double rolling diaphragm 归档 - GENERAL SEALTECH LIMITED

Posts

Analysis of Invalidity of Rolling Diaphragm Procurement Contract

Analysis of the Invalidity of the Rolling Diaphragm Procurement Contract 1. The spring and tube composition of the diaphragm filter press, and the rubber diaphragm filter press have changed the material and size of the diaphragm, resulting in a large filtration area, low permeability of the filter cake, and fatigue resistance. 2. The diaphragm filter press can also produce various rubber diaphragms according to user requirements. 3. General diaphragm filter presses can purchase ordinary rubber diaphragms, high-temperature resistant rubber diaphragms, and have a long service life. 4. Regularly check the sealing condition of the filter plate according to different application scenarios. 5. Specification of diaphragm filter press: It should have sufficient oil resistance, acid resistance, alkali resistance, multiple corrosion resistance, low tear resistance, aging resistance, and long service life. 6. It is resistant to acid and alkali, various corrosions, and can produce various rubber diaphragms.

Filter plate: Filter plate, filter cloth: Filter is a stacking medium for selection and application. Side beam filter, used between filter plates and filter plates, to form a filtration chamber between filter cloth for filtration, washing, and pressing, with a filtration speed exceeding the usual setting.

Diaphragm: Pulse filter plate, pressure filter, abundant system, and close cooperation. Rectangular vibrating screen, filter, models KM, B, 220, 110, 24, 12.

Diaphragm: Dust collector filtration wind speed: 08-08A, 30KW, 100, Xin, nickel, glass fiber filter plate, PTFE, membrane filter plate, dust filter plate, rubber pipe, water stop, tee, natural rubber, coal water slurry, mud, cold air, insulation melting, polypropylene, plastic filter plate, long neck, carbon steel, low-pressure spray gun, sports field, corrosion, environmental protection equipment, polishing platform, rubber diaphragm, anti-aging filter plate, rubber combustion oil performance and aluminum film, softening Drying, high-pressure drying, cleaning, simple loosening, sealed insulation filter plate, dust removal filter plate, mold proof filter plate, rubber diaphragm, filter cloth, desulfurization, wetting, insulation, lining plate, airflow distribution, molding, drying, insulation, lining plate. Air flow distribution, thermometer, adhesive, high pressure, low pressure, clean, blocky, soft, oil resistant, acid and alkali resistant, insulation, anti oxidation, solvent resistant, insulation, rubber, rare earth, environmental protection, medicine, food, rubber, drying, natural gas, dust containing, dry and wet, insulation, lining plate, enhanced atomization, daily chemical, rubber, plate, aging resistance, opening, mechanical bonding, elbows, etc.

The leaders of Botou City came to our factory to check and guide the anti abrasion measures of the cyclone dust collector and the causes of air leakage. What aspects should be paid attention to when purchasing the bag filter? What factors affect the dust removal efficiency of the boiler dust collector? What are the working principles of the bag filter in the asphalt mixing plant? This paper introduces the working principles of the bag filter in the wood industry.

The RMF-Z-65S right angle pulse valve is a 25 inch right angle pulse solenoid valve, with an angle of 90 degrees between the inlet and outlet. The RMF-Z-65S right angle pulse valve is suitable for connecting the air storage cylinder and the spray pipe of the dust collector.

2023-08-21/by rub

High production standard rolling diaphragm distributor

News

On the basis of ensuring the installation of imported products from the United States, adding a sturdy casing (imported from the United States), increasing a sturdy casing (exported from the United States), and increasing a sturdy lining design ensure the reliability of the product.

High production TM – Y type filters with pressure maintaining and water replenishing capabilities (ketones, esters, phenolic aldehydes, ethers, alkanes, etc.) and other products.

High production TM – high-frequency and high-pressure dehydration control components, with high strength and rotation speed for one-way and pressure gauges, low pressure constant selection, no operation, and intelligent control.

High abrasion Teflon clamps are made of NBR, Neoprene, Butyl rubber, KM, 04, 06, 05, 0, 50, 125, 150.

Box filter press, diaphragm filter press, hydraulic filter press, mechanical compression filter press, hydraulic filter press, cyclone filter press, quick opening filter press (only available for rain and polyester needle felt) 2017, quick opening filter press, filter plate: sand washing filter press, filter plate: when cleaning the filter cloth, the metal effect reversing valve automatically filters in one piece, using PVC. PTFE filter cloth and other filtering materials.

The mechanical compression filter with brake cover components can withstand the strength and weight of the above parts, with good results. The filter press also has good quality, convenient installation and maintenance, safety and reliability, safe and reliable use, small faults, and is user-friendly, allowing the filter plate to be fully compressed, reducing the moisture content of the filter cake, and increasing the moisture content of the filter cake

● Press the filter plate of the filter press mechanically. 1. Place the filter plate between the press plates. According to the oil cylinder material in the use environment, the Butyl rubber diaphragm filter plate can withstand G41J/min, anti-corrosion and corrosive media and is reliable.

● Nitrile rubber of Cangzhou City is used, which has the characteristics of high temperature resistance, high corrosion resistance, alkali resistance, good chemical stability, etc., and can easily ensure that the operation is fully synchronized with other control components.

Due to the use of rubber diaphragm compression, the wear on the filter plate is minimal, resulting in significant wear on the filter plate. At the same time, it can avoid wear on the filter plate and increase the filtration area. The various compression methods of the compression filter overcome the shortcomings of ordinary filter presses.

Fully automatic hydraulic compression is adopted, with a compression pressure of 25MPa, and an electric contact pressure gauge is used to automatically maintain pressure.

● Automatic pressure maintaining, set a pressure of 02-06MPa according to the changes in equipment operation resistance, and adjust the filter plate pressure to reach the specified value range.

Automatic pressure maintaining, hydraulic pressure pressing plate is too thick, there are too many pressing plates, and the filter plate is too thin, causing all the filter plates coming out of the filter press to not be able to be opened. This not only affects the filtering effect, but also affects the filtering effect and filter plate effect. Therefore, in the design, a quick modification should be made to the high-pressure filter plate without considering other filter presses.

2023-07-26/by rub

Rolling diaphragm manufacturing industry with high production standards

News

The rubber diaphragm is square or circular in shape, with a specially burned surface and a liquid set according to pressure. The liquid flows rapidly under the pressure design, achieving the purpose of deceleration and pressure control. Artificial additives are added to the rubber to improve the chemical resistance and toughness of the diaphragm. Artificial additives are added to the rubber to improve the chemical resistance and toughness of the diaphragm.

The rubber diaphragm is square or circular, and has a certain lifespan. The rubber diaphragm can transport high-quality rubber diaphragm, and has the advantages of convenient transportation, installation, and maintenance, as well as low energy consumption.

It adopts a diaphragm made of soft sealing materials such as rubber or plastic, which has good sealing performance. As the diaphragm is a vulnerable component, it should be replaced regularly according to the characteristics of the medium.

The electrostatic diaphragm is a moving column, and under the action of atmospheric pressure, the dust particles are stretched to the external filter type. Controlled by the instrument transmission mechanism, it smoothly and reliably moves towards the displacement circle, displaying a specific stroke such as rotation and pulling plate.

This system adopts a food grade natural polypropylene lining, made of epoxy resin (PP) and non-woven fabric, which is resistant to various media and has high and low pressure resistance. A larger characteristic.

The compressed air of this device is the pressure value, and the medium is working. There is no need to add additional air because the volumetric structure needs to be integrated.

Typical core components of tracheal rubber diaphragm: Rubber diaphragm is mainly used for valves, regulating valves, and automatic machinery for flow, pressure, differential, liquid level, constant temperature volume thermal compensation, etc.

The application scope of domestic water supply pump mainly includes Small appliance, production line pipe 12 solenoid valve, frequency conversion control cabinet 12 solenoid valve, automatic temperature control cabinet 12 solenoid valve, throttling element 4-20 solenoid valve, aCS purpose (HA type), diversion and frequency conversion.

If the steam is corrosive and turbulent, the outlet pressure of the pressure regulating valve cannot reach the specified value, and each pump is checked for conformity before leaving the factory. Therefore, it is not guaranteed that the gas nozzle joint surface of each pump will stop gas in a timely manner before leaving the factory.

The sewage pump divides various pumps into mechanical and gas pushing parts. The mechanical pulling part initially has two gas chambers, which drive four pumps and cause the diaphragm to move back and forth. At the same time, it drives the valve to move the rubber diaphragm back and forth.

When the turbine is used, the oxygen supply to the pump and the pressure gauge are matched with flow holes. The diaphragm pump drives the valve core to move back and forth, causing the pump to move the diaphragm back and forth. When pressurized, the feed pump receives an expansion pressure signal, which can achieve remote control.

The volume size should be determined by the volume, and the pump body is generally divided into 32, 64, and 96. 90, 100, 125, 150, 155.

2023-07-20/by rub

Attention, foreign trade personnel exporting rolling diaphragms!

News

Attention, foreign trade personnel exporting rolling diaphragms! The shapes of the shell include three or four layers, aluminum alloy, cast iron, stainless steel, Hastelloy alloy, polypropylene, polyvinylidene fluoride diaphragm, food rubber, and polytetrafluoroethylene diaphragm.

The full name of diaphragm pump is diaphragm pump, which connects compressed air, light water or oil, is lined with liquid, and there are screws and aluminum alloy diaphragms between the lined diaphragm pump and the diaphragm pump, making it very sturdy!

Diaphragm pump, also known as diaphragm pump, connects compressed air, suction and air compressor subsidiaries, microcontrollers, and diaphragm pumps. The diaphragm pump uses compressed air, nitrogen, or natural gas as the power source. The main directional (pneumatic) control valve distributes compressed air to the gas chamber and applies uniform pressure to the inner surface of the diaphragm. The gas discharged at the same time is discharged from the rear of the other side of the pump through the guide port of the gas valve assembly. The gas pressure in the inner chamber of the pneumatic double diaphragm pump exceeds the liquid chamber pressure, and the diaphragm connecting rod moves back and forth to discharge on one side and inhale on the other side. The direction of liquid discharge and suction is controlled by the direction of the check valve (ball valve or disc valve). When the suction stroke is based on the inlet pressure, the connection method should be around or on the pipeline. The suction stroke also requires adjusting the outlet air source pressure to adjust the flow rate or adjust the flow rate.

QBY3 pneumatic diaphragm pump models: QBY-50 (Q), QBK-40 (NG), QBK-50 (aluminum plate, elevator).

QBY pneumatic diaphragm pump is currently the most innovative pump in China. It can pump and absorb various corrosive liquids, liquids with particles, high viscosity, volatile, flammable, and highly toxic liquids. The flow passage components of the pump body are made of stainless steel, aluminum alloy, cast iron, and engineering plastic. The diaphragm is made of nitrile rubber, fluororubber, chloroprene rubber, polytetrafluoroethylene, and perfluoroethylene propylene (F46) according to different liquids.

No need for irrigation and water diversion, with a suction head of up to 7m, a lift of 50m, and an outlet pressure of ≥ 6kgf/cm2;

The flow is spacious and the passing performance is good, allowing the maximum particle diameter to reach 10mm. When pumping mud and impurities, there is minimal wear on the pump;

The head and flow rate can be adjusted steplessly through the opening of the air valve (the air pressure can be adjusted between 1-7kg/cm2).

Convenient to use, reliable in operation, and easy to open and close gas valves for start and stop. Even if there is no medium operation for a long time or sudden shutdown due to unexpected circumstances, the pump will not be damaged. Overload pumps will automatically stop, with self-protection performance. When the load returns to normal, they can automatically start and run;

The pump has a simple structure and fewer vulnerable parts. It is easy to install and maintain, and the medium conveyed by the pump will not come into contact with moving parts such as the distribution valve and connecting rod. Unlike other types of pumps, the performance gradually decreases due to wear and tear of rotors, pistons, gears, blades, and other components;

Double diaphragm pumps do not require oil lubrication, and even with empty rotors, water, or compressors, they have convenient application and maintenance. The phenomenon of water entering the water tank is not like other types of pumps, where the performance gradually decreases due to wear and tear of components such as rotors, pistons, and valve stems;

Pneumatic diaphragm pumps can transport a wide range of fluids, from low viscosity to high viscosity, and from corrosiveness to viscosity.

2023-07-05/by rub

Rolling diaphragm in practical applications on deep sea submersibles | Idiaphragm

Faq, News

The compensator design method is applied in some deep sea equipment,
The figure below shows the rolling diaphragm used for its pressure compensator and the basic structure of the pump station.

Rolling diaphragm in practical applications on deep sea submersibles
The pressure compensator has a design pressure of 18 MPa, a flow rate of 1 L / min, and a maximum working water depth of 8000 m.
The hydraulic equipment was prepared before the test in a 90 MPa pressure cylinder with a test pressure of 78 MPa.

Through the experiment, GENERAL SEALTECH LIMITED established a mathematical model of compensation pressure, which was obtained through analysis.

1. Asymmetric actuator action is the main factor causing compensation pressure fluctuations;

2. The process of compensating pressure fluctuation caused by the action of asymmetric actuator is mathematically modeled, and the peak value of compensating pressure fluctuation at steady-state operating point and the peak value of pressure difference inside and outside the rolling diaphragm are obtained, and it is pointed out that the inner diameter of compensator is affecting pressure fluctuation. The main structural parameters of the peak value and the peak value of the internal and external pressure difference, which should take a large value;

3. According to the rolling diaphragm strength theory, according to the design criterion that the peak pressure difference inside and outside the rolling diaphragm must be less than the safe working pressure of the rolling diaphragm, the boundary constraint of the inner diameter of the compensator is derived, and the value range of the inner diameter is obtained, combined with the actual Design requirements and processes, the method of determining the inner diameter of the compensator;

4.Based on the key structural parameters of the inner diameter of the compensator, some compensators for deep-sea equipment were designed and tested by a large number of pressure cylinders. The actual use proved the feasibility of the design method.

2019-11-21/by rub