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Refrigeration monitoring system and method

A refrigeration circuit, subcooling technology, applied in the field of diagnostic systems, can solve the problem of not providing accurate indication of refrigerant temperature or pressure

Active Publication Date: 2010-08-11
EMERSON CLIMATE TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the placement of such sensors within the refrigeration system is susceptible to volumetric changes of the refrigerant disposed within the refrigeration system (ie, variations in the refrigeration system)
Since such systems are susceptible to changes in the volume of refrigerant disposed within the refrigeration system, when the refrigeration system and compressor experience a severely undercharged condition (i.e. low refrigerant condition) ), this temperature and pressure sensor will not provide an accurate indication of refrigerant temperature or pressure

Method used

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  • Refrigeration monitoring system and method
  • Refrigeration monitoring system and method
  • Refrigeration monitoring system and method

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Embodiment Construction

[0024] The following description is merely exemplary in nature, and it is not intended to limit the present disclosure, applications, or uses. It should be understood that in all the drawings, corresponding reference numerals indicate similar or corresponding parts and features.

[0025] Referring to the drawings, the compressor 10 is shown as being integrated in the refrigeration system 12. The protection and control system 14 is related to the compressor 10 and the refrigeration system 12 to monitor, control, protect and / or diagnose the compressor 10 and / or the refrigeration system 12. The protection and control system 14 uses a series of sensors to determine the non-measured operating parameters of the compressor 10 and / or the refrigeration system 12, and uses the non-measured operating parameters to monitor, control, protect and / or diagnose in combination with the measured operating parameters from the sensors The compressor 10 and / or the refrigeration system 12. Such non-m...

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Abstract

A system is provided and may include a compressor having a motor and a refrigeration circuit including an evaporator and a condenser fluidly coupled to the compressor. The system may further include a first sensor producing a signal indicative of one of current and power drawn by the motor, a second sensor producing a signal indicative of a saturated condensing temperature, and a third sensor producing a signal indicative of a liquid-line temperature. Processing circuitry may processes the current or power signal to determine a derived condenser temperature and may compare the derived condenser temperature to the saturated condensing temperature received from the second sensor to determine a subcooling associated with a refrigerant charge level of the refrigeration circuit.

Description

Technical field [0001] The present disclosure relates to compressors, and more specifically to diagnostic systems for compressors. Background technique [0002] The statements in this section only provide background information related to the present disclosure and may not constitute prior art. [0003] Compressors are used in a wide range of industrial and household applications to circulate refrigerant in refrigeration devices, heat pumps, HVAC or refrigeration systems (collectively referred to as "refrigeration systems") to provide desired heating and / or cooling effects. In any of the aforementioned systems, the compressor should provide consistent and efficient operation to ensure that the specific refrigeration system operates correctly. [0004] The refrigeration system and related compressors may include a protection system that selectively limits the power of the compressor to prevent the operation of the compressor and related components of the refrigeration system (ie, eva...

Claims

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Application Information

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IPC IPC(8): F25B49/00
CPCF25B39/04F25B49/02F25B2700/21163F25B45/00F25B2700/2116F25B2700/151F25B49/005F25B2700/04
Inventor 亨格·M·范
Owner EMERSON CLIMATE TECH INC
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