High-strength plunger pump sealing ring
By using cross-section rectangular spiral strips and metal spring structures in the plunger pump seal ring, and using double-layer aramid black tetrafluoro blended material, the short service life and wear problems of seal ring are solved, and the problem of the seal ring is achieved. Higher sealing performance and safety.
Patent Information
- Application Number
- CN202420546304.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The sealing ring of the plunger pump has a short service life and can cause wear on the plunger during operation.
A high-strength sealing ring design is adopted including a sealing part with a rectangular spiral strip in cross section and a sharp fitting end. The sealing part is equipped with a metal spring structure and a hybrid sealing layer of the outer layer to increase the width and strength of the sealing ring and pass through double Layer aramid black tetrafluoro blended material prevents wear.
Extends the service life of the sealing ring, avoids wear with the plunger, and improves sealing performance and safety.
Smart Images
Figure CN222276908U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealing rings, in particular to a high-strength sealing ring for a plunger pump. Background Art
[0002] The original sealing ring of the plunger pump is a single-layer sealing ring specially used for 3DLN7 / 16\Φ80×60×10\aramid black polytetrafluoroethylene mixed high-pressure pumps. Six sealing rings are used on each plunger at the same time. The sealing ring is prone to tearing and leaking from the joint during use. In order to increase the strength of the sealing ring, a copper ring is added between the two adjacent sealing rings in the later stage. After adding the copper ring, the tearing of the sealing ring is improved, but during operation, the copper ring will cause wear to the plunger, and the service life of the sealing ring and the plunger is only about one week. Summary of the invention
[0003] The technical problem to be solved by the utility model is that the sealing ring of the plunger pump has a short service life and causes wear to the plunger during use.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a high-strength plunger pump sealing ring, including an annular sealing portion and fitting ends arranged at both ends of the sealing portion, the sealing portion includes a spiral strip with a rectangular cross-section, the fitting ends are located at both ends of the spiral strip, and the spiral strip includes an inner ring metal spring structure and a mixed sealing layer attached to the outer layer of the metal spring structure.
[0005] Preferably, two adjacent layers of the spiral strips are tightly fitted.
[0006] Preferably, the mixed sealing layer is a double-layer aramid black polytetrafluoroethylene mixed sealing ring.
[0007] Preferably, the movable end of the fitting end is a sharp end, and the sharp end fits on the end surface of the sealing portion.
[0008] 1. The utility model provides a high-strength plunger pump sealing ring. The sealing ring is spirally arranged to increase the width of the sealing ring. The sealing portion inside the sealing ring adopts a spiral strip structure. Compared with the original annular structure, the strength is higher, thereby extending the service life of the sealing ring.
[0009] 2. The outer structure of the sealing ring adopts a double-layer aramid black polytetrafluoroethylene mixed form. During the use of the sealing ring, there will be no wear and tear with the plunger, ensuring the safe use of the plunger pump. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0011] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.
[0012] Figure 2 It is the front view of the embodiment of the utility model.
[0013] In the figure: 1, sealing part; 2, fitting end. DETAILED DESCRIPTION
[0014] like Figure 1 and Figure 2 The utility model provides a high-strength plunger pump sealing ring, comprising an annular sealing portion 1 and fitting ends 2 arranged at both ends of the sealing portion 1, the sealing portion 1 comprises a spiral strip with a rectangular cross section, the fitting ends 2 are located at both ends of the spiral strip, and the spiral strip comprises an inner ring metal spring structure and a mixed-woven sealing layer attached to the outer layer of the metal spring structure.
[0015] The metal spring structure is used as the inner layer to ensure the strength of the sealing ring structure. At the same time, the pitch of the metal spring structure is set. After the outer layer of the metal spring structure is covered with a mixed sealing layer, the thickness is increased by the mixed sealing layer, so that adjacent circles of the metal spring structure can be tightly squeezed to eliminate leakage in the gap.
[0016] A mixed-woven sealing layer is arranged on the metal spring structure, and a mixed-woven sealing layer is also arranged on the inner side of the metal spring structure. When the sealing ring is installed, the mixed-woven sealing layer on the inner side of the metal spring structure is compressed to achieve the sealing effect of the sealing ring.
[0017] like Figure 1 and Figure 2 As shown. The two adjacent layers of the spiral strip fit tightly together. When arranging the mixed-woven sealing layer, the thickness of the mixed-woven sealing layer is set to be greater than half of the pitch of the metal spring structure, so that after molding, the mixed-woven sealing layer between two adjacent circles of the metal spring structure is in a compressed state, making the sealing ring more integrated and enhancing the sealing performance of the sealing ring.
[0018] As a preferred embodiment of the utility model, in order to increase the strength of the sealing ring, the mixed-woven sealing layer is a double-layer aramid black polytetrafluoroethylene mixed-woven sealing ring.
[0019] like Figure 1 and Figure 2 As shown. The movable end of the fitting end 2 is a sharp end, and the sharp end fits on the end surface of the sealing part 1. After the fitting end 2 is cut, the movable end of the fitting end 2 becomes a sharp end. The sharp end formed after the cutting reduces the exposed part of the fitting end 2 relative to the sealing part 1 while ensuring the fit with the sealing part 1, which can prevent the exposed part of the sealing ring from bending during long-term use, thereby affecting the sealing of the sealing ring.
Claims
1. A high-strength plunger pump sealing ring, characterized in that: The invention comprises an annular sealing portion (1) and fitting ends (2) arranged at both ends of the sealing portion (1); the sealing portion (1) comprises a spiral strip having a rectangular cross section; the fitting ends (2) are located at both ends of the spiral strip; and the spiral strip comprises an inner ring metal spring structure and a mixed-woven sealing layer attached to the outer layer of the metal spring structure.
2. A high-strength plunger pump seal ring as claimed in claim 1, characterized in that: The two adjacent layers of the spiral strips are tightly fitted.
3. A high-strength plunger pump sealing ring as claimed in claim 1, characterized in that: The mixed sealing layer is a double-layer aramid black polytetrafluoroethylene mixed sealing ring.
4. A high-strength plunger pump seal ring as claimed in claim 1, characterized in that: The movable end of the fitting end (2) is a sharp end, and the sharp end fits on the end surface of the sealing portion (1).