CN219036675U

CN219036675U - Heat energy recovery device for boiler waste gas

Info

Publication number: CN219036675U
Application number: CN202222573812.8U
Authority: CN
Inventors: 刘威; 刘宏; 刘小莉; 王克伟; 刘亚松
Original assignee: Henan Refeng Boiler Co ltd
Current assignee: Henan Refeng Boiler Co ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-05-16
Anticipated expiration: 2032-09-28

Abstract

The utility model discloses a heat energy recovery device for boiler waste gas, which comprises a recovery box and a boiler, wherein a water tank is arranged on one side of the recovery box, an air inlet pipe is arranged on one side of the boiler, a filter screen is arranged on the air inlet pipe, a cleaning opening is arranged at the bottom of the filter screen, the air inlet pipe penetrates through the recovery box and is connected with a curved pipeline, the curved pipeline penetrates through the recovery box and is connected with the water tank, a temperature sensor II and a control valve are arranged between the recovery box and the water tank, a water feeding pump and a temperature sensor I are arranged at the top of the recovery box, the upper end of the water feeding pump is connected with a water feeding pipe, the water feeding pipe stretches into the boiler, a water inlet pump is arranged at the bottom of the water tank, a polyurethane heat insulation layer is arranged in the inner cavity of the recovery box, and the heat energy recovery device for boiler waste gas can efficiently and fully utilize heat energy in waste gas.

Description

Heat energy recovery device for boiler waste gas

Technical Field

The utility model belongs to the technical field of boiler manufacturing, and particularly relates to a heat energy recovery device for boiler waste gas.

Background

The boiler plays different roles in various industries at present, not only can better provide energy supply, but also can promote the production of some industries, the boiler is energy conversion equipment, the energy input to the boiler is chemical energy and electric energy in fuel, the boiler outputs steam, high-temperature water or organic heat carriers with certain heat energy, and a large amount of tail gas can be generated in the using process of the boiler in industry. According to the statistics of the related data, the temperature of the tail gas discharged by the boilers used in most factories is generally 220-230 ℃, the thermal efficiency is about 86-90%, and a large amount of heat energy can be utilized in the tail gas. If the waste heat of the tail gas is wasted, the loss will be great.

In daily use, the tail gas of the gas boiler is directly discharged, so that a large amount of energy is consumed, the cost of some tail gas waste heat recovery devices with complex structures is high, the existing heat recovery devices cannot generally utilize heat to a large extent, the utilization rate is often low, the recovery efficiency is low, and heat resources are wasted.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a heat energy recovery device for boiler waste gas.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a heat recovery unit for boiler waste gas, includes collection tank, boiler, collection tank one side is equipped with the water tank, boiler one side is equipped with the intake pipe, the intake pipe is equipped with the filter screen, the filter screen bottom is equipped with the clearance mouth, the intake pipe runs through collection tank and connects bent type pipeline, bent type pipeline runs through collection tank and connects the water tank, and is equipped with temperature sensor two and control valve between collection tank and the water tank, the collection tank top is equipped with water pump and temperature sensor one, the water pump upper end is connected with the water pipe, and in the water pipe stretches into the boiler, the water tank bottom is equipped with the intake pump, the intake pump upper end is connected with the inlet tube, and the inlet tube stretches into in the collection tank, the collection tank inner chamber is equipped with the heat preservation.

Preferably, the diameter of the mesh of the filter screen is 0.5mm.

Preferably, a base is arranged at the bottom of the recovery box.

Compared with the prior art, the utility model has the beneficial effects that: this heat recovery unit for boiler waste gas is equipped with curved pipeline and control valve and can realizes taking the gaseous heat energy of abundant transfer of heat energy in the collection box, is equipped with temperature sensor and can detect the heat energy transmission condition, timely flowing water and taking the waste gas of heat energy, and the filter screen can filter the impurity in the waste gas, and the hydroenergy of heat energy after the absorption is input in the boiler again and is utilized, has realized that heat recovery utilization rate is high, and the device easy operation, low in labor strength, recovery cost is low, work efficiency is high.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

In the figure: 1 a recovery box, 2 a temperature sensor I, a 3 curved pipeline, 4 a polyurethane heat insulation layer, 5 a water inlet pipe, 6 a water inlet pump, 7 a water tank, 8 a control valve, 9 a temperature sensor II, 10 a base, 11 a water feeding pump, 12 a water feeding pipe, 13 a filter screen, 14 an air inlet pipe, 15 a cleaning port and 16 a boiler.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Examples

Referring to fig. 1, a heat energy recovery device for boiler exhaust gas comprises a recovery tank 1 and a boiler 16, a water tank 7 is arranged on one side of the recovery tank 1, an air inlet pipe 14 is arranged on one side of the boiler 16, a filter screen 13 is arranged on the air inlet pipe 14, the diameter of a mesh hole of the filter screen 13 is 0.5mm, impurities in the exhaust gas can be filtered by the filter screen, a cleaning opening 15 is arranged at the bottom of the filter screen 13, the air inlet pipe 14 penetrates through the recovery tank 1 to be connected with a curved pipeline 3, the curved pipeline 3 penetrates through the recovery tank 1 to be connected with the water tank 7, a temperature sensor two 9 and a control valve 8 are arranged between the recovery tank 1 and the water tank 7, a water feeding pump 11 and a temperature sensor one 2 are arranged at the top of the recovery tank 1, a water feeding pipe 12 is connected to the upper end of the water feeding pump 11, the water feeding pipe 12 stretches into the boiler 16, a water feeding pump 6 is arranged at the bottom of the water tank 7, a water feeding pump 6 is connected with a water feeding pipe 5, the water feeding pipe 5 stretches into the recovery tank 1, a cavity of the recovery tank 1 is provided with a polyurethane layer 4, water energy after being absorbed is input into the boiler 16 again, the heat energy is utilized by the heat energy, the heat energy recovery device is easy to operate, the heat energy recovery device has a high efficiency, and a low operation efficiency, and a low recovery efficiency, and a low heat energy recovery efficiency.

Working principle: when the water heater is used, the water inlet pump 6 works to pump water from the water tank 7 to the recovery tank 1 through the water inlet pipe 5, waste gas with heat energy in the boiler 16 is filtered into the curved pipeline 3 through the filter screen 13 from the air inlet pipe 14, water in the recovery tank 1 is observed through the first temperature sensor 2, when the water temperature is suitable, the water inlet pump 11 works, water enters the boiler 16 through the water inlet pipe 12 and is utilized, the control valve 8 is opened when the temperature of the waste gas is observed to be low from the second temperature sensor 9, and the gas flows into the water tank 7 for final heat energy transfer.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a heat recovery unit for boiler waste gas, includes collection box (1), boiler (16), collection box (1) one side is equipped with water tank (7), boiler (16) one side is equipped with intake pipe (14), its characterized in that: intake pipe (14) are equipped with filter screen (13), filter screen (13) bottom is equipped with clearance mouth (15), intake pipe (14) run through recovery tank (1) and connect bent type pipeline (3), bent type pipeline (3) run through recovery tank (1) and connect water tank (7), and be equipped with temperature sensor two (9) and control valve (8) between recovery tank (1) and water tank (7), recovery tank (1) top is equipped with water feeding pump (11) and temperature sensor one (2), water feeding pump (11) upper end is connected with water feeding pipe (12), and water feeding pipe (12) stretch into in boiler (16), water tank (7) bottom is equipped with intake pump (6), intake pump (6) upper end is connected with inlet tube (5), and in inlet tube (5) stretch into recovery tank (1), recovery tank (1) box inner chamber is equipped with polyurethane heat preservation (4).

2. A heat energy recovery device for boiler exhaust gas according to claim 1, characterized in that: the diameter of the mesh of the filter screen (13) is 0.5mm.

3. A heat energy recovery device for boiler exhaust gas according to claim 1, characterized in that: the bottom of the recovery box (1) is provided with a base (10).