CN214888863U

CN214888863U - Novel combined plunger sealing element of high-pressure homogenizer

Info

Publication number: CN214888863U
Application number: CN202121399723.5U
Authority: CN
Inventors: 熊进波; 李向阳; 凌然
Original assignee: Shanghai Jianuo Sealing Technology Co ltd
Current assignee: Shanghai Jianuo Sealing Technology Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-11-26
Anticipated expiration: 2031-06-23

Abstract

The utility model provides a novel combined plunger sealing element of a high-pressure homogenizer, which comprises a first sealing ring, a second sealing ring and a third sealing ring; the first sealing ring is connected with the second sealing ring, and the second sealing ring is connected with the third sealing ring; the first sealing ring is a universal plug ring, a spring is arranged in the first sealing ring, and silica gel is arranged in the first sealing ring; the second sealing ring is a V-shaped ring and is arranged at one end of the first sealing ring, which is far away from the spring; the third sealing ring is a check ring and is arranged at one end of the second sealing ring, which is far away from the spring; through adopting general stopper ring, "V" type circle and retaining ring combination, satisfying under the high-temperature and high-pressure resistant circumstances, can also play good sealed effect under the reciprocal operating mode of high frequency.

Description

Novel combined plunger sealing element of high-pressure homogenizer

Technical Field

The utility model relates to a sealed field, concretely relates to novel combination plunger sealing member of high-pressure homogenizer.

Background

The high-pressure homogenizer is also called as a high-pressure fluid nanometer homogenizer, and can enable materials in a suspension state to flow through a containing cavity (a high-pressure homogenizing cavity) with a special internal structure at a high speed under the action of ultrahigh pressure (up to 60000psi), so that the materials are subjected to a series of changes of physical, chemical, structural properties and the like, and finally the homogenization effect is achieved. The high-pressure homogenizing machine is mainly used in the industries of biology, medicine, food, chemical engineering and the like to carry out cell disruption, drink homogenization, fine chemical engineering and prepare products such as liposome, fat emulsion, nano suspension, micro emulsion, lipid microsphere, emulsion, dairy product, infusion solution, dye, solar panel coating, conductive coating and the like.

The inventor of the utility model finds that the plunger sealing element of the high-pressure homogenizer is the combined sealing of the O-shaped ring and the ultra-high molecular weight polyethylene slip ring which are usually adopted. Plunger seal of high pressure homogenizer can make "O" type circle ageing under high temperature for the elasticity of "O" type circle loses, leads to sealed the inefficacy at last, still can cause the residue of detaining because of ageing, has the risk of polluting the medium. Therefore, it is necessary to develop a new combination plunger seal for a high pressure homogenizer.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem, provide high-pressure homogenizer's novel combination plunger sealing member, through adopting general stopper ring, "V" type circle and retaining ring combination, satisfying under the highly compressed condition of high temperature resistant, can also play good sealed effect under the reciprocal operating mode of high frequency.

In order to achieve the purpose, the utility model adopts the following technical scheme.

The novel combined plunger sealing element of the high-pressure homogenizer comprises a first sealing ring, a second sealing ring and a third sealing ring; the first sealing ring is connected with the second sealing ring, and the second sealing ring is connected with the third sealing ring; the first sealing ring is a universal plug ring, a spring is arranged in the first sealing ring, and silica gel is arranged in the first sealing ring; the second sealing ring is a V-shaped ring and is arranged at one end of the first sealing ring, which is far away from the spring; the third sealing ring is a check ring, and the third sealing ring is arranged at one end, far away from the spring, of the second sealing ring.

Furthermore, the first sealing ring is made of polytetrafluoroethylene and polyphenyl resin.

Furthermore, the second sealing ring is made of polytetrafluoroethylene parts and polyphenyl resin parts.

Further, the third sealing ring is made of a polyether-ether-ketone part.

Further, the thickness of the first sealing ring is 13-15 mm.

Further, the thickness of the first sealing ring is 14 millimeters.

Further, the thickness of the second sealing ring is 3 to 5 millimeters.

Further, the thickness of the second sealing ring is 4.2 millimeters.

Further, the thickness of the third sealing ring is 5 to 7 millimeters.

Further, the thickness of third sealing washer is 5.5 millimeters.

The utility model discloses high-pressure homogenizer's novel combination plunger sealing member's positive effect is:

the utility model discloses an adopt general stopper ring, "V" type circle and retaining ring combination, satisfying under the highly compressed condition of high temperature resistant, can also play good sealed effect under the reciprocal operating mode of high frequency. Meanwhile, the first sealing ring and the second sealing ring are made of polytetrafluoroethylene parts and polyphenyl resin parts, so that the FDA food-grade detection requirements of industries such as biology, medicine and food can be met.

Drawings

Fig. 1 is a schematic diagram provided by an embodiment of the present invention.

The reference numerals in the figures are respectively:

1. a first seal ring; 2. a second seal ring; 3. a third seal ring; 4. a spring; 5. silica gel.

Detailed Description

The following provides specific embodiments of the novel combined plunger seal for a high-pressure homogenizer according to the present invention, but it should be noted that: the described embodiments are not intended to limit the practice of the invention. All adopt the utility model discloses a similar structure and similar change all should go into the utility model discloses a protection scope. The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the embodiments, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.

See fig. 1. The novel combined plunger sealing element of the high-pressure homogenizer comprises a first sealing ring 1, a second sealing ring 2 and a third sealing ring 3; the first sealing ring 1 is connected with the second sealing ring 2, and the second sealing ring 2 is connected with the third sealing ring 3; the first sealing ring 1 is a universal plug ring, a spring 4 is arranged in the first sealing ring 1, and silica gel 5 is arranged in the first sealing ring 1; the second sealing ring 2 is a V-shaped ring, and the second sealing ring 2 is arranged at one end of the first sealing ring 1, which is far away from the spring 4; the third sealing ring 3 is a check ring, and the third sealing ring 3 is arranged at one end, far away from the spring 4, of the second sealing ring 2.

The first sealing ring 1 is made of polytetrafluoroethylene and polyphenyl resin. The second sealing ring 2 is made of polytetrafluoroethylene and polyphenyl resin. And the third sealing ring 3 is a polyether-ether-ketone part.

The thickness of the first sealing ring 1 is 13 to 15 mm, and in this embodiment, the thickness of the first sealing ring 1 is 14 mm. The outer diameter of the first seal ring 1 is 43 to 47 mm, and the inner diameter is 26 to 30 mm, in this embodiment, the outer diameter of the first seal ring 1 is 45 mm, and the inner diameter is 28 mm. The thickness of the second sealing ring 2 is 3 to 5 mm, and in this embodiment, the thickness of the second sealing ring 2 is 4.2 mm. The outer diameter of the first seal ring 1 is 43 to 44 mm, and the inner diameter is 29 to 30 mm, in this embodiment, the outer diameter of the first seal ring 1 is 43.5 mm, and the inner diameter is 29.7 mm. The thickness of the third sealing ring 3 is 5 to 7 mm, and in this embodiment, the thickness of the third sealing ring 3 is 5.5 mm. The outer diameter of the first seal ring 1 is 43 to 43.5 mm, and the inner diameter is 29.5 to 30 mm, in this embodiment, the outer diameter of the first seal ring 1 is 43.02 mm, and the inner diameter is 29.9 mm.

In order to meet the application conditions: the food FDA requires high pressure of 100MPa and high temperature of 130 ℃ and 0.2 m/s. The novel combined plunger sealing element of the high-pressure homogenizer comprises three parts, namely a first sealing ring 1, a second sealing ring 2 and a third sealing ring 3, namely a universal plug ring, a V-shaped ring and a check ring, wherein the first sealing ring 1 is made of polytetrafluoroethylene and polyphenyl ester materials, and a spring 4 is filled with silica gel 5. The first seal ring 1 serves as a main seal and can bear system impact of high temperature and high pressure. The second sealing ring 2 is made of polytetrafluoroethylene and polyphenyl grease, the second sealing ring 2 serves as an auxiliary seal, and the auxiliary sealing function can be achieved under the condition that the main sealing first sealing ring 1 leaks. The material of third sealing washer 3 selects the polyetheretherketone material, possess high-modulus high temperature resistance excellent performance, plays the effect of retaining ring, prevents that main seal and secondary seal from extruding under the high pressure, and less clearance design, the retaining ring can also play the guide effect, prevents direct contact between plunger and the metal hardware. The novel combined plunger sealing piece of the whole high-pressure homogenizer is an innovative design aiming at the high-pressure high-frequency reciprocating application working condition from material selection, sealing form and combined configuration.

According to the technical scheme, the design of a product is assisted by simulating the shrinkage change of the shell under the conditions of sealing assembly and high temperature and the stress distribution of sealing after pressing through finite element analysis (FER) initial model simulation. After the sealing design is finished, the pressure test is installed, and the service life is prolonged by one time.

Claims

1. The novel combined plunger piston sealing element of the high-pressure homogenizer is characterized by comprising a first sealing ring, a second sealing ring and a third sealing ring; the first sealing ring is connected with the second sealing ring, and the second sealing ring is connected with the third sealing ring; the first sealing ring is a universal plug ring, a spring is arranged in the first sealing ring, and silica gel is arranged in the first sealing ring; the second sealing ring is a V-shaped ring and is arranged at one end of the first sealing ring, which is far away from the spring; the third sealing ring is a check ring, and the third sealing ring is arranged at one end, far away from the spring, of the second sealing ring.

2. The novel combined plunger seal of a high-pressure homogenizer of claim 1, wherein the first seal ring is made of polytetrafluoroethylene or polyphenylene resin.

3. The novel combined plunger seal of a high-pressure homogenizer of claim 1, wherein the second seal ring is made of polytetrafluoroethylene or polyphenylene resin.

4. The new combination plunger seal of high pressure homogenizer of claim 1, wherein said third sealing ring is of polyetheretherketone.

5. The new combination plunger seal of a high pressure homogenizer according to claim 1, wherein the thickness of the first seal ring is 13 to 15 mm.

6. The novel composite plunger seal of a high pressure homogenizer of claim 1, wherein the first seal ring has a thickness of 14 mm.

7. The novel composite plunger seal of a high pressure homogenizer of claim 1, wherein the thickness of the second seal ring is 3 to 5 mm.

8. The new combination plunger seal of a high pressure homogenizer according to claim 1, wherein the thickness of the second seal ring is 4.2 mm.

9. The new combination plunger seal of a high pressure homogenizer according to claim 1, wherein the thickness of the third seal ring is 5 to 7 mm.

10. The new combination plunger seal of a high pressure homogenizer according to claim 1, wherein the third seal ring has a thickness of 5.5 mm.