; 204. Reinforcing layer; 205. Second inner liner layer; 206. Compression-resistant layer; 3. Connector. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0023] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0024] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example

[0026] The energy-saving sealing structure provided in this embodiment, such as Figures 1-4 As shown, it includes: a sealing assembly 1 for sealing a rotor pump and a sealing plate 2 for mounting a sealing frame 101.

[0027] The sealing assembly 1 is installed between the rotor pump body and the end cover. The sealing assembly 1 includes eight sealing frames 101, mounting edges 102 and mounting grooves 103. One end of the sealing frame 101 is provided with a connecting groove 104 and a mounting hole is provided in the connecting groove 104. The other end of the sealing frame 101 is set as a bevel. Two sealing frames 101 are fixedly connected by connecting grooves 104 and connecting parts and bolts. The inner wall of the sealing frame 101 is provided with a mounting groove 103. Mounting edges 102 are integrally formed on both inner walls of the sealing frame 101.

[0028] The sealing plate 2 for mounting the sealing frame 101 includes a base plate 201, a pad 202, a first inner liner 203, a reinforcing layer 204, and a second inner liner 205. The surface of the base plate 201 is bolted to the mounting edge 102. The first inner liner 203 and the second inner liner 205 are sequentially laid inside the base plate 201. The reinforcing layer 204 is filled between the first inner liner 203 and the second inner liner 205.

[0029] The beveled surfaces of the sealing frame 101 are butted together and fixedly connected by bolts. This creates a good assembly structure between the sealing frames 101. The flat ends are bolted together using connectors and connecting grooves 104, while the beveled ends are assembled using bolts, resulting in a square structure between the sealing frames 101, which is more conducive to subsequent assembly and disassembly.

[0030] In the energy-saving sealing structure using the above technical solution, an inner groove 105 is provided at one end of the sealing frame 101, and the inner groove 105 is filled with a sealing filler layer 106. The additional inner groove 105 structure, filled with a sealing filler layer 106 of a corresponding volume, further enhances the sealing effect of the sealing frame 101.

[0031] Specifically, in this embodiment, pads 202 are laid on both inner walls of the substrate 201. The pads 202 are integral structures made of rubber material. The pad structure 202 can play a role in shock and impact resistance, ensuring the overall strength of the substrate 201 and providing good safety.

[0032] Both the first inner liner layer 203 and the second inner liner layer 205 are made of dustproof strip material, while the reinforcing layer 204 is made of steel sheet material. Further dustproof material is added internally to enhance the overall dustproof sealing effect, and the steel sheet material provides good pressure resistance, ensuring that the substrate 201 is not easily damaged when subjected to external impacts or pressure.

[0033] The substrate 201 is filled with a pressure-resistant layer 206 on one side of the first inner liner layer 203 and the second inner liner layer 205. The pressure-resistant layer 206 is made of foam material. The addition of the pressure-resistant layer 206 provides shock absorption and makes the connection between the substrate 201 and the sealing frame 101 more secure.

[0034] In summary, the energy-saving sealing structure provided in this embodiment has the following advantages:

[0035] In practical use, the sealing frames 101 are spliced ​​together. First, the ends of two sealing frames 101 are bolted together with the connecting parts and the connecting grooves 104. During this process, the sealing filler layer 106 in the inner groove 105 of the end of the sealing frame 101 is also filled, achieving a dustproof effect. This step is repeated until all eight sealing frames 101 are connected in pairs to form four outer frames. At this point, the bevels of each group of sealing frames 101 are joined together and fixed with bolts to form a stable overall frame structure. This allows for the installation of the subsequent sealing plate 2, so that the sealing frames 101 and the sealing plate 2 cooperate to form a sealing structure. In subsequent use, a sealing frame 101 can be removed at any time by unscrewing the bolts as needed, thereby enabling maintenance, replacement, or repair of the structure at specific locations. The overall operation is simple and easy to implement, and has good energy-saving effects.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An energy-saving sealing structure for a rotary pump, characterized in that, include: The sealing assembly (1) for sealing a rotor pump includes eight sealing frames (101), mounting edges (102) and mounting grooves (103). One end of each sealing frame (101) is provided with a connecting groove (104) and a mounting hole is provided in the connecting groove (104). The other end of each sealing frame (101) is set as an inclined surface. Two sealing frames (101) are fixedly connected to each other with bolts through the connecting groove (104) and a connector. The inner wall of each sealing frame (101) is provided with a mounting groove (103). Mounting edges (102) are integrally formed on both inner walls of each sealing frame (101). The sealing plate (2) for mounting the sealing frame (101) includes a base plate (201), a pad (202), a first inner liner (203), a reinforcing layer (204), and a second inner liner (205). The surface of the base plate (201) is bolted to the mounting edge (102). The first inner liner (203) and the second inner liner (205) are sequentially laid inside the base plate (201). The reinforcing layer (204) is filled between the first inner liner (203) and the second inner liner (205).

2. The energy-saving sealing structure according to claim 1, characterized in that, The beveled surfaces of the sealing frame (101) are joined together and fixedly connected by bolts.

3. The energy-saving sealing structure according to claim 2, characterized in that, One end of the sealing frame (101) is provided with an inner groove (105), and the inner groove (105) is filled with a sealing filler layer (106).

4. The energy-saving sealing structure according to claim 1, characterized in that, The substrate (201) has pads (202) laid on both inner walls, and the pads (202) are integral structures made of rubber material.

5. The energy-saving sealing structure according to claim 1, characterized in that, The first inner lining layer (203) and the second inner lining layer (205) are both made of dustproof strip material, and the reinforcing layer (204) is made of steel sheet material.

6. The energy-saving sealing structure according to claim 5, characterized in that, The substrate (201) has a pressure-resistant layer (206) filled on one side of the first inner liner (203) and the second inner liner (205), and the pressure-resistant layer (206) is made of foam material.

Citation Information

Patent Citations

  • Combined sealing structure of dry vacuum pump

    CN221879693U