Diaphragm compressor quality appraisal

diaphragm compressor is a reciprocating compressor that relies on the reciprocating motion of the diaphragm in the cylinder to compress and transport gas. It is a special-structured positive displacement compressor. It is the best compression method in the field of gas compression. This compression method has no secondary pollution and has very good protection for the compressed gas.
diaphragm compressors are mainly used in petrochemical industry, electronic industry, energy, nanotechnology, nuclear power plants, aerospace technology, medical biotechnology, geophysical chemistry, various manufacturing industries and some special industries.
In diaphragm compressor quality appraisal cases, Zhongke Testing can provide diaphragm compressor diaphragm quality appraisal services.

A, classified by structural form:
diaphragm compressor has six types: Z, V, D, L, W, hexagonal type;
B, classified by diaphragm material:
diaphragm compressor's diaphragm material includes metal diaphragm (including ferrous metal, non-ferrous metal) and non-metallic diaphragm;
C, Classified by compression medium:
can compress rare and precious gases, flammable and explosive gases, high-purity gases, corrosive gases, etc.;
D, classified by motion mechanism:
crankshaft connecting rod, crank slider, etc.;
E. Classified by cooling method:
water cooling, oil cooling, rear air cooling, natural cooling, etc.;
0F. Classified by lubrication method:
1 pressure lubrication, splash lubrication, external forced lubrication, etc.
2

JB/T 6905-2019 Diaphragm compressor
GB/T 11170-2008 Stainless steel Determination of multi-element content Spark discharge atomic emission spectrometry (conventional method)
GB/T 4340.1-2009 Metallic materials Vickers hardness test Part 1: Test method
GB/T 13298-2015 Metal microstructure inspection method
GB/T 3280-2015 Stainless steel cold-rolled steel plates and steel strips

was entrusted by a court to conduct product quality appraisal and analysis on whether the diaphragm compressor diaphragm has quality problems and whether the diaphragm compressor meets the technical contract agreement between the two parties.
quality analysis results: The
quality analysis expert group discussed and comprehensively analyzed the quality and technology of the diaphragm compressor diaphragm and diaphragm compressor involved in the case, and on-site investigation and inspection, and made the following suggestions and conclusions:
1, the diaphragm compressor diaphragm material involved in the case does not comply with 00Cr15Ni5.
2, the diaphragm compressor diaphragm replacement cycle involved in the case does not meet the requirements of "4.27 The replacement cycle of diaphragms and air valves of the diaphragm press shall not be less than 2000h" in "JB/T 6905-2019 Diaphragm Compressor", and it also does not meet the requirements of "13.3 Main consumable parts life diaphragm 4000 to 6000 hours" in the "Technical Agreement" provided by the client. The overall dimensions and net weight displayed on the nameplate information of the diaphragm compressor involved in the case did not meet the relevant requirements in the "Technical Agreement" provided by the client.
3, some instruments of the diaphragm compressor involved in the case are inaccurate in display, cannot visually detect the operating pressure, gas flow, and temperature of the diaphragm, and cannot judge the operating conditions of the diaphragm compressor.
4. The crankcase cylinder and head of the diaphragm compressor involved in the case have oil leakage, which does not meet the requirements of "4.16 The air path, water path, and oil path of the diaphragm press should be sealed and should not leak from each other or leak out" in "JB/T 6905-2019 Diaphragm Compressor".