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Self-adapting energy saving control device with variable flux for compression type central conditioner

A central air-conditioning and energy-saving control technology, applied in heating and ventilation control systems, applications, heating methods, etc., can solve the problem of small temperature difference between chilled water supply and return water, small temperature difference between cooling water inlet and outlet, and large chilled water supply flow and cooling water inlet flow. , the maximum cooling load design allowance is large, etc., to achieve the effect of enhancing safety, prolonging equipment life, and reducing operating speed

Inactive Publication Date: 2003-05-07
贵州华城楼宇科技有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing central air-conditioning systems are all constant-flow systems, with a large design margin for the maximum cooling load, and the maximum cooling load occurs only for 10 to 20 hours each year. However, as long as the air-conditioning main unit is started, the chilled water pump, cooling water pump and cooling tower fan will all be activated. Running at 50Hz, that is, working at full load, the motors of the water pump and fan are rotating at high speed, which often results in large chilled water supply flow and cooling water inlet flow, while the chilled water supply and return water temperature difference and cooling water in and out The water temperature difference is small, resulting in a great waste of energy

Method used

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  • Self-adapting energy saving control device with variable flux for compression type central conditioner
  • Self-adapting energy saving control device with variable flux for compression type central conditioner
  • Self-adapting energy saving control device with variable flux for compression type central conditioner

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Embodiment Construction

[0014] Embodiment of the present invention: the adaptive variable flow controller (1) connects the chiller control subsystem (2), the chilled water pump control subsystem (3), and the cooling water pump control subsystem ( 4) and the cooling tower fan control subsystem (5), wherein the adaptive variable flow controller (1) consists of an industrial integration workstation (AMB-655HTT) (6), a communication interface (IPC5631) (7), an analog input Card (IPC5422) (8), analog output card (IPC5445B) (9). By detecting the chilled water supply and return water temperature, pressure difference and chilled water main pipe flow, these test data are sent to the programmable logic controller and adaptive variable flow controller (1), and the chilled water pump is adjusted through adaptive fuzzy calculation and control Rotational speed, the opening degree of the bypass valve (17) of the chilled water main pipe supply and return; by detecting the temperature and temperature difference betwe...

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Abstract

This invention discloses a compressed central air-conditioning adaptive variable flow energy saving control device composed of an adaptive variable flow controller, ice water control subsystem, frozen water control subsystem, cooling water control subsystem, cooling tower blower fan control subsystem, the adaptive variable flow controller connects with control subsystem of ice water device, frozen water pump, cooling water and blower fan of cooling tower capable of making every operational target to reach the most optimized.

Description

Technical field: [0001] The invention relates to an energy-saving control device for a central air conditioner. technical background: [0002] The existing central air-conditioning systems are all constant-flow systems, with a large design margin for the maximum cooling load, and the maximum cooling load occurs only for 10 to 20 hours each year. However, as long as the air-conditioning main unit is started, the chilled water pump, cooling water pump and cooling tower fan will all be activated. Running at 50Hz, that is, working at full load, the motors of the water pump and fan are rotating at high speed, which often results in large chilled water supply flow and cooling water inlet flow, while the chilled water supply and return water temperature difference and cooling water in and out The water temperature difference is small, resulting in a great waste of energy. Invention content: [0003] The object of the present invention is to provide a method of continuously and a...

Claims

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Application Information

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IPC IPC(8): F24F11/02
Inventor 蔡小兵顾见龙梁春生郭林
Owner 贵州华城楼宇科技有限公司
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