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Transcritical carbon dioxide heat pump gas evaporator

A carbon dioxide and evaporator technology, applied in evaporator/condenser, gas cycle refrigerator, refrigeration and liquefaction, etc., can solve the problems affecting the uniformity and efficiency of gas temperature, uneven gas temperature, poor temperature control accuracy, etc. Achieve the effect of uniform contact, increased contact area, and uniform temperature drop

Active Publication Date: 2018-06-22
中能绿色精灵(北京)科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The evaporator for gas mostly adopts the direct contact type, such as the finned radiator form, that is, the heating medium is in direct contact with the gas for heat transfer. Due to the poor heat conduction of the gas, the local heating temperature is often too high, the gas temperature is uneven, and the temperature control accuracy is poor. and other problems, which affect the temperature uniformity and efficiency of the evaporated gas

Method used

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  • Transcritical carbon dioxide heat pump gas evaporator
  • Transcritical carbon dioxide heat pump gas evaporator
  • Transcritical carbon dioxide heat pump gas evaporator

Examples

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Embodiment Construction

[0022] Transcritical CO2 heat pump gas evaporators, such as figure 1 and figure 2 As shown, including the evaporator bottom plate 1, a support frame 3 is fixed at the center line of the evaporator bottom plate 1, two evaporator bodies 4 are symmetrically fixed on the top of the support frame 3, and two evaporator bodies 4 are fixed on both sides of the surface of the evaporator bottom plate 1. The water receiving tray 5, the side walls of the two water receiving trays 5 are connected to the sides of the bottom plate 1 of the evaporator;

[0023] The support frame 3 includes a support bar 301 fixed on the center line of the surface of the evaporator bottom plate 1. The surface of the support bar 301 is fixed and integrally connected with a fixed bar 302. The fixed bar 302 is an isosceles trapezoidal structure, and the evaporator body 4 is fixed. On the two waist side walls of the isosceles trapezoid, and the water receiving tray 5 is located directly below the evaporator body...

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Abstract

The invention discloses a transcritical carbon dioxide heat pump gas evaporator. The transcritical carbon dioxide heat pump gas evaporator comprises an evaporator base plate; a supporting frame is fixed in the center line of the evaporator base plate; two evaporator bodies are fixed to the top end of the supporting frame; water pans are fixed to the two sides of the surface of the evaporator baseplate; one side walls of the two water pans are connected to the side of the evaporator base plate; a liquid inlet pipe is vertically arranged on one side of the evaporator base plate and one side ofthe supporting frame and is located between the two evaporator bodies; U-shaped tee joints are arranged at the top end of the liquid inlet pipe; liquid distributors are connected to one ends of the U-shaped tee joints; a plurality of liquid distribution pipes are arranged on the liquid distributors; and a plurality of liquid conveying pipes connected to the liquid distribution pipes are arranged in the evaporator bodies. According to the transcritical carbon dioxide heat pump gas evaporator, step-by-step liquid distribution of a refrigerant is realized through the U-shaped tee joints and the liquid distributors, so that the refrigerant can be uniformly distributed in the evaporator bodies, and therefore a heat medium can uniformly make contact with the refrigerant, the temperature can be uniformly decreased, in addition, the contact area can be increased through liquid distribution, and the cooling efficiency can be further improved.

Description

technical field [0001] The invention belongs to the field of transcritical carbon dioxide heat pumps, and relates to a transcritical carbon dioxide heat pump gas evaporator. Background technique [0002] Evaporators are generally divided into circulation type, single pass type and direct contact type. The evaporator for gas mostly adopts the direct contact type, such as the finned radiator form, that is, the heating medium is in direct contact with the gas to transfer heat. Due to the poor heat conduction of the gas, the local heating temperature is often too high, the gas temperature is uneven, and the temperature control accuracy is poor. And other problems, which affect the temperature uniformity and efficiency of the evaporated gas. Contents of the invention [0003] The object of the present invention is to provide a transcritical carbon dioxide heat pump gas evaporator, the gas evaporator is provided with a U-shaped tee at the liquid inlet, one end of the U-shaped t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B39/02F25B43/00F25B9/00
CPCF25B9/008F25B39/02F25B43/00F25B2309/06F25B2339/02F25B2400/23
Inventor 刘瑞琦张保兴
Owner 中能绿色精灵(北京)科技有限公司
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