CN214469316U - Round-hearth vertical pipe double-fire-mouth double-fire-grate multi-return back-burning furnace - Google Patents

Abstract

The utility model provides a circular chamber riser double-fire-mouth double-grate multi-return back-burning furnace, which relates to the technical field of boilers and aims to solve the problems that the prior back-burning furnace adopts a heat exchange structure with a built-in pipe cavity, the heat exchange area is effective, 70 percent of heat source is wasted, the heat source is discharged along with high-temperature flue gas, and more folded plates are arranged inside, so that the smoke dust is easy to accumulate and the main reason of lower heat exchange efficiency is also caused, and comprises a dust hopper box; the upper end of the ash hopper box is fixedly butted with a reverse burning furnace box body; a round hearth furnace body is vertically and fixedly arranged at the right end of the inner cavity of the back-burning furnace box body, and the lower end of the inner cavity of the round hearth furnace body is communicated with the inner cavity of the ash hopper box; the upper part of the middle part of the left end of the round hearth furnace body is fixedly butted with a horizontal flue gas furnace, and the upper end of the flue gas furnace is fixedly connected with the upper end of the inner cavity of the counter-burning furnace box body. The utility model discloses in because the perpendicular fixed mounting in the middle part of ash bucket case left end lateral wall has the air-supply line, can guarantee the intake simultaneously again.

Description

Round-hearth vertical pipe double-fire-mouth double-fire-grate multi-return back-burning furnace

Technical Field

The utility model relates to the technical field of boilers, more specifically say, in particular to circle thorax riser two furnace mouths double grate multi-circuit becomes the backfire furnace.

Background

A boiler is a device that heats water into hot water or steam using the heat energy of fuel or other energy sources.

Anti-formula boiler that burns as in patent application CN201410519640.3, including the casing with establish the furnace body in the casing, be the water layer between casing and the furnace body, the furnace body top is equipped with fume extractor, the lower part of casing is equipped with water inlet and clean dirty mouthful, the top is equipped with delivery port, its characterized in that: the water layer is internally provided with a clapboard which separates the water layer into a front part and a rear part; an upper grate and a lower grate are arranged in the furnace body, and the upper grate is a plurality of water pipes communicated with the front water layer and the rear water layer; a combustion chamber is arranged above the upper fire grate, and a reverse combustion chamber is arranged below the upper fire grate; the smoke exhaust device comprises a conversion box, a discharge flue and an induced draft fan arranged at the outlet of the discharge flue, the conversion box is fixed at the top of the furnace body, and the discharge flue is communicated with the conversion box; the back burning chamber is communicated with the conversion box through a plurality of smoke pipes. Energy is saved, no pollution is caused to the environment, and the water heating efficiency is high.

The existing back-burning furnace mostly adopts a heat exchange structure with a built-in pipe cavity, the heat exchange area is effective, 70% of heat sources are wasted, the heat sources are discharged along with high-temperature flue gas, unburned and sufficient carbon monoxide is easily doped in the high-temperature flue gas, the influence on the environment is large, in addition, in order to increase the heat exchange area, more folded plates are arranged inside, the smoke dust is easy to accumulate, and the heat exchange efficiency is also the main reason for lower heat exchange efficiency.

Therefore, in view of the above, the present invention provides a round-hearth riser double-fire-gate multi-pass back-burning furnace, which is improved by research aiming at the existing structure and defects, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a round chamber riser double-furnace mouth double-grate multi-return becomes the reverberatory furnace, in order to solve the heat transfer structure that current reverberatory furnace adopted built-in lumen more, heat transfer area is effective, 70% heat source is wasted, the heat source is together discharged along with the high temperature flue gas, and still easily mix in the high temperature flue gas and unburned abundant carbon monoxide, it is great to the environmental impact, in addition, usually, for increasing heat transfer area, inside folded plate is more, cause its smoke and dust to easily pile up, also be the problem that leads to the lower main reason of heat transfer efficiency.

The purpose and the efficacy of the round hearth vertical pipe double-fire-mouth double-fire grate multi-turn back-burning furnace are achieved by the following specific technical means:

the round hearth vertical pipe double-fire-mouth double-fire-grate multi-return back-burning furnace comprises an ash hopper box; the upper end of the ash hopper box is fixedly butted with a reverse burning furnace box body; a round hearth furnace body is vertically and fixedly arranged at the right end of the inner cavity of the back-burning furnace box body, and the lower end of the inner cavity of the round hearth furnace body is communicated with the inner cavity of the ash hopper box; a horizontal flue gas furnace is fixedly butted at the upper part of the middle part of the left end of the round hearth furnace body, and the upper end of the flue gas furnace is fixedly connected with the upper end of the inner cavity of the back burning furnace box body; the lower end of the flue gas furnace is fixedly connected with the upper end of a heat exchange grate on the bottom plane of the inner cavity of the back-burning furnace box body below the flue gas furnace; and a filtering air inlet baffle inclined to the right is fixedly arranged at the position, close to the left end of the round hearth furnace body, in the inner cavity of the ash bucket box.

Further, the ash bucket box is including drawing ash mouth A, lime-ash export and air-supply line, the interval has evenly been seted up three on the ash bucket box front end lateral wall and has been drawn ash mouth A, and wherein two are drawn ash mouth A and are located the left side of filtering air inlet baffle, and the perpendicular fixed mounting in ash bucket box left end lateral wall middle part has the air-supply line, installs the air door on the air-supply line, and the lime-ash export of rectangle form is seted up at the right-hand member lateral wall middle part of ash bucket box.

Further, the reverse combustion furnace box body comprises a water return port, a water inlet, an in-furnace exhaust pipe A, an in-furnace exhaust pipe B and a water feeding pipe, the water inlet and the water return port are fixedly installed in the front side wall of the reverse combustion furnace box body in a staggered mode from top to bottom, the water return port is located on the reverse combustion furnace box body which is located below the left end of the heat exchange grate, the water inlet is fixedly installed at the position where the round hearth furnace body and the flue gas furnace are connected, the two vertical in-furnace exhaust pipes A and the two vertical in-furnace exhaust pipes B are uniformly and fixedly installed at the left and right sides of the top plane of the reverse combustion furnace box body at intervals, and the water feeding pipe is fixedly installed on the reverse combustion furnace box body on the right side of the in-furnace exhaust pipe B.

Further, circle thorax furnace body includes coal feeding mouth of pipe and mouth of pipe, circle thorax furnace body main part is wide reducing formula furnace body narrow down, and on two furnace bodies of the upper and lower difference of thickness of circle thorax furnace body right-hand member respectively fixed mounting have the coal feeding mouth of pipe, the upper end middle part fixed mounting of circle thorax furnace body has vertical mouth of pipe, installs the air door in the mouth of pipe.

Further, the flue gas stove is including drawing grey mouthful B, the perpendicular fixed mounting in upper end of flue gas stove has two bilateral symmetry to draw grey mouthful B, draws grey mouthful B's upper end to pass the reverse burning furnace box body, and flue gas stove inner chamber bottom plane is the inclined plane structure that the high right-hand member of left end is low.

Furthermore, the heat exchange grate comprises heat exchange tubes, and the upper end of the heat exchange grate is fixedly connected with the bottom of the flue gas furnace through vertical heat exchange tubes uniformly spaced.

Furthermore, it includes the air intake to filter the air inlet baffle, filter and open in the air inlet baffle and be equipped with the air intake that runs through around the front and back interval is even about.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. because the air inlet pipe is vertically and fixedly arranged in the middle of the side wall of the left end of the ash hopper box, the air door is arranged on the air inlet pipe, the rectangular ash residue outlet is formed in the middle of the side wall of the right end of the ash hopper box, when the air inlet pipe is opened, ash accumulated in the ash hopper box also moves rightwards along with wind, dust is prevented from being blown out, and the filter air inlet baffle can block fallen coal from entering the inner cavity of the left end, so that the coal is ensured to be fully combusted, and meanwhile, the air inlet amount can be ensured.

2. Because fixed mounting has the filler pipe again on the back-burning furnace box on blast pipe B right side in the stove, heat transfer water can follow the water inlet and get into, discharges from the return water mouth, because the position that return water mouth and water inlet are wrong mutually makes circulating water can the at utmost contact with the heat transfer grate to guarantee the heat transfer effect, whole circulating water is full of back-burning furnace box inner chamber moreover, and heat transfer area is great, can avoid the heat to scatter and disappear excessively, improves thermal conversion efficiency.

3. Because the plane of the bottom of the inner cavity of the flue gas furnace is of an inclined plane structure with a high left end and a low right end, the flue gas furnace is a buffer box for high-temperature flue gas, the heat exchange area can be increased conveniently, and smoke carried in the high-temperature flue gas can fall back to the round hearth furnace body along the inclined plane, so that the cleaning labor of the flue gas furnace is reduced.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic diagram of the right front upper axial view structure of the present invention.

Fig. 2 is a schematic view of the upper left rear side of the present invention.

Fig. 3 is a schematic top view of the present invention.

Fig. 4 is a schematic sectional view of the position a-a in fig. 3 according to the present invention.

FIG. 5 is a schematic view of the front side plate of the box body of the reverse burning furnace in a moving-out state.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a dust hopper box; 101. digging an ash hole A; 102. an ash outlet; 103. an air inlet pipe; 2. a reverse burning furnace box body; 201. a water return port; 202. a water inlet; 203. a furnace exhaust pipe A; 204. a furnace exhaust pipe B; 205. a water feeding pipe; 3. a round hearth furnace body; 301. a coal charging pipe orifice; 302. a smoke port; 4. a flue gas furnace; 401. digging an ash hole B; 5. a heat exchange grate; 501. a heat exchange pipe; 6. filtering the air inlet baffle; 601. and an air inlet.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 5:

the utility model provides a round chamber vertical pipe double-fire mouth double-fire grate multi-return back-burning furnace, which comprises an ash hopper box 1; the upper end of the ash hopper box 1 is fixedly butted with a back-burning furnace box body 2; the right end of the inner cavity of the back-burning furnace box body 2 is vertically and fixedly provided with a round hearth furnace body 3, and the lower end of the inner cavity of the round hearth furnace body 3 is communicated with the inner cavity of the ash hopper box 1; a horizontal flue gas furnace 4 is fixedly butted at the upper part of the middle part of the left end of the round hearth furnace body 3, and the upper end of the flue gas furnace 4 is fixedly connected with the upper end of the inner cavity of the back-burning furnace box body 2; the lower end of the flue gas furnace 4 is fixedly connected with the upper end of a heat exchange grate 5 on the bottom plane of the inner cavity of the lower back-burning furnace box body 2; a filtering air inlet baffle 6 inclined to the right is fixedly arranged at the position close to the left end of the round hearth furnace body 3 in the inner cavity of the ash hopper box 1.

Referring to fig. 1, the ash hopper box 1 comprises an ash drawing opening a101, an ash residue outlet 102 and an air inlet pipe 103, three ash drawing openings a101 are uniformly formed in the side wall of the front end of the ash hopper box 1 at intervals, two of the ash drawing openings a101 are located on the left side of the filtering air inlet baffle 6, the air inlet pipe 103 is vertically and fixedly installed in the middle of the side wall of the left end of the ash hopper box 1, an air door is installed on the air inlet pipe 103, the rectangular ash residue outlet 102 is formed in the middle of the side wall of the right end of the ash hopper box 1, when the air inlet pipe 103 is opened, ash accumulated in the ash hopper box 1 also moves rightwards along with wind, and dust is prevented from being blown out in a dust return mode.

Wherein, the back-burning furnace box body 2 comprises a water return port 201, a water inlet 202, a furnace inner exhaust pipe A203, a furnace inner exhaust pipe B204 and a water feeding pipe 205, the water inlet 202 and the water return port 201 are fixedly installed in the front end side wall of the back-burning furnace box body 2 in a staggered manner from top to bottom and from left to right, the water return port 201 is positioned on the back-burning furnace box body 2 which is arranged at the lower left end of the heat exchange grate 5, the water inlet 202 is fixedly installed at the position where the round hearth furnace body 3 is connected with the flue gas furnace 4, the two vertical furnace inner exhaust pipes A203 and the furnace inner exhaust pipes B204 are uniformly and fixedly installed at the left and right intervals in the middle part of the top plane of the back-burning furnace box body 2, the water feeding pipe 205 is fixedly installed on the back-burning furnace box body 2 at the right side of the furnace inner exhaust pipe B204, the heat exchange water can enter from the water inlet 202 and be discharged from the water return port 201, the circulating water can be in contact with the heat exchange grate 5 to the greatest extent due to ensure the heat exchange effect, and whole circulating water is full of the inner chamber of the box body 2 of the reverse combustion furnace, so that the heat exchange area is large, excessive heat loss can be avoided, and the heat conversion efficiency is improved.

Wherein, circle thorax furnace body 3 includes coal feeding mouth of pipe 301 and mouth of a cigarette 302, and circle thorax furnace body 3 main part is wide reducing formula furnace body narrow down, and fixed mounting has coal feeding mouth of pipe 301 respectively on two upper and lower different furnace bodies of thickness of circle thorax furnace body 3 right-hand member, and the upper end middle part fixed mounting of circle thorax furnace body 3 has vertical mouth of a cigarette 302, installs the air door in the mouth of a cigarette 302, can guarantee the unblocked nature of burning in the stove, guarantees to fully burn.

Wherein, flue gas stove 4 is including drawing ash hole B401, the perpendicular fixed mounting in upper end of flue gas stove 4 has two bilateral symmetry draw ash hole B401, draw ash hole B401's upper end and pass the back-burning furnace box 2, 4 inner chamber bottom planes of flue gas stove are the inclined plane structure that the high right-hand member of left end is low, flue gas stove 4 is the baffle-box of high temperature flue gas, can be convenient for increase heat transfer area, and the smoke and dust that carries in high temperature flue gas can be followed the inclined plane and fallen back to round chamber furnace body 3 in, reduce flue gas stove 4's clean labour.

Wherein, the heat exchange grate 5 comprises heat exchange tubes 501, the upper end of the heat exchange grate 5 is fixedly connected with the bottom of the flue gas furnace 4 through the vertical heat exchange tubes 501 which are evenly spaced, and the heat exchange grate 5 can ensure the heat exchange efficiency of circulating water.

The filtering air inlet baffle 6 comprises an air inlet 601, the filtering air inlet baffle 6 is provided with the air inlets 601 which penetrate left and right and are evenly spaced front and back, and the filtering air inlet baffle 6 can prevent coal from entering the inner cavity at the left end, so that the coal can be fully combusted, and the air inlet amount can be ensured.

The specific use mode and function of the embodiment are as follows: in the using process, the heat exchange water can enter from the water inlet 202 and be discharged from the water return port 201, the circulating water can be in maximum contact with the heat exchange grate 5 due to the staggered position of the water return port 201 and the water inlet 202 so as to ensure the heat exchange effect, the whole circulating water is filled in the inner cavity of the back-burning furnace body 2, the heat exchange area is large, the excessive dissipation of heat can be avoided, the heat conversion efficiency is improved, when the air inlet pipe 103 is opened, the dust accumulated in the dust hopper box 1 can also move rightwards along with the wind, the dust is prevented from blowing out, the air inlet 601 which penetrates left and right and is uniformly spaced is arranged in the filtering air inlet baffle 6, the coal falling can be prevented from entering the inner cavity at the left end by the filtering air inlet baffle 6, the coal can be ensured to be fully combusted, the air inlet amount can be ensured at the same time, the bottom plane of the inner cavity of the flue gas furnace 4 is of an inclined plane structure with the left end high-end and the right end low, the flue gas furnace 4 is a buffer box of high-temperature flue gas, can be convenient for increase heat transfer area, and the smoke and dust that carries in the high temperature flue gas can follow the inclined plane and fall back to round thorax furnace body 3 in, reduce the clean labour of flue gas stove 4.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (6)

1. The round hearth vertical pipe double-fire-mouth double-fire grate multi-return back-burning furnace is characterized in that: the method comprises the following steps: a hopper box (1);

the upper end of the ash hopper box (1) is fixedly butted with a reverse burning furnace box body (2);

the reverse combustion furnace comprises a reverse combustion furnace box body (2), wherein a round hearth furnace body (3) is vertically and fixedly installed at the right end of the inner cavity of the furnace box body (2), and the lower end of the inner cavity of the round hearth furnace body (3) is communicated with the inner cavity of an ash hopper box (1); the reverse combustion furnace box body (2) comprises a water return port (201), a water inlet (202), a furnace inner exhaust pipe A (203), a furnace inner exhaust pipe B (204) and a water feeding pipe (205), the water inlet (202) and the water return port (201) are fixedly installed in the front end side wall of the reverse combustion furnace box body (2) in a vertically staggered mode, the water return port (201) is located on the reverse combustion furnace box body (2) below the left end of the heat exchange grate (5), the water inlet (202) is fixedly installed at the position where the round hearth furnace body (3) and the smoke furnace (4) are connected, the middle of the top plane of the reverse combustion furnace box body (2) is uniformly and fixedly installed with the vertical furnace inner exhaust pipe A (203) and the furnace inner exhaust pipe B (204) at intervals, and the water feeding pipe (205) is fixedly installed on the reverse combustion furnace box body (2) on the right side of the furnace inner exhaust pipe B (204);

the device comprises a round hearth furnace body (3), a horizontal flue gas furnace (4) is fixedly butted at the middle part close to the upper part of the left end of the round hearth furnace body (3), and the upper end of the flue gas furnace (4) is fixedly connected with the upper end of the inner cavity of a back-burning furnace box body (2);

the lower end of the flue gas furnace (4) is fixedly connected with the upper end of a heat exchange grate (5) on the bottom plane of the inner cavity of the lower back-burning furnace box body (2);

the ash hopper box (1) and the filtering air inlet baffle (6) inclined to the right are fixedly arranged at the position, close to the left end of the round hearth furnace body (3), in the inner cavity of the ash hopper box (1).

2. The round-hearth riser double-fire-mouth double-grate multi-turn-back-combustion furnace as claimed in claim 1, characterized in that: ash hopper case (1) is including drawing out ash mouth A (101), lime-ash export (102) and air-supply line (103), three drawing out ash mouth A (101) have evenly been seted up at the interval on ash hopper case (1) front end lateral wall, and wherein two draw out ash mouth A (101) and are located the left side of filtering air inlet baffle (6), and ash hopper case (1) left end lateral wall middle part is perpendicular fixed mounting has air-supply line (103), installs the air door on air-supply line (103), and ash-ash export (102) of rectangle form are seted up at the right-hand member lateral wall middle part of ash hopper case (1).

3. The round-hearth riser double-fire-mouth double-grate multi-turn-back-combustion furnace as claimed in claim 1, characterized in that: circle thorax furnace body (3) are including coal feeding mouth of pipe (301) and mouth of a cigarette (302), circle thorax furnace body (3) main part is narrow reducing formula furnace body under the wide, and on the furnace body of two upper and lower thickness differences of circle thorax furnace body (3) right-hand member respectively fixed mounting have coal feeding mouth of pipe (301), the upper end middle part fixed mounting of circle thorax furnace body (3) has vertical mouth of a cigarette (302), installs the air door in mouth of a cigarette (302).

4. The round-hearth riser double-fire-mouth double-grate multi-turn-back-combustion furnace as claimed in claim 1, characterized in that: flue gas stove (4) are including drawing grey mouthful B (401), the perpendicular fixed mounting in upper end of flue gas stove (4) has two bilateral symmetry to draw grey mouthful B (401), draws the upper end of grey mouthful B (401) and passes reverse burning furnace box body (2), and flue gas stove (4) inner chamber bottom plane is the inclined plane structure that the high right-hand member of left end is low.

5. The round-hearth riser double-fire-mouth double-grate multi-turn-back-combustion furnace as claimed in claim 1, characterized in that: the heat exchange grate (5) comprises heat exchange tubes (501), and the upper end of the heat exchange grate (5) is fixedly connected with the bottom of the flue gas furnace (4) through the vertical heat exchange tubes (501) which are uniformly spaced.

6. The round-hearth riser double-fire-mouth double-grate multi-turn-back-combustion furnace as claimed in claim 1, characterized in that: filter air inlet baffle (6) and include air intake (601), it has air intake (601) that the front and back interval is even to run through about having seted up in filtering air inlet baffle (6).

Images