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How to inflate an pulse damper?
Pulse dampers are commonly used to eliminate pipeline pulsation and are a mandatory accessory for metering pumps. There are airbag type, diaphragm type , air type pulse dampers.
Pulse damper can smooth the pipeline pulsation caused by piston pumps, diaphragm pumps and other volumetric pumps and eliminate the water hammer phenomenon of the system, it is corrosion-resistant diaphragm will be isolated from the gas and the liquid in the pipeline, through the change of the volume of the gas chamber to smooth the pipeline pulsation, the energy of the pressurised liquid for storage and release. This series of products are widely used in chemical, water treatment, food and beverage, electric power, paper making, textile and fluid machinery industries.
How to inflate an pulse damper?
1. Select inflatable tools
Pulse dampers need to use special inflatable tools for inflation, you can generally choose a manual inflatable pump or pneumatic inflatable pump. Among them, the manual pump is simple to operate, but requires a large labour force; pneumatic pump requires external compressed air, inflatable faster.
2. Inflation sequence
Before inflating, please confirm the position of the inflation port and exhaust port of the pulse damper, and follow the sequence of operation in the inflation process to effectively avoid operating errors and air leakage. Generally speaking, inflate the small hole next to the exhaust port first, and then connect the inflation tool to the inflation hole to inflate.
3. Inflation pressure control
Before inflation, you need to confirm the inflation pressure range of the pulse damper, generally between 0.3-0.6MPa. If over-inflation will lead to excessive expansion and rupture of the pulse damper, while under-inflation will affect its damping performance. It is recommended that a pressure gauge be used for monitoring and control during inflation to ensure that the inflation pressure is within the normal range.
What should we pay attention to ?
1. Before inflating, you must stop the machine and make sure it is in a stationary state.
2. Wear appropriate safety protection equipment, such as gloves, when operating.
3. Do not over-inflate or under-inflate below the specified inflation pressure range, otherwise the service life and damping performance of the pulse damper will be affected.
4. If any abnormality occurs during the use of the pulse damper, please stop using it and repair or replace it in time.
What failure will we meet and how to solutions?
|
No |
Troubleshooting |
Cause Analysis |
Solution |
|
1 |
Pressure gauge pointing to 0 |
a. Damaged pressure gauge |
a. Replace the pressure gauge with a good one. |
|
b.The damper is not pre-filled with gas. |
b.Pre-charge the gas with 50% of the line pressure. |
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|
2 |
Liquid leakage from the upper and lower housings |
a.Looseness of upper and lower housings |
a. Unscrew the purple set screw |
|
b.Diaphragm damaged |
b.Replace the diaphragm |
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|
3 |
Pressure gauge fluctuates greatly. |
a. Inadequate inflation pressure |
a.Precharge the line pressure by 50%. |
|
b. Damper selection volume is small |
b. Replace the damper with a larger volume. |
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c. Damaged diaphragm |
c. Replace diaphragm |
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4 |
Gauge needle points to a certain pressure without any fluctuation. |
a,Pre-inflation pressure is too high |
a. Put the pressure in the chamber at 50% of the line pressure |
|
b. Damaged or clogged pressure gauge |
b. Check pressure gauge or replace gauge |
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5 |
The inflation tool is screwed into the inflation connector and still cannot inflate the pressure. |
The depth of the inflatable core is too deep, and the inflatable connector cannot be pressed through the valve core after screwing on. |
Use a simple ring (e.g., paper ball) to pad the inflation valve and then inflate it |
|
6 |
The gas pressure in the damper is leaking too fast. |
Valve body sealing at the sealing of the phenomenon of poor sealing |
Tighten screws or tighten seals such as pressure gauges, inflation fittings, etc. |