Build-up monitoring system for refrigerated enclosures

a monitoring system and refrigerated enclosure technology, applied in the direction of defrosting, lighting and heating apparatus, domestic cooling apparatus, etc., can solve the problems of build-up of refrigerant, freezing of residual liquid to be drained by the drain basin, and leakage of refrigeran

Inactive Publication Date: 2008-08-21
DUBE SERGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because of the low temperatures associated with refrigerated enclosures, there is a risk that the residual liquid to be drained by the drain basin 13 will freeze.
A solid build-up can damage the refrigerated enclosure.
For instance, coils of the refrigeration unit 16 have broken because of ice build-ups in the drain, resulting in refrigerant leakage, emergency transfer of foodstuff, and even temporary store closure for maintenance of the refrigeration system.

Method used

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  • Build-up monitoring system for refrigerated enclosures
  • Build-up monitoring system for refrigerated enclosures
  • Build-up monitoring system for refrigerated enclosures

Examples

Experimental program
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Effect test

first embodiment

[0020]A plurality of configurations are considered for the build-up detector 22. In a first embodiment, the build-up detector 22 is a thermocouple or thermometer positioned within the drain basin 13 and / or in contact with the drain 14. As such, any ice build-up will result in a stabilization of temperature that will be identified by the monitoring system 20.

second embodiment

[0021]In a second embodiment, the build-up detector 22 is an optical sensor that will visually monitor the presence of an ice build-up beyond a predetermined level. Different types of optical sensors are considered with, for instance, emitters / receivers, etc.

third embodiment

[0022]In a third embodiment, sensors from other industries can be used in the monitoring system 20. For instance, U.S. Pat. No. 5,296,853, issued to Federow et al. on Mar. 22, 1994, discloses a laser ice detector, components of which can suitably be used to form the build-up detector 22. It is also considered to use infrared sensors.

[0023]The control system 21 receives detection data from the build-up detector 22, and transmits the data to the condition analyzer 23. The condition analyzer 23 is provided to defect ice build-up from the detection data. The condition analyzer 23 triggers an alarm signal once ice build-up beyond a predetermined level is identified by the condition analyzer 23.

[0024]In the embodiment in which the build-up detector 22 is a thermocouple, detection parameters are provided to the condition analyser 23 by way of a database 24 with such detection parameters. For instance, the detection parameters are a temperature set-point limit or a temperature range along w...

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PUM

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Abstract

A build-up monitoring system in combination with a refrigerated enclosure comprises a refrigerated enclosure having a drain, a drain basin and a refrigeration unit adapted to maintain refrigerating conditions in the refrigerated enclosure. A build-up detector is positioned with respect to the refrigerated enclosure so as to monitor a level of build-up in the drain/drain basin. A condition analyzer receives detection data from the build-up detector, the condition analyzer identifying from the detection data a build-up in the drain/drain basin requiring an intervention. An interface indicates the requirement for the intervention. A method is provided to identify a build-up requiring an intervention in a drain/drain basin of a refrigerated enclosure.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This patent application claims priority on U.S. Provisional Patent Application No. 60 / 890,290, filed on Feb. 16, 2007, by the present Applicant.BACKGROUND OF THE APPLICATION[0002]1. Field of the Application[0003]The present application relates to refrigerated enclosures of the type used in supermarkets and the like to score foodstuff and, more particularly, to a draining of liquid in such refrigerated enclosures.[0004]2. Background Art[0005]In supermarkets, grocery storages, and industrial storage, amongst other applications, refrigerated enclosures are commonly used to maintain foodstuff at suitable temperatures, or to freeze the foodstuff in order to preserve its freshness.[0006]Referring to FIG. 1 of the prior art, a refrigerated enclosure is generally illustrated at 10. The refrigerated enclosure 10 is defined by a casing 11 that forms an outer shell of the enclosure 10, and within which specific temperature conditions are maintained. ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F25D21/00F25D21/14
CPCF25D29/008F25D21/14
Inventor DUBE, SERGE
Owner DUBE SERGE
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