CN217685861U

CN217685861U - Heat exchange low-nitrogen hot water boiler

Info

Publication number: CN217685861U
Application number: CN202123329200.6U
Authority: CN
Inventors: 李跃龙; 卢海涛; 冯俊燚; 李晓煜; 梁晓静; 闫志刚; 杨俭
Original assignee: Fangkuai Boiler Co ltd
Current assignee: Fangkuai Boiler Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-10-28
Anticipated expiration: 2031-12-27

Abstract

The utility model provides a heat exchange low-nitrogen hot water boiler, which relates to the technical field of heat energy equipment, and comprises a boiler body, wherein the boiler body comprises a heat exchange element arranged in the boiler body, the heat exchange element is a wing heat exchange tube group and comprises a water storage shell, a burner and a boiler liner are arranged on the water storage shell, a water storage cavity is arranged in the water storage shell, and a water inlet and a water outlet which are respectively communicated with the water storage cavity are arranged on the water storage shell; the high temperature flue gas that the combustor produced gets into to the inside of wing heat transfer pipe group and discharges to the outside of retaining shell from the lower extreme of wing heat transfer pipe group in the furnace pipe, and the inside cold water of retaining cavity exchanges the heat through wing heat transfer pipe group with the high temperature flue gas, makes vapor discharge from the delivery port, the utility model discloses a wing structure heat exchange tube improves heat exchange efficiency, reduces boiler area.

Description

Heat exchange low-nitrogen hot water boiler

Technical Field

The utility model relates to a heat energy equipment technical field specifically is a heat transfer low-nitrogen hot water boiler.

Background

At present, most heating furnaces in the market are placed in basements or houses with narrow spaces, the requirement for small occupied area of the heating furnaces is more and more rigorous, and the market competitiveness is also very strong.

Common heat transfer component of traditional heating stove has smooth light pipe, screwed pipe etc. although having in China many heating stove producers possessed certain manufacturing capability, nevertheless because the research to high-efficient heat transfer and low nitrogen technique application is not enough stretched into, the product still has the problem that heat exchange efficiency is low to lead to boiler's occupation of land space great.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat transfer low-nitrogen hot water boiler aims at solving among the prior art problem that the heating stove takes up an area of the space big.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the heat exchange low-nitrogen hot water boiler comprises a heat exchange element arranged in a boiler body, wherein the heat exchange element is a wing heat exchange tube set.

In order to make the utility model discloses have the effect of condensation flue gas, the utility model discloses a further technical scheme does, the boiler body includes the retaining shell, be equipped with combustor and stove courage on the retaining shell, the inside of retaining shell is provided with the retaining cavity, be equipped with on the retaining shell respectively with the water inlet and the delivery port of retaining cavity intercommunication, wing heat exchange tube group be used for with the inside cold water of retaining cavity carries out the heat exchange, the upper end and the outside intercommunication of stove courage intercommunication, lower extreme and retaining shell of wing heat exchange tube group, the flue gas that the combustor produced gets into to the inside of wing heat exchange tube group and discharges from the lower extreme of wing heat exchange tube group in the stove courage.

The utility model discloses a further technical scheme does, the lower extreme of retaining shell is connected with the smoke chamber shell, form sealed flue gas condensation chamber between smoke chamber shell and the retaining shell, flue gas in the furnace pipe enters into the inside to the flue gas condensation chamber through wing heat exchange tube group, still be equipped with the outlet flue on the flue gas condensation chamber.

In order to make the utility model discloses have the effect of conveniently discharging the comdenstion water, the utility model discloses a further technical scheme does, combustor fixed mounting is on the top surface of retaining shell, stove courage fixed connection is at the interior roof of retaining shell, stove courage and smoke chamber shell set up to the integrated into one piece structure.

The utility model discloses a further technical scheme does, the inside fixedly connected with condensation guide plate of flue gas condensation chamber, the condensation guide plate is so that the comdenstion water is discharged from the outlet flue towards the direction downward sloping of outlet flue.

The further technical proposal of the utility model is that the bottom of the smoke outlet is provided with a condensed water outlet

In order to make the utility model discloses have the effect that heat exchange efficiency is high, the utility model discloses a further technical scheme does, feather wing heat exchange tube group is including a plurality of feather wing pipes, every the cross-section of feather wing pipe from top to bottom, the area of flue gas runner accounts for the proportion in whole cross-section and reduces gradually.

In order to make the utility model discloses have the effect that heat exchange efficiency is high, the utility model discloses a further technical scheme does, feather wing heat exchange tube group is including a plurality of feather wing pipes, every the cross-section of feather wing pipe is from top to bottom, and the area of flue gas runner accounts for the proportion in whole cross-section to be the same.

The utility model discloses a further technical scheme does, the water inlet is located one side lower part of retaining shell, the delivery port is located one side upper portion of retaining shell, the opposite side upper portion of retaining shell still is equipped with reserve mouth.

The utility model discloses a further technical scheme does, one side lower part of retaining shell is equipped with the drain that is used for discharge impurity and incrustation scale, drain and retaining cavity intercommunication.

The utility model has the advantages that:

1. the utility model discloses a wing structure heat exchange tube improves heat exchange efficiency, reduces boiler area.

2. The hot water boiler is integrated, low-nitrogen combustion, efficient combination of three technologies of wing heat exchange and flue gas condensation wholly dispatch from the factory, simple to operate.

3. After the high-temperature flue gas exchanges heat with cold water, the temperature is reduced, condensed water can be collected on the condensation guide plate, and the condensed water can be discharged from the smoke outlet under the action of gravity due to the fact that one end of the condensation guide plate inclines downwards.

Drawings

FIG. 1 is a schematic structural view of the interior of a boiler according to the present invention;

FIG. 2 is a schematic front view of a variable cross-section wing tube according to the present invention;

FIG. 3 is a cross-sectional view of A1-A1 of FIG. 2 according to the present invention;

FIG. 4 is a cross-sectional view of B1-B1 of FIG. 2 according to the present invention;

FIG. 5 is a cross-sectional view of C1-C1 of FIG. 2 according to the present invention;

FIG. 6 is a front view of the constant cross-section wing tube of the present invention;

FIG. 7 is a cross-sectional view of A2-A2, B2-B2, C3-C3 of FIG. 6 according to the present invention;

fig. 8 is a perspective view of the present invention in a cut-away state in fig. 7.

In the figure: 1. a water storage housing; 2. a furnace pipe; 3. a water storage chamber; 4. a water inlet; 5. a water outlet; 6. a smoking chamber housing; 7. a flue gas condensing chamber; 8. a smoke outlet; 9. a condensed water outlet; 10. a spare port; 11. An exhaust port; 12. a sewage draining port; 13. a group of wing heat exchange tubes; 14. a condensation baffle; 15. a burner.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings.

As shown in figure 1, a heat transfer low nitrogen boiler, including establishing the heat transfer component in the boiler body, heat transfer component is wing heat transfer pipe group 13, the utility model discloses a wing structure heat exchange tube improves heat exchange efficiency, reduces boiler area.

The hot water boiler comprises a water storage shell 1, a combustor 15 and a boiler furnace 2 are arranged on the water storage shell 1, a water storage cavity 3 is arranged in the water storage shell 1, a water inlet 4 and a water outlet 5 which are respectively communicated with the water storage cavity 3 are arranged on the water storage shell 1, a wing heat exchange tube group 13 capable of exchanging heat with cold water in the water storage cavity 3 is fixedly arranged on the water storage shell 1, the upper end of the wing heat exchange tube group 13 is communicated with the boiler furnace 2, the lower end of the wing heat exchange tube group is communicated with the outside of the water storage shell 1, and smoke generated by the combustor 15 enters the inside of the wing heat exchange tube group 13 from the boiler furnace 2 and is discharged from the lower end of the wing heat exchange tube group 13.

In this embodiment, the high temperature flue gas generated by the burner 15 enters the inside of the wing heat exchange tube set 13 from the furnace 2 and is discharged to the outside of the water storage housing 1 from the lower end of the wing heat exchange tube set 13, and the cold water and the high temperature flue gas inside the water storage chamber 3 exchange heat through the wing heat exchange tube set 13, so that the water vapor is discharged from the water outlet 5.

In another embodiment of the utility model, the lower extreme of retaining shell 1 is connected with smoke chamber shell 6, forms sealed flue gas condensation chamber 7 between smoke chamber shell 6 and the retaining shell 1, and flue gas in the furnace pipe 2 passes through wing heat transfer pipe group 13 and gets into to the inside of flue gas condensation chamber 7, still is equipped with outlet flue 8 on the flue gas condensation chamber 7.

Specifically, 15 fixed mounting of combustor on the top surface of retaining shell 1, furnace pipe 2 fixed connection is at the interior roof of retaining shell 1, furnace pipe 2 and smoke chamber shell 6 set up to the integrated into one piece structure, boiler formula as an organic whole, low nitrogen combustion, the effective combination of three techniques of feather heat transfer and flue gas condensation, wholly leave the factory, simple to operate, what need explain, retaining shell 1 also can set detachable with smoke chamber shell 6 into, can dismantle the connection through the ring flange between the two, the leakproofness is better.

Specifically, the inside fixedly connected with condensation guide plate 14 of flue gas condensation chamber 7, condensation guide plate 14 is towards the direction downward sloping of outlet flue 8 so that the comdenstion water is discharged from outlet flue 8, and after the heat exchange of high temperature flue gas and cold water, the temperature reduces, and the comdenstion water can collect on condensation guide plate 14, because the one end downward sloping of condensation guide plate 14, makes the comdenstion water can receive gravity and discharge from outlet flue 8.

Specifically, a condensed water outlet 9 is arranged at the bottom of the smoke outlet 8, and condensed water can be discharged from the condensed water outlet 9.

Specifically, the fin heat exchange tube set 13 includes a plurality of fin tubes, the cross section of each fin tube along the length direction thereof is from top to bottom, the ratio of the area of the flue gas flow passage to the entire cross section is gradually reduced, in the chinese utility model patent with the granted publication number CN209214434U, a variable cross section fin tube is provided, the flue gas flow passage is respectively an embedded fin tube a, an embedded fin tube B, and an embedded fin tube C from the high temperature region to the low temperature region in the flue gas stroke, the gap between the fin pieces in the fin tube constitutes the flue gas passage, and the ratio of the area of the flue gas flow passage to the entire cross section is gradually reduced from the flue gas path direction, it is worth explaining that the fin tubes are not only three kinds of embedded fin tubes a, B, and C, but also can be four kinds, five kinds, or even more kinds of embedded fin tubes with different cross sections, as shown in the front view of the fin tubes in fig. 2, fig. 3 to fig. 6 are cross-sectional views of three positions of the fin tubes, and it can be explained that the ratio of the area of the flue gas flow passage to the entire cross section is gradually reduced from the flue gas path direction of the flue gas path.

Specifically, the fin heat exchange tube set 13 includes a plurality of fin tubes, and the ratio of the area of the flue gas flow channel to the entire cross section is the same from top to bottom in the cross section of each fin tube, that is, the cross section of the fin tube is constant from top to bottom, as shown in fig. 7, which is a fin tube with a constant cross section, fig. 8, which is a cross section of three positions in fig. 7, it can be described that the cross section of the three positions is the same, and fig. 8 is a perspective view of the fin tube in a cut-open state.

Specifically, the water inlet 4 is located on the lower portion of one side of the water storage shell 1, the water outlet 5 is located on the upper portion of one side of the water storage shell 1, the standby port 10 is further arranged on the upper portion of the other side of the water storage shell 1, and the standby port 10 is opened, so that water vapor can be discharged from the standby port 10.

Specifically, the water storage shell 1 is provided with an air outlet 11 communicated with the water storage cavity chamber 3, and the air outlet 11 is used for removing accumulated air, so that cold water can be filled in the body to the maximum extent.

Specifically, one side lower part of retaining shell 1 is equipped with drain 12 that is used for discharge impurity and incrustation scale, and drain 12 and water storage chamber 3 intercommunication are convenient for get rid of impurity and incrustation scale in the cold water, effectively guarantee the heat transfer effect.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. The utility model provides a heat transfer low-nitrogen hot water boiler, is including establishing the internal heat transfer component of boiler body, its characterized in that: the heat exchange element is a wing heat exchange tube set (13); the boiler body comprises a water storage shell (1), a combustor (15) and a boiler furnace (2) are arranged on the water storage shell (1), a water storage cavity (3) is arranged inside the water storage shell (1), a water inlet (4) and a water outlet (5) which are respectively communicated with the water storage cavity (3) are formed in the water storage shell (1), a wing heat exchange tube set (13) is used for exchanging heat with cold water inside the water storage cavity (3), one end of the wing heat exchange tube set (13) is communicated with the boiler furnace (2), the other end of the wing heat exchange tube set is communicated with the outside of the water storage shell (1), and smoke generated by the combustor (15) enters the inside of the wing heat exchange tube set (13) from the boiler furnace (2) and is discharged from the wing heat exchange tube set (13).

2. The heat exchange low-nitrogen hot water boiler according to claim 1, wherein a smoke chamber shell (6) is connected to the water storage shell (1), a sealed smoke condensing chamber (7) is formed between the smoke chamber shell (6) and the water storage shell (1), smoke in the boiler furnace (2) enters the inside of the smoke condensing chamber (7) through a wing heat exchange tube set (13), and a smoke outlet (8) is further formed in the smoke condensing chamber (7).

3. A heat exchange low nitrogen hot water boiler according to claim 2, characterized in that the burner (15) is provided on the top surface of the water holding housing (1), and the furnace (2) is fixedly connected to the inner top wall of the water holding housing (1).

4. A heat exchange low nitrogen hot water boiler according to claim 3, characterized in that the water storage housing (1), the boiler furnace (2) and the flue chamber housing (6) are provided as an integral structure.

5. A heat exchange low nitrogen hot water boiler according to claim 3, characterized in that a condensation deflector (14) is fixedly connected to the inside of said flue gas condensation chamber (7) to allow condensed water to flow to the flue gas outlet (8) and to be discharged.

6. A heat exchange low nitrogen hot water boiler according to claim 5, characterized in that the condensation deflector (14) is inclined downwardly towards the outlet (8) to drain condensed water from the outlet (8).

7. A heat exchange low nitrogen hot water boiler according to claim 5, characterized in that said outlet (8) is provided with a drain (9) for condensed water.

8. A heat exchange low nitrogen hot water boiler according to any one of claims 1 to 7, characterized in that said group of said wing heat exchange tubes (13) comprises a plurality of wing tubes, and the ratio of the area of the flue gas flow path to the whole cross section is different from the top to the bottom of the cross section of each of said wing tubes.

9. The heat exchange low-nitrogen hot water boiler according to claim 8, wherein the flue gas flow passage area of each of the wing pipes is gradually reduced in proportion to the whole cross section from top to bottom.

10. A heat exchange low nitrogen hot water boiler according to any one of claims 1 to 7, characterized in that said group of said wing heat exchange tubes (13) comprises a plurality of wing tubes, and the ratio of the area of the flue gas flow path in the whole section is the same from top to bottom in the section of each of said wing tubes.

11. A heat exchange low nitrogen hot water boiler according to any one of claims 2 to 7, characterized in that the height of the water inlet (4) is lower than the height of the water outlet (5).

12. A heat exchange low nitrogen hot water boiler according to claim 11, characterized in that the water storage housing (1) is further provided with a spare port (10), and the height of the water inlet (4) is lower than the height of the spare port (10).

13. A heat exchange low nitrogen hot water boiler according to any one of claims 2 to 7, characterized in that the water storage housing (1) is provided with a drain outlet (12) for discharging impurities and scale, the drain outlet (12) being in communication with the water storage chamber (3).