A fixed vacuum oil purifier is built into the oil station, where the oil is drawn out of the tank, sent through the pipework into the machine and returned after treatment. The TYG-100 takes a different approach: it puts a complete treatment capacity on a trailer chassis and pushes it to the transformer before starting work. The flow rate of the TYG-100 is 6000 L/h, the same class as the ZYD-100; the difference is not in the treatment capacity but in the distance between the equipment and the person.
The first difference: the equipment can be pushed to the site
The frame-type chassis carries travel wheels and support legs, which makes transport easy and positioning on site stable; that is the most direct value of the mobile form. Transformers are in substations, switchgear is in the distribution rooms of the plant, oil tanks are scattered over the various workshops; where the machine cannot get into those places, the oil has to be drawn off first into some intermediate tank and transferred a second time. Every intermediate transfer is one more contact with the air and one more opportunity for the pipework to pick up contaminants. Pushing the machine over removes that stage of transfer altogether: the oil goes into the machine and comes out of it.
The second difference: a short oil path and less secondary contamination
Half of the purification result depends on how clean the incoming oil already is, and the other half on how much dirt it picks up afterwards. The longer the pipework and the more joints it has, the longer the oil stays in the pipe and the more often it has the chance to be contaminated again by the moisture and the dust in the air. The mobile form compresses that pipework to the minimum: the distance from the oil inlet to the flash evaporation tank is short and the number of joints is small, and the clean oil the machine has just treated does not have to travel a long line again before it reaches the customer.
The third difference: the power supply and the site conditions have to be confirmed in advance
The TYG-100 uses a three-phase 380V / 50Hz supply, which is the same as for the fixed type, but a fixed machine with its own distribution cabinet and a mobile machine that has to find power on the spot are two completely different preparations. A mobile machine usually stands outdoors or semi-outdoors, so the routing of the cable, the earthing arrangement and the sheltering of the equipment all have to be settled in advance, and in the rainy season the sealing and the protection of the control cabinet have to be considered as well. As for the site, a trailer chassis needs firm ground where it can stand level and where the support legs can be deployed; ground that is too soft lets the machine tilt, and the tilt affects both the sealing of the vacuum system and the stability of the liquid level in the tank.
The fourth difference: with the fixed machine it is a division of labour, not a replacement
- The fixed type suits large volumes and long-term continuous centralised treatment, taking on the purification of the routine batches.
- The mobile type suits scattered equipment and temporary or emergency work at maintenance sites, available whenever it is called for.
- The filtration accuracy and the vacuum capability of the two can be compared directly; which one to choose depends on where the oil is and how long the working window is.
| Comparison | Fixed ZYD-100 | Mobile TYG-100 |
|---|---|---|
| Flow rate | 6000 L/h | 6000 L/h |
| Main location | A fixed plant room, close to the oil source | Parked with the machine at the work site |
| Power supply | Three-phase 380V / 50Hz, fixed distribution | Three-phase 380V / 50Hz, temporary connection |
| Length of the oil line | Decided by the pipework layout of the oil station | Moves with the machine, as close to the oil source as possible |
| Typical application | Batch purification, treatment of new oil | On-site maintenance, emergency repairs |
The mobile form solves the problem of equipment that cannot reach the site, the fixed form solves the problem of large and continuous volumes; the division of labour between them says more than a comparison of the parameters.