The vacuum instrument and valve working principle

- Jun 03, 2019-

Take you to understand the instrument and valve working principle

 

One.Principle of temperature instrument

1. Structure of thin film thermocouple

 微信图片_20190603110357

 

 

2. solid-expansion type thermometer

 微信图片_20190603110429

 

3. Contour diagram of thermocouple compensation wire

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4. Thermocouple thermometer

 微信图片_20190603110520

 

5. Structure of thermal resistance

 

 微信图片_20190603110541

Two.Principle of pressure instrument

1. Spring-tube pressure gauge

 

 微信图片_20190603110613

2. Electric point-type pressure gauge

 

 微信图片_20190603110634

3. Capacitive pressure sensor

 微信图片_20190603110648

4. Bellows pressure sensor

 微信图片_20190603110702

5. Pressure thermometer

 微信图片_20190603110712

6. Strain type pressure sensor

 

 微信图片_20190603110728

Three.Principle of flow meter

1. Target flowmeter

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2. Orifice flowmeter

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3. Vertical waist wheel flowmeter

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4. Nozzle flow

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5. Volumetric flowmeter

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6. oval gear flowmeter

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7. Venturi meter

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8. turbine flowmeter

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9. Rotor type flowmeter

 微信图片_20190603111123

Four.Principle of liquid level instrument

1. Differential pressure level gauge A

 微信图片_20190603111213

2. Differential pressure level gauge B

 微信图片_20190603111226

3. Differential pressure level gauge C

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4. Principle of ultrasonic measurement of liquid level

 微信图片_20190603111300

5. Capacitor level gauge

 微信图片_20190603111331

Five.Principle of the valve

1. Thin film actuator

微信图片_20190603111404

2. Piston actuator with valve positioner

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3. Butterfly valves

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4. membrane valve

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5. Piston actuator

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6. Angle valve

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7. pneumatic diaphragm control valve

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8. Pneumatic piston actuator

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9. three-way valve

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10. CAM flexure valve

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11. Straight through single seat valve

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12. Straight through double seat valve

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Six.control principle

1. Cascade uniform control

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2. Nitrogen sealing process control

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3.boiler control

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4.Furnace cascade

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5.Heating furnace temperature measurement

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6.Simple uniform control

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7.average control

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8. Material transfer

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9. Liquid level control

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10. Principle of measuring molten metal with an intrusive thermocouple

 微信图片_20190603112213