(19)
(11) EP 3 995 744 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
22.06.2022 Bulletin 2022/25

(43) Date of publication:
11.05.2022 Bulletin 2022/19

(21) Application number: 21848122.4

(22) Date of filing: 23.08.2021
(51) International Patent Classification (IPC): 
F24C(2006.01)
(86) International application number:
PCT/CN2021/113985
(87) International publication number:
WO 2022/042462 (03.03.2022 Gazette 2022/09)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 27.08.2020 CN 202010876691

(71) Applicant: SHANGHAI DUOHUAN OIL-SMOKE PURIFICATION EQUIPMENT CO., LTD.
Shanghai 201801 (CN)

(72) Inventors:
  • HE, Yang
    Shanghai 201801 (CN)
  • HE, Weibin
    Shanghai 201801 (CN)

(74) Representative: Patentship Patentanwaltsgesellschaft mbH 
Elsenheimerstraße 65
80687 München
80687 München (DE)

   


(54) INTERNAL CIRCULATION-TYPE LAMPBLACK PURIFIER


(57) Disclosed is an internal circulation type lampblack purifier. The internal circulation type lampblack purifier comprises a shell, an air inlet, an air outlet, an air inlet channel, an air outlet channel, a fan device, a mechanical grease separator, a gas purification device and a cooling device, wherein the air inlet and the air outlet are arranged on the shell; the mechanical grease separator is arranged at the air inlet or in the air inlet channel; and the cooling device is arranged at the air outlet and comprises a water supply pipe, water spray guide plates, a water mist baffle plate, a spray pipe and a water receiving tank, the spray pipe communicates with the water supply pipe, spray nozzles are arranged on the spray pipe and face the water spray guide plates, the water receiving tank is located below the water spray guide plates, and the water mist baffle plate is provided with blades at certain gaps. According to the internal circulation type lampblack purifier, the cooling device is arranged, so that the temperature of discharged gas is effectively reduced, high-temperature water vapor in the discharged gas is eliminated, and the influence of the high-temperature water vapor on the indoor environment is prevented.