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Parallel flow type heat converter

A heat exchanger, parallel flow technology, applied in the direction of fluid circulation arrangement, evaporator/condenser, lighting and heating equipment, etc., can solve the problem that the heat exchange efficiency cannot be fully exerted at the same time, so as to improve the heat exchange efficiency and overcome the junction. Cream, the effect of the best combination

Active Publication Date: 2008-05-14
SANHUA HANGZHOU MICRO CHANNEL HEAT EXCHANGER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a parallel flow heat exchanger, which can solve the problem that the heat exchange efficiency cannot be fully exerted at the same time when the heat exchanger is operated under the heat pump condition.

Method used

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  • Parallel flow type heat converter
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Examples

Experimental program
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Effect test

Embodiment 1

[0030] Such as figure 2 As shown, it shows a specific embodiment of the parallel flow heat exchanger of the present invention, the heat exchanger has a liquid collector 2, 6 on the left and right, and flat holes are punched out on the liquid collector 2, 6, After the flat tube 3 is inserted into the flat hole, it is fixed between the two liquid collecting pipes 2 and 6, and the fins 5 are placed between the liquid collecting pipes 2 and 6, and are formed by one-time welding in a furnace. Grooves are formed on the outside of the liquid collecting pipes 2 and 6 .

[0031] The dividing plate 4 is placed in the groove opened by the liquid collecting pipes 2 and 6 and is welded and sealed, and the dividing plate 4 divides the liquid collecting pipes 2 and 6 into a plurality of cavities.

[0032] At least one partition 4 is provided with a one-way valve that can change the number of processes and the number of flat tubes in each process, or an orifice 8 that forms different flow c...

Embodiment 2

[0037] The throttling device of the present invention can have various forms. In the second embodiment of the present invention, a check valve 10 is used to replace the orifice 8 in the first embodiment, and other features are the same as those in the first embodiment.

[0038] This one-way valve 10 can be the common form in the prior art, as Figure 5-7 As shown, a spring is housed in the one-way valve 10, which can be opened one-way only under a certain pressure difference. One-way valve 10 can be installed on one or more or all partitions 4 . The one-way sealing function can also be realized without spring in the one-way valve, relying on gravity or pressure difference.

[0039] When applied in a heat pump system, the heat exchanger can realize different flow characteristics under cooling and heating conditions. That is to say, the same heat exchanger can have different passages in cooling and heating cycles. Figure 8A and Figure 8B What is shown is the state of the s...

Embodiment 3

[0046] In order to install a one-way valve or a throttle valve more conveniently, in the third embodiment of the present invention, the first and second embodiments are further improved, as Figure 11 As shown, the liquid collecting pipes 2 and 6 are divided into several sections, and a connecting pipe is used to communicate between the two cavities of the liquid collecting pipes 2 and 6, and a throttling device is installed in the middle of the connecting pipe, and other parts are the same as those in the embodiment One and two are the same. The throttling device in this embodiment may be the above-mentioned throttling hole or a one-way valve, so as to achieve different circulation paths of the refrigerant and achieve the best cooperation between the condenser and the evaporator under the heat pump working condition.

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Abstract

The invention provides a parallel flow heat exchanger, comprising liquid collecting tubes (2, 6), a plurality of flat tubes (3) which are connected between the liquid collecting tubes (2, 6) and communicated with the inner cavities of the liquid collecting tubes (2, 6), fins (5) positioned between flat tubes (3) and clapboards (4) which are arranged inside the liquid collecting tubes (2, 6) to divide the liquid collecting tubes (2, 6) into a plurality of sealed cavities. Connecting tubes (1, 1') are connected with the liquid collecting tubes (2, 6). A throttling device which can change the flow and the flat tube numbers of each flow is arranged at least between two cavities of the liquid collecting tubes. The heat exchanger can regulate the composing proportion of the gas and liquid cooling work mediums so as to realize the regulation of the heat exchanging work states of the heat exchanger, or can form cooling mediums which flows in the heat exchanger to realize the right-direction and reverse-direction flow characteristics so as to adapt to the application of the heat exchanger in the heat pump system and to realize the excellent efficiency balance of cooling and heating and to lead the heat exchanger to perform the biggest benefit.

Description

technical field [0001] The invention relates to an air conditioning system, in particular to a heat exchanger in the air conditioning system. Background technique [0002] Most air-conditioning systems in the prior art include condensers, evaporators, compressors, throttling devices and other components, wherein the condensers and evaporators are heat exchange components of the system and are collectively referred to as heat exchangers. There are many types of heat exchangers such as parallel flow heat exchangers. Such as figure 1 As shown, the parallel flow heat exchanger is generally made of aluminum as the main body, including a pair of liquid collection pipes 2, 6 arranged in parallel, connected between the pair of liquid collection pipes 2, 6 and communicated with the inner cavity of the pair of liquid collection pipes A plurality of flat tubes 3, fins 5 located between the flat tubes 3 for heat dissipation, and separators 4 arranged inside the heat exchanger. One of...

Claims

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Application Information

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IPC IPC(8): F25B39/00F25B41/06
Inventor 史初良
Owner SANHUA HANGZHOU MICRO CHANNEL HEAT EXCHANGER
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