Core mechanism of full-premixing hot water boiler

Abstract

The utility model relates to the technical field of hot water boilers, in particular to a core mechanism of a full-premixing hot water boiler, which comprises a condensing heat exchanger main body, a water channel, a water inlet, a water outlet, a baffle plate and fins, at least three water channels are arranged in the condensation heat exchanger body in parallel, water inlets are correspondingly welded to the upper ends of the three water channels, and water outlets are correspondingly welded to the lower ends of the three water channels. The baffle is welded in the water channel; the fins are of an integrated structure and are located on the outer wall of the condensation heat exchanger body. Through structural improvement, the condensation heat exchange device has the advantages that the condensation heat exchange effect of the boiler is more remarkable, and the condensation heat exchange device has the practical performance and practical value, so that the problems and defects in the prior art and equipment are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot water boiler technical field, more specifically, especially, it relates to a kind of core mechanism of full premix hot water boiler. BACKGROUND

[0002] Full premix hot water boiler is the preferred product for solving urban clean heating, energy-saving heating and reducing NOx emissions, and is the updated product of traditional gas boiler.

[0003] The core technology of the full premix hot water boiler at present is condensation, which reduces the heat loss in the flue gas after fuel combustion, efficiently absorbs the heat energy generated by the fuel, and collects harmful substances in the flue gas into the condensate water, reducing the emission of acidic substances and other pollutants into the air. However, the condensing heat exchanger used in the full premix hot water boiler has some shortcomings after use and research, such as the condensing heat exchanger is made of bundled round pipes, the contact area between the entire condensing heat exchanger and the flue gas is small when the flue gas passes through, which cannot further improve the absorption of heat in the flue gas, and the cooling water in the bundled pipe flows too fast, which can also cause the heat exchange effect to be poor because the heated water is discharged before it is fully heated, thus reducing the practical performance and causing other problems.

[0004] Therefore, the existing problems are studied and improved, and a core mechanism of full premix hot water boiler is provided, which aims to solve the problems and improve the practical value of the technology. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims to provide a kind of core mechanism of full premix hot water boiler, to solve the problems and deficiencies raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a kind of core mechanism of full premix hot water boiler, which is achieved by the following specific technical means:

[0007] A kind of core mechanism of full premix hot water boiler, comprising: condensing heat exchanger main body, water channel, water inlet, water outlet, baffle, fin;The inside of the condensing heat exchanger main body is provided with at least three water channels in parallel arrangement, and the upper end of the three water channels is correspondingly welded with a water inlet, and the lower end is correspondingly welded with a water outlet;The baffle is welded in the inside of water channel;The fin is in one-piece structure on the outer wall of condensing heat exchanger main body.

[0008] As a further optimization of the technical solution, the utility model provides a kind of core mechanism of full premix hot water boiler, wherein the condensing heat exchanger main body is rectangular in plan view and serpentine in side view, and the condensing heat exchanger main body is made of aluminum casting.

[0009] As further optimization of the technical scheme, the baffle is a long strip-shaped plate structure, and the baffle is welded at the turning portions of the three water channels.

[0010] As further optimization of the technical scheme, the fin is a long strip-shaped plate structure, and the fin is uniformly distributed in multiple places on the outer wall of the condensation heat exchanger body in a snakelike distribution mode.

[0011] Due to the use of the above technical scheme, the present application has the following advantages compared with the prior art:

[0012] 1. The core mechanism of the full premix hot water boiler, by setting the condensation heat exchanger body to be rectangular in plan view and snakelike in side view, and cooperating with the multiple fins on the outer wall, can increase the contact area between the flue gas and the flue gas when the flue gas passes through, improve the heat absorption effect of the flue gas, and thus make it more practical.

[0013] 2. The core mechanism of the full premix hot water boiler, by setting the condensation heat exchanger body to be rectangular in plan view and snakelike in side view, and cooperating with the baffle on the inner wall of the water channel, can slow down the flow speed of the cooling water, so that the cooling water can be fully heated, improve the heat exchange effect, and thus further improve the practical value of the device.

[0014] 3. The present application improves the structure of the above-mentioned device, has more significant condensation heat exchange effect on the boiler, makes it more practical, and has the advantages of practicality and practical value, thereby effectively solving the problems and deficiencies in the prior art and equipment. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the present application illustrated in the drawings and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 is a schematic view of the overall structure of the present application;

[0017] Figure 2 is a schematic view of the bottom structure of the present application;

[0018] Figure 3 is a schematic view of the partial cross-sectional structure of the present application;

[0019] Figure 4 is a schematic view of the fin structure of the present application;

[0020] Figure 5 is a schematic view of the baffle position structure of the present application.

[0021] In the diagram: 1. Condensing heat exchanger body, 2. Water channel, 3. Water inlet, 4. Water outlet, 5. Baffle, 6. Fins. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1 to 5 This utility model provides a specific technical implementation scheme for the core mechanism of a fully premixed hot water boiler:

[0024] The core structure of a fully premixed hot water boiler includes: a condensing heat exchanger body 1, water channels 2, inlet 3, outlet 4, baffle 5, and fins 6; the condensing heat exchanger body 1 has at least three water channels 2 arranged in parallel inside, and the upper end of the three water channels 2 is welded with an inlet 3 and the lower end is welded with an outlet 4; the baffle 5 is welded inside the water channels 2; the fins 6 are integrally structured and located on the outer wall of the condensing heat exchanger body 1.

[0025] Specifically, the condenser heat exchanger body 1 is rectangular when viewed from above and snake-shaped when viewed from the side. The condenser heat exchanger body 1 is made of cast aluminum and is combined with… Figure 1 and Figure 5 As shown, the three water channels 2 inside the main body 1 of the condenser heat exchanger are 100mm high and 500mm wide.

[0026] Specifically, the baffle 5 is a long, strip-shaped plate structure, and it is welded to the three bends of the waterway 2, and combined with... Figure 5 As shown, a 30mm gap is left between the front end of the baffle 5 and the inner wall of the water channel 2, so that it can slow down the flow of cooling water without hindering the flow of cooling water, so that the cooling water can be fully heated in the water channel 2 and the waste heat recovery effect of flue gas can be improved.

[0027] Specifically, the fins 6 are elongated, sheet-like structures, and are evenly distributed in multiple locations on the outer wall of the condenser heat exchanger body 1 in a serpentine pattern, and combined with... Figure 1 As shown, the fins 6 and the main body 1 of the condenser heat exchanger form a rectangular grid structure in a side view, which increases the contact area between the device and the flue gas when the flue gas passes through, so as to better absorb the waste heat in the flue gas and improve the condensation heat exchange effect.

[0028] Specific implementation steps:

[0029] Working principle: install the device between the exhaust port of the full premix hot water boiler and the furnace, the flue gas after gas combustion moves to the exhaust, first passes through the condensing heat exchanger body 1, absorbs the heat in the flue gas through the condensing heat exchanger body 1 and the fin 6 above, and heats the cooling water in the water channel 2, thereby condensing the flue gas, avoiding the waste of flue gas waste heat, thereby greatly improving the practicality of the device.

[0030] In summary: the core mechanism of the full premix hot water boiler, by setting the condensing heat exchanger body to be rectangular in plan view and serpentine in side view, and cooperating with the multiple fins on the outer wall, the contact area between the flue gas and the flue gas can be increased when the flue gas passes through, the heat absorption effect of the flue gas is improved, thereby making it more practical; by setting the condensing heat exchanger body to be rectangular in plan view and serpentine in side view, and cooperating with the baffle in the water channel, the flow speed of the cooling water can be slowed down, the cooling water can be fully heated, the heat exchange effect is improved, thereby further improving the practical value of the device, solving the problems existing in the prior art.

[0031] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A core mechanism of a fully premix hot water boiler, comprising: Condensing heat exchanger body (1), water channel (2), water inlet (3), water outlet (4), baffle (5), fin (6); characterized in that: the inside of the condensing heat exchanger body (1) is parallelly arranged with at least three water channels (2), and the upper end of the three water channels (2) is correspondingly welded with a water inlet (3), and the lower end is correspondingly welded with a water outlet (4); the baffle (5) is welded inside the water channel (2); the fin (6) is an integral structure on the outer wall of the condensing heat exchanger body (1).

2. A core mechanism of a fully premix hot water boiler according to claim 1, characterized in that: The condensing heat exchanger body (1) is rectangular in plan view and serpentine in side view, and the condensing heat exchanger body (1) is made of aluminum casting.

3. A core mechanism of a fully premix hot water boiler according to claim 1, characterized in that: The baffle (5) is a long strip-shaped plate structure, and the baffle (5) is welded at the corner of the three water channels (2).

4. A core mechanism of a fully premix hot water boiler according to claim 1, characterized in that: The fin (6) is a long strip-shaped sheet structure, and the fin (6) is uniformly distributed in multiple places on the outer wall of the condensing heat exchanger body (1) in a serpentine distribution manner.

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