The introduction of gas heater valve

Below the level of progress of science and technology, China's chemical production automation has also been a rapid promotion, to achieve precise control of flow, pressure, level and temperature, among chemical automatic control system, the control Gas Heater Valve is an important part of the implementation of device, the model and the quality of the installation for the regulation loop regulation quality has a significant impact, if you adjust the selection and application of improper gas heater valve, regulating gas heater valve will be a serious threat to the life, the Water Heater Gas Valves is serious and even cause the system to stop accidents.

     In the development of industrial automation, pneumatic control gas heater valve actuators as a good has been widely used, the kind of control gas heater valve has a reliable action, simple structural features, for the protection of the safe operation of great significance, the following on automatic control for chemical process pneumatic control Gas Heater Control Valve selection and application of in-depth analysis.

Oven gas valve application advantages

Storage tank to replace the current pilot hydraulic control oven gas valve in the heavy hammer hammer slow closing check free standing ovens gas valve in the accumulator tank, the weight becomes fluid accumulator potential, not only to save the consumption of the long-running support hammer energy, but also improves the performance of the hydraulic system of packing, while also ensuring the maintenance staff oven gas valve runtime safety.

    Storage tank hydraulic control slow closing check oven gas valve and Range Top Burner Valve application advantages

     Storage tank hydraulic control slow closing check oven gas valve control mechanism novel, rational design, small size, light weight, simple structure, functional, flexible and reliable operation, nice appearance, energy and materials, easy maintenance, easy to implement pump oven gas valve interlock control and computer centralized control. When a power outage, you can shake off oven gas valve manual pump. Gas Grill Control Valve opening and closing, the action is very convenient.

Gas heater valve positioner Troubleshooting

Intelligent gas heater valve positioner by standard diagnostic function although can identify the main diagnostic gas heater valve state error, the direct reasons but for Barbecue Valves to identify fault is a very difficult thing, users need a diagnosis report of feasibility to find the fault reason "". So the current intelligent gas heater valve positioner manufacturers in addition to provide standard diagnosis function I extended diagnostic function, to meet the various needs of users. Expansion mainly focus on the following two aspects:



(1) installation auxiliary sensors in intelligent gas heater valve positioner, the actuator need to disconnect, the use of this sensor to detect changes at this time of the pneumatic input and output signal size, so as to judge the work piece and the actuator gas heater valve is normal. For this method, the vast majority of manufacturers are to measure the load to the actuator diaphragm pressure sensor is installed on the pressure, the pressure and the gas heater valve position. Online mode of operation, only recording the signal gas heater valve running down, can provide friction and pressure Range Dual Safety Valve, so that we can come to a more effective "diagnostic report".



(2) through a special program software in reference to the initial gas heater valve position slightly changed, whether online or offline, the dynamic response of change will signal is recorded in the memory of smart gas heater valve positioner, thus forming a clear change image, through the change of image analysis is the delay time and the time of transmission is increased or reduced, and combined with the analysis method of mathematical simulation module, diagnostic analysis to predict the operating state of the gas heater valve parameters by image analysis. It can also get a diagnosis of "report", is convenient for the user to identify the cause of the malfunction.



(3) is completely realized in the internal process of diagnosis and testing should be locator, and according to the similar traffic light coding system automatically sends the alarm state, at the same time the alarm is process control system shows that the repair personnel interested in alarm at the appropriate authorization level, gas stoves freestanding is not interested in the operator information analysis function and processing, prompt repair repair personnel will appear. The prospect of the development of intelligent gas heater valve positioner diagnosis function in three, petrochemical field.

The operation principle of gas heater control valve positioner

1. When the gas heater control valve is initialized, the performance of the entire gas heater control valve has been tested, the parameters are optimized, if you have problems, it will send alarm information. Alarm information: Preventive alarm - control gas heater control valve condition with mild wear, the future will continue to wear, but also to work gas heater control valve; maintenance alarm - badly worn patio heater control valve status, the current can still work, but may occur at any fault ; failure alarm - Remind equipment operators, gas heater control valve failure has occurred. Reaction detection information which appears on the control gas heater control valve assembly; cause failure cause analysis - how to solve the failure.

     2. Before use through smart gas heater control valve positioner can control gas heater control valve original initialization, all gas heater control valves original state after initialization information is stored locator. Such a control Gas Water Heater Valve with intelligent positioners start automatic initialization of work, including determining the mechanical travel range locator best indicator parameters and automatically adjusts its work, the locator information and indicators signal parameters applied mechanically determined based on the current algorithm to control the gas heater control valve opening and closing. Working condition of the Gas valve supplier is normal or not is crucial, locator real time detection and analysis of its uninterrupted, once a fault, it will send an alarm signal detection and analysis of all the results are stored in the memory location, as well as provide diagnostic information to repair malfunctioning equipment and other aspects of the operator or maintenance engineer.

Oven gas valve positioner

In the petrochemical production, smart Oven gas valve positioner compared with conventional Oven gas valve positioners, has some significant advantages and application characteristics. Easily corrected during commissioning process, the smart Range Top Burner Valve positioner operation than conventional Oven gas valve positioners, simpler and easier to grasp. Compared with the conventional Oven gas valve positioners, smart Oven gas valve positioner does not need to adjust some other control devices will be able to assist in the identification and control of automated operation, and in the process can be automated control to adjust the optimal state, it is possible to adjust the different control requirements optimized settings. For example, in Stove Top Burner Valve petrochemical production process, if you need to adjust the control Oven gas valve to force all off, it's intelligent operation control system will adjust according to the input signal changes its control to adjust production runs were forced off the equipment, in order to achieve regulation and control system forced all closed set. All this had to be attributed to the use of smart Oven gas valve positioner software control system is an pilot operated safety valve setting of the software system, running in using an automatic configuration program.

Oven gas valve positioner advantages of traditional positioner

Because the petrochemical industry production is flammable, explosive, toxic, corrosive, poor working conditions and other characteristics, so it is a high risk industry, once accident occurs, often causing very serious casualties and property losses. Therefore, high risk of forced petrochemical enterprises to increase automation and intelligent control equipment investment, production process control requires a lot of control Oven Gas Valve and its diagnosis and maintenance, so as to realize the efficient management of process safety enhancement, thus the risk as much as possible, down to the lowest. Intelligent Oven gas valve positioner control Oven gas valve as the main component, the continuous development and improvement of diagnostic technology, intelligent Oven gas valve positioner diagnosis technology plays a more and more important role in the diagnosis, control and detection of the petroleum chemical industry production process.
First, intelligent Oven gas valve positioner in traditional Oven gas valve positioner
The Oven gas valve positioner is composed of 1 traditional regulator or output safety gate sent 4 ~ 20mADC current input coil, the coil is located in the moving iron magnetization and work. Because the moving iron in permanent magnet field generated by the magnetic field, therefore, the two interaction of moving iron to produce deflection torque, the fulcrum as the center deflection. As the signal increases, the leverage the left should be downward movement. When the baffle is fixed on the lever is near the nozzle, the amplifier output pressure back pressure increases, the role of the amplified film head to wither section Oven gas valve, the Gas Grill Control Valve stem down. The stem of the displacement through the pull rod are converted into angular displacement feedback shaft and the feedback plate, then the feedback through the range pivot to body movement. Feedback spring is fixed at the other end of the lever on the stretch, produce a negative feedback torque, so that the lever balance, while the stem is also stable in a position to determine the corresponding, to realize between the signal current and position proportional relationship. However, the traditional Oven gas valve positioner amplifiers constant throttling orifice prone to clogging, back pressure maximum, the amplifier gas cooker safety valve stuck, the nozzle and baffle strict shortcomings.

Gas heater valve lifting requirements

   Should be used at high intensity, long enough rope fixed to the lifting screw, ensure the rope angle of less than 60 °, lifting; Gas Heater Valve in the lifting, tying the sling is not allowed in the gas heater valve end cap on the gas heater valve neck, or gearing To move smoothly to avoid shocks.
 Distance from the center of the pump outlet gas heater valve should be greater than 2000mm, if you can not meet this condition, to take rectification measures, where possible, the conditions should try to increase this distance in order to reduce the adverse effects of the turbulent flow regime pump outlet of the gas heater valve.
 Some still some speakers pump outlet pipe, gas heater valve fully open, the disc should be within flare.
 The butterfly patio heater valve body is mainly composed, transmission, hydraulic and electrical control components. Has the following main features:
 The gas heater valve main seal type is: Stainless steel - stainless steel, and with three eccentric structure, so reliable sealing performance, and the disc more closed more tightly, easy to disengage; ring made of stainless steel, corrosion resistance and long service life.
 For lead-bearing non-oil self-lubricating bearings, with strong bearing capacity, wear resistance, friction resistance and other characteristics; shaft seal with self-tightening and other double-sealed, good sealing effect; disc shape with streamlined design, has a small Gas Control Valves coefficient of flow resistance (≤0.2), novel appearance, appearance and other characteristics.
 In short, the accumulator tank hydraulic control slow closing check gas heater valve in the application of the pumping station, with easy operation, investment, quick, favorable energy efficiency and many other advantages, in a similar pump station application.

The application of gas heater control valve positioner

Storage tank to replace the current pilot hydraulic control gas heater control valve in the heavy hammer hammer slow closing check Gas Heater Control Valve in the accumulator tank, the weight becomes fluid accumulator potential, not only to save the consumption of the long-running support hammer energy, but also improves the performance of the hydraulic system of packing, while also ensuring the maintenance staff gas heater control valve runtime safety.

     An accumulator tank hydraulic control slow closing check gas heater control valve application advantages

     Storage tank hydraulic control slow closing check gas heater control valve control mechanism novel,patio heater control valve, rational design, small size, light weight, simple structure, functional, flexible and reliable operation, nice appearance, energy and materials, easy maintenance, easy to implement pump gas heater control valve interlock control and computer centralized control. When a power outage, you can shake off gas heater control valve manual pump. gas heater control valve opening and closing, the action is very convenient.

      Storage Tank slow closing hydraulic control gas heater control valve back to the structural features only

    Storage tank hydraulic control gas heater control valve of choice back slow closed

     Combined with the design requirements and operational characteristics of the pumping station, storage tank fluid Propane Control Valve we used both slow closing check gas heater control valve and check gas heater control valve function, is a good set can be adjusted according to a pre-programmed, two-stage (first fast off a certain angle, then slowly close the remaining angle) off action to eliminate water hammer damage ideal for pipe network control equipment.