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Central water cooling direct evaporation variable ventilation quantity combined air conditioner system

A combined air conditioner and evaporative technology, which is applied in the field of variable air volume air conditioning system and variable air volume combined air conditioning system, and can solve the problem of limited oil return of refrigerant lubricating oil

Inactive Publication Date: 2004-02-11
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0007] In order to overcome the deficiencies and defects of the prior art, the present invention adopts the method of centralized cooling water for cooling, and solves the limited problem of refrigerant delivery and lubricating oil return of the direct evaporative air conditioner, so that the direct evaporative-variable air volume combined air conditioner The system can be used in buildings of all sizes

Method used

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  • Central water cooling direct evaporation variable ventilation quantity combined air conditioner system
  • Central water cooling direct evaporation variable ventilation quantity combined air conditioner system

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Embodiment Construction

[0013] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0014] Such as figure 1 As shown, the present invention mainly includes a cooling tower 1, a cooling water circulation pump 2, an electric water valve 3, a fresh air outlet 4, a direct evaporative surface cooler 5, a variable speed air supply fan 6, a return air outlet 7, a water-cooled condensing unit 8, and an air supply Air pipe 9, variable air volume terminal 10, suspended ceiling 11, air conditioning area 12, main cooling water supply pipeline 13, refrigerant pipeline 14, main cooling water supply branch pipe 15.

[0015] The cooling tower 1 is connected to the main cooling water supply pipeline 13, and two cooling water circulation pumps 2 are respectively arranged in the main cooling water supply pipeline 13; Electric water valves 3 are installed on the cooling water main water supply branch pipes 15; each cooling water main water...

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Abstract

The combined air conditioner system includes mainly cooling tower, main cooling water supply pipeline, directly evaporating air conditioner, water cooled condensers, variable ventilation quantity pipeline, variable ventilation quantity, etc. Cooling water after being cooled in the cooling tower is pumped into various water cooled condensers to take the condensation heat via the heat exchange with the refrigerant and then returned to the cooling tower for concentrative cooling. The refrigerant after being water cooled in various condensers is throttled in expansion valves and then fed to corresponding directly evaporating air conditioner to absorb heat and evaporate. Air from the fresh air port and air from the returned air port are mixed and mixed air is cooled and dehumidified before being fed via the variable speed air blower to various variable ventilation terminals, which regulate the ventilation quantity to various air conditioned area based on temperature setting.

Description

Technical field: [0001] The invention relates to a variable air volume air conditioning system, in particular to a variable air volume combined air conditioning system using centralized water cooling and direct evaporation, which belongs to the technical field of building environment equipment and refrigeration engineering. Background technique: [0002] Because the variable air volume air conditioning system has the characteristics of tracking load, better indoor thermal comfort and can significantly save fan energy consumption under partial load, its application in buildings is becoming more and more extensive. Conventional variable air volume air-conditioning systems basically use refrigerant water as the refrigerant-carrying air conditioner, that is, the host (refrigerator) cools the refrigerant water and sends it to each air conditioner, and then the low-temperature refrigerant water passes through the air / water meter cooler For air cooling and dehumidification treatmen...

Claims

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Application Information

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IPC IPC(8): F24F5/00
Inventor 晋欣桥夏清
Owner SHANGHAI JIAO TONG UNIV
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