Tactics for Failure of Water Ring Compressor Unit

Time：

2021-07-02

The water ring compressor unit is a rough vacuum pump that can obtain 2000~ 4000Pa ultimate vacuum. The vacuum degree of the water ring compressor unit can reach 1~ 600Pa, and the pressure range is 1~ 2 × 105Pa gauge pressure. If the water ring compressor unit encounters problems during operation, how should it be dealt with?

1. Wear repair of bearing drill bit of water ring compressor unit

The wear of transmission parts is a common equipment problem in production enterprises. The quantity is large, the frequency of damage is high, and the bearing drill of the water ring compressor unit is seriously worn. These include various bearings, rollers, reducers, motors, pumps and other bearing positions, bearing seats, bearing chambers, keyways, screws, etc.

The solution is as follows:

The traditional welder processing method is easy to cause material damage, resulting in deformation or fracture of parts, which is very limited. Brush plating and spray reprocessing methods usually require outsourcing. Not only is the recovery cycle long and the cost high, but also due to the materials and metal materials repaired, the cause of wear cannot be fundamentally solved (metal impact and reduced concession).

水环压缩机组

Polymer composite repair materials have comprehensive properties such as good bonding force, good compressive strength, wear resistance and corrosion resistance. Polymer composite repair materials, if the wear size of the transmission part is relatively small, will not be debonded on site, prevent processing, are not affected by the heat of welding thermal stress, and the repair thickness is not limited. In addition, through the wear resistance of the product and the lack of concessions of metal materials, 100% contact coordination of the maintenance part can be guaranteed, and the impact vibration of the equipment can be reduced.

Water ring compressor recovery stage:

(1) Mold processing: production standard open mold

(2) Surface treatment: remove, polish and clean grease to ensure that the surface is clean, dry and strong.

(3) Adjustment material: correct proportion, adjustment and uniformity.

(4) Coating material: ensure bonding, filling and thickness.

(5) Mold installation: brush the release device, install and fix it, so that unnecessary materials protrude.

(6) Demoulding: Disassemble the mold after curing, remove unnecessary materials, the materials cannot be beaten, and can be removed by polishing machine, documents, etc., to meet the installation requirements.

(7) Corrosion and erosion of water ring compressor units to repair metals. The corrosion forms can be divided into two categories: pre- (uniform) corrosion and localized corrosion. The former occurs uniformly on the entire surface of the equipment compared with the corrosion wear of the cavity of the water ring compressor unit, while the latter occurs only locally. For example, pore corrosion, crevice corrosion, intercrystal corrosion, stress corrosion cracking, corrosion fatigue, hydrogen corrosion cracking, wear corrosion, delamination corrosion, etc.

Using polymer composite repair materials to implement surface organic coating anti-corrosion is one of the effective anti-corrosion measures for water ring compressors. Surface adhesive coating protection can be widely used in the repair of wear, air erosion, corrosion parts and pre-protective coatings. It has good chemical resistance, good mechanical properties and adhesive properties. Compared with traditional pressure vessel welding patches, it has the characteristics of simple construction, low cost, good safety performance and good maintenance effect.