CN213020334U

CN213020334U - Low-power heat exchanger for full-premixing condensation gas water heater

Info

Publication number: CN213020334U
Application number: CN202021437411.4U
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 miniwatt heat exchanger that is used for full premix condensation gas water heater, include: a housing; the heat exchange coil is nested in the shell and extends towards a second end, opposite to the first end, of the shell along the first end of the shell, a heat exchange cavity is formed in the heat exchange coil, and a smoke diffusion channel is formed between the heat exchange coil and the inner wall of the shell; and the baffle is arranged in the heat exchange cavity, the baffle divides the heat exchange cavity into a combustion chamber and a condensation chamber, the first end of the shell is provided with an air inlet communicated with the combustion chamber, and the second end of the shell is provided with an air outlet communicated with the condensation chamber. The utility model discloses a set up around and combustion chamber and the condensation chamber that just link up each other, the flue gas is accomplished the heat exchange in the combustion chamber and is diffused to the condensation chamber to accomplish the condensation in the condensation chamber. The utility model discloses can promote heat exchange efficiency, and can realize the high-efficient condensation of the vapor in the flue gas.

Description

Low-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 miniwatt heat exchanger that is used for full premix condensation gas water heater.

Background

The traditional full-premixing condensing gas water heater generally only comprises a single combustion chamber, the high-temperature flue gas and the heat exchange coil pipe can only finish 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 miniwatt heat exchanger for full premix condensation gas water heater, its technical scheme as follows:

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

a housing;

the heat exchange coil is nested in the shell and extends towards a second end, opposite to the first end, of the shell along the first end of the shell, a heat exchange cavity is formed in the heat exchange coil, and a smoke diffusion channel is formed between the heat exchange coil and the inner wall of the shell; and

the baffle, the baffle sets up in the heat exchange cavity, the baffle will the heat exchange cavity is separated into combustion chamber and condensation chamber, the casing first serve be provided with the communicating air inlet of combustion chamber, the casing second serve be provided with the communicating gas outlet of condensation chamber.

In some embodiments, it further comprises: the coil mounting bracket is connected on the inner wall of the shell, and the heat exchange coil is connected on the coil mounting bracket.

In some embodiments, fins are disposed on an outer wall of the heat exchange coil.

In some embodiments, the housing is provided with a first water receiving port and a second water receiving port, the first water receiving port is communicated with a first end of the heat exchange coil located in the combustion chamber, and the second water receiving port is communicated with a second end of the heat exchange coil located in the condensation chamber.

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

In some embodiments, a condensed water outlet is provided on the housing in communication with the condensing chamber.

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

The utility model provides a miniwatt heat exchanger for full premix condensation gas water heater, it is including setting up side by side and the combustion chamber and the condensation chamber that link up each other, and the flue gas is diffused to the condensation chamber after the heat exchange is accomplished to 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 low-power heat exchanger for a full-premix condensing gas water heater according to the present invention at a first view angle;

FIG. 2 is a schematic structural diagram of a low-power heat exchanger for a fully premixed condensing gas water heater according to the present invention at a second viewing angle;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is a schematic structural diagram of the low-power heat exchanger for the fully premixed condensing gas water heater of the present invention at a third viewing angle.

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 4, the small power heat exchanger for the fully premixed condensing gas water heater provided by the present invention comprises a housing 1, a heat exchange coil 2, a partition plate 3, and other components. Wherein:

the heat exchange coil 2 is nested in the casing 1 and extends along a first end of the casing 1 towards a second end of the casing 1 opposite to the first end, and a heat exchange cavity 5 is formed in the heat exchange coil 2. A flue gas diffusion channel 6 is formed between the heat exchange coil 2 and the inner wall of the shell 1.

The partition plate 3 is arranged in the heat exchange cavity 5, the partition plate 3 divides the heat exchange cavity 5 into a combustion chamber 51 and a condensation chamber 52, an air inlet communicated with the combustion chamber 51 is arranged at the first end of the shell 1, and an air outlet communicated with the condensation chamber 52 is arranged at the second end of the shell 1. A burner (not shown) is provided in the combustion chamber 51, and the mixed gas enters the combustion chamber 51 through an intake port and is combusted in the burner.

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

the mixed gas is combusted in the combustion chamber 51 and generates high temperature flue gas, the high temperature flue gas is in heat exchange with water in the heat exchange coil 2 in the combustion chamber 51, and the water in the heat exchange coil 2 is heated.

The flue gas after heat exchange diffuses into the flue gas diffusion channel 6 through the gaps in the heat exchange coil 2 to the periphery and diffuses into the condensing chamber 52 along the flue gas diffusion channel 6, the flue gas exchanges heat with the heat exchange coil 2 in the condensing chamber 52 again in the condensing chamber 52, the flue gas is condensed, and condensed water in the flue gas is left in the condensing chamber 52. The condensed flue gas finally exits the condensation chamber 52 through an outlet.

Optionally, as shown in fig. 4, a first water receiving port 7 and a second water receiving port 8 are provided on the casing 1, the first water receiving port 7 is communicated with a first end of the heat exchanging coil 2 located in the combustion chamber 51, and the second water receiving port 8 is communicated with a second end of the heat exchanging coil 2 located in the condensation chamber 52. Optionally, the first water receiving port 7 is a water outlet port, and the second water receiving port 8 is a water inlet port.

The external water enters the heat exchange coil 2 through the second water receiving port 8, flows through the condensation chamber 52 and the combustion chamber 51 in sequence, and finally flows out through the first water receiving port 7. Namely: the flowing direction of water is opposite to the flowing direction of flue gas, and the temperature of the water in the heat exchange coil 2 in the condensing chamber 52 is lower, so that the flue gas flowing into the condensing chamber 52 and subjected to the previous heat exchange can be rapidly condensed, and the water in the heat exchange coil 2 in the combustion chamber 51 is subjected to high-efficiency heat exchange with the high-temperature flue gas in the combustion chamber 51.

Optionally, as shown in fig. 1 to 3, the utility model discloses still include coil pipe installing support 4, coil pipe installing support 4 connects on the inner wall of casing 1, and heat exchange coil 2 connects on coil pipe installing support 4.

Optionally, in order to discharge the condensed water in the condensing chamber 52 in time, the casing 1 is provided with a condensed water outlet 9 communicated with the condensing chamber 52.

Optionally, in order to increase the heat exchange area of the outer wall of the heat exchange coil 2 and improve the heat exchange effect, fins are arranged on the outer wall of the heat exchange coil 2.

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 low power heat exchanger for a fully premixed condensing gas fired water heater, the low power heat exchanger comprising:

a housing;

2. The low power heat exchanger of claim 1, further comprising:

the coil mounting bracket is connected on the inner wall of the shell, and the heat exchange coil is connected on the coil mounting bracket.

3. A low power heat exchanger according to claim 1 wherein fins are provided on the outer wall of the heat exchange coil.

4. The low power heat exchanger of claim 1, wherein the housing has a first water receiving port in communication with a first end of the heat exchange coil located in the combustion chamber and a second water receiving port in communication with a second end of the heat exchange coil located in the condensation chamber.

5. The small power heat exchanger as claimed in claim 4, wherein the first water receiving port is a water outlet port, and the second water receiving port is a water inlet port.

6. A small power heat exchanger according to claim 1 wherein a condensed water outlet is provided in the casing in communication with the condensing chamber.

7. A low power heat exchanger according to claim 1, wherein a burner is provided in the combustion chamber.