KR20060031664A - Steam boiler of high efficiency - Google Patents

Abstract

The present invention relates to a high-efficiency steam boiler. Specifically, an elliptic cylindrical tube having a flat upper and lower surfaces and an R-shaped both sides is used, and the moving distance of the combustion gas is increased, so that the feed water can be rapidly converted into steam using less fuel. It is about making high efficiency steam boiler.

To this end, the steam boiler of the present invention is composed of the outside and inside, the preheater is made in the boiler body on the outside, the water supplied initially is introduced into the preheater is heated by the residual heat in the boiler, and then the feedwater movement in the boiler Passing through the furnace to the water reservoir.

In the water supply reservoir, several elliptic pipes are formed in a cylindrical shape in two rows.The water supply is dispersed in several pipes and is heated by the heat of the combustion gas in the process of moving to the steam storage. It is heated by the combustion gas heat of the external and internal auxiliary pipes and discharged to the steam outlet.

On the other hand, the combustion gas moves from the combustion chamber through the combustion gas distribution pipe to the primary and secondary passages and the primary and secondary combustion gas movement paths, heating the elliptic tube to make the water supply steam, and then the external and internal auxiliary pipes of the steam storage. It is a structure that heats the steam in the steam storage while passing through and discharges it to the combustion gas outlet, and the primary and secondary passages are made in the upper and lower parts opposite to each other, so that the combustion gas moves from the first to third When moving to the furnace, the direction of combustion gas goes from top to bottom, that is, zigzag, so the speed of combustion gas is not only reduced but also the moving distance is long. And to make steam.

Pump, burner, preheater, elliptic tube (ellipse column), blocking member, auxiliary tube

Description

Steam boiler of high efficiency

1 is a perspective view showing the appearance of the boiler;

Figure 2 is a perspective view of the inner main part of the boiler.

3 is a cross-sectional view of an elliptic columnar tube (elliptical columnar tube).

4 is a plan view of the X-Y axis of FIG.

5 is a front view showing the movement path of the combustion gas.

※ Names of symbols for the main parts of FIG. 1

1: boiler body

2: water supply pipe

3: pump

4: primary water inlet pipe

5: water preheater

6: secondary water inlet pipe

7: burner

8: steam outlet

9: combustion gas outlet

10: wastewater outlet

※ Name of code for main part of Figure 2

11: water supply passage

12: water reservoir

13: combustion chamber

14: combustion gas distribution pipe

15: Steam Storage

16: assistant

A ₁ : 1st heat pipe (elliptic mold pipe)

A ₂ : 2nd heat pipe (elliptic mold pipe)

B ₁ : primary blocking member

B ₂ : secondary blocking member

C ₁ : Primary passage

C ₂ : secondary passage

D ₁ : primary flue gas flow passage (inside of primary cylinder)

D ₂ : Secondary flue gas flow path (space between primary cylinder and secondary cylinder)

D ₃ : 3rd flue gas flow path (outside of secondary cylindrical)

※ Name of main part of FIG.

a: flat length

b: thickness width

The present invention relates to a high-efficiency steam boiler, and uses an ellipsoidal tube and has a structure for making steam in a short time by increasing the moving distance of the combustion gas.

The ellipsoidal pipe of the present invention (the pipe in Fig. 3 is called an elliptic pipe) has a longer plane length and a narrower width and width in the same volume than the circular pipe used in general, so that the heat transfer area is wide and the heat conduction is fast, and both sides are R-type. As it is a boiler tube with excellent thermal efficiency that can withstand Edo, it has a structure that makes steam by raising the temperature of water supply in a short time with little fuel,

By passing the water supply first through a preheater, the temperature of the water is increased by the residual heat inside the boiler and flows into the water supply path, which saves energy. Also, an auxiliary pipe is built in the steam storage to maintain high temperature steam. It is a structure.

In addition, the progress of the combustion gas proceeds in the opposite direction when the primary and secondary passages are formed in opposite directions at the upper end and the lower end to proceed to the first to third combustion gas flow paths, so that the velocity of the combustion gas decreases and progresses slowly. In addition, the moving distance of the combustion gas is long enough to give sufficient time to heat the water supply. Moreover, since the steam is heated and discharged to the combustion gas outlet through the auxiliary pipes inside and outside the steam storage, the combustion is well consumed and the combustion heat is almost consumed. Therefore, the exhaust temperature is low, and almost no pollutants, which are incombustible gases, are discharged, and there is almost no internal pressure in the moving path of the combustion gas, thereby naturally circulating and discharged.

Conventional steam boilers use a circular tube with a small heat transfer area and a thick thickness. The preheater is manufactured and attached separately, and there is no auxiliary pipe in the steam storage, and the combustion gas speed is short because the combustion gas speed is short. Because of the failure to burn, the temperature of the exhaust gas is high and many pollutants that are incombustible gas are emitted. Low thermal efficiency, high fuel consumption and non-environmental structure.

The boiler of the present invention was invented for the purpose of solving the problems of the conventional steam boiler as described above, because the upper and lower surfaces are flat, the plane length is long, so that the heat transfer area is wide and the width and width are narrow. Firstly, the supplied water is passed through a preheater, and the combustion gas flows through the primary and secondary passages, the primary and secondary passages, and the auxiliary pipes inside and outside the steam storage.

The speed of the combustion gas is reduced and the moving distance is long, so that the heat of the combustion gas heats the water supply as much as possible, and the purpose of the technical task is to provide a high efficiency, economical and environmentally friendly boiler with improved thermal efficiency.

For this purpose, the boiler of the present invention is divided into the outside and the inside.

The pre-heater is made in the main body on the outside, and the incoming water is heated by the residual heat inside the boiler in the pre-heater, and then moves to the water storage through the internal water supply passage.

The water supply reservoir is circularly connected to the first storage pipe and the second heat storage pipe to the steam storage. A blocking member is attached between the pipe and the pipe to form a first row cylinder and a second row cylinder.

The first row cylindrical upper end and the second row cylindrical lower end make a passage without attaching the blocking member so that the combustion gas can move.

The water supplied to the water storage is heated by the heat of the combustion gas in the process of moving to the steam storage with ellipsoidal pipe, and becomes steam and collects in the steam storage.

Meanwhile, the combustion gas moves from the combustion chamber through the combustion gas distribution pipe to the primary combustion gas flow path, which is inside the first row cylinder formed of the first row pipe and the primary blocking member, thereby heating the first row pipe and the vapor reservoir. The second heat pipe is heated while passing through the primary passage of the upper end to the second flue gas flow path, which is a space between the second heat pipe inner and the first heat cylindrical outer wall formed of the second heat pipe and the second blocking member. Is heated again through the secondary passage of the second row cylindrical lower end via the third flue gas flow path outside of the second row cylindrical, and reheats the vapor of the vapor reservoir in an auxiliary pipe inside the vapor reservoir and the combustion gas. To the outlet,

The feed water heated by the heat of the combustion gas in the elliptic mold pipe is steamed and collected in the steam storage, and then heated again by the heat of the auxiliary pipe and discharged to the steam outlet as hot steam.

The details are as follows.

1 is a perspective view showing the appearance of the boiler.

As shown in FIG. 1, the feed water flows from the feed water supply pipe 2 to the primary feed water inlet pipe 4 through the pump 3, and then flows into the preheater 5 made in the boiler body 1 by the residual heat inside the boiler. After heating, the water is transferred to the water storage 12 through the water inlet 11 in the boiler via the secondary inlet pipe 6.

Figure 2 is a perspective view showing the main portion of the inside of the boiler is a state in which the tubes are cut down from the top to explain the interior.

In FIG. 2, the ellipsoidal pipes A ₁ and A ₂ and the blocking members B ₁ and B ₂ are cylindrically connected to the first row and the second row in the water storage 12 and the steam storage 15.

3 is a cross-sectional view of an elliptic cylindrical tube (elliptical movable tube), the upper and lower surfaces are flat in the same volume than the circular tube used in conventional boilers, so the plane length (a) is long, the heat transfer area is wide and the width and width (b) It is narrow, the heat conduction of the combustion gas is fast, it is a boiler tube of the present invention to heat the water supply to quickly produce steam.

2, the first blocking member B ₁ is attached between the first row pipe A ₁ and the pipe A ₁ to form a first row cylinder, and a space is provided so that the combustion gas passes through the upper row. Create the primary passageway (C ₁ ).

In the second row, a secondary blocking member (B ₂ ) is attached between the second row pipe (A ₂ ) and the pipe (A ₂ ) to form a second row cylinder, and a space is provided to allow combustion gas to pass through the lower row. Make a passage (C ₂ ).

4 is a plan view of the X-Y axis of FIG.

2 and 4, the first row cylindrical and second row tubes A _{2 are} provided with a primary blocking member B ₁ between the first row tube A ₁ and the pipe A ₁ . A _second row cylinder with a secondary blocking member B ₂ attached between the pipes A ₂ is well shown.

That is, the first row cylindrical interior is the primary flue gas flow path (D ₁ ), the space between the first row cylindrical and the second row cylindrical cylinders is the secondary flue gas flow path (D ₂ ), the second row cylindrical outer Is the third flue gas flow path (D ₃ ).

5 is a front view showing the movement path of the combustion gas.

Referring to FIG. 5, the combustion gas passing through the combustion gas distribution pipe 14 moves to the primary combustion gas moving path D ₁ inside the first cylindrical column as described in FIGS. Passing through the passage (C ₁ ) to the secondary combustion gas flow path (D ₂ ), which is a space between the first row cylindrical outer and the second row cylindrical inner, the second passage (C) which is the lower end space of the second row cylindrical _It is a front view which shows the process of moving to the _3rd combustion gas flow path D3 which is outside of a 2nd row cylinder via ₂ ).

The steam heated by the heat of the combustion gas in the process of moving the water supply from the water storage 12 to the steam storage 15 is collected in the steam storage 15.

On the other hand, the combustion gas is passed through the combustion gas distribution pipe 14 in the combustion chamber 13, the primary combustion gas flow path that is inside the first row cylindrical made of the first heat pipe (A ₁ ) and the primary blocking member (B ₁ ) ( The first row tube and the upper vapor storage 15 are heated while passing through D ₁ ), and then the first row cylindrical and second row tube A ₂ and the second row pass through the primary passage C _{1 at the} upper end. After the second heat pipe A ₂ is heated in the secondary combustion gas flow path D ₂ , which is a space between the second row cylinders made of the blocking member B ₂ , the second passage ( C ₂ ) and then to the third flue gas flow path (D ₃ ) outside of the second row cylinder to burn the steam after heating the steam in the auxiliary pipe (16) outside the steam reservoir 15 and inside the steam reservoir. Is discharged to the gas outlet (9),

Water is heated by the heat of the combustion gas in the process of moving from the first storage pipe (A ₁ ) and the second heat pipe (A ₂ ) to the steam storage (15) in the water storage (12), thereby becoming a vapor. ), And is heated again by the heat of the combustion gas of the outer and inner auxiliary pipe 16 of the steam reservoir 15 and then discharged to the steam outlet (8).

In summary, the high-efficiency steam boiler of the present invention has the following excellent functions.

First, the conventional conventional boiler uses a circular tube, but since the boiler of the present invention uses an elliptic cylindrical tube as shown in Fig. 3, the heat transfer area is wider in the same volume and the thickness is narrower, so the heat conduction is faster, so the water supply is quick. Because it is steam, hot steam is generated even at low pressure.

Secondly, the preheater is used to increase the temperature of the water supply using the residual heat inside the boiler, and the water supply also uses energy by increasing the temperature of the water supply using the residual heat of the combustion chamber.

Third, by providing auxiliary pipes in the steam storage, high temperature steam can be maintained continuously.

Fourth, because the combustion gas proceeds to the first to third movement paths, the first to second passages are in opposite directions, so the moving distance of the combustion gas is increased and the velocity is increased by moving from top to bottom, i. As the residence time of the combustion gas inside the boiler is reduced, there is enough time to heat the water supply, and thus steam is generated quickly. As a result, the combustion gas is combusted as much as possible, so the exhaust gas temperature is low and the pollutants which are non-combustible materials are almost discharged. Not only that, there is little internal pressure in the flue gas flow path, so the combustion gas is naturally circulated and discharged.

As described above, the high-efficiency steam boiler of the present invention is a high-efficiency, economical, low fuel consumption, and less environmentally friendly because it emits less pollutants, which is a high efficiency to further improve the thermal efficiency to quickly produce high-temperature steam even at low pressure It is a useful invention whose effect is greatly expected.

Claims (4)

The pipe used in the high efficiency steam boiler of the present invention has a flat top and bottom surfaces as shown in FIG. 3, so that the plane length (a) is long and the thickness width (b) is narrow. Structure using endurable ellipsoidal pipes (A ₁ , A ₂ ) A structure in which the feedwater preheater (5) is made in the boiler body (1). Moving the combustion gas through the combustion gas flow pipe 14 in the combustion chamber 13, the first heat shield tube (A ₁₎ and the pipe (A _1), one difference blocks between the member (B ₁₎ is attached in the first column the cylindrical Secondary blocking member (B ₂ ) between the second heat pipe (A ₂ ) and the pipe (A ₂ ) passes through the primary passage (C ₁ ) at the upper end and moves to the primary combustion gas flow path (D ₁ ). ) Is moved to the secondary combustion gas flow path (D ₂ ), which is a space between the inside of the second row cylindrical and the outside of the first row cylindrical, and passes through the secondary passage C ₂ at the lower end, Movement path structure of the combustion gas discharged to the combustion gas outlet 9 through the auxiliary pipe 16 of the outside and inside of the steam reservoir 15 by moving to the external _third combustion gas moving path (D ₃ ). The structure according to claim 3, wherein the auxiliary pipe (16) is made in the vapor reservoir (15).

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