CN207247242U - A kind of high-efficiency condensation flue gas heat recovery module furnace - Google Patents

Abstract

The utility model discloses a high-efficiency condensed flue gas heat recovery modular furnace, which relates to the technical field of flue gas recovery devices. It includes a heating module, the heating module is provided with a recovery shell for recovering high-temperature flue gas, and the recovery shell is provided with a smoke body recovery inlet, a trapped smoke cavity and a smoke body discharge port, a smoke body recovery inlet, a trapped smoke cavity and a smoke body. The exhaust outlets of the smoke body are connected, and a stainless steel high-efficiency condenser and a high-efficiency condensation heat recovery device are installed in the recovery shell. The condensation heat recovery device is connected to the cold water inlet through the condenser connecting pipe. A low-nitrogen water-cooled burner is installed under the main heat exchanger. The low-nitrogen water-cooled burner is connected to the gas inlet through a gas proportional valve. Preheating unit. The utility model can fully recover the heat in the flue gas, effectively improve the heat efficiency, save energy and protect the environment, has strong practicability and is easy to popularize and use.

Description

A high-efficiency condensed flue gas heat recovery modular furnace

technical field

The utility model relates to the technical field of flue gas recovery devices, in particular to a high-efficiency condensed flue gas heat recovery modular furnace.

Background technique

At present, the flue gas recovery device in the prior art has a single structure, and generally has the problems of high exhaust gas temperature and low heat utilization rate, and more harmful gases are emitted during the flue gas recovery process, causing environmental pollution and poor environmental protection.

Therefore, those skilled in the art are devoting themselves to developing a high-efficiency condensed flue gas heat recovery modular furnace.

Utility model content

In view of the above-mentioned defects of the prior art, the technical problem to be solved by this utility model is to provide a high-efficiency condensed flue gas heat recovery modular furnace, which has a simple structure and a reasonable design, can fully recover the heat in the flue gas, effectively improve thermal efficiency, and save energy. Environmental protection, strong practicability, easy to popularize and use.

In order to achieve the above purpose, the utility model provides a high-efficiency condensed flue gas heat recovery module furnace, including a heating module, the heating module is provided with a recovery shell for recovering high-temperature flue gas, and a smoke recovery shell is provided on the recovery shell. The inlet, the trapped smoke cavity and the smoke body discharge port are connected to the smoke body recovery inlet, the trapped smoke cavity and the smoke body discharge port. A stainless steel high-efficiency condenser and a high-efficiency condensation heat recovery device are installed in the recovery shell, and the stainless steel high-efficiency condenser passes through the heat exchanger. The connecting pipe is connected to the main heat exchanger, the main heat exchanger is connected to the hot water outlet, and the high-efficiency condensation heat recovery device is connected to the cold water inlet through the condenser connecting pipe. The burner is connected to the gas inlet through the gas proportional valve, and an air preheating device is installed around the low-nitrogen water-cooled burner.

As a preference, the outer periphery of the main heat exchanger and the low-nitrogen water-cooled burner is provided with a heat insulation layer to improve thermal efficiency.

As a preference, the smoke body recovery inlet, trapped smoke cavity, and smoke body outlet are driven by the exhaust fan to form a path for high-temperature smoke to pass through the preheating pipe.

The beneficial effects of the utility model are: the use of the condensation heat exchange device to absorb the sensible heat in the high-temperature tail gas and the latent heat released by the condensation of water vapor can fully recover the heat in the flue gas, achieve the purpose of improving thermal efficiency, save energy and protect the environment.

The conception, specific structure and technical effects of the present utility model will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present utility model.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Detailed ways

Referring to Fig. 1, the present embodiment adopts the following technical solutions: a high-efficiency condensed flue gas heat recovery modular furnace, including a heating module, the heating module is provided with a recovery shell 1 for recovering high-temperature flue gas, and the recovery shell 1 is provided with Some smoke body recovery inlet 2, trapped smoke cavity 3 and smoke body discharge port 4, stainless steel high-efficiency condenser 6, high-efficiency condensation heat recovery device 7 are installed in the recovery shell 1, and the stainless steel high-efficiency condenser 6 passes through the heat exchanger connecting pipe 8 is connected to the main heat exchanger 9, the main heat exchanger 9 is connected to the hot water outlet 10, the high-efficiency condensation heat recovery device 7 is connected to the cold water inlet 12 through the condenser connecting pipe 11, and a low-nitrogen water cooling device is installed under the main heat exchanger 9 The burner 13 and the low-nitrogen water-cooled burner 13 are connected to the gas inlet 15 through the gas proportional valve 14 , and the periphery of the low-nitrogen water-cooled burner 13 is provided with an air preheating device 16 .

It is worth noting that the outer periphery of the main heat exchanger 9 and the low-nitrogen water-cooled burner 13 is provided with a heat insulating layer 17 to improve thermal efficiency.

The smoke recovery inlet 2, the trapped smoke chamber 3 and the smoke discharge port 4 on the recovery shell 1 of this specific embodiment communicate with each other respectively, and the smoke recovery inlet 2, the trapped smoke cavity 3, and the smoke discharge port 4 pass through the exhaust fan 5 Drive to form the path of high-temperature flue gas passing through the preheating water pipe, so that the high-temperature flue gas can fully contact the preheating water pipe, so as to achieve the purpose of recovering high-temperature flue gas to preheat the cold water of the cold water pipe and improving the thermal efficiency of the modular furnace; The condensed water drain pipe at the bottom of the recovery shell uniformly collects the condensed water generated in the recovery shell to prevent the condensed water from flowing back to the burner assembly and effectively prolong the service life of the modular furnace.

The working principle of this specific embodiment is to use the high-efficiency flue gas recovery device to absorb the sensible heat in the high-temperature tail gas and the latent heat released by the condensation of water vapor through the condensing heat exchange device, so as to improve The purpose of the thermal efficiency of the boiler, and at the same time in the process of energy recovery, it can also reduce the emission of harmful gases and reduce environmental pollution: gas consumption, CO ₂ emissions, and NOx emissions are reduced. The technology adopted by this device is a new energy-saving method and environmental protection technology. The device uses a condensation heat exchange device to absorb the sensible heat in the high-temperature tail gas and the latent heat released by the condensation of water vapor to achieve the purpose of improving thermal efficiency and improve the efficiency of the condensing modular furnace. The overall heat utilization rate greatly reduces the exhaust gas temperature, fully recovers the sensible heat in the flue gas and the latent heat of condensation of water vapor, and the thermal efficiency can reach up to 104%. The thermal efficiency has been significantly improved, and it has broad market application prospects.

The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the present utility model without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection defined by the claims .

Claims (3)

1. A high-efficiency condensed flue gas heat recovery modular furnace, characterized in that: it includes a heating module, the heating module is provided with a recovery shell (1) for recovering high-temperature flue gas, and the recovery shell (1) is provided with a smoke The body recovery inlet (2), the trapped smoke cavity (3) and the smoke body discharge port (4), the smoke body recovery inlet (2), the trapped smoke cavity (3) and the smoke body discharge port (4) are connected, and the recovery shell ( 1) A stainless steel high-efficiency condenser (6) and a high-efficiency condensation heat recovery device (7) are installed inside. The stainless steel high-efficiency condenser (6) is connected to the main heat exchanger (9) through the heat exchanger connecting pipe (8). The heater (9) is connected to the hot water outlet (10), the high-efficiency condensation heat recovery device (7) is connected to the cold water inlet (12) through the condenser connecting pipe (11), and a low-nitrogen The water-cooled burner (13), the low-nitrogen water-cooled burner (13) is connected to the gas inlet (15) through the gas proportional valve (14), and the periphery of the low-nitrogen water-cooled burner (13) is provided with an air preheating device (16). 2. A high-efficiency condensed flue gas heat recovery modular furnace as claimed in claim 1, characterized in that: the periphery of the main heat exchanger (9) and the low-nitrogen water-cooled burner (13) is provided with a heat insulation layer (17). 3. A high-efficiency condensing flue gas heat recovery modular furnace as claimed in claim 1, characterized in that: said smoke body recovery inlet (2), trapped smoke chamber (3), and smoke body outlet (4) pass through The exhaust fan (5) is driven to form a path for high-temperature flue gas to pass through the preheating water pipe.