US5139734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin processing system
Assignee: ORTHOLOGIC Inc
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Filing: 1990-11-26
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Granted: 1992-08-18
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Expires: 2010-11-26
Abstract
Abstract A unique resin processing system for providing and removing resin to large demineralizer vessels during chemical decontamination of nuclear reactor primary systems is disclosed. Resin is premeasured in a batching tank for accurate filling of demineralilzer resin bed while minimizing personnel radioactivity exposure. Sluice water transfers spent resin to a storage tank and, thereafter, is recycled for subsequent sluicing operations. Spent resin from the storage tank is periodically delivered to high integrity containers for ultimate disposal.
Inventors
- 👤 Gary J. Corpora
- 👤 James S. Schlonski
- 👤 Phillip E. Miller
- 👤 Frank I. Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:30
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/28; G21C19/30; G21C19/307; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
242 words
A resin processing system for use in chemical decontamination of nuclear reactor primary systems comprising: a fresh resin supply tank at least large enough to hold sufficient resin for performing a particular decontamination step; a batching tank sized to hold an amount of resin mixed with water sufficient to fill a single demineralizer resin bed; a fresh resin pump connected to the fresh resin supply tank and the batching tank capable of transporting fresh resin from the fresh resin supply tank to the batching tank; a plurality of demineralizers wherein process fluids are demineralized; a resin feed pump connected to the batching tank capable of transporting fresh resin from the batching tank to demineralizer resin bed; a movable connection means connecting the resin feed pump to one of the plurality of demineralizers; a sluice water supply tank; a sluice water pump connected to the sluice water supply tank and the plurality of demineralizers capable of pumping sluice water to each of the plurality of demineralizers; a spent resin storage tank connected to each of said plurality of demineralizers to receive sluice water and spent resin from the demineralizers; a recycle pump connected to an outlet of the spent resin storage tank and having a pump outlet connected to the sluice water supply tank; and a screen at the outlet of the spent resin storage tank to retain spent resin within the spent resin storage tank while allowing sluice water to be recycled.
Claim 2
Dependent Claim
242 words
A resin processing system for use in chemical decontamination of nuclear reactor primary systems comprising: a fresh resin supply tank at least large enough to hold sufficient resin for performing a particular decontamination step; a batching tank sized to hold an amount of resin mixed with water sufficient to fill a single demineralizer resin bed; a fresh resin pump connected to the fresh resin supply tank and the batching tank capable of transporting fresh resin from the fresh resin supply tank to the batching tank; a plurality of demineralizers wherein process fluids are demineralized; a resin feed pump connected to the batching tank capable of transporting fresh resin from the batching tank to demineralizer resin bed; a movable connection means connecting the resin feed pump to one of the plurality of demineralizers; a sluice water supply tank; a sluice water pump connected to the sluice water supply tank and the plurality of demineralizers capable of pumping sluice water to each of the plurality of demineralizers; a spent resin storage tank connected to each of said plurality of demineralizers to receive sluice water and spent resin from the demineralizers; a recycle pump connected to an outlet of the spent resin storage tank and having a pump outlet connected to the sluice water supply tank; and a screen at the outlet of the spent resin storage tank to retain spent resin within the spent resin storage tank while allowing sluice water to be recycled.
Claim 3
Dependent Claim
28 words
The resin processing system of claim 1 wherein one or more of the fresh resin pump, the resin feed pump, and the recycle pump are air-operated diaphragm pumps.
Claim 4
Dependent Claim
24 words
The resin processing system of claim 1 further comprising a sluice water filter located between the sluice water pump and the plurality of demineralizers.
Claim 5
Dependent Claim
58 words
The resin processing system of claim 1 further comprising: a second, unscreened outlet in the spent resin storage tank connected to the recycle pump; disposal means connected to the pump outlet of the recycle pump; and means for selectively directing material pumped by the recycle pump to either the sluice water supply tank or to the disposal means.
Claim 6
Dependent Claim
31 words
The resin processing system of claim 1 wherein a filtrate collection tank of a chemical decontamination sub-system of the nuclear reactor primary system is connected to the spent resin storage tank.
Claim 7
Dependent Claim
31 words
The resin processing system of claim 1 wherein the sluice water supply tank and the sluice water pump are connected to a contamination waste tank of the nuclear reactor primary system.
Claim 8
Dependent Claim
249 words
A nuclear reactor having a primary system wherein the primary system has a chemical decontamination sub-system including a resin processing system comprising: a fresh resin supply tank at least large enough to hold sufficient resin for performing a particular decontamination step; a batching tank sized to hold an amount of resin mixed with water sufficient to fill a single demineralizer resin bed; a fresh resin pump connected to the fresh resin supply tank and the batching tank capable of transporting fresh resin from the fresh resin supply tank to the batching tank; a plurality of demineralizers wherein process fluids are demineralized; a resin feed pump connected to the batching tank capable of transporting fresh resin from the batching tank to demineralizer resin bed; a movable connection means connecting the resin feed pump to one of the plurality of demineralizers; a sluice water supply tank; a sluice water pump connected to the sluice water supply tank and the plurality of demineralizers capable of pumping sluice water to each of the plurality of demineralizers; a spent resin storage tank connected to each of said plurality of demineralizers to receive sluice water and spent resin from the demineralizers; a recycle pump connected to an outlet of the spent resin storage tank and having a pump outlet connected to the sluice water supply tank; and a screen at the outlet of the spent resin storage tank to retain spent resin within the spent resin storage tank while allowing sluice water to be recycled.
Claim 9
Dependent Claim
249 words
A nuclear reactor having a primary system wherein the primary system has a chemical decontamination sub-system including a resin processing system comprising: a fresh resin supply tank at least large enough to hold sufficient resin for performing a particular decontamination step; a batching tank sized to hold an amount of resin mixed with water sufficient to fill a single demineralizer resin bed; a fresh resin pump connected to the fresh resin supply tank and the batching tank capable of transporting fresh resin from the fresh resin supply tank to the batching tank; a plurality of demineralizers wherein process fluids are demineralized; a resin feed pump connected to the batching tank capable of transporting fresh resin from the batching tank to demineralizer resin bed; a movable connection means connecting the resin feed pump to one of the plurality of demineralizers; a sluice water supply tank; a sluice water pump connected to the sluice water supply tank and the plurality of demineralizers capable of pumping sluice water to each of the plurality of demineralizers; a spent resin storage tank connected to each of said plurality of demineralizers to receive sluice water and spent resin from the demineralizers; a recycle pump connected to an outlet of the spent resin storage tank and having a pump outlet connected to the sluice water supply tank; and a screen at the outlet of the spent resin storage tank to retain spent resin within the spent resin storage tank while allowing sluice water to be recycled.
Claim 10
Dependent Claim
27 words
The nuclear reactor of claim 7 wherein one or more of the fresh resin pump, the resin feed pump, and the recycle pump are air-operated diaphragm pumps.
Claim 11
Dependent Claim
28 words
The nuclear reactor of claim 7 wherein the resin processing system further comprises a sluice water filter located between the sluice water pump and the plurality of demineralizers.
Claim 12
Dependent Claim
62 words
The nuclear reactor of claim 7 wherein the resin processing system further comprises: a second, unscreened outlet in the spent resin storage tank connected to the recycle pump; disposal means connected to the pump outlet of the recycle pump; and means for selectively directing material pumped by the recycle pump to either the sluice water supply tank or to the disposal means.
Claim 13
Dependent Claim
24 words
The nuclear reactor of claim 7 wherein a filtrate collection tank of the chemical decontamination sub-system is connected to the spent resin storage tank.
Claim 14
Dependent Claim
29 words
The nuclear reactor of claim 7 wherein the sluice water supply tank and the sluice water pump are connected to a decontamination waste tank of the chemical decontamination sub-system.
References Cited (Backward Citations)
US2767140A
Cited
US3976541A
Cited
US3928192A
Cited
US3923460A
Cited
US4049548A
Cited
US4228013A
Cited
US4383920A
Cited
US4587043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-08-18 | 1996-02-17 | 1996-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-18 | 2000-02-17 | 2000-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-18 | 2004-02-17 | 2004-08-18 | $7700.00 | Window Closed / Lapsed |