Novel heat exchanger provided with micro channel heat exchange plate

Abstract

The invention discloses a novel heat exchanger provided with a micro channel heat exchange plate, relating to the technical field of heat exchangers. The novel heat exchanger comprises a heat exchanger housing and a heat exchange device, wherein a heat exchange medium inlet, a heat exchange medium outlet, a refrigerant inlet and a refrigerant outlet are formed in the heat exchanger housing; the left side and the right side of the micro channel heat exchange plate of the heat exchange device are downwards bent to form a left end folded plate and a right end folded plate; the upper side and the lower side of the micro channel heat exchange plate are upwards bent to form an upper end folded plate and a lower end folded plate; baffles are welded and fixed at the four corners of the micro channel heat exchange plate; one side of each baffle is welded and fixed at the lateral side of the left end folded plate or the right end folded plate in the way of atomic diffusion; and the other side of the baffle is welded and fixed at the lateral side of the upper end folded plate or the lower end folded plate in the way of atomic diffusion. The novel heat exchanger provided with the micro channel heat exchange plate is very simple in structure, and convenient to manufacture; four access areas are as follows: a refrigerant inlet area, a refrigerant outlet area, a heat exchange medium inlet area and a heat exchange medium outlet area are arranged at the four directions of same micro channel heat exchange plate, so that the heat exchange effect is good and the connection is convenient.

Description

Technical field: [0001] The invention relates to the technical field of heat exchangers, and more specifically to a new type of heat exchanger with microchannel heat exchange plates. Background technique: [0002] Existing heat exchangers are mostly finned copper tube, shell and tube, and plate heat exchangers. The currently popular microchannel heat exchanger is formed by a combination of air cooling. The increasingly stringent requirements of performance and volume have made it a trend for microchannel heat exchangers to gradually replace plate heat exchangers. The existing microchannel heat exchangers usually include several layers or entire layers with refrigerant channels formed on them. The refrigeration and heat exchange layer has several layers formed with working fluid channels and stacked with the refrigeration heat exchange layer. The single-layer and single-fluid circulation heat exchange effect is not ideal. Others, such as Chinese patent document CN201010567766.X, p...

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Problems solved by technology

[0003] However, the working fluid must enter and exit through the transverse groove on the dividing plate, that is, the working fluid and the refrigerant fluid inlet and outlet are on two plates, so that the dividing plate needs to be further processed, so that the dividing plate must maintain a certain thickness, and when the working fluid enters and exits from the transverse groove of the partition plate, it keeps a certain distance from the refrigerant on the heat exchange plate, and the two cannot exchange heat quickly. Only when the working fluid enters the heat exchange plate can the heat exchange be rapid. At the same time, the first fluid channel and the second fluid channel are processed on the heat exchange plate. In order to ensure the direction of fluid entry and exit, the two ends of the first fluid channel on the heat exchange plate in the length direction must be sealed, and the two ends of the second fluid channel in the length direction are sealed. To open the mouth, the workload is heavy and the structure is complicated, which reduces the overall production efficiency

[0004] Moreover, in some existing heat exchangers, the refrigerant channel and the heat-exchanging medium channel are processed on two different plates through the process of notching for heat exchange. The cost of notching is very high and the efficiency is very low, making the exchange The overall cost of the heater is high

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