The tangential pump is divided into two types: vertical and horizontal. Its biggest feature is that the flow-head curve is very flat, that is, in the full flow range, the head does not change much, and when the pump flow changes from zero to the required maximum flow range, its The head change is within 5%, and there is no overpressure at low flow or zero flow, thus avoiding the phenomenon that the ordinary Centrifugal Pump is overpressured at medium and small flow and cannot supply water at large flow at the fire scene, greatly improving the fire extinguishing efficiency and firefighters. safety and reliability. Tangential Flow Pump,Magnetic Drive Tangential Flow Pump,Process Pump,Pump Tangential Flow Pumps Jiangsu Qiantu Trading Co., Ltd. , https://www.jsqiantupump.com
China's first "portable high-resolution shallow water multi-beam sounder" was successfully developed at Harbin Engineering University. The invention has the advantages of simple installation, high resolution and high reliability, which fills the gap in China in this field.
"Portable high-resolution multi-beam sounder" is an international high-tech and intensive marine instrument. It is one of the core equipments for high-precision, high-resolution and high-efficiency seabed topography and landform detection. Previously, China has been in a blank state for a long time in this field, and it needs to rely on imported expensive foreign equipment to meet the demand for fine detection of seabed topography.
According to the relevant R&D personnel of the School of Hydroacoustics Engineering of Harbin Engineering University, this instrument can be used for large-area sea-sweeping survey, marine engineering construction, seabed resource survey, river and channel survey, flood fighting, sinking and salvage, underwater archaeology, military In many fields, after trials by relevant domestic units, the measurement results can meet the requirements of international standards and have great promotion value. The successful development of this instrument will gradually change the situation that China's marine instruments rely on foreign imports, and will effectively promote the technical level of China's marine environmental monitoring and underwater engineering construction.
At the appraisal meeting of the "portable high-resolution shallow water multi-beam sounder" project organized by Heilongjiang Provincial Defense Science and Technology Industry Office, the appraisal committee considered that this technical achievement has outstanding advancement, innovation and applicability. The advanced level of similar products at the current international level.
Harbin Engineering University is a key university in China's ship and ocean engineering field. It maintains a strong technical reserve in the research field of ship and ocean engineering, and has achieved a number of important scientific research achievements. It has become China's shipbuilding industry, naval equipment, and ocean. An important base for scientific research in the fields of development and nuclear energy applications, leading in domestic or international advanced position in submersible technology and underwater robot technology.
The motor of the thread tangent pump is an ordinary motor and does not need to be changed. It effectively solves the pressure fluctuation when the flow rate changes in the water supply process, and the problem of serious overpressure when the flow rate is small. Compared with the parallel operation of multiple pumps, it can reduce the number of pumps, reduce the floor space, and is easy to operate and manage; compared with the variable frequency speed control pump, it can save investment, facilitate management, and has many advantages. It is a more complete solution to overpressure. Method.