Carbon dioxide hydrate slurry cold storing and releasing central air conditioning unit

Abstract

A carbon dioxide hydrate slurry cold storing and releasing central air conditioning unit comprises a compressor, a cooler, a heat regenerator, an air cooler, a valve, a circulating pump, an expansion machine and a hydration reaction kettle. The expansion machine is used for producing carbon dioxide gas to a carbon dioxide gas-liquid mixture through cooling and depressurization; the hydration reaction kettle is used for producing water and the carbon dioxide gas-liquid mixture to carbon dioxide hydrate slurry; the heat regenerator is communicated with the expansion machine; then the expansion machine is communicated with the hydration reaction kettle; an outlet of hydrate slurry of the hydration reaction kettle is communicated with an inlet of a fan coil of the air cooler through a control valve; an outlet of the fan coil of the air cooler is sequentially communicated with the circulating pump and a backflow inlet of the hydration reaction kettle; and a gas outlet of the hydration reaction kettle is sequentially communicated with the heat regenerator and a dryer and then communicated with an air suction port of the compressor.

Description

technical field [0001] The present invention relates to a novel carbon dioxide (hereinafter referred to as CO 2 Indicates) Hydrate slurry cold storage air-conditioning device. Especially involving a CO 2 The refrigerating machine technology in which the hydrate slurry is used as a cooling agent and a bridging agent belongs to the technical fields of refrigeration engineering and chemical engineering. Background technique [0002] With the development of the economy and the improvement of people's living standards, people have put forward higher requirements for the working and living environment. Many shopping malls, hotels, office buildings, and residential buildings are equipped with air-conditioning systems, which has led to a very rapid growth in my country's electricity demand, especially the widening gap between peak and trough power consumption within a day, and the uneven operation of the power grid has become increasingly serious, which has greatly affected The co...

AI Technical Summary

Problems solved by technology

Its device makes full use of the latent heat of hydrate and the high-pressure gas formed by its decomposition, and has the characteristics of high efficiency, simple structure, and convenient operation. When the pressure of the high-pressure gas cylinder is reduced, it cannot provide enough driving energy and the pressure required for hydrate formation; the patent No. 200820056062.4 titled "A Visualization Device for Gas Hydrate Cold Storage / Gas Storage" discloses a A visualization device with cold storage function

The device uses stirring and a constant temperature water bath to reduce the time for hydrate formation. The driving energy is also a high-pressure cylinder, so the device cannot run for a long time, and the device lacks a cooling device and only serves as a cold storage function. The hydrate reactor The size is small, the cold storage capacity is small, and it cannot meet the cooling capacity requirements of a larger space; the patent number is 201210137361 and the name is "A CO 2 Hydrate Slurry Circulation Cold Storage and Release Type Automobile Air Conditioning Device” patent discloses a CO-based 2 Hydrate slurry cold storage and release automotive air-conditioning device, which uses two hydration reactors to simultaneously store cold and release cold, and uses a throttle valve to control CO 2 To cool down

The structure of the device is complex, the cost is high, and further optimization is required

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