CN105865718B - A kind of sealing performance experimental provision of sealing structure - Google Patents

A kind of sealing performance experimental provision of sealing structure Download PDF

Info

Publication number
CN105865718B
CN105865718B CN201610182315.1A CN201610182315A CN105865718B CN 105865718 B CN105865718 B CN 105865718B CN 201610182315 A CN201610182315 A CN 201610182315A CN 105865718 B CN105865718 B CN 105865718B
Authority
CN
China
Prior art keywords
pressure
sealing
reserve tank
regulator valve
fuel reserve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610182315.1A
Other languages
Chinese (zh)
Other versions
CN105865718A (en
Inventor
丁晓宇
张飞凯
刘检华
刘少丽
杨志猛
巩浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Institute of Technology BIT
Original Assignee
Beijing Institute of Technology BIT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Institute of Technology BIT filed Critical Beijing Institute of Technology BIT
Priority to CN201610182315.1A priority Critical patent/CN105865718B/en
Publication of CN105865718A publication Critical patent/CN105865718A/en
Application granted granted Critical
Publication of CN105865718B publication Critical patent/CN105865718B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum

Abstract

The present invention provides a kind of sealing performance experimental provisions of sealing structure, are related to mechanical engineering technical field, solve the problem of that the experiment porch that existing some investigators build is expensive with security risk, which includes: high pressure gas output mechanism;Pressure regulating device;Fuel reserve tank stores hydraulic seal medium in fuel reserve tank;Switching tooling, switching tooling have a seal cavity connecting with fuel reserve tank, and seal cavity has the hatch frame matched with static seal structure to be measured, and static seal structure to be measured is cooperatively connected by hatch frame and seal cavity;High pressure gas output mechanism exports the gas of the first pressure to pressure regulating device, and pressure regulating device exports the gas that the gas regulation of the first pressure is the second pressure to fuel reserve tank, so that the hydraulic seal medium in fuel reserve tank is pressed into seal cavity.The solution of the present invention can accurately measure the sealing performance of static seal structure, can quickly assemble, low in cost, securely and reliably.

Description

A kind of sealing performance experimental provision of sealing structure
Technical field
The present invention relates to mechanical engineering technical field, in particular to the sealing performance experimental provision of a kind of sealing structure.
Background technique
Static seal structure is widely used in engineering, the traffic such as closely bound up automobile, aircraft of either living with people Machinery, the aerospace for still representing Environment Science is mechanical, all largely uses plane static seal structure.And the mistake of plane static seal Effect often brings huge security risk, economic loss and environmental pollution.In order to guarantee the sealing performance of static seal structure, greatly Amount scholar carries out experimental study to it, probes into the influence factor of sealing structure sealing performance.
Although experimental study has very big advantage in the research and application of static seal structure, mentioned for experimental study It is less for the static seal structure sealing performance experimental apparatus for testing of support.Most researchers are the experiments oneself built Platform, some experiment porch are expensive, and some have that performance is unstable even with security risk.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of sealing performance experimental provisions of sealing structure, solve existing skill Lack the experimental provision to the test of static seal structure sealing performance, and the experiment porch valence that some investigators oneself build in art Lattice are expensive, or even have the problem of security risk.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of sealing performance experimental provision of sealing structure, Include:
High pressure gas output mechanism;
The pressure regulating device being connect with the high pressure gas output mechanism;
The fuel reserve tank connecting with the pressure regulating device stores hydraulic seal medium in the fuel reserve tank;
Switching tooling, the switching tooling have a seal cavity connecting with the fuel reserve tank, the seal cavity tool There is the hatch frame matched with static seal structure to be measured, the static seal structure to be measured passes through the hatch frame and institute State seal cavity mating connection;
The high pressure gas output mechanism exports the gas of the first pressure to the pressure regulating device, and the pressure regulating device is by institute It states the gas regulation of the first pressure to export for the gas of the second pressure to the fuel reserve tank, so that the liquid in the fuel reserve tank is close Envelope medium is pressed into the seal cavity of the switching tooling.
Wherein, the pressure regulating device includes: the first pressure regulator valve and the second pressure regulator valve for connecting with first pressure regulator valve;
The one end of first pressure regulator valve far from second pressure regulator valve is connect with the high pressure gas output mechanism, described Second pressure regulator valve is connect far from one end of first pressure regulator valve with the fuel reserve tank.
Wherein, the range of regulation of first pressure regulator valve is greater than the range of regulation of second pressure regulator valve.
Wherein, the regulation precision of second pressure regulator valve is greater than the regulation precision of first pressure regulator valve.
Wherein, the high pressure gas output mechanism includes high-pressure nitrogen bottle.
Wherein, the hydraulic seal medium is water, lubricating oil, hydraulic oil, gasoline or alcohol.
Wherein, it is connected between the pressure regulating device and the fuel reserve tank by hose and quick coupling.
Wherein, it is connected between the fuel reserve tank and the switching tooling by hose and quick coupling.
Wherein, it is connected between the pressure regulating device and the high pressure gas output mechanism by hose and quick coupling.
Wherein, it is connected between first pressure regulator valve and second pressure regulator valve by hose and quick coupling.
The advantageous effects of the above technical solutions of the present invention are as follows:
The sealing performance experimental provision of the sealing structure of the embodiment of the present invention, comprising: high pressure gas output mechanism;With high pressure The pressure regulating device of gas output mechanism connection;The fuel reserve tank connecting with pressure regulating device stores hydraulic seal medium in fuel reserve tank; Switching tooling, switching tooling have a seal cavity connecting with fuel reserve tank, and seal cavity has and static seal structure to be measured The hatch frame matched, static seal structure to be measured are assembled in seal cavity by hatch frame;High pressure gas exports machine Structure exports the gas of the first pressure to pressure regulating device, and pressure regulating device is defeated by the gas that the gas regulation of the first pressure is the second pressure Out to fuel reserve tank, so that the hydraulic seal medium in fuel reserve tank is pressed into the seal cavity of switching tooling.Pass through detection opening The amount of leakage of hydraulic seal medium at structure can accurately measure the sealing performance of static seal structure.The device has can be fast Speed assembling, advantage low in cost and safe and reliable can be used by most of static seal structure sealing performance experiment, be solved It has determined the experimental provision lacked in the prior art to the test of static seal structure sealing performance, and what some investigators oneself built Experiment porch is expensive, or even has the problem of security risk.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the sealing performance experimental provision of sealing structure of the present invention.
Description of symbols:
1- high pressure gas output mechanism, 2- pressure regulating device, the first pressure reducing valve of 21-, the second pressure reducing valve of 22-, 3- fuel reserve tank, 4- Hydraulic seal medium, 5- switching tooling, 6- static seal structure to be measured, 61- hollow bolt, 62- gasket, 63- swivel joint.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool Body embodiment is described in detail.
As shown in Figure 1, the sealing performance experimental provision of the sealing structure of the embodiment of the present invention, comprising:
High pressure gas output mechanism 1;
The pressure regulating device 2 being connect with the high pressure gas output mechanism 1;
The fuel reserve tank 3 connecting with the pressure regulating device 2 stores hydraulic seal medium 4 in the fuel reserve tank 3;
Switching tooling 5, the switching tooling 5 have a seal cavity connecting with the fuel reserve tank 3, the seal cavity With the hatch frame matched with static seal structure 6 to be measured, the static seal structure 6 to be measured passes through the hatch frame It is cooperatively connected with the seal cavity;
The high pressure gas output mechanism 1 exports the gas of the first pressure, the pressure regulating device 2 to the pressure regulating device 2 The gas that the gas regulation of first pressure is the second pressure is exported to the fuel reserve tank 3, so that in the fuel reserve tank 3 Hydraulic seal medium 4 is pressed into the seal cavity of the switching tooling 5.
The sealing performance experimental provision of the sealing structure of the embodiment of the present invention is situated between by hydraulic seal at detection opening structure The amount of leakage of matter 4 can accurately measure the sealing performance of static seal structure.The device has and can quickly assemble, low in cost, And safe and reliable advantage, it can be used by most of static seal structure sealing performance experiment, solve and lack in the prior art Few experimental provision that static seal structure sealing performance is tested, and the experiment porch price that some investigators oneself build is high It is expensive, or even there is the problem of security risk.
Specifically, can detect the volume or quality of leak liquid at hatch frame, to observe under different assembly pretightening power Static seal structure leakage rate.
Preferably, the pressure regulating device 2 includes: the first pressure regulator valve 21 and the second tune connecting with first pressure regulator valve 21 Pressure valve 22;
The one end of first pressure regulator valve 21 far from second pressure regulator valve 22 and the high pressure gas output mechanism 1 connect It connects, the one end of second pressure regulator valve 22 far from first pressure regulator valve 21 is connect with the fuel reserve tank 3.
At this point, the output of pressure can be precisely controlled by two pressure regulator valve mating reactions.
Preferably, the range of regulation of first pressure regulator valve 21 is greater than the range of regulation of second pressure regulator valve 22.It is described The regulation precision of second pressure regulator valve 22 is greater than the regulation precision of first pressure regulator valve 21.
At this point, two pressure regulator valves select respectively range of regulation it is wide and regulation precision it is high, further can accurately control The output of pressing pressure, facilitates adjusting and use.
Preferably, the high pressure gas output mechanism 1 includes high-pressure nitrogen bottle.
The pressure of general static seal structure sealing medium is smaller, and Chang Wei 1MPa is hereinafter, and the pressure of high-pressure nitrogen bottle can Up to 15MPa, have the ability entirely to test and providing enough pressure.It is mentioned relative to air compressor (maximum is generally 0.8MPa) etc. For the equipment of pressure, high-pressure nitrogen bottle is capable of providing large range of pressure.Meanwhile high-pressure nitrogen bottle does not need electric power etc. Energy input, is used conveniently and safely and its is cheap, and purchase and aerating are convenient.
At this point, by using high-pressure nitrogen bottle enough and large range of pressure, user can be provided for entire experiment Just safe and cheap.
Specifically, the hydraulic seal medium 4 can be water, lubricating oil, hydraulic oil, gasoline or alcohol.
Certainly, aforesaid liquid sealing medium is only for example, other have the liquid for not corroding experiment equipment performance Sealing medium can also apply in the present invention, not illustrate one by one herein.
Preferably, it is connected between the pressure regulating device 2 and the fuel reserve tank 3 by hose and quick coupling.The oil storage It is connected between case 3 and the switching tooling 5 also by hose and quick coupling.
Likewise, being connected between the pressure regulating device 2 and the high pressure gas output mechanism 1 by hose and quick coupling It connects.It is connected between first pressure regulator valve 21 and second pressure regulator valve 22 also by hose and quick coupling.
At this point, can be realized quickly changeing between equipment by hose and crossover sub, assembly and disassembly are facilitated.
Further, since the device of the embodiment of the present invention is for measuring static seal structure sealing performance, so quiet Too big fluid flow is not needed at sealing structure, therefore the volume of fuel reserve tank 3 does not need too greatly, to leak according to sealing structure Rate 1e-3Ml/s is calculated, and when continuous work primary experiment is 8 hours a length of, then the volume that continuous work once leaks is 0.0288L, in order to guarantee going on smoothly for experiment, it is preferred that the volume of the fuel reserve tank 3 can be 1-2L.
Certainly, for different sealing leak rate requirements, larger or smaller leakage rate can be generated, then is needed using not The fuel reserve tank of same specification, does not illustrate one by one herein.
For detecting hollow bolt sealing structure, the device of the embodiment of the present invention is as shown in Figure 1, the device is by passing through High-pressure nitrogen bottle, the first pressure regulator valve 21, the second pressure regulator valve 22, fuel reserve tank 3, switching tooling 5 and the sky that hose, quick coupling connect Heart bolt sealing structure composition.Lubricating oil is stored in fuel reserve tank 3.Hollow bolt sealing structure includes hollow bolt 61, pad Piece 62 and swivel joint 63.The high pressure nitrogen exported in high-pressure nitrogen bottle is depressurized through two pressure regulator valves, will stablize the nitrogen of pressure Gas is input to fuel reserve tank 3, and passes through fuel reserve tank 3, and the lubricating oil of high pressure is squeezed into switching tooling 5 and hollow bolt sealing structure. By measuring the volume or quality of leak liquid, the hollow bolt sealing structure that can be observed under different assembly pretightening power is let out Dew rate.
To sum up, the sealing performance experimental provision of the sealing structure of the embodiment of the present invention passes through liquid at detection opening structure The amount of leakage of sealing medium can accurately measure the sealing performance of static seal structure.It is low in cost with can quickly assemble, And safe and reliable advantage, it can be used by most of static seal structure sealing performance experiment, solve and lack in the prior art Few experimental provision that static seal structure sealing performance is tested, and the experiment porch price that some investigators oneself build is high It is expensive, or even there is the problem of security risk.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (10)

1. a kind of sealing performance experimental provision of sealing structure characterized by comprising
High pressure gas output mechanism;
The pressure regulating device being connect with the high pressure gas output mechanism;
The fuel reserve tank connecting with the pressure regulating device stores hydraulic seal medium in the fuel reserve tank;
Switching tooling, the switching tooling have a seal cavity being connect with the fuel reserve tank, the seal cavity with The hatch frame that static seal structure to be measured matches, the static seal structure to be measured by the hatch frame with it is described close It seals cavity to be cooperatively connected, by the volume or quality of leak liquid sealing medium at detection opening structure, to observe different dresses Leakage rate with the static seal structure to be measured under pretightning force;
The high pressure gas output mechanism exports the gas of the first pressure to the pressure regulating device, and the pressure regulating device is by described the The gas regulation of one pressure is that the gas of the second pressure is exported to the fuel reserve tank, so that the hydraulic seal in the fuel reserve tank is situated between Matter is pressed into the seal cavity of the switching tooling.
2. the sealing performance experimental provision of sealing structure according to claim 1, which is characterized in that the pressure regulating device packet It includes: the first pressure regulator valve and the second pressure regulator valve being connect with first pressure regulator valve;
The one end of first pressure regulator valve far from second pressure regulator valve is connect with the high pressure gas output mechanism, and described second Pressure regulator valve is connect far from one end of first pressure regulator valve with the fuel reserve tank.
3. the sealing performance experimental provision of sealing structure according to claim 2, which is characterized in that first pressure regulator valve Range of regulation be greater than second pressure regulator valve range of regulation.
4. the sealing performance experimental provision of sealing structure according to claim 2, which is characterized in that second pressure regulator valve Regulation precision be greater than first pressure regulator valve regulation precision.
5. the sealing performance experimental provision of sealing structure according to claim 1, which is characterized in that the high pressure gas is defeated Mechanism includes high-pressure nitrogen bottle out.
6. the sealing performance experimental provision of sealing structure according to claim 1, which is characterized in that the hydraulic seal is situated between Matter is water, lubricating oil, hydraulic oil, gasoline or alcohol.
7. the sealing performance experimental provision of sealing structure according to claim 1, which is characterized in that the pressure regulating device with It is connected by hose with quick coupling between the fuel reserve tank.
8. the sealing performance experimental provision of sealing structure according to claim 1, which is characterized in that the fuel reserve tank and institute It states and is connected by hose with quick coupling between switching tooling.
9. the sealing performance experimental provision of sealing structure according to claim 1, which is characterized in that the pressure regulating device with It is connected by hose with quick coupling between the high pressure gas output mechanism.
10. the sealing performance experimental provision of sealing structure according to claim 2, which is characterized in that first pressure regulation It is connected between valve and second pressure regulator valve by hose and quick coupling.
CN201610182315.1A 2016-03-28 2016-03-28 A kind of sealing performance experimental provision of sealing structure Active CN105865718B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610182315.1A CN105865718B (en) 2016-03-28 2016-03-28 A kind of sealing performance experimental provision of sealing structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610182315.1A CN105865718B (en) 2016-03-28 2016-03-28 A kind of sealing performance experimental provision of sealing structure

Publications (2)

Publication Number Publication Date
CN105865718A CN105865718A (en) 2016-08-17
CN105865718B true CN105865718B (en) 2019-09-27

Family

ID=56626056

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610182315.1A Active CN105865718B (en) 2016-03-28 2016-03-28 A kind of sealing performance experimental provision of sealing structure

Country Status (1)

Country Link
CN (1) CN105865718B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109029845B (en) * 2018-07-17 2020-05-22 内蒙古第一机械集团股份有限公司 Testing device and testing method for sealing performance of hollow bolt

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2052670U (en) * 1989-03-25 1990-02-14 肖超 Fire fighting water supply equipment with pressure fixed by nitrogen gas
CN104132783A (en) * 2014-08-28 2014-11-05 河南柴油机重工有限责任公司 Water pressure testing tool fast to disassemble or assemble
CN104359635A (en) * 2014-11-24 2015-02-18 中国航空动力机械研究所 Multifunctional all-working-condition metal elastic sealing ring testing device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7820085B2 (en) * 2003-10-29 2010-10-26 Essilor International Methods relating to molding optical lenses
JP2005300498A (en) * 2004-04-16 2005-10-27 Gundai Kk Liquid leakage inspection method of inspection object and liquid leakage inspecting device of inspection object
CN202420791U (en) * 2012-01-11 2012-09-05 何鹏飞 Mechanical static seal detecting system
CN204101250U (en) * 2014-08-22 2015-01-14 中国石油化工股份有限公司 A kind of double mechanical seal stationary state pressure testing device
CN105277323A (en) * 2015-11-13 2016-01-27 沈阳航天新光集团有限公司 Sealing test stand

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2052670U (en) * 1989-03-25 1990-02-14 肖超 Fire fighting water supply equipment with pressure fixed by nitrogen gas
CN104132783A (en) * 2014-08-28 2014-11-05 河南柴油机重工有限责任公司 Water pressure testing tool fast to disassemble or assemble
CN104359635A (en) * 2014-11-24 2015-02-18 中国航空动力机械研究所 Multifunctional all-working-condition metal elastic sealing ring testing device

Also Published As

Publication number Publication date
CN105865718A (en) 2016-08-17

Similar Documents

Publication Publication Date Title
CN104020065B (en) Mechanical type stress-corrosion coupling fatigue test device
CN202710414U (en) Device for hydrostatic tests and air tight tests and fatigue tests of pressure container liners and low pressure containers
CN105865718B (en) A kind of sealing performance experimental provision of sealing structure
CN103123309B (en) Pressurization system used for detecting internal-pressure resistance of ceramic tube
CN203350398U (en) A high-flow hydraulic solenoid valve normal temperature and high temperature testing system
CN103234832A (en) Portable plastic pipe pressure endurance testing apparatus and application method thereof
CN204373845U (en) Tensimeter dynamic pressure fatigue test device
CN208887871U (en) A kind of aircraft system air tightness tester
CN103557990B (en) The all-round calibrating installation of a kind of manometer equipment
CN201680987U (en) Marine safety valve testing platform
CN105973552A (en) Complex environment coordination loading system of vibration test of low-temperature propellant delivery line
CN203551382U (en) Hydraulic test and airtight test device of full-digital pressure-bearing type equipment
CN205103101U (en) A water pressure test platform for high -pressure product high -voltage insulation test
CN206002248U (en) A kind of 0.04MPa to 0.25MPa pressure gauge assay device
CN202494561U (en) Portable safety valve calibrator
CN203798511U (en) Pressure testing platform for valve
CN202994571U (en) Pressurization system used for detection of internal pressure resistance of ceramic tube
CN205879445U (en) Airtight test appurtenance of manometer
CN101446306B (en) Test device for underground hydraulic element
CN207610941U (en) A kind of high pressure hydrogen blowout disk pressure pulse test system
CN207163676U (en) Quick detection speed regulator presses oil tank arrangement and system
CN210487197U (en) Pipeline valve pressure test device
CN202793930U (en) Ultrahigh pressure testing device
CN213364356U (en) Portable hydrogen concentration sampling system
CN208669752U (en) A kind of oil cylinder control examining system

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant