CN216897249U

CN216897249U - Open fire steam boiler

Info

Publication number: CN216897249U
Application number: CN202220412149.0U
Authority: CN
Inventors: 赵家胜
Original assignee: Henan Yongkang Machinery Manufacturing Co ltd
Current assignee: Henan Yongkang Machinery Manufacturing Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-07-05
Anticipated expiration: 2032-02-28

Abstract

The utility model discloses an open fire steam boiler, which relates to the technical field of steam boilers and comprises an outer shell, wherein an inner shell is fixedly connected to the bottom end inside the outer shell, a chimney is fixedly connected to the middle of the top end of the inner shell, one end, far away from the inner shell, of the chimney penetrates through the outer shell, a coal feeding port and an ash discharging port are formed in one side of the inner shell, a fire bar is arranged between the coal feeding port and the ash discharging port and fixedly connected with the inner shell, a fire tube of a furnace is horizontally and fixedly connected to the top end of the inner shell, two ends of the fire tube of the furnace penetrate through the inner shell, a water level observation tube and an automatic water replenishing device are arranged on the outer side of the top end of the outer shell, a steam outlet, a check tube, a water replenishing tube and a pressure relief valve are arranged on the top end of the outer shell, and a water outlet is arranged on the outer side of the bottom end of the outer shell. The open fire steam boiler solves the problem that the heat loss of the existing open fire steam boiler is large.

Description

Open fire steam boiler

Technical Field

The utility model relates to the technical field of steam boilers, in particular to an open-fire steam boiler.

Background

Coal is used as fuel to be combusted in the hearth of the coal-fired steam boiler, so that the released heat heats water in the boiler body, and the water in the boiler body is converted into steam. The vertical coal-fired steam boiler generally comprises a boiler body, wherein a hearth serving as a combustion heat release area is arranged at the lower part of the boiler body, a forward-combustion coal feeding door, a backward-combustion coal feeding door and an ash cleaning door are arranged at the hearth, and a chimney, a steam outlet, a safety valve and other parts are arranged on the boiler body. The fire coal is burnt in the hearth to generate and release heat to heat the furnace body, the generated smoke is discharged through the chimney, and the residual coal ash is cleaned at the ash cleaning door.

The existing open fire steam boiler has the advantages that water is only distributed on the upper part and the wall of the boiler body, so that the heating area of the boiler body is small, the flue gas flow is short, and a large amount of combustion heat is wasted.

Therefore, there is a need for an open-fire steam boiler to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to provide an open-fire steam boiler to solve the problem of large heat loss of the conventional open-fire steam boiler in the background art.

(II) technical scheme

In order to realize the purpose, the utility model is realized by the following technical scheme: the utility model provides an open fire steam boiler, includes the shell body, the inside bottom fixedly connected with of shell body interior casing, the top middle part fixedly connected with chimney of interior casing, the chimney is kept away from the one end of interior casing and is run through the shell body, one side of interior casing is equipped with coal mouth and ash discharge mouth, be equipped with the fire bar between coal mouth and the ash discharge mouth, fire bar and interior casing fixed connection, the horizontal fixedly connected with stove courage firetube in top of interior casing, the both ends of stove courage firetube all run through interior casing, the top outside of shell body is equipped with water level observation pipe and automatic hutch device, the top of shell body is equipped with steam outlet, non return pipe, moisturizing pipe and relief valve, the bottom outside of shell body is equipped with the outlet.

Preferably, the furnace fire tubes are provided with a plurality of groups, the furnace fire tubes are uniformly divided into a plurality of groups, two adjacent groups of furnace fire tubes are mutually vertical, and the furnace fire tubes in the same group are mutually parallel and distributed in a wavy manner.

Preferably, the outsides of the coal feeding port and the ash discharging port are respectively provided with a movable door, and the movable doors are rotatably connected with the inner shell.

Preferably, the handle is fixedly connected with the outer side of the movable door corresponding to the coal feeding port, and the blower interface is fixedly connected with the middle part of the movable door corresponding to the ash discharging port

Preferably, the steam outlet is provided with a plurality of steam outlets which are uniformly distributed at the top end of the outer shell.

Preferably, the chimney and the inner shell are both connected with the outer shell in a sealing mode.

(III) advantageous effects

Compared with the prior art, the utility model provides an open-fire steam boiler, which has the following beneficial effects:

this open fire steam boiler, through setting up multiunit furnace pipe firetube, and two sets of adjacent furnace pipe firetubes mutually perpendicular, a plurality of furnace pipe firetubes of the same group are parallel to each other and are wavy distribution, when not influencing smoke discharge, improve heating effect, reduce heat loss.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view of a structure of the present invention;

fig. 3 is a schematic top view of the structure of the present invention.

In the figure: 1. a chimney; 2. a steam outlet; 3. a water level observation pipe; 4. an outer housing; 6. a blower interface; 7. a water outlet; 8. a non-return pipe; 9. an automatic water replenishing device; 10. a water replenishing pipe; 11. a pressure relief valve; 12. a furnace fire tube; 13. an inner housing; 14. a coal feeding port; 15. a fire bar; 16. an ash discharge port.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, an open fire steam boiler comprises an outer shell 4, an inner shell 13 fixedly connected to the bottom end of the outer shell 4, a chimney 1 fixedly connected to the middle of the top end of the inner shell 13, a chimney 1 connected to the inner shell 13 and having one end penetrating the outer shell 4, a coal charging port 14 and an ash discharging port 16 formed on one side of the inner shell 13, a fire bar 15 disposed between the coal charging port 14 and the ash discharging port 16, the fire bar 15 fixedly connected to the inner shell 13, a flue fire tube 12 horizontally and fixedly connected to the top end of the inner shell 13, a plurality of flue fire tubes 12 penetrating the inner shell 12 at both ends, a plurality of flue fire tubes 12 arranged in groups, two adjacent flue fire tubes 12 being perpendicular to each other, a plurality of flue fire tubes 12 arranged in parallel and wave-shaped arrangement, a water level observation tube 3 and an automatic water replenishing device 9 disposed on the outside the top end of the outer shell 4, the top of shell body 4 is equipped with steam outlet 2, non-return pipe 8, moisturizing pipe 10 and relief valve 11, steam outlet 2 has a plurality ofly, 2 evenly distributed of a plurality of steam outlets are on the top of shell body 4, the bottom outside of shell body 4 is equipped with outlet 7, the outside of coal feeding mouth 14 and ash discharge mouth 16 all is equipped with the dodge gate, the dodge gate rotates with interior casing 13 to be connected, with the corresponding dodge gate outside fixed connection's of coal feeding mouth 14 handle, with the corresponding dodge gate middle part fixedly connected with air-blower interface 6 of ash discharge mouth 16.

The working principle is as follows: when the chimney heat exchanger is used, coal is added into the inner shell 13 through the coal adding port 14, the blower is connected with the blower interface 6, the blower is started, air is supplied into the inner shell 13 through the blower interface 6, water in a cavity between the inner shell 13 and the outer shell 4 is heated through heat released during coal combustion, the heat exchange area can be increased under the action of the furnace pipe fire tube 12, meanwhile, the bottom end of the chimney 1 is arranged in the outer shell 4, the heat in smoke can be absorbed, automatic water replenishing can be carried out under the action of the automatic water replenishing device 9, the water level height in the outer shell 4 can be conveniently checked through the water level observation tube 3, manual water replenishing can be carried out through the water replenishing tube 10, and the supply and energy loss of boiler water can be reduced under the action of the return-stop tube 8.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An open-fire steam boiler comprising an outer shell (4), characterized in that: the inner bottom end of the outer shell (4) is fixedly connected with an inner shell (13), the top middle part of the inner shell (13) is fixedly connected with a chimney (1), one end, far away from the inner shell (13), of the chimney (1) penetrates through the outer shell (4), one side of the inner shell (13) is provided with a coal feeding port (14) and an ash discharging port (16), a fire bar (15) is arranged between the coal feeding port (14) and the ash discharging port (16), the fire bar (15) is fixedly connected with the inner shell (13), the top end of the inner shell (13) is horizontally and fixedly connected with a furnace fire tube (12), two ends of the furnace fire tube (12) penetrate through the inner shell (13), the top end outer side of the outer shell (4) is provided with a water level observation tube (3) and an automatic water replenishing device (9), the top end of the outer shell (4) is provided with a steam outlet (2), a check tube (8), a water replenishing tube (10) and a pressure relief valve (11), and a water outlet (7) is formed in the outer side of the bottom end of the outer shell (4).

2. An open-fire steam boiler according to claim 1, characterized in that: the furnace fire tubes (12) are multiple, the furnace fire tubes (12) are equally divided into multiple groups, two adjacent groups of furnace fire tubes (12) are perpendicular to each other, and the furnace fire tubes (12) in the same group are parallel to each other and distributed in a wavy manner.

3. An open-fire steam boiler according to claim 1, characterized in that: the outer sides of the coal feeding port (14) and the ash discharging port (16) are respectively provided with a movable door, and the movable doors are rotatably connected with the inner shell (13).

4. An open-fire steam boiler according to claim 1, characterized in that: the handle is fixedly connected with the outer side of the movable door corresponding to the coal feeding port (14), and the middle part of the movable door corresponding to the ash discharging port (16) is fixedly connected with a blower interface (6).

5. An open-fire steam boiler according to claim 1, characterized in that: the steam outlet (2) is provided with a plurality of steam outlets, and the steam outlets (2) are uniformly distributed at the top end of the outer shell (4).

6. An open-fire steam boiler according to claim 1, characterized in that: the chimney (1) and the inner shell (13) are both connected with the outer shell (4) in a sealing mode.