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Plate heat exchanger for economizer

A plate heat exchanger and economizer technology, which is applied in the fields of HVAC, refrigeration, transportation and automobiles, can solve problems such as the mechanism and law of heat exchange that are not considered in a targeted manner.

Active Publication Date: 2018-05-11
DANFOSS MICRO CHANNEL HEAT EXCHANGER JIAXING
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  • Abstract
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Problems solved by technology

[0003] The existing economizer (plate heat exchanger), the design of the heat exchange plate is based on the characteristics of the traditional evaporator, the heat exchange mechanism is more suitable for the heat exchange process between the refrigerant and the brine, and there is no specific Consider the mechanism and law of heat exchange of refrigerant with the same mass flow rate in the economizer

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  • Plate heat exchanger for economizer
  • Plate heat exchanger for economizer
  • Plate heat exchanger for economizer

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Embodiment Construction

[0038] The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals designate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention, but should not be construed as a limitation of the present invention.

[0039] In view of the above-mentioned defects or deficiencies in the prior art economizer, the present invention adopts a new type of plate design especially for the heat exchange characteristics and rules in the economizer. That is, a higher pressure drop level is given to the subcooling side channel to further enhance the heat exchange effect of the subcooled liquid refrigerant. At the same time, the evaporator side channel is provided with...

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Abstract

The invention provides a plate heat exchanger for an economizer. The plate heat exchanger comprises a plurality of heat exchange plates which are mutually stacked so as to form at least two flow passages which are used as an evaporation side channel and a supercooling side channel respectively in the plate heat exchanger to be used for exchanging heat; and when working mediums with the same mass flow rate flow through the evaporation side channel and the supercooling side channel, the pressure drop of the supercooling side channel is larger than that of the evaporation side channel.

Description

technical field [0001] The invention relates to the fields of HVAC, automobile, refrigeration and transportation, in particular to a plate heat exchanger used as an economizer. Background technique [0002] Using a small-sized plate heat exchanger as the economizer of the VRF air-conditioning system can improve the efficiency of the refrigeration cycle, reduce the discharge temperature of the compressor, and improve the performance of the unit. The main products currently on the market include traditional herringbone wave plate heat exchangers and symmetrical point wave heat exchangers. [0003] The existing economizer (plate heat exchanger), the design of the heat exchange plate is based on the characteristics of the traditional evaporator, the heat exchange mechanism is more suitable for the heat exchange process between the refrigerant and the brine, and there is no specific The mechanism and law of heat exchange of refrigerant with the same mass flow rate in the economi...

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Application Information

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IPC IPC(8): F28D9/02F28F3/02
CPCF28D9/02F28F3/02
Inventor 李华马文勇张志锋魏文建
Owner DANFOSS MICRO CHANNEL HEAT EXCHANGER JIAXING