Cold trap

• US 10,413,863 B2
• Filed: 02/28/2017
• Issued: 09/17/2019
• Est. Priority Date: 11/22/2016
• Status: Expired due to Fees

• Current Assignee: Samheung Energy Co., Ltd.
• Original Assignee: Samheung Energy Co., Ltd.
• Inventors: Park, Kwang Sin, Kim, Hye Joong, Kim, Byeong San
• Primary Examiner(s): King, Brian M
• Application Number:
  US15/445,611
• Publication Number:
  US 20180140995A1
• Time in Patent Office: 931 Days
• CPC Class Codes: B01D 53/265 by refrigeration (condensation)

Abstract

A cold trap includes: a main body connected to an exhaust line between a vacuum dryer and a vacuum pump; a trap portion installed in the main body and that freezes evaporated steam supplied from the vacuum dryer; and an insulation portion installed between the main body and the trap portion and that blocks cold of the trap portion from being conducted to the main body.

Claims

1. A cold trap, comprising:

a main body connectable to an exhaust line between a vacuum dryer and a vacuum pump, the main body having an upper horizontal surface;

a trap portion suspended by a flange of the trap portion through a first receiving hole in the upper horizontal surface to extend at least partially within the main body, the trap portion capable of freezing evaporated steam supplied from the vacuum dryer when the main body is connected to the exhaust line; and

an insulation portion installed between the upper horizontal surface of the main body and the trap portion and that blocks cold of the trap portion from being conducted to the upper horizontal surface of the main body, the insulation portion supporting the flange.

2. The cold trap of claim 1 where the insulation portion defines a cavity and structurally supports the flange of the trap portion around the periphery of the cavity and in a spaced-apart relationship from the main body portion.

3. The cold trap of claim 2 where the insulation portion prevents any contact between the trap portion and the main body.

4. The cold trap of claim 1 where the flange of the trap portion encircles an upper periphery of the trap portion.

5. The cold trap of claim 1, wherein

the insulation portion has a second receiving hole penetrated in a vertical direction and is received at the upper horizontal surface of the main body such that the second receiving hole is positioned above the first receiving hole, and

an upper edge of the trap portion is received at an upper surface of the insulation portion while the trap portion is received in the first receiving hole and the second receiving hole.

6. The cold trap of claim 2, wherein

the cold trap further comprises a pressing fixing portion that comes in dose contact with the main body by pressing the insulation portion while being sequentially fastened to a first fastening hole associated with the insulation portion and a second fastening hole associated with the main body, the first fastening hole and the second fastening hole aligned with each other in a vertical direction while being penetrated in a vertical direction.

7. The cold trap of claim 1 where the insulation portion completely separates the trap portion from the main body.

8. The cold trap of claim 1, wherein

the cold trap further comprises a pressing fixing portion that comes in close contact with the main body by pressing the insulation portion while being sequentially fastened to a first fastening hole associated with the insulation portion and a second fastening hole associated with the main body, the first fastening hole and the second fastening hole aligned with each other in a vertical direction while being penetrated in a vertical direction.

9. The cold trap of claim 1, wherein the main body defines a first receiving hole for the trap portion, the insulation portion defines a second receiving hole for the trap portion, and the trap portion, insulation portion, and main body each include a plurality of respective fastening apertures that, when coaxially aligned, are configured to allow the trap portion to be secured to the main body through the first and second receiving holes such that there is no contact between the main body and the trap portion.

10. A cold trap comprising:

a main body, the main body having an upper horizontal surface defining a receiving hole;

a trap portion having a trap chamber suspended downwardly through the receiving hole from the horizontal surface of the main body, the trap chamber rigidly retained within the receiving hole and connectable to an exhaust line between a vacuum dryer and a vacuum pump to freeze evaporated steam supplied from the vacuum dryer when the main body is connected to the exhaust line;

where

the trap portion having a support flange that is supported by but spaced apart from the upper surface of the main body to prevent heat exchange between the main body and the trap portion.

11. The cold trap of claim 10 including an insulation portion interposed between the trap portion and the main body.

12. The cold trap of claim 11 where the horizontal surface is a flanged surface supported by the insulation portion.

13. The cold trap of claim 11 where the insulation portion has a second receiving hole configured such that the trap portion extends through the first receiving hole and the and second receiving hole without contacting the main body.

14. The cold trap of claim 11, wherein

the cold trap further comprises a pressing fixing portion that comes in close contact with the main body by pressing the insulation portion while being sequentially fastened to a first fastening hole associated with the insulation portion and a second fastening hole associated with the main body, the first fastening hole and the second fastening hole aligned with each other in a vertical direction while being penetrated in a vertical direction.

15. The cold trap of claim 11 where the insulation portion completely separates the trap portion from the main body.

16. The cold trap of claim 11, wherein the insulation portion defines a second receiving hole for the trap portion, and the trap portion, insulation portion, and main body each include a plurality of respective fastening apertures that, when coaxially aligned, are configured to allow the trap portion to be secured to the main body through the receiving hole and the second receiving hole such that there is no contact between the main body and the trap portion.

17. The cold trap of claim 10 where there is no contact between the trap portion and the main body.