Multi-injector parallel connection type solar injection cooling device

A refrigeration device and ejector technology, which is applied to solar thermal devices, solar thermal power generation, refrigerators, etc., can solve problems such as not being able to meet the high-efficiency operation of variable working conditions, achieve good indoor air quality, ease the pressure on the power grid, and achieve significant energy-saving benefits Effect

Inactive Publication Date: 2009-03-18
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to overcome the deficiencies in the prior art and provide a multi-ejector parallel solar spray refrigeration device. Between the generator and the condenser, injectors of different structural sizes are connected in parallel, which can be automatically or automatically as required. Manually switch to different injectors to work, so as to overcome the shortcomings of the traditional injection system that a single injector cannot meet the high-efficiency operation of variable working conditions, and can realize the efficient operation of multiple working conditions of the injection system and improve the cooling capacity of the system

Method used

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  • Multi-injector parallel connection type solar injection cooling device

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Embodiment 1

[0020] Embodiment 1: Take two injectors as an example in parallel structure: the pipeline connection method of the present invention: for the solar heat collection system, the heating medium enters the generator after being heated by the solar heat collector 1 under the action of the water pump 2 3. After exchanging heat with the refrigerant to release heat, it re-enters the solar heat collector 1 to absorb heat under the action of the water pump 2. The thick solid line represents the refrigerant system, and the refrigerant is divided into two circulation circuits.

[0021] The invention includes a solar hot water circuit, a spray refrigerant circuit and an air-conditioning water circuit, and is characterized in that:

[0022] The solar hot water circuit includes a solar heat collector 1, a generator 3 connected in series with the solar heat collector 1 through a pipeline and a water pump 2;

[0023] The injection refrigerant circuit includes a condenser 5 and a generator 3 c...

Embodiment 2

[0025] Embodiment 2: Take three injectors as an example in parallel structure:

[0026] The pipeline connection method of the present invention: for the solar heat collection system, the heating medium enters the generator 3 after being heated by the solar heat collector 1 under the action of the water pump 2. Under the action of 2, re-enter the solar collector 1 to absorb heat. The thick solid line represents the refrigerant system, and the refrigerant is divided into two circulation circuits.

[0027] Circuit one consists of generator 3, valve F 1 , valve F 3 , valve F 5 , the first injector 4A, the second injector 4B, the third injector 4C, the condenser 5, the refrigerant pump 6 and the connecting pipelines between them, wherein the inlet and outlet of the refrigerant pump 6 are respectively connected to the condenser through the pipeline 5 is connected to generator 3, and the outlet of generator 3 is divided into three routes, which are respectively connected to valve...

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Abstract

The invention relates to a multi-ejector parallel type solar ejecting refrigeration unit which utilizes solar energy to supply cold air, which comprises a solar hot-water loop, an ejecting refrigerant loop and an air conditioner water loop. The unit solves the problems that the prior ejecting refrigeration system is only provided with an ejector, the structural dimension of the ejector is fixed and the efficiency of an ejector system is drastically declined directly because operation condition is derivated from design condition. The unit is arranged between a generator and a condenser, and is provided with two or more than two ejectors with different structural dimensions in parallel. The multiple ejectors can meet high-efficiency operation of variable working conditions; and the unit can automatically or manually switch to a proper ejector for working according to solar radiation or weather changing conditions, further ensure that the system operates in refrigeration season with high efficiency, can improve the operation efficiency of the solar ejector system, and realize the aim of supplying the cold air with high efficiency and reasonability, thereby improving the utilization rate of solar energy, saving energy, relieving the pressure of electricity grid at the peak time, and improving the light-heat utilization efficiency.

Description

technical field [0001] The invention relates to a multi-ejector parallel solar jet refrigeration device for cooling by using solar energy, which is suitable for the field of air conditioning and refrigeration. Background technique [0002] With the aggravation of energy crisis, the utilization of solar energy has been paid more and more attention by people. In the solar energy utilization technology, the solar jet refrigeration system is favored by everyone for its simple structure, few moving parts, and low cost, and it is more and more widely used in the field of air conditioning and refrigeration. There is only one ejector in the traditional solar ejection refrigeration system, and the structural size of the ejector is designed under the standard working condition of the system. As we all know, with the changes of solar radiation and outdoor ambient temperature, the ejector system is not always in the designed working condition. Therefore, once the operating condition de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B19/04F24J2/04
CPCY02E10/44
Inventor 范晓伟郑慧凡
Owner ZHONGYUAN ENGINEERING COLLEGE
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