Acetic acid water level gauge

Acetic acid water level gaugeThe installation work is particularly crucial, and we cannot ignore the installation work of the liquid level gauge. According to the installation instructions provided by Yushun, we have adopted the correct installation method and must not take it lightly, ignoring the steps that need to be executed. Otherwise, it will not only affect the service life of the instrument, but also have an impact on the accuracy of the measurement results.

When we need to configure a magnetic flap level gauge on site, the selection of the magnetic flap level gauge needs to be based on the actual working conditions. With the advancement of technology and processing technology, there are many types of magnetic flap level gauges, such as top mounted, side mounted, with remote signal output, vacuum jacket insulation, steam jacket insulation, electric heating insulation, anti-corrosion, and so on.

Selection of matching level gauges for acetic acid storage tanks:

The selection of other supporting devices is also very useful for our later maintenance. In general, users should choose products with exhaust valves and drain valves, because during use, it is inevitable that the inner cavity of the tube where the float is also located will be adsorbed by the measuring medium dirt, which will affect the normal operation of the magnetic float and directly lead to the jumping and distortion of the panel display. At this point, if there is a drain valve, the problem can be easily solved by cleaning the inner cavity.

Material selection for liquid level measurement of liquid level gauge:

The level gauge (PTFE) is suitable for measuring liquid levels in corrosive media and high operating temperatures. It adopts a new process of stainless steel lined PTFE stretching and flanging, with reliable structure and long service life. Selection of liquid level measurement for highly corrosive media.

The level gauge (PP) is suitable for measuring inorganic corrosive liquids such as hydrochloric acid and dilute sulfuric acid. Due to the use of imported high-strength materials that can be close to metals, especially the insulation properties of PPR *, this product is suitable for outdoor water tank level measurement and will not freeze inside in winter But it is not as good in temperature and pressure resistance as PTFE lining, and this product has a higher cost-effectiveness when the temperature and pressure are lower.

Characteristics of water acetic acid ball storage tank level gauge:

1. Using a float as the measuring element and a magnetic steel driven flip column display, no energy is required.
2. Equipped with upper and lower limit switch outputs, it can achieve remote alarm and limit control.
3. Equipped with a transmitter, remote liquid level indication, detection, and control can be achieved.

Installation and maintenance of liquid level gauge:
1. The installation must be vertical to ensure that the floating ball component can move freely up and down inside the main tube.
2. No magnetic conductors are allowed to approach the main body, otherwise it will directly affect the correct operation of the liquid level gauge.
3. After installation, it is necessary to calibrate the flip column guide with magnetic steel to display red below zero position and white above zero position.
4. When put into operation, the valve of the lower inlet pipe should be opened first to allow the liquid medium to smoothly enter the main pipe, avoiding the rapid rise of the liquid medium with the floating ball component, which may cause failure and disorderly flipping of the column. If this phenomenon occurs, it can be recalibrated with magnetic steel after the liquid level stabilizes.

Basic technical parameters of water acetic acid ball storage tank level gauge:

1. Range: above 250mm;

2. Medium density: ≥ 0.4g/cm3;

3. Medium viscosity: ≤ 0.02Pa.S;

4. Working temperature: PP-40~80 ℃, PTFE -40~150 ℃;
5. Pressure rating: ≤ 32MPa;
6. Measurement accuracy: L=500~1000mm ≤ 1.5% FS, L>1000mm ≤ 1.0% FS;
7. Installation methods: side mounted, top mounted;
8. Protection level: IP65;
9. Explosion proof level of liquid level gauge: ib Ⅱ CT4 (Ben An type), d Ⅱ BT4 (explosion-proof type);

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10. Transmission mode: 4-20mA or switch quantity;
11. Wetting material: PP, PTFE;

12. Float material: 316L, PVC/UPVC/CPVC/PT

Difference in lining selection for water acetic acid ball storage tank level gauge:

The stainless steel body is lined with polypropylene (PP) and polytetrafluoroethylene (PTFE) technology, which has high structural strength and corrosion resistance, and can be applied to acidic liquids such as hydrochloric acid, alkaline liquids, and organic solvents. But it is not suitable for measuring concentrated nitric acid, chlorine containing solvents, aromatic agents, aliphatic and other medium liquids. There are two types of side mounted anti-corrosion magnetic flap level gauges with stainless steel main body lined with polytetrafluoroethylene (PTFE) and stainless steel lined with polypropylene (PP), which are suitable for measuring corrosive media. Composition and wiring of magnetic flap level gauge system:

1. Upper and lower limit switch output

Composed of a self retaining reed switch and converter, the reed switch and converter are installed on site and in the control room respectively, with three pairs of contact switches provided by the converter.

2. Electric remote transmission

It consists of two parts: the measuring unit and the transmitting unit.

3. Intrinsic safety explosion-proof

A with intrinsic safety explosion-proof, upper and lower limit switch output type

The explosion-proof switch consists of a reed switch and a safety barrier with relay contacts, which can directly provide users with a pair of normally open or normally closed contacts. If users require more touchpoints, they can place special design orders. (Figure 3)

B-belt security explosive remote transmission type

Suitable for use in π - class electrical equipment (factory use), C-class gas, high surface temperature group T4 (135 ℃). (Figure 4)

C Precautions for use

① The transmitter housing is equipped with an external grounding, which must be reliably grounded when used by the user.

② The use of safety barriers should comply with the relevant instructions.

③ The connecting cable between the transmitter and the intrinsic safety end of the safety barrier is a two core shielded cable with a core wire cross-sectional area greater than 0.5m, and the cable allows a distributed capacitance of 0.8 μ F

Instructions for use and maintenance of water acetic acid ball storage tank level gauge product:
Usage:
1. For detailed information on supporting instruments and accessories, please refer to the corresponding instrument accessory manual.
To prevent damage caused by the up and down movement of the float during long-distance transportation or moving, a calibrated magnetic steel (with colored markings) provided by the liquid level gauge factory is used to hold the magnetic float on the outside of the main tube. So after receiving the product or installation, please remove the calibration magnet so that the float can move up and down with the liquid level. If the color of the magnetic flip column is inconsistent before use, the calibration magnet can be used to smooth it out and the instrument can work normally.
After the installation of the liquid level gauge, it is necessary to calibrate it with magnetic steel and guide the magnetic flip column once, so that the display below the zero position is red and the display above the zero position is white.
4. The liquid level gauge can be equipped with a heating jacket or an electric heat tracing device according to the user's needs. If the user does not select this option when ordering, and uses the heat tracing pipeline after installation, it is necessary to ensure that the temperature generated by the self equipped heat tracing device does not exceed the rated temperature of the liquid level gauge.
When the liquid level gauge is put into operation, the valve of the upper liquid inlet pipe should be opened first, and then the valve of the lower liquid inlet pipe should be slowly opened to allow the liquid medium to smoothly enter the main pipe, avoiding the rapid rise of the liquid medium with the float, which may cause the magnetic flip column to malfunction or flip randomly (if this phenomenon occurs, magnetic steel can be used to recalibrate).

Compared to traditional level gauges:

It can be directly used to observe the liquid level height of various media in containers. It is suitable for liquid level indication in industries such as petroleum and chemical. The liquid level gauge has a simple structure, intuitive and clear observation, no blockage or leakage, easy installation, and simple maintenance. The upper and lower ends of the glass plate level gauge are connected to the container by flanges, forming a connector. The actual height of the liquid level in the container can be directly observed through the glass plate. The upper and lower valves are equipped with safety steel balls. When the glass is accidentally damaged, the steel balls will automatically seal under the pressure inside the container, preventing liquid from overflowing and ensuring the safety of operators.

What should I do if the level gauge of the acetic acid storage tank is too long?

For those exceeding a certain length, it is necessary to add intermediate reinforcement flanges or ear hooks as fixed supports to increase strength and overcome their own weight; The installation position of the magnetic flap level gauge should avoid or be far away from the inlet and outlet of the material medium to avoid rapid changes in the local area of the material fluid, which may affect the accuracy of the level measurement; When equipped with remote transmission instruments, the following measures should be taken:

The zero position of the remote transmission supporting instrument should be on the same horizontal line as the zero position indication of the liquid level gauge; The connection between remote transmission supporting instruments and display instruments or industrial control computers shall be separately laid through protective pipes or shielded two core cables; The remote transmission supporting instruments should be tightly attached to the main pipe of the liquid level gauge and fixed with stainless steel clamps (iron is prohibited); The sensing surface on the remote transmission supporting instrument should face and be closely attached to the main pipe; After the wiring holes of the junction box are laid, it is required to be well sealed to prevent rainwater, moisture, and other factors from entering and causing the remote transmission supporting instruments to malfunction. The junction box should be promptly covered after maintenance or debugging is completed.

Installation steps for liquid level main body:

Magnetic conductors are not allowed to approach the main body, otherwise it will directly affect the accurate operation of the liquid level gauge. In order to prevent damage to the float component during transportation, the float component is removed from the main tube of the liquid level gauge before leaving the factory. After the installation of the liquid level gauge is completed, the bottom drain flange is opened, and the float component is reinstalled into the main tube. Note that the heavy end of the float component is facing upwards and cannot be inverted.

When measuring liquids, the top mounted or side mounted method is used. Install a flip column liquid level indicator, liquid level switch, and liquid level transmitter outside the magnetic flip column body. The magnetic unit is placed inside the floating ball or connected to the floating ball through a top rod. When the floating ball and the magnetic unit change with the liquid level, the magnetic color block (magnetic flip plate) is flipped; The magnetic liquid level switch operates at the corresponding liquid level point; At the same time, the liquid level sensor outputs a standard variable resistance signal under the action of the floating ball magnetic force, and then converts the resistance signal into a 4-20mA current signal output through the transmitter.

1. Wide applicability and diverse installation forms, suitable for measuring liquid levels and interfaces of any medium.

2. The tested medium is isolated from the indicator structure, with good sealing performance, leak prevention, and adaptability to liquid level measurement under high pressure, high temperature, and corrosive conditions, with high reliability.

3. It integrates on-site indication, remote transmission, and alarm control, and can be freely adjusted. It has complete functions, dual color indication with night light, continuous and intuitive, eye-catching, and a large measurement range. The observation direction can be changed arbitrarily.

4. Good vibration resistance, able to adapt to large liquid level fluctuations, simple working structure, easy installation, and low maintenance costs.

5. Equipped with exquisite magnetic steel calibrators, technical parameters can be adjusted on-site at will.

Measurement range of water acetic acid ball storage tank level gauge:

150～8000mm， For level gauges with a center to center distance exceeding 8000mm or where the length cannot be exceeded under long-distance conditions, segmented manufacturing can be used. Work pressure: 0.6; 1.0； 2.5； 4.0； 6.4； 10Mpa

Operating Temperature

F ：120℃； G：200℃； H：450℃

Accuracy: ± 10mm

Medium density: 0.5-2.0g/cm3

Medium density difference: ≥ 150kg/m3 (measurement boundary)

Environmental vibration: frequency ≤ 25Hz, amplitude ≤ 0.5mm

Follow speed: ≤ 0.08m/s

Medium viscosity: ≤ 0.4 Pa · s. For media with high viscosity or media that are prone to crystallization at low measurement temperatures, a heating jacket type liquid level gauge can be used.

Process connection: Side installation flange for bypass: DN25, PN1.0 or PN1.6, PN2.5, PN4.0, PN6.4, PN10.

Switch options: can choose between regular and explosion-proof types

Transmitter options: optional reed tube level transmitter, optional magnetostrictive level transmitter, optional fully intelligent level transmitter with meter display

Tapping hand pressure method

It is common to encounter the phenomenon of instruments running intermittently, which is mostly caused by poor contact or virtual soldering. For this situation, tapping and hand pressure methods can be used.

The so-called "tapping" refers to using a small rubber hammer to strike the possible faulty parts and make them contact normally.

7 Precautions for Using Magnetic Flip Plate Level Gauge

For liquid level gauges that exceed a certain length (ordinary type>3 meters, anti-corrosion type>2 meters).

2. The installation position of the magnetic flap level gauge should avoid or be far away from the inlet and outlet of the material medium to avoid rapid changes in the local area of the material fluid, which may affect the accuracy of the level measurement;

When equipped with remote transmission instruments, the following measures should be taken:

4. The remote transmission supporting instruments should be tightly attached to the main pipe of the liquid level gauge and fixed with stainless steel clamps (iron is prohibited);

5. The sensing surface on the remote transmission supporting instrument should face and be closely attached to the main pipe;

6. When debugging, the upper inlet valve should be opened first, and then the lower valve should be slowly opened to allow the medium to enter the main pipe smoothly (during operation, the medium should avoid rapid impact on the float, causing the float to fluctuate dramatically and affecting the display accuracy). Observe whether the magnetic red and white balls flip normally, then close the lower inlet valve, open the drain valve, and let the liquid level in the main pipe decrease. Follow this method three times, if it is normal, it can be put into operation (except for corrosive and other special liquids);

7. According to the condition of the medium, the main tube of the magnetic flap level gauge should be cleaned irregularly to remove impurities;

Selection of installation method for water acetic acid ball storage tank level gauge:

There are two ways to install liquid level gauges in sections: one is to install them in a staggered manner, and the other is to install them with flange connections. Both of these methods have their own advantages and disadvantages. This installation method has overlapping parts due to the parallel displacement of two magnetic flap level gauges, which can ensure that the displayed liquid level values are continuous. The disadvantage is that the cost is relatively high.

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Acetic acid water level gaugeprice