CN203100177U - Condensing heat exchanger - Google Patents

Abstract

The utility model discloses a condensing heat exchanger which is simple in structure and low in cost. The condensing heat exchanger comprises a shell body (1) and a heat exchanging pipeline (2) arranged in the shell body (1). A plurality of radiating fins (3) are spirally arranged on the outer wall of the heat exchanging pipeline (2). The heat exchanging pipeline (2) is spirally arranged in the shell body (1). Two ends of the heat exchanging pipeline (2) respectively are a heating hot water outlet (20) and a heating return water inlet (21). The heating hot water outlet (20) and the heating return water inlet (21) all penetrate through the outer wall of the shell body (1). The condensing heat exchanger can be widely applied to the field of heat exchangers.

Description

a condensing heat exchanger

technical field

The utility model relates to a condensation heat exchanger.

Background technique

A heat exchanger is a heat exchange device that transfers part of the heat of the hot fluid to the cold fluid so that the temperature of the fluid reaches the index specified in the process, also known as a heat exchanger. As heat transfer equipment, heat exchangers are widely used in the field of boiler heating and ventilation. With the rapid development of energy-saving technology, there are more and more types of heat exchangers. The fluid connection indirect heat exchanger is a heat exchanger that connects two surface heat exchangers by a heat carrier circulating in it. The heat carrier circulates between the high-temperature fluid heat exchanger and the low-temperature fluid. Heat, the heat is released to the low temperature fluid in the low temperature fluid heat exchanger. At present, the heat exchanger of the existing refrigeration equipment condenses the gas outside the tube through the water pipe inside the shell, and there are many cooling water pipes inside the shell. relatively high.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a condensing heat exchanger with simple structure and low cost.

The technical solution adopted by the utility model is: the utility model includes a shell and a heat exchange pipe arranged in the shell, the outer wall of the heat exchange pipe is spirally provided with a number of cooling fins, the heat exchange pipe Helically arranged in the housing, the two ends of the heat exchange pipe are the heating water outlet and the heating return water inlet respectively, and the heating water outlet and the heating return water inlet both pass through the housing the outer wall.

The condensing heat exchanger also includes an upper heat insulation layer, a lower heat insulation layer, a smoke blocking cylinder, and a burner located between the upper heat insulation layer and the lower heat insulation layer, which are sequentially arranged in the shell from top to bottom , the heat exchange pipe is close to the inside of the casing, and it surrounds the lower heat insulation layer and the smoke blocking cylinder.

The beneficial effects of the utility model are: since the utility model includes a shell and a heat exchange pipe arranged in the shell, the outer wall of the heat exchange pipe is spirally provided with a number of cooling fins, and the heat exchange pipe is in the shape of The spiral is arranged in the housing, and the two ends of the heat exchange pipe are the heating hot water outlet and the heating return water inlet respectively, and the heating hot water outlet and the heating return water inlet both go out of the housing. The outer wall, through such a structure, avoids the need to use multiple heat exchange tubes, the structure is simple, and the cost is relatively low. Moreover, the flue gas can flow slowly along with several spiral fins on the heat exchange tube, fully The heat exchange with the water in the heat exchange pipeline has high exchange efficiency, so the utility model has simple structure, low cost, can save energy, and improve heat exchange efficiency.

Description of drawings

Fig. 1 is a sectional view of the utility model;

Fig. 2 is a schematic structural view of the heat exchange pipeline of the present invention;

Fig. 3 is a partially enlarged schematic diagram of the heat exchange pipe of the present invention.

Detailed ways

As shown in Fig. 1, Fig. 2 and Fig. 3, the utility model includes a shell 1 and a heat exchange pipe 2, an upper heat insulating layer 4, a lower heat insulating layer 5, and a smoke blocking cylinder 6 arranged in the shell 1. . A burner 7. The upper heat insulation layer 4, the lower heat insulation layer 5, and the smoke blocking cylinder 6 are sequentially arranged in the housing 1 from top to bottom, and the burner 7 is located on the upper heat insulation layer. 4 and the lower heat insulation layer 5, the heat exchange pipe 2 is close to the inside of the housing 1, and it surrounds the lower heat insulation layer 5 and the smoke blocking cylinder 6, and the outer wall of the heat exchange pipe 2 The upper spiral is provided with several heat dissipation fins 3, that is, the outer wall of the heat exchange pipe 2 is provided with fins similar to threads, and the heat exchange pipe 2 is a heat-conducting metal pipe, preferably aluminum, because it is well known that aluminum The thermal conductivity of the material and the cost performance of the price are the highest. The heat exchange pipe 2 is spirally arranged in the housing 1. The two ends of the heat exchange pipe 2 are the heating hot water outlet 20 and the heating return water inlet 21 respectively. , the heating hot water outlet 20 and the heating return water inlet 21 both pass through the outer wall of the housing 1, through such a structure, the use of multiple heat exchange tubes and baffles can be avoided, and the internal structure can be simplified at the same time Cost saving, while at the same time, the flue gas produced by the burner 7 can move slowly with the plurality of fins 3, fully exchange with the water flow in the heat exchange tube 2, and the utilization rate of heat energy is high .

The utility model can be widely used in the field of heat exchangers.

Claims (2)

1. A condensing heat exchanger, which includes a shell (1) and a heat exchange pipe (2) arranged in the shell (1), characterized in that: the outer wall of the heat exchange pipe (2) The spiral is provided with several heat dissipation fins (3), the heat exchange pipe (2) is spirally arranged in the housing (1), and the two ends of the heat exchange pipe (2) are heating water The outlet (20), the heating return water inlet (21), the heating hot water outlet (20) and the heating return water inlet (21) all pass through the outer wall of the casing (1). 2. A condensing heat exchanger according to claim 1, characterized in that: the condensing heat exchanger further comprises an upper heat insulating layer (4) arranged sequentially from top to bottom in the housing (1) , the lower heat insulation layer (5), the flue gas blocking tube (6) and the burner (7) between the upper heat insulation layer (4) and the lower heat insulation layer (5), the heat exchange pipe (2 ) is close to the inside of the casing (1), and it surrounds the lower heat insulation layer (5) and the smoke blocking cylinder (6).

Images