-
ABOUTChongqing Jieshi Instrument Co., Ltd. was founded in 1985 and restructured in 1995. It is located in Jieshi Industrial Park, Banan District, Chongqing. It covers an area of more than 100 acres and has more than 400 employees, including more than 60 with intermediate and senior technical titles.
-
PRODUCTSThe quality and technology of the company's pressure regulating products (various pressure regulators, building pressure regulating boxes, regional pressure regulating cabinets, gate stations and long-distance pipeline pressure regulating metering skids, etc.) are in an advanced position in China.
-
STRENGTHThe company passed the ISO9001, ISO14001, ISO45001 system certification, the company holds a pressure pipeline design license (industrial pipeline GC1), a pressure pipeline installation license (industrial pipeline GC2), a component combination device manufacturing license (gas pressure regulating device, factory prefabricated pipe section, flowmeter housing), a pressure pipeline valve manufacturing license (metal valve), a steel forged flange manufacturing license, a pressure vessel manufacturing license (including design qualification), a safety accessory manufacturing license (emergency shut-off valve), and a pressure vessel manufacturing (including installation, repair, modification), X-ray and ultrasonic NDT qualification personnel certificate, etc.
-
-
-
SERVICEThe company has set up offices, distributors and technical after-sales service centers in 30 provinces, autonomous regions and municipalities directly under the central government, with a wide coverage of sales and service network. Our company realizes 7*24-hour after-sales service, provides technical support, holds relevant training regularly, receives user failure problems, and responds to services in a timely and quick manner.
-
CONTACTThank you for visiting the official website of Jieshi Instrument. If you have cooperation intentions or suggestions, you can contact us through the following methods. We will reply as soon as possible, thank you!
JIESHI INSTRUMENT
News Center
21
2023
-
12
The working principle and application field of voltage regulator
Author:
The working principle of 1. voltage regulator
The voltage at the input terminal remains unchanged, and then a part of the voltage is taken out from the input coil as the output. When the number of turns of the coil changes due to the movement of the slider on the input coil, the output voltage also changes, so as to achieve the purpose of adjusting the output.
When we use voltage regulators, there are two points worth noting. First, the public end of the high voltage regulator must be the zero line, otherwise it is easy to cause an electric shock accident; second, the voltage regulator is not electrically isolated and must be used with caution and professional knowledge.
2. voltage regulator is mainly used in what areas
1. Electric furnace industry: annealing furnace, drying furnace, quenching furnace, sintering furnace, crucible furnace, tunnel furnace, melting furnace, box-type electric furnace, well-type electric furnace, melting electric furnace, rolling electric furnace, vacuum electric furnace, trolley electric furnace, quenching electric furnace, aging electric furnace, cover electric furnace, atmosphere electric furnace, oven experimental electric furnace, heat treatment, resistance furnace, vacuum furnace, mesh belt furnace, high temperature furnace, kiln electric furnace.
2. Mechanical equipment: packaging machinery, injection molding machinery, heat shrinkable machinery, extrusion machinery, food machinery, tempering equipment, plastic processing, infrared heating.
3. Glass industry: glass fiber, glass forming, glass melting, glass printing, float glass production line, annealing tank.
4, the automotive industry: spray drying, thermoforming.
5. Energy-saving lighting: tunnel lighting, street lighting, photography lighting, stage lighting.
6. Chemical industry: distillation evaporation, preheating system, pipeline heating, petrochemical, temperature compensation
7. Other industries: salt bath furnace, power frequency induction furnace, quenching furnace temperature control, heat treatment furnace temperature control, diamond press heating, high-power magnetizing/demagnetizing equipment, etc.
What are the characteristics of 3. auto voltage regulator
1, less consumption of materials, low cost. Because the amount of silicon steel sheet and copper wire used in the transformer is related to the rated induced potential and rated current of the winding, that is, related to the capacity of the winding, the winding capacity of the autotransformer is reduced, the material consumed is also reduced, and the cost is also low.
2. Easy to transport and install. Because it is lighter than the same capacity of the double winding transformer, small size, small footprint.
3, less loss and high efficiency. Due to the reduction in the amount of copper wire and silicon steel sheet, at the same current density and magnetic flux density, the copper loss and iron loss of the autotransformer are lower than those of the double-winding transformer, so the benefit is higher.
4, improve the limit of the transformer manufacturing capacity. The ultimate manufacturing capacity of transformers is generally limited by transportation conditions. Under the same transportation conditions, the capacity of autotransformers can be larger than that of double winding transformers.
What is the role of 4. voltage regulator
As the name implies is to adjust the voltage, also called voltage regulator, generally used in scientific research, experiments, testing, heating insulation, soft start and other occasions. Different voltages are provided to the load, and the voltage can be adjusted linearly when energized.
Small voltage regulators are contact type, the capacity is generally below 30KVA, single-phase 220V input, 0-250V output; Three-phase 380V input, 0-420 output.
There are many types of large-scale voltage regulators, and the capacity and specifications can be designed and produced according to customer requirements.
Usually common voltage regulator is a kind of voltage regulator, so we also call automatic voltage regulator.
Latest News
2023-12-21
Application field of shut-off valve
In the petroleum industry, the shut-off valve is often used in oil field pipeline, oil and gas well switch and control, and oil and gas separation system in the filtration, water level control and so on. At the same time, the use of shut-off valves can not only improve safety, but also help improve production efficiency and save energy.
2023-12-21
Seven areas where regulators can be applied
The voltage regulator is the fourteenth batch of energy-saving products in the electromechanical industry. Used in voltage regulation, temperature control, speed control, dimming, power control and other places, the use of a wide range. This article Leilang Shanghai regulator manufacturers to analyze the field of regulator application.
2023-12-21
What are the application areas of solenoid valve
The machine tool industry is one of the main application areas of solenoid valve, due to the increasing degree of automation of machine tools, making the demand for solenoid valve is also growing. For example: clamping device, oil injection device, cutting equipment, pneumatic drive, hydraulic drive, etc. all need solenoid valve to control the flow of fluid.
2023-12-21
How to open the self-closing valve after stopping gas
After the self-closing valve is closed, do these steps to open it if it is safe:
2023-12-21
Gas self-closing valve, can you use it?
The gas self-closing valve is installed on the indoor gas pipeline of residents. It is generally installed behind the gas meter and in front of the gas appliance. When the gas supply pressure of the gas pipeline is under-pressure or over-pressure, it will automatically close without electricity or other external power. Cut off the gas source, which can effectively prevent gas leakage and issuance accidents.