초록 ▼

A grease extractor includes a fan for forcibly flowing grease laden air to remove grease therefrom in cooperation with a membrane filter and a trap member. The grease extractor comprises a vessel with an inlet for introduction of the grease laden air and an outlet for discharging clear air removed o

A grease extractor includes a fan for forcibly flowing grease laden air to remove grease therefrom in cooperation with a membrane filter and a trap member. The grease extractor comprises a vessel with an inlet for introduction of the grease laden air and an outlet for discharging clear air removed of the grease. The membrane filter is disposed in a flow path between an inlet and an outlet of the extractor to seize the grease while passing the grease laden air therethrough. A trap member is disposed downstream of the membrane filter to deflect the air to cause collision of the grease laden air against the trap member to deposit the grease thereon. The trap member is formed with a recovery line for collecting and draining the deposit grease out of the vessel. The membrane filter is thin enough such that relatively small grease particles once seized in the membrane filter are allowed to move by the action of the forced flow to the downstream surface of the membrane filter and coagulate thereat into greater grease particles. Such greater grease particles are then caused to leave from the membrane filter by the force air flow so as to be again carried on the air flowing toward the trap member. The air carrying the greater grease particles is brought into collision with the trap member to efficiently deposit the grease on the trap member for recovery thereof, while leaving clean air to be discharged out of the vessel.

대표청구항 ▼

A grease extractor for removing grease from a grease laden air and discharging a clean air after removal of the grease, said grease extractor comprising: a vessel having an inlet for introducing the grease laden air and an outlet for discharging the clean air, said vessel defining therein a flow pat

A grease extractor for removing grease from a grease laden air and discharging a clean air after removal of the grease, said grease extractor comprising: a vessel having an inlet for introducing the grease laden air and an outlet for discharging the clean air, said vessel defining therein a flow path extending from said inlet to said outlet; centrifugal fan means for receiving air inwardly and directing air outwardly provided in said flow path between said inlet and said outlet to generate a forced flow for introducing said grease laden air through said inlet and forcing said air to said outlet along said flow path, said fan means having a circumferential fan surface; at least one membrane filter having a closed front surface, an open rear surface and a circumferential membrane surface, the circumferential membrane surface being connected to said vessel by an impervious wall for directing air through said circumferential membrane surface, said membrane filter disposed between said fan means and said outlet in said flow path to separate said grease from said air and permit said air to pass therethrough; and grease trap means disposed upstream of said membrane filter and between said membrane filter and said fan means, said trap means being defined on an interior wall of said vessel and arranged so that said grease laden air passes in one direction through said fan means and is deflected by said trap mans for causing collision of said grease laden air against said trap means and depositing said grease thereon, said air deflected so as to pass in an opposite recovery means for collecting and draining deposited grease out of said vessel; said membrane filter being thin enough such that relatively small grease particles once seized in said membrane filter are allowed to move by the action of said forced flow to the downstream surface of said membrane filter and coagulate to form thereat larger grease particles which are caused to leave from said membrane filter so as to be again carried on said forced flow toward said outlet.