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Cold station structure and central air-conditioning system

A central air-conditioning system and cooling station technology, applied in air-conditioning systems, water shower coolers, space heating and ventilation, etc., can solve problems such as inability to refrigerate and chillers cannot be started, and achieve the effect of improving energy utilization.

Pending Publication Date: 2021-03-26
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a cold station structure and a central air-conditioning system to solve the technical problem that the chiller in the central air-conditioning existing in the prior art cannot be started and cannot be refrigerated when the ambient temperature is too low in winter; among the many technical solutions provided by the present invention The many technical effects that can be produced by the optimal technical solution are detailed below.

Method used

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  • Cold station structure and central air-conditioning system
  • Cold station structure and central air-conditioning system
  • Cold station structure and central air-conditioning system

Examples

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Effect test

Embodiment 1

[0046] With the above in mind, see Figure 1-Figure 3 As shown, this embodiment provides a cold station structure, including a connected chiller 2 and a cooling tower 1, wherein: the cooling tower 1 is connected to the air-conditioning terminal 3, and when the cooling tower 1 and the air-conditioning terminal 3 are connected, use To provide the air-conditioning terminal 3 with circulating cooling water cooling after heat exchange with the external environment; and the cooling tower 1 and the air-conditioning terminal 3 can be blocked when the chiller 2 provides chilled water cooling to the air-conditioning terminal 3 .

[0047] In the cold station structure of this embodiment, the cooling tower 1 is connected to the air conditioner terminal 3, and when the ambient temperature is low in winter and cannot start the chiller 2 to cool the air conditioner terminal 3, the cooling tower 1 can be directly exchanged with the external low temperature environment. The cooling water suppl...

Embodiment 2

[0068] For the above problems, improve on the basis of the above-mentioned embodiment 1, see figure 2 and image 3 , there is a cooling water coil 8 for exchanging heat with the external environment in the cooling tower 1 in this embodiment, the water inlet of the cooling water coil 8 is connected to the inner side of the cooling tower water inlet 11, and its water outlet is connected to the cooling tower water outlet 12 inner connection. i.e., see figure 2 and image 3 , the water inlet of the cooling water coil 8 communicates with the water inlet main pipe 81 , and the water outlet of the cooling water coil 8 communicates with the water outlet main pipe 82 .

[0069] The cooling tower 1 in this embodiment adopts a closed structure, that is, after the cooling water enters the cooling tower 1, it flows in the cooling water coil 8, and exchanges heat with the external environment during the flow, and passes through the cooling tower after recooling. Water outlet 12 flows ...

Embodiment 3

[0075] This embodiment provides a central air-conditioning system, including the above-mentioned cold station structure.

[0076] The central air-conditioning system in this embodiment can use the cooling tower 1 as a natural cooling source and the chiller 2 as a mechanical cooling source to cool the air-conditioning terminal 3 . In summer, the chiller 2 can be started to block the communication between the cooling tower 1 and the air conditioner terminal 3; in winter and other low temperature environments, when the chiller 2 cannot be started, the cooling tower 1 can be directly connected to the air conditioner terminal after exchanging heat with the external low temperature environment 3. Provide cooling water for cooling, improve energy utilization, and ensure that the air-conditioning terminal 3 can also cool when the chiller 2 cannot be started.

[0077] As an alternative implementation, see figure 1 As shown, the water chiller 2, the cooling tower 1, and the pump assemb...

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Abstract

The invention provides a cold station structure and a central air conditioning system, relates to the technical field of refrigeration, and solves the technical problems that a water chilling unit ina central air conditioner cannot be started and cannot refrigerate due to excessively-low environment temperature in winter. The cold station structure comprises a water chilling unit and a cooling tower which are connected with each other; the cooling tower is connected with an air conditioner terminal, and when the cooling tower communicates with the air conditioner terminal, the cooling tower is used for providing circulating cooling water subjected to heat exchange with the external environment for the air conditioner terminal for refrigeration; the cooling tower and the air conditioner terminal can be blocked when the water chilling unit provides chilled water for the air conditioner terminal for refrigeration. According to the structure, the cooling tower is connected with the air conditioner terminal, and when the water chilling unit cannot be started to refrigerate the air conditioner terminal due to low environment temperature in winter, cooling water in the cooling tower after heat exchange with the external low-temperature environment can be directly supplied to the air conditioner terminal for refrigeration; according to the cold station structure, cold sources can be switched according to different environments, refrigeration can be achieved in summer and winter, the situation that the air conditioner terminal cannot be refrigerated when the water chilling unit cannot be started in winter is prevented, and the energy utilization rate is increased.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a cold station structure and a central air-conditioning system. Background technique [0002] At present, many occasions require year-round refrigeration, such as computer rooms, base stations and other places, which require the use of central air-conditioning systems. Traditional central air conditioners include refrigeration hosts (chillers), cooling water systems (including cooling pumps, cooling towers) and chilled water systems (including freezing pumps). Among them, the water chiller includes a compressor, an evaporator, and a condenser that circulate refrigerant. The refrigerant is compressed in the compressor to form a high-temperature and high-pressure gas. After entering the condenser to condense, it evaporates in the evaporator and absorbs heat while cooling Chilled water inside for cooling. [0003] In the chilled water system, the water outlet of the evaporat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F3/00F24F5/00F28C1/14
CPCF24F3/00F24F5/0046F28C1/14
Inventor 王娟王升孙栋军吕久洲雷伟锋
Owner GREE ELECTRIC APPLIANCES INC
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