Title:
COOLING APPARATUS FOR CASTING MEDIUM AND LARGE-SIZED PROPELLERS
Document Type and Number:
WIPO Patent Application WO/2022/155863
Kind Code:
A1
Abstract:
A cooling apparatus for casting medium and large-sized propellers, comprising a supercooling box (9); a liquid conveying pipeline (4) which is uniformly distributed in a snakelike array is disposed in the supercooling box; a liquid nitrogen storage tank (2) is disposed above the supercooling box, and the liquid nitrogen storage tank is connected to a liquid nitrogen pump (1), wherein one end of the liquid conveying pipeline communicates with the liquid nitrogen storage tank, and the other end of the liquid conveying pipeline is connected to the liquid nitrogen pump; a plurality of air intake fans (3) are disposed on the right side of the supercooling box, a cooling box (6) is disposed on the left side of the supercooling box, a casting is disposed in the cooling box, and a plurality of exhaust fans (7) are disposed on the left side of the cooling box; a plurality of groups of dustproof filter screens (8) are disposed on the outer sides of the air intake fans and the exhaust fans, and the dustproof filter screens are disposed in slots on a box wall. The described cooling apparatus utilizes liquid nitrogen to efficiently cool castings, and uses detachable dustproof filter screens, which are convenient to replace, can prevent dust from sticking to air intake fans and exhaust fans, and keeps equipment clean, thus preventing obstructions to airflow caused by dust being attached to fan blades.
Inventors:
WANG XIANGLAI (CN)
YUAN JIANJUN (CN)
LU BIN (CN)
XIAN CHAOWEN (CN)
YUAN JIANJUN (CN)
LU BIN (CN)
XIAN CHAOWEN (CN)
Application Number:
PCT/CN2021/073172
Publication Date:
July 28, 2022
Filing Date:
January 22, 2021
Export Citation:
Assignee:
ZHENJIANG TONGZHOU PROPELLER CO LTD (CN)
International Classes:
B22D30/00
Foreign References:
| CN211864402U | 2020-11-06 | |||
| CN206788730U | 2017-12-22 | |||
| CN209962840U | 2020-01-17 | |||
| US20110317357A1 | 2011-12-29 | |||
| JP2008295142A | 2008-12-04 | |||
| KR100345954B1 | 2002-08-01 |
Attorney, Agent or Firm:
ZHENJIANG JIDE PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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