IP Library Granted Patent US 8,784,751
Granted Patent B2
US 8,784,751 · App. 12/452,724 · Granted Jul 22, 2014

Thermowell compound apparatus of high shell for residue hydrogen desulfurization

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Quick Facts
Patent No.
US 8,784,751
App. No.
12/452,724
Granted
Jul 22, 2014
Kind
B2
Abstract

The present invention relates to a thermowell blocking apparatus for a high-pressure reactor used in a desulfurization process, which can rapidly prevent noxious high-temperature and high-pressure gases from leaking out of a high-pressure reactor when the noxious high-temperature and high-pressure gases leak from the high-pressure reactor due to unexpected damage occurring to a thermowell used for measuring a reaction temperature of a catalyst. The thermowell blocking apparatus can prevent the economic losses caused by the stoppage of the desulfurization process, and can reduce consequential damages to human life, the environment, and the like.

Claims (21)

1. A thermowell blocking apparatus for a high-pressure reactor used in a desulfurization process, comprising:

a protection tube passing through a high-pressure reactor;

a thermowell provided at a front end of the protection tube to be immersed in a catalyst charged

in the high-pressure reactor;

a temperature sensor provided in the protection tube to measure a reaction temperature of the catalyst, the temperature sensor being connected with the thermowell;

leakage prevention means provided at the protection tube exposed to the outside of the high pressure reactor to block a leakage path of noxious gases; and

a boss adhered to an inner surface of the high-pressure reactor to include the protection tube therein;

wherein the leakage prevention means includes a compression blocking unit which is provided at a rear end of the protection tube and blocks a leakage path of noxious gases, and the leakage path of noxious gases is blocked by providing the leakage prevention means at the protection tube and then welding them together,

wherein the rear end of the protection tube and the compression blocking unit are provided with screw threads, respectively, to rapidly block the leakage path and are then welded.

2. A thermowell blocking apparatus for a high-pressure reactor used in a desulfurization process, comprising:

a protection tube passing through a high-pressure reactor;

a thermowell provided at a front end of the protection tube to be immersed in a catalyst charged in the high-pressure reactor;

a temperature sensor provided in the protection tube to measure a reaction temperature of the catalyst, the temperature sensor being connected with the thermowell;

leakage prevention means provided at the protection tube exposed to the outside of the high-pressure reactor to block a leakage path of noxious gases; and

a boss adhered to an inner surface of the high-pressure reactor to include the protection tube therein;

wherein the leakage prevention means comprises:

an extended protection tube provided at a rear end of the protection tube; and

an auxiliary compression blocking unit which is provided at a rear end of the extended protection tube and blocks a leakage path of noxious gases,

wherein the rear end of the extended protection and the auxiliary compression blocking unit are provided with screw threads, respectively, to rapidly block the leakage path and then welded.

3. The thermowell blocking apparatus according to claim 1 , wherein the compression blocking unit is covered with a sealing cap having a sealing space and thus isolated, and the sealing space is charged with a sealing agent.

4. The thermowell blocking apparatus according to claim 2 , wherein the auxiliary compression blocking unit is covered with a sealing cap having a sealing space and thus isolated, and the sealing space is charged with a sealing agent.

Assignments (4)
CORRECTIVE ASSIGNMENT TO CORRECT THE INCORRECT PATENT NUMBER 7448700 AND REPLACE IT WITH 7488700 PREVIOUSLY RECORDED ON REEL 026619 FRAME 0330. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Recorded Apr 11, 2016
From: SK ENERGY CO., LTD.
To: SK INNOVATION CO., LTD.
Reel/Frame 038406/0201 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 15, 2011
From: SK INNOVATION CO., LTD.
To: SK ENERGY CO., LTD.
Reel/Frame 026599/0289 →
CHANGE OF NAME Recorded Jul 14, 2011
From: SK ENERGY CO., LTD.
To: SK INNOVATION CO., LTD.
Reel/Frame 026619/0330 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 18, 2010
From: YOON, HYUNG NO; LEE, SANG MO; KIM, JIN GYU; HUH, MOCK; KIM, CHOO JEI
To: SK ENERGY CO., LTD.
Reel/Frame 023829/0848 →