CN213020333U

CN213020333U - High-power heat exchanger for full-premixing condensation gas water heater

Info

Publication number: CN213020333U
Application number: CN202021435072.6U
Authority: CN
Inventors: 杨启林; 张传有
Original assignee: Jiton New Heat Energy Equipment Wuxi Co ltd
Current assignee: Jiton New Heat Energy Equipment Wuxi Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-04-20
Anticipated expiration: 2030-07-20

Abstract

The utility model provides a high-power heat exchanger for full premix condensation gas water heater, include: a housing; the inner cavity of the shell is divided into a combustion chamber and a condensation chamber by the partition plate, a flue gas channel is formed between the partition plate and the shell, the top of the shell is provided with an air inlet communicated with the combustion chamber, and the bottom of the shell is provided with an air outlet communicated with the condensation chamber; the first heat exchange coil is arranged in the combustion chamber, a first flue gas diffusion channel is reserved between the first heat exchange coil and the inner wall of the combustion chamber, and a first water receiving port communicated with the first heat exchange coil is arranged on the shell; the second heat exchange coil, the second heat exchange coil sets up in the condensation chamber, and second heat exchange coil and first heat exchange coil intercommunication remain second flue gas diffusion passageway between second heat exchange coil and the condensation chamber inner wall, are provided with the second water receiving mouth with second heat exchange coil intercommunication on the casing. The utility model discloses can promote heat exchange efficiency, and can realize the high-efficient condensation of the vapor in the flue gas.

Description

High-power heat exchanger for full-premixing condensation gas water heater

Technical Field

The utility model relates to a heat transfer field especially relates to a high-power heat exchanger that is used for full premix condensation gas water heater.

Background

The traditional condensing boiler generally only comprises a single combustion chamber, the high-temperature flue gas and the heat exchange coil can only complete heat exchange in the combustion chamber, the heat exchange efficiency is low, and the condensing effect of water vapor in the high-temperature flue gas is poor.

SUMMERY OF THE UTILITY MODEL

For solving at least one among the above-mentioned technical problem, the utility model provides a full premix condensation gas furnace that falls to ground, its technical scheme as follows:

a high power heat exchanger for a fully premixed condensing gas fired water heater comprising:

a housing;

the baffle is vertically arranged in the shell, the inner cavity of the shell is divided into a combustion chamber and a condensation chamber by the baffle, a flue gas channel communicated with the combustion chamber and the condensation chamber is formed between the baffle and the inner wall of the shell, the top of the shell is provided with an air inlet communicated with the combustion chamber, and the bottom of the shell is provided with an air outlet communicated with the condensation chamber;

the first heat exchange coil is arranged in the combustion chamber along the vertical direction, a first flue gas diffusion channel is reserved between the first heat exchange coil and the inner wall of the combustion chamber, and a first water receiving port communicated with the first heat exchange coil is formed in the shell; and

second heat exchange coil, second heat exchange coil sets up along vertical direction in the condensation chamber, second heat exchange coil with first heat exchange coil intercommunication, second heat exchange coil with second flue gas diffusion passageway remains between the inner wall of condensation chamber, be provided with on the casing with the second water receiving mouth of second heat exchange coil intercommunication.

In some embodiments, fins are disposed on the outer walls of both the first and second heat exchange coils.

In some embodiments, the first heat exchange coil and the second heat exchange coil are integrally formed.

In some embodiments, a baffle is disposed between an upper end surface of the first heat exchanging coil and the air inlet.

In some embodiments, the first water receiving port is located at the water outlet and the second water receiving port is a water inlet.

In some embodiments, a burner is disposed within the combustion chamber.

The utility model provides a high-power heat exchanger, it is including setting up side by side and the combustion chamber and the condensation chamber that link up each other, the flue gas is accomplished the heat exchange back diffusion to the condensation chamber at the combustion chamber to accomplish the condensation in the condensation chamber. Compare with traditional condensation boiler, the utility model discloses an aspect can promote heat exchange efficiency, and on the other hand can realize the high-efficient condensation of the steam in the high temperature flue gas.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings which are needed in the embodiments and are practical will be briefly described below and will be obvious, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. Wherein:

fig. 1 is a schematic structural diagram of a high-power heat exchanger for a fully premixed condensing gas water heater provided by the present invention at a viewing angle;

fig. 2 is a schematic structural diagram of a high-power heat exchanger for a fully premixed condensing gas water heater provided by the present invention at another viewing angle;

fig. 3 is a sectional view a-a of fig. 2.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1 to fig. 3, the high power heat exchanger for the fully premixed condensing gas water heater provided by the present invention comprises a housing 1, a partition plate 2, a first heat exchange coil 5, a second heat exchange coil 6 and other components. Wherein:

the baffle 2 is vertically arranged in the shell 1, the baffle 2 separates the inner cavity of the shell 1 into a combustion chamber 3 and a condensation chamber 4, a flue gas channel 9 communicated with the combustion chamber 3 and the condensation chamber 4 is formed between the baffle 2 and the inner wall of the shell 1, the top of the shell 1 is provided with a gas inlet communicated with the combustion chamber 3, and the bottom of the shell 1 is provided with a gas outlet communicated with the condensation chamber 4. A burner (not shown) is provided in the combustion chamber 3, and the mixed gas enters the combustion chamber 3 through an intake port and is combusted in the burner.

First heat exchange coil 5 sets up in combustion chamber 3 along vertical direction, remains first flue gas diffusion channel 10 between the inner wall of first heat exchange coil 5 and combustion chamber 3, is provided with the first water receiving mouth 8 with first heat exchange coil 5 intercommunication on the casing 1.

Second heat exchange coil 6 sets up in condensing chamber 4 along vertical direction, and second heat exchange coil 6 and first heat exchange coil 5 intercommunication remain second flue gas diffusion channel 11 between the inner wall of second heat exchange coil 6 and condensing chamber 4, are provided with the second water receiving mouth 7 with second heat exchange coil 6 intercommunication on the casing 1.

Optionally, the first water receiving port 8 is a water outlet receiving port, and the second water receiving port 7 is a water inlet receiving port.

Referring to fig. 3, the heat exchange process of the high power heat exchanger of the present invention is as follows:

the external mixed gas enters the combustion chamber 3 through the air inlet and is combusted on the combustor, so that a large amount of high-temperature flue gas is generated in the combustion chamber 3, and the high-temperature flue gas is diffused into the first flue gas diffusion channel 10 to the periphery through the gaps in the first heat exchange coil 5 and is diffused into the condensation chamber 4 through the flue gas channel 9. The flue gas entering the condensation chamber 4 flows between the second flue gas diffusion channel 11 and the inner space of the second heat exchange coil 5 through the gaps in the second heat exchange coil 5, and is finally discharged through the gas outlet.

Synchronously, external water flows into the second heat exchange coil 6 through the second water receiving port 7, and flows out through the first water receiving port 8 after sequentially flowing through the second heat exchange coil 6 and the first heat exchange coil 5.

It can be seen that, the utility model discloses in, the high temperature flue gas of joining in the heat exchange diffuses to condensation chamber 4 from combustion chamber 3, and the water of joining in the heat exchange then flows to first heat exchange coil 5 in the combustion chamber 3 from the second heat exchange coil 6 in the condensation chamber 4, promptly: the flow direction of the high-temperature flue gas is opposite to the flow direction of the water. The water to be heated firstly completes the first heat exchange with the high-temperature flue gas with lower temperature in the condensing chamber 4, then enters the combustion chamber 3 and completes the second heat exchange with the high-temperature flue gas with higher temperature. So, the hydroenergy of waiting to heat can be by the intensive heating to promote the utility model discloses a hot water effect.

Correspondingly, the high-temperature flue gas firstly carries out primary heat exchange with water with higher temperature in the combustion chamber 3, and the temperature of the high-temperature flue gas is reduced. Then, the high-temperature flue gas diffuses into the condensing chamber 4 and exchanges heat with the water with lower temperature again, the temperature of the high-temperature flue gas is further reduced, the water vapor in the high-temperature flue gas is condensed and remained in the condensing chamber 4, and the flue gas in the high-temperature flue gas is discharged through the gas outlet.

It can be seen that the utility model discloses be provided with combustion chamber 3 and condensation chamber 4 side by side, the utility model discloses can show the heat exchange efficiency who promotes condensation gas water heater, improve the hot water effect.

Optionally, in order to discharge the condensed water in the condensation chamber 4 in time, a condensed water outlet communicated with the condensation chamber 4 is provided on the housing 1.

Optionally, in order to increase the heat exchange area of the outer wall of the heat exchange coil and improve the heat exchange effect, fins are arranged on the outer walls of the first heat exchange coil 5 and the second heat exchange coil 6.

Alternatively, the first heat exchanging coil 5 and the second heat exchanging coil 6 are integrally formed. Namely: the first heat exchange coil 5 and the second heat exchange coil 6 are formed by winding a complete metal tube, and a part of the first heat exchange coil 5 is located in the combustion chamber 3 to form the so-called first heat exchange coil 5, and a part of the second heat exchange coil 6 is located in the condensation chamber 4 to form the so-called second heat exchange coil 6.

Optionally, a baffle 12 is disposed between the upper end surface of the first heat exchanging coil 5 and the air inlet. By arranging the baffle 12, high-temperature flue gas on the burner is prevented from directly flowing into the condensation chamber 4 through the flue gas channel 9.

The invention has been described above with a certain degree of particularity and detail. It will be understood by those of ordinary skill in the art that the description of the embodiments is merely exemplary and that all changes that may be made without departing from the true spirit and scope of the present invention are intended to be within the scope of the present invention. The scope of the invention is defined by the appended claims rather than by the foregoing description of the embodiments.

Claims

1. A high power heat exchanger for a fully premixed condensing gas fired water heater, the high power heat exchanger comprising:

a housing;

2. The high power heat exchanger of claim 1 wherein the first heat exchange coil and the second heat exchange coil are each finned on their outer walls.

3. The high power heat exchanger of claim 1 wherein the first heat exchange coil and the second heat exchange coil are integrally formed.

4. The high power heat exchanger of claim 1 wherein a baffle is disposed between the upper end of said first heat exchanging coil and said air inlet.

5. The high power heat exchanger of claim 1 wherein the first water receiving port is an outlet water receiving port and the second water receiving port is an inlet water receiving port.

6. The high power heat exchanger of claim 1 wherein a burner is disposed within the combustion chamber.