CN202452858U - Common secondary condensing heat exchanger - Google Patents

Abstract

The utility model is a secondary condensation type common heat exchanger, which solves the problems of high energy consumption and low thermal efficiency of the existing heat exchangers. The main heat exchanger (1) is connected to the condensing heat exchanger (2) above it, and there is a condensate drain plate (3) between the two. There are holes for the flue gas to pass through the condensate drain plate (3). There is a smoke exhaust chamber (4) on the heat exchanger (2), and there is a fire head under the main heat exchanger (1). The cold water inlet pipe (5) is connected to the first main water pipe (6) of the condensing heat exchanger. The water pipe (6) is connected to the coil (11) of the main heat exchanger (1) through the connecting pipe (7), and the coil (11) is connected to the second main water pipe (8) in the main disc changer, and the second main The water pipe (8) is connected to the outlet pipe (9), and the shell of the condensing heat exchanger (2) on the condensate drain plate (3) is connected to the condensate drain pipe (10).

Description

Secondary condensing ordinary heat exchanger

Technical field:

The utility model is related to common heat exchangers.

Background technique:

The existing ordinary heat exchanger has only one heat exchanger, and the exhaust gas temperature is as high as above 200°C, and a large amount of heat energy is stored in the flue gas, resulting in high energy consumption and low thermal efficiency.

Utility model content:

The purpose of the utility model is to provide a secondary condensation ordinary heat exchanger with low energy consumption and high thermal efficiency.

The utility model is achieved in that:

The utility model secondary condensing ordinary heat exchanger, the main heat exchanger 1 is connected with the condensing heat exchanger 2 on it, and there is a condensed water drainage plate 3 between the two, and the condensed water drainage plate 3 has flue gas passing through it. hole, there is a smoke exhaust chamber 4 on the condensing heat exchanger 2, there is a fire head under the main heat exchanger 1, the cold water inlet pipe 5 is connected to the first main water pipe 6 of the condensing heat exchanger, and the first main water pipe 6 passes through the connecting pipe 7 is connected to the coil 11 of the main heat exchanger 1, the coil 11 is connected to the second main water pipe 8 in the main heat exchanger, the main water pipe 8 is connected to the outlet pipe 9, and the condensing water drain plate 3 The housing of the heat exchanger 2 is connected to a condensate drain 10 .

The utility model adds a condensing heat exchanger on the basis of the original ordinary heat exchanger, and makes full use of the heat energy contained in the flue gas.

The cold water first enters the condensing heat exchanger through the water inlet pipe, where it uses the waste heat of the main heat exchanger to perform a heat exchange, and then enters the main heat exchanger through the connecting pipe connecting the condensing heat exchanger and the main heat exchanger. Secondary heat exchange is carried out in the heat exchanger.

The exhaust gas temperature of the original ordinary heat exchanger is as high as 200 degrees Celsius, and a large amount of heat energy is stored in the flue gas. By adding a condensing heat exchanger, the heat energy in the flue gas can be fully utilized, and the exhaust gas temperature is reduced to 70 degrees Celsius. or so, increasing the thermal efficiency of the heat exchanger by about 30%. The utility model has low energy consumption.

Description of drawings:

Fig. 1 is a structural diagram of the utility model.

Fig. 2 is a left side view of Fig. 1 .

Detailed ways:

The main heat exchanger 1 is connected to the condensing heat exchanger 2 above it, and there is a condensed water drain plate 3 with evenly distributed through holes at the connection, and the condensed water flows into the condensed water drain pipe 10 from the inclined condensed water drain plate 3 . Firehead is arranged below the main heat exchanger 1. The coil pipe 11 is spirally arranged on the outer surface of the lower shell of the main heat exchanger, and the main water pipe 8 is arranged in the upper shell of the main heat exchanger with heat exchange fins. The cold water inlet pipe 5 is connected to the main water pipe 6 in the shell of the condensing heat exchanger, the main water pipe 6 is connected to the coil 11 through the connecting pipe 7, the coil 11 is connected to the main water pipe 8, and the main water pipe 8 is connected to the outlet pipe 9.

Claims (1)

1. time condensation formula plain edition heat exchanger; It is characterized in that main heat exchanger (1) is connected with condensing heat exchanger (2) above it; Condensed water drain bar (3) is arranged between the two, and there is smoke extraction chamber (4) in the hole that has flue gas to pass through on the condensed water drain bar (3) on the condensing heat exchanger (2); Main heat exchanger has duration and degree of heating below (1); Cold water inlet (5) is connected with condensing heat exchanger first water main (6), and first water main (6) is connected with the coil pipe (11) of main heat exchanger (1) through tube connector (7), and coil pipe (11) is connected with interior second water main (8) of main heat exchanger; Second water main (8) is connected with outlet pipe (9), and the housing of the condensing heat exchanger (2) above the condensed water drain bar (3) is connected with condensate draining pipe (10).

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