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Heat exchanger

A technology of heat exchanger and hot air flow, which is applied in the direction of heat exchanger shell, heat exchange equipment, lighting and heating equipment, etc., which can solve problems such as heat loss and flow uncertainty, and achieve the effect of improving thermal efficiency

Inactive Publication Date: 2009-10-21
孙时泽
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the area of ​​the exhaust port is constant, while the air entering the heat exchanger is not controlled and its flow rate is uncertain
Different burning appliances, different fuels, different flames and temperatures, and different operator habits. If the temperature is high, all the hot air cannot pass through the heat exchanger and be discharged from the exhaust port, and some hot air will still overflow from the bottom. If the temperature is low, too much air will enter the heat exchanger to take heat away, both of which will cause heat loss

Method used

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Embodiment Construction

[0026] From Figure 1 to Figure 2 From the first embodiment shown, it can be known that the hot air pressure boosting device is located on the exhaust port 1 of the heat exchanger, and is composed of a suspendable metal foil 2 , a supporting plate 3 and a cover 4 . The suspendable metal foil 2 is located in the supporting dish 3 ( figure 1 Shown is the suspended state), which is matched with the inner side wall of the support plate 3 in clearance, the side wall of the support plate 3 and the bottom of the plate are provided with vent holes 5, and the cover 4 is located on the suspendable metal foil 2. The edges of the suspendable metal foil 2 can be turned inwards (not shown in the figure) to increase the strength, keep it flat and reduce the friction between it and the inner wall of the supporting dish 3 .

[0027] image 3 The second embodiment shown is a fin-and-tube heat exchanger, and the hot air pressure booster is located on the exhaust port 1 of the heat exchanger, w...

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Abstract

The invention discloses a heat exchanger, which includes an exhaust port, and is characterized in that a hot air flow supercharging device is arranged at the exhaust port of the heat exchanger. The device increases the pressure of the hot air flow by controlling the flow of air entering the heat exchanger, so that the hot air flow heats the heat exchanger with the high temperature generated by the boosted pressure, and greatly improves the thermal efficiency without increasing the heat transfer area.

Description

technical field [0001] The invention relates to a heat exchanger. Background technique [0002] For a long time, in order to improve thermal efficiency, people always find ways to increase the heat transfer area of ​​the heat exchanger. For example, a boiler is equipped with pipes in water, and the hot air flows through the pipes to transfer heat and is discharged from the exhaust port. In order to further increase the heat transfer area, heat exchangers provided with water jackets have appeared. For example, Chinese Utility Model Patent Specification No. 90206295.6 discloses such heat exchangers for gas water heaters. The heat exchanger is provided with a water jacket and an inner tank (water outlet pipe) and is connected with a connecting pipe, and the hot air flows through the annular pipe (that is, the gap) between the two to transfer heat and is discharged from the exhaust port. However, the area of ​​the exhaust port is constant, while the air entering the heat excha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F9/00
Inventor 孙时泽孙如兰
Owner 孙时泽
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