Central compressor variable refrigerant flow air conditioning sysytem

a technology of air conditioning and compressor, which is applied in the direction of refrigeration components, lighting and heating apparatus, heating types, etc., can solve the problems of limited prior art refrigerant piping lengths and severe curtailment of prior art applications

Inactive Publication Date: 2013-12-19
MULTISTACK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0015]In view of the aforementioned drawbacks in certain prior art chiller heater systems, a new system is proposed which allows virtually unlimited distances between the compressor units and the evaporator heat exchangers.

Problems solved by technology

However, all prior art proposals were severely curtailed in their application, due primarily to a refrigerant piping length limitation related to the inherent characteristics of conventional compressor technology.
Prior art refrigerant piping lengths were limited by the particular systems ability to maintain proper oil return, due to the necessary entrainment of lubricating oil present in conventional refrigerant lines to enable operation of conventional compressors.

Method used

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  • Central compressor variable refrigerant flow air conditioning sysytem
  • Central compressor variable refrigerant flow air conditioning sysytem
  • Central compressor variable refrigerant flow air conditioning sysytem

Examples

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Embodiment Construction

[0023]FIG. 1 sets out an overall schematic view of the present application. Central station compressor 1 consists of magnetic levitation bearing types requiring no entrained oil in the refrigerant fluid. It compresses the oil free refrigerant and delivers it to a central condenser package 2 for removal of heat from the refrigerant. Thereafter the refrigerant travels to the various evaporators 3 which are placed in the building space at locations where heat is to be removed from the space.

[0024]Expansion valves 4 are disposed at appropriate locations upstream of the various evaporators 3.

[0025]By controlling the refrigerant flow to each evaporator 3, using an electronic control / flow control system (not shown), the amount of cooling can be carefully and specifically regulated at each cooling location.

[0026]By virtue of the present invention, the distances in the spans of the refrigerant piping are no longer limited in particular due to the absence of entrained oil in the refrigerant l...

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PUM

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Abstract

An oil-free central compressor variable refrigerant flow air conditioning system structure and method is set out. The system may be a new installation, or retrofit. Refrigerant piping spans are not limited by considerations of entrained oil flow.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The invention relates to an apparatus and method for providing refrigerant flow to a plurality of remote evaporators utilizing a single or centralized compressor station and a centralized condenser or condenser station.[0003]2. Description Of The Related Art[0004]In the past, various systems have been proposed for arranging an air conditioning system having a centralized compressor and / or centralized condenser station.[0005]However, all prior art proposals were severely curtailed in their application, due primarily to a refrigerant piping length limitation related to the inherent characteristics of conventional compressor technology.[0006]Prior art refrigerant piping lengths were limited by the particular systems ability to maintain proper oil return, due to the necessary entrainment of lubricating oil present in conventional refrigerant lines to enable operation of conventional compressors.[0007]The absolute maximum le...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F25B1/00
CPCF25B1/00F24F3/065F25B5/00F25B2500/01
Inventor PLATT, MARK
Owner MULTISTACK
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