CN202813780U - Condensing-type wall-mounted gas boiler - Google Patents

Abstract

The utility model relates to a condensing gas wall-hung boiler, which comprises a furnace body and a heat exchanger arranged in the furnace body. The upper end and the lower end of the furnace body are respectively provided with a blower and a smoke pipe communicating with the inside thereof. The heat exchange An ignition needle is arranged on the furnace body at the upper part of the device, and the feature is that: the heat exchange mechanism is several heat exchange fins distributed in parallel along the horizontal direction, and water passage pipes are arranged between adjacent heat exchange fins. The left and right water pipes of the aluminum alloy heat exchanger of the utility model adopt die-cast silicon aluminum alloy, which has the characteristics of corrosion resistance, and the internal high heat exchange rate water channel and fins greatly improve the heat exchange efficiency, and at the same time have a novel structure, Energy saving and environmental protection, low carbon economy features.

Description

Condensing gas wall-hung boiler

Technical field:

The utility model relates to a condensing gas wall hanging furnace.

Background technique

The thermal efficiency generated by the condensing gas wall-hung boiler can reach more than 96%, which can save energy by more than 12% compared with the ordinary gas water heater with a third-level energy efficiency of 84%. At the same time, it can also reduce the emission of toxic and harmful gases such as nitrogen oxides. and environmental advantages. Over the years, it has been one of the products vigorously promoted and used in developed countries.

The heat exchanger of the traditional wall-hung furnace uses copper as the main raw material, but China's copper resources are scarce, and about 50% of electrolytic copper depends on imports. In addition, the European ROSH environmental protection directive restricts the lead content of products, and the domestic environmental protection requirements are also increasing. The environmental protection requirements for production enterprises are becoming more and more stringent. Enterprises must improve the process and materials of the existing lead-impregnated copper heat exchangers. Therefore, finding new alternative materials has become an inevitable trend in the development of gas appliance products.

At present, the stainless steel heat exchangers and carbon steel heat exchangers used in the wall-hung boilers on the market have the defects of heavy weight, high combustion noise, large volume, low heat transfer efficiency and poor corrosion resistance.

Contents of the invention

In order to overcome the defects of the prior art, the utility model provides a condensing gas wall-hung boiler which is corrosion-resistant, has small water resistance, good fluidity, low combustion noise and can fully absorb heat sources. The technical solution of the utility model is: a condensing gas wall-hung boiler, including a furnace body and a heat exchanger arranged in the furnace body, the upper end and the lower end of the furnace body are respectively provided with a blower and a smoke pipe communicating with the inside thereof, the The furnace body at the upper part of the heat exchanger is provided with an ignition needle, which is characterized in that: the heat exchanger is a plurality of heat exchange fins distributed in parallel along the horizontal direction, and a water outlet is provided between adjacent heat exchange fins. Pipe, the inner wall of the water passing pipe is covered with corrugated protrusions.

Left and right water pipes communicating with the inside of the furnace body are respectively arranged on the left and right sides of the furnace body, and the left and right water pipes communicate with the water passing pipe.

The furnace body includes a shell with openings at both ends, an upper cover and a lower cover installed at the opening of the shell, the blower is installed on the upper cover, and the smoke pipe is installed on the lower cover.

The smoke pipe extends upwards, and its smoke outlet is higher than the upper end of the furnace body.

A flame detection needle is arranged on the housing close to the ignition needle.

The shell is provided with a fire viewing hole.

Compared with the prior art, the utility model has the following advantages: the left and right water pipes of the aluminum alloy heat exchanger of the utility model adopt die-casting silicon-aluminum alloy, which has the characteristics of corrosion resistance, and the internal high heat exchange rate water channel and fins are added, which is extremely The heat exchange efficiency is greatly improved, and at the same time, it has the characteristics of novel structure, energy saving and environmental protection, and low-carbon economy.

Description of drawings

Fig. 1 is a schematic diagram of the main structure of the utility model;

Fig. 2 is a schematic diagram of the internal structure of the utility model furnace body.

Detailed ways

Referring to Fig. 1 and Fig. 2, the utility model relates to a condensing gas wall-hung boiler, including a furnace body and a heat exchanger arranged in the furnace body, the furnace body includes a shell 1 with openings at both ends and a shell 1 installed on the shell 1 The upper cover 2 and the lower cover 3 at the opening, the blower 7 is installed on the upper cover 2, the smoke pipe 6 is installed on the lower cover 3, and the shell 1 is provided with a fire viewing hole 8.

The upper end and the lower end of the furnace body are respectively provided with a blower 7 and a smoke pipe 6 communicating with the inside thereof, and the furnace body at the upper part of the heat exchanger is provided with an ignition needle 9, and the heat exchangers are several parallel distributed along the horizontal direction. The heat exchange fins 10 are provided with water pipes 11 between adjacent heat exchange fins 10. The material of the furnace body is welded with aluminum plates, which is corrosion-resistant. The material of the water pipes is silicon aluminum, which can resist gas corrosion in high temperature areas. The water resistance is small and the fluidity is good, which makes the water turbulent, forces heat exchange, and reduces combustion noise; the heat exchange fins are made of silicon aluminum alloy, which is acid-resistant and corrosion-resistant, and has micro-gap heat exchange. During the heat transfer process, the fins promote the turbulence of the fluid, Destroying the thermal boundary layer fully absorbs the heat source; the smoke pipe 6 extends upwards, and its smoke outlet is higher than the upper end of the furnace body.

A left water pipe 4 and a right water pipe 5 communicating with the interior of the furnace body are respectively arranged on the left and right sides of the furnace body, and the left and right water pipes are communicated with the water passage 11 . The material of the left and right water pipes is made of silicon aluminum, which is corrosion-resistant, has small water resistance and good flow properties, and the water flow is sufficient to meet the requirements of the set water temperature rise and coincide with the maximum power.

A flame detection needle 12 is provided on the housing close to the ignition needle 9 for detecting the flame temperature.

The inner wall of the water passage 11 is covered with corrugated protrusions (not shown).

Claims (6)

1. condensing gas wall hanging stove, comprise body of heater and be arranged on the interior heat exchanger of body of heater, the top and bottom of described body of heater are respectively arranged with its internal communication air blast and smoke pipe, be provided with ignition electrode in the body of heater on described heat exchanger top, it is characterized in that: described heat exchanger is the heat exchange fin of the parallel distribution of several along continuous straight runs, be provided with water pipeline between the adjacent heat exchange fin, be covered with the ripple detent projection on the inwall of described water pipeline.

2. condensing gas wall hanging stove according to claim 1, it is characterized in that: be respectively arranged with the left waterpipe and the right waterpipe that communicate with body of heater inside in the left and right sides of described body of heater, described left and right waterpipe communicates with water pipeline.

3. condensing gas wall hanging stove according to claim 1 is characterized in that: described body of heater comprises the housing of both ends open and is installed in loam cake and the lower cover at shell nozzle place, and described air blast is installed in and covers, and described smoke pipe is installed in down and covers.

4. condensing gas wall hanging stove according to claim 1, it is characterized in that: described smoke pipe extends upward, and its outlet flue is higher than the upper end of body of heater.

5. condensing gas wall hanging stove according to claim 3 is characterized in that: be provided with flame at the housing near described ignition electrode place and detect pin.

6. condensing gas wall hanging stove according to claim 3 is characterized in that: be provided with flame-observing hole on the described housing.

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