Integrated adaptive capacity control for a steam turbine powered chiller unit

一种汽轮机、冷却器的技术，应用在发动机控制、使用涡轮的压缩机器、主动/预测/预期控制等方向，能够解决效率损失、限制防涌浪、冷却器系统操作效率低下等问题，达到防止不安全运行的效果

Inactive Publication Date: 2007-02-07
YORK INT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This independent operation of these controls often results in inefficient operation of turbine-driven chiller systems because the operation of one control on one component of the system will preclude or limit the efficiency gained from the operation of another control on another component of the system
In addition to efficiency losses, the use of separate controls also limits effective surge protection in chiller system compressors because the separate system cannot measure or monitor the system pressure differential (condenser pressure minus evaporator pressure)

Method used

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  • Integrated adaptive capacity control for a steam turbine powered chiller unit
  • Integrated adaptive capacity control for a steam turbine powered chiller unit
  • Integrated adaptive capacity control for a steam turbine powered chiller unit

Examples

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Embodiment Construction

[0024] exist figure 1 In -3, a general system to which the present invention is applicable is shown by way of example. As shown, an HVAC, refrigeration, or chiller system 10 includes a compressor 12, a steam turbine 14, a refrigerant condenser 16, a water cooler or evaporator 18, a steam condenser 20, an expansion device 22, and a control panel or controller 90. The operation of the control panel 90 will be discussed in more detail below. Chiller system 10 further includes a compressor lubrication system (not shown) and a turbine lubrication system (not shown). A conventional liquid cooler system 10 consists of many in figure 1 - other features not shown in 3. These features have been specifically omitted for simplicity and ease of illustration.

[0025] In a preferred embodiment, the "structural frame" stacks or vertically arranges the major components of the chiller system 10 to provide a prepackaged unit that occupies less space in a smaller footprint than a field-fabr...

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PUM

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Abstract

A control system for a steam turbine driven chiller unit is provided. The control system automatically utilizes the full range of the governor, compressor pre-rotation vanes, and hot gas bypass valve capabilities to control the capacity of the chiller and provide anti-surge and override control functions to prevent undesirable operational ranges while maintaining maximum efficiency of operation.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 60 / 539,014, filed January 23,2004. technical field [0003] The present application relates generally to control systems for chiller units and, more particularly, to control systems for steam turbine driven chiller units that integrate the control operations of both the steam turbine system and the chiller unit. Background technique [0004] While most heating, ventilation and air conditioning (HVAC), refrigeration, or chiller systems use an electric motor to drive a corresponding compressor (etc.) in the chiller system, some chiller systems may use a steam turbine to drive the compressor. Typically, these turbine driven chiller systems require extensive site investigation to install and connect the chiller system to the steam turbine system. Some earlier steam turbine driven chiller units or systems included packaging of the steam turbine on the ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K13/02F01K17/04F25B1/08F01D15/08F04D27/02F25B11/00F25B27/00F25B49/02
CPCF25B49/02Y02B30/741F04D27/0261F25B11/00F04D27/0246F25B2600/2501F25B2700/195F05B2270/404F25B27/00F05D2270/44F25B2700/197F01D15/08F25B2600/0253Y02B30/70F01K13/02F25B1/08F01K17/04
Inventor 丹尼斯·L·谢弗拉塞尔·M·汤普森斯蒂芬·M·卡奇马埃里克·J·斯迈德布伦达·J·罗伯茨丹尼尔·J·彼特罗斯基瑞安·P·艾森史密斯
Owner YORK INT CORP
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