MTS 286-20 User Manual

Model 286.20 Confining Pressure Intensifier

Product Information

015-020-201 B

Trademark information MTS is a registered trademark of MTS Systems Corporation.

Contact information MTS Systems Corporation

14000 Technology Drive Eden Prairie, Minnesota 55344-2290 USA Toll Free Phone: 800-328-2255 (within the U.S. or Canada) Phone: 952-937-4000 (outside the U.S. or Canada) Fax: 952-937-4515 E-mail: info@mts.com http://www.mts.com

Publication information

Manual Part Number Publication Date

015-020-201 A

015-020-201 B

June 1991

August 2007

Contents

Preface 5

About This Manual 6

Conventions 7

Technical Support 8

Introduction 13

Overview Of Typical Confining Pressure Control System 14

Description of Major Components 16

Specifications and Dimensions 18

Operation 19

Control Panel 20

High Pressure Precaution 22

High Temperature Precaution 22

Confining System Operation Considerations 23

Operating Procedures 27

Filling the Reservoir From An External Source 28

Filling the Pressure Intensifier From an External Container 30

Filling the Pressure Intensifier From The Reservoir 32

Filling the Triaxial Cell 34

Heating The Triaxial Cell 36

Pressurizing and Depressurizing The Confining Fluid 37

Cooling The Triaxial Cell and Confining Fluid 41

Emptying the Triaxial Cell 42

Draining the Reservoir to an External Location 44

manual name Contents

Contents

manual name

Preface

Safety first! Before you attempt to use your MTS equipment in your test system, read and

Contents About This Manual 6

understand the Safety manual. Like an automobile, your test system is very useful—but if misused, it is capable of deadly force. You should not be afraid of your test system, but you should always maintain a healthy respect for it.

Improper installation, operation, or maintenance of MTS equipment in your test system can result in hazardous conditions that can cause severe personal injury or death, and damage to your equipment and specimen. Again, read and understand the Safety manual before you continue. It is very important that you remain aware of hazards that apply to your test system.

Conventions 7

Technical Support 8

286.20 Pressure Intensifier Preface

About This Manual

Purpose This manual provides detailed information about the Model 286.20 Confining

Pressure Intensifier. The information includes an overview and operation.

Summary This manual includes the following sections.

Introduction This section provides an overview of typical confining pressure control system, a

description of major components, and specifications.

Operation This section contains procedures for operations involving the flow and

pressurization of confining fluid.

Preface

286.20 Pressure Intensifier

Conventions

The following paragraphs describe some of the conventions that are used in your MTS manuals.

Hazard conventions Hazard notices are embedded in this manual and contain safety information that

is specific to the task to be performed. Hazard notices immediately precede the step or procedure that may lead to an associated hazard. Read all hazard notices carefully and follow the directions that are given. Three different levels of hazard notices may appear in your manuals. Following are examples of all three levels.

Note For general safety information, see the Safety manual included with your

system.

Danger notices Danger notices indicate the presence of a hazard which will cause severe personal

injury, death, or substantial property damage if the danger is ignored.

Warning notices Warning notices indicate the presence of a hazard which can cause severe

personal injury, death, or substantial property damage if the warning is ignored.

Caution notices Caution notices indicate the presence of a hazard which will or can cause minor

personal injury, cause minor equipment damage, or endanger test integrity if the caution is ignored.

Other conventions Other conventions used in your manuals are described below:

Notes Notes provide additional information about operating your system or highlight

easily overlooked items.

Special terms The first occurrence of special terms is shown in italics.

Illustrations Illustrations appear in this manual to clarify text. It is important for you to be

aware that these illustrations are examples only and do not necessarily represent your actual system configuration, test application, or software.

Electronic manual

conventions

This manual is available as an electronic document in the Portable Document File (PDF) format. It can be viewed on any computer that has Adobe Acrobat Reader installed.

Hypertext links The electronic document has many hypertext links displayed in a blue font. All

blue words in the body text, along with all contents entries and index page numbers are hypertext links. When you click a hypertext link, the application jumps to the corresponding topic.

286.20 Pressure Intensifier Preface

Technical Support

Start with your

manuals

Technical support

numbers

MTS web site

www.mts.com

E-mail: General information:info@mts.com

Telephone HELPLine 800-328-2255

The manuals supplied by MTS provide most of the information you will need to use and maintain your equipment. If your equipment includes MTS software, you should look for README files for additional product information.

If you cannot find answers to your technical questions from these sources, you can use the internet, telephone, or fax to contact MTS for assistance. You can also fill out the Problem Submittal Form that is available on the MTS web site and in the back of many MTS manuals that are distributed in paper form.

MTS provides a full range of support services after your system is installed. If you have any questions about a system or product, contact MTS in one of the following ways.

The MTS web site gives you access to our technical support staff by means of a Problem Submittal Form and a Technical Support link.

• Problem Submittal Form:

www.mts.com > Contact MTS > Problem Submittal Form

• Technical Support:

www.mts.com > Contact Us > Service & Technical Support

Weekdays 7:00 A.M. to 6:00 P.M.,

Central Time

Fax 952-937-4515

Please include an MTS contact name if possible.

Preface

286.20 Pressure Intensifier

Technical Support

Before you

contact MTS

Know your site number

and system number

Know information from

prior technical

assistance

MTS can help you more efficiently if you have the following information available when you contact us for support.

The site number contains your company number and identifies your equipment type (material testing, simulation, and so forth). The number is usually written on a label on your MTS equipment before the system leaves MTS. If you do not have or do not know your MTS site number, contact your MTS sales engineer.

Example site number: 571167

When you have more than one MTS system, the system project number identifies which system you are calling about. You can find your project number in the papers sent to you when you ordered your system.

Example system project number: US1.30123

If you have contacted MTS about this problem before, we can recall your file. You will need to tell us the:

• MTS notification number

• Name of the person who helped you

Identify the problem Describe the problem you are experiencing and know the answers to the

following questions.

Know relevant computer

information

• How long has the problem been occurring?

• Can you reproduce the problem?

• Were any hardware or software changes made to the system before the

problem started?

• What are the model and serial numbers of the suspect equipment?

If you are experiencing a computer problem, have the following information available.

• Manufacturer’s name and model number

• Operating software type and service patch information. Examples:

– Windows XP Service Pack 1 (SP1)

– Windows 2000 Service Pack 3 (SP3)

• Amount of system memory. Example: 512 MB of RAM.

• Amount of free space on the hard drive in which the application resides.

Example: 11.2 GB free space, or 72% free space.

• Current status of hard-drive fragmentation. Example: 3% total

fragmentation.

286.20 Pressure Intensifier Preface

Technical Support

Know relevant software

information

If you contact MTS

by phone

For MTS software application problems, have the following information available.

• TestWorks 4 version; for example Version 4.09

• Names of other non-MTS applications that are running on your computer,

such as screen savers, keyboard enhancers, print spoolers, and so forth

Your call will be registered by a HELPLine agent if you are calling within the United States or Canada. Before connecting you with a technical support specialist, your agent will ask you for your site number, name, company, company address, and the phone number where you can normally be reached.

Identify system type To assist your HELPLine agent with connecting you to the most qualified

technical support specialist available, identify your system as one of the following types:

• • Electromechanical materials test system

• • Hydromechanical materials test system

• • Vehicles test system

• • Vehicles component test system

• • Aero test system

Be prepared to

troubleshoot

Prepare yourself for troubleshooting while on the phone.

• Call from a telephone close to the system so that you can try implementing

suggestions made over the phone.

• Have the original operating and application software media available.

• If you are not familiar with all aspects of the equipment operation, have an

experienced user nearby to assist you.

Preface

286.20 Pressure Intensifier

Technical Support

Write down relevant

information

After you call MTS logs and tracks all calls to ensure that you receive assistance and that action

Problem Submittal

Form in MTS manuals

Prepare yourself in case we need to call you back.

• Remember to ask for the notification number.

• Record the name of the person who helped you.

• Write down any specific instructions to be followed, such as data recording

or performance monitoring.

is taken regarding your problem or request. If you have questions about the status of your problem or have additional information to report, please contact MTS again.

In addition to the Problem Submittal Form on the MTS web site, there is also a paper version of this form (postage paid) in the back of many MTS manuals. Use this form to forward problems you are experiencing with your MTS equipment, whether it be software, hardware, manuals, or service. This form includes check boxes that allow you to select when you expect us to respond to your input. We guarantee a timely response—your feedback is important to us.

286.20 Pressure Intensifier Preface

Technical Support

Preface

286.20 Pressure Intensifier

Introduction

Triaxial Cell

Open Close

Confining Fluid Input

Open Close

Confining Fluid Output

Open Close

Reservoir Fill

Fluid Reservoir

Open Close

Intensifier Fill

Pressure Intensifier

Low Pressure

Relief

Pressure Transducer

Low pressure line High pressure line

286.20

Confining Pressure Intensifier

Fluid Filter

Off

Fluid Transfer Pump Control

Air supply in 100 psi max.

Air Driven Hydraulic Pump

Fluid Direction

Empty Reservoir

From fluid supply or to empty fluid

Fill system from fluid supply using pump

Fill system from reservoir using pump

Confining Pressure

Air Direction

Air supply into empty traxial cell.

Bleed air into reservoir when filling triaxial cell.

psi

bar

High Pressure

Relief

Air Pressure

Relief

815

Fluid Resivoir

Control Panel

This section describes the Model 286.20 Confining Pressure Intensifier (CPI), its role in the typical rock mechanics test system and other system components typically used with the Confining Pressure Intensifier. Specifications and dimensions are also included.

The Model 286.20 Confining Pressure Intensifier is designed to provide a source of fluid at pressures suitable for use in the confining pressure chamber of a triaxial cell. The CPI is used to fill the triaxial cell with confining fluid, pressurize the fluid, control the pressure, and empty the fluid from the triaxial cell at the conclusion of a test.

Some model versions produce confining pressures up to 140 MPa (20,000 psi). When connected to a fluid-filled triaxial cell, the maximum fluid volume that can flow during pressurization of the external device and its specimen can be as high as 1300 cubic centimeters (80 cubic inches). See “Specifications and

Dimensions” on page 18 for specifications for all models.

286.20 Pressure Intensifier Introduction

Overview Of Typical Confining Pressure Control

Overview Of Typical Confining Pressure Control System

The major system components typically used with the Confining Pressure Intensifier are shown in the following figure.

Introduction

As shown in the figure, a separate hydraulic power supply acts as the primary power source for the Confining Pressure Intensifier. Hydraulic fluid pressures up to 21 MPa (3,000 psi) are translated into confining fluid pressures up to 140 MPa (20,000 psi) under servo control provided by separate electronic controller equipment.

Compressed air, driving a small fluid pump, provides the power to cause confining fluid to flow between various system components before and after pressurizing operations, while filling and/or emptying the triaxial cell, the pressure intensifier, the reservoir, etc. The pump can also cause fluid to flow between an external fluid container and either the CPI or the triaxial cell.

286.20 Pressure Intensifier

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