Circulating type heat supply boiler capable of recovering waste heat

Abstract

The utility model relates to the technical field of heat supply boilers, in particular to a circulating heat supply boiler capable of recovering waste heat, which comprises a circulating heat supply boiler main body, a fan is arranged at the air inlet end of the circulating heat supply boiler main body, and an air inlet pipe arranged vertically upwards is fixedly mounted at the air inlet end of the fan. An air outlet pipe is fixedly installed between the air outlet end of the fan and the air inlet end of the circulating heat supply boiler body, a heat recovery assembly is arranged at the top of the circulating heat supply boiler body and comprises a chimney pipe fixedly installed at the top of a cylinder at the end of the circulating heat supply boiler body, and a conveying pipe is fixedly installed at the tail end of the chimney pipe. The tail end of the conveying pipe is fixedly provided with a reducer pipe, the tail end of the reducer pipe is fixedly provided with a spiral heat exchange pipe, the spiral heat exchange pipe is located in an air inlet pipe, and the top end of the air inlet pipe is fixedly provided with a bent pipe. The waste heat recovery device can carry out waste heat recovery operation and is beneficial to improving the utilization rate of heat energy.

Description

Technical Field

[0001] The utility model relates to the technical field of heating boilers, in particular to a circulating heating boiler capable of recovering waste heat. Background Art

[0002] A circulating heating boiler is a highly efficient and energy-saving heating equipment. The boiler generates heat energy by burning fuel, heating the water in the boiler to turn the water into hot water or steam. The hot water or steam is transported to the area that needs heating through pipes, and then the heat energy is released into the room through the radiator to complete the heating process. When the circulating heating boilers on the market are in use, since they complete the heating operation by burning raw materials, this type of circulating heating boiler is generally also provided with a pipe for discharging the exhaust gas after combustion, so that the exhaust gas generated by combustion can be discharged to the outside.

[0003] However, the exhaust gas generated by the exhaust gas exhaust pipe on this type of circulating heating boiler is generally discharged directly into the outside air. The exhaust gas exhaust pipe lacks components that can recover the heat contained in the flue gas, and cannot realize the operation of recycling the waste heat in the flue gas, which will cause this part of the heat to be wasted, which is not conducive to improving energy utilization. In view of this, we propose a circulating heating boiler that can recover waste heat. Utility Model Content

[0004] The purpose of the utility model is to provide a circulating heating boiler capable of recovering waste heat, so as to solve the defects mentioned in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A circulating heating boiler capable of recovering waste heat comprises a circulating heating boiler body, an air inlet end of the circulating heating boiler body is provided with a fan, an air inlet pipe vertically arranged upward is fixedly installed on the air inlet end of the fan, an air outlet pipe is fixedly installed between the air outlet end of the fan and the air inlet end of the circulating heating boiler body, a heat recovery component is arranged on the top of the circulating heating boiler body, the heat recovery component comprises a chimney pipe fixedly installed at the top position of the cylinder at the end of the circulating heating boiler body, a conveying pipe is fixedly installed at the end of the chimney pipe, a reducing pipe is fixedly installed at the end of the conveying pipe, a spiral heat exchange pipe is fixedly installed at the end of the reducing pipe, and the spiral heat exchange pipe is located in the air inlet pipe.

[0007] Preferably, two mutually symmetrical bases are fixedly mounted on the bottom of the circulating heating boiler body, and the bases are used for supporting operation.

[0008] Preferably, a ladder is fixedly installed on the side of the circulation heating boiler body, and the ladder is used for climbing operations.

[0009] Preferably, a bent pipe is fixedly installed on the top of the air inlet pipe, and the terminal end of the bent pipe faces downward for dust protection operation.

[0010] Preferably, a valve is fixedly mounted on the chimney pipe, and the valve is used to control the connection operation of the chimney pipe.

[0011] Preferably, an exhaust gas discharge pipe is fixedly installed at the end of the spiral heat exchange tube, and the exhaust gas discharge pipe passes through the bent tube portion, so that the exhaust gas will not affect the normal air intake operation of the bent tube portion after being discharged.

[0012] Preferably, surfaces of the chimney pipe, the delivery pipe and the reducer are all provided with a thermal insulation layer, and the thermal insulation layer is used for thermal insulation operation.

[0013] Preferably, a mesh tube is provided at the end of the curved tube, a dust filter is provided on the outside of the mesh tube, a fixing ring is fixedly installed on the top of the mesh tube, and a flange connection is provided between the fixing ring and the curved tube, so that the dust filter can be used to filter the dust in the air, reduce the entry of impurities, and ensure that the subsequent combustion process is more complete.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model sets up a heat recovery component to ensure that when in use, the heat contained in the exhaust gas generated by the combustion in the circulating heating boiler body can be used to pass into the air inlet pipe to achieve the heating operation of the air in the air inlet pipe. The heated air can ensure that the subsequent combustion process is smoother, thereby achieving the effect of recycling the waste heat.

[0016] 2. The utility model provides a mesh tube and a dust filter to ensure that when in use, the dust filter can be used to filter the dust, reduce the entry of impurities, and help ensure that the subsequent combustion process is more complete. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the heat recovery component of the utility model;

[0020] Figure 4 It is a partial structural schematic diagram of the utility model.

[0021] The meaning of each number in the figure is:

[0022] 1. Circulation heating boiler body; 10. Ladder; 11. Base; 12. Fan; 13. Air outlet pipe; 14. Air inlet pipe; 15. Bend pipe;

[0023] 2. Heat recovery component; 20. Chimney pipe; 21. Valve; 22. Delivery pipe; 23. Reducer pipe; 24. Spiral heat exchange tube; 25. Exhaust gas discharge pipe; 26. Insulation layer;

[0024] 3. Mesh cylinder; 30. Dust filter; 31. Fixing ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 4 The utility model provides a technical solution: a circulating heating boiler capable of recovering waste heat, comprising a circulating heating boiler body 1, a fan 12 is arranged at the air inlet end of the circulating heating boiler body 1, an air inlet pipe 14 arranged vertically upward is fixedly installed at the air inlet end of the fan 12, an air outlet pipe 13 is fixedly installed between the air outlet end of the fan 12 and the air inlet end of the circulating heating boiler body 1, so as to realize the air conveying operation by using the fan 12;

[0027] Specifically, a heat recovery component 2 is provided on the top of the circulating heating boiler body 1. The heat recovery component 2 includes a chimney pipe 20 fixedly installed at the top position of the cylinder at the end of the circulating heating boiler body 1. A delivery pipe 22 is fixedly installed at the end of the chimney pipe 20. A reducer 23 is fixedly installed at the end of the delivery pipe 22. A spiral heat exchange tube 24 is fixedly installed at the end of the reducer 23. The spiral heat exchange tube 24 is located in the air inlet pipe 14, so that after the exhausted exhaust gas enters the spiral heat exchange tube 24, it can exchange heat with the air in the air inlet pipe 14 to heat the air. The heated air is transported to the circulating heating boiler body 1, which can ensure that the combustion process is more complete and achieve the effect of recycling the waste heat in the exhaust gas.

[0028] In this embodiment, two mutually symmetrical bases 11 are fixedly installed at the bottom of the circulation heating boiler body 1, and the bases 11 are used for supporting operation.

[0029] Specifically, a ladder 10 is fixedly installed on the side of the circulation heating boiler body 1, and the ladder 10 is used for climbing operations.

[0030] Furthermore, a bent pipe 15 is fixedly installed at the top of the air inlet pipe 14, and the end pipe opening of the bent pipe 15 faces downward for dust protection operation.

[0031] In addition, a valve 21 is fixedly installed on the chimney pipe 20 , and the valve 21 is used to control the communication operation of the chimney pipe 20 .

[0032] It is worth mentioning that an exhaust gas exhaust pipe 25 is fixedly installed at the end of the spiral heat exchange tube 24, and the exhaust gas exhaust pipe 25 passes through the curved tube 15, so that the exhaust gas will not affect the normal air intake operation of the curved tube 15 after being discharged; the surfaces of the chimney pipe 20, the conveying pipe 22 and the reducer 23 are all provided with an insulation layer 26, and the insulation layer 26 is used for insulation operation. The insulation layer 26 can be made of rock wool material, which has a good insulation effect and can reduce heat loss.

[0033] It is worth noting that a mesh tube 3 is provided at the end of the curved tube 15, and a dust filter 30 is provided on the outside of the mesh tube 3. The mesh tube 3 is a mesh-shaped cylinder structure, which is used to support the dust filter 30. A fixing ring 31 is fixedly installed on the top of the mesh tube 3. The fixing ring 31 is flange-connected to the curved tube 15, so that the dust filter 30 can be used to filter the dust in the air, reduce the entry of impurities, and ensure that the subsequent combustion process is more complete.

[0034] When the circulating heating boiler capable of recovering waste heat of the utility model is in use, as the combustion operation is carried out, the waste gas generated can enter the spiral heat exchange tube 24 along the chimney pipe 20, the delivery pipe 22 and the reducer 23, and the hot waste gas entering the spiral heat exchange tube 24 can exchange heat with the air in the air inlet pipe 14 to achieve the heating operation of the air, and the waste gas after the heat exchange is discharged to the outside along the waste gas exhaust pipe 25. In addition, the fan 12 is connected to an external power supply and made to work, and the fan 12 works to realize the delivery of the heated air to the circulating heating boiler body 1 for use.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A circulating heating boiler capable of recovering waste heat, comprising a circulating heating boiler body (1), characterized in that: The air inlet end of the circulating heating boiler body (1) is provided with a fan (12), the air inlet end of the fan (12) is fixedly provided with an air inlet pipe (14) arranged vertically upward, an air outlet pipe (13) is fixedly provided between the air outlet end of the fan (12) and the air inlet end of the circulating heating boiler body (1), a heat recovery component (2) is provided at the top of the circulating heating boiler body (1), the heat recovery component (2) comprises a chimney pipe (20) fixedly provided at the top position of the cylinder at the end of the circulating heating boiler body (1), a conveying pipe (22) is fixedly provided at the end of the conveying pipe (22), a reducing pipe (23) is fixedly provided at the end of the reducing pipe (23), a spiral heat exchange pipe (24) is fixedly provided at the end of the reducing pipe (23), and the spiral heat exchange pipe (24) is located in the air inlet pipe (14).

2. The circulating heating boiler capable of recovering waste heat according to claim 1, characterized in that: Two mutually symmetrical bases (11) are fixedly mounted on the bottom of the circulating heating boiler body (1), and the bases (11) are used for supporting operation.

3. The circulating heating boiler capable of recovering waste heat according to claim 1, characterized in that: A ladder (10) is fixedly mounted on the side of the circulating heating boiler body (1), and the ladder (10) is used for climbing operations.

4. The circulating heating boiler capable of recovering waste heat according to claim 1, characterized in that: A bent pipe (15) is fixedly mounted on the top end of the air inlet pipe (14), and the end pipe opening of the bent pipe (15) faces downward for dust protection operation.

5. The circulating heating boiler capable of recovering waste heat according to claim 1, characterized in that: A valve (21) is fixedly mounted on the chimney pipe (20), and the valve (21) is used to control the communication operation of the chimney pipe (20).

6. The circulating heating boiler capable of recovering waste heat according to claim 4, characterized in that: An exhaust gas discharge pipe (25) is fixedly mounted at the end of the spiral heat exchange tube (24), and the exhaust gas discharge pipe (25) passes through the bent tube (15).

7. The circulating heating boiler capable of recovering waste heat according to claim 1, characterized in that: The surfaces of the chimney pipe (20), the delivery pipe (22) and the reducer (23) are all provided with a heat-insulating layer (26), and the heat-insulating layer (26) is used for heat-insulating operation.

8. The circulating heating boiler capable of recovering waste heat according to claim 4, characterized in that: A mesh tube (3) is provided at the end of the curved tube (15), a dust filter (30) is provided outside the mesh tube (3), a fixing ring (31) is fixedly installed on the top of the mesh tube (3), and the fixing ring (31) is flange-connected to the curved tube (15).

Images