Plate heat exchanger is a new type of heat exchanger composed of a series of stacked metal sheets. The plates are installed in a frame with movable plates and fixed plates on the side and tightened by clamping bolts. There are corrugated grooves in the opposite direction of each adjacent plate, and the corrugated grooves support each other to form a contact point. When the medium flows, turbulence will be formed and higher heat transfer efficiency will be obtained. The function of the sealing gasket is to seal the flow passage.
Plate heat exchanger,known as a new efficient and compact heat exchanger type, is composed of a series of corrugated shape of the metal sheet stacked into a new type of efficient heat exchanger, according to the different requirements, divided into many specifications and models. The choice of plate heat exchanger depends on three important factors, involving plate, pressure drop, flow and flow channel related issues. In the process of product selection, the above factors should be taken into account.
Plate heat exchanger adopts logarithmic average temperature difference method and NTU method. Most manufacturers use approximate calculation parameter estimation based on thermal formula to obtain logarithmic temperature difference and energy conservation formula with reference to flow rate and volume cross-sectional area and fixed value to obtain the total heat transfer coefficient. According to the total value of the heat transfer coefficient, revise and estimate.
Plate and gasket
The plate materials and the gasket materials mainly depend on the corrosive properties and temperatures of the cold exchange medium and the heat exchange medium. The plate heat exchanger's plate materials and corresponding applicable places are given in Table 1 and its gasket materials and corresponding applicable places in Table 2 for your reference.
Table 1 Plate Materials
| Material name |
Thickness (mm) |
Material grade |
Applicable place |
| Stainless steel |
0.5-0.8 |
304,321,316,316L |
Places with serious corrosion caused by acid or base mediums and places not suitable for chloride ions |
| Commercial pure titanium |
0.5-0.8 |
Ti |
Alkali or salt making places, sea water desalination places, low-temperature places, freezing places or places with chloride-ion corrosion |
| Nickel |
0.5-0.8 |
Ni |
Places resistant to corrosion, hot alkali liquor corrosion, neutral solutions or subacid solutions |
| Acid-resistant steel |
0.5-0.8 |
RS-2, SM0254, HC-276 |
Sulfuric acid field and the fields with acid corrosion |
Table 2 Gasket Materials
| Material name |
Code |
Applicable temperature |
Applicable place |
| NBR |
N |
-20~110ºC |
Water, non-polar oil, mineral oil, lubricating oil, silicon oil, etc. |
| EPDM |
E |
-20~150ºC |
Steam, water, ozone, polar chemical mediums, alcohol, weak acids, weak bases, salt solutions, etc. |
| Chloroprene rubber |
C |
-40~100ºC |
Ammonia, mineral roil, lubricant, freon, etc. |
| Fluororubber |
F |
0~180ºC |
Inorganic acids, bases, mineral oil, halohydrocarbon and oxidant |
| Silicon rubber |
Q |
-40~200ºC |
Food field, etc. |
Plate heat exchanger design selection, the pressure drop is also a certain requirement, so it should be checked. If the pressure drop exceeds the allowable pressure drop, it is necessary to re-calculate the design selection until the process requirements are met.
Q&A
1. Q: How long can we deliver goods?
A: It would be 15-25 days after payment and drawing sketch confirmed
2. Q: Can your company supply an after-sales warranty?
A: Yes, we can supply 1-year after-sales warranty against B/L date.
3. Q: What payment terms can you accept?
A: We can accept L/C, T/T, etc.
4. Q: Can you accept customized order?
A: Yes, we accept, we have a very professional technical group who can design the special products according to your basic parameter/ data sheet/ drawings or sample.
5. Q: Do you have your own factory or just you are a trading company?
A: We are the direct factory group, one is in Guangzhou City, Guangdong Province, another is in Huanggang City, Hubei Province.
6. Q: Is OEM order acceptable to your company?
A: Yes, OEM is Welcomed.
7. Q: What kind of equipment used for manufacturing process?
A: A series of high-tech equipment used in the process of manufacture, including special hydraulic machine for plate heat exchanger, CNC automatic cutting machine, automatic wheat arc welding machine, automatic plasma welding machine, CNC plate winding machine, shearing machine and etc.
About Warranty:
We promise 1 year guarantee, all reasonable relevant cost will be undertaken by us in the first year if our heat exchanger fails to work due to quality problem, only the free repairing operation guide is available in the rest of years via E-mail /Fax/Phone
Company profile:
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