Signal butterfly valve for petroleum, chemical, food, medicine, paper, water and electricity, ships, water supply and drainage, smelting, energy and other systems on the pipeline. Used as a regulating and throttling device on a variety of corrosive, non-corrosive gas, liquid, semi-fluid and solid powder lines and vessels. Especially widely used in high-rise building fire control systems and other needs of the state show the valve on the pipeline system. First, the characteristics of the signal butterfly valve 1, small and lightweight, easy disassembly and maintenance, and can be installed anywhere. 2, the structure is simple, compact, 90 ° rotation quick opening and closing. 3, operating torque, light and labor-saving. 4, to achieve a complete seal, gas leak test to zero. 5, choose different parts and materials, applicable to a variety of media. 6, flow characteristics tend to be straight, good regulation. 7, up to ten thousand times the number of opening and closing test, long service life. 8, where the use of gate valve, check valve (ball valve) "> globe valve, plug valve, hose valve and diaphragm valve pipeline, especially in high-rise building fire protection system and the need to show the state of the valve switch system can be used The valve replacement. Second, the working principle of the signal butterfly valve 1, the signal butterfly valve driven by the worm gear shaft and disc rotation to achieve opening and closing and control flow. 2, rotating worm gear handwheel to enable the disc to open and close and The purpose of regulating the flow, the hand wheel clockwise to turn the valve closed. 3, worm gear box There are two forms of micro-switch box set up: a, in the transmission box with open to close the two micro Move the switch, respectively, when the valve is fully open and closed action, connected to the control room "valve open" "valve off" light source, so that it accurately shows the valve switch state b, in the transmission box set to the micro-movement Switch (butterfly plate closed position 0 °), when the butterfly plate from 0 ° ~ 40 ° position micro-switch support for the output valve closed signal, 40 ° ~ 90 ° position of the other normally closed Out of the valve to open the signal. Adjustable pressure contact micro-switch cam, showing the disc at different locations. Third, the signal butterfly valve worm gear adjustment and wiring methods 1, open the electrical switch box cover, according to the electrical control requirements of the cable Of the core wire received the corresponding terminal, and seal the cable inlet, at the same time the cable is fixed to prevent damage to the cable wiring when the external force affects 2, when the valve is in the "fully closed" position, clockwise turn the following off the cam, Is the cam just touch the micro switch (you can hear a click), and then tighten the screw on the cam fixed cam. 3, when the valve is in the "fully open" position, turn the opening cam counterclockwise, with the same Adjust the way to open the cam. 4, adjust the limit screw, when the valve in the "full close" or "fully open" position, the limit screw should not just top the worm gear limit plane, but should leave a certain Of the gap, and then tighten the lock nut on the limit screw 5, cover the electrical switch box cover, when the valve in the "full close" position, so that the opening indicator Needle points to the "0" scale on the dial, and tighten the screw to fix the pointer. 四, Notes on the use of signal butterfly valve 1, The butterfly valve can be installed on the pipeline at any position in space. 2, The installation position of butterfly valve should be guaranteed to be used, repaired and Easy to change 3, the installation of the butterfly valve can not consider the direction of pipeline flow, which allows two-way flow. 4, butterfly valve installed before installation should be stored in dry places, the valve plate slightly open 4 ° ~ 5 °. Installation should be carried out before the following: a, carefully check the use of the performance of the butterfly valve is consistent with the specifications b clean the chamber and the sealing surface, do not allow dirt adhesion, do not open and close the disc before cleaning c, check Whether the transmission device is connected with the flange on the butterfly valve reliably or not 6, When the butterfly valve is clamped in the pipeline, pay attention to whether the connection force is even and reliable. 7, the butterfly valve installed, the pipeline pressure test, the valve plate must be in the open position. 8, the butterfly valve installed, it should be regularly checked, the main items of its inspection are as follows: a, butterfly valve seat and O-ring damage. b, sealing performance of the valve plate sealing surface. c, butterfly valve repair assembly, opening and closing rotation may not have jamming phenomenon. d, butterfly valve repair assembly, the sealing performance test should be required. f, after each overhaul, the situation should be detailed records for future reference.
Forming Mould Base
Core and future trends of manufacturing industry
In the manufacturing industry, forming molds play a vital role. It is a kind of mold used to manufacture various shapes and sizes, and is widely used in automotive, medical, electronics and other fields. This paper will discuss the definition and basic concept of forming die, application field, development process and future trend.
First, the definition and basic concepts of molding die
Molding die is a kind of mold used to manufacture various shapes and sizes, mainly through pressure, temperature and chemical reactions to transform raw materials into products in the desired shape. Molding die can be divided into many types according to different manufacturing needs, such as die casting die, injection mold, forging die and so on. In the manufacturing industry, molding molds have the advantages of high efficiency, accuracy and low cost, and are indispensable production tools.
Second, the application field of forming die
1. Automotive field: A large number of molding molds are needed in the automotive manufacturing process, such as doors, seats, engine parts, etc. Forming molds can produce automotive parts that meet the requirements in an efficient and accurate manner, thereby improving production efficiency and reducing costs.
2. Medical field: The manufacturing process of medical devices also needs to use molding molds, such as syringes, artificial joints, etc. The molding mold can produce devices that meet medical standards in a high-precision manufacturing method, thereby improving the quality of medical care.
3. Electronic field: The manufacture of components such as the shell and internal structure of electronic products also requires the use of forming molds. The molding die can produce the required electronic product parts in an efficient and low-cost way, thus reducing the cost of electronic products.
Third, the development of molding die
The development process of forming die can be divided into two stages: traditional die and modern die. The traditional mold is mainly made by hand, and the accuracy and efficiency are relatively low. With the continuous progress of science and technology, modern molds gradually adopt mechanized and automated production methods, which greatly improve production efficiency and accuracy. At the same time, with the continuous development of computer technology, modern mold design has gradually adopted computer-aided design software for design, further improving the accuracy and efficiency of mold design.
Fourth, the future trend of molding die
With the continuous development of science and technology, the future trend of forming die will develop in the direction of digital, intelligent and green.
1. Digitalization: Digital technology can realize the precision and automation of mold design and improve the efficiency and accuracy of mold design. At the same time, digital technology can also realize the comprehensive monitoring and management of the mold production process, improve production efficiency and quality.
2. Intelligent: Intelligent technology can realize the automatic production and online monitoring of molds, improve production efficiency and product quality. At the same time, intelligent technology can also achieve predictive maintenance and fault warning of molds, reducing production costs and maintenance costs.
3. Green: With the continuous improvement of environmental awareness, green production has become an inevitable trend in manufacturing. In the future, the production of molding molds will pay more attention to environmental protection and energy saving, such as the use of environmentally friendly materials, energy-saving design and production processes to reduce environmental pollution and resource waste.
In short, forming die as an important production tool in the manufacturing industry, its development trend will directly affect the development direction of the manufacturing industry. In the future, with the continuous development of science and technology and the changing needs of society, the molding die will continue to innovate and develop, injecting new impetus into the development of the manufacturing industry.
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Shuaigang Mould Base (Yixing) Co., Ltd , https://www.shmouldbase.com