CN212132872U

CN212132872U - Wall-mounted furnace capable of secondarily recycling flue gas and exchanging heat by utilizing flue gas

Info

Publication number: CN212132872U
Application number: CN202020819969.2U
Authority: CN
Inventors: 张禄勤; 黄钜钦
Original assignee: Guangdong Shikar Boiler Co ltd
Current assignee: Guangdong Shikar Boiler Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-12-11
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses a can retrieve the flue gas secondarily and utilize the flue gas to carry out hanging stove of heat transfer, including control panel and hanging stove organism, be equipped with water pump, combustor, combustion chamber, heat exchanger and fan in the hanging stove organism, the exit end of fan is equipped with the back flow, the back flow is connected with the heat exchanger, be equipped with a plurality of heat transfer water pipes on the heat exchanger, be used for the intercommunication return bend of intercommunication heat transfer water pipe and adjacent heat transfer water pipe, a plurality of flue gas pipes and be used for the second intercommunication return bend of intercommunication flue gas pipe and adjacent flue gas pipe, a plurality of heat transfer water pipes and a plurality of flue gas pipes are the staggered arrangement of pin-shaped, the flow direction of flue gas in the flue gas pipe is opposite with the flow direction of heating water at the heat transfer; the utility model discloses an add back flow and flue gas pipe on the heat exchanger to retrieve and utilize the flue gas of high temperature to carry out the secondary heat transfer, replace the heat of partial combustor, reach energy saving and emission reduction's purpose, improve heat exchange efficiency.

Description

Wall-mounted furnace capable of secondarily recycling flue gas and exchanging heat by utilizing flue gas

Technical Field

The utility model relates to a hanging stove field, in particular to but secondary recovery flue gas and utilize flue gas to carry out hanging stove of heat transfer.

Background

The existing wall-mounted furnace generally comprises a combustor, a heat exchanger and a fan, and heat generated by combustion of the combustor is discharged out of the machine body through the fan after exchanging heat with the heat exchanger. However, the flue gas directly discharged in this way generally has sufficient heat, and the direct discharging mode causes heat loss on one hand, so that the heat exchange efficiency of the wall-mounted furnace is not high, and on the other hand, the flue gas does not meet the national policies of energy conservation and emission reduction, and improvement is urgently needed.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a but secondary recovery flue gas and utilize the flue gas to carry out the hanging stove of heat transfer to solve the not enough of prior art existence.

In order to solve the technical problem, the utility model discloses a technical scheme does: a wall-mounted furnace capable of secondarily recycling flue gas and exchanging heat by utilizing the flue gas comprises a control panel and a wall-mounted furnace body, wherein a water pump, a combustor, a combustion chamber, a heat exchanger and a fan are arranged in the wall-mounted furnace body; the outlet end of fan is equipped with the back flow, the back flow is connected with the heat exchanger, be equipped with a plurality of heat transfer water pipes that transversely run through the setting on the heat exchanger, be used for the intercommunication return bend of intercommunication heat transfer water pipe and adjacent heat transfer water pipe, a plurality of flue gas pipes that transversely run through the setting and be used for the second intercommunication return bend of intercommunication flue gas pipe and adjacent flue gas pipe, the inlet end and the back flow of flue gas pipe are connected, a plurality of heat transfer water pipes and a plurality of flue gas pipes are the staggered arrangement of pin font, the flow direction of flue gas in the flue gas pipe is opposite with the flow direction of heating water at heat transfer water pipe.

As an improvement, the number of the heat exchange water pipes is fifteen, the heat exchange water pipes are arranged in three layers, and each heat exchange water pipe is arranged at equal intervals; the number of the flue gas pipes is six, the flue gas pipes are also arranged in three layers, each flue gas pipe is also arranged at equal intervals, and the flue gas pipes and the heat exchange water pipes are arranged uniformly in a crossed mode.

As an improvement, a wind pressure switch is further arranged in the wall-hanging stove body and electrically connected with the fan.

As the improvement, the bottom of hanging stove organism still is equipped with cold water inlet tube, hot water outlet pipe and gas intake pipe, the heat exchanger respectively with cold water inlet tube, hot water outlet piping connection, the gas intake pipe is connected with the gas valve.

As an improvement, an expansion water tank is arranged on the back of the wall-mounted furnace body and communicated with a cold water inlet pipe, and the diameter of the expansion water tank is equal to the width of the wall-mounted furnace body.

As an improvement, the fan is a variable speed fan, and the fan is connected with the control panel.

Compared with the prior art, the utility model discloses a technological effect does: the utility model discloses an add back flow and flue gas pipe on the heat exchanger to retrieve and utilize the flue gas of high temperature to carry out the secondary heat transfer, replace the heat of partial combustor, reach energy saving and emission reduction's purpose, improved the heat exchange efficiency of heat exchanger.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a schematic structural diagram of the present invention regarding the top view angle of the heat exchanger.

Fig. 4 is a schematic sectional view taken along line a-a of fig. 3.

Fig. 5 is a schematic structural diagram of the rear view angle of the present invention.

In the figure: control panel 1, hanging stove organism 2, water pump 3, combustor 4, combustion chamber 5, heat exchanger 6, fan 7, gas valve 8, back flow 9, wind pressure switch 10, expansion tank 11, cold water inlet tube 20, hot water outlet pipe 21, gas intake pipe 22, heat transfer water pipe 60, intercommunication return bend 61, flue gas pipe 62, second intercommunication return bend 63.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, 2 and 5, a hanging stove that can secondary recovery flue gas and utilize flue gas to carry out the heat transfer includes control panel 1 and hanging stove organism 2, be equipped with water pump 3, combustor 4, combustion chamber 5, heat exchanger 6 and fan 7 in the hanging stove organism 2, the gas input of combustor 4 is connected with gas valve 8, combustion chamber 5 locates the top of combustor 4 and is linked together with combustor 4, heat exchanger 6 locates the top of combustion chamber 5 and is connected with water pump 3, fan 7 locates the exit end of heat exchanger 6. The water pump 3, the burner 4 and the fan 7 are electrically connected to the control panel 1 through wires, as will be understood by those skilled in the art. Specifically, hanging stove organism 2's bottom still is equipped with cold water inlet tube 20, hot water outlet pipe 21 and gas intake pipe 22, heat exchanger 6 is connected with cold water inlet tube 20, hot water outlet pipe 21 respectively, gas intake pipe 22 is connected with gas valve 8, and these belong to prior art, no longer describe herein.

Further, still be equipped with wind pressure switch 10 in the hanging stove organism 2, wind pressure switch 10 is connected with fan 7 electricity, fan 7 also can be the variable speed fan, fan 7 is connected with control panel 1, and the convenient wind speed of adjusting of variable speed fan can stably support when using, keeps the burning abundant.

Further, the back of hanging stove organism 2 department is equipped with expansion tank 11, expansion tank 11 is linked together with cold water inlet tube 20, expansion tank 11's diameter equals with hanging stove organism 2's width. The expansion tank 11 plays a role of reducing water pressure, and the size of the expansion tank 11 is further increased, providing a larger space to implement the role of buffering water pressure.

As shown in fig. 2, 3 and 4, a return pipe 9 is arranged at an outlet end of the fan 7, the return pipe 9 is connected with the heat exchanger 6, the return pipe 9 collects high-temperature flue gas through the fan 7, and then the collected high-temperature flue gas is led to the heat exchanger 6, so that part of heat can be supplemented to the heat exchanger 6, and the purpose of energy conservation is achieved. The collected and utilized high-temperature flue gas is changed into relatively low-temperature flue gas and then is discharged out of the wall-mounted furnace body 2, so that the aim of secondary recycling is fulfilled. Specifically, the heat exchanger 6 is provided with a plurality of heat exchange water pipes 60 transversely penetrating through the heat exchanger, a communication elbow 61 for communicating the heat exchange water pipes 60 with the adjacent heat exchange water pipes 60, a plurality of flue gas pipes 62 transversely penetrating through the heat exchanger, and a second communication elbow 63 for communicating the flue gas pipes 62 with the adjacent flue gas pipes 62, wherein the air inlet end of the flue gas pipes 62 is connected with the return pipe 9, the heat exchange water pipes 60 and the flue gas pipes 62 are staggered in a delta shape, the flow direction of flue gas in the flue gas pipes 62 is opposite to that of heating water in the heat exchange water pipes 60, and the high-temperature flue gas can exchange heat with water in the heat exchange water pipes 60 to the greatest extent by the design of opposite flow direction, so that the fluid mechanics and physical laws are met. In this embodiment, the number of heat exchange water pipe 60 is eighteen, divide into the three-layer setting, and each layer transversely is equipped with five heat exchange water pipe 60, and every heat exchange water pipe 60 sets up with the equal interval. The number of the flue gas pipes 62 is six, the three-layer flue gas pipes are also arranged, two flue gas pipes 62 are transversely arranged on each layer, each flue gas pipe 62 is also arranged at equal intervals, the flue gas pipes 62 and the heat exchange water pipes 60 are uniformly arranged in a crossed mode, the flue gas pipes 62 on each layer are respectively arranged below the heat exchange water pipes 60 on the corresponding layer, accordingly, staggered arrangement in a shape like a Chinese character 'pin' is formed, the flowing direction and the flue gas direction are opposite, high-temperature flue gas can be in contact with the heat exchange water pipes 60 to the maximum extent, the heat exchange efficiency of the heat exchanger 6 is improved, meanwhile, the heat of the high-temperature flue gas can be used for replacing combustion heat of the combustor 4, the output power of the combustor 4 is reduced, and the purposes of energy. It should be further emphasized that the number of the heat exchange water pipes 60 and the number of the flue gas pipes 62 can be set according to the actual size of the heat exchanger 6, and the above should not be taken as a limitation, but all the changes in number are within the scope of the present invention.

Further, the heat exchange water pipe 60 is provided with heat exchange fins, as will be understood by those skilled in the art.

To sum up, the utility model discloses an add back flow 9 and flue gas pipe 62 on heat exchanger 6 to retrieve and utilize the flue gas of high temperature to carry out the secondary heat transfer, replace partial combustor 4's heat, reach energy saving and emission reduction's purpose, improved heat exchange efficiency of heat exchanger 6.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a but secondary recovery flue gas and utilize flue gas to carry out hanging stove of heat transfer which characterized in that: the wall-mounted boiler comprises a control panel (1) and a wall-mounted boiler body (2), wherein a water pump (3), a combustor (4), a combustion chamber (5), a heat exchanger (6) and a fan (7) are arranged in the wall-mounted boiler body (2), the gas input end of the combustor (4) is connected with a gas valve (8), the combustion chamber (5) is arranged at the top of the combustor (4) and communicated with the combustor (4), the heat exchanger (6) is arranged at the top of the combustion chamber (5) and connected with the water pump (3), and the fan (7) is arranged at the outlet end of the heat exchanger (6);

the outlet end of fan (7) is equipped with back flow (9), back flow (9) are connected with heat exchanger (6), be equipped with a plurality of heat transfer water pipes (60) that transversely run through the setting on heat exchanger (6), be used for intercommunication heat transfer water pipe (60) and adjacent heat transfer water pipe (60) intercommunication return bend (61), a plurality of flue gas pipe (62) that transversely run through the setting and be used for intercommunication flue gas pipe (62) and adjacent flue gas pipe (62) second intercommunication return bend (63), the inlet end and the back flow (9) of flue gas pipe (62) are connected, a plurality of heat transfer water pipes (60) and a plurality of flue gas pipe (62) are the range of pin-shaped, the flow direction of flue gas in flue gas pipe (62) is opposite with the flow direction of heating water in heat transfer water pipe (60) in the dislocation.

2. The wall-mounted boiler capable of secondarily recycling the flue gas and exchanging heat by using the flue gas as claimed in claim 1, is characterized in that: eighteen heat exchange water pipes (60) are arranged in three layers, and each heat exchange water pipe (60) is arranged at equal intervals; the number of the flue gas pipes (62) is six, the flue gas pipes are also arranged in three layers, each flue gas pipe (62) is also arranged at equal intervals, and the flue gas pipes (62) and the heat exchange water pipes (60) are arranged uniformly in a crossed mode.

3. The wall-mounted boiler capable of secondarily recycling the flue gas and exchanging heat by using the flue gas as claimed in claim 1, is characterized in that: still be equipped with wind pressure switch (10) in hanging stove organism (2), wind pressure switch (10) are connected with fan (7) electricity.

4. The wall-mounted boiler capable of secondarily recycling the flue gas and exchanging heat by using the flue gas as claimed in claim 1, is characterized in that: the bottom of hanging stove organism (2) still is equipped with cold water inlet tube (20), hot water outlet pipe (21) and gas intake pipe (22), heat exchanger (6) are connected with cold water inlet tube (20), hot water outlet pipe (21) respectively, gas intake pipe (22) are connected with gas valve (8).

5. The wall-mounted boiler capable of secondarily recycling the flue gas and exchanging heat by using the flue gas as claimed in claim 1, is characterized in that: the back department of hanging stove organism (2) is equipped with expansion tank (11), expansion tank (11) are linked together with cold water inlet tube (20), the diameter of expansion tank (11) equals with the width of hanging stove organism (2).

6. The wall-mounted boiler capable of secondarily recycling the flue gas and exchanging heat by using the flue gas as claimed in claim 1, is characterized in that: the fan (7) is a variable speed fan, and the fan (7) is connected with the control panel (1).