Operational control strategy of a solar jet refrigeration system

A refrigeration system and operation control technology, which is applied to the operation mode of the machine, the machine that uses refrigerant evaporation, refrigerators, etc., can solve the problems of the injection system's efficiency drop, low cooling capacity, and the inability to make full use of solar energy, and achieve improved Effects of solar utilization rate, grid pressure relief, significant social and economic benefits

Active Publication Date: 2017-09-15
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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. Once the operating condition deviates from the design condition, it will directly lead to a sharp drop in the efficiency of the injection system
There are many researches on the performance of solar jet refrigeration system, but the research on its actual application in air conditioning system is rare, and the operation of air conditioning system is mostly calculated and analyzed, often adopting the working mode of constant temperature, so condensation will occur When the temperature changes, the system does not always operate efficiently, resulting in the inability to make full use of solar energy reasonably and the cooling output of the system is low

Method used

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  • Operational control strategy of a solar jet refrigeration system
  • Operational control strategy of a solar jet refrigeration system
  • Operational control strategy of a solar jet refrigeration system

Examples

Experimental program
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Embodiment 1

[0022] Embodiment 1: a kind of operation control strategy of solar jet refrigeration system, such as figure 1 and figure 2 As shown, the solar jet refrigeration system includes a solar water heating circuit 1, a spray refrigerant circuit 2 and an air conditioning circuit 3, the solar hot water circuit 1 and the spray refrigerant circuit 2 are connected through a generator 5, and the spray refrigerant circuit 2 and the air conditioning circuit 3 are connected through the evaporator 4. The injection refrigerant circuit 2 is provided with at least two injectors in parallel, and the front end of the injector is provided with a valve; the outlet of the generator 5 is provided with a temperature sensor 6 and a pressure sensor 7, and the temperature sensor 6, the pressure sensor 7 and the control The device 8 is connected, and the controller 8 is connected with the valve.

[0023] The control strategy of the solar jet refrigeration system is:

[0024] 1. The temperature sensor 6 ...

Embodiment 2

[0030] Embodiment 2: a kind of operation control strategy of solar jet refrigeration system, such as figure 1 and figure 2 As shown, the solar jet refrigeration system includes a solar water heating circuit 1, a spray refrigerant circuit 2 and an air conditioning circuit 3, the solar hot water circuit 1 and the spray refrigerant circuit 2 are connected through a generator 5, and the spray refrigerant circuit 2 and the air-conditioning circuit 3 are connected through an evaporator 4, and at least two injectors are arranged in parallel on the injection refrigerant circuit 2, and a valve is provided at the front end of the injector; a temperature sensor 6 and a pressure sensor 6 are provided at the outlet of the generator 5. The sensor 7, the temperature sensor 6 and the pressure sensor 7 are connected with the controller 8, and the controller 8 is connected with the valve.

[0031] The control strategy of the solar jet refrigeration system is:

[0032] 1. The temperature sens...

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Abstract

The invention discloses an operation control strategy of a solar energy injection refrigeration system. The solar energy injection refrigeration system includes a solar hot water circuit, an injection refrigerant circuit and an air conditioning circuit, and a generator is connected between the solar hot water circuit and the injection refrigerant circuit. The refrigerant injection circuit and the air conditioning circuit are connected through an evaporator, and it is characterized in that at least two ejectors are arranged in parallel on the refrigerant injection circuit, and the front end of the ejector is provided with a valve; the outlet of the generator is provided with a valve. The temperature sensor and the pressure sensor are connected with the controller, and the controller is connected with the valve. The invention automatically switches to a suitable ejector to work through the controller, realizes the efficient utilization of solar energy, improves the utilization rate of solar energy, relieves the grid pressure caused by the electricity consumption of the air conditioner, and has significant social and economic benefits.

Description

technical field [0001] The invention relates to the technical field of solar spray refrigeration, in particular to an operation control strategy of a solar spray refrigeration system. 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 advantages of 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. Once the operating condition deviates from the design ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): F25B27/00F25B19/04F25B49/00
Inventor郑慧凡杨中宣范晓伟刘磊李冰田国记朱彩霞白静
OwnerZHONGYUAN ENGINEERING COLLEGE