Flash condition noise stove top burner valve

    Blocking flow through the gas burner safety valve when a flash occurs, the bubble generated downstream adjustment Gas Burner Safety Valve will produce erosion by scouring the spool surface will smooth polished appearance, this
    From the mechanism of the gas burner safety valve to flash the (PVC <PV and P2 <PV) adjustment, the flash can not be eliminated, only to find ways to reduce the harm flashing on the stove valve, thereby reducing noise. Commonly used method is the region of the material to be washed surface hardening treatment, surface hardening treatment methods include three types:
    (1) The seat and the gas brass safety valve surface spraying, can be sprayed tungsten carbide, chromium carbide  to increase the hardness and other parts subject to erosion.
    (2) the surface of the stove valve seat and valve body surfacing treatment, usually by welding to increase the hardness of erosion site.
    (3) the valve seat and valve surface nitriding treatment to improve the surface hardness and wear resistance, corrosion resistance.
    By adjusting the burner valve surface hardening treatment can improve the hardness of the stove valve, the control valve to enhance the ability of anti-flash "erosion", the corresponding noise will be reduced 5 ~ 10dB. To further reduce noise, can be used with the methods used are: ① improve the pipe wall thickness or adding sound insulation layer in the pipe wall. Regulating burner valve the same diameter, which each additional level of pipe wall thickness, the measured value of the noise can be reduced by about 2dB; ② pipe plus sound-insulating layer to reduce the substance of pipe wall thickness also increases a measure of noise transmitted to the environment; ③ the Safety Valve Burner Valve after the installation of the online muffler, online muffler can absorb some of the sound energy, and after the formation of back pressure valve, which can effectively reduce the noise level of about 25dB.

Gas Burner Safety Valve

First, Gas Burner Safety Valve: Fabric delivery hose from the inside layer, multi-layer and the outer wrapping cloth cover. Cloth attract hose from the inside layer, multi-layer cloth wound, spiral steel wire reinforcement layer and cover.
Second, characteristics: small hose with a diameter tolerance, oil, heat and other excellent performance, lightweight, durable soft tube, etc; minimum burst pressure of four times the working pressure of the hose.
Third, use: all types of cloth wire conveyor (or attract) hose is different according to the transmission medium, the choice of appropriate materials, reasonable structure design, high quality, durable, is a method used to lose gas burner safety valve, suction (negative pressure) flexible hose and a variety of liquid viscous fluid materials such as powdery solid medium.

Range Top Burner Valve noise sources

There are three main range valve noise sources:
    (1) itself vibration noise. Medium flows through the burner valve spool will produce erosion, lateral movement of the spool produce unstable even resonate with the device. Due to the use of Range Top Burner Valve vibration is inevitable, so this kind of noise generation is also inevitable. Note that when you try to install the valve upright on a horizontal pipe installed to reduce noise generated due to the spool instability, usually this kind of noise is very small, resulting in little impact.
    (2) Aerodynamic noise. When contracted flow medium flows through the burner valve section, the flow cross section due to contraction of the flow path blocking sudden changes occur turbulence, while the medium flow rate is changed, the mechanical energy is partially converted liquid noise acoustic energy generated by known aerodynamic Science noise. Because fluid Gas Burner Safety Valve when pressure is inevitable, so the aerodynamic noise can not be completely eliminated. Usually this type of noise level is small, resulting in little impact.
    (3) Hydrodynamic Noise. Fluid control valve in the rapid formation of blocking flow velocity. Blocking flow refers to the incompressible or compressible fluid flows through the stove burner valve when the maximum achievable flow state. At a fixed inlet conditions, when the valve before the pressure kept constant while gradually reducing the pressure after the valve, the flow through the flow Stove Top Burner Valve increases to a maximum limit, and then continue after the pressure reducing valve, the flow rate will not increase, the limit that is blocking traffic flow. Blocking the flow of liquid can easily cause flash cavitation, accompanied by strong noise generation, this noise is usually up to about 100dB, resulting in a large impact.

Gas valve use

Gas valves are widely used for a variety of city gas pipeline network system media pipeline gas, liquefied petroleum gas, natural gas and oxygen. Drive in the form of a manual, worm gear, electric, pneumatic, hydraulic, electro-hydraulic actuator linkage, enabling remote control and automation.
Valve - used to automatically reduce the pipeline and the gas pressure inside the equipment. Department of the gas passes through the gap between the Gas Burner Safety Valve, resulting in resistance caused by pressure loss, to achieve the purpose of decompression.
According to use, depending on the purpose of the valve can be divided into:
1. Breaking use: Used to connect or disconnect the gas pipeline, such as the cut-off valve, gate valve, ball valve, butterfly valve.
2. backstop use: to prevent backflow of gas, such as check valves.
3. Adjust with: used to adjust the gas pressure and flow regulating valve, pressure reducing valve.
The assignment: to change the flow of the gas, gas distribution, such as the three cocks, dispensing valve, the slide valve.
Press the drive, depending on the driving mode can be divided into:
1. Manual: With hand wheels, handles, levers or sprockets, etc., there are human-driven, when the drive is larger torque reduction device equipped with worm gear.
2. Electric: With the motor or other electrical device to drive.
3. pneumatic; with compressed air to drive.
Press and pipeline connection points, according to the valves and pipe connections can be divided;
1. flanged valves: valve with flanges, valves and pipes are flanged.
2. The threaded connection valves: a valve body with an internal thread or external thread, and the pipe valve with a threaded connection.
3. welded connection Range Top Burner Valve: Body with weld, and pipeline valve with solder connections.
4. clamp connection valve: the valve body with the jaws, and pipeline valve with clamp connections.
5. ferrule connection valve: A valve sleeve and the pipe connections.

The advantage of the new safety valve

Recently, the reporter came to the Dagang Oilfield Company Oil Production Oil Factory, six teams board twenty-five station. I saw in a room measuring 5 meters splitter top, a female employee will bite valve alignment interface wrist thick, airy hoop screwed into the high pressure section, check and correct, slid down the ladder metering room, but after 10 minutes.
This time of year, oil board twenty-five six teams have focused on completing the loading and unloading stations, testing the safety Burner Valve of the physical work. This year, the station staff no longer have the safety valve of handling and distress, because through technological innovation, they were using a new type of safety valve.
"In the past, high-pressure gas-separation is a safety valve, diameter 100 mm, enough to have 60 kg weight, handling, together with the four boys, but also with one hour. We now use this safety valve, only 1 kg heavy. "a worker said.It is understood that since the Dagang Oilfield Company, created to carry out the "four small" team activities, the team combined with actual production, the establishment of the "innovative" small team, organization employees around the management weaknesses conduct research. The team leader, told reporters in the past the team to engage in technological innovation, and production technicians are the backbone of the thing, team staff involved are not enthusiastic. After striving for "innovative" small team activities, we are mobilizing the enthusiasm and love to think more employees. Technological innovation has become the highlight of the team excel.Activities, maintenance classes for board twenty-five station splitter valve bulky, time-consuming and laborious annual check handling problems, the splitter Gas Burner Safety Valve interface reconstruction projects as innovative research. Metering separators are high-voltage equipment, in order to ensure safety, they repeatedly ask the pressure vessel and technical experts, to understand the security of oil and gas separator pressure range master valve
works and use specifications. After much research, maintenance classes subtly changed the installation caliber, to ensure the flow of qualified during take-off, based on the successful novel valve "grafted" onto the splitter, thereby greatly reducing the intensity of the work to achieve a single easy loading and unloading safety valve of technical innovation in mind.