CN101445861A - Air-cooling equipment for external-circulation multi-heat exchanger furnace - Google Patents

Abstract

A novel three-chamber furnace consists of a gas quenching chamber, a heating chamber, an oil quenching chamber and a vacuum pump unit, wherein heat-isolating doors are arranged on both ends of the heating chamber; and the vacuum pump unit is communicated with the three chambers through three pipes, which are all provided with a seal control valve for selectively vacuumizing. In the first furnace, a workpiece is arranged in the gas quenching chamber and then pushed to the heating chamber, a material basket is put down, a material trolley is pulled out, a second material basket is arranged to lock the furnace door, the heat-isolating doors are closed to vacuumize and heat the furnace, the door on one side of the oil quenching chamber is opened after the completion, the material is taken out by a material trolley in the oil quenching chamber, then the heat-isolating doors are closed to carry out quenching and cooling, and the cooling chamber is selectively vacuumized to meet the process standard. On the other side, the second material basket in the small material feeding chamber is automatically pushed to the heating chamber and is heated, the heat-isolating doors are closed after taking out the material trolley, the front furnace door is opened, and a third material basket is loaded and is vacuumized to meet the process standard. Accordingly, the novel three-chamber furnace can solve the problem of high cost resulting from long-time waiting for vacuum operation and temperature increase and decrease, and can achieve gas quenching and oil quenching simultaneously.

Description

Air-cooling equipment for external-circulation multi-heat exchanger furnace

Technical field

The present invention relates to a kind of vacuum oven, especially oil-quenching gas-quenching continuous vacuum furnace.

Background technology

After each oil quenching of double-chamber vacuum oil-quenching air-cooling stove two Room of China finishes at present, wait until that workpiece temperature is reduced in the certain limit, just can open fire door,, heat again in case oxidation when making second batch of workpiece again, be evacuated down to technological standards again.The time and the energy have been wasted like this, inefficiency, cost height.Because gas is quenched and the grease chamber is same chamber, so the air cooling effect is bad, is subject to the pollution of oil gas.

Summary of the invention

Task of the present invention provides a kind of energy-conservation oil-quenching gas-quenching continuous vacuum furnace.

For achieving the above object, the scheme that is adopted is:

A kind of oil-quenching gas-quenching continuous vacuum furnace, comprise feed chamber, heating chamber, discharge chamber, it is characterized in that the merging of three Room is arranged in the furnace chamber, furnace chamber inside is respectively gas quench chamber, heating chamber, oil quenching discharge chamber again, the shared one group of high-power vacuum pump in three Room, when connecting tube, be added with sealed-regulating valve, optionally vacuumize.

Workpiece has heated the back when oil quenching like this, and feed chamber begins charging simultaneously and vacuumizes, and the heating chamber temperature need not to reduce, and has saved the time.

Embodiment

This novel three-eell furnace body is made up of quench chamber, heating chamber, oil quenching chamber, vacuum pump group of gas.All there is insulated door at the heating chamber two ends, and three pipelines of vacuum pump component lead to three Room, and sealed-regulating valve all is housed can selects to vacuumize.During first stove, workpiece is put into the gas chamber of quenching, push heating chamber then and put down charging basket, pull out truck, refill second charging basket locking fire door, insulated door is closed and is vacuumized and heat, after finishing, open oil quenching chamber door on one side earlier, truck also is housed in the oil quenching chamber, close the insulated door quench cooled after getting material, optionally the vacuum of cooling room is extracted into technological standards after getting material.The other side, second charging basket of little feed chamber selected for use push heating chamber heating automatically, fasten insulated door after taking out truck, open preceding fire door, reinstall the 3rd charging basket, vacuumize vacuum and reach technological standards, analogize in proper order, solved the expensive problem that vacuumizes and heat up and lower the temperature and bring because of waiting as long for.Can reach simultaneously the gas dual-purpose purpose of oil quenching of quenching.

Claims (1)

1, task of the present invention provides a kind of energy-conservation oil-quenching gas-quenching continuous vacuum furnace.

For achieving the above object, the scheme that is adopted is:

A kind of oil-quenching gas-quenching continuous vacuum furnace, comprise feed chamber, heating chamber, discharge chamber, it is characterized in that the merging of three Room is arranged in the furnace chamber, furnace chamber inside is respectively gas quench chamber, heating chamber, oil quenching discharge chamber again, the shared one group of high-power vacuum pump in three Room, when connecting tube, be added with sealed-regulating valve, optionally vacuumize.

Workpiece has heated the back when oil quenching like this, and feed chamber begins charging simultaneously and vacuumizes, and the heating chamber temperature need not to reduce, and has saved the time.