CN205191889U - Gas water heater - Google Patents

Abstract

The utility model discloses a gas water heater, which belongs to the field of water heater devices and is designed for solving the problem that the CO removal catalyst of the existing gas water heater is easily poisoned. The gas water heater provided by the utility model includes a catalytic module, an air inlet for feeding air, and an air inlet for feeding gas, and also includes a purification device, wherein the purification device at least includes an air purification device located at the air inlet. One of the components and the gas purification components arranged at the air inlet. The gas water heater of the utility model can remove components in the mixed gas that are likely to cause catalyst poisoning, solve the problem that the catalyst for removing CO in the existing gas water heater is easily poisoned, and the gas water heater has a longer service life.

Description

gas water heater

technical field

The utility model relates to the field of water heater devices, in particular to a gas water heater.

Background technique

Gas water heaters are widely used due to their advantages such as fast heating, large water output, and stable temperature. When the gas water heater is in use, harmful gases such as carbon monoxide (CO) and nitrogen oxides (NO _x ) will be generated. In order to purify the harmful gases, a catalytic module is installed above the heat exchanger, and the exhaust gas treated by the catalytic module is discharged again. to the atmosphere.

The catalytic module mainly uses noble metal catalysts to treat harmful gases such as CO, but once the noble metal catalyst encounters a gas with more acidic components, such as sulfide, it will easily lead to catalyst deactivation, that is, poisoning. The noble metal catalysts of the existing gas water heaters are easily poisoned. The specific reasons are as follows: 1. The gas components will contain sulfides, such as H ₂ S, CS ₂ , mercaptan, thiophene, etc.; 2. There will be paint in the air of the user’s home decoration. Gases with pungent odors, such as chlorine, fluorine, organic silicon, etc.; water heater combustion is the combustion of a mixture of gas and air. The gas in the above two states is mixed through the combustion device of the water heater and enters the burner. Afterwards, components such as SO ₂ , SO ₃ , HCL, HF, and silane are formed, and these components are mostly acidic components, which are very toxic to noble metal catalysts and easily lead to catalyst deactivation.

In order to solve the above-mentioned problem that the combustion products of the gas water heater will poison the noble metal catalyst, it is urgently needed to provide a gas water heater with a filtering device.

Utility model content

One purpose of the utility model is to propose a gas water heater capable of removing the catalyst poisoning components in the mixed gas.

Another purpose of the utility model is to propose a gas water heater which prevents catalyst poisoning and has a longer service life.

For this purpose, the utility model adopts the following technical solutions:

A gas water heater, comprising a catalytic module, an air inlet for introducing air, and an air inlet for introducing gas, and also includes a purification device, wherein the purification device at least includes a One of the air purification assembly and the gas purification assembly arranged at the air inlet.

Further, the purifying device includes an air purifying component, and the air purifying component includes an air purifying box and an air filter element disposed in the air purifying box, for filtering catalyst-poisoning components in the air.

Further, the purification device includes a gas purification assembly, and the gas purification assembly includes a gas purification box and a gas filter element disposed in the gas purification box, for filtering catalyst poisoning components in the gas.

As a preferred solution of the present invention, the air inlet is provided with a fan, the outlet of the fan communicates with the air inlet, and the air purification assembly is arranged at the inlet of the fan.

As a preferred solution of the present utility model, the air filter element is a circular honeycomb structure, and the circular honeycomb structure is coated with nano-scale adsorption materials.

As a preferred solution of the present utility model, the gas filter element has a square honeycomb structure, and the square honeycomb structure is coated with nano-scale adsorption materials.

As a preferred solution of the present utility model, the air purification box has a circular cross-section, and the outer wall of one end of the air purification box extends outward to form a ring-shaped connecting ear.

As a preferred solution of the present invention, a fan is provided at the air inlet, and a plurality of bolt holes are opened on the connecting ear, and the connecting ear is connected to the inlet of the fan through bolts.

As a preferred solution of the present utility model, the gas purification box has a square cross-section, and gas circulation holes for gas circulation are correspondingly opened on two opposite sides of the gas purification box.

As a preferred solution of the present invention, a gas pipeline is communicated with the gas inlet, and the gas purification component is arranged on the gas pipeline.

The beneficial effects of the utility model are:

The gas water heater of the utility model includes a purifying device, which can be an air purifying assembly only arranged at the air inlet, or a gas purifying assembly only arranged at the air inlet, or an air purifying assembly arranged at the air inlet. The combination of the component and the gas purification component located at the air inlet; through the air purification component, the catalyst poisoning component in the air can be filtered out, and the catalyst poisoning component in the gas can be filtered out through the gas purification component, and the combustion products The catalyst poisoning components contained in the gas water heater are greatly reduced, and the gas water heater solves the problem that the existing gas water heater CO removal catalyst is easily poisoned, and has a longer service life.

Description of drawings

Fig. 1 is a schematic structural view of a gas water heater provided by preferred embodiment 1 of the present utility model;

Fig. 2 is a cross-sectional view of the air cleaning assembly provided by the first preferred embodiment of the present invention;

Fig. 3 is a top view of the air cleaning assembly provided by the first preferred embodiment of the present invention;

Fig. 4 is a cross-sectional view of the gas purification assembly provided by the first preferred embodiment of the present invention;

Fig. 5 is a schematic structural view of the gas water heater provided by the second preferred embodiment of the utility model;

Fig. 6 is a schematic structural view of the gas water heater provided by the third preferred embodiment of the utility model.

Labeled in the figure:

1. Catalytic module; 2. Fan; 3. Gas pipeline; 4. Air purification box; 5. Air filter element; 6. Gas purification box; 7. Gas filter element; 8. Connecting ear; 9. Gas flow hole.

detailed description

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

Preferred embodiment one:

This preferred embodiment discloses a gas water heater. As shown in Figure 1, the gas water heater includes a catalytic module 1, an air inlet for feeding air, an air inlet for feeding gas, and a purification device, wherein the purification device includes a filter for filtering the air An air purification component for catalyst poisoning components (as shown in Figure 2 and Figure 3) and a gas purification component for filtering out catalyst poisoning components in gas (as shown in Figure 4).

The air inlet is provided with a fan 2, the outlet of the fan 2 communicates with the air inlet, and the inlet of the fan 2 is provided with an air purification component;

The air purification box 4 is a circular structure with an air inlet at one end and an air outlet at the other end. The filtered air enters the inlet of the fan 2 from the air outlet, and is blown into the combustion chamber by the fan 2. In addition, the outer wall of one end of the air purification box 4 extends outwards to form a ring-shaped connecting ear 8, and a plurality of bolt holes are provided on the connecting ear 8, and the connecting ear 8 is connected to the inlet of the fan 2 through bolts; the air filter element 5 It is a circular honeycomb structure, which can be made of aluminum, plastic or ceramics. The circular honeycomb structure is coated with nano-scale adsorption materials. Due to the good adsorption capacity of nano-scale adsorption materials, it can absorb paint, etc. in the air. Gases with pungent odors are thoroughly filtered.

The gas purification box 6 is a square structure with a cross-section. On the two opposite sides of the gas purification box 6, there are corresponding gas flow holes 9 for circulating gas. The two gas flow holes 9 are connected to the gas pipeline 3 respectively. One is the air inlet, and the other is the filtered air outlet; the gas filter element 7 is a square honeycomb structure, which can also be made of materials such as aluminum, plastic or ceramics, and the square honeycomb structure is coated with nano-scale adsorption materials, which can Adsorb sulfur compounds in gas, such as H ₂ S, CS ₂ , mercaptan, thiophene, etc.

In this embodiment, the air filter element 5 and the gas filter element 7 are preferably honeycomb structures made of metal aluminum.

The above-mentioned gas water heater filters out the catalyst-poisoning components in the air through the air purification component, and filters out the catalyst-poisoning components in the gas through the gas purification component, so that the catalyst-poisoning components contained in the combustion products in the combustion chamber are extremely large. The gas water heater solves the problem that the existing gas water heater CO removal catalyst is easily poisoned and causes catalyst deactivation, and the service life of the catalyst and the gas water heater are both longer.

Preferred embodiment two:

This preferred embodiment discloses a gas water heater. As shown in Figure 5, the gas water heater includes a catalytic module 1, an air inlet for feeding air, an air inlet for feeding gas, and a purification device, wherein the purification device only includes Air cleaning components that poison catalyst components.

A fan 2 is arranged at the air inlet, the outlet of the fan 2 communicates with the air inlet, and an air purification component is arranged at the inlet of the fan 2 .

The air purification box 4 has a circular cross-section; the air filter element is a circular honeycomb structure, which can be made of aluminum, plastic or ceramics, and the circular honeycomb structure is coated with nano-scale adsorption materials.

Preferred embodiment three:

This preferred embodiment discloses a gas water heater. As shown in Figure 6, the gas water heater includes a catalytic module 1, an air inlet for introducing air, an air inlet for introducing gas, and a purification device, wherein the purification device only includes Gas purification components that poison catalyst components.

Specifically, a gas pipeline 3 is connected to the air inlet, and the gas purification component is arranged on the gas pipeline 3 .

The gas purification box 6 is a square structure in cross section, and gas flow holes for circulating gas are correspondingly provided on the two opposite sides of the gas purification box 6; the gas filter element is a square honeycomb structure, which can also be made of aluminum, plastic or ceramics, etc. The square honeycomb structure is coated with nano-scale adsorption materials, which can adsorb sulfides in gas, such as H ₂ S, CS ₂ , mercaptan, thiophene, etc.

Preferred embodiment four:

This preferred embodiment discloses a gas water heater. The gas water heater is basically the same as the gas water heater described in any one of preferred embodiments 1 to 3.

The difference is that the shape of the air filter element and/or gas filter element is not limited, it can be various forms of honeycomb structure, or other structures with filtering function, as long as it can realize the filtering function; the air purification box and/or Or the structure of the gas purification box is not limited, as long as it can be equipped with a filter element, it depends on the actual use requirements; the materials coated on the filter element include but are not limited to nano-scale adsorption materials, and other materials with strong adsorption capacity can also be used.

The above are the embodiments given in conjunction with the accompanying drawings, which are only the preferred solutions for realizing the present utility model and are not intended to limit it. Any modification to the specific implementation of the present utility model or equivalent replacement of some technical features will not depart from the utility model. The spirit of the new technical solution should be included in the scope of the technical solution claimed by the utility model. The protection scope of the utility model also includes any alternative technical solutions that those skilled in the art can think of without making creative efforts.

Claims (10)

1. a gas heater, comprise catalytic module (1), for passing into the air inlet of air and the air inlet for passing into combustion gas, it is characterized in that, also comprise purifier, wherein, described purifier at least comprises the clean air package being located at described air inlet and the one be located in the gas-purification assembly at described air inlet place.

2. a kind of gas heater according to claim 1, it is characterized in that, described purifier comprises clean air package, described clean air package comprises air purification box (4) and is located at the air filtering core (5) in described air purification box (4), for making catalyst poisoning constituents in filtering air.

3. a kind of gas heater according to claim 1, it is characterized in that, described purifier comprises gas-purification assembly, described gas-purification assembly comprises gas-purification box (6) and is located at the combustion gas filter core (7) in described gas-purification box (6), for making catalyst poisoning constituents in filtering combustion gas.

4. according to the arbitrary described a kind of gas heater of claim 1-3, it is characterized in that, described air inlet is provided with blower fan (2), the outlet of described blower fan (2) is communicated with described air inlet, and the import department of described blower fan (2) is provided with described clean air package.

5. a kind of gas heater according to claim 2, is characterized in that, described air filtering core (5) is circular alveolate texture, and described circular alveolate texture is coated with nanoscale sorbing material.

6. a kind of gas heater according to claim 3, is characterized in that, described combustion gas filter core (7) is square alveolate texture, and described square alveolate texture is coated with nanoscale sorbing material.

7. a kind of gas heater according to claim 5, it is characterized in that, described air purification box (4) is the rounded structure in cross section, and the outer wall of described air purification box (4) end stretches out and forms the engaging lug (8) of annular.

8. a kind of gas heater according to claim 7, it is characterized in that, described air inlet is provided with blower fan (2), (8) offer multiple bolt hole to described engaging lug, and described engaging lug (8) is connected by the import of bolt with described blower fan (2).

9. a kind of gas heater according to claim 6, it is characterized in that, the structure that described gas-purification box (6) is square for cross section, the gas-flow through hole (9) offered for combustion gas of circulating all corresponding on two sides that described gas-purification box (6) is relative.

10. a kind of gas heater according to claim 9, is characterized in that, described air inlet place is communicated with fuel gas pipeline (3), and described gas-purification assembly is located on described fuel gas pipeline (3).