CN218033734U

CN218033734U - Full premix condensing exchanger

Info

Publication number: CN218033734U
Application number: CN202221625888.4U
Authority: CN
Inventors: 胥金龙
Original assignee: Sichuan Haoyu Longxing Energy Technology Co ltd
Current assignee: Sichuan Haoyu Longxing Energy Technology Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-12-13
Anticipated expiration: 2032-06-28

Abstract

A full-premixing condensing exchanger comprises a shell, wherein a combustion chamber is arranged in the shell, and a gas inlet and a flue gas discharge port which are connected with the combustion chamber are formed in the shell; still include both ends and connect the coil pipe of setting up hot medium entry and hot medium export on the shell respectively, be provided with the fume emission passageway between fume emission mouth and the combustion chamber, the coil pipe is continuous around the combustion chamber is peripheral, the fume emission passageway is located the coil pipe bottom. Adopt full premix condensing exchanger through design coil pipe as the main medium route around combustor and flue gas emission passageway, can fully absorb the heat, simultaneously in the flue gas emission passageway after the burning, also can absorb the heat of flue gas to reach energy saving and emission reduction's design purpose.

Description

Full premix condensing exchanger

Technical Field

The utility model belongs to the technical field of machinery, a heat exchange technology is related to, concretely relates to full premix condensing exchanger.

Background

The heat exchanger of the existing gas wall-hanging stove generally adopts red copper as a raw material, the combustion mode is that natural gas is combusted in the atmosphere, then the heat exchanger absorbs heat by a heat absorbing sheet and a main water channel, the heat is converted in a heat exchange medium of the main water channel, the temperature of the heat exchange medium is improved, the heat exchange medium brings heat energy out of the heat exchanger and sends the heat energy to places needing to provide heat energy, such as heating radiators, and at present, most of domestic uses tap water as the heat exchange medium; the temperature of the heat exchanger medium after heat dissipation is reduced, the heat exchange medium is sent to the heat exchanger again under the action of the circulating pump, and then the process is repeated.

The heat exchanger adopts the stamping forming technology to make the heat absorbing sheet of the heat exchanger, adopts the tube rolling technology to make the main water path of the heat exchanger, then assembles the heat exchanger in a mechanical matching connection mode, and finally uses the brazing technology to weld the heat exchanger into a whole. The finished heat exchanger is obtained after surface treatment, and the heat efficiency of the heat exchanger in the prior art can only reach 2-level energy efficiency and cannot meet the use requirement of 1-level energy efficiency.

SUMMERY OF THE UTILITY MODEL

For overcoming the technical defect that prior art exists, the utility model discloses a full premix condensing exchanger.

The full-premixing condensing exchanger comprises a shell, wherein a combustion chamber is arranged in the shell, and a gas inlet and a flue gas discharge port which are connected with the combustion chamber are arranged on the shell; still include both ends and connect the coil pipe of setting up hot medium entry and hot medium export on the shell respectively, be provided with the fume emission passageway between fume emission mouth and the combustion chamber, the coil pipe is continuous around the combustion chamber is peripheral, the fume emission passageway is located the coil pipe bottom.

Preferably, the top of the shell is provided with a viewing hole.

Preferably, the bottom of the combustion chamber is connected with a gas inlet, the bottom of the combustion chamber is also provided with an ignition needle, and the top of the combustion chamber is provided with a fire stop baffle.

Preferably, a condensate discharge port is provided on the housing.

Preferably the flue gas discharge port outside is provided with the mounting bracket, the mounting bracket has inside casing and frame, and the inside casing is fixed in the flue gas discharge port outside, and inside casing and frame are connected through a plurality of connecting rods, are provided with a plurality of screws on the frame.

Adopt full premix condensing exchanger through design coil pipe as the main medium route around combustor and flue gas emission passageway, can fully absorb the heat, simultaneously in the flue gas emission passageway after the burning, also can absorb the heat of flue gas to reach energy saving and emission reduction's design purpose.

Drawings

FIG. 1 is a schematic diagram of an embodiment of a fully premixed condensing exchanger according to the present invention;

FIG. 2 is a schematic view of another angle of the embodiment of FIG. 1;

FIG. 3 is a schematic top view of the embodiment of FIG. 1;

FIG. 4 isbase:Sub>A schematic cross-sectional view taken along line A-A of the embodiment of FIG. 3;

FIG. 5 is a schematic view of the structure of a flue gas discharge port of the embodiment of FIG. 1;

the reference numbers in the figures refer to: the method comprises the following steps of 1-a gas inlet, 2-a heat medium outlet, 3-a condensate water discharge port, 4-a heat medium inlet, 5-an ignition needle, 6-an observation hole, 7-a coil pipe, 8-a combustion chamber, 9-a fire stop baffle, 10-a flue gas discharge port, 11-a shell, 12-an installation frame, 13-a screw hole and 14-a flue gas discharge channel.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the attached drawings.

The full premix condensing exchanger comprises a shell 11, wherein a combustion chamber 8 is arranged in the shell, and a gas inlet 1 and a flue gas discharge port 10 which are connected with the combustion chamber are arranged on the shell; the combustion chamber is characterized by further comprising a coil 7, two ends of the coil are respectively connected with a heat medium inlet 4 and a heat medium outlet 2 which are arranged on the shell, a smoke discharge channel is arranged between the smoke discharge port and the combustion chamber, the coil continuously surrounds the periphery of the combustion chamber, and the smoke discharge channel 14 is located at the bottom of the coil.

When the device is used, the gas inlet is connected with a turbine fan and a gas source, the turbine fan mixes gas and air in a preset proportion and then injects the mixed gas into the gas inlet 1, the mixed gas is fed into a combustion chamber 8, an ignition needle is used for igniting the mixed gas to start combustion, a thermal medium is usually tap water, the mixed gas enters through a thermal medium inlet 4 and a coil pipe 7 and absorbs heat in the combustion chamber 8, the mixed gas flows out from a thermal medium outlet to a heat-using device such as a radiator or a floor heating, smoke can be discharged from a smoke discharge port through a smoke discharge channel, the combustion chamber and the smoke discharge channel are coaxially distributed, smoke can be directly discharged from the combustion chamber, the influence on combustion efficiency caused by waste gas retention is avoided, the coil pipe 7 is convenient to continuously surround the combustion chamber 8 and cling to the smoke discharge channel, the coil pipe absorbs the heat of the combustion chamber and the waste heat of the smoke discharge channel, the heat utilization efficiency is improved, in the specific embodiment shown in fig. 4, the smoke discharge channel 14 is arranged at the bottoms of the combustion chamber and the coil pipe, is connected with a smoke discharge port surrounded by a shell 11, and wraps the bottom of the whole coil pipe; the whole heat exchanger is compact in structure and small in size by arranging the combustion chamber, the coil pipe, the smoke discharge channel and the like in the shell.

The top of the shell can be provided with a viewing hole 6 closed by fire-resistant glass for viewing the coil pipe and the combustion chamber; a condensate drain 3 in the housing is provided to drain condensate that condenses on the coil when heating is stopped.

A typical layout mode is that a gas inlet 1 is connected to the bottom of the combustion chamber 8, gas can rapidly enter the center of the combustion chamber in a large flow rate, an ignition needle 5 is arranged at the bottom of the combustion chamber for ignition, an ignition stop baffle 9 is arranged at the top of the combustion chamber, and the ignition stop baffle 9 is generally made of a stainless steel plate and used for stopping flame from escaping outwards.

Because the flue gas needs to be discharged outdoors or connected with an external discharge pipeline, in the specific embodiment shown in fig. 2 and 5, an installation frame 12 is arranged outside the flue gas discharge port 10, the installation frame is provided with an inner frame and an outer frame, the inner frame is fixed outside the flue gas discharge port, the inner frame and the outer frame are connected through a plurality of connecting rods, the outer frame is provided with a plurality of screw holes 13, and the outer frame is conveniently connected with the end surface or the window frame of the external pipeline through bolts.

Adopt full premix condensing interchanger realizes simultaneously with gas and two kinds of modes of power consumption, can heat and life hot water's use as if when stopping gas. And the advantages of a fully premixed condensing heat exchanger and the advantages of an electric wall-hung furnace heat exchanger can be combined, and the 1-level energy efficiency index can be realized.

In the foregoing, the preferred embodiments of the present invention, if not obviously contradictory or based on a certain preferred embodiment, can be combined and used by any superposition, the specific parameters in the embodiments and examples are only for clearly expressing the utility model verification process of the utility model, and are not used for limiting the patent protection scope of the present invention, the patent protection scope of the present invention is still based on the claims, and all the equivalent structural changes made by the contents of the specification and the drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. A full-premixing condensing exchanger is characterized by comprising a shell (11), wherein a combustion chamber (8) is arranged in the shell, and a gas inlet (1) and a flue gas discharge port (10) which are connected with the combustion chamber are arranged on the shell; still include coil pipe (7) that both ends are connected respectively and are set up hot-medium entry (4) and hot-medium export (2) on the shell, be provided with fume emission passageway (14) between fume emission mouth (10) and combustion chamber (8), the coil pipe is continuous around combustion chamber (8) periphery, fume emission passageway (14) are located coil pipe (7) bottom.

2. The fully premixed condensing exchanger according to claim 1, wherein the top of the shell is provided with a sight glass (6).

3. The full premix condensing exchanger as claimed in claim 1, wherein the bottom of the combustion chamber (8) is connected to the gas inlet (1), the bottom of the combustion chamber is further provided with an ignition needle (5), and the top of the combustion chamber is provided with a fire stop baffle (9).

4. The full premix condensing exchanger of claim 1, characterized in that a condensate drain (3) is provided on said housing (11).

5. The full premix condensing exchanger as claimed in claim 1, wherein a mounting frame (12) is provided outside the flue gas discharge port (10), said mounting frame having an inner frame fixed outside the flue gas discharge port and an outer frame connected by a plurality of connecting rods, the outer frame being provided with a plurality of screw holes (13).