CN102080725A

CN102080725A - Intelligent wrapped C-shaped sealing ring

Info

Publication number: CN102080725A
Application number: CN2011100343258A
Authority: CN
Inventors: 励行根; 宋炜
Original assignee: NINGBO TIANSHENG SEALING PACKING CO Ltd
Current assignee: NINGBO TIANSHENG SEALING PACKING CO Ltd
Priority date: 2011-02-01
Filing date: 2011-02-01
Publication date: 2011-06-01

Abstract

The invention relates to an intelligent wrapped C-shaped sealing ring which comprises a first ring, a second ring and a spring in the second ring, wherein a cross section of the first ring is in a C shape, the first ring is arranged at the outermost side of the sealing ring, a cross section of the second ring is in a C shape, the second ring is tightly wrapped by the first ring, the spring is tightly wrapped by the second ring, a sensor is embedded in the second ring, and the external of the second ring is connected with a computer to form an intelligent sealing device which can monitor the working conditions of the C-shaped sealing ring at any time.

Description

A kind of intelligence coats the C V-shaped ring

Technical field

The present invention relates to the Sealing in the pressurized container under a kind of important events, especially the cladding sealing ring that uses in high temperature, high pressure vessel and the voltage stabilizer.

Background technique

C shape ring is generally used for high temperature, high-pressure working condition condition, and these operating modes often have strict demand to the sealability of C shape ring, such as the sealing of pressure vessels top cover in the nuclear power station; In these occasions, in time understand imminent leak-down rate situation, make the leakage situation in the monitoring state all the time; In time find to be about to the leakage that produces, the prevention of accident is played an important role; And adopt at present: the solid torus pad, spirotallic gasket, grooved metal gasket, turbine pad etc. does not all have this function.

Therefore the invention provides a kind of intelligence and coat the C V-shaped ring,, make seal ring in the monitoring state at any time, can be in which kind of leak condition by anticipation grasp seal ring, whether meet design requirement by built-in sensor.

Summary of the invention

The invention provides a kind of intelligence and coat the C V-shaped ring, this gasket seal is by the residing temperature of sensor measurement pad, pressure and deformation, can understand the important performance characteristic of pad at any time by measuring these indexs: compressibility, rebound degree, creep relaxation and stress relaxation rate, make gasket seal in the monitoring state at any time, by understanding compressibility, rebound degree, creep relaxation and stress relaxation rate parameter, whether which kind of leak condition analysis and anticipation pad are in, meet design requirement.

The purpose of this invention is to provide the intellectuality that realizes the C V-shaped ring, the cooperation by conventional spacers and sensor, computer makes this C V-shaped ring become controlled pad, makes the sealability of C V-shaped ring in the monitoring state at any time.

This C V-shaped ring comprises: 1, first ring, and described first ring is positioned at the outermost of seal ring, and its cross section is c-shaped; Second ring, the described second ring outside is closely coated by described first ring, and its cross section is c-shaped; Two rings link into an integrated entity and week one circumferential openings are arranged laterally along ring; Second ring contains spring; 2, sensor, this sensor can be measured the deformation of the residing temperature of pad, pressure and generation and these data are transmitted; 3, computer: the data that the Computer Analysis sensor spreads out of, draw these important gasket performance desired values of compressibility, rebound degree, creep relaxation and stress relaxation rate, and these desired values are analyzed, draw conclusion and the working state technical order in following a period of time of anticipation that whether the C V-shaped ring is in the working state that meets design requirement.

The seal ring of forming by above content, but the leak-down rate of C V-shaped ring is under the monitor state all the time.

Description of drawings

According to following description and accompanying drawing, can understand the present invention well, these accompanying drawings have shown non-restrictive example of the present invention.More particularly, in the accompanying drawings:

Be further detailed below in conjunction with example:

Fig. 1 is the axial section of pressurized container, contains the sealing of embodiments of the invention junction point between pressure container cylinder flange and top cover flange.

Fig. 2 is the sectional view of the annular sealing ring of the embodiment of the invention shown in Fig. 1.

1 first ring, 2 second rings, 3 metal springs, 4 sensors, 5 computers

6 flanges, 7 ozzles, 8 top covers, 9 pressurized container supporting surfaces, 10 ring segments, 11 guiding devices, 12 shells

Embodiment

Shown in Figure 1 is the pressurized container of high temperature, pressure coolant, cylindrical shell 12 is welded with freezing mixture by the flange 6 of a strap bolt tapped hole, one and imports and exports the ring segment 10 of ozzle 7, a changeover portion and a semicircle lower seal head and be welded, wherein top cover 8 is hot pressed into semicircle by steel plate, be drilled with bolt hole at upper flange 6 upper peripheries, have on its supporting surface and place groove of the present invention.When high temperature, pressure coolant flow in pressurized container, wherein some inwall along pressurized container directly flows to the pressure vessel outlet adapter, and follow the variation of temperature and pressure, because pressure vessels top cover and shell flange are two independent parts of making, in pressurized container, must be assembled together and will guarantee high leak tightness, internal pressure will be far longer than the external pressure at pressurized container place during the pressurized container operation, for preventing that freezing mixture from leaking, an intelligence is installed between pressure container cylinder and top cover coats the C V-shaped ring.

Junction point will bear in the course of the work between pressure container cylinder and the top cover, expansion that hot coolant produces and contraction and the radial and axial STRESS VARIATION that causes, this variation is very easy to produce and leaks, and still the initial stage of this leakage can't be detected, and when begins leakage and unclear; The present invention is the leakage situation with a kind of simply and effectively design detecting and anticipation seal arrangement.

By sectional view shown in Fig. 2, the present invention is able to clearer and more definite description.This intelligence C V-shaped ring is made up of five parts, comprises 1 first ring, 2 second rings, 3 metal springs, 4 sensors, 5 computers

As seen, the present invention more specifically is provided with sensor 4 in the C V-shaped ring, and sensor is outside to be connected with computer 5.

In preferred embodiment, the built-in sensor of C V-shaped ring can be measured temperature, pressure and the pad of C V-shaped ring working environment of living in itself under C V-shaped ring working state deformation, these parameters transfer data to computer by sensor, computer is analyzed these data, draws conclusion and the working state in following a period of time of anticipation that whether the C V-shaped ring is in the working state that meets design requirement.

Should be appreciated that the example that accompanying drawing has only shown to be provided via practical demonstration of the present invention, can change its form and configuration, but can not break away from the scope of the design that the present invention is based on.Any reference mark that provides in subsidiary claims is that specification and accompanying drawing are read for ease of reference purely, and they do not limit the protection domain of being represented by claim.

Claims

1. an intelligence coats the C V-shaped ring, and it comprises:

First ring, described first ring is positioned at the outermost of seal ring, and its cross section is c-shaped;

Second ring, the described second ring outside is closely coated by described first ring, and its cross section is c-shaped;

Above-mentioned two rings link into an integrated entity and week one circumferential openings are arranged laterally along ring; Second ring contains spring and sensor, and sensor is connected with outer computer;

It is characterized in that:

In time understand important parameter-temperature, pressure, the deformation of this cladding sealing ring, and then measure the important performance characteristic of pad: compressibility, rebound degree, creep relaxation and stress relaxation rate, make gasket seal in the monitoring state at any time, by understanding compressibility, rebound degree, creep relaxation and stress relaxation rate parameter, analyze pad and be in which kind of leak condition, whether meet design requirement.

2. seal ring according to claim 1 is characterized in that: this coating pad has built-in sensors.

3. seal ring according to claim 1 is characterized in that: this sensor can be measured the stress relaxation rate of gasket seal.

4. according to claim 1,2,3 described seal rings, it is characterized in that: sensor is connected with outer computer, can detect important parameter-temperature, pressure, the deformation of gasket seal in real time, and then measure the important performance characteristic of pad: compressibility, rebound degree, creep relaxation and stress relaxation rate, make gasket seal in the monitoring state at any time, by understanding compressibility, rebound degree, creep relaxation and stress relaxation rate parameter, analyze pad and be in which kind of leak condition, whether meet design requirement.