CN211527196U - Heat exchange pipeline, heat exchange device and oil-fired boiler - Google Patents

Abstract

The utility model discloses a heat exchange pipeline, a heat exchange device and an oil-fired boiler, wherein a guide piece is fixedly connected in the heat exchange pipeline, and the guide piece comprises a guide plate and a plurality of baffling sheets; the guide plate is fixedly connected in the heat exchange pipeline; the guide plate is provided with a plurality of guide ports, and a plurality of baffling sheets are fixedly connected to the guide plate; each baffle plate is positioned at the side part of the flow guide port in a one-to-one correspondence manner; two adjacent baffling sheets are distributed on two sides of the deflector in a staggered manner; the baffle plate is used for guiding heat to flow to another adjacent diversion opening through one diversion opening. A heat exchange device comprises a heat exchange chamber and a heat exchange pipeline; an oil-fired boiler comprises a boiler chamber and the heat exchange device; the heat exchange device is arranged in the boiler chamber. The utility model discloses can make the delay of flue gas in heat transfer pipeline long, improve heat utilization rate.

Description

A heat exchange pipe, a heat exchange device and an oil-fired boiler

technical field

The utility model relates to the technical field of heating equipment, in particular to a heat exchange pipe, a heat exchange device and an oil-fired boiler.

Background technique

At present, the existing heating boilers are also called heating boilers, heating boilers, etc., which refer to a type of boiler that can meet people's heating requirements in winter. Generally, oil-fired boilers are used as heating boilers. During the use of oil-fired boilers, the flue gas generated by fuel oil exchanges heat with water through heat exchange pipes and then is discharged from the chimney. After the water is heated, it is regretted that it enters the house through the water pipe for heating, and the heated water will return to the boiler room for heat exchange again, and so on.

Of course, the flue gas of the existing heat exchange pipe is directly from the bottom to the top, and the flow of the flue gas is directly determined by the length of the heat exchange pipe. The longer the residence time of the flue gas in the heat exchange pipe, the higher the heat utilization rate. high. The existing practice is to lengthen the length of the heat exchange pipe, resulting in a larger overall volume of the oil-fired boiler. In addition, since the flue gas is directly in and out, the combustion debris contained in the flue gas will be directly discharged from the chimney, resulting in serious air pollution.

Utility model content

In order to overcome the deficiencies of the prior art, one of the purposes of the present invention is to provide a heat exchange pipe, which can make the flue gas stay longer in the heat exchange pipe and improve the heat utilization rate.

The second purpose of the present utility model is to provide a heat exchange device, which has high heat utilization rate in the heat exchange pipeline and improves the heat exchange efficiency of the heat exchange device.

The third purpose of the present utility model is to provide an oil-fired boiler whose baffles in the heat exchange pipes can increase the residence time of flue gas and improve energy efficiency.

One of the purposes of the present utility model adopts the following technical solutions to realize:

A heat exchange pipe, the heat exchange pipe is fixed with a guide, the guide includes a guide plate and a plurality of baffles; the guide plate is fixed in the heat exchange pipe; the guide plate is provided with A plurality of guide openings, and a plurality of baffles are fixed on the guide plate; each baffle is located on the side of the guide opening in a one-to-one correspondence; two adjacent baffles are alternately distributed on two sides of the guide plate. side; baffles are used to guide the heat flow through one guide opening to the other adjacent guide opening.

Further, both ends of the deflector extend into the two ends of the heat exchange pipe respectively.

The second purpose of the present utility model adopts the following technical solutions to realize:

A heat exchange device includes a heat exchange chamber and a heat exchange pipe; the bottom end of the heat exchange chamber is provided with a combustion chamber and a water chamber; the heat exchange pipe is fixed in the water chamber and used to heat water in the water chamber One end of the heat exchange pipe is connected to the outside of the heat exchange chamber; the other end of the heat exchange pipe is connected to the combustion chamber; the heat exchange pipe is fixed with a guide, and the guide includes a flow guide plate and a plurality of baffles; the baffle is fixed in the heat exchange pipe; a plurality of baffles are arranged on the baffle, and the plurality of baffles are fixed on the baffle; each baffle has a One is located on the side of the guide opening; two adjacent baffles are alternately distributed on both sides of the guide plate; the baffle plate is used to guide heat to flow through one guide opening to another adjacent guide opening.

Further, the water cavity is formed by an interval between the outer wall of the combustion chamber and the inner wall of the heat exchange chamber.

Further, the combustion chamber is provided at the bottom end of the heat exchange chamber; the top end of the combustion chamber is provided with a plurality of the heat exchange pipes, and the tops of the plurality of heat exchange pipes are connected to the top wall of the heat exchange chamber .

The third purpose of the present utility model adopts the following technical solutions to realize:

An oil-fired boiler includes a boiler room and the heat exchange device; the heat exchange device is arranged in the boiler room.

Further, the top of the heat exchange chamber is provided with a water outlet, a water pump and a circulation pump; the bottom end of the heat exchange chamber is provided with a water inlet; the water pump is installed in the boiler room and is located at the top of the boiler room; the circulation The water inlet of the pump communicates with the water outlet.

Further, the oil-fired boiler further includes a burner, and an ignition device of the burner communicates with the combustion chamber.

Further, the top end of the boiler chamber is provided with a first mounting plate, the bottom end of the boiler chamber is provided with a second mounting plate, the water pump is mounted on the first mounting plate, and the burner is mounted on the second mounting plate .

Compared with the prior art, the beneficial effect of the utility model is that: the heat exchange pipe is provided with a plurality of baffles, which can guide the flue gas to move along the staggered baffles, improve the flow of the flue gas, and then make the flue gas flow. The heat utilization rate is higher, and the heat exchange efficiency is higher. The heat exchange device using heat exchange pipes has higher heat exchange efficiency. In the boiler with heat exchange device, the multiple baffles in the heat exchange pipe can increase the residence time of the flue gas and improve the energy efficiency on the one hand, and on the other hand, the temperature of the flue gas reaching the outlet of the chimney can be lowered, reducing the exposure to the outside world. pollution of the environment.

Description of drawings

1 is a cross-sectional view of an oil-fired boiler of the present utility model;

Fig. 2 is the sectional view of the heat exchange device of the utility model;

Fig. 3 is the overall structure schematic diagram of the oil-fired boiler of the utility model;

FIG. 4 is a schematic structural diagram of the guide plate of the heat exchange pipe of the present invention.

In the figure: 10, boiler room; 11, oil cavity; 20, heat exchange room; 21, combustion cavity; 22, water cavity; 23, water inlet; 24, water outlet; 30, heat exchange pipe; 31, baffle ; 32, guide plate; 321, guide port; 40, water pump; 50, burner.

Detailed ways

Below, in conjunction with accompanying drawing and specific embodiment, the utility model is further described:

A heat exchange pipe 30 as shown in FIG. 1 , FIG. 2 and FIG. 4 , a guide member is fixed in the heat exchange pipe 30 , and the guide member includes a baffle plate 32 and a plurality of baffles 31 . The plate 32 is fixed in the heat exchange pipe 30, a plurality of guide openings 321 are arranged on the baffle plate 32, and the plurality of baffles 31 are all fixed on the baffle plate 32; each baffle 31 corresponds to one another Located on the side of the guide opening 321, two adjacent baffles 31 are alternately distributed on both sides of the guide plate 32, and the baffle plates are used to guide heat to flow through one guide opening 321 to another adjacent guide mouth 321.

When using the heat exchange pipe 30 of the present invention, the heat exchange pipe 30 can be installed in the heat exchange chamber 20, the heat in the heat exchange chamber 20 can be exchanged through the heat exchange pipe, and the heat flow can be obtained from one end of the heat exchange pipe 30. Flow to the other end, when the heat in the heat exchange pipe 30 enters the heat exchange pipe 30, the heat can enter through the guide port 321 at the bottom end of the baffle plate 32, because the plurality of baffles 31 are staggered and distributed on the baffle plate 32. Therefore, the upward movement of the heat from the bottommost guide opening 321 can be blocked by the baffles 31, and the heat can be guided to flow through the guide openings 321 in a staggered manner, that is, a plurality of baffles 31 can guide the flue gas along the staggered distribution. The baffles 31 move to improve the flow of the flue gas, thereby making the heat utilization rate of the flue gas higher and the heat exchange efficiency higher.

Further, both ends of the guide plate 32 respectively extend into the two ends of the heat exchange pipe 30 , that is, once the heat enters the heat exchange pipe 30 , the heat can be guided to move along the guide plate 32 . Of course, the guide plate 32 can also be directly fixed to the middle of the heat exchange pipe 30, and the partial guide plate can also prolong the heat retention time.

This embodiment can also provide a heat exchange device, see FIG. 2 and FIG. 4 ,

A heat exchange device includes a heat exchange chamber 20 and a heat exchange pipe 30, a combustion chamber 21 and a water chamber 22 are arranged at the bottom end of the heat exchange chamber 20; the heat exchange pipe 30 is fixed in the water chamber 22, and the heat exchange pipe The heat exchange pipe 30 can perform heat exchange with the water in the water cavity 22 . Specifically, one end of the heat exchange pipe 30 is connected to the outside of the heat exchange chamber 20 , and the other end of the heat exchange pipe 30 is connected to the combustion chamber 21 . A guide member is fixed in the heat exchange pipe 30 , and the guide member includes a baffle plate 32 and a plurality of baffles 31 . Specifically, the baffle plate 32 is fixed in the heat exchange pipe 30 , and the baffle plate 32 is provided with A plurality of guide openings 321, and a plurality of baffles 31 are fixed on the guide plate 32; each baffle 31 is located on the side of the guide opening 321 in a one-to-one correspondence, and two adjacent baffles 31 are staggered. On both sides of the baffle plate 32 , the baffle plates are used to guide heat to flow through one of the guide openings 321 to another adjacent guide opening 321 .

When the above heat exchange device is used, the heat exchange pipe 30 can be installed in the heat exchange chamber 20, the combustion is carried out in the combustion chamber 21, and water is introduced into the water chamber 22 at the same time, and then the heat generated by the combustion chamber enters the heat exchange pipe 30. The heat exchange can be realized by exchanging heat with the water in the water cavity 22 . Specifically, the heat flow in the heat exchange pipe 30 can flow from one end of the heat exchange pipe 30 to the other end. When the heat in the heat exchange pipe 30 enters the heat exchange pipe 30, the heat can enter through the guide port 321 at the bottom end of the guide plate 32. , since a plurality of baffles 31 are distributed on both sides of the guide plate 32 in a staggered manner, the upward movement of the heat from the guide port 321 at the bottom end can be blocked by the baffle 31, and the heat is guided to flow through the guide port 321 in a staggered manner. That is, the plurality of baffles 31 can guide the flue gas to move along the staggered baffles 31 to improve the flow of the flue gas, thereby making the heat utilization rate of the flue gas higher and the heat exchange efficiency higher.

Further, a water cavity 22 is formed between the outer wall of the above-mentioned combustion chamber 21 and the inner wall of the heat exchange chamber 20, that is, the combustion chamber 21 only needs to be provided in the heat exchange chamber 20, and the water cavity 22 does not need additional processing. Water may be directly introduced into the heat exchange chamber 20 .

Of course, a partition plate can also be directly arranged in the heat exchange chamber 20 to directly divide the internal space of the heat exchange chamber 20 into the water cavity 22 and the combustion cavity 21 .

Further, in this embodiment, the combustion chamber 21 is provided at the bottom end of the heat exchange chamber 20 , a plurality of heat exchange pipes 30 are provided at the top end of the combustion chamber 21 , and the tops of the plurality of heat exchange pipes 30 are connected to the heat exchange chamber In this way, the heat generated by the combustion chamber can flow directly from bottom to top, and the plurality of heat exchange pipes 30 can further improve the heat exchange efficiency.

This embodiment also provides an oil-fired boiler, see FIG. 1 to FIG. 4 ,

An oil-fired boiler includes a boiler room 10 and the above-mentioned heat exchange device. The heat exchange device is arranged in the boiler room 10. During operation, the burner 50 in the boiler can carry out the heat exchange in the combustion chamber 21 of the heat exchange room 20. Combustion, the generated flue gas can flow through the heat exchange pipe 30, and the plurality of baffles 31 in the heat exchange pipe 30 can improve the residence time of the flue gas and improve the energy efficiency on the one hand, and on the other hand, can make the smoke reaching the outlet of the chimney. The air temperature is low, reducing the pollution to the external environment.

Further, a water outlet 24, a water pump 40 and a circulating pump can also be provided at the top of the heat exchange chamber 20; a water inlet 23 is provided at the bottom end of the heat exchange chamber 20, and the water pump 40 is installed in the boiler room 10 and located in the boiler room. 10; the water inlet 23 of the circulating pump communicates with the water outlet 24. In this way, the water pump 40 can directly lead the high water level water to the indoor pipeline, and the heated water reaches the water cavity 22 from the bottom end of the boiler room 10 again, so as to improve the energy efficiency of the water pump 40, reduce the use power of the water pump 40, and further increase the efficiency of the water pump 40. Energy saving.

Further, the oil-fired boiler further includes a burner 50, and the ignition device of the burner 50 is communicated with the combustion chamber 21, so that the burner 50 can ignite the fuel oil, and the combustion chamber 21 generates flue gas. Of course, the burner 50 can be selected as the oil burner 50 in the prior art.

Further, in order to facilitate the installation of the water pump 40 and the burner 50, a first mounting plate may be provided at the top end of the boiler chamber 10, a second mounting plate may be provided at the bottom end of the boiler chamber 10, and the water pump 40 may be mounted on the first mounting plate. , the burner 50 is installed on the second mounting plate, so that the water pump 40 and the burner 50 can be reasonably distributed in the boiler room 10 .

For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims (9)

1. A heat exchange pipeline is characterized in that a guide piece is fixedly connected in the heat exchange pipeline, and the guide piece comprises a guide plate and a plurality of baffle plates; the guide plate is fixedly connected in the heat exchange pipeline; the guide plate is provided with a plurality of guide ports, and a plurality of baffling sheets are fixedly connected to the guide plate; each baffle plate is positioned at the side part of the flow guide port in a one-to-one correspondence manner; two adjacent baffling sheets are distributed on two sides of the deflector in a staggered manner; the baffle plate is used for guiding heat to flow to another adjacent diversion opening through one diversion opening.

2. A heat exchange tube as claimed in claim 1, wherein both ends of the flow guide plate extend into the respective ports at both ends of the heat exchange tube.

3. A heat exchange device is characterized by comprising a heat exchange chamber and a heat exchange pipeline; the bottom end of the heat exchange chamber is provided with a combustion cavity and a water cavity; the heat exchange pipeline is fixedly connected in the water cavity and is used for carrying out heat exchange on water in the water cavity; one end of the heat exchange pipeline is communicated to the outside of the heat exchange chamber; the other end of the heat exchange pipeline is communicated to the combustion chamber; a guide piece is fixedly connected in the heat exchange pipeline and comprises a guide plate and a plurality of baffling sheets; the guide plate is fixedly connected in the heat exchange pipeline; the guide plate is provided with a plurality of guide ports, and a plurality of baffling sheets are fixedly connected to the guide plate; each baffle plate is positioned at the side part of the flow guide port in a one-to-one correspondence manner; two adjacent baffling sheets are distributed on two sides of the deflector in a staggered manner; the baffle plate is used for guiding heat to flow to another adjacent diversion opening through one diversion opening.

4. The heat exchange device of claim 3 wherein the water chamber is defined by a space between an outer wall of the combustion chamber and an inner wall of the heat exchange chamber.

5. The heat exchange device of claim 3, wherein the combustion chamber is disposed at a bottom end of the heat exchange chamber; the top end of the combustion cavity is provided with a plurality of heat exchange pipelines, and the top ends of the heat exchange pipelines are communicated to the top wall of the heat exchange chamber.

6. An oil-fired boiler, characterized by comprising a boiler chamber and a heat exchange device according to any one of claims 3 to 5; the heat exchange device is arranged in the boiler chamber.

7. An oil-fired boiler as claimed in claim 6, wherein the top end of the heat exchange chamber is provided with a water outlet, a water pump and a circulating pump; the bottom end of the heat exchange chamber is provided with a water inlet; the water pump is arranged in the boiler chamber and is positioned at the top end of the boiler chamber; the water inlet of the circulating pump is communicated with the water outlet.

8. An oil boiler as claimed in claim 7, characterized in that the oil boiler further comprises a burner, the ignition device of which communicates with the combustion chamber.

9. An oil fired boiler as claimed in claim 8, wherein a first mounting plate is provided at a top end of the boiler chamber, a second mounting plate is provided at a bottom end of the boiler chamber, the water pump is mounted to the first mounting plate, and the burner is mounted to the second mounting plate.

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