Title:
RADIAL FLOW COLD TRAP
Document Type and Number:
WIPO Patent Application WO/2023/155610
Kind Code:
A1
Abstract:
A radial flow cold trap, which comprises a housing (1), a heat exchange assembly (2), a flow diverting manifold group (3), a flow collecting manifold group (4), and a gas collecting pipe (5); the housing (1) is provided with an open end (11), a first end plate (12) and an opposing second end plate (13) are provided in the housing (1), a line connecting centers of the first end plate (12) and the second end plate (13) forms a first center line (1-1), and the first center line (1-1) is parallel or coincident with the central axis of the housing (1); the heat exchange assembly (2) is arranged in the housing (1), the heat exchange assembly (2) comprises a plurality of groups of heat exchange tube bundles connected in parallel, the heat exchange tube bundles comprise a plurality of heat exchange tubes (21) connected in series, and axes of the plurality of heat exchange tubes (21) are radially and symmetrically arranged relative to the first center line (1-1). A structure of the radial flow cold trap causes a gas flow entering into the housing (1) to enter from the periphery of a space enclosed by the first end plate (12) and the second end plate (13) and flow inward in the radial direction; a desublimable vapor is desublimated on surfaces of the heat exchange tubes (21), and a non-desublimable gas is collected into the gas collecting pipe (5) and extracted. The technical problems in the prior art of a cold trap occupying a large amount of space, having low heat exchange area utilization, being prone to ice blockage, and having large gas flow resistance can be solved.
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Inventors:
LU YUNZHUANG (CN)
WANG YITIAN (CN)
WANG YITIAN (CN)
Application Number:
PCT/CN2022/143112
Publication Date:
August 24, 2023
Filing Date:
December 29, 2022
Export Citation:
Assignee:
LU YUNZHUANG (CN)
WANG YITIAN (CN)
WANG YITIAN (CN)
International Classes:
F28D7/06; B01D8/00; F28F9/02
Domestic Patent References:
| WO2016166079A1 | 2016-10-20 |
Foreign References:
| CN216986361U | 2022-07-19 | |||
| CN110595160A | 2019-12-20 | |||
| CN215538550U | 2022-01-18 | |||
| CN201551867U | 2010-08-18 |
Attorney, Agent or Firm:
KINGSOUND & PARTNERS (CN)
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