Thermal Insulation Jacket Type Magnetically Turned Plate Level Meter

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The thermal insulation jacket type magnetic turnover plate level gauge belongs to a multi-functional…

Productoverview:

ZW-UHZ-51B series The insulation jacket magnetic level gauge Is a kind of novel heat preservation liquid level detecting instrument, it uses a steam jacket, circulating water jacketed and vacuum jacketed liquid to always work in a certain temperature. Application of liquid level measurement in petroleum, chemical systems need antifreeze, insulation and heating. Clear indication of the level gauge, convenient observation, the instructions in the form of local red double column. If the resistance type, I plant the production of the current type, switch type remote meter, or DCS, or PLC connection system with intelligent digital beam control instrument, you can more easily achieve the long-range detection, control and alarm.

Two, work principle:

1, the basic type

ZW-UHZ-51B series <strong> thermal insulation jacket magnetic level gauge</strong> according to the principle of buoyancy and magnetic coupling developed. When measured in the container level lift, liquid level gauge leading tube float with lifting, the permanent magnets in float through the relay to the magnetic coupling indicator, driving the red and white flip turn column 180, when the liquid level rises, turn column turned from white to red, when the liquid level drops, by turning column red to white, red and white circles indicator at the actual height of the medium level in the container, so as to achieve the level of instruction.

2, limit switch output

The use of magnetic float with the liquid level gauge is installed in the mobile, the vertical tube set position switch, realize on-off control or alarm.

3, the electric remote

The magnetic level gauge transmitter installation. The sensor and transmitter converter is composed of two parts, the magnetic float moves up and down by the magnetic coupling of the measuring element in intraductal action, obtain the resistance signal changes, summoned into 0~10 or 4 ~ 20mA standard current signal output, and digital display connected to the instrument or computer, realize remote display and control.

Three, application:

ZW-UHZ-51B series <strong> thermal insulation jacket magnetic level gauge</strong> and production level control switch and a liquid level remote transmission device supporting the use of liquid level remote control and display. So it is widely used in petroleum, chemical industry, light industry, electric power, nuclear industry, food, medical and other industries, to the medium level of various cans, boxes and other containers in the direction and control.

Four, main features:

1, suitable for high temperature, high pressure, strong acid, strong alkali and explosion-proof requirements, simple structure, reliable and durable, can add a variety of optional accessories to make control easier;

2, the installation level transmitter and magnetic switch, does not need to install or stop can be adjusted at any time;

3, if the power fails, the magnetic switch is not affected, the accuracy is high;

4, each 10 cm with a different color color, the liquid level is easy to identify;

5, suitable for dyeing and finishing equipment, waste water treatment, power plants, chemical equipment, kerosene boiler and petrochemical industry.

Five, technical parameters:

1, the normal working conditions:

A, environmental temperature: - 25 to 70 DEG c;

B, relative humidity: 5% ~ 100% (including direct condensation and wet);

C, atmospheric pressure: 86KPa ~ 108KPa;

2, measurement range: 500mm ~ 6000mm;

3, accuracy: double column indicator + 10mm;

4, working pressure: 1MPa, 1.6MPa, 2.5MPa, 4MPa, 6.3MPa, 10MPa, 16MPa;

5, medium density: 0.5g/cm3 ~ 1.8g/cm3;

6, medium viscosity: less than 0.05Pa s?;

7, medium temperature: -25 (high temperature to 80 DEG C, 0~200 C), (high temperature of 0~450 DEG C);

8, tracking speed: less than 0.8m/s;

9, contact material: 1Cr18Ni9Ti teflon;

10, control point error: + 10mm;

11, the return difference does not exceed the basic error;

12, repeatability error: no more than the basic error;

13, the switch control point contact capacity: DC24V or AC220V; 1A (resistive load);

14, small spacing between control points Zui (mm): 60;

15, shell protection grade: IP65;

16, display instrument: digital display meter (set alarm and output 4 ~ 20mA signal);

17, explosion-proof grade: D II CT6.

Six, additional option:

1, the magnetic limit switch:

Open type: alarm with higher than;

Normally closed type: higher than the alarm off;

Switch capacity: 250VAC1A (resistive) 250VAC0.3A;

Switch life: 100000 times.

2, a liquid level transmitter:

Output current: 4-20mADC;

Resolution: + 1- + 10mm;

Load resistance: 500 ohms (24VDC power supply);

Transmission distance: 3000m;

Power supply: 16-30VDC.

3, intelligent liquid level transmitter:

Output current: 4-20ADC;

Resolution: 0.2mm;

Load resistance: 500 ohms (24VDC power supply);

Transmission distance: 3000m;

Power supply: 16-30VDC.

Seven, choose the type of:

Steam jacket and circulating water jacket: in the gauge tube body adds a layer of cylinder, steam, circulating water or heat conducting oil circulation;

Vacuum jacket: in the gauge tube body adds a layer of vacuum tube, so that the measured medium and external insulation;

The electric jacket is: the liquid level meter main tube outer winding electric heating line circle, electricity for heating medium;

The user can according to the needs of the project, with the use of remote transmitter, can realize local digital display, and the output of the 4~20mA standard, with far EasTone, recording instruments, or industrial process control needs.You can also cooperate with the magnetic control switch or proximity switch used for liquid level monitoring alarm or the inlet fluid control equipment.

The measurement and control of liquid level, the interface is suitable for all kinds of liquid container. Clearly indicates the height of the liquid level display, visual indicator, and the tank is completely isolated, the advantages of safe use, reasonable design, simple structure, convenient installation and reliable, stable performance, long service life, low maintenance cost, convenient installation and maintenance etc..

Eighth, system components and wiring:

1, upper and lower limit switch output:

A self holding function and reed switch converter, reed switches and converters were installed in the field and control room, by the converter to provide three pairs of contact switch.

2, electric transmission:

A measuring unit and a transmission unit is composed of two parts.

3, explosion-proof:

A with explosion-proof, upper and lower limit switch output:

Safety explosion-proof switch gate switch and relay contacts of the reed which can be directly provided to users of a normally closed or open contact. If the user needs to contact more special design orders.

With the explosion of the remote type security b:

Suitable for use in class II (Electrical Equipment Factory), C gas, the surface temperature of group T4 (135 C).

Note the use of c:

The shell is provided with external transmitter, users must be reliable grounding.

The use of the safety gate shall comply with the instructions for use of content.

The connecting cable transmitter and barrier for industrial safety end for two core shielded cable, wire cross-sectional area of more than 0.5m, cable distributed capacitance is 0.8 F.

Nine, use and maintenance:

Use：

1, auxiliary instrument and accessories with the specific content of the corresponding instrument and accessories see instructions.

2, to prevent a distance or move away in the process of float moves up and down in the main duct damage, lateral supporting special steel factory calibration gauge (with color logo) will hold the magnetic float. So after receiving the product or after installation, please remove the correction magnet, so that the float can move along with the liquid level, before use if the magnetic reversal of inconsistent color correction, available the magnetic suction along the instrument can work normally.

3, level meter installed, with magnetic correction of magnetic guidance once to zero below zero above display red, white display.

4, level gauge according to user needs with a heating jacket or an electric heating device, such as when ordering does not select this option, and in the installation of self used heat pipe, temperature and mixed with heat generated by the device can not exceed the rated temperature level meter.

5, level meter into travel, should open the valve on the liquid guide pipe, and then, the liquid valve open long, let the liquid medium smoothly into the main canal, avoid the liquid medium with a rapid rise caused by magnetic reversal failure or disturbed (in case of this phenomenon can be used to correct the magnet).

Maintain：

1, level gauge cylinder should be solid impurities and magnetic impurities, so as to avoid jamming and weaken the buoyancy of the float.

2, according to the media, the leading tube can be cleaned regularly, cleaning tube deposition of impurities.

3, clean or replace the float on the liquid, open the drain flange into the magnetic float, should pay attention to the heavy and magnetic end up not flip!

4, the low temperature liquefied gas and special products, vacuum jacketed insulation main body level meter, the installation process be careful not to damage the jacket, so as not to affect the quality of the products.

Ten, matters needing attention:

1, auxiliary instrument and accessories with the specific content of the corresponding instrument and accessories see instructions.

2, to prevent a distance or move away in the process of float moves up and down in the main duct damage, lateral supporting special steel factory calibration gauge (with color logo) will hold the magnetic float. So after receiving the product or after installation, please remove the correction magnet, so that the float can move along with the liquid level, before use if the magnetic reversal of inconsistent color correction, available the magnetic suction along the instrument can work normally.

3, level meter installed, with magnetic correction of magnetic guidance once to zero below zero above display red, white display.

4, level gauge according to user needs with a heating jacket or an electric heating device, such as when ordering does not select this option, and in the installation of self used heat pipe, temperature and mixed with heat generated by the device can not exceed the rated temperature level meter.

5, level meter into travel, should open the valve on the liquid guide pipe, and then, the liquid valve open long, let the liquid medium smoothly into the main canal, avoid the liquid medium with a rapid rise caused by magnetic reversal failure or disturbed (in case of this phenomenon can be used to correct the magnet).

Eleven, selection and installation:

1, we must first understand the equipment running their own situation, what is the measuring medium, even if they do not need to know what material, our company also can determine the material according to the medium used equipment.

2, when equipped with the remote meter to do the following, should make the remote meter to gauge leading tube, stainless steel hoop is fixed (disable iron); the remote meter should be on the surface should be oriented and close to the main duct; the remote meter should be zero and gauge zero instructions in the same horizontal line; remote meter and display instrument or computer connection need to wear protective pipe laying or shielding two core cable connection box; a wire inlet hole after laying, requires good sealing, in order to avoid rain, moisture intrusion and the remote meter can not work normally, the junction box in the repair or completion of commissioning should be timely cover.

3, according to the media, cleaning the main duct to remove impurities;

4, for more than a certain length (common type > 3 meters, 2 meters, anti-corrosion type) of the liquid level meter, need to increase the middle reinforcement flange or lug fixed support, to increase the strength and overcome their weight;

5, the installation location, should avoid the material medium or away from the import and export department, to avoid the rapid change of fluid material in local area, affecting the accuracy of liquid level measurement;

6, when debugging, should open the upper guide pipe valve, and then slowly open the valve at the lower part, so that medium smooth entry duct (to avoid the rush of media should be run in the float float, cause drama column fluctuation, affecting the display accuracy), observe the red ball magnetic flip is normal, and then close the lead pipe valve, open the drain valve so, the main duct level drops, according to the method, the operation three times, it is normal, can be put into operation (except special corrosive liquid); magnetic level gauge in the market there are other names, also called magnetic level gauge, or magnetic level gauge, also called magnetic float liquid level gauge. But they need to know the order parameter is certain, such as corrosive medium needs anticorrosive material, corrosion corrosion grade equivalent grade according to the changes of the medium. For example, the special situation of their own equipment, determine the installation mode of the magnetic level gauge, because some places do not fit or do not apply some installation methods.

Twelve, the selection of encoding:

Thirteen, please provide the following data:

1, specifications; magnetic level gauge: ZW-UHZ series;

2, the measured medium Name: medium density: if you do not know the density, can tell us the name of the medium, which is composed of mixed liquid to know several liquid;

3, the instrument measuring range: also known as nominal length, which is the two flange center distance, or look at the scale of products already in use;

4, working pressure: pressure;

5, working temperature: measure the temperature of the liquid;

6, material requirements: wetted materials, such as do not know what kind of material, can give us advice (general liquid is what material we can use what material);

7, supporting the supply of flanges, bolts and nuts, valve, sealing washers and other accessories;

8, standard: flange flange nominal diameter, using conventional flange is DN20 or DN25;

9, special requirements: please indicate in detail before ordering, such as whether or not to take the remote, insulation jacket etc..

Customer service service commitment:

1, our level meter series products quality problems within twelve months, responsible for free maintenance.

2, the warranty period if the products of our company have any quality problems, our company is responsible for free repair or replacement.

3, the warranty period if the user use undeserved, cause damage to the product, our company is responsible for the maintenance, collect the damaged parts cost.

4, after the warranty period of product quality problems, our company is responsible for the maintenance, collect the damaged parts cost.

5, if the user needs to our service, our company in the province of the user service personnel arrived at the scene within 12 hours, arrived at the scene 48 hours outside users.