Energy-saving methanol hot blast stove combustion chamber structure

Abstract

The utility model discloses an energy-saving methanol hot blast stove combustion chamber structure which comprises a combustor and a double-layer combustion chamber which are communicated with each other, and the double-layer combustion chamber is provided with a first barrel and a second barrel which are nested with each other to define a combustion chamber inner cavity and a heat exchange medium cavity used for storing heat exchange media. The combustor is arranged at the first end of the double-layer combustion chamber, a heat exchange assembly communicated with an inner cavity of the combustion chamber is arranged at the second end of the double-layer combustion chamber, and the heat exchange medium cavity is communicated with the heat exchange assembly. The methanol fuel is completely combusted to exchange heat with the double-row fin type heat exchanger structure, various indexes of flue gas emission can be reduced, compared with other fuels, the emission standard meets the control purpose, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of combustion chambers of methanol hot blast stoves, and particularly relates to a structure of a combustion chamber of an energy-saving methanol hot blast stove. Background Art

[0002] Hot blast stoves are mainly applied to application scenarios such as heating of agricultural greenhouses, heating of the breeding industry, and low-temperature baking. The hot air generated by the hot blast stove can raise the environmental temperature in the greenhouse to prevent crops from being frostbitten or frozen to death. It can provide a suitable environmental temperature for the breeding industry, prevent livestock from crowding and piling up, affecting feeding and drinking water, or even being crushed to death. It can provide a suitable process temperature for the low-temperature baking industry, accelerate the evaporation of moisture in nuts, medicinal materials, wood, and tobacco leaves to achieve the purpose of preservation and use.

[0003] The main problems of the existing hot blast stoves on the market include low combustion efficiency, low energy conversion rate resulting in energy waste, and high flue gas emission indicators. This application aims to provide a structure of a combustion chamber of an energy-saving methanol hot blast stove, which can achieve the full combustion of methanol fuel to the greatest extent, reduce various indicators of flue gas emissions, and improve the energy conversion rate and reduce energy waste with the structural design scheme of the combustion chamber. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a structure of a combustion chamber of an energy-saving methanol hot blast stove.

[0005] The purpose of the utility model is realized by the following technical solutions: A structure of a combustion chamber of an energy-saving methanol hot blast stove includes a burner and a double-layer combustion chamber that are communicated with each other. The double-layer combustion chamber has a first cylinder and a second cylinder nested with each other to define a combustion chamber cavity and a heat exchange medium cavity for storing a heat exchange medium. The burner is arranged at the first end of the double-layer combustion chamber, and a heat exchange component communicated with the combustion chamber cavity is arranged at the second end of the double-layer combustion chamber. The heat exchange medium cavity is communicated with the heat exchange component.

[0006] Preferably, the heat exchange component includes a housing, a first-layer finned heat exchanger, and a second-layer finned heat exchanger. The housing has a first cavity, a second cavity, and a third cavity. Wherein, when the first cavity is communicated with the combustion chamber cavity, the first-layer finned heat exchanger and the second-layer finned heat exchanger are both arranged in the first cavity.

[0007] Preferably, the first-layer finned heat exchanger has a first liquid inlet and a first liquid discharge port, the second-layer finned heat exchanger has a second liquid inlet and a second liquid discharge port, a heat exchange medium outlet pipe is arranged on the first liquid discharge port, and the second liquid discharge port is communicated with the heat exchange medium outlet pipe.

[0008] Preferably, the heat exchange medium chamber communicates with the first liquid inlet through the second chamber, and the heat exchange medium chamber communicates with the second liquid inlet through the third chamber.

[0009] Preferably, an upper heat exchange medium tank is provided at the top of the outer shell, and a lower heat exchange medium tank is provided at the bottom of the outer shell. Among them, the second chamber is defined by the inner cavity of the upper heat exchange medium tank, and the third chamber is defined by the inner cavity of the lower heat exchange medium tank.

[0010] Preferably, a liquid level sensor and a pressure limiting valve are provided on the first cylinder.

[0011] Preferably, a smoke exhaust pipe communicating with the first chamber is provided on the outer shell.

[0012] Preferably, a combustion chamber heat exchange medium inlet and a combustion chamber heat exchange medium outlet are provided on the first cylinder, and the combustion chamber heat exchange medium outlet can communicate with the second chamber and the third chamber.

[0013] Preferably, a condensate water outlet is provided on the outer shell.

[0014] The utility model has the following advantages: By completely burning methanol fuel and exchanging heat with the double-row finned heat exchanger structure, this application can reduce various indicators of flue gas emissions. Compared with other fuels, the emission standards meet the control objectives and the heat exchange efficiency is improved. Its circular double-layer combustion chamber, upper heat exchange medium tank and lower heat exchange medium tank structures achieve their functions. The heat exchange medium circulates through the inner cavity of the double-layer combustion chamber, which can absorb the heat dissipated from the combustion chamber and solve the problem of heat loss caused by the too high outer surface temperature of the combustion chamber. Similarly, the circulating heat exchange medium circulates through the inner cavities of the upper heat exchange medium tank and the lower heat exchange medium tank, which can absorb the heat dissipated from the upper and lower sides of the first finned heat exchanger and the second finned heat exchanger, and solve the problem of heat loss caused by the too high outer surface temperature of the first finned heat exchanger and the second finned heat exchanger. Thereby, the energy conversion rate is improved, energy waste is reduced, and an energy-saving effect is achieved. Description of the Drawings

[0015] Figure 1 It is a schematic structural view of the combustion chamber structure of the energy-saving methanol hot blast stove in a sectional state;

[0016] Figure 2 It is a three-dimensional structural view of the combustion chamber structure of the energy-saving methanol hot blast stove;

[0017] Figure 3 It is a three-dimensional structural view of the combustion chamber structure of the energy-saving methanol hot blast stove from another perspective;

[0018] In the figure, 1 - burner, 2 - double - layer combustion chamber, 2a - first cylinder, 2b - second cylinder, 3 - combustion chamber inner cavity, 4 - liquid level sensor, 5 - pressure - limiting valve, 6 - first - layer finned heat exchanger, 7 - second - layer finned heat exchanger, 8 - exhaust pipe, 9 - combustion chamber heat - exchange medium inlet, 10 - outer shell, 11 - heat - exchange medium, 12 - combustion chamber heat - exchange medium outlet, 13 - upper heat - exchange medium tank, 14 - lower heat - exchange medium tank, 15 - heat - exchange medium outlet pipe, 16 - condensate outlet, 17 - heat - exchange medium cavity, 18 - heat - exchange component, 10a - first cavity, 10b - second cavity, 10c - third cavity, 6a - first liquid inlet, 6b - first liquid outlet, 7a - second liquid inlet, 7b - second liquid outlet. Detailed implementation manners

[0019] The following further describes the present utility model in conjunction with the accompanying drawings. The protection scope of the present utility model is not limited to the following:

[0020] As Figures 1 to 3 shown, the present application provides an energy - saving methanol hot - air furnace combustion chamber structure, including a burner 1 and a double - layer combustion chamber 2 that are connected to each other. The double - layer combustion chamber 2 has a first cylinder 2a and a second cylinder 2b nested with each other to define a combustion chamber inner cavity 3 and a heat - exchange medium cavity 17 for storing a heat - exchange medium 11. The burner 1 is arranged at the first end of the double - layer combustion chamber 2, and a heat - exchange component 18 communicating with the combustion chamber inner cavity 3 is arranged at the second end of the double - layer combustion chamber 2. The heat - exchange medium cavity 17 communicates with the heat - exchange component 18. The heat - exchange component 18 includes an outer shell 10, a first - layer finned heat exchanger 6 and a second - layer finned heat exchanger 7. The outer shell 10 has a first cavity 10a, a second cavity 10b and a third cavity 10c. Among them, when the first cavity 10a communicates with the combustion chamber inner cavity 3, both the first - layer finned heat exchanger 6 and the second - layer finned heat exchanger 7 are arranged in the first cavity 10a. The first - layer finned heat exchanger 6 has a first liquid inlet 6a and a first liquid outlet 6b, and the second - layer finned heat exchanger 7 has a second liquid inlet 7a and a second liquid outlet 7b. A heat - exchange medium outlet pipe 15 is arranged on the first liquid outlet 6b, and the second liquid outlet 7b communicates with the heat - exchange medium outlet pipe 15. The heat - exchange medium cavity 17 communicates with the first liquid inlet 6a through the second cavity 10b, and the heat - exchange medium cavity 17 communicates with the second liquid inlet 7a through the third cavity 10c. An upper heat - exchange medium tank 13 is arranged at the top of the outer shell 10, and a lower heat - exchange medium tank 14 is arranged at the bottom of the outer shell 10. Among them, the second cavity 10b is defined by the inner cavity of the upper heat - exchange medium tank 13, and the third cavity 10c is defined by the inner cavity of the lower heat - exchange medium tank 14.

[0021] Preferably, a liquid level sensor 4 and a pressure - limiting valve 5 are arranged on the first cylinder 2a. The liquid level sensor 4 is used to monitor the liquid level height in the heat - exchange medium cavity. The pressure - limiting valve is used to relieve pressure when the pressure in the heat - exchange medium cavity is too high.

[0022] Preferably, a smoke exhaust pipe 8 communicating with the first cavity 10a is provided on the outer shell 10. The combustion gas can be discharged through the smoke exhaust pipe 8.

[0023] Preferably, a combustion chamber heat exchange medium inlet 9 and a combustion chamber heat exchange medium outlet 12 are provided on the first cylinder body 2a, and the combustion chamber heat exchange medium outlet 12 can communicate with the second cavity 10b and the third cavity 10c.

[0024] Preferably, a condensate water outlet 16 is provided on the outer shell 10. The condensate water can be discharged through the condensate water outlet.

[0025] The working principle of the present application is as follows: When the burner works, the atomized methanol will burn in the inner cavity of the combustion chamber after being ignited. The flame and flue gas generated during combustion enter the first-layer finned heat exchanger and the second-layer finned heat exchanger for heat exchange under the promotion of the burner operation. The final flue gas is collected in the smoke exhaust pipe and discharged into the atmosphere.

[0026] The heat exchange process of the heat exchange component is as follows: The energy-saving methanol hot air furnace combustion chamber structure can be configured with a circulation pump, and the circulation pump is used to pump the external heat exchange medium into the heat exchange medium cavity. The heat exchange medium flows into the upper heat exchange medium tank from the upper heat exchange medium tank inlet and into the lower heat exchange medium tank from the lower heat exchange medium tank inlet respectively. The heat exchange medium after passing through the upper heat exchange medium tank flows into the first-layer finned heat exchanger for heat exchange, and then flows out from the first liquid discharge port of the first-layer finned heat exchanger. The heat exchange medium after passing through the lower heat exchange medium tank flows into the second-layer finned heat exchanger for heat exchange, and then flows out from the second liquid discharge port of the second-layer finned heat exchanger. The heat exchange media of the two heat exchangers are collected in the heat exchange medium outlet pipe 15, and continuous heat exchange can be realized through such a cycle.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A combustion chamber structure of an energy-saving methanol hot blast stove, comprising a burner (1) and a double-layer combustion chamber (2) that are communicated with each other, characterized in that, The double-layer combustion chamber (2) has a first cylinder (2a) and a second cylinder (2b) nested with each other to define a combustion chamber inner cavity (3) and a heat exchange medium cavity (17) for storing a heat exchange medium (11). The burner (1) is arranged at the first end of the double-layer combustion chamber (2), and a heat exchange component (18) communicating with the combustion chamber inner cavity (3) is arranged at the second end of the double-layer combustion chamber (2). The heat exchange medium cavity (17) communicates with the heat exchange component (18).

2. The combustion chamber structure of the energy-saving methanol hot blast stove according to claim 1, characterized in that The heat exchange component (18) includes a housing (10), a first-layer finned heat exchanger (6) and a second-layer finned heat exchanger (7). The housing (10) has a first cavity (10a), a second cavity (10b) and a third cavity (10c). Wherein, when the first cavity (10a) communicates with the combustion chamber inner cavity (3), both the first-layer finned heat exchanger (6) and the second-layer finned heat exchanger (7) are arranged in the first cavity (10a).

3. The combustion chamber structure of the energy-saving methanol hot blast stove according to claim 2, characterized in that, The first-layer finned heat exchanger (6) has a first liquid inlet (6a) and a first liquid discharge port (6b). The second-layer finned heat exchanger (7) has a second liquid inlet (7a) and a second liquid discharge port (7b). A heat exchange medium outlet pipe (15) is arranged on the first liquid discharge port (6b), and the second liquid discharge port (7b) communicates with the heat exchange medium outlet pipe (15).

4. The combustion chamber structure of the energy-saving methanol hot blast stove according to claim 3, characterized in that, The heat exchange medium cavity (17) communicates with the first liquid inlet (6a) through the second cavity (10b), and the heat exchange medium cavity (17) communicates with the second liquid inlet (7a) through the third cavity (10c).

5. The combustion chamber structure of the energy-saving methanol hot-blast stove according to claim 4, characterized in that, An upper heat exchange medium tank (13) is arranged at the top of the housing (10), and a lower heat exchange medium tank (14) is arranged at the bottom of the housing (10). Wherein, the second cavity (10b) is defined by the inner cavity of the upper heat exchange medium tank (13), and the third cavity (10c) is defined by the inner cavity of the lower heat exchange medium tank (14).

6. The combustion chamber structure of the energy-saving methanol hot blast stove according to claim 5, characterized in that, A liquid level sensor (4) and a pressure limiting valve (5) are arranged on the first cylinder (2a).

7. The combustion chamber structure of the energy-saving methanol hot blast stove according to claim 2, characterized in that, A smoke exhaust pipe (8) communicating with the first cavity (10a) is arranged on the housing (10).

8. The combustion chamber structure of the energy-saving methanol hot blast stove according to claim 6, characterized in that, A combustion chamber heat exchange medium inlet (9) and a combustion chamber heat exchange medium outlet (12) are arranged on the first cylinder (2a), and the combustion chamber heat exchange medium outlet (12) can communicate with the second cavity (10b) and the third cavity (10c).

9. The combustion chamber structure of the energy-saving methanol hot-blast stove according to claim 6, characterized in that A condensate water outlet (16) is arranged on the housing (10).

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