A low-power electromagnetic microdisplacement controller consisting of a coil backbone, a coil wound around a coil skeleton with a control circuit and a terminal block, and a coil core, characterized by:
The two ends of the coil magnetic core are fixedly connected with two magnetic conducting columns, a housing is installed at one end away from the coil magnetic core on the two magnetic conducting columns, and a first magnetic conducting plate is fixedly mounted at one end of each magnetic conducting pillar away from the coil magnetic core;
the elastic plate that extends to the middle part of the shell is fixed on the shell, the two sides of the elastic plate are successively fixed with a splint, a third magnetic permeable plate and a second permeable plate are respectively fixed from the inside to the outside, wherein the elastic plate, a splint, and the third permeable plate are all fixedly enclosed on the support column, the two ends of the two layers of the second permeable plate are respectively fixed on the housing, and the two ends of the two layers of the second permeable plate are respectively sandwiched with permanent magnets;
Baffle plate columns are respectively arranged on support column both sides, this baffle column passes through and is fixed on two layers of third magnetic conducting plates, the part that two baffle columns are located in the middle of the two layers of third magnetic conducting plates also passes through two first magnetic conducting plates respectively and leaves a gap in each, and these two baffle columns are fixedly connected with their respective output shafts respectively.
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The reason for the failure of the stem lifting - Wuzhong instrument
(1) Thread damage due to excessive operation;
(2) lack of lubrication or lubricant failure;
(3) Stem bending and torsion;
(4) The surface finish is not good;
(5) Cooperative public service is forbidden and bites too tightly;
(6) The stem nut is skewed;
(7) Improper selection of information, such as valve stem and ...
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Wuzhong instrument G1610 slag lock valve introduction
The slag lock valve (bucket valve) is specially designed for the complex working conditions of coal gasification, and is a special hard seal ball valve that can adapt to high temperature, high pressure and high wear resistance working conditions. The slag locking valve is mainly used to solve the problem of coal slurry feeding in the gasification unit and the common problem of medium scaling in the valves used in the black water process pipeline.
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The use of butterfly valves - Wuzhong instrument
Selection:
The butterfly plate of the butterfly valve is installed in the diameter direction of the pipe. The butterfly valve has a simple structure, small size, light weight, only a few parts, and only needs to rotate 90° to quickly open and close, the operation is simple, and the ...
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The core components and technical requirements of the safety valve - Wuzhong instrument
A safety valve is an automatic valve that uses the medium's own force to expel an additional amount of fluid without any external force to avoid the pressure exceeding the additional safety value. When the pressure has recovered to normal, the valve closes again and prevents the continuous flow of the medium. (TSG ZF001-2006)
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Precautions for valve installation - Wuzhong instrument
1. Before the device, check whether the valve has notched parts, whether the type is correct, whether there are debris in the valve body, and whether the muffler is blocked.
2. Close the valve and cylinder.
3. Device the cylinder on the valve, the direction of the equipment is parallel or straightened with the valve body, and check whether the screw holes are aligned.
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The main function of Wuzhong instrument hydraulic protection module
The hydraulic maintenance module uses the hydraulic locking method to control the inlet and outlet oil circuits and load oil circuits of the electro-hydraulic servo valve, and the module has the following three functions:
1. Locking function
When the system is in normal condition, the hydraulic lock is in the guide ...
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Briefly describe the knowledge of instrument valves
Valves are the most common equipment in chemical enterprises and play a great role. They seem to be simple and easy, but in the actual operation process, they also need to meet the relevant technical requirements, otherwise they will cause safety accidents. Only the valves related to our liquid level appearance are introduced here, and other equipment is not analyzed. ...
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Pneumatic control valve failure and its causes - Wuzhong instrument
(1) The conditioning valve does not operate. The symptoms and causes are as follows:
1. No signal, no air source. (1) The air source is not opened, (2) because the water contained in the air source freezes in winter, resulting in the blockage of the air duct or the blockage of the filter and pressure reducing valve, (3) the compressor is faulty; (4) Leakage of air source main pipe.
2． ...
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Wuzhong instrument hydraulic protection module function
The hydraulic maintenance module uses the hydraulic locking method to control the inlet and outlet oil circuits and load oil circuits of the electro-hydraulic servo valve. The module has the following three functions:
1. Locking function
When the system is in normal condition, the hydraulic lock is in the guide...
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Maintenance method of pneumatic control valve - Wuzhong instrument
Routine maintenance of pneumatic conditioning valves
When the conditioning valve is packed with graphite-asbestos, lubricating oil should be added to the packing once in about three months to ensure that the conditioning valve is flexible and easy to use. If it is found that the pressure cap of the packing is very low, the packing should be compensated, such as the PTFE dry packing is found to be hardened ...
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Wuzhong instrument identification refurbished valve
Nowadays, the valve market is mixed, and illegal traders pretend to be innovative valves to be shoddy in order to make huge profits, which brings great safety risks to the installation project. Therefore, it is necessary to introduce to you the inspection of innovative valves. At present, the valve market dealers mainly exist in the valve counterfeiting ...
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How to maintain the valve in the operation of Wuzhong instrument
For valves in operation, all kinds of valves should be complete and defective. For example, the bolts on the flange and bracket should not be short, and the threads should be free of defects, and no loosening is allowed.
The fastening nut on the handwheel, if found to be loose, should be ...
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The self-operated control valve is different from the one without the commander
The self-operated control valve, also known as the self-operated control valve, is based on the pressure and temperature of the medium flowing through the valve itself as an energy source, and uses the reaction signal (pressure, pressure difference, temperature) at the output end of the valve to be transmitted to the actuator through the signal tube, and then drives the valve disc and then changes the opening of the valve to achieve the adjustment pressure.
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Valve corrosion and how to fix it
1. The corrosion of the valve is usually understood as the damage to the metal material of the valve under the chemical or electrochemical environmental effect. Because the corrosion phenomenon is presented in the spontaneous interaction between the metal and the surrounding environment, therefore, how to isolate the metal from the surrounding environment or more use non-...
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The main basis for the primary selection of valve type of Wuzhong instrument
Generally, the selection of control valve is mainly based on the nature of the medium, process parameters, use requirements, etc.
1. The properties of the medium should be clearly attributed to which of the following:
(1) General fluids
(2) High viscosity, fluids containing suspended solids, fibrous and other fluids
(3) Toxic or high...
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Problems and solutions of pneumatic butterfly valves - Wuzhong instrument
1. The signal valve pushed by the control box does not move. Under the condition that the positioner is installed, the pneumatically adjustable butterfly valve is equipped with a solenoid valve. The weak current of the solenoid valve affects the information output of the control box, and the valve cannot withstand the data signal and cannot work normally.
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Technical requirements for valve assembly - Wuzhong instrument
Valve is a kind of commonly used hardware products, the valve also has certain technical requirements before assembling and in the process of the device, otherwise the assembled valve may not reflect its own excellent function, what are the technical requirements of the valve in the assembly process?
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Intelligent manufacturing of control valves "Industry 4.0" - Wuzhong Instrument Intelligent Factory
Digital Factory Outline
The use of CAD and PDM systems, ERP and other related information systems have been appropriately popularized in many production factories at present, and Wu Zhong has completed the "digital factory" skills and systems after the key link of "how to make → process planning".
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Introduction to the classification of Wuzhong instrument valves
Classified by role and use
(1) Shut-off valve: The shut-off valve, also known as the closed-circuit valve, has the effect of turning on or cutting off the medium in the pipeline. Shut-off valves include gate valves, globe valves, plug valves, ball valves, butterfly valves and diaphragms.
(2) Check valve: Check valve is also known as check valve or check valve.
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The structure of the centrifugal pump - Wuzhong instrument
The basic structure of the centrifugal pump is composed of six parts, namely the impeller, the pump body, the pump shaft, the bearing, the sealing ring, and the stuffing box.
1. The impeller is the core part of the centrifugal pump, its speed is high and the output is large, and the blades on the impeller play a role in the ...
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