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Central air-conditioning system of ice slurry cold storage

A central air-conditioning system and cooling system technology, applied in air-conditioning systems, space heating and ventilation, heating methods, etc., to achieve the effects of flexible settings, low requirements, and low outlet water temperature

Inactive Publication Date: 2010-01-20
深圳力合节能技术有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to introduce an ice slurry cold storage central air-conditioning system based on dynamic ice-making technology to solve the shortcomings of the existing static ice-storage central air-conditioning system

Method used

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  • Central air-conditioning system of ice slurry cold storage
  • Central air-conditioning system of ice slurry cold storage
  • Central air-conditioning system of ice slurry cold storage

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Such as figure 2As shown, this embodiment is an engineering case of a single ice storage tank, and adopts a combined preheating system of air-conditioning return water and cooling water. ℃ to 9 ℃ chilled water, the cooling water inlet and outlet are provided with a preheating plate heat exchanger 7 and a cooling tower 9 in parallel, and a filter, a valve and a cooling water pump 8 are arranged in the outlet pipeline of the cooling tower 9 . The chilled water inlet and outlet of the refrigeration host 1 is connected in parallel with an ice-making plate heat exchanger 3, and the pipeline is connected in series with a load cooling pump 2, a filter, a valve, and filled with about 25% ethylene glycol aqueous solution, and the load cooling pump 2 is installed with a Expansion water tank 19. During the ice-making process at night, the refrigeration main engine is set to -3°C outlet water temperature, and the daytime cooling is set to 7°C outlet water temperature.

[0034] In...

Embodiment 2

[0041] Such as image 3 As shown, this embodiment is an engineering case with multiple ice storage tanks, and the main parts are the same as in Embodiment 1. The refrigeration host 1 of the central air-conditioning system with ice slurry storage adopts the McQuay double-working condition screw unit, which can provide -9°C to 9°C refrigeration The inlet and outlet of water and cooling water are provided with a preheating plate heat exchanger 7 and a cooling tower 9 in parallel, and a filter, a valve and a cooling water pump 8 are arranged in the outlet pipeline of the cooling tower 9 . The chilled water inlet and outlet of the refrigeration host 1 is connected in parallel with an ice-making plate heat exchanger 3, and the pipeline is connected in series with a load cooling pump 2, a filter, a valve, and filled with about 25% ethylene glycol aqueous solution, and the load cooling pump 2 is installed with a Expansion water tank 19. During the ice-making process at night, the refr...

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Abstract

The invention belongs to a central air-conditioning system, in particular to an energy-saving central air-conditioning system which uses ice slurry as an energy storage carrier for transferring the load of an electricity peak in the daytime to an electricity valley in the night. The central air-conditioning system mainly comprises a host refrigerating machine, a plate heat exchanger, an ice slurry generator, an ice storage tank, a water pump, a control system, and the like. The central air-conditioning system has the main functions of providing low-temperature water of about 1DEG C and low-temperature wind of about 15 DEG C, reducing the total installed capacity of the host refrigerating machine of a building, the diameter of a cold water pipe and the motor power of an end blower, balancing the power loads of the electricity peak and the electricity valley of a power system and reducing the operation cost of air conditioners, electrical capacity fees, initial cost, and the like by utilizing the power price difference between peak and valley power demand periods.

Description

technical field [0001] The invention belongs to a central air-conditioning system, in particular to an energy-saving and environment-friendly central air-conditioning system that uses ice slurry as an energy storage carrier to transfer peak power loads during the day to low valley power loads at night. Background technique [0002] In recent years, despite the rapid development of my country's electric power industry, electricity consumption is still very tight in some economically developed areas, which has become a bottleneck restricting local economic development. Especially in summer, the electricity consumption of air conditioners has generally exceeded one-third of the total electricity load. A few cities are even close to 50%. In stark contrast, the power grid can volatilize as much as 50% at night. The unbalanced power demand in time is a very important reason for the power shortage. The main reason is air conditioning. . At the same time, the rapid growth of urban li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F5/00
CPCY02E60/147Y02E60/14
Inventor 杨涛谢一鹏汪健斌刘岩敬刚王仕华
Owner 深圳力合节能技术有限公司
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