Most of the methods of excitation polarization are receiving dipole measurement methods. The number of channels is limited. It must also be arranged according to the regular dipole direction. In particular, the conventional two-dimensional method and the conventional three-dimensional method are traditional dipole receptions. Restriction, the amount of measurement data is small, the signal-to-noise ratio is difficult to guarantee; and this time we focus on the full-true 3D excitation polarization method, using a unipolar measurement method, sharing a common reference line (CVR), between any two receiving points Dipole measurements can be made up. This method can perform channel expansion without limit, and the effective data volume obtained is more than 10 times that of the conventional three-dimensional method.
If a 6*6 grid is placed, during the same acquisition time:
The conventional two-dimensional method gets 30 valid data.
The conventional 3D method gets 60 valid data.
The full-true 3D method yields 654 valid data.
Introduction of full-true 3D induced polarization
Field layout: all receiving points are fixed, and at the same time, the transmitting electrodes are moved one by one. The main station performs real-time condition monitoring and real-time data display, including GPS status, battery working status, grounding resistance, Vp primary field, time series data, and so on.
â–¼Receiver withGPS&MESHâ–¼
Connection method: wireless mesh network
All the collection stations are connected by wireless, and can be interconnected by any node. The status and data are transmitted from time to time, the performance is stable, and the connection range is wide.
â–¼ MESH Network â–¼
Data preprocessing: time series viewing, smart overlay, noise culling, data fusion
â–¼ Time Series â–¼
The results show:
â–¼ IP attenuation curve â–¼
â–¼ Effective Data Dot Matrix â–¼
â–¼ 3D inversion results â–¼
system introduction
Receiving system:
Fully true 3D excitation polarization measurement system, single channel 32bit acquisition, time series storage, GPS synchronization, mesh/network connection, built-in battery work for 7 days, grounding resistance measurement, instrument health status monitoring.
Launch system:
The HPM system includes 10kw (500V, 20A), 20KW (1000V, 20A) power models, supporting IP, SIP, TEM, LOTEM, CSAMT and so on.
Description: The left side is the conventional bulky 10kw, the right side is the portable HPM system 10KW
Fully true 3D excitation polarization application
Fine measurement of complex geological models
High precision high resolution measurement
Resistivity polarizability monitoring
Float valve is one of the tray structures widely used in China at present. It has outstanding excellent performance, and its main characteristics are:
â‘´ Large operating flexibility
As the valve plate can rise and fall freely, it can adapt to the change of air volume from big to small, and the air gap speed is almost constant. It can also maintain high separation efficiency in a wide operating range with frequent load changes.
⑵ High separation efficiency
In practical application, the tray efficiency can reach 60~70%, 10~15 higher than that of bubble cap tray, and it is still very high at low load. Due to the high efficiency, the product quality is improved accordingly.
(3) Large processing capacity
Because the arrangement of float valves is much more compact than that of bubble cap tower, the opening rate is increased. In addition, the air flow blows into the liquid level in the horizontal direction, so the entrainment of foam is low, which can improve the air flow and increase the production capacity. The production capacity is 20~40% higher than that of bubble cap tower.
(4) Pressure drop is small
The air flow through the float valve shrinks, expands and turns only once, and the pressure drop is lower than that of the bubble cap tray. The pressure drop of each tray in the atmospheric tower is only 3-5 mm Hg.
In addition, it has simple structure and low cost; Long service life, no fear of dirty materials; Convenient installation and use.
Performance characteristics of float valve tray:
(1) The processing capacity is smaller than tongue type, sieve plate, and larger than bubble cap tray;
(2) Large operational flexibility;
(3) The pressure drop of the dry plate is larger than that of the tongue type, the sieve plate tray is larger, the pressure drop is smaller than that of the bubble cap tray, and the liquid level gradient on the tray is smaller;
(4) The entrainment of fog is small;
(5) Simple structure and convenient installation.
Strip Guide Float Valve,Stainless Steel Float Valves,Acid Resistant Steel Float Valve,Strip Guided Float Valve Kit
Yangzhou Tongyang Chemical Equipment Co., Ltd. , https://www.tongyangchemic.com